Search Results — 2000 specimen records retrieved (1588 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
  UC536922  Abronia villosa Lawrence M. Booth 1932-7-30 1341 Orange 2 mi from ocean; Santa Ana River Comment
  POM201770  Abronia villosa var. aurita L. M. Booth 1932-6-25 1308 Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  RSA3226  Abronia villosa var. aurita Carl B. Wolf 1931-7-1 2259 Orange Atwood, lower end of Santa Ana Canyon. 107 Comment
  SEINET10487478  Acacia farnesiana Charlene A. Bennett 1976-7-22 Bennett 443 Orange Cultivated and native plants collected around the San Clemente Beach area. 3 Comment
  SEINET5642646  Acacia saligna Shelby J. Wood 2013-3-6 7 Orange Laguna Hills.; 0 Comment
  HSC79051  Acalypha californica Steve Boyd, L. F. LaPre 1981-5-27 Orange N end of the Santa Ana Mtns., along powerline road on ridges E of Weir Canyon and at the head of Gypsum Canyon Comment
  UC718396  Acer macrophyllum P. C. Everett 1935-6-19 7239 Orange 2 6/10 mi below (w) Summit Truck Trail; Santa Ana Mts., Trabuco Canyon 914 Comment
  UCR234158  Acer macrophyllum Dick Newell, Judy Booth 2012-3-25 234 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  UCSB47994  Acmispon heermannii Roberts, Jr., Fred 1980-7-7 Orange Santa Ana Mtns.; San Juan Canyon, Calif. Rte. 74; 2.2 km. ENE San Juan Guard Station; 0.6 km W Bench Mark 1100 305 Comment
  UCSB52931  Acmispon micranthus Roberts, Jr., Fred 1983-5-19 Orange Laguna Beach: Sycamore Hills, near Laguna Canyon Rds.; 1.6 km. NNE jct. El Toro and Laguna Canyon Rds.; 5.1 km. ESE Signal Peak 130 Comment
  UCD104462  Acmispon strigosus R. Tofsrud 1951-4-25 s.n. Orange Near Orange and L.A. County line on Hwy. 74. Comment
  UC1543097  Acourtia microcephala Donald G. Nelson 1936-6-5 434 Orange hills n Fullerton Comment
  UC537027  Acourtia microcephala Lawrence M. Booth 1932-7-4 1243 Orange Newport Lagoon Comment
  UC639077  Acourtia microcephala P. C. Everett 1939-8-5 Orange Anaheim Comment
  RSA699138  Actaea spicata Unspecified s.n. Orange Brook Bank. Comment
  UCR194558  Adenostoma fasciculatum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35319 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR230219  Adenostoma fasciculatum Dick Newell, Ed Hill 2011-3-29 102 Orange Peninsular Range; Santa Ana Mtns., 200 yards NE of old coal mine, under power lines, off Coal Rd. below intersection with Upper Blind Cyn. Rd. 482 Comment
  UCR252214  Adenostoma fasciculatum Amanda C. Swanson 2013-4-21 24 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  CAS-BOT-BC175450  Adiantum capillus-veneris A. C. Sanders; Fred M. Roberts 2008-7-16 35836 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Dripping Spring off LImestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  POM122866  Adiantum jordanii Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon Comment
  POM188247  Adiantum jordanii Marcus E. Jones 1931-3-23 28426 Orange Laguna Comment
  RSA84993  Adiantum jordanii F. W. Peirson 1924-5-31 4666 Orange 5 miles SE of Laguna Beach. Comment
  IRVC21220  Adiantum jordanii Fred M. Roberts 1964-3-9 1247 Orange cyn, 2.9km NE Median Rancho Survey Mark; 1.6km NW Bench Mark 422, Wagon Wheel Regional Park 165 Comment
Read comments
Aug 1 2009
  POM869  Adiantum jordanii E. Robinson, Crocker 1916-3-28 s.n. Orange Santa Ana Mtns. Comment
  RSA695488  Ageratum houstonianum M. Funakoshi 1941-10-23 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC295625  Agnorhiza ovata P. C. Everett 1935-6-18 7198 Orange Santa Ana Mts., Main Divide Motorway, Los Pinos Potrero 914 Comment
  NY7051  Agoseris cinerea L. Abrams 1901-6-15 1816 Orange Santiago Peak trail. 914.4 Comment
  CAS-BOT-BC13326  Agoseris retrorsa L. R. Abrams 1901-6-15 1845 Orange Santiago Peak Comment
  SEINET13724198  Agropyron parishii J. L. Stevens 1969-5-14 48 Orange Fullerton, just N of CSF on State College Blvd. 183 Comment
  RSA798099  Agrostis exarata R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49570 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  SEINET3237806 Image available Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-7-16 3581 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon. 325 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
  RSA637489  Allium monticola Valerie L. Soza, LeRoy Gross 1999-6-10 509 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off Main Divide Road. 1524 Comment
  RSA548861  Allium praecox Bernard Jaroslow 1990-4-25 B- 37 Orange Sitton Peak Truck Trail: Trailhead 0.3 mile W of ranger station near hot springs, on Ortega Highway (SR 74) Comment
  CAS-BOT-BC402181  Allophyllum glutinosum R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49604 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  UCR231356  Alnus rhombifolia A. C. Sanders, Kent Beaman 2011-9-27 39910 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail, 3.4 km NNW (340 deg. ) of Santiago Peak 1088 Comment
  UCR243182  Alnus rhombifolia Chris E. True 2013-4-22 s.n. Orange Aliso Canyon, Aliso and Wood Canyons Park, south of Aliso Viejo 25 Comment
  CHSC35337  Amaranthus blitoides James Henrickson 1972-10-21 8069 Orange Newport Beach, So. Of Jamboree Rd., E. of Irvine Coast Country Club near U. C. Irvine. Comment
  UCR44905  Amaranthus blitoides B. G. Pitzer, L. F. LaPre 1986-10-20 0314 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  RSA184187  Amaranthus hybridus I. L. Wiggins 1965-11-7 20357 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  IRVC22  Amaranthus retroflexus I. L. Wiggins 1965-11-3 20312 Orange Orange Grove E CSUF campus. Fullerton Comment
  IRVC17986  Amblyopappus pusillus A. B. McGee 1980-9-9 Orange San Diego Creek Channel, adjacent to San Joaquin Freshwater Marsh. Irvine Comment
  IRVC22955  Amblyopappus pusillus Karlin G. Marsh 1986-10-18 Orange Santa Ana Canyon, Featherly Park; in sandy wash. Yorba Linda Comment
  IRVC8603  Amblyopappus pusillus J. B. Anderson 1966-4-16 577 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  UC565480  Amblyopappus pusillus H. L. Mason 1926-4-25 2915 Orange 5 mi s, on the cliffs Laguna Comment
  UCR223966  Amblyopappus pusillus Fred M. Roberts 2008-4-9 6862 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  RSA695490  Amblyopappus pusillus J. Vlahos s.n. Orange Corona Del Mar Comment
  CAS-BOT-BC13767  Ambrosia chamissonis Peter H. Raven 1957-9-28 11370 Orange North limits of Surfside Comment
  CAS-BOT-BC13771  Ambrosia chamissonis David D. Keck 1933-9-8 2541 Orange Sunset Beach Comment
  SD143591  Ambrosia chamissonis R. D. Goeden, D. W. Ricker 1970-4-29 Orange Newport Beach, northwest edge of town between Seashore Dr., Neptune Ave., 56th and 58th streets 2 Comment
  UC450974  Ambrosia chamissonis F. A. MacF. 1931-3-1 87 E Orange Laguna Beach 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
  UCSB10368  Ambrosia chamissonis McElwain, Isabelle 1953-4-25 Orange U.S. 101, 2 mi. S of Huntington Beach Comment
  CAS-BOT-BC45060  Ambrosia psilostachya Ira L. Wiggins 1965-10-27 20304 Orange Roadside just SW of Los Angeles County line along Brea Canyon Road Comment
  CAS-BOT-BC45064  Ambrosia psilostachya John Thomas Howell 1927-9-24 3121 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA749681  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-7-16 35850 Orange Lomas de Santiago, Limestone Canyon 325 Comment
  UCR210370  Ambrosia psilostachya T. B. Salvato, Billy Deane 2006-10-16 1938 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
Read comments
Jul 30 2010
  RSA783652  Ambrosia psilostachya J. D. Olmsted 1959-8-26 835 Orange Along road south of mouth of Black Star Canyon north of Rock Crushing Plant; Drainage area: to Santiago Reservoir. 305 Comment
  POM201704  Ammi visnaga L. M. Booth 1932-7-18 1268 Orange Santa Ana River, 1 mile from Ocean. Comment
  RSA415297  Amorpha californica C. B. Wolf, E. R. Johnson 1933-11-3 5525 Orange Main Divide Motorway Bedford Peak Firebreak and Silverado Motorway. Comment
  CAS-BOT-BC180618  Amorpha californica var. californica P. C. Everett 1935-6-19 7235 Orange 1/2 mi. below (W.) head of canyon, Trabuco Canyon, Santa Ana Mts. 1066 Comment
  CAS-BOT-BC177253  Amorpha fruticosa J. Ewan 1929-6-28 3617 Orange Santiago Canyon, Santa Ana Mts. 365 Comment
  JEPS35488  Amorpha fruticosa John Thomas Howell 1927-6-6 2449 Orange Rancho Santa Ana Santa Ana Canyon, Santa Ana River bottom 152 Comment
  UCR240112  Amorpha fruticosa Dick Newell, Don Millar 2012-5-22 260 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon, 0.4 mi. NE of Irvine Dam spillway 207 Comment
  RSA0090945  Amsinckia eastwoodiae James Snow s.n. Orange Plants of the Bryant Ranch, near Long Beach. Comment
  CHSC10141  Amsinckia intermedia J. W. Johnson 1961-3-16 Orange Newport Beach. On north slope overlooking Upper Newport Bay. Comment
  RSA702989  Amsinckia intermedia D. E. Bramlet, Fred Roberts 2003-3-13 3333 Orange Donna O Neill Reserve. North East ridge of the reserve, 915m W of Cristianitos Rd. & 1.2km N of the E-W access road. 195 Comment
  RSA722351  Amsinckia intermedia Minor Warne 1934-03 s.n. Orange Laguna Canyon Comment
  RSA734899  Amsinckia intermedia A. C. Sanders 2008-5-28 35434 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UC1178236  Amsinckia intermedia Francia Chisaki 1957-4-3 926 Orange 6 mi s Irvine (jus s of El Toro near top of hill on Hwy 101) Comment
  RSA0089442  Amsinckia intermedia Helen D. Geis 1902-03 s.n. Orange Santiago Creek Canyon. Comment
  RSA0089444  Amsinckia intermedia P. A. Munz 1934-3-26 13132 Orange Newport Beach. 15 Comment
  IRVC224  Amsinckia menziesii var. intermedia McGuire 1965-5-1 Orange Corona del Mar. Newport Beach Comment
  RSA708285  Anagallis arvensis Scott D. White, Jennifer H. Jones 2005-3-31 10858 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  RSA789229  Anagallis arvensis Naomi Fraga, Duncan S. Bell 2009-5-11 2712 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  SBBG47539  Anagallis arvensis M. B. Dunkle 1933-4-9 3273 Orange Dana Point Comment
  UCR96318  Anagallis arvensis B. G. Pitzer 1996-4-30 2794 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  POM201808  Anagallis arvensis L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  RSA450866  Andropogon glomeratus Gordon Marsh, Karlin G. Marsh 1978-10-11 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. Comment
  CAS-BOT-BC400332  Anemopsis californica E. Frost 1996-5-11 12 Orange Newport Back Bay, 150 yards in along bike path 7 Comment
  POM201881  Anemopsis californica L. M. Booth 1932-7-19 1280 Orange Bolsas Marsh. Comment
  UC1618061  Anemopsis californica Donald G. Nelson 1935-6-2 320 Orange n of Brea (mouth of Brea Canyon, on Tonner lease); mouth of Brea Canyon Comment
  POM202162  Anthemis cotula L. M. Booth 1932-5-15 1200 Orange Santa Ana River, 1/2 miles from ocean Comment
  RSA734807  Anthriscus caucalis A. C. Sanders, Fred M. Roberts 2008-5-6 35255 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
  POM354855  Antirrhinum coulterianum M. B. Dunkle 1934-6-18 3995 Orange San Juan Canyon; Southern Coastal 305 Comment
  UCR215279  Antirrhinum coulterianum Fred M. Roberts 2008-5-14 6966 Orange Lomas de Santiago, Loma Ridge, upper Bee Flat Canyon below Loma Ridge Road, 1.3 km north of Bee Peak and 5.4 km NW of Bolero Lookout. Irvine Ranch Conservancy 377 Comment
  CLARK-A1528-4161  Antirrhinum coulterianum subsp. orcuttianum John C. Roos 1937-5-10 2082 Orange San Juan Capistrano Comment
  UCR175056  Antirrhinum nuttallianum Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  JEPS4288  Antirrhinum nuttallianum subsp. nuttallianum Lawrence M. Booth 1932-7-7 1260 Orange s of Huntington Beach Comment
  RSA80436  Antirrhinum nuttallianum subsp. nuttallianum F. W. Peirson 1923-5-5 4489 Orange Trabuco Canyon, Santa Ana Mountains 518 Comment
  RSA715705  Antirrhinum nuttallianum subsp. subsessile Fred M. Roberts, Robert L. Allen 2005-10-15 6316 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  UCSB52937  Antirrhinum nuttallianum subsp. subsessile Roberts, Fred 1984-4-29 Orange Laguna Beach; Temple Hill above Laguna Cyn; 6.5km SE Signal Peak; 0.6km E BM 104 195 Comment
  UCR98215  Apium graveolens B. G. Pitzer 1997-4-15 3136 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
  UCR63783  Araujia sericifera Megan Phillips, D. Mitchell 1990-8-3 s.n. Orange Peninsular Range; Santa Ana Mtns., Hicks Canyon wash, Lomas de Santiago, SW of Rattlesnake Reservoir 76 Comment
  RSA797286  Arctostaphylos drupacea Keith E. Hoffmaster 1932-4-17 s.n. Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  RSA629334  Arctostaphylos glandulosa Jon E. Keeley 1992-6-12 15519 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  UCD50872  Arctostaphylos glandulosa H. A. Jensen 1937-11-4 415 Orange At head of Trabuco canyon; Cleveland National Forest. 1188 Comment
  CAS-BOT-BC23110  Arctostaphylos glandulosa subsp. glandulosa P. C. Everett 1935-6-19 7232 Orange Santa Ana Mrs., Main divide Motorway, 7 mi. from summit of Santiago Peak. 1280 Comment
  CAS-BOT-BC402202  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49708 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  IRVC21236  Arctostaphylos glandulosa subsp. glandulosa Fred M. Roberts 1984-2-12 1182 Orange Santa Ana Mtns: 0.1km SW of Falcon Group Camp; 2.0km ESE Los Pinos Peak. Peninsular Ranges 1000 Comment
  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
  RSA629339  Arctostaphylos glandulosa subsp. glandulosa C. J. Fotheringham, Jon E. Keeley 1996-6-24 27642 Orange Ca. 3 km west of Sierra Peak. 700 Comment
  RSA5328  Arctostaphylos glandulosa subsp. zacaensis B. D. Stark 1933-1-4 4486 Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA545  Arctostaphylos glandulosa subsp. zacaensis J. T. Howell 1927-6-26 222 Orange Claymine Canyon, near Sierra Peak. 457 Comment
  UC1302404  Arctostaphylos glandulosa subsp. zacaensis Robert F. Thorne and John Olmstead 1963-7-26 32838 Orange in Tin Mine Canyon above Beek's Spring; Cleveland National Forest, Santa Ana Mts., Trabugo District 609 Comment
Read comments
Apr 25 2011
  UC284866  Arctostaphylos glandulosa subsp. zacaensis P. A. Munz 1923-5-7 7741 Orange slopes above Santiago Peak 1219 Comment
  SEINET10449244  Arctostaphylos hookeri James S. Miller 2001-12-15 Miller 10654 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  SEINET10952165  Arctostaphylos otayensis Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 6 Orange Cleveland National Forest, 2 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
  RSA0025295  Arctotheca prostrata R. E. Riefner Jr. 2013-7-6 13 -125 Orange City of Irvine, Irvine Valley College, Irvine Center Dr. near College St. 37 Comment
  UCR191667  Arctotheca prostrata Robert DeRuff 2004-1 548 Orange South Coast, Newport Beach, Upper Newport Bay, bluff below Eastbluff North 18 Comment
  RSA0054828  Arenaria douglasii Keith E. Hoffmaster 1936-5-3 723 Orange Santa Ana Mts. (Santiago Peak). Comment
  RSA0013972  Argemone munita Fred M. Roberts 2008-5-20 6992 Orange Lomas de Santiago: Santiago Creek wash north of Hanging Man's Tree Road near confluence of Pancho Cyn., 1.6 km NW Bolero Lookout. Irvine Ranch Conservancy. 349 Comment
  UC1040955  Argemone munita Gerald B. Ownbey and Findley Ownbey 1954-7-2 2177 Orange between Modjeski Peak and Santiago Peak 1524 Comment
  UCR215303  Argyranthemum foeniculaceum Fred M. Roberts 2008-3-27 6814 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Outlook 1, 0.5 km west of Marine Institute, Dana Point Harbor 45 Comment
  UCR132566  Aristea capitata Robert DeRuff 1985-5-6 116 Orange Southern Coast, Newport Back Bay, near the old salt works 3 Comment
  RSA0013974  Aristida adscensionis Fred M. Roberts, David E. Bramlet 2008-5-13 6953 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  UCR215291  Aristida adscensionis Fred M. Roberts, D. E. Bramlet 2008-5-13 6953 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  UCSB52874  Aristida purpurea var. parishii Roberts, Fred 1983-4-16 Orange Laguna Beach, Sycamore Hills, central ridge; 1.4 km NNE jct of El Toro and Laguna Cyn Rds; 5.4 km ESE Signal Peak 117 Comment
  CDA23141  Artemisia californica R. E. Riefner Jr. 2006-8-25 06 -410 Orange City of Dana Point, Salt Creek Beach Park, vicinity of Dana Strand Road and Selva Road. Comment
  RSA5382  Artemisia californica B. D. Stark 1932-12-30 s.n. Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA756323  Artemisia californica A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37191 Orange Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  SEINET9345935  Artemisia californica A. Sanders, Burger, Jutta 2009-10-21 37191 Orange Peninsular Range; Santa Ann Mtns.: Lomas de Santiago, lower Hangmans Tree Canyon. Oak woodland (Quercus agrifolia) along wash; area burned fall 2007. Scattered shrubs, road edges and steep bluffs. Comment
  UCR186679  Artemisia californica T. B. Salvato, Katie Kurtz 2006-10-15 1912 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  SEINET3285075 Image available Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-9-18 36075 Orange Peninsular Range; Santa Ana Mtns. Foothills; Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  UCR193794  Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-7-3 35689 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  UCR206790  Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-9-18 36075 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCR228767  Artemisia douglasiana Dick Newell, Don Millar 2011-7-19 205 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon Rd. at junction to Dripping Springs 312 Comment
  UCSB48242  Artemisia douglasiana Roberts, Fred 1981-7-21 Orange Santa Ana Mtns.; 0.7 km. SE Blue Jay Camp Ground 939 Comment
  UC489198  Artemisia dracunculus C. V. Meyer 1928-7-30 597 Orange Saunder's Meadow San Jacinto Mts., Saunder's Meadow 1676 Comment
Read comments
Nov 12 2014
  RSA478873  Arthrocnemum subterminale Anstruther Davidson 1914-10-1 2988 Orange Newport 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
  RSA549704  Asclepias californica Terry J. O Brien 1992-5-23 1204 Orange Cleveland National Forest, trail S of Blue Jay Campgrounds. 1037 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
  SEINET10580457  Asclepias eriocarpa Carl B. Wolf 1936-6-17 Wolf s.n. 1936 Orange Santa Ana Mountains, along Ortega Highway, 5.6 mi above San Juan Capistrano 76 Comment
  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
  CDA39839  Asclepias fascicularis Jack Hill 1957-6-17 s.n. Orange 0 Comment
  SEINET7113596  Asclepias fruticosa M. B. Sady 1996-6-19 s.n. Orange The University of California, Irvine Arboretum, on Campus Drive, UCI Comment
  UCR100449  Asparagus asparagoides B. G. Pitzer 1996-4-30 2787 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR188931  Asparagus densiflorus Robert DeRuff 2007-11-24 s.n. Orange Newport Beach, Upper Newport Bay, along Back Bay Drive between Big Canyon and Eastbluff Drive 3 Comment
  RSA741481  Asphodelus fistulosus R. E. Riefner 2008-5-30 08 -125 Orange Near City of Orange, Santiago Creek, vicinity of Jackson Ranch Rd. at Santiago Creek Rd., Irvine Ranch Reserve, Management Area 15. Comment
Read comments
Feb 28 2016
  RSA686305  Aspidotis californica T. R. Pray 1964-1-1 2051 Orange San Juan Canyon, near first bridge past National Forest entrance Comment
  POM201855  Aster bernardinus L. M. Booth 1933-9-8 1392 Orange Anaheim Marsh. Comment
  POM201791  Aster hesperius L. M. Booth s.n. Orange Newport Beach Comment
  CDA10359  Aster subulatus D. G. Kelch 2006-12-9 6 .567 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA232225  Aster subulatus var. ligulatus James Henrickson 1970-10-3 5360 Orange 3 miles NE of Huntington Beach just N of Bolsa Chica Salt Marsh. 0 Comment
  RSA699979  Astragalus Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  IRVC19366  Astragalus didymocarpus var. didymocarpus R. L. Allen 1975-4-20 Orange San Juan Creek bed, 1.4km N La Novia Bridge, 15km W waters edge. San Juan Capistrano Comment
  IRVC26585  Astragalus didymocarpus var. didymocarpus Karlin G. Marsh 1983-4-11 s.n. Orange Laguna Beach: Sycamore Hills; dirt road surface of central ridge line. southern coastal Comment
  CAS-BOT-BC186731  Astragalus gambelianus Scott D. White; Noel Davis 1998-4-24 6338 Orange Santa Ana Mtn. foothills. Mission Viejo Area: Aliso Creek watershed, east of El Toro Rd. just N of jtn. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow 500 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
  UC284237  Astragalus trichopodus var. lonchus P. A. Munz 1923-9-7 7770 Orange mouth of Trabuco Canyon mouth of Trabuco Canyon (base of limestone cliff) 304 Comment
  RSA415813  Astragalus trichopodus var. lonchus L. C. Wheeler 1931-8-16 s.n Orange Santa Ana River Canyon. 122 Comment
  UC1286978 Image available Astragalus trichopodus var. phoxus C. L. Hitchcock 1966-3-15 24141 Orange Stearns Lease, 1 1/2 miles e. of Brea Comment
  RSA737377  Atriplex amnicola R. E. Riefner 2005-9-9 05 -658 Orange City of Dana Point, beach W of Pacific Coast Hwy and S of Salt Creek near Ritz Carlton Hotel. 8 Comment
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Jul 22 2018
  CDA2883  Atriplex amnicola R. E. Riefner Jr. 2006-8-6 06 -381 Orange City of Newport Beach, Newport Bay, Big Canyon Creek drainage near Back Bay Drive. Comment
  RSA671246  Atriplex amnicola R. E. Riefner 1999-5-22 99 -290 Orange City of Dana Point, beach west of Pacific Coast Hwy. South of Salt Creek near Ritz Carlton Hotel. 15 Comment
  RSA737242  Atriplex amnicola R. E. Riefner 2005-9-16 05 -666 Orange Upper Newport Bay, E of Bayside Dr. at confluence with Big Canyon. 6 Comment
  RSA737473  Atriplex amnicola R. E. Riefner 2006-8-6 6 -381 Orange City of Newport Beach, Newport Bay, Big Canyon Creek drainage near Back Bay Dr. 9 Comment
  RSA743667  Atriplex amnicola R. E. Riefner 2008-5-25 8 -111 Orange City of San Clemente, vicinity of Camino de Los Mares and Calle Nuevo. 45 Comment
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Aug 26 2013
  UC523561  Atriplex argentea var. mohavensis David D. Keck 1933-10-3 2538 Orange 50 m from ocean (Sunset Beach); Sunset Beach Comment
  JEPS59563  Atriplex californica L. M. Booth 1932-5-19 1068 Orange Newport Bay Comment
  POM293160  Atriplex californica Lyman Benson 1946-4-27 12054 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  CHSC26531  Atriplex canescens James Henrickson 1970-7-24 5018 Orange 3 miles NW of Huntington Beach on sandy 'Rabbit' Island in Bolsa Chico Salt Marsh near Inner Bolsa Bay. At south end of sand area. 0 Comment
  JEPS59536  Atriplex canescens L. M. Booth 1932-7-1 1249 Orange Newport Bay Comment
  POM47599  Atriplex canescens I. M. Johnston 1924-8-29 s.n. Orange Corona Del Mar Comment
  RSA260  Atriplex canescens J. T. Howell 1927-10-22 759 Orange Near Eastern Boundary, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC170197  Atriplex canescens subsp. canescens John Thomas Howell 1927-10-22 3161 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  RSA542647  Atriplex coulteri Fred M. Roberts, K. G. Marsh, G. A. Marsh 1988-4-26 3951 Orange Pelican Hill, east slope above Los Trancos Canyon , 0.4km ESE Pelican Hll survey Mark. 200 Comment
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Oct 16 2013
  RSA0028779  Atriplex glauca R. E. Riefner Jr. 2002-5-4 20 -87 Orange City of Dana Point, beach W of Pacific Coast Hwy. near mouth of Salt Creek. 15 Comment
  SD236264  Atriplex glauca D. Bramlet 1994-2-27 2365 Orange Newport Beach 7.5 Quad. Roadside area, some 120 meters east of intersection of Irvine Ave and University Drive, approximately 1 meter south of University Drive. 14 Comment
  RSA743558  Atriplex glauca R. E. Riefner 2006-2-1 6 -30 Orange City of Newport Beach, W side of MacArthur Blvd. near San Joaquin St. 75 Comment
  RSA743661  Atriplex glauca R. E. Riefner 2006-6-20 6 -253 Orange City of Rancho Santa Margarita, W side of SR-241 near Los Alisos Blvd. 292 Comment
  RSA743662  Atriplex glauca R. E. Riefner 2006-6-30 6 -334 Orange City of Rancho Santa Margarita, vicinity of Towne Center Dr. and Alton Pkwy. 291 Comment
  IRVC27506  Atriplex lentiformis Mark A. Elvin 2004-5-2 3423 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA708449  Atriplex lentiformis Mark Elvin 2004-5-2 3423 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  SEINET4135192  Atriplex lentiformis Grant D. Brown 1949-10-9 399 Orange Located 4 miles north of San Clemente at base of coastal bluffs on highway 101.; 0 6 Comment
  POM278962  Atriplex lentiformis subsp. breweri Lyman Benson 1945-1-13 11587 Orange Laguna Beach. 15 Comment
  RSA819108  Atriplex lentiformis subsp. breweri R. F. Thorne 1977-11-21 50821 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA0028771  Atriplex lentiformis subsp. lentiformis Fred M. Roberts 2009-4-21 7112 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  RSA678458  Atriplex leucophylla Valerie Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1117 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UC2030077  Atriplex leucophylla Valerie Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1116 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. Comment
  UCR18895  Atriplex leucophylla John C. Roos 1949-10-1 4677 Orange South Coast, Doheny Beach 0 Comment
  POM631  Atriplex pacifica I. M. Johnston 1918-5-4 1931 Orange Laguna Beach. Comment
  RSA593869  Atriplex pacifica R. E. Riefner, CA Parks Service 1994-5-22 94 -377 Orange San Clemente State Beach, south bluffs Comment
  RSA247  Atriplex pacifica J. T. Howell 1927-7-17 420 Orange Near Laguna Beach. 30 Comment
  RSA65341  Atriplex rosea F. W. Peirson 1924-8-29 s.n. Orange 4 miles south of Santa Ana. Comment
  SEINET4136251  Atriplex semibaccata M. L. Conrad, David B. Dunn 1973-6-13 7124 Orange In vicinity of Laguna Beach.; 0 Comment
  UCR222630  Atriplex semibaccata T. B. Salvato 2010-10-27 5105 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  UCR46567  Atriplex semibaccata B. G. Pitzer, D. C. Hawks 1986-10-21 0344 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
  IRVC29784  Atriplex semibaccata Mark A. Elvin, Dean Kelch 2006-12-9 5296 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA478406  Atriplex semibaccata N. C. Cooper 1942-11-9 889 Orange Balboa. Comment
  RSA5242  Atriplex semibaccata C. B. Wolf 1932-9-13 4030 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd., (Triangle waste ground at NW corner of SW 1/4 sect. 30 T4S R11W) 8 Comment
  RSA696721  Atriplex semibaccata Anonymous s.n. Orange Santa Ana. Comment
  POM201919  Atriplex serenana L. M. Booth 1932-7-4 1255 Orange Newport Lagoon. Comment
  RSA250  Atriplex serenana J. T. Howell 1927-7-5 265 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA5952  Atriplex serenana C. B. Wolf 1932-7-7 3849 Orange Bixby Ave., 0.7 mile W of Hansen road (0.2 mile W of SE corner of NE/4 of NW/4). 8 Comment
  RSA716661  Atriplex suberecta Fred M. Roberts, Amber Oneal 2004-8-18 6094 Orange San Juan Capistrno: Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  UCR143653  Atriplex suberecta Tom Perring, Tracy Pinckard 1994-3-2 s.n. Orange South Coast, Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd. 11 Comment
  RSA703251  Atriplex suberecta R. E. Riefner Jr. 1999-5-22 4 -292 Orange City of Dana Point, west of Pacific Coast Hwy., vicinity of Salt Creek Park and Ritz Carlton Hotel. 15 Comment
  RSA708217  Atriplex suberecta Mark Elvin 2004-5-2 3424 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  RSA65428  Atriplex subspicata F. W. Peirson 1924-10-19 s.n. Orange Wintersberg Comment
  SD133116  Atriplex triangularis A. C. Sanders 1990-10-6 10189 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2.0 km inland of Highway 1. 0 Comment
  UCR211857  Atriplex watsonii Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1100 Orange South Coast, Seal Beach National Wildlife Refuge, Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226) 3 Comment
  UCD56106  Avena barbata A. A. Beetle 1942-4-19 3259 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  POM202370  Avena barbata L. M. Booth 1932-5-12 1040 Orange Newport Bay. Comment
  HSC9025  Avena fatua J. W. Johnson 1961-3-29 Orange Newport Beach Comment
  RSA734680  Avena fatua A. C. Sanders, T. B. Salvato 2008-5-13 35336 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  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
  CAS-BOT-BC66214  Azolla filiculoides John Thomas Howell 1927-7-6 2663 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  CHSC35829  Baccharis emoryi James Henrickson 1972-10-21 8047 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave, just N of Santa Ana River. 60 Comment
  IRVC25196  Baccharis emoryi Fred M. Roberts, Robert Fisher 1986-10-28 3179 Orange Main Divide Truck Trail Extension, 2.3km E Los Pinos Peak, in seep at base of south-facing road cut. Santa Ana Mountains 1030 Comment
  RSA542423  Baccharis emoryi Robb Hamilton 1989-7-31 2 Orange Newport Beach: just W of Newprot Blvd, along Pacific Coast Hwy 5m 5 Comment
  UCSB34207  Baccharis emoryi Wayne R. Ferren, Jr. with F. Roberts 1980-8-27 2342 Orange collected 3.5 km NE, in Newport Backbay, trending NW from Bayside Drive, in Newport Beach. Route 1 - Newport Backbay, Bayside Drive, and Newport Beach Comment
  RSA741699  Baccharis malibuensis R. E. Riefner Jr. 2008-7-17 08 -239 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Rd. 574 Comment
  CAS-BOT-BC99441  Baccharis pilularis Carl B. Wolf 1934-12-26 6262 Orange south end of town of San Clemente 15 Comment
  RSA0028029  Baccharis pilularis Fred M. Roberts 2012-9-6 7702 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, about 1.8 kilometers NW Pelican Hill summit. 64 Comment
  RSA5596  Baccharis pilularis B. D. Stark 1933-1-21 4523 Orange San Clemente Comment
  RSA719421  Baccharis pilularis Fred M. Roberts, Lee Ann Caranza 2006-10-25 6456 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  RSA747711  Baccharis pilularis Fred M. Roberts 2008-9-10 7098 Orange Dana Point: Dana Point Headlands, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. Comment
  SD73484  Baccharis pilularis P. C. Everett 1934-11-7 6246 Orange Rancho Santa Ana Botanic Garden; open hilltop. 199 Comment
  UCR240089  Baccharis pilularis Dick Newell, Don Millar 2012-10-9 304 Orange South Coast, Laguna Canyon, Mule Deer (Upper Laurel) Trail 248 Comment
  RSA0058057  Baccharis pilularis Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49606 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  IRVC21770  Baccharis pilularis subsp. consanguinea Fred M. Roberts 1984-11-27 1442 Orange Novia St. bridge over San Juan Creek, 0.6km S Bench Mark 133, San Juan Capistrano 31 Comment
  CAS-BOT-BC106733  Baccharis salicifolia John Thomas Howell 1927-10-23 3171 Orange Sandy flats of Santa Ana River bottom, Santa Ana Canyon [Canon] 152 Comment
  CDA10394  Baccharis salicifolia D. G. Kelch 2006-12-9 6 .557 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  IRVC28769  Baccharis salicifolia Barry S. Nerhus 2006-2-4 1 Orange San Joaquin Marsh; NW Edge of Marsh. Southern Coastal 3 Comment
  IRVC29766  Baccharis salicifolia Barry S. Nerhus, Mark A. Elvin 2006-11-4 7 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  POM202374  Baccharis salicifolia L. M. Booth 1932-6-9 1179 Orange Santa Ana River, 1 mile from ocean. Comment
  RSA308993  Baccharis salicifolia J. R. Shevock 1976-10-28 5354 Orange Saddle below the summit of Pleasants Peak off FS road 3S04, Santa Ana Mts, Cleveland National Forest 1220 Comment
  UCR100454  Baccharis salicifolia B. G. Pitzer 1996-4-30 2769 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR154338  Baccharis salicifolia Mark A. Elvin 2004-5-2 3414 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCD129479  Baccharis salicifolia subsp. salicifolia B. Pitzer 1996-4-30 2769 Orange Upper Newport Bay: California Department Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 6 Comment
  JEPS21280  Baccharis salicina John Thomas Howell 1927-10-22 3166 Orange Rancho Santa Ana Santa Ana River bottom 152 Comment
  RSA0025299  Bahiopsis laciniata R. E. Riefner Jr. 2013-4-5 13 -56 Orange Anaheim Hills, vicinity of Hidden Canyon Rd. at Avenue de Santiago. 305 Comment
  RSA113261  Barbarea orthoceras E. K. Balls 1955-4-4 20427 Orange 2.7 miles SW from Orange Riverside county line, along Hwy 74, San Juan Capistrano to Elsinore. 305 Comment
  RSA798094  Barbarea orthoceras R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49590 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  CDA7901  Bassia hyssopifolia Adam Ontiveros 2008-7-8 PDR# 1543672 Orange Anaheim, 1750 S. Douglass Rd 0 Comment
  POM122280  Batis maritima Marcus E. Jones 1924-8-26 s.n. Orange Balboa Comment
  UCR240098  Batis maritima Dick Newell 2012-9-29 298 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 2 Comment
  UCR67007  Batis maritima A. C. Sanders 1990-10-6 10195 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  RSA30446  Bebbia juncea Elisabeth Norland 1942-7-3 11283 Orange Rancho Santa Ana RR track, 1/4 mile E of entrance Comment
  RSA751320  Bebbia juncea A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35283 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR37789  Bebbia juncea Steve Boyd, L. LaPre 1981-5-27 s.n. Orange Santa Ana Mtns., Northern end of the Santa Ana Mtns., along powerline road on ridges east of Weir Canyon & at the head of Gypsum Canyon. Comment
  POM48009  Berula erecta I. M. Johnston 1924-8-29 s.n. Orange 4 mi. S of Santa Ana. Comment
  RSA5958  Beta vulgaris C. B. Wolf 1932-7-7 3852 Orange Bixby Ave., 1.3 mi. W of Hansen Road. (0.2 mi. E of SW corner of NW 1/4 of NE 1/4 of Sect. 33). 8 Comment
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Apr 10 2014
  RSA696877  Bidens laevis J. Russell Bruff 1930-10 s.n. Orange Santa Ana River Bed. Comment
  IRVC24282  Bidens laevis Fred M. Roberts, G. A. Marsh 1985-10-26 2519 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  RSA488143  Bidens laevis Fred M. Roberts, Gordon Marsh 1985-10-26 2519 Orange Santa Ana River: adjacent to Huntington Beach: 0.7 km SSW Adams St bridge 4 Comment
  CAS-BOT-BC128000  Bidens pilosa Ira L. Wiggins 1965-10-24 20287 Orange Bank of storm drain at corner of Yorba Linda and State College Blvds., Fullerton Comment
