Search Results — 2000 specimen records retrieved (1630 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA697264  Abelia X grandiflora M. Gidcomb 1934-09 s.n. Orange Santa Ana Comment
  IRVC28912  Abronia maritima R. E. Reifner 1994-5-22 94 380 Orange San Mateo Point; W of RR tracks, N of County line marker. Southern Coastal 6 Comment
  RSA764470  Abronia maritima Doris Bowers 1957-5-16 207 Orange Corona Del Mar 3 Comment
  SBBG69882  Abronia maritima M. N. Ackley 1928-9-22 Orange Sunset Beach Comment
  UC1280004  Abronia maritima Peter H. Raven 1957-9-28 11392 Orange Huntington Beach Comment
  UCR228888  Abronia maritima Dick Newell, Don Millar 2011-7-29 216 Orange South Coast, Bolsa Chica Ecological Reserve, 1.3 miles southeast of Pacific Coast Hwy at Warner Ave. 5 Comment
  CAS-BOT-BC229407  Abronia umbellata David D. Keck 1933-9-21 2535 Orange Sunset Beach Comment
  IRVC29759  Abronia umbellata Barry S. Nerhus, Mark A. Elvin 2006-11-4 12 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  UCR42433  Abronia umbellata A. C. Sanders 1986-5-31 6528 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  RSA0025969  Abronia villosa Dorothy Parsons 1932-3-28 s.n. Orange Buena Park Road. Comment
  RSA727606  Abutilon palmeri R. E. Riefner Jr. 2006-9-5 06 -418 Orange Southern Coast: Corona del Mar, Ocean Blvd. Near Iris Ave. 11 Comment
  RSA0126616  Acacia Fred M. Roberts 2012-4-27 7497 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  CDA23153  Acacia cyclops Mark A. Elvin, D. G. Kelch 2006-12-9 5291 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  SD175820  Acacia cyclops D. G. Kelch 2006-12-9 06 554 Orange Irvine. University Dr. along tidal Creek just E of I-73. 9 Comment
  RSA767264  Acacia redolens Scott D. White, Michael Honer 2004-5-17 10391 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
  RSA450873  Acacia saligna Fred M. Roberts 1984-3-15 1260 Orange Newport Beach; Upper Newport Back Bay, along Back Bay Drive, 3.0 km. W UC Irvine campus center; 1.0 km. SSW Bayview School. 2 Comment
  IRVC29884  Acacia saligna Mark A. Elvin, D. Kelch, Barry S. Nerhus, Patricia Iluore 2006-12-9 5325 Orange Newport Backbay; along Bayside Drive ca. 100 m W of Eastbluff Dr. Southern Coastal 5 Comment
  HSC79051  Acalypha californica Steve Boyd, L. F. LaPre 1981-5-27 Orange N end of the Santa Ana Mtns., along powerline road on ridges E of Weir Canyon and at the head of Gypsum Canyon Comment
  CAS-BOT-BC333256  Acer macrophyllum P. A. Munz; R. D. Harwood 1920-4-23 3730 Orange Santa Ana Mts., Silverado Canon 548 Comment
  RSA76986  Acer macrophyllum F. W. Peirson 1925-4-11 5736 Orange Silverado Canyon, Santa Ana Mountains. 610 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
  RSA542360  Achnatherum coronatum Fred M. Roberts 1988-4-8 3897 Orange Lomas de Santiago: Loma Ridge, Central Linestone Canyon, 4.1 kilometers NNW Bolero Lookout. 323 Comment
  RSA791875  Achnatherum coronatum R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49617 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  UCSB47994  Acmispon heermannii Roberts, Jr., Fred 1980-7-7 Orange Santa Ana Mtns.; San Juan Canyon, Calif. Rte. 74; 2.2 km. ENE San Juan Guard Station; 0.6 km W Bench Mark 1100 305 Comment
  SEINET5327567  Acmispon strigosus var. strigosus I. W. Clokey 1932-3-1 5328 Orange Laguna Beach; Bluff facing Ocean Comment
  RSA734663  Acourtia microcephala A. C. Sanders, Fred M. Roberts 2008-6-17 35485 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
  CAS-BOT-BC308928  Acroptilon repens Scott D. White 1997-3-26 4818 Orange University of California Irvine Campus, site of proposed student recreation center, east of main campus. Existing Farm School between California Avenue and Culver Drive 30 Comment
  UCD128505  Acroptilon repens John W. Ingram 1953-12-1 s.n. Orange two miles north of Huntington Beach on State Highway #39. Comment
  RSA750003  Adenostoma fasciculatum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35319 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UC1544779  Adenostoma fasciculatum D. S. Seigler and E. Rodriguez 1978-5-13 11003 Orange Trabuco Canyon Comment
  RSA357  Adenostoma fasciculatum var. fasciculatum J. T. Howell 1928-4-15 919 Orange East boundary of the Rancho Santa Ana 229 Comment
  RSA658199  Adenostoma fasciculatum var. fasciculatum T. A. Daubert 1991-5-19 653 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  CAS-BOT-BC443959  Adiantum capillus-veneris R. E. Riefner, Jr. 2012-2-23 12 -43 Orange City of Laguna Beach, Treasure Island Beach, vicinity of Wesley Drive and South Coast Highway. 1 Comment
  RSA687673  Adiantum capillus-veneris Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  RSA739277  Adiantum capillus-veneris R. E. Riefner 2008-7-9 08 -218 Orange Orange County: City of Laguna Beach, bluff area W of W St. and Pacific Coast Hwy. 6 Comment
  POM256963  Adiantum jordanii W. Pequegnat 1940-6-14 s.n. Orange Yaeger's Meadow. Santa Ana Mountains 914 Comment
  RSA739331  Adiantum jordanii Keith E. Hoffmaster 1928-1-26 29 Orange Santa Ana Mtns Comment
  RSA84993  Adiantum jordanii F. W. Peirson 1924-5-31 4666 Orange 5 miles SE of Laguna Beach. 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-BC127479  Agrostis capillaris Ira L. Wiggins 1965-10-24 20291 Orange Roadside at corner of Yorba LInda and State College Boulevards, Fullerton. Comment
  UCR56092  Agrostis viridis Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mtns., Santa Ana Mtns. 274 Comment
  RSA725516  Ailanthus altissima Fred M. Roberts, Robert L. Allen 2007-9-28 6614 Orange Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  RSA725525  Ailanthus altissima Fred M. Roberts, Robert L. Allen 2007-9-28 6599 Orange Foothill Trabuco area: Upper Aliso Creek at SE corner of El Toro Road and Valle Vista Way, c.a. 1.8 km NE Upper Oso Reservoir. 308 Comment
  RSA759146  Ailanthus altissima Robert Allen, D. Taylor 2008-7-19 s.n. Orange Eastern arm of Bedford Peak, along North Main Divide Road, 2.2 road miles N of junction with Bedford Road, 5.9 miles N of junction with Maple Springs Road. 1155 Comment
  UCR215292  Allium haematochiton Fred M. Roberts, D. E. Bramlet 2008-5-13 6952 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  RSA708816  Allium peninsulare var. peninsulare Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6213 Orange Main Divide Road, ridge between Silverado and Bixby Canyons, coastal slope, 0.46km (air) S Bald Peak. 1203 Comment
  SBBG863  Allium praecox H. and M. Dearing 1937-4-12 3100 Orange Santa Ana Cyn Comment
  UCR192119  Allium praecox A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35305 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  POM3515  Allophyllum glutinosum L. R. Abrams 1901-06 1841 Orange Santiago Peak. 1524 Comment
  RSA539356  Allophyllum glutinosum Fred M. Roberts 1988-6-10 4100 Orange Modejeska Peak, 0.8 km SW summit along crest. 1548 Comment
  SD152789  Allophyllum glutinosum Steve Boyd, Tim Ross 1992-5-20 7452 Orange San Mateo Canyon Wilderness Area; western edge of the wilderness in Lucas Canyon along a new secdtion of trail heading up major side canyon northwart to Sitton Peak Road. 29 Comment
  RSA144  Alnus rhombifolia J. T. Howell 1927-7-21 452 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA581438  Alnus rhombifolia Fred M. Roberts, Gordon Marsh 1932-2-7 4357 Orange Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, c.a. 3.0 km WSWLaurel Springs. 436 Comment
  RSA696343  Alnus rhombifolia Minor Warne 1934-02 s.n. Orange Modjeska Canyon Comment
  RSA562818  Aloe saponaria Steve Boyd 1992-5-20 7471 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, about old mining habitations in side canyon, upstream 1/4 mile from Lucas Canyon Trail crossing and north spur trail 1/8 mile. 390 Comment
  IRVC26717  Aloe striata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3183 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR193368  Amaranthus albus A. C. Sanders, T. B. Salvato 2008-5-13 35346 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCD97207  Amaranthus blitoides Ira L. Wiggins 1965-10-18 20274 Orange NE corner of Chapman Ave. and Victor Dr. Fullerton. Comment
  CLARK-A1528-979  Amaranthus californicus Patricia A. Andrews 1975-6-26 5930 Orange Capistrano Bay Beach 9 Comment
  CLARK-A1528-4888  Amaranthus deflexus John C. Roos 1937-5-21 2065 Orange Orange Comment
  UCD97413  Amaranthus hypochondriacus A. R. Roos 1937-12-2 s.n. Orange Santa Ana. Comment
  UCR207561  Amaranthus palmeri O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  POM201875  Amaranthus powellii L. M. Booth 1932-7-21 s.n. Orange Anaheim Creek 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
  IRVC17986  Amblyopappus pusillus A. B. McGee 1980-9-9 Orange San Diego Creek Channel, adjacent to San Joaquin Freshwater Marsh. Irvine Comment
  POM202164  Amblyopappus pusillus L. M. Booth 1932-5-12 1007 Orange Newport Bay. Comment
  UC1543151  Amblyopappus pusillus Donald G. Nelson 1935-4-14 280 Orange along main coast highway, edge of dry mesa facing Newport Bay Newport Beach Comment
  UCSB8603  Amblyopappus pusillus Anderson, J. 1966-4-16 Orange Corona Del Mar: Buck Gully "Little Corona Beach" 15 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
  RSA184184  Ambrosia acanthicarpa I. L. Wiggins 1965-11-6 20351 Orange Near well #14, Kramer Oil Estates, near end of county road 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
  UCSB48044  Ambrosia acanthicarpa Roberts, Fred 1981-9-26 Orange Anaheim Bay; Calif. Rte. 1 at southern margin of Naval Weapons Station, 1.7 km. SE McGaugh School; 1.1 km. W Hog Island 1 Comment
  POM4813  Ambrosia chamissonis Anonymous 1897-5-16 s.n. Orange Ocean Beach. Comment
  CAS-BOT-BC45060  Ambrosia psilostachya Ira L. Wiggins 1965-10-27 20304 Orange Roadside just SW of Los Angeles County line along Brea Canyon Road Comment
  CHSC35783  Ambrosia psilostachya James Henrickson 1972-10-21 8056 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy along La Palma Ave., just N of Santa Ana River. 60 Comment
  IRVC29814  Ambrosia psilostachya Laura D. Lyons, Mark A. Elvin 2006-9-23 428 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
  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
  UCR197676  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-9-18 36073 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  CAS-BOT-BC45065  Ambrosia psilostachya Carl B. Wolf 1932-7-7 3841 Orange Bryant Ranch, Bixby Ave, south edge of field 2/10 mi W of Hansen Rd 152 Comment
  POM47597  Ambrosia psilostachya I. M. Johnston s.n. Orange 3 mi. N of Balboa Comment
  POM4802  Ambrosia psilostachya D. L. Crawford 1929-07 s.n. Orange Coast hills and shore. Comment
  RSA800133  Ammannia coccinea Justin M. Wood 2010-9-29 2746 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
  POM12449  Ammannia robusta P. A. Munz 1922-9-2 6353 Orange Ponds in Laguna Canyon 46 Comment
  IRVC8871  Ammi majus Charles W. Sexton 1963-7-15 s.n. Orange Costa Mesa. Southern Coastal Comment
  SEINET12120344  Ammi visnaga L. M. Booth 1932-1 1268 Orange Sant Ana River Flats, near the sea Comment
  CAS-BOT-BC162062  Ammophila breviligulata L. R. Abrams 1917-6-23 6575 Orange Balboa. Comment
  UCD170780  Amorpha fruticosa Dick Newell; Don Millar 2012-5-22 260 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon, 0.4 mi. NE of Irvine Dam spillway. 207 Comment
  UCR138407  Amorpha fruticosa Scott D. White, Brian Leatherman 1997-6-12 5329 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
  UCR240112  Amorpha fruticosa Dick Newell, Don Millar 2012-5-22 260 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon, 0.4 mi. NE of Irvine Dam spillway 207 Comment
  HSC3522  Amsinckia intermedia J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  RSA702989  Amsinckia intermedia D. E. Bramlet, Fred Roberts 2003-3-13 3333 Orange Donna O Neill Reserve. North East ridge of the reserve, 915m W of Cristianitos Rd. & 1.2km N of the E-W access road. 195 Comment
  UC971736  Amsinckia intermedia L. M. Booth 1932-5-30 1137 Orange Newport Bay Comment
  RSA0016948  Amsinckia intermedia S. A. W. 1971-4-22 19 -D Orange Carbon Canyon Road (St. Hwy. 142) at jct. with Co. dump rd. 1 mi. N Imperial Hwy. 183 Comment
  UCD119277  Amsinckia intermedia Francia Chisaki 1957-4-3 927 Orange 6 miles S of Irvine, just S of El Toro near top of hill on Highway 101. Comment
  HSC17835  Anagallis arvensis J. W. Johnson 1961-3-29 Orange Newport Beach, on S side of upper Newport Bay Comment
  UCR96890  Anagallis arvensis Scott D. White 1993-4-28 1288 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner 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
  CAS-BOT-BC400332  Anemopsis californica E. Frost 1996-5-11 12 Orange Newport Back Bay, 150 yards in along bike path 7 Comment
  RSA0042764  Anemopsis californica Fred Roberts 2012-7-18 7671 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
  RSA5818  Anemopsis californica C. B. Wolf 1932-6-28 3803 Orange Edge of field and road (Bixby Ave.) 650 ft. east of SW corner of NW 1/4 of NW 1/4 of Sect. 33. Comment
  RSA5909  Anemopsis californica C. B. Wolf 1932-7-2 3818 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 21 Comment
  JEPS104670  Anemopsis californica John L. Morrison 1937-6-22 2594 Orange marsh between the road (Hwy 101) and the ocean Comment
  POM294119  Anthemis cotula Lyman Benson 1946-7-8 12104 Orange Corona del Mar. 0 Comment
  RSA681268  Antirrhinum coulterianum Scott D. White, Michael Honer 2003-5-29 9435 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. Steep, gen. south-facing slopes above trib. to Trampas Canyon, ca. 0.6 air mi. S of Ortega hwy and ca. ca. 0.5 mi west of Trampas Cyn. 122 Comment
  CLARK-A1528-4161  Antirrhinum coulterianum subsp. orcuttianum John C. Roos 1937-5-10 2082 Orange San Juan Capistrano Comment
  RSA0009199  Antirrhinum multiflorum Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6533 Orange Along dirt road on ridge between Fremont and Black Star Cyns., 5.2km ENE Irvine Lake Spillway and 1.7km W Hidden Ranch. 739 Comment
  UCR203905  Antirrhinum multiflorum R. E. Riefner Jr. 2008-6-3 08- 139 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east fork at upper Fremont Canyon, along Black Star SCE Road 618 Comment
  RSA732279  Antirrhinum nuttallianum A. C. Sanders 2008-4-29 35135 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  POM354914  Antirrhinum nuttallianum subsp. nuttallianum M. B. Dunkle 1934-6-18 3994 Orange San Juan Canyon; Southern Coastal 305 Comment
  POM96035  Aphanisma blitoides P. A. Munz 1926-4-15 10823 Orange 2 miles NW of Laguna Comment
Read comments
Dec 4 2014
  UC537056  Aphanisma blitoides P. A. Munz 1934-3-26 13131 Orange bluffs Newport Beach 22 Comment
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Dec 4 2014
  POM201612  Apium graveolens L. M. Booth 1932-6-7 1158 Orange Newport Lagoon. Comment
  RSA0002591  Apium graveolens var. graveolens F. W. Peirson 1924-5-31 4656 Orange Open Canyon, Laguna Beach. 91 Comment
  UCR230242  Apocynum cannabinum Dick Newell, Peter Wetzel, Cassie Backer 2011-7-5 202 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 242 Comment
  RSA725520  Araujia sericifera Fred M. Roberts, Robert L. Allen 2007-9-28 6604 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  SD254523  Araujia sericifera Eric Focht 2016-7-8 1 Orange South Coast: University of California Research and Extension Center, 7601 Irvine Blvd., Irvine Field 6 (El Toro 7.5'Q) 13 Comment
  SD255137  Arbutus menziesii R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49826 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UCR273489  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42605 Orange Peninsular Range; Santa Ana Mountains, North Main Divide Road (Forest Rte 3S04) between Hwy 74 and Los Pinos Spring, 1.7 km NW (312 deg. ) of El Cariso Fire Station 959 Comment
  UCR282324  Arctostaphylos glandulosa A. C. Sanders, Yi Huang 2017-3-3 42703 Orange Peninsular Range; Santa Ana Mtns., North Main Divide Road, 6.5 km north of Hwy 74, at junction to Blue Jay and Falcon Camps 1038 Comment
  RSA629320  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15523 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  UCD105711  Arctostaphylos glandulosa subsp. glandulosa K. M. Meyer; A. Townesmith 2007-3-10 2 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  RSA0051413  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]. 457 Comment
  UC1302404  Arctostaphylos glandulosa subsp. zacaensis Robert F. Thorne and John Olmstead 1963-7-26 32838 Orange in Tin Mine Canyon above Beek's Spring; Cleveland National Forest, Santa Ana Mts., Trabugo District 609 Comment
Read comments
Apr 25 2011
  UCR132566  Aristea capitata Robert DeRuff 1985-5-6 116 Orange Southern Coast, Newport Back Bay, near the old salt works 3 Comment
  RSA0013950  Aristida adscensionis Fred M. Roberts 2008-4-24 6929 Orange Lomas de Santiago: Loma Ridge, lower Hicks Cyn. 350 meters east of Haul Rd., 1.9 km E Rattlesnake Cyn. Reservoir dam and 2.1 km W Bee Peak. Irvine Ranch Conservancy. 180 Comment
  RSA588884  Aristida adscensionis Fred M. Roberts, D. Bontrager 1990-6-5 4670 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
  RSA663206  Aristida purpurea var. parishii R. E. Riefner 2000-8-21 20 -729 Orange NCCP North Ranch Policy Plan Area. Along dort road running S from Baker Canyon Road to Silverado Road. 335 Comment
  POM293902  Artemisia biennis Robert M. Muir 1946-10-24 s.n. Orange Midway between Corona del Mar and Santa Ana. Comment
  LA202978  Artemisia californica Joseph Andorfer Ewan; 1932-7-28 7710 Orange above salt marsh flat, E end of Newport Bay Comment
  POM201782  Artemisia californica L. M. Booth 1932-7-27 1327 Orange Corona del Mar, Newport Bay. Comment
  SEINET227962  Artemisia californica Leila M. Shultz 1980-5-2 4040 Orange Orange County: foothills south of Diamond Bar, Chaparral. 213 Comment
  UCSB68454  Artemisia californica Hook, Elizabeth; Tran, Caroline 2006-2-4 Orange Southern Coastal: San Joaquin Marsh; NW bluff edge (Tustin 7.5': 11s -420502E, 3724694N) Comment
  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
  UCR231349  Artemisia douglasiana A. C. Sanders, Kent Beaman 2011-9-27 39900 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  RSA748272  Artemisia dracunculus A. C. Sanders, Fred M. Roberts 2008-6-17 35514 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UC520306  Artemisia dracunculus Joseph Andorfer Ewan 1932-7-28 7687 Orange Corona del Mar Comment
  RSA0059639  Arthrocnemum subterminale A. C. Sanders, Dan Malueg, K. D. Jones 2000-4-19 23340 Orange Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 0 Comment
  RSA478873  Arthrocnemum subterminale Anstruther Davidson 1914-10-1 2988 Orange Newport Comment
  UCR193029  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35519 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  IRVC18898  Asclepias fascicularis Fred M. Roberts 1981-6-22 281 Orange Hwy 74, 5.2km ENE San Juan Capistrano, Rancho Mission Viejo 100 Comment
  IRVC19386  Asclepias fascicularis R. L. Allen 1978-8-27 s.n. Orange Laguna Canyon; disturbed area, roadside. San Joaquin Hills? Comment
  RSA5959  Asclepias fascicularis C. B. Wolf 1932-7-7 3853 Orange Bixby Ave, about 1 mi. east of Los Alamitos Blvd., 100 ft. W. of S.E. corner of N.E 1/4 of N.W 1/4 Comment
  IRVC27930  Asclepias fruticosa A. C. Sanders, Mark A. Elvin 2003-10-12 27328 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
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Aug 31 2020
  RSA743466  Asparagus aethiopicus Fred M. Roberts, Carol A. Roberts 2008-9-28 7118 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  SEINET3153585  Aspidotis californica W. B. Crockatt 1908-6-1 sn Orange Capistrano Valley Comment
  POM9822  Aspidotis californica P. A. Munz, R. D. Harwood 1920-4-24 3743 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA696239  Aster exilis Keith E. Hoffmaster 1927-10-16 s.n. Orange Santa Ana Comment
  RSA701753  Astragalus brauntonii Elisabeth Landis, Valentin Arvizu, Cliff McLean, Kadest Ketsella 2004-9-6 s.n. Orange Specimen located against wooden cofferdam in wet sand in CalTrans debris basin on S side of 91 Freeway in Coal Canyon. Comment
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Nov 22 2011
  RSA735969  Astragalus didymocarpus var. didymocarpus Scott D. White, Justin M. Wood 2008-4-21 11904 Orange Chino Hills: Chino Hills State Park, N of 91 freeway, above Yorba Linda. 366 Comment
  UCD104734  Astragalus didymocarpus var. didymocarpus G. H. Vansell 1939-4-23 s.n. Orange Santiago Canyon. Comment
  UCR191320  Astragalus gambelianus A. C. Sanders, Fred M. Roberts 2008-4-8 34748 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA651494  Astragalus gambelianus D. E. Bramlet 2000-4-21 2989 Orange Exposed terraces west of Blind Cyn. and North of Irvine Park. The site is 1.5 km west of Blind Canyon and 76m north of Irvine Park. This locality is 122m southwest of the MWD access road. 226 Comment
  SEINET10491172  Astragalus trichopodus subsp. leucopsis Tilforth 1979-5-23 TILFORTH 1808 Orange On steep rock cliffs with encelia califronica, eriogonum fasciculatum. Mouth of Aliso canyon, s laguna. Comment
  RSA2069  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-6 s.n. Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  RSA725806  Atriplex T. B. Salvato, Mitch Provance, Katie Kurtz 2006-10-15 1906 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive. 6 Comment
  UC1980256  Atriplex R. E. Riefner Jr. 2007-10-26 07 -453 Orange City of Laguna Niguel, Laguna Niguel Regional Park, Sulphur Creek Reservoir, near La Paz Rd. and Kings Rd. Comment
  RSA737849  Atriplex R. E. Riefner 2006-10-19 06 -546 Orange City of Lake Forest, 0.5 mile N of Alton Pwy on E side of SR 241. 230 Comment
  SD243118  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 (Dana Point 7.5'Q) 66 Comment
  CDA2882  Atriplex amnicola R. E. Riefner Jr. 2006-4-17 06 -155 Orange Upper Newport Bay, near Bayview Way and Bayview Place. Comment
  SBBG122000  Atriplex amnicola R. E. Riefner 2006-8-6 06 -381 Orange Big Cyn Crk drainage near Back Bay Drive, Newport Bay 8 Comment
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Dec 13 2012
  POM48694  Atriplex argentea I. M. Johnson 1924-8-29 s.n. Orange Corona Del Mar Comment
  UC7071  Atriplex argentea var. mohavensis A. J. McClatchie 1896-6-20 Orange Westminster Comment
  POM17484  Atriplex californica P. A. Munz 1923-4-1 6912 Orange Laguna Lakes. 61 Comment
  POM293160  Atriplex californica Lyman Benson 1946-4-27 12054 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  SEINET3930302  Atriplex californica F. A. MacFadden 1931-3-1 2927 Orange Laguna Beach.; 0 Comment
  RSA452452  Atriplex canescens Albert J. Perkins 1909-7-4 s.n. Orange Laguna Beach. Comment
  UC520302  Atriplex canescens Joseph Andorfer Ewan 1932-7-28 7707 Orange seaward bluffs at Corona del Mar; seaward bluffs at Corona del Mar Comment
  UC536969  Atriplex canescens Lawrence M. Booth 1932-7-23 1301 Orange Corona del Mar , Corona del Mar (Newport Beach) Comment
  UCD97285  Atriplex canescens Lawrence M. Booth 1932-7-23 1301 Orange Corona del Mar, Newport Beach. Comment
  UCD97302  Atriplex canescens A. C. Sanders 1990-10-6 10193 Orange Newport Bay, North Star County Beach area on the SW end of the bay, 2 km inland of Hwy. 1. 1 Comment
  UCR221461  Atriplex canescens Dick Newell, Don Millar, Steve Shinn 2010-9-28 38 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Haul Road (Jeffrey Rd.) 1/2 mile east of Hwy 241 toll road 236 Comment
  CAS-BOT-BC170191  Atriplex canescens subsp. canescens I. M. Johnston 1918-9-3 2149 Orange Laguna Beach 6 Comment
  CAS-BOT-BC170196  Atriplex canescens subsp. canescens John Thomas Howell 1927-10-22 3162 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  RSA542648  Atriplex coulteri Fred M. Roberts, Kathy Keane 1988-5-26 4014 Orange Ranch Mission Viejo: Christianitos Canyon, 4.0km ESE Viejo Survey Mark. 162 Comment
  IRVC25488  Atriplex davidsonii Fred M. Roberts, Karen Calloway 1987-8-19 3585 Orange San Joaquin Freshwater Marsh, 1.7km NW University of California, Irvine campus center near Fairchild; Irvine 2 Comment
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Feb 1 2020
  CDA23267  Atriplex glauca R. E. Riefner Jr. 2005-12-13 05 -784 Orange Lake Forest; E side of SR-241, ca. 0.5 mi. N of Alton Pkwy. Comment
  RSA0028779  Atriplex glauca R. E. Riefner Jr. 2002-5-4 20 -87 Orange City of Dana Point, beach W of Pacific Coast Hwy. near mouth of Salt Creek. 15 Comment
  SBBG133612  Atriplex glauca R. E. Riefner Jr. 2005-12-31 05 -784 Orange ca. 0.5 mi N of Alton Pkwy on E side of SR-241; Lake Forest 230 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
  RSA743658  Atriplex glauca R. E. Riefner Jr. 2007-8-22 7 -370 Orange Ladera Ranch/San Juan Capistrano area, Antonio Pkwy. ca. 0.6 miles S of Covenant Hills Rd. 170 Comment
  RSA708449  Atriplex lentiformis Mark Elvin 2004-5-2 3423 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  RSA478324  Atriplex leucophylla N. C. Cooper 1942-11-9 884 Orange Balboa Comment
  SD40196  Atriplex leucophylla Edith A. Purer 1932-8-31 4870 Orange Along Route 101. Comment
  RSA251  Atriplex prostrata J. T. Howell 1927-10-29 s.n. Orange Bryant Ranch, near Long Beach. 15 Comment
  RSA700320  Atriplex rhagodioides Roger Reinke 2003-2-18 s.n. Orange South Coast: Newport Back bay, Big Canyon 30 Comment
  POM201893  Atriplex rosea L. M. Booth 1932-8-5 s.n. Orange West Newport Beach Comment
  CLARK-A1528-980  Atriplex semibaccata Patricia A. Andrews 1975-6-26 5924 Orange Capistrano Bay Beach 9 Comment
  HSC34526  Atriplex semibaccata J. D. Ackerman, A. M. Montalvo 1974-3-28 167 Orange S Laguna, by S Laguna Sanitary Station Comment
  UC1136334  Atriplex semibaccata A. Lewis Apr 1934 389 Orange Celery Corona Quad., Celery 0 Comment
  POM201921  Atriplex semibaccata L. M. Booth 1932-6-9 1180 Orange Santa Ana River, 1 mile from ocean. Comment
  POM201891  Atriplex serenana L. M. Booth 1932-5-19 1070 Orange Newport Lagoon, Corona del Mar. Comment
  POM201919  Atriplex serenana L. M. Booth 1932-7-4 1255 Orange Newport Lagoon. Comment
  RSA292521  Atriplex serenana James Henrickson 1972-10-21 8064 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine., Irrigated grassland eventually to be used for large Newport Beach Business Center. 46 Comment
  POM201963  Atriplex serenana L. M. Booth 1932-7-25 1315 Orange Santa Ana River 2 miles from ocean. Comment
  UC206816 Image available Atriplex serenana var. davidsonii A. Davidson, M. D. Sep 1913 2951 Orange Balboa; ; Balbra Comment
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Feb 22 2012
  UCR143653  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
  UCR154266  Atriplex suberecta Mark A. Elvin 2004-5-2 3424 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  HSC24443  Atriplex watsonii Christopher Davidson 1970-7-27 1502 Orange Bolsa Chica salt marsh, 1 mi. S of Warner Ave., opposite Seal Beach Comment
  RSA678745  Atriplex watsonii Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1100 -b Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  UCR14058B  Atriplex watsonii Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  RSA453969  Atriplex watsonii H. E. Hasse, Anstruther Davidson 1907-9-12 1768 Orange Newport. Comment
  UCD56188  Avena barbata Ira L. Wiggins 1966-2-18 20450 Orange 1/2 mile west of entrance to Rancho Santa Ana. Near end of Orangethorpe Ave. Comment
  UCD56212  Avena barbata Beecher Crampton 1963-5-7 6792 Orange Ca. 11 miles NE of San Juan Capistrano. State Hwy. 74. Lower San Juan Canyon. Santa Ana Mountains. Comment
  UCR99871  Avena barbata Scott D. White 1993-3-5 1114 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  HSC9025  Avena fatua J. W. Johnson 1961-3-29 Orange Newport Beach Comment
  IRVC27505  Avena fatua Mark A. Elvin 2004-5-2 3421 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA385407  Avena fatua Anonymous 1914-8-22 s.n. Orange Near Harper. [1909-1920, then became Costa Mesa] Comment
  RSA697311  Avena fatua Keith E. Hoffmaster 1936-4-14 s.n. Orange Santa Ana Comment
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Nov 20 2011
  RSA781941  Avena fatua Mark A. Elvin 2003-2-23 2316 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UCR193069  Avena fatua A. C. Sanders, T. B. Salvato 2008-5-13 35336 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  IRVC15200  Baccharis douglasii Karlin G. Marsh 1977-9-16 Orange Huntington Beach: Huntington Cental Park, Shipley Nature Center southern coastal Comment
  POM201738  Baccharis douglasii L. M. Booth 1932-6-28 1222 Orange Bolsas Marsh. Comment
  POM48018  Baccharis douglasii I. M. Johnston 1924-8-29 s.n. Orange 3 miles NW of Huntington Beach Comment
  RSA151095  Baccharis douglasii Peter H. Raven 1961-10-15 16861 Orange Coast Hwy 2 miles SE of Sunset Beach 0 Comment
  IRVC25196  Baccharis emoryi Fred M. Roberts, Robert Fisher 1986-10-28 3179 Orange Main Divide Truck Trail Extension, 2.3km E Los Pinos Peak, in seep at base of south-facing road cut. Santa Ana Mountains 1030 Comment
  POM201806  Baccharis emoryi L. M. Booth s.n. Orange Newport Beach Comment
  JEPS57449  Baccharis glutinosa L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2044 a Orange north of (across U.S. Highway 101 from Huntington State Beach) Newport Beach; Bolsas Marsh Comment
  UCR112095  Baccharis glutinosa A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23336 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  RSA741697  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08 -173 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Rd. 470 Comment
  RSA292686  Baccharis pilularis James Henrickson 1972-10-21 8047 Orange Eastern Anaheim, 2 blocks E of Imperial Hwy along LA Palma Ave, just N of Santa Ana River. 61 Comment
  IRVC517  Baccharis pilularis subsp. consanguinea A. S. Boughey 163 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  CHSC13483  Baccharis salicifolia T. R. Casale 1974-4-11 7 Orange Ca. 1.3 mi NE of the Mission San Juan Capistrano on Hwy 24. 42 Comment
  IRVC27500  Baccharis salicifolia Mark A. Elvin 2004-5-2 3414 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA184139  Baccharis salicifolia I. L. Wiggins 1966-2-4 20418 Orange Watercourse near mouth of Trabuco Canyon.Waterfront St. near Mission Rock Terminal, San Francisco Comment
  RSA301940  Baccharis salicifolia Jim Shevock 1970-10-19 s.n. Orange Newport Back Bay 152 Comment
  UCR247875  Baccharis salicifolia Fred M. Roberts 2012-9-6 7703 Orange SAN JOAQUIN HILLS: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 km WNW Pelican Hill summit. 37 Comment
  JEPS21281  Baccharis salicifolia subsp. salicifolia J. Thomas Howell 1927-10-23 3171 Orange Rancho Santa Ana, Santa Ana River Comment
  JEPS21857  Baccharis salicifolia subsp. salicifolia Annette Waters 1958-3-30 161 Orange 3.2 mi ne of, on State Highway 91, 18 Atwood Placentara turnoff Comment
  UC1292590  Baccharis salicifolia subsp. salicifolia C. L. Hitchcock and C. V. Muhlick 1964-3-17 23068 Orange 8 mi e of Yorba Linda (Santa Ana Canyon); Santa Ana Canyon Comment
  IRVC25221  Bassia hyssopifolia Fred M. Roberts 1986-11-4 3202 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  CAS-BOT-BC75513  Batis maritima A. Davidson M. D. 1907-9-7 s.n. Orange Newport. 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
  POM14338  Batis maritima J. B. Feudge 1922-8-13 s.n. Orange Newport Beach Comment
  RSA439754  Batis maritima F. R. Fosberg 1931-8-19 S 5678 Orange Newport Bay. 1 Comment
  UCR193051  Bebbia juncea A. C. Sanders, Mitch Provance 2008-5-20 35404 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  CAS-BOT-BC106423  Bebbia juncea var. aspera John Thomas Howell 1927-6-2 2412 Orange Southern Puente Hills in teh Santa Ana Canyon [Canon] 152 Comment
  UC527451  Bebbia juncea var. aspera C. B. Wolf 1931-7-25 Orange n of Pear Orchard (Rancho Santa Ana, Santa Ana Canyon); Rancho Santa Ana, Santa Ana Canyon 121 Comment
  RSA799647  Bidens frondosa Justin M. Wood 2010-9-29 2742 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
  RSA696878  Bidens pilosa Effie Jessup s.n. Orange Waste ground Comment
  RSA652084  Bloomeria crocea Shlomo Gat 1959-5-12 38 Orange Hills in Orange county. Comment
  SEINET199453  Bloomeria crocea var. crocea J. R. Glen 1957-5-3 Orange 0.5 mile from the San Bernardino county line. 3 miles east of Olinda along Carbon Canyon road 201 Comment
