Search Results — 2000 specimen records retrieved (1626 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA460929  Abronia maritima N. C. Cooper 1942-11-9 888 Orange Balboa Comment
  RSA764470  Abronia maritima Doris Bowers 1957-5-16 207 Orange Corona Del Mar 3 Comment
  RSA678513  Abronia umbellata subsp. umbellata Valerie L. Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1130 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  JEPS61233  Abronia villosa L. M. Booth 1932-7-25 1308 Orange Coastal Santa Ana River Comment
  SEINET7067537  Abronia villosa A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash northwest of Orange. Coordinate datum: NAD27. UTM Zone 11, 418667mE, 3739612mN. Comment
  UC527619  Abronia villosa C. B. Wolf 1931-7-1 2259 Orange lower end of Santa Ana Canyon Santa Ana Canyon, Atwood 76 Comment
  SEINET5642645  Acacia longifolia Shelby J. Wood 2013-3-6 4 Orange Laguna Hills.; 0 Comment
  UCR24737  Acacia podalyriifolia Sue Freeman 1966-11-4 s.n. Orange Across Hwy 1 from San Clemente Beach at the foot of a grassy shrubby cliff Comment
  CDA25889  Acacia saligna Mark A. Elvin, D. G. Kelch, B. S. Nerhus, Patricia Iluore 2006-12-9 5325 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  RSA337340  Acalypha californica Steve Boyd, L. LaPre 1981-5-27 s.n. Orange N end of the Santa Ana Mountains along power line road on ridges E of Weir Canyon and the head of Gypsum Canyon. Comment
  RSA3249  Acer macrophyllum B. D. Stark 1931-6-10 2246 Orange Claymine Canyon north end of Santa Ana Mountains. 244 Comment
  SEINET3195254 Image available Acer macrophyllum P. C. Everett 1935-6-19 7239 Orange Santa Ana Mts., Trabuco Canyon,2 6/10 mi. below (W.) Summit Truck Trail 910 Comment
  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
  RSA631402  Achnatherum coronatum Valerie L. Soza, LeRoy Gross 1999-6-7 491 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA773562  Achnatherum coronatum Fred M. Roberts 1999-5-14 5218 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout 451 Comment
  RSA791875  Achnatherum coronatum R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49617 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  UCD50245  Achnatherum coronatum Peter Kamb 1948-6-19 1090 Orange Erect or ascending cespitose perennial with stout stems 15-25dm high. Holy Jim Canyon, Santa Ana Mts. Orange County, California 609 Comment
  RSA0093590  Acmispon americanus var. americanus Fred M. Roberts 2014-4-21 7853 Orange South Coast. SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin. 113 Comment
  UCD170824  Acmispon micranthus A. C. Sanders; Fred M. Roberts 2008-3-25 34520 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UCR230828  Acourtia microcephala Dick Newell, Don Millar 2011-6-14 173 Orange South Coast, San Joaquin Hills, Serrano Ridge on west side of Laguna Canyon 260 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
  RSA649082  Adenostoma fasciculatum Karl Price 1988-4-29 13 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
  RSA790699  Adenostoma fasciculatum Kenneth Beard 6 Orange Silverado Canyon. Comment
  UC1127728  Adenostoma fasciculatum H. E. Norton 1931-3-23 48 Orange 1 1/2 mi. s. Santa Ana Canyon (Plot #37, Corono #2); Corona Quad. Comment
  UCR230219  Adenostoma fasciculatum Dick Newell, Ed Hill 2011-3-29 102 Orange Peninsular Range; Santa Ana Mtns., 200 yards NE of old coal mine, under power lines, off Coal Rd. below intersection with Upper Blind Cyn. Rd. 482 Comment
  UCR98134  Adenostoma fasciculatum George K. Helmkamp, E. A. Helmkamp 1997-4-24 1662 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  RSA358  Adenostoma fasciculatum var. fasciculatum J. T. Howell 1927-7-29 515 Orange Near east boundary of Rancho Santa Ana. 152 Comment
  CDA1085  Adiantum capillus-veneris D. G. Kelch 2006-12-9 6 .532 Orange Newport Bay, Back Bay Dr. betweeen marsh and steep bluff. Comment
  CDA21565  Adiantum capillus-veneris Mark A. Elvin, D. G. Kelch 2006-12-9 5323 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  RSA687673  Adiantum capillus-veneris Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  RSA788246  Adiantum capillus-veneris R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49622 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  RSA773506  Adiantum jordanii Fred M. Roberts 1999-5-14 5226 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 490 Comment
  UCR222415  Adiantum jordanii D. E. Bramlet 2008-4-1 4139 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, ridgeline in upper Hicks Canyon, 136 m south of the Haul Road 341 Comment
  IRVC21220  Adiantum jordanii Fred M. Roberts 1964-3-9 1247 Orange cyn, 2.9km NE Median Rancho Survey Mark; 1.6km NW Bench Mark 422, Wagon Wheel Regional Park 165 Comment
Read comments
Aug 1 2009
  RSA716088  Aeonium Fred M. Roberts 2006-7-27 6397 Orange San Joaquin Hills: Laguna Beach, Temple Hill, 731 Nyes Place, 1.0km NNE Golf Island. 174 Comment
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Dec 21 2019
  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
  RSA771712  Agave americana Robt. Allen, Richard S. Newell, Roger E. Reinke 2006-6-30 s.n. Orange Holy Jim Canyon Trail. Near a small parking area just below forest gate and trailhead. 597 Comment
  UC1595640  Agoseris grandiflora Steve Boyd and Orlando Mistretta 1991-5-9 6198 Orange Santa Ana Mountains, crest of range at Oak Flat, SE of Sierra Peak, just W of Riverside County line. Comment
  UCR242709  Agrostis Chris E. True 2013-5-2 s.n. Orange Bommer Canyon, NW of Aliso Viejo 137 Comment
  CAS-BOT-BC127479  Agrostis capillaris Ira L. Wiggins 1965-10-24 20291 Orange Roadside at corner of Yorba LInda and State College Boulevards, Fullerton. Comment
  RSA798099  Agrostis exarata R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49570 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA6042  Agrostis stolonifera C. B. Wolf 1932-7-13 3722 Orange Fullerton. 53 Comment
  RSA573292  Allium ampeloprasum Steve Boyd, Timothy S. Ross 1994-9-14 8349 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Lucas Canyon. 317 Comment
  RSA79414  Allium haematochiton E. K. Balls 1952-5-22 17248 Orange 2 mi. S. of Sierra Peak 610 Comment
  UCSB18193  Allium haematochiton 1962-3-9 Orange 12.3 miles east of San Juan Capistrano on State 74 243 Comment
Read comments
Apr 10 2016
  RSA0063248  Allium marvinii Gordon Marsh, Karlin G. Marsh 1978-5-13 s.n. Orange Santa Ana Mountains: Coal Canyon; Ridge along Main Divide Road, S portion of acreage. 732 Comment
  RSA562756  Allium praecox Steve Boyd, Timothy S. Ross 1992-5-19 7432 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucan Canyon Trail in Lucas Canyon, just upstream from divide with Aliso Canyon. 366 Comment
  SBBG863  Allium praecox H. and M. Dearing 1937-4-12 3100 Orange Santa Ana Cyn 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
  RSA751399  Allophyllum divaricatum R. E. Riefner Jr. 2007-6-11 07 -252 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, upper Fremont Canyon, Donaldson Ranch area. 389 Comment
  RSA753419  Allophyllum glutinosum D. E. Bramlet 2008-5-16 4276 Orange Agua Chinon Wash . Site is located 3m north of the access road and 1.1km NE of Hwy 241 229 Comment
  UC1178464  Allophyllum glutinosum Peter Kamb 1948-6-19 1084 Orange Holy Jim Canyon Santa Ana Mts., Holy Jim Canyon 609 Comment
  UCSB52943  Allophyllum glutinosum Roberts, Fred 1983-9-26 Orange Santa Ana Mts.; Lion Canyon, Chiquito Basin Trail, 3.6 km NNE Lower San Juan Picnic Grounds; 4.0 km SSE Los Pinos Peak 820 Comment
  RSA708720  Alnus rhombifolia Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6121 Orange Caspers Wilderness Park, Hot Springs Creek in San Juan Cyn., c.a. 0.36km SSW San Juan Ranger Station, at SR 74 crossing. 197 Comment
  CLARK-A1528-917  Amaranthus albus Patricia A. Andrews 1975-6-26 5914 Orange Capistrano Bay Beach 9 Comment
  RSA184077  Amaranthus albus I. L. Wiggins 1966-5-4 20658 Orange Along railroad embankment of A.T. & S.F. R.R., on SW side of Orangethorpe avenue, near Esperanza siding. Comment
  RSA5812  Amaranthus albus C. B. Wolf 1932-6-28 3770 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA724041  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
  UCD97455  Amaranthus deflexus A. C. Sanders 1999-10-31 23225 Orange South Coast: Mission San Juan Capistrano, near intersection of Ortega Highway (Hwy 74) and El Camino Real. Near confluence of San Juan Creek and Arroyo Trabuco. 61 Comment
  POM201880  Amaranthus hybridus L. M. Booth 1932-7-25 s.n. Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  POM201937  Amaranthus powellii subsp. powellii L. M. Booth 1932-7-21 1295 Orange Anaheim Creek Comment
  UCR111749  Amaranthus retroflexus G. S. Nuessly 1980-11-27 s.n. Orange South Coast, south side of East Santiago Canyon Road, 0.25 mi north [west] of North Windes Drive 137 Comment
  UCR188935  Amaryllis belladonna Robert DeRuff 2004-8-13 551 Orange Newport Beach, Upper Newport Bay, vicinity of Castaways Park just north of Pacific Coast Hwy 5 Comment
  IRVC8603  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
  RSA416883  Amblyopappus pusillus L. C. Wheeler 1932-6-25 859 Orange Newport Bay. 1 Comment
  UC565480  Amblyopappus pusillus H. L. Mason 1926-4-25 2915 Orange 5 mi s, on the cliffs Laguna Comment
  JEPS40940  Ambrosia chamissonis L. M. Booth 1932-7-30 1336 Orange Balboa Island Comment
  JEPS40971  Ambrosia chamissonis L. M. Booth 1933-10-18 Orange Newport Comment
  UC536897  Ambrosia chamissonis Lawrence M. Booth 1932-5-25 1110 Orange Balboa Island Comment
  UCR92764  Ambrosia chamissonis F. M. Reed 1933-9-26 8102 Orange South Coast, Arch Beach, near South Laguna 0 Comment
  CDA10047  Ambrosia psilostachya D. G. Kelch 2006-12-9 6 .551 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA703089  Ambrosia psilostachya Fred M. Roberts, Arthur Davenport 2003-9-11 6005 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
  UCR239931  Ambrosia psilostachya O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  RSA5243  Ambrosia psilostachya C. B. Wolf 1932-9-13 4031 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd. (Triangle waste ground at NW corner of SW 1/4 sect. 30 T4S R11W) 8 Comment
  RSA5939  Ambrosia psilostachya C. B. Wolf 1932-7-7 3841 Orange Bryant Ranch ; On Bixby Ave. 2/10 mi. W of Hansen Road. 9 Comment
  IRVC8871  Ammi majus Charles W. Sexton 1963-7-15 s.n. Orange Costa Mesa. Southern Coastal Comment
  SEINET12120344  Ammi visnaga L. M. Booth 1932-1 1268 Orange Sant Ana River Flats, near the sea Comment
  UCR240112  Amorpha fruticosa Dick Newell, Don Millar 2012-5-22 260 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon, 0.4 mi. NE of Irvine Dam spillway 207 Comment
  RSA0090945  Amsinckia eastwoodiae James Snow s.n. Orange Plants of the Bryant Ranch, near Long Beach. Comment
  RSA0089448  Amsinckia intermedia A. C. Sanders, Fred M. Roberts 2008-4-8 34755 Orange Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UC1061778  Amsinckia intermedia A. Lewis Mar 1934 349 Orange San Juan Hills; Corona Quad., San Juan Hills 396 Comment
  UC1178234  Amsinckia intermedia Francia Chisaki 1957-4-3 925 a Orange 3 mi s Irvine (on Hwy 101) Comment
  RSA0016948  Amsinckia intermedia S. A. W. 1971-4-22 19 -D Orange Carbon Canyon Road (St. Hwy. 142) at jct. with Co. dump rd. 1 mi. N Imperial Hwy. 183 Comment
  UCR102014  Amsinckia menziesii B. G. Pitzer 1997-3-25 3008 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  JEPS43116  Anagallis arvensis Lawrence M. Booth 1932-6-28 1216 Orange Bolsas Creek Comment
  RSA708285  Anagallis arvensis Scott D. White, Jennifer H. Jones 2005-3-31 10858 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  RSA747628  Anagallis arvensis Fred M. Roberts 2008-5-16 6972 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  RSA789229  Anagallis arvensis Naomi Fraga, Duncan S. Bell 2009-5-11 2712 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  RSA659985  Anagallis arvensis Steve Teh 1994-5-20 26 Orange Modjeska Grade rd. Fire road trail head. Comment
  CAS-BOT-BC400329  Anemopsis californica Herbert L. Mason 1926-4-25 2902 Orange Near Laguna Comment
  JEPS535  Anemopsis californica Lawrence M. Booth 1932-7-19 1280 Orange Bolsas Creek Comment
  CAS-BOT-BC400330  Anemopsis californica Carl B. Wolf 1932-6-28 3803 Orange Bryant Ranch, edge of field and road (Bixby Ave.) 750 ft. E. of S.W. corner of N.W.40 of N.W.160 of Sect. 33 T4S. R11W. Comment
  POM47581  Anemopsis californica I. M. Johnston 1924-8-29 s.n. Orange 4 mi S of Santa Ana. Comment
  RSA542508  Anemopsis californica Fred M. Roberts, K. Keane 1988-5-25 3986 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark [see UTM] 882 Comment
  RSA700182  Anemopsis californica R. H. McArthur 1934-3-3 s.n. Orange Wintersburg canal bank Comment
  RSA768  Anthemis cotula J. T. Howell 1927-7-18 425 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA542472  Anthemis cotula Fred M. Roberts 1988-4-14 3926 Orange IRVINE: south of the San Diego Freeway, 1.2 km. ENE French Hill. 41 Comment
  RSA594799  Antirrhinum coulterianum Fred M. Roberts, Sandra Leatherman, Brian Leatherman 1994-4-24 4919 Orange Santa Ana Mountains: Lower Hot Springs Canyon, c.a. 1km NNW Juan Rancho Survey Mark. Comment
  CLARK-A1528-4161  Antirrhinum coulterianum subsp. orcuttianum John C. Roos 1937-5-10 2082 Orange San Juan Capistrano Comment
  RSA594818  Antirrhinum kelloggii Fred M. Roberts, Sandra Leatherman, Brian Leatherman 1994-4-24 4912 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 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
  UCR175056  Antirrhinum nuttallianum Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  UCSB47616  Antirrhinum nuttallianum subsp. nuttallianum Roberts, Fred 1980-5-3 Orange Santa Ana Mtns; San Juan Canyon; near mouth of Viejo Cyn; below Rte. 74; 2.5km by road ENE San Juan Guard Station; 0.5km WSW Bm 1100 288 Comment
  POM354910  Antirrhinum nuttallianum subsp. subsessile Louis C. Wheeler 1932-6-25 854 Orange Newport Bay. 3 Comment
  UC672564  Antirrhinum nuttallianum subsp. subsessile H. L. Mason 1926-4-25 2907 Orange 5 mi s Laguna Comment
  IRVC20471  Apiastrum angustifolium Fred M. Roberts 1983-5-4 1023 Orange Temple Hill, Upper Rancho Laguna Canyon, 1.7km SSW Top of the World Sch.; 1.4km ENE Cactus Point, Laguna Beach 200 Comment
  RSA708286  Apiastrum angustifolium Scott D. White, Jennifer H. Jones 2005-3-31 10859 Orange City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  UC536945  Apiastrum angustifolium Lawrence M. Booth 1932-5-12 1027 Orange Newport Bay Comment
  RSA603357  Apium graveolens Scott D. White, Brian Leatherman 1997-6-12 5314 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 junction. 46 Comment
  RSA519  Apium graveolens J. T. Howell 1927-7-15 405 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  UC1120811  Arbutus menziesii A. Lewis May 1934 427 Orange Cleveland National Forest, Trabuco Canyon Trabuco Canyon; Cleveland National Forest, Trabuco Canyon 1158 Comment
  UCSB56518  Arbutus menziesii Meinzer, R.; Mulroy, T. 1971-4-25 Orange Upper Trabuco Canyon, Santa Ana Mts. Comment
  SEINET10449344  Arctostaphylos catalinae James S. Miller 2001-12-15 Miller 10652 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  UCR273480  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42607 Orange Peninsular Range; Santa Ana Mountains, North Main Divide Road (Forest Rte 3S04) between Hwy 74 and Los Pinos Spring, 2.3 km NW (312 deg. ) of El Cariso Fire Station 959 Comment
  UCR282324  Arctostaphylos glandulosa A. C. Sanders, Yi Huang 2017-3-3 42703 Orange Peninsular Range; Santa Ana Mtns., North Main Divide Road, 6.5 km north of Hwy 74, at junction to Blue Jay and Falcon Camps 1038 Comment
  RSA629317  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15524 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA629320  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15523 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA0051413  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49683 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  UCR281857  Arctostaphylos glandulosa subsp. leucophylla A. C. Sanders, Yi Huang 2017-3-3 42697 Orange Peninsular Range; Santa Ana Mtns., North Main Divide Road, 3.5 km north of Hwy 74 959 Comment
  UC1137200  Arctostaphylos glandulosa subsp. zacaensis Willis E. Pequegnat 1940-4-13 Orange Modjeska Springs Cleveland National Forest, Corona Quadrangle, Santa Ana Mts. 457 Comment
  UC1302404  Arctostaphylos glandulosa subsp. zacaensis Robert F. Thorne and John Olmstead 1963-7-26 32838 Orange in Tin Mine Canyon above Beek's Spring; Cleveland National Forest, Santa Ana Mts., Trabugo District 609 Comment
Read comments
Apr 25 2011
  UCR145984  Arctostaphylos glauca June Latting 1977-1-12 s.n. Orange Chino Hills, Tonner Canyon 213 Comment
  RSA719415  Argyranthemum foeniculaceum Fred M. Roberts, Lee Ann Caranza 2006-10-25 6451 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  RSA0013969  Aristida ternipes var. hamulosa Fred M. Roberts 2008-4-22 7167 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn., along Haul Road near asphalt plant, 2.2km ENE Rattlesnake Reservoir dam and 2.2km WNW Bee Peak, Irvine Ranch Conservancy 188 Comment
  SBBG14801  Arnica discoidea P. H. Raven 1962-5-18 17751 Orange 4.8 mi above gate on Silverado Cyn Truck Trail 1066 Comment
  CAS-BOT-BC90187  Artemisia californica John Thomas Howell 1927-10-22 3159 Orange hills on n. side of Santa Ana [Canon] 213 Comment
  CAS-BOT-BC90188  Artemisia californica Leila M. Shultz 1980-5-2 4040 Orange foothills south of Diamond Bar 213 Comment
  OBI74765  Artemisia californica Unknown 2006-8-25 06 -410 Orange City of Dana Point, Salt Creek Beach Park, vicinity of Dana Strand Rd. and Selva Rd. 2 Comment
  RSA0028027  Artemisia californica Fred M. Roberts 2012-9-6 7700 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  RSA417250  Artemisia californica Marcus E. Jones 1930-3-3 26497 Orange Santa Ana Mountains. Comment
  RSA719416  Artemisia californica Fred M. Roberts, Lee Ann Caranza 2006-10-25 6453 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  CHSC35340  Artemisia douglasiana James Henrickson 1972-10-21 8048 Orange Eastern Anaheim, 2 blocks E of Imperial Hwy, along La Palma Ave., just N of Santa Ana River. 60 Comment
  IRVC25177  Artemisia douglasiana Fred M. Roberts, Brenda Fugle 1986-10-1 3156 Orange Laguna Hills; creek channel along Cabot Rd. ca. 1.0km N Pacific Park Pkwy. Southern Coastal 99 Comment
  SEINET3285075 Image available Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-9-18 36075 Orange Peninsular Range; Santa Ana Mtns. Foothills; Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  RSA731954  Artemisia dracunculoides Fred M. Roberts 2007-12-12 6704 Orange Santa Ana Canyon: Santa Ana River, south of Green River Golf course on south side of river, 0.4km E Coal Cyn. Rd. and 0.7km W Riverside Co. line. 129 Comment
  JEPS36975  Artemisia dracunculus John Thomas Howell 1927-9-24 3110 Orange Rancho Santa Ana Santa Ana Canon 152 Comment
  IRVC409  Arthrocnemum subterminale J. B. Anderson 1966-4-16 589 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  RSA695984  Asclepias californica Keith E. Hoffmaster 1936-5-3 s.n. Orange Holy Jim Canyon. Comment
  SEINET10580457  Asclepias eriocarpa Carl B. Wolf 1936-6-17 Wolf s.n. 1936 Orange Santa Ana Mountains, along Ortega Highway, 5.6 mi above San Juan Capistrano 76 Comment
  CAS-BOT-BC65782  Aspidotis californica John Thomas Howell 1927-7-3 2639 Orange Claymine Canyon, n. Santa Ana Mts. 304 Comment
  IRVC20218  Aspidotis californica Fred M. Roberts 1982-9-29 817 Orange Niguel Hill, 2.1km NE Aliso Peak; 1.0km WSW Alicia Fire Sta., Laguna Niguel 249 Comment
  RSA781  Aster hesperius J. T. Howell 1927-10-29 779 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA699979  Astragalus Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  RSA443829  Astragalus brauntonii Gordon Marsh, K. G. Marsh 1978-5-20 s.n. Orange Coal Canyon, along Coal Creek. Comment
  UC592754  Astragalus brauntonii Carl B. Wolf 1936-6-22 8000 Orange n slopes Sierra Pk (Claymine Canyon Truck Trail to Sierra Pk); Santa Ana Mts., n slopes Sierra Pk 457 Comment
  CAS-BOT-BC186732  Astragalus gambelianus Steve Boyd; Tim Ross 1992-5-20 7458 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail, upstream 1/4 mile to spur trail leading to old mining habitations in side canyon 411 Comment
  RSA749305  Astragalus gambelianus Fred M. Roberts 1999-4-21 5178 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
  SEINET10491172  Astragalus trichopodus subsp. leucopsis Tilforth 1979-5-23 TILFORTH 1808 Orange On steep rock cliffs with encelia califronica, eriogonum fasciculatum. Mouth of Aliso canyon, s laguna. Comment
  UCR234155  Astragalus trichopodus var. lonchus Dick Newell, Don Millar 2012-2-28 229 Orange Peninsular Range; Santa Ana Mtns. Region, Lomas de Santiago, along Hangmans Tree Rd. at Santiago Creek 357 Comment
  CAS-BOT-BC194063  Astragalus trichopodus var. lonchus George H. Vansell 1936-5-7 s.n. Orange Trabuca Creek, N of San Juan Capistrano Comment
  HSC14541  Astragalus trichopodus var. phoxus C. L. Hitchcock 1966-3-15 24141 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  UC1286978 Image available Astragalus trichopodus var. phoxus C. L. Hitchcock 1966-3-15 24141 Orange Stearns Lease, 1 1/2 miles e. of Brea Comment
  CAS-BOT-BC200841  Astragalus trichopodus var. trichopodus John Thomas Howell 1927-6-2 2415 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  RSA0042736  Astragalus trichopodus var. trichopodus David Barrios 1991-5-8 35 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  CDA23088  Atriplex Mark A. Elvin, D. G. Kelch 2006-12-9 5299 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  CAS-BOT-BC248871  Atriplex amnicola R. E. Riefner, Jr. 2006-2-12 06 -21 Orange South Coast: N end of City of San Clemente, along N-bound I-5, immediately S of Camino de Estrella exit ramp 66 Comment
  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
  JEPS59563  Atriplex californica L. M. Booth 1932-5-19 1068 Orange Newport Bay Comment
  RSA65352  Atriplex californica F. W. Peirson 1924-2-10 4534 Orange Corona Del Mar Comment
  UCSB56683  Atriplex californica Roberts, Fred 1985-7-9 Orange Crystal Cove State Park; Pelican Point, 1.9 km. SW Pelican Hill 15 Comment
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Feb 9 2020
  VVC1116  Atriplex californica A. C. Sanders, J. Mac 1998-10-17 22267 Orange Coastal flats, Bolsa Chica, near Bolsa Bay, south of Warner Ave., E of the Pacific Coast Highway .3 Comment
  RSA615542  Atriplex californica Robb Hamilton 1989-7-20 s.n. Orange Newport Beach: along Pacific Coast Hwy just west of jct with Newport Blvd. 0 Comment
  JEPS59536  Atriplex canescens L. M. Booth 1932-7-1 1249 Orange Newport Bay Comment
  POM201811  Atriplex canescens L. M. Booth 1932-7-1 1249 Orange Newport Lagoon. Comment
  RSA452455  Atriplex canescens Albert J. Perkins 1920-6-12 s.n. Orange Corona del Mar Comment
  POM632  Atriplex coulteri I. M. Johnston 1918-5-5 1928 Orange Laguna Beach. Comment
  RSA642506  Atriplex coulteri D. E. Bramlet 1998-7-22 2660 Orange San Juan Hills. 854m west of La Pata Ave. and 1.73km north of Prima Deshecha Canada. The site is located on a ridgeline 457m east of the small, unnamed canyon. 48 Comment
  UCR107440  Atriplex glauca B. G. Pitzer, M. Georgiady 1997-4-5 3090 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
  RSA743560  Atriplex glauca R. E. Riefner 2002-5-4 2 -89 Orange City of Newport Beach, E of Newport Bay, E of Back Bay Dr. near Big Canyon Creek. 2 Comment
  IRVC27506  Atriplex lentiformis Mark A. Elvin 2004-5-2 3423 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  SEINET4135192  Atriplex lentiformis Grant D. Brown 1949-10-9 399 Orange Located 4 miles north of San Clemente at base of coastal bluffs on highway 101.; 0 6 Comment
  JEPS59595  Atriplex leucophylla L. M. Booth 1932-8-5 1347 Orange Newport Bay Comment
  UCR18895  Atriplex leucophylla John C. Roos 1949-10-1 4677 Orange South Coast, Doheny Beach 0 Comment
  UC219363  Atriplex pacifica D. L. Crawford 1916-5-5 Orange Laguna Beach Laguna Beach (bluffs along shore, Southern California) Comment
  UCR109501  Atriplex rhagodioides Robert Noll 1999-7-8 s.n. Orange Newport, Back Bay Drive across from Dept. of Fish and Game parking lot, SE side of bay approximately opposite the end of 22nd St. .66 Comment
  POM201896  Atriplex rosea L. M. Booth 1932-7-4 s.n. Orange Newport Lagoon Comment
  UCSB52445  Atriplex rosea Ferren, Wayne; Roberts, Jr., Fred 1982-7-21 Orange Newport Beach; Upper Newport Back Bay, Back Bay Dr., parking lot at mouth of Big Canyon; 2.6 km. ENE Newport Harbor High School Comment
  RSA743498  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
  RSA0031755  Atriplex semibaccata R. F. Thorne 1977-11-21 50819 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA248  Atriplex semibaccata J. T. Howell 1927-7-27 483 Orange Near ranch houses, Rancho Santa Ana 152 Comment
  UCSB48087  Atriplex semibaccata Roberts, Jr., Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.7 km. N Crown Valley Parkway 49 Comment
  RSA252  Atriplex serenana J. T. Howell 1927-7-22 459 Orange North of Botany Garden, Rancho Santa Ana. 274 Comment
  UC206816 Image available Atriplex serenana var. davidsonii A. Davidson, M. D. Sep 1913 2951 Orange Balboa; ; Balbra Comment
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Feb 22 2012
  SEINET4136211  Atriplex suberecta Tom Perring, Tracy Pinckard 1994-3-2 s.n. Orange South Coast: Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd.; 0 11 Comment
  UCR158033  Atriplex suberecta Adrian Wolf 1998-7-1 408 Orange South Coast, Peters Canyon Channel, east of channel near Harvard Ballfield, between Harvard Ave. & creek, south of Warner Ave. to Barranca 15 Comment
  UCR192984  Atriplex suberecta A. C. Sanders, Fred M. Roberts 2008-6-17 35472 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA703251  Atriplex suberecta R. E. Riefner Jr. 1999-5-22 4 -292 Orange City of Dana Point, west of Pacific Coast Hwy., vicinity of Salt Creek Park and Ritz Carlton Hotel. 15 Comment
  IRVC25412  Atriplex watsonii Fred M. Roberts, Wayne Ferren 1987-4-8 3359 Orange Upper Newport Back Bay, west side, North Star Beach, 0.8km N Coney Island, Newport Beach 0 Comment
  POM254669  Atriplex watsonii F. W. Peirson 1924-2-10 4533 Orange Corona Del Mar Comment
  POM202370  Avena barbata L. M. Booth 1932-5-12 1040 Orange Newport Bay. Comment
  RSA659986  Avena barbata Steve Teh 1994-5-20 36 Orange Modjeska Grade rd. Along fire road. Comment
  IRVC27505  Avena fatua Mark A. Elvin 2004-5-2 3421 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA732058  Avena fatua A. C. Sanders, Fred M. Roberts 2008-3-25 34516 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA781941  Avena fatua Mark A. Elvin 2003-2-23 2316 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UCR154264  Avena fatua Mark A. Elvin 2004-5-2 3421 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA184189  Avena fatua I. L. Wiggins 1966-3-22 20555 Orange Silverado Canyon about 0.5 mile below entrance to Cleveland National Forest. Comment
  IRVC20498  Azolla filiculoides Fred M. Roberts, M. L. Polek 1983-11-16 1149 Orange Upper Newport Back Bay, near Bayside Dr., 1.0km SSW Bayview School, 3.0km W UCI campus center, Newport Beach 2 Comment
  IRVC29728  Azolla filiculoides Mark A. Elvin, Barry S. Nerhus 2006-11-4 5240 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA21069  Azolla filiculoides Ramon Valverde 1938-8-4 9435 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  POM48018  Baccharis douglasii I. M. Johnston 1924-8-29 s.n. Orange 3 miles NW of Huntington Beach Comment
  RSA93210  Baccharis douglasii F. W. Peirson 1924-8-29 5092 Orange 3 miles N of Huntington Beach Comment
  CDA10367  Baccharis emoryi Hill, Lee 1951-9-9 B 51632 Orange Santa Fe Railroad tracks, near Red Hill Avenue, Santa Ana. 0 Comment
  IRVC25220  Baccharis emoryi Fred M. Roberts 1986-10-31 3197 Orange Seal Beach Naval Weapons Station: Anaheim Bay, vicinity of Hog Island. on berm along margin of upper coastal salt marsh. southern coastal 0 Comment
  RSA792937  Baccharis emoryi R. F. Thorne 1984-1 s.n. Orange Newport Back Bay. Comment
  UC284887  Baccharis glutinosa P. A. Munz 1923-9-6 7733 Orange Santa Ana Mts., Holy Jim Canyon 762 Comment
  UCR205871  Baccharis malibuensis R. E. Riefner Jr. 2008-7-17 08- 241 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Road 600 Comment
  UCR205873  Baccharis malibuensis R. E. Riefner Jr. 2008-7-2 08- 181 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Road 660 Comment
  RSA741697  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08 -173 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Rd. 470 Comment
  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-BC99444  Baccharis pilularis Carl B. Wolf 1934-12-26 6262 Orange so. end of town of San Clemente 15 Comment
  SD108950  Baccharis pilularis James Henrickson 1972-10-21 8047 Orange Eastern Anaheim, 2 blocks east of Imperial Highway, along La Palma Avenue, just north of Santa Ana River. 60 Comment
  RSA734660  Baccharis salicifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, David E. Bramlet 2008-5-9 35295 Orange Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir. 277 Comment
  UCR223420  Baccharis salicifolia Dick Newell, Don Millar 2011-3-1 066 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  CAS-BOT-BC106666  Baccharis salicina Ira L. Wiggins 1965-11-6 20338 Orange Kraemer Oil Estates, near well No. 14, near end of county road constituted by continuation of Orangethorpe Avenue Comment
  CAS-BOT-BC106668  Baccharis salicina Helen D. Geis 1902-1-1 548 Orange Unspecified Comment
  UCR267220  Baccharis sarothroides Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7091 Orange Santa Ana River Canyon, YORBA LINDA: intersection of La Palma Ave. and Mercado del Rio Street 135 Comment
  CAS-BOT-BC334499  Bahiopsis laciniata R. E. Riefner, Jr. 2013-4-5 13 -56 Orange Anaheim Hills, vicinity Hidden Canyon Rd. at Avenue De Santiago 305 Comment
  UCR247452  Bahiopsis laciniata R. E. Riefner Jr. 2013-4-5 13- 56 Orange Anaheim Hills,vicinity of Hidden Canyon Road at Avenue De Santiago 305 Comment
  RSA113261  Barbarea orthoceras E. K. Balls 1955-4-4 20427 Orange 2.7 miles SW from Orange Riverside county line, along Hwy 74, San Juan Capistrano to Elsinore. 305 Comment
  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
  RSA184173  Bassia hyssopifolia I. L. Wiggins 1966-4-22 20616 Orange On eroded roadway leading to oilwell, W side of Associated Road, between Yorba Linda Boulevard and Imperial Highway. Comment
  RSA5864  Bassia hyssopifolia C. B. Wolf 1932-9-13 4022 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
  RSA609049  Batis maritima L. C. Wheeler 1932-6-25 858 Orange Newport Bay. 1 Comment
  RSA678457  Batis maritima Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1110 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  RSA69761  Batis maritima F. W. Peirson 1921-1-9 2353 Orange near end of beach, Balboa Comment
  POM50755  Bebbia juncea Helen D. Geis 1902-1 550 Orange Santiago Creek Canyon 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
  IRVC26420  Berberis nevinii Mark A. Elvin 2004-2-22 3150 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC19422  Bidens pilosa R. L. Allen 1983-2-12 A630 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal 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
  RSA799  Bidens pilosa J. T. Howell 1928-1-15 806 Orange Near the Ranch House. Rancho Santa Ana. 152 Comment
  SD254490  Bolboschoenus maritimus D. E. Bramlet 2009-11-20 4418 Orange South Coast: San Diego Creek between Irvine and Newport Back Bay. 3 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
  UCSB57131  Bolboschoenus maritimus Marsh, G. 1975-7-28 Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel (No. C05); stream bank just N of Warner St. bridge crossing Comment
  CAS-BOT-BC21114  Bolboschoenus maritimus subsp. paludosus James R. Shevock 1972-9-27 2292 Orange South Coast Ranges. Upper Newport Bay, city of Newport Beach. 1 Comment
  UCR85532  Bolboschoenus maritimus subsp. paludosus Scott D. White 1993-4-28 1289 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  UC712166  Bothriochloa barbinodis Charles B. Fiker 1944-7-7 3139 Orange Trabuco Canyon, on Bill Rochester Ranch Trabuco Canyon Comment
