Search Results — 2000 specimen records retrieved (1605 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  POM98121  Abronia maritima I. M. Johnston 1924-09 s.n. Orange Balboa Island. Comment
  CAS-BOT-BC229406  Abronia umbellata Marcus E. Jones 1924-8-26 s.n. Orange Newport Comment
  HSC16138  Abronia umbellata B. Francis 1964-5-2 41 Orange Newport Beach Comment
  POM212062  Abronia villosa var. aurita Carl B. Wolf 1931-7-1 2259 Orange Atwood, lower end of Santa Ana Canyon. 76 Comment
  UCSB52938  Acacia cyanophylla F. M. Roberts, Jr. 1984-3-15 1260 Orange collected 1.0 km SSW and 3.0 km W, along Back Bay Drive in Newport Back Bay Bayview School and U. C. Irvine Campus Center - Newport Back Bay, Back Bay Drive, U. C. Irvine Campus Center 2 Comment
  RSA752716  Acacia longifolia Fred M. Roberts, Sandy Leatherman, Jennifer Pareti 2009-4-14 7152 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  SEINET5642645  Acacia longifolia Shelby J. Wood 2013-3-6 4 Orange Laguna Hills.; 0 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
  SEINET5642646  Acacia saligna Shelby J. Wood 2013-3-6 7 Orange Laguna Hills.; 0 Comment
  CAS-BOT-BC333253  Acer macrophyllum James R. Shevock 1974-3-31 3329 Orange In Trabuco Canyon along FS road 5S13. Santa Ana Mts., Cleveland National Forest 548 Comment
  CAS-BOT-BC333254  Acer macrophyllum Le Roy Abrams 1901-6-15 1819 Orange South Fork Santiago Creek 914 Comment
  CAS-BOT-BC333255  Acer macrophyllum John Thomas Howell 1927-7-26 2839 Orange SE fork of Claymine Canon, N. Santa Ana Mts. 304 Comment
  IRVC16141  Acer macrophyllum R. Meinzer, T. Mulroy 1971-4-25 s.n. Orange Santa Ana Mountains: Upper Trabuco Canyon. Peninsular Ranges Comment
  IRVC7  Acer macrophyllum D. Frees 1965-3-13 s.n. Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  IRVC9265  Acer macrophyllum B. Gittins 1963-4-18 171 c Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges 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
  UCSB47632  Acer macrophyllum Roberts, Fred 1980-5-3 Orange 2.2km SE Trabuco Peak, Santa Ana Mtns 1234 Comment
  SD152962  Achillea millefolium Steve Boyd, Tim Ross 1992-5-20 7455 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area; western edge of the wilderness in Lucas Canyon along a new sedtion of trail heading up major side canyon northward to Sitton Peak Road. 305 Comment
  RSA699744  Achillea millefolium var. californica Fred M. Roberts, David Bramlet 2003-5-15 5875 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 1.41km SSW Gato Gate and 0.35km NNW of SDG&E substation. 122 Comment
  SEINET7063467  Achyrachaena mollis A. G. Vestal 1947-3-31 s.n. Orange About 2 miles southeast of Brea. UTM Zone 11, 415283mE, 3750494mN. (WGS84/NAD83). 90 Comment
  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
  SBBG3414  Acmispon heermannii var. heermannii J. M. Tucker 1941-5-30 261 Orange Ortega Hwy, 2 to 3 mi E of western boundary of Cleveland Nat Forest Comment
  UCD104462  Acmispon strigosus R. Tofsrud 1951-4-25 s.n. Orange Near Orange and L.A. County line on Hwy. 74. 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
  RSA750003  Adenostoma fasciculatum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35319 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UC1544779  Adenostoma fasciculatum D. S. Seigler and E. Rodriguez 1978-5-13 11003 Orange Trabuco Canyon Comment
  RSA357  Adenostoma fasciculatum var. fasciculatum J. T. Howell 1928-4-15 919 Orange East boundary of the Rancho Santa Ana 229 Comment
  UCSB48001  Adenostoma fasciculatum var. fasciculatum Roberts, Fred 1980-6-29 Orange Santa Ana Mtns., Viejo Canyon, 0.4km N Calif. Rte 74; 2.2km ENE San Juan Guard Station 341 Comment
  RSA687673  Adiantum capillus-veneris Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  UCR247503  Adiantum capillus-veneris R. E. Riefner Jr. 2008-7-9 08- 218 Orange South Coast, Laguna Beach, bluff area west of West St and Pacific Coast Hwy 11 Comment
  IRVC22503  Adiantum jordanii Fred M. Roberts 1985-5-1 1693 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  POM188247  Adiantum jordanii Marcus E. Jones 1931-3-23 28426 Orange Laguna Comment
  RSA728669  Agave attenuata R. E. Riefner 2007-2-18 07 -67 Orange City of Rancho Santa Margarita, Tijeras Canyon, N ca. 0.5 mi from Meandering Trails Rd. on Antonio Pwky. 221 Comment
Read comments
Feb 28 2016
  RSA542555  Agrostis pallens Karlin G. Marsh 1989-6-23 s.n. Orange Santa Ana Mountains: Central Santiago Canyon, northeast portion of Fleming Park along Harding Truck Trail. 585 Comment
  RSA754073  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-7-16 35851 Orange Lomas de Santiago, Limestone Canyon 325 Comment
  UCD53225  Agrostis pallens R. Tofsrud 1951-4-1 s.n. Orange Orange-San Diego County borders: Santa Ana Mts. Comment
  CAS-BOT-BC64519  Ailanthus altissima E. R. Johnson 1932-5-1 3704 Orange Rancho Santa Ana, Santa Ana Canyon. Aliso Canyon. 182 Comment
  RSA698217  Allionia Kenneth Beard s.n. Orange Santa Ana riverbank Comment
  UCR215292  Allium haematochiton Fred M. Roberts, D. E. Bramlet 2008-5-13 6952 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  UCSB52871  Allium haematochiton Roberts, Fred; Marsh, G. 1983-3-30 Orange UC Irvine Ecological Preserve, 0.8 km. SSW UCI campus center 60 Comment
  RSA0063249  Allium marvinii Philip A. Munz 1949-5-26 13373 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  CAS-BOT-BC474098  Allium praecox Munz; L. Street; Williams 1919-5-3 2635 Orange Santa Ana River Canyon Comment
  IRVC28639  Allophyllum glutinosum Mark A. Elvin, A. C. Sanders 2005-9-2 4494 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA410096  Allophyllum glutinosum M. B. Dunkle 1934-6-18 3970 Orange Upper San Juan Canyon. 610 Comment
  RSA410099  Allophyllum glutinosum Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak. Comment
  RSA7475  Allophyllum glutinosum C. B. Wolf 1933-8-24 5399 Orange Summit of Santiago Peak, Santa Ana Mountains 1731 Comment
  CAS-BOT-BC170689  Alnus rhombifolia C. B. Wolf 1931-3-6 1855 Orange Trabuco Camp grounds, Trabuco Canyon, W slope of the Santa Ana Mts. 609 Comment
  IRVC188  Alnus rhombifolia D. Kaplan, H. R. Williams 1966-1-8 521 Orange [Trabuco Canyon], Lower Trabuco Campground; limited to water courses of canyons. Santa Ana Mountains Comment
  UC1543134  Alnus rhombifolia Donald G. Nelson 1938-12-26 Orange in creek bottom near Myers Ranch; Santa Ana Mountains, Black Star Canyon, Black Star Creek Comment
  UC484252  Alnus rhombifolia C. B. Wolf 1931-3-6 1855 Orange Trabuco Camp Grounds Santa Ana Mts., Trabuco Canyon (w slope of mts.) Comment
  SEINET8727106 Image available Alyssum maritimum Jean Coulson 1959-1 s.n. Orange Anaheim 2454 W. Broadway, at N. E. Corner of house. Comment
  SD136944  Amaranthus blitoides Steve Boyd, Tim Ross 1994-9-14 8345 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Lucas Canyon trail at stream crossing in Aliso Canyon 309 Comment
  RSA542440  Amaranthus blitoides Fred M. Roberts 1988-10-21 4162 Orange Irvine: Alton Parkway at corner of Jeffrey Rd., 1.5km NNE French Survey Mark. 35 Comment
  RSA592066  Amaranthus deflexus R. E. Riefner 1995-7-27 95 -318 Orange S bluff area of San Clemente Beach. Comment
  IRVC14988  Amaranthus hybridus 1976-10-28 Orange Nieblas Elementary Sch. playground Fountain Valley Comment
  UCR207561  Amaranthus palmeri O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  RSA610217  Amblyopappus pusillus Fred M. Roberts, Julie Vanderwier 1997-4-29 5014 Orange Bolsa Chica Salt Marsh; (US Fish & Wildlife Service cell 60) west of old oil field, 1.1 km. S Chica Survey Mark. 0 Comment
  UCSB48044  Ambrosia acanthicarpa Roberts, Fred 1981-9-26 Orange Anaheim Bay; Calif. Rte. 1 at southern margin of Naval Weapons Station, 1.7 km. SE McGaugh School; 1.1 km. W Hog Island 1 Comment
  SEINET2029172 Image available Ambrosia bipinnatifida Lawrence M. Booth 1932-5-25 1110 Orange Balboa Island Comment
  JEPS40940  Ambrosia chamissonis L. M. Booth 1932-7-30 1336 Orange Balboa Island Comment
  POM202166  Ambrosia chamissonis L. M. Booth 1932-5-25 1110 Orange Balboa Island [Newport Bay]. Comment
  RSA234502  Ambrosia chamissonis James Henrickson 1970-7-24 5015 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  RSA678452  Ambrosia chamissonis Valerie L. Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1115 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  SD39993  Ambrosia chamissonis Edith A. Purer 1932-8-31 4879 Orange Open areas of sand dunes along Route 101 Comment
  UCR109972  Ambrosia chamissonis R. D. Goeden, Don W. Ricker 1970-2-19 s.n. Orange South Coast, Newport Beach, NW edge of town between Seashore Dr., Neptune Ave., 56th and 58th Streets 2 Comment
  UCR281837  Ambrosia confertiflora R. E. Riefner Jr. 2017-8-23 17- 424 Orange South Coast, city of Huntington Beach, Harriet M. Wieder Regional Park, east of Pacific Coast Hwy, north side of Seapoint Street, opposite Cherryhill Drive Comment
  JEPS41025  Ambrosia psilostachya W. L. Jepson 1940-10-6 20179 Orange Horseshoe Bend; Santa Ana River Canon Comment
  POM202607  Ambrosia psilostachya L. M. Booth 1932-8-5 1355 Orange Bolsas Marsh. Comment
  RSA234509  Ambrosia psilostachya James Henrickson 1970-7-25 5045 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
  RSA33797  Ambrosia psilostachya N. C. Cooper 1942-11-9 882 Orange Balboa. 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
  RSA16473  Amorpha californica var. californica Percy C. Everett 1935-6-19 7235 Orange Trabuco canyon. 1/2 mile below W. head of canyon. 1067 Comment
  UC1543190  Amorpha fruticosa Donald G. Nelson 1935-4-6 220 Orange n summer ranger station (near the main hwy of San Juan Canyon, e of San Juan Capistrano, s of Cleveland Nat. Forest); Santa Ana Mountains Comment
  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
  RSA0089446  Amsinckia intermedia Daniel Truong 1991-5-5 10 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of closed area. Comment
  RSA0031721  Anagallis arvensis Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-1 8 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  RSA678449  Anagallis arvensis Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1123 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCR239627  Anagallis arvensis Fred M. Roberts 2012-4-24 7516 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
  RSA678725  Andropogon glomeratus Fred M. Roberts, Carol A. Roberts, Robert Allen 2001-8-4 5518 Orange Santa Ana Mountains: San Juan Canyon at confluence with Viejo Cyn., on San Juan Creek below Calif. Rte. 74, 4.0km WnW Sitton Peak., (33 35' 41 N, 117 29' 14 W; T6S,R6W,SE/4 SE/4 Sect. 34) 287 Comment
  RSA698847  Anemopsis californica Frances Battey s.n. Orange Laguna Canon. Comment
  UC672439  Anemopsis californica Herbert L. Mason 1926-4-25 2902 Orange near Laguna Comment
  RSA309584  Anemopsis californica J. R. Shevock 1974-4-28 3428 Orange Along Pacific Coast Highway 0.3 mile west of Brookhurst toward Beach Blvd. 3 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
  RSA552945  Anemopsis californica Fred M. Roberts, R. E. Riefner 1989-5-2 4325 Orange Aliso-Wood Canyons Regional Park: Lower Woods Canyon, 3.5 km SSE Multon Peak. 30 Comment
  IRVC9385  Anthemis cotula B. T. Gittins 1966-6-22 1411 Orange 0.5mi N Warner on Euclid Ave. Huntington Beach Comment
  POM202162  Anthemis cotula L. M. Booth 1932-5-15 1200 Orange Santa Ana River, 1/2 miles from ocean Comment
  RSA226628  Anthemis cotula Christopher Davidson, Gerald L. Benny 1971-6-15 s.n. Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  RSA4797  Anthemis cotula James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. South East 1/4 Section 25, Township 4S, Range 12 W, Station #1 plant #3. [ or T5S R12W sec.1 SW/4] 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
  RSA594820  Antirrhinum coulterianum Fred M. Roberts, Sandra Leatherman, Brian Leatherman 1994-4-24 4914 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  RSA701675  Antirrhinum nuttallianum L. C. Hull 1939-9-8 s.n. Orange Laguna Hills Comment
  SBBG6704  Antirrhinum nuttallianum J. M. Tucker 1941-5-30 260 Orange Ortega Hwy (St Hwy 74), 2 to 3 mi E of W boundary of Cleveland Nat Forest Comment
  POM354910  Antirrhinum nuttallianum subsp. subsessile Louis C. Wheeler 1932-6-25 854 Orange Newport Bay. 3 Comment
  UCR177863  Aphanisma blitoides Eliza L. Maher 2006-5-2 s.n. Orange South Coast, Dana Point Headlands, CNLM preserve 46 Comment
  RSA731994  Apiastrum angustifolium A. C. Sanders, L. Farley, F. M. Roberts, D. E. Bramlet 2008-4-1 34656 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  UCR100451  Apium graveolens B. G. Pitzer 1996-4-30 2771 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR12549  Apium graveolens J. S. Davis 1972-5-6 720506- 22 Orange South Coast, Newport Beach; corner of San Joaquin Hills Road and Back Bay Road 0 Comment
  UCR230242  Apocynum cannabinum Dick Newell, Peter Wetzel, Cassie Backer 2011-7-5 202 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 242 Comment
  RSA0061174  Aralia californica Robt. Allen 2007-8-11 s.n. Orange Santa Ana Mountains region: Silverado Canyon, Big Cone Springs. Along Maple Springs Road (5S04), 4.6 road miles N of Forest Gate. East side of roadway. 1099 Comment
  IRVC19394  Araujia sericifera R. L. Allen 1983-2-12 A627 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  IRVC27880  Araujia sericifera A. C. Sanders, Mark A. Elvin 2003-10-12 27319 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  UCR129346  Arbutus menziesii C. B. Wolf 1933-11-8 05534 Orange Santa Ana Mtns., Trabuco Canyon on the south wall opposite the Trabuco Truck Trail 915 Comment
  SEINET10449344  Arctostaphylos catalinae James S. Miller 2001-12-15 Miller 10652 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  IRVC1253  Arctostaphylos glandulosa subsp. glandulosa A. S. Boughey 1965-3-16 63 Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA629316  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15518 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 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
  RSA629319  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15526 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA629326  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15510 Orange Rd. 6S06, 1km northeast of Blue Jay Campground, north of El Cariso (Hwy 74) 1050 Comment
  RSA629329  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15515 Orange Road to Los Pinos Peak (3S04), 2 km northeast of Blue Jay Campground and 1 km above 5S05. North of Hwy. 74. 1100 Comment
  SD247632  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49683 Orange Northern Santa Ana Mountains; Coal Canyon [NW of Sierra Peak] 456 Comment
  RSA5358  Arctostaphylos glandulosa subsp. zacaensis C. B. Wolf, B. D. Stark 1932-12-19 4438 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive 762 Comment
  RSA545  Arctostaphylos glandulosa subsp. zacaensis J. T. Howell 1927-6-26 222 Orange Claymine Canyon, near Sierra Peak. 457 Comment
  UC1137197  Arctostaphylos glandulosa subsp. zacaensis Willis E. Pequegnat 1940-6-19 Orange head of West Ladd Canyon Cleveland National Forest, Corona Quadrangle, Santa Ana Mts. 914 Comment
Read comments
Apr 2 2014
  RSA80657  Arctostaphylos glauca var. glauca P. A. Munz, E. K. Balls 1952-8-19 17923 Orange summit Ortega Hwy, Santa Ana Mts. Comment
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Nov 1 2013
  RSA748167  Arctostaphylos otayensis K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 6 Orange Cleveland National Forest, 2 mi. N of Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
Read comments
Dec 19 2014
  RSA607257  Arctotis venusta L. C. Wheeler 1933-10-21 2224 Orange Newport Bay. 3 Comment
  RSA0054828  Arenaria douglasii Keith E. Hoffmaster 1936-5-3 723 Orange Santa Ana Mts. (Santiago Peak). Comment
  UC592822  Argemone munita Carl B. Wolf 1937-12-3 9382 Orange between Santiago Peak and Modjeska Peak (Santa Ana Mountains, Main Divide Motorway); Santa Ana Mountains, Main Divide Motorway 1645 Comment
  RSA18605  Argemone munita subsp. robusta Carl B. Wolf 1937-12-3 9382 Orange Main divide motorway. Between Santiago Peak and Modjeska Peak. 1646 Comment
  RSA752035  Argyranthemum foeniculaceum Fred M. Roberts 2008-3-27 6814 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 1, 0.5km W Marine Institute (Dana Point Harbor). 45 Comment
  RSA0013950  Aristida adscensionis Fred M. Roberts 2008-4-24 6929 Orange Lomas de Santiago: Loma Ridge, lower Hicks Cyn. 350 meters east of Haul Rd., 1.9 km E Rattlesnake Cyn. Reservoir dam and 2.1 km W Bee Peak. Irvine Ranch Conservancy. 180 Comment
  RSA682760  Aristida purpurea Scott D. White, Amanda Duchardt 2003-3-27 8857 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  POM293902  Artemisia biennis Robert M. Muir 1946-10-24 s.n. Orange Midway between Corona del Mar and Santa Ana. Comment
  RSA689539  Artemisia biennis R. E. Riefner 2003-8-17 03 -330 Orange Costa Mesa, Talbert Regional Park, Discovery Walk Road and Balboa Avenue. 3 Comment
  IRVC9384  Artemisia californica B. Gittins 1963-3-8 22 Orange east shore. Newport Beach Comment
  JEPS36942  Artemisia californica L. M. Booth 1932-7-27 1327 Orange Newport Bay Comment
  SD240837  Artemisia californica T. B. Salvato 2010-9-27 5124 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Drive and Cove Road, beyond the end of Green Lantern Street, overlooking Dana Point Harbor (Dana Point 7.5'Q) 60 Comment
  UCR100185  Artemisia californica Scott D. White 1996-12-20 4634 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 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
  RSA725470  Artemisia douglasiana Fred M. Roberts, Megan Lulow 2007-7-30 6548 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  RSA778  Artemisia douglasiana J. T. Howell 1927-8-13 627 Orange Santa Ana River Bottom 152 Comment
  UCR274150  Artemisia dracunculus Dick Newell, Don Millar 2016-5-24 427 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Merkel Spur Trail at Limestone Ridge Road, 0.13 mile south of Cactus Canyon Road 417 Comment
  RSA443828  Artemisia tridentata Gordon Marsh, Karlin G. Marsh 1978-5-20 s.n. Orange Santa Ana Mountains, Coal Canyon, near canyon mouth, extreme north end bordering Santa Ana Canyon Comment
  HSC4510  Arthrocnemum subterminale J. W. Johnson 1961-3-30 Orange Newport Beach, seep along cliff base at N side of Big Canyon near upper Bay Rd. Comment
Read comments
Jul 17 2015
  IRVC412  Arthrocnemum subterminale E. Cowper 1965-3-1 Orange [Newport] Back Bay. Newport Beach Comment
  POM201945  Arthrocnemum subterminale L. M. Booth 1932-5-30 1135 Orange Newport Lagoon Comment
  POM704  Arthrocnemum subterminale I. M. Johnston 1918-9-3 2152 Orange Laguna Beach. 6 Comment
  CDA31507  Arundo donax D. G. Kelch 2006-12-9 6 .559 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA0104738  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-7-3 35672 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor. 365 Comment
  RSA657741  Asclepias eriocarpa Ken Greby 1985-5-17 25 Orange On hillsides behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  UC729854  Asclepias fascicularis Carl B. Wolf 1932-7-7 3853 Orange about 1 mi e Los Alamitos Blvd. (Bixby Ave., Bryant Ranch, 100 ft. w of se corner of NE40 of NW160 of Sect.32) Comment
  UCR233746  Asclepias fascicularis Fred M. Roberts 2008-6-12 7041 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  IRVC12865  Asparagus plumosus B. T. Gittins 1964-4-15 390 Orange Costa Mesa, 1613 Sandalwood. Comment
  UCR149413  Asphodelus fistulosus Fred M. Roberts 2000-6-5 5337 Orange Chino Hills, Yorba Linda, along Hidden Hills Dr. near Sunbeam Lane, on ridge above Box Canyon 376 Comment
  IRVC177  Asplenium bulbiferum McGuire 1965-5-4 HS0564 Orange Corona del Mar: Bayside Dr.. Southern Coastal Comment
  POM146199  Aster bernardinus F. M. Reed 1927-11-9 5634 Orange Margin of Hwy, 1 mile S of Tustin. Comment
  POM47595  Aster bernardinus I. M. Johnston 1924-8-29 s.n. Orange 4 mi. S of Santa Ana. Comment
  POM201791  Aster hesperius L. M. Booth s.n. Orange Newport Beach Comment
  UCR100183  Aster subulatus Scott D. White 1993-3-5 1108 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  NY621861  Astragalus brauntonii C. B. Wolf 1936-6-22 8000 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UCR266298  Astragalus didymocarpus D. E. Bramlet, J. E. Harrison 2008-4-3 4154 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
  RSA554621  Astragalus trichopodus Scott D. White 1992-10-20 968 Orange Vicinity of city of Brea, Immediately N of Carbon Canyon Rd & E of Placentia Avenue +/-1mi (air) SSE of Tonner Canyon. 183 Comment
  IRVC22732  Astragalus trichopodus var. lonchus Fred M. Roberts 1985-5-13 1789 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  JEPS54671  Astragalus trichopodus var. lonchus C. J. Kraebel 1929-12-9 Orange hillside s San Juan Hill (Rancho Santa Ana Botanic Garden, in extreme e corner of Orange County, n of Santa Ana River, e of Anaheim); Rancho Santa Ana Botanic Garden, nr San Juan Hill 304 Comment
  UCR186685  Atriplex T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1906 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  UCR281836  Atriplex R. E. Riefner Jr. 2006-10-21 06- 662 Orange South Coast, city of Irvine, MacArthur Blvd, c. 0.2 mile south of Jamboree Road, extendingto along Bonita Creek 12 Comment
  UC1980275  Atriplex R. E. Riefner Jr. 2006-11-15 06 -678 Orange City of Newport Beach, Bristol St. at Jamboree Rd. Comment
  RSA737233  Atriplex amnicola R. E. Riefner 2006-2-12 06 /21/2015 Orange N end of City of San Clemente, along I5 N, immediately S of Camino de Estrella exit ramp. 66 Comment
  RSA737375  Atriplex amnicola R. E. Riefner 2006-5-7 06 -180 Orange N end of City of San Clemente, along I5, N side, immediately S of Camino De Estrella exit ramp. 66 Comment
  RSA737899  Atriplex amnicola R. E. Riefner 2006-4-25 08 -118 Orange City of San Clemente, vicinity of Camino de Los Mares and Calle Nuevo. 45 Comment
  RSA743668  Atriplex amnicola R. E. Riefner 2007-8-4 7 -344 Orange City of San Juan Capistrano, San Juan Creek, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  RSA65355  Atriplex argentea F. W. Peirson 1924-8-29 5090 Orange Corona Del Mar Comment
  UCR158035  Atriplex argentea Adrian Wolf 1998-7-1 405 Orange South Coast, Peters Canyon Channel, east of channel near Harvard Ballfield, between Harvard Ave. & creek, south of Warner Ave. to Barranca 15 Comment
  UC7071  Atriplex argentea var. mohavensis A. J. McClatchie 1896-6-20 Orange Westminster Comment
  POM293188  Atriplex californica Lyman Benson 1946-5-13 12092 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
  RSA452403  Atriplex californica Albert J. Perkins 1923-05 s.n. Orange Laguna heights Comment
  RSA743453  Atriplex californica Fred M. Roberts 2008-7-10 7073 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
  POM47598  Atriplex californica I. M. Johnston 1924-8-29 s.n. Orange Corona Del Mar Comment
  POM201812  Atriplex canescens L. M. Booth 1932-7-23 1301 Orange Corona del Mar, Newport Beach Comment
  RSA452458  Atriplex canescens Albert J. Perkins 1923-6-28 s.n. Orange Santa Ana, Crescent Beach Comment
  RSA65358  Atriplex canescens F. W. Peirson 1924-8-29 4528 Orange Corona Del Mar Comment
  UCR221462  Atriplex canescens Dick Newell, Don Millar, Steve Shinn 2010-9-28 37 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Haul Road (Jeffrey Rd.) at Hwy 241 toll road 221 Comment
  UCR66987  Atriplex canescens A. C. Sanders 1990-10-6 10193 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  CAS-BOT-BC170192  Atriplex canescens subsp. canescens I. M. Johnston 1918-9-3 2149 Orange Laguna Beach 6 Comment
  CAS-BOT-BC170193  Atriplex canescens subsp. canescens Joseph Andorfer Ewan 1932-7-28 7707 Orange Seaward bluffs at Corona del Mar. Comment
  CAS-BOT-BC170194  Atriplex canescens subsp. canescens John Thomas Howell 1927-7-29 2874 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  CAS-BOT-BC170195  Atriplex canescens subsp. canescens John Thomas Howell 1927-10-22 3163 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  IRVC24454  Atriplex canescens subsp. canescens Fred M. Roberts 1985-11-20 2560 Orange Newport Back Bay, near Camp Survey Mark, Newport Beach 2 Comment
  SEINET1908425  Atriplex glauca A. C. Sanders 2008-1 35139 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 1000 Comment
  UCR130490  Atriplex glauca R. E. Riefner Jr. 2002-5-4 02- 101 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  RSA741695  Atriplex glauca R. E. Riefner Jr. 2009-1-2 09 /04/2015 Orange City of Newport Beach, Upper Newport Bay, vicinity of Irvine Ave. and Santiago Dr. 10 Comment
  UCR154265  Atriplex lentiformis Mark A. Elvin 2004-5-2 3423 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  CLARK-A1528-2529  Atriplex leucophylla John C. Roos 1937-2-23 1307 Orange Laguna Beach Comment
  CHSC26526  Atriplex rosea James Henrickson 1970-7-25 5068 Orange 2 miles N. of Huntington Beach along dry NE margin of Bolsa Chica Salt Marsh. 0 Comment
  POM201896  Atriplex rosea L. M. Booth 1932-7-4 s.n. Orange Newport Lagoon Comment
  RSA234507  Atriplex rosea James Henrickson 1970-7-25 5068 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March 0 Comment
  UC1714443  Atriplex semibaccata P. A. Munz 1934-3-26 13136 Orange edge of salt marsh Newport Beach Newport Beach 4 Comment
  UCR152758  Atriplex semibaccata D. E. Bramlet, K. Peterson 2003-3-19 3346 A Orange South Coast, bluffs below the Ritz-Carlton, upper Salt Creek, Salt Creek Beach Park Comment
  POM279025  Atriplex semibaccata Grant D. Brown 1949-10-9 400 Orange Three Arches, 2 miles S of Laguna Beach on Hwy. Alt. 101. 30 Comment
  POM664  Atriplex semibaccata D. L. Crawford 1915-09 s.n. Orange Huntington Beach. Comment
  RSA5823  Atriplex semibaccata C. B. Wolf 1932-6-28 3799 Orange 100 ft. east of pump house at East End Camp. 9 Comment
  POM201963  Atriplex serenana L. M. Booth 1932-7-25 1315 Orange Santa Ana River 2 miles from ocean. Comment
  CAS-BOT-BC176757  Atriplex serenana var. serenana John Thomas Howell 1927-7-22 2817 Orange On north side of Santa Ana [Canon] Canyon 335 Comment
  SD220052  Atriplex suberecta Mark A. Elvin 2004-5-2 3424 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  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
  UCR208060  Atriplex suberecta R. E. Riefner Jr. 1999-5-22 99- 292 Orange South Coast, city of Dana Point, west of Pacific Coast Hwy, vicinity of Salt Creek Park and Ritz Carlton Hotel 15 Comment
  RSA232220  Atriplex subspicata James Henrickson 1970-8-22 s.n. Orange 2.5 miles NNW of Huntington Beach 0 Comment
  RSA48695A  Atriplex subspicata I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  POM201899  Atriplex watsonii L. M. Booth 1932-5-12 1001 Orange Newport Bay. Comment
  SD80969  Atriplex watsonii James Henrickson 1970-7-25 5033 Orange 3I(c) miles northwest of Huntington Beach on margin of Bolsa Bay, Ao mile southeast of Warner Ave., along Pacific Coast Highway. Comment
  IRVC29089  Avena barbata Fred M. Roberts 1989-3-17 4204 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA590948  Avena barbata Fred M. Roberts 1991-5-2 4777 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak., UTM Z113718000mN, 4 29 200m E 110 Comment
  UCR193069  Avena fatua A. C. Sanders, T. B. Salvato 2008-5-13 35336 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA17461  Azolla filiculoides Carl B. Wolf 1936-9-21 8273 Orange Rancho Santa Ana, Santa Ana Canyon 121 Comment
  CHSC26009  Baccharis douglasii James Henrickson 1970-8-22 5292 Orange 2 1/2 miles NNW of Huntington Beach in dry northern part of Bolsa Chica Salt Marsh. 0 Comment
  CHSC39255  Baccharis douglasii M. O. Dillon 1977-4-12 934 Orange Santa Ana Mts., Silverado Canyon. Comment
  RSA792937  Baccharis emoryi R. F. Thorne 1984-1 s.n. Orange Newport Back Bay. Comment
  SD135168  Baccharis glutinosa Brian Fink 1992-10-7 Orange Huntington Beach Comment
  RSA653416  Baccharis malibuensis R. E. Riefner, Adrian Wolf 2000-8-23 20 -732 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  UCR186681  Baccharis pilularis T. B. Salvato, Katie Kurtz 2006-10-15 1914 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  UCR237841  Baccharis pilularis Mark A. Elvin 2003-2-2 2270 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  CAS-BOT-BC133221  Baccharis pilularis subsp. consanguinea T. B. Salvato 2010-10-27 5131 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  CAS-BOT-BC106730  Baccharis salicifolia C. L. Hitchcock; C. V. Muhlick 22118 Orange 1 mi. n. of Brea, at mouth of Brea Canyon, along intermittent stream. Comment
  CAS-BOT-BC106731  Baccharis salicifolia Ira L. Wiggins 1965-10-27 20309 Orange Banks of sluggish stream along Brea Canyon Road, just SW of Los Angeles County Line. Comment
  IRVC29726  Baccharis salicifolia Mark A. Elvin, Barry S. Nerhus 2006-11-4 5257 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  POM350369  Baccharis salicifolia Gale Sphon 1955-3-13 s.n. Orange Silvarado canyon Comment
  RSA184139  Baccharis salicifolia I. L. Wiggins 1966-2-4 20418 Orange Watercourse near mouth of Trabuco Canyon.Waterfront St. near Mission Rock Terminal, San Francisco Comment
  RSA357002  Baccharis salicifolia R. F. Thorne 1975-4-6 45577 Orange Head of Newport Bay. Comment
  RSA685928  Baccharis salicifolia Fred M. Roberts 2003-3-27 5627 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
  RSA751987  Baccharis salicifolia Fred M. Roberts, Eliza Maher 2008-3-26 6799 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 71 Comment
  SEINET5642762  Baccharis salicifolia Shelby J. Wood 2013-3-9 16 Orange Huntington Beach, Central Park.; 0 Comment
  UCR240069  Baccharis salicina Dick Newell, Judy Booth 2012-9-26 289 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 3 Comment
  SD181717  Baccharis sergiloides Scott D. White 1998-10-15 7187 Orange Yorba Linda, 0.5 mile south of Telegraph Canyon between Ohio St. and Fairmont. 149 Comment
  RSA699553  Baccharis viminea Kenneth Beard 1934-02 s.n. Orange Walnut grove on Freeman Street, Santa Ana. Comment
  CAS-BOT-BC443960  Bacopa monnieri R. E. Riefner, Jr. 2012-7-1 12 -295 Orange City of Mission Viejo, Oso Creek, ca. 1.3 mi N of Paseo De Colinas Ave. on Camino Capistrano Ave. 87 Comment
  POM202235  Bassia hyssopifolia L. M. Booth 1932-8-5 1348 Orange West Newport Beach Comment
  RSA5825  Bassia hyssopifolia C. B. Wolf 1932-6-28 3797 Orange 100 ft. east of pump house at East End Camp. 9 Comment
  LA105119  Batis maritima Barry A. Prigge; 1988-6-30 8118 Orange eastern edge of Newport Beach, NE of Pacific Coast Hwy bridge over Santa Ana River/Greenville-Banning channels 0 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
  SD80954  Batis maritima James Henrickson 1970-7-25 5034 b Orange 3.5 miles northwest of Huntington Beach on sandy margin of Bolsa Bay, 0.25 southeast of Warner Avenue along Pacific Coast Highway 0 Comment
  RSA790  Bebbia juncea J. T. Howell 1927-6-2 13 Orange Sandstone Ridge, Botany Garden, RSA. 152 Comment
  SBBG45055  Bebbia juncea C. B. Wolf 1931-7-25 2295 Orange Santa Ana, Santa Ana Cyn 121 Comment
  CAS-BOT-BC106378  Bebbia juncea var. aspera Helen D. Geis 1902-1-1 s.n. Orange Santiago Canyon [Canon] Comment
  UC284232  Bebbia juncea var. aspera P. A. Munz 1923-7-8 7326 Orange Santa Ana River Canon Comment
  CHSC26010  Beta vulgaris James Henrickson 1970-7-25 5082 Orange 3 1/2 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove- Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. 2 Comment
  UCR237916  Beta vulgaris Mark A. Elvin 2003-2-2 2296 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA683221  Bidens laevis Scott D. White, Matt Carlton 2003-11-20 9876 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  UCR182888  Bidens laevis Pat Akers 2006-3-25 PA2 06 Orange Yorba Linda, N edge of Santa Ana River. south of La Palma Dr., 0.5-0.8 mi. east of Yorba Linda Dr 122 Comment
  RSA92407  Bidens laevis F. W. Peirson 1924-10-19 5245 Orange Wintersberg. Comment
  UCSB48378  Bloomeria crocea Roberts, Fred 1982-5-22 Orange Dana Point: jct. of Stone Hill Dr. & Selva Rd., 1.0km ESE Dana Hills High School; 1.7km SW Marco Forster Junior High School 40 Comment
