Search Results — 2000 specimen records retrieved (1624 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  POM201767  Abronia maritima L. M. Booth 1932-5-25 1113 Orange Balboa Island, Newport Bay. Comment
  RSA585055  Abronia maritima D. Atwood 1993-3-28 17715 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
  RSA764470  Abronia maritima Doris Bowers 1957-5-16 207 Orange Corona Del Mar 3 Comment
  UCR228888  Abronia maritima Dick Newell, Don Millar 2011-7-29 216 Orange South Coast, Bolsa Chica Ecological Reserve, 1.3 miles southeast of Pacific Coast Hwy at Warner Ave. 5 Comment
  HSC16138  Abronia umbellata B. Francis 1964-5-2 41 Orange Newport Beach Comment
  UCR42433  Abronia umbellata A. C. Sanders 1986-5-31 6528 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  UC536922  Abronia villosa Lawrence M. Booth 1932-7-30 1341 Orange 2 mi from ocean; Santa Ana River Comment
  POM742  Abronia villosa var. aurita C. F. Baker 1903-4-1 4125 Orange Anaheim Comment
  RSA13158  Abronia villosa var. aurita Percy C. Everett 1935-6-28 7260 Orange 0.8 miles east of Atwood S side of RR tracks 107 Comment
  RSA0126616  Acacia Fred M. Roberts 2012-4-27 7497 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  UCR169911  Acacia Scott D. White, Jennifer H. Jones 2005-4-26 10972 Orange Laguna Beach area., City of Laguna Beach. 549 Nyes Place. Undeveloped lot within a residential neighborhood. Proposed for new home Comment
  RSA651412  Acacia baileyana L. Holderman 1949-2-13 s.n. Orange Collected on Lemon Heights, 5 mi. west of Santa Ana. 54 Comment
  SEINET10487478  Acacia farnesiana Charlene A. Bennett 1976-7-22 Bennett 443 Orange Cultivated and native plants collected around the San Clemente Beach area. 3 Comment
  RSA0028022  Acacia longifolia Fred M. Roberts 2012-9-6 7695 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  RSA752716  Acacia longifolia Fred M. Roberts, Sandy Leatherman, Jennifer Pareti 2009-4-14 7152 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  IRVC22784  Acacia mearnsii Fred M. Roberts 1985-6-2 1839 Orange El Camino Real, 0.1km SE Beach Rd., Capistrano Beach 5 Comment
  IRVC8  Acer macrophyllum T. Price 1965-4-17 s.n. Orange Santa Ana Mtns: Silverao Cyn. Peninsular Ranges Comment
Read comments
Nov 15 2013
  IRVC9265  Acer macrophyllum B. Gittins 1963-4-18 171 c Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  POM8751  Acer macrophyllum Philip A. Munz, R. D. Harwood 1920-4-23 3730 Orange Santa Ana Mountains, along stream, Silverado Canon. 549 Comment
  UC718396  Acer macrophyllum P. C. Everett 1935-6-19 7239 Orange 2 6/10 mi below (w) Summit Truck Trail; Santa Ana Mts., Trabuco Canyon 914 Comment
  RSA0013961  Achillea millefolium Fred M. Roberts 2008-5-14 6969 Orange Lomas de Santiago: Loma Ridge, upper Bee Flat Cyn. below Loma Ridge Rd., 1.3 km N Bee Peak and 5.4 km NW Bolero Lookout, Irvine Ranch Conservancy. 377 Comment
  UCR228779  Achillea millefolium Dick Newell, E. D. Hill 2011-6-7 169 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon 341 Comment
  RSA734282  Achnatherum coronatum A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34645 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA773562  Achnatherum coronatum Fred M. Roberts 1999-5-14 5218 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout 451 Comment
  RSA797665  Achnatherum coronatum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49769 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCD50245  Achnatherum coronatum Peter Kamb 1948-6-19 1090 Orange Erect or ascending cespitose perennial with stout stems 15-25dm high. Holy Jim Canyon, Santa Ana Mts. Orange County, California 609 Comment
  UCSB47975  Acmispon glaber Roberts, Jr., Fred 1980-2-17 Orange Along Dana Strand road on the north side, on the bluff west of Dana Marina, Dana Point 56 Comment
  SBBG3414  Acmispon heermannii var. heermannii J. M. Tucker 1941-5-30 261 Orange Ortega Hwy, 2 to 3 mi E of western boundary of Cleveland Nat Forest Comment
  UC639077  Acourtia microcephala P. C. Everett 1939-8-5 Orange Anaheim Comment
  RSA746472  Acourtia microcephala R. E. Riefner Jr. 2008-5-13 08- 76 -a Orange Near City of Orange, W side of Hicks Haul Rd., Irvine Ranch Reserve, Management Area 11. Comment
  RSA699138  Actaea spicata Unspecified s.n. Orange Brook Bank. Comment
  UCR98134  Adenostoma fasciculatum George K. Helmkamp, E. A. Helmkamp 1997-4-24 1662 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
  RSA12898  Adenostoma fasciculatum var. fasciculatum E. R. Johnson, Percy C. Everett 1935-1-14 6288 Orange Open firebreak on slopes of Sierra Peak, along road to Claymine Canyon 610 Comment
  RSA358  Adenostoma fasciculatum var. fasciculatum J. T. Howell 1927-7-29 515 Orange Near east boundary of Rancho Santa Ana. 152 Comment
  CDA21565  Adiantum capillus-veneris Mark A. Elvin, D. G. Kelch 2006-12-9 5323 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  RSA788246  Adiantum capillus-veneris R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49622 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  RSA542521  Adiantum jordanii Fred M. Roberts 1988-3-15 3866 Orange Rancho Mission Viejo: west lateral to Central Gabino Canyon, 4.4 km SE Point Rancho Survey Marker. 191 Comment
  RSA703722  Adiantum jordanii D. E. Bramlet, Fred M. Roberts 2003-3-27 3355 Orange Donna O'Neill Reserve. NE corner of the reserve 274m west of Cristianitos Rd. and 1.46km north of the E-W access road. 152 Comment
  RSA716088  Aeonium Fred M. Roberts 2006-7-27 6397 Orange San Joaquin Hills: Laguna Beach, Temple Hill, 731 Nyes Place, 1.0km NNE Golf Island. 174 Comment
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Dec 21 2019
  RSA716089  Aeonium Fred M. Roberts 2006-7-27 6396 Orange San Joaquin Hills: Laguna Beach, Temple Hill, 731 Nyes Place, 1.0km NNE Golf Island. 174 Comment
Read comments
Dec 21 2019
  UCR239501  Agave americana A. C. Sanders, Fred M. Roberts 2008-4-8 34737 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  CAS-BOT-BC180  Agoseris cinerea LeRoy Abrams 1901-6-15 1816 Orange Santiago Peak 914 Comment
  UCR150907  Agoseris retrorsa Valerie Soza, LeRoy Gross 1999-6-10 513 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  RSA414866  Albizia lophantha Albert J. Perkins 1914-1-1 s.n. Orange Between (illegible) Beach and Aliso Canyon. Comment
  RSA588772  Alchemilla occidentalis Fred M. Roberts, Carol A. Roberts, D. E. Bramlet 1990-5-6 4592 Orange Santa Ana Mnts.: Chiquito Basin, San Juan Trail, c.a. 2.5 km SSE Los Pinos Peak. 915 Comment
  RSA443849  Allium haematochiton Karlin G. Marsh 1984-2-14 s.n. Orange Casper s Regional Park: just south of Lower Lucas Canyon, ca. 135 m. 135 Comment
  RSA0051391  Allium praecox Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49664 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA410097  Allophyllum glutinosum N. C. Cooper 1949-5-1 3948 Orange San Juan Canyon. 610 Comment
  UCD169758  Allophyllum glutinosum R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49604 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. 290 Comment
  CAS-BOT-BC170689  Alnus rhombifolia C. B. Wolf 1931-3-6 1855 Orange Trabuco Camp grounds, Trabuco Canyon, W slope of the Santa Ana Mts. 609 Comment
  RSA2074  Alnus rhombifolia C. B. Wolf 1931-3-6 1855 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  RSA696427  Alnus rhombifolia Keith E. Hoffmaster 1930-3-9 269 Orange Santa Ana Mts. Comment
  UC1543134  Alnus rhombifolia Donald G. Nelson 1938-12-26 Orange in creek bottom near Myers Ranch; Santa Ana Mountains, Black Star Canyon, Black Star Creek Comment
  RSA798189  Amaranthus albus R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49593 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  POM121853  Amaranthus albus Marcus E. Jones 1924-8-26 s.n. Orange Newport. 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
  RSA402963  Amaranthus albus Albert J. Perkins 1912-10-15 s.n. Orange Peatlands near head Newport Bay. Comment
  SD136944  Amaranthus blitoides Steve Boyd, Tim Ross 1994-9-14 8345 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Lucas Canyon trail at stream crossing in Aliso Canyon 309 Comment
  UCSB52950  Amaranthus blitoides Roberts, Fred 1983-9-26 Orange Santa Ana Mtns.; Lion Canyon, Chiquito Basin Trail, 3.6 km. NNE Lower San Juan Picnic Ground; 4.0 km SSE Los Pinos Peak 820 Comment
  CLARK-A1528-4888  Amaranthus deflexus John C. Roos 1937-5-21 2065 Orange Orange 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
  UCR23422  Amaranthus powellii John C. Roos 1937-8-31 2558 Orange San Juan Capistrano [beach] Comment
  POM201937  Amaranthus powellii subsp. powellii L. M. Booth 1932-7-21 1295 Orange Anaheim Creek Comment
  RSA416883  Amblyopappus pusillus L. C. Wheeler 1932-6-25 859 Orange Newport Bay. 1 Comment
  CAS-BOT-BC13608  Ambrosia acanthicarpa John Thomas Howell 1927-10-22 3164 Orange In Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA699676  Ambrosia acanthicarpa Keith E. Hoffmaster 1934-1 s.n. Orange Near Santa Ana. Comment
  SEINET2029172 Image available Ambrosia bipinnatifida Lawrence M. Booth 1932-5-25 1110 Orange Balboa Island Comment
  CAS-BOT-BC13769  Ambrosia chamissonis David D. Keck 1933-9-8 2522 Orange Sunset Beach Comment
  HSC5659  Ambrosia chamissonis J. W. Johnson 1960-8-18 Orange Newport Beach, beside Newport bay, near Hwy. 101 Comment
  IRVC29760  Ambrosia chamissonis Barry S. Nerhus, Mark A. Elvin 2006-11-4 13 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  UCR109972  Ambrosia chamissonis R. D. Goeden, Don W. Ricker 1970-2-19 s.n. Orange South Coast, Newport Beach, NW edge of town between Seashore Dr., Neptune Ave., 56th and 58th Streets 2 Comment
  CAS-BOT-BC13768  Ambrosia chamissonis David D. Keck 1933-9-8 2522 Orange Sunset Beach Comment
  RSA549992  Ambrosia confertiflora Scott D. White 1992-9-23 856 Orange Vicinity of Olinda, near city of Brea, immediately N of Carbon Cyn Rd & E of Placentia Ave.; ca. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  RSA751522  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-8-7 35990 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UC537039  Ambrosia psilostachya Lawrence M. Booth 1932-7-19 1277 Orange Bolsas Marsh Comment
  SEINET11844102  Ambrosia psilostachya S. A. Thompson, Rawlins, J. E. 1988-1 5268 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  POM12449  Ammannia robusta P. A. Munz 1922-9-2 6353 Orange Ponds in Laguna Canyon 46 Comment
  CDA19010  Ammannia robusta B. Tidwell 2000-8-3 PDR 1223096 Orange Southern California; Douglass Rd., Anaheim. 0 Comment
  RSA415297  Amorpha californica C. B. Wolf, E. R. Johnson 1933-11-3 5525 Orange Main Divide Motorway Bedford Peak Firebreak and Silverado Motorway. Comment
  CAS-BOT-BC177256  Amorpha fruticosa C. Epling; H. Lewis 1940-4-21 s.n. Orange Hills 6 miles East of San Juan, Capistrano Comment
  RSA3304  Amorpha fruticosa B. D. Stark 1931-10-17 1332 Orange Rancho Santa Ana, Santa Ana Canyon. 137 Comment
  UC1543190  Amorpha fruticosa Donald G. Nelson 1935-4-6 220 Orange n summer ranger station (near the main hwy of San Juan Canyon, e of San Juan Capistrano, s of Cleveland Nat. Forest); Santa Ana Mountains Comment
  UC527692  Amorpha fruticosa B. D. Stark 1931-10-17 2463 Orange Santa Ana Canyon Rancho Santa Ana 137 Comment
  RSA722351  Amsinckia intermedia Minor Warne 1934-03 s.n. Orange Laguna Canyon Comment
  UC1061778  Amsinckia intermedia A. Lewis Mar 1934 349 Orange San Juan Hills; Corona Quad., San Juan Hills 396 Comment
  UC1191048  Amsinckia intermedia Francia Chisaki 1957-4-3 925 Orange 3 mi s Irvine (Hwy 101) Comment
  RSA0089442  Amsinckia intermedia Helen D. Geis 1902-03 s.n. Orange Santiago Creek Canyon. Comment
  RSA0089445  Amsinckia intermedia C. B. Wolf 1931-3-6 1864 Orange East side of Orange Co. Park. 152 Comment
  UCD119275  Amsinckia intermedia Francia Chisaki 1957-4-3 925 a Orange On Highway 101, ca. 3 miles S of Irvine. Comment
  IRVC29097  Amsinckia menziesii Fred M. Roberts 1989-3-17 4212 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  IRVC202  Amsinckia menziesii var. intermedia J. Pierce 1965-4-25 Orange Corona del Mar. Newport Beach Comment
  IRVC25566  Amsinckia menziesii var. menziesii Fred M. Roberts 1989-3-17 4212 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA688982  Anagallis arvensis Fred M. Roberts, D. E. Bramlet 2003-4-10 5640 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  RSA789229  Anagallis arvensis Naomi Fraga, Duncan S. Bell 2009-5-11 2712 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  POM201808  Anagallis arvensis L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  POM201809  Anagallis arvensis L. M. Booth 1932-6-28 s.n. Orange Bolsas Marsh. Comment
  RSA699139  Anagallis arvensis Effie Jessup s.n. Orange Waste ground 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-BC400332  Anemopsis californica E. Frost 1996-5-11 12 Orange Newport Back Bay, 150 yards in along bike path 7 Comment
  RSA750120  Anemopsis californica A. C. Sanders, Fred M. Roberts 2008-8-7 35986 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 185 Comment
  JEPS104670  Anemopsis californica John L. Morrison 1937-6-22 2594 Orange marsh between the road (Hwy 101) and the ocean Comment
  CAS-BOT-BC84724  Anthemis cotula Carl B. Wolf 1932-7-7 s.n. Orange Bryant Ranch, Bryant Ave. At pump house Comment
  RSA734807  Anthriscus caucalis A. C. Sanders, Fred M. Roberts 2008-5-6 35255 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
  UCR186365  Anthriscus caucalis Robert DeRuff 1995-4-30 483 Orange Southern Coast, Newport Beach, Newport Back Bay, at and above intersection of San Joaquin Hills Rd. and Backbay Dr. 2 Comment
  UCR190998  Antirrhinum coulterianum A. C. Sanders, Fred M. Roberts 2008-4-22 35050 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado 488 Comment
  UCR193365  Antirrhinum coulterianum A. C. Sanders, Mitch Provance 2008-5-20 35426 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR657  Antirrhinum coulterianum Geoffrey Matthews, Jim Hearne, Robin Maetche 1971-5-15 s.n. Orange Peninsular Range; Santa Ana Mtns., 3 mi north of Morrill Valley on Hwy 74 Comment
  RSA737892  Antirrhinum multiflorum R. E. Riefner 2008-7-21 08 -248 Orange Irvine Ranch Reseve, N Irvine Ranch, middle Fremont Canyon, E slope along Black Star SCE road. 718 Comment
  UCR232762  Antirrhinum multiflorum Robt. L. Allen, Trisha Smith, Mike Kahle 2006-6-21 s.n. Orange Peninsular Range; Santa Ana Mtns., Fremont Canyon, ridge to the east, saddle between Fremont and Black Star Canyon watersheds, north end of unpaved Lakeview Road, base of Southern California Edison tower #33-1 M33T1A 761 Comment
  UC1929693  Antirrhinum multiflorum R. E. Riefner Jr. 2008-7-21 08 -248 Orange Irvine Ranch Reserve, North Irvine Ranch, middle Fremont Canyon, east slope along Black Star SCE Rd. Comment
  RSA552930  Antirrhinum nuttallianum subsp. nuttallianum Fred M. Roberts, R. E. Riefner 1989-5-2 4331 Orange Aliso-Wood Canyons Regional Park: Lower Wood Canyon, 3.5 kilometers SSE Multon Peak. 43 Comment
  UC672564  Antirrhinum nuttallianum subsp. subsessile H. L. Mason 1926-4-25 2907 Orange 5 mi s Laguna Comment
  UCSB52904  Apiastrum angustifolium Roberts, Fred 1983-5-4 Orange Laguna Beach; upper Rancho Laguna Canyon, 1.7 km. SSW Top of the World School; 1.4 km. ENE Cactus Point 200 Comment
  UCR12549  Apium graveolens J. S. Davis 1972-5-6 720506- 22 Orange South Coast, Newport Beach; corner of San Joaquin Hills Road and Back Bay Road 0 Comment
  POM201612  Apium graveolens L. M. Booth 1932-6-7 1158 Orange Newport Lagoon. Comment
  POM3324  Apium graveolens D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon Comment
  RSA6027  Apocynum cannabinum B. D. Stark 1932-7-15 3876 Orange Ranch Santa Ana River bottom below the ranch houses. 1220 Comment
  UCR47864  Arabis glabra David Charlton 1987-5-4 s.n. Orange Santa Ana Mtns., Chiquito Basin, Trail from Blue Jay Campground to Chiquito Falls 762 Comment
  RSA0126213  Arabis glabra P. A. Munz, R. D. Harwood 1920-4-25 3721 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  UCR228889  Araujia sericifera Dick Newell, Don Millar 2011-7-19 215 Orange Peninsular Range; Santa Ana Mtns., Irvine Regional Park 181 Comment
  LA42396  Arctostaphylos glandulosa W. Pequegnat; 1938-4-16 sn Orange Santa Ana Mountains, Indian Truck Trail 914 Comment
Read comments
Aug 29 2015
  UCD166561  Arctostaphylos glandulosa Dylan O. Burge 2016-2-23 2090 Orange Santa Ana Mountains, vicinity of Blue Jay Campground, along spur off of Long Canyon Road. 1060 Comment
  UCR273486  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42606 Orange Peninsular Range; Santa Ana Mountains, North Main Divide Road (Forest Rte 3S04) between Hwy 74 and Los Pinos Spring, 1.7 km NW (312 deg. ) of El Cariso Fire Station 959 Comment
  UCR273488  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42608 Orange Peninsular Range; Santa Ana Mountains, dirt road off North Main Divide Road (Forest Rte 3S04), north of Los Pinos Spring, 3.87 km NW (286 deg. ) of El Cariso Fire Station 1101 Comment
  POM254919  Arctostaphylos glandulosa subsp. glandulosa W. Pequegnat 1940-6-19 s.n. Orange Head of West Ladd Canyon, Santa Ana Mts. Comment
  RSA626920  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15505 Orange Hotshot Camp, north of Ortega Highway (Highway 74). 900 Comment
  RSA629320  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15523 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  SEINET12524586 Image available Arctostaphylos glauca J. Taylor 1963-1 753 Orange Hills above laguna beach. 122 Comment
  RSA544  Arctostaphylos glauca var. glauca J. T. Howell 1927-6-26 223 Orange Claymine Canyon, near Sierra Peak. 457 Comment
  SEINET5585509  Arctotheca prostrata R. E. Riefner Jr. 2013-1 13 -125 Orange City of Irvine, Irvine Valley College, Irvine Center Dr. near College St. 37 Comment
  SEINET4002143  Argemone munita var. robusta G. B. Ownbey, F. Ownbey 1954-1 2168 Orange Between Modjesca Peak and Santiago Peak. 1524 Comment
  UCR132566  Aristea capitata Robert DeRuff 1985-5-6 116 Orange Southern Coast, Newport Back Bay, near the old salt works 3 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
  RSA683064  Aristida adscensionis Fred M. Roberts 2003-3-19 5609 Orange Donna O'Neill Land Conservancy: Ridges west of Cristianitos Cyn., 1,750m NNW Sycamore gate and 315m W Cristianitos Rd. (Canada Gobernadora., 33 deg 29'51'' N, 117 deg 34'13''W 192 Comment
  RSA588775  Aristida purpurea var. parishii Fred M. Roberts, Carol A. Roberts, D. Bontrager 1990-4-28 4588 Orange Rancho Mission Viejo: Christianitos Canyon, 4.0 kilometers E Playa Survey Marker., UTM Z11 37 06 600m N, 4 47 600m E. 174 Comment
  RSA588885  Aristida purpurea var. purpurea Fred M. Roberts, D. Bontrager 1990-6-5 4669 Orange Rancho Mission Viejo: Uper Gabino Canyon, near Orange County line, 3.9 kilometers E Point Ranch Survey Marker., UTM Z11 37 10 300m N, 4 52 100m E. 280 Comment
  UCR209342  Aristida purpurea var. purpurea Fred M. Roberts 2008-4-22 6923 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, along Haul Road near asphalt plant, 2.2 km east-northeast of Rattlesnake Reservoir Dam and 2.2 km west-northwest of Bee Peak, Irvine Ranch Conservancy 188 Comment
  SBBG14801  Arnica discoidea P. H. Raven 1962-5-18 17751 Orange 4.8 mi above gate on Silverado Cyn Truck Trail 1066 Comment
  POM201737  Artemisia biennis L. M. Booth 1932-7-4 1250 Orange Newport Lagoon. Comment
  RSA696761  Artemisia biennis J. Russell Bruff 1930-10-26 s.n. Orange Santa Ana River bed. Comment
  CDA23141  Artemisia californica R. E. Riefner Jr. 2006-8-25 06 -410 Orange City of Dana Point, Salt Creek Beach Park, vicinity of Dana Strand Road and Selva Road. Comment
  RSA0044743  Artemisia californica Fred M. Roberts, Arthur Davenport 2003-9-11 6018 Orange Rancho Mission Viego: Donna O'Neill Land Conservancy, Cristianitos Cyn., 85m SSW Sycamore Gate, 35m W of Cristianitos Road. 119 Comment
  SD187333  Artemisia californica R. E. Riefner Jr. 2006-8-25 06 410 Orange City of Dana Point, Salt Creek Beach Park, vicinity of Dana Strand Rd. and Selva Rd. 2 Comment
  RSA0062670  Artemisia californica Norman Willis 1948-2-8 s.n. Orange In foothills about 8 miles east of Orange. 304 Comment
  POM201845  Artemisia douglasiana L. M. Booth 1932-7-23 1302 Orange Corona del Mar, Newport Beach Comment
  RSA751431  Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-7-3 35689 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
  CAS-BOT-BC90566  Artemisia dracunculus John Thomas Howell 1927-9-24 3118 Orange on sandy island in Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  RSA292462  Artemisia dracunculus James Henrickson 1973-10-21 8052 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy along La Palma Ave., just N. of Santa Ana River. Comment
  RSA0042766  Artemisia palmeri Fred M. Roberts 2012-7-18 7669 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
  RSA784180  Artemisia vulgaris J. D. Olmsted 1959-8-26 836 Orange Drainage area to Santiago Reservoir. Mouth of Black Star Canyon east of Santiago Reservoir. 320 Comment
  IRVC409  Arthrocnemum subterminale J. B. Anderson 1966-4-16 589 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  RSA549704  Asclepias californica Terry J. O Brien 1992-5-23 1204 Orange Cleveland National Forest, trail S of Blue Jay Campgrounds. 1037 Comment
  UCSB48010  Asclepias californica Roberts, Fred 1980-6-29 Orange Santa Ana Mtns.; Viejo Canyon, 0.4 km. N Calif. Rte. 74; 2.2 km. ENE San Juan Guard Station 341 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
  RSA0104747  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35519 Orange Middle section of Weir Canyon, SSE of Walnut Canyon Reservoir. 225 Comment
  RSA788899  Asclepias fascicularis Fred M. Roberts 2008-6-12 7041 Orange Lomas de Santiago: Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  UC537015  Asclepias fascicularis Lawrence M. Booth 1932-7-21 1291 Orange Anaheim Meadows Comment
  UC729854  Asclepias fascicularis Carl B. Wolf 1932-7-7 3853 Orange about 1 mi e Los Alamitos Blvd. (Bixby Ave., Bryant Ranch, 100 ft. w of se corner of NE40 of NW160 of Sect.32) Comment
  UCR233746  Asclepias fascicularis Fred M. Roberts 2008-6-12 7041 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  UCR46568  Asclepias fascicularis B. G. Pitzer, D. C. Hawks 1986-10-21 0353 C 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
  RSA743466  Asparagus aethiopicus Fred M. Roberts, Carol A. Roberts 2008-9-28 7118 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  IRVC16667  Aspidotis californica Gordon A. Marsh, K. G. Marsh 1979-9-24 Orange Pine Canyon, along dirt road above Blue Light Mine, Santa Ana Mountains Comment
  IRVC180  Asplenium bulbiferum Kirk Hayward 1965-4-20 HS0562 Orange Costa Mesa: 17th Street. Southern Coastal Comment
  IRVC181  Asplenium bulbiferum Janet Morgan 1965-3-25 HS0563 Orange Newport Beach: Beacon Bay. Southern Coastal Comment
  RSA793262  Aster exilis R. F. Thorne 1984-1 s.n. Orange Newport Back Bay. Comment
  IRVC20503  Aster subulatus var. ligulatus Fred M. Roberts 1983-9-29 1137 Orange San Joaquin Freshwater Marsh, 1.9km NNW UCI campus center, Irvine 2 Comment
  RSA232225  Aster subulatus var. ligulatus James Henrickson 1970-10-3 5360 Orange 3 miles NE of Huntington Beach just N of Bolsa Chica Salt Marsh. 0 Comment
  IRVC26585  Astragalus didymocarpus var. didymocarpus Karlin G. Marsh 1983-4-11 s.n. Orange Laguna Beach: Sycamore Hills; dirt road surface of central ridge line. southern coastal Comment
  CAS-BOT-BC186732  Astragalus gambelianus Steve Boyd; Tim Ross 1992-5-20 7458 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail, upstream 1/4 mile to spur trail leading to old mining habitations in side canyon 411 Comment
  RSA732089  Astragalus gambelianus A. C. Sanders, Fred M. Roberts 2008-3-25 34547 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  SD152863  Astragalus gambelianus Steve Boyd, Tim Ross, etc 1992-5-20 7458 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness area. Western edge of the wilderness in Lucas Canyon along stream 299 Comment
  UCR12616  Astragalus trichopodus subsp. leucopsis R. G. Sullivan 1972-4-16 720416- 8 Orange Santa Ana River Channel, river bottom near Coal Canyon Road 122 Comment
  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
  POM17799  Astragalus trichopodus var. lonchus P. A. Munz 1923-9-7 7770 Orange Mouth of Trabuco Canyon 305 Comment
  UCR234155  Astragalus trichopodus var. lonchus Dick Newell, Don Millar 2012-2-28 229 Orange Peninsular Range; Santa Ana Mtns. Region, Lomas de Santiago, along Hangmans Tree Rd. at Santiago Creek 357 Comment
  RSA749468  Athysanus pusillus Fred M. Roberts 1999-4-22 5188 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.8 km SE Silverado Sch. and 2.3 km NNW Bolero Lookout. 396 Comment
  RSA737850  Atriplex R. E. Riefner 2006-10-2 06 -466 Orange City of Lake Forest, N of Portola Pwy and immediately W of SR 241 freqay at avocado orchard, vicinity of Tomato Spring. 206 Comment
  SBBG132290  Atriplex amnicola R. E. Riefner Jr. 2005-9-16 05 -666 Orange upper Newport Bay, E of Bayside Dr at confluence with Big Cyn 6 Comment
  UCR240254  Atriplex amnicola R. E. Riefner Jr. 2006-2-12 06- 21 Orange South Coast, N end of City of San Clemente, along N-bound I-5, immediately S of Camino de Estrella exit ramp 66 Comment
  RSA737231  Atriplex amnicola R. E. Riefner 2006-5-7 06 -178 Orange N end of City of San Clemente, along I5, N side, immediately S of Camino De Estrella exit ramp. 66 Comment
  RSA696737  Atriplex argentea subsp. expansa J. R. Bruff 1930-10-19 s.n. Orange Delhi Rd. Comment
  RSA234533  Atriplex californica James Henrickson 1970-8-15 5282 Orange 3 miles NW of Huntington Beach, in Monanthochloe Salicornica dominated area north of Bolsa Bay, 3/4 mile SE of Warner Ave. 0 Comment
  UC450972  Atriplex californica F. A. MacF. 1931-3-1 2927 Orange Laguna Beach Laguna Beach (crevices of sea cliffs) Comment
  UCR106275  Atriplex californica B. G. Pitzer, M. Georgiady 1997-4-5 3085 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
  POM201811  Atriplex canescens L. M. Booth 1932-7-1 1249 Orange Newport Lagoon. Comment
  RSA234538  Atriplex canescens James Henrickson 1970-7-24 5018 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  UCR240102  Atriplex canescens Dick Newell, Judy Booth 2012-9-26 294 Orange South Coast, Newport Beach, Back Bay Drive at the Salt Dike 3 Comment
  CAS-BOT-BC170192  Atriplex canescens subsp. canescens I. M. Johnston 1918-9-3 2149 Orange Laguna Beach 6 Comment
  IRVC25344  Atriplex canescens subsp. canescens Helen Camp 1988-12-7 12 Orange Aliso Canyon, 2.6km NNE Aliso Peak, Aliso-Wood Canyon Regional Park 37 Comment
  RSA452402  Atriplex coulteri Anstruther Davidson 1908-5-1 1800 Orange Newport Bay Comment
  RSA580939  Atriplex coulteri D. E. Bramlet 1994-4-30 2377 Orange San Joaquin Hills. At the head of Bommer canyn, approximatly 30m. NE of the rideline truck trail, near peak 1033. 296 Comment
  CAS-BOT-BC170606  Atriplex glauca A. C. Sanders 2008-4-29 35139 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff's trianing facility, c. 1.5 mi. SW of Santiago Reservoir, Black Star Canyon 7.5' - Peninsular Range, Santa Ana Mtns. 335 Comment
  SD236264  Atriplex glauca D. Bramlet 1994-2-27 2365 Orange Newport Beach 7.5 Quad. Roadside area, some 120 meters east of intersection of Irvine Ave and University Drive, approximately 1 meter south of University Drive. 14 Comment
  CAS-BOT-BC170116  Atriplex lentiformis Carl B. Wolf 1927-7-23 666 Orange Just no. of San Clemente on coastal slopes. Comment
  SEINET4135192  Atriplex lentiformis Grant D. Brown 1949-10-9 399 Orange Located 4 miles north of San Clemente at base of coastal bluffs on highway 101.; 0 6 Comment
  RSA478320  Atriplex leucophylla Albert J. Perkins 1923-5-3 s.n. Orange Laguna Beach. Comment
  RSA593870  Atriplex lindleyi R. E. Riefner 1994-6-18 94 -427 Orange San Clemente State Beach Comment
  POM631  Atriplex pacifica I. M. Johnston 1918-5-4 1931 Orange Laguna Beach. Comment
  UC517553  Atriplex pacifica John Thomas Howell 1927-7-17 2788 Orange 1 mi n Laguna Beach; n of Laguna Beach 30 Comment
  UCR127688  Atriplex rhagodioides D. E. Bramlet 2003-6-17 3466 Orange Upper Newport Bay, Big Canyon, 128 m east of Backbay Drive and 70 m south of the existing maintenance road 8 Comment
  RSA234507  Atriplex rosea James Henrickson 1970-7-25 5068 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March 0 Comment
  UCSB48235  Atriplex rosea Roberts, Jr., Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, below Crown Valley Overpass 49 Comment
  UC1136334  Atriplex semibaccata A. Lewis Apr 1934 389 Orange Celery Corona Quad., Celery 0 Comment
  RSA74876  Atriplex semibaccata Elroy Robinson 1935-6-26 s.n. Orange Along Santa Fe Railway, El Toro, south of Los Angeles. Comment
  RSA292521  Atriplex serenana James Henrickson 1972-10-21 8064 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine., Irrigated grassland eventually to be used for large Newport Beach Business Center. 46 Comment
  RSA734916  Atriplex suberecta A. C. Sanders, Fred M. Roberts 2008-6-17 35472 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  SBBG119391  Atriplex suberecta T. Perring with T. Pinckard 1994-3-2 Orange Marine Helicopter Station at the corner of Moffett Dr and Jamboree Rd, Tustin 11 Comment
  SD220052  Atriplex suberecta Mark A. Elvin 2004-5-2 3424 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  RSA453975  Atriplex watsonii F. R. Fosberg 1931-8-19 7285 Orange Newport Bay. 0 Comment
  SD232218  Atriplex watsonii Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1100 Orange Seal Beach Natiional Wildlife Refuge: Seal Beach U.S. Naval Weapons Station, across access road from Nature Center. 3 Comment
  UC1543075  Atriplex watsonii Donald G. Nelson 1935-6-27 323 Orange s mouth of Newport Bay (on bluffs facing ocean beaches s of Corona del Mar); s of mouth Newport Bay, s of Corona del Mar Comment
  IRVC29089  Avena barbata Fred M. Roberts 1989-3-17 4204 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA699980  Avena barbata Jeanne Paxton 1934-5-1 s.n. Orange Orange County Dam Comment
  UCR239638  Avena barbata Fred M. Roberts 2012-4-24 7510 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
  UCR99871  Avena barbata Scott D. White 1993-3-5 1114 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA732058  Avena fatua A. C. Sanders, Fred M. Roberts 2008-3-25 34516 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR192634  Avena fatua A. C. Sanders, Fred M. Roberts 2008-3-25 34516 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC66214  Azolla filiculoides John Thomas Howell 1927-7-6 2663 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  IRVC15200  Baccharis douglasii Karlin G. Marsh 1977-9-16 Orange Huntington Beach: Huntington Cental Park, Shipley Nature Center southern coastal Comment
  RSA93209  Baccharis douglasii F. W. Peirson 1923-9-7 4035 Orange Holy Jim Canyon, trail to Santiago Peak, Santa Ana Mts 595 Comment
  CHSC35829  Baccharis emoryi James Henrickson 1972-10-21 8047 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave, just N of Santa Ana River. 60 Comment
  RSA5324  Baccharis emoryi B. D. Stark 1932-12-30 14471 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA731922  Baccharis emoryi Fred M. Roberts, Sandy Leatherman 2007-11-27 6657 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
  RSA788  Baccharis emoryi J. T. Howell 1927-10-22 764 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  SDSU6382  Baccharis emoryi D. F. Howe 1945-10-20 1353 Orange Santa Ana River between Orange and Corona. Comment
Read comments
Jan 24 2013
  UCR205870  Baccharis malibuensis R. E. Riefner Jr., T. Smith 2007-6-22 07- 275 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Road 545 Comment
  CAS-BOT-BC99446  Baccharis pilularis B. Pitzer; T. Tennant 1997-11-8 3374 Orange Crystal Cove State Park: Pelican Point Area, grassland area between Pacific Coast Hwy & the bike trail 30 Comment
  RSA747711  Baccharis pilularis Fred M. Roberts 2008-9-10 7098 Orange Dana Point: Dana Point Headlands, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. Comment
  UCD129430  Baccharis pilularis B. Pitzer 1997-11-8 3373 Orange Crystal Cove State Park: Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. Open areas adjacent to parking lot. 30 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
  IRVC517  Baccharis pilularis subsp. consanguinea A. S. Boughey 163 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  CAS-BOT-BC106732  Baccharis salicifolia Ira L. Wiggins 1966-2-4 20418 Orange Along watercourse near mouth of Trabuco Canyon Comment
  POM202374  Baccharis salicifolia L. M. Booth 1932-6-9 1179 Orange Santa Ana River, 1 mile from ocean. Comment
  RSA357140  Baccharis salicifolia R. F. Thorne 1975-4-6 45577 Orange Head of Newport Bay. 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
  UCR223420  Baccharis salicifolia Dick Newell, Don Millar 2011-3-1 066 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  RSA587883  Baccharis salicifolia Fred M. Roberts 1990-5-8 4616 Orange Soquel Canyon, 1.2km NNW Gilman Peak 240 Comment
  JEPS21245  Baccharis salicifolia subsp. salicifolia L. M. Booth 1932-6-9 1179 Orange Coastal Santa Ana River Basin Comment
  UC1228549  Baccharis salicifolia subsp. salicifolia C. L. Hitchcock and C. V. Muhlick 22118 Orange 1 mi n Brea; mouth of Brea Canyon Comment
  UCR46557  Baccharis salicina B. G. Pitzer, L. F. LaPre 1986-10-20 0310 Orange Peninsular Range; Santa Ana Mtns., Siphon Reservoir, c. 5 mi NE of Irvine and c. 1 mi NE of intersection Irvine Blvd and Sand Canyon Ave 122 Comment
  RSA699553  Baccharis viminea Kenneth Beard 1934-02 s.n. Orange Walnut grove on Freeman Street, Santa Ana. 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