  UCR140887  Bougainvillea glabra Robert DeRuff 1988-9-16 348 Orange Southern Coast, Newport Beach, Newport Back Bay, path between 23rd Street and Mariners Drive 9 Comment
  RSA60252  Bowlesia incana E. K. Balls 1950-3-7 14446 Orange Rancho Santa Aa Botanic Garden. Comment
  IRVC28773  Brassica geniculata Duy D. Nguyen 2006-2-4 1 Orange San Joaquin Marsh; NW Edge of Marsh. Southern Coastal 5 Comment
  UCR193931  Brassica geniculata A. C. Sanders, Fred M. Roberts 2008-7-16 35863 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  UCR258355  Brassica geniculata Fred M. Roberts 2014-4-21 7859 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  IRVC1039  Brassica nigra C. Duncan 1965-4-20 Orange San Juan Capistrano Comment
  IRVC1042  Brassica nigra B. Mawdsley 1965-4-18 Orange Corona del Mar. Newport Beach Comment
  RSA0066349  Brassica nigra A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34626 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 280 Comment
  UCR131877  Brassica nigra J. Mallory, V. McCoy 1995-7-3 6454- 105 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. east of confluence with Santiago Canyon, on a W-facing slope. north of Irvine Lake 300 Comment
  CAS-BOT-BC36766  Brassica rapa Ira L. Wiggins 1965-11-3 20315 Orange Just east of California State College campus, Fullerton. Comment
  UCD114848  Brassica rapa Ira L. Wiggins 1965-11-3 20315 Orange Orange grove just east of California State College campus, Fullerton. Comment
  POM322  Brassica rapa J. T. Howell 1928-1-15 805 Orange Near the Ranch House. Rancho Santa Ana. 152 Comment
  RSA0043351  Brassica rapa subsp. sylvestris David Barrios 1991-5-8 36 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  UCR112098  Brassica rapa subsp. sylvestris A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23339 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  UCR267866  Brassica tournefortii D. E. Bramlet 2011-3-1 4799 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, margin of sediment basin in canyon just above the Foothill Transportation Corridor (241), c. 150 ft. east of the road 166 Comment
  UCR234137  Brickellia californica Dick Newell, Peter Wetzel 2011-8-30 218 Orange Peninsular Range; Santa Ana Mtns., Black Star Canyon Rd. and Edison Rd. 502 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
  RSA655022  Brodiaea filifolia David E. Bramlet 1998-5-21 2625 Orange On slope adjacent to a tributary of Segunda Deshecha Canada, approximately 610m north of the existing access road (Telaga Valley Dr.) and 2.9 km north of Avenida Pico., The site is approximately 1.93 km west of Cristianitos Canyon & 640m west of Wilson Camp Road. 201 Comment
  RSA627785  Brodiaea jolonensis Scott D. White 1998-4-9 6265 Orange University of California, Irvine campus: Site of proposed Research Park. Southwest of main campus circle, ca. halfway between Berkeley Avenue and new freeway (Bonita Canyon). 37 Comment
  UCR107850  Brodiaea jolonensis Scott D. White 1998-4-9 6265 Orange UC Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Ave. and the new Fwy (Bonita Canyon) 37 Comment
  RSA0127606  Brodiaea terrestris subsp. kernensis Fred M. Roberts 2016-4-14 8036 Orange University of California, Irvine campus: western edge of School of Medicine Complex, about 0.9 km W center of campus. 27 Comment
  CAS-BOT-BC144328  Bromus Ira L. Wiggins 1966-3-5 20519 Orange About 0.5 mile west of El Torro Post Office, along Highway S-18. Comment
  RSA5928  Bromus carinatus C. B. Wolf 1932-7-2 3824 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  SEINET14397348  Bromus carinatus D. L. Croninger 1964-12-15 18 Orange Fullerton Jr. College on Chapman Ave., Fullerton. Comment
  UCD58368  Bromus catharticus John Thomas Howell 1956-3-11 30922 Orange Yorba Linda. Comment
  CAS-BOT-BC156004  Bromus diandrus Ira L. Wiggins 1966-3-1 20483 Orange Fullerton. Orange grove at corner of South Campus Drive and State College Boulevard. 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
  UCSB21210  Bromus diandrus Leseman, Julie 1965-4-15 Orange Behind Fullerton Junior College, Fullerton Comment
  SD220024  Bromus hordeaceus Mark A. Elvin 2004-5-2 3408 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  UCR242753  Bromus madritensis Fred M. Roberts 2012-5-10 7581 Orange SAN JOAQUIN HILLS: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit 154 Comment
  RSA697038  Bromus rigidus var. gussonei Keith E. Hoffmaster 1927-5-2 s.n. Orange Santa Ana Comment
  RSA0042732  Bromus rubens David Barrios 1991-5-1 18 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA696330  Bromus rubens Keith E. Hoffmaster 1928-4-25 s.n. Orange Santa Ana Comment
  CLARK-A1528-972  Bromus willdenowii Patricia A. Andrews 1975-6-26 5918 Orange Capistrano Bay Beach 9 Comment
  RSA484552  Cakile edentula F. R. Fosberg 1930-7-10 S- 3174 Orange Anaheim Landing. [Los Angeles Co. on label] 2 Comment
  POM543  Cakile edentula subsp. edentula D. L. Crawford 1916-7-28 s.n. Orange Abalone Point Comment
  CSUSB527  Cakile maritima Cesareo Perez 1971-5-12 S. N. Orange Huntington State Beach, Pacific Coast Highway at Brookhurst Comment
  UCD114944  Cakile maritima Earl Brown; Tracy Brown 1993-5-2 s.n. Orange Calafia Beach Park, found 10' S of entrance to the beach (just before railroad tracks). 6 Comment
  RSA737894  Calandrinia breweri R. E. Riefner 2008-5-15 08 -82 Orange Irvine Ranch Reserve, N Irvine Ranch, eastern Fremont Canyon area, Black Star SCE road. 549 Comment
  SBBG122652  Calandrinia breweri A. C. Sanders, F. M. Roberts, A. O'Neal 2008-5-9 35314 Orange Weir Cyn, along fire line/bulldozer cut, ca. 1.5 mi E of Walnut Cyn Reservoir 346 Comment
  SEINET6168371  Calandrinia breweri R. E. Riefner Jr. 2008-1 08 -31 Orange Irvine Ranch Reserve, North Irvine Ranch, S of Windy Ridge Rd. ca. 0.5 mi from West Fork of upper Fremont Canyon. USGS 7.5' Quad: Black Star Canyon 496 Comment
  UCR203902  Calandrinia breweri R. E. Riefner Jr. 2008-5-16 08- 86 Orange Irvine Ranch Reserve, north Irvine Ranch, lower eastern Fremont Canyon area, Lakeview SCE Road 549 Comment
  UC1929694  Calandrinia breweri R. E. Riefner Jr. 2008-5-20 08 -104 Orange Irvine Ranch Reserve, North Irvine Ranch, western Fremont Canyon, Windy Ridge Rd. Comment
  CAS-BOT-BC132257  Calochortus catalinae Philip A. Munz 1949-5-26 13379 Orange Head of Sierra Canyon, Santa Ana Mts. 731 Comment
  JEPS61646 Image available Calochortus catalinae Alice King Apr 1908 Orange Santa Ana Mountains Comment
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Feb 24 2018
  RSA0125887  Calochortus catalinae Fred M. Roberts 2008-5-14 6970 Orange Lomas de Santiago: Loma Ridge, Bee Peak, 0.1 km W summit. 515 Comment
  RSA539373  Calochortus catalinae Fred M. Roberts, Karlin G. Marsh 1989-3-7 4192 Orange Lomas de Santiago: Loma Ridge, tributary to Hicks Canyon, ca. 1.9 kilometers WSW Bee Survey Mark. 134 Comment
  RSA649058  Calochortus catalinae D. E. Bramlet 2000-4-17 2987 Orange West of Blind Canyon and north of Irvine Park and SW of the MDW [Metropolitan Water District] access road. 220 Comment
  RSA734347  Calochortus catalinae A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34639 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 396 Comment
  RSA741727  Calochortus catalinae R. E. Riefner 2008-4-15 8 -71 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fremont Canyon, lower Coalmine SCE Rd. 301 Comment
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Jul 2 2014
  RSA747606  Calochortus catalinae Fred M. Roberts 2000-5-4 5313 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., west of SR 241, 1.9 km E Rattlesnake Reservoir dam and 2.1 km WSW Bee Peak. 210 Comment
  RSA747612  Calochortus catalinae Fred M. Roberts 2000-4-27 5302 Orange Lomas de Santiago: Lomas Ridge, Agua Chinon Wash, 1.5 km S Bolero Spr. and 2.1 km WSW Bolero Lookout. 281 Comment
  RSA769608  Calochortus catalinae E. W. Lathrop 1966-5-23 6098 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  UCR191352  Calochortus catalinae A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34639 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  UCR215276  Calochortus catalinae Fred M. Roberts 2008-5-7 6938 Orange Lomas de Santiago, Limestone Ridge between Dripping Spring and Limestone Canyon, 3.5 km NW of Bolero Lookout and 1.7 km east of Bee Peak. Irvine Ranch Conservancy 481 Comment
  UCR27224  Calochortus catalinae E. W. Lathrop 1966-3-23 6098 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  RSA561495  Calochortus plummerae Steve Boyd, Kyle Boyd 1992-7-9 7655 Orange Northern Santa Ana Mountains, along the main crest of the range, north of Pleasants Peak and south of Oak Flat (aka Oat Flat), 1.5 miles south of junction of Main Divide and Skyline Roads. Comment
  IRVC28857  Calochortus plummerae Mark A. Elvin 2005-5-14 4312 Orange UCI Arboretum Southern Coastal 15 Comment
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Oct 3 2013
  RSA68633  Calochortus splendens Frank W. Peirson 1924-5-31 4669 Orange 5 miles southeast of Laguna Beach. Comment
  RSA732148  Calochortus splendens A. C. Sanders, Fred M. Roberts 2008-4-22 35013 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
  SEINET4063239  Calochortus splendens G. Sphon 1959-1 325 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest. Comment
  UCR192071  Calochortus splendens A. C. Sanders, Fred M. Roberts 2008-5-6 35247 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
  CAS-BOT-BC492697  Calochortus splendens D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach Comment
  IRVC2494  Calochortus splendens Pat McClellan 1965-5-1 s.n. Orange Coast Highway. Southern Coastal Comment
  CDA39277  Calochortus venustus R. G. Ahlefeld & R. L. Pope 1957-4-1 s.n. Orange Irvine Ranch. 0 Comment
  UC1294007  Calochortus weedii E. K. Balls 1958-6-27 23278 Orange 2.8 mi e Silverado Station; Santa Ana Mts., Silverado Canyon 731 Comment
  SEINET5259809  Calochortus weedii Unknown 1995-7-3 29 Orange from Hugh McDonald's living collection; growing in Berkeley, CA Comment
  RSA581433  Calochortus weedii var. intermedius Fred M. Roberts 1989-6-7 4376 Orange Santa Ana Mountains: Upper Gypsum Canyon along divide between Gypsum and Blind Canyon, 6.3 kilometers WSW Sierra Peak. 411 Comment
  RSA690975  Calochortus weedii var. intermedius Scott D. White, Michael Honer 2003-5-29 9428 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  RSA749648  Calochortus weedii var. intermedius D. E. Bramlet 2008-6-3 4288 Orange Upper Borrego Cyn, 215 SE of the access road and 1.35km west of Santiago Cyn Rd 435 Comment
  UCR217675  Calochortus weedii var. intermedius Fred M. Roberts 2008-5-27 7003 Orange Peninsular Range; Santa Ana Mountains Foothills, Lomas de Santiago, Loma Ridge, Hicks Canyon, c. 0.2 km beyond Hicks Canyon Gate, 2.2 km west-northwest of Bee Peak, Irvine Ranch Conservancy 213 Comment
  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
  RSA602115  Calycadenia tenella Scott D. White 1997-5-6 5042 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  RSA733692  Calycadenia tenella Keith E. Hoffmaster 1934-5-1 359 Orange San Onofre Comment
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Nov 19 2013
  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
  RSA542425  Calycadenia tenella Fred M. Roberts 1988-5-25 3979 Orange Rancho Mission Viejo: Lower Canada Chiquita, 2.0 km SSE Medium Rancho Survey Mark 88 Comment
  UCR215290  Calyptridium monandrum Fred M. Roberts, D. E. Bramlet 2008-5-13 6954 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 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
  UCR106281  Calystegia macrostegia B. G. Pitzer, M. Georgiady 1997-4-5 3079 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
  UCR191333  Calystegia macrostegia A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34616 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  UCR220027  Calystegia macrostegia Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  RSA598972  Calystegia macrostegia subsp. arida Scott D. White 1997-3-28 4843 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  SD255134  Calystegia macrostegia subsp. arida R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49796 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  LA50068  Calystegia macrostegia subsp. intermedia C. B. Wolf; 1931-3-6 1865 Orange 2 mi. from Orange County Park on the road to Anaheim 152 Comment
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Feb 5 2015
  UC536955  Calystegia sepium subsp. binghamiae Lawrence M. Booth 1932-8-5 1359 Orange E of Huntington Beach (marsh border). Comment
  RSA71116  Calystegia sepium subsp. limnophila F. W. Peirson 1926-9-26 7086 Orange Wintersberg. Near to sea level. Comment
  HSC6359  Calystegia soldanella B. Francis 1964-5-2 42 Orange .5 mi. S of Newport Comment
  JEPS47849  Calystegia soldanella Alice King June 1908 Orange Newport Comment
  RSA3184  Camissonia bistorta Carl B. Wolf 1938-3-8 2679 Orange Newport Bay, low bluffs bordering area, 1/2 mile north of Corona del Mar. 8 Comment
  RSA466969  Camissonia bistorta M. B. Dunkle 1933-4-9 3280 Orange Dana Point. Comment
  RSA732239  Camissonia bistorta A. C. Sanders, Fred M. Roberts 2008-4-22 35044 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  UCR12582  Camissonia cheiranthifolia subsp. cheiranthifolia J. S. Davis 1972-5-6 720506- 16 Orange South Coast, Newport Beach, 100 yards from the corner of San Joaquin Hills Road and Back Bay Road. 0 Comment
  POM180497  Camissonia cheiranthifolia subsp. suffruticosa L. R. Abrams 1917-6-23 6576 Orange Balboa Comment
  RSA5292  Camissonia cheiranthifolia subsp. suffruticosa B. D. Stark 1933-1-17 1757 Orange Dana Point. 15 Comment
  RSA698255  Camissonia cheiranthifolia subsp. suffruticosa Minor Warne 1934-04 s.n. Orange Sand hills along the coast. Comment
  RSA539379  Camissonia hirtella Fred M. Roberts, C. A. Roberts 1988-6-2 4036 Orange Santa Ana Mountains: Silverado Canyon. Maple Springs Truck trail. 4.3 km above gate, 1.0 km WSW Bald Peak. 817 Comment
  RSA539381  Camissonia hirtella Fred M. Roberts, Carol A. Roberts 1988-6-9 4087 Orange Santa Ana Mtns.: Modjeska Peak, 0.9km SW summit. 1542 Comment
  RSA550611  Camissonia hirtella Fred M. Roberts, Carol A. Roberts 1989-4-20 4302 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
  LA206063  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Norman C. Cooper; 1944-6-3 1326 Orange Balboa Beach Comment
  CAS-BOT-BC160453  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange Sunset Beach Comment
  SD181437  Camissoniopsis cheiranthifolia subsp. suffruticosa Valeri Soza, Kevin Clark, et al. 2001-4-4 1111 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Reguge. 3 Comment
  UC1719497  Camissoniopsis cheiranthifolia subsp. suffruticosa D. Atwood 1993-3-28 17712 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game 0 Comment
  UC422961  Camissoniopsis cheiranthifolia subsp. suffruticosa D. L. Crawford 742 Orange Aliso Pt. Laguna Beach Region (shore cliffs) Comment
  UC635393  Camissoniopsis cheiranthifolia subsp. suffruticosa H. L. Mason 1926-4-25 2919 Orange five mi s Laguna Comment
  UC635403  Camissoniopsis intermedia H. L. Mason 1926-4-25 2926 Orange 5 mi s Laguna Comment
  IRVC22958  Cannabis sativa Karlin G. Marsh 1986-10-25 Orange [Santa Ana Canyon], Featherly Park; lawn weed. Yorba Linda Comment
  CAS-BOT-BC37596  Cardamine californica Reed Clark Rollins; Kathryn W. Rollins 1985-3-18 8503 Orange 16 miles east of San Juan Capistrano off state route 74. Comment
  IRVC1076  Cardamine californica E. Cowper 1965-3-1 Orange [Newport] Back Bay. Newport Beach Comment
  RSA752304  Cardionema ramosissimum Fred M. Roberts, Eliza Maher 2008-3-26 6794 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCR215305  Cardionema ramosissimum Fred M. Roberts, Eliza L. Maher 2008-3-26 6794 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of Marine Institute, Dana Point Harbor 60 Comment
  CAS-BOT-BC282975  Carduus pycnocephalus Steve Boyd; Tim Ross 1992-5-19 7427 Orange S Santa Ana Mountains, San Mateo Canyon Wilderness Area. W edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon 457 Comment
  UCSB48219  Carduus pycnocephalus Roberts, Fred 1981-6-20 Orange Dana Point; 0.7 km. NNE Dana Hills High School 67 Comment
  SBBG52701  Carex globosa C. Davidson 1977-5-18 5621 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  CAS-BOT-BC119004  Carex pellita Helen D. Geis 1902-4-1 559 Orange District Banks, near Santa Ana. Comment
  CAS-BOT-BC118489  Carex praegracilis Helen D. Geis 1902-4-1 504 Orange Unspecified Comment
  POM202036  Carex praegracilis L. M. Booth 1932-7-1 1234 Orange Anaheim Marsh Comment
  RSA542341  Carex praegracilis Fred M. Roberts, Dar A. Roberts 1989-3-22 4215 Orange Aliso-Wood regional Park: Lower Wood Canyon, 3.6 km SSE Moulton Peak. 34 Comment
  RSA697497  Carex praegracilis Elisabeth Norland 1929-4-11 s.n. Orange Cypress. Comment
  RSA76  Carex praegracilis J. T. Howell 1928-4-7 904 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UC212053  Carex praegracilis D. L. Crawford 1916-3-15 726 Orange Santa Ana river Comment
  POM201835  Carex schottii L. M. Booth 1932-6-4 1148 Orange Newport Lagoon. Comment
  RSA610230  Carex spissa Fred M. Roberts 1997-4-19 5011 Orange San Juan Canyon along San Juan Creek at CA. Rte. 74 bridge just east of San Juan Hot Springs, 0.8km SSE Juan Rancho Surbey Mark 240 Comment
  RSA797395  Carex spissa Keith E. Hoffmaster 1934-7-15 s.n. Orange Santa Ana Mts (Modjeska) Comment
  RSA640969  Carpobrotus chilensis L. C. Wheeler 1931-6-8 s.n. Orange Balboa Comment
  RSA696447  Carpobrotus chilensis Minor Warne 1934-4-7 s.n. Orange New Port Beach Comment
  RSA113270  Carpobrotus chilensis E. K. Balls 1955-4-4 20418 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101. 3 Comment
  RSA25956  Carthamus baeticus E. L. Paddock 1941-7-21 115 Orange Ridge Road along S rim of Tonner Canyon, approx. 1 mi. NE of Brea on Union Oil Lease. Comment
  RSA425876  Castilleja affinis Albert J. Perkins 1909-3-1 13722 Orange Orange Co Park. Comment
  RSA602116  Castilleja affinis Scott D. White 1997-5-6 5044 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  RSA425875  Castilleja affinis T. W. Minthorn 1928-4-1 s.n. Orange Balboa Palisades. Comment
  JEPS57258  Castilleja affinis subsp. affinis L. R. Heckard and R. C. Bacigalupi 1968-5-8 1839 Orange ca 6 mi e Orange; Irvine County Park 152 Comment
  RSA638965  Castilleja affinis subsp. affinis Valerie L. Soza, LeRoy Gross 1999-6-7 480 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UC1012367  Castilleja exserta F. W. Pennell and Carl Epling 1940-4-21 25151 Orange 5 mi e San Luis Capistrano (Route 74) 91 Comment
  RSA731797  Castilleja minor subsp. spiralis Fred M. Roberts, Sandy Leatherman 2007-11-9 6640 Orange Santa Ana Mtns.: San Juan Canyon along San Juan Creek, 0.2km E community of San Juan Hot Springs. 222 Comment
  UCR137191  Castilleja minor subsp. spiralis M. B. Dunkle 1934-6-18 3989 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon 305 Comment
  RSA702801  Caulanthus heterophyllus D. E. Bramlet, Fred M. Roberts 2003-5-1 3429 Orange Donna O Neill Reserve. The site is 412m N of Gato Cyn. and 107m W of Cristianitos Rd. 134 Comment
  IRVC24790  Caulanthus lasiophyllus Karlin G. Marsh 1989-3-4 Orange Lomas Ridge, ridge between Hicks and Rattlesnake Canyons. Lomas de Santiago 210 Comment
  RSA171009  Ceanothus crassifolius Robert F. Thorne 1963-7-26 32829 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA304748  Ceanothus crassifolius James R. Shevock 1971-2-6 1178 Orange Mojeska Cyn 396 Comment
  CAS-BOT-BC50807  Ceanothus integerrimus P. C. Everett 1935-6-19 7236 Orange Santa Ana Mts., Trabuco Canyon, 1 mi. below summit of Truck Trail 1005 Comment
  CAS-BOT-BC51167  Ceanothus leucodermis Carl B. Wolf 1941-8-15 11152 Orange Santa Ana Mts., W. slope Santiago Truck Trail 4.4 mi. belw main divide motorway 1066 Comment
  LA93870  Ceanothus megacarpus D. S. Verity; Fred Lang 1974-2-20 sn Orange hills behind South Laguna Comment
  RSA95392  Ceanothus megacarpus F. W. Peirson 1923-3-23 4192 Orange Hills back from beach, Aliso Creek, near Laguna Beach. 122 Comment
  SBBG45051  Ceanothus megacarpus var. megacarpus J. T. Howell 1927-6-26 228 Orange Claymine Cyn near Sierra Pk 701 Comment
  CAS-BOT-BC63563  Ceanothus oliganthus var. orcuttii Carl B. Wolf 1941-8-15 11157 Orange Santa Ana Mts. along main divide motorway just no. of head of Trabuco truck trail. 1219 Comment
  CAS-BOT-BC63564  Ceanothus oliganthus var. orcuttii Carl B. Wolf 1941-8-15 11157 Orange Santa Ana Mts. along main divide motorway just no. of head of Trabuco truck trail. 1219 Comment
  LA44922  Ceanothus oliganthus var. sorediatus W. Pequegnat; 1938-5-6 sn Orange Santa Ana Mountains, Indian Truck Trail 944 Comment
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Aug 29 2015
  SEINET10852447  Ceanothus oliganthus var. sorediatus Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 7 Orange Cleveland National Forest, 2 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
  UC1071194  Ceanothus palmeri A. Lewis Mar 1934 364 Orange head of Silverado Canyon Corona Quad., head of Silverado Canyon Comment
  UC1071228  Ceanothus papillosus R. St. John 1931-2-24 187 Orange Los Pinos Peak Elsinore Quad. Comment
  CLARK-A1528-3899  Ceanothus papillosus subsp. roweanus John C. Roos 1960-5-30 Orange Santa Ana Mountains 1066 Comment
  HSC46608  Ceanothus papillosus var. roweanus Christopher Davidson 1977-5-18 5598 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line) 1220 Comment
  SD41970  Ceanothus spinosus Darley F. Howe 1947-4-29 Orange Santa Ana Mts. Comment
  UC718318  Ceanothus spinosus Carl B. Wolf 1936-6-17 7950 Orange along Ortega Highway 2/10 mi w Riverside Co. Line (San Juan Canyon); Santa Ana Mts., San Juan Canyon 274 Comment
  JEPS42109  Ceanothus tomentosus John Thomas Howell 1927-6-26 2608 Orange just w Sierra Peak (head of Calymine Canyon); Santa Ana Mountains Comment
  UCR220304  Ceanothus tomentosus Dick Newell, Don Millar 2010-3-2 008 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lakeview Rd. at junction with Edison Rd., c. 1.9 mi. NE of Irvine Lake 625 Comment
  RSA171020  Ceanothus tomentosus var. olivaceus Robert F. Thorne 1963-7-26 32837 Orange In Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mts., Cleveland National Forest. 854 Comment
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Apr 25 2011
  SD234768  Cenchrus longisetus R. E. Riefner Jr. 2003-11-30 03 486 Orange South Coast: Santa Ana, 55 Freeway near Brookhollow St. 32 Comment
  RSA46  Cenchrus longispinus J. T. Howell 1927-7-18 435 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  UCR154343  Centaurea repens Mark A. Elvin 2004-5-2 3404 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA759266  Centranthus ruber Robert Allen, Reginald Durant 2008-5-9 s.n. Orange Silverado Canyon, USFS Maple Springs Forest Gate 562 Comment
  JEPS38139  Centromadia parryi subsp. australis L. M. Booth 1933-10-18 Orange Newport Comment
  UCR238167  Centromadia parryi subsp. australis Mark A. Elvin, Peter A. Bowler 2003-6-28 2957 Orange Southern Coast, Irvine, San Joaquin Freshwater Marsh, adjacent to UCI campus, SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCSB52862  Centromadia parryi subsp. australis Roberts, Jr., Fred 1985-9-17 Orange Irvine; lot between Walnut Ave., Harvard Ave. and Peter's Creek Channel; UTM 3730050mN, 426250mE 20 Comment
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Feb 22 2019
  UCR191015  Cerastium glomeratum A. C. Sanders, Fred M. Roberts 2008-4-22 35032 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 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
  CAS-BOT-BC142076  Cercocarpus betuloides Peter H. Raven 1962-5-18 17753 Orange Main Divide Truck Trail at saddle about 1 mile north of Santiago Peak - Santa Ana Mountains 1493 Comment
  RSA16975  Cercocarpus betuloides E. R. Johnson 1936-4-10 7766 Orange Santa Ana Canyon, Rancho Santa Ana, toward the head of box canyon to the north of the pear orchard. 168 Comment
  CAS-BOT-BC142124  Cercocarpus betuloides var. betuloides E. R. Johnson 1929-4-11 1261 Orange Sierra Peak Trail, Santa Ana Mts. Comment
  JEPS45547  Cercocarpus betuloides var. betuloides John Thomas Howell 1927-6-26 2612 Orange Santa Ana Mountains, Claymine Canyon Claymine Canyon; Santa Ana Mountains, Claymine Canyon 243 Comment
  UCR99869  Cercocarpus minutiflorus Scott D. White 1996-12-20 4638 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  CAS-BOT-BC279502  Chaenactis artemisiifolia John Thomas Howell 1927-6-5 2433 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  IRVC23289  Chaenactis artemisiifolia Fred M. Roberts, K. G. Marsh 1985-7-18 2053 Orange Temple Hill, Goff Ridge, 0.9km NE Goff Island off Nye Place Laguna Beach 168 Comment
  RSA16347  Chaenactis artemisiifolia Percy C. Everett 1935-6-18 7186 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  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
  RSA603363  Chaenactis glabriuscula var. glabriuscula Scott D. White, B. Leatherman 1997-6-12 5344 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
  UC149240  Chaenactis glabriuscula var. glabriuscula LeRoy Abrams 1903-4-13 3254 Orange Buena Park Comment
  RSA678495  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts, Robert L. Allen, Carol Roberts 5847 Orange Dana Point Headlands: 0.8 km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  RSA554078  Chamaesyce serpens Scott D. White 1992-5-29 864 Orange Vicinity of city of Brea, immediately N of Carbon canyon Road & E of Placentia Avenue. +-1 mi. (airline) S/SE of Tonner Canyon. 183 Comment
  SEINET3869782  Cheilanthes clevelandii M. D. Windham 1998-3-31 98 -088 Orange Along tributary of Hot Spring Canyon in the Santa Ana Mts. ca. 3.00 km SE of Crow Spring. Cleveland N.F. Canada Gobernadora Quad ( 7 1/2 min. ).; 0 320 Comment
  UC1543088  Cheilanthes newberryi Donald G. Nelson 1935-4-6 236 Orange e San Juan Capistrano (and just s of boundary of Cleveland Nat'l Forest, <canyon> branching northward from summer ranger station on main hwy); San Juan Canyon Comment
  IRVC15079  Chenopodium album T. W. Mulroy 1973-3-20 Orange Bolsa Chica [Salt Marsh] Comment
  RSA731927  Chenopodium album Fred M. Roberts, Sandy Leatherman 2007-11-27 6683 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  UCR197682  Chenopodium album A. C. Sanders, Fred M. Roberts 2008-9-18 36065 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  POM225561  Chenopodium album P. A. Munz 1936-6-30 14175 Orange 5 miles south of Garden Grove. 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
  RSA5936  Chenopodium album C. B. Wolf 1932-7-7 3838 Orange Bryant Ranch, along drainage ditch on Bixby Ave.; 100 ft. W. of Hansen Rd.; 100 ft W of corner of NE 1/4 9 Comment
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Apr 9 2014
  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
  UCSB52919  Chenopodium californicum Roberts, Jr., Fred 1983-3-10 Orange Dana Point Headlands; 0.4 km. W Dana Point Harbor; 0.7 km. S Richard Henry Dana School 80 Comment
  CDA3125  Chenopodium macrospermum A. C. Sanders, Mark A. Elvin 2003-11-9 27366 Orange Southern Coastal Slope; Irvine, San Joaquin Marsh adjacent to UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. Comment
  RSA793261  Chenopodium macrospermum R. F. Thorne 1984-1 s.n. Orange Newport Back Bay Comment
  UC536977  Chenopodium macrospermum var. halophilum Lawrence M. Booth 1932-7-19 1289 Orange Bolsas Marsh Comment
  RSA588847  Chenopodium macrospermum var. halophilum Fred M. Roberts Jr. 1989-10-26 4449 Orange Salt Creek Reservoir Park: San Juan Canyon drainage just west of ball park (old reservoir site), 1.7 km SW Salada Survey Mark and 0.4 km W end of San Juan Road. 82 Comment
  IRVC21667  Chenopodium multifidum R. L. Allen 1983-6-1 A649 Orange southwest of I5 at Sand Canyon Ave. near old dwellings on Burt Lane; a naturalized weed. Irvine Comment
  RSA581663  Chenopodium multifidum Tony Bomkamp 1995-06 s.n. Orange Rancho Mission Viejo, floodplain of Canada Gobernadora W of Casper Regional Park. 140 Comment
  IRVC393  Chenopodium murale I. L. Wiggins 20332 Orange Chapman Ave. near Kraemer Rd.; abundant along road and scattered in orange grove. Placentia Comment
  RSA749362  Chenopodium murale Fred M. Roberts 2008-4-15 6901 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn., east ridge, Conservation Trail, 1.6 km ESE Rattlesnake Reservoir dam and 2.7 km WSW Bee Peak, Irvine Ranch Conservancy. 172 Comment
  UCR233744  Chlorogalum pomeridianum Fred M. Roberts 2008-6-12 7045 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge, along 'Calochortus Ridge' near West Loma Ridge Road north of Haul Road, 2.6 km NW of Bee Peak, Irvine Ranch Land Conservancy 417 Comment
  CAS-BOT-BC497717  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 1/2 mi. above LA Vida Spring, upper Sonoran 243 Comment
  CAS-BOT-BC257199  Chorizanthe procumbens Clare B. Hardham 1962-4-4 8944 Orange Dana Point - (Beach) Comment
  UCR223955  Chorizanthe procumbens Fred M. Roberts 2008-4-2 6842 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, south of NE gate along bluff, 0.5 km west of Marine Institute, Dana Point Harbor 45 Comment
  CAS-BOT-BC255249  Chorizanthe staticoides Helen D. Geis 1902-1-1 542 Orange Hills near Santa Ana Comment
  POM2200  Chorizanthe staticoides D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach Comment
  RSA13173  Chorizanthe staticoides Percy C. Everett 1935-4-29 6711 Orange 7/10 of a mile west of Esperanza, Santa Ana canyon.. 152 Comment
  RSA392685  Chorizanthe staticoides Ella M. Kennedy 1923-5-14 s.n. Orange Laguna Beach. Comment
  RSA698368  Chorizanthe staticoides Unspecified 1933-5-27 s.n. Orange San Joaquin Hills. Comment
  UC635059  Chorizanthe staticoides Herbert L. Mason 1926-4-25 2913 Orange 5 mi below Laguna; below Laguna Comment
  IRVC22736  Chrysanthemum coronarium Fred M. Roberts 1985-5-13 1785 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  UCR154287  Chrysanthemum coronarium Mark A. Elvin 2004-5-2 3407 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  POM11896  Cirsium arvense Johnson, Ethelbert 1922-6-12 s.n. Orange Kalisco, east of Huntington Beach Comment
  RSA2092  Cirsium brevistylum B. D. Stark 1931-5-23 2230 Orange Santa Ana river bottom, SW of Ranch Houses, Rancho Santa Ana 122 Comment
  UCR190970  Cirsium occidentale A. C. Sanders, Fred M. Roberts 2008-4-22 35052 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  CLARK-A1528-1094  Cirsium occidentale Michelle Loef 1973-5-25 250573-2 Orange 91 Comment
  RSA0070676  Cirsium occidentale var. californicum R. D. Goeden, D. W. Ricker 1965-6-21 s.n. Orange Pacific Coast: Dana Point. 76 Comment
  UCR281520  Cirsium occidentale var. californicum Mitch Provance 2017-6-9 617- 93 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  POM352202  Cirsium occidentale var. occidentale M. B. Dunkle 1933-5-30 3582 Orange Santa Ana Canyon Comment
  RSA569735  Cistanthe monandra A. S. Boughey 153 Orange Santa Ana Mountains: Ortega Hwy., ca. 1 mi. east of San Juan Guard Sta. Comment
  RSA734638  Clarkia bottae A. C. Sanders, Fred M. Roberts, Amber O Neal, D. E. Bramlet 2008-5-9 35307 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  UCR132980  Clarkia purpurea Adrian Wolf 2000-4-15 461 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 335 Comment
  RSA511063  Clarkia purpurea subsp. purpurea S. J. Myers 1989-5-4 s.n. Orange Near Horsetrough Spring at the head of Black Star Canyon, Santa Ana Mountains. 640 Comment
  POM256966  Clarkia purpurea subsp. quadrivulnera W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  RSA698237  Clarkia purpurea subsp. quadrivulnera Lena Danner 1932-4-30 s.n. Orange Canyon beyond Modjeska. Comment
  UCR139447  Clarkia purpurea subsp. quadrivulnera E. R. Johnson 1933-6-1 4996 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden, 0.25 mi. SW of Muddy Springs near Roundtop Peak 427 Comment
  CAS-BOT-BC172351  Clarkia purpurea subsp. viminea Munz; Street; Williams 1919-5-3 2669 Orange Santa Ana River Canyon 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
  CAS-BOT-BC233842  Claytonia parviflora subsp. parviflora Ira L. Wiggins 1966-3-22 20548 Orange Bottom of Silverado Canyon, about 5 mi. above Ranger Station, Cleveland National Forest Comment
  RSA680553  Claytonia perfoliata Scott D. White 2003-3-21 8807 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  SFV16197  Claytonia perfoliata R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 46 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