  CHSC2067  Bloomeria crocea S. Westerberg 1938-4-1 Orange Dana Point. Comment
  UCR190981  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-4-22 34997 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
  UCR228783  Bloomeria crocea Dick Newell, Don Millar 2011-5-10 156 Orange Peninsular Range; Santa Ana Mtns., on Lakeview Rd. above Irvine Lake dam 276 Comment
  SEINET199453  Bloomeria crocea var. crocea J. R. Glen 1957-5-3 Orange 0.5 mile from the San Bernardino county line. 3 miles east of Olinda along Carbon Canyon road 201 Comment
  UCR12191  Bloomeria crocea var. crocea Art Whistler 1966-4-27 s.n. Orange Between Laguna Beach and Anaheim, via Laguna Canyon Rd. and probably Route 1 Comment
  CAS-BOT-BC31013  Bolboschoenus maritimus LeRoy Abrams 1901-6-12 1764 Orange Salt Marsh west of Westminster. Comment
  RSA0093406  Bolboschoenus maritimus D. E. Bramlet 2009-11-20 4418 Orange South Coast: San Diego Creek between Irvine and Newport Back Bay. 4 Comment
  UCR102034  Bolboschoenus maritimus subsp. paludosus B. G. Pitzer 1997-4-15 3137 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
  UCD56816  Bothriochloa barbinodis P. B. Kennedy 1924-2-5 s.n. Orange Irvine Range. Comment
  RSA520  Bowlesia incana J. T. Howell 1928-2-26 853 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CDA22564  Brachypodium distachyon J. B. Anderson 1966-4-22 615 Orange San Joaquin Hills: Central Los Trancos Canyon. 0 Comment
  UCSB52932  Brachypodium distachyon Roberts, Fred; Marsh, K. 1983-5-13 Orange Dana Point Headlands; S of Pacific Coast Hwy, 0.5 km NW Dana Point Harbor; 0.4 km SSW Richard Henry Dana School 80 Comment
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Jan 27 2021
  UCR223425  Brassica geniculata Dick Newell, Don Millar 2011-2-8 057 Orange Peninsular Range; Santa Ana Mtns., Black Star Coal Mine above Fremont Canyon, along Coal Rd. 475 Comment
  UCR228806  Brassica geniculata Dick Newell, Don Millar 2011-5-10 149 Orange Peninsular Range; Santa Ana Mtns., along MWD service road between Outdoor Education Center and Fremont Canyon, 0.2 mi. above Peters Cyn. Rd. 193 Comment
  CDA24706  Brassica nigra T. C. Fuller 1962-4-5 8143 Orange East of Highway 101, San Clemente. 0 Comment
  UCR191783  Brassica nigra A. C. Sanders, Fred M. Roberts 2008-3-25 34567 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UCR231158  Brassica nigra Dick Newell, Don Millar, Shara Harris 2011-6-21 189 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 225 Comment
  RSA0084260  Brassica nigra Caralisa Breidenbaugh, Mark Breidenbaugh 1992-1-5 19 Orange 1/2 mile south of Chino Hills State Park Boundary. 198 Comment
  HSC6583  Brassica rapa J. W. Johnson 1961-3-29 Orange Newport Beach, along upper Newport Bay Comment
  UCSB47972  Brassica rapa Roberts, Fred 1980-2-17 Orange At corner of Calle Arroyo and Calle Siega; near San Juan Creek; south of Highway 74; San Juan Capistrano 39 Comment
  RSA0069232  Brassica tournefortii Fred M. Roberts, Megan Lulow 2009-3-18 7137 Orange Santa Ana Mtns. Region: Lomas de Santiago: Loma Ridge at Calochortus Ridge, near East Loma Ridge Road, 2.6 km NW Bee Peak, &3.4 km NE of Rattlesnake Reservoir Dam. 375 Comment
  CAS-BOT-BC106303  Brickellia californica Helen D. Geis 1902-1-1 523 Orange Santiago Creek Comment
  RSA764022  Brickellia californica Doris Bowers 1970-10-26 1706 Orange Black Star Canyon 610 Comment
  UCR197680  Brickellia californica A. C. Sanders, Fred M. Roberts 2008-9-18 36067 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCR234137  Brickellia californica Dick Newell, Peter Wetzel 2011-8-30 218 Orange Peninsular Range; Santa Ana Mtns., Black Star Canyon Rd. and Edison Rd. 502 Comment
  UCSB48079  Brickellia californica 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
  RSA587119  Brodiaea jolonensis R. E. Riefner 1994-6-15 94 -253 Orange South bluffs, San Clemente State Beach. Comment
  RSA679215  Brodiaea terrestris subsp. kernensis Fred M. Roberts 2003-6-17 5912 Orange Just NE of Falcon roup Camp, 2.1km ESWE Los Pinos Peak just west of main road. 1009 Comment
  UCR99876  Bromus arizonicus Scott D. White 1993-3-5 1124 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  CLARK-A1528-4534  Bromus carinatus John C. Roos 1937-5-20 2079 Orange San Juan Capistrano Comment
  RSA703847  Bromus carinatus D. E. Bramlet, Fred M. Roberts 2003-3-27 3356 Orange Donna O'Neill Reserve. NE corner of the reserve 274m west of Cristianitos Rd. and 1.46km north of the E-W access road. (San Clemente: T8S R7W S12, NW of the SE; 11S -04 47 737E, 37 05 416N). 152 Comment
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Aug 30 2007
  SD241668  Bromus carinatus A. C. Sanders 2008-4-29 35144 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 miles SW of Santiago Reservoir (Black Star Canyon 7.5'Q) 334 Comment
  SEINET3921870  Bromus carinatus Steve Boyd, Tim Ross 1992-5-19 7417 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) north into Aliso Canyon.; 0 366 Comment
  CAS-BOT-BC149157  Bromus carinatus var. marginatus Le Roy Abrams 1901-6-1 1844 Orange Santiago Peak. Comment
  UCD58377  Bromus catharticus Frank W. Gould 1944-6-25 2360 Orange Tournat Ranch. Garden Grove. Comment
  POM7087  Bromus diandrus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2644 Orange Santa Ana River Canyon. Comment
  RSA0058186  Bromus diandrus Fred M. Roberts 2014-4-21 7870 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  UCSB48070  Bromus hordeaceus Fritzke, S.; Roberts, Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N of Dana Hills High School; 1.9 km. W of Marco Forster Junior High School 100 Comment
  UCR192104  Bromus madritensis A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35306 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  HSC94253  Bromus madritensis subsp. rubens D. Atwood 1993-3-27 17691 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  RSA697684  Bromus rigidus Rankin s.n. Orange Costa Mesa. 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
  POM286562  Bromus rubens Lyman Benson 1931-3-26 3198 Orange Dana Point. Ocean Bluff Watershed. 61 Comment
  RSA0042732  Bromus rubens David Barrios 1991-5-1 18 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA184124  Bromus rubens I. L. Wiggins 1966-3-16 20526 Orange Entrance to Firestone Boy Scout Reservation. Comment
  RSA697680  Bromus rubens Elisabeth Norland 1929-4-11 s.n. Orange Cypress. Comment
  RSA751157  Bromus sterilis D. E. Bramlet 2008-4-28 4248 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
  UCD59710  Bromus sterilis Scott D. White; Noel Davis 1998-5-21 6548 Orange Santa Ana Mtn. foothills. Mission Viejo Area: Aliso Creek watershed, east of El Toro Rd., just N of jtn. w/ Valley Vista Wy. Large proposed subdivision called 'Saddleback Meadow. 304 Comment
  IRVC26750  Bulbine Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3176 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA484558  Cakile edentula subsp. edentula Anstruther Davidson 1789 Orange Newport Beach; Santa Anna [Ana]. Comment
  CLARK-A1528-915  Cakile maritima Patricia A. Andrews 1975-6-26 5905 Orange Capistrano Bay Beach 9 Comment
  UCR42432  Cakile maritima A. C. Sanders 1986-5-31 6525 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  CSUSB525  Cakile maritima C. M. Flanagan 1971-5-18 S. N. Orange Cresent Bay, Laguna Beach Comment
  SFV18212  Cakile maritima H. Reyes, M. Nasseri 2000-5-5 s. n. Orange Bolsa Chica State Beach, south of Pacific Coast Highway at bank of Inner Bolsa Bay. Comment
  RSA716783  Calamagrostis koelerioides Fred M. Roberts, Carol A. Roberts, Devoree Volgado 1995-5-6 4941 Orange Santa Ana Mountains region: Ridge between Hot Springs Cyn. and Viejo Cyn., San Juan Trail, 3.7 km WNW Lower San Juan Picnic Ground. 622 Comment
  CHSC109281  Calandrinia breweri R. E. Riefner Jr. 2008-5-20 08 -104 Orange Irvine Ranch Reserve, North Irvine Ranch, western Fremont Canyon, Windy Ridge Rd. UTM: 11S 0435915E. 530 Comment
  UCR203899  Calandrinia breweri R. E. Riefner Jr. 2008-4-15 08- 72 Orange Irvine Ranch Reserve, north Irvine Ranch, western middle Fremont Canyon area, Coalmine SCE Road 353 Comment
  UC1929694  Calandrinia breweri R. E. Riefner Jr. 2008-5-20 08 -104 Orange Irvine Ranch Reserve, North Irvine Ranch, western Fremont Canyon, Windy Ridge Rd. Comment
  UCR217453  Calandrinia ciliata Mark A. Elvin 2003-1-26 2231 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA713907  Callistemon citrinus R. E. Riefner Jr. 2005-11-23 5 -773 Orange City of Newport Beach, Upper Newport Bay, E of Jamboree Rd and S of Bayview Way at Bonita Creek channel. 6 Comment
  CDA5107  Callistemon viminalis R. E. Riefner Jr. 2006-11-14 06 -674 Orange City of Irvine, San Diego Creek; vicinity of Campus Avenue at University Drive. Comment
  RSA723962  Callistemon viminalis R. E. Riefner Jr. 2006-11-12 06 -559 Orange City of Newport Beach, Irvine Coast Trail at San Diego Creek, near SR-73 crossing, S of Jamboree Rd. 3 Comment
  RSA0065925  Calochortus catalinae Allison D. Rudalevige 2015-3-25 ADR 11 Orange City of Laguna Beach, between Hobo Canyon and Aliso Creek. 199 Comment
  RSA443846  Calochortus catalinae Gordon Marsh, K. G. Marsh 1978-3-30 s.n. Orange Santa Ana Mountains: Ortega Highway, E of Highway Marker #67 before San Juan Creek Bridge. Comment
  RSA48924  Calochortus catalinae Philip A. Munz 1949-5-26 13379 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA539373  Calochortus catalinae Fred M. Roberts, Karlin G. Marsh 1989-3-7 4192 Orange Lomas de Santiago: Loma Ridge, tributary to Hicks Canyon, ca. 1.9 kilometers WSW Bee Survey Mark. 134 Comment
  RSA734347  Calochortus catalinae A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34639 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 396 Comment
  RSA741482  Calochortus catalinae R. E. Riefner 2008-4-20 8 -66 Orange On Loma Ridge, near city of Irvine, E side of Hicks Haul Rd., Irvine Ranch Reserve, Management Area 11. Comment
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Feb 2 2011
  RSA747612  Calochortus catalinae Fred M. Roberts 2000-4-27 5302 Orange Lomas de Santiago: Lomas Ridge, Agua Chinon Wash, 1.5 km S Bolero Spr. and 2.1 km WSW Bolero Lookout. 281 Comment
  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
  POM1697  Calochortus invenustus Le Roy Abrams 1901-6-15 1848 Orange Santiago Peak trail. Comment
  RSA679224  Calochortus invenustus Fred M. Roberts 2003-6-25 5946 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  SEINET7067525  Calochortus persistens A. G. Vestal 1947-6-12 s.n. Orange Grade to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 445302mE, 3724321mN. Comment
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Feb 20 2020
  RSA68627  Calochortus splendens Frank W. Peirson 1922-5-18 3061 Orange Santa Ana River 122 Comment
  SEINET5259809  Calochortus weedii Unknown 1995-7-3 29 Orange from Hugh McDonald's living collection; growing in Berkeley, CA Comment
  CAS-BOT-BC32349  Calochortus weedii var. intermedius John Thomas Howell 1927-6-22 2572 Orange Hills on N side of Santa Ana Canyon 243 Comment
  RSA271148  Calochortus weedii var. intermedius C. W. Tilforth 1977-6-15 1344 Orange Rancho Santa Ana property in the area of Horseshoe Bend of the Santa Ana River, Santa Ana Canyon, north-east Orange County. 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
  RSA588984  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-2 2382 Orange San Joaquin Hills. Emerald Canyon 1.2 km. north of Pacific Coast hwy. In the lower portion of the canyon 150 m W of the existing access road. 92 Comment
  RSA588989  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-23 2389 Orange Upper portion of Little Sycamore Canyon, W of Laguna Canyon Road. 140 Comment
  RSA749645  Calochortus weedii var. intermedius D. E. Bramlet 2008-6-5 4290 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
  RSA753166  Calochortus weedii var. intermedius D. E. Bramlet 2008-5-9 4263 Orange Ridgeline between the upper two tributaries of Wier Cyn. 1.2km east of S. Serrano Ave & 1.3km west of Gypsum Cyn. 330 Comment
  RSA788916  Calochortus weedii var. intermedius Fred M. Roberts 1999-6-10 5238 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., 1.3 km S Bolero Spring and 2.2 km W Bolero Lookout. 285 Comment
  SD134560  Calochortus weedii var. intermedius Craig Reiser 1992-6-12 Orange Laguna Niguel, west-facing slope 100 yards north of northeast corner of intersection of Crown Valley Parkway and Pacific Island Drive. Openings in chaparral. (IPB 3/08) Comment
  UCR112937  Calochortus weedii var. intermedius R. E. Riefner Jr. 2000-6-26 20- 580 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, along dirt road running N and west of Black Star Cyn. Road at powerline tower 631 Comment
  UCR133200  Calochortus weedii var. intermedius Adrian Wolf 2000-6-19 462 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 'panhandle' south of Black Star Canyon, east of Black Star Road, north of Baker Canyon 396 Comment
  PASA2306  Calycadenia tenella Frank W. Peirson 1922-5-18 Orange Santa Ana River 121 Comment
  RSA747706  Calycadenia tenella Fred M. Roberts 2008-5-16 6984 Orange Dana Point: Dana Point Hradland, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  UCR113456  Calycadenia tenella R. E. Riefner Jr. 2000-5-6 20- 444 Orange Santa Ana Mountains, North Ranch Policy Plan Area, NE property, along powerline on National Forest boundary 582 Comment
  CAS-BOT-BC215758  Calystegia macrostegia subsp. arida R. K. Brummitt 1998-5-23 19994 Orange 17 km NE of San Juan Capistrano on Rte. 74 200 Comment
  RSA562765  Calystegia macrostegia subsp. arida Steve Boyd 1992-5-19 7419 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon. 366 Comment
  RSA2064  Calystegia macrostegia subsp. intermedia C. B. Wolf 1931-3-6 1865 Orange 2 mi. from Orange Co. Park on the road to Anaheim. 152 Comment
  RSA638958  Calystegia occidentalis subsp. fulcrata Valerie L. Soza, LeRoy Gross 1999-6-7 488 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA697155  Calystegia occidentalis subsp. occidentalis Anonymous s.n. Orange Modjeska's Home. Comment
  JEPS47827  Calystegia sepium subsp. binghamiae L. M. Booth 1932-8-5 1359 Orange Huntington Beach Comment
  IRVC994  Calystegia soldanella E. Anderson 1965-4-25 Orange Huntington Beach State Park Comment
  SEINET3091113 Image available Calystegia soldanella Cesareo Perez 1971-5-15 Orange Huntington State Beach Pacifico Cst. Hwy. Brookhurst Huntington Beach. 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
  RSA165280  Camissonia bistorta Mark Parratt 1962-4-11 138 Orange Corona del Mar beach head. 5 Comment
  RSA3262  Camissonia bistorta D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  RSA49672  Camissonia bistorta L. R. Abrams 1901-6-15 1793 Orange Santiago Peak trail. Comment
  RSA732239  Camissonia bistorta A. C. Sanders, Fred M. Roberts 2008-4-22 35044 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  SEINET7073418  Camissonia bistorta A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UCR193058  Camissonia bistorta A. C. Sanders, Fred M. Roberts 2008-6-17 35504 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UCR42387  Camissonia cheiranthifolia A. C. Sanders 1986-5-31 6523 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  CSUSB189  Camissonia cheiranthifolia subsp. suffruticosa Nancy J. Moriarty 1973-5-20 730520 3 Orange Huntington Beach; 0.5 mile north of Brookhurst Street on the west side of Pacific Coast Highway. Comment
  RSA0073650  Camissonia cheiranthifolia subsp. suffruticosa Fred M. Roberts 2010-3-12 7181 Orange Southeast Coast: Dana Point Headlands: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  RSA234480  Camissonia cheiranthifolia subsp. suffruticosa James Henrickson 1970-7-24 5006 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  RSA734338  Camissonia hirtella A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34624 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  RSA4784  Camissonia strigulosa James Snow s.n. Orange Bryant Ranch, near Long Beach, Station #7. Plant 3. Comment
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Apr 29 2010
  CAS-BOT-BC160536  Camissoniopsis lewisii Peter H. Raven 1962-4-29 17490 Orange Lower edge of Cleveland National Forest just above San Juan Guard Station Comment
  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-BC37128  Capsella bursa-pastoris Ira L. Wiggins 1966-3-5 20499 Orange Along Highway S-18, about 4.5 miles east of Laguna Beach. Comment
  LA204276  Cardamine californica W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mts. (60deg ENE) 152 Comment
  LA204281  Cardamine californica C. B. Wolf; 1931-1-30 1826 Orange Santa Ana Mountains, Claymine Canyon 304 Comment
  UCR237835  Cardamine flexuosa Mark A. Elvin 2003-2-2 2298 Orange South Coast, UC Irvine Arboretum, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 17 Comment
  RSA0015954  Cardionema ramosissimum Fred M. Roberts 2012-5-10 7568 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
  RSA65597  Cardionema ramosissimum F. W. Peirson 1923-3-25 4166 Orange Aliso Creek, near Laguna Beach. Comment
  UC671794  Cardionema ramosissimum H. F. Copeland 1938-6-28 Orange hills back of Laguna Beach Comment
  RSA603305  Carduus pycnocephalus Scott D. White 1997-6-12 5330 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 junction. 46 Comment
  UCR79247  Carduus pycnocephalus Steve Boyd, T. Ross 1992-5-19 7427 Orange Santa Ana Mtns., San Mateo Wilderness Area. Lucas Canyon Trail. 412 Comment
  CAS-BOT-BC17635  Carex alma Helen D. Geis 1902-1-1 503 Orange Near Santa Ana. 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
  SBBG52701  Carex globosa C. Davidson 1977-5-18 5621 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  CAS-BOT-BC118491  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Unspecified Comment
  RSA697497  Carex praegracilis Elisabeth Norland 1929-4-11 s.n. Orange Cypress. Comment
  RSA76  Carex praegracilis J. T. Howell 1928-4-7 904 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  CAS-BOT-BC118488  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Peat Lands Comment
  CAS-BOT-BC118507  Carex praegracilis Helen D. Geis 1902-4-1 502 Orange Ditch banks Comment
  UC212053  Carex praegracilis D. L. Crawford 1916-3-15 726 Orange Santa Ana river Comment
  UC796593  Carex praegracilis Helen D. Geis 1902-4 Orange Comment
  RSA610230  Carex spissa Fred M. Roberts 1997-4-19 5011 Orange San Juan Canyon along San Juan Creek at CA. Rte. 74 bridge just east of San Juan Hot Springs, 0.8km SSE Juan Rancho Surbey Mark 240 Comment
  UCR174019  Carex spissa A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33049 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  SEINET10495943  Carissa macrocarpa Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-7-21 Dziekanowski 2417 Orange Collected around the condominium-Pacific Island Estates in Laguna Beach. Comment
  POM771  Carpobrotus chilensis D. L. Crawford 1916-8-1 s.n. Orange Aliso Point Comment
  RSA113267  Carpobrotus edulis E. K. Balls 1955-4-4 20421 Orange Coastal Strand. W end of Newport Beach. Hwy 101. 3 Comment
  RSA743459  Carpobrotus edulis Fred M. Roberts 2008-7-10 7067 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
  UCSB37841  Carthamus baeticus Dell O. Clarke 1969-7-14 Orange collected 2.0 mi NE La Brea Comment
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Nov 6 2019
  RSA82234  Castilleja affinis F. W. Peirson 1923-3-25 3376 Orange Aliso Canyon, near Laguna Beach. 152 Comment
  RSA0010904  Castilleja affinis Mabel Harvey s.n. Orange Modjeska's Home Comment
  RSA160549  Castilleja affinis J. D. Olmsted 1959-4-30 513 Orange North of Hidden Ranch in Black Star Can. ; 100 yards NW of Rattlesnake Rock; 5 mi. east of Irvine Lake. 716 Comment
  RSA425875  Castilleja affinis T. W. Minthorn 1928-4-1 s.n. Orange Balboa Palisades. Comment
  JEPS57258  Castilleja affinis subsp. affinis L. R. Heckard and R. C. Bacigalupi 1968-5-8 1839 Orange ca 6 mi e Orange; Irvine County Park 152 Comment
  UC1012124  Castilleja affinis subsp. affinis F. W. Pennell and Carl Epling 1940-4-21 25149 Orange 5 mi e San Luis Capistrano (Route 74) 60 Comment
  UC1032492  Castilleja affinis subsp. affinis A. Lewis Feb 1934 264 Orange Santa Ana Canyon; Corona Quad. 152 Comment
  RSA789224  Castilleja exserta subsp. exserta Naomi Fraga 2009-5-11 2717 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  UCSB17560  Castilleja exserta subsp. exserta Cummings, R. 1963-5-11 Orange 9 miles from San Juan Capistrano on U.S. Highway 101 alternate Comment
  UCSB45138  Castilleja foliolosa Woicik, Richard 1976-5-21 Orange Modjeska Canyon; near fire station Comment
  JEPS8829  Castilleja minor subsp. spiralis L. M. Booth 1932-8-9 1371 Orange Newport Bay Comment
  UC454833  Castilleja minor subsp. spiralis I. J. Condit 1908-7-22 Orange Los Alamitos Comment
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Nov 20 2010
  RSA429527  Caulanthus heterophyllus M. B. Dunkle 1935-3-3 4351 Orange San Juan Canyon. 457 Comment
  RSA542652  Caulanthus heterophyllus Fred M. Roberts 1988-3-15 3857 Orange Rancho Mission Viejo; Verdugo Canyon, 1.3 km SSW Lucan Survey Marker 201 Comment
  RSA0121892  Caulanthus lasiophyllus D. E. Bramlet 2008-3-31 4134 Orange 305m E of Upper Hicks Haul Rd, in Trib to Limestone Cyn., 1km S of Santiago Cyn. Rd. 311 Comment
  RSA594804  Ceanothus crassifolius Fred M. Roberts 1992-2-26 4835 Orange Santa Ana Mts. Ridge west of Black Star Canyon and north of confluence of Black Star Canyon and Santiago Canyon, 4.3 km ESE Irvine Lake spillway. 353 Comment
  UCR217288  Ceanothus crassifolius Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2212 Orange Peninsular Range; Santa Ana Mtns., c. 1.6 mi. west of Sierra Peak along road to powerlines, near Claymont Clay Mine 457 Comment
  RSA542418  Ceanothus integerrimus Fred M. Roberts, Karlin G. Marsh 1987-5-14 3440 Orange Santa Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail , 1.3 km NE Los Pinos Peak 1231 Comment
  UC1070733  Ceanothus integerrimus A. Lewis 1934-5-1 420 Orange Trabuco Elsinore quad., Cleveland National Forest 1341 Comment
  POM2821  Ceanothus integerrimus var. puberulus L. R. Abrams 1901-06 1843 Orange Mt. Santiago. Comment
  RSA735268  Ceanothus megacarpus Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  SD134389  Ceanothus megacarpus Craig Reiser 1987-6-26 Orange Anaheim, Wallace Ranch near Wier Canyon Road 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
  RSA0054960  Ceanothus oliganthus Keith E. Hoffmaster 1936-4-5 707 Orange Black Star can., Santa Ana Mts. Comment
  LA44897  Ceanothus oliganthus var. orcuttii P. C. Everett; 1935-6-18 7202 Orange Santa Ana Mountains, Main Dvide Motorway 1.7 mi N. of Los Pinos Potrero 1127 Comment
  LA44923  Ceanothus oliganthus var. sorediatus W. Pequegnat; 1938-3-19 sn Orange Holy Jim Trial 944 Comment
  LA44933  Ceanothus palmeri W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  UC1071228  Ceanothus papillosus R. St. John 1931-2-24 187 Orange Los Pinos Peak Elsinore Quad. Comment
  JEPS42338  Ceanothus papillosus var. roweanus F. W. Peirson 1923-1 3492 Orange Holy Jim Canon Santa Ana Mountains, SW Riverside Co. 990 Comment
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Oct 2 2011
  LA93871  Ceanothus spinosus D. S. Verity; Fred Lang 1974-2-20 sn Orange hills behind South Laguna Comment
  UC718318  Ceanothus spinosus Carl B. Wolf 1936-6-17 7950 Orange along Ortega Highway 2/10 mi w Riverside Co. Line (San Juan Canyon); Santa Ana Mts., San Juan Canyon 274 Comment
  PASA2518  Ceanothus tomentosus Frank W. Peirson 1922-5-19 Orange Small canyon heading eastward from the Santa Ana Canyon at 400 ft. Comment
  UCR263637  Ceanothus tomentosus Ed Kentner 2012-5-22 139 Orange Santa Ana Mountains, Irvine Ranch Conservancy, Fremont Canyon Reserve north side of windy Ridge Road 500 Comment
  RSA594879  Ceanothus tomentosus var. olivaceus Fred M. Roberts 1992-2-26 4834 Orange Santa Ana Mtns: ridge west of Black Star Canyon and north of confluence of Black Star Canyon and Santiago Canyon, 4.3 km ESE Irvine Lake spillway. 353 Comment
  SD234768  Cenchrus longisetus R. E. Riefner Jr. 2003-11-30 03 486 Orange South Coast: Santa Ana, 55 Freeway near Brookhollow St. 32 Comment
  CAS-BOT-BC277101  Centaurea melitensis John Thomas Howell 1927-6-20 2558 Orange On north side of Santa Ana Canon [Canyon] 228 Comment
  IRVC576  Centaurea melitensis J. B. Anderson 1966-4-22 611 Orange Upper Los Trancos Canyon. San Joaquin Hills Comment
  SD143577  Centaurea melitensis R. D. Goeden, D. W. Ricker 1965-6-21 Orange Dana Point 75 Comment
  SEINET3082600 Image available Centaurea melitensis R. P. Sunderman 1968-5-11 Orange W. of U. S. 101, immediately S. of Corona del Mar. Comment
  UC30921  Centaurea melitensis C. W. Hamlin 1896-1 Orange Buena Park Comment
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Apr 30 2008
  UCR192075  Centaurea melitensis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35276 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA650813  Centaurea melitensis Daniel Truong 1991-5-5 4 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  RSA551  Centaurium venustum J. T. Howell 1927-6-2 15 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA699754  Centaurium venustum Fred M. Roberts, David Bramlet 2003-6-6 5886 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.7km SW int. Cristianitos and TRW Rds. and 0.23km W of SDG&E substation. 94 Comment
  UC1280312  Centaurium venustum John M. Tucker 1941-5-30 259 Orange 200 yds w San Juan Guard Station (along Ortega Highway); San Juan Canyon Comment
  RSA716092  Centromadia parryi Fred M. Roberts 2006-7-5 6349 Orange Bolsa Chica Ecological Preseve: Bolsa Chica Mesa, 0.8km SSW Chica Survey Marker and 1.4km SE jct. Pacific Coast Hwy. & Warner Ae. 7 Comment
  RSA0119680  Cerastium glomeratum Fred M. Roberts 2015-3-10 7925 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  RSA5338  Cercocarpus betuloides B. D. Stark 1933-1-4 s.n. Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 229 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
  RSA787496  Cercocarpus betuloides var. betuloides Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49704 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SD247726  Cercocarpus betuloides var. betuloides R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49704 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UCSB34846  Cercocarpus traskiae Muller, Cornelius 1953-5-2 Orange Upper end of Swain Canyon, near ridge top, Santa Catalina Island Comment
  POM49175  Chaenactis artemisiifolia L. R. Abrams 1901-6-15 1808 Orange Trabuco Canyon Comment
  UCR193822  Chaenactis artemisiifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35867 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 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
  IRVC588  Chaenactis fremontii B. Mawdsley 1965-4-4 Orange Corona del Mar. Newport Beach Comment
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Dec 20 2006
  RSA695494  Chaenactis glabriuscula Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts Comment
  CAS-BOT-BC284202  Chaenactis glabriuscula var. lanosa LeRoy Abrams 1903-4-13 3254 Orange Buena Park Comment
  RSA13106  Chaenactis glabriuscula var. lanosa Percy C. Everett 1935-5-17 6865 Orange Atwood, 7/8 miles E. S side of Santa Fe R. R tracks 152 Comment
  RSA562820  Chamaesyce polycarpa var. polycarpa Steve Boyd 1992-5-20 7473 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
  CDA1080  Chamaesyce serpillifolia subsp. hirtula D. G. Kelch 2006-12-9 6 .563 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  IRVC844  Chamomilla suaveolens E. McRae 1965-4-8 Orange Costa Mesa Comment
  UCR141343  Chasmanthe aethiopica Robert DeRuff 1999-1 515 Orange Southern Coast, Newport Beach, Newport Back Bay, bluff below Eastbluff North, c. a third of the way down from the bluff top 6 Comment
  IRVC26744  Chasmanthe floribunda Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3181 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC26749  Chasmanthe floribunda Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3169 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC3132  Cheilanthes newberryi A. S. Boughey 123 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  UCD137350  Cheilanthes newberryi Beecher Crampton 1963-5-7 6788 Orange Santa Ana Mountains, Lower San Juan Canyon, ca. 11 miles northeast of San Juan Capistrano, State Hwy. 74. Comment
  RSA685771  Cheilanthes newberryi T. R. Pray 1961-2-14 1825 Orange San Juan Canyon along Ortega Hwy, near bridge just west of Cleveland National Forest Comment
  IRVC14987  Chenopodium album Anonymous 1976-10-28 Orange Nieblas School. Fountain Valley Comment
  SD236265  Chenopodium album A. C. Sanders, Fred M. Roberts 2008-9-18 36065 Orange Peninsular Range; Santa Ana Mtns Foothills: Lomas de Santiago, Santiago Creek Canyon ca. 1 mile above the highway bridge (El Roro 7.5'Q) 320 Comment
  UCR197684  Chenopodium ambrosioides A. C. Sanders, Fred M. Roberts 2008-9-18 36062 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  POM201674  Chenopodium ambrosioides L. M. Booth 830 Orange Santa Ana Canyon. Comment
  RSA5964  Chenopodium ambrosioides C. B. Wolf 1932-9-13 4036 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike & Well in SE 1/4 sect. 25., 1300 ft W of n.E. corner of S.E. 1/4 Sect. 25. T4S R12W. 6 Comment
  RSA64759  Chenopodium ambrosioides var. ambrosioides F. W. Peirson 1924-8-29 5079 Orange 6 miles from Balboa on road inland along creek. Comment
  UCR192993  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-5-6 35218 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR193018  Chenopodium berlandieri A. C. Sanders, Mitch Provance 2008-5-20 35414 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA573305  Chenopodium berlandieri var. sinuatum Steve Boyd 1994-9-14 8362 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Aliso Canyon. 341 Comment
  UCD98106  Chenopodium californicum P. B. Kennedy 1925-1-12 9 Orange Irvine Ranch. Comment
  RSA625806  Chenopodium californicum Scott D. White, Noel Davis 1998-5-21 6546 Orange Santa Ana Mountains, Mission Viejo Area: Aliso Creek watershed, east of El Toro Road just N of junction w/ Valley Vista Way., 33 deg 40.5 N, 117 deg 37 W. 305 Comment
  UCR27598  Chenopodium macrospermum John C. Roos 1949-10-1 4681 Orange South Coast, Doheny Beach 0 Comment
  UC536977  Chenopodium macrospermum var. halophilum Lawrence M. Booth 1932-7-19 1289 Orange Bolsas Marsh Comment
  RSA594870  Chenopodium macrospermum var. halophilum Fred M. Roberts Jr., W. R. Ferren, D. E. Bramlet 1991-11-29 4825 Orange Irvine: San Joaquin Freshwater Marsh, ca. 1.5 km NW center of U.C. Irvine Campus, ca. 5 km WNW French Hill. 2 Comment
  RSA696277  Chenopodium multifidum Keith E. Hoffmaster 1932-8-26 s.n. Orange Santa Ana. Comment
  IRVC397  Chenopodium murale B. Newman 1965-3-31 Orange Corona del Mar, Jamboree Rd. Newport Beach Comment
  RSA165143  Chenopodium murale Mark Parratt 1962-4-11 139 Orange Corona del Mar beach head. 4 Comment
  UCR222390  Chenopodium murale Mark A. Elvin 2003-1-26 2244 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA562753  Chenopodium murale Steve Boyd, Timothy S. Ross 1992-5-19 7429 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon,. 366 Comment
  UCR146879  Chlorogalum parviflorum Kathleen Stockwell 2000-6-18 s.n. Orange South Coast, Dana Point Headlands 61 Comment
  CSUSB404  Chlorogalum pomeridianum Cesareo Perez 1971-5-18 Orange South Mesa Drive & Lemon Street, in Villa Park. Comment
  RSA5925  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 0.5 mile above La Vida Springs. 244 Comment
  UCSB38063  Chorizanthe fimbriata var. fimbriata Roos, John 1965-6-16 Orange Dana Point near Doheney Beach. Comment
  CAS-BOT-BC252772  Chorizanthe parryi var. fernandina Helen D. Geis 1902-1-1 541 Orange Santa Ana 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-BC255249  Chorizanthe staticoides Helen D. Geis 1902-1-1 542 Orange Hills near Santa Ana Comment
  CAS-BOT-BC255251  Chorizanthe staticoides P. C. Everett 1935-4-29 6711 Orange Santa Ana Canyon, 7/10 mile W of Esperanza 152 Comment
  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
  RSA588851  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1989-6-28 4392 Orange Laguna Niguel: Just beyond end of Le Conte Rd along ridge, 0.6 km SW summit of Niguel Hill. 195 Comment
  UCR192985  Chorizanthe staticoides A. C. Sanders, Fred M. Roberts 2008-5-6 35214 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  RSA0004910  Chorizanthe staticoides var. elata P. A. Munz 1923-6-14 7085 Orange Glen dry trail to Santiago Peak , Santa Ana Mountains, dry ridge in chaparral belt. 1463 Comment
  SEINET2049585 Image available Chrysanthemum coronarium Cesareo Perez 1971-5-12 Orange California State Parks, Huntington State Beach Pacific Coast Highway & Brookhurst, Huntington Beach. 0 Comment
  RSA818  Cichorium intybus J. T. Howell 1927-10-29 786 Orange Bryant Ranch near Long Beach. 15 Comment
  UC1598731  Cicuta maculata var. bolanderi Lawrence M. Booth 1932-7-29 1333 Orange Newport Lagoon Comment
  POM352203  Cirsium occidentale var. californicum M. B. Dunkle 1933-5-30 3580 Orange Santa Ana Canyon. Comment
  UCSB52870  Cirsium occidentale var. californicum 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
  RSA0059656  Cirsium occidentale var. occidentale Fred M. Roberts, David E. Bramlet 2003-6-6 5907 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. 149 Comment
  RSA0059657  Cirsium occidentale var. occidentale Scott D. White 2003-3-21 8796 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  IRVC22072  Cistaceae Fred M. Roberts 1983-4-7 978 Orange Niguel Hill, above Pacific Island Dr., 1.7km SE Aliso Peak, 3.0km SSW Alicia Fire Station, Laguna Niguel 239 Comment
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Feb 22 2019
  CAS-BOT-BC172418  Clarkia bottae Steve Boyd; Tim Ross 1992-5-19 7441 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstream to confluence with aliso Canyon. 335 Comment