  RSA797908  Barbarea orthoceras R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49818 Orange Santa Ana Mountains: Trabuco Canyon Comment
  IRVC25221  Bassia hyssopifolia Fred M. Roberts 1986-11-4 3202 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  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
  LA105231  Batis maritima Barry A. Prigge; 1988-9-11 8302 Orange eastern edge of Newport Beach, ca 0.25 mi. E of Pacific Coast Hwy bridge over Santa Ana River/Greenville-Banning channels, along old Santa Ana River channel near oil wells 0 Comment
  POM122280  Batis maritima Marcus E. Jones 1924-8-26 s.n. Orange Balboa Comment
  POM201706  Batis maritima L. M. Booth 1932-6-9 1184 Orange Newport Bay. Comment
  SD80954  Batis maritima James Henrickson 1970-7-25 5034 b Orange 3.5 miles northwest of Huntington Beach on sandy margin of Bolsa Bay, 0.25 southeast of Warner Avenue along Pacific Coast Highway 0 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
  POM17862  Bebbia juncea Philip A. Munz 1923-7-8 73226 Orange Santa Ana River Canyon Comment
  POM50753  Bebbia juncea Helen D. Geis 1902-12-6 s.n. Orange Dry bed of Santiago Creek Canyon Comment
  RSA30446  Bebbia juncea Elisabeth Norland 1942-7-3 11283 Orange Rancho Santa Ana RR track, 1/4 mile E of entrance Comment
  RSA627788  Beta vulgaris Scott D. White 1998-6-26 6784 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  RSA800  Bidens laevis J. T. Howell 1927-10-23 768 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA594871  Bidens laevis Fred M. Roberts, W. R. Ferren, David E. Bramlet 1991-11-29 4826 Orange Santa Ana Canyon: adjacent to Yorba Linda Regional Park, ca. 1.8 km E of Imperial Highway crossing 91 Comment
  CAS-BOT-BC127999  Bidens pilosa Ira L. Wiggins 1965-11-5 20328 Orange Orange grove on N. side of Chapman Avenue near Kraemer Road, Fullerton Comment
  SD236124  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-5-6 35266 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, slope SE of road junction along ridge road, near head of Aqua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR190981  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-4-22 34997 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  RSA652086  Bloomeria crocea Bob Edwards 1948-5-2 sn Orange Orange: 4.5 miles east of Orange in an open field near a Catholic cemetery. 107 Comment
  RSA698736  Bloomeria crocea Minor Warne 1934-04 s.n. Orange Panerama Heights Comment
  CAS-BOT-BC478932  Bloomeria crocea var. crocea Palmer Stockwell 1935-5-12 1218 Orange 7 mi. E. of Mission San Juan, on Elsinore Rd. Comment
  RSA548869  Bloomeria crocea var. crocea Bernard Jaroslow 1989-5-29 B 25 Orange Santiago Canyon: Along the Morrow Trail out of Live Oak Canyon, below truck trail. Comment
  CAS-BOT-BC31015  Bolboschoenus maritimus Helen D. Geis 1902-3-1 s.n. Orange Ditch banks, Peat lands. 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
  UCR85532  Bolboschoenus maritimus subsp. paludosus Scott D. White 1993-4-28 1289 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  UCR151112  Bothriochloa barbinodis Scott D. White, Pam DeVries 1998-12-10 7203 Orange Santa Ana Mtns foothills, Brea: Tonner Canyon and adjacent slope, just east of Hwy 57 crossing 198 Comment
  UCSB50629  Bothriochloa barbinodis Roberts, Fred 1982-6-30 Orange Laguna Nigel, Niguel Hill, Pacific Island Dr; 2.0 km SE Aliso Park; 1.3 km E Bench Mark 133 Comment
  UCSB56502  Bothriochloa barbinodis Marsh, G.; Marsh, K. 1977-11-21 Orange Santa Ana Mtns, San Juan Hot Springs Comment
  RSA60252  Bowlesia incana E. K. Balls 1950-3-7 14446 Orange Rancho Santa Aa Botanic Garden. Comment
  RSA625803  Bowlesia incana Scott D. White, Noel Davis 1998-4-24 6339 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd. just N of jct. w/ Valley Vista Wy. Large proposed subdivision called 'Saddleback Meadow.' 305 Comment
  SD215371  Bowlesia incana Scott D. White, Noel Davis 1998-4-24 6339 Orange Aliso Creek watershed, east of El Toro Road, just north of junction with Valley Vista Way. Large proposed subdivision called Saddleback Meadow. Near abandoned ranch site. 299 Comment
  UCD127256  Bowlesia incana Ronni Stachelek; Bob Anderson, Frances Schropshire 1995-3-1 39 Orange Newport Beach, Upper Newport Bay on Back Bay Drive ca. 1/2 miles north of Shellmaker Island. Comment
  CDA22564  Brachypodium distachyon J. B. Anderson 1966-4-22 615 Orange San Joaquin Hills: Central Los Trancos Canyon. 0 Comment
  RSA702704  Brachypodium distachyon Scott D. White, Michael Honer 2004-5-17 10385 Orange City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  RSA709698  Brachypodium distachyon Scott D. White, Jennifer H. Jones 2005-4-26 10973 Orange City of Laguna Beach. 549 Nyes Place. Undeveloped lot within a residential neighborhood. Proposed for new home. Comment
  UCR140793  Brachypodium distachyon Robin G. Marushia 2004-5-4 024 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
  SD143983  Brassica nigra Scott D. White 1993-3-5 1118 Orange Marine Corps Air Station: SE of Red Hill Ave and NE of Barranca. 14 Comment
  UCSB18585  Brassica rapa Reed, Robert 1964-3-26 Orange 150 feet N of corner of Orangewood and Euclid Ave., Anaheim 60 Comment
  UCSB47972  Brassica rapa Roberts, Fred 1980-2-17 Orange At corner of Calle Arroyo and Calle Siega; near San Juan Creek; south of Highway 74; San Juan Capistrano 39 Comment
  RSA650639  Brassica rapa var. rapa Daniel Truong 1991-5-5 8 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of closed area. Comment
  RSA651825  Brassica rapa var. rapa Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange 60 Comment
  RSA0069232  Brassica tournefortii Fred M. Roberts, Megan Lulow 2009-3-18 7137 Orange Santa Ana Mtns. Region: Lomas de Santiago: Loma Ridge at Calochortus Ridge, near East Loma Ridge Road, 2.6 km NW Bee Peak, &3.4 km NE of Rattlesnake Reservoir Dam. 375 Comment
  SEINET7907478  Brassicaceae G. A. Wojciechowski 1967-1 Orange San Juan Capistrano beside rd 610 Comment
  RSA792  Brickellia californica J. T. Howell 1927-11-5 801 Orange Racnho Santa Ana, W side. Comment
  RSA797477  Brickellia californica R. F. Thorne 1977-11-21 49990 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  IRVC22177  Brickellia nevinii Gordon A. Marsh, K. G. Marsh 1985-9-22 Orange Silverado Truck Trail, ridge north of Williams Canyon adjacent to White Canyon, 2.7km SE Silverdo Guard Station; Santa Ana Mountains 500 Comment
  RSA655021  Brodiaea filifolia R. A. Hamilton 1998-6-19 s.n. Orange SCE easement north of the Foothill Transportation Corridor. The site is 1.3km north of El Toro Road and 1.6km east of Portola Parkway. 290 Comment
  CAS-BOT-BC144328  Bromus Ira L. Wiggins 1966-3-5 20519 Orange About 0.5 mile west of El Torro Post Office, along Highway S-18. Comment
  RSA184177  Bromus carinatus I. L. Wiggins 1966-3-16 20528 Orange Entrance to Firestone Boy Scout Reservation. Comment
  RSA792246  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-4-22 35025 Orange Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 366 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
  SD241668  Bromus carinatus A. C. Sanders 2008-4-29 35144 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 miles SW of Santiago Reservoir (Black Star Canyon 7.5'Q) 334 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
  UCR191476  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-4-8 34751 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
  UCR193046  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-6-17 35486 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
  UCR193466  Bromus catharticus A. C. Sanders, T. B. Salvato 2008-5-13 35355 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
  RSA0013959  Bromus diandrus Fred M. Roberts 2008-5-7 6939 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
  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
  SD144128  Bromus hordeaceus Scott D. White 1997-3-28 4845 Orange Santa Ana Mts.; Above Modjeska Cyn in patches and trailsides of coastal sage scrub and N facing slopes 427 Comment
  UCR140787  Bromus hordeaceus Robin G. Marushia 2004-5-4 009 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
  RSA542368  Bromus hordeaceus Fred M. Roberts 1988-4-10 3915 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout., UTM 37 31 1000m N, 4 39 600m E. 415 Comment
  HSC9305  Bromus madritensis subsp. rubens C. L. Hitchcock, C. V. Muhlick 1964-3-17 23060 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  RSA681951  Bromus rubens Fred M. Roberts, David E. Bramlet 2003-3-7 5565 Orange Donna O'Neill Land Conservancy; West slopes of Christianitos Canyon, Middle Ridge Trail, 0.1km NW Gato Gate. 123 Comment
  UCD59518  Bromus rubens Ira L. Wiggins 1966-3-16 20526 Orange Near entrance to Firestone Boy Scouts Reservation. Comment
  RSA650420  Bromus rubens Howard Cook 1948-4-15 13 Orange Collected on highway 14, about 8 miles east of Fullerton. 91 Comment
  RSA734819  Bromus sterilis A. C. Sanders, Fred M. Roberts 2008-5-6 35251 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
  UC124604  Cakile edentula A. Davidson, M. D. 1908-5-2 1789 Orange s Newport Bay Newport Bay Comment
  RSA484558  Cakile edentula subsp. edentula Anstruther Davidson 1789 Orange Newport Beach; Santa Anna [Ana]. Comment
  CHSC90613  Cakile maritima Sean P. Gallagher 1988-4-2 6 Orange Bolsa Chica State Beach 1 mi s of Warner Ave. 0 Comment
  CSUSB527  Cakile maritima Cesareo Perez 1971-5-12 S. N. Orange Huntington State Beach, Pacific Coast Highway at Brookhurst Comment
  POM318767  Cakile maritima var. maritima Patricia Wilder Andrews 1972-6-27 5386 Orange Capistrano Beach. Drainage area: Pacific Ocean. 3 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
  SEINET6168371  Calandrinia breweri R. E. Riefner Jr. 2008-1 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. USGS 7.5' Quad: Black Star Canyon 496 Comment
  RSA737245  Calandrinia breweri R. E. Riefner 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. 496 Comment
  RSA0037245  Calandrinia caulescens var. menziesii Keith E. Hoffmaster 1932-2-28 493 Orange [Marked as Solano County on label.] Santa Ana Mts. Comment
  CAS-BOT-BC438319  Calandrinia ciliata C. L. Hitchcock 1966-3-15 24136 Orange 1/2 mile e. of Brea Comment
  RSA734813  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34576 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
  UCR222642  Calandrinia ciliata D. E. Bramlet 2008-4-28 4245 Orange Peninsular Range; Santa Ana Mtns. Foothills, east fork of upper Weir Canyon, 1.2 km east of the main canyon and 91 m west of the upper boundary of Gypsum Canyon 409 Comment
  UCR223960  Calandrinia ciliata Fred M. Roberts 2008-4-9 6860 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
  RSA562810  Callicore rosea Steve Boyd, Timothy S. Ross 1992-5-20 7482 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
  RSA723962  Callistemon viminalis R. E. Riefner Jr. 2006-11-12 06 -559 Orange City of Newport Beach, Irvine Coast Trail at San Diego Creek, near SR-73 crossing, S of Jamboree Rd. 3 Comment
  RSA665954  Callitriche marginata Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5425 Orange Rancho Mission Viejo: South of San Juan Creek, 0.6km WNW Median Rancho Survey Marker. PCR Vernal Pool 2. 183 Comment
  RSA610237  Callitriche marginata Fred M. Roberts, Tony Bomkamp, R. E. Riefner 1997-2-27 4979 Orange Costa Mesa: Fairview Park, 0.1 km W Canyon School. 24 Comment
  RSA0065925  Calochortus catalinae Allison D. Rudalevige 2015-3-25 ADR 11 Orange City of Laguna Beach, between Hobo Canyon and Aliso Creek. 199 Comment
  RSA582916  Calochortus catalinae Mark Elvin, Helen Kamp 1995-5-5 11 Orange Santa Ana Mountains: Caspers Regional Park; base of ridge N of Bell Creek. 207 Comment
  RSA590955  Calochortus catalinae Fred M. Roberts, Cathy Novak, Dave Bontrager 1991-4-18 4770 Orange Santa Ana Mountains: c. 0.7 kilometers N junction Santiago Canyon Road and Live Oak Canyon Road, 7.7 kilomers WSW Modjeska Peak. 411 Comment
  RSA747612  Calochortus catalinae Fred M. Roberts 2000-4-27 5302 Orange Lomas de Santiago: Lomas Ridge, Agua Chinon Wash, 1.5 km S Bolero Spr. and 2.1 km WSW Bolero Lookout. 281 Comment
  UCR191352  Calochortus catalinae A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34639 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
  UCR31355  Calochortus catalinae L. F. LaPre 1983-4-12 s.n. Orange Peralta Hills c. 0.5 mi south of Anaheim Hills residential development. Comment
  POM17811  Calochortus invenustus Philip A. Munz, D. D. Keck 1923-6-14 7093 Orange Santiago peak, Santa Ana Mountains. 1616 Comment
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Apr 1 2013
  RSA649686  Calochortus plummerae R. E. Riefner 2000-7-8 20 -625 Orange NCCP North Ranch Policy Plan Area. On ridgeline overlooking upper W fork of Fremont Canyon; located E of Main Divide Road and SE from Windy Ridge cypress forest. 438 Comment
  CAS-BOT-BC492707  Calochortus splendens A. M. White 1974-6-1 1429 Orange 20 Miles E of Santa Ana, N of Silverado Canyon 822 Comment
  POM6366  Calochortus splendens Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2625 Orange Santa Ana River Canyon. Comment
  RSA16422  Calochortus splendens Percy C. Everett 1935-5-19 6874 Orange Santa Ana Mountains, Baker Canyon, West Ladd Truck trail. 305 Comment
  RSA542333  Calochortus splendens Fred M. Roberts 1988-4-10 3919 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  RSA550601  Calochortus splendens Fred M. Roberts 1989-4-25 4312 Orange Santa Ana Mountains: East Rim of Blind Canyon 8.5 kilometers SW Sierra Peak, ca. 1.4 kilometer N Irvine Lake spilway. 366 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
  CAS-BOT-BC492699  Calochortus splendens P. C. Everett 1935-5-19 6874 Orange Santa Ana Mts., Baker Canyon, West Ladd Trunk Trail 304 Comment
  RSA132250  Calochortus splendens Gale Sphon 1959-5-2 325 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest. Comment
  RSA649066  Calochortus weedii var. intermedius D. E. Bramlet 2000-6-27 3064 Orange Fremont Canyon ridge road at crossing of Edison transmissionlines. NE of the old mine site, S of junction with Blind Canyon access road. 482 Comment
  RSA649683  Calochortus weedii var. intermedius R. E. Riefner 2000-6-26 20 -580 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N and W of Black Star Canyon Road at powerline tower. Comment
  RSA690975  Calochortus weedii var. intermedius Scott D. White, Michael Honer 2003-5-29 9428 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
  SD112776  Calochortus weedii var. intermedius Darley F. Howe 1967-5-30 4361 Orange Near mouth of Aliso Canyon, dry hillside. Comment
  RSA741483  Calochortus weedii var. weedii R. E. Riefner 2008-6-5 8 -145 Orange Near City of Orange, W side of Hicks Haul Rd., Rattlesnake Cyn., SW of the asphalt plant, Irvine Ranch Reserve, Management Area 6. Comment
  RSA542424  Calycadenia tenella Fred M. Roberts 1988-5-13 3967 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  RSA733841  Calycadenia tenella A. C. Sanders 2008-4-29 35130 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  RSA747706  Calycadenia tenella Fred M. Roberts 2008-5-16 6984 Orange Dana Point: Dana Point Hradland, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  POM256956  Calycadenia tenella W. Pequegnat 1940-6-12 s.n. Orange Collected on Los Pinos Portrero, 2 mi. S of Los Pinos Pk 945 Comment
  RSA92227  Calycadenia tenella F. W. Peirson 1922-5-18 1353 Orange Santa Ana River 122 Comment
  JEPS52574  Calyptridium monandrum Alice King April 1908 Orange Santa Ana River Comment
  UCR220027  Calystegia macrostegia 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
  UCR266301  Calystegia macrostegia D. E. Bramlet 2008-3-26 4121 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
  POM65980  Calystegia macrostegia subsp. arida L. R. Abrams 1901-6-14 1800 Orange Trabuco Canyon Comment
  SEINET7072487  Calystegia macrostegia subsp. cyclostegia A. G. Vestal 1963-3-27 s.n. Orange About 1.8 miles up Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  LA50071  Calystegia macrostegia subsp. tenuifolia W. Pequegnat; 1937-8-31 99 Orange Santa Ana Mts 761 Comment
  RSA394832A  Calystegia soldanella M. B. Dunkle 1935-2-10 4326 Orange San Orenfro 3 Comment
  RSA159495  Camissonia bistorta Thomas Craig 1928-3-31 778 Orange Santa Ana Mountains, Silverado Canyon. Comment
  RSA466969  Camissonia bistorta M. B. Dunkle 1933-4-9 3280 Orange Dana Point. Comment
  UCR190999  Camissonia bistorta A. C. Sanders, Fred M. Roberts 2008-4-22 35044 Orange Peninsular Range; Santa Ana Mtns., 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 457 Comment
  UCR191473  Camissonia bistorta A. C. Sanders, Fred M. Roberts 2008-4-8 34740 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA25949  Camissonia californica E. Johnson 1941-5-1 s.n. Orange River bottom, Rancho Santa Ana Comment
  UCR42387  Camissonia cheiranthifolia A. C. Sanders 1986-5-31 6523 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  NY679581  Camissonia cheiranthifolia subsp. suffruticosa L. S. Rose 1949-4-14 49049 Orange Sunset Beach. Comment
  NY679591  Camissonia cheiranthifolia subsp. suffruticosa L. Abrams 1917-6-23 6576 Orange Balboa. Comment
  RSA0073650  Camissonia cheiranthifolia subsp. suffruticosa Fred M. Roberts 2010-3-12 7181 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
  RSA698255  Camissonia cheiranthifolia subsp. suffruticosa Minor Warne 1934-04 s.n. Orange Sand hills along the coast. Comment
  RSA539380  Camissonia hirtella Fred M. Roberts, Carol A. Roberts 1988-6-2 4044 Orange Santa Ana Mtns.: Maple Springs Truck Trail, 8.7 km above Silverado Gate, 2.4 km N Modjeska Pk. 352 Comment
  RSA598919  Camissonia ignota Scott D. White 1997-3-28 4847 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA5804  Camissonia micrantha Carl B. Wolf 1932-6-28 3778 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA509  Camissonia strigulosa J. T. Howell 1928-4-7 900 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR237914  Camissoniopsis bistorta Dick Newell, Don Millar 2012-6-5 270 Orange Peninsular Range; Santa Ana Mtns., Loma Ridge East, 0.35 mi. due east of Hicks Haul Rd. 411 Comment
  CAS-BOT-BC160453  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange Sunset Beach Comment
  CAS-BOT-BC37127  Capsella bursa-pastoris Ira L. Wiggins 1966-2-25 20476 Orange Firestone Boy Scout Reservation, east of Brea. Comment
  IRVC1059  Capsella bursa-pastoris I. L. Wiggins 1966-2-25 20445 Orange Yorba Linda Blvd. near Associated Ave.; roadside near orange grove, full sun. Fullerton Comment
  IRVC25563  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
  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
  IRVC9150  Capsella bursa-pastoris B. Gittins 1963-3-22 61 Orange Orange Coast College Campus. Costa Mesa Comment
  CAS-BOT-BC37592  Cardamine californica C. B. Wolf 1931-1-30 1826 Orange Santa Ana Mountains. Claymine Canyon. 304 Comment
  UCR5198  Cardamine californica O. F. Clarke 1971-1-9 s.n. Orange Santa Ana Mtns, Cleveland National Forest. Harding Canyon (a tributary of Modjeska Canyon) 2 mi NE of Tucker Sanctuary Comment
  RSA2106  Cardamine californica var. integrifolia C. B. Wolf 1931-1-30 1826 Orange Claymine Canyon, Santa Ana Mts. 305 Comment
  RSA369328  Cardamine californica var. integrifolia Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  UCR237834  Cardamine flexuosa Mark A. Elvin 2003-2-2 2297 Orange South Coast, UC Irvine Arboretum, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 17 Comment
  JEPS51520  Cardionema ramosissimum Lawrence M. Booth 1932-5-24 1093 Orange Newport Bay Comment
  RSA732227  Carduus pycnocephalus A. C. Sanders, Fred M. Roberts 2008-4-22 35019 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  UCR137449  Carduus pycnocephalus Scott D. White, Brian Leatherman 1997-6-12 5330 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  RSA647884  Carduus tenuiflorus Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 42 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 243 Comment
  CAS-BOT-BC118482  Carex praegracilis Helen D. Geis 1902-1-1 505 Orange Unspecified Comment
  RSA542340  Carex praegracilis Fred M. Roberts, K. Keane 1988-5-25 3983 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark. 82 Comment
  CAS-BOT-BC118492  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana, Peat lands Comment
  RSA797395  Carex spissa Keith E. Hoffmaster 1934-7-15 s.n. Orange Santa Ana Mts (Modjeska) Comment
  SEINET10495943  Carissa macrocarpa Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-7-21 Dziekanowski 2417 Orange Collected around the condominium-Pacific Island Estates in Laguna Beach. Comment
  CDA25905  Carpobrotus chilensis Mark A. Elvin, D. G. Kelch 2006-12-9 5292 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  SEINET10447228  Carpobrotus chilensis Charlene A. Bennett 1976-7-22 Bennett 444 Orange Cultivated and native plants collected around the San Clemente Beach area. 3 Comment
  RSA113267  Carpobrotus edulis E. K. Balls 1955-4-4 20421 Orange Coastal Strand. W end of Newport Beach. Hwy 101. 3 Comment
  UCR11220  Carthamus baeticus D. O. Clark 1969-7-14 s.n. Orange 2 mi NE of Brea Comment
  JEPS89156  Castilleja affinis Rimo Bacigalupi, and L. Heckard 1962-3-25 8383 Orange 3.5 mi e El Modeno (near Handy Creek, on road to Irvine County Park) Comment
  RSA734649  Castilleja affinis A. C. Sanders, Fred M. Roberts 2008-3-25 34572 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
  UC1012124  Castilleja affinis subsp. affinis F. W. Pennell and Carl Epling 1940-4-21 25149 Orange 5 mi e San Luis Capistrano (Route 74) 60 Comment
  UC1424837  Castilleja affinis subsp. affinis C. W. Tilforth and Dorothy Tilforth 1977-3-6 1259 Orange ca 10 mi w Corona (large wash w of Weir Canyon, s side of Santa Ana River) 152 Comment
  UCSB12538  Castilleja affinis subsp. affinis Whittington, M. 1962-4-20 Orange Modjeska grade road; between Modjeska and Trabuco Canyon Comment
  UC407316  Castilleja densiflora subsp. gracilis LeRoy Abrams 1903-4-18 3266 Orange near Capistrano Comment
  UC673435  Castilleja exserta subsp. exserta Herbert L. Mason 1926-4-25 2935 Orange 5 mi s Laguna Comment
  RSA699995  Castilleja foliolosa R. H. McArthur 1934-4-7 s.n. Orange Ladd Canyon. Comment
  UCR175052  Castilleja foliolosa Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  UC537012  Castilleja minor subsp. spiralis Lawrence M. Booth 1932-6-28 1217 Orange Bolsas Marsh Comment
  RSA0045577  Castilleja parviflora Minor Warne 1934-03 s.n. Orange Gypsum Canyon. Comment
  UCD114545  Caulanthus heterophyllus D. E. Bramlet 2008-3-31 4134 Orange Santa Ana Mountains. 305 m E of Upper Hicks Haul Road, in Trib to Limestone Cyn., 1 km S of Santiago Cyn. Road. 311 Comment
  UCR103216  Caulanthus heterophyllus Scott D. White 1997-2-19 4695 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 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
  RSA0054976  Ceanothus Keith E. Hoffmaster 1934-7-15 108 Orange Santa Ana mts. (Santiago can). Comment
  CAS-BOT-BC48491  Ceanothus crassifolius T. Cass 1975-4-11 74 -671 Orange Southside Baker Canyon at Santa Ana Nat. forest boundary. 396 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
  RSA797906  Ceanothus integerrimus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49816 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UCR131677  Ceanothus integerrimus C. B. Wolf 1941-8-15 11155 Orange Santa Ana Mtns., Santiago Peak, north side 0.5 mi. from summit [near Riverside county line] 1677 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
  RSA734968  Ceanothus megacarpus A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35301 Orange Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA0054960  Ceanothus oliganthus Keith E. Hoffmaster 1936-4-5 707 Orange Black Star can., Santa Ana Mts. Comment
  UCSB31584  Ceanothus oliganthus var. oliganthus Proctor, Donald 1962-3-18 Orange Silverado canyon, Santa Ana Mts. 944 Comment
  OBI10429  Ceanothus oliganthus var. orcuttii Carl B. Wolf 1935-6-19 7234 Orange Santa Ana Mts, Main Divide Motorway jctn with Trabuco Cyn truck trl Comment
  UCD169753  Ceanothus papillosus var. roweanus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  CAS-BOT-BC53007  Ceanothus spinosus Carl B. Wolf 1936-6-17 7950 Orange Santa Ana Mts., along Ortega Highway, San Juan Canyon, 2/10 mi. W. of Riverside Co. line 274 Comment
  OBI6051  Ceanothus spinosus Carl B. Wolf 1941-8-15 11151 Orange Santa Ana Mts, W slope Santiago Truck trl to Santiago Pk 1.2 mi above F.S. Gate 610 Comment
  UCR246516  Ceanothus spinosus Fred M. Roberts 2013-5-30 7776 Orange Lomas de Santiago, Santiago Creek Wash, at Santiago Canyon Road bridge, south side, 0.3 km west of the junction of Silverado and Santiago Canyon Roads 299 Comment
  PASA2518  Ceanothus tomentosus Frank W. Peirson 1922-5-19 Orange Small canyon heading eastward from the Santa Ana Canyon at 400 ft. Comment
  RSA3170  Ceanothus tomentosus subsp. olivaceus Carl B. Wolf 1932-3-8 2693 Orange Santiago Creek, 1 mil. E. Villa Park, W. base Santa Ana Mts. 152 Comment
  IRVC14319  Centaurea melitensis L. T. McHargue 1970-6-22 Orange UCI campus, Irvine 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
Read comments
Apr 29 2008
  UCR100448  Centaurea melitensis B. G. Pitzer 1996-4-30 2783 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR140799  Centaurea melitensis Robin G. Marushia 2004-5-4 013 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
  UCR239619  Centaurea melitensis Fred M. Roberts 2012-4-24 7518 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-BC288839  Centromadia parryi subsp. australis Adrian Wolf 1998-7-1 410 Orange South Coast: Peters Canyon Channel, E of channel near Harvard Ballfield, between Harvard Ave and creek, S of Warner Ave to Barranca 15 Comment
  CAS-BOT-BC288841  Centromadia parryi subsp. australis Peter H. Raven 1957-9-28 11376 Orange N limits of Surfside Comment
  JEPS20077  Centromadia parryi subsp. australis Peter H. Raven 1957-9-28 11376 Orange N limits of Surfside 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
  SBBG36843  Centromadia parryi subsp. australis D. D. Keck 1933-9-29 2537 Orange Seal Beach; ISOTYPE Comment
  JEPS3954  Cephalaria syriaca M. Alice King 1908-4-15 Orange Santa Ana, Walnut Grove Walnut Grove; Santa Ana, Walnut Grove Comment
  RSA680733  Cerastium glomeratum Scott D. White 2003-3-21 8811 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA698630  Cercocarpus betuloides Dorothy Sammis s.n. Orange Silverado Canyon Comment
  RSA739229  Cercocarpus betuloides Keith E. Hoffmaster 1932-4-17 502 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  UCR221892  Cercocarpus betuloides Dick Newell, Don Millar 2010-10-15 40 Orange South Coast, San Joaquin Hills, Laguna Wilderness parkm on the Willow Trail 220 Comment
  POM49175  Chaenactis artemisiifolia L. R. Abrams 1901-6-15 1808 Orange Trabuco Canyon Comment
  RSA16347  Chaenactis artemisiifolia Percy C. Everett 1935-6-18 7186 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  UCR274177  Chaenactis artemisiifolia Dick Newell, Don Millar 2016-5-24 426 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Merkel Spur Trail at Limestone Ridge Road, 0.13 mile south of Cactus Canyon Road 417 Comment
  SD144055  Chaenactis glabriuscula Scott D. White 1997-3-28 4852 Orange Above Modjeska Canyon: Proposed water tank site. 424 Comment
  RSA695673  Chaenactis glabriuscula L. C. Hull 1934-4-29 s.n Orange Trabuco Canyon Comment
  RSA731964  Chaenactis glabriuscula A. Sanders, Fred M. Roberts 2008-4-22 34989 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mi. NE of Rattlesnake Reservoir. 213 Comment
  POM122612  Chaenactis glabriuscula var. glabriuscula Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canyon. Comment
  POM351782  Chaenactis glabriuscula var. glabriuscula F. R. Fosberg 1931-6-21 5099 Orange Silverado Canyon. Santa Anita Mts. Comment
  SFV17359  Chaenactis glabriuscula var. glabriuscula J. N. Hogue, J. D. Dilley, D. L. Bishop 1998-4-9 103 .1 Orange Santa Ana Mountains San Juan Canyon at San Juan Hot Springs. Just inside western boundary of Cleveland National Forest. 213 Comment
  UCR209659  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts 2008-5-16 6975 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, along north slopes above Dana Strand Beach, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 45 Comment
  RSA588785  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts, D. Bontrager 1990-4-18 4577 Orange Rancho Mission Viejo: Chiquita Rdge, west of Canada Chiquita, 2.0 km N Median Rancho Survey Marker 152 Comment
  HSC25233  Chamaesyce albomarginata R. W. Spjut 1972-2-22 2231 Orange Santa Ana Mtns., Cleveland National Forest, along Hwy. 74 305 Comment
  RSA734739  Chamaesyce albomarginata L. C. Wheeler 1946-8-8 6225 Orange Imperial Highway 1/4 mi. west of Caroline Ave, 2 mi. east southeast of Brea. Comment
  RSA734740  Chamaesyce albomarginata L. C. Wheeler 1946-8-8 6225 Orange Imperial Highway 1/4 mi. west of Caroline Ave, 2 mi. east southeast of Brea. Comment
  CDA28633  Chamaesyce maculata Mark A. Elvin, D. G. Kelch 2006-12-9 5301 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA719411  Chamaesyce maculata Fred M. Roberts, Robert L. Allen 2006-10-8 6424 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
  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
  SEINET10793742 Image available Cheilanthes clevelandii Michael D. Windham 1998-3-31 Windham 98 -088 Orange Along tributary of Hot Spring Canyon in the Santa Ana Mountains, ca. 3.00 km SE of Crow Spring. Cleveland National Forest. Canada Gobernadora Quadrangle (7.5 min.). UTM-3718150 m.N by 453065 m.E (Zone 11). 320 Comment
  RSA5936  Chenopodium album C. B. Wolf 1932-7-7 3838 Orange Bryant Ranch, along drainage ditch on Bixby Ave.; 100 ft. W. of Hansen Rd.; 100 ft W of corner of NE 1/4 9 Comment
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Apr 9 2014
  CDA25888  Chenopodium ambrosioides Mark A. Elvin, B. S. Nerhus 2006-11-4 5246 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  POM678  Chenopodium ambrosioides D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA0027426  Chenopodium ambrosioides Fred M. Roberts 2013-7-18 7668 Orange San Joaquin Hills: Newport Beach, Buck Gully, west end, just east of north terminus of Poppy Street and 2.2 km WNW summit of Pelican Hill. 39 Comment
  RSA731952  Chenopodium ambrosioides Fred M. Roberts 2007-12-12 6706 Orange Santa Ana Canyon: Santa Ana River, south of Green River Golf course on south side of river, 0.4km E Coal Cyn. Rd. and 0.7km W Riverside Co. line. 129 Comment
  POM201674  Chenopodium ambrosioides L. M. Booth 830 Orange Santa Ana Canyon. Comment
  RSA423411  Chenopodium ambrosioides Albert J. Perkins 1923-6-17 s.n. Orange Sycamore St., Santa Ana. Comment
  POM18120  Chenopodium berlandieri var. sinuatum P. A. Munz 1923-9-7 7746 Orange Santiago Peak. 1723 Comment
  RSA791869  Chenopodium berlandieri var. sinuatum R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49647 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA687520  Chenopodium californicum Fred M. Roberts, D. E. Bramlet 2003-4-10 5648 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
  RSA731982  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-4-8 34774 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  UC494725  Chenopodium californicum Philip A. Munz 1932-3-29 12186 Orange along sea-bluffs Costa Mesa Comment
  SBBG119932  Chenopodium macrospermum A. C. Sanders with M. A. Elvin 2003-11-9 27366 Orange San Joaquin Marsh adjacent to UC Irvine Arboretum, UC Irvine campus near intersection of Jamboree Blvd and Campus Drive 2 Comment
  IRVC387  Chenopodium murale B. Mawdsley 1965-3-30 Orange east bluff at Mar Vista. Newport Beach Comment
  OBI7967  Chenopodium murale Kurt R. Neisess 1975-12-19 s.n. Orange In Yorba Linda 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
  UCR190993  Chenopodium murale A. C. Sanders, Fred M. Roberts 2008-4-22 35007 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  UCR209345  Chenopodium murale Fred M. Roberts 2008-4-15 6901 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, east ridge, Conservation Trail, 1.6 km east-southeast of Rattlesnake Reservoir Dam and 2.7 km west-southwest of Bee Peak, Irvine Ranch Conservancy 172 Comment
  RSA5575  Chenopodium murale C. B. Wolf 1932-6-28 3767 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  CLARK-A1528-976  Chenopodium rubrum Patricia A. Andrews 1975-6-26 5926 Orange Capistrano Bay Beach 9 Comment
  CDA32185  Chenopodium strictum var. glaucophyllum T. McCrainie, Mark A. Elvin 2006-9-23 3 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  RSA0020609  Chloropyron maritimum subsp. maritimum Naomi Fraga, Joella Simons-Adkins, Taylor Parker 2012-10-10 4143 Orange Newport Aquatic Center 0 Comment
  UC1618038  Chorizanthe Donald G. Nelson 1935-4-14 292 Orange near Pacific Electric Railway Station Newport Beach Comment
  POM50446  Chorizanthe parryi var. fernandina Helen D. Geis 1902-1 541 Orange Near Santa Ana Comment
  CAS-BOT-BC255246  Chorizanthe staticoides Herbert L. Mason 1926-4-25 2913 Orange 5 miles below Laguna Comment
  CAS-BOT-BC255248  Chorizanthe staticoides Clare B. Hardham 1962-4-5 8954 Orange Hills above San Clemente Comment
  POM201761  Chorizanthe staticoides L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  POM50441  Chorizanthe staticoides L. R. Abrams 1901-06 1807 Orange Mt. Santiago 915 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
  RSA0015956  Chorizanthe staticoides subsp. chrysacantha Fred M. Roberts 2012-5-10 7566 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
