Search Results — 2000 specimen records retrieved (1625 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
  POM739  Abronia maritima D. L. Crawford 1916-7-28 s.n. Orange Abalone Point Comment
  CAS-BOT-BC229408  Abronia umbellata Peter H. Raven 1957-9-28 11374 Orange North limits of Surfside Comment
  CAS-BOT-BC229410  Abronia umbellata L. R. Abrams 1917-6-23 6573 Orange Balboa Comment
  RSA461005  Abronia umbellata M. B. Dunkle 1933-4-9 3293 Orange Huntington Beach. Comment
Read comments Jan 2 2015
  RSA0025969  Abronia villosa Dorothy Parsons 1932-3-28 s.n. Orange Buena Park Road. Comment
  POM201770  Abronia villosa var. aurita L. M. Booth 1932-6-25 1308 Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  SEINET891576  Acacia baileyana R. J. Barr 1964-1 64 -590 Orange Roadside near Capistrano Beach Comment
  SEINET946800  Acacia longifolia R. J. Barr 1964-1 64 -589 Orange Roadside near Capistrano Beach Comment
  CDA3995  Acacia retinodes D. G. Kelch 2006-12-9 6 .554 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  POM17839  Acer macrophyllum Philip A. Munz 1923-9-7 7732 Orange Santa Ana Mountains: on trail from Holy Jim Canyon to Santiago Peak 1220 Comment
  RSA7575  Acer macrophyllum Carl B. Wolf 1933-11-8 5541 Orange At Yaeyer's Cabin, Trabuco Canyon. 762 Comment
  RSA797915  Acer macrophyllum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49825 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UC718396  Acer macrophyllum P. C. Everett 1935-6-19 7239 Orange 2 6/10 mi below (w) Summit Truck Trail; Santa Ana Mts., Trabuco Canyon 914 Comment
  SEINET7063467  Achyrachaena mollis A. G. Vestal 1947-3-31 s.n. Orange About 2 miles southeast of Brea. UTM Zone 11, 415283mE, 3750494mN. (WGS84/NAD83). 90 Comment
  SD218336  Acmispon glaber Mark A. Elvin 2004-5-2 3406 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  SBBG120830  Acmispon heermannii var. heermannii A. C. Sanders, F. M. Roberts, M. Balk 2006-7-20 33005 Orange San Juan Cyn from Lower San Juan Picnic Area to ca. 1 mi downstream, parallel to Hwy 74 366 Comment
  JEPS9162  Acourtia microcephala L. M. Booth 1932-8-4 1243 Orange Newport Bay Comment
Read comments May 27 2017
  RSA746472  Acourtia microcephala R. E. Riefner Jr. 2008-5-13 08- 76 -a Orange Near City of Orange, W side of Hicks Haul Rd., Irvine Ranch Reserve, Management Area 11. Comment
  SD245240  Acourtia microcephala R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49626 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. Comment
  LA31221  Adenostoma fasciculatum David S. Verity; 1960-2-14 sn Orange one small area on ridge near summit of Temple Hills Dr. on E. slope of ridge, San Juaquin Hills behind Laguna Beach Comment
  RSA16343  Adenostoma fasciculatum Percy C. Everett 1935-6-18 7190 Orange Santa Ana Mountains. Main divide motorway to Santiago Peak, 1 mile from Ortega Highway. 732 Comment
  UCR194558  Adenostoma fasciculatum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35319 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA658199  Adenostoma fasciculatum var. fasciculatum T. A. Daubert 1991-5-19 653 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  RSA80653  Adenostoma fasciculatum var. fasciculatum Philip A. Munz, E. K. Balls 1952-8-19 17925 Orange West of Ortega Summit on road from Elsinore to Capistrano 793 Comment
  RSA0042819  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 Hwy 1 Comment
  SD247263  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. 0 Comment
  RSA0119682  Adiantum jordanii Fred M. Roberts 2015-3-10 7923 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  RSA649846  Adiantum jordanii D. E. Bramlet 2000-4-12 2979 Orange Tributary to Fremont Canyon. the site is 396m northwest of the Edison Spur road and 1.2km southeast of the Fremont ridge road. The locality is 305m southwest of knoll 1515. 372 Comment
  RSA689447  Adiantum jordanii Scott D. White, Amanda Duchardt 2003-4-10 9009 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  RSA698477  Adiantum jordanii R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  IRVC21803  Adiantum jordanii B. L. Parry, F. M. Roberts 1926-3-13 162 Orange Santa Ana Canyon. M.E. Jones POM 122866. San Joaquin Hills: Moro Canyon, Crystal Cove State Park, 2.9km SE Signal Peak; 3.5km NE El Morro School, Yorba Linda 150 Comment
Read comments Oct 25 2017
  RSA728658  Aeonium haworthii R. E. Riefner 2006-8-26 06 -377 Orange City of Laguna Beach, bluffs along Aliso Creek, N slope of Aliso Peak, Pacific Coast Hwy., E. of Aliso Beach. Aliso Beach County Park. 12 Comment
  RSA695487  Ageratum houstonianum Ruth Greenwald, Virginia Pritchard 1938-05 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC13326  Agoseris retrorsa L. R. Abrams 1901-6-15 1845 Orange Santiago Peak Comment
  RSA0013581  Agrostis pallens D. E. Bramlet 2008-5-28 4284 A Orange Bee Cyn., Bowerman landfill site, 468m S Bee Cyn access road & 434m W of the active landfill. Comment
  UCR219855  Agrostis pallens Fred M. Roberts 2008-6-3 7029 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, East Fork Rattlesnake Canyon, c. 2.6 km NE Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 225 Comment
  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
  CAS-BOT-BC135855  Allium haematochiton D. E. Breedlove 1962-3-9 1788 Orange 12.3 miles east of San Juan Capistrano on State 74. 243 Comment
  RSA0063249  Allium marvinii Philip A. Munz 1949-5-26 13373 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  POM19174  Allium monticola Philip A. Munz, D. Keck 1923-6-14 7095 Orange Santiago Peak. Summit. 1640 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
  RSA0119684  Allium praecox Fred M. Roberts 2015-3-10 7921 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  UCR5206  Allium praecox Barbara T. Gittins, O. F. Clarke 1966-3-19 902 A Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  RSA548861  Allium praecox Bernard Jaroslow 1990-4-25 B- 37 Orange Sitton Peak Truck Trail: Trailhead 0.3 mile W of ranger station near hot springs, on Ortega Highway (SR 74) Comment
  RSA759268  Allium praecox Robt. Allen, Reginald Durant, David Taylor 2008-4-11 s.n. Orange 1.6 road mi EENE above Maple Springs Forest Gate, between Lost Woman Canyon and Spruce Canyon. 740 Comment
  RSA16496  Allophyllum glutinosum Percy C. Everett 1935-6-18 7211 Orange Santa Ana Mts., summit of Santiago Pk. 1732 Comment
  RSA410096  Allophyllum glutinosum M. B. Dunkle 1934-6-18 3970 Orange Upper San Juan Canyon. 610 Comment
  RSA410099  Allophyllum glutinosum Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak. Comment
  RSA588705  Allophyllum glutinosum Fred M. Roberts, Carol A. Roberts 1990-5-23 4646 Orange Santa Ana Mtns.: West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5 km SE Los Pinos Peak. 756 Comment
  CAS-BOT-BC170688  Alnus rhombifolia John Thomas Howell 1927-7-21 2810 Orange Santa Ana River bottom, Santa Ana Canon [canyon] 152 Comment
  RSA696334  Alnus rhombifolia R. H. McArthur 1934-2-10 s.n. Orange Santiago Canyon above Modjeska Comment
  SD239633  Alnus rhombifolia A. C. Sanders, Kent Beaman 2011-9-27 39903 Orange Peninsular Ranges, Santa Ana Mountains: Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347a^z) of Santiago Peak (Santiago Peak 7.5'Q) 903 Comment
  IRVC26735  Aloe Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3156 Orange UCI Arboretum Southern Coastal 15 Comment
  POM201929  Amaranthus albus L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  RSA402963  Amaranthus albus Albert J. Perkins 1912-10-15 s.n. Orange Peatlands near head Newport Bay. Comment
  RSA696429  Amaranthus blitoides Keith E. Hoffmaster 1933-10-1 334 Orange Near Tustin Comment
  UCR193848  Amaranthus blitoides A. C. Sanders, Fred M. Roberts 2008-7-16 35880 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  RSA542440  Amaranthus blitoides Fred M. Roberts 1988-10-21 4162 Orange Irvine: Alton Parkway at corner of Jeffrey Rd., 1.5km NNE French Survey Mark. 35 Comment
  RSA723483  Amaranthus blitum subsp. emarginatus R. E. Riefner 2004-8-8 4 -370 Orange City of Anaheim, Santa River bottom near 57-Freeway between Orangewood St. and Chapman Ave. 41 Comment
  RSA724071  Amaranthus blitum subsp. emarginatus R. E. Riefner 2005-7-9 5 -546 Orange City of Huntington Beach, Huntington Central Park at Goldenwest St. 1 Comment
  UCR23424  Amaranthus hybridus Alfred R. Roos 1937-12-2 s.n. Orange Santa Ana Comment
  RSA184187  Amaranthus hybridus I. L. Wiggins 1965-11-7 20357 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  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
  UCR23422  Amaranthus powellii John C. Roos 1937-8-31 2558 Orange San Juan Capistrano [beach] Comment
  RSA5808  Amaranthus retroflexus C. B. Wolf 1932-6-28 3774 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA562747  Amaranthus retroflexus Steve Boyd 1992-5-19 7443 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
  IRVC8602  Amblyopappus pusillus J. B. Anderson 1966-4-16 577 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  IRVC8604  Amblyopappus pusillus J. B. Anderson 1966-4-16 577 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  UC536894  Amblyopappus pusillus Lawrence M. Booth 1932-5-12 1007 Orange Newport Bay Comment
  SEINET6738510 Image available Amblyopappus pusillus L. C. Wheeler 1932-6-25 859 Orange Newport Bay 1 Comment
  SD234274  Ambrosia acanthicarpa T. B. Salvato, K. Kurtz 2006-10-15 1916 Orange South Coast: Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue. 6 Comment
  CAS-BOT-BC13770  Ambrosia chamissonis David D. Keck 1933-9-8 2540 Orange Sunset Beach Comment
  JEPS20090  Ambrosia chamissonis Peter H. Raven 1957-9-28 11370 Orange north limits of Surfside Comment
  RSA640713  Ambrosia chamissonis L. C. Wheeler 1931-8-12 s.n. Orange Balboa. Comment
  RSA643442  Ambrosia chamissonis R. D. Goeden, D. W. Ricker 1970-2-19 s.n. Orange Pacific Coast: Newport Beach, NW edge of town between Seashore Dr., Neptune Ave.. 56th and 58th Streets., 33deg. 37.2'N, 117deg. 57'W 2 Comment
  RSA747703  Ambrosia chamissonis Fred M. Roberts 2008-5-16 6976 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  UCR209660  Ambrosia chamissonis Fred M. Roberts 2008-5-16 6976 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, along north slopes above Dana Strand Beach, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 45 Comment
  UCSB52398  Ambrosia psilostachya Roberts, Fred 1982-10-4 Orange Laguna Niguel; Niguel Hill, 2.7 km. NNE Aliso Peak; 1.5 km. WNW Alicia Fire Station 160 Comment
Read comments Jan 25 2020
  IRVC25169  Ambrosia psilostachya var. californica Fred M. Roberts, Brenda Fugle 1986-10-1 3146 Orange Laguna Hills; creek channel along Cabot Rd. ca. 1.0km N Pacific Park Pkwy. Southern Coastal 99 Comment
  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
  POM48524  Ammannia robusta F. M. Reed 1924-8-15 4962 Orange Laguna Lake bed - Laguna canyon. Comment
  UC217856  Ammannia robusta P. A. Munz 1922-9-2 6353 Orange Laguna Canyon 45 Comment
  POM201704  Ammi visnaga L. M. Booth 1932-7-18 1268 Orange Santa Ana River, 1 mile from Ocean. Comment
  UC1137526  Amorpha californica var. californica A. Lewis 1934-5-1 419 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle 1341 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
  RSA0090945  Amsinckia eastwoodiae James Snow s.n. Orange Plants of the Bryant Ranch, near Long Beach. Comment
  OBI6061  Amsinckia intermedia Carl B. Wolf 1931-3-6 1864 Orange E side of Orange county Park 152 Comment
  RSA450858  Amsinckia intermedia Gordon Marsh 1978-10-19 s.n. Orange UC Irvine Ecological Preserve. 98 Comment
  RSA680914  Amsinckia intermedia Scott D. White 2003-3-21 8812 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UC1061778  Amsinckia intermedia A. Lewis Mar 1934 349 Orange San Juan Hills; Corona Quad., San Juan Hills 396 Comment
  UC1178238  Amsinckia intermedia Francia Chisaki 1957-4-3 928 Orange 6 mi s Irvine (just s of El Toro near top of hill on Hwy 101) Comment
  UCR222382  Amsinckia intermedia Mark A. Elvin 2003-1-26 2236 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA0089446  Amsinckia intermedia Daniel Truong 1991-5-5 10 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of closed area. Comment
  IRVC217  Amsinckia menziesii var. intermedia J. Schram 1965-4-18 Orange Corona del Mar, Corona Highland Gully [=Buck Gully?]. Newport Beach Comment
  IRVC245  Amsinckia menziesii var. intermedia D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  RSA572  Anagallis arvensis J. T. Howell 1927-7-27 s.n. Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  UCR102025  Anagallis arvensis B. G. Pitzer 1997-3-25 3016 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  RSA465158  Anagallis arvensis N. C. Cooper 1944-6-4 1353 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA701652  Anagallis arvensis Stephen Bruff s.n. Orange Lemon Heights. Comment
  UC1618061  Anemopsis californica Donald G. Nelson 1935-6-2 320 Orange n of Brea (mouth of Brea Canyon, on Tonner lease); mouth of Brea Canyon Comment
  RSA652673  Anemopsis californica R. Spence 1974-8-13 s.n. Orange Upper Newport Bay. Hillsides around Bay. Comment
  CDA6811  Anthemis cotula Robert L. Pope 1957-6-21 Orange Moulton Ranch. 0 Comment
  IRVC15192  Anthemis cotula S. C. Bough 1972-4-28 Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC17997  Anthemis cotula A. B. McGee 1970-9-9 Orange San Diego Creek Channel adjacent to San Joaquin Freshwater Marsh. Irvine Comment
  RSA749473  Antirrhinum kelloggii Fred M. Roberts, Linda Farley 2008-3-28 6828 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  CHSC101739  Antirrhinum multiflorum R. E. Riefner Jr. 2008-7-21 08 -2248 Orange Irvine Ranch Reserve, North Irvine Ranch, middle Fremont Canyond, east slope along Black Star SCE Rd. UTM: 11S 0437874E 370552N. 717 Comment
Read comments Dec 14 2012
  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
  UCR229212  Antirrhinum nuttallianum Dick Newell, Peter Wetzel 2011-6-28 200 Orange South Coast, San Joaquin Hills, Willow Canyon, Laguna Coastal Wilderness Park 89 Comment
  UCR274178  Antirrhinum nuttallianum Dick Newell, Don Millar, Nicole Kahal 2015-6-9 409 Orange Peninsular Range; Santa Ana Mtns., foothills west of Black Star Canyon Road, at the end of the service road going to Edison's tower, 2/10 mile south of Lake View Rd. off State Spur 577 Comment
  UCR141341  Aphanisma blitoides Robert DeRuff 1991-1 422 Orange Southern Coast, Newport Beach, Newport Back Bay, east of Delhi Ditch; bluff side of the wooden horse and bike path 6 Comment
  RSA598964  Apiastrum angustifolium Scott D. White 1997-3-28 4836 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA731994  Apiastrum angustifolium A. C. Sanders, L. Farley, F. M. Roberts, D. E. Bramlet 2008-4-1 34656 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  UC1607981  Apiastrum angustifolium Donald G. Nelson 1935-4-6 228 Orange just s of boundary of Cleveland National Forest (e of San Juan Capistrano, northward from the summer ranger station at main Hwy up San Juan Canyon); San Juan Canyon Comment
  UCR100451  Apium graveolens B. G. Pitzer 1996-4-30 2771 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  IRVC20014  Apocynum cannabinum var. glaberrimum Gordon A. Marsh, K. G. Marsh 1981-7-26 Orange Cleveland National Forest; Lion Canyon, near mouth. Santa Ana Mountains Comment
  RSA0054901  Arabis glabra Keith E. Hoffmaster 1934-4-22 178 Orange Santa Ana mts. [Orange or Riverside]. Comment
  CAS-BOT-BC171630  Aralia californica James R. Shevock 1976-10-28 5358 Orange Along Silverado Canyon Road int he vicinity of Bigcone Spring, Santa Ana Mts., Cleveland National Forest 914 Comment
  UCR273466  Araujia sericifera Eric Focht 2016-7-8 001 Orange South Coast, University of California Research and Extension Center, 7601 Irvine Blvd., Irvine 13 Comment
  CAS-BOT-BC23104  Arctostaphylos glandulosa subsp. glandulosa John Thomas Howell 1927-6-26 2603 Orange Claymine Canyon, n. Santa Ana Mts. 457 Comment
  CAS-BOT-BC402202  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49708 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SD247632  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49683 Orange Northern Santa Ana Mountains; Coal Canyon [NW of Sierra Peak] 456 Comment
  UC1120327  Arctostaphylos glandulosa subsp. zacaensis H. A. Jensen 1937-11-4 442 Orange head of Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  RSA544  Arctostaphylos glauca var. glauca J. T. Howell 1927-6-26 223 Orange Claymine Canyon, near Sierra Peak. 457 Comment
  SEINET4085709  Argemone munita var. robusta G. B. Ownbey, F. Ownbey 1954-1 2177 Orange Between Modjesca Peak and Santiago Peak. 1524 Comment
  RSA38  Aristida adscensionis var. modesta J. T. Howell 1928-2-26 856 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA588773  Aristida purpurea var. parishii Fred M. Roberts, Carol A. Roberts, D. Bontrager 1990-4-28 4590 Orange Rancho Mission Viejo: Christianitos Canyon, 4.0 kilometers E Playa Survey Marker; UTM Z11 37 06 600m N, 4 47 600m E. 174 Comment
  RSA704071  Aristida purpurea var. parishii D. E. Bramlet, Fred M. Roberts 2003-3-13 3336 Orange Donna O'Neill Reserve. North east ridge line 762m W of Cristianitos Rd., and 1.15 km N of the E-W Access road., 11S 04 46 955E, 37 05 838N) 198 Comment
  UCR130496  Aristida purpurea var. parishii R. E. Riefner Jr. 2000-8-3 00- 7012 Orange Santa Ana Mountains, North Ranch Policy Plan Area, east of Main Divide Road and Windy Ridge 535 Comment
  UCR209342  Aristida purpurea var. purpurea Fred M. Roberts 2008-4-22 6923 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, along Haul Road near asphalt plant, 2.2 km east-northeast of Rattlesnake Reservoir Dam and 2.2 km west-northwest of Bee Peak, Irvine Ranch Conservancy 188 Comment
  UCD56385  Aristida ternipes var. gentilis D. E. Bramlet; Fred Roberts 2003-3-13 3336 Orange Donna O'Neill Reserve, north east ridgeline 762 m west of Cristianitos Rd., and 1.15 km north of the E-W Access Road. 198 Comment
  RSA539375  Aristida ternipes var. hamulosa Fred M. Roberts, Karlin G. Marsh 1989-3-7 4196 Orange Lomas de Santiago: Loma Ridge, tributary to Hicks Canyon, 1.7 kilometer W Bee Survey Mark., UTM 37 32 400m N, 4 33 500m E 204 Comment
  SD52987  Arnica discoidea Peter H. Raven 1962-5-18 17751 Orange 4.8 miles above Gate on Silverado Canyon Truck Trail, Santa Ana Mountains 1064 Comment
  RSA759263  Arnica discoidea Robt Allen, Christopher M. Barnhill 2008-5-26 s.n. Orange upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs forest gate, 0.8 road miles down from junction with Main Divide Truck Trail. SW end of short road spur. 1313 Comment
  IRVC28770  Artemisia californica Elizabeth H. Hook, Caroline Tran 2006-2-4 1 Orange San Joaquin Marsh; NW bluff edge Southern Coastal 5 Comment
  UCR131889  Artemisia californica J. Mallory, V. McCoy 1995-7-3 6454- 70 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  UCR92774  Artemisia californica F. M. Reed 1927-11-10 5640 Orange South Coast, Sulfur Slide Hill in Santa Ana River Canyon 150 Comment
  UCSB52400  Artemisia californica Roberts, Fred 1982-9-15 Orange Santa Ana Mtns.; San Juan Trail, 1.1 km. SE Blue Jay Campground; 2.5 km. SSE Los Pinos Peak 997 Comment
Read comments Jan 25 2020
  CAS-BOT-BC90564  Artemisia dracunculus John Thomas Howell 1927-9-24 3110 Orange on n. side of Santa Ana [Canon] Canyon 213 Comment
  RSA417326  Artemisia dracunculus F. R. Fosberg 1931-6-21 S 5089 Orange Lower Santiago Canyon. Comment
  RSA774  Artemisia dracunculus J. T. Howell 1927-9-24 752 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  RSA0042766  Artemisia palmeri Fred M. Roberts 2012-7-18 7669 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  RSA784180  Artemisia vulgaris J. D. Olmsted 1959-8-26 836 Orange Drainage area to Santiago Reservoir. Mouth of Black Star Canyon east of Santiago Reservoir. 320 Comment
  UCSB23299  Arthrocnemum subterminale Keefe, Joseph 1967-3-26 Orange Newport Bay, on Back Bay Drive, 2.0 miles northeast of junction with Jamboree Drive, Corona del Mar 3 Comment
  RSA703364  Arthrocnemum subterminale R. E. Riefner Jr. 2004-5-6 4 -172 Orange Newport Beach, north side of Pacific Coast Hwy., west of Bayside Drive near Newport Dunes Beach Club. 10 Comment
  SEINET7114906  Asclepias physocarpa M. B. Sady 1992-6-22 s.n. Orange U.C. Irvine Arboretum Comment
  RSA743383  Asparagus asparagoides Fred M. Roberts 2008-5-27 7002 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  UCR149413  Asphodelus fistulosus Fred M. Roberts 2000-6-5 5337 Orange Chino Hills, Yorba Linda, along Hidden Hills Dr. near Sunbeam Lane, on ridge above Box Canyon 376 Comment
  IRVC16667  Aspidotis californica Gordon A. Marsh, K. G. Marsh 1979-9-24 Orange Pine Canyon, along dirt road above Blue Light Mine, Santa Ana Mountains Comment
  POM201791  Aster hesperius L. M. Booth s.n. Orange Newport Beach Comment
  UCR210368  Aster subulatus T. B. Salvato, Billy Deane 2006-10-16 1940 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA784  Aster subulatus var. ligulatus J. T. Howell 1927-9-24 750 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  CAS-BOT-BC177875  Astragalus didymocarpus var. didymocarpus Helen D. Geis 1902-4-1 s.n. Orange Dry bed of Santiago Creek in [canon] canyon Comment
  IRVC26585  Astragalus didymocarpus var. didymocarpus Karlin G. Marsh 1983-4-11 s.n. Orange Laguna Beach: Sycamore Hills; dirt road surface of central ridge line. southern coastal Comment
  UC1980258  Atriplex R. E. Riefner Jr. 2008-3-24 08 -67 Orange City of Seal Beach, Bolsa Chica Salt Marsh, Warner Ave. at Pacific Coast Highway. Comment
  RSA743663  Atriplex R. E. Riefner 2006-9-6 6 -425 Orange City of Newport Beach, Newport Bay, Big Canyon Creek drainage near Back Bay Dr. 9 Comment
  UC1543167  Atriplex Donald G. Nelson 1935-6-28 339 Orange Fullerton, dry roadside on S. Gilbert Ave. Comment
  SBBG122002  Atriplex amnicola R. E. Riefner 2006-2-12 06 -21 Orange Interstate 5, immediately S of Camino de Estrella exit ramp, N end of San Clemente 66 Comment
Read comments Dec 13 2012
  CDA2883  Atriplex amnicola R. E. Riefner Jr. 2006-8-6 06 -381 Orange City of Newport Beach, Newport Bay, Big Canyon Creek drainage near Back Bay Drive. Comment
  RSA737231  Atriplex amnicola R. E. Riefner 2006-5-7 06 -178 Orange N end of City of San Clemente, along I5, N side, immediately S of Camino De Estrella exit ramp. 66 Comment
  RSA737243  Atriplex amnicola R. E. Riefner 2006-4-17 06 -155 Orange Upper Newport Bay, near Bayview Wy and Bayview Pl. 7 Comment
  RSA743665  Atriplex amnicola R. E. Riefner 2007-9-11 7 -378 Orange City of San Juan Capistrano, vicinity of San Juan Creek road and Paseo Christina. 34 Comment
  RSA743668  Atriplex amnicola R. E. Riefner 2007-8-4 7 -344 Orange City of San Juan Capistrano, San Juan Creek, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  RSA65355  Atriplex argentea F. W. Peirson 1924-8-29 5090 Orange Corona Del Mar Comment
  UC523561  Atriplex argentea var. mohavensis David D. Keck 1933-10-3 2538 Orange 50 m from ocean (Sunset Beach); Sunset Beach Comment
  UC7076  Atriplex argentea var. mohavensis O. B. Byram 1901-9-10 Orange Westminster Comment
  POM17484  Atriplex californica P. A. Munz 1923-4-1 6912 Orange Laguna Lakes. 61 Comment
  POM201897  Atriplex californica L. M. Booth 1932-5-19 1061 Orange Newport Beach Comment
  UCR266400  Atriplex californica D. E. Bramlet 1991-5-15 3055 Orange South Coast, Dana Point 30 Comment
  RSA703387  Atriplex californica R. E. Riefner Jr. 2004-5-6 4 -170 Orange Newport Beach, north side of Pacific Coast Hwy., west of Bayside Drive near Newport Dunes Beach Club. 10 Comment
  POM201811  Atriplex canescens L. M. Booth 1932-7-1 1249 Orange Newport Lagoon. Comment
  RSA452458  Atriplex canescens Albert J. Perkins 1923-6-28 s.n. Orange Santa Ana, Crescent Beach Comment
  SD40182  Atriplex canescens Edith A. Purer 1932-8-31 4869 Orange Near Route 101. Comment
  IRVC24454  Atriplex canescens subsp. canescens Fred M. Roberts 1985-11-20 2560 Orange Newport Back Bay, near Camp Survey Mark, Newport Beach 2 Comment
  UCR98213  Atriplex canescens subsp. canescens B. G. Pitzer 1996-4-30 2789 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  CDA23240  Atriplex canescens var. laciniata R. E. Riefner Jr. 2006-8-6 06 -377 Orange City of Newport Beach, Newport Bay, San Joaquin Road at Back Bay Drive. Comment
  POM201920  Atriplex coulteri L. M. Booth 1932-5-18 s.n. Orange Newport Bay. Comment
Read comments Feb 3 2015
  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
  UCR130490  Atriplex glauca R. E. Riefner Jr. 2002-5-4 02- 101 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  SD220050  Atriplex lentiformis Mark A. Elvin 2004-5-2 3423 Orange Irvine: SanJoaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  POM278739  Atriplex lentiformis subsp. breweri Grant D. Brown 1949-10-9 399 Orange 4 miles N. of San Clemente on hyway 101 Comment
  RSA312125  Atriplex leucophylla N. C. Cooper 1942-11-9 884 Orange Balboa Comment
  RSA478321  Atriplex leucophylla Ella M. Kennedy 1924-5-14 s.n. Orange Laguna Beach. Comment
  JEPS48895  Atriplex pacifica Lawrence M. Booth 1932-5-19 1069 Orange Newport Bay Comment
  RSA251  Atriplex prostrata J. T. Howell 1927-10-29 s.n. Orange Bryant Ranch, near Long Beach. 15 Comment
  RSA717049  Atriplex prostrata Fred M. Roberts, Chris M. Barnhill 2005-9-27 6282 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  RSA743462  Atriplex semibaccata Fred M. Roberts 2008-7-10 7070 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  POM202120  Atriplex semibaccata P. A. Munz 1934-3-26 13136 Orange Newport Beach. 5 Comment
  RSA184160  Atriplex semibaccata I. L. Wiggins 1965-10-24 20280 Orange Roadside along Skyline Drive near intersection with Raymond Street, Fullerton. Comment
  POM201891  Atriplex serenana L. M. Booth 1932-5-19 1070 Orange Newport Lagoon, Corona del Mar. Comment
  SBBG65356  Atriplex watsonii M. N. Ackley 1928-9-22 419 Orange Sunset Beach 8 Comment
  RSA453974  Atriplex watsonii Anstruther Davidson 1902-09 1767 Orange Newport Beach. Comment
  UCD56106  Avena barbata A. A. Beetle 1942-4-19 3259 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  RSA737544  Avena fatua Fred M. Roberts 2008-3-12 6717 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCSB42557  Avena fatua Romspert, Alan 1966-3-2 Orange Carbon Canyon, 0.5 mi E of Carbon Canyon Dam Comment
  UCSB47968  Avena fatua Roberts, Fred 1980-3-3 Orange Hills 1.5 km ENE of Dana Hills High School; Dana Point 85 Comment
  RSA151095  Baccharis douglasii Peter H. Raven 1961-10-15 16861 Orange Coast Hwy 2 miles SE of Sunset Beach 0 Comment
  CHSC35829  Baccharis emoryi James Henrickson 1972-10-21 8047 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave, just N of Santa Ana River. 60 Comment
  SDSU6382  Baccharis emoryi D. F. Howe 1945-10-20 1353 Orange Santa Ana River between Orange and Corona. Comment
Read comments Jan 24 2013
  RSA741700  Baccharis malibuensis R. E. Riefner Jr. 2008-7-17 08 -241 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Rd. 600 Comment
  CAS-BOT-BC99443  Baccharis pilularis P. C. Everett 1934-7-31 6045 Orange east of Administration Bldg., Rancho Santa Ana Botanic Garden 198 Comment
  CAS-BOT-BC99445  Baccharis pilularis B. Pitzer; T. Tennant 1997-11-8 3376 Orange Crystal Cove State Park: Pelican Point Area, grassland area between Pacific Coast Hwy & the bike trail 30 Comment
  CAS-BOT-BC99446  Baccharis pilularis B. Pitzer; T. Tennant 1997-11-8 3374 Orange Crystal Cove State Park: Pelican Point Area, grassland area between Pacific Coast Hwy & the bike trail 30 Comment
  IRVC29757  Baccharis pilularis Barry S. Nerhus, Mark A. Elvin 2006-11-4 10 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA613761  Baccharis pilularis B. Pitzer, T. Tennant 1997-11-8 3374 Orange Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 Comment
  RSA719421  Baccharis pilularis Fred M. Roberts, Lee Ann Caranza 2006-10-25 6456 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  RSA731919  Baccharis pilularis Fred M. Roberts, Sandy Leatherman 2007-11-27 6660 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  UCR186681  Baccharis pilularis T. B. Salvato, Katie Kurtz 2006-10-15 1914 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  IRVC517  Baccharis pilularis subsp. consanguinea A. S. Boughey 163 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  CAS-BOT-BC106733  Baccharis salicifolia John Thomas Howell 1927-10-23 3171 Orange Sandy flats of Santa Ana River bottom, Santa Ana Canyon [Canon] 152 Comment
  POM350366  Baccharis salicifolia N. C. Cooper 1949-3-18 3166 Orange Santa Ana Canyon 244 Comment
  POM350369  Baccharis salicifolia Gale Sphon 1955-3-13 s.n. Orange Silvarado canyon Comment
  UCR154338  Baccharis salicifolia Mark A. Elvin 2004-5-2 3414 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UC1532995  Baccharis salicifolia subsp. salicifolia Robert F. Thorne 1975-4-6 45577 Orange Head of Newport Bay Comment
  UCR207540  Baccharis salicina O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  RSA0069228  Bacopa monnieri Fred M. Roberts, Sandra Leatherman 2008-9-3 7090 Orange Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave. 113 Comment
  RSA113260  Barbarea orthoceras E. K. Balls 1955-4-4 20427 Orange 2.7 miles SW from Orange Riverside county line, along Hwy 74, San Juan Capistrano to Elsinore. 305 Comment
  RSA730993  Barbarea orthoceras Fred M. Roberts 2006-11-15 6467 Orange Santa Ana Cyn., Santa Ana RIver, north bank, 1.1 km ENE Imperial Hwy crossing. At river s edge at base of cement bank on sandy soil in narrow riparian herb community. 85 Comment
  CDA7901  Bassia hyssopifolia Adam Ontiveros 2008-7-8 PDR# 1543672 Orange Anaheim, 1750 S. Douglass Rd 0 Comment
  CHSC26008  Bassia hyssopifolia James Henrickson 1970-7-24 4953 Orange 1 1/2 miles NW of Huntington Beach, along border of Bolsa Chico Salt Marsh at SW end of Huntington Beach Mesa. 7 Comment
  SBBG47296  Bassia hyssopifolia R. N. Philbrick 1973-8-31 Orange marsh just E of University of California, Irvine Comment
  CAS-BOT-BC75513  Batis maritima A. Davidson M. D. 1907-9-7 s.n. Orange Newport. Comment
  CAS-BOT-BC75515  Batis maritima C. B. Wolf 1934-7-29 6041 Orange Newport Bay. 0 Comment
  CAS-BOT-BC75516  Batis maritima Peter H. Raven 1958-7-5 13559 Orange Just north of Surfside. Comment
  SD80954  Batis maritima James Henrickson 1970-7-25 5034 b Orange 3.5 miles northwest of Huntington Beach on sandy margin of Bolsa Bay, 0.25 southeast of Warner Avenue along Pacific Coast Highway 0 Comment
  UC1779705  Batis maritima Rudolf Schmid 1999-7-14 1999 -6 Orange Bolsa Chica Marsh, S of Seal Beach. From the S side of parking lot by HW1. Comment
  UCR192097  Bebbia juncea A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35283 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 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
  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
  SD247611  Berberis dictyota R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49716 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail Comment
  RSA234518  Beta vulgaris James Henrickson 1970-7-25 5082 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
  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
  RSA717046  Bidens laevis Fred M. Roberts 2005-10-3 6289 Orange San Juan Capistrano: San Juan Creek, La Novia Road bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  CAS-BOT-BC128000  Bidens pilosa Ira L. Wiggins 1965-10-24 20287 Orange Bank of storm drain at corner of Yorba Linda and State College Blvds., Fullerton Comment
  UC536947  Bidens pilosa Lawrence M. Booth 1932-7-19 1276 Orange Bolsas Marsh Comment
  CAS-BOT-BC127999  Bidens pilosa Ira L. Wiggins 1965-11-5 20328 Orange Orange grove on N. side of Chapman Avenue near Kraemer Road, Fullerton Comment
  SFV673  Bloomeria crocea E. B. Carlton 1962-6-24 9 Orange Laguna Beach. Private road from Hidden Valley Road to Temple Hills Drive. 183 Comment
  RSA698737  Bloomeria crocea L. C. Hall 1934-4-1 s.n. Orange Panerama Heights Comment
