Search Results — 2000 specimen records retrieved (1617 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC229406  Abronia umbellata Marcus E. Jones 1924-8-26 s.n. Orange Newport Comment
  RSA234508  Abronia umbellata James Henrickson 1970-7-24 5008 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  SDSU8415  Abronia umbellata subsp. umbellata R. M. Beauchamp 1967-3-19 319 Orange Growing in sandy area south of the west end of the airstrip at Sherman Field. Comment
Read comments
May 21 2013
  RSA38697  Abutilon theophrasti E. L. Paddock 1943-9-10 s.n. Orange Santa Fe Railroad, west of Esperanza Station 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
  RSA651416  Acacia longifolia Doug Bell 1949-2-12 s.n. Orange Garden Grove. 182 Comment
  RSA337340  Acalypha californica Steve Boyd, L. LaPre 1981-5-27 s.n. Orange N end of the Santa Ana Mountains along power line road on ridges E of Weir Canyon and the head of Gypsum Canyon. Comment
  IRVC7  Acer macrophyllum D. Frees 1965-3-13 s.n. Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  SD127435  Acer macrophyllum Reid Moran, Jack Reveal and Bob Smart 1975-7-18 22595 Orange Near Yeager Mine, upper Trabuco Canyon, Santa Ana Mountains 725 Comment
  RSA631402  Achnatherum coronatum Valerie L. Soza, LeRoy Gross 1999-6-7 491 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA599651  Achyrachaena mollis Fred M. Roberts 1995-4-21 4932 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.5 km ENE French Hill. 52 Comment
  UCSB48021  Acmispon americanus Roberts, Fred 1980-7-1 Orange Irvine; San Diego Creek, 0.2 km NE Interstate 5; 2.0 km WSW Bench Mark 343 85 Comment
  SD212599  Acmispon heermannii var. heermannii A. C. Sanders, Fred M. Roberts and Michelle Balk 2006-7-20 33005 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
  RSA788924  Acourtia microcephala Fred M. Roberts 1999-7-1 5246 Orange Peninsular Range, Santa Ana Mtn.s Region: Lomas de Santiago; Lomas Ridge north of Dripping Springs Cyn., 1.1 km NW Dripping Springs and 2.1 km WSW Silverado School. 433 Comment
  SEINET2429609  Acourtia microcephala Lawrence M. Booth 1932-7-4 1243 Orange Newport Lagoon Comment
  LA31221  Adenostoma fasciculatum David S. Verity; 1960-2-14 sn Orange one small area on ridge near summit of Temple Hills Dr. on E. slope of ridge, San Juaquin Hills behind Laguna Beach Comment
  RSA790698  Adenostoma fasciculatum Jeanne Paxton 1934-4-21 5 Orange Modjeska Canyon. PR8. Comment
  SD247725  Adenostoma fasciculatum R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49680 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 456 Comment
  RSA5280  Adenostoma fasciculatum var. fasciculatum B. D. Stark 1932-12-15 1700 Orange Rancho Santa Ana 145 Comment
  RSA687673  Adiantum capillus-veneris Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  RSA739279  Adiantum capillus-veneris R. E. Riefner 2008-7-9 08 -228 Orange Orange County: city of Newport Beach, N Star Beach, vicinity of N Star Ln and White Cliffs Dr. 4 Comment
  UCR247503  Adiantum capillus-veneris R. E. Riefner Jr. 2008-7-9 08- 218 Orange South Coast, Laguna Beach, bluff area west of West St and Pacific Coast Hwy 11 Comment
  POM188247  Adiantum jordanii Marcus E. Jones 1931-3-23 28426 Orange Laguna Comment
  RSA84993  Adiantum jordanii F. W. Peirson 1924-5-31 4666 Orange 5 miles SE of Laguna Beach. Comment
  UCR215286  Adiantum jordanii Fred M. Roberts 2008-5-14 6960 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
  POM869  Adiantum jordanii E. Robinson, Crocker 1916-3-28 s.n. Orange Santa Ana Mtns. Comment
  UCR222973  Aeonium haworthii Robert DeRuff 2009-1 412 Orange South Coast, Upper Newport Bay, north Eastbluff area, bluff c. 100 m from Eastbluff Drive 12 Comment
Read comments
Dec 21 2019
  CAS-BOT-BC295625  Agnorhiza ovata P. C. Everett 1935-6-18 7198 Orange Santa Ana Mts., Main Divide Motorway, Los Pinos Potrero 914 Comment
  SEINET3916500  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-7-16 35851 Orange Penninsular Range; Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon.; 0 325 Comment
  UCD53225  Agrostis pallens R. Tofsrud 1951-4-1 s.n. Orange Orange-San Diego County borders: Santa Ana Mts. Comment
  UCR192990  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-6-17 35490 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
  UC537288  Agrostis viridis Lawrence M. Booth 1932-6-7 1163 Orange Newport Lagoon Comment
  RSA698217  Allionia Kenneth Beard s.n. Orange Santa Ana riverbank Comment
  IRVC26680  Allium Mark A. Elvin 2004-4-4 3214 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA573292  Allium ampeloprasum Steve Boyd, Timothy S. Ross 1994-9-14 8349 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Lucas Canyon. 317 Comment
  UCR132990  Allium haematochiton Adrian Wolf 2000-5-4 466 Orange Santa Ana Mtns., North Ranch Policy Plan Area, ridgeline between upper Gypsum and Fremont Canyon, Main Divide Road, overlooking upper Fremont Cyn. 726 Comment
  IRVC26677  Allium haematochiton Mark A. Elvin 2004-4-4 3213 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA13134  Allium praecox Percy C. Everett, E. R. Johnson 1935-5-29 7092 Orange Santa Ana Mountains, head of claymine canyon. 762 Comment
  RSA410099  Allophyllum glutinosum Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak. Comment
  RSA759103  Allophyllum glutinosum Robt. Allen, Genevieve Walden 2008-6-26 s.n. Orange Modjeska Peak, Western Arm, adjacent to junction of Main Divide Truck Trail and Old Truck Trail up to the summit of Modjeska Peak 1538 Comment
  SEINET2444446  Allophyllum glutinosum Steve Boyd, Tim Ross 1992-5-20 7452 Orange Southern Santa Ana Mountains. San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09). 305 Comment
  RSA708720  Alnus rhombifolia Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6121 Orange Caspers Wilderness Park, Hot Springs Creek in San Juan Cyn., c.a. 0.36km SSW San Juan Ranger Station, at SR 74 crossing. 197 Comment
  UCR239642  Alnus rhombifolia Fred M. Roberts 2012-5-9 7557 Orange Santa Ana Mountains, Lake Forest, along Serrano Creek hiking trail, 1.0 m south-southwest of intersection of Commercentre and Dimension Drives 171 Comment
  CLARK-A1528-917  Amaranthus albus Patricia A. Andrews 1975-6-26 5914 Orange Capistrano Bay Beach 9 Comment
  UCR44898  Amaranthus albus B. G. Pitzer, L. F. LaPre 1986-10-20 0313 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  POM121853  Amaranthus albus Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA5812  Amaranthus albus C. B. Wolf 1932-6-28 3770 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  SD245232  Amaranthus albus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49593 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Margins of San Juan Creek. Comment
  UC537268  Amaranthus blitoides Lawrence M. Booth 1932-7-25 1309 Orange Santa Ana River, 0.5 mi from ocean Santa Ana River Comment
  UCSB48240  Amaranthus blitoides Roberts, Fred 1981-7-21 Orange Rancho Mission Viejo; Calif. Rte. 74, 9.2 km. ENE San Juan Capistrano 100 Comment
  UCD97455  Amaranthus deflexus A. C. Sanders 1999-10-31 23225 Orange South Coast: Mission San Juan Capistrano, near intersection of Ortega Highway (Hwy 74) and El Camino Real. Near confluence of San Juan Creek and Arroyo Trabuco. 61 Comment
  RSA592066  Amaranthus deflexus R. E. Riefner 1995-7-27 95 -318 Orange S bluff area of San Clemente Beach. Comment
  CLARK-A1528-1399  Amaranthus hybridus Alfred R. Roos 1937-12-2 Orange Santa Ana Comment
  RSA184132  Amaranthus powellii I. L. Wiggins 1965-10-24 20293 Orange Yorba Linda Blvd. 1/4 mi. E of State College Blvd., Fullerton. Comment
  POM201937  Amaranthus powellii subsp. powellii L. M. Booth 1932-7-21 1295 Orange Anaheim Creek Comment
  IRVC8602  Amblyopappus pusillus J. B. Anderson 1966-4-16 577 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  RSA614339  Amblyopappus pusillus B. Pitzer 1996-4-30 2795 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (Pacific Coast Hwy). Bluffs above the beach. Comment
  UCR270998  Amblyopappus pusillus Mitch Provance, Travis Kegel 2016-4-8 416- 62 Orange Coastal Regions of Southern California, Newport Beach, W of the W end of 16th Street, and E of the Banning Oil Fields 32 Comment
  CAS-BOT-BC13606  Ambrosia acanthicarpa Ira L. Wiggins 1965-11-6 20351 Orange Near Well No. 14, Kraemer Oil Estates, near end of road leading to Rancho Santa Ana. Comment
  UCR186134  Ambrosia acanthicarpa T. B. Salvato, Katie Kurtz 2006-10-15 1916 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  RSA791492  Ambrosia acanthicarpa R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49612 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station Comment
  CAS-BOT-BC13773  Ambrosia chamissonis David D. Keck 1933-9-8 2543 Orange Sunset Beach Comment
  RSA93931  Ambrosia chamissonis F. W. Peirson 1921-1-9 1320 Orange Balboa Beach. Comment
  UCSB10360  Ambrosia chamissonis var. bipinnatisecta Norman Haller 1953-4-25 Orange collected 2.0 mi S, along U. S. Highway 101 Huntington Beach - U. S. Highway 101, and Huntington Beach Comment
  POM201785  Ambrosia psilostachya L. M. Booth 1932-7-19 1277 Orange Bolsas Marsh. Comment
  RSA184158  Ambrosia psilostachya I. L. Wiggins 1965-10-27 20304 Orange Roadside and along creek bank, just SW of Los Angeles Co. line, on Brea Canyon Rd. Comment
  RSA696744  Ambrosia psilostachya Anonymous 1934-09 s.n. Orange [Unspecified] Comment
  SD263545  Ambrosia psilostachya Jim Riley 2013-10-15 119 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UC537039  Ambrosia psilostachya Lawrence M. Booth 1932-7-19 1277 Orange Bolsas Marsh Comment
  RSA7640  Amorpha californica E. R. Johnson 1933-11-3 s.n Orange Bedford Peak Firebreak and Silverado Motorway at Main Divide. Comment
  SBBG14802  Amorpha californica P. H. Raven 1962-5-18 17752 Orange Silverado Cyn Truck Trail 7.3 mi above Gate 1280 Comment
  CAS-BOT-BC180619  Amorpha californica var. californica P. C. Everett 1935-6-19 7235 Orange 1/2 mi. below (W.) head of canyon, Trabuco Canyon, Santa Ana Mts. 1066 Comment
  UC1234767  Amorpha californica var. californica Peter H. Raven 1962-5-18 17752 Orange Silverado Canyon Truck Trail 7.3 mi above Gate; Santa Ana Mountains 1280 Comment
  JEPS35488  Amorpha fruticosa John Thomas Howell 1927-6-6 2449 Orange Rancho Santa Ana Santa Ana Canyon, Santa Ana River bottom 152 Comment
  RSA697898  Amorpha fruticosa R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA703704  Amorpha fruticosa Fred M. Roberts, David E. Bramlet 2004-7-30 6090 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy Cristianitos Canyon, along Cristianitos Ck., 0.93 km SSW Gato Gate and 0.23 km W Cristianitos Road. 76 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
  UCR192461  Amsinckia intermedia A. C. Sanders, Fred M. Roberts 2008-3-25 34529 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR222382  Amsinckia intermedia Mark A. Elvin 2003-1-26 2236 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UCR223429  Amsinckia intermedia Dick Newell, Don Millar 2011-2-15 061 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  UCR230842  Amsinckia intermedia Dick Newell, Don Millar 2011-3-24 093 Orange South Coast, Huntington Beach, just south of Weider Park, 1.2 mile NE of Seapoint and Pacific Coast Hwy, slope overlooking Bolsa Chica 6 Comment
  RSA0127613  Amsinckia menziesii Fred M. Roberts 2016-4-26 8044 Orange Lomas de Santiago: South of Santiago Canyon Road in tributary to Lower Presida Canyon just southwest of Irvine Lake, 2.2 km S Irvine Lake dam spillway and 0.6 km SW Irvine Lake Park. 265 Comment
  IRVC228  Amsinckia menziesii var. intermedia I. L. Wiggins 1966-3-4 20495 Orange Santa Ana Canyon], Riverside Fwy, 4.5mi E Newport Fwy exit; in full sun, [annual grassland]. Anaheim Comment
  RSA732166  Anagallis arvensis A. C. Sanders, Fred M. Roberts 2008-4-8 34729 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  RSA792563  Anagallis arvensis Justin M. Wood 2011-2-28 3270 Orange South Coast: Santa Ana River, marsh just upstream of Pacific Coast Highway. Plants collected throughout the marsh and along the adjacent bike path. 0 Comment
  UCR102025  Anagallis arvensis B. G. Pitzer 1997-3-25 3016 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR192464  Anagallis arvensis A. C. Sanders, Fred M. Roberts 2008-3-25 34532 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA465158  Anagallis arvensis N. C. Cooper 1944-6-4 1353 Orange San Juan Canyon, lower camp ground. 457 Comment
  CDA5468  Anagallis monelli J. McNeill 1969-4-1 3035 Orange Upper Newport Bay. Comment
  RSA678725  Andropogon glomeratus Fred M. Roberts, Carol A. Roberts, Robert Allen 2001-8-4 5518 Orange Santa Ana Mountains: San Juan Canyon at confluence with Viejo Cyn., on San Juan Creek below Calif. Rte. 74, 4.0km WnW Sitton Peak., (33 35' 41 N, 117 29' 14 W; T6S,R6W,SE/4 SE/4 Sect. 34) 287 Comment
  UCSB56513  Andropogon glomeratus Marsh, G.; Marsh, K. 1977-11-21 Orange Santa Ana Mtns; San Juan Hot Springs Comment
  CAS-BOT-BC400328  Anemopsis californica A. C. Sanders; Fred M. Roberts 2008-8-7 35986 Orange Peninsular Range; Santa Ana Mtns.: lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  POM201883  Anemopsis californica L. M. Booth 1932-6-4 1142 Orange Newport Lagoon. Comment
  RSA700044  Anemopsis californica Kenneth Beard s.n. Orange East of S. A. River on Edinger Road Comment
  SD41483  Anemopsis californica Edith A. Purer 1932-8-31 4873 Orange Orange County near Route #101, moist depression in sand Comment
  UCD137875  Anemopsis californica E. Frost 1996-5-11 12 Orange Newport Back Bay, 150 yards in along bike path. 7 Comment
  CAS-BOT-BC400330  Anemopsis californica Carl B. Wolf 1932-6-28 3803 Orange Bryant Ranch, edge of field and road (Bixby Ave.) 750 ft. E. of S.W. corner of N.W.40 of N.W.160 of Sect. 33 T4S. R11W. Comment
  JEPS13328  Anthemis cotula L. M. Booth 1932-5-15 1200 Orange Coastal Santa Ana Basin Comment
  UC536891  Anthemis cotula Lawrence M. Booth 1932-5-15 1200 Orange Santa Ana River Santa Ana River Comment
Read comments
Aug 21 2007
  RSA0045566  Anthemis cotula Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  UC1012126  Antirrhinum coulterianum F. W. Pennell and Carl Epling 1940-4-21 25147 Orange 5 mi e San Juan Capistrano (Route 74) 60 Comment
  RSA737891  Antirrhinum multiflorum R. E. Riefner 2008-6-3 08 -139 Orange Irvine Ranch Reseve, N Irvine Ranch, E Fork cliffs at upper Fremont Canyon along Black Star SCE road. Irvine Ranch Reseve, N Irvine Ranch, E Fork cliffs at upper Fremont Canyon along Black Star SCE road. 618 Comment
  RSA737898  Antirrhinum multiflorum R. E. Riefner 2008-6-17 08 -159 Orange Irvine Ranch Reserve, N Irvine Ranch, Middle Fremont Canyon along Black Star SCE road. 618 Comment
  UCR203910  Antirrhinum multiflorum R. E. Riefner Jr. 2008-7-21 08- 248 Orange Santa Ana Mountains, Irvine Ranch Reserve, North Irvine Ranch, middle Fremont Canyon, east slope along Black Star SCE Road 718 Comment
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Sep 5 2010
  RSA737889  Antirrhinum multiflorum R. E. Riefner 2007-6-29 07 -286 Orange Irvine Ranch Reseve, N Irvine Ranch, E Fork cliffs at upper Fremont Canyon along Black Star SCE road. 579 Comment
  SBBG6704  Antirrhinum nuttallianum J. M. Tucker 1941-5-30 260 Orange Ortega Hwy (St Hwy 74), 2 to 3 mi E of W boundary of Cleveland Nat Forest Comment
  JEPS4277  Antirrhinum nuttallianum subsp. nuttallianum Alice King May 1908 Orange Newport Beach Comment
  JEPS4288  Antirrhinum nuttallianum subsp. nuttallianum Lawrence M. Booth 1932-7-7 1260 Orange s of Huntington Beach Comment
  RSA588656  Antirrhinum nuttallianum subsp. nuttallianum Fred M. Roberts, Carol A. Roberts 1990-5-23 4651 Orange Santa Ana Mtns: West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5 km SE Los Pinos Peak. 756 Comment
  RSA698988  Antirrhinum strictum Unspecified 1935-04 s.n. Orange Silverado Canyon. Comment
  UCR203989  Aphanisma blitoides Fred M. Roberts 2008-3-12 6736 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
  RSA749299  Apiastrum angustifolium Fred M. Roberts 1999-4-21 5184 Orange Lomas de Santiago: Loma Ridge, ridges north of Dripping Springs Cyn., 1.5 km W Silverado Sch. and 4.8 km NNW Bolero Lookout. 365 Comment
  RSA38679  Aquilegia formosa P. A. Munz 1946-10-26 11619 Orange Botanic Garden. Comment
  UCR63783  Araujia sericifera Megan Phillips, D. Mitchell 1990-8-3 s.n. Orange Peninsular Range; Santa Ana Mtns., Hicks Canyon wash, Lomas de Santiago, SW of Rattlesnake Reservoir 76 Comment
  CAS-BOT-BC128676  Arbutus menziesii Carl B. Wolf 1933-11-8 2008 Orange Trabuco Canyon on south wall opposite the Trabuco Truck Trail, Santa Ana Mts. 914 Comment
  RSA629337  Arctostaphylos glandulosa Jon E. Keeley 1992-6-12 15520 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  UCD166561  Arctostaphylos glandulosa Dylan O. Burge 2016-2-23 2090 Orange Santa Ana Mountains, vicinity of Blue Jay Campground, along spur off of Long Canyon Road. 1060 Comment
  CAS-BOT-BC23108  Arctostaphylos glandulosa subsp. glandulosa L. R. Abrams 1901-6-15 s.n. Orange Mt. Dante a So summit Comment
  CAS-BOT-BC402202  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49708 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  IRVC1253  Arctostaphylos glandulosa subsp. glandulosa A. S. Boughey 1965-3-16 63 Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC21236  Arctostaphylos glandulosa subsp. glandulosa Fred M. Roberts 1984-2-12 1182 Orange Santa Ana Mtns: 0.1km SW of Falcon Group Camp; 2.0km ESE Los Pinos Peak. Peninsular Ranges 1000 Comment
  POM254919  Arctostaphylos glandulosa subsp. glandulosa W. Pequegnat 1940-6-19 s.n. Orange Head of West Ladd Canyon, Santa Ana Mts. Comment
  RSA16475  Arctostaphylos glandulosa subsp. glandulosa P. C. Everett 1935-6-19 7232 Orange Main divide motorway. Upper sonoran or arid transition. Sun, W. slope, sandstone. 1280 Comment
  RSA629323  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15504 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  SD247632  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49683 Orange Northern Santa Ana Mountains; Coal Canyon [NW of Sierra Peak] 456 Comment
  RSA5328  Arctostaphylos glandulosa subsp. zacaensis B. D. Stark 1933-1-4 4486 Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  SEINET10449249  Arctostaphylos otayensis James S. Miller 2001-12-15 Miller 10648 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
Read comments
Jan 17 2020
  RSA607257  Arctotis venusta L. C. Wheeler 1933-10-21 2224 Orange Newport Bay. 3 Comment
  RSA652146  Argemone munita J. Bruce Smiley 1940-5-7 s.n. Orange Santa Ana Wash. 457 Comment
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Mar 10 2013
  CAS-BOT-BC401733  Argemone munita subsp. robusta Carl B. Wolf 1937-12-3 9382 Orange Santa Ana Mts., main divide motorway, between Santiago Peak and Modjeska Peak 1645 Comment
  RSA18605  Argemone munita subsp. robusta Carl B. Wolf 1937-12-3 9382 Orange Main divide motorway. Between Santiago Peak and Modjeska Peak. 1646 Comment
  UCR215291  Aristida adscensionis Fred M. Roberts, D. E. Bramlet 2008-5-13 6953 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  UCSB52468  Aristida adscensionis Roberts, Fred; Marsh, K. 1983-2-25 Orange Laguna Beach, Goff Ridge, southern Temple Hill, 0.9 km NNE Goff Island 263 Comment
  RSA588773  Aristida purpurea var. parishii Fred M. Roberts, Carol A. Roberts, D. Bontrager 1990-4-28 4590 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
  RSA663207  Aristida purpurea var. parishii R. E. Riefner 2000-8-3 20 -709 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge. 534 Comment
  UCR130489  Aristida purpurea var. parishii R. E. Riefner Jr. 2000-7-7 00- 629 Orange Santa Ana Mtns., North Ranch Policy Plan Area, on ridgeline overlooking upper west fork of Fremont Canyon; east of Main Divide Road and SE from Windy Ridge cypress forest 348 Comment
  UCD56385  Aristida ternipes var. gentilis D. E. Bramlet; Fred Roberts 2003-3-13 3336 Orange Donna O'Neill Reserve, north east ridgeline 762 m west of Cristianitos Rd., and 1.15 km north of the E-W Access Road. 198 Comment
  RSA588883  Aristida ternipes var. hamulosa Fred M. Roberts, Dave Bontrager 1990-6-5 4672 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
  RSA539377  Arrhenatherum elatius Fred M. Roberts 1988-6-10 4098 Orange Modejeska Peak, 0.8 km SW summit along crest, UTM 3730400mN, 449100mE, alt. 1548 m. 1548 Comment
  RSA5961  Artemisia biennis C. B. Wolf 1932-9-13 4037 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike & Well in SE 1/4 sect. 25. 1300 ft W of n.E. corner of S.E. 1/4 Sect. 25. T4S R12W. 6 Comment
  IRVC486  Artemisia californica A. Adams 1965-5-2 Orange Newport Beach, Corona del Mar, Little Corona Beach. Southern Coastal Comment
  LA202978  Artemisia californica Joseph Andorfer Ewan; 1932-7-28 7710 Orange above salt marsh flat, E end of Newport Bay Comment
  RSA781180  Artemisia californica T. B. Salvato 2010-10-27 5124 Orange Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 52 Comment
  SD240837  Artemisia californica T. B. Salvato 2010-9-27 5124 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Drive and Cove Road, beyond the end of Green Lantern Street, overlooking Dana Point Harbor (Dana Point 7.5'Q) 60 Comment
  SEINET227962  Artemisia californica Leila M. Shultz 1980-5-2 4040 Orange Orange County: foothills south of Diamond Bar, Chaparral. 213 Comment
  UC536946  Artemisia californica Lawrence M. Booth 1932-7-27 1327 Orange Newport Bay Comment
  SEINET10953172  Artemisia californica Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-7-21 Bennett 440 Orange Cultivated plants collected in and around the condominium - Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  CAS-BOT-BC90267  Artemisia douglasiana John Thomas Howell 1927-8-13 2989 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  JEPS36924  Artemisia douglasiana L. M. Booth 1932-7-23 1302 Orange Corona del Mar Comment
  SEINET3285075 Image available Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-9-18 36075 Orange Peninsular Range; Santa Ana Mtns. Foothills; Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  HSC79305  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 61 Comment
  RSA443828  Artemisia tridentata Gordon Marsh, Karlin G. Marsh 1978-5-20 s.n. Orange Santa Ana Mountains, Coal Canyon, near canyon mouth, extreme north end bordering Santa Ana Canyon Comment
  IRVC408  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
  RSA234505  Arthrocnemum subterminale James Henrickson 1970-7-25 5048 Orange 2.5 miles NE of Huntington beach, 1 mile SE of Warner Ave. on sandy slope of E. Pacific Coast Hwy. at border of Bolsa Chica Salt Marsh. 0 Comment
  RSA478872  Arthrocnemum subterminale F. R. Fosberg 1931-8-19 7283 Orange Newport Bay. 0 Comment
  POM48005  Arthrocnemum subterminale I. M. Johnston 1924-8-29 s.n. Orange Corona Del Mar Comment
  CDA23125  Arundo donax Mark A. Elvin, D. G. Kelch 2006-12-9 5310 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  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
  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
  IRVC19485  Aspidotis californica Karlin G. Marsh, G. A. Marsh 1982-10-23 Orange Canyon Acres Canyon; shaded, rocky slopes at base of cliffs north of creek. Laguna Beach Comment
  RSA562611  Aster radulinus Steve Boyd, Fred M. Roberts 1992-10-14 7715 Orange Northern Santa Ana Mountains, vicinity of Oak Flats (aka Oat Flats) northeast of the junction of Main Divide Road and Skyline Road, just west of Riverside County line 800 Comment
  CDA23617  Aster subulatus var. ligulatus A. Thomas, Mark A. Elvin 2006-9-23 609232 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  UC592754  Astragalus brauntonii Carl B. Wolf 1936-6-22 8000 Orange n slopes Sierra Pk (Claymine Canyon Truck Trail to Sierra Pk); Santa Ana Mts., n slopes Sierra Pk 457 Comment
  POM21172  Astragalus didymocarpus Helen D. Geis 1902-03 s.n Orange Santiago Creek bed. Comment
  UCR234139  Astragalus trichopodus Dick Newell, Don Millar, Judy Booth 2012-4-25 246 Orange South Coastal Plain, Muth Interpretive Center, upper Newport Bay, Newport Beach 9 Comment
  RSA278304  Astragalus trichopodus var. lonchus C. W. Tilforth 1979-5-23 1808 Orange Mouth of Aliso Canyon, south Laguna. Comment
  CAS-BOT-BC194063  Astragalus trichopodus var. lonchus George H. Vansell 1936-5-7 s.n. Orange Trabuca Creek, N of San Juan Capistrano Comment
  RSA2991  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-3 s.n Orange Botany garden. (RSA?) Comment
  RSA90711  Astragalus trichopodus var. lonchus F. W. Peirson 1923-9-8 4044 Orange Trabucco Canyon. 427 Comment
  HSC14541  Astragalus trichopodus var. phoxus C. L. Hitchcock 1966-3-15 24141 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  CDA23091  Atriplex Mark A. Elvin, D. G. Kelch 2006-12-9 5306 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  UC1980258  Atriplex R. E. Riefner Jr. 2008-3-24 08 -67 Orange City of Seal Beach, Bolsa Chica Salt Marsh, Warner Ave. at Pacific Coast Highway. Comment
  UC1980276  Atriplex R. E. Riefner Jr. 2006-2-12 06 -24 Orange North end of City of San Clemente, along I-5 Freeway North, immediately south of Camino de Estrella exit ramp. Comment
  UCR203904  Atriplex amnicola R. E. Riefner Jr. 2008-5-25 08- 118 Orange South Coast, San Clemente, vicinity of Camino de Los Mares and Calle Nuevo 45 Comment
  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
  RSA743666  Atriplex amnicola R. E. Riefner 2007-10-26 7 -455 Orange City of San Clemente, vicinity of Calle Vicente and Ave. Vaquero. 40 Comment
  POM633  Atriplex californica D. L. Crawford 1926-07 s.n. Orange Laguna Beach region Comment
  SEINET3930302  Atriplex californica F. A. MacFadden 1931-3-1 2927 Orange Laguna Beach.; 0 Comment
  RSA615542  Atriplex californica Robb Hamilton 1989-7-20 s.n. Orange Newport Beach: along Pacific Coast Hwy just west of jct with Newport Blvd. 0 Comment
  RSA256  Atriplex canescens J. T. Howell 1927-7-29 519 Orange Near east boundary of Rancho Santa Ana. 152 Comment
  SD133121  Atriplex canescens A. C. Sanders 1990-10-6 10193 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2.0 km inland of Highway 1. 0 Comment
  CAS-BOT-BC170193  Atriplex canescens subsp. canescens Joseph Andorfer Ewan 1932-7-28 7707 Orange Seaward bluffs at Corona del Mar. Comment
  SD144473  Atriplex canescens var. canescens B. Pitzer 1996-4-30 2789 Orange Crystal Cove State Park, S of City of Irvine on Hwy 1 (Pacific Coast Hwy). Comment
  CAS-BOT-BC172634  Atriplex coulteri P. A. Munz 1918-5-5 2178 Orange Laguna Beach Comment
  POM654  Atriplex coulteri L. R. Abrams 1903-4-18 3270 Orange Near San Juan Capistrano Comment
Read comments
Feb 4 2009
  RSA655236  Atriplex coulteri D. E. Bramlet 1998-5-25 2628 Orange 120m north of the Newport Beach Library and 61m west of McArthur Blvd. 914m south of San Miguel Drive. 15 Comment
Read comments
Feb 3 2015
  UCR37775  Atriplex coulteri Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  UCR202430  Atriplex glauca R. E. Riefner Jr. 2002-5-4 02- 91 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  UCR203881  Atriplex glauca R. E. Riefner Jr. 2006-3-19 06- 52 Orange South Coast, city of Newport Beach, near Avocado Ave. and San Nicolas Dr., west of MacArthur Blvd. 77 Comment
  RSA737232  Atriplex glauca R. E. Riefner 2005-12-13 05 -784 Orange City of Lake Forest, 0l5 miles N of Alton Pwy on E side of SR 241. 230 Comment
  SD233800  Atriplex glauca W. Ferren 1991-12-2 EPA 17 Orange San Juan Creek Highway 74 at bridge for San Juan Creek, San Juan Capistrano. Comment
  HSC4336  Atriplex lentiformis J. W. Johnson 1961-3-30 Orange Newport Beach, lower slope of S cliff by Bay Rd. and Big Canyon. Comment
  UCR201712  Atriplex leucophylla Dick Newell 2009-1-1 09- 001 Orange South Coast, Huntington Beach, Bolsa Chica State Park, 1/2 mile west of Seapoint and Pacific Coast Highway 3 Comment
  POM656  Atriplex pacifica D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  RSA232240  Atriplex rosea James Henrickson 1970-8-29 s.n. Orange 2 iles north of Huntington Beach, along Pacific Coast Highway. ca. 1 3/4 mile SE of Warner Ave. 0 Comment
  CDA23155  Atriplex semibaccata Mark A. Elvin, D. G. Kelch 2006-12-9 5296 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  HSC34526  Atriplex semibaccata J. D. Ackerman, A. M. Montalvo 1974-3-28 167 Orange S Laguna, by S Laguna Sanitary Station Comment
  HSC4356  Atriplex semibaccata J. W. Johnson 1961-3-30 Orange Newport Beach, at base of S cliff along N side of Big Canyon. Comment
  SD253974  Atriplex semibaccata Jim Riley 2013-10-15 121 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UCR222630  Atriplex semibaccata T. B. Salvato 2010-10-27 5105 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
  UCSC000222  Atriplex semibaccata I. J. Condit 2008-7-20 s.n. Orange Los Alamitos Comment
  RSA184160  Atriplex semibaccata I. L. Wiggins 1965-10-24 20280 Orange Roadside along Skyline Drive near intersection with Raymond Street, Fullerton. Comment
  RSA5952  Atriplex serenana C. B. Wolf 1932-7-7 3849 Orange Bixby Ave., 0.7 mile W of Hansen road (0.2 mile W of SE corner of NE/4 of NW/4). 8 Comment
  RSA5955  Atriplex serenana C. B. Wolf 1932-7-7 3846 Orange Bixby Ave., 0.7 mile W of Hansen road (0.2 mile W of SE corner of NE/4 of NW/4). 8 Comment
  CAS-BOT-BC140679  Atriplex suberecta Tom Perring; Tracy Pinckard 1994-3-2 s.n. Orange South Coast: Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd. 11 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
  SEINET4136211  Atriplex suberecta Tom Perring, Tracy Pinckard 1994-3-2 s.n. Orange South Coast: Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd.; 0 11 Comment
  IRVC29085  Atriplex suberecta Tom Perring, Tracy Pinckard 1994-3-2 s.n. Orange Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd. South Coast 11 Comment
  RSA65393  Atriplex subspicata F. W. Peirson 1924-8-29 s.n. Orange 2.5 miles from Balboa Beach on road inland along creek Comment
  IRVC29817  Atriplex triangularis Mary H. White 2006-9-23 92306 3 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
  RSA678508  Atriplex watsonii Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1100 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 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
  UCR14050  Atriplex watsonii Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  RSA734992  Avena barbata A. C. Sanders, T. B. Salvato 2008-5-13 35378 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UC1130900  Avena barbata A. Lewis Apr 1934 395 Orange San Joaquin Hills Corona Quadrangle Comment
  UCR193000  Avena barbata A. C. Sanders, T. B. Salvato 2008-5-13 35378 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
  POM202370  Avena barbata L. M. Booth 1932-5-12 1040 Orange Newport Bay. Comment
  RSA781941  Avena fatua Mark A. Elvin 2003-2-23 2316 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  SD220023  Avena fatua Mark A. Elvin 2004-5-2 3421 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvin campus center. 3 Comment
  IRVC29728  Azolla filiculoides Mark A. Elvin, Barry S. Nerhus 2006-11-4 5240 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA13  Azolla filiculoides John Thomas Howell 1927-7-6 284 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  IRVC22750  Azolla filiculoides Fred M. Roberts 1985-5-15 3026 Orange San Joaquin Hills: Laguna Canyon; Laguna Lakes, northernmost pond, south margin, 5km ENE Signal Peak. southern coastal 114 Comment
  IRVC15200  Baccharis douglasii Karlin G. Marsh 1977-9-16 Orange Huntington Beach: Huntington Cental Park, Shipley Nature Center southern coastal Comment
  IRVC29725  Baccharis douglasii Mark A. Elvin, Barry S. Nerhus 2006-11-4 5256 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  IRVC25220  Baccharis emoryi Fred M. Roberts 1986-10-31 3197 Orange Seal Beach Naval Weapons Station: Anaheim Bay, vicinity of Hog Island. on berm along margin of upper coastal salt marsh. southern coastal 0 Comment
  RSA788  Baccharis emoryi J. T. Howell 1927-10-22 764 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA788806  Baccharis emoryi R. F. Thorne 1977-11-21 49981 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  JEPS21246  Baccharis glutinosa L. M. Booth 1932-6-28 1222 Orange Bolsas Creek Comment