  RSA0004910  Chorizanthe staticoides var. elata P. A. Munz 1923-6-14 7085 Orange Glen dry trail to Santiago Peak , Santa Ana Mountains, dry ridge in chaparral belt. 1463 Comment
  CAS-BOT-BC502067  Chrysanthemoides monilifera R. E. Riefner, Jr. 2011-11-26 11 -162 Orange City of Laguna Beach, W side of Paific Coast Hwy, N bank of Aliso Creek next to residential garden 5 Comment
  UCR154287  Chrysanthemum coronarium Mark A. Elvin 2004-5-2 3407 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCSB52870  Cirsium occidentale var. californicum Roberts, Fred; Allen, R. 1983-3-27 Orange Dana Point Headlands; north of Dana Strand Rd., 0.5 km. W Dana Point Harbor; 0.7 km. SSW Richard Henry Dana School 79 Comment
  IRVC617  Cirsium occidentale var. occidentale C. Orr 1965-3-27 Orange Trabuco Road, 3mi E El Toro Marine Base. El Toro Comment
  RSA68335  Cirsium occidentale var. occidentale G. R. Campbell 1951-5-30 16154 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest. 152 Comment
  IRVC22223  Cirsium vulgare H. Camp 1985-8-15 6 Orange Bell Canyon, 2.1km NNW Visitor Center, Casper's Regional Park 126 Comment
  RSA752816  Cirsium vulgare A. C. Sanders, Fred M. Roberts 2008-8-7 36000 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UCR26961  Clarkia deflexa E. W. Lathrop 1966-5-13 6293 Orange Santa Ana Mountains, 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  RSA493805  Clarkia dudleyana Jeri Hirshberg 1988-6-2 s.n. Orange Upper Gypsum Canyon. 274 Comment
  SEINET7067524  Clarkia purpurea subsp. quadrivulnera A. G. Vestal 1947-6-12 s.n. Orange Grade to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 445302mE, 3724321mN. Comment
  UCSB48212  Clarkia purpurea subsp. quadrivulnera Roberts, Fred 1981-5-3 Orange Santa Ana Mtns; Hot Springs Cyn; 0.8 km by road N of San Juan Guard Station 256 Comment
  CAS-BOT-BC172351  Clarkia purpurea subsp. viminea Munz; Street; Williams 1919-5-3 2669 Orange Santa Ana River Canyon Comment
  RSA0059921  Clarkia purpurea subsp. viminea L. R. Abrams 1910-6-15 1796 Orange Santiago Peak trail. Comment
  CAS-BOT-BC233841  Claytonia parviflora subsp. parviflora Helen D. Geis 1904-4-1 758 Orange Silverado Canyon, Santa Ana Mts. Comment
  HSC17702  Claytonia perfoliata subsp. mexicana S. M. Clapp 1966-4-10 35 Orange 10 mi. into Silverado Canyon 183 Comment
  RSA610242  Claytonia perfoliata subsp. mexicana Fred M. Roberts, Tony Bomkamp 1997-3-13 4985 Orange RANCHO MISSION VIEJO: Christianitos Canyon near confluence of Gabino Canyon, 5.1km NE Clemente Survey Mark. 85 Comment
  UC1136736  Claytonia perfoliata subsp. mexicana A. Lewis 1934-4-1 378 Orange Coal Mine; Corona Quad. 243 Comment
  JEPS43343  Claytonia perfoliata subsp. perfoliata Alice King Apr 1908 Orange canyon above Orange County Park (Santa Ana); Santa Ana Comment
  POM305798  Clematis lasiantha Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1061 Orange Capistrano Canyon. Comment
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Dec 17 2011
  RSA663157  Clematis lasiantha R. E. Riefner 2000-6-1 20 -455 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  RSA0061168  Clematis ligusticifolia Robt. Allen 2007-8-11 s.n. Orange Santa Ana Mountains region: Silverado Canyon, Maple Springs Road. 791 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
  RSA449086  Cneoridium dumosum Albert J. Perkins 1921-3-15 s.n. Orange Laguna Heights, hill S.W. of oil well. Comment
  RSA449088  Cneoridium dumosum Unspecified s.n. Orange Laguna Beach. Comment
  RSA449089  Cneoridium dumosum Thekla Mohr 1517 Orange Laguna. 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
  RSA34587  Collinsia heterophylla N. C. Cooper 1944-6-4 1361 Orange San Juan Canyon, lower camp ground. 457 Comment
  UCR241075  Collinsia heterophylla Dick Newell, Don Millar 2013-4-30 327 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago; lower Hangman's Tree Canyon, 0.1 mi. west of Santiago Canyon Rd. 368 Comment
  RSA0018459  Collinsia heterophylla J. D. Olmsted 1959-5-1 532 Orange 100 yrds NW of Rattlesnake Rock. 0.75 mi N of Hidden Ranch in Black Star Canyon. 4-5 mi E of Irvine Lake Reservoir. Drainage area to Santa Ana River. 732 Comment
  RSA408307  Collinsia heterophylla Anstruther Davidson 1920-6-1 3371 Orange Languna Beach Comment
  SD144492  Conium maculatum B. Pitzer 1997-4-15 3130 Orange Crystal Cove State Park, N of the N end of the City of Laguna Beach. Along Moro Cyn Trail, from beginning to a point ca. 1.75 mi up the cyn. 49 Comment
  RSA521  Conium maculatum J. T. Howell 1927-7-19 447 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR97074  Convolvulus arvensis Scott D. White 1993-4-28 1281 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  RSA0127343  Convolvulus simulans Fred M. Roberts 2016-4-29 8046 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-BC285928  Conyza bonariensis Ira L. Wiggins 1965-11-5 20321 Orange Near corner of Dowling St. and Crowther Ave., Placentia Comment
  CLARK-A1528-918  Conyza canadensis Patricia A. Andrews 1975-6-26 5908 Orange Capistrano Bay Beach 9 Comment
  RSA749046  Conyza canadensis A. C. Sanders, Fred M. Roberts 2008-8-7 36008 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
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Dec 21 2010
  CAS-BOT-BC286162  Conyza canadensis Ira L. Wiggins 1965-11-6 20341 Orange Kraemer Oil Estates, near Well No. 14, near end of county road leading to Rancho Santa Ana (extension of Orangethorpe Blvd.) Comment
  RSA743520  Conyza coulteri Fred M. Roberts, Carol A. Roberts 2008-9-28 7111 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  RSA725965  Conyza floribunda R. E. Riefner 2003-12-13 03 -503 Orange South Coast: Los Alamitos, San Gabriel River, vicinity of Chestnut St. and Cerritos Ave. 11 Comment
  JEPS6032  Cordylanthus maritimus subsp. maritimus L. M. Booth 1932-7-1 1233 Orange Anaheim Creek Comment
  SBBG68641  Cordylanthus maritimus subsp. maritimus M. N. Ackley -May-1929 Orange Sunset Beach Comment
  UCR242956  Cordylanthus maritimus var. maritimus D. E. Bramlet 1983-7-3 s.n. Orange South Coast, Newport Back Bay, c. 200 yds. from the junction of San Joaquin Hills Rd. and Back Bay Dr., 5 ft. from edge of Back Bay Dr. 1 Comment
  UCR193374  Cordylanthus rigidus A. C. Sanders, Joshua M. Brokaw 2008-5-28 35428 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
  SEINET7067529  Cordylanthus rigidus subsp. rigidus A. G. Vestal 1947-6-12 s.n. Orange Trabuco Creek Road at the junction with Holy Jim Canyon Road. Top of the Grade Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 452210mE, 3726363mN. Comment
  UCSB48241  Cordylanthus rigidus subsp. setiger Roberts, Fred 1981-7-21 Orange Santa Ana Mts.: 0.8km SE Blue Jay Camp Ground 934 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
  UCR102007  Coronopus didymus B. G. Pitzer 1997-3-25 3032 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  UCR68986  Cortaderia selloana A. C. Sanders 1990-10-6 10196 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  RSA679093  Cosmos bipinnatus Fred M. Roberts 2003-7-24 5966 Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  UCR193758  Cotula australis A. C. Sanders, Fred M. Roberts 2008-7-3 35712 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  CAS-BOT-BC287222  Cotula australis Ira L. Wiggins 1966-3-5 20504 Orange Along Highway S-18, about 4.5 miles E of Laguna Beach Comment
  CDA20829  Cotula coronopifolia P. Akers 2006-3-25 PA 3 -06 Orange Peninsular Ranges; Yorba Linda, N edge of Santa Ana River. S of La Palma Dr, 0.5-0.8 mi E of Yorba Linda Dr. 121 Comment
  IRVC16765  Cotula coronopifolia J. B. Anderson 1966-4-16 582 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  CAS-BOT-BC291358  Cotula coronopifolia C. W. Tilforth; John Dourley 1969-4-22 184 Orange San Clemente Comment
  RSA697177  Cotyledon laxa Kenneth Beard 1934-05 s.n. Orange Ladd Canyon. Comment
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Dec 20 2019
  IRVC25399  Crassula connata Fred M. Roberts 1987-4-3 3338 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  UCR215312  Crassula connata Fred M. Roberts 2008-3-27 6803 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near NE gate, 0.5 km west of Marine Institute, Dana Point Harbor 75 Comment
  CDA25356  Crassula connata Andreas 1944-4-14 Orange Santa Ana. 0 Comment
  RSA234516  Cressa truxillensis James Henrickson 1970-7-25 5055 Orange 2 miles NE of Huntington Beach near north end of Bolsa Chica Salt Marsh. 0 Comment
  RSA254940  Cressa truxillensis C. W. Tilforth 1975-9-6 1043 Orange Northeast shoreline of Upper Bay, Newport Beach. Comment
  RSA71016  Cressa truxillensis F. W. Peirson 1924-5-31 4647 Orange Laguna Canyon, near Laguna Beach. 106 Comment
  IRVC16606  Cressa truxillensis Gordon A. Marsh 1970-7-17 Orange Santa Ana River, south bank near Coast Hwy. Newport Beach Comment
  RSA0009408  Cressa truxillensis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA394757  Cressa truxillensis Albert J. Perkins 1917-11-3 s.n. Orange Santa Ana. Comment
  RSA5240  Cressa truxillensis C. B. Wolf 1932-9-13 4028 Orange Edge of field So. of Bryant Ave., 1/2 mi. W of Los Alamitos Blvd. 8 Comment
  SD247629  Crocanthemum aldersonii R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49679 Orange Northern Santa Ana Mountains; Coal Canyon [NE of Sierra Peak] 456 Comment
  RSA4829  Croton californicus James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Station #1. Plant #3. Comment
  UCR193030  Croton californicus A. C. Sanders, Fred M. Roberts 2008-6-17 35518 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR220965  Croton californicus Dick Newell, Don Millar 2010-4-27 027 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Ridge Rd. at junction of Markel Spur Rd., overlooking The Sinks 427 Comment
  UCR46565  Croton californicus B. G. Pitzer, D. C. Hawks 1986-10-21 0352 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
  SEINET9253096 Image available Croton californicus Czarnecki 1966-4-1 58 Orange Near Rancho Santa Ana at end of Orangethorpe Ave. Comment
  RSA702203  Croton setiger Fred M. Roberts, David E. Bramlet 2003-6-20 5922 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  UCR131872  Croton setiger J. Mallory, V. McCoy 1995-7-3 6454- 71 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  UCR228773  Croton setiger Dick Newell, Don Millar 2011-5-24 166 Orange Peninsular Range; Santa Ana Mtns., above Outdoor Education Center on MWD service road, 1.6 miles NW (311 deg. ) of Irvine Lake dam 244 Comment
  RSA0029036  Cryptantha Keith E. Hoffmaster 1934-4-8 137 Orange Santa Ana Mts. Comment
  SEINET6971880  Cryptantha W. P. Vestal, A. G. Vestal 1955-3-24 3451 D Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  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
  RSA6632  Cryptantha clevelandii P. A. Munz, L. T. Street, G. Williams 1919-5-3 2619 Orange Santa Ana River Canyon. Comment
  RSA0013857  Cryptantha intermedia Fred M. Roberts 2012-5-10 7563 Orange San Joaquin Hills: Buck Gully, S Fork, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive. 183 Comment
  RSA542657  Cryptantha intermedia Fred M. Roberts 1988-4-10 3902 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  RSA678721  Cryptantha intermedia Fred M. Roberts, Robert Allen, Carol Roberts 2003-5-11 s.n. Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  RSA732088  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-3-25 34546 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCD119839  Cryptantha intermedia Beecher Crampton 1967-5-23 7957 Orange 4 miles east of Irvine UC - South Coast Field Station. Comment
  UCR203980  Cryptantha intermedia Fred M. Roberts 2008-3-12 6716 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
  RSA0127600  Cryptantha microstachys Fred M. Roberts 2016-3-25 8030 Orange San Joaquin Hills: Bommer Canyon, west slope near south end fo Nature Loop Trail, 0.1 km NW Cattle Camp and 1.6 km NE summit of Signal Peak. 146 Comment
  IRVC19956  Cryptantha microstachys Gordon A. Marsh 1983-4-16 Orange Sycamore Hills, central sector, lower margin, Laguna Beach Comment
  IRVC17025  Cryptantha muricata var. muricata C. Weir 1965-4-24 Orange Newport Back Bay. Newport Beach Comment
  IRVC20157  Cryptantha muricata var. muricata R. L. Allen 1977-4-16 Orange 0.7km N La Novia bridge; west of water path. San Juan Capistrano Comment
  POM178580  Cryptantha racemosa Marcus E. Jones 1930-3-3 s.n. Orange Santa Ana Mountains. Comment
  RSA39346  Cucurbita digitata E. L. Paddock 1948-6-16 12734 Orange N of Sante Fe Railroad Tracks opposite Yorba Cemetery Comment
  IRVC18321  Cucurbita foetidissima J. W. Johnson 1976-8-2 Orange Upper [Newport] Bay. Newport Beach Comment
  JEPS46507  Cucurbita foetidissima L. M. Booth 1933-10-18 Orange Newport Comment
  CAS-BOT-BC80576  Cupressus forbesii C. B. Wolf 1935-1-2 6278 Orange Santa Ana Mts., slopes of Sierra Peak, W. of [Claymine] Clay Mine Canyon along road to peak 670 Comment
  RSA14452  Cupressus forbesii Philip A. Munz, I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. Santa Ana River Canyon. Alluvial soil along canyon, 2d large canyon south of Orange County line. Comment
  RSA648649  Cupressus forbesii Richard E. Riefner, Adrian Wolf 2000-6-1 20 -451 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 518 Comment
  RSA7200  Cupressus forbesii B. D. Stark 1933-3-17 4532 -D Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  RSA7201  Cupressus forbesii B. D. Stark 1933-3-17 4532 -C Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  UC813435  Cupressus forbesii P. A. Munz and I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. 457 Comment
  UCR132994  Cupressus forbesii Adrian Wolf 2000-6-1 469 Orange Santa Ana Mtns., North Ranch Policy Plan Area, West Fremont Canyon 534 Comment
  NY16675  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6278 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
  UC1925890  Cuscuta Donald G. Nelson 1936-6-5 437 Orange Hills NE of Fullerton. 91 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
  RSA409706  Cuscuta californica George Price 1967-5-14 s.n. Orange Silverado Canyon Comment
  RSA542644  Cuscuta californica Fred M. Roberts, Kathy Keane 1988-5-25 3980 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Marker. 85 Comment
  UCR217674  Cuscuta californica var. californica Fred M. Roberts 2008-5-27 7004 Orange Peninsular Range; Santa Ana Mountains Foothills, Lomas de Santiago, Loma Ridge, Hicks Canyon, c. 0.2 km beyond Hicks Canyon Gate, 2.2 km west-northwest of Bee Peak, Irvine Ranch Conservancy 213 Comment
  RSA254969  Cuscuta salina C. W. Tilforth 1975-9-3 1037 Orange Northeast shoreline of Upper Bay, Newport Beach Comment
  UCR193783  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-7-3 35679 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR194551  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35320 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  SD51889  Cycloloma atriplicifolium Peter H. Raven 1961-10-15 16848 Orange Santa Ana River bed at Anaheim Street crossing, Anaheim. 60 Comment
  UCR108380  Cycloloma atriplicifolium L. C. Wheeler 1946-9-28 6377 Orange Newport Bay: Near Point where main coast highway [Hwy 1?]crosses 2 Comment
  UCR109772  Cynara cardunculus R. D. Goeden, Don W. Ricker 1965-6-15 s.n. Orange Canada de Los Alisos, El Toro 122 Comment
  UCR193829  Cynosurus echinatus A. C. Sanders, Fred M. Roberts 2008-7-16 35847 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in canyon below Dripping Spring, c. 7.5 mi. ESE of Tustin 350 Comment
  RSA542339  Cyperus difformis J. West 1990-9-4 s.n. Orange Irvine: University of California campus. 16 Comment
  CAS-BOT-BC114565  Cyperus eragrostis Carl B. Wolf 1932-6-13 3721 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  RSA800024  Cyperus eragrostis Justin M. Wood 2011-6-28 4306 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  RSA0026257  Cyperus involucratus Fred M. Roberts 2013-6-12 7793 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  UCR247901  Cyperus involucratus Fred M. Roberts 2013-6-12 7793 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
  UCSB57539  Cyperus involucratus Roberts, Fred 1984-2-18 Orange Casper's Regional Park; San Juan Canyon, Hwy.74, 4.2 km. NNE Visitor Center along San Juan Creek; 3.1 km. SW San Juan Guard Station 160 Comment
  UC729958  Cyperus laevigatus Carl B. Wolf 1932-7-2 3812 Orange 1/8 mi. below La Vida Springs (Carbon Canyon); Carbon Canyon 213 Comment
  UCR130158  Cyperus laevigatus Joseph A. Ewan 1931-10-3 5197 Orange Below La Vida Soda Springs, Carbon Canyon 213 Comment
  CAS-BOT-BC113821  Cyperus niger var. capitatus Frank Warrington Peirson 1924-10-19 5231 Orange Along edge of water in ditch, Wintersberg. Comment
  RSA710407  Cyperus odoratus Fred M. Roberts 2005-10-3 6295 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
  RSA92111  Cyperus odoratus F. W. Peirson 1924-10-19 2532 Orange Wintersberg 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
  RSA739276  Cyrtomium falcatum R. E. Riefner 2009-1-3 83 Orange Orange County: city of Newport Beach, N Star Beach, vicinity of N Star Ln and White Cliffs Dr. 4 Comment
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Dec 20 2012
  SD260849  Cyrtomium falcatum R. E. Jr. Riefner 2012-2-2 12 19 Orange City of Dana Point, cliff and rocky intertidal area N 0.2 mi of Salt Creek lagoon. 9 Comment
  CAS-BOT-BC402178  Datisca glomerata R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA483  Datisca glomerata J. T. Howell 1927-7-3 263 Orange Claymine Canyon near Sierra Peak. 305 Comment
  UCR261692  Datisca glomerata Dick Newell, Judy Booth 2014-5-15 379 Orange Peninsular Range; Santa Ana Mtns., Modjeska Canyon, 0.3 mi. east of Tucker Wildlife Sanctuary, 1.75 miles SSW of Flores Peak 434 Comment
  SEINET8731612 Image available Datura meteloides Jean Coulson 1959-1 s.n. Orange Santa Anna Mts.; 2.1 miles E. on Esperanz Road from Orangethorpe. On S. side of road. Comment
  RSA733935  Datura stramonium Keith E. Hoffmaster 1934-6-27 5 Orange North Costa Mesa Comment
  UCR192977  Datura wrightii A. C. Sanders, Fred M. Roberts 2008-6-17 35465 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCSB48130  Datura wrightii Roberts, Fred 1981-4-12 Orange SANTA ANA MOUNTAINS: San Juan Canyon, Hwy 74 2.0km SW by road from San Juan Guard Station; 2.7km SW Juan Rancho Survey Mark 210 Comment
  POM201711  Datura wrightii L. M. Booth 1932-7-30 1337 Orange Santa Ana River, 2 miles from ocean Comment
  POM48016  Datura wrightii I. M. Johnston 1924-8-29 s.n. Orange 1 mi. N of Los Alamitos. Comment
  IRVC19407  Daucus carota R. L. Allen 1983-2-8 A 614 Orange Newport Beach: 1935 Highland Street at Kathleen Street. Southern Coastal Comment
  SD5619  Deinandra fasciculata Ruth B. Randall 1926-1 123 Orange Comment
  RSA759114  Deinandra kelloggii Robt Allen, Linnell R. Allen 2008-7-27 s.n. Orange Long Canyon Watershed, along Long Canyon Road, 128 m SE of junction with spur to Mystic Oaks (McConville Camp), 0.48 air miles upslope from junction with Ortega Hwy (SR74). 749 Comment
  CAS-BOT-BC9090  Delphinium cardinale Carl B. Wolf 1932-7-2 3821 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA16419  Delphinium parryi Percy C. Everett 1935-5-19 6871 Orange Santa Ana Mts, Baker Canyon, W Ladd Truck Trail 305 Comment
  RSA683075  Delphinium parryi Scott D. White, Amanda Duchardt 2003-5-1 9154 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  UCR220962  Delphinium parryi Dick Newell, Don Millar, Ashley Nelson 2010-6-8 24 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Canyon Rd. at junction with Dripping Springs Rd., 1/2 mile SW of Silverado Rd. and Santiago Rd. 305 Comment
  RSA581442  Delphinium parryi Fred M. Roberts 1989-5-12 4361 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
  RSA788921  Delphinium parryi subsp. parryi Fred M. Roberts 1999-6-10 5243 Orange Lomas de Santiago: Loma Ridge, Central Limestone Cyn., 4.5 km W Silverado School and 4.5 km NW Bolero Lookout. 306 Comment
  RSA0028963  Delphinium parryi subsp. parryi Thelma Shipe 1932-5-26 s.n. Orange Laguna Hills. PR8. Comment
  RSA548863  Delphinium patens subsp. hepaticoideum Fred M. Roberts, Carol A. Roberts 1988-6-10 4095 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit. 1542 Comment
  RSA662563  Dendromecon rigida P. Shirokawa 1998-5-7 21 Orange Cleveland National Forest- Trabuco Ranger District, 3.2 miles from Ortega Highway (State Highway 74) on North Main Divide Road 991 Comment
  RSA697472  Descurainia pinnata Elisabeth Norland 1929-3-3 s.n. Orange Cypress, Calif-Orange Rd. Comment
  UCR211966  Descurainia pinnata Dick Newell, Don Millar 2010-2-23 001 Orange South Coast, Serrano Ridge, 3 mi west of Laguna Hills, 0.67 mi west of Languna Canyon Road, east of Shady Canyon 244 Comment
  CAS-BOT-BC402216  Dicentra chrysantha P. C. Everett 1935-5-19 6870 Orange Santa Ana Mts., Baker Canyon, West Ladd Truck Trail 304 Comment
  RSA761799  Dicentra chrysantha Robt. Allen 2003-6-22 12293 Orange Northwest-facing flank of Santiago Peak, along North Main Divide Road. 1556 Comment
  RSA732173  Dichelostemma capitatum A. C. Sanders, Fred M. Roberts 2008-3-25 34543 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR103218  Dichelostemma capitatum Scott D. White 1997-2-19 4699 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR17051  Dichelostemma capitatum subsp. capitatum R. Stoltz 1969-4-17 28 Orange Southern Coast, Newport Beach, 0.8 mi west of the junction of Backbay Dr. and Jamboree Rd 30 Comment
  HSC3089  Dichelostemma capitatum subsp. capitatum J. J. Wagoner 1965-4-11 21 Orange 3 mi. N of Modjeska Canyon along Irvine Rd. Comment
  RSA652705  Dichelostemma capitatum subsp. capitatum Julie Greene 1991-5-10 214 Orange Town of Sleepy Hollow, southernmost end of Grandview Dr. Along dirt trail south to top of ridge between Carbo and Soquel Canyons. Location #3. 366 Comment
  RSA0012746  Dichondra occidentalis Fred M. Roberts 2012-5-10 7571 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
  UCR222884  Dichondra occidentalis T. B. Salvato 2010-10-27 5122 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
  UCD64152  Digitaria sanguinalis Beecher Crampton 1965-10-27 7580 Orange 2 miles east of Irvine, Irvine Blvd. Comment
  SEINET3412116 Image available Diplachne fusca var. uninervia Pat Sawyer 34 Orange from Back Bay area at Newport Beach Comment
  SEINET13682959  Diplacus aurantiacus R. Nelson, Baumann, Kondratieff, Sargent 1988-1-12 5117 Orange Cleveland NF, San Juan Creek at Lower San Juan Campground. 366 Comment
  RSA0045521  Diplacus aurantiacus Jeanne Paxton 1934-4-21 s.n. Orange Modjeska Canyon. PR8. Comment
  CAS-BOT-BC151046  Diplacus brevipes A. C. Sanders 2008-4-29 35125 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  CAS-BOT-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
  RSA715248  Diplotaxis muralis A. C. Sanders 2006-5-6 32250 Orange South Coast: UC Irvine Arboretum, NE side of gardens towards Campus Dr. 15 Comment
  CAS-BOT-BC43568  Diplotaxis tenuifolia Katherine Esau 1931-5-13 s.n. Orange Santa Ana. Comment
  RSA552948  Distichlis spicata Fred M. Roberts, R. E. Riefner 1989-5-2 4329 Orange Aliso-Wood Canyon Regional Park: Aliso Canyon, 3.4 kilometers SSE Moulton Peak., UTM 3711900m N, 432900m E 30 Comment
  SD27980  Draba cuneifolia Carl B. Wolf 1932-2-17 2661 Orange Rancho Santa Ana Botanic Garden, just west of Adenostoma sparsifolum Bed. 600 Comment
  UCSB48384  Drymocallis glandulosa var. glandulosa Roberts, Fred 1982-4-18 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 0.6km SW Lower San Juan Picnic Ground; 1.9km WNW Sitton Peak 420 Comment
  POM179748  Dryopteris arguta Marcus E. Jones 1931-3-23 s.n. Orange Laguna Comment
  RSA698476  Dryopteris arguta Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  UCR175515  Dryopteris arguta Mark A. Elvin, A. C. Sanders 2005-9-2 4497 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 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
  UCSB48105  Dryopteris arguta Fritzke, S.; Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: San Juan Canyon, 2.4km ENE San Juan Guard Station; 0.3km WSW Bench Mark 1100. 88 Comment
  CAS-BOT-BC428262  Dudleya edulis K. Nakai 1978-4-19 360 Orange Aliso Canyon, ca. 200 yards from Hwy 1 6 Comment
  JEPS73701  Dudleya lanceolata L. R. Heckard and R. C. Bacigalupi 1968-5-8 1838 Orange just n Doheny Beach Park; Dana Point Comment
  POM6592  Dudleya lanceolata P. A. Munz 1919-5-4 s.n. Orange Laguna canyon Comment
  UC933289  Dudleya lanceolata Reid Moran 1948-6-23 3094 Orange s side Aliso Canyon; Laguna Beach Comment
  UCR240110  Dudleya lanceolata Dick Newell, Judy Booth 2012-6-3 261 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
  UCR281804  Dudleya lanceolata Mitch Provance 2017-3-20 317- 127 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.25 miles NNE of intersection with Castlewood Dr. 164 Comment
  CAS-BOT-BC411410  Dudleya lanceolata Ethel H. Campbell 1921-5-1 2 Orange Laguna Beach Comment
  RSA5410  Dudleya lanceolata C. B. Wolf 1932-12-16 1681 Orange At bar of plumes 0.5 mi. from Skyline Drive on firebreak road to Sierra Peak, Santa Ana Mts. Alt. 2500-3000 ft. 762 Comment
  UCSB48002  Dudleya lanceolata Roberts, Fred 1980-7-11 Orange Santa Ana Mtns.: Viejo Canyon; 3.0 km. ENE San Juan Guard Station; 0.6 km. N Hwy. 74 353 Comment
  RSA397815  Dudleya multicaulis Thekla Mohr 1920-06 s.n. Orange Hills near Laguna Comment
  RSA587888  Dudleya multicaulis Fred M. Roberts 1990-5-7 4611 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 kilometers NE Clemente Survey Marker. 152 Comment
  RSA732271  Dudleya multicaulis A. C. Sanders 2008-4-29 35129 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
  RSA773547  Dudleya multicaulis Fred M. Roberts 2008-6-10 7037 Orange Lomas de Santiago: Loma Ridge, above and to the west of the Haul Road, 2.3 km NNW Bee Peak. Irvine Ranch Conservancy 429 Comment
  UC338337  Dudleya multicaulis unknown Orange Newport Bay 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
  UCR215300  Dudleya multicaulis Fred M. Roberts 2008-4-23 6925 Orange Lomas de Santiago, Loma Ridge, north end along Sheriff Rd., 1.6 km SE of Peters Canyon Reservoir dam 340 Comment
  SD129960  Dudleya stolonifera Reid Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 124 Comment
  UC806717 Image available Dudleya stolonifera R. V. Moran 1948-6-23 3095 Orange n-facing cliff near mouth Aliso Canyon (s of Laguna Beach); ; near mouth of Aliso Canyon, S of Laguna Beach, Orange Co. 7 Comment
  CAS-BOT-BC109771  Dudleya viscida E. K. Balls 1936-6-17 19736 Orange Santa Ana Mountains, San Juan Canyon, along Ortega Highway, 0.6 mile below San Juan Hot Springs. Comment
  RSA562748  Dudleya viscida Steve Boyd, Timothy S. Ross 1992-5-19 7444 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  CAS-BOT-BC197033  Echinochloa colona M. F. Bradshaw 1902-7-1 s.n. Orange Orange Comment
  CAS-BOT-BC197034  Echinochloa colona E. R. Johnson 1936-7-10 8104 Orange Rancho Santa Ana, Santa Ana Canyon Vegetable Garden 121 Comment
  UCD60743  Echinochloa colona Ira L. Wiggins 1965-9-25 20251 Orange Curbway, S of Dorothy Lane near intersection with Kroeger Ave., Fullterton. Comment
  RSA21041  Echinochloa crus-galli E. R. Johnson 1938-8-22 9451 Orange Rancho Santa Ana, Santa Ana Canyon; South of Picnic Grounds 122 Comment
  RSA49  Echinochloa crus-galli Thos Howell 1927-10-29 787 Orange Near Cypress Station. 30 Comment
  SD218250  Echinochloa crus-galli Mark A. Elvin 2004-5-2 3426 Orange Irvine; San Joaquin Freshwater Marsh near Campus and University Drs. 3 Comment
  UC1543182  Echinochloa crus-galli Donald G. Nelson 1935-6-28 341 Orange W. Orange thorpe Ave. sw Fullerton Comment
  UCD60823  Echinochloa crus-galli Beecher Crampton 1965-10-27 7584 Orange 2 miles E of Irvine, UC South Coast Field Station. Comment
  UCR154271  Echinochloa crus-galli Mark A. Elvin 2004-5-2 3426 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA708444  Echinochloa crus-galli Mark Elvin 2004-5-2 3426 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
  RSA697609  Echinocystis macrocarpa Effie Jessup s.n. Orange Arch Beach Hills 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
  RSA747632  Echium candicans Fred M. Roberts 2008-5-16 6979 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  SBBG104111  Ehrendorferia chrysantha B. Pitzer, S. Hemstreet 1992-5-21 1948 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and on left ca. 1 mi on old paved Rd 762 Comment
  RSA731006  Ehrharta erecta Fred M. Roberts, B. Allen 2007-1-19 6508 Orange Mission Viejo: 23012 Via San Gabriel. Irrigated urban landscaping. 230 Comment
  RSA731651  Ehrharta erecta Fred M. Roberts 2007-10-29 6628 Orange Laguna Beach: Temple Hill, Nyes Place, c.a. 0.2 km S Moulton Meadows Park. 232 Comment
  SEINET7249216  Ehrharta erecta R. E. Riefner Jr. 2012-1 12 -15 Orange City of Dana Point, Dana Point Harbor, vicinity of Puerto Pl. and Dana Point Harbor Drive. 2 Comment
  UCR218616  Eleocharis coloradoensis Robert DeRuff 2008-1 575 Orange South Coast, Upper Newport Bay, between Mariner's Drive and 23rd St. 12 Comment
  RSA86  Eleocharis geniculata J. T. Howell 1927-7-18 422 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  POM50482  Eleocharis montevidensis var. montevidensis Helen D. Geis 1902-1 507 Orange Santa Ana. Comment
  RSA542338  Eleocharis montevidensis var. montevidensis Fred M. Roberts, K. Keane 1988-5-25 3984 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark. 82 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
  RSA85  Eleocharis rostellata J. T. Howell 1927-7-21 449 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA0117550  Eleocharis rostellata L. M. Booth 1932-6-4 1151 Orange Newport Lagoon. Comment
  UCR266424  Eleusine coracana D. E. Bramlet 2009-11-20 4419 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  RSA735121  Eleusine coracana subsp. africana R. E. Riefner 2006-11-15 6 -677 Orange City of Irvine, Shady Canyon Rd. at Quail Hill. 35 Comment
  RSA542551  Eleusine indica Fred M. Roberts 1987-8-19 3587 Orange Santa Ana River: adjacent to Fountain Valley, Harbor Bridge. 13 Comment
  POM202592  Elymus X gouldii L. M. Booth 1932-5-24 1090 Orange Newport Lagoon. Comment
  RSA679226  Elymus multisetus Fred M. Roberts 2003-6-25 5944 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  UCR93245  Elymus triticoides F. M. Reed 1928-5-10 5883 Orange Laguna Canyon below lakes 91 Comment
  UCR101531  Emex spinosa B. G. Pitzer 1997-3-25 3029 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
  CAS-BOT-BC412640  Emex spinosa unspecified 1933-4-21 s.n. Orange Lemon Grove Comment
  RSA39343  Emex spinosa E. L. Paddock 1943-5-26 12740 Orange Frank Anderson grove, Manchester, 1/8 mile south of Midway Drive, Anaheim. 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
  HSC5477  Encelia californica C. L. Hitchcock, C. V. Muhlick 1964-3-17 23069 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  IRVC14677  Encelia californica A. S. Boughey 1968-7-16 423 Orange road to Signal Peak. San Joaquin Hills Comment
  IRVC28776  Encelia californica Archie F. Iskaq 2006-2-4 1 Orange San Joaquin Marsh; NW Edge of Marsh. Southern Coastal 3 Comment
  POM360026  Encelia californica Robert W. Townsend 1939-7-28 159 Orange Roadsie of Higway west of Atwood Comment
  POM4950  Encelia californica P. A. Munz 1918-5-4 2225 Orange Laguna Beach Comment
  RSA278305  Encelia californica C. W. Tilforth, Walter Wisura 1979-5-23 1809 Orange Mouth of Aliso Canyon, south Laguna. Comment
  RSA585052  Encelia californica D. Atwood 1993-3-27 17701 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  UCR140798  Encelia californica Robin G. Marushia 2004-5-4 014 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
  UCR267184  Encelia californica Fred M. Roberts 2010-3-12 7177 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  UCR193826  Epilobium ciliatum A. C. Sanders, Fred M. Roberts 2008-7-16 35838 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UCSB48194  Epilobium ciliatum Roberts, Fred 1981-6-26 Orange Santa Ana Mountains, East fork Viejo Cyn., 0.6 km N Calif. Rte. 74; 2.7km E San Juan Guard Station 326 Comment
  RSA496  Epilobium ciliatum subsp. ciliatum J. T. Howell 1927-7-5 267 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA731008  Epilobium ciliatum subsp. ciliatum Fred M. Roberts 2006-11-15 6471 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  RSA698282  Epilobium watsonii var. franciscanum Snow 1929-3-18 39 Orange Santa Ana River. Comment
  UC536935  Epipactis gigantea Lawrence M. Booth 1932-6-4 1150 Orange Newport Lagoon; base of hill Comment
  RSA615544  Epipactis gigantea Pete Bloom 1991-05 s.n. Orange Lomas de Santiago: Limestone Canyon Regional Park site, Upper Limestone Canyon, 2.4 kilometers WNW Bolero Lookout. 437 Comment
  IRVC25079  Equisetum hyemale subsp. affine Karlin G. Marsh 1989-6-20 Orange Santa Ana mtns: Santiago Canyon, Fleming Park above Modjeska, ca 3.0km WSW Laurel Springs. Peninsular Ranges 440 Comment
  RSA790024  Equisetum hyemale var. affine R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49565 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR174026  Equisetum laevigatum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33050 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-BC57386  Equisetum laevigatum Helen D. Geis 1902-4-1 s.n. Orange Santa Ana Comment
  UCD64312  Eragrostis pectinacea Beecher Crampton 1965-10-27 7583 Orange 2 miles E of Irvine, UC South Coast Field Station. Comment
  UCR236675  Eragrostis pilosa Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7105 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
  UCD33246  Eremalche exilis Beecher Crampton 1967-5-23 7956 Orange Orange County, 4 miles east of Irvine, UC South Coast Field Station. Comment
  SEINET7909393  Eriastrum eremicum C. Knight 1967-1 Orange San Juan Capistramo 610 Comment