  RSA652084  Bloomeria crocea Shlomo Gat 1959-5-12 38 Orange Hills in Orange county. Comment
  RSA698737  Bloomeria crocea L. C. Hall 1934-4-1 s.n. Orange Panerama Heights Comment
  RSA542343  Bloomeria crocea var. crocea Fred M. Roberts, Carol A. Williams 1988-4-12 3923 Orange Lomas de Santiago: Loma Ridge, 3.3 km NW Bolero Lookout. 475 Comment
  CAS-BOT-BC31013  Bolboschoenus maritimus LeRoy Abrams 1901-6-12 1764 Orange Salt Marsh west of Westminster. Comment
  UCR158463  Bolboschoenus maritimus subsp. paludosus Adrian Wolf 1998-5-27 322 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  CAS-BOT-BC21117  Bolboschoenus robustus James R. Shevock 1972-9-27 2288 Orange South Coast Ranges. Upper Newport Bay, city of Newport Beach. 1 Comment
  RSA732250  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts 2008-4-22 35003 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
  UCR190974  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts 2008-4-22 35003 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  UCR192080  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35281 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA700930  Bougainvillea Wilson Seacord 1935-10 s.n. Orange H.S. Campus (physiographic region CR3) Comment
  UCR218460  Bougainvillea glabra Robert DeRuff 2008-1 348 Orange South Coast, Upper Newport Bay, between Mariner's Drive and 23rd St. 12 Comment
  POM8745  Bowlesia incana P. A. Munz, R. D. Harwood 1920-4-25 3723 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  UCR170257  Brachypodium distachyon Scott D. White, Jennifer H. Jones 2005-4-26 10973 Orange Laguna Beach area., City of Laguna Beach. 549 Nyes Place. Undeveloped lot within a residential neighborhood. Proposed for new home 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
  RSA0015953  Brassica nigra A. C. Sanders 2012-5-2 7688 Orange Lomas de Santiago: Loma Ridge, Las Flores Canyon at west end of ridge 0.4 km ESE Orange County Emergency Operations Center (hill 1311) and 2.4 km WSW Irvine Lake Park. 362 Comment
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Nov 17 2018
  HSC6583  Brassica rapa J. W. Johnson 1961-3-29 Orange Newport Beach, along upper Newport Bay Comment
  UCR98906  Brassica rapa Scott D. White 1993-2-17 1050 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Cyn Rd & east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Cyn. 183 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
  RSA0073643  Brassica tournefortii Fred M. Roberts, Lee Ann Caranza, Eliza Maher 2009-4-7 7144 Orange South Coast Region: Dana Point Headlands: Dana Point CNLM Preserve, 0.7 km WNW Dana Point Marine Institute at Dana Point Harbor, near 2nd Lookout along trail. 49 Comment
  RSA561494  Brickellia nevinii Steve Boyd, K. A. Boyd 1992-7-9 7656 Orange Northern Santa Ana Mountains, Upper Tin Mine Canyon along Skyline Road, 1 mile below jct with Main Divide Road Comment
  RSA734664  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-6-17 35486 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  RSA792246  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-4-22 35025 Orange Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 366 Comment
  UCR193046  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-6-17 35486 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  RSA678715  Bromus carinatus var. carinatus Fred M. Roberts, Dave E. Bramlet 2002-6-6 5525 Orange Santa Ana Mtns: Main Divide Truck Trail, Upper Indian Cyn., 1.7km W Trabuco Pk., (33 42' 13 N, 117 29' 34 W) 1268 Comment
  RSA6129  Bromus catharticus C. B. Wolf 1932-6-13 3727 Orange Fullerton, Rose Drive 53 Comment
  RSA734688  Bromus catharticus A. C. Sanders, T. B. Salvato 2008-5-13 35355 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCD58344  Bromus catharticus Ira L. Wiggins 1965-9-26 20264 Orange Along Orangethorpe Avenue near Atwood. Comment
  UCR247915  Bromus catharticus Fred M. Roberts 2012-7-18 7678 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill 37 Comment
  LA35610  Bromus diandrus A. K. Khudairi; 1951-5-20 sn Orange Westminster Comment
  UCR102005  Bromus diandrus B. G. Pitzer 1997-3-25 3039 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  UCR239626  Bromus diandrus Fred M. Roberts 2012-4-24 7494 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
  UCR48031  Bromus diandrus Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  RSA44  Bromus diandrus J. T. Howell 1927-6-9 67 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  IRVC27728  Bromus hordeaceus Mark A. Elvin 2004-5-2 3408 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UCR100463  Bromus hordeaceus B. G. Pitzer 1996-4-30 2760 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  SEINET14423638  Bromus mollis J. Henrickson 1970-8-15 5283 Orange 3 mi NW of Huntington Beach, in Monathochloe-Salicornia dominated area N of Bolsa Bay, 3/4 mi SE of Warner Ave. 1 Comment
  CAS-BOT-BC161822  Bromus rubens Ira L. Wiggins 1966-3-18 20531 Orange Experimental Garden back of greenhouse, California State College at Fullerton. Comment
  RSA696611  Bromus rubens Ranki s.n. Orange Casta Mesa Comment
  CLARK-A1528-972  Bromus willdenowii Patricia A. Andrews 1975-6-26 5918 Orange Capistrano Bay Beach 9 Comment
  POM202606  Cakile edentula subsp. edentula L. M. Booth 1932-5-27 1131 Orange Newport Beach Comment
  UC907536  Calamagrostis koelerioides Clark H. Gleason 1949-8-5 Orange near Hidden Ranch; Cleveland National Forest, Black Star Canyon Comment
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May 27 2008
  UC1618044  Calandrinia Donald G. Nelson 1933-7-16 163 Orange hills n. Fullerton 76 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
  RSA737235  Calandrinia breweri R. E. Riefner 2008-4-15 08 -70 Orange Irvine Ranch Reserve, North Irvine Ranch, S of Windy Ridge Rd. ca. 0.5 mi from West Forst of upper Fremond Canyon. 496 Comment
  RSA732277  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-4-22 35043 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
  RSA743380  Calandrinia ciliata Fred M. Roberts 2008-4-9 6860 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  RSA749635  Calandrinia ciliata D. E. Bramlet 2008-4-28 4245 Orange East Fork of Upper Weir Cyn, 1.2km east of the main Cyn. & 91m W of the upper boundary of Gypsum Cyn. 409 Comment
  SD234997  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34576 Orange Peninsular Range: Santa Ana Mountains; saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mile N of (Santiago Reservoir) Irvine Lake (Black Star Canyon7.5' Q) 405 Comment
  UCD100199  Calandrinia ciliata C. L. Hitchcock 1966-3-15 24132 Orange 1/2 mile e. of Brea. Comment
  SD82810  Calandrinia maritima P. A. Munz 1926-4-15 7088 Orange sea-bluffs, Laguna Beach Comment
  RSA782061  Callistemon citrinus Mark A. Elvin 2003-2-23 2309 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  SD237519  Callistemon citrinus Mark A. Elvin 2003-2-23 2309 Orange South Coast: Irvine, San Joaquin Marsh along the berm of San Diego Creek. 3 Comment
  CDA5109  Callistemon viminalis R. E. Riefner Jr. 2006-10-19 06 -559 Orange City of Newport Beach, Irvine Coast Trail at San Diego Creek, near SR-73 crossing, south of Jamboree Road. Comment
  RSA678167  Calochortus catalinae Mark Elvin, Charles Gorenst 1996-3-16 113 Orange Crystal Cove State Park300m down hill from no brains trail. Comment
  RSA749646  Calochortus catalinae D. E. Bramlet 2008-6-3 4289 Orange Unspecified. 483 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
  RSA777234  Calochortus catalinae Orlando Mistretta, Christine Mistretta 2010-4-23 5073 Orange Vicinity of Tonner Cyn. Along Southern Califonia Edison Transmission Line corridor (Segment 8, map sheet 83 per TRTP survey 2010) 338 Comment
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Feb 24 2018
  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
  UCR207998  Calochortus catalinae Mark A. Elvin 1995-1 04 Orange Santa Ana Mtns., Starr Ranch, National Audubon Society; west side of Bell Creek, junction of Leslie Love Trail 213 Comment
  UCR262007  Calochortus catalinae Dick Newell, Don Millar 2015-3-31 399 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Limestone Canyon Rd., 0.3 mi. SW of junction of Santiago Cyn. Rd. and Silverado Cyn. Rd. 311 Comment
  RSA16422  Calochortus splendens Percy C. Everett 1935-5-19 6874 Orange Santa Ana Mountains, Baker Canyon, West Ladd Truck trail. 305 Comment
  UC1178589  Calochortus splendens Peter Kamb 1948-6-19 1107 Orange se slope Santiago Peak (Orange-Riverside Counties); Santa Ana Mts. 1219 Comment
  UCR76184  Calochortus splendens B. G. Pitzer, Stu Hemstreet 1992-5-27 1967 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  CAS-BOT-BC492697  Calochortus splendens D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach Comment
  RSA68629  Calochortus splendens Frank W. Peirson 1923-5-5 4097 Orange Divide 1 mile east of El Modena. Comment
  RSA761930  Calochortus splendens Suzanne Espino 2005-4-26 1 Orange Caspers Wilderness Park, East Ridge Trail. Near water tank 168 Comment
  CAS-BOT-BC132660  Calochortus weedii var. intermedius John Thomas Howell 1927-7-3 2636 Orange Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
  RSA539374  Calochortus weedii var. intermedius Fred M. Roberts, Carol Roberts 1988-6-2 4040 Orange Santa Ana Mountains: Silverado Canyon, Maple Springs Truck Trail, 4.3 kmilometers above gate, 1.0 kilometer WSW Bald Peak. 820 Comment
  RSA580944  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-2 2378 Orange San Joaquin Hills. On ridgeline north of Little Sycamore Canyon. The site in located 244 m NE of Little Sycamore Canyon and 1.3 km west of Laguna Canyon. Road. 165 Comment
  RSA68621  Calochortus weedii var. intermedius Frank W. Peirson 1927-6-20 7350 Orange Site for botanical garden (Rancho Santa Ana) Comment
  UCR132987  Calochortus weedii var. intermedius Adrian Wolf 2000-6-20 463 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 0.62 km NNW of mouth of Black Star Canyon 305 Comment
  UCR230826  Calochortus weedii var. intermedius Dick Newell, Don Millar, Shara Harris 2011-6-21 187 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 225 Comment
  JEPS61770  Calochortus weedii var. weedii John Thomas Howell 1927-6-22 2572 Orange Rancho Santa Ana Santa Ana Canyon 152 Comment
  RSA162004  Calochortus weedii var. weedii J. D. Olmsted 1958-6-10 156 Orange 6.5 miles SW of Corona on Oak Flat fire road (turn S in Corona from US onto Lincoln) Comment
  RSA17143  Calycadenia tenella C. B. Wolf 1936-6-17 7946 Orange Santa Ana Mountains, along Ortega Highway 5.6 miles above San Juan Capistrano. 76 Comment
  RSA749642  Calycadenia tenella D. E. Bramlet 2008-4-15 4178 Orange Hicks Cyn., 301m E Haul Rd, & 1.4km N of the Bee Cyn Access Rd. 206 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
  JEPS52574  Calyptridium monandrum Alice King April 1908 Orange Santa Ana River 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
  UCR192473  Calystegia macrostegia A. C. Sanders, Fred M. Roberts 2008-3-25 34541 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CSUSB664  Calystegia macrostegia Dean Jones 1966-4-12 Orange Imperial Highway, about 1.5 miles north of Riverside Freeway [91]. 335 Comment
  CSUSB666  Calystegia macrostegia subsp. cyclostegia Sue Freeman 1966-3-27 Orange Laguna. About 30 yards off Wave Street in Laguna (end of street); on grassy hillside 100 feet above ocean and over crest of hill from it. 30 Comment
  RSA135174  Calystegia macrostegia subsp. cyclostegia P. H. Raven 1959-5-5 14057 Orange Mulholland Drive near Beverly Glen. Comment
  CAS-BOT-BC221302  Calystegia macrostegia subsp. intermedia John Thomas Howell 1927-6-9 2462 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC221304  Calystegia macrostegia subsp. intermedia C. B. Wolf 1931-3-6 1865 Orange 2 miles from Orange County Park, on the road to Anaheim 152 Comment
  CAS-BOT-BC221305  Calystegia macrostegia subsp. intermedia C. B. Wolf 1932-3-6 1865 Orange 2 miles from Orange County Park on road to Anaheim 152 Comment
  RSA659546  Calystegia macrostegia subsp. macrostegia P. Shirokawa 1998-5-7 16 Orange Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  UC536955  Calystegia sepium subsp. binghamiae Lawrence M. Booth 1932-8-5 1359 Orange E of Huntington Beach (marsh border). Comment
  POM201723  Calystegia sepium subsp. limnophila L. M. Booth 1932-6-28 1214 Orange Bolsa Chica Comment
  RSA33847  Calystegia soldanella N. C. Cooper 1944-6-3 1348 Orange Balboa Beach, On beach at sealevel. 0 Comment
  SFV18301  Calystegia soldanella J. Diaz, V. Bendijo, S. L. Diaz, H. Mercurio 2002-5-3 s. n. Orange Newport Beach. Small dunes south of Balboa Road. Comment
  RSA394832A  Calystegia soldanella M. B. Dunkle 1935-2-10 4326 Orange San Orenfro 3 Comment
  UCR118679  Camissonia A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23341 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  UCR193261  Camissonia A. C. Sanders, Fred M. Roberts 2008-6-17 35521 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  RSA504  Camissonia bistorta J. T. Howell 1928-4-7 898 Orange Bee Canyon, Rancho Santa Ana 152 Comment
  CSUSB161  Camissonia bistorta Patricia Healy 1968-5-11 Orange Cameo Shores, 1 mile from Corona del Mar, on beach cliff. Comment
  UCR191475  Camissonia californica A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34658 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
  CHSC10115  Camissonia cheiranthifolia subsp. suffruticosa J. W. Johnson 1960-8-18 Orange Newport Beach. Beside Newport Bay by Highway 101. Comment
  POM180497  Camissonia cheiranthifolia subsp. suffruticosa L. R. Abrams 1917-6-23 6576 Orange Balboa Comment
  RSA72261  Camissonia cheiranthifolia subsp. suffruticosa F. W. Peirson 1924-5-31 4670 Orange 5 miles southeast of Laguna Beach. Comment
  UCR191366  Camissonia hirtella A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34624 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
  UCR191424  Camissonia hirtella A. C. Sanders, Fred M. Roberts 2008-4-8 34775 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
  RSA508  Camissonia lewisii J. T. Howell 1928-4-7 896 Orange Bee Canyon, Rancho Santa Ana 152 Comment
  RSA609006  Camissonia lewisii L. M. Booth 1932-5-12 1034 Orange Newport Beach. Comment
  CAS-BOT-BC160446  Camissoniopsis cheiranthifolia subsp. suffruticosa H. E. McMinn 1924-7-19 1291 Orange Sunset Beach Comment
  UC523554  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange dunes about town Sunset Beach Comment
  UCSB48058  Camissoniopsis cheiranthifolia subsp. suffruticosa Roberts, Fred 1982-4-3 Orange Dana Point Headlands, north of Dana Strand Road, 0.5km W Dana Point Harbor; 0.8 km SSW Richard Henry Dana School 80 Comment
  SD181434  Camissoniopsis micrantha Valerie Soza, Kevin Clark, et al. 2001-4-4 1125 Orange Seal Beach, U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  CAS-BOT-BC37125  Capsella bursa-pastoris Ira L. Wiggins 1966-2-5 20422 Orange Fairgrounds, Costa Mesa. Comment
  RSA697415  Capsella bursa-pastoris Snow 1929-2-16 3 Orange Santa Ana. Comment
  CAS-BOT-BC37592  Cardamine californica C. B. Wolf 1931-1-30 1826 Orange Santa Ana Mountains. Claymine Canyon. 304 Comment
  CAS-BOT-BC37594  Cardamine californica C. B. Wolf 1931-3-6 1851 Orange West slope of Santa Ana Mountains. Trabuco Canyon. Trabuco Camp Ground. 609 Comment
  IRVC1076  Cardamine californica E. Cowper 1965-3-1 Orange [Newport] Back Bay. Newport Beach Comment
  LA204284  Cardamine californica C. B. Wolf; 1931-3-6 1851 Orange Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts Comment
  LA204286  Cardamine californica O. A. Plunkett; 1939-2-18 sn Orange 15 mi. E of Capistrano Comment
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Nov 15 2013
  UC484232  Cardamine californica var. californica C. B. Wolf 1931-1-30 1826 Orange Claymine Canyon , Claymine Canyon (Santa Ana Mts.) 304 Comment
  RSA1442  Cardamine californica var. integrifolia J. T. Howell 1929-2-11 1226 Orange Claymine Canyon, Samta Ana Mts. 305 Comment
  POM187376  Cardaria chalepensis Ed Johnson s.n. Orange Westminster. 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
  IRVC22650  Carduus tenuiflorus H. Camp 1986-4-24 7 Orange Bell Canyon, 1.4km NW Visitor Center, Casper's Regional Park 126 Comment
  RSA788972  Carex barbarae Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49573 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR174023  Carex barbarae A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33009 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-BC118497  Carex praegracilis Helen D. Geis 1902-1-1 s.n. Orange Near Santa Ana Comment
  CAS-BOT-BC118506  Carex praegracilis Helen D. Geis 1902-4-1 567 Orange Ditch banks near Santa Ana Comment
  POM193572  Carex praegracilis Helen D. Geis 1902-1 505 Orange Orange County. Comment
  SEINET7572179 Image available Carex praegracilis Helen D. Geis 1902-1 505 Orange [no precise loc] Comment
  POM21633  Carex schottii F. W. Peirson 1924-2-9 4524 Orange Between Wintersberg and the sea. Comment
  RSA581445  Carex spissa Fred M. Roberts, Gordon Marsh 1989-5-12 4365 Orange Santa Ana Mountains: Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.0 kilometers WSW Laurel Springs. 436 Comment
  RSA759112  Carex spissa Robt. Allen, Reginald Durant 2008-9-28 s.n. Orange Laurel Spring, just below Harding Truck Trail. Survey Waypoint #85. Comment
  UCSB48106  Carex spissa Fritzke, S.; Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: Lower Hot Springs Canyon; Lazy W Road; 2.4 km. N by road; San Juan Guard Station; 1.4 km. NNW Juan Rancho Survey Mark 240 Comment
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Mar 18 2011
  RSA737489  Carex triquetra D. E. Bramlet 2008-5-9 4264 Orange Ridgeline between the upper two tributaries of Wier Cyn. 1.2km east of S. Serrano Ave & 1.3km west of Gypsum Cyn. 330 Comment
  UCSB52779  Carex tumulicola Boutin, F. 1967-4-23 Orange San Clemente Island: E side of island; next major drainageway and canyon SE of Lemon Tank; at seasonal pool Comment
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Dec 13 2020
  UCR220034  Carpobrotus chilensis Rebecca T. Vo 2010-6-1 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  JEPS42911  Carpobrotus edulis L. M. Booth 1932-8-5 1362 Orange Newport Bay. Comment
  CAS-BOT-BC281890  Carthamus lanatus T. C. Fuller 1962-6-7 8872 Orange Near the mouth of Brea Canyon, Union oil lease, ca 3 miles N of Brea Comment
  RSA707  Castilleja affinis J. T. Howell 1927-6-2 11 Orange Sandstone Ridge, Botany Garden, RSA. 152 Comment
  UC1032492  Castilleja affinis subsp. affinis A. Lewis Feb 1934 264 Orange Santa Ana Canyon; Corona Quad. 152 Comment
  RSA0127599  Castilleja exserta Fred M. Roberts 2016-3-25 8029 Orange San Joaquin Hills: Bommer Canyon, west slope near south end fo Nature Loop Trail, 0.1 km NW Cattle Camp and 1.6 km NE summit of Signal Peak. 146 Comment
  UC1287152  Castilleja exserta C. L. Hitchcock 1966-3-15 24134 Orange 0.5 mi e Brea Comment
  UC1552001  Castilleja exserta Lyman Benson 1946-4-27 12052 Orange Corona del Mar; Ocean Bluff 15 Comment
  RSA749523  Castilleja exserta subsp. exserta Fred M. Roberts 2008-4-8 6848 Orange Lomas de Santiago: Loma Ridge, Upper Dripping Springs Cyn., 1.0 km NE Bee Peak, Irvine Ranch Conservancy. 458 Comment
  UCSB47597  Castilleja exserta subsp. exserta Roberts, Fred 1980-5-3 Orange 0.1km NE Falcon Group Camp; Santa Ana Mtns 1012 Comment
  RSA632421  Castilleja foliolosa Valerie L. Soza, LeRoy Gross 1999-6-10 520 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1555 Comment
  SBBG104116  Castilleja foliolosa B. Pitzer, S. Hemstreet 1992-5-27 1953 Orange USFS Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd 762 Comment
  UC885188  Castilleja foliolosa I. W. Clokey 1932-3-1 5342 Orange Laguna Beach Comment
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Aug 31 2016
  UCSB27031  Castilleja foliolosa Daniel, Dick 1964-3-28 Orange 5.1 miles northwest of junction of Silverado Canyon and Santiago Canyon Roads; up Silverado Canyon Road, about 10 miles west of Irvine Lake; 17 miles by air east of Orange Comment
  SD245474  Castilleja minor subsp. spiralis Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49584 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
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Jun 16 2016
  UCR174192  Castilleja minor subsp. spiralis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33007 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
  UCR221459  Castilleja minor subsp. spiralis Dick Newell, Don Millar, Emily Sheehan 2010-8-3 30 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lakeside Rd. (dirt), 1/4 mile west of Black Star Canyon Rd. 259 Comment
  UCR103216  Caulanthus heterophyllus Scott D. White 1997-2-19 4695 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UC1925887  Ceanothus Donald G. Nelson 1935-7-9 222 Orange San Juan Canyon. Comment
  CAS-BOT-BC48490  Ceanothus crassifolius D. O. Burge 2007-3-22 805 b Orange Santa Ana Mountains, Cleveland National Forest, 2.3 road miles (3.7 km) from Hwy 74 on USFS Road 3S04, Comment
  RSA21485  Ceanothus crassifolius E. R. Johnson 1936-3-16 8313 Orange Rancho Santa Ana, Santa Ana Canyon. So. of Ranch Buildings 122 Comment
  RSA304748  Ceanothus crassifolius James R. Shevock 1971-2-6 1178 Orange Mojeska Cyn 396 Comment
  RSA733939  Ceanothus crassifolius R. H. McArthur 1934-2-10 s.n. Orange Santiago Canyon above Modjeska Comment
  RSA786781  Ceanothus crassifolius Doris Bowers 1971-4-19 1687 Orange Black Star Canyon Indian Site 762 Comment
  SD181362  Ceanothus crassifolius Paul Shirokawa 1998-5-15 37 Orange Cleveland National forset - Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Rd 960 Comment
  SEINET13945801 Image available Ceanothus crassifolius S. Lambert 1981-1 1957 Orange Cleveland Nat'l Forest, 19.7 mi E of hwy. 5 by hwy 74 at San Juan Trail, 2100 ft elev. 640 Comment
  RSA733936  Ceanothus divaricatus Keith E. Hoffmaster 1936-5-3 715 Orange Santa Ana Mts (Santiago Peak) Comment
  UC1070733  Ceanothus integerrimus A. Lewis 1934-5-1 420 Orange Trabuco Elsinore quad., Cleveland National Forest 1341 Comment
  UC718385  Ceanothus integerrimus P. C. Everett 1935-6-18 7214 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  RSA25843  Ceanothus leucodermis Carl B. Wolf 1941-8-15 11152 Orange W. slope of Santiago Truck Trail. 4.4 mi. below mai divide motorway. 1067 Comment
  UCSB47641  Ceanothus leucodermis Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail on fire break, 1.6km WNW Trabuco Peak, Santa Ana Mtns., 1295 Comment
  RSA21484  Ceanothus megacarpus E. R. Johnson 1936-3-16 8312 Orange Rancho Santa Ana, Santa Ana Canyon. So. of Ranch Buildings 122 Comment
  RSA468  Ceanothus megacarpus J. T. Howell 1927-7-24 468 Orange Claymine Canyon near Sierra Peak. 152 Comment
  UCR159779  Ceanothus megacarpus subsp. megacarpus Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh Comment
  RSA542585  Ceanothus megacarpus var. megacarpus Fred M. Roberts 1989-2-23 4188 Orange Aliso-Wood Canyon Regional Park: Niguel Hill above Aliso Canyon along the northern edge of Sea View Pk., 1.2km ENE Aliso Pk. 250 Comment
  SBBG4381  Ceanothus megacarpus var. megacarpus M. Van Rensselaer 1941-12-7 1748 Orange facing the sea and overlooking S Laguna, ca. 3 mi S of Laguna Beach Comment
  SBBG4382  Ceanothus megacarpus var. megacarpus M. Van Rensselaer 1941-12-7 1748 Orange facing the sea and overlooking S Laguna, ca. 3 mi S of Laguna Beach Comment
  SBBG45051  Ceanothus megacarpus var. megacarpus J. T. Howell 1927-6-26 228 Orange Claymine Cyn near Sierra Pk 701 Comment
  UC1070883  Ceanothus megacarpus var. megacarpus A. Lewis 1934-3-1 366 Orange 2.5 mi w Sierra Peak; Corona quad. 609 Comment
  RSA398910  Ceanothus oliganthus var. oliganthus Christopher Davidson 1977-5-18 5599 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  RSA488123  Ceanothus oliganthus var. sorediatus Fred M. Roberts, Karlin G. Marsh 1984-2-15 1186 Orange Caspers Regional Park, south rim of Lucas Canyon along Rancho Carrillo Rd., 4.2 km NE Visitor Center; 0.2 km NW Lucas Survey Marker. 420 Comment
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Sep 17 2014
  RSA748166  Ceanothus oliganthus var. sorediatus K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 7 Orange Cleveland National Forest, 2 mi. N of Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
  CLARK-A1528-3898  Ceanothus papillosus subsp. roweanus John C. Roos 1962-5-5 Orange Santa Ana Mountains Comment
  RSA399811  Ceanothus papillosus var. roweanus Albert J. Perkins 1917-4-21 s.n. Orange Santiago Peak. South side. Comment
  CHSC116480  Ceanothus papillosus var. roweanus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. Hydrothermally altered serpentine substrate with limited scrub growth. Comment
  CAS-BOT-BC53004  Ceanothus spinosus Le Roy Abrams 1901-6-16 1854 Orange Trabuco Canyon Comment
  OBI10341  Ceanothus spinosus Carl B. Wolf 1941-8-15 11151 Orange Santa Ana Mts, W slope Santiago Truck trl to Santiago Pk 1.2 mi above F.S. Gate 610 Comment
  RSA16580  Ceanothus spinosus Percy C. Everett 1935-6-19 7241 Orange Trabuco Canyon, 0.8mi below (W) forest service patrol station 488 Comment
  UCR174499  Ceanothus spinosus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33062 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
  SD254510  Cenchrus clandestinus D. E. Bramlet 2009-11-20 4416 Orange South Coast: San Diego Creek between Irvine and Newport Back Bay. 3 Comment
  RSA562805  Centaurea melitensis Steve Boyd, Timothy S. Ross 1992-5-20 7477 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building). 350 Comment
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Apr 29 2008
  UCR106276  Centaurea melitensis B. G. Pitzer, M. Georgiady 1997-4-5 3089 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
  UCR239619  Centaurea melitensis Fred M. Roberts 2012-4-24 7518 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  UCR80034  Centaurea melitensis Scott D. White 1992-10-1 953 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
  CAS-BOT-BC123546  Centromadia parryi subsp. australis David Daniels Keck 1933-9-29 2537 Orange Seal Beach. Comment
  CAS-BOT-BC288849  Centromadia parryi subsp. australis Louis C. Wheeler 1932-6-25 849 Orange 5 miles W Santa Ana 30 Comment
  SD133178  Centromadia parryi subsp. australis D. Bramlet 1990-11-3 2064 Orange West side upper Newport Back Bay, 50 meters northwest of the Delhi Channel. Comment
  UC89014  Centromadia parryi subsp. australis unknown Orange Westminster Comment
  UC897740  Centromadia parryi subsp. australis Louis C. Wheeler 1932-6-25 849 Orange 5 mi w Santa Ana 22 Comment
  RSA734966  Cercocarpus betuloides A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35304 Orange Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA785759  Cercocarpus betuloides Doris Bowers 1966-4-3 637 Orange Black Star Canyon 305 Comment
  UCR221892  Cercocarpus betuloides Dick Newell, Don Millar 2010-10-15 40 Orange South Coast, San Joaquin Hills, Laguna Wilderness parkm on the Willow Trail 220 Comment
  CAS-BOT-BC142122  Cercocarpus betuloides var. betuloides John Thomas Howell 1927-6-26 2612 Orange Claymine Canyon, n. Santa Ana Mts. 243 Comment
  CAS-BOT-BC142124  Cercocarpus betuloides var. betuloides E. R. Johnson 1929-4-11 1261 Orange Sierra Peak Trail, Santa Ana Mts. Comment
  CAS-BOT-BC142125  Cercocarpus betuloides var. betuloides Munz; Street; Williams 1919-5-3 2626 Orange Santa Ana River Canyon Comment
  CAS-BOT-BC279500  Chaenactis artemisiifolia L. R. Abrams 1901-6-15 1808 Orange Trabuco Canon [Canyon] Comment
  CAS-BOT-BC279501  Chaenactis artemisiifolia R. K. Brummitt 1998-5-23 19996 Orange San Juan Canyon, 22 km NE of San Juan Capistrano on Rte. 74 300 Comment
  UCR192114  Chaenactis artemisiifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35317 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR274177  Chaenactis artemisiifolia Dick Newell, Don Millar 2016-5-24 426 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Merkel Spur Trail at Limestone Ridge Road, 0.13 mile south of Cactus Canyon Road 417 Comment
  CAS-BOT-BC279499  Chaenactis artemisiifolia Steve Boyd; Tim Ross 1992-5-20 7454 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09) 457 Comment
  RSA562738  Chaenactis artemisiifolia Steve Boyd 1992-5-20 7454 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09), 305 Comment
  RSA749647  Chaenactis glabriuscula D. E. Bramlet 2008-5-9 4266 Orange Ridgeline between the upper two tributaries of Wier Cyn. 1.2km east of S. Serrano Ave & 1.3km west of Gypsum Cyn. 330 Comment
  LA203102  Chaenactis glabriuscula var. glabriuscula Lawrence M. Booth; 1932-5-18 1056 Orange Newport Bay Comment
  RSA638968  Chaenactis glabriuscula var. glabriuscula Valerie L. Soza, LeRoy Gross 1999-6-8 499 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  UC1543106  Chaenactis glabriuscula var. glabriuscula Donald G. Nelson 1935-4-14 281 Orange edge of dry mesa facing Newport Bay (and the ocean, along the main coast highway); Newport Beach Comment
  POM294107  Chaenactis glabriuscula var. megacephala Lyman Benson 1946-4-27 12053 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  IRVC29811  Chamaesyce albomarginata Laura D. Lyons, Mark A. Elvin 2006-9-23 425 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
  RSA542539  Chamaesyce polycarpa var. polycarpa Fred M. Roberts, Dar A. Roberts 1989-3-22 4221 Orange Aliso-Wood Canyons Regional Park: Wood Canyon, 3.6 km S Moulton Peak. 43 Comment
  RSA797479  Chamaesyce supina R. F. Thorne 1977-11-21 49992 Orange Santa Ana Mountains: San Juan Canyon about 2 miles above San Juan Fire Station Comment
  IRVC844  Chamomilla suaveolens E. McRae 1965-4-8 Orange Costa Mesa Comment
  IRVC26723  Chasmanthe aethiopica Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3164 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA685784  Cheilanthes newberryi H. H 1915-3-15 s.n. Orange Santiago Canyon 367 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
  CAS-BOT-BC426293  Chenopodium album Ira L. Wiggins 1966-5-25 20664 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton Comment
  RSA184151  Chenopodium album I. L. Wiggins 1965-10-25 20300 Orange Curbway on Dorothy Lane near intersection with Lincoln Avenue, Fullerton. Comment
  IRVC24288  Chenopodium ambrosioides Fred M. Roberts, G. A. Marsh 1985-10-26 2512 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  POM201965  Chenopodium berlandieri var. sinuatum L. M. Booth 1932-6-29 1228 Orange Newport Bay. Comment
  RSA234491  Chenopodium berlandieri var. sinuatum James Henrickson 1970-8-29 5304 Orange 3 miles NW of Huntington Beach; north end of Bolsa Chica Marsh near pasture. 0 Comment
  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
  POM201793  Chenopodium macrospermum var. farinosum L. M. Booth 1933-9-8 1390 Orange Anaheim Marsh. Comment
  IRVC22761  Chenopodium multifidum Karlin G. Marsh 1984-9-28 Orange Balboa Peninsula, collected near Balboa Pier in Balboa Pk., Newport Beach 0 Comment
  IRVC398  Chenopodium murale J. Morgan 1965-2-5 Orange Corona del Mar High School. Newport Beach Comment
  RSA751792  Chenopodium murale A. C. Sanders, Fred M. Roberts 2008-7-3 35686 Orange upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  UCR190993  Chenopodium murale A. C. Sanders, Fred M. Roberts 2008-4-22 35007 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  POM262154  Chenopodium murale L. M. Booth 1932-6-9 1175 Orange Santa Ana River, 1 mile from ocean. Comment
  CSUSB404  Chlorogalum pomeridianum Cesareo Perez 1971-5-18 Orange South Mesa Drive & Lemon Street, in Villa Park. Comment
  RSA260445  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 0.5 mile above La Vida Springs. 244 Comment
  RSA5925  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 0.5 mile above La Vida Springs. 244 Comment
  POM256711  Chorizanthe fimbriata W. Pequegnat 1940-6-12 s.n. Orange Los Puios Portrero. 915 Comment
  UCSB47592  Chorizanthe fimbriata var. fimbriata Roberts, Fred 1980-5-3 Orange On north side of Highway 74, 0.6 km. E San Juan Guard Station, San Juan Canyon, Santa Ana Mountains, 238 Comment