  UC1136736  Claytonia perfoliata subsp. mexicana A. Lewis 1934-4-1 378 Orange Coal Mine; Corona Quad. 243 Comment
  UCSB48127  Clematis lasiantha Roberts, Fred 1981-4-11 Orange Santa Ana Mtns; San Juan Canyon; Hwy 74; 2.7km ENE San Juan Guard Station 325 Comment
  RSA386282  Clematis pauciflora M. B. Dunkle 1936-3-14 4701 Orange San Juan Canyon. Comment
  RSA698567  Clematis pauciflora Minor Warne 1934-4-21 s.n. Orange Blackstar Canyon Laguna Canyon Forks. Comment
  RSA3179  Cleome isomeris C. B. Wolf 1932-03 2684 Orange Low bluffs bordering Newport Bay, 1/2 mile N of Corona del Mar. 8 Comment
  RSA585183  Cleome isomeris D. Atwood 1993-3-27 17697 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  RSA66771  Cleome isomeris F. W. Peirson 1924-2-10 4529 Orange Balboa Beach, mainland near bridge Comment
  RSA789221  Clinopodium chandleri Naomi S. Fraga, Duncan S. Bell 2009-5-11 2721 Orange Chiquita Trail 762 Comment
  UCSB50632  Clinopodium chandleri Roberts, Fred 1982-7-9 Orange Santa Ana Mtns.: San Juan Canyon, 0.l km N Lower San Juan Picnic Ground 415 Comment
  RSA542395  Cneoridium dumosum Fred M. Roberts Jr. 1987-3-24 3271 Orange Laguna Beach: Goff Ridge, south of Nyes Place Rd., 0.9km NNE Goff Island. 169 Comment
  RSA702764  Cneoridium dumosum Scott D. White, Michael Honer 2004-5-17 10393 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
  RSA77080  Cneoridium dumosum F. W. Peirson 1919-11-18 2031 Orange South of Arch Beach, Comment
  RSA21803  Cnicus benedictus E. R. Johnson 1937-5-28 8767 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA34587  Collinsia heterophylla N. C. Cooper 1944-6-4 1361 Orange San Juan Canyon, lower camp ground. 457 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
  CDA22512  Conium maculatum Mark A. Elvin, B. S. Herhus 2006-11-4 5254 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  SD127479  Conium maculatum Reid Moran, Gordon Marsh and Jack Reveal 1977-6-13 24237 Orange Willow Canyon, tributary of Laguna Canyon 124 Comment
  RSA184179  Conium maculatum I. L. Wiggins 1966-5-11 20661 Orange Carbon Canyon about 1 mile above its mouth. Comment
  RSA699124  Conium maculatum J. Vlahos 1934-6-9 s.n. Orange Santa Ana River by Fairview. Comment
  IRVC968  Convolvulus arvensis E. McRae 1965-4-3 Orange Costa Mesa Comment
  UCR109771  Convolvulus arvensis R. D. Goeden, Don W. Ricker 1965-6-15 s.n. Orange NW of El Toro, Tustin Township, near Borrego Canyon Wash, SE edge of El Toro M.C. Air Station 107 Comment
  RSA697150  Convolvulus arvensis Anonymous s.n. Orange Santa Ana 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
  RSA718958  Conyza bonariensis Fred M. Roberts, Robert L. Allen 2006-10-8 6422 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
  UCR193278  Conyza bonariensis A. C. Sanders, Fred M. Roberts 2008-6-17 35512 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA573304  Conyza bonariensis Steve Boyd, Timothy S. Ross 1994-9-14 8361 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
  RSA831  Conyza bonariensis J. T. Howell 1927-9-24 755 Orange Santa Ana Botany Garden 152 Comment
  CLARK-A1528-918  Conyza canadensis Patricia A. Andrews 1975-6-26 5908 Orange Capistrano Bay Beach 9 Comment
  IRVC9121  Conyza canadensis B. T. Gittins 1966-9-26 1626 Orange 1613 Sandalwood St.; cultivated yard. Costa Mesa Comment
  RSA788803  Conyza canadensis R. F. Thorne 1977-11-21 49983 -b Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  RSA835  Conyza canadensis J. T. Howell 1927-9-24 743 Orange Santa Ana Botany Garden 152 Comment
  IRVC23904  Conyza coulteri Fred M. Roberts 1985-8-19 2127 Orange Mission Viejo: lateral to Engilish Canyon along Vista de Lago Drive; 3.4km ENE El Toro Fire Station. Southern Coastal 218 Comment
  RSA731654  Conyza floribunda Fred M. Roberts 2007-10-29 6625 Orange Laguna Beach: Temple Hill, Nyes Place, ca. 0.2 km S Moulton Meadows Park. 232 Comment
  POM202716  Cordylanthus maritimus subsp. maritimus L. M. Booth 1932-5-12 1003 Orange Newport Bay. Comment
  RSA356995  Cordylanthus maritimus subsp. maritimus Robert F. Thorne 1975-4-6 45586 Orange Head of Newport Bay. Comment
  UCR20628  Cordylanthus maritimus subsp. maritimus A. C. Sanders 1974-6-19 939 Orange Upper Newport Bay 3 Comment
  JEPS6777  Cordylanthus rigidus subsp. setiger John Thomas Howell 1927-6-26 2599 Orange Claymine Canyon Santa Ana Mts 365 Comment
  CAS-BOT-BC287839  Coreopsis californica P. A. Munz No date on label 3814 Orange Santa Ana River Canyon, near RIncon 304 Comment
  CAS-BOT-BC287840  Coreopsis californica Agnes M. Bowman 1899-5-1 s.n. Orange Unspecified Comment
  UCR239652  Coreopsis gigantea Fred M. Roberts 2012-5-4 7546 Orange San Joaquin Hills, Buck Gully, along San Joaquin Hills Road, just west of Harbor Watch Park, 2.9 km west of Signal Peak 174 Comment
  CAS-BOT-BC101295  Corethrogyne filaginifolia David D. Keck 1932-9-30 1908 Orange Dana Point, near San Juan Capistrano Comment
  CAS-BOT-BC101296  Corethrogyne filaginifolia Carl B. Wolf 1933-8-24 5394 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  HSC5418  Corethrogyne filaginifolia J. W. Johnson 1961-2-19 Orange Newport Beach, marine terrace above upper Newport Bay. Comment
  JEPS17159  Corethrogyne filaginifolia Rimo Bacigalupi 1957-4-3 5787 -A Orange 6 mi s of Irvine; Us Highway 101 Comment
  POM201779  Corethrogyne filaginifolia L. M. Booth 1932-7-29 1332 Orange Newport Bay Comment
  SFV3855  Corethrogyne filaginifolia E. B. Carlton 1961-8-26 C 3 Orange Laguna Beach. Crest of ridge north of reservoir, "Top of the World" area. 305 Comment
  RSA292463  Corethrogyne filaginifolia var. virgata James Henrickson 1972-10-21 8066 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. Irrigated grassland eventually to be used for large Newport Beach Business Center. 46 Comment
  UCR107844  Coronopus didymus Scott D. White 1998-3-24 6227 Orange Irvine. Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Av. and new freeway (Bonita Cyn) 37 Comment
  UCR217460  Coronopus didymus Mark A. Elvin 2003-2-23 2307 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  SEINET10541091  Cotoneaster pannosus Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7125 Orange In vicinity of Laguna Beach. 152 Comment
  CAS-BOT-BC287220  Cotula australis Ira L. Wiggins 1966-2-12 20434 Orange N side of La Palma Ave near Harbor Blvd, Anaheim Comment
  CAS-BOT-BC287224  Cotula australis Ira L. Wiggins 1966-2-5 20423 Orange Fairgrounds, Costa Mesa Comment
  CHSC101981  Cotula coronopifolia Sean P. Gallagher 1988-4-2 6 Orange W end of Bolsa Chica channel. 0 Comment
  HSC94229  Cotula coronopifolia D. Atwood 1993-3-29 17728 Orange Huntington Beach along Beach Blvd., 0.5 mi. N of the beach Comment
Read comments
Jul 14 2012
  UCR207795  Cotula coronopifolia O. F. Clarke 2004-4-5 s.n. Orange South Coast, Newport Back Bay 3 Comment
  RSA696048  Cotula coronopifolia Jeanne Paxton 1934-4-10 s.n. Orange Marshy land near S. A Country Club Comment
  UCD130912  Cotula coronopifolia Ronni Stachelek; Bob Anderson 1995-3-23 50 Orange Newport Beach, Upper Newport Bay, Back Bay Drive, ca. 150 m. north of San Joaquin Drive. Comment
  UC718324  Cotyledon orbiculata var. oblonga Carl B. Wolf 1936-7-8 8099 Orange western end of Newport Bay, Coast Highway Newport Bay; , Coast Highway 9 Comment
  IRVC18551  Crassula connata A. B. McGee 1981-3-28 Orange [UCI] Ecological Preserve. Irvine Comment
  RSA732122  Crassula connata A. C. Sanders, Fred M. Roberts 2008-4-8 34725 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  RSA751982  Crassula connata Fred M. Roberts 2008-3-27 6803 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  POM6361  Cressa truxillensis P. A. Munz 1919-5-4 2687 Orange Laguna Comment
  RSA5240  Cressa truxillensis C. B. Wolf 1932-9-13 4028 Orange Edge of field So. of Bryant Ave., 1/2 mi. W of Los Alamitos Blvd. 8 Comment
  LA204938  Croton californicus J. A. Ewan; 1932-7-28 7704 Orange Corona del Mar Comment
  UCR46565  Croton californicus B. G. Pitzer, D. C. Hawks 1986-10-21 0352 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi east of Santa Ana, in hills N and east of South Coast Gun Club on Jeffrey Road in Hicks Canyon 183 Comment
  CDA35289  Croton californicus Mackessy & Pope 1957-6-27 Orange Santa Ana riverbed. 0 Comment
  UCSB48014  Croton setiger Roberts, Fred 1980-9-14 Orange Santa Ana Mtns.; San Juan Canyon, 0.6 km. SW Lower San Juan Picnic Ground; 1.9 km. WNW Sitton Peak 410 Comment
  CAS-BOT-BC189254  Cryptantha Mark A. Elvin 2003-1-26 2247 Orange Between core of UCI campus (E Peltason Dr) and Highway 73, NE side UC Irvine Open Space Preserve, Irvine, South Coast 1000 Comment
  POM49205  Cryptantha clevelandii L. R. Abrams 1901-4-13 1780 Orange Laguna, San Joanquin Hills. Comment
  RSA638966  Cryptantha clevelandii Valerie L. Soza, LeRoy Gross 1999-6-7 479 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA640  Cryptantha clevelandii J. T. Howell 1928-2-25 837 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  JEPS22385  Cryptantha intermedia John Thomas Howell 1927-6-5 2435 Orange Santa Ana Canyon 152 Comment
  RSA687518  Cryptantha intermedia Fred M. Roberts, D. E. Bramlet 2003-4-10 5651 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, ridge between Cristianitos Cyn. and Segunda Deshecha Canada, 1.54km W Gato Gate and 1.59km NW Edison substation. 262 Comment
  UCR241913  Cryptantha intermedia Fred M. Roberts 2012-5-10 7563 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  RSA682916  Cryptantha microstachys Scott D. White, Amanda Duchardt 2003-5-1 9167 Orange Slopes above west side of Trampas Canyon. 107 Comment
  UCR263638  Cryptantha microstachys Ed Kentner 2012-4-19 128 Orange Foothills of the Santa Ana Mountains, Caspers Wilderness Park, Bell Canyon 160 Comment
  RSA0029035  Cryptantha microstachys Keith E. Hoffmaster 1934-4-22 349 Orange Santiago Canyon near Silverado. Comment
  RSA599588  Cryptantha microstachys Fred M. Roberts, Trish Smith, Garrett Nichols 1995-4-27 4936 Orange Irvine: San Joaquin Hills, Moro Canyon, Upper West Fork, c.a. 1.8 km SE Signal peak. 274 Comment
Read comments
Oct 25 2017
  SD247614  Cryptantha muricata R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1997-4-27 49663 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  IRVC18322  Cucurbita foetidissima J. W. Johnson 1976-8-2 Orange Upper [Newport] Bay. Newport Beach Comment
  POM201754  Cucurbita foetidissima L. M. Booth 1932-6-29 1227 Orange Newport Bay. Comment
  RSA487  Cucurbita foetidissima J. T. Howell 1927-7-28 504 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  RSA697187  Cucurbita foetidissima Anonymous 1933-1 s.n. Orange Vacant lot, Santa Ana. Comment
  UCSB48207  Cucurbita foetidissima Roberts, Fred 1981-7-8 Orange Rancho Mission Viejo: Calif. Rte. 74, 5.2 km ENE San Juan Capistrano by road 100 Comment
  POM11894  Cupressus forbesii Philip A. Munz, I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. Santa Ana River Canyon. Alluvial soil along canyon, 2d large canyon south of Orange County line. Comment
  RSA648664  Cupressus forbesii Richard E. Riefner 2000-8-3 20 -708 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and E of Windy Ridge main cypress forest 542 Comment
  RSA7199  Cupressus forbesii B. D. Stark 1933-3-17 4532 Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  RSA7204  Cupressus forbesii B. D. Stark 1933-3-17 4532 -G Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  UCR113449  Cupressus forbesii R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 451 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 518 Comment
  UCR140975  Cupressus forbesii June Latting 1973-6-30 s.n. Orange Santa Ana Mountains, 2 miles south of Sierra Peak, on road toward Skyline Drive 732 Comment
  UCR140976  Cupressus sempervirens June Latting 1973-6-30 s.n. Orange Santa Ana Mountains, Beeks Place, south of Oak Flat 854 Comment
  UCR197796  Cuscuta A. C. Sanders, Fred M. Roberts 2008-9-18 36097 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  RSA5932  Cuscuta californica C. B. Wolf 1932-7-2 3820 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA409692  Cuscuta californica Albert J. Perkins 1913-2-9 s.n. Orange Peralta. Comment
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Jun 16 2012
  RSA542644  Cuscuta californica Fred M. Roberts, Kathy Keane 1988-5-25 3980 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Marker. 85 Comment
  CDA39943  Cuscuta campestris T. C. Fuller 1958-9-26 s.n. Orange North side of Orangethorpe Ave., 0.5 mile east of Broadhurst Road, Anaheim. 0 Comment
  POM18139  Cuscuta ceanothi P. A. Munz 1923-9-7 7760 Orange Along trail from Trabuco Canyon on to Santiago Peak. 1128 Comment
  RSA232068  Cuscuta ceanothi Anonymous 1972-8-20 622 Orange Along Silverado Canyon Rd. c. 2 mi. E of jct. with Santiago Canyon Rd. Comment
  RSA788245  Cuscuta ceanothi R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49627 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  RSA610222  Cuscuta salina Fred M. Roberts, Julie Vanderwier 1997-4-29 5020 Orange Bolsa Chica Salt Marsh (US Fish & Wildlife Service cell 17); west of old oil field, 1.17 km. SSE Chica Survey Mark. 0 Comment
  SD175815  Cuscuta subinclusa D. G. Kelch 2006-12-9 06 558 Orange Irvine. University Dr. along tidal creek just E of I-73. 9 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
  CAS-BOT-BC299753  Cynara cardunculus Carl B. Wolf 1936-7-8 8100 Orange Western end of Newport Bay, Coast Highway 9 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
  IRVC29808  Cynodon dactylon Laura D. Lyons, Mark A. Elvin 2006-9-23 422 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
  RSA0089222  Cynodon dactylon Fred M. Roberts 2014-4-21 7864 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  UCR193008  Cynodon dactylon A. C. Sanders 2008-5-28 35443 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA0062647  Cynodon dactylon Jack D. Ingwersen 1962-5-30 s.n. Orange Anaheim. Comment
  POM201509  Cyperus eragrostis L. M. Booth 836 Orange Santa Ana Canyon. Comment
  RSA539371  Cyperus eragrostis Fred M. Roberts, D. Willick 1988-9-16 4136 Orange Peralata Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.0 kilmeter N Robbers Peak. 180 Comment
  UC774605  Cyperus erythrorhizos C. B. Wolf 1937-9-23 9366 Orange Rancho Santa Ana Santa Ana Canyon, Rancho Santa Ana 121 Comment
  RSA125600  Cyperus esculentus Peter H. Raven 1957-9-28 11398 Orange 1.1 miles south of Orange County line on US Highway 101. Comment
  SD28115  Cyperus laevigatus Carl B. Wolf 1932-7-2 3814 Orange Carbon Canyon ; 0.125 mile below La Vida Springs; edge of small watercourse. 213 Comment
  SD234735  Cyperus odoratus R. E. Jr. Riefner 2005-10-27 05 728 Orange South Coast: Huntington Beach, Huntington Central Park near Goldenwest St. 0 Comment
  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
  SEINET3870581  Cyrtomium falcatum R. E. Riefner Jr. 2006-9-5 06 -417 Orange Southern Coast: Corona del Mar, Ocean Blvd. near Iris Ave. (Laguna Beach 7.5'Q).; 0 11 Comment
  UC2031959  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-26 12 -11 Orange City of Laguna Beach, Aliso Creek Beach, rocky intertidal area Comment
  UCD169091  Cyrtomium falcatum R. E. Riefner Jr. 2011-7-7 11- 87 Orange City of Dana Point, S of Mussel Cove, N of Salt Creek Beach Park. 4 Comment
  UCD170386  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12- 5 Orange City of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road. 1 Comment
  UCD60300  Dactyloctenium aegyptium E. Wegener 1970-8-11 - 948 Orange Near Costa Mesa. Comment
  RSA295240  Dactyloctenium aegyptium E. Wegener 1970-8-11 LASCA- 948 Orange Near Costa Mesa. Comment
  RSA790026  Datisca glomerata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA17044  Datura wrightii Carl B. Wolf 1936-1-13 7694 Orange Santa Ana Canyon, Rancho Santa Ana, along R. R. right of way east of Ranch Houses. 137 Comment
  RSA421914  Datura wrightii N. C. Cooper 1942-11-9 886 Orange Balboa. Comment
  SD220032  Daucus pusillus Mark A. Elvin 2004-5-2 3409 Orange Irvine; San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  UCD127408  Daucus pusillus Lawrence M. Booth 1932-5-12 1033 Orange Newport Bay. Comment
  OBI21020  Deinandra fasciculata James Henrickson 1970-7-24 4963 Orange 1.5 mi NW of Huntington Beach, along border of Bolsa Chica salt marsh at SW end of Huntington Beach Mesa 8 Comment
  SDSU4571  Deinandra fasciculata unknown 1940-5-20 3134 Orange South of county. Comment
  UCR251742  Deinandra paniculata R. E. Riefner Jr. 2014-6-3 14- 143 Orange City of Laguna Beach, Moulton Meadows, NE 0.1 mi. from Del Mar Ave. and Balboa Ave. along Mentally Sensitive Trail 266 Comment
  UCR267217  Deinandra paniculata Fred M. Roberts 2014-7-25 7882 Orange South Coastal Plain, SAN JOAQUIN HILLS: Laguna Canyon, Nix Nature Center, Laguna Coast Wilderness Park, about 4.4 km E Signal Peak 126 Comment
  RSA6131  Delphinium cardinale E. R. Johnson 1932-6-14 s.n. Orange Edge of Rancho Santa Ana, Santa Ana Canyon. Alt. 450 ft. 137 Comment
  UCR231162  Delphinium cardinale Dick Newell, Judy Booth 2011-6-26 193 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Rd., NW of Hwy 74, Cleveland National Forest 965 Comment
  POM8761  Delphinium patens subsp. hepaticoideum P. A. Munz, R. D. Harwood 1920-4-24 3749 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  CAS-BOT-BC82949  Dendromecon rigida A. M. White 1974-6-1 1361 Orange North of Silverado Canyon. Ca. 20 miles east of Santa Ana. 1005 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
  RSA689542  Descurainia pinnata subsp. halictorum R. E. Riefner 1999-5-22 99 -291 Orange City of Dana Point, beach west of Pacific Coast Hwy. South of Salt Creek near Ritz Carlton Hotel. USGS Quad: dana Point. 15 Comment
  JEPS64175  Dichelostemma capitatum Alice King Mar 1908 Orange near Orange County Park; Santa Ana Comment
  UCR173401  Dichelostemma capitatum Abby Sirulnik 2000-4-11 59 Orange South Coast, Crystal Cove State Park, near Los Trancos Canyon and Pelican Hill 152 Comment
  UCR223432  Dichelostemma capitatum Dick Newell, Don Millar 2011-2-8 054 Orange Peninsular Range; Santa Ana Mtns., MWD road overlooking Boy Scout Camp, just east of outdoor education property, 1.5 mi. NW (312 deg. ) of Irvine Lake dam 257 Comment
  UCR193832  Dichondra micrantha A. C. Sanders 2008-7-3 35713 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  UCR37799  Dichondra occidentalis 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
  IRVC9143  Dichondra repens B. T. Gittins 1967-3-21 1967 Orange Orange Coast College; in shaded lawn under olive tree. Costa Mesa Comment
  RSA788966  Digitaria sanguinalis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49579 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR188995  Digitaria sanguinalis Fred M. Roberts 2007-10-29 6624 Orange South Coast, Laguna Beach, Temple Hill. Nyes Place, c. 0.2 km S of Moulton Meadows Park 232 Comment
  RSA184181  Digitaria sanguinalis I. L. Wiggins 1965-9-25 20252 Orange Fullerton. Comment
  RSA0047115  Dinebra retroflexa var. retroflexa O. F. Clarke, D. Svehla 2004-8-23 s.n. Orange Santa Ana River Valley: Yorba Linda, Yorba Regional Park, Santa Ana River bank near intersection of E. La Palma Ave. and Fairmont Blvd. 91 Comment
  RSA699271  Diosma ericoides Ruth Greenwald, Virginia Pritchard 1938-05 s.n. Orange Santa Ana. Comment
  SD220053  Diospyros lycioides subsp. lycioides Mark A. Elvin 2004-5-2 3418 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and Universit Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  SD220026  Diplachne fusca var. uninervia Mark A. Elvin 2004-5-2 3420 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  CAS-BOT-BC152261  Diplacus clevelandii C. B. Wolf 1933-11-8 5535 Orange Santa Ana Mts., Trabuco Canyon on S. wall opposite Trabuca Truck Trail 914 Comment
  RSA151106  Diplotaxis muralis P. H. Raven 1962-3-27 16992 Orange Orange County, site of Rancho Santa Ana, near Anaheim. 183 Comment
  CDA3678  Diplotaxis tenuifolia Margaret Bellue, Tubbs, Johnson Oct 1944 Orange Bataxia Street Crossing, Santa Fe. 0 Comment
  RSA743471  Distichlis spicata Fred M. Roberts 2008-10-9 7124 Orange Dana Point: Dana Point Headlands, CNLM Preserve, at base of cliff adjacent to Dana Strands Beach, 0.8km WNW Marine Institute (Dana Point Harbor). 3 Comment
  SBBG56832  Distichlis spicata M. N. Ackley -May-1929 Orange Sunset Beach 8 Comment
  SD28114  Distichlis spicata Carl B. Wolf 1932-7-2 3815 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  UCD64386  Distichlis spicata var. stolonifera C. B. Wolf Date Unknown 3815 Orange Orange Co. Comment
  CAS-BOT-BC41674  Draba cuneifolia var. integrifolia Ira L. Wiggins 1966-2-25 20477 Orange Firestone Boy Scout Reservation east of Brea. Comment
  IRVC8762  Draba cuneifolia var. integrifolia Charles W. Sexton 1965-2-12 Orange Newport Beach. Southern Coastal Comment
  CAS-BOT-BC41691  Draba cuneifolia var. sonorae Helen D. Geis 1902-1-1 529 Orange Santiago Creek. Comment
  RSA701654  Drymocallis glandulosa Keith E. Hoffmaster 1935-5-5 s.n. Orange San Juan Canyon., Santa Ana Mts. Comment
  IRVC28642  Dryopteris arguta Mark A. Elvin, A. C. Sanders 2005-9-2 4497 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 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
  RSA698474  Dryopteris arguta R. H. McArthur 1934-4-14 s.n. Orange Laguna Canyon. Hillside. Comment
  SD144155  Dryopteris arguta Scott D. White 1996-12-20 4631 Orange Above Modjeska Canyon: proposed water tank site. 420 Comment
  UCR100209  Dryopteris arguta Scott D. White 1996-12-20 4631 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR215285  Dryopteris arguta Fred M. Roberts 2008-5-14 6962 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
  RSA84221  Dudleya abramsii subsp. parva F. W. Peirson 1924-5-31 4674 Orange 5 miles southeast of Laguna Beach. Comment
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Dec 20 2019
  CAS-BOT-BC109565  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente. Comment
  CAS-BOT-BC109566  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente, atop sea bluffs Comment
  UC1015325  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente Comment
  IRVC26754  Dudleya lanceolata 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
  JEPS49887  Dudleya lanceolata John Thomas Howell 1927-7-3 2637 Orange Claymine Canyon Santa Ana Mtns Comment
  POM180505  Dudleya lanceolata L. R. Abrams 1917-6-25 s.n. Orange Balboa. Comment
  POM6592  Dudleya lanceolata P. A. Munz 1919-5-4 s.n. Orange Laguna canyon Comment
  RSA20920  Dudleya lanceolata E. R. Johnson 1937-6-20 s.n. Orange Dana Point. 15 Comment
  UCR150916  Dudleya lanceolata Valerie Soza, LeRoy Gross 1999-6-8 504 Orange Santa Ana Mountains, Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA83330  Dudleya lanceolata F. W. Peirson 1924-6-1 4675 Orange Santa Ana River. 122 Comment
  RSA660284  Dudleya multicaulis Orlando Mistretta 1992-6-6 415 Orange Vicinity of Sierra Peak, (Historical locality), on old roadcut heading down to powerlines 695 Comment
  UCR177286  Dudleya multicaulis Scott D. White, Amanda Duchardt 2003-5-1 9148 Orange Santa Ana Mountains, Slopes above the west side of Canada Gobernadora and adjacent small canyon to the west 122 Comment
  RSA13069  Dudleya pulverulenta P. C. Everett 1935-7-5 2361 Orange Rancho Santa Ana, Santa Ana Canyon hill N of Grapefruit orchard 152 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
  UCD101938  Dudleya stolonifera Reid Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  IRVC26520  Dudleya virens subsp. hassei Mark A. Elvin 2004-5-22 3448 Orange UCI Arboretum Southern Coastal 15 Comment
  CAS-BOT-BC197173  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20262 Orange To south across street from Letters and Science building, California State College at Fullerton 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
  UC729935  Echinochloa crus-galli Carl B. Wolf 1932-6-13 3720 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  RSA443850  Echinochloa crus-galli Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel (No. C05).. Comment
  IRVC27653  Echinodorus berteroi R. E. Reifner 2000-8-21 20 728 Orange Irvine Lake [Santiago Reservoir], first cove SE of the dam Santa Ana Mtns. 238 Comment
  RSA0125888  Echium candicans Fred M. Roberts 2012-5-4 7545 Orange San Joaquin Hills: Buck Gully, along San Joaquin Hills Road, just west of Harbor Watch Park, 2.9 km W Signal Peak. 174 Comment
  SBBG104111  Ehrendorferia chrysantha B. Pitzer, S. Hemstreet 1992-5-21 1948 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and on left ca. 1 mi on old paved Rd 762 Comment
  RSA588991  Ehrharta calycina D. E. Bramlet 1994-6-2 2382 Orange San Joaquin Hills. Emerald Canyon 4.4 kilometers north of Pacific Coast Highway.. Laguna Beach 75 USGS Quad: 37 16 180m N X 4 27 820m E. 226 Comment
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Sep 8 2018
  RSA799624  Eleocharis acicularis Justin M. Wood 2011-4-12 3664 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  JEPS64122  Eleocharis macrostachya L. M. Booth 1932-5-15 1202 Orange Costa Mesa Comment
  UC306105  Eleocharis macrostachya D. L. Crawford 1916-3-10 727 Orange Santa Ana River Comment
  RSA751523  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts 2008-8-7 35979 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 185 Comment
  RSA752647  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33003 Orange San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 366 Comment
  POM12446  Eleocharis palustris Phillip A. Munz 1922-9-2 6354 Orange Ponds in Laguna Canyon 46 Comment
  RSA799812  Eleocharis palustris Justin M. Wood 2011-6-28 4304 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  UCSB47988  Eleocharis palustris Roberts, Jr., Fred 1980-6-25 Orange Santa Ana Mtns., San Juan Canyon, 2.4 km. ENE San Juan Guard Station; 0.3 km. WSW Bench Mark 1100 290 Comment
  RSA735119  Eleusine coracana subsp. africana R. E. Riefner 2006-10-8 6 -474 Orange City of Irvine, San Diego Creek, between Alton Pwky. and 405 Fwy 51 Comment
  RSA735124  Eleusine coracana subsp. africana R. E. Riefner 2005-10-5 5 -718 Orange City of Yorba Linda, near Horseshoe Bend along the Santa Ana River. 102 Comment
  RSA108342  Elymus X gouldii Frank W. Gould 1943-4-17 2100 Orange Railroad siding 7 miles northeast of Amahim. Comment
  UCR209665  Elymus condensatus Fred M. Roberts 2008-5-8 6945 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
  RSA591752  Elymus glaucus E. W. Lathrop 1966-4-18 6172 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA699894  Elymus glaucus Fred M. Roberts 2003-5-1 5687 Orange Rancho Mission Viejo: Donna o'Neill Land Conservancy, Cristianitos Cyn., 0.56km SSw. Gato Gate and 0.21km W of Cristianitos Rd. 96 Comment
  RSA751316  Elymus glaucus A. C. Sanders, Fred M. Roberts 2008-5-6 35274 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  RSA0011627  Elymus glaucus Rankin s.n. Orange Silverado 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-BC131230  Encelia californica Helen D. Geis 1902-1-1 s.n. Orange Santiago Creek Comment
  RSA614340  Encelia californica B. Pitzer 1996-4-30 2792 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (Pacific Coast Hwy). Bluffs above the beach. Comment
  RSA734683  Encelia californica A. C. Sanders, Fred M. Roberts 2008-5-6 35216 Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UC54173  Encelia californica Jos. Burtt Davy 1902-4-4 Orange Orange Comment
  SEINET11859822  Encelia californica J. F. Bright, Wyman, C. 1933-3-5 8011 Orange in Santa Ana foothills Comment
  RSA723970  Epilobium brachycarpum R. E. Riefner Jr. 2005-10-5 05 -705 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. 99 Comment
  UCR231352  Epilobium canum A. C. Sanders, Kent Beaman 2011-9-27 39904 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
  POM146315  Epilobium canum subsp. canum Chas H. Quibell 1927-07 s.n. Orange Laguna Beach. Comment
  SBBG16491  Epilobium canum subsp. canum E. B. Carlton 1961-9-3 7 Orange E on Hidden Valley Rd, ca. 1 mi from Broadway and S Coast Blvd, Laguna Beach Comment
  UC284876  Epilobium canum subsp. canum P. A. Munz 1923-9-7 7764 Orange slopes from Trabuco Canyon to Santiago Peak; Santa Ana Mts. 1615 Comment
  RSA262109  Epilobium canum subsp. mexicanum H. A. Zuill 1966-7-1 269 Orange Trabuco Canyon. Comment
  UC537275  Epilobium ciliatum subsp. ciliatum Lawrence M. Booth 1932-6-4 1145 Orange Newport Lagoon Comment
  SD245162  Equisetum telmateia subsp. braunii R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49599 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  POM17838  Equisetum telmateia var. braunii Philip A. Munz 1923-9-7 7731 Orange Holy Jim Canyon, Santa Ana Mountains 609 Comment
  UCR191346  Eragrostis barrelieri A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34633 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  LA106815  Eriastrum densifolium subsp. sanctorum John Thomas Howell; 1927-8-13 2985 Orange Santa Ana Canyon Comment
  RSA0119700  Eriastrum densifolium subsp. sanctorum J. T. Howell 1927-8-13 623 Orange Santa Ana River Bottom 152 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
  RSA0122939  Eriastrum sapphirinum subsp. dasyanthum A. C. Sanders, Fred M. Roberts 2008-5-6 35222 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  RSA0121310  Eriastrum sapphirinum subsp. dasyanthum C. W. Tilforth, Annia Kowalishen 1977-6-15 1340 Orange On Rancho Santa Ana property, north side of Santa Ana Canyon. 183 Comment
  CAS-BOT-BC299499  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2943 Orange Rancho Santa Ana, Santa Ana Canyon 207 Comment
  CAS-BOT-BC299501  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2708 Orange Rancho Santa Ana Botanical Garden 207 Comment
  RSA785321  Ericameria palmeri var. pachylepis Dick Newell, Don Millar, Michael Dresser 2010-9-21 034 Orange access road on east side of Laguna Canyon Rd. at Stage Coach, 1.22 miles north of Hwy 73 toll road 111 Comment
  POM18133  Ericameria parishii P. A. Munz 1923-9-7 7767 Orange Santa Ana Mts, from Trabuco Canyon to Santiago Peak 915 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
  CAS-BOT-BC131637  Ericameria parishii var. parishii Robert F. Thorne; J. Olmsted 1963-7-26 32830 Orange In Santa Ana Mts., Cleveland Natl. Forest, Trabugo District 1188 Comment
  CAS-BOT-BC293092  Ericameria pinifolia John Thomas Howell 1927-10-22 3158 Orange On n. side of Santa Ana Canon [Canyon] 213 Comment
  UC1118814  Ericameria pinifolia H. E. Norton 1931-2-26 31 Orange San Joaquin Hills Corona Quad., San Joaquin Hills 121 Comment
  RSA696783  Erigeron foliosus Minor Warne 1934-5-19 s.n. Orange Trabuco. 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
  RSA0013964  Erigeron foliosus var. foliosus Fred M. Roberts, David E. Bramlet 2008-5-13 6956 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  RSA550599  Eriodictyon crassifolium Fred M. Roberts 1989-4-26 4315 Orange Lomas de Santiago: Lower Santiago Canyon, 10.1 km SW Sierra Peak, ca. 1.3 km NW Irvine Lake spillway. 195 Comment
  UCD169761  Eriodictyon crassifolium R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49682 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  RSA0045584  Eriodictyon crassifolium Ken Eastman 1932-5-8 s.n. Orange Saddle Back Comment
  CAS-BOT-BC189120  Eriodictyon crassifolium var. crassifolium Agnes M. Bowman 1899-6-1 s.n. Orange In Santiago Canyon Comment
  UC1925892  Eriogonum Donald G. Nelson 1936-6-5 438 Orange Hills NE of Fullerton. 91 Comment
  RSA731762  Eriogonum elongatum Fred M. Roberts, Sandy Leatherman 2007-11-9 6644 Orange San Juan Canyon along San Juan Creek. 0.2 km E community of San Juan Hot Springs. 222 Comment
  RSA542526  Eriogonum elongatum Fred M. Roberts 1986-11-5 3205 Orange Santa Ana Mountains: Upper Mabey Canyon near top of Skyline Dr., 2.7 km SE Sierra Peak, NE of Oak Flat. 259 Comment
  UC718406  Eriogonum elongatum var. elongatum Carl B. Wolf 1933-8-24 5401 Orange summit of Santiago Pk. Santa Ana Mts., Santiago Pk. 1731 Comment
  IRVC28779  Eriogonum fasciculatum Caroline Tran 2006-2-4 1 Orange San Joaquin Marsh; NW bluff edge Southern Coastal 5 Comment