  RSA48920  Bloomeria crocea var. crocea Philip A. Munz 1949-5-26 13394 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains 732 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
  RSA735168  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35281 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCD56817  Bothriochloa barbinodis F. M. Reed 1926-4-10 6583 Orange North of Dana Point. Comment
  UCR205990  Bothriochloa barbinodis Adrian Wolf 1997-5-20 009 Orange South Coast, northwest of city of Laguna Beach, 100 ft from Pine Crest Drive reservoir, upslope bank adjacent to the road 152 Comment
  UCR140887  Bougainvillea glabra Robert DeRuff 1988-9-16 348 Orange Southern Coast, Newport Beach, Newport Back Bay, path between 23rd Street and Mariners Drive 9 Comment
  UCR218460  Bougainvillea glabra Robert DeRuff 2008-1 348 Orange South Coast, Upper Newport Bay, between Mariner's Drive and 23rd St. 12 Comment
  CAS-BOT-BC95425  Bowlesia incana Helen D. Geis 1902-1-1 526 Orange Santiago Creek Comment
  UCR239225  Brachypodium distachyon Fred M. Roberts 2012-4-24 7509 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  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
  IRVC18900  Brassica geniculata Fred M. Roberts 1981-7-8 316 Orange Calif. 74, 5.2km E San Juan Capistrano on south side of road, Rancho Mission Viejo 100 Comment
  UCR228806  Brassica geniculata Dick Newell, Don Millar 2011-5-10 149 Orange Peninsular Range; Santa Ana Mtns., along MWD service road between Outdoor Education Center and Fremont Canyon, 0.2 mi. above Peters Cyn. Rd. 193 Comment
  CLARK-A1528-982  Brassica nigra Patricia A. Andrews 1975-6-26 5915 Orange Capistrano Bay Beach 9 Comment
  IRVC1039  Brassica nigra C. Duncan 1965-4-20 Orange San Juan Capistrano Comment
  IRVC20785  Brassica nigra Fred M. Roberts, S. L. Fritzke 1982-4-2 468a,b,c Orange hills, 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station, N of Del Avion, Laguna Niguel 100 Comment
  RSA0066348  Brassica nigra A. C. Sanders, Fred M. Roberts 2008-3-25 34567 Orange Peninsular Range; Santa Ana Mtns.: Saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  UCR241907  Brassica nigra Fred M. Roberts 2012-4-24 7526 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  UCR102002  Brassica rapa B. G. Pitzer 1997-3-25 3036 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  RSA5578  Brassica rapa C. B. Wolf 1932-6-28 s.n. Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 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
  SEINET7907479  Brassicaceae G. A. Wojciechowski 1967-1 Orange San Juan Capistrano beside rd 610 Comment
  RSA584704  Brickellia nevinii Fred M. Roberts, Carol A. Roberts 1989-5-11 4352 Orange Gypsum Canyon, 2.9 km WSW Sierra Peak, about 3.3km S by road of Santiago Canyon Road. 189 Comment
  RSA655022  Brodiaea filifolia David E. Bramlet 1998-5-21 2625 Orange On slope adjacent to a tributary of Segunda Deshecha Canada, approximately 610m north of the existing access road (Telaga Valley Dr.) and 2.9 km north of Avenida Pico., The site is approximately 1.93 km west of Cristianitos Canyon & 640m west of Wilson Camp Road. 201 Comment
  RSA734118  Bromus carinatus A. C. Sanders 2008-4-29 35144 Orange Peninsular Range;Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridgeon road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  SD241666  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-4-8 34751 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Road, above Dripping Springs Loop Road (El Toro 7.5'Q) 456 Comment
  SEINET3921870  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 (7S06) north into Aliso Canyon.; 0 366 Comment
  UCR138441  Bromus carinatus R. E. Riefner Jr. 2000-6-22 20 575 Orange Santa Ana Mountains, North Ranch Policy Plan Area, NE property, along National Forest boundary, at powerline 756 Comment
  JEPS71162  Bromus hordeaceus L. M. Booth 1932-5-12 1023 Orange Newport Bay 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
  UCR190962  Bromus hordeaceus A. C. Sanders, Fred M. Roberts 2008-4-22 35041 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
  RSA650444  Bromus hordeaceus Howard Cook 1948-5-15 14 Orange Collected on highway 14, about 8 miles east of Fullerton. 91 Comment
  RSA696603  Bromus hordeaceus Rankin s.n. Orange Santa Ana. Comment
  UCR242753  Bromus madritensis Fred M. Roberts 2012-5-10 7581 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
  RSA0127416  Bromus madritensis subsp. rubens Fred M. Roberts 2016-3-17 8011 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  UC149788  Bromus madritensis subsp. rubens H. M. Hall May, 1902 3283 Orange along Santa Ana River Santa Ana River 182 Comment
  CAS-BOT-BC161818  Bromus rubens Ira L. Wiggins 1966-3-5 20507 Orange Along Highway S-18, about 4.5 miles east of Laguna Beach. Comment
  POM363952  Bromus rubens Alice Jane Merritt 1893-05 s.n. Orange Santa Anna [Santa Ana] Comment
  UCD59710  Bromus sterilis Scott D. White; Noel Davis 1998-5-21 6548 Orange Santa Ana Mtn. foothills. Mission Viejo Area: Aliso Creek watershed, east of El Toro Rd., just N of jtn. w/ Valley Vista Wy. Large proposed subdivision called 'Saddleback Meadow. 304 Comment
  RSA625804  Bromus sterilis Scott D. White, Noel Davis 1998-5-21 6548 Orange Santa Ana Mountains, Mission Viejo Area: Aliso Creek watershed, east of El Toro Road just N of junction w/ Valley Vista Way., 33?40.5'N, 117?37'W. 305 Comment
  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
  POM318767  Cakile maritima var. maritima Patricia Wilder Andrews 1972-6-27 5386 Orange Capistrano Beach. Drainage area: Pacific Ocean. 3 Comment
  RSA737894  Calandrinia breweri R. E. Riefner 2008-5-15 08 -82 Orange Irvine Ranch Reserve, N Irvine Ranch, eastern Fremont Canyon area, Black Star SCE road. 549 Comment
  SBBG122652  Calandrinia breweri A. C. Sanders, F. M. Roberts, A. O'Neal 2008-5-9 35314 Orange Weir Cyn, along fire line/bulldozer cut, ca. 1.5 mi E of Walnut Cyn Reservoir 346 Comment
  UCR113458  Calandrinia breweri R. E. Riefner Jr. 2000-4-15 20- 374 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running north, but west of Black Star Canyon Rd. at powerline tower 520 Comment
  UCR249903  Calandrinia breweri R. E. Riefner Jr. 2008-3-5 08- 31 Orange Santa Ana Mountains, Irvine Ranch Reserve, North Irvine Ranch, south of Windy Ridge Road c. 0.5 mi from West Fork of upper Fremont Canyon 508 Comment
  RSA732079  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34548 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA734959  Calandrinia ciliata L. C. Hull 1934-3-7 s.n. Orange Laguna Hills Comment
  RSA743380  Calandrinia ciliata Fred M. Roberts 2008-4-9 6860 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  RSA799947  Callitriche marginata Justin M. Wood 2011-4-12 3660 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA594817  Calochortus albus Fred M. Roberts, Sandy Leatherman, Brian Leatherman 1994-4-24 4911 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  RSA0013958  Calochortus catalinae Fred M. Roberts 2008-5-7 6938 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
  RSA0125887  Calochortus catalinae Fred M. Roberts 2008-5-14 6970 Orange Lomas de Santiago: Loma Ridge, Bee Peak, 0.1 km W summit. 515 Comment
  RSA21235  Calochortus catalinae S. B. Bryant 1937-4-10 8506 Orange Rancho Santa Ana, Santa Ana Canyon, along road & roundtop to Horseshoe Bend. 244 Comment
  RSA539345  Calochortus catalinae Fred M. Roberts 1988-2-9 3781 Orange Lomas de Santiago: Loma Ridge, 1.5 km N Bee Survey Mark. 381 Comment
  RSA590955  Calochortus catalinae Fred M. Roberts, Cathy Novak, Dave Bontrager 1991-4-18 4770 Orange Santa Ana Mountains: c. 0.7 kilometers N junction Santiago Canyon Road and Live Oak Canyon Road, 7.7 kilomers WSW Modjeska Peak. 411 Comment
  RSA602120  Calochortus catalinae Scott D. White 1997-5-6 5047 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  RSA734347  Calochortus catalinae A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34639 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 396 Comment
  RSA777234  Calochortus catalinae Orlando Mistretta, Christine Mistretta 2010-4-23 5073 Orange Vicinity of Tonner Cyn. Along Southern Califonia Edison Transmission Line corridor (Segment 8, map sheet 83 per TRTP survey 2010) 338 Comment
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Feb 24 2018
  UCR144103  Calochortus catalinae Scott D. White 2003-3-21 8795 Orange Peninsular Range/Santa Ana Mtns, Foothills [above] Rancho Mission Viejo; E-facing slopes above an unnamed tributary to San Juan Creek 183 Comment
  UCR192502  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
  UCR203898  Calochortus catalinae R. E. Riefner Jr. 2008-4-15 08- 71 Orange Irvine Ranch Reserve, north Irvine Ranch, Fremont Canyon Conservation Easement, west Fremont Canyon, lower Coalmine SCE Road 301 Comment
  UCR215276  Calochortus catalinae Fred M. Roberts 2008-5-7 6938 Orange Lomas de Santiago, Limestone Ridge between Dripping Spring and Limestone Canyon, 3.5 km NW of Bolero Lookout and 1.7 km east of Bee Peak. Irvine Ranch Conservancy 481 Comment
  CAS-BOT-BC483376  Calochortus invenustus L. R. Abrams 1901-6-15 1848 Orange Mt. Santiago Comment
  RSA561495  Calochortus plummerae Steve Boyd, Kyle Boyd 1992-7-9 7655 Orange Northern Santa Ana Mountains, along the main crest of the range, north of Pleasants Peak and south of Oak Flat (aka Oat Flat), 1.5 miles south of junction of Main Divide and Skyline Roads. Comment
  RSA649686  Calochortus plummerae R. E. Riefner 2000-7-8 20 -625 Orange NCCP North Ranch Policy Plan Area. On ridgeline overlooking upper W fork of Fremont Canyon; located E of Main Divide Road and SE from Windy Ridge cypress forest. 438 Comment
  RSA16422  Calochortus splendens Percy C. Everett 1935-5-19 6874 Orange Santa Ana Mountains, Baker Canyon, West Ladd Truck trail. 305 Comment
  RSA627760  Calochortus splendens Scott D. White 1998-3-24 6233 Orange University of California, Irvine Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 24 Comment
  RSA68633  Calochortus splendens Frank W. Peirson 1924-5-31 4669 Orange 5 miles southeast of Laguna Beach. Comment
  UCR192096  Calochortus splendens A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35291 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR223435  Calochortus splendens Dick Newell, Don Millar 2011-3-1 075 Orange Peninsular Range; Santa Ana Mtns. Foothills, MWD road east of outdoor education property, 1.6 mi. NW (312 deg. ) of Irvine Lake dam 258 Comment
  CAS-BOT-BC492702  Calochortus splendens Le Roy Abrams 1901-6-16 1798 Orange Trabuco Canon Comment
  CAS-BOT-BC492703  Calochortus splendens Le Roy Abrams 1901-6-15 1798 Orange Trabuco Canon Comment
  CAS-BOT-BC132660  Calochortus weedii var. intermedius John Thomas Howell 1927-7-3 2636 Orange Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
  RSA0014077  Calochortus weedii var. intermedius Fred M. Roberts 2008-5-27 7003 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., c.a. 0.2km beyond Hicks Cyn., Gate, 2.2km WNW Bee Peak, Irvine Ranch conservancy 213 Comment
  RSA68621  Calochortus weedii var. intermedius Frank W. Peirson 1927-6-20 7350 Orange Site for botanical garden (Rancho Santa Ana) Comment
  RSA741726  Calochortus weedii var. intermedius R. E. Riefner 2008-6-11 8 -150 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fremont Canyon, Coalmine SCE Rd. 366 Comment
  RSA746523  Calochortus weedii var. intermedius R. E. Riefner 2008-6-3 8 -141 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, E fork Fremont Canyon, Black Star SCE Rd. 641 Comment
  RSA753166  Calochortus weedii var. intermedius D. E. Bramlet 2008-5-9 4263 Orange Ridgeline between the upper two tributaries of Wier Cyn. 1.2km east of S. Serrano Ave & 1.3km west of Gypsum Cyn. 330 Comment
  RSA773557  Calochortus weedii var. intermedius Fred M. Roberts 2008-6-3 7027 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.5 km NE of Rattlesnake Reservoir spillway and 2.6 km ENE Bee Peak 258 Comment
  SBBG19551  Calochortus weedii var. intermedius H. F. Copeland 1938-6-29 1574 Orange back of Laguna Beach Comment
  SD134560  Calochortus weedii var. intermedius Craig Reiser 1992-6-12 Orange Laguna Niguel, west-facing slope 100 yards north of northeast corner of intersection of Crown Valley Parkway and Pacific Island Drive. Openings in chaparral. (IPB 3/08) Comment
  UCR119314  Calochortus weedii var. intermedius R. E. Riefner Jr. 2000-6-26 20- 581 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running N from Baker Canyon Road 305 Comment
  RSA506434  Calochortus weedii var. weedii Kathy Harper 1988-7-16 s.n. Orange Cleveland National Forest, on Hwy 74 near El Cariso. SE of Hwy Comment
  RSA16426  Calycadenia tenella Percy C. Everett 1935-5-19 6878 Orange Santa Ana Mts, Baker Canyon, W Ladd Truck Trail 305 Comment
  RSA255489  Calycadenia tenella Gerald D. Carr 1971-7-14 585 Orange 2.5 mi NE of San Juan Capistrano on Hwy 74 69 Comment
  RSA606369  Calycadenia tenella Jon E. Keeley 1994-6-1 25365 Orange First year burn, Starr Ranch 390 Comment
  POM201721  Calystegia macrostegia subsp. cyclostegia L. M. Booth 1932-5-19 1081 Orange Newport Bay Comment
  CAS-BOT-BC221302  Calystegia macrostegia subsp. intermedia John Thomas Howell 1927-6-9 2462 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC221303  Calystegia macrostegia subsp. intermedia B. Pitzer; M. Georgiady 1997-4-5 3079 Orange San Joaquin HIlls: Crystal Cove State Park, along No Dogs Trail to just below intersection with Poles Trail 152 Comment
  RSA659546  Calystegia macrostegia subsp. macrostegia P. Shirokawa 1998-5-7 16 Orange Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  POM201638  Calystegia sepium subsp. limnophila L. M. Booth 1932-7-19 1279 Orange Bolsa Chica Comment
  POM201723  Calystegia sepium subsp. limnophila L. M. Booth 1932-6-28 1214 Orange Bolsa Chica Comment
  IRVC993  Calystegia soldanella D. W. Bryant 1965-3-27 Orange Pacific Coast Hwy and Beach Blvd. Huntington Beach Comment
  IRVC994  Calystegia soldanella E. Anderson 1965-4-25 Orange Huntington Beach State Park Comment
  UCR241074  Calystegia soldanella Dick Newell 2013-4-18 326 Orange South Coast, Bolsa Chica State Beach in Huntington Beach, on beach near Pacific Coast Hwy, 0.15 mi. west of Sea Point St., along bike path 5 Comment
  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
  RSA504  Camissonia bistorta J. T. Howell 1928-4-7 898 Orange Bee Canyon, Rancho Santa Ana 152 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
  UCR215311  Camissonia bistorta Fred M. Roberts 2008-3-27 6802 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near NE gate, 0.5 km west of Marine Institute, Dana Point Harbor 75 Comment
  SEINET8043936 Image available Camissonia californica Dick Newell, Don Millar 2015-1 403 Orange Peninsular Range; Santa Ana Mtsn. Foothills: Agua Chinon Wash, 1 mile NE of Portola and the 241 Toll Rd./Foothill Transp. Corridor. 245 Comment
  HSC16447  Camissonia cheiranthifolia subsp. suffruticosa B. Francis 1964-5-2 43 Orange Newport Beach Comment
  NY679591  Camissonia cheiranthifolia subsp. suffruticosa L. Abrams 1917-6-23 6576 Orange Balboa. Comment
  POM201888  Camissonia cheiranthifolia subsp. suffruticosa L. M. Booth 1932-5-25 1114 Orange Balboa Island, Newport Bay. Comment
  RSA357147  Camissonia cheiranthifolia subsp. suffruticosa Robert F. Thorne 1975-4-6 45584 Orange Head of Newport Bay. Comment
  RSA454059  Camissonia cheiranthifolia subsp. suffruticosa Josephine Derigo 1941-7-5 s.n. Orange Laguna Beach. Comment
  RSA698256  Camissonia cheiranthifolia subsp. suffruticosa R. H. McArthur 1934-4-7 s.n. Orange Near outlet of Santa Ana River Comment
  RSA72264  Camissonia cheiranthifolia subsp. suffruticosa F. W. Peirson 1921-1-9 2351 Orange At sea level, Balboa. 0 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
  RSA598919  Camissonia ignota Scott D. White 1997-3-28 4847 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA678740  Camissonia micrantha Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1125 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 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
  SDSU3403  Camissonia strigulosa H. Wedberg 1958-3-29 179 Orange On Hwy 74, about 5.6 miles NE from the mission in San Juan Capistrano Comment
  LA83158  Camissoniopsis cheiranthifolia O. H. Kappler; 1943-5-16 412 Orange S of Huntington Beach Comment
  JEPS31488  Camissoniopsis cheiranthifolia subsp. suffruticosa L. M. Booth 1932-5-25 1114 Orange Balboa Island Newport Bay Comment
  CAS-BOT-BC160536  Camissoniopsis lewisii Peter H. Raven 1962-4-29 17490 Orange Lower edge of Cleveland National Forest just above San Juan Guard Station Comment
  JEPS31778  Camissoniopsis lewisii Alice King 1908-1 Orange Santa Ana Comment
  CAS-BOT-BC37125  Capsella bursa-pastoris Ira L. Wiggins 1966-2-5 20422 Orange Fairgrounds, Costa Mesa. Comment
  LA204276  Cardamine californica W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mts. (60deg ENE) 152 Comment
  POM369330  Cardamine californica var. integrifolia M. B. Dunkle 1933-3-5 3096 Orange San Juan Canyon, Comment
  POM8092  Cardamine californica var. integrifolia P. A. Munz, R. D. Harwood 1920-4-24 3740 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  JEPS53317  Cardaria draba L. M. Booth 1932-5-15 1197 Orange s of Huntington Beach Comment
  RSA23656  Cardaria draba E. R. Johnson 1939-4-25 9496 Orange Santa Ana Canyon, Rancho Santa Ana, along Santa Fe RR tracks. 122 Comment
  RSA747710  Cardionema ramosissimum Fred M. Roberts 2008-4-16 6913 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8 km W Marine Institute, Dana Point Harbor. 60 Comment
  RSA732227  Carduus pycnocephalus A. C. Sanders, Fred M. Roberts 2008-4-22 35019 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  UCR210292  Carex A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37193 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  RSA788972  Carex barbarae Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49573 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  CAS-BOT-BC119005  Carex pellita Helen D. Geis 1902-4-1 s.n. Orange Santa Ana. Peat lands. Comment
  CAS-BOT-BC118490  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Unspecified Comment
  CAS-BOT-BC118498  Carex praegracilis Helen D. Geis 1902-1-1 505 Orange Near Santa Ana Comment
  CAS-BOT-BC118505  Carex praegracilis Helen D. Geis 1902-4-1 503 Orange Santa Ana Comment
  RSA542340  Carex praegracilis Fred M. Roberts, K. Keane 1988-5-25 3983 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark. 82 Comment
  CAS-BOT-BC118492  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana, Peat lands Comment
  CAS-BOT-BC118493  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana, Peat lands Comment
  SEINET7572179 Image available Carex praegracilis Helen D. Geis 1902-1 505 Orange [no precise loc] Comment
  SEINET8068417 Image available Carex praegracilis H. D. Geis 1902-1 s.n. Orange Orange County 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
  SEINET10447211  Carpobrotus aequilaterus David B. Dunn 1971-8-13 Dunn 18124 Orange Cultivated plants vicinity of Laguna Beach. Comment
  RSA640969  Carpobrotus chilensis L. C. Wheeler 1931-6-8 s.n. Orange Balboa Comment
  UCR220034  Carpobrotus chilensis Rebecca T. Vo 2010-6-1 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  RSA704426  Carpobrotus edulis Fred M. Roberts, David E. Bramlet 2004-7-30 6083 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Cristianitos Cyn. along Cristianitos Ck., 1.1 km SSW Gato Gate and 0.32km W Cristianitos Road. 73 Comment
  RSA748267  Carpobrotus edulis A. C. Sanders, Fred M. Roberts 2008-6-17 35470 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UC774887  Carthamus creticus E. L. Paddock 1941-7-21 Orange 1 mi ne Brea (on Union Oil Property, ridge road along south rim Tonner Canyon); Tonner Canyon Comment
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Aug 18 2010
  RSA602116  Castilleja affinis Scott D. White 1997-5-6 5044 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  UCR228782  Castilleja affinis Dick Newell, Don Millar 2011-5-3 143 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  UCR228789  Castilleja affinis Dick Newell, Don Millar 2011-5-10 155 Orange Peninsular Range; Santa Ana Mtns., on Lakeview Rd. above Irvine Lake dam 276 Comment
  UCSB12538  Castilleja affinis subsp. affinis Whittington, M. 1962-4-20 Orange Modjeska grade road; between Modjeska and Trabuco Canyon Comment
  RSA658309  Castilleja angustifolia Steve Teh, Marie Gabbard 1994-4-28 18 Orange Modjeska Grade Rd. 1/2 mile back on fire rd. Comment
  JEPS18961  Castilleja exserta subsp. exserta Rimo Bacigalupi with Francia Chisaki 1957-4-3 5787 Orange 6 mi s Irvine (along U.S. Hwy 101) 121 Comment
  UCR256945  Castilleja exserta subsp. exserta Naomi Fraga 2009-5-11 2717 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  UCSB9376  Castilleja exserta subsp. exserta Lloyd, Robert 1959-4-17 Orange Mt. Range Santa Ana; 10 mi S of W Corona; on the Oak Flats Fire Road 792 Comment
  UCSB47597  Castilleja exserta subsp. exserta Roberts, Fred 1980-5-3 Orange 0.1km NE Falcon Group Camp; Santa Ana Mtns 1012 Comment
  POM8764  Castilleja foliolosa P. A. Munz, R. D. Harwood 1920-4-24 3745 Orange Sierra [Freemont] Canyon, Santa Ana Mts. 366 Comment
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Sep 25 2011
  UCSB27031  Castilleja foliolosa Daniel, Dick 1964-3-28 Orange 5.1 miles northwest of junction of Silverado Canyon and Santiago Canyon Roads; up Silverado Canyon Road, about 10 miles west of Irvine Lake; 17 miles by air east of Orange Comment
  UCR137191  Castilleja minor subsp. spiralis M. B. Dunkle 1934-6-18 3989 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon 305 Comment
  UCR221459  Castilleja minor subsp. spiralis Dick Newell, Don Millar, Emily Sheehan 2010-8-3 30 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lakeside Rd. (dirt), 1/4 mile west of Black Star Canyon Rd. 259 Comment
  RSA429527  Caulanthus heterophyllus M. B. Dunkle 1935-3-3 4351 Orange San Juan Canyon. 457 Comment
  RSA749793  Caulanthus heterophyllus D. E. Bramlet 2008-4-1 4145 Orange Ridgeline in Upper Hicks Canyon, 162m S of the Haul Road. 346 Comment
  UCD114545  Caulanthus heterophyllus D. E. Bramlet 2008-3-31 4134 Orange Santa Ana Mountains. 305 m E of Upper Hicks Haul Road, in Trib to Limestone Cyn., 1 km S of Santiago Cyn. Road. 311 Comment
  UCR191365  Caulanthus heterophyllus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34623 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
  UCR266296  Caulanthus heterophyllus D. E. Bramlet 2008-4-3 4153 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
  UC1071518  Ceanothus A. Lewis Mar 1934 372 Orange w Mojeska Peak; Cleveland National Forest, Corona Quad. Comment
  RSA0029943  Ceanothus crassifolius Fred M. Roberts, Sandy Leatherman 2013-2-13 7721 Orange Santa Ana Mountains: Ridge south of central Santiago Canyon, near Joplin Trail, 3.7 km SE Modjeska (town). 800 Comment
  RSA786781  Ceanothus crassifolius Doris Bowers 1971-4-19 1687 Orange Black Star Canyon Indian Site 762 Comment
  UC1281316  Ceanothus crassifolius H. E. McMinn 1935-6-22 3921 Orange w Corona; Santa Ana Mts. Comment
  SBBG47469  Ceanothus crassifolius var. crassifolius M. B. Dunkle 1935-3-3 4354 Orange upper San Juan Cyn 762 Comment
  UCR139232  Ceanothus integerrimus Percy C. Everett 1935-6-18 7214 Orange Santa Ana Mtns., summit of Santiago Peak 1732 Comment
  SD255266  Ceanothus integerrimus Robert F. Thorne, E. W. Lathrop 1977-5-18 49742 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  LA44871  Ceanothus leucodermis W. Pequegnat; 1938-9-3 sn Orange Santa Ana Mountains, Ortega Rd 548 Comment
  SBBG4369  Ceanothus leucodermis M. Van Rensselaer 1941-5-30 1674 Orange summit of Ortega Hwy (St Hwy 74) 762 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
  SBBG45051  Ceanothus megacarpus var. megacarpus J. T. Howell 1927-6-26 228 Orange Claymine Cyn near Sierra Pk 701 Comment
  RSA25861  Ceanothus oliganthus Carl B. Wolf 1941-8-15 11158 Orange Along the Main Divide Motorway, just N. of head of Trabuco Truck Trail. 1220 Comment
  RSA790670  Ceanothus oliganthus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49699 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  UCR234147  Ceanothus oliganthus Dick Newell, Judy Booth 2012-5-6 249 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.2 miles NE of Maple Springs gate, Cleveland National Forest 695 Comment
  SD42370  Ceanothus oliganthus var. orcuttii P. C. Everett 1935-6-19 7234 Orange Santa Ana Mts., Main divide motorway junction with Tabuco Canyon Truck trail. 1219 Comment
  LA44892  Ceanothus palmeri W. Pequegnat; 1938-8-11 sn Orange Santa Ana Mountains, Santiago Peak 1734 Comment
  SBBG52714  Ceanothus papillosus C. Davidson 1977-5-18 5598 Orange Pleasant Pk, (on county line) 1219 Comment
  UC1071228  Ceanothus papillosus R. St. John 1931-2-24 187 Orange Los Pinos Peak Elsinore Quad. Comment
  UC1071231  Ceanothus papillosus A. Lewis May 1934 424 Orange Trabucco Canyon Cleveland National Forest, Elsinore Quad. Comment
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Nov 15 2008
  CLARK-A1528-3899  Ceanothus papillosus subsp. roweanus John C. Roos 1960-5-30 Orange Santa Ana Mountains 1066 Comment
  PASA2514  Ceanothus sorediatus Frank W. Peirson 1925-4-11 Orange Silverado Canyon, Santa Ana Mountains 914 Comment
  LA93871  Ceanothus spinosus D. S. Verity; Fred Lang 1974-2-20 sn Orange hills behind South Laguna Comment
  UCSB48024  Ceanothus spinosus Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.: San Juan Canyon, hwy. 74, 3.7km E San Juan Guard Station 114 Comment
  UCR263637  Ceanothus tomentosus Ed Kentner 2012-5-22 139 Orange Santa Ana Mountains, Irvine Ranch Conservancy, Fremont Canyon Reserve north side of windy Ridge Road 500 Comment
  SEINET3870453  Cedrus deodara Pamela G. Jones 1967-9-11 31 Orange Yorba Linda City Park.; 0 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
  RSA724040  Cenchrus longispinus R. E. Riefner 2004-8-27 4 -387 Orange City of Irvine; San Diego Creek at Woodbridge High School, S of intersection of Barranca Rd. and West Yale Loop Rd. 27 Comment
  IRVC14319  Centaurea melitensis L. T. McHargue 1970-6-22 Orange UCI campus, Irvine Comment
  IRVC576  Centaurea melitensis J. B. Anderson 1966-4-22 611 Orange Upper Los Trancos Canyon. San Joaquin Hills Comment
  RSA643428  Centaurea melitensis R. D. Goeden, D. W. Ricker 1965-6-21 s.n. Orange Pacific Coast: Dana Point 76 Comment
  RSA0040038  Centranthus ruber Anonymous 1933-10-13 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC123546  Centromadia parryi subsp. australis David Daniels Keck 1933-9-29 2537 Orange Seal Beach. Comment
  CAS-BOT-BC288845  Centromadia parryi subsp. australis David D. Keck 1932-9-30 1897 Orange Ca 5 miles S of Santa Ana on road to Newport Beach Comment
  SD134529  Centromadia parryi subsp. australis Craig Reiser 1991-3-19 Orange Newport Beach Bay, W of Delhi Channel Comment
  SD80940  Centromadia parryi subsp. australis James Henrickson 1970-7-25 5071 Orange 3 miles northeast of Huntington Beach at far northern end of Bolsa Chica Salt Marsh near pasture; along channel south of Flood Control channel (mak 10/07) 0 Comment
  UC1424929  Centromadia parryi subsp. australis C. W. Tilforth 1975-9-6 1047 Orange ne shoreline Upper Bay; Newport Beach Comment
  UC89014  Centromadia parryi subsp. australis unknown Orange Westminster Comment
  UC935684  Centromadia parryi subsp. australis David D. Keck 1933-9-29 2537 Orange Seal Beach Seal Beach (alkaline fields adjoining tidelands) Comment
  UCR237987  Centromadia parryi subsp. australis D. E. Bramlet 2008-9-17 4306 Orange South Coastal Plain, Upper Newport Bay, West Mesa, 76 m east of Irvine Ave. & 305 m south of University Dr. 20 Comment
  UCR256519  Centromadia parryi subsp. australis R. E. Riefner Jr. 2005-6-29 05- 516 Orange South Coast, City of Costa Mesa, Talbert Regional Park, immediately west of Discovery Dr. at Balboa Blvd., east of Santa Ana River 8 Comment
  UCR191437  Cerastium glomeratum A. C. Sanders, Fred M. Roberts 2008-4-8 34731 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCSB72266  Cerastium glomeratum Roberts, 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
  LA47748  Cercocarpus betuloides W. E. Pequegnat; April 1937 49 Orange Santa Ana Mountains, Above Glen Ivy 396 Comment
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Jan 26 2015
  RSA16975  Cercocarpus betuloides E. R. Johnson 1936-4-10 7766 Orange Santa Ana Canyon, Rancho Santa Ana, toward the head of box canyon to the north of the pear orchard. 168 Comment
  RSA599184  Cercocarpus betuloides Scott D. White 1997-3-28 4827 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA739229  Cercocarpus betuloides Keith E. Hoffmaster 1932-4-17 502 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  RSA787496  Cercocarpus betuloides var. betuloides Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49704 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SD247726  Cercocarpus betuloides var. betuloides R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49704 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UCD170238  Cercocarpus minutiflorus K. M. Meyer; A. Townesmith 2007-3-10 5 Orange Cleveland National Forest, 0.5 mi. N Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mtns., ridge top. 917 Comment
  POM351653  Chaenactis artemisiifolia M. B. Dunkle 1934-6-18 3978 Orange San Juan Canyon 457 Comment
  RSA648190  Chaenactis artemisiifolia Karl Price 1988-5-7 37 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  UCR193348  Chaenactis artemisiifolia A. C. Sanders 2008-5-28 35437 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR274177  Chaenactis artemisiifolia Dick Newell, Don Millar 2016-5-24 426 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Merkel Spur Trail at Limestone Ridge Road, 0.13 mile south of Cactus Canyon Road 417 Comment
  SEINET2028646 Image available Chaenactis glabriuscula Lawrence M. Booth 1932-5-18 1056 Orange Newport Bay Comment
  UCR92597  Chaenactis glabriuscula F. M. Reed 1926-4-14 5290 Orange South Coast, Arch Beach, near South Laguna 15 Comment
  RSA731964  Chaenactis glabriuscula A. Sanders, Fred M. Roberts 2008-4-22 34989 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mi. NE of Rattlesnake Reservoir. 213 Comment
  SFV17359  Chaenactis glabriuscula var. glabriuscula J. N. Hogue, J. D. Dilley, D. L. Bishop 1998-4-9 103 .1 Orange Santa Ana Mountains San Juan Canyon at San Juan Hot Springs. Just inside western boundary of Cleveland National Forest. 213 Comment
  UC450954  Chaenactis glabriuscula var. glabriuscula F. A. MacF. 1931-3-1 2969 Orange Laguna Beach Comment
  JEPS52361  Chamaesyce serpyllifolia Alice King May 1908 Orange New Port Comment
  RSA797479  Chamaesyce supina R. F. Thorne 1977-11-21 49992 Orange Santa Ana Mountains: San Juan Canyon about 2 miles above San Juan Fire Station Comment
  SEINET3869782  Cheilanthes clevelandii M. D. Windham 1998-3-31 98 -088 Orange Along tributary of Hot Spring Canyon in the Santa Ana Mts. ca. 3.00 km SE of Crow Spring. Cleveland N.F. Canada Gobernadora Quad ( 7 1/2 min. ).; 0 320 Comment
  RSA631393  Cheilanthes covillei Valerie L. Soza, LeRoy Gross 1999-6-7 478 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  POM9098  Cheilanthes newberryi P. A. Munz, R. D. Harwood 1920-4-24 3763 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  HSC4362  Chenopodium album D. W. Snell 1964-3-22 4 Orange 0.5 mi. S of Imperial Hwy., 1 mi. W of Yorba Linda. Comment
  RSA725963  Chenopodium album R. E. Riefner 2006-10-8 06 -484 Orange South Coast: Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Rd. 51 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
  UC582777  Chenopodium album P. A. Munz 1936-6-30 14175 Orange 5 mi s Garden Grove Comment
  UCR179762  Chenopodium album R. E. Riefner Jr. 2006-10-8 06- 484 Orange South Coast, Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Road 51 Comment
  CDA25888  Chenopodium ambrosioides Mark A. Elvin, B. S. Nerhus 2006-11-4 5246 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  IRVC20219  Chenopodium ambrosioides Fred M. Roberts 1982-10-1 821 Orange Niguel Hill, west flank, 2.7km NNE Aliso Peak; 0.9km WNW Alicia Fire Station, Laguna Niguel 157 Comment