  UCR16608  Bloomeria crocea var. crocea Kenneth Hibberd 1966-4-30 660430- 3 Orange 0.5 mi S on Mohler Rd. in the Santa Ana Canyon, 5 mi west of Riverside Co. 244 Comment
  UCR251738  Bloomeria crocea var. crocea R. E. Riefner Jr. 2014-5-13 14- 120 Orange South Coast, City of San Clemente, Rancho San Clemente Trail, east c. 0.15 mi. from Ave. Salvador and south c. 0.1 mi. off Utility Access Rd. 239 Comment
  UCR86993  Bloomeria crocea var. crocea B. G. Pitzer, Stu Hemstreet 1992-5-27 1955 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
  CAS-BOT-BC434509  Boerhavia diffusa E. L. Paddock 1943-6-16 12735 Orange Santa Fe Railroad, Gypsum Station Grounds, just west of crossing east of Gypsum Comment
  UCR266417  Bolboschoenus maritimus D. E. Bramlet 2009-11-20 4418 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  UCSB36205  Bolboschoenus maritimus Ferren, Wayne; Whitmore, S. 1980-8-27 Orange Along tidal ditch, in salt marsh of Newport Backbay; just W of Backbay Drive; ca. 3 km. NE of Rt. 1, Newport Beach Comment
  SD127868  Bolboschoenus maritimus subsp. paludosus Richard Marin 1971-5-11 M 71 80 Orange Corner of MacArthur Blvd. and University Drive, Irvine 0 Comment
  RSA37  Bothriochloa barbinodis J. T. Howell 1927-6-5 38 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA450867  Bothriochloa barbinodis Gordon Marsh, Karlin G. Marsh 1977-11-21 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. Comment
  RSA788247  Bothriochloa barbinodis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49623 Orange Santa Ana Mountains: along Ortega Highway (74), about 1/4 mile above San Juan Fire Station Comment
  SD233245  Bothriochloa barbinodis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49623 Orange Santa Ana Mountains: along Ortega Highway (74) about 1/4 mile above San Juan Fire Station. Comment
  UCD169656  Bothriochloa barbinodis R. F. Thorne; E. W. Lanthrop, W. Wisura 1977-7-8 49623 Orange Santa Ana Mountains: along Ortega Highway (74), about 1/4 mile above San Juan Fire Station. 600 Comment
  UCD56813  Bothriochloa barbinodis W. M. Cory 1957-7-26 s.n. Orange El Toro. Whiting Ranch. Comment
  RSA734975  Brachychiton populneum A. C. Sanders, Fred M. Roberts 2008-6-17 35479 Orange Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA709698  Brachypodium distachyon Scott D. White, Jennifer H. Jones 2005-4-26 10973 Orange City of Laguna Beach. 549 Nyes Place. Undeveloped lot within a residential neighborhood. Proposed for new home. Comment
  UCR140793  Brachypodium distachyon Robin G. Marushia 2004-5-4 024 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  UCR149498  Brachypodium distachyon Scott D. White, Michael Honer 2004-5-17 10385 Orange South Coast, City of Laguna Niguel. Ridges and open slopes directly N of the intersection of Crown Valley Parkway and Pacific Island Dr 183 Comment
  IRVC1027  Brassica geniculata I. L. Wiggins 1965-10-24 20281 Orange [East Coyote Hills] along Skyline Dr. near Raymond St. Fullerton 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
  RSA0015953  Brassica nigra A. C. Sanders 2012-5-2 7688 Orange Lomas de Santiago: Loma Ridge, Las Flores Canyon at west end of ridge 0.4 km ESE Orange County Emergency Operations Center (hill 1311) and 2.4 km WSW Irvine Lake Park. 362 Comment
Read comments Nov 17 2018
  HSC6579  Brassica nigra Anonymous 1961-3-29 Orange Newport Beach above upper Newport Bay Comment
  RSA0066334  Brassica nigra B. Pitzer 1996-4-30 2808 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (Pacific Coast Hwy). 15 Comment
  RSA0084260  Brassica nigra Caralisa Breidenbaugh, Mark Breidenbaugh 1992-1-5 19 Orange 1/2 mile south of Chino Hills State Park Boundary. 198 Comment
  UCSB48205  Brassica nigra Roberts, Fred 1981-5-2 Orange Mission Viejo: Camino Capistrano; 1.7 km. N Crown Valley Parkway 49 Comment
  HSC6583  Brassica rapa J. W. Johnson 1961-3-29 Orange Newport Beach, along upper Newport Bay Comment
  CAS-BOT-BC36769  Brassica rapa Ira L. Wiggins 1966-2-12 20427 Orange North side of La Palma Avenue near Harbor Boulevard, Anaheim. Comment
  CSUSB529  Brassica rapa subsp. sylvestris Shirley Hill 1963-3-23 630323 4 Orange Field in back of Enco Station on Carolina st. Placentia. Abandoned field with other weeds Comment
  IRVC1017  Brassica rapa subsp. sylvestris J. Morgan 1965-2-21 Orange Corona del Mar, Bayside Dr. and Coast Hwy acrosss from Beacon Bay. Newport Beach Comment
  RSA764022  Brickellia californica Doris Bowers 1970-10-26 1706 Orange Black Star Canyon 610 Comment
  RSA0043361  Brickellia desertorum Fred M. Roberts 2013-8-9 7803 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 1.3 km up stream Black Star Road crossing. 323 Comment
  RSA655021  Brodiaea filifolia R. A. Hamilton 1998-6-19 s.n. Orange SCE easement north of the Foothill Transportation Corridor. The site is 1.3km north of El Toro Road and 1.6km east of Portola Parkway. 290 Comment
  RSA658595  Brodiaea filifolia David E. Bramlet 2001-5-23 3145 Orange Prima Deshecha landfill. The site is located 671m southwest of the landfill entrance and 46m south of the existing ridgeline access road. 134 Comment
  RSA184166  Bromus arizonicus I. L. Wiggins 1966-3-1 20482 Orange Along W edge of California State College, Fullerton. Comment
  POM50858  Bromus carinatus Le Roy Abrams 1901-06 1844 Orange Mt. Santiago. Comment
  RSA562762  Bromus carinatus Steve Boyd, Timothy S. Ross 1992-5-19 7417 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon. Comment
  SD241668  Bromus carinatus A. C. Sanders 2008-4-29 35144 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 miles SW of Santiago Reservoir (Black Star Canyon 7.5'Q) 334 Comment
  CAS-BOT-BC156203  Bromus catharticus Ira L. Wiggins 1965-9-29 20265 Orange Orange grove at corner of State College Boulevard and Nutwood Drive, margin of California State College at Fullerton campus, Fullerton. Comment
  RSA725588  Bromus catharticus Fred M. Roberts 2007-8-6 6560 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  CAS-BOT-BC156006  Bromus diandrus P. Munz; L. Street; G. Williams 1919-5-3 2644 Orange Santa Ana River Canyon. Comment
  RSA0013959  Bromus diandrus Fred M. Roberts 2008-5-7 6939 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
  RSA0042731  Bromus diandrus David Barrios 1991-5-1 19 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA126901  Bromus hordeaceus A. Lewis 1934-04 [ 387 ?] Orange 0.5 mile E of Borrego Canyon 457 Comment
  UCR166791  Bromus inermis subsp. inermis R. E. Riefner Jr. 2005-10-1 05- 702 Orange City of Costa Mesa, South Coast Drive at Susan Road 16 Comment
  RSA0013861  Bromus madritensis Fred M. Roberts 2012-4-24 7517 Orange San Joaquin Hills: Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  UCR192104  Bromus madritensis A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35306 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  HSC9305  Bromus madritensis subsp. rubens C. L. Hitchcock, C. V. Muhlick 1964-3-17 23060 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  RSA697036  Bromus rigidus Keith E. Hoffmaster 1924-4-15 s.n. Orange Santa Ana Comment
  CAS-BOT-BC161824  Bromus rubens C. L. Hitchcock; C. V. Muhlick 1964-3-17 23060 Orange 8 miles east of Yorba Linda, Santa Ana Canyon. Comment
  RSA737546  Bromus rubens Fred M. Roberts 2008-3-12 6715 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCD59517  Bromus rubens Ira L. Wiggins 1966-3-4 20494 Orange Shoulder of Peralta Ave. near junction of Newport Freeway and Riverside Highway. Comment
  RSA184135  Bromus rubens I. L. Wiggins 1966-3-18 20531 Orange California State College at Fullerton. 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
  UC124604  Cakile edentula A. Davidson, M. D. 1908-5-2 1789 Orange s Newport Bay Newport Bay Comment
  UCR42432  Cakile maritima A. C. Sanders 1986-5-31 6525 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
  RSA657669  Cakile maritima Michael J. Graeser 1988-5-17 44 Orange Huntington Beach. Bolsa Chica Ecological Reserve. Lower end of Outer Bolsa Bay. 100 ft. SE of parking lot at Warner and PCH. Comment
  RSA648659  Calamagrostis koelerioides R. E. Riefner 2000-6-22 20 -572 Orange NCCP North Ranch Policy Plan Area, NE property; along National Forest boundary, at powerline. 756 Comment
  UC907536  Calamagrostis koelerioides Clark H. Gleason 1949-8-5 Orange near Hidden Ranch; Cleveland National Forest, Black Star Canyon Comment
Read comments May 27 2008
  UCR192106  Calandrinia breweri A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35314 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  SD234997  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34576 Orange Peninsular Range: Santa Ana Mountains; saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mile N of (Santiago Reservoir) Irvine Lake (Black Star Canyon7.5' Q) 405 Comment
  UCR192454  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34576 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
  UCR217453  Calandrinia ciliata Mark A. Elvin 2003-1-26 2231 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UCR281515  Calandrinia ciliata Mitch Provance, Jeremiah George 2017-3-20 317- 108 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  SD82810  Calandrinia maritima P. A. Munz 1926-4-15 7088 Orange sea-bluffs, Laguna Beach Comment
  RSA713907  Callistemon citrinus R. E. Riefner Jr. 2005-11-23 5 -773 Orange City of Newport Beach, Upper Newport Bay, E of Jamboree Rd and S of Bayview Way at Bonita Creek channel. 6 Comment
  CDA5114  Callistemon viminalis R. E. Riefner Jr. 2007-3-18 07 -139 Orange City of Newport Beach, north shore of Newport Bay, North Star Beach, general vicinity of North Star Lane and Polaris Drive. Comment
  RSA723962  Callistemon viminalis R. E. Riefner Jr. 2006-11-12 06 -559 Orange City of Newport Beach, Irvine Coast Trail at San Diego Creek, near SR-73 crossing, S of Jamboree Rd. 3 Comment
  POM6460  Calochortus catalinae Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2624 Orange Santa Ana River Canyon. Comment
  RSA0013958  Calochortus catalinae Fred M. Roberts 2008-5-7 6938 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
  RSA0065925  Calochortus catalinae Allison D. Rudalevige 2015-3-25 ADR 11 Orange City of Laguna Beach, between Hobo Canyon and Aliso Creek. 199 Comment
  RSA653190  Calochortus catalinae David Barrios 1991-5-1 14 Orange Yorba Linda: 1500 ft. NW of Fairmount Avenue & Quail Circle. 366 Comment
  RSA749289  Calochortus catalinae Fred M. Roberts 1999-4-2 5167 Orange Lomas de Santiago: ridge between Limestone Cyn. and Santiago Creek wash, 0.7 km W Silverado Sch. and 4.3 km NNW Bolero Lookout. 330 Comment
  RSA749314  Calochortus catalinae Fred M. Roberts 2008-3-25 6791 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
  RSA753423  Calochortus catalinae D. E. Bramlet 2008-5-20 4279 Orange N Loma Ridge, 30m east of the access road, 762m west of Hwy 241 & 1.13km south of Santiago Cyn Road. 344 Comment
  RSA788917  Calochortus catalinae Fred M. Roberts 1999-6-10 5239 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., 1.3 km S Bolero Spring and 2.2 km W Bolero Lookout. 285 Comment
  SD232135  Calochortus catalinae Mark Elvin, Charles Gorenst 1996-3-16 113 Orange Coastal Plains & Basins; south Coastal Plain region: Crystal Cove State Park. 300 m down hill from no brains trail. Comment
  UCR207998  Calochortus catalinae Mark A. Elvin 1995-1 04 Orange Santa Ana Mtns., Starr Ranch, National Audubon Society; west side of Bell Creek, junction of Leslie Love Trail 213 Comment
  UCR31355  Calochortus catalinae L. F. LaPre 1983-4-12 s.n. Orange Peralta Hills c. 0.5 mi south of Anaheim Hills residential development. Comment
  CAS-BOT-BC483374  Calochortus invenustus Le Roy Abrams 1901-6-15 1848 Orange Summit of Santiago Pk. Comment
  SEINET4063239  Calochortus splendens G. Sphon 1959-1 325 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest. Comment
  CAS-BOT-BC492698  Calochortus splendens P. C. Everett 1935-6-18 7199 Orange Santa Ana Mts., Main Divide Motorway; 7 miles from Santiago Peak 1310 Comment
  CAS-BOT-BC492700  Calochortus splendens Gale Sphon 1959-5-2 325 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest Comment
  RSA668158  Calochortus splendens Michael C. Long, Ian Swift 2001-5-10 MCL- 558 Orange Soledad Canyon, N of Soledad Canyon Road at Bee Canyon. 537 Comment
Read comments Jul 15 2019
  RSA0013583  Calochortus weedii var. intermedius D. E. Bramlet 2008-5-22 4281 Orange Bee Cyn. Bowerman landfill site. 375m S of the Bee canyon access road. & 350m W of the active landfill. Comment
  RSA0014068  Calochortus weedii var. intermedius Fred M. Roberts, Richard E. Riefner 2010-5-30 7020 Orange Santiago Canyon Rd. in small canyon below Irvine Mesa, 1.1 km SE Silverado Sch., c.a. 2 km by road SE Silverado Cyn. Rd. junction 337 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
  UC1952586  Calochortus weedii var. intermedius D. Bramlet 1994-6-23 2392 Orange San Joaquin Hills. On ridgeline between Camarillo and Shady Canyons. The site is located 1.5 km west of Laguna Cyn. and 183 m SE of the Shady-Camarillo Cyn. Road junction; Laguna Beach 7.5 USGS Quadrangle 37 18 130m. N x 4 27 850m E. Comment
Read comments Oct 17 2017
  UCR132987  Calochortus weedii var. intermedius Adrian Wolf 2000-6-20 463 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 0.62 km NNW of mouth of Black Star Canyon 305 Comment
  UCR43238  Calochortus weedii var. intermedius Kathy Harper 1986-6-7 s.n. Orange Santa Ana Mtns., Modjeska Canyon Road just below Tucker Wildlife Sanctuary Comment
  RSA542332  Calochortus weedii var. weedii Fred M. Roberts, Kathy Keane 1988-5-25 3999 Orange RANCHO MISSION VIEJO: Lower Canada Gobernadora, c.a. 2.4km SW Cliff Survey Marker. 110 Comment
  RSA542424  Calycadenia tenella Fred M. Roberts 1988-5-13 3967 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  RSA750000  Calycadenia tenella A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35323 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir. 335 Comment
  RSA255489  Calycadenia tenella Gerald D. Carr 1971-7-14 585 Orange 2.5 mi NE of San Juan Capistrano on Hwy 74 69 Comment
  RSA747592  Calystegia macrostegia Fred M. Roberts 2000-5-5 5320 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., north slope, 1.6 kmSSW Bolero Spr. and 2.6 km W Bolero Lookout. 308 Comment
  UCR109765  Calystegia macrostegia R. D. Goeden, Don W. Ricker 1965-6-21 s.n. Orange Dana Point 61 Comment
  CSUSB664  Calystegia macrostegia Dean Jones 1966-4-12 Orange Imperial Highway, about 1.5 miles north of Riverside Freeway [91]. 335 Comment
  CAS-BOT-BC221304  Calystegia macrostegia subsp. intermedia C. B. Wolf 1931-3-6 1865 Orange 2 miles from Orange County Park, on the road to Anaheim 152 Comment
  RSA539401  Calystegia occidentalis subsp. fulcrata Fred M. Roberts, Carol A. Roberts 1988-6-9 4073 Orange Main Divide Truck trail, Modjeska peak, west slope, 0.5 km W summit. 1460 Comment
  RSA697157  Calystegia occidentalis subsp. occidentalis R. H. McArthur 1934-4-14 s.n. Orange Laguna Canyon. Hillside. Comment
  POM201638  Calystegia sepium subsp. limnophila L. M. Booth 1932-7-19 1279 Orange Bolsa Chica Comment
  RSA33847  Calystegia soldanella N. C. Cooper 1944-6-3 1348 Orange Balboa Beach, On beach at sealevel. 0 Comment
  SFV18301  Calystegia soldanella J. Diaz, V. Bendijo, S. L. Diaz, H. Mercurio 2002-5-3 s. n. Orange Newport Beach. Small dunes south of Balboa Road. Comment
  UCR42434  Calystegia soldanella A. C. Sanders 1986-5-31 6527 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
  RSA466970  Camissonia bistorta E. S. Spalding 1923-12-1 s.n. Orange San Juan Capistrano, sea shore Comment
  SEINET7073418  Camissonia bistorta A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UCR190975  Camissonia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35002 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
  CHSC10115  Camissonia cheiranthifolia subsp. suffruticosa J. W. Johnson 1960-8-18 Orange Newport Beach. Beside Newport Bay by Highway 101. Comment
  HSC16447  Camissonia cheiranthifolia subsp. suffruticosa B. Francis 1964-5-2 43 Orange Newport Beach Comment
  POM311863  Camissonia cheiranthifolia subsp. suffruticosa Stephen Cunnison 1962-5-2 8 Orange 1 1/2 miles northwest of Newport Harbor entrance on Balboa peninsula. 3 Comment
  RSA0073650  Camissonia cheiranthifolia subsp. suffruticosa Fred M. Roberts 2010-3-12 7181 Orange Southeast Coast: Dana Point Headlands: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  RSA454022  Camissonia cheiranthifolia subsp. suffruticosa M. B. Dunkle 1933-4-9 3292 Orange Huntington Beach. Comment
Read comments Jan 2 2015
  RSA678741  Camissonia cheiranthifolia subsp. suffruticosa Valerie L. Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1111 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA737479  Camissonia cheiranthifolia subsp. suffruticosa Fred M. Roberts 2008-3-12 6737 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCR151388  Camissonia cheiranthifolia subsp. suffruticosa Valerie Soza, Kevin Clark, , LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1111 Orange Coastal Plains & Basins; Los Angeles Basin region, Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  HSC94213  Camissonia hirtella D. Atwood 1993-3-28 17714 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
Read comments Jul 14 2012
  UCR132890  Camissonia hirtella Adrian Wolf 2000-4-7 453 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Fremont Canyon, 3 km NNE of canyon mouth 408 Comment
  UCR267215  Camissonia micrantha Fred M. Roberts, Lee Ann Caranza 2009-4-7 7143 Orange South Coast Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.5 km WNW Dana Point Marine Institute at Dana Point Harbor, near Interpretive Center 70 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
  UC1618042  Camissoniopsis bistorta Donald G. Nelson 1935-3-23 179 Orange Hills north of Fullerton Comment
  UC1719511  Camissoniopsis cheiranthifolia subsp. cheiranthifolia D. Atwood 1993-3-26 17699 Orange Corona Del Mar State Park along Newport Coast Drive 0 Comment
  CAS-BOT-BC160448  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange Sunset Beach Comment
  CAS-BOT-BC160451  Camissoniopsis cheiranthifolia subsp. suffruticosa William M. Klein 1960-6-14 1457 Orange San Clemente State Park 7 Comment
  CAS-BOT-BC160452  Camissoniopsis cheiranthifolia subsp. suffruticosa C. W. Tilforth 1975-9-3 1039 Orange At north-east shoreline of Upper Bay, Newport Beach Comment
  SDSU3347  Camissoniopsis cheiranthifolia subsp. suffruticosa Peter Raven 1957-9-28 11372 Orange South of Seal Beach Comment
  UC635393  Camissoniopsis cheiranthifolia subsp. suffruticosa H. L. Mason 1926-4-25 2919 Orange five mi s Laguna Comment
  UC942887  Camissoniopsis cheiranthifolia subsp. suffruticosa Lewis S. Rose 1949-4-14 49049 Orange Sunset Beach Comment
  IRVC29088  Capsella bursa-pastoris Fred M. Roberts 1989-3-17 4203 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  POM369330  Cardamine californica var. integrifolia M. B. Dunkle 1933-3-5 3096 Orange San Juan Canyon, Comment
  UC1543082  Cardionema ramosissimum Donald G. Nelson 1935-6-27 324 Orange s. of Corona del Mar (s. of mouth of Newport Bay) Comment
  IRVC17972  Carduus tenuiflorus Karlin G. Marsh 1980-5-5 Orange Rancho Mission Viejo: Planning area; along road way. Southern Coastal Comment
  CAS-BOT-BC17635  Carex alma Helen D. Geis 1902-1-1 503 Orange Near Santa Ana. Comment
  SEINET11629784  Carex amplectens H. D. Geis 1902-1 502 Orange no further locality Comment
  HSC46673  Carex globosa Christopher Davidson 1977-5-18 5621 Orange Santa Ana Mts. Cleveland Nat. Forest. Bear Springs 1220 Comment
  CAS-BOT-BC118506  Carex praegracilis Helen D. Geis 1902-4-1 567 Orange Ditch banks near Santa Ana Comment
  POM1460  Carex praegracilis I. M. Johnston 1918-5-5 1890 Orange El Toro. 76 Comment
  POM193572  Carex praegracilis Helen D. Geis 1902-1 505 Orange Orange County. Comment
  UC971745  Carex praegracilis L. M. Booth 1932-7-1 1234 Orange Anaheim Creek Comment
  UCR193039  Carex praegracilis A. C. Sanders, Fred M. Roberts 2008-6-17 35496 Orange Peninsular Range; Santa Ana Mtns., 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
  SEINET8068417 Image available Carex praegracilis H. D. Geis 1902-1 s.n. Orange Orange County Comment
  SEINET10495943  Carissa macrocarpa Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-7-21 Dziekanowski 2417 Orange Collected around the condominium-Pacific Island Estates in Laguna Beach. Comment
  JEPS42911  Carpobrotus edulis L. M. Booth 1932-8-5 1362 Orange Newport Bay. Comment
  RSA113266  Carpobrotus edulis E. K. Balls 1955-4-4 20422 Orange Coastal Strand, west end of Newport Beach. 3 Comment
  RSA643429  Carthamus baeticus R. D. Goeden, D. W. Ricker 1965-7-7 s.n. Orange Puente Hills: Brea Blvd. at Tonner Cyn Rd. confluence of Brea and Tonner Canyons, NE edge of Brea 146 Comment
  RSA425876  Castilleja affinis Albert J. Perkins 1909-3-1 13722 Orange Orange Co Park. Comment
  UCR191780  Castilleja affinis A. C. Sanders, Fred M. Roberts 2008-3-25 34572 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  RSA0010903  Castilleja affinis Shlomo Gat 1959-5-12 35 Orange Hills in Orange county. Comment
  JEPS24425  Castilleja affinis subsp. affinis Peter M. Ray 1949-5-22 1412 Orange s of San Clemente; San Clemente State Park 15 Comment
  UCD170069  Castilleja affinis subsp. affinis R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49649 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 227 Comment
  CDA41345  Castilleja affinis subsp. affinis Ahlefeld & Pope 1957-4-1 s.n. Orange Irvine Ranch. 0 Comment
  SD247731  Castilleja affinis subsp. affinis R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49649 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] Comment
  RSA543970  Castilleja applegatei subsp. martinii Steve D. Boyd, Orlando Mistretta 1991-5-9 3201 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA0127599  Castilleja exserta Fred M. Roberts 2016-3-25 8029 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
  UC1607987  Castilleja exserta subsp. exserta Donald G. Nelson 1935-3-23 185 Orange hills n Fullerton Comment
  RSA400601  Castilleja foliolosa P. A. Munz, R. D. Harwood 1920-4-24 3745 Orange Sierra [Freemont] Canyon, Santa Ana Mts. 366 Comment
Read comments Sep 25 2011
  RSA705  Castilleja foliolosa J. T. Howell 1928-2-25 848 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  UC1081507  Castilleja foliolosa H. L. Mason 1925-4-25 2904 Orange 5 mi s Laguna Comment
  RSA512755  Castilleja minor subsp. spiralis Walter Wisura, Bart O'Brien, Durant 1990-6-12 4448 Orange Along forest rd. 3SO4 fr. 2.15 miles Ortega Hwy. to Santiago Peak. Comment
  RSA696336  Catalpa hybrida Marjorie Moody 1947-05 s.n. Orange No. Main St., Santa Ana, California. Comment
  RSA542652  Caulanthus heterophyllus Fred M. Roberts 1988-3-15 3857 Orange Rancho Mission Viejo; Verdugo Canyon, 1.3 km SSW Lucan Survey Marker 201 Comment
  UCR103216  Caulanthus heterophyllus Scott D. White 1997-2-19 4695 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  IRVC24790  Caulanthus lasiophyllus Karlin G. Marsh 1989-3-4 Orange Lomas Ridge, ridge between Hicks and Rattlesnake Canyons. Lomas de Santiago 210 Comment
  CAS-BOT-BC48494  Ceanothus crassifolius Marcus E. Jones 1930-3-3 26514 Orange Santa Ana mountains 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
  RSA594804  Ceanothus crassifolius Fred M. Roberts 1992-2-26 4835 Orange Santa Ana Mts. Ridge west of Black Star Canyon and north of confluence of Black Star Canyon and Santiago Canyon, 4.3 km ESE Irvine Lake spillway. 353 Comment
  RSA67770  Ceanothus crassifolius G. R. Campbell 1951-3-30 16093 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west edge of Cleveland National Forest. 152 Comment
  RSA798542  Ceanothus integerrimus Robert F. Thorne, E. W. Lathrop 1977-5-18 49742 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  UCR131677  Ceanothus integerrimus C. B. Wolf 1941-8-15 11155 Orange Santa Ana Mtns., Santiago Peak, north side 0.5 mi. from summit [near Riverside county line] 1677 Comment
  UCR52605  Ceanothus megacarpus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  CAS-BOT-BC83752  Ceanothus megacarpus var. megacarpus D. O. Burge 2008-4-29 989 b Orange Niguel Hill 270 Comment
  RSA542422  Ceanothus megacarpus var. megacarpus Fred M. Roberts 1988-5-12 3963 Orange Anaheim Hills: Upper Deer Canyon, 7.7 km W Sierra Peak. 268 Comment
Read comments Aug 23 2013
  SD247718  Ceanothus oliganthus R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49699 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  LA45131  Ceanothus papillosus W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mountains, Holy Jim Canyon 975 Comment
  RSA698615  Ceanothus spinosus Mabel Harvey s.n. Orange Silverado Canyon Comment
  UC1071388  Ceanothus spinosus A. E. Wieslander 1934-3-29 448 Orange San Juan Creek 304 Comment
  RSA588778  Ceanothus tomentosus subsp. olivaceus Fred M. Roberts 1990-4-13 4559 Orange Upper Maybe Canyon near SkylineDrive 0.2 km NE Oak Flat, 2.7 km SSE Sierra Peak. 841 Comment
  RSA594879  Ceanothus tomentosus var. olivaceus Fred M. Roberts 1992-2-26 4834 Orange Santa Ana Mtns: ridge west of Black Star Canyon and north of confluence of Black Star Canyon and Santiago Canyon, 4.3 km ESE Irvine Lake spillway. 353 Comment
  LA97592  Ceanothus verrucosus D. S. Verity; Fred Lang 1972-1-7 sn Orange hills behind South Laguna Comment
Read comments Nov 26 2016
  RSA46  Cenchrus longispinus J. T. Howell 1927-7-18 435 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  IRVC14319  Centaurea melitensis L. T. McHargue 1970-6-22 Orange UCI campus, Irvine Comment
  RSA735173  Centaurea melitensis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35276 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  RSA752850  Centaurea melitensis Fred M. Roberts 2009-4-21 7154 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  SD152950  Centaurea melitensis Steve Boyd, Tim Ross 1992-5-20 7477 Orange Southern Santa Ana Mountains; western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead. 349 Comment
  CAS-BOT-BC284477  Centaurea solstitialis T. C. Fuller 1962-6-7 8869 Orange N. end of Fullerton Golf Course, Fullerton Comment
  CDA7331  Centaurea solstitialis T. C. Fuller 1962-6-7 8870 Orange Fullerton Golf Course. Fullerton 0 Comment
  CDA7332  Centaurea solstitialis T. C. Fuller 1962-6-7 8869 Orange North end of Fullerton Golf Course. Fullerton 0 Comment
  IRVC19500  Centaurium venustum Gordon A. Marsh 1983-6-9 s.n. Orange Laguna Beach; intermediate ridge between Arch and Portafina canyons. Southern Coastal Comment
  RSA551  Centaurium venustum J. T. Howell 1927-6-2 15 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA710405  Centaurium venustum Fred M. Roberts 2005-10-3 6293 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
  UCR63990  Centranthus ruber S. J. Myers 1989-5-4 s.n. Orange Peninsular Range; Santa Ana Mtns., along stream in Hot Spring Canyon, 1.2 mi north of Ortega Hwy (Hwy 74) Comment
  RSA716092  Centromadia parryi Fred M. Roberts 2006-7-5 6349 Orange Bolsa Chica Ecological Preseve: Bolsa Chica Mesa, 0.8km SSW Chica Survey Marker and 1.4km SE jct. Pacific Coast Hwy. & Warner Ae. 7 Comment
  CAS-BOT-BC288848  Centromadia parryi subsp. australis H. M. Hall 1920-10-4 11222 Orange Cypress Comment
  JEPS20077  Centromadia parryi subsp. australis Peter H. Raven 1957-9-28 11376 Orange N limits of Surfside Comment
  RSA758074  Centromadia parryi subsp. australis D. E. Bramlet 2008-9-17 4306 Orange Upper Newport Bay, West Mesa, 76m E Irvine Ave. & 305m S of University Dr. 20 Comment
  SD134529  Centromadia parryi subsp. australis Craig Reiser 1991-3-19 Orange Newport Beach Bay, W of Delhi Channel Comment
  UCD20136  Centromadia parryi subsp. australis Donald W. Kyhos 1962-9-23 62- 225 Orange Along Pacific Coast Highway and Balboa Drive, about 1 mile south of Los Angeles- Orange County line. 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
  UCR174498  Cercocarpus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33061 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
  RSA5286  Cercocarpus betuloides Carl B. Wolf, B. D. Stark 1932-12-19 s.n. Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  UCR98300  Cercocarpus betuloides Scott D. White 1997-3-28 4827 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  LA31220  Cercocarpus minutiflorus Dave Verity; 1960-2-14 sn Orange near summit of Temple Hills Drive on e slope of ridge, San Juaquin Hills behind Laguna Beach Comment
  SEINET10686161  Cercocarpus minutiflorus Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 5 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 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
  RSA562738  Chaenactis artemisiifolia Steve Boyd 1992-5-20 7454 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09), 305 Comment
  RSA734852  Chaenactis glabriuscula A. C. Sanders, Mitch Provance 2008-5-20 35415 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  UCR93939  Chaenactis glabriuscula B. G. Pitzer 1996-4-30 2805 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA542426  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts 1988-3-15 3872 Orange Rancho Mission Viejo: Central Gabino Canyon, 7km E Playa Survey Marker, 162 Comment
  RSA113264  Chaenactis glabriuscula var. megacephala E. K. Balls 1955-4-4 20424 Orange N of Dana Poit off Hwy 101. 46 Comment
  RSA184133  Chamaesyce albomarginata I. L. Wiggins 1965-11-6 20342 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA70390  Chamaesyce polycarpa var. polycarpa F. W. Peirson 1924-5-31 4663 Orange 5 miles southeast of Laguna Beach. 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
  RSA33593  Cheilanthes clevelandii Norman C. Cooper 1944-6-4 1339 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA685771  Cheilanthes newberryi T. R. Pray 1961-2-14 1825 Orange San Juan Canyon along Ortega Hwy, near bridge just west of Cleveland National Forest Comment
  UCSC001079  Cheilanthes newberryi Peter Kamb 1948-6-19 1092 Orange Cliff in canyon bottom - Santa Ana Mts., Holy Jim Canyon 610 Comment
  RSA184162  Chenopodium album I. L. Wiggins 1966-5-25 20664 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton. Comment
  RSA5506  Chenopodium album C. B. Wolf 1932-6-28 3760 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  SEINET11940524  Chenopodium album J. F. Bright, Wyman, C. 1933-1 8178 Orange Deltoro 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
  RSA712937  Chenopodium ambrosioides Fred M. Roberts 2005-10-3 6302 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
  UCR46566  Chenopodium ambrosioides B. G. Pitzer, D. C. Hawks 1986-10-21 0351 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi east of Santa Ana, in hills N and east of South Coast Gun Club on Jeffrey Road in Hicks Canyon 183 Comment
  RSA423413  Chenopodium ambrosioides L. M. Booth 1932-7-25 1312 Orange Santa Ana River, 1 1/2 miles from ocean. 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
  RSA734850  Chenopodium berlandieri A. C. Sanders, Mitch Provance 2008-5-20 35414 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  RSA788909  Chenopodium berlandieri Fred M. Roberts 2008-6-26 7061 Orange Lomas de Santiago: Loma Ridge along West Loma Ridge Road, c.a. 1 km N Haul Rd., 2.5 km NNW Bee Peak, Irvine Ranch Land Conservancy. 382 Comment
  RSA791869  Chenopodium berlandieri var. sinuatum R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49647 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA262  Chenopodium californicum J. T. Howell 1928-2-25 840 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  UCR209380  Chenopodium californicum Fred M. Roberts, Linda Farley 2008-3-28 7035 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
Read comments Mar 23 2020
  CDA35060  Chenopodium chenopodioides Mark A. Elvin, B. S. Nerhus 2006-11-4 5249 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  RSA48861  Chenopodium macrospermum var. farinosum J. C. Roos 1949-10-1 4681 Orange Doheney Beach. [Now Capistrano Beach] Comment