  RSA653414  Baccharis malibuensis R. E. Riefner, A. Wolf 2000-8-23 20 -732 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
Read comments
Jan 6 2018
  RSA741697  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08 -173 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Rd. 470 Comment
  RSA741700  Baccharis malibuensis R. E. Riefner Jr. 2008-7-17 08 -241 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Rd. 600 Comment
  CAS-BOT-BC99445  Baccharis pilularis B. Pitzer; T. Tennant 1997-11-8 3376 Orange Crystal Cove State Park: Pelican Point Area, grassland area between Pacific Coast Hwy & the bike trail 30 Comment
  RSA549989  Baccharis pilularis Scott D. White 1992-9-23 84 Orange Vicinity of Olinda, near city of Brea, immediately N of Carbon Cyn Rd & E of Placentia Ave.; ca. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  RSA731920  Baccharis pilularis Fred M. Roberts, Sandy Leatherman 2007-11-27 6659 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
  SD253901  Baccharis pilularis Jim Riley 2013-12-10 134 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  UCR209677  Baccharis pilularis A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37204 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along SW side of Santiago Canyon Rd. near south edge of Irvine Lake 252 Comment
  POM350366  Baccharis salicifolia N. C. Cooper 1949-3-18 3166 Orange Santa Ana Canyon 244 Comment
  RSA357002  Baccharis salicifolia R. F. Thorne 1975-4-6 45577 Orange Head of Newport Bay. Comment
  SEINET5642762  Baccharis salicifolia Shelby J. Wood 2013-3-9 16 Orange Huntington Beach, Central Park.; 0 Comment
  RSA587883  Baccharis salicifolia Fred M. Roberts 1990-5-8 4616 Orange Soquel Canyon, 1.2km NNW Gilman Peak 240 Comment
  UCD129396  Baccharis salicina P. B. Kennedy 1925-1-12 1 Orange Irvine Ranch, on range. Comment
  UCD129399  Baccharis salicina A. C. Sanders 1990-10-6 10199 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1. 1 Comment
  RSA699555  Baccharis viminea Minor Warne 1934-02 s.n. Orange Santa Ana Mountains Comment
  CAS-BOT-BC443960  Bacopa monnieri R. E. Riefner, Jr. 2012-7-1 12 -295 Orange City of Mission Viejo, Oso Creek, ca. 1.3 mi N of Paseo De Colinas Ave. on Camino Capistrano Ave. 87 Comment
  CAS-BOT-BC334499  Bahiopsis laciniata R. E. Riefner, Jr. 2013-4-5 13 -56 Orange Anaheim Hills, vicinity Hidden Canyon Rd. at Avenue De Santiago 305 Comment
  RSA113261  Barbarea orthoceras E. K. Balls 1955-4-4 20427 Orange 2.7 miles SW from Orange Riverside county line, along Hwy 74, San Juan Capistrano to Elsinore. 305 Comment
  JEPS57450  Bassia hyssopifolia L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2044 Orange across U.S. Highway 101 from Huntington State Beach (Bolsas Marsh, n of Newport Beach); n of Newport Beach, , Bolsas Marsh Comment
  POM259529  Bassia hyssopifolia A. C. Keller, F. F. Gander 1938-7-25 s.n. Orange Dike south of San Diego. Comment
  RSA5447  Bassia hyssopifolia C. B. Wolf 1932-9-13 4025 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd., (Triangle waste ground at NW corner of SW 1/4 sect. 30 T4S R11W) 8 Comment
  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
  CAS-BOT-BC75515  Batis maritima C. B. Wolf 1934-7-29 6041 Orange Newport Bay. 0 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
  POM201706  Batis maritima L. M. Booth 1932-6-9 1184 Orange Newport Bay. Comment
  UC1779705  Batis maritima Rudolf Schmid 1999-7-14 1999 -6 Orange Bolsa Chica Marsh, S of Seal Beach. From the S side of parking lot by HW1. Comment
  UCR130498  Batis maritima R. E. Riefner Jr. 2003-8-17 03- 336 Orange South Coast, Costa Mesa, salt marsh along Santa Ana River, west of Talbert Regional Park 11 Comment
  UCSB21667  Batis maritima Keefe, Joseph 1967-3-26 Orange South side of Newport Bay, on Back Bay Drive, 2.0 miles northeast of junction with Jamboree Drive, Corona del Mar 3 Comment
  POM17862  Bebbia juncea Philip A. Munz 1923-7-8 73226 Orange Santa Ana River Canyon Comment
  UCR37789  Bebbia juncea Steve Boyd, L. LaPre 1981-5-27 s.n. Orange Santa Ana Mtns., Northern end of the Santa Ana Mtns., along powerline road on ridges east of Weir Canyon & at the head of Gypsum Canyon. Comment
  SD143950  Beta vulgaris Scott D. White 1993-3-5 1128 Orange Marine Corps Air Station, southeast of Red Hill Ave. and northeast of Barranca. 14 Comment
  IRVC24282  Bidens laevis Fred M. Roberts, G. A. Marsh 1985-10-26 2519 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  RSA488143  Bidens laevis Fred M. Roberts, Gordon Marsh 1985-10-26 2519 Orange Santa Ana River: adjacent to Huntington Beach: 0.7 km SSW Adams St bridge 4 Comment
  IRVC20225  Bidens pilosa Fred M. Roberts, K. G. Marsh 1982-10-18 834 Orange Temple Hill, east margin of Top of the World School, Laguna Beach 295 Comment
  RSA730988  Bidens pilosa var. pilosa Fred M. Roberts 2006-11-15 6462 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  RSA698737  Bloomeria crocea L. C. Hall 1934-4-1 s.n. Orange Panerama Heights Comment
  RSA367329  Bloomeria crocea var. crocea N. C. Cooper 1944-6-4 1343 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA553114  Bloomeria crocea var. crocea Fred M. Roberts, Carol A. Roberts 1989-5-11 4346 Orange Santa Ana Mountains: Upper Blind canyon, east fork, along power line maintainance road, 3.9km SE Walnut Reservoir. 381 Comment
  CAS-BOT-BC31016  Bolboschoenus maritimus Helen D. Geis 1902-11-1 s.n. Orange Santa Ana Peat Lands. Comment
  UCR146418  Bolboschoenus maritimus subsp. paludosus Sandra L. Leatherman 1998-9-3 48 Orange Coastal Plains & Basins; South Coastal Plain, Dana Point: Monarch Beach, northeast of the intersection of State Highway 1 and Crown Valley Parkway, and west of Salt Creek 30 Comment
  UCR61919  Bolboschoenus maritimus subsp. paludosus Richard A. Marin 1971-5-11 71- 80 Orange Irvine, corner of MacArthur Blvd. & University Drive Comment
  UC536806  Bolboschoenus robustus Lawrence M. Booth 1932-5-24 1105 Orange Newport Lagoon Comment
  RSA639703  Bothriochloa barbinodis Scott D. White, P. DeVries 1998-12-10 7203 Orange Brea: Tonner Canyon and adjacent slope, just east of 57 Freeway crossing. 137 Comment
  UCD169656  Bothriochloa barbinodis R. F. Thorne; E. W. Lanthrop, W. Wisura 1977-7-8 49623 Orange Santa Ana Mountains: along Ortega Highway (74), about 1/4 mile above San Juan Fire Station. 600 Comment
  CAS-BOT-BC145854  Bothriochloa laguroides subsp. torreyana John Thomas Howell 1927-6-5 2437 Orange Santa Ana Canyon. 152 Comment
  RSA60252  Bowlesia incana E. K. Balls 1950-3-7 14446 Orange Rancho Santa Aa Botanic Garden. Comment
  UCR191215  Brachypodium distachyon A. C. Sanders 2008-4-29 35145 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
  RSA587874  Brachypodium distachyon Fred M. Roberts, K. Nowak, G. Madieros, T. Neely 1990-5-11 4763 Orange Laguna Niguel: Niguel Hill, at end of Le Conte Road, 0.6 kilometer SW summit of Niguel Hill., UTM Z11 37 07 6000m N, 4 31 600m E. 195 Comment
  IRVC1047  Brassica nigra S. Gilbert 1965-4-13 Orange 2472 Elden. Costa Mesa Comment
  RSA792477  Brassica rapa Justin M. Wood 2011-2-28 3268 Orange South Coast: Santa Ana River, marsh just upstream of Pacific Coast Highway. Plants collected throughout the marsh and along the adjacent bike path. 0 Comment
  UCR237842  Brassica rapa Mark A. Elvin 2003-2-2 2271 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR209360  Brassica tournefortii Fred M. Roberts, D. E. Bramlet 2008-4-1 6839 Orange Lomas de Santiago, Loma Ridge, at Calochortus Ridge near East Lomas Ridge Road, 2.6 km northwest of Bee Peak and 3.4 km northeast of Rattlesnake Reservoir Dam, Irvine Ranch Conservancy 375 Comment
  UCR46574  Brickellia californica B. G. Pitzer, D. C. Hawks 1986-10-21 0349 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
  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
  RSA0065211  Brodiaea filifolia R. E. Riefner Jr. 2014-5-13 14 -119 Orange City of San Clemente, Rancho San Clemente Trail, east c. 0.15 mi. from Ave. Salvador and south c. 0.1 mi. off Utility Access Rd. 239 Comment
  RSA581665  Brodiaea jolonensis Tony Bomkamp 1995-06 s.n. Orange Rancho Mission Viejo, ridge west side of Canada Gobernadora, west of Casper Regional Park. 140 Comment
  POM50858  Bromus carinatus Le Roy Abrams 1901-06 1844 Orange Mt. Santiago. Comment
  RSA5928  Bromus carinatus C. B. Wolf 1932-7-2 3824 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 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
  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
  RSA0073653  Bromus diandrus Fred M. Roberts 2010-3-12 7182 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
  UCR102005  Bromus diandrus B. G. Pitzer 1997-3-25 3039 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
  RSA0035210  Bromus diandrus Sandy Gray 1981-04 2 Orange Hwy. 142, Carbon Canyon Rd. 3 miles west of Cavida, Chino. Comment
  IRVC27728  Bromus hordeaceus Mark A. Elvin 2004-5-2 3408 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  JEPS71162  Bromus hordeaceus L. M. Booth 1932-5-12 1023 Orange Newport Bay Comment
  RSA0015960  Bromus hordeaceus Fred M. Roberts 2012-4-24 7533 Orange San Joaquin Hills: Buck Gully, above main trail, 2 km W Signal Peak and about 0.4 km S San Joaquin Hills Road. 155 Comment
  RSA697686  Bromus hordeaceus Aileen Adams 1932-4-29 s.n. Orange Orange Co. Park. Comment
  RSA732235  Bromus hordeaceus A. C. Sanders, Fred M. Roberts 2008-4-22 35041 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  UCD58824  Bromus hordeaceus B. Pitzer 1996-4-30 2760 Orange Upper Newport Bay: Calif. Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 6 Comment
  UCR191441  Bromus hordeaceus A. C. Sanders, Fred M. Roberts 2008-4-8 34723 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA696328  Bromus hordeaceus Keith E. Hoffmaster 1928-4-25 s.n. Orange Santa Ana Comment
  RSA685934  Bromus hordeaceus subsp. hordeaceus Fred M. Roberts, David E. Bramlet 2003-3-27 5618 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Chistianitos Cyn., 0.69km N Sycamore Gate, 0.96km W Chistianitos Rd. 122 Comment
  UC971750  Bromus madritensis subsp. rubens L. M. Booth 1932-5-12 1043 Orange Newport Bay Comment
  POM363950  Bromus rubens E. A. McGregor 1966-5-15 s.n. Orange Ortega Highway, between Lake Elsinore and San Juan Capistrano. Comment
  RSA696330  Bromus rubens Keith E. Hoffmaster 1928-4-25 s.n. Orange Santa Ana Comment
  SEINET11675600  Bromus rubens J. F. Bright, Wyman, C. 1933-1 8209 Orange near LaGuna Beach Comment
  UCSB47951  Bromus tectorum Roberts, Dar 1980-5-3 Orange 1.8 km W Trabuco Peak on Main Divide Truck Trail;, and Trail Trail 1256 Comment
  RSA0065566  Buddleja asiatica Doug Bell 1949-1-29 s.n. Orange Garden Grove. 182 Comment
  RSA741472  Buddleja davidii R. E. Riefner Jr. 2008-5-22 8 -116 Orange Near City of Orange, Santiago Creek, vicinity of Jackson Ranch Rd. at Santiago Creek Rd., Irvine Ranch Reserve, Management Area 15. Comment
  CDA5338  Bupleurum lancifolium Mrs. L. Giddings 1955-6-23 Orange 345 Hawthorne Road, Laguna Beach. 0 Comment
  UC1713783  Cakile edentula D. L. Crawford Jul 1928 Orange Abalone Point; Laguna Beach Region, Abalone Point Comment
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Dec 7 2009
  CSUSB527  Cakile maritima Cesareo Perez 1971-5-12 S. N. Orange Huntington State Beach, Pacific Coast Highway at Brookhurst Comment
  RSA648659  Calamagrostis koelerioides R. E. Riefner 2000-6-22 20 -572 Orange NCCP North Ranch Policy Plan Area, NE property; along National Forest boundary, at powerline. 756 Comment
  CAS-BOT-BC354307  Calandrinia breweri R. E. Riefner, Jr. 2008-3-5 08 -31 Orange Irvine Ranch Reserve, North Irvine Ranch, S of Windy Ridge Rd., ca 0.5 mi from West Fork of upper Fremont Canyon 508 Comment
  RSA734964  Calandrinia breweri A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35314 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  UCR203899  Calandrinia breweri R. E. Riefner Jr. 2008-4-15 08- 72 Orange Irvine Ranch Reserve, north Irvine Ranch, western middle Fremont Canyon area, Coalmine SCE Road 353 Comment
  UCR191231  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-4-22 35043 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
  CAS-BOT-BC438321  Calandrinia ciliata Ira L. Wiggins 1966-3-5 20513 Orange About 1/2 mi. W. of El Toro Post Office, along Highway S-18. Comment
  CDA5109  Callistemon viminalis R. E. Riefner Jr. 2006-10-19 06 -559 Orange City of Newport Beach, Irvine Coast Trail at San Diego Creek, near SR-73 crossing, south of Jamboree Road. Comment
  RSA708813  Callitriche marginata Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6162 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  RSA582819  Calochortus catalinae Mark Elvin, Adrian Wolf 1995-6-15 56 Orange Crystal Cove State Park, back country: Moro Canyon. 61 Comment
  RSA732080  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-3-25 34549 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA735172  Calochortus catalinae A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35289 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA751326  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-5-6 35260 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
  RSA753418  Calochortus catalinae D. E. Bramlet 2008-3-31 4136 Orange 223m E of Upper Hicks Haul Rd, Trib. to Limestone Cyn, 1km S of Santiago Cyn Rd. 328 Comment
  RSA769608  Calochortus catalinae E. W. Lathrop 1966-5-23 6098 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  UCR262007  Calochortus catalinae Dick Newell, Don Millar 2015-3-31 399 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Limestone Canyon Rd., 0.3 mi. SW of junction of Santiago Cyn. Rd. and Silverado Cyn. Rd. 311 Comment
  RSA0108729  Calochortus catalinae J. T. Howell 1928-3-17 863 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA679224  Calochortus invenustus Fred M. Roberts 2003-6-25 5946 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA678501  Calochortus splendens Fred M. Roberts, Robt. Allen, Carol A. Roberts 2003-5-11 5864 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive. 73 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
  UCR150909  Calochortus splendens Valerie Soza, LeRoy Gross 1999-6-10 525 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
  RSA588976  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-23 2392 Orange San Joaquin Hills. On ridgeline between Camarillo and Shady Canyons. The site is located 1.5 km west of Laguna Cyn. and 183 m SE of the Shady-Camarillo Cyn. Road Junction. 244 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
  RSA753420  Calochortus weedii var. intermedius D. E. Bramlet 2008-5-16 4274 Orange Agua Chinon Wash. Site is 3m N of the access road and 1.83km NE of Hwy 241 269 Comment
  RSA369019  Calochortus weedii var. weedii M. B. Dunkle 1934-6-18 3979 Orange San Juan Canyon; Southern Coastal 305 Comment
  POM50902  Calycadenia tenella Helen D. Geis 1902-1 535 Orange Santiago Canyon. Comment
  POM6379  Calycadenia tenella Philip A. Munz 1919-5-3 2631 Orange Santa Ana River Canyon. 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
  RSA761935  Calycadenia tenella Robt Allen 2005-4-30 12496 Orange Caspers Wilderness Park, East Ridge Trail. 175 Comment
  CSUSB679  Calystegia macrostegia Cesareo Perez 1971-5-4 Orange South Mesa Drive and Lemon Street in Villa Park Comment
  CHSC13500  Calystegia macrostegia H. E. Hemasth 1974-4-11 1 Orange Side of road, ca 0.7 mi NE of the Mission San Juan Capistrano on Hwy 74. 36 Comment
  RSA562765  Calystegia macrostegia subsp. arida Steve Boyd 1992-5-19 7419 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon. 366 Comment
  UCR281536  Calystegia macrostegia subsp. cyclostegia Mitch Provance, Jeremiah George 2017-3-20 317- 124 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
  LA50068  Calystegia macrostegia subsp. intermedia C. B. Wolf; 1931-3-6 1865 Orange 2 mi. from Orange County Park on the road to Anaheim 152 Comment
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Feb 5 2015
  RSA558  Calystegia macrostegia subsp. intermedia J. T. Howell 1927-6-9 62 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  IRVC994  Calystegia soldanella E. Anderson 1965-4-25 Orange Huntington Beach State Park Comment
  RSA113268  Calystegia soldanella E. K. Balls 1955-4-4 20420 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101. 3 Comment
  RSA0013578  Camissonia D. E. Bramlet 2008-3-26 4120 Orange Bee Canyon. Bowerman landfill site. 202m S of the Bee Cyn. Access Road, 151m west of landfill entrance. Comment
  RSA49672  Camissonia bistorta L. R. Abrams 1901-6-15 1793 Orange Santiago Peak trail. Comment
  RSA678499  Camissonia bistorta Fred M. Roberts, Robt. Allen, Carol A. Roberts 2003-5-11 5843 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  RSA732249  Camissonia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35002 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
  UCR12582  Camissonia cheiranthifolia subsp. cheiranthifolia J. S. Davis 1972-5-6 720506- 16 Orange South Coast, Newport Beach, 100 yards from the corner of San Joaquin Hills Road and Back Bay Road. 0 Comment
  CSUSB189  Camissonia cheiranthifolia subsp. suffruticosa Nancy J. Moriarty 1973-5-20 730520 3 Orange Huntington Beach; 0.5 mile north of Brookhurst Street on the west side of Pacific Coast Highway. Comment
  HSC94212  Camissonia cheiranthifolia subsp. suffruticosa D. Atwood 1993-3-28 17712 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game 0 Comment
  RSA33598  Camissonia cheiranthifolia subsp. suffruticosa N. C. Cooper 1944-6-3 1326 Orange Balboa Beach, On beach at sea level. 0 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
  RSA732072  Camissonia hirtella A. C. Sanders, Fred M. Roberts 2008-3-25 34558 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  SEINET7073417  Camissonia ignota A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  RSA542490  Camissonia micrantha Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3880 Orange Santa Ana Mountains: Hot Springs Canyon, 0.5 km by road north Hwy 74, 0.9 km ESE Juan Rancho Survey Marker. 223 Comment
  UCR193415  Camissonia micrantha A. C. Sanders, Fred M. Roberts 2008-6-17 35522 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  RSA794325  Camissonia robusta Justin M. Wood 2010-3-31 1442 Orange [Santa Ana Canyon:] Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corrridor, west of Green River Golf Course on bluff south of the river. 122 Comment
  UC635390  Camissoniopsis bistorta H. L. Mason 1926-4-25 2928 Orange 5 mi s Laguna Comment
  UCSB48095  Camissoniopsis bistorta Roberts, Fred 1982-4-18 Orange Santa Ana Mtns: Hot Springs Canyon, 1.8 km SW Falcon Group Camp; 1.9km S Los Pinos Peak 928 Comment
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Dec 2 2014
  UCSB52877  Camissoniopsis bistorta Roberts, Fred 1983-3-16 Orange Laguna Beach, Sycamore Hills, central ridge, 1.4km NNE jct. El Toro and Laguna Canyon Rds, 5.4km ESE Signal Peak, 177 Comment
  CAS-BOT-BC160452  Camissoniopsis cheiranthifolia subsp. suffruticosa C. W. Tilforth 1975-9-3 1039 Orange At north-east shoreline of Upper Bay, Newport Beach Comment
  SDSU8589  Camissoniopsis cheiranthifolia subsp. suffruticosa R. M Beauchamp 1968-2-17 768 Orange Beside rod in NW side of Dana Point. Comment
  UC537277  Camissoniopsis cheiranthifolia subsp. suffruticosa Lawrence M. Booth 1932-5-25 1114 Orange Balboa Island Newport Bay Comment
  UCSB48117  Camissoniopsis cheiranthifolia subsp. suffruticosa Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point Headlands: north of Dana Strand Road, 0.5km W Dana Point Harbor; 0.8 km SSW Richard Henry Dana School 80 Comment
  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
  UCR191439  Capsella bursa-pastoris A. C. Sanders, Fred M. Roberts 2008-4-8 34721 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR241061  Cardamine californica Dick Newell, Don Millar 2013-2-5 313 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon at mouth, 1/2 mi. NE of Irvine Dam spillway 213 Comment
  POM6389  Cardamine californica var. integrifolia P. A. Munz, L. T. Street, Williams 1919-5-3 2637 Orange Santa Ana River Canyon. Comment
  RSA162706  Cardamine californica var. integrifolia J. D. Olmsted 1959-4-23 469 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  POM202106  Cardionema ramosissimum L. M. Booth 1932-5-24 1093 Orange West Side of Newport Lagoon. Comment
  UCR5159  Cardionema ramosissimum Barbara T. Gittins, O. F. Clarke 1966-3-19 902 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  CAS-BOT-BC118506  Carex praegracilis Helen D. Geis 1902-4-1 567 Orange Ditch banks near Santa Ana Comment
  CAS-BOT-BC118486  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Peat Lands Comment
  CAS-BOT-BC118494  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana, Peat lands Comment
  RSA581445  Carex spissa Fred M. Roberts, Gordon Marsh 1989-5-12 4365 Orange Santa Ana Mountains: Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.0 kilometers WSW Laurel Springs. 436 Comment
  UCR174019  Carex spissa A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33049 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
  SEINET10447212  Carpobrotus aequilaterus Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7130 Orange In vicinity of Laguna Beach. 152 Comment
  SEINET10874602  Carpobrotus aequilaterus David B. Dunn 1971-8-13 Dunn 18123 Orange Cultivated plants vicinity of Laguna Beach. Comment
  RSA234504  Carpobrotus edulis James Henrickson 1970-7-24 4984 Orange 1.5 miles NW of Huntington Beach along NW facing base of Huntington Beach Mesa bordering Bolsa Chica Salt Marsh. 3 Comment
  UCR11220  Carthamus baeticus D. O. Clark 1969-7-14 s.n. Orange 2 mi NE of Brea Comment
  RSA25956  Carthamus baeticus E. L. Paddock 1941-7-21 115 Orange Ridge Road along S rim of Tonner Canyon, approx. 1 mi. NE of Brea on Union Oil Lease. Comment
  RSA683065  Castilleja affinis Fred M. Roberts 2003-3-19 5608 Orange Donna O'Neill Land Conservancy: Ridges west of Cristianitos Cyn., 1,750m NNW Sycamore gate and 315m W Cristianitos Rd. (Canada Gobernadora) 192 Comment
  UCR150610  Castilleja affinis Scott D. White 1997-5-6 5044 Orange Peninsular Ranges; Santa Ana Mountains, Lomas de Santiago. Santiago Canyon area: Ridgetop road N and west of Bolero Lookout 488 Comment
  UCR191326  Castilleja affinis A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34609 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
  UC1032492  Castilleja affinis subsp. affinis A. Lewis Feb 1934 264 Orange Santa Ana Canyon; Corona Quad. 152 Comment
  HSC20886  Castilleja exserta subsp. exserta J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  UCR209355  Castilleja exserta subsp. exserta Fred M. Roberts 2008-4-8 6848 Orange Lomas de Santiago, Loma Ridge, Upper Dripping Springs Cnyn, 1.0 km northeast of Bee Peak, Irvine Ranch Conservancy 458 Comment
  RSA19418  Castilleja foliolosa I. W. Clokey 1932-3-1 5342 Orange Laguna Beach. Comment
  RSA448792  Castilleja minor subsp. spiralis M. B. Dunkle 1934-6-18 3989 Orange San Juan Canyon; Southern Coastal 305 Comment
  RSA749288  Caulanthus heterophyllus Fred M. Roberts 1999-4-2 5166 Orange Lomas de Santiago: Loma Ridge, Limestone Cyn. along Dripping Spgs Rd., at mouth of Dripping Spgs. Cyn., 1.0 km W Silverado Sch. and 4.3 km NNW Bolero Lookout. 311 Comment
  UCR190976  Caulanthus heterophyllus A. C. Sanders, Fred M. Roberts 2008-4-22 35001 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
  RSA0119683  Caulanthus lasiophyllus Fred M. Roberts 2015-3-10 7922 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
  RSA171009  Ceanothus crassifolius Robert F. Thorne 1963-7-26 32829 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA5284  Ceanothus crassifolius Carl B. Wolf 1932-12-19 4435 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA733939  Ceanothus crassifolius R. H. McArthur 1934-2-10 s.n. Orange Santiago Canyon above Modjeska Comment
  SD181362  Ceanothus crassifolius Paul Shirokawa 1998-5-15 37 Orange Cleveland National forset - Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Rd 960 Comment
  SEINET13945801 Image available Ceanothus crassifolius S. Lambert 1981-1 1957 Orange Cleveland Nat'l Forest, 19.7 mi E of hwy. 5 by hwy 74 at San Juan Trail, 2100 ft elev. 640 Comment
  RSA733936  Ceanothus divaricatus Keith E. Hoffmaster 1936-5-3 715 Orange Santa Ana Mts (Santiago Peak) Comment
  CAS-BOT-BC50807  Ceanothus integerrimus P. C. Everett 1935-6-19 7236 Orange Santa Ana Mts., Trabuco Canyon, 1 mi. below summit of Truck Trail 1005 Comment
  RSA542418  Ceanothus integerrimus Fred M. Roberts, Karlin G. Marsh 1987-5-14 3440 Orange Santa Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail , 1.3 km NE Los Pinos Peak 1231 Comment
  RSA797906  Ceanothus integerrimus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49816 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UC718385  Ceanothus integerrimus P. C. Everett 1935-6-18 7214 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  SD42450  Ceanothus integerrimus var. macrothyrsus Carl B. Wolf 1941-8-15 11153 Orange Santa Ana Mts. W. slope Santiago Truck Trail, 1.6 mi. below Main Divide Motorway 1219 Comment
  RSA3025  Ceanothus leucodermis E. R. Johnson 1931-12-31 2641 Orange Racho Santa Ana, river bottom south of Ranch houses, ear the boudary benre. Comment
  RSA21484  Ceanothus megacarpus E. R. Johnson 1936-3-16 8312 Orange Rancho Santa Ana, Santa Ana Canyon. So. of Ranch Buildings 122 Comment
  RSA735268  Ceanothus megacarpus Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  RSA0058061  Ceanothus megacarpus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49675 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  UCR159779  Ceanothus megacarpus subsp. megacarpus Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh Comment
  RSA542420  Ceanothus megacarpus var. megacarpus Fred M. Roberts, Karlin G. Marsh, Gordon Marsh 1988-4-26 3953 Orange San Joaquin Hills: hill between Pelican and Signal Hills, 0.8km ENE Pelican Hill. 207 Comment
  RSA16340  Ceanothus oliganthus Percy C. Everett 1935-6-18 7194 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  RSA0054960  Ceanothus oliganthus Keith E. Hoffmaster 1936-4-5 707 Orange Black Star can., Santa Ana Mts. Comment
  SD247718  Ceanothus oliganthus R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49699 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  SEINET10852447  Ceanothus oliganthus var. sorediatus Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 7 Orange Cleveland National Forest, 2 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
  UCR158810  Ceanothus papillosus subsp. roweanus A. C. Sanders, Mark A. Elvin 2005-9-2 31610 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
  LA42097  Ceanothus spinosus Carl B. Wolf; 1936-7-8 8098 Orange Santa Ana Mountains, along Ortega Hwy, San Juan Canyon, 0.2 mi. W of Riverside County line 274 Comment
  LA93871  Ceanothus spinosus D. S. Verity; Fred Lang 1974-2-20 sn Orange hills behind South Laguna Comment
  OBI10341  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
  RSA25589  Ceanothus spinosus Carl B. Wolf 1941-6-27 10896 Orange San Juan Canyon, Ortega hiway, 1.5 mi. W. of Riverside co. line. 274 Comment
  SDSU10426  Ceanothus spinosus D. F. Howe 1947-4-4 1545 Orange Santa Ana Mtns. 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
  RSA77337  Ceanothus tomentosus F. W. Peirson 1922-5-19 3050 Orange small canyon heading eastward from the Santa Ana River Canyon 122 Comment
  UCR31896  Cenchrus ciliaris Jan West 1983-10-8 s.n. Orange Orange, Fwy right of way along the Newport Fwy (#55) at its intersection with Chapman Avenue Comment
  IRVC576  Centaurea melitensis J. B. Anderson 1966-4-22 611 Orange Upper Los Trancos Canyon. San Joaquin Hills Comment
  SEINET3082600 Image available Centaurea melitensis R. P. Sunderman 1968-5-11 Orange W. of U. S. 101, immediately S. of Corona del Mar. Comment
  UC536893  Centaurea melitensis Lawrence M. Booth 1932-5-26 1117 Orange Newport Bay Comment
  UCR191220  Centaurea melitensis A. C. Sanders 2008-4-29 35140 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
  RSA184117  Centaurea melitensis I. L. Wiggins 1966-5-25 20663 Orange Along Nutwood Lane S margin of campus of CSCF, Fullerton Comment
  SD245254  Centaurea melitensis R. F. Thorne, W. E. Lathrop, W. Wisura 1977-7-8 49610 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station. Comment
  RSA716660  Centaurea solstitialis Fred M. Roberts, Michelle Balk, Robert Allen, Megan Enright 2004-7-18 6077 Orange Santa Ana Mtns.: San Jun Cyn., SR 74, north side of road, c.a. 4.6km E San Juan Guard Sttion by road. 393 Comment
  CDA7332  Centaurea solstitialis T. C. Fuller 1962-6-7 8869 Orange North end of Fullerton Golf Course. Fullerton 0 Comment
  RSA699754  Centaurium venustum Fred M. Roberts, David Bramlet 2003-6-6 5886 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.7km SW int. Cristianitos and TRW Rds. and 0.23km W of SDG&E substation. 94 Comment
  RSA761931  Centaurium venustum Suzanne Espino 2005-4-26 2 Orange Santa Ana Mountains, Caspers Wilderness Park, East Ridge Trial. Near water tank at E. 168 Comment
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Jun 6 2020
  UC935684  Centromadia parryi subsp. australis David D. Keck 1933-9-29 2537 Orange Seal Beach Seal Beach (alkaline fields adjoining tidelands) Comment
  UCR256927  Centromadia parryi subsp. australis Jeremiah George 2011-7-8 s.n. Orange Bolsa Chica Mesa, south central edge 8 Comment
  CAS-BOT-BC142123  Cercocarpus betuloides James R. Shevock 1978-4-26 5893 Orange On the divide road, FS 3S04, between Beeks Place and Sierra Peak - Santa Ana Mountains, Cleveland National Forest 1097 Comment
  RSA172271  Cercocarpus betuloides Robert F. Thorne 1963-7-26 32844 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Cleveland National Forest 854 Comment
  RSA698630  Cercocarpus betuloides Dorothy Sammis s.n. Orange Silverado Canyon Comment
  UCR192118  Cercocarpus betuloides A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35304 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  JEPS45547  Cercocarpus betuloides var. betuloides John Thomas Howell 1927-6-26 2612 Orange Santa Ana Mountains, Claymine Canyon Claymine Canyon; Santa Ana Mountains, Claymine Canyon 243 Comment
  RSA810  Chaenactis artemisiifolia J. T. Howell 1927-6-5 36 Orange just to E of Rancho Santa Ana 152 Comment
  UC34172  Chaenactis artemisiifolia W. C. Blasdale 1891-6-1 Orange Santiago Canon Comment
  IRVC588  Chaenactis fremontii B. Mawdsley 1965-4-4 Orange Corona del Mar. Newport Beach Comment
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Dec 20 2006
  UCR138390  Chaenactis glabriuscula Scott D. White, Brian Leatherman 1997-6-12 5344 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
  POM351782  Chaenactis glabriuscula var. glabriuscula F. R. Fosberg 1931-6-21 5099 Orange Silverado Canyon. Santa Anita Mts. Comment
  UC149240  Chaenactis glabriuscula var. glabriuscula LeRoy Abrams 1903-4-13 3254 Orange Buena Park Comment
  CAS-BOT-BC283933  Chaenactis glabriuscula var. glabriuscula F. W. Peirson 1924-5-31 4671 Orange 5 miles S of Laguna on sea bluff Comment
  IRVC598  Chaenactis glabriuscula var. glabriuscula M. Savage 1965-3-21 Orange Irvine Terrace. Newport Beach Comment
  POM294107  Chaenactis glabriuscula var. megacephala Lyman Benson 1946-4-27 12053 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  CDA21594  Chamaesyce albomarginata Mark A. Elvin, B. S. Herhus 2006-11-4 5255 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  HSC7984  Chamaesyce albomarginata C. L. Hitchcock 1966-3-15 24140 Orange Stearns Lease, 1.5 mi. E of Brea. 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
  CDA28633  Chamaesyce maculata Mark A. Elvin, D. G. Kelch 2006-12-9 5301 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA702691  Chamaesyce polycarpa Scott D. White, Michael Honer 2004-5-17 10394 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
  RSA3130  Chamaesyce polycarpa var. polycarpa C. B. Wolf 1932-2-15 s.n. Orange Rancho Santa Ana Botanic Garden. 183 Comment