  IRVC21735  Chenopodium ambrosioides Fred M. Roberts 1984-10-18 1423 Orange San Juan Canyon, 2.5km ENE San Juan Guard Station; 4.0km WNW Sitton Peak, Santa Ana Mountains 310 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
  POM225240  Chenopodium ambrosioides P. A. Munz 1936-6-30 14172 Orange 5 miles south of Garden Grove. Comment
  RSA734759  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-5-6 35218 Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  RSA751427  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-7-3 35676 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor. 365 Comment
  UCR192993  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-5-6 35218 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  SD136861  Chenopodium berlandieri Steve Boyd, Tim Ross 1994-9-14 8362 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Aliso Canyon. 341 Comment
  RSA234491  Chenopodium berlandieri var. sinuatum James Henrickson 1970-8-29 5304 Orange 3 miles NW of Huntington Beach; north end of Bolsa Chica Marsh near pasture. 0 Comment
  RSA725467  Chenopodium berlandieri var. sinuatum Fred M. Roberts, Megan Lulow 2007-7-30 6551 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  UCR27598  Chenopodium macrospermum John C. Roos 1949-10-1 4681 Orange South Coast, Doheny Beach 0 Comment
  IRVC21667  Chenopodium multifidum R. L. Allen 1983-6-1 A649 Orange southwest of I5 at Sand Canyon Ave. near old dwellings on Burt Lane; a naturalized weed. Irvine Comment
  UCR192988  Chenopodium multifidum A. C. Sanders, Fred M. Roberts 2008-6-17 35476 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 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
  IRVC385  Chenopodium murale McGuire 1965-4-17 Orange Corona del Mar. Newport Beach Comment
  IRVC395  Chenopodium murale E. P. Cowper 1965-5-6 Orange Corona del Mar High School. Newport Beach Comment
  UCR209345  Chenopodium murale Fred M. Roberts 2008-4-15 6901 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, east ridge, Conservation Trail, 1.6 km east-southeast of Rattlesnake Reservoir Dam and 2.7 km west-southwest of Bee Peak, Irvine Ranch Conservancy 172 Comment
  IRVC25223  Chenopodium rubrum Roger Rienke 1988-10-30 2 Orange Newport Back Bay Newport Beach Comment
  RSA7043  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 0.5 mile above La Vida Springs. 244 Comment
  RSA0004894  Chorizanthe chrysacantha var. compacta F. M. Reed 1928-4-27 5700 Orange Beach bluff, between Laguna and Newport Comment
  CLARK-A1528-3600  Chorizanthe fimbriata John C. Roos 1965-6-16 Orange Comment
  RSA16337  Chorizanthe fimbriata Percy C. Everett 1935-6-18 7197 Orange Santa Ana Mountains, Main Divide Motorway Los Pinos Potrero. 915 Comment
  CAS-BOT-BC191253  Chorizanthe fimbriata var. fimbriata P. C. Everett 1935-6-18 7197 Orange Santa Ana Mts., main divide motorway Los Pinos Potrero 914 Comment
  CAS-BOT-BC252772  Chorizanthe parryi var. fernandina Helen D. Geis 1902-1-1 541 Orange Santa Ana Comment
  CAS-BOT-BC252773  Chorizanthe parryi var. fernandina Helen D. Geis 1902-1-1 s.n. Orange Unspecified Comment
  UCR146880  Chorizanthe procumbens Kathleen Stockwell 2000-6-18 s.n. Orange South Coast, Dana Point Headlands 61 Comment
  CAS-BOT-BC255248  Chorizanthe staticoides Clare B. Hardham 1962-4-5 8954 Orange Hills above San Clemente Comment
  CAS-BOT-BC255251  Chorizanthe staticoides P. C. Everett 1935-4-29 6711 Orange Santa Ana Canyon, 7/10 mile W of Esperanza 152 Comment
  POM201761  Chorizanthe staticoides L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  RSA13173  Chorizanthe staticoides Percy C. Everett 1935-4-29 6711 Orange 7/10 of a mile west of Esperanza, Santa Ana canyon.. 152 Comment
  RSA542530  Chorizanthe staticoides Fred M. Roberts 1987-3-30 3325 Orange Lomas De Santiago: Lomas Ridge, east fork Upper Serrano Canyon, 3.1k SE Bolero Lookout. 394 Comment
  RSA562719  Chorizanthe staticoides Steve Boyd, Tim S. Ross 1992-5-19 7422 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
  UC1618108  Chorizanthe staticoides Donald G. Nelson 1936-6-5 433 Orange Hills NE of Fullerton 91 Comment
  UCR192739  Chorizanthe staticoides A. C. Sanders, Fred M. Roberts 2008-5-6 35221 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  RSA0051264  Chorizanthe staticoides Keith E. Hoffmaster 1935-3-17 550 Orange Near El Toro (Trabuco rd). Comment
  IRVC22736  Chrysanthemum coronarium Fred M. Roberts 1985-5-13 1785 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  RSA782060  Chrysanthemum coronarium Mark A. Elvin 2003-2-23 2311 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UCR217464  Chrysanthemum coronarium Mark A. Elvin 2003-2-23 2311 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UC218029  Cirsium arvense Ethelbert Johnson 1922-6-12 Orange Xalisco; near Huntington Beach Comment
  RSA721121  Cirsium occidentale Anonymous s.n. Orange Lower Trabuco. Comment
  UCR109766  Cirsium occidentale var. californicum R. D. Goeden, Don W. Ricker 1965-6-21 s.n. Orange Dana Point 61 Comment
  POM202373  Cirsium occidentale var. occidentale L. M. Booth 1932-6-7 1165 Orange Newport Lagoon. Comment
  RSA0069236  Cirsium occidentale var. occidentale Fred M. Roberts, Lee Ann Caranza 2009-4-7 7141 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 60 Comment
  RSA234513  Cirsium vulgare James Henrickson 1970-7-25 5066 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March. 0 Comment
  UCSB48231  Cirsium vulgare Roberts, Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.5 km. N Crown Valley Parkway 49 Comment
  RSA769611  Clarkia E. W. Lathrop 1974-6-27 7408 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  CAS-BOT-BC172419  Clarkia bottae Munz; Street; Williams 1919-5-3 2647 Orange Santa ana river Canyon Comment
  RSA67766  Clarkia bottae G. R. Campbell 1951-5-30 16078 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest 152 Comment
  RSA734638  Clarkia bottae A. C. Sanders, Fred M. Roberts, Amber O Neal, D. E. Bramlet 2008-5-9 35307 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  UC373523  Clarkia bottae C. L. Hitchcock 1928-5-5 49 Orange mouth Santa Ana Canyon 150 Comment
  UC58859  Clarkia bottae W. C. Blasdale June 1891 Orange Santiago Canyon Comment
  CSUSB224  Clarkia dudleyana Nancy J. Moriarty 1973-5-27 730527 7 Orange Cleveland National Forest; 13.2 miles northwest of Interstate 5 on the Ortega Highway. Comment
  RSA493805  Clarkia dudleyana Jeri Hirshberg 1988-6-2 s.n. Orange Upper Gypsum Canyon. 274 Comment
  UC1280309  Clarkia epilobioides John M. Tucker 1941-5-30 258 Orange 2-3 mi e of w boundary Cleveland National Forest (Ortega Highway) Comment
  SBBG4969  Clarkia epilobioides J. M. Tucker 1941-5-30 258 Orange Ortega Hwy, 2 to 3 mi E of western boundary of Cleveland National Forest Comment
  RSA688983  Clarkia purpurea Fred M. Roberts, D. E. Bramlet 2003-4-10 5641 Orange Rancho Mission Viejo: Donna O Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  RSA17221  Clarkia purpurea subsp. quadrivulnera Carl B. Wolf 1936-6-22 8001 Orange Santa Ana Mts. Slopes of Modjeska Pk. at abouit the Head of Harding Canyon. 1220 Comment
  RSA698237  Clarkia purpurea subsp. quadrivulnera Lena Danner 1932-4-30 s.n. Orange Canyon beyond Modjeska. Comment
  RSA789218  Clarkia purpurea subsp. quadrivulnera Naomi S. Fraga, Duncan S. Bell 2009-5-11 2724 Orange Chiquita Trail 762 Comment
  RSA761795  Clarkia rhomboidea Robt. Allen 2003-6-22 12260 Orange West-facing upper slope of Santiago Peak, along North Main Divide Road,. circa 0.10 air miles northwest of Santiago Peak summit. Comment
  RSA0036754  Claytonia perfoliata Sandy Gray 1981-04 15 Orange Carbon Canyon Rd./Hwy 142. 3 miles west of Cavida near Sleepy Hollow, Chino - then east 3 miles.. Comment
  CAS-BOT-BC439946  Claytonia perfoliata subsp. mexicana Helen D. Geis 1904-4-1 742 Orange Silverado Canon [Canyon], Santa Ana Mountains Comment
  RSA276911  Claytonia perfoliata subsp. mexicana J. M. Miller 1978-3-18 708 Orange San Juan Capistrano; 3.9 miles E of Hwy 101 junction in the San Juan Creek Valley, Hwy 74. 76 Comment
  CAS-BOT-BC402194  Clematis lasiantha R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49689 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA787106  Clematis lasiantha Keith E. Hoffmaster 1932-4-17 500 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  SBBG52706  Clematis lasiantha C. Davidson 1977-5-18 5629 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  RSA386283  Clematis pauciflora M. B. Dunkle 1936-3-28 4715 Orange Silverado Canyon. Comment
  UC1201823  Clematis pauciflora R. W. 1933-4-1 Orange near Capistrano Comment
  POM499  Cleome isomeris D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  RSA752037  Cleome isomeris Fred M. Roberts 2008-3-27 6812 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 1, 0.5km W Marine Institute (Dana Point Harbor). 45 Comment
  UCR256937  Clinopodium chandleri Naomi Fraga, Duncan S. Bell 2009-5-11 2721 Orange Peninsular Range; Santa Ana Mountains, Chiquita Trail, Lion Canyon 762 Comment
  UCSB48362  Clinopodium chandleri Roberts, Fred 1982-4-18 Orange Santa Ana Mtns.: Upper Hot Springs Cyn., 0.1 km SW Falcon Group Camp; 2.0 km SE Los Pinos Peak 1075 Comment
  UCR166704  Cneoridium dumosum Scott D. White, Jennifer H. Jones 2005-3-31 10853 Orange South Coast, City of Laguna Beach. 549 Nyes Place. Proposed home site on c. 0.5 acre. 91 Comment
  SEINET8726617 Image available Cneoridium dumosum Lytton J. Musselman 1977-1 5469 Orange above Pacific Ocean at Laguna Beach near Nyes Road. Comment
  RSA699998  Collinsia bicolor L. C. Hull 1934-4-15 s.n. Orange Laguna Hills Comment
  UCR256916  Collinsia concolor Naomi Fraga 2009-5-11 2713 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  UCR86994  Collinsia concolor B. G. Pitzer, Stu Hemstreet 1992-5-27 1954 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  RSA542501  Collinsia heterophylla Fred M. Roberts, Karlin G. Marsh 1987-5-14 3446 Orange Upper Trabuco Canyon, Trabuco Canyon Trail, 2 km NNW Los Pinos Peak 856 Comment
  RSA542503  Collinsia heterophylla Bernard Jaroslow 1989-5-29 B- 27 Orange Santiago Canyon: Along the Morrow Trail out of Live Oak Canyon, below truck trail. Comment
  POM15031  Comarostaphylis diversifolia subsp. diversifolia Mary F. Spencer 1932-05 1971 Orange Canyon Prope. 61 Comment
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Nov 19 2013
  IRVC20432  Comarostaphylis diversifolia var. diversifolia Fred M. Roberts 1983-4-7 977 Orange Niguel Hill, above Pacific Island Dr., 1.7km SE Aliso Peak, 3.0km SSW Alicia Fire Station, Laguna Niguel 239 Comment
  IRVC29723  Conium maculatum Mark A. Elvin, Barry S. Nerhus 2006-11-4 5254 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA699124  Conium maculatum J. Vlahos 1934-6-9 s.n. Orange Santa Ana River by Fairview. Comment
  RSA643431  Convolvulus arvensis R. D. Goeden, D. W. Ricker 1965-6-15 s.n. Orange Santiago Blvd., Villa Park. 91 Comment
  CAS-BOT-BC285927  Conyza bonariensis Ira L. Wiggins 1965-10-24 20282 Orange Along Skyline Drive near intersection with Raymond Street, Fullerton Comment
  IRVC25167  Conyza coulteri Fred M. Roberts 1986-10-16 3157 Orange Irvine: Michelson Dr. between Carlson Ave. and San Diego Creek. southern coastal 8 Comment
  UC1536009  Cordylanthus maritimus subsp. maritimus C. W. Tilforth 1975-9-3 1040 Orange ne shoreline Upper Bay (both above and below high water mark); Newport Beach Comment
  UCR261705  Cordylanthus maritimus subsp. maritimus Dick Newell, Don Millar, Judy Booth 2015-4-15 408 Orange South Coast, city of Newport Beach, North Star Beach, 90 yards NE of Newport Aquatic Center bulding 3 Comment
  POM4589  Corethrogyne filaginifolia D. L. Crawford 1916-7-28 s.n. Orange Abalone Point Comment
  RSA528047  Cortaderia selloana A. C. Sanders 1990-10-6 10196 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  UCR68986  Cortaderia selloana A. C. Sanders 1990-10-6 10196 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  SEINET10541091  Cotoneaster pannosus Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7125 Orange In vicinity of Laguna Beach. 152 Comment
  RSA731928  Cotula australis Fred M. Roberts, Sandra Leatherman 2007-11-27 6682 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  CAS-BOT-BC287221  Cotula australis Ira L. Wiggins 1966-2-12 20439 Orange Orange grove on W side of State College Blvd, opposite Electra Way, Fullerton Comment
  CAS-BOT-BC287226  Cotula australis Ira L. Wiggins 1966-2-18 20451 Orange Orange grove on W side of State College Blvd, opposite Electra Way, Fullerton Comment
  SFV16199  Cotula coronopifolia R. K. Stachelek, B. Anderson 1995-3-23 50 Orange Newport Beach, Upper Newport Bay. Back Bay Drive, about 150m north of San Joaquin Drive. Along margins of salt marsh. Comment
  CAS-BOT-BC427769  Crassula connata Carl B. Wolf 1932-3-8 2673 Orange 1/2 mi. No. of Corona Del Mar. Borders of Newport Bay. 7 Comment
  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
  POM3815  Cressa truxillensis Lois Clency 1914-07 s.n. Orange Laguna. Comment
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Jul 3 2013
  SD39860  Cressa truxillensis Edith A. Purer 1932-9-1 4903 Orange Newport Beach Comment
  SEINET239007  Cressa truxillensis Unknown 1965-7-7 Orange Tustin township near Peters Canyon Channel E of Santa Ana Marine Corps Air Station (Tustin 7.5' Q.) 61 Comment
  UC536957  Cressa truxillensis Lawrence M. Booth 1932-5-18 1052 Orange Newport Bay Comment
  UCR109780  Cressa truxillensis R. D. Goeden, Don W. Ricker 1965-7-7 s.n. Orange Tustin township, near Peters Canyon Channel, east of Santa Ana Marine Corps Air Station 61 Comment
  IRVC22971  Cressa truxillensis Karlin G. Marsh 1986-8-26 Orange Flood Control Channel F-10 east of Redhill Ave.; dry banks of flood control channel. Tustin Comment
  RSA394757  Cressa truxillensis Albert J. Perkins 1917-11-3 s.n. Orange Santa Ana. Comment
  RSA697160  Cressa truxillensis Olive Van Meter s.n. Orange Newport Beach. Comment
  CDA4077  Crotalaria capensis A. C. Sanders, Mark A. Elvin 2003-10-12 27318 Orange Southern Coastal Slope; Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. Comment
  RSA0011252  Croton californicus Fred M. Roberts, Lee Ann Caranza 2006-10-25 6454 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  RSA480686  Croton californicus Josephine Derigo 1941-7-18 s.n. Orange Anaheim Comment
  RSA700002  Croton californicus Minor Warne 1934-3-10 s.n. Orange Limestone Canyon Comment
  UCR46565  Croton californicus B. G. Pitzer, D. C. Hawks 1986-10-21 0352 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi east of Santa Ana, in hills N and east of South Coast Gun Club on Jeffrey Road in Hicks Canyon 183 Comment
  RSA5806  Croton californicus var. tenuis C. B. Wolf 1932-6-28 3776 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA648656  Crypsis schoenoides R. E. Riefner 2000-8-23 20 -731 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  UCR197692  Crypsis schoenoides A. C. Sanders, Fred M. Roberts 2008-9-18 36076 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  RSA678720  Crypsis schoenoides Fred M. Roberts, Michelle Lee 2001-6-29 5505 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
  UCR150922  Cryptantha clevelandii Valerie Soza, LeRoy Gross 1999-6-7 479 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
  UCR209386  Cryptantha clevelandii Fred M. Roberts 2008-3-19 6782 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  IRVC256  Cryptantha intermedia S. Gilbert 1965-4-8 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA687518  Cryptantha intermedia Fred M. Roberts, D. E. Bramlet 2003-4-10 5651 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, ridge between Cristianitos Cyn. and Segunda Deshecha Canada, 1.54km W Gato Gate and 1.59km NW Edison substation. 262 Comment
  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
  RSA0127598  Cryptantha microstachys Fred M. Roberts, Diane Etchison 2016-3-22 8028 Orange Lomas de Santiago: west of Irvine Lake and north of Santiago Canyon Road, southeastern slope of Hill 1332 near toe of slope, about 1.9km S Irvine Lake Dam spillway. 263 Comment
  RSA732272  Cryptantha microstachys A. C. Sanders 2008-4-29 35127 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff s training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  IRVC18320  Cucurbita foetidissima J. W. Johnson 1976-8-2 Orange Upper [Newport] Bay. Newport Beach 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
  RSA262123  Cupressus forbesii E. W. Lathrop 1976-11-17 7406 Orange 4 miles west of Corona in Gypsum Canyon. North slope of Sierra Peak. 609 Comment
  RSA644959  Cupressus forbesii Richard E. Riefner 2000-1-18 20 -101 Orange NCCP North Ranch Policy Plan Area: Main Divide Road; top of Gypsum Canyon. 518 Comment
  RSA7200  Cupressus forbesii B. D. Stark 1933-3-17 4532 -D Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  UC1281345  Cupressus forbesii H. E. McMinn 1935-6-22 3926 Orange at head Clay Mine Canyon (n end of Santa Ana Mts.); Santa Ana Mts., Clay Mine Canyon Comment
  UC813435  Cupressus forbesii P. A. Munz and I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. 457 Comment
  UCR132994  Cupressus forbesii Adrian Wolf 2000-6-1 469 Orange Santa Ana Mtns., North Ranch Policy Plan Area, West Fremont Canyon 534 Comment
  UCR37801  Cupressus forbesii Steve Boyd, L. F. LaPre 1981-5-27 s.n. Orange Santa Ana Mtns., Northern end of the Santa Ana Mtns., along powerline road on ridges east of Weir Canyon & at the head of Gypsum Canyon. Comment
  SEINET10531085  Cupressus forbesii Carl B. Wolf 1935-1-2 Wolf 2320 Orange Santa Ana Mts. Slopes of Sierra Peak W of Claymine Canyon along road to peak. Upper Sonoran:- Adenostoma, Cypress. Open N.W. slope, reddish sandstone. 670 Comment
  LA29279  Cupressus macrocarpa Mary V. Hood; 1940-11-29 40- 193 k* a,b,c. Orange Laguna Comment
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Jan 12 2015
  POM17859  Cuscuta californica P. A. Munz 1923-7-8 7330 Orange Santa Ana River Canyon Comment
  RSA409761  Cuscuta californica George Price 1967-5-14 s.n. Orange Silverado Canyon Comment
  RSA648945  Cuscuta californica Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 74 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  UC1608264  Cuscuta californica Steve Boyd and Tim Ross 1992-5-19 7420 Orange San Mateo Canyon Wilderness Area, w edge of the wilderness along Lucas Canyon Trail from access roadd to Rancho Carrillo (7S06) n into Aliso Canyon Southern Santa Ana Mountains 365 Comment
  UCR230836  Cuscuta californica Dick Newell, Don Millar, Shara Harris 2011-6-21 185 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 207 Comment
  RSA409707  Cuscuta californica George Price 1967-5-17 s.n. Orange O'Neil Park Comment
  RSA542644  Cuscuta californica Fred M. Roberts, Kathy Keane 1988-5-25 3980 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Marker. 85 Comment
  POM6459  Cuscuta ceanothi P. A. Munz, Street, Williams 1919-5-3 2675 Orange Santa Ana River Canyon. Comment
  RSA503199  Cuscuta ceanothi G. D. Wallace, G. Cromwell 1966-4-16 457 Orange W edge of Cleveland Nat. For. about 5 mi. E of San Juan Capistrano, in the Santa Ana Mountains, in Hot Springs Canyon. Comment
  RSA303460  Cuscuta salina J. R. Shevock 1970-10-19 521 Orange Newport Back Bay. 3 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
  SD245332  Cuscuta subinclusa Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49627 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. Comment
  POM48696  Cycloloma atriplicifolium I. M. Johnston 1924-8-29 s.n. Orange Santa Ana River bed, between Aneheim and Santa Ana Comment
  RSA151149  Cycloloma atriplicifolium P. H. Raven 1961-10-15 16848 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing 61 Comment
  CAS-BOT-BC190298  Cynodon dactylon Ira L. Wiggins 1965-11-6 20353 Orange Kramer Oil Estates, near well No. 14, near end of county road to Rancho Santa Ana. Comment
  RSA0089222  Cynodon dactylon Fred M. Roberts 2014-4-21 7864 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  UCR246515  Cynodon dactylon Fred M. Roberts 2013-5-30 7778 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
  RSA0062647  Cynodon dactylon Jack D. Ingwersen 1962-5-30 s.n. Orange Anaheim. Comment
  CAS-BOT-BC114565  Cyperus eragrostis Carl B. Wolf 1932-6-13 3721 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  JEPS64090  Cyperus eragrostis L. M. Booth 1932-5-15 1201 Orange Costa Mesa Comment
  UC520019  Cyperus eragrostis Joseph Andorfer Ewan 1932-7-9 7985 Orange 4 mi. below Rincon; Santa Ana River Comment
  UCR174223  Cyperus eragrostis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33014 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  CAS-BOT-BC114318  Cyperus esculentus LeRoy Abrams 1901-6-1 1758 Orange Santa Ana River. Comment
  POM50486  Cyperus esculentus Helen D. Geis 561 Orange Santa Ana. Comment
  RSA599641  Cyperus esculentus Fred M. Roberts, P. Barrett, G. Bastillos 1995-7-25 4970 -B Orange Santa Ana Mountains: San Juan Canyon along San Juan Creek, San Juan Hot Springs, 0.8 kilometer SSW Juan Rancho Survey Mark. 214 Comment
  RSA5507  Cyperus esculentus Carl B. Wolf 1932-6-28 3761 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA751520  Cyperus involucratus A. C. Sanders, Fred M. Roberts 2008-8-7 35999 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA710404  Cyperus odoratus Fred M. Roberts 2005-10-3 6292 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
  SD234735  Cyperus odoratus R. E. Jr. Riefner 2005-10-27 05 728 Orange South Coast: Huntington Beach, Huntington Central Park near Goldenwest St. 0 Comment
  RSA0036013  Cyperus odoratus Robert F. Thorne 1977-11-21 50802 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  CAS-BOT-BC538087  Cyrtomium falcatum R. E. Riefner, Jr. 2012-1-16 12 -5 Orange City of Newport Beach, Corona Del Mar, beach area W of Morning Canyon Rd 1 Comment
  UCD169090  Cyrtomium falcatum R. E. Reifner Jr. 2011-7-1 11- 83 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1 mi from Poppy Avenue. 1 Comment
  UCD60300  Dactyloctenium aegyptium E. Wegener 1970-8-11 - 948 Orange Near Costa Mesa. Comment
  UCR174179  Datisca glomerata A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33019 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  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
  RSA33529  Datura wrightii N. C. Cooper 1942-11-9 886 Orange Balboa. Comment
  RSA743455  Datura wrightii Fred M. Roberts 2008-7-10 7075 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  SBBG54066  Datura wrightii Townsend 1939-12-19 167 Orange lower Telegraph Cyn Comment
  RSA699550  Daucus pusillus J. Vlahos 1934-04 s.n. Orange Lemon Heights Comment
  UCR223961  Daucus pusillus Fred M. Roberts 2008-4-9 6857 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
  RSA0048655  Daucus pusillus Keith E. Hoffmaster 1934-4-22 189 Orange Santa Ana Mts. [Orange or Riverside County] Comment
  RSA761936  Daucus pusillus Robt. Allen 2005-4-30 12497 Orange Caspers Wilderness Park, East Ridge Trail. 175 Comment
  CAS-BOT-BC299327  Deinandra fasciculata David D. Keck 1932-9-29 1898 Orange Ca. 5 mi. S. of Santa Ana on road to Newport Beach Comment
  RSA747715  Deinandra fasciculata Fred M. Roberts 2008-7-10 7064 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UC480895  Deinandra fasciculata D. L. Crawford 1915-9-1 504 Orange Huntington Beach Comment
  SBBG80998  Deinandra fasciculata G. Sampson 1985-4-23 85 -362 Orange dry ridge W end of Telegraph Cyn Comment
  SD5619  Deinandra fasciculata Ruth B. Randall 1926-1 123 Orange Comment
  SDSU4571  Deinandra fasciculata unknown 1940-5-20 3134 Orange South of county. Comment
  UCSB48381  Deinandra fasciculata Roberts, Fred 1982-5-22 Orange Laguna Niguel; Niguel Hill, just N of end of Pacific Island Dr., 1.6 km. ENE Aliso Peak 295 Comment
  RSA724056  Deinandra paniculata R. E. Riefner 2001-7-28 01 -375 Orange City of Laguna Beach, vicinity of Moulton Meadows Park. Comment
  UCR192230  Delphinium parryi A. C. Sanders, Fred M. Roberts 2008-5-6 35262 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
  RSA221084  Delphinium patens subsp. hepaticoideum E. W. Lathrop 1966-3-23 6107 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA697422  Dentaria integrifolia R. H. McArthur 1934-3-3 62 Orange Forks of Laguna Canyon. Comment
  RSA588707  Dicentra chrysantha Fred M. Roberts, Carol A. Roberts 1990-5-23 4643 Orange West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5km SE Los Pinos Peak. 756 Comment
  RSA0127418  Dichelostemma capitatum subsp. capitatum Fred M. Roberts 2016-3-17 8013 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  RSA165174  Dichelostemma capitatum subsp. capitatum Mark Parratt 1962-4-11 140 Orange Beach head at Corona del Mar, Santa Ana Mt. Range Comment
  UCSB12534  Dichelostemma capitatum subsp. capitatum Whittington, M. 1962-4-20 Orange Back Newport Bay about 250 yards south of salt works, Newport Comment
  RSA702763  Dichondra occidentalis Scott D. White, Michael Honer 2004-5-17 10389 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  UCR242698  Dichondra occidentalis Fred M. Roberts 2012-5-10 7571 Orange Coastal Plains and Basins; Coastal foothills Region, 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
  RSA184114  Dichondra repens I. L. Wiggins 1965-7-11 20362 Orange Vacant lot between State College Blvd. and Troy High School campus, Fullerton. Comment
  RSA683844  Digitaria sanguinalis Scott D. White, Matt Carlton 2003-11-20 9872 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 37 Comment
  RSA734607  Digitaria sanguinalis Keith E. Hoffmaster 1933-10-8 280 Orange Santa Ana Comment
  RSA0019265  Dimorphotheca ecklonis Fred M. Roberts 2004-6-16 6054 Orange San Joaquin Hills: Temple Hill, slopes above Hobo Cyn., adj. to 591 Balboa Ave.; 1.0km NNE Golf Island Survey Mark. 175 Comment
  SD247553  Diplachne fusca var. fascicularis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49632 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. Roadside ditch. Comment
  SD225118  Diplacus aurantiacus B. Pitzer 1996-4-30 2801 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (Pacific Coast Hwy). 14 Comment
  RSA0045521  Diplacus aurantiacus Jeanne Paxton 1934-4-21 s.n. Orange Modjeska Canyon. PR8. Comment
  UC856048  Diplotaxis tenuifolia I. M. Johnston 1918-5-4 1927 Orange Santa Ana Comment
  RSA735749  Distichlis spicata A. C. Sanders, Fred M. Roberts 2008-6-17 35495 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  UC971746  Distichlis spicata L. M. Booth 1932-5-25 1116 Orange Balboa Island, Newport Bay Comment
  IRVC24786  Draba cuneifolia var. integrifolia Karlin G. Marsh 1989-3-4 Orange Lomas Ridge, ridge between Hicks and Rattlesnake Canyons. Lomas de Santiago 210 Comment
  POM493  Draba cuneifolia var. sonorae C. F. Baker 1904-4-1 4126 Orange Anaheim. Comment
  UCR250855  Drymocallis glandulosa Dick Newell, Don Millar 2014-3-11 358 Orange South Coast, San Joaquin Hills, Laguna Canyon, Upper Laurel Canyon Trail, 0.24 mi. SE of 73 toll road over-crossing 207 Comment
  POM366539  Drymocallis glandulosa var. wrangelliana Christopher Davidson 1977-5-18 5633 Orange Santa Ana Mts. Cleveland National Forest, Falcon campground 1006 Comment
  RSA311324  Dryopteris arguta R. F. Thorne 1963-7-26 32847 Orange Near Beek's Spring; Tin Mine Canyon; Trabuco District, Santa Ana Mountains, Cleveland National Forest. 716 Comment
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Apr 25 2011
  SEINET9625424 Image available Dryopteris arguta M. D. Windham 1998-3-31 98 -091 Orange Along tributary of Hot Spring Canyon in the Santa Ana Mts. ca. 3.01 km SE of Crow Spring. Cleveland N.F. Canada Gobernadora Quad ( 7 1/2 min. ). 320 Comment
  UCR174212  Dryopteris arguta A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33039 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
  UCR231351  Dryopteris arguta A. C. Sanders, Kent Beaman 2011-9-27 39898 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  CAS-BOT-BC70836  Dryopteris arguta Carl B. Wolf; E. R. Johnson 1939-3-16 9492 Orange Santa Ana Mts., north side of Pleasant's Peak 1219 Comment
  IRVC127  Dryopteris arguta J. Morgan 1965-4-25 Orange Beacon Bay. Newport Beach Comment
  RSA659892  Dudleya Karl Price 1988-5-21 43 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  LA204783  Dudleya blochmaniae subsp. blochmaniae None; 1951-4-26 sn Orange Salt Creek Beach, Laguna Comment
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Nov 15 2013
  UCSB52867  Dudleya blochmaniae subsp. blochmaniae Roberts, Fred 1983-4-24 Orange Dana Point Headlands: south of Pacific Coast Hwy.; 0.5 km. NW Dana Point Harbor; 0.5 km. SSW Richard Henery Dana Sch. 85 Comment
  CAS-BOT-BC427990  Dudleya caespitosa John Thomas Howell 1927-6-9 2472 Orange North side Santa Ana Canon [Canyon] 152 Comment
  RSA423498A  Dudleya cymosa F. R. Fosberg 1921-6-21 748 Orange Silverado Canyon, Santa Ana Mts. Comment
  RSA629057  Dudleya cymosa subsp. ovatifolia Valerie L. Soza, LeRoy Gross 1999-6-7 473 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
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May 26 2016
  RSA12839  Dudleya edulis C. B. Wolf 1934-12-29 2316 Orange San Clemente. Comment
  RSA6895  Dudleya edulis B. D. Stark 1933-1-21 772 Orange San Clemente. 15 Comment
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Oct 23 2014
  UC933265  Dudleya edulis Reid Moran 1949-5-28 3258 Orange Aliso Canyon Laguna Beach Comment
  RSA637493  Dudleya lanceolata Valerie L. Soza, LeRoy Gross 1999-6-8 504 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  UCR175053  Dudleya lanceolata Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  UCSB42175  Dudleya lanceolata Roos, John 1965-6-16 Orange Dana Point Comment
  RSA542535  Dudleya multicaulis Fred M. Roberts, K. G. Marsh, G. A. Marsh 1988-4-26 3943 Orange San Joaquin Hills: Pelican Hill, 0.6 km SE summit. 172 Comment
  RSA552936  Dudleya multicaulis Fred M. Roberts 1989-5-7 4337 Orange Lomas De Santiago: 1.8km W Santiogo Reservoir Spilway, 4.0 km SW Sierra Peak. 213 Comment
  RSA682601  Dudleya multicaulis Scott D. White, Amanda Duchardt 2003-3-27 8856 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  SD115480  Dudleya multicaulis H. A. Wier 1978-4-14 Orange Southwest facing bank of canyon below access road, TRW facitilty, San Clemente. 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
  CAS-BOT-BC417040  Dudleya pulverulenta John Thomas Howell 1927-7-26 2840 Orange SE fork of Claymine Canyon, N. Santa Ana Mts. 304 Comment
  SD129960  Dudleya stolonifera Reid Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 124 Comment
  CAS-BOT-BC109744  Dudleya stolonifera Reid Moran 1950-5-24 3411 Orange Laguna Canyon, 1.5 miles above canyon mouth and 1.7 mile below Toro Road junction. 243 Comment
  POM277740  Dudleya viscida H. G. Rush 1948-5-14 102 Orange San Juan Canyon, 1/4 mile below San Juan Hot Springs 305 Comment
  SFV10403  Dudleya viscida M. L. Vincent 1963-7-8 435 Orange Roadside, 5 miles east of San Juan Capistrano on Highway 74. Comment
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Jan 6 2018
  UC1015403  Dudleya viscida Reid Moran 1931-1 5246 Orange San Juan Hot Springs Comment
  UCSB48031  Dudleya viscida Roberts, Fred 1980-7-7 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, 2.3 km. ENE San Juan Guard Station; 0.4 km. W of Bench Mark 1100 315 Comment
  RSA49  Echinochloa crus-galli Thos Howell 1927-10-29 787 Orange Near Cypress Station. 30 Comment
  RSA731944  Echinochloa crus-galli Fred M. Roberts, Sandy Leatherman 2007-11-27 6691 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  UCD60914  Echinochloa crus-galli Ira L. Wiggins 1965-11-7 20356 Orange Vacant lot between State College Blvd. and Troy High School campus, Fullerton. Comment
  UCD60916  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20261 Orange Roadside at west end of Orangethorpe Estates subdivision, near Atwood. Comment
  RSA365260  Echinochloa crus-galli C. B. Wolf 1932-6-13 3720 Orange Fullerton, Rose Drive 53 Comment
  RSA50  Echinochloa crus-galli Thos Howell 1927-7-18 424 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  JEPS45892  Echinochloa muricata Lawrence M. Booth 1932-7-25 1314 Orange Santa Ana River Channel near Coast Comment
  IRVC26902  Echinodorus berteroi D. E. Bramlet 1990-10-17 2063 Orange Delhi Channel at the intersection of Irvine Ave. & Mesa Drive, just W of Newport Beach Golf Course. 6 Comment