  UCSB48005  Eriastrum sapphirinum subsp. dasyanthum Roberts, Fred 1980-6-29 Orange Santa Ana Mtns., Viejo Canyon, 0.4 km. N Calif. Rte. 74; 2.2 km. ENE San Juan Guard Station 341 Comment
  RSA0121313  Eriastrum sapphirinum subsp. dasyanthum P. A. Munz 1949-5-26 13374 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains 732 Comment
  RSA0121317  Eriastrum sapphirinum subsp. dasyanthum Fred M. Roberts, Dave Bontrager 1990-6-5 4677 Orange Rancho Mission Viejo: Lower Canada Gobernidora, ca. 3.0 km W Point Rancho Survey Marker. 104 Comment
  RSA0122938  Eriastrum sapphirinum subsp. dasyanthum E. W. Lathrop 1974-6-27 7419 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA0122941  Eriastrum sapphirinum subsp. dasyanthum Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA741718  Ericameria cuneata var. cuneata R. E. Riefner 2007-6-29 07 -285 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, E fork Fremont Canyon, Black Star SCE Rd. 613 Comment
  RSA741719  Ericameria cuneata var. cuneata R. E. Riefner 2008-6-3 08 -135 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, E fork Fremont Canyon, Black Star SCE Rd. 641 Comment
  CAS-BOT-BC299499  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2943 Orange Rancho Santa Ana, Santa Ana Canyon 207 Comment
  RSA554643  Ericameria palmeri var. pachylepis Scott D. White 1992-9-29 866 Orange Vicinity of City of Brea, immediately N of Carbon Canyon Road and E of Placentia Avenue, +/- 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  UC536889  Ericameria palmeri var. pachylepis L. M. Booth Orange Newport Beach Comment
  UCR239618  Ericameria palmeri var. pachylepis Fred M. Roberts 2012-4-27 7537 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, 1.9 km southwest of Irvine Lake Park Campground and 1.2 km east-souteast of Orange County Emergency Operations Center, Hill 1311 350 Comment
  RSA38491  Ericameria parishii Percy C. Everett 1945-11-13 11512 Orange Indian Canyon Truck Trail, Indian Canyon, Santa Ana Mts. 960 Comment
  RSA789196  Ericameria parishii Naomi Fraga, Duncan S. Bell, Sarah J. De Groot 2009-9-11 3157 Orange Santa Ana Mountains, Blue Jay Campground. 910 Comment
  LA202522  Ericameria parishii var. parishii David S. Verity; 1966-11-23 sn Orange Santa Ana Mountains, Los Pinos Peak, near peak 1219 Comment
  CAS-BOT-BC293091  Ericameria pinifolia John Thomas Howell 1927-10-23 3172 Orange On n. side of Santa Ana Canon [Canyon] 152 Comment
  UC1118814  Ericameria pinifolia H. E. Norton 1931-2-26 31 Orange San Joaquin Hills Corona Quad., San Joaquin Hills 121 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
  RSA7463  Erigeron foliosus C. B. Wolf 1933-8-24 5382 Orange Santa Ana Mountains; Along main divide near Bedford Peak. 1067 Comment
  CAS-BOT-BC296140  Erigeron foliosus var. foliosus Le Roy Abrams 1901-6-17 2220 Orange El Toro Comment
  IRVC14814  Erigeron foliosus var. foliosus A. S. Boughey 1968-7-9 384396 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UCR215284  Erigeron foliosus var. foliosus Fred M. Roberts 2008-5-14 6964 Orange Lomas de Santiago, Loma Ridge, upper Bee Flat Canyon below Loma Ridge Road, 1.3 km north of Bee Peak and 5.4 km NW of Bolero Lookout. Irvine Ranch Conservancy 337 Comment
  POM357494  Erigeron foliosus var. stenophyllus F. R. Fosberg 1931-6-21 748 Orange Silverado Canyon. Santa Anita Mts. Comment
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Nov 26 2016
  RSA0025300  Erigeron karvinskianus R. E. Riefner Jr. 2013-1-16 13 -15 Orange City of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach. 7 Comment
  RSA699659  Eriodictyon crassifolium Keith E. Hoffmaster 1931-3-22 s.n. Orange Santa Ana Mountains Comment
  RSA721834  Eriodictyon crassifolium Minor Warne 1934-4-14 s.n. Orange Laguna Canyon. Comment
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Jun 24 2009
  UC219277  Eriodictyon crassifolium P. A. Munz and I. M. Johnston 1921-5-18 5316 Orange Santa Ana River Canyon; abundant in bed of side canyon 243 Comment
  JEPS43  Eriodictyon crassifolium var. crassifolium Alice King May 1908 Orange Orange Park mouth of Santiago Canyon (mouth of Santiago Canyon); Santa Ana Mountains, , Orange Park Comment
  OBI41036  Eriogonum fasciculatum Melissa Thorme 1983-11-23 14 Orange S bank of Newport Beach's back bay area Comment
  RSA698423  Eriogonum fasciculatum L. C. Hull 1934-4-8 s.n. Orange Laguna Hills. Comment
  UCR222389  Eriogonum fasciculatum Mark A. Elvin 2003-1-26 2243 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA734763  Eriogonum fasciculatum subsp. foliolosum A. C. Sanders, T. B. Salvato 2008-5-13 35343 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
  CAS-BOT-BC253219  Eriogonum fasciculatum var. fasciculatum D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach Comment
  SD38687  Eriogonum fasciculatum var. fasciculatum Edith A. Purer 1932-8-31 4872 Orange Orange Co. near Route #101 Comment
  LA206859  Eriogonum fasciculatum var. foliolosum A. M. Johnson; 1932-4-23 4027 Orange N of Orange Comment
  UCR131885  Eriogonum fasciculatum var. foliolosum J. Mallory, V. McCoy 1995-7-3 6454- 98 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. east of confluence with Santiago Canyon, on a W-facing slope. north of Irvine Lake 300 Comment
  SD255831  Eriogonum giganteum John Roos, Lucille Roos 1950-9-25 4992 Orange Rancho Santa Ana Botanic Garden, Santa Ana Canyon. 136 Comment
  CAS-BOT-BC253476  Eriogonum gracile Helen D. Geis 1902-3-1 s.n. Orange Santiago Canyon Comment
  JEPS56922  Eriogonum gracile Lawrence M. Booth 1932-8-9 1369 Orange Newport Bay Comment
  CAS-BOT-BC253478  Eriogonum gracile H. E. Hasse 1890-9-1 s.n. Orange Santa Monica Range Comment
  RSA766138  Eriogonum gracile Joseph A. Ewan 1932-7-29 7738 Orange Road around Newport Lagoon. Comment
  POM201803  Eriogonum gracile var. gracile L. M. Booth 1932-7-29 1331 Orange Newport Lagoon Comment
  RSA393245  Eriogonum gracile var. gracile J. T. Howell 1927-7-16 2781 Orange Hills on N side of Santa Ana Canyon. 152 Comment
  RSA581664  Eriogonum gracile var. gracile Tony Bomkamp 1995-06 s.n. Orange Rancho Santa Margarita, ca. 1/8 mile west of Oso Parkway and 1/8 mile south of Canada Chiquita. Comment
  UC205014  Eriogonum parvifolium F. M. Reed Aug. 1920 Orange 3 mi s Laguna Comment
  UCD100835  Eriogonum parvifolium A. C. Sanders 1990-10-6 10179 Orange Newport Bay, Westcliff Park area on the SW end of the bay, 1 km inland of Hwy 1. 1 Comment
  UC1618033  Eriogonum thurberi Donald G. Nelson 1935-6-2 365 Orange n. Brea (mouth of Brea Canyon, on Tonner lease); Brea Canyon, Tonner lease Comment
  RSA0054886  Eriogonum virgatum Keith E. Hoffmaster 1933-10-29 485 Orange Santa Ana mts. [Orange or Riverside]. Comment
  CAS-BOT-BC261799  Eriogonum wrightii var. subscaposum Carl B. Wolf 1933-8-24 5404 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA7392  Eriogonum wrightii var. subscaposum Carl B. Wolf 1933-8-24 5404 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  CAS-BOT-BC297325  Eriophyllum confertiflorum R. K. Brummitt; et al. 1998-5-23 19989 Orange Newport Beach, by marina; by harbour entrance 10 Comment
  CAS-BOT-BC297331  Eriophyllum confertiflorum L. R. Abrams 1901-6-15 1834 Orange Santiago Peak Comment
  OBI63089  Eriophyllum confertiflorum R. K. Brummitt 1998-5-23 19989 Orange Newport Beach, by marina 10 Comment
  RSA695678  Eriophyllum confertiflorum Minor Warne 1934-3-21 s.n Orange Limestone Canyon. Santa Ana Mts. Comment
  LA203535  Eriophyllum confertiflorum var. confertiflorum A. M. Johnson; 1932-4-23 4019 Orange Orange Comment
  LA203538  Eriophyllum confertiflorum var. confertiflorum W. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA783824  Eriophyllum confertiflorum var. confertiflorum J. D. Olmsted 1959-5-1 531 Orange Santa Ana Mt. Range: Drainage to Santa Ana River . 100 yards NW of Rattlesnake Rock. 0.5 mi N of Hidden Ranch in Black Star Canyon. 4-5 mi Irvine Lake Reservoir to the west. 732 Comment
  RSA748805  Erodium botrys G. Gust, L. Nye 2005-3-12 566 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UCSB3526  Erodium botrys Wedberg, H. 1958-3-29 Orange 1/2 mile east of coast HWY on McArthur Blvd., Corona del Mar Comment
  RSA653187  Erodium cicutarium David Barrios 1991-5-1 6 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle. 366 Comment
  RSA732076  Erodium cicutarium A. C. Sanders, Fred M. Roberts 2008-3-25 34564 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UCD103257  Erodium cicutarium C. L. Hitchcock 1966-3-15 24138 Orange 1/2 mile e. of Brea. Comment
  UCR241908  Erodium cicutarium Fred M. Roberts 2012-4-24 7527 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
  SEINET12182146  Erodium cicutarium J. F. Bright, Wyman, C. 1933-1 8180 Orange Laguna Beach Comment
  RSA0127608  Erodium malacoides Fred M. Roberts 2016-4-18 8038 Orange City of Irvine: San Joaquin Hills, Turtle Rock Community, slopes above San Rufino Drive, 1.0 km SSW summit of French Hill. 101 Comment
  UCR193823  Erodium moschatum A. C. Sanders, Fred M. Roberts 2008-7-16 35868 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  RSA423  Erodium moschatum J. T. Howell 1928-2-7 824 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  UCR188898  Erythrina caffra Robert DeRuff 1985-1 103 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, along the path from Mariners Drive to North Star Beach 30 Comment
  UCR188899  Erythrina caffra Robert DeRuff 2007-10-24 s.n. Orange Southern Coast, Newport Beach, Upper Newport Back Bay. Back Bay Drive, c. 0.3 km E of the junction with Eastbluff Drive 6 Comment
  JEPS51726  Eschscholzia californica Alice King June, 1908 Orange Santa Ana Comment
  RSA734963  Eschscholzia californica A. C. Sanders, Fred M. Roberts, A. O'Neal 2008-5-9 35308 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  RSA785386  Eschscholzia californica Keith E. Hoffmaster 1934-1 402 Orange Santa Ana Comment
  UCR191364  Eschscholzia californica A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34625 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
  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
  POM256959  Eschscholzia californica var. peninsularis W. Pequegnat 1940-4-15 s.n. Orange SW face of Modjeska Peak, Santa Ana Mts. 1524 Comment
  RSA753034  Eucalyptus sideroxylon A. C. Sanders, Fred M. Roberts 2008-9-18 36077 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  UCR50904  Eucalyptus tereticornis Dave Goodward 1987-4-16 4 Orange Irvine Ranch, Boy Scout Camp in Peters Canyon, east of Tustin and c. 1 mi NE of the Irvine Blvd/Myford Road intersection 122 Comment
  CDA5158  Eucalyptus utilis D. G. Kelch 2006-12-9 6 .538 Orange Along Newport Back Bay Dr. in side canyon. Comment
  POM50213  Eucrypta chrysanthemifolia Helen D. Geis 1902-1 513 Orange Santiago Creek. Comment
  POM6266  Eucrypta chrysanthemifolia P. A. Munz, Street, Williams 1919-5-3 2673 Orange Santa Ana River Canyon. Comment
  RSA603249  Eucrypta chrysanthemifolia R. S. Woglum 1939-5-14 s.n. Orange Peninsular Ranges: Santa Ana Mountains, Trabuco Canyon. Comment
  RSA609  Eucrypta chrysanthemifolia J. T. Howell 1927-6-21 180 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA732059  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-4-8 34750 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  RSA732244  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-4-22 34995 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
  UCR191478  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-4-8 34750 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  JEPS1722  Eucrypta chrysanthemifolia var. chrysanthemifolia John Thomas Howell 1927-6-21 2566 Orange Rancho Santa Ana; Santa Ana Canyon 152 Comment
  JEPS1725  Eucrypta chrysanthemifolia var. chrysanthemifolia Alice King 1908-2-23 Orange Santa Ana River Santa Ana River, Anaheim; Anaheim Comment
  UCR86018  Euphorbia Scott D. White 1992-11-24 974 Orange Vicintiy of Brea, immediately north of Carbon Canyon Road & east of Placentia Ave. 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  SD220055  Euphorbia albomarginata Mark A. Elvin 2004-5-2 3428 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  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
  CLARK-A1528-5001  Euphorbia maculata John C. Roos 1937-5-21 2066 Orange Orange Comment
  IRVC25153  Euphorbia maculata Fred M. Roberts 1986-9-3 3133 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA0029993  Euphorbia misera R. E. Riefner Jr. 2013-1-16 13 -16 Orange City of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach. 3 Comment
  UCR198091  Euphorbia misera G. L. Webster 1966-12-11 7479 Orange South Coast, Dana Point Comment
  UCR55556  Euphorbia misera G. L. Webster 1966-12-11 7479 Orange South Coast, Dana Point 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
  SD152866  Euphorbia peplus Steve Boyd, Tim Ross 1992-5-19 7439 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness area. Western edge of wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstreem to confluence with Aliso Canyon (mak 1/06) 270 Comment
  SD181550  Euphorbia peplus Louis C. Wheeler 1946-3-6 6173 Orange Newport Bay; mainland north of east end of Balboa Island. 3 Comment
  UCR102036  Euphorbia peplus B. G. Pitzer 1997-3-25 3019 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  RSA562743  Euphorbia peplus Steve Boyd, T. S. Ross 1992-5-19 7439 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  RSA680738  Euphorbia polycarpa Scott D. White 2003-3-21 8818 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA773524  Euphorbia polycarpa var. polycarpa Fred M. Roberts 1999-5-14 5215 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout. 451 Comment
  IRVC17085  Euphorbia serpyllifolia var. hirtula A. B. McGee 1980-9-9 Orange San Diego Creek Channel, adjacent to San Joaquin Freshwater Marsh. Irvine Comment
  IRVC23251  Euphorbia serpyllifolia var. hirtula K. Kirtland 1987-8-25 Orange Santa Fe Channel along Edinger Ave.; disturbed flood channel with flowing water, sandy soil. Tustin Comment
  RSA795235  Eustoma exaltatum Justin M. Wood, Dustin Ray 2010-10-1 2773 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
  RSA723485  Euthamia occidentalis R. E. Riefner 2006-11-12 06 -666 Orange City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay; San Diego Creek at SR-73 overpass. 6 Comment
  RSA91147  Euthamia occidentalis F. W. Peirson 1924-10-19 5243 Orange Wintersberg. Comment
  UCR193048  Festuca arundinacea A. C. Sanders, Mitch Provance 2008-5-20 35410 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  CLARK-A1528-4649  Festuca californica John C. Roos 1930-5-20 3237 Orange Capistrano Beach Comment
  RSA731318  Festuca californica Fred M. Roberts, Robt. Allen, Chris M. Barnhill, Nancy Hatfield 2005-5-30 6230 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46 km W summit. West-facing slope in loose rocky tallus, full sun, and chaparral borders. 1670 Comment
  UCSB47952  Festuca microstachys Roberts, D. 1980-5-3 Orange 2.0 km West Trabuco peak (on Main divide Truck trail) 125 Comment
  UCR102013  Festuca myuros var. myuros B. G. Pitzer 1997-3-25 3007 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  SD28080  Festuca temulenta E. R. Johnson 1932-5-18 3638 Orange Rancho Santa Ana Botanic Garden, east edge of grain field bordering Rancho. 198 Comment
  CAS-BOT-BC474715  Ficus rubiginosa R. E. Riefner, Jr. 2014-2-24 14 -65 Orange City of Dana Point, W ca. 0.1 mi from Island Way along Dana Point Harbor Dr., cliff slope immediately S of Santa Clara Ave. and Amber Lantern St. 11 Comment
  CDA23581  Ficus rubiginosa Mark A. Elvin, D. G. Kelch 2006-12-9 5314 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  RSA552943  Filago californica Fred M. Roberts, Carol A. Roberts 1989-4-20 4300 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
  RSA627759  Filago californica Scott D. White 1998-3-24 6229 Orange University of California, Irvine Campus: Site of proposed Research Park. Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 36 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
  RSA542432  Filago gallica Fred M. Roberts 1988-4-10 3909 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  UCR102018  Filago gallica B. G. Pitzer 1997-3-25 3021 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  HSC24263  Foeniculum vulgare James Henrickson 1970-7-25 5064 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March 0 Comment
  CAS-BOT-BC63026  Frangula californica subsp. californica E. W. Lathrop 1974-6-27 7412 Orange 5 mi. e. of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest. 396 Comment
  SBBG92712  Frangula californica subsp. californica R. Moran 1975-7-18 22598 Orange near Yaeger Mine, upper Trabuco Cyn 725 Comment
  SD119374  Frangula californica subsp. californica Reid Moran 1975-11-21 22740 Orange in bottom of Trabuca Canyon, Santa Ana Mountains 399 Comment
  RSA391396  Frankenia grandifolia Albert J. Perkins 1908-5-30 s.n. Orange Laguna Mesa Comment
  RSA391399  Frankenia grandifolia Albert J. Perkins 1917-10-14 s.n. Orange Salt marsh at mouth of Aliso Canyon. Comment
  RSA5241  Frankenia grandifolia Carl B. Wolf 1932-9-13 4029 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd. 8 Comment
  IRVC8591  Frankenia salina Paul Fishman, Hayden R. Williams 1969-9-23 980 Orange Upper Newport Bay: below East Bluff. Southern Coastal 2 Comment
  SD181496  Frankenia salina Valerie Soza, K Clark,L Gross,W Miller,F Roberts,G Wallace 2001-4-4 1104 Orange Seal Beach National Wildlife Refuge, Seal Beach U.S. Naval Weapons Station, across access road from Nature Center (Bldg. 226); Seal Beach 7.5' quad. Wet depression in salt marsh. 3 Comment
  SD82963  Frankenia salina C. Davidson 1970-7-25 1494 Orange Bolsa Chica; Signal oil field. Comment
  CDA23146  Fraxinus uhdei Mark A. Elvin, D. G. Kelch 2006-12-9 5304 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  UCR132568  Fraxinus uhdei Robert DeRuff 1990-4-22 086 Orange Southern Coast, Newport Back Bay 3 Comment
  RSA696600  Fumaria officinalis Keith E. Hoffmaster 1933-3-15 410 Orange near Santa Ana. Comment
  RSA184096  Fumaria parviflora I. L. Wiggins 1966-2-16 20445 a Orange Orange grove N side of Yorba Linda Blvd, near corner of Associated road, Fullerton Comment
  UCR132569  Gaillardia X grandiflora Robert DeRuff 2001-9-19 s.n. Orange Southern Coast, Newport Back Bay, Shellmaker Island 1 Comment
  CAS-BOT-BC304316  Galinsoga parviflora A. C. Sanders; Fred M. Roberts 2008-5-6 35226 Orange Peninsular Range: Santa Ana Mts: Lomas de Santiago, lower Hicks Canyon, just above tollway (Highway 241) crossing on Irving Haul Rd, near debris basin 216 Comment
  RSA680560  Galium angustifolium Scott D. White 2003-3-21 8816 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA682913  Galium angustifolium Scott D. White, Amanda Duchardt 2003-5-1 9163 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  UCR281586  Galium angustifolium Mitch Provance 2017-6-9 617- 90 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.25 miles NNE of intersection with Castlewood Dr. 164 Comment
  POM367704  Galium angustifolium subsp. angustifolium Albert J. Perkins 1912-6-8 s.n. Orange Foothills, north of Laguna Beach. Comment
  RSA631403  Galium angustifolium subsp. angustifolium Valerie L. Soza, LeRoy Gross 1999-6-7 490 b Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UCR227752  Galium angustifolium subsp. angustifolium R. F. Thorne 1963-7-26 32825 Orange Santa Ana Mountains, Cleveland National Forest, [vicinity of road from Beek's Spring to Pleasants Peak], Trabuco District 1159 Comment
  POM186338  Galium angustifolium subsp. angustifolium Joseph A. Ewan 1932-7-29 7736 Orange Road around Newport Lagoon. Comment
  UCSB47621  Galium aparine Roberts, Fred 1980-4-3 Orange Dana Point: hills, 1.0km NE Dana Hills High School 75 Comment
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Oct 28 2018
  CAS-BOT-BC94862  Galium nuttallii subsp. nuttallii R. C. Wenk 2008-3-24 722 Orange Chino Hills S.P., South Ridge Road west of San Juan Hill, going W from Equestrian Staging Area 441 Comment
  RSA734901  Galium parisiense A. C. Sanders 2008-5-28 35436 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  RSA274919  Galium parisiense R. John Little 1976-6-17 1757 Orange Mid Crow Canyon north of Burks Rd. Comment
  RSA702689  Galium porrigens Scott D. White, Michael Honer 2004-5-17 10390 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
  UCR149873  Galium porrigens Scott D. White, Michael Honer 2004-5-17 10390 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
  RSA698801  Galium porrigens var. porrigens Unspecified s.n. Orange Lower Trabuco. Comment
  UC1608262  Galium porrigens var. porrigens Steve Boyd and Tim Ross 1992-5-20 7457 Orange along canyon floor from crossing of old Lucas Canyon trail upstream 1/4 mi to spur trail leading to old mining habitations in side canyon (w edge of wilderness); Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 304 Comment
  UC536927  Galium trifidum var. pacificum Lawrence M. Booth 1932-7-4 1244 Orange Newport Lagoon Comment
  UCR193262  Gamochaeta pensylvanica A. C. Sanders, Fred M. Roberts 2008-6-17 35523 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  CHSC39254  Garrya flavescens M. O. Dillon 1977-4-12 Orange Santa Ana Mts., Silverado Canyon. Comment
  RSA124724  Garrya flavescens E. K. Balls, P. C. Everett 1957-11-25 22847 Orange 1.1 mile E of Silverado 884 Comment
  RSA171101  Garrya flavescens var. pallida Robert F. Thorne 1963-7-26 32831 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA688864  Gastridium phleoides Fred M. Roberts, David E. Bramlet 2003-4-10 5643 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  POM255093  Gaura odorata E. Johnson 1940-8-15 s.n. Orange Kokke estate, I.5 miles north of Placentia. Comment
  SD232261  Geranium carolinianum Scott D. White, Brian Leatherman 1997-5-6 5037 Orange Santa Ana Mtns.: Santiago Canyon area. Unnamed tributary to Santiago Ck. Flowing from the SW, directly west of Pancho Cyn. Lomas de Santiago S 179. 366 Comment
  RSA688875  Geranium dissectum Fred M. Roberts 2003-5-1 5664 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
  CAS-BOT-BC229038  Geranium incanum var. multifidum R. E. Riefner, Jr. 2007-4-28 07 -189 Orange City of Newport Beach, Newport Bay, North Star Beach, vicinity of Morning Star Ln. 1 Comment
  UCR219853  Gilia angelensis Fred M. Roberts 1999-4-26 5199 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Cyn and the wash, 1.4 km SE Silverado School, 2.7 km north Bolero Lookout 358 Comment
  SEINET6099462  Gilia capitata Unknown 1944-6-4 1365 Orange Elsinore Mountain. Lookout at top. Roadside. Comment
  RSA699133  Gilia clivorum J. R. Bruff 1927-3-16 2 -N Orange 1 mi. N.E. of Country Club. Comment
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Sep 20 2011
  RSA698352  Gilia multicaulis Dorothy Sammis s.n. Orange Santa Ana Canyon. Comment
  RSA552949  Githopsis diffusa subsp. candida Fred M. Roberts 1989-4-20 4293 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
  UCR241903  Glebionis coronaria Fred M. Roberts 2012-4-24 7521 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
  CAS-BOT-BC303650  Glebionis coronaria Helen D. Geis 1902-1-1 538 Orange Santiago Creek Comment
  RSA612342  Glycyrrhiza lepidota L. C. Wheeler 1932-7-9 942 Orange Santa Ana River 5 miles below Prado. 152 Comment
  RSA0036807  Gnaphalium californicum Darren Day, Hal Willis 1984-4-28 002 Orange At the side of Laguna Canyon Rd. exactly 2.5 miles outside of the city limits, heading north. Comment
  RSA736570  Gnaphalium californicum Keith E. Hoffmaster 1935-4-14 606 Orange Live Oak can. Comment
  UCR193049  Gnaphalium californicum A. C. Sanders, Mitch Provance 2008-5-20 35411 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR209658  Gnaphalium californicum Fred M. Roberts 2008-5-16 6986 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve north of Marguerita Drive, 0.5 km west-northwest of the Marine Institute, Dana Point Harbor 75 Comment
  UCR103790  Gnaphalium canescens subsp. microcephalum Scott D. White 1997-2-19 4697 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  POM196473  Gnaphalium chilense J. T. Howell 1927-10-29 3183 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA683220  Gnaphalium leucocephalum Scott D. White, Matt Carlton 2003-11-20 9874 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  UCR138408  Gnaphalium leucocephalum Scott D. White, Brian Leatherman 1997-6-12 5342 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  RSA0022433  Gnaphalium microcephalum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49791 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA734646  Gnaphalium palustre A. C. Sanders, T. B. Salvato 2008-5-13 35360 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR190987  Gnaphalium stramineum A. C. Sanders, Fred M. Roberts 2008-4-22 34991 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  RSA0012753  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
  SD28098  Grindelia camporum Carl B. Wolf 1932-7-2 3810 Orange Opposite Olinda Pilgrim Church. Comment
  RSA17586  Grindelia camporum var. bracteosa C. B. Wolf 1936-7-8 8101 Orange Coast Hwy, Western end of Newport Bay. 9 Comment
  CAS-BOT-BC305207  Grindelia hirsutula Carl B. Wolf 1932-7-2 3810 Orange Olinda. Valencia Ave., opposite Olinda Pilgrim Church 152 Comment
  JEPS57260  Grindelia hirsutula L. R. Heckard and R. C. Bacigalupi 1968-5-8 1836 Orange on terrace back of ocean just n of Doheny Beach Park Dana Point Comment
  UC536899  Grindelia hirsutula Lawrence M. Booth 1932-5-24 1092 Orange Newport Bay Comment
  RSA594898  Guillenia lasiophylla Fred M. Roberts 1995-5-19 4943 Orange Santa Ana Mtns, San Juan canyon, S of California, Route 74, 2.3km WSW lower San Juan Picnic Ground. 512 Comment
  CDA6157  Guizotia abyssinica Robert L. Pope 1967-6-13 Orange 0 Comment
  RSA788243  Gutierrezia bracteata R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49629 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  CAS-BOT-BC140500  Gutierrezia californica Dick Newell; Don Millar 2010-8-31 033 Orange Peninsular Range; Santa Ana Mtns. Foothills: Edison Road above Irvine Lake, 0.9 miles west of Black Star Canyon Rd. 412 Comment
  LA97587  Gutierrezia californica David S. Verity; 1974-2-20 sn Orange hills behind South Laguna Comment
  RSA735171  Gutierrezia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35288 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR230841  Gutierrezia californica Dick Newell, Don Millar, Shara Harris 2011-6-21 184 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 207 Comment
  CAS-BOT-BC302136  Gutierrezia sarothrae John Thomas Howell 1927-9-24 3111 Orange Hills on n. side of Santa Ana Canon [Canyon] 213 Comment
  CAS-BOT-BC302138  Gutierrezia sarothrae John Thomas Howell 1927-7-22 2816 Orange In hills on north side of Santa Ana Canon [Canyon] 182 Comment
  SEINET10605899  Hainardia cylindrica Alan A. Beetle 1942-4-19 Beetle 3092 Orange 20 miles south of Santa Ana, road to Laguna, heavy clay mud of back beach. Comment
  RSA752819  Haplopappus menziesii A. C. Sanders, Fred M. Roberts 2008-8-7 35975 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  HSC5758  Haplopappus venetus J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  RSA0066588  Harpagonella palmeri Fred M. Roberts, Carol A. Roberts, Dave Bontrager 1990-4-28 4587 Orange Rancho Mission Viejo: Christianitos Canyon, 4.0 km E Playa Survey Marker. 174 Comment
  NY387959  Hasseanthus elongatus L. Abrams 06 1901 1785 Orange San Joaquin Hills. Comment
  SD42290  Hedypnois cretica C. B. Wolf 1938-5-2 9406 Orange Fullerton, Francis Street, 1200 block, east side in vacant lot 60 Comment
  UCR158031  Hedypnois cretica Adrian Wolf 1998-5-15 287 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  CAS-BOT-BC306303  Hedypnois cretica E. K. Balls 1955-4-4 20433 Orange Mouth of Santa Ana River, w. bank, Hwy. 101 3 Comment
  RSA184081  Hedypnois cretica I. L. Wiggins 1966-3-31 20572 Orange Grazed field along south side of Brea Olinda Boulevard, near Carolina Avenue. Comment
  UCR241917  Helianthemum scoparium Fred M. Roberts 2012-5-10 7565 Orange San Joaquin Hills, Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km north of Pelican Hill summit 183 Comment
  SEINET156042  Helianthus annuus Norman C. Cooper 1944-6-4 1366 Orange Elsinore Mtn. Lookout at top. 1067 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
  IRVC14734  Helianthus gracilentus A. S. Boughey 1968-7-9 401 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  SD140191  Helianthus gracilentus B. Pitzer 1992-5-27 1963 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 miles (airline) west of El Cariso Campground. 762 Comment
  JEPS67987  Heliotropium curassavicum Alice King May 1908 Orange near Santa Ana <R. ?> Newport Comment
  UC480651  Heliotropium curassavicum Louis C. Wheeler 1931-8-16 Orange Santa Ana R. Canyon 152 Comment
  UCR195005  Heliotropium curassavicum A. C. Sanders, Fred M. Roberts 2008-8-7 35983 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
  POM3866  Heliotropium curassavicum var. oculatum Lois Clency 1914-07 s.n. Orange Laguna. 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
  POM369735  Heliotropium curassavicum var. oculatum Claire Kibbe 1936-07 19964 Orange Santa Ana Canyon. Comment
  IRVC786  Hemizonia fasciculata C. Thompson 1965-5-4 Orange Corona del Mar, Corona Highlands. Newport Beach Comment
  POM360277  Hemizonia fasciculata L. C. Wheeler 1932-6-25 861 Orange Newport Bay. 6 Comment
  RSA682919  Hemizonia paniculata Scott D. White, Amanda Duchardt 2003-5-1 9147 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  UCR98777  Hemizonia parryi subsp. australis C. S. Jones, W. Loeffler 1996-9-16 13 Orange Seal Beach, Hellman Ranch Site, located west of Seal Beach Boulevard, south of Los Alamitos Retarding Basin, east of Haines Cooling Channel, and north of Gum Grove Park Comment
  CAS-BOT-BC403799  Hesperocnide tenella Steve Boyd; Tim Ross 1992-5-19 7440 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon 335 Comment
  SD40680  Hesperocyparis forbesii Carl B. Wolf 1935-1-2 Orange Santa Ana Mountains, slopes of Sierra Peak, west of Claymine Canyon along road to peak 669 Comment
  CAS-BOT-BC143752  Heteromeles arbutifolia P. Everett; E. R. Johnson 1937-11-30 9380 Orange Santa Ana Mts., Bold Meadow at head of Claymine Canyon on slopes of Sierra Peak 762 Comment
  UC527322  Heteromeles arbutifolia Carl B. Wolf and B. D. Stark 1932-12-19 Orange 0.5 mi from Skyline Drive (on firebreak road to Sierra Peak); Santa Ana Mts. 762 Comment
  SEINET2052420 Image available Heterotheca grandiflora Cesareo Perez 1971-5-12 Orange Huntington State Beach, Pacific Coast Highway at Brookhurst, Huntington Beach. Comment
  UCD150987  Heterotheca grandiflora D. S. Park 2010-4-25 32 -2 Orange Whiting Ranch Wilderness Park, along trail. 226 Comment
  UCR193773  Heterotheca grandiflora A. C. Sanders, Fred M. Roberts 2008-7-3 35697 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
  CAS-BOT-BC318907  Heterotheca grandiflora Ira L. Wiggins 1966-3-16 20523 Orange Near Orange County refuse dispoasl area Comment
  RSA0074432  Heterotheca grandiflora James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Station #1. Comment
  UCD133033  Heterotheca grandiflora W. G. Watkins 1936-3-10 s.n. Orange Orange. Comment
  UCR193928  Heterotheca sessiliflora A. C. Sanders, Fred M. Roberts 2008-7-16 35848 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon 325 Comment
  UC537029  Heterotheca sessiliflora subsp. echioides Lawrence M. Booth 1932-7-29 1330 Orange Newport Lagoon Comment
  CHSC26373  Heterotheca sessiliflora subsp. fastigiata James Henrickson 1970-9-5 Orange 2 1/2 miles NW of Huntington Beach; in northern part of Bolsa Chica Salt Marsh. 0 Comment
  RSA751403  Hieracium argutum R. E. Riefner Jr. 2008-6-3 08 -136 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, E fork Fremont Canyon, Black Star SCE Rd. 641 Comment
  RSA746044  Hirschfeldia incana Duy Nguyen 2006-2-4 1 Orange Southern Coastal: San Joaquin Marsh; NW Edge of Marsh 5 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
  POM2592  Holodiscus discolor Philip A. Munz 1918-5-4 2218 Orange Laguna Beach. Comment
  RSA172273  Holodiscus discolor Robert F. Thorne 1963-7-26 32851 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Cleveland National Forest. 732 Comment
  CAS-BOT-BC150010  Holodiscus discolor var. discolor P. C. Everett 1935-6-18 7221 Orange Santa Ana Mts., summit of Santiago Pk. 1731 Comment
  RSA599591  Hordeum intercedens Fred M. Roberts, Nigel Hancock 1995-5-25 4946 Orange Costa Mesa: Fairview Park, just west of end of Canyon Drive, 0.1 km W Canyon School., UTM Z11 37 24 600mN, 4 12 700mE 24 Comment
  RSA642527  Hordeum intercedens D. E. Bramlet 1998-5-25 2627 Orange 120m north of the Newport Beach Library and 61m west of McArthur Blvd. 914m south of San Miguel Drive., Laguna Beach 7.5 USGS Quadrangle. UTM 11S 04 19 210m E X 37 18 860m N. Eleation 49 m. 15 Comment
  RSA688972  Hordeum intercedens Fred M. Roberts 2003-3-27 5633 Orange Rancho Mission Viejo; Donna O'Neill Land Conservancy, western slopes of Cristianitos Cyn., 0.46km N Sycamore Gate, 0.16km W Cristianitos Rd. 128 Comment
  UCR150375  Hordeum intercedens D. E. Bramlet 1998-5-19 2620 Orange Coastal Plains & Basins/Los Angeles Basin region, San Juan Hills: 1.13 km west of La Pata Ave. and 1.22 km N of Prima Deshecha Canada. A ridgeline 213 m east of a small canyon 152 Comment
  UCR158161  Hordeum intercedens Adrian Wolf 1998-4-25 154 Orange South Coast, San Joaquin Hills, west Bommer Canyon ridge, 1 km NW of Signal Peak, 3 km east of San Joaquin Reservoir 287 Comment