  RSA542539  Chamaesyce polycarpa var. polycarpa Fred M. Roberts, Dar A. Roberts 1989-3-22 4221 Orange Aliso-Wood Canyons Regional Park: Wood Canyon, 3.6 km S Moulton Peak. 43 Comment
  RSA70402  Chamaesyce serpillifolia F. W. Peirson 1924-10-19 5236 Orange Wintersberg Comment
  RSA0013862  Chasmanthe floribunda Fred M. Roberts, Steve Boyd, Robt. Allen 2010-2-12 7174 Orange South Coast: San Joaquin Hills: Niguel Hill, Laguna Niguel, Sea View Park, 0.2 km WNW summit of Niguel Hill. 251 Comment
  RSA797474  Cheilanthes newberryi R. F. Thorne 1977-11-21 49987 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  RSA750067  Chenopodium album A. C. Sanders, Fred M. Roberts 2008-9-18 36065 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  RSA184151  Chenopodium album I. L. Wiggins 1965-10-25 20300 Orange Curbway on Dorothy Lane near intersection with Lincoln Avenue, Fullerton. Comment
  IRVC21772  Chenopodium ambrosioides Fred M. Roberts 1984-11-27 1440 Orange Novia St. bridge over San Juan Creek, 0.6km S Bench Mark 133, San Juan Capistrano 31 Comment
  RSA750005  Chenopodium ambrosioides A. C. Sanders, Fred M. Roberts 2008-9-18 36062 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  POM122883  Chenopodium ambrosioides Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM201674  Chenopodium ambrosioides L. M. Booth 830 Orange Santa Ana Canyon. Comment
  RSA265  Chenopodium ambrosioides var. ambrosioides J. T. Howell 1927-7-18 430 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR233741  Chenopodium berlandieri Fred M. Roberts 2008-6-26 7061 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge along West Loma Ridge Road, c. 1 km north of Haul Road, 2.5 km NNW of Bee Peak, Irvine Ranch Land Conservancy 382 Comment
  RSA625806  Chenopodium californicum Scott D. White, Noel Davis 1998-5-21 6546 Orange Santa Ana Mountains, Mission Viejo Area: Aliso Creek watershed, east of El Toro Road just N of junction w/ Valley Vista Way., 33 deg 40.5 N, 117 deg 37 W. 305 Comment
  UCR237847  Chenopodium glaucum Mark A. Elvin 2003-2-2 2276 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA234524  Chenopodium macrospermum var. farinosum James Henrickson 1970-9-5 5346 Orange 3 miles NW of Huntinton Beach, at southern margin of Bolsa Chica Mesa. 0 Comment
  RSA48861  Chenopodium macrospermum var. farinosum J. C. Roos 1949-10-1 4681 Orange Doheney Beach. [Now Capistrano Beach] Comment
  RSA588847  Chenopodium macrospermum var. halophilum Fred M. Roberts Jr. 1989-10-26 4449 Orange Salt Creek Reservoir Park: San Juan Canyon drainage just west of ball park (old reservoir site), 1.7 km SW Salada Survey Mark and 0.4 km W end of San Juan Road. 82 Comment
  IRVC22761  Chenopodium multifidum Karlin G. Marsh 1984-9-28 Orange Balboa Peninsula, collected near Balboa Pier in Balboa Pk., Newport Beach 0 Comment
  RSA696277  Chenopodium multifidum Keith E. Hoffmaster 1932-8-26 s.n. Orange Santa Ana. Comment
  CHSC35781  Chenopodium murale James Henrickson 1972-10-21 8057 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave., just N. of Santa Ana River. 60 Comment
  IRVC27496  Chenopodium murale Mark A. Elvin 2004-5-2 3403 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  IRVC394  Chenopodium murale D. DeVault 1965-3-4 Orange Newport Beach 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
  RSA650315  Chenopodium murale Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange 60 Comment
  UCSB18582  Chenopodium murale Reed, Robert 1964-3-26 Orange 150 feet N of the corner of Orangewood and Euclid Avenues, Anaheim 60 Comment
  RSA86738  Chloris gayana F. W. Peirson 1926-9-26 7087 Orange Wintersburg. Comment
  UCR233744  Chlorogalum pomeridianum Fred M. Roberts 2008-6-12 7045 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge, along 'Calochortus Ridge' near West Loma Ridge Road north of Haul Road, 2.6 km NW of Bee Peak, Irvine Ranch Land Conservancy 417 Comment
  CAS-BOT-BC497716  Chlorogalum pomeridianum Le Roy Abrams 1901-6-1 1782 Orange Laguna Comment
  RSA788905  Chlorogalum pomeridianum var. pomeridianum Fred M. Roberts 2008-6-12 7045 Orange Lomas de Santiago: Loma Ridge Road north of Haul Rd., 2.6 km NW Bee Peak, Irvine Ranch Land Conservancy. 417 Comment
  RSA739343  Chorizanthe procumbens Keith E. Hoffmaster 1935-4-19 298 Orange Santiago can. near Silverado ca., Santa Ana Mountains. Comment
  CAS-BOT-BC255249  Chorizanthe staticoides Helen D. Geis 1902-1-1 542 Orange Hills near Santa Ana Comment
  CAS-BOT-BC255256  Chorizanthe staticoides John Thomas Howell 1927-6-8 2455 Orange Southern Puente Hills in the Santa Ana Canyon 182 Comment
  JEPS57639  Chorizanthe staticoides Lawrence M. Booth 1932-5-12 1031 Orange Newport Bay. Comment
  UCR241918  Chorizanthe staticoides subsp. chrysacantha Fred M. Roberts 2012-5-10 7566 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
  IRVC19481  Chrysothamnus nauseosus Karlin G. Marsh 1982-7-27 Orange Coal Canyon, west slope at mouth of canyon; in grassland. Santa Ana Mountains Comment
  RSA818  Cichorium intybus J. T. Howell 1927-10-29 786 Orange Bryant Ranch near Long Beach. 15 Comment
  SD143571  Cirsium occidentale var. californicum R. D. Goeden, D. W. Ricker 1965-6-21 Orange Dana Point 75 Comment
  RSA0059657  Cirsium occidentale var. occidentale Scott D. White 2003-3-21 8796 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA773518  Cirsium occidentale var. occidentale Fred M. Roberts 1999-5-3 5208 Orange Lomas de Santiago: Loma Ridge, Central Limestone Canyon, west slope, 2.3 km NW Bolero Lookout and 0.5 km NE Bolero Spring 446 Comment
  RSA788908  Cirsium occidentale var. occidentale Fred M. Roberts 2008-6-26 7060 Orange Lomas de Santiago: Loma Ridge along West Loma Ridge Road, c.a. 1 km N Haul Rd., 2.5 km NNW Bee Peak, Irvine Ranch Land Conservancy. 382 Comment
  SD143566  Cirsium vulgare R. D. Goeden, D. W. Ricker 1965-7-7 Orange Puente Hills: Brea Blvd. at Tonner Canyon Road, confluence of Brea and Tonner Canyons, northeast edge of Brea. 146 Comment
  SDSU3806  Cirsium vulgare Curtis B. Kendall 1994-5-18 18 V94F Orange Intersection of Bell Canyon Road and North Prusker Road in he National Audubon Starr Ranch Sanctuary. 268 Comment
  UCR109769  Cirsium vulgare R. D. Goeden, Don W. Ricker 1965-7-7 s.n. Orange Puente Hills, Brea Blvd. at Tonner Cyn. Rd., confluence of Brea and Tonner Canyons, NE edge of Brea 146 Comment
  POM153245  Clarkia bottae C. L. Hitchcock 1928-5-5 49 Orange Mouth of Santa Ana Canyon. 150 Comment
  UCR228790  Clarkia bottae Dick Newell, Don Millar 2011-5-24 159 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Haul Road 286 Comment
  UCSB52914  Clarkia bottae Roberts, Fred; Marsh, K. 1983-5-13 Orange San Joaquin Hills, Laguna Canyon along Laguna Canyon Road; 1.7km N Thurston School; 6.4km SE Signal Peak 50 Comment
  SD181431  Clarkia deflexa Valerie Soza, LeRoy Gross 1999-6-7 475 Orange Santa Ana Mountains: West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UCR234145  Clarkia dudleyana Dick Newell, Judy Booth 2012-5-6 250 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.2 miles NE of Maple Springs gate, Cleveland National Forest 695 Comment
  RSA458857  Clarkia purpurea subsp. viminea M. B. Dunkle 1938-6-23 5381 Orange San Juan Capistrano. Comment
  RSA708234  Clarkia rhomboidea Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6236 Orange Modjeska Peak, west slope along summit road, 0.15km by air W summit. 1613 Comment
  RSA16489  Clematis lasiantha Percy C. Everett 1935-6-18 7218 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  UCSB29146  Clematis lasiantha Copp, Joseph 1962-3-9 Orange San Juan Can; Calif. 74; 8.8 rd. mi. northeast of US 101 Comment
  POM188  Clematis ligusticifolia E. A. Zumbro 1902-1 s.n. Orange [Unspecified] Comment
  RSA5332  Clematis ligusticifolia B. D. Stark 1933-6-3 s.n. Orange Rancho Santa Ana near pear orchard 122 Comment
  RSA542411  Clematis ligusticifolia Fred M. Roberts, Karen Calloway 1988-1-27 3774 Orange San Juan Canyon, Hwy 74, 1.1km SW Lower San Juan Picnic Ground. 403 Comment
  POM201932  Cleome isomeris L. M. Booth 1932-5-12 1045 Orange Newport Bay. Comment
  CAS-BOT-BC180992  Cneoridium dumosum Cecil Hart 1928-5-27 s.n. Orange Laguna Beach Comment
  POM49164  Cneoridium dumosum I. M. Johnston 1924-7-10 s.n. Orange 1/2 mi. S. of Aliso Canyon. Comment
  RSA449087  Cneoridium dumosum Thekla Mohr 1920-6-1 s.n. Orange Laguna. Comment
  RSA542395  Cneoridium dumosum Fred M. Roberts Jr. 1987-3-24 3271 Orange Laguna Beach: Goff Ridge, south of Nyes Place Rd., 0.9km NNE Goff Island. 169 Comment
  RSA77080  Cneoridium dumosum F. W. Peirson 1919-11-18 2031 Orange South of Arch Beach, Comment
  UCD116910  Cneoridium dumosum Raymond A. Evans 1951-3-23 s.n. Orange South of Laguna. 60 Comment
  RSA34587  Collinsia heterophylla N. C. Cooper 1944-6-4 1361 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA408307  Collinsia heterophylla Anstruther Davidson 1920-6-1 3371 Orange Languna Beach Comment
  RSA564111  Collinsia heterophylla var. austromontana B. Pitzer, S. Hemstreet 1992-5-27 1954 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground. 762 Comment
  RSA184179  Conium maculatum I. L. Wiggins 1966-5-11 20661 Orange Carbon Canyon about 1 mile above its mouth. Comment
  CDA32186  Convolvulus arvensis T. McCrainie, Mark A. Elvin 2006-9-23 8 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  UCR107845  Convolvulus arvensis Scott D. White 1998-3-24 6235 Orange Irvine. Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Av. and new freeway (Bonita Cyn) 37 Comment
  UCR109770  Convolvulus arvensis R. D. Goeden, Don W. Ricker 1965-6-15 s.n. Orange Santiago Blvd., Villa Park 91 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
  UCSB52934  Convolvulus arvensis Roberts, Jr., Fred 1984-8-2 Orange Irvine; along Adobe Circle Road, UC Irvine, 0.9 km. ENE campus center; 2.3 km. W French Hill 30 Comment
  RSA38434  Convolvulus simulans E. L. Paddock 1943-5-3 s.n. Orange Graham & Loftus Oil Corp., 1 mile E of Brea Comment
  RSA557  Convolvulus simulans J. T. Howell 1928-2-26 s.n. Orange Bee Canyon, Rancho Santa Ana. 305 Comment
  CAS-BOT-BC285927  Conyza bonariensis Ira L. Wiggins 1965-10-24 20282 Orange Along Skyline Drive near intersection with Raymond Street, Fullerton Comment
  RSA703142  Conyza bonariensis Fred M. Roberts 2003-9-11 6014 Orange Rancho Mission Viejo; Donna O'neill Land Conservancy, Cristianitos Cyn., 0.79 km N of Sycamore Gate, 0.23 km W of Christianitos Road. 126 Comment
  UCR116012  Conyza bonariensis George K. Helmkamp, E. A. Helmkamp 2000-10-18 6229 Orange Newport Bay, South side of the back bay. 6 Comment
  UCR44907  Conyza bonariensis B. G. Pitzer, L. F. LaPre 1986-10-20 s.n. Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  POM201740  Conyza bonariensis L. M. Booth 1932-6-9 1181 Orange Newport Bay Comment
  RSA831  Conyza bonariensis J. T. Howell 1927-9-24 755 Orange Santa Ana Botany Garden 152 Comment
  POM201847  Conyza canadensis L. M. Booth 1932-12-13 1375 Orange Newport Bay. Comment
  RSA703085  Conyza canadensis Fred M. Roberts, Arthur Davenport 2003-9-11 6009 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary west of Christianitos Canyon, 1.6 km NNW Sycamore Gate and 10 meters W of Christianitos Road 145 Comment
  IRVC29812  Conyza floribunda Laura D. Lyons, Mark A. Elvin 2006-9-23 426 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
  RSA780826  Cordylanthus rigidus subsp. setiger Sandy Leatherman 2011-7-2 2011 -20 Orange Peninsular Ranges; Chino-Puente Hills region; 50 meters west of Carbon Canyon Road and Lions Canyon Road in Carbon Canyon in the City of Brea 274 Comment
  CAS-BOT-BC287841  Coreopsis californica Miss. Helen D. Geis 1904-4-1 732 Orange Silverado Canon, Santa Ana Mts Comment
  CAS-BOT-BC101296  Corethrogyne filaginifolia Carl B. Wolf 1933-8-24 5394 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA743452  Corethrogyne filaginifolia var. virgata Fred M. Roberts 2008-7-10 7072 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
  RSA731648  Cortaderia selloana Fred M. Roberts 2007-10-29 6631 Orange Laguna Beach: Temple Hill, Nyes Place, c.a. 0.2 km S Moulton Meadows Park. 232 Comment
  SEINET3926228  Cortaderia selloana Pamela G. Jones 1967-12-30 93 Orange 4571 Rose Dr., Yorba Linda. (Part 2- goes with Sheet Number 66186); 0 Comment
  CAS-BOT-BC287225  Cotula australis Ira L. Wiggins 1966-3-4 20491 Orange Shoulder of Peralta Ave, near junction of Newport Freeway and Riverside Highway Comment
  CAS-BOT-BC291357  Cotula coronopifolia Carl B. Wolf 1932-3-8 2692 Orange Sunset Beach at soutehrn limits of city 1 Comment
  RSA0054856  Cotula coronopifolia Grace Adams 1938-5-28 s.n. Orange Santiago Creek. Comment
  RSA696049  Cotula coronopifolia Stephen Bruff s.n. Orange Lemon Heights Comment
  UCD130912  Cotula coronopifolia Ronni Stachelek; Bob Anderson 1995-3-23 50 Orange Newport Beach, Upper Newport Bay, Back Bay Drive, ca. 150 m. north of San Joaquin Drive. Comment
  RSA17588  Cotyledon orbiculata C. B. Wolf 1936-7-8 8099 Orange Coast Hwy, Western end of Newport Bay. 9 Comment
  UC1930991  Cotyledon orbiculata R. E. Riefner Jr. 2006-8-25 06 -407 Orange South Coast: Dana Point Harbor, Dana Point Harbor Dr. at Ensenada Pl. Comment
  RSA0096944  Crassula connata Scott D. White 1998-3-24 6234 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
  RSA699758  Crassula connata Fred M. Roberts, D. E. Bramlet 2003-5-15 5867 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Cristianitos Cyn., 1.68km SW Gato Gate and .24km NW of SDG&E substation. 116 Comment
  RSA751982  Crassula connata Fred M. Roberts 2008-3-27 6803 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  RSA542643  Crassula connata var. erectoides Fred M. Roberts, Dar A. Roberts 1989-3-22 4219 Orange Aliso-Wood Canyons Regional Park: Wood Canyon, 3.6 km S Moulton Peak. 43 Comment
  RSA394756  Cressa truxillensis Ella M. Kennedy 1923-5-2 s.n. Orange Laguna Beach Comment
  RSA71016  Cressa truxillensis F. W. Peirson 1924-5-31 4647 Orange Laguna Canyon, near Laguna Beach. 106 Comment
  UC219257  Crocanthemum scoparium var. vulgare Munz and Johnston 1922-5-18 5307 Orange Santa Ana River Canyon, in a side canyon Santa Ana River Canyon 274 Comment
  RSA697576  Croton californicus Kenneth Beard s.n. Orange East of S. A. River on Edinger Road 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
  RSA734902  Croton setiger A. C. Sanders 2008-5-28 35439 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 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
  POM49204  Cryptantha clevelandii var. florosa L. R. Abrams 1901-6-15 1821 Orange Santiago Peak trail. Comment
  UCSB52918  Cryptantha clevelandii var. florosa Roberts, Jr., Fred 1983-3-10 Orange Dana Point Headlands: south of Scenic Dr., 0.3 km. W Dana Point Harbor; 0.8 km. S Richard Henry Dana School 60 Comment
  IRVC255  Cryptantha intermedia C. Hinesly Orange Trabuco Canyon Santa Ana Mountains 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
  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
  RSA699343  Cryptantha intermedia Anonymous s.n. Orange Laguna Comment
  UCR223426  Cryptantha intermedia Dick Newell, Don Millar 2011-2-15 058 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  SD87710  Cryptantha intermedia var. johnstonii F. W. Peirson 1924-5-31 Orange 5 miles south of Laguna Comment
  SDSU18440  Cryptantha leiocarpa Robert Lee Allen 2009-4-14 Orange Newport Beach, Balboa Peninsula, southeast of Balboa Pier, at south end of E Street. UTM 11S 04 16 939mE, 37 18 062mN (WGS84/NAD 83). 2 Comment
  UCR47757  Cryptantha microstachys F. R. Fosberg 1930-6-15 S- 02937 Orange Santa Ana Mtns, Santiago Canyon, near Modjeska's home. Comment
  IRVC19956  Cryptantha microstachys Gordon A. Marsh 1983-4-16 Orange Sycamore Hills, central sector, lower margin, Laguna Beach Comment
  UCSB57540  Cryptantha muricata Roberts, Jr., Fred 1984-2-22 Orange Casper's Regional Park; Rancho Cabrillo Rd., north rim of Verdugo Canyon, 1.5 km. NE Visitor Center; 2.3 km. SW Lucas Survey Mark 235 Comment
  IRVC20159  Cryptantha muricata var. muricata R. L. Allen 1977-4-19 Orange [San Juan Canyon], Ortega Hwy, road side 111, 1.5[mi E] San Juan Guard Station. Santa Ana Mountains Comment
  UCR140973  Cupressus arizonica June Latting 1973-6-30 s.n. Orange Santa Ana Mountains, Beeks Place, south of Oak Flat 854 Comment
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Mar 28 2014
  JEPS19314  Cupressus forbesii John Thomas Howell 1927-6-26 2607 Orange just to west Sierra Peak; Santa Ana Mts. 701 Comment
  RSA14145  Cupressus forbesii R. C. Bacigalupi 1935-6-22 2354 Orange Head of Clay Mine Canyon on drainage of Santa Ana River, northern end of Santa Ana Mountains Comment
  RSA17652  Cupressus forbesii C. B. Wolf 1935-1-2 6279 Orange Slopes of Sierra Peak, west of Claymine Canyon, along road to Peak. 670 Comment
  RSA730999  Cupressus forbesii Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6502 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  UC1134210  Cupressus forbesii A. Lewis 1934-4-1 382 Orange 2 1/2 mi w Sierra Peak; Corona Quadrangle Comment
  UC1445981  Cupressus forbesii J. T. Howell 1927-8-10 2983 a Orange Clay Mine branch of Santa Ana Canyon Sierra Peak Comment
  NY16670  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6279 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA753031  Cuscuta A. C. Sanders, Fred M. Roberts 2008-9-18 36097 Orange Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  UCR186680  Cuscuta T. B. Salvato, Katie Kurtz 2006-10-15 1913 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  UCR197796  Cuscuta A. C. Sanders, Fred M. Roberts 2008-9-18 36097 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  RSA5932  Cuscuta californica C. B. Wolf 1932-7-2 3820 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  UC284233  Cuscuta californica P. A. Munz 1923-7-8 7330 Orange Santa Ana River Comment
  UCR193052  Cuscuta californica A. C. Sanders, Mitch Provance 2008-5-20 35405 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR258625  Cuscuta campestris Fred M. Roberts 2014-7-25 7890 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
  RSA697260  Cuscuta pentagona Keith E. Hoffmaster 1934-7-15 s.n. Orange Near Santa Ana Comment
  JEPS47118  Cuscuta salina L. M. Booth Oct 1933 Orange Newport Comment
  RSA409747  Cuscuta salina F. R. Fosberg 1930-7-10 3186 Orange Anaheim Landing. [Now Seal Beach, Orange County. Los Angeles Co. on label] 1 Comment
  UCR18223  Cuscuta salina Chuck Schneibeck 1974-7-9 s.n. Orange South Coast, Newport Back Bay 8 Comment
  POM48019  Cuscuta salina I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  IRVC29789  Cuscuta subinclusa Mark A. Elvin, Dean Kelch 2006-12-9 5312 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA751790  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-7-3 35688 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
  UCR195020  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-8-7 35992 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
  JEPS59787  Cycloloma atriplicifolium Frank W. Peirson 1924-8-29 5061 Orange at bridge near Santa Ana; Santa Ana River Comment
  RSA0042531  Cynodon dactylon Fred M. Roberts 2013-5-30 7778 Orange Lomas de Santiago: Santiago Creek wash, at Santiago Canyon Road bridge (south side), 0.3km W jct. Silverado and Santiago Canyon Roads. 299 Comment
  UCD60070  Cynodon dactylon Beecher Crampton 1965-10-27 7578 Orange 2 miles east of Irvine, Irvine Blvd. Comment
  RSA0062647  Cynodon dactylon Jack D. Ingwersen 1962-5-30 s.n. Orange Anaheim. Comment
  RSA47  Cynodon dactylon J. T. Howell 1927-7-27 488 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA678728  Cynodon dactylon Fred M. Roberts, Michelle Lee 2001-6-29 5506 Orange Rancho Mission Veijo: Chiquita Ridge, 0.3km WnW Rancgo Macian Survey Marker. PCR Vernal Pool 4., (33 33'11N,117 37' 18 W; T7S R7W, NW 1/4sec 21) 226 Comment
  POM201509  Cyperus eragrostis L. M. Booth 836 Orange Santa Ana Canyon. Comment
  RSA0026258  Cyperus eragrostis Fred M. Roberts 2013-6-12 7792 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
  SD245176  Cyperus eragrostis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49572 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. Comment
  SEINET7581659 Image available Cyperus eragrostis Sue A. Thompson, John E. Rawlins 1988-8-27 5256 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74. 370 Comment
  CAS-BOT-BC114360  Cyperus erythrorhizos Peter H. Raven 1961-9-15 16852 Orange Bed of Santa Ana River at Anaheim St. Crossing. 60 Comment
  POM12447  Cyperus erythrorhizos Phillip A. Munz 1922-9-2 6359 -A Orange Laguna Lakes. 46 Comment
  RSA125600  Cyperus esculentus Peter H. Raven 1957-9-28 11398 Orange 1.1 miles south of Orange County line on US Highway 101. Comment
  UCR258624  Cyperus involucratus Fred M. Roberts 2014-7-25 7885 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
  RSA5914  Cyperus laevigatus Carl B. Wolf 1932-7-2 3813 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  UCR138404  Cyperus niger Scott D. White, Brian Leatherman 1997-6-12 5320 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
  UC2047828  Cyperus niger var. capitatus Robert F. Thorne 1977-11-21 49999 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. 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
  UCR166792  Cyperus odoratus R. E. Riefner Jr. 2005-7-9 05- 551 Orange South Coast, city of Huntington Beach, Huntington Central Park, Goldenwest Street near Slater Avenue 1.5 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
  RSA700549  Dalea mollissima Mary Edmunds 1932-3-29 s.n. Orange Oasis 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
  IRVC29795  Datura stramonium Mark A. Elvin, Dean Kelch 2006-12-9 5321 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA20216  Datura stramonium E. R. Johnson 1938-5-14 9409 Orange Rancho anta Ana, Santa Ana Canyon S. of pump house E. of ranch houses. 122 Comment
  RSA522  Daucus pusillus J. T. Howell 1927-6-8 57 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA699551  Daucus pusillus J. Vlahos s.n. Orange Santiago Canyon Comment
  UCSC001457  Daucus pusillus Peter Kamb 1948-6-19 1086 Orange Holy Jim Canyon, Santa Ana Mountains 610 Comment
  CAS-BOT-BC299329  Deinandra fasciculata Agnes M. Bowman 1899-6-1 s.n. Orange Orange Comment
  CAS-BOT-BC299331  Deinandra fasciculata H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  IRVC29253  Deinandra fasciculata Kay Stockwell 1999-7-13 s.n. Orange Cannon Road (extension of Imperial Hwy) at Goldenrod St. Peralta Hills 152 Comment
  RSA749349  Deinandra fasciculata Fred M. Roberts 2008-4-22 6922 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn.,along Haul Rd. near asphalt plant, 2.2 km ENE Rattlesnake Reservoir dam and 2.2 km WNW Bee Peak, Irvine Ranch Conservancy. 188 Comment
  UC75961  Deinandra fasciculata E. A. Zumbro 1902-1-1 388 Orange Comment
  UCR224403  Deinandra kelloggii Robt. L. Allen, Linnell R. Allen 2008-7-27 s.n. Orange Santa Ana Mountains, Long Canyon Watershed, along Long Canyon Road, 128 m southeast of juntion with spur to Mystic Oaks (McConville Camp), 0.48 air miles upslope from junction with Ortega Hwy (SR74) 749 Comment
  CAS-BOT-BC9091  Delphinium cardinale B. D. Stark 1931-6-6 2231 Orange Rancho Santa Ana 137 Comment
  CAS-BOT-BC9095  Delphinium cardinale John Thomas Howell 1927-7-26 2837 Orange SE fork of Claymine Canyon, northern Santa Ana Mtns. 304 Comment
  RSA0005324  Delphinium maritimum Anstruther Davidson 1910-4-20 2471 Orange Corona Del Mar. Comment
  RSA69411  Delphinium parryi F. W. Peirson 1925-4-11 5745 Orange 5 miles south of Laguna Beach. Comment
  RSA787104  Delphinium parryi Keith E. Hoffmaster 1928-5-29 497 Orange San Onofre. CP5. Comment
Read comments
Nov 19 2013
  RSA552933  Delphinium parryi Fred M. Roberts, R. E. Riefner 1989-5-2 4334 Orange Aliso-Wood Canyons Regional Park. Lower Wood Canyons, 3.3km S Multon Peak. 43 Comment
  CAS-BOT-BC121546  Delphinium patens subsp. hepaticoideum Philip Alexander Munz; Robert Daniel Harwood 1920-4-24 3749 Orange Santa Ana Mtns, Sierra Canyon 365 Comment
  RSA2073  Delphinium patens subsp. hepaticoideum Carl B. Wolf 1931-3-6 1856 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 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
  RSA162740  Descurainia californica J. D. Olmsted 1959-4-23 472 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  POM202601  Descurainia pinnata subsp. halictorum L. M. Booth 1932-5-12 1047 Orange Newport Bay. Comment
  RSA689542  Descurainia pinnata subsp. halictorum R. E. Riefner 1999-5-22 99 -291 Orange City of Dana Point, beach west of Pacific Coast Hwy. South of Salt Creek near Ritz Carlton Hotel. USGS Quad: dana Point. 15 Comment
  UCR130486  Descurainia pinnata subsp. halictorum R. E. Riefner Jr. 1999-5-22 99- 291 Orange South Coast, city of Dana Point, west of Pacific Coast Hwy, vicinity of Salt Creek Park and Ritz Carlton Hotel 15 Comment
  CAS-BOT-BC402217  Dicentra chrysantha L. R. Abrams 1901-6-1 1806 Orange Santiago Pk. Comment
  POM50330  Dicentra chrysantha L. R. Abrams 1901-06 1806 Orange Santiago Peak Trail. 915 Comment
  RSA0014989  Dicentra chrysantha Fred M. Roberts 2008-5-20 6989 Orange Lomas de Santiago: Santiago Creek wash north of Hanging Man's Tree Road near confluence of Pancho Cyn., 1.6 km NW Bolero Lookout. Irvine Ranch Conservancy. 349 Comment
  RSA16418  Dicentra chrysantha Percy C. Everett 1935-5-19 6870 Orange Santa Ana Mountains, Baker Canyon, West Ladd Truck trail. 305 Comment
  RSA2093  Dicentra ochroleuca B. D. Stark 1931-5-23 2228 Orange Santa Ana river bottom, SW of Ranch Houses, Rancho Santa Ana 122 Comment
  UCSB52880  Dichondra occidentalis Roberts, Fred 1983-4-7 Orange South Laguna: Niguel Hill, 1.2km ESE Aliso Peak; 2.7km SSW Alicia Fire Station 79 Comment
  RSA731938  Digitaria ciliaris Fred M. Roberts, Sandy Leatherman 2007-11-27 6697 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  POM202523  Digitaria sanguinalis L. M. Booth 1932-6-7 1210 Orange Balboa Island. Comment
  UCD64152  Digitaria sanguinalis Beecher Crampton 1965-10-27 7580 Orange 2 miles east of Irvine, Irvine Blvd. Comment
  SD248332  Dimorphotheca fruticosa R. E. Riefner Jr. 2011-7-1 11 79 Orange City of Newport Beach, beach area west of Shorecliff Road and Cameo Shores Road. 2 Comment
  RSA708441  Diospyros lycioides subsp. lycioides Mark Elvin 2004-5-2 3418 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
  SD220053  Diospyros lycioides subsp. lycioides Mark A. Elvin 2004-5-2 3418 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and Universit Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  CAS-BOT-BC152059  Diplacus longiflorus John Thomas Howell; Alice Eastwood 1937-4-24 3929 Orange 2 miles east of San Juan Hot Springs Comment
  SBBG28885  Diplacus puniceus N. C. Cooper 1944-6-4 1321 Orange Elsinore Mtn, Lookout at top 1066 Comment
  RSA0045523  Diplacus puniceus Stephen Bruff s.n. Orange Lemon H[e]ights [a neighborhood of Tustin?]. PR8. Comment
  RSA0054846  Diplacus puniceus Anonymous s.n. Orange Laguna Canyon. Comment
  UCR173935  Diplotaxis muralis A. C. Sanders, Mark A. Elvin 2006-5-6 32250 Orange South Coast, UC Irvine Arboretum, NE side of gardens toward Campus Dr. 15 Comment
  POM123  Diplotaxis tenuifolia I. M. Johnston 1918-5-4 1927 Orange Santa Ana, at roadside. Comment
  POM20994  Diplotaxis tenuifolia J. Valdes 1924-1-25 s.n. Orange Between Tustin and Santa Ana. Comment
  RSA66079  Diplotaxis tenuifolia W. L. Jepson 1929-8-29 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC195673  Distichlis spicata John Thomas Howell 1927-6-17 2552 Orange Hills on north side of Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC208626  Distichlis spicata Bernard G. G. de Retz 1961-5-16 47611 Orange Huntington Beach Comment
  IRVC29710  Distichlis spicata Barry S. Nerhus, Mark A. Elvin 2006-11-4 15 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  UC537120  Distichlis spicata Lawrence M. Booth 1932-5-25 1116 Orange Balboa Island, newport Bay Comment
  UCSB47954  Distichlis spicata Roberts, D. 1980-5-4 Orange North end of Camino Capistrano Rd; 2nd telephone pole from the end 30 Comment
  UCR12589  Distichlis spicata var. stolonifera J. S. Davis 1972-5-6 720506- 20 Orange South Coast, Newport Beach, 100 yards from the corner of San Joaquin Hills Road and Back Bay Road. 0 Comment
  RSA627743  Dodecatheon clevelandii Scott D. White, Brian Leatherman 1998-1-26 6063 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, ca. halfway between Berkeley Av. and new freeway (Bonita Cyn.) 12 Comment
  SD27980  Draba cuneifolia Carl B. Wolf 1932-2-17 2661 Orange Rancho Santa Ana Botanic Garden, just west of Adenostoma sparsifolum Bed. 600 Comment
  RSA701656  Drymocallis glandulosa Keith E. Hoffmaster 1935-5-5 s.n. Orange San Juan Canyon., Santa Ana Mts. Comment
  IRVC24819  Dryopteris arguta Fred M. Roberts, G. A. Marsh 1986-5-16 2898 Orange ridge above San Juan Canyon, Sitton Peak Truck Trail, 3.9km W Sitton Peak, Santa Ana Mountains 670 Comment
  UCR144741  Dryopteris arguta A. S. Boughey, Pat Pembrook 1965-6-15 1056 Orange Peninsular Ranges; Santa Ana Mountains, 'Saddleback Mountain,' Cleveland National Forest 976 Comment
  JEPS50033  Dudleya blochmaniae subsp. blochmaniae T. W. Minthorn 1924-5-30 Orange Pt. San Juan (Dana Point) Comment
  LA204784  Dudleya blochmaniae subsp. blochmaniae Joan Malloy; 1952-5-18 sn Orange Salt Creek Beach, Laguna Comment
  CAS-BOT-BC428263  Dudleya edulis Reid Moran 1949-5-28 3257 Orange Aliso Canyon, Laguna Beach Comment
  CAS-BOT-BC411411  Dudleya lanceolata Lawrence M. Booth 1931-1-1 1188 Orange Bluff slopes of Newport Bay Comment
  IRVC22733  Dudleya lanceolata Fred M. Roberts 1985-5-13 1788 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  RSA598971  Dudleya lanceolata Scott D. White 1997-3-28 4842 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA0013967  Dudleya multicaulis Fred M. Roberts 2008-4-23 6925 Orange Lomas de Santiago: Loma Ridge, north end along Sheriff Rd., 1.6 km SE Peters Canyn Reservoir dam. 340 Comment
  RSA542536  Dudleya multicaulis Fred M. Roberts, Kathy Keane 1988-5-25 4000 Orange Rancho Mission Viejo: Lower Canada Gobernadora, ca. 2.4 kn SW Cliff Survey Marker. 110 Comment
  UC792938  Dudleya multicaulis Reid Moran 1949-7-2 3285 Orange 0.4 mi above El Toro road junction with Irvine road (s of El Toro road, Laguna Canyon); Laguna Canyon 91 Comment
  UCR37798  Dudleya multicaulis Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  RSA345  Dudleya pulverulenta J. T. Howell 1927-7-16 416 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR222628  Dudleya pulverulenta T. B. Salvato 2010-10-27 5103 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  RSA397833  Dudleya stolonifera Reid V. Moran 1949-7-2 3287 Orange Near mouth of Aliso Canyon, south of Laguna Beach. Comment
  UC905134  Dudleya stolonifera R. V. Moran 1949-7-2 3286 Orange 1.5 mi above canyon mouth (1.7 mi below Toro Rd junction); Laguna Canyon Comment
  RSA17568  Dudleya viscida C. B. Wolf 1936-6-17 2596 Orange Santa Ana Mts., along Ortega Hwy, 6/10 mi below San Juan Hot Springs. 182 Comment
  CAS-BOT-BC197029  Echinochloa colona Ira L. Wiggins 1965-10-2 20269 Orange Curbway at corner of Longview Drive and Dorothy Lane, Fullerton Comment
  CAS-BOT-BC197176  Echinochloa crus-galli Ira L. Wiggins 1965-11-7 20356 Orange Between State College Blvd. and Troy High School campus, Fullerton Comment
  RSA452553  Echinochloa crus-galli Fred M. Roberts 1987-8-19 3586 Orange Santa Ana River: adjacent to Fountain Valley, Harbor Bridge. 13 Comment
  UCR240255  Echinochloa crus-pavonis R. E. Riefner Jr. 2006-9-16 s.n. Orange Yorba Linda, north of Chapman Ave. c. 1 mile along floodplain of Santa Ana River 98 Comment
  POM202732  Echinochloa muricata var. microstachya L. M. Booth 1932-7-25 1314 Orange Santa Ana River 2 miles from ocean. Comment
  RSA443824  Echinodorus berteroi Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel, just N of Warner St. bridge crossing, (No. C05) Comment
  RSA654972  Echinodorus berteroi R. E. Riefner 2000-8-21 20 -728 Orange Irvine Lake [Santiago Reservoir], first cove east of the dam 238 Comment
  RSA528090  Echium candicans A. C. Sanders 1990-10-6 10183 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  JEPS30718  Eclipta prostrata Peter H. Raven 1961-10-15 16849 Orange Anaheim Street, Anaheim, Santa Ana River Bed Santa Ana River Bed, Anaheim, Anaheim Street 60 Comment