  SD181431  Clarkia deflexa Valerie Soza, LeRoy Gross 1999-6-7 475 Orange Santa Ana Mountains: West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UCR150923  Clarkia deflexa Valerie Soza, LeRoy Gross 1999-6-7 475 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
  POM6353  Clarkia dudleyana L. T. Street, Williams 1919-5-10 2752 Orange Turnbull Canyon. Near Whittier 305 Comment
  SEINET272172  Clarkia similis G. K. Helmkamp, E. A. Helmkamp 1997-4-24 1657 Orange Cleveland National Forest ; Cleveland National Forest 1.6 mi. SE of Ortega Hwy (CA-74) on Rd. 7-S14. UTM 10km cell: MH-5E 1N. San Juan Hot Spring 549 Comment
  CAS-BOT-BC233841  Claytonia parviflora subsp. parviflora Helen D. Geis 1904-4-1 758 Orange Silverado Canyon, Santa Ana Mts. Comment
  RSA797818  Claytonia perfoliata R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49807 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA700034  Clematis lasiantha R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  UCR234160  Clematis lasiantha Dick Newell, Judy Booth 2012-3-25 236 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  RSA5332  Clematis ligusticifolia B. D. Stark 1933-6-3 s.n. Orange Rancho Santa Ana near pear orchard 122 Comment
  UCR103287  Clematis ligusticifolia B. G. Pitzer, T. Tennant 1997-11-8 3366 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  RSA0061168  Clematis ligusticifolia Robt. Allen 2007-8-11 s.n. Orange Santa Ana Mountains region: Silverado Canyon, Maple Springs Road. 791 Comment
  POM305824  Clematis pauciflora Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1074 Orange Capistrano Canyon. Comment
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Dec 17 2011
  RSA3179  Cleome isomeris C. B. Wolf 1932-03 2684 Orange Low bluffs bordering Newport Bay, 1/2 mile N of Corona del Mar. 8 Comment
  SEINET945698  Clitoria mariana Paul O. Schallert 1949-1 4870 Orange Near Maitland. Comment
  RSA449088  Cneoridium dumosum Unspecified s.n. Orange Laguna Beach. Comment
  RSA449090  Cneoridium dumosum Alice Mohr 1917-1 s.n. Orange Laguna. Comment
  UCR193023  Collinsia concolor A. C. Sanders, Mitch Provance 2008-5-20 35398 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
  UCR133708  Collinsia heterophylla N. C. Cooper 1944-6-4 1361 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, lower camp ground '1500 ft. 396 Comment
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Apr 24 2011
  RSA587867  Collinsia heterophylla Fred M. Roberts Jr. 1990-5-22 4635 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  UCSB52879  Comarostaphylis diversifolia subsp. planifolia Roberts, Fred 1983-4-7 Orange Laguna Niguel; Niguel Hill, above Pacific Island Road, 1.7 km. SE Aliso Peak; 3.0 km. SSW Alicia Fire Station 239 Comment
  POM295610  Conium maculatum Lyman Benson 1946-7-8 12105 Orange Corona del Mar. 15 Comment
  RSA0013914  Convolvulus arvensis Fred M. Roberts 2012-5-10 7582 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
  CSUSB645  Convolvulus arvensis Kenneth Hibberd 1966-5-8 660508 4 Orange Frontage Road, one mile north of El Toro Road along Highway 101, Santa Ana Freeway. 121 Comment
  RSA610239  Convolvulus simulans Fred M. Roberts, Tony Bomkamp 1997-3-13 4982 Orange Rancho Mission Viejo: Christianitos Canyon, 4 km ESE Viejo Survey Mark. 5 Comment
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Oct 20 2011
  RSA687516  Convolvulus simulans Fred M. Roberts, D. E. Bramlet 2003-4-10 5652 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, ridge between Cristianitos Canyon, 1.17 km SW Gato Gate and 1.02 km W Cristianitos Road. 175 Comment
  IRVC24188  Conyza coulteri Fred M. Roberts 1985-9-17 2264 Orange Irvine; lot between Walnut Avenue, Harvard Avenue and Peter's Creek Channel. southern coastal 20 Comment
  UCR241916  Conyza coulteri Fred M. Roberts, Lee Ann Caranza 2009-9-23 7162 Orange Southern Coastal Plain, Dana Point, Dana Point Headlands, CNLM Dana Point Preserve, old Marguerite Road bed just west of the Nature Center and just east of the terminus of Dana Strands Road, 0.7 km west pier, Dana Point Harbor 73 Comment
  UCR80037  Conyza coulteri Scott D. White 1992-10-20 970 Orange Vicinity of city of Brea, Immediately north of Carbon Canyon Rd & east of Placentia Avenue +-1mi (air) SSEof Tonner Canyon. 183 Comment
  RSA735162  Conyza floribunda A. C. Sanders, Fred M. Roberts 2008-5-6 35210 -B Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR193827  Cordylanthus rigidus A. C. Sanders, Fred M. Roberts 2008-7-16 35852 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  UCSB48241  Cordylanthus rigidus subsp. setiger Roberts, Fred 1981-7-21 Orange Santa Ana Mts.: 0.8km SE Blue Jay Camp Ground 934 Comment
  RSA797439  Cordyline australis John Murphy 1938-6-6 s.n. Orange Birch Park Comment
  CAS-BOT-BC287838  Coreopsis californica Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canon Comment
  CAS-BOT-BC101294  Corethrogyne filaginifolia John Thomas Howell 1927-9-24 3106 Orange on n. s. of Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC101295  Corethrogyne filaginifolia David D. Keck 1932-9-30 1908 Orange Dana Point, near San Juan Capistrano Comment
  POM201779  Corethrogyne filaginifolia L. M. Booth 1932-7-29 1332 Orange Newport Bay Comment
  SFV3855  Corethrogyne filaginifolia E. B. Carlton 1961-8-26 C 3 Orange Laguna Beach. Crest of ridge north of reservoir, "Top of the World" area. 305 Comment
  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
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Jan 25 2020
  UCR210374  Coronopus didymus T. B. Salvato, Billy Deane 2006-10-16 1935 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  CAS-BOT-BC287220  Cotula australis Ira L. Wiggins 1966-2-12 20434 Orange N side of La Palma Ave near Harbor Blvd, Anaheim Comment
  RSA696050  Cotula australis Kenneth Beard 1934-03 s.n. Orange Beneath tree on High School campus. Comment
  CAS-BOT-BC291359  Cotula coronopifolia L. Street 1917-5-12 1928 Orange San Juan Capistrano Comment
  CDA20829  Cotula coronopifolia P. Akers 2006-3-25 PA 3 -06 Orange Peninsular Ranges; Yorba Linda, N edge of Santa Ana River. S of La Palma Dr, 0.5-0.8 mi E of Yorba Linda Dr. 121 Comment
  UC1719522  Cotula coronopifolia D. Atwood 1993-3-29 17728 Orange Huntington Beach along Beach Blvd ca 1/2 miles N of the beach. Comment
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Jul 14 2012
  UCR102026  Cotula coronopifolia B. G. Pitzer 1997-4-15 3154 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
  RSA696049  Cotula coronopifolia Stephen Bruff s.n. Orange Lemon Heights Comment
  UCSB44179  Cotula coronopifolia Hennema, J. 1977-5-21 Orange Newport Back Bay 6 Comment
  UC1543004  Crassula aquatica Donald G. Nelson 1935-4-15 303 Orange on rd. from Garden Grove to Costa Mesa (toward main hwy. from Santa Ana) Comment
  RSA2085  Crassula connata C. B. Wolf 1931-3-6 s.n. Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  UCR103791  Crassula connata Scott D. White 1997-2-19 4700 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA184073  Crassula connata I. L. Wiggins 1966-3-5 20498 Orange Among grasses and weeds on grazed hillside, along hwy S-18, about 4.5 mi. E of Laguna Beach Comment
  RSA752041  Crassula tillaea Fred M. Roberts 2008-3-27 6807 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  POM3584  Cressa truxillensis D. L. Crawford s.n. Orange Laguna Beach Comment
  POM3812  Cressa truxillensis P. A. Munz 1918-5-4 2168 Orange Laguna Comment
  RSA234516  Cressa truxillensis James Henrickson 1970-7-25 5055 Orange 2 miles NE of Huntington Beach near north end of Bolsa Chica Salt Marsh. 0 Comment
  RSA697347  Cressa truxillensis Keith E. Hoffmaster 1926-12-18 s.n. Orange Santa Ana Comment
  SD143548  Cressa truxillensis R. D. Goeden, D. W. Ricker 1965-7-7 Orange Tustin Township near Peters Canyon Channel, east of Santa Ana Marine Corps Air Station 60 Comment
  RSA5822  Cressa truxillensis C. B. Wolf 1932-6-28 3800 Orange 25 ft. west and 600 ft. north of SE corner of SE 1/4 sect 29. 9 Comment
  RSA0011253  Croton californicus Fred M. Roberts, Sandy Leatherman 2007-11-27 6670 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
  RSA480686  Croton californicus Josephine Derigo 1941-7-18 s.n. Orange Anaheim Comment
  RSA4829  Croton californicus James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Station #1. Plant #3. Comment
  SEINET9253017 Image available Croton californicus A. C. Sanders, Fred M. Roberts 2008-5-6 35229 Orange Peninsular Range, Santa Ana Mountains, Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  CDA35289  Croton californicus Mackessy & Pope 1957-6-27 Orange Santa Ana riverbed. 0 Comment
  RSA0011251  Croton californicus Fred M. Roberts Jr. 1989-5-9 4340 Orange Santa Ana Mts: Gypsum Canyon, west fork, 5.6 km WNW Sierra Peak, c.a. 1 km S Highway 91. 146 Comment
  SEINET10453718  Croton setiger Charlene A. Bennett 1976-7-20 Bennett 427 Orange Collected along Crown Valley Parkway, 1 mi SW of I-5. 30 Comment
  UCR123430  Crypsis schoenoides G. James 1968-10-1 s.n. Orange Huntington Beach, near Beach Boulevard and Adams Boulevard. Comment
  IRVC24791  Cryptantha clevelandii Karlin G. Marsh 1989-3-15 Orange Lomas Ridge, west branch of Rattlesnake Canyon; coastal sage scrub. Lomas de Santiago Comment
  RSA641  Cryptantha clevelandii J. T. Howell 1927-7-22 460 Orange North of Botany Garden, Rancho Santa Ana. 274 Comment
  UCSB52918  Cryptantha clevelandii var. florosa Roberts, Jr., Fred 1983-3-10 Orange Dana Point Headlands: south of Scenic Dr., 0.3 km. W Dana Point Harbor; 0.8 km. S Richard Henry Dana School 60 Comment
  RSA542657  Cryptantha intermedia Fred M. Roberts 1988-4-10 3902 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  RSA681022  Cryptantha microstachys Fred M. Roberts, D. E. Bramlet 2003-3-13 5584 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 207 Comment
  UCR47757  Cryptantha microstachys F. R. Fosberg 1930-6-15 S- 02937 Orange Santa Ana Mtns, Santiago Canyon, near Modjeska's home. Comment
  RSA1698  Cryptantha muricata C. B. Wolf 1931-3-6 1839 Orange Trabuco Canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  CDA42236  Cucurbita digitata Bellue - Paddock Oct 1944 Orange Near Ry. [Railway?] 0 Comment
  UCR230825  Cucurbita foetidissima Dick Newell, Don Millar, Shara Harris 2011-6-21 186 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 207 Comment
  RSA697187  Cucurbita foetidissima Anonymous 1933-1 s.n. Orange Vacant lot, Santa Ana. Comment
  CAS-BOT-BC80569  Cupressus forbesii W. M. Prince 1922-3-10 s.n. Orange Base of Santa Ana Mtns, So side of Santa Ana River Comment
  CAS-BOT-BC80570  Cupressus forbesii James R. Shevock 1972-1-16 1332 Orange Silverado Cyn, near Summit; Santa Ana Mts. 1371 Comment
  JEPS39796  Cupressus forbesii John Thomas Howell 1927-8-10 2983 a Orange Claymire Canyon Santa Ana Mts., Sierra Peak, Claymire Canyon 609 Comment
  POM316846  Cupressus forbesii Charles Fitch 1967-4-19 s.n. Orange North portion of the Santa Ana Mountains. Just north of Cleveland Nat. Forest. Comment
  RSA14452  Cupressus forbesii Philip A. Munz, I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. Santa Ana River Canyon. Alluvial soil along canyon, 2d large canyon south of Orange County line. Comment
  RSA7201  Cupressus forbesii B. D. Stark 1933-3-17 4532 -C Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  CAS-BOT-BC80574  Cupressus forbesii Rimo Bacigalupi 1935-6-22 2354 Orange Head of Clay Mine Canyon on drainage of Santa Ana River, northern end of Santa Ana Mts. Comment
  CAS-BOT-BC80681  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6279 Orange Santa Ana Mts., slopes of Sierra Peak, W. of [Claymine] Clay Mine Canyon along road to peak 670 Comment
  NY16664  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6279 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  NY16674  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
  JEPS47128  Cuscuta Alice King Jun 1908 Orange Santa Ana Comment
  CAS-BOT-BC224409  Cuscuta californica Carl B. Wolf 1932-7-2 3820 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  POM18140  Cuscuta californica P. A. Munz 1923-9-7 7759 Orange Trail Trabuco Canyon to Santago Peak 915 Comment
  RSA690978  Cuscuta californica Scott D. White, Michael Honer 2003-5-29 9432 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. Steep, gen. south-facing slopes above trib. to Trampas Canyon, ca. 0.6 air mi. S of Ortega hwy and ca. ca. 0.5 mi west of Trampas Cyn. 122 Comment
  RSA797668  Cuscuta californica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49772 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SD245330  Cuscuta californica Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49628 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. Comment
  RSA409769  Cuscuta californica var. breviflora George Price 1967-5-17 s.n. Orange O'Neil Park Comment
  POM6459  Cuscuta ceanothi P. A. Munz, Street, Williams 1919-5-3 2675 Orange Santa Ana River Canyon. Comment
  RSA545240  Cuscuta ceanothi R. F. Thorne 1967-08 41893 Orange Trabuco Canyon. Comment
  IRVC29789  Cuscuta subinclusa Mark A. Elvin, Dean Kelch 2006-12-9 5312 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  IRVC24278  Cycloloma atriplicifolium Fred M. Roberts, G. A. Marsh 1985-10-26 2523 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  RSA609757  Cycloloma atriplicifolium L. C. Wheeler 1946-9-28 6377 Orange Newport Bay: Near point where main coast highway crosses.. . 2 Comment
  CDA7766  Cyclospermum leptophyllum David Armstrong 2008-4-6 PDR# 1255936 Orange Orange, 2809 E. Hillside Ave. 0 Comment
  IRVC14840  Cynara cardunculus B. Newman 1965-3-14 Orange Dana Point 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
  RSA678742  Cynodon dactylon Valerie L. Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1112 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCD60070  Cynodon dactylon Beecher Crampton 1965-10-27 7578 Orange 2 miles east of Irvine, Irvine Blvd. Comment
  RSA594874  Cyperus erythrorhizos Fred M. Roberts, W. R. Ferren 1991-12-1 4829 Orange San Joaquin Hills: Laguna Canyon, Upper Laguna Lake, 3.5 kilometers N junction El Toro Road, 4.9 kilometers ENE Signal Peak. 113 Comment
  IRVC29698  Cyperus esculentus Mark A. Elvin, Barry S. Nerhus 2006-11-4 5244 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  UCR193771  Cyperus involucratus A. C. Sanders, Fred M. Roberts 2008-7-3 35702 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
  UCR109742  Cyperus niger T. W. Fisher, R. E. Orth 1964-7-1 s.n. Orange Peninsular Range; Santa Ana Mtns., San Juan Creek off the Ortega Hwy 500 Comment
  CAS-BOT-BC537198  Cyperus niger R. F. Thorne 1977-11-21 49999 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  CAS-BOT-BC113821  Cyperus niger var. capitatus Frank Warrington Peirson 1924-10-19 5231 Orange Along edge of water in ditch, Wintersberg. Comment
  RSA710407  Cyperus odoratus Fred M. Roberts 2005-10-3 6295 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  UCD170386  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12- 5 Orange City of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road. 1 Comment
  UCR240193  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-26 12- 11 Orange South Coast, city of Laguna Beach, Aliso Creek Beach 2 Comment
  UCR208856  Dactylis glomerata C. B. Wolf 1932-6-13 3715 Orange Fullerton, Rose Drive 53 Comment
  UCD60300  Dactyloctenium aegyptium E. Wegener 1970-8-11 - 948 Orange Near Costa Mesa. Comment
  RSA295240  Dactyloctenium aegyptium E. Wegener 1970-8-11 LASCA- 948 Orange Near Costa Mesa. Comment
  RSA717043  Datisca glomerata Fred M. Roberts, Chris M. Barnhill 2005-9-27 6286 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  UC2042145  Datisca glomerata R. F. Thorne with E. W. Lathrop, W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR261692  Datisca glomerata Dick Newell, Judy Booth 2014-5-15 379 Orange Peninsular Range; Santa Ana Mtns., Modjeska Canyon, 0.3 mi. east of Tucker Wildlife Sanctuary, 1.75 miles SSW of Flores Peak 434 Comment
  POM201713  Datura stramonium L. M. Booth 1932-7-30 1345 Orange Santa Ana River Comment
  RSA421912  Datura wrightii Albert J. Perkins 1922-11-22 s.n. Orange Laguna heights 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
  RSA749349  Deinandra fasciculata Fred M. Roberts 2008-4-22 6922 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn.,along Haul Rd. near asphalt plant, 2.2 km ENE Rattlesnake Reservoir dam and 2.2 km WNW Bee Peak, Irvine Ranch Conservancy. 188 Comment
  UC1093919  Deinandra fasciculata Herbert L. Mason 1926-4-25 2932 Orange 5 mi s Laguna Comment
  UC480895  Deinandra fasciculata D. L. Crawford 1915-9-1 504 Orange Huntington Beach Comment
  UCR256517  Deinandra fasciculata R. E. Riefner Jr. 2014-8-10 14- 281 Orange South Coast, city of San Clemente, Rancho San Clemente Trail, east c. 0.15 mi from Ave Salvador, and south c. 0.2 mi off Utility Access Road 202 Comment
  CAS-BOT-BC299328  Deinandra fasciculata Palmer Stockwell 1934-5-12 60 Orange Laguna Beach Comment
  CAS-BOT-BC299334  Deinandra fasciculata John Thomas Howell 1927-6-8 2454 Orange Southern Puente Hills, Santa Ana Canyon 182 Comment
  SD5619  Deinandra fasciculata Ruth B. Randall 1926-1 123 Orange Comment
  CAS-BOT-BC383062  Deinandra paniculata R. E. Riefner, Jr. 2008-5-19 08 -101 Orange Ladera Ranch, Cecil Pasture at Jerome Rd. 157 Comment
  OBI74758  Deinandra paniculata Unknown 2003-8-31 03 -337 Orange San Clemente State Beach, mima mound field in SW corner of park 27 Comment
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Feb 23 2018
  SFV3981  Deinandra paniculata A. M. Johnson 1932-4-23 4006 Orange Dry hills north of Orange. Comment
  RSA0037248  Deinandra paniculata Sandy Leatherman, Melissa Riedel-Lehrke 2013-7-1 2013 -9 Orange Coastal Plains & Basins; South Coastal Plain region: South Orange County, 1.4 miles east of the intersection of Antonio Parkway and Crown Valley Parkway, in the undeveloped foothills. 146 Comment
  RSA724055  Deinandra paniculata R. E. Riefner 1994-9-6 94 -552 Orange City of Dana Point, Dana Hills, vicinity of Dana Hills High School. 27 Comment
  RSA649081  Delphinium Karl Price 1988-5-7 35 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  CAS-BOT-BC9090  Delphinium cardinale Carl B. Wolf 1932-7-2 3821 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA5931  Delphinium cardinale Carl B. Wolf 1932-7-2 s.n. Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA69411  Delphinium parryi F. W. Peirson 1925-4-11 5745 Orange 5 miles south of Laguna Beach. Comment
  RSA539368  Delphinium parryi Fred M. Roberts, Carol A. Roberts 1988-6-2 4030 Orange Santa Ana Mtns: Silverado Canyon, Maple Springs Truck Trail, 4.3km above gate. 1.0 km WSW Bald Peak. 817 Comment
  CAS-BOT-BC121419  Delphinium parryi subsp. parryi L. R. Abrams 1901-6-1 1818 Orange Santa Ana Mts Comment
  RSA652150  Dendromecon rigida J. Bruce Smiley 1940-4-28 s.n. Orange Santa Ana Canyon (mouth). 701 Comment
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Nov 6 2013
  UCR252203  Dendromecon rigida Amanda C. Swanson 2013-4-21 25 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  RSA171106  Dendromecon rigida subsp. rigida Robert F. Thorne 1963-7-26 32833 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  CAS-BOT-BC43189  Descurainia pinnata subsp. brachycarpa Helen D. Geis 1902-1-1 530 Orange Santiago Canyon. Comment
  JEPS53438  Descurainia pinnata subsp. halictorum Alice King Mar 1908 Orange Santiago Creek; Santa Ana Mts. Comment
  UCR130486  Descurainia pinnata subsp. halictorum R. E. Riefner Jr. 1999-5-22 99- 291 Orange South Coast, city of Dana Point, west of Pacific Coast Hwy, vicinity of Salt Creek Park and Ritz Carlton Hotel 15 Comment
  RSA732173  Dichelostemma capitatum A. C. Sanders, Fred M. Roberts 2008-3-25 34543 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA165174  Dichelostemma capitatum subsp. capitatum Mark Parratt 1962-4-11 140 Orange Beach head at Corona del Mar, Santa Ana Mt. Range Comment
  RSA562808  Digitalis purpurea Steve D. Boyd, Tim S. Ross 1992-5-20 7480 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
  RSA0047115  Dinebra retroflexa var. retroflexa O. F. Clarke, D. Svehla 2004-8-23 s.n. Orange Santa Ana River Valley: Yorba Linda, Yorba Regional Park, Santa Ana River bank near intersection of E. La Palma Ave. and Fairmont Blvd. 91 Comment
  SD251157  Diplachne fusca var. fascicularis Justin M. Wood 2010-9-29 2740 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. (Black Star Canyon ) 128 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
  CAS-BOT-BC151045  Diplacus brevipes F. W. Pennell; Carl Epling 1940-4-21 25148 Orange Route 74, 5 mi. E. of San Luis Capistrano 121 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
  UC1215212  Diplotaxis muralis Peter H. Raven 1962-3-27 16992 Orange near Anaheim (Rancho Santa Ana); Rancho Santa Ana 182 Comment
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Mar 18 2011
  UCR173935  Diplotaxis muralis A. C. Sanders, Mark A. Elvin 2006-5-6 32250 Orange South Coast, UC Irvine Arboretum, NE side of gardens toward Campus Dr. 15 Comment
  RSA678747  Distichlis littoralis Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1102 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  RSA610234  Dodecatheon clevelandii Fred M. Roberts 1997-2-7 4976 Orange Rancho Mission Viejo: Calif. Rte. 74 circa 6.8 km E Interstate 5 ( San Juan Capistrano) opposite the mouth of Canada Gobernadora, 1.2km NE Viejo Survey Mark. 88 Comment
  RSA539349  Dodecatheon clevelandii Fred M. Roberts, Karen Kirtland 1989-2-22 4184 Orange San Joaquin Hills: Upper Buck Gully, 0.7km NE Pelican Hill. 207 Comment
  LA208047  Drymocallis glandulosa W. Pequegnat; 1938-6-15 sn Orange Santa Ana Mountains, Santiago Peak 1734 Comment
  RSA701656  Drymocallis glandulosa Keith E. Hoffmaster 1935-5-5 s.n. Orange San Juan Canyon., Santa Ana Mts. Comment
  CAS-BOT-BC70835  Dryopteris arguta Ira L. Wiggins 1966-2-4 20410 Orange Trabuco Canyon, about 1/2 mi. above end of open road Comment
  UCSB48105  Dryopteris arguta Fritzke, S.; Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: San Juan Canyon, 2.4km ENE San Juan Guard Station; 0.3km WSW Bench Mark 1100. 88 Comment
  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
  RSA649685  Dudleya cymosa subsp. pumila R. E. Riefner 2000-6-7 20 -447 Orange NCCP North Ranch Policy Plan Area. Upper drainage of Fremont Canyon along National Forest Boundary, at powerline. 609 Comment
  CAS-BOT-BC428264  Dudleya edulis L. R. Abrams 1901-6-1 1785 Orange San Joaquin Hills Comment
  CAS-BOT-BC428265  Dudleya edulis Cecil Hart 1928-5-27 s.n. Orange Laguna Beach Comment
  RSA0063395  Dudleya edulis Fred M. Roberts, David Bramlet 2003-6-6 5909 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. 149 Comment
  RSA542642  Dudleya edulis Fred M. Roberts, K. Keane 1988-5-26 4007 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  UC933205  Dudleya edulis Reid Moran 1950-4-24 3389 Orange San Clemente Comment
  RSA0077165  Dudleya edulis Reid V. Moran 1948-6-23 3096 Orange Aliso Canyon; Laguna Beach. Comment
  CLARK-A1528-2622  Dudleya lanceolata John C. Roos 1937-5-21 2338 Orange Santa Ana Comment
  POM201797  Dudleya lanceolata L. M. Booth 1932-6-9 s.n. Orange Newport Bay Comment
  POM265679  Dudleya lanceolata J. C. Roos 1937-5-21 2338 Orange Lemon Heights, near Santa Ana Comment
  RSA50298  Dudleya lanceolata E. K. Balls 1949-5-21 13470 Orange spontaneous in Rancho Santa Ana Botanic Garden (original site), hillside east of Cactus Garden, Santa Ana River Canyon. 198 Comment
  RSA743454  Dudleya lanceolata Fred M. Roberts 2008-7-10 7074 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
  SEINET3089229 Image available Dudleya lanceolata Cesareo Perez 1971-5-18 22 Orange S. Mesa Dr. & Lemon St., Villa Park. Comment
  UC1090403  Dudleya lanceolata Milo S. Baker 1958-5-20 13302 Orange Newport Bay Comment
  UCR119302  Dudleya lanceolata R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 456 Orange Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 473 Comment
  UCSB42175  Dudleya lanceolata Roos, John 1965-6-16 Orange Dana Point Comment
  JEPS50031  Dudleya multicaulis Frank W. Peirson 3071 Orange Santa Ana Mountains Santa Ana Canyon; , Santa Ana Canyon 121 Comment
  SD45412  Dudleya multicaulis Reid Moran 1950-5-24 3412 Orange Brushy slopes of Laguna Canyon 1.5 miles above the mouth. Comment
  UC971741  Dudleya multicaulis L. M. Booth 1932-5-18 1054 Orange Newport Bay 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
  RSA0062957  Dudleya pulverulenta subsp. pulverulenta Fred M. Roberts 2008-7-10 7076 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCR224165  Dudleya pulverulenta subsp. pulverulenta Fred M. Roberts 2008-7-10 7076 Orange South Coast, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west-northwest of Marine Institute, Dana Point Harbor 65 Comment
  POM93  Dudleya saxosa subsp. aloides P. A. Munz 1919-5-5 2796 Orange San Gorgonio Pass. Comment
  POM48549  Dudleya stolonifera F. M. Reed 1925-5-14 4994 Orange Aliso Canon. Comment
  UC933268  Dudleya stolonifera Reid Moran 1949-5-28 3259 Orange Aliso Canyon Laguna Beach Comment
  LA202506  Dudleya stolonifera Kei Nakai; 1978-4-19 359 Orange Aliso Canyon, ca. 300 m. E of Calif. Hwy 1 10.0 Comment
  RSA697178  Dudleya variegata Gray s.n. Orange Panorama Heights. Comment
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Jan 10 2015
  RSA17568  Dudleya viscida C. B. Wolf 1936-6-17 2596 Orange Santa Ana Mts., along Ortega Hwy, 6/10 mi below San Juan Hot Springs. 182 Comment
  UC115218  Dudleya viscida J. C. Nevin Oct 1881 Orange San Juan Comment
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Sep 1 2006
  RSA49  Echinochloa crus-galli Thos Howell 1927-10-29 787 Orange Near Cypress Station. 30 Comment
  RSA789588  Echinochloa crus-galli R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49634 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UC537283  Echinochloa crus-galli Lawrence M. Booth 1932-7-25 1314 Orange Santa Ana River Channel 2 mi from Ocean; Santa Ana River Channel Comment
  RSA708444  Echinochloa crus-galli Mark Elvin 2004-5-2 3426 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  RSA713568  Echinochloa crus-galli R. E. Riefner Jr. 2005-7-9 5 -552 Orange City of Huntington Beach, Huntington Central Park, Goldenwest St. near Slater Ave. 2 Comment
  UCD60958  Echinochloa esculenta Beecher Crampton 1965-10-27 7586 Orange 2 miles E of Irvine, UC South Coast Field Station. Comment
  POM202732  Echinochloa muricata var. microstachya L. M. Booth 1932-7-25 1314 Orange Santa Ana River 2 miles from ocean. Comment
  CAS-BOT-BC445608  Echinodorus berteroi I. M. Johnston 1918-9-3 2151 Orange Laguna Canon [Canyon], San Joaquin Hills 106 Comment
  RSA648653  Echinodorus berteroi R. E. Riefner 2000-8-21 20 -728 Orange Irvine Lake. First cove SE of Dam. USGS 7.5' Quad: Black Star Canyon. 237 Comment
  UC213654  Echinodorus berteroi D. L. Crawford 1916-7-26 Orange Laguna Canyon Laguna Beach Region, Laguna Canyon Comment
  UCSB57135  Echinodorus berteroi Marsh, G. 1975-7-28 Orange Huntington Beach; east Garden Grove-Wintersburg Flood Control Channel (No.C05); just N of Warner St. bridge crossing Comment
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Aug 18 2011
  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
  SD133156  Echium fastuosum A. C. Sanders 1990-10-6 10183 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2 km inland of Highway 1 0 Comment
  JEPS30718  Eclipta prostrata Peter H. Raven 1961-10-15 16849 Orange Anaheim Street, Anaheim, Santa Ana River Bed Santa Ana River Bed, Anaheim, Anaheim Street 60 Comment
  IRVC24281  Eclipta prostrata Fred M. Roberts, G. A. Marsh 1985-10-26 2518 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  SEINET10753656  Ehrharta calycina Scott D. White, M. Honer 2003-6-12 White 9542 Orange Southwestern Santa Ana Mts Foothills: Rancho Mission Viejo. Upper end of Trampas Canyon. (San Clemente.) 152 Comment
  RSA0038516  Ehrharta erecta R. E. Riefner Jr. 2012-2-1 12 -15 Orange city of Dana Point, Dana Point Harbor, vicinity of Puerto Pl. and Dana Point Harbor Drive 2 Comment
  RSA708812  Elatine brachysperma Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6165 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  UC1543169  Eleocharis Donald G. Nelson 1935-4-15 307 Orange On road from Garden Grove to Cosa Mesa, converging near Costa Mesa, toward main highway from Santa Ana Comment
  UCR193790  Eleocharis A. C. Sanders, Fred M. Roberts 2008-7-3 35701 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
  CAS-BOT-BC113331  Eleocharis montevidensis John Thomas Howell 1927-7-6 2660 Orange Wet soil of Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  UC455131  Eleocharis montevidensis I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  UCSB57546  Eleocharis montevidensis Roberts, Fred 1984-4-14 Orange Santa Ana Mtns.; Chiquito Basin, San Juan Trail, 1.9 km. SW Blue Jay Campground; 2.8 km. S Los Pinos Peak 840 Comment
  POM12446  Eleocharis palustris Phillip A. Munz 1922-9-2 6354 Orange Ponds in Laguna Canyon 46 Comment
  RSA0027434  Eleocharis palustris Fred M. Roberts 2012-7-18 7674 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
  UCR247917  Eleocharis palustris Fred M. Roberts 2012-7-18 7674 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
  UCSB47988  Eleocharis palustris Roberts, Jr., Fred 1980-6-25 Orange Santa Ana Mtns., San Juan Canyon, 2.4 km. ENE San Juan Guard Station; 0.3 km. WSW Bench Mark 1100 290 Comment
  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
  CAS-BOT-BC112162  Eleocharis radicans John Thomas Howell 1927-7-6 2659 Orange Wet soil in Santa Ana River bottom, Santa Ana Canon 152 Comment
  UCR84379  Eleocharis radicans Steve Boyd, T. S. Ross 1994-9-14 8354 Orange Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucas Canyon trail crossing. 305 Comment
  JEPS48807  Eleocharis rostellata Lawrence M. Booth 1932-6-4 1151 Orange Newport Bay Comment
  RSA723479  Eleusine coracana subsp. africana R. E. Riefner 2006-10-4 6 -477 Orange City of Huntington Beach, along Slater Ave. near Goldenwest St. 11 Comment
  RSA723492  Eleusine coracana subsp. africana R. E. Riefner 2005-10-17 5 -724 Orange City of Los Alamitos, Arroyo Park, Heather St. at Lamson Ave. 10 Comment
  RSA5828  Elymus X gouldii C. B. Wolf 1932-6-28 3794 Orange Bryant Ranch, north boundary of field. 9 Comment
  UCR191242  Elymus condensatus A. C. Sanders 2008-4-29 35137 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
  UCR207543  Elymus condensatus O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCD61903  Elymus glaucus R. M. Love 1942-4-16 Orange 8 miles east of Santa Ana. 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
  RSA539340  Elymus multisetus Fred M. Roberts, Carol A. Roberts 1988-6-9 4078 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  RSA594897  Emmenanthe penduliflora Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4910 Orange Santa Ana Mtns: San Juan Canyon, south side of California, route 74, 1.7kim WSW lower San Juan Picnic Ground. 354 Comment
  UCR191425  Emmenanthe penduliflora A. C. Sanders, Fred M. Roberts 2008-4-8 34776 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  IRVC649  Encelia californica L. Stilgenbauer 1965-3-28 Orange Corona del Mar, MacArthur Blvd. Newport Beach Comment
  LA103538  Encelia californica Barry A. Prigge; 1983-12-17 5518 Orange Santa Ana Marsh and adjacent lowlands, southeasternmost part of oil field just N of Pacific Coast Highway between remnant Santa Ana River channel and dirt road 1 Comment
  UCR223984  Encelia californica Dick Newell, Don Millar 2011-3-1 071 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  UCR99554  Encelia californica B. G. Pitzer 1996-4-30 2792 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UCR197698  Epilobium canum A. C. Sanders, Fred M. Roberts 2008-9-18 36084 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  CAS-BOT-BC166346  Epilobium canum subsp. canum Carl B. Wolf 1933-8-24 5384 Orange Santa Ana Mts. Along main divide motorway between Bedford Pk. & Santiago Pk. Comment
  CAS-BOT-BC166350  Epilobium canum subsp. canum John Thomas Howell 1927-7-26 2842 Orange SE. fork of Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
  CAS-BOT-BC5221  Epilobium canum subsp. canum David Daniels Keck 1932-9-30 1905 Orange Dana Point, near San Juan Capistrano. Comment
  UC284876  Epilobium canum subsp. canum P. A. Munz 1923-9-7 7764 Orange slopes from Trabuco Canyon to Santiago Peak; Santa Ana Mts. 1615 Comment
  UCSB52396  Epilobium canum subsp. canum Roberts, Fred 1982-9-20 Orange Santa Ana Mts., near jct. of San Juan and Chiquito Basin Trails, 1.4km SW Blue Jay Campground; 2.4km SSE Los Pinos Peak 974 Comment
  LA206111  Epilobium canum subsp. latifolium W. E. Pequegnat; August 1937 7 Orange Santa Ana Mountains, Santiago Peak, 8 mi. S of Corona Comment
  RSA588523  Epilobium ciliatum subsp. ciliatum M. B. Dunkle 1934-6-18 3982 Orange San Juan Canyon; Southern Coastal 305 Comment
  RSA72173  Epilobium ciliatum subsp. ciliatum F. W. Peirson 1924-5-31 4654 Orange Laguna Canyon, near Laguna Beach. 107 Comment
  RSA666097  Epilobium pygmaeum Fred M. Roberts, Michelle Lee 2001-6-4 5481 Orange Rancho Mission Viejo: Chiquita Ridge, 0.2km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 218 Comment
  SD245191  Epipactis gigantea R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49608 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA790023  Equisetum arvense R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49566 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  SD245160  Equisetum arvense R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49566 Orange Santa Ana Mountains: San Joan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA684625  Equisetum laevigatum Albert J. Perkins 1913-3-5 s.n. Orange San Juan Hot Springs Comment
  RSA699858  Equisetum laevigatum Dorothy Parsons 1932-4-5 s.n. Orange Santa Ana River Bank Comment
  RSA734342  Eragrostis barrelieri A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34633 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 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