  RSA594870  Chenopodium macrospermum var. halophilum Fred M. Roberts Jr., W. R. Ferren, D. E. Bramlet 1991-11-29 4825 Orange Irvine: San Joaquin Freshwater Marsh, ca. 1.5 km NW center of U.C. Irvine Campus, ca. 5 km WNW French Hill. 2 Comment
  SD143949  Chenopodium murale Scott D. White 1993-3-5 1120 Orange Marine Corps Air Station, southeast of Red Hill Ave. and northeast of Barranca. 14 Comment
  SEINET7067538 Image available Chenopodium pumilio 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
  CSUSB404  Chlorogalum pomeridianum Cesareo Perez 1971-5-18 Orange South Mesa Drive & Lemon Street, in Villa Park. Comment
  RSA0013863  Chorizanthe procumbens Fred M. Roberts 2012-5-10 7569 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
  RSA588983  Chorizanthe procumbens D. E. Bramlet 1994-6-2 2379 Orange San Joaquin Hills. On ridgeline north of Little Sycamore Canyon. The site is located 244m NE of Little Sycamore Canyon and 488m west of Laguna Cyn. Road. 165 Comment
  UCSB52868  Chorizanthe procumbens Roberts, Fred 1983-4-24 Orange 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School 82 Comment
  POM50441  Chorizanthe staticoides L. R. Abrams 1901-06 1807 Orange Mt. Santiago 915 Comment
  RSA188  Chorizanthe staticoides J. T. Howell 1927-6-8 55 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA587875  Chorizanthe staticoides Fred M. Roberts 1990-5-10 4626 Orange Rancho Mission Viejo: Lower Talega Canyon, TRW Lease Holding, c.a. 4.8km NE Clemente Survey Marker. 122 Comment
  RSA739342  Chorizanthe staticoides Keith E. Hoffmaster 1934-4-22 297 Orange Santa Ana Mountains Comment
  UC1607969  Chorizanthe staticoides Donald G. Nelson 1936-6-5 433 Orange hills n.e. Fullerton 91 Comment
  UC205943  Chorizanthe staticoides D. L. Crawford 1916-5-5 Orange Laguna Beach Comment
  UCR37797  Chorizanthe staticoides 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
  UCD130549  Cirsium arvense P. B. Kennedy 1924-2-13 s.n. Orange Huntington Beach District. Comment
  RSA0066515  Cirsium californicum R. H. McArthur 1934-5-19 s.n. Orange Trabuco Canyon. Comment
  RSA659544  Cirsium occidentale P. Shirokawa 1998-5-7 18 Orange Cleveland National Forest- Trabuco Ranger District, 0.55 miles from Ortega Highway (State Highway 74) on North Main Divide Road 838 Comment
  RSA0059655  Cirsium occidentale R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49655 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  CAS-BOT-BC285735  Cirsium vulgare Ira L. Wiggins 1965-11-3 20311 Orange East side of California State College at Fullerton campus, near Placentia Avenue, Fullerton Comment
  IRVC22223  Cirsium vulgare H. Camp 1985-8-15 6 Orange Bell Canyon, 2.1km NNW Visitor Center, Casper's Regional Park 126 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
  UCR73109  Cirsium vulgare Scott D. White 1992-9-23 855 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
  CAS-BOT-BC172421  Clarkia bottae C. L. Hitchcock 1928-5-5 49 Orange Mouth of Santa Ana Canyon 150 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
  UC373523  Clarkia bottae C. L. Hitchcock 1928-5-5 49 Orange mouth Santa Ana Canyon 150 Comment
  RSA688833  Clarkia epilobioides Scott D. White, Amanda Duchardt 2003-4-10 9004 Orange Santa Ana Mtn Foothills. San Juan creek channel. Just N of Ortega Hwy and a few miles E of San Juan Capistrano. 61 Comment
  RSA16420  Clarkia purpurea subsp. quadrivulnera Percy C. Everett 1935-5-19 6872 Orange Santa Ana Mountains, Baker Canyon, West Ladd Truck trail. 305 Comment
  RSA637490  Clarkia purpurea subsp. quadrivulnera Valerie L. Soza, LeRoy Gross 1999-6-8 507 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  UCR220083  Claytonia parviflora Dick Newell, Don Millar 2010-3-2 005 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Canyon Rd. 50 m SE of Sandtrap cutoff, 0.2 mi. west of Santiago Canyon Rd. 294 Comment
  UCR218458  Claytonia perfoliata subsp. mexicana Robert DeRuff 2008-1 563 Orange South Coast, Upper Newport Bay, below intersection of Back Bay Dr. and East Bluff Dr. 12 Comment
  RSA16489  Clematis lasiantha Percy C. Everett 1935-6-18 7218 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  UC1178495  Clematis lasiantha Peter Kamb 1948-6-19 1106 a Orange Santa Ana Mts., Holy Jim Canyon 609 Comment
  SD247714  Clematis lasiantha R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49689 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  LA207182  Clematis ligusticifolia Jwaiser; 1952-3-10 sn Orange San Juan Capistrano 457 Comment
  UC537273  Clematis ligusticifolia Lawrence M. Booth 1932-7-21 1290 Orange Anaheim Marsh Comment
  RSA0061168  Clematis ligusticifolia Robt. Allen 2007-8-11 s.n. Orange Santa Ana Mountains region: Silverado Canyon, Maple Springs Road. 791 Comment
  UCSB29143  Clematis pauciflora Copp, Joseph 1962-3-9 Orange Calif. 74; 13.7 rd. mi. northeast of US 101 Comment
  POM183958  Cleome isomeris P. A. Munz 1932-3-29 12188 Orange Costa Mesa. Comment
  RSA607432  Cleome isomeris L. C. Wheeler 1932-6-25 868 Orange Newport Bay. 3 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
  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
  RSA21803  Cnicus benedictus E. R. Johnson 1937-5-28 8767 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA58740  Cnicus benedictus E. R. Johnson 1950-6-4 14893 Orange Rancho Santa Ana, Santa Ana River Canyon Comment
  RSA0117316  Collinsia parviflora Robert Allen, Fred M. Roberts, Chris M. Barnhill 2003-4-26 12364 Orange Santa Ana Mountains, San Juan Canyon, San Juan Loop Trail near Upper San Juan Campground. 523 Comment
  SD134460  Comarostaphylis diversifolia subsp. diversifolia Craig Reiser 1992-6-12 Orange Laguna Niguel, west-facing slope, NE corner of intersection of Crown Valley Parkway and Pacific Island Drive Comment
  IRVC22479  Conium maculatum Fred M. Roberts 1985-4-24 1655 Orange Laguna Beach; Laguna Canyon on Laguna Canyon Rd., 0.7km N jct. El Toro Rd. Southern Coastal 76 Comment
  SEINET8584808 Image available Conium maculatum T. C. Arambula 1966-1 53 Orange Brea, Carbon Canyon Rd Comment
  RSA357138  Conium maculatum R. F. Thorne 1975-4-6 45575 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA521  Conium maculatum J. T. Howell 1927-7-19 447 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  IRVC973  Convolvulus arvensis A. Weir 1965-5-9 Orange Mar Vista, east bluff. Newport Beach Comment
  RSA573293  Convolvulus arvensis Steve Boyd, Timothy S. Ross, Bob Boyd 1994-9-14 8350 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Lucas Canyon. 317 Comment
  CSUSB645  Convolvulus arvensis Kenneth Hibberd 1966-5-8 660508 4 Orange Frontage Road, one mile north of El Toro Road along Highway 101, Santa Ana Freeway. 121 Comment
  IRVC29834  Convolvulus simulans Tom McCrainie, Mark A. Elvin 2006-9-23 8 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
  RSA93224  Conyza bonariensis F. W. Peirson 1924-8-29 5063 Orange Santa Ana Comment
  IRVC25164  Conyza canadensis Fred M. Roberts 1986-9-3 3141 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA348137  Conyza canadensis I. L. Wiggins 1965-10-24 20286 Orange At corner of Yorba Linda and State College Blvds., Fullerton. Comment
  RSA749046  Conyza canadensis A. C. Sanders, Fred M. Roberts 2008-8-7 36008 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
Read comments Dec 21 2010
  CAS-BOT-BC286162  Conyza canadensis Ira L. Wiggins 1965-11-6 20341 Orange Kraemer Oil Estates, near Well No. 14, near end of county road leading to Rancho Santa Ana (extension of Orangethorpe Blvd.) Comment
  RSA412318  Cordylanthus maritimus subsp. maritimus L. M. Booth 1932-7-1 1233 Orange Newport Bay Comment
  UC1532993  Cordylanthus maritimus subsp. maritimus Robert F. Thorne 1975-4-6 45586 Orange head Newport Bay Comment
  UCR193831  Cordylanthus rigidus A. C. Sanders, Fred M. Roberts 2008-7-16 35826 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  JEPS6777  Cordylanthus rigidus subsp. setiger John Thomas Howell 1927-6-26 2599 Orange Claymine Canyon Santa Ana Mts 365 Comment
  CAS-BOT-BC101294  Corethrogyne filaginifolia John Thomas Howell 1927-9-24 3106 Orange on n. s. of Santa Ana [Canon] Canyon 152 Comment
  POM18125  Corethrogyne filaginifolia P. A. Munz 1923-9-7 7739 Orange Santiago Peak in Santa Ana Mountains. 1706 Comment
  POM201779  Corethrogyne filaginifolia L. M. Booth 1932-7-29 1332 Orange Newport Bay Comment
  RSA703091  Corethrogyne filaginifolia var. virgata Fred M. Roberts, Arthur Davenport 2003-9-11 6004 Orange Rancho Mission Viejo: Donna O' Neill Land Conservancy. Cristianitos Cyn., 0.79 km N Sycamore Gate 0.23 km w of Crisianitos Road. 126 Comment
  UCR224157  Corethrogyne filaginifolia var. virgata Fred M. Roberts 2008-7-10 7072 Orange South Coast, Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8 km west norhwest of Marine Institute, Dana Point Harbor 45 Comment
  POM201926  Cornus californica L. M. Booth 1932-7-19 1278 Orange Bolsas Marsh. Comment
  UC1719426  Coronopus didymus D. Atwood 1993-3-26 17688 Orange Corona Del Mar State Park along Newport Coast Drive 0 Comment
  UCR106307  Coronopus didymus B. G. Pitzer, M. Georgiady 1997-4-5 3097 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
  IRVC24483  Cortaderia selloana Fred M. Roberts, G. A. Marsh 1986-2-28 2603 Orange Lateral to English Canyon along Vista Del Lago; 3.4km ENE El Toro Fire Station, in ravine at base of north-facing slope. Mission Viejo 236 Comment
  UCD59799  Cortaderia selloana A. C. Sanders 1990-10-6 10196 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2 km inland of Hwy. 1. 1 Comment
  RSA679093  Cosmos bipinnatus Fred M. Roberts 2003-7-24 5966 Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  JEPS37132  Cotula australis L. M. Booth 1932-5-24 1094 Orange Newport Bay Comment
  UCSB52470  Cotula australis Roberts, Fred 1983-3-10 Orange Dana Point Headlands; cliff above Dana Point Harbor, south of old Cove Rd.; 0.8 km. S Richard Henry Dana School 60 Comment
Read comments Jan 25 2020
  SD108922  Cotula coronopifolia Thomas Eakle 1971-5-28 148 Orange 2 miles northeast of Newport at Newport Bay Saltmarsh. Comment
  CAS-BOT-BC427772  Crassula connata Ira L. Wiggins 1966-2-12 20429 Orange N. side of La Palma Ave. near Harbor Blvd., Anaheim. Comment
  IRVC18551  Crassula connata A. B. McGee 1981-3-28 Orange [UCI] Ecological Preserve. Irvine Comment
  UCR103791  Crassula connata Scott D. White 1997-2-19 4700 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR5169  Crassula connata Barbara T. Gittins, O. F. Clarke 1966-3-19 890 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  UCSB47623  Crassula connata Roberts, Fred 1980-4-3 Orange Hills; 1.0 km. NE Dana Hills High School, Dana Point 75 Comment
  RSA542643  Crassula connata var. erectoides Fred M. Roberts, Dar A. Roberts 1989-3-22 4219 Orange Aliso-Wood Canyons Regional Park: Wood Canyon, 3.6 km S Moulton Peak. 43 Comment
  RSA542645  Cressa truxillensis Fred M. Roberts, Kathy Keane, Carol A. Roberts 1988-5-25 4580 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.4 kilometers SSE Medium Rancho Survey Mark. 69 Comment
  RSA609048  Cressa truxillensis L. C. Wheeler 1932-6-25 864 Orange Newport Bay Comment
  RSA700002  Croton californicus Minor Warne 1934-3-10 s.n. Orange Limestone Canyon Comment
  RSA785322  Croton californicus Dick Newell, Don Millar 2010-4-27 027 Orange Lomas de Santiago, Limestone Ridge Rd. at junction of Markel Spur Rd., overlooking The Sinks 427 Comment
  UCD141986  Croton californicus G. L. Webster 1966-12-11 7480 Orange Dana Point. 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
  UCR123430  Crypsis schoenoides G. James 1968-10-1 s.n. Orange Huntington Beach, near Beach Boulevard and Adams Boulevard. Comment
  RSA797354B  Cryptantha D. M. McF 1956-4-11 7 Orange Moulton Ranch, South Coast. 152 Comment
  UCR222384  Cryptantha Mark A. Elvin 2003-1-26 2247 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 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
  POM49204  Cryptantha clevelandii var. florosa L. R. Abrams 1901-6-15 1821 Orange Santiago Peak trail. Comment
  UCSB52918  Cryptantha clevelandii var. florosa Roberts, Jr., Fred 1983-3-10 Orange Dana Point Headlands: south of Scenic Dr., 0.3 km. W Dana Point Harbor; 0.8 km. S Richard Henry Dana School 60 Comment
  RSA678721  Cryptantha intermedia Fred M. Roberts, Robert Allen, Carol Roberts 2003-5-11 s.n. Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  RSA450853  Cryptantha microstachys Gordon Marsh 1978-3-17 s.n. Orange U.C. Irvine Ecological Preserve. 85 Comment
  RSA542659  Cryptantha microstachys Fred M. Roberts, K. Keane 1988-5-26 4005 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  RSA550608  Cryptantha microstachys Fred M. Roberts, Carol A. Roberts 1989-4-20 4305 Orange Santa Ana Mtns: Upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5km SE Los Pinos Peak. 980 Comment
  UCR209382  Cryptantha microstachys Fred M. Roberts, Linda Farley 2008-3-28 6825 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
  IRVC17035  Cryptantha muricata var. muricata L. McCabe 1965-4-24 Orange Ortega Hwy. Santa Ana Mountains Comment
  RSA0079591  Cryptantha muricata var. muricata J. T. Howell 1928-2-25 846 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  JEPS39796  Cupressus forbesii John Thomas Howell 1927-8-10 2983 a Orange Claymire Canyon Santa Ana Mts., Sierra Peak, Claymire Canyon 609 Comment
  RSA12376  Cupressus forbesii C. B. Wolf, E. R. Johnson 1934-3-21 5578 Orange Santa Ana River, Santa Ana Canyon, 1/2 mi. S.W. of Mexican Houses, Rancho Santa Ana. Altitude 400 ft. 122 Comment
  RSA648650  Cupressus forbesii Richard E. Riefner 2000-8-3 20 -707 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge cypress forest. 534 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
  SEINET10531440  Cupressus goveniana David B. Dunn 1971-8-13 Dunn 18110 Orange Cultivated plants at Costa Mesa, California. Comment
  CAS-BOT-BC224408  Cuscuta californica John Thomas Howell 1927-6-3 2420 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  POM18140  Cuscuta californica P. A. Munz 1923-9-7 7759 Orange Trail Trabuco Canyon to Santago Peak 915 Comment
  RSA562766  Cuscuta californica Steve Boyd, Timothy S. Ross 1992-5-19 7420 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
  RSA690978  Cuscuta californica Scott D. White, Michael Honer 2003-5-29 9432 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. Steep, gen. south-facing slopes above trib. to Trampas Canyon, ca. 0.6 air mi. S of Ortega hwy and ca. ca. 0.5 mi west of Trampas Cyn. 122 Comment
  UC284233  Cuscuta californica P. A. Munz 1923-7-8 7330 Orange Santa Ana River Comment
  RSA797476  Cuscuta ceanothi R. F. Thorne 1977-11-21 49989 Orange Santa Ana Mountains: San Juan Canyon about 2 miles above San Juan Fire Station Comment
  RSA708819  Cuscuta pentagona Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6170 Orange Bolsa Chica Salt Marsh: along Pacific Coast Highway, trail NW of parking area, c.a. 2.2km SE jct. Warner Street and 1.6km SE Chica Bench Mark. 2 Comment
Read comments Jan 2 2017
  RSA201912  Cuscuta salina L. M. Booth 1933-10 s.n. Orange Newport Comment
  SD28112  Cuscuta salina Carl B. Wolf 1932-7-7 3844 Orange Bryant Ranch, Bixby Ave. 6/10 mi. west of Hansen Rd. Comment
  RSA750002  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35320 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR193783  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-7-3 35679 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA759535  Cuscuta subinclusa Robt. Allen 2006-12-13 s.n. Orange Trabuco Canyon. About 2 mi. up from Live Oak Road, SW of Trabuco Truck Trail, in creekbed near base of north-facing hillside 395 Comment
  RSA528056  Cycloloma atriplicifolium A. C. Sanders 1990-10-6 10203 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  SD51889  Cycloloma atriplicifolium Peter H. Raven 1961-10-15 16848 Orange Santa Ana River bed at Anaheim Street crossing, Anaheim. 60 Comment
  RSA609757  Cycloloma atriplicifolium L. C. Wheeler 1946-9-28 6377 Orange Newport Bay: Near point where main coast highway crosses.. . 2 Comment
  JEPS66891  Cylindropuntia prolifera L. M. Booth 1933-10-24 Orange Newport Comment
  RSA703684  Cynara cardunculus subsp. flavescens Fred M. Roberts, David E. Bramlet 2004-11-5 6125 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., along creek, 0.73km N Sycamore Gate and 0.10 km W Cristianitos Road. 122 Comment
  RSA797404  Cynara cardunculus subsp. flavescens Keith E. Hoffmaster 1933-10-8 s.n. Orange Near Newport Bay. Comment
  CDA23574  Cynodon dactylon L. D. Lyons, Mark A. Elvin 2006-9-23 422 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
  RSA603290  Cynosurus echinatus Tony Bomkamp, R. E. Riefner 1997-6-18 97 -202 Orange Hidden Valley Ranch, Black Star Canyon, Santa Ana Mountins 671 Comment
  UCR157711  Cyperus Adrian Wolf 1998-5-15 270 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  RSA542339  Cyperus difformis J. West 1990-9-4 s.n. Orange Irvine: University of California campus. 16 Comment
  UCR193032  Cyperus eragrostis A. C. Sanders, Mitch Provance 2008-5-20 35400 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
  CHSC116492  Cyperus eragrostis R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49572 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA365080  Cyperus erythrorhizos Anstruther Davidson 1917-08 3267 Orange Near Laguna Beach. Comment
  CAS-BOT-BC114318  Cyperus esculentus LeRoy Abrams 1901-6-1 1758 Orange Santa Ana River. Comment
  RSA697521  Cyperus esculentus Minor Warne 1934-5-13 s.n. Orange Talbert Drainage. Comment
  RSA725528  Cyperus esculentus Fred M. Roberts 2007-9-11 6573 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  POM210903  Cyperus esculentus L. M. Booth 1932-7-25 1310 Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  CAS-BOT-BC114242  Cyperus laevigatus J. Ewan 1931-10-3 5197 Orange Choking stream bed below La Vida Soda Springs, Carbon Canyon. Comment
  POM187598  Cyperus laevigatus Joseph A. Ewan 1931-10-3 5197 Orange Below La Vida Soda Springs [now La Vida Mineral Springs], Carbon Canyon. Comment
  CAS-BOT-BC537198  Cyperus niger R. F. Thorne 1977-11-21 49999 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UCR179773  Cyperus odoratus R. E. Riefner Jr. 2005-10-27 05- 728 Orange South Coast, Huntington Beach, Huntington Central Park near Goldenwest St. 1 Comment
  CAS-BOT-BC538088  Cyrtomium falcatum R. E. Riefner, Jr. 2012-2-2 12 -19 Orange City of Dana Point, cliff and rocky intertidal area N 0.2 mi of Salt Creek lagoon 8 Comment
  RSA785389  Cyrtomium falcatum R. E. Riefner 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 Ave. 2 Comment
  RSA539378  Dactylis glomerata Fred M. Roberts 1988-6-9 4080 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  RSA295240  Dactyloctenium aegyptium E. Wegener 1970-8-11 LASCA- 948 Orange Near Costa Mesa. Comment
  RSA647957  Datura wrightii Mark Breidenbaugh, Caralisa Breidenbaush 1992-5-1 15 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  RSA650635  Datura wrightii Daniel Truong 1991-5-5 1 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  RSA651331  Datura wrightii Candye Koehler 1981-4-11 81 -4 Orange Carbon Canyon Rd. #142 3.3mi. W. of Sleepy Hollow. 244 Comment
  RSA542444  Daucus pusillus Fred M. Roberts, Kathy Keane 1988-5-26 4004 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  CHSC26108  Deinandra fasciculata James Henrickson 1970-7-24 5001 Orange 3 miles NW of Huntington Beach near sandy 'Rabbit' Island in Bolsa Chica Salt Marsh near Inner Bolsa Bay. Roadside. 0 Comment
  RSA657681  Deinandra fasciculata Michael J. Graeser 1988-5-8 29 Orange Orange. Santiago Canyon Road. 1 mile north of Chapman Ave. Across from Holy Sepulcher Cemetary. Comment
  CAS-BOT-BC413810  Deinandra paniculata R. E. Riefner, Jr. 2014-7-5 14 -215 Orange City of San Clemente, San Clemente State Beach, SSW ca. 100 m from the intersection of Ave. Calafia and South Ola Vista Rd. 40 Comment
  SD247322  Deinandra paniculata R. E. Jr. Riefner 2008-5-19 08 100 Orange Ladera Ranch, Cecil Pasture at Jerome Road; along Bluff Top Trail. 156 Comment
  UCR267218  Deinandra paniculata Fred M. Roberts 2014-7-25 7893 Orange South Coastal Plain, SAN JOAQUIN HILLS: Laguna Canyon, just west of Laguna Lake 1, 4.8 km ENE Signal Hill, Laguna Coast Wilderness Park 116 Comment
  RSA649081  Delphinium Karl Price 1988-5-7 35 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
  UCSB50633  Delphinium cardinale Roberts, Fred 1982-7-9 Orange Santa Ana Mtns; c.a. 2.3km by road W Hwy 74 on forestry road; 2.5km WSW El Cariso Guard Station 925 Comment
  RSA698564  Delphinium parryi Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA679218  Delphinium parryi subsp. parryi Fred M. Roberts 2003-6-17 5915 Orange Just NE of Falcon roup Camp, 2.1km ESWE Los Pinos Peak just west of main road. 1009 Comment
  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
  CAS-BOT-BC82948  Dendromecon rigida P. C. Everett 1935-6-19 7233 Orange Santa Ana Mountains, Main Divide Motorway 7 miles from summit Santiago Peak (Southeast). 1280 Comment
  RSA652150  Dendromecon rigida J. Bruce Smiley 1940-4-28 s.n. Orange Santa Ana Canyon (mouth). 701 Comment
Read comments Nov 6 2013
  RSA785384  Dendromecon rigida Keith E. Hoffmaster 1932-4-17 401 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  RSA5311  Dendromecon rigida subsp. rigida B. D. Stark 1933-1-5 4506 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  SD247680  Dendromecon rigida subsp. rigida R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49702 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA723969  Deschampsia danthonioides R. E. Riefner 1998-5-15 98 -328 Orange San Clemente State Beach, mima mound field in SW corner of park. 27 Comment
  UCR282155  Deschampsia danthonioides R. E. Riefner Jr. 2014-5-17 14- 127 Orange South Coast, city of Huntington Beach, east of Beach Blvd. and north of Adams Ave, along Coldwater Lane vicinity of Kingsdale Dr., Batlett Park 1 Comment
  UCR211966  Descurainia pinnata Dick Newell, Don Millar 2010-2-23 001 Orange South Coast, Serrano Ridge, 3 mi west of Laguna Hills, 0.67 mi west of Languna Canyon Road, east of Shady Canyon 244 Comment
  HSC22053  Dichelostemma capitatum subsp. capitatum S. M. Clapp 1966-4-7 21 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  RSA367485  Dichelostemma capitatum subsp. capitatum M. B. Dunkle 1933-4-9 s.n. Orange Dana Point Comment
  RSA165174  Dichelostemma capitatum subsp. capitatum Mark Parratt 1962-4-11 140 Orange Beach head at Corona del Mar, Santa Ana Mt. Range Comment
  SEINET6879160  Dichelostemma congestum Wanda P. Vestal, A. G. Vestal 1955-3-24 s.n. Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  UCR188994  Digitaria ischaemum Fred M. Roberts 2007-10-29 6622 Orange South Coast, Niguel Hill, Laguna Niguel. Seaview Park, 1.3 km ENE of Aliso Peak 265 Comment
  CAS-BOT-BC209074  Digitaria sanguinalis Ira L. Wiggins 1965-10-2 20268 Orange Curbway, at corner of Longview Dr. and Dorothy Lane, Fullerton Comment
  POM202523  Digitaria sanguinalis L. M. Booth 1932-6-7 1210 Orange Balboa Island. Comment
  RSA184181  Digitaria sanguinalis I. L. Wiggins 1965-9-25 20252 Orange Fullerton. Comment
  RSA0019263  Dimorphotheca ecklonis R. E. Riefner 2000-3-14 20 -136 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N from Baker Cyn.Road. 304 Comment
  RSA0013965  Dimorphotheca sinuata Fred M. Roberts 2008-4-22 6924 Orange Lomas de Santiago: Loma Ridge, Upper Hicks Cyn., along Haul Road, 0.8 km WNW Bee Peak and 3.2 km E Rattlesnake Resservoir dam. 302 Comment
  CAS-BOT-BC152263  Diplacus clevelandii E. K. Balls 1958-6-27 23279 Orange Road to Santiago Peak from Silverado Canyon, 3.8 mi. from gate. 975 Comment
  CAS-BOT-BC150283  Diplacus longiflorus B. Pitzer 1996-4-30 2801 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (=Pacific Coast Hwy.) 15 Comment
  CAS-BOT-BC152060  Diplacus longiflorus H. E. McMinn 1949-7-9 5598 Orange Ca. 2 miles east of San Juan Capistrano, San Juan Pass, Highway 74 Comment
  RSA0045518  Diplacus longiflorus Kenneth Beard 1934-04 s.n. Orange Mts. along Ortega Highway; north of San Juan Hot Springs. CP5. Comment
  RSA0045519  Diplacus puniceus Minor Warne 1934-3-3 s.n. Orange Laguna Canyon Forks. CP5. Comment
  CAS-BOT-BC43551  Diplotaxis muralis Peter H. Raven 1962-3-27 16992 Orange Site of Rancho Santa Ana, near Anaheim. 182 Comment
  CDA3684  Diplotaxis muralis Margaret Bellue, E. L. Paddock, Andreas 1943-8-3 Orange Santa Ana Botanical Garden, Fullerton. 0 Comment
  UC856048  Diplotaxis tenuifolia I. M. Johnston 1918-5-4 1927 Orange Santa Ana Comment
  CDA24808  Diplotaxis tenuifolia R. K. Bishop Nov 1937 Orange 12 miles northwest of Orange on railroad right-of-way. 0 Comment
  POM123  Diplotaxis tenuifolia I. M. Johnston 1918-5-4 1927 Orange Santa Ana, at roadside. Comment
  POM21171  Diplotaxis tenuifolia Helen D. Geis 1902-12-12 s.n. Orange Santa Ana. Comment
  RSA678747  Distichlis littoralis Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1102 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  RSA701645  Drymocallis glandulosa Keith E. Hoffmaster 1934-4-22 s.n. Orange Santa Ana Mountains Comment
  RSA701654  Drymocallis glandulosa Keith E. Hoffmaster 1935-5-5 s.n. Orange San Juan Canyon., Santa Ana Mts. Comment
  IRVC20515  Dryopteris arguta Fred M. Roberts 1983-9-26 1120 Orange Lion Canyon, Chiquito Basin Trail, 3.3km NNE Lower San Juan Picnic Ground; 4.3km SSE Los Pinos Peak. Santa Ana Mountains 810 Comment
  RSA124716  Dryopteris arguta E. K. Balls, Percy C. Everett 1957-11-25 22839 Orange Upper Trabuco Canyon, 2.9 mi. ne. from entrance to Holy Jim canyon, 1097 Comment
  RSA301978  Dryopteris arguta J. R. Shevock 1970-12-20 570 Orange Silverado Canyon 579 Comment
  RSA617694  Dryopteris arguta Scott D. White 1996-12-20 4631 Orange Santa Ana Mountains: Above Modjeska Canyon. 427 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
  UCSB48105  Dryopteris arguta Fritzke, S.; Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: San Juan Canyon, 2.4km ENE San Juan Guard Station; 0.3km WSW Bench Mark 1100. 88 Comment
  RSA603292  Duchesnea indica R. E. Riefner 1997-7-18 97 -239 Orange Near Fullerton Nature Park. Comment
  POM48528  Dudleya blochmaniae F. M. Reed 1925-5-7 4960 Orange Bluff near Saltcreek Beach. 15 Comment
Read comments Dec 7 2014
  UCR159830  Dudleya cymosa Valerie Soza, LeRoy Gross 1999-6-10 517 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
Read comments Jun 15 2013
  CAS-BOT-BC428265  Dudleya edulis Cecil Hart 1928-5-27 s.n. Orange Laguna Beach Comment
  SD207014  Dudleya edulis Reid Moran 1949-7-9 3258 Orange Aliso Canyon Comment
  UC2059977  Dudleya edulis K. Nakai 1978-7-17 391 Orange Aliso Canon, ca. 200 yards from California Highway 1. Comment
  UC2059992  Dudleya edulis K. Nakai 1978-4-19 360 Orange Aliso Canyon, ca 200 yards from Highway 1. Comment
  CAS-BOT-BC411408  Dudleya lanceolata E. W. Lathrop 1974-6-27 7423 Orange 5 miles E of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l. Forest 396 Comment
  POM201797  Dudleya lanceolata L. M. Booth 1932-6-9 s.n. Orange Newport Bay Comment
  RSA170990  Dudleya lanceolata R. F. Thorne 1963-7-26 s.n. Orange Near Beek's Spring; Tin Mine Canyon; Trabuco District, Santa Ana Mountains, Cleveland National Forest. 716 Comment
Read comments Apr 25 2011
  UC933289  Dudleya lanceolata Reid Moran 1948-6-23 3094 Orange s side Aliso Canyon; Laguna Beach Comment
  RSA584715  Dudleya lanceolata Fred M. Roberts 1989-5-18 4371 Orange Santa Ana Mountains: Upper Gypsum canyon, above ridge road, ca. 6.4 km WSW Sierra Peak. 415 Comment
  RSA562764  Dudleya multicaulis Steve Boyd, Timothy S. Ross 1992-5-19 7418 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
  RSA594811  Dudleya multicaulis Fred M. Roberts, Edna Rey, Kay Stockwell 1993-5-6 4880 Orange El Modena: Lomita Ave, ca. 0.4 km by road E Santiago Blvd., 0.4 km W Bauer Survey Marker. 122 Comment
  UC338337  Dudleya multicaulis unknown Orange Newport Bay Comment
  RSA176277  Dudleya pulverulenta R. F. Thorne 1963-7-26 32845 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mts. Cleveland Natl Forest. Comment
  UCSB50638  Dudleya pulverulenta Roberts, Fred 1982-7-8 Orange Niguel Hills; Niguel Hill, above Pacific Island Road, 1.4 km. ESE Aliso Peak; 2.6 km. SSW Alicia Fire Station 205 Comment
  RSA0062957  Dudleya pulverulenta subsp. pulverulenta Fred M. Roberts 2008-7-10 7076 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCR224165  Dudleya pulverulenta subsp. pulverulenta Fred M. Roberts 2008-7-10 7076 Orange South Coast, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west-northwest of Marine Institute, Dana Point Harbor 65 Comment
  SBBG96432  Dudleya stolonifera R. Moran 1977-6-13 24230 Orange Willow Cyn, tributary of Laguna Cyn 125 Comment
  IRVC28635  Dudleya viscida Mark A. Elvin 2005-9-2 4490 Orange Santa Ana Mtns: along San Juan Creek, ca. 1.0km upstream from San Juan Hot Springs; off Ortega Hwy (74), near bridge. Peninsular Ranges 259 Comment
  IRVC26741  Dudleya viscida Mark A. Elvin 2004-6-18 3520 Orange UCI Arboretum Southern Coastal 15 Comment
  UCSB52395  Dysphania multifida Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach; Upper Newport Back Bay, Back Bay Dr., 3.5 km. N San Joaquin Hills Rd.; 3.0 km. W UC Irvine campus 2 Comment
  CAS-BOT-BC197030  Echinochloa colona Ira L. Wiggins 1965-10-24 20295 Orange On S side of Yorba Linda Blvd. 1/4 mi. E of State College Blvd., Fullerton Comment
  CAS-BOT-BC197178  Echinochloa crus-galli John Thomas Howell 1928-10-29 3188 Orange Along the highway near Cypress 30 Comment
  RSA21041  Echinochloa crus-galli E. R. Johnson 1938-8-22 9451 Orange Rancho Santa Ana, Santa Ana Canyon; South of Picnic Grounds 122 Comment
  UC1543182  Echinochloa crus-galli Donald G. Nelson 1935-6-28 341 Orange W. Orange thorpe Ave. sw Fullerton Comment
  UC537283  Echinochloa crus-galli Lawrence M. Booth 1932-7-25 1314 Orange Santa Ana River Channel 2 mi from Ocean; Santa Ana River Channel Comment
  UC729935  Echinochloa crus-galli Carl B. Wolf 1932-6-13 3720 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  CAS-BOT-BC445608  Echinodorus berteroi I. M. Johnston 1918-9-3 2151 Orange Laguna Canon [Canyon], San Joaquin Hills 106 Comment
  UCR66983  Echinodorus berteroi D. E. Bramlet 1990-10-17 2063 Orange Delhi Channel at the intersection of Irvine Ave. & Mesa Drive, just west of Newport Beach Golf Course 6 Comment
  SD156762  Ehrharta calycina Unknown 1940-4-19 Orange San Clemente Comment
  RSA708812  Elatine brachysperma Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6165 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
  RSA86  Eleocharis geniculata J. T. Howell 1927-7-18 422 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR174181  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33048 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA746529  Eleusine coracana subsp. africana R. E. Riefner Jr. 2008-12-23 8 -382 Orange City of Lake Forest, along Alton Pkwy, at Barranca Rd. 80 Comment
  RSA697745  Ellisia chrysanthemifolia Minor Warne 1934-03 s.n. Orange Laguna Canyon Comment
  RSA108342  Elymus X gouldii Frank W. Gould 1943-4-17 2100 Orange Railroad siding 7 miles northeast of Amahim. Comment
  POM1331  Elymus multisetus Le Roy Abrams 1901-06 1823 Orange Santiago Peak Trail 915 Comment
  RSA548858  Elymus multisetus Fred M. Roberts, Gordon Marsh 1986-6-6 2986 Orange Black Star Canyon, Black Star Canyon Rd., 2.7 km by road below summit; 3.6 km S Sierra Peak., UTM 3741900m N, 439600mE. 646 Comment
  UCR2375  Elymus triticoides F. M. Reed 1932-5-24 7234 Orange South Coast, San Juan Capistrano, behind beach dune Comment
  RSA552942  Emmenanthe penduliflora Fred M. Roberts, Carol A. Roberts 1989-4-20 4299 Orange Santa Ana Mtns.: upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5km SE Los Pinos Peak. 980 Comment
  RSA594897  Emmenanthe penduliflora Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4910 Orange Santa Ana Mtns: San Juan Canyon, south side of California, route 74, 1.7kim WSW lower San Juan Picnic Ground. 354 Comment