  UCR147627  Chorizanthe parryi var. fernandina Helen D. Geis 1902-3 541 Orange Coastal Plains & Basins; South Coastal Plain region, 'hills near Santa Ana Comment
  CAS-BOT-BC257199  Chorizanthe procumbens Clare B. Hardham 1962-4-4 8944 Orange Dana Point - (Beach) Comment
  RSA743372  Chorizanthe procumbens Fred M. Roberts 2008-4-2 6842 Orange Dana Point: Dana Point Headlands, CNLM Preserve south of NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 45 Comment
  CAS-BOT-BC255252  Chorizanthe staticoides Helen D. Geis 1902-1-1 542 Orange Santa Ana Comment
  CAS-BOT-BC255253  Chorizanthe staticoides H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  CAS-BOT-BC255254  Chorizanthe staticoides Agnes M. Bowman 1899-6-1 s.n. Orange Santiago Cr. Comment
  CAS-BOT-BC255255  Chorizanthe staticoides John Thomas Howell 1927-6-8 2461 Orange Southern Puente Hills in the Santa Ana Canyon 228 Comment
  POM293154  Chorizanthe staticoides Lyman Benson 1946-5-13 12094 Orange Corona del Mar, Pacfic Ocean drainage area 15 Comment
  RSA542532  Chorizanthe staticoides Fred M. Roberts 1988-5-13 3966 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  RSA698368  Chorizanthe staticoides Unspecified 1933-5-27 s.n. Orange San Joaquin Hills. Comment
  UCR277171  Chrysanthemoides monilifera subsp. monilifera R. E. Riefner Jr. 2012-2-22 12- 40 Orange South Coast, city of Laguna Beach, south of Goff Island, Montage Resort, Treasure Island Park area, west of Pacific Coast Hwy 7 Comment
  UCD130549  Cirsium arvense P. B. Kennedy 1924-2-13 s.n. Orange Huntington Beach District. Comment
  IRVC9096  Cirsium brevistylum C. A. Taylor 1966-5-18 66 -116 Orange Santa Ana Canyon, Old Rancho Santa Ana Botanic Garden site; full sun on flats and slopes. Chino Hills Comment
  RSA721121  Cirsium occidentale Anonymous s.n. Orange Lower Trabuco. Comment
  CLARK-A1528-1094  Cirsium occidentale Michelle Loef 1973-5-25 250573-2 Orange 91 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
  CAS-BOT-BC285584  Cirsium occidentale var. occidentale John Thomas Howell 1927-6-6 2447 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  POM202373  Cirsium occidentale var. occidentale L. M. Booth 1932-6-7 1165 Orange Newport Lagoon. Comment
  IRVC9095  Cirsium vulgare J. Turner 1966-3-9 35 Orange Warner Street. Huntington Beach Comment
  RSA458856  Clarkia bottae N. C. Cooper 1944-6-4 1347 Orange San Juan Canyon. 152 Comment
  UCR228790  Clarkia bottae Dick Newell, Don Millar 2011-5-24 159 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Haul Road 286 Comment
  RSA688833  Clarkia epilobioides Scott D. White, Amanda Duchardt 2003-4-10 9004 Orange Santa Ana Mtn Foothills. San Juan creek channel. Just N of Ortega Hwy and a few miles E of San Juan Capistrano. 61 Comment
  RSA610412  Clarkia purpurea subsp. quadrivulnera R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA458857  Clarkia purpurea subsp. viminea M. B. Dunkle 1938-6-23 5381 Orange San Juan Capistrano. Comment
  RSA0059921  Clarkia purpurea subsp. viminea L. R. Abrams 1910-6-15 1796 Orange Santiago Peak trail. Comment
  RSA708234  Clarkia rhomboidea Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6236 Orange Modjeska Peak, west slope along summit road, 0.15km by air W summit. 1613 Comment
  SD101082  Claytonia perfoliata subsp. mexicana John M. Miller 1978-3-18 709 Orange Santa Ana Mountains; San Juan Creek Canyon, 13.6 miles E of Hwy. 101 on Hwy. 74. 366 Comment
  OBI30216  Claytonia perfoliata subsp. perfoliata L. Fountain 1966-3-23 52 Orange Silverado Cyn at the end of the pavement Comment
  SEINET3821592 Image available Clematis ligusticifolia Lawrence M. Booth 1932-1 1290 Orange Anaheim Marsh Comment
  UCR237919  Clematis ligusticifolia Dick Newell, Judy Booth 2012-6-24 277 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 1.9 mi. NE of Maple Springs gate 817 Comment
  RSA386282  Clematis pauciflora M. B. Dunkle 1936-3-14 4701 Orange San Juan Canyon. Comment
  UCR209671  Clematis pauciflora Fred M. Roberts 2008-4-16 6904 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  RSA66687  Cleome isomeris F. W. Peirson 1924-2-10 4530 Orange southward from Corona del Mar. Comment
  RSA789221  Clinopodium chandleri Naomi S. Fraga, Duncan S. Bell 2009-5-11 2721 Orange Chiquita Trail 762 Comment
  UCR256937  Clinopodium chandleri Naomi Fraga, Duncan S. Bell 2009-5-11 2721 Orange Peninsular Range; Santa Ana Mountains, Chiquita Trail, Lion Canyon 762 Comment
  SEINET945698  Clitoria mariana Paul O. Schallert 1949-1 4870 Orange Near Maitland. Comment
  LA208484  Cneoridium dumosum B. Lower; 1954-4-3 Orange Dry hill behind Laguna Comment
  RSA699998  Collinsia bicolor L. C. Hull 1934-4-15 s.n. Orange Laguna Hills Comment
  UCR191230  Collinsia concolor A. C. Sanders, Fred M. Roberts 2008-4-22 35026 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UCSB48210  Collinsia heterophylla var. heterophylla Roberts, Fred 1981-5-3 Orange Hot Springs Canyon; 1.3km NNE San Juan Guard Station; Santa Ana Mtns 276 Comment
  CAS-BOT-BC402182  Comarostaphylis diversifolia subsp. diversifolia R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49607 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  IRVC23323  Conium maculatum Fred M. Roberts 1985-7-23 2078 Orange Irvine; San Diego Creek at Jeffrey Rd. bridge. Southern Coastal 35 Comment
  UCR186683  Conium maculatum T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1904 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  UCR97574  Conium maculatum B. G. Pitzer 1997-4-15 3130 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  POM295610  Conium maculatum Lyman Benson 1946-7-8 12105 Orange Corona del Mar. 15 Comment
  IRVC970  Convolvulus arvensis R. Hobson 1965-4-10 Orange Santa Ana Heights, 2431 Mesa Dr. Southern Coastal Comment
  OBI15328  Convolvulus arvensis Michael Ward 1970-8-22 v- 8 Orange Ca. 4 mi S of Seal Beach, NE of Pacific Coast hwy & Bolsa Chica St Pk at Bolsa Chica salt marsh Comment
  UCR267211  Convolvulus simulans Fred M. Roberts, Megan Lulow 2009-3-18 7136 Orange Santa Ana Mtns., LOMAS DE SANTIAGO: Loma Ridge, Lower Hicks Canyon, about 350 meters from south side of Haul Road, 1.9 km E Rattlesnake Cyn. Reservoir Dam and 2.1 km W Bee Peak 172 Comment
  RSA550006  Conyza bonariensis Scott D. White 1992-9-23 840 Orange Vicinity of Olinda, near city of Brea, immediately N of Carbon Cyn Rd & E of Placentia Ave.; ca. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  RSA748269  Conyza bonariensis A. C. Sanders, Fred M. Roberts 2008-6-17 35512 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  IRVC29717  Conyza coulteri Mark A. Elvin, Barry S. Nerhus 2006-11-4 5253 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA725965  Conyza floribunda R. E. Riefner 2003-12-13 03 -503 Orange South Coast: Los Alamitos, San Gabriel River, vicinity of Chestnut St. and Cerritos Ave. 11 Comment
  SEINET4676165  Cordylanthus rigidus A. C. Sanders, Fred M. Roberts 2008-7-16 35826 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail.; 0 290 Comment
  UCR230827  Cordylanthus rigidus Dick Newell, Don Millar, Shara Harris 2011-6-21 188 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 225 Comment
  UCD169163  Cordyline R. E. Riefner Jr. 2012-11-6 12- 532 Orange South Coast,City of Newport Beach, Newport Bay, North Star Beach, near Newport Aquatic Center, White Cliffs Drive/North Star Lane. 9 Comment
  POM356004  Coreopsis californica M. B. Dunkle 1935-3-3 4345 Orange San Juan Canyon. 457 Comment
  HSC5418  Corethrogyne filaginifolia J. W. Johnson 1961-2-19 Orange Newport Beach, marine terrace above upper Newport Bay. Comment
  RSA752895  Corethrogyne filaginifolia A. C. Sanders, Fred M. Roberts 2008-8-7 35970 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UCSB52401  Corethrogyne filaginifolia Roberts, Fred 1982-9-15 Orange Rancho Mission Viejo; Rte. 74, 6.6 km. by road ENE San Juan Capistrano; 0.9 km. Viejo Peak 93 Comment
Read comments
Jan 25 2020
  JEPS14133  Coriandrum sativum Alice King March 1908 Orange Anaheim Comment
  JEPS50151  Cornus sericea subsp. sericea Lawrence M. Booth 1932-7-19 1278 Orange Bolsas Creek Comment
  UCR68986  Cortaderia selloana A. C. Sanders 1990-10-6 10196 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  IRVC629  Cotula australis L. Burns 1965-4-30 Orange 19th Street. Costa Mesa Comment
  RSA731928  Cotula australis Fred M. Roberts, Sandra Leatherman 2007-11-27 6682 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA696050  Cotula australis Kenneth Beard 1934-03 s.n. Orange Beneath tree on High School campus. Comment
  UCD130888  Cotula australis Ira L. Wiggins 1966-2-18 20451 Orange Orange grove west side of State College Blvd. opposite Electra Way, Fullerton. Comment
  CAS-BOT-BC291359  Cotula coronopifolia L. Street 1917-5-12 1928 Orange San Juan Capistrano Comment
  SD227735  Cotula coronopifolia Scott D. White, Brian Leatherman 1997-6-12 5335 Orange Santa Ana Mtn. foothills. East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca 2 to 4 mi E of I-15 / Hwy 74 jtn. 45 Comment
  RSA728656  Cotula hispida R. E. Riefner 2006-2-12 06 -26 Orange City of San Clemente, N ca. 0.5 mi. along the beach from Ave. Del Mar/ San Clemente area. 3 Comment
  RSA17588  Cotyledon orbiculata C. B. Wolf 1936-7-8 8099 Orange Coast Hwy, Western end of Newport Bay. 9 Comment
  RSA0096944  Crassula connata Scott D. White 1998-3-24 6234 Orange University of California, Irvine Campus: Site of proposed Research Park. Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 36 Comment
  RSA699758  Crassula connata Fred M. Roberts, D. E. Bramlet 2003-5-15 5867 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Cristianitos Cyn., 1.68km SW Gato Gate and .24km NW of SDG&E substation. 116 Comment
  RSA751982  Crassula connata Fred M. Roberts 2008-3-27 6803 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  UC1543003  Crassula connata Donald G. Nelson 1935-4-14 272 Orange between ocean and bay Newport Beach (in front of Pacific Electric Railway Station) Comment
  UC1543005  Crassula connata Donald G. Nelson 1935-3-23 178 Orange just s. of <Orange thorpe> Ave. E. Fullerton Comment
  SEINET239007  Cressa truxillensis Unknown 1965-7-7 Orange Tustin township near Peters Canyon Channel E of Santa Ana Marine Corps Air Station (Tustin 7.5' Q.) 61 Comment
  UC219257  Crocanthemum scoparium var. vulgare Munz and Johnston 1922-5-18 5307 Orange Santa Ana River Canyon, in a side canyon Santa Ana River Canyon 274 Comment
  RSA0073651  Croton californicus Fred M. Roberts 2010-3-12 7185 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
  RSA748257  Croton californicus A. C. Sanders, Fred M. Roberts 2008-6-17 35518 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCSB52909  Croton setiger Roberts, Jr., Fred 1984-8-14 Orange Santa Ana Mtns.; Chiquito Basin Trail, ridge between Chiquito Basin and Lion Canyon, 2.6 km. SSE Los Pinos Peak; 1.3 km. SSW Blue Jay Campground 885 Comment
  RSA713393  Crypsis schoenoides R. E. Riefner 2005-10-5 5 -706 Orange City of Yorba Linda, Santa Ana River bottom, N flood plain, near Yorba Linda Regional Park. 98 Comment
  UCR150922  Cryptantha clevelandii Valerie Soza, LeRoy Gross 1999-6-7 479 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
  IRVC15159  Cryptantha intermedia C. Thompson 1965-2-28 Orange Corona Del Mar: Corona Highlands Southern Coastal Comment
  IRVC255  Cryptantha intermedia C. Hinesly Orange Trabuco Canyon Santa Ana Mountains Comment
  RSA678721  Cryptantha intermedia Fred M. Roberts, Robert Allen, Carol Roberts 2003-5-11 s.n. Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  RSA699343  Cryptantha intermedia Anonymous s.n. Orange Laguna Comment
  RSA731998  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-4-22 35057 Orange Penisular Range; 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 mi. WSW of Silverado 493 Comment
  UCR211967  Cryptantha intermedia Dick Newell, Don Millar 2010-2-23 002 Orange South Coast, Serrano Ridge, 3 mi west of Laguna Hills, 0.67 mi west of Languna Canyon Road, east of Shady Canyon 244 Comment
  SD87710  Cryptantha intermedia var. johnstonii F. W. Peirson 1924-5-31 Orange 5 miles south of Laguna Comment
  SEINET3152280  Cryptantha micrantha H. M. Hall 1906-7-26 7588 Orange Upper Santa Canyon Comment
  RSA0127600  Cryptantha microstachys Fred M. Roberts 2016-3-25 8030 Orange San Joaquin Hills: Bommer Canyon, west slope near south end fo Nature Loop Trail, 0.1 km NW Cattle Camp and 1.6 km NE summit of Signal Peak. 146 Comment
  RSA550608  Cryptantha microstachys Fred M. Roberts, Carol A. Roberts 1989-4-20 4305 Orange Santa Ana Mtns: Upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5km SE Los Pinos Peak. 980 Comment
  RSA732272  Cryptantha microstachys A. C. Sanders 2008-4-29 35127 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff s training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  UC1178547  Cryptantha microstachys Peter Kamb 1948-6-19 1094 Orange Holy Jim Canyon Santa Ana Mts. 609 Comment
  UCR191349  Cryptantha microstachys A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34630 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
  IRVC16577  Cryptantha microstachys Gordon A. Marsh 1977-3-12 Orange [San Juan Canyon], Ortega Hwy, gully 2.6mi E San Juan Fire Station. Santa Ana Mountains Comment
  IRVC18321  Cucurbita foetidissima J. W. Johnson 1976-8-2 Orange Upper [Newport] Bay. Newport Beach Comment
  JEPS42640  Cucurbita foetidissima L. M. Booth 1932-6-29 1227 Orange Newport Bay Comment
  RSA542537  Cucurbita foetidissima Fred M. Roberts 1988-5-25 3975 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker. 91 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
  RSA7201  Cupressus forbesii B. D. Stark 1933-3-17 4532 -C Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  RSA7202  Cupressus forbesii B. D. Stark 1933-3-17 4532 -B Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  RSA730999  Cupressus forbesii Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6502 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  UC1281345  Cupressus forbesii H. E. McMinn 1935-6-22 3926 Orange at head Clay Mine Canyon (n end of Santa Ana Mts.); Santa Ana Mts., Clay Mine Canyon Comment
  RSA0020321  Cupressus forbesii T. Keeney 1977-10-27 1100 Orange NW slope of Sierra Peak. Near Gypsum Canyon. 61 Comment
  RSA0059004  Cupressus forbesii R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49671 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). [Locality information from field labels; newspaper specifies Gypsum Cyn, N slope of Sierra Pk.] 457 Comment
  SEINET10531085  Cupressus forbesii Carl B. Wolf 1935-1-2 Wolf 2320 Orange Santa Ana Mts. Slopes of Sierra Peak W of Claymine Canyon along road to peak. Upper Sonoran:- Adenostoma, Cypress. Open N.W. slope, reddish sandstone. 670 Comment
  NY16673  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6278 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  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
  SEINET905825  Cuscuta R. J. Barr 1967-1 67 -176 Orange East of el Toro, Santa Ana Mountains. 182 Comment
  RSA658213  Cuscuta californica T. A. Daubert 1991-5-26 670 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. Comment
  UC1608264  Cuscuta californica Steve Boyd and Tim Ross 1992-5-19 7420 Orange San Mateo Canyon Wilderness Area, w edge of the wilderness along Lucas Canyon Trail from access roadd to Rancho Carrillo (7S06) n into Aliso Canyon Southern Santa Ana Mountains 365 Comment
  UCR193052  Cuscuta californica A. C. Sanders, Mitch Provance 2008-5-20 35405 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA232068  Cuscuta ceanothi Anonymous 1972-8-20 622 Orange Along Silverado Canyon Rd. c. 2 mi. E of jct. with Santiago Canyon Rd. Comment
  RSA797476  Cuscuta ceanothi R. F. Thorne 1977-11-21 49989 Orange Santa Ana Mountains: San Juan Canyon about 2 miles above San Juan Fire Station Comment
  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
  CDA25796  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35320 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, along fire line/bulldozer cut, c. 1.5 miles east of Walnut Canyon Reservoir. Comment
  SD43529  Cuscuta subinclusa Philip A. Munz 1946-10-2 11555 Orange Santa Ana River bottom, Rancho Santa Ana. Comment
  UC1595748  Cuscuta subinclusa G. D. Price Aug 1967 41893 Orange Trabuco Canyon Santa Ana Mts. Comment
  UC536956  Cuscuta subinclusa Lawrence M. Booth 1932-7-25 1316 Orange Santa Ana River Comment
  JEPS59790  Cycloloma atriplicifolium Lawrence M. Booth 1932-7-30 1343 Orange near Huntington Beach; Santa Ana River channel Comment
  SEINET8728687 Image available Cycloloma atriplicifolium Peter H. Raven 1961-1 16848 Orange Santa Ana River bed at Anaheim Street crossing, Anaheim 61 Comment
  JEPS66891  Cylindropuntia prolifera L. M. Booth 1933-10-24 Orange Newport Comment
  IRVC14840  Cynara cardunculus B. Newman 1965-3-14 Orange Dana Point Comment
  UCR48039  Cynara cardunculus Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  RSA30240  Cynara cardunculus subsp. flavescens Elisabeth Norland 1942-8-12 11296 Orange 2 miles SW of Costa Mesa near jct of 17th Street and Hwy 101. Comment
  CDA22562  Cynodon dactylon J. B. Anderson 1966-4-18 6000 Orange Mac Arthur Boulevard near Red Hill Road. 0 Comment
  CDA23574  Cynodon dactylon L. D. Lyons, Mark A. Elvin 2006-9-23 422 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  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
  UCSC000021  Cynodon dactylon I. J. Condit 2008-7-20 s.n. Orange Los Alamitos Comment
  SD253871  Cyperus Jim Riley 2013-10-15 118 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UCR157711  Cyperus Adrian Wolf 1998-5-15 270 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  RSA542339  Cyperus difformis J. West 1990-9-4 s.n. Orange Irvine: University of California campus. 16 Comment
  SEINET11750782  Cyperus eragrostis S. A. Thompson, Rawlins, J. E. 1988-1 5256 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  POM12447  Cyperus erythrorhizos Phillip A. Munz 1922-9-2 6359 -A Orange Laguna Lakes. 46 Comment
  RSA365080  Cyperus erythrorhizos Anstruther Davidson 1917-08 3267 Orange Near Laguna Beach. Comment
  CAS-BOT-BC114319  Cyperus esculentus LeRoy Abrams 4102 Orange Peat Sands, Santa Ana. Comment
  POM210903  Cyperus esculentus L. M. Booth 1932-7-25 1310 Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  RSA5507  Cyperus esculentus Carl B. Wolf 1932-6-28 3761 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  UCSB54127  Cyperus esculentus Marsh, K. 1986-10-10 Orange Yorba Linda; Santa Ana Canyon, north side of the Santa Ana River, Featherly Park 115 Comment
  RSA5913  Cyperus laevigatus Carl B. Wolf 1932-7-2 3814 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 21 Comment
  RSA5915  Cyperus laevigatus Carl B. Wolf 1932-7-2 3812 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 21 Comment
  POM201904  Cyperus niger var. castaneus L. M. Booth 1932-7-19 1287 Orange Bolsas Marsh. Comment
  RSA800673  Cyperus odoratus Justin M. Wood 2010-9-29 2748 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  CAS-BOT-BC227846  Cyrtomium falcatum R. E. Riefner, Jr. 2011-7-1 11 -83 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1 mi from Poppy Avenue 1 Comment
  CAS-BOT-BC538088  Cyrtomium falcatum R. E. Riefner, Jr. 2012-2-2 12 -19 Orange City of Dana Point, cliff and rocky intertidal area N 0.2 mi of Salt Creek lagoon 8 Comment
  SEINET13203173 Image available Cyrtomium falcatum R. E. Riefner Jr. 2012-1 12 -19 Orange City of Dana Point, cliff and rocky intertidal area N 0.2 mi of Salt Creek lagoon. 9 Comment
  RSA539378  Dactylis glomerata Fred M. Roberts 1988-6-9 4080 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  CAS-BOT-BC402185  Datisca glomerata R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49618 Orange Santa Ana Mountains: Bluffs above San Juan Creek, about 1 mile above San Juan Fire Station. Comment
  POM201713  Datura stramonium L. M. Booth 1932-7-30 1345 Orange Santa Ana River Comment
  RSA33529  Datura wrightii N. C. Cooper 1942-11-9 886 Orange Balboa. Comment
  RSA743455  Datura wrightii Fred M. Roberts 2008-7-10 7075 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UC884536  Datura wrightii E. Lloyd 1933-5-13 Orange Laguna Beach Comment
  UCR192977  Datura wrightii A. C. Sanders, Fred M. Roberts 2008-6-17 35465 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  POM201711  Datura wrightii L. M. Booth 1932-7-30 1337 Orange Santa Ana River, 2 miles from ocean Comment
  RSA470786  Daucus pusillus M. B. Dunkle 1933-4-9 3281 Orange Dana Point Comment
  RSA743377  Daucus pusillus Fred M. Roberts 2008-4-9 6857 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 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
  UCR100443  Daucus pusillus B. G. Pitzer 1996-4-30 2780 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  IRVC29253  Deinandra fasciculata Kay Stockwell 1999-7-13 s.n. Orange Cannon Road (extension of Imperial Hwy) at Goldenrod St. Peralta Hills 152 Comment
  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
  UCR252708  Deinandra fasciculata R. E. Riefner Jr. 2014-6-3 14- 145 Orange City of Laguna Beach, Moulton Meadows, NE 0.1 mi. from Del Mar Ave. and Balboa Ave. along Mentally Sensitive Trail 266 Comment
  RSA724054  Deinandra paniculata R. E. Riefner 2003-8-31 03 -337 Orange San Clemente State Beach, mima mound field in SW corner of park. 27 Comment
  CAS-BOT-BC9090  Delphinium cardinale Carl B. Wolf 1932-7-2 3821 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA3193B  Delphinium cardinale B. D. Stark 1931-6-6 s.n. Orange Rancho Ranta Ana. Comment
  RSA16419  Delphinium parryi Percy C. Everett 1935-5-19 6871 Orange Santa Ana Mts, Baker Canyon, W Ladd Truck Trail 305 Comment
  RSA48922  Delphinium parryi P. A. Munz 1949-5-26 13381 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA698564  Delphinium parryi Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  UC484251  Delphinium patens subsp. hepaticoideum C. B. Wolf 1931-3-6 1856 Orange 1/2 mi below Trabuco Camp Grounds (w slope of mts); Santa Ana Mts., Trabuco Canyon 609 Comment
  RSA171106  Dendromecon rigida subsp. rigida Robert F. Thorne 1963-7-26 32833 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA171107  Dendromecon rigida subsp. rigida Robert F. Thorne 1963-7-26 32833 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA697421  Dentaria integrifolia Pomeroy 1929-2-10 62 Orange Black Star Canyon. Comment
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Feb 16 2013
  RSA171110  Dicentra ochroleuca Robert F. Thorne 1963-7-26 32823 Orange Trabuco District, Santa Ana Mts, Cleveland National Forest Comment
  RSA734281  Dichelostemma capitatum A. C. Sanders, Linda Farley, Fred M. Roberts, D. Bramlet 2008-4-1 34644 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA0127418  Dichelostemma capitatum subsp. capitatum Fred M. Roberts 2016-3-17 8013 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  RSA122  Dichelostemma capitatum subsp. capitatum J. T. Howell 1928-2-7 812 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA33586  Dichelostemma capitatum subsp. capitatum N. C. Cooper 1944-6-4 1363 Orange Elsinore Mountain. 1067 Comment
  RSA698093  Dichelostemma capitatum subsp. capitatum Calvert Norland 1929-3-4 39 Orange Orange Co. Park Comment
  RSA165174  Dichelostemma capitatum subsp. capitatum Mark Parratt 1962-4-11 140 Orange Beach head at Corona del Mar, Santa Ana Mt. Range Comment
  RSA208914  Dichelostemma capitatum subsp. capitatum Lee W. Lenz 1965-4-6 24585 a Orange Bluff above ocean, Dana Point. 30 Comment
  RSA573300  Dichondra micrantha Steve Boyd, Timothy S. Ross, Bob Boyd 1994-9-14 8357 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucus Canyon Trail crossing near old mining camp. 299 Comment
  RSA0012746  Dichondra occidentalis Fred M. Roberts 2012-5-10 7571 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  RSA184181  Digitaria sanguinalis I. L. Wiggins 1965-9-25 20252 Orange Fullerton. Comment
  RSA0019266  Dimorphotheca ecklonis Fred M. Roberts 2008-10-9 7122 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
  RSA0019267  Dimorphotheca ecklonis Fred M. Roberts, Sandra Leatherman, Jennifer Pareti 2009-4-14 7149 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  UCR215301  Dimorphotheca sinuata Fred M. Roberts 2008-4-22 6924 Orange Lomas de Santiago, Loma Ridge, upper Hicks Canyon, along Haul Road, 0.8 km WNW and 3.2 km east of Rattlesnake Reservoir Dam 302 Comment
  RSA0045521  Diplacus aurantiacus Jeanne Paxton 1934-4-21 s.n. Orange Modjeska Canyon. PR8. Comment
  CAS-BOT-BC151044  Diplacus brevipes John Thomas Howell 1927-6-5 2429 Orange Southern Puente Hills in the Santa Ana [Canon] Canyon 152 Comment
  SEINET219137  Diplacus brevipes T. Mosquin, P. H. Raven 1962-1 4277 Orange Silverado Canyon; Santa Ana Mts 701 Comment
  CAS-BOT-BC43548  Diplotaxis muralis Ira L. Wiggins 1965-10-25 20302 Orange Along curb way on Dorothy Lane near corner of Lincoln Avenue, Fullerton. Comment
  UCR207555  Distichlis spicata O. F. Clarke 2004-11-23 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCR107856  Dodecatheon clevelandii Scott D. White, Brian Leatherman 1998-1-26 6063 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  CAS-BOT-BC41691  Draba cuneifolia var. sonorae Helen D. Geis 1902-1-1 529 Orange Santiago Creek. Comment
  UCSB47596  Drymocallis glandulosa var. reflexa Roberts, Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon: below Rte. 74, 2.5km by road ENE San Juan Guard Station; 0.5km WSW Bm 1100 288 Comment
  IRVC22501  Dryopteris arguta Fred M. Roberts 1985-4-30 1673 Orange Laguna Beach: Temple Hill; at margin of "Dripping Springs Canyon"; 0.4km NNE Top of the World School. Southern Coastal 255 Comment
  POM179748  Dryopteris arguta Marcus E. Jones 1931-3-23 s.n. Orange Laguna Comment
  RSA311324  Dryopteris arguta R. F. Thorne 1963-7-26 32847 Orange Near Beek's Spring; Tin Mine Canyon; Trabuco District, Santa Ana Mountains, Cleveland National Forest. 716 Comment
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Apr 25 2011
  SEINET9625424 Image available Dryopteris arguta M. D. Windham 1998-3-31 98 -091 Orange Along tributary of Hot Spring Canyon in the Santa Ana Mts. ca. 3.01 km SE of Crow Spring. Cleveland N.F. Canada Gobernadora Quad ( 7 1/2 min. ). 320 Comment
  UCR174212  Dryopteris arguta A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33039 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA791466  Dryopteris arguta Keith E. Hoffmaster 1928-5-29 36 Orange San Onofre. Comment
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Nov 19 2013
  RSA423498A  Dudleya cymosa F. R. Fosberg 1921-6-21 748 Orange Silverado Canyon, Santa Ana Mts. Comment
  UCR218179  Dudleya cymosa Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2222 Orange Peninsular Range; Santa Ana Mtns., north end of the mountains above Green River Golf Course, very near the Riverside Co. line 540 Comment
  CAS-BOT-BC428263  Dudleya edulis Reid Moran 1949-5-28 3257 Orange Aliso Canyon, Laguna Beach Comment
  RSA48065  Dudleya edulis I. M. Johnston 1924-7-10 s.n. Orange 1/2 mile S mouth Aliso Canyon. Comment
  CAS-BOT-BC411409  Dudleya lanceolata Reid Moran 1951-6-22 3495 Orange Aliso Canyon, Laguna Beach Comment
  IRVC25461  Dudleya lanceolata Fred M. Roberts 1987-4-21 3386 Orange Aliso Creek, Aliso Creek Bike Trail, 3.0km ENE Moulton Peak, Aliso Viejo 73 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
  UC933285  Dudleya lanceolata Reid Moran 1950-5-12 3386 Orange Newport Bluffs Comment
  JEPS50031  Dudleya multicaulis Frank W. Peirson 3071 Orange Santa Ana Mountains Santa Ana Canyon; , Santa Ana Canyon 121 Comment
  RSA542536  Dudleya multicaulis Fred M. Roberts, Kathy Keane 1988-5-25 4000 Orange Rancho Mission Viejo: Lower Canada Gobernadora, ca. 2.4 kn SW Cliff Survey Marker. 110 Comment
  RSA550604  Dudleya multicaulis Fred M. Roberts 1989-4-25 4309 Orange Santa Ana Mountains: East Rim of Blind Canyon 8.5 kilometers SW Sierra Peak, c. 1.4 kilometer N Irvine Lake spillway. 366 Comment
  RSA587888  Dudleya multicaulis Fred M. Roberts 1990-5-7 4611 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 kilometers NE Clemente Survey Marker. 152 Comment
  RSA594810  Dudleya multicaulis Fred M. Roberts, Edna Rey, Kay Stockwell 1993-5-6 4879 Orange Orange Park Acres, Glen Albyn Lane, ca. 0.7 km by road E Santiago Blvd. 0.3 km NW Bauer Survey Marker. 168 Comment
  RSA682920  Dudleya multicaulis Scott D. White, Amanda Duchardt 2003-5-1 9148 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  UC933212  Dudleya multicaulis Reid Moran 1950-4-24 3387 Orange 0.4 mi above El Toro road junction with Laguna Canyon road (s of El Toro road, Laguna Canyon); Laguna Canyon 91 Comment
  UC971741  Dudleya multicaulis L. M. Booth 1932-5-18 1054 Orange Newport Bay Comment
  RSA176277  Dudleya pulverulenta R. F. Thorne 1963-7-26 32845 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mts. Cleveland Natl Forest. Comment
  UCR174216  Dudleya pulverulenta A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33028 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
  UCSB50638  Dudleya pulverulenta Roberts, Fred 1982-7-8 Orange Niguel Hills; Niguel Hill, above Pacific Island Road, 1.4 km. ESE Aliso Peak; 2.6 km. SSW Alicia Fire Station 205 Comment
  UC905134  Dudleya stolonifera R. V. Moran 1949-7-2 3286 Orange 1.5 mi above canyon mouth (1.7 mi below Toro Rd junction); Laguna Canyon Comment
  RSA697178  Dudleya variegata Gray s.n. Orange Panorama Heights. Comment
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Jan 10 2015
  RSA715245  Dudleya viscida A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33053 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
  UC1015403  Dudleya viscida Reid Moran 1931-1 5246 Orange San Juan Hot Springs Comment
  UCR281507  Dysphania pumilio Mitch Provance, Jeremiah George 2017-3-20 317- 103 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  CAS-BOT-BC197028  Echinochloa colona Ira L. Wiggins 1965-11-5 20320 Orange Near corner or Dowling Street and Crowther Avenue, 1/2 mile S of Placentia Comment
  RSA731754  Echinochloa colona Fred M. Roberts 2007-11-9 6651 Orange San Juan Canyon along San Juan Creek, about 0.6 km E San Diego FWY. 24 Comment
  UCR219856  Echinochloa colona Fred M. Roberts 2008-6-3 7031 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, East Fork Rattlesnake Canyon, c. 2.6 km NE Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 225 Comment
  RSA6068  Echinochloa crus-galli C. B. Wolf 1932-6-13 3720 Orange Fullerton, Rose Drive 53 Comment
  UCR240255  Echinochloa crus-pavonis R. E. Riefner Jr. 2006-9-16 s.n. Orange Yorba Linda, north of Chapman Ave. c. 1 mile along floodplain of Santa Ana River 98 Comment
  CAS-BOT-BC445606  Echinodorus berteroi R. E. Riefner 2000-8-21 20 -728 Orange Santa Ana Mtns.: Irvine Lake [Santiago Reservoir], first cove east of the dam. 238 Comment
  RSA443824  Echinodorus berteroi Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel, just N of Warner St. bridge crossing, (No. C05) Comment
  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
  RSA528090  Echium candicans A. C. Sanders 1990-10-6 10183 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  RSA688978  Ehrharta calycina Fred M. Roberts, David E. Bramlet 2003-4-10 5636 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
  SD156762  Ehrharta calycina Unknown 1940-4-19 Orange San Clemente Comment
  RSA799624  Eleocharis acicularis Justin M. Wood 2011-4-12 3664 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA86  Eleocharis geniculata J. T. Howell 1927-7-18 422 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UC306105  Eleocharis macrostachya D. L. Crawford 1916-3-10 727 Orange Santa Ana River Comment
  POM202156  Eleocharis palustris L. M. Booth 1932-5-15 1202 Orange Costa Mesa. Comment
  RSA665951  Eleocharis palustris Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5422 Orange Rancho Mission Viejo: South of San Juan Creek, 0.4km ESE Median Rancho Survey Marker. PCR Vernal Pool 7. 238 Comment