  SEINET10680005  Eriogonum fasciculatum subsp. fasciculatum Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 4 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  UCR192100  Eriogonum fasciculatum subsp. foliolosum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35286 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  CAS-BOT-BC253218  Eriogonum fasciculatum var. fasciculatum Joseph Andorfer Ewan 1932-7-28 7705 Orange Corona del Mar Comment
  RSA0126615  Eriogonum fasciculatum var. fasciculatum Fred M. Roberts 2012-4-27 7498 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
  RSA542525  Eriogonum fasciculatum var. foliolosum Fred M. Roberts 1988-5-13 3971 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  RSA679229  Eriogonum fasciculatum var. polifolium Fred M. Roberts 2003-6-25 5941 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  UC537258  Eriogonum gracile L. M. Booth 1933-8-26 1386 Orange Newport Lagoon Comment
  RSA766138  Eriogonum gracile Joseph A. Ewan 1932-7-29 7738 Orange Road around Newport Lagoon. Comment
  UCSB52907  Eriogonum gracile Roberts, Fred 1984-8-14 Orange Chiquito Basin Trail; ridge between Chiquito Basin and Lion Canyon; 2.6km SSE Los Pinos Peak; 1.3km SSW Blue Jay Camp ground; Santa Ana Mtns 885 Comment
  UC1930124  Eriogonum mohavense Scott D. White 2003-6-8 9514 Orange W MOJAVE DESERT: Near Lake Los Angeles. North of Avenue O and east of 150th St. E. Comment
  UC205014  Eriogonum parvifolium F. M. Reed Aug. 1920 Orange 3 mi s Laguna Comment
  UCD100835  Eriogonum parvifolium A. C. Sanders 1990-10-6 10179 Orange Newport Bay, Westcliff Park area on the SW end of the bay, 1 km inland of Hwy 1. 1 Comment
  UC912801  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange river bottom s Walnut Grove; Rancho Santa Ana, Santa Ana Canyon 121 Comment
  UC718404  Eriogonum wrightii var. subscaposum Carl B. Wolf 1933-8-24 5404 Orange Summit of Santiago Pk. Santa Ana Mts., Santiago Pk. 1731 Comment
  CAS-BOT-BC297332  Eriophyllum confertiflorum Helen D. Geis 1902-12-1 s.n. Orange Santiago Creek Comment
  HSC5621  Eriophyllum confertiflorum T. L. Ackerman 1964-3-28 17 Orange Irvine Park Dr. inside Irvine Park Comment
  POM357960  Eriophyllum confertiflorum E. A. McGregor 1966-5-15 s.n. Orange Ortega Highway, between Lake Elsinore and San Juan Capistrano. Comment
  RSA16348  Eriophyllum confertiflorum Percy C. Everett 1935-6-18 7185 Orange Santa Ana Mountains. Main divide motorway to Santiago Peak, 1 mile from Ortega Highway. 732 Comment
  SEINET2051091 Image available Eriophyllum confertiflorum B. Pitzer 1987-4-24 504 Orange Santa Ana River at Gypsum Canyon, ca. .5 mi. N of Hwy 91. 113 Comment
  UCR193541  Eriophyllum confertiflorum A. C. Sanders, Fred M. Roberts 2008-7-3 35667 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  IRVC15150  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey 1968-7-9 380403 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  IRVC707  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey, P. Pembrook 1965-6-18 1018 Orange Los Trancos Canyon at bottom, ; chaparral. San Joaquin Hills Comment
  SBBG87346  Eriophyllum confertiflorum var. confertiflorum B. Pitzer 1987-4-24 504 Orange Santa Ana River at Gypsum Cyn, ca. 0.5 mi N of St Hwy 91 112 Comment
  SEINET10890419  Erodium botrys Greg Gust, Leith Nye 2005-3-12 Gust 566 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UCR103158  Erodium brachycarpum Scott D. White 1997-3-25 4822 Orange University of California, Irvine campus, site of proposed student recreation center, east of main campus. Existing 'Farm School' and grasslands (horse pasture) between California Avenue and Culver Drive. 30 Comment
  UCSB48064  Erodium cicutarium Fritzke, S.; Roberts, Fred 1982-4-2 Orange Laguna Niguel: hills; 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station; N of Del Avion 100 Comment
  SD152833  Erodium moschatum Steve Boyd, Tim Ross 1992-5-19 7415 Orange Santa Ana Mts, San Mateo Canyon Wilderness Area. W. edge of wilderness along Lucas Canyon Trail from access road to Rcho Carrillo 7S06 N into Aliso Canyon Comment
  RSA423  Erodium moschatum J. T. Howell 1928-2-7 824 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  SEINET7073414  Eschscholzia californica A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  RSA539383  Eschscholzia californica var. peninsularis Fred M. Roberts, Carol A. Roberts 1988-6-9 4076 Orange Santa Ana Mountains: Main Divide Truck Trail, saddle between Modjeska Peak and Santiago Pk., 0.5 km Ee summit of Modjeska Pk. 1445 Comment
  UCR237926  Eucalyptus camaldulensis Mark A. Elvin 2003-2-2 2280 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR193326  Eucalyptus camaldulensis var. camaldulensis A. C. Sanders, T. B. Salvato 2008-5-13 35370 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA0012602  Eucalyptus globulus Fred M. Roberts, Karlin G. Marsh 1988-4-25 3928 Orange San Joaquin Hills: Irvine coast, ca 1.3 km SW Pelican Hill. 43 Comment
  RSA0012603  Eucalyptus globulus D. B. Boatman 1969-3-16 6903161 Orange 1/2 mile E crossroads Newport Blvd. and Skyline Dr. Tustin. 91 Comment
  RSA753034  Eucalyptus sideroxylon A. C. Sanders, Fred M. Roberts 2008-9-18 36077 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  CHSC26435  Eucalyptus tereticornis Richard Fellows 1970-5-7 10 Orange Ca. 15 mi. NE of Fullerton on Carbon Cyn. Rd. in Telegraph Cyn. 304 Comment
  JEPS33692  Eulobus californicus John Thomas Howell 1927-6-26 2594 Orange Clyamine Canyon n. Santa Ana Mts. 304 Comment
  IRVC25150  Euphorbia albomarginata Fred M. Roberts 1986-9-3 3134 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  IRVC15144  Euphorbia crenulata A. S. Boughey 1968-7-9 391 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA787624  Euphorbia dictyosperma Keith E. Hoffmaster 1935-5-5 625 Orange San Juan Canyon., Santa Ana Mts. Comment
  POM201836  Euphorbia misera L. M. Booth 1932-7-23 1300 Orange Corona del Mar, Newport Beach. 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
  UCSB52452  Euphorbia misera Roberts, 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
  SBBG128746  Euphorbia misera R. E. Riefner Jr. 2012-10-16 12 -518 Orange City of Dana Point, Dana Point Harbor, 'Bluff Top Trail' located near Camino Capistrano and Violet Lantern Sts 35 Comment
  RSA734983  Euphorbia peplus A. C. Sanders, T. B. Salvato 2008-5-13 35371 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR193325  Euphorbia peplus A. C. Sanders, T. B. Salvato 2008-5-13 35371 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
  UCD142472  Euphorbia peplus R. Townsend 1939-12-28 152 Orange Yorba Linda. Comment
  UCSB56679  Euphorbia peplus Roberts, Jr., Fred 1984-2-4 Orange South Laguna; Aliso Canyon near mouth, 0.7 km. WNW Aliso Peak 15 Comment
  RSA680738  Euphorbia polycarpa Scott D. White 2003-3-21 8818 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA697597  Euphorbia polycarpa Anonymous s.n. Orange Orange County park Comment
  RSA797434  Euphorbia polycarpa Keith E. Hoffmaster 1927-3-13 s.n. Orange Laguna Canyon, Santa Ana Mountains. Comment
  UCR239646  Euphorbia polycarpa var. polycarpa Fred M. Roberts 2012-5-9 7553 Orange Santa Ana Mountains, Lake Forest, near Serrano Creek utility road, 0.3 m south-southwest of intersection of Commercentre and Dimension Drives 206 Comment
  UCR239867  Euphorbia serpens 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
  CDA1084  Euphorbia serpillifolia subsp. hirtula D. G. Kelch 2006-12-9 6 .534 Orange Along Newport Back Bay Dr. in side canyon. 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
  UCSB47952  Festuca microstachys Roberts, D. 1980-5-3 Orange 2.0 km West Trabuco peak (on Main divide Truck trail) 125 Comment
  CAS-BOT-BC502075  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -379 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 T. 44 Comment
  CAS-BOT-BC502097  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -383 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
  RSA0116293  Ficus microcarpa R. E. Riefner Jr. 2008-10-22 08 -312 Orange City of Laguna Beach, vicinity of West St and Pacific Coast Hwy. 8 Comment
  UC2046882  Ficus microcarpa R. E. Riefner Jr. 2014-8-8 14 -273 Orange City of Laguna Beach, E side of South Coast Highway near Diamond St. Comment
  CAS-BOT-BC474735  Ficus rubiginosa R. E. Riefner, Jr. 2015-8-27 15 -356 Orange City of Laguna Beach, S side of Beach St. E of Broadway Ave (Hwy 133) 7 Comment
  CAS-BOT-BC474736  Ficus rubiginosa R. E. Riefner, Jr. 2015-8-27 15 -358 Orange City of Newport Beach, Corona del Mar, on Marguerite Ave. at Fifth Ave. 42 Comment
  RSA588652  Filago californica Fred M. Roberts, Carol A. Roberts 1990-5-23 4657 Orange Santa Ana Mts.: West Fork, Upper Long Canyon, Main Divide Truck Trail, 4.3 km SE Los Pinos Peak. 753 Comment
  RSA797822  Filago gallica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49811 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR106279  Filago gallica B. G. Pitzer, M. Georgiady 1997-4-5 3087 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  LA207689  Frangula californica subsp. cuspidata P. C. Everett; 1935-6-18 5451 Orange Santa Ana Mountains, summit of Santiago Peak 1731 Comment
  SBBG27470  Frangula californica subsp. cuspidata P. C. Everett 1935-6-18 Orange summit of Santiago Pk 1731 Comment
  RSA391402  Frankenia grandifolia E. Yale Dawson 1948-8-15 5108 Orange Bolsas bay Comment
  RSA5859  Frankenia grandifolia Carl B. Wolf 1932-6-28 3784 Orange Edge of field on Bryant Ave. 9 Comment
  UCSB68455  Frankenia salina Fishman, Paul; Williams, H. 1969-9-23 Orange Upper Newport Bay, below east park (bluff?) 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
  RSA734971  Fraxinus uhdei A. C. Sanders, Fred M. Roberts 2008-6-17 35464 Orange Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA304144  Fremontodendron californicum James R. Shevock 1970-3-25 67 Orange Cleveland Nat. Forest. 518 Comment
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Oct 28 2014
  UCR142544  Fritillaria biflora D. E. Bramlet 2000-4-12 2978 Orange Peninsular Ranges: Santa Ana Mountains, Tributary to Fremont Canyon, 396m northwest of the Edison Spur road and 1.2 km southeast of the Fremont ridge road; 305m southwest of knoll 1515 113 Comment
  CHSC106536  Funastrum cynanchoides var. hartwegii Robt. Allen; Alison Linden 2007-5-17 Orange Irvine, Turtle Rock community, Chaparral Park, due N of Turtle Rock Dr, due E of Highgate terrace. UTM Zone 11S; 3722013N 0424400E. 136 Comment
  RSA566  Funastrum cynanchoides var. hartwegii J. T. Howell 1927-7-24 461 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  UCSB52911  Funastrum cynanchoides var. hartwegii Roberts, Fred; Pedderson, G. 1984-9-5 Orange Coto de Caza: Wagon Wheel Canyon, 6.4km NNE Median Survey Mark; 1.0km SE Bench Mark 657, 290 Comment
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Oct 28 2018
  CAS-BOT-BC304316  Galinsoga parviflora A. C. Sanders; Fred M. Roberts 2008-5-6 35226 Orange Peninsular Range: Santa Ana Mts: Lomas de Santiago, lower Hicks Canyon, just above tollway (Highway 241) crossing on Irving Haul Rd, near debris basin 216 Comment
  RSA25774  Galinsoga parviflora var. parviflora C. B. Wolf 1941-6-3 10878 Orange Fullerton. Weed in garden of Ray M. Brown, Luanne Ave. 53 Comment
  RSA735170  Galium angustifolium A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35287 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  RSA33791  Galium angustifolium subsp. angustifolium N. C. Cooper 1944-6-4 1372 Orange San Juan Canyon. 305 Comment
  RSA542396  Galium angustifolium subsp. angustifolium Fred M. Roberts Jr., R. E. Riefner 1988-7-19 4122 Orange Modjeska Peak, west slope, along old abandoned road, 0.2 km west summit 1592 Comment
  RSA609650  Galium angustifolium subsp. angustifolium R. S. Woglum 1938-5-8 1615 Orange Peninsular Ranges: Capistrano to Elsinore; Santa Ana Mountains [Orange and Riverside counties]. Comment
  RSA688976  Galium angustifolium subsp. angustifolium Fred M. Roberts, David E. Bramlet 2003-4-10 5644 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
  UCR242701  Galium angustifolium subsp. angustifolium Fred M. Roberts 2012-5-10 7579 Orange SAN JOAQUIN HILLS: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit 154 Comment
  UCR102023  Galium aparine B. G. Pitzer 1997-3-25 3014 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  CDA42118  Galium catalinense Ahlefeld & Pope 1957-4-1 s.n. Orange Irvine Ranch. 0 Comment
  JEPS74654  Galium porrigens Lauramay T. Dempster and G. L. Stebbins 1967-3-21 4351 Orange 1 mi nw Cock's Corners (on road to Modjeska's Home, shallow canyon) Comment
  POM47660  Galium porrigens F. W. Peirson 1924-5-31 4665 Orange 5 miles southeast of Laguna Beach Comment
  RSA732278  Galium porrigens A. C. Sanders, Fred M. Roberts 2008-4-22 35042 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  UCR177290  Galium porrigens Scott D. White, Amanda Duchardt 2003-5-1 9162 Orange Santa Ana Mountains, slopes above west side of Trampas Canyon 183 Comment
  RSA749290  Galium porrigens var. porrigens Fred M. Roberts 1999-4-2 5168 Orange Lomas de Santiago: Loma Ridge, Dripping Springs Spur Rd., 2.3 km W Silverado Sch. and 5.1 km NW Bolero Lookout. 450 Comment
  IRVC1379  Garrya A. S. Boughey 1965-3-16 59 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  CAS-BOT-BC178504  Garrya flavescens Le Roy Abrams 1901-6-15 1811 Orange Santiago Peak Trail 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
  SBBG128667  Garrya flavescens R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49700 Orange Sierra Peak; n Santa Ana Mtns 900 Comment
  RSA303834  Garrya flavescens var. pallida Jim R. Shevock 1972-1-16 1334 Orange Silverado Canyon. 610 Comment
  CLARK-A1528-974  Gasoul nodiflorum Patricia A. Andrews 1975-6-26 5928 Orange Capistrano Bay Beach 9 Comment
  RSA688864  Gastridium phleoides Fred M. Roberts, David E. Bramlet 2003-4-10 5643 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  SEINET179445 Image available Gastridium phleoides L. M. Booth 1932-5-19 1082 Orange Newport Bay Comment
  RSA586252  Gastridium phleoides R. E. Riefner 1995-10-28 95 -383 Orange San Clemente State Beach Comment
  SEINET3237951 Image available 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
  UC537117  Gastridium ventricosum Lawrence M. Booth 1932-5-19 1082 Orange Newport Bay Comment
  UCR253010  Geranium anemonifolium Robert DeRuff 2012-3-7 579 Orange South Coast, Newport Back Bay, Northstar Beach park near Newport Aquatic Center 5 Comment
  JEPS61411  Geranium carolinianum Alice King Apr 1908 Orange Santa Ana Mts. Comment
  RSA588801  Geranium dissectum Fred M. Roberts 1990-5-7 4597 Orange Rancho Mission Viejo: Ridge south of Blind Canyon, TRW Lease Holding, 4.9 km NE Clemente Survey Marker. 152 Comment
  RSA450856  Gilia angelensis Gordon Marsh 1978-3-17 s.n. Orange U.C. Irvine Ecological Preserve. 85 Comment
  SEINET7073429  Gilia angelensis A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. 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
  RSA139632  Gilia angelensis John Ingram 1960-3-14 246 Orange 2 blocks east of Knotts Berry Place, on La Palma Avenue, Buena Park. Comment
  UCR252202  Gilia capitata Amanda C. Swanson 2013-4-21 27 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  RSA785635  Gnaphalium beneolens Doris Bowers 1970-10-26 1708 Orange Black Star Can. Indian site 610 Comment
  IRVC25462  Gnaphalium californicum Fred M. Roberts 1987-4-21 3385 Orange Aliso Creek, Aliso Creek Bike Trail, 3.0km ENE Moulton Peak, Aliso Viejo 73 Comment
  RSA588723  Gnaphalium californicum Fred M. Roberts 1990-5-7 4607 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  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
  UCR193463  Gnaphalium canescens subsp. microcephalum A. C. Sanders, T. B. Salvato 2008-5-13 35353 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  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
  RSA703730  Gnaphalium leucocephalum Fred M. Roberts, David E. Bramlet 2004-7-30 6088 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy Cristianitos Canyon, along Cristianitos Ck., 0.93 km SSW Gato Gate and 0.23 km W Cristianitos Road. 76 Comment
  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
  IRVC19530  Gnaphalium luteo-album R. L. Allen 1983-2-24 A644 Orange 3160 Air[way] Ave. along Paularino; weed in blue grass lawn. Costa Mesa Comment
  UCR237827  Gnaphalium microcephalum Mark A. Elvin 2003-2-2 2266 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR193495  Gnaphalium palustre A. C. Sanders, T. B. Salvato 2008-5-13 35360 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
  UCSB52897  Gnaphalium palustre Roberts, Fred 1983-3-16 Orange Laguna Beach: Sycamore Hills, central ridge, 1.5km NNE jct. El Toro and Laguna Canyon Rds.; 5.5km ESE Signal Peak 175 Comment
  RSA751162  Gnaphalium stramineum D. E. Bramlet 2008-5-16 4275 Orange Agua Chinon Wash. Site is located in an ephemeral tributary 91m NW of the access road and 1.74km NE of Hwy 241 274 Comment
  IRVC24748  Gnaphalium stramineum Fred M. Roberts 1986-4-29 2818 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  CAS-BOT-BC123700  Grindelia camporum var. bracteosa John Thomas Howell 1927-7-16 2786 Orange hills on N side of Santa Ana Canyon 182 Comment
  IRVC742  Grindelia camporum var. bracteosa M. McCartin 1965-5-2 Orange San Juan Capistrano. Southern Coastal Comment
  IRVC746  Grindelia camporum var. bracteosa L. Stilgenbauer 1965-4-5 Orange Corona del Mar, in field near Cameo Shores Rd. Newport Beach Comment
  UCR119299  Grindelia camporum var. bracteosa R. E. Riefner Jr. 2000-7-8 20- 626 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, on ridgetop overlooking W fork of Fremont Canyon, east of Main Divide Road along the powerline 396 Comment
  CAS-BOT-BC305202  Grindelia hirsutula Peter H. Raven 1959-4-30 14038 Orange Just north of San Clemente Comment
  CAS-BOT-BC305203  Grindelia hirsutula J. T. Howell 1931-6-1 6624 Orange San Clemente Comment
  UC1543105  Grindelia hirsutula Donald G. Nelson 1935-6-27 333 Orange on bluffs facing ocean beaches s Corona del Mar (s of mouth of Newport Bay) Comment
  RSA542434  Grindelia robusta Fred M. Roberts, Karlin G. Marsh 1988-4-25 3930 Orange San Joaquin Hills: Irvine Coast, 1.1km SW Pelican Hill. 44 Comment
  IRVC8688  Gutierrezia californica Charles W. Sexton 1965-3-27 Orange Ortega Highway out of San Juan Capistrano Southern Coastal Comment
  UCR220967  Gutierrezia californica Dick Newell, Don Millar 2010-8-31 033 Orange Peninsular Range; Santa Ana Mtns. Foothills, Edison Road above Irvine Lake, 0.9 miles west of Black Star Canyon Rd. 412 Comment
  UCSB48104  Gutierrezia californica Fritzke, S.; Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: San Juan Canyon, Calif. 74, 0.9km E San Juan Guard Station 269 Comment
  CAS-BOT-BC302137  Gutierrezia sarothrae John Thomas Howell 1927-7-28 2866 Orange In hills on n. side of Santa Ana Canon [Canyon] 182 Comment
  RSA701808  Gutierrezia sarothrae Fred M. Roberts 2000-6-8 5339 Orange Chino Hills: Yorba Linda, on ridge between Box and Lost Trough Canyons, c.a. 1.2km NE Bench Mark 388 266 Comment
  SEINET10605899  Hainardia cylindrica Alan A. Beetle 1942-4-19 Beetle 3092 Orange 20 miles south of Santa Ana, road to Laguna, heavy clay mud of back beach. Comment
  UCR197707  Haplopappus menziesii A. C. Sanders, Fred M. Roberts 2008-9-18 36078 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  LA202463  Haplopappus palmeri subsp. pachylepis Lawrence M. Booth; 8853 Orange Newport Beach Comment
  UCR197795  Haplopappus squarrosus A. C. Sanders, Fred M. Roberts 2008-9-18 36098 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon at the highway bridge above Irvine Lake 300 Comment
  UCR80035  Haplopappus squarrosus Scott D. White 1992-10-1 954 Orange City of Brea, immediately north of Carbon Canyon Road & east of Placentia Ave. c. 1 mi (airline) S-SE of Tonner Canyon. 183 Comment
  UCR113457  Harpagonella palmeri R. E. Riefner Jr. 2000-4-27 20- 391 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running south from Baker Canyon Road to Silverado Road 335 Comment
  RSA0066584  Harpagonella palmeri Karlin G. Marsh, Gordon Marsh 1991-6-10 s.n. Orange Laguna Beach: Temple Hill in South Laguna, E slope above Aliso Canyon 1.5 km N Aliso Peak. 185 Comment
  RSA871  Hazardia squarrosa var. grindelioides J. T. Howell 1927-10-22 758 Orange Bluffs near eastern boundary, Rancho Santa Ana 213 Comment
  UC1424954  Hazardia squarrosa var. grindelioides C. W. Tilforth 1972-8-20 624 Orange County Rd. S 19 between Cooks Corner and O'Neill Park Comment
  RSA134384  Hedypnois cretica C. Epling 1943-3-27 s.n. Orange S of Sunset Beach. Comment
  RSA749471  Hedypnois cretica Fred M. Roberts, Linda Farley 2008-3-28 6826 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  UCR190995  Hedypnois cretica A. C. Sanders, Fred M. Roberts 2008-4-22 35059 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  RSA0057939  Hedypnois cretica Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49670 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UC537124  Helenium puberulum Lawrence M. Booth 1932-7-19 1285 Orange Bolsas Marsh Comment
  RSA16357  Helianthemum scoparium var. aldersonii P. C. Everett 1935-6-18 7175 Orange Santa Ana Mts., San Juan Canyon, near Ortega Highway on Road to Santiago Pk, 701 Comment
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Dec 14 2011
  RSA0096954  Helianthemum scoparium var. aldersonii P. A. Munz 1923-6-14 7054 Orange Glen Ivy Trail to Santiago Peak. 1220 Comment
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Feb 22 2019
  POM12888B  Helianthemum scoparium var. vulgare P. A. Munz, J. M. Johnston, I. M. Munz 1922-5-18 5307 Orange Santa Ana River Canyon. 274 Comment
  RSA184154  Helianthus annuus subsp. lenticularis I. L. Wiggins 1965-5-24 20285 Orange Roadside along Skyline Dr. near intersection with Raymond St. Fullerton. Comment
  UC774835  Helianthus ciliaris E. Paddock 1942-7-21 11291 Orange n side Ocean Ave. 1/4 mi w La Mirada Rd.; La Habra, Toler Ranch Comment
  UCR109773  Helianthus ciliaris R. D. Goeden, Don W. Ricker 1965-7-7 s.n. Orange Laguna Hills, Veeh Ranch, c. 1.5 mi. west of El Toro 91 Comment
  CDA6535  Helianthus ciliaris T. C. Fuller 1962-6-7 8871 Orange Union Oil lease, Deodora Street, 1.2 east of Brea Boulevard, Brea. 0 Comment
  RSA7324  Helianthus gracilentus E. R. Johnson 1933-7-6 5167 Orange 1/2 mile south of Mexican houses, Rancho Santa Ana 122 Comment
  RSA874  Helianthus gracilentus J. T. Howell 1927-7-3 256 Orange Claymine Canyon near Sierra Peak. 305 Comment
  SBBG104036  Helianthus gracilentus B. Pitzer, H. Hemstreet 1992-5-27 1963 Orange Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd Comment
  RSA784269  Helianthus gracilentus J. D. Olmsted 1959-8-26 838 Orange Along road from mouth of Black Star Canyon by Rock Crushing Plant.; Mt. range: Santa Ana Mts (N end); drainage area: to Santiago Res[ervoir]. 305 Comment
  SD87639  Helianthus nuttallii subsp. parishii F. W. Peirson 1924-10-19 5247 Orange Wintersberg Comment
  RSA92493  Helianthus nuttallii subsp. parishii F. W. Peirson 1924-10-19 5246 Orange Wintersberg. Comment
  POM319997  Heliotropium curassavicum var. oculatum Greg Wright 1971-7-17 313 Orange Pacific Coast Highway south of Laguna, Aliso Creek, inland from highway. 8 Comment
  POM369737  Heliotropium curassavicum var. oculatum F. R. Fosberg 1930-7-10 3196 Orange Anaheim Landing. [Los Angeles Co. on label] 5 Comment
  RSA752718  Heliotropium curassavicum var. oculatum Fred M. Roberts 2009-4-21 7157 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  RSA5865  Heliotropium curassavicum var. oculatum C. B. Wolf 1932-9-13 4021 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
  CAS-BOT-BC305899  Helminthotheca echioides Ira L. Wiggins 1965-11-5 20322 Orange Near corner of Dowling Street and Crowther Avenue. 1/2 mi. S of Placentia Comment
  UCD132945  Helminthotheca echioides P. B. Kennedy 1924-2-13 s.n. Orange Huntington Beach District. Comment
  UCD132946  Helminthotheca echioides P. B. Kennedy 1924-2-13 s.n. Orange Huntington Beach District. Comment
  RSA594890  Hemizonia australis Fred M. Roberts 1992-9-9 4847 Orange Irvine: San Joaquin Freshwater Marsh, 2.0 km NW University of California Irvine campus center 2 Comment
  RSA807  Hemizonia australis J. T. Howell 1927-6-30 234 Orange Bryant Ranch near Long Beach. 15 Comment
  CDA7030  Hemizonia fasciculata E. Dudley 1951-5-1 Orange Costa Mesa. 0 Comment
  POM5000  Hemizonia fasciculata H. M. Hall 1906-6-19 7411 Orange Gypsum, Santa Ana Canyon 122 Comment
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Sep 4 2011
  RSA734989  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35279 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR209334  Hemizonia fasciculata Fred M. Roberts 2008-7-10 7064 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
  RSA0038312  Hemizonia fasciculata Louis C. Wheeler 1932-6-25 861 Orange Bluff on north side Newport Bay. 6 Comment
  RSA654262  Hemizonia fasciculata Ian Thompson 1997-4-28 59 Orange Cal Poly Ecological Reserve, in front of southern gate into reserve. Comment
  POM360305  Hemizonia kelloggii M. B. Dunkle 1938-6-23 5383 Orange San Juan Canyon. Comment
  RSA704074  Hemizonia paniculata D. E. Bramlet, Fred Roberts 2003-5-8 3432 Orange Donna O'Neill Reserve. SE area of the reserve 305m west to Cristianitos Rd. and 762m south of the E-W access road. 101 Comment
  UCSB52949  Hesperocnide tenella Roberts, Fred; Allen, R. 1983-3-27 Orange Dana Point Headlands: above Dana Strand Beach, 0.9km W Dana Point Harbor; 1.0km SW Richard Henry Dana School 40 Comment
  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
  RSA0072403  Heteromeles arbutifolia Steve D. Boyd, Bart O'Brien 1998-1-13 10071 Orange Santa Ana Mountains: north end of the range, W of Sierra Peak along Main Divide Road (3S04), ca. 0.5 mi from summit of peak near head of Coal canyon. 774 Comment
  RSA735169  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35277 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCD113321  Heteromeles arbutifolia K. M. Meyer; A. Townesmith and T. Scott 2007-3-10 3 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  CAS-BOT-BC318905  Heterotheca grandiflora Ira L. Wiggins 1965-9-6 20354 Orange Kraemer Oil Estates near Well #14 near end of county road to Rancho Santa Ana Comment
  CAS-BOT-BC318906  Heterotheca grandiflora Ira L. Wiggins 1965-10-24 20284 Orange Roadside along Skyline Drive near intersection with Raymond Street, Fullerton Comment
  CAS-BOT-BC318908  Heterotheca grandiflora John Thomas Howell 1927-9-24 3112 Orange North side of Santa Ana Canyon 365 Comment
  JEPS20382  Heterotheca grandiflora L. M. Booth 1932-5-25 1112 Orange Balboa Island Newport Bay, Balboa Island Comment
  RSA0075821  Heterotheca grandiflora Scott D. White, Matt Carlton 2003-11-20 9875 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  RSA0075824  Heterotheca grandiflora A. C. Sanders, Fred M. Roberts 2008-7-3 35697 Orange Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  SD39720  Heterotheca grandiflora Edith A. Purer 1932-8-31 4877 Orange Along Highway 101. Comment
  RSA0045507  Heterotheca grandiflora William Blanchard 1932-4-24 s.n. Orange Near Irvine. PR8. Comment
  UCR195016  Heterotheca sessiliflora A. C. Sanders, Fred M. Roberts 2008-8-7 35973 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  POM201843  Heterotheca sessiliflora subsp. echioides L. M. Booth 1932-7-29 1330 Orange Newport Lagoon Comment
  UCR224404  Hibiscus trionum Robt. L. Allen 2008-4-9 s.n. Orange South Coast, Irvine, Irvine Valley College, near norhteast corner of Student Services building 45 Comment
  RSA759278  Hibiscus trionum Robt. Allen 2008-4-9 s.n. Orange Irvine, Irvine Valley College, near NE corner of student Services building. 45 Comment
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Aug 2 2019
  RSA405279  Hoffmannseggia glauca T. W. Minthorn s.n Orange Santa Ana Mnt. Comment
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Nov 15 2013
  POM201849  Hoita macrostachya L. M. Booth 1932-7-1 1236 Orange Anaheim Marsh Comment
  RSA7325  Hoita macrostachya E. R. Johnson 1933-7-6 5168 Orange 1/2 mile south of Mexican houses, Rancho Santa Ana 122 Comment
  SBBG128672  Hoita macrostachya R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49564 Orange San Juan Cyn at Lower Picnic Camp, just below Ortega Hwy (74); Santa Ana Mtns Comment
  RSA724057  Holocarpha virgata subsp. elongata R. E. Riefner 2003-10-14 03 -421 Orange San Clemente State Beach, mima mound field in SW corner of park. 27 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
  UC1127989  Holodiscus discolor A. Lewis 1934-5-1 423 Orange Cleveland National Forest, Trabuco Canyon Trabuco Canyon; Cleveland National Forest, Trabuco Canyon 1280 Comment
  POM352449  Hordeum depressum Anonymous 1914-7-5 s.n. Orange Newport Bay Comment
  SD181760  Hordeum depressum Valerie Soza, K. Clark,F. Roberts,W. Miller,L. R. Gross,G. Wallace 2001-4-4 1132 Orange Northern edge of Huntington Harbor: Seal Beach U.S. Naval Weapons Station, southeastern edge of Seal Beach National Wildlife Refuge, along roadside 3 Comment
  RSA0042733  Hordeum glaucum David Barrios 1991-5-1 10 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA542370  Hordeum intercedens Fred M. Roberts 1988-4-12 3927 Orange Irvine: south of the San Diego Freeway, 1.2 km ENE French Hill., UTM 3724500m N, 427200m E 41 Comment
  RSA642528  Hordeum intercedens D. E. Bramlet 1998-5-19 2620 Orange San Juan Hills. 1.13km west of La Pata Ave. and 1.22km north of Prima Deshecha Canada. On a ridgeline 213m east of a small canyon., UTM 11S 04 41 816mE X 37 06 152mN. 152 Comment
  UCR158162  Hordeum intercedens Adrian Wolf, David Charlton 1998-5-4 197 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, Aliso Canyon 0.75 km SW of Woods Canyon, 2.25 km NNW of Aliso Water Treatment Plant, north of access road 30 Comment
  UCR85724  Hordeum marinum Scott D. White 1993-4-28 1282 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  RSA542369  Hordeum marinum subsp. gussoneanum Fred M. Roberts, Kathy Keane 1988-5-25 3988 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark: UTM 3710250m N, 443600m E 82 Comment
  CAS-BOT-BC289365  Hordeum murinum subsp. glaucum Ira L. Wiggins 1966-3-19 20537 Orange Irvine Ranch, southeast of U.C. Irvine Comment
  RSA0089223  Hordeum murinum subsp. leporinum Fred M. Roberts 2014-4-21 7863 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  RSA737485  Horkelia cuneata subsp. puberula D. E. Bramlet 2008-4-28 4250 Orange East fork of Upper Weir Cyn., on the S. side of the existing access road. The site is 1.6km east of the main cyn. and 183m west of the Upper boundary of Gypsum Cyn. 406 Comment
  UC582823  Horkelia cuneata subsp. puberula Philip A. Munz 1936-4-20 14606 Orange Laguna Beach Mt. Olympus 152 Comment
  CAS-BOT-BC539350  Hypericum canariense R. E. Riefner, Jr. 2010-6-9 10 -56 Orange City of San Juan Capistrano, La Novio Ave. at Valle Rd. 45 Comment
  RSA769302  Hypericum canariense R. E. Riefner Jr. 2010-6-9 10 -52 Orange City of San Juan Capistrano, along McKraken View Trail at San Juan Creek Rd., E of I-5 Freeway. 51 Comment
  UCR209666  Hypericum canariense Fred M. Roberts 2008-5-8 6946 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near the northeast Gate, 0.5 km west of the Marine Institute, Dana Point Harbor 75 Comment
  RSA732168  Hypochaeris glabra A. C. Sanders, Fred M. Roberts 2008-3-25 34538 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR98131  Hypochaeris glabra George K. Helmkamp, E. A. Helmkamp 1997-4-24 1659 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  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-BC311672  Isocoma menziesii var. sedoides David D. Keck 1932-9-30 1902 Orange 2 mi. W. of Laguna Beach 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
  RSA5239  Isocoma menziesii var. vernonioides C. B. Wolf 1932-9-13 4027 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd. (Triangle waste ground at NW corner of SW 1/4 sect. 30 T4S R11W) 8 Comment
  UCD133428  Isocoma menziesii var. vernonioides Lyman Benson 1946-7-8 12105 Orange Corona Del Mar. Comment
  CAS-BOT-BC112434  Isolepis cernua Mark A. Elvin; D. Kelch 2006-12-9 5302 Orange Southern Coastal: Newport Backbay, Big Canyon, lower end. 3 Comment
  CLARK-A1528-2387  Isomeris arborea John C. Roos 1937-2-23 1314 Orange Laguna Hills Comment
  RSA658217  Isomeris arborea T. A. Daubert 1991-5-26 664 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, fire road. Comment