  UCR192079  Emmenanthe penduliflora A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35280 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  CAS-BOT-BC131229  Encelia californica John Thomas Howell 1927-6-1 2406 Orange Southern Puente Hills in the Santa Ana [Canon] Canyon 152 Comment
  IRVC28776  Encelia californica Archie F. Iskaq 2006-2-4 1 Orange San Joaquin Marsh; NW Edge of Marsh. Southern Coastal 3 Comment
  LA202459  Encelia californica Lawrence M. Booth; 1932-5-12 1029 Orange Newport Bay Comment
  POM202371  Encelia californica L. M. Booth 1932-5-12 1029 Orange Newport Bay. Comment
  POM294120  Encelia californica Lyman Benson 1946-4-27 12058 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  POM4950  Encelia californica P. A. Munz 1918-5-4 2225 Orange Laguna Beach Comment
  UC450971  Encelia californica Fay A. Macfadden 1931-3-1 2928 Orange Laguna Beach Comment
  UC536898  Encelia californica Lawrence M. Booth 1932-5-12 1029 Orange Newport Bay Comment
  UCR140798  Encelia californica Robin G. Marushia 2004-5-4 014 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  RSA637499  Epilobium canum Valerie L. Soza, LeRoy Gross 1999-6-10 516 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off Main Divide Road. 1524 Comment
  UCR197698  Epilobium canum A. C. Sanders, Fred M. Roberts 2008-9-18 36084 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  IRVC8766  Epilobium canum subsp. canum Charles W. Sexton 1965-2-12 s.n. Orange Newport Beach. Southern Coastal 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
  UCR175445  Epipactis gigantea Mark A. Elvin, A. C. Sanders 2005-9-2 4495 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 Comment
  UC1543089  Equisetum arvense Donald G. Nelson 1935-4-6 265 Orange e San Juan Capistrano (canyon 200-300 ft below main hwy. ca. 4 mi from summit); Santa Ana Mts., San Juan Canyon Comment
  CAS-BOT-BC57385  Equisetum laevigatum Crawford; Johnston 1917-6-9 1216 Orange Santa Ana River near Corona Comment
  IRVC21385  Equisetum laevigatum A. S. Boughey 1968-7-9 406 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UCD62942  Eragrostis cilianensis Beecher Crampton 1971-6-9 8723 Orange UC South Coast Field Station, east of Irvine. Comment
  UCR69742  Eragrostis pectinacea var. pectinacea Tim Hartz 1990-11-19 s.n. Orange Irvine U.C. South Coast Field Station, near the U.C. Irvine Campus. Comment
  JEPS69115  Eriastrum sapphirinum John Thomas Howell 1927-6-9 2471 Orange Santa Ana Canyon Rancho Santa Ana 213 Comment
  UC908507  Eriastrum sapphirinum John Thomas Howell 1927-6-9 2471 Orange Santa Ana Canyon Rancho Santa Ana 213 Comment
  UCR193057  Eriastrum sapphirinum A. C. Sanders, Fred M. Roberts 2008-6-17 35505 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA0121309  Eriastrum sapphirinum subsp. dasyanthum A. S. Boughey, P. Pembrook 1965-6-15 1049 Orange Santa Ana Mountains: Maple Springs, below Modjeska Peak, Cleveland National Forest. Comment
  RSA0122940  Eriastrum sapphirinum subsp. dasyanthum D. E. Bramlet 2008-6-3 4286 Orange Upper Borrego Cyn, 136m SE of the access road and 1.5km west of Santiago Cyn Road 433 Comment
  CAS-BOT-BC514997  Eriastrum sapphirinum subsp. dasyanthum L. R. Abrams 1901-6-1 1791 Orange Trabuco Canyon Comment
  RSA0121308  Eriastrum sapphirinum subsp. dasyanthum Anstruther Davidson 1920-06 s.n. Orange Laguna. Comment
  UCD131585  Ericameria P. B. Kennedy 1925-1-12 10 Orange Irvine Ranch. Comment
  RSA264442  Ericameria brachylepis C. W. Tilforth 1976-10-21 1227 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana. Comment
Read comments Mar 18 2011
  RSA0054858  Ericameria palmeri Keith E. Hoffmaster 1933-10-15 100 Orange Santa Ana mts. Comment
  CAS-BOT-BC299500  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2944 Orange Rancho Santa Ana, Santa Ana Canyon 207 Comment
  RSA0126613  Ericameria palmeri var. pachylepis Fred M. Roberts 2012-4-27 7537 Orange Lomas de Santiago: Loma Ridge, west of SR 241, tributary to Las Flores Cyn., near East Loma Ridge Road, 1.9 km SW Irvine Lake Park Campground & 1.2 km ESE Orange Co. Emergency Operations Center (Hill 1311). 350 Comment
  RSA16676  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA38491  Ericameria parishii Percy C. Everett 1945-11-13 11512 Orange Indian Canyon Truck Trail, Indian Canyon, Santa Ana Mts. 960 Comment
  RSA5305  Ericameria parishii B. D. Stark 1933-1-5 4498 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  UCR247539  Ericameria parishii Dick Newell, Judy Booth 2013-10-6 340 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, North Main Divide Road at junction with Long Canyon Road 1032 Comment
  UCR80036  Erigeron canadensis Scott D. White 1992-9-29 863 Orange Vicinity of City of Brea, immediately north of Carbon Canyon Road and east of Placentia Avenue, +- 1 mi (airline) SSE of Tonner Canyon 183 Comment
  SDSU3943  Erigeron foliosus D. F. Howe 1976-6-4 4905 Orange Trabuco Canyon, Santa Ana Mts. 305 Comment
  UCR237810  Erigeron foliosus Dick Newell, Don Millar 2012-6-5 268 Orange Peninsular Range; Santa Ana Mtns., Loma Ridge East, 0.35 mi. due east of Hicks Haul Rd. 411 Comment
  RSA0025300  Erigeron karvinskianus R. E. Riefner Jr. 2013-1-16 13 -15 Orange City of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach. 7 Comment
  RSA696818  Erigeron philadelphicus Anonymous s.n. Orange Moist Shade-Orange Co. Park. Comment
  CAS-BOT-BC189070  Eriodictyon crassifolium H. M. Hall 1913-5-28 9402 Orange Santiago Canon [Canyon] Comment
  UCSB47628  Eriodictyon crassifolium Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns.; Main Divide Truck Trail, 1.1 km. SE Blue Jay Campground; 2.6 km. WSW El Cariso Guard Station 902 Comment
  IRVC27014  Eriogonum cinereum Peter A. Bowler 2003-4-20 s.n. Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC27012  Eriogonum elongatum Peter A. Bowler 2003-4-20 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  RSA7477  Eriogonum elongatum Carl B. Wolf 1933-8-24 5401 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  UCR193828  Eriogonum elongatum A. C. Sanders, Fred M. Roberts 2008-7-16 35829 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  UCR261706  Eriogonum elongatum Dick Newell, Don Millar 2014-9-14 385 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Limestone Canyon Rd., 100 yards north of Bolero Cyn. Rd./Loma Ridge Rd. 393 Comment
  IRVC28779  Eriogonum fasciculatum Caroline Tran 2006-2-4 1 Orange San Joaquin Marsh; NW bluff edge Southern Coastal 5 Comment
  RSA393516  Eriogonum fasciculatum M. B. Dunkle 1933-4-9 3271 Orange Dana Point. Comment
  RSA669571  Eriogonum fasciculatum D. B. Boatman 1969-3-16 690316 -6 Orange 1/2 mile E crossroads Newport Blvd. and Skyline Dr. Tustin. 91 Comment
  UCR222389  Eriogonum fasciculatum Mark A. Elvin 2003-1-26 2243 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UCR217455  Eriogonum fasciculatum subsp. foliolosum Mark A. Elvin 2003-1-26 2228 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UCR250868  Eriogonum fasciculatum subsp. polifolium Dick Newell, Judy Booth 2014-4-27 365 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Road 0.8 mi. ENE of lower gate 632 Comment
  RSA737540  Eriogonum fasciculatum var. fasciculatum Fred M. Roberts 2008-3-12 6721 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  CAS-BOT-BC249944  Eriogonum fasciculatum var. foliolosum John Thomas Howell 1927-7-24 2835 Orange Santa Ana Canyon 152 Comment
  HSC17271  Eriogonum fasciculatum var. foliolosum C. L. Hitchcock, C. V. Muhlick 1964-3-17 23062 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  RSA393427  Eriogonum fasciculatum var. foliolosum M. B. Dunkle 1933-3-5 3094 Orange San Juan Canyon 305 Comment
  UCR131886  Eriogonum fasciculatum var. foliolosum J. Mallory, V. McCoy 1995-7-3 6454- 69 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  CLARK-A1528-3648  Eriogonum giganteum John C. Roos, Lucille Roos 1950-9-25 4992 Orange Santa Ana Canyon Comment
  UC537258  Eriogonum gracile L. M. Booth 1933-8-26 1386 Orange Newport Lagoon Comment
  CAS-BOT-BC253480  Eriogonum gracile Cecil Hart 1923-6-17 s.n. Orange San Gabriel River Comment
  RSA0061164  Eriogonum nudum subsp. pauciflorum Robt. Allen 2007-8-11 s.n. Orange NW-facing slope of Santiago Peak, along Main Divide Road. 1701 Comment
  RSA759257  Eriogonum nudum subsp. pauciflorum Robt. Allen, D. Taylor 2008-7-19 s.n. Orange Upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs forest gate, 0.8 road mi down from junction with Main Divide Truck Trail. Near entrance tp short road spur 1313 Comment
  RSA528048  Eriogonum parvifolium A. C. Sanders 1990-10-6 10179 Orange Newport Bay, Westcliff Park area on the SW end of the bay, 1km inland of Hwy 1. 1 Comment
  RSA716664  Eriogonum parvifolium Fred M. Roberts 2004-7-10 6073 Orange Laguna Beach: Crescent Bay, at base of Twin Points. 3 Comment
  CAS-BOT-BC297328  Eriophyllum confertiflorum John Thomas Howell 1927-6-1 2402 Orange Southern Puente Hills at the Santa Ana Canon 152 Comment
  HSC5622  Eriophyllum confertiflorum S. M. Clapp 1966-4-7 45 Orange 3 mi. from Modjeska Canyon towards Siverado Canyon 183 Comment
  UCR106286  Eriophyllum confertiflorum B. G. Pitzer, M. Georgiady 1997-4-5 3073 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  UCR241905  Eriophyllum confertiflorum Fred M. Roberts 2012-4-24 7523 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
  UCR252207  Eriophyllum confertiflorum Amanda C. Swanson 2013-4-21 23 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  UC536892  Eriophyllum confertiflorum var. confertiflorum Lawrence M. Booth 1932-5-12 1042 Orange Newport Bay Comment
  RSA748805  Erodium botrys G. Gust, L. Nye 2005-3-12 566 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  RSA687523  Erodium cicutarium Fred M. Roberts, D. E. Bramlet 2003-3-27 5622 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Chistianitos Cyn., 0.79km N Sycamore Gate, 0.23km W Chistianitos Rd. 122 Comment
  HSC7249  Erodium moschatum C. L. Hitchcock 1966-3-15 24138 Orange 1/2 mi. E of Brea Comment
  RSA684304  Erodium moschatum Fred M. Roberts, David E. Bramlet 2003-3-13 5602 Orange Donna O Neill Land Conservancy: Flagpole Meadow, upper Shady Cyn. W of Cristianitos Canyon, 1,500m NW Sycamore Gate and 1,220m W Cristianitos Rd. 173 Comment
  UCR193823  Erodium moschatum A. C. Sanders, Fred M. Roberts 2008-7-16 35868 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UCR210363  Erythrina T. B. Salvato, Billy Deane 2006-10-16 1926 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  UC1608074  Eucalyptus amplifolia Dave Goodward 1987-4-16 5 Orange e. Tustin (1 mi. n.e. of Irvine Blvd./Myford Rd. intersection, Boy Scout Camp in Peters Canyon, Irvine Ranch, s. of tree 4 by 3 trees); Irvine Ranch, Peters Canyon, Boy Scout Camp 121 Comment
  RSA0010839  Eucalyptus camaldulensis var. camaldulensis A. C. Sanders, T. B. Salvato 2008-5-13 35370 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA0010852  Eucalyptus camaldulensis var. obtusa D. Goodward 1987-4-16 6 Orange Irvine Ranch, E of Tustin and ca. 1 mile NE of the Irvine Blvd/Myford Rd. intersection in Peters Canyon. 122 Comment
  UCR198527  Eucalyptus erythrocorys R. E. Riefner Jr. 2007-9-27 07- 414 Orange South Coast, city of Laguna Niguel, along Forbes Road near Crown Valley Parkway, west of Hwy I-5 Comment
  UCR50904  Eucalyptus tereticornis Dave Goodward 1987-4-16 4 Orange Irvine Ranch, Boy Scout Camp in Peters Canyon, east of Tustin and c. 1 mi NE of the Irvine Blvd/Myford Road intersection 122 Comment
  CDA23092  Eucalyptus utilis Mark A. Elvin, D. G. Kelch 2006-12-9 5305 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  SD175835  Eucalyptus utilis D. G. Kelch 2006-12-9 06 538 Orange Along Newport Back Bay Dr. in side canyon 6 Comment
  RSA598962  Eucrypta chrysanthemifolia Scott D. White 1997-3-28 4834 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  JEPS1720  Eucrypta chrysanthemifolia var. chrysanthemifolia L. M. Booth 1932-5-19 1063 Orange Newport Bay Comment
  RSA708445  Euphorbia albomarginata Mark Elvin 2004-5-2 3248 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  RSA788900  Euphorbia albomarginata Fred M. Roberts 2008-6-12 7040 Orange Lomas de Santiago: Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  RSA697587  Euphorbia maculata J. Vlahos 1933-10-15 s.n. Orange Parking along BentonWay. Santa Ana. Comment
  CAS-BOT-BC202545  Euphorbia misella Joseph Andorfer Ewan 1932-7-28 7708 Orange Corona del Mar Comment
Read comments Oct 29 2020
  OBI82199  Euphorbia misera Unknown 2012-10-16 12 -518 Orange City of Dana Point, Dana Point Harbor, 'Bluff Top Trail' located near Camino Capistrano and Violet Latern Streets. 35 Comment
  RSA0038515  Euphorbia misera R. E. Riefner Jr. 2012-10-16 12 -518 Orange city of Dana Point, Dana Point Harbor, 'Bluff Top Trail' located near Camino Capistrano and Violet Lantern Streets 35 Comment
  RSA432  Euphorbia misera J. T. Howell 1928-6-24 992 Orange Between Laguna and Capistrano Beaches Comment
  RSA5354  Euphorbia misera B. D. Stark 1932-12-9 4425 Orange Dana Point Comment
  SD211597  Euphorbia misera R. E. Riefner Jr. 2008-3-24 08 62 Orange City of Dana Point, Dana Point Harbor, along Dana Point Harbor Drive at Island Way. USGS 7.5' Quad: West Basin, Dana Point 11 Comment
  SD237416  Euphorbia misera T. B. Salvato 2010-9-27 5106 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Re., beyond the end of Green Lantern St., overlooking Dana Point Harbor. 52 Comment
  UCR240164  Euphorbia misera R. E. Riefner Jr. 2012-12-5 12- 587 Orange South Coast, city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road 9 Comment
  UCR55556  Euphorbia misera G. L. Webster 1966-12-11 7479 Orange South Coast, Dana Point Comment
  RSA716774  Euphorbia peplus Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6065 Orange Santa Ana Mtns: Holy Jim Cyn.: Holy Jim Trail, 3.5km SE summit of Santiago Peak. 610 Comment
  RSA0126620  Euphorbia polycarpa var. polycarpa Fred M. Roberts 2012-4-24 7514 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
  UCR154276  Euphorbia serpens Mark A. Elvin 2004-5-2 3428 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR102037  Euphorbia serpillifolia subsp. hirtula B. G. Pitzer 1997-3-25 3028 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  RSA184138  Euphorbia supina I. L. Wiggins 1965-7-11 20355 Orange Flower bed at southeast corner of Letters and Sciences Building, California State College at Fullerton campus, Fullerton. Comment
  RSA392120  Eustoma exaltatum Theodore Payne 1925-08 s.n. Orange 9 miles E of Florentia, Santa Ana river. Comment
  UCR194561  Festuca A. C. Sanders 2008-4-29 35133 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  CLARK-A1528-4649  Festuca californica John C. Roos 1930-5-20 3237 Orange Capistrano Beach Comment
  CAS-BOT-BC474740  Ficus carica R. E. Riefner, Jr. 2015-8-29 15 -370 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco 363 Comment
  IRVC28201  Ficus carica A. C. Sanders, Mark A. Elvin 2005-9-2 31606 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Cyn, along trail in the switchbacks. Santa Ana Mountains 970 Comment
  UCR158955  Ficus carica A. C. Sanders, Mark A. Elvin 2005-9-2 31606 Orange Santa Ana Mtns., Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail on the canyon bottom beyond the end of the road and above the last of the cabins 610 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-BC474734  Ficus microcarpa R. E. Riefner, Jr. 2015-8-27 15 -355 Orange City of Laguna Beach, S side of Beach St. E of Broadway Ave. (Hwy. 133) 7 Comment
  CAS-BOT-BC487555  Ficus microcarpa R. E. Riefner, Jr. 2014-8-8 14 -273 Orange City of Laguna Beach, E side of South Coast Hwy near Diamond Street 25 Comment
  CAS-BOT-BC500431  Ficus microcarpa R. E. Riefner, Jr. 2014-7-13 14 -222 Orange City of Irvine, S side of Red Hill Ave. bridge, E of 405 Freeway N-bound lane 31 Comment
  CAS-BOT-BC500432  Ficus microcarpa R. E. Riefner, Jr. 2015-7-18 15 -198 Orange City of Costa Mesa, Anton Blvd. on ramp to 405 Freeway, ca 0.3 mi from intersection of Bristol St. at Sunflower Ave. 11 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
  RSA0088635  Ficus microcarpa R. E. Riefner Jr. 2014-6-21 14 -186 Orange City of Laguna Beach, N side of North Coast Highway near intersection with Cliff Dr. 10 Comment
  RSA0088637  Ficus microcarpa R. E. Riefner Jr. 2015-8-27 15 -359 Orange City of Newport Beach, Corona del Mar, on Marguerite Ave. between Fifth Ave. and Fourth Ave. 41 Comment
  RSA0116289  Ficus microcarpa R. E. Riefner Jr. 2014-7-13 14 -222 Orange City of Irvine, S side of Red Hill Ave. bridge E of 405 Freeway north-bound lane. 31 Comment
  RSA649064  Filago arizonica D. E. Bramlet 2000-4-17 2986 Orange West of Blind Cyn. and North of Irvine Park. The site is 1.9 km west of Blind Canyon and 366m north of Irvine Park. This locality is 31m southwest of the MWD access road. 268 Comment
  IRVC22037  Filago californica Fred M. Roberts 1983-5-4 1028 Orange Temple Hill, Upper Rancho Laguna Canyon, 1.7km SSW Top of the World Sch.; 1.4km ENE Cactus Point, Laguna Beach 200 Comment
  UCR209353  Filago californica Fred M. Roberts 2008-4-8 6851 Orange Lomas de Santiago, Loma Ridge, Upper Dripping Springs Cnyn, 1.0 km northeast of Bee Peak, Irvine Ranch Conservancy 458 Comment
  UCR238211  Filago californica Mark A. Elvin 2003-3-30 2390 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA0057937  Filago californica Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49668 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA0104827  Filago californica J. B. Anderson 1966-4-9 526 Orange San Joaquin Hills: On road between Lindoln School-Signal Peak on near level hilltop. 182 Comment
  RSA542429  Filago gallica Bill O'Connell 1991-5-31 5 Orange San Joaquin Hills: Pelican Hill, west side 190 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
  RSA746043  Foeniculum vulgare Alyssa J. Lai 2006-2-4 1 Orange Southern Coastal: San Joaquin Marsh; NW edge of marsh 3 Comment
  LA207703  Frangula californica W. E. Pequegnat; August 1937 sn Orange Santa Ana Mountains, Santiago Peak 1706 Comment
  CAS-BOT-BC53335  Frangula californica subsp. cuspidata Carl B. Wolf 1933-8-24 5391 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  CAS-BOT-BC53336  Frangula californica subsp. cuspidata P. C. Everett 1935-6-18 7217 Orange Santa Ana Mts., Summit of Santiago Pk. 1731 Comment
  RSA5859  Frankenia grandifolia Carl B. Wolf 1932-6-28 3784 Orange Edge of field on Bryant Ave. 9 Comment
  RSA697030  Frankenia grandifolia Keith E. Hoffmaster 1927-6-13 s.n. Orange Near Santa Ana. Comment
  CAS-BOT-BC223804  Frankenia salina Joseph Andorfer Ewan 1932-7-28 7701 Orange Corona del Mar Comment
  CDA22546  Frankenia salina P. Fishman, H. R. Williams 1969-9-23 980 Orange Upper Newport Bay, below East Park (Bluff?) 0 Comment
  IRVC24106  Frankenia salina Fred M. Roberts 1985-9-6 2220 Orange Laguna Beach; Sycamore Hills along Laguna Cyn Rd; N of jct with El Toro Road. Southern Coastal 75 Comment
  SBBG47290  Frankenia salina R. N. Philbrick 1973-8-21 Orange just E of University of California, Irvine Comment
  UCR158094  Frankenia salina Adrian Wolf 1998-5-27 328 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  CAS-BOT-BC217643  Fraxinus dipetala Munz; Street; Williams 1919-5-3 2667 Orange Santa Ana River Canyon Comment
  RSA113855  Fraxinus dipetala E. K. Balls 1956-3-26 21464 Orange 0.5 miles below Silverado Motorway, W slope of Santa Ana Mts. 640 Comment
  RSA12722  Fraxinus dipetala Carl B. Wolf 1934-9-21 6139 Orange Silverado canyon, 1/2 mile below Silverado Motorway, W slope of Santa Ana Mts. 640 Comment
  RSA1456  Fraxinus dipetala E. R. Johnson 1929-4-11 1257 Orange Sierra Peak Trail. 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
  CDA23146  Fraxinus uhdei Mark A. Elvin, D. G. Kelch 2006-12-9 5304 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  CDA23578  Fraxinus uhdei T. McCrainie, Mark A. Elvin 2006-9-23 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
  CDA9409  Fraxinus uhdei D. G. Kelch 2006-12-9 6 .569 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA304144  Fremontodendron californicum James R. Shevock 1970-3-25 67 Orange Cleveland Nat. Forest. 518 Comment
Read comments Oct 28 2014
  SEINET10492275  Fuchsia hybrida David B. Dunn 1971-8-13 Dunn 18111 Orange Cultivated plants at costa mesa. 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
  RSA758894  Galium angustifolium A. C. Sanders, Fred M. Roberts 2008-4-22 35005 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 213 Comment
  SD143727  Galium angustifolium Scott D. White 1997-3-28 4850 Orange Santa Ana Mts; above Modjeska Canyon: Proposed water tank site 424 Comment
  SEINET269587  Galium angustifolium O. F. Clarke 1994-6-17 Orange Laguna Canyon. Comment
  UCR247904  Galium angustifolium Fred M. Roberts 2013-6-12 7790 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  UCSB48003  Galium angustifolium Roberts, Fred 1980-6-29 Orange Santa Ana Mtns., Viejo Canyon, 0.4km N Calif. Rte 74; 2.2km ENE San Juan Guard Station 341 Comment
Read comments Oct 28 2018
  JEPS56089  Galium angustifolium subsp. angustifolium Lauramay T. Dempster and G. L. Stebbins 1967-3-21 4352 Orange canyon on road to Modjeska's Home 1 mi nw Cook's Corner Comment
  SBBG47439  Galium angustifolium subsp. angustifolium N. C. Cooper 1944-6-4 1372 Orange San Juan Cyn 304 Comment
  RSA367701  Galium angustifolium subsp. angustifolium E. Crow 1929-4-7 323 Orange Hidden Canyon, W. of Corona. Comment
  POM367761  Galium aparine Albert J. Perkins 1923-4-27 s.n. Orange Trabuco Canyon. Comment
  RSA780824  Galium aparine Sandy Leatherman 2011-5-2 2011 -13 Orange Peninsular Ranges; Chino-Puente Hills region; along a trail 65 meters north of the water tanks at the terminus of Olinda Road in Carbon Canyon in the City of Brea 413 Comment
  IRVC1379  Garrya A. S. Boughey 1965-3-16 59 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  CHSC39254  Garrya flavescens M. O. Dillon 1977-4-12 Orange Santa Ana Mts., Silverado Canyon. Comment
  UC1080593  Garrya flavescens E. K. Balls and P. C. Everett 1957-11-25 22847 Orange 1.1 mi e Silverado 883 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
Read comments Apr 27 2020
  RSA53  Gastridium phleoides J. T. Howell 1927-6-17 163 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR191247  Gastridium ventricosum A. C. Sanders 2008-4-29 35131 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR194863  Gastridium ventricosum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35321 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  CDA5232  Gaura sinuata E. Dudley Aug 1939 Orange 0 Comment
  RSA610227  Gazania linearis Fred M. Roberts Jr., Tony Bonkamp 1997-3-19 4988 Orange RANCHO MISSION VIEJO: Canada Gobernadora, east slope, 2km. SSE Median Rancho Survey Mark, 1.8 km N Calif. Rte.74. 104 Comment
  RSA685935  Geranium dissectum Fred M. Roberts, D. E. Bramlet 2003-3-27 5619 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, west slopes of Chistianitos Cyn., 0.69km N Sycamore Gate, 0.96km W Chistianitos Rd. 122 Comment
  RSA797023  Geranium incanum var. multifidum R. E. Riefner Jr. 2011-7-1 11 -78 Orange City of Laguna Beach, South Crescent Bay, vicinity of Circle Drive and Island Way. 5 Comment
  RSA797025  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-16 12 -404 Orange City of Dana Point, Dana Point Harbor Drive at Island Way. 11 Comment
  POM10159  Gilia angelensis P. A. Munz, R. D. Harwood 1920-4-24 3766 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  UCR192456  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34574 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
  UCR192503  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34550 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR219853  Gilia angelensis Fred M. Roberts 1999-4-26 5199 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Cyn and the wash, 1.4 km SE Silverado School, 2.7 km north Bolero Lookout 358 Comment
  RSA552949  Githopsis diffusa subsp. candida Fred M. Roberts 1989-4-20 4293 Orange Santa Ana Mtns.: upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5km SE Los Pinos Peak. 980 Comment
  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
  RSA39114  Gladiolus italicus E. L. Paddock 1947-4-19 12289 Orange Walnut grove in Santa Ana (north side of Manchester, half way between Flower and Main Streets also on east 17th St., 0.3 mile east of Grand) Comment
  UCR241903  Glebionis coronaria Fred M. Roberts 2012-4-24 7521 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  IRVC16624  Glycyrrhiza lepidota Gordon A. Marsh, K. G. Marsh 1979-5-28 Orange Horseshoe Bend, Weir Canyon Ranch, Santa Ana Valley Irrigation Co.; along irrigation ditch. Santa Ana River Comment
  RSA785635  Gnaphalium beneolens Doris Bowers 1970-10-26 1708 Orange Black Star Can. Indian site 610 Comment
  POM358935  Gnaphalium californicum E. A. McGregor 1964-6-4 s.n. Orange On Highway 74, between Elsinor and San Juan Capistrano. 914 Comment
  RSA688869  Gnaphalium californicum Fred M. Roberts 2003-5-1 5671 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
  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
  RSA749042  Gnaphalium canescens subsp. microcephalum A. C. Sanders, Fred M. Roberts 2008-8-7 35971 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  POM4593  Gnaphalium chilense P. A. Munz 1918-5-4 2185 Orange Laguna 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
  RSA704430  Gnaphalium leucocephalum Fred M. Roberts, David E. Bramlet 2004-7-30 6087 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
  POM12445  Gnaphalium palustre P. A. Munz 1922-9-2 6355 Orange Ponds in Laguna Canyon 46 Comment
  POM4622  Gnaphalium palustre P. A. Munz 1918-5-4 2209 Orange Laguna Canyon. Comment
  CLARK-A1528-1859  Gnaphalium peregrinum John C. Roos 1965-6-16 Orange Dana Point Comment
  RSA0022441  Gnaphalium ramosissimum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49774 Orange Santa Ana Mountains: Trabuco Canyon Comment
  IRVC29561  Gnaphalium stramineum Mark A. Elvin, P. A. Bowler 2006-5-13 4861 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  IRVC9357  Gnaphalium stramineum B. T. Gittins 1963-5-29 239 Orange Orange State College. Fullerton Comment
  RSA698230  Godetia bottae Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  RSA698232  Godetia bottae Kenneth Beard 1934-05 s.n. Orange Ladd Canyon. Comment
Read comments Oct 31 2011
  RSA698236  Godetia purpurea Kenneth Beard s.n. Orange East of Irvine Park. Comment
  RSA800021  Grindelia camporum Justin M. Wood 2011-6-28 4305 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  SD28098  Grindelia camporum Carl B. Wolf 1932-7-2 3810 Orange Opposite Olinda Pilgrim Church. Comment
  UCR52299  Grindelia camporum B. G. Pitzer, D. C. Hawks 1986-12-17 0382 A Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Santiago Cyn Rd., c. 1.0 mi SW of [Irvine Lake] Santiago Reservoir 305 Comment
  RSA234515  Grindelia camporum var. bracteosa James Henrickson 1970-7-24 4962 Orange 1.5 miles NW of Huntington Beach, along border of Bolsa Chica Salt Marsh at SW end of Huntington Beach Mesa. 8 Comment
  UCR228768  Grindelia camporum var. bracteosa Dick Newell, Don Millar 2011-7-19 204 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon Rd. at junction to Dripping Springs 312 Comment
  CAS-BOT-BC305206  Grindelia hirsutula Carl B. Wolf 1932-7-2 3810 Orange Olinda. Valencia Ave., opposite Olinda Pilgrim Church 152 Comment
  UC897086  Grindelia hirsutula Julian A. Steyermark 1933-10-29 Orange San Clemente, Orange Co., on clay soil of coastal mesa. Comment
  RSA17135  Guillenia lasiophylla E. R. Johnson 1936-4-27 7776 Orange Rancho Santa Ana, Santa Ana cayon, in Canyon W of Tennis court, Botanic Garden. 168 Comment
  CAS-BOT-BC314526  Gutierrezia californica Helen D. Geis 1902-1-1 s.n. Orange Santiago Creek Comment
Read comments Dec 8 2018
  UCR192102  Gutierrezia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35288 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  LA203632  Gutierrezia sarothrae John Thomas Howell; 1927-7-22 2816 Orange Santa Ana Canyon Comment
  RSA403563  Hainardia cylindrica L. C. Wheeler 1932-6-25 851 Orange 1/2 mile N Newport Bay. 15 Comment
  RSA581660  Hainardia cylindrica Tony Bomkamp 1995-06 s.n. Orange Gabino Canyon, near confluence with Cristianitos Canyon. (San Clemente USGS 7.5' quadrangle) Comment
  UCR26139  Haplopappus menziesii John C. Roos 1949-10-1 4683 Orange South Coast, Doheny Beach 0 Comment
  LA202463  Haplopappus palmeri subsp. pachylepis Lawrence M. Booth; 8853 Orange Newport Beach Comment
  UC1118833  Hazardia squarrosa var. grindelioides A. Lewis 1934-4-1 430 Orange Los Pinos Peak Cleveland National Forest, Elsinore Quad., Los Pinos Peak 1219 Comment
  UCR218455  Hedera canariensis Robert DeRuff 2008-1 134 Orange South Coast, Upper Newport Bay, between Mariner's Drive and North Star Beach 6 Comment
  UCR26998  Hedera helix E. W. Lathrop 1966-5-13 6297 Orange Santa Ana Mountains, 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  SD42290  Hedypnois cretica C. B. Wolf 1938-5-2 9406 Orange Fullerton, Francis Street, 1200 block, east side in vacant lot 60 Comment
  OBI16349  Hedypnois rhagadioloides Carl B. Wolf 1938-5-2 9406 Orange City of Fullerton, Francis St, 1200 Block E side in vacant lot 61 Comment
  RSA725583  Helianthemum scoparium Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6530 Orange dirt road along ridge between Black Star and Fremont Canyons, 4.4km ENE Irvine Lake spillway and 2.4km WSW Hidden Ranch. 662 Comment
  RSA0027782  Helianthemum scoparium var. aldersonii R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49679 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] 457 Comment
  UCR193063  Helianthus annuus A. C. Sanders, Fred M. Roberts 2008-5-6 35217 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UC774875  Helianthus ciliaris E. L. Paddock 1941-8-1 Orange 2 mi e Brea; Graham-Loftus property Comment
  CAS-BOT-BC305655  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, n. of El Toro, ca. 11 mi. s.e. of Tustin Comment
  OBI4714  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, N of El Toro, ca 11 mi SE of Tustin Comment
  SEINET13387984 Image available Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Abundant on hillside in grain, Veeh Ranch, N. of El Toro, CA. 11 mi. SE of Tustin Comment
  RSA7440  Helianthus gracilentus C. B. Wolf 1933-8-24 5388 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  UCR193414  Helianthus gracilentus A. C. Sanders, Fred M. Roberts 2008-6-17 35513 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR220028  Heliotropium curassavicum Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  CAS-BOT-BC305897  Helminthotheca echioides W. P. Sanders 1969-7-11 4 Orange Costa Mesa Comment
  RSA360335  Hemizonia australis L. C. Wheeler 1932-6-25 849 Orange 5 miles west of Santa Ana. 22 Comment
  RSA581662  Hemizonia australis Tony Bomkamp 1995-06 s.n. Orange Rancho Mission Viejo, floodplain of Canada Gobernadora W of Casper Regional Park. 140 Comment
  IRVC14670  Hemizonia fasciculata A. S. Boughey 1968-7-16 424 Orange road to Signal Peak. San Joaquin Hills Comment
  IRVC17976  Hemizonia fasciculata K. Marsh 1980-5-8 Orange Pelican Point. Crystal Cove State Park Comment
  POM360262  Hemizonia fasciculata F. R. Fosberg 1930-7-10 455 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  POM56177  Hemizonia fasciculata H. M. Hall 1906-6-19 7411 Orange Gypsum, Santa Ana Canyon 122 Comment
Read comments Sep 4 2011
  UCR239888  Hemizonia fasciculata O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  UCR38084  Hemizonia fasciculata G. Sampson 1985-4-23 85 362 Orange Chino Hills State Park, W end of Telegraph Canyon Comment
  UCR157704  Hemizonia parryi subsp. australis Adrian Wolf 1998-5-27 326 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
  RSA0001299  Hemizonia parryi subsp. australis D. D. Keck 1933-9-29 2537 Orange Seal beach. Comment
  POM202122  Hesperocnide tenella Philip A. Munz 1934-3-26 13134 Orange Newport Beach, Orange. 6 Comment
  CAS-BOT-BC143749  Heteromeles arbutifolia E. A. Zumbro 1902-1-1 365 Orange unspecified Comment