  CAS-BOT-BC412826  Eragrostis mexicana subsp. virescens R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  SBBG128578  Eragrostis mexicana subsp. virescens R. F. Thorne, E. Lathrop, W. Wisura 1977-7-8 49567 Orange San Juan Cyn at lower picnic camp, just below Ortega Hwy (74); Santa Ana Mtns Comment
  RSA233016  Eremocarpus setiger Christopher Davidson, G. Benny 1971-6-15 1553 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  RSA430  Eremocarpus setiger J. T. Howell 1927-9-24 742 Orange Santa Ana Botany Garden 152 Comment
  CAS-BOT-BC187932  Eriastrum densifolium subsp. sanctorum John Thomas Howell 1927-8-13 2985 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  JEPS69115  Eriastrum sapphirinum John Thomas Howell 1927-6-9 2471 Orange Santa Ana Canyon Rancho Santa Ana 213 Comment
  RSA759242  Ericameria cuneata Robt Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak. W Facing slope within 2 meters of the access road up Modjeska Peak. Approximately midway between the peak's south-facing slope and the sharp bend in extreme N end of the road. 1643 Comment
  CHSC346  Ericameria linearifolia S. Westerberg 1938-3-25 Orange Santa Ana. Comment
  JEPS19147  Ericameria palmeri var. pachylepis John Thomas Howell 1927-9-24 3114 Orange Santa Ana Canon Rancho Santa Ana, Santa Ana Canon 152 Comment
  POM201792  Ericameria palmeri var. pachylepis L. M. Booth s.n. Orange Newport Beach Comment
  RSA167489  Ericameria parishii R. F. Thorne, John Olmsted 1963-7-26 32830 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA7387  Ericameria parishii C. B. Wolf 1933-8-24 5407 Orange Main divide motorway S of Beaford Peak, Santa Ana Mts 1067 Comment
  UCR256886  Ericameria parishii Naomi Fraga, Duncan S. Bell, Sarah J. De Groot 2009-9-11 3157 Orange Peninsular Ranges; Santa Ana Mountains region, Blue Jay Campground 910 Comment
  CAS-BOT-BC131636  Ericameria parishii var. parishii James R. Shevock 1976-10-28 5351 Orange Along the north slope of Pleasants Peak off of FS road 3S04, Santa Ana Mts., Cleveland National Forest 1219 Comment
  CAS-BOT-BC293091  Ericameria pinifolia John Thomas Howell 1927-10-23 3172 Orange On n. side of Santa Ana Canon [Canyon] 152 Comment
  IRVC20221  Ericameria pinifolia Fred M. Roberts 1982-10-14 829 Orange Temple Hill, 1.1km NNW Top of the World School, Laguna Beach 259 Comment
  UC1118806  Ericameria pinifolia A. Lewis 1934-4-1 397 Orange San Joaquin Hills Corona Quad., San Joaquin Hills 304 Comment
  UCR229209  Ericameria pinifolia Dick Newell, Peter Wetzel 2011-6-28 197 Orange South Coast, San Joaquin Hills, Willow Canyon, Laguna Coastal Wilderness Park 89 Comment
  IRVC9107  Erigeron foliosus var. stenophyllus R. Seibel 1966-5-18 132 Orange Old Rancho Santa Ana Botanical Garden at end of Orangethorpe Ave. Chino Hills Comment
  POM357495  Erigeron foliosus var. stenophyllus M. B. Dunkle 1933-5-30 3578 Orange Santa Ana Canyon Comment
  RSA699659  Eriodictyon crassifolium Keith E. Hoffmaster 1931-3-22 s.n. Orange Santa Ana Mountains Comment
  RSA721834  Eriodictyon crassifolium Minor Warne 1934-4-14 s.n. Orange Laguna Canyon. Comment
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Jun 24 2009
  SJSU8878  Eriodictyon crassifolium H. E. McMinn 1935-6-22 3929 Orange Ridge above Clay Mine Canyon, N end of Santa Ana Mts Comment
  SEINET10697903  Eriodictyon crassifolium var. crassifolium Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 1 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  UCR230225  Eriodictyon crassifolium var. crassifolium Dick Newell, Ed Hill 2011-3-29 096 Orange Peninsular Range; Santa Ana Mtns., below mouth of Weir Canyon, near Outdoor Education Center 165 Comment
  SEINET6336298  Eriogonum crocatum Czarnecki 1966-4-13 67 Orange Old botanical gardens on Rancho Santa Ana. Comment
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Nov 3 2015
  RSA749687  Eriogonum elongatum A. C. Sanders, Fred M. Roberts 2008-7-16 35829 Orange Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  UCR103282  Eriogonum elongatum B. G. Pitzer, T. Tennant 1997-11-8 3369 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  JEPS56997  Eriogonum elongatum var. elongatum Lawrence M. Booth 1932-8-9 1370 Orange Newport Bay Comment
  RSA0031722  Eriogonum fasciculatum Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-25 63 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  RSA393516  Eriogonum fasciculatum M. B. Dunkle 1933-4-9 3271 Orange Dana Point. Comment
  RSA669571  Eriogonum fasciculatum D. B. Boatman 1969-3-16 690316 -6 Orange 1/2 mile E crossroads Newport Blvd. and Skyline Dr. Tustin. 91 Comment
  RSA698424  Eriogonum fasciculatum Minor Warne 1934-4-27 s.n. Orange Ladd Canyon. Comment
  UCR192100  Eriogonum fasciculatum subsp. foliolosum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35286 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  CAS-BOT-BC253221  Eriogonum fasciculatum var. fasciculatum H. F. Copeland 1938-6-28 s.n. Orange Laguna Beach 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
  SD254072  Eriogonum fasciculatum var. fasciculatum Jim Riley 2013-12-10 135 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  SD38687  Eriogonum fasciculatum var. fasciculatum Edith A. Purer 1932-8-31 4872 Orange Orange Co. near Route #101 Comment
  SEINET6418402  Eriogonum fasciculatum var. fasciculatum Thomas C. Hensel 1973-7-5 251 Orange Hillside adjacent to southern end of Santa Ana Dr. Laguna Beach 229 Comment
  UCD105100  Eriogonum fasciculatum var. fasciculatum K. M. Meyer; A. Townesmith 2007-3-10 4 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  RSA393427  Eriogonum fasciculatum var. foliolosum M. B. Dunkle 1933-3-5 3094 Orange San Juan Canyon 305 Comment
  RSA542525  Eriogonum fasciculatum var. foliolosum Fred M. Roberts 1988-5-13 3971 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  UCR131886  Eriogonum fasciculatum var. foliolosum J. Mallory, V. McCoy 1995-7-3 6454- 69 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  RSA679229  Eriogonum fasciculatum var. polifolium Fred M. Roberts 2003-6-25 5941 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  CAS-BOT-BC253476  Eriogonum gracile Helen D. Geis 1902-3-1 s.n. Orange Santiago Canyon Comment
  CAS-BOT-BC253482  Eriogonum gracile John Thomas Howell 1927-7-24 2832 Orange Claymine Canyon, N. Santa Ana Mts. 152 Comment
  RSA393245  Eriogonum gracile var. gracile J. T. Howell 1927-7-16 2781 Orange Hills on N side of Santa Ana Canyon. 152 Comment
  RSA701602  Eriogonum molestum J. Russell Bruff 1931-6-23 s.n. Orange S Fork Santa Ana River Comment
  POM18087  Eriogonum nudum var. pauciflorum P. A. Munz 1923-9-7 7750 Orange Santiago Peak, Santa Ana Mountains. 1646 Comment
  RSA528048  Eriogonum parvifolium A. C. Sanders 1990-10-6 10179 Orange Newport Bay, Westcliff Park area on the SW end of the bay, 1km inland of Hwy 1. 1 Comment
  RSA542469  Eriogonum parvifolium Fred M. Roberts 1988-10-12 4160 Orange San Clemente State Park: ca. 0.3km SE end of Ave. Califia along Santa Fe RR. 3 Comment
  POM2292  Eriogonum parvifolium var. parvifolium D. L. Crawford s.n. Orange Abalone Pt Comment
  RSA424463  Eriogonum parvifolium var. parvifolium E. S. Spalding 1923-12-1 s.n. Orange Opposite San Juan Capistrano Comment
  CAS-BOT-BC263020  Eriogonum thurberi John Thomas Howell 1927-6-6 2452 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  RSA6141  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange Santa Ana River bottom. Rancho Santa Ana south of the Walnut Grove. 122 Comment
  UC912801  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange river bottom s Walnut Grove; Rancho Santa Ana, Santa Ana Canyon 121 Comment
  RSA16348  Eriophyllum confertiflorum Percy C. Everett 1935-6-18 7185 Orange Santa Ana Mountains. Main divide motorway to Santiago Peak, 1 mile from Ortega Highway. 732 Comment
  RSA695678  Eriophyllum confertiflorum Minor Warne 1934-3-21 s.n Orange Limestone Canyon. Santa Ana Mts. Comment
  UCR192113  Eriophyllum confertiflorum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35316 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  IRVC21386  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey 1968-7-9 408 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  LA203539  Eriophyllum confertiflorum var. confertiflorum W. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  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
  RSA732159  Erodium botrys A. C. Sanders, Fred M. Roberts 2008-4-22 35034 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 1200 Comment
  SEINET10890419  Erodium botrys Greg Gust, Leith Nye 2005-3-12 Gust 566 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  RSA583212  Erodium brachycarpum R. E. Riefner Jr. 1998-4-17 95 -72 Orange San Clemente State Beach. Comment
  RSA743496  Erodium cicutarium Fred M. Roberts 2008-3-19 6781 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  SD235040  Erythranthe floribunda A. C. Sanders, T. B. Salvato 2008-5-13 35335 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
  OBI11782  Eschscholzia caespitosa Carl B. Wolf 1935-6-19 7222 Orange Santa Ana Mts, Main divide Motorway 1-2/10 mi below summit of Santiago Peak, E slope 1372 Comment
  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
  RSA0060574  Eschscholzia californica Darren Day, Hal Willis 1984-4-28 005 Orange Found growing at the side of Laguna Canyon Rd. exactly 2.5 miles outside of the city limits, heading north. Comment
  UCSB18078  Eschscholzia californica Shaw, Merrilee 1963-4-10 Orange Fernlead Drive, at intersection with Bayshore Drive, 1/2 mile S of U.S. Highway 101, Corona del Mar 24 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
  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
  SEINET6692539 Image available Eucalyptus camaldulensis var. camaldulensis A. C. Sanders, T. B. Salvato 2008-1 35370 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR193326  Eucalyptus camaldulensis var. camaldulensis A. C. Sanders, T. B. Salvato 2008-5-13 35370 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  SEINET3012141 Image available Eucalyptus tereticornis Dave Goodward 1987-4-16 4 Orange Irvine Ranch, Boy Scout Camp in Peters Canyon E of Tustin, 1 mi NE of the Irvine Blvd/Myford Rd intersection. 120 Comment
  CDA23092  Eucalyptus utilis Mark A. Elvin, D. G. Kelch 2006-12-9 5305 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA704833  Eucrypta chrysanthemifolia Unspecified s.n. Orange Modjeska s Home. Comment
  UCR192463  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-3-25 34531 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC25150  Euphorbia albomarginata Fred M. Roberts 1986-9-3 3134 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  UCR186135  Euphorbia maculata T. B. Salvato, Katie Kurtz 2006-10-15 1917 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  RSA697587  Euphorbia maculata J. Vlahos 1933-10-15 s.n. Orange Parking along BentonWay. Santa Ana. Comment
  POM201836  Euphorbia misera L. M. Booth 1932-7-23 1300 Orange Corona del Mar, Newport Beach. Comment
  RSA719422  Euphorbia misera Fred M. Roberts, Lee Ann Caranza 2006-10-25 6455 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  SD109124  Euphorbia misera Grady L. Webster 1966-12-11 7479 Orange Dana Point ocean bluffs on south-facing precipitous slopes at the tops of the bluffs Comment
  UCD170887  Euphorbia misera R. E. Riefner Jr. 2013-1-16 13 -16 Orange South Coast, city of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach. 3 Comment
  UCR267185  Euphorbia misera Fred M. Roberts 2010-3-12 7175 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
  SBBG128746  Euphorbia misera R. E. Riefner Jr. 2012-10-16 12 -518 Orange City of Dana Point, Dana Point Harbor, 'Bluff Top Trail' located near Camino Capistrano and Violet Lantern Sts 35 Comment
  RSA752715  Euphorbia peplus Fred M. Roberts, Sandy Leatherman, Jennifer Pareti 2009-4-14 7151 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
  SEINET3089588 Image available Euphorbia peplus J. Harry Lehr 1974-5-26 1245 Orange Corner State College Blvd. & Balsam St. 30 Comment
  RSA562743  Euphorbia peplus Steve Boyd, T. S. Ross 1992-5-19 7439 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  UCD142472  Euphorbia peplus R. Townsend 1939-12-28 152 Orange Yorba Linda. Comment
  UCSB56679  Euphorbia peplus Roberts, Jr., Fred 1984-2-4 Orange South Laguna; Aliso Canyon near mouth, 0.7 km. WNW Aliso Peak 15 Comment
  RSA680738  Euphorbia polycarpa Scott D. White 2003-3-21 8818 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UCR52297  Euphorbia polycarpa B. G. Pitzer, D. C. Hawks 1986-12-17 0381 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
  RSA797434  Euphorbia polycarpa Keith E. Hoffmaster 1927-3-13 s.n. Orange Laguna Canyon, Santa Ana Mountains. Comment
  SEINET12142111  Euphorbia polycarpa J. F. Bright, Wyman, C. 1933-1 8091 Orange In Santa Ana Foothills Comment
  IRVC17085  Euphorbia serpyllifolia var. hirtula A. B. McGee 1980-9-9 Orange San Diego Creek Channel, adjacent to San Joaquin Freshwater Marsh. Irvine Comment
  SD255109  Euthamia occidentalis R. F. Thorne 1977-11-21 49982 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp. Comment
  UCR193048  Festuca arundinacea A. C. Sanders, Mitch Provance 2008-5-20 35410 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR239640  Festuca pratensis Fred M. Roberts 2012-5-9 7559 Orange Santa Ana Mountains, Lake Forest, along Serrano Creek hiking trail, 1.0 m south-southwest of intersection of Commercentre and Dimension Drives 171 Comment
  CAS-BOT-BC474742  Ficus carica R. E. Riefner, Jr. 2015-10-26 15 -423 Orange City of Laguna Beach, along Cliff Dr. at La Brea St. 24 Comment
  RSA725507  Ficus carica Fred M. Roberts 2007-9-11 6568 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  CAS-BOT-BC474724  Ficus microcarpa R. E. Riefner, Jr. 2014-6-21 14 -186 Orange City of Laguna Beach, N side of North Coast Hwy near intersection with Cliff Dr. 10 Comment
  CAS-BOT-BC474738  Ficus microcarpa R. E. Riefner, Jr. 2015-8-29 15 -368 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco 363 Comment
  CAS-BOT-BC502097  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -383 Orange City of Anaheim, Pearson Park, SE section of park, N of N. Helena St, and W. Cypress St., near jct. of N. Lemon St., and W. Cypress St. 44 Comment
  UCR266147  Ficus rubiginosa R. E. Riefner Jr. 2014-2-24 14- 65 Orange South Coast, city of Dana Point, west c. 0.1 mi from Island Way along Dana Point Harbor Drive, cliff slope immediately south of Santa Clara Avenue and Amber Lantern Street 11 Comment
  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
  CHSC35808  Foeniculum vulgare James Henrickson 1972-10-21 8053 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. Along La Palma Ave., just N. of Santa Ana River. 60 Comment
  IRVC26714  Fouquieria diguetii Mark A. Elvin, Jenny Liou, Jill Carpenter, Josephine Nguyen 2004-3-8 3155 Orange UCI Arboretum Southern Coastal 15 Comment
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Aug 18 2009
  RSA699264  Fragaria John Murphy 1938-6-6 s.n. Orange Birch Park Comment
  SBBG92712  Frangula californica subsp. californica R. Moran 1975-7-18 22598 Orange near Yaeger Mine, upper Trabuco Cyn 725 Comment
  UCD50249  Frangula purshiana Daniel I. Axelrod 1971-1-22 2 ax Orange By T on Trabuco on Santiago Peak topog. Inside CNF Boundary where road crosses 1 st Creek. Creek crosses to the south side of the canyon. Core in Trabuco Canyon. In Cleveland Nat'l Forest, Santa Ana Mountains, Orange County. Comment
  RSA391397  Frankenia grandifolia Ella M. Kennedy 1923-5-14 s.n. Orange Laguna Beach. Comment
  RSA609140  Frankenia grandifolia Louis C. Wheeler 1932-6-22 844 Orange Newport Bay. 1 Comment
  PASA432  Frankenia grandifolia var. campestris Frank W. Peirson 1924-5-31 Orange Laguna Canyon 91 Comment
  HSC24453  Frankenia salina L. Neuenschwander 1970-8-20 58 Orange 4 mi. S of Seal Beach at Bolsa Chica Salt Marsh 0 Comment
  IRVC1372  Frankenia salina Dorleene Van Gorden 1965-5-9 s.n. Orange Silverado Canyon. Peninsular Ranges, Santa Ana Mountains Comment
  JEPS30094  Frankenia salina L. M. Booth 1932-5-12 1037 Orange Newport Bay Comment
  SD39967  Frankenia salina Edith A. Purer 1932-8-31 4874 Orange Along Route 101. Comment
  UCR224032  Frankenia salina Justin M. Wood 2009-12-1 1394 Orange South Coast, Santa Ana River, marsh just upstream of Pacific Coast Highway 2 Comment
  RSA69893  Fraxinus dipetala F. W. Peirson 1925-4-10 5743 Orange In Silverado Canyon. 610 Comment
  UC2042136  Fraxinus dipetala R. F. Thorne and C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. [locality information from field label; note on newspaper 'N slope Pleasant's Pk, 1.5 mi S Beek's Place] Comment
  UCR192976  Fraxinus uhdei A. C. Sanders, Fred M. Roberts 2008-6-17 35464 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA649055  Fritillaria biflora D. E. Bramlet 2000-4-12 2978 Orange Tributary to Fremont Canyon. the site is 396m northwest of the Edison Spur road and 1.2km southeast of the Fremont ridge road. The locality is 305m southwest of knoll 1515. 372 Comment
  RSA749488  Fritillaria biflora Fred M. Roberts, Linda Farley 2008-3-28 6822 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robbers Peak, Irvine Land Conservancy. 457 Comment
  CAS-BOT-BC422453  Fumaria officinalis Ira L. Wiggins 1965-12-5 20366 Orange 2 mi. E. of Atwood on N. side of Orangethorpe Avenue. Comment
  CHSC106536  Funastrum cynanchoides var. hartwegii Robt. Allen; Alison Linden 2007-5-17 Orange Irvine, Turtle Rock community, Chaparral Park, due N of Turtle Rock Dr, due E of Highgate terrace. UTM Zone 11S; 3722013N 0424400E. 136 Comment
  RSA539416  Funastrum cynanchoides var. hartwegii Fred M. Roberts, D. Willick 1988-9-16 4133 Orange Peralta Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.1 km N Robbers Peak 177 Comment
  RSA759247  Funastrum cynanchoides var. hartwegii Robt. Allen, Alison Linden 2007-5-17 s.n. Orange Irvine, Turtle Rock community, Chaparral Park, due N of Turtle Rock Dr, due E of Highgate terrace. 136 Comment
  LA208397  Galium angustifolium Norman C. Cooper; 1944-6-4 Orange San Juan Canyon 304 Comment
  UCR106292  Galium angustifolium B. G. Pitzer, M. Georgiady 1997-4-5 3069 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  HSC19777  Galium angustifolium subsp. angustifolium J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  JEPS56089  Galium angustifolium subsp. angustifolium Lauramay T. Dempster and G. L. Stebbins 1967-3-21 4352 Orange canyon on road to Modjeska's Home 1 mi nw Cook's Corner Comment
  JEPS7865  Galium angustifolium subsp. angustifolium Lawrence M. Booth 1932-6-4 1252 Orange Newport Bay Comment
  POM367703  Galium angustifolium subsp. angustifolium N. C. Cooper 1949-5-1 3950 Orange San Juan Canyon 610 Comment
  RSA636102  Galium angustifolium subsp. angustifolium Valerie L. Soza, LeRoy Gross 1999-6-7 490 a Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UCR227752  Galium angustifolium subsp. angustifolium R. F. Thorne 1963-7-26 32825 Orange Santa Ana Mountains, Cleveland National Forest, [vicinity of road from Beek's Spring to Pleasants Peak], Trabuco District 1159 Comment
  RSA588726  Galium aparine Fred M. Roberts Jr. 1990-5-7 4604 Orange Rancho Mission Viejo: Ridge south of Blind Canyon and east of Christianitos Canyon, TRW Lease Hold, 5.0 km NE Clemente Survey Marker. 152 Comment
  CDA42130  Galium aparine D. H. Byers 1957-6-25 s.n. Orange [No further data.] 0 Comment
  UCSC001312  Galium aparine Peter Kamb 1948-6-19 1091 Orange Holy Jim Canyon, Santa Ana Mts. 610 Comment
  UCR140795  Galium nuttallii Robin G. Marushia 2004-4-16 021 Orange Southern Coast, El Moro Canyon, Crystal Cove State Park, Laguna Beach; grassy ridge southwest of No Name Ridge road in park, downhill from pullout and below closed road to park entrance 244 Comment
  RSA542398  Galium parisiense Fred M. Roberts, K. Keane 1988-5-26 4013 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  RSA562824  Galium porrigens Steve D. Boyd, Tim S. Ross 1992-5-20 7457 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing Lucas Canyon Trail., Upstream 1/4 mile to spur trail leading to old mining habitations in side canyon. 305 Comment
  RSA5291  Garrya flavescens B. D. Stark 1933-1-5 4505 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  UC1122672  Garrya flavescens H. E. Norton 1931-3-21 47 Orange Bedford Peak; Corona Quad. 1066 Comment
  CHSC116473  Garrya flavescens subsp. pallida R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49700 Orange Northern Santa Ana Mountains: Sierra Peak. 900 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
  SEINET3237951 Image available Gastridium ventricosum A. C. Sanders 2008-4-29 35131 Orange Peninsular Range; Santa Ana Mtns.; Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  UCR191247  Gastridium ventricosum A. C. Sanders 2008-4-29 35131 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  RSA749359  Gaura coccinea Fred M. Roberts 2008-4-15 6898 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn., east ridge, Conservation Trail, 1.6 km ESE Rattlesnake Reservoir dam and 2.6 km WSW Bee Peak, Irvine Ranch Conservancy. 183 Comment
  CDA5145  Gaura coccinea Margaret Bellue, Andreas, E. L. Paddock 1942-8-29 Orange Stearns, La Brea Road, 1 mile north of Fullerton 0 Comment
  CDA5141  Gaura coccinea var. epilobioides E. Johnson 1939-8-3 Orange Brea. 0 Comment
  CDA20329  Gaura drummondii T. Maloney 2005-5-5 PDR 1367689 Orange Fullerton. Craig Regional Park. 3300 N. State College Blvd. 0 Comment
  RSA696698  Geranium carolinianum Keith E. Hoffmaster 1935-5-5 s.n. Orange San Juan Canyon., Santa Ana Mts. Comment
  SBBG127247  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-30 12 -285 Orange Talbert Regional Park, general vicinity of Balboa Blvd and 19th St; Costa Mesa 5 Comment
  RSA732081  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34550 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA734014  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-4-22 35061 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfil on road from H icks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado. 493 Comment
  SEINET7073429  Gilia angelensis A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UCR237930  Gilia angelensis Dick Newell, Don Millar 2012-6-5 271 Orange Peninsular Range; Santa Ana Mtns., Loma Ridge East, 0.35 mi. due east of Hicks Haul Rd. 411 Comment
  RSA698339  Gilia capitata Anonymous 1932-5-1 s.n. Orange Field weed near Anaheim. Comment
  RSA470266  Gilia capitata subsp. abrotanifolia M. B. Dunkle 1933-5-30 3579 Orange Santa Ana Canyon. Comment
  POM256716  Gilia capitata subsp. abrotanifolia W. Pequegnat 1940-5-24 s.n. Orange Modjeska Flat. Comment
  RSA552949  Githopsis diffusa subsp. candida Fred M. Roberts 1989-4-20 4293 Orange Santa Ana Mtns.: upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5km SE Los Pinos Peak. 980 Comment
  CAS-BOT-BC303650  Glebionis coronaria Helen D. Geis 1902-1-1 538 Orange Santiago Creek Comment
  IRVC441  Gnaphalium bicolor B. Savage 1965-5-15 Orange Newport Beach Comment
  UCR193463  Gnaphalium canescens subsp. microcephalum A. C. Sanders, T. B. Salvato 2008-5-13 35353 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA860  Gnaphalium chilense J. T. Howell 1927-10-29 781 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA703730  Gnaphalium leucocephalum Fred M. Roberts, David E. Bramlet 2004-7-30 6088 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy Cristianitos Canyon, along Cristianitos Ck., 0.93 km SSW Gato Gate and 0.23 km W Cristianitos Road. 76 Comment
  UCR150566  Gnaphalium leucocephalum Scott D. White, Matt Carlton 2003-11-20 9874 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 37 Comment
  IRVC15124  Gnaphalium microcephalum var. microcephalum A. S. Boughey 1968-4-16 225 Orange Santiago Canyon/Lower Modjeska Cyn, Fleming Property. Santa Ana Mountains Comment
  UCR191356  Gnaphalium palustre A. C. Sanders, Fred M. Roberts 2008-4-8 34736 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCSB52897  Gnaphalium palustre Roberts, Fred 1983-3-16 Orange Laguna Beach: Sycamore Hills, central ridge, 1.5km NNE jct. El Toro and Laguna Canyon Rds.; 5.5km ESE Signal Peak 175 Comment
  UCR190987  Gnaphalium stramineum A. C. Sanders, Fred M. Roberts 2008-4-22 34991 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
  CDA6068  Gnaphalium stramineum Walden 1951-5-24 Orange Dr. Beebe, southwest corner Gilbert & Orange, Anaheim. 0 Comment
  IRVC9357  Gnaphalium stramineum B. T. Gittins 1963-5-29 239 Orange Orange State College. Fullerton Comment
  UCR207597  Grindelia O. F. Clarke 2004-5-19 s.n. Orange South Coast, Fairview Park, Costa Mesa 24 Comment
  LA203653  Grindelia camporum J. A. Ewan; 1932-7-28 7703 Orange Corona del Mar Comment
  SD60356  Grindelia camporum Peter H. Raven 1959-4-30 14038 Orange Base of ocean bluffs just north of San Clemente. Comment
  IRVC20018  Grindelia camporum var. bracteosa Fred M. Roberts 1981-6-20 276 Orange 0.7km ENE Dana Hills High School, Dana Point 76 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
  CAS-BOT-BC305208  Grindelia hirsutula John Thomas Howell 1931-6-1 6624 Orange San Clemente Comment
  JEPS57260  Grindelia hirsutula L. R. Heckard and R. C. Bacigalupi 1968-5-8 1836 Orange on terrace back of ocean just n of Doheny Beach Park Dana Point Comment
  UC1543105  Grindelia hirsutula Donald G. Nelson 1935-6-27 333 Orange on bluffs facing ocean beaches s Corona del Mar (s of mouth of Newport Bay) Comment
  UC407318  Grindelia hirsutula LeRoy Abrams 1903-4-19 3273 Orange Capistrano Comment
  UC536899  Grindelia hirsutula Lawrence M. Booth 1932-5-24 1092 Orange Newport Bay Comment
  UC729956  Grindelia hirsutula Carl B. Wolf 1932-7-2 3810 Orange Valencia Ave opposite Olinda Pilgrim Church; Olinda 152 Comment
  UCD85224  Hainardia cylindrica A. A. Beetle 1942-4-19 3092 Orange 20 miles S of Santa Ana, road to Laguna. Comment
  IRVC26430  Haplopappus canus Mark A. Elvin 2004-2-22 3154 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR18041  Haplopappus menziesii A. C. Sanders, W. W. Wright 1974-5-28 00133 Orange South Coast, Newport back bay [Upper Newport Bay], along Bayside Drive 30 Comment
  UCR195012  Haplopappus menziesii A. C. Sanders, Fred M. Roberts 2008-8-7 35975 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
  UCR218455  Hedera canariensis Robert DeRuff 2008-1 134 Orange South Coast, Upper Newport Bay, between Mariner's Drive and North Star Beach 6 Comment
  RSA269264  Hedyotis corymbosa G. D. Barbe 1973-8-9 1695 Orange Bordier's Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). Comment
  RSA749471  Hedypnois cretica Fred M. Roberts, Linda Farley 2008-3-28 6826 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  RSA734962  Helianthemum scoparium A. C. Sanders, Fred M. Roberts, A. O'Neal 2008-5-9 35309 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 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
  IRVC777  Helianthus annuus D. Christy 1973-8-1 Orange Newport Back Bay. L.J. Colin MACF 20494. Newport Beach: Bayside Dr. Newport Beach Comment
  RSA696894  Helianthus annuus Kenneth Beard 1934-02 s.n. Orange Waste land along highway near Stanton. Comment
  RSA697136  Helianthus annuus Anonymous s.n. Orange Santa Ana Comment
  UCD132887  Helianthus annuus Ira L. Wiggins 1965-11-6 20339 Orange Kraemer Oil Estates, near well no. 14, near end of county road leading to Rancho santa Ana (extension of Orangethorpe Blvd.) Comment
  UCSB18935  Helianthus annuus Cummings, Bob 1963-5-11 Orange U.S. Highway 101 alternate, 2 miles NW of San Clemente Comment
  POM201743  Helianthus annuus subsp. lenticularis L. M. Booth 1932-6-29 1230 Orange Newport Bay. Comment
  RSA643433  Helianthus ciliaris R. D. Goeden, D. W. Ricker 1965-7-7 s.n. Orange Laguna Hills: Veeh Ranch, ca. 1.5 mi. W of El Toro. 91 Comment
  CAS-BOT-BC305657  Helianthus ciliaris E. Paddock 1942-7-21 11291 Orange Toler Ranch, N. side Ocean Ave., 1/4 mi. W. of La Mirada Rd., LaHabra Comment
  UCD132779  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, north of El toro, around 11 miles southeast of Tustin. Comment
  RSA751324  Helianthus gracilentus A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35293 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  RSA92427  Helianthus gracilentus F. W. Peirson 1923-5-5 4147 Orange Trabuco Canyon, Santa Ana Mts. 549 Comment
  RSA696163  Heliotropium M. Funakoshi 1941-11-27 s.n. Orange Santa Ana. Comment
  IRVC29807  Heliotropium curassavicum Laura D. Lyons, Mark A. Elvin 2006-9-23 421 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
  UCSB48091  Heliotropium curassavicum Roberts, Jr., Fred 1981-5-2 Orange Mission Viejo: Camino Capistrano, 1.7km N Crown Valley Parkway 49 Comment
  POM319997  Heliotropium curassavicum var. oculatum Greg Wright 1971-7-17 313 Orange Pacific Coast Highway south of Laguna, Aliso Creek, inland from highway. 8 Comment
  CSUSB739  Heliotropium curassavicum var. oculatum Cesareo Perez 1971-5-15 Orange Huntington State Beach Pacific Coast Highway @ Brookhurst, Huntington Beach, CA. Comment
  CAS-BOT-BC305898  Helminthotheca echioides Ira L. Wiggins 1965-10-18 20278 Orange At NE corner of Chapman Ave. and Victor Dr., Fullerton 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
  RSA807  Hemizonia australis J. T. Howell 1927-6-30 234 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA734120  Hemizonia fasciculata A. C. Sanders 2008-4-29 35142 Orange Peninsular Range;Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridgeon road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR209343  Hemizonia fasciculata Fred M. Roberts 2008-4-22 6922 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, along Haul Road near asphalt plant, 2.2 km east-northeast of Rattlesnake Reservoir Dam and 2.2 km west-northwest of Bee Peak, Irvine Ranch Conservancy 188 Comment
  RSA542437  Hemizonia paniculata Fred M. Roberts 1988-7-29 4125 Orange Aliso Viejo: Upper Wood Canyon, 1.5 km N Moulton Peak. 165 Comment
  UCR158024  Hemizonia parryi subsp. australis Adrian Wolf 1998-7-21 365 Orange South Coast, Sand Canyon, William R. Mason Regional Park, west of University Dr.--Yale intersection, between Culver and Ridgeline 34 Comment
  UCR158036  Hemizonia parryi subsp. australis Adrian Wolf 1998-7-1 410 Orange South Coast, Peters Canyon Channel, east of channel near Harvard Ballfield, between Harvard Ave. & creek, south of Warner Ave. to Barranca 15 Comment
  CAS-BOT-BC403799  Hesperocnide tenella Steve Boyd; Tim Ross 1992-5-19 7440 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon 335 Comment
  SD40680  Hesperocyparis forbesii Carl B. Wolf 1935-1-2 Orange Santa Ana Mountains, slopes of Sierra Peak, west of Claymine Canyon along road to peak 669 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
  UC527322  Heteromeles arbutifolia Carl B. Wolf and B. D. Stark 1932-12-19 Orange 0.5 mi from Skyline Drive (on firebreak road to Sierra Peak); Santa Ana Mts. 762 Comment
  UCR100450  Heteromeles arbutifolia B. G. Pitzer 1996-4-30 2781 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA0072396  Heteromeles arbutifolia David A. Young 1969-5-26 P 495 Orange Firestone Boy Scout Camp in Brea Canyon. 274 Comment
  RSA0072397  Heteromeles arbutifolia Fred M. Roberts 1986-11-5 3204 Orange Santa Ana Mts.: Upper Mabey Canyon near top of Skyline Dr., 2.7 km SE Sierra Peak, NE of Oak Flat. 850 Comment
  CAS-BOT-BC318905  Heterotheca grandiflora Ira L. Wiggins 1965-9-6 20354 Orange Kraemer Oil Estates near Well #14 near end of county road to Rancho Santa Ana Comment
  SEINET11266845  Heterotheca grandiflora R. Nelson, Baumann; Kondratieff; Sargent 1988-1-12 5117 Orange San Juan Creek at Lower San Juan Campground.; 0 366 Comment
  UC912305  Heterotheca grandiflora Herbert L. Mason 1926-4-25 2901 Orange 5 mi s Laguna Comment
  UCR100186  Heterotheca grandiflora Scott D. White 1996-12-20 4639 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  CAS-BOT-BC318901  Heterotheca grandiflora F. H. Billings 1923-3-1 s.n. Orange Santa Ana wash Comment
  SD113060  Heterotheca grandiflora Darley F. Howe 1971-10-25 4791 Orange Near corner of Brookhurst and Lincoln Ave., Anaheim. Comment
  SEINET2073666  Heterotheca grandiflora R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, hard-packed sand on top of sand hill. Comment
  RSA749682  Heterotheca sessiliflora A. C. Sanders, Fred M. Roberts 2008-7-16 35848 Orange Lomas de Santiago, Limestone Canyon 325 Comment
  UCR220968  Heterotheca sessiliflora Dick Newell, Don Millar 2010-8-17 32 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Ridge Rd. 200 ft. south of Markel Spur Rd., 0.8 mi. west of Santiago Canyon rd, 427 Comment
  JEPS2412  Heterotheca sessiliflora subsp. echioides L. M. Booth 1932-7-29 1330 Orange Newport Bay Comment
  UCD133095  Heterotheca sessiliflora subsp. sessiliflora J. C. Elmore 1929-9-26 2164 Orange San Juan Capistrano. Comment
  UCR80021  Heterotheca subaxillaris Scott D. White 1992-10-13 961 Orange City of Brea, north of Carbon Cyn Rd. & east of Placentia Ave. 1 mi SSE of Tonner Cyn 183 Comment
  RSA708734  Hoita macrostachya Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6119 Orange Caspers Wilderness Park, Hot Springs Creek in San Juan Cyn., c.a. 0.36km SSW San Juan Ranger Station, at SR 74 crossing. 197 Comment
  IRVC14605  Hoita macrostachya 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
  IRVC18572  Holocarpha virgata Karlin G. Marsh 1980-8-13 Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  SEINET6654708  Holocarpha virgata subsp. elongata R. E. Riefner Jr. 2003-10-14 03 -421 Orange San Clemente State Beach, mima mound field in SW corner of park.; 0 27 Comment
  RSA548862  Holodiscus boursieri Fred M. Roberts, Carol A. Roberts 1988-6-10 4094 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit 1542 Comment
  RSA7466  Holodiscus discolor Carl B. Wolf 1933-8-24 5390 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  UC592898  Holodiscus discolor Carl B. Wolf 1933-8-24 5390 Orange Santa Ana Mountains, Summit of Santiago Peak Summit of Santiago Peak; Santa Ana Mountains, Summit of Santiago Peak 1731 Comment