  RSA702688  Isomeris arborea Scott D. White, Michael Honer 2004-5-17 10395 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  RSA695718  Isomeris arborea var. globosa Keith E. Hoffmaster 1927-4-5 s.n. Orange Near Newport, Santa Ana Mountains Comment
Read comments
Aug 27 2011
  RSA5819  Iva axillaris subsp. robustior C. B. Wolf 1932-6-28 3804 Orange Edge of field on Bixby Ave. 750 ft. east of SW corner of NW 1/4 of NW 1/4 of Sect. 33. Comment
  SEINET4691552  Iva hayesiana R. E. Riefner Jr. 2013-1 13 -206 Orange City of Hunington Beach, N of Pacific Coast Highway along Santa Ana River trail. W side Santa Ana River 7 Comment
  POM361340  Jaumea carnosa F. R. Fosberg 1930-7-10 3180 Orange Anaheim Landing. [Los Angeles Co. on label] 1 Comment
  RSA234472  Jaumea carnosa James Henrickson 1970-7-25 5040 Orange 2.5 miles NE of Huntington beach, 1 mile SE of Warner Ave. on sandy slope of E. Pacific Coast Hwy. at border of Bolsa Chica Salt Marsh. 0 Comment
  RSA92200  Jaumea carnosa F. W. Peirson 1924-8-29 5076 Orange 3 miles from Balboa Beach. Comment
  POM265664  Jepsonia parryi J. C. Roos 1936-10-9 2301 Orange Santa Ana Canyon, near Orange County line. Comment
  RSA701954  Jepsonia parryi Fred M. Roberts, Robert L. Allen 2004-1-16 6021 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.63 km SSW Gato Gate and 0.23km W of Cristianitos Rd. 107 Comment
  RSA594900  Jepsonia parryi Fred M. Roberts Jr. 1991-11-17 4824 Orange Lomas de Santiago: Foothill Ranch, north of El Toro Road, ca. 5.0km SSE Bolero Lookout. 274 Comment
  UC112093  Juglans E. B. Babcock 1907-9-9 Orange on ranch of E.S. Ware 1 mi n Garden Grove Comment
  CAS-BOT-BC402183  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
  OBI30181  Juglans californica Czarnecki 1966-5-8 104 Orange La Vida springs in Carbon Cyn Comment
  RSA0011055  Juglans californica D. E. Bramlet 2008-6-5 4291 Orange Santa Ana Mtns foothills: Tributary to Weir Cyn., 731 m N of the SCE Transmission Line & 229m west of Weir Canyon Road. 257 Comment
  UCR222643  Juglans californica D. E. Bramlet 2008-6-5 4291 Orange Peninsular Range; Santa Ana Mtns. Foothills, tributary to Wier Canyon, 731 m north of SCE transmission line and 229 m west of Weir Canyon Rd. 257 Comment
  RSA0011057  Juglans californica J. R. Bruff 1936-11 s.n. Orange Durant St. Santa Ana. Comment
  RSA0011065  Juglans californica Lyman Benson 1947-4-27 12340 Orange Carbon Canyon. Mr. Range: Puente Hills; Drainage area: Pacific Slope. 244 Comment
  RSA0011067  Juglans californica Gary D. Wallace 1964-5-22 s.n. Orange Santa Ana Canyon Comment
  RSA0011068  Juglans californica Carl B. Wolf 1934-9-21 6141 Orange At lower end of Brea Canyon, Puente Hills 183 Comment
  CAS-BOT-BC334501  Juglans hindsii R. E. Riefner, Jr. 2010-9-8 10 -121 Orange City of Laguna Beach, Laguna Canyon, ca 0.15 mi S of El Toro Rd. on E side of Laguna Canyon Rd. 75 Comment
  SD248444  Juglans hindsii R. E. Riefner Jr. 2013-11-6 13 233 Orange City of Laguna Beach, Laguna Canyon, N of Phillips Street on East side of Laguna Canyon Road. 71 Comment
  RSA683232  Juncus acutus Scott D. White, Matt Carlton 2003-11-20 9861 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (Dana Point) 24 Comment
  IRVC29826  Juncus acutus subsp. leopoldii Artie Thomas, Mark A. Elvin 2006-9-23 609238 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
  UCR4761  Juncus acutus subsp. leopoldii Barbara T. Gittins 1966-5-29 1369 Orange Upper Newport Bay Comment
  RSA552947  Juncus balticus Fred M. Roberts, R. E. Riefner 1989-5-2 4328 Orange Aliso-Wood Canyons Regional Park: Lower Wood Canyon, 3.5 kilometers SSE Multon Peak. 30 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
  UCR193851  Juncus patens A. C. Sanders, Fred M. Roberts 2008-7-16 35856 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  RSA699683  Juncus rugulosus Keith E. Hoffmaster 1935-4-14 s.n. Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. Comment
  SD212409  Juncus rugulosus Andrew C. Sanders, Fred M. Roberts, et al 2006-7-20 33025 Orange Santa Ana Mountains: San Juan Canyon, from Lower San Juan Picnic Area to circa 1 mile downstream, parallel to Highway 74 and near Riverside County line 366 Comment
  UCR217668  Juncus textilis Fred M. Roberts, R. E. Riefner Jr. 2008-5-30 7023 Orange South Coast, Lomas de Santiago, Loma Ridge, Hanging Man's Tree Canyon, along Hanging Man's Tree Canyon Road, c. 0.4 km west of Santiago Canyon Road and 1.23 km north of Bolero Lookout 372 Comment
  RSA542335  Juncus xiphioides Fred M. Roberts, K. Keane 1988-5-25 3985 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark. 82 Comment
  POM21178  Juncus xiphioides Helen D. Gels 1902-11 s.n. Orange Santa Ana [River?] 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
  RSA683839  Juniperus californica Scott D. White, Michael Honer 2003-5-29 9422 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  CAS-BOT-BC383068  Juniperus rigida var. conferta R. E. Riefner, Jr. 2014-3-17 14 -72 Orange City of Newport Beach, beach area between Shorecliff Road and Cameo Shores Road 18 Comment
  UCR246394  Juniperus rigida var. conferta R. E. Riefner Jr. 2012-10-21 12- 521 Orange South Coast, city of Newport Beach, Corona del Mar, c. 0.5 mi south from the intersection of Poppy Ave./Ocean Blvd. at Little Corona Beach 12 Comment
  CLARK-A1528-5706  Jussiaea repens var. peploides John C. Roos 1949-10-1 4685 Orange Doheney Beach Comment
  RSA293253  Keckiella antirrhinoides D. C. Michener 1980-6-5 3668 Orange San Juan River valley. 300 Comment
  RSA424818  Keckiella antirrhinoides Albert J. Perkins 1916-6-15 s.n. Orange Santa Ana. Comment
  LA105129  Keckiella cordifolia David C. Michener; 1980-7-14 3704 Orange Santa Ana Mountains, Starr Ranch Audubon Sanctuary, Crow Creek, ca. 1.3 mi N of confluence with Bell canyon Comment
  NY790232  Keckiella cordifolia F. W. Pennell 1949-6-29 26806 Orange Ortega Highway, above San Juan Capistrano 365.8 Comment
  RSA401707A  Keckiella cordifolia M. B. Dunkle 1934-6-18 3996 Orange San Juan Canyon 305 Comment
  RSA773556  Keckiella cordifolia Fred M. Roberts 2008-6-3 7028 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.6 km NE of Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 235 Comment
  UC1294011  Keckiella cordifolia E. K. Balls 1958-6-27 23283 Orange 5 mi se Silverado (Gate); Santa Ana Mts., Silverado Canyon 1097 Comment
  UCR193025  Keckiella cordifolia A. C. Sanders, Fred M. Roberts 2008-6-17 35516 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  JEPS11336  Kickxia elatine Frank W. Peirson 1927-9-25 7676 Orange flats below Wintersberg Comment
  RSA730997  Kickxia elatine Fred M. Roberts 2006-11-15 6460 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  UCR150570  Kickxia elatine Scott D. White, Matt Carlton 2003-11-20 9866 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  UCR191423  Koeleria macrantha A. C. Sanders, Fred M. Roberts 2008-4-8 34773 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  RSA0069226  Koelreuteria bipinnata Fred M. Roberts 2008-9-3 7081 Orange Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave. 113 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
  UC485371  Laennecia coulteri C. F. Millspaugh 1920-1-19 4602 Orange Middle Ranch Comment
  CAS-BOT-BC354308  Lagunaria patersonia R. E. Riefner, Jr. 2009-12-3 09 -247 Orange City of San Clemente, N of San Clemente Pier, along main beach trail vicinity of Buena Vista St at West Canada St. 7 Comment
  RSA716769  Lagunaria patersonia Fred M. Roberts, Chris M. Barnhill 2004-7-10 6074 Orange Laguna Beach: Heisler Park, 0.14km E Recreation Point just above beach. 619 Comment
  UCD63274  Lagurus ovatus R. M. Love 1942-4-16 10 Orange 8 mi. east of Santa Ana. Comment
  UC1132172  Lamarckia aurea A. Lewis 1934-4-1 377 Orange Coal Mine 304 Comment
  UCR99880  Lamarckia aurea Scott D. White 1993-3-5 1130 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA651779  Lamarckia aurea Bill Amling 1948-5-2 5 Orange 10681 Flower St. Stanton. 242 Comment
  UCR186588  Lantana camara Robert DeRuff 1996-7-11 499 Orange Southern Coast, Newport Beach, Newport Back Bay, north side of Big Canyon 3 Comment
  UCR186591  Lantana montevidensis Robert DeRuff 1998-3-3 509 Orange Southern Coast, Newport Beach, Newport Back Bay, flats below intersection of Back Bay Dr. and Eastbluff Dr. 1 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
  CAS-BOT-BC329175  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1935-3-24 6295 Orange 1 mi N of Buena Park (valley to W of W. Coyote Hills) 53 Comment
  RSA12280  Lasthenia glabrata subsp. coulteri C. B. Wolf 1934-4-11 5655 Orange Bryant Ranch, east of Long Beach, along Bixby Ave., 0.5 mile west of Hansen Rd. 100 ft N of fence 8 Comment
  RSA3172  Lasthenia glabrata subsp. coulteri C. B. Wolf 1932-3-8 2691 Orange Sunset Beach, near S city limits 2 Comment
  SD248339  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2013-3-10 13 39 Orange City of Lake Forest, along El Toro Rd., at Destry Rd. 210 Comment
  UC891317  Lasthenia gracilis I. W. Clokey 1932-3-1 5325 Orange Sugar Loaf below Arch Beach Comment
Read comments
Nov 2 2011
  UCR203988  Lasthenia gracilis Fred M. Roberts 2008-3-12 6732 Orange South Coast, Dana Point Headlands Center for Natural Lands Mgmt. Preserve, west side, c. 0.8 km west of Marine Institute, Dana Point Harbor 50 Comment
  IRVC21512  Lathyrus tingitanus T. W. Mulroy 1973-5-21 1866 Orange San Juan Canyon, Hwy 74, ca. 3.2km E San Juan Guard Station. Santa Ana Mountains 315 Comment
  RSA659554  Lathyrus vestitus P. Shirokawa 1998-5-7 20 Orange Cleveland National Forest- Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road 960 Comment
  UCR220959  Lathyrus vestitus Dick Newell, Don Millar 2010-4-20 016 Orange South Coast Region, top of Serrano Ridge, 1 km west of the Nix Center/Laguna Canyon Rd. 229 Comment
  RSA405728  Lathyrus vestitus subsp. alefeldii H. L. Bauer 1929-4-20 s.n. Orange Trabuco Canon. Comment
  RSA3164  Lathyrus vestitus subsp. alefeldii C. B. Wolf 1932-3-8 2699 Orange Santiago Dam, W. base Santa Ana Mts. 305 Comment
  RSA90347  Lathyrus vestitus subsp. alefeldii F. W. Peirson 1925-4-11 5731 Orange slope above mill, in Silverado Canyon, Santa Ana Mountains 914 Comment
  UCSB47580  Lathyrus vestitus var. vestitus Roberts, Fred 1980-4-3 Orange San Juan Canyon, Hwy. 74, 0.4 km. NNE Lower San Juan Picnic Ground, Santa Ana Mtns. 420 Comment
  RSA782062  Lavatera cretica Mark A. Elvin 2003-2-23 2308 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA799619  Lavatera cretica Justin M. Wood 2011-4-12 3662 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA697123  Layia platyglossa Minor Warne 1934-4-21 s.n. Orange Santiago Canyon. Comment
  UCR230224  Layia platyglossa Dick Newell, Ed Hill 2011-3-29 097 Orange Peninsular Range; Santa Ana Mtns., east of Outdoor Education Center on MWD service road, 1.65 mi. NW (311 deg. ) of Irvine Lake dam 237 Comment
  RSA13056  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
  RSA17056  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
  RSA759148  Leontodon saxatilis Robt Allen 2008-4-9 s.n. Orange Irvine, Irvine Valley College, near N entrance to Student Services building. 53 Comment
  CDA25745  Leonurus sibiricus O. F. Clarke, A. C. Sanders 2008-2-19 s.n. Orange South Coast; Fullerton; weeds at California State University Fullerton Arboretum. Comment
  SD236317  Leonurus sibiricus O. F. Clarke, A. C. Sanders 2008-2-19 Orange South Coast: Fullerton; weeds at Calif. St. Univ. Fullerton Arboretum 79 Comment
  CAS-BOT-BC221604  Lepechinia cardiophylla John Thomas Howell 1927-6-26 2606 Orange Claymine Canyon, n. Santa Ana Mts. 609 Comment
  RSA678524  Lepechinia cardiophylla Fred M. Roberts, D. E. Bramlet 5524 Orange Santa Ana mts.: Main Divide Truck Trail, Upper Indian Cyn., 1.7km W Trabuco Pk. 1268 Comment
  UC1124486  Lepechinia cardiophylla H. E. Norton 1931-3-30 41 Orange Ridge between Ladd and East Fork Canyons 1036 Comment
  UC909677  Lepechinia cardiophylla John Thomas Howell 1927-6-26 2606 Orange n Santa Ana Mountains, Claymine Canyon Claymine Canyon; Santa Ana Mountains, Claymine Canyon 609 Comment
  IRVC1088  Lepidium lasiocarpum D. Van Gorden 1965-4-2 Orange Anaheim and Meyer Field. Costa Mesa Comment
  POM183942  Lepidium lasiocarpum P. A. Munz 1932-3-29 12191 Orange Costa Mesa. Comment
  POM21181  Lepidium lasiocarpum Helen D. Geis 1902-3-20 s.n. Orange Bed Santiago Creek. Comment
  IRVC1102  Lepidium lasiocarpum C. Hooven 1965-4-1 Orange Jamboree Rd. Newport Beach Comment
  UC494728  Lepidium lasiocarpum var. lasiocarpum Philip A. Munz 1932-3-29 12191 Orange Costa Mesa Comment
  RSA753424  Lepidium lasiocarpum var. lasiocarpum D. E. Bramlet 2008-4-14 4176 Orange Eastern Upper Weir Cyn., 83m S dirt access road & 272 m west of Gypsum Cyn. 417 Comment
  SD236245  Lepidium latifolium A. C. Sanders, Fred M. Roberts 2008-9-18 36090 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon ca. 0.5-0.8 miles above the highway bridge (El Toro 7.5'Q) 299 Comment
  UCR197577  Lepidium latifolium A. C. Sanders, Fred M. Roberts 2008-9-18 36090 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  IRVC25562  Lepidium nitidum Fred M. Roberts 1989-3-17 4209 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA325  Lepidium nitidum J. T. Howell 1928-2-7 813 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR191339  Lepidium nitidum A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34648 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  UCR191444  Lepidium nitidum A. C. Sanders, Fred M. Roberts 2008-4-8 34726 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR217454  Lepidium nitidum Mark A. Elvin 2003-1-26 2229 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA184171  Lepidium nitidum I. L. Wiggins 1966-2-12 20431 Orange N. side of La Palma Ave. near Harbor Blvd., Anaheim. Comment
  RSA699586  Lepidium nitidum J. R. Bruff s.n. Orange Modjeska s Home Comment
  HSC6841  Lepidium virginicum D. H. Norris 1956-6-16 10 Orange Along Guess Rd., near Eno River Comment
  RSA0022429  Lepidium virginicum var. pubescens R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49787 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR194550  Lepidium virginicum var. robinsonii A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35322 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  SD263572  Lepidospartum squamatum Jim Riley 2013-10-15 123 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  RSA725526  Leptochloa fusca subsp. uninervia Fred M. Roberts 2007-9-11 6576 Orange San Juan Capistrano: San Juan Creek at the confluence with Trabuco Creek. 17 Comment
  CLARK-A1528-4716  Leptochloa uninervia John C. Roos 1936-10-9 2509 Orange Olive Comment
  UC1123901  Leptodactylon californicum J. B. Spring 1931-4-14 31 Orange Cold Spring Canyon; Corona Quad., Cold Spring Canyon 548 Comment
  UC1123917  Leptodactylon californicum A. Lewis Mar 1934 360 Orange Silverado Canyon; Cleveland National Forest, Corona Quad., Silverado Canyon Comment
  VVC381  Leptodactylon californicum P. J. MacKay 1990-5-25 xn Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  RSA698318  Leptodactylon californicum Anonymous s.n. Orange Siverado. Comment
  RSA759202  Leptosiphon ciliatus Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Maple Springs Saddle. Inside region of 180 degree bend in road. On N-facing slope 1382 Comment
  UCSB47633  Leptosiphon floribundus subsp. glaber Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, 0.6 km. southeast Trabuco Peak on east side of road, Santa Ana Mtns. 1259 Comment
  RSA542534  Leptosiphon liniflorus Fred M. Roberts, K. Keane 1988-5-25 3991 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker. 91 Comment
  RSA789223  Leptosiphon parviflorus Naomi Fraga 2009-5-11 2718 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  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
  UCR44906  Lessingia filaginifolia B. G. Pitzer, L. F. LaPre 1986-10-20 0304 B Orange Santa Ana Mtns, Summit of Hicks Canyon on a private road (continuation of Jeffrey Road), c. 2.4 mi. above the gun club 274 Comment
  RSA0011628  Leymus triticoides Rankin s.n. Orange Santa Ana Comment
  CAS-BOT-BC130581  Lilium humboldtii John Thomas Howell 1927-7-3 2645 Orange Claymine Canyon, n. Santa Ana Mts. 304 Comment
  RSA698086  Lilium humboldtii J. Vlahos 1934-03 s.n. Orange Black Star Canyon. Comment
  UC1873111  Limonium R. E. Riefner Jr. 2006-10-19 06 -543 Orange Santa Ana Mountains, City of Rancho Santa Margarita, Robinson Ranch Road at Shadow Rock Road 419 Comment
Read comments
Jun 15 2011
  CDA1076  Limonium binervosum D. G. Kelch 2006-12-9 6 .547 Orange Along Newport Back Bay Dr. in side canyon. Comment
  RSA0045186  Limonium commune var. californicum Keith E. Hoffmaster 1934-10-7 237 Orange Near Santa Ana. Comment
  RSA723491  Limonium duriusculum R. E. Riefner 2005-10-5 5 -707 Orange City of Irvine, Bonita Creek, along La Salud St. near Milano Dr. 9 Comment
  RSA743510  Limonium perezii Fred M. Roberts 2008-4-9 6861 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 45 Comment
  RSA723545  Limonium ramosissimum R. E. Riefner 2005-10-5 5 -708 Orange City of Irvine, Bonita Creek, along La Salud St. near Milano Dr. 9 Comment
  RSA723546  Limonium ramosissimum R. E. Riefner 2005-9-16 5 -667 Orange City of Newport Beach, E of Newport Bay and E of Bayside Dr. Big Canyon Creek drainage. 6 Comment
  UCR219807  Limonium ramosissimum Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  RSA697071  Linanthus dianthiflorus Keith E. Hoffmaster 1927-4-2 801 Orange Santa Ana Mnts. Comment
  RSA734640  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34559 Orange Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR266297  Linanthus dianthiflorus D. E. Bramlet, J. E. Harrison 2008-4-3 4155 Orange Peninsular Range; Santa Ana Mountains, South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill 224 Comment
  RSA539354  Linanthus dianthiflorus subsp. dianthiflorus Fred M. Roberts, Karen Kirtland 1989-2-22 4185 Orange San Joaquin Hills: Pelican Hill, 0.5km ESE Summit. 177 Comment
  UCR177690  Linanthus liniflorus Fred M. Roberts, D. E. Bramlet 2003-5-1 5693 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km west of Cristianitos Rd. 96 Comment
  RSA698401  Linanthus parviflorus Dorothy Sammis s.n. Orange Trabuco Canyon. Comment
  RSA680912  Linaria canadensis Scott D. White 2003-3-21 8797 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  POM17481  Linaria canadensis var. texana Philip A. Munz 1923-4-1 6910 Orange Laguna Lakes 61 Comment
  RSA594875  Lindernia dubia Fred M. Roberts Jr., Wayne Ferren 1991-12-1 4830 Orange San Josquin Hills: Laguna Canyon, Upper Laguna Lake, 3.5 km N junction El Tprp Rd. , 4.9 km ENE Signal Peak; 113 Comment
  RSA685161  Lippia nodiflora Scott D. White, Michael Honer 2003-7-10 9626 Orange Hills above Trampas Canyon, just south of Ortega Hwy. 91 Comment
  UCR128167  Lippia nodiflora Scott D. White, Michael Honer 2003-7-10 9626 Orange Santa Ana Mountain foothills, Hills above Trampas Canyon, just south of Ortega Hwy 183 Comment
  IRVC21379  Lobelia dunnii var. serrata A. S. Boughey 1968-7-9 405 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  IRVC21406  Lobelia dunnii var. serrata A. S. Boughey 1968-7-9 405 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UC729650  Lolium multiflorum Carl B. Wolf 1932-6-13 3714 Orange Fullerton; Rose Drive 53 Comment
  UC729881  Lolium multiflorum Carl B. Wolf 1932-7-7 3858 Orange Bryant Ave., at pump house 1/2 e, Bryant Ranch, ne corner S.E.160 of Sect.30 Los Alamitos Blvd. Comment
  RSA0011625  Lolium perenne subsp. multiflorum Rankin s.n. Orange Santa Ana. Comment
  RSA6065  Lolium perenne subsp. multiflorum C. B. Wolf 1932-6-13 3717 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  SEINET8465373 Image available Lomatium dasycarpum Norman Cooper 1944-6-4 1324 Orange Elsinore Mountain 1067 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
  SEINET12118936  Lomatium utriculatum J. F. Bright, Wyman, C. 1933-1 8100 Orange in Santa Ana foothills Comment
  CAS-BOT-BC240668  Lonicera interrupta A. M. White 1974-6-1 1408 Orange Ca. 20 mi. E. of Santa Ana, N. of Silverado Canyon Comment
  UCR193803  Lonicera subspicata A. C. Sanders, Fred M. Roberts 2008-7-3 35670 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA648192  Lonicera subspicata var. denudata Karl Price 1988-5-7 31 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  RSA0023266  Lonicera subspicata var. johnstonii R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49781 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA697992  Lotus Pomeroy 1929-4-27 s.n. Orange Trabuco. Comment
  UC1543225  Lotus heermannii Donald G. Nelson 1935-4-6 256 Orange San Juan Capistrano, below main highway, about 4 mi from summit San Juan Canyon 60 Comment
  IRVC15129  Lotus heermannii var. heermannii A. S. Boughey 1968-7-9 383 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UCR174218  Lotus purshianus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33042 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
  RSA734858  Lotus salsuginosus A. C. Sanders, Mitch Provance 2008-5-20 35406 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  UCR193847  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-7-16 35882 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UCR222416  Lotus salsuginosus D. E. Bramlet 2008-3-26 4118 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 202 m south of the Bee Canyon access road and 151 m west of the active landfill entrance 295 Comment
  RSA697974  Lotus salsuginosus H. Dittmer 1932-5-16 s.n. Orange Road to Irvine Dam Comment
  POM183955  Lotus scoparius P. A. Munz 1932-3-29 12187 Orange Costa Mesa Comment
  UCR106309  Lotus scoparius B. G. Pitzer, M. Georgiady 1997-4-5 3099 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
  RSA90319  Lotus scoparius F. W. Peirson 1923-3-26 4093 Orange Canada Salada. Comment
  IRVC27497  Lotus scoparius var. scoparius Mark A. Elvin 2004-5-2 3406 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA739555  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-7-3 35668 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UCR99549  Lotus scoparius var. scoparius B. G. Pitzer 1996-4-30 2802 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA3185  Lotus strigosus C. B. Wolf 1932-3-8 2678 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA391  Lotus strigosus J. T. Howell 1928-2-25 842 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  UCR192497  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-3-25 34565 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC21292  Lotus strigosus var. strigosus Fred M. Roberts, Karlin G. Marsh 1984-2-15 1201 Orange Casper's Regional Park: Rancho: Rancho Carrillo Rd., 1.0km NE Visitor Center; 3.0km SW Lucas Survey Mark, Santa Ana Mountains 150 Comment
  IRVC22208  Lotus strigosus var. strigosus Fred M. Roberts, Gordon Marsh 1985-4-3 1623 Orange Irvine: Irvine Ranch, just east of MacArthur, 1.4km W UCI campus center. Southern Coastal 30 Comment
  IRVC17284  Lotus strigosus var. strigosus Karlin G. Marsh 1980-5-5 Orange Rancho Mission Viejo: Planning area; along road way. Southern Coastal Comment
  IRVC18811  Lotus strigosus var. strigosus Karlin G. Marsh 1983-4-11 s.n. Orange Laguna Beach: Sycamore Hills; dirt road surface of central ridge line. southern coastal Comment
  UC537009  Lotus wrangelianus Lawrence M. Booth 1932-5-19 1073 Orange Newport Bay Comment
  RSA21063  Ludwigia peploides subsp. peploides Ramon Valverde 1938-8-4 3229 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA232237  Ludwigia peploides subsp. peploides James Henrickson 1970-8-29 5301 Orange 3 miles NE of Huntington Beach in pasture just N of Bolsa Chica Salt Marsh. Sea level. 0 Comment
  UCR109740  Ludwigia peploides subsp. peploides T. W. Fisher, R. E. Orth 1964-7-1 s.n. Orange Peninsular Range; Santa Ana Mtns., San Juan Creek off the Ortega Hwy 500 Comment
  SD227862  Ludwigia repens Scott D. White, Brian Leatherman 1997-6-12 5343 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 jtn. 45 Comment
  JEPS65411  Lupinus bicolor Alice King 1908-4-18 Orange Santa Ana Mts. Comment
  RSA699681  Lupinus bicolor subsp. microphyllus Keith E. Hoffmaster 1927-4-3 s.n. Orange Buena Park, San Onofre. Comment
  IRVC2301  Lupinus bicolor subsp. umbellatus John Schram 1965-5-1 HS 0420 Orange Corona Del Mar, Corona Highlands Southern Coastal Comment
  RSA542582  Lupinus concinnus subsp. concinnus Fred M. Roberts, Carol A. Williams 1988-4-2 3891 Orange Santa Ana Mtns. hillside SE of Falcon Group Camp, 2.1km ESE Los Pinos Peak. 1012 Comment
  RSA619240  Lupinus densiflorus R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest 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-BC216671  Lupinus excubitus subsp. hallii Charles Piper Smith 1946-4-12 46153 Orange Santa Ana Canyon Comment
  CAS-BOT-BC216677  Lupinus excubitus subsp. hallii B. D. Stark 1933-2-3 1780 Orange Atwood, 8/9 miles e. of Atwood on the south side of santa Fe R.R. 106 Comment
  IRVC24802  Lupinus excubitus var. hallii Fred M. Roberts, Gordon Marsh 1986-5-16 2908 Orange Ridge above San Juan Canyon, Sitton Peak Truck Trail, 4.0km W Sitton Peak, Santa Ana Mountains 670 Comment
  RSA503878  Lupinus excubitus var. hallii N. C. Cooper 1949-5-1 3942 Orange San Juan Canyon 610 Comment
  RSA754066  Lupinus hirsutissimus A. C. Sanders, Fred M. Roberts 2008-7-16 35881 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 358 Comment
  UCR193933  Lupinus hirsutissimus A. C. Sanders, Fred M. Roberts 2008-7-16 35881 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  CAS-BOT-BC217749  Lupinus longifolius E. R. Johnson 1932-4-15 2957 Orange Rancho Santa Ana, 1 mi. NW of Roundtop (Section 16) 457 Comment
  RSA413758  Lupinus longifolius Samuel R. Tyson 1942-6-18 s.n. Orange San Dimas Canyon 1555 Comment
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Nov 15 2013
  UCR177285  Lupinus microcarpus Scott D. White, Amanda Duchardt 2003-5-1 9152 Orange Santa Ana Mountains, Slopes above the west side of Canada Gobernadora and adjacent small canyon to the west 122 Comment
  SEINET2073427  Lupinus polyphyllus var. polyphyllus R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, growing in hard-packed sand of sand hill. Comment
  UCR240078  Lupinus sparsiflorus Dick Newell, Don Millar 2012-5-22 253 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hangmans Tree Rd. at Santiago Creek 350 Comment
  IRVC21274  Lupinus sparsiflorus subsp. sparsiflorus Fred M. Roberts, Karlin G. Marsh 1984-2-15 1204 Orange Casper's Regional Park: Rancho: Rancho Carrillo Rd., 1.0km NE Visitor Center; 3.0km SW Lucas Survey Mark, Santa Ana Mountains 150 Comment
  RSA788817  Lupinus sparsiflorus subsp. sparsiflorus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49804 Orange Santa Ana Mountains: Trabuco Canyon Comment
  SDSU5016  Lupinus succulentus R. M. Beauchamp 1968-2-17 769 Orange On north side of Trabuco Rd., opposite Catholic cemetery. Comment
  UCD109603  Lupinus succulentus C. L. Hitchcock 1966-3-15 24133 Orange 1/2 mile e. of Brea. Comment
  UCR250869  Lupinus succulentus Dick Newell, Don Millar 2014-4-15 364 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon wash 100 yards south of Box Canyon Road 396 Comment
  RSA414369  Lupinus truncatus Fay A. MacFadden 2939 Orange Laguna Beach. Comment
  RSA414395  Lupinus truncatus M. B. Dunkle 1935-3-3 4346 Orange San Juan Canyon. 457 Comment
  RSA678723  Lupinus truncatus Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5852 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  SBBG47485  Lupinus truncatus M. B. Dunkle 1935-3-3 4346 Orange San Juan Cyn 457 Comment
  UCSB21320  Lupinus truncatus Keefe, Joseph 1967-3-26 Orange South edge of Newport Bay; on Back Bay Drive; 2.0 miles northeast of intersection with Jamboree Drive; Corona del Mar 3 Comment
  UCR250330  Lycium brevipes R. E. Riefner Jr. 2012-6-22 12- 273 Orange city of Newport Beach, Corona del Mar, Little Corona Beach, vicinity of Poppy Ave. and Ocean Blvd. 4 Comment
  RSA578028  Lycium brevipes var. hassei R. E. Riefner 1995-3-19 95 -77 Orange San Clemente State Beach Comment
  RSA5270  Lycium californicum B. D. Stark 1932-12-9 4424 Orange Canyon 1 mile NW of Laguna Beach Comment
  UCR193072  Lythrum hyssopifolia A. C. Sanders, Mitch Provance 2008-5-20 35422 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCSB48023  Lythrum hyssopifolia Roberts, Fred 1980-7-1 Orange Irvine: San Diego Creek, 0.2km NE Interstate 5: 2.0km WSW Bench Mark 343 85 Comment
  RSA362292  Madia gracilis Fred M. Roberts 1985-6-7 1846 Orange Santa Ana Mountains: Main Divide Truck trail, 2.2km ESE Los Pinos Peak. 1005 Comment
  CAS-BOT-BC206260  Malacothamnus fasciculatus John Thomas Howell 1927-6-20 2557 Orange North side of Santa Ana Canyon 243 Comment
  POM49079  Malacothamnus fasciculatus I. M. Johnston 1924-7-10 s.n. Orange 1/2 mi. S. of Aliso Canyon. Comment
  UCR103710  Malacothamnus fasciculatus B. G. Pitzer, T. Tennant 1997-11-8 3364 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  CAS-BOT-BC175460  Malacothrix saxatilis A. C. Sanders 2008-4-29 35120 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
  UCR80000  Malacothrix saxatilis Scott D. White 1992-10-20 973 Orange Vicinity of city of Brea, Immediately north of Carbon Canyon Rd & east of Placentia Avenue +-1mi (air) SSEof Tonner Canyon. 183 Comment
  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
  JEPS112967  Malacothrix saxatilis var. tenuifolia Dean W. Taylor 1994-6-7 14410 Orange Newport Bay; along Backbay Drive at the junction with San Joaquin Hills Drive 6 Comment
  UCR106283  Malacothrix saxatilis var. tenuifolia B. G. Pitzer, M. Georgiady 1997-4-5 3076 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  UCSB50647  Malacothrix saxatilis var. tenuifolia Roberts, Fred 1982-6-3 Orange South Laguna: Niguel Hill, at end of Sea Island Dr., 1.9km SE Aliso Peak 210 Comment
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Dec 12 2018
  IRVC841  Malacothrix saxatilis var. tenuifolia D. Frees 1965-3-27 Orange Newport Beach; East Bluffs. Southern Coastal Comment
  RSA0061166  Malacothrix saxatilis var. tenuifolia Robt. Allen 2007-8-11 s.n. Orange Santa Ana Mountains region: Silverado Canyon. Along Maple Springs Road (5S04), circa 3.5 road miles N of Forest Gate. Near small bridge over creek, end of paved road. 913 Comment
  RSA528045  Malephora crocea A. C. Sanders 1990-10-6 10188 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  RSA678507  Malephora crocea Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1106 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  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
  UCSB16199  Malephora crocea Valentine, D. 1963-2-23 Orange Above Dana Point Pier, 2 mi. N of Doheny Beach State Park, 4 mi. N. of junction U.S. 101 and 101A at San Clemente 10 Comment
  RSA302142  Malephora crocea J. R. Shevock 1972-2-18 1337 Orange Bluffs, Newport back bay. 9 Comment
  UCR228797  Malosma laurina Dick Newell, Don Millar 2011-5-3 138 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  UCSB48029  Malosma laurina Roberts, Fred 1980-7-7 Orange Santa Ana Mtns.; San Juan Canyon, Calif. Rte. 74; 2.2 km. ENE San Juan Guard Station; 0.6 km W Bench Mark 1100 305 Comment
  RSA221067  Malus sylvestris E. W. Lathrop 1966-4-6 6133 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR199729  Malva nicaeensis Scott D. White, Justin Wood 2008-4-22 11907 Orange Chino Hills, Telegraph Canyon Road, E of Carbon Canyon Regional Park 335 Comment
  UCR109662  Malva parviflora G. S. Nuessly 1980-11-27 s.n. Orange Tustin. SE corner of 17th St. and Yorba Ave. 52 Comment
  UCR241897  Malva parviflora Fred M. Roberts 2012-4-24 7529 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
  RSA0031758  Malva parviflora Robert F. Thorne 1977-11-21 50816 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA716091  Malvaviscus arboreus Fred M. Roberts 2006-7-27 6394 Orange San Joaquin Hills: Laguna Beach, Temple Hill, 731 Nyes Place, 1.0km NNE Golf Island. 174 Comment
  POM12444  Malvella leprosa P. A. Munz 1922-9-2 6356 Orange Ponds in Laguna Canyon. 46 Comment
  RSA5943  Malvella leprosa Carl B. Wolf 1932-7-7 3855 Orange Bryant Ranch. On Bryant Avenue. 0.1 mile E of Los Alamitos Blvd. (0.1 mi E of NW corner of SE 1/4 sect 30) 8 Comment
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Apr 10 2016