  RSA0072402  Heteromeles arbutifolia Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6505 Orange Beek's Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  RSA0072404  Heteromeles arbutifolia Fred M. Roberts, Robert L. Allen 2004-1-16 6020 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.15 km W of Cristianitos Rd. 92 Comment
  SD254087  Heteromeles arbutifolia Jim Riley 2013-10-31 131 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  UC860401  Heteromeles arbutifolia C. B. Wolf and B. D. Stark 1932-12-19 4430 A Orange 1/2 mi from Skyline Drive on Firebreak Road to Sierra Peak (Santa Ana Mountains); , Firebreak Road 762 Comment
  UCR192076  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35277 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR222879  Heteromeles arbutifolia T. B. Salvato 2010-10-27 5123 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  JEPS20382  Heterotheca grandiflora L. M. Booth 1932-5-25 1112 Orange Balboa Island Newport Bay, Balboa Island 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
  UCD150987  Heterotheca grandiflora D. S. Park 2010-4-25 32 -2 Orange Whiting Ranch Wilderness Park, along trail. 226 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
  RSA0075807  Heterotheca grandiflora Kenneth Beard 1934-03 s.n. Orange Riverbank of Santa Ana River. Comment
  UC537029  Heterotheca sessiliflora subsp. echioides Lawrence M. Booth 1932-7-29 1330 Orange Newport Lagoon Comment
  RSA93359  Heterotheca sessiliflora subsp. echioides F. W. Peirson 1924-8-29 5086 Orange 2.5 miles from Balboa on road inland along creek. Comment
  CAS-BOT-BC318990  Heterotheca sessiliflora var. echioides John Thomas Howell 1927-9-24 3113 Orange North side of Santa Ana Canyon 365 Comment
  CAS-BOT-BC55398  Hirschfeldia incana Ira L. Wiggins 1965-10-24 20281 Orange Fullerton. Along Skyline Driver near intersection with Raymond Street. Comment
  HSC6595  Hirschfeldia incana J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  RSA743501  Hirschfeldia incana Fred M. Roberts 2008-7-10 7077 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  RSA416  Hoita macrostachya J. T. Howell 1928-7-6 1029 A Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCSB48008  Hoita macrostachya Roberts, Jr., Fred 1980-7-11 Orange Santa Ana Mtns.; Viejo Canyon, 3.0 km. ENE San Juan Guard Station; 0.7 km. N Hwy.74 355 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
  RSA7466  Holodiscus discolor Carl B. Wolf 1933-8-24 5390 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  SD40737  Holodiscus discolor E. R. Johnson 1933-6-22 5000 Orange Rancho Santa Ana, Santa Ana Canyon, NW corner of ranch, 1/4 Mi. E, 1/2 mi. S 305 Comment
  CAS-BOT-BC150004  Holodiscus discolor var. discolor B. D. Stark 1931-6-20 2248 Orange East fork of Claymine Canyon, north end of Santa Ana Mountains 304 Comment
  RSA701429  Hordeum depressum Rankin s.n. Orange Laguna Beach Comment
  UCD85590  Hordeum depressum A. A. Beetle 1942-4-19 3094 Orange 20 miles S of Santa Ana, road to Laguna. Comment
  RSA0042733  Hordeum glaucum David Barrios 1991-5-1 10 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  CHSC109697  Hordeum intercedens D. Bramlet 1999-6-11 2808 Orange On slope 76 m east of Cristianitos Creek and 488 m northeast of the intersection of Avenida Pico and Cristianitos Road. UTM 11S 04 47 340mE x 37 02 080mN 79 Comment
  RSA592063  Hordeum intercedens R. E. Riefner 1996-5-19 96 -94 Orange NW of Cooks Reservoir, City of Dana Point, Dana Hills. Comment
  RSA642532  Hordeum intercedens D. E. Bramlet 1999-6-11 2808 Orange On slope 76m east of Cristianitos Creek and 488m northeast of the intersection of Avenida Pico and Cristianitos Road., UTM 11S 04 47 340mE X 37 02 080mN. 79 Comment
  RSA678738  Hordeum intercedens Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5857 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive., (UTM: 11S - 04 33 104mE, 37 02 642mN) 73 Comment
  RSA543972  Hordeum murinum subsp. leporinum Steve Boyd, Orlando Mistretta 1991-5-9 6202 B Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  POM48470  Hydrocotyle umbellata F. W. Peirson 1924-10-19 5237 Orange Wintersberg Comment
  RSA697416  Hymenolobus procumbens Elisabeth Norland 1929-2-16 3 Orange Cypress. Comment
  RSA0106894  Hypericum canariense R. E. Riefner Jr. 2010-6-9 10 -56 Orange City of San Juan Capistrano, La Novia Ave. at Valle Rd. 45 Comment
  UC1543186  Hypochaeris glabra Donald G. Nelson 1935-4-6 234 Orange e San Juan Capistrano; Cleveland National Forest Comment
  UCR209349  Hypochaeris glabra Fred M. Roberts 2008-4-14 6892 Orange Santa Ana Mountains, Upper Weir Canyon, east fork, 3.4 km eat of Robbers Peak, Irvine Ranch Conservancy 433 Comment
  UCR238204  Hypochaeris glabra Mark A. Elvin 2003-3-30 2385 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  SEINET7249215  Ipomoea cairica R. E. Riefner Jr. 2012-1 12 -563 Orange City of Laguna Beach, South Crescent Beach, Circle Way near Cliff Drive. 3 Comment
  RSA603299  Isocoma menziesii R. E. Riefner 1997-7-12 97 -234 Orange San Clemente State Beach Comment
  UCR151113  Isocoma menziesii Scott D. White 1998-10-19 7190 Orange Santa Ana Mtns foothills, Yorba Linda, c. 0.5 mi south of Telegraph Canyon between Ohio St. and Fairmont 305 Comment
  SD124238  Isocoma menziesii var. menziesii C. W. Tilforth 1976-10-21 1225 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana Comment
  UCR247911  Isocoma menziesii var. menziesii Fred M. Roberts 2012-9-6 7694 Orange SAN JOAQUIN HILLS: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 km WNW Pelican Hill summit. 37 Comment
  CAS-BOT-BC311657  Isocoma menziesii var. vernonioides Ira L. Wiggins 1965-10-27 20305 Orange Along Brea Canyon Road just SW of Los Angeles County line Comment
  CAS-BOT-BC311670  Isocoma menziesii var. vernonioides John Thomas Howell 1927-9-24 3105 Orange On n. side of Santa Ana Canon [Canyon] 152 Comment
  OBI28466  Isocoma menziesii var. vernonioides J. & B. Sample, B. Sample 1981-8-12 5589 Orange Near Orange County line on hwy 74 610 Comment
  POM147499  Isocoma menziesii var. vernonioides F. M. Reed 1928-4-27 5701 Orange Between Laguna and Newport. Comment
  RSA573427  Isocoma menziesii var. vernonioides Steve Boyd, Tim Ross 1994-9-14 8348 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
  SD41496  Isocoma menziesii var. vernonioides Edith A. Purer 1932-8-31 4871 Orange Near Route 101 on stabilized sand dunes Comment
  UC221420  Isocoma menziesii var. vernonioides F. M. Reed 1917-7-1 3918 Orange bluffs at Laguna Laguna Comment
  UC892011  Isocoma menziesii var. vernonioides Carl B. Wolf 1932-6-28 3807 Orange on Bixby Ave; Bryant Ranch 91 Comment
  RSA90  Isolepis cernua J. T. Howell 1927-7-18 434 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  CHSC37641  Isomeris arborea T. B. Devine 1981-7-31 738 Orange Bayside Drive, ca. 1/2 mi N of its junction with Jamboree Road, Newport Back Bay. 6 Comment
  IRVC28772  Isomeris arborea Anh T. Nguyen, Duy Nguyen & Christina Nguyen 2006-2-4 1 Orange San Joaquin Marsh; NW Edge of Marsh Southern Coastal 5 Comment
  IRVC9272  Isomeris arborea B. T. Gittins 1963-5-24 247248 Orange Newport Bay, beside road near salt ponds. Newport Beach Comment
  IRVC9274  Isomeris arborea B. T. Gittins 1963-5-24 247248 Orange Newport Bay, beside road near salt ponds. Newport Beach Comment
  UCR239843  Iva hayesiana O. F. Clarke 2004-4-5 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  IRVC21634  Jaumea carnosa P. Fishman, H. R. Williams 1969-9-23 981 Orange Upper Newport Bay, below east bluff; above high tide line. Newport Beach Comment
  UCR239831  Jaumea carnosa O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  POM47591  Jaumea carnosa I. M. Johnston 1924-8-29 s.n. Orange 3 miles north of Balboa. Comment
  RSA226639  Juglans californica Christopher Davidson, B. Benny 1971-6-15 1555 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  CHSC116494  Juglans californica R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49613 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station. Comment
  CAS-BOT-BC229009  Juglans hindsii R. E. Riefner, Jr. 2011-9-10 11 -124 Orange Santa Ana Canyon, I-91 northbound, S side of freeway, located within 100 ft of the Riverside County line 127 Comment
  CAS-BOT-BC414248  Juglans hindsii R. E. Riefner, Jr. 2014-7-10 14 -240 Orange City of Laguna Beach, Laguna Canyon, Sun Valley Dr. along creek near Stan's Ln. 73 Comment
  SD253482  Juglans hindsii R. E. Riefner Jr. 2011-9-10 11 124 Orange Santa Ana Canyon, I-91 northbound, south side of freeway, located within 100 ft of the Riverside County line. 127 Comment
  CAS-BOT-BC110026  Juncus acutus L. R. Abrams 1917-6-23 6572 Orange Balboa. Comment
  UCR207558  Juncus acutus O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  RSA368106  Juncus acutus subsp. leopoldii F. R. Fosberg 1930-7-10 S 3192 Orange Anaheim Landing. [Los Angeles Co. on label] 1 Comment
Read comments Jan 29 2015
  UCR132981  Juncus acutus subsp. leopoldii Adrian Wolf 2000-7-3 447 Orange Santa Ana Mtns., 0.4 km SE of Black Star Canyon mouth 290 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
  UCR193378  Juncus balticus subsp. ater A. C. Sanders, Mitch Provance 2008-5-20 35395 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
  RSA731916  Juncus balticus var. balticus Fred M. Roberts, Sandy Leatherman 2007-11-27 6663 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  UC1543046  Juncus effusus subsp. austrocalifornicus Donald G. Nelson 1935-4-6 244 Orange e of San Juan Capistrano (200-300 ft below main highway, about 4 mi from summit); San Juan Canyon Comment
  SEINET3880056  Juncus macrophyllus A. C. Sanders, Fred M. Roberts 2008-7-16 35859 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hangmans Tree Canyon (El Toro 7.5' Q).; 0 395 Comment
  RSA106  Juncus mexicanus J. T. Howell 1927-6-16 145 Orange Botany Garden, Rancho Santa Ana. 152 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
  SEINET3282755 Image available Juncus textilis A. C. Sanders, Fred M. Roberts 2008-7-16 35855 Orange Peninsular Range; Santa Ana Mtns.; Lomas de Santiago, upper Hangmans Tree Canyon. 395 Comment
  UC536958  Juncus textilis Lawrence M. Booth 1932-6-7 1159 Orange Newport Lagoon Comment
  UCR193843  Juncus xiphioides A. C. Sanders, Fred M. Roberts 2008-7-16 35857 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  RSA17462  Juncus xiphioides Percy C. Everett 1936-9-19 8272 Orange Santa Ana Mountains, Silverado Canyon. 0.7 mile E of Shadybrook Resort. 701 Comment
  SEINET11788654  Juncus xiphioides J. F. Bright, Wyman, C. 1933-1 8210 Orange valleys back of La Guna Beach Comment
  UC632463  Juniperus californica R. C. Dickson 1939-9-10 Orange five mi e San Juan Capistrano Comment
  IRVC16202  Juniperus monosperma Gordon A. Marsh, K. G. Marsh 1977-11-21 s.n. Orange Ortega Hwy, north side, near Hwy marker 31 and OC BM 3W-24-72, across San Juan Creek from Rancho Mission Viejo Cow Camp; naturalized, numerous small trees. Rancho Mission Viejo Comment
Read comments Mar 28 2014
  UCR275232  Juniperus virginiana Robert DeRuff 1998-1 508 Orange South Coast, upper Newport Bay, below and north of intersection of Back Bay Dr., with Eastbluff Dr. 3 Comment
  UC1018202  Keckiella antirrhinoides J. Warren 1952-4-5 Orange Santa Ana Canyon Comment
  UC1063326  Keckiella antirrhinoides A. Lewis Mar 1934 340 Orange Santa Ana Canyon; Corona Quad. 152 Comment
  UCR270352  Keckiella antirrhinoides Dick Newell, Don Millar 2016-3-29 422 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago; Cactus Trail, 0.1 mile west of Limestone Ridge Trail 399 Comment
  NY786525  Keckiella antirrhinoides var. antirrhinoides D. C. Michener 1980-6-5 3668 Orange Santa Ana Mountains. San Juan river valley, on terrace near abandoned mine(s). Comment
  NY790216  Keckiella cordifolia F. R. Fosberg 1931-6-21 S 5133 Orange Silverado Canyon, Santa Ana Mountains Comment
  RSA401707A  Keckiella cordifolia M. B. Dunkle 1934-6-18 3996 Orange San Juan Canyon 305 Comment
  RSA649976  Keckiella cordifolia Gat Shlomo 1959-5-12 33 Orange Carbon [Canyon] Comment
  UC1294011  Keckiella cordifolia E. K. Balls 1958-6-27 23283 Orange 5 mi se Silverado (Gate); Santa Ana Mts., Silverado Canyon 1097 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
  SD134374  Kickxia elatine Craig Reiser 1991-7-1 Orange Live Oak Road near the foothills of the Santa Ana Mountains Comment
  RSA72  Koeleria macrantha J. T. Howell 1928-3-17 879 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CDA7112  Koelreuteria bipinnata T. B. Salvato, K. Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast; Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Dirve. Comment
  CDA7193  Koelreuteria bipinnata T. B. Salvato, K. Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast; Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Dirve. Comment
  CDA9461  Koelreuteria bipinnata D. G. Kelch, Mark Elvin 2006-12-9 6 .556 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  CAS-BOT-BC340501  Lactuca serriola John Thomas Howell 1927-7-27 2855 Orange Hills on n. side of Santa Ana Canon [Canyon] 152 Comment
  SD247453  Lagunaria patersonia R. E. Riefner Jr. 2011-6-29 11 76 Orange City of Laguna Beach, general area of Shaw's Cove, vicinity of Cliff Drive and Fairview Street. 0 Comment
  UCR240187  Lagunaria patersonia R. E. Riefner Jr. 2011-6-29 11- 76 Orange South Coast, city of Laguna Beach, general area of Shaw's Cove, vicinity of Cliff Drive and Fairview Street 1 Comment
  RSA732071  Lamarckia aurea A. C. Sanders, Fred M. Roberts 2008-3-25 34557 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR154272  Lamarckia aurea Mark A. Elvin 2004-5-2 3427 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  CAS-BOT-BC338908  Lasthenia californica Agnes M. Bowman 1899-6-1 s.n. Orange Orange Comment
  UCR209358  Lasthenia coronaria Fred M. Roberts, D. E. Bramlet, Megan Lulow 2008-4-4 6844 Orange Lomas de Santiago, Loma Ridge, at Calochortus Ridge near East Lomas Ridge Road, 0.7 km east of Bee Peak, Irvine Ranch Conservancy 509 Comment
  SD240877  Lasthenia gracilis Jeffrey Ross, R. Zaka 1998-5-2 39 Orange South Coast: North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenus and University Drive (Tustin 7.5'Q) 25 Comment
  RSA545171  Lasthenia gracilis Timothy S. Ross, Amy Kendall 1992-4-15 6194 Orange San Clemente Island. Central upland portion of the island, SW of 'Ledge'; 236 degrees SW, ca 170m distant from summit of 'Ledge.' 393 Comment
Read comments Apr 7 2021
  UCR193068  Lathyrus vestitus A. C. Sanders, T. B. Salvato 2008-5-13 35334 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
  HSC14711  Lathyrus vestitus subsp. alefeldii S. M. Clapp 1966-4-10 27 Orange 3 mi. into Black Star Canyon 152 Comment
  UC729698  Lathyrus vestitus var. alefeldii Carl B. Wolf 1932-3-8 Orange w base Santa Ana Mts.; , Santiago Dam 304 Comment
  UCSB12895  Lathyrus vestitus var. alefeldii 1962-3-9 Orange 12.2 miles east of San Juan Capistrano on State 74 243 Comment
Read comments Apr 10 2016
  UCR141338  Laurus nobilis Robert DeRuff 1990-3-31 391 Orange Southern Coast, Newport Beach, Newport Back Bay, East Bluff 9 Comment
  UCR217461  Lavatera cretica Mark A. Elvin 2003-2-23 2308 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  POM6370  Layia platyglossa subsp. campestris P. A. Munz, L. T. Street, Williams 1919-5-3 2646 Orange Santa Ana River Canyon. Comment
  RSA17019  Layia platyglossa subsp. campestris Percy C. Everett 1935-4-15 6462 Orange 8/10 mile E of Atwood on S side of Santa Fe RR. 107 Comment
  RSA705543  Leersia oryzoides R. E. Riefner Jr. 2003-12-14 3 -458 Orange Featherly Regional Park, Santa Ana River, vicinity of La Palma Avenue and Lomas de Yorba West, S of Gypsum Canyon Road. 105 Comment
  RSA723966  Lemna gibba R. E. Riefner 2005-10-27 05 -730 Orange City of Huntington Beach, Huntington Central Park near Goldenwest St. 1 Comment
  UCSB52476  Lemna minuta Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach; Newport Backbay, Back Bay Dr., 1.4 km. N jct. San Joaquin Hills Rd. 1 Comment
  CAS-BOT-BC221603  Lepechinia cardiophylla John Thomas Howell 1927-6-26 2606 Orange Claymine Canyon, northern Santa Ana Mts. 609 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
  RSA649677  Lepechinia cardiophylla R. E. Riefner Jr. 2000-8-3 20 -706 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge cypress forest. 535 Comment
  CAS-BOT-BC89176  Lepidium draba P. B. Kennedy 1924-2-13 s.n. Orange Wintersberg. Comment
  UCD115425  Lepidium draba P. B. Kennedy 1924-2-13 s.n. Orange Wintersberg. Comment
  POM202604  Lepidium lasiocarpum L. M. Booth 1932-5-24 24 Orange Newport Bay Comment
  POM21181  Lepidium lasiocarpum Helen D. Geis 1902-3-20 s.n. Orange Bed Santiago Creek. Comment
  RSA749841  Lepidium lasiocarpum D. Bramlet, Weena Sangkatavat 2008-3-27 4131 Orange Bee Canyon, Bowerman landfill site. 528 m S of the Bee Canyon access road and 440 m W of the active landfill. Comment
  UCR186687  Lepidium latifolium T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1908 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  UC1543086  Lepidium virginicum Donald G. Nelson 1935-4-15 308 Orange between Costa Mesa and Newport Beach Comment
  CAS-BOT-BC60082  Lepidium virginicum var. menziesii John Thomas Howell 1927-6-21 2561 Orange North side of Santa Ana Canyon. 152 Comment
  UCR222386  Lepidium virginicum var. robinsonii Mark A. Elvin 2003-1-26 2245 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  POM50054  Lepidospartum squamatum Helen D. Geis 1902-1 576 Orange Santiago Canyon. Comment
  RSA717044  Lepidospartum squamatum Fred M. Roberts, Chris M. Barnhill 2005-9-27 6287 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano. 27 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
  UCR154270  Leptochloa uninervia Mark A. Elvin 2004-5-2 3425 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR17334  Leptodactylon californicum Andrew Alexis 1978-4-29 s.n. Orange Santa Ana Mtns, mouth of Modjeska Canyon. Comment
  UCR192117  Leptodactylon californicum A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35302 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UCR270356  Leptosiphon floribundus subsp. glaber Dick Newell, Judy Booth 2016-4-24 424 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 2.04 miles east of Los Pinos Peak on North Main Divide Rd. 945 Comment
  UCR240081  Leptosiphon parviflorus Dick Newell, Don Millar 2012-5-22 258 Orange Peninsular Range; Santa Ana Mtns., on Lake View Rd. above Irvine Lake at State Spur Rd. 564 Comment
  UCR102031  Lessingia filaginifolia B. G. Pitzer 1997-3-25 3009 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR193850  Lessingia filaginifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35825 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  UCR195015  Lessingia filaginifolia A. C. Sanders, Fred M. Roberts 2008-8-7 35970 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  RSA734905  Leymus condensatus A. C. Sanders 2008-5-28 35433 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA739779  Leymus condensatus A. C. Sanders, Fred M. Roberts 2008-7-3 35666 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  RSA0018625  Leymus condensatus R. H. McArthur 1934-5-19 s.n. Orange Trabuco Canyon Bottom. Comment
  UC1873112  Limonium R. E. Riefner Jr. 2006-8-13 06 -391 Orange salt marsh with Salicornia; Coastal Salt Marsh 8 Comment
  UC1789093  Limonium R. E. Riefner Jr. 2005-9-16 05 -667 Orange Upper Newport Bay, E of Bayside Dr. at Big Canyon Creek. 6 Comment
Read comments Jan 7 2016
  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
  RSA401667A  Limonium californicum F. R. Fosberg 1931-8-19 7284 Orange Newport Bay. 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
  UC1873119  Limonium duriusculum R. E. Riefner Jr. 2005-11-23 05 -772 Orange City of Newport Beach, Newport Bay, Bay View Dr. at Jamboree Road 6 Comment
  UCR106280  Limonium perezii B. G. Pitzer, M. Georgiady 1997-4-5 3091 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
  RSA658207  Limonium perezii T. A. Daubert 1991-5-19 672 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. Comment
  RSA671248  Limonium ramosissimum R. E. Riefner 2002-5-4 20 -92 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  CAS-BOT-BC226771  Linanthus californicus Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canon [Canyon] Comment
  CHSC13481  Linanthus californicus T. N. Casale 1974-4-11 5 Orange On side of road, ca. 7.3 mi ne of the Mission San Juan Capistrano on Hwy 74. 243 Comment
  POM212347  Linanthus californicus B. D. Stark 1931-3-12 1938 Orange Santa Ana Mountains, 3 miles north of Modjeska's home 305 Comment
  SD247694  Linanthus californicus R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49691 Orange Northern Santa Ana Mountains; Sierra Peak. 900 Comment
  RSA678735  Linanthus dianthiflorus Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5860 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive. 73 Comment
  UCR191782  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34559 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA690973  Linanthus liniflorus Scott D. White, Michael Honer 2003-5-29 9424 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  UC1419618  Linaria maroccana J. McNeill 1969-4-10 3034 Orange Newport, Eastbluffs, Irvine Arboretum Irvine Arboretum; Upper Newport Bay, Newport, Eastbluffs, Irvine Arboretum 15 Comment
  UC1419828  Lindernia dubia var. anagallidea G. D. Barbe 1973-8-9 1693 Orange Santa Ana (Tustin); Bordier's Nursery, 7231 Irivne Blvd Comment
  CDA41684  Lindernia dubia var. anagallidea G. D. Barbe 1973-8-9 1693 Orange Bordier s Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). 0 Comment
  CAS-BOT-BC432275  Lithophragma affine Alice Eastwood; John Thomas Howell 1937-4-24 3927 Orange 2 miles E of San Juan Hot Springs Comment
  RSA651345  Lobularia maritima Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange 60 Comment
  JEPS33564  Logfia filaginoides Alice King 1908-4-1 Orange Santiago Creek (This was the only locality given and it is assumed that it is the creek of the name in Orange County--L. Heckard, 1964) Santiago Creek Comment
  SD247596  Logfia filaginoides R. F. Thorne, C. W. Tilforth, E. W Lathrop 1977-4-27 49668 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  RSA603344  Lolium perenne Scott D. White 1997-6-12 5322 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  UCR131729  Lolium perenne C. B. Wolf 1932-7-7 03858 Orange South Coast, Bryant Ranch, Bryant Ave, at pump house 0.5 mi. east of Los Alamitos Blvd. 6 Comment
  RSA184121  Lolium perenne I. L. Wiggins 1965-10-24 20290 Orange At corner of Yorba Linda and State College Blvds., Fullerton Comment
  RSA697737  Lolium perenne subsp. multiflorum Minor Warne 1934-5-11 s.n. Orange Talbert Drainage. Comment
  POM202588  Lolium perenne subsp. multiflorum L. M. Booth 1932-5-15 1203 Orange Costa Mesa. Comment
  RSA650633  Lolium perenne var. multiflorum Daniel Truong 1991-5-5 3 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  CLARK-A1528-4720  Lolium temulentum John C. Roos 1937-5-21 2068 Orange Santa Ana Comment
  UCR139448  Lolium temulentum E. R. Johnson 1932-5-18 3638 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden, east edge of grain field bordering Rancho 198 Comment
  POM202585  Lolium temulentum L. M. Booth 1932-5-19 1078 Orange Newport Bay. Comment
  CLARK-A1528-2431  Lomatium lucidum John C. Roos 1960-5-30 Orange Santa Ana Mountains 1066 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
  IRVC325  Lonicera japonica B. Aldis 1965-4-25 Orange Slater Ave. Huntington Beach Comment
  RSA697263  Lonicera subspicata Keith E. Hoffmaster 1933-5-27 s.n. Orange Santa Ana Mountains. Comment
  RSA753969  Lonicera subspicata A. C. Sanders, Fred M. Roberts 2008-7-16 35858 Orange Lomas de Santiago, upper Hangmans Tree Canyon. 395 Comment
  RSA658216  Lonicera subspicata var. denudata T. A. Daubert 1991-5-26 668 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island Comment
  CAS-BOT-BC198563  Lotus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest 396 Comment
  RSA681023  Lotus hamatus Fred M. Roberts, David E. Bramlet 2003-3-13 5582 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 207 Comment
  UC1543240  Lotus hamatus Donald G. Nelson 1935-4-14 286 Orange facing Newport Bay and the ocean (along main coast highway); Newport Beach Comment
  RSA0006681  Lotus hamatus J. T. Howell 1927-6-8 56 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA392  Lotus heermannii J. T. Howell 1928-7-6 1029 -B Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UC454692  Lotus heermannii I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  RSA697975  Lotus salsuginosus Olive Van Meter s.n. Orange Black Star Canyon. Comment
  UCR191238  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-4-22 34988 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  RSA498808  Lotus salsuginosus E. S. Spalding 1923-12-1 14175 Orange Seashore opposite San Juan de Capistrano. Comment
  RSA0036646  Lotus salsuginosus var. salsuginosus Robt. Allen, Richard Newell 2009-7-11 s.n. Orange Peninsular Ranges; Santa Ana Mountains regions: Upper Santiago Canyon, just past community of Modjeska Canyon, Fleming Ranch, East end of Modjeska Canyon Road. 621 Comment
  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
  JEPS55886  Lotus scoparius Alice King May 1902 Orange Newport Comment
  POM183955  Lotus scoparius P. A. Munz 1932-3-29 12187 Orange Costa Mesa 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
  RSA590947  Lotus scoparius Fred M. Roberts 1991-3-2 4778 Orange San Joaquin Hills: Laguna Canyon, Laguna Laurel, just west of Laguna Canyon Road, ca. 2 km N jct. El Toro Road, 4.5 km E Signal Peak. 110 Comment
  SEINET10484472  Lotus scoparius Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7127 Orange In vicinity of laguna beach. Corolla yellow fading to orange. 152 Comment
  UCR191227  Lotus scoparius subsp. brevialatus A. C. Sanders 2008-4-29 35121 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR252212  Lotus scoparius subsp. scoparius Amanda C. Swanson 2013-4-21 28 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  IRVC2251  Lotus scoparius subsp. scoparius C. Hinesly 1965-1-30 Orange [Newport] Back Bay. Newport Beach Comment
  RSA406321  Lotus strigosus M. B. Dunkle 1933-3-5 3087 Orange San Juan Canyon 304 Comment
  RSA629056  Lotus strigosus Valerie L. Soza, LeRoy Gross 1999-6-10 523 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1554 Comment
  RSA649262  Lotus strigosus T. Pringle 1966-3-22 68 Orange In Silverado Canyon Comment
  RSA732077  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-3-25 34565 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UC864904  Lotus strigosus Carl B. Wolf 1932-3-8 Orange 0.5 mi n Corona del Mar (borders of Newport Bay); Newport Bay 7 Comment
  UCR11949  Lotus strigosus Carl Epling 1943-3-28 s.n. Orange Peninsular Range; Santa Ana Mtns. Foothills, 4-5 mi. east of San Juan Capistrano 107 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
  IRVC24771  Lotus strigosus var. strigosus Fred M. Roberts 1986-4-24 2796 Orange Rancho Mission Viejo: Canyon east of Trampas Canyon, S of Hwy 74, 2.5km E Viejo Survey Mark. Santa Ana Mountains 113 Comment
  UC864299  Lotus wrangelianus I. M. Johnston 1918-5-4 1932 Orange Laguna Beach 6 Comment
  RSA717042  Ludwigia peploides Fred M. Roberts, Chris M. Barnhill 2005-9-27 6285 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  POM20186  Ludwigia peploides subsp. peploides L. M. Booth 1932-6-7 1164 Orange Newport Lagoon. 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
  RSA585490  Lupinus arboreus var. arboreus R. E. Riefner 1994-5-22 94 -384 Orange San Mateo Unit, San Onofre State Beach, west of Pico Avenue. Comment
Read comments Nov 19 2013
  RSA699291  Lupinus bicolor Minor Warne 1934-03 s.n. Orange Laguna Canyon Comment
  RSA749847  Lupinus bicolor D. Bramlet, Weena Sangkatavat 2008-3-27 4130 Orange Bee Canyon, Bowerman landfill site. 528 m S of the Bee Canyon access road and 440 m W of the active landfill. Comment
  UCR192505  Lupinus bicolor A. C. Sanders, Fred M. Roberts 2008-3-25 34552 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR240260  Lupinus bicolor D. E. Bramlet 2003-3-20 3350 Orange South Coast, Donna O'Neill Reserve; NE corner of the reserve, 150 m west of Cristianitos Rd. and 1.9 km north of the E-W access road 134 Comment
  SEINET6932636 Image available Lupinus bicolor W. P. Vestal, A. G. Vestal 1955-3-24 3463 Orange Plano Trabuco, ca. 4 miles east of El Toro. Comment
  IRVC21215  Lupinus bicolor subsp. umbellatus Fred M. Roberts 1984-3-9 1241 Orange Wagon Wheel Regional Park: 2.6km NE Median Rancho Survey Mark, Santa Ana Mountains 210 Comment
  SD140102  Lupinus excubitus B. Pitzer, S. Hemstreet 1992-5-27 1964 Orange Cleveland National Forest, along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy), ca. 2 airmiles west of El Cariso Campground 762 Comment
  UCR237921  Lupinus excubitus Dick Newell, Don Millar 2012-6-5 269 Orange Peninsular Range; Santa Ana Mtns., Loma Ridge East, 0.35 mi. due east of Hicks Haul Rd. 411 Comment
  UCSB47631  Lupinus excubitus Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail; on north side of road; 0.4 km. NNE Falcon Group Camp (near Blue Jay CG); Santa Ana Mtns. 1067 Comment
  CAS-BOT-BC216670  Lupinus excubitus subsp. hallii Munz; Street; Williams 1919-5-3 2658 Orange Santa Ana Canon [Canyon] Comment
  CAS-BOT-BC216676  Lupinus excubitus subsp. hallii Ramon Valverde 1939-5-1 3514 Orange Administrative building, grounds, Rancho Santa Ana Botanic Garden Comment
  CAS-BOT-BC216669  Lupinus excubitus subsp. hallii R. D. Harwood 1920-4-23 5727 Orange Santa Ana Mountain 548 Comment
  SEINET10452686  Lupinus excubitus subsp. hallii Stark 1933-2-3 STARK 19497 Orange Garden #6455 (from 1780 many generations). Comment
  RSA798188  Lupinus excubitus var. hallii Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49597 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station Comment
  HSC14829  Lupinus hirsutissimus S. M. Clapp 1966-4-7 17 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  IRVC2324  Lupinus hirsutissimus Randy Acevedo 1965-4-30 s.n. Orange Newport Beach, [Newport] Back Bay Southern Coastal Comment
  RSA2086  Lupinus hirsutissimus Carl B. Wolf 1931-3-6 1843 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  IRVC20367  Lupinus hirsutissimus Fred M. Roberts 1983-3-16 931 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  UCSB52913  Lupinus longifolius Roberts, Fred; Marsh, K. 1983-5-13 Orange San Joaquin Hills; Laguna Canyon along Laguna Canyon Road, 1.7 km. N Thruston School; 6.4 km. SE Signal Peak 50 Comment
  IRVC17979  Lupinus microcarpus var. microcarpus Karlin G. Marsh 1980-5-1 s.n. Orange Rancho Mission Viejo: E of Tijeeras Canyon Santa Ana Mountains Comment
  POM276293  Lupinus nanus subsp. menkerae Lyman D. Benson 1933-3-13 3089 a Orange caliente Wash, Greenhorn Range, Caliente Creek Watershed. 244 Comment
  IRVC2339  Lupinus sparsiflorus subsp. sparsiflorus J. Morgan 1965-4-14 s.n. Orange Laguna Canyon. Southern Coastal Comment
  POM6382  Lupinus sparsiflorus subsp. sparsiflorus Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2632 Orange Santa Ana River Canyon Comment
  RSA113262  Lupinus sparsiflorus subsp. sparsiflorus E. K. Balls 1955-4-4 20426 Orange San Juan Creek along Hwy 74, San Juan Capistrano to Elsinore. 46 Comment
  IRVC2355  Lupinus succulentus Janet Morgan 1965-3-3 s.n. Orange Laguna Canyon. Southern Coastal Comment
  UC1129752  Lupinus succulentus A. Lewis Mar 1934 348 Orange San Juan Hills; Corona Quad., San Juan Hills 396 Comment
  UC1543229  Lupinus succulentus Donald G. Nelson 1934-12-1 137 Orange E. Chapman Ave. Fullerton (along Barranca); , along Barranca 76 Comment
  IRVC2360  Lupinus truncatus D. Ibbetson 1965-4-10 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA414369  Lupinus truncatus Fay A. MacFadden 2939 Orange Laguna Beach. Comment