  UCR207559  Echinodorus berteroi O. F. Clarke 2004-7-19 s.n. Orange South Coast, Talbert Regional Park, Costa Mesa, at end of 19th St. 3 Comment
  UCR193433  Eleocharis macrostachya A. C. Sanders, Fred M. Roberts 2008-5-6 35240 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  UC306105  Eleocharis macrostachya D. L. Crawford 1916-3-10 727 Orange Santa Ana River Comment
  RSA603303  Eleocharis montevidensis Scott D. White, B. Leatherman 1997-1-12 5332 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca. 2 to 4 miles E of I-15 / Highway 74 junction. 46 Comment
  POM50482  Eleocharis montevidensis var. montevidensis Helen D. Geis 1902-1 507 Orange Santa Ana. Comment
  RSA708228  Eleocharis palustris Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6164 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
  POM1366  Eleocharis palustris Robinson, Crocker 1916-3-29 s.n. Orange Santa Ana Mountains: marshy regions in foothills Comment
  CAS-BOT-BC112211  Eleocharis rostellata John Thomas Howell 1927-7-21 2807 Orange Marsh, Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA723493  Eleusine coracana subsp. africana R. E. Riefner 2006-10-8 6 -474 Orange City of Irvine, San Diego Creek, between Alton Pwky. and 405 Fwy 51 Comment
  RSA735124  Eleusine coracana subsp. africana R. E. Riefner 2005-10-5 5 -718 Orange City of Yorba Linda, near Horseshoe Bend along the Santa Ana River. 102 Comment
  RSA735128  Eleusine coracana subsp. africana R. E. Riefner 2005-10-17 5 -724 Orange City of Los Alamitos, Arroyo Park, Heather St. at Lamson Ave. 10 Comment
  SEINET3129036  Elymus condensatus W. B. Crockatt sn Orange Capistrano Valley Comment
  UCR86996  Elymus hispidus B. G. Pitzer, Stu Hemstreet 1992-5-27 1968 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  RSA539340  Elymus multisetus Fred M. Roberts, Carol A. Roberts 1988-6-9 4078 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  RSA65  Elymus multisetus J. T. Howell 1927-6-8 53 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA539404  Emmenanthe penduliflora Fred M. Roberts, Carol A. Roberts 1988-6-2 4035 Orange Santa Ana Mountains: Silverado Canyon. Maple Springs Truck trail. 4.3 km above gate, 1.0 km WSW Bald Peak. 817 Comment
  UCR191425  Emmenanthe penduliflora A. C. Sanders, Fred M. Roberts 2008-4-8 34776 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  VVC254  Emmenanthe penduliflora P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  RSA407878  Encelia actoni B. Busenberg, Walter Wisura 1987-7-23 4171 Orange Newport Bay at jct of Back Bay Drive and San Joaquin Hills Road Comment
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Nov 11 2020
  CAS-BOT-BC131228  Encelia californica P. A. Munz 1920-4-11 3816 Orange Santa Ana River [Canon] Canyon near Rincon 304 Comment
  LA103538  Encelia californica Barry A. Prigge; 1983-12-17 5518 Orange Santa Ana Marsh and adjacent lowlands, southeasternmost part of oil field just N of Pacific Coast Highway between remnant Santa Ana River channel and dirt road 1 Comment
  POM202371  Encelia californica L. M. Booth 1932-5-12 1029 Orange Newport Bay. Comment
  RSA734682  Encelia farinosa A. C. Sanders, Fred M. Roberts 2008-5-6 35215 Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  RSA25947  Encelia farinosa var. farinosa E. R. Johnson 1941-5-16 s.n. Orange Rancho Santa Ana, River bottom near Old Peak Orchard. Comment
  UCR247893  Epilobium canum subsp. canum Fred M. Roberts 2012-7-18 7660 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
  RSA749047  Epilobium ciliatum A. C. Sanders, Fred M. Roberts 2008-8-7 35989 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UCR193492  Epilobium ciliatum A. C. Sanders, T. B. Salvato 2008-5-13 35359 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
  UCR195004  Epilobium ciliatum A. C. Sanders, Fred M. Roberts 2008-8-7 35989 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
  POM18128  Epilobium ciliatum subsp. ciliatum P. A. Munz 1923-9-7 7736 Orange Santa Ana Mountains: on trail from Holy Jim Canyon to Santiago Peak 1220 Comment
  RSA494  Epilobium ciliatum subsp. ciliatum J. T. Howell 1927-7-19 440 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA731933  Epilobium ciliatum subsp. watsonii Fred M. Roberts, Sandy Leatherman 2007-11-27 6677 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  UC1543090  Equisetum laevigatum Donald G. Nelson 1935-4-6 266 Orange e San Juan Capistrano (canyon 200-300 ft below main Hwy., ca. 4 mi from Summit); Santa Ana Mts., San Juan Canyon Comment
  SD245162  Equisetum telmateia subsp. braunii R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49599 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  SEINET3386349 Image available Eragrostis A. C. Sanders, Fred M. Roberts 2008-1 36091 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge. Comment
  UCR197700  Eragrostis A. C. Sanders, Fred M. Roberts 2008-9-18 36091 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  UC777943  Eragrostis mexicana subsp. virescens Frank W. Gould 1944-6-25 2362 Orange Garden Grove; Tournat Ranch Comment
  RSA554213  Eragrostis pectinacea Tim Hartz 1990-11-19 s.n. Orange Irvine, U. C. South Coast Field Station, near the U. C. Irvine Campus. Comment
  RSA233016  Eremocarpus setiger Christopher Davidson, G. Benny 1971-6-15 1553 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  RSA436022  Eremocarpus setiger Malcolm M. Rice 1927-9-4 1953 Orange San Juan Creek Bed, San Juan. Comment
  RSA0122944  Eriastrum sapphirinum subsp. dasyanthum Scott D. White, Michael Honer 2003-5-29 9430 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  UCSB48005  Eriastrum sapphirinum subsp. dasyanthum Roberts, Fred 1980-6-29 Orange Santa Ana Mtns., Viejo Canyon, 0.4 km. N Calif. Rte. 74; 2.2 km. ENE San Juan Guard Station 341 Comment
  CAS-BOT-BC514997  Eriastrum sapphirinum subsp. dasyanthum L. R. Abrams 1901-6-1 1791 Orange Trabuco Canyon Comment
  CAS-BOT-BC515000  Eriastrum sapphirinum subsp. dasyanthum H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  RSA0121313  Eriastrum sapphirinum subsp. dasyanthum P. A. Munz 1949-5-26 13374 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains 732 Comment
  UCD131585  Ericameria P. B. Kennedy 1925-1-12 10 Orange Irvine Ranch. Comment
  RSA292464  Ericameria palmeri var. pachylepis James Henrickson 1972-10-21 8076 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. Irrigated grassland eventually to be used for large Newport Beach Business Center. 46 Comment
  RSA54171  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  UCR145986  Ericameria palmeri var. pachylepis June Latting 1977-1-12 s.n. Orange Chino Hills, Tonner Canyon 213 Comment
  CAS-BOT-BC293092  Ericameria pinifolia John Thomas Howell 1927-10-22 3158 Orange On n. side of Santa Ana Canon [Canyon] 213 Comment
  IRVC20221  Ericameria pinifolia Fred M. Roberts 1982-10-14 829 Orange Temple Hill, 1.1km NNW Top of the World School, Laguna Beach 259 Comment
  SD127546  Ericameria pinifolia Reid Moran, Gordon Marsh and Jack Reveal 1977-6-13 24231 Orange Willow Canyon, tributary of Laguna Canyon 124 Comment
  UCSB52475  Ericameria pinifolia Roberts, Fred 1982-10-14 Orange Laguna Beach; Temple Hill, east flank, 1.0km NNW Top of the World School; 1.9km ESE Bench Mark 104 244 Comment
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Jan 25 2020
  SD98909  Erigeron foliosus Darley Howe 1976-6-4 4905 Orange Trubuco Canyon, Santa Ana Mountains. Comment
  POM49713  Erigeron foliosus var. stenophyllus L. R. Abrams 1901-6-16 1801 Orange Trabuco Canyon Comment
  UCR241046  Erigeron karvinskianus Robert DeRuff 2011-6-20 345 B Orange South Coast, Upper Newport Bay, along bay side of Back Bay Dr. below Eastbluff North 3 Comment
  RSA0127346  Erigeron sumatrensis Fred M. Roberts 2016-4-29 8049 Orange Lomas de Santiago: north of Santiago Canyon Road, southwest slope of hill marked 1332 on topo maps, just west of Irvine Lake, 1.6 km S Irvine Lake dam spillway and 0.8 km NW Irvine Lake Park. 335 Comment
  CAS-BOT-BC189071  Eriodictyon crassifolium John Thomas Howell 1927-6-26 2614 Orange Claymine Canon [Canyon], N Santa Ana Mountains Comment
  RSA171104  Eriodictyon crassifolium Robert F. Thorne 1963-7-26 32836 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest 854 Comment
  RSA763546  Eriodictyon crassifolium Doris Bowers 1971-4-19 1694 Orange Black Star Canyon Indian Site 762 Comment
  SJSU8878  Eriodictyon crassifolium H. E. McMinn 1935-6-22 3929 Orange Ridge above Clay Mine Canyon, N end of Santa Ana Mts Comment
  RSA0045584  Eriodictyon crassifolium Ken Eastman 1932-5-8 s.n. Orange Saddle Back Comment
  RSA0056305  Eriodictyon crassifolium James R. Shevock 1314 Orange Near Irvine Lake. 304 Comment
  RSA734652  Eriodictyon crassifolium var. crassifolium A. C. Sanders, Fred M. Roberts, Amber O Neal, D. E. Bramlet 2008-5-9 35298 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  RSA450871  Eriogonum cinereum Fred M. Roberts 1985-7-22 2058 Orange Irvine: MacArthur Blvd., 0.2km N Bonita Canyon Rd.; 1.6 km W UC Irvine campus. 15 Comment
  IRVC27014  Eriogonum cinereum Peter A. Bowler 2003-4-20 s.n. Orange UCI Arboretum Southern Coastal 15 Comment
  UCR103282  Eriogonum elongatum B. G. Pitzer, T. Tennant 1997-11-8 3369 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  POM201759  Eriogonum fasciculatum L. M. Booth 1932-5-18 1057 Orange Newport Bay Comment
  RSA393517  Eriogonum fasciculatum N. C. Cooper 1949-5-1 3943 Orange San Juan Canyon. 610 Comment
  RSA688981  Eriogonum fasciculatum var. fasciculatum Fred M. Roberts, D. E. Bramlet 2003-4-10 5639 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  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
  UC536912  Eriogonum fasciculatum var. fasciculatum Lawrence M. Booth 1932-7-27 1326 Orange Ocean Bluff, Corona del Mar Newport Beach, Corona del Mar Comment
  UC536920  Eriogonum fasciculatum var. fasciculatum Lawrence M. Booth 1932-5-18 1057 Orange Newport Bay Comment
  UCD105100  Eriogonum fasciculatum var. fasciculatum K. M. Meyer; A. Townesmith 2007-3-10 4 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  UCR239622  Eriogonum fasciculatum var. fasciculatum Fred M. Roberts 2012-4-24 7498 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  CAS-BOT-BC249945  Eriogonum fasciculatum var. foliolosum David D. Keck 1932-9-30 1903 Orange 2 mi. W. of Laguna Beach Comment
  RSA679229  Eriogonum fasciculatum var. polifolium Fred M. Roberts 2003-6-25 5941 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  SD255831  Eriogonum giganteum John Roos, Lucille Roos 1950-9-25 4992 Orange Rancho Santa Ana Botanic Garden, Santa Ana Canyon. 136 Comment
  CAS-BOT-BC253476  Eriogonum gracile Helen D. Geis 1902-3-1 s.n. Orange Santiago Canyon Comment
  CAS-BOT-BC253481  Eriogonum gracile John Thomas Howell 1927-7-16 2781 Orange Santa Ana Canyon 152 Comment
  UCSB56685  Eriogonum gracile Roberts, Fred 1982-9-20 Orange Santa Ana Mts; Chiquito Basin, San Juan Trail; 2.2km SW Blue Jay Campground; 3.0km S Los Pinos Peak 905 Comment
  RSA0061175  Eriogonum nudum subsp. pauciflorum Robt. Allen 2007-8-11 s.n. Orange NW-facing slope of Santiago Peak, along Main Divide Road. 1701 Comment
  RSA7476  Eriogonum nudum var. pauciflorum Carl B. Wolf 1933-8-24 5400 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  UC534937  Eriogonum parvifolium Susan G. Stokes 1932-8-29 21 Orange Doheney's Palisades, near San Clemente, San Diego Co. Comment
Read comments
Oct 21 2009
  RSA424463  Eriogonum parvifolium var. parvifolium E. S. Spalding 1923-12-1 s.n. Orange Opposite San Juan Capistrano Comment
  RSA13107  Eriogonum thurberi Percy C. Everett 1935-5-17 6866 Orange Rancho Santa Ana, Santa Ana Canyon, 1/4 mi. S of Orange County Plant Sanctuary. 122 Comment
  UC1618033  Eriogonum thurberi Donald G. Nelson 1935-6-2 365 Orange n. Brea (mouth of Brea Canyon, on Tonner lease); Brea Canyon, Tonner lease Comment
  SEINET7067534  Eriophyllum confertiflorum A. G. Vestal 1947-6-12 s.n. Orange Santiago Creek Valley north of Santa Ana. Coordinate datum: NAD27. UTM Zone 11, 418529mE, 373676mN. Comment
  UCSB47578  Eriophyllum confertiflorum Roberts, Fred 1980-4-3 Orange San Juan Canyon, Hwy. 74, bank across from entrance to Lower San Juan Picnic Ground, Santa Ana Mountains 410 Comment
  IRVC15140  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey 1968-7-9 380403 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  LA203539  Eriophyllum confertiflorum var. confertiflorum W. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  UC421696  Eriophyllum confertiflorum var. confertiflorum John Thomas Howell 1927-6-26 2592 Orange Claymine Canyon n. Santa Ana Mts., Claymine Canyon 243 Comment
  SEINET10890419  Erodium botrys Greg Gust, Leith Nye 2005-3-12 Gust 566 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UCR191017  Erodium botrys A. C. Sanders, Fred M. Roberts 2008-4-22 35034 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA590950  Erodium botrys Fred M. Roberts 1991-5-2 4774 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak. 110 Comment
  RSA0034727  Erodium cicutarium David Barrios 1991-5-1 6 Orange Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA658622  Erodium cicutarium L. Fountain 1966-2-18 14 Orange Near the entrance to Rancho Santa Ana, 6mi. east of Atwood. Comment
  RSA184106  Erodium moschatum I. L. Wiggins 1966-3-2 20486 Orange Fallow field near corner of Carolina Ave. and Imperial Hwy, 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
  SD136131  Erythranthe floribunda Dylan T. Hannon 1992-6-12 165 Orange Arroyo Trabuco, below Santa Margarita Parkway Bridge Comment
  RSA734963  Eschscholzia californica A. C. Sanders, Fred M. Roberts, A. O'Neal 2008-5-9 35308 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  SEINET7073414  Eschscholzia californica A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. 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
  OBI11817  Eschscholzia californica Carl B. Wolf 1935-5-19 6873 Orange Santa Ana Mts, Baker Cyn, W Ladd Truck Trl 305 Comment
  RSA312  Eschscholzia californica var. peninsularis J. T. Howell 1927-6-22 194 Orange Botany Garden, Rancho Santa Ana. Comment
  IRVC27878  Eucalyptus citriodora A. C. Sanders, Mark A. Elvin 2003-10-12 27312 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  UCR50912  Eucalyptus tereticornis Dave Goodward 1987-4-16 6 Orange Irvine Ranch, Boy Scout Camp in Peters Canyon, east of Tustin and c. 1 mi NE of the Irvine Blvd/Myford Road intersection 122 Comment
  RSA650645  Eucrypta chrysanthemifolia D. E. Bramlet 2000-4-7 2946 Orange This site is 30m south of the SCE maintenace road and 1km east of Weir Canyon. The locality is 1.5km west of Blind Canyon. 287 Comment
  RSA749485  Eucrypta chrysanthemifolia Fred M. Roberts 2008-3-25 6793 Orange Loma Ridge: Upper Hicks Cyn. near Haul Road, c.a. 4.4 km by road from Portola Pkwy. and 3.2 km ENE Rattlesnake Cyn. Reservoir. 269 Comment
  UCR281551  Eucrypta chrysanthemifolia Mitch Provance, Jeremiah George 2017-3-20 317- 125 Orange West Coyote Hills, Fullerton, west side of Gilbert Street on land previously occupied by oil fields. 138 Comment
  UC1607994  Eucrypta chrysanthemifolia var. chrysanthemifolia Donald G. Nelson 1935-7-6 224 Orange San Juan Canyon Comment
  POM346910  Euphorbia crenulata Marcus E. Jones 1926-3-13 s.n Orange Santa Ana Canyon. Comment
  RSA305657  Euphorbia misera B. Busenberg 1979-11-14 1925 Orange North of Marina parking lot, Dana Point Comment
  RSA311745  Euphorbia misera G. L. Webster 1966-12-11 4779 Orange S- facing slopes at top of bluffs, 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
  SD260945  Euphorbia misera R. E. Jr. Riefner 2012-12-5 12 587 Orange City of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road. 9 Comment
  RSA797403  Euphorbia peplus Keith E. Hoffmaster 1928-5-3 s.n. Orange Santa Ana. Comment
  RSA562743  Euphorbia peplus Steve Boyd, T. S. Ross 1992-5-19 7439 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  SEINET12142111  Euphorbia polycarpa J. F. Bright, Wyman, C. 1933-1 8091 Orange In Santa Ana Foothills Comment
  RSA431  Euphorbia spathulata J. T. Howell 1928-4-15 923 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA17459  Eustoma exaltatum Percy C. Everett 1936-9-29 8275 Orange Rancho Santa Ana, Santa Ana River Bottom, Santa Ana Canyon. 122 Comment
  RSA795235  Eustoma exaltatum Justin M. Wood, Dustin Ray 2010-10-1 2773 Orange Santa Ana Canyon: Santa Ana River plus/minus 1 mi downstream of Gypsum Canyon Bridge, just upstream of large commercial development. Near drain outflow from Flood Control Levee on south side of channel. 110 Comment
  RSA0050591  Festuca A. C. Sanders 2008-4-29 35133 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff s training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR192227  Festuca microstachys A. C. Sanders, Fred M. Roberts 2008-5-6 35259 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCSB47949  Festuca microstachys Roberts, D. 1980-5-3 Orange .25 km West Trabuco Peak; on Main Divide Truck Trail 1340 Comment
  SBBG101678  Festuca microstachys var. pauciflora S. Boyd with Mistretta 1991-5-9 6193 Orange Oak Flat, SE of Sierra Pk, just W of Riverside County line 792 Comment
  UCR191325  Festuca octoflora A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34608 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
  RSA0015959  Festuca perennis Fred M. Roberts 2012-4-24 7534 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
  UCSB47953  Festuca temulenta Roberts, D. 1980-5-4 Orange 8 km N. Northern tip of Thunderbird Homes; Dana Point 61 Comment
  UCR269242  Ficus carica R. E. Riefner Jr. 2015-8-27 15- 361 Orange South Coast, city of Newport Beach, south of Poppy Street/Ocean Blvd., Buck Gully, Little Corona Beach 7 Comment
  CAS-BOT-BC502095  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -381 Orange City of Anaheim, Pearson Park, SE section of park, N of N. Helena St, and W. Cypress St., near jct. of N. Lemon St., and W. Cypress St. 44 Comment
  RSA0088634  Ficus microcarpa R. E. Riefner Jr. 2014-11-26 14 -399 Orange City of Irvine, W of Irvine Blvd. and S of Pusan Way, Former MCAS El Toro facility. 138 Comment
  RSA0116290  Ficus microcarpa R. E. Riefner Jr. 2014-7-14 14 -169 Orange City of Newport Beach, N side of Pacific Coast Highway at Riverside Ave. 6 Comment
  CAS-BOT-BC474739  Ficus rubiginosa R. E. Riefner, Jr. 2015-8-29 15 -369 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco 363 Comment
  UCR223963  Filago californica Fred M. Roberts 2008-4-9 6853 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
  IRVC24745  Filago californica Fred M. Roberts 1986-4-29 2821 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  RSA688977  Filago gallica Fred M. Roberts, David E. Bramlet 2003-4-10 5637 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  UCR186684  Foeniculum vulgare T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1905 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  UCR222860  Foeniculum vulgare T. B. Salvato 2010-10-27 5132 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 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
  LA207689  Frangula californica subsp. cuspidata P. C. Everett; 1935-6-18 5451 Orange Santa Ana Mountains, summit of Santiago Peak 1731 Comment
  LA207696  Frangula californica subsp. cuspidata C. B. Wolf; 1933-8-24 5391 Orange Santa Ana Mountains, summit of Santiago Peak 1731 Comment
  SD120877  Frangula californica subsp. tomentella Reid Moran 1975-7-18 22600 Orange slope, upper Trabuco Canyon, Santa Ana Mountains 700 Comment
  SD152766  Frangula californica subsp. tomentella Steve Boyd, Tim Ross 1992-5-19 7435 Orange Santa Ana Mountains, San mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon 274 Comment
  UCD50249  Frangula purshiana Daniel I. Axelrod 1971-1-22 2 ax Orange By T on Trabuco on Santiago Peak topog. Inside CNF Boundary where road crosses 1 st Creek. Creek crosses to the south side of the canyon. Core in Trabuco Canyon. In Cleveland Nat'l Forest, Santa Ana Mountains, Orange County. Comment
  RSA5859  Frankenia grandifolia Carl B. Wolf 1932-6-28 3784 Orange Edge of field on Bryant Ave. 9 Comment
  SD82963  Frankenia salina C. Davidson 1970-7-25 1494 Orange Bolsa Chica; Signal oil field. Comment
  UC1543183  Frankenia salina Donald G. Nelson 1935-6-27 331 Orange beaches s Corona del Mar (on bluffs facing ocean, near edge of salt marsh in ravine, s of mouth of Newport Bay) Comment
  UCR240107  Frankenia salina Dick Newell, Judy Booth 2012-9-26 291 Orange South Coast, Newport Beach, Back Bay Drive at the Salt Dike 3 Comment
  UCR89689  Frasera parryi Don Pendleton 1992-5-16 92- 18 Orange Santa Ana Mtns., Cleveland National Forest, NW of El Cariso, on trails near Falcon Group Camp 823 Comment
  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
  SBBG98328  Fraxinus dipetala E. Crow 1929-4-7 287 Orange E end of Corona Skyline drive Comment
  UC2042136  Fraxinus dipetala R. F. Thorne and C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. [locality information from field label; note on newspaper 'N slope Pleasant's Pk, 1.5 mi S Beek's Place] Comment
  UCR261699  Fraxinus dipetala Dick Newell, Judy Booth 2014-5-15 371 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 0.87 road miles east of the lower Maple Springs gate 623 Comment
  CDA9402  Fraxinus uhdei D. G. Kelch 2006-12-9 6 .535 Orange Along Newport Back Bay Dr. in side canyon. Comment
  CHSC27882  Fremontodendron mexicanum Mike Cecchini 1978-3-23 2 Orange Ca. .5 km ne of Tucker Wildlife Sanctuary and 1 km se of Modjeska Reservoir, 20.5 km se of Tustin. 450 Comment
  RSA539416  Funastrum cynanchoides var. hartwegii Fred M. Roberts, D. Willick 1988-9-16 4133 Orange Peralta Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.1 km N Robbers Peak 177 Comment
  UCR281491  Funastrum cynanchoides var. hartwegii Mitch Provance 2017-6-9 617- 99 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  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
  RSA609661  Galium angustifolium R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA679222  Galium angustifolium Fred M. Roberts 2003-6-25 5949 Orange Santa Ana Mountains: Mojeska Peak in Upper Cold Springs Cyn., north of Main divide Truck Trail, 0.4 km ESE summit. 1471 Comment
Read comments
Jan 12 2007
  RSA700194  Galium angustifolium Stephen Bruff s.n. Orange Lemon Heights. 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
  RSA789601  Galium angustifolium subsp. angustifolium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49652 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] Comment
  RSA610219  Galium aparine Fred M. Roberts Jr., Julie Vanderwier 1997-4-29 5017 Orange Bolsa Chica Salt Marsh (U.S. Fish and Wildlife Service cell 17), west edge of old oil field, 1.7 km SSE Chica Survey Mark. 0 Comment
  UCSB56680  Galium nuttallii subsp. nuttallii Roberts, Fred 1984-1-29 Orange Laguna Niguel: Niguel Hill, 1.1 km. ENE Aliso Peak; 2.0 Km. SW Alicia Fire Station 260 Comment
  RSA562752  Galium parisiense Steve D. Boyd, Tim S. Ross 1992-5-19 7428 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
  JEPS6547  Galium trifidum var. pacificum Lawrence M. Booth 1932-7-4 1244 Orange Newport Bay Comment
  UCR193262  Gamochaeta pensylvanica A. C. Sanders, Fred M. Roberts 2008-6-17 35523 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  UCSB56674  Garrya fremontii Roberts, Fred 1984-2-12 Orange Santa Ana mts; 0.lkm SW Falcon Group Camp; 2.0km ESE Los Pinos Peak 304 Comment
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Apr 27 2020
  UCR192991  Gastridium ventricosum A. C. Sanders, Fred M. Roberts 2008-6-17 35468 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR182326  Gaura drummondii E. Johnson 1939-8-3 s.n. Orange South Coast, Brea 122 Comment
  RSA581434  Gaura odorata Fred M. Roberts 1989-5-21 4375 Orange Lomas de Santiago: just east of Santiago Canyon Road, ca. 1.8km WSW Santiago Reservoir spillway. 248 Comment
  RSA38480  Gaura parviflora E. L. Paddock 1943-6-8 12730 Orange Whittier Road 1/4 mile west of Puente Street, Brea. Comment
  CDA5232  Gaura sinuata E. Dudley Aug 1939 Orange 0 Comment
  RSA0014065  Gazania linearis Fred M. Roberts 2008-5-30 7014 Orange Lomas de Santiago: Santiago Creek wash, 0.6 km SSE Silverado Sch., Irvine Ranch Conservancy. 314 Comment
  RSA0127604  Geranium carolinianum Fred M. Roberts 2016-3-25 8034 Orange San Joaquin Hills: Bommer Canyon, west slope near south end fo Nature Loop Trail, 0.1 km NW Cattle Camp and 1.6 km NE summit of Signal Peak. 146 Comment
  RSA682592  Geranium carolinianum Scott D. White, Brian Leatherman 1997-5-6 5037 Orange Santa Ana Mts: Santiago Canyon area. Unnamed tributary to Santiago Ck. flowing from the SW, directly west of Pancho Cyn. Lomas de Santiago S 179. 366 Comment
  UCR240189  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-12-5 12- 588 Orange South Coast, city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road 9 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
  RSA156758  Gilia angelensis D. E. Breedlove 1962-3-9 1798 Orange 4.4 miles east of San Juan Capistrano on State [hwy] 74 113 Comment
  RSA3167  Gilia angelensis C. B. Wolf 1932-3-8 2696 Orange Santiago Dam, W. base Santa Ana Mts. 305 Comment
  SEINET6969921  Gilia angelensis W. P. Vestal, A. G. Vestal 1955-3-24 3460 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  UCR193468  Gilia capitata A. C. Sanders, T. B. Salvato 2008-5-13 35339 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
  RSA708369  Githopsis diffusa subsp. candida Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6243 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  UCR130350  Gloriosa superba A. C. Sanders, Mark A. Elvin 2003-10-12 27330 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  RSA588723  Gnaphalium californicum Fred M. Roberts 1990-5-7 4607 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
  RSA859  Gnaphalium californicum J. T. Howell 1927-6-24 207 Orange Aliso Canyon, Rancho Santa Ana. 366 Comment
  SEINET7067531  Gnaphalium californicum A. G. Vestal 1947-6-12 s.n. Orange Grade above road-end at Silverado Canyon. Coordinate datum: NAD27. UTM Zone 11, 445596mE, 3734267mN. Comment
  RSA663155  Gnaphalium canescens subsp. beneolens R. E. Riefner 2000-8-8 20 -724 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  RSA679098  Gnaphalium leucocephalum Fred M. Roberts 2003-7-24 5963 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
  RSA683220  Gnaphalium leucocephalum Scott D. White, Matt Carlton 2003-11-20 9874 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  RSA666100  Gnaphalium palustre Fred M. Roberts, Michelle Lee 2001-6-4 5484 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. (Canada Gobernadora. 226 Comment
  UCR191356  Gnaphalium palustre A. C. Sanders, Fred M. Roberts 2008-4-8 34736 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR208624  Gnaphalium palustre O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  RSA0022441  Gnaphalium ramosissimum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49774 Orange Santa Ana Mountains: Trabuco Canyon 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
  CAS-BOT-BC123700  Grindelia camporum var. bracteosa John Thomas Howell 1927-7-16 2786 Orange hills on N side of Santa Ana Canyon 182 Comment
  RSA202179  Grindelia camporum var. bracteosa L. M. Booth 1932-5-24 1092 Orange Newport Bay, Public Golf Course. Comment
  SEINET179462  Grindelia camporum var. bracteosa L. M. Booth 1932-5-24 1092 Orange Newport Bay Comment
  UCR233742  Grindelia camporum var. bracteosa Fred M. Roberts 2008-6-26 7059 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
  UC536899  Grindelia hirsutula Lawrence M. Booth 1932-5-24 1092 Orange Newport Bay Comment
  UCR46575  Gutierrezia bracteata B. G. Pitzer 1986-10-21 0346 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
  CAS-BOT-BC314525  Gutierrezia californica Helen D. Geis 1902-1-1 573 Orange Santiago Cr. Comment
  LA203641  Gutierrezia californica A. M. Johnson; 1932-4-23 4029 Orange Dry hills N of Orange Comment
  RSA581359  Hainardia cylindrica R. E. Riefner 1995-6-28 95 -256 Orange Along margins of vernal pools. Surf Beach, San Onofre State Beach. Comment
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Nov 19 2013
  SEINET10605899  Hainardia cylindrica Alan A. Beetle 1942-4-19 Beetle 3092 Orange 20 miles south of Santa Ana, road to Laguna, heavy clay mud of back beach. Comment
  RSA753032  Haplopappus squarrosus subsp. grindelioides A. C. Sanders, Fred M. Roberts 2008-9-18 36098 Orange Lomas de Santiago, Santiago Creek Canyon at the highway bridge above Irvine Lake 300 Comment
  RSA0066590  Harpagonella palmeri Richard E. Riefner Jr. 2000-4-28 20 -393 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road; NE of Windy Ridge. 533 Comment
  RSA0066596  Harpagonella palmeri D. E. Bramlet 2003-3-20 3352 B Orange Donna O Neill Reserve. 122m west of Cristianitos Road, and 1.7 km north of the E-W access road. The site is just north of an ephemeral stream channel. 134 Comment
  RSA0002527  Hasseanthus elongatus L. R. Abrams 1901-06 1785 Orange San Joaquin Hills Comment
  LA203734  Hazardia squarrosa var. grindelioides W. Pequegnat; 1937-8-31 sn Orange Santa Ana Mountains, Indian Canyon, (Seen also in branch of Trabuco Canyon about 3000 ft.) 365 Comment
  RSA5276  Hazardia squarrosa var. grindelioides B. D. Stark 1932-12-15 4452 Orange Rancho Santa Ana, slope above grove #4 145 Comment
  IRVC23184  Hedera canariensis G. Reynolds 1987-7-7 4 Orange Costa Mesa, at corner of Mesa St. and Santa Ana Ave. Comment
  RSA585059  Hedypnois cretica D. Atwood 1993-3-28 17716 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. Sea level. 0 Comment
  RSA685925  Hedypnois cretica Fred M. Roberts 2003-3-27 5624 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
  RSA751327  Hedypnois cretica A. C. Sanders, Fred M. Roberts 2008-5-6 35261 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  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
  SEINET11196714 Image available Hedypnois cretica D. Atwood 1993-3-28 17716 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. Comment
  UCR150613  Hedypnois cretica Scott D. White 1997-5-6 5045 Orange Peninsular Ranges; Santa Ana Mountains, Lomas de Santiago. Santiago Canyon area: Ridgetop road N and west of Bolero Lookout 488 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
  RSA39337  Hedypnois cretica E. L. Paddock 1943-5-29 12743 Orange S of Devdar, 1/4 mile E of Carolina Ave extension, Brea. Comment
  RSA696701  Helianthemum scoparium Anonymous s.n. Orange Modjeska. Comment
  IRVC772  Helianthus annuus D. DeVault 1965-3-28 Orange Corona del Mar, Bayside Dr. and Jamboree Rd. Newport Beach Comment
  JEPS35482  Helianthus annuus W. L. Jepson 1940-10-6 20180 Orange Horseshow Bend Santa Ana Canyon Comment
  UCSB6831  Helianthus annuus H. F. Copeland 1938-6-28 1574 Orange Hills back of Laguna Beach. Laguna Beach Comment
  POM201743  Helianthus annuus subsp. lenticularis L. M. Booth 1932-6-29 1230 Orange Newport Bay. 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
  RSA643433  Helianthus ciliaris R. D. Goeden, D. W. Ricker 1965-7-7 s.n. Orange Laguna Hills: Veeh Ranch, ca. 1.5 mi. W of El Toro. 91 Comment
  RSA736587  Helianthus gracilentus Keith E. Hoffmaster 1934-5-13 173 Orange Santa Ana Mountains Comment
  POM369759  Heliotropium curassavicum var. oculatum A. M. Johnson 1932-4-23 4032 Orange Railroad right of way, N of Orange County Comment
  CAS-BOT-BC305899  Helminthotheca echioides Ira L. Wiggins 1965-11-5 20322 Orange Near corner of Dowling Street and Crowther Avenue. 1/2 mi. S of Placentia Comment
  RSA234522  Hemizonia australis James Henrickson 1970-7-25 5081 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. 2 Comment
  RSA594890  Hemizonia australis Fred M. Roberts 1992-9-9 4847 Orange Irvine: San Joaquin Freshwater Marsh, 2.0 km NW University of California Irvine campus center 2 Comment
  IRVC14796  Hemizonia fasciculata A. S. Boughey 1968-7-16 424 Orange road to Signal Peak. San Joaquin Hills Comment
  POM5000  Hemizonia fasciculata H. M. Hall 1906-6-19 7411 Orange Gypsum, Santa Ana Canyon 122 Comment
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Sep 4 2011
  RSA699662  Hemizonia fasciculata Keith E. Hoffmaster 1928-5-29 s.n. Orange San Onofre. CP5. Comment
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Nov 19 2013