  RSA542369  Hordeum marinum subsp. gussoneanum Fred M. Roberts, Kathy Keane 1988-5-25 3988 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark: UTM 3710250m N, 443600m E 82 Comment
  UCR207196  Hordeum murinum subsp. leporinum O. F. Clarke 2002-5-22 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  UCR99555  Hordeum murinum subsp. leporinum B. G. Pitzer 1996-4-30 2799 A Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA789353  Horkelia cuneata subsp. puberula Naomi S. Fraga, Duncan S. Bell 2009-5-11 2720 Orange Chiquita Trail 762 Comment
  RSA759250  Hulsea heterochroma Robt Allen, G. Victor Leipzig 2008-6-20 s.n. Orange Upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs Forest Gate, 0.8 road miles down from junction with Main Divide Truck Trail. Southwestern end of short road spur. 1313 Comment
  OBI74741  Hypericum canariense Unknown 2010-6-9 Oct- 52 Orange City of San Juan Capistrano, along McKraken View Trl at San Juan Crk rd, E of I-5 fwy 51 Comment
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May 28 2015
  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
  UCSB47577  Hypochaeris glabra Roberts, Jr., Fred 1980-4-3 Orange San Juan Canyon, Hwy. 74, entrance to lower San Juan Picnic Grounds, Santa Ana Mtns. 409 Comment
  RSA783567  Isocoma J. D. Olmsted 1959-5-1 519 Orange 500 yards west of Oat Flat past Johnson's dam; 9 mi. SW of Corona. 793 Comment
  UCR271002  Isocoma menziesii Mitch Provance, Travis Kegel 2016-4-8 416- 61 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
  RSA0050275  Isocoma menziesii var. menziesii Fred M. Roberts 2012-9-6 7694 Orange SAN JOAQUIN HILLS: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 km WNW Pelican Hill summit. 37 Comment
  POM201745  Isocoma menziesii var. vernonioides L. M. Booth 1932-6-29 1225 Orange Newport Bay Comment
  POM294112  Isocoma menziesii var. vernonioides Lyman Benson 1946-7-8 12105 Orange Corona del Mar. 15 Comment
  UC221420  Isocoma menziesii var. vernonioides F. M. Reed 1917-7-1 3918 Orange bluffs at Laguna Laguna Comment
  RSA697044  Isocoma veneta var. vernonioides Keith E. Hoffmaster 1927-10-9 s.n. Orange Santa Ana. Comment
  CSUSB713  Isomeris arborea R. P. Sunderman 1968-5-11 Orange Beach just south of Corona del Mar Comment
  RSA702688  Isomeris arborea Scott D. White, Michael Honer 2004-5-17 10395 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
  UCR96319  Isomeris arborea B. G. 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
  UCR239636  Isomeris arborea var. arborea Fred M. Roberts 2012-4-24 7504 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
  UCR247919  Iva hayesiana Fred M. Roberts 2012-7-18 7670 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
  UC537018  Jaumea carnosa Lawrence M. Booth 1932-6-9 1183 Orange Newport Bay Comment
  RSA588852  Jepsonia parryi Fred M. Roberts Jr. 1989-11-7 4451 Orange Rancho Mission Viejo: TRW Lease Holding, ridge south of the confluence of Gabino and Blind Canyons, 5.0 km NE Clemente Survey Marker 155 Comment
  UC112092  Juglans E. B. Babcock 1907-9-9 Orange on ranch of E.S. Ware 1 mi n Garden Grove Comment
  UC112095  Juglans E. B. Babcock 1907-9-9 Orange on ranch of E.S. Ware 1 mi n Garden Grove Comment
  CAS-BOT-BC101920  Juglans californica Ira L. Wiggins 1966-5-11 20660 Orange Carbon Canyon, about 1 mile above its mouth Comment
  CHSC116494  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
  RSA0011065  Juglans californica Lyman Benson 1947-4-27 12340 Orange Carbon Canyon. Mr. Range: Puente Hills; Drainage area: Pacific Slope. 244 Comment
  SEINET13942201 Image available Juglans californica Kay Raeder 1955-1 492 Orange Flying Cow Ranch, San Jose Hills Mt. Range, Pacific Coast drainage area, north slope. 850 ft. 259 Comment
  UC1135934  Juglans californica var. californica A. Lewis Mar 1934 356 Orange Brea Canyon Corona Quadrangle 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
  UCR61558  Juncus Jeri Hirshberg 1988-7-13 s.n. Orange Santa Ana Mtns., Lower Blind Canyon, 1-2 mi above Santiago Reservoir Comment
  OBI2855  Juncus acutus subsp. leopoldii L. Neuenschwander 1970-8-20 63 Orange Ca. 4 mi S of Seal Beach, NE of Pacific Coast hwy at Bolsa Chica Salt marsh 0 Comment
  UC842095  Juncus acutus subsp. leopoldii Louis C. Wheeler 1932-6-25 869 Orange inlet arm of Newport Bay Newport Bay 0 Comment
  UC917900  Juncus acutus subsp. leopoldii Frank W. Gould 1944-4-30 2330 Orange 2 mi sw Huntington Beach Comment
  RSA703734  Juncus arcticus Fred M. Roberts, David E. Bramlet 2004-11-5 6123 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Cristianitos Cyn., along creek, 0.73km N Sycamore Gate and 0.10 km W Cristianitos Road. 122 Comment
  UCR193797  Juncus balticus A. C. Sanders, Fred M. Roberts 2008-7-3 35706 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA799620  Juncus bufonius Justin M. Wood 2011-4-12 3654 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA678522  Juncus bufonius var. bufonius Fred M. Roberts, M. Lee, Kristen Szabo 2001-4-13 5427 Orange Rancho Mission Viejo: South of San Juan Creek, 0.6km WNW Median Rancho Survey Marker. PCR Vernal Pool 2. 183 Comment
  SEINET3880056  Juncus macrophyllus A. C. Sanders, Fred M. Roberts 2008-7-16 35859 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hangmans Tree Canyon (El Toro 7.5' Q).; 0 395 Comment
  UCSB47985  Juncus macrophyllus Roberts, Fred 1980-6-25 Orange Santa Ana Mtns; San Juan Canyon below Calif. Rte. 74; 2.4 km ENE San Juan Guard Station; 0.3 km WSW BM 1100 290 Comment
  POM202728  Juncus mexicanus L. M. Booth 1932-6-4 1153 Orange Newport Lagoon. Comment
  RSA6061  Juncus mexicanus E. R. Johnson 1932-5-5 3702 Orange Santa Ana River, Rancho Santa Ana 122 Comment
  RSA368294  Juncus oxymeris F. R. Fosberg 1931-6-21 S- 5152 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA0014060  Juncus rugulosus Fred M. Roberts, R. E. Riefner 2010-5-30 7134 Orange Lomas de Santiago: Loma Ridge, Hanging Man s Tree Cyn., along Hanging Man s Tree Cyn. Rd., c.a. 0.4km W Santiago Cyn. Rd., and 1.2 km N Bolero Lookout. 372 Comment
  RSA603360  Juncus rugulosus Scott D. White 1997-6-12 5317 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  RSA699683  Juncus rugulosus Keith E. Hoffmaster 1935-4-14 s.n. Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. 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
  UCSB47990  Juncus rugulosus Roberts, Fred 1980-6-25 Orange Santa Ana Mtns; San Juan Canyon below Calif. Rte. 74; 2.4km ENE San Juan Guard Station; 0.3 km WSW BM 1100 290 Comment
  SEINET3282755 Image available Juncus textilis A. C. Sanders, Fred M. Roberts 2008-7-16 35855 Orange Peninsular Range; Santa Ana Mtns.; Lomas de Santiago, upper Hangmans Tree Canyon. 395 Comment
  JEPS67112  Juncus torreyi S. B. Parish and W. F. Parish Oct 1882 1593 Orange Orange Comment
Read comments
Jul 18 2010
  SEINET11788654  Juncus xiphioides J. F. Bright, Wyman, C. 1933-1 8210 Orange valleys back of La Guna Beach Comment
  RSA702804  Juniperus californica D. E. Bramlet, F. M. Roberts 2003-3-27 3360 Orange Donna O Neill Reserve. S facing slope of tributary to Cristianitos Cyn., 335 m W of Cristianitos Rd. & 428m NW Ford Rd. 136 Comment
  SEINET10932780  Juniperus chinensis Charlene A. Bennett 1976-7-21 Bennett 438 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  UCR162050  Juniperus deppeana var. pachyphlaea Robert DeRuff 2001-1 528 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, near the UCI rowing center at Shellmaker Island 3 Comment
  RSA5279  Keckiella antirrhinoides B. D. Stark 1932-12-15 1701 Orange Rancho Santa Ana, slope above grove #4. 145 Comment
  RSA659545  Keckiella antirrhinoides P. Shirokawa 1998-5-7 17 Orange Cleveland National Forest- Trabuco Ranger District, 0.35 miles from Ortega Highway (State Highway 74) on North Main Divide Road 823 Comment
  RSA740  Keckiella antirrhinoides J. T. Howell 1927-6-5 33 Orange Rancho Santa Ana, near east boundary. 152 Comment
  UC1280772  Keckiella antirrhinoides H. E. McMinn 1935-6-22 3920 Orange e base of n end Santa Ana Mountains 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
  CAS-BOT-BC235721  Keckiella cordifolia Peter Kamb Ray 1948-6-19 1100 Orange Holy Jim Canyon, Santa Ana Mountains 609 Comment
  LA105129  Keckiella cordifolia David C. Michener; 1980-7-14 3704 Orange Santa Ana Mountains, Starr Ranch Audubon Sanctuary, Crow Creek, ca. 1.3 mi N of confluence with Bell canyon Comment
  RSA293306  Keckiella cordifolia D. C. Michener 1980-7-14 3704 Orange Starr Audubon Sanctuary. Riparian woodland margin in Crow Creek ca. 1.3 mi. north of jct along Bell Canyon. 250 Comment
  RSA736148  Keckiella cordifolia Rosemarie Zimmermann 1963-6-8 280 Orange Off State Hwy 18, on Oak Ridge Estates Rd. About 7 mi. E. of Hwy 101and El Toro. Near O'Neil Park. 610 Comment
  UCR193341  Keckiella cordifolia A. C. Sanders, Fred M. Roberts 2008-6-17 35460 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCR250867  Keckiella cordifolia Dick Newell, Judy Booth 2014-4-27 366 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Road 0.8 mi. ENE of lower gate 632 Comment
  UCR27507  Keckiella cordifolia T. P. Krantz 1981-6-18 s.n. Orange Santa Ana Mtns, Main Divide Truck Trail near the head of the canyon Comment
  RSA7393  Keckiella ternata subsp. ternata Carl B. Wolf 1933-8-24 5405 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  RSA761793  Keckiella ternata subsp. ternata Robert Allen 2003-6-22 12295 Orange Northeastern flank of Santiago Peak, along North Main Divide Road. 1506 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
  CHSC109274  Kickxia elatine Scott D. White; Matt Carlton 2003-11-20 9866 Orange Santa Ana Mountain 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
  UCR191423  Koeleria macrantha A. C. Sanders, Fred M. Roberts 2008-4-8 34773 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
  IRVC29794  Koelreuteria paniculata Mark A. Elvin, Dean Kelch 2006-12-9 5320 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA0027432  Lactuca serriola Fred M. Roberts 2013-7-18 7666 Orange San Joaquin Hills: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill. 52 Comment
  RSA752818  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-8-7 36001 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA759155  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-6-17 35457 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCR193005  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-6-17 35457 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  RSA12634  Lactuca serriola C. B. Wolf 1934-8-16 6065 Orange Bryant Ranch E of Long Beach, Bixby Ave 100 ft and E of SW corner NW/4 NE/4, S31. 6 Comment
  UCSB57086  Lagophylla ramosissima Roberts, Jr., Fred 1985-7-26 Orange Santa Ana Mtns.; Main Divide Truck Trail, 0.5 km. N Blue Jay Campground; 2.2 km. ESE Los Pinos Pk., UTM 3724000m N, 45827m E 1005 Comment
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Feb 22 2019
  UCSB47627  Lamarckia aurea Roberts, Fred 1980-4-3 Orange Hills, 1.5 km. ENE Dana Hills High School, Dana Point 85 Comment
  RSA708014  Lantana camara Scott D. White, Jennifer H. Jones 2005-3-31 10854 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 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
  CAS-BOT-BC329172  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1932-3-8 2691 Orange Sunset Beach, near southern limits of city 1 Comment
  RSA0013584  Lasthenia glabrata subsp. coulteri D. E. Bramlet 2008-4-3 4150 Orange Bee Cyn. Bowerman landfill site. 1.1km south of the Bee Cyn. access road & 35m west of the active landfill, on grade fill slope. Comment
  UC718548  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1935-3-24 6295 Orange Comment
  RSA2082  Lasthenia gracilis C. B. Wolf 1931-3-6 1847 Orange Trabuco Canyon, 1 mile above Trabuco Oaks, W slope of Santa Ana Mts 518 Comment
  RSA627758  Lasthenia gracilis Scott D. White 1998-3-24 6230 Orange University of California, Irvine Campus: Site of proposed Research Park. Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 36 Comment
  RSA92917  Lasthenia gracilis F. W. Peirson 1924-5-31 4667 Orange 5 miles southeast of Laguna Beach. Comment
  RSA12902  Lathyrus vestitus subsp. alefeldii P. C. Everett 1935-2-10 6292 Orange At base of West Ladd Trick Trail, mouth of Baker Canyon, Santa Ana Mountains 335 Comment
  IRVC11716  Lathyrus vestitus subsp. laetiflorus B. T. Gittins 1963-4-18 171-D Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA405709  Lathyrus vestitus subsp. laetiflorus E. Crow 1929-2-22 164 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  RSA518451  Lathyrus vestitus subsp. laetiflorus Dorothy Tilforth, C. W. Tilforth 1977-3-6 1253 Orange Small canyon W of Gypsum Canyon, S side of Santa Ana River 152 Comment
  RSA794333  Lavandula dentata Justin M. Wood 2010-3-31 1451 Orange Santa Ana Canyon: Chino Hills State Park property just west of Green River Golf Course on bluff south of the river. 131 Comment
  UCR17212  Lavatera cretica Emily Carlton 1966-4-18 51 Orange Pacific coast, Laguna Beach, corner of Agate and Santa Cruz Streets. 30 Comment
  IRVC22071  Layia platyglossa Fred M. Roberts, D. A. Roberts 1983-3-22 934 Orange San Juan Canyon, above Hwy 74, 2.7km ENE San Juan Guard Sta.; 3.6km SSW Sugar Loaf Pk., Santa Ana Mountains 407 Comment
  RSA649069  Layia platyglossa D. E. Bramlet 2000-4-17 2984 Orange West of Blind Cyn. and North of Irvine Park. The site is 2 km west of Blind Canyon and 305m north of Irvine Park. This locality is 183m southwest of the MWD access road. 220 Comment
  CAS-BOT-BC534382  Lemna gibba Mr. M. F. Braolshane 1904-8-1 s.n. Orange Arch Beach Comment
  RSA0054938  Leonotis leonurus R. Engel 1934-10-10 s.n. Orange Santa Ana. Comment
  IRVC16187  Lepechinia cardiophylla Gordon A. Marsh, Karlin G. Marsh 1978-5-13 s.n. Orange Santa Ana Mtns: Claymine Canyon; road to Coal Canyon Peninsular Ranges 433 Comment
  RSA300978  Lepechinia cardiophylla D. C. Michener 1982-8-4 4167 Orange Formerly disturbed area above main divide road ca 1/4 mile southeast of Beeks Place [5.9 miles west of jct of Chase & Skyline in Corona, off of latter].West side of divide above Tin Mine Canyon. 915 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
  POM202604  Lepidium lasiocarpum L. M. Booth 1932-5-24 24 Orange Newport Bay Comment
  IRVC1102  Lepidium lasiocarpum C. Hooven 1965-4-1 Orange Jamboree Rd. Newport Beach Comment
  UC494728  Lepidium lasiocarpum var. lasiocarpum Philip A. Munz 1932-3-29 12191 Orange Costa Mesa Comment
  SD236245  Lepidium latifolium A. C. Sanders, Fred M. Roberts 2008-9-18 36090 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon ca. 0.5-0.8 miles above the highway bridge (El Toro 7.5'Q) 299 Comment
  SD28156  Lepidium nitidum Carl B. Wolf 1932-2-15 2658 Orange Rancho Santa Ana Botanic Garden near the Tan Oak Beds 185 Comment
  SEINET7072489  Lepidium nitidum A. G. Vestal 1963-3-27 s.n. Orange About 1.8 miles up Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  UCR102019  Lepidium nitidum B. G. Pitzer 1997-3-25 3026 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, along the bike trail 30 Comment
  IRVC1108  Lepidium nitidum B. Mawdsley 1965-3-24 Orange Corona del Mar, Narcissus and 5th. Newport Beach Comment
  RSA184171  Lepidium nitidum I. L. Wiggins 1966-2-12 20431 Orange N. side of La Palma Ave. near Harbor Blvd., Anaheim. Comment
  RSA699586  Lepidium nitidum J. R. Bruff s.n. Orange Modjeska s Home Comment
  RSA681012  Lepidium nitidum var. nitidum Fred M. Roberts, D. E. Bramlet 2003-3-13 5583 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 207 Comment
  CAS-BOT-BC12775  Lepidium oxycarpum Carl B. Wolf 1935-3-24 6296 Orange 1 mile north of Buena Park (valley to west of west Coyote Hills). 53 Comment
  JEPS53733  Lepidium perfoliatum R. H. Holland 1913-5-15 Orange Orange Comment
  POM180152  Lepidium pinnatifidum J. Ewan 1931-7-31 4759 Orange Smeltzer Comment
  RSA734768  Lepidium strictum A. C. Sanders, T. B. Salvato 2008-5-13 35331 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
  CAS-BOT-BC60081  Lepidium virginicum var. menziesii John Thomas Howell 1927-6-20 2559 Orange On north side of Santa Ana Canyon. 228 Comment
  CAS-BOT-BC60082  Lepidium virginicum var. menziesii John Thomas Howell 1927-6-21 2561 Orange North side of Santa Ana Canyon. 152 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
  UCD134015  Lepidospartum squamatum J. C. Elmore 1929-10-1 2165 Orange orange. Comment
  UCR240094  Lepidospartum squamatum Dick Newell, Judy Booth 2012-11-11 309 Orange Peninsular Range; Santa Ana Mtns., Irvine, just east of eastern edge of Irvine Regional Park, east of Peters Canyon Rd. 189 Comment
  HSC79611  Leptochloa fusca subsp. uninervia James Henrickson 1972-10-21 8059 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave., just N of Santa Ana River. 61 Comment
  RSA731934  Leptochloa fusca subsp. uninervia Fred M. Roberts, Sandy Leatherman 2007-11-27 6676 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  CDA32435  Leptochloa uninervia D. G. Kelch 2006-12-9 6 .552 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  UCR230226  Leptodactylon californicum Dick Newell, Don Millar 2011-3-15 084 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash along Limestone Cyn. Rd. 252 Comment
  RSA12929  Leptosiphon androsaceus C. B. Wolf 1935-4-7 6319 Orange Mouth of San Juan Hot Springs Canon, at san juan Hot Springs 213 Comment
  RSA17141  Leptosiphon floribundus C. B. Wolf 1936-6-17 7951 Orange Long Ortega Highway San Juan Canyon, 5/10 mi. e. of Orange Co. Line Riverside 366 Comment
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Aug 10 2014
  UCD169759  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. 891 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
  UC1618069  Leptosiphon parviflorus Donald G. Nelson 1935-7-6 203 Orange San Juan Canyon Comment
  UCR241909  Lessingia filaginifolia Fred M. Roberts 2012-5-10 7567 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km north of Pelican Hill summit 154 Comment
  JEPS71200  Leymus triticoides L. M. Booth 1932-6-7 1156 Orange Newport Bay Comment
  RSA0011628  Leymus triticoides Rankin s.n. Orange Santa Ana Comment
  UC1873112  Limonium R. E. Riefner Jr. 2006-8-13 06 -391 Orange salt marsh with Salicornia; Coastal Salt Marsh 8 Comment
  CDA23090  Limonium binervosum Mark A. Elvin, D. G. Kelch 2006-12-9 5307 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA401667A  Limonium californicum F. R. Fosberg 1931-8-19 7284 Orange Newport Bay. 0 Comment
  UC1789094  Limonium duriusculum R. E. Riefner Jr. 2005-9-9 05 -664 Orange City of Lake Forest, along Aliso Creek near Portola Pkwy, at El Toro Road. 225 Comment
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Jul 5 2010
  RSA161163  Limonium perezii Peter H. Raven 1957-9-28 11394 Orange Laguna Beach. Comment
  UCR261695  Limonium perezii Dick Newell, Don Millar, Judy Booth 2015-4-15 402 Orange South Coast, city of Newport Beach, North Star Beach, 90 yards NE of Newport Aquatic Center bulding 3 Comment
  SEINET6045534  Linanthus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon. Cleveland National Forest. 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
  SD41252  Linanthus californicus Darley F. Howe 1946-6-3 Orange Santa Ana Mountains Comment
  RSA1925  Linanthus californicus B. D. Stark 1931-3-12 1087 Orange Santa Ana Mountains, 3 miles north of Modjeska's home 305 Comment
  SD247694  Linanthus californicus R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49691 Orange Northern Santa Ana Mountains; Sierra Peak. 900 Comment
  JEPS89271  Linanthus dianthiflorus Rimo Bacigalupi and L. Heckard, P. C. Hutchison 1962-3-16 8233 Orange 2 mi n Doheny Beach State Park (fields above ocean) Comment
  RSA697071  Linanthus dianthiflorus Keith E. Hoffmaster 1927-4-2 801 Orange Santa Ana Mnts. 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
  UC729649  Linanthus floribundus subsp. glaber E. R. Johnson May 1932 Orange between Skyline Drive and Santiago Peak; Santa Ana Mts. 1219 Comment
  RSA773515  Linaria canadensis var. texana Fred M. Roberts 1999-5-3 5205 Orange Lomas de Santiago: ridge between Limestone Canyon and Santiago Canyon Wash, 0.4 km SE Silverado School, and 3.9 km Bolero Lookout 351 Comment
  UC1419828  Lindernia dubia var. anagallidea G. D. Barbe 1973-8-9 1693 Orange Santa Ana (Tustin); Bordier's Nursery, 7231 Irivne Blvd Comment
  UCR140881  Lippia nodiflora var. rosea Robert DeRuff 1983-7-23 293 Orange Southern Coast, Newport Beach, Newport Back Bay, Big Canyon where Back Bay Drive crosses the small stream 8 Comment
  RSA735256  Lithophragma affine J. Vlahos 1934-4-16 s.n. Orange Black Star Canyon. Comment
  UCSB47587  Lithophragma affine Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, 1.9km WNW of Trabuco Peak, Santa Ana Mountains 1250 Comment
  IRVC1112  Lobularia maritima M. McCartin 1965-5-2 Orange San Juan Capistrano. Southern Coastal Comment
  IRVC1115  Lobularia maritima D. W. Bryant 1965-4-4 Orange Santa Ana and 22nd. Newport Beach Comment
  UCR267210  Logfia arizonica Fred M. Roberts, Megan Lulow 2009-3-18 7135 Orange Santa Ana Mtns., LOMAS DE SANTIAGO: Loma Ridge, Lower Hicks Canyon, about 350 meters from south side of Haul Road, 1.9 km E Rattlesnake Cyn. Reservoir Dam and 2.1 km W Bee Peak 172 Comment
  UC729881  Lolium multiflorum Carl B. Wolf 1932-7-7 3858 Orange Bryant Ave., at pump house 1/2 e, Bryant Ranch, ne corner S.E.160 of Sect.30 Los Alamitos Blvd. Comment
  RSA699306  Lolium perenne subsp. multiflorum Keith E. Hoffmaster 1927-5-26 107 Orange Santa Ana Comment
  RSA650633  Lolium perenne var. multiflorum Daniel Truong 1991-5-5 3 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  POM265762  Lolium temulentum J. C. Roos 1937-5-21 2068 Orange Lemon Heights Comment
  RSA0011620  Lolium temulentum Rankin s.n. Orange Costa Mesa. Comment
  RSA0048656  Lomatium dasycarpum Keith E. Hoffmaster 1934-4-22 190 Orange Santa Ana Mts. [Orange or Riverside County] Comment
  RSA488121  Lomatium dasycarpum subsp. dasycarpum Fred M. Roberts, K. G. Marsh 1984-2-15 1193 Orange Caspers Regional Park: South rim of Lucas Cyn., 3.6 km NE Visitor Center; 0.7 km WNW Lucas Survey Mark 360 Comment
  RSA751165  Lomatium lucidum D. E. Bramlet 2008-5-9 4267 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
  RSA648192  Lonicera subspicata var. denudata Karl Price 1988-5-7 31 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  RSA788249  Lonicera subspicata var. johnstonii R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49625 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  IRVC15130  Lotus heermannii var. heermannii A. S. Boughey 1968-7-9 383 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA754059  Lotus purshianus A. C. Sanders, Fred M. Roberts 2008-7-16 35854 Orange Lomas de Santiago, upper Hangmans Tree Canyon. 395 Comment
  UC1607985  Lotus purshianus var. purshianus Donald G. Nelson 1935-7-5 345 Orange E. Elm St. Brea (along roadside in dry hayfield) Comment
  RSA697974  Lotus salsuginosus H. Dittmer 1932-5-16 s.n. Orange Road to Irvine Dam Comment
  UC1129145  Lotus scoparius A. Lewis 1934-3-1 346 Orange San Juan Hills Corona Quad. 396 Comment
  UC537008  Lotus scoparius Lawrence M. Booth 1932-5-12 1025 Orange Newport Bay Comment
  IRVC22181  Lotus scoparius subsp. scoparius Fred M. Roberts 1985-4-8 1640 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  RSA406317  Lotus strigosus M. B. Dunkle 1935-3-3 4349 Orange San Juan Canyon. 457 Comment
  RSA753164  Lotus strigosus D. E. Bramlet 2008-4-1 4146 Orange Ridgeline in Upper Hicks Canyon, 162m S of the Haul Road. 346 Comment
  UCR191322  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-4-8 34746 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 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
  RSA0034697  Lotus strigosus M. B. Dunkle 1933-3-5 3087 Orange San Juan Canyon. 304 Comment
  CDA1047  Ludwigia peploides D. G. Kelch 2006-12-9 6 .561 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  SD175839  Ludwigia peploides D. G. Kelch 2006-12-9 06 561 Orange Irvine. University Drive along tidal Creek just east of Interstate 73. 9 Comment
  UCR138409  Ludwigia repens Scott D. White, Brian Leatherman 1997-6-12 5343 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  RSA698718  Lupinus albifrons L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. 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
  IRVC2290  Lupinus bicolor subsp. marginatus C. Weir 1965-5-9 HS 0424 Orange Newport Beach, [Newport] Back Bay. Southern Coastal Comment
  RSA787678  Lupinus bicolor subsp. marginatus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49713 Orange Northern Santa Ana Mountains: Sierra Peak 900 Comment
  RSA542581  Lupinus bicolor subsp. umbellatus Fred M. Roberts 1988-4-10 3904 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  SEINET10484966  Lupinus bicolor subsp. umbellatus Beauchamp 1972-3-24 BEAUCHAMP 3238 Orange On dry slopes at thirst, san clemente island. 600 Comment
  UC527218  Lupinus excubitus C. B. Wolf 1931-3-25 1936 Orange along the Santa Fe R.R. 1 mi w Esperanza (Santa Ana Canyon); Santa Ana Canyon 106 Comment
  SEINET10452686  Lupinus excubitus subsp. hallii Stark 1933-2-3 STARK 19497 Orange Garden #6455 (from 1780 many generations). Comment
  CAS-BOT-BC216692  Lupinus excubitus var. excubitus C. B. Wolf 1931-3-25 1936 Orange 1 mile W of Esperanza, Along the Santa Fe RR, Santa Ana Canyon 106 Comment
  RSA28730  Lupinus excubitus var. hallii R. S. Woglum 1938-5-8 1619 Orange Ortega Hwy, Santa Ana Mts Comment
  RSA798188  Lupinus excubitus var. hallii Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49597 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station Comment
  CHSC13495  Lupinus hirsutissimus T. N. Casale 1974-3-11 3 Orange On side of road, ca. 7.3 mi ne of the Mission San Juan Capistrano on Hwy 74. 243 Comment
  UC1129484  Lupinus hirsutissimus A. Lewis Mar 1934 373 Orange mouth of Ladd Canyon; Cleveland National Forest, Corona Quad. Comment
  LA205140  Lupinus latifolius var. parishii Norman C. Cooper; 1944-6-4 1336 Orange San Juan Canyon 548 Comment
  CAS-BOT-BC217748  Lupinus longifolius E. R. Johnson 1932-4-15 2956 Orange Rancho Santa Ana, 1 mi. NW of Roundtop (Section 16) 457 Comment
  POM2601  Lupinus longifolius Philip A. Munz 1918-5-4 2201 Orange Laguna Beach. Comment
  RSA0059076  Lupinus longifolius CNPS Accuracy Assessment Team 2014-5-7 7176 Orange Limestone Canyon. Comment
  RSA682918  Lupinus microcarpus Scott D. White, Amanda Duchardt 2003-5-1 9152 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  JEPS65473  Lupinus microcarpus var. microcarpus H. E. Malmsten 1928-4-27 Orange O Neill Ranch Comment
  SEINET6932686 Image available Lupinus nanus W. P. Vestal, A. G. Vestal 1955-3-24 3455 Orange Trabuco Canyon, ca. 5 miles east of El Toro. Comment
  UCSB50689  Lupinus sparsiflorus Phillips, B. 1980-5-3 Orange Highway 74, 0.3 miles east of the San Juan Guard Station 237 Comment
  RSA414282  Lupinus sparsiflorus subsp. sparsiflorus M. B. Dunkle 1933-3-5 3090 Orange San Juan Canyon. Comment
  IRVC24496  Lupinus succulentus Fred M. Roberts, Gordon Marsh 1986-2-28 2621 Orange Mission Viejo: N of Oso Parkway; 4.2km NNE Saddleback Community College. Southern Coastal 200 Comment
  RSA660287  Lupinus succulentus Orlando Mistretta 1992-6-2 454 Orange Vicinity of Sierra Peak. (Historical Locality). Comment
  UC1129752  Lupinus succulentus A. Lewis Mar 1934 348 Orange San Juan Hills; Corona Quad., San Juan Hills 396 Comment
  UCR100308  Lupinus succulentus B. G. Pitzer 1997-4-15 3146 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
  RSA732078  Lupinus truncatus A. C. Sanders, Fred M. Roberts 2008-3-25 34566 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UCSB21320  Lupinus truncatus Keefe, Joseph 1967-3-26 Orange South edge of Newport Bay; on Back Bay Drive; 2.0 miles northeast of intersection with Jamboree Drive; Corona del Mar 3 Comment
  IRVC2354  Lupinus truncatus D. Ibbetson 1965-4-19 s.n. Orange Newport Beach. Southern Coastal Comment
  SD248500  Lycium brevipes R. E. Jr. Riefner 2012-6-22 12 273 Orange City of Newport Beach, Corona del Mar, Little Corona Beach, vicinity of Poppy Ave. and Ocean Blvd. 3 Comment
  POM4193  Lycium californicum I. M. Johnston 1918-5-5 1949 Orange Laguna Beach. Comment
  RSA428835  Lycium californicum Freda Detmers 1929-5-12 s.n. Orange Capistrano Beach Comment
  RSA0014845  Lythrum californicum Scott D. White 1997-6-12 5315 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
  UCR193929  Lythrum californicum A. C. Sanders, Fred M. Roberts 2008-7-16 35843 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  CLARK-A1528-5622  Madia sativa John C. Roos 1960-5-30 Orange Santa Ana Mountains Comment
  CAS-BOT-BC206252  Malacothamnus fasciculatus C. B. Wolf 1931-7-25 1166 Orange Along the road at north side of the Pear Orchard, Rancho Santa Ana, Santa Ana Can. 121 Comment
  RSA433310  Malacothamnus fasciculatus M. B. Dunkle 1933-5-30 3581 Orange Santa Ana Canyon Comment
  RSA647941  Malacothamnus fasciculatus Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-1 17 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  RSA702686  Malacothamnus fasciculatus Scott D. White, Michael Honer 2004-5-17 10400 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
  RSA750004  Malacothamnus fasciculatus A. C. Sanders, Fred M. Roberts 2008-9-18 36064 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  OBI5977  Malacothamnus fasciculatus var. fasciculatus Carl B. Wolf 1931-7-25 2294 Orange N side of the Pear Orchard, Rancho Santa Ana, Santa Ana Can. 122 Comment
  RSA714449  Malacothrix saxatilis var. saxatilis R. E. Riefner 1999-5-22 99 -289 Orange City of Dana Point, beach west of Pacific Coast Hwy. South of Salt Creek near Ritz Carlton Hotel. 15 Comment
  UCR130492  Malacothrix saxatilis var. saxatilis R. E. Riefner Jr. 1999-5-22 99- 289 Orange South Coast, city of Dana Point, west of Pacific Coast Hwy, vicinity of Salt Creek Park and Ritz Carlton Hotel 15 Comment
  RSA507486  Malacothrix saxatilis var. tenuifolia Jeri Hirshberg 1988-6-7 s.n Orange Santa Ana Mts. 274 Comment
  RSA721106  Malacothrix saxatilis var. tenuifolia R. H. McArthur 1934-4-28 s.n. Orange Roadside W. of Santiago Dam. Comment
  RSA528045  Malephora crocea A. C. Sanders 1990-10-6 10188 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  RSA743469  Malephora crocea Fred M. Roberts, Lee Ann Carranza, Jeff Roseler 2008-10-9 7126 Orange Dana Point: Dana Point Headlands, CNLM Preserve, at base of cliff along south edge, 0.7 km W Marine Institute (Dana Point Harbor). 3 Comment
  CAS-BOT-BC167851  Malosma laurina John Thomas Howell 1927-7-16 2784 Orange Hills on north side of Santa Ana [Canon] Canyon 152 Comment
  LA62901  Malosma laurina W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA696481  Malosma laurina J. R. Bruff 1934-6-30 586 Orange High school campus Comment
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Sep 13 2013
  UCD116855  Malosma laurina P. B. Kennedy 1925-1-12 s.n. Orange Irvine Range. Comment
  RSA42673  Malosma laurina H. P. Bracelin 1942-11-22 2369 Orange Southern & Lower California Comment
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Jun 13 2012
  RSA0031758  Malva parviflora Robert F. Thorne 1977-11-21 50816 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  POM202030  Malvella leprosa L. M. Booth 1932-7-21 1296 Orange Anaheim Creek 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
  RSA666105  Malvella leprosa Fred M. Roberts, Michelle Lee 2001-6-18 5494 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 226 Comment
  CDA25897  Mangifera indica Mark A. Elvin, D. G. Kelch 2006-12-9 5322 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  RSA696064  Marah macrocarpa Keith E. Hoffmaster 1928-12-30 s.n. Orange San Onofre. Comment
Read comments
Nov 19 2013
  UCR99891  Marah macrocarpa Scott D. White 1996-12-20 4633 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA749354  Marrubium vulgare Fred M. Roberts 2008-4-15 6903 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
  RSA658205  Marrubium vulgare T. A. Daubert 1991-5-19 651 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island. Comment
  CAS-BOT-BC348166  Matricaria discoidea Ira L. Wiggins 1966-4-22 20615 Orange Along Associated Road between Yorba Linda Boulevard and Imperial Highway Comment
  POM49391  Matricaria matricarioides L. R. Abrams 1901-6-12 1772 Orange Laguna. Comment
  CAS-BOT-BC60301  Matthiola incana E. K. Balls 1955-4-4 20423 Orange West end of Newport Beach. 3 Comment
  RSA594896  Meconella denticulata Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4909 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  SD168148  Medicago lupulina R. L. Allen 1983-4-13 A 638 Orange Santa Ana,. 3030 Camille at Arapaho Comment
  IRVC2373  Medicago polymorpha Anonymous 1965-3-14 Orange Dana Point. Southern Coastal Comment
  IRVC2381  Medicago polymorpha L. Aldis 1965-3-1 s.n. Orange Costa Mesa; Senate St. Southern Coastal Comment
  UCD107890  Medicago polymorpha Ira L. Wiggins 1966-3-4 20492 Orange Shoulder of Peralta Ave. near junction of Newport Freeway and Riverside Highway. Comment
  UCR103219  Medicago polymorpha Scott D. White 1997-2-19 4692 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR192467  Medicago polymorpha A. C. Sanders, Fred M. Roberts 2008-3-25 34535 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA649317  Medicago polymorpha Marc Longwood 1975-4-2 s.n. Orange Collected from Baker Canyon, Santa Ana Mountains. Comment
  SBBG126176  Medicago truncatula A. C. Sanders with F. M. Roberts 2008-3-25 34521 Orange Weir Cyn, 4 mi ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
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Feb 28 2016
  UCD170851  Medicago truncatula A. C. Sanders; Fred M. Roberts 2008-5-6 35258 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro. 470 Comment