  RSA542405  Holodiscus discolor var. franciscanus Fred M. Roberts Jr., R. E. Riefner 1988-7-19 4120 Orange Modjeska Peak, west slope, along old abandoned road, 0.2 km west summit 1592 Comment
  UCSB47956  Hordeum brachyantherum subsp. californicum Roberts, Dar 1980-5-4 Orange .8 km North Northern tip of Thunderbird Homes, Dana Point 61 Comment
  RSA701429  Hordeum depressum Rankin s.n. Orange Laguna Beach Comment
  RSA599591  Hordeum intercedens Fred M. Roberts, Nigel Hancock 1995-5-25 4946 Orange Costa Mesa: Fairview Park, just west of end of Canyon Drive, 0.1 km W Canyon School., UTM Z11 37 24 600mN, 4 12 700mE 24 Comment
  UCR150373  Hordeum intercedens D. E. Bramlet 1998-5-20 2622 Orange Coastal Plains & Basins/Coastal Plains region, San Juan Hills: 488 m west of La Pata Ave. and 1.22 km N of Prima Deshecha Canada. A blue-line drainage 457 m east of the old ridgeline road 149 Comment
  UCR158149  Hordeum intercedens Adrian Wolf 1998-5-4 204 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, trail to Dripping Cave, in Woods Canyon 1 km up from confluence with Aliso Canyon, west of Sheep Hills, south of Dripping Cave 134 Comment
  UCR158154  Hordeum intercedens Adrian Wolf 1998-4-21 127 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, Aliso Canyon 0.5 km east of mouth of Woods Canyon, north of access road 55 Comment
  UCR158226  Hordeum intercedens Adrian Wolf 1998-5-4 202 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, Aliso Canyon 0.75 km SW of Woods Canyon, 2.25 km NNW of Aliso Water Treatment Plant, north of access road 30 Comment
  UCR85724  Hordeum marinum Scott D. White 1993-4-28 1282 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  HSC10201  Hordeum murinum subsp. leporinum D. W. Snell 1964-3-22 1 Orange 1/2 mi. S of Imperial Hwy., 1 mi. W of Yorba Linda. Comment
  RSA543972  Hordeum murinum subsp. leporinum Steve Boyd, Orlando Mistretta 1991-5-9 6202 B Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  UCR99555  Hordeum murinum subsp. leporinum B. G. Pitzer 1996-4-30 2799 A Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UCR48545  Hordeum vulgare Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  IRVC17879  Hulsea heterochroma G. Reynolds 1980-7-3 Orange along fire road, west side of Modjeska Peak, near top, Santa Ana Mountains Comment
  UCR186590  Hydrocotyle ranunculoides Robert DeRuff 1996-5-6 493 Orange Southern Coast, Newport Beach, Newport Back Bay, streambed at 23rd St. 3 Comment
  RSA151084  Hydrocotyle verticillata P. H. Raven 1961-10-15 16858 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  CAS-BOT-BC539350  Hypericum canariense R. E. Riefner, Jr. 2010-6-9 10 -56 Orange City of San Juan Capistrano, La Novio Ave. at Valle Rd. 45 Comment
  RSA769302  Hypericum canariense R. E. Riefner Jr. 2010-6-9 10 -52 Orange City of San Juan Capistrano, along McKraken View Trail at San Juan Creek Rd., E of I-5 Freeway. 51 Comment
  UCSB56516  Hypericum canariense Roberts, Fred 1983-5-26 Orange Dana Point Headlands; 0.5km NW Dana Point Harbor; 0.4km S Richard Henry Dana School; on south side of Pacific Coast Highway 22 Comment
  IRVC814  Hypochaeris glabra C. Thompson 1965-4-12 Orange Laguna Hills Comment
  RSA732168  Hypochaeris glabra A. C. Sanders, Fred M. Roberts 2008-3-25 34538 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  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
  UC1543186  Hypochaeris glabra Donald G. Nelson 1935-4-6 234 Orange e San Juan Capistrano; Cleveland National Forest Comment
  UCR190982  Hypochaeris glabra A. C. Sanders, Fred M. Roberts 2008-4-22 34998 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
  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
  UCR151115  Isocoma menziesii Scott D. White 1998-10-15 7184 Orange Santa Ana Mtns foothills, Yorba Linda, c. 0.5 mi south of Telegraph Canyon between Ohio St. and Fairmont 305 Comment
  JEPS19467  Isocoma menziesii var. menziesii Peter H. Raven 1957-9-28 11368 Orange n limits of Surfside Comment
  RSA184129  Isocoma menziesii var. menziesii I. L. Wiggins 1965-10-27 20305 Orange Roadside and along creek bank, just SW of Los Angeles Co. line, on Brea Canyon Rd. Comment
  UCR247911  Isocoma menziesii var. menziesii Fred M. Roberts 2012-9-6 7694 Orange SAN JOAQUIN HILLS: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 km WNW Pelican Hill summit. 37 Comment
  CAS-BOT-BC311671  Isocoma menziesii var. sedoides David D. Keck 1932-9-30 1902 Orange 2 mi. W. of Laguna Beach Comment
  CAS-BOT-BC311675  Isocoma menziesii var. sedoides Helen D. Geis 1902-1-1 545 Orange Laguna Beach Comment
  CAS-BOT-BC311733  Isocoma menziesii var. vernonioides John Thomas Howell 1927-7-17 2789 Orange One mile north of Laguna Beach 30 Comment
  CHSC100702  Isocoma menziesii var. vernonioides R. E. Riefner Jr. 2004-9-18 04 -425 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. UTM 11S 0431519E 3749312N. NAD 83. 105 Comment
  IRVC25168  Isocoma menziesii var. vernonioides Fred M. Roberts, B. Fugle 1986-10-1 3145 Orange Laguna Hills; creek channel along Cabot Rd. ca. 1.0km N Pacific Park Pkwy. Southern Coastal 99 Comment
  POM359491  Isocoma menziesii var. vernonioides F. R. Fosberg 1930-7-10 3197 Orange Anaheim Landing. [Los Angeles Co. on label] 2 Comment
  RSA5239  Isocoma menziesii var. vernonioides C. B. Wolf 1932-9-13 4027 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd. (Triangle waste ground at NW corner of SW 1/4 sect. 30 T4S R11W) 8 Comment
  RSA90  Isolepis cernua J. T. Howell 1927-7-18 434 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA94  Isolepis cernua J. T. Howell 1927-7-6 278 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCSB50641  Isolepis cernua Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills: Tonner Canyon; 1.0 km. by road E jct. 57; 1.1 km. SE Bench Mark 499 165 Comment
  RSA696235  Isomeris arborea L. C. Hull 1934-3-7 s.n. Orange Laguna Hills Comment
  UC72699  Isomeris arborea E. A. Zumbro 1902-1 372 Orange Comment
  RSA5819  Iva axillaris subsp. robustior C. B. Wolf 1932-6-28 3804 Orange Edge of field on Bixby Ave. 750 ft. east of SW corner of NW 1/4 of NW 1/4 of Sect. 33. Comment
  RSA895  Jaumea carnosa J. T. Howell 1927-6-30 245 Orange Bryant Ranch near Long Beach. 15 Comment
  SBBG65763  Jaumea carnosa M. N. Ackley -Sep-1928 1198 Orange Sunset Beach 8 Comment
  PASA1561  Jaumea carnosa Frank W. Peirson 1924-8-29 Orange 3 miles from Balboa on road inland along creek Comment
  RSA588852  Jepsonia parryi Fred M. Roberts Jr. 1989-11-7 4451 Orange Rancho Mission Viejo: TRW Lease Holding, ridge south of the confluence of Gabino and Blind Canyons, 5.0 km NE Clemente Survey Marker 155 Comment
  CAS-BOT-BC101959  Juglans californica Carl B. Wolf 1936-7-8 8103 Orange W. side of Durant St., Santa Ana 30 Comment
  RSA0011068  Juglans californica Carl B. Wolf 1934-9-21 6141 Orange At lower end of Brea Canyon, Puente Hills 183 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
  CAS-BOT-BC414248  Juglans hindsii R. E. Riefner, Jr. 2014-7-10 14 -240 Orange City of Laguna Beach, Laguna Canyon, Sun Valley Dr. along creek near Stan's Ln. 73 Comment
  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
  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
  SD248445  Juglans regia R. E. Riefner Jr. 2011-8-25 11 115 Orange Trabuco Canyon, Trabuco Canyon Road, ca. 1 mile NW of O'Neill Regional Park. 319 Comment
  RSA795706  Juncus W. R. Ferren 1991-12-4 EPA- 18 Orange Cook Creek, tributary to Aliso Creek, San Juan Capistrano. Comment
  UC1280019  Juncus acutus subsp. leopoldii Peter H. Raven 1957-9-28 11401 Orange just n Huntington Beach Comment
  UC917900  Juncus acutus subsp. leopoldii Frank W. Gould 1944-4-30 2330 Orange 2 mi sw Huntington Beach Comment
  RSA703734  Juncus arcticus Fred M. Roberts, David E. Bramlet 2004-11-5 6123 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Cristianitos Cyn., along creek, 0.73km N Sycamore Gate and 0.10 km W Cristianitos Road. 122 Comment
  UCR261700  Juncus balticus Dick Newell, Don Millar 2014-9-30 386 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon Wash, 0.6 mi. south of Loma Ridge Rd. 279 Comment
  UCR158029  Juncus bufonius Adrian Wolf 1998-5-15 292 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCSB48028  Juncus bufonius var. bufonius Roberts, Fred 1980-5-4 Orange Mission Viejo: along Santa Fe Railroad and Camino Capistrano; 1.7km N Crown Valley Parkway; 1.1km S BM 316 14 Comment
  UCSB48092  Juncus bufonius var. congestus Roberts, Fred 1981-4-12 Orange Santa Ana Mtns; San Juan Cyn; Hwy 74; 1.3km by road E San Juan Guard Station; 0.9 km SE Juan Rancho SM 295 Comment
  POM1553  Juncus mexicanus C. B. Bradshaw s.n. Orange Laguna Beach Comment
  UC729648  Juncus mexicanus E. R. Johnson 1932-5-5 Orange Santa Ana River bottom, near ranch house Santa Ana Canyon, Rancho Santa Ana 121 Comment
  SEINET3880695  Juncus patens A. C. Sanders, Mitch Provance 2008-5-20 35399 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 (El Toro 7.5' Q.).; 0 366 Comment
  RSA603360  Juncus rugulosus Scott D. White 1997-6-12 5317 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
  UCSB47990  Juncus rugulosus Roberts, Fred 1980-6-25 Orange Santa Ana Mtns; San Juan Canyon below Calif. Rte. 74; 2.4km ENE San Juan Guard Station; 0.3 km WSW BM 1100 290 Comment
  UC520018  Juncus xiphioides Joseph Andorfer Ewan 1932-7-9 7484 Orange 4 mi below Rincon (Prado); Santa Ana River Comment
  RSA0130691  Juniperus californica S. B. Bryant 1934-1-13 5567 Orange Midway between San Juan Capistrano and San Juan Hot Springs. Comment
  UC1018202  Keckiella antirrhinoides J. Warren 1952-4-5 Orange Santa Ana Canyon Comment
  CAS-BOT-BC235532  Keckiella antirrhinoides var. antirrhinoides A. J. Perkins 1909-6-1 s.n. Orange Orange County Park Comment
  NY786525  Keckiella antirrhinoides var. antirrhinoides D. C. Michener 1980-6-5 3668 Orange Santa Ana Mountains. San Juan river valley, on terrace near abandoned mine(s). Comment
  NY790209  Keckiella cordifolia D. C. Michener 1980-7-14 3704 Orange Santa Ana Mountains. Starr Ranch Audubon Sanctuary. Crow Creek, ca. 1.3 miles north of confluence with Bell Canyon. Comment
  RSA34536  Keckiella cordifolia N. C. Cooper 1944-6-4 1340 Orange San Juan Canyon. 305 Comment
  RSA401705A  Keckiella cordifolia Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  SBBG47452  Keckiella cordifolia N. C. Cooper 1944-6-4 1340 Orange San Juan Cyn 304 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
  POM7128  Koeleria macrantha P. A. Munz, L. T. Street, G. Williams 1919-5-3 2633 Orange Santa Ana River Canyon. 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
  RSA725959  Koelreuteria bipinnata T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive. 6 Comment
  SEINET998786  Koelreuteria bipinnata R. E. Riefner Jr. 2006-1 06 -673 Orange South Coast: Irvine, along San Diego Creek at Campus Ave. (Tustin 7.5' Q.) 4 Comment
  UCR181157  Koelreuteria bipinnata R. E. Riefner Jr. 2006-11-14 06- 673 Orange South Coast, Irvine, along San Diego Creek at Campus Avenue and University Drive 4 Comment
  UCR239644  Koelreuteria bipinnata Fred M. Roberts 2012-5-9 7555 Orange Santa Ana Mountains, Lake Forest, along Serrano Creek hiking trail, 1.0 m south-southwest of intersection of Commercentre and Dimension Drives 171 Comment
  UCD20151  Kyllinga brevifolia Bob Loudy 2002-4-18 Orange Town of Laguna Niguel, in lawn of 28572 Rancho Grande St. Comment
  CAS-BOT-BC111951  Kyllinga brevifolia R. A. Mackessy 1955-7-29 s.n. Orange Anaheim Comment
  CAS-BOT-BC340503  Lactuca serriola Ira L. Wiggins 1965-10-24 20288 Orange At corner of Yorba Linda and State College Blvd., Fullerton Comment
  RSA0027432  Lactuca serriola Fred M. Roberts 2013-7-18 7666 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
  UCR193005  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-6-17 35457 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCR195006  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-8-7 36001 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA699157  Lamarckia aurea Rankin s.n. Orange Newport Beach. 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
  CAS-BOT-BC338908  Lasthenia californica Agnes M. Bowman 1899-6-1 s.n. Orange Orange Comment
  IRVC532  Lasthenia coronaria R. Harbour 1965-4-4 Orange Irvine Coast Country Club. Crystal Cove State Park Comment
  LA203785  Lasthenia glabrata subsp. coulteri C. B. Wolf; 1935-3-24 6295 Orange 1 mi N of Buena Park (Valley to W of W.Coyote Hills) 53 Comment
  RSA92917  Lasthenia gracilis F. W. Peirson 1924-5-31 4667 Orange 5 miles southeast of Laguna Beach. Comment
  SEINET6071273  Lathyrus laetiflorus Unknown 1988-1-12 5117 Orange Cleveland National Forest, San Juan Creek at Lower San Juan Campground. Comment
  SEINET956187  Lathyrus strictus P. C. Everett 1935-1 6292 Orange Santa Ana Mts. Baker Canyon, West Ladd Truck Trail. 1000 Comment
  SEINET956308  Lathyrus vestitus Scott D. White 1997-1 b- 4698 Orange Above Modjeska Canyon. Proposed water tank site. 427 Comment
  UCR220959  Lathyrus vestitus Dick Newell, Don Millar 2010-4-20 016 Orange South Coast Region, top of Serrano Ridge, 1 km west of the Nix Center/Laguna Canyon Rd. 229 Comment
  RSA405728  Lathyrus vestitus subsp. alefeldii H. L. Bauer 1929-4-20 s.n. Orange Trabuco Canon. Comment
  RSA405709  Lathyrus vestitus subsp. laetiflorus E. Crow 1929-2-22 164 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  UCSB12895  Lathyrus vestitus var. alefeldii 1962-3-9 Orange 12.2 miles east of San Juan Capistrano on State 74 243 Comment
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Apr 10 2016
  UCSB28050  Lathyrus vestitus var. vestitus Blakley, E. 1957-4-26 Orange State Rte. #140; 5 miles east of Mission San Juan Capistrano 121 Comment
  JEPS68631  Lavatera assurgentiflora subsp. assurgentiflora Lawrence M. Booth 1932-5-26 1121 Orange Newport Bay Comment
  CAS-BOT-BC527309  Lemna trisulca John Thomas Howell 1927-7-15 2776 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  IRVC24954  Lepechinia cardiophylla Fred M. Roberts, Gordon A. Marsh 1986-6-6 2933 Orange Santa Ana Mountains; ridge S of Mabey Canyon, just N of Skyline Dr. near Orange County line; 2.7km SE Sierra Peak. Peninsular Ranges 820 Comment
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Feb 22 2017
  RSA1076  Lepechinia cardiophylla J. T. Howell 1927-6-26 225 Orange Claymine Canyon, near Sierra Peak 610 Comment
  UC909677  Lepechinia cardiophylla John Thomas Howell 1927-6-26 2606 Orange n Santa Ana Mountains, Claymine Canyon Claymine Canyon; Santa Ana Mountains, Claymine Canyon 609 Comment
  CAS-BOT-BC88683  Lepidium acutidens Carl B. Wolf 1935-3-24 6296 Orange 1 mile north of Buena Par (Valley to west of west Coyote Hils). 53 Comment
  RSA66150  Lepidium lasiocarpum F. W. Peirson 1923-3-25 3363 Orange Aliso Creek near Laguna Beach Comment
  IRVC1099  Lepidium lasiocarpum G. Olander 1965-4-3 Orange Corona del Mar, Begonia and 2nd Ave. Newport Beach Comment
  JEPS53664  Lepidium lasiocarpum var. lasiocarpum L. M. Booth 1932-5-24 1084 Orange Newport Bay Comment
  RSA429969  Lepidium nitidum Albert J. Perkins 1913-3-6 s.n. Orange Near San Juan Hot Springs, Orange County Comment
  RSA731995  Lepidium nitidum A. C. Sanders, L. Farley, F. M. Roberts, D. E. Bramlet 2008-4-1 34648 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  SD27974  Lepidium nitidum Carl B. Wolf 1932-3-8 2683 Orange 1/2 mile north of Corona Del Mar, Borders of Newport Bay 7 Comment
  SEINET7072489  Lepidium nitidum A. G. Vestal 1963-3-27 s.n. Orange About 1.8 miles up Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  UCR191444  Lepidium nitidum A. C. Sanders, Fred M. Roberts 2008-4-8 34726 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR192487  Lepidium nitidum A. C. Sanders, Fred M. Roberts 2008-3-25 34515 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC1108  Lepidium nitidum B. Mawdsley 1965-3-24 Orange Corona del Mar, Narcissus and 5th. Newport Beach Comment
  RSA629716  Lepidium pinnatifidum L. C. Wheeler 1947-5-4 6476 Orange 4 1/2 miles south of Santa Ana: South Main Street extension, 0.8 miles south of Newport Avenue. Comment
  RSA783045  Lepidospartum J. D. Olmsted 1959-8-25 840 Orange Mouth of Black Star Canyon east of Santiago Reservoir 320 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
  POM47583  Leptochloa fusca subsp. uninervia I. M. Johnston 1924-8-29 s.n. Orange 1 mile north of Santa Ana. Comment
  RSA731934  Leptochloa fusca subsp. uninervia Fred M. Roberts, Sandy Leatherman 2007-11-27 6676 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA734967  Leptodactylon californicum A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35302 Orange Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UC527219  Leptodactylon californicum subsp. glandulosum B. D. Stark 1931-3-12 1938 Orange w slope Santa Ana Mts. (3 mi n of Modjeska's Home); w slope of Santa Ana Mts. 304 Comment
  RSA0030890  Leptodactylon californicum subsp. leptotrichomum B. D. Stark 1931-3-12 s.n. Orange West slope of Santa Ana Mts., 3 mi. no. of Modjeska's Home. 304 Comment
  RSA574  Leptosiphon androsaceus J. T. Howell 1928-4-7 905 Orange Botany Garden, Rancho Santa Ana. [original location] Comment
  POM361808  Lessingia glandulifera var. glandulifera George R. Johnstone 1928-9-3 s.n. Orange Keen Camp, San Jacinto Mts. 1341 Comment
  RSA172340  Leymus condensatus R. F. Thorne 1963-7-26 32843 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mountains, Cleveland National Forest 762 Comment
  UC971744  Leymus condensatus L. M. Booth 1932-5-30 1136 Orange Newport Bay Comment
  CDA35061  Ligustrum lucidum Mark A. Elvin, D. Kelch, B. S. Nerhus, P. Iluore 2006-12-9 5327 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  CAS-BOT-BC130579  Lilium humboldtii B. D. Stark 1927-9-6 s.n. Orange Claymine Canyon, Santa Ana Mts. 365 Comment
  RSA698086  Lilium humboldtii J. Vlahos 1934-03 s.n. Orange Black Star Canyon. Comment
  UC1789093  Limonium R. E. Riefner Jr. 2005-9-16 05 -667 Orange Upper Newport Bay, E of Bayside Dr. at Big Canyon Creek. 6 Comment
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Jan 7 2016
  CDA23580  Limonium binervosum A. Thomas, Mark A. Elvin 2006-9-23 609237 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
  RSA0059068  Limonium californicum CNPS Accuracy Assessment Team 2014-7-9 9563 .1 Orange Upper Newport Bay Nature Reserve. Comment
  UCSB36206  Limonium californicum Ferren, Wayne 1980-8-27 Orange Tidal sand bank along channel of Newport Backbay below W side of Backbay Drive ca. 1.5 km NE of Rt. 1, Newport Beach Comment
  POM201925  Limonium californicum var. mexicanum L. M. Booth 1932-6-29 1229 Orange Newport Bay. Comment
  RSA723491  Limonium duriusculum R. E. Riefner 2005-10-5 5 -707 Orange City of Irvine, Bonita Creek, along La Salud St. near Milano Dr. 9 Comment
  RSA469962  Linanthus aureus Shaw 1923-03 s.n. Orange Near Irvine 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
  LA103892  Linanthus californicus E. B. Higgins; 1948-3-21 sn Orange San Juan Camp Comment
  RSA584716  Linanthus californicus subsp. glandulosus Fred M. Roberts 1989-5-18 4370 Orange Santa Ana Mountains: Upper Gypsum canyon, above ridge road, ca. 6.4 km WSW Sierra Peak. 415 Comment
  RSA652612  Linanthus californicus subsp. glandulosus Shlomo Gat 1959-5-12 49 Orange Hills in Orange county. Comment
  RSA698395  Linanthus dianthiflorus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  UCSB31294  Linanthus dianthiflorus Higley, L. 1978-3-5 Orange 2mi north of Crown Valley Rd., 1 mi east of Pacific Cst. Hwy. in Corona Del Mar 60 Comment
  RSA3169  Linanthus dianthiflorus subsp. dianthiflorus C. B. Wolf 1932-3-8 2694 Orange Santiago Dam, W. base Santa Ana Mts. 305 Comment
  CHSC116475  Linanthus floribundus subsp. floribundus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49714 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail. Comment
  JEPS33699  Linanthus liniflorus John Thomas Howell 1927-6-8 2458 Orange Santa Ana Canyon 182 Comment
  UC908693  Linanthus liniflorus J. T. Howell 1927-6-8 2458 Orange Rancho Santa Ana Rancho Santa Canyon 182 Comment
  RSA0054843  Linaria canadensis Keith E. Hoffmaster 1927-4-2 304 a,b,c,d Orange Santa Ana Mts. San Onofre. Comment
  UC1419618  Linaria maroccana J. McNeill 1969-4-10 3034 Orange Newport, Eastbluffs, Irvine Arboretum Irvine Arboretum; Upper Newport Bay, Newport, Eastbluffs, Irvine Arboretum 15 Comment
  UCR186427  Linum grandiflorum Robert DeRuff 1994-5-16 469 Orange Southern Coast, Newport Beach, Newport Back Bay, south of 23rd St., below a row of houses 5 Comment
  UCR51660  Linum lewisii R. Ascanio 1988-5-25 s.n. Orange Hwy 74 c. 5 mi east of San Juan Capistrano Comment
  CAS-BOT-BC432274  Lithophragma affine Frank W. Peirson 1925-4-11 5734 Orange Silverado Canyon, Santa Ana Mts. 609 Comment
  CAS-BOT-BC432275  Lithophragma affine Alice Eastwood; John Thomas Howell 1937-4-24 3927 Orange 2 miles E of San Juan Hot Springs Comment
  UC1618102 Image available Lithophragma cymbalaria Donald G. Nelson 1935-7-6 252 Orange San Juan Canyon. North bend of canyon stream Comment
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Apr 11 2009
  RSA749678  Lobelia dunnii var. serrata A. C. Sanders, Fred M. Roberts 2008-7-16 35837 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  HSC6864  Lobularia maritima J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  UCR217465  Lobularia maritima Mark A. Elvin 2003-2-23 2313 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UCSB47977  Lobularia maritima Roberts, Jr., Fred 1980-2-17 Orange Bluffs west of Dana Marina along Dana Strand road, Dana Point 56 Comment
  RSA651352  Lobularia maritima R. Spence 1974-8-13 s.n. Orange Upper Newport Bay. Comment
  SEINET192714 Image available Lolium perenne C. B. Wolf 1932-6-13 Orange Fullerton Rose Drive 53 Comment
  UC729941  Lolium perenne Carl B. Wolf 1932-6-13 3728 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  RSA0011624  Lolium perenne subsp. multiflorum Rankin s.n. Orange Irvine Park. 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
  RSA6130  Lolium perenne subsp. multiflorum C. B. Wolf 1932-6-13 3728 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  RSA0105951  Lomatium lucidum Alan Romspert 1998-5-9 s.n. Orange Gypsum Cyn, Fremont Cyn by road, Santa Ana Mountains. Comment
  RSA0119677  Lonicera japonica Fred M. Roberts 2015-4-16 7940 Orange Newport Beach: Big Canyon, north side, vicinity of Big Canyon Trail, 0.5 km W Corona Del Mar High School. 2 Comment
  RSA753969  Lonicera subspicata A. C. Sanders, Fred M. Roberts 2008-7-16 35858 Orange Lomas de Santiago, upper Hangmans Tree Canyon. 395 Comment
  UCSC001314  Lonicera subspicata Peter Kamb 1948-6-19 1104 Orange Holy Jim Canyon, Santa Ana Mts. 610 Comment
  UC284253  Lonicera subspicata var. denudata P. A. Munz 1923-1-14 7052 Orange Glen Ivy Trail to Santiago Peak; Santa Ana Mts. 1066 Comment
  RSA697961  Lotus americanus Minor Warne 1934-5-19 s.n. Orange Live oak Canyon. Comment
  RSA797909  Lotus crassifolius Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49819 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA542544  Lotus hamatus Fred M. Roberts 1988-4-10 3914 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  RSA0006681  Lotus hamatus J. T. Howell 1927-6-8 56 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  POM186867  Lotus heermannii Joseph A. Ewan 1929-6-28 3621 Orange Santiago Canyon, Santa Ana Mts. 366 Comment
  RSA2591  Lotus heermannii J. T. Howell 1928-7-10 1092 Orange Trabucco Canyon, Santa Ana Mts. 518 Comment
  IRVC15129  Lotus heermannii var. heermannii A. S. Boughey 1968-7-9 383 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  POM50645  Lotus micranthus L. R. Abrams 1901-06 1825 Orange Santiago Peak Trail 915 Comment
  SEINET7067521  Lotus purshianus A. G. Vestal 1947-6-12 s.n. Orange Canyon Road to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 444428mE, 3723792mN. Comment
  SEINET3562996 Image available Lotus salsuginosus Lawrence M. Booth 1932-5-19 1073 Orange Newport Bay Comment
  UCR191238  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-4-22 34988 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  IRVC2243  Lotus scoparius subsp. scoparius S. Holloway 1965-4-1 Orange Corona del Mar. Newport Beach Comment
  RSA734684  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-5-6 35219 Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR154288  Lotus scoparius var. scoparius Mark A. Elvin 2004-5-2 3406 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA391  Lotus strigosus J. T. Howell 1928-2-25 842 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA649262  Lotus strigosus T. Pringle 1966-3-22 68 Orange In Silverado Canyon Comment
  UCR103215  Lotus strigosus Scott D. White 1997-2-19 4694 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA681021  Lotus strigosus var. strigosus Fred M. Roberts, David E. Bramlet 2003-3-13 5585 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 207 Comment
  UC1608265  Lotus wrangelianus Steve Boyd and Tim Ross 1992-5-20 7485 Orange Lucas Canyon at the Lucas Canyon Trail crossing, just downstream from crossing, w edge of the San Mateo Canyon Wilderness Area Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 320 Comment
  UCR194560  Lupinus andersonii A. C. Sanders, Fred M. Roberts 2008-4-8 34763 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UCR101530  Lupinus bicolor B. G. Pitzer 1997-4-15 3147 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
  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
  IRVC24501  Lupinus bicolor subsp. umbellatus Fred M. Roberts, Gordon Marsh 1986-2-28 2623 Orange Mission Viejo: N of Oso Parkway; 4.2km NNE Saddleback Community College. Southern Coastal 200 Comment
  IRVC21215  Lupinus bicolor subsp. umbellatus Fred M. Roberts 1984-3-9 1241 Orange Wagon Wheel Regional Park: 2.6km NE Median Rancho Survey Mark, Santa Ana Mountains 210 Comment
  IRVC24765  Lupinus bicolor subsp. umbellatus Fred M. Roberts 1986-4-24 2790 Orange Rancho Mission Viejo: Canyon east of Trampas Canyon, S of Hwy 74, 2.5km E Viejo Survey Mark. Santa Ana Mountains 113 Comment
  SEINET10452686  Lupinus excubitus subsp. hallii Stark 1933-2-3 STARK 19497 Orange Garden #6455 (from 1780 many generations). Comment
  IRVC17057  Lupinus excubitus var. hallii A. S. Boughey 1969-5-3 430 Orange Black Star Canyon on seaward side near crest. Santa Ana Mountains Comment
  RSA28730  Lupinus excubitus var. hallii R. S. Woglum 1938-5-8 1619 Orange Ortega Hwy, Santa Ana Mts Comment
  RSA3236  Lupinus excubitus var. hallii Carl B. Wolf 1931-5-20 2056 Orange Along Santa Fe R. R. 1 mile west of Esperanza 107 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
  IRVC2326  Lupinus hirsutissimus Kathy Durica 1965-4-25 s.n. Orange Silverado Canyon Santa Ana Mountains Comment
  RSA409  Lupinus hirsutissimus J. T. Howell 1928-2-25 847 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA413701  Lupinus hirsutissimus M. B. Dunkle 1933-3-5 3081 Orange San Juan Canyon. Comment
  UCR97820  Lupinus hirsutissimus Scott D. White 1997-3-28 4837 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  POM2601  Lupinus longifolius Philip A. Munz 1918-5-4 2201 Orange Laguna Beach. Comment
  RSA647937  Lupinus longifolius Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 55 Orange 1000 ft. north of Chino Hills State Park Boundary 229 Comment
  RSA749636  Lupinus longifolius D. E. Bramlet, Fred M. Roberts 2008-4-4 4173 Orange Loma Ridge, beside existing dirt access rd. 1.16km west of Hicks Haul Rd. and 1.6 km SW of Santiago Cyn Rd. 369 Comment
  UC201985  Lupinus longifolius D. L. Crawford 1916-5-10 735 Orange Laguna Canyon; Southern California 152 Comment
  RSA682918  Lupinus microcarpus Scott D. White, Amanda Duchardt 2003-5-1 9152 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  UCR177285  Lupinus microcarpus Scott D. White, Amanda Duchardt 2003-5-1 9152 Orange Santa Ana Mountains, Slopes above the west side of Canada Gobernadora and adjacent small canyon to the west 122 Comment
  HSC14924  Lupinus polycarpus C. L. Hitchcock 1966-3-15 Orange 1/2 mi. E of Brea Comment
  RSA722341  Lupinus sparsiflorus Unspecified s.n. Orange Orange County park Comment
  UC1129703  Lupinus sparsiflorus A. Lewis 1934-3-1 361 Orange Silverado Canyon; Cleveland National Forest, Corona Quad., Silverado Canyon Comment
  UC1543241  Lupinus sparsiflorus Donald G. Nelson 1935-4-14 285 Orange edge of dry mesa facing Newport Bay Newport Beach (and the ocean, Newport Beach); mesa facing Newport Bay, Newport Beach Comment
  IRVC16566  Lupinus sparsiflorus subsp. sparsiflorus Gordon A. Marsh, Karlin G. Marsh 1978-5-2 s.n. Orange Santa Ana Mountains; Silverado Truck Trail. Peninsular Ranges 884 Comment
  POM156682  Lupinus sparsiflorus subsp. sparsiflorus L. R. Abrams 1903-4-19 3277 Orange San Juan Comment
  RSA542384  Lupinus sparsiflorus subsp. sparsiflorus Fred M. Roberts 1988-3-15 3850 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  RSA113262  Lupinus sparsiflorus subsp. sparsiflorus E. K. Balls 1955-4-4 20426 Orange San Juan Creek along Hwy 74, San Juan Capistrano to Elsinore. 46 Comment
  IRVC2343  Lupinus succulentus Tony Price 1965-4-17 HS 0414 Orange Black Star Canyon. Santa Ana Mountains Comment
  RSA734341  Lupinus succulentus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34634 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  UCR106270  Lupinus succulentus B. G. Pitzer, M. Georgiady 1997-4-5 3065 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  UCR209374  Lupinus succulentus Fred M. Roberts 2008-3-25 6792 Orange Loma Ridge, Upper Hicks Canyon near Haul Road, c. 4.4 km by road from Portola Parkway, and 3.2 km east northeast Rattlesnake Canyon Reservoir 269 Comment
  RSA732078  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
  SBBG47485  Lupinus truncatus M. B. Dunkle 1935-3-3 4346 Orange San Juan Cyn 457 Comment
  UCR98251  Lupinus truncatus Scott D. White 1997-3-28 4851 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  IRVC8858  Lupinus truncatus Charles W. Sexton 1964-4-23 s.n. Orange Newport Beach. Southern Coastal Comment
  SD255176  Lupinus truncatus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49803 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UCR250330  Lycium brevipes R. E. Riefner Jr. 2012-6-22 12- 273 Orange city of Newport Beach, Corona del Mar, Little Corona Beach, vicinity of Poppy Ave. and Ocean Blvd. 4 Comment
  CAS-BOT-BC383072  Lycium brevipes var. hassei R. E. Riefner, Jr. 2014-4-12 14 -77 Orange City of San Clemente, San Clemente State Beach, SSW ca. 100 m from the intersection of Ave. Calafia and South Ola Vista Rd. 40 Comment
  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
  RSA357139  Lycium californicum Robert F. Thorne 1975-4-6 45576 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  UCR222626  Lycium californicum T. B. Salvato 2010-10-27 5101 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  RSA700255  Lycopersicon esculentum Fred M. Roberts 2003-7-8 5959 Orange Coastal Plains and Basins; Los Angeles Basin region; Orange Park Acres, along Santiago Creek, 0.5 km E Cannon Road and 0.3 km n Santiago Canyon Road. 117 Comment
  JEPS63273  Lycopus americanus John Thomas Howell 1927-9-24 3120 Orange Rancho Santa Ana R. bottom Rancho Santa Ana; Rancho Santa Ana R., Rancho Santa Ana 152 Comment
  OBI33516  Lysimachia arvensis Nancy J. Moriarty 1973-5-27 730527 -3 Orange San Clemente State Beach 1 mi S of the end of Ave Califia in the sand below the bluffs Comment
  RSA0014852  Lythrum californicum L. M. Booth 1932-6-4 1147 Orange Newport Lagoon. Comment
  UCR188948  Macadamia integrifolia Robert DeRuff 2007-11-24 s.n. Orange Newport Beach, Upper Newport Bay, Back Bay Drive, lower bluff between 23rd Street and Mariners Drive 5 Comment
  CAS-BOT-BC334724  Madia gracilis John Thomas Howell 1927-6-26 2613 Orange Claymine Canyon, north Santa Ana Mountains 243 Comment
  RSA797823  Madia gracilis R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49812 Orange Santa Ana Mountains: Trabuco Canyon Comment
  CAS-BOT-BC206252  Malacothamnus fasciculatus C. B. Wolf 1931-7-25 1166 Orange Along the road at north side of the Pear Orchard, Rancho Santa Ana, Santa Ana Can. 121 Comment
  CAS-BOT-BC206260  Malacothamnus fasciculatus John Thomas Howell 1927-6-20 2557 Orange North side of Santa Ana Canyon 243 Comment
  OBI12364  Malacothamnus fasciculatus Louis C. Wheeler 1932-7-9 941 Orange Santa Ana River, 5 mi below Prado 152 Comment
  POM124505  Malacothamnus fasciculatus L. R. Abrams 1918-5-26 s.n. Orange Near Laguna Beach Comment
  POM257048  Malacothamnus fasciculatus W. Pequegnat 1940-5-26 s.n. Orange Black Star Canyon, on Skyline Drive, Santa Ana Mts. 610 Comment
  RSA564300  Malacothamnus fasciculatus Scott D. White 1992-9-29 851 Orange Vicinity of City of Brea, immediately N of Carbon Canyon Road and E of Placentia Avenue, +/- 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  UCR44901  Malacothamnus fasciculatus B. G. Pitzer, L, L. F. LaPre 1986-10-20 0322 Orange Trabuco Road at intersection with Sand Canyon Avenue, NW of El Toro Marine Air Station 79 Comment
  UC468866  Malacothrix saxatilis var. tenuifolia D. L. Crawford 740 Orange Aliso Canyon Laguna Beach Region Comment
  UC582778  Malacothrix saxatilis var. tenuifolia P. A. Munz 1936-6-20 14177 Orange road at La Vida Springs Carbon Canyon Comment
  RSA94955  Malacothrix saxatilis var. tenuifolia F. W. Peirson 1919-11-8 1482 Orange Aliso Creek. 0 Comment
  RSA702984  Malosma laurina D. E. Bramlet 2004-5-27 3594 Orange Donna O Neill Reserve. Southwest corner of the reserve, just east of the Telaga development. The site is 1.43km west of Cristianitos Rd. and 1.37km north of Pico. 183 Comment
  RSA732087  Malva parviflora A. C. Sanders, Fred M. Roberts 2008-3-25 34534 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA649333  Malva parviflora C. J. Parenti 1971-3-7 D 15 Orange Collected in empty lot between West and Walnut Streets. About 1000 ft. from the Disneyland Hotel. 30 Comment
  RSA650629  Malva parviflora Daniel Truong 1991-5-13 20 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  RSA17130  Malva pseudolavatera Carl B. Wolf 1936-5-1 7782 Orange Rancho Santa Ana, Santa Ana Canyon, along irrigation canal werst of ranch buildings 130 Comment