  RSA715696  Eclipta prostrata Fred M. Roberts, Chris M. Barnhill 2005-9-27 6276 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  SD236186  Eclipta prostrata A. C. Sanders, Fred M. Roberts 2008-9-18 36069 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  RSA0038516  Ehrharta erecta R. E. Riefner Jr. 2012-2-1 12 -15 Orange city of Dana Point, Dana Point Harbor, vicinity of Puerto Pl. and Dana Point Harbor Drive 2 Comment
  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
  UCR132570  Ehrharta erecta Robert DeRuff 2002-5-2 538 Orange Southern Coast, Newport Back Bay, near 23rd Street 21 Comment
  UCR240173  Ehrharta erecta R. E. Riefner Jr. 2012-2-1 12- 15 Orange South Coast, city of Dana Point, Dana Point Harbor, vicinity of Puerto Pl. and Dana Point Harbor Drive 2 Comment
  UC1543115  Elatine brachysperma Donald G. Nelson 1935-4-15 302 Orange on road from Garden Grove to Costa Mesa converging near Costa Mesa (toward main highway from Santa Ana) Comment
  UC552355  Elatine brachysperma H. H. Tracy 1935-4-10 Orange n Cotsa Mesa Comment
  RSA731949  Elatine californica Fred M. Roberts, Carol A. Roberts 1991-5-22 4801 Orange San Joaquin Hills: Upper Laguna Cyn., Upper Laguna Lake, c.a. 3.6km N by road of El Toro Rd. & 5km ENE Signal Peak. 118 Comment
  RSA799624  Eleocharis acicularis Justin M. Wood 2011-4-12 3664 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA21065  Eleocharis montevidensis Ramon Valverde 1938-8-4 9439 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  UCR137453  Eleocharis montevidensis Scott D. White, Brian Leatherman 1997-6-12 5332 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
  CAS-BOT-BC112163  Eleocharis radicans Steve Boyd; Timothy S. Ross 1994-9-14 8354 Orange Lucas Canyon just downstream of Lucas Canuyon Trail Crossing. 304 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
  RSA752648  Eleocharis radicans A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33024 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
  RSA0117550  Eleocharis rostellata L. M. Booth 1932-6-4 1151 Orange Newport Lagoon. Comment
  RSA746527  Eleusine coracana subsp. africana R. E. Riefner Jr. 2008-12-28 8 -391 Orange City of Irvine, San Diego Creek at Alton Pkwy. 48 Comment
  SEINET3129036  Elymus condensatus W. B. Crockatt sn Orange Capistrano Valley Comment
  UCR207543  Elymus condensatus O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCR281490  Elymus condensatus Mitch Provance 2017-6-9 617- 100 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  UCR92755  Elymus condensatus F. M. Reed 1928-1 6002 Orange Arch Beach, near South Laguna 15 Comment
  RSA798184  Elymus glaucus R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49597 -a Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  SEINET10841966  Elymus stebbinsii subsp. stebbinsii LeRoy R. Abrams Abrams 1822 Orange Santiago Pk. 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
  UCR209332  Emmenanthe penduliflora var. penduliflora Fred M. Roberts 2009-4-11 6889 Orange Lomas de Santiago, Loma Ridge, upper Dripping Springs Canyon, 0.9 km northeast of Bee Peak and 1.2 km west-northwest of Dripping Springs 448 Comment
  HSC5477  Encelia californica C. L. Hitchcock, C. V. Muhlick 1964-3-17 23069 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  RSA681948  Encelia californica Fred M. Roberts, David E. Bramlet 2003-3-7 5569 Orange Donna O'Neill Land Conservancy; Ridge west of Christianitos Canyon, Middle Ridge Trail, 1.1km NW Gato Gate. 178 Comment
  UCSB44180  Encelia californica Henneman, J. 1977-5-21 Orange Newport Back Bay Comment
  IRVC653  Encelia californica B. T. Gittins, R. Hobson 1965-4-10 Orange Comment
  IRVC670  Encelia farinosa D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  LA205846  Encelia farinosa A. M. Johnson; 1932-4-23 4031 Orange N of Orange Comment
  UCR274182  Epilobium brachycarpum Dick Newell, Peter Wetzel 2016-6-7 428 Orange Peninsular Range; Santa Ana Mtns., Silverado Canyon, 0.1 mile NE of Blackstar Canyon Rd. intersection, near Silverado Creek 297 Comment
  JEPS31486  Epilobium canum subsp. canum L. M. Booth 1932-7-27 1320 Orange Corona del Mar Comment
  UCR237923  Epilobium ciliatum Dick Newell, Judy Booth 2012-6-24 276 A Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 1.9 mi. NE of Maple Springs gate 817 Comment
  RSA799940  Epilobium pygmaeum Justin M. Wood 2011-6-28 4303 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  SD245161  Equisetum hyemale subsp. affine R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49565 Orange Santa Ana Mountains: San Joan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR195014  Equisetum laevigatum A. C. Sanders, Fred M. Roberts 2008-8-7 35987 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  CAS-BOT-BC57386  Equisetum laevigatum Helen D. Geis 1902-4-1 s.n. Orange Santa Ana Comment
  POM50293  Equisetum laevigatum Helen D. Gris 1902-11 s.n. Orange Peat Louds Comment
Read comments
Aug 8 2013
  RSA0031657  Equisetum telmateia subsp. braunii Keith E. Hoffmaster 1934-7-3 106 Orange Near Costa Mesa. Comment
  CHSC116469  Eragrostis mexicana subsp. virescens R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  SBBG128578  Eragrostis mexicana subsp. virescens R. F. Thorne, E. Lathrop, W. Wisura 1977-7-8 49567 Orange San Juan Cyn at lower picnic camp, just below Ortega Hwy (74); Santa Ana Mtns Comment
  UCD33017  Eragrostis pectinacea Beecher Crampton 1965-10-27 7583 Orange Orange County, UC - South Coast F.S.. Comment
  RSA697579  Eremocarpus setiger J. Vlahos 1933-1 s.n. Orange Blackstar Canyon. Comment
  SEINET7067527  Eremocarpus setiger A. G. Vestal 1947-6-12 s.n. Orange Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 447562mE, 3725206mN. Comment
  UCR193057  Eriastrum sapphirinum A. C. Sanders, Fred M. Roberts 2008-6-17 35505 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UCR241914  Eriastrum sapphirinum Fred M. Roberts 2012-5-10 7564 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
  RSA0121314  Eriastrum sapphirinum subsp. dasyanthum E. K. Balls 1949-6-16 13477 Orange Growing spontaneously in Botanic Garden (on trail from Skyline Drive to Adolphia), Santa Ana River Canyon. 274 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
  RSA0054858  Ericameria palmeri Keith E. Hoffmaster 1933-10-15 100 Orange Santa Ana mts. Comment
  CAS-BOT-BC299500  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2944 Orange Rancho Santa Ana, Santa Ana Canyon 207 Comment
  RSA2886  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA29367  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA54171  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  UCR220966  Ericameria palmeri var. pachylepis Dick Newell, Don Millar, Michael Dresser 2010-9-21 034 Orange South Coast, access road on east side of Laguna Canyon Rd. at Stage Coach, 1.22 miles north of Hwy 73 toll road 111 Comment
  UCR261718  Erigeron foliosus Dick Newell, Judy Booth 2014-5-15 372 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 0.87 road miles east of the lower Maple Springs gate 623 Comment
  UCR215289  Erigeron foliosus var. foliosus Fred M. Roberts, D. E. Bramlet 2008-5-13 6956 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  IRVC9107  Erigeron foliosus var. stenophyllus R. Seibel 1966-5-18 132 Orange Old Rancho Santa Ana Botanical Garden at end of Orangethorpe Ave. Chino Hills Comment
  RSA298672  Eriodictyon crassifolium D. C. Michener 1982-5-24 4043 Orange 8.4 miles north of El Cariso, Orange County. Comment
  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
  CAS-BOT-BC188114  Eriodictyon parryi P. C. Everett 1935-6-18 7216 Orange Summit of Santiago Peak, Santa Ana Mountains 1731 Comment
  HSC17411  Eriogonum elongatum var. elongatum J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  SEINET182348  Eriogonum fasciculatum Lawrence M. Booth 1932-5-18 1057 Orange Newport bay Bluff Slopes Comment
  UCR192100  Eriogonum fasciculatum subsp. foliolosum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35286 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  SEINET6418402  Eriogonum fasciculatum var. fasciculatum Thomas C. Hensel 1973-7-5 251 Orange Hillside adjacent to southern end of Santa Ana Dr. Laguna Beach 229 Comment
  CAS-BOT-BC249947  Eriogonum fasciculatum var. foliolosum John Thomas Howell 1927-7-24 2836 Orange Near entrance to Claymine Canon [Canyon], Santa Ana Canon [Canyon] 152 Comment
  RSA393426  Eriogonum fasciculatum var. foliolosum F. R. Fosberg 1931-6-21 S 5155 Orange Carbon Canyon, Punete Hills. Comment
  UCSB48025  Eriogonum fasciculatum var. foliolosum Roberts, Fred 1980-7-7 Orange Santa Ana Mtns; San Juan Canyon, Calif. Rte. 74, 2.2km ENE San Juan Guard Station; 0.6km W BM 1100 305 Comment
  UCSB48226  Eriogonum fasciculatum var. foliolosum Roberts, Fred 1981-6-25 Orange Dana Point: On Point, 0.6km W Dana Point Harbor 73 Comment
  CAS-BOT-BC253476  Eriogonum gracile Helen D. Geis 1902-3-1 s.n. Orange Santiago Canyon Comment
  CAS-BOT-BC253481  Eriogonum gracile John Thomas Howell 1927-7-16 2781 Orange Santa Ana Canyon 152 Comment
  SEINET253385  Eriogonum gracile var. gracile L. M. Booth 1933-8-26 1386 Orange Dry hillside Newport Lagoon 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
  RSA420006  Eriogonum parvifolium subsp. paynei Albert J. Perkins 1923-6-28 s.n. Orange Laguna Beach Comment
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Jul 15 2013
  RSA0061167  Eriogonum saxatile Robt. Allen 2007-8-11 s.n. Orange Santa Ana Mountains region: Modjeska Peak, west-facing slope within 2 meters of the access road up Modjeska Peak from Main Divide Road. Approximately midway between the peak's south-facing slope and the sharp bend in the extreme N end of the road. 1643 Comment
  CAS-BOT-BC263016  Eriogonum thurberi P. C. Everett 1935-5-17 6866 Orange Rancho Santa Ana, Santa Ana Canyon 1/4 mi. So. of Orange County Plant Sanctuary 121 Comment
  UC912801  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange river bottom s Walnut Grove; Rancho Santa Ana, Santa Ana Canyon 121 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
  OBI63089  Eriophyllum confertiflorum R. K. Brummitt 1998-5-23 19989 Orange Newport Beach, by marina 10 Comment
  UCR106286  Eriophyllum confertiflorum B. G. Pitzer, M. Georgiady 1997-4-5 3073 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  UCR193541  Eriophyllum confertiflorum A. C. Sanders, Fred M. Roberts 2008-7-3 35667 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  IRVC15665  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey, P. Pembrook 1965-6-18 1018 Orange Los Trancos Canyon at bottom, ; chaparral. San Joaquin Hills Comment
  IRVC21386  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey 1968-7-9 408 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UC421696  Eriophyllum confertiflorum var. confertiflorum John Thomas Howell 1927-6-26 2592 Orange Claymine Canyon n. Santa Ana Mts., Claymine Canyon 243 Comment
  RSA678510  Erodium botrys Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1127 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA391773  Erodium botrys E. R. Johnson 1935-3-1 6293 Orange 1 miles west of Atwood, south side of Railroad. 91 Comment
  RSA703721  Erodium brachycarpum D. E. Bramlet 2003-3-20 3351 Orange Donna O Neill Reserve. NE corner of the reserve 183m west of Cristianitos Rd. and 1.83 km north of the E-W access road. 127 Comment
  HSC7249  Erodium moschatum C. L. Hitchcock 1966-3-15 24138 Orange 1/2 mi. E of Brea Comment
  RSA562761  Erodium moschatum Steve Boyd, T. S. Ross 1992-5-19 7415 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon,. 366 Comment
  OBI11782  Eschscholzia caespitosa Carl B. Wolf 1935-6-19 7222 Orange Santa Ana Mts, Main divide Motorway 1-2/10 mi below summit of Santiago Peak, E slope 1372 Comment
  UCR230229  Eschscholzia californica Dick Newell, Don Millar 2011-3-15 080 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 219 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
  POM50213  Eucrypta chrysanthemifolia Helen D. Geis 1902-1 513 Orange Santiago Creek. Comment
  RSA3173  Eucrypta chrysanthemifolia Carl B. Wolf 1932-3-8 2690 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA794330  Eucrypta chrysanthemifolia Justin M. Wood 2010-3-31 1447 Orange [Santa Ana Canyon:] Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corrridor, west of Green River Golf Course on bluff south of the river. 122 Comment
  RSA683068  Eucrypta chrysanthemifolia var. chrysanthemifolia Fred M. Roberts 2003-3-19 5603 Orange Donna O Neill Land Conservancy: Ridges west of Cristianitos Cyn., 1,750m NNW Sycamore gate and 315m W Cristianitos Rd. (Canada Gobernadora) 192 Comment
  UC537165  Eucrypta chrysanthemifolia var. chrysanthemifolia L. M. Booth 1932-5-19 1063 Orange Newport Beach Comment
  LA209966  Eucrypta chrysanthemifolia var. chrysanthemifolia W. E. Pequegnat; 1939-4-8 Orange 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
  SD211599  Euphorbia Louis C. Wheeler 1946-8-8 6225 Orange Imperial Highway 1/4 mile West of Caroline Avenue, 2 miles East-Southeast of Brea Comment
  RSA708445  Euphorbia albomarginata Mark Elvin 2004-5-2 3248 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
  POM9049  Euphorbia crenulata P. A. Munz 1920-4-25 3729 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  RSA542541  Euphorbia lathyris Fred M. Roberts, William L. Smith 1988-7-30 4126 Orange San Juan Capistrano: Horno creek, Marbella country club, just east of Rancho Viejo road.. 0.8 km NE Mission San Juan Capistrano. 43 Comment
  CLARK-A1528-5001  Euphorbia maculata John C. Roos 1937-5-21 2066 Orange Orange Comment
  CAS-BOT-BC539351  Euphorbia misera R. E. Riefner, Jr. 2012-12-5 12 -587 Orange City of Dana Point, Dana Point Harbor, Dana Harbor Dr near Cove Rd. 8 Comment
  POM186306  Euphorbia misera Joseph A. Ewan 1932-7-28 7708 Orange Corona Del Mar Comment
  RSA305657  Euphorbia misera B. Busenberg 1979-11-14 1925 Orange North of Marina parking lot, Dana Point Comment
  RSA518463  Euphorbia misera Gary D. Wallace 1966-4-30 522 Orange West of Dana Point. Comment
  RSA719422  Euphorbia misera Fred M. Roberts, Lee Ann Caranza 2006-10-25 6455 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  SEINET7249217  Euphorbia misera R. E. Riefner Jr. 2012-1 12 -518 Orange City of Dana Point, Dana Point Harbor, 'Bluff Top Trail' located near Camino Capistrano and Violet Latern Streets. 35 Comment
  UCR222625  Euphorbia misera T. B. Salvato 2010-10-27 5106 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
  RSA734741  Euphorbia peplus L. C. Wheeler 1946-3-6 6173 Orange Newport Bay. Mainland north of east end of Balboa Island. 3 Comment
  UCD142472  Euphorbia peplus R. Townsend 1939-12-28 152 Orange Yorba Linda. Comment
  UCR192492  Euphorbia polycarpa A. C. Sanders, Fred M. Roberts 2008-3-25 34560 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC27724  Euphorbia serpens Mark A. Elvin 2004-5-2 3428 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 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
  JEPS52425  Euphorbia spathulata Alice King Apr 1908 Orange Santa Ana Mts. Comment
  UCSB52990  Euthamia occidentalis Roberts, Jr., Fred 1983-9-29 Orange Irvine; San Joaquin Freshwater Marsh, 1.9 km. NNW UCI campus center 2 Comment
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Dec 12 2018
  UCR194561  Festuca A. C. Sanders 2008-4-29 35133 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-BC474740  Ficus carica R. E. Riefner, Jr. 2015-8-29 15 -370 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco 363 Comment
  IRVC28201  Ficus carica A. C. Sanders, Mark A. Elvin 2005-9-2 31606 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Cyn, along trail in the switchbacks. Santa Ana Mountains 970 Comment
  RSA0116286  Ficus microcarpa R. E. Riefner Jr. 2015-8-30 15 -377 Orange City of Anaheim, Pearson Park, near center of park, N of North Helena St. and West Cypress St. 45 Comment
  IRVC25385  Filago gallica Fred M. Roberts 1987-4-3 3354 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
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Feb 17 2017
  IRVC3697  Foeniculum vulgare Anonymous 1965-4-14 Orange Dana Point Comment
  RSA746043  Foeniculum vulgare Alyssa J. Lai 2006-2-4 1 Orange Southern Coastal: San Joaquin Marsh; NW edge of marsh 3 Comment
  CAS-BOT-BC53337  Frangula californica subsp. cuspidata P. C. Everett 1935-6-18 7217 Orange Santa Ana Mts., Summit of Santiago Pk. 1731 Comment
  RSA391401  Frankenia grandifolia Joseph A. Ewan 1932-7-28 7701 Orange Corona Del Mar Comment
  RSA201850  Frankenia grandifolia L. M. Booth 1932-5-12 1037 Orange Newport Bay. Comment
  UCD99588  Frankenia salina E. Frost 1996-5-11 15 Orange Newport Back Bay, 25 yards in along bike path. 7 Comment
  UCR130495  Frankenia salina R. E. Riefner Jr. 2002-5-4 02- 95 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  IRVC29832  Fraxinus Tom McCrainie, Mark A. Elvin 2006-9-23 6 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
  RSA1068  Fraxinus dipetala J. T. Howell 1927-7-26 482 Orange Claymine Canyon near Sierra Peak. 213 Comment
  RSA698196  Fraxinus dipetala J. Vlahos 1934-4-6 s.n. Orange Top of Black Star Canyon. Comment
  UCR119309  Fraxinus dipetala R. E. Riefner Jr. 2000-2-19 20- 119 Orange Santa Ana Mountains, North Ranch Policy Plan Area. Fremont Canyon: north of Santiago Creek and immediately north of major stream fork 305 Comment
  CAS-BOT-BC538093  Fraxinus uhdei R. E. Riefner, Jr. 2014-11-28 14 -408 Orange City of Newport Beach, SW corner Jamboree Rd. at MacArthur Blvd 16 Comment
  IRVC29786  Fraxinus uhdei Mark A. Elvin, Dean Kelch 2006-12-9 5304 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA697662  Fumaria officinalis Marie Osborn 1929-3-5 s.n. Orange E. 17th St. Santa Ana. Comment
  RSA201607  Fumaria parviflora Unspecified 1969-3-2 s.n. Orange East of Trabuco and Yale roads 91 Comment
  UCSB52911  Funastrum cynanchoides var. hartwegii Roberts, Fred; Pedderson, G. 1984-9-5 Orange Coto de Caza: Wagon Wheel Canyon, 6.4km NNE Median Survey Mark; 1.0km SE Bench Mark 657, 290 Comment
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Oct 28 2018
  UCR132569  Gaillardia X grandiflora Robert DeRuff 2001-9-19 s.n. Orange Southern Coast, Newport Back Bay, Shellmaker Island 1 Comment
  RSA0013915  Galium angustifolium Fred M. Roberts 2012-5-10 7579 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
  RSA702703  Galium angustifolium Scott D. White, Michael Honer 2004-5-17 10388 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
  POM18138  Galium angustifolium subsp. angustifolium Philip A. Munz 1923-9-7 7761 Orange Santa Ana Mts. Trail from Trabuco Canyon to summit. 1220 Comment
  RSA5926  Galium angustifolium subsp. angustifolium Carl B. Wolf 1932-7-2 3827 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA609650  Galium angustifolium subsp. angustifolium R. S. Woglum 1938-5-8 1615 Orange Peninsular Ranges: Capistrano to Elsinore; Santa Ana Mountains [Orange and Riverside counties]. Comment
  RSA636102  Galium angustifolium subsp. angustifolium Valerie L. Soza, LeRoy Gross 1999-6-7 490 a Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA7473  Galium angustifolium subsp. angustifolium Carl B. Wolf 1933-8-24 5397 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 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
  CDA42130  Galium aparine D. H. Byers 1957-6-25 s.n. Orange [No further data.] 0 Comment
  UCSC001312  Galium aparine Peter Kamb 1948-6-19 1091 Orange Holy Jim Canyon, Santa Ana Mts. 610 Comment
  RSA67135  Galium nuttallii F. W. Peirson 1924-5-31 4665 Orange 5 miles southeast of Laguna Beach. Comment
  CAS-BOT-BC94862  Galium nuttallii subsp. nuttallii R. C. Wenk 2008-3-24 722 Orange Chino Hills S.P., South Ridge Road west of San Juan Hill, going W from Equestrian Staging Area 441 Comment
  UC1608263  Galium parisiense Steve Boyd and Tim Ross 1992-5-19 7428 Orange along Lucas Canyon Trail from access road to Rancho Carillo (7SO6) n to Aliso Canyon (w edge of wilderness); Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 365 Comment
  RSA542398  Galium parisiense Fred M. Roberts, K. Keane 1988-5-26 4013 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  RSA698801  Galium porrigens var. porrigens Unspecified s.n. Orange Lower Trabuco. Comment
  JEPS6547  Galium trifidum var. pacificum Lawrence M. Booth 1932-7-4 1244 Orange Newport Bay Comment
  CAS-BOT-BC178505  Garrya flavescens Carl B. Wolf 1933-8-24 5383 Orange Along Main Divide Motorway between Bedford Pk. & Santiago Pk, Santa Ana Mts. Comment
  IRVC24957  Garrya flavescens var. pallida Fred M. Roberts, Gordon A. Marsh 1986-6-6 2931 Orange Santa Ana Mountains; ridge S of Mabey Canyon, just N of Skyline Dr. near Orange County line; 2.7km SE Sierra Peak. Peninsular Ranges 820 Comment
  RSA303834  Garrya flavescens var. pallida Jim R. Shevock 1972-1-16 1334 Orange Silverado Canyon. 610 Comment
  RSA391430  Garrya veatchii Christopher Davidson 1977-5-18 5605 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  RSA750001  Gastridium phleoides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35321 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  UC537117  Gastridium ventricosum Lawrence M. Booth 1932-5-19 1082 Orange Newport Bay Comment
  UCR194863  Gastridium ventricosum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35321 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  CDA5171  Gaura drummondii Johnson 1939-8-3 5 Orange Brea. 0 Comment
  RSA749296  Gilia achilleifolia Fred M. Roberts, Linda Farley 2008-3-28 6816 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
  RSA734014  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-4-22 35061 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfil on road from H icks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado. 493 Comment
  RSA470266  Gilia capitata subsp. abrotanifolia M. B. Dunkle 1933-5-30 3579 Orange Santa Ana Canyon. Comment
  RSA736577  Gnaphalium beneolens Keith E. Hoffmaster 1934-4-8 142 Orange Santa Ana Mts. Comment
  UCR193463  Gnaphalium canescens subsp. microcephalum A. C. Sanders, T. B. Salvato 2008-5-13 35353 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA703730  Gnaphalium leucocephalum Fred M. Roberts, David E. Bramlet 2004-7-30 6088 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy Cristianitos Canyon, along Cristianitos Ck., 0.93 km SSW Gato Gate and 0.23 km W Cristianitos Road. 76 Comment
  IRVC19530  Gnaphalium luteo-album R. L. Allen 1983-2-24 A644 Orange 3160 Air[way] Ave. along Paularino; weed in blue grass lawn. Costa Mesa Comment
  JEPS20430  Gnaphalium palustre L. M. Booth 1932-5-24 1086 Orange Newport Bay Comment
  IRVC25388  Gnaphalium stramineum Fred M. Roberts 1987-4-3 3351 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  IRVC9357  Gnaphalium stramineum B. T. Gittins 1963-5-29 239 Orange Orange State College. Fullerton Comment
  RSA698232  Godetia bottae Kenneth Beard 1934-05 s.n. Orange Ladd Canyon. Comment
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Oct 31 2011
  RSA603291  Grindelia camporum R. E. Riefner 1997-7-12 97 -232 Orange San Clemente State Beach Comment
  UCR242757  Grindelia camporum Fred M. Roberts 2012-5-10 7578 Orange SAN JOAQUIN HILLS: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit 154 Comment
  CAS-BOT-BC305210  Grindelia hirsutula L. R. Abrams 1917-6-23 6566 Orange Balboa Comment
  UC897086  Grindelia hirsutula Julian A. Steyermark 1933-10-29 Orange San Clemente, Orange Co., on clay soil of coastal mesa. Comment
  RSA542434  Grindelia robusta Fred M. Roberts, Karlin G. Marsh 1988-4-25 3930 Orange San Joaquin Hills: Irvine Coast, 1.1km SW Pelican Hill. 44 Comment
  RSA753161  Guillenia lasiophylla D. E. Bramlet 2008-3-31 4133 Orange 305m E of Upper Hicks Haul Rd, in Trib to Limestone Cyn., 1km S of Santiago Cyn. Rd. 311 Comment
  POM359185  Gutierrezia californica F. R. Fosberg 1931-6-21 749 Orange Lower Santiago Canyon. Comment
  RSA542435  Gutierrezia californica Fred M. Roberts, K. Keane 1988-5-26 4006 Orange Rancho Mission Viejo: tributary to Trampas Canyon, along Christianitos Raod, 2.4km ESE Viejo Survey Mark. 135 Comment
  RSA627787  Hainardia cylindrica Scott D. White 1998-6-26 6785 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 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
  LA202463  Haplopappus palmeri subsp. pachylepis Lawrence M. Booth; 8853 Orange Newport Beach Comment
  RSA232067  Hazardia squarrosa var. grindelioides C. W. Tilforth 1972-8-20 624 Orange Along County Rd. S19, between Cooks corner and O'Neil Park Comment
  SD152934  Hedypnois cretica Steve Boyd, Tim Ross 1992-5-20 7462 Orange Southern Santa Ana Mountains; western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail and spur trail to old mining habitations. 305 Comment
  UCR79270  Hedypnois cretica Steve Boyd, T. S. Ross 1992-5-20 7462 Orange Southern Santa Ana Mtns, San Mateo Canyon Wilderness Area: Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail, upstream 0.25 mi to spur trail leading to old mining habitations in side canyon. 412 Comment
  UCSB52872  Hedypnois cretica Roberts, Fred 1983-3-27 Orange Dana Point Headlands: north of Dana Strand Rd., 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School 80 Comment
  CDA6459  Hedypnois cretica Margaret Bellue, G. C. Fleischman 1945-5-8 Orange Near Brea, Union Oil Property. 0 Comment
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Aug 18 2010
  SD247594  Hedypnois cretica R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49670 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  RSA725583  Helianthemum scoparium Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6530 Orange dirt road along ridge between Black Star and Fremont Canyons, 4.4km ENE Irvine Lake spillway and 2.4km WSW Hidden Ranch. 662 Comment
  RSA0096954  Helianthemum scoparium var. aldersonii P. A. Munz 1923-6-14 7054 Orange Glen Ivy Trail to Santiago Peak. 1220 Comment
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Feb 22 2019
  UCSB18935  Helianthus annuus Cummings, Bob 1963-5-11 Orange U.S. Highway 101 alternate, 2 miles NW of San Clemente Comment
  RSA184154  Helianthus annuus subsp. lenticularis I. L. Wiggins 1965-5-24 20285 Orange Roadside along Skyline Dr. near intersection with Raymond St. Fullerton. Comment
  CAS-BOT-BC305655  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, n. of El Toro, ca. 11 mi. s.e. of Tustin Comment
  POM360030  Helianthus ciliaris E. L. Paddock 1941-8-1 s.n. Orange Graham-Loftus property, 2 miles east of Brea Comment
  IRVC14819  Helianthus gracilentus A. S. Boughey 1968-7-9 401 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA725574  Helianthus gracilentus Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6531 Orange dirt road along ridge between Black Star and Fremont Canyons, 4.4km ENE Irvine Lake spillway and 2.4km WSW Hidden Ranch. 662 Comment
  RSA874  Helianthus gracilentus J. T. Howell 1927-7-3 256 Orange Claymine Canyon near Sierra Peak. 305 Comment
  JEPS67987  Heliotropium curassavicum Alice King May 1908 Orange near Santa Ana <R. ?> Newport Comment
  UCSB48091  Heliotropium curassavicum Roberts, Jr., Fred 1981-5-2 Orange Mission Viejo: Camino Capistrano, 1.7km N Crown Valley Parkway 49 Comment
  RSA0037205  Heliotropium curassavicum Darren Day, Hal Willis 1984-5-17 025 Orange This plant was found growing 2.3 miles outside of the city of Laguna Beach, on Laguna Canyon Rd. heading north, on the east side of the road. Comment
  POM47586  Heliotropium curassavicum var. oculatum I. M. Johnston 1924-8-29 s.n. Orange 3.5 miles N of Balboa. Comment
  RSA74877  Heliotropium curassavicum var. oculatum Elroy Robinson 1935-6-28 s.n. Orange San Clemente, along Santa Fe Railway. Comment
  UCD132946  Helminthotheca echioides P. B. Kennedy 1924-2-13 s.n. Orange Huntington Beach District. Comment
  POM215121  Hemizonia australis D. D. Keck 1933-9-17 2524 Orange Westminister Comment
  RSA5803  Hemizonia australis C. B. Wolf 1932-6-28 3781 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA699662  Hemizonia fasciculata Keith E. Hoffmaster 1928-5-29 s.n. Orange San Onofre. CP5. Comment
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Nov 19 2013
  UCR191218  Hemizonia fasciculata A. C. Sanders 2008-4-29 35142 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
  UCR177696  Hemizonia parryi subsp. australis Fred M. Roberts 2003-7-8 5955 Orange Coastal Plains & Basins; Los Angeles Basin region, Orange: Orange Park Acres, along Santiago Creek, 0.5km E Cannon Road and 0.3km N Santiago Canyon Rd. 117 Comment
  UCSB52949  Hesperocnide tenella Roberts, Fred; Allen, R. 1983-3-27 Orange Dana Point Headlands: above Dana Strand Beach, 0.9km W Dana Point Harbor; 1.0km SW Richard Henry Dana School 40 Comment
  RSA0072389  Heteromeles arbutifolia K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 3 Orange Cleveland National Forest, 0.5 mi. N Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mtns., ridge top. 917 Comment
  CAS-BOT-BC318908  Heterotheca grandiflora John Thomas Howell 1927-9-24 3112 Orange North side of Santa Ana Canyon 365 Comment
  IRVC791  Heterotheca grandiflora C. Thompson 1965-2-28 Orange Corona Del Mar: Corona Highlands Southern Coastal Comment
  IRVC799  Heterotheca grandiflora A. S. Boughey 151 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  RSA0074065  Heterotheca grandiflora Scott D. White, Michael Honer 2004-5-17 10383 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
  UCR12562  Heterotheca grandiflora J. S. Davis 1972-5-6 720506- 28 Orange South Coast, Newport Beach. 3.2 mi N on Back Bay Road from corner of San Jaquin Hills Road in roadside turnout 6 Comment
  UCSB44177  Heterotheca grandiflora Henneman, J. 1977-5-21 Orange Newport Back Bay 6 Comment
  RSA0045507  Heterotheca grandiflora William Blanchard 1932-4-24 s.n. Orange Near Irvine. PR8. Comment
  RSA0075817  Heterotheca grandiflora I. L. Wiggins 1966-3-16 20523 Orange Recent road cut near Orange County refuse disposal area. Comment
  SD113060  Heterotheca grandiflora Darley F. Howe 1971-10-25 4791 Orange Near corner of Brookhurst and Lincoln Ave., Anaheim. Comment
  SEINET10813378  Heterotheca subaxillaris David B. Dunn 1971-8-13 Dunn 18130 Orange Cultivated plants vicinity of Laguna Beach, CA. Comment
  UCD150984  Hieracium argutum D. S. Park 2010-4-25 29 Orange Whiting Ranch Wilderness Park, along trail. Open, disturbed areas. 254 Comment
  UCD150988  Hieracium argutum D. S. Park 2010-4-25 31 Orange Whiting Ranch Wilderness Park, along trail. 254 Comment
  CAS-BOT-BC55397  Hirschfeldia incana L. R. Abrams 1897-7-5 6603 Orange Capistrano. Comment
  JEPS53884  Hirschfeldia incana L. M. Booth 1932-6-9 1170 Orange Coastal Santa Ana R. Comment
  RSA732170  Hirschfeldia incana A. C. Sanders, Fred M. Roberts 2008-3-25 34540 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA754069  Hirschfeldia incana A. C. Sanders, Fred M. Roberts 2008-7-16 35863 Orange Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  UCSB48229  Hirschfeldia incana Roberts, Fred 1981-7-8 Orange Rancho Mission Viejo: Calif. Rte. 74, 5.2 km ENE San Juan Capistrano by road 100 Comment
  CAS-BOT-BC207960  Hoffmannseggia glauca Margaret K. Bellue 1933-6-7 s.n. Orange Unspecified Comment
  RSA7325  Hoita macrostachya E. R. Johnson 1933-7-6 5168 Orange 1/2 mile south of Mexican houses, Rancho Santa Ana 122 Comment
  CAS-BOT-BC150003  Holodiscus discolor var. discolor B. D. Stark 1931-6-10 2248 Orange East fork of Claymine Canyon, north end of Santa Ana Mountains 304 Comment
  RSA725575  Holodiscus microphyllus Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6539 Orange Upper Fremont Canyon, 5.3 km ENE Irvine Lake Spillway and 1.6 km W Hidden Ranch. 738 Comment
  UCD22756  Homalocladium platycladum A. T. Leiser 1974-9-26 s.n. Orange So. Coast Field Sta. Comment
  CAS-BOT-BC285000  Hordeum depressum P. A. Munz 1918-5-5 2192 Orange Laguna Beach Comment
  RSA597730  Hordeum depressum D. E. Bramlet 1996-4-20 2458 Orange Marsh adj. to Upper Newprot Bay, approx. 122m southeast of the end of University Dr. and 15.2m west of the Delhi channel., UTM 37 23 830mN, X 4 18 180m E 1 Comment