  RSA685930  Eleocharis palustris Fred M. Roberts, David E. Bramlet 2003-3-27 5613 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, western slopes of Chistianitos Canyon, 0.8km N Sycamore Gate 0.15km W Cristianitos Road; (San Clemente). 139 Comment
  RSA83  Eleocharis palustris J. T. Howell 1927-6-30 238 Orange Bryant Ranch near Long Beach. 15 Comment
  UCR188897  Eleocharis parvula Robert DeRuff 1985-1 22 Orange Southern Coast, Newport Beach, Upper Newport Bay at mouth of Delhi Ditch near end of Del Mar Drive 4 Comment
  RSA752648  Eleocharis radicans A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33024 Orange San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 366 Comment
  UCR266424  Eleusine coracana D. E. Bramlet 2009-11-20 4419 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  RSA746527  Eleusine coracana subsp. africana R. E. Riefner Jr. 2008-12-28 8 -391 Orange City of Irvine, San Diego Creek at Alton Pkwy. 48 Comment
  RSA542551  Eleusine indica Fred M. Roberts 1987-8-19 3587 Orange Santa Ana River: adjacent to Fountain Valley, Harbor Bridge. 13 Comment
  UCR193540  Elymus condensatus A. C. Sanders, Fred M. Roberts 2008-7-3 35666 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR92755  Elymus condensatus F. M. Reed 1928-1 6002 Orange Arch Beach, near South Laguna 15 Comment
  UC537289  Elymus glaucus Lawrence M. Booth 1932-6-7 1156 Orange Newport Lagoon; Sidehill Comment
  UCR215297  Elymus glaucus var. glaucus Fred M. Roberts 2008-5-7 6940 Orange Lomas de Santiago, Limestone Ridge between Dripping Spring and Limestone Canyon, 3.5 km NW of Bolero Lookout and 1.7 km east of Bee Peak. Irvine Ranch Conservancy 481 Comment
  CAS-BOT-BC234137  Elymus multisetus L. R. Abrams 1901-6-1 1823 Orange Santiago Pk trail Comment
  UCR193379  Elymus triticoides A. C. Sanders, Mitch Provance 2008-5-20 35396 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
  RSA39343  Emex spinosa E. L. Paddock 1943-5-26 12740 Orange Frank Anderson grove, Manchester, 1/8 mile south of Midway Drive, Anaheim. 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
  POM202371  Encelia californica L. M. Booth 1932-5-12 1029 Orange Newport Bay. Comment
  POM294120  Encelia californica Lyman Benson 1946-4-27 12058 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  RSA650815  Encelia californica Daniel Truong 1991-5-13 31 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  RSA695627  Encelia californica Keith E. Hoffmaster 1927-4-5 s.n. Orange Near Newport, Santa Ana Mountains Comment
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Aug 27 2011
  UC494726  Encelia californica Philip A. Munz 1932-3-29 12185 Orange Costa Mesa Costa Mesa (sea bluffs) Comment
  UCSB12532  Encelia californica Whittington, M. 1962-4-20 Orange South side Newport Back Bay about 0.5 miles south of the salt works, Newport Comment
  UCR241044  Epilobium brachycarpum Robert DeRuff 2010-9-2 482 B Orange South Coast, Upper Newport Bay, Back Bay Dr. at San Joaquin Hills Rd. 4 Comment
  CAS-BOT-BC166349  Epilobium canum subsp. canum John Thomas Howell 1927-7-28 2868 Orange Hills on n. side of Santa Ana [Canon] Canyon 182 Comment
  RSA262109  Epilobium canum subsp. mexicanum H. A. Zuill 1966-7-1 269 Orange Trabuco Canyon. Comment
  UCR240070  Epilobium ciliatum Dick Newell, Judy Booth 2012-9-26 290 Orange South Coast, Newport Beach, Back Bay Drive at the Salt Dike 3 Comment
  RSA754075  Epipactis gigantea A. C. Sanders, Fred M. Roberts 2008-7-16 35844 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UC536935  Epipactis gigantea Lawrence M. Booth 1932-6-4 1150 Orange Newport Lagoon; base of hill Comment
  UCR174229  Equisetum arvense A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33038 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
  IRVC21384  Equisetum laevigatum A. S. Boughey 1968-7-9 406 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges 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
  UCD62942  Eragrostis cilianensis Beecher Crampton 1971-6-9 8723 Orange UC South Coast Field Station, east of Irvine. Comment
  POM298879  Eragrostis mexicana subsp. virescens Frank W. Gould 1944-6-25 2362 Orange Tournat Ranch, Garden Grove. Comment
  UC2042144  Eragrostis mexicana subsp. virescens R. F. Thorne with E. W. Lathrop, W. Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  SD245210  Eragrostis mexicana subsp. virescens R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  UCD33017  Eragrostis pectinacea Beecher Crampton 1965-10-27 7583 Orange Orange County, UC - South Coast F.S.. Comment
  CAS-BOT-BC284066  Eragrostis pectinacea var. pectinacea Tim Hartz 1990-11-19 s.n. Orange Irvine, U.C. South Coast Field Station near the U.C. Irvine campus Comment
  SEINET7067527  Eremocarpus setiger A. G. Vestal 1947-6-12 s.n. Orange Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 447562mE, 3725206mN. Comment
  RSA170439  Eremocarpus setiger J. D. Olmsted 1959-8-26 831 Orange 100 yards northeast of center of Hidden Ranch by pump along Black Star Canyon Road. N end of Santa Ana Mountains 671 Comment
  UC23530 Image available Eriastrum densifolium subsp. austromontanum C. W. Hamlin 1896-1 50 Orange Buena Park Comment
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Nov 20 2013
  SEINET7909393  Eriastrum eremicum C. Knight 1967-1 Orange San Juan Capistramo 610 Comment
  JEPS9642  Eriastrum sapphirinum A. G. Vestal 1947-7-12 Orange Tributary of Trabuco Creek Comment
  UCR193057  Eriastrum sapphirinum A. C. Sanders, Fred M. Roberts 2008-6-17 35505 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UCR237929  Eriastrum sapphirinum Dick Newell, Don Millar 2012-6-5 272 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Ridge Rd. at Markel Spur 435 Comment
  UCR208079  Eriastrum sapphirinum subsp. dasyanthum M. B. Dunkle 1938-6-23 5380 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon Comment
  IRVC763  Ericameria linearifolia D. Christy 1965-5-12 Orange Corona del Mar, Begonia St. Newport Beach Comment
  POM257106  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA0126613  Ericameria palmeri var. pachylepis Fred M. Roberts 2012-4-27 7537 Orange Lomas de Santiago: Loma Ridge, west of SR 241, tributary to Las Flores Cyn., near East Loma Ridge Road, 1.9 km SW Irvine Lake Park Campground & 1.2 km ESE Orange Co. Emergency Operations Center (Hill 1311). 350 Comment
  IRVC18682  Ericameria parishii var. parishii Karlin G. Marsh 1981-5-2 Orange N slope of Bald Peak. Santa Ana Mountains Comment
  UCR80036  Erigeron canadensis Scott D. White 1992-9-29 863 Orange Vicinity of City of Brea, immediately north of Carbon Canyon Road and east of Placentia Avenue, +- 1 mi (airline) SSE of Tonner Canyon 183 Comment
  SDSU3943  Erigeron foliosus D. F. Howe 1976-6-4 4905 Orange Trabuco Canyon, Santa Ana Mts. 305 Comment
  UCR188939  Eriobotrya japonica Robert DeRuff 2004-1 546 Orange Newport Beach, Upper Newport Bay, Big Canyon on north-facing bank below Park Newport Apartments 16 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
  RSA611A  Eriodictyon crassifolium J. T. Howell 1927-6-26 233 Orange Claymine Canyon near Sierra Peak 213 Comment
  SJSU8878  Eriodictyon crassifolium H. E. McMinn 1935-6-22 3929 Orange Ridge above Clay Mine Canyon, N end of Santa Ana Mts Comment
  UCSB49524  Eriodictyon crassifolium Jenkins, Scott 1983-3-4 Orange 2 miles up Modjeska Canyon Rd. on west side 243 Comment
  UCD119319  Eriodictyon trichocalyx Raymond A. Evans 1949-4-28 s.n. Orange Mouth of Santa Ana Canyon, near Orange. Comment
  IRVC28779  Eriogonum fasciculatum Caroline Tran 2006-2-4 1 Orange San Joaquin Marsh; NW bluff edge Southern Coastal 5 Comment
  POM2249  Eriogonum fasciculatum P. A. Munz 1918-5-5 2193 Orange Laguna. Comment
  RSA669571  Eriogonum fasciculatum D. B. Boatman 1969-3-16 690316 -6 Orange 1/2 mile E crossroads Newport Blvd. and Skyline Dr. Tustin. 91 Comment
  RSA0055085  Eriogonum fasciculatum James R. Shevock 1972-2-18 1338 Orange Newport Back Bay. 10 Comment
  UCR250868  Eriogonum fasciculatum subsp. polifolium Dick Newell, Judy Booth 2014-4-27 365 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Road 0.8 mi. ENE of lower gate 632 Comment
  RSA748169  Eriogonum fasciculatum var. fasciculatum K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 4 Orange Cleveland National Forest, 0.5 mi. N Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mtns., ridge top. 917 Comment
  UC1090379  Eriogonum fasciculatum var. fasciculatum Milo S. Baker 1958-5-15 13301 Orange Newport Bay Comment
  UC527456  Eriogonum fasciculatum var. fasciculatum C. B. Wolf 1931-8-9 2300 Orange 1/2 mi s (1st small can.) Corona Del Mar beach (bottom of ravine near ocean) 7 Comment
  CAS-BOT-BC249945  Eriogonum fasciculatum var. foliolosum David D. Keck 1932-9-30 1903 Orange 2 mi. W. of Laguna Beach Comment
  RSA791469  Eriogonum fasciculatum var. foliolosum Keith E. Hoffmaster 1928-5-29 313 Orange San Onofre. CP5. Comment
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Nov 19 2013
  UCD100011  Eriogonum fasciculatum var. foliolosum G. H. Vansell 1933-6-30 s.n. Orange Orange County. Comment
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Sep 26 2020
  UCR210064  Eriogonum gracile A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37195 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  CAS-BOT-BC253478  Eriogonum gracile H. E. Hasse 1890-9-1 s.n. Orange Santa Monica Range Comment
  RSA766138  Eriogonum gracile Joseph A. Ewan 1932-7-29 7738 Orange Road around Newport Lagoon. Comment
  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
  RSA581664  Eriogonum gracile var. gracile Tony Bomkamp 1995-06 s.n. Orange Rancho Santa Margarita, ca. 1/8 mile west of Oso Parkway and 1/8 mile south of Canada Chiquita. Comment
  RSA0061164  Eriogonum nudum subsp. pauciflorum Robt. Allen 2007-8-11 s.n. Orange NW-facing slope of Santiago Peak, along Main Divide Road. 1701 Comment
  UCR207545  Eriogonum parvifolium O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  RSA0013910  Eriophyllum confertiflorum Fred M. Roberts 2012-4-24 7523 Orange San Joaquin Hills: Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  UCR241905  Eriophyllum confertiflorum Fred M. Roberts 2012-4-24 7523 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  RSA657739  Eriophyllum confertiflorum var. confertiflorum Ken Greby 1985-5-17 29 Orange On hillsides behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  UC536892  Eriophyllum confertiflorum var. confertiflorum Lawrence M. Booth 1932-5-12 1042 Orange Newport Bay Comment
  POM4917  Eriophyllum multicaule Robinson, Crocker 1916-3-28 s.n. Orange Santa Ana Mts. Comment
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Sep 3 2011
  RSA791467  Erodium botrys D. M. McF 1956-4-11 6 Orange Moulton Ranch 152 Comment
  UCR191367  Erodium cicutarium A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34622 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
  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
  UCR230231  Erodium moschatum Dick Newell, Don Millar 2011-3-15 078 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 219 Comment
  RSA800022  Eryngium aristulatum var. parishii Justin M. Wood 2011-6-28 4301 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  UCR188899  Erythrina caffra Robert DeRuff 2007-10-24 s.n. Orange Southern Coast, Newport Beach, Upper Newport Back Bay. Back Bay Drive, c. 0.3 km E of the junction with Eastbluff Drive 6 Comment
  RSA0069234  Eschscholzia californica Fred M. Roberts, Lee Ann Caranza 2009-4-7 7139 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 65 Comment
  SEINET7073414  Eschscholzia californica A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  CAS-BOT-BC402924  Eschscholzia californica Agnes M. Bowman 1899-5-1 s.n. Orange Orange Comment
  RSA16421  Eschscholzia californica var. peninsularis Percy C. Everett 1935-5-19 6873 Orange Santa Ana Mts, Baker Canyon, W Ladd Truck Trail 305 Comment
  RSA16485  Eschscholzia californica var. peninsularis Percy C. Everett 1935-6-19 7222 Orange Santa Ana Mts, Main Divide Motorway. Comment
  RSA0010840  Eucalyptus camaldulensis Fred M. Roberts, Sandy Leatherman 2007-11-27 6673 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  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
  RSA0012821  Eucalyptus polyanthemos A. C. Sanders, Fred M. Roberts 2008-9-18 36079 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  HSC13690  Eucrypta chrysanthemifolia J. W. Johnson 1961-4-2 Orange Newport Beach, along Upper Newport Bay. Comment
  RSA603249  Eucrypta chrysanthemifolia R. S. Woglum 1939-5-14 s.n. Orange Peninsular Ranges: Santa Ana Mountains, Trabuco Canyon. Comment
  RSA609  Eucrypta chrysanthemifolia J. T. Howell 1927-6-21 180 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR250854  Eucrypta chrysanthemifolia Dick Newell, Don Millar 2014-4-15 361 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Agua Chinon wash at the lower gate next to the 241 toll road 328 Comment
  JEPS1720  Eucrypta chrysanthemifolia var. chrysanthemifolia L. M. Booth 1932-5-19 1063 Orange Newport Bay Comment
  SBBG40450  Eucrypta chrysanthemifolia var. chrysanthemifolia J. Ingram 1960-3-29 265 Orange 2 mi above O'Neill Park, Trabuco Cyn Comment
  POM8655  Euphorbia crenulata P. A. Munz 1920-4-23 3728 Orange Santa Ana Mountains, Silverado Canon. 549 Comment
  IRVC25153  Euphorbia maculata Fred M. Roberts 1986-9-3 3133 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  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
  UCR55556  Euphorbia misera G. L. Webster 1966-12-11 7479 Orange South Coast, Dana Point Comment
  RSA716774  Euphorbia peplus Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6065 Orange Santa Ana Mtns: Holy Jim Cyn.: Holy Jim Trail, 3.5km SE summit of Santiago Peak. 610 Comment
  UCR192734  Euphorbia polycarpa A. C. Sanders, Fred M. Roberts 2008-5-6 35228 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
  UCR274180  Euphorbia polycarpa Dick Newell, Don Millar 2015-10-13 410 Orange Peninsular Range; Santa Ana Mtns., Limestone Canyon on Limestone Ridge, 0.14 mile south of Cactus Canyon Road 427 Comment
  IRVC27724  Euphorbia serpens Mark A. Elvin 2004-5-2 3428 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  SD233799  Extriplex californica Hyrum B. Johnson 1973-10-27 Orange Pacific Coast: Bolsa Chica State Beach. Comment
  IRVC28201  Ficus carica A. C. Sanders, Mark A. Elvin 2005-9-2 31606 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Cyn, along trail in the switchbacks. Santa Ana Mountains 970 Comment
  RSA716721  Ficus carica Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6057 Orange Santa Ana Mtns: Holy Jim Cyn.: Holy Jim Trail, 3.5km SE summit of Santiago Peak. 610 Comment
  RSA0116289  Ficus microcarpa R. E. Riefner Jr. 2014-7-13 14 -222 Orange City of Irvine, S side of Red Hill Ave. bridge E of 405 Freeway north-bound lane. 31 Comment
  UC2046888  Ficus microcarpa R. E. Riefner Jr. 2015-8-27 15 -359 Orange City of Newport Beach, Corona del Mar, on Marguerite Ave. between Fifth Ave. and Fourth Ave. Comment
  UCR267278  Ficus microcarpa R. E. Riefner Jr. 2014-8-8 14- 273 Orange City of Laguna Beach, east side of South Coast Highway near Diamond St. 25 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
  RSA524  Foeniculum vulgare J. T. Howell 1927-7-27 500 Orange Near ranch houses, Rancho Santa Ana 152 Comment
  CAS-BOT-BC63072  Frangula californica subsp. californica Carl B. Wolf; E. R. Johnson 1933-11-3 5532 Orange Santa Ana Mts., Silverado Canyon, base of Silverado Motorway. 731 Comment
  CAS-BOT-BC63074  Frangula californica subsp. californica Reid Moran 1975-7-18 22598 Orange Common near Yaeger Mine, upper Trabuco Canyon, Santa Ana Mountains. 725 Comment
  CAS-BOT-BC53334  Frangula californica subsp. cuspidata Carl B. Wolf 1933-8-24 5391 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA303542  Frankenia grandifolia Jim R. Shevock 1972-9-27 2289 Orange Newport Back Bay. 2 Comment
  RSA80981  Frankenia grandifolia var. campestris Raymond J. Dobbs 1924-7-3 5391 Orange Sea bluff at Laguna Beach Comment
  RSA234534  Frankenia grandifolia var. grandifolia James Henrickson 1970-7-25 5031 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile E of Warner Ave. along Pacific Coast hwy. 1 Comment
  IRVC22882  Frankenia salina Fred M. Roberts 1985-6-12 1891 Orange Laguna Niguel: Alicia Pkwy, 2.1km by road SW La Paz Rd., 1.0km W Sulphur Creek Reservoir. Southern Coastal 67 Comment
  RSA689536  Frankenia salina R. E. Riefner Jr. 2002-5-4 20 -95 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  UCR154350  Frankenia salina Mark A. Elvin 2004-5-2 3402 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  CAS-BOT-BC402193  Fraxinus dipetala R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA1456  Fraxinus dipetala E. R. Johnson 1929-4-11 1257 Orange Sierra Peak Trail. Comment
  RSA698196  Fraxinus dipetala J. Vlahos 1934-4-6 s.n. Orange Top of Black Star Canyon. Comment
  CDA23578  Fraxinus uhdei T. McCrainie, Mark A. Elvin 2006-9-23 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  SD175837  Fraxinus uhdei D. G. Kelch 2006-12-9 6 535 Orange Along Newport Back Bay Dr. in side canyon. 6 Comment
  SBBG120620  Fraxinus velutina A. C. Sanders, F. M. Roberts, M. Balk 2006-7-20 33043 Orange San Juan Cyn from Lower San Juan Picnic Area to ca. 1 mi downstream, parallel to Hwy 74 and near Riverside Co line 366 Comment
  SEINET8726759 Image available Fremontia californica Jean Coulson 1959-1 119 Orange Disneyland Outside Fantasyland R.R. Station. Comment
  SEINET10492275  Fuchsia hybrida David B. Dunn 1971-8-13 Dunn 18111 Orange Cultivated plants at costa mesa. Comment
  RSA652106  Fumaria officinalis Phil Goodwin 1948-2-6 s.n. Orange Found in an orchard 3 miles east of Orange. 122 Comment
  RSA566  Funastrum cynanchoides var. hartwegii J. T. Howell 1927-7-24 461 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  RSA700537  Galium angustifolium Unspecified s.n. Orange Modjeska's Home. Comment
  UCR240086  Galium angustifolium Dick Newell, Judy Booth 2012-6-3 263 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Truck Trail/Silverado Canyon Rd., 1.6 miles ENE of Maple Springs Gate 741 Comment
  LA208399  Galium angustifolium John Thomas Howell; 1927-6-3 2416 Orange Santa Ana Marsh and adjacent lowlands, Santa Ana Canyons Comment
  SBBG119147  Galium angustifolium R. G. Marushia 2004-4-16 18 Orange El Moro Cyn, Crystal Cove State Park, Laguna Beach, S of No Name Ridge Rd in park, downhill from pullout and below closed road to park entrance 61 Comment
  UCSB48003  Galium angustifolium Roberts, Fred 1980-6-29 Orange Santa Ana Mtns., Viejo Canyon, 0.4km N Calif. Rte 74; 2.2km ENE San Juan Guard Station 341 Comment
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Oct 28 2018
  JEPS56094  Galium angustifolium subsp. angustifolium Lauramay T. Dempster and G. L. Stebbins 1967-3-21 4354 Orange along road from Pomono to Brea ca 1 mi sw Orange-San Bern. Co. line (s-facing hillside); Carbon Canyon Comment
  RSA67768  Galium angustifolium subsp. angustifolium G. R. Campbell 1951-5-30 16095 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest 152 Comment
  RSA7473  Galium angustifolium subsp. angustifolium Carl B. Wolf 1933-8-24 5397 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  RSA749238  Galium angustifolium subsp. angustifolium Robert F. Thorne 1963-7-26 32825 Orange Trabuco District, Santa Ana Mts., Cleveland National Forest. 1159 Comment
  UC729870  Galium angustifolium subsp. angustifolium Carl B. Wolf 1932-7-2 3827 Orange 1/8 mi below La Vida Springs; Carbon Canyon 213 Comment
  RSA221069  Galium aparine E. W. Lathrop 1966-5-1 6261 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  CDA42130  Galium aparine D. H. Byers 1957-6-25 s.n. Orange [No further data.] 0 Comment
  RSA610219  Galium aparine Fred M. Roberts Jr., Julie Vanderwier 1997-4-29 5017 Orange Bolsa Chica Salt Marsh (U.S. Fish and Wildlife Service cell 17), west edge of old oil field, 1.7 km SSE Chica Survey Mark. 0 Comment
  POM47660  Galium porrigens F. W. Peirson 1924-5-31 4665 Orange 5 miles southeast of Laguna Beach Comment
  UCR191347  Galium porrigens A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34632 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
  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
  IRVC26431  Galvezia speciosa Mark A. Elvin 2004-2-22 3153 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA608241  Garrya flavescens var. pallida Steve Boyd, Bart O'Brien 1998-1-13 10075 Orange Santa Ana Mountains: north end of the range, head of Tin Mine Canyon along Main Divide Road (3S04) ca. 1.8 mi south of Oak Flat. 884 Comment
  UCSB56674  Garrya fremontii Roberts, Fred 1984-2-12 Orange Santa Ana mts; 0.lkm SW Falcon Group Camp; 2.0km ESE Los Pinos Peak 304 Comment
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Apr 27 2020
  CLARK-A1528-974  Gasoul nodiflorum Patricia A. Andrews 1975-6-26 5928 Orange Capistrano Bay Beach 9 Comment
  RSA750001  Gastridium phleoides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35321 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  RSA39481  Gaura parviflora E. L. Paddock 1943-6-8 12730 Orange Whittier Road 1/4 mile west of Puente Street, Brea. Comment
  CDA5237  Gaura sinuata T. C. Fuller 1962-6-7 8873 Orange Veeh ranch, north of El Toro, ca. 11 miles southeast of Tustin. 0 Comment
  SEINET10728264  Gazania David B. Dunn 1971-8-13 Dunn 18119 Orange Cultivated plants vicinity of Laguna Beach. Comment
  RSA610227  Gazania linearis Fred M. Roberts Jr., Tony Bonkamp 1997-3-19 4988 Orange RANCHO MISSION VIEJO: Canada Gobernadora, east slope, 2km. SSE Median Rancho Survey Mark, 1.8 km N Calif. Rte.74. 104 Comment
  JEPS61411  Geranium carolinianum Alice King Apr 1908 Orange Santa Ana Mts. Comment
  RSA682592  Geranium carolinianum Scott D. White, Brian Leatherman 1997-5-6 5037 Orange Santa Ana Mts: Santiago Canyon area. Unnamed tributary to Santiago Ck. flowing from the SW, directly west of Pancho Cyn. Lomas de Santiago S 179. 366 Comment
  UCD169463  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-30 12- 285 Orange City of Costa Mesa, Talbert Regional Park, general vicinity of Balboa Blvd. and 19th Street. 5 Comment
  RSA797024  Geranium incanum var. multifidum R. E. Riefner Jr. 2007-4-28 7 -189 Orange City of Newport Beach, Newport Bay, North Star Beach, vicinity of Morning Star Ln. 2 Comment
  RSA734815  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34574 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  SD27976  Gilia angelensis Carl B. Wolf 1932-3-8 2674 Orange 0.5 mile north of Corona Del Mar; borders of Newport Bay. 7 Comment
  SEINET5321189  Gilia angelensis A. G. Vestal, W. P. Vestal 1955-3-24 3460 Orange El Toro; About 5 miles east of El Toro Comment
  RSA698358  Gilia tricolor Kenneth Beard s.n. Orange Silverado Canyon. Comment
  UCR241903  Glebionis coronaria Fred M. Roberts 2012-4-24 7521 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  RSA612342  Glycyrrhiza lepidota L. C. Wheeler 1932-7-9 942 Orange Santa Ana River 5 miles below Prado. 152 Comment
  RSA657737  Gnaphalium californicum Ken Greby 1985-5-17 24 Orange On hillsides behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  UCR193049  Gnaphalium californicum A. C. Sanders, Mitch Provance 2008-5-20 35411 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  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
  RSA627032  Gnaphalium luteoalbum Scott D. White 1998-5-16 6508 Orange E Coyote Hills, Oil field at NW corner of Bastanchury and State College. 122 Comment
  UCR100580  Gnaphalium stramineum B. G. Pitzer 1996-4-30 2764 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR158151  Gnaphalium stramineum Adrian Wolf 1998-5-27 340 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
  RSA698229  Godetia bottae R. H. McArthur 1934-5-19 s.n. Orange Trobuca Canyon. Comment
  RSA734895  Grindelia camporum A. C. Sanders 2008-5-28 35430 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  IRVC4033  Grindelia camporum var. bracteosa A. S. Boughey 1968-7-16 422 Orange road to Signal Peak. San Joaquin Hills Comment
  POM4604  Grindelia camporum var. bracteosa D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach Comment
  RSA17586  Grindelia camporum var. bracteosa C. B. Wolf 1936-7-8 8101 Orange Coast Hwy, Western end of Newport Bay. 9 Comment
  RSA703683  Grindelia camporum var. bracteosa Fred M. Roberts, David E. Bramlet 2004-11-5 6126 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Cyn., 0.79 km N Sycamore Gate and 0.18 km W Cristianitos Road. 146 Comment
  UCR233742  Grindelia camporum var. bracteosa Fred M. Roberts 2008-6-26 7059 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge along West Loma Ridge Road, c. 1 km north of Haul Road, 2.5 km NNW of Bee Peak, Irvine Ranch Land Conservancy 382 Comment
  UCR230829  Grindelia camporum var. camporum Dick Newell, Don Millar 2011-6-14 174 Orange South Coast, San Joaquin Hills, upper Buck Gully near Newport Beach 134 Comment
  HSC79042  Grindelia hirsutula Steve Boyd 1981-5-13 Orange Pelican Hill, Irvine Ranch property in the San Joaquin Hills S of Corona del Mar Comment
  UC536899  Grindelia hirsutula Lawrence M. Booth 1932-5-24 1092 Orange Newport Bay Comment
  UC718319  Grindelia hirsutula Carl B. Wolf 1936-7-8 8101 Orange Coast Highway w end of Newport Bay Newport Bay 9 Comment
  POM201690  Gutierrezia californica L. M. Booth 814 Orange Santa Ana Canyon Comment
  UCR231201  Haplopappus squarrosus A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39939 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  UCR157247  Haplopappus venetus Scott D. White 1992-9-29 865 Orange Vicinity of City of Brea, immediately north of Carbon Canyon Road and east of Placentia Avenue, +- 1 mi (airline) SSE of Tonner Canyon 183 Comment
  UCR237837  Haplopappus venetus Mark A. Elvin 2003-2-2 2285 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR132982  Harpagonella palmeri Adrian Wolf 2000-4-10 451 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 351 Comment
  RSA0066588  Harpagonella palmeri Fred M. Roberts, Carol A. Roberts, Dave Bontrager 1990-4-28 4587 Orange Rancho Mission Viejo: Christianitos Canyon, 4.0 km E Playa Survey Marker. 174 Comment
  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
  RSA663158  Hazardia squarrosa var. grindelioides R. E. Riefner 2000-8-3 20 -710 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge. 534 Comment
  RSA678459  Hedypnois cretica Valerie L. Soza, Kim Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1118 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UC774607  Hedypnois rhagadioloides C. B. Wolf 1938-5-2 9406 Orange vacant lot on e side of 1200 block Francis St.; City of Fullerton 60 Comment
  RSA794331  Helianthemum scoparium Justin M. Wood 2010-3-31 1448 Orange Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corrridor, west of Green River Golf Course on bluff south of the river. 122 Comment
  SFV18100  Helianthemum scoparium J. D. Dilley, J. N. Hogue, D. L. Bishop 1998-4-9 257 Orange Santa Ana Mountains. San Juan Canyon at San Juan Hot Springs just inside western border of Cleveland National Forest. 213 Comment
  IRVC20494  Helianthemum scoparium var. vulgare Fred M. Roberts 1983-5-4 1029 Orange Temple Hill, Upper Rancho Laguna Canyon, 1.7km SSW Top of the World Sch.; 1.4km ENE Cactus Point, Laguna Beach 200 Comment
  JEPS35482  Helianthus annuus W. L. Jepson 1940-10-6 20180 Orange Horseshow Bend Santa Ana Canyon Comment
  IRVC777  Helianthus annuus D. Christy 1973-8-1 Orange Newport Back Bay. L.J. Colin MACF 20494. Newport Beach: Bayside Dr. Newport Beach Comment
  UCSB18935  Helianthus annuus Cummings, Bob 1963-5-11 Orange U.S. Highway 101 alternate, 2 miles NW of San Clemente Comment
  CAS-BOT-BC305656  Helianthus ciliaris T. C. Fuller 1962-6-7 8871 Orange Union Oil lease, Deodoro St., 1.2 mi. e. of Brea Blvd., Brea Comment
  CAS-BOT-BC305675  Helianthus gracilentus Le Roy Abrams 1901-6-16 1853 Orange Trabuco Canon [Canyon] Comment
  RSA0022445  Helianthus gracilentus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49783 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA0031764  Helianthus gracilentus R. F. Thorne 1977-11-21 50810 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UC537260  Helianthus nuttallii subsp. parishii L. M. Booth 1933-8-26 1388 Orange Newport Lagoon Comment
  RSA748266  Heliotropium curassavicum A. C. Sanders, Fred M. Roberts 2008-6-17 35498 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff s Training Facility, just east of Hwy 241 280 Comment
  UCR100455  Heliotropium curassavicum B. G. Pitzer 1996-4-30 2770 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR195005  Heliotropium curassavicum A. C. Sanders, Fred M. Roberts 2008-8-7 35983 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  POM202725  Heliotropium curassavicum var. oculatum L. M. Booth 1932-6-9 1172 Orange Santa Ana River, 1 mile from ocean. Comment
  RSA74877  Heliotropium curassavicum var. oculatum Elroy Robinson 1935-6-28 s.n. Orange San Clemente, along Santa Fe Railway. Comment
  CAS-BOT-BC305897  Helminthotheca echioides W. P. Sanders 1969-7-11 4 Orange Costa Mesa Comment
  RSA572919  Hemizonia australis J. Mallory 1993-8-27 6366 -D-01 Orange At. NW portion of Mesa, approximately 10m S of pipes, powerpoles metal building and old water tank, S. of Los Patos Ave, Bolsa Chica Wetlands. Comment
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Sep 4 2013
  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
  IRVC14670  Hemizonia fasciculata A. S. Boughey 1968-7-16 424 Orange road to Signal Peak. San Joaquin Hills Comment
  POM360262  Hemizonia fasciculata F. R. Fosberg 1930-7-10 455 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  POM5971  Hemizonia fasciculata D. L. Crawford 1915-09 504 Orange Huntington Beach. Comment
  UCR107857  Hemizonia fasciculata Scott D. White, B. Leatherman 1998-1-26 6069 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  UCR191218  Hemizonia fasciculata A. C. Sanders 2008-4-29 35142 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  RSA0038312  Hemizonia fasciculata Louis C. Wheeler 1932-6-25 861 Orange Bluff on north side Newport Bay. 6 Comment
  RSA697113  Hemizonia fasciculata Jeanne Parton 1984-5-1 s.n. Orange Orange Co. Dam. Habitat-low hills. Comment
  IRVC25204  Hemizonia parryi subsp. australis Fred M. Roberts 1986-11-4 3199 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  LA26011  Hemizonia parryi subsp. australis David D. Keck; 1933-9-29 2537 Orange Seal Beach Comment
  UCR158461  Hemizonia parryi subsp. australis Adrian Wolf 1998-7-1 418 Orange South Coast, north Newport Oil Fields and East Banning Park; between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 6 Comment
  JEPS43407  Hesperocnide tenella Lawrence M. Booth 1932-5-19 1064 Orange Newport Bay Comment
  UC537059  Hesperocnide tenella P. A. Munz 1934-3-26 13134 Orange Newport Beach 6 Comment
  CAS-BOT-BC143752  Heteromeles arbutifolia P. Everett; E. R. Johnson 1937-11-30 9380 Orange Santa Ana Mts., Bold Meadow at head of Claymine Canyon on slopes of Sierra Peak 762 Comment
  CAS-BOT-BC143753  Heteromeles arbutifolia C. B. Wolf 1932-3-6 1840 Orange Trabuco Canyon 1/2 mi. above Trabuco Oaks, west slope of Santa Ana Mts. 457 Comment
  CAS-BOT-BC143754  Heteromeles arbutifolia Dr. Barton W. Evermann 1918-3-25 s.n. Orange San Clemente Comment
  CAS-BOT-BC143755  Heteromeles arbutifolia John Thomas Howell 1927-7-16 2783 Orange Hills on north side of Santa Ana [Canon] Canyon 152 Comment
  RSA0072389  Heteromeles arbutifolia K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 3 Orange Cleveland National Forest, 0.5 mi. N Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mtns., ridge top. 917 Comment
  RSA0072401  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35840 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin. 391 Comment
  RSA0072404  Heteromeles arbutifolia Fred M. Roberts, Robert L. Allen 2004-1-16 6020 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.15 km W of Cristianitos Rd. 92 Comment
  SBBG27204  Heteromeles arbutifolia C. B. Wolf 1932-12-19 4430 -a Orange 0.5 mi from Skyline Drive on fire break rd to Sierra Peak 762 Comment