  RSA734989  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35279 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR131870  Hemizonia fasciculata J. Mallory, V. McCoy 1995-7-3 6454- 73 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  UCR193760  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts 2008-7-3 35705 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
  UCR82801  Hemizonia fasciculata O. F. Clarke 1994-6-17 s.n. Orange Laguna Canyon Comment
  UCR231160  Hemizonia parryi subsp. australis Dick Newell, Don Millar 2011-6-22 191 Orange South Coast, Newport Beach, Delhi Channel near University Drive 5 Comment
  JEPS44659  Heteromeles arbutifolia Lawrence M. Booth 1932-6-7 1166 Orange Newport Bay Comment
  RSA649083  Heteromeles arbutifolia Karl Price 1988-5-21 57 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA699265  Heteromeles arbutifolia Unspecified s.n. Orange Maple Avenue School Comment
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Oct 7 2013
  SBBG27204  Heteromeles arbutifolia C. B. Wolf 1932-12-19 4430 -a Orange 0.5 mi from Skyline Drive on fire break rd to Sierra Peak 762 Comment
  SD241168  Heteromeles arbutifolia T. B. Salvato 2010-9-27 5123 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
  RSA0072397  Heteromeles arbutifolia Fred M. Roberts 1986-11-5 3204 Orange Santa Ana Mts.: Upper Mabey Canyon near top of Skyline Dr., 2.7 km SE Sierra Peak, NE of Oak Flat. 850 Comment
  HSC5823  Heterotheca grandiflora J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay 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
  RSA0075808  Heterotheca grandiflora Fred M. Roberts 2008-9-28 7110 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  UC1543194  Heterotheca grandiflora Donald G. Nelson 1935-3-23 186 Orange sand pit near dump just s E. Orangethorpe Ave.; East Fullerton Comment
  UCR106287  Heterotheca grandiflora B. G. Pitzer, M. Georgiady 1997-4-5 3070 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
  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
  RSA0075806  Heterotheca grandiflora Ken Greby 1985-5-17 38 Orange On hillsides behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  RSA0075815  Heterotheca grandiflora Mary F. Spencer 1922-5-31 77 Orange Fullerton, Orange County Comment
  SD113060  Heterotheca grandiflora Darley F. Howe 1971-10-25 4791 Orange Near corner of Brookhurst and Lincoln Ave., Anaheim. Comment
  UCD133033  Heterotheca grandiflora W. G. Watkins 1936-3-10 s.n. Orange Orange. Comment
  UCR195016  Heterotheca sessiliflora A. C. Sanders, Fred M. Roberts 2008-8-7 35973 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-BC318988  Heterotheca sessiliflora var. echioides John Thomas Howell 1927-9-24 3109 Orange North side of Santa Ana Canyon 213 Comment
  RSA751403  Hieracium argutum R. E. Riefner Jr. 2008-6-3 08 -136 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, E fork Fremont Canyon, Black Star SCE Rd. 641 Comment
  CAS-BOT-BC207960  Hoffmannseggia glauca Margaret K. Bellue 1933-6-7 s.n. Orange Unspecified Comment
  POM348811  Hoita macrostachya M. B. Dunkle 1934-6-18 3988 Orange San Juan Canyon, Southern Coastal. 305 Comment
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Oct 3 2011
  UCD169748  Hoita macrostachya R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49564 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. 1859 Comment
  UCR247907  Hoita macrostachya Fred M. Roberts 2013-6-12 7785 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  IRVC19365  Hoita macrostachya R. L. Allen Jul 1977 s.n. Orange Santa Ana Mountains; [San Juan Canyon], Ortega Hwy, road side 111. Peninsular Ranges Comment
  IRVC18572  Holocarpha virgata Karlin G. Marsh 1980-8-13 Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  RSA131403  Holodiscus discolor E. K. Balls 1958-6-27 23284 Orange 5 miles southeast from Silverado (Gate), Silverado Canyon 1098 Comment
  RSA2919  Holodiscus discolor B. D. Stark 1931-6-10 2248 Orange east fork of Claymine Canyon, north end of Santa Ana Mts 305 Comment
  CAS-BOT-BC285000  Hordeum depressum P. A. Munz 1918-5-5 2192 Orange Laguna Beach Comment
  RSA608537  Hordeum intercedens D. E. Bramlet 1993-4-18 2332 Orange University of California, Irvine Campus, on the UCI Ecological Reserve. The site is 500 ft. southwest of the end of Los Trancos Dr. & 75 ft northwest of the reserve entrance., 37 21 370m. N X 4 21 950m E. Comment
  RSA704072  Hordeum intercedens D. E. Bramlet, Fred M. Roberts 2003-5-1 3423 Orange Donna O'Neill Reserve: Along the north ridge trail, 305m west of Cristianitos Rd. and 1 km north of the E-W access road. 128 Comment
  UCR150373  Hordeum intercedens D. E. Bramlet 1998-5-20 2622 Orange Coastal Plains & Basins/Coastal Plains region, San Juan Hills: 488 m west of La Pata Ave. and 1.22 km N of Prima Deshecha Canada. A blue-line drainage 457 m east of the old ridgeline road 149 Comment
  UCR168466  Hordeum intercedens D. E. Bramlet, Fred M. Roberts 2003-5-8 3433 Orange Donna O'Neill Reserve, S-mid east area of reserve, 91 m west of Cristianitos Rd. and 152 m south of the east - west road, San Clemente 119 Comment
  RSA708233  Hordeum marinum subsp. gussoneanum Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-4-10 6156 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
  UCR102009  Hordeum murinum B. G. Pitzer 1997-3-25 3002 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  HSC10201  Hordeum murinum subsp. leporinum D. W. Snell 1964-3-22 1 Orange 1/2 mi. S of Imperial Hwy., 1 mi. W of Yorba Linda. Comment
  UCR37805  Horkelia cuneata subsp. cuneata 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
  UCR256940  Horkelia cuneata var. puberula Naomi Fraga, Duncan S. Bell 2009-5-11 2720 Orange Peninsular Range; Santa Ana Mountains, Chiquita Trail, Lion Canyon 762 Comment
  CAS-BOT-BC537311  Horkelia cuneata var. puberula H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  RSA80329  Hydrocotyle umbellata J. T. Howell, F. Peirson 1927-8-13 7687 Orange Santa Ana River, Rancho Santa Ana, eastern end of Orange County. Comment
  RSA80334  Hydrocotyle umbellata F. W. Peirson 1924-10-19 5237 Orange Wintersberg Comment
  UCD169465  Hydrocotyle umbellata L. M. Booth Date Unknown 833 Orange Santa Ana Canyon. Comment
  RSA769302  Hypericum canariense R. E. Riefner Jr. 2010-6-9 10 -52 Orange City of San Juan Capistrano, along McKraken View Trail at San Juan Creek Rd., E of I-5 Freeway. 51 Comment
  SEINET272171  Hypochaeris glabra G. K. Helmkamp, E. A. Helmkamp 1997-4-24 1659 Orange Cleveland National Forest ; Cleveland National Forest 1.6 mi. SE of Ortega Hwy (CA-74) on Rd. 7-S14. UTM 10km cell: MH-5E 1N. San Juan Hot Spring 549 Comment
  UCR100447  Hypochaeris glabra B. G. Pitzer 1996-4-30 2782 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR98131  Hypochaeris glabra George K. Helmkamp, E. A. Helmkamp 1997-4-24 1659 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  UCR188940  Ipomoea cairica Robert DeRuff 2006-1 567 Orange Newport Beach, Upper Newport Bay, Back Bay Drive, lower bluff between 23rd Street and Mariners Drive 5 Comment
  UCR141342  Iris pseudacorus Robert DeRuff 2000-1 524 Orange Southern Coast, Newport Beach, Newport Back Bay, 23rd Street Creek on W side of the bay 12 Comment
  JEPS19467  Isocoma menziesii var. menziesii Peter H. Raven 1957-9-28 11368 Orange n limits of Surfside 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
  CAS-BOT-BC311674  Isocoma menziesii var. sedoides David D. Keck 1932-9-30 1901 Orange 2 mi. W. of Laguna Beach Comment
  POM361284  Isocoma menziesii var. vernonioides Anstruther Davidson 1917-08 3268 Orange Near Laguna Beach. Comment
  RSA573432  Isocoma menziesii var. vernonioides Steve Boyd, Tim Ross 1994-9-14 8343 Orange Southern Santa Ana Mtns, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trailhead at Forest Service4 Road 7S06 on ridge dividing Aliso and Verdugo Canyons. 476 Comment
  RSA697044  Isocoma veneta var. vernonioides Keith E. Hoffmaster 1927-10-9 s.n. Orange Santa Ana. Comment
  RSA660590  Isolepis carinata R. E. Riefner 2000-7-10 20 -641 Orange Nature Reserve of Orange County. Los Trancos Canyon, E of Pelican Hill. Comment
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Jul 18 2011
  UC1090402  Isomeris arborea Milo S. Baker 1958-5-20 13307 Orange Newport Bay 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
  RSA0042765  Iva hayesiana Fred M. Roberts 2012-7-18 7670 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  RSA651865  Jasminum humile Booisseranc s.n. Orange Front of Congressional Church, Breolinda. Comment
  CAS-BOT-BC340126  Jaumea carnosa Peter H. Raven 1957-9-28 11384 Orange At north limits of Surfside Comment
  PASA1561  Jaumea carnosa Frank W. Peirson 1924-8-29 Orange 3 miles from Balboa on road inland along creek Comment
  RSA301965  Jaumea carnosa J. R. Shevock 1972-9-27 2285 Orange Newport Back Bay. 2 Comment
  HSC13962  Juglans californica S. M. Clapp 1966-4-10 39 Orange 1 mi. N of Brea, on Brea Canyon Rd. 61 Comment
  SD138020  Juglans californica Carl B. Wolf 1939-11-29 42257 Orange Orange County Picnic Grounds Comment
  RSA0011056  Juglans californica J. R. Bruff 1936-11 s.n. Orange 1416 Durant St. Santa Ana. Comment
  RSA0011063  Juglans californica M. B. Dunkle 1933-5-30 3569 -A Orange Carbon Canyon 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
  SD70810  Juglans californica var. californica Lucille Kempers 1955-3-19 252 Orange Flying Cow Ranch in Carbon Canyon 259 Comment
  RSA790107  Juglans hindsii R. E. Riefner Jr. 2011-8-25 11 -114 Orange Trabuco Canyon, Trabuco Canyon Rd. ca. 1 mi NW of O Neill Regional Park. 319 Comment
  RSA0038707  Juglans nigra R. E. Riefner Jr. 2011-8-25 11 -115 Orange Trabuco Canyon, Trabuco Canyon Road c. 1 mi northwest of O Neill Regional Park 319 Comment
  RSA795706  Juncus W. R. Ferren 1991-12-4 EPA- 18 Orange Cook Creek, tributary to Aliso Creek, San Juan Capistrano. Comment
  RSA231137  Juncus acutus subsp. leopoldii Michael Ward 1970-8-22 V- 6 Orange 4 miles South of Seal Beach, NE of PCH amd Bolsa Chica State Park at Bolsa Chica Salt Marsh; Sea level 0 Comment
  RSA735751  Juncus balticus A. C. Sanders, Fred M. Roberts 2008-6-17 35492 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
  UCR261700  Juncus balticus Dick Newell, Don Millar 2014-9-30 386 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon Wash, 0.6 mi. south of Loma Ridge Rd. 279 Comment
  UCR158029  Juncus bufonius Adrian Wolf 1998-5-15 292 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 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
  UCR97575  Juncus bufonius B. G. Pitzer 1997-4-15 3139 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
  RSA184085  Juncus bufonius I. L. Wiggins 1966-3-31 20571 Orange Fullerton. Comment
  UCSB48092  Juncus bufonius var. congestus Roberts, Fred 1981-4-12 Orange Santa Ana Mtns; San Juan Cyn; Hwy 74; 1.3km by road E San Juan Guard Station; 0.9 km SE Juan Rancho SM 295 Comment
  RSA0014071  Juncus macrophyllus Fred M. Roberts, R. E. Riefner 2010-5-30 7024 Orange Lomas de Santiago: Loma Ridge, Hanging Man s Tree Cyn., along Hanging Man s Tree Cyn. Rd., c.a. 0.4km W Santiago Cyn. Rd., and 1.2 km N Bolero Lookout. 372 Comment
  UCD169360  Juncus macrophyllus A. C. Sanders; Fred M. Roberts, Michelle Balk 2006-7-20 33045 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line. 366 Comment
  RSA594873  Juncus mexicanus Fred M. Roberts, W. R. Ferren 1991-12-1 4828 Orange Aliso-Wood Canyons Regional Park: Lower Wood Canyon, just above confluence with Alins Canyon, ca. 3.5 kilometers S Multon Peak. 32 Comment
  RSA109  Juncus oxymeris J. T. Howell 1927-7-3 254 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA543966  Juncus patens Steve Boyd, Orlando Mistretta 1991-5-9 6197 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA562612  Juncus patens Steve Boyd, Fred M. Roberts 1992-10-14 7714 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
  RSA734854  Juncus patens A. C. Sanders, Mitch Provance 2008-5-20 35399 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR132983  Juncus patens Adrian Wolf 2000-7-13 455 Orange Santa Ana Mtns., 0.4 km SE of Black Star Canyon mouth 290 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
  UCR174221  Juncus rugulosus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33025 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  CAS-BOT-BC227115  Juncus textilis A. C. Sanders; Fred M. Roberts 2008-7-16 35855 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hangman's Tree Canyon 395 Comment
  UCR18360  Juncus textilis O. F. Clarke, Ileana Leil, Robert Lumley (park foreman) 1977-11-12 s.n. Orange Brea-Olinda Regional Wilderness Park, south of Brea. Small, moist canyon near the center of the park Comment
  RSA7323  Juncus xiphioides E. R. Johnson 1933-7-5 5166 Orange Rancho Santa Ana. 122 Comment
  SEINET11788654  Juncus xiphioides J. F. Bright, Wyman, C. 1933-1 8210 Orange valleys back of La Guna Beach Comment
  SEINET10929342  Juniperus David B. Dunn 1971-8-13 Dunn 18109 Orange Cultivated plants at Costa Mesa, California. Comment
  RSA21231  Juniperus californica E. R. Johnson 1937-3-28 8502 Orange 4 9/10 mi. E. of San Juan Capistrano on No. side of Ortega Highway. Comment
  RSA588789  Juniperus californica Fred M. Roberts, Dave Bontrager 1990-4-18 4573 Orange Rancho Mission Viejo: ridge between Lower San Juan Canyon and Upper Christianitos Canyon. 3.0 km S Point Rancho Survey Marker 215 Comment
  CAS-BOT-BC516185  Juniperus rigida var. conferta R. E. Riefner, Jr. 2011-7-1 11 -81 Orange City of Newport Beach, between Shorecliff Road and Cameo Shores Road 18 Comment
  UCR240182  Juniperus rigida var. conferta R. E. Riefner Jr. 2011-7-1 11- 81 Orange South Coast, city of Newport Beach, beach area between Shorecliff Road and Cameo Shores Road 18 Comment
  RSA5279  Keckiella antirrhinoides B. D. Stark 1932-12-15 1701 Orange Rancho Santa Ana, slope above grove #4. 145 Comment
  CAS-BOT-BC235531  Keckiella antirrhinoides var. antirrhinoides Helen D. Geis 1904-5-1 735 Orange Silverado Canon [Canyon], Santa Ana Mountains Comment
  LA105129  Keckiella cordifolia David C. Michener; 1980-7-14 3704 Orange Santa Ana Mountains, Starr Ranch Audubon Sanctuary, Crow Creek, ca. 1.3 mi N of confluence with Bell canyon Comment
  RSA401706A  Keckiella cordifolia F. R. Fosberg 1931-6-21 S- 5133 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA562763  Keckiella cordifolia Steve D. Boyd, Tim S. Ross 1992-5-19 7416 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
  RSA564474  Keckiella cordifolia B. Pitzer, S. Hemstreet 1992-5-27 1959 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground. 762 Comment
  RSA5930  Keckiella cordifolia Carl B. Wolf 1932-7-2 3822 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 213 Comment
  RSA659899  Keckiella cordifolia Karl Price 1988-5-21 40 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA734912  Keckiella cordifolia A. C. Sanders, Fred M. Roberts 2008-6-17 35460 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCSB48000  Keckiella cordifolia Roberts, Fred 1980-7-7 Orange Santa Ana Mtns; San Juan Canyon; Hwy 74; 2.4km ENE San Juan Guard Station; 0.3km W Benchmark 1100 345 Comment
  RSA718971  Kickxia elatine Fred M. Roberts, Robert L. Allen 2006-10-8 6409 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
  RSA773502  Koeleria macrantha Fred M. Roberts 1999-5-14 5222 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 502 Comment
  RSA725959  Koelreuteria bipinnata T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive. 6 Comment
  RSA699580  Lactuca scariola Anonymous s.n. Orange Santa Ana Comment
  CAS-BOT-BC340503  Lactuca serriola Ira L. Wiggins 1965-10-24 20288 Orange At corner of Yorba Linda and State College Blvd., Fullerton Comment
  CAS-BOT-BC340502  Lactuca serriola Carl B. Wolf 1932-7-7 3839 Orange Bryant Ranch, Bixby Ave., south edge of field, 100 ft. W. of Hansen Rd., 100 ft. W. of S.E. corner of N.E. 40 of N.E. of Sect. 34 T4S R11W 48 Comment
  UCR246471  Lagunaria patersonia R. E. Riefner Jr. 2004-12-23 04- 557 Orange South Coast, city of San Clemente, vicinity of San Clemente Pier at Ave. Del Mar 3 Comment
  UC912645  Lamarckia aurea Herbert L. Mason 1926-4-25 2938 Orange Laguna Canyon Comment
  UCD63319  Lamarckia aurea A. A. Beetle 1942-4-19 3095 Orange Rt. 101. 2 miles north of Laguna Beach. Comment
  UCR191420  Lamarckia aurea A. C. Sanders, Fred M. Roberts 2008-4-8 34769 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  SEINET2065733 Image available Lamium amplexicaule J. Harry Lehr 1973-4-21 909 Orange East Santa Anna St. W of State College Blvd, Anaheim 16 Comment
  UCSB41749  Lamium amplexicaule Fountain, L. 1966-2-16 Orange Northwest corner of Orangethorpe and State College Blvd Comment
  SEINET7287976  Lasthenia californica C. B. Wolf 1932-3-8 Orange 1/2 Mile north of Corona Del Mar. Bordes of Newport Bay 8 Comment
  UCR203976  Lasthenia coronaria D. E. Bramlet, J. E. Harrison 2008-4-3 4149 Orange Peninsular Range; Santa Ana Mountains, South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill 224 Comment
  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
  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
  SD73477  Lasthenia glabrata subsp. coulteri C. B. Wolf 1935-3-24 6295 Orange 1.0 mile north of Buena Park. Comment
  RSA699994  Lathyrus strictus Minor Warne 1934-03 s.n. Orange Laguna Canyon Comment
  RSA785201  Lathyrus vestitus Dick Newell, Don Millar 2010-4-20 016 Orange top of Serrano Ridge, 1 km west of the Nix Center/Laguna Canyon Rd. 229 Comment
  POM212417  Lathyrus vestitus subsp. alefeldii C. B. Wolf 1931-3-6 1835 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA12902  Lathyrus vestitus subsp. alefeldii P. C. Everett 1935-2-10 6292 Orange At base of West Ladd Trick Trail, mouth of Baker Canyon, Santa Ana Mountains 335 Comment
  RSA406636  Lathyrus vestitus subsp. alefeldii M. B. Dunkle 1934-2-19 3844 Orange San Juan Canyon, 366 Comment
  IRVC11716  Lathyrus vestitus subsp. laetiflorus B. T. Gittins 1963-4-18 171-D Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA488133  Lathyrus vestitus subsp. laetiflorus T. Mulroy 1973-5-21 1864 Orange Highway 74 ca 1 mile E of bridge across San Juan Creek. Comment
  UCSB57541  Lathyrus vestitus var. vestitus Mulroy, T. 1973-5-21 Orange Hwy. 74 ca. 1 mi. E of bridge across San Juan Creek Comment
  UCR4078  Lavatera assurgentiflora Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, Salt Creek Road off Pacific Coast Highway, between South Laguna and Dana Point 18 Comment
  RSA724037  Leersia oryzoides R. E. Riefner 2004-9-18 4 -425 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. 105 Comment
  UCR102631  Lemna B. G. Pitzer 1996-4-30 2786 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA603347  Lemna gibba Scott D. White, B. Leatherman 1997-6-12 5325 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 junction. 46 Comment
  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
  RSA443836  Lepechinia cardiophylla Gordon Marsh, Karlin G. Marsh 1978-5-13 s.n. Orange Claymine Canyon Road; above Claymine Canyon center on west ridge and near road. Comment
  RSA5329  Lepechinia cardiophylla B. D. Stark 1933-1-4 s.n. Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA716659  Lepidium didymum Fred M. Roberts 2005-5-13 6188 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
  POM21181  Lepidium lasiocarpum Helen D. Geis 1902-3-20 s.n. Orange Bed Santiago Creek. Comment
  RSA66150  Lepidium lasiocarpum F. W. Peirson 1923-3-25 3363 Orange Aliso Creek near Laguna Beach Comment
  UCR237845  Lepidium lasiocarpum Mark A. Elvin 2003-2-2 2274 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  CDA23129  Lepidium latifolium Mary H. White, Mark A. Elvin 2006-9-23 923064 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
  IRVC29818  Lepidium latifolium Mary H. White, Mark A. Elvin 2006-9-23 92306 4 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  UCR14029  Lepidium latifolium J. Riley 1973-9-12 s.n. Orange N end of Huntington Beach Comment
  IRVC25562  Lepidium nitidum Fred M. Roberts 1989-3-17 4209 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA325  Lepidium nitidum J. T. Howell 1928-2-7 813 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA732067  Lepidium nitidum A. C. Sanders, Fred M. Roberts 2008-3-25 34515 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CSUSB545  Lepidium nitidum Oscar F. Clarke 1966-3-19 S. N. Orange Irvine Ranch, east of University of Calif. at Irvine, Newport Beach Comment
  RSA184170  Lepidium nitidum I. L. Wiggins 1966-3-5 20511 Orange 1/2 mile W of El Toro along Hwy 18 Comment
  RSA697453  Lepidium nitidum Pomeroy 1929-2-23 79 Orange Near El Toro. Comment
  UCSB52926  Lepidium virginicum Roberts, Jr., Fred 1983-3-16 Orange Laguna Beach, Sycamore Hills, central ridge; 1.1 km NNE jct. El Toro and Laguna Cyn. Rds.; 5.4 km. ESE Signal Peak 170 Comment
  CAS-BOT-BC329359  Lepidospartum squamatum Helen D. Geis 1902-1-1 s.n. Orange Santiago Canon Comment
  RSA734396  Lepidospartum squamatum Keith E. Hoffmaster 1935-4-14 598 Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. Comment
  RSA899  Lepidospartum squamatum J. T. Howell 1927-7-28 505 Orange West side, Rancho Santa Ana. 152 Comment
  RSA800662  Leptochloa fusca subsp. fascicularis Justin M. Wood 2010-9-29 2740 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
  RSA161259  Leptochloa fusca subsp. uninervia P. H. Raven 1961-10-15 16851 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing 61 Comment
  UCD63972  Leptochloa fusca subsp. uninervia Beecher Crampton 1965-10-27 7581 Orange 2 mi. east of Irvine, Irvine Blvd. Comment
  RSA0027773  Leptodactylon californicum R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49691 Orange Northern Santa Ana Mountains: Sierra Peak 900 Comment
  RSA698317  Leptodactylon californicum R. H. McArthur 1934-3-25 s.n. Orange Limestone Canyon Comment
  POM13830  Leptosiphon androsaceus P. A. Munz 1922-4-29 5035 Orange Leach Canyon, Santa Ana Mts. 610 Comment
  RSA588712  Leptosiphon androsaceus Fred M. Roberts 1990-5-22 4638 Orange Santa Ana Mountains; Upper Hot Springs canyon, just west of Falcon Group Camp, 1.9km ESE Los Pinos Peak. 994 Comment
  RSA73675  Leptosiphon floribundus F. W. Peirson 1925-4-10 5741 Orange In Silverado Canyon. 610 Comment
  RSA715700  Leptosiphon liniflorus Fred M. Roberts, Robert L. Allen 2005-10-15 6311 Orange entrance to Falcon Group Camp, 2.1km ESE Los Pinos Peak and 0.3km NE campground. 1008 Comment
  UCR197699  Lessingia filaginifolia A. C. Sanders, Fred M. Roberts 2008-9-18 36085 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  RSA160419  Lessingia glandulifera var. glandulifera J. D. Olmsted 1959-9-22 984 Orange Along industrial waste waters bank from 3 miles clay works just N of Hwy 8-9 miles WSW of Corona, N of Santa Ana Mts. to Santa Ana River 140 Comment
  RSA697771  Leymus triticoides Minor Warne 1934-5-17 s.n. Orange Greenville Drainage. Comment
  RSA698086  Lilium humboldtii J. Vlahos 1934-03 s.n. Orange Black Star Canyon. Comment
  RSA771715  Lilium humboldtii subsp. ocellatum Robt. Allen, Richard S. Newell, Roger E. Reinke 2006-6-30 s.n. Orange Santa Ana Mts., Holy Jim Canyon Trail. About 1 mile up trail from forest gate. 609 Comment
  IRVC29763  Limonium californicum Barry S. Nerhus, Mark A. Elvin 2006-11-4 8 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  UC1873116  Limonium duriusculum R. E. Riefner Jr. 2005-10-5 05 -707 Orange City of Irvine, near Bonita Creek, along La Salud St. near Milano Dr. 9 Comment
  RSA723491  Limonium duriusculum R. E. Riefner 2005-10-5 5 -707 Orange City of Irvine, Bonita Creek, along La Salud St. near Milano Dr. 9 Comment
  CDA1081  Limonium sinuatum D. G. Kelch 2006-12-9 6 .545 Orange Along Newport Back Bay Dr. in side canyon. Comment
  IRVC29782  Limonium sinuatum Mark A. Elvin, Dean Kelch 2006-12-9 5294 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA468463  Linanthus californicus Albert J. Perkins 1920-5-16 s.n. Orange Trabuco Canyon, Comment
  RSA584716  Linanthus californicus subsp. glandulosus Fred M. Roberts 1989-5-18 4370 Orange Santa Ana Mountains: Upper Gypsum canyon, above ridge road, ca. 6.4 km WSW Sierra Peak. 415 Comment
  SEINET7067522  Linanthus liniflorus A. G. Vestal 1947-6-12 s.n. Orange Canyon Road to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 444428mE, 3723792mN. Comment
  UCR191340  Linaria canadensis A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34617 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  POM8755  Lithophragma affine subsp. mixtum P. A. Munz, R. D. Harwood 1920-4-25 3718 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  IRVC21382  Lobelia dunnii var. serrata A. S. Boughey 1968-7-9 405 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA662131  Lobularia maritima Daniel Curran 1981-1-23 5 Orange 2733 Boadway, Anaheim. Comment
  RSA0069230  Logfia arizonica Fred M. Roberts, Megan Lulow 2009-3-18 7135 Orange Santa Ana Mtns.: Lomas De Santiago: Loma Ridge, Lower Hicks Canyon, about 350 meters from south side of Haul Road, 1.9 km E Rattlesnake Cyn. Reservoir Dam and 2.1 km W Bee Peak. 172 Comment
  CAS-BOT-BC283494  Lolium multiflorum Carl B. Wolf 1932-7-7 3858 Orange Bryant Ranch, Bryant Ave, at pump house, 0.5 mile E of Los Alamitos Blvd Comment
  RSA688868  Lolium perenne Fred M. Roberts 2003-5-1 5670 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.49km S Gato Gate and just west of Cristianitos Rd. (San Clemente) 84 Comment
  RSA734893  Lolium perenne subsp. multiflorum A. C. Sanders, Mitch Provance 2008-5-20 35419 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile blow Modjeska Canyon confluence. 345 Comment
  RSA6130  Lolium perenne subsp. multiflorum C. B. Wolf 1932-6-13 3728 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  SEINET192611 Image available Lolium temulentum E. R. Johnson 1932-5-18 Orange Rancho Santa Ana Botanic Garden; edge of grain field bordering the Rancho Comment
  POM202585  Lolium temulentum L. M. Booth 1932-5-19 1078 Orange Newport Bay. Comment
  RSA0011619  Lolium temulentum Jeanne Paxton 1934-4-12 s.n. Orange Marshes back of Santa Ana Country Club. Comment
  RSA542445  Lomatium dasycarpum subsp. dasycarpum Fred M. Roberts 1988-4-10 3913 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  UCR18584  Lomatium lucidum John C. Roos 1960-5-30 s.n. Orange Peninsular Ranges; Santa Ana Mtns, ridge at head of Hagador Canyon 1070 Comment
  IRVC21254  Lomatium lucidum Fred M. Roberts 1982-7-7 735 Orange Niguel Hill, 1.6km SE Aliso Peak; 0.7km E BM 133, South Laguna 231 Comment
  SEINET12118936  Lomatium utriculatum J. F. Bright, Wyman, C. 1933-1 8100 Orange in Santa Ana foothills Comment
  SEINET6960363  Lomatium utriculatum Wanda P. Vestal, A. G. Vestal 1955-3-24 3464 Orange Trabuco Canyon, about 5 mile east of El Toro. Comment
  CAS-BOT-BC240668  Lonicera interrupta A. M. White 1974-6-1 1408 Orange Ca. 20 mi. E. of Santa Ana, N. of Silverado Canyon Comment
  RSA0119677  Lonicera japonica Fred M. Roberts 2015-4-16 7940 Orange Newport Beach: Big Canyon, north side, vicinity of Big Canyon Trail, 0.5 km W Corona Del Mar High School. 2 Comment
  RSA751430  Lonicera subspicata A. C. Sanders, Fred M. Roberts 2008-7-3 35670 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UCSB52454  Lonicera subspicata var. denudata Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills; Carbon Canyon, Carbon Canyon Rd., 0.3 km. by road SW county line; 2.5 km. NW Gilman Peak 260 Comment
  RSA769336  Lotus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA603367  Lotus heermannii Scott D. White, Brian Leatherman 1997-6-12 5338 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  RSA734806  Lotus humistratus A. C. Sanders, Fred M. Roberts 2008-5-6 35254 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR193053  Lotus salsuginosus A. C. Sanders, Mitch Provance 2008-5-20 35406 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA699490  Lotus salsuginosus H. Dittmer 1932-5-16 s.n. Orange Road to Irvine Dam Comment
  RSA620349  Lotus salsuginosus var. salsuginosus B. Pitzer, M. Georgiady 1997-4-5 3067 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
  RSA678492  Lotus scoparius Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5851 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  UC537008  Lotus scoparius Lawrence M. Booth 1932-5-12 1025 Orange Newport Bay Comment
  UCR131884  Lotus scoparius J. Mallory, V. McCoy 1995-6-30 6454- 59 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. Comment
  RSA303527  Lotus scoparius Jim Shevock 1970-12-20 568 Orange Newport Back Bay. 11 Comment
  UCR223427  Lotus scoparius subsp. scoparius Dick Newell, Don Millar 2011-2-15 059 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  RSA748819  Lotus scoparius var. scoparius G. Gust, L. Nye 2005-3-12 564 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UCR193062  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-5-6 35219 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  RSA391  Lotus strigosus J. T. Howell 1928-2-25 842 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA734761  Lotus strigosus A. C. Sanders, T. B. Salvato 2008-5-13 35341 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence. 366 Comment
  UCR173876  Lotus strigosus Scott D. White 2003-3-21 8801 Orange Peninsular Range/Santa Ana Mtns, Foothills [above] Rancho Mission Viejo; E-facing slopes above an unnamed tributary to San Juan Creek 183 Comment
  UCR190969  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-4-22 35053 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  RSA542579  Lotus strigosus var. strigosus Fred M. Roberts 1988-3-15 3847 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  POM201832  Lotus wrangelianus L. M. Booth 1932-5-19 1073 Orange Newport Bay. Comment
  UCSB10696  Lupinus Robert M. Lloyd 1959-4-17 207 Orange collected in the Black Star Canyon of the Santa Ana Mountains Black Star Canyon 640 Comment
  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
  UCR194560  Lupinus andersonii A. C. Sanders, Fred M. Roberts 2008-4-8 34763 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
  IRVC24765  Lupinus bicolor subsp. umbellatus Fred M. Roberts 1986-4-24 2790 Orange Rancho Mission Viejo: Canyon east of Trampas Canyon, S of Hwy 74, 2.5km E Viejo Survey Mark. Santa Ana Mountains 113 Comment
  UCR46561  Lupinus excubitus B. G. Pitzer, D. C. Hawks 1986-10-21 342 Orange Peninsular Ranges; Santa Ana Mountains, Lomas de Santiago, c. 10 mi east of Santa Ana along Jeffrey Rd. in Hicks Canyon, c. 1.0 mi north of South Coast Gun Club 183 Comment
  CAS-BOT-BC216677  Lupinus excubitus subsp. hallii B. D. Stark 1933-2-3 1780 Orange Atwood, 8/9 miles e. of Atwood on the south side of santa Fe R.R. 106 Comment
  IRVC2307  Lupinus excubitus var. hallii Pat Rolfe 1965-3-30 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  IRVC24802  Lupinus excubitus var. hallii Fred M. Roberts, Gordon Marsh 1986-5-16 2908 Orange Ridge above San Juan Canyon, Sitton Peak Truck Trail, 4.0km W Sitton Peak, Santa Ana Mountains 670 Comment
  RSA30487  Lupinus excubitus var. hallii B. D. Stark 1933-2-3 11192 Orange Atwood. 91 Comment
  UCR191460  Lupinus hirsutissimus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34654 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
  UCSB47613  Lupinus hirsutissimus Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, 0.4 km. NNE Falcon Group Camp (near Blue Jay CG); Santa Ana Mountains 1067 Comment
  RSA413752  Lupinus latifolius subsp. parishii N. C. Cooper 1949-5-1 3949 Orange San Juan Canyon 610 Comment
  UC1543209  Lupinus longifolius Donald G. Nelson 1935-4-6 218 Orange up San Juan Canyon (n from summer ranger station on main highway, e of San Juan Capistrano, just s of boundary of Cleveland National Forest); just s of boundary of Cleveland National Forest Comment
  RSA405  Lupinus sparsiflorus subsp. sparsiflorus J. T. Howell 1928-2-25 843 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA414283  Lupinus sparsiflorus subsp. sparsiflorus M. B. Dunkle 1938-3-26 5234 Orange San Juan Canyon 30 Comment
  RSA86974  Lupinus sparsiflorus subsp. sparsiflorus F. W. Peirson 1923-5-5 3508 Orange Trabuco Canyon, Santa Ana Mts. 549 Comment
  RSA28731  Lupinus sparsiflorus subsp. sparsiflorus R. S. Woglum 1938-5-8 1614 Orange Ortega Hwy, Santa Ana Mts Comment