  RSA716091  Malvaviscus arboreus Fred M. Roberts 2006-7-27 6394 Orange San Joaquin Hills: Laguna Beach, Temple Hill, 731 Nyes Place, 1.0km NNE Golf Island. 174 Comment
  RSA0093741  Malvella leprosa Fred M. Roberts 2014-4-21 7849 Orange South Coast. SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin. 113 Comment
  RSA666105  Malvella leprosa Fred M. Roberts, Michelle Lee 2001-6-18 5494 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 226 Comment
  UCR158159  Malvella leprosa Adrian Wolf 1998-5-27 332 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
  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
  RSA734010  Marah macrocarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34619 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  UCR223414  Marah macrocarpa Dick Newell, Don Millar 2011-2-15 063 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  HSC14229  Marrubium vulgare C. L. Hitchcock, C. V. Muhlick 1964-3-17 23073 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  RSA749354  Marrubium vulgare Fred M. Roberts 2008-4-15 6903 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn., east ridge, Conservation Trail, 1.6 km ESE Rattlesnake Reservoir dam and 2.7 km WSW Bee Peak, Irvine Ranch Conservancy. 172 Comment
  RSA232219  Marrubium vulgare James Henrickson 1970-8-15 5285 Orange 3 miles NW of Huntington Beach, north of Bolsa Bay, 3/4 mile SE of Warner Ave. Comment
  UCSB39765  Marrubium vulgare Levine, N. 1977-5-1 Orange 0.25 miles west on Rosecrans Blvd. from junction of Rosecrans and Beach Blvd, Buena Park 91 Comment
  CAS-BOT-BC67806  Marsilea vestita Arthur Haupt 1935-4-12 s.n. Orange Costa Mesa Comment
  CAS-BOT-BC67807  Marsilea vestita Arthur Haupt 1935-4-12 s.n. Orange Costa Mesa 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
  RSA799622  Marsilea vestita Justin M. Wood 2011-4-12 3656 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  POM901  Marsilea vestita D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  UCR191468  Matricaria matricarioides A. C. Sanders, Fred M. Roberts 2008-4-8 34733 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR192482  Matricaria matricarioides A. C. Sanders, Fred M. Roberts 2008-3-25 34514 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA923  Matricaria matricarioides J. T. Howell 1928-2-7 822 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  CAS-BOT-BC422724  Meconella denticulata Helen D. Geis 1904-5-1 716 Orange Silverado Canon [Canyon], Santa Ana Mts. Comment
  RSA771517  Meconella oregana var. denticulata Keith E. Hoffmaster 1934-4-22 181 Orange Santa Ana Mountains Comment
  RSA697983  Medicago hispida Marjorie Smith s.n. Orange Santa Ana High school grounds. Comment
  IRVC2371  Medicago polymorpha D. Van Gorden 1965-5-2 s.n. Orange Anaheim and Meyer Field. Costa Mesa Comment
  IRVC2374  Medicago polymorpha D. Van Gorden 1965-5-9 s.n. Orange Silverado Canyon. Santa Ana Mountains; Comment
  UCR191419  Medicago polymorpha A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34657 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  RSA709724  Medicago polymorpha J. B. Anderson 1966-4-16 581 Orange Corona Del Mar: Buck Gully - Little Corona Beach. 0 Comment
  UCSB48053  Medicago polymorpha Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N Dana Hills High School; 1.9 km. W Marco Forster Junior High School 100 Comment
  IRVC2390  Medicago sativa Laura Burns 1965-4-20 Orange Trabuco Canyon. Santa Ana Mountains Comment
  CAS-BOT-BC354338  Medicago truncatula R. E. Riefner, Jr. 2010-6-11 10 -62 Orange City of Fountain Valley, Southpark Ave. at Euclid St. 9 Comment
  RSA746475  Medicago truncatula R. E. Riefner Jr. 2008-5-19 08 -92 Orange City of San Juan Capistrano, general vicinity of Antonio Pkwy. at Hwy 74 (Ortega Hwy). 88 Comment
  UCR186422  Melaleuca elliptica Robert DeRuff 2001-4-11 526 Orange Southern Coast, Newport Beach, Newport Back Bay, Shellmaker Island 1 Comment
  RSA403492  Melica imperfecta Thekla Mohr 3219 Orange Laguna. Comment
  UCR100307  Melica imperfecta B. G. Pitzer 1997-4-15 3141 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
  UCR209370  Melica imperfecta Fred M. Roberts, Linda Farley 2008-3-28 6821 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  POM50513  Melica imperfecta var. flexuosa Le Roy Abrams 1901-06 1689 Orange San Joaquin Hills 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
  UCR100459  Melilotus albus B. G. Pitzer 1996-4-30 2766 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA652168  Melilotus albus Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange. 60 Comment
  CDA25989  Melilotus indicus Mark A. Elvin 2004-5-2 3410 Orange Southern Coastal; Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7km (air) NNW UC Irvine campus center Comment
  HSC15017  Melilotus indicus T. L. Ackerman 1964-3-28 12 Orange On Irvine Park Dr. inside Irvine Park Comment
  IRVC22485  Melilotus indicus Fred M. Roberts 1985-4-24 1651 Orange Laguna Beach: Laguna Canyon along Laguna Canyon Rd., 0.8km N jct. El Toro Rd. Southern Coastal 78 Comment
  IRVC2418  Melilotus indicus Bruce Reynolds 1965-4-20 s.n. Orange Newport Beach; Balboa Island, 115 Amethyst Ave. Southern Coastal Comment
  IRVC2420  Melilotus indicus C. Hinesly 1965-2-13 s.n. Orange Costa Mesa; 257 Santa Isabel. Southern Coastal Comment
  IRVC2427  Melilotus indicus C. Hooven 1965-4-17 s.n. Orange Santa Ana Heights; Spruce Ave. and Palisades. Southern Coastal Comment
  IRVC2431  Melilotus indicus C. Weir 1965-4-17 s.n. Orange Newport Beach; Balboa Island. Southern Coastal Comment
  UCR191454  Melilotus indicus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34636 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
  RSA184136  Melilotus indicus I. L. Wiggins 1966-3-18 20530 Orange California State College at Fullerton. Comment
  UCSB48206  Melilotus indicus Roberts, Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.7 km. N Crown Valley Parkway 49 Comment
  RSA0031757  Mentha citrata Robert F. Thorne 1977-11-21 50817 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. Comment
  IRVC27725  Mesembryanthemum crystallinum Mark A. Elvin 2004-5-2 3429 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  POM201709  Mesembryanthemum crystallinum L. M. Booth 1932-6-29 1224 Orange Newport Bay. Comment
  RSA302143  Mesembryanthemum crystallinum J. R. Shevock 1972-2-18 1339 Orange Bluffs, Newport back bay. 9 Comment
  LA202818  Mesembryanthemum nodiflorum LeRoy Abrams; 1903-4-20 3280 Orange near San Juan Comment
  UCR100444  Mesembryanthemum nodiflorum B. G. Pitzer 1996-4-30 2775 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA18532  Mesembryanthemum nodiflorum C. B. Wolf 1927-7-23 665 Orange Along the coast just north of San Clemente. Comment
  RSA580940  Microseris douglasii subsp. platycarpha D. E. Bramlet 1994-4-30 2375 Orange At the base of the San Joaquin Hills and E of the Quail Hill area. Open flatlands 152m NW of the end of San Canyon Ave. and some 396m S of the San Diego Freeway. 42 Comment
  RSA608535  Microseris douglasii subsp. platycarpha D. E. Bramlet 1993-3-27 2297 Orange University of California, Irvine Campus, adjacent to the UCI Ecological Reserve. The site is 150 ft. SW of the end of Los Trancos Dr. & 250 ft. E of the reserve entrance. 61 Comment
  RSA642507  Microseris douglasii subsp. platycarpha D. E. Bramlet 1998-4-23 2608 Orange Chino Hills. Within the old Edison spur road, 20m east of the 500Kv towers. The site is 1.98km south of Telegraph Cyn. and 823m north of Blue Mud Cyn. 412 Comment
  RSA799939  Microseris douglasii subsp. platycarpha Justin M. Wood 2011-4-12 3650 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  UCR208155  Microseris douglasii subsp. platycarpha Fred M. Roberts, D. E. Bramlet 2003-3-27 5621 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.79km N Sycamore Gate, 0.23km W Cristianitos Rd. 126 Comment
  UCR98773  Microseris douglasii subsp. platycarpha D. E. Bramlet 1995-4-29 2404 Orange Fairview Park, Costa Mesa. 366m north of intersection of Wilson and Canyon drive and 152 m west of the Canyon School 43 Comment
  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
  RSA709325  Mimulus aurantiacus Robin Marushia 2004-4-16 1 Orange Southern Coast: El Moro Canyon, Crystal Cove State Park, Laguna Beach; grassy ridge southwest of No Name Ridge road in park, downhill from pullout and below closed road to park entrance. 61 Comment
  UCD122219  Mimulus aurantiacus Steve Mason; Pam Rector 1993-4-16 1 Orange Laguna Niguel, Sea View Park Trail, end of trail behind blue rails and Ceanothus sp. Coastal sage scrub on bluff near housing development overlooking canyon and coastline. 182 Comment
  RSA0058060  Mimulus aurantiacus subsp. australis Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49674 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  POM311164  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -F&G Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. Comment
  RSA448178  Mimulus aurantiacus var. pubescens M. B. Dunkle 1933-5-30 3564 Orange Carbon Canyon Comment
  UCSB48356  Mimulus aurantiacus var. pubescens Roberts, Fred 1982-4-18 Orange Santa Ana Mtns; San Juan Canyon; Hwy 74; 0.6km SW Lower San Juan Picnic Ground; 1.9km WNW Sitton Peak 420 Comment
  RSA503159  Mimulus aurantiacus var. puniceus Gary D. Wallace, G. Cromwell 1966-4-16 455 Orange W edge of Cleveland Nat. For. about 5 mi. E of San Juan Capistrano, in the Santa Ana Mountains, in Hot Springs Canyon. Comment
  RSA790707  Mimulus brevipes R. H. McArthur 1934-4-28 16 Orange Trabuco and Ladd Canyons. PR8. Comment
  RSA0054841  Mimulus brevipes Keith E. Hoffmaster 1934-4-8 150 Orange Santa Ana mts. Comment
  RSA550817  Mimulus clevelandii David M. Thompson 1992-5-16 1065 Orange Santa Ana Mts. 3.9 mi N and W of Hwy 74 along USFS Road 3S04 (the N Divide Road). 1006 Comment
  UCR193504  Mimulus floribundus A. C. Sanders, T. B. Salvato 2008-5-13 35335 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
  UCSB69276  Mimulus floribundus Sanders, A.; Salvato, T. 2008-5-13 Orange Peninsular Range; Santa Ana Mtns; Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn; c. 1/2 mile below Modjeska Canyon confluence; in Hangman Tree and in open sand along Santiago Cr. wash 366 Comment
  RSA447957  Mimulus guttatus M. B. Dunkle 1934-6-18 3948 Orange San Juan Canyon. 305 Comment
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Jun 14 2012
  RSA769079  Mimulus guttatus Minor Warne 1934-04 s.n. Orange Laguna Hills Comment
  UCR220305  Mirabilis laevis Dick Newell, Don Millar, Jutta Burger 2010-3-16 011 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon Wash 250 m north of Hwy 241 toll road 201 Comment
  UC774836  Mirabilis linearis E. Paddock 1942-8-12 11295 Orange stern Ranch, John Manassero Lease Yorba Linda Comment
  CDA3375  Mollugo verticillata G. D. Barbe 1973-8-9 1695 a Orange Bordier s Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). 0 Comment
  POM1190  Monanthochloe littoralis D. L. Crawford 1928-07 s.n. Orange Abalon Pt. Comment
  SD119375  Monardella breweri subsp. lanceolata Reid Moran 1977-6-13 24236 Orange Willow Canyon, tributary of Laguna Canyon. 124 Comment
  PASA1142  Monardella hypoleuca Frank W. Peirson 1923-9-7 Orange Santiago Peak 1066 Comment
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Jan 7 2018
  IRVC25321  Monardella hypoleuca Karlin G. Marsh, G. A. Marsh 1989-6-25 s.n. Orange Central Santiago Canyon, south slope, along old mine trail just below Santiago Truck Trail, 2.7km SSW Laurel Springs. Santa Ana Mountains 748 Comment
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Aug 13 2012
  RSA0005450  Monardella hypoleuca Steve Boyd 1994-9-14 8352 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucus Canyon Trail crossing. 305 Comment
  RSA759531  Monardella hypoleuca Robt. Allen, D. Taylor 2008-7-19 s.n. Orange Along North Main Divide Road, 0.2 road miles S of junction with Bedford Rd, 3.5 road miles N of junction with Maple Springs Road, 0.84 air miles WNW of Bald Peak. Labeled on USGS Topo map as Water Tank, near BM 3702. 1142 Comment
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Aug 13 2012
  IRVC24949  Monardella hypoleuca subsp. hypoleuca Fred M. Roberts, Gordon A. Marsh 1986-6-6 2939 Orange Black Star Canyon, Black Star Canyon Rd., 6.6km SSW Sierra Peak. Santa Ana Mountains 460 Comment
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Aug 13 2012
  IRVC25103  Monardella hypoleuca subsp. hypoleuca Fred M. Roberts, Gordon A. Marsh 1986-8-27 3115 Orange Modjeska Peak; Main Divide Truck Trail; SW ridge; 1.0km SW summit Santa Ana Mountains 1530 Comment
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Aug 13 2012
  RSA795173  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31613 Orange near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak 998 Comment
  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
  RSA131404  Monardella lanceolata var. lanceolata E. K. Balls 1958-6-27 23285 Orange Santa Ana Mountains: 8 miles SE of Silverado (Gate), Silverado canyon. 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
  UC150049  Monolepis nuttalliana LeRoy Abrams 1903-4-18 3267 Orange Trabuco Arroyo near Capistrano; Trabuco Arroy Comment
  RSA0010789  Morus Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6060 Orange Santa Ana Mtns.: Holy Jim Cyn.: Holy Jim Trail, 3.3km SE summit of Santiago Peak. 628 Comment
  POM265765  Muhlenbergia microsperma J. C. Roos 2081 Orange East of San Juan Capistrano Comment
  RSA752038  Muhlenbergia microsperma Fred M. Roberts 2008-3-27 6811 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 1, 0.5km W Marine Institute (Dana Point Harbor). 45 Comment
  RSA758011  Muhlenbergia microsperma D. E. Bramlet, Jim Harrison 2008-4-3 4157 A Orange South Bee Cyn. Bowerman landfill site, 1.2km south of Bee Cyn access road, & 122n west of the active landfill. Comment
  UCR191459  Muhlenbergia microsperma A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34653 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
  RSA0028023  Muhlenbergia rigens Fred M. Roberts 2012-9-6 7696 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  UCR192222  Muhlenbergia rigens A. C. Sanders, Fred M. Roberts 2008-5-6 35273 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 379 Comment
  UC814338  Najas guadalupensis P. A. Munz 1922-9-2 6347 Orange Laguna Lake 45 Comment
  CAS-BOT-BC219358  Nama stenocarpa Munz; Street; Williams 1919-5-4 2681 Orange Laguna Beach Region. Laguna Canon [Canyon] Comment
  UC1607973  Nama stenocarpa Donald G. Nelson 1936-7-26 441 Orange on the mesa n of Newport Beach Costa Mesa (Costa Mesa) Comment
  CAS-BOT-BC259968  Nassella lepida Carl B. Wolf 1932-3-8 2682 Orange 0.5 mile N of Corona Del Mar, Borders of Newport Bay 7 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
  UCSB52948  Nassella lepida Roberts, Fred 1983-3-16 Orange Laguna Beach; Sycamore Hills, central ridge, 1.4 km NNE jct. El Toro and Laguna Canyon Rds. 5.4km ESE Signal Peak 177 Comment
  RSA184108  Nassella pulchra I. L. Wiggins 1966-3-16 20527 Orange Entrance to Firestone Boy Scout Reservation. Comment
  RSA602779  Nassella pulchra R. E. Riefner Jr., Tony Bomkamp, R. Ramirez 1997-6-11 97 -181 Orange Black Star Canyon, Hidden Ranch. 610 Comment
  RSA747596  Nassella pulchra Fred M. Roberts 2000-5-19 5329 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  UCD87664  Nassella pulchra F. M. Reed 1927-3-19 5474 Orange Laguna Beach. At Arch Beach. 15 Comment
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Nov 4 2017
  RSA0028025  Nasturtium officinale Fred M. Roberts 2012-9-6 7698 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  RSA431564  Nasturtium officinale H. L. Bauer 1929-5-7 s.n. Orange Santa Ana Canyon. Comment
  RSA703388  Nasturtium officinale R. E. Riefner Jr. 2003-11-30 3 -483 Orange Peters Canyon Channel at Alton St., E of Jamboree Rd. near Irvine City Hall. 22 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
  RSA756067  Nemacaulis denudata var. denudata O. F. Clarke 2004-7-19 s.n. Orange Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  UC536919  Nemacaulis denudata var. denudata Lawrence M. Booth 1932-5-27 1132 Orange Newport Beach Comment
  SEINET10939173  Nemacladus ramosissimus Philip A. Munz 1923-9-7 Munz 7769 Orange Santa Anna Mountains, on slopes along trail from Holy Jim Canyon to Santiago Peak 1128 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
  UCR177440  Nemophila menziesii Scott D. White, Amanda Duchardt 2003-3-27 8865 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  SEINET3479039  Nemophila menziesii W. P. Vestal, A. G. Vestal 1955-3-24 Orange El Toro, El Toro, about 5 miles east Comment
  JEPS1893  Nemophila menziesii var. integrifolia Alice King April, 1908 Orange Santa Ana Mountains Comment
  RSA12926  Nemophila menziesii var. integrifolia Carl B. Wolf 1935-4-7 6316 Orange San Juan Canyon, Ortega Hwy, 2 miles east Orange County. 762 Comment
  RSA588783  Nemophila menziesii var. integrifolia Fred M. Roberts, Nicole Orlik 1990-4-11 4715 Orange Santa Ana Mountains: East Fork Upper Long Canyon, along Main Divide Truck Trail, 4.4 kilometers SE Los Pinos Peak. 750 Comment
  UCSC000895  Nemophila menziesii var. integrifolia Don Keenan 1968-3-24 s.n. Orange damp rocky base of slide in canyon bottom Santa Ana Mts., Holy Jim Canyon Comment
  RSA0060643  Nephrolepis cordifolia Richard E. Riefner 2014-2-24 14 -64 Orange City of Dana Point, W ca. 0.1 mi from Island Way, Dana Point Harbor Dr., cliff slope immediately S of Santa Clara Ave. and Amber Lantern St. 3 Comment
  RSA708532  Nerium oleander Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6107 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  RSA741478  Nerium oleander R. E. Riefner 2008-5-30 8 -124 Orange Near City of Orange, Santiago Creek, vicinity of Jackson Ranch Rd. , at Santiago Creek Rd., Irvine Ranch Reserve, Management Area 15. Comment
  RSA733867  Nicotiana bigelovii Keith E. Hoffmaster 1934-7-15 114 Orange near Irvine Comment
  RSA13157  Nicotiana bigelovii var. wallacei Percy C. Everett 1935-6-28 7259 Orange 8/10 of a mi. east of Atwood. S. side of R. R. tracks. 1067 Comment
  HSC21272  Nicotiana glauca C. L. Hitchcock, C. V. Muhlick 1964-3-17 23059 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  UCR193777  Nicotiana glauca A. C. Sanders, Fred M. Roberts 2008-7-3 35687 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  UCR217290  Nicotiana glauca Mark A. Elvin 2003-3-30 2394 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA0060156  Nicotiana quadrivalvis Fred M. Roberts 1999-4-21 5177 Orange Lomas de Santiago: Loma Ridge, ridges north of Dripping Springs Cyn., 1.5 km W Silverado Sch. and 4.8 km NNW Bolero Lookout. 365 Comment
  RSA0060157  Nicotiana quadrivalvis A. C. Sanders, Fred M. Roberts 2008-4-8 34743 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCR152711  Nolina cismontana James C. Dice 1985-5-23 593 Orange Santa Ana Mtns, Upper Borrego Canyon along Santiago Canyon Rd., 1.8 km south of Modjeska Canyon Rd 440 Comment
  RSA734216  Nolina parryi Keith E. Hoffmaster 1936-5-3 726 Orange Live Oak Canyon, Santa Ana Mts Comment
  RSA98320  Oenanthe sarmentosa F. W. Peirson 1924-2-9 4525 Orange Between Wintersberg and the sea. Comment
  RSA752093  Oenothera contorta Norland 1929-4-2 45 Orange Cypress Comment
  RSA733638  Oenothera dentata Minor Warne 1934-03 s.n. Orange Near El Toro Comment
  RSA355662  Oenothera elata subsp. hirsutissima Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. Comment
  RSA771511  Oenothera micrantha Keith E. Hoffmaster 1927-4-2 465 Orange Santa Ana Mountains [county not specified] Comment
Read comments
Jun 10 2012
  UCR239649  Oenothera speciosa Fred M. Roberts 2012-5-9 7550 Orange Santa Ana Mountains, Lake Forest, near Serrano Creek utility road, 0.3 m south-southwest of intersection of Commercentre and Dimension Drives 206 Comment
  CDA6653  Oldenlandia corymbosa G. D. Barbe 1973-8-9 1695 Orange Bordier s Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). 0 Comment
  JEPS25886  Oligomeris linifolia L. M. Booth 1932-5-24 1097 Orange Newport Bay Comment
  RSA6613  Opuntia X occidentalis B. D. Stark 1933-1-21 4519 Orange Dana Point. 15 Comment
  RSA743468  Opuntia X vaseyi Fred M. Roberts 2008-10-27 7127 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  RSA727266  Opuntia dejecta R. E. Riefner 2006-7-23 06 -312 Orange South Coast: Newport Beach (city), north shore of Upper Newport Bay, west c. 0.25 mi. from intersection of Bayview Way and Bayview Place 11 Comment
  HSC3800  Opuntia littoralis J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  JEPS66886  Opuntia littoralis L. M. Booth 1933-10-24 Orange Newport Comment
  RSA542651  Opuntia littoralis var. vaseyi Fred M. Roberts, Carol A. Williams 1988-4-12 3924 Orange Lomas de Santiago: Loma Ridge, 3.3 km NW Bolero Lookout. 475 Comment
  CAS-BOT-BC56864  Opuntia oricola B. D. Stark 1933-1-26 4527 Orange Field redacted by CAS, contact the data manager for more information 182 Comment
  RSA6668  Opuntia oricola B. D. Stark 1933-1-17 4518 Orange 5 miles north of Laguna Beach on road to Irvine. 152 Comment
  SD240953  Opuntia oricola T. B. Salvato 2010-10-27 5128 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
  RSA0104810  Orobanche fasciculata R. S. Woglum 1941-6-20 s.n. Orange Peninsular Ranges: Harmony Ranch?, Santa Ana Canyon; Santa Ana Mountains [Orange/Riverside counties]. Comment
  RSA759532  Orobanche vallicola Robt. Allen 2006-12-13 s.n. Orange Holy Jim Canyon Trail. About 1 mile up trail from forest gate. Within 1-2 m W of the trail edge 640 Comment
  RSA184120  Oryza sativa I. L. Wiggins 1965-11-6 20335 Orange Drainage gutter near railway right of way, along west side of Atwood Comment
  IRVC15627  Osmorhiza brachypoda J. W. Johnson 1977-5-28 Orange Santiago Canyon, Fleming Property at E end of Modjeska; shaded bank of canyon side below chaparral. Santa Ana Mountains Comment
  RSA722453  Oxalis californica Unspecified s.n. Orange Orange County park. Comment
  UCR193383  Oxalis californica A. C. Sanders, Mitch Provance 2008-5-20 35391 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
  RSA12828  Oxalis pes-caprae Carl B. Wolf 1934-12-26 6261 Orange 1/8 mile south of San Juan Capistrano 30 Comment
  RSA652144  Oxalis pes-caprae Gary Guntle 1971-5-16 s.n. Orange Placentia, Kraemer Ave and Bastanchury Road. Orange orchard. Comment
  OBI82300  Pallenis maritima Unknown 2011-6-25 11 -74 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2 Comment
  RSA644978  Panicum acuminatum var. acuminatum R. E. Riefner 2000-2-19 20 -117 Orange Santa Ana Mtns. NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek and immediately N. of major stream fork. 305 Comment
  CDA2117  Panicum coloratum R. E. Riefner Jr. 2004-9-3 04 -425 Orange City of Los Alamitos, Oak Middle School, vicinity of Oak Street at Catalina Street. Comment
  RSA594891  Papaver californicum Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4904 Orange Santa Ana Mountains: San Juan Canyon, south side of CA route 74, 1.2 kilometers SW Lower San Juan Picnic Ground. 390 Comment
  CAS-BOT-BC413373  Parietaria hespera var. californica Helen D. Geis 1902-1-1 509 Orange Santa Ana Comment
  UCR222388  Parietaria hespera var. californica Mark A. Elvin 2003-1-26 2242 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 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
  RSA717518  Parietaria judaica R. E. Riefner 2006-5-21 6 -199 Orange City of Huntington Beach, Beach Blvd. at MacDonald St. 6 Comment
  UCR16077  Paspalum dilatatum N. J. Moriarty 1973-5-26 730526- 01 Orange South Coast, Huntington Beach, vacant lot at the corner of Beach Blvd. and Memphis Avenue 15 Comment
  POM364360  Paspalum distichum Albert J. Perkins 1912-10-15 s.n. Orange Peatlands near head Newport Bay. Comment
  RSA21040  Paspalum distichum E. R. Johnson 1938-8-22 9452 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA61  Paspalum distichum A. M. Johnson 1927-6-30 241 Orange Bryant Ranch near Long Beach 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
  RSA733140  Paspalum vaginatum R. E. Riefner 2007-10-17 7 -436 Orange City of Dana Point, Doheny State Beach, W side of San Juan Creek Lagoon. 6 Comment
  RSA766061  Paspalum vaginatum R. E. Riefner Jr. 2008-7-29 08 -257 Orange City of Dana Point, near Ritz-Carlton Hotel, Salt Creek Beach area. 0 Comment
  SBBG133655  Paspalum vaginatum R. E. Riefner Jr. 2008-8-31 08 -267 Orange tidal portion of San Diego Crk, immediately E of Hwy 73 overpass; Irvine 0 Comment
  UC1930114  Paspalum vaginatum R. E. Riefner Jr. 2008-1-13 08 -9 Orange City of Newport Beach, San Diego Creek near Hwy. 73 overpass, E of Jamboree Rd. Comment
  RSA0045505  Pectocarya linearis Keith E. Hoffmaster 1935-3-17 841 Orange Near El Toro[Lake Forest] (Trabuco rd.). Comment
  RSA0054893  Pectocarya linearis Keith E. Hoffmaster 1932-2-28 62 Orange Santa Ana Mts. Comment
  UCD103490  Pelargonium A. C. Sanders 2003-10-12 27314 Orange Southern Coastal Slope: Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  IRVC28859  Pelargonium Mark A. Elvin 2005-5-14 4314 Orange UCI Arboretum Southern Coastal 15 Comment
  SD174883  Pelargonium grossularioides Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal: UCI Arboretum, growing wild in the Arboretum grounds, not cultivated. 14 Comment
  CAS-BOT-BC67762  Pellaea andromedifolia Ira L. Wiggins 1966-2-4 20420 Orange Among rocks on floor of Trabuco Cnayon, about 1/2 mile above canyon mouth. Comment
  RSA702806  Pellaea mucronata D. E. Bramlet, F. M. Roberts 2003-3-27 3359 Orange Donna O'Neill Reserve. 305m west of Cristianitos Rd. and 1.5km N of the E-W access road. 134 Comment
  RSA739323  Pellaea mucronata Keith E. Hoffmaster 1931-1-1 33 Orange Santa Ana Mountains 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
  RSA328946  Pennisetum ciliare var. ciliare J. West 1983-10-8 s.n. Orange City of Orange. Comment
  RSA0014064  Pennisetum setaceum Fred M. Roberts 2008-5-30 7015 Orange Lomas de Santiago: Santiago Creek wash, 0.6 km SSE Silverado Sch., Irvine Ranch Conservancy. 314 Comment
  UCR191241  Pennisetum setaceum A. C. Sanders 2008-4-29 35138 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
  UCR236680  Pennisetum villosum Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7102 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
  RSA0054891  Penstemon cordifolius Keith E. Hoffmaster 1941-7-14 1251 Orange At Blanding Nursery, Santa Ana. Comment
  RSA790701  Penstemon cordifolius R. H. McArthur 1934-5-19 2 Orange PR8. Trobuca Canyon. Comment
  POM256951  Penstemon grinnellii W. Pequegnat 1940-5-17 s.n. Orange West base of Santiago Peak. 1677 Comment
Read comments
Sep 29 2007
  UC1011907  Penstemon heterophyllus F. W. Pennell and E. M. Harvey 1949-6-29 26804 Orange Ortega Highway above San Juan Capistrano; above San Juan Capistrano Comment
  RSA759276  Penstemon heterophyllus Robert Allen, Lori Whalen 2008-7-5 s.n. Orange Dry foothills along a SW-facing ridge, slong Santiago Truck Trail, 0.5 air miles E of USPF Forest Gate at Modjeska Grade Road. Comment
  NY601616  Penstemon heterophyllus var. australis F. W. Pennell 1949-6-29 26804 Orange Ortega Highway, above San Juan Capistrano. Comment
  NY601663  Penstemon heterophyllus var. australis F. R. Fosberg 1931-6-21 55149 Orange Silverado Canyon, Santa Ana Mountains Comment
  UCSB52446  Penstemon heterophyllus var. australis Roberts, Fred 1982-7-20 Orange Santa Ana Mtn; 0.2 km N Falcon Group Camp: 2.0 km ESE Los Pinos Peak 1010 Comment
  POM256957  Penstemon heterophyllus var. australis W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  UCR97636  Penstemon heterophyllus var. heterophyllus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1647 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
  CAS-BOT-BC330343  Pentachaeta aurea P. C. Everett 1935-4-22 6463 Orange Santa Ana Canyon, 0.25 mi W of Horseshoe Bend 121 Comment
  POM156456  Pentachaeta aurea L. R. Abrams 1903-4-17 3259 Orange Near El Toro Comment
  RSA751315  Pentachaeta aurea subsp. allenii A. C. Sanders, Fred M. Roberts 2008-5-6 35272 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  RSA0060233  Pentagramma triangularis Fred M. Roberts, Laura Cohen 2000-3-24 5272 Orange Rancho Mission Viejo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  RSA0060348  Pentagramma triangularis J. R. Shevock 1970-12-20 572 Orange Silverado Canyon. 585 Comment
  IRVC14090  Pentagramma triangularis subsp. triangularis K. Marvosh 1966-5-3 Orange Silverado Canyon, 400yds S community center; moist, rocky, shaded bank of stream. Santa Ana Mountains Comment
  SD224906  Peritoma arborea B. Pitzer 1996-4-30 2796 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (= Pacific Coast Hwy). 14 Comment
  UCSB44694  Peritoma arborea Hibbard, Doug 1977-3-4 Orange Off immediate south side of Back Bay Rd., 0.7 miles from crossing Jamboree Blvd. Comment
  CAS-BOT-BC77511  Peritoma arborea var. arborea R. D. Goeden; D. W. Ricker 1965-6-21 s.n. Orange Dana Point 60 Comment
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Feb 22 2019
  SEINET1906996  Persea borbonia R. W. Scora 1997-1 5145 Orange Scora's Persea Species Collection, Field 43, South Coast Resertch and Extension Center (Field Station), Irvine. 21 Comment
  SEINET235756  Persea borbonia R. W. Scora 1996-9-2 5087 Orange CULTIVATED ; University of California south Coast Field Station near Irvine. Field 3 Row 42 tree 9. Comment
  CAS-BOT-BC413482  Persicaria amphibia Carl B. Wolf 1932-7-7 3835 Orange Bryant Ranch, Bixby Ave., 100 ft. west of Hansen Road (100 ft. W. of S.E. corner of N.E. 40 of N.E. 160 of Sect. 34 T4S R11W) Comment
  RSA0014990  Phacelia brachyloba Fred M. Roberts 2008-5-20 6990 Orange Lomas de Santiago: Santiago Creek wash north of Hanging Man s Tree Road near confluence of Pancho Cyn., 1.6 km NW Bolero Lookout. Irvine Ranch Conservancy. 349 Comment
  RSA638969  Phacelia cicutaria var. hispida Valerie L. Soza, LeRoy Gross 1999-6-8 498 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  UCR192455  Phacelia cicutaria var. hispida A. C. Sanders, Fred M. Roberts 2008-3-25 34575 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UCR209379  Phacelia cicutaria var. hispida Fred M. Roberts, Linda Farley 2008-3-28 6820 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  RSA553116  Phacelia cicutaria var. hispida Fred M. Roberts, Carol A. Roberts 1989-5-11 4348 Orange Santa Ana Mountains: Upper Blind canyon, east fork, along power line maintainance road, 3.9km SE Walnut Reservoir. 381 Comment
  UCR239654  Phacelia ciliata Fred M. Roberts 2012-4-27 7543 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, 1.5 km west-southwest of Irvine Lake Park Campground and 1.1 km east of Orange County Emergency Operations Center, Hill 1311 311 Comment
  RSA708371  Phacelia curvipes Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6239 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  HSC83900  Phacelia davidsonii Christopher Davidson 1977-5-18 5608 Orange Santa Ana Mts. Cleveland Nat. Forest. Santiago Peak (on Orange-Riverside Co. line). 1707 Comment
  RSA732234  Phacelia distans A. C. Sanders, Fred M. Roberts 2008-4-22 35040 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  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
  UCR215310  Phacelia distans Fred M. Roberts 2008-3-26 6800 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near NE gate, 0.5 km west of Marine Institute, Dana Point Harbor 75 Comment
  UCR224037  Phacelia distans Justin M. Wood 2010-3-31 1445 Orange Santa Ana Canyon, Santa Ana River floodplain, 0.25 mi north of Coal Canyon wildlife corridor, west of Green River Golf Course on bluff south of the river 122 Comment
  UCR281548  Phacelia distans Mitch Provance, Jeremiah George 2017-3-20 317- 122 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  RSA699654  Phacelia hispida Keith E. Hoffmaster 1934-4-22 s.n. Orange Santa Ana Mountains Comment
  RSA759105  Phacelia imbricata Robt. Allen, Genevieve K. Walden, Lisa W. Young 2008-6-26 s.n. Orange Modjeska Peak, W-facing slope within 2 m of the access road up Modjeska Peak. Approximately midway between the peak's south-facing slope and the sharp bend in the extreme N end of the road. 1643 Comment
  RSA708726  Phacelia imbricata subsp. patula Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6222 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  RSA596  Phacelia minor J. T. Howell 1928-4-7 906 Orange Near the ranch houses, Rancho Santa Ana. 152 Comment
  RSA697789  Phacelia minor L. C. Hull 1934-4-24 s.n. Orange Trabuco Canyon. Comment
  RSA734633  Phacelia minor A. C. Sanders, T. B. Salvato 2008-5-13 35363 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCSB48211  Phacelia minor Roberts, Jr., Fred 1981-5-3 Orange Santa Ana Mtns.; Hot Springs Canyon, 1.3 km. NNE San Juan Guard Station 276 Comment
  RSA681269  Phacelia parryi Scott D. White, Michael Honer 2003-5-29 9434 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. Steep, gen. south-facing slopes above trib. to Trampas Canyon, ca. 0.6 air mi. S of Ortega hwy and ca. ca. 0.5 mi west of Trampas Cyn. 122 Comment
  RSA732082  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-3-25 34551 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  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
  RSA794332  Phacelia parryi Justin M. Wood 2010-3-31 1449 Orange [Santa Ana Canyon:] Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corrridor, west of Green River Golf Course on bluff south of the river. 122 Comment
  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
  RSA759206  Phacelia suaveolens subsp. keckii Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, S face, midway down a steep fire break cut from the summit down to the access road. Survey point #60. 1663 Comment
  UC537058  Phacelia tanacetifolia P. A. Munz 1934-3-26 13133 Orange ravine Newport Beach 12 Comment
  IRVC18590  Phalaris aquatica Karlin G. Marsh 1980-8-13 s.n. Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  UCR170303  Phalaris aquatica Karlin G. Marsh 1983-5-25 s.n. Orange South Coast, side of Sycamore Hills, Laguna Canyon Comment