  RSA598921  Lupinus truncatus Scott D. White 1997-3-28 4851 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  RSA0055059  Lupinus truncatus James R. Shevock 1970-3-25 66 Orange Santa Ana Mountains. 381 Comment
  IRVC27879  Lycium A. C. Sanders, Mark A. Elvin 2003-10-12 27313 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  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
  POM4211  Lycium californicum D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  RSA743464  Lycium californicum Fred M. Roberts 2008-5-27 7010 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 45 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
  RSA0014850  Lythrum californicum Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6109 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, ca. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  SD236331  Lythrum californicum A. C. Sanders, Fred M. Roberts 2008-9-18 36093 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 299 Comment
  RSA700921  Macadamia ternifolia Unspecified 1938-05 s.n. Orange Santa Ana Comment
  CAS-BOT-BC334724  Madia gracilis John Thomas Howell 1927-6-26 2613 Orange Claymine Canyon, north Santa Ana Mountains 243 Comment
  UCR18628  Madia gracilis John C. Roos 1960-5-30 s.n. Orange Peninsular Ranges; Santa Ana Mtns, ridge at head of Hagador Canyon 1070 Comment
Read comments Jan 7 2013
  RSA918  Madia gracilis J. T. Howell 1927-6-26 232 Orange Claymine Canon near Sierra Peak. [canyon] 244 Comment
  CAS-BOT-BC206260  Malacothamnus fasciculatus John Thomas Howell 1927-6-20 2557 Orange North side of Santa Ana Canyon 243 Comment
  RSA743460  Malacothrix saxatilis var. saxatilis Fred M. Roberts 2008-7-10 7068 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  UCR130492  Malacothrix saxatilis var. saxatilis R. E. Riefner Jr. 1999-5-22 99- 289 Orange South Coast, city of Dana Point, west of Pacific Coast Hwy, vicinity of Salt Creek Park and Ritz Carlton Hotel 15 Comment
  IRVC22734  Malacothrix saxatilis var. tenuifolia Fred M. Roberts 1985-5-13 1787 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  CDA8325  Malacothrix saxatilis var. tenuifolia T. C. Fuller 1962-6-7 8875 Orange Brea Canyon Road to Pomona, 1.2 miles north of Brea. 0 Comment
  CDA1091  Malephora crocea D. G. Kelch 2006-12-9 6 .543 Orange Along Newport Back Bay Dr. in side canyon. Comment
  UCR236677  Malephora crocea Fred M. Roberts, Lee Ann Carranza, Jeff Roseler 2008-10-9 7126 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, at base of cliff along south edge, 0.7 km west of Marine Institute, Dana Point Harbor 3 Comment
  RSA696480  Malosma laurina E. K. Robinson 1934-10-23 s.n. Orange Santa Ana Comment
  UCR208048  Malosma laurina D. E. Bramlet 2004-5-27 3594 Orange Donna O'Neill Reserve, SW corner of Reserve, just east of the Telaga development, 1.43 km west of Cristianitos Road and 1.37 km N of Pico 183 Comment
  RSA678727  Malvaviscus arboreus Fred M. Roberts, Leo Song 2002-8-1 562 Orange San Joaquin Hills: Laguna Beach, South flank Temple hill, between Nyes Place and Balboa Ave.; 0.9 km ENE Sugarloaf pt. 183 Comment
  RSA441222  Marah macrocarpa L. C. Wheeler 1934-1-14 2356 Orange 1 mile E mouth of Aliso canyon near Laguna. 30 Comment
  RSA441224  Marah macrocarpa E. Crow 1929-2-22 161 Orange Santa Ana Mts., Calif Comment
  RSA734903  Marrubium vulgare A. C. Sanders 2008-5-28 35440 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  UC537163  Marrubium vulgare Lawrence M. Booth 1932-5-24 1107 Orange Newport Bay Comment
  UCR209346  Marrubium vulgare Fred M. Roberts 2008-4-15 6903 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
  CAS-BOT-BC67807  Marsilea vestita Arthur Haupt 1935-4-12 s.n. Orange Costa Mesa Comment
  SD65524  Marsilea vestita Arthur Haupt 1935-4-12 Orange Costa Mesa Comment
  RSA590719  Marsilea vestita R. E. Riefner 1994-4-15 94 -319 Orange Dana Hills, w ca 2 mi. of Cooks Reservoir Comment
  CAS-BOT-BC348161  Matricaria discoidea C. L. Hitchcock; C. V. Muhlick 1964-3-17 23065 Orange 8 miles e. of Yorba Linda, Santa Ana Canyon Comment
  CHSC69822  Matricaria occidentalis C. L. Mitchcock; C. V. Muhlick 1964-3-17 Orange Along road, 8 miles e. of Yorba Linda, Santa Ana Canyon. Comment
  IRVC25033  Medicago lupulina Fred M. Roberts 1986-8-26 3085 Orange University of California campus, Alderich Park just north of Engineering Building; Irvine 26 Comment
  UCR103219  Medicago polymorpha Scott D. White 1997-2-19 4692 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA399  Medicago polymorpha J. T. Howell 1928-2-7 823 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  RSA649317  Medicago polymorpha Marc Longwood 1975-4-2 s.n. Orange Collected from Baker Canyon, Santa Ana Mountains. Comment
  RSA755559  Medicago rigidula A. C. Sanders, Fred M. Roberts 2008-3-25 34527 Orange Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR192459  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
  IRVC10699  Medicago sativa B. T. Gittins 1963-4-20 177 Orange Jamboree and Palisades. Newport Beach Comment
  RSA747590  Medicago truncatula Fred M. Roberts 2000-5-5 5318 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., north slope, 1.6 kmSSW Bolero Spr. and 2.6 km W Bolero Lookout. 308 Comment
  UCD170853  Medicago truncatula R. E. Riefner Jr. 2011-5-20 11 -55 Orange South Coast, city of San Clemente, Avenida La Pata one block west of Calle Extremo at entrance to Richard Steed Memorial Park. 161 Comment
  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
  RSA746479  Medicago truncatula R. E. Riefner Jr. 2007-4-1 07 -166 Orange City of Laguna Niguel, Laguna Niguel Regional Park, general vicinity of La Paz Rd. at Aliso Creek. 70 Comment
  SD243385  Melaleuca viminalis R. E. Riefner Jr. 2006-11-12 06 669 Orange City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay near SR-73 overpass (San Joaquin Gun Club, Tustin 7.5'Q) 6 Comment
Read comments Oct 4 2017
  IRVC26847  Melica frutescens S. D. White 1997-3-28 4840 Orange Above Modjeska Canyon, proposed water tank site. Santa Ana Mountains 427 Comment
  RSA598969  Melica frutescens Scott D. White 1997-3-28 4840 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  CAS-BOT-BC281593  Melica imperfecta Helen D. Geis 1902-1-1 s.n. Orange Unspecified 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
  RSA680537  Melica imperfecta Scott D. White 2003-3-21 8821 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UCR207526  Melica imperfecta O. F. Clarke 2006-5-6 s.n. Orange Peninsular Range; Santa Ana Mtns., Coal Canyon 305 Comment
  UCR217458  Melica imperfecta Mark A. Elvin 2003-3-30 2397 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  SEINET11678864  Melica imperfecta J. F. Bright, Wyman, C. 1933-1 8214 Orange in foothills near Laguna Beach Comment
  UCR220025  Melilotus albus Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  RSA184169  Melilotus albus I. L. Wiggins 1966-5-3 20509 Orange Hwy S18 about 4.5 miles E of Laguna Beach Comment
  RSA590960  Melilotus albus Fred M. Roberts, Sandy Desimone 1991-3-28 4764 Orange Lake Forest: Along Regency Road near Brighton Lane, 5.4km SSW Bolero lookout. 244 Comment
  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
  HSC7688  Melilotus indicus J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  IRVC2406  Melilotus indicus C. Thompson 1965-4-10 s.n. Orange Newport Beach; Corona del Mar, Cameo Highlands. Southern Coastal Comment
  OBI7999  Melilotus indicus Kurt R. Neisess 1975-12-19 s.n. Orange Yorba Linda Comment
  RSA698034  Melilotus indicus Unspecified s.n. Orange Roadside-Near Orange Co. Park. Comment
  UCR193759  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-7-3 35711 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA5550  Melilotus indicus Carl B. Wolf 1932-6-28 3762 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA708448  Melilotus indicus Mark Elvin 2004-5-2 3410 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  SEINET3828309  Melinis repens R. E. Riefner Jr. 2011-1 11 -98 Orange Fuel modification areas. Newport Beach, Orange County Parks & Recreation lands, along Newport Coast Drive, between Vista Ridge& Alteza Rd. 281 Comment
  RSA725523  Mentha spicata var. spicata Fred M. Roberts, Robert L. Allen 2007-9-28 6601 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  POM49187  Mentzelia affinis Helen D. Geis 1900-1 517 Orange Hills back of Santa Ana. Comment
  RSA0054910  Mentzelia lindleyi Katherine Gorath 1932-4-25 s.n. Orange Cor. Chapman + Cambridge. Comment
  SD236328  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, Amber ONeal 2008-5-9 35313 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 345 Comment
  UC1178607  Mentzelia micrantha Peter Kamb 1948-6-19 1109 Orange se Slope of Santiago Peak; Santa Ana Mts.; Orange County-Riverside County 1219 Comment
  IRVC14  Mesembryanthemum crystallinum L. Stilgenbauer 1965-3-20 Orange Corona del Mar, 339 Milford Dr. Newport Beach Comment
  JEPS42917  Mesembryanthemum crystallinum L. M. Booth 1932-6-29 1224 Orange Newport Bay Comment
  UCR252194  Mesembryanthemum crystallinum Marissa Manahan 2011-5-7 s.n. Orange Newport Beach, Corona Del Mar State Beach; south of Avocado Ave. off Ocean Blvd. 25 Comment
  RSA18530  Mesembryanthemum crystallinum C. B. Wolf 1927-7-23 667 Orange Along the coast just north of San Clemente. Comment
  RSA65527  Mesembryanthemum crystallinum F. W. Peirson 1920-6-25 2210 Orange 5 miles south of San Juan Capistrano. Comment
  RSA696449  Mesembryanthemum lineare Anonymous 1903-11-24 s.n. Orange [Unspecified] Comment
  CAS-BOT-BC435275  Mesembryanthemum nodiflorum Carl B. Wolf 1927-7-23 662 Orange Juste no. of San Clemente Comment
  JEPS42909  Mesembryanthemum nodiflorum L. M. Booth 1932-8-5 1349 Orange Coastal Santa Ana Basin Comment
  SEINET3155128  Mesembryanthemum nodiflorum L. Abrams 1903-4-20 3280 Orange Near San Juan Comment
  UCR220023  Mesembryanthemum nodiflorum Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  RSA649844  Microseris heterocarpa D. E. Bramlet 2000-4-12 2974 Orange Fremont Canyon. The site is 1.1 km south of the existing access road on the north ridge of the canyon. The site is 1.07 km northeast of Santiago Creek. 317 Comment
  UCR98256  Microseris lindleyi Scott D. White 1997-3-28 4846 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  JEPS87319  Mimulus David M. Thompson 1992-5-16 1067 Orange 2.4 mi n Hwy 1 (along Hwy 133 (Laguna Canyon Road)) 50 Comment
  UC1424855  Mimulus Bennett, Dunn and Dziekanowski 1976-7-21 439 Orange Pacific Island Estates condominium Laguna Hills Comment
  UC943856  Mimulus H. E. McMinn, M. Van Rensselaer 1945-6-9 1911 A-F Orange ca. 5 mi e Laguna Beach (Laguna Canyon Highway) Comment
  RSA683067  Mimulus aurantiacus Fred M. Roberts 2003-3-19 5604 Orange Donna O'Neill Land Conservancy: Ridges west of Cristianitos Cyn., 1,750m NNW Sycamore gate and 315m W Cristianitos Rd. (Canada Gobernadora) 192 Comment
  HSC20689  Mimulus aurantiacus subsp. australis S. M. Clapp 1966-4-10 52 Orange a few mi. S of Modjeska Canyon 122 Comment
  UCR106282  Mimulus aurantiacus var. aurantiacus B. G. Pitzer, M. Georgiady 1997-4-5 3077 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  POM77  Mimulus aurantiacus var. pubescens D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA442700  Mimulus aurantiacus var. pubescens Albert J. Perkins s.n. Orange San Juan Hot Springs Comment
  UCD122401  Mimulus aurantiacus var. pubescens R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon. Comment
  UCR209340  Mimulus aurantiacus var. pubescens Fred M. Roberts 2008-4-22 6920 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, along Haul Road near asphalt plant, 2.2 km east-northeast of Rattlesnake Reservoir Dam and 2.2 km west-northwest of Bee Peak, Irvine Ranch Conservancy 188 Comment
  UCSB47965  Mimulus aurantiacus var. pubescens Roberts, Fred 1980-4-3 Orange San Juan Canyon; HWY 74; 0.4km NNE Lower San Juan Picnic Ground; Santa Ana Mountains 420 Comment
  RSA503159  Mimulus aurantiacus var. puniceus Gary D. Wallace, G. Cromwell 1966-4-16 455 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
  RSA747634  Mimulus aurantiacus var. puniceus Fred M. Roberts 2008-5-16 6981 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  UCR209662  Mimulus aurantiacus var. puniceus Fred M. Roberts 2008-5-16 6981 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, along north slopes above Dana Strand Beach, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 45 Comment
  RSA681048  Mimulus brevipes Scott D. White, Michael Honer 2003-5-29 9433 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. Steep, gen. south-facing slopes above trib. to Trampas Canyon, ca. 0.6 air mi. S of Ortega hwy and ca. ca. 0.5 mi west of Trampas Cyn. 122 Comment
  RSA749994  Mimulus brevipes A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35318 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR194549  Mimulus brevipes A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35318 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR215283  Mimulus brevipes Fred M. Roberts 2008-5-14 6965 Orange Lomas de Santiago, Loma Ridge, upper Bee Flat Canyon below Loma Ridge Road, 1.3 km north of Bee Peak and 5.4 km NW of Bolero Lookout. Irvine Ranch Conservancy 337 Comment
  UCR237814  Mimulus cardinalis Dick Newell, Judy Booth 2012-7-15 281 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 0.84 mi. NE of Maple Springs gate 638 Comment
  RSA716770  Mimulus clevelandii Fred M. Roberts, Michelle Balk, Robert Allen, Carol A. Roberts 2004-7-18 6075 Orange Santa Ana Mtns.: Upper Trabuco Cyn. along Trabuco Cyn. Trail, 1.3km NE Los Pinos Pk. and c.a. 0.25km by trail from Main Divide Truck Trail. 1245 Comment
  UC1294009  Mimulus clevelandii E. K. Balls 1958-6-27 23280 Orange 4.1 mi from (gate of) Silverado ( Santa Ana Mountains, Silverado Canyon); Santa Ana Mountains, Silverado Canyon 1036 Comment
  RSA769078  Mimulus guttatus L. C. Hull 1934-3-7 s.n. Orange Laguna Hills 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
  UCR158806  Mimulus pilosus A. C. Sanders, Mark A. Elvin 2005-9-2 31602 Orange Peninsular Range; Santa Ana Mtns., mouth of Lion Canyon near Lower San Juan Picnic Area, San Juan Creek Canyon 427 Comment
  RSA423690  Minuartia californica M. B. Dunkle 1935-2-10 4335 Orange Laguna Creek; Coastal Southern California. 61 Comment
  POM6462  Minuartia douglasii P. A. Munz, L. T. Street, G. Williams 1919-5-3 2615 Orange Santa Ana River Canyon. Comment
  CHSC19537  Mirabilis californica P. Fehr 1974-4-10 1 Orange Beach of trailor park between Costa Mesa and Laguna Beach on w side of Coast hwy. 0 Comment
  CAS-BOT-BC434672  Mirabilis laevis var. crassifolia C. L. Hitchcock; C. V. Muhlick 1964-3-17 23061 Orange 8 miles e. of Yorba Linda, Santa Ana Canyon Comment
  POM6381  Mirabilis laevis var. crassifolia P. A. Munz, L. T. Street, G. Williams 1919-5-3 2672 Orange Santa Ana River Canyon. Comment
  RSA737549  Mirabilis laevis var. crassifolia Fred M. Roberts 2008-3-12 6712 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UC1136571  Mirabilis laevis var. crassifolia A. Lewis Feb 1934 302 Orange Santa Ana Canyon 121 Comment
  CAS-BOT-BC385102  Mirabilis linearis var. decipiens Grace Cole Fleischman 1955-9-6 s.n. Orange Vicinty of Anaheim [communicated by Grace Cole Fleischman, per label] Comment
  CAS-BOT-BC435043  Mollugo verticillata L. R. Abrams 1901-6-1 1769 Orange Laguna Comment
  RSA0010773  Mollugo verticillata I. M. Johnston 1924-7-10 s.n. Orange Laguna Canyon. Comment
  RSA0059066  Monanthochloe littoralis CNPS Accuracy Assessment Team 2014-7-8 9567 .1 Orange Upper Newport Bay Nature Reserve. Comment
  RSA765071  Monardella hypoleuca A. C. Sanders, Mark A. Elvin 2005-9-2 31607 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 820 Comment
Read comments Aug 13 2012
  RSA0005452  Monardella hypoleuca F. W. Peirson 1923-9-7 4036 Orange Santa Ana Mountains: Trail Trabuco Canyon to Santago Peak. 1067 Comment
  RSA0005454  Monardella hypoleuca P. A. Munz 1923-9-7 7742 Orange Trail Trabuco Canyon to Santago Peak 915 Comment
  RSA0005447  Monardella hypoleuca subsp. hypoleuca Fred M. Roberts, R. E. Riefner 1988-7-19 4117 Orange Santa Ana Mtns: Upper Silverado Canyon, Maple Springs Truck Trail, 2.1km NNW Modjeska Peak. 1260 Comment
  RSA795173  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31613 Orange near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak 998 Comment
  SD237500  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 34615 Orange Santa Ana Mountains: upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks (Santiago Peak 7.5'Q) 975 Comment
  UC1995348  Monardella hypoleuca subsp. intermedia Carl B. Wolf 1936-6-22 8003 Orange 3 mi above F. S. Gate (along truck trail to Modjeska Pk.); Santa Ana Mts., Santiago Canyon 762 Comment
  UCR158811  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31609 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
Read comments Aug 17 2012
  UCR199794  Monardella hypoleuca subsp. intermedia Justin M. Wood 2008-6-23 15 Orange Santa Ana Mountains, foothills, on the Irvine Ranch, south of Limestone Canyon, c. 1/2 mi south of the sinks 351 Comment
  CAS-BOT-BC275289  Muhlenbergia microsperma Steve Boyd; Tim Ross 1992-5-19 7448 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Aliso Canyon at the confluence with Lucas Canyon, upstream to the Lucas Canyon Trail crossing 335 Comment
  RSA758011  Muhlenbergia microsperma D. E. Bramlet, Jim Harrison 2008-4-3 4157 A Orange South Bee Cyn. Bowerman landfill site, 1.2km south of Bee Cyn access road, & 122n west of the active landfill. Comment
  RSA758892  Muhlenbergia microsperma A. C. Sanders, Fred M. Roberts 2008-4-22 35009 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 213 Comment
  SD27973  Muhlenbergia microsperma Carl B. Wolf 1932-3-8 2689 Orange 1/2 mi. No. of Corona Del Mar. Borders of Newport Bay, low bluffs 7 Comment
  UCSB52863  Muhlenbergia microsperma Marsh, G.; Marsh, K. 1981-5-24 Orange Lower Hot Springs Canyon, Lazy W camp, on K-9 trail; Santa Ana Mts Comment
  RSA587118  Muilla maritima R. E. Riefner 1995-4-28 95 -110 Orange San Clemente State Beach. Comment
  RSA696203  Myosotis arvensis Virginia Pritchard, Ruth Greenwald 1938-05 s.n. Orange Santa Ana. Comment
  UC1618067  Myosurus Donald G. Nelson 1935-7-15 298 Orange Costa Mesa Comment
  CAS-BOT-BC219360  Nama stenocarpa Le Roy Abrams 1901-6-13 1770 Orange Laguna Comment
  RSA799944  Nama stenocarpa Justin M. Wood 2011-6-28 4309 Orange South Coast: City of Costa Mesa; Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA450846  Nassella lepida Fred M. Roberts 1983-3-10 886 Orange Dana Point headlands, S of Scenic Dr, 0.3km W Dana Point Harbor, 0.8km S Richard Henry Dana School. 45 Comment
  RSA680735  Nassella lepida Scott D. White 2003-3-21 s.n. Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA684300  Nassella lepida Fred M. Roberts 2003-3-19 5606 Orange Donna O'Neill Land Conservancy: Ridges west of Cristianitos Cyn., 1,750m NNW Sycamore gate and 315m W Cristianitos Rd. (Canada Gobernadora., 33 deg 29'51'' N, 117 deg 34'13''W 192 Comment
  RSA697693  Nassella lepida Anonymous s.n. Orange Orange County park Comment
  RSA70  Nassella lepida J. T. Howell 1927-6-9 65 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA743514  Nassella lepida Fred M. Roberts 2008-4-9 6865 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  RSA749301  Nassella lepida Fred M. Roberts 1999-4-21 5182 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
  UCD87799  Nassella lepida A. A. Beetle 1942-4-19 3097 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  RSA91618  Nassella lepida F. W. Peirson 1923-3-25 5362 Orange Aliso Creek, near Laguna Beach. Comment
  RSA747596  Nassella pulchra Fred M. Roberts 2000-5-19 5329 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  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
  RSA647951  Nasturtium officinale Ken Greby 1985-4-18 10 Orange N side of Laguna Canyon Rd., 1 km NE of El Toro Rd. 53 Comment
  RSA468366  Navarretia prostrata Anstruther Davidson 1890-05 s.n. Orange Laguna Beach. Comment
  UCR90772  Navarretia prostrata D. E. Bramlet 1995-4-29 2402 Orange Fairview Park, City of Costa Mesa. Site located some 366 m north of intersection of Wilson and Canyon Dr. and 152 m west of Canyon School, on a mesa overlooking the Santa Ana River 43 Comment
  CAS-BOT-BC109089  Nemacaulis denudata var. denudata E. K. Balls; P. C. Everett 1955-9-7 21431 Orange On Highway 101, mouth of Santa Ana River. 3 Comment
  RSA113269  Nemacaulis denudata var. denudata E. K. Balls 1955-4-4 20419 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101 Comment
  RSA665941  Nemacaulis denudata var. denudata Fred M. Roberts 1997-4-29 5023 Orange Bolsa Chica Salt Marsh; (US Fish and Wildlife Service cell 60) west of old oil field, 1.1 km. S Chica Survey Mark. 2 Comment
  RSA75869  Nemophila menziesii var. integrifolia F. W. Peirson 1923-5-6 3495 Orange Large patches on summit region. Santiago Peak, Santa Ana Mts 1723 Comment
  UCR266154  Nephrolepis cordifolia R. E. Riefner Jr. 2014-2-24 14- 64 Orange South Coast, city of Dana Point, west c. 0.1 mi from Island Way along Dana Point Harbor Drive, cliff slope immediately south of Santa Clara Avenue and Amber Lantern Street 11 Comment
  RSA700000  Nicotiana bigelovii L. C. Hull 1934-4-1 s.n. Orange Panorama Heights Comment
  RSA733734  Nicotiana bigelovii Gray s.n. Orange Orange Park Hill Comment
  RSA687  Nicotiana bigelovii var. wallacei J. T. Howell 1927-7-5 266 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA0069235  Nicotiana clevelandii Fred M. Roberts, Lee Ann Caranza 2009-4-7 7140 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 60 Comment
  UCR267213  Nicotiana clevelandii Fred M. Roberts, Lee Ann Caranza 2009-4-7 7140 Orange South Coastal Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor 60 Comment
  HSC21273  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  HSC21283  Nicotiana glauca D. W. Snell 1964-3-24 10 Orange 1 mi. E of Brea, N of Birch St. 120 Comment
  RSA731971  Nicotiana glauca A. C. Sanders, Fred M. Roberts 2008-4-8 34738 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  SEINET7073413  Nicotiana glauca A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  RSA0011259  Nicotiana glauca L. A. Anderson 1948-2-8 s.n. Orange In Trabuco Canyon, east of El Toro. 457 Comment
  RSA0060157  Nicotiana quadrivalvis A. C. Sanders, Fred M. Roberts 2008-4-8 34743 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  RSA126  Nolina cismontana J. T. Howell 1927-7-24 467 Orange Claymine Canyon, near Sierra Peak 167 Comment
  RSA70257  Nolina cismontana Frank W. Peirson 1923-5-5 3507 Orange Trabuco Canyon, Santa Ana Mountains 518 Comment
Read comments Jan 6 2018
  UCR209367  Nolina cismontana Fred M. Roberts, Linda Farley 2008-3-28 6832 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  UCR61531  Nolina cismontana James C. Dice 1986-5-31 s.n. Orange Mission Viejo, 1.2 km NW of Lake Mission Viejo, along SW edge of Vista delLago just west of the intersection w/ Canaveras 275 Comment
  UC501522  Nolina parryi Frank W. Peirson 1922-5-18 3026 Orange canyon heading e at river Santa Ana River 228 Comment
Read comments Nov 26 2007
  CAS-BOT-BC176682  Nothoscordum gracile A. C. Sanders 2008-7-3 35714 Orange Peninsular Range; Santa Ana Mts.: Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustione Staging Area 260 Comment
  CDA33842  Nothoscordum gracile Colin Williams 2011-4-13 PDR# 1544194 Orange Santa Ana, Chantilly Circle 0 Comment
  UC1618040  Nuttallanthus texanus Donald G. Nelson 1935-4-14 283 Orange near Pacific Electric Railway Station, Newport Beach Comment
  UCSB47625  Nuttallanthus texanus Roberts, Fred 1980-4-3 Orange Hills, 1.0km NE Dana Hills High School; Dana Point 75 Comment
  RSA98320  Oenanthe sarmentosa F. W. Peirson 1924-2-9 4525 Orange Between Wintersberg and the sea. Comment
  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
  CDA38146  Oenothera elata Mackessy & Patrick 1957-6-27 s.n. Orange Santa Ana River. 0 Comment
  UC454579  Oenothera elata subsp. hirsutissima I. J. Condit 1908-7-20 Orange Los Alamitos Comment
Read comments Nov 20 2010
  POM225239  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14171 Orange 5 miles south of Garden Grove. Comment
  POM225560  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14176 Orange About 6 miles south of Garden Grove. Comment
  RSA355662  Oenothera elata subsp. hirsutissima Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. Comment
  UCR239883  Oenothera laciniata O. F. Clarke 2004-4-5 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  JEPS25886  Oligomeris linifolia L. M. Booth 1932-5-24 1097 Orange Newport Bay Comment
  POM219209  Oligomeris linifolia L. M. Booth 1931-5-24 1097 Orange Bluff top N Newport Bay 8 Comment
  RSA5312  Opuntia B. D. Stark 1933-6-5 4503 Orange 2 mi S of summit of Skyline Drive, on road along ridge to santiago Peak. Santa Ana Mountains. 1067 Comment
  POM317674  Opuntia X occidentalis Lyman Benson 1966-3-19 16614 Orange Irvine Ranch, 4 miles northeast of Newport Beach. 91 Comment
  SEINET10732293  Opuntia X occidentalis Betty Venrick 1961-5-13 Venrick 586 Orange 3 miles North of Laguna Beach, on coast. Comment
  POM317733  Opuntia littoralis David Walkington 1963-5-17 168 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., Dana Park. Comment
  POM317735  Opuntia littoralis David Walkington 1963-5-23 175 Orange West side of N Euclid Ave. north of Sunny Hills West Home, Fullerton. 76 Comment
  UCR222870  Opuntia littoralis T. B. Salvato 2010-10-27 5125 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  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
  POM317769  Opuntia vaseyi David Walkington 1963-9-13 217 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  RSA0054847  Orthocarpus purpurascens Keith E. Hoffmaster 1927-4-2 531 Orange Santa Ana Mts. San Onofre. Comment
  CAS-BOT-BC355777  Osmadenia tenella Helen D. Geis 1902-1-1 s.n. Orange Santiago Creek Comment
  CAS-BOT-BC355779  Osmadenia tenella Herbert L. Mason 1925-4-25 2903 Orange 5 miles south of Laguna Comment
  CAS-BOT-BC355782  Osmadenia tenella H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  JEPS13141  Osmadenia tenella Frank W. Peirson 1922-5-18 1353 Orange Santa Ana Canyon 121 Comment
  IRVC15627  Osmorhiza brachypoda J. W. Johnson 1977-5-28 Orange Santiago Canyon, Fleming Property at E end of Modjeska; shaded bank of canyon side below chaparral. Santa Ana Mountains Comment
  RSA12828  Oxalis pes-caprae Carl B. Wolf 1934-12-26 6261 Orange 1/8 mile south of San Juan Capistrano 30 Comment
  CLARK-A1528-3766  Oxytheca trilobata John C. Roos 1960-6-11 Orange Santa Ana Mountains 975 Comment
  CAS-BOT-BC121214  Paeonia californica C. B. Wolf 1931-3-6 1842 Orange Trabuco Canyon, 1/2 mi. above Trabuco oaks, west slope of the Santa Ana Mtns. Upper Sonoran. 457 Comment
  POM211376  Paeonia californica Carl B. Wolf 1931-3-6 1842 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA501314  Paeonia californica S. Zona, G. A. Allen, A. Liston, L. Rieseberg 1989-2-5 304 Orange San Juan Hot Springs along Ortega Hwy, alt 230m. 230 Comment
  CAS-BOT-BC354349  Pallenis maritima R. E. Riefner, Jr. 2013-1-16 13 -14 Orange City of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach 7 Comment
  RSA731537  Panicum dichotomiflorum subsp. dichotomiflorum R. E. Riefner 2007-9-14 7 -395 Orange City of Anaheim, Santa Ana River bottom near 57-Freeway between Orangewood St. and Chapman Ave. 41 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
  SEINET6655641  Panicum virgatum R. E. Riefner Jr. 2006-10-8 06 -482 Orange City of Irvine, San Diego Creek near 405-Freeway.; 0 49 Comment
  RSA594891  Papaver californicum Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4904 Orange Santa Ana Mountains: San Juan Canyon, south side of CA route 74, 1.2 kilometers SW Lower San Juan Picnic Ground. 390 Comment
  SD181750  Parapholis incurva Valerie Soza, K. Clark,LR. Gross,W. Miller,F. Roberts,G. Wallace 2001-4-4 1119 Orange Anaheim Bay; Seal Beach U.S. Naval Weapons Station, southwestern edge of Seal beach National Wildlife Refuge, alongside dirt road 3 Comment
  IRVC24070  Parkinsonia aculeata Fred M. Roberts 1985-8-23 2175 Orange Mission Viejo; San Diego Fwy. (I-5), 0.9km N Oso Pkwy., on west side. Southern Coastal 121 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
  UCR16077  Paspalum dilatatum N. J. Moriarty 1973-5-26 730526- 01 Orange South Coast, Huntington Beach, vacant lot at the corner of Beach Blvd. and Memphis Avenue 15 Comment
  UCR174227  Paspalum dilatatum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33031 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-BC259734  Paspalum distichum Le Roy Abrams 1901-6-12 1762 Orange Near Westminster Comment
  POM48017  Paspalum distichum I. M. Johnston 1924-8-29 s.n. Orange 1 mi. N of Los Alamitos. Comment
  RSA765876  Paspalum distichum R. E. Riefner Jr. 2005-7-9 05 -544 Orange City of Mission Viejo, Oso Creek, ca. 0.5 mi N of Paseo De Colinas on Camino Capistrano. 86 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
  UC455153  Paspalum distichum I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  RSA766072  Paspalum pubiflorum R. E. Riefner Jr. 2009-10-10 09 -222 Orange City of Yorba Linda, Santa Ana Canyon, N bank of Santa Ana River, E of Weir Canyon Rd., vicinity of La Palma Ave. and Mercado del Rio. 107 Comment
  OBI74913  Paspalum vaginatum R. E. Riefner, Jr. and K. Campbell, K. Campbell 2008-8-31 08 -267 Orange City of Irvine, tidal portion of San Diego crk, immediately E of Hwy 73 overpass 1 Comment
  RSA0050323  Paspalum vaginatum R. E. Riefner Jr. 2012-10-21 12 -523 Orange City of Newport Beach, south of Poppy Street/Ocean Blvd, creek at base of stairs, Little Corona Beach. 7 Comment
  RSA733054  Paspalum vaginatum R. E. Riefner 2007-7-8 07 -304 Orange City of Laguna Niguel, Aliso Creek, Alica Pwky. at Park Way. 46 Comment
  RSA733137  Paspalum vaginatum R. E. Riefner 2008-1-13 8 -9 Orange City of Newport Beach, San Diego Creek near Hwy. 73 overpass, E of Jamboree Rd. 6 Comment
  RSA733143  Paspalum vaginatum R. E. Riefner 2007-10-26 7 -461 Orange City of Newport Beach, North Star Beach, north shore of Newport Bay near North Star Ln. 9 Comment
  UCR204165  Paspalum vaginatum R. E. Riefner Jr. 2007-7-8 07- 304 Orange City of Laguna Niguel, Aliso Creek, Alicia Pkwy at Skate Park Way 46 Comment
Read comments Jul 30 2010
  UCR204908  Paspalum vaginatum R. E. Riefner Jr. 2007-10-26 07- 461 Orange South Coast, city of Newport Beach, North Star Beach, north shore of Newport Bay near North Star Lane 9 Comment
  UCR192629  Pectocarya linearis A. C. Sanders, Fred M. Roberts 2008-3-25 34525 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  POM14189  Pedicularis densiflora Wm. M. Pierce 1922-4-14 s.n. Orange Santa Ana Canyon. Comment
  UCR196332  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange Southern Coastal, UCI Arboretum 15 Comment
  IRVC20322  Pellaea andromedifolia var. andromedifolia Fred M. Roberts 1983-1-7 850 Orange Upper Park Canyon, west flank of Temple Hill, 1.7km NE Thurstn School; 1.7km SE BM 104, Laguna Beach 230 Comment
  RSA184141  Pellaea andromedifolia var. andromedifolia I. L. Wiggins 1966-2-4 20420 Orange Trabuco Canyon, about 1/2 mi. above canyon mouth Comment
  RSA301973  Pellaea mucronata var. mucronata J. R. Shevock 1970-12-20 571 Orange Silverado Canyon 579 Comment
  CDA2269  Pennisetum clandestinum D. G. Kelch 2006-12-9 6 .566 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA0093405  Pennisetum clandestinum D. E. Bramlet 2009-11-20 4416 Orange South Coast: San Diego Creek between Irvine and Newport Back Bay. 4 Comment
  RSA758899  Pennisetum clandestinum A. C. Sanders, T. B. Salvato 2008-5-13 35350 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
  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
  UCR170142  Pennisetum setaceum Jeffrey Ross, R. Zaka, P. Ross 1998-5-2 33 Orange Irvine, San Joaquin Wildlife Reserve, San Diego Creek; highly disturbed wash, sandy with high seasonal variation in water level, c. 5 mi from Pacific Ocean 6 Comment