  UCR131874  Heteromeles arbutifolia J. Mallory, V. McCoy 1995-7-3 6454- 121 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  UCR174217  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33060 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
  UCR281510  Heteromeles arbutifolia Mitch Provance, Jeremiah George 2017-3-20 317- 105 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  SEINET10865978  Heteromeles arbutifolia David B. Dunn 1975-1 Dunn 22401 Orange Around the comdominium pacific island estates in laguna niguel area, california Holly 30 Comment
  CAS-BOT-BC318899  Heterotheca grandiflora Helen D. Geis 1902-1-1 s.n. Orange Unspecified Comment
  UCSB52910  Heterotheca sessiliflora subsp. echioides Roberts, Fred; Camp, H. 1984-9-5 Orange Wagon Wheel Regional Park; 1.4 km. NW Bench Mark 422; 2.9 km. NE Median Survey Mark 175 Comment
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Dec 7 2018
  RSA25872  Hibiscus trionum E. L. Paddock 1941-9-8 120 Orange L.J. Vejar Ranch, E of Yorba Linda. Comment
  RSA725575  Holodiscus microphyllus Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6539 Orange Upper Fremont Canyon, 5.3 km ENE Irvine Lake Spillway and 1.6 km W Hidden Ranch. 738 Comment
  RSA12282  Hordeum brachyantherum C. B. Wolf 1934-4-11 5657 Orange Bryant Ranch, east of Long Beach, along Bixby Ave., 0.5 mile west of Hansen Rd. 100 ft N of fence 8 Comment
  RSA587884  Hordeum depressum Fred M. Roberts 1990-5-8 4615 Orange Soquel Canyon, 1.2km NNW Gilman Peak 240 Comment
  RSA592062  Hordeum intercedens R. E. Riefner 1994-3-28 94 -207 Orange S bluffs area in mima terrain at San Clemete State Beach. Comment
  RSA702992  Hordeum intercedens D. E. Bramlet, Fred M. Roberts 2003-4-10 3370 Orange Donna O'Neill Reserve. Along the high Ridge trail, 518m west of Cristianitos Rd. and 335m south of the E-W access road. The site is 1.1km north of Pico. 189 Comment
  UCR192077  Hordeum murinum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35278 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  CDA22569  Hordeum murinum subsp. leporinum J. B. Anderson 1966-4-16 587 Orange South Coast; Corona Del Mar: Buck Gully, Little Corona Beach Comment
  RSA184143  Hordeum murinum subsp. leporinum I. L. Wiggins 1966-2-19 20453 Orange Hillside on W side of road, Carbon Canyon about 200m. Sw of Orange County Survey bench mark RCE 7872 Comment
  SEINET187061  Horkelia cuneata subsp. puberula P. A. Munz 1936-4-20 14606 Orange Mt Olympus Laguna Beach 152 Comment
  UC582823  Horkelia cuneata subsp. puberula Philip A. Munz 1936-4-20 14606 Orange Laguna Beach Mt. Olympus 152 Comment
  CAS-BOT-BC206147  Hosackia crassifolia Peter H. Raven 1962-5-18 17754 Orange Main Divide Truck Trail 1.6 miles north of Santiago Peak, along edges of oak woodland 1554 Comment
  POM48470  Hydrocotyle umbellata F. W. Peirson 1924-10-19 5237 Orange Wintersberg Comment
  UCD169465  Hydrocotyle umbellata L. M. Booth Date Unknown 833 Orange Santa Ana Canyon. Comment
  RSA80332  Hydrocotyle verticillata J. T. Howell 1927-7-5 2658 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA0106894  Hypericum canariense R. E. Riefner Jr. 2010-6-9 10 -56 Orange City of San Juan Capistrano, La Novia Ave. at Valle Rd. 45 Comment
  RSA747712  Hypochaeris glabra Fred M. Roberts 2008-4-9 6867 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  SEINET7249215  Ipomoea cairica R. E. Riefner Jr. 2012-1 12 -563 Orange City of Laguna Beach, South Crescent Beach, Circle Way near Cliff Drive. 3 Comment
  UCR240185  Ipomoea cairica R. E. Riefner Jr. 2012-11-27 12- 563 Orange South Coast, city of laguna Beach, South Crescent Beach, Circle Way near Cliff Drive 3 Comment
  IRVC996  Ipomoea mutabilis McGuire 1965-5-10 Orange Corona del Mar. Newport Beach 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
  CDA8035  Isocoma menziesii var. vernonioides E. Dudley 1956-10-26 Orange Bryant Ranch, Irvine. 0 Comment
  OBI28466  Isocoma menziesii var. vernonioides J. & B. Sample, B. Sample 1981-8-12 5589 Orange Near Orange County line on hwy 74 610 Comment
  POM361284  Isocoma menziesii var. vernonioides Anstruther Davidson 1917-08 3268 Orange Near Laguna Beach. Comment
  RSA680324  Isocoma menziesii var. vernonioides Scott D. White, Jeff Lincer 2003-7-7 9615 Orange Former El Toro Marine Corps Air Stn. East of 'El Toro Marine Sch.' and Irvine Blvd.; site of former dump. 140 Comment
  RSA702808  Isocoma menziesii var. vernonioides Scott D. White 2004-7-7 10600 Orange South Coast: Laguna Niguel. 61 Comment
  SBBG62842  Isocoma menziesii var. vernonioides M. N. Ackley -Sep-1928 428 Orange Sunset Beach 8 Comment
  UC1424944  Isocoma menziesii var. vernonioides C. W. Tilforth 1976-10-21 1225 Orange slopes above Santa Ana River Canyon (on Rancho Santa Ana) Comment
  RSA728657  Isocoma menziesii var. vernonioides R. E. Riefner 2006-10-24 04 -449 Orange City of Costa Mesa; E of Santa Ana River, NW 0.2 mi from Balboa Blvd and 19th St. 10 Comment
  IRVC28772  Isomeris arborea Anh T. Nguyen, Duy Nguyen & Christina Nguyen 2006-2-4 1 Orange San Joaquin Marsh; NW Edge of Marsh Southern Coastal 5 Comment
  UCR96319  Isomeris arborea B. G. Pitzer 1996-4-30 2796 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UCR240104  Jaumea carnosa Dick Newell, Judy Booth 2012-9-26 292 Orange South Coast, Newport Beach, Back Bay Drive at the Salt Dike 3 Comment
  RSA788801  Jepsonia parryi R. F. Thorne 1977-11-21 49984 -b Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  UC112095  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
  RSA0011063  Juglans californica M. B. Dunkle 1933-5-30 3569 -A Orange Carbon Canyon Comment
  SBBG128110  Juglans californica R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49613 Orange Ortega Hwy (74), ca. 2.5 mi above San Juan Fire Station; Santa Ana Mtns Comment
  RSA542477  Juglans californica var. californica Fred M. Roberts, Karlin Marsh 1988-4-25 3929 Orange San Joaquin Hills: Irvine Coast, 1.1 km SW Pelican Hill. 44 Comment
  CAS-BOT-BC334208  Juglans hindsii R. E. Riefner, Jr. 2013-11-6 13 -233 Orange City of Laguna Beach, Laguna Canyon, N of Phillips St. on E side of Laguna Canyon Rd. 71 Comment
  SD253479  Juglans hindsii R. E. Riefner Jr. 2013-11-6 13 234 Orange City of Laguna Beach, Laguna Canyon, N of Phillips St on E side of Laguna Canyon Rd. 71 Comment
  UCD169185  Juglans hindsii R. E. Riefner Jr. 2013-11-6 13- 234 Orange City of Laguna Beach, Laguna Canyon. N of Phillips St. on E side of Laguna Canyon Rd. 71 Comment
  SBBG128386  Juglans hindsii R. E. Riefner Jr. 2010-9-8 10 -121 Orange Laguna Cyn, ca. 0.15 mi S of El Toro Rd on E side of Laguna Cyn Rd; Laguna Beach 75 Comment
  RSA0011199  Juglans nigra A. C. Sanders, Fred M. Roberts 2008-6-17 35477 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UC1280019  Juncus acutus subsp. leopoldii Peter H. Raven 1957-9-28 11401 Orange just n Huntington Beach Comment
  UCR193797  Juncus balticus A. C. Sanders, Fred M. Roberts 2008-7-3 35706 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA748262  Juncus balticus subsp. ater A. C. Sanders, Mitch Provance 2008-5-20 35395 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR97575  Juncus bufonius B. G. Pitzer 1997-4-15 3139 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  UCD169360  Juncus macrophyllus A. C. Sanders; Fred M. Roberts, Michelle Balk 2006-7-20 33045 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line. 366 Comment
  RSA50308  Juncus phaeocephalus E. K. Balls 1949-5-9 13467 Orange [Rancho Santa Ana] Botanic Garden, Santa Ana River Canyon. 198 Comment
  RSA0014060  Juncus rugulosus Fred M. Roberts, R. E. Riefner 2010-5-30 7134 Orange Lomas de Santiago: Loma Ridge, Hanging Man s Tree Cyn., along Hanging Man s Tree Cyn. Rd., c.a. 0.4km W Santiago Cyn. Rd., and 1.2 km N Bolero Lookout. 372 Comment
  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
  POM201725  Juncus textilis L. M. Booth 1932-6-7 1159 Orange Newport Lagoon. Comment
  RSA749054  Juncus textilis A. C. Sanders, Fred M. Roberts 2008-8-7 35994 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 185 Comment
  SEINET3881136  Juncus textilis A. C. Sanders, Fred M. Roberts 2008-7-16 35855 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hangmans Tree Canyon (El Toro 7.5').; 0 395 Comment
  UC536958  Juncus textilis Lawrence M. Booth 1932-6-7 1159 Orange Newport Lagoon 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
  RSA21231  Juniperus californica E. R. Johnson 1937-3-28 8502 Orange 4 9/10 mi. E. of San Juan Capistrano on No. side of Ortega Highway. Comment
  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
  RSA25894  Keckiella antirrhinoides Jenkins 1929-2-6 9858 Orange Claymine Canyon 213 Comment
  RSA552937  Keckiella antirrhinoides Fred M. Roberts Jr. 1989-5-9 4339 Orange Santa Ana Mts: Gypsum Canyon, west fork, 5.6 km WNW Sierra Peak, c.a. 1 km S Highway 91. 146 Comment
  CAS-BOT-BC235529  Keckiella antirrhinoides var. antirrhinoides Robinson; Crocker 1916-3-28 999 Orange Santa Ana Mt 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
  RSA5930  Keckiella cordifolia Carl B. Wolf 1932-7-2 3822 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 213 Comment
  UCR27507  Keckiella cordifolia T. P. Krantz 1981-6-18 s.n. Orange Santa Ana Mtns, Main Divide Truck Trail near the head of the canyon Comment
  RSA703685  Kickxia elatine Fred M. Roberts, David E. Bramlet 2004-7-30 6093 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., parking area at Gato Gate and 0.06 km W Cristianitos Road. 96 Comment
  RSA72  Koeleria macrantha J. T. Howell 1928-3-17 879 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA749490  Koeleria macrantha Fred M. Roberts, Linda Farley 2008-3-28 6824 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber's Peak, Irvine Land Conservancy. 437 Comment
  CAS-BOT-BC174783  Koelreuteria bipinnata T. B. Salvato; Katie Kurtz; Mitch Provance 2006-10-15 1903 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  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
  CAS-BOT-BC383069  Lagunaria patersonia R. E. Riefner, Jr. 2014-6-6 14 -155 Orange City of Laguna Beach, W end of Heisler Park, vicinity of High Dr. and Cliff Dr. 9 Comment
  RSA732071  Lamarckia aurea A. C. Sanders, Fred M. Roberts 2008-3-25 34557 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UC1090437  Lamarckia aurea Milo S. Baker 1958-5-20 13297 Orange Santa Ana Mountains Comment
  UCR193033  Lamium amplexicaule A. C. Sanders, Mitch Provance 2008-5-20 35401 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
  RSA184155  Lamium amplexicaule I. L. Wiggins 1966-2-12 20440 Orange Orange grove on W side of State College Blvd. opposite Electra Way, Fullerton. Comment
  UCSB41749  Lamium amplexicaule Fountain, L. 1966-2-16 Orange Northwest corner of Orangethorpe and State College Blvd Comment
  IRVC532  Lasthenia coronaria R. Harbour 1965-4-4 Orange Irvine Coast Country Club. Crystal Cove State Park Comment
  UCR158155  Lasthenia glabrata Adrian Wolf 1998-5-27 324 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
  RSA3172  Lasthenia glabrata subsp. coulteri C. B. Wolf 1932-3-8 2691 Orange Sunset Beach, near S city limits 2 Comment
  SD222114  Lasthenia glabrata subsp. coulteri Bramlet 2008-4-3 4150 Orange Peninsular Ranges; Santa Ana Mountains region: Bee Cyn. Bowerman landfill site. 1.1 km south of the Bee Cyn access road and 35 m west of the active landfill, on graded fill slope. Comment
  RSA2082  Lasthenia gracilis C. B. Wolf 1931-3-6 1847 Orange Trabuco Canyon, 1 mile above Trabuco Oaks, W slope of Santa Ana Mts 518 Comment
  RSA406637  Lathyrus vestitus subsp. alefeldii M. B. Dunkle 1935-3-3 4353 Orange San Juan Canyon. 457 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
  IRVC2207  Lathyrus vestitus subsp. laetiflorus B. Mawdsley 1965-5-2 Orange Cleveland National Forest; Silverado [Canyon]. Santa Ana Mountains Comment
  RSA542543  Lathyrus vestitus subsp. laetiflorus Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3887 Orange Santa Ana Mountains: Main Divide Truck Trail, 1.0 km by road NW Blue Jay Campground, c.a. 2.1 km ESE Los Pinos Peak. 1024 Comment
  UCD106651  Lathyrus vestitus var. vestitus W. W. 1951-4-25 s.n. Orange Border of Riverside County, west side of Santa Anna Mts. 609 Comment
  RSA697123  Layia platyglossa Minor Warne 1934-4-21 s.n. Orange Santiago Canyon. Comment
  RSA5329  Lepechinia cardiophylla B. D. Stark 1933-1-4 s.n. Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  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
  UCD115329  Lepidium appelianum Ethelbert Johnson 1931-5-1 2198 Orange Santa Ana. Comment
  RSA682597  Lepidium lasiocarpum Scott D. White, Amanda Duchardt 2003-3-27 8861 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  UCR237845  Lepidium lasiocarpum Mark A. Elvin 2003-2-2 2274 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  IRVC1099  Lepidium lasiocarpum G. Olander 1965-4-3 Orange Corona del Mar, Begonia and 2nd Ave. Newport Beach 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
  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
  RSA679088  Lepidium latifolium Fred M. Roberts 2003-7-24 5971 Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub., 33,30 15 N, 117, 38 44 27 Comment
  CAS-BOT-BC12522  Lepidium nitidum Carl B. Wolf 1932-3-8 2683 Orange 0.5 mile north of Corona Del Mar borders of Newport Bay. 7 Comment
  RSA3180  Lepidium nitidum C. B. Wolf 1932-3-8 2683 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  UCR203975  Lepidium nitidum D. E. Bramlet, Weena Sangkatavat 2008-3-27 4131 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 528m south of the Bee Canyon access road and 440m west of the active landfill 270 Comment
  CAS-BOT-BC12524  Lepidium nitidum Ira L. Wiggins 1966-3-5 20511 Orange About 0.5 mile wst of El Toro Post Office, along Highway S-18. Comment
  OBI70646  Lepidium pinnatifidum Louis C. Wheeler 1947-5-4 6476 Orange 4.5 mi S of Santa Ana: South Main Street extension, 0.8 mi S of Newport Ave Comment
  SD215443  Lepidium ruderale Louis C. Wheeler 1947-5-4 6476 Orange 4.5 miles south of Santa Ana; South Main Street Extension, 0.8 mile south of Newport Avenue. Comment
  CAS-BOT-BC60082  Lepidium virginicum var. menziesii John Thomas Howell 1927-6-21 2561 Orange North side of Santa Ana Canyon. 152 Comment
  CAS-BOT-BC60084  Lepidium virginicum var. menziesii Helen D. Geis 1902-1-1 531 Orange Santiago Creek. Comment
  UCR103217  Lepidium virginicum var. robinsonii Scott D. White 1997-2-19 4696 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA717044  Lepidospartum squamatum Fred M. Roberts, Chris M. Barnhill 2005-9-27 6287 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  UCR193821  Lepidospartum squamatum A. C. Sanders, Fred M. Roberts 2008-7-16 35864 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UCR240087  Lepidospartum squamatum Dick Newell, Judy Booth 2012-6-3 262 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Truck Trail/Silverado Canyon Rd., 1.6 miles ENE of Maple Springs Gate 741 Comment
  UCSB48209  Lepidospartum squamatum Roberts, Jr., Fred 1981-7-8 Orange Rancho Mission Viejo; Calif. Rte. 74, 10 km. by road ENE San Juan Capistrano 101 Comment
  RSA789590  Leptochloa fusca subsp. fascicularis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49632 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA161259  Leptochloa fusca subsp. uninervia P. H. Raven 1961-10-15 16851 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing 61 Comment
  RSA226742  Leptochloa fusca subsp. uninervia I. L. Wiggins 1965-11-6 20336 Orange Along west side of village of Atwood. Comment
  RSA719404  Leptochloa fusca subsp. uninervia Fred M. Roberts, Robert L. Allen 2006-10-8 6431 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
  SDSU3242  Leptochloa uninervia D. F. Howe 1976-7-12 4907 Orange Santa Ana River, Huntington Beach. Comment
  UCR12588  Leptochloa uninervia J. S. Davis 1972-5-6 720506- 5 Orange South Coast, Newport Beach; corner of San Joaquin Hills Road and Back Bay Road 0 Comment
  UCR154263  Leptochloa uninervia Mark A. Elvin 2004-5-2 3420 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA696979  Leptodactylon californicum Keith E. Hoffmaster 1927-4-8 s.n. Orange Santa Ana Mountains Comment
  VVC381  Leptodactylon californicum P. J. MacKay 1990-5-25 xn Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  SEINET3479036  Leptodactylon californicum W. P. Vestal, A. G. Vestal 1955-3-24 3461 Orange El Toro, El Toro, about 5 miles east Comment
  UCR16662  Leptodactylon californicum subsp. leptotrichomum David M. Peterson 1966-3-9 660309- 11 Orange Peninsular Range; Santa Ana Mtns., 13 mi east of San Juan Capistrano on the road to Elsinore 457 Comment
  RSA542450  Leptosiphon androsaceus Fred M. Roberts 1988-4-10 3905 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  POM13830  Leptosiphon androsaceus P. A. Munz 1922-4-29 5035 Orange Leach Canyon, Santa Ana Mts. 610 Comment
  SD251267  Leptosiphon floribundus R. F. Thorne 1977-11-21 49985 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp. Comment
  RSA715700  Leptosiphon liniflorus Fred M. Roberts, Robert L. Allen 2005-10-15 6311 Orange entrance to Falcon Group Camp, 2.1km ESE Los Pinos Peak and 0.3km NE campground. 1008 Comment
  UCR221896  Leptosiphon liniflorus Dick Newell, Don Millar 2010-10-12 42 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Canyon Rd. 0.6 mile due east of Limestone Spur 290 Comment
  RSA550596  Leptosiphon liniflorus Fred M. Roberts 1989-4-26 4318 Orange Mouth of Blind Caynon, 9.4 k SW Sierra Peak, 1.0km N Irvine lake spillway. 219 Comment
  RSA764445  Leptosiphon parviflorus Doris Bowers 1971-4-19 1698 Orange Black Star Canyon Indian Site 762 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
  SEINET3915524  Lepturus cylindricus Louis C. Wheeler 1932-6-25 851 Orange 1/2 mile N Newport Bay.; 0 15 Comment
  RSA234478  Leymus condensatus James Henrickson 1970-7-24 4973 Orange 1.5 miles NW of Huntington Beach along NW facing base of Huntington Beach Mesa bordering Bolsa Chica Salt Marsh. 3 Comment
  RSA51  Leymus condensatus E. R. Johnson 1927-6-10 77 Orange Rancho Santa Ana. Alt 500 ft. 152 Comment
  RSA739779  Leymus condensatus A. C. Sanders, Fred M. Roberts 2008-7-3 35666 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  CDA1076  Limonium binervosum D. G. Kelch 2006-12-9 6 .547 Orange Along Newport Back Bay Dr. in side canyon. Comment
  CDA23090  Limonium binervosum Mark A. Elvin, D. G. Kelch 2006-12-9 5307 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  UCR12584  Limonium californicum J. S. Davis 1972-5-6 720506- 18 Orange South Coast, Newport Beach, 100 yards from the corner of San Joaquin Hills Road and Back Bay Road. 0 Comment
  UCR106280  Limonium perezii B. G. Pitzer, M. Georgiady 1997-4-5 3091 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  UCD64190  Limonium ramosissimum Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Crown Valley Parkway-Pacific Island Drive. 70 Comment
  CAS-BOT-BC226776  Linanthus californicus Helen D. Geis 1902-4-1 s.n. Orange Santa Ana River Canon [Canyon] Comment
  HSC17061  Linanthus californicus S. M. Clapp 1966-4-7 20 Orange Irvine Blvd., S of Lake Irvine 152 Comment
  LA206679  Linanthus californicus C. B. Wolf; 1931-3-6 1831 Orange 1.5 mi below Trabuco Oaks along Trabuco Canyon road, W slope Santa Ana Mts 304 Comment
  RSA468464  Linanthus californicus M. B. Dunkle 1933-3-5 3077 Orange San Juan Canyon. Comment
  RSA734644  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34570 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
  UCR191428  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-4-8 34778 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  POM364568  Linanthus dianthiflorus subsp. dianthiflorus Jean Carnine 1932-3-6 15307 Orange Trabuco Canyon. Comment
  POM36578  Linanthus dianthiflorus subsp. dianthiflorus M. B. Dunkle 1935-2-23 4338 Orange Dana Point. 15 Comment
  UCR193066  Linanthus liniflorus A. C. Sanders, T. B. Salvato 2008-5-13 35337 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
  JEPS58123  Linanthus parviflorus Alice King Orange Santa Ana Comment
  RSA700539  Linaria canadensis var. texana Frances Battey s.n. Orange Orange Co. Park. Comment
  RSA718  Linaria canadensis var. texana J. T. Howell 1928-2-25 835 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA773515  Linaria canadensis var. texana Fred M. Roberts 1999-5-3 5205 Orange Lomas de Santiago: ridge between Limestone Canyon and Santiago Canyon Wash, 0.4 km SE Silverado School, and 3.9 km Bolero Lookout 351 Comment
  RSA733827  Lithophragma affine R. H. McArthur 1934-4-14 s.n. Orange Forks of laguna Canyon Comment
  UC1618102 Image available Lithophragma cymbalaria Donald G. Nelson 1935-7-6 252 Orange San Juan Canyon. North bend of canyon stream Comment
Read comments
Apr 11 2009
  RSA701804  Lobelia dunnii var. serrata Fred M. Roberts 1999-7-22 5249 Orange Lomas de Santiago: Lomas Ridge, tributary to Limestone Canyon at Dripping Springs. Limestone Wilderness Park. 415 Comment
  RSA284  Loeflingia squarrosa J. T. Howell 1928-3-18 893 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  RSA734893  Lolium perenne subsp. multiflorum A. C. Sanders, Mitch Provance 2008-5-20 35419 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile blow Modjeska Canyon confluence. 345 Comment
  UCR193070  Lolium perenne subsp. multiflorum A. C. Sanders, Mitch Provance 2008-5-20 35419 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA0042734  Lolium perenne subsp. multiflorum David Barrios 1991-5-8 34 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA0011621  Lolium rigidum Rankin s.n. Orange Costa Mesa. Comment
  CLARK-A1528-4720  Lolium temulentum John C. Roos 1937-5-21 2068 Orange Santa Ana Comment
  UCD66669  Lolium temulentum R. M. Love 1942-4-16 9 Orange 8 mi. E of Santa Ana. Comment
  SEINET8465373 Image available Lomatium dasycarpum Norman Cooper 1944-6-4 1324 Orange Elsinore Mountain 1067 Comment
  RSA773521  Lomatium dasycarpum subsp. dasycarpum Fred M. Roberts 1999-5-3 5212 Orange Lomas de Santiago: Loma Ridge, Central Limestone Canyon, west slope, 2.2 km NW Bolero Lookout and 0.8 km NE Bolero Spring. 397 Comment
  RSA0105318  Lomatium lucidum Anonymous 1960-5-30 s.n. Orange On a rocky ridge at the head of Hagadon Canyon. Santa Ana Mountains. 1067 Comment
  RSA0105951  Lomatium lucidum Alan Romspert 1998-5-9 s.n. Orange Gypsum Cyn, Fremont Cyn by road, Santa Ana Mountains. Comment
  SEINET6960363  Lomatium utriculatum Wanda P. Vestal, A. G. Vestal 1955-3-24 3464 Orange Trabuco Canyon, about 5 mile east of El Toro. Comment
  SEINET10465145  Lonicera subspicata James S. Miller 1992-5-8 Miller 7451 Orange 2 mi E of the border of Cleveland National on California route 74. 310 Comment
  RSA220958  Lonicera subspicata var. denudata E. W. Lathrop s.n. Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, trabuci District. Comment
  UCSB52454  Lonicera subspicata var. denudata Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills; Carbon Canyon, Carbon Canyon Rd., 0.3 km. by road SW county line; 2.5 km. NW Gilman Peak 260 Comment
  RSA697992  Lotus Pomeroy 1929-4-27 s.n. Orange Trabuco. Comment
  IRVC26711  Lotus argophyllus var. argenteus Mark A. Elvin 2004-4-4 3212 Orange UCI Arboretum Southern Coastal 15 Comment
  UC454692  Lotus heermannii I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  UCR193377  Lotus purshianus A. C. Sanders, Mitch Provance 2008-5-20 35394 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
  RSA220984  Lotus salsuginosus E. W. Lathrop 1966-3-23 6103 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UCR192494  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-3-25 34562 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  POM250346  Lotus scoparius I. W. Clokey 1932-3-1 5329 Orange Laguna Beach. Comment
  UC494724  Lotus scoparius Philip A. Munz 1932-3-29 12187 Orange Costa Mesa Comment
  SEINET2073834  Lotus scoparius R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, top of sand hill. Comment
  IRVC15131  Lotus scoparius subsp. scoparius A. S. Boughey 1968-7-9 404 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UCR252212  Lotus scoparius subsp. scoparius Amanda C. Swanson 2013-4-21 28 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  IRVC2255  Lotus scoparius subsp. scoparius S. Park 1965-4-8 Orange Corona del Mar, between Narcissus Ave. and Marigold Ave. Newport Beach Comment
  RSA725937  Lotus scoparius var. scoparius R. E. Riefner 2006-7-2 06 -277 Orange Costa Mesa, St. Route 73 at 55 Freeway interchange 20 Comment
  UCR193062  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-5-6 35219 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  RSA659547  Lotus strigosus P. Shirokawa 1998-5-7 15 Orange Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  UCR193815  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-7-16 35878 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  IRVC18659  Lotus strigosus var. hirtellus Gordon A. Marsh 1981-4-15 Orange UCI Ecological Preserve; north-facing slope. Irvine 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
  RSA406319  Lotus strigosus var. strigosus M. B. Dunkle 1934-6-18 3971 Orange Upper San Juan Canyon. 610 Comment
  IRVC17284  Lotus strigosus var. strigosus Karlin G. Marsh 1980-5-5 Orange Rancho Mission Viejo: Planning area; along road way. Southern Coastal Comment
  RSA355469  Ludwigia peploides subsp. peploides Harry Elmore 1927-9-14 5989 Orange San Juan Creek, San Juan Capistrano. Comment
  RSA747605  Lupinus bicolor Fred M. Roberts 2000-4-27 5305 Orange Lomas de Santiago: Lomas Ridge, Agua Chinon Wash, 1.5 km S Bolero Spr. and 2.1 km WSW Bolero Lookout. 281 Comment
  RSA794050  Lupinus bicolor subsp. microphyllus Doris Bowers 1971-4-19 1686 Orange Black Star Canyon Indian Site 762 Comment
  IRVC22219  Lupinus bicolor subsp. umbellatus Fred M. Roberts, Gordon Marsh 1985-4-3 1611 Orange Irvine: Irvine Ranch, 1.2km W UCI campus center, Southern Coastal 24 Comment
  RSA542581  Lupinus bicolor subsp. umbellatus Fred M. Roberts 1988-4-10 3904 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  RSA543961  Lupinus concinnus subsp. concinnus Steve D. Boyd 1991-5-9 6192 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  UC527218  Lupinus excubitus C. B. Wolf 1931-3-25 1936 Orange along the Santa Fe R.R. 1 mi w Esperanza (Santa Ana Canyon); Santa Ana Canyon 106 Comment
  IRVC2308  Lupinus excubitus var. hallii B. Mawdsley 1965-5-2 s.n. Orange Cleveland National Forest; Silverado [Canyon]. Santa Ana Mountains Comment
  RSA605683  Lupinus excubitus var. hallii R. S. Woglum 1938-5-8 1619 Orange Peninsular Ranges: Capistrano to Elsinore; Santa Ana Mountains. [Orange / Riverside counties] Comment
  RSA6198  Lupinus excubitus var. hallii Carl B. Wolf 1932-5-27 3699 Orange Santa Fe R R, 1 mile West of Esperanza, Santa Ana Canyon. 107 Comment
  RSA0027775  Lupinus excubitus var. hallii Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49692 Orange Northern Santa Ana Mountains: Sierra Peak 900 Comment
  RSA91198  Lupinus excubitus var. hallii F. W. Peirson 1925-4-10 5740 Orange In Silverado Canyon. 610 Comment
  IRVC2323  Lupinus hirsutissimus A. S. Boughey 1965-6-15 155 Orange Ortega highway; ca. 1.0 mile E of San Juan Guard Station. Santa Ana Mountains 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
  IRVC20367  Lupinus hirsutissimus Fred M. Roberts 1983-3-16 931 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  IRVC22852  Lupinus latifolius var. parishii Fred M. Roberts 1985-6-7 1884 Orange Viejo Canyon, 0.5km N Hwy. 74, 2.5km W Lower San Juan Picnic Ground. santa Ana Mountains 327 Comment
  LA205140  Lupinus latifolius var. parishii Norman C. Cooper; 1944-6-4 1336 Orange San Juan Canyon 548 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
  RSA542381  Lupinus longifolius Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3889 Orange Lomas De Santiago: Lomas Ridge, Santiago Canyon Road, 5.5km NW Silverado Canyon Road Jct. 256 Comment
  RSA542383  Lupinus longifolius Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3888 Orange Lomas De Santiago: Lomas Ridge, Santiago Canyon Road, 5.5km NW Silverado Canyon Road Jct. 256 Comment
  UC1543209  Lupinus longifolius Donald G. Nelson 1935-4-6 218 Orange up San Juan Canyon (n from summer ranger station on main highway, e of San Juan Capistrano, just s of boundary of Cleveland National Forest); just s of boundary of Cleveland National Forest Comment
  RSA183373  Lupinus polycarpus C. Leo Hitchcock 1966-3-15 24135 Orange 1/2 mile E of Brea Comment
  IRVC2305  Lupinus sparsiflorus subsp. sparsiflorus E. P. Cowper 1965-4-3 s.n. Orange Modjeska Canyon Santa ANa Mountains Comment
  POM156682  Lupinus sparsiflorus subsp. sparsiflorus L. R. Abrams 1903-4-19 3277 Orange San Juan Comment
  RSA17206  Lupinus sparsiflorus subsp. sparsiflorus Percy C. Everett 1935-5-6 6754 Orange Rancho Santa Ana. along railroad embankment north of pear orchard. 122 Comment
  RSA542385  Lupinus sparsiflorus subsp. sparsiflorus Fred M. Roberts 1988-3-15 3871 Orange Rancho Mission Viejo: Central Gabio Canyon, 7.0 km E Playa Survey Marker. 162 Comment
  RSA649056  Lupinus sparsiflorus subsp. sparsiflorus D. E. Bramlet 2000-4-21 2991 Orange Ridge 488m northeast (above) the MWD access road. the site is 1.3 km west of Blind Canyon and 640m north of Irvine Park. 268 Comment
  IRVC20366  Lupinus sparsiflorus subsp. sparsiflorus Fred M. Roberts 1983-3-16 932 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  RSA414281  Lupinus sparsiflorus subsp. sparsiflorus E. Crow 1929-4-7 301 Orange Corona skyline Drive, Santa Ana Mts Comment
  SEINET10490976  Lupinus sparsiflorus subsp. sparsiflorus LeRoy R. Abrams 1903-4-19 Abrams 3277 Orange Sandy soil along railroad, near san juan. Comment
  UCR262009  Lupinus succulentus Dick Newell, Don Millar 2015-2-17 388 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Haul Road 0.5 mi. east of 241 Toll Rd./Foothill Transp. Corridor 311 Comment
  IRVC2357  Lupinus truncatus A. S. Boughey 1965-6-15 149 Orange Ortega highway; ca. 1.0 mile E of San Juan Guard Station. Santa Ana Mountains Comment
  UCR192498  Lupinus truncatus A. C. Sanders, Fred M. Roberts 2008-3-25 34566 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC19963  Lupinus truncatus Gordon A. Marsh, Karlin G. Marsh 1983-4-14 s.n. Orange Laguna Canyon: Sycamore Hills, N sector, road edge Southern Coastal 146 Comment
  RSA699024  Lycium J. R. Bruff 1927-3-16 2 -R Orange Newport Bluff Comment
  UCR251743  Lycium brevipes var. hassei R. E. Riefner Jr. 2014-4-12 14- 77 Orange South Coast, City of San Clemente, San Clemente State Beach, SSW c. 100 m from the intersection of Ave. Califia and South Ola Vista Rd. 40 Comment
  POM4211  Lycium californicum D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  UC303755  Lycium californicum I. M. Johnston 1918-5-5 1949 Orange Laguna Beach Comment
  IRVC29712  Lycopersicon esculentum Mark A. Elvin, Barry S. Nerhus 2006-11-4 5248 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  SD241893  Lythrum adsurgens Lawrence M. Booth 1932-7-19 1282 Orange Bolsas Marsh. Comment
  RSA0014845  Lythrum californicum Scott D. White 1997-6-12 5315 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  UC73416  Lythrum californicum E. A. Zumbro 1902-1 389 Orange Orange County Comment
  SEINET12197184  Lythrum californicum S. A. Thompson, Rawlins, J. E. 1988-8-27 5263 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  UCR193437  Lythrum hyssopifolia A. C. Sanders, Fred M. Roberts 2008-5-6 35238 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  UCSB25001  Lythrum hyssopifolia Booth, L. 1932-7-19 Orange Bolsas Creek Comment
  RSA708724  Madia gracilis Fred M. Roberts, Robert L. Allen, Chris M. Barnhill, Nancy Hatfield 2005-5-30 6224 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  SD234830  Madia gracilis A. C. Sanders, Mitch Provance 2008-5-20 35390 Orange Peninsular Range: Santa Ana Mountains: Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence (El Toro 7.5' Q) 366 Comment
  UCR18628  Madia gracilis John C. Roos 1960-5-30 s.n. Orange Peninsular Ranges; Santa Ana Mtns, ridge at head of Hagador Canyon 1070 Comment