  RSA608538  Hordeum depressum D. E. Bramlet 1996-4-20 2458 A Orange Marsh adj. to Upper Newprot Bay, approx. 122m southeast of the end of University Dr. and 15.2m west of the Delhi channel., UTM 37 23 830mN, X 4 18 180m E 1 Comment
  RSA627782  Hordeum depressum Scott D. White 1998-4-9 6268 Orange UCI Campus; North Campus wetlands reserve area; north of San Joaquin Channel and east of MacArthur Blvd. 15 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
  UCR157712  Hordeum intercedens Adrian Wolf 1998-5-15 285 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  SEINET11678404  Hordeum murinum J. F. Bright, Wyman, C. 1933-1 8206 Orange DelToro Comment
  HSC94292  Hordeum murinum subsp. murinum D. Atwood 1993-3-28 17710 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
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Jul 8 2010
  UCR247909  Horkelia cuneata subsp. cuneata Fred M. Roberts 2013-6-7 7781 Orange Peninsular Ranges, SANTA ANA MTNS.: Tributary to Upper San Juan Canyon near Chiquito Basin Trail, 1.1 km NNW Upper San Juan Campground. 518 Comment
  IRVC17879  Hulsea heterochroma G. Reynolds 1980-7-3 Orange along fire road, west side of Modjeska Peak, near top, Santa Ana Mountains Comment
  IRVC813  Hypochaeris glabra L. McCabe 1965-4-6 Orange Corona del Mar. Newport Beach Comment
  UCR261715  Hypochaeris radicata Dick Newell, Don Millar 2015-3-24 397 Orange South Coast, San Joaquin Hills, on Serrano Ridge 0.25 mi. due east of 73 Toll Rd. overcrossing 249 Comment
  RSA0038505  Ipomoea cairica R. E. Riefner Jr. 2012-11-27 12 -563 Orange city of laguna Beach, South Crescent Beach, Circle Way near Cliff Drive 3 Comment
  CAS-BOT-BC315732  Isocoma menziesii B. Pitzer; T. Tennant 1997-11-8 3377 Orange Pelican Point Area, grassland area between Pacific Coast Hwy. and the bike trail, Crystal Cove State Park 30 Comment
  RSA638196  Isocoma menziesii Scott D. White 1998-10-19 7190 Orange Yorba Linda: Dissected south and SW-facing foothill slope ca. 1/2 mi S of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development. 152 Comment
  UCR151115  Isocoma menziesii Scott D. White 1998-10-15 7184 Orange Santa Ana Mtns foothills, Yorba Linda, c. 0.5 mi south of Telegraph Canyon between Ohio St. and Fairmont 305 Comment
  RSA167492  Isocoma menziesii var. menziesii R. F. Thorne, Percy C. Everett 1963-9-25 33211 Orange On disturbed bluff top, Dana Point. Comment
  RSA683848  Isocoma menziesii var. menziesii Scott D. White, Brian Leatherman 2003-10-30 9848 Orange Foothills; Oso Parkway crossing over Chiquita Canyon. 198 Comment
  UCR223956  Isocoma menziesii var. sedoides Fred M. Roberts 2008-10-9 7123 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, base of cliff adjacent to Dana Strands Beach, 0.8 km west northwest of Marine Institute, Dana Point Harbor 3 Comment
  CAS-BOT-BC311656  Isocoma menziesii var. vernonioides David D. Keck 1932-9-30 1906 Orange Dana Point, near San Juan Capistrano Comment
  RSA264440  Isocoma menziesii var. vernonioides C. W. Tilforth 1976-10-21 1225 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana. Comment
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Mar 18 2011
  RSA5815  Isocoma menziesii var. vernonioides C. B. Wolf 1932-6-28 3807 Orange Edge of field on Bryant Ave., 300 ft. W. of N.E. corner of N.W. 1/4 of S.E. 1/4 sect27 T4S RNW 9 Comment
  RSA702808  Isocoma menziesii var. vernonioides Scott D. White 2004-7-7 10600 Orange South Coast: Laguna Niguel. 61 Comment
  SBBG16549  Isocoma menziesii var. vernonioides E. B. Carlton 1961-9-3 C 4 Orange Laguna Beach, E on Hidden Valley Rd, ca. 1 mi from Broadway and S. Coast Rd 91 Comment
  SD136909  Isocoma menziesii var. vernonioides Steve Boyd, Tim Ross 1994-9-14 8344 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness area, Lucas Canyon trail at stream crossing in Aliso Canyon 341 Comment
  RSA722089  Isocoma menziesii var. vernonioides R. E. Riefner 2004-9-18 04 -425 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. 105 Comment
  UCSB70085  Isolepis cernua Sanders, A. 2008-7-3 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
  CLARK-A1528-2387  Isomeris arborea John C. Roos 1937-2-23 1314 Orange Laguna Hills Comment
  CSUSB713  Isomeris arborea R. P. Sunderman 1968-5-11 Orange Beach just south of Corona del Mar Comment
  RSA696236  Isomeris arborea Olive Bernice Spears 1932-5-5 s.n. Orange Corona del Mar Comment
  UCR237932  Isomeris arborea Mark A. Elvin 2003-2-2 2258 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 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
  UCR98234  Isomeris arborea B. G. Pitzer 1997-4-15 3133 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
  UC72699  Isomeris arborea E. A. Zumbro 1902-1 372 Orange Comment
  UC729954  Iva axillaris subsp. robustior Carl B. Wolf 1932-6-28 3804 Orange edge of field Bixby Ave; Bryant Ranch 228 Comment
  RSA651865  Jasminum humile Booisseranc s.n. Orange Front of Congressional Church, Breolinda. Comment
  POM361340  Jaumea carnosa F. R. Fosberg 1930-7-10 3180 Orange Anaheim Landing. [Los Angeles Co. on label] 1 Comment
  RSA701954  Jepsonia parryi Fred M. Roberts, Robert L. Allen 2004-1-16 6021 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.63 km SSW Gato Gate and 0.23km W of Cristianitos Rd. 107 Comment
  RSA797478  Jepsonia parryi R. F. Thorne 1977-11-21 49991 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  RSA594900  Jepsonia parryi Fred M. Roberts Jr. 1991-11-17 4824 Orange Lomas de Santiago: Foothill Ranch, north of El Toro Road, ca. 5.0km SSE Bolero Lookout. 274 Comment
  CAS-BOT-BC101917  Juglans californica John Thomas Howell 1927-7-27 2847 Orange Hills on n. side of Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC101959  Juglans californica Carl B. Wolf 1936-7-8 8103 Orange W. side of Durant St., Santa Ana 30 Comment
  HSC13962  Juglans californica S. M. Clapp 1966-4-10 39 Orange 1 mi. N of Brea, on Brea Canyon Rd. 61 Comment
  RSA172  Juglans californica J. T. Howell 1927-7-27 485 Orange Near ranch, Rancho Santa Ana 152 Comment
  SD138020  Juglans californica Carl B. Wolf 1939-11-29 42257 Orange Orange County Picnic Grounds Comment
  UCR16466  Juglans californica J. N. Bullock 1970-4-11 s.n. Orange a north side canyon of Tonner Canyon 168 Comment
  UCR234144  Juglans californica Dick Newell, Judy Booth 2012-3-22 231 Orange South Coastal Plain, Willow Canyon, Laurel Loop Trail, off Laguna Canyon Rd. 75 Comment
  UCR240199  Juglans californica C. J. Minar 1994-4-16 01 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
  UCR247895  Juglans californica Fred M. Roberts 2013-8-9 7802 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.8 km ENE Silverado School and 1.5 km up stream Black Star Road crossing. 325 Comment
  RSA0011061  Juglans californica I. L. Wiggins 1965-5-27 20310 Orange Near Los Angeles County Line, along Brea Canyon Road. Comment
  SBBG128110  Juglans californica R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49613 Orange Ortega Hwy (74), ca. 2.5 mi above San Juan Fire Station; Santa Ana Mtns Comment
  SD245393  Juglans californica R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49613 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station. Comment
  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
  CAS-BOT-BC229009  Juglans hindsii R. E. Riefner, Jr. 2011-9-10 11 -124 Orange Santa Ana Canyon, I-91 northbound, S side of freeway, located within 100 ft of the Riverside County line 127 Comment
  CAS-BOT-BC334501  Juglans hindsii R. E. Riefner, Jr. 2010-9-8 10 -121 Orange City of Laguna Beach, Laguna Canyon, ca 0.15 mi S of El Toro Rd. on E side of Laguna Canyon Rd. 75 Comment
  RSA0024927  Juglans hindsii R. E. Riefner Jr. 2013-11-6 13 -234 Orange City of Laguna Beach, Laguna Canyon, N of Phillips St. on E side of Laguna Canyon Rd. 71 Comment
  SD253480  Juglans hindsii R. E. Riefner Jr. 2010-9-8 10 121 Orange City of Laguna Beach, Laguna Canyon, ca 0.15 mile S of El Toro Road on E side of Laguna Canyon Road. 74 Comment
  UCR246398  Juglans hindsii R. E. Riefner Jr. 2010-9-8 10- 121 Orange South Coast, city of Laguna Beach, Laguna Canyon, c. 0.15 mi south of El Toro Road on east side of Laguna Canyon Road 75 Comment
  SBBG128386  Juglans hindsii R. E. Riefner Jr. 2010-9-8 10 -121 Orange Laguna Cyn, ca. 0.15 mi S of El Toro Rd on E side of Laguna Cyn Rd; Laguna Beach 75 Comment
  UC774593  Juglans regia C. B. Wolf 1939-11-29 9545 Orange Orange County Picnic Grounds Comment
  RSA795707  Juncus W. R. Ferren 1991-12-3 EPA- 18 Orange Cook Creek, tributary to Aliso Creek, San Juan Capistrano. Comment
  JEPS66901  Juncus acutus subsp. leopoldii Lawrence M. Booth 1932-5-24 1102 Orange Newport Bay Comment
  UCR191445  Juncus bufonius A. C. Sanders, Fred M. Roberts 2008-4-8 34728 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCSB48028  Juncus bufonius var. bufonius Roberts, Fred 1980-5-4 Orange Mission Viejo: along Santa Fe Railroad and Camino Capistrano; 1.7km N Crown Valley Parkway; 1.1km S BM 316 14 Comment
  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
  SD245183  Juncus macrophyllus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49575 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  UCSB48193  Juncus macrophyllus Roberts, Fred 1981-6-26 Orange Santa Ana Mts; east fork Viejo Cyn; 0.6 km N Calif. Rte. 74; 2.7 km E San Juan Guard Station 326 Comment
  UCR17849  Juncus patens A. C. Sanders 1976-3-11 783 Orange Santa Ana Mtns., Black Star Canyon 427 Comment
  UCR247891  Juncus patens Fred M. Roberts 2012-7-18 7662 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill 52 Comment
  RSA50308  Juncus phaeocephalus E. K. Balls 1949-5-9 13467 Orange [Rancho Santa Ana] Botanic Garden, Santa Ana River Canyon. 198 Comment
  RSA663202  Juncus rugulosus R. E. Riefner 2000-3-26 20 -151 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of major stream fork along W. channel drainage 335 Comment
  RSA715247  Juncus rugulosus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33025 Orange San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 366 Comment
  UCR138410  Juncus rugulosus Scott D. White, Brian Leatherman 1997-6-12 5317 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
  UCR217668  Juncus textilis Fred M. Roberts, R. E. Riefner Jr. 2008-5-30 7023 Orange South Coast, Lomas de Santiago, Loma Ridge, Hanging Man's Tree Canyon, along Hanging Man's Tree Canyon Road, c. 0.4 km west of Santiago Canyon Road and 1.23 km north of Bolero Lookout 372 Comment
  UC520018  Juncus xiphioides Joseph Andorfer Ewan 1932-7-9 7484 Orange 4 mi below Rincon (Prado); Santa Ana River Comment
  UCR193843  Juncus xiphioides A. C. Sanders, Fred M. Roberts 2008-7-16 35857 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  RSA683839  Juniperus californica Scott D. White, Michael Honer 2003-5-29 9422 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
  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
  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
  UCR246394  Juniperus rigida var. conferta R. E. Riefner Jr. 2012-10-21 12- 521 Orange South Coast, city of Newport Beach, Corona del Mar, c. 0.5 mi south from the intersection of Poppy Ave./Ocean Blvd. at Little Corona Beach 12 Comment
  RSA293256  Keckiella antirrhinoides D. C. Michener 1980-6-5 3666 Orange Santa Ana Mtns near El Cariso. Steep slopes at head of Dickey Canyon (Alberhill Quadrangle) with Asenostoma. 900 Comment
  RSA612318  Keckiella antirrhinoides Louis C. Wheeler 1932-7-9 943 Orange Santa Ana River 5 miles below Prado. 152 Comment
  CAS-BOT-BC235532  Keckiella antirrhinoides var. antirrhinoides A. J. Perkins 1909-6-1 s.n. Orange Orange County Park Comment
  UC1618100  Keckiella antirrhinoides var. antirrhinoides Donald G. Nelson 1935-7-6 259 Orange San Juan Canyon Comment
  LA209269  Keckiella cordifolia W. E. Pequegnat; August 1937 16 Orange Santa Ana Mountains, Santiago Peak 1523 Comment
  LA209275  Keckiella cordifolia Norman C. Cooper; 1944-6-4 1340 Orange San Juan Canyon 304 Comment
  RSA293307  Keckiella cordifolia D. C. Michener 1980-6-21 3683 Orange Starr Audubon Sanctuary. Riparian woodland margin in Crow Creek ca. 1.5 mi. north of confluence with Bell Canyon. 250 Comment
  RSA649976  Keckiella cordifolia Gat Shlomo 1959-5-12 33 Orange Carbon [Canyon] Comment
  SBBG47452  Keckiella cordifolia N. C. Cooper 1944-6-4 1340 Orange San Juan Cyn 304 Comment
  SEINET7067530  Keckiella cordifolia A. G. Vestal 1947-6-12 s.n. Orange Santiago Creek Valley 0.4 miles below Silverado Canyon fork. Coordinate datum: NAD27. UTM Zone 11, 438769mE, 3733678mN. 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
  LA209317  Keckiella ternata W. E. Pequegnat; 1937-8-11 18 Orange Santa Ana Mountains, Santiago Peak 1188 Comment
  POM18123  Keckiella ternata subsp. ternata Philip A. Munz 1923-9-7 7743 Orange Santiago Peak. 1524 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
  RSA72  Koeleria macrantha J. T. Howell 1928-3-17 879 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SEINET4559544  Koelreuteria bipinnata T. B. Salvato, Katie Kurtz, Mitch Provance 2006-1 1903 Orange South Coast; Irvine, San Diego Creek Flood control channel between Campus Drive and Michelson Drive 6 Comment
  RSA696161  Lactuca scariola Keith E. Hoffmaster 1927-10 s.n. Orange Santa Ana Comment
  RSA234473  Lactuca serriola James Henrickson 1970-7-25 5065 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March. 0 Comment
  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
  RSA5937  Lactuca serriola C. B. Wolf 1932-7-7 3839 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
  UC303536  Laennecia coulteri I. M. Johnston 1918-9-3 2148 Orange ground about lakes Laguna Canyon; Upper Sonoran Zone, San Joachin Hills, Laguna Canyon 106 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
  RSA761938  Lagophylla ramosissima subsp. ramosissima Robt Allen, Linnell Allen, Charles Allen 2005-10-9 12530 Orange Los Pinos Potrero, opposite entrance to Falcon Group Camp. 1011 Comment
  RSA0127415  Lamarckia aurea Fred M. Roberts 2016-3-17 8010 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  UCR154272  Lamarckia aurea Mark A. Elvin 2004-5-2 3427 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA184155  Lamium amplexicaule I. L. Wiggins 1966-2-12 20440 Orange Orange grove on W side of State College Blvd. opposite Electra Way, Fullerton. Comment
  RSA0040039  Lantana camara Anonymous 1933-10-13 s.n. Orange Santa Ana. Comment
  UCSB52935  Lastarriaea coriacea Roberts, Fred 1984-5-1 Orange Wagon Wheel Regional Park; Wagon Wheel Canyon; 3.1km NE Median Rancho Survey Mark; 1.2km NNW BM 422 165 Comment
  POM6017  Lasthenia californica L. R. Abrams 1903-4-18 3265 Orange Trabuco arroyo, near San Juan Capistrano. Comment
  JEPS10158  Lasthenia coronaria Alice King 1908-1-1 Orange Santa Ana 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
  UCR102024  Lasthenia glabrata B. G. Pitzer 1997-3-25 3015 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  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
  SD248339  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2013-3-10 13 39 Orange City of Lake Forest, along El Toro Rd., at Destry Rd. 210 Comment
  UC135152  Lasthenia gracilis C. F. Baker 1904-1-1 4088 Orange Anaheim Comment
  RSA0010308  Lasthenia gracilis J. D. Olmsted 1959-4-23 467 Orange Hidden Ranch in Black Star Canyon, 5 miles east of Irvine Lake. Drainage area to Irvine Res[ervoir]; Mt. Range: Santa Ana Mountains. 640 Comment
  RSA405743  Lathyrus vestitus subsp. alefeldii Anstruther Davidson 1923-4-1 s.n. Orange Trabuco Canyon. Comment
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Jan 11 2016
  RSA535966  Lathyrus vestitus subsp. alefeldii Fred M. Roberts, Carol A. Roberts 1989-4-7 4265 Orange Aliso-Wood Canyons Regional Park: Upper Wood Canyon, ca. 0.5 km SW Moulton Peak. 102 Comment
  UC1595602  Lathyrus vestitus var. alefeldii Fred M. Roberts Jr. and Carol A. Roberts 1989-4-7 4265 Orange Aliso-Wood Canyon Regional Park: Upper Wood Canyon, ca 0.5 km SW Moulton Peak. 102 Comment
  UC729698  Lathyrus vestitus var. alefeldii Carl B. Wolf 1932-3-8 Orange w base Santa Ana Mts.; , Santiago Dam 304 Comment
  UCD106651  Lathyrus vestitus var. vestitus W. W. 1951-4-25 s.n. Orange Border of Riverside County, west side of Santa Anna Mts. 609 Comment
  RSA35462  Lavatera assurgentiflora subsp. assurgentiflora Emily M. Bradford 1904-3-6 s.n. Orange Ocean Park Comment
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Sep 13 2013
  RSA38452  Lavatera assurgentiflora subsp. assurgentiflora Carl B. Wolf 1944-11-29 11497 Orange Southeast of Costa Mesa Comment
  CAS-BOT-BC380860  Layia platyglossa P. C. Everett 1935-4-15 2349 Orange Atwood, 0.8 miles e. of Atwood on the south side of santa Fe R.R. 106 Comment
  UCR138401  Lemna Scott D. White, Brian Leatherman 1997-6-12 5325 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  CAS-BOT-BC534382  Lemna gibba Mr. M. F. Braolshane 1904-8-1 s.n. Orange Arch Beach Comment
  RSA715699  Lemna minuta Fred M. Roberts, Chris M. Barnhill 2005-9-27 6280 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA539348  Lemna minuta Fred M. Roberts, Gordon Marsh 1987-8-31 3589 Orange Santa Ana River: adjacent to Santa Ana. 15 Comment
  RSA678524  Lepechinia cardiophylla Fred M. Roberts, D. E. Bramlet 5524 Orange Santa Ana mts.: Main Divide Truck Trail, Upper Indian Cyn., 1.7km W Trabuco Pk. 1268 Comment
  UCR125978  Lepechinia cardiophylla Fred M. Roberts, D. E. Bramlet 2002-6-6 5524 Orange Santa Ana Mtns., Main Divide Truck Trail, Upper Indian Canyon, 1.7 km W Trabuco Peak 1268 Comment
  UCR203908  Lepechinia cardiophylla R. E. Riefner Jr. 2008-6-12 08- 152 Orange Santa Ana Mountains, Irvine Ranch Reerve, Fremont Canyon Conservation Eaement, west Fremont Canyon, Windy Ridge south to west fork canyon habitat 515 Comment
  CAS-BOT-BC88683  Lepidium acutidens Carl B. Wolf 1935-3-24 6296 Orange 1 mile north of Buena Par (Valley to west of west Coyote Hils). 53 Comment
  UCD115481  Lepidium densiflorum Louis C. Wheeler 1947-5-4 6476 Orange 4 1/2 miles south of Santa Ana: South Main Street extension, 0.8 miles south of Newport Avenue. Comment
  POM202604  Lepidium lasiocarpum L. M. Booth 1932-5-24 24 Orange Newport Bay Comment
  UCR14029  Lepidium latifolium J. Riley 1973-9-12 s.n. Orange N end of Huntington Beach Comment
  UCR205991  Lepidium latifolium Adrian Wolf 1997-6-6 014 Orange South Coast, Irvine, southeast of corner of MacArthur Blvd and Bison Road, 100 ft from wetland and 50 ft from Bison mudflats 38 Comment
  UCSB48030  Lepidium latifolium Roberts, Fred 1980-5-4 Orange Mission Viejo: along Santa Fe Railroad and Camino Capistrano; 1.7 km. N Crown Valley Parkway; 1.1 km. S Bench Mark 316 49 Comment
  SD27974  Lepidium nitidum Carl B. Wolf 1932-3-8 2683 Orange 1/2 mile north of Corona Del Mar, Borders of Newport Bay 7 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
  UCR191444  Lepidium nitidum A. C. Sanders, Fred M. Roberts 2008-4-8 34726 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  CSUSB545  Lepidium nitidum Oscar F. Clarke 1966-3-19 S. N. Orange Irvine Ranch, east of University of Calif. at Irvine, Newport Beach Comment
  UCR173877  Lepidium nitidum var. nitidum Scott D. White, Michael Honer 2003-3-27 8861 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  UCR60664  Lepidium nitidum var. nitidum C. B. Wolf 1932-2-15 02657 Orange Rancho Santa Ana Botanic Garden, above the Rubus beds 183 Comment
  RSA0127408  Lepidium oblongum Fred M. Roberts 2016-5-20 8060 Orange City of Irvine: San Joaquin Hills, Turtle Rock Community along Ridge Route Road, 1.0 km SE summit of French Hill and just NE intersection with Hillsborough Drive. 122 Comment
  UCSB59357  Lepidium pinnatifidum Roberts, Jr., Fred 1987-7-8 Orange Irvine; San Diego Creek near San Diego Fwy. crossing, 3.2 km. N UC Irvine campus center; UTM 3726200m N, 422500m E 5 Comment
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Nov 17 2018
  UCR193389  Lepidium strictum A. C. Sanders, T. B. Salvato 2008-5-13 35331 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
  RSA689412  Lepidium virginicum var. pubescens Scott D. White, Amanda Duchardt 2003-4-10 9005 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  IRVC24787  Lepidium virginicum var. robinsonii Karlin G. Marsh 1989-3-4 Orange Lomas Ridge, ridge between Hicks and Rattlesnake Canyons. Lomas de Santiago 210 Comment
  UCR193015  Lepidium virginicum var. robinsonii A. C. Sanders, Mitch Provance 2008-5-20 35402 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR194550  Lepidium virginicum var. robinsonii A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35322 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  UCSB48209  Lepidospartum squamatum Roberts, Jr., Fred 1981-7-8 Orange Rancho Mission Viejo; Calif. Rte. 74, 10 km. by road ENE San Juan Capistrano 101 Comment
  RSA450838  Leptochloa fusca subsp. uninervia Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel, just N of Warner St. bridge crossing, (No. C05) Comment
  IRVC27504  Leptochloa uninervia Mark A. Elvin 2004-5-2 3420 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  SDSU3242  Leptochloa uninervia D. F. Howe 1976-7-12 4907 Orange Santa Ana River, Huntington Beach. Comment
  VVC381  Leptodactylon californicum P. J. MacKay 1990-5-25 xn Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 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
  SD87568  Leptosiphon floribundus F. W. Peirson 1925-4-10 5741 Orange Silverado Canyon 609 Comment
  RSA0095146  Leptosiphon floribundus subsp. floribundus Valerie L. Soza, LeRoy Gross 1999-6-7 481 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  POM10433  Leptosiphon floribundus subsp. glaber H. M. Hall s.n. Orange Santa Rosa Mts. Comment
Read comments
Mar 3 2013
  RSA507487  Leptosiphon liniflorus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  SD28081  Leptosiphon liniflorus Carl B. Wolf 1932-5-19 3637 Orange Rancho Santa Ana Botanic Garden, west of the tennis court. 198 Comment
  RSA602109  Leptosiphon parviflorus Scott D. White 1997-5-6 5036 Orange Santa Ana Mountians, Santiago Canyon Area: Unnamed tributary to Santiago Creek flowing from the SW, directly W of Pancho Canyon. Lomas de Santiago S179. 366 Comment
  UCR195015  Lessingia filaginifolia A. C. Sanders, Fred M. Roberts 2008-8-7 35970 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  RSA739779  Leymus condensatus A. C. Sanders, Fred M. Roberts 2008-7-3 35666 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  RSA799625  Lilaea scilloides Justin M. Wood 2011-4-12 3663 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  CAS-BOT-BC130579  Lilium humboldtii B. D. Stark 1927-9-6 s.n. Orange Claymine Canyon, Santa Ana Mts. 365 Comment
  RSA649674  Lilium humboldtii subsp. ocellatum R. E. Riefner 2000-6-30 20 -594 Orange NCCP North Ranch Policy Plan Area. N Fremont Canyon at Donaldson Ranch adjacent to powerline crossing on W fork of Fremont Canyon drainage. 427 Comment
  RSA401665A  Limonium californicum F. R. Fosberg 1930-7-10 53982 Orange Anaheim Landing. [Now Seal Beach, Orange County. Los Angeles Co. on label] 1 Comment
  RSA357146  Limonium californicum var. mexicanum Robert F. Thorne 1975-4-6 45583 Orange Head of Newport Bay. Comment
  RSA401668A  Limonium californicum var. mexicanum F. W. Peirson 1924-8-24 s.n. Orange 2.5 miles from Balboa on road inland. Comment
  RSA671248  Limonium ramosissimum R. E. Riefner 2002-5-4 20 -92 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  UC1923254  Limonium sventenii R. E. Riefner Jr. 2008-2-16 8 -28 Orange City of Lake Forest (El Toro), El Toro Rd. near Raymond St., Canada de Los Alisos. 98 Comment
  RSA2111  Linanthus californicus C. B. Wolf 1931-3-6 1831 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon Road 305 Comment
  RSA33575  Linanthus californicus N. C. Cooper 1944-6-4 1358 Orange San Juan Canyon. 610 Comment
  RSA468463  Linanthus californicus Albert J. Perkins 1920-5-16 s.n. Orange Trabuco Canyon, Comment
  UCR266297  Linanthus dianthiflorus D. E. Bramlet, J. E. Harrison 2008-4-3 4155 Orange Peninsular Range; Santa Ana Mountains, South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill 224 Comment
  RSA4498  Linanthus dianthiflorus subsp. dianthiflorus C. B. Wolf 1932-3-14 2711 Orange At west side of Botanic Garden(this is the only known patch in the vicinity of the B.g.) 192 Comment
  RSA73085  Linanthus dianthiflorus subsp. dianthiflorus F. W. Peirson 1923-3-25 3369 Orange Aliso Creek, near Laguna Beach. Comment
  RSA690973  Linanthus liniflorus Scott D. White, Michael Honer 2003-5-29 9424 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
  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
  POM8811  Lithophragma affine subsp. mixtum P. A. Munz, R. D. Harwood 1920-4-24 3782 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA797821  Lithophragma affine subsp. mixtum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49810 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA749678  Lobelia dunnii var. serrata A. C. Sanders, Fred M. Roberts 2008-7-16 35837 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UCD66217  Lolium multiflorum A. A. Beetle 1942-4-19 3104 Orange Rt. 101. San Clemente. Comment
  RSA708235  Lolium perenne Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6155 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  UC729941  Lolium perenne Carl B. Wolf 1932-6-13 3728 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  UCR2522  Lolium perenne F. M. Reed 1927-9-19 5472 Orange Near Peralta Heights 91 Comment
  POM1289  Lolium temulentum P. A. Munz 1918-5-4 2202 Orange Laguna Beach Comment
  RSA1492  Lomatium dasycarpum subsp. dasycarpum E. R. Johnson 1929-4-11 1255 Orange Sierra Peak Trail. Comment
  RSA49093  Lomatium dasycarpum subsp. dasycarpum P. A. Munz 1949-5-26 13377 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA696519  Lonicera subspicata Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  UCR240075  Lonicera subspicata Dick Newell, Don Millar 2012-5-22 257 Orange Peninsular Range; Santa Ana Mtns., on Lake View Rd. under the powerlines, 0.12 mi. SW of State Spur Rd. 593 Comment
  RSA5337  Lonicera subspicata var. denudata B. D. Stark 1933-1-4 4489 Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 213 Comment
  RSA234567  Lotus corniculatus James Henrickson 1970-8-22 5300 Orange 2.5 miles NNW of Huntington Beach. 0 Comment
  RSA797909  Lotus crassifolius Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49819 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA599637  Lotus heermannii Fred M. Roberts, Paul Barrett, Gail Bastillos 1995-7-25 4966 Orange San Juan Capistrano: San Juan Creek, 1.0 km SW La Novia Street bridge. 27 Comment
  RSA788967  Lotus heermannii Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49578 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UC1543068  Lotus purshianus var. purshianus Donald G. Nelson 1935-7-5 345 Orange E. Elm St., Brea Brea Comment
  CDA25636  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-5-6 35232 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, lower Hicks Canyon, just above tollway (Highway 241) crossing on Irvine Haul Road, near debris basin. Comment
  RSA220984  Lotus salsuginosus E. W. Lathrop 1966-3-23 6103 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA396  Lotus salsuginosus J. T. Howell 1927-6-3 23 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA751257  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-7-16 35882 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 358 Comment
  UCR191238  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-4-22 34988 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
  POM250346  Lotus scoparius I. W. Clokey 1932-3-1 5329 Orange Laguna Beach. Comment
  POM276672  Lotus scoparius Lyman Benson 1932-3-26 3200 Orange Dana Point. 60 Comment
Read comments
Apr 29 2008
  RSA3183  Lotus scoparius C. B. Wolf 1932-3-8 2680 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA5274  Lotus scoparius B. D. Stark 1933-1-17 4518 Orange Dana Point. 15 Comment
  UC511104  Lotus scoparius Lyman Benson 1932-3-26 3200 Orange Dana Point 60 Comment
  RSA303527  Lotus scoparius Jim Shevock 1970-12-20 568 Orange Newport Back Bay. 11 Comment
  RSA90319  Lotus scoparius F. W. Peirson 1923-3-26 4093 Orange Canada Salada. Comment
  RSA739555  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-7-3 35668 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UCR181165  Lotus scoparius var. scoparius R. E. Riefner Jr. 2006-7-2 06- 277 Orange South Coast, Costa Mesa, St. Route 73 at 55 Freeway interchange 20 Comment
  HSC98231  Lotus strigosus S. M. Clapp 1966-4-3 5 Orange Union Oil Prop., just S of Imperial Hwy. and E of Associated Rd. 61 Comment
  RSA732077  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-3-25 34565 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA751166  Lotus strigosus D. E. Bramlet 2008-5-15 4271 Orange Upper Borrego Cyn. 152m east of the access road and 1.7km west of Santiago Cyn Road 450 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
  UC864904  Lotus strigosus Carl B. Wolf 1932-3-8 Orange 0.5 mi n Corona del Mar (borders of Newport Bay); Newport Bay 7 Comment
  UCR102008  Lotus strigosus B. G. Pitzer 1997-3-25 3030 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  UCR192497  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-3-25 34565 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR220080  Lotus strigosus Dick Newell, Don Millar 2010-3-2 007 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lakeview Rd. 0.3 mi. east of Irvine Lake dam 305 Comment
  RSA588706  Lotus strigosus Fred M. Roberts, Carol A. Roberts 1990-5-23 4644 Orange Santa Ana Mtns: West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5 km SE Los Pinos Peak. 756 Comment
  IRVC21682  Lotus strigosus var. strigosus Fred M. Roberts 1975-5-7 75 60 Orange Dana Point: 0.7km N Dana Hills High School southern coastal 91 Comment
  IRVC2221  Lotus strigosus var. strigosus A. S. Boughey 147 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  UCR203986  Lotus strigosus var. strigosus Fred M. Roberts 2008-3-12 6727 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
  RSA697981  Lotus subpinnatus Unspecified s.n. Orange Orange County park Comment
  RSA688873  Lotus unifoliolatus Fred M. Roberts 2003-5-1 5666 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
  CDA1047  Ludwigia peploides D. G. Kelch 2006-12-9 6 .561 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  CAS-BOT-BC198413  Lupinus albifrons var. albifrons Andrew S. Wheeler 2009-5-12 40305 RSA Orange Long Canyon road, between Blue Jay Campground and Convict Camp, 4 miles west of Lake Elsinore Comment
  RSA413650  Lupinus albifrons var. eminens Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  UCR240260  Lupinus bicolor D. E. Bramlet 2003-3-20 3350 Orange South Coast, Donna O'Neill Reserve; NE corner of the reserve, 150 m west of Cristianitos Rd. and 1.9 km north of the E-W access road 134 Comment
  RSA542580  Lupinus bicolor subsp. microphyllus Fred M. Roberts 1988-3-15 3849 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  UCR234148  Lupinus excubitus Dick Newell, Judy Booth 2012-5-6 248 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.2 miles NE of Maple Springs gate, Cleveland National Forest 695 Comment
  CAS-BOT-BC216671  Lupinus excubitus subsp. hallii Charles Piper Smith 1946-4-12 46153 Orange Santa Ana Canyon Comment
  CAS-BOT-BC216694  Lupinus excubitus var. excubitus Carl B. Wolf 1930-3-25 1936 Orange 1 mile W of Esperanza siding of Santa Fe RR 106 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
  RSA409  Lupinus hirsutissimus J. T. Howell 1928-2-25 847 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA413752  Lupinus latifolius subsp. parishii N. C. Cooper 1949-5-1 3949 Orange San Juan Canyon 610 Comment
  IRVC22852  Lupinus latifolius var. parishii Fred M. Roberts 1985-6-7 1884 Orange Viejo Canyon, 0.5km N Hwy. 74, 2.5km W Lower San Juan Picnic Ground. santa Ana Mountains 327 Comment
  SJSU10767  Lupinus sparsiflorus G. B. Youngberg 1956-3-27 186 Orange Irvine Park c. 8 mi E of Orange 259 Comment
  UC1129703  Lupinus sparsiflorus A. Lewis 1934-3-1 361 Orange Silverado Canyon; Cleveland National Forest, Corona Quad., Silverado Canyon Comment