  UCR16327  Malvella leprosa N. J. Moriarty 1973-5-20 - 2 Orange Huntington Beach, 0.7 mi. north of Golden West Blvd. on west side of Pacific Coast Highway Comment
  CDA35815  Malvella leprosa Robert L. Pope 1957-5-17 Orange [No other data] 0 Comment
  CHSC19526  Marah macrocarpa T. Casale 1974-4-11 1 Orange Ca. 4.1 mi ne of the Mission SanJuan Capistrano on Hwy. 74. 170 Comment
  RSA2108  Marah macrocarpa C. B. Wolf 1931-2-9 1829 Orange Santa Ana Canyon between Horseshoe Bend and Esperanza, over whire fence along RR. 137 Comment
  RSA0043354  Marrubium vulgare David Barrios 1991-5-8 21 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  RSA552932  Marrubium vulgare Fred M. Roberts, R. E. Riefner 1989-5-2 4333 Orange Aliso-Wood Canyons Regional Park: Lower Woods Canyon, 3.3 km S Multon Peak. 40 Comment
  RSA649326  Marrubium vulgare Diane Terell 1969-3-15 94 Orange On Bradford Avenue between Madison Avenue and Palm Drive in a deserted orange grove 46 Comment
  RSA650826  Marrubium vulgare Daniel Truong 1991-5-13 24 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  UCD170385  Marsilea drummondii R. E. Riefner Jr. 2008-6-22 08- 209 Orange City of Yorba Linda, Santa Ana Canyon, Santa Ana River, La Palma Ave. near Old Village Road. 95 Comment
  CAS-BOT-BC348163  Matricaria discoidea Ira L. Wiggins 1966-3-22 20553 Orange Silverado Canyon about 1/2 mi. below entrance to Cleveland National Forest Comment
  CAS-BOT-BC422724  Meconella denticulata Helen D. Geis 1904-5-1 716 Orange Silverado Canon [Canyon], Santa Ana Mts. Comment
  SD241018  Medicago rigidula A. C. Sanders, Fred M. roberts 2008-3-25 34527 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA722086  Melaleuca nesophila R. E. Riefner Jr. 2007-3-18 7 -151 Orange City of Newport Beach, N shore of Newport Bay, North Star Beach, general vicinity of North Star Ln. and Polaris Dr. 9 Comment
  RSA588777  Melica frutescens Fred M. Roberts 1990-4-26 4585 Orange Silverado Canyon opposite White Canyon, ca. 4.7 km NNE Bolero Lookout 442 Comment
  RSA797664  Melica frutescens R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49768 Orange Santa Ana Mountains: Trabuco Canyon Comment
  CAS-BOT-BC281592  Melica imperfecta Helen D. Geis 1902-1-1 555 Orange Unspecified Comment
  RSA697718  Melica imperfecta Anonymous s.n. Orange Orange County park Comment
  RSA732245  Melica imperfecta A. C. Sanders, Fred M. Roberts 2008-4-22 34996 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
  UCR138332  Melica imperfecta R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 460 Orange Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 473 Comment
  UCR205982  Melica imperfecta Erynn Maynard 2007-8-2 s.n. Orange Peninsular Range; Santa Ana Mtns., Starr Ranch Sanctuary, 100 Bell Canyon Rd., city of Trabuco Canyon 488 Comment
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Sep 5 2010
  JEPS65541  Melilotus albus L. M. Booth 1933-10-18 Orange Newport Comment
  RSA735161  Melilotus albus A. C. Sanders, Fred M. Roberts 2008-5-6 35211 Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UC537003  Melilotus albus Lawrence M. Booth 1932-7-4 1252 Orange Newport Lagoon Comment
  RSA5603  Melilotus albus Carl B. Wolf 1932-6-28 3756 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  IRVC2417  Melilotus indicus D. Van Gorden 1965-5-2 s.n. Orange Costa Mesa; 18th Street. Southern Coastal Comment
  IRVC2418  Melilotus indicus Bruce Reynolds 1965-4-20 s.n. Orange Newport Beach; Balboa Island, 115 Amethyst Ave. Southern Coastal Comment
  IRVC2424  Melilotus indicus Ed Hazen 1965-4-27 s.n. Orange Costa Mesa; Victoria St. and Victoria Place. Southern Coastal Comment
  IRVC2426  Melilotus indicus Janet Bryant 1965-3-14 Orange Costa Mesa; Redlands Dr. and Santa Isabel. Southern Coastal Comment
  OBI30222  Melilotus indicus Nancy J. Mann 1976-5-16 s.n. Orange 1.2 mi N of Modjeska Cyn rd on Santiago cyn rd, Charlton Ranch, Santa Ana Mts. Area burned 8 Dec. 1975 Comment
  RSA678511  Melilotus indicus Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1128 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  SD220061  Melilotus indicus Mark A. Elvin 2004-5-2 3410 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  UCR154336  Melilotus indicus Mark A. Elvin 2004-5-2 3410 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR175055  Melilotus indicus Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  IRVC25098  Melissa officinalis Fred M. Roberts, Gordon A. Marsh 1986-8-27 3121 Orange Santa Ana Mtns; Silverado Cyn, Silverado, 1.6km NNW Shrwsbury Spring. Peninsular Ranges 480 Comment
  RSA741704  Mentzelia micrantha R. E. Riefner Jr. 2007-6-11 07 -252 Orange Santa Ana Mtns., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, upper Fremont Canyon, Donaldson Ranch area. 382 Comment
  UC7687  Mesembryanthemum crystallinum O. B. Byram 1901-9-10 Orange Westminster Comment
  UCD96994  Mesembryanthemum crystallinum J. C. Roos 1965-6-16 s.n. Orange Dana Point. Comment
  UCSB45557  Mesembryanthemum crystallinum Roos, John 1965-6-16 Orange Dana Point Comment
  CSUSB13  Mesembryanthemum crystallinum Heather Hanson 1966-5-5 s.n. Orange One mile south of Laguna on the beach Comment
  RSA144559  Mesembryanthemum crystallinum P. H. Raven 1957-9-28 11400 Orange Laguna Beach. Comment
  RSA5852  Mesembryanthemum crystallinum C. B. Wolf 1932-6-28 3791 Orange Bryant Ranch, near fence., 100 ft. south of NW corner of NW 1/4 of S.E. 1/4 of sect 27. 9 Comment
  CHSC46067  Mesembryanthemum nodiflorum Sean P. Gallagher 1988-4-2 6 Orange W end of Bolsa Chica Channel. 0 Comment
  RSA402639  Mesembryanthemum nodiflorum L. M. Booth 1932-6-25 s.n. Orange Mouth of Santa Ana River. Comment
  RSA608535  Microseris douglasii subsp. platycarpha D. E. Bramlet 1993-3-27 2297 Orange University of California, Irvine Campus, adjacent to the UCI Ecological Reserve. The site is 150 ft. SW of the end of Los Trancos Dr. & 250 ft. E of the reserve entrance. 61 Comment
  UC1952573  Microseris douglasii subsp. platycarpha D. Bramlet 1994-4-30 2375 Orange At the base of the San Joaquin Hills and east of the Quail hill area. Open flatlands 152 m NW of the end of San Canyon Ave. and some 396 m south of the San diego freeway. Comment
  UCR98773  Microseris douglasii subsp. platycarpha D. E. Bramlet 1995-4-29 2404 Orange Fairview Park, Costa Mesa. 366m north of intersection of Wilson and Canyon drive and 152 m west of the Canyon School 43 Comment
  RSA599649  Microseris douglasii subsp. platycarpha Fred M. Roberts 1995-4-21 4930 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.5 km ENE French Hill. 52 Comment
  RSA749850  Microseris heterocarpa Scott D. White, Amanda Duchardt 2003-3-27 8850 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA789582  Microseris heterocarpa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49654 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA749306  Microseris lindleyi Fred M. Roberts 1999-4-21 5179 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
  RSA785531  Microseris lindleyi Doris Bowers 1971-4-19 1683 Orange Black Star Canyon Indian Site 762 Comment
  JEPS10278  Mimulus Lawrence M. Booth 1932-7-27 1322 Orange Newport Bay Comment
  RSA0056606  Mimulus aurantiacus subsp. australis P. Shirokawa 1998-4-24 5 Orange Cleveland National Forest. Trabuco Ranger District, 2.35 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 991 Comment
  POM311165  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -D Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. Comment
  POM311166  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -E Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. Comment
  POM77  Mimulus aurantiacus var. pubescens D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA298668  Mimulus aurantiacus var. pubescens D. C. Michener 1981-6-19 3975 Orange Starr Ranch Audubon Sanctuary. Coastal sage-scrub formation in headwaters of Crow Canyon. Comment
  RSA448177  Mimulus aurantiacus var. pubescens Albert J. Perkins 1920-6-12 s.n. Orange Corona del Mar Comment
  RSA542494  Mimulus aurantiacus var. pubescens Fred M. Roberts, Carol A. Roberts 1988-5-12 3965 Orange Anaheim Hills: Upper Deer Canyon, 7.7 km W Sierra Peak. 268 Comment
  UCD122401  Mimulus aurantiacus var. pubescens R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon. Comment
  UCSB25548  Mimulus aurantiacus var. pubescens Van Rensselaer, Maunsell 1944-11-26 Orange Laguna Canyon; about 2 mi. northeast of Laguna Beach Comment
  RSA0113246  Mimulus aurantiacus var. pubescens Lyman Benson 1946-4-27 12057 Orange Corona del Mar. 15 Comment
  UC1063445  Mimulus aurantiacus var. puniceus R. St. John 1931-4-14 205 Orange Hot Springs, San Juan Canyon Elsinore Quadrangle 365 Comment
  UCR192730  Mimulus brevipes A. C. Sanders, Fred M. Roberts 2008-5-6 35230 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  UCR174193  Mimulus cardinalis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33017 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
  UCR174028  Mimulus floribundus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33013 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
  UCSB69276  Mimulus floribundus Sanders, A.; Salvato, T. 2008-5-13 Orange Peninsular Range; Santa Ana Mtns; Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn; c. 1/2 mile below Modjeska Canyon confluence; in Hangman Tree and in open sand along Santiago Cr. wash 366 Comment
  RSA769078  Mimulus guttatus L. C. Hull 1934-3-7 s.n. Orange Laguna Hills Comment
  SEINET11941950  Mirabilis californica J. F. Bright, Wyman, C. 1933-1 8104 Orange In Santa Ana Foothills Comment
  HSC16150  Mirabilis laevis J. W. Johnson 1961-3-29 Orange Newport Beach, on S side of upper Newport Bay Comment
  HSC25237  Mirabilis laevis R. W. Spjut 1972-2-22 2228 Orange W border of the Cleveland National Forest in the Santa Ana Mtns. along Hwy. 74 305 Comment
  RSA698205  Mirabilis laevis Snow 1929-3-4 s.n. Orange West of Orange Co. Park. Comment
  UCR281547  Mirabilis laevis Mitch Provance, Jeremiah George 2017-3-20 317- 123 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  RSA0113242  Mirabilis laevis Lyman Benson 1946-4-27 12050 Orange Corona del Mar. 15 Comment
  JEPS61334  Mirabilis laevis var. crassifolia L. M. Booth 1932-5-12 1035 Orange Newport Bay Comment
  POM6381  Mirabilis laevis var. crassifolia P. A. Munz, L. T. Street, G. Williams 1919-5-3 2672 Orange Santa Ana River Canyon. Comment
  UCR203978  Mirabilis laevis var. crassifolia Fred M. Roberts 2008-3-12 6712 Orange South Coast, Dana Point Headlands Center for Natural Lands Mgmt. Preserve, west side, c. 0.8 km west of Marine Institute, Dana Point Harbor 50 Comment
  RSA465233  Mirabilis laevis var. crassifolia Albert J. Perkins 1914-3-14 s.n. Orange Santa Ana; near Coward s Cove. Comment
  UC284874  Monardella hypoleuca subsp. intermedia P. A. Munz 1923-9-7 7742 Orange along trail from Holy Jim Canyon to Santiago Peak; Santa Ana Mts 914 Comment
  RSA679223  Monardella lanceolata Fred M. Roberts 2003-6-25 5948 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  POM257044  Monardella lanceolata var. lanceolata W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  CAS-BOT-BC349571  Monolopia lanceolata Carl B. Wolf 1932-3-14 2709 Orange Rancho Santa Ana Botanic Garden, native to slope below Pinus radiata bed 192 Comment
  RSA0010788  Morus alba Robt. Allen, Richard S. Newell, Roger E. Reinke 2006-6-30 s.n. Orange Holy Jim Canyon Trail. About 1.5 mile up trail from forest gate. 671 Comment
  RSA450862  Muhlenbergia asperifolia Gordon Marsh, Karlin G. Marsh 1977-11-21 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. Comment
  UCR2780  Muhlenbergia asperifolia F. M. Reed 1927-9-19 5470 Orange Near Peralta Heights 91 Comment
  POM265765  Muhlenbergia microsperma J. C. Roos 2081 Orange East of San Juan Capistrano Comment
  RSA682915  Muhlenbergia microsperma Scott D. White, Amanda Duchardt 2003-5-1 9166 Orange Slopes above west side of Trampas Canyon. 107 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
  SBBG89596  Muhlenbergia microsperma J. Hirshberg 1988-6-7 Orange Black Star Cyn 274 Comment
  RSA542361  Muhlenbergia rigens Fred M. Roberts 1988-5-13 3696 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout., UTM 3731000mN, 437300mE 134 Comment
  UCR237840  Myoporum laetum Mark A. Elvin 2003-2-2 2269 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA0126617  Myoporum rapense Fred M. Roberts 2012-4-24 7496 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  CAS-BOT-BC219359  Nama stenocarpa Le Roy Abrams 1901-6-13 1770 Orange Laguna Comment
  JEPS1400  Nama stenocarpa L. M. Booth 1932-7-1 1235 Orange Anaheim Creek Anaheim Creek (Orange County Coast) Comment
  UCR158039  Nama stenocarpa Adrian Wolf 1998-7-21 402 Orange South Coast, Emerald Canyon, Laguna Coast ranges, 3 km up canyon from Pacific Coast Hwy, 2.75 km SW of Laguna Canyon Rd. and El Toro intersection 122 Comment
  UCR36055  Nama stenocarpa F. R. Fosberg 1928-7-25 05928 Orange Laguna Lakes, Laguna Canyon 122 Comment
Read comments
Dec 11 2010
  RSA681020  Nassella cernua Fred M. Roberts, David E. Bramlet 2003-3-13 5586 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate., (33 deg 29'37N, 117 deg 34' 16 W [UTM: 11S-04 46 936mE, 37 05 965mN.] 207 Comment
  RSA548852  Nassella lepida Fred M. Roberts, H. Camp 1987-3-10 3218 Orange Caspers regional park: San Juan Canyon, BN of Hwy 74, 1.9km SW San Juan Hot Springs, UTM 3715600mN, 450 400m E, alt 229m. 229 Comment
  RSA91618  Nassella lepida F. W. Peirson 1923-3-25 5362 Orange Aliso Creek, near Laguna Beach. Comment
  CAS-BOT-BC260104  Nassella pulchra LeRoy Abrams 1903-4-18 3269 Orange Trabuco Canon [Trabuco Canyon], Capistrano Comment
  POM182189  Nassella pulchra Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon Comment
  UCD87645  Nassella pulchra R. M. L. 1942-4-15 8 Orange north slope. Moulton Ranch. Comment
  RSA0028025  Nasturtium officinale Fred M. Roberts 2012-9-6 7698 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  RSA697462  Nasturtium officinale R. H. McArthur 1934-4-2 s.n. Orange Wintersburg drainage ditch. In shallow water. Comment
  POM201760  Nemacaulis denudata var. denudata L. M. Booth 1932-5-27 1132 Orange Newport Beach Comment
  POM50445  Nemacaulis denudata var. denudata L. R. Abrams 1901-06 1757 Orange Anaheim Landing 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
  SBBG126175  Nemacaulis denudata var. denudata O. F. Clarke 2003-5-7 Orange Least Tern Reserve, just N of mouth of Santa Ana River; Huntington Beach 4 Comment
  LA9429  Nemacladus ramosissimus LeRoy Abrams; 1903-4-18 3268 Orange Capistrano Comment
  JEPS2990  Nemophila menziesii Alice King March, 1908 Orange Anaheim Plains Comment
  RSA704834  Nemophila menziesii Francis Battey s.n. Orange Laguna Hills. Comment
  RSA421357  Nemophila menziesii M. B. Dunkle 1935-2-10 4329 Orange El Toro. Comment
  RSA699273  Nemophila menziesii var. integrifolia Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  CAS-BOT-BC465565  Nephrolepis cordifolia R. E. Riefner, Jr. 2013-4-5 13 -59 Orange City of Yorba Linda, southbound 91-freeway at 55-freeway interchange, ca 0.6 mi W of Lakeview Ave. 80 Comment
  UC2042000  Nephrolepis cordifolia R. E. Riefner Jr. 2011-8-25 11 -120 Orange City of Laguna Beach, Aliso Beach County Park, bluff ca. 0.15 mi SE of Aliso Way, NW ca 0.25 mi of West St. Comment
  RSA0020229  Nicotiana attenuata J. Vlahos 1933-1 s.n. Orange Orange Co. Park. Comment
  RSA17173  Nicotiana bigelovii var. wallacei Percy C. Everett 1935-6-28 7259 Orange 8/10 of a mi. east of Atwood. S. side of R. R. tracks. 1067 Comment
  RSA0069235  Nicotiana clevelandii Fred M. Roberts, Lee Ann Caranza 2009-4-7 7140 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 60 Comment
  UC566776  Nicotiana clevelandii Herbert L. Mason 1926-4-25 2929 Orange 5 mi s Laguna (sea cliffs) Comment
  CDA1049  Nicotiana glauca D. G. Kelch 2006-12-9 6 .542 Orange Along Newport Back Bay Dr. in side canyon. Comment
  RSA701973  Nicotiana glauca Fred M. Roberts, David E. Bramlet 2003-6-20 5925 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  UCR100462  Nicotiana glauca B. G. Pitzer 1996-4-30 2761 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR217290  Nicotiana glauca Mark A. Elvin 2003-3-30 2394 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  POM201710  Nicotiana glauca L. M. Booth 1932-7-30 1338 Orange Santa Ana River, 2 miles from ocean Comment
  RSA263685  Nolina cismontana E. W. Lathrop 1976-6-28 7506 Orange 4 miles northeast of Lake Irvine, Black Star canyon, Cleveland Nat l Forest, Trabuco dist. Comment
Read comments
Jan 2 2008
  RSA615785  Nolina cismontana James C. Dice, Oberbauer 1986-5-3 651 Orange 0.2 km west of Trabuco Canyon. 365 Comment
  RSA716093  Nolina cismontana Fred M. Roberts, Carol A. Roberts 2006-4-28 6323 Orange Mision Viejo: near Vista del Lago Dr., 0.9km NE jct. Vista del Lago and Los Alios Blvd., 1.7km NNW Lake Mission Viejo dam. 211 Comment
  RSA725582  Nolina cismontana Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6532 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
  SD121705  Nolina cismontana James C. Dice, Thomas Oberbauer 1986-5-3 650 Orange Santa Ana Mountains, 0.2 km west of the community of Trabuco Canyon and ca. 1 km east of O'Neill Regional Park. Locally common of east-facing slope. 365 Comment
  SD142046  Nolina cismontana James C. Dice 1985-5-23 594 Orange Santa Ana Mts., upper Borrego Cyn., along Santiago Cyn. Rd., 1.8 km S of Modjeska Cyn. Rd. 440 Comment
  UCR189550  Nyctocereus serpentinus Fred M. Roberts, R. L. Allen 2007-9-28 6615 Orange Santa Ana Mountains, Silverado Canyon, along Silverado Canyon Rd. at eastern edge of town of Silverado 347 Comment
  UCR222862  Oenothera elata T. B. Salvato 2010-10-27 5130 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  UC1007125  Oenothera elata subsp. hookeri P. A. Munz 1938-6-23 15569 Orange 1 mi below Capistrano; San Juan Creek Comment
  RSA785416  Oenothera pallida var. californica Keith E. Hoffmaster 1927-4-3 463 Orange Near Buena Park. Comment
  JEPS25886  Oligomeris linifolia L. M. Booth 1932-5-24 1097 Orange Newport Bay Comment
  POM506  Oligomeris linifolia D. L. Crawford s.n. Orange Aliso Pt. (Laguna Beach region) Comment
  RSA399174  Oligomeris linifolia Unspecified 1915-01 s.n. Orange Redondo. Comment
  UCR235514  Oncosiphon piluliferum R. E. Riefner Jr. 2011-5-20 11- 57 Orange South Coast, Newport Beach, Coastal Peak Park, East Coastal Peak Road at Ridge Park Road 305 Comment
  RSA649688  Opuntia R. E. Riefner 2000-8-23 20 -733 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  UCR237804  Opuntia X occidentalis Mark A. Elvin 2004-5-2 3412 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  POM285352  Opuntia littoralis Lyman Benson 1955-10-17 15596 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  CAS-BOT-BC58075  Opuntia vaseyi John Thomas Howell 1927-6-22 2574 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  JEPS126146  Orobanche californica subsp. jepsonii Bob Allen with Alison Colwell 2005-7-21 05 -101 Orange Whiting Ranch Wilderness Park. Comment
  POM156459  Orthocarpus densiflorus var. gracilis L. R. Abrams 1903-4-18 3266 Orange Near San Juan Capistrano Comment
  UC421704  Osmadenia tenella John Thomas Howell 1927-7-28 2867 Orange Santa Ana Canyon 182 Comment
  SEINET10842082  Osmadenia tenella Tom Hensel 1973-7-8 Hensel 254 Orange Hillside south of current end of Santa Ana Dr. (855 Santa Ana), Laguna Beach. Comment
  RSA160508  Osmorhiza brachypoda J. D. Olmsted 1959-4-23 464 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  OBI8001  Oxalis pes-caprae Kurt R. Neisess 1975-12-18 s.n. Orange Disturbed area in Fullerton Hills Comment
  POM278932  Oxalis pes-caprae Lyman Benson, Cora W. Benson 1929-1-19 s.n. Orange Santa Ana 61 Comment
  SBBG105032  Oxalis pes-caprae S. Boyd, T. Ross 1994-3-22 8203 B Orange San Juan Cyn along San Juan Crk near confluence with Hot Springs Cyn 228 Comment
  RSA2087  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
  UCR142521  Paeonia californica D. E. Bramlet 2000-4-7 2945 Orange Peninsular Ranges: Santa Ana Mts. region, 30m south of the SCE maintenace road and 1 km east of Weir Canyon, 1.5km west of Blind Canyon 287 Comment
  RSA698740  Paeonia californica Mary Oliver s.n. Orange Santa Ana canyon. Comment
  SD247340  Pallenis maritima R. E. Jr. Riefner 2012-11-14 12 551 Orange City of Newport Beach, south of Poppy Street/Ocean Boulevard, coastal bluff near Little Corona Beach, rocky intertidal area. 4 Comment
  RSA651754  Panicum capillare Diane T. Liggett 1981-5-16 18 Orange Freeway (91) east to Gypsum Cyn. Road, north ot Featherly Park entrance, east to bike trail, .1 km east. Comment
  RSA92454  Panicum capillare F. W. Peirson 1924-10-19 5230 Orange Wintersberg Comment
  CAS-BOT-BC389660  Panicum coloratum R. E. Riefner, Jr. 2014-7-6 14 -218 Orange City of Los Alamitos, along Los Alamitos Channel, E of 605 Fwy., N of Katella Ave., S of Coyote Creek, NE of Oak Academy Park, vicinity of Adobe Dr. and Acorn Ln. 11 Comment
  UC537118  Parapholis incurva Lawrence M. Booth 1932-5-12 1009 Orange Newport Bay Comment
  UCD88687  Parapholis incurva Louis C. Wheeler 1947-5-3 6475 Orange Newport Bay. Comment
  POM202594  Parapholis incurva L. M. Booth 1932-5-12 1009 Orange Newport Bay. Comment
  UCR230235  Parkinsonia aculeata Dick Newell, Don Millar 2011-3-22 090 Orange Peninsular Range; Santa Ana Mtns., Santiago Canyon Road, 1.2 miles east of 261 Toll Road 286 Comment
  RSA0088873  Parthenium hysterophorus Jan West 2015-4-22 s.n. Orange Santa Ana, SE corner of E 17th St. and Lincoln Ave., 0.5 km east of I-5 on 17th. 49 Comment
  UCR261556  Parthenium hysterophorus Jan West 2015-4-22 s.n. Orange Santa Ana, SE corner of E 17th St. and Lincoln Ave., 0.5 km east of I-5 on 17th 49 Comment
  UCR44904  Paspalum dilatatum B. G. Pitzer, L. F. LaPre 1986-10-20 319 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  UCSB40900  Paspalum dilatatum Roos, John 1936-10-13 Orange Costa Mesa near Santa Ana Comment
  RSA443823  Paspalum dilatatum Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel, just N of Warner St. bridge crossing, (No. C05) Comment
  CAS-BOT-BC259735  Paspalum distichum Frank W. Peirson 1924-5-31 4648 Orange Laguna Canon. 350 Comment
  RSA710413  Paspalum distichum Fred M. Roberts 2005-10-3 6301 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  UCSB47945  Paspalum distichum Roberts, Dar 1980-5-4 Orange Camino Capistrano Rd. below bridge. (Crown Valley Pkwy) 30 Comment
  RSA724061  Paspalum urvillei R. E. Riefner 2005-11-4 5 -742 Orange City of Lake Forest, Alton Pkwy. at Bertea Rd. 123 Comment
  CAS-BOT-BC353419  Paspalum vaginatum R. E. Riefner, Jr. 2013-12-12 13 -375 Orange City of Dana Point, near Ritz-Carlton Hotel, Salt Creek Beach area 2 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
  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
  RSA737240  Paspalum virgatum R. E. Riefner, K. Campbell 2008-8-31 08 -267 Orange Orange County: city of Irvine, San Diego Creek, E side of Hwy 73 overpass, alt 2ft. 1 Comment
  RSA1458  Pedicularis densiflora E. R. Johnson 1929-4-11 1259 Orange Sierra Peak Trail. Comment
  UCR188941  Pelargonium X domesticum Robert DeRuff 2004-1 547 A Orange Newport Beach, Upper Newport Bay, Eastbluff North area 25 Comment
  SD174883  Pelargonium grossularioides Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal: UCI Arboretum, growing wild in the Arboretum grounds, not cultivated. 14 Comment
  UCR159812  Pelargonium grossularioides Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal, UCI Arboretum 15 Comment
  CAS-BOT-BC67762  Pellaea andromedifolia Ira L. Wiggins 1966-2-4 20420 Orange Among rocks on floor of Trabuco Cnayon, about 1/2 mile above canyon mouth. Comment
  CHSC60  Pellaea andromedifolia S. Westerberg 1938-3-24 Orange Santa Ana. Comment
  RSA699317  Pellaea andromedifolia Fred M. Roberts, D. E. Bramlet 2003-5-1 5695 Orange Rancho Mission Viejo; Donna O'Neil Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km W of Cristianitos Rd. 110 Comment
  RSA773505  Pellaea andromedifolia Fred M. Roberts 1999-5-14 5225 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 490 Comment
  RSA637491  Pellaea andromedifolia var. andromedifolia Valerie L. Soza, LeRoy Gross 1999-6-8 506 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA640077  Pellaea andromedifolia var. andromedifolia E. Robinson, Crocker 1916-3-29 s.n. Orange Santa Ana Mts. Miller's Canyon, near Murrietta. Comment
  UC1543033  Pellaea mucronata var. mucronata Donald G. Nelson 1935-4-6 241 Orange e of San Juan Capistrano (and just s of boundary of Cleveland Nat'l Forest, canyon with stream branching n from summer ranger station on main hwy); San Juan Canyon Comment
  IRVC14100  Pellaea mucronata var. mucronata K. Marvosh 1966-5-1 Orange Harding Canyon, 1mi up canyon, 400ft up on slope; dry rocky slope in chaparral and coastal sage scrub. Santa Ana Mountains Comment
  RSA328946  Pennisetum ciliare var. ciliare J. West 1983-10-8 s.n. Orange City of Orange. Comment
  UCR193469  Pennisetum clandestinum A. C. Sanders, T. B. Salvato 2008-5-13 35350 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
  UCD89453  Pennisetum purpureum F. M. Reed 1933-9-3 8030 Orange north of Dana Point. Comment
  RSA125875  Pennisetum setaceum P. H. Raven 1957-9-28 11395 Orange Laguna Beach. Comment
  VVC489  Penstemon cordifolius P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  RSA761801  Penstemon grinnellii Robert Allen 2003-6-22 12272 Orange Northwest-facing flank of Santiago Peak, along North Main Divide Road. 1556 Comment
  RSA790700  Penstemon heterophyllus R. H. McArthur 1934-4-21 1 Orange PR8. Black Star Canyon. Comment
  UCSB52446  Penstemon heterophyllus var. australis Roberts, Fred 1982-7-20 Orange Santa Ana Mtn; 0.2 km N Falcon Group Camp: 2.0 km ESE Los Pinos Peak 1010 Comment
  UC1063198  Penstemon spectabilis A. Lewis May 1934 436 Orange Los Pinos Peak Cleveland National Forest, Elsinore Quad. Comment
  CAS-BOT-BC330342  Pentachaeta aurea P. C. Everett 1935-4-22 6463 Orange Santa Ana Canyon, 0.25 mi W of Horseshoe Bend 121 Comment
  CAS-BOT-BC330343  Pentachaeta aurea P. C. Everett 1935-4-22 6463 Orange Santa Ana Canyon, 0.25 mi W of Horseshoe Bend 121 Comment
  POM50883  Pentachaeta aurea L. R. Abrams 1901-06 1787 Orange San Joaquin Hills Comment
  RSA751315  Pentachaeta aurea subsp. allenii A. C. Sanders, Fred M. Roberts 2008-5-6 35272 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  RSA0066081  Pentagramma triangularis Valerie L. Soza, LeRoy Gross 1999-6-7 482 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  SBBG16546  Peritoma arborea E. B. Carlton 1961-9-3 C 6 Orange E of Hidden Valley Rd, ca. 1 mi from Brdway and S Coast Blvd, Laguna Beach Comment
  SD224906  Peritoma arborea B. Pitzer 1996-4-30 2796 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (= Pacific Coast Hwy). 14 Comment
  UCSB13406  Peritoma arborea Whittington, M. 1962-4-20 Orange South side of Back Newport Bay, about 250 yards south of salt works, Newport Comment
  CAS-BOT-BC77510  Peritoma arborea var. arborea Carl B. Wolf 1932-3-8 2684 Orange 1/2 mi. No. of Corona Del Mar, borders of Newport Bay 7 Comment
  CAS-BOT-BC418842  Persicaria hydropiperoides Le Roy Abrams 1901-6-11 1754 Orange New River near Long Beach Comment
  CAS-BOT-BC418843  Persicaria hydropiperoides Carl B. Wolf 1932-6-13 3719 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  RSA0043359  Persicaria lapathifolia Fred M. Roberts, Laura Cohen 2012-10-31 7716 Orange San Joaquin Hills: Laguna Lake 1 (Upper Laguna Lake), north end. Laguna Coast Wilderness Park, ca. 5.1 km ENE Signal Hill. 113 Comment
  RSA13072  Phacelia brachyloba Percy C. Everett 1935-7-11 7267 Orange Santa Ana Mts, Main Divide Motorway, 1.7miles N of Jct with Trabuco Can road. 1220 Comment
  POM49691  Phacelia cicutaria var. hispida L. R. Abrams 1902-1 512 Orange Santiago Creek Canyon. Comment
  POM7744  Phacelia cicutaria var. hispida Florence Breckenridge 1920-4-17 s.n. Orange Hills north of Laguna. Comment
  UCR192455  Phacelia cicutaria var. hispida A. C. Sanders, Fred M. Roberts 2008-3-25 34575 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UCR228808  Phacelia cicutaria var. hispida Dick Newell, Don Millar 2011-5-24 160 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Haul Road 286 Comment
  RSA650825  Phacelia distans Daniel Truong 1991-5-5 11 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area' . Comment
  RSA74144  Phacelia distans F. W. Peirson 1923-5-5 4713 Orange Trabuco Canyon, Santa Ana Mountains 518 Comment
  UCR190963  Phacelia distans A. C. Sanders, Fred M. Roberts 2008-4-22 35040 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map 457 Comment
  UCR224037  Phacelia distans Justin M. Wood 2010-3-31 1445 Orange Santa Ana Canyon, Santa Ana River floodplain, 0.25 mi north of Coal Canyon wildlife corridor, west of Green River Golf Course on bluff south of the river 122 Comment
  UCR230241  Phacelia distans Dick Newell, Don Millar 2011-3-15 085 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, top of Agua Chinon Wash along Limestone Cyn. Rd. 454 Comment
  RSA605  Phacelia distans J. T. Howell 1927-6-24 209 Orange Olinda 152 Comment
  RSA697786  Phacelia hispida Kenneth Beard s.n. Orange Silverado Canyon. Comment
  RSA699654  Phacelia hispida Keith E. Hoffmaster 1934-4-22 s.n. Orange Santa Ana Mountains Comment
  RSA738985  Phacelia hispida Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA738986  Phacelia hispida Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA2096  Phacelia imbricata subsp. bernardina E. R. Johnson 1931-6-1 2233 Orange Roundtop, Rancho Santa Ana. 457 Comment
  RSA59990  Phacelia minor Verne Grant, Alva Grant 1949-4-23 8660 Orange West entrance of Cleveland National Forest on Hywy 74. Comment
  UCSB48211  Phacelia minor Roberts, Jr., Fred 1981-5-3 Orange Santa Ana Mtns.; Hot Springs Canyon, 1.3 km. NNE San Juan Guard Station 276 Comment
  RSA699143  Phacelia parryi G. Gentges 1932-5-8 s.n. Orange Silverado Canyon Wash. Comment
  RSA732082  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-3-25 34551 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 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
  UCR263590  Phacelia parryi Ed Kentner 2012-4-5 126 Orange Lomas de Santiago, Whiting Ranch Wilderness Park 330 Comment
  UCR16840  Phacelia ramosissima N. J. Moriarty 1973-5-20 730520- 5 Orange Huntington Beach, 0.6 mi. north of Newland Street on the E side of Pacific Coast Hwy (= Hwy 1) Comment
  UCR239645  Phacelia ramosissima Fred M. Roberts 2012-5-9 7554 Orange Santa Ana Mountains, Lake Forest, along Serrano Creek hiking trail, 0.7 m south-southwest of intersection of Commercentre and Dimension Drives 152 Comment
  UC537166  Phacelia ramosissima var. austrolitoralis L. M. Booth 1932-5-19 1060 Orange Newport Bay Comment
  RSA0003878  Phacelia ramosissima var. austrolitoralis J. T. Howell 1927-7-17 421 Orange Near Laguna Beach Comment
  CAS-BOT-BC145005  Phacelia ramosissima var. latifolia John Thomas Howell 1927-6-21 2567 Orange Arroyo in hills on north side of Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC145006  Phacelia ramosissima var. latifolia John Thomas Howell 1927-6-21 2567 Orange [Canon] Canyon in west side of Botany Garden, Rancho Santa Ana, Santa Ana [Canon] Canyon 152 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
  RSA699161  Phacelia viscida Unspecified s.n. Orange Orange County park. Comment
  IRVC22741  Phalaris aquatica Fred M. Roberts 1985-5-15 1802 Orange El Toro Canyon, El Toro Rd., 1.1km NE jct. Laguna Canyon Rd., Aliso Viejo 88 Comment
  UCR170304  Phalaris aquatica Karlin G. Marsh 1982-8-13 s.n. Orange Santa Ana Mountains, south of Trabuco Canyon, Hendricks parcel 427 Comment
  UCD89033  Phalaris minor A. A. Beetle 1942-4-19 3091 Orange 20 miles S of Santa Ana, road to Laguna. Comment
  CDA22565  Phalaris paradoxa J. B. Anderson 1966-4-26 620 Orange University of California, Irvine. South of Science Lecture Hall. 0 Comment
  RSA627786  Phalaris paradoxa Scott D. White 1998-6-26 6786 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  RSA599635  Phalaris paradoxa Fred M. Roberts, Nigel Hancock 1995-5-25 4950 Orange Costa Mesa: Fairview Park, just west of end of Canyon Drive, 0.1 km W Canyon School 24 Comment
  SEINET10946467  Philodendron Thomas B. Croat 2003-4-5 Croat 87593 Orange Cultivated Plants from Rick M. Cirino, Cosa Mesa, California. Comment