Read comments
Jan 7 2013
  CAS-BOT-BC206259  Malacothamnus fasciculatus R. F. Hoover 1968-6-10 11172 Orange Laguna Beach Comment
  POM201634  Malacothamnus fasciculatus L. M. Booth 838 Orange Santa Ana Canyon. Comment
  POM220268  Malacothamnus fasciculatus F. M. Reed 1929-06 6534 Orange Between Newport and Huntington Beach Comment
  RSA433315  Malacothamnus fasciculatus F. R. Fosberg 1931-6-21 S- 5096 Orange Lower Santiago Canyon. Comment
  UCR228805  Malacothamnus fasciculatus Dick Newell, Don Millar 2011-5-10 150 Orange Peninsular Range; Santa Ana Mtns., along MWD service road between Outdoor Education Center and Fremont Canyon, 0.2 mi. above Peters Cyn. Rd. 193 Comment
  UCR98122  Malacothamnus fasciculatus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1652 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
  SBBG83229  Malacothamnus fasciculatus var. fasciculatus B. Pitzer, L. F. LaPre 1986-10-20 322 Orange Trabuco Rd at intersection with Sand Cyn Avenue, NW of El Toro Marine Air Station 79 Comment
  CDA23124  Malacothrix saxatilis Mark A. Elvin, D. G. Kelch 2006-12-9 5328 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 500 meters northeast of road to CA Department of Fish and Game office. Comment
  UCR191228  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
  UCR3184  Malacothrix saxatilis Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  RSA703645  Malacothrix saxatilis var. saxatilis R. E. Riefner Jr. 1999-8-21 99 -360 Orange Laguna Beach, west of Pacific Coast Hwy., vicinity of Aliso Creek Park and south to West Drive. 15 Comment
  IRVC29796  Malacothrix saxatilis var. tenuifolia Mark A. Elvin, Dean Kelch 2006-12-9 5328 Orange Newport Backbay; along Bayside Drive ca. 500 m NE of road to CA Dept Fish and Game office. Southern Coastal 3 Comment
  POM6233  Malacothrix saxatilis var. tenuifolia D. L. Crawford 740 Orange Aliso Canyon Comment
  RSA0027428  Malacothrix saxatilis var. tenuifolia Fred M. Roberts 2013-7-18 7661 Orange San Joaquin Hills: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill. 52 Comment
  RSA234493  Malacothrix saxatilis var. tenuifolia James Henrickson 1970-7-25 5039 Orange 2.5 miles NE of Huntington beach, 1 mile SE of Warner Ave. on sandy slope of E. Pacific Coast Hwy. at border of Bolsa Chica Salt Marsh. 0 Comment
  RSA549990  Malacothrix saxatilis var. tenuifolia Scott D. White 1992-9-23 857 Orange Vicinity of Olinda, near city of Brea, immediately N of Carbon Cyn Rd & E of Placentia Ave.; ca. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  IRVC841  Malacothrix saxatilis var. tenuifolia D. Frees 1965-3-27 Orange Newport Beach; East Bluffs. Southern Coastal Comment
  IRVC3285  Malosma laurina Fred M. Roberts, K. G. Marsh 1985-7-18 2057 Orange Temple Hill, Goff Ridge, 0.9km NE Goff Island off Nye Place Laguna Beach 168 Comment
  RSA447  Malosma laurina J. T. Howell 1927-7-16 415 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SD236159  Malosma laurina A. C. Sanders, Fred M. Roberts 2008-6-17 35462 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge on Hicks Canyon Haul Road, c. mideway between Foothill Transportation Corridor and Santiago Cyn. Rd. 334 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
  HSC15991  Malva parviflora D. W. Snell 1964-3-22 2 Orange 1/2 mi. S of Imperial Hwy., 1 mi. W of Yorba Linda. Comment
  RSA734957  Malva parviflora Keith E. Hoffmaster 1927-1-9 455 Orange Santa Ana Comment
  HSC79313  Malva parviflora W. R. Marsh Aug 1972 37 Orange Between Artesia and Buena Park, E side of Artesia Ave., 1.5 mi. NW of Western Ave. 23 Comment
  RSA5574  Malva parviflora Carl B. Wolf 1932-6-28 3768 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  JEPS68666  Malvella leprosa Lawrence M. Booth 1932-7-21 1296 Orange Anaheim Creek Comment
  POM202032  Malvella leprosa L. M. Booth 1932-6-9 1174 Orange Santa Ana River, 0.5 mile from ocean Comment
  IRVC26530  Manfreda Mark A. Elvin 2004-5-22 3460 Orange UCI Arboretum Southern Coastal 15 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
  RSA441223  Marah macrocarpa E. S. Spalding 1923-1-1 s.n. Orange Laguna Beach. Comment
  SEINET7072488  Marah macrocarpa A. G. Vestal 1963-3-27 s.n. Orange About 1.8 miles up Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  RSA441221  Marah macrocarpa Albert J. Perkins 1913-2-13 s.n. Orange Peralta. Comment
Read comments
Jun 16 2012
  RSA748270  Marrubium vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35511 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  HSC14233  Marrubium vulgare D. W. Snell 1964-3-3 30 Orange 1 mi. E of Brea on Deadora Rd. 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
  RSA657745  Marrubium vulgare Ken Greby 1985-5-17 36 Orange behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  UCSB48088  Marrubium vulgare Roberts, Fred 1981-5-2 Orange Camino Capistrano, 1.7km N Crown Valley Parkway 49 Comment
  RSA665955  Marsilea vestita Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5426 Orange Rancho Mission Viejo: South of San Juan Creek, 0.6km WNW Median Rancho Survey Marker., PCR Vernal Pool 2. 183 Comment
  UC1532996  Matricaria discoidea Robert F. Thorne 1975-4-5 45566 Orange near Irvine and coast; San Joaquin Marsh Comment
  UC1292308  Matricaria occidentalis C. L. Hitchcock and C. V. Muhlick 1964-3-17 23065 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  JEPS13969  Matthiola incana D. L. Crawford 1922-8-3 743 Orange Aliso Point; Laguna Beach Region, Aliso Point Comment
  UC1075898  Matthiola incana E. K. Balls 1955-4-4 20423 Orange w end of Newport Beach Newport Beach 3 Comment
  POM476  Matthiola incana D. L. Crawford 1916-8-3 743 Orange Aliso, Laguna Beach Region. Comment
  POM7620  Meconella denticulata P. A. Munz, R. D. Harwood 1920-4-25 6719 Orange Shady hillside by road in Silverado Canyon, Santa Ana Mts. 549 Comment
  RSA797820  Meconella denticulata Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49809 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  IRVC2371  Medicago polymorpha D. Van Gorden 1965-5-2 s.n. Orange Anaheim and Meyer Field. Costa Mesa Comment
  IRVC2372  Medicago polymorpha Robin Hobson 1965-4-10 s.n. Orange Santa Ana Heights; 2431 Mesa Dr. Southern Coastal Comment
  SD168149  Medicago polymorpha J. B. Anderson 1966-4-16 581 Orange Corona Del Mar; Buck Gully-Little Corona Beach. Comment
  UCD107893  Medicago polymorpha Ira L. Wiggins 1966-3-4 20492 Orange Shoulder of Peralta Ave. near junction of Newport Freeway and Riverside Highway. Comment
  UCD107895  Medicago polymorpha Ira L. Wiggins 1966-3-22 20539 Orange About 5 miles above Ranger Station, Cleveland National Forest, Silverado Canyon. Comment
  UCR103219  Medicago polymorpha Scott D. White 1997-2-19 4692 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA746484  Medicago rigidula R. E. Riefner Jr. 2008-5-1 08 -73 Orange City of San Juan Capistrano, San Juan Creek area, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  IRVC10699  Medicago sativa B. T. Gittins 1963-4-20 177 Orange Jamboree and Palisades. Newport Beach Comment
  RSA398  Medicago sativa J. T. Howell 1927-7-27 498 Orange Near ranch, Rancho Santa Ana 152 Comment
  RSA755558  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-5-6 35258 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  SBBG126176  Medicago truncatula A. C. Sanders with F. M. Roberts 2008-3-25 34521 Orange Weir Cyn, 4 mi ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
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Feb 28 2016
  UCD170851  Medicago truncatula A. C. Sanders; Fred M. Roberts 2008-5-6 35258 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro. 470 Comment
  UCD170853  Medicago truncatula R. E. Riefner Jr. 2011-5-20 11 -55 Orange South Coast, city of San Clemente, Avenida La Pata one block west of Calle Extremo at entrance to Richard Steed Memorial Park. 161 Comment
  CAS-BOT-BC414241  Melaleuca viminalis R. E. Riefner, Jr. 2014-7-13 14 -242 Orange City of Seal Beach, N side of Westminster Blvd., ca. 0.2 mi W of Road B 5 Comment
  RSA542365  Melica imperfecta Fred M. Roberts 1988-4-8 3896 Orange Lomas de Santiago: Loma Ridge, Central Linestone Canyon, 4.1 kilometers NNW Bolero Lookout. 323 Comment
  UCR192224  Melica imperfecta A. C. Sanders, Fred M. Roberts 2008-5-6 35265 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
  IRVC23313  Melilotus albus Fred M. Roberts 1985-7-23 2065 Orange Irvine; San Diego Creek between E Yale Loop and Jeffrey Rd. Southern Coastal 35 Comment
  IRVC2395  Melilotus albus D. W. Bryant 1965-3-28 s.n. Orange Laguna Canyon; Laguna Canyon Rd. Southern Coastal Comment
  IRVC2396  Melilotus albus Pat Rolfe 1965-4-24 s.n. Orange Ortega Highway. Santa Ana Mountains Comment
  IRVC2398  Melilotus albus L. Aldis 1965-4-24 Orange Huntington Beach; Stater Ave. Southern Coastal Comment
  IRVC2403  Melilotus albus Janet Morgan 1965-3-22 s.n. Orange San Clemente; Elmore Ranch. Southern Coastal Comment
  IRVC24248  Melilotus albus Fred M. Roberts, G. A. Marsh 1985-10-25 2505 Orange Santa Ana River; adjacent to Costa Mesa, 1.3km SSW Adams St. bridge, Southern Coastal 2 Comment
  IRVC25059  Melilotus albus Fred M. Roberts 1986-8-21 3053 Orange English Canyon along English Creek just below Trabuco Rd. crossing, c.a. 2.4km E El Toro Fire Station, Mission Viejo 166 Comment
  RSA730996  Melilotus albus Fred M. Roberts 2006-11-15 6470 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  IRVC2414  Melilotus indicus J. B. Anderson 1966-4-12 568 Orange Newport Beach; [Newport] Back Bay. Southern Coastal Comment
  IRVC2416  Melilotus indicus McGuire 1965-3-14 s.n. Orange Newport Beach; Bayside Dr. Southern Coastal Comment
  IRVC2424  Melilotus indicus Ed Hazen 1965-4-27 s.n. Orange Costa Mesa; Victoria St. and Victoria Place. Southern Coastal Comment
  IRVC2426  Melilotus indicus Janet Bryant 1965-3-14 Orange Costa Mesa; Redlands Dr. and Santa Isabel. Southern Coastal Comment
  OBI7999  Melilotus indicus Kurt R. Neisess 1975-12-19 s.n. Orange Yorba Linda Comment
  RSA184136  Melilotus indicus I. L. Wiggins 1966-3-18 20530 Orange California State College at Fullerton. Comment
  RSA688867  Melilotus indicus Fred M. Roberts 2003-5-1 5668 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.49km S Gato Gate and just west of Cristianitos Rd. (San Clemente) 84 Comment
  SEINET12147961  Melilotus indicus Unknown 1933-1 8177 Orange Laguna Beach Comment
  UCSB12537  Melilotus indicus Whittington, M. 1962-4-17 Orange Vacant lot south of Katella Avenue two blocks east of Tustin Avenue Comment
  UCSB48206  Melilotus indicus Roberts, Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.7 km. N Crown Valley Parkway 49 Comment
  RSA594802  Melinis repens Fred M. Roberts, Terasa Bruckenstien 1992-3-19 4837 Orange Rancho Mission Viejo, San Juan Creek east of San Juan Capistrano and just north of Ortega Highway bridge, 3.6 km. SSW Median Rancho Survey Mark., UTM Z11 37 08 900m N, 4 42 100m E 49 Comment
  RSA539391  Mentzelia micrantha Fred M. Roberts, Carol A. Roberts 1988-6-9 4072 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, west slope, 0.5 km NNW summit. 1417 Comment
  RSA759212  Mentzelia veatchiana Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, S face, base of a steep fire break cut from the summit down to the access road. Survey point 61. 1634 Comment
  UCR93934  Mesembryanthemum crystallinum B. G. Pitzer 1996-4-30 2809 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA302143  Mesembryanthemum crystallinum J. R. Shevock 1972-2-18 1339 Orange Bluffs, Newport back bay. 9 Comment
  UCR237912  Mesembryanthemum nodiflorum Mark A. Elvin 2003-2-2 2277 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA232209  Mesembryanthemum nodiflorum James Henrickson 1970-7-24 4981 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA704434  Micropus californicus Fred M. Roberts, David E. Bramlet 2004-4-21 6037 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Shady Canyon, tributary to Cristianitos Cyn., 1.05 km NW Sycamore Gate, 0.94 km W of Cristianitos Road. 158 Comment
  UC1929783  Micropus californicus Scott D. White, Amanda Duchardt 2003-3-27 8860 Orange SANTA ANA MOUNTAIN FOOTHILLS: Canyon bottom and west facing slopes above Canada Gobernadora. Comment
  UCR238212  Microseris douglasii Mark A. Elvin 2003-3-30 2388 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UCR158153  Microseris douglasii subsp. douglasii Adrian Wolf 1998-4-24 166 Orange South Coast, San Joaquin Hills, Shady Canyon, upper section, 2.25 km ENE of Signal Peak, 3 km west of Laguna Lakes 277 Comment
  UCR107842  Microseris douglasii subsp. platycarpha Scott D. White 1998-3-16 6210 Orange University of California, Irvine campus. Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Ave. and new freeway (Bonita Canyon). 37 Comment
  RSA599650  Microseris douglasii subsp. platycarpha Fred M. Roberts 1995-4-21 4931 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.5 km ENE French Hill. 52 Comment
  RSA649067  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2973 Orange Fremont Canyon. The site is 335 m south of the existing access road on the north ridge of the canyon. The site is 1.21km northeast of Santiago Creek. 335 Comment
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Feb 21 2007
  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
  UCR177425  Microseris heterocarpa Scott D. White, Amanda Duchardt 2003-3-27 8850 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  RSA598918  Microseris lindleyi Scott D. White 1997-3-28 4846 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA751989  Microseris lindleyi Fred M. Roberts, Eliza Maher 2008-3-26 6796 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  RSA732280  Mimulus aurantiacus A. C. Sanders 2008-4-29 35134 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  JEPS87320  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1066 a Orange 2.4 mi n and w Hwy 74 (along USFS Road 3S04 )n side of paved loop allowing access to Main Divide Road)); Santa Ana Mts. 950 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
  POM77  Mimulus aurantiacus var. pubescens D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA131398  Mimulus aurantiacus var. pubescens E. K. Balls 1958-6-27 23279 Orange Road to Santiago Peak from Silverado Canyon, 3.8 mi. from gate. 976 Comment
  RSA551147  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1066 -b Orange 2.4 mi. N and W of Hwy 74 along USFS Rd. 3S04 (N side of paves loop allowing access to Main Divide Rd.) 945 Comment
  RSA551152  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1066 -a Orange 2.4 mi. N and W of Hwy 74 along USFS Rd. 3S04 (N side of paves loop allowing access to Main Divide Rd.) 945 Comment
  POM256713  Mimulus aurantiacus var. pubescens W. Pequegnat 1940-6-14 s.n. Orange Trabuca Pk. 1220 Comment
  RSA298665  Mimulus aurantiacus var. puniceus D. C. Michener 1980-5-15 3661 Orange San Juan River drainage. Northwest facing slope in chaparral along unnamed creek. 500 Comment
  LA209132  Mimulus aurantiacus var. puniceus W. E. Pequegnat; 1938-4-16 sn Orange Santa Ana Mountains, Indian Truck Trail 822 Comment
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Apr 10 2016
  UCR228801  Mimulus cardinalis Dick Newell, Don Millar 2011-7-19 210 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs 392 Comment
  UCSB50634  Mimulus clevelandii Roberts, Fred 1982-7-9 Orange Santa Ana Mts; Upper Hot Springs Canyon; 0.1km SW Falcon Group Camp; 2.0km SE Los Pinos Peak 1075 Comment
  RSA727  Mimulus floribundus Thomas Howell 1927-7-27 492 Orange Santa Ana River bottom. Comment
  IRVC28636  Mimulus pilosus Mark A. Elvin 2005-9-2 4491 Orange Santa Ana Mtns: along San Juan Creek, ca. 1.0km upstream from San Juan Hot Springs; off Ortega Hwy (74), near bridge. Peninsular Ranges 259 Comment
  UC41890  Mimulus pilosus W. C. Blasdale July, 1891 Orange Santiago Canyon Comment
  RSA0026064  Mirabilis laevis Betty Smith 1932-4-22 s.n. Orange Peters Canyon. Comment
  POM9829  Mirabilis laevis var. crassifolia P. A. Munz, R. D. Harwood 1920-4-24 3759 Orange Sierra [Freemont] Canyon, Santa Ana Mountains. 366 Comment
  UCR281191  Modiola caroliniana Roger E. Reinke 2011-5-16 s.n. Orange Coastal Plain, Santa Ana, residence at 12782 Bubbling Well Road, backyard, end of driveway 41 Comment
  CAS-BOT-BC219926  Monardella breweri subsp. lanceolata E. K. Balls 1958-6-27 23285 Orange 8 mi. se. from Silverado (Gate), Silverado Canyon, Santa Ana Mts. 1249 Comment
  CAS-BOT-BC249024  Monardella hypoleuca subsp. intermedia A. C. Sanders; Mark A. Elvin 2005-9-2 31613 Orange Santa Ana Mtns.: near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak 998 Comment
  RSA0006611  Monardella hypoleuca subsp. intermedia A. C. Sanders, M. A. Elvin 2005-9-2 31615 Orange Santa Ana Mtns.: upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks. 976 Comment
  UCR158811  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31609 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
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Aug 17 2012
  UCR158815  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31615 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 976 Comment
  UCR193799  Monardella hypoleuca subsp. intermedia A. C. Sanders, Fred M. Roberts 2008-7-3 35683 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  POM257044  Monardella lanceolata var. lanceolata W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  UCSC001506  Monardella macrantha Peter Kamb 1948-6-19 1115 Orange Southeast slope of Santiago Peak Santiago Peak - Santa Ana Mts. 1219 Comment
  RSA16484  Monardella macrantha subsp. hallii Percy C. Everett 1935-6-19 s.n. Orange Main Divide Motorway 1.5 miles below summit of Santiago Peak, E slope. 1311 Comment
  IRVC27048  Monardella viminea Mark A. Elvin 2005-2-8 3989 Orange UCI Arboretum Southern Coastal 15 Comment
  POM147619  Muhlenbergia asperifolia F. M. Reed 1927-9-19 5470 Orange Santa Ana Canon Highway at Peralta Heights 91 Comment
  RSA663203  Muhlenbergia asperifolia R. E. Riefner 2000-3-26 20 -150 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of major stream fork along W. channel drainage 335 Comment
  UCD86558  Muhlenbergia asperifolia F. M. Reed 1927-9-19 5470 Orange Canal Bank, opposite Peralta Heights. 91 Comment
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May 1 2011
  RSA3174  Muhlenbergia microsperma C. B. Wolf 1932-3-8 2689 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  UCD87118  Muhlenbergia rigens R. Tofsrud 1951-4-1 s.n. Orange Orange-San Diego County borders: Santa Ana Mts. 609 Comment
  RSA587118  Muilla maritima R. E. Riefner 1995-4-28 95 -110 Orange San Clemente State Beach. Comment
  UCR48000  Myoporum laetum Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  POM6316  Najas guadalupensis L. T. Street, G. Williams 1919-5-4 2688 Orange Laguna Lakes. [now Big Laguna Lake, San Diego Co.] Comment
  JEPS1400  Nama stenocarpa L. M. Booth 1932-7-1 1235 Orange Anaheim Creek Anaheim Creek (Orange County Coast) Comment
  RSA184087  Nassella lepida I. L. Wiggins 1966-3-2 20487 Orange Roadside, carbon Canyon 1.5 miles above the dam, Orange County Comment
  RSA70  Nassella lepida J. T. Howell 1927-6-9 65 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA732150  Nassella lepida A. C. Sanders, Fred M. Roberts 2008-4-22 35015 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
  RSA734340  Nassella lepida A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34635 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  CAS-BOT-BC260104  Nassella pulchra LeRoy Abrams 1903-4-18 3269 Orange Trabuco Canon [Trabuco Canyon], Capistrano Comment
  CAS-BOT-BC260105  Nassella pulchra John Thomas Howell 1927-6-9 2467 Orange N side, Santa Ana Canon [Santa Ana Canyon] 152 Comment
  RSA184108  Nassella pulchra I. L. Wiggins 1966-3-16 20527 Orange Entrance to Firestone Boy Scout Reservation. Comment
  RSA548874  Nassella pulchra Fred M. Roberts, Dar A. Roberts 1989-3-22 4216 Orange Aliso-Wood Regional Park: Lower Wood Canyon, 3.6km SSE Moulton Peak. 38 Comment
  RSA588802  Nassella pulchra Fred M. Roberts 1990-5-7 4596 Orange Rancho Mission Viejo: Ridge south of Blind Canyon, TRW Lease Holding, 4.9 km NE Clemente Survey Marker. 152 Comment
  RSA689545  Nasturtium officinale R. E. Riefner 2002-5-4 20 -98 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  RSA431564  Nasturtium officinale H. L. Bauer 1929-5-7 s.n. Orange Santa Ana Canyon. Comment
  RSA703643  Nasturtium officinale R. E. Riefner Jr. 2003-11-30 3 -482 Orange Peters Canyon Channel at Alton St., E of Jamboree Rd. near Irvine City Hall. 22 Comment
  RSA603289  Navarretia hamata subsp. leptantha R. E. Riefner 1997-7-18 97 -240 Orange Near Fullerton Nature Park. Comment
  RSA678514  Nemacaulis denudata var. denudata Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1131 Orange Bolsa Chica Beach State Park and Bolsa Chica Ecological Reserve Boundary, alongside Pacific Coast Highway. 3 Comment
  LA9429  Nemacladus ramosissimus LeRoy Abrams; 1903-4-18 3268 Orange Capistrano Comment
  RSA751161  Nemacladus ramosissimus D. E. Bramlet 2008-4-14 4177 Orange Ridgeline in Hicks Cyn. 99m NW of the haul Rd. & 331m N of the Asphalt plant 211 Comment
  UCR191357  Nemacladus ramosissimus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34643 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
  RSA2081  Nemophila menziesii Carl B. Wolf 1931-3-6 1848 Orange Trabuco Canyon, 1 mile below Trabuco Camp Grounds, west slope of Snata ana Mts. 610 Comment
  RSA421356  Nemophila menziesii Gale Sphon 1955-3-13 s.n. Orange Silverado Canyon Comment
  RSA616  Nemophila menziesii J. T. Howell 1928-3-18 889 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  UC484259  Nemophila menziesii C. B. Wolf 1931-3-6 1848 Orange 1 mi below Trabuco Camp Ground (Trabuco Canyon, w slope Santa Ana Mts.); w slope Santa Ana Mts., Trabuco Canyon 609 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
  RSA648655  Nerium oleander R. E. Riefner 2000-8-23 20 -730 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  UC424185  Nicotiana clevelandii Philip A. Munz 1923-4-4 Orange Laguna Beach Comment
  UCR267213  Nicotiana clevelandii Fred M. Roberts, Lee Ann Caranza 2009-4-7 7140 Orange South Coastal Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor 60 Comment
  IRVC28777  Nicotiana glauca Archie F. Iskaq 2006-2-4 3 Orange San Joaquin Marsh; NW Edge of Marsh. Southern Coastal 3 Comment
  LA45882  Nicotiana glauca W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA731971  Nicotiana glauca A. C. Sanders, Fred M. Roberts 2008-4-8 34738 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCD126655  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange Stearns Lease, 1.5 miles east of Brea. Comment
  UCR191471  Nicotiana glauca A. C. Sanders, Fred M. Roberts 2008-4-8 34738 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  JEPS12369  Nicotiana quadrivalvis Alice King Apr 1908 Orange Santiago Creek; Santa Ana Mountains Comment
  UCR229211  Nicotiana quadrivalvis Dick Newell, Peter Wetzel 2011-6-28 199 Orange South Coast, San Joaquin Hills, Willow Canyon, Laguna Coastal Wilderness Park 89 Comment
  RSA5813  Nitrophila occidentalis C. B. Wolf 1932-6-28 3805 Orange Bryant Ranch: Edge of field on Bixby Ave., 300 ft. east of SW corner of NW1/4 of NE 1/4 of Sec. 33. 9 Comment
  POM14399  Nolina cismontana Philip A. Munz, Johnston 1922-5-18 5315 Orange Santa Ana River Canyon, 3 miles south of Orange Co. line Comment
  RSA323273  Nolina cismontana James C. Dice, Wier 1984-9-23 587 Orange Mission Viejo, 1.2 km NW of Lake Mission Viejo, along south edge of Vista del Lago, just west of Canaveras. 275 Comment
  RSA594807  Nolina cismontana Fred M. Roberts, Nowak 1995-4-19 4925 Orange Lower Hot Springs Canyon, San Juan Trail, 0.6 km NW Juan Rancho Survey Mark. 280 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
  UCR113027  Nolina cismontana R. E. Riefner Jr. 2000-3-19 20- 137 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running N and parallel to Black Star Cyn Road 396 Comment
  SEINET4173438 Image available Nolina parryi E. W. Lathrop 1976-1 7506 Orange 4 miles northeastof Lake Irvine, Black Star Canyon, Cleveland Nat'l Forest, Trabuco District Comment
  RSA750901  Nothoscordum gracile A. C. Sanders 2008-7-3 35714 Orange Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  JEPS89240  Nuttallanthus texanus Rimo Bacigalupi and P. C. Hutchison 1962-3-16 8232 Orange 2 mi n of Doheny Beach State Park (along U.S. 101); U.S. 101 Comment
  RSA797353  Oenothera bistorta D. M. McF 1956-4-11 8 Orange Moulton Ranch 152 Comment
  RSA733638  Oenothera dentata Minor Warne 1934-03 s.n. Orange Near El Toro Comment
  RSA785413  Oenothera spiralis Keith E. Hoffmaster 1927-4-5 464 Orange [City of] Newport. Comment
  CDA6653  Oldenlandia corymbosa G. D. Barbe 1973-8-9 1695 Orange Bordier s Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). 0 Comment
  UCR204271  Oncosiphon piluliferum Scott D. White, Jeff Lincer 2003-7-7 9616 Orange Coastal Plains & Basins; South Coastal Plain region, Former El Toro Marine Corps Air Station, East of 'El Toro Marine School' and Irvine Blvd.; site of former dump 140 Comment
  POM279574A  Opuntia X occidentalis Lyman Benson 1950-4-29 14339 Orange South end of San Clemente. Hill 1/2 mile from ocean. 152 Comment
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Oct 21 2009
  POM317734  Opuntia X occidentalis David Walkington 1963-5-17 167 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  RSA696230  Opuntia X occidentalis Keith E. Hoffmaster 1927-6-5 s.n. Orange near Newport Comment
  OBI37758  Opuntia X vaseyi D. J. Pinkava & M. G. McLeod, M. G. McLeod 1970-11-8 312 Orange 1/2 mi E of Warner Airport 914 Comment
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Nov 18 2013
  RSA708238  Orobanche fasciculata Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6233 Orange Southwest arm of Modjeska Peak, 1.2km SW summit, Main Divide Rd. near jct. of road to summit. 1533 Comment
  RSA0070944  Orobanche fasciculata Fred M. Roberts, Carol A. Roberts 1988-6-9 4082 Orange Santa Ana Mountains: Modjeska Peak, 0.9 km SW summit. 1542 Comment
  RSA407957  Orthocarpus purpurascens M. B. Dunkle 1935-2-10 4337 Orange Laguna Creek; Coastal Southern California. 61 Comment
  RSA15943  Orthocarpus purpurascens var. pallidus Percy C. Everett 1935-4-27 6692 Orange Bryant Ranch. NW corner Hansen Rd. and Bryant Ave. 30 Comment
  CAS-BOT-BC254369  Oryza sativa Ira L. Wiggins 1965-11-6 20335 Orange Near railroad right of way, along W side of Atwood Comment
  JEPS13141  Osmadenia tenella Frank W. Peirson 1922-5-18 1353 Orange Santa Ana Canyon 121 Comment
  RSA700250  Osmadenia tenella Fred M. Roberts 2003-5-1 5676 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.5km SSW Gato Gate and 0.1km west of Cristianitos Rd. 99 Comment
  HSC46607  Osmorhiza brachypoda Christopher Davidson 1977-5-18 5618 Orange Santa Ana Mts. Cleveland Nat. Forest. Bear Springs 1220 Comment
  RSA262068  Osmorhiza brachypoda E. W. Lathrop 1966-4-6 6135 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Clevland Nat l Forest. 396 Comment
  RSA684305  Oxalis albicans subsp. californica Fred M. Roberts 2003-3-13 5590 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1,320m NW Sycamore Gate and 880m W Cristianitos Rd. 179 Comment
  UCSB52920  Oxalis californica Roberts, Fred 1983-3-10 Orange Dana Point Headlands: just south of Pacific Coast Hwy, 0.5km northwest Dana Point Harbor; 0.5km WSW Richard Henry Dana School 85 Comment
  UC532157  Oxalis pes-caprae Carl B. Wolf 1934-12-26 6261 Orange 1/8 mi s San Juan Capistrano (in walnut orchard) 30 Comment
  UCR93936  Oxalis pes-caprae B. G. Pitzer, Paul Gomez 1996-4-30 2790 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UCSB48068  Oxalis pes-caprae Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point: hills, 1.0km N Dana Hills High School; 1.9km W Marco Forster Junior High School 100 Comment
  UCR227627  Oxytheca trilobata Robt. L. Allen 2003-6-22 12281 Orange Santa Ana Mountains, along North Main Divide Road, 6.3 road mi north of Falcon Group Campground, c. 2.43 air mi northwest of Los Pinos Saddle 1334 Comment
  POM211376  Paeonia californica Carl B. Wolf 1931-3-6 1842 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  SBBG104117  Paeonia californica B. Pitzer, S. Hemstreet 1992-5-21 1937 Orange St Hwy 74, 1 mi uphill from 2000 ft marker and to the left ca. 1 mi on old paved rd 762 Comment
  UCSB41782  Paeonia californica Soper, Robert 1971-2-27 Orange Trabuco Cyn ca 2 mi. from paved road turn-off 365 Comment
  OBI82297  Pallenis maritima R. E. Riefner 2011-7-1 11 -86 Orange City of Newport Beach, rocky beach between Shorecliff Rd. and Cameo Shores Rd. 2 Comment
  RSA797014  Pallenis maritima R. E. Riefner Jr. 2012-5-25 12 -393 Orange City of Dana Point, rocky shore between Mussel Cove and Salt Creek Beach. 2 Comment
  UCR240183  Pallenis maritima R. E. Riefner Jr. 2012-11-14 12- 551 Orange South Coast, city of Newport Beach, south of Poppy Street/Ocean Blvd., coastal bluff near Little Corona Beach rocky intertidal area 5 Comment
  RSA92454  Panicum capillare F. W. Peirson 1924-10-19 5230 Orange Wintersberg Comment
  RSA731536  Panicum dichotomiflorum subsp. dichotomiflorum R. E. Riefner 2007-9-30 7 -417 Orange City of Yorba Linda, N floodplain of Santa Ana River near Yorba Linda Regional Park. 98 Comment
  CDA2142  Panicum virgatum R. E. Riefner Jr. 2006-9-19 06 -439 Orange City of Anaheim. North side of Santa Ana River channel, Santa Ana Canyon, West (downstream) ca. 1.25 miles from Green River Golf Course. Comment
  RSA752712  Parapholis incurva Fred M. Roberts, Sandra Leatherman, Jennifer S. Pareti 2009-4-14 7148 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  SEINET182347 Image available Parapholis incurva Lawrence M. Booth 1932-5-12 1009 Orange Newport Bay Comment
  UC537118  Parapholis incurva Lawrence M. Booth 1932-5-12 1009 Orange Newport Bay Comment
  UCR179758  Parapholis incurva R. E. Riefner Jr. 2005-7-9 05- 547 Orange South Coast, Huntington Beach, vicinity of Cynthia Dr. and Lavonne Lane along the Santa Ana River 7 Comment
  POM202594  Parapholis incurva L. M. Booth 1932-5-12 1009 Orange Newport Bay. Comment
  UCSB52898  Parietaria hespera Roberts, Fred; Roberts, Dar 1983-3-22 Orange Santa Ana Mtns.: San Juan Canyon, Calif. Rte. 74, south side, 4.3km by road E San Juan Guard Station; 2.3km WNW Sitton Peak 407 Comment
  POM8722  Parietaria hespera var. hespera Philip A. Munz, R. D. Harwood 1920-4-17 3801 Orange Laguna Canyon. 61 Comment
  UCR281841  Parietaria judaica R. E. Riefner Jr. 2017-8-23 17- 430 Orange South Coast, city of Huntington Beach, Sunset Beach, along South Pacific Avenue, vicinity of 17th St. 4 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
  CAS-BOT-BC259734  Paspalum distichum Le Roy Abrams 1901-6-12 1762 Orange Near Westminster Comment
  CAS-BOT-BC259735  Paspalum distichum Frank W. Peirson 1924-5-31 4648 Orange Laguna Canon. 350 Comment
  RSA697733  Paspalum distichum Anonymous 1930-1 2 Orange Bed of Santa Ana river west of Town. Moist sand Comment
  RSA733055  Paspalum vaginatum R. E. Riefner 2007-10-26 07 -459 Orange City of Laguna Niguel, vicinity of La Paz Rd. at Kings Rd. 64 Comment
  RSA733142  Paspalum vaginatum R. E. Riefner 2007-7-23 7 -314 Orange City of Newport Beach, E of Jamboree Rd. at Bayiew Way, San Diego Creek confluence with Newport Bay. Comment
  RSA769300  Paspalum vaginatum R. E. Riefner Jr. 2009-1-2 41892 Orange City of Newport Beach, Upper Newport Bay, Delhi Channel near University Dr. 0 Comment
  UC2061656  Paspalum vaginatum R. E. Riefner Jr. 2009-1-2 09 -10 Orange City of Newport Beach, Upper Newport Bay, Delhi Channel near University Dr. Comment
  UCR237832  Pectocarya linearis Mark A. Elvin 2003-2-2 2262 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  IRVC16237  Pectocarya linearis subsp. ferocula Karlin G. Marsh 1978-3-24 Orange UCI Ecological Preserve, Irvine Comment
  RSA590954  Pectocarya linearis subsp. ferocula Fred M. Roberts, Cathy Novak, D. Bontrager 1991-4-18 4771 Orange Santa Ana Mtns, 0.7km N jct Santiago Canyon Road and Live Oak Canyon Road, 7.7km WSW Modjeska Peak. 411 Comment