  UCR223983  Lupinus sparsiflorus Dick Newell, Don Millar 2011-3-1 072 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  UCR240078  Lupinus sparsiflorus Dick Newell, Don Millar 2012-5-22 253 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hangmans Tree Rd. at Santiago Creek 350 Comment
  RSA414282  Lupinus sparsiflorus subsp. sparsiflorus M. B. Dunkle 1933-3-5 3090 Orange San Juan Canyon. Comment
  RSA701206  Lupinus succulentus Keith E. Hoffmaster 1928-3-5 s.n. Orange Santa Ana Mountains Comment
  RSA88903  Lupinus succulentus E. K. Balls 1954-3-1 18850 Orange Botanic Garden, Santa Ana Canyon Comment
  IRVC20345  Lupinus truncatus Fred M. Roberts 1983-3-10 892 Orange Dana Point Headlands: S of Scenic Drive, 0.3km W Dana Point Harbor; 0.8km S Richard Henry Dana School. Southern Coastal 60 Comment
  IRVC2356  Lupinus truncatus Jean Gilbert 1965-4-3 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  UCR193438  Lupinus truncatus A. C. Sanders, Mitch Provance 2008-5-20 35393 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  SEINET7062958  Lychnis coronaria A. G. Vestal 1947-6-12 s.n. Orange Santiago Creek Valley 0.4 mile below Silverado Canyon Fork. UTM Zone 11, 438682mE, 3733866mN. (WGS84/NAD83). 384 Comment
  IRVC27879  Lycium A. C. Sanders, Mark A. Elvin 2003-10-12 27313 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  CAS-BOT-BC233468  Lycium californicum Carl B. Wolf 1932-3-8 2686 Orange 1/2 mi. No. of Corona Del Mar, borders of Newport Bay 7 Comment
  CAS-BOT-BC334724  Madia gracilis John Thomas Howell 1927-6-26 2613 Orange Claymine Canyon, north Santa Ana Mountains 243 Comment
  UCSB47588  Madia gracilis Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon near mouth of Viejo Cyn.; below Rte. 74, 2.5 km. by road ENE San Juan Guard Station; 0.5 km. WSW Bm 1100 288 Comment
  CLARK-A1528-5622  Madia sativa John C. Roos 1960-5-30 Orange Santa Ana Mountains Comment
  CAS-BOT-BC206255  Malacothamnus fasciculatus Cecil Hart 1928-5-27 s.n. Orange Laguna Beach Comment
  POM124505  Malacothamnus fasciculatus L. R. Abrams 1918-5-26 s.n. Orange Near Laguna Beach Comment
  RSA433314  Malacothamnus fasciculatus F. R. Fosberg 1931-6-21 S- 5094 Orange Lower Santiago Canyon. 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
  RSA0039647  Malacothamnus fasciculatus T. Sargent 1959-5-17 s.n. Orange South slope of ridge on south side of Santa Ana Canyon, opposite Orange turn-off. Comment
  UC1392830  Malacothamnus fasciculatus var. fasciculatus R. F. Hoover 1968-6-10 11172 Orange Laguna Beach Comment
  RSA549991  Malacothamnus fasciculatus var. laxiflorus Scott D. White 1992-9-23 851 -a 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
  UCR240074  Malacothrix saxatilis Dick Newell 2012-9-29 301 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 2 Comment
  UCR130491  Malacothrix saxatilis var. saxatilis R. E. Riefner Jr. 2000-9-19 00- 739 Orange South Coast, Dana Point, west of Pacific Coast Hwy, vicinity of Salt Creek Park and Ritz Carlton Hotel 15 Comment
  JEPS36606  Malacothrix saxatilis var. tenuifolia Lawrence M. Booth 1932-7-27 131 Orange Newport Bay Comment
  POM201784  Malacothrix saxatilis var. tenuifolia L. M. Booth 1932-7-27 1319 Orange Corona del Mar, Newport Bay. Comment
  RSA773520  Malacothrix saxatilis var. tenuifolia Fred M. Roberts 1999-5-3 5211 Orange Lomas de Santiago: Loma Ridge, Central Limestone Canyon, west slope, 2.3 km NW Bolero Lookout and 0.5 km NE Bolero Spring 446 Comment
  CAS-BOT-BC347889  Malacothrix saxatilis var. tenuifolia Philip A. Munz 1950-8-5 15478 Orange Rancho Santa Ana Botanic Garden, on Santa Ana River 198 Comment
  RSA721106  Malacothrix saxatilis var. tenuifolia R. H. McArthur 1934-4-28 s.n. Orange Roadside W. of Santiago Dam. Comment
  RSA94955  Malacothrix saxatilis var. tenuifolia F. W. Peirson 1919-11-8 1482 Orange Aliso Creek. 0 Comment
  IRVC25416  Malephora crocea Fred M. Roberts, Wayne Ferren 1987-4-8 3355 Orange Upper Newport Back Bay, west side, North Star Beach, 0.8km N Coney Island, Newport Beach 0 Comment
  RSA702984  Malosma laurina D. E. Bramlet 2004-5-27 3594 Orange Donna O Neill Reserve. Southwest corner of the reserve, just east of the Telaga development. The site is 1.43km west of Cristianitos Rd. and 1.37km north of Pico. 183 Comment
  UCSB48098  Malva parviflora Roberts, Fred 1981-4-11 Orange Ortega Hwy: Hwy 74 5.2km E San Juan Capistrano near San Juan Creek crossing 52 Comment
  RSA0031758  Malva parviflora Robert F. Thorne 1977-11-21 50816 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA651749  Malva pseudolavatera Michael J. Graeser 1988-5-17 40 Orange Huntington Beach. Intersection of Los Patos & Lynn. Oceanside of street along fence next to Bolsa Chica Wildlife Refuge. Comment
  SEINET11972070  Marah fabacea J. F. Bright, Wyman, C. 1933-1 8097 Orange Santa Ana foothills Comment
  UCR99891  Marah macrocarpa Scott D. White 1996-12-20 4633 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA733980  Marrubium vulgare Keith E. Hoffmaster 1926-12-18 422 Orange Santa Ana. Comment
  UC1923821  Marsilea drummondii R. E. Riefner Jr. 2007-9-30 07 -415 Orange City of Yorba Linda, Santa Ana Canyon, urban runoff tributary to Santa Ana River, La Palma Ave. at Via Lomas De Yorba East. 110 Comment
  POM899  Marsilea vestita I. M. Johnston 1918-4-4 1979 Orange San Jacinto Hills [San Joaquin Hills], Lakes in Laguna Canyon 152 Comment
  RSA666090  Marsilea vestita Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5429 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker., PCR Vernal Pool 4. 226 Comment
  CAS-BOT-BC348163  Matricaria discoidea Ira L. Wiggins 1966-3-22 20553 Orange Silverado Canyon about 1/2 mi. below entrance to Cleveland National Forest Comment
  CDA23093  Matthiola incana Mark A. Elvin, D. G. Kelch 2006-12-9 5308 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  POM311206  Matthiola incana Karen Hosterman 1956-4-7 501 Orange Laguna Beach City, cliff overlooking Crescent Bay. Santa Ana Mtn range, Pacific Ocean drainage. 2 Comment
  RSA113265  Matthiola incana E. K. Balls 1955-4-4 20423 Orange Coastal Strand, west end of Newport Beach. 3 Comment
  IRVC21997  Medicago polymorpha Fred M. Roberts, G. A. Marsh 1985-3-12 1520 Orange San Clemente; bluffs above El Camino Real, c.a. 1.1km NW Ave. Pico by road; 0.2km E Bench Mark 16 (sect. 32). Southern Coastal 31 Comment
  IRVC2381  Medicago polymorpha L. Aldis 1965-3-1 s.n. Orange Costa Mesa; Senate St. Southern Coastal Comment
  IRVC2383  Medicago polymorpha C. Thompson 1965-4-10 s.n. Orange Newport Beach; Corona del Mar, Corona Highlands. Southern Coastal Comment
  RSA737483  Medicago polymorpha Fred M. Roberts 2008-3-12 6733 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCR191419  Medicago polymorpha A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34657 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
  RSA678730  Medicago polymorpha Fred M. Roberts, Laura Cohen 2000-3-24 5267 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  UCSB48053  Medicago polymorpha Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N Dana Hills High School; 1.9 km. W Marco Forster Junior High School 100 Comment
  SD260949  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-4-8 34739 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir. Ridge top. 351 Comment
  UCR191472  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-4-8 34739 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR192092  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
  UCR186422  Melaleuca elliptica Robert DeRuff 2001-4-11 526 Orange Southern Coast, Newport Beach, Newport Back Bay, Shellmaker Island 1 Comment
  SEINET10832869  Melaleuca nesophila Charlene A. Bennett 1976-7-22 Bennett 446 Orange Cultivated and native plants collected around the san clemente beach area. 3 Comment
  RSA639694  Melia azedarach Scott D. White, Pam DeVries 1998-12-10 s.n. Orange Brea; Oil field south of Tonner Canyon and north of Lambert rd. Comment
  CAS-BOT-BC281596  Melica imperfecta R. C. Wenk; et al. 2008-3-24 718 Orange Chino Hills State Park. South Ridge Rd W of San Juan Hill, going W from Equestrian Staging Area 441 Comment
  RSA403492  Melica imperfecta Thekla Mohr 3219 Orange Laguna. Comment
  RSA743516  Melica imperfecta Fred M. Roberts 2008-4-9 6883 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  CDA20831  Melilotus albus P. Akers 2006-3-25 PA 5 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River S of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  CDA23577  Melilotus albus A. Thomas, Mark A. Elvin 2006-9-23 609236 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
  IRVC2403  Melilotus albus Janet Morgan 1965-3-22 s.n. Orange San Clemente; Elmore Ranch. Southern Coastal Comment
  UC537003  Melilotus albus Lawrence M. Booth 1932-7-4 1252 Orange Newport Lagoon Comment
  IRVC2416  Melilotus indicus McGuire 1965-3-14 s.n. Orange Newport Beach; Bayside Dr. Southern Coastal Comment
  IRVC2424  Melilotus indicus Ed Hazen 1965-4-27 s.n. Orange Costa Mesa; Victoria St. and Victoria Place. Southern Coastal Comment
  IRVC2430  Melilotus indicus L. Burns 1965-3-14 s.n. Orange Newport Beach; Bayside Dr. Southern Coastal Comment
  UCR103153  Melilotus indicus Scott D. White 1997-3-26 4808 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
  UCR192468  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-3-25 34536 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 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
  POM201874  Melilotus indicus L. M. Booth 1932-5-12 1018 Orange Newport Bay. Comment
  POM348196  Melilotus indicus M. B. Dunkle 1934-6-18 3985 Orange San Juan Canyon, Southern Coastal. 305 Comment
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Oct 3 2011
  RSA708448  Melilotus indicus Mark Elvin 2004-5-2 3410 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
  RSA708735  Mentha aquatica Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6120 Orange Caspers Wilderness Park, Hot Springs Creek in San Juan Cyn., c.a. 0.36km SSW San Juan Ranger Station, at SR 74 crossing. 197 Comment
  RSA773549  Mentzelia dispersa Fred M. Roberts, Robert Allen, Pat Brennon 2008-6-9 7035 Orange Santa Ana Mts.: Modjeska Peak, north slope, 0.2 km NNE summit 1632 Comment
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Mar 23 2020
  RSA0014074  Mentzelia micrantha Fred M. Roberts 2008-5-28 7011 Orange Lomas de Santiago: Loma Ridge, south fork Rattlesnake Cyn., 2.0km above Rattlesnake Reservoir dam and 2.2km WNW Bee Peak. 230 Comment
  RSA441  Mentzelia micrantha J. T. Howell 1927-7-3 260 Orange Claymine Canyon near Sierra Peak. 305 Comment
  UCR192111  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35313 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  JEPS42917  Mesembryanthemum crystallinum L. M. Booth 1932-6-29 1224 Orange Newport Bay Comment
  UCR21112  Mesembryanthemum crystallinum S. Beckstrom-Sternberg 1980-5-25 52580 01 -6 Orange Jamboree Rd entrance to Hwy 73 South. Comment
  RSA144559  Mesembryanthemum crystallinum P. H. Raven 1957-9-28 11400 Orange Laguna Beach. Comment
  RSA302143  Mesembryanthemum crystallinum J. R. Shevock 1972-2-18 1339 Orange Bluffs, Newport back bay. 9 Comment
  RSA696449  Mesembryanthemum lineare Anonymous 1903-11-24 s.n. Orange [Unspecified] Comment
  CAS-BOT-BC435277  Mesembryanthemum nodiflorum LeRoy Abrams 1903-4-20 3280 Orange Near San Juan Comment
  CHSC46067  Mesembryanthemum nodiflorum Sean P. Gallagher 1988-4-2 6 Orange W end of Bolsa Chica Channel. 0 Comment
  RSA752848  Mesembryanthemum nodiflorum Fred M. Roberts 2009-4-21 7156 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  UCR237912  Mesembryanthemum nodiflorum Mark A. Elvin 2003-2-2 2277 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA18534  Mesembryanthemum nodiflorum C. B. Wolf 1927-7-23 663 Orange Along the coast just north of San Clemente. Comment
  SEINET6184305 Image available Metasequoia glyptostroboides J. E. Canright 1973-6-28 s.n. Orange Behind Research Laboratory 3, Chevron Oil Company, La Habra Comment
  IRVC20789  Microseris douglasii subsp. douglasii Fred M. Roberts, S. L. Fritzke 1982-4-3 472 Orange Dana Point: hills .0 km N Dana Hills HS, 1.9 km W Marco Forester Jr HS. Southern Coastal 100 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
  RSA608535  Microseris douglasii subsp. platycarpha D. E. Bramlet 1993-3-27 2297 Orange University of California, Irvine Campus, adjacent to the UCI Ecological Reserve. The site is 150 ft. SW of the end of Los Trancos Dr. & 250 ft. E of the reserve entrance. 61 Comment
  RSA649067  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2973 Orange Fremont Canyon. The site is 335 m south of the existing access road on the north ridge of the canyon. The site is 1.21km northeast of Santiago Creek. 335 Comment
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Feb 21 2007
  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
  UCR107841  Microseris heterocarpa Scott D. White 1998-3-18 6213 Orange UCI, site of proposed research park, c. halfway between Berkeley Ave. and new freeway. 37 Comment
  RSA68354  Microseris lindleyi G. R. Campbell 1951-5-30 16102 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest. 152 Comment
  UCR191019  Microseris lindleyi A. C. Sanders, Fred M. Roberts 2008-4-22 35020 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UC943889  Mimulus H. E. McMinn, M. Van Rensselaer 1945-6-9 1910 CD Orange ca. 5 mi e Laguna Beach (on Laguna Canyon Highway) 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
  RSA55153  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1067 Orange 2.4 mi. N and W of Hwy 1 along Hwy 133 ( Laguna Canyon Rd.) 52 Comment
  RSA82104  Mimulus aurantiacus var. pubescens F. W. Peirson 1924-5-31 4660 Orange Laguna Canyon, near Laguna Beach. 61 Comment
  UCSB48103  Mimulus aurantiacus var. pubescens Roberts, Fred; Fritzke, Sue 1982-4-3 Orange Santa Ana Mnts; Lower Hot Springs Canyon; Lazy W Road; 2.4km N by road of San Juan Guard Station; 1.4km NNW Juan Rancho Survey Mark 240 Comment
  POM256713  Mimulus aurantiacus var. pubescens W. Pequegnat 1940-6-14 s.n. Orange Trabuca Pk. 1220 Comment
  RSA33814  Mimulus aurantiacus var. puniceus N. C. Cooper 1944-6-4 1341 Orange San Juan Canyon. 305 Comment
  RSA442701  Mimulus aurantiacus var. puniceus T. W. Minthorn 1913-4-26 s.n. Orange Santiago Creek. Comment
  UCSB69276  Mimulus floribundus Sanders, A.; Salvato, T. 2008-5-13 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; in Hangman Tree and in open sand along Santiago Cr. wash 366 Comment
  RSA0036645  Mimulus floribundus Robt. Allen, Richard Newell 2009-7-11 s.n. Orange Peninsular Ranges; Santa Ana Mountains regions: Upper Santiago Canyon, just past community of Modjeska Canyon, Fleming Ranch, East end of Modjeska Canyon Road. 621 Comment
  JEPS10489  Mimulus guttatus Alice King April 1908 Orange Santiago Creek Comment
  RSA769078  Mimulus guttatus L. C. Hull 1934-3-7 s.n. Orange Laguna Hills Comment
  UCR109743  Mimulus guttatus T. W. Fisher, R. E. Orth 1964-7-1 s.n. Orange Peninsular Range; Santa Ana Mtns., San Juan Creek off the Ortega Hwy 500 Comment
  UCR16027  Mimulus guttatus Steve Kulju 1974-5-27 s.n. Orange Peninsular Range; Santa Ana Mtns, San Juan Canyon, 16 mi SW of Lake Elsinore on State Hwy 74 488 Comment
  IRVC25444  Minuartia douglasii var. douglasii Fred M. Roberts 1987-5-9 3432 Orange San Juan Trail above Chiquito Basin, 2.3km SSE Los Pinos Peak, Santa Ana Mountains 952 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
  JEPS61334  Mirabilis laevis var. crassifolia L. M. Booth 1932-5-12 1035 Orange Newport Bay Comment
  POM6381  Mirabilis laevis var. crassifolia P. A. Munz, L. T. Street, G. Williams 1919-5-3 2672 Orange Santa Ana River Canyon. Comment
  UC1136598  Mirabilis laevis var. crassifolia H. E. Norton 1931-3-28 49 Orange 3 miles SW of Corona 457 Comment
  UC537290  Monanthochloe littoralis Lawrence M. Booth 1932-5-12 1046 Orange Newport Bay Comment
  SEINET11692038  Monanthochloe littoralis S. B. Parish, Parish, W. F. 1882-1 1603 Orange Newport Bay Comment
  SEINET892767  Monardella breweri subsp. lanceolata P. C. Everett 1935-1 7238 Orange Santa Ana Mts., Trabuco Canyon, 1 3/4 mi. below summit of truck trail 975 Comment
  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
  IRVC24949  Monardella hypoleuca subsp. hypoleuca Fred M. Roberts, Gordon A. Marsh 1986-6-6 2939 Orange Black Star Canyon, Black Star Canyon Rd., 6.6km SSW Sierra Peak. Santa Ana Mountains 460 Comment
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Aug 13 2012
  RSA0013358  Monardella hypoleuca subsp. intermedia A. C. Sanders, Fred M. Roberts 2008-7-3 35683 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UCR158808  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31607 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 820 Comment
  UCR238209  Monardella linoides Mark A. Elvin 2002-7-13 s.n. Orange Southern Coast, Irvine; UCI Arboretum 15 Comment
  IRVC26422  Moraea bipartita Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3157 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR24029  Muhlenbergia asperifolia John C. Roos 1936-10-9 2508 Orange Olive. On the canal bank Comment
  CAS-BOT-BC275290  Muhlenbergia microsperma Carl B. Wolf 1932-3-8 2689 Orange 0.5 mile N of Corona Del Mar, borders of Newport Bay 7 Comment
  CAS-BOT-BC275293  Muhlenbergia microsperma LeRoy Abrams 1903-4-18 3260 Orange Trabuco arroyo near Capistrano Comment
  POM265765  Muhlenbergia microsperma J. C. Roos 2081 Orange East of San Juan Capistrano Comment
  RSA542545  Muhlenbergia microsperma Fred M. Roberts 1988-2-18 3802 Orange Lomas de Santiago: Ridge west of Irvine Lake, 1.0 km NW Santiago Dam spillway 244 Comment
  RSA542548  Muhlenbergia microsperma Fred M. Roberts 1988-2-26 3809 Orange Dana Point above Dana Point marina, south of Santa Clara Ave., 0.6 km NE Marine Institute 27 Comment
  RSA704079  Muhlenbergia microsperma D. E. Bramlet, Fred M. Roberts 2003-5-1 3431 a Orange Donna O'Neill Reserve. The site is located 61m west of Cristianitos Rd. and 396m north of the E-W Road. 121 Comment
  SEINET3402284  Muilla maritima L. Abrams 1903-4-18 3263 Orange Capistrano Comment
  UCR112109  Myoporum laetum A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23335 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 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
  RSA0126617  Myoporum rapense Fred M. Roberts 2012-4-24 7496 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
  UCR51539  Myosotis R. Ascanio 1988-5-25 s.n. Orange Hwy 74 c. 5 mi east of San Juan Capistrano Comment
  UCR157698  Nama stenocarpa Adrian Wolf 1998-7-1 414 Orange South Coast, Peters Canyon Channel, east of channel between Alton and Barranca, west of Harvard 12 Comment
  RSA6660  Nassella cernua B. D. Stark 1933-5-2 4546 Orange Rancho Santa Ana. 457 Comment
  RSA450846  Nassella lepida Fred M. Roberts 1983-3-10 886 Orange Dana Point headlands, S of Scenic Dr, 0.3km W Dana Point Harbor, 0.8km S Richard Henry Dana School. 45 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
  RSA747596  Nassella pulchra Fred M. Roberts 2000-5-19 5329 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  UCD87646  Nassella pulchra R. M. L. 1942-4-16 10 Orange 8 miles east of Santa Ana. Comment
  UCSB48062  Nassella pulchra Fritzke, Sue; Roberts, Fred 1982-4-2 Orange Laguna Niguel; 3.5 km ESE of Aliso Peak; 3.2 km SSE of Alicia Fire Station 100 Comment
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Feb 5 2015
  RSA647951  Nasturtium officinale Ken Greby 1985-4-18 10 Orange N side of Laguna Canyon Rd., 1 km NE of El Toro Rd. 53 Comment
  RSA734670  Nasturtium officinale A. C. Sanders, T. B. Salvato 2008-5-13 35375 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA603289  Navarretia hamata subsp. leptantha R. E. Riefner 1997-7-18 97 -240 Orange Near Fullerton Nature Park. Comment
  CAS-BOT-BC109089  Nemacaulis denudata var. denudata E. K. Balls; P. C. Everett 1955-9-7 21431 Orange On Highway 101, mouth of Santa Ana River. 3 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
  CAS-BOT-BC478170  Nephrolepis cordifolia R. E. Jr. Riefner 2014-6-14 14 -171 Orange City of Newport Beach, Cliff Drive Park, along Cliff Drive, near Beacon Street 44 Comment
  IRVC152  Nephrolepis cordifolia Ed Hazen 1965-4-1 HS 537 Orange Trabuco Canyon Santa Ana Mountains Comment
  RSA0060642  Nephrolepis cordifolia Richard E. Riefner 2011-8-25 11 -120 Orange City of Laguna Beach, Aliso Beach County Park, bluff ca. 0.15 mi. SE of Aliso Way, NW ca. 0.25 mi. of West St. 10 Comment
  IRVC155  Nephrolepis exaltata var. bostoniensis Lance McCabe 1965-5-4 HS 536 Orange Corona del Mar. Southern Coastal Comment
  IRVC157  Nephrolepis exaltata var. bostoniensis Randy Acevedo 1965-5-5 HS 533 Orange Newport Beach; East Bluff. Southern Coastal Comment
  UCR247906  Nerium oleander Fred M. Roberts 2013-6-12 7787 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
  RSA733727  Nicotiana bigelovii Betty Niedergall 1932-5-3 s.n. Orange Hills of Orange County Park Comment
  OBI8040  Nicotiana glauca Kurt R. Neisess 1975-12-20 s.n. Orange Fullerton Hills area Comment
  RSA718957  Nicotiana glauca Fred M. Roberts, Robert L. Allen 2006-10-8 6423 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
  UCR217290  Nicotiana glauca Mark A. Elvin 2003-3-30 2394 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA4802  Nitrophila occidentalis James Snow s.n. Orange Bryant Ranch, near Long Beach. Station #1. Plant #3. Comment
  POM20633  Nolina cismontana Philip A. Munz 1923-9-6 7728 Orange Madjeska s Ranch 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
  SD122648  Nolina cismontana James C. Dice 1986-5-31 653 Orange Mission Viejo, 1.2 kilometer northwest of Lake Mission Viejo, along southwest edge of Vista del Lago just west of intersection with Canaveras Comment
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Mar 19 2009
  UCR152711  Nolina cismontana James C. Dice 1985-5-23 593 Orange Santa Ana Mtns, Upper Borrego Canyon along Santiago Canyon Rd., 1.8 km south of Modjeska Canyon Rd 440 Comment
  RSA698083  Nolina parryi Minor Warne 1934-5-19 s.n. Orange Live oak Canyon. Comment
  RSA734216  Nolina parryi Keith E. Hoffmaster 1936-5-3 726 Orange Live Oak Canyon, Santa Ana Mts Comment
  RSA649937  Oenothera bistorta R. Soper 1971-3-19 24 Orange Upper Newport Bay. Along bayside Drive 1.3 mi. from S. jct with Jamboree Rd. el. ca. 4' 1 Comment
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Sep 15 2011
  RSA733638  Oenothera dentata Minor Warne 1934-03 s.n. Orange Near El Toro Comment
  POM259318  Oenothera elata subsp. hookeri P. A. Munz 1938-6-23 15569 Orange San Juan Creek, 1 mile below Capistrano. Comment
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Jun 2 2009
  VVC1115  Oenothera laciniata A. C. Sanders, J. Mac 1998-10-17 22268 Orange Coastal flats, Bolsa Chica, near Bolsa Bay, south of Warner Ave., E of the Pacific Coast Highway .3 Comment
  CDA6652  Oldenlandia corymbosa W. Humphrey 1973-7-19 Orange 7231 Irvine Boulevard, Santa Ana. 0 Comment
  CAS-BOT-BC427455  Oligomeris linifolia H. L. Mason 1926-4-25 2905 Orange Five miles south of Laguna Beach Comment
  CAS-BOT-BC56807  Opuntia John Thomas Howell 1927-6-22 2573 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  POM279574B  Opuntia X occidentalis Lyman Benson 1950-4-29 14340 Orange South end of San Clemente. Hill 1/2 mile from ocean. 152 Comment
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Oct 21 2009
  POM317734  Opuntia X occidentalis David Walkington 1963-5-17 167 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  RSA727266  Opuntia dejecta R. E. Riefner 2006-7-23 06 -312 Orange South Coast: Newport Beach (city), north shore of Upper Newport Bay, west c. 0.25 mi. from intersection of Bayview Way and Bayview Place 11 Comment
  POM317735  Opuntia littoralis David Walkington 1963-5-23 175 Orange West side of N Euclid Ave. north of Sunny Hills West Home, Fullerton. 76 Comment
  UCR41053  Opuntia littoralis M. G. McLeod, D. L. Walkington, D. J. Pinkava, G. B. Smith 1971-5-9 445 Orange El Modena along ridge road Comment
  CAS-BOT-BC56866  Opuntia oricola B. D. Stark 1933-1-21 4520 Orange Field redacted by CAS, contact the data manager for more information 60 Comment
  SEINET6752378 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
  RSA708238  Orobanche fasciculata Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6233 Orange Southwest arm of Modjeska Peak, 1.2km SW summit, Main Divide Rd. near jct. of road to summit. 1533 Comment
  CAS-BOT-BC500129  Orobanche fasciculata Le Roy Abrams 1901-6-15 1847 Orange Santiago Peak Comment
  CLARK-A1528-4285  Orthocarpus purpurascens John C. Roos 1965-6-16 Orange Dana Point Comment
  POM286416  Orthocarpus purpurascens Lyman D. Benson 1932-3-26 3191 Orange Dana Point. 61 Comment
  CAS-BOT-BC355769  Osmadenia tenella A. C. Sanders; Fred M. Roberts; Amber O'Neal 2008-5-9 35323 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  CAS-BOT-BC355776  Osmadenia tenella Agnes M. Bowman 1899-6-1 s.n. Orange Santiago Cr. Comment
  CAS-BOT-BC355781  Osmadenia tenella D. L. Crawford 1916-5-10 s.n. Orange Laguna Beach Region. Laguna Mts Comment
  IRVC24743  Osmadenia tenella Fred M. Roberts 1986-4-29 2823 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  RSA97393  Osmorhiza brachypoda F. W. Peirson 1923-5-6 3502 Orange From Trabuco Canyon to Santiago Peak 1646 Comment
  SEINET10801634  Osteospermum ecklonis Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-7-21 Bennett 433 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  RSA782192  Osteospermum fruticosum Mark A. Elvin 2003-2-23 2315 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA722453  Oxalis californica Unspecified s.n. Orange Orange County park. 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
  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
  POM311903  Paeonia californica S. Ellis 1955-3-19 230 Orange S of Carbon Canyon, Flying Cow Ranch, San Jose Hills,. 259 Comment
  UC718282  Paeonia californica Carl B. Wolf 1936-6-17 7949 Orange along Ortega Hwy 0.6 mi below San Juan Hot Springs; Santa Ana Mts. 182 Comment
  RSA773552  Panicum capillare Fred M. Roberts 2008-6-3 7032 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.6 km NE Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 225 Comment
  RSA800228  Panicum dichotomiflorum Justin M. Wood 2010-9-29 2755 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
  POM412  Papaver californicum Crocker 1916-3-28 s.n. Orange Santa Ana Mts. Comment
  IRVC22980  Parkinsonia aculeata Karlin G. Marsh 1986-9-12 s.n. Orange Yorba Linda; Santa Ana Canyon, Santa Ana River, north side, Featherly Park south of Esperanza Rd. Santa Ana Mountains 105 Comment
  CAS-BOT-BC259630  Paspalum dilatatum Ira L. Wiggins 1965-9-26 20258 Orange Along railway right of way on N outskirts of Yorba Linda, beside Imperial Highway near Casa Loma Avenue Comment
  RSA0028024  Paspalum dilatatum Fred M. Roberts 2012-9-6 7697 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  RSA731636  Paspalum dilatatum Fred M. Roberts 2007-10-29 6619 Orange Niguel Hill: Laguna Niguel, Seaview Park, 1.3 km ENE Aliso Peak. 265 Comment
  UCR16077  Paspalum dilatatum N. J. Moriarty 1973-5-26 730526- 01 Orange South Coast, Huntington Beach, vacant lot at the corner of Beach Blvd. and Memphis Avenue 15 Comment
  IRVC29791  Paspalum dilatatum Mark A. Elvin, Dean Kelch 2006-12-9 5317 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA61  Paspalum distichum A. M. Johnson 1927-6-30 241 Orange Bryant Ranch near Long Beach 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
  UC2061664  Paspalum pubiflorum R. E. Riefner Jr. 2007-9-30 07 -419 Orange City of Yorba Linda, Santa Ana Canyon, N bank of Santa Ana River, vicinity of La Palma Ave. and Via Loma De Yorba East. Comment
  OBI74742  Paspalum vaginatum R. E. Riefner, Jr and K. Campbell, K. Campbell 2008-8-31 08 -267 Orange City of Irvine, tidal portion of San Diego crk, immediately E of Hwy 73 overpass 1 Comment
  RSA733139  Paspalum vaginatum R. E. Riefner 2007-10-17 7 -437 Orange City of Dana Point, Dana Point Harbor, Dana Point Harbor Dr. near Park Lantern Dr. 4 Comment
  RSA733141  Paspalum vaginatum R. E. Riefner 2007-10-17 7 -437 Orange City of Dana Point, Doheny State Beach, E side of San Juan Creek Lagoon. 4 Comment
  UCD169410  Paspalum vaginatum R. E. Riefner Jr. 2012-10-21 12- 523 Orange City of Newport Beach, south of Poppy Street/Ocean Blvd, creek at base of stairs, Little Corona Beach. 7 Comment
  IRVC19345  Pectocarya linearis subsp. ferocula R. L. Allen 1975-3-1 Orange Dana Hills High School Canyon, 14m NW of south entrance, 12m W of culvert. Dana Point Comment
  RSA2083  Pectocarya linearis subsp. ferocula C. B. Wolf 1931-3-6 1846 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA588784  Pectocarya linearis subsp. ferocula Fred M. Roberts, D. Bontrager 1990-4-18 4578 Orange Rancho Mission Viejo: Chiquita Rdge, west of Canada Chiquita, 2.0 km N Median Rancho Survey Marker 152 Comment
  HSC3754  Pectocarya penicillata J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  RSA790703  Pedicularis densiflora L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. 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
  IRVC28858  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange UCI Arboretum Southern Coastal 15 Comment
  CAS-BOT-BC71392  Pellaea mucronata Geo. L. Moxley 1927-5-1 s.n. Orange La Crescenta Comment
  UC1543033  Pellaea mucronata var. mucronata Donald G. Nelson 1935-4-6 241 Orange e of San Juan Capistrano (and just s of boundary of Cleveland Nat'l Forest, canyon with stream branching n from summer ranger station on main hwy); San Juan Canyon Comment
  CDA2157  Pennisetum clandestinum Margaret Bellue, Johnson Oct 1944 Orange Yorba Linda. 0 Comment
  CDA2269  Pennisetum clandestinum D. G. Kelch 2006-12-9 6 .566 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  SD88165  Pennisetum setaceum Reid Moran 1972-5-21 19135 Orange Roadside 2 miles north of San Clemente 99 Comment
  UCR247555  Pennisetum villosum R. E. Riefner Jr. 2013-2-11 13- 41 Orange South Coast, Laguna Beach, vicinity of Pacific Coast Hwy and Montage Resort Drive 30 Comment
  RSA401835  Penstemon spectabilis Christopher Davidson 1977-5-18 5604 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  UCSB52393  Penstemon spectabilis Roberts, Fred 1982-7-20 Orange Santa Ana Mtns.: 1.8 km by road NE Falcon Group Camp; 2.9 km E Los Pinos Peak 1082 Comment
  RSA580937  Pentachaeta aurea subsp. allenii D. E. Bramlet 1994-4-1 2367 Orange San Joaquin Hills, Camarillo Canyon area, some 427m W of Laguna Canyon Rd. and 671m N of Camarillo canyon 140 Comment
  RSA687368  Pentagramma triangularis subsp. triangularis Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  LA210786  Pentagramma triangularis subsp. viscosa Lawrence L. Kiefer; 1963-11-17 1099 Orange Laguna Canyon, Laguna Beach, near road to Irvine, just back of the city. 60 Comment
  LA204536  Peritoma arborea A. M. Johnson; 1927-12-30 sn Orange Laguna Comment
  SBBG70200  Peritoma arborea M. N. Ackley -Feb-1927 84 Orange Newport Beach 5 Comment
  UCD116247  Peritoma arborea E. Frost 1996-5-11 11 Orange Newport Back Bay, 50 yards in along bike path. 7 Comment
  CAS-BOT-BC77511  Peritoma arborea var. arborea R. D. Goeden; D. W. Ricker 1965-6-21 s.n. Orange Dana Point 60 Comment
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Feb 22 2019
  RSA689  Petunia parviflora J. T. Howell 1927-7-18 426 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA16333  Phacelia brachyloba Percy C. Everett 1935-6-18 720 Orange Santa Ana Mts, Main Divide Motorway 1.4 miles N of Los Pinos Potrero 1098 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
  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
  UCR192068  Phacelia cicutaria var. hispida A. C. Sanders, Fred M. Roberts 2008-5-6 35244 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR209379  Phacelia cicutaria var. hispida Fred M. Roberts, Linda Farley 2008-3-28 6820 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  RSA738988  Phacelia ciliata Pomeroy 1929-3-16 s.n. Orange Peter s Canyon Comment