  RSA722086  Melaleuca nesophila R. E. Riefner Jr. 2007-3-18 7 -151 Orange City of Newport Beach, N shore of Newport Bay, North Star Beach, general vicinity of North Star Ln. and Polaris Dr. 9 Comment
  RSA725517  Melia azedarach Fred M. Roberts, Robert L. Allen 2007-9-28 6613 Orange Lomas de Santiago: above lower Santiago Cyn. wash along Santiago Cyn. Rd. just south of Irvine Mesa, 3.3 km N Bolero Lookout. 332 Comment
  SEINET10942437  Melica frutescens Robert F. Thorne, Earl W. Lathrop; G. Marshs 1977-6-4 Thorne 49768 Orange Santa Ana Mountains, Trabuco Canyon. Comment
  CAS-BOT-BC281595  Melica imperfecta John Thomas Howell 1927-6-17 2547 Orange N side of Santa Ana Canon 152 Comment
  IRVC2396  Melilotus albus Pat Rolfe 1965-4-24 s.n. Orange Ortega Highway. Santa Ana Mountains 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
  IRVC2419  Melilotus indicus B. Mawdsley 1965-5-1 s.n. Orange Newport Beach; Corona del Mar, 520 Narcissus Dr. Southern Coastal Comment
  IRVC2427  Melilotus indicus C. Hooven 1965-4-17 s.n. Orange Santa Ana Heights; Spruce Ave. and Palisades. Southern Coastal Comment
  UCR193759  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-7-3 35711 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR258628  Melilotus indicus Fred M. Roberts 2014-4-21 7854 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  RSA0054855  Melilotus indicus Grace Adams 1938-5-29 s.n. Orange Santiago Creek. Comment
  POM49187  Mentzelia affinis Helen D. Geis 1900-1 517 Orange Hills back of Santa Ana. Comment
  RSA539392  Mentzelia dispersa Fred M. Roberts, Carol A. Roberts 1988-6-9 4071 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, west slope, 0.5 km NNW summit. 1417 Comment
  POM49182  Mentzelia veatchiana L. R. Abrams 1901-6-15 1880 Orange Santiago Peak trail. Comment
  IRVC27725  Mesembryanthemum crystallinum Mark A. Elvin 2004-5-2 3429 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA402610  Mesembryanthemum crystallinum M. B. Dunkle 1933-4-9 3284 Orange Dana Point Comment
  POM201708  Mesembryanthemum crystallinum L. M. Booth 1932-6-29 s.n. Orange Newport Bay. Comment
  RSA234539  Mesembryanthemum crystallinum James Henrickson 1970-7-24 4982 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA278  Mesembryanthemum crystallinum J. T. Howell 1927-6-30 251 Orange Bryant Ranch near Long Beach. 15 Comment
  SEINET3155128  Mesembryanthemum nodiflorum L. Abrams 1903-4-20 3280 Orange Near San Juan Comment
  UC149125  Mesembryanthemum nodiflorum LeRoy Abrams 1903-4-20 3280 Orange near San Juan (along the seashore); Southern California Comment
  POM156685  Mesembryanthemum nodiflorum L. R. Abrams 1903-4-20 3280 Orange Along the seashore, near San Juan. Comment
  SEINET10973645  Mesembryanthemum nodiflorum Charlene A. Bennett 1976-7-22 Bennett 447 Orange Cutivated and native plants collected around the San Clemente Beach area. 3 Comment
  RSA588725  Micropus californicus Fred M. Roberts 1990-5-7 4605 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  RSA535967  Micropus californicus Fred M. Roberts 1989-4-17 4266 Orange SANTA ANA MTNS: Central Blind Canyon, 7.3km SW Sierra Peak, 2.4km N Irvine Lake. 259 Comment
  RSA580940  Microseris douglasii subsp. platycarpha D. E. Bramlet 1994-4-30 2375 Orange At the base of the San Joaquin Hills and E of the Quail Hill area. Open flatlands 152m NW of the end of San Canyon Ave. and some 396m S of the San Diego Freeway. 42 Comment
  RSA597724  Microseris douglasii subsp. platycarpha D. E. Bramlet 1995-4-29 2404 Orange Fairview Park, City of Coast 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. 43 Comment
  RSA627753  Microseris douglasii subsp. platycarpha Scott D. White 1998-3-16 6210 Orange Univ. of Calif. Irvine Campus: Site of proposed Research Park. Southwest of main capmus circle ca. halfway between Berkeley Ave. and new freeway (Bonita Cyn.). 37 Comment
  RSA685937  Microseris douglasii subsp. platycarpha Fred M. Roberts, David E. Bramlet 2003-3-27 5621 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Chistianitos Cyn., 0.79km N Sycamore Gate, 0.23km W Chistianitos Rd. 122 Comment
  RSA625808  Microseris heterocarpa Scott D. White 1998-4-24 6347 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd. just N of jct. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow. 305 Comment
  RSA731990  Microseris heterocarpa A. C. Sanders, Fred M. Roberts 2008-4-8 34746 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd 457 Comment
  RSA598918  Microseris lindleyi Scott D. White 1997-3-28 4846 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  UCD122219  Mimulus aurantiacus Steve Mason; Pam Rector 1993-4-16 1 Orange Laguna Niguel, Sea View Park Trail, end of trail behind blue rails and Ceanothus sp. Coastal sage scrub on bluff near housing development overlooking canyon and coastline. 182 Comment
  SEINET12269785  Mimulus aurantiacus Unknown 1933-1 8205 Orange back of La Guna Beach Comment
  RSA0056606  Mimulus aurantiacus subsp. australis P. Shirokawa 1998-4-24 5 Orange Cleveland National Forest. Trabuco Ranger District, 2.35 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 991 Comment
  UCR106282  Mimulus aurantiacus var. aurantiacus B. G. Pitzer, M. Georgiady 1997-4-5 3077 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  RSA0022437  Mimulus aurantiacus var. pubescens Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49795 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA650616  Mimulus brevipes R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  UCR191225  Mimulus brevipes A. C. Sanders 2008-4-29 35125 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
  UCSB48200  Mimulus cardinalis Roberts, Fred 1981-6-26 Orange Sant Ana Mts; Viejo Canyon; 0.1km N Calif. Rte. 74; 2.7km E San Juan Gurad Station 291 Comment
  RSA82101  Mimulus clevelandii F. W. Peirson 1923-5-6 3509 Orange Trabuco Canyon to Santiago Peak 915 Comment
  RSA719  Mimulus pilosus J. T. Howell 1927-7-27 491 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA423690  Minuartia californica M. B. Dunkle 1935-2-10 4335 Orange Laguna Creek; Coastal Southern California. 61 Comment
  RSA759204  Minuartia douglasii var. douglasii Robt Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, S face, base of a steep fire break cut from the summit down to the access road. Survey point #61 1634 Comment
  SEINET11941950  Mirabilis californica J. F. Bright, Wyman, C. 1933-1 8104 Orange In Santa Ana Foothills Comment
  RSA0026049  Mirabilis jalapa R. E. Riefner Jr. 1995-7-27 95 -325 Orange City of Santa Ana, W. 18th St and Main Street. Comment
  HSC16150  Mirabilis laevis J. W. Johnson 1961-3-29 Orange Newport Beach, on S side of upper Newport Bay Comment
  CAS-BOT-BC434667  Mirabilis laevis var. crassifolia P. A. Munz; R. D. Harwood 1920-4-24 3739 Orange Santa Ana Mts., Sierra Canyon 365 Comment
  POM761  Mirabilis laevis var. crassifolia I. M. Johnston 1918-5-4 266 Orange hills back of Laguna Beach. 152 Comment
  RSA0073649  Mirabilis laevis var. crassifolia Fred M. Roberts 2010-3-12 7178 Orange Southeast Coast: Dana Point Headlands: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  UC1292275  Mirabilis laevis var. crassifolia C. L. Hitchcock and C. V. Muhlick 1964-3-17 Orange 8 miles E of Yorba Linda, Santa Ana Canyon Comment
  RSA465233  Mirabilis laevis var. crassifolia Albert J. Perkins 1914-3-14 s.n. Orange Santa Ana; near Coward s Cove. Comment
  RSA38698  Modiola caroliniana E. L. Paddock 1943-9-10 s.n. Orange 1.5 miles NE of Brea Comment
  UC1543025  Mollugo verticillata Donald G. Nelson 1936-7-26 442 Orange n of Newport Beach (Costa Mesa); Costa Mesa Comment
  RSA0010774  Mollugo verticillata L. R. Abrams 1901-06 1769 Orange Laguna Comment
  SEINET182350 Image available Monanthochloe littoralis L. M. Booth 1932-5-12 1046 Orange Newport Bay Comment
  RSA0005460  Monardella hypoleuca Percy C. Everett 1935-7-11 7266 Orange Santa Ana Mountains: Main Divide Motorway, 4 miles N from Ortega Hwy in San Juan Canyon. 1098 Comment
  RSA735941  Monardella hypoleuca Justin M. Wood 2008-6-23 15 Orange Foothills of the Santa Ana Mountains, on the Irvine Ranch. S of limestone canyon, approx. 1/2 mile S of the sinks. 351 Comment
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Aug 13 2012
  UCR158814  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31613 Orange Santa Ana Mtns., near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak 998 Comment
  SEINET3156844  Monolepis nuttalliana L. Abrams 1903-4-18 3267 Orange Trabuco arroyo near Capistrano Comment
  CAS-BOT-BC263361  Muhlenbergia asperifolia John Thomas Howell 1927-7-27 2852 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  POM265765  Muhlenbergia microsperma J. C. Roos 2081 Orange East of San Juan Capistrano Comment
  RSA758011  Muhlenbergia microsperma D. E. Bramlet, Jim Harrison 2008-4-3 4157 A Orange South Bee Cyn. Bowerman landfill site, 1.2km south of Bee Cyn access road, & 122n west of the active landfill. Comment
  UCR168465  Muhlenbergia microsperma D. E. Bramlet, Fred M. Roberts 2003-5-1 3431 a Orange Donna O'Neill Reserve, west of Cristianitos Road 121 Comment
  UCR191459  Muhlenbergia microsperma A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34653 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
  UCD87118  Muhlenbergia rigens R. Tofsrud 1951-4-1 s.n. Orange Orange-San Diego County borders: Santa Ana Mts. 609 Comment
  RSA0010807  Myoporum laetum James Henrickson 1970-9-5 5347 Orange 2 mi NW of Huntington Beach in southern open portion of Bolsa Chica Salt Marsh 0 Comment
  UCR158037  Nama stenocarpa Adrian Wolf 1998-5-15 276 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  RSA562730  Narcissus tazetta Steve Boyd, Timothy S. Ross 1992-5-20 7466 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail., Upstream 1/4 mile to spur trail leading to old mining habitations in side canyon. 304 Comment
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Feb 4 2016
  CAS-BOT-BC259822  Nassella cernua LeRoy Abrams 1903-4-18 3269 Orange Trabuco Canon [Trabuco Canyon], Capistrano Comment
  CAS-BOT-BC259969  Nassella lepida John Thomas Howell 1927-6-9 2464 Orange N side of Santa Ana Canon [Santa Ana Canyon] 152 Comment
  RSA598968  Nassella lepida Scott D. White 1997-3-28 4839 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA732053  Nassella lepida A. C. Sanders, Fred M. Roberts 2008-3-25 34523 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA602779  Nassella pulchra R. E. Riefner Jr., Tony Bomkamp, R. Ramirez 1997-6-11 97 -181 Orange Black Star Canyon, Hidden Ranch. 610 Comment
  CAS-BOT-BC60333  Nasturtium officinale John Thomas Howell 1927-7-15 2777 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  RSA0028025  Nasturtium officinale Fred M. Roberts 2012-9-6 7698 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  RSA689535  Nasturtium officinale R. E. Riefner 2002-5-4 20 -97 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  RSA16383  Navarretia atractyloides E. R. Johnson 1935-6-11 7133 Orange Rancho Santa Ana, Santa Ana Canyon grain field west of grapefruit orchard. 137 Comment
  RSA678514  Nemacaulis denudata var. denudata Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1131 Orange Bolsa Chica Beach State Park and Bolsa Chica Ecological Reserve Boundary, alongside Pacific Coast Highway. 3 Comment
  UC536919  Nemacaulis denudata var. denudata Lawrence M. Booth 1932-5-27 1132 Orange Newport Beach Comment
  UCR42388  Nemacaulis denudata var. denudata A. C. Sanders 1986-5-31 6532 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  RSA665941  Nemacaulis denudata var. denudata Fred M. Roberts 1997-4-29 5023 Orange Bolsa Chica Salt Marsh; (US Fish and Wildlife Service cell 60) west of old oil field, 1.1 km. S Chica Survey Mark. 2 Comment
  SEINET10939173  Nemacladus ramosissimus Philip A. Munz 1923-9-7 Munz 7769 Orange Santa Anna Mountains, on slopes along trail from Holy Jim Canyon to Santiago Peak 1128 Comment
  RSA0036056  Nemophila menziesii M. B. Dunkle 1935-3-3 4341 Orange San Juan Canyon. 762 Comment
  RSA749469  Nemophila menziesii subsp. menziesii Fred M. Roberts 1999-4-22 5189 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.8 km SE Silverado Sch. and 2.3 km NNW Bolero Lookout. 396 Comment
  UCSB12894  Nemophila menziesii var. menziesii Breedlove, Dennis 1962-3-9 Orange 4.4 miles east of San Juan Capistrano on State 74 112 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
  IRVC157  Nephrolepis exaltata var. bostoniensis Randy Acevedo 1965-5-5 HS 533 Orange Newport Beach; East Bluff. Southern Coastal Comment
  IRVC158  Nephrolepis exaltata var. bostoniensis Linda Stilgenbauer 1965-4-20 HS 534 Orange Corona del Mar; 339 Milford Drive. Southern Coastal Comment
  RSA13157  Nicotiana bigelovii var. wallacei Percy C. Everett 1935-6-28 7259 Orange 8/10 of a mi. east of Atwood. S. side of R. R. tracks. 1067 Comment
  RSA0069235  Nicotiana clevelandii Fred M. Roberts, Lee Ann Caranza 2009-4-7 7140 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 60 Comment
  CDA1049  Nicotiana glauca D. G. Kelch 2006-12-9 6 .542 Orange Along Newport Back Bay Dr. in side canyon. Comment
  RSA700001  Nicotiana glauca Kenneth Beard s.n. Orange Santa Ana riverbank Comment
  RSA0011259  Nicotiana glauca L. A. Anderson 1948-2-8 s.n. Orange In Trabuco Canyon, east of El Toro. 457 Comment
  PASA2699  Nitrophila occidentalis Joseph Andorfer Ewan. 1931-7-31 9636 Orange Smeltzer 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
  IRVC26534  Nolina Mark A. Elvin 2004-5-22 3452 Orange UCI Arboretum Southern Coastal 15 Comment
  POM14399  Nolina cismontana Philip A. Munz, Johnston 1922-5-18 5315 Orange Santa Ana River Canyon, 3 miles south of Orange Co. line Comment
  RSA644977  Nolina cismontana R. E. Riefner 2000-4-15 20 -377 Orange Santa Ana Mtns. NCCP North Ranch Policy Plan Area. Along dirt road running N and parallel to Black Star Cy. Road. 396 Comment
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Jan 6 2018
  RSA648660  Nolina cismontana R. E. Riefner 2000-7-8 20 -628 Orange NCCP North Ranch Policy Plan Area. On ridgeline overlooking upper W fork of Fremont Canyon; located E of Main Divide Road and SE from Windy Ridge cypress forest. 438 Comment
  UCR152560  Nolina cismontana James C. Dice, T. Oberbauer 1986-5-3 651 Orange Santa Ana Mtns, 0.2 km west of Trabuco Canyon 365 Comment
  UCR209367  Nolina cismontana Fred M. Roberts, Linda Farley 2008-3-28 6832 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  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
  UC1618040  Nuttallanthus texanus Donald G. Nelson 1935-4-14 283 Orange near Pacific Electric Railway Station, Newport Beach Comment
  POM3074  Oenothera californica P. A. Munz 4117 Orange Anaheim. Comment
  RSA2061  Oenothera californica subsp. californica Carl B. Wolf 1931-3-25 1935 Orange along Santa Fe R. R, 1 mile west of Atwood. 91 Comment
  UC527217  Oenothera californica subsp. californica C. B. Wolf 1931-3-25 1935 Orange along Santa Fe R.R. 1 mi w Atwood 91 Comment
  RSA733637  Oenothera dentata L. C. Hull 1934-4-8 s.n. Orange Laguna Hills. Comment
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Jun 24 2020
  RSA718962  Oenothera elata Fred M. Roberts, Robert L. Allen 2006-10-8 6418 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  UCR222862  Oenothera elata T. B. Salvato 2010-10-27 5130 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  CDA38146  Oenothera elata Mackessy & Patrick 1957-6-27 s.n. Orange Santa Ana River. 0 Comment
  RSA38442  Oenothera elata subsp. hirsutissima P. A. Munz 1947-9-10 12133 Orange Edge of garden in rover nottom, Rancho Santa Ana, Santa Ana River Canyon. 122 Comment
  UC729952  Oligomeris linifolia Carl B. Wolf 1932-6-28 3792 Orange Bryant Ranch Comment
  UCR155808  Oncosiphon piluliferum Robert Noll 2005-4-29 s.n. Orange South Coast, El Toro, Marine Corps Air Station, along road to archery range 107 Comment
  RSA792124  Oncosiphon piluliferum R. E. Riefner Jr. 2011-5-20 11 -57 Orange Newport Beach, Coastal Peak Park, East Coastal Peak Road at Ridge Park Road 305 Comment
  RSA649688  Opuntia R. E. Riefner 2000-8-23 20 -733 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 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
  POM284094A  Opuntia littoralis Lyman Benson 1955-10-17 15598 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  RSA542651  Opuntia littoralis var. vaseyi Fred M. Roberts, Carol A. Williams 1988-4-12 3924 Orange Lomas de Santiago: Loma Ridge, 3.3 km NW Bolero Lookout. 475 Comment
  OBI7086  Opuntia oricola Walkington, Pinkava, G. Smith & McLeod, McLeod 1970-11-7 M 290 ; (DLW Orange Fullerton, W side of Euclid Ave., 1/2 mi N of Bastanchury Comment
  RSA6668  Opuntia oricola B. D. Stark 1933-1-17 4518 Orange 5 miles north of Laguna Beach on road to Irvine. 152 Comment
  SEINET6752377 Image available Opuntia prolifera Marc A. Baker, Bruce D. Parfitt 1987-4-12 7519 Orange Newport Beach, just W of bridge to Balboa Penninsula. Comment
  RSA6667  Opuntia vaseyi B. D. Stark 1933-1-17 4512 Orange 5 miles north of Laguna Beach on road to Irvine. 152 Comment
  RSA0059155  Orobanche fasciculata W. Pequegnat 1940-4-13 s.n. Orange Trabuco Peak, Santa Ana Mts. 1311 Comment
  RSA759532  Orobanche vallicola Robt. Allen 2006-12-13 s.n. Orange Holy Jim Canyon Trail. About 1 mile up trail from forest gate. Within 1-2 m W of the trail edge 640 Comment
  CAS-BOT-BC355773  Osmadenia tenella Munz; Street; Williams 1919-5-3 2631 Orange Santa Ana River Canon [Canyon] Comment
  CAS-BOT-BC355774  Osmadenia tenella Helen D. Geis 1902-1-1 535 Orange Santiago Cr. Comment
  CAS-BOT-BC355779  Osmadenia tenella Herbert L. Mason 1925-4-25 2903 Orange 5 miles south of Laguna Comment
  RSA160508  Osmorhiza brachypoda J. D. Olmsted 1959-4-23 464 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  UCR76185  Osmorhiza brachypoda B. G. Pitzer, Stu Hemstreet 1992-5-27 1951 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  RSA97393  Osmorhiza brachypoda F. W. Peirson 1923-5-6 3502 Orange From Trabuco Canyon to Santiago Peak 1646 Comment
  UCSB52920  Oxalis californica Roberts, Fred 1983-3-10 Orange Dana Point Headlands: just south of Pacific Coast Hwy, 0.5km northwest Dana Point Harbor; 0.5km WSW Richard Henry Dana School 85 Comment
  OBI30391  Oxalis pes-caprae B. Thomas 1967-12-30 147 -74 Orange 4 yds S of Cal State Fullerton's Science Bldg entrance in the fl bed Comment
  OBI8001  Oxalis pes-caprae Kurt R. Neisess 1975-12-18 s.n. Orange Disturbed area in Fullerton Hills Comment
  POM17801  Oxytheca trilobata P. A. Munz 1923-6-14 7059 Orange Glen Ivy Trail to Santiago Peak. 1220 Comment
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Apr 1 2013
  UC718383  Oxytheca trilobata P. C. Everett 1935-6-19 Orange 1.5 mi below summit, e slope Santiago Peak (main divide motorway); Santa Ana Mts. 1310 Comment
  UCR227627  Oxytheca trilobata Robt. L. Allen 2003-6-22 12281 Orange Santa Ana Mountains, along North Main Divide Road, 6.3 road mi north of Falcon Group Campground, c. 2.43 air mi northwest of Los Pinos Saddle 1334 Comment
  CAS-BOT-BC121213  Paeonia californica C. B. Wolf 1936-6-17 7949 Orange Santa Ana Mtns, along Ortega Hwy, 6/10 mi. below San Juan Hot Springs. 182 Comment
  CAS-BOT-BC121214  Paeonia californica C. B. Wolf 1931-3-6 1842 Orange Trabuco Canyon, 1/2 mi. above Trabuco oaks, west slope of the Santa Ana Mtns. Upper Sonoran. 457 Comment
  RSA303  Paeonia californica J. T. Howell 1927-6-6 50 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA434261  Paeonia californica M. B. Dunkle 1933-3-5 3095 Orange San Juan Canyon, Comment
  RSA700033  Paeonia californica R. H. McArthur 1934-2-17 s.n. Orange Gypsum Canyon. Comment
  RSA787679  Paeonia californica Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49715 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail Comment
  CAS-BOT-BC438784  Pallenis maritima R. E. Riefner, Jr. 2012-11-14 12 -551 Orange City of Newport Beach, S. of Poppy St. / Ocean Blvd., coastal bluff near Little Corona Beach rocky intertidal area. 5 Comment
  RSA697732  Panicum capillare Anonymous 1928-1 6 Orange Santa Ana River flats. Comment
  RSA542447  Papaver californicum Fred M. Roberts 1988-3-9 3844 Orange Laguna Beach, Goff Ridge, along Nyes Place, 0.9km NE Goff Island. 169 Comment
  UCR222388  Parietaria hespera var. californica Mark A. Elvin 2003-1-26 2242 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  POM8722  Parietaria hespera var. hespera Philip A. Munz, R. D. Harwood 1920-4-17 3801 Orange Laguna Canyon. 61 Comment
  UC729871  Parietaria hespera var. hespera Carl B. Wolf 1932-7-2 Orange .12 mi below La Vida Springs; Carbon Canyon 213 Comment
  CAS-BOT-BC478187  Parthenium hysterophorus Jan West 2015-4-22 s.n. Orange Santa Ana, SE corner of E 17th Street, and Lincoln Ave., 0.5 km east of I-5 on 17th, between RR tracks and Lincoln and adjacent dry waste strip in front of auto body and paint shop, east of tracks 49 Comment
  RSA725537  Parthenocissus inserta Fred M. Roberts, Robert L. Allen 2007-9-28 6609 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  CDA22571  Paspalum dilatatum J. B. Anderson 1966-5-16 643 Orange Santa Ana Heights: Bayview Avenue and Zenith Avenue. 0 Comment
  RSA603302  Paspalum distichum Scott D. White, Brian Leatherman 1997-6-12 5333 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
  RSA710413  Paspalum distichum Fred M. Roberts 2005-10-3 6301 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
  SD218260  Paspalum vaginatum R. E. Riefner Jr., K. Campbell 2008-8-31 08 267 Orange City of Irvine, tidal portion of San Diego Creek, immediately easst of Highway 73 overpass. 0 Comment
  UC2061661  Paspalum vaginatum R. E. Riefner Jr. 2008-7-29 08 -256 Orange City of of Dana Point, near Ritz-Car;ton Hotel, Salt Creek Beach area. Comment
  UCR204899  Paspalum vaginatum R. E. Riefner Jr. 2003-10-14 03- 456 Orange South Coast, city of San Juan Capistrano, Trabuco Creek, south side of Del Obispo Street at Paseo Adelento Street 26 Comment
  CDA25877  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange Southern Coastal; UCI Arboretum Comment
  UCR130357  Pelargonium A. C. Sanders, Mark A. Elvin 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
  UCR150918  Pellaea mucronata subsp. mucronata Valerie Soza, LeRoy Gross 1999-6-7 477 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
  RSA631394  Pellaea mucronata var. mucronata Valerie L. Soza, LeRoy Gross 1999-6-7 477 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  CDA2157  Pennisetum clandestinum Margaret Bellue, Johnson Oct 1944 Orange Yorba Linda. 0 Comment
  RSA18551  Pennisetum clandestinum Wesley Conklin 1937-1-20 8309 Orange Growing in Conklin's yard at Placentia Comment
  UCR266687  Pennisetum clandestinum D. E. Bramlet 2009-11-20 4416 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  IRVC29810  Pennisetum setaceum Laura D. Lyons, Mark A. Elvin 2006-9-23 424 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
  RSA0054896  Penstemon antirrhinoides Keith E. Hoffmaster 1931-3-22 524 Orange Santa Ana Mts. Comment
  RSA797600  Penstemon heterophyllus subsp. australis Robert F. Thorne 1977-11-21 49997 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  UCSB52446  Penstemon heterophyllus var. australis Roberts, Fred 1982-7-20 Orange Santa Ana Mtn; 0.2 km N Falcon Group Camp: 2.0 km ESE Los Pinos Peak 1010 Comment
  RSA298694  Penstemon spectabilis D. C. Michener 1982-5-24 4044 Orange Open road bank along Main divide truck route 5.4 mi. north of El Cariso. Comment
  RSA761798  Penstemon spectabilis var. spectabilis Robert Allen 2003-6-22 12298 Orange Along North Main Divide Road, 7.5 road miles north of Falcon Group Campground, circa 1.35 air miles west of Trabuco Peak. 1205 Comment
  RSA16996  Pentachaeta aurea Percy C. Everett 1935-4-22 7745 Orange 1/4 mile W of Horseshoe Bend, Santa Ana Canyon 122 Comment
  RSA702683  Pentachaeta aurea Scott D. White, Michael Honer 2004-5-17 10397 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
  UC718583  Pentachaeta aurea P. C. Everett 1935-4-22 6463 Orange 1/4 mi w Horseshoe Bend; Santa Ana Canyon 121 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
  RSA718965  Petunia parviflora Fred M. Roberts, Robert L. Allen 2006-10-8 6415 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 03.km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  RSA17192  Phacelia brachyloba Percy C. Everett 1935-7-11 7267 Orange Santa Ana Mts, Main Divide Motorway, 1.7miles N of Jct with Trabuco Can road. 1220 Comment
  RSA0125889  Phacelia cicutaria var. hispida Fred M. Roberts Jr. 2012-4-27 7544 Orange Santa Ana Mountains: Lomas de Santiago: Loma Ridge, west of SR 241, Las Flores Cyn., 1.5 km WSW Irvine Lake Park Campground & 1.1 km E Orange Co. Emergency Operations Center (Hill 1311). 311 Comment
  RSA594  Phacelia cicutaria var. hispida J. T. Howell 1927-7-26 477 Orange Claymine Canon near Sierra Peak. 244 Comment
  RSA734285  Phacelia cicutaria var. hispida A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34627 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 280 Comment
  RSA749315  Phacelia cicutaria var. hispida Fred M. Roberts, Linda Farley 2008-3-28 6820 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber s Peak, Irvine Land Conservancy. 437 Comment
  RSA769612  Phacelia cicutaria var. hispida E. W. Lathrop 1974-6-27 7430 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA699578  Phacelia distans Dorothy Sammis s.n. Orange Silverado Canyon Comment
  SEINET7073422  Phacelia distans A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  POM299068  Phacelia distans J. T. Howell 1928-6-24 2590 Orange Olinda. 152 Comment
  RSA2112  Phacelia minor Carl B. Wolf 1931-3-6 1830 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA542474  Phacelia minor Fred M. Roberts 1988-3-15 3851 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark. 149 Comment
  RSA648195  Phacelia minor Karl Price 1988-5-7 38 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
  RSA738987  Phacelia minor Aileen Adams 1932-5-9 s.n. Orange On a slope N Trabuca Comment
  RSA20369  Phacelia parryi Percy C. Everett 1938-4-11 9400 Orange Rancho Santa Ana, Santa Ana canyon, N of W end of Walnut orchard. 122 Comment
  UCR100309  Phacelia parryi B. G. Pitzer 1997-4-15 3149 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
  SD72766  Phacelia ramosissima F. R. Fosberg 1931-6-21 S 5135 Orange Silverado Canyon, Santa Ana Mountains. Comment
  JEPS1031  Phacelia ramosissima var. austrolitoralis L. M. Booth 1932-5-19 1060 Orange Newport Bay Comment
  POM3701  Phacelia ramosissima var. austrolitoralis D. L. Crawford s.n. Orange Arch Beach. Laguna Beach Region. Comment
  RSA582643  Phacelia ramosissima var. austrolitoralis Louis C. Wheeler 1932-6-22 843 Orange Newport Bay. 1 Comment
  RSA562749  Phacelia ramosissima var. latifolia Steve Boyd 1992-5-19 7445 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  RSA773554  Phacelia ramosissima var. latifolia Fred M. Roberts 2008-6-3 7030 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
  CDA22545  Phalaris minor J. B. Anderson 1966-4-18 597 Orange Mac Arthur Boulevard near Red Hill Road. 0 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
  SEINET10946467  Philodendron Thomas B. Croat 2003-4-5 Croat 87593 Orange Cultivated Plants from Rick M. Cirino, Cosa Mesa, California. Comment
  HSC13745  Pholistoma auritum J. W. Johnson 1961-4-2 Orange Newport Beach, along Upper Newport Bay. Comment
  RSA459266  Pholistoma auritum Albert J. Perkins 1914-3-9 s.n. Orange Laguna Beach Comment
  RSA734907  Phoradendron macrophyllum A. C. Sanders, Fred M. Roberts 2008-6-17 35480 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR193776  Phoradendron macrophyllum A. C. Sanders, Fred M. Roberts 2008-7-3 35699 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  UCR145988  Phoradendron tomentosum June Latting 1977-1-12 s.n. Orange Chino Hills, Tonner Canyon 213 Comment
  UCR234134  Phoradendron villosum Dick Newell 2011-12-27 221 Orange Peninsular Range; Santa Ana Mtns. Region, Lomas de Santiago, along Hicks Haul Rd./Jeffrey Rd. south of Augustine Staging Area/Santiago Canyon rd. 314 Comment
  JEPS39026  Phyla lanceolata Lawrence M. Booth 1932-7-1 1238 Orange Anaheim Creek Comment
  RSA384023  Phyllospadix torreyi Anstruther Davidson 1910-6-28 2493 Orange Balboa Beach. Comment
  CAS-BOT-BC452025  Phyllospadix torreyi I. M. Johnston 1915-9-3 s.n. Orange Laguna Beach Comment
  RSA79903  Physalis philadelphica F. W. Peirson 1924-10-19 5239 Orange Wintersberg Comment
  POM17438  Picris echioides P. A. Munz 1923-4-1 6595 Orange Laguna Lakes. 61 Comment
  CAS-BOT-BC413832  Pinus attenuata Andrew Townesmith; Karen M. Meyer; Tracy Scott 2007-3-11 677 Orange Cleveland National Forest. Off Long Canyon Road (Forest Service road 6S05). Near entrance to Falcon Group Camp 1000 Comment
  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
  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
  RSA659356  Pinus halepensis P. Shirokawa 1998-5-15 42 Orange Cleveland National Forest- Trabuco Ranger District, 4.25 miles from Ortega Highway (State Highway 74) on North Main Divide Road, and 0.5 miles into Falcon campground 1067 Comment
  IRVC2820  Pinus radiata Linda Stilgenbauer 1965-4-27 s.n. Orange Corona Del Mar: 339 Milford Drive. Southern Coastal Comment
  RSA539395  Pinus radiata Fred M. Roberts, Carol A. Roberts 1988-11-3 4163 Orange Santa Ana Mtns.: Upper Trabuco Canyon near Main Divide Truck Trail, 1.3km NE Los Pinos Peak 1268 Comment
  RSA131978  Piperia cooperi Gale Sphon 1959-5-2 324 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest. Comment
  RSA749312  Piperia cooperi Fred M. Roberts 1999-4-22 5193 Orange Lomas de Santiago: ridges between Limestone Cyn. and Santiago Creek wash opposite mouth Williams Cyn., 2.0 km SE Silverado Sch. and 2.2 km NNW Bolero Lookout. 400 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
  RSA798191  Piptatherum miliaceum R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49569 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR98242  Piptatherum miliaceum Scott D. White 1997-3-28 4826 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UCSB22859  Piptatherum miliaceum Booth, Lawrence 1932-6-7 Orange Balboa Island, Newport Bay Comment
  SBBG120621  Plagiobothrys acanthocarpus R. E. Riefner 2006-4-12 06 -116 Orange Irvine, N foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Cyn Rd 46 Comment
  UC881311  Plagiobothrys acanthocarpus Alice Eastwood and John Thomas Howell 1937-4-24 3934 Orange Dana Point Comment
  UCSB56510  Plagiobothrys acanthocarpus Marsh, G. 1978-3-17 Orange U.C. Irvine Ecological Preserve; near eastern fence line, drainage separating Hills #1 and #2 Comment
  RSA699337  Plagiobothrys arizonicus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  IRVC25396  Plagiobothrys collinus var. californicus Fred M. Roberts 1987-4-3 3341 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  IRVC9331  Plagiobothrys collinus var. californicus C. Leavell 1966-3-16 59 Orange El Toro Rd. near Post Office; in open field. El Toro Comment
  UCSB14546  Plagiobothrys collinus var. californicus Breedlove, Dennis 1962-3-9 Orange 4.4 miles east of San Juan Capistrano on State 74 112 Comment
  IRVC22199  Plagiobothrys collinus var. fulvescens Fred M. Roberts 1985-4-8 1637 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  RSA683082  Plagiobothrys nothofulvus Scott D. White, Amanda Duchardt 2003-5-1 9157 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  RSA732156  Plagiobothrys nothofulvus A. C. Sanders, Fred M. Roberts 2008-4-22 35030 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  POM98152  Plagiobothrys nothofulvus P. A. Munz s.n. Orange Santa Ana Mountains, Silverado Canyon 549 Comment
  RSA401950B  Plantago erecta Anstruther Davidson 1910-04 2475 Orange Corona Del Mar. Comment
  RSA401984A  Plantago erecta Albert J. Perkins 1921-04 s.n. Orange Mesa near Arch Beach, Santa Ana. Comment
  RSA450850  Plantago erecta Karlin G. Marsh 1978-3-16 s.n. Orange UCI Ecological Preserve: Hill #1. 58 Comment
  RSA747635  Plantago erecta Fred M. Roberts 2008-5-16 6982 Orange Dana Point: Dana Point Headlands, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  UC1618039  Plantago erecta Donald G. Nelson 1935-4-14 282 Orange Near Pacific Electric Railway Station. Newport Beach Comment
  RSA542454  Plantago indica Fred M. Roberts 1987-6-30 3469 Orange Bolsa Chica Salt Marsh: Pacific coast Hwy, 0.8kim SE Warner. 2 Comment
  RSA749680  Plantago major A. C. Sanders, Fred M. Roberts 2008-7-16 35839 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin. 391 Comment
  UC1618068  Plantago ovata Donald G. Nelson 1935-3-30 194 Orange On Tonner lease, mouth of Brea Canyon. Comment
  RSA753025  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-6-17 35471 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR193300  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-6-17 35471 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR237925  Platanus racemosa Mark A. Elvin 2003-2-2 2278 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR241072  Platanus racemosa Dick Newell, Judy Booth, Robt. L. Allen 2013-4-6 324 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Rd./Silverado Cyn. Rd., 1.5 miles above Maple Springs gate 671 Comment
  SEINET7779659  Platanus racemosa Unknown 1966-8-22 2390 Orange O'Neill State Park, about 20 miles southeast of Anaheim Comment
  CAS-BOT-BC354033  Plecostachys serpyllifolia R. E. Riefner, Jr. 2013-12-12 13 -377 Orange City of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort 2 Comment
  CHSC106005  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 -151 Orange City of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort. UTM: 11S 0432734E 3704750N. 2 Comment