  RSA414281  Lupinus sparsiflorus subsp. sparsiflorus E. Crow 1929-4-7 301 Orange Corona skyline Drive, Santa Ana Mts Comment
  RSA86962  Lupinus sparsiflorus subsp. sparsiflorus F. W. Peirson 1923-3-18 s.n. Orange Cypress Canyon, Santa Ana Mts. 122 Comment
  IRVC2350  Lupinus succulentus Ed Hazen 1965-4-1 HS 0417 Orange Trabuco Canyon Santa Ana Mountains Comment
  RSA734641  Lupinus succulentus A. C. Sanders, Fred M. Roberts 2008-3-25 34573 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
  RSA88903  Lupinus succulentus E. K. Balls 1954-3-1 18850 Orange Botanic Garden, Santa Ana Canyon Comment
  UC1129752  Lupinus succulentus A. Lewis Mar 1934 348 Orange San Juan Hills; Corona Quad., San Juan Hills 396 Comment
  UCR191456  Lupinus succulentus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34634 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
  RSA598921  Lupinus truncatus Scott D. White 1997-3-28 4851 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  IRVC15186  Lupinus truncatus Gordon A. Marsh, K. Conrey 1975-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam Southern Coastal Comment
  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
  SD248500  Lycium brevipes R. E. Jr. Riefner 2012-6-22 12 273 Orange City of Newport Beach, Corona del Mar, Little Corona Beach, vicinity of Poppy Ave. and Ocean Blvd. 3 Comment
  CAS-BOT-BC233469  Lycium californicum Helen D. Geis 1902-1-1 581 Orange Laguna Beach Comment
  LA209655  Lycium californicum B. R. Lower; 1954-4-25 sn Orange Laguna Beach Comment
  SD237629  Lycium californicum T. B. Salvato 2010-9-27 5101 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) 52 Comment
  IRVC29712  Lycopersicon esculentum Mark A. Elvin, Barry S. Nerhus 2006-11-4 5248 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA0014844  Lythrum californicum Scott D. White 1998-5-31 6570 Orange University of California Irvine Campus, Southwest of Farm School site (now proposed as Student Rec. Ctr.). 37 Comment
  UC73416  Lythrum californicum E. A. Zumbro 1902-1 389 Orange Orange County Comment
  RSA759166  Madia gracilis A. C. Sanders, Mitch Provance 2008-5-20 35390 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC206252  Malacothamnus fasciculatus C. B. Wolf 1931-7-25 1166 Orange Along the road at north side of the Pear Orchard, Rancho Santa Ana, Santa Ana Can. 121 Comment
  CAS-BOT-BC206253  Malacothamnus fasciculatus C. B. Wolf 1931-7-25 1166 Orange North side of Pear Orchard, Rancho Santa Ana, Santa Ana Canyon 121 Comment
  CAS-BOT-BC206258  Malacothamnus fasciculatus H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  POM201634  Malacothamnus fasciculatus L. M. Booth 838 Orange Santa Ana Canyon. Comment
  RSA433315  Malacothamnus fasciculatus F. R. Fosberg 1931-6-21 S- 5096 Orange Lower Santiago Canyon. Comment
  UCR103710  Malacothamnus fasciculatus B. G. Pitzer, T. Tennant 1997-11-8 3364 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  UCR73130  Malacothamnus fasciculatus Scott D. White 1992-9-23 848 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  LA41778  Malacothamnus fasciculatus var. fasciculatus Louis C. Wheeler; 1932-7-9 941 Orange Santa Ana River 5 mi. below Prado 152 Comment
  OBI5977  Malacothamnus fasciculatus var. fasciculatus Carl B. Wolf 1931-7-25 2294 Orange N side of the Pear Orchard, Rancho Santa Ana, Santa Ana Can. 122 Comment
  SBBG83229  Malacothamnus fasciculatus var. fasciculatus B. Pitzer, L. F. LaPre 1986-10-20 322 Orange Trabuco Rd at intersection with Sand Cyn Avenue, NW of El Toro Marine Air Station 79 Comment
  UCR193543  Malacothrix saxatilis A. C. Sanders, Fred M. Roberts 2008-7-3 35669 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR80000  Malacothrix saxatilis Scott D. White 1992-10-20 973 Orange Vicinity of city of Brea, Immediately north of Carbon Canyon Rd & east of Placentia Avenue +-1mi (air) SSEof Tonner Canyon. 183 Comment
  RSA721107  Malacothrix saxatilis Minor Warne 1934-4-28 s.n. Orange Highway Head Peters Canyon Comment
  RSA714450  Malacothrix saxatilis var. saxatilis R. E. Riefner 2000-9-19 00 -739 Orange City of Dana Point, west of Pacific Coast Highway., vicinity of Salt Creek Park and Ritz Carlton Hotel. 0 Comment
  RSA234493  Malacothrix saxatilis var. tenuifolia James Henrickson 1970-7-25 5039 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
  CDA1091  Malephora crocea D. G. Kelch 2006-12-9 6 .543 Orange Along Newport Back Bay Dr. in side canyon. Comment
  RSA678507  Malephora crocea Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1106 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  UCR67012  Malephora crocea A. C. Sanders 1990-10-6 10188 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  IRVC29870  Malephora crocea Mark A. Elvin, D. Kelch 2006-12-9 5297 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  LA62901  Malosma laurina W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA12784  Malosma laurina Percy C. Everett 1934-10-4 6209 Orange N side of Irrigation Canal, opp. Orange Co. Plant Sanctuary, Rancho Santa Ana. 122 Comment
  RSA734919  Malosma laurina A. C. Sanders, Fred M. Roberts 2008-6-17 35462 Orange Lomas de Santiago, Loma Ridge on Hicks Canyon Haul Road, c. midway between Foothill Transportation Corridor and Santiago Cyn. Rd. 335 Comment
  UC1130499  Malosma laurina A. Lewis May 1934 450 Orange 1/2 mi. w. Long Canyon; Cleveland Nat'l Forest, Elsinore Quad. 914 Comment
  UCD116863  Malosma laurina Sue A. Thompson; John E. Rawlins 1988-8-27 5257 Orange Cleveland National Forest: 3.8 mi E of San Juan Hot Springs on CA 74. 370 Comment
  UCD116410  Malva assurgentiflora F. C. Boutin 1967-4-23 1623 Orange Santa Clemente Island: at N end of island SW of airstrip runway ca. 25 mi. from coast. Comment
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Nov 27 2013
  OBI30254  Malva parviflora Sally Hawn 1971-4-6 80 Orange In waste field E of 11031 Meads, Orange 152 Comment
  RSA649333  Malva parviflora C. J. Parenti 1971-3-7 D 15 Orange Collected in empty lot between West and Walnut Streets. About 1000 ft. from the Disneyland Hotel. 30 Comment
  RSA433882  Malvella leprosa Albert J. Perkins 1912-8-6 s.n. Orange Anaheim. Comment
  UCR258350  Malvella leprosa Fred M. Roberts 2014-4-21 7849 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  CDA35815  Malvella leprosa Robert L. Pope 1957-5-17 Orange [No other data] 0 Comment
  RSA734010  Marah macrocarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34619 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  UCR99891  Marah macrocarpa Scott D. White 1996-12-20 4633 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA652419  Marah macrocarpa Harvey Kennedy 1949-2-20 s.n. Orange Newport Beach, back bay. 9 Comment
  UCR193277  Marrubium vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35511 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR232927  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
  RSA0126962  Matricaria discoidea R. E. Riefner 2017-4-10 17 -164 Orange City of San Clemente, San Clemente State Beach, SW area W of Concordia Elementary School. 32 Comment
  UCSB42066  Matthiola incana McEnulty, Mary 1979-6-7 Orange Cliff on south side of Crescent Bay, Newport Beach 7 Comment
  UC1607983  Medicago Donald G. Nelson 1935-3-30 200 Orange hills e. Fullerton (at head of Raymond Ave.) 76 Comment
  IRVC2381  Medicago polymorpha L. Aldis 1965-3-1 s.n. Orange Costa Mesa; Senate St. Southern Coastal Comment
  IRVC2385  Medicago polymorpha Polly Brecht 1965-4-3 s.n. Orange Newport Beach; Redlands Dr. and Cherry Tree Lane. Southern Coastal Comment
  RSA678512  Medicago polymorpha Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1129 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCR103219  Medicago polymorpha Scott D. White 1997-2-19 4692 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR156571  Medicago polymorpha J. B. Anderson 1966-4-16 581 Orange South Coast, Corona Del Mar: Buck Gully, 'Little Corona Beach 15 Comment
  UCR192632  Medicago polymorpha A. C. Sanders, Fred M. Roberts 2008-3-25 34522 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  OBI17603  Medicago polymorpha Kurt R. Neisess 1975-12-19 s.n. Orange From a back yard lawn in Yorba Linda Comment
  POM348036  Medicago polymorpha Albert J. Perkins 1912-10-15 s.n. Orange Peatlands near head Newport Bay. Comment
  RSA184191  Medicago polymorpha I. L. Wiggins 1966-3-16 20524 Orange 1 mile above Rangers house Firestone Boy Scouts Reservation. Comment
  RSA737236  Medicago polymorpha R. E. Riefner 2008-9-5 08 -278 Orange City of Lake Forest, 0.2 miles W of Portola Pwy along Aliso Creek. 222 Comment
  SD241018  Medicago rigidula A. C. Sanders, Fred M. roberts 2008-3-25 34527 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  CAS-BOT-BC532580  Medicago truncatula A. C. Sanders; Fred M. Roberts 2008-4-8 34738 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 457 Comment
  SBBG126176  Medicago truncatula A. C. Sanders with F. M. Roberts 2008-3-25 34521 Orange Weir Cyn, 4 mi ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
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Feb 28 2016
  UCR208445  Medicago truncatula R. E. Riefner Jr. 2007-4-1 07- 166 Orange South Coast, city of Laguna Niguel, Laguna Niguel Regional Park, general vicinity of La Paz Road at Aliso Creek 230 Comment
  RSA746476  Medicago truncatula R. E. Riefner Jr. 2007-4-12 07 -178 Orange City of Orange, SW portion of Irvine Regional Park; Irvine Park Rd. 188 Comment
  UCR187356  Melaleuca citrina R. E. Riefner Jr. 2005-11-23 05- 773 Orange South Coast, Newport Beach (city), Upper Newport Bay, east of Jamboree Rd and south of Bayview Way at Bonita 6 Comment
  CAS-BOT-BC281592  Melica imperfecta Helen D. Geis 1902-1-1 555 Orange Unspecified Comment
  CAS-BOT-BC281593  Melica imperfecta Helen D. Geis 1902-1-1 s.n. Orange Unspecified Comment
  POM182773  Melica imperfecta Marcus E. Jones 1925-3-13 s.n. Orange North end, Santa Ana Canyon Comment
  RSA542365  Melica imperfecta Fred M. Roberts 1988-4-8 3896 Orange Lomas de Santiago: Loma Ridge, Central Linestone Canyon, 4.1 kilometers NNW Bolero Lookout. 323 Comment
  RSA747626  Melica imperfecta Fred M. Roberts 2008-4-16 6906 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  SD245370  Melilotus albus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49585 Orange Santa Ana Mountains: San Juan Canyon aat Lower Picnic Camp, just below Ortega Highway (74). Margins of creek. Comment
  IRVC22205  Melilotus indicus Fred M. Roberts, G. A. Marsh 1985-4-3 1620 Orange Irvine; Irvine Ranch, 1.2km W UCI campus center. Southern Coastal 22 Comment
  IRVC2409  Melilotus indicus S. Holloway Apr 1965 s.n. Orange Corona del Mar. Newport Beach Comment
  IRVC2429  Melilotus indicus H. Ellis 1965-3-18 s.n. Orange Newport Beach; Corona del Mar, Cameo Highlands. Southern Coastal Comment
  UCD108069  Melilotus indicus E. Frost 1996-5-11 14 Orange Newport Back Bay, 70 yards in along bike path. 7 Comment
  UCR191440  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-4-8 34722 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA400  Melilotus indicus J. T. Howell 1927-7-18 429 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA594802  Melinis repens Fred M. Roberts, Terasa Bruckenstien 1992-3-19 4837 Orange Rancho Mission Viejo, San Juan Creek east of San Juan Capistrano and just north of Ortega Highway bridge, 3.6 km. SSW Median Rancho Survey Mark., UTM Z11 37 08 900m N, 4 42 100m E 49 Comment
  RSA0031757  Mentha citrata Robert F. Thorne 1977-11-21 50817 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. Comment
  SEINET7073428  Mentzelia affinis A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UCR193464  Mentzelia micrantha A. C. Sanders, T. B. Salvato 2008-5-13 35354 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
  RSA5811  Mesembryanthemum crystallinum C. B. Wolf 1932-6-28 3771 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA640309  Mesembryanthemum crystallinum L. C. Wheeler 1931-6-8 s.n. Orange Balboa Comment
  RSA74871  Mesembryanthemum crystallinum Elroy Robinson 1935-6-28 s.n. Orange San Clemente, along Santa Fe Railway. Comment
  UCSB49276  Mesembryanthemum crystallinum Hibbard, Doug 1977-3-4 Orange Black Bay Rd., 0.5 mile from its junction with Jamboree Blvd. Newport Beach Comment
  CAS-BOT-BC435276  Mesembryanthemum nodiflorum Carl B. Wolf 1927-7-23 663 Orange Juste no. of San Clemente Comment
  SEINET11942235  Mesembryanthemum nodiflorum J. F. Bright, Wyman, C. 1933-1 8222 Orange Comment
  RSA685937  Microseris douglasii subsp. platycarpha Fred M. Roberts, David E. Bramlet 2003-3-27 5621 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Chistianitos Cyn., 0.79km N Sycamore Gate, 0.23km W Chistianitos Rd. 122 Comment
  UCR222413  Microseris heterocarpa D. E. Bramlet, Fred M. Roberts 2008-4-4 4174 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, East Loma Ridge above Limestone Canyon, 1.57 km west of Limestone Cyn. and 795 m east of Round Canyon 533 Comment
  RSA751989  Microseris lindleyi Fred M. Roberts, Eliza Maher 2008-3-26 6796 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCR192480  Microseris lindleyi A. C. Sanders, Fred M. Roberts 2008-3-25 34518 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UC943905  Mimulus M. Van Rensselaer 1944-11-26 1876 Orange about 2 mi ne Laguna Beach; Laguna Canyon Comment
  RSA598961  Mimulus aurantiacus Scott D. White 1997-3-28 4833 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  OBI9518  Mimulus aurantiacus var. puniceus H. E. McMinn 1949-6-9 5617 Orange About 3 mi E of San Juan Capistrano on hwy 74 Comment
  RSA33814  Mimulus aurantiacus var. puniceus N. C. Cooper 1944-6-4 1341 Orange San Juan Canyon. 305 Comment
  RSA650616  Mimulus brevipes R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA749355  Mimulus brevipes Fred M. Roberts 2008-4-22 6918 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
  RSA0054841  Mimulus brevipes Keith E. Hoffmaster 1934-4-8 150 Orange Santa Ana mts. Comment
  RSA790706  Mimulus brevipes L. C. Hull 1934-4-8 15 Orange Laguna Hills. Comment
  RSA749693  Mimulus cardinalis A. C. Sanders, Fred M. Roberts 2008-7-16 35832 Orange Lomas de Santiago, canyon c. 0.12 mi. below Dripping Spring, c. 7.5 mi. ESE of Tustin 360 Comment
  UCSB48200  Mimulus cardinalis Roberts, Fred 1981-6-26 Orange Sant Ana Mts; Viejo Canyon; 0.1km N Calif. Rte. 74; 2.7km E San Juan Gurad Station 291 Comment
  POM256712  Mimulus clevelandii W. Pequegnat 1940-6-15 s.n. Orange Trabuco Peak 1220 Comment
  RSA698953  Mimulus guttatus J. R. Bruff 1930-10 19 Orange Santa Ana River Bed. Comment
  UCR174021  Mimulus guttatus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33012 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCSB47585  Mimulus palmeri Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail; 1.9km WNW of Trabuco Peak; Santa Ana Mountains 1250 Comment
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Jun 22 2019
  UCR175448  Mimulus pilosus Mark A. Elvin 2005-9-2 4491 Orange Peninsular Ranges, Santa Ana Mtns: along San Juan Creek c. 1.0 km upstream from San Juan Hot Springs, off Ortega Hwy (74) near the bridge 259 Comment
  RSA698204  Mirabilis laevis Minor Warne 1934-03 s.n. Orange Laguna Canyon Forks Comment
  RSA731992  Mirabilis laevis A. C. Sanders, L. Farley, F. M. Roberts, D. E. Bramlet 2008-4-1 34651 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  UCR267183  Mirabilis laevis var. crassifolia Fred M. Roberts 2010-3-12 7178 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  UCD98396  Mirabilis multiflora G. H. Vansell 1933-6-30 s.n. Orange location unknown. 914 Comment
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Sep 26 2020
  UC537290  Monanthochloe littoralis Lawrence M. Booth 1932-5-12 1046 Orange Newport Bay Comment
  UCD86056  Monanthochloe littoralis L. M. Booth 1932-7-27 1318 Orange Newport Bay. Comment
  SD119375  Monardella breweri subsp. lanceolata Reid Moran 1977-6-13 24236 Orange Willow Canyon, tributary of Laguna Canyon. 124 Comment
  RSA191948  Monardella hypoleuca Robert F. Thorne 1963-7-26 32858 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest. 732 Comment
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Aug 13 2012
  RSA759531  Monardella hypoleuca Robt. Allen, D. Taylor 2008-7-19 s.n. Orange Along North Main Divide Road, 0.2 road miles S of junction with Bedford Rd, 3.5 road miles N of junction with Maple Springs Road, 0.84 air miles WNW of Bald Peak. Labeled on USGS Topo map as Water Tank, near BM 3702. 1142 Comment
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Aug 13 2012
  IRVC25103  Monardella hypoleuca subsp. hypoleuca Fred M. Roberts, Gordon A. Marsh 1986-8-27 3115 Orange Modjeska Peak; Main Divide Truck Trail; SW ridge; 1.0km SW summit Santa Ana Mountains 1530 Comment
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Aug 13 2012
  CHSC67673  Monardella hypoleuca subsp. intermedia 1988-6-22 Orange In hort, John Sorenson garden. Plant from Santa Ana. Comment
  SD239801  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31613 Orange Santa Ana Mountains: near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak (Santiago Peak 7.5'Q) 997 Comment
  UC718448  Monardella hypoleuca subsp. intermedia Carl B. Wolf 1936-6-22 8003 Orange 3 mi above F.S. gate Santiago Canyon (along truck trail to Modjeska Pk.); Santa Ana Mts 762 Comment
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Jan 7 2018
  IRVC28919  Monardella lanceolata Fred M. Roberts, Carol Roberts 1988-6-10 4092 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Pk., W slope, 1.1km SW of summit. Peninsular Ranges 1524 Comment
  LA205754  Monardella macrantha subsp. hallii W. Pequegnat; 1938-6-15 sn Orange Santa Ana Mountains, Bear Springs Comment
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Jan 29 2015
  LA57164  Monardella macrantha subsp. hallii Carl B. Wolf; 1933-8-24 5406 Orange Santa Ana Mountains, along main divide motorway between Bedford Peak and Santiago Peak Comment
  RSA7408  Monardella macrantha subsp. hallii Carl B. Wolf 1933-8-24 5406 Orange Santa Ana Mountains:along main divide motorway on west slope of Modjeska Peak 1372 Comment
  UCR238208  Monardella viminea Mark A. Elvin 2002-7-13 s.n. Orange Southern Coast, Irvine; UCI Arboretum 15 Comment
  IRVC26702  Moraea karroica Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3168 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA790096  Muhlenbergia microsperma R. E. Riefner Jr. 2011-8-16 11 -99 Orange Newport Beach, Orange County Parks and Recreation lands, along Newport Coast Drive, between Vista Ridge Rd. & Alteza Rd. 281 Comment
  POM12404  Najas guadalupensis Philip A. Munz 1922-9-2 6347 Orange Ponds in Laguna Canyon 46 Comment
  CAS-BOT-BC219358  Nama stenocarpa Munz; Street; Williams 1919-5-4 2681 Orange Laguna Beach Region. Laguna Canon [Canyon] Comment
  POM6291  Nama stenocarpa P. A. Munz, L. T. Street, G. Williams 1919-5-4 2681 Orange Laguna Canyon. Comment
  RSA683164  Nassella lepida Scott D. White, Amanda Duchardt 2003-4-10 9016 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  SEINET6854814  Nassella lepida Fred M. Reed 1929-7-10 s.n. Orange Laguna Beach. Comment
  CAS-BOT-BC260105  Nassella pulchra John Thomas Howell 1927-6-9 2467 Orange N side, Santa Ana Canon [Santa Ana Canyon] 152 Comment
  RSA542547  Nassella pulchra Fred M. Roberts 1988-2-9 3782 Orange Lomas De Santiago: Loma Ridge, 1.5km N Bee Survey Mark., UTM 373 3700m N, 435 200m E 385 Comment
  RSA653208  Nassella pulchra David Barrios 1991-5-8 20 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
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Jul 23 2008
  UCD87441  Nassella pulchra A. A. Beetle 1942-4-19 3103 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  RSA0028025  Nasturtium officinale Fred M. Roberts 2012-9-6 7698 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  RSA697462  Nasturtium officinale R. H. McArthur 1934-4-2 s.n. Orange Wintersburg drainage ditch. In shallow water. Comment
  RSA703024  Nasturtium officinale R. E. Riefner Jr. 2004-8-27 4 -392 [b] Orange City of Irvine, San Diego Creek at 405 freeway. 50 Comment
  UC1618099  Navarretia Donald G. Nelson 1935-7-15 296 Orange Costa Mesa, Tracy locality Costa Mesa; , Tracy locality Comment
  RSA0013585  Nemacladus ramosissimus D. E. Bramlet, Jim Harrison 2008-4-3 4156 Orange South Bee Cyn. Bowerman landfill site, 1.2km south of Bee Cyn access road, & 122n west of the active landfill. Comment
  RSA704834  Nemophila menziesii Francis Battey s.n. Orange Laguna Hills. Comment
  RSA12926  Nemophila menziesii var. integrifolia Carl B. Wolf 1935-4-7 6316 Orange San Juan Canyon, Ortega Hwy, 2 miles east Orange County. 762 Comment
  IRVC148  Nephrolepis cordifolia Lorraine Aldis 1965-3-30 HS 542 Orange Costa Mesa; Senate Street. Southern Coastal Comment
  RSA708532  Nerium oleander Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6107 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
  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
  RSA0054917  Nicotiana glauca Adell Wilson 1932-4-19 s.n. Orange Laguna Canyon. Comment
  JEPS12369  Nicotiana quadrivalvis Alice King Apr 1908 Orange Santiago Creek; Santa Ana Mountains Comment
  RSA0060156  Nicotiana quadrivalvis Fred M. Roberts 1999-4-21 5177 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
  RSA0060158  Nicotiana quadrivalvis A. C. Sanders, Fred M. Roberts 2008-4-22 34986 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mi. NE of Rattlesnake Reservoir. 213 Comment
  SEINET7067536  Nicotiana quadrivalvis A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash northwest of Orange. Coordinate datum: NAD27. UTM Zone 11, 418667mE, 3739612mN. Comment
  RSA615785  Nolina cismontana James C. Dice, Oberbauer 1986-5-3 651 Orange 0.2 km west of Trabuco Canyon. 365 Comment
  UCR208437  Nolina cismontana R. E. Riefner Jr. 2007-6-14 07- 256 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, west fork Fremont Canyon, Donaldson Ranch area 381 Comment
  RSA734215  Nolina parryi Keith E. Hoffmaster 1936-5-3 725 Orange Live Oak Canyon, Santa Ana Mts Comment
  JEPS11321  Nuttallanthus texanus Alice King March, 1908 Orange Anaheim Plains Comment
  JEPS89240  Nuttallanthus texanus Rimo Bacigalupi and P. C. Hutchison 1962-3-16 8232 Orange 2 mi n of Doheny Beach State Park (along U.S. 101); U.S. 101 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
  CAS-BOT-BC171489  Oenothera californica Carl B. Wolf 1931-3-25 1935 Orange Along the Santa Fe R.R., 1 mile west of Atwood 91 Comment
  RSA733637  Oenothera dentata L. C. Hull 1934-4-8 s.n. Orange Laguna Hills. Comment
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Jun 24 2020
  RSA1304  Oenothera elata subsp. hirsutissima J. T. Howell 1928-9-6 1205 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  UC1007119  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14171 a Orange 5 mi s Garden Grove Comment
  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
  RSA771511  Oenothera micrantha Keith E. Hoffmaster 1927-4-2 465 Orange Santa Ana Mountains [county not specified] Comment
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Jun 10 2012
  RSA0125894  Oenothera speciosa Fred M. Roberts 2012-5-9 7550 Orange Lake Forest: near Serrano Creek, utility road, 0.3 km SSW intersection of Commerce Centre and Dimension Drives. 206 Comment
  UCR239649  Oenothera speciosa Fred M. Roberts 2012-5-9 7550 Orange Santa Ana Mountains, Lake Forest, near Serrano Creek utility road, 0.3 m south-southwest of intersection of Commercentre and Dimension Drives 206 Comment
  CDA6652  Oldenlandia corymbosa W. Humphrey 1973-7-19 Orange 7231 Irvine Boulevard, Santa Ana. 0 Comment
  JEPS25886  Oligomeris linifolia L. M. Booth 1932-5-24 1097 Orange Newport Bay Comment
  RSA80683  Oligomeris linifolia F. W. Peirson 1925-4-11 5744 Orange 5 miles southeast of Laguna Beach. Comment
  UC729952  Oligomeris linifolia Carl B. Wolf 1932-6-28 3792 Orange Bryant Ranch Comment
  CAS-BOT-BC427454  Oligomeris linifolia Bradshaw 1902-1-1 s.n. Orange Arch Beach Comment
  RSA680344  Oncosiphon piluliferum Scott D. White, Jeff Lincer 2003-7-7 9616 Orange Former El Toro Marine Corps Air Stn. East of El Toro Marine Sch. and Irvine Blvd.; site of former dump. 140 Comment
  RSA792124  Oncosiphon piluliferum R. E. Riefner Jr. 2011-5-20 11 -57 Orange Newport Beach, Coastal Peak Park, East Coastal Peak Road at Ridge Park Road 305 Comment
  OBI37768  Opuntia X occidentalis D. L. Walkington, D. J. Pinkava, G. Smith and M. G. McLeod, M. G. McLeod 1971-5-9 MGM 443 (=DLW316) Orange El Modena Comment
  RSA562721  Opuntia X occidentalis Steve Boyd, Timothy S. Ross 1992-5-19 7424 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
  UC1313041  Opuntia X occidentalis Janet McIntosh 1966-4-9 17 Orange State Hwy 74 20 mi ne San Juan Capistrano Comment
  SD212539  Opuntia dejecta R. E. Riefner Jr. 2006-7-23 06 312 Orange City of Newport Beach, Upper Newport Bay, North shore of Newport Bay, West circa 0.25 miles from intersection of Bayview Way and Bayview Place 10 Comment
  CAS-BOT-BC56216  Opuntia ficus-indica John Thomas Howell 1927-6-22 2574 Orange Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC56838  Opuntia ficus-indica J. C. Lee 1966-4-9 27 Orange Field redacted by CAS, contact the data manager for more information 304 Comment
  POM285345B  Opuntia littoralis Lyman Benson 1955-10-17 15600 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  RSA503510  Opuntia littoralis E. W. Lathrop 1977-7-8 7667 Orange Santa Ana Mountains; 1 mile west of San Juan F.S. Ranger Station on the Ortega Hwy. Comment
  RSA459611  Opuntia littoralis var. austrocalifornica M. B. Dunkle 1933-5-30 3583 Orange Santa Ana River Canyon Comment
  RSA6610  Opuntia oricola B. D. Stark 1933-1-21 4520 Orange San Clemente. 15 Comment
  UCR217283  Opuntia oricola Mark A. Elvin 2003-1-26 2234 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 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
  CAS-BOT-BC58075  Opuntia vaseyi John Thomas Howell 1927-6-22 2574 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  OBI35850  Orobanche parishii Steve Boyd 1982-7-26 s.n. Orange Rancho Mission Viejo. Ashbury Cyn N of Arroyo Trabuco Comment
  POM202722  Orthocarpus purpurascens L. M. Booth 1932-5-12 1048 Orange Newport Beach Comment
  RSA0054847  Orthocarpus purpurascens Keith E. Hoffmaster 1927-4-2 531 Orange Santa Ana Mts. San Onofre. Comment
  UC171038  Osmadenia tenella H. M. Hall 1913-5-28 9406 Orange Santiago Canyon Comment
  RSA458994  Osmorhiza brachypoda Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak. Comment
  SBBG52718  Osmorhiza brachypoda C. Davidson 1977-5-18 5609 Orange Santiago Pk (on Orange-Riverside Co line); Santa Ana Mtns 1706 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
  UCSB3548  Oxalis californica Kamb, Peter 1948-6-19 Orange Holy Jim Canyon, Santa Ana Mtns. 609 Comment
  UCSB48068  Oxalis pes-caprae Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point: hills, 1.0km N Dana Hills High School; 1.9km W Marco Forster Junior High School 100 Comment
  RSA302  Paeonia californica J. T. Howell 1928-2-6 809 Orange Claymine Canyon, Sierra Peak, Santa Ana Mts. 244 Comment
  RSA588782  Paeonia californica Fred M. Roberts, Nicole Orlik 1990-4-11 4716 Orange Santa Ana Mountains: East Fork Upper Long Canyon, along Main Divide Truck Trail, 4.4 kilometers SE Los Pinos Peak. 750 Comment
  CAS-BOT-BC257126  Pallenis maritima R. E. Riefner, Jr. 2011-7-1 11 -86 Orange City of Newport Beach, rocky beach between Shorecliff Rd. and Cameo Shores Rd. 3 Comment
  RSA797015  Pallenis maritima R. E. Riefner Jr. 2010-1-2 10 -3 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2 Comment
  UC1618048  Panicum acuminatum Donald G. Nelson 1935-4-6 254 Orange e. San Juan Capistrano (200-300 ft. below main hwy., ca. 4 mi. from summit, San Juan Canyon); San Juan Canyon Comment
  RSA724124  Panicum dichotomiflorum subsp. dichotomiflorum R. E. Riefner 2005-9-20 5 -674 Orange City of Huntington Beach, Huntington Central Park at Goldenwest St. 1 Comment
  SEINET11261327  Panicum miliaceum A. C. Sanders, Fred M. Roberts 2008-7-16 35865 Orange Peninsular Range, Santa Ana Mountains, Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon (El Toro 7.5' Q).; 0 358 Comment
  RSA445555  Papaver californicum Gale Sphon 1959-5-2 323 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest Comment
  POM2138  Parietaria hespera var. hespera D. L. Crawford 1916-5-15 991 Orange Languna Canyon. Shade Comment
  RSA699977  Parkinsonia aculeata Anonymous 1933-10-13 s.n. Orange Santa Ana Comment
  RSA725537  Parthenocissus inserta Fred M. Roberts, Robert L. Allen 2007-9-28 6609 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  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
  RSA702938  Paspalum dilatatum Scott D. White 2004-7-7 10604 Orange Laguna Niguel. 61 Comment
  UCSB40900  Paspalum dilatatum Roos, John 1936-10-13 Orange Costa Mesa near Santa Ana Comment
  RSA184118  Paspalum dilatatum I. L. Wiggins 1965-9-26 20258 Orange Along railway right of way on northern outskirts of Yorba Linda, beside Imperial Hwy. near Casa Loma Ave. Comment
  CAS-BOT-BC259735  Paspalum distichum Frank W. Peirson 1924-5-31 4648 Orange Laguna Canon. 350 Comment
  POM12439  Paspalum distichum P. A. Munz 1922-9-2 6352 Orange Ponds in Laguna Canyon 46 Comment
  SD227703  Paspalum distichum Scott D. White, Brian Leatherman 1997-6-12 5333 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca 2 to 4 mi E of I-15 / Hwy 74 jtn. Comment
  RSA724060  Paspalum urvillei R. E. Riefner 2005-11-4 5 -742 Orange City of Lake Forest, Alton Pkwy. at Bertea Rd. 123 Comment
  RSA733049  Paspalum vaginatum R. E. Riefner 2007-10-26 07 -452 Orange City of Laguna Niguel, laguna Niguel Regional Park, vivinity of La Paz Rd. at Aliso Creek. 64 Comment
  RSA680561  Pectocarya linearis Scott D. White 2003-3-21 8815 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 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
  RSA0127410  Pectocarya linearis var. ferocula Fred M. Roberts 2016-3-17 8005 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  RSA0033804  Pedicularis densiflora Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49685 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  JEPS117763  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange Southern Coastal: UCI Arboretum. Comment
  CDA25915  Pelargonium grossularioides Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal; UCI Arboretum Comment
  UCR218456  Pelargonium peltatum Robert DeRuff 1990-1 355 Orange South Coast, Upper Newport Bay, below Eastbluff 12 Comment
  RSA699317  Pellaea andromedifolia Fred M. Roberts, D. E. Bramlet 2003-5-1 5695 Orange Rancho Mission Viejo; Donna O'Neil Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km W of Cristianitos Rd. 110 Comment
  UCR209668  Pellaea andromedifolia Fred M. Roberts 2008-4-16 6908 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  RSA598963  Pellaea andromedifolia var. andromedifolia Scott D. White 1997-3-28 4835 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA739324  Pellaea mucronata Keith E. Hoffmaster 1934-7-13 33 ` Orange Santa Ana Mountains Comment
  CAS-BOT-BC71392  Pellaea mucronata Geo. L. Moxley 1927-5-1 s.n. Orange La Crescenta Comment
  RSA0014064  Pennisetum setaceum Fred M. Roberts 2008-5-30 7015 Orange Lomas de Santiago: Santiago Creek wash, 0.6 km SSE Silverado Sch., Irvine Ranch Conservancy. 314 Comment
  RSA33780  Penstemon centranthifolius N. C. Cooper 1944-6-4 1351 Orange San Juan Canyon, lower camp ground. 457 Comment
  UCR227630  Penstemon grinnellii Robt. L. Allen 2003-6-22 12274 Orange Santa Ana Mountains, west-facing flank of Santiago Peak, along North Main Divide Road 1555 Comment
  SEINET10334604  Penstemon heterophyllus subsp. australis Czarnecki 1966-5-25 113 Orange Old botanical gardens at the Ranco Santa Ana Comment
  RSA407935  Penstemon heterophyllus var. australis N. C. Cooper 1944-6-4 1337 Orange San Juan Canyon. 305 Comment
  RSA539360  Penstemon heterophyllus var. australis Fred M. Roberts, Carol A. Roberts 1988-6-9 4077 Orange Santa Ana Mountains: Main Divide Truck Trail, saddle between Modjeska Peak and Santiago Pk., 0.5 km Ee summit of Modjeska Pk. 1445 Comment
  UC1608268  Penstemon heterophyllus var. australis Steve Boyd and Tim Ross 1992-5-20 7472 Orange western edge of the wilderness in Lucas Canyon (San Mateo Canyon Wilderness, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel bldg)); Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 350 Comment