  UCR217471  Phoenix canariensis Mark A. Elvin 2003-2-23 2318 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA459265  Pholistoma auritum M. B. Dunkle 1935-3-3 4347 Orange San Juan Canyon. 457 Comment
  RSA459266  Pholistoma auritum Albert J. Perkins 1914-3-9 s.n. Orange Laguna Beach Comment
  UCR261684  Pholistoma auritum var. auritum Dick Newell, Don Millar 2015-3-24 392 Orange South Coast, San Joaquin Hills, on Willow Canyon Trail 0.2 mi. west of Laguna Coast Wilderness Park entrance off Laguna Canyon Rd. 88 Comment
  UCR234156  Phoradendron macrophyllum Dick Newell, Peter Wetzel 2012-1-3 223 Orange Peninsular Range; Santa Ana Mtns. Region, Peralta Hills, Villa Park, west of Chapman Ave. & Newport Blvd. 198 Comment
  UC1714568  Phyla lanceolata D. L. Crawford 1916-7-26 Orange Laguna Canyon; Laguna Beach Region, Laguna Canyon Comment
  RSA305659  Phyla nodiflora C. W. Tilforth, B. Busenberg 1979-11-14 1927 Orange North of Marina parking lot at Dana Point Comment
  RSA683932  Phyllospadix scouleri E. Yale Dawson 1957-2-14 16149 Orange Laguna Beach, Orange County Comment
  CLARK-A1528-4427  Phyllospadix torreyi John C. Roos 1960-8-27 Orange Dana Point Comment
  RSA384024  Phyllospadix torreyi Gigas 1832-6-26 15492 Orange Laguna Beach. Comment
  RSA684059  Phyllospadix torreyi E. Yale Dawson 1958-1-5 18105 Orange E side of Crystal Cove. Station no 42. 120 ft from shore base point. Comment
  RSA0127348  Physalis crassifolia Fred M. Roberts 2016-5-3 8051 Orange City of Irvine: San Joaquin Hills, Turtle Rock Community above Ridgeline Road, 0.7 km ESE summit of French Hill. 107 Comment
  RSA0127602  Physalis crassifolia Fred M. Roberts 2016-3-25 8032 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
  UCR266401  Physalis crassifolia D. E. Bramlet 1994-4-30 2374 Orange South Coast; San Joaquin Hills, small knoll SE of the Sand Canyon Reservoir, 524 ft. east of the bottom of Shady Canyon, near Irvine 80 Comment
  RSA759246  Pickeringia montana var. tomentosa Robert Allen, Celia Kutcher 2007-5-19 s.n. Orange San Juan Trail, North flank of [New] Sugarloaf Peak, circa 2.2 air miles (3595) below (southwest of) trailhead at southern edge of Blue Jay Campground. Circa 2.5 air miles (3973m) above (northeast of) trailhead at Hot Springs Canyon. 886 Comment
  RSA759536  Pickeringia montana var. tomentosa Robert Allen, Nancy Heuler 2007-5-19 s.n. Orange San Juan Trail, circa 3.1 air miles below (SW of) trailhead at southern edge of Blue Jay Campground, circa 1.6 air miles above (NE of) trailhead at Hot Springs Canyon. 782 Comment
  CDA25206  Picris echioides A. C. Sanders, Fred M. Roberts 2008-8-7 35993 Orange Peninsular Range; Santa Ana Mountains.; Lower Weir Canyon, at narrow gorge c. 0.6 mile above mouth of canyon at Irvine Ranch gate. Comment
  POM202174  Picris echioides L. M. Booth 1932-6-7 1168 Orange Newport Lagoon. Comment
  RSA734119  Picris echioides A. C. Sanders 2008-4-29 35143 Orange Peninsular Range;Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridgeon road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  RSA696194  Picris echioides Anonymous s.n. Orange Santa Ana Comment
  RSA655237  Pilularia americana D. E. Bramlet 1998-3-21 2579 Orange Fairview Park, City of Costa Mesa. The site is located some 366m N of the intersection of Wilson and Canyon Dr. and 152 m W of the Canyon School, on a mesa overlooking the Santa Ana River. 24 Comment
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Feb 26 2009
  SD136372  Pinus attenuata Carl B. Wolf 1934-12-21 Orange south slope of main ridge, saddle northwest of Sugarloaf Peak, 1.3 mile south of summit of Skyline Drive, Santa Ana Mountains Comment
  UCD169804  Pinus attenuata R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49694 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  RSA7645  Pinus coulteri C. B. Wolf 1933-12-24 5386 Orange Approximately the head of Highway Canyon on slope of Modjeska Peak, on the road to the Santa Ana Mts. Altitude 4000 ft 1220 Comment
  SD255023  Pinus coulteri R. F. Thorne, E. W. Lathrop 1977-5-18 79731 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail. Comment
  CDA23161  Pinus halepensis Mark A. Elvin, D. G. Kelch 2006-12-9 5318 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  RSA659356  Pinus halepensis P. Shirokawa 1998-5-15 42 Orange Cleveland National Forest- Trabuco Ranger District, 4.25 miles from Ortega Highway (State Highway 74) on North Main Divide Road, and 0.5 miles into Falcon campground 1067 Comment
  RSA599183  Piptatherum miliaceum Scott D. White 1997-3-28 4826 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA734904  Piptatherum miliaceum A. C. Sanders 2008-5-28 35438 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA735973  Piptatherum miliaceum Scott D. White, Justin M. Wood 2008-4-22 11905 Orange Telegraph Canyon Road, E of Carbon Canyon Regional Park. 152 Comment
  UCSB22859  Piptatherum miliaceum Booth, Lawrence 1932-6-7 Orange Balboa Island, Newport Bay Comment
  CAS-BOT-BC254389  Piptatherum miliaceum Ira L. Wiggins 1965-9-26 20256 Orange Along N margin of La Vida property, above the hot springs Comment
  UCR191345  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-4-8 34742 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR222387  Plagiobothrys collinus Mark A. Elvin 2003-1-26 2237 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  IRVC9331  Plagiobothrys collinus var. californicus C. Leavell 1966-3-16 59 Orange El Toro Rd. near Post Office; in open field. El Toro Comment
  RSA696205  Plagiobothrys collinus var. californicus Minor Warne 1934-3-10 s.n. Orange Wash near El Toro Comment
  RSA450855  Plagiobothrys collinus var. gracilis Gordon Marsh 1978-3-17 s.n. Orange U.C. Irvine Ecological Preserve. 85 Comment
  SBBG16000  Plagiobothrys nothofulvus D. E. Breedlove 1962-3-9 1795 Orange 4.4 mi E of San Juan Capistrano on St Hwy 74 112 Comment
  UC1929780  Plagiobothrys nothofulvus Scott D. White, Amanda Duchardt 2003-3-27 8858 Orange SANTA ANA MOUNTAIN FOOTHILLS: Canyon bottom and west facing slopes above Canada Gobernadora. Comment
  RSA695839  Plagiobothrys tenellus J. R. Bruff s.n. Orange Modjeska s Home Comment
  RSA666092  Planodes virginica Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5430 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 226 Comment
  RSA678750  Plantago coronopus Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1121 -a Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCR237838  Plantago elongata Mark A. Elvin 2003-2-2 2261 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA401950B  Plantago erecta Anstruther Davidson 1910-04 2475 Orange Corona Del Mar. Comment
  RSA401987B  Plantago erecta Anstruther Davidson 1910-4-1 s.n. Orange Corona Del Mar. Comment
  RSA764441  Plantago erecta Doris Bowers 1971-4-19 1684 Orange Black Star Canyon Indian Site 762 Comment
  UCR106273  Plantago erecta B. G. Pitzer 1997-3-25 3024 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  RSA3165  Plantago erecta Carl B. Wolf 1932-3-8 2698 Orange Santiago Dam at W base of Santa Ana Mts. 305 Comment
  JEPS4909  Plantago subnuda Lawrence M. Booth 1932-6-17 1208 Orange Bolsas Creek Comment
  RSA750924  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-7-3 35700 Orange Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  RSA753025  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-6-17 35471 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  SD236359  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-6-17 35471 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, Agustine staging area near Limestone Canyon Road gate at Santiagon Cyn Rd. 259 Comment
  JEPS51625  Platystemon californicus Alice King 1908-3-12 Orange Anaheim Plains Comment
  RSA722432  Platystemon californicus Frances Battey s.n. Orange Laguna Hills. Comment
  CDA7064  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Lane and Polaris Drive. Comment
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Dec 13 2012
  SBBG126059  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 -312 Orange vicinity of W St and Pacific Coast Hwy; City of Laguna Beach 4 Comment
  SD239618  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-7-7 11 88 Orange City of Dana Point, S of Mussel Cove, N of Salt Creek Beach Park. 7 Comment
  UCR247516  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-7-9 08- 220 Orange South Coast, Laguna Beach, bluff area west of West St and Pacific Coast Hwy 11 Comment
  RSA731530  Plecostachys serpyllifolia R. E. Riefner 2006-7-26 06 -319 Orange City of Irvine, along N side of Irvine Blvd. at SR 133 on-ramp. 62 Comment
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Dec 13 2012
  RSA766077  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 -312 Orange City of Laguna Beach, vicinity of West St. and Pacific Coast Hwy. 4 Comment
  CDA20039  Pluchea odorata J. Dourte 2002-9-13 PDR 1254189 Orange Southwestern California; Santa Ana River in the vicinity of Anaheim. 0 Comment
  SD125377  Pluchea odorata var. odorata C. W. Tilforth 1975-9-6 1048 Orange Northeast shoreline of Upper Bay, Newport Beach. Comment
  RSA702939  Pluchea purpurascens Scott D. White 2004-7-7 10605 Orange South Coast: Laguna Niguel. 61 Comment
  UCR67014  Pluchea purpurascens A. C. Sanders 1990-10-6 10185 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  LA203865  Pluchea sericea J. A. Ewan; 1932-7-9 7488 Orange Santa Ana River, 4 mi. below Rincon Comment
  SD237347  Pluchea sericea Dick Newell, Don Millar 2010-4-27 20 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Agua Chinon wash 1/4 mile north of Hwy 241 toll road. 226 Comment
  IRVC25406  Poa secunda Fred M. Roberts 1987-4-3 3330 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
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Feb 17 2017
  RSA731973  Poa secunda A. C. Sanders, Fred M. Roberts 2008-4-8 34764 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd 457 Comment
  CAS-BOT-BC94725  Poa secunda subsp. secunda R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 719 Orange Chino Hills State Park. South Ridge Road W of San Juan Hill, going W from Equestrian Staging Area. Top of ridge 1450 Comment
  SD152888  Polycarpon tetraphyllum Steve Boyd, Tim Ross 1992-5-19 7451 Orange Southern Santa Ana Mountains, western edge of the wilderness in Lucas Canyon at the Lucas Canyon Trail crossing. 320 Comment
  CLARK-A1528-3939  Polygala cornuta subsp. fishiae John C. Roos 1960-5-30 Orange Santa Ana Mountains Comment
  RSA5351  Polygala cornuta var. fishiae Carl B. Wolf 1932-12-19 4433 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA561496  Polygala cornuta var. fishiae Steve Boyd, Kyle Boyd 1992-7-9 7654 Orange Northern Santa Ana Mountains, along the main crest of the range, north of Pleasants Peak and south of Oak Flat (aka Oat Flat), 1.5 miles south of junction of Main Divide and Skyline Roads. Comment
  RSA0051242  Polygonum aviculare Keith E. Hoffmaster 1934-1 491 Orange Santa Ana. Comment
  UCSB41859  Polygonum aviculare Matkin, Craig 1971-3-19 Orange At the corner of Chapman and Bitterbush in Orange. Comment
  RSA756069  Polygonum hydropiperoides T. B. Salvato, Billy Deane 2006-10-16 1927 Orange Irvine, San Diego Creek flood control channel, between Michelson Driveand the 405 Fwy. 9 Comment
  RSA788965  Polygonum lapathifolium Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49580 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  IRVC21327  Polypodium californicum Fred M. Roberts, K. G. Marsh 1984-2-15 1190 Orange Casper's Regional Park: Rancho Carrillo Rd., 4.4km NE Visitors Center; 0.5km ENE Lucas Survey mark. Southern Coastal 415 Comment
  IRVC25292  Polypodium californicum Fred M. Roberts 1987-3-24 3267 Orange Laguna Beach: Goff Ridge, south of Nyes Place Rd., 0.9km NNE of Goff Island. Southern Coastal 169 Comment
  RSA680532  Polypodium californicum Scott D. White 2003-3-21 8806 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  IRVC21428  Polypodium californicum A. S. Boughey 1969-3-18 s.n. Orange Ortega Highway; 2mi E of San Juan Guard Station. Southern Coastal Comment
  IRVC23141  Polypogon interruptus Fred M. Roberts 1985-7-10 2006 Orange Capistrano Beach: San Juan Creek, 0.5km from the ocean, 0.2km N of Pacific Coast Highway. southern coastal 2 Comment
  CAS-BOT-BC237263  Polypogon monspeliensis Peter H. Raven 1956-8-4 10008 Orange E of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e., ca. 2-4 miles E of I-15/Highway 74 junction 75 Comment
  CDA26007  Polypogon monspeliensis Mark A. Elvin, B. S. Nerhus 2006-11-4 5247 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  IRVC14815  Polypogon monspeliensis A. S. Boughey 1968-7-9 399 Orange Upper Santiago Canyon. Santa Ana Mountains Comment
  IRVC14816  Polypogon monspeliensis A. S. Boughey 1968-7-9 399 Orange Upper Santiago Canyon. Santa Ana Mountains Comment
  IRVC21785  Polypogon monspeliensis Fred M. Roberts 1985-2-25 1456 Orange Irvine: Irvine Ranch; east of MacArthur Blvd., 1.2km W UCI campus; 1.7km SE Bay View School. Southern Coastal 24 Comment
  RSA696612  Polypogon monspeliensis Jeanne Paxton 1934-5-18 s.n. Orange Lemon Heights 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
  RSA679095  Polystichum imbricans subsp. curtum Fred M. Roberts 2003-6-25 5950 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA725534  Populus Fred M. Roberts 2007-9-11 6570 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  CAS-BOT-BC108544  Populus balsamifera R. E. Jr. Riefner 2006-4-8 06 -111 Orange South Coast: San Juan Capistrano (city), San Juan Creek at La Novia Ave. (San Juan Capistrano 7.5' Q.) 21 Comment
  RSA0035664  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2012-9-23 12 -512 Orange city of Yorba Linda, Santa Ana Canyon, north side of Santa Ana River, La Palma Avenue at Via Del Rio Road 104 Comment
  RSA644958  Populus balsamifera subsp. trichocarpa R. E. Riefner, Adrian Wolf 2000-1-24 20 -116 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N of Saniago Creek and immediately N. of major stream fork. 305 Comment
  RSA752893  Populus balsamifera subsp. trichocarpa A. C. Sanders, Fred M. Roberts 2008-8-7 35974 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 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
  UC1134818  Populus trichocarpa A. Lewis Mar 1934 336 Orange Santa Ana Canyon; Corona Quad., Santa Ana Canyon Comment
  CAS-BOT-BC356151  Porophyllum gracile John Thomas Howell 1929-3-2 4097 Orange In hills on n. side of Santa Ana Canon [Canyon], 1/2 mile east of Horseshoe Bend 152 Comment
  RSA488122  Porophyllum gracile Karlin G. Marsh 1984-2-15 1188 Orange Santa Ana Mtns: Casper's Regional Park, Rancho Carrillo Road, 4.4km NE visitor Center, 0.5km ENE Lucas Survey Mark, alt 415m 415 Comment
  SD144030  Porophyllum gracile Scott D. White 1997-3-28 4841 Orange Santa Ana Mountains, above Modjeska Canyon. 424 Comment
  CDA19003  Porophyllum ruderale R. Guerrero 2000-10-17 PDR 1223098 Orange next to Seal Beach Naval Weapons Station, Seal Beach. 0 Comment
  RSA0054902  Portulaca oleracea Keith E. Hoffmaster 1936-10-5 728 Orange Santa Ana. Comment
  UC455170  Potamogeton nodosus I. J. Condit 1908-7-25 Orange Huntington Beach Comment
  RSA797914  Potentilla glandulosa subsp. glandulosa Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49824 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA708440  Prosopis glandulosa var. torreyana Mark Elvin 2004-5-2 3419 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  RSA50431  Prunella vulgaris var. lanceolata G. R. Campbell 1949-6-28 13991 Orange grown in Botanic Garden. Comment
  RSA650384  Prunus Jack D. Ingwersen 1962-5-12 s.n. Orange Anaheim Comment
  RSA443844  Prunus ilicifolia Gordon Marsh, Karlin G. Marsh 1977-5-2 s.n. Orange Pine Canyon, between Blue Light Mine and second mine, near swithback. Comment
  CAS-BOT-BC356379  Pseudognaphalium beneolens John Thomas Howell 1927-7-16 2782 Orange Hills on north side of Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC356380  Pseudognaphalium beneolens Frank W. Peirson 1923-9-7 4042 Orange Santiago Peak, Holy Jim Canon [Canyon] trail Comment
  RSA609007  Pseudognaphalium biolettii L. M. Booth 1932-5-19 1067 Orange Newport Bay Comment
  UC537076  Pseudognaphalium biolettii Lawrence M. Booth 1932-5-19 1067 Orange Newport Bay Comment
  UCD135053  Pseudognaphalium biolettii R. Townsend 1939-12-29 164 Orange Lower Telegraph Canyon. Comment
  RSA0126623  Pseudognaphalium californicum Fred M. Roberts 2012-4-24 7506 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
  SEINET9307949  Pseudognaphalium californicum Unknown 1996-5-11 19 Orange Newport Back Bay, 25 yrds in along bike path. Dry coastal mudflat dominated by Typha. Comment
  CAS-BOT-BC502069  Pseudognaphalium leucocephalum R. E. Riefner, Jr. 2015-12-9 15 -459 Orange Rancho Mission Viejo, E of San Juan Capistrano, San Juan Creek, W of Antonio Pkwy, N side of Ortega Hwy (Hwy 74), near Sendero Field Park 55 Comment
  SD187362  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 55 Orange San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. 29 Comment
  SD240897  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2011-10-19 11 147 Orange City of San Juan Capistrano, San Juan Creek, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo Street. 31 Comment
  UC2027329  Pseudognaphalium leucocephalum Robert Lee Allen 2012-8-11 Orange Santa Ana Mts, Caspers Wilderness Park, Bell Canyon. Comment
  RSA682602  Pseudognaphalium luteoalbum Scott D. White, Pam DeVries 1998-12-10 7201 Orange Brea: Tonner Canyon and adjacent slope, just east of 57 Freeway crossing. 137 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
  UCSB47639  Pseudotsuga macrocarpa Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, on east side of road, 0.4 km. W Trabuco peak, Santa Ana Mtns. 1341 Comment
  UCR208623  Psilocarphus brevissimus O. F. Clarke 2004-5-19 s.n. Orange South Coast, Fairview Park, Costa Mesa 24 Comment
  UCR238214  Psilocarphus brevissimus Mark A. Elvin 2003-3-30 2386 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA608536  Psilocarphus brevissimus D. Bramlet 1993-4-25 2333 Orange University of California, Irvine Campus, UCI Ecological Reserve. This site is 150 ft. south of Berkeley Ave. and 1000 ft. west of the northeast reserve entrance 41 Comment
  UCR152760  Psilocarphus brevissimus var. brevissimus D. E. Bramlet 2004-3-26 3543 Orange South Coast, Fairview Park in Costa Mesa, 183 m west of Canyon School and 366 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  UCSB56681  Psilocarphus tenellus Roberts, Jr., Fred 1983-5-1 Orange Dana Point; hills, 1.0 km. NNW Dana Hills Highwa School; 1.6 km. NE Bench Mark 150 98 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
  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
  RSA588892  Pteridium aquilinum var. pubescens Fred M. Roberts 1990-6-4 4662 Orange Santa Ana Mts. Hall Canyon, 1.8 km NNW Mustand Spring at east edge of flying B Ranch. 421 Comment
  POM280432A  Pterostegia drymarioides Lyman Benson 1932-3-26 3196 Orange Dana Point. 61 Comment
  RSA607243  Pterostegia drymarioides R. S. Woglum 1938-5-8 1618 b Orange Peninsular Ranges: Capistrano to Elsinore; Santa Ana Mountains [Orange/Riverside counties]. Comment
  UCSB48050  Pterostegia drymarioides Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point Headlands: north of Dana Strand Road, 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School 80 Comment
  CAS-BOT-BC362145  Pulicaria paludosa Robert L. Pope 1960-7-9 s.n. Orange Roadside approximately 0.5 mile north of Yorba Linda turnoff, Santa Ana Canyon Comment
  CAS-BOT-BC362146  Pulicaria paludosa Robert L. Pope 1959-8-14 s.n. Orange Ray Miller prop., 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
  RSA689537  Pulicaria paludosa R. E. Riefner 2002-5-4 20 -93 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  UC2029950  Pulicaria paludosa Steve Boyd, R. E. Riefner 2000-9-13 10307 Orange SANTA ANA MOUNTAINS: Fremont Canyon, about 1.5 air miles west of Oat [a.k.a. Oak] Flat and 1.5 air miles southeast of Claymont clay mine. Comment
  UCR116013  Pulicaria paludosa George K. Helmkamp, E. A. Helmkamp 2000-10-18 6230 Orange Newport Bay, South side of the back bay. 6 Comment
  UCR192974  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-6-17 35463 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge on Hicks Canyon Haul Road, c. midway between Foothill Transportation Corridor and Santiago Cyn. Rd. 335 Comment
  UCR95480  Pulicaria paludosa P. H. Raven 1961-10-15 16847 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing 61 Comment
  UCSB71041  Pulicaria paludosa Ferren, Wayne 1991-11-29 Orange San Joaquin Marsh. North of Sand Diego Creek & east of MacArthur Blvd. Comment
  UCR84428  Pycnanthemum californicum Steve Boyd, T. S. Ross 1994-9-14 8351 Orange Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Lucas Canyon. 311 Comment
  UCSB52415  Quercus X acutidens Roberts, Fred 1981-11-15 Orange Santa Ana Mtns.: San Juan Canyon, Rte. 74, 0.5km by road SW Lower San Juan Picnic Ground, 425 Comment
  POM256729  Quercus X grandidentata W. Pequegnat 1940-6-18 s.n. Orange About 1 mile NW Sierra Peak. Santa Ana Mts. 762 Comment
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Aug 2 2020
  IRVC1322  Quercus agrifolia A. S. Boughey 1965-3-9 4 Orange San Joaquin Hills. Southern Coastal Comment
  RSA735196  Quercus agrifolia Keith E. Hoffmaster 1927-4-8 408 Orange Santa Ana Mountains. Comment
  UCR44899  Quercus agrifolia B. G. Pitzer, L. F. LaPre 1986-10-20 0305 Orange Santa Ana Mtns, Summit of Hicks Canyon on a private road (continuation of Jeffrey Road), c. 2.4 mi. above the gun club 274 Comment
  SEINET13953030 Image available Quercus agrifolia Kay Raeder 1955-1 499 Orange Flying Cow ranch, San Jose Hills, Pacific Coast, 850 feet altitude 259 Comment
  UCSC009093  Quercus agrifolia var. agrifolia Al Keuter 2015-3-25 10- 17 -3 Orange SR 133 near Laguna Beach 46 Comment
  RSA0042530  Quercus berberidifolia Fred M. Roberts 2013-5-30 7779 Orange Lomas de Santiago: Santiago Creek wash, at Santiago Canyon Road bridge (south side), 0.3km W jct. Silverado and Santiago Canyon Roads. 299 Comment
  RSA172202  Quercus berberidifolia Robert F. Thorne 1963-7-26 32840 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Cleveland National Forest 854 Comment
  RSA7637  Quercus berberidifolia Carl B. Wolf 1933-11-3 5539 Orange Along main Divide Motorway on west slope of modjeska Peak. 1372 Comment
  UCR119801  Quercus berberidifolia R. E. Riefner Jr. 2000-8-8 20- 721 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  UCR231345  Quercus berberidifolia A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39935 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1152 Comment
  UCR241911  Quercus berberidifolia Fred M. Roberts 2012-5-10 7561 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  UCR242703  Quercus berberidifolia Fred M. Roberts 2012-5-10 7583 Orange SAN JOAQUIN HILLS: Buck Gully, south fork, north slope of Pelican Hill, along Pelican Hills Dr., 0.3 km N summit Pelican Hill. 189 Comment
  UCSB58638  Quercus berberidifolia Muller, Cornelius 1953-5-2 Orange Swain Canyon, lower end, Santa Catalina Island Comment
  RSA477084  Quercus berberidifolia George C. Johnston 1902-9-1 s.n. Orange Campus Johnston Ranch. Comment
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Oct 19 2015
  RSA679221  Quercus chrysolepis Fred M. Roberts 2003-6-25 5945 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  UCD63655  Quercus dumosa Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Pacific Island Drive. 70 Comment
  UCSB52416  Quercus dumosa Roberts, Fred 1982-6-30 Orange Laguna Niguel; Niguel Hill, above Pacific Island Dr., 1.9 km. SE Aliso Peak; 1.1 km. E Bench Mark 133 223 Comment
  SEINET12031055  Quercus dumosa S. A. Thompson, Rawlins, J. E. 1988-1 5259 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  IRVC23279  Quercus engelmannii Karlin G. Marsh 1987-4-20 s.n. Orange Casper's Regional Park; Lucas Canyon near park boundary; canyon bottom. Southern Coastal Comment
  RSA688975  Quercus engelmannii Fred M. Roberts, D. E. Bramlet 2003-4-10 5645 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  CAS-BOT-BC105117  Quercus kelloggii J. K. Munhall; S. E. Gooden 1945-11-8 11511 Orange head of Horsethief Canyon 1143 Comment
  IRVC19904  Quercus lobata Gordon A. Marsh, Karlin G. Marsh 1983-7-15 s.n. Orange San Joaquin Hills, Upper Shady Canyon. Southern Coastal Comment
  RSA477309  Quercus lobata M. R. Everett 1941-07 20279 Orange Santa Ana Canyon Comment
  UC1135890  Quercus wislizeni A. Lewis Mar 1934 363 Orange Head of Silverado Canyon Cleveland National Forest, Corona Quad. 1112 Comment
  IRVC16134  Quercus wislizeni var. frutescens R. Meinzer, T. Mulroy 1971-4-25 s.n. Orange Santa Ana Mountains: Upper Trabuco Canyon. Peninsular Ranges Comment
  RSA724035  Ranunculus arvensis R. E. Riefner 2000-4-2 0 -166 Orange Santiago Equestrian Center, Santiago Canyon Rd., N 0.5 m from Ridgeline Rd., Oso Creek drainage. 392 Comment
  RSA724036  Ranunculus arvensis R. E. Riefner 2000-5-2 0 -412 Orange Vicinity of Trabuco Canyon Rd. and Rose Canyon Rd. along Trabuco Creek. 312 Comment
  RSA734149  Ranunculus californicus Minor Warne 1934-03 s.n. Orange Laguna Canyon Forks Comment
  RSA678729  Ranunculus californicus var. californicus Fred M. Roberts, Laura Cohen 2000-3-24 5268 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  IRVC1143  Raphanus sativus M. Cadnum 1965-4-1 Orange Knowell Pl. Costa Mesa Comment
  IRVC1149  Raphanus sativus C. Duncan 1965-4-4 Orange Newport Beach Comment
  CDA25895  Rhamnus alaternus Mark A. Elvin, D. G. Kelch 2006-12-9 5300 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  IRVC29872  Rhamnus alaternus Mark A. Elvin, D. Kelch 2006-12-9 5300 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA698606  Rhamnus californica Unspecified s.n. Orange Arch Beach. Comment
  LA207808  Rhamnus crocea subsp. ilicifolia W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  OBI5938  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1845 Orange W slope Santa Ana mts, Trabuco cyn, 1/2 mi above Trabuco oaks 457 Comment
  RSA684301  Rhamnus ilicifolia Fred M. Roberts 2003-3-19 5607 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
  RSA791876  Rhamnus ilicifolia Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49614 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station Comment
  RSA644972  Rhamnus tomentella subsp. cuspidata R. E. Riefner 2000-4-13 20 -360 Orange NCCP North Ranch Policy Plan Area. Upper drainage of Fremont Canyon near National Forest boundary, S. of Claymore Mine. USGS 7.5' Quad: Black Star Canyon. 610 Comment
  UCSB52431  Rhus aromatica Allen, R.; Roberts, Fred 1982-7-4 Orange Chino Hills; Carbon Canyon, Carbon Canyon Rd., 0.6 km. by road SW county line; 2.3 km. NNW Gilman Peak 250 Comment
  IRVC27932  Rhus glauca A. C. Sanders, Mark A. Elvin 2003-10-12 27327 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  CAS-BOT-BC167874  Rhus integrifolia Ira L. Wiggins 1966-2-25 20474 Orange Firestone Boy Scout Reservation in hills E. of Brea Comment
  CAS-BOT-BC167879  Rhus integrifolia John Thomas Howell 1927-7-29 2871 Orange Hills on n. side of Santa Ana [Canon] Canyon 243 Comment
  RSA0073655  Rhus integrifolia Fred M. Roberts 2010-3-12 7184 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
  RSA0125890  Rhus integrifolia Fred M. Roberts Jr. 2012-4-24 7512 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
  RSA17492  Rhus integrifolia Ramon Valverde 1936-8-31 8237 Orange Rancho Santa Ana Botanic Garden.Wild plants in Pine Canyon. Comment
  RSA450  Rhus integrifolia J. T. Howell 1928-2-26 854 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SEINET10692867  Rhus integrifolia Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 8 Orange Cleveland National Forest, 3 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. 950 Comment
  UCR159782  Rhus integrifolia Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; along marsh road 5 Comment
  UCR16589  Rhus integrifolia David M. Peterson 1966-3-9 660309- 7 Orange 3 mi east of San Juan Capistrano on the road to Elsinore 306 Comment
  UCR193787  Rhus integrifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35693 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  HSC3149  Rhus ovata S. M. Clapp 1966-4-10 30 Orange 4 mi. into Black Star Canyon 183 Comment
  SD253897  Rhus ovata Jim Riley 2013-12-10 132 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  UCR76183  Rhus ovata B. G. Pitzer, S. Hemstreet 1992-5-27 1960 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
  RSA679096  Ribes amarum Fred M. Roberts 2003-6-25 5951 Orange Santa Ana Mountains: Mojeska Peak in Upper Cold Springs Cyn., north of Main divide Truck Trail, 0.4 km ESE summit. 1471 Comment
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Jan 3 2007
  CAS-BOT-BC93072  Ribes californicum var. hesperium Carl B. Wolf 1930-1-30 1824 Orange Claymine Canyon, Santa Ana Mountains. 457 Comment
  CAS-BOT-BC93073  Ribes californicum var. hesperium Carl B. Wolf 1930-1-30 1824 Orange Claymine Canyon, Santa Ana Mountains. 457 Comment
  RSA787499  Ribes californicum var. hesperium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49707 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UCR113461  Ribes californicum var. hesperium R. E. Riefner Jr. 2000-8-8 20- 720 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  UCR250134  Ribes californicum var. hesperium Dick Newell, Judy Booth 2013-12-25 345 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest, 1.5 miles NE of Maple Springs gate 722 Comment
  UCR79243  Ribes californicum var. hesperium Steve Boyd, T. S. Ross 1992-5-20 7460 Orange Southern Santa Ana Mtns, San Mateo Canyon Wilderness Area: Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail, upstream 0.25 mi to spur trail leading to old mining habitations in side canyon. 412 Comment
  RSA0023263  Ribes californicum var. hesperium Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49779 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA0027776  Ribes californicum var. hesperium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49693 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  LA205443  Ribes indecorum W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mountains, Holy Jim Canyon 1158 Comment
  RSA162689  Ribes indecorum J. D. Olmsted 1960-1-9 1093 Orange Hidden Ranch at Old Indian Campground, Santa Ana Mts. Black Star Creek. 640 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
  UC1127273  Ribes malvaceum R. St. John 1931-2-13 191 Orange 1 mi w Plot 100 Elsinore Trabuco Canyon; Elsinore Quadrangle 1066 Comment
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Nov 27 2011
  RSA441492  Ribes malvaceum var. viridifolium Lester H. Cushman 1932-3-5 15733 Orange Trabuco Canyon. Comment
  UCD169741  Ribes malvaceum var. viridifolium R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  LA205494  Ribes roezlii W. E. Pequegnat; 1937-8-11 sn Orange Santa Ana Mountains, Santiago Peak Comment
  RSA0016149  Ribes roezlii Keith E. Hoffmaster 1932-4-17 519 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  RSA0054906  Ribes sanguineum var. glutinosum G. Jentges 1932-3-5 21 Orange In wild plot east of Science Bldg. [Most likely Santa Ana Jr. College]. Comment
  LA205521  Ribes speciosum C. B. Wolf; 1931-3-6 1863 Orange 1 mi. N of mouth of Harding Canyon, W. slope of Santa Ana Mts Comment
  RSA732252  Ribes speciosum A. C. Sanders, Fred M. Roberts 2008-4-22 35038 Orange Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 366 Comment
  SDSU5982  Ribes speciosum R. M Beauchamp 1968-2-17 766 Orange On south slope above parking area in aliso Canyon, Laguna Beach. Comment
  UCR3197  Ribes speciosum Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  IRVC1315  Ricinus communis D. Van Gorden 1965-5-3 Orange 2008 Meyer Place. Costa Mesa Comment
  JEPS53978  Ricinus communis S. B. and W. F. Parish October, 1882 1599 Orange near Anaheim Comment
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Jul 18 2010
  UCD170896  Ricinus communis T. B. Salvato; Katie Kurtz 2006-10-15 1918 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue. 6 Comment
  RSA314  Romneya coulteri J. T. Howell 1924-7-24 472 Orange Claymine Canyon near Sierra Peak. 168 Comment
  RSA658201  Romneya coulteri T. A. Daubert 1991-5-19 656 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island. Comment