  UCR215288  Pennisetum setaceum Fred M. Roberts, D. E. Bramlet 2008-5-13 6957 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  NY601616  Penstemon heterophyllus var. australis F. W. Pennell 1949-6-29 26804 Orange Ortega Highway, above San Juan Capistrano. Comment
  UC284869  Penstemon heterophyllus var. australis P. A. Munz 1923-9-7 7748 Orange Santiago Peak Santa Ana Mts., , near summit (near the summit) 1706 Comment
  UCSB52393  Penstemon spectabilis Roberts, Fred 1982-7-20 Orange Santa Ana Mtns.: 1.8 km by road NE Falcon Group Camp; 2.9 km E Los Pinos Peak 1082 Comment
  POM50883  Pentachaeta aurea L. R. Abrams 1901-06 1787 Orange San Joaquin Hills Comment
  UCR222664  Pentachaeta aurea subsp. allenii R. E. Riefner Jr. 2008-6-25 08- 169 Orange Peninsular Range; Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Lakeview SCE Road 480 Comment
  RSA0059338  Pentagramma triangularis L. M. Booth 1932-5-19 1066 Orange Newport Bay Comment
  RSA0060233  Pentagramma triangularis Fred M. Roberts, Laura Cohen 2000-3-24 5272 Orange Rancho Mission Viejo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  RSA687405  Pentagramma triangularis subsp. triangularis Norman C. Cooper 1949-5-1 3951 Orange San Juan Canyon 610 Comment
  RSA743385  Pentagramma triangularis subsp. viscosa Fred M. Roberts 2008-5-27 7009 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  LA204537  Peritoma arborea A. H. Lange; 1951-4-26 sn Orange Balboa Comment
  SFV16195  Peritoma arborea R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 39 Orange Newport Beach, Upper Newport Bay on Back Bay Drive about 0.5 miles north of Shellmaker Island. Mesic roadside at base of coastal bluff adjacent to semi-disturbed coastal sage scrub area. Comment
  SEINET1906996  Persea borbonia R. W. Scora 1997-1 5145 Orange Scora's Persea Species Collection, Field 43, South Coast Resertch and Extension Center (Field Station), Irvine. 21 Comment
  CAS-BOT-BC294750  Phacelia R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 716 Orange Chino Hills State Park. South Ridge Road west of San Juan Hill, going west from Equestrian Staging Area 441 Comment
  RSA539410  Phacelia brachyloba Fred M. Roberts, Carol A. Roberts 1988-6-9 4089 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, south slope. 0.4km SW summit. 1518 Comment
  RSA552940  Phacelia brachyloba Fred M. Roberts, Carol A. Roberts 1989-4-20 4297 Orange Santa Ana Mtns: Upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5km SE Los Pinos Peak. 980 Comment
  RSA595  Phacelia cicutaria var. hispida J. T. Howell 1927-6-5 35 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA631397  Phacelia cicutaria var. hispida Valerie L. Soza, LeRoy Gross 1999-6-7 474 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  SBBG6171  Phacelia cicutaria var. hispida J. M. Tucker 1941-5-30 257 Orange Ortega Hwy (St Hwy 74), 2 to 3 mi E of W boundary of Cleveland Nat Forest Comment
  UCSB34159  Phacelia cicutaria var. hispida Nilsen, Erik; Roberts, Fred; Roberts, D. 1980-5-2 Orange Along Hwy. 74, 0.2 km. SSW of the entrance to the Lower San Juan Picnic area, San Juan Mountains 390 Comment
  RSA647939  Phacelia distans Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 39 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 244 Comment
  SD72104  Phacelia distans John Thomas Howell 1928-1-15 3277 Orange Gypsum Station on side of Santa Ana CaA'on. 152 Comment
  RSA16479  Phacelia minor Percy C. Everett 1935-6-19 7228 Orange Main Divide Motorway, Bear Spring. 1220 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
  HSC13724  Phacelia parryi S. M. Clapp 1966-4-7 15 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  RSA725475  Phacelia parryi Fred M. Roberts, Megan Lulow 2007-7-30 6543 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  RSA758890  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-4-22 34990 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 213 Comment
  UCR224034  Phacelia parryi Justin M. Wood 2010-3-31 1449 Orange Santa Ana Canyon, Santa Ana River floodplain, 0.25 mi north of Coal Canyon wildlife corridor, west of Green River Golf Course on bluff south of the river 122 Comment
  HSC13728  Phacelia parryi J. J. Wagoner 1965-4-11 16 Orange 5 mi. N of Modjeska Canyon near Irvine Lake off of Irvine Rd. 152 Comment
  RSA759251  Phacelia parryi Robt. Allen, Lori Whalen 2008-7-5 s.n. Orange Dry foothills along a SW-facing ridge, slong Santiago Truck Trail, 0.5 air miles E of USPF Forest Gate at Modjeska Grade Road. Comment
  CAS-BOT-BC144973  Phacelia ramosissima var. austrolitoralis Carl B. Wolf 1932-6-13 3716 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  RSA539412  Phacelia suaveolens subsp. keckii Fred M. Roberts, C. A. Roberts 1988-6-9 4086 Orange Santa Ana Mtns.: Modjeska Peak, 0.9km SW summit. 1542 Comment
Read comments Jul 21 2018
  RSA759151  Phacelia suaveolens subsp. keckii Robt. Allen, Lori Whalen 2008-7-5 s.n. Orange Along Harding Canyon Truck Trail, on the ridgeline south of upper Harding Canyon. 1.55 air miles SW of Maple Springs Saddle - Harding Canyon USFS gate, 0.71 air miles due W of BM 5015 on Main Divide Road, W arm of Modjeska Peak., Survey point no. 38 1298 Comment
  UC1543020  Phalaris Donald G. Nelson 1935-4-14 290 Orange Newport Beach edge of dry mesa facing Newport Bay and the ocean (along main coast highway); facing Newport Bay, Newport Beach 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
  CAS-BOT-BC259032  Phalaris lemmonii D. E. Bramlet 2003-6-8 3461 Orange South Coast: Fairview Park in Costa Mesa, 152 m west of Canyon School and 396 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  RSA610233  Phalaris lemmonii Fred M. Roberts, T. Bomkamp, R. Riefner 1996-4-19 4964 Orange Costa Mesa; Fairview Park, 0.1km W Canyon School 24 Comment
  UCR150384  Phalaris lemmonii D. E. Bramlet 1999-5-16 2764 Orange South Coast, Fairview Park, City of Costa Mesa. Some 336 m N of the intersection of Wilson and Canyon Dr. and 152 m west of the Canyon School, on a mesa overlooking the Santa Ana River 43 Comment
  IRVC1779  Phalaris minor C. Thompson 1965-5-4 s.n. Orange UC Irvine; General Services Bldg; Jamboree Road. Southern Coastal Comment
  IRVC22183  Phalaris minor Fred M. Roberts 1985-4-11 1642 Orange Dana Point Headlands; Weyerhaeuser Horticultural Research Station property. Southern Coastal 61 Comment
  UCR170307  Phalaris minor J. B. Anderson 1966-4-18 597 Orange South Coast, MacArthur Blvd. near Red Hill Road [between Santa Ana and Irvine, NE of John Wayne Airport] 9 Comment
  SEINET10876692  Philodendron Thomas B. Croat 2003-4-5 Croat 87598 Orange Cultivated plants from Rick M. Cirino, Cosa Mesa, California. Originally from Brazil? Comment
  UC536905  Phyla lanceolata Lawrence M. Booth 1932-7-1 1238 Orange Anaheim Meadows Comment
  CLARK-A1528-4427  Phyllospadix torreyi John C. Roos 1960-8-27 Orange Dana Point Comment
  RSA682950  Phyllospadix torreyi E. Yale Dawson 1957-11-23 17817 Orange Corona del Mar, Orange, Co. Comment
  UCR90501  Phyllospadix torreyi F. M. Reed 1933-6-11 7858 Orange South Coast, Reef at San Juan Capistrano Comment
Read comments May 1 2011
  RSA33542  Phyllospadix torreyi N. C. Cooper 1942-11-8 2019 Orange Laguna Beach. Comment
  IRVC874  Picris echioides R. Hobson 1965-4-10 Orange Santa Ana Heights, 2431 Mesa Dr. Southern Coastal Comment
  RSA17043  Picris echioides C. B. Wolf 1936-1-13 7696 Orange Santa Ana Canyon, Rancho Santa Ana, along R. R. right of way east of Ranch Houses. 137 Comment
  UC1543146  Pilularia americana Donald G. Nelson 1935-4-15 301 Orange near Costa Mesa (on rd from Garden Grove to Costa Mesa, <rd.> converging toward main hwy. from Santa Ana) Comment
  CAS-BOT-BC73334  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange So. slope of main ridge, saddle n.w. of Sugarloaf Pk. (Pleasants Pk) 1 3/10 mi. so. of summit of Skyline Drive, 1158 Comment
  IRVC20664  Pinus attenuata A. S. Boughey 1965-3-5 35 Orange Live Oak Canyon. Santa Ana Mountains Comment
Read comments Mar 27 2014
  NY34650  Pinus attenuata C. B. Wolf 1934-12-21 6259 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  OBI6107  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange S slope of main ridge, saddle NW of Sugarload Pk (Pleasants pk) 1-3/10 mi S of summit of Skyline Dr, Santa Ana Mts 1158 Comment
  RSA23668  Pinus attenuata C. B. Wolf 1939-1-20 9484 Orange Santa Ana Mts., N.W. of Pleasant's Pk. (Sugarloaf) along Main Divide Motorway; 1 3/10 mi. So. of summit, Skyline Dr. Ft. 1159 Comment
  UC1713694  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange 1.3 mi s summit of Skyline Drive (saddle nw of Sugarloaf Pk. (Pleasants Pk.), s slope of main ridge); Santa Ana Mountains 1158 Comment
  UC532152  Pinus attenuata Carl B. Wolf 1934-12-21 6260 Orange ne Sugarloaf Peak (Pleasants Pk.) (along Main St. Trail); Santa Ana Mts. Comment
  MACF021903  Pinus attenuata Dale Schneeberger 1977-5-18 48 Orange 2 miles south of Pleasants Peak, Santa Ana Mtns. 1097 Comment
  MACF019839  Pinus coulteri Clancy T. O'Dowd 1975-5-21 5 Orange Santiago Canyon Rd. Cleveland National Forest 731 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
  RSA758896  Piptatherum miliaceum A. C. Sanders, T. B. Salvato 2008-5-13 35352 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
  RSA450840  Piptatherum miliaceum J. Anderson 1966-6-24 680 Orange San Joaquin Hills; Bonita Canyon Reservoir in vicinity of Culver Rd. Comment
  CDA2639  Pistia stratiotes M. Nolan 1981-5-19 Orange Central Park Lake, Huntington Beach. 0 Comment
  UCR234436  Pittosporum undulatum Dick Newell, Judy Booth 2012-4-29 247 Orange South Coastal Plain, Aliso Creek, 0.25 mi. north of Pacific Coast Highway 9 Comment
  RSA716096  Plagiobothrys acanthocarpus Fred M. Roberts, Melissa Ervin 2001-3-21 5385 Orange San Joaquin Hills: Upper San Canyon, c..a. 2km SE French Hill, within the Shady Cyn. Development. 98 Comment
  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
  RSA682599  Plagiobothrys collinus var. californicus Scott D. White, Amanda Duchardt 2003-3-27 8863 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA542654  Plagiobothrys nothofulvus Fred M. Roberts 1988-4-10 3903 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  RSA680531  Plagiobothrys nothofulvus Scott D. White 2003-3-21 8805 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA682594  Plagiobothrys nothofulvus Scott D. White, Amanda Duchardt 2003-3-27 8858 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA683082  Plagiobothrys nothofulvus Scott D. White, Amanda Duchardt 2003-5-1 9157 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  UCR146230  Plantago coronopus Valerie Soza, Et al. 2001-4-4 1121 a Orange Coastal Plains & Basins; Los Angeles Basin region, Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  JEPS6394  Plantago erecta Lawrence M. Booth 1932-5-18 1055 Orange Newport Bay Comment
  JEPS6417  Plantago erecta Alice King 1908-3-14 Orange near Santa Ana; Anaheim Plains Comment
  RSA749286  Plantago erecta Fred M. Roberts, Linda Farley 2008-3-28 6834 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  CLARK-A1528-3428  Plantago indica John C. Roos 1957-7-29 6657 Orange Newport Beach Comment
  RSA412558  Plantago lanceolata Albert J. Perkins 1920-6-24 s.n. Orange Santa Ana. Comment
  RSA226632  Plantago major Christopher Davidson, Gerald L. Benny 1971-6-15 1546 Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  SEINET4085748  Plantago maritima O. M. Clark 1947-1 14382 Orange Island in Crescent Bay. Comment
  POM47661  Plantago ovata var. insularis F. W. Peirson 1924-5-31 4668 Orange 5 miles southeast of Laguna Beach. Comment
  POM128994  Plantago rhodosperma Anstruther Davidson 1908-5-1 1791 Orange Corona del Mar Comment
  RSA542455  Plantago rhodosperma Fred M. Roberts, Karlin G. Marsh 1988-4-25 3931 Orange San Joaquin Hills: East flank Pelican Hill, 0.9 kilometer SE summit. 120 Comment
  RSA424280  Plantago subnuda Anstruther Davidson 1908-5-1 1791 Orange Corona del Mar Comment
  RSA749040  Platanus X acerifolia A. C. Sanders, Fred M. Roberts 2008-8-7 35976 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UCR195018  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-8-7 35977 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  UCSB12591  Platystemon californicus Breedlove, Dennis 1962-3-9 Orange 4.4 miles east of San Juan Capistrano; on State 74 112 Comment
  RSA751480  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 -308 Orange City of Laguna Beach, ocean bluff vicinity of West St. and Pacific Coast Highway. 4 Comment
  RSA765879  Plecostachys serpyllifolia R. E. Riefner Jr. 2005-9-9 05 -654 Orange City of Lake Forest, Aliso Creek, S side of Portola Pkwy. and W of El Toro Rd. 225 Comment
  RSA766076  Plecostachys serpyllifolia R. E. Riefner Jr. 2004-12-30 04 -681 Orange City of Laguna Beach, vicinity of West St. and Pacific Coast Hwy. 4 Comment
  RSA232234  Pluchea odorata James Henrickson 1970-7-24 4986 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA528043  Pluchea odorata A. C. Sanders 1990-10-6 10185 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  RSA542591  Pluchea odorata Fred M. Roberts, Doug Willick 1988-9-16 4138 Orange Peralata Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.0 kilmeter N Robbers Peak. 180 Comment
  POM201633  Pluchea sericea L. M. Booth 835 Orange Santa Ana Canyon. Comment
  RSA5323  Pluchea sericea B. D. Stark 1932-12-30 4472 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA931  Pluchea sericea J. T. Howell 1927-7-24 464 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  UCR162343  Plumbago capensis Robert DeRuff 1985-1 250 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, along the path from Mariners Drive to North Star Beach 30 Comment
  IRVC1789  Poa annua I. L. Wiggins 1966-2-1 20405 Orange California State College, Fullerton; orange grove just E of Letters and Science Building. Southern Coastal Comment
  UCR99859  Poa annua Scott D. White 1993-3-5 1129 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  IRVC8445  Poa scabrella J. B. Anderson 1966-5-3 636 Orange Silverado Cyn; Modjeska Pk Rd Santa Ana Mtns 1372 Comment
  UCR170301  Poa secunda C. W. Sexton 1973-3-29 s.n. Orange South Coast, Newport Beach; Upper Newport Bay, hillside beside Back Bay Drive 15 Comment
  RSA629045  Poa secunda subsp. secunda Valerie L. Soza, LeRoy Gross 1999-6-10 527 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1554 Comment
  SEINET3086485 Image available Polycarpon tetraphyllum J. Harry Lehr 1975-5-10 1556 Orange Santa Ana Street W. of State College Blvd. Anaheim. Comment
  UCSB50635  Polygala californica Roberts, Fred 1982-7-9 Orange SANTA ANA MTNS.: Upper Hot Springs Canyon, 0.1km SW Falcon Group Camp: 2.0km SE Los Pinos Peak 327 Comment
  UCR158809  Polygala cornuta subsp. fishiae A. C. Sanders, Mark A. Elvin 2005-9-2 31611 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
  UCR231203  Polygala cornuta subsp. fishiae A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39941 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  CAS-BOT-BC167819  Polygala cornuta var. fishiae John Thomas Howell 1927-7-3 2640 Orange Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
  RSA698416  Polygala cornuta var. fishiae Unspecified 1934-05 s.n. Orange Ladd Canyon. Comment
  SD152784  Polygala cornuta var. fishiae Steve Boyd 1992-5-20 7478 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area, Western edge in Lucas Canyon, along foot trail upstream from end of old road grade to upper homestead (corrugated steel bldg) 351 Comment
  UC2042132  Polygala cornuta var. fishiae R. F. Thorne with E. W. Lathrop, W. Wisura 1977-7-8 49615 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station, lateral ravine tributary to San Juan Canyon. Comment
  CAS-BOT-BC110520  Polygonum Mrs. H. C. Cantelow 1933-7-9 431 Orange Coast near San Juan de Capistrano. Comment
  POM201772  Polygonum argyrocoleon L. M. Booth 1932-7-25 s.n. Orange Santa Ana River 2 miles from ocean. Comment
  RSA0054921  Polygonum aviculare Keith E. Hoffmaster 1926-12-18 490 Orange Santa Ana. Comment
  RSA666101  Polygonum aviculare subsp. aviculare Fred M. Roberts, Michelle Lee 2001-6-4 5485 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. (Canada Gobernadora. 226 Comment
  UC729963  Polygonum hydropiperoides Carl B. Wolf 1932-6-13 3719 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  RSA683226  Polygonum lapathifolium Scott D. White, Matt Carlton 2003-11-20 9869 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 24 Comment
  RSA731907  Polygonum lapathifolium Fred M. Roberts, Sandy Leatherman 2007-11-27 6672 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  RSA698499  Polygonum persicaria J. R. Bruff 1930-10-5 4 Orange Santa Ana River Bed. Comment
  RSA594872  Polygonum punctatum Fred M. Roberts, Wayne Ferren, David Bramlet 1991-11-29 4827 Orange Santa Ana Canyon: Featherly Regional Park, Santa Ana River, Horseshoe Bend, c.a. 3.8 km S San Juan Hill. 102 Comment
  IRVC20324  Polypodium californicum Fred M. Roberts 1982-12-10 848 Orange Laguna Beach: Upper Park Canyon, west flank of Temple Hill, 1.8km NEof Thurston School, 0.8km WNW of Top of the World School. Southern Coastal 240 Comment
  IRVC3042  Polypodium californicum G. Howard 1965-3-31 HS0571 Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA689928  Polypodium californicum Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  RSA689945  Polypodium californicum M. B. Dunkle 1935-2-23 4340 Orange Dana Point. 9 Comment
  RSA85017  Polypodium californicum F. W. Peirson 1925-4-11 5729 Orange slope above mill, in Silverado Canyon, Santa Ana Mountains 914 Comment
  UCSB62512  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Laguna Beach, Aliso Canyon, ca. 100 yards up canyon from Aliso Beach parking area, Hwy 101. 45 Comment
  UCSB62516  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Santa Ana Mtns., San Juan Canyon, 2nd ravine W of entrance to lower San Juan Camp, just S of Hwy 74. 426 Comment
  RSA734973  Polypogon interruptus A. C. Sanders, Fred M. Roberts 2008-6-17 35467 Orange Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA0058185  Polypogon monspeliensis Fred M. Roberts 2014-4-21 7871 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  RSA0045355  Polypogon monspeliensis Keith E. Hoffmaster 1935-3-28 119 Orange West of Costa Mesa. Comment
  POM202525  Polypogon viridis L. M. Booth 1932-6-7 1163 Orange Newport Lagoon. Comment
  RSA756311  Polypogon viridis A. C. Sanders, Fred M. Roberts 2008-7-3 35703 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA708364  Polystichum imbricans subsp. curtum Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6228 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  IRVC28638  Populus balsamifera subsp. trichocarpa Mark A. Elvin, A. C. Sanders 2005-9-2 4493 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  UCR174187  Populus balsamifera subsp. trichocarpa A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33023 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA735357  Populus fremontii Keith E. Hoffmaster 1934-4-8 156 Orange Santa Ana Mts. Comment
  RSA581439  Populus trichocarpa Fred M. Roberts Jr., Gordon Marsh 1989-5-12 4358 Orange Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.0 km WSW Laurel Springs. 436 Comment
  RSA603349  Populus trichocarpa Scott D. White, B. Leatherman 1997-6-12 5327 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi. E of I-15 / Hwy 74 jtn. 46 Comment
  SD144030  Porophyllum gracile Scott D. White 1997-3-28 4841 Orange Santa Ana Mountains, above Modjeska Canyon. 424 Comment
  RSA671152  Porophyllum ruderale Ralph Guerrero 2000-10-24 10 -2000 Orange Along roadside of vegetable crop field, Seal Beach Naval Weapons Station, Seal Beach. Comment
  CAS-BOT-BC445243  Portulaca oleracea Ira L. Wiggins 1965-11-3 20313 Orange East side of California State College campus, between State College Blvd and Placentia Avenue, Fullerton. Comment
  SD233356  Prunus avium R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49828 Orange Santa Ana Mountains; Trabuco Canyon, ca. 8 km east of Trabuco Oaks. Deserted orchard. Comment
  UCR106310  Pseudognaphalium biolettii B. G. Pitzer, M. Georgiady 1997-4-5 3096 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
  UCR222874  Pseudognaphalium biolettii T. B. Salvato 2010-10-27 5134 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  RSA747708  Pseudognaphalium californicum Fred M. Roberts 2008-5-16 6986 Orange Dana Point: Dana Point Hradland, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  OBI74762  Pseudognaphalium leucocephalum Unknown 2007-2-13 Jul- 55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek 31 Comment
Read comments Dec 14 2012
  SD187363  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-3-21 07 157 Orange San Juan Capistrano, vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek. 31 Comment
  RSA0089199  Pseudognaphalium luteoalbum Fred M. Roberts 2014-4-21 7856 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  UCR194995  Pseudognaphalium luteoalbum A. C. Sanders, Fred M. Roberts 2008-8-7 36002 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 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
  IRVC1817  Pseudosasa japonica V. Riley 1967-2-21 Orange Balboa Island. southern coastal 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
  IRVC2822  Pseudotsuga macrocarpa A. S. Boughey 1965-3-16 75 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  MACF020379  Pseudotsuga macrocarpa B. Thomas 1967-12-22 57 - Orange Santiago Park; Santa Ana Mountains 1523 Comment
  RSA716772  Pseudotsuga macrocarpa Fred M. Roberts, Michelle Balk, Robert Allen, Megan Enright 2004-7-18 6256 Orange Santa Ana Mtns.: Upper Trabuco Cyn. along Trabuco Cyn. Trail, 1.3km NE Los Pinos Pk. and c.a. 0.25km by trail from Main Divide Truck Trail. 1245 Comment
  UC1952549  Psilocarphus brevissimus D. Bramlet 1995-4-29 2401 Orange Fairview Park, City of costa Mesa. The site is located some 366m n of the intersection of wilson and Canyon Dr. and 152m W of the Canyon School, on a mesa overlooking the Santa Ana River. Comment
  RSA799621  Psilocarphus brevissimus var. brevissimus Justin M. Wood 2011-4-12 3653 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA0088602  Psilotum nudum R. E. Riefner Jr. 2015-11-22 15 -453 Orange City of Costa Mesa, E side of Orange County Fairground, Lot #A-5, W of Newport Blvd. and N of Fair Drive. 32 Comment
  UC2046880  Psilotum nudum R. E. Riefner Jr. 2015-11-22 15 -453 Orange City of Costa Mesa, E side of Orange County Fairground, Lot #A-5, W of Newport Blvd. and N of Fair Drive. Comment
  UCR269240  Psilotum nudum R. E. Riefner Jr. 2015-11-22 15- 453 Orange South Coast, city of Costa Mesa, east side of Orange County Fairground, Lot #A-5, west of Newport Blvd. and north of Fair Drive 32 Comment
  IRVC27016  Psilotum nudum A. C. Sanders, Mark A. Elvin 2003-11-9 27356 Orange Irvine: UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. Southern Coastal 15 Comment
  RSA790025  Psoralea macrostachya Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49564 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  IRVC3171  Pteridium aquilinum var. pubescens T. Baskin 1965-4-29 Orange Doheney St. Pk. Dana Point or Capistrano Beach Comment
  POM280432A  Pterostegia drymarioides Lyman Benson 1932-3-26 3196 Orange Dana Point. 61 Comment
  POM8744  Pterostegia drymarioides P. A. Munz, R. D. Harwood 1920-4-20 3724 Orange Santa Ana Mountains: Silverado Canon 549 Comment
  RSA698490  Pterostegia drymarioides R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA749999  Pterostegia drymarioides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35324 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  UC1608000  Pterostegia drymarioides Donald G. Nelson 1935-4-6 207 Orange e. San Juan Capistrano (& just s. of boundary of Cleveland Nat'l Forest in Santa Ana Mts., in canyon branching n. from summer ranger station on main hwy. up San Juan Canyon); Santa Ana Mts. Comment
  UC635044  Pterostegia drymarioides H. L. Mason 1926-4-25 2910 Orange coast 5 mi. s. Laguna Comment
  UCR194553  Pterostegia drymarioides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35324 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  UCSB43273  Pterostegia drymarioides Fletcher, Martin 1980-3-29 Orange 0.5 miles west of Drakes Beach. Comment
  CAS-BOT-BC362141  Pulicaria paludosa R. G. Ahlefeld 1959-7-15 s.n. Orange Santa Ana Canyon, e. of Fullerton Comment
  CDA23087  Pulicaria paludosa Mary H. White 2006-9-23 923061 Orange Southern Coastal; San Joaquin Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east Highway 73. Comment
  JEPS35293  Pulicaria paludosa R. L. Pope 1963-9-23 Orange approx 0.75 mi above Yorba Linda Bridge; Sanat Ana Canyon Comment
  UCD148359  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange North facing slope of the Santa Ana Canyon, 0.1 mile south of Riverside Freeway to Anaheim. Around 2 miles west of the Riverside county line in Orange County. 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
  RSA539419  Pulicaria paludosa Fred M. Roberts, Doug Willick 1988-9-16 4137 Orange Peralata Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.0 kilmeter N Robbers Peak. 180 Comment
  RSA697032  Quercus agrifolia Minor Warne 1934-5-10 s.n. Orange Santa Ana Mountains. Comment
  UCR237927  Quercus agrifolia var. agrifolia Mark A. Elvin 2003-2-2 2253 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  CAS-BOT-BC86441  Quercus berberidifolia P. C. Everett; E. R. Johnson 1937-11-30 9379 Orange Santa Ana Mts., Bold Meadow at head of Claymine Canyon on slopes of Sierra Peak 762 Comment
  CAS-BOT-BC86443  Quercus berberidifolia Le Roy Abrams 1901-6-13 1784 Orange Near Laguna, San Joaquin Hills Comment
  IRVC8572  Quercus berberidifolia A. S. Boughey, Pat Pembrook 1965-6-8 1013 Orange San Juaquin Hills; Los Trancos Cyn; fork at road bottom. Southern Coastal Comment
  RSA663280  Quercus berberidifolia R. E. Riefner Jr. 2000-6-22 20 -572 Orange NCCP North Ranch Policy Plan Area, NE property; along National Forest boundary, at powerline. 756 Comment
  UCR119798  Quercus berberidifolia R. E. Riefner Jr. 2000-3-18 20- 136 Orange Cleveland National Forest. Ridge-top east of Fremont Canyon and west of Hidden Valley 732 Comment
  UCSB58638  Quercus berberidifolia Muller, Cornelius 1953-5-2 Orange Swain Canyon, lower end, Santa Catalina Island 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
  RSA649690  Quercus engelmannii R. E. Riefner Jr. 2000-6-1 20 -453 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  IRVC16573  Quercus kelloggii Gordon A. Marsh, Karlin G. Marsh 1978-5-2 s.n. Orange Santa Ana Mtns; Silverado Truck Trail, 7 mi. E of Forest Service gate. Peninsular Ranges 1387 Comment
  SEINET7249074  Quercus suber R. E. Riefner Jr. 2014-1 14 -89 Orange City of Yorba Linda, Yorba Linda Regional Park along East La Palma Ave., W of Yorba Linda Blvd; Parking Low #7. 92 Comment
  RSA598966  Rafinesquia californica Scott D. White 1997-3-28 4838 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  POM7623  Ranunculus hebecarpus P. A. Munz, R. D. Harwood 1920-4-25 3739 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  IRVC1142  Raphanus sativus E. P. Cowper 1965-4-14 Orange Corona del Mar High Sch. Newport Beach Comment
  IRVC1148  Raphanus sativus R. Hobson 1965-4-10 Orange Santa Ana Heights, 2431 Mesa Dr. Southern Coastal Comment
  IRVC1150  Raphanus sativus R. Nesheim 1965-4-10 Orange Bayside Dr. near Balboa Island. Newport Beach Comment
  IRVC1157  Raphanus sativus D. Pfirrmann 1965-4-28 Orange Del Mar and Fair[way] Dr. Costa Mesa Comment
  RSA0023267  Raphanus sativus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49780 Orange Santa Ana Mountains: Trabuco Canyon Comment
  POM261672  Rhamnus californica subsp. californica W. Pequegnat 1941-09 s.n. Orange Silverado Canyon. Comment
Read comments Sep 7 2010
  CAS-BOT-BC56027  Rhamnus ilicifolia P. C. Everett 1936-9-19 8269 Orange Santa Ana Mts., Silverado Canyon, in vicinity of Forest Service Gate at base of road 762 Comment
  CAS-BOT-BC56037  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1838 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope Santa Ana Mts. 457 Comment
  RSA391107  Rhamnus ilicifolia H. L. Bauer 1929-4-20 s.n. Orange Trabuco Canon. Comment
  RSA734856  Rhamnus ilicifolia A. C. Sanders, Mitch Provance 2008-5-20 35403 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  SD247724  Rhamnus ilicifolia R. F. Thorne, E. W. Lathrop, W. Wisura. 1977-7-8 49360 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. Comment
  UC592829  Rhamnus ilicifolia Carl B. Wolf and E. R. Johnson 1933-11-3 Orange Silverado Canyon, base of Silverado Motorway Santa Ana Mts. 731 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
  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
  UCSB48075  Rhamnus ilicifolia Roberts, Fred 1981-4-11 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.4km ENE San Juan Guard Station; 0.3km W Bench Mark 1100 315 Comment
  CAS-BOT-BC167876  Rhus integrifolia Carl B. Wolf 1932-3-8 2685 Orange 1/2 mi. No. of Corona Del Mar. Borders of Newport Bay 7 Comment
  IRVC68  Rhus integrifolia A. S. Boughey, P. Pembrook 1965-7-16 1011 Orange Los Trancos Canyon, near spring, ; chaparral. San Joaquin Hills Comment
  LA62813  Rhus integrifolia Carl Epling; Harlan Lewis 1940-4-21 sn Orange hills 6 mi. E of San Juan Capistrano Comment
  POM201922  Rhus integrifolia L. M. Booth 1932-5-26 1119 Orange Newport Bay. Comment
  RSA734695  Rhus lancea A. C. Sanders, Fred M. Roberts 2008-6-17 35500 Orange Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UCR131882  Rhus laurina J. Mallory, V. McCoy 1995-7-3 6454- 97 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
  IRVC83  Rhus ovata Hayden R. Williams 1966-6-12 HRW 578 Orange Costa Mesa; Orange Coast College Campus; Native Garden. Southern Coastal Comment
  RSA658196  Rhus ovata T. A. Daubert 1991-5-19 645 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  UCD116944  Rhus ovata P. B. Kennedy 1925-1-12 3 Orange Irvine Range. Comment
  SEINET10494684  Rhus ovata Charlene A. Bennett 1976-7-21 Bennett 437 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  CAS-BOT-BC173127  Ribes indecorum C. B. Wolf 1931-3-6 1833 Orange 1 1/2 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  HSC25244  Ribes indecorum Richard Spjut 1972-2-22 2224 Orange Coastal strand, near S Laguna Beach along Hwy. 1 0 Comment
  SBBG28484  Ribes indecorum R. J. Weatherby 1950-2-25 1027 Orange Harding Cyn 579 Comment
  UC484197  Ribes indecorum B. D. Stark 1930-2-21 1475 Orange Black Star Creek 457 Comment
  UC484236 Image available Ribes indecorum C. B. Wolf 1931-3-6 1833 Orange 1 1/2 mi below Trabuco Oaks (Trabuco Canyon Road, w slope of mts.); Santa Ana Mts. 304 Comment
  UCR223417  Ribes indecorum Dick Newell, Don Millar 2011-2-8 050 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, top of Agua Chinon Canyon at head of Limestone Canyon 387 Comment
  CAS-BOT-BC168941  Ribes malvaceum B. D. Stark 1932-2-22 2662 Orange Rancho Santa Ana, Santa Ana Canyon, in canyon west of Roundtop Peak 457 Comment
  CAS-BOT-BC168942  Ribes malvaceum B. D. Stark 1932-12-30 4456 Orange Rancho Santa Ana, 1/4 mi. W. of Roundtop Peak 457 Comment
  CAS-BOT-BC402201  Ribes malvaceum R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UC1127272  Ribes malvaceum J. B. Spring 1931-4-6 29 Orange n Trabujo Canyon; Corona Quadrangle 243 Comment
  RSA787498  Ribes malvaceum var. viridifolium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UC2042139  Ribes malvaceum var. viridifolium R. F. Thorne and C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  UCSB47637  Ribes malvaceum var. viridifolium Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail; 0.2km west of Trabuco Peak; Santa Ana Mtns 1347 Comment
  RSA354  Ribes speciosum J. T. Howell 1927-6-24 205 Orange Aliso Canyon, Rancho Santa Ana. 274 Comment
  RSA734883  Ribes speciosum Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  OBI70101  Ricinus communis D. G. Kelch 2006-12-9 6 .56 Orange Irvine. University dr along tidal Crk just E of I-73. 9 Comment