  RSA0015001  Penstemon spectabilis Fred M. Roberts 2008-5-22 6993 Orange Lomas de Santiago: Santiago Creek wash 0.3 km S Silverado Sch. and 3.8 km NW Bolero Lookout. Irvine Ranch Conservancy. 305 Comment
  RSA798599  Penstemon spectabilis Robert F. Thorne, E. W. Lathrop 1977-5-18 49735 Orange Northern Santa Ana Mountains: Pleasant's Peak Comment
  POM351578  Pentachaeta aurea Theodore Payne 1910-4-18 1931 Orange Santiago Canyon Comment
  RSA696850  Pentachaeta aurea Mabel Harvey s.n. Orange Trabuco Canyon. Comment
  RSA0059338  Pentagramma triangularis L. M. Booth 1932-5-19 1066 Orange Newport Bay Comment
  IRVC14091  Pentagramma triangularis subsp. triangularis B. T. Gittins 1966-11-13 1672 Orange Silverado Canyon, 1mi past historical marker; shaded bank near stream bed. Santa Ana Mountains Comment
  RSA710822  Persea cinerascens R. W. Scora 1997-5-13 5142 Orange Zentmyer Avocado Collection, Field 3, South Coast Field Station, Irvine. 21 Comment
  CAS-BOT-BC413482  Persicaria amphibia Carl B. Wolf 1932-7-7 3835 Orange Bryant Ranch, Bixby Ave., 100 ft. west of Hansen Road (100 ft. W. of S.E. corner of N.E. 40 of N.E. 160 of Sect. 34 T4S R11W) Comment
  RSA588659  Phacelia brachyloba Fred M. Roberts, Carol A. Roberts 1990-5-23 4648 Orange West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5km SE Los Pinos Peak. 756 Comment
  POM7744  Phacelia cicutaria var. hispida Florence Breckenridge 1920-4-17 s.n. Orange Hills north of Laguna. Comment
  RSA734285  Phacelia cicutaria var. hispida A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34627 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 280 Comment
  RSA734814  Phacelia cicutaria var. hispida A. C. Sanders, Fred M. Roberts 2008-3-25 34575 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  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
  UCR192455  Phacelia cicutaria var. hispida A. C. Sanders, Fred M. Roberts 2008-3-25 34575 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
  UCR239653  Phacelia cicutaria var. hispida Fred M. Roberts 2012-4-27 7544 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, 1.5 km west-southwest of Irvine Lake Park Campground and 1.1 km east of Orange County Emergency Operations Center, Hill 1311 311 Comment
  RSA741475  Phacelia cicutaria var. hubbyi R. E. Riefner Jr. 2008-5-30 8 -123 Orange Near City of Orange, Santiago Creek, vicinity of Jackson Ranch Rd. at Santiago Creek Rd., near the power-line crossing, Irvine Ranch Reserve, Management Area 15. Comment
  RSA798544  Phacelia davidsonii Robert F. Thorne, E. W. Lathrop 1977-5-18 49745 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  POM49692  Phacelia distans L. R. Abrams 1901-06 1824 Orange Santiago Peak Trail. 915 Comment
  RSA699578  Phacelia distans Dorothy Sammis s.n. Orange Silverado Canyon Comment
  POM299068  Phacelia distans J. T. Howell 1928-6-24 2590 Orange Olinda. 152 Comment
  RSA113263  Phacelia distans E. K. Balls 1955-4-4 20425 Orange N of Dana Poit off Hwy 101. 46 Comment
  RSA698722  Phacelia distans R. H. McArthur 1924-3-25 s.n. Orange Barranca Bridge - Laguna Road Comment
  RSA699144  Phacelia hispida R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA697787  Phacelia hydrophylloides J. Russell Bruff 1937-7-3 847 Orange Kaiser Ridge above Huntington. Comment
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Nov 5 2020
  RSA648195  Phacelia minor Karl Price 1988-5-7 38 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA735164  Phacelia minor A. C. Sanders, Fred M. Roberts 2008-5-6 35233 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  UCR193499  Phacelia minor A. C. Sanders, T. B. Salvato 2008-5-13 35363 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
  UCR191337  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-4-8 34781 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  RSA697795  Phacelia racemosa Minor Warne 1934-03 s.n. Orange Barrenca near Irvine. Comment
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Apr 13 2016
  RSA0027430  Phacelia ramosissima Fred M. Roberts 2013-7-18 7663 Orange San Joaquin Hills: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill. 52 Comment
  JEPS1031  Phacelia ramosissima var. austrolitoralis L. M. Booth 1932-5-19 1060 Orange Newport Bay Comment
  POM20489  Phacelia suaveolens subsp. keckii P. A. Munz 1923-9-7 7763 Orange Along trail from Holy Jim Canyon to summit of Santiago Peak Comment
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Jul 21 2018
  RSA759206  Phacelia suaveolens subsp. keckii Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, S face, midway down a steep fire break cut from the summit down to the access road. Survey point #60. 1663 Comment
  RSA759254  Phacelia suaveolens subsp. keckii Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, SW arm, along access road that leads up Modjeska Peak, about 20 m NE from junction with Main Divide Truck Trail. Survey point #63 1540 Comment
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Jul 21 2018
  RSA650512  Phacelia tanacetifolia Grant Garland 1948-5-16 s.n. Orange Found off highway 101 below Santa Ana 30 Comment
  IRVC19700  Phalaris aquatica Karlin G. Marsh 1983-5-25 s.n. Orange Sycamore Hills, Laguna Canyon; freshwater marsh between Laguna Canyon laterals 6 & 7. Laguna Beach Comment
  IRVC8439  Phalaris aquatica J. B. Anderson 1966-5-15 642 Orange Upper Newport Bay: along Irvine Avenue at 23rd Street. Southern Coastal Comment
  RSA562734  Phalaris aquatica Steve Boyd, Timothy S. Ross 1992-5-19 7450 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail crossing. 320 Comment
  UCR160531  Phalaris canariensis Robert DeRuff 1992-5-29 427 Orange South Coast, Newport Back Bay, just below the bluff top in the Castaways area 15 Comment
  RSA0127610  Phalaris minor Fred M. Roberts 2016-4-26 8041 Orange Lomas de Santiago: South of Santiago Canyon Road in tributary to Lower Presida Canyon just southwest of Irvine Lake, 2.2 km S Irvine Lake dam spillway and 0.6 km SW Irvine Lake Park. 265 Comment
  RSA770727  Phoenix dactylifera Robert DeRuff 2008-07 570 Orange Upper Newport Bay, between Mariner s Drive and North Star Beach 6 Comment
  UCR888  Pholistoma auritum S. M. Chambers 1970-5-3 13 Orange Carbon Canyon Road, 2 mi SE of La Vida Mineral Springs Comment
  RSA734907  Phoradendron macrophyllum A. C. Sanders, Fred M. Roberts 2008-6-17 35480 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  POM48015  Phyla lanceolata I. M. Johnston 1924-8-29 s.n. Orange 1 mi. N of Los Alamitos. Comment
  RSA660595  Phyla nodiflora R. E. Riefner 2000-8-17 20 -726 Orange NCCP North Ranch Policy Plan Area. Silverado Creek near Forest Station. 328 Comment
  CAS-BOT-BC452024  Phyllospadix torreyi L. R. Abrams 1917-6-25 6579 Orange Balboa Comment
  RSA384024  Phyllospadix torreyi Gigas 1832-6-26 15492 Orange Laguna Beach. Comment
  RSA684059  Phyllospadix torreyi E. Yale Dawson 1958-1-5 18105 Orange E side of Crystal Cove. Station no 42. 120 ft from shore base point. Comment
  UC1974774  Phyllospadix torreyi Alison Kendall 2003-5-20 Orange Crystal Cove Comment
  UCR19247  Phyllospadix torreyi John C. Roos 1960-8-27 s.n. Orange Dana Point Comment
  RSA33542  Phyllospadix torreyi N. C. Cooper 1942-11-8 2019 Orange Laguna Beach. Comment
  RSA0127348  Physalis crassifolia Fred M. Roberts 2016-5-3 8051 Orange City of Irvine: San Joaquin Hills, Turtle Rock Community above Ridgeline Road, 0.7 km ESE summit of French Hill. 107 Comment
  CDA25206  Picris echioides A. C. Sanders, Fred M. Roberts 2008-8-7 35993 Orange Peninsular Range; Santa Ana Mountains.; Lower Weir Canyon, at narrow gorge c. 0.6 mile above mouth of canyon at Irvine Ranch gate. Comment
  IRVC21696  Picris echioides Fred M. Roberts 1984-8-6 1367 Orange UC Irvine, along Adobe Circle Road, 0.9km ENE campus center; 2.3km W French Hill, Irvine 30 Comment
  UCSC000843  Picris echioides I. J. Condit 2008-7-25 s.n. Orange Huntington Beach Comment
  POM281848  Pilularia americana H. H. Tracy 1935-3-31 s.n. Orange Costa Mesa 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
  UC545832  Pilularia americana H. H. Tracy 1935-4-10 Orange n Costa Mesa Comment
  RSA175269  Pinus attenuata Robert F. Thorne 1963-7-26 32824 Orange Trabuco District, Santa Ana Mts., Cleveland National Forest. 1159 Comment
  MACF024423  Pinus canariensis Roberta Tiedman 1977-4-27 Orange In front of the Letters and Sciences building. Comment
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Nov 17 2015
  MACF029432  Pinus coulteri Robert L. Allen; Heather E. Wendel; Xanic J. Rondon; Laurie A. Clarke 2001-7-13 12242 Orange Santa Ana Range, San Juan Canyon, 3.7 road miles E of San Juan Guard Station following Ortega Hwy SR74. Lower San Juan Picnic Area, SW of region of main picnic area 443.7 Comment
  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
  RSA730998  Pinus halepensis Fred M. Roberts 2007-1-19 6500 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  UCR186587  Pinus halepensis Robert DeRuff 1995-9-24 240 Orange Southern Coast, Newport Beach, Newport Back Bay, Eastbluff 6 Comment
  UCR194193  Pinus sabiniana A. C. Sanders 2008-7-3 35716 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  RSA725540  Piptatherum miliaceum Fred M. Roberts, Robert L. Allen 2007-9-28 6606 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  UCR98242  Piptatherum miliaceum Scott D. White 1997-3-28 4826 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UCR210311  Pistacia A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37202 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., near Agustine Staging Area at south foot of Blue Diamond Haul Rd. bridge over Santiago Canyon Rd. 253 Comment
  UCR188937  Pittosporum undulatum Robert DeRuff 2006-1 566 Orange Newport Beach, Upper Newport Bay, Eastbluff 30 Comment
  UCR189552  Pittosporum undulatum Fred M. Roberts 2007-10-29 6618 Orange South Coast, Niguel Hill, Laguna Niguel. Seaview Park, 1.3 km ENE of Aliso Peak 265 Comment
  UCR99861  Pityrogramma triangularis Scott D. White 1996-12-20 4630 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  SD212526  Plagiobothrys acanthocarpus R. E. Riefner 2006-4-12 06 116 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Road 46 Comment
  RSA599652  Plagiobothrys acanthocarpus Fred M. Roberts 1995-4-21 4933 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.5 km ENE French Hill. 52 Comment
  UCR192485  Plagiobothrys canescens A. C. Sanders, Fred M. Roberts 2008-3-25 34511 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC21599  Plagiobothrys canescens Fred M. Roberts 1984-4-24 1354 Orange Wagon Wheel Canyon, 3.0km NE Median Survey Mark; 1.0km NW Bench Mark 422, Wagon Wheel Regional Park 150 Comment
  RSA733873  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-4-8 34742 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCR191345  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-4-8 34742 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR192474  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-3-25 34542 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA681024  Plagiobothrys nothofulvus Fred M. Roberts, D. E. Bramlet 2003-3-13 5577 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  RSA599634  Planodes virginica Fred M. Roberts, Nigel Hancock 1995-5-25 4949 Orange Costa Mesa: Fairview Park, just west of end of Canyon Drive, 0.1 km W Canyon School 24 Comment
  JEPS57451  Plantago arenaria L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2045 Orange North of Newport Beach, across U.S. Highway 101 From Huntington State Beach Comment
  RSA401984A  Plantago erecta Albert J. Perkins 1921-04 s.n. Orange Mesa near Arch Beach, Santa Ana. Comment
  RSA17217  Plantago hirtella var. galeottiana E. R. Johnson 1936-6-26 8006 Orange Rancho Santa Ana, Santa Ana Canyon, SW of Mexican village. 152 Comment
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Aug 19 2011
  SD142765  Plantago indica Marsha Hanson 1998-5-22 Orange Huntington Beach, Bolsa Chica Ecological Reserve, west side of lagoon, path by highway Comment
  RSA764  Plantago major J. T. Howell 1927-7-18 433 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UC1618068  Plantago ovata Donald G. Nelson 1935-3-30 194 Orange On Tonner lease, mouth of Brea Canyon. Comment
  JEPS4909  Plantago subnuda Lawrence M. Booth 1932-6-17 1208 Orange Bolsas Creek Comment
  RSA424275  Plantago subnuda Anstruther Davidson 1910-4-1 s.n. Orange Corona Del Mar Comment
  RSA0126618  Platanus X acerifolia Fred M. Roberts 2012-4-24 7495 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
  SD236357  Platanus acerifolia A. C. Sanders, Fred M. Roberts 2008-8-7 35976 Orange Peninsular Range; Santa Ana mountains: lower Weir Canyon , at narrow gorge c. 0.6 miles above moth of cyn at Irvine Ranch gate. 185 Comment
  RSA698371  Platanus racemosa Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  SEINET12102790  Platystemon californicus Unknown 1884-1 s.n. Orange Anaheim Comment
  CAS-BOT-BC356094  Plecostachys serpyllifolia R. E. Riefner, Jr. 2009-7-18 09 -151 Orange City of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort 2 Comment
  CDA7064  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Lane and Polaris Drive. Comment
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Dec 13 2012
  UCR229285  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-6-25 11- 73 Orange South Coast, city of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby Street 7 Comment
  UCR238457  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09- 151 Orange South Coast, city of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort 2.5 Comment
  UCR247516  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-7-9 08- 220 Orange South Coast, Laguna Beach, bluff area west of West St and Pacific Coast Hwy 11 Comment
  RSA731530  Plecostachys serpyllifolia R. E. Riefner 2006-7-26 06 -319 Orange City of Irvine, along N side of Irvine Blvd. at SR 133 on-ramp. 62 Comment
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Dec 13 2012
  UC537028  Pluchea odorata var. odorata Lawrence M. Booth 1932-7-19 1272 Orange Bolsas Marsh Comment
  UC75889  Pluchea odorata var. odorata E. A. Jumbro 1902-1 381 Orange Comment
  UCR67014  Pluchea purpurascens A. C. Sanders 1990-10-6 10185 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  RSA0027436  Poa annua Fred M. Roberts 2012-7-18 7677 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
  IRVC15481  Poa scabrella Bruce Reynolds 1965-4-19 s.n. Orange Newport Beach; Corona del Mar, Corona Del Mar High School. Southern Coastal Comment
  IRVC24561  Poa secunda Fred M. Roberts 1986-4-11 2782 Orange San Juan Canyon, Hwy 74, 1.2km SSW Lower San Juan Picnic Ground, Santa Ana Mountains 378 Comment
  IRVC25406  Poa secunda Fred M. Roberts 1987-4-3 3330 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
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Feb 17 2017
  RSA798603  Poa secunda R. F. Thorne, E. W. Lathrop 1977-5-18 49746 Orange Santa Ana Mountains: summit of Santiago Peak 1733 Comment
  UCR170300  Poa secunda J. B. Anderson 1966-5-3 636 Orange Santa Ana Mountains, Silverado Canyon, Modjeska Peak Road 1372 Comment
  IRVC28641  Polygala cornuta var. fishiae Mark A. Elvin, A. C. Sanders 2005-9-2 4496 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA759150  Polygala cornuta var. fishiae 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
  UCR113454  Polygala cornuta var. fishiae R. E. Riefner Jr. 2000-6-13 20- 494 Orange Santa Ana Mountains, North Ranch Policy Plan Area, N Fremont Canyon south of Donaldson Ranch, upper W fork of Fremont Canyon drainage 363 Comment
  CAS-BOT-BC414038  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-6-20 3755 Orange Rancho Santa Ana, Santa Ana Canyon situated around administration building 198 Comment
  POM2373  Polygonum coccineum D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  UCR210362  Polygonum hydropiperoides T. B. Salvato, Billy Deane 2006-10-16 1927 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA232239  Polygonum lapathifolium James Henrickson 1970-8-29 5308 Orange 3 miles NE of Huntington Beach in pasture just N of Bolsa Chica Salt Marsh. 0 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
  IRVC3042  Polypodium californicum G. Howard 1965-3-31 HS0571 Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC3044  Polypodium californicum A. S. Boughey, P. Pembrook 1965-6-15 1043 Orange Silverado Canyon, Cleveland Nat. For., near reservoir, stream bank in chaparral, riparian woodland, recently cleared for reservoir. Santa Ana Mountains Comment
  IRVC19535  Polypodium californicum R. L. Allen 1977-2-13 s.n. Orange Viejo Canyon, off Hwy 74, 15.5mi NE San Juan Capistrano; steep, rocky seep above San Juan Creek. Santa Ana Mountains Comment
  IRVC19905  Polypodium californicum Karlin G. Marsh 1983-6-27 Orange head of Bommer Canyon, Irvine Ranch; in a cave. San Joaquin Hills Comment
  SEINET218267 Image available Polypodium californicum Robinson, Crocker 1916-3-28 Orange Santa Ana Mts. Comment
  UCSB62527  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Arch Rock near Corona del Mar 30 Comment
  IRVC14815  Polypogon monspeliensis A. S. Boughey 1968-7-9 399 Orange Upper Santiago Canyon. Santa Ana Mountains 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
  RSA697709  Polypogon monspeliensis Minor Warne 1934-5-11 s.n. Orange Talbert Drainage. Comment
  UCD91234  Polypogon monspeliensis A. A. Beetle 1942-4-19 3101 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  UCD91371  Polypogon monspeliensis Peter H. Raven 1957-9-28 11375 Orange north limits of Surfside. Comment
  UCSB36120  Polypogon monspeliensis Roberts, Dar 1980-5-4 Orange North end of Camino Capistrano Rd., 2nd telephone pole from the end (near the sewage treatment plant) 30 Comment
  RSA731799  Polypogon viridis Fred M. Roberts, Sandy Leatherman 2007-11-9 6638 Orange Santa Ana Mtns.: San Juan Canyon, Lower San Juan Picnic Ground. 408 Comment
  POM48083B  Polystichum imbricans subsp. curtum P. A. Munz 1923-9-7 7754 Orange Santa Ana Mountains 1371 Comment
  CAS-BOT-BC108544  Populus balsamifera R. E. Jr. Riefner 2006-4-8 06 -111 Orange South Coast: San Juan Capistrano (city), San Juan Creek at La Novia Ave. (San Juan Capistrano 7.5' Q.) 21 Comment
  POM360778  Populus fremontii Marcus E. Jones 1930-3-3 26533 Orange Santa Ana Mountains. Comment
  RSA542356  Populus fremontii Fred M. Roberts Jr. 1987-5-12 3436 Orange Santa Ana River: Horseshoe Bend, 3.9km S San Juan Hill; 1.0km ENE Wier Canyon Road bridge. 104 Comment
  RSA735357  Populus fremontii Keith E. Hoffmaster 1934-4-8 156 Orange Santa Ana Mts. Comment
  CAS-BOT-BC438781  Populus trichocarpa R. E. Riefner, Jr. 2012-9-23 12 -512 Orange City of Yorba Linda, Santa Ana Canyon, N. side of Santa Ana River, La Palma Ave. at Via Del Rio Rd. 103 Comment
  RSA5326  Populus trichocarpa B. D. Stark 1932-12-30 4469 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA663166  Populus trichocarpa R. E. Riefner 2000-3-26 20 -151 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of major stream fork along W. channel drainage 335 Comment
  CAS-BOT-BC356151  Porophyllum gracile John Thomas Howell 1929-3-2 4097 Orange In hills on n. side of Santa Ana Canon [Canyon], 1/2 mile east of Horseshoe Bend 152 Comment
  JEPS34990  Porophyllum gracile John Thomas Howell 1927-7-28 2865 Orange Santa Ana Canyon, Rancho Santa Ana 152 Comment
  RSA934  Porophyllum gracile J. T. Howell 1927-7-28 509 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  UCSB48228  Portulaca oleracea Roberts, Fred 1981-7-7 Orange Rancho Mission Viejo: Calif. Rte. 74, 5.2km ENE San Juan Capistrano by road 100 Comment
  IRVC27531  Prosopis glandulosa var. torreyana Mark A. Elvin 2004-5-2 3419 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA50431  Prunella vulgaris var. lanceolata G. R. Campbell 1949-6-28 13991 Orange grown in Botanic Garden. Comment
  UCR140802  Pseudognaphalium biolettii Robin G. Marushia 2004-4-16 020 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
  UCR106257  Pseudognaphalium californicum B. G. Pitzer 1996-4-30 2800 A Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  CDA23142  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-3-21 07 -157 Orange City of San Juan Capistrano, vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek. Comment
  CHSC108408  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. 31 Comment
  SD240897  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2011-10-19 11 147 Orange City of San Juan Capistrano, San Juan Creek, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo Street. 31 Comment
  SD133181  Pseudognaphalium microcephalum A. C. Sanders 1990-10-6 10194 Orange Newport Bay, North Star County Beach area on the southwest end of the bay; 2 km inland of Highway 1. 0 Comment
  JEPS20429  Pseudognaphalium stramineum L. M. Booth 1932-7-19 1275 Orange Bolsa Chica Comment
  UCR215313  Pseudognaphalium stramineum Fred M. Roberts 2008-3-27 6804 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west Marine Institute, Dana Point Harbor 75 Comment
  IRVC20774  Pseudotsuga macrocarpa Fred M. Roberts 1980-5-3 63 Orange Main Divide Truck Trail, 0.4km W Trabuco Peak. Santa Ana Mountains 1341 Comment
  UCR203877  Pseudotsuga macrocarpa R. E. Riefner Jr. 2008-6-3 08- 134 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east fork of Fremont Canyon, Black Star SCE Road 646 Comment
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Jun 8 2011
  UCR158022  Psilocarphus brevissimus Adrian Wolf 1998-7-1 417 Orange South Coast, north Newport Oil Fields and East Banning Park; between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 6 Comment
  UC2046895  Psilotum nudum R. E. Riefner Jr. 2015-8-27 15 -357 Orange City of Laguna Beach, N side of North Coast Highway E side of La Brea St. Comment
  RSA797912  Psoralea macrostachya Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49822 Orange Santa Ana Mountains: Trabuco Canyon Comment
  IRVC26429  Ptelea aptera Mark A. Elvin 2004-2-22 3151 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR174219  Pteridium aquilinum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33034 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  POM8763  Pterostegia drymarioides P. A. Munz, R. D. Harwood 1920-4-24 3746 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA542465  Pterostegia drymarioides Fred M. Roberts 1988-4-10 3906 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  RSA737547  Pterostegia drymarioides Fred M. Roberts 2008-3-12 6714 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  SEINET7073416  Pterostegia drymarioides A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  CAS-BOT-BC362140  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange N. facing slope of the Santa Ana Canyon, 0.1 mi. s. of Riverside Freeway to Anaheim, ca. 2 mi. w. of the Riverside Co. line in Orange Co. Comment
  CAS-BOT-BC362142  Pulicaria paludosa R. L. Pope 1963-9-23 s.n. Orange Santa Ana Canyon about 1.5 miles above Yorba Linda Bridge Comment
  CAS-BOT-BC362143  Pulicaria paludosa R. L. Pope 1959-8-14 s.n. Orange Ray Miller Property, east of Fullerton, Santa Ana River Canyon Comment
  JEPS35293  Pulicaria paludosa R. L. Pope 1963-9-23 Orange approx 0.75 mi above Yorba Linda Bridge; Sanat Ana Canyon Comment
  OBI5232  Pulicaria paludosa T. C. Fuller 1993-10-9 11362 Orange Santa Ana cyn, 0.1 mi S of riverside fwy to Anaheim, ca 2 mi W of the Riverside Co. line Comment
  RSA627756  Pulicaria paludosa Scott D. White 1998-5-31 6568 Orange University of California Irvine Campus, Southwest of Farm School site (now proposed as Student Rec. Ctr.). 37 Comment
  RSA800669  Pulicaria paludosa Justin M. Wood 2010-9-29 2752 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
  UC2029950  Pulicaria paludosa Steve Boyd, R. E. Riefner 2000-9-13 10307 Orange SANTA ANA MOUNTAINS: Fremont Canyon, about 1.5 air miles west of Oat [a.k.a. Oak] Flat and 1.5 air miles southeast of Claymont clay mine. Comment
  UCR95480  Pulicaria paludosa P. H. Raven 1961-10-15 16847 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing 61 Comment
  UCR95587  Pulicaria paludosa P. H. Raven 1961-10-15 16857 Orange Dike along road to Yorba Linda, just north of US Hwy 91 114 Comment
  UCSB52414  Quercus X acutidens Roberts, Fred 1982-7-9 Orange Santa Ana Mtns,: San Juan Canyon, Hwy 74, entrance to Lower San Juan Picnic ground; 1.9km NW Sitton Peak 305 Comment
  RSA38451  Quercus agrifolia Carl B. Wolf 1944-11-29 11496 Orange West base of Santa Ana Mountains, Orange County Park 183 Comment
  RSA5283  Quercus agrifolia Carl B. Wolf, B. D. Stark 1932-12-19 4432 Orange Skyline Drive, Black Star Canyon, 2 miles below summit 610 Comment
  SEINET12031056  Quercus agrifolia S. A. Thompson, Rawlins, J. E. 1988-1 5258 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  RSA725472  Quercus agrifolia var. agrifolia Fred M. Roberts, Megan Lulow 2007-7-30 6546 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  OBI5834  Quercus agrifolia var. oxyadenia Carl B. Wolf 1931-3-6 1832 Orange 1.5 mi below Trabuco Oaks along Trabuco Cyn rd, West slope Santa Ana Mts 305 Comment
  IRVC16135  Quercus berberidifolia R. Meinzer, T. Mulroy 1971-4-25 s.n. Orange Santa Ana Mountains: Upper Trabuco Canyon. Peninsular Ranges Comment
  IRVC24552  Quercus berberidifolia Fred M. Roberts 1983-10-9 1142 Orange Laguna Beach: Temple Hill S of Upper Rancho Laguna canyon along Del Mar Street. Southern Coastal 190 Comment
  RSA0013859  Quercus berberidifolia Fred M. Roberts 2012-5-10 7561 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
  JEPS83585  Quercus dumosa Teresa Sholars, Judith Greenlee, and Fred Roberts 1988-3-29 817 Orange Dana Point Headlands, ca 50 m e of ocean bluff Dana Point Headlands Comment
  RSA659555  Quercus dumosa P. Shirokawa 1998-5-7 22 Orange Cleveland National Forest- Trabuco Ranger District, 3.2 miles from Ortega Highway (State Highway 74) on North Main Divide Road 1021 Comment
  UCSB52406  Quercus dumosa Roberts, Fred 1982-7-8 Orange Laguna Niguel; Niguel Hill, Pacific Island, 1.7 km. SE Aliso Peak 177 Comment
  UCR177695  Quercus engelmannii Fred M. Roberts 2003-5-1 5685 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km west of Cristianitos Rd. 96 Comment
  UCD46910  Quercus lobata James Trumbley 1980-1 1 Orange Crystal Cove State Park, ca. 1 mile inland, in Moro Canyon, a coastal canyon between Laguna Beach and Corona del Mar, Orange County, California. 30 Comment
  UC1135890  Quercus wislizeni A. Lewis Mar 1934 363 Orange Head of Silverado Canyon Cleveland National Forest, Corona Quad. 1112 Comment
  POM6265  Ranunculus hebecarpus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2630 Orange Santa Ana River Canyon. Comment
  RSA585061  Raphanus raphanistrum D. Atwood 1993-3-29 17737 Orange Huntington Beach along Beach Blvd, 1/2 miles N of the Beach, Comment
  CDA3882  Reseda alba Johnson 1939-4-1 Orange Los Angeles - Garden Grove. 0 Comment
  UCR162344  Rhamnus alaternus Robert DeRuff 1988-1 405 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, Big Canyon 30 Comment
  POM261672  Rhamnus californica subsp. californica W. Pequegnat 1941-09 s.n. Orange Silverado Canyon. Comment
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Sep 7 2010
  RSA716719  Rhamnus crocea Fred M. Roberts 2004-6-16 6055 Orange San Joaquin Hills: Temple Hill, slopes above Hobo Cyn., adj. to 591 Balboa Ave.; 1.0km NNE Golf Island Survey Mark. 175 Comment
  CAS-BOT-BC56030  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1841 Orange W. slope Santa Ana Mts., Trabuco Canyon, 1/2 mi. above Trabuco Oaks 457 Comment
  CAS-BOT-BC56032  Rhamnus ilicifolia P. C. Everett 1935-6-17 7138 Orange Santa Ana Mts., Coldwater Canyon, 1.2 mi. above Glen Ivy Resort 457 Comment
  CAS-BOT-BC56035  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1841 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope Santa Ana Mts. 457 Comment
  UC1121846  Rhamnus ilicifolia R. St. John 1931-2-25 188 Orange Potreros Los Pinos Elsinore Quad. 762 Comment
  UCR229210  Rhamnus ilicifolia Dick Newell, Peter Wetzel 2011-6-28 198 Orange South Coast, San Joaquin Hills, Willow Canyon, Laguna Coastal Wilderness Park 89 Comment
  UCR241912  Rhamnus ilicifolia Fred M. Roberts 2012-5-10 7562 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  POM9767  Rhamnus ilicifolia P. A. Munz 1921-2-26 4681 Orange Brea Canyon. 305 Comment
  SD247722  Rhamnus ilicifolia R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 497703 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UC592835  Rhamnus tomentella subsp. cuspidata Carl B. Wolf 1933-8-24 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  UC1094403  Rhaponticum repens John W. Ingram 1953-12-1 Orange 2 mi n, on State Highway 39 Huntington Beach Comment
  UC484250  Rhus C. B. Wolf 1931-3-6 Orange 1 1/2 mi below Trabuco Camp grounds (Trabuco Canyon, w slope Santa Ana Mountains); Santa Ana Mountains 548 Comment
  POM293120  Rhus integrifolia Lyman Benson 1946-5-13 12093 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
  RSA454  Rhus integrifolia J. T. Howell 1927-7-29 516 Orange Near east boundary of Rancho Santa Ana. 213 Comment
  POM9769  Rhus integrifolia P. A. Munz 1921-2-26 4684 Orange Brea Canyon.. 304 Comment
  RSA0054853  Rhus laurina Grace Adams 1938-5-28 s.n. Orange Santiago Creek. Comment
  CAS-BOT-BC167931  Rhus ovata C. B. Wolf 1931-3-6 1857 Orange 1 1/2 miles below Trabuco Camp Ground, Trabuco Canyon, west slope Santa Ana Mts. 548 Comment
  LA205460  Ribes californicum var. hesperium W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mountains, junction of Holy Jim and Trabuco Canyons 670 Comment
  RSA788180  Ribes californicum var. hesperium Doris Bowers 1971-4-19 1682 Orange Black Star Canyon Indian Site 762 Comment
  UC1127382  Ribes californicum var. hesperium A. Lewis May 1934 422 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  SD247656  Ribes californicum var. hesperium R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49707 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  POM12991  Ribes indecorum P. A. Munz, I. M. Johnston 1922-5-18 5310 Orange Santa Ana River Canyon. 457 Comment
  RSA101788  Ribes indecorum R. Weatherby 1950-2-25 1026 Orange Harding Canyon, Santa Ana Mts. 823 Comment
  UC718384  Ribes roezlii P. C. Everett 1935-6-18 7215 Orange summit Santiago Pk.; Santa Ana Mts. 1731 Comment
  RSA0018261  Ribes roezlii Percy C. Everett 1935-6-18 7215 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  CAS-BOT-BC173736  Ribes speciosum Marcus E. Jones 1931-3-23 28326 Orange Laguna Comment
  RSA13078  Ribes speciosum Carl B. Wolf 1935-8-1 7562 Orange Claymine Canyon, Santa Ana Mts. Comment
  RSA30506  Ribes speciosum B. D. Stark 1930-1-28 11209 Orange Claymine Canyon, Santa Ana Mts. 213 Comment
  RSA351  Ribes speciosum J. T. Howell 1928-3-18 888 Orange Aliso Canon [Canyon], Rancho Santa Ana. 229 Comment
  RSA702761  Ribes speciosum Scott D. White, Michael Honer 2004-5-17 10384 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
  RSA733956  Ribes speciosum Lucille Crawford 1932-5-1 s.n. Orange Silverado Canyon Comment
  UCD102509  Ribes speciosum P. B. Kennedy 1925-1-12 s.n. Orange Irvine Range. Comment
  POM2748  Ricinus communis M. Harbour 1915-3-28 s.n Orange Orange. Comment
  RSA797435  Ricinus communis Keith E. Hoffmaster 1935-2-17 s.n. Orange Near Costa Mesa Comment
  UCD170896  Ricinus communis T. B. Salvato; Katie Kurtz 2006-10-15 1918 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue. 6 Comment
  POM201689  Romneya coulteri L. M. Booth 815 Orange Santa Ana Canyon Comment
  RSA131396  Romneya coulteri E. K. Balls, R. M. Beeks, Howard Brown 1958-6-27 23277 Orange 1 miles E of Silverado Stn. Silverado canyon, Santa Ana Moutains. 518 Comment
  RSA171108  Romneya coulteri Robert F. Thorne 1963-7-26 32841 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mountains, Cleveland National Forest. 762 Comment
  RSA797663  Romneya coulteri Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49767 Orange Santa Ana Mountains: Trabuco Canyon Comment
  SBBG95105  Romneya coulteri S. D. White 1990-7-17 Orange Coal Cyn, ca. 1 mi S of the mouth of the Cyn near the Cyn bottom 274 Comment
  CAS-BOT-BC92181  Romneya coulteri var. coulteri Le Roy Abrams 1901-6-1 1852 Orange Trabuco Canon [Canyon]. Comment