  POM8712  Phacelia distans P. A. Munz, R. D. Harwood 1920-4-17 3805 Orange Laguna Canyon 76 Comment
  RSA606  Phacelia distans J. T. Howell 1928-3-18 892 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  RSA732234  Phacelia distans A. C. Sanders, Fred M. Roberts 2008-4-22 35040 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  UCR224037  Phacelia distans Justin M. Wood 2010-3-31 1445 Orange Santa Ana Canyon, Santa Ana River floodplain, 0.25 mi north of Coal Canyon wildlife corridor, west of Green River Golf Course on bluff south of the river 122 Comment
  UCR250853  Phacelia distans Dick Newell, Don Millar 2014-4-15 362 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Agua Chinon wash at the lower gate next to the 241 toll road 328 Comment
  UCR281548  Phacelia distans Mitch Provance, Jeremiah George 2017-3-20 317- 122 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
  UCR191235  Phacelia hubbyi A. C. Sanders, Fred M. Roberts 2008-4-22 34985 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  RSA697776  Phacelia imbricata subsp. patula Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA17169  Phacelia minor Percy C. Everett 1935-4-22 6464 Orange Along Santa Fe Rail Road above the pear orchard, Rancho Santa Ana, Santa Ana Canyon. 107 Comment
  RSA697793  Phacelia parryi R. H. McArthur 1934-3-17 s.n. Orange Gypsum Canyon. Comment
  RSA734011  Phacelia parryi A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34620 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  RSA678724  Phacelia ramosissima var. austrolitoralis Fred M. Roberts, Robert Allen, Carol Roberts 2003-5-11 5855 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  RSA759151  Phacelia suaveolens subsp. keckii Robt. Allen, Lori Whalen 2008-7-5 s.n. Orange Along Harding Canyon Truck Trail, on the ridgeline south of upper Harding Canyon. 1.55 air miles SW of Maple Springs Saddle - Harding Canyon USFS gate, 0.71 air miles due W of BM 5015 on Main Divide Road, W arm of Modjeska Peak., Survey point no. 38 1298 Comment
  IRVC27530  Phalaris canariensis Mark A. Elvin 2004-5-2 3422 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UCR152757  Phalaris lemmonii D. E. Bramlet 2003-6-8 3461 Orange South Coast, Fairview Park in Costa Mesa, 152 m west of Canyon School and 396 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  CAS-BOT-BC250614  Phalaris minor Carl B. Wolf 1932-5-18 3636 Orange Rancho Santa Ana Botanic Garden, near East porch of administration bldg. 198 Comment
  IRVC16190  Phalaris minor Gordon A. Marsh, Karlin G. Marsh 1978-5-20 s.n. Orange Santa Ana Mtns: Coal Canyon, NE portion of ridge. Peninsular Ranges 311 Comment
  IRVC1780  Phalaris minor J. B. Anderson 1966-4-18 597 Orange Irvine; MacArthur Blvd. near Red Hill Road. Southern Coastal Comment
  IRVC1782  Phalaris minor J. B. Anderson 1966-4-22 603 Orange San Joaquin Hills: Los Trancos Canyon, along dirt road and near spring. Santa Ana Mountains 122 Comment
  UCR102004  Phalaris minor B. G. Pitzer 1997-3-25 3038 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  UCR170307  Phalaris minor J. B. Anderson 1966-4-18 597 Orange South Coast, MacArthur Blvd. near Red Hill Road [between Santa Ana and Irvine, NE of John Wayne Airport] 9 Comment
  UCSB47955  Phalaris minor Roberts, Dar 1980-5-4 Orange Camino Capistrano Rd. below bridge (Crown Valley Pkwy.) 30 Comment
  UCSB48094  Phalaris minor Roberts, Fred 1981-4-11 Orange Highway 74: 5.2 km. E San Juan Capistrano, near San Juan Creek crossing 52 Comment
  RSA708439  Phalaris minor Mark Elvin 2004-5-2 3422 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  UCR133164  Phlox gracilis Adrian Wolf 2000-4-7 452 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Fremont Canyon, 3 km NNE of canyon mouth 408 Comment
  RSA615547  Phoenix canariensis Fred M. Roberts 1997-10-22 5051 Orange Bolsa Chica saltmarsh: north of Garden Grove East Wintersburg Channel, 0.6 km S Chica Survey Marker. 0 Comment
  UCR218373  Phoenix dactylifera Robert DeRuff 2008-1 570 Orange South Coast, Upper Newport Bay, between Mariner's Drive and North Star Beach 6 Comment
  POM3742  Pholistoma auritum D. L. Crawford 1916-07 s.n. Orange Laguna Beach region. Comment
  POM8746  Pholistoma auritum P. A. Munz, R. D. Harwood 1920-4-25 3725 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  RSA459265  Pholistoma auritum M. B. Dunkle 1935-3-3 4347 Orange San Juan Canyon. 457 Comment
  RSA75799  Pholistoma auritum F. W. Peirson 1923-3-25 4481 Orange Aliso Creek, near Laguna Beach. Comment
  CAS-BOT-BC222602  Pholistoma auritum var. auritum John Thomas Howell 1927-6-17 s.n. Orange Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC141054  Phoradendron serotinum subsp. macrophyllum Ira L. Wiggins 1966-3-25 20471 Orange Firestone Boy Scount Reservation, eash of Brea Comment
  RSA683935  Phyllospadix scouleri E. Yale Dawson 1957-2-24 16174 Orange Just nOrth of Dana Point, Orange County Comment
  RSA684036  Phyllospadix torreyi E. Yale Dawson 1958-11-10 19789 Orange First rocky spit N of Dana Point. Station no 22. 270-300 ft from shore base point. Comment
  UCR90501  Phyllospadix torreyi F. M. Reed 1933-6-11 7858 Orange South Coast, Reef at San Juan Capistrano Comment
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May 1 2011
  POM1013  Phyllospadix torreyi Daniel J. Crawford 1916-7-29 s.n. Orange Abalone Point. Comment
  RSA699075  Physalis philadelphica J. Vlahos 1932-10 s.n. Orange Field by S.A. River Bed. Comment
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Apr 23 2011
  RSA703088  Picris echioides Fred M. Roberts, Art Davenport 2003-9-11 6006 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy. Cristianitos Cyn., 0.79 km N Sycamore Gate 0.23 km w of Crisianitos Road. 126 Comment
  RSA708231  Pilularia americana Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6160 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center., (Canyon Sch. on topos). 24 Comment
  UC1543146  Pilularia americana Donald G. Nelson 1935-4-15 301 Orange near Costa Mesa (on rd from Garden Grove to Costa Mesa, <rd.> converging toward main hwy. from Santa Ana) Comment
  UC545832  Pilularia americana H. H. Tracy 1935-4-10 Orange n Costa Mesa Comment
  RSA5314  Pinus attenuata B. D. Stark 1933-1-5 4501 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  RSA562814  Pinus canariensis Steve Boyd, Tim Ross 1992-5-20 7467 B Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing Lucas Canyon Trail., Upstream 1/4 mile to spur trail leading to old mining habitations in side canyon. 305 Comment
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Feb 4 2016
  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
  RSA731002  Pinus coulteri Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6504 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  UC718128  Pinus coulteri C. B. Wolf 1933-11-8 5538 Orange grove nw Trabuco Peak (Main Divide Motorway); Santa Ana Mts. 1249 Comment
  UCR174182  Pinus coulteri A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33036 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
  RSA731007  Pinus sabiniana Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6499 Orange near Black Star Cyn. Rd. Upper Fremont Cyn. near mountain divide, 0.9 km ENE Horseshoe Spring and 0.1 km WSW Beek s Place. (4.1 km NW Pleasants Pk). West-facing slope on sandy, rocky soils in chaparral. 840 Comment
  CAS-BOT-BC136555  Piperia cooperi Alice Eastwood; John Thomas Howell 1937-4-24 3924 Orange Field redacted by CAS, contact the data manager for more information Comment
  RSA539344  Piperia cooperi Fred M. Roberts, Gordon Marsh 1987-5-14 3449 Orange Santa Ana Mountains: Upper Trabuco Canyon, Trabuco Canyon Trail, 2 kilometers NNW Los Pinos Peak. 856 Comment
  JEPS103669  Piperia elongata Robert L. Allen with Christopher M. Barnhill 2004-1-10 12269 Orange Santa Ana Mountains, Trabuco Trail, ca 0.7 trail miles (1127m) NW of Los Pinos Saddle, middle of top half of first switchback. 1178 Comment
  RSA599183  Piptatherum miliaceum Scott D. White 1997-3-28 4826 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  UCSB22859  Piptatherum miliaceum Booth, Lawrence 1932-6-7 Orange Balboa Island, Newport Bay Comment
  RSA226741  Piptatherum miliaceum I. L. Wiggins 1965-9-26 20256 Orange Along N margin of La Vida Property, above the hot srings Comment
  RSA775557  Pistia stratiotes Arthur Howe 1982-2-27 s.n. Orange Huntington Beach Central Park. Comment
  RSA716096  Plagiobothrys acanthocarpus Fred M. Roberts, Melissa Ervin 2001-3-21 5385 Orange San Joaquin Hills: Upper San Canyon, c..a. 2km SE French Hill, within the Shady Cyn. Development. 98 Comment
  UCR107848  Plagiobothrys acanthocarpus Scott D. White, B. Leatherman 1998-1-26 6064 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  UCR222387  Plagiobothrys collinus Mark A. Elvin 2003-1-26 2237 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 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
  POM155843  Plagiobothrys collinus var. californicus L. R. Abrams 1903-4-15 3315 a Orange Buena Park. Comment
  RSA368943  Plagiobothrys collinus var. californicus Albert J. Perkins 1914-3-9 s.n. Orange Laguna Beach Comment
  SD27970  Plagiobothrys collinus var. californicus Carl B. Wolf 1932-3-14 2710 Orange Rancho Santa Ana Botanic Garden 630 Comment
  RSA450857  Plagiobothrys collinus var. californicus Gordon Marsh 1978-3-17 s.n. Orange UC Irvine Ecological Preserve. 98 Comment
  RSA695818  Plagiobothrys collinus var. californicus R. H. McArthur 1934-3-10 s.n. Orange Tomato Springs Irvine Ranch Comment
  UCSB52465  Plagiobothrys collinus var. californicus Fritzke, Sue; Roberts, Fred 1982-4-2 Orange Laguna Niguel; hills, 3.5 km. ESE Aliso Peak; 3.2 km. ESE Alicia Fire Station, N of Del Avion 100 Comment
  IRVC14769  Plagiobothrys collinus var. fulvescens D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  RSA732238  Plagiobothrys nothofulvus A. C. Sanders, Fred M. Roberts 2008-4-22 35045 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  UCR177432  Plagiobothrys nothofulvus Scott D. White, Amanda Duchardt 2003-3-27 8858 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  POM98152  Plagiobothrys nothofulvus P. A. Munz s.n. Orange Santa Ana Mountains, Silverado Canyon 549 Comment
  RSA0054889  Plagiobothrys nothofulvus Keith E. Hoffmaster 1932-2-28 67 Orange Santa Ana Mts. Comment
  SEINET3161544  Plantago W. B. Crockatt sn Orange Capistrano Valley 76 Comment
  RSA401950B  Plantago erecta Anstruther Davidson 1910-04 2475 Orange Corona Del Mar. Comment
  SD236354  Plantago erecta R. E. Riefner 2006-4-12 06 118 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail hill, SSW of 405 freeway and Shady Canyon Road. 46 Comment
  POM260478  Plantago indica Ella Carter 1941-08 1 Orange Near fish canneries, not far from 29th str, Newport Beach. Comment
  UCR193367  Plantago lanceolata A. C. Sanders, T. B. Salvato 2008-5-13 35345 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
  RSA791465  Plantago lanceolata Keith E. Hoffmaster 1927-5-18 955 Orange Santa Ana. CP3. Comment
  RSA5949  Plantago major Carl B. Wolf 1932-7-7 3861 Orange Opposite the Bryant Ranch: on N side of Bryant Avenue, 0.5 mile east of Los Alamitos Boulevard near Los Alamitos. 8 Comment
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Apr 8 2014
  RSA791464  Plantago major Keith E. Hoffmaster 1927-5-22 955 Orange Near Santa Ana. CP3. Comment
  UC1618068  Plantago ovata Donald G. Nelson 1935-3-30 194 Orange On Tonner lease, mouth of Brea Canyon. Comment
  UCR235457  Plantago subnuda A. C. Sanders 2011-8-20 39889 Orange South Coast, city of Placentia, Tri-City Park on North Kraemer Blvd. at Golden Ave. 104 Comment
  IRVC29040  Platanus racemosa Mark A. Elvin, A. C. Sanders 2005-9-2 4500 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA355  Platanus racemosa J. T. Howell 1928-2-26 858 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA731911  Platanus racemosa Fred M. Roberts, Sandy Leatherman 2007-11-27 6668 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  UCR193772  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-7-3 35700 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
  UCR195018  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-8-7 35977 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
  UCSB48123  Platanus racemosa Roberts, Fred 1981-4-11 Orange Highway 74; 5.2km E San Juan Capistrano, near crossing of San Juan Creek 52 Comment
  JEPS51625  Platystemon californicus Alice King 1908-3-12 Orange Anaheim Plains Comment
  CDA5356  Plecostachys serpyllifolia R. E. Riefner Jr. 2006-7-26 06 -319 Orange City of Irvine, along north side of Irvine Boulevard at SR 133 on-ramp. Comment
  OBI74895  Plecostachys serpyllifolia Unknown 2009-7-18 09 -151 Orange City of Dana Point, beach near Salt Crk, vicinity of Ritz Carlton Resort 3 Comment
  OBI81438  Plecostachys serpyllifolia Unknown 2008-7-9 08 -220 Orange City of Laguna Beach, bluff area W of West St. and Pacific Coast Highway. 5 Comment
  RSA0025114  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-7-9 08 -220 Orange City of Laguna Beach, bluff area W. of West St. and Pacific Coast Highway. 5 Comment
  UCR230581  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-6-25 11- 71 Orange South Coast, city of Laguna Beach, Woods Cove, vicinity of Ocean Way at Pearl Street 9 Comment
  RSA801997  Plectritis ciliosa Keith E. Hoffmaster 1935-5-5 971 Orange San Juan Canyon., Santa Ana Mts. Comment
  POM201842  Pluchea odorata L. M. Booth 1932-7-19 1272 Orange Bolsas Marsh. 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
  UCR146415  Pluchea odorata Sandra L. Leatherman 1998-9-3 45 Orange Coastal Plains & Basins; South Coastal Plain, Dana Point: Monarch Beach, northeast of the intersection of State Highway 1 and Crown Valley Parkway, and west of Salt Creek 30 Comment
  UCR240106  Pluchea odorata Dick Newell, Judy Booth 2012-9-26 287 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 3 Comment
  RSA930  Pluchea odorata J. T. Howell 1927-9-24 751 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  UCSB36216  Pluchea odorata Ferren, Wayne; Roberts, Fred 1980-8-27 Orange Vicinity of Newport Backbay Drive ca. 1.5 km. NE of Rt. 1, Newport Beach Comment
  JEPS30711  Pluchea odorata var. odorata Peter H. Raven 1961-10-15 16855 Orange just n of U.S. Highway 91 along dyke along road to Yorba Linda 114 Comment
  RSA785323  Pluchea sericea Dick Newell, Don Millar 2010-4-27 020 Orange Lomas de Santiago, Agua Chinon wash 1/4 mile north of Hwy 241 toll road 226 Comment
  RSA542452  Plumbago auriculata Fred M. Roberts 1987-10-14 3751 Orange Laguna Beach: Lower Blue Bird Canyon at end of Catalina Street. 21 Comment
  IRVC1624  Poa annua E. McRae 1965-3-30 s.n. Orange Corna del Mar High School. Newport Beach Comment
  IRVC1789  Poa annua I. L. Wiggins 1966-2-1 20405 Orange California State College, Fullerton; orange grove just E of Letters and Science Building. Southern Coastal Comment
  RSA716658  Polycarpon tetraphyllum Fred M. Roberts 2005-5-13 6187 Orange San Juan Capistrano; Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 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
  UCR102030  Polycarpon tetraphyllum B. G. Pitzer 1997-3-25 3027 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  RSA450863  Polygala cornuta var. fishiae Gordon Marsh, K. G. Marsh 1977-11-21 s.n. Orange Along N side of Ortega Hwy, 0.6 miles W of Lower San Juan Picnic ground. Comment
  RSA649675  Polygala cornuta var. fishiae R. E. Riefner 2000-6-13 20 -494 Orange North Ranch Policy Plan Area, N Fremont Canyon S of Donaldson Ranch, upper W fork of Fremont Canyon drainage 363 Comment
  CAS-BOT-BC413753  Polygonum argyrocoleon Carl B. Wolf 1932-9-13 4038 Orange Bryant Ranch: North boundary between Flood Control dike & well in S.E.1/4 Sect. 25; about 1300 ft. W. of N.E. corner of S.E.1/4 Sect. 25 T4S R12W 6 Comment
  RSA21059  Polygonum fusiforme Ramon Valverde 1938-8-4 9445 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA195  Polygonum hydropiperoides J. T. Howell 1927-7-5 268 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 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
  RSA443825  Polygonum lapathifolium Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel, just N of Warner St. bridge crossing, (No. C05) Comment
  RSA718963  Polygonum lapathifolium Fred M. Roberts, Robert L. Allen 2006-10-8 6417 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  RSA731931  Polygonum lapathifolium Fred M. Roberts, Sandy Leatherman 2007-11-27 6679 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 Comment
  RSA731946  Polygonum lapathifolium Fred M. Roberts, Sandy Leatherman 2007-11-27 6689 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 Comment
  UC536913  Polygonum lapathifolium Lawrence M. Booth 1932-7-30 1342 Orange Santa Ana River Comment
  RSA5941  Polygonum lapathifolium Carl B. Wolf 1932-7-7 3835 Orange Bryant Ranch, along drainage ditch on Bixby Ave. 9 Comment
  RSA594872  Polygonum punctatum Fred M. Roberts, Wayne Ferren, David Bramlet 1991-11-29 4827 Orange Santa Ana Canyon: Featherly Regional Park, Santa Ana River, Horseshoe Bend, c.a. 3.8 km S San Juan Hill. 102 Comment
  IRVC22502  Polypodium californicum Fred M. Roberts 1985-5-1 1692 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  IRVC24465  Polypodium californicum Fred M. Roberts 1986-2-5 2587 Orange Santa Ana mtns: Lower Hot Springs Canyon, 1.1km NNW Juan Rancho Survey Mk Peninsular Ranges 285 Comment
  SD262146  Polypodium californicum R. E. Riefner Jr. 2017-3-31 17 137 Orange City of San Clemente, San Clemente State Beach, NW bluff area immediately S of Ave. Calafia. 24 Comment
  IRVC14816  Polypogon monspeliensis A. S. Boughey 1968-7-9 399 Orange Upper Santiago Canyon. Santa Ana Mountains Comment
  IRVC25048  Polypogon monspeliensis Fred M. Roberts 1986-8-21 3062 Orange Mission Viejo: English Canyon along English Creek just below Trabuco Road crossing, about 2.4km E El Toro Fire Station. southern coastal 166 Comment
  IRVC8402  Polypogon monspeliensis J. B. Anderson 1966-4-17 593 Orange Newport Beach: along roadside ditch in field NE of Newport Harbor High School. southern coastal Comment
  IRVC8600  Polypogon monspeliensis J. B. Anderson 1966-4-17 593 Orange Newport Beach: along roadside ditch in field NE of Newport Harbor High School. southern coastal Comment
  SEINET192612 Image available Polypogon monspeliensis C. B. Wolf 1932-6-13 13 Orange Fullerton; Malvern and Nicholas Avenues. 0 Comment
  UCR193927  Polypogon monspeliensis A. C. Sanders, Fred M. Roberts 2008-7-16 35842 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  SEINET182351 Image available Polypogon viridis Lawrence M. Booth 1932-6-7 1163 Orange Newprt Lagoon. Comment
  UCR174187  Populus balsamifera subsp. trichocarpa A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33023 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
  UCR195011  Populus balsamifera subsp. trichocarpa A. C. Sanders, Fred M. Roberts 2008-8-7 35974 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
  UCR51476  Populus balsamifera subsp. trichocarpa S. J. Myers 1987-9-9 s.n. Orange San Juan Capistrano, immediately east of San Juan Creek and 0.25 mi. north of Hwy 1, just north of existing sewage treatment plant 9 Comment
  UC1922344  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2007-6-12 07 -253 Orange City of San Juan Capistrano, Vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek. Comment
  RSA731918  Populus fremontii subsp. fremontii Fred M. Roberts, Sandra Leatherman 2007-11-27 6661 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
  RSA731957  Populus fremontii subsp. fremontii Fred M. Roberts 2007-12-12 6700 Orange Santa Ana Canyon: Santa Ana River, south of Green River Golf course on south side of river, 0.4km E Coal Cyn. Rd. and 0.7km W Riverside Co. line. 129 Comment
  RSA133  Populus trichocarpa J. T. Howell 1927-7-21 451 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA5326  Populus trichocarpa B. D. Stark 1932-12-30 4469 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA581439  Populus trichocarpa Fred M. Roberts Jr., Gordon Marsh 1989-5-12 4358 Orange Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.0 km WSW Laurel Springs. 436 Comment
  CLARK-A1528-2064  Porophyllum gracile John C. Roos 1965-6-16 Orange Dana Point Comment
  JEPS34991  Porophyllum gracile Ethel Rockwell Orange Santa Ana Mts., Trabuco Canyon Comment
  POM180684  Porophyllum gracile J. T. Howell 1929-3-2 4097 Orange Rocky hills on N side of Santa Ana Canyon. 152 Comment
  UCR26999  Porophyllum gracile E. W. Lathrop 1966-4-18 6188 Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District 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
  CAS-BOT-BC453826  Potamogeton nodosus Street; Williams 1919-5-4 2689 Orange Laguna Lakes Comment
  RSA613774  Prunus caroliniana B. Pitzer, M. Georgiady 1997-4-5 3078 Orange San Joaquin Hills Crystal Cove State Park, along No Dogs Trail (from parking area, along western bottom edge of ridge between Muddy Canyon and Moro Canyon), to just below intersection with Poles trail 152 Comment
  RSA699853  Prunus ilicifolia J. Vlahos 1934-4-22 s.n. Orange Harding Canyon Comment
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Jun 10 2012
  LA208150  Prunus ilicifolia subsp. lyonii Donald Lee Johnson; 1965-1 sn Orange San Clemente Island, Reservoir Canyon Comment
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Jan 29 2015
  UCR281519  Pseudognaphalium californicum Mitch Provance 2017-6-9 617- 94 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  UCSB47584  Pseudognaphalium californicum Roberts, Jr., Fred 1980-4-3 Orange Along Highway 74, 0.2 km. SW of Orange-Riverside Co. line, 0.4 km. NNE Lower San Juan Picnic Ground 420 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
  UCR281887  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2017-8-14 17- 404 Orange South Coast, city of San Juan Capistrano, San Juan Creek. Immediately east of Hwy I-5, north of San Juan Creek Road along San Juan Creek Trail 25 Comment
  RSA722094  Pseudognaphalium leucocephalum R. E. Riefner 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. 31 Comment
  CHSC35335  Pseudognaphalium luteoalbum James Henrickson 1972-10-21 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. 45 Comment
  UCR240071  Pseudognaphalium ramosissimum Dick Newell, Judy Booth 2012-8-12 283 Orange South Coast, Newport Beach on Back Bay Drive, 0.6 mi north of Big Canyon parking lot 3 Comment
  HSC5700  Pseudognaphalium stramineum J. W. Johnson 1961-3-29 Orange Newport Beach, near upper end of Newport Bay Comment
  UC537030  Pseudognaphalium stramineum Lawrence M. Booth 1932-7-19 1275 Orange Bolsas Marsh Comment
  SD240763  Pseudotsuga macrocarpa June Latting, F. Shropshire 1972-4-28 Orange Peninsular ranges/ Santa Ana Mountains: Silverado Canyon, 6.3 miles from Silverado Forest Station [presumably up canyon from Silverado] at S curve in road (Santiago Peak 7.5'Q) 1159 Comment
  RSA0088602  Psilotum nudum R. E. Riefner Jr. 2015-11-22 15 -453 Orange City of Costa Mesa, E side of Orange County Fairground, Lot #A-5, W of Newport Blvd. and N of Fair Drive. 32 Comment
  UC2048895  Psilotum nudum R. E. Riefner Jr. 2017-1-15 17 -36 Orange City of Newport Beach, Polaris Drive, S of Evening Star Drive, Westcliff Park, N side of Newport Bay. Comment
  RSA733702  Pteridium aquilinum Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts Comment
  SEINET7073416  Pterostegia drymarioides A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  RSA542463  Pterostegia drymarioides Fred M. Roberts 1987-3-27 3279 Orange Canada De Los Alisos: above Canada Rd., 4.5 km NNE El Toro Fire Station. 226 Comment
  CDA7614  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange Santa Ana Canyon, 0.1 mile south of Riverside Freeway to Anaheim, ca. 2 miles west of the Riverside County line. 0 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
  RSA725460  Pulicaria paludosa Fred M. Roberts 2007-8-6 6557 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  RSA750903  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-7-3 35710 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA234485  Pulicaria paludosa James Henrickson 1970-9-5 5352 Orange 3 miles NW of Huntington Beach. 1 Comment
  RSA562815  Pyrus communis Steve D. Boyd, Tim S. Ross 1992-5-20 7468 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing Lucas Canyon Trail., Upstream 1/4 mile to spur trail leading to old mining habitations in side canyon. 305 Comment
  UCD47705  Quercus X acutidens John M. Tucker 1941-5-30 256 Orange Low shrub, in San Juan Canyon, 200 yards west of San Juan Guard Station, Highway 74, Orange County, California. Comment
  UCSB52413  Quercus X acutidens Roberts, Fred 1981-11-15 Orange Santa Ana Mtns.: San Juan Canyon, Hwy 74, across road from entrance to Lower San Juan Picnic Ground 436 Comment
  CAS-BOT-BC61813  Quercus agrifolia C. B. Wolf 1931-3-6 1832 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  HSC8091  Quercus agrifolia S. M. Clapp 1966-4-8 47 Orange Modjeska Canyon 152 Comment
  IRVC16135  Quercus berberidifolia R. Meinzer, T. Mulroy 1971-4-25 s.n. Orange Santa Ana Mountains: Upper Trabuco Canyon. Peninsular Ranges Comment
  IRVC16619  Quercus berberidifolia Gordon A. Marsh, Karlin G. Marsh 1977-9-1 s.n. Orange Mission Viejo: Jeronimo Springs. Southern Coastal Comment
  RSA12734  Quercus berberidifolia E. R. Johnson 1933-11 5557 Orange Rancho Santa Ana. Comment
  RSA590959  Quercus berberidifolia Fred M. Roberts, Karlin G. Marsh 1991-4-10 4765 Orange Laguna Beach: South Laguna, Temple Hill, ridge between upper Hobo Canyon and Aliso Gorge, 1.7 km NW Niguel Hill summit. 213 Comment
  UCR144739  Quercus berberidifolia A. S. Boughey, Pat Pembrook 1965-6-8 1013 Orange Los Trancos Canyon, below the spring, San Joaquin Hills 91 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
  RSA0059077  Quercus berberidifolia CNPS Accuracy Assessment Team 2014-7-19 461 B Orange Laguna Coast Wilderness Park. Comment
  RSA0105422  Quercus berberidifolia Keith E. Hoffmaster 1930-1 406 Orange Santa Ana Mts. 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
  UCR241915  Quercus dumosa Fred M. Roberts 2012-5-10 7560 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
  RSA542389  Quercus engelmannii Richard Ericson 1991-6-11 s.n. Orange San Joaquin Hills: upper Coyote Canyon on north signal peak, ca. 0.6 km NW summit, UTM 37 19 000m N, 4 24 200m E alt. 204m 204 Comment
  SD247439  Quercus suber R. E. Riefner Jr. 2014-4-29 14 89 Orange City of Yorba Linda, Yorba Linda Regional Park along East La Palma Ave., W of Yorba Llinda Blvd; Parking Lot #7. 92 Comment
  UC1135896  Quercus wislizeni H. E. Norton 1931-3-20 42 Orange ridge between Ladd Canyon and East Fork Canyon; Corona Quad. 1036 Comment
  IRVC16134  Quercus wislizeni var. frutescens R. Meinzer, T. Mulroy 1971-4-25 s.n. Orange Santa Ana Mountains: Upper Trabuco Canyon. Peninsular Ranges Comment
  POM6371  Rafinesquia californica P. A. Munz, L. T. Street, Williams 1919-5-3 2674 Orange Santa Ana River Canyon. Comment
  RSA749300  Rafinesquia californica Fred M. Roberts 1999-4-21 5180 Orange Lomas de Santiago: Loma Ridge, ridges north of Dripping Springs Cyn., 1.5 km W Silverado Sch. and 4.8 km NNW Bolero Lookout. 365 Comment
  UCR261711  Rafinesquia californica Dick Newell, Don Millar 2015-3-24 393 Orange South Coast, San Joaquin Hills, on Willow Canyon Trail 0.2 mi. west of Laguna Coast Wilderness Park entrance off Laguna Canyon Rd. 88 Comment
  POM303771  Ranunculus californicus Lyman Benson 1947-4-27 12338 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  RSA542414  Ranunculus californicus Fred M. Roberts 1987-4-3 3347 Orange Irvine: San Joaquin Hills, Central Shadey Canyon, 2.8 kilometers NE Signal Peak. 109 Comment
  POM7623  Ranunculus hebecarpus P. A. Munz, R. D. Harwood 1920-4-25 3739 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  IRVC1135  Raphanus sativus C. Duncan 1965-4-3 Orange Newport Beach Comment
  UCR100464  Raphanus sativus B. G. Pitzer 1996-4-30 2777 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA651170  Raphanus sativus Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange 60 Comment
  CDA3881  Reseda alba Johnson 1939-4-1 Orange Los Angeles - Garden Grove. 0 Comment
  CDA3879  Reseda odorata E. Dudley 1951-4-2 Orange Costa Mesa. 0 Comment
  OBI5938  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1845 Orange W slope Santa Ana mts, Trabuco cyn, 1/2 mi above Trabuco oaks 457 Comment
  RSA1699  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1838 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA184091  Rhamnus ilicifolia I. L. Wiggins 1966-2-25 20473 Orange Firestone Boy Scout Reservation in hills E. of Brea. Comment
  RSA462  Rhamnus ilicifolia J. T. Howell 1927-6-17 152 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA788242  Rhamnus ilicifolia Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49630 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  SBBG27365  Rhamnus ilicifolia P. C. Everett 1935-6-19 Orange Trabuco Cyn, 2 mi below (SW) Forest Service Patrol Station 365 Comment
  UC1121877  Rhamnus ilicifolia A. Lewis Mar 1934 338 Orange Santa Ana Canyon Corona Quad. 152 Comment
  UCSB21805  Rhamnus ilicifolia Merrill, Roy 1965-4-11 Orange 11.5 mi. on State 74 from U.S. 101, Santa Ana Mts. 274 Comment
  POM246507  Rhamnus tomentella subsp. cuspidata Carl B. Wolf 1933-8-24 5391 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  RSA644972  Rhamnus tomentella subsp. cuspidata R. E. Riefner 2000-4-13 20 -360 Orange NCCP North Ranch Policy Plan Area. Upper drainage of Fremont Canyon near National Forest boundary, S. of Claymore Mine. USGS 7.5' Quad: Black Star Canyon. 610 Comment
  HSC25246  Rhus integrifolia R. W. Spjut 1972-2-22 2221 Orange Near S Laguna Beach along Hwy. 1 0 Comment
  IRVC15661  Rhus integrifolia A. S. Boughey, P. Pembrook 1965-7-16 1011 Orange Los Trancos Canyon, near spring, ; chaparral. San Joaquin Hills Comment
  RSA184098  Rhus integrifolia I. L. Wiggins 1966-2-25 20474 Orange Firestone Boy Scout Reservation in hills E. of Brea. Comment
  RSA451  Rhus integrifolia J. T. Howell 1927-6-16 147 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA751419  Rhus integrifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35693 Orange Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 275 Comment
  SD253896  Rhus integrifolia Jim Riley 2013-12-10 133 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  RSA0031756  Rhus integrifolia R. F. Thorne 1977-11-21 50818 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  SEINET12235089  Rhus integrifolia Unknown 1933-1 8218 Orange Back of LaGuna Beach Comment
  IRVC84  Rhus ovata A. S. Boughey 128 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  RSA184094  Rhus ovata I. L. Wiggins 1966-3-22 20551 Orange Hillside at end of pavement, Silverado Canyon, about 5 mi. above Ranger Station, Cleveland National Forest. Comment
  SEINET6669779 Image available Rhus ovata T. C. Arambula 1966-1 35 Orange Silverado Canyon Comment
  UCR234141  Rhus ovata Dick Newell, Judy Booth 2012-3-30 243 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest 258 Comment
  RSA542519  Rhus trilobata var. quinata Fred M. Roberts, G. A. Marsh 1986-8-27 3108 Orange Santa Ana Mountains: Santiago Peak, Main Divide Truck Trail, 0.1km WNW Summit. 1620 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
  UCD169740  Ribes californicum var. hesperium R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49693 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  RSA698891  Ribes hesperium Tozier, Estes 1950-1-30 s.n. Orange Silverado. Comment
  RSA2068  Ribes indecorum Carl B. Wolf 1931-3-6 1861 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  UC484197  Ribes indecorum B. D. Stark 1930-2-21 1475 Orange Black Star Creek 457 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-BC168944  Ribes malvaceum James R. Shevock 1978-4-26 5899 Orange Along the divide road, FS 3S04 in the vicinity of Sierra Peak, Santa Ana Mountains, Cleveland National Forest 1097 Comment
  PASA2256  Ribes malvaceum Frank W. Peirson 1923-5-6 Orange Santiago Peak. Holy Jim Trail near spring 1142 Comment
  CAS-BOT-BC186105  Ribes roezlii var. roezlii Carl B. Wolf 1941-8-15 11154 Orange Santa Ana Mts. Summit Santiago Peak 1706 Comment
  RSA353  Ribes speciosum J. T. Howell 1927-6-6 51 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA40800  Ribes speciosum G. R. Campbell 1949-3-4 12816 Orange Claymine Canyon, Santa Ana Mts. Comment
  RSA454954  Ribes speciosum M. B. Dunkle 1933-5-30 3568 Orange Carbon Canyon Comment
  CAS-BOT-BC207157  Ricinus communis P. A. Munz 1918-5-5 2177 Orange Laguna Comment
  UCR186138  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
  UCSB50642  Ricinus communis Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills; Carbon Canyon, Carbon Canyon Rd., 6.6 km. SW county line by road; 5.2 km. W Gilman Peak 150 Comment
  RSA722424  Romneya coulteri G. Gentges 1932-5-8 s.n. Orange Silverado Canyon Wash. Comment
  RSA722425  Romneya coulteri Minor Warne 1934-4-21 s.n. Orange Junction Santiago and Black Star Canyons. Comment
  SDSU892  Romneya coulteri D. F. Howe 1976-6-4 4904 Orange Trabuca Canyon, Santa Ana Mtns. 305 Comment
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Sep 5 2013
  UC1618114  Romneya coulteri Donald G. Nelson 1936-6-5 435 Orange Hills NE of Fullerton 91 Comment
  RSA741720  Romneya coulteri R. E. Riefner 2008-3-20 8 -106 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W fork Fremont Canyon, S Donaldson Ranch area. 380 Comment
  RSA771716  Romneya coulteri Robt. Allen, Richard S. Newell, Roger E. Reinke 2006-6-30 s.n. Orange Santa Ana Mts., Holy Jim Canyon Trail. About 1 mile up trail from forest gate. 609 Comment
  SD255234  Romneya coulteri R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49767 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CAS-BOT-BC92180  Romneya coulteri var. coulteri Helen D. Geis 1902-5-1 s.n. Orange Santa Ana River Canon [Canyon]. Comment
  RSA703026  Rorippa palustris subsp. occidentalis R. E. Riefner Jr. 2004-8-27 4 -393 Orange City of Irvine, San Diego Creek at 405 freeway. 50 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
  UCR16768  Rosa californica Dave Cerf 1971-5-2 s.n. Orange Orange Park Acres. Windes Dr. 0.5 mile SW of end of road 244 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
  IRVC26433  Rosa minutifolia Mark A. Elvin 2004-2-22 3149 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA699560  Rubus vitifolius Minor Warne 1934-03 s.n. Orange Santa Ana River Banks Comment
  UCSB48004  Rumex californicus Roberts, Fred 1980-7-11 Orange SANTA ANA MTNS.: Viejo Canyon, 3.0km ENE San Juan Guard Station; 0.7km N Hwy 74 355 Comment
  CLARK-A1528-923  Rumex crispus Patricia A. Andrews 1975-6-26 5912 Orange Capistrano Bay Beach 9 Comment
  HSC17611  Rumex crispus C. L. Hitchcock, C. V. Muhlick 1964-3-17 23072 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  RSA666107  Rumex crispus Fred M. Roberts, Michelle Lee 2001-6-18 5496 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 226 Comment
  RSA466284B  Rumex crispus M. B. Dunkle 1933-4-9 3289 Orange Dana Point. Comment
  RSA16974  Rumex hymenosepalus E. R. Johnson 1936-4-16 7768 Orange Santa Ana Canyon, Rancho Santa Ana, along the road near roundtop. 366 Comment
  POM2358  Rumex maritimus I. M. Johnston 1918-5-4 526 Orange San Joaquin Hills, Lakes in Laguna canon. 152 Comment
  RSA685938  Rumex salicifolius Fred M. Roberts 2003-3-27 5629 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  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
  UCR173934  Rumex salicifolius A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33054 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
  SEINET10830689  Rumohra adiantiformis David B. Dunn 1976-7-21 Dunn 22173 Orange Collected from a nursery off Hwy 1, in Newport. 15 Comment
  RSA512756  Rupertia physodes Walter Wisura, Bart O'Brien, M. Durant 1990-6-12 4447 Orange Along forest rd. 3SO4 fr. 2.15 miles Ortega Hwy. to Santiago Peak. Comment
  CAS-BOT-BC454145  Ruppia maritima S. B. Parish; W. F. Parish 1882-10-1 1607 Orange Newport Bay Comment
  RSA145440  Ruppia maritima Peter H. Raven 1961-10-15 16860 Orange Coast Hwy 2 miles SE of Sunset Beach 0 Comment
  SEINET5471003 Image available Ruppia maritima James Henrickson 1970-7-24 5023 Orange 3 mi. NW of Huntington Beach- Inner Bolsa Bay- froming very dense stand along margins of bay. Comment
  POM202047  Salicornia bigelovii L. M. Booth 1932-12-13 1376 Orange Newport Bay. Comment
  RSA234499  Salicornia bigelovii James Henrickson 1970-9-5 5314 Orange 3.5 miles NW of Huntington Beach, 0.25 mile SE of Warner Ave. in Lower Littoral zone of Bolsa Chica Salt Marsh along outer Bolsa Bay. 0 Comment
  UCR143513  Salicornia bigelovii David Michener 1934-8-1 s.n. Orange Southern Coast, Newport Bay, near north end of bridge connecting Balboa Island with mainland 3 Comment
  UCSB13412  Salicornia pacifica Whittington, M. 1962-4-20 Orange South side of back Newport Bay about one mile south of saltworks, Newport Comment
  JEPS73723  Salicornia subterminalis L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2046 Orange just s. Bolsa Chica State Park (Salt Marsh (s. end of Bolsa Bay)); Bolsa Bay Comment
  UC536964  Salicornia virginica Lawrence M. Booth 1932-6-9 1182 Orange Newport Bay Comment
  RSA70037  Salicornia virginica F. W. Peirson 1924-8-29 5081 Orange 2.5 miles from Balboa on road inland along creek. Comment
  CAS-BOT-BC129737  Salix bonplandiana Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  UCR140886  Salix discolor Robert DeRuff 1987-2-1 334 Orange Southern Coast, Newport Beach, along Back Bay Drive north of Big Canyon 2 Comment
  JEPS14863  Salix exigua John P. Harrington 1932-6-29 3 Orange San Juan Capistrano Comment
  POM182035  Salix exigua Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA4496  Salix exigua Carl B. Wolf 1932-3-16 2714 Orange Santa Ana River bottom, Rancho Santa Ana (between pear and walnut groves). 122 Comment
  RSA542353  Salix exigua Fred M. Roberts Jr., Gordon Marsh 1987-8-31 3602 Orange Santa Ana River: adjacent to Santa Ana, 0.5 km NE 17th St. bridge. 27 Comment
  RSA6450  Salix exigua Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA731935  Salix exigua Fred M. Roberts, Sandra Leatherman 2007-11-27 6675 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  SJSU255  Salix exigua C. B. Wolf 1932-4-15 2953 Orange S of pear orchard Rancho Santa Ana near Santa Ana R, Santa Ana Canyon 121 Comment
  UCR174214  Salix exigua A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33041 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
  UC492440  Salix exigua var. hindsiana Carl B. Wolf 1932-7-7 3843 Orange near town of Los Alamitos (Rancho Santa Ana along ditch on Bixby Ave., 1 km. w of Hansen Rd., Bryant Ranch) Comment
  CAS-BOT-BC108141  Salix gooddingii H. D. Geis 1902-1-1 533 Orange Santa Ana Comment
  RSA528052  Salix gooddingii A. C. Sanders 1990-10-6 10184 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  RSA748273  Salix gooddingii A. C. Sanders, Fred M. Roberts 2008-6-17 35515 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  SD1042  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  UCSB52450  Salix gooddingii Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach: Upper Newport Back Bay, Back Bay Dr., 3.5km N jct San Joaquin Hills Dr; 3.0km W UC Irvine campus 2 Comment
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Oct 28 2018
  CAS-BOT-BC108205  Salix hindsiana Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  RSA0038335  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-3-16 2714 Orange Rancho Santa Ana. 121 Comment
  RSA0038363  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  LA208698  Salix laevigata Carl Hedin; Joseph Ewan 1933-3-19 7684 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  RSA5369  Salix laevigata B. D. Stark 1933-1-7 4511 Orange Rancho Santa Ana, river bottom below ranch houses. 122 Comment
  RSA603345  Salix laevigata Scott D. White, B. Leatherman 1997-6-12 5323 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
  UCR193034  Salix laevigata A. C. Sanders, Mitch Provance 2008-5-20 35425 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA0030858  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  IRVC8761  Salix lasiolepis Charles W. Sexton 1965-2-12 s.n. Orange Newport Beach. Southern Coastal Comment
  JEPS13843  Salix lasiolepis Alice King Feb., 1908 Orange Santa Ana River 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
  UCSB47979  Salix lasiolepis Roberts, Fred 1980-2-17 Orange Along Camino Capstrano road, 1.0 km south of Avary Parkway, southern Mission Viejo 48 Comment
  CAS-BOT-BC128462  Salix lasiolepis var. lasiolepis Carl B. Wolf 1932-2-15 2655 Orange Rancho Santa Ana Botanic Garden, north of administration building. 182 Comment
  CAS-BOT-BC126309  Salix sessilifolia Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  CAS-BOT-BC126314  Salix sessilifolia 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
  CAS-BOT-BC176841  Salsola australis Ira L. Wiggins 1965-10-27 20306 Orange Along Brea Canyon Road just SW of Los Angeles County Line Comment
  CDA3167  Salsola australis R. E. Riefner Jr. 2007-3-18 07 -152 Orange City of Newport Beach. North shore of Newport Bay, Dover Beach, general vicinity of Morning Star Lane and Polaris Drive. Comment
  CAS-BOT-BC176978  Salsola tragus Peter H. Raven 1957-9-28 11381 Orange At north limits of Surfside Comment
  UCLA55686  Salvia C. Epling and H. Lewis 1940-4-21 Orange 6 mi e San Juan Capistrano Comment
  RSA651802  Salvia leucophylla Shlomo Gat 1959-5-12 34 Orange Carbon Canyon. Comment
  SD43536  Salvia leucophylla Carl B. Wolf 1943-6-8 11449 Orange Rancho Santa Ana Botanic Garden; on dry brushy hillside. 198 Comment
  UC729647  Salvia leucophylla Carl B. Wolf 1932-6-2 Orange Rancho Santa Ana Rancho Santa Canyon (between administration bldg. and tennis court) 198 Comment
  UCD125591  Salvia mellifera P. B. Kennedy 1925-1-12 7 Orange Irvine Ranch. Comment
  UCLA69968  Salvia mellifera Martha Hilend Apr 1921 45 Orange Fullerton, Little Bear Lake; Orange County Park Comment
  UCR131892  Salvia mellifera J. Mallory, V. McCoy 1995-7-3 6454- 127 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  UCR140804  Salvia mellifera Robin G. Marushia 2004-4-16 003 Orange Southern Coast, El Moro Canyon, Crystal Cove State Park, Laguna Beach; grassy ridge southwest of No Name Ridge road in park, downhill from pullout and below closed road to park entrance 244 Comment
  UCR159776  Salvia mellifera Peter A. Bowler 2003-4-20 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh 9 Comment
  RSA751396  Salvinia minima Rick E. Riefner Jr. 2008-7-9 8 -219 Orange City of Laguna Beach, bluff area W of West St. and Pacific Coast Highway. 4 Comment
  UCR193031  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-6-17 35517 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA788901  Sambucus nigra Fred M. Roberts 2008-6-12 7039 Orange Lomas de Santiago: Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  UCR233745  Sambucus nigra Fred M. Roberts 2008-6-12 7039 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  CAS-BOT-BC238825  Sambucus nigra subsp. caerulea C. B. Wolf 1931-7-24 2292 Orange Ravine at Olinda, lower end of Carbon Canyon 152 Comment
  POM201856  Samolus parviflorus L. M. Booth 1932-7-19 s.n. Orange Bolsas Marsh. Comment
  RSA542457  Samolus parviflorus Fred M. Roberts, Kathy Keane 1988-5-25 3987 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark. 82 Comment
  IRVC29096  Sanicula arguta Fred M. Roberts 1989-3-17 4211 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA681945  Sanicula arguta Fred M. Roberts, D. E. Bramlet 2003-3-13 5574 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  UCR191448  Sanicula arguta A. C. Sanders, Fred M. Roberts 2008-4-8 34760 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
  UCR209376  Sanicula bipinnatifida Fred M. Roberts, Linda Farley 2008-3-28 6819 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  RSA794245  Sanicula crassicaulis Doris Hoover Bowers 1971-4-19 1688 Orange Black Star Canyon Indian Site 762 Comment
  SBBG40420  Sanicula crassicaulis J. Ingram 1960-3-29 264 Orange 2 mi above O'Neill Park, Trabuco Cyn Comment
  IRVC22550  Sanicula crassicaulis var. crassicaulis Fred M. Roberts 1985-5-1 1706 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  UCSB48363  Sanicula tuberosa Roberts, Fred 1982-4-18 Orange Santa Ana Mtns.; upper Hot Springs Canyon, 0.1 km. SW Falcon Group Camp; 2.0 km. SE Los Pinos Peak 1075 Comment
  SD37460  Sarcocornia pacifica Edith A. Purer 1932-8-31 4876 Orange Moist location on sand dunes. Comment
  RSA696280  Sarcocornia perennis Keith E. Hoffmaster 1934-7-15 s.n. Orange Santa Ana Mts (Modjeska) Comment
  RSA749467  Saxifraga californica Fred M. Roberts 1999-4-22 5187 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
  RSA83973  Saxifraga californica F. W. Peirson 1925-4-11 5730 Orange Slope above mill, in Silverado Canyon, Santa Ana Mountains. Comment
  RSA729934  Schefflera actinophylla A. C. Sanders, Mark Elvin 2006-12-22 33275 Orange South Coast: Irvine, UCI campus SW of intersection of Jamboree Blvd. and Campus Dr., just outside entrance to UCI Herbarium 15 Comment
  RSA731915  Schoenoplectus americanus Fred M. Roberts, Sandy Leatherman 2007-11-27 6664 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
  RSA735750  Schoenoplectus americanus A. C. Sanders, Fred M. Roberts 2008-6-17 35493 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff s Training Facility, just east of Hwy 241 280 Comment
  CAS-BOT-BC111264  Schoenoplectus californicus Mrs. M. T. Bradshaw 1901-11-1 s.n. Orange Orange, Orange County. Comment
  JEPS83155  Schoenoplectus californicus L. M. Booth 1932-6-4 1139 Orange Newport Bay Comment
  RSA234484  Schoenoplectus californicus James Henrickson 1970-7-25 5070 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March 0 Comment
  RSA731914  Schoenoplectus californicus Fred M. Roberts, Sandy Leatherman 2007-11-27 6665 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  UCR157695  Schoenoplectus californicus Adrian Wolf 1998-5-15 268 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  RSA539372  Schoenoplectus maritimus P. R. Atsatt 1990-10-13 s.n. Orange Newport Beach: Upper Newport Back Bay, Back Bay Drive, 2.7 kilometers W. UC Irvine campus center. 3 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
  UCSB47993  Scirpus microcarpus 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
  RSA647958  Scrophularia californica Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 25 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  UC1125690  Scrophularia californica A. Lewis Apr 1934 385 Orange Silverado Canyon; Cleveland Nat'l Forest, Corona Quadrangle Comment
  UC1011912  Scrophularia californica subsp. floribunda F. W. Pennell and E. M. Harvey 1949-6-29 26811 Orange above San Juan Capistrano (pass at summit of Ortega Hwy) 792 Comment
  CAS-BOT-BC414243  Searsia lancea R. E. Riefner, Jr. 2014-11-21 14 -391 Orange City of Lake Forest, English Canyon, Aliso Creek, vicinity of Cherry Ave. and Fernbank Ave. 145 Comment
  UCR130352  Searsia pendulina A. C. Sanders, Mark A. Elvin 2003-10-12 27325 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  UCR193014  Searsia pendulina A. C. Sanders, Fred M. Roberts 2008-6-17 35500 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UCD170928  Sechium edule D. E. Bramlet 2005-10-13 3916 Orange South Coast: end of Kline Drive, 650 ft south of Orchard Drive in Santa Ana Heights; 2600 ft SW of the S end of John Wayne Airport. 15 Comment
  RSA16  Selaginella bigelovii John Thomas Howell 1927-7-28 506 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  RSA85935  Selaginella bigelovii Frank W. Peirson 1923-5-5 3490 Orange Trabuco Canyon, Santa Ana Mountains 518 Comment
  SBBG27191  Selaginella bigelovii J. T. Howell 1927-7-22 2834 Orange Claymine Cyn 182 Comment
  RSA594877  Selaginella bigelovii Fred M. Roberts, Rick Riefner 1992-2-15 4832 Orange Lomas De Santiago: Foothill Ranch north of El Toro Road, c. 4.7 kilometers SSE Bolero Lookout. 295 Comment
  RSA450849  Senecio aphanactis Karlin G. Marsh 1978-3-16 s.n. Orange UCI Ecological Preserve: Hill #1 52 Comment
  RSA587117  Senecio aphanactis R. E. Riefner 1994-3-28 94 -206 Orange San Clamente State Beach Comment
  CAS-BOT-BC363480  Senecio californicus P. C. Everett 1935-3-15 6294 Orange Rancho Santa Ana, Santa Ana Canyon near Corner Post 3938 182 Comment
  RSA588799  Senecio californicus Fred M. Roberts, D. Bontrager 1990-4-18 4561 Orange Rancho Mission Viejo: ridge between Christianitos and Gabino Canyons (Riverside Cement Lease Holdong), 5.5 km SE Playa Survey Marker. 152 Comment
  UC566656  Senecio californicus H. L. Mason 1926-4-25 2908 Orange five mi s Laguna Comment
  RSA937  Senecio flaccidus var. douglasii J. T. Howell 1927-6-6 43 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA641384  Senecio linearifolius Scott D. White 1998-6-26 6783 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  IRVC904  Senecio vulgaris D. Dixon 1965-3-25 Orange Silverado Canyon. Santa Ana Mountains Comment
  CAS-BOT-BC364605  Senecio vulgaris Ira L. Wiggins 1966-3-22 20544 Orange Trailside in bottom of canyon, near end of pavement, Silverado Canyon, about 5 mi above Ranger Station, Cleveland National Forest Comment
  RSA4779  Senecio vulgaris James Snow s.n. Orange Bryant Ranch, near Long Beach. South East 1/4 Section 25, Township 4S, Range 12 W, Station #1 plant #1 Comment
  UCR188942  Sesbania punicea Robert DeRuff 2006-1 568 Orange Newport Beach, Upper Newport Bay, watercourse near end of 23rd Street on west side of the Bay 10 Comment
  POM765  Sesuvium verrucosum D. L. Crawford s.n. Orange Laguna Canon. Comment
  RSA443821  Sesuvium verrucosum Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel, just N of Warner St. bridge crossing, (No. C05) Comment
  CLARK-A1528-930  Setaria geniculata Patricia A. Andrews 1975-6-26 5917 Orange Capistrano Bay Beach 9 Comment
  IRVC1825  Setaria lutescens J. B. Anderson 1966-4-25 617 Orange Santa Ana: 20021 Birch Street. Southern Coastal Comment
  RSA0027437  Setaria parviflora Fred M. Roberts 2012-7-18 7676 Orange San Joaquin Hills: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  RSA791872  Setaria parviflora R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49619 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  RSA588729  Sidalcea malviflora Fred M. Roberts 1990-5-7 4601 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
  RSA432756  Sidalcea malviflora Christopher Davidson 1977-5-18 5635 Orange Cleveland National Forest, Falcon campground. 1006 Comment
  RSA698173  Sidalcea malviflora R. H. McArthur 1934-3-25 s.n. Orange Paularino roadside. Comment
  UCD116756  Sidalcea neomexicana J. C. Elmore 1929-4-1 2168 Orange Santa Ana. Comment
  RSA735261  Sidalcea spicata Keith E. Hoffmaster 1931-6-24 s.n. Orange South Fork Santa Ana River. Comment
  RSA749489  Silene antirrhina Fred M. Roberts, Linda Farley 2008-3-28 6823 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber s Peak, Irvine Land Conservancy. 457 Comment
  RSA603348  Silene gallica Scott D. White 1997-6-12 5326 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca. 2-4 miles E of I-15/Highway 74 junction. 46 Comment
  RSA0013912  Silene laciniata Fred M. Roberts 2012-5-10 7584 Orange San Joaquin Hills: Buck Gully, south fork, north slope of Pelican Hill, along Pelican Hills Dr., 0.3 km N summit Pelican Hill. 189 Comment
  IRVC20496  Silene laciniata subsp. major Fred M. Roberts 1983-5-4 1026 Orange Temple Hill, Upper Rancho Laguna Canyon, 1.7km SSW Top of the World Sch.; 1.4km ENE Cactus Point, Laguna Beach 200 Comment
  UCR150906  Silene verecunda subsp. platyota Valerie Soza, LeRoy Gross 1999-6-10 514 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  RSA473583  Silybum marianum M. B. Dunkle 1938-4-6 5372 Orange Santa Ana Canyon Comment
  UCR4106  Silybum marianum Ronald M. Cope 1965-4-25 s.n. Orange N side of road between Elsinore and San Juan Capistrano, 5.3 mi NE of San Juan Capistrano Comment
  RSA336  Sisymbrium irio J. T. Howell 1928-2-7 819 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  CAS-BOT-BC75235  Sisymbrium irio Ira L. Wiggins 1965-10-7 20363 Orange Vacant lot between State College Boulevard and Troy High School campus, Fullerton. Comment
  UCR193519  Sisymbrium orientale A. C. Sanders, Mitch Provance 2008-5-20 35392 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR151027  Sisyrinchium bellum Scott D. White 1997-5-6 5039 Orange Peninsular Ranges; Santa Ana Mtns., Lomas de Santiago; Santiago Canyon area; unnamed tributary to Santiago Creek flowing from the SW, directly west of Pancho Canyon 396 Comment
  IRVC18594  Sitanion jubatum Karlin G. Marsh 1980-8-13 s.nn. Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  POM17439  Solanum americanum Philip A. Munz 1923-4-1 6596 Orange Laguna Lakes 61 Comment
  UC132203  Solanum bicorne H. M. Hall and E. B. Babcock No. 1907 and June 1908 8326 Orange Orange, Cal. (Taft's) Comment
  RSA184193  Solanum douglasii I. L. Wiggins 1966-2-4 20413 Orange Trabuco Canyon, about 0.5 mi. above end of open road. Comment
  RSA647960  Solanum douglasii Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-1 7 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  UCR100461  Solanum douglasii B. G. Pitzer 1996-4-30 2762 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 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
  UCR173402  Solanum douglasii Abby Sirulnik 2000-4-11 61 Orange South Coast, Crystal Cove State Park, near Los Trancos Canyon and Pelican Hill 152 Comment
  RSA5969  Solanum douglasii Carl B. Wolf 1932-9-13 4042 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike and Well, 1300 ft W of NE. corner of SE 1/4 sect. 25. 6 Comment
  UCSB41752  Solanum douglasii Rowlands, Peter 1970-3-6 Orange Trabuco Cyn.; approx 2 mi up cyn from O'Neil Park 396 Comment
  SD43527  Solanum rostratum E. Johnson 1946-8-22 11531 Orange sandy river bottom, Rancho Santa Ana, Santa Ana Canyon 399 Comment
  RSA507482  Solanum umbelliferum Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA553111  Solanum umbelliferum Fred M. Roberts Jr. 1989-5-9 4342 Orange Santa Ana Mts: Gypsum Canyon, west fork, 5.6 km WNW Sierra Peak, c.a. 1 km S Highway 91. 146 Comment
  RSA598959  Solanum umbelliferum Scott D. White 1997-3-28 4831 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA638973  Solanum umbelliferum Valerie L. Soza, LeRoy Gross 1999-6-7 494 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UC484257  Solanum umbelliferum C. B. Wolf 1931-3-6 1850 Orange 1/2 mi below Trabuco Camp Ground (w slope Santa Ana Mountains, Trabuco Canyon); Santa Ana Mountains, Trabuco Canyon 609 Comment
  UCR241065  Solanum xanti Dick Newell, Don Millar 2013-3-5 317 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Ridge Rd., 1/4 mi. east of Limestone Canyon Rd. 402 Comment
  UCR97816  Solanum xanti Scott D. White 1997-3-28 4831 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UCR232931  Soleirolia soleirolii R. E. Riefner Jr. 2011-7-1 11- 84 Orange South Coast, city of Newport Beach, beach area west of the end of Cameo Shores Road, south c. 1.5 mi from Poppy Avenue 2 Comment
  UCR241050  Soleirolia soleirolii Robert DeRuff 2012-9-27 554 B Orange South Coast, Upper Newport Bay, adjacent to Back Bay Dr. just past Newporter Canyon 3 Comment
  IRVC21389  Solidago californica A. S. Boughey 1968-7-9 409 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UC537016  Solidago confinis L. M. Booth 1932-12-26 1383 Orange Newport Lagoon Comment
  RSA0127412  Sonchus asper Fred M. Roberts 2016-3-17 8007 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  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
  SEINET179461  Sonchus oleraceus Lawrence Booth 1932-6-15 1193 Orange East of Huntington Beach, Marsh border Comment
  JEPS73760  Sorghum halepense L. M. Booth 1932-7-18 1265 Orange Newport Bay, Costa Mesa Comment
  UC729939  Sorghum halepense Carl B. Wolf 1932-6-13 3724 Orange Malvern & Nicholas Aves. Fullerton 53 Comment
  CAS-BOT-BC235381  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange North limits of Surfside Comment
  POM47952  Spartina foliosa I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA483175  Spartina foliosa E. Yale Dawson 1948-10-2 5300 Orange Balboa Yacht Harbor, just east of 101 Hwy bridge Comment
  SEINET10602937  Spartina foliosa James S. Henrickson 1970-7-24 Henrickson 5024 Orange 2 1/2miles NW of Huntington Beach along south channel of Inner Bolsa Bay, adjacent to Pacific Coast Hy. in Bolsa Chica Salt Marsh; locally abundant & forming pure stand in stagnant shallow salt water channel margin; to 3ft. high. sea level Comment
  IRVC2454  Spartium junceum E. Cowper 1964-4-25 s.n. Orange Laguna. Southern Coastal Comment
  RSA696548  Spergula arvensis Minor Warne 1934-03 s.n. Orange Laguna Canyon Forks Comment
Read comments
Jun 24 2009
  RSA0098512  Spergularia marina Scott D. White 1998-6-26 6780 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  RSA0098515  Spergularia marina P. A. Munz 1923-4-1 6911 Orange Laguna Lakes. 61 Comment
  CDA25247  Spergularia rubra A. C. Sanders, T. B. Salvato 2008-5-13 35347 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Canyon, c. 1/2 mile below Modjeska Canyon confluence. Comment
  RSA5910  Spergularia salina C. B. Wolf 1932-7-2 3817 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  UCR180006  Spergularia villosa Scott D. White 1998-4-9 6264 Orange UC Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Ave. and the new Fwy (Bonita Canyon) 37 Comment
  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
  CAS-BOT-BC236645  Sphenopholis obtusata Samuel B. Parish 1884-6-10 1640 Orange Banks of Santa Ana River Comment
  IRVC26743  Spiloxene ovata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3161 Orange UCI Arboretum Southern Coastal 15 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
  UC1618064  Stachys ajugoides Donald G. Nelson 1935-3-23 176 Orange hills n. Fullerton Comment
  RSA35669  Stachys ajugoides Clara Mason Fox s.n. Orange Silverado Canyon. Comment
  UC421601  Stachys ajugoides var. rigida John Thomas Howell 1927-7-3 2644 Orange Claymine Canyon Santa Ana Mtns Comment
  SBBG120829  Stachys rigida A. C. Sanders, F. M. Roberts, M. Balk 2006-7-20 33018 Orange San Juan Cyn, from lower San Juan Picnic Area to ca. 1 mi downstream, parallel to Hwy 74, near Riverside Co line 366 Comment
  UCSB52461  Stachys rigida Roberts, Fred 1982-5-22 Orange Dana Point; jct. of Stone Hill & Selva rds; 1.0km ESE Dana Hills High School; I.7km SW Marco Forster Junior High School 40 Comment
  POM147494  Stachys rigida subsp. quercetorum F. M. Reed 1928-4-27 5704 Orange Between Laguna and Newport. Comment
  POM4078  Stachys rigida subsp. quercetorum P. A. Munz 1918-5-4 2213 Orange Laguna Beach Comment
  RSA0125886  Stachys rigida subsp. quercetorum Fred M. Roberts Jr. 2012-5-10 7573 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  RSA446585  Stachys rigida subsp. quercetorum Unspecified 1920-6-1 s.n. Orange Laguna. Comment
  RSA734666  Stachys rigida subsp. quercetorum A. C. Sanders, Fred M. Roberts 2008-6-17 35488 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff s Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261. 357 Comment
  RSA588788  Stachys rigida subsp. rigida Fred M. Roberts, Dave Brotrager 1990-4-18 4574 Orange Rancho Mission Viejo: Chiquita Ridge, just west of Canada Chiquita, 2.9 km N Median Rancho Survey Marker 183 Comment
  UCR247898  Stachys rigida var. rigida Fred M. Roberts 2013-6-12 7796 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  CAS-BOT-BC393823  Stellaria media Ira L. Wiggins 1966-2-25 20475 Orange Firestone Boy Scout Reservation, in hills E of Brea Comment
  IRVC9287  Stellaria media B. Gittins 1963-3-29 108 Orange corner of Dorothy Lane and State College Blvd. Fullerton Comment
  UCR191016  Stellaria media A. C. Sanders, Fred M. Roberts 2008-4-22 35033 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  CAS-BOT-BC393820  Stellaria media Ira L. Wiggins 1965-12-5 20368 Orange 2 mi. E of Atwood, on N side of Orangethorpe Ave. Comment
  RSA293  Stellaria media J. T. Howell 1928-2-7 821 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  RSA603298  Stenotaphrum secundatum R. E. Riefner 1997-7-12 97 -233 Orange San Clemente State Beach Comment
  IRVC23252  Stephanomeria diegensis Fred M. Roberts 1982-7-30 787 Orange Niguel Hill, 0.9km ENE Aliso Peak, Laguna Niguel 260 Comment
  UCR149387  Stephanomeria diegensis Scott D. White, Matt Carlton 2003-11-20 9878 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 37 Comment
  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
  UCR224153  Stephanomeria exigua subsp. exigua Fred M. Roberts 2008-7-10 7065 Orange South Coast, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west-northwest of Marine Institute, Dana Point Harbor 65 Comment
  OBI23448  Stipa cernua Unknown 1970-3-23 2166 Orange 2 mi from San Juan Capistrano on State 74 Comment
  UCR223959  Stipa pulchra Fred M. Roberts 2008-4-9 6863 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  UCR191249  Stylocline gnaphaloides A. C. Sanders 2008-4-29 35148 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
  UCR281545  Stylocline gnaphaloides Mitch Provance, Jeremiah George 2017-3-20 317- 116 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  UCR5131  Stylocline gnaphaloides Barbara T. Gittins, O. F. Clarke 1966-3-19 891 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  CAS-BOT-BC422882  Stylomecon heterophylla P. A. Munz 1918-5-4 2171 Orange Laguna Beach Region. Laguna Canon [Canyon] Comment
  CAS-BOT-BC402192  Styrax redivivus R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49686 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA124719  Styrax redivivus E. K. Balls, Percy C. Everett 1957-11-25 3250 Orange Upper Trabuco Canyon, 2.2 mi. ne. from entrance to Holy Jim Canyon, 991 Comment
  RSA5854  Suaeda calceoliformis C. B. Wolf 1932-6-28 3789 Orange Bryant Ranch, near fence., 100 ft. south of NW corner of NW 1/4 of S.E. 1/4 of sect 27. 9 Comment
  RSA758773  Suaeda esteroa Anstruther Davidson 1931 Orange Newport 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
  UCR240184  Suaeda esteroa R. E. Riefner Jr. 2012-11-6 12- 533 Orange South Coast, city of Newport Beach, Newport Bay, North Star Beach, near Newport Aquatic Center, White Cliffs Drive/North Star Lane 2 Comment
  IRVC15182  Suaeda taxifolia H. Smith 1977-4-21 Orange Upper Newport Back Bay, east side, enter from Mesa Dr. and follow drainage ditch. Newport Beach Comment
  IRVC9305  Suaeda taxifolia B. Gittins 1963-5-24 251 Orange [Upper] Newport Back Bay. Newport Beach Comment
  POM259489  Suaeda taxifolia A. C. Keller 1937-11-26 s.n. Orange Santa Ana River Bridge west of Newport Beach on U.S. Highway Alternate 101 Comment
  POM693  Suaeda taxifolia L. T. Street 1917-5-12 s.n. Orange San Juan [Capistrano]. Comment
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Nov 19 2016
  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
  RSA791013  Suaeda taxifolia W. R. Ferren, S. A. Whitmore 1980-8-27 2332 Orange Newport Backbay along Backbay Drive, ca. 1.5 km northeast of Route 1, Newport Beach. Comment
  SDSU5605  Suaeda taxifolia Thomas A. Zink 1971-4-1 Orange In Newport Back Bay about 1 mile west of Jamboree Rd. 3 Comment
  UCR157703  Suaeda taxifolia Adrian Wolf 1998-5-27 330 Orange South Coast, Newport Oil Fields, bluff adjacent to Pacific Coast Highway, c. 250 ft. from ocean, near entrance to oil fields; between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 8 Comment
  IRVC20319  Symphoricarpos mollis Fred M. Roberts 1983-1-19 855 Orange Park Canyon, west flank Temple Hill, along Park Ave., 1.3km NE Thurston Sch.; 1.7km SE Bench Mark 104, Laguna Beach 194 Comment
  RSA696580  Symphoricarpos mollis Olive Van Meter s.n. Orange Black Star Canyon. Comment
  RSA581436  Symphoricarpos mollis Fred M. Roberts, Gordon Marsh 1989-5-21 4354 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
  RSA7691796  Symphoricarpos rotundifolius var. parishii Robt. Allen 2003-6-22 12276 Orange North-facing upper slope of Santiago Peak, along North Main Divide Road, circa 0.15 air miles north-northwest of Santiago Peak summit. 1687 Comment