  UCR152757  Phalaris lemmonii D. E. Bramlet 2003-6-8 3461 Orange South Coast, Fairview Park in Costa Mesa, 152 m west of Canyon School and 396 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  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
  IRVC22183  Phalaris minor Fred M. Roberts 1985-4-11 1642 Orange Dana Point Headlands; Weyerhaeuser Horticultural Research Station property. Southern Coastal 61 Comment
  RSA599635  Phalaris paradoxa Fred M. Roberts, Nigel Hancock 1995-5-25 4950 Orange Costa Mesa: Fairview Park, just west of end of Canyon Drive, 0.1 km W Canyon School 24 Comment
  POM8746  Pholistoma auritum P. A. Munz, R. D. Harwood 1920-4-25 3725 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  RSA683932  Phyllospadix scouleri E. Yale Dawson 1957-2-14 16149 Orange Laguna Beach, Orange County Comment
  CLARK-A1528-4427  Phyllospadix torreyi John C. Roos 1960-8-27 Orange Dana Point Comment
  RSA384024  Phyllospadix torreyi Gigas 1832-6-26 15492 Orange Laguna Beach. Comment
  UCR19247  Phyllospadix torreyi John C. Roos 1960-8-27 s.n. Orange Dana Point Comment
  RSA597723  Physalis crassifolia D. Bramlet 1994-6-2 2380 Orange San Joaquin Hills. On ridgeline northwest of Laguna Canyon. The site is located 396m west of Laguna Canyon. Rd. and 305m north of Little Sycamore Canyon. Comment
  JEPS8966  Physalis philadelphica John Thomas Howell 1927-7-28 2869 Orange Santa Ana Canyon, Rancho Santa Ana Santa Ana Canyon; , Rancho Santa Ana 152 Comment
  RSA759537  Pickeringia montana var. tomentosa Robert Allen, Nancy Heuler 2007-5-19 s.n. Orange San Juan Trail circa 2.6 air miles below (SW of) trailhead at southern edge of Blue Jay Campground, circa 2.1 air miles above (NE of) trailhead at Hot Springs Canyon 848 Comment
  UCSC000843  Picris echioides I. J. Condit 2008-7-25 s.n. Orange Huntington Beach Comment
  POM17834  Picris echioides P. A. Munz 1923-9-7 7772 Orange Tustin 30 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
  UCD169804  Pinus attenuata R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49694 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  RSA129457  Pinus coulteri H. E. Norton 1931-3-20 44 Orange Corona. T4S R7W [Corona Quadrangle map]. Plot #30, Corona #2. Comment
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Jul 14 2014
  UCR174182  Pinus coulteri A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33036 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA539344  Piperia cooperi Fred M. Roberts, Gordon Marsh 1987-5-14 3449 Orange Santa Ana Mountains: Upper Trabuco Canyon, Trabuco Canyon Trail, 2 kilometers NNW Los Pinos Peak. 856 Comment
  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
  SEINET5642647  Pittosporum tobira Shelby J. Wood 2013-3-9 9 Orange Huntington Beach, Central Park.; 0 Comment
  UCR188937  Pittosporum undulatum Robert DeRuff 2006-1 566 Orange Newport Beach, Upper Newport Bay, Eastbluff 30 Comment
  CLARK-A1528-3590  Pityrogramma triangularis var. viscosa John C. Roos 1937-2-23 1316 Orange Laguna Hills Comment
  CAS-BOT-BC354027  Plagiobothrys acanthocarpus R. E. Riefner, Jr. 2013-3-17 13 -44 Orange City of Irvine, Jeffrey Trail, vicinity of Shady Canyon Dr. at Fossil Rd. 47 Comment
  UCR223980  Plagiobothrys collinus Dick Newell, Don Millar 2011-2-1 095 Orange South Coast, Shady Canyon, SSE of Irvine, 0.1 mile east of the easterly end of Canyon Creek Rd. 175 Comment
  RSA368943  Plagiobothrys collinus var. californicus Albert J. Perkins 1914-3-9 s.n. Orange Laguna Beach Comment
  IRVC14769  Plagiobothrys collinus var. fulvescens D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  UC1212098  Plagiobothrys fulvus var. campestris D. Bates 1960-4-2 2307 Orange Route 74 e San Juan Capistrano Comment
  UCR191000  Plagiobothrys nothofulvus A. C. Sanders, Fred M. Roberts 2008-4-22 35045 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map 457 Comment
  UCSB47617  Plagiobothrys nothofulvus Roberts, Fred 1980-5-3 Orange Santa Ana Mtns.: 0.3 km. NNW Blue Jay Campground 1020 Comment
  UCSB48118  Plagiobothrys nothofulvus Roberts, Fred 1982-4-3 Orange Rancho Mission Viejo: Calif. 47; 7.2 km. by road E San Juan Capistrano; 1.3 km NE Viejo Survey Marker 98 Comment
  RSA666092  Planodes virginica Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5430 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 226 Comment
  SEINET8394534  Plantago elongata Unknown 1937-4-24 3936 Orange Dana Point. Comment
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Oct 21 2019
  SEINET10805703  Plantago erecta Richard E. Riefner Jr. 2006-4-12 Riefner 06 -118 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. (Tustin 7.5'Q). 46 Comment
  UC1618039  Plantago erecta Donald G. Nelson 1935-4-14 282 Orange Near Pacific Electric Railway Station. Newport Beach Comment
  RSA698383  Plantago major Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  IRVC28915  Plantago rhodosperma Fred M. Roberts, Karlin G. Marsh 1988-4-25 3931 Orange San Joaquin Hills: E flank Pelican Hill, 0.9km SE summit. Southern Coastal 120 Comment
  RSA424280  Plantago subnuda Anstruther Davidson 1908-5-1 1791 Orange Corona del Mar Comment
  UCR193772  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-7-3 35700 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  UCSB48123  Platanus racemosa Roberts, Fred 1981-4-11 Orange Highway 74; 5.2km E San Juan Capistrano, near crossing of San Juan Creek 52 Comment
  SEINET7779659  Platanus racemosa Unknown 1966-8-22 2390 Orange O'Neill State Park, about 20 miles southeast of Anaheim Comment
  CAS-BOT-BC92244  Platystemon californicus D. E. Breedlove 1962-3-9 1799 Orange 4.4 miles east of San Juan Capistrano on State 74. 112 Comment
  SBBG126059  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 -312 Orange vicinity of W St and Pacific Coast Hwy; City of Laguna Beach 4 Comment
  SD218283  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 151 Orange City of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort. Comment
  CDA34952  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 -151 Orange Dana Point; beach near Salt Creek, vicinity of Ritz Carlton Resort. Comment
  RSA731529  Plecostachys serpyllifolia R. E. Riefner 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Ln. and Polaris Dr. 8 Comment
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Dec 13 2012
  IRVC29816  Pluchea odorata Mary H. White 2006-9-23 92306 2 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
  POM4883  Pluchea odorata D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  RSA639847  Pluchea odorata Sandra Leatherman 1998-9-3 45 Orange Dana Point: Monarch Beaach, NE of the intersection of State Hwy 1 and Crown Valley Parkway and W of Salt Creek. 30 Comment
  UCR240106  Pluchea odorata Dick Newell, Judy Booth 2012-9-26 287 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 3 Comment
  RSA160418  Pluchea odorata J. D. Olmsted 1959-9-22 981 Orange Along Santa Ana River N of Sycamore Park along Hwy. 8-9mile WSW of Corona, betw Santa Ana Mts and Puente Hills to Pacific Ocean 137 Comment
  RSA302005  Pluchea odorata J. R. Shevock 1972-9-27 2282 Orange Newport Beach Bay. 3 Comment
  RSA716662  Plumbago auriculata Fred M. Roberts, Amber Oneal 2004-8-18 6095 Orange San Juan Capistrno: Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  UCSB48074  Poa annua Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N Dana Hills High School; 1.9 km. W Marco Forster Junior High School 100 Comment
  RSA699308  Poa pratensis Keith E. Hoffmaster 1927-5-30 33 Orange Santa Ana. Comment
  RSA542549  Poa secunda Fred M. Roberts 1988-2-9 3777 Orange Lomas de Santiago: Loma Ridge, 1.3 km N Bee Survey Mark., UTM 3733600m N, 434800m E 381 Comment
  RSA749472  Poa secunda subsp. secunda Fred M. Roberts, Linda Farley 2008-3-28 6827 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  RSA644981  Pogogyne douglasii subsp. parviflora R. E. Riefner Jr. 2000-4-5 20 -211 Orange North Ranch Policy Plan Area, Main Divide Road, top of Gypsum Canyon, east of Windy Ridge. 518 Comment
  UCR102030  Polycarpon tetraphyllum B. G. Pitzer 1997-3-25 3027 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  CLARK-A1528-3939  Polygala cornuta subsp. fishiae John C. Roos 1960-5-30 Orange Santa Ana Mountains Comment
  RSA460143  Polygala cornuta var. fishiae Theodore Payne 1917-1 3122 Orange Santiago Canyon. Comment
  RSA557729  Polygala cornuta var. fishiae Steve Boyd, Tim S. Ross 1992-5-4 7172 Orange Santa Ana Mountains, San Juan Canyon along Ortega Hwy (Hwy 74) at pullout 2.9 miles east of San Juan Guard Station. Comment
  RSA749041  Polygonum aviculare A. C. Sanders, Fred M. Roberts 2008-8-7 35972 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UCR195017  Polygonum aviculare A. C. Sanders, Fred M. Roberts 2008-8-7 35972 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
  UCR96858  Polygonum aviculare Scott D. White 1993-4-28 1284 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  RSA0051242  Polygonum aviculare Keith E. Hoffmaster 1934-1 491 Orange Santa Ana. Comment
  UCSB48371  Polygonum aviculare Roberts, Fred 1982-5-22 Orange DANA POINT: jct. of Stone Hill and Selva Rds 1.0km ESE Dana Hills High School; 1.7km SW Marco Forster Junior High School 12 Comment
  JEPS51305  Polygonum aviculare subsp. aviculare Lawrence M. Booth 1932-7-4 1254 Orange Newport Bay Comment
  POM2364  Polygonum aviculare subsp. aviculare D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. 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
  IRVC3046  Polypodium californicum A. S. Boughey 1965-3-5 51 Orange Trabuco Canyon. Santa Ana Mountains Comment
  POM12347  Polypodium californicum E. S. Spalding 1921-4-16 169 Orange Laguna Beach. Comment
  UCSB62527  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Arch Rock near Corona del Mar 30 Comment
  IRVC27750  Polypogon monspeliensis Mark A. Elvin 2004-5-2 3416 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  JEPS70690  Polypogon monspeliensis L. M. Booth 1932-5-12 1044 Orange Newport Bay Comment
  SD220029  Polypogon monspeliensis Mark A. Elvin 2004-5-2 3416 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  RSA735748  Polypogon viridis A. C. Sanders, Fred M. Roberts 2008-6-17 35494 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
  RSA679095  Polystichum imbricans subsp. curtum Fred M. Roberts 2003-6-25 5950 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  UCR113446  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr., Adrian Wolf 2000-6-24 20- 116 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, Fremont Canyon, N. of Santiago Creek & immediately N. of major stream fork 305 Comment
  UCR171019  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2006-4-8 06- 111 Orange South Coast, San Juan Capistrano (city), San Juan Creek at La Novia Ave. 22 Comment
  UCR195011  Populus balsamifera subsp. trichocarpa A. C. Sanders, Fred M. Roberts 2008-8-7 35974 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  UCR240176  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2012-9-23 12- 512 Orange city of Yorba Linda, Santa Ana Canyon, north side of Santa Ana River, La Palma Avenue at Via Del Rio Road 104 Comment
  CAS-BOT-BC102599  Populus fremontii Marcus E. Jones 1930-3-3 26533 Orange Santa Ana Mountains Comment
  LA208544  Populus trichocarpa W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA722930  Populus trichocarpa R. E. Riefner Jr. 2007-6-12 7 -253 Orange City of San Juan Capistrano. Vicinity of Calle Arroyo/ Paseo Esteban at San Juan Creek. 35 Comment
  CLARK-A1528-2062  Porophyllum gracile John C. Roos 1937-5-10 2337 Orange San Juan Capistrano Comment
  RSA598970  Porophyllum gracile Scott D. White 1997-3-28 4841 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  SD152924  Porophyllum gracile Steve Boyd, Tim Ross 1992-5-19 7447 Orange Southern Santa Ana Mountains, western edge of the wilderness in Aliso Canyon at the confluence with Lucas Canyon. 274 Comment
  RSA934  Porophyllum gracile J. T. Howell 1927-7-28 509 Orange Nolina Canyon, Rancho Santa Ana 152 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
  RSA708440  Prosopis glandulosa var. torreyana Mark Elvin 2004-5-2 3419 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  UCR106274  Prunus caroliniana B. G. Pitzer, M. Georgiady 1997-4-5 3078 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  CAS-BOT-BC356379  Pseudognaphalium beneolens John Thomas Howell 1927-7-16 2782 Orange Hills on north side of Santa Ana Canon [Canyon] 152 Comment
  SBBG103896  Pseudognaphalium biolettii B. Pitzer with S. Hemstreet 1992-5-21 1945 Orange State Hwy 74, 1 mi uphill from the 2000 ft marker, and to the left ca .1 mi on an old paved rd; Cleveland National Forest Comment
  UCR106310  Pseudognaphalium biolettii B. G. Pitzer, M. Georgiady 1997-4-5 3096 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  SEINET9307949  Pseudognaphalium californicum Unknown 1996-5-11 19 Orange Newport Back Bay, 25 yrds in along bike path. Dry coastal mudflat dominated by Typha. Comment
  CHSC106735  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. UTM: (NAD 83) 11S0439837E 3707224N. 31 Comment
  OBI74762  Pseudognaphalium leucocephalum Unknown 2007-2-13 Jul- 55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek 31 Comment
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Dec 14 2012
  UCR281842  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2017-8-14 17- 408 Orange South Coast, city of San Juan Capistrano, San Juan Creek. Northeast from San Juan Creek Road and Camino Chico, opposite Blenheim Farms & Equestrian Center, south of Ortega Hwy 47 Comment
  UC1922345  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. Comment
  UC536948  Pseudognaphalium ramosissimum Lawrence M. Booth 1932-7-27 1321 Orange Corona del Mar Newport Beach, Corona del Mar Comment
  UCSB48065  Pseudognaphalium ramosissimum Roberts, Jr., Fred; Fritzke, S. 1982-4-3 Orange Dana Point Headlands; along Scenic Dr., near jct. with Cove Rd., 0.4 km. W Dana Point Harbor; 0.7 km. S Richard Henry Dana School 70 Comment
  SD236118  Pseudotsuga macrocarpa June Latting, F. Shropshire 1972-4-28 Orange Peninsular ranges/Santa Ana Mountains: Silverado Canyon, 6.3 mi from Silverado Forest Station [presumably up canyon from Silverado] at S curve in road 1098 Comment
  UCR203877  Pseudotsuga macrocarpa R. E. Riefner Jr. 2008-6-3 08- 134 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east fork of Fremont Canyon, Black Star SCE Road 646 Comment
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Jun 8 2011
  RSA609946  Psilocarphus brevissimus D. Bramlet 1993-4-25 2333 Orange University of California, Irvine Campus, UCI Ecological Reserve. This site is 150 ft. south of Berkeley Ave. and 1000 ft. west of the northeast reserve entrance 41 Comment
  RSA799621  Psilocarphus brevissimus var. brevissimus Justin M. Wood 2011-4-12 3653 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  IRVC14072  Psilotum nudum B. T. Gittins Mar 1967 s.n. Orange California State College at Fullerton; Greenhouse. Southern Coastal 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
  IRVC3171  Pteridium aquilinum var. pubescens T. Baskin 1965-4-29 Orange Doheney St. Pk. Dana Point or Capistrano Beach Comment
  POM8723  Pterostegia drymarioides P. A. Munz, R. D. Harwood 1920-4-17 3802 Orange Laguna Canyon. 61 Comment
  RSA198  Pterostegia drymarioides J. T. Howell 1927-6-24 198 Orange Aliso Canyon, Rancho Santa Ana. 274 Comment
  UCR193500  Pterostegia drymarioides A. C. Sanders, T. B. Salvato 2008-5-13 35364 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA591804  Pulicaria hispanica P. H. Raven 1961-10-15 16857 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  CDA7144  Pulicaria paludosa D. G. Kelch 2006-12-9 6 .57 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA783437  Pulicaria paludosa J. D. Olmsted 1959-9-22 991 Orange Near Sycamore Park along Santa Ana River by junction of industrial waters from the 3 M clay works to the south; 8-9 miles W of Corona; base of north Santa Ana Mts. 137 Comment
  RSA562815  Pyrus communis Steve D. Boyd, Tim S. Ross 1992-5-20 7468 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing Lucas Canyon Trail., Upstream 1/4 mile to spur trail leading to old mining habitations in side canyon. 305 Comment
  UCD47705  Quercus X acutidens John M. Tucker 1941-5-30 256 Orange Low shrub, in San Juan Canyon, 200 yards west of San Juan Guard Station, Highway 74, Orange County, California. Comment
  CAS-BOT-BC61812  Quercus agrifolia C. B. Wolf 1931-3-6 1832 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  RSA697622  Quercus agrifolia Unspecified s.n. Orange Orange County park. Comment
  IRVC20799  Quercus agrifolia var. agrifolia Fred M. Roberts 1982-4-18 522 Orange Hot Springs Canyon; 0.8km SW Falcon Group Camp. Santa Ana Mountains 1005 Comment
  UCSC009093  Quercus agrifolia var. agrifolia Al Keuter 2015-3-25 10- 17 -3 Orange SR 133 near Laguna Beach 46 Comment
  RSA0042530  Quercus berberidifolia Fred M. Roberts 2013-5-30 7779 Orange Lomas de Santiago: Santiago Creek wash, at Santiago Canyon Road bridge (south side), 0.3km W jct. Silverado and Santiago Canyon Roads. 299 Comment
  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
  UCR119316  Quercus berberidifolia R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 454 Orange Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 473 Comment
  IRVC1334  Quercus chrysolepis A. S. Boughey 1965-3-16 68 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  RSA638960  Quercus chrysolepis Valerie L. Soza, LeRoy Gross 1999-6-7 485 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UCSB52402  Quercus cornelius-mulleri Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.; Long Cyn. along road 1.0 km. W Calif. 74; 2.3 km. SE Blue Jay Camp Ground 800 Comment
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Dec 6 2016
  RSA542389  Quercus engelmannii Richard Ericson 1991-6-11 s.n. Orange San Joaquin Hills: upper Coyote Canyon on north signal peak, ca. 0.6 km NW summit, UTM 37 19 000m N, 4 24 200m E alt. 204m 204 Comment
  RSA688975  Quercus engelmannii Fred M. Roberts, D. E. Bramlet 2003-4-10 5645 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  UCR177695  Quercus engelmannii Fred M. Roberts 2003-5-1 5685 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km west of Cristianitos Rd. 96 Comment
  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
  IRVC19902  Quercus lobata Gordon A. Marsh, Karlin G. Marsh 1983-7-15 s.n. Orange San Joaquin Hills, Upper Shady Canyon. Southern Coastal Comment
  UCD132263  Quercus palustris Peter Evans 2013-4-20 s.n. Orange Niguel Botanical Preserve located at 29751 Crown Valley Parkway, Laguna Niguel. 99 Comment
  SEINET7249074  Quercus suber R. E. Riefner Jr. 2014-1 14 -89 Orange City of Yorba Linda, Yorba Linda Regional Park along East La Palma Ave., W of Yorba Linda Blvd; Parking Low #7. 92 Comment
  RSA0058056  Rafinesquia californica Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49605 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA724036  Ranunculus arvensis R. E. Riefner 2000-5-2 0 -412 Orange Vicinity of Trabuco Canyon Rd. and Rose Canyon Rd. along Trabuco Creek. 312 Comment
  UCR78041  Ranunculus californicus Scott D. White 1993-4-7 1197 Orange Laguna Mtns., Laguna Canyon, E side of Laguna Canyon Road (Hwy 133), above Hillies Lane. (Thomas Bros. Orange County Map: F-3 on 33A). Comment
  POM6265  Ranunculus hebecarpus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2630 Orange Santa Ana River Canyon. Comment
  IRVC1161  Raphanus sativus L. Stilgenbauer 1965-4-10 Orange Corona del Mar, 339 Milford Dr.; in canyon. Newport Beach Comment
  OBI30177  Raphanus sativus T. W. Niilus 1970-2-14 N 16 Orange 1 mi E of Yorba Linda on Imperial hwy on road cut 91 Comment
  UCSB41794  Raphanus sativus MacKay, Shelley 1971-5-11 Orange 0.1 mile west of Bloomfield Avenue, Cypress 30 Comment
  RSA797378  Rhamnus californica Minor Warne 1934-4-7 12 Orange Ladd Canyon Comment
  SEINET3075984 Image available Rhamnus californica Reid Moran 1975-7-18 725 Orange Common in bottom of upper Trabuco Canyon, Santa Ana Mountains. 725 Comment
  UCR240084  Rhamnus californica Dick Newell, Judy Booth 2012-6-3 265 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
  RSA462  Rhamnus ilicifolia J. T. Howell 1927-6-17 152 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UC592699  Rhamnus ilicifolia P. C. Everett 1935-6-19 Orange 2 mi below Forest Service Patrol Station; Santa Ana Mts., Trabuco Canyon 365 Comment
  UC592927  Rhamnus ilicifolia P. C. Everett 1936-9-19 Orange vicinity Forest Service Road gate; Santa Ana Mts., Silverado Canyon 762 Comment
  CLARK-A1528-116  Rhus integrifolia Cesareo Perez 1971-5-4 2 Orange Villa Park Comment
  HSC25246  Rhus integrifolia R. W. Spjut 1972-2-22 2221 Orange Near S Laguna Beach along Hwy. 1 0 Comment
  RSA17492  Rhus integrifolia Ramon Valverde 1936-8-31 8237 Orange Rancho Santa Ana Botanic Garden.Wild plants in Pine Canyon. Comment
  RSA337339  Rhus integrifolia Steve Boyd, L. LaPre 1981-5-27 s.n. Orange N end of the Santa Ana Mountains along power line road on ridges E of Weir Canyon and the head of Gypsum Canyon. Comment
  RSA386362  Rhus integrifolia Albert J. Perkins 1923-6-28 s.n. Orange Negre Canon Beach, Santa Ana. Comment
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Nov 1 2013
  RSA449  Rhus integrifolia J. T. Howell 1927-7-29 517 Orange Near east boundary of Rancho Santa Ana. 213 Comment
  RSA5376  Rhus integrifolia B. D. Stark 1932-12-30 4463 Orange Rancho Santa Ana, slopes NW of tennis court. 192 Comment
  RSA678717  Rhus integrifolia Fred M. Roberts, Laura Cohen 2000-3-24 5271 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  UCR203983  Rhus integrifolia Fred M. Roberts 2008-3-12 6722 Orange South Coast, Dana Point Headlands Center for Natural Lands Mgmt. Preserve, west side, c. 0.8 km west of Marine Institute, Dana Point Harbor 50 Comment
  RSA0031756  Rhus integrifolia R. F. Thorne 1977-11-21 50818 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  CLARK-A1528-117  Rhus laurina Cesareo Perez 1971-5-4 1 Orange Villa Park Comment
  IRVC84  Rhus ovata A. S. Boughey 128 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  SEINET10494684  Rhus ovata Charlene A. Bennett 1976-7-21 Bennett 437 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  SBBG28484  Ribes indecorum R. J. Weatherby 1950-2-25 1027 Orange Harding Cyn 579 Comment
  UC484236 Image available Ribes indecorum C. B. Wolf 1931-3-6 1833 Orange 1 1/2 mi below Trabuco Oaks (Trabuco Canyon Road, w slope of mts.); Santa Ana Mts. 304 Comment
  POM9115  Ribes indecorum P. A. Munz, R. D. Harwood 1920-4-24 3750 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  UC1127272  Ribes malvaceum J. B. Spring 1931-4-6 29 Orange n Trabujo Canyon; Corona Quadrangle 243 Comment
  RSA1336  Ribes malvaceum var. viridifolium E. R. Johnson 1929-3-12 1250 Orange Canyon West of Roundtop Rancho Santa Ana. 457 Comment
  RSA1337  Ribes malvaceum var. viridifolium E. R. Johnson 1929-3-12 1251 Orange Canyon West of Roundtop Rancho Santa Ana. 457 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
  RSA0018261  Ribes roezlii Percy C. Everett 1935-6-18 7215 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  CAS-BOT-BC173741  Ribes speciosum James R. Shevock 1978-4-26 5902 Orange Along FS road 3S04 between Beeks Place and Black Star Canyon Road. Santa Ana Mountains, Cleveland National Forest 914 Comment
  POM293817  Ribes speciosum Lyman Benson 1947-4-27 12336 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  POM7068  Ribes speciosum L. T. Street 1919-3-30 2456 Orange Turnball Canyon. Comment
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Sep 5 2013
  RSA162813  Ribes speciosum J. D. Olmsted 1958-3-4 20 Orange Small pond with westward drainage into Irvine lake, 250yards. West of Oak Flat fire road intersection, which is 9 miles southeast of Corona in Santa Ana Mts. 793 Comment
  RSA702761  Ribes speciosum Scott D. White, Michael Honer 2004-5-17 10384 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  JEPS53978  Ricinus communis S. B. and W. F. Parish October, 1882 1599 Orange near Anaheim Comment
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Jul 18 2010
  OBI30079  Ricinus communis T. Pringle 1966-3-3 42 Orange On a hill ner the jctn of Newport Blvd, and Riverside hwy Comment
  SD175819  Ricinus communis D. G. Kelch 2006-12-9 06 560 Orange Irvine. University Dr. along tidal creek just E of I-73. 9 Comment
  POM2747  Ricinus communis P. A. Munz 1918-5-5 2177 Orange Laguna. Comment
  RSA0042758  Ricinus communis Grace Adams 1938-5-30 s.n. Orange Santiago Creek. Comment
  RSA0050276  Romneya coulteri Fred M. Roberts 2013-6-12 7799 Orange Peninsular Ranges SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road,, 0.9 km ENE Silverado School and 1.7 km up stream Black Star Road crossing. 332 Comment
  RSA548867  Romneya coulteri Fred M. Roberts, Carol A. Roberts 1988-6-2 4028 Orange Santa Ana Mountains: Silverado Canyon. Maple Springs Truck trail. 4.3 km above gate, 1.0 km WSW Bald Peak. 817 Comment
  UCR240080  Romneya coulteri Dick Newell, Don Millar 2012-5-22 252 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hangmans Tree Rd. at Santiago Creek 350 Comment
  CAS-BOT-BC92179  Romneya coulteri var. coulteri John Thomas Howell 1927-7-24 2833 Orange Floor of Claymine Canon [Canyon], north Santa Ana Mountains. 152 Comment
  RSA0014062  Romneya trichocalyx Fred M. Roberts 2008-5-30 7017 Orange Lomas de Santiago: Santiago Creek wash, south of Irvine Mesa, 1.5 km SE Silverado Sch., Irvine Ranch Conservancy. 326 Comment
  CAS-BOT-BC74421  Rorippa curvisiliqua P. A. Munz 1918-5-4 2208 Orange Laguna Lakes. Comment
  UCR128315  Royena lycioides subsp. lycioides A. C. Sanders, Mark A. Elvin 2003-10-12 27331 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  RSA376  Rubus ursinus J. T. Howell 1927-7-6 280 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR26630  Rubus ursinus E. W. Lathrop 1966-5-1 6259 Orange Santa Ana Mtns., 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  JEPS39886  Rumex conglomeratus Lawrence M. Booth 1932-6-9 1178 Orange ner coast Santa Ana River 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
  POM2358  Rumex maritimus I. M. Johnston 1918-5-4 526 Orange San Joaquin Hills, Lakes in Laguna canon. 152 Comment
  RSA685938  Rumex salicifolius Fred M. Roberts 2003-3-27 5629 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  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
  UCR258623  Rumex stenophyllus Fred M. Roberts 2014-7-25 7884 Orange South Coast, SAN JOAQUIN HILLS: Upper Laguna Canyon, Laguna Lake 1 (Upper Laguna Lake), north basin, c.a. 5.1 kn ENE summit Signal Hill. Laguna Coast Wilderness Park 113 Comment
  POM49171  Ruppia maritima I. M. Johnston 1924-7-10 s.n. Orange Mouth of Aliso Canyon Comment
  RSA478908  Salicornia bigelovii F. R. Fosberg 1931-8-19 7286 Orange Newport Bay. 0 Comment
  RSA70034  Salicornia bigelovii F. W. Peirson 1924-8-29 5088 Orange 2.5 miles from Balboa on road inland along creek. Comment
  JEPS73723  Salicornia subterminalis L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2046 Orange just s. Bolsa Chica State Park (Salt Marsh (s. end of Bolsa Bay)); Bolsa Bay Comment
  CAS-BOT-BC129738  Salix bonplandiana Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa ana River, Santa Ana Canyon 120 Comment
  LA208637  Salix exigua var. hindsiana Carl B. Wolf; 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave, 1 km W of Hansen Rd, near town of Los Alamitos 2 Comment
  HSC19941  Salix gooddingii J. W. Johnson 1961-3-29 Orange Newport Beach, S side of upper Newport Bay Comment
  RSA366296  Salix gooddingii Fred M. Roberts Jr. 1985-6-12 1906 Orange Irvine: W.R. Mason Regional Park, Culver, 0.2km S University Dr.; 1.7km NE UC Irvine. 17 Comment
  PASA2678  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Rd., near town of Los Alamitos. 7.5 Comment
  LA208724  Salix laevigata Carl B. Wolf; 1932-4-8 2949 Orange Santa Ana Canyon, Rancho Santa Ana, near Santa Ana River, at SE corner of pear orchard in Botanic Garden 120.0 Comment
  RSA4249  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
  UCR239909  Salix laevigata O. F. Clarke 2004-3-22 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  RSA0030858  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  IRVC8760  Salix lasiolepis Charles W. Sexton 1965-2-12 s.n. Orange Newport Beach. Southern Coastal Comment
  LA210190  Salix lasiolepis Lawrence M. Booth; 1932-12-31 1384 Orange Newport Bay Comment
  RSA542510  Salix lasiolepis Fred M. Roberts Jr. 1987-4-21 3388 Orange Aliso Viejo: Aliso Creek, Aliso Creek bike Trail. 3.0 km ENE Moulton Peak. 73 Comment
  RSA750119  Salix lasiolepis A. C. Sanders, Fred M. Roberts 2008-8-7 35985 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  RSA759169  Salix lasiolepis A. C. Sanders 2008-5-28 35444 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  UCR103156  Salix lasiolepis Scott D. White 1997-3-26 4817 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  UCR239223  Salix lasiolepis var. lasiolepis Fred M. Roberts 2012-4-24 7507 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  CAS-BOT-BC126314  Salix sessilifolia Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  CAS-BOT-BC403758  Salpichroa origanifolia E. L. Paddock 1943-5-28 12744 Orange Little Tia Juana Campsite, sunny hills Ranch, Fullerton Comment
  CAS-BOT-BC176841  Salsola australis Ira L. Wiggins 1965-10-27 20306 Orange Along Brea Canyon Road just SW of Los Angeles County Line Comment
  RSA270  Salsola tragus J. T. Howell 1927-7-27 499 Orange Near ranch houses, Rancho Santa Ana 152 Comment
  RSA411335  Salvia apiana F. R. Fosberg 1931-6-21 S 5092 Orange Lower Santiago Canyon. Comment
  UCR193060  Salvia apiana A. C. Sanders, Fred M. Roberts 2008-6-17 35502 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UCR241901  Salvia apiana Fred M. Roberts 2012-4-24 7528 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
  RSA0006683  Salvia apiana J. T. Howell 1927-6-1 5 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  UCR188932  Salvia clevelandii Robert DeRuff 2005-5-25 556 Orange Newport Beach, Upper Newport Bay, draw on bluff south of the Interpretive Center near end of Del Mare Avenue 20 Comment
  JEPS62669  Salvia columbariae Alice King 1908-4-19 Orange Santa Ana Mts. Comment
  RSA434097  Salvia leucophylla M. B. Dunkle 1933-5-30 3567 Orange Carbon Canyon Comment
  UCR131875  Salvia leucophylla J. Mallory, V. McCoy 1995-7-3 6465- 102 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. east of confluence with Santiago Canyon, on a W-facing slope. north of Irvine Lake 300 Comment
  CAS-BOT-BC233669  Salvia leucophylla C. B. Wolf 1943-6-8 11449 Orange Rancho Santa Ana Botanic Garden 198 Comment
  CAS-BOT-BC229979  Salvia mellifera John Thomas Howell 1927-6-8 2460 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 213 Comment
  RSA665  Salvia mellifera J. T. Howell 1927-6-8 59 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  POM4123  Salvia spathacea Lois Clency 1914-07 s.n. Orange Laguna. Comment
  RSA734894  Sambucus mexicana A. C. Sanders 2008-5-28 35431 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UC527394  Sambucus mexicana Carl B. Wolf 1931-7-24 2292 Orange Olinda, lower end of can<yon> Carbon Can. 152 Comment
  UC527395  Sambucus mexicana C. B. Wolf 1931-7-25 2293 Orange above irrigation canal (just n of Mexican houses); Rancho Santa Ana, Santa Ana Canyon 121 Comment
  UCR193031  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-6-17 35517 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA788901  Sambucus nigra Fred M. Roberts 2008-6-12 7039 Orange Lomas de Santiago: Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  CAS-BOT-BC238824  Sambucus nigra subsp. caerulea Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal: UC San Joaquin Freshwater Marsh Reserve 6 Comment
  CAS-BOT-BC238825  Sambucus nigra subsp. caerulea C. B. Wolf 1931-7-24 2292 Orange Ravine at Olinda, lower end of Carbon Canyon 152 Comment
  CAS-BOT-BC238830  Sambucus nigra subsp. caerulea Carl B. Wolf 1931-7-25 2293 Orange Above the irrigation canal, just no. of the Mexican houses, Rancho Santa Ana, Santa Ana Canon [Canyon] 121 Comment
  OBI5973  Sambucus nigra subsp. caerulea Carl B. Wolf 1931-7-25 2293 Orange Upper sonoran; Above the irrigation canal, just N of the Mexican houses, Rancho Satna Ana, Santa Ana cyn 122 Comment
  RSA0073648  Sambucus nigra subsp. caerulea Fred M. Roberts 2012-4-24 7519 Orange San Joaquin Hills: Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak. 167 Comment
  RSA542458  Samolus parviflorus Fred M. Roberts 1987-8-6 3581 Orange San Joaquin Hills: Los Tracos Canyon, 0.9km ESE Pelican Hill. 78 Comment
  IRVC25573  Sanicula arguta Fred M. Roberts 1988-3-17 4211 Orange Aliso Canyon, 3.3km SSE Moulton Peak, Aliso-Wood Canyon Regional Park 61 Comment
  IRVC29096  Sanicula arguta Fred M. Roberts 1989-3-17 4211 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA48925  Sanicula arguta P. A. Munz 1949-5-26 13378 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA732125  Sanicula arguta A. C. Sanders, Fred M. Roberts 2008-4-8 34760 Orange Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  RSA789220  Sanicula crassicaulis Naomi Fraga, Duncan Bell 2009-5-11 2722 Orange Chiquita Trail 762 Comment
  UCR97818  Sanicula crassicaulis Scott D. White 1997-3-28 4832 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA699112  Sanicula menziesii J. Vlahos s.n. Orange Trabuco Canyon Comment
  RSA802286  Sanicula menziesii Keith E. Hoffmaster 1937-4-25 753 Orange Ladd can., Santa Ana Mts. PR8. Comment
  SD173117  Satureja chandleri Juergen Schrenk 2004-5-6 N 3 Orange Santa Ana Mountains, San Juan Trail Comment
  SDSU7979  Satureja chandleri D. F Howe 1947-4-29 1555 Orange San Juan Creek, Santa Ana Mts., Orange Co. Comment
  UCR193064  Schinus molle A. C. Sanders, Fred M. Roberts 2008-6-17 35473 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCSB48097  Schinus molle Roberts, Fred 1981-4-11 Orange Ortega Hwy.; Hwy 74 near San Juan Creek crossing, 5.2 km. E San Juan Capistrano 52 Comment