  RSA588784  Pectocarya linearis subsp. ferocula Fred M. Roberts, D. Bontrager 1990-4-18 4578 Orange Rancho Mission Viejo: Chiquita Rdge, west of Canada Chiquita, 2.0 km N Median Rancho Survey Marker 152 Comment
  RSA401952A  Pedicularis densiflora Christopher Davidson 1977-5-18 5601 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  RSA548878  Pedicularis densiflora Bernard Jaroslow 1990-4-25 B- 36 Orange Sitton Peak Truck Trail: Trailhead 0.3 mile W of ranger station near hot springs, on Ortega Highway (SR 74) Comment
  UCR188941  Pelargonium X domesticum Robert DeRuff 2004-1 547 A Orange Newport Beach, Upper Newport Bay, Eastbluff North area 25 Comment
  UC185251  Pellaea andromedifolia Mrs. Carlotta C. Hall 1913-5-27 9407 Orange Santiago Canyon Comment
  RSA184141  Pellaea andromedifolia var. andromedifolia I. L. Wiggins 1966-2-4 20420 Orange Trabuco Canyon, about 1/2 mi. above canyon mouth Comment
  RSA640077  Pellaea andromedifolia var. andromedifolia E. Robinson, Crocker 1916-3-29 s.n. Orange Santa Ana Mts. Miller's Canyon, near Murrietta. Comment
  RSA708523  Pellaea mucronata subsp. californica Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6240 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  CDA23575  Pennisetum clandestinum Mark A. Elvin, D. G. Kelch 2006-12-9 5313 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  RSA30341  Pennisetum purpureum E. L. Paddock 1943-7-2 12738 Orange Near Dana Point. Comment
  UCR170142  Pennisetum setaceum Jeffrey Ross, R. Zaka, P. Ross 1998-5-2 33 Orange Irvine, San Joaquin Wildlife Reserve, San Diego Creek; highly disturbed wash, sandy with high seasonal variation in water level, c. 5 mi from Pacific Ocean 6 Comment
  RSA0054896  Penstemon antirrhinoides Keith E. Hoffmaster 1931-3-22 524 Orange Santa Ana Mts. Comment
  POM256951  Penstemon grinnellii W. Pequegnat 1940-5-17 s.n. Orange West base of Santiago Peak. 1677 Comment
Read comments
Sep 29 2007
  RSA761802  Penstemon grinnellii Robert Allen 2003-6-22 12271 Orange Northwest-facing flank of Santiago Peak, along North Main Divide Road. 1556 Comment
  RSA797600  Penstemon heterophyllus subsp. australis Robert F. Thorne 1977-11-21 49997 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  UCR26978  Penstemon heterophyllus subsp. australis E. W. Lathrop 1966-4-18 6186 Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  NY661153  Penstemon spectabilis var. spectabilis F. R. Fosberg 1931-6-21 S 5085 Orange Lower Santiago Canyon Comment
  CAS-BOT-BC330339  Pentachaeta aurea Le Roy Abrams 1901-6-13 1787 Orange San Joaquin Hills Comment
  UCSB52875  Pentachaeta aurea Roberts, Fred; Allen, R. 1983-3-27 Orange Dana Point Headlands; north of Dana Strand Rd., 0.5 km. W Dana Point Harbor; 0.7 km. SSW Richard Henry Dana School 79 Comment
  LA204537  Peritoma arborea A. H. Lange; 1951-4-26 sn Orange Balboa Comment
  SD145971  Peritoma arborea var. globosa R. D. Goeden, D. W. Ricker 1965-6-21 Orange Dana Point 60 Comment
  RSA539410  Phacelia brachyloba Fred M. Roberts, Carol A. Roberts 1988-6-9 4089 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, south slope. 0.4km SW summit. 1518 Comment
  RSA497761  Phacelia cicutaria var. hispida M. B. Dunkle 1933-5-30 3577 Orange Santa Ana Canyon. Comment
  RSA734285  Phacelia cicutaria var. hispida A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34627 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 280 Comment
  RSA741475  Phacelia cicutaria var. hubbyi R. E. Riefner Jr. 2008-5-30 8 -123 Orange Near City of Orange, Santiago Creek, vicinity of Jackson Ranch Rd. at Santiago Creek Rd., near the power-line crossing, Irvine Ranch Reserve, Management Area 15. Comment
  RSA738989  Phacelia ciliata Norland 1929-3-16 s.n. Orange Huntington Beach Comment
  RSA12930  Phacelia distans Carl B. Wolf 1935-4-7 6320 Orange Mouth of San Juan Hot Springs Canon, at san juan Hot Springs 213 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
  RSA752042  Phacelia distans Fred M. Roberts 2008-3-27 6806 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  RSA542476  Phacelia distans Fred M. Roberts, T. Sholars 1988-3-29 3877 Orange San Joaquin Hills: Laguna Canyon along Laguna Canyon road, 2kim by road N Pacific Coast Hwy, 2.1km E guna Survey Marker. 34 Comment
  RSA738986  Phacelia hispida Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA697787  Phacelia hydrophylloides J. Russell Bruff 1937-7-3 847 Orange Kaiser Ridge above Huntington. Comment
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Nov 5 2020
  RSA2096  Phacelia imbricata subsp. bernardina E. R. Johnson 1931-6-1 2233 Orange Roundtop, Rancho Santa Ana. 457 Comment
  OBI5992  Phacelia minor Carl B. Wolf 1931-3-6 1830 Orange 1.5 mi below Trabuco Oaks along Trabuco cyn rd, W slope of Santa Ana Mts 305 Comment
  RSA697789  Phacelia minor L. C. Hull 1934-4-24 s.n. Orange Trabuco Canyon. Comment
  RSA735164  Phacelia minor A. C. Sanders, Fred M. Roberts 2008-5-6 35233 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  RSA749521  Phacelia parryi Fred M. Roberts 2008-4-8 6846 Orange Lomas de Santiago: Loma Ridge, Upper Dripping Springs Cyn., 1.0 km NE Bee Peak, Irvine Ranch Conservancy. 458 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
  UCR239629  Phacelia parryi Fred M. Roberts 2012-4-24 7515 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
  UC702949  Phacelia ramosissima var. latifolia John Thomas Howell 1927-6-3 2417 Orange Santa Ana Canyon Southern Puente Hills Comment
  SEINET6088752  Phacelia suaveolens Unknown 2008-6-26 Orange Peninsular Ranges. Santa Ana Mountains. Modjeska Peak, north face. Along access road up Modjeska Peak, outside the sharp bend in the extreme N end of the road. Survey Point # 47. 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
  RSA562734  Phalaris aquatica Steve Boyd, Timothy S. Ross 1992-5-19 7450 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail crossing. 320 Comment
  CAS-BOT-BC250616  Phalaris minor Carl B. Wolf 1932-5-18 3636 Orange Rancho Santa Ana Botanic Garden, near East porch of administration bldg. 198 Comment
  IRVC1782  Phalaris minor J. B. Anderson 1966-4-22 603 Orange San Joaquin Hills: Los Trancos Canyon, along dirt road and near spring. Santa Ana Mountains 122 Comment
  RSA5942  Phalaris minor C. B. Wolf 1932-7-7 3854 Orange Bixby Ave. 0.3 mile east of Los Alamitos Blvd. (250 ft E of SW corner of NE/4 of NE/4 of Sec 31 T4S R11W) 8 Comment
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Apr 10 2014
  POM356937  Phalaris paradoxa Anstruther Davidson 1916-6-1 3156 Orange Brea Ranch Comment
  RSA781939  Phoenix canariensis Mark A. Elvin 2003-2-23 2318 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  POM3742  Pholistoma auritum D. L. Crawford 1916-07 s.n. Orange Laguna Beach region. Comment
  RSA699272  Pholistoma auritum Minor Warne 1934-4-7 s.n. Orange Ladd Canyon Comment
  UCR192980  Phoradendron macrophyllum A. C. Sanders, Fred M. Roberts 2008-6-17 35480 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  POM201795  Phyla lanceolata L. M. Booth 1932-7-1 1238 Orange Anaheim Marsh Comment
  UC25108  Phyla lanceolata A. J. McClatchie 1896-6-20 Orange Westminster Comment
  RSA240375  Phyllospadix torreyi M. Gilmartin 1954-2-11 180 Orange Pansey[?] Point, Laguna Beach. Comment
  RSA33542  Phyllospadix torreyi N. C. Cooper 1942-11-8 2019 Orange Laguna Beach. 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
  UC570695  Physalis crassifolia Herbert L. Mason 1926-4-25 2933 Orange 5 mi s of Laguna Comment
  RSA699075  Physalis philadelphica J. Vlahos 1932-10 s.n. Orange Field by S.A. River Bed. Comment
Read comments
Apr 23 2011
  RSA691  Physalis philadelphica J. T. Howell 1927-7-28 513 Orange West side, Rancho Santa Ana. 152 Comment
  UCR281509  Phytolacca icosandra Mitch Provance, Jeremiah George 2017-3-20 317- 101 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  POM17438  Picris echioides P. A. Munz 1923-4-1 6595 Orange Laguna Lakes. 61 Comment
  POM17834  Picris echioides P. A. Munz 1923-9-7 7772 Orange Tustin 30 Comment
  RSA696194  Picris echioides Anonymous s.n. Orange Santa Ana Comment
  CAS-BOT-BC73333  Pinus attenuata Carl B. Wolf 1934-12-21 6260 Orange N.E. of Sugarloaf Peak (Plesants Pk.), along Main St. Trail, Santa Ana Mts. 1158 Comment
  MACF019826  Pinus attenuata T. Pringle 1966-5-20 124 Orange In Ranch Santa Ana, at the end of Orangethorpe Ave. Yorba Linda in full sun. Comment
  NY34631  Pinus attenuata C. B. Wolf 1934-12-21 6260 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  IRVC2815  Pinus coulteri A. S. Boughey 1965-3-16 58 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  RSA7683  Pinus coulteri C. B. Wolf 1933-11-8 5538 Orange From grove to N.W. of Trabuco Peak. 1250 Comment
  SEINET4672192 Image available Pinus coulteri T. C. Arambula 1966-1 69 Orange Rancho Santa Ana Botanic Garden 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
  UCR231188  Pinus sabiniana A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39944 Orange Peninsular Range; Santa Ana Mountains, Beek's Place on Main Divide Truck Trail 863 Comment
  UCR132891  Piperia cooperi Adrian Wolf 2000-4-14 446 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 0.51 km SSE of Black Star Canyon Mine, North Baker Canyon Road 396 Comment
  JEPS45891  Piptatherum miliaceum Lawrence M. Booth 1932-6-7 1211 Orange Balboa Island Newport Bay Comment
  UCR193465  Piptatherum miliaceum A. C. Sanders, T. B. Salvato 2008-5-13 35352 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
  POM202524  Piptatherum miliaceum L. M. Booth 1932-6-28 1211 Orange Balboa Island, Newport Beach Comment
  UCR188937  Pittosporum undulatum Robert DeRuff 2006-1 566 Orange Newport Beach, Upper Newport Bay, Eastbluff 30 Comment
  RSA699337  Plagiobothrys arizonicus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA732172  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-3-25 34542 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC22199  Plagiobothrys collinus var. fulvescens Fred M. Roberts 1985-4-8 1637 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  UCSB52464  Plagiobothrys collinus var. fulvescens Roberts, Fred 1982-4-2 Orange Laguna Niguel; hills, 3.5 km. ESE Aliso Peak; 3.2 km. ESE Alicia Fire Station, N of Del Avion 100 Comment
  RSA666089  Planodes virginica Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5428 Orange Rancho Mission Viejo: South of San Juan Creek, 0.6km WNW Median Rancho Survey Marker. PCR Vernal Pool 2. 183 Comment
  JEPS37907  Plantago elongata Alice Eastwood and John Thomas Howell 1937-4-24 3936 Orange Dana Point Comment
  UCR152764  Plantago elongata subsp. elongata D. E. Bramlet 2004-3-26 3540 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
  RSA764441  Plantago erecta Doris Bowers 1971-4-19 1684 Orange Black Star Canyon Indian Site 762 Comment
  UCR192214  Plantago erecta A. C. Sanders, Fred M. Roberts 2008-5-6 35253 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
  RSA0057938  Plantago erecta Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49669 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA401986A  Plantago erecta E. S. Spalding 1916-1 s.n. Orange Near Corona. Comment
  CHSC116482  Plantago erecta subsp. erecta R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49653 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UCR193825  Plantago major A. C. Sanders, Fred M. Roberts 2008-7-16 35839 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  RSA232238  Plantago major James Henrickson 1970-8-29 5309 Orange 3 miles NE of Huntington Beach in pasture just N of Bolsa Chica Salt Marsh. 0 Comment
  RSA698384  Plantago major R. H. McArthur 1934-4-14 s.n. Orange Forks of Laguna Canyon. Comment
  RSA725469  Platanus racemosa Fred M. Roberts, Megan Lulow 2007-7-30 6549 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  OBI74895  Plecostachys serpyllifolia Unknown 2009-7-18 09 -151 Orange City of Dana Point, beach near Salt Crk, vicinity of Ritz Carlton Resort 3 Comment
  SD240896  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-6-25 11 71 Orange Cityof Laguna Beach, Woods Cove, vicinity of Ocean Way at Pearl Street. 9 Comment
  UC2061635  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-3-18 07 -153 Orange City of Newport Beach, Dover Beach, Newport Bay, vicinity of Morning Star Ln. and Polaris Dr. Comment
  UC2061642  Plecostachys serpyllifolia R. E. Riefner Jr. 2006-7-26 06 -319 Orange City of Irvine, N side of Irvine Blvd. at SR-133 on-ramp. Comment
  RSA751481  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 -312 Orange City of Laguna Beach, ocean bluff vicinity of West St. and Pacific Coast Highway. 5 Comment
  RSA766068  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-3-18 07 -153 Orange City of Newport Beach, Dover Beach, Newport Bay, vicinity of Morning Star Ln. and Polaris Dr. 3 Comment
  RSA151079  Pluchea odorata P. H. Raven 1961-10-15 16855 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  RSA232234  Pluchea odorata James Henrickson 1970-7-24 4986 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA719408  Pluchea odorata Fred M. Roberts, Robert L. Allen 2006-10-8 6427 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  UCR208347  Pluchea odorata O. F. Clarke 2004-7-19 s.n. Orange South Coast, Newport Back Bay, along Back Bay Dr. 6 Comment
  RSA930  Pluchea odorata J. T. Howell 1927-9-24 751 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  SBBG63434  Pluchea odorata var. odorata M. N. Ackley -Oct-1928 1189 Orange Huntington Beach 8 Comment
  LA203865  Pluchea sericea J. A. Ewan; 1932-7-9 7488 Orange Santa Ana River, 4 mi. below Rincon Comment
  UCR99859  Poa annua Scott D. White 1993-3-5 1129 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA697757  Poa annua Margaret Smart 1934-4-23 s.n. Orange Santa Ana. Comment
  RSA91683  Poa howellii F. W. Peirson 1923-5-6 3491 Orange Trail to Santiago Peak from Holy Jim Canyon. 991 Comment
  RSA699308  Poa pratensis Keith E. Hoffmaster 1927-5-30 33 Orange Santa Ana. Comment
  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
  UCR138440  Poa secunda R. E. Riefner Jr. 2000-4-15 20- 379 Orange Santa Ana Mtns., North Ranch Policy Plan Area Main Divide Road; south of Gypsum Canyon and south of Windy Ridge 518 Comment
  CAS-BOT-BC236338  Poa secunda subsp. secunda R. C. Wenk; et al. 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 441 Comment
  JEPS111463  Poa secunda subsp. secunda J. B. Anderson 1966-5-3 636 Orange Santa Ana Mountains: Silverado Cny., Modjeska Peak road at 4500 ft. elev., along road cuts Comment
  RSA743463  Polycarpon tetraphyllum Fred M. Roberts 2008-7-10 7071 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  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
  UCSB48054  Polycarpon tetraphyllum Fritzke, S.; Roberts, Fred 1982-4-3 Orange Dana Point Headlands: north of Dana Strand Road; 0.5 km. W Dana Point Harbor; 0.8 km. SSW Richard Henry Dana School 80 Comment
  CLARK-A1528-3939  Polygala cornuta subsp. fishiae John C. Roos 1960-5-30 Orange Santa Ana Mountains Comment
  IRVC28203  Polygala cornuta subsp. fishiae A. C. Sanders, Mark A. Elvin 2005-9-2 31611 Orange upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks Santa Ana Mtns. 970 Comment
  RSA0061171  Polygala cornuta subsp. fishiae Robt. Allen, Richard S. Newell, Len Gardner 2006-7-2 s.n. Orange San Joaquin Hills, Laguna Coast Wilderness Park, Laurel Canyon, near trail. 106 Comment
  CAS-BOT-BC402184  Polygala cornuta var. fishiae R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49615 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station, lateral ravine tributary to San Juan Canyon Comment
  IRVC28641  Polygala cornuta var. fishiae Mark A. Elvin, A. C. Sanders 2005-9-2 4496 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA698416  Polygala cornuta var. fishiae Unspecified 1934-05 s.n. Orange Ladd Canyon. Comment
  UCR18431  Polygonum amphibium var. emersum O. F. Clarke 1975-6-27 s.n. Orange San Joaquin Marsh near UCI Comment
  CAS-BOT-BC413753  Polygonum argyrocoleon Carl B. Wolf 1932-9-13 4038 Orange Bryant Ranch: North boundary between Flood Control dike & well in S.E.1/4 Sect. 25; about 1300 ft. W. of N.E. corner of S.E.1/4 Sect. 25 T4S R12W 6 Comment
  UCR158163  Polygonum aviculare Adrian Wolf 1998-5-15 271 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  UCR46714  Polygonum aviculare B. G. Pitzer, D. C. Hawks 1986-12-17 0380 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Santiago Cyn Rd., c. 1.0 mi SW of [Irvine Lake] Santiago Reservoir 305 Comment
  OBI30214  Polygonum aviculare SAW 1971-3-12 3 F Orange Cal State Fullerton Campus 122 Comment
  RSA0051242  Polygonum aviculare Keith E. Hoffmaster 1934-1 491 Orange Santa Ana. Comment
  UC729950  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-6-20 3755 Orange around administration building; Santa Ana Canyon, Rancho Santa Ana 198 Comment
  RSA184163  Polygonum aviculare subsp. aviculare I. L. Wiggins 1965-11-7 20364 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  RSA5970  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-9-13 4043 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike and Well. 6 Comment
  RSA195  Polygonum hydropiperoides J. T. Howell 1927-7-5 268 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  UC729856  Polygonum lapathifolium Carl B. Wolf 1932-7-7 3835 Orange Bixby Ave. 100 ft w Hansen Road; Bryant Ranch Comment
  RSA5941  Polygonum lapathifolium Carl B. Wolf 1932-7-7 3835 Orange Bryant Ranch, along drainage ditch on Bixby Ave. 9 Comment
  RSA689928  Polypodium californicum Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  UCSB47608  Polypodium californicum Roberts, Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Cayon near mouth of Viejo Canyo, below Rte. 74, 2.5km by road ENE San Juan Guard Station, 0.5km WSW Bm 1100 288 Comment
  IRVC21412  Polypodium californicum A. S. Boughey 1969-3-18 s.n. Orange Ortega Highway; 2mi E of San Juan Guard Station. Southern Coastal Comment
  RSA6043  Polypogon australis C. B. Wolf 1932-6-13 3723 Orange Fullerton, Rose Drive 53 Comment
  UCR208342  Polypogon australis O. F. Clarke 2004-4-5 s.n. Orange South Coast, Huntington Beach State Park, near east bathroom 4 Comment
  UCSB48374  Polypogon interruptus Roberts, Fred 1982-5-22 Orange Dana Point; jct. of Stone Hill Dr. & Selva Rd., 1.0 km. ESE Dana Hills High School; 1.7 km. SW Marco Forster Junior High School 40 Comment
  IRVC14877  Polypogon monspeliensis Gordon A. Marsh, Karlin G. Marsh 1976-7-8 s.n. Orange San Clemente: Pacific Ocean beach, along railway, near W. Escalones and W. Mariposa Ave. southern coastal Comment
  IRVC1813  Polypogon monspeliensis C. Hooven 1965-4-10 s.n. Orange Spruce and Palisades (sic). southern coastal 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
  IRVC22745  Polypogon monspeliensis Fred M. Roberts 1985-5-15 1806 Orange San Joaquin Hills: Laguna Canyon; Laguna Lakes, northernmost pond, south margin, 5km ENE Signal Peak. southern coastal 114 Comment
  IRVC8402  Polypogon monspeliensis J. B. Anderson 1966-4-17 593 Orange Newport Beach: along roadside ditch in field NE of Newport Harbor High School. southern coastal Comment
  UCR100453  Polypogon monspeliensis B. G. Pitzer 1996-4-30 2773 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR102003  Polypogon monspeliensis B. G. Pitzer 1997-3-25 3037 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  UCSB48109  Polypogon monspeliensis Roberts, Fred 1981-4-12 Orange Santa Ana Mtns.: San Juan Canyon, Hwy. 74, 1.3 km. by road E San Juan Guard Sta., 0.9 km. SE Juan Rancho Survey Marker 295 Comment
  UCSB48202  Polypogon viridis Roberts, Fred 1981-6-26 Orange Santa Ana Mts., San Juan Canyon, 0.1 km. N Lower San Juan Picnic Ground 390 Comment
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Jan 25 2021
  RSA714396  Populus balsamifera subsp. trichocarpa R. E. Riefner 2006-4-8 6 -111 Orange South Coast: San Juan Capistrano (city), San Juan Creek at La Novia Ave. 22 Comment
  POM360778  Populus fremontii Marcus E. Jones 1930-3-3 26533 Orange Santa Ana Mountains. Comment
  RSA731918  Populus fremontii subsp. fremontii Fred M. Roberts, Sandra Leatherman 2007-11-27 6661 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  CAS-BOT-BC474727  Populus trichocarpa R. E. Riefner, Jr. 2014-11-21 14 -388 Orange City of Lake Forest, Aliso Creek, S 0.15 mi from Trabuco Rd. 145 Comment
  RSA542355  Populus trichocarpa Fred M. Roberts Jr. 1987-5-12 3437 Orange Santa Ana River: Horseshoe Bend, 3.9km S San Juan Hill; 1.0km ENE Wier Canyon Road bridge. 104 Comment
  RSA725795  Populus trichocarpa R. E. Riefner 2006-9-16 06 -434 Orange Yorba Linda, north of Chapman Ave. c. 1 mile along floodplain of Santa Ana River. 98 Comment
  UCR26999  Porophyllum gracile E. W. Lathrop 1966-4-18 6188 Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  CAS-BOT-BC445243  Portulaca oleracea Ira L. Wiggins 1965-11-3 20313 Orange East side of California State College campus, between State College Blvd and Placentia Avenue, Fullerton. Comment
  CAS-BOT-BC445244  Portulaca oleracea Ira L. Wiggins 1965-11-7 20360 Orange Vacant lot between State College Blvd. and Troy High School campus, Fullerton. Comment
  RSA1307  Portulaca oleracea J. T. Howell 1928-9-17 s.n. Orange Rancho Santa Ana 152 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
  RSA780828  Potentilla glandulosa subsp. glandulosa Sandy Leatherman 2011-5-16 2011 -15 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
  SD255271  Prunus avium Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49828 Orange Santa Ana Mountains: Trabuco Canyon, ca. 8 km east of Trabuco Oaks Comment
  UC1128385  Prunus ilicifolia A. Lewis Apr 1934 384 Orange Harding Canyon; Cleveland National Forest 762 Comment
  CAS-BOT-BC356380  Pseudognaphalium beneolens Frank W. Peirson 1923-9-7 4042 Orange Santiago Peak, Holy Jim Canon [Canyon] trail Comment
  JEPS29201  Pseudognaphalium biolettii Rimo Bacigalupi and P. C. Hutchison 1962-3-16 8235 Orange 2 mi n Doheny Beach State Park; U.S. Highway 101 Comment
  RSA697115  Pseudognaphalium biolettii Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  UCR50083  Pseudognaphalium biolettii B. G. Pitzer, D. C. Hawks 1986-10-21 347 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
  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
  UCR138385  Pseudognaphalium luteoalbum Scott D. White, Brian Leatherman 1997-6-12 5313 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  UCSB48107  Pseudognaphalium luteoalbum Roberts, Jr., Fred 1981-4-12 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, 1.3 km. by road E San Juan Guard Station; 0.9 km. SE Juan Rancho Survey Marker 295 Comment
  MACF020379  Pseudotsuga macrocarpa B. Thomas 1967-12-22 57 - Orange Santiago Park; Santa Ana Mountains 1523 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
  SD245373  Psoralea macrostachya Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49564 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along creek. Comment
  UCR174219  Pteridium aquilinum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33034 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  POM18129  Pteridium aquilinum var. pubescens P. A. Munz 1923-9-7 7735 Orange Santa Ana Mountains: on trail from Trabuco Canyon to Santiago Peak 1219 Comment
  RSA792936  Pulicaria hispanica R. F. Thorne 1984-1 s.n. Orange Newport Back Bay Comment
  RSA750903  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-7-3 35710 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR211082  Pulicaria paludosa Joseph Cahill 2009-8-21 3172 B Orange South Coast, Bolsa Chica Ecological Reserve 1 Comment
  UCSB52444  Pulicaria paludosa Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach; Upper Newport Backbay, near jct. of Back Bay Dr. and San Joaquin Hills Rd., 2.6 km. E Newport Harbor High School Comment
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Dec 12 2018
  UCD47707  Quercus X acutidens James Trumbley 1980-1 s.n. Orange Crystal Cove State Park, ca. 1 mile inland, in Moro Canyon, a coastal canyon between Laguna Beach and Corona del Mar, Orange County, California. 30 Comment
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Oct 11 2017
  RSA12361  Quercus X grandidentata E. R. Johnson 1934-1-6 5561 Orange Santa Ana Mts., on slopes of Sierra Peak at about the head of Claymine Canyon. 762 Comment
  UCR131878  Quercus agrifolia J. Mallory, V. McCoy 1995-7-3 6454- 96 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-BC86440  Quercus berberidifolia P. C. Everett; E. R. Johnson 1937-11-30 9379 Orange Santa Ana Mts., Bold Meadow at head of Claymine Canyon on slopes of Sierra Peak 762 Comment
  RSA0013913  Quercus berberidifolia Fred M. Roberts 2012-5-10 7583 Orange Jan Joaquin Hills; Buck Gully, south fork, norht slope of Pelican Hill, along Pelican Hills Dr., 0.3 km N summit Pelican Hill 189 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
  RSA642704  Quercus berberidifolia R. E. Riefner Jr. 2000-3-18 20 -136 Orange Cleveland National Forest. Ridge-top E of Fremont Canyon and W of Hidden Valley. eastern part of Section 24. 732 Comment
  RSA735034  Quercus berberidifolia Scott D. White, Justin M. Wood 2008-4-10 11850 Orange Chino Hills: Powerline access road just N of CHSP boundary and just W of Orange/SB co. line. Approx. 1 mi. NW of Gilman Peak. 366 Comment
  UCR119802  Quercus berberidifolia R. E. Riefner Jr. 2000-6-22 20- 572 Orange Santa Ana Mountains, North Ranch Policy Plan Area, NE property, along National Forest boundary, at powerline 756 Comment
  RSA0041589  Quercus berberidifolia E. R. Johnson 1934-1-6 5565 Orange Santa Ana Mts., on slopes of Sierra Peak at about the head of Claymine Canyon. 762 Comment
  RSA763061  Quercus chrysolepis E. W. Lathrop 1968-5-22 6931 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon. 396 Comment
  RSA684303  Quercus engelmannii Fred M. Roberts, David E. Bramlet 2003-3-13 5597 Orange Donna O'Neill Land Conservancy: Shady Cyn. tributary to Cristianitos Canyon, 1,200m NW Sycamore Gate and 914m W Cristianitos Rd. 177 Comment
  RSA702211  Quercus engelmannii Fred M. Roberts, Robert L. Allen 2004-1-16 6019 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.15km W of Cristianitos Rd. 92 Comment
  CAS-BOT-BC487559  Quercus ilex R. E. Riefner, Jr. 2014-11-21 14 -393 Orange City of Lake Forest, English Canyon, Aliso Creek, S of Cherry Ave., end of 2nd St., Aliso Creek Bikeway 135 Comment
  IRVC16580  Quercus kelloggii Gordon A. Marsh, Karlin G. Marsh 1976-12-15 s.n. Orange Santa Ana Mtns: Silverado Truck Trail, 0.2 mi. N of Main Divide jctn. Peninsular Ranges 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
  UCR240165  Quercus suber R. E. Riefner Jr. 2012-11-18 12- 555 Orange South Coast, city of Irvine, San Joaquin Wildlife Sanctuary, South Loop Trail, north of San Diego Creek, west of Campus Drive 8 Comment
  UC5709  Quercus wislizeni W. H. Brewer Jan 1861 137 Orange Santa Ana Mountains Comment
  RSA750068  Rafinesquia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35326 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
  POM293  Ranunculus californicus D. L. Crawford s.n. Orange Near Laguna Beach Comment
  IRVC1127  Raphanus raphanistrum J. Pierce 1965-4-16 Orange Corona del Mar. Newport Beach Comment
  IRVC1161  Raphanus sativus L. Stilgenbauer 1965-4-10 Orange Corona del Mar, 339 Milford Dr.; in canyon. Newport Beach Comment
  RSA658474  Raphanus sativus J. Berkley 1994-4-19 5 Orange Yorba Linda, off Bastuchury Rd. about 50 yds from Casa Loma Ave. Comment
  RSA399208  Reseda alba Albert J. Perkins 1912-05 s.n. Orange escape from cultivation- Mignonette, Santa Ana Comment
  UCR125475  Rhamnus alaternus Roger E. Reinke 2003-2-18 s.n. Orange South Coast, Newport Back Bay, Big Canyon 30 Comment
  RSA581437  Rhamnus californica subsp. californica Fred M. Roberts, Gordon Marsh 1989-5-21 4355 Orange Santa Ana Mountains: small tributary canyon to Santiago Canyon, Flemming Regional Park, just E of Modjeska, ca. 3.3 km WSW Laurel Springs. 451 Comment
  LA207818  Rhamnus ilicifolia P. C. Everett; 1935-6-17 7138 Orange Santa Ana Mountains, Coldwater Canyon, 0.5 mi. above Glen Ivy Resort 457 Comment
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Jan 23 2015
  RSA734987  Rhamnus ilicifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35297 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  RSA790661  Rhamnus ilicifolia Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49703 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UC592829  Rhamnus ilicifolia Carl B. Wolf and E. R. Johnson 1933-11-3 Orange Silverado Canyon, base of Silverado Motorway Santa Ana Mts. 731 Comment
  UCSB21805  Rhamnus ilicifolia Merrill, Roy 1965-4-11 Orange 11.5 mi. on State 74 from U.S. 101, Santa Ana Mts. 274 Comment
  CAS-BOT-BC167877  Rhus integrifolia T. B. Salvato 2010-10-27 5136 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  SD253896  Rhus integrifolia Jim Riley 2013-12-10 133 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  UCR267191  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. 150 meters SE Interpretive Center 50 Comment
  POM9769  Rhus integrifolia P. A. Munz 1921-2-26 4684 Orange Brea Canyon.. 304 Comment
  CAS-BOT-BC167929  Rhus ovata B. Pitzer; S. Hemstreet 1992-5-27 1960 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground 762 Comment
  SEINET10494685  Rhus ovata Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7138 Orange In vicinity of Laguna Beach. Shrub about 4 ft tall. 152 Comment
  RSA696475  Rhus trilobata J. Vlahos 1974-04 s.n. Orange Holy Jim canyon Comment
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Mar 6 2011
  RSA797918  Ribes amarum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49829 Orange Santa Ana Mountains: Trabuco Canyon, ca. 8 km east of Trabuco Oaks 860 Comment
  CAS-BOT-BC93073  Ribes californicum var. hesperium Carl B. Wolf 1930-1-30 1824 Orange Claymine Canyon, Santa Ana Mountains. 457 Comment
  UC1127382  Ribes californicum var. hesperium A. Lewis May 1934 422 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  CAS-BOT-BC173127  Ribes indecorum C. B. Wolf 1931-3-6 1833 Orange 1 1/2 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  PASA2253  Ribes indecorum Frank W. Peirson 1925-4-11 Orange Silverado Canyon, Santa Ana Mountains 914 Comment
  RSA439664  Ribes indecorum M. B. Dunkle 1938-3-26 5235 Orange San Juan Canyon. 30 Comment
  UCR240082  Ribes indecorum Dick Newell, Don Millar 2012-5-22 259 Orange Peninsular Range; Santa Ana Mtns., on Lake View Rd. above Irvine Lake at State Spur Rd. 564 Comment
  RSA0021661  Ribes indecorum J. D. Olmsted 1960-2-22 1103 Orange Drainage area to Black Star Canyon. Near CP at Beacon Pines Ranch. 854 Comment
  CAS-BOT-BC168944  Ribes malvaceum James R. Shevock 1978-4-26 5899 Orange Along the divide road, FS 3S04 in the vicinity of Sierra Peak, Santa Ana Mountains, Cleveland National Forest 1097 Comment
  CAS-BOT-BC168945  Ribes malvaceum Ira L. Wiggins 1966-4-11 20419 Orange Trabuco Canyon, along north-easterly facing slope of S side of stream, about 1/2 mi. above mouth of canyon. 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
  RSA0021664  Ribes malvaceum Keith E. Hoffmaster 1931-1-18 518 Orange Santa Ana Mts. Comment
  LA205475  Ribes malvaceum var. viridifolium W. Pequegnat; 1938-4-16 sn Orange Santa Ana Mountains, Indian Truck Trail 853 Comment
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Aug 29 2015
  RSA3132  Ribes malvaceum var. viridifolium B. D. Stark 1932-2-22 2662 Orange Canyon W of Roundtop, Rancho Santa Ana. 457 Comment
  UCSB47637  Ribes malvaceum var. viridifolium Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail; 0.2km west of Trabuco Peak; Santa Ana Mtns 1347 Comment
  SBBG128689  Ribes malvaceum var. viridifolium R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Sierra Peak; Santa Ana Mtns 900 Comment
  UC718384  Ribes roezlii P. C. Everett 1935-6-18 7215 Orange summit Santiago Pk.; Santa Ana Mts. 1731 Comment