  SDSU892  Romneya coulteri D. F. Howe 1976-6-4 4904 Orange Trabuca Canyon, Santa Ana Mtns. 305 Comment
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Sep 5 2013
  UC1018189  Romneya coulteri J. Warren 1952-5-23 Orange Santa Ana Canon 457 Comment
  UC117965  Romneya coulteri Mollie Bryan 1901-1 Orange Orange Comment
  CAS-BOT-BC147386  Rosa californica I. M. Johnston 1918-9-3 2140 Orange Laguna [Canon] Canyon, San Joaquin Hills 76 Comment
  POM201869  Rosa californica L. M. Booth 1932-6-7 1161 Orange Newport Lagoon. Comment
  POM7014  Rosa californica Philip A. Munz, L. T. Street, G. Williams 1919-5-4 2683 Orange Laguna Canyon. Comment
  UC1128581  Rosa californica J. B. Spring 1931-3-6 23 Orange Baker Canyon Corona Quadrangle Comment
  POM2667  Rubus ursinus Philip A. Munz 1918-5-4 2219 Orange Laguna Beach. Comment
  UCR193809  Rubus ursinus A. C. Sanders, Fred M. Roberts 2008-7-16 35833 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, canyon c. 0.12 mi. below Dripping Spring, c. 7.5 mi. ESE of Tustin 360 Comment
  RSA39335  Rumex acetosella E. L. Paddock 1943-5-26 12741 Orange Near Santa Fe Railway 1/8 mile east of Northam Station. Buena Park. Comment
  UCR173937  Rumex conglomeratus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33006 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR258356  Rumex crispus Fred M. Roberts 2014-4-21 7858 Orange South Coast, SAN JOAQUIN HILLS: Upper Laguna Canyon, Laguna Lake 1 (Upper Laguna Lake), north basin, c. 5.1 km ENE summit Signal Hill. Laguna Coast Wilderness Park 113 Comment
  CAS-BOT-BC421599  Rumex crispus C. L. Hitchcock; C. V. Muhlick 1964-3-17 23072 Orange 8 miles e. of Yorba Linda, Santa Ana Canyon Comment
  RSA466284B  Rumex crispus M. B. Dunkle 1933-4-9 3289 Orange Dana Point. Comment
  POM2358  Rumex maritimus I. M. Johnston 1918-5-4 526 Orange San Joaquin Hills, Lakes in Laguna canon. 152 Comment
  CAS-BOT-BC434975  Rumex obtusifolius A. C. Sanders; Fred M. Roberts 2008-7-7 36004 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir. 226 Comment
  UCR250322  Rumex obtusifolius A. C. Sanders, Fred M. Roberts 2008-8-7 36004 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  POM17440  Rumex salicifolius P. A. Munz 1923-4-1 6597 Orange Laguna Lakes 61 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
  RSA203  Rumex salicifolius J. T. Howell 1927-7-15 269 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  RSA685938  Rumex salicifolius Fred M. Roberts 2003-3-27 5629 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  RSA0014448  Ruta chalepensis Justin M. Wood 2010-3-4 1422 Orange Santa Ana Canyon: Chino Hills State Park property just west of Green River Golf Course on buff south of the river. 131 Comment
  SD80924  Salicornia bigelovii James Henrickson 1970-9-5 5314 Orange 3.5 miles northwest of Huntington Beach, 0.25 mile southeast of Warner Avenue. Comment
  UCSB59704  Salicornia pacifica Tilforth, C. 1975-9-6 Orange Northeast shoreline of Upper Bay, Newport Beach Comment
  UCSB13412  Salicornia pacifica Whittington, M. 1962-4-20 Orange South side of back Newport Bay about one mile south of saltworks, Newport Comment
  JEPS73722  Salicornia virginica L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2043 Orange n of Newport Beach (across U.S. Highway 101 from Huntington State Beach); Bolsas Marsh Comment
  UC1543078  Salicornia virginica Donald G. Nelson 1936-7-26 439 Orange near Coast Highway (base of cliff); Newport Bay Comment
  UC7477  Salicornia virginica O. B. Byram 1901-9-10 2 Orange Westminster Comment
  UCR66996  Salicornia virginica A. C. Sanders 1990-10-6 10205 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  OBI5926  Salix exigua Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  RSA357008  Salix exigua Robert F. Thorne 1975-4-6 45572 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  SBBG29066  Salix exigua var. hindsiana C. B. Wolf 1932-7-7 3845 Orange Bixby Ave, 1 km W of Hansen Rd, near town of Los Alamitos 8 Comment
  CAS-BOT-BC108139  Salix gooddingii John Thomas Howell 1927-6-6 2439 Orange Santa Ana River bottom, Santa Ana Canyon [Canon] 152 Comment
  CAS-BOT-BC108140  Salix gooddingii H. D. Geis 1902-5-1 s.n. Orange Near Santa Ana Comment
  RSA4250  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon, at southeast corner of pear orchard. 120 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
  RSA5308  Salix gooddingii B. D. Stark 1933-1-7 4509 Orange Rancho Santa Ana, river bottom below ranch houses. 122 Comment
  UCR193026  Salix gooddingii A. C. Sanders, Fred M. Roberts 2008-6-17 35515 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 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
  RSA0034669  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-3-16 2715 Orange Rancho Santa Ana, Santa Ana River bottom. 121 Comment
  RSA725508  Salix laevigata Fred M. Roberts 2007-9-11 6566 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
  RSA735353  Salix laevigata R. H. McArthur 1934-3-1 s.n. Orange Santa Ana River at 1st Street. Comment
  UC492485  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange near Santa Ana River, at s.e corner of pear orchard Rancho Santa Ana; Santa Ana Canyon, Rancho Santa Ana 120 Comment
  UC537282  Salix laevigata Philip A. Munz and L. M. Booth 1932-12-16 1380 Orange 1/2 mi from ocean Santa Ana R. (w of Wolfe's Ranch) Comment
  UCR193034  Salix laevigata A. C. Sanders, Mitch Provance 2008-5-20 35425 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA0070788  Salix laevigata CNPS Accuracy Assessment Team 2014-4-28 1134 Orange Black Star Canyon. Comment
  POM122788  Salix lasiolepis Marcus E. Jones 1926-2-20 s.n. Orange East of Laguna. Comment
  RSA184140  Salix lasiolepis I. L. Wiggins 1966-2-4 20417 Orange Watercourse near mouth of Trabuco Canyon.Waterfront St. near Mission Rock Terminal, San Francisco Comment
  UC498103  Salix lasiolepis L. M. Booth 1932-12-1 1384 Orange Santa Ana River; near mouth, about 3/4 mi from ocean Comment
  NY284114  Salix nigra var. vallicola L. Abrams 1903-4-16 3256 Orange Santa Ana River, near Orange Comment
  CAS-BOT-BC403758  Salpichroa origanifolia E. L. Paddock 1943-5-28 12744 Orange Little Tia Juana Campsite, sunny hills Ranch, Fullerton Comment
  RSA39330  Salpichroa origanifolia E. L. Paddock 1943-5-19 12747 Orange 1 mile east of Brea. Comment
  UCR192081  Salsola australis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35282 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR239631  Salsola australis Fred M. Roberts 2012-4-24 7513 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  RSA411335  Salvia apiana F. R. Fosberg 1931-6-21 S 5092 Orange Lower Santiago Canyon. Comment
  IRVC26432  Salvia californica Mark A. Elvin 2004-2-22 3152 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC26710  Salvia clevelandii Mark A. Elvin 2004-4-4 3235 Orange UCI Arboretum Southern Coastal 15 Comment
  HSC14342  Salvia columbariae J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  RSA0127603  Salvia columbariae Fred M. Roberts 2016-3-25 8033 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
  RSA662  Salvia columbariae J. T. Howell 1928-3-18 891 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  RSA697878  Salvia columbariae Dorothy Sammis s.n. Orange Orange County park. Comment
  RSA733974  Salvia columbariae Keith E. Hoffmaster 1927-4-8 423 Orange Santa Ana Mountains. Comment
  UCR193817  Salvia columbariae A. C. Sanders, Fred M. Roberts 2008-7-16 35876 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UCR215306  Salvia columbariae Fred M. Roberts, Eliza L. Maher 2008-3-26 6795 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of Marine Institute, Dana Point Harbor 60 Comment
  RSA659990  Salvia columbariae Steve Teh 1994-4-28 11 Orange Modjeska Grade rd. 3/4 mile back on fire rd. Comment
  RSA658203  Salvia leucophylla T. A. Daubert 1991-5-19 655 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
Read comments
Dec 1 2016
  CAS-BOT-BC233669  Salvia leucophylla C. B. Wolf 1943-6-8 11449 Orange Rancho Santa Ana Botanic Garden 198 Comment
  CAS-BOT-BC229977  Salvia mellifera Agnes M. Bowman 1899-6-1 s.n. Orange Orange Comment
  CAS-BOT-BC229981  Salvia mellifera A. M. White 1974-6-1 1384 Orange Ca 20 mi. E. of Santa Ana N. of Silverado Canyon Comment
  RSA0126622  Salvia mellifera Fred M. Roberts 2012-4-24 7502 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
  RSA294797  Salvia mellifera Lyman Benson 1946-5-13 12098 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
  RSA434143  Salvia mellifera F. R. Fosberg 1931-6-21 S- 5141 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA550593  Salvia mellifera Fred M. Roberts 1989-4-26 4321 Orange Santa Ana Mtns.: Lower Blind Canyon near mouth, 9.2km SW Sierra Peak, 1.0km N Irvine Lake spillway. 213 Comment
  RSA590946  Salvia mellifera Fred M. Roberts 1991-5-2 4779 Orange San Joaquin Hills: Laguna Canyon, Laguna Laurel, just west of Laguna Canyon Road, c. 2 km N junction El Toro Road, 4.5 kilometers E Signal Peak. 110 Comment
  RSA683071  Salvia mellifera Fred M. Roberts 2003-3-13 5593 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1,320m NW Sycamore Gate and 880m W Cristianitos Rd. 179 Comment
  RSA731981  Salvia mellifera A. C. Sanders 2008-4-8 34779 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  RSA733967  Salvia mellifera Keith E. Hoffmaster 1927-4-8 424 Orange Santa Ana Mountains. Comment
  RSA798093  Salvia mellifera Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49594 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR209372  Salvia mellifera Fred M. Roberts, Linda Farley 2008-3-28 6818 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
  UCR99553  Salvia mellifera B. G. Pitzer 1996-4-30 2798 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA0034529  Salvia mellifera Paul Shirokawa 1998-4-24 7 Orange Cleveland National Forest - Trabuco Ranger District, 2.9 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 975 Comment
  POM4055  Salvia spathacea I. M. Johnston 1918-5-4 951 Orange Hills back of Laguna Beach. 30 Comment
  POM4123  Salvia spathacea Lois Clency 1914-07 s.n. Orange Laguna. Comment
  JEPS12740  Sambucus mexicana L. M. Booth 1932-5-27 1127 Orange Newport Bay Comment
  RSA3156  Sambucus mexicana C. B. Wolf 1931-7-25 2293 Orange Above irrigation canal, just north of Mexican houses. Rancho Santa Ana. 122 Comment
  RSA734894  Sambucus mexicana A. C. Sanders 2008-5-28 35431 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UC527395  Sambucus mexicana C. B. Wolf 1931-7-25 2293 Orange above irrigation canal (just n of Mexican houses); Rancho Santa Ana, Santa Ana Canyon 121 Comment
  UCR175222  Sambucus mexicana Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; along marsh road 5 Comment
  UCD137210  Sambucus nigra subsp. caerulea Ronni Stachelek; Bob Anderson, Frances Schropshire 1995-3-1 41 Orange Newport Beach, West side Upper Newport Bay adjacent to Santa Ana Delhi Channel, ca. 100 m west of footbridge. Comment
  UCSB69268  Sambucus nigra subsp. caerulea Sanders, A.; Roberts, Fred 2008-7-3 Orange Peninsular Range; Santa Ana Mtns. Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir (Black Star Canyon 7.5 ' Q.) 285 Comment
  RSA471418  Sanicula arguta M. B. Dunkle 1933-4-9 3285 Orange Dana Point Comment
  RSA761933  Sanicula arguta Robt. Allen 2005-4-30 12506 Orange Caspers Wilderness Park, East Ridge Trail. 175 Comment
  UCR222641  Sanicula bipinnatifida D. E. Bramlet 2008-4-28 4247 Orange Peninsular Range; Santa Ana Mtns. Foothills, east fork of upper Weir Canyon, north side of access road, 1.22 km east of the main canyon and 122 m west of the upper boundary of Gypsum Canyon 406 Comment
  SBBG40420  Sanicula crassicaulis J. Ingram 1960-3-29 264 Orange 2 mi above O'Neill Park, Trabuco Cyn Comment
  SEINET13945251 Image available Sanicula tuberosa Kay Raeder 1955-1 494 Orange Just above Flying Cow Ranch, San Jose Hills, Alt 1500 ft. 457 Comment
  SDSU7979  Satureja chandleri D. F Howe 1947-4-29 1555 Orange San Juan Creek, Santa Ana Mts., Orange Co. Comment
  POM13825  Saxifraga californica P. A. Munz 1922-4-28 5044 Orange Leach Canyon, Santa Ana Mountains 670 Comment
  UCR56327  Scandix pecten-veneris Kathy Harper 1989-4-8 s.n. Orange Ronald W. Caspers Wilderness Area, along Bell Canyon Trail. 153 Comment
  SD253898  Schinus molle Jim Riley 2013-12-10 137 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  SD175788  Schinus terebinthifolius D. G. Kelch 2006-12-9 06 572 Orange Irvine. University Drive along tidal Creek just east of I-73. 9 Comment
  UCR66991  Schinus terebinthifolius A. C. Sanders 1990-10-6 10201 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  IRVC1823  Schismus barbatus I. L. Wiggins 1966-2-18 20 448 Orange Rancho Santa Ana: roadside 1/2 mile W of entrance to Rancho Santa Ana near the end of Orange County road at the end of Orangethorpe Avenue. Santa Ana Mountains Comment
  RSA0070787  Schoenoplectus acutus CNPS Accuracy Assessment Team 2014-4-30 9268 Orange Peters Canyon Regional Park. Comment
  RSA793257  Schoenoplectus americanus Robert F. Thorne 1984-1 s.n. Orange Newport Back Bay Comment
  UCR85726  Schoenoplectus californicus Scott D. White 1993-4-28 1290 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  RSA639848  Schoenoplectus maritimus Sandy Leatherman 1998-9-3 48 Orange Dana Point: Monarch Beach, northeast fo the intersection of State Highway 1 and Crown Valley Parkway, and west of Salt Creek. 30 Comment
  POM1397  Schoenoplectus maritimus D. L. Crawford 1916-7-26 737 Orange Aliso Canyon Comment
  UC840666  Scirpus californicus P. A. Munz 1922-9-2 6351 Orange Laguna Canyon 45 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
  UCR174222  Scirpus microcarpus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33022 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
  UCSB47993  Scirpus microcarpus Roberts, Fred 1980-6-25 Orange Santa Ana Mtns.; San Juan Canyon below Calif. Rte. 74; 2.4 km. ENE San Juan Guard Station; 0.3 km. WSW BM 1100 290 Comment
  RSA647958  Scrophularia californica Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 25 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  RSA749356  Scrophularia californica subsp. floribunda Fred M. Roberts 2008-4-22 6919 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn.,along Haul Rd. near asphalt plant, 2.2 km ENE Rattlesnake Reservoir dam and 2.2 km WNW Bee Peak, Irvine Ranch Conservancy. 188 Comment
  SEINET12347787  Scrophulariaceae S. A. Thompson, Rawlins, J. E. 1988-8-27 5262 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  RSA16  Selaginella bigelovii John Thomas Howell 1927-7-28 506 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  RSA518450  Selaginella bigelovii C. W. Tilforth, Dorothy Tilforth 1977-3-6 1254 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  UC1543091  Selaginella bigelovii Donald G. Nelson 1935-4-6 238 Orange e San Juan Capistrano (just s of boundary of Cleveland Nat'l Forest, side canyon with stream, branching n from summer ranger station on main hwy. up San Juan Canyon); Santa Ana Mts., San Juan Canyon Comment
  IRVC25398  Selaginella cinerascens Fred M. Roberts 1987-4-3 3339 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
Read comments
Oct 17 2017
  UCR142523  Senecio californicus D. E. Bramlet 2000-4-7 2948 Orange Peninsular Ranges: Santa Ana Mts. region, Upper Blind Canyon beside the SCE maintenance road and 762m west of the mainstem of Blind Canyon; 1.7 km east of Weir Canyon 108 Comment
  SD231235  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Coastal plain: Irvine. UC Irvine Campus. Directly west of T-intersection of Shady Canyon Cr. w/Bonita Canyon Dr. (=Culver Dr.) 70 Comment
  CAS-BOT-BC364599  Senecio vulgaris Carl B. Wolf 1932-6-28 3766 Orange Bryant Ranch, along Western half of North boundary of 40 acre Valencia Orange Grove; Bryant Ave. & Hansen Rd. Comment
  RSA936  Senecio vulgaris J. T. Howell 1928-2-7 829 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  RSA630331  Senna didymobotrya O. F. Clarke 1994-6-17 s.n. Orange Laguna canyon Comment
  UCR266420  Senna didymobotrya D. E. Bramlet 2009-11-13 4415 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  RSA443821  Sesuvium verrucosum Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel, just N of Warner St. bridge crossing, (No. C05) Comment
  SEINET238939 Image available Sesuvium verrucosum A. C. Sanders, D. Malueg; K. D. Jones 2000-1 23334 Orange Pacific Coast: Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 0 Comment
  CAS-BOT-BC438200  Sesuvium verrucosum Carl B. Wolf 1932-7-7 3847 Orange Bryant Ranch, Bixby Ave., field 100 ft. N. of Rd. 7/10 mi. W. of Hansen Rd; 100 ft. N. & 2/10 mi. W. of S.E. corner of N.E.40 of N.W.160 of Sect. 34. T4S R11W. 7 Comment
  RSA723478  Setaria megaphylla R. E. Riefner 2006-11-19 6 -683 Orange City of San Juan Capistrano, San Juan Creek at La Novia Ave. 22 Comment
  SEINET5866751 Image available Setaria megaphylla R. E. Riefner Jr. 2005-1 05 -731 Orange City of Huntington Beach, Huntington Central Park near Goldenwest St. USGS Quad: Seal Beach 1 Comment
  CAS-BOT-BC243589  Setaria parviflora I. L. Wiggins; J. H. Thomas 1962-6-27 309 Orange Near intersection of 18th and Main Streets, Santa Ana Comment
  RSA159413  Setaria parviflora I. L. Wiggins, John H. Thomas 1962-6-27 309 Orange Orange County, weeds near intersection of 18th and Main Streets, Santa Ana Comment
  CAS-BOT-BC243633  Setaria pumila J. B. Anderson 1966-5-2 621 Orange Along Newport Freeway at 17th Street, Santa Ana Comment
  IRVC1829  Setaria sphacelata I. L. Wiggins 1965-9-26 20266 Orange California State College at Fullerton: orange grove just S of Letters and Science Building. Southern Coastal Comment
  RSA226767  Setaria verticillata I. L. Wiggins 1965-11-7 20361 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  UCR76075  Sidalcea malviflora B. G. Pitzer, Stu Hemstreet 1992-5-27 1950 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
  SEINET3132581  Sidalcea neomexicana subsp. thurberi L. Abrams 1903-4-17 3257 Orange Low Ground Between Tustin & Myford Comment
  CAS-BOT-BC434368  Sidotheca trilobata P. C. Everett 1935-6-19 7224 Orange Santa Ana Mts., main divide motorway 1 5/10 mi. below summit of Santiago Peak, E. slope 1310 Comment
  RSA749489  Silene antirrhina Fred M. Roberts, Linda Farley 2008-3-28 6823 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber s Peak, Irvine Land Conservancy. 457 Comment
  CAS-BOT-BC384500  Silene antirrhina Helen D. Geis 1902-3-1 s.n. Orange Santiago Creek Comment
  UCR281559  Silene gallica Mitch Provance, Jeremiah George 2017-3-20 317- 112 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  UCR192083  Silene laciniata A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35296 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 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
  RSA175135  Silene laciniata subsp. major R. F. Thorne 1963-7-26 32842 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Santa Ana Mountains, Cleveland National Forest. 762 Comment
  RSA438887  Silene laciniata subsp. major M. B. Dunkle 1934-6-18 3997 Orange San Juan Canyon 305 Comment
  IRVC25338  Silene laciniata subsp. major Bernard N. Jaroslow 1989-5-29 B23 Orange Santiago Canyon, Morrow Trail out of Live Oak Canyon below truck trail; in patches along trail. Santa Ana Mountains Comment
  SD245326  Silene laciniata subsp. major Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49595 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. 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
  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
  UCR4106  Silybum marianum Ronald M. Cope 1965-4-25 s.n. Orange N side of road between Elsinore and San Juan Capistrano, 5.3 mi NE of San Juan Capistrano Comment
  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
  IRVC19418  Sisymbrium irio R. L. Allen 1983-2-12 A633 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  CAS-BOT-BC75289  Sisymbrium officinale Lawrence M. Booth 1932-1-1 1198 Orange Newport Bay. Comment
  UCR191002  Sisymbrium officinale A. C. Sanders, Fred M. Roberts 2008-4-22 35047 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado 488 Comment
  UCR193519  Sisymbrium orientale A. C. Sanders, Mitch Provance 2008-5-20 35392 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA681017  Sisyrinchium bellum Fred M. Roberts, David E. Bramlet 2003-3-13 5571 Orange Donna ONeill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  UCSB13383  Sisyrinchium bellum Whittington, M. 1962-4-20 Orange Modjeska grade road; between Modjeska and Trabuco Canyon Comment
  SEINET4171050  Sisyrinchium bellum J. R. Glen 1957-5-3 Orange 1/2 mile from the San Bernardino county line, about 3 miles east of Olinda on the Carbon Canyon road Comment
  UCR182904  Solanum americanum Pat Akers 2006-3-25 PA7 06 Orange Yorba Linda. Santa Ana River on a large (300-400 ft) sandy/cobbly flat. south of La Palma Dr, 0.6-0.9 mi. east of Yorba Linda Dr 122 Comment
  UCR240197  Solanum americanum C. J. Minar 1994-4-16 02 Orange South Coast, Santa Ana, on the bank of Santiago Creek, 0.25 mi. east of Santiago St. and 0.25 mi. west of Amtrack RR bridge, east of I-5 Fwy & south of Garden Grove (22) Fwy 50 Comment
  RSA699756  Solanum douglasii Fred M. Roberts, David E. Bramlet 2003-6-6 5888 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.7km SW int. Cristianitos and TRW Rds. and 0.23km W of SDGandE substation. 94 Comment
  UCR194994  Solanum douglasii A. C. Sanders, Fred M. Roberts 2008-8-7 36003 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  HSC21302  Solanum douglasii D. W. Snell 1964-3-27 27 Orange 1 mi. S of Brea Reservoir on Reservoir Rd. 120 Comment
  RSA12658  Solanum elaeagnifolium Carl B. Wolf 1934-7-13 6038 Orange Santa Fe. R.R. embankment, 0.5 mi. west of ATwood. 91 Comment
  RSA799943  Solanum rostratum Justin M. Wood 2011-6-28 4308 Orange South Coast: City of Costa Mesa; Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  POM212279  Solanum umbelliferum Carl B. Wolf 1931-3-6 1850 Orange 0.5 mi. below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 610 Comment
  POM212351  Solanum umbelliferum Carl B. Wolf 1931-3-6 1862 Orange North of base of Trabuco Modjeska Grade, west slope of Santa Ana Mts. 305 Comment
  RSA2067  Solanum umbelliferum Carl B. Wolf 1931-3-6 1862 Orange North of base of Trabuco Modjeska Grade, west slope of Santa Ana Mts. 305 Comment
  RSA5287  Solanum umbelliferum Carl B. Wolf 1932-12-19 4444 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  UCR191429  Solanum umbelliferum A. C. Sanders, Fred M. Roberts 2008-4-8 34780 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  UCR230236  Solanum umbelliferum Dick Newell, Don Millar 2011-3-15 089 Orange Peninsular Range; Santa Ana Mtns., MWD Road, east of Outdoor Education Center, 1.8 miles NW (312 deg. ) of Irvine Lake dam 239 Comment
  RSA787502  Solanum xanti Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49696 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  UCD127061  Solanum xanti Steve Mason; Pam Rector 1993-4-16 8 Orange Laguna Niguel, Sea View Park Trail. Approximately 150 yards from trailhead on left side. 182 Comment
  UCR166729  Solanum xanti Scott D. White, Jennifer H. Jones 2005-3-31 10856 Orange South Coast, City of Laguna Beach. 549 Nyes Place. Proposed home site on c. 0.5 acre. 91 Comment
  UCR241050  Soleirolia soleirolii Robert DeRuff 2012-9-27 554 B Orange South Coast, Upper Newport Bay, adjacent to Back Bay Dr. just past Newporter Canyon 3 Comment
  IRVC21389  Solidago californica A. S. Boughey 1968-7-9 409 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  POM50555  Solidago californica L. R. Abrams 1901-6-16 1851 Orange Trabuco Canyon Comment
  RSA0055824  Solidago californica Doris Bowers 1970-10-26 1709 Orange Black Star Can. Indian site 610 Comment
  RSA943  Solidago confinis J. T. Howell 1927-10-29 s.n. Orange Bryant Ranch near Long Beach. 15 Comment
  SD239624  Solidago velutina subsp. californica A. C. Sanders, T. B. Salvato, Kent Beauman 2011-11-3 39940 Orange Peninsular Range; Santa Ana Mountains: near Pleasants Peak along the Main Divide Truck Trail (Corona South 7.5'Q) 1143 Comment
  CAS-BOT-BC374661  Sonchus oleraceus Ira L. Wiggins 1965-10-25 20297 Orange Curbway on Dorothy Lane near Lincoln Avenue, Fullerton Comment
  IRVC19392  Sonchus oleraceus R. L. Allen 1983-2-12 A629 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  RSA653178  Sonchus oleraceus David Barrios 1991-5-8 29 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA732175  Sonchus oleraceus A. C. Sanders, Fred M. Roberts 2008-3-25 34545 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC15381  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  HSC24440  Spartina foliosa Christopher Davidson 1970-7-27 1505 Orange Bolsa Chica salt marsh, 1 mi. S of Warner Ave., opposite Seal Beach Comment
  RSA483174  Spartina foliosa Anonymous 1914-7-6 31 Orange Growing in salt marsh at Newport Comment
  HSC15089  Spartium junceum S. M. Clapp 1966-4-3 4 Orange Union Oil Prop., just S of Imperial Hwy. and E of Associated Rd. 61 Comment
  IRVC2453  Spartium junceum L. Aldis 1965-3-27 s.n. Orange Black Star Canyon and Silverado Canyon Rds. Santa Ana Mountains Comment
  IRVC2459  Spartium junceum John Schram 1965-5-1 s.n. Orange Santa Ana Mtns; Hwy 74, 20 mi. E from San Juan Capistrano. Peninsular Ranges Comment
  SEINET10487736  Spartium junceum David B. Dunn 1971-8-13 Dunn 18128 Orange Cultivated plants vicinity of laguna beach so called scotch broom. Comment
  CLARK-A1528-2474  Spergula arvensis John C. Roos 1937-2-23 1317 Orange Laguna Hills Comment
  IRVC365  Spergula arvensis D. Van Gorden 1965-3-11 Orange 2212 Meyer Place. Costa Mesa Comment
  RSA184104  Spergula arvensis I. L. Wiggins 1966-3-5 20515 Orange 1/2 mile W of El Toro along Hwy 18 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
  RSA0097853  Spergularia bocconi Scott D. White, Brian Leatherman 1997-6-12 5339 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca. 2-4 miles E of I-15/Highway 74 junction. 46 Comment
  SBBG69996  Spergularia macrotheca M. N. Ackley -May-1926 77 Orange Sunset Beach 8 Comment
  RSA0098429  Spergularia macrotheca var. leucantha R. E. Riefner 1996-3-28 96 -28 Orange San Clemente State Beach. Comment
  UCR220089  Spergularia macrotheca var. macrotheca Fred M. Roberts 2008-5-7 6943 Orange Lomas de Santiago, Limestone Ridge between Dripping Spring and Limestone Canyon, 3.5 km NW of Bolero Lookout and 1.7 km east of Bee Peak. Irvine Ranch Conservancy 481 Comment
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Feb 27 2019
  RSA0098515  Spergularia marina P. A. Munz 1923-4-1 6911 Orange Laguna Lakes. 61 Comment
  RSA0098517  Spergularia marina P. A. Munz, L. T. Street, G. Williams 1919-4-4 2682 Orange Laguna Canon. Comment
  RSA0098537  Spergularia marina I. M. Johnston 1924-8-29 s.n. Orange 3 miles north of Balboa. Comment
  RSA0098538  Spergularia marina L. M. Booth 1932-5-12 1010 Orange Newport Beach. Comment
  RSA5910  Spergularia salina C. B. Wolf 1932-7-2 3817 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  UCR102029  Spergularia villosa B. G. Pitzer 1997-3-25 3010 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  CAS-BOT-BC236645  Sphenopholis obtusata Samuel B. Parish 1884-6-10 1640 Orange Banks of Santa Ana River Comment
  RSA23430  Sporobolus airoides C. B. Wolf 1940-6-27 9718 Orange Bryant Ranch, East of Los Alamitos, near corner of Hansen Rd. and Bryant Ave 8 Comment
  RSA754065  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-7-16 35834 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin. 391 Comment
  UCR191450  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-4-8 34752 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UC537164  Stachys ajugoides var. rigida Lawrence M. Booth 1932-5-19 1080 Orange Newport Bay Comment
  RSA780827  Stachys ajugoides var. rigida Sandy Leatherman 2011-5-16 2011 -16 Orange Peninsular Ranges; Chino-Puente Hills region: 50 meters west of Carbon Canyon Road and Lions Canyon Road in Carbon Canyon in the City of Brea. 273 Comment
  POM202024  Stachys bullata L. M. Booth 1932-5-19 1080 Orange Newport Bay. Comment
  UCSB48198  Stachys rigida Roberts, Fred 1981-6-26 Orange Santa Ana mtns; Viejo Cyn., 0.5 km N Calif. Rte 74; 2.7 km E San Juan Guard Station 317 Comment
  POM147494  Stachys rigida subsp. quercetorum F. M. Reed 1928-4-27 5704 Orange Between Laguna and Newport. Comment
  SEINET9330188  Stachys rigida var. quercetorum Unknown 2011-9-27 39913 Orange Orange Co., CA Comment
  UCR247897  Stachys rigida var. rigida Fred M. Roberts 2013-6-12 7797 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  SEINET9355912  Stachys stebbinsii Unknown 2011-9-27 39902 Orange Orange Co., CA Comment
  UC1377828  Stebbinsoseris heterocarpa John Ingram 1960-3-29 261 Orange 3 mi above O'Neill Park (Trabuco Canyon); Trabuco Canyon Comment
  UCR191016  Stellaria media A. C. Sanders, Fred M. Roberts 2008-4-22 35033 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UCR240091  Stephanomeria cichoriacea Dick Newell, Judy Booth 2012-10-14 306 Orange Peninsular Range; Santa Ana Mtns., Trabuco Canyon, 2 miles north of Live Oak Cyn. Rd. 457 Comment
  UCR186593  Stephanomeria diegensis Robert DeRuff 1994-1 462 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, Newporter Canyon 8 Comment
  UCR73133  Stephanomeria diegensis Scott D. White 1992-9-23 850 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
  POM201781  Stephanomeria exigua subsp. coronaria L. M. Booth 1932-7-27 1325 Orange Corona del Mar, Newport Beach, Bluff Ravine Comment
  RSA753082  Stephanomeria exigua subsp. deanei A. C. Sanders, Fred M. Roberts 2008-9-18 36083 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  CAS-BOT-BC375867  Stephanomeria virgata H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  UCR37802  Stipa lepida 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
  RSA0011014  Stylocline gnaphaloides Fred M. Roberts 2012-5-10 7570 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  RSA678496  Stylocline gnaphaloides Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5846 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  RSA682596  Stylocline gnaphaloides Scott D. White, Amanda Duchardt 2003-3-27 8860 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  UCR223962  Stylocline gnaphaloides Fred M. Roberts 2008-4-9 6856 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  UCR263576  Styrax officinalis var. redivivus Ed Kentner 2012-5-17 138 Orange Santa Ana Mountains, Irvine Ranch Conservancy, Fremont Canyon Reserve near Cathedral Rock and Lakeview Road 730 Comment
  UCR26979  Styrax officinalis var. redivivus E. W. Lathrop 1966-4-18 s.n. Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  POM256723  Styrax redivivus W. Pequegnat 1940-6-14 s.n. Orange Yaeger's Meadow. Santa Ana Mountains 915 Comment
  CAS-BOT-BC110387  Suaeda esteroa C. W. Tilforth 1975-9-6 1044 Orange Northeast shoreline of Upper Bay, Newport Beach. Comment
  IRVC29762  Suaeda esteroa Barry S. Nerhus, Mark A. Elvin 2006-11-4 9 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA758778  Suaeda esteroa Anstruther Davidson 1914-10-1 2987 Orange Newport Comment
  SD123924  Suaeda esteroa C. W. Tilforth 1975-9-6 1044 Orange Northeast shoreline of Upper Bay, Newport Beach. Comment
  UCD145368  Suaeda esteroa Louis C. Wheeler 1946-9-28 6385 Orange Newport Bay. Comment
  UCR157702  Suaeda esteroa Adrian Wolf 1998-5-27 337 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
  RSA703389  Suaeda taxifolia R. E. Riefner Jr. 2004-5-6 4 -171 Orange Newport Beach, north side of Pacific Coast Hwy., west of Bayside Drive near Newport Dunes Beach Club. 10 Comment
  RSA758766  Suaeda taxifolia Anstruther Davidson 1907-09 1779 Orange Newport. Comment
  UC1007086  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange on U.S. Highway Alternate 101 one mi s Huntington Beach 1 Comment
  RSA0070790  Suaeda taxifolia CNPS Accuracy Assessment Team 2014-7-8 9567 .2 Orange Upper Newport Bay Nature Reserve. Comment
  RSA542650  Symphoricarpos mollis Fred M. Roberts, R. E. Riefner 1988-7-19 4116 Orange Santa Ana Mountains region: Upper Silverado Canyon, Maple Springs Truck Trail, 2.1Km NNW Modjeska Peak. 1260 Comment
  UCR3182  Symphoricarpos mollis Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  UC537257  Symphyotrichum defoliatum L. M. Booth 1933-9-8 1392 Orange back of, roadside Lomita Gun Club; Anaheim Marsh