  RSA766066  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 -151 Orange City of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort. 2 Comment
  UC2061637  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 -151 Orange City of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort. Comment
  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
  RSA232234  Pluchea odorata James Henrickson 1970-7-24 4986 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA708731  Pluchea odorata Fred M. Roberts, Robert L. Allen, Chris M. Barnhill 2004-8-21 6114 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
  RSA719408  Pluchea odorata Fred M. Roberts, Robert L. Allen 2006-10-8 6427 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  RSA800672  Pluchea odorata Justin M. Wood 2010-9-29 2747 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  RSA302005  Pluchea odorata J. R. Shevock 1972-9-27 2282 Orange Newport Beach Bay. 3 Comment
  RSA791488  Pluchea purpurascens R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49637 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  POM17610  Pluchea sericea P. A. Munz 1923-4-1 7325 Orange Laguna Beach, upper edge of beach, 2 miles north-west of Laguna. Comment
  CAS-BOT-BC255536  Poa annua Ira L. Wiggins 1966-2-12 20441 Orange On W side of State College Blvd, opposite Electra Way, Fullerton Comment
  RSA699308  Poa pratensis Keith E. Hoffmaster 1927-5-30 33 Orange Santa Ana. Comment
  IRVC22661  Poa scabrella Fred M. Roberts 1985-5-9 1722 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  IRVC22700  Poa scabrella Fred M. Roberts 1985-5-9 1784 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  UCR150913  Poa secunda subsp. secunda Valerie Soza, LeRoy Gross 1999-6-10 527 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
  RSA644981  Pogogyne douglasii subsp. parviflora R. E. Riefner Jr. 2000-4-5 20 -211 Orange North Ranch Policy Plan Area, Main Divide Road, top of Gypsum Canyon, east of Windy Ridge. 518 Comment
  RSA743463  Polycarpon tetraphyllum Fred M. Roberts 2008-7-10 7071 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
  CAS-BOT-BC167819  Polygala cornuta var. fishiae John Thomas Howell 1927-7-3 2640 Orange Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
  RSA425  Polygala cornuta var. fishiae J. T. Howell 1927-7-3 258 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA5379  Polygala cornuta var. fishiae B. D. Stark 1932-12-30 4460 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA588890  Polygala cornuta var. fishiae Fred M. Roberts 1990-6-4 4664 Orange Santa Ana Mountains: Hall Canyon, 1.8 km NNW Mustang Spring at east edge of Flying B Ranch. 421 Comment
  UC536925  Polygonum argyrocoleon Lawrence M. Booth 1932-7-25 1317 Orange 2 mi from ocean; Santa Ana River Comment
  CLARK-A1528-919  Polygonum aviculare Patricia A. Andrews 1975-6-26 5916 Orange Capistrano Bay Beach 9 Comment
  SD236380  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 Ave and University drive. 24 Comment
  RSA756069  Polygonum hydropiperoides T. B. Salvato, Billy Deane 2006-10-16 1927 Orange Irvine, San Diego Creek flood control channel, between Michelson Driveand the 405 Fwy. 9 Comment
  CDA21557  Polygonum lapathifolium A. Thomas, Mark A. Elvin 2006-9-23 609231 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  POM188245  Polypodium californicum Marcus E. Jones 1931-3-23 20425 Orange Laguna Comment
  RSA0135563  Polypodium californicum R. E. Riefner 2017-3-31 17 -137 Orange City of San Clremente, San Clemente State Beach, NW bluff area immediately S of Ave. Calafia. 24 Comment
  RSA689945  Polypodium californicum M. B. Dunkle 1935-2-23 4340 Orange Dana Point. 9 Comment
  RSA753427  Polypodium californicum D. E. Bramlet 2008-4-1 4140 Orange Ridegeline in Upper Hicks Canyon, 136m S of the Haul Rd. 345 Comment
  UCR209523  Polypodium californicum Fred M. Roberts 2008-4-16 6907 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  UCSB62523  Polypodium californicum Kiefer, Lawrence 1963-12-8 Orange Santa Ana Mtns. along road in main canyon above Silverado. 457 Comment
  IRVC8419  Polypogon monspeliensis J. B. Anderson 1966-4-22 607 Orange San Joaquin Hills: Los Trancos Canyon, along dirt road and near spring. Santa Ana Mountains 122 Comment
  RSA697712  Polypogon monspeliensis J. Russell Bruff 1930-10-19 s.n. Orange Santa Ana River bed. Comment
  RSA696612  Polypogon monspeliensis Jeanne Paxton 1934-5-18 s.n. Orange Lemon Heights Comment
  RSA91997  Polypogon monspeliensis F. W. Peirson 1924-5-31 4649 Orange Laguna Canyon near Laguna Beach. 107 Comment
  RSA756311  Polypogon viridis A. C. Sanders, Fred M. Roberts 2008-7-3 35703 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA17460  Populus fremontii Carl B. Wolf 1936-9-23 8724 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA788957  Populus trichocarpa Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49562 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  SD236405  Populus trichocarpa R. E. Jr. Riefner 2006-4-8 06 111 Orange South Coast: San Juan Capistrano (city), San Juan Creek at La Novia Ave. 21 Comment
  RSA722930  Populus trichocarpa R. E. Riefner Jr. 2007-6-12 7 -253 Orange City of San Juan Capistrano. Vicinity of Calle Arroyo/ Paseo Esteban at San Juan Creek. 35 Comment
  POM180684  Porophyllum gracile J. T. Howell 1929-3-2 4097 Orange Rocky hills on N side of Santa Ana Canyon. 152 Comment
  RSA588882  Porophyllum gracile Fred M. Roberts, D. Bontrager 1990-6-5 4673 Orange Rancho Mission Viejo: Uper Gabino Canyon, near Orange County line, 3.9 kilometers E Point Ranch Survey Marker. 280 Comment
  SD144030  Porophyllum gracile Scott D. White 1997-3-28 4841 Orange Santa Ana Mountains, above Modjeska Canyon. 424 Comment
  UCR197674  Portulaca oleracea A. C. Sanders, Fred M. Roberts 2008-9-18 36071 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  RSA0054902  Portulaca oleracea Keith E. Hoffmaster 1936-10-5 728 Orange Santa Ana. Comment
  CAS-BOT-BC452120  Potamogeton crispus Johnston 1919-5-15 2785 Orange Santa Ana River Comment
  UCR191453  Potentilla glandulosa A. C. Sanders, Fred M. Roberts 2008-4-8 34762 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
  RSA696917  Pseudognaphalium biolettii Anonymous s.n. Orange Orange County park Comment
  SBBG103896  Pseudognaphalium biolettii B. Pitzer with S. Hemstreet 1992-5-21 1945 Orange State Hwy 74, 1 mi uphill from the 2000 ft marker, and to the left ca .1 mi on an old paved rd; Cleveland National Forest Comment
  UCR222874  Pseudognaphalium biolettii T. B. Salvato 2010-10-27 5134 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  RSA747708  Pseudognaphalium californicum Fred M. Roberts 2008-5-16 6986 Orange Dana Point: Dana Point Hradland, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  SD212490  Pseudognaphalium californicum A. C. Sanders, Fred M. Roberts and Michelle Balk 2006-7-20 33008 Orange Santa Ana Mountains; San Juan Canyon from Lower San Juan Picnic Area to ca. 1.0 mile downstream, parallel to Highway 74 and near Riverside County line. 366 Comment
  CAS-BOT-BC502070  Pseudognaphalium leucocephalum R. E. Riefner, Jr. 2015-12-9 15 -461 Orange Rancho Mission Viejo, E of San Juan Capistrano, San Juan Creek, W of Antonio Pkwy, N side of Ortega Hwy (Hwy 74), near bridge at Sendero Field Park 55 Comment
  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
  SBBG119614  Pseudognaphalium leucocephalum F. M. Roberts 2003-7-24 5963 Orange San Juan Crk, ca. 0.1 km NE of La Novia Bridge, San Juan Capistrano 27 Comment
  UC484151  Pseudognaphalium leucocephalum J. T. Howell 1928-9-6 1208 Orange Rancho Santa Ana Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR232932  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2011-10-19 11- 147 Orange South Coast, city of San Juan Capistrano, San Juan Creek, c. 0.2 mi west of intersection of Paseo Tirador and Calle Arroyo Street 31 Comment
  UC68911  Pseudognaphalium microcephalum H. M. Hall 1905-7-1 6730 Orange Santa Ana Canon 121 Comment
  CAS-BOT-BC357570  Pseudognaphalium stramineum Ira L. Wiggins 1966-3-18 20533 Orange Experimental Garden behind greenhouse, California State College at Fullerton Comment
  IRVC15160  Pseudosasa japonica D. Van Gorden 1965-5-9 Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC20774  Pseudotsuga macrocarpa Fred M. Roberts 1980-5-3 63 Orange Main Divide Truck Trail, 0.4km W Trabuco Peak. Santa Ana Mountains 1341 Comment
  IRVC22667  Pseudotsuga macrocarpa Fred M. Roberts 1985-5-9 1728 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  MACF020379  Pseudotsuga macrocarpa B. Thomas 1967-12-22 57 - Orange Santiago Park; Santa Ana Mountains 1523 Comment
  RSA580938  Psilocarphus brevissimus D. Bramlet 1995-4-29 2401 Orange Fairview Park, Costa Mesa. 366m N of intersection of Wilson and Cyn drive and 152 m W of the Cyn School. 43 Comment
  UCR174183  Psoralea orbicularis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33037 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
  RSA698489  Pterostegia drymarioides Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA698491  Pterostegia drymarioides Unspecified s.n. Orange Orange County park. Comment
  SBBG1714  Pterostegia drymarioides H. and M. Dearing 1937-4-12 2834 Orange Santa Ana Cyn Comment
  RSA443843  Pterostegia drymarioides Gordon Marsh, K. G. Marsh 1977-5-2 s.n. Orange Santa Ana Mountains: Pine Canyon, along road above Blue Light Mine. Comment
  RSA542462  Pterostegia drymarioides Fred M. Roberts 1987-3-31 3318 Orange Lomas de Santiago: Lomas [Loma] Ridge, Upper Serrano Canyon, east fork, reservoir, 2.2 kilometers SE Bolero Lookout. 406 Comment
  CAS-BOT-BC362140  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange N. facing slope of the Santa Ana Canyon, 0.1 mi. s. of Riverside Freeway to Anaheim, ca. 2 mi. w. of the Riverside Co. line in Orange Co. Comment
  CDA7616  Pulicaria paludosa R. G. Ahlefeld 1959-7-15 Orange Santa Ana River Canyon, east of Fullerton. 0 Comment
  IRVC25158  Pulicaria paludosa Fred M. Roberts 1986-9-3 3127 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  JEPS35293  Pulicaria paludosa R. L. Pope 1963-9-23 Orange approx 0.75 mi above Yorba Linda Bridge; Sanat Ana Canyon Comment
  RSA679099  Pulicaria paludosa Fred M. Roberts 2003-7-24 5964 ` Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  UCD47711  Quercus X acutidens John M. Tucker 1941-5-30 254 Orange Low shrub, in San Juan Canyon, 200 yards west of San Juan Guard Station, Highway 74, Orange County, California. Comment
  POM256729  Quercus X grandidentata W. Pequegnat 1940-6-18 s.n. Orange About 1 mile NW Sierra Peak. Santa Ana Mts. 762 Comment
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Aug 2 2020
  RSA12363  Quercus X grandidentata E. R. Johnson 1934-1-6 5563 Orange Santa Ana Mts., on slopes of Sierra Peak at about the head of Claymine Canyon. 762 Comment
  UCR240200  Quercus agrifolia C. J. Minar 1994-4-16 05 Orange South Coast, Santa Ana, on the bank of Santiago Creek, 0.25 mi. east of Santiago St. and 0.25 mi. west of Amtrack RR bridge, east of I-5 Fwy & south of Garden Grove (22) Fwy 50 Comment
  SEINET12031056  Quercus agrifolia S. A. Thompson, Rawlins, J. E. 1988-1 5258 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  IRVC20824  Quercus agrifolia var. agrifolia Fred M. Roberts 1982-7-25 784 Orange South Laguna; Niguel Hill, canyon on S flank; 0.9km ESE Aliso Peak; 1.1km NNW Bench Mark 133 Southern Coastal 195 Comment
  RSA725472  Quercus agrifolia var. agrifolia Fred M. Roberts, Megan Lulow 2007-7-30 6546 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  UCSC009093  Quercus agrifolia var. agrifolia Al Keuter 2015-3-25 10- 17 -3 Orange SR 133 near Laguna Beach 46 Comment
  RSA644957  Quercus berberidifolia R. E. Riefner Jr. 2000-1 20 - Orange NCCP North Ranch Policy Plan Area. Main Divide Road; top of Gypsum Canyon Comment
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Nov 6 2011
  RSA649691  Quercus berberidifolia R. E. Riefner Jr. 2000-7-8 20 -627 Orange NCCP North Ranch Policy Plan Area. On ridgetop overlooking W fork of Fremont Cyn.; located E of Main Divide Road along the powerline. 395 Comment
  RSA663278  Quercus berberidifolia R. E. Riefner Jr. 2000-1-18 20 -103 Orange NCCP North Ranch Policy Plan Area: Main Divide Road; top of Gypsum Canyon. 518 Comment
  RSA663279  Quercus berberidifolia R. E. Riefner Jr., Adrian Wolf 2000-6-1 20 -454 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  RSA7679  Quercus berberidifolia Carl B. Wolf 1933-11-8 5537 Orange Trabuco Canyon along the Trabuco Truck trail Canyon. 915 Comment
  UCR231345  Quercus berberidifolia A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39935 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1152 Comment
  UCR241911  Quercus berberidifolia Fred M. Roberts 2012-5-10 7561 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
  UCR242756  Quercus berberidifolia Fred M. Roberts 2012-5-10 7689 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
  UCR145826  Quercus chrysolepis June Latting 1973-1-2 s.n. Orange Santa Ana Mountains, Silverado Canyon, 6.3 miles from Silverado Forest Station [presumably up canyon from Silverado] at 'S' curve in road 1220 Comment
  UCSB52402  Quercus cornelius-mulleri Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.; Long Cyn. along road 1.0 km. W Calif. 74; 2.3 km. SE Blue Jay Camp Ground 800 Comment
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Dec 6 2016
  CAS-BOT-BC86387  Quercus dumosa John Thomas Howell 1927-6-16 2542 Orange ridge N side of Santa Ana canyon 152 Comment
  IRVC24554  Quercus dumosa Fred M. Roberts 1987-8-6 3580 Orange San Joaquin Hills: Pelican Hill; E slope above Los Trancos Canyon; 0.4km ESE Pelican Hill survey mark. Southern Coastal 200 Comment
  UCR224164  Quercus dumosa Fred M. Roberts 2008-9-10 7097 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, north of Marguerita Drive, 0.5 km west northwest Marine Institute, Dana Point Harbor Comment
  RSA688975  Quercus engelmannii Fred M. Roberts, D. E. Bramlet 2003-4-10 5645 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  UCR177695  Quercus engelmannii Fred M. Roberts 2003-5-1 5685 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
  UCSB52410  Quercus engelmannii Roberts, Fred 1982-7-8 Orange Laguna Niguel; canyon near Pacific Island Dr., 1.4 km. ESE Aliso Peak: 1.1 km. NE Bench Mark 133 207 Comment
  UCD132263  Quercus palustris Peter Evans 2013-4-20 s.n. Orange Niguel Botanical Preserve located at 29751 Crown Valley Parkway, Laguna Niguel. 99 Comment
  UC1135890  Quercus wislizeni A. Lewis Mar 1934 363 Orange Head of Silverado Canyon Cleveland National Forest, Corona Quad. 1112 Comment
  RSA598966  Rafinesquia californica Scott D. White 1997-3-28 4838 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 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
  RSA680739  Ranunculus californicus Scott D. White 2003-3-21 8817 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA305  Ranunculus cymbalaria var. saximontanus J. T. Howell 1927-7-19 3769 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  POM6265  Ranunculus hebecarpus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2630 Orange Santa Ana River Canyon. Comment
  RSA542415  Ranunculus hebecarpus Fred M. Roberts, Karlin G. Marsh 1987-5-14 3447 Orange Upper Trabuco Canyon, Trabuco Canyon Trail, 2 km NNW Los Pinos Peak 856 Comment
  IRVC1151  Raphanus sativus J. Morgan 1965-3-20 Orange 17th St. and Irvine Ave. Costa Mesa Comment
  OBI30177  Raphanus sativus T. W. Niilus 1970-2-14 N 16 Orange 1 mi E of Yorba Linda on Imperial hwy on road cut 91 Comment
  UCR125475  Rhamnus alaternus Roger E. Reinke 2003-2-18 s.n. Orange South Coast, Newport Back Bay, Big Canyon 30 Comment
  RSA581437  Rhamnus californica subsp. californica Fred M. Roberts, Gordon Marsh 1989-5-21 4355 Orange Santa Ana Mountains: small tributary canyon to Santiago Canyon, Flemming Regional Park, just E of Modjeska, ca. 3.3 km WSW Laurel Springs. 451 Comment
  POM188038  Rhamnus ilicifolia Marcus E. Jones 1931-3-23 s.n. Orange Laguna. Comment
  UCR119305  Rhamnus tomentella subsp. tomentella R. E. Riefner Jr. 2000-8-8 20- 718 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  UCR145989  Rhus integrifolia June Latting 1977-1-12 s.n. Orange Chino Hills, Tonner Canyon 213 Comment
  CLARK-A1528-117  Rhus laurina Cesareo Perez 1971-5-4 1 Orange Villa Park Comment
  CAS-BOT-BC167931  Rhus ovata 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
  RSA30326  Rhus ovata C. B. Wolf 1941-9-21 11185 Orange Silcerado Canyon 732 Comment
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Sep 20 2013
  RSA659984  Rhus ovata Steve Teh 1994-5-20 15 Orange Modjeska Grade rd. 3/4 mile back on fire rd. Comment
  UCSB47593  Rhus ovata Roberts, Fred 1980-4-5 Orange Highway 74, San Juan Canyon, 0.4 km. SW Lower San Juan Picnic Ground, Santa Ana Mountains 390 Comment
  RSA679096  Ribes amarum Fred M. Roberts 2003-6-25 5951 Orange Santa Ana Mountains: Mojeska Peak in Upper Cold Springs Cyn., north of Main divide Truck Trail, 0.4 km ESE summit. 1471 Comment
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Jan 3 2007
  RSA0022442  Ribes amarum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49777 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CAS-BOT-BC93076  Ribes californicum var. hesperium Carl B. Wolf 1931-3-6 1849 Orange 1 mile below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mountains. 609 Comment
  UC484233  Ribes californicum var. hesperium C. B. Wolf 1931-1-30 1825 Orange Claymine Canyon Santa Ana Canyon 457 Comment
  UCR113461  Ribes californicum var. hesperium R. E. Riefner Jr. 2000-8-8 20- 720 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  UCR250134  Ribes californicum var. hesperium Dick Newell, Judy Booth 2013-12-25 345 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest, 1.5 miles NE of Maple Springs gate 722 Comment
  RSA1703  Ribes indecorum Carl B. Wolf 1931-3-6 1834 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA439664  Ribes indecorum M. B. Dunkle 1938-3-26 5235 Orange San Juan Canyon. 30 Comment
  UC484236 Image available Ribes indecorum C. B. Wolf 1931-3-6 1833 Orange 1 1/2 mi below Trabuco Oaks (Trabuco Canyon Road, w slope of mts.); Santa Ana Mts. 304 Comment
  CAS-BOT-BC402201  Ribes malvaceum R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  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
  LA205494  Ribes roezlii W. E. Pequegnat; 1937-8-11 sn Orange Santa Ana Mountains, Santiago Peak Comment
  CAS-BOT-BC173737  Ribes speciosum Ira L. Wiggins 1966-2-25 20472 Orange Firestone Boy Scouts Reservation, in hills E. of Brea Comment
  RSA733954  Ribes speciosum Unspecified 1934-2-11 s.n. Orange Black Star Canyon Rd. Comment
  UCD102509  Ribes speciosum P. B. Kennedy 1925-1-12 s.n. Orange Irvine Range. Comment
  UCR190971  Ribes speciosum A. C. Sanders, Fred M. Roberts 2008-4-22 35038 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  OBI70101  Ricinus communis D. G. Kelch 2006-12-9 6 .56 Orange Irvine. University dr along tidal Crk just E of I-73. 9 Comment
  UCD170896  Ricinus communis T. B. Salvato; Katie Kurtz 2006-10-15 1918 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue. 6 Comment
  UCR100446  Ricinus communis B. G. Pitzer 1996-4-30 2779 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA588714  Romneya coulteri Fred M. Roberts, David Mageny 1990-6-14 4683 Orange Lake Forest: Lomas de Santiago, Upper Aliso Creek, just north of El Torro Road. 5.4 kilometers S Bolero Lookout. 241 Comment
  SD234972  Romneya coulteri A. C. Sanders, T. B. Salvato 2008-5-13 35373 Orange Peninsular Range, Santa Ana Mountains: Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence (El Toro 7.5' Q) 366 Comment
  UC1607972  Romneya coulteri Donald G. Nelson 1936-6-13 435 Orange E of Anaheim on S Placentia Ave. Comment
  UC1618113  Romneya coulteri Donald G. Nelson 1936-6-5 435 Orange Hills NE of Fullerton 91 Comment
  UCR16445  Romneya coulteri K. T. Ingram 1976-5-2 s.n. Orange Peninsular Range; Santa Ana Mtns., Ortega Highway, Route 74, 12 mi. east of Hwy 405 Comment
  CAS-BOT-BC92181  Romneya coulteri var. coulteri Le Roy Abrams 1901-6-1 1852 Orange Trabuco Canon [Canyon]. Comment
  CAS-BOT-BC92182  Romneya coulteri var. coulteri J. Ewan 1929-6-28 3625 Orange Santa Ana Canyon above Santa Ana. 609 Comment
  POM394  Rorippa curvisiliqua D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  JEPS53807  Rorippa nasturtium-aquaticum Alice King 1908-1 Orange Santa Ana Comment
  RSA542400  Rosa californica Fred M. Roberts 1988-3-15 3862 Orange Rancho Mission Viejo: Upper Gabino Canyon, 3.9km ESE Point Rancho Survey Mark. 206 Comment
  UCR192115  Rosa californica A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35294 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir 277 Comment
  UCR192981  Rosa californica A. C. Sanders, Fred M. Roberts 2008-6-17 35481 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR188927  Rosmarinus officinalis Robert DeRuff 2007-11-24 s.n. Orange Newport Beach, Upper Newport Bay, North Star Beach 4 Comment
  POM2667  Rubus ursinus Philip A. Munz 1918-5-4 2219 Orange Laguna Beach. Comment
  POM366440  Rubus ursinus E. Crow 1929-4-7 289 Orange E of Orange County Park. Santa Ana Mtns. Comment
  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
  RSA0048662  Rubus vitifolius Keith E. Hoffmaster 1930-4-27 505 Orange Santa Ana Mts. [Orange or Riverside County] 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
  RSA735542  Rumex crispus A. C. Sanders, Fred M. Roberts 2008-5-6 35237 Orange Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  UCR16522  Rumex crispus J. S. Davis 1972-5-6 720506- 26 Orange Newport Beach, 1.1 miles north from corner of San Jaquin Hills Road and Back Bay Road. 200 yards east along creek bed 6 Comment
  UCR99558  Rumex crispus B. G. Pitzer 1996-4-30 2804 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 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
  RSA698483  Rumex hymenosepalus R. H. McArthur 1934-3-17 s.n. Orange Gypsum Canyon. Comment
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Dec 6 2008
  UCR221460  Rumex hymenosepalus Dick Newell, Don Millar 2010-4-27 29 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, 100 ft. east of Agua Chinon Road at a point 6 miles due north of Hwy 241 229 Comment
  RSA539350  Rumex hymenosepalus Fred M. Roberts, Karlin G. Marsh 1989-3-7 4199 Orange Lomas de Santiago: Loma Ridge, Hicks Canyon, 2.3km W Bee Survey Mark. 152 Comment
  UC217857  Rumex maritimus P. A. Munz 1922-9-2 6346 Orange Laguna Canyon 45 Comment
  POM186339  Rumex maritimus Joseph A. Ewan 1932-7-29 7734 Orange Lagoon in back of Newport Beach, above Tule marsh. Comment
  UCR113445  Rumex pulcher R. E. Riefner Jr. 2000-8-17 20- 725 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, Silverado Creek near Forest Station 328 Comment
  RSA715302  Rumex salicifolius A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33054 Orange San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 366 Comment
  UCR241052  Rumex salicifolius var. denticulatus Robert DeRuff 2004-4-16 550 B Orange South Coast, Upper Newport Bay, upper end of Big Canyon near Jamboree Rd. 14 Comment
  RSA234568  Ruppia cirrhosa James Henrickson 1970-7-24 5023 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  POM187514  Salicornia bigelovii P. A. Munz 1933-10-30 12997 Orange Seal Beach. Comment
  RSA478908  Salicornia bigelovii F. R. Fosberg 1931-8-19 7286 Orange Newport Bay. 0 Comment
  UCR25846  Salicornia bigelovii Wayne R. Ferren 1980-8-27 2329 Orange South Coast, west side of Backbay Drive, c. 1.5 km northeast of Hwy 1, along channel of Newport Backbay, Newport Beach. Comment
  RSA689541  Salicornia bigelovii R. E. Riefner 2003-8-17 3 -335 Orange Costa Mesa, marsh along Santa Ana River, west of Talbert Regional Park. 11 Comment
  SD257245  Salicornia bigelovii R. E. Riefner Jr. 2003-12-6 03 502 Orange NAD 83; 11S, 0411758E, 3722979N. Costa Mesa, marsh along W side of Santa Ana River, W of 19th Street and Balboa Ave. 9 Comment
  OBI2780  Salicornia pacifica L. Neuenschwander 1970-8-20 60 Orange 4 mi S of Seal Beach, ca 0.5 mi NE of Pacific Coast hwy at Bolsa Chica Salt Marsh Comment
  UCD99133  Salicornia pacifica A. C. Sanders 1990-10-6 10205 Orange Newport Bay, North Star County Beach area on the SW end of the bay, 2 km inland of Hwy. 1. 1 Comment
  UCR14054.1  Salicornia subterminalis Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  RSA478906  Salicornia virginica F. R. Fosberg 1931-8-19 7293 Orange Newport Bay. 0 Comment
  CAS-BOT-BC129736  Salix bonplandiana Helen D. Geis 1902-1-1 554 Orange Santa Ana Comment
  CAS-BOT-BC129738  Salix bonplandiana Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa ana River, Santa Ana Canyon 120 Comment
  POM182045A  Salix exigua Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos. 8 Comment
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Apr 11 2014
  UCR247916  Salix exigua Fred M. Roberts 2012-7-18 7675 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
  SBBG58937  Salix exigua var. hindsiana C. B. Wolf 1932-7-7 2848 Orange Rancho Santa Ana, Bixby Ave, 1 km W of Hansen Rd, near Los Alamitos 8 Comment
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Apr 11 2014
  SD1026  Salix exigua var. hindsiana Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
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Apr 11 2014
  UC454761  Salix exigua var. hindsiana I. J. Condit 1908-7-20 Orange Los Alamitos Comment
  UC536932  Salix exigua var. hindsiana Lawrence M. Booth 1932-6-9 1177 Orange 1 mi from ocean Santa Ana R. Comment
  UC537274  Salix exigua var. hindsiana Lawrence M. Booth 1932-7-19 1281 Orange Bolsas Marsh Comment
  CAS-BOT-BC108139  Salix gooddingii John Thomas Howell 1927-6-6 2439 Orange Santa Ana River bottom, Santa Ana Canyon [Canon] 152 Comment
  CAS-BOT-BC108141  Salix gooddingii H. D. Geis 1902-1-1 533 Orange Santa Ana Comment
  POM182034  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA137  Salix gooddingii J. T. Howell 1927-7-24 394 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  RSA603346  Salix gooddingii Scott D. White, B. Leatherman 1997-6-12 5324 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
  CAS-BOT-BC108203  Salix 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-BC108204  Salix hindsiana Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  RSA0038293  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 Road, near town of Los Alamitos. 7 Comment
  RSA0038336  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos. 7 Comment
  LA208695  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7681 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  LA208698  Salix laevigata Carl Hedin; Joseph Ewan 1933-3-19 7684 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  POM201831  Salix laevigata L. M. Booth 1932-12-16 1380 Orange West of Wolf's Ranch, 1/2 mile from ocean, Santa Ana River. Comment
  RSA735353  Salix laevigata R. H. McArthur 1934-3-1 s.n. Orange Santa Ana River at 1st Street. Comment
  UCR174189  Salix laevigata A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33015 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
  RSA0030858  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  CAS-BOT-BC106967  Salix lasiolepis Scott D. White 1997-3-26 4817 Orange Univ. of Calif. Irvine Campus: Site of proposed student recreation center, east of main campus. Existing Farm School and adjacent grasslands (horse pasture) between California Ave. and Culver Dr. 30 Comment
  RSA221065  Salix lasiolepis E. W. Lathrop 1966-4-6 6137 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UC537261  Salix lasiolepis L. M. Booth 1932-12-31 1384 Orange Newport Bay Comment
  UCR102629  Salix lasiolepis B. G. Pitzer 1997-4-15 3152 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
  UCR237825  Salix lasiolepis Mark A. Elvin 2003-2-2 2279 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  CAS-BOT-BC128463  Salix lasiolepis var. lasiolepis Carl B. Wolf 1932-2-15 2654 Orange Rancho Santa Ana Botanic Garden, north of administration building. 182 Comment
  CAS-BOT-BC128464  Salix lasiolepis var. lasiolepis Ira L. Wiggins 1966-3-22 20549 Orange Along stream bank, bottom of Silverado Canyon, about 5 mi above Ranger Station, Cleveland National Forest Comment
  NY284113  Salix nigra var. vallicola L. Abrams 1903-4-16 3256 Orange Santa Ana River, near Orange Comment
  SEINET4466838 Image available Salix nigra var. vallicola L. R. Abrams 1903-1 3256 Orange Comment
  RSA735359  Salix sessilifolia Keith E. Hoffmaster 1935-2-17 843 Orange Near Costa Mesa Comment
  CAS-BOT-BC126305  Salix sessilifolia Carl B. Wolf 1932-3-16 2715 Orange Rancho Santa Ana, Santa Ana River bottom 121 Comment
  CAS-BOT-BC403759  Salpichroa origanifolia E. L. Paddock 1943-5-19 12747 Orange 1 mile east of Brea Comment
  CDA3181  Salsola australis R. E. Riefner Jr. 2006-11-14 06 -672 Orange City of Irvine, San Diego Creek; vicinity of Campus Avenue at University Drive. Comment
  IRVC29830  Salsola tragus Tom McCrainie, Mark A. Elvin 2006-9-23 4 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
  POM713  Salsola tragus D. L. Crawford 1915-09 s.n. Orange Huntington Beach. Comment
  RSA728672  Salsola tragus R. E. Riefner 2007-1-20 7 -16 Orange City of Lake Forest, along Bake Pwky. at Dimension Rd. 217 Comment
  RSA584710  Salvia apiana Fred M. Roberts 1989-6-7 4378 Orange Santa Ana Mountains: Upper Gypsum Canyon along ridge between Gypsum and Blind Canyon, c. 6.3 km WSW Sierra Peak. 411 Comment
  RSA697874  Salvia apiana L. C. Hull 1934-4-27 s.n. Orange Trabuco Canyon. Comment
  UC520004  Salvia apiana J. A. Ewan 1932-7-9 7489 Orange small ravine 4 mi below Rincon; Santa Ana River Comment
  UCR193060  Salvia apiana A. C. Sanders, Fred M. Roberts 2008-6-17 35502 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA733974  Salvia columbariae Keith E. Hoffmaster 1927-4-8 423 Orange Santa Ana Mountains. Comment
  CAS-BOT-BC233675  Salvia leucophylla H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  UCR228791  Salvia leucophylla Dick Newell, Don Millar 2011-5-10 147 Orange Peninsular Range; Santa Ana Mtns., along MWD service road between Outdoor Education Center and Fremont Canyon, 0.2 mi. above Peters Cyn. Rd. 193 Comment
  HSC14361  Salvia mellifera C. L. Hitchcock, C. V. Muhlick 1964-3-17 23066 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  IRVC27011  Salvia mellifera 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
  RSA5278  Salvia mellifera B. D. Stark 1932-12-15 4454 Orange Rancho Santa Ana 145 Comment
  RSA628596  Salvia mellifera J. West 1994-4-5 s.n. Orange Upper Bluebird Canyon, SE of Laguna Beach, at a park in the hills E of the head of Bluebird Canyon Road and E of housing developments Comment
  RSA658202  Salvia mellifera T. A. Daubert 1991-5-19 652 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  UC1292282  Salvia mellifera C. L. Hitchcock and C. V. Muhlick 1964-3-17 23066 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  IRVC26757  Sambucus mexicana Peter A. Bowler 2003-4-26 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; along marsh road. Southern Coastal 6 Comment
  UCR193789  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-7-3 35691 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
  CAS-BOT-BC238824  Sambucus nigra subsp. caerulea Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal: UC San Joaquin Freshwater Marsh Reserve 6 Comment
  UCSB69268  Sambucus nigra subsp. caerulea Sanders, A.; Roberts, Fred 2008-7-3 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 (Black Star Canyon 7.5 ' Q.) 285 Comment
  RSA751310  Sanicula crassicaulis A. C. Sanders, Fred M. Roberts 2008-5-6 35267 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
  UC1377706  Sanicula crassicaulis John Ingram 1960-3-29 264 Orange 2 mi above O'Neill Park (Trabuco Canyon); Trabuco Canyon Comment
  UC1980267  Sanicula crassicaulis A. C. Sanders with Fred M. Roberts 2008-4-8 34768 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. Comment
  RSA471472  Sanicula crassicaulis Christopher Davidson 1977-5-18 5636 Orange Cleveland National Forest, Falcon campground. 1006 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
  RSA696280  Sarcocornia perennis Keith E. Hoffmaster 1934-7-15 s.n. Orange Santa Ana Mts (Modjeska) Comment
  JEPS27447  Sarcostemma cynanchoides subsp. hartwegii John Thomas Howell 1927-7-24 2819 Orange Santa Ana Canyon, Rancho Santa Ana 152 Comment
  SD173117  Satureja chandleri Juergen Schrenk 2004-5-6 N 3 Orange Santa Ana Mountains, San Juan Trail Comment
  RSA725511  Schinus terebinthifolius Fred M. Roberts 2007-9-11 6564 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
  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
  RSA0089220  Schismus barbatus Fred M. Roberts 2014-4-21 7862 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  RSA0027435  Schoenoplectus americanus Fred M. Roberts 2012-7-18 7673 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
  RSA96  Schoenoplectus americanus J. T. Howell 1927-6-30 239 Orange Bryant Ranch near Long Beach. 15 Comment
  CAS-BOT-BC111266  Schoenoplectus californicus L. M. Booth 1932-8-4 s.n. Orange Brackish water of a canal, Santa Ana River, one mile from sea. 0 Comment
  JEPS83156  Schoenoplectus californicus L. M. Booth 1932-6-9 1176 Orange Coastal Santa Ana River Comment
  POM1385  Schoenoplectus californicus D. L. Crawford 1916-8-2 736 Orange Laguna Canyon. Comment
  RSA234495  Schoenoplectus californicus James Henrickson 1970-9-5 5330 Orange 3 miles NE of Huntinton Beach just N of Bolsa Chica Salt Marsh. Sea level. 0 Comment