  RSA0018261  Ribes roezlii Percy C. Everett 1935-6-18 7215 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  SD255195  Ribes roezlii R. F. Thorne, E. W. Lathrop 1977-5-18 49739 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  RSA353  Ribes speciosum J. T. Howell 1927-6-6 51 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA40800  Ribes speciosum G. R. Campbell 1949-3-4 12816 Orange Claymine Canyon, Santa Ana Mts. Comment
  UC1127567  Ribes speciosum A. Lewis Mar 1934 332 Orange Santa Ana Canyon Corona Quadrangle Comment
  UCR241064  Ribes speciosum Dick Newell, Don Millar 2013-2-26 316 Orange South Coast, Willow Canyon Trail, Laguna Wilderness, 0.4 mi. NW of 133 Hwy and El Toro Rd. 163 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
  OBI7990  Ricinus communis Kurt R. Neisess 1975-12-20 s.n. Orange In the Fullerton Hills area Comment
  RSA446208  Romneya coulteri M. B. Dunkle 1933-5-30 3573 Orange Santa Ana River Canyon Comment
  RSA564318  Romneya coulteri B. Pitzer 1992-5-21 1938 Orange Cleveland National Forest. State Hwy 74, 1 mi uphill from the 2000 ft. marker and to the left c. 1 mi on an old paved road. 762 Comment
  RSA741720  Romneya coulteri R. E. Riefner 2008-3-20 8 -106 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W fork Fremont Canyon, S Donaldson Ranch area. 380 Comment
  RSA0014062  Romneya trichocalyx Fred M. Roberts 2008-5-30 7017 Orange Lomas de Santiago: Santiago Creek wash, south of Irvine Mesa, 1.5 km SE Silverado Sch., Irvine Ranch Conservancy. 326 Comment
  UCR266346  Rorippa palustris D. E. Bramlet 2002-4-14 3265 Orange Laguna Lakes 113 Comment
  RSA499273  Rosa californica Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. Comment
  RSA734658  Rosa californica A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35294 Orange Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir. 277 Comment
  UC1128581  Rosa californica J. B. Spring 1931-3-6 23 Orange Baker Canyon Corona Quadrangle Comment
  SD255272  Rubus ursinus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49789 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UCSC000946  Rubus ursinus Peter Kamb 1948-6-19 1089 Orange Santa Ana Mts., Holy Jim Canyon 610 Comment
  CAS-BOT-BC421793  Rumex conglomeratus Brian Leatherman 1997-6-12 5340 Orange Santa Ana Mtn. foothills. East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 jtn. 75 Comment
  CAS-BOT-BC421794  Rumex conglomeratus John Thomas Howell 1927-6-17 2554 Orange Hills on north side of Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC421795  Rumex conglomeratus Carl B. Wolf 1932-7-2 3823 Orange Carbon Canyon, 1/8 mi. below La Vida Springs. 213 Comment
  CAS-BOT-BC421600  Rumex crispus Scott D. White 1997-3-26 4811 Orange Univ. of Calif. Irvine Campus: Site of proposed student recreation center, east of main campus. Existing Farm School and adjacent grasslands (horse pasture) between California Ave. and Culver Dr. 30 Comment
  RSA749313  Rumex hymenosepalus Fred M. Roberts 2008-3-21 6790 Orange Santa Ana Mtns.: Central Weir Cyn. along Upper Weir Cyn. Rd., 1.3 km ESE Robbers Peak, about 2 km above canyon mouth. 224 Comment
  RSA649684  Rumex pulcher R. E. Riefner 2000-8-17 20 -725 Orange NCCP North Ranch Policy Plan Area. Silverado Creek near Forest Station. 328 Comment
  RSA627778  Rumex salicifolius Scott D. White 1998-3-24 6231 Orange University of California, Irvine Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 24 Comment
  RSA739329  Rumex salicifolius J. Russell Bruff 1931-6-23 s.n. Orange S Fork Santa Ana River Comment
  RSA542460  Rumex salicifolius Fred M. Roberts 1988-4-14 3925 Orange IRVINE: south of the San Diego Freeway, 1.2 km. ENE French Hill. 41 Comment
  IRVC15167  Rumohra adiantiformis Dorleene Van Gorden 1965-5-9 s.n. Orange Silverado Canyon. Peninsular Ranges, Santa Ana Mountains Comment
  RSA539402  Rupertia physodes Fred M. Roberts, Carol A. Roberts 1988-6-2 4045 Orange Santa Ana Mtns: Maple Springs Truck Trail, 11.5km above Silverado Gate, 1.1km NNW Modjeska Pk. 1350 Comment
  HSC25555  Ruppia maritima James Henrickson 1970-7-24 5023 Orange 3 mi. NW of Huntington Beach, Inner Bolsa Bay, along margins of bay 0 Comment
  RSA317355  Ruppia maritima James R. Shevock 1974-5-3 3453 Orange Newport Back bay along Back Bay Drive Comment
  UCR219852  Sagina decumbens subsp. occidentalis Fred M. Roberts 1999-4-26 5201 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, ridge between Limestone Cyn and the Santiago Canyon Wash, 1.7 km SE Silverado School, 2.4 km north Bolero Lookout 411 Comment
  UCR25846  Salicornia bigelovii Wayne R. Ferren 1980-8-27 2329 Orange South Coast, west side of Backbay Drive, c. 1.5 km northeast of Hwy 1, along channel of Newport Backbay, Newport Beach. Comment
  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
  POM201953  Salicornia virginica L. M. Booth 1932-6-9 1182 Orange Newport Bay. Comment
  SEINET6653605 Image available Salicornia virginica Gary Maxwell 1970-1 BC- 3 Orange ca. 4 mi. So. of Seal Beach, NE of Pacific Coast Hwy, at Bolsa Chica 0 Comment
  RSA698842  Salix argophylla Unspecified s.n. Orange Arch beach Comment
  RSA542353  Salix exigua Fred M. Roberts Jr., Gordon Marsh 1987-8-31 3602 Orange Santa Ana River: adjacent to Santa Ana, 0.5 km NE 17th St. bridge. 27 Comment
  SJSU255  Salix exigua C. B. Wolf 1932-4-15 2953 Orange S of pear orchard Rancho Santa Ana near Santa Ana R, Santa Ana Canyon 121 Comment
  CAS-BOT-BC108138  Salix gooddingii John Thomas Howell 1927-7-14 2772 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
  CAS-BOT-BC108141  Salix gooddingii H. D. Geis 1902-1-1 533 Orange Santa Ana Comment
  HSC19941  Salix gooddingii J. W. Johnson 1961-3-29 Orange Newport Beach, S side of upper Newport Bay Comment
  IRVC29700  Salix gooddingii Mark A. Elvin, Barry S. Nerhus 2006-11-4 5241 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  LA208654  Salix gooddingii LeRoy Abrams; 1903-4-16 3256 Orange Santa Ana River, near Orange Comment
  POM2080  Salix gooddingii L. R. Abrams 1913-7-14 5005 Orange Santa Ana River Bridge, near Orange. Comment
  SD1042  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  UCD110999  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA357007  Salix laevigata Robert F. Thorne 1975-4-6 45570 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA6453  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon, at southeast corner of pear orchard. 120 Comment
  UC498104  Salix laevigata L. M. Booth Dec. 1932 1379 Orange near mouth of Santa Ana River (ca. 3/4 mi. from ocean) Comment
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Jul 30 2006
  UC498105  Salix laevigata L. M. Booth Dec. 1932 1380 Orange Newport Beach Comment
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Jun 19 2006
  UCSB52458  Salix laevigata Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills: Carbon Canyon, Carbon Canyon Rd., 0.6km by road SW county line; 2.3km NNW Gilman Peak 76 Comment
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Oct 28 2018
  RSA700179  Salix lasiolepis Minor Warne 1934-2-1 s.n. Orange Santa Ana River bed Comment
  RSA0048653  Salix lasiolepis G. Jentges 1932-2-6 s.n. Orange Wash near railroad track. Comment
  RSA0071935  Salix lasiolepis CNPS Accuracy Assessment Team 2014-4-28 898 .1 Orange Black Star Canyon. Comment
  CAS-BOT-BC126312  Salix sessilifolia Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  RSA700176  Salix sessilifolia Minor Warne 1934-02 s.n. Orange Santa Ana River Comment
  CDA3181  Salsola australis R. E. Riefner Jr. 2006-11-14 06 -672 Orange City of Irvine, San Diego Creek; vicinity of Campus Avenue at University Drive. Comment
  POM713  Salsola tragus D. L. Crawford 1915-09 s.n. Orange Huntington Beach. Comment
  RSA270  Salsola tragus J. T. Howell 1927-7-27 499 Orange Near ranch houses, Rancho Santa Ana 152 Comment
  RSA734986  Salsola tragus A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35282 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCLA55657  Salvia C. Epling and H. Lewis 1940-4-21 Orange 6 mi e San Juan Capistrano Comment
  UCLA55682  Salvia C. Epling and H. Lewis 1940-4-21 Orange 6 mi e San Juan Capistrano Comment
  IRVC26528  Salvia apiana Mark A. Elvin 2004-5-22 3459 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA542480  Salvia apiana Fred M. Roberts, G. A. Marsh, K. G. Marsh 1988-4-26 3941 Orange San Joaquin Hills: Pelican Hill, 0.5km SE summit. 165 Comment
  UCR131891  Salvia apiana J. Mallory, V. McCoy 1995-7-3 6454- 67 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  RSA0006683  Salvia apiana J. T. Howell 1927-6-1 5 Orange Botany Garden, Rancho Santa Ana. [original location] 152 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
  RSA751255  Salvia columbariae A. C. Sanders, Fred M. Roberts 2008-7-16 35876 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon. 358 Comment
  HSC14346  Salvia columbariae J. J. Wagoner 1965-4-11 24 Orange Tucker Bird Sanctuary in Modjeska Canyon 183 Comment
  UCR188943  Salvia leucantha Robert DeRuff 2006-1 564 Orange Newport Beach, Upper Newport Bay, near end of 23rd Street on west side of the Bay 11 Comment
  RSA0014073  Salvia leucophylla Fred M. Roberts 2008-5-28 7012 Orange Lomas de Santiago: Loma Ridge, Haul Road Cyn. (tributary to lower Limestone Cyn.) along Haul Rd. c.a. 0.8 km by road S Santiago Cyn. Rd., 2.6 km N Bee Peak and 3.4 km WNW Silverado Sch. 290 Comment
  SDSU7437  Salvia leucophylla Ruth Haaf, Josephine Morehous 1932-5-28 Orange Carbon Canyon Comment
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Jan 24 2013
  CAS-BOT-BC233669  Salvia leucophylla C. B. Wolf 1943-6-8 11449 Orange Rancho Santa Ana Botanic Garden 198 Comment
  JEPS62752  Salvia mellifera Alice King Apr 1908 Orange Santiago Creek; Santa Ana Mts. Comment
  RSA434144  Salvia mellifera E. A. McGregor 1964-6-4 s.n. Orange On Highway 74, between Elsinor and San Juan Capistrano. 915 Comment
  RSA5278  Salvia mellifera B. D. Stark 1932-12-15 4454 Orange Rancho Santa Ana 145 Comment
  UC1618084  Salvia mellifera Donald G. Nelson 1935-3-17 170 Orange Carbon Canyon Comment
  UCD125591  Salvia mellifera P. B. Kennedy 1925-1-12 7 Orange Irvine Ranch. Comment
  UCR159776  Salvia mellifera Peter A. Bowler 2003-4-20 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh 9 Comment
  UCR252217  Salvia mellifera Amanda C. Swanson 2013-4-21 22 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  POM3988  Salvia spathacea P. A. Munz 1918-5-4 2198 Orange Laguna Canyon. Comment
  CSUSB687  Sambucus cerulea Nancy Robb 1966-4-15 Orange 4 miles southeast of Yorba Linda, 500 yards off Santa Ana Canyon Road. 121 Comment
  RSA650821  Sambucus mexicana Daniel Truong 1991-5-13 6 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  RSA658215  Sambucus mexicana T. A. Daubert 1991-5-26 656 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  UCR193031  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-6-17 35517 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  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
  RSA0127339  Sanicula arguta Fred M. Roberts 2016-3-17 8021 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  RSA590944  Sanicula arguta Fred M. Roberts 1991-5-2 4783 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak. 110 Comment
  POM6326  Sanicula crassicaulis P. A. Munz, L. T. Street, G. Williams 1919-5-3 2636 Orange Santa Ana River Canyon. Comment
  RSA471472  Sanicula crassicaulis Christopher Davidson 1977-5-18 5636 Orange Cleveland National Forest, Falcon campground. 1006 Comment
  JEPS27447  Sarcostemma cynanchoides subsp. hartwegii John Thomas Howell 1927-7-24 2819 Orange Santa Ana Canyon, Rancho Santa Ana 152 Comment
  RSA725514  Schinus molle Fred M. Roberts, Robert L. Allen 2007-9-28 6616 Orange Lomas de Santiago: above lower Santiago Cyn. wash along Santiago Cyn. Rd. just south of Irvine Mesa, 3.3 km N Bolero Lookout. 332 Comment
  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
  RSA650236  Schinus molle Norman Willis 1948-2-8 s.n. Orange Santiago Creek Bed near Orange' 60 Comment
  RSA658195  Schinus molle T. A. Daubert 1991-5-26 674 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. 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
  IRVC21660  Schismus barbatus R. L. Allen, Fred M. Roberts, Jr. 1982-7-4 A 672 Orange Chino Hills: Carbon Canyon, Carbon Canyon Rd. (State Hwy 142), 1.1 - 1.5 mi SW of the San Bernardino County line. Santa Ana Mountains Comment
  RSA0089220  Schismus barbatus Fred M. Roberts 2014-4-21 7862 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  POM202159  Schoenoplectus americanus L. M. Booth 1932-5-30 1134 Orange Bog on south side of Newport Lagoon. Comment
  RSA357010  Schoenoplectus americanus Robert F. Thorne 1975-4-6 45574 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA735750  Schoenoplectus americanus A. C. Sanders, Fred M. Roberts 2008-6-17 35493 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff s Training Facility, just east of Hwy 241 280 Comment
  CHSC26101  Schoenoplectus californicus James Henrickson 1970-7-24 4985 Orange 2 miles NNW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  POM18286  Schoenoplectus californicus I. M. Johnston 1924-7-10 s.n. Orange Laguna Canyon. Comment
  RSA234495  Schoenoplectus californicus James Henrickson 1970-9-5 5330 Orange 3 miles NE of Huntinton Beach just N of Bolsa Chica Salt Marsh. Sea level. 0 Comment
  RSA233015  Schoenoplectus maritimus Christopher Davidson, Gerald L. Benny 1971-6-15 1554 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  CAS-BOT-BC111820  Schoenoplectus tabernaemontani Helen D. Geis 1902-11-1 s.n. Orange Santa Ana Peat lands. Comment
  IRVC29727  Scirpus americanus Mark A. Elvin, Barry S. Nerhus 2006-11-4 5258 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  UCR208888  Scirpus maritimus Jeanne Paxton 1934-4-10 s.n. Orange South Coast, marshes back of Santa Ana Country Club 3 Comment
  RSA542336  Scirpus microcarpus Fred M. Roberts 1988-5-13 3973 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon at spring, 2.5 kilometers NW Bolero Lookout. 428 Comment
  SD212402  Scirpus microcarpus Andrew C. Sanders, Fred M. Roberts, et al 2006-7-20 33022 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
  SD253872  Scirpus microcarpus Jim Riley 2013-10-15 117 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  RSA0135521  Scirpus robustus David E. Bramlet 2005-7-1 3889 Orange Upper Newport Bay, west side of the Bay approximately 61m east of the end of Mariners Drive. Some 611m NW of the Big Canyon area. 0 Comment
  RSA733713  Scrophularia californica Kenneth Beard 1934-05 s.n. Orange Ladd Canyon. Comment
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Oct 31 2011
  RSA0012747  Scrophularia californica subsp. floribunda Fred M. Roberts 2012-5-10 7572 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
  POM4224  Scrophularia californica subsp. floribunda Robinson, Crocker 1916-3-28 s.n. Orange Santa Ana Mts. Comment
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Sep 3 2011
  POM18122  Selaginella asprella Philip A. Munz 1923-9-7 7744 Orange Santiago Peak in Santa Ana Mountains. 1706 Comment
  RSA156020  Selaginella asprella Peter H. Raven 1962-5-18 17755 Orange Santa Ana Mountains: summit of Santiago Peak, Santa Ana Mountains, 1737 Comment
  RSA678518  Selaginella asprella Fred M. Roberts, Kirsten Winter, Leanne Naue 1997-6-5 5041 Orange Santa Ana Mtns.: Modjeska Peak, above Main Divide Truck Trail, 0.5km (aerial) W summit. 1483 Comment
  SEINET179622 Image available Selaginella bigelovii J. T. Howell 1927-7-22 2834 Orange Claymine Canyon Santa Ana Mtns 183 Comment
  UC534969  Selaginella bigelovii John Thomas Howell 1927-7-22 2834 Orange Claymine Canyon; Santa Ana Mts. 182 Comment
  UCR150919  Selaginella bigelovii Valerie Soza, LeRoy Gross 1999-6-7 476 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
  CAS-BOT-BC363249  Senecio Mark A. Elvin 2003-8-24 3011 Orange Southern coastal: San Jaquin [Joaquin] Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road 72 Comment
  RSA539420  Senecio aphanactis Fred M. Roberts 1989-3-7 4200 Orange Lomas de Santiago: Loma Ridge, tributary to Hicks Canyon, 2.1km W Bee Survey Mark, UTM 37 32 300mN, 4 33 150mE, alt. 183 meters. 183 Comment
  RSA650644  Senecio californicus D. E. Bramlet 2000-4-7 2948 Orange Upper Blind Canyon. The site is found beside the SCE maintenance road and 762m west of the mainstem of Blind Canyon. This locality is 1.7km east of Weir Canyon. 354 Comment
  UCSB48048  Senecio flaccidus var. douglasii Roberts, Fred 1981-11-15 Orange Santa Ana Mtns.: San Juan Canyon, Hwy 74, across road from entrance to Lower San Juan Picnic Ground 436 Comment
  RSA641384  Senecio linearifolius Scott D. White 1998-6-26 6783 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  SBBG132983  Senecio linearifolius S. D. White, M. Honer 2004-5-17 10401 Orange ridges and open slopes directly N of intersection of Crown Valley Parkway and Pacific Island Dr; City of Laguna Niguel 61 Comment
  SBBG122031  Senecio linearifolius S. D. White 2003-7-7 9613 Orange W of intersection of Shady Cyn Crk with Bonita Cyn Drive, UC Irvine Campus 70 Comment
  OBI64679  Senecio linearifolius var. linearifolius Scott D. White 2004-7-7 10606 Orange South Coast: Laguna Niguel (Dana Point: T8S R8W S9 Comment
  SD232203  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
  RSA734811  Senecio vulgaris A. C. Sanders, Fred M. Roberts 2008-3-25 34578 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  CAS-BOT-BC364602  Senecio vulgaris Ira L. Wiggins 1966-3-5 20503 Orange Roadside shoulder along Highway S-18, about 4.5 mi. E. of Laguna Beach Comment
  CAS-BOT-BC364603  Senecio vulgaris Ira L. Wiggins 1966-3-31 20569 Orange Shoulder of Associated Road, 200 m. S of Imperial Highway, Fullerton Comment
  CAS-BOT-BC364604  Senecio vulgaris Ira L. Wiggins 1966-2-18 20447 Orange Roadside near end of county road, 1/2 mi. W. of entrance to Rancho Santa Ana Comment
  CAS-BOT-BC364605  Senecio vulgaris Ira L. Wiggins 1966-3-22 20544 Orange Trailside in bottom of canyon, near end of pavement, Silverado Canyon, about 5 mi above Ranger Station, Cleveland National Forest Comment
  RSA184082  Senecio vulgaris I. L. Wiggins 1966-2-18 20447 Orange 0.5 mile west of entrance to Rancho Santa Ana Comment
  IRVC29813  Sesuvium verrucosum Laura D. Lyons, Mark A. Elvin 2006-9-23 427 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
  UCSB52902  Sesuvium verrucosum Roberts, Fred 1983-9-29 Orange Irvine; San Joaquin Freshwater Marsh, 1.6 km. NNW UCI campus center 2 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
  RSA682910  Sidalcea malviflora Scott D. White, Amanda Duchardt 2003-5-1 9159 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  UCR256943  Sidalcea malviflora Naomi Fraga 2009-5-11 2715 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  IRVC26690  Sidalcea malviflora subsp. sparsifolia Mark A. Elvin 2004-4-4 3232 Orange UCI Arboretum Southern Coastal 15 Comment
  SEINET6947338  Sidalcea sparsifolia W. P. Vestal, A. G. Vestal 1955-3-24 3453 Orange Trabuco Canyon, 5 miles east of El Toro. Comment
  CAS-BOT-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
  RSA763518  Silene californica Doris Bowers 1965-5-10 167 Orange Near California State Forestry Office, Orange 152 Comment
  RSA732075  Silene gallica A. C. Sanders, Fred M. Roberts 2008-3-25 34563 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA0013912  Silene laciniata Fred M. Roberts 2012-5-10 7584 Orange San Joaquin Hills: Buck Gully, south fork, north slope of Pelican Hill, along Pelican Hills Dr., 0.3 km N summit Pelican Hill. 189 Comment
  RSA288  Silene laciniata subsp. major J. T. Howell 1927-6-26 217 Orange Claymine Canyon near Sierra Peak 305 Comment
  IRVC15152  Silene multinervia A. S. Boughey 1968-4-23 208 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  RSA16488  Silene verecunda subsp. platyota Percy C. Everett 1935-6-18 16488 Orange Santa Ana Mts., summit of Santiago Pk. 1732 Comment
  IRVC908  Silybum marianum L. Stilgenbauer 1965-4-27 Orange Corona del Mar], Big Corona Beach. Newport Beach 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
  RSA653212  Sinapis arvensis David Barrios 1991-5-1 9 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle. 365 Comment
  UC1929781  Sinapis arvensis Scott D. White, Amanda Duchardt 2003-3-27 8849 Orange SANTA ANA MOUNTAIN FOOTHILLS: Canyon bottom and west facing slopes above Canada Gobernadora. Comment
  IRVC1169  Sisymbrium altissimum T. Baskin 1965-4-9 Orange Corona del Mar High School. Newport Beach Comment
  RSA752717  Sisymbrium altissimum Fred M. Roberts, Sandra Leatherman, Jennifer S. Pareti 2009-4-14 7153 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  IRVC1180  Sisymbrium irio L. Christy 1965-5-3 Orange Corona del Mar. Pacific Dr.? Newport Beach Comment
  UCD115604  Sisymbrium orientale Rimo Bacigalupi 1962-3-16 8229 Orange along U.S. 101, 2 miles north of Doheny Beach State Park. Comment
  RSA366971  Sisyrinchium bellum M. B. Dunkle 1938-3-26 5232 Orange San Juan Canyon 30 Comment
  RSA366973  Sisyrinchium bellum H. L. Bauer 1929-4-20 s.n. Orange Trabuco Canon. Comment
  RSA7579  Sisyrinchium bellum E. R. Johnson 1933-11 2031 Orange Rancho Santa Ana. Comment
  RSA789225  Sisyrinchium bellum Naomi Fraga 2009-5-11 2716 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  RSA651593  Sisyrinchium bellum D. Geisinger, R. Miller, E. Baldwin 1959-3-19 s.n. Orange Santa Ana Canyon Comment
  SEINET237157  Solanum americanum Scott D. White, Brain Leatherman 1997-6-12 5309 Orange Santa Ana Mtn. foothills. East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site 250 Comment
  UC536954  Solanum americanum Lawrence M. Booth 1932-6-28 1213 Orange Bolsas Marsh Comment
  POM8757  Solanum douglasii Philip A. Munz, R. D. Harwood 1920-4-24 3757 Orange Santa Ana Mtns. Sierra [Freemont] Canyon. 366 Comment
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Sep 17 2011
  UCR221897  Solanum douglasii Dick Newell, Don Millar 2010-10-5 41 Orange South Coast, city of Irvine, on Portola Pkwy. 1/4 mile east of Orchard Hills Rd. at Irvine Ranch Conservancy headquarters 95 Comment
  UCR237843  Solanum douglasii Mark A. Elvin 2003-2-2 2272 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCSB41752  Solanum douglasii Rowlands, Peter 1970-3-6 Orange Trabuco Cyn.; approx 2 mi up cyn from O'Neil Park 396 Comment
  POM6347  Solanum umbelliferum Philip A. Munz, L. T. Street 1919-5-3 2650 Orange Santa Ana River Canyon. 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
  RSA5320  Solanum umbelliferum B. D. Stark 1932-12-30 4475 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  UCSB18243  Solanum umbelliferum Daniel, Dick 1964-3-28 Orange Silverado Canyon Road, 5.1 miles NW from junction with Santiago Canyon Road, approximately 10 miles W of Irvine Lake, 17 miles by air E of Orange 365 Comment
  RSA473634  Solidago californica M. B. Dunkle 1934-6-18 3967 Orange Upper San Juan Canyon 610 Comment
  RSA788805  Solidago occidentalis R. F. Thorne 1977-11-21 49982 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  UC284867  Solidago velutina subsp. californica P. A. Munz 1923-9-7 7747 Orange Santiago Peak , Santiago Peak (Santa Ana Mts.) 1645 Comment
  IRVC923  Sonchus oleraceus B. Mawdsley 1965-3-30 Orange east bluff at Mar Vista. Newport Beach Comment
  POM202167  Sonchus oleraceus L. M. Booth 1932-6-15 1193 Orange Marsh border East of Huntington Beach. Comment
  UCR26160  Sonchus oleraceus John C. Roos 1949-10-1 4686 Orange South Coast, Doheny Beach 0 Comment
  CAS-BOT-BC374659  Sonchus oleraceus Ira L. Wiggins 1966-3-5 20514 Orange Field about 1/2 mi. W. of El Toro Post Office, along Highway S-18 Comment
  RSA688866  Sonchus oleraceus Fred M. Roberts 2003-5-1 5669 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.49km S Gato Gate and just west of Cristianitos Rd. (San Clemente) 84 Comment
  RSA721115  Sonchus oleraceus Anonymous s.n. Orange Santa Ana Comment
  CAS-BOT-BC235340  Sorghum halepense John Thomas Howell 1927-7-27 2859 Orange Hills on n. side of Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC235341  Sorghum halepense Helen D. Geis 1902-1-1 557 Orange Unspecified Comment
  RSA733937  Sparganium eurycarpum R. H. McArthur 1934-5-17 s.n. Orange 0.5 mi east Greenville. Comment
  POM146217  Spartina foliosa F. M. Reed 1927-11-25 5676 Orange Anaheim Landing Comment
  UCD92994  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange north limits of Surfside. Comment
  IRVC367  Spergula arvensis E. P. Cowper 1965-4-11 Orange [Newport] Back Bay, Bayside Dr. Newport Beach Comment
  UCR107849  Spergula arvensis Scott D. White, B. Leatherman 1998-1-26 6065 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  RSA184104  Spergula arvensis I. L. Wiggins 1966-3-5 20515 Orange 1/2 mile W of El Toro along Hwy 18 Comment
  RSA696570  Spergula arvensis Elisabeth Norland 1929-3-16 s.n. Orange Costa Mesa. Comment
  UCR4045  Spergularia bocconi Carole Sims 1965-3-28 s.n. Orange San Clemente State Park Beach. Curbside at end of cul-de-sac 6 Comment
  CAS-BOT-BC390857  Spergularia marina Frank W. Peirson 1924-5-31 4658 Orange Laguna Canon [Canyon] Comment
  RSA0098514  Spergularia marina Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1122 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA0098511  Spergularia marina R. F. Thorne 1984-1 s.n. Orange San Joaquin Marsh, Newport Back Bay. Comment
  RSA0098540  Spergularia marina James Henrickson 1970-7-25 5089 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. 0 Comment
  UCSB52392  Spergularia salina Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach; Upper Newport Back Bay, Back Bay Dr., 3.5 km. N San Joaquin Hills Rd.; 3.0 km. W UC Irvine campus 2 Comment
  RSA698116  Sphaeralcea fasciculata R. H. McArthur 1934-4-21 s.n. Orange Gulch W. of Irvine Park. Comment
  UCR236674  Sporobolus indicus Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7106 Orange Peninsular Ranges, Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana River, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river 87 Comment
  UC1618064  Stachys ajugoides Donald G. Nelson 1935-3-23 176 Orange hills n. Fullerton Comment
  UCR144124  Stachys rigida Scott D. White, Amanda Duchardt 2003-4-10 9001 Orange Santa Ana Mountians Foothills, Ridges and E-facing canyons above Trampas Canyon 152 Comment
  SD245402  Stachys rigida subsp. quercetorum Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49583 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA681  Stachys rigida subsp. rigida J. T. Howell 1927-7-3 261 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA725466  Stachys rigida subsp. rigida Fred M. Roberts, Megan Lulow 2007-7-30 6552 Orange lower Fremont Canyon, 0.7 km NNE Irvine Lake spillway, North Irvine Ranch Policy Area. 212 Comment
  RSA588788  Stachys rigida subsp. rigida Fred M. Roberts, Dave Brotrager 1990-4-18 4574 Orange Rancho Mission Viejo: Chiquita Ridge, just west of Canada Chiquita, 2.9 km N Median Rancho Survey Marker 183 Comment
  SEINET9330188  Stachys rigida var. quercetorum Unknown 2011-9-27 39913 Orange Orange Co., CA Comment
  SBBG40460  Stebbinsoseris heterocarpa J. Ingram 1960-3-29 261 Orange 3 mi above O'Neill Park, Trabuco Cyn Comment
  CAS-BOT-BC374782  Stebbinsoseris heterocarpa K. L. Chambers 1954-4-24 482 Orange Hwy. 18-91, Santa Ana Canyon, 7 mi. e. of Olive (hence 11 mi. e. of junction with Hwy. 101 in Anaheim) Comment
  HSC22050  Stellaria media J. W. Johnson 1961-4-2 Orange Newport Beach, along Upper Newport Bay. Comment
  IRVC9287  Stellaria media B. Gittins 1963-3-29 108 Orange corner of Dorothy Lane and State College Blvd. Fullerton Comment
  UCD99453  Stellaria media Ira L. Wiggins 1965-7-5 20368 Orange Orange grove 2 miles east of Atwood, on N side of Orangethorpe Ave. Comment
  UCR13409  Stenotaphrum secundatum William A. Hunt 1972-4-9 720409- 02 Orange South Coast, San Clemente, San Clemente Beach State Park, day use area, bluffs directly overlooking Pacific Ocean 15 Comment
  RSA488125  Stephanomeria cichoriacea Fred M. Roberts 1985-7-26 2096 Orange Santa Ana Mts.: Main Divide Truck Trail, above Falcon Group Camp, 2.2 km ESE Los Pinos Peak 1057 Comment
  JEPS36878  Stephanomeria diegensis L. M. Booth 1933-10-18 Orange Newport Comment
  RSA0044742  Stephanomeria diegensis Fred M. Roberts, Art Davenport 2003-9-11 6010 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
  RSA184185  Stephanomeria diegensis I. L. Wiggins 1965-11-6 20340 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  UCR191359  Stipa coronata A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34645 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
  UCR190978  Stipa lepida A. C. Sanders, Fred M. Roberts 2008-4-22 35015 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  UCR2804  Stipa lepida F. M. Reed 1928-7-10 6579 Orange Sidewalk in Laguna Beach 0 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
  RSA0127417  Stipa pulchra Fred M. Roberts 2016-3-17 8012 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  UCR2802  Stipa pulchra F. M. Reed 1927-1 5474 Orange Cliffs at Arch Beach 15 Comment
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Nov 4 2017
  RSA743376  Stylocline gnaphaloides Fred M. Roberts 2008-4-9 6856 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  POM19056  Styrax redivivus F. W. Peirson 1923-5-5 3493 Orange Trabuco Canyon. 640 Comment
  UC971742  Suaeda calceoliformis L. M. Booth 1932-7-4 1251 Orange Newport Bay Comment
  RSA696273  Suaeda californica Keith E. Hoffmaster 1927-6-5 s.n. Orange near Newport Comment
  SEINET156034  Suaeda californica var. pubescens Norman C. Cooper 1944-11-9 883 Orange Balboa. Comment
  CAS-BOT-BC110387  Suaeda esteroa C. W. Tilforth 1975-9-6 1044 Orange Northeast shoreline of Upper Bay, Newport Beach. Comment
  SD123924  Suaeda esteroa C. W. Tilforth 1975-9-6 1044 Orange Northeast shoreline of Upper Bay, Newport Beach. Comment
  RSA5956  Suaeda moquinii C. B. Wolf 1932-7-7 3850 Orange Bryant Ranch, 600 ft. N of Bixby Ave., 1 mi. W. of Hansen Road., (600 ft. N and 100 ft. W. of S.E. corner of N.E. 1/4 of N.E. 1/4 of Sect. 33) Comment
  CAS-BOT-BC110407  Suaeda taxifolia Allan C. Keller s.n. Orange One mile south of Huntington Beach on U.S. Highway Alternate 101. 1 Comment
  IRVC15182  Suaeda taxifolia H. Smith 1977-4-21 Orange Upper Newport Back Bay, east side, enter from Mesa Dr. and follow drainage ditch. Newport Beach Comment
  POM202053  Suaeda taxifolia L. M. Booth 1932-6-29 1232 Orange Newport Bay. Comment
  RSA18528  Suaeda taxifolia C. B. Wolf 1927-7-23 669 Orange Along the coast just north of San Clemente. Comment
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Jun 3 2013
  SEINET187082  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange Alt. 20 to 40 ft. on cliffs, Doheny Palisades, Highway 101. Comment
  UC1007086  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange on U.S. Highway Alternate 101 one mi s Huntington Beach 1 Comment
  UC1007087  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange Doheny Palisades Doheny Palisades (Highway 101) 6 Comment
  UCR256936  Swertia parryi Naomi Fraga 2009-5-11 2719 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  LA204603  Symphoricarpos mollis W. E. Pequegnat; 1937-8-19 37 Orange Santa Ana Mountains, Trabuco Peak Comment
  RSA303567  Symphoricarpos mollis J. R. Shevock 1971-5-15 1011 Orange Santa Ana Mountains. At Irvine Lake, Santa Ana Mountains. Comment
  UCR3182  Symphoricarpos mollis Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  RSA581436  Symphoricarpos mollis Fred M. Roberts, Gordon Marsh 1989-5-21 4354 Orange Santa Ana Mountains: small tributary canyon to Santiago Canyon, Flemming Regional Park, just E of Modjeska, ca. 3.3 km WSW Laurel Springs. 451 Comment
  RSA0027781  Tauschia arguta R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49678 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  RSA455504  Tauschia parishii Christopher Davidson 1977-5-18 5607 Orange Cleveland National Forest; Santiago Peak (on Orange-Riverside Co. line) 1706 Comment
  RSA506433  Tetradymia comosa Kathy Harper 1988-7-16 s.n. Orange Cleveland National Forest, on Hwy 74 near El Cariso. SE of Hwy Comment
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Oct 15 2013
  RSA0077373  Tetradymi