  UCR43573  Schinus terebinthifolius B. A. Prigge 1983-12-17 5520 Orange Santa Ana Marsh and adjacent lowlands. SE-most part of oil field just north of Pacific Coast Hwy between remnant Santa Ana River channel and dirt road 2 Comment
  UCR191335  Schismus barbatus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34647 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
  RSA0070787  Schoenoplectus acutus CNPS Accuracy Assessment Team 2014-4-30 9268 Orange Peters Canyon Regional Park. Comment
  RSA697524  Schoenoplectus americanus Minor Warne 1934-5-13 s.n. Orange Talbert Drainage. Comment
  UCSB52891  Schoenoplectus americanus Roberts, Fred 1984-10-18 Orange Santa Ana Mtns.: San Juan Canyon, 2.5 km. ENE San Juan Guard Station; 4.0 km. WNW Sitton Peak 310 Comment
  POM1390  Schoenoplectus californicus D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA232214  Schoenoplectus californicus James Henrickson 1970-7-24 4985 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  UCR157695  Schoenoplectus californicus Adrian Wolf 1998-5-15 268 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 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
  RSA716730  Scirpus microcarpus Fred M. Roberts, David E. Bramlet 2004-11-5 6131 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Gato Cyn., tributary to Cristianitos Cyn., 0.23km W Gato Gate. 102 Comment
  RSA788971  Scirpus microcarpus Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49574 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA732149  Scrophularia californica A. C. Sanders, Fred M. Roberts 2008-4-22 s.n. 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
  UCR102628  Scrophularia californica B. G. Pitzer 1997-4-15 3148 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  SEINET12347787  Scrophulariaceae S. A. Thompson, Rawlins, J. E. 1988-8-27 5262 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  RSA594892  Scutellaria tuberosa Fred M. Roberts 1994-4-24 4905 Orange Santa Ana Mountains: San Juan Canyon, south side of CA route 74, 1.2 kilometers SW Lower San Juan Picnic Ground. 390 Comment
  UC1618101  Scutellaria tuberosa Donald G. Nelson 1935-7-6 258 Orange San Juan Canyon Comment
  CAS-BOT-BC240064  Secale cereale Helen D. Geis 1902-3-1 s.n. Orange Foothills Santa Ana Comment
  RSA723967  Secale cereale R. E. Riefner 2004-5-1 04 -154 Orange City of Irvine; Jeffrey Rd. near Bryan Rd. 73 Comment
  RSA15  Selaginella bigelovii John Thomas Howell 1927-7-24 473 Orange Claymine Canyon, near Sierra Peak 167 Comment
  RSA16  Selaginella bigelovii John Thomas Howell 1927-7-28 506 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  RSA301980  Selaginella bigelovii James R. Shevock 1970-12-20 573 Orange Silverado Canyon 579 Comment
  RSA518450  Selaginella bigelovii C. W. Tilforth, Dorothy Tilforth 1977-3-6 1254 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  SFV17365  Selaginella bigelovii J. N. Hogue, J. D. Dilley, D. L. Bishop 1998-4-9 104 .4 Orange Santa Ana Mountains San Juan Canyon, 0.5 miles southwest of Lower San Juan Picnic Area at highway marker 14. 366 Comment
  UC1543091  Selaginella bigelovii Donald G. Nelson 1935-4-6 238 Orange e San Juan Capistrano (just s of boundary of Cleveland Nat'l Forest, side canyon with stream, branching n from summer ranger station on main hwy. up San Juan Canyon); Santa Ana Mts., San Juan Canyon Comment
  SEINET7067533  Senecio flaccidus A. G. Vestal 1947-6-12 s.n. Orange Santiago Creek Valley north of Santa Ana. Coordinate datum: NAD27. UTM Zone 11, 418529mE, 373676mN. Comment
  IRVC901  Senecio flaccidus var. douglasii E. Cowper 1965-4-9 Orange [Newport] Back Bay. Newport Beach 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
  SEINET4103054 Image available Senecio sylvaticus O. M. Clark 1947-1 14374 Orange Island in Crescent Bay. Comment
  RSA731939  Senecio vulgaris Fred M. Roberts, Sandy Leatherman 2007-11-27 6696 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  IRVC905  Senecio vulgaris I. L. Wiggins 1966-3-31 20569 Orange Fullerton; associated road 200m S of Imperial Highway on shoulder. Southern Coastal Comment
  RSA4818  Sesuvium verrucosum James Snow 1932-1 s.n. Orange Bryant Ranch: Near Long Beach. Station # 4. Plant # 1. Comment
  SEINET238939 Image available Sesuvium verrucosum A. C. Sanders, D. Malueg; K. D. Jones 2000-1 23334 Orange Pacific Coast: Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 0 Comment
  CAS-BOT-BC438200  Sesuvium verrucosum Carl B. Wolf 1932-7-7 3847 Orange Bryant Ranch, Bixby Ave., field 100 ft. N. of Rd. 7/10 mi. W. of Hansen Rd; 100 ft. N. & 2/10 mi. W. of S.E. corner of N.E.40 of N.W.160 of Sect. 34. T4S R11W. 7 Comment
  CDA2442  Setaria megaphylla R. E. Riefner Jr. 2006-11-19 06 -683 Orange City of San Juan Capistrano, San Juan Creek at La Novia Avenue. Comment
  CAS-BOT-BC243591  Setaria parviflora Ira L. Wiggins 1965-10-24 20294 Orange Orange grove on S side of Yorba Linda Blvd. 1/4 mi. E of State College Blvd., Fullerton Comment
  CAS-BOT-BC243594  Setaria parviflora Helen D. Geis 1902-1-1 560 Orange Unspecified Comment
  POM1043  Setaria parviflora Clare B. Hardham s.n. Orange Laguna Beach, Orange County Comment
  RSA483330  Setaria parviflora Albert J. Perkins s.n. Orange Santa Ana. Comment
  RSA432756  Sidalcea malviflora Christopher Davidson 1977-5-18 5635 Orange Cleveland National Forest, Falcon campground. 1006 Comment
  UCSB47611  Sidalcea malviflora Roberts, Fred 1980-5-3 Orange 0.1km NE Falcon Group Camp, Santa Ana Mtns. 1012 Comment
  RSA0040089  Sidalcea neomexicana Sandra Leatherman 2014-3-18 2014 -1 Orange Santa Ana Mountains region: South Orange County; northeast of Antonio Parkway and Sendero Way; adjacent to the Chiquita Reclamation Plant access road. 76 Comment
  IRVC25469  Silene gallica Fred M. Roberts 1987-4-21 3778 Orange Aliso Creek, Aliso Creek Bike Trail, 3.0km ENE Moulton Peak, Aliso Viejo 73 Comment
  RSA603348  Silene gallica Scott D. White 1997-6-12 5326 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca. 2-4 miles E of I-15/Highway 74 junction. 46 Comment
  RSA732119  Silene gallica A. C. Sanders, Fred M. Roberts 2008-4-8 34730 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCSB47971  Silene gallica Roberts, Fred 1980-2-17 Orange Dana Bluffs; along Scenic Drive Rd.; NW and above Dana Point Harbor, Dana Point 58 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
  RSA438884  Silene laciniata subsp. major F. R. Fosberg 1931-6-2 748 Orange Silverado Canyon, Santa Ana Mountains. Comment
  RSA439886  Silene laciniata subsp. major M. B. Dunkle 1933-5-30 3571 Orange Carbon Canyon Comment
  RSA696563  Silene laciniata subsp. major Minor Warne 1934-5-19 s.n. Orange Live oak Canyon. Comment
  RSA647891  Silybum marianum Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-1 12 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  CAS-BOT-BC75037  Sisymbrium altissimum John Thomas Howell 1927-6-6 2448 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  IRVC1174  Sisymbrium irio L. Burns 1965-3-15 Orange Corona del Mar, Bayside Dr. Newport Beach Comment
  IRVC19418  Sisymbrium irio R. L. Allen 1983-2-12 A633 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  RSA792476  Sisymbrium irio Justin M. Wood 2011-2-28 3267 Orange South Coast: Santa Ana River, marsh just upstream of Pacific Coast Highway. Plants collected throughout the marsh and along the adjacent bike path. 0 Comment
  CAS-BOT-BC75235  Sisymbrium irio Ira L. Wiggins 1965-10-7 20363 Orange Vacant lot between State College Boulevard and Troy High School campus, Fullerton. Comment
  IRVC1190  Sisymbrium orientale D. Frees 1965-3-27 Orange Newport Beach; East Bluffs. Southern Coastal Comment
  IRVC17042  Sisymbrium orientale R. Nesheim 1965-4-30 Orange Bayside Dr. Newport Beach Comment
  UCSB48238  Sisymbrium orientale Roberts, Jr., Fred 1981-5-3 Orange Santa Ana Mtns.; Hot Springs Canyon, just below Lazy W Ranch, 1.6 km. NNE San Juan Guard Station 249 Comment
  HSC13926  Sisyrinchium bellum S. M. Clapp 1966-4-10 32 Orange 4 mi. into Black Star Canyon 183 Comment
  RSA732226  Sisyrinchium bellum A. C. Sanders, Fred Roberts 2008-4-22 35029 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  SD233240  Sisyrinchium bellum Naomi Fraga 2009-5-11 2716 Orange Peninsular Ranges: Santa Ana Mountains region: San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 911 Comment
  HSC13908  Sisyrinchium bellum J. J. Wagoner 1965-4-11 19 Orange 4 mi. N of Modjeska Canyon near Irvine Lake along the Irvine road 152 Comment
  OBI2801  Sisyrinchium bellum T. Mills 1967-4-30 56 Orange Irvine Park 213 Comment
  IRVC18594  Sitanion jubatum Karlin G. Marsh 1980-8-13 s.nn. Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  RSA79906  Solanum americanum F. W. Peirson 1924-2-9 4523 Orange Between Wintersberg and the sea. Comment
  RSA5935  Solanum americanum Carl B. Wolf 1932-7-7 3837 Orange Bryant Ranch, along drainage ditch on Bixby Ave.; 100 ft. W. of Hansen Rd.; 100 ft W of corner of NE 1/4 9 Comment
  UCSB48043  Solanum americanum Roberts, Fred 1981-9-26 Orange Newport Beach: Pacific Coast Highway, 0.3km W Newport Blvd.; 0.4km SE Bench Mark 10 3 Comment
  RSA184115  Solanum douglasii I. L. Wiggins 1965-11-6 20352 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA263702  Solanum douglasii E. W. Lathrop 1974-6-27 7414 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA647960  Solanum douglasii Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-1 7 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  RSA650636  Solanum douglasii Daniel Truong 1991-5-13 29 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  UC1292575  Solanum douglasii C. L. Hitchcock, C. V. Muhlick 1964-3-17 23063 Orange 8 mi e of Yorba Linda (Santa Ana Canyon); Santa Ana Canyon Comment
  UCR137188  Solanum douglasii M. B. Dunkle 1933-3-5 3093 Orange Southern Coast, San Juan Canyon 305 Comment
  RSA422440  Solanum douglasii Claire Kibbe 1936-07 19966 Orange Santa Ana Canyon. Comment
  UCSB52472  Solanum umbelliferum Roberts, Fred 1983-1-7 Orange Laguna Beach: Park Canyon along west flank of Temple Hill, 1.7km NE Thurston High School; 1.7km SE Bench Mark 104 205 Comment
  CHSC13479  Solanum xanti T. N. Casale 1974-4-11 4 Orange At base of road shoulder, ca. 5.1 mi ne of the Mission San Juan Capistrano on Hwy 74. 176 Comment
  IRVC26673  Solanum xanti Mark A. Elvin 2004-4-4 3233 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA735963  Solanum xanti var. xanti Scott D. White, Justin M. Wood 2008-4-24 11911 Orange Chino Hills: SCE powerline corridor, SE of Carbon Canyon Rd and N of Chino Hills State Park. 366 Comment
  RSA0051386  Solidago californica Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49600 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA0055824  Solidago californica Doris Bowers 1970-10-26 1709 Orange Black Star Can. Indian site 610 Comment
  CAS-BOT-BC374663  Sonchus oleraceus Ira L. Wiggins 1966-5-25 20668 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton Comment
  IRVC923  Sonchus oleraceus B. Mawdsley 1965-3-30 Orange east bluff at Mar Vista. Newport Beach Comment
  UCR223419  Sonchus oleraceus Dick Newell, Don Millar 2011-3-1 065 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  UCR237816  Sonchus oleraceus Mark A. Elvin 2003-2-2 2290 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA647892  Sonchus oleraceus Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 30 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 243 Comment
  RSA697068  Sonchus oleraceus Kenneth Beard 1934-02 s.n. Orange Walnut grove on Freeman Street, Santa Ana. Comment
  UCD136209  Sonchus oleraceus Ira L. Wiggins 1965-11-6 20334 Orange west side of Atwood. Comment
  SEINET998621  Sorghum bicolor R. E. Riefner Jr. 2005-1 05 -710 Orange South Coast: Irvine, Irvine Blvd. at The Groves RD. (Tustin 7.5' Q) 84 Comment
  IRVC1831  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  JEPS73760  Sorghum halepense L. M. Booth 1932-7-18 1265 Orange Newport Bay, Costa Mesa Comment
  SD383  Sorghum halepense none given VII, 1915 71 Orange Vic. Santa Anna Comment
  UC729939  Sorghum halepense Carl B. Wolf 1932-6-13 3724 Orange Malvern & Nicholas Aves. Fullerton 53 Comment
  HSC24430  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2.5 mi. NW of Huntington beach along south channel of Inner Bolsa Bay, Bolsa Chica Salt Marsh 0 Comment
  POM146217  Spartina foliosa F. M. Reed 1927-11-25 5676 Orange Anaheim Landing Comment
  POM47952  Spartina foliosa I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA483174  Spartina foliosa Anonymous 1914-7-6 31 Orange Growing in salt marsh at Newport Comment
  UCD92997  Spartina foliosa F. M. Reed 1927-11-23 5676 Orange at Anaheim. Comment
  SEINET10602937  Spartina foliosa James S. Henrickson 1970-7-24 Henrickson 5024 Orange 2 1/2miles NW of Huntington Beach along south channel of Inner Bolsa Bay, adjacent to Pacific Coast Hy. in Bolsa Chica Salt Marsh; locally abundant & forming pure stand in stagnant shallow salt water channel margin; to 3ft. high. sea level Comment
  RSA652717  Spartium junceum Jack D. Ingwersen 1962-5-2 s.n. Orange Anaheim Comment
  UCR99892  Spergularia Scott D. White 1993-3-5 1123 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA0097854  Spergularia bocconi Steve Boyd, Timothy S. Ross 1992-5-19 7431 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail in Aliso Canyon. 335 Comment
  RSA0097838  Spergularia macrotheca F. W. Peirson 1923-3-26 4289 Orange Canada Salada. 0 Comment
  CAS-BOT-BC390857  Spergularia marina Frank W. Peirson 1924-5-31 4658 Orange Laguna Canon [Canyon] Comment
  RSA0098518  Spergularia marina D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  RSA0098537  Spergularia marina I. M. Johnston 1924-8-29 s.n. Orange 3 miles north of Balboa. Comment
  RSA47078  Spergularia rubra Albert J. Perkins 1926-4-27 14728 Orange SAnta Ana, Mr. Perknis yard Comment
  RSA478077  Spergularia rubra Albert J. Perkins 1922-5-27 s.n. Orange Dr. Whi...(?) garden Comment
  HSC92517  Spergularia salina D. Atwood 1993-3-29 17734 Orange Huntington Beach along Beach Blvd., 0.5 mi. N of the beach Comment
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Jul 8 2010
  UCR186146  Sphaeralcea emoryi var. emoryi Robert DeRuff 1994-4-24 452 Orange Southern Coast, Newport Beach, Newport Back Bay, at top and bottom of a draw between 23rd St. and the Delhi Channel 5 Comment
  IRVC26740  Spiloxene serrata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3160 Orange UCI Arboretum Southern Coastal 15 Comment
  CAS-BOT-BC236656  Sporobolus airoides Carl B. Wolf 1936-4-22 7771 Orange East of Los Alamitos, along Hansen Road, 100 yds. north of Cerritos Ave. 15 Comment
  UCR191450  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-4-8 34752 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UCLA70972  Stachys ajugoides var. rigida C. Epling, H. Lewis Jun 1940 Orange near Summit (Ortega Road); Santa Ana Comment
  UCR240111  Stachys rigida Dick Newell, Don Millar 2012-5-15 251 Orange South Coast, Newport Beach, on Buck Gully trail, 0.43 mi. SW of San Joaquin Hills Road 137 Comment
  RSA734666  Stachys rigida subsp. quercetorum A. C. Sanders, Fred M. Roberts 2008-6-17 35488 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff s Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261. 357 Comment
  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
  SEINET9332031  Stachys rigida var. quercetorum Unknown 2004-5-4 007 Orange Crystal Cove State Park Comment
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Oct 26 2017
  RSA131400  Stachys stebbinsii E. K. Balls 1958-6-27 23281 Orange 4.4 miles from Silverado (gate), Silverado Canyon, Santa Ana Mountains. 1021 Comment
  RSA452250  Stanleya pinnata Claire Kibbe 1936-07 19961 Orange Santa Ana Canyon. Comment
  IRVC370  Stellaria media I. L. Wiggins 1965-6-5 20329 Orange north side of Chapman Ave. near Kraemer Rd.; orange grove, common to very abundant beneath trees, full sun to partial shade. Placentia Comment
  RSA696187  Stellaria media Keith E. Hoffmaster 1934-1 s.n. Orange Santa Ana. Comment
  POM7319  Stenotaphrum secundatum Fred M. Roberts, Sandy Leatherman 2007-11-27 6669 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
  UC1930078  Stenotaphrum secundatum Scott D. White, Matt Carlton 2003-11-20 9867 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 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
  UCR222876  Stephanomeria diegensis T. B. Salvato 2010-10-27 5129 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  UCR224153  Stephanomeria exigua subsp. exigua Fred M. Roberts 2008-7-10 7065 Orange South Coast, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west-northwest of Marine Institute, Dana Point Harbor 65 Comment
  UCR192109  Stipa coronata A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35310 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  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
  SD144498  Stipa miliacea Scott D. White 1997-3-28 4826 Orange Santa Ana Mtns: Above Modjeska Canyon: along Harding Cyn Truck Trail, near Modjeska Cyn Rd and wash crossing. 424 Comment
  LA9459  Stipa pulchra LeRoy Abrams; 1903-4-18 3269 Orange Trabuco canyon, Capistrano 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
  RSA6315  Stuckenia pectinata L. T. Street, Williams 1919-5-4 2690 Orange Laguna Lakes. [now Big Laguna Lake, San Diego Co.] Comment
  CHSC116479  Styrax officinalis var. fulvescens R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49686 Orange Northern Santa Ana Mountains: Sierra Peak. [ locality information from field label; note on newspaper 'near Beek's Place, Skyline Drive crest, MDT Trail' (Main Divide Truck Trail] 899 Comment
  POM301519  Styrax redivivus J. C. Roos 1937-5-10 2326 Orange East of San Juan Capistrano. Comment
  RSA535089  Styrax redivivus Steve D. Boyd, Orlando Mistretta 1991-5-9 6205 Orange Santa Ana Mountains, crest of range, S of Oak Flats at Beek's Place on Main Divide Truck trail at junction with Black Star Canyon Road. 854 Comment
  RSA753416  Styrax redivivus Eleanor Carter 1998-5-25 s.n. Orange At the summit of Sitton Peak, just N of San Mateo Wilderness. 998 Comment
  POM122884  Suaeda calceoliformis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA438601  Suaeda calceoliformis F. R. Fosberg 1930-7-10 53195 Orange Anaheim Landing. [Los Angeles Co. on label] 1 Comment
  UC217430  Suaeda calceoliformis H. M. Hall 1920-10-4 11221 Orange Cypress Comment
  RSA5866  Suaeda calceoliformis C. B. Wolf 1932-9-13 4020 Orange Bryant Ranch. 3/10 miles W of Los Alamitos Blvd.700 ft. south of Bryant Ave., (800 ft. east & 700 ft. south of NW corner of SW 1/4 sec. 30 T4S R11W) 7 Comment
  RSA758778  Suaeda esteroa Anstruther Davidson 1914-10-1 2987 Orange Newport Comment
  SD247403  Suaeda esteroa R. E. Riefner Jr. 2012-11-6 12 533 Orange City of Newport Beach, Newport Bay, North Star Beach near Newport Aquatic Center, White Cliffs Dr./N. Star Lane. 2 Comment
  CAS-BOT-BC110409  Suaeda taxifolia Allan C. Keller 1937-11-26 s.n. Orange Santa Ana River Bridge west of Newport Beach on U.S. Highway Alternate 101. 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
  POM122880  Suaeda taxifolia Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA234501  Suaeda taxifolia James Henrickson 1970-7-25 5028 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along Pacific Coast Hwy. 0 Comment
  RSA438591  Suaeda taxifolia E. A. Purer 1932-03 15767 Orange Coast Highway at Huntington Beach Comment
  UC284809  Suaeda taxifolia P. A. Munz 1923-4-1 7320 Orange 2 mi nw Laguna (Laguna Beach); Laguna Beach Comment
  UC536967  Suaeda taxifolia Lawrence M. Booth 1932-6-29 1232 Orange Newport Bay Comment
  UCSB36532  Suaeda taxifolia Ferren, Wayne; Whitmore, S. 1980-8-27 Orange On crest of berm running NW of Bayside Rd., Newport Backbay, Newport Beach Comment
  IRVC19706  Symphoricarpos mollis Karlin G. Marsh 1983-7-5 Orange Bonito Canyon Reservoir; open grassy field. Irvine Comment
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Oct 21 2013
  RSA751286  Symphoricarpos mollis A. C. Sanders, Fred M. Roberts 2008-7-3 35671 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  RSA752319  Symphoricarpos mollis Fred M. Roberts 2008-5-20 7132 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Cyn., 0.8 km NW Bolero Spr. and 3.1 km WNW Bolero Lookout. Irvine Ranch Conservancy. 467 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
  RSA789199  Symphyotrichum defoliatum Naomi Fraga, Duncan S. Bell, Sarah J. De Groot 2009-9-11 3155 Orange Santa Ana Mountains, Blue Jay Campground. 910 Comment
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Jan 29 2015
  SD87597  Symphyotrichum lanceolatum subsp. hesperium F. W. Peirson 1924-10-19 5241 Orange Wintersberg Comment
  UC356890  Symphyotrichum lanceolatum var. hesperium L. M. Booth Orange Newport Beach Comment
  UCR119307  Tauschia arguta R. E. Riefner Jr. 2000-3-18 20- 135 Orange Cleveland National Forest. Ridge-top east of Fremont Canyon and west of Hidden Valley 732 Comment
  RSA97412  Tauschia parishii F. W. Peirson 1923-5-6 3501 Orange open area at summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  RSA554632  Tetradymia comosa Scott D. White 1992-9-29 867 Orange Vicinity of City of Brea, immediately N of Carbon Canyon Road and E of Placentia Avenue, +/- 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  UCR193075  Tetragonia tetragonoides A. C. Sanders, Fred M. Roberts 2008-6-17 35482 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA13751  Tetragonia tetragonoides L. C. Wheeler 1934-1-14 2354 Orange Laguna Beach, edge of sandy beach. 2 Comment
  SD233352  Thalictrum fendleri var. polycarpum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49823 Orange Santa ana Mountains: Trabuco Canyon. Comment
  UCR98299  Thalictrum fendleri var. polycarpum Scott D. White 1997-3-28 4829 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA786316  Thalictrum polycarpum Keith E. Hoffmaster 1936-3-15 700 Orange Santiago Canyon, Santa Ana Mts. Comment
  RSA797913  Thalictrum polycarpum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49823 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA30451  Thelesperma megapotamicum E. L. Paddock 1942-7-21 11290 Orange Union Water Co. property just N. of Yorba Cemetary Comment
  RSA732154  Torilis nodosa A. C. Sanders, Fred M. Roberts 2008-4-22 35023 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  RSA688870  Torilis nodosa Fred M. Roberts 2003-5-1 5672 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
  RSA453  Toxicodendron diversilobum J. T. Howell 1927-9-24 740 Orange Santa Ana Botany Garden 152 Comment
  RSA688874  Toxicodendron diversilobum Fred M. Roberts 2003-5-1 5665 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
  UCD169809  Toxicoscordion fremontii R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49661 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 430 Comment
  SBBG128685  Toxicoscordion fremontii R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49661 Orange northern Santa Ana Mtns, Comment
  UCR109776  Tribulus terrestris R. D. Goeden, Don W. Ricker 1965-7-28 s.n. Orange Santa Ana River Valley, Santa Ana, corner of Harvard St. and Anne St., near S.A. River and Centennial Park 21 Comment
  CAS-BOT-BC220817  Trichostema lanatum Helen D. Geis 1902-1-1 519 Orange Santa Ana Comment
  RSA651050  Trichostema lanatum Edward Kai 1970-4-30 s.n. Orange El Toro Marine Base - open waste [field] - Below 2000' 610 Comment
  RSA0051416  Trichostema lanatum R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49681 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  RSA447109  Trichostema lanatum Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. 762 Comment
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Jun 29 2015
  UCSC003057  Trichostema lanatum Peter Kamb 1948-6-19 1093 Orange Santa Ana Mountains; Holy Jim Canyon Comment
  RSA160554  Trichostema lanceolatum J. D. Olmsted 1959-8-26 828 Orange Along road south of mouth of Black Star Canyon north of Rock Crushing plant 305 Comment
  IRVC18692  Trifolium albopurpureum Karlin G. Marsh 1981-5-1 s.n. Orange Main Divide [Truck] Trail east of Pleasants Peak. Santa Ana Mountains Comment
  UC1543242  Trifolium ciliolatum Donald G. Nelson 1935-4-18 312 Orange n Fulerton (hills, near orange orchard) Comment
  RSA734801  Trifolium gracilentum A. C. Sanders, Fred M. Roberts 2008-5-6 35248 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
  IRVC16687  Trifolium gracilentum var. gracilentum J. B. Anderson 1966-4-9 528 Orange San Joaquin Hills; with slight slope to Bonita Canyon; low spots along road. Southern Coastal Comment
  RSA627748  Trifolium hirtum Scott D. White 1998-3-16 6208 Orange Univ. of Calif. Irvine Campus: Site of proposed Research Park. Southwest of main capmus circle ca. halfway between Berkeley Ave. and new freeway (Bonita Cyn.). 37 Comment
  POM8803  Trifolium microcephalum A. Hanson 1920-4-17 s.n. Orange Laguna Hills Comment
  RSA0013957  Trifolium microcephalum Fred M. Roberts 2008-4-24 6932 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
  RSA734019  Trifolium microcephalum A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34613 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 280 Comment
  RSA749522  Trifolium microcephalum Fred M. Roberts 2008-4-8 6847 Orange Lomas de Santiago: Loma Ridge, Upper Dripping Springs Cyn., 1.0 km NE Bee Peak, Irvine Ranch Conservancy. 458 Comment
  POM9192  Trifolium microcephalum Philip A. Munz, R. D. Harwood 1920-4-25 3720 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  IRVC28637  Trifolium obtusiflorum Mark A. Elvin, A. C. Sanders 2005-9-2 4492 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA591828  Trifolium obtusiflorum E. W. Lathrop 1973-6-28 7448 Orange Silverado Canyon, Santa Ana Mts, Cleverland National Forest, Trabuco District 366 Comment
  RSA629048  Trifolium willdenovii Valerie L. Soza, LeRoy Gross 1999-6-10 524 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1554 Comment
  RSA734802  Trifolium willdenovii A. C. Sanders, Fred M. Roberts 2008-5-6 35249 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
  UCR119301  Trifolium willdenovii R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 458 Orange Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 473 Comment
  UCR192635  Trifolium willdenovii A. C. Sanders, Fred M. Roberts 2008-4-8 34753 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  POM8716  Trifolium willdenovii Philip A. Munz 1920-4-11 3811 Orange Santa Ana River Canyon 305 Comment
  POM9120  Trifolium willdenovii Philip A. Munz, R. D. Harwood 1920-4-24 3772 Orange Sierra [Freemont] Canyon, Santa Ana Mountains. 366 Comment
  POM9231  Trifolium willdenovii Philip A. Munz, R. D. Harwood 1920-4-25 3716 Orange Shady hillside by road in Silverado Canyon, Santa Ana Mts. 549 Comment
  CAS-BOT-BC451772  Triglochin maritima Peter H. Raven 1957-9-28 11380 Orange At north limits of Surfside Comment
  UC1532994  Triglochin maritima Robert F. Thorne 1975-4-6 45580 Orange head Newport Bay; head of Newport Bay Comment
  UCSB3962  Triglochin maritima Keefe, Joseph 1967-3-26 Orange South edge of Newport Bay, on Back Bay Drive, 2.0 miles northeast of junction with Jamboree Drive, Corona del Mar 2 Comment
  RSA734689  Triticum aestivum A. C. Sanders, T. B. Salvato 2008-5-13 35349 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA791489  Typha angustifolia Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49636 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UCR247912  Typha domingensis Fred M. Roberts 2012-7-18 7651 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, west end, just east of north terminus of Poppy Street and 2.2 km WNW summit of Pelican Hill 39 Comment
  RSA232210  Typha latifolia James Henrickson 1970-7-24 4983 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
  UCR194998  Urtica dioica A. C. Sanders, Fred M. Roberts 2008-8-7 36005 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA234535  Urtica dioica subsp. holosericea James Henrickson 1970-7-24 4991 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
  UCR230240  Vachellia farnesiana var. minuta Dick Newell, Don Millar 2011-3-22 091 Orange Peninsular Range; Santa Ana Mtns., Irvine Regional Park, city of Orange 181 Comment
  UC1543206  Venegasia carpesioides Donald G. Nelson 1935-4-6 261 Orange e San Juan Capistrano (200-300 ft below main highway about 4 mi from summit, San Juan Canyon); San Juan Canyon Comment
  SD143706  Verbascum virgatum Scott D. White 1996-12-20 4635 Orange Above Modjeska Canyon. Proposed water tank site. 424 Comment
  RSA688189  Verbena lasiostachys var. lasiostachys Scott D. White 1998-10-15 7183 Orange Yorba Linda: 1/2 mile south of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development. 152 Comment
  RSA725535  Verbena lasiostachys var. lasiostachys Fred M. Roberts, Robert L. Allen 2007-9-28 6611 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  RSA655  Verbena scabra J. T. Howell 1927-10-29 772 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA731930  Veronica anagallis-aquatica Fred M. Roberts, Sandra Leatherman 2007-11-27 6680 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 Comment
  SD245495  Veronica anagallis-aquatica Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49577 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  POM17443  Veronica peregrina var. xalapensis Philip A. Munz 1923-4-1 6908 Orange Laguna Lakes 61 Comment
  RSA666091  Veronica peregrina var. xalapensis Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5431 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 226 Comment
  RSA650093  Vicia americana T. Sargent 1959-4-19 s.n. Orange Carbon Canyon 1m. S. of La Vida Springs. Comment
  UCR191449  Vicia villosa A. C. Sanders, Fred M. Roberts 2008-4-8 34761 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  NY42731  Vinca major J. B. Walker 1995-3-9 1238 Orange Cleveland National Forest, Trabuco district, at junction of USFS Rd 6S10 and San Juan Trail 100 Comment
  UCR119293  Viola pedunculata R. E. Riefner Jr. 2000-4-27 20- 390 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running south from Baker Canyon Road to Silverado Road 335 Comment
  RSA516432  Viola pedunculata Walter Wisura, Bart O'Brien, T. Hayduk 1990-5-2 4400 Orange Along Forest Road 3SO4 fr Ortega Hwy to Santiago Peak, Santa Ana Mtns. Comment
  UCSB4189  Viola pedunculata Wedberg, H. 1958-3-29 Orange Grassy field 4.3 miles east of San Juan Capistrano on Hwy 74 Comment
  RSA798539  Viola sheltonii Robert F. Thorne, E. W. Lathrop 1977-5-18 49737 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  RSA0121736  Vitis girdiana Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6058 Orange Santa Ana Mtns: Holy Jim Cyn.: Holy Jim Trail, 3.5km SE summit of Santiago Peak. 610 Comment
  UCR92411  Vitis girdiana F. M. Reed 1933-9-27 8111 Orange Banks of Santa Ana River opposite Yorba Linda 91 Comment
  RSA0121737  Vitis girdiana Fred M. Roberts 1985-6-7 1865 Orange Santa Ana Mtns.: San Juan Canyon, Hwy 74, 2.6 km SW Lower San Juan Picnic Ground. 290 Comment
  RSA0119676  Volutaria tubuliflora Fred M. Roberts 2015-4-16 7939 Orange Newport Beach: Big Canyon, north side, vicinity of Big Canyon Trail, 0.5 km W Corona Del Mar High School. 2 Comment
  RSA758012  Vulpia microstachys D. E. Bramlet, Jim Harrison 2008-4-3 4157 B Orange South Bee Cyn. Bowerman landfill site, 1.2km south of Bee Cyn access road, & 122n west of the active landfill. Comment
  RSA708817  Vulpia microstachys var. pauciflora Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6215 Orange Main Divide Road, ridge between Silverado and Bixby Canyons, coastal slope, 0.46km (air) S Bald Peak. 1203 Comment
  RSA773499  Vulpia octoflora Fred M. Roberts 1999-5-14 5219 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout 451 Comment
  RSA758891  Vulpia octoflora var. octoflora A. C. Sanders, Fred M. Roberts 2008-4-22 35004 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
  IRVC196  Woodwardia fimbriata C. Cowper 1965-4-18 Orange Trabuco Canyon. Santa Ana Mountains Comment
  CLARK-A1528-921  Xanthium spinosum Patricia A. Andrews 1975-6-26 5906 Orange Capistrano Bay Beach 9 Comment
  UCR210365  Xanthium strumarium T. B. Salvato, Billy Deane 2006-10-16 1925 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  CAS-BOT-BC383748  Xanthium strumarium M. A. Bradshaw 1901-10-1 s.n. Orange Orange Comment
  RSA5940  Xanthium strumarium C. B. Wolf 1932-7-7 3836 Orange Bryant Ranch ; On Bixby Ave. 2/10 mi. W of Hansen Road. (2/10 mi. W of SE corner of NE 1/4 of NE 1/4 of sec. 34 T4S R11W) 9 Comment
  SEINET11808326  Xanthium strumarium S. A. Thompson, Rawlins, J. E. 1988-1 5260 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  IRVC26517  Yucca Mark A. Elvin 2004-5-22 3457 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR241045  Yucca aloifolia Robert DeRuff 1986-8-1 344 Orange South Coast, Upper Newport Bay, along path between 23rd St. and Mariners Dr. 2 Comment
  RSA731983  Yucca whipplei var. whipplei A. C. Sanders, Fred M. Roberts 2008-4-8 34770 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  RSA731926  Zannichellia palustris Fred M. Roberts, Sandy Leatherman 2007-11-27 6684 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 Comment
  CAS-BOT-BC454216  Zannichellia palustris John Thomas Howell 1927-8-13 2988 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  UCSB47999  Zeltnera venusta Roberts, Fred 1980-6-29 Orange Santa Ana Mtns; Viejo Canyon; 0.4km N Calif Rte 74; 2.2km ENE San Juan Guard Station 103 Comment
  SBBG128683  Zeltnera venusta R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49576 Orange San Juan Cyn at Lower Picnic Camp, just below Ortega Hwy (74); Santa Ana Mtns Comment
  SD245384  Zeltnera venusta R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49576 Orange Sana Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. Comment
  POM180498  Zostera marina Le Roy Abrams 1917-6-23 6570 Orange Balboa Comment
  RSA684237  Zostera marina E. Yale Dawson 1948-5-30 5104 a Orange slough opposite Anaheim Landing Comment



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