  UCR157695  Schoenoplectus californicus Adrian Wolf 1998-5-15 268 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  RSA91578  Schoenoplectus maritimus F. W. Peirson 1925-4-12 5749 Orange Laguna Canyon, Laguna Beach. 107 Comment
  POM50488  Schoenoplectus tabernaemontani Helen D. Geis 1902-11 s.n. Orange Unspecified. Comment
  UC537256  Scirpus maritimus Lawrence M. Booth 1932-5-30 1133 Orange Newport Lagoon Comment
  RSA716730  Scirpus microcarpus Fred M. Roberts, David E. Bramlet 2004-11-5 6131 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Gato Cyn., tributary to Cristianitos Cyn., 0.23km W Gato Gate. 102 Comment
  UCR102628  Scrophularia californica B. G. Pitzer 1997-4-15 3148 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
  RSA701800  Scrophularia californica subsp. floribunda Fred M. Roberts, David E. Bramlet 2003-6-6 5889 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.7km SW int. Cristianitos and TRW Rds. and 0.23km W of SDGandE substation. 94 Comment
  CAS-BOT-BC61963  Selaginella John Thomas Howell 1927-7-24 2834 Orange side of Calymine Canyon, n. Santa Ana Mts. 152 Comment
  IRVC3586  Selaginella bigelovii Anonymous 1965-3-11 Orange Back Bay. Newport Beach Comment
  RSA15  Selaginella bigelovii John Thomas Howell 1927-7-24 473 Orange Claymine Canyon, near Sierra Peak 167 Comment
  RSA703882  Selaginella bigelovii Fred M. Roberts, D. E. Bramlet 2004-7-30 6079 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Western slopes of Cristianitos Cyn., 0.25km W Sycamore Gate and Cristianitos Road. 151 Comment
  UCR150919  Selaginella bigelovii Valerie Soza, LeRoy Gross 1999-6-7 476 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
  IRVC25398  Selaginella cinerascens Fred M. Roberts 1987-4-3 3339 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
Read comments
Oct 17 2017
  RSA626140  Senecio aphanactis D. E. Bramlet 1998-3-11 2577 Orange UCI campus, on the UCI Ecological Reserve, located on the 303 knoll of the SW ridgeline in the reserve. Approx. 305m SW of Los Trancos Dr. and 92m N or Hwy 73, just above roadcut. 92 Comment
  POM272076  Senecio californicus Lyman Benson 1932-3-26 3199 Orange Dana Point. 60 Comment
  UC718547  Senecio californicus P. C. Everett 1935-3-15 6294 Orange near corner post 3938 (Rancho Santa Ana, Santa Ana Canyon); Rancho Santa Ana, Santa Ana Canyon 182 Comment
  UCSB48048  Senecio flaccidus var. douglasii Roberts, Fred 1981-11-15 Orange Santa Ana Mtns.: San Juan Canyon, Hwy 74, across road from entrance to Lower San Juan Picnic Ground 436 Comment
  RSA937  Senecio flaccidus var. douglasii J. T. Howell 1927-6-6 43 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  SD181682  Senecio lautus Scott D. White 1998-6-26 6783 Orange University of California Irvine; stream just north of Bonita Canyon Dr. 70 Comment
  RSA710592  Senecio linearifolius Mark A. Elvin 2003-8-24 3011 Orange Southern coastal: San Jaquin Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road. 72 Comment
  UCR146954  Senecio linearifolius Mark A. Elvin 2003-8-24 3011 Orange Southern Coastal, San Joaquin Hills, Irvine, UCI, 100 m N of the intersection of Shady Canyon Drive and Bonita Canyon Road 72 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
  RSA719406  Setaria adhaerens Fred M. Roberts, Robert L. Allen 2006-10-8 6429 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
  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
  CAS-BOT-BC243590  Setaria parviflora Ira L. Wiggins 1965-9-26 20260 Orange Roadside at west end of Orangethorpe Estates subdivision near Atwood. Comment
  RSA184127  Setaria parviflora I. L. Wiggins 1965-9-26 20260 Orange Roadside at W end of Orangethorpe Estates subdivision, near Atwood. Orange County Comment
  RSA483330  Setaria parviflora Albert J. Perkins s.n. Orange Santa Ana. Comment
  RSA0028739  Setaria verticilliformis R. E. Riefner Jr. 2004-12-12 4 -554 Orange City of Irvine, near Irvine Valley College, strawberry fields along Jeffrey Road near Irvine Center Drive. 37 Comment
  UCR236682  Setaria viridis Fred M. Roberts, Sandra L. Leatherman 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
  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
  RSA432756  Sidalcea malviflora Christopher Davidson 1977-5-18 5635 Orange Cleveland National Forest, Falcon campground. 1006 Comment
  IRVC26690  Sidalcea malviflora subsp. sparsifolia Mark A. Elvin 2004-4-4 3232 Orange UCI Arboretum Southern Coastal 15 Comment
  CAS-BOT-BC205743  Sidalcea neomexicana subsp. thurberi LeRoy Abrams 1903-4-17 3257 Orange Between Tustin and Myford Comment
  CAS-BOT-BC205744  Sidalcea neomexicana subsp. thurberi Carl B. Wolf 1936-5-25 7822 Orange East of Los Alamitos, at Northwest corner of Hansen Road & Bryant Ave. 15 Comment
  SEINET6947338  Sidalcea sparsifolia W. P. Vestal, A. G. Vestal 1955-3-24 3453 Orange Trabuco Canyon, 5 miles east of El Toro. Comment
  CAS-BOT-BC384501  Silene antirrhina LeRoy Abrams 1903-4-18 3272 Orange Trabuco arroyo, near Capistrano 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
  UCR275222  Silene coniflora A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35312 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  POM202105  Silene gallica L. M. Booth 1932-5-12 1016 Orange Newport Bay. Comment
  RSA438884  Silene laciniata subsp. major F. R. Fosberg 1931-6-2 748 Orange Silverado Canyon, Santa Ana Mountains. Comment
  RSA761927  Silene verecunda subsp. platyota Robt Allen 2003-6-22 12381 Orange Modjeska Peak, southwestern arm, 0.6 air miles southwest of the summit. 1513 Comment
  RSA653177  Silybum marianum David Barrios 1991-5-8 32 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  SEINET7882519 Image available Silybum marianum Jean Coulson 1959-1 s.n. Orange Santa Anna Mts.; 2.1 mi. E. on Esperanz Road from Orangethorpe. On S. side of road. Comment
  RSA16983  Sinapis arvensis Percy C. Everett 1936-3-20 s.n. Orange Rancho Santa Ana Botanic Garden, Santa Ana Canyon. West of Adm. Bldg. 198 Comment
  RSA0029937  Sisymbrium altissimum Fred M. Roberts 2013-5-15 7773 Orange San Joaquin Hills: Buck Gully, north slope, along south side of San Joaquin Hills Drive, 1.6 km NNW summit Pelican Hill. 174 Comment
  IRVC19418  Sisymbrium irio R. L. Allen 1983-2-12 A633 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  JEPS14822  Sisymbrium irio G. Byron Deshler 1929-2-23 Orange Yorba Linda Comment
  RSA701974  Sisymbrium officinale Fred M. Roberts, David E. Bramlet 2003-6-20 5924 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  RSA7579  Sisyrinchium bellum E. R. Johnson 1933-11 2031 Orange Rancho Santa Ana. Comment
  UCR192074  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts 2008-5-6 35250 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
  UCSB9450  Sisyrinchium bellum Lloyd, Robert 1959-4-17 Orange Santa Ana Mtn Range; 10 miles south of West Corona on the Oak Flats Fire Road 792 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
  RSA79906  Solanum americanum F. W. Peirson 1924-2-9 4523 Orange Between Wintersberg and the sea. Comment
  UCR137448  Solanum americanum Scott D. White, Brian Leatherman 1997-6-12 5309 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  UCSB48043  Solanum americanum Roberts, Fred 1981-9-26 Orange Newport Beach: Pacific Coast Highway, 0.3km W Newport Blvd.; 0.4km SE Bench Mark 10 3 Comment
  RSA184193  Solanum douglasii I. L. Wiggins 1966-2-4 20413 Orange Trabuco Canyon, about 0.5 mi. above end of open road. Comment
  UCR102001  Solanum douglasii B. G. Pitzer 1997-3-25 3035 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
  UCR230228  Solanum douglasii Dick Newell, Don Millar 2011-3-15 081 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 219 Comment
  UCR281556  Solanum douglasii Mitch Provance, Jeremiah George 2017-3-20 317- 119 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  HSC21302  Solanum douglasii D. W. Snell 1964-3-27 27 Orange 1 mi. S of Brea Reservoir on Reservoir Rd. 120 Comment
  RSA0020074  Solanum douglasii Stephen Bruff s.n. Orange Lemon Heights. Comment
  RSA422440  Solanum douglasii Claire Kibbe 1936-07 19966 Orange Santa Ana Canyon. Comment
  RSA704889  Solanum douglasii Doug Causey 1972-5-1 s.n. Orange 3 mi. E Irvine Lake Comment
  SDSU11166  Solanum douglasii R. M. Beauchamp 1968-2-17 774 Orange On slope on west side of El Toro Road, 7 miles east of Interstate 5. Comment
  RSA23641  Solanum elaeagnifolium E. R. Johnson 1939-4-25 9499 Orange Santa Ana Canyon. Rancho Santa Ana , along Santa Fe R.R. tracks south of Exp. citrus plot. 122 Comment
  RSA450870  Solanum lanceolatum Gordon Marsh, Karlin G. Marsh 1976-4-8 s.n. Orange Tustin, First Street. Vacant lot west of Post Office. Comment
  CDA18785  Solanum mauritianum Anna C. Helm 2000-5-1 PDR 1223083 Orange E. Mayfair Ave., Orange. 0 Comment
  UCR136650  Solanum nigrum F. W. Peirson 1924-2-9 4523 Orange South Coast, between Wintersburg and the sea 9 Comment
  JEPS12147  Solanum umbelliferum Alice King May, 1908 Orange Santa Ana Mountains Comment
  RSA427453  Solanum umbelliferum E. Crow 1929-2-22 169 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  RSA550607  Solanum umbelliferum Fred M. Roberts Jr., Carol A. Roberts 1989-4-20 4307 Orange upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5 km. SE Los Pinos Peak 980 Comment
  RSA587879  Solanum umbelliferum Fred M. Roberts 1990-5-8 4622 Orange Chino Hills: Soquel Canyon, c.a. 1.4 km N Gilman Peak. 335 Comment
  RSA733735  Solanum umbelliferum Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach Comment
  UCR191429  Solanum umbelliferum A. C. Sanders, Fred M. Roberts 2008-4-8 34780 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
  UCSB18243  Solanum umbelliferum Daniel, Dick 1964-3-28 Orange Silverado Canyon Road, 5.1 miles NW from junction with Santiago Canyon Road, approximately 10 miles W of Irvine Lake, 17 miles by air E of Orange 365 Comment
  RSA798089  Sonchus asper R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49582 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR191214  Sonchus asper A. C. Sanders 2008-4-29 35146 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
  IRVC929  Sonchus oleraceus R. Salcido 1965-5-8 Orange Corona del Mar. Newport Beach Comment
  RSA730994  Sonchus oleraceus Fred M. Roberts 2006-11-15 6468 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  SEINET179461  Sonchus oleraceus Lawrence Booth 1932-6-15 1193 Orange East of Huntington Beach, Marsh border Comment
  UC537123  Sonchus oleraceus Lawrence M. Booth 1932-7-21 1297 Orange Anaheim Marsh Comment
  RSA696190  Sonchus oleraceus Keith E. Hoffmaster 1928-3-9 s.n. Orange Santa Ana Comment
  POM201512  Sorghum bicolor L. M. Booth 837 Orange Santa Ana Canyon Comment
  SEINET998621  Sorghum bicolor R. E. Riefner Jr. 2005-1 05 -710 Orange South Coast: Irvine, Irvine Blvd. at The Groves RD. (Tustin 7.5' Q) 84 Comment
  CAS-BOT-BC235345  Sorghum halepense Ira L. Wiggins 1965-10-18 20277 Orange Vacant lot NE corner of Chapman Ave. and Victor Dr., Fullerton Comment
  IRVC23086  Sorghum halepense Fred M. Roberts 1985-6-25 1967 Orange Santiago Park, Santiago Creek at Valencia Street. Santa Ana Mountains 45 Comment
  SEINET182547 Image available Sorghum halepense L. M. Booth 1932-1 1265 Orange Edge of field, Cota Mesa. Orange county. Comment
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Nov 1 2018
  UCSB48224  Sorghum halepense Roberts, Fred 1981-6-24 Orange San Juan Capistrano; 3.2 km. S. Saddleback Community College on Rancho Viejo Road 42 Comment
  RSA483174  Spartina foliosa Anonymous 1914-7-6 31 Orange Growing in salt marsh at Newport Comment
  RSA603015  Spartina foliosa L. C. Wheeler 1933-10-21 2220 Orange Near Newport Bay: 15 Comment
  UCD92997  Spartina foliosa F. M. Reed 1927-11-23 5676 Orange at Anaheim. Comment
  RSA0097080  Spergularia B. Pitzer 1996-4-30 2784 Orange Upper Newport Bay: California Department Fish & Game Ecological Reserve, off (W of) Jamboree Road. 6 Comment
  RSA0097854  Spergularia bocconi Steve Boyd, Timothy S. Ross 1992-5-19 7431 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail in Aliso Canyon. 335 Comment
  RSA0097842  Spergularia macrotheca L. R. Abrams 1903-4-17 3258 Orange Between Tustin and Myford. Comment
  CAS-BOT-BC390309  Spergularia macrotheca var. macrotheca Scott D. White 1997-3-26 4821 Orange Univ. of Calif. Irvine Campus: Site of proposed student recreation center, east of main campus. Existing Farm School and adjacent grasslands (horse pasture) between California Ave. and Culver Dr. 30 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
  RSA0098428  Spergularia macrotheca var. macrotheca R. E. Riefner 1994-8-1 94 -567 Orange S end of San Clemente State Beach. Comment
  RSA47078  Spergularia rubra Albert J. Perkins 1926-4-27 14728 Orange SAnta Ana, Mr. Perknis yard Comment
  RSA5910  Spergularia salina C. B. Wolf 1932-7-2 3817 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA0011085  Spergularia salina James Snow 1932-1 6 Orange Bryant Ranch, near Long Beach. Station no. 4. Comment
  RSA0097293  Spergularia salina Keith E. Hoffmaster 1935-2-17 842 Orange Prob[ably] near Costa Mesa, at bluff by Santa Ana River. Comment
  UCR186146  Sphaeralcea emoryi var. emoryi Robert DeRuff 1994-4-24 452 Orange Southern Coast, Newport Beach, Newport Back Bay, at top and bottom of a draw between 23rd St. and the Delhi Channel 5 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
  SBBG119215  Sporobolus indicus R. E. Riefner 2004-12-12 04 -553 Orange Jeffrey Rd near Irvine Center Drive, City of Irvine 36 Comment
  JEPS62961  Stachys ajugoides L. M. Booth 1932-5-19 Orange Newport Bay Comment
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Oct 19 2017
  RSA571521  Stachys ajugoides var. rigida Steve Boyd, D. L. Banks 1994-4-5 8276 Orange Southern Santa Ana Mountains along the ridgeline between Lucas and Verdugo Canyons west of Verdugo Potrero, near transit point Lucas . 427 Comment
  SBBG105052  Stachys rigida S. Boyd, D. Banks 1994-4-5 8276 Orange ridgeline between Lucas and Verdugo Cyns W of Verdugo Potrero, near transit point "Lucas" 426 Comment
  POM4078  Stachys rigida subsp. quercetorum P. A. Munz 1918-5-4 2213 Orange Laguna Beach Comment
  RSA446585  Stachys rigida subsp. quercetorum Unspecified 1920-6-1 s.n. Orange Laguna. Comment
  RSA562760  Stachys rigida subsp. quercetorum Steve Boyd, T. S. Ross 1992-5-19 7436 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  RSA0026253  Stachys rigida subsp. rigida Fred M. Roberts 2013-6-12 7797 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  RSA681  Stachys rigida subsp. rigida J. T. Howell 1927-7-3 261 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA797911  Stachys rigida subsp. rigida Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49821 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA0119681  Stellaria media Fred M. Roberts 2015-3-10 7924 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  UCR222383  Stellaria media Mark A. Elvin 2003-1-26 2238 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA696565  Stellaria media Marjorie Smith s.n. Orange High School Campus. Comment
  UCR163512  Stephanomeria B. G. Pitzer, T. Tennant 1997-11-8 3370 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
  RSA684404  Stephanomeria diegensis Scott D. White, Matt Carlton 2003-11-20 9878 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  UCR80004  Stephanomeria diegensis Scott D. White 1992-10-20 969 Orange Vicinity of city of Brea, Immediately north of Carbon Canyon Rd & east of Placentia Avenue +-1mi (air) SSEof Tonner Canyon. 183 Comment
  UCR197706  Stephanomeria exigua subsp. deanei A. C. Sanders, Fred M. Roberts 2008-9-18 36083 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  RSA699169  Stephanomeria virgata J. Vlahos 1933-10-5 s.n. Orange French Hill. 5 mi. east of airport. Comment
  RSA439  Stillingia linearifolia J. T. Howell 1927-7-5 271 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  UCR177439  Stipa cernua Scott D. White, Amanda Duchardt 2003-3-27 8864 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  UCR2803  Stipa lepida F. M. Reed 1922-4-30 4723 Orange Arch Beach 229 Comment
  SD144498  Stipa miliacea Scott D. White 1997-3-28 4826 Orange Santa Ana Mtns: Above Modjeska Canyon: along Harding Cyn Truck Trail, near Modjeska Cyn Rd and wash crossing. 424 Comment
  SACT002403  Stipa pulchra Herbert Copeland 1938-6-28 Orange Hills back of Laguna Beach. 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
  RSA588651  Stylocline gnaphaloides Fred M. Roberts, Carol A. Roberts 1990-5-23 4659 Orange Santa Ana Mts.: West Fork, Upper Long Canyon, Main Divide Truck Trail, 4.3 km SE Los Pinos Peak. 753 Comment
  CAS-BOT-BC422881  Stylomecon heterophylla Agnes M. Bowman 1899-5-1 s.n. Orange Santiago Cr. Comment
  UCR58633  Styrax officinalis var. redivivus Reid Moran, D. Axelrod, Bob Smart 1975-7-18 22599 Orange Santa Ana Mtns., N slope of ridge, upper Trabuco Canyon 900 Comment
  POM256723  Styrax redivivus W. Pequegnat 1940-6-14 s.n. Orange Yaeger's Meadow. Santa Ana Mountains 915 Comment
  RSA763837  Styrax redivivus Doris Bowers 1971-4-19 1695 Orange Santa Ana Mts. 762 Comment
  RSA798091  Styrax redivivus Robert F. Thorne, E. W. Lathrop, Walter 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
  RSA5824  Suaeda calceoliformis C. B. Wolf 1932-6-28 3798 Orange 100 ft. east of pump house at East End Camp. 9 Comment
  RSA5866  Suaeda calceoliformis C. B. Wolf 1932-9-13 4020 Orange Bryant Ranch. 3/10 miles W of Los Alamitos Blvd.700 ft. south of Bryant Ave., (800 ft. east & 700 ft. south of NW corner of SW 1/4 sec. 30 T4S R11W) 7 Comment
  SD80942  Suaeda californica var. pubescens James Henrickson 1970-7-25 5028 Orange 3.5 miles northwest of Huntington Beach on sandy margin of Bolsa Bay. Comment
  CAS-BOT-BC438783  Suaeda esteroa R. E. Riefner, Jr. 2012-11-6 12 -533 Orange City of Newport Beach, Newport Bay, North Star Beach, near Newport Aquatic Center, White Cliffs Dr./ N. Star Ln. 2 Comment
  POM202729  Suaeda esteroa L. M. Booth 1932-12-13 1373 Orange Newport Bay. Comment
  RSA624495  Suaeda esteroa L. C. Wheeler 1933-10-21 2223 Orange Newport Bay. 3 Comment
  SD247403  Suaeda esteroa R. E. Riefner Jr. 2012-11-6 12 533 Orange City of Newport Beach, Newport Bay, North Star Beach near Newport Aquatic Center, White Cliffs Dr./N. Star Lane. 2 Comment
  UCSB58942  Suaeda esteroa Sanders, A. 1990-10-6 Orange Newport Bay, North Star County Beach area; on the SW end of the bay; ca. 2 km. inland of Hwy. 1 3 Comment
  RSA5956  Suaeda moquinii C. B. Wolf 1932-7-7 3850 Orange Bryant Ranch, 600 ft. N of Bixby Ave., 1 mi. W. of Hansen Road., (600 ft. N and 100 ft. W. of S.E. corner of N.E. 1/4 of N.E. 1/4 of Sect. 33) Comment
  POM259490  Suaeda taxifolia A. C. Keller 1937-11-26 s.n. Orange Loc. Alt. 20 to 40 ft. on cliffs, Doheny Palisades, Highway 101 Comment
  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
  RSA234501  Suaeda taxifolia James Henrickson 1970-7-25 5028 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
  SD38037  Suaeda taxifolia F. Detmers 1932-3-23 2624 Orange South of Huntington Beach Comment
  UC284809  Suaeda taxifolia P. A. Munz 1923-4-1 7320 Orange 2 mi nw Laguna (Laguna Beach); Laguna Beach Comment
  UCD99537  Suaeda taxifolia Ronni Stachelek; Bob Anderson, Frances Schropshire 1995-3-23 51 Orange Newport Beach, Upper Newport Bay, Back Bay Dr., ca. 100 m. N of San Joaquin Dr. Comment
  UCSB44182  Suaeda taxifolia Henneman, J. 1977-5-21 Orange Newport Back Bay Comment
  UCR94530  Symphoricarpos albus var. laevigatus Steve Boyd, T. S. Ross 1994-9-14 8355 Orange Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucas Canyon trail crossing. 305 Comment
  RSA220963  Symphoricarpos mollis E. W. Lathrop 1966-4-18 6177 Orange Santa Ana Mountains, 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA5378  Symphoricarpos mollis B. D. Stark 1932-12-30 4461 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA696584  Symphoricarpos mollis R. H. McArthur 1934-4-7 s.n. Orange Ladd Canyon. Comment
  RSA789199  Symphyotrichum defoliatum Naomi Fraga, Duncan S. Bell, Sarah J. De Groot 2009-9-11 3155 Orange Santa Ana Mountains, Blue Jay Campground. 910 Comment
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Jan 29 2015
  UC729886  Symphyotrichum defoliatum Carl B. Wolf 1932-7-7 3851 Orange .3 mi w, (2 mi e of sw corner of nw 40 of ne 160 of sec, Bryant Ranch Bixby Ave) Hansen Rd. Comment
  CAS-BOT-BC98283  Symphyotrichum subulatum var. parviflorum David D. Keck 1932-9-30 1911 Orange San Clemente, south side of town along highway. Comment
  RSA603310  Tamarix ramosissima Scott D. White, B. Leatherman 1997-6-12 5336 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 junction. 46 Comment
  SD255071  Tauschia parishii R. F. Thorne, E. W. Lathrop 1977-5-18 49743 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  RSA539421  Tetradymia comosa Fred M. Roberts, Doug Willick 1988-9-16 4134 Orange Peralta Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.1 km N Robbers Peak 177 Comment
  RSA734694  Tetradymia comosa A. C. Sanders, Fred M. Roberts 2008-6-17 35501 Orange Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UCR158465  Tetragonia tetragonoides Adrian Wolf 1998-5-27 237 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
  CAS-BOT-BC438221  Tetragonia tetragonoides Louis C. Wheeler 1934-1-14 2354 Orange Laguna Beach 1 Comment
  RSA696451  Tetragonia tetragonoides Kenneth Beard s.n. Orange Along irrigation ditch Tower street-Santa Ana Comment
  UCSB7014  Thalictrum fendleri var. polycarpum Lloyd, Robert 1959-4-17 Orange 10 miles south of West Corona, on the Oak Flats Fire Road; Mt. Range: Santa Ana 792 Comment
  CAS-BOT-BC399741  Thalictrum polycarpum Alice Eastwood; John Thomas Howell 1937-4-24 3923 Orange 2 miles east of San Juan Hot Springs Comment
  RSA399576  Thalictrum polycarpum M. B. Dunkle 1936-3-28 4707 Orange Silverado Canyon. Comment
  CDA7722  Thelesperma megapotamicum E. L. Paddock Aug 1942 Orange Jessie Lee Toler Ranch, north side of Ocean Avenue at Cajon Drive, La Habra. 0 Comment
  UCSB50697  Thinopyrum intermedium Roberts, Fred 1982-7-20 Orange Santa Ana Mtns., Main Divide Extension 1.0km NE by road from Falcon Group camp. 1000 Comment
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Aug 30 2018
  CAS-BOT-BC66958  Thysanocarpus laciniatus Helen D. Geis 1902-5-1 s.n. Orange Santiago Canyon. Comment
  IRVC21678  Toxicodendron diversilobum Fred M. Roberts 1975-4-1 75 -30 Orange San Juan Canyon, 2.4km ENE San Juan Guard Station, Santa Ana Mountains 290 Comment
  SBBG128685  Toxicoscordion fremontii R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49661 Orange northern Santa Ana Mtns, Comment
  UCR79272  Tragopogon porrifolius Steve Boyd, T. S. Ross 1992-5-19 7437 Orange S Santa Ana Mtns, San Mateo Canyon Wilderness Area. W edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon trail, downstream to confluence with Aliso Canyon. 335 Comment
  RSA39398  Tragopogon porrifolius P. A. Munz 1947-4-25 11700 Orange in orange grove near pumping plant for domestic water. Rancho Santa Ana. 122 Comment
  RSA708535  Tribulus terrestris Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6103 Orange Caspers Wilderness Park, Hot Springs Cyn., Hot Springs Trail, c.a. 0.16km WSW San Juan Ranger Station, north of SR 74. 212 Comment
  CAS-BOT-BC220820  Trichostema lanatum A. M. White 1974-6-1 1386 Orange Ca. 20 mi. E. of Santa Ana, North of Silverado Canyon Comment
  RSA12897  Trichostema lanatum E. R. Johnson 1935-1-14 62287 Orange Ridge between Sierra Pk. and Skyline Drive, Santa Ana Mtns. 854 Comment
  RSA447108  Trichostema lanatum Albert J. Perkins 1916-6-15 s.n. Orange Silverado Canyon. Comment
  RSA447111  Trichostema lanatum Anstruther Davidson 1921-1 s.n. Orange Laguna. Comment
  RSA699168  Trichostema lanatum Kenneth Beard 1934-05 s.n. Orange Ladd Canyon. Comment
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Oct 31 2011
  RSA789198  Trichostema lanceolatum Naomi S. Fraga, Duncan S. Bell, Sarah J. De Groot 2009-9-11 3156 Orange Santa Ana Mountains, Blue Jay Campground. 1024 Comment
  UCR72994  Trichostema lanceolatum John Wear, E. E. Cardiff, T. Rado 1991-8-24 s.n. Orange Yorba Linda, Bastanchury Road extension alignment. Comment
  IRVC14752  Trifolium ciliolatum A. S. Boughey 1968-4-16 228 Orange Santiago Canyon/Lower Modjeska Cyn, Fleming Property. Santa Ana Mountains Comment
  POM8449  Trifolium depauperatum var. truncatum L. R. Abrams 1903-4-18 3264 Orange Capistrano Comment
  RSA734020  Trifolium gracilentum A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34614 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 280 Comment
  IRVC20187  Trifolium microcephalum Karlin G. Marsh 1983-5-19 s.n. Orange Laguna Beach: Sycamore Hills; canyon immediately N of Sycamore Canyon. Southern Coastal Comment
  UCR174188  Trifolium obtusiflorum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33027 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
  UC454707  Trifolium willdenovii I. J. Condit 1908-7-25 Orange Huntington Beach Comment
  IRVC16832  Trifolium willdenowii Charles W. Sexton 1964-5-17 s.n. Orange Holy Jim Canyon. Santa Ana Mountains Comment
  CAS-BOT-BC451772  Triglochin maritima Peter H. Raven 1957-9-28 11380 Orange At north limits of Surfside Comment
  RSA415941  Tropidocarpum gracile M. B. Dunkle 1935-2-10 4331 b Orange El Toro. 61 Comment
  LA205668  Turricula parryi W. Pequegnat; 1937-8-10 3 Orange Santa Ana Mountains, Santiago Peak Comment
  UCR230832  Turricula parryi Dick Newell, Judy Booth 2011-6-19 180 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 1086 Comment
  RSA791489  Typha angustifolia Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49636 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA383392  Typha domingensis George R. Johnstone 1929-8-15 s.n. Orange Anaheim Landing, marsh, Orange County Comment
  POM48020  Typha domingensis I. M. Johnston 1924-8-29 s.n. Orange 3 miles north of Balboa Comment
  RSA85198  Typha domingensis F. W. Peirson 1924-8-29 5075 Orange 3 miles from Balboa Beach. Comment
  RSA21615  Typha latifolia Carl B. Wolf 1937-9-25 9369 Orange Rancho Santa Ana, Santa Ana canyon, Irrigation canal at Head of Ex Cypress planting. 122 Comment
  RSA21618  Typha latifolia Carl B. Wolf 1937-9-25 9369 Orange Rancho Santa Ana, Santa Ana canyon, Irrigation canal at Head of Ex Cypress planting. 122 Comment
  OBI30188  Umbellularia californica Don Holland 1971-3-24 P. 047 Orange Trabuco Cyn approx 7 mi from Santiago Cyn rd past upper campground chaparral 427 Comment
  RSA5341  Umbellularia californica B. D. Stark 1933-1-4 4494 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. Altitude 1000-1500 ft. 305 Comment
  UCR258626  Urtica dioica Fred M. Roberts 2014-7-25 7892 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
  UCR27101  Urtica urens Jan West 1982-4-22 s.n. Orange El Toro, roadside ditch SE of the U.S. Marine Corps Air Facility, north of Culver Drive and within c. 1 mi of the very large hanger. Comment
  CAS-BOT-BC404335  Urtica urens Ira L. Wiggins 1965-11-5 20331 Orange On N side of Chapman Avenue near Kraemer Road Comment
  UCSB47982  Urtica urens Roberts, Fred 1980-2-17 Orange Corner of Calle Arroyo and Calle Siega near San Juan Creek south of Highway 74, San Juan Capistrano 39 Comment
  RSA443848  Venegasia carpesioides Karlin G. Marsh 1984-2-21 s.n. Orange Casper's Regional Park: Upper Lucas Canyon Comment
  UCR152763  Verbena bracteata D. E. Bramlet 2003-6-8 3463 A Orange South Coast, Fairview Park in Costa Mesa, 152 m west of Canyon School and 396 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  UCR102626  Verbena lasiostachys B. G. Pitzer 1997-4-15 3145 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
  UCR247913  Verbena lasiostachys var. scabrida Fred M. Roberts 2012-7-18 7680 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
  UCR99552  Verbena lasiostachys var. scabrida B. G. Pitzer 1996-4-30 2797 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UCR186592  Verbena rigida Robert DeRuff 2000-5-24 521 Orange Southern Coast, Newport Beach, Newport Back Bay, upper Big Canyon near Jamboree Rd. 9 Comment
  RSA709699  Verbesina dissita Scott D. White, Jennifer H. Jones 2005-4-26 10971 Orange City of Laguna Beach. 549 Nyes Place. Undeveloped lot within a residential neighborhood. Proposed for new home. Comment
  UC52267  Verbesina dissita Mrs. M. F. Bradshaw May 1903 Orange near Arch Beach Comment
  UCR228778  Veronica anagallis-aquatica Dick Newell, J. Booth 2011-5-29 168 Orange South Coast, San Juan Capistrano, along San Juan Creek above La Novia Ave. 31 Comment
  UC1618063  Veronica peregrina Donald G. Nelson 1935-7-15 299 Orange Costa Mesa. Tracy locality Comment
  RSA599586  Veronica peregrina subsp. xalapensis Fred M. Roberts 1995-4-21 4934 Orange Irvine: North of Quail Hill near jct of University and I-5 Hwy, 1.8 km NE of French Hill. 40 Comment
  IRVC24911  Vicia americana var. americana Fred M. Roberts, G. A. Marsh 1986-6-6 2985 Orange Black Star Canyon, Black Star Canyon Rd., 2.7km by road below summit; 3.6km S Sierra Peak, Santa Ana Mountains 646 Comment
  UCR144415  Vicia ludoviciana Scott D. White, Amanda Duchardt 2003-4-10 9021 Orange Santa Ana Mountians Foothills, Ridges and E-facing canyons above Trampas Canyon 152 Comment
  RSA735965  Vicia sativa Scott D. White, Justin M. Wood 2008-4-24 11909 Orange Chino Hills: SCE powerline corridor, SE of Carbon Canyon Rd and N of Chino Hills State Park. 366 Comment
  UCR177692  Vicia villosa Fred M. Roberts 2003-5-1 5683 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.60 km SSW Gato Gate and 0.16 km west of Cristianitos Rd. 93 Comment
  RSA680740  Vicia villosa subsp. varia Scott D. White 2003-3-21 8799 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA0065516  Viola odorata Doug Bell 1949-2-5 s.n. Orange Garden Grove. 182 Comment
  RSA304245  Viola pedunculata James R. Shevock 1970-3-25 64 Orange Near Irvine Lake. 152 Comment
  UC1121611  Viola pedunculata A. Lewis Feb 1934 263 Orange Santa Ana Canyon 152 Comment
  RSA801968  Viola pedunculata Keith E. Hoffmaster 1936-5-3 718 Orange Santa Ana Mtns. Santiago Peak. PR8. Comment
  RSA412749  Viola purpurea subsp. purpurea Christopher Davidson 1977-5-18 5624 Orange Santa Ana Mts. Cleveland Nat. Forest. Bear Springs 1220 Comment
  JEPS50477  Viola sheltonii Frank W. Peirson 1923-5-6 3496 Orange along trail from Trabuco Canyon (Santiago Peak); Santiago Peak 1676 Comment
  RSA0121738  Vitis girdiana E. W. Lathrop 1966-5-13 6299 Orange Santa Ana Mountains. 5 miles east of Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA743374  Vulpia myuros var. myuros Fred M. Roberts 2008-4-9 6854 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  RSA548868  Vulpia octoflora Fred M. Roberts 1988-4-10 3911 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout., UTM 37 31 1000m N, 4 39 600m E. 415 Comment
  RSA773499  Vulpia octoflora Fred M. Roberts 1999-5-14 5219 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout 451 Comment
  SEINET11770035  Wolffiella lingulata Unknown 1904-1 4200 Orange San Juan Creek, San Juan Capistiano by the Sea Comment
  CAS-BOT-BC77784  Woodwardia fimbriata Ira L. Wiggins 1966-2-4 20416 Orange Trabuco Canyon, about 1/2 mi. above end of open road Comment
  RSA797817  Woodwardia fimbriata R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49806 Orange Santa Ana Mountains: Trabuco Canyon Comment
  CAS-BOT-BC77777  Woodwardia fimbriata G. A. Marsh; K. G. Marsh 1976-7-8 s.n. Orange Santa Ana Mountains, 2.7 mi. e. of San Juan Guard Station on Cal. Rt. 74 Comment
  POM201742  Xanthium spinosum L. M. Booth 1932-7-1 1240 Orange Anaheim Marsh Comment
  RSA735545  Xanthium spinosum A. C. Sanders, Fred M. Roberts 2008-6-17 35475 Orange Lomas de Santiago, East Loma Ridge Spur Road near Hicks Cyn. Haul Rd. 353 Comment
  UCR46562  Xanthium spinosum B. G. Pitzer, D. C. Hawks 1986-10-21 0343 Orange Peninsular Ranges; Santa Ana Mountains, Lomas de Santiago, c. 10 mi east of Santa Ana along Jeffrey Rd. in Hicks Canyon, c. 1.0 mi north of South Coast Gun Club 183 Comment
  RSA160503  Xanthium spinosum J. D. Olmsted 1959-8-26 834 Orange Along road south of mouth of Black Star Canyon north of Rock Crushing Plant. 305 Comment
  UCR193043  Xanthium strumarium A. C. Sanders, Fred M. Roberts 2008-6-17 35483 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, East Loma Ridge Spur Road c. 600 m NW of Hicks Cyn. Haul Rd. 408 Comment
  POM47589  Xanthium strumarium I. M. Johnston 1924-8-29 s.n. Orange 1 mi. N of Los Alamitos. Comment
  RSA696052  Xanthium strumarium Anonymous 1928-1 s.n. Orange Santa Ana River flats. Comment
  UCR3181  Yucca whipplei Chuck Elliott 1964-5-15 s.n. Orange 0.25 mi [west of] past [Riverside] county line on Hwy 91 toward beach into Orange County 244 Comment
  RSA378360  Yucca whipplei var. whipplei Christopher Davidson 1977-5-18 5625 Orange Santa Ana Mts. Cleveland Nat. Forest. Bear Springs 1220 Comment
  CAS-BOT-BC454216  Zannichellia palustris John Thomas Howell 1927-8-13 2988 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  CHSC116484  Zeltnera venusta R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49576 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA378409  Zigadenus fremontii Albert J. Perkins 1914-4-13 s.n. Orange Santiago Peak. Comment
  RSA378461  Zigadenus fremontii J. C. Marvin 1923-4-1 s.n. Orange Trabuco Canyon Comment
  RSA594893  Zigadenus fremontii Fred M. Roberts, Sandy Leatherman, Brian Leatherman 1994-4-24 4906 Orange Santa Ana Mountains: San Juan Canyon, south side of CA route 74, 1.2 kilometers SW Lower San Juan Picnic Ground. 390 Comment
  POM1014  Zostera marina I. M. Johnston 1918-8-3 2145 Orange Laguna Beach, Orange County Comment
  POM180498  Zostera marina Le Roy Abrams 1917-6-23 6570 Orange Balboa Comment



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