  RSA226636  Ricinus communis Christopher Davidson, G. Benny 1971-6-15 1543 Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  RSA0014069  Romneya coulteri Fred M. Roberts 2008-5-30 7019 Orange Lomas de Santiago: Santiago Creek wash, south of Irvine Mesa, 1.5 km SE Silverado Sch., Irvine Ranch Conservancy. 326 Comment
  RSA17464  Romneya coulteri Percy C. Everett 1936-9-19 8270 Orange Santa Ana Moutains, Silverado Canyon. In vicinity of forest service road gate. 762 Comment
  RSA658201  Romneya coulteri T. A. Daubert 1991-5-19 656 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island. Comment
  SD234972  Romneya coulteri A. C. Sanders, T. B. Salvato 2008-5-13 35373 Orange Peninsular Range, Santa Ana Mountains: Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence (El Toro 7.5' Q) 366 Comment
  UC1090422  Romneya coulteri Milo S. Baker 1958-5-15 13266 Orange on road to City Creek Comment
  UCR16445  Romneya coulteri K. T. Ingram 1976-5-2 s.n. Orange Peninsular Range; Santa Ana Mtns., Ortega Highway, Route 74, 12 mi. east of Hwy 405 Comment
  UCR193373  Romneya coulteri A. C. Sanders, T. B. Salvato 2008-5-13 35373 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC92179  Romneya coulteri var. coulteri John Thomas Howell 1927-7-24 2833 Orange Floor of Claymine Canon [Canyon], north Santa Ana Mountains. 152 Comment
  CAS-BOT-BC92180  Romneya coulteri var. coulteri Helen D. Geis 1902-5-1 s.n. Orange Santa Ana River Canon [Canyon]. Comment
  RSA0014062  Romneya trichocalyx Fred M. Roberts 2008-5-30 7017 Orange Lomas de Santiago: Santiago Creek wash, south of Irvine Mesa, 1.5 km SE Silverado Sch., Irvine Ranch Conservancy. 326 Comment
  CAS-BOT-BC147387  Rosa californica John Thomas Howell 1927-6-6 2445 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  POM201872  Rosa californica L. M. Booth 1932-6-7 1161 Orange Newport Lagoon. Comment
  RSA375  Rosa californica J. T. Howell 1927-6-6 s.n. Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA734908  Rosa californica A. C. Sanders, Fred M. Roberts 2008-6-17 35481 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA0045579  Rosa californica R. H. McArthur 1934-4-21 s.n. Orange Limestone Boyscout Camp. Comment
  RSA685927  Rubus ursinus Fred M. Roberts 2003-3-27 5626 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
  SD255272  Rubus ursinus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49789 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  POM306304  Rumex conglomeratus Henry J. Ramsey, Henry J. Ramsey 1938-6-5 1392 Orange Laguna Beach, Irvine Comment
  RSA5929  Rumex conglomeratus Carl B. Wolf 1932-7-2 3823 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 213 Comment
  CAS-BOT-BC433581  Rumex hymenosepalus Carl B. Wolf 1932-3-15 2712 Orange Lower end of Santa Ana Canyon, 1 mi. W. of Atwood. 76 Comment
  RSA650638  Rumex hymenosepalus Daniel Truong 1991-5-13 32 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  RSA201  Rumex maritimus J. T. Howell 1927-7-15 409 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  UC205909  Rumex maritimus D. L. Crawford 1916-7-26 Orange Laguna Canyon Laguna Beach Region Comment
  RSA0013954  Rumex salicifolius Fred M. Roberts 2008-5-7 6941 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
  RSA610241  Rumex salicifolius Fred M. Roberts, Tony Bomkamp 1997-3-13 4984 Orange Rancho Mission Viejo: Christianitos Canyon near confluence of Gabino Canyon, 5.1km NE Clemente Survey Mark. 85 Comment
  RSA739329  Rumex salicifolius J. Russell Bruff 1931-6-23 s.n. Orange S Fork Santa Ana River Comment
  CAS-BOT-BC433862  Rumex salicifolius John Thomas Howell 1927-7-5 2654 Orange Near Horseshoe Bend, Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  UCR241051  Rumex salicifolius var. denticulatus Robert DeRuff 2012-9-27 550 A Orange South Coast, Upper Newport Bay, upper end of Big Canyon near Jamboree Rd. 14 Comment
  RSA317355  Ruppia maritima James R. Shevock 1974-5-3 3453 Orange Newport Back bay along Back Bay Drive Comment
  UCD92331  Rytidosperma Collector Unknown 1947-9-1 s.n. Orange Poverty Mesa near El Toro. Comment
  RSA728661  Sagina saginoides R. E. Riefner 2003-2-22 03 -124 Orange City of Laguna Beach, Moulton Meadows Park, near Balboa Ave., and Del Mar Ave. Mima Mound Terrain habitat. 261 Comment
  UCR130499  Salicornia bigelovii R. E. Riefner Jr. 2003-8-17 03- 335 Orange South Coast, Costa Mesa, salt marsh along Santa Ana River, west of Talbert Regional Park 11 Comment
  UCR25846  Salicornia bigelovii Wayne R. Ferren 1980-8-27 2329 Orange South Coast, west side of Backbay Drive, c. 1.5 km northeast of Hwy 1, along channel of Newport Backbay, Newport Beach. Comment
  SD257245  Salicornia bigelovii R. E. Riefner Jr. 2003-12-6 03 502 Orange NAD 83; 11S, 0411758E, 3722979N. Costa Mesa, marsh along W side of Santa Ana River, W of 19th Street and Balboa Ave. 9 Comment
  SBBG72640  Salicornia pacifica M. N. Ackley 1928-9-22 418 Orange Sunset Beach 8 Comment
  UCSB36208  Salicornia pacifica Ferren, Wayne 1980-8-27 Orange W side of Backbay Drive ca. 1.5 km. NE of Rt. 1, Newport Backbay, Newport Beach Comment
  SFV1096  Salicornia pacifica A. M. Johnson 1932-9-16 4148 Orange Newport. Edge of salt marsh. Comment
  POM122354  Salicornia virginica Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM201953  Salicornia virginica L. M. Booth 1932-6-9 1182 Orange Newport Bay. Comment
  POM48007  Salicornia virginica I. M. Johnston 1924-8-29 s.n. Orange 4 mi S of Santa Ana. Comment
  POM201876  Salix exigua L. M. Booth 1932-7-19 1281 Orange Bolsas Marsh. Comment
  UCR195013  Salix exigua A. C. Sanders, Fred M. Roberts 2008-8-7 35988 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
  RSA528052  Salix gooddingii A. C. Sanders 1990-10-6 10184 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  RSA759168  Salix gooddingii A. C. Sanders 2008-5-28 35446 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  UCD110999  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  UCR67011  Salix gooddingii A. C. Sanders 1990-10-6 10184 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  RSA0010963  Salix gooddingii Keith E. Hoffmaster 1934-07 107 Orange n. Costa Mesa. CP3. Comment
  RSA0030802  Salix gooddingii C. B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 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
  RSA0034661  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  UC498105  Salix laevigata L. M. Booth Dec. 1932 1380 Orange Newport Beach Comment
Read comments Jun 19 2006
  UCR193034  Salix laevigata A. C. Sanders, Mitch Provance 2008-5-20 35425 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR279478  Salix laevigata Robert DeRuff 2012-3-12 576 B Orange South Coast, Newport Beach, Shellmaker Island, 0.08 mi. west of Back Bay Drive 2 Comment
  CAS-BOT-BC125331  Salix lasiandra var. lasiandra R. E. Riefner, Jr. 2006-10-4 06 -475 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lake Forest, Aliso Creek near Portola Parkway at El Toro Rd. 225 Comment
  SD235019  Salix lasiandra var. lasiandra R. E. Jr. Riefner 2006-10-4 06 475 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lake Forest, Aliso Creek near Portola Parkway at El Toro Rd. 224 Comment
  RSA362783  Salix lasiolepis Louis C. Wheeler 1934-1-14 2366 Orange Aliso Creek near Laguna. 76 Comment
  RSA542511  Salix lasiolepis Fred M. Roberts Jr. 1987-3-31 3329 Orange Lomas de Santiago: Lomas Ridge, Upper Serrano Canyon east fork, 2.5 km SE Bolero Lookout. 369 Comment
  RSA700179  Salix lasiolepis Minor Warne 1934-2-1 s.n. Orange Santa Ana River bed Comment
  RSA700933  Salix lasiolepis Keith E. Hoffmaster 1931-3-15 s.n. Orange Santa Ana Mountains Comment
  CAS-BOT-BC128467  Salix lasiolepis var. lasiolepis John Thomas Howell 1927-7-14 2771 Orange Santa Ana River bottom, Santa Ana Canyon [Canon] 152 Comment
  POM178870  Salix lucida subsp. lasiandra Marcus E. Jones 1930-1-26 s.n. Orange Wildwood Camp. Comment
Read comments Nov 18 2013
  CAS-BOT-BC126302  Salix sessilifolia John Thomas Howell 1927-6-6 2440 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC126314  Salix sessilifolia Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  RSA700176  Salix sessilifolia Minor Warne 1934-02 s.n. Orange Santa Ana River Comment
  CAS-BOT-BC176841  Salsola australis Ira L. Wiggins 1965-10-27 20306 Orange Along Brea Canyon Road just SW of Los Angeles County Line Comment
  IRVC29830  Salsola tragus Tom McCrainie, Mark A. Elvin 2006-9-23 4 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  POM201958  Salsola tragus L. M. Booth 1932-7-4 1253 Orange Newport Lagoon. Comment
  RSA269  Salsola tragus J. T. Howell 1927-6-6 44 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA34605  Salvia apiana N. C. Cooper 1944-6-4 1329 Orange San Juan Canyon. 152 Comment
  RSA542480  Salvia apiana Fred M. Roberts, G. A. Marsh, K. G. Marsh 1988-4-26 3941 Orange San Joaquin Hills: Pelican Hill, 0.5km SE summit. 165 Comment
  RSA650627  Salvia apiana Daniel Truong 1991-5-13 28 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  SD152816  Salvia apiana Steve Boyd, Tim Ross 1992-5-20 7484 Orange Southern Santa Ana Mountains: San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building). 404 Comment
  RSA0006683  Salvia apiana J. T. Howell 1927-6-1 5 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  OBI30083  Salvia carduacea T. Pringle 1966-4-27 91 Orange RR Cyn Rd by RR Cyn Lake turnoff Comment
Read comments Sep 6 2020
  RSA752032  Salvia columbariae Fred M. Roberts, Eliza Maher 2008-3-26 6795 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  CAS-BOT-BC233673  Salvia leucophylla Carl B. Wolf 1942-5-12 11263 Orange Rancho Santa Ana Botanic Garden, along road in W part of Garden 198 Comment
  SD43536  Salvia leucophylla Carl B. Wolf 1943-6-8 11449 Orange Rancho Santa Ana Botanic Garden; on dry brushy hillside. 198 Comment
  HSC25248  Salvia mellifera Richard Spjut 1972-2-21 2217 Orange Santa Ana Mtns., Cleveland National Forest, along Hwy. 74 305 Comment
  OBI30186  Salvia mellifera Diane Terrell 1969-4-30 110 Orange At Tucker Wildlife Sanctuary in Modjeska Cyn 427 Comment
  RSA294797  Salvia mellifera Lyman Benson 1946-5-13 12098 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
  UCLA69968  Salvia mellifera Martha Hilend Apr 1921 45 Orange Fullerton, Little Bear Lake; Orange County Park Comment
  UCR131880  Salvia mellifera J. Mallory, V. McCoy 1995-6-30 6454- 60 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. Comment
  RSA751420  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-7-3 35691 Orange Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 275 Comment
  UC1294017  Sambucus mexicana E. K. Balls 1958-6-27 23289 Orange below tower lookout; Santa Ana Mts., Santiago Peak 1661 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-BC238830  Sambucus nigra subsp. caerulea Carl B. Wolf 1931-7-25 2293 Orange Above the irrigation canal, just no. of the Mexican houses, Rancho Santa Ana, Santa Ana Canon [Canyon] 121 Comment
  RSA640718  Sambucus nigra subsp. caerulea L. C. Wheeler 1931-8-16 s.n. Orange Santa Ana River 152 Comment
  RSA0022436  Sanicula R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49793 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR209361  Sanicula arguta Fred M. Roberts, D. E. Bramlet 2008-4-1 6837 Orange Lomas de Santiago, Loma Ridge, East Lomas Ridge Road along crest, 3.2 km northwest of Bee Peak and 3.4 km northeast of Rattlesnake Reservoir Dam, Irvine Ranch Conservancy 388 Comment
  RSA598960  Sanicula crassicaulis Scott D. White 1997-3-28 4832 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  UC1022510  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
  UC1377706  Sanicula crassicaulis John Ingram 1960-3-29 264 Orange 2 mi above O'Neill Park (Trabuco Canyon); Trabuco Canyon Comment
  UCSB48365  Sanicula crassicaulis Roberts, Fred 1982-4-18 Orange Santa Ana Mtns.; Upper Hot Springs Cyn., 0.1 km. SW Falcon Group Camp; 0.2 km. SE Los Pinos Peak 1075 Comment
  IRVC20382  Schismus barbatus Fred M. Roberts 1983-3-16 910 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  IRVC21985  Schismus barbatus Fred M. Roberts, Gordon Marsh 1985-3-12 1530 Orange mesa west of Ave. Pico and north of El Camino Real, 3.2km SSE Coyote Bluff; 0.6km E Bench Mark 16 (sect. 32), San Clemente 37 Comment
  CAS-BOT-BC111475  Schoenoplectus americanus John Thomas Howell 1927-6-30 2620 Orange Mucky soil of canal bank alkaline coastal plain, 7 mi east of Long Beach. 15 Comment
  UCR193036  Schoenoplectus americanus A. C. Sanders, Fred M. Roberts 2008-6-17 35493 Orange Peninsular Range; Santa Ana Mtns., 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
  RSA92  Schoenoplectus americanus J. T. Howell 1927-7-19 444 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  JEPS83155  Schoenoplectus californicus L. M. Booth 1932-6-4 1139 Orange Newport Bay Comment
  RSA683229  Schoenoplectus californicus Scott D. White, Matt Carlton 2003-11-20 9864 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (Dana Point) 24 Comment
  POM202158  Schoenoplectus maritimus L. M. Booth 1932-5-24 1105 Orange Marsh of salt marsh, Newport Lagoon. Comment
  POM202161  Schoenoplectus maritimus L. M. Booth 1932-5-24 1104 Orange Marsh of salt marsh, Newport Lagoon. Comment
  RSA791473  Schoenoplectus maritimus Keith E. Hoffmaster 1934-7-15 155 Orange Near Santa Ana Comment
  RSA91578  Schoenoplectus maritimus F. W. Peirson 1925-4-12 5749 Orange Laguna Canyon, Laguna Beach. 107 Comment
  RSA226634  Scirpus acutus var. occidentalis Christopher Davidson, Gerald L. Benny 1971-6-15 1540 Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  UC840666  Scirpus californicus P. A. Munz 1922-9-2 6351 Orange Laguna Canyon 45 Comment
  UCR207546  Scirpus cernuus O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  RSA542336  Scirpus microcarpus Fred M. Roberts 1988-5-13 3973 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon at spring, 2.5 kilometers NW Bolero Lookout. 428 Comment
  RSA797491  Scirpus microcarpus Keith E. Hoffmaster 1927-6-5 24 Orange Near Fairview, no. of Costa Mesa Comment
  RSA425212  Scrophularia californica subsp. floribunda N. C. Cooper 1944-6-4 1371 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA637492  Selaginella bigelovii Valerie Sosa, LeRoy Gross 1999-6-8 505 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  IRVC22751  Selaginella cinerascens D. Bramlet, W. Wright 1986-5-4 Orange knoll above Segundo Deschecha Canada and west of Christianitos Canyon Rancho Mission Viejo 212 Comment
  CAS-BOT-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
  RSA450849  Senecio aphanactis Karlin G. Marsh 1978-3-16 s.n. Orange UCI Ecological Preserve: Hill #1 52 Comment
  RSA626140  Senecio aphanactis D. E. Bramlet 1998-3-11 2577 Orange UCI campus, on the UCI Ecological Reserve, located on the 303 knoll of the SW ridgeline in the reserve. Approx. 305m SW of Los Trancos Dr. and 92m N or Hwy 73, just above roadcut. 92 Comment
  RSA17009  Senecio californicus P. C. Everett 1936-3-19 7732 Orange Santa Ana Botanic Garden. 183 Comment
  RSA737542  Senecio californicus Fred M. Roberts 2008-3-12 6719 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA450842  Senecio californicus J. B. Anderson 1966-2-26 413 Orange San Joaquin Hills: South facing slope at head of Moro Canyon along jeep road 244 Comment
  SEINET7067533  Senecio flaccidus 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
  UCR177697  Senecio linearifolius Scott D. White 2004-7-7 10606 Orange South Coast, Laguna Niguel, along Pacific Island Drive 122 Comment
  RSA450861  Senecio mikanioides Gordon Marsh, K. G. Marsh 1978-1-29 s.n. Orange Santa Ana Mountains, Lower Ladd Canyon, reach between west and east forks Comment
  RSA5576  Senecio vulgaris C. B. Wolf 1932-6-28 3766 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  UCR192452  Senecio vulgaris A. C. Sanders, Fred M. Roberts 2008-3-25 34578 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  CAS-BOT-BC364603  Senecio vulgaris Ira L. Wiggins 1966-3-31 20569 Orange Shoulder of Associated Road, 200 m. S of Imperial Highway, Fullerton Comment
  RSA383927  Sequoia sempervirens Albert J. Perkins 1915-3-30 s.n. Orange [Timmon s Dooryard] N. Main St. Santa Ana Calif. Comment
  JEPS42884  Sesuvium verrucosum L. M. Booth 1932-7-4 1257 Orange Newport Bay Comment
  POM765  Sesuvium verrucosum D. L. Crawford s.n. Orange Laguna Canon. Comment
  RSA5954  Sesuvium verrucosum C. B. Wolf 1932-7-7 3847 Orange Bryant Ranch, 100 ft. N of Bixby Ave. & 7/10 miles W of Hansen road., (100 ft. N & 2/10 mi. W of SE corner of NE 1/4 of NW 1/4 of sect. 34 T4S R11W) Comment
  SEINET2116164  Setaria megaphylla R. E. Riefner Jr. 2006-11-12 06 -667 Orange San Joaquin gun Club, Tustin Quad: City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay, San Diego Creek at SR-73 overpass 10 Comment
  CAS-BOT-BC243593  Setaria parviflora Miss. H. D. Geis 1902-5-1 s.n. Orange Santa Ana Comment
  RSA184127  Setaria parviflora I. L. Wiggins 1965-9-26 20260 Orange Roadside at W end of Orangethorpe Estates subdivision, near Atwood. Orange County Comment
  RSA697731  Setaria parviflora Rankin s.n. Orange Santa Ana. Comment
  RSA734613  Setaria parviflora Keith E. Hoffmaster 1933-10-29 496 Orange Near Tustin Comment
  UCR256943  Sidalcea malviflora Naomi Fraga 2009-5-11 2715 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  RSA88053  Sidalcea neomexicana subsp. thurberi C. L. Hitchcock 1952-5-30 s.n. Orange About 100 yards north of Katella Ave. to west of Hanson St., about 11 miles east of Long Beach Comment
  RSA752036  Silene antirrhina Fred M. Roberts 2008-3-27 6813 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 1, 0.5km W Marine Institute (Dana Point Harbor). 45 Comment
  SD241797  Silene antirrhina Mark A. Elvin 2003-3-30 2384 Orange South Coast: north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73. 46 Comment
  UCR191021  Silene antirrhina A. C. Sanders, Fred M. Roberts 2008-4-22 35011 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
  IRVC357  Silene gallica B. Newman 1965-3-14 Orange Dana Point Comment
  RSA732119  Silene gallica A. C. Sanders, Fred M. Roberts 2008-4-8 34730 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCR193496  Silene laciniata A. C. Sanders, T. B. Salvato 2008-5-13 35361 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
  IRVC360  Silene laciniata subsp. major A. S. Boughey, P. Pembrook 1965-7-15 1053 Orange Saddleback Mtn. below Modjeska Peak, Cleveland National Forest, ; chaparral. Santa Ana Mountains Comment
  RSA653177  Silybum marianum David Barrios 1991-5-8 32 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA751429  Silybum marianum A. C. Sanders, Fred M. Roberts 2008-7-3 35695 Orange Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  SDSU521  Silybum marianum Curtis B. Kendall 1994-5-18 18 V94G Orange Intersection of Bell Canyon Road and North Prusker Road in the National Audubon Starr Sanctuary. 268 Comment
  UCR192217  Silybum marianum A. C. Sanders, Fred M. Roberts 2008-5-6 35269 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 379 Comment
  RSA16983  Sinapis arvensis Percy C. Everett 1936-3-20 s.n. Orange Rancho Santa Ana Botanic Garden, Santa Ana Canyon. West of Adm. Bldg. 198 Comment
  RSA788902  Sinapis arvensis Fred M. Roberts 2008-6-12 7042 Orange Lomas de Santiago: Loma Ridge, ridge north of Shoestring Road above Santiago Cyn. Rd. Irvine Ranch Land Conservancy. 321 Comment
  CAS-BOT-BC75038  Sisymbrium altissimum John Thomas Howell 1927-7-24 2821 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  CAS-BOT-BC75236  Sisymbrium irio Ira L. Wiggins 1966-2-5 20425 Orange Roadside along Newport Boulevard, 4.5 miles north of Orange County Fairgrounds. Comment
  RSA704929  Sisymbrium officinale Fred M. Roberts, David E. Bramlet 2004-4-21 6042 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Flagpole Meadow in upper Shady Canyon, 1.63 km NW Sycamore Gate, 1.18 km W of Cristianitos Road. 168 Comment
  RSA735968  Sisymbrium officinale Scott D. White, Justin Wood 2008-4-22 11906 Orange Telegraph Canyon Road, E of Carbon Canyon Regional Park. 152 Comment
  RSA366972  Sisyrinchium bellum R. D. Harwood 1920-4-24 3451 Orange Santa Ana Mountains, Sierra Canyon. 366 Comment
  RSA697825  Sisyrinchium bellum Anonymous s.n. Orange Near Orange Co. Park. 793 Comment
  UCR191233  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts 2008-4-22 35029 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UCR192074  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts 2008-5-6 35250 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  IRVC20989  Sitanion jubatum Karlin G. Marsh 1981-6-15 s.n. Orange Divide between Weir and Gypsum Canyons. Santa Ana Mountains Comment
  RSA752039  Solanum americanum Fred M. Roberts 2008-3-27 6809 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  SEINET237157  Solanum americanum Scott D. White, Brain Leatherman 1997-6-12 5309 Orange Santa Ana Mtn. foothills. East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site 250 Comment
  UC536954  Solanum americanum Lawrence M. Booth 1932-6-28 1213 Orange Bolsas Marsh Comment
  UCR217467  Solanum americanum Mark A. Elvin 2003-2-23 2314 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  SD143700  Solanum douglasii Scott D. White 1997-3-28 4828 Orange Above Modjeska Canyon: proposed water tank site 427 Comment
  UCR97817  Solanum douglasii Scott D. White 1997-3-28 4828 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA0020075  Solanum douglasii Kenneth Beard s.n. Orange Santa Ana riverbank Comment
  RSA422440  Solanum douglasii Claire Kibbe 1936-07 19966 Orange Santa Ana Canyon. Comment
  RSA733736  Solanum douglasii Goldie Peale 1932-5-1 s.n. Orange Outskirts of Orange. Near Lemon Heights Blvd. Comment
  UCR136650  Solanum nigrum F. W. Peirson 1924-2-9 4523 Orange South Coast, between Wintersburg and the sea 9 Comment
  NY820829  Solanum rostratum E. Johnson 1946-8-22 11531 Orange Rancho Santa Ana, Santa Ana River Canyon 122 Comment
  CAS-BOT-BC156710  Solanum umbelliferum C. B. Wolf 1931-3-6 1862 Orange 1 mi. no. of base of Modjeska Grade, west slope of Santa Ana Mts. 304 Comment
  HSC25250  Solanum umbelliferum R. W. Spjut 1972-2-21 2215 Orange Santa Ana Mts., Cleveland Nat'l Forest, along Hwy. 74 305 Comment
  POM6347  Solanum umbelliferum Philip A. Munz, L. T. Street 1919-5-3 2650 Orange Santa Ana River Canyon. Comment
  UC484245  Solanum umbelliferum C. B. Wolf 1931-3-6 1862 Orange 1 mi n of base of Modjeska Grade (w slope of Santa Ana Mountains); Santa Ana Mountains, Modjeska Grade 304 Comment
  UCSB52472  Solanum umbelliferum Roberts, Fred 1983-1-7 Orange Laguna Beach: Park Canyon along west flank of Temple Hill, 1.7km NE Thurston High School; 1.7km SE Bench Mark 104 205 Comment
  RSA735963  Solanum xanti var. xanti Scott D. White, Justin M. Wood 2008-4-24 11911 Orange Chino Hills: SCE powerline corridor, SE of Carbon Canyon Rd and N of Chino Hills State Park. 366 Comment
  RSA0051386  Solidago californica Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49600 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  UCR250137  Solidago velutina subsp. californica Dick Newell, Judy Booth 2013-11-17 342 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, 1.5 mil. NE of Maple Springs gate 701 Comment
  CAS-BOT-BC364909  Solidago velutina subsp. californica Mrs. R. W. Summers 1887-8-1 s.n. Orange Attwoods [Atwood ?] Hill Comment
  IRVC22185  Sonchus asper Fred M. Roberts 1985-4-11 1644 Orange Dana Point Headlands; Weyerhaeuser Horticultural Research Station property. Southern Coastal 61 Comment
  POM202167  Sonchus oleraceus L. M. Booth 1932-6-15 1193 Orange Marsh border East of Huntington Beach. Comment
  RSA184147  Sonchus oleraceus I. L. Wiggins 1966-5-25 20668 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton. Comment
  UCR237816  Sonchus oleraceus Mark A. Elvin 2003-2-2 2290 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR26160  Sonchus oleraceus John C. Roos 1949-10-1 4686 Orange South Coast, Doheny Beach 0 Comment
  CAS-BOT-BC374664  Sonchus oleraceus W. P. Sanders 1969-7-4 s.n. Orange Costa Mesa Comment
  RSA688866  Sonchus oleraceus Fred M. Roberts 2003-5-1 5669 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.49km S Gato Gate and just west of Cristianitos Rd. (San Clemente) 84 Comment
  CAS-BOT-BC235342  Sorghum halepense Carl B. Wolf 1932-6-13 3724 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  HSC10988  Sorghum halepense D. W. Snell 1964-3-24 7 Orange 1 mi. E of Brea on Birch St. Comment
  IRVC15382  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  IRVC18904  Sorghum halepense Fred M. Roberts 1981-6-24 284 Orange San Juan Capistrano: 3.2km south of Saddleback College on Rancho Viejo Rd. southern coastal 42 Comment
  POM122350  Spartina foliosa Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM186307  Spartina foliosa Joseph A. Ewan 1932-7-28 7709 Orange East end of Newport Bay Comment
  RSA483172  Spartina foliosa F. R. Fosberg 1930-7-10 S 3193 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  RSA483176  Spartina foliosa E. Yale Dawson 1948-8-15 5109 Orange Salt marshes bordering estuaries leading to Bolsas Bay. Comment
  RSA548855  Spartina foliosa Fred M. Roberts 1986-10-31 3185 Orange Seal Beach Naval Weapons Station: Anaheim Bay, vicinity of Hog Island., UTM 3732900m N, 400900m E 0 Comment
  SBBG57103  Spartina foliosa F. M. Reed 1927-11-25 5676 Orange Anaheim Landing Comment
Read comments May 1 2011
  IRVC2453  Spartium junceum L. Aldis 1965-3-27 s.n. Orange Black Star Canyon and Silverado Canyon Rds. Santa Ana Mountains Comment
  RSA658212  Spartium junceum T. A. Daubert 1991-5-19 647 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  UCR163307  Spergularia B. G. Pitzer 1996-4-30 2791 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  CAS-BOT-BC390309  Spergularia macrotheca var. macrotheca Scott D. White 1997-3-26 4821 Orange Univ. of Calif. Irvine Campus: Site of proposed student recreation center, east of main campus. Existing Farm School and adjacent grasslands (horse pasture) between California Ave. and Culver Dr. 30 Comment
  RSA0098516  Spergularia marina Elroy Robinson 1936-6-26 s.n. Orange El Torro, along Santa Fe Railway. Comment
  RSA47078  Spergularia rubra Albert J. Perkins 1926-4-27 14728 Orange SAnta Ana, Mr. Perknis yard Comment
  RSA5910  Spergularia salina C. B. Wolf 1932-7-2 3817 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  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
  POM1129  Sporobolus airoides C. B. Bradshaw s.n. Orange Near Anaheim Landing Comment
  RSA788911  Sporobolus indicus Fred M. Roberts 2008-9-17 7106 Orange Peninsular Ranges: Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana river, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river. 87 Comment
  RSA35669  Stachys ajugoides Clara Mason Fox s.n. Orange Silverado Canyon. Comment
  UCLA70972  Stachys ajugoides var. rigida C. Epling, H. Lewis Jun 1940 Orange near Summit (Ortega Road); Santa Ana Comment
  POM202024  Stachys bullata L. M. Booth 1932-5-19 1080 Orange Newport Bay. Comment
  RSA681025  Stachys rigida subsp. quercetorum Fred M. Roberts, D. E. Bramlet 2003-3-13 5575 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  RSA82576  Stachys rigida subsp. quercetorum F. W. Peirson 1923-9-7 4039 Orange Santa Ana Mountains; Trail Trabuco Canyon to Santago Peak. 1220 Comment
  SEINET9355912  Stachys stebbinsii Unknown 2011-9-27 39902 Orange Orange Co., CA Comment
  CAS-BOT-BC393824  Stellaria media Ira L. Wiggins 1966-3-22 20540 Orange near end of pavement about 5 miles above Ranger Station, Cleveland National Forest Comment
  RSA528050  Stenotaphrum secundatum A. C. Sanders 1990-10-6 10191 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  UCR207544  Stenotaphrum secundatum O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCR67009  Stenotaphrum secundatum A. C. Sanders 1990-10-6 10191 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  UCR193852  Stephanomeria A. C. Sanders, Fred M. Roberts 2008-7-16 35827 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  CAS-BOT-BC375124  Stephanomeria cichoriacea Carl B. Wolf 1933-8-24 5393 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  UCR186593  Stephanomeria diegensis Robert DeRuff 1994-1 462 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, Newporter Canyon 8 Comment
  UCR222872  Stephanomeria diegensis T. B. Salvato 2010-10-27 5109 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  UCR222876  Stephanomeria diegensis T. B. Salvato 2010-10-27 5129 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  POM202180  Stephanomeria exigua subsp. coronaria L. M. Booth 1932-6-17 1205 Orange Bolsas Marsh, near highway Comment
  UC520303  Stephanomeria virgata subsp. pleurocarpa Joseph Andorfer Ewan 1932-7-28 7706 Orange Corona del Mar Comment
  RSA712943  Stephanomeria virgata subsp. virgata Fred M. Roberts, Robert L. Allen 2005-10-15 6308 Orange Upper Long Canyon along Main Divide Road, 3.1km E Los Pinos Peak and 0.3km N Old Dominion Mine. 981 Comment
  RSA439  Stillingia linearifolia J. T. Howell 1927-7-5 271 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  UCR192109  Stipa coronata A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35310 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  HSC13367  Stipa pulchra C. L. Hitchcock 1966-3-15 24142 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  IRVC25397  Stylocline gnaphalioides Fred M. Roberts 1987-4-3 3340 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  HSC6239  Stylocline gnaphaloides J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  UCR5131  Stylocline gnaphaloides Barbara T. Gittins, O. F. Clarke 1966-3-19 891 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  UCSB52865  Stylocline gnaphaloides Roberts, Jr., Fred 1982-4-3 Orange Dana Point Headlands; north of Dana Strand Rd., 0.5 km. W Dana Point Harbor; 0.8 km. SSW Richard Henry Dana School 80 Comment
Read comments Dec 12 2018
  POM413  Stylomecon heterophylla P. A. Munz 1918-5-4 2171 Orange Laguna. Comment
  RSA124719  Styrax redivivus E. K. Balls, Percy C. Everett 1957-11-25 3250 Orange Upper Trabuco Canyon, 2.2 mi. ne. from entrance to Holy Jim Canyon, 991 Comment
  RSA263773  Styrax redivivus Robert Harvey H- 85 -66 Orange Tan Mine Canyon. Comment
Read comments Oct 15 2013
  RSA535089  Styrax redivivus Steve D. Boyd, Orlando Mistretta 1991-5-9 6205 Orange Santa Ana Mountains, crest of range, S of Oak Flats at Beek's Place on Main Divide Truck trail at junction with Black Star Canyon Road. 854 Comment
  SD245496  Styrax redivivus Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49598 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  POM202055  Suaeda calceoliformis L. M. Booth 1932-8-5 1353 Orange West Newport Beach. Comment
  UC729951  Suaeda calceoliformis Carl B. Wolf 1932-6-28 Orange Bryant Ranch; edge of field on Bryant Ave 91 Comment
  RSA5824  Suaeda calceoliformis C. B. Wolf 1932-6-28 3798 Orange 100 ft. east of pump house at East End Camp. 9 Comment
  RSA5866  Suaeda calceoliformis C. B. Wolf 1932-9-13 4020 Orange Bryant Ranch. 3/10 miles W of Los Alamitos Blvd.700 ft. south of Bryant Ave., (800 ft. east & 700 ft. south of NW corner of SW 1/4 sec. 30 T4S R11W) 7 Comment
  RSA70016  Suaeda esteroa F. W. Peirson 1924-8-29 5082 Orange 2.5 miles from Balboa on road inland along creek. Comment
  RSA758777  Suaeda esteroa Anstruther Davidson 1907-9-1 1778 Orange Newport Comment
  UCSB58942  Suaeda esteroa Sanders, A. 1990-10-6 Orange Newport Bay, North Star County Beach area; on the SW end of the bay; ca. 2 km. inland of Hwy. 1 3 Comment
  CAS-BOT-BC110410  Suaeda taxifolia L. R. Abrams 1917-6-25 6557 Orange Balboa. Comment
  IRVC25415  Suaeda taxifolia Fred M. Roberts, Wayne Ferren 1987-4-8 3356 Orange Upper Newport Back Bay, west side, North Star Beach, 0.8km N Coney Island, Newport Beach 0 Comment
  RSA438590  Suaeda taxifolia Joseph A. Ewan 1932-7-29 7712 Orange Newport lagoon Comment
  SEINET187090  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange Santa Ana River Bridge west