  JEPS53864  Rorippa palustris Alice King May 1908 Orange grounds of Shooting Club near Garden Grove; near Garden Grove Comment
  UCR266346  Rorippa palustris D. E. Bramlet 2002-4-14 3265 Orange Laguna Lakes 113 Comment
  UCR98236  Rosa californica B. G. Pitzer 1997-4-15 3132 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
  RSA699216  Rubus ursinus R. H. McArthur 1934-2-27 s.n. Orange Santa Ana River at 1st Street Comment
  RSA797907  Rubus ursinus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49817 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UCR193809  Rubus ursinus A. C. Sanders, Fred M. Roberts 2008-7-16 35833 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, canyon c. 0.12 mi. below Dripping Spring, c. 7.5 mi. ESE of Tustin 360 Comment
  VVC457  Rubus ursinus F. Ambrey 1959-5-4 s.n. Orange Santa Ana Mtns., 0.8 mi W of pavement end in Silverado Cyn. 649 Comment
  SD255272  Rubus ursinus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49789 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CLARK-A1528-923  Rumex crispus Patricia A. Andrews 1975-6-26 5912 Orange Capistrano Bay Beach 9 Comment
  CAS-BOT-BC433580  Rumex hymenosepalus John Thomas Howell 1928-2-26 3352 Orange Near highway between Atwood and Placentia Comment
  CAS-BOT-BC433582  Rumex hymenosepalus Helen D. Geis 1902-5-1 s.n. Orange Majeska's Comment
  UCR158464  Rumex maritimus Adrian Wolf 1998-5-27 334 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  SBBG128391  Rumex obtusifolius A. C. Sanders, F. M. Roberts 2008-7-7 36004 Orange Weir Cyn at powerline crossing, 1.0 mi (air) SSE of Walnut Cyn Reservoir; Santa Ana Mtns 226 Comment
  UCSB48108  Rumex salicifolius Roberts, Fred 1981-4-12 Orange SANTA ANA MTNS.: San Juan Canyon, Hwy 74, 1.3km by road E San Juan Guard Station; 0.9km SE Juan Rancho Survey Mark 295 Comment
  RSA542460  Rumex salicifolius Fred M. Roberts 1988-4-14 3925 Orange IRVINE: south of the San Diego Freeway, 1.2 km. ENE French Hill. 41 Comment
  RSA478908  Salicornia bigelovii F. R. Fosberg 1931-8-19 7286 Orange Newport Bay. 0 Comment
  SD72734  Salicornia bigelovii F. R. Fosberg 1931-8-19 7286 Orange Salt marsh, Newport Bay. Comment
  UCR234135  Salicornia bigelovii Dick Newell 2011-10-2 220 Orange South Coastal Plain, Newport Back Bay, near Big Canyon parking area off Back Bay Dr. 0 Comment
  SEINET11941003  Salicornia bigelovii P. H. Raven 1958-1 13561 Orange Salt marsh just N of Surfside Comment
  UC213449  Salicornia virginica I. M. Johnston 1918-9-3 2152 Orange Laguna Beach 6 Comment
  UCR240096  Salicornia virginica Dick Newell 2012-9-29 300 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 2 Comment
  IRVC24541  Salicornia virginica J. Johnson 1976-8-10 Orange Newport [Back] Bay. Newport Beach Comment
  POM48007  Salicornia virginica I. M. Johnston 1924-8-29 s.n. Orange 4 mi S of Santa Ana. Comment
  CAS-BOT-BC129735  Salix bonplandiana Helen D. Geis 1902-1-1 552 Orange Santa Ana Comment
  RSA4248  Salix exigua Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River and south of pear orchard, Santa Ana Canyon. 122 Comment
  RSA698844  Salix exigua Mabel Harvey s.n. Orange Silverado Canyon Comment
  LA208639  Salix exigua var. hindsiana Carl B. Wolf; 1932-4-15 2954 Orange Santa Ana Canyon, Rancho Santa Ana, near Santa Ana River, S of pear orchard, in Botanic Garden 120.0 Comment
  SBBG58937  Salix exigua var. hindsiana C. B. Wolf 1932-7-7 2848 Orange Rancho Santa Ana, Bixby Ave, 1 km W of Hansen Rd, near Los Alamitos 8 Comment
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Apr 11 2014
  RSA0093589  Salix gooddingii Fred M. Roberts 2014-4-21 7855 Orange South Coast. SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin. 113 Comment
  RSA366296  Salix gooddingii Fred M. Roberts Jr. 1985-6-12 1906 Orange Irvine: W.R. Mason Regional Park, Culver, 0.2km S University Dr.; 1.7km NE UC Irvine. 17 Comment
  UC846812  Salix gooddingii L. R. Abrams 1913-7-14 5005 Orange Santa Ana R. Bridge near Orange (Type Station) Comment
  UCR237820  Salix gooddingii Mark A. Elvin 2003-2-2 2288 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  SEINET13212664 Image available Salix gooddingii Unknown 1903-1 3256 /1227 Orange Santa Ana River near Orange, S. California. Comment
  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
  PASA2678  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Rd., near town of Los Alamitos. 7.5 Comment
  RSA5369  Salix laevigata B. D. Stark 1933-1-7 4511 Orange Rancho Santa Ana, river bottom below ranch houses. 122 Comment
  RSA679094  Salix laevigata Fred M. Roberts 2003-7-24 5965 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
  RSA734891  Salix laevigata A. C. Sanders, Mitch Provance 2008-5-20 35425 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile blow Modjeska Canyon confluence. 345 Comment
  SD227895  Salix laevigata Scott D. White, Brian Leatherman 1997-6-12 5323 Orange Santa Ana Mtn. foothills. East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. ca. 2 to 4 mi E of I-15 / Hwy 74 jtn. 45 Comment
  UC506445  Salix laevigata Carl Hedin and Joseph Ewan 1933-3-19 7686 Orange Comment
  RSA650637  Salix laevigata var. laevigata Daniel Truong 1991-5-13 25 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  RSA750119  Salix lasiolepis A. C. Sanders, Fred M. Roberts 2008-8-7 35985 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UCR195008  Salix lasiolepis A. C. Sanders, Fred M. Roberts 2008-8-7 35985 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-BC128464  Salix lasiolepis var. lasiolepis Ira L. Wiggins 1966-3-22 20549 Orange Along stream bank, bottom of Silverado Canyon, about 5 mi above Ranger Station, Cleveland National Forest Comment
  UCR203883  Salix lucida subsp. lasiandra R. E. Riefner Jr. 2008-5-20 08- 108 Orange Irvine Ranch Reserve, north Irvine Ranch, south Donaldson Ranch c. 0.75 mi along west fork of upper Fremont Canyon 405 Comment
  SEINET4466838 Image available Salix nigra var. vallicola L. R. Abrams 1903-1 3256 Orange Comment
  CAS-BOT-BC126306  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
  UCR207195  Salsola O. F. Clarke 2003-12-10 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  CDA3168  Salsola australis R. E. Riefner Jr. 2007-1-2 16 -Jul Orange City of Lake Forest, along Bake Parkway at Dimension Road. Comment
  UCR240079  Salsola australis Dick Newell, Don Millar 2012-10-9 305 Orange South Coast, Newport Beach, Buck Gully 1/2 mile south of San Joaquin Hills Road 150 Comment
  CAS-BOT-BC176976  Salsola tragus John Thomas Howell 1927-7-27 2857 Orange Hills on n. side of Santa Ana [Canon] 152 Comment
  UC213455  Salsola tragus D. L. Crawford Sept. 1915 Orange Huntington Beach Comment
  UCLA55658  Salvia C. Epling and H. Lewis 1940-4-21 Orange 6 mi e San Juan Capistrano Comment
  RSA0013963  Salvia columbariae Fred M. Roberts, D. E. Bramlet 2008-5-13 6955 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  RSA751255  Salvia columbariae A. C. Sanders, Fred M. Roberts 2008-7-16 35876 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon. 358 Comment
  RSA550594  Salvia leucophylla Fred M. Roberts 1989-4-26 4320 Orange Santa Ana Mtns.: Lower Blind Canyon near mouth, 9.2km SW Sierra Peak, 1.0km N Irvine Lake spillway. 213 Comment
  UCR131875  Salvia leucophylla J. Mallory, V. McCoy 1995-7-3 6465- 102 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. east of confluence with Santiago Canyon, on a W-facing slope. north of Irvine Lake 300 Comment
  CAS-BOT-BC229976  Salvia mellifera John Thomas Howell 1927-6-8 2459 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 213 Comment
  HSC14367  Salvia mellifera T. L. Ackerman 1964-3-28 10 Orange Irvine Park Dr. inside Irvine Park Comment
  SBBG45102  Salvia mellifera E. R. Johnson 1935-1-14 Orange open firebreak on slopes of Sierra Pk, along rd to Claymine Cyn 609 Comment
  UCR102017  Salvia mellifera B. G. Pitzer 1997-3-25 3020 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCSB12637  Salvia mellifera Whittington, M. 1962-4-20 Orange Modjeska grade road; between Modjeska and Trabuco Canyon Comment
  POM4055  Salvia spathacea I. M. Johnston 1918-5-4 951 Orange Hills back of Laguna Beach. 30 Comment
  POM4123  Salvia spathacea Lois Clency 1914-07 s.n. Orange Laguna. Comment
  IRVC26757  Sambucus mexicana Peter A. Bowler 2003-4-26 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; along marsh road. Southern Coastal 6 Comment
  RSA13083  Sambucus mexicana Vernon Fagan 1935-9-4 7566 Orange Rancho Santa Ana, Santa Ana Canyon North of Mexican Houses. 122 Comment
  UC527395  Sambucus mexicana C. B. Wolf 1931-7-25 2293 Orange above irrigation canal (just n of Mexican houses); Rancho Santa Ana, Santa Ana Canyon 121 Comment
  UCR106271  Sambucus mexicana B. G. Pitzer, M. Georgiady 1997-4-5 3094 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  UCR209664  Sambucus nigra Fred M. Roberts 2008-5-8 6944 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Strands Road Gate, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 65 Comment
  CAS-BOT-BC238829  Sambucus nigra subsp. caerulea C. B. Wolf 1931-7-25 2293 Orange Above the irrigation canal, just north of Mexican houses, Rancho Santa Ana, Santa Ana Canyon 121 Comment
  SFV16186  Sambucus nigra subsp. caerulea R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 41 Orange Newport Beach, west side of Upper Newport Bay adjacent to Santa Ana Delhi channel. About 100 m west of footbridge. Comment
  POM186292  Samolus parviflorus Joseph A. Ewan 1932-7-29 7716 Orange Bolsa Chica near Huntington Beach. Comment
  RSA0127339  Sanicula arguta Fred M. Roberts 2016-3-17 8021 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  RSA0127423  Sanicula arguta Fred M. Roberts 2016-3-17 8018 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  RSA747598  Sanicula arguta Fred M. Roberts 2000-5-19 5331 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  UCR220955  Sanicula arguta Dick Newell, Don Millar 2010-3-16 012 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, above Agua Chinon at Box Canyon Rd, 2.81 miles north of Hwy 241 toll road and 2.77 miles east of 133 toll road 427 Comment
  RSA263760  Sanicula crassicaulis E. W. Lathrop 1970-1-28 7128 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat l Forest. 396 Comment
  UC1006699  Sanicula crassicaulis C. Ritchie Bell 1953-2-22 1387 Orange near sw edge of San Clemente State Park, above old dam San Clemente State Park Comment
  RSA606429  Sanicula crassicaulis Jon E. Keeley 1994-4-5 25279 Orange First year burn, east end of Caspers Park S-7 (Keeley 1994) 215 m. 215 Comment
  RSA798601  Sanicula graveolens R. F. Thorne, E. W. Lathrop 1977-5-18 49738 Orange Santa Ana Mountains: summit of Santiago Peak 1733 Comment
  SD232219  Sarcocornia pacifica Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1101 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Statiion, across access road from Nature Center (Bldg 226). 3 Comment
  SD37460  Sarcocornia pacifica Edith A. Purer 1932-8-31 4876 Orange Moist location on sand dunes. Comment
  UCSB48076  Schismus barbatus 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
  CAS-BOT-BC111473  Schoenoplectus americanus John Thomas Howell 1927-7-19 2805 Orange In shallow water, Santa Ana River bottom, Santa Ana Canon 152 Comment
  UCR186688  Schoenoplectus americanus T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1909 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  RSA0027438  Schoenoplectus californicus Fred M. Roberts 2012-7-18 7672 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
  RSA232214  Schoenoplectus californicus James Henrickson 1970-7-24 4985 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  POM1400  Schoenoplectus maritimus Phillip A. Munz 1918-5-4 2226 Orange Laguna Canyon. Comment
  RSA542337  Schoenoplectus maritimus Fred M. Roberts, K. Keane 1988-5-25 4579 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.4 kilometers SSE Medium Rancho Survey Mark. 69 Comment
  UCR102628  Scrophularia californica B. G. Pitzer 1997-4-15 3148 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  RSA701800  Scrophularia californica subsp. floribunda Fred M. Roberts, David E. Bramlet 2003-6-6 5889 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.7km SW int. Cristianitos and TRW Rds. and 0.23km W of SDGandE substation. 94 Comment
  JEPS62864  Scutellaria tuberosa Mary Alice King 1908-4-19 Orange Santa Ana Mountains Comment
  RSA124718  Selaginella bigelovii E. K. Balls, Percy C. Everett 1957-11-25 22841 Orange Upper Trabuco Canyon, 2.2 mi. ne. from entrance to Holy Jim Canyon. 990 Comment
  UCR100184  Selaginella bigelovii Scott D. White 1996-12-20 4632 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  CAS-BOT-BC363249  Senecio Mark A. Elvin 2003-8-24 3011 Orange Southern coastal: San Jaquin [Joaquin] Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road 72 Comment
  RSA539420  Senecio aphanactis Fred M. Roberts 1989-3-7 4200 Orange Lomas de Santiago: Loma Ridge, tributary to Hicks Canyon, 2.1km W Bee Survey Mark, UTM 37 32 300mN, 4 33 150mE, alt. 183 meters. 183 Comment
  CAS-BOT-BC363477  Senecio californicus Helen D. Geis 1902-1-1 537 Orange Santa Ana Comment
  IRVC894  Senecio californicus C. Weir 1965-4-17 Orange Newport Beach; Balboa Island. Southern Coastal Comment
  JEPS88922  Senecio californicus Rimo Bacigalupi and P. C. Hutchison 1962-3-16 8236 Orange 2 mi n Doheny Beach State Park (just off Highway 101) Comment
  IRVC901  Senecio flaccidus var. douglasii E. Cowper 1965-4-9 Orange [Newport] Back Bay. Newport Beach Comment
  RSA1370  Senecio flaccidus var. douglasii B. D. Stark 1929-11-2 1441 Orange Santa Ana River bottom, Rancho Santa Ana 122 Comment
  UCR247540  Senecio flaccidus var. douglasii Dick Newell, Judy Booth 2013-9-22 339 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, North Main Divide Road, 2.2 air miles due east of Los Pinos Peak 938 Comment
  UCSB48048  Senecio flaccidus var. douglasii Roberts, Fred 1981-11-15 Orange Santa Ana Mtns.: San Juan Canyon, Hwy 74, across road from entrance to Lower San Juan Picnic Ground 436 Comment
  RSA685173  Senecio linearifolius Scott D. White 2003-7-7 9613 Orange Irvine, UC Irvine Campus, directly west of T-intersection of Shady Canyon Cr. w/ Bonita Canyon Dr. (= Culver Dr.); Tustin. 70 Comment
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Oct 23 2007
  RSA702682  Senecio linearifolius Scott D. White, Michael Honer 2004-5-17 10401 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
  UCR147856  Senecio linearifolius Scott D. White 1998-6-26 6783 Orange Irvine, University of California, Irvine campus: low-lying seasonal wetland along mapped intermittent 'blueline' stream just north of Bonita Canyon Drive 70 Comment
  UCR198400  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Coastal Plain, Irvine, UC Irvine Campus. Directly west of T-intersection of Shady Canyon Creek with Bonita Canyon Dr. (= Culver Drive) 70 Comment
  RSA0127340  Senecio vulgaris Fred M. Roberts 2016-3-17 8022 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  RSA697120  Senecio vulgaris Kenneth Beard 1934-02 s.n. Orange Along riverbank of Santa Ana River. Comment
  RSA734612  Senecio vulgaris Keith E. Hoffmaster 328 Orange Santa Ana Comment
  CAS-BOT-BC364599  Senecio vulgaris Carl B. Wolf 1932-6-28 3766 Orange Bryant Ranch, along Western half of North boundary of 40 acre Valencia Orange Grove; Bryant Ave. & Hansen Rd. Comment
  CAS-BOT-BC364604  Senecio vulgaris Ira L. Wiggins 1966-2-18 20447 Orange Roadside near end of county road, 1/2 mi. W. of entrance to Rancho Santa Ana Comment
  CAS-BOT-BC438201  Sesuvium verrucosum D. L. Crawford 1916-8-1 s.n. Orange Laguna Beach Region. Laguna Canon [Canyon] Comment
  UCSB48233  Setaria F. M. Roberts, Jr. 1981-5-2 242 Orange collected 1.5 km N, along Camino Capistrano, in Mision Viejo Crown Valley Parkway - Mision Viejo, Camino Capistrano and Crown Valley Parkway 49 Comment
  RSA724100  Setaria adhaerens R. E. Riefner 2004-8-8 4 373 a Orange City of Anaheim, Santa River bottom near 57-Freeway between Orangewood St. and Chapman Ave. 41 Comment
  RSA728655  Setaria adhaerens R. E. Riefner 2006-7-23 6 -310 Orange City of Santa Ana, 17th st. at 55 Hwy. 49 Comment
  RSA731924  Setaria adhaerens Fred M. Roberts, Sandy Leatherman 2007-11-27 6686 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  CAS-BOT-BC243590  Setaria parviflora Ira L. Wiggins 1965-9-26 20260 Orange Roadside at west end of Orangethorpe Estates subdivision near Atwood. Comment
  CAS-BOT-BC243593  Setaria parviflora Miss. H. D. Geis 1902-5-1 s.n. Orange Santa Ana Comment
  UCR236679  Setaria parviflora Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7101 Orange Peninsular Ranges, Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana River, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river 87 Comment
  RSA732152  Sidalcea malviflora A. C. Sanders, Fred M. Roberts 2008-4-22 35018 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 1200 Comment
  UCSB47611  Sidalcea malviflora Roberts, Fred 1980-5-3 Orange 0.1km NE Falcon Group Camp, Santa Ana Mtns. 1012 Comment
  CAS-BOT-BC205738  Sidalcea neomexicana subsp. thurberi P. C. Everett 1935-4-27 6691 Orange Bryant Ranch. NW. Cor. Bryant Ave. & Hansen Rd. 30 Comment
  RSA15944  Sidalcea neomexicana subsp. thurberi Percy C. Everett 1935-4-27 6691 Orange Bryant Ranch, NW corner of Bryant and Hansen Rd. [Los Angeles County]. 30 Comment
  RSA17560  Sidalcea neomexicana subsp. thurberi Carl B. Wolf 1936-4-22 7770 Orange East of Los Alamitos, at NW corner of Hansen Rd. and Bryant Ave. 15 Comment
  SEINET6947338  Sidalcea sparsifolia W. P. Vestal, A. G. Vestal 1955-3-24 3453 Orange Trabuco Canyon, 5 miles east of El Toro. Comment
  SEINET3155822  Silene W. B. Crockatt 1908-6-1 sn Orange Capistrano valley 76 Comment
  RSA606442  Silene antirrhina Jon E. Keeley 1994-4-5 25281 Orange First year burn, east end of Caspers Park S-7 (Keeley 1994) 215 m. 215 Comment
  IRVC20780  Silene gallica Fred M. Roberts, S. L. Fritzke 1982-4-2 458 Orange hills, 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station, N of Del Avion, Laguna Niguel 100 Comment
  RSA477883  Silene gallica M. B. Dunkle 1933-4-9 3272 Orange Dana Point. Comment
  RSA749466  Silene gallica Fred M. Roberts 1999-4-22 5186 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.9 km SE Silverado Sch. and 2.2 km NNW Bolero Lookout. 395 Comment
  RSA797354A  Silene gallica D. M. McF 1956-4-11 7 Orange Moulton Ranch, South Coast. 152 Comment
  CAS-BOT-BC386897  Silene gallica Ira L. Wiggins 1966-4-30 20573 Orange field along south side of Brea Olinda Boulevard, near Carolina Avenue. Comment
  RSA650328  Silene gallica Diane T. Liggett 1981-5-16 7 Orange Riverside Freeway (91) east to Imperial Hwy, south to Nohl Ranch Road, east to Serrano Ave., south on Hidden Cyn. Road, 1 km into Weir Cyn. Comment
  UCR209365  Silene laciniata subsp. major Fred M. Roberts, Linda Farley 2008-3-28 6831 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  RSA708224  Silene lemmonii Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6217 Orange Main Divide Road, ridge between Silverado and Bixby Canyons, coastal slope, 0.46km (air) S Bald Peak. 1203 Comment
  IRVC7928  Silene multinervia A. S. Boughey 1968-4-23 208 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  IRVC908  Silybum marianum L. Stilgenbauer 1965-4-27 Orange Corona del Mar], Big Corona Beach. Newport Beach Comment
  UCSB48099  Sisymbrium irio Roberts, Jr., Fred 1981-4-11 Orange Ortega Hwy.; Hwy. 74, 5.2 km. E San Juan Capistrano near San Juan Creek crossing 52 Comment
  UCR191002  Sisymbrium officinale A. C. Sanders, Fred M. Roberts 2008-4-22 35047 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado 488 Comment
  IRVC1190  Sisymbrium orientale D. Frees 1965-3-27 Orange Newport Beach; East Bluffs. Southern Coastal Comment
  IRVC17042  Sisymbrium orientale R. Nesheim 1965-4-30 Orange Bayside Dr. Newport Beach 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
  RSA697825  Sisyrinchium bellum Anonymous s.n. Orange Near Orange Co. Park. 793 Comment
  RSA703845  Sisyrinchium bellum D. E. Bramlet 2003-3-20 3348 Orange Donna ONeill Reserve. NE corner of the reserve, 152m west of Cristianitos Rd. and 1.9km north of the E-W access road. 134 Comment
  RSA651593  Sisyrinchium bellum D. Geisinger, R. Miller, E. Baldwin 1959-3-19 s.n. Orange Santa Ana Canyon Comment
  IRVC24222  Sitanion jubatum Fred M. Roberts, Karlin G. Marsh, Gordon Marsh 1985-10-1 2279 Orange Silverado Canyon, Silverado Canyon Road, 1.0km by road E junction Santiago Canyon Road. Santa Ana Mountains 320 Comment
  HSC21299  Solanum douglasii J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  POM183938  Solanum douglasii Philip A. Munz 1932-3-29 12190 Orange Costa Mesa Comment
  RSA549241  Solanum douglasii Scott D. White 1992-9-29 845 -a Orange Vicinity of City of Brea, immediately N of Carbon Canyon Road and E of Placentia Avenue, +/- 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  RSA747697  Solanum douglasii Fred M. Roberts 2008-4-16 6915 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 71 Comment
  UC12096  Solanum douglasii Lawrence M. Booth 1932-5-19 1075 Orange Newport Bay Comment
  UC933970  Solanum douglasii Elton F. Paddock 1951-7-22 411 Orange near San Diego County line (San Clemente State Beach, near picnic tables, near railroad tracks); San Clemente State Beach Comment
  UCR137188  Solanum douglasii M. B. Dunkle 1933-3-5 3093 Orange Southern Coast, San Juan Canyon 305 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
  UCR221897  Solanum douglasii Dick Newell, Don Millar 2010-10-5 41 Orange South Coast, city of Irvine, on Portola Pkwy. 1/4 mile east of Orchard Hills Rd. at Irvine Ranch Conservancy headquarters 95 Comment
  UCR97817  Solanum douglasii Scott D. White 1997-3-28 4828 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA704889  Solanum douglasii Doug Causey 1972-5-1 s.n. Orange 3 mi. E Irvine Lake Comment
  NY821424  Solanum nigrum C. L. Hitchcock 1964-3-17 23063 Orange 8 mi. E. of Yorba Linda, Santa Ana Canyon Comment
  CAS-BOT-BC156711  Solanum umbelliferum C. B. Wolf 1931-3-6 1850 Orange 1/2 [milea] miles below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  HSC25250  Solanum umbelliferum R. W. Spjut 1972-2-21 2215 Orange Santa Ana Mts., Cleveland Nat'l Forest, along Hwy. 74 305 Comment
  RSA2067  Solanum umbelliferum Carl B. Wolf 1931-3-6 1862 Orange North of base of Trabuco Modjeska Grade, west slope of Santa Ana Mts. 305 Comment
  RSA598959  Solanum umbelliferum Scott D. White 1997-3-28 4831 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  IRVC26673  Solanum xanti Mark A. Elvin 2004-4-4 3233 Orange UCI Arboretum Southern Coastal 15 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
  RSA791806  Soleirolia soleirolii R. E. Riefner Jr. 2011-7-1 11 -84 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1.5 miles from Poppy Ave. 2 Comment
  IRVC21389  Solidago californica A. S. Boughey 1968-7-9 409 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  CAS-BOT-BC364911  Solidago velutina subsp. californica Le Roy Abrams 1901-6-16 1851 Orange Trabuco Canon [Canyon] Comment
  CAS-BOT-BC365978  Sonchus arvensis E. Johnson 1932-7-1 s.n. Orange Unspecified Comment
  SD245291  Sonchus asper Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49582 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  CAS-BOT-BC374661  Sonchus oleraceus Ira L. Wiggins 1965-10-25 20297 Orange Curbway on Dorothy Lane near Lincoln Avenue, Fullerton Comment
  RSA730994  Sonchus oleraceus Fred M. Roberts 2006-11-15 6468 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  UC537123  Sonchus oleraceus Lawrence M. Booth 1932-7-21 1297 Orange Anaheim Marsh Comment
  POM202168  Sonchus oleraceus L. M. Booth 1932-7-21 1297 Orange Near Sunset Beach, Anaheim Marsh. Comment
  RSA697068  Sonchus oleraceus Kenneth Beard 1934-02 s.n. Orange Walnut grove on Freeman Street, Santa Ana. Comment
  CAS-BOT-BC235340  Sorghum halepense John Thomas Howell 1927-7-27 2859 Orange Hills on n. side of Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC235343  Sorghum halepense Le Roy Abrams 1901-6-12 1765 Orange Santa Ana Comment
  JEPS73760  Sorghum halepense L. M. Booth 1932-7-18 1265 Orange Newport Bay, Costa Mesa Comment
  UCSB48224  Sorghum halepense Roberts, Fred 1981-6-24 Orange San Juan Capistrano; 3.2 km. S. Saddleback Community College on Rancho Viejo Road 42 Comment
  RSA699060  Sparganium eurycarpum J. Russell Bruff 1932-4-14 s.n. Orange Drainage Ditch, Greenville. So of Santa Ana. Comment
  RSA733937  Sparganium eurycarpum R. H. McArthur 1934-5-17 s.n. Orange 0.5 mi east Greenville. Comment
  POM146217  Spartina foliosa F. M. Reed 1927-11-25 5676 Orange Anaheim Landing Comment
  RSA483176  Spartina foliosa E. Yale Dawson 1948-8-15 5109 Orange Salt marshes bordering estuaries leading to Bolsas Bay. Comment
  RSA603015  Spartina foliosa L. C. Wheeler 1933-10-21 2220 Orange Near Newport Bay: 15 Comment
  SD80955  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2I(c) miles NW of Huntington Beach along south channel of Inner Bolsa bay, adjacent to Pacific Coast Hy. in Bolsa Chica Salt Marsh Comment
  IRVC2453  Spartium junceum L. Aldis 1965-3-27 s.n. Orange Black Star Canyon and Silverado Canyon Rds. Santa Ana Mountains Comment
  RSA734634  Spartium junceum A. C. Sanders, T. B. Salvato 2008-5-13 35365 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  IRVC361  Spergula arvensis M. Savage 1965-3-12 Orange Irvine Terrace. Newport Beach Comment
  IRVC368  Spergula arvensis D. Ibbetson 1965-4-16 Orange Newport Beach Comment
  UCR5168  Spergula arvensis Barbara T. Gittins, O. F. Clarke 1966-3-19 889 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  RSA696548  Spergula arvensis Minor Warne 1934-03 s.n. Orange Laguna Canyon Forks Comment
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Jun 24 2009
  RSA0013956  Spergularia macrotheca var. macrotheca Fred M. Roberts 2008-5-7 6943 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
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Feb 27 2019
  UCR220089  Spergularia macrotheca var. macrotheca Fred M. Roberts 2008-5-7 6943 Orange Lomas de Santiago, Limestone Ridge between Dripping Spring and Limestone Canyon, 3.5 km NW of Bolero Lookout and 1.7 km east of Bee Peak. Irvine Ranch Conservancy 481 Comment
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Feb 27 2019
  UCR180302  Spergularia marina Scott D. White 1998-6-26 6780 Orange Irvine, University of California, Irvine campus: low-lying seasonal wetland along mapped intermittent 'blueline' stream just north of Bonita Canyon Drive 70 Comment
  CAS-BOT-BC390854  Spergularia marina Carl B. Wolf 1932-6-28 3783 Orange Bryant Ranch, edge of field on Bryant Ave., 300 ft. west of north east corner of N.W.40 of S.E.160 of Sect. 27 T4S R11W Comment
  UCR20401  Spergularia rubra Albert J. Perkins 1926-4-27 s.n. Orange Pacific slope, City of Santa Ana, in a yard. Comment
  RSA610223  Spergularia salina Fred M. Roberts, Julie Vanderwier 1997-4-29 5021 Orange Bolsa Chica Salt Marsh; (US Fish & Wildlife Service cell 17) west of old oil field, 0.8 km. S SE Chica Survey Mark. 0 Comment
  UCSB52915  Spergularia salina Roberts, Fred; Marsh, K. 1983-5-13 Orange Dana Point Headlands; north of Dana Strand Road, 0.4 km. W Dana Point Harbor; 0.7 km. SSW Richard Henry Dana School 80 Comment
  SD104869  Spergularia villosa Darley Howe 1979-6-29 Orange Newport area. Comment
  IRVC26736  Spiloxene scullyi Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3174 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA68  Sporobolus airoides J. T. Howell 1927-6-21 181 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UC729887  Sporobolus airoides Carl B. Wolf 1932-7-7 3848 Orange Bixby Ave., 0.7 mi. w. of Hansen Rd., 0.2 mi. w. of s.e. corner of NE 40 of NW 160 of Sect 34 Bryant Ranch Comment
  CDA20477  Sporobolus indicus M. Sulsona 2004-5-19 PDR 1256361 Orange Southwestern California; Woodbury School in Garden Grove. 0 Comment
  RSA769613  Stachys E. W. Lathrop 1974-6-27 7410 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR274181  Stachys Dick Newell, Peter Wetzel 2016-6-7 429 Orange Peninsular Range; Santa Ana Mtns., Silverado Canyon, 0.1 mile NE of Blackstar Canyon Rd. intersection, near Silverado Creek 297 Comment
  POM202025  Stachys ajugoides L. M. Booth 1932-6-4 1146 Orange Newport Lagoon. Comment
  UC1618064  Stachys ajugoides Donald G. Nelson 1935-3-23 176 Orange hills n. Fullerton Comment
  UCR192975  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-6-17 35488 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  UC1294010  Stachys ajugoides var. rigida E. K. Balls 1958-7-27 23281 Orange 4.4 mi e Silverado (Gate); Santa Ana Mts., Silverado Canyon 1021 Comment
  RSA798185  Stachys rigida subsp. quercetorum Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49583 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA82568  Stachys rigida subsp. quercetorum F. W. Peirson 1924-5-31 4657 Orange Open Canyon, Laguna Beach. 91 Comment
  RSA0026254  Stachys rigida subsp. rigida Fred M. Roberts 2013-6-12 7796 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  RSA0026255  Stachys rigida subsp. rigida Fred M. Roberts 2013-6-12 7795 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  RSA0127596  Stachys rigida var. quercetorum Fred M. Roberts 2016-3-17 8026 Orange San Joaquin Hills: City of Irvine, west slope, Bommer Canyon along Turtle Ridge Trail, 0.8 km NE Signal Peak and 0.9 km SW Cattle Camp. 265 Comment
  SEINET9355912  Stachys stebbinsii Unknown 2011-9-27 39902 Orange Orange Co., CA Comment
  CAS-BOT-BC393825  Stellaria media C. B. Wolf 1931-3-6 1854 Orange Trabuco Camp Grounds, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  RSA743497  Stellaria media Fred M. Roberts 2008-3-19 6780 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  UCR222383  Stellaria media Mark A. Elvin 2003-1-26 2238 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  CAS-BOT-BC393818  Stellaria media Ira L. Wiggins 1966-2-12 20437 Orange W side of State College Boulevard, opposite end of Electra Way, Fullerton Comment
  JEPS51104  Stellaria media Alice King Apr 1908 Orange Santa Ana River Comment
  RSA683237  Stenotaphrum secundatum Scott D. White, Matt Carlton 2003-11-20 9867 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 24 Comment
  UCD86398  Stenotaphrum secundatum A. C. Sanders 1990-10-6 10191 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2 km inland of Hwy. 1. 1 Comment
  JEPS36708  Stephanomeria diegensis L. M. Booth 1932-8-5 1360 Orange Newport Bay Comment
  POM122552  Stephanomeria diegensis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  SD240903  Stephanomeria diegensis A. C. Sanders, Fred M. Roberts 2008-8-7 35995 Orange Peninsular Range: Santa Ana Mountains: lower Weir Canyon, at narrow gorge ca. 0.6 mile above mouth of canyon at Irvine Ranch gate (Orange/Blac Star Canyon 7.5'Q) 188 Comment
  POM186313  Stephanomeria exigua subsp. exigua Joseph A. Ewan 1932-6-28 7706 Orange Corona Del Mar Comment
  UCR190994  Stipa coronata A. C. Sanders, Fred M. Roberts 2008-4-22 35006 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
  SD251164  Stipa coronata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49617 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station. Dry, rocky bluffs above San Juan Creek 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
  RSA0011014  Stylocline gnaphaloides Fred M. Roberts 2012-5-10 7570 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
  RSA957  Stylocline gnaphaloides J. T. Howell 1928-4-15 917 Orange near east bundary of Rancho Santa Ana 213 Comment
  UCSB48120  Stylocline gnaphaloides Fritzke, S.; Roberts, Jr., Fred 1982-4-3 Orange Rancho Mission Viejo; Calif. 74, 7.2 km. by road E San Juan Capistrano; 1.3 km. NE Viejo Survey Marker 98 Comment
  CHSC116479  Styrax officinalis var. fulvescens R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49686 Orange Northern Santa Ana Mountains: Sierra Peak. [ locality information from field label; note on newspaper 'near Beek's Place, Skyline Drive crest, MDT Trail' (Main Divide Truck Trail] 899 Comment
  RSA0033805  Styrax officinalis var. fulvescens Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49686 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment