Search Results — 2000 specimen records retrieved (1619 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA1554  Abronia maritima J. T. Howell 1928-7-10 1087 Orange Capistrano Beach. 0 Comment
  RSA585489  Abronia maritima R. E. Riefner Jr. 1994-5-22 94 -380 Orange San Mateo Point, W of RR tracks, just N of Orange Co. line marker. Comment
  RSA678453  Abronia maritima Valerie L. Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1116 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  CAS-BOT-BC229407  Abronia umbellata David D. Keck 1933-9-21 2535 Orange Sunset Beach Comment
  HSC16138  Abronia umbellata B. Francis 1964-5-2 41 Orange Newport Beach Comment
  UCR16336  Abronia umbellata subsp. variabilis Steve Kulju 1974-5-27 s.n. Orange South Coast, Sunset Bay, 1 mile SE of the city of Seal Beach on State Hwy 1 5 Comment
  RSA0126616  Acacia Fred M. Roberts 2012-4-27 7497 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  CDA25889  Acacia saligna Mark A. Elvin, D. G. Kelch, B. S. Nerhus, Patricia Iluore 2006-12-9 5325 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  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
  UCR231359  Acer macrophyllum A. C. Sanders, Kent Beaman 2011-9-27 39908 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail, 3.4 km NNW (340 deg. ) of Santiago Peak 1088 Comment
  IRVC24997  Achillea millefolium var. californica Fred M. Roberts, H. Camp & R. Fisher 1986-6-20 3020 Orange San Joaquin Freshwater Marsh, near Campus Dr., 1.7km NNW UC Irvine campus center, Irvine 2 Comment
  RSA562739  Achillea millefolium var. californica Steve Boyd 1992-5-20 7455 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09), 305 Comment
  RSA797665  Achnatherum coronatum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49769 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCD50307  Achnatherum coronatum Elizabeth Wilson 1929-6-28 s.n. Orange Cleveland National Forest. Orange and Riverside County. Comment
  UCD55576  Achnatherum coronatum Beecher Crampton 1963-5-7 6790 Orange Ca. 11 miles northeast of San Juan Capistrano, State Hwy. 74. Lower San Juan Canyon, Santa Ana Mountains. Comment
  LA48030  Acmispon glaber var. glaber A. M. Johnson; 1927-12-30 2760 Orange Laguna Comment
  RSA0014075  Acourtia microcephala Fred M. Roberts 2008-5-27 7005 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., c.a. 0.2km beyond Hicks Cyn., Gate, 2.2km WNW Bee Peak, Irvine Ranch conservancy 213 Comment
  SEINET8077122 Image available Acourtia microcephala A. C. Sanders, Fred M. Roberts 2008-6-17 35485 Orange Peninsular Range; Santa Ana Mtns.; Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  UCR230828  Acourtia microcephala Dick Newell, Don Millar 2011-6-14 173 Orange South Coast, San Joaquin Hills, Serrano Ridge on west side of Laguna Canyon 260 Comment
  UC1127728  Adenostoma fasciculatum H. E. Norton 1931-3-23 48 Orange 1 1/2 mi. s. Santa Ana Canyon (Plot #37, Corono #2); Corona Quad. Comment
  UC1544779  Adenostoma fasciculatum D. S. Seigler and E. Rodriguez 1978-5-13 11003 Orange Trabuco Canyon Comment
  RSA542407  Adenostoma fasciculatum var. fasciculatum Fred M. Roberts 1988-4-8 3895 Orange Lomas de Santiago: Loma Ridge, Central Linestone Canyon, 4.1 kilometers NNW Bolero Lookout. 323 Comment
  IRVC22503  Adiantum jordanii Fred M. Roberts 1985-5-1 1693 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  POM122866  Adiantum jordanii Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon Comment
  RSA0014998  Adiantum jordanii Fred M. Roberts 2008-5-14 6960 Orange Lomas de Santiago: Loma Ridge, upper Bee Flat Canyon below Loma Ridge Rd., 1.3 km N Bee Peak and 5.4 km NW Bolero Lookout, Irvine Ranch Conservancy. 337 Comment
  RSA728658  Aeonium haworthii R. E. Riefner 2006-8-26 06 -377 Orange City of Laguna Beach, bluffs along Aliso Creek, N slope of Aliso Peak, Pacific Coast Hwy., E. of Aliso Beach. Aliso Beach County Park. 12 Comment
  RSA728669  Agave attenuata R. E. Riefner 2007-2-18 07 -67 Orange City of Rancho Santa Margarita, Tijeras Canyon, N ca. 0.5 mi from Meandering Trails Rd. on Antonio Pwky. 221 Comment
Read comments
Feb 28 2016
  RSA759121  Ageratina adenophora Robt. Allen 2007-7-15 s.n. Orange San Juan Canyon, Ortega Hwy, circa 1.2 road mi E of San Juan Fire Station 308 Comment
  UCR150907  Agoseris retrorsa Valerie Soza, LeRoy Gross 1999-6-10 513 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  SEINET3916500  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-7-16 35851 Orange Penninsular Range; Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon.; 0 325 Comment
  UCD53225  Agrostis pallens R. Tofsrud 1951-4-1 s.n. Orange Orange-San Diego County borders: Santa Ana Mts. Comment
  UCR215278  Agrostis pallens Fred M. Roberts 2008-5-14 6968 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
  UCR242117  Agrostis pallens D. E. Bramlet 1983-5-28 1378 Orange South Coastal Plains, Dana Point, SW of Pacifc Coast Highway 73 Comment
  JEPS73752  Agrostis viridis Lawrence M. Booth 1932-6-7 1163 Orange Newport Bay Comment
  UCSB57138  Allium haematochiton Marsh, G.; Marsh, K. 1978-5-13 Orange Santa Ana Mts; Coal Canyon; Ridge along Main Divide Road, S portion of acreage 731 Comment
  RSA0063250  Allium marvinii Orlando Mistretta 1992-6-2 453 Orange Vicinity of Sierra Peak. (Historical Locality). Comment
  CAS-BOT-BC132051  Allium peninsulare var. peninsulare P. C. Everett; E. R. Johnson 1935-5-29 7092 Orange Santa Ana Mts., Summit of Claymine Canyon 762 Comment
  RSA450852  Allium praecox Gordon Marsh 1978-3-17 s.n. Orange U.C. Irvine Ecological Preserve. 85 Comment
  RSA410097  Allophyllum glutinosum N. C. Cooper 1949-5-1 3948 Orange San Juan Canyon. 610 Comment
  RSA539356  Allophyllum glutinosum Fred M. Roberts 1988-6-10 4100 Orange Modejeska Peak, 0.8 km SW summit along crest. 1548 Comment
  SD245425  Allophyllum glutinosum Robert 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
  UCSB52943  Allophyllum glutinosum Roberts, Fred 1983-9-26 Orange Santa Ana Mts.; Lion Canyon, Chiquito Basin Trail, 3.6 km NNE Lower San Juan Picnic Grounds; 4.0 km SSE Los Pinos Peak 820 Comment
  CAS-BOT-BC170688  Alnus rhombifolia John Thomas Howell 1927-7-21 2810 Orange Santa Ana River bottom, Santa Ana Canon [canyon] 152 Comment
  SD127314  Alnus rhombifolia Reid Moran, Jack Reveal and Bob Smart 1975-7-18 22597 Orange Near Yaeger Mine, bottom of upper Trabuco Canyon, Santa Ana Mts. 725 Comment
  UC1543134  Alnus rhombifolia Donald G. Nelson 1938-12-26 Orange in creek bottom near Myers Ranch; Santa Ana Mountains, Black Star Canyon, Black Star Creek Comment
  UCR234157  Alnus rhombifolia Dick Newell, Judy Booth 2012-3-25 233 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  UCR219282  Aloe arborescens Robert DeRuff 2009-1 574 Orange South Coast, Upper Newport Bay, Eastbluff area, lower Big Canyon 23 Comment
  RSA731751  Amaranthus albus Fred M. Roberts 2007-11-9 6653 Orange San Juan Canyon along San Juan Creek, about 0.6 km E San Diego FWY. 24 Comment
  UCD97187  Amaranthus albus Ira L. Wiggins 1966-5-4 20658 Orange Along railroad embankment of A.T. and S.F.R.R., on southwest side of Orangethorpe Avenue, near Esperanza siding. Comment
  RSA542441  Amaranthus deflexus Fred M. Roberts 1988-10-21 4161 Orange Irvine: Michelson bridge at San Diego Creek. 4 Comment
  IRVC14988  Amaranthus hybridus 1976-10-28 Orange Nieblas Elementary Sch. playground Fountain Valley Comment
  RSA1306  Amaranthus hybridus J. T. Howell 1928-9-20 1210 Orange Rancho Santa Ana, near ranch houses. 152 Comment
  RSA274  Amaranthus powellii J. T. Howell 1927-7-27 502 Orange Near ranch, Rancho Santa Ana 152 Comment
  UCR111749  Amaranthus retroflexus G. S. Nuessly 1980-11-27 s.n. Orange South Coast, south side of East Santiago Canyon Road, 0.25 mi north [west] of North Windes Drive 137 Comment
  RSA450869  Ambrosia acanthicarpa Karlin G. Marsh 1984-10-12 s.n. Orange Seal Beach: southeast of San Gabriel River mouth. Comment
  CDA25220  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-8-7 35990 Orange Peninsular Range; Santa Ana Mountains.; Lower Weir Canyon, at narrow gorge c. 0.6 mile above mouth of canyon at Irvine Ranch gate. Comment
  JEPS41025  Ambrosia psilostachya W. L. Jepson 1940-10-6 20179 Orange Horseshoe Bend; Santa Ana River Canon Comment
  JEPS41038  Ambrosia psilostachya J. P. Harrington August, 1932 Orange San Juan Capistrano Comment
  POM122758  Ambrosia psilostachya Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA33797  Ambrosia psilostachya N. C. Cooper 1942-11-9 882 Orange Balboa. Comment
  RSA770  Ambrosia psilostachya J. T. Howell 1927-9-24 754 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  UCR197676  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-9-18 36073 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  CAS-BOT-BC45062  Ambrosia psilostachya David D. Keck 1933-10-3 2539 Orange Sunset Beach Comment
  SBBG14802  Amorpha californica P. H. Raven 1962-5-18 17752 Orange Silverado Cyn Truck Trail 7.3 mi above Gate 1280 Comment
  CAS-BOT-BC177257  Amorpha fruticosa John Thomas Howell 1927-6-6 2449 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  RSA697898  Amorpha fruticosa R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  CHSC10141  Amsinckia intermedia J. W. Johnson 1961-3-16 Orange Newport Beach. On north slope overlooking Upper Newport Bay. Comment
  HSC3516  Amsinckia intermedia C. L. Hitchcock, C. V. Muhlick 1964-3-17 23064 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  HSC3522  Amsinckia intermedia J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  RSA0089443  Amsinckia intermedia P. A. Munz 1932-3-29 12189 Orange Costa Mesa. Comment
  RSA450858  Amsinckia intermedia Gordon Marsh 1978-10-19 s.n. Orange UC Irvine Ecological Preserve. 98 Comment
  UC971736  Amsinckia intermedia L. M. Booth 1932-5-30 1137 Orange Newport Bay Comment
  RSA0089627  Amsinckia intermedia Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  IRVC212  Amsinckia menziesii var. intermedia C. Thompson 1965-3-20 Orange [Lower Santiago Canyon], Irvine Lake area. Santa Ana Mountains Comment
  IRVC201  Amsinckia menziesii var. intermedia S. Parks 1965-4-6 Orange Newport Back Bay. Newport Beach Comment
  RSA0031721  Anagallis arvensis Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-1 8 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  UCD117438  Anagallis arvensis E. Frost 1996-5-11 13 Orange Newport Back Bay, 45 yards in along bike path. 7 Comment
  UCR191435  Anagallis arvensis A. C. Sanders, Fred M. Roberts 2008-4-8 34729 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA650588  Anagallis arvensis D. Geisinger, R. Miller, E. Baldwin 1959-4-14 s.n. Orange Poor Mans Weather Glass, Santa Ana Canyon. Comment
  CAS-BOT-BC400328  Anemopsis californica A. C. Sanders; Fred M. Roberts 2008-8-7 35986 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
  JEPS535  Anemopsis californica Lawrence M. Booth 1932-7-19 1280 Orange Bolsas Creek Comment
  RSA750120  Anemopsis californica A. C. Sanders, Fred M. Roberts 2008-8-7 35986 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 185 Comment
  IRVC15192  Anthemis cotula S. C. Bough 1972-4-28 Orange Silverado Canyon. Santa Ana Mountains Comment
  JEPS13328  Anthemis cotula L. M. Booth 1932-5-15 1200 Orange Coastal Santa Ana Basin Comment
  RSA768  Anthemis cotula J. T. Howell 1927-7-18 425 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA594820  Antirrhinum coulterianum Fred M. Roberts, Sandra Leatherman, Brian Leatherman 1994-4-24 4914 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  RSA697  Antirrhinum coulterianum J. T. Howell 1927-6-5 34 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA650901  Antirrhinum kelloggii R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA698987  Antirrhinum majus Snow 1929-03 s.n. Orange Santa Ana. Comment
  CHSC101739  Antirrhinum multiflorum R. E. Riefner Jr. 2008-7-21 08 -2248 Orange Irvine Ranch Reserve, North Irvine Ranch, middle Fremont Canyond, east slope along Black Star SCE Rd. UTM: 11S 0437874E 370552N. 717 Comment
Read comments
Dec 14 2012
  RSA737890  Antirrhinum multiflorum R. E. Riefner 2008-5-15 09 -83 Orange Irvine Ranch Reseve, N Irvine Ranch, E Fork cliffs at upper Fremont Canyon along Black Star SCE road. 610 Comment
  UCR203910  Antirrhinum multiflorum R. E. Riefner Jr. 2008-7-21 08- 248 Orange Santa Ana Mountains, Irvine Ranch Reserve, North Irvine Ranch, middle Fremont Canyon, east slope along Black Star SCE Road 718 Comment
Read comments
Sep 5 2010
  RSA737889  Antirrhinum multiflorum R. E. Riefner 2007-6-29 07 -286 Orange Irvine Ranch Reseve, N Irvine Ranch, E Fork cliffs at upper Fremont Canyon along Black Star SCE road. 579 Comment
  UCR229212  Antirrhinum nuttallianum Dick Newell, Peter Wetzel 2011-6-28 200 Orange South Coast, San Joaquin Hills, Willow Canyon, Laguna Coastal Wilderness Park 89 Comment
  SBBG6704  Antirrhinum nuttallianum J. M. Tucker 1941-5-30 260 Orange Ortega Hwy (St Hwy 74), 2 to 3 mi E of W boundary of Cleveland Nat Forest Comment
  RSA0057935  Apiastrum angustifolium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49666 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UCSB52904  Apiastrum angustifolium Roberts, Fred 1983-5-4 Orange Laguna Beach; upper Rancho Laguna Canyon, 1.7 km. SSW Top of the World School; 1.4 km. ENE Cactus Point 200 Comment
  RSA6027  Apocynum cannabinum B. D. Stark 1932-7-15 3876 Orange Ranch Santa Ana River bottom below the ranch houses. 1220 Comment
  RSA0054901  Arabis glabra Keith E. Hoffmaster 1934-4-22 178 Orange Santa Ana mts. [Orange or Riverside]. Comment
  OBI32690  Araujia sericifera O. F. Clarke 1968-8-24 s.n. Orange 2 mi E of Yorba Linda turnoff on Santa ana Cyn rd Comment
  CAS-BOT-BC128676  Arbutus menziesii Carl B. Wolf 1933-11-8 2008 Orange Trabuco Canyon on south wall opposite the Trabuco Truck Trail, Santa Ana Mts. 914 Comment
  UC527329  Arbutus menziesii Carl B. Wolf 1933-11-8 Orange Trabuco Canyon on s wall opposite Trabuco Truck Trail; Santa Ana Mountains, Trabuco Canyon 914 Comment
  UCSB56518  Arbutus menziesii Meinzer, R.; Mulroy, T. 1971-4-25 Orange Upper Trabuco Canyon, Santa Ana Mts. Comment
  RSA629338  Arctostaphylos glandulosa C. J. Fotheringham, Jon E. Keeley 1996-6-24 27644 Orange Ca. 3 km west of Sierra Peak. 700 Comment
  UCR281858  Arctostaphylos glandulosa A. C. Sanders, Yi Huang 2017-3-3 42698 Orange Peninsular Range; Santa Ana Mtns., North Main Divide Road, 3.5 km north of Hwy 74 959 Comment
  CAS-BOT-BC23105  Arctostaphylos glandulosa subsp. glandulosa A. M. White 1974-6-1 1358 Orange Ca. 20 mi. E. of Santa Ana, N. of Silverado Chanyon 1005 Comment
  CAS-BOT-BC23112  Arctostaphylos glandulosa subsp. glandulosa P. A. Munz; E. K. Balls 1952-8-19 17924 Orange Summit of Ortega hwy, Santa Ana Mts. 822 Comment
  RSA629325  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15512 Orange Rd. 6S06, 1km northeast of Blue Jay Campground, north of El Cariso (Hwy 74) 1050 Comment
  RSA629329  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15515 Orange Road to Los Pinos Peak (3S04), 2 km northeast of Blue Jay Campground and 1 km above 5S05. North of Hwy. 74. 1100 Comment
  RSA629344  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15501 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  RSA798535  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, E. W. Lathrop 1977-5-18 49732 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail Comment
  UC1137195  Arctostaphylos glandulosa subsp. zacaensis Willis E. Pequegnat 1940-6-12 Orange Main Divide Rd e Los Pinos Peak; Cleveland National Forest, Elsinore Quadrangle, Santa Ana Mt 1371 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
  RSA659895  Arenaria douglasii Karl Price 1988-5-21 47 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  UCR27108  Argemone munita subsp. robusta T. P. Krantz 1981-6-18 s.n. Orange Santa Ana Mtns, Main Divide Truck Trail near the head of the canyon Comment
  RSA105977  Argemone munita subsp. robusta Gerald B. Ownbey, Findley Ownbey 1954-7-2 2177 Orange Between Modjeska Peak and Santiago Peak 1524 Comment
  RSA716656  Argyranthemum frutescens Fred M. Roberts 2005-5-13 6184 Orange San Juan Capistrano; Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  RSA542373  Aristida adscensionis Fred M. Roberts, T. Sholars, B. Stechmeyer s.n. Orange Santa Ana Mountains: Hot Sprinngs Canyon. 1.3 kilometers N Highway 74 by road, 0.7 kilometers NW Juan Rancho Survey Mark., UTM 3717900m N, 452700m E 274 Comment
Read comments
Jul 12 2013
  RSA39  Aristida adscensionis var. modesta J. T. Howell 1928-2-7 817 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA682760  Aristida purpurea Scott D. White, Amanda Duchardt 2003-3-27 8857 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA156062  Arnica discoidea Peter H. Raven 1962-5-18 17751 Orange [Santa Ana Mountains] 4.8 miles above gate on Silverado Canyon Truck Trail. 1067 Comment
  JEPS36923  Artemisia biennis L. M. Booth 1932-7-4 1250 Orange Newport Bay Comment
  RSA5961  Artemisia biennis C. B. Wolf 1932-9-13 4037 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
  HSC4715  Artemisia californica J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  IRVC9384  Artemisia californica B. Gittins 1963-3-8 22 Orange east shore. Newport Beach Comment
  SD144070  Artemisia californica Scott D. White 1996-12-20 4634 Orange Santa Ana Mts., above Modjeska Canyon 424 Comment
  UCR131889  Artemisia californica J. Mallory, V. McCoy 1995-7-3 6454- 70 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  UCR92774  Artemisia californica F. M. Reed 1927-11-10 5640 Orange South Coast, Sulfur Slide Hill in Santa Ana River Canyon 150 Comment
  UCR103707  Artemisia douglasiana B. G. Pitzer, T. Tennant 1997-11-8 3362 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
  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
  CAS-BOT-BC90564  Artemisia dracunculus John Thomas Howell 1927-9-24 3110 Orange on n. side of Santa Ana [Canon] Canyon 213 Comment
  POM6088  Artemisia dracunculus Daniel J. Crawford 1916-8-3 s.n. Orange Arch Beach. Laguna Beach Region. Comment
  UC520306  Artemisia dracunculus Joseph Andorfer Ewan 1932-7-28 7687 Orange Corona del Mar Comment
  UC75907  Artemisia dracunculus E. A. Zumbro 1902-1-1 385 Orange Comment
  UCR193027  Artemisia dracunculus A. C. Sanders, Fred M. Roberts 2008-6-17 35514 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  HSC4510  Arthrocnemum subterminale J. W. Johnson 1961-3-30 Orange Newport Beach, seep along cliff base at N side of Big Canyon near upper Bay Rd. Comment
Read comments
Jul 17 2015
  LA204707  Arthrocnemum subterminale J. Warren; sn Orange Anaheim Slough 0 Comment
  IRVC14869  Asclepias eriocarpa Gordon A. Marsh, Karlin G. Marsh 1976-7-8 s.n. Orange 0.1km W Casper's Park in fire break; periphery of live oak woodland. Rancho Mission Viejo Comment
  RSA0104746  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35489 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
  RSA49951  Asclepias eriocarpa E. K. Balls 1949-6-11 13494 Orange heavy clay and stone, steep dry benches, Rancho Santa Ana 2 mi below entrance to Botanic Garden, Santa Ana River Canyon. 122 Comment
  SEINET955311  Asclepias eriocarpa Carl B. Wolf 1936-1 7947 Orange Santa Ana Mountains, along Ortega Highway, 5 6/10 miles above San Juan Capistrano. 76 Comment
  UCR197701  Asclepias fascicularis A. C. Sanders, Fred M. Roberts 2008-9-18 36086 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  IRVC12865  Asparagus plumosus B. T. Gittins 1964-4-15 390 Orange Costa Mesa, 1613 Sandalwood. Comment
  IRVC180  Asplenium bulbiferum Kirk Hayward 1965-4-20 HS0562 Orange Costa Mesa: 17th Street. Southern Coastal Comment
  UCR92392  Aster bernardinus F. M. Reed 1927-11-10 5634 Orange South Coast, 1 mile south of Tustin, toward Laguna Canyon 31 Comment
  RSA793262  Aster exilis R. F. Thorne 1984-1 s.n. Orange Newport Back Bay. Comment
  SEINET946267  Asteraceae C. B. Wolf 1934-1 6262 Orange South end of town of San Clemente 15 Comment
  CAS-BOT-BC180453  Astragalus brauntonii B. D. Stark 1933-6-1 4997 Orange Santa Ana Mts., No. slopes of Sierra Peak Comment
  RSA6139  Astragalus brauntonii B. D. Stark 1933-06 4997 Orange Santa Ana Mountains, north slopes of Sierra Peak. [county unspecified] Comment
Read comments
Aug 9 2007
  RSA379  Astragalus didymocarpus J. T. Howell 1928-3-17 872 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA749637  Astragalus didymocarpus var. didymocarpus D. E. Bramlet 2008-3-31 4135 Orange 282m East Upper Hicks Haul Rd, Trib. to Limestone Cyn. 1km S of Santiago Cyn Rd. 317 Comment
  UC1929556  Astragalus didymocarpus var. didymocarpus Scott D. White, Justin Wood 2008-4-21 11904 Orange Chino Hills: Chino Hill State Park, N of 91 freeway, above Yorba Linda. Comment
  UCR191320  Astragalus gambelianus A. C. Sanders, Fred M. Roberts 2008-4-8 34748 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  IRVC25473  Astragalus pomonensis Fred M. Roberts 1987-4-21 3375 Orange Aliso Creek, Aliso Creek Bike Trail, 3.0km ENE Moulton Peak, Aliso Viejo 73 Comment
  OBI5666  Astragalus trichopodus var. lonchus Carl B. Wolf 1931-3-6 1860 Orange 1.5 mi below Trabuco Camp Ground, Trabuco Cyn, W slope of Santa Ana Mts 549 Comment
  RSA2991  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-3 s.n Orange Botany garden. (RSA?) Comment
  RSA90711  Astragalus trichopodus var. lonchus F. W. Peirson 1923-9-8 4044 Orange Trabucco Canyon. 427 Comment
  UCD105450  Astragalus trichopodus var. lonchus J. E. Eckert 1945-6-28 s.n. Orange location unknown. 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
  UC1980258  Atriplex R. E. Riefner Jr. 2008-3-24 08 -67 Orange City of Seal Beach, Bolsa Chica Salt Marsh, Warner Ave. at Pacific Coast Highway. Comment
  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
  UC450972  Atriplex californica F. A. MacF. 1931-3-1 2927 Orange Laguna Beach Laguna Beach (crevices of sea cliffs) Comment
  UCR146227  Atriplex californica Valerie Soza, Et al. 2001-4-4 1109 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
  UCSB56683  Atriplex californica Roberts, Fred 1985-7-9 Orange Crystal Cove State Park; Pelican Point, 1.9 km. SW Pelican Hill 15 Comment
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Feb 9 2020
  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
  RSA452454  Atriplex canescens E. A. Purer 1932-8-31 s.n. Orange Near Route 101 Comment
  RSA65358  Atriplex canescens F. W. Peirson 1924-8-29 4528 Orange Corona Del Mar Comment
  SD133121  Atriplex canescens A. C. Sanders 1990-10-6 10193 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
  UC536969  Atriplex canescens Lawrence M. Booth 1932-7-23 1301 Orange Corona del Mar , Corona del Mar (Newport Beach) Comment
  CAS-BOT-BC170196  Atriplex canescens subsp. canescens John Thomas Howell 1927-10-22 3162 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  IRVC24454  Atriplex canescens subsp. canescens Fred M. Roberts 1985-11-20 2560 Orange Newport Back Bay, near Camp Survey Mark, Newport Beach 2 Comment
  POM632  Atriplex coulteri I. M. Johnston 1918-5-5 1928 Orange Laguna Beach. Comment
  UCR150378  Atriplex coulteri D. E. Bramlet 1998-7-22 2660 Orange Peninsular Ranges/Coastal Foothills region, San Juan Hills: 854 m west of La Pata Ave. and 1.73 km N of Prima Deshecha Canada. A ridgeline 457 m east of a small, unnamed canyon 159 Comment
  UCR191240  Atriplex glauca A. C. Sanders 2008-4-29 35139 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  RSA743559  Atriplex glauca R. E. Riefner 2002-5-4 2 -88 Orange City of Newport Beach, Upper Newport Bay, general vicinity of Bayview Wy. and Bayview Pl. 7 Comment
  RSA743660  Atriplex glauca R. E. Riefner 2007-1-22 7 -20 Orange City of San Juan Capistrano, San Juan Creek at Hwy. 74. 56 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
  UCSB56520  Atriplex lentiformis Johnson, J. 1978-11-8 Orange Irvine; Coyote Canyon Road and Mac Arthur Blvd. intersection Comment
  RSA18531  Atriplex lentiformis subsp. breweri C. B. Wolf 1927-7-23 667 Orange Along the coast just north of San Clemente. Comment
  RSA5271  Atriplex lentiformis subsp. breweri B. D. Stark 1932-12-9 1676 Orange Capistrano Beach at Doheny Palisades. Comment
  CLARK-A1528-2529  Atriplex leucophylla John C. Roos 1937-2-23 1307 Orange Laguna Beach Comment
  UCR282160  Atriplex lindleyi R. E. Riefner Jr. 2017-4-10 17- 162 Orange South Coast, city of San Clemente, San Clemente State Beach, southwest bluff area, west of Concordia Elementary School 29 Comment
  POM656  Atriplex pacifica D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  RSA478340  Atriplex pacifica L. C. Wheeler 1932-6-25 855 Orange Newport Bay. 2 Comment
  UC536972  Atriplex rosea Lawrence M. Booth 1932-8-5 1350 Orange West Newport Beach West Newport Beach (salt marsh) Comment
  CLARK-A1528-4911  Atriplex semibaccata John C. Roos 1949-10-10 4679 Orange Doheney Beach Comment
  SEINET4136251  Atriplex semibaccata M. L. Conrad, David B. Dunn 1973-6-13 7124 Orange In vicinity of Laguna Beach.; 0 Comment
  UCSC000222  Atriplex semibaccata I. J. Condit 2008-7-20 s.n. Orange Los Alamitos Comment
  RSA5823  Atriplex semibaccata C. B. Wolf 1932-6-28 3799 Orange 100 ft. east of pump house at East End Camp. 9 Comment
  POM201891  Atriplex serenana L. M. Booth 1932-5-19 1070 Orange Newport Lagoon, Corona del Mar. Comment
  RSA5868  Atriplex serenana C. B. Wolf 1932-9-13 4018 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
  RSA651748  Atriplex serenana Michael J. Graeser 1988-5-8 30 Orange Orange. Santiago Canyon road. 1 mile north of Chapman Ave. [Across] from Holy Sepulcher Cemetary. Comment
  UC206816 Image available Atriplex serenana var. davidsonii A. Davidson, M. D. Sep 1913 2951 Orange Balboa; ; Balbra Comment
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Feb 22 2012
  CAS-BOT-BC176756  Atriplex serenana var. serenana H. M. Hall 1920-10-4 11220 Orange West of Santa Ana Comment
  RSA734916  Atriplex suberecta A. C. Sanders, Fred M. Roberts 2008-6-17 35472 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCD97688  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 Road. 11 Comment
  RSA65356  Atriplex truncata F. W. Peirson 1924-8-29 5073 Orange 4 miles south of Santa Ana. Comment
  CHSC104028  Atriplex watsonii Valerie Soza; K. Clark, L. Gross, W. Miller, F. Roberts, G. Wallace 2001-4-4 1100 Orange Seal Beach National Wildlife Refuge: Seal Beach U.S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  UCR14058B  Atriplex watsonii Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  UC1130900  Avena barbata A. Lewis Apr 1934 395 Orange San Joaquin Hills Corona Quadrangle Comment
  UCR99871  Avena barbata Scott D. White 1993-3-5 1114 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA697311  Avena fatua Keith E. Hoffmaster 1936-4-14 s.n. Orange Santa Ana Comment
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Nov 20 2011
  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
  RSA184189  Avena fatua I. L. Wiggins 1966-3-22 20555 Orange Silverado Canyon about 0.5 mile below entrance to Cleveland National Forest. Comment
  RSA13  Azolla filiculoides John Thomas Howell 1927-7-6 284 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA151095  Baccharis douglasii Peter H. Raven 1961-10-15 16861 Orange Coast Hwy 2 miles SE of Sunset Beach 0 Comment
  CDA10367  Baccharis emoryi Hill, Lee 1951-9-9 B 51632 Orange Santa Fe Railroad tracks, near Red Hill Avenue, Santa Ana. 0 Comment
  IRVC25196  Baccharis emoryi Fred M. Roberts, Robert Fisher 1986-10-28 3179 Orange Main Divide Truck Trail Extension, 2.3km E Los Pinos Peak, in seep at base of south-facing road cut. Santa Ana Mountains 1030 Comment
  IRVC25220  Baccharis emoryi Fred M. Roberts 1986-10-31 3197 Orange Seal Beach Naval Weapons Station: Anaheim Bay, vicinity of Hog Island. on berm along margin of upper coastal salt marsh. southern coastal 0 Comment
  LA103539  Baccharis emoryi Barry A. Prigge; 1983-12-17 5519 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
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Jun 12 2013
  RSA792937  Baccharis emoryi R. F. Thorne 1984-1 s.n. Orange Newport Back Bay. Comment
  RSA741698  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08 -171 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Rd. 495 Comment
  CAS-BOT-BC99444  Baccharis pilularis Carl B. Wolf 1934-12-26 6262 Orange so. end of town of San Clemente 15 Comment
  UC532156  Baccharis pilularis Carl B. Wolf 1934-12-26 2310 Orange s end of town of San Clemente 15 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
  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
  RSA658218  Baccharis salicifolia T. A. Daubert 1991-5-19 649 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  SBBG40584  Baccharis salicifolia C. Ingram 1960-3-29 256 Orange ca. 3 mi above O'Neill Park, Trabuco Cyn Comment
  SD220034  Baccharis salicifolia Mark A. Elvin 2004-5-2 3414 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 (air) NNW UC Irvine campus center. 3 Comment
  UCR102020  Baccharis salicifolia B. G. Pitzer 1997-3-25 3022 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, along the bike trail 30 Comment
  UCR192736  Baccharis salicifolia A. C. Sanders, Fred M. Roberts 2008-5-6 35231 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  UCSB47980  Baccharis salicifolia Roberts, Fred 1980-2-17 Orange Along Camino Capistrano, 1.0 km. south of Avary Parkway, southern Mission Viejo 48 Comment
  SD255082  Baccharis salicina R. F. Thorne 1977-11-21 49981 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp. Comment
  RSA696792  Baccharis viminea R. H. McArthur 1934-2-3 s.n. Orange Roadside beyond El Modena Hills. Drainge Wash. Comment
  SD233267  Barbarea orthoceras R. F. Thorne, E. W. Lathrop, G Marshs. 1977-5-4 49818 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CDA7901  Bassia hyssopifolia Adam Ontiveros 2008-7-8 PDR# 1543672 Orange Anaheim, 1750 S. Douglass Rd 0 Comment
  IRVC25221  Bassia hyssopifolia Fred M. Roberts 1986-11-4 3202 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  SD146318  Bassia hyssopifolia 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
  UCR109633  Bassia hyssopifolia R. D. Goeden, Don W. Ricker 1965-7-7 s.n. Orange Tustin township, near Peters Canyon Channel, east of Santa Ana Marine Corps Air Station 61 Comment
  RSA439758  Batis maritima Anstruther Davidson 1907-9-1 1769 Orange Newport Comment
  RSA609049  Batis maritima L. C. Wheeler 1932-6-25 858 Orange Newport Bay. 1 Comment
  UCSB36212  Batis maritima Ferren, Wayne 1980-8-27 Orange In Newport Back Bay W side of Back Bay Drive, ca. 1.5 km. NE of Rt. 1, Newport Beach Comment
  POM50753  Bebbia juncea Helen D. Geis 1902-12-6 s.n. Orange Dry bed of Santiago Creek Canyon Comment
  RSA5334  Bebbia juncea B. D. Stark 1933-1-3 4480 Orange Rancho Santa Ana near pear orchard. 122 Comment
  RSA602112  Bebbia juncea Scott D. White 1997-5-6 5034 Orange Santiago Canyon: ca. 1.5 mi N. of Modjeska Canyon. 'Lomas de Santiago' S178 351 Comment
  IRVC22020  Bebbia juncea var. aspera D. Bramlet 1985-7-2 AH-1 Orange Anaheim Hills Golf Course, on knoll near #3 green, Anaheim 183 Comment
  RSA696876  Bidens laevis J. Russell Bruff 1930-10 s.n. Orange Santa Ana River, 1st Street. Comment
  RSA751311  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-5-6 35266 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
  RSA698736  Bloomeria crocea Minor Warne 1934-04 s.n. Orange Panerama Heights Comment
  RSA542342  Bloomeria crocea var. crocea Fred M. Roberts, Karlin G. Marsh 1988-4-25 3932 Orange San Joaquin Hills: East flank Pelican Hill, 0.9 kilometer SE summit. 120 Comment
  CAS-BOT-BC31012  Bolboschoenus maritimus John Thomas Howell 1957-9-28 11378 Orange Salt marshes, north limits of Surfside. Comment
  UCSB54129  Bolboschoenus maritimus Roberts, Fred 1985-6-12 Orange Laguna Niguel: Alicia Pkwy., 2.1 km. by road SW La Paz Rd.;1.0 km. W Sulphur Creek Reservoir, UTM 37117mN, 433525mE 67 Comment
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Feb 22 2019
  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
  CDA1758  Bothriochloa barbinodis T. C. Fuller 1961-10-17 7155 Orange East side of Hwy. 101 Alt., opposite 2787 So. Pacific Coast Highway, Laguna Beach. 0 Comment
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Jul 8 2013
  UCD56816  Bothriochloa barbinodis P. B. Kennedy 1924-2-5 s.n. Orange Irvine Range. Comment
  UCD56830  Bothriochloa saccharoides A. A. Beetle 1942-4-19 3102 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  UCR140887  Bougainvillea glabra Robert DeRuff 1988-9-16 348 Orange Southern Coast, Newport Beach, Newport Back Bay, path between 23rd Street and Mariners Drive 9 Comment
  CAS-BOT-BC95400  Bowlesia incana Scott D. White; Noel Davis 1998-4-24 6339 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd., N of jct. with Valley Vista Way 500 Comment
  SD215371  Bowlesia incana Scott D. White, Noel Davis 1998-4-24 6339 Orange Aliso Creek watershed, east of El Toro Road, just north of junction with Valley Vista Way. Large proposed subdivision called Saddleback Meadow. Near abandoned ranch site. 299 Comment
  IRVC25297  Bowlesia incana Helen Camp 1989-4-18 10 Orange Bell Canyon, lateral ridge on west side of canyon, 4.7km NNW Visitor Center; Casper's Regional Park 226 Comment
  UCR186136  Brassica geniculata T. B. Salvato, Katie Kurtz 2006-10-15 1921 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  CDA22511  Brassica nigra D. Nguyen, C. Nguyen 2006-2-4 3 Orange Southern Coastal; San Joaquin Marsh; northwest edge of marsh. Comment
  IRVC20786  Brassica nigra Fred M. Roberts, S. L. Fritzke 1982-4-2 468a,b,c Orange hills, 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station, N of Del Avion, Laguna Niguel 100 Comment
  CAS-BOT-BC30255  Brassica nigra Alice Eastwood 1936-4-5 s.n. Orange Santa Ana. Bixby Botanic Garden. Comment
  CAS-BOT-BC36768  Brassica rapa Ira L. Wiggins 1965-12-5 20365 Orange 2 miles east of Atwood on north side of Orangethorpe Avenue. Comment
  POM202597  Brassica rapa L. M. Booth 1932-7-21 s.n. Orange Anaheim Creek Comment
  UCR222629  Brickellia californica T. B. Salvato 2010-10-27 5102 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
  UCR142297  Brodiaea filifolia D. E. Bramlet, Sandy Leatherman 1998-5-21 2625 Orange Slope adjacent to a tributary of Segunda Deshecha Canada, c. 610 m N of the exisitng access road (Telaga Valley Dr.) and 2.9 km N of Avenida Pico. c. 1.93 km west of Cristianitos Canyon and 640 m west of Wilson Camp Rd 201 Comment
  JEPS7700  Brodiaea terrestris subsp. kernensis Alice King Jun 1908 Orange Santa Ana Mts. Comment
  CAS-BOT-BC144328  Bromus Ira L. Wiggins 1966-3-5 20519 Orange About 0.5 mile west of El Torro Post Office, along Highway S-18. Comment
  CAS-BOT-BC249026  Bromus carinatus A. C. Sanders; Fred M. Roberts 2008-4-8 34751 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
  LA13709  Bromus carinatus LeRoy Abrams; 1903-4-18 3271 Orange San Juan Capristrano Comment
  UCR191476  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-4-8 34751 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
  CAS-BOT-BC156208  Bromus catharticus Ira L. Wiggins 1965-10-18 20275 Orange Curbway at northeast corner of Chapman Avenue and Victor Drive, Fullerton. Comment
  RSA725588  Bromus catharticus Fred M. Roberts 2007-8-6 6560 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  RSA732241  Bromus diandrus A. C. Sanders, Fred M. Roberts 2008-4-22 35051 Orange Penisular Range; Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon. c. 3.5 mi. WSW of Silverado 493 Comment
  RSA708814  Bromus grandis Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6214 Orange Main Divide Road, ridge between Silverado and Bixby Canyons, coastal slope, 0.46km (air) S Bald Peak. 1203 Comment
  SD95150  Bromus grandis Jack l. Reveal 1975-7-18 1765 Orange Occasional on dry sites among boulders, riparian zone, Trabuco Canyon 550 Comment
  RSA732235  Bromus hordeaceus A. C. Sanders, Fred M. Roberts 2008-4-22 35041 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  SD144128  Bromus hordeaceus Scott D. White 1997-3-28 4845 Orange Santa Ana Mts.; Above Modjeska Cyn in patches and trailsides of coastal sage scrub and N facing slopes 427 Comment
  UCR100463  Bromus hordeaceus B. G. Pitzer 1996-4-30 2760 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR191441  Bromus hordeaceus A. C. Sanders, Fred M. Roberts 2008-4-8 34723 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA41  Bromus hordeaceus J. T. Howell 1928-3-17 865 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA4803  Bromus hordeaceus James Snow s.n. Orange Bryant Ranch, near Long Beach. South West 1/4 Section 1, Township 5 S, Range 12 W, Station #1. Comment
  RSA696607  Bromus hordeaceus Rankin s.n. Orange Costa Mesa. Comment
  SEINET179447 Image available Bromus hordeaceus subsp. hordeaceus Lawrence M. Booth 1932-5-12 1023 Orange Newport Bay Comment
  RSA184174  Bromus hordeaceus subsp. molliformis I. L. Wiggins 1966-4-22 20614 Orange Along Associated road between Yorba Linda Boulevard and Imperian Highway. Comment
  UCR166791  Bromus inermis subsp. inermis R. E. Riefner Jr. 2005-10-1 05- 702 Orange City of Costa Mesa, South Coast Drive at Susan Road 16 Comment
  UCR192067  Bromus madritensis A. C. Sanders, Fred M. Roberts 2008-5-6 35251 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  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
  HSC9317  Bromus madritensis subsp. rubens T. L. Ackerman 1964-3-28 9 Orange Irvine Park Dr. inside Irvine Park Comment
  RSA699743  Bromus pseudolaevipes Fred M. Roberts, David E. Bramlet 2003-5-15 5876 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 1.41km SSW Gato Gate and 0.35km NNW of SDG&E substation. 122 Comment
  RSA697684  Bromus rigidus Rankin s.n. Orange Costa Mesa. Comment
  CAS-BOT-BC161820  Bromus rubens Ira L. Wiggins 1966-3-4 20494 Orange Along shoulder of Peralta Avenue, near junction of Newport Freeway and Riverside Highway. Comment
  RSA731996  Bromus rubens A. C. Sanders, Fred M. Roberts 2008-4-8 34783 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  UCD59511  Bromus rubens Beecher Crampton 1963-5-7 6791 Orange Ca. 11 miles northeast of San Juan Capistrano, State Hwy. 74, Lower San Juan Canyon, Santa Ana Mountains. Comment
  POM363952  Bromus rubens Alice Jane Merritt 1893-05 s.n. Orange Santa Anna [Santa Ana] Comment
  RSA650419  Bromus rubens R. B. Newcom 1948-4-24 25 Orange approx. 3 miles N.W. of Irvine Park. Comment
  RSA696611  Bromus rubens Ranki s.n. Orange Casta Mesa Comment
  CDA22568  Bromus tectorum J. B. Anderson 1966-4-19 601 Orange Upper Newport Bay. 0 Comment
  SEINET5642639  Cakile maritima Shelby J. Wood 2013-3-9 8 Orange Sunset Beach close to Bolsa Chica.; 0 Comment
  UCR151389  Cakile maritima Valerie Soza, Kevin Clark, , LeRoy Gross, Will Miller,, Fred M. Roberts, G. D. Wallace 2001-4-4 1113 Orange Coastal Plains & Basins; Los Angeles Basin region, Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  CSUSB524  Cakile maritima R. P. Sunderman 1968-5-11 S. N. Orange Beach just south of Corona del Mar Comment
  SEINET6168371  Calandrinia breweri R. E. Riefner Jr. 2008-1 08 -31 Orange Irvine Ranch Reserve, North Irvine Ranch, S of Windy Ridge Rd. ca. 0.5 mi from West Fork of upper Fremont Canyon. USGS 7.5' Quad: Black Star Canyon 496 Comment
  RSA737235  Calandrinia breweri R. E. Riefner 2008-4-15 08 -70 Orange Irvine Ranch Reserve, North Irvine Ranch, S of Windy Ridge Rd. ca. 0.5 mi from West Forst of upper Fremond Canyon. 496 Comment
  RSA734959  Calandrinia ciliata L. C. Hull 1934-3-7 s.n. Orange Laguna Hills Comment
  SD234997  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34576 Orange Peninsular Range: Santa Ana Mountains; saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mile N of (Santiago Reservoir) Irvine Lake (Black Star Canyon7.5' Q) 405 Comment
  IRVC29833  Callistemon Tom McCrainie, Mark A. Elvin 2006-9-23 7 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
  RSA756071  Callistemon viminalis T. B. Salvato, Billy Deane 2006-10-16 1942 Orange Irvine, San Diego Creek flood control channel, between Michelson Driveand the 405 Fwy. 9 Comment
  RSA220977  Calochortus catalinae E. W. Lathrop 1966-3-23 6098 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA539345  Calochortus catalinae Fred M. Roberts 1988-2-9 3781 Orange Lomas de Santiago: Loma Ridge, 1.5 km N Bee Survey Mark. 381 Comment
  RSA602120  Calochortus catalinae Scott D. White 1997-5-6 5047 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  CAS-BOT-BC483375  Calochortus invenustus L. R. Abrams 1901-6-15 1848 Orange Santiago Peak Comment
  RSA679228  Calochortus splendens Fred M. Roberts 2003-6-25 5942 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA708237  Calochortus splendens Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6234 Orange Southwest arm of Modjeska Peak, 1.2km SW summit, Main Divide Rd. near jct. of road to summit. 1533 Comment
  UCR16063  Calochortus splendens K. T. Ingram 1976-5-2 s.n. Orange Peninsular Range; Santa Ana Mtns., Ortega Highway, Route 74, 12 mi. east of Hwy 405 Comment
  UCR191023  Calochortus splendens A. C. Sanders, Fred M. Roberts 2008-4-22 35013 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
  UCR223435  Calochortus splendens Dick Newell, Don Millar 2011-3-1 075 Orange Peninsular Range; Santa Ana Mtns. Foothills, MWD road east of outdoor education property, 1.6 mi. NW (312 deg. ) of Irvine Lake dam 258 Comment
  UCR76184  Calochortus splendens B. G. Pitzer, Stu Hemstreet 1992-5-27 1967 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  CAS-BOT-BC492699  Calochortus splendens P. C. Everett 1935-5-19 6874 Orange Santa Ana Mts., Baker Canyon, West Ladd Trunk Trail 304 Comment
  RSA0055000  Calochortus splendens Jim Shevock 1970-4-25 153 Orange Near Irvine Lake. 304 Comment
  CDA39277  Calochortus venustus R. G. Ahlefeld & R. L. Pope 1957-4-1 s.n. Orange Irvine Ranch. 0 Comment
  SEINET7067518  Calochortus weedii A. G. Vestal 1947-6-12 s.n. Orange Upper San Juan Canyon on Route 74 to Lake Elsinore in Cleveland National Forest. Coordinate datum: NAD27. UTM Zone 11, 452352mE, 3716538mN. 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
  RSA0013583  Calochortus weedii var. intermedius D. E. Bramlet 2008-5-22 4281 Orange Bee Cyn. Bowerman landfill site. 375m S of the Bee canyon access road. & 350m W of the active landfill. Comment
  RSA0135555  Calochortus weedii var. intermedius David E. Bramlet 2004-6-3 3596 Orange Peninsular Ranges; Santa Ana Mountains region: Tributary to Williams Cyn, 610m SW of Williams Cyn., & 122mW of the existing access road. 494 Comment
  RSA746536  Calochortus weedii var. intermedius R. E. Riefner 2008-6-5 8 -146 Orange Near City of Orange, W side of Hicks Haul Rd., Rattlesnake Cyn., SW of the asphalt plant, Irvine Ranch Reserve, Management Area 6 Comment
  RSA773550  Calochortus weedii var. intermedius Fred M. Roberts, Robert Allen, Ron Parsons, Mary Gerritsen 2008-6-8 7034 Orange Lomas de Santiago: Loma Ridge, West Loma Ridge Road at Calochortus Ridge, 2.5 km NNW Bee Peak. Irvine Ranch Conservancy 393 Comment
  SEINET7067528  Calochortus weedii var. intermedius A. G. Vestal 1947-6-12 s.n. Orange Between Aliso Creek and Trabuco Canyon on Little Oak Canyon Road. Coordinate datum: NAD27. UTM Zone 11, 444335mE, 3727266mN. Comment
  UCR203907  Calochortus weedii var. intermedius R. E. Riefner Jr. 2008-6-11 08- 150 Orange Santa Ana Mountains, Irvine Ranch Reerve, Fremont Canyon Conservation Eaement, west Fremont Canyon, Coalmine SCE Road 366 Comment
  UCR217675  Calochortus weedii var. intermedius Fred M. Roberts 2008-5-27 7003 Orange Peninsular Range; Santa Ana Mountains Foothills, Lomas de Santiago, Loma Ridge, Hicks Canyon, c. 0.2 km beyond Hicks Canyon Gate, 2.2 km west-northwest of Bee Peak, Irvine Ranch Conservancy 213 Comment
  UCR43238  Calochortus weedii var. intermedius Kathy Harper 1986-6-7 s.n. Orange Santa Ana Mtns., Modjeska Canyon Road just below Tucker Wildlife Sanctuary Comment
  RSA690976  Calochortus weedii var. weedii Scott D. White, Michael Honer 2003-5-29 9426 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  SD255709  Calystegia macrostegia D. E. Bramlet 2008-3-26 4121 Orange Santa Ana Mountains; Bee Canyon, Bowerman landfill site; 202 m south of the Bee Canyon access road and 151 m west of the active landfill entrance. 295 Comment
  CHSC19523  Calystegia macrostegia T. Casale 1974-4-11 2 Orange On road shoulder, ca 0.7 mi ne of the Mission San Juan Capistrano on Hwy 74. 36 Comment
  RSA710302  Calystegia macrostegia subsp. arida R. K. Brummitt 1998-5-23 19994 Orange 17 km NE of San Juan Capistrano on Rte. 74. 200 Comment
  SD152880  Calystegia macrostegia subsp. arida Steve Boyd, Tim Ross 1992-5-19 7419 Orange Southern Santa Ana Mountains, western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo. 365 Comment
  POM201721  Calystegia macrostegia subsp. cyclostegia L. M. Booth 1932-5-19 1081 Orange Newport Bay Comment
  JEPS47827  Calystegia sepium subsp. binghamiae L. M. Booth 1932-8-5 1359 Orange Huntington Beach Comment
  UC536955  Calystegia sepium subsp. binghamiae Lawrence M. Booth 1932-8-5 1359 Orange E of Huntington Beach (marsh border). Comment
  UCR16118  Calystegia soldanella N. J. Moriarty 1973-5-20 730520- 4 Orange Huntington Beach, 0.5 mi. north of Brookhurst Street on the W side of Pacific Coast Hwy (=Hwy 1) Comment
  UCR241074  Calystegia soldanella Dick Newell 2013-4-18 326 Orange South Coast, Bolsa Chica State Beach in Huntington Beach, on beach near Pacific Coast Hwy, 0.15 mi. west of Sea Point St., along bike path 5 Comment
  UCSB21666  Calystegia soldanella Keefe, Joseph 1967-3-26 Orange California Highway 1, Bolsa Bay, 0.4 mile south of Warner Avenue, Sunset Beach 1 Comment
  UCR157710  Camissonia Adrian Wolf 1998-5-15 294 A Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  HSC16412  Camissonia bistorta J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  RSA0039799  Camissonia bistorta Scott D. White, Amanda Duchardt 2003-5-1 9153 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  RSA186655  Camissonia bistorta Peter H. Raven 1962-4-28 17491 Orange 6.5 miles east of San Juan Capistrano 91 Comment
  RSA29907  Camissonia bistorta Louis C. Wheeler 1932-6-25 857 Orange Newport Bay. 3 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
  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
  RSA72203  Camissonia bistorta F. W. Peirson 1923-3-26 3411 Orange Canada Salada Creek, field about 1/4 mile from beach 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
  RSA254974  Camissonia cheiranthifolia subsp. suffruticosa C. W. Tilforth 1975-3-9 1039 Orange Salt water marsh at north-east shoreline of Upper Bay, Newport Beach. Comment
  RSA585053  Camissonia cheiranthifolia subsp. suffruticosa D. Atwood 1993-3-28 17712 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
  UCR191366  Camissonia hirtella A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34624 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  RSA75439  Camissonia ignota F. W. Peirson 1923-5-6 3505 Orange Trail to Santiago Peak, Santa Ana Ms., from Trabuco Canyon. 1067 Comment
  RSA609006  Camissonia lewisii L. M. Booth 1932-5-12 1034 Orange Newport Beach. Comment
  JEPS31711  Camissonia strigulosa Alice King March, 1908 Orange Anaheim Plains Comment
  RSA509  Camissonia strigulosa J. T. Howell 1928-4-7 900 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  SDSU3325  Camissoniopsis bistorta Wedberg 1958-3-29 176 Orange Along roadside of Pacific Coast Hwy. south of Laguna and 0.15 mi. north of Dana Pt. Historical Landmark #189. 58 Comment
  UCSB48375  Camissoniopsis bistorta Roberts, Fred 1982-5-22 Orange Dana Point: jct. of Stone Hill Dr. and Selva Road, 1.0km ESE Dana Hills High School; 1.7km SW Marco Forster Junior High School 40 Comment
  SD181437  Camissoniopsis cheiranthifolia subsp. suffruticosa Valeri Soza, Kevin Clark, et al. 2001-4-4 1111 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Reguge. 3 Comment
  UC306300  Camissoniopsis cheiranthifolia subsp. suffruticosa D. L. Crawford 1916-7-28 Orange Abalone Point Laguna Beach Region (sand dunes) Comment
  UC422961  Camissoniopsis cheiranthifolia subsp. suffruticosa D. L. Crawford 742 Orange Aliso Pt. Laguna Beach Region (shore cliffs) Comment
  UC635393  Camissoniopsis cheiranthifolia subsp. suffruticosa H. L. Mason 1926-4-25 2919 Orange five mi s Laguna Comment
  CAS-BOT-BC37125  Capsella bursa-pastoris Ira L. Wiggins 1966-2-5 20422 Orange Fairgrounds, Costa Mesa. Comment
  IRVC29088  Capsella bursa-pastoris Fred M. Roberts 1989-3-17 4203 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  UCR191439  Capsella bursa-pastoris A. C. Sanders, Fred M. Roberts 2008-4-8 34721 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA23656  Cardaria draba E. R. Johnson 1939-4-25 9496 Orange Santa Ana Canyon, Rancho Santa Ana, along Santa Fe RR tracks. 122 Comment
  JEPS51520  Cardionema ramosissimum Lawrence M. Booth 1932-5-24 1093 Orange Newport Bay Comment
  UCR177287  Cardionema ramosissimum Scott D. White, Amanda Duchardt 2003-5-1 9149 Orange Santa Ana Mountains, Slopes above the west side of Canada Gobernadora and adjacent small canyon to the west 122 Comment
  UCR215305  Cardionema ramosissimum Fred M. Roberts, Eliza L. Maher 2008-3-26 6794 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of Marine Institute, Dana Point Harbor 60 Comment
  UCR5159  Cardionema ramosissimum Barbara T. Gittins, O. F. Clarke 1966-3-19 902 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  CAS-BOT-BC281701  Carduus pycnocephalus Scott D. White; Brian Leatherman 1997-6-12 5330 Orange Santa Ana Mountain foothills. E of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca 2-4 miles E of I-15/Highway 74 jtn 75 Comment
  RSA581446  Carex alma Fred M. Roberts, Gordon Marsh 1989-5-12 4366 Orange Santa Ana Mountains: Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.0 kilometers WSW Laurel Springs. 436 Comment
  CAS-BOT-BC118489  Carex praegracilis Helen D. Geis 1902-4-1 504 Orange Unspecified Comment
  CAS-BOT-BC118504  Carex praegracilis Helen D. Geis 1902-4-1 503 Orange Santa Ana Comment
  RSA697497  Carex praegracilis Elisabeth Norland 1929-4-11 s.n. Orange Cypress. Comment
  CAS-BOT-BC118492  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana, Peat lands Comment
  SEINET8068417 Image available Carex praegracilis H. D. Geis 1902-1 s.n. Orange Orange County Comment
  RSA759112  Carex spissa Robt. Allen, Reginald Durant 2008-9-28 s.n. Orange Laurel Spring, just below Harding Truck Trail. Survey Waypoint #85. Comment
  RSA790709  Carex triquetra Keith E. Hoffmaster 1935-4-14 191 Orange Live Oak can. Comment
  UCR52608  Carex triquetra Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  UCR100457  Carpobrotus chilensis B. G. Pitzer 1996-4-30 2768 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA643429  Carthamus baeticus R. D. Goeden, D. W. Ricker 1965-7-7 s.n. Orange Puente Hills: Brea Blvd. at Tonner Cyn Rd. confluence of Brea and Tonner Canyons, NE edge of Brea 146 Comment
  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
  IRVC24127  Cassia artemisioides Gordon A. Marsh, K. G. Marsh 1988-8-5 Orange Lower Silverado Canyon wash, 0.8km E Black Star Canyon Rd.; alluvial scrub in gravel soil; area to be mined for gravel. Santa Ana Mountains Comment
  RSA734016  Castilleja affinis A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34609 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
  RSA425875  Castilleja affinis T. W. Minthorn 1928-4-1 s.n. Orange Balboa Palisades. Comment
  RSA789602  Castilleja affinis subsp. affinis Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49649 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] Comment
  RSA305821  Castilleja applegatei subsp. martinii James R. Shevock 1970-4-25 160 Orange Near Irvine Lake. 305 Comment
  UC138961  Castilleja densiflora subsp. gracilis LeRoy Abrams 1903-4-18 3266 Orange near Capistrano Comment
  UCR190964  Castilleja exserta A. C. Sanders, Fred M. Roberts 2008-4-22 35039 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
  HSC20518  Castilleja foliolosa S. M. Clapp 1966-4-10 31 Orange 4 mi. into Black Star Canyon 183 Comment
  RSA764938  Castilleja foliolosa Doris Bowers 1971-4-19 1681 Orange Black Star Canyon Indian Site 762 Comment
  SD181334  Castilleja foliolosa Valeria Soza, LeRoy Gross 1999-6-10 520 Orange Santa Ana Mountains; southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road, near ridgetop 1554 Comment
  UCR52606  Castilleja foliolosa Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  UCSB47636  Castilleja foliolosa Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail; on north side of road; 0.1 km south of Trabuco Peak; Santa Ana Mtns 1350 Comment
  RSA512755  Castilleja minor subsp. spiralis Walter Wisura, Bart O'Brien, Durant 1990-6-12 4448 Orange Along forest rd. 3SO4 fr. 2.15 miles Ortega Hwy. to Santiago Peak. Comment
  UC537012  Castilleja minor subsp. spiralis Lawrence M. Booth 1932-6-28 1217 Orange Bolsas Marsh 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
  RSA749793  Caulanthus heterophyllus D. E. Bramlet 2008-4-1 4145 Orange Ridgeline in Upper Hicks Canyon, 162m S of the Haul Road. 346 Comment
  UC1070888  Ceanothus R. St. John 1931-3-17 196 Orange N of Sierra Peak 609 Comment
  RSA733939  Ceanothus crassifolius R. H. McArthur 1934-2-10 s.n. Orange Santiago Canyon above Modjeska Comment
  RSA0054953  Ceanothus crassifolius Keith E. Hoffmaster 1935-4-19 851 Orange Santa Ana Mts. [Orange or Riverside]. Comment
  SD247715  Ceanothus crassifolius R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49698 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  RSA6582109  Ceanothus integerrimus T. A. Daubert 1991-5-19 663 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, office planter. Comment
  UC718385  Ceanothus integerrimus P. C. Everett 1935-6-18 7214 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  SD42450  Ceanothus integerrimus var. macrothyrsus Carl B. Wolf 1941-8-15 11153 Orange Santa Ana Mts. W. slope Santiago Truck Trail, 1.6 mi. below Main Divide Motorway 1219 Comment
  POM2821  Ceanothus integerrimus var. puberulus L. R. Abrams 1901-06 1843 Orange Mt. Santiago. Comment
  POM254870  Ceanothus leucodermis W. Pequegnat 1940-4-13 s.n. Orange SW face, Modjeska Peak. Comment
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Oct 25 2011
  IRVC26730  Ceanothus megacarpus subsp. megacarpus Peter A. Bowler 2003-4-26 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  RSA542422  Ceanothus megacarpus var. megacarpus Fred M. Roberts 1988-5-12 3963 Orange Anaheim Hills: Upper Deer Canyon, 7.7 km W Sierra Peak. 268 Comment
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Aug 23 2013
  SD255267  Ceanothus oliganthus Robert F. Thorne, E. W. Lathrop 1977-5-18 49760 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail. Comment
  UCSB31584  Ceanothus oliganthus var. oliganthus Proctor, Donald 1962-3-18 Orange Silverado canyon, Santa Ana Mts. 944 Comment
  UCSB48364  Ceanothus oliganthus var. oliganthus Roberts, Fred 1982-4-18 Orange SANTA ANA MTNS.: Upper Hot Springs Cyn., 0.1km SW Falcon Group Camp; 2.0km SE Los Pinos Peak 1075 Comment
  CHSC27881  Ceanothus oliganthus var. orcuttii Mike Cecchini 1978-3-23 3 Orange Ca. 1 km ne of Tucker Wildlife Sanctuary and .5 km se of Modjeska Reservoir, 20.5 km se of Tustin. 457 Comment
  LA44922  Ceanothus oliganthus var. sorediatus W. Pequegnat; 1938-5-6 sn Orange Santa Ana Mountains, Indian Truck Trail 944 Comment
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Aug 29 2015
  UCSB47589  Ceanothus oliganthus var. sorediatus Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, 2.0km WNW of Trabuco Peak, Santa Ana Mountains 1235 Comment
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Jan 23 2015
  UCR158810  Ceanothus papillosus subsp. roweanus A. C. Sanders, Mark A. Elvin 2005-9-2 31610 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
  RSA25945  Ceanothus papillosus var. roweanus B. D. Stark 1933-1-5 10030 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  RSA5303  Ceanothus papillosus var. roweanus B. D. Stark 1933-1-5 1754 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  UCD169753  Ceanothus papillosus var. roweanus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  CAS-BOT-BC53006  Ceanothus spinosus Carl B. Wolf 1941-6-27 10896 Orange Santa Ana Mts., San Juan Canyon, Ortega Highway 1 5/10 mi. W. of Riverside Co. line 274 Comment
  LA42097  Ceanothus spinosus Carl B. Wolf; 1936-7-8 8098 Orange Santa Ana Mountains, along Ortega Hwy, San Juan Canyon, 0.2 mi. W of Riverside County line 274 Comment
  RSA30495  Ceanothus spinosus L. R. Abrams 1901-6-16 1854 Orange Trabuco Canon. Comment
  RSA797598  Ceanothus spinosus Robert F. Thorne 1977-11-21 49995 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  UCR246516  Ceanothus spinosus Fred M. Roberts 2013-5-30 7776 Orange Lomas de Santiago, Santiago Creek Wash, at Santiago Canyon Road bridge, south side, 0.3 km west of the junction of Silverado and Santiago Canyon Roads 299 Comment
  OBI10327  Ceanothus tomentosus H. E. McMinn 1935-6-22 3927 Orange West of Covina, Santa Ana Mts Comment
  UCSB7051  Ceanothus tomentosus Lloyd, Robert 1959-4-17 Orange 10 miles south of West Corona on the Oak Flats Fire Road 792 Comment
  RSA0035211  Cenchrus setaceus Sandy Gray 1981-04 1 Orange Hwy. 142, Carbon Canyon Rd. 3 miles west of Cavida, Chino. Comment
  IRVC576  Centaurea melitensis J. B. Anderson 1966-4-22 611 Orange Upper Los Trancos Canyon. San Joaquin Hills Comment
  UCR80034  Centaurea melitensis Scott D. White 1992-10-1 953 Orange City of Brea, immediately north of Carbon Canyon Road & east of Placentia Ave. c. 1 mi (airline) S-SE of Tonner Canyon. 183 Comment
  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
  SD245254  Centaurea melitensis R. F. Thorne, W. E. Lathrop, W. Wisura 1977-7-8 49610 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station. Comment
  UCD130042  Centaurea melitensis C. Davidson; G. Benny 1971-6-15 1549 Orange Brea Canyon, 1/2 mile north of Central Avenue, along Brea Cr, near bridge. Comment
  RSA697664  Centaurium venustum Lucille Crawford 1932-4-23 s.n. Orange Laguna Beach. Comment
  RSA788969  Centaurium venustum Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49576 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  UCR230835  Centaurium venustum Dick Newell, Don Millar 2011-6-14 175 Orange South Coast, San Joaquin Hills, upper Buck Gully near Newport Beach 134 Comment
  CAS-BOT-BC288844  Centromadia parryi subsp. australis David D. Keck 1932-9-30 1897 Orange Ca 5 miles S of Santa Ana on road to Newport Beach Comment
  CAS-BOT-BC288847  Centromadia parryi subsp. australis John Thomas Howell 1927-6-30 2615 Orange 7 miles E of Long Beach 15 Comment
  UC935684  Centromadia parryi subsp. australis David D. Keck 1933-9-29 2537 Orange Seal Beach Seal Beach (alkaline fields adjoining tidelands) Comment
  LA47748  Cercocarpus betuloides W. E. Pequegnat; April 1937 49 Orange Santa Ana Mountains, Above Glen Ivy 396 Comment
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Jan 26 2015
  RSA172271  Cercocarpus betuloides Robert F. Thorne 1963-7-26 32844 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Cleveland National Forest 854 Comment
  RSA617695  Cercocarpus betuloides Scott D. White 1996-12-20 4637 Orange Above Modjeska Canyon: Proposed water tank site. 427 Comment
  SBBG14720  Cercocarpus betuloides var. betuloides P. H. Raven 1962-5-18 17753 Orange Main Divide Truck Trail at saddle ca. 1 mi N of Santiago Peak 1493 Comment
  CHSC116477  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
  UC583258  Cercocarpus minutiflorus Alice Eastwood 1936-4-5 Orange Santa Ana, Bixby Botanic Garden Santa Ana; , Bixby Botanic Garden Comment
  UC1584343  Cestrum nocturnum A. C. Sanders 1990-10-6 10187 Orange sw end Newport Bay (North Star County Beach area, ca 2 km inland of Hwy 1) Comment
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Jul 24 2007
  CAS-BOT-BC279501  Chaenactis artemisiifolia R. K. Brummitt 1998-5-23 19996 Orange San Juan Canyon, 22 km NE of San Juan Capistrano on Rte. 74 300 Comment
  RSA734852  Chaenactis glabriuscula A. C. Sanders, Mitch Provance 2008-5-20 35415 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  UCR191239  Chaenactis glabriuscula A. C. Sanders, Fred M. Roberts 2008-4-22 34989 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
  POM122612  Chaenactis glabriuscula var. glabriuscula Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canyon. Comment
  POM351783  Chaenactis glabriuscula var. glabriuscula M. B. Dunkle 1938-6-23 5376 Orange San Juan Canyon. Comment
  SFV17359  Chaenactis glabriuscula var. glabriuscula J. N. Hogue, J. D. Dilley, D. L. Bishop 1998-4-9 103 .1 Orange Santa Ana Mountains San Juan Canyon at San Juan Hot Springs. Just inside western boundary of Cleveland National Forest. 213 Comment
  UCR209359  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts, D. E. Bramlet, Megan Lulow 2008-4-4 6845 Orange Lomas de Santiago, Loma Ridge, at Calochortus Ridge near East Lomas Ridge Road, 0.7 km east of Bee Peak, Irvine Ranch Conservancy 509 Comment
  RSA0008379  Chaenactis glabriuscula var. orcuttiana I. M. Johnston 1924-7-10 s.n. Orange 1/2 mile S mouth Aliso Canyon. Comment
  RSA794564  Chamaecytisus prolifer Justin M. Wood 2010-3-31 1452 Orange Santa Ana Canyon: Chino Hills State Park property just west of Green River Golf Course on bluff south of the river. 131 Comment
  RSA184133  Chamaesyce albomarginata I. L. Wiggins 1965-11-6 20342 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  CDA28633  Chamaesyce maculata Mark A. Elvin, D. G. Kelch 2006-12-9 5301 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  POM21180  Chamaesyce nutans Helen D. Geis 1902-04 s.n. Orange Roadside, Santa Ana Comment
  UC570789  Chamaesyce polycarpa H. L. Mason 1926-4-25 2912 Orange 5 mi s Laguna Comment
  UCR242704  Chasmanthe floribunda Fred M. Roberts 2010-2-12 7174 Orange South Coast; San Joaquin Hills, Niguel Hill, Laguna Niguel, Sea View Park, 0.2 km WNW summit of Niguel Hill 251 Comment
  IRVC26749  Chasmanthe floribunda Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3169 Orange UCI Arboretum Southern Coastal 15 Comment
  UCSB52864  Cheilanthes clevelandii Roberts, Fred; Polek, M. 1982-11-7 Orange Santa Ana Mtns: Lion Canyon, Chiquito Basin Trail, 3.6km S Blue Jay Campground; 2.4km NNE Lower San Juan Campground 800 Comment
  IRVC19189  Cheilanthes newberryi Gordon A. Marsh, K. G. Marsh 1983-10-23 Orange Canyon Acres Canyon; in crevices on cliff north of creek. Laguna Beach Comment
  RSA685773  Cheilanthes newberryi T. R. Pray 1964-1-1 2052 Orange San Juan Canyon, near first bridge past National Forest entrance Comment
  JEPS89194  Chenopodium album Rimo Bacigalupi and L. Heckard 1962-3-25 8384 Orange old wagon track on hillslope near Handy Creek (3.5 mi e of El Modeno on road to Irvine County Park) Comment
  UC582777  Chenopodium album P. A. Munz 1936-6-30 14175 Orange 5 mi s Garden Grove Comment
  RSA5506  Chenopodium album C. B. Wolf 1932-6-28 3760 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  POM201674  Chenopodium ambrosioides L. M. Booth 830 Orange Santa Ana Canyon. Comment
  POM201802  Chenopodium berlandieri var. sinuatum L. M. Booth 1933-9-2 1389 Orange Santa Ana River; flood bed near coast of Orange. Comment
  IRVC399  Chenopodium murale L. Lewton 1965-4-19 Orange Corona del Mar High School. Newport Beach Comment
  UCSB18582  Chenopodium murale Reed, Robert 1964-3-26 Orange 150 feet N of the corner of Orangewood and Euclid Avenues, Anaheim 60 Comment
  RSA588716  Chlorogalum parviflorum Fred M. Roberts, Carol A. Roberts 1990-6-12 4681 Orange Santa Ana Mountains: tributary to Lower Fremont Canyon, 7.8 kilometer SW Sierra Peak. 320 Comment
  CSUSB404  Chlorogalum pomeridianum Cesareo Perez 1971-5-18 Orange South Mesa Drive & Lemon Street, in Villa Park. Comment
  UCR223955  Chorizanthe procumbens Fred M. Roberts 2008-4-2 6842 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, south of NE gate along bluff, 0.5 km west of Marine Institute, Dana Point Harbor 45 Comment
  RSA587871  Chorizanthe procumbens Fred M. Roberts, Carol A. Roberts 1990-5-16 4629 Orange Santa Ana Mts.: small canyon southeast side of Irvine Mesa, 3.5 km N Bolero Lookout. 396 Comment
  CAS-BOT-BC255253  Chorizanthe staticoides H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  RSA584706  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1988-5-26 4010 Orange Rancho Mission Viejo: hill above the confluence of Gabino Canyon and Christianitos Canyon, c.a. 1 km N TRW Testing facility. 157 Comment
  RSA0051264  Chorizanthe staticoides Keith E. Hoffmaster 1935-3-17 550 Orange Near El Toro (Trabuco rd). Comment
  CAS-BOT-BC502068  Chrysanthemoides monilifera R. E. Riefner, Jr. 2012-2-23 12 -44 Orange City of Laguna Beach, S of Goff Island, Montage Resort, Treasure Island Park, W of Pacific Coast Hwy 7 Comment
  CDA7383  Chrysanthemoides monilifera A. C. Sanders, Mark A. Elvin 2003-10-12 27324 Orange Southern Coastal Slope; Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. Comment
  IRVC27934  Chrysanthemoides monilifera A. C. Sanders, Mark A. Elvin 2003-10-12 27324 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  IRVC19481  Chrysothamnus nauseosus Karlin G. Marsh 1982-7-27 Orange Coal Canyon, west slope at mouth of canyon; in grassland. Santa Ana Mountains Comment
  POM186287  Cicuta bolanderi Joseph A. Ewan 1932-7-29 7729 Orange Large colony (plants 4-8 ft.) in backwater of marsh. Newport Lagoon Comment
  POM202172  Cirsium brevistylum L. M. Booth 1932-5-15 1199 Orange Santa Ana River, 1/2 miles from ocean Comment
  RSA0059655  Cirsium occidentale R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49655 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  IRVC14808  Cirsium occidentale var. californicum E. P. Cowper 1965-4-10 Orange Trabuco Canyon, passed Guard Station. Santa Ana Mountains Comment
  UCR109766  Cirsium occidentale var. californicum R. D. Goeden, Don W. Ricker 1965-6-21 s.n. Orange Dana Point 61 Comment
  RSA788908  Cirsium occidentale var. occidentale Fred M. Roberts 2008-6-26 7060 Orange Lomas de Santiago: Loma Ridge along West Loma Ridge Road, c.a. 1 km N Haul Rd., 2.5 km NNW Bee Peak, Irvine Ranch Land Conservancy. 382 Comment
  CDA7427  Cirsium vulgare Jack Hill 1957-7-3 Orange 0 Comment
  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
  POM153245  Clarkia bottae C. L. Hitchcock 1928-5-5 49 Orange Mouth of Santa Ana Canyon. 150 Comment
  RSA500  Clarkia bottae J. T. Howell 1927-6-17 155 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SDSU8634  Clarkia bottae Ruth Haaf, Josephine Morehous 1932-5-28 Orange Carbon Canyon Comment
Read comments
Jan 24 2013
  RSA652350  Clarkia deflexa Robert Lloyd 1948-5-22 s.n. Orange Santa Ana Canyon 226 Comment
  POM256966  Clarkia purpurea subsp. quadrivulnera W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  CAS-BOT-BC233842  Claytonia parviflora subsp. parviflora Ira L. Wiggins 1966-3-22 20548 Orange Bottom of Silverado Canyon, about 5 mi. above Ranger Station, Cleveland National Forest Comment
  RSA747620  Claytonia parviflora subsp. parviflora Fred M. Roberts 2008-4-16 6905 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  UCR218458  Claytonia perfoliata subsp. mexicana Robert DeRuff 2008-1 563 Orange South Coast, Upper Newport Bay, below intersection of Back Bay Dr. and East Bluff Dr. 12 Comment
  UC484254  Claytonia perfoliata subsp. perfoliata C. B. Wolf 1931-3-6 Orange Trabuco Campgrounds Santa Clara Mts., Trabuco Canyon (Trabuco Canyon, w slope of Santa Ana Mts) 609 Comment
  CAS-BOT-BC91328  Clematis lasiantha P. C. Everett 1935-6-18 7218 Orange Santa Ana Mountains, summit of Santiago Peak. 1731 Comment
  RSA663157  Clematis lasiantha R. E. Riefner 2000-6-1 20 -455 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  UC1178495  Clematis lasiantha Peter Kamb 1948-6-19 1106 a Orange Santa Ana Mts., Holy Jim Canyon 609 Comment
  JEPS5750  Clematis ligusticifolia Lawrence M. Booth 1932-7-21 1290 Orange Anaheim Creek Comment
  RSA5332  Clematis ligusticifolia B. D. Stark 1933-6-3 s.n. Orange Rancho Santa Ana near pear orchard 122 Comment
  RSA542411  Clematis ligusticifolia Fred M. Roberts, Karen Calloway 1988-1-27 3774 Orange San Juan Canyon, Hwy 74, 1.1km SW Lower San Juan Picnic Ground. 403 Comment
  HSC25249  Clematis pauciflora Richard Spjut 1972-2-21 2216 Orange Santa Ana Mtns., Cleveland National Forest 305 Comment
  RSA747621  Clematis pauciflora Fred M. Roberts 2008-4-16 6904 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8 km W Marine Institute, Dana Point Harbor. 45 Comment
  RSA607432  Cleome isomeris L. C. Wheeler 1932-6-25 868 Orange Newport Bay. 3 Comment
  UCR215281  Cleome isomeris Fred M. Roberts 2008-3-27 6812 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
  UCSB50632  Clinopodium chandleri Roberts, Fred 1982-7-9 Orange Santa Ana Mtns.: San Juan Canyon, 0.l km N Lower San Juan Picnic Ground 415 Comment
  CAS-BOT-BC180992  Cneoridium dumosum Cecil Hart 1928-5-27 s.n. Orange Laguna Beach Comment
  RSA449088  Cneoridium dumosum Unspecified s.n. Orange Laguna Beach. Comment
  RSA77080  Cneoridium dumosum F. W. Peirson 1919-11-18 2031 Orange South of Arch Beach, Comment
  RSA0045604  Collinsia bicolor Lucille Crawford 1932-5-1 981 Orange Silverado Canon. PR8. Comment
  RSA0117461  Collinsia concolor Naomi Fraga 2009-5-11 2713 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  UCR86994  Collinsia concolor B. G. Pitzer, Stu Hemstreet 1992-5-27 1954 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  POM88657  Collinsia heterophylla Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  RSA542501  Collinsia heterophylla Fred M. Roberts, Karlin G. Marsh 1987-5-14 3446 Orange Upper Trabuco Canyon, Trabuco Canyon Trail, 2 km NNW Los Pinos Peak 856 Comment
  RSA160456  Collinsia heterophylla John Olmsted 1958-6-10 163 Orange 1 mile past Oak Flat (SW) on Black Star canyon Rd. (turn S from US on Lincon in Crona). 762 Comment
  RSA594812  Comarostaphylis diversifolia subsp. diversifolia Fred M. Roberts 1993-3-11 4881 Orange Laguna Beach: South Laguna , Upper Hobo Canyon, 1.4 km NNW Aliso Peak. 201 Comment
  SD134460  Comarostaphylis diversifolia subsp. diversifolia Craig Reiser 1992-6-12 Orange Laguna Niguel, west-facing slope, NE corner of intersection of Crown Valley Parkway and Pacific Island Drive Comment
  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
  IRVC21613  Comarostaphylis diversifolia var. diversifolia Fred M. Roberts 1984-3-31 1317 Orange Niguel Hill, 1.0km ENE Aliso Peak, 2.1km SW Alicia Fire Station, Laguna Niguel 275 Comment
  CDA5373  Conium maculatum D. McDonald 1957-7-1 Orange Yorba Linda. 0 Comment
  SD127479  Conium maculatum Reid Moran, Gordon Marsh and Jack Reveal 1977-6-13 24237 Orange Willow Canyon, tributary of Laguna Canyon 124 Comment
  IRVC966  Convolvulus arvensis L. McCabe 1965-4-13 Orange Corona del Mar. Newport Beach Comment
  IRVC968  Convolvulus arvensis E. McRae 1965-4-3 Orange Costa Mesa Comment
  IRVC973  Convolvulus arvensis A. Weir 1965-5-9 Orange Mar Vista, east bluff. Newport Beach Comment
  RSA643432  Convolvulus arvensis R. D. Goeden, D. W. Ricker 1965-6-15 s.n. Orange NW of El Toro: Tustin Township, near Borrego Canyon Wash, SE edge of El Toro M.C. Air Station. 107 Comment
  UCR107845  Convolvulus arvensis Scott D. White 1998-3-24 6235 Orange Irvine. Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Av. and new freeway (Bonita Cyn) 37 Comment
  IRVC15625  Convolvulus simulans Karlin G. Marsh 1977-6-8 Orange south of UCI campus near parking lot 18. Irvine Comment
  RSA0013948  Convolvulus simulans Fred M. Roberts 2008-4-24 6927 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. 172 Comment
  RSA0127343  Convolvulus simulans Fred M. Roberts 2016-4-29 8046 Orange Lomas de Santiago: north of Santiago Canyon Road, southwest slope of hill marked 1332 on topo maps, just west of Irvine Lake, 1.6 km S Irvine Lake dam spillway and 0.8 km NW Irvine Lake Park. 335 Comment
  IRVC23904  Conyza coulteri Fred M. Roberts 1985-8-19 2127 Orange Mission Viejo: lateral to Engilish Canyon along Vista de Lago Drive; 3.4km ENE El Toro Fire Station. Southern Coastal 218 Comment
  RSA488131  Conyza coulteri Fred M. Roberts 1985-8-19 2127 Orange Crystal Cove State Park: Pelican Point, border of old Stable site, 0.1km from ocean 20 Comment
  UCR220081  Conyza coulteri Dick Newell, Don Millar 2010-9-15 039 Orange South Coast, Newport Beach, Back Bay Science Center, Shellmaker Island, 0.08 mi. west of Back Bay Drive 3 Comment
  SEINET4675783  Cordylanthus maritimus Robert F. Thorne 1975-1 Orange Comment
  RSA412318  Cordylanthus maritimus subsp. maritimus L. M. Booth 1932-7-1 1233 Orange Newport Bay Comment
  RSA486865  Cordylanthus maritimus subsp. maritimus P. R. Atsatt 1971-6-15 s.n. Orange Newport Beach, Back Bay Comment
  RSA0045606  Cordylanthus pilosus R. H. McArthur 1934-5-19 s.n. Orange Live oak Canyon. Comment
  POM8121A  Cordylanthus rigidus subsp. setiger Philip A. Munz 1923-9-7 7745 Orange Santiago Peak, Santa Ana Mountains. 1646 Comment
  UCD169163  Cordyline R. E. Riefner Jr. 2012-11-6 12- 532 Orange South Coast,City of Newport Beach, Newport Bay, North Star Beach, near Newport Aquatic Center, White Cliffs Drive/North Star Lane. 9 Comment
  RSA797439  Cordyline australis John Murphy 1938-6-6 s.n. Orange Birch Park Comment
  HSC5417  Corethrogyne filaginifolia J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  POM201858  Corethrogyne filaginifolia L. M. Booth 1933-8-26 1385 Orange Newport Lagoon. Comment
  RSA7470  Corethrogyne filaginifolia C. B. Wolf 1933-8-24 5394 Orange Summit of Santiago Peak, Santa Ana Mountains 1731 Comment
  RSA715701  Corethrogyne filaginifolia var. virgata Fred M. Roberts, Robert L. Allen 2005-10-15 6312 Orange entrance to Falcon Group Camp, 2.1km ESE Los Pinos Peak and 0.3km NE campground. 1008 Comment
  SEINET11843910  Corethrogyne filaginifolia var. virgata S. A. Thompson, Rawlins, J. E. 1988-1 5265 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  JEPS14133  Coriandrum sativum Alice King March 1908 Orange Anaheim Comment
  SD94964  Cotula australis J. Harry Lehr 1976-2-14 910 Orange Santa Anna Street north of State College Blvd., Anaheim. Comment
  CAS-BOT-BC287221  Cotula australis Ira L. Wiggins 1966-2-12 20439 Orange Orange grove on W side of State College Blvd, opposite Electra Way, Fullerton Comment
  CAS-BOT-BC287225  Cotula australis Ira L. Wiggins 1966-3-4 20491 Orange Shoulder of Peralta Ave, near junction of Newport Freeway and Riverside Highway Comment
  IRVC16765  Cotula coronopifolia J. B. Anderson 1966-4-16 582 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  HSC6500  Crassula connata J. W. Johnson 1961-2-19 Orange Newport Beach, above upper Newport Bay 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
  POM201720  Cressa truxillensis L. M. Booth 1932-5-18 1052 Orange Newport Bay Comment
  POM3812  Cressa truxillensis P. A. Munz 1918-5-4 2168 Orange Laguna Comment
  SEINET239007  Cressa truxillensis Unknown 1965-7-7 Orange Tustin township near Peters Canyon Channel E of Santa Ana Marine Corps Air Station (Tustin 7.5' Q.) 61 Comment
  UC277057  Cressa truxillensis D. L. Crawford Jul 1 1900-Aug 1 1900 Orange Laguna Beach Region Comment
  RSA4829  Croton californicus James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Station #1. Plant #3. Comment
  RSA748257  Croton californicus A. C. Sanders, Fred M. Roberts 2008-6-17 35518 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA785322  Croton californicus Dick Newell, Don Millar 2010-4-27 027 Orange Lomas de Santiago, Limestone Ridge Rd. at junction of Markel Spur Rd., overlooking The Sinks 427 Comment
  RSA0094683  Cryptantha clevelandii var. florosa F. M. Reed 1925-5-14 4986 Orange Aliso Canon. Comment
  RSA699343  Cryptantha intermedia Anonymous s.n. Orange Laguna Comment
  RSA732088  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-3-25 34546 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UC484240  Cryptantha intermedia C. B. Wolf 1931-3-6 Orange 0.5 mi above Trabuco Oaks (w slope Santa Ana Mts.); Santa Ana Mts., Trabuco Canyon Comment
  RSA681267  Cryptantha microstachys Scott D. White, Michael Honer 2003-5-29 9436 -A Orange 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
  UCR209368  Cryptantha microstachys Fred M. Roberts, Linda Farley 2008-3-28 6829 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  UCR209382  Cryptantha microstachys Fred M. Roberts, Linda Farley 2008-3-28 6825 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  UCR191005  Cryptantha muricata A. C. Sanders, Fred M. Roberts 2008-4-22 35024 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA0078870  Cryptantha muricata var. jonesii P. A. Munz 1923-6-14 7058 Orange Glen Ivy Trail to Santiago Peak. 1220 Comment
  JEPS46507  Cucurbita foetidissima L. M. Booth 1933-10-18 Orange Newport Comment
  RSA697187  Cucurbita foetidissima Anonymous 1933-1 s.n. Orange Vacant lot, Santa Ana. Comment
  RSA756062  Cucurbita pepo A. C. Sanders, Fred M. Roberts 2008-9-18 36087 Orange Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  CAS-BOT-BC80572  Cupressus forbesii C. B. Wolf; E. R. Johnson 1934-3-21 5578 Orange Rancho Santa Ana, Santa Ana Canyon, Santa Ana River 1/2 mi. S.W. of mexican houses 121 Comment
  RSA648664  Cupressus forbesii Richard E. Riefner 2000-8-3 20 -708 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and E of Windy Ridge main cypress forest 542 Comment
  RSA7199  Cupressus forbesii B. D. Stark 1933-3-17 4532 Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  RSA7203  Cupressus forbesii B. D. Stark 1933-1 4532 Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  UCR15234  Cupressus forbesii E. W. Lathrop 1976-11-17 7406 Orange Santa Ana Mtns., 4 mi west of Corona in Gypsum Canyon on the N slope of Sierra Peak. 610 Comment
  UCR140976  Cupressus sempervirens June Latting 1973-6-30 s.n. Orange Santa Ana Mountains, Beeks Place, south of Oak Flat 854 Comment
  RSA409761  Cuscuta californica George Price 1967-5-14 s.n. Orange Silverado Canyon Comment
  RSA5932  Cuscuta californica C. B. Wolf 1932-7-2 3820 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA788244  Cuscuta californica R. F. 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
  UCR193052  Cuscuta californica A. C. Sanders, Mitch Provance 2008-5-20 35405 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR170447  Cuscuta ceanothi Jeffrey Ross, R. Zaka, P. Ross 1998-5-2 34 Orange Irvine, San Joaquin Wildlife Reserve, San Diego Creek; highly disturbed wash, sandy with high seasonal variation in water level, c. 5 mi from Pacific Ocean 6 Comment
  RSA254969  Cuscuta salina C. W. Tilforth 1975-9-3 1037 Orange Northeast shoreline of Upper Bay, Newport Beach Comment
  RSA750002  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35320 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  SD234932  Cuscuta subinclusa A. C. Sanders, F. Roberts 2008-7-3 35688 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder, 1.2 mi. SE of Walnut Canyon Resevoir. 274 Comment
  UCR193793  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-7-3 35688 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
  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
  RSA528056  Cycloloma atriplicifolium A. C. Sanders 1990-10-6 10203 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  CAS-BOT-BC299753  Cynara cardunculus Carl B. Wolf 1936-7-8 8100 Orange Western end of Newport Bay, Coast Highway 9 Comment
  RSA0042531  Cynodon dactylon Fred M. Roberts 2013-5-30 7778 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
  RSA0089222  Cynodon dactylon Fred M. Roberts 2014-4-21 7864 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  UCR193008  Cynodon dactylon A. C. Sanders 2008-5-28 35443 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA5809  Cynodon dactylon C. B. Wolf 1932-6-28 3773 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA650406  Cynodon dactylon Norman Willis 1948-2-8 s.n. Orange East of Orange. 61 Comment
  RSA603290  Cynosurus echinatus Tony Bomkamp, R. E. Riefner 1997-6-18 97 -202 Orange Hidden Valley Ranch, Black Star Canyon, Santa Ana Mountins 671 Comment
  RSA21058  Cyperus eragrostis Ramon Valverde 1938-8-4 9446 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  CHSC116492  Cyperus eragrostis R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49572 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  UCSB52418  Cyperus eragrostis Roberts, Fred; Marsh, K. 1982-10-18 Orange Laguna Beach: east flank of Temple Hill; along east margin of Top of the World School 295 Comment
  RSA708531  Cyperus involucratus Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6108 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
  CAS-BOT-BC114243  Cyperus laevigatus John Thomas Howell 1927-7-18 2791 Orange Moist sandy soil, Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  SD227676  Cyperus niger ScottD. White, Brian Leatherman 1997-6-12 5320 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site. i.e., ca. 2 to 4 mi E of I-15/ Hwy 74 jtn. 46 Comment
  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
  UCSB56512  Cyperus niger Marsh, G.; Marsh, K. 1977-11-21 Orange Santa Ana Mts.; San Juan Hot Springs Comment
  RSA797602  Cyperus niger var. capitatus Robert F. Thorne 1977-11-21 49999 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA450865  Cyperus odoratus Gordon Marsh, Karlin G. Marsh 1977-11-21 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. Comment
  RSA718966  Cyperus odoratus Fred M. Roberts, Robert L. Allen 2006-10-8 6414 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  RSA725964  Cyperus odoratus R. E. Riefner 2005-10-27 05 -728 Orange South Coast: Huntington Beach, Huntington Central Park near Goldenwest St. 1 Comment
  RSA800673  Cyperus odoratus Justin M. Wood 2010-9-29 2748 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  RSA739272  Cyperus retrorsus R. E. Riefner 2007-9-14 07 -396 Orange Orange County: City of Orange, Santa Ana River at Taft St. alt 196ft 60 Comment
  SD260851  Cyrtomium falcatum R. E. Jr. Riefner 2012-1-16 12 5 Orange City of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road. 0 Comment
  IRVC27503  Datura stramonium Mark A. Elvin 2004-5-2 3417 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA733935  Datura stramonium Keith E. Hoffmaster 1934-6-27 5 Orange North Costa Mesa Comment
  UCR228804  Daucus pusillus Dick Newell, Don Millar 2011-5-24 165 Orange Peninsular Range; Santa Ana Mtns., above Outdoor Education Center on MWD service road, 1.6 miles NW (311 deg. ) of Irvine Lake dam 244 Comment
  UCSC001457  Daucus pusillus Peter Kamb 1948-6-19 1086 Orange Holy Jim Canyon, Santa Ana Mountains 610 Comment
  CAS-BOT-BC299329  Deinandra fasciculata Agnes M. Bowman 1899-6-1 s.n. Orange Orange 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
  UC75961  Deinandra fasciculata E. A. Zumbro 1902-1-1 388 Orange Comment
  CAS-BOT-BC131026  Deinandra paniculata John Thomas Howell 1931-6-1 6626 Orange San Clemente Comment
Read comments
Oct 4 2017
  SEINET8043519 Image available Deinandra paniculata R. E. Riefner Jr. 2008-1 08 -100 Orange Ladera Ranch, Cecil Pasture at Jerome Rd. 157 Comment
  RSA724056  Deinandra paniculata R. E. Riefner 2001-7-28 01 -375 Orange City of Laguna Beach, vicinity of Moulton Meadows Park. Comment
  RSA350609  Delphinium maritimum Anstruther Davidson 1910-4-20 2471 Orange Corona Del Mar. Comment
  CAS-BOT-BC121420  Delphinium parryi subsp. parryi P. C. Everett 1935-5-19 6871 Orange Santa Ana Mtns., Baker Canyon, West Ladd truck trail 304 Comment
  CAS-BOT-BC121546  Delphinium patens subsp. hepaticoideum Philip Alexander Munz; Robert Daniel Harwood 1920-4-24 3749 Orange Santa Ana Mtns, Sierra Canyon 365 Comment
  UC484251  Delphinium patens subsp. hepaticoideum C. B. Wolf 1931-3-6 1856 Orange 1/2 mi below Trabuco Camp Grounds (w slope of mts); Santa Ana Mts., Trabuco Canyon 609 Comment
  CAS-BOT-BC82947  Dendromecon rigida G. R. Campbell 1949-4-18 13449 Orange Santa Ana Mountains. Santiago Peak. Comment
  UC1126384  Dendromecon rigida J. B. Spring 1931-3-18 25 Orange Black Star Canyon Corona Quadrangle 609 Comment
  RSA5408  Dendromecon rigida subsp. rigida Carl B. Wolf 1932-12-19 4442 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA0065534  Dentaria tenella Marion P. Harthill 1972-1-25 s.n. Orange San Juan Watershed. Comment
  UCR267190  Descurainia pinnata subsp. halictorum Fred M. Roberts 2010-3-12 7183 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
  POM369419  Descurainia pinnata subsp. menziesii Albert J. Perkins 1921-3-15 s.n Orange Garden, Santa Ana. Comment
  RSA16418  Dicentra chrysantha Percy C. Everett 1935-5-19 6870 Orange Santa Ana Mountains, Baker Canyon, West Ladd Truck trail. 305 Comment
  POM172076  Dicentra ochroleuca Unspecified 1930-04 s.n. Orange Santa Ana Mts. Comment
  UCR103218  Dichelostemma capitatum Scott D. White 1997-2-19 4699 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR190992  Dichelostemma capitatum A. C. Sanders, Fred M. Roberts 2008-4-22 35008 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
  UCR17051  Dichelostemma capitatum subsp. capitatum R. Stoltz 1969-4-17 28 Orange Southern Coast, Newport Beach, 0.8 mi west of the junction of Backbay Dr. and Jamboree Rd 30 Comment
  UCR37799  Dichondra occidentalis Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  SD152749  Digitalis purpurea Steve Boyd, Tim 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 homestea. 351 Comment
  RSA731938  Digitaria ciliaris Fred M. Roberts, Sandy Leatherman 2007-11-27 6697 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA0019267  Dimorphotheca ecklonis Fred M. Roberts, Sandra Leatherman, Jennifer Pareti 2009-4-14 7149 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  RSA699271  Diosma ericoides Ruth Greenwald, Virginia Pritchard 1938-05 s.n. Orange Santa Ana. Comment
  SJSU1768  Diplacus aurantiacus G. B. Youngberg 1956-3-27 185 Orange Irvine Park c. 8 mi E of Orange 259 Comment
  CAS-BOT-BC152262  Diplacus clevelandii P. C. Everett 1936-8-28 8233 Orange Santa Ana Mts., Main Divide Motorway, head of Trabuco Canyon 1158 Comment
  CAS-BOT-BC152059  Diplacus longiflorus John Thomas Howell; Alice Eastwood 1937-4-24 3929 Orange 2 miles east of San Juan Hot Springs Comment
  RSA0045523  Diplacus puniceus Stephen Bruff s.n. Orange Lemon H[e]ights [a neighborhood of Tustin?]. PR8. Comment
  POM21171  Diplotaxis tenuifolia Helen D. Geis 1902-12-12 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC208626  Distichlis spicata Bernard G. G. de Retz 1961-5-16 47611 Orange Huntington Beach Comment
  RSA609758  Distichlis spicata L. C. Wheeler 1946-9-28 6382 Orange Newport Bay: 1/2 mile north of main coast highway. 2 Comment
  UCSB47954  Distichlis spicata Roberts, D. 1980-5-4 Orange North end of Camino Capistrano Rd; 2nd telephone pole from the end 30 Comment
  UCR107856  Dodecatheon clevelandii Scott D. White, Brian Leatherman 1998-1-26 6063 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  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
  IRVC8762  Draba cuneifolia var. integrifolia Charles W. Sexton 1965-2-12 Orange Newport Beach. Southern Coastal Comment
  RSA701645  Drymocallis glandulosa Keith E. Hoffmaster 1934-4-22 s.n. Orange Santa Ana Mountains Comment
  RSA701656  Drymocallis glandulosa Keith E. Hoffmaster 1935-5-5 s.n. Orange San Juan Canyon., Santa Ana Mts. Comment
  UCSB48384  Drymocallis glandulosa var. glandulosa 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
  POM626  Drymocallis glandulosa var. wrangelliana I. M. Johnston 1918-4-27 1893 Orange Laguna Beach, San Joaquin Hill 15 Comment
  IRVC16264  Dryopteris arguta L. Fox 1978-5-9 s.n. Orange Upper Trabuco Canyon. Santa Ana Mountains Comment
  RSA698474  Dryopteris arguta R. H. McArthur 1934-4-14 s.n. Orange Laguna Canyon. Hillside. Comment
  UC2030238  Dryopteris arguta J. Metzgar with K. Pryer and M. Windham 2006-4-25 177 Orange Cleveland National Forest: Hot Springs Canyon Comment
  UCR159829  Dudleya cymosa Valerie Soza, LeRoy Gross 1999-6-7 473 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
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Jun 15 2013
  POM6592  Dudleya lanceolata P. A. Munz 1919-5-4 s.n. Orange Laguna canyon Comment
  RSA598971  Dudleya lanceolata Scott D. White 1997-3-28 4842 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA716782  Dudleya lanceolata Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6063 Orange Santa Ana Mtns.: Holy Jim Cyn.: Holy Jim Trail, 3.1km SE summit of Santiago Peak. 695 Comment
  UC536907  Dudleya lanceolata Lawrence M. Booth 1932-6-9 1188 Orange Newport Bay Comment
  UCR175053  Dudleya lanceolata Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  RSA542536  Dudleya multicaulis Fred M. Roberts, Kathy Keane 1988-5-25 4000 Orange Rancho Mission Viejo: Lower Canada Gobernadora, ca. 2.4 kn SW Cliff Survey Marker. 110 Comment
  RSA649678  Dudleya multicaulis R. E. Riefner 2000-5-6 20 -407 Orange NCCP North Ranch Policy Plan Area: NE property; along powerline on National Forest boundary. 582 Comment
  RSA773547  Dudleya multicaulis Fred M. Roberts 2008-6-10 7037 Orange Lomas de Santiago: Loma Ridge, above and to the west of the Haul Road, 2.3 km NNW Bee Peak. Irvine Ranch Conservancy 429 Comment
  SD115480  Dudleya multicaulis H. A. Wier 1978-4-14 Orange Southwest facing bank of canyon below access road, TRW facitilty, San Clemente. Comment
  UCSB50638  Dudleya pulverulenta Roberts, Fred 1982-7-8 Orange Niguel Hills; Niguel Hill, above Pacific Island Road, 1.4 km. ESE Aliso Peak; 2.6 km. SSW Alicia Fire Station 205 Comment
  POM93  Dudleya saxosa subsp. aloides P. A. Munz 1919-5-5 2796 Orange San Gorgonio Pass. Comment
  CAS-BOT-BC109742  Dudleya stolonifera R. V. Moran 1949-7-2 3287 Orange Near mouth of Aliso Canyon, south of Laguna Beach. Comment
  LA202504  Dudleya stolonifera Reid Moran; 1949-7-2 3287 Orange near mouth of Aliso Canyon, S of Laguna Beach Comment
  SD114480  Dudleya stolonifera Darley F. Howe 1967-5-30 4363 Orange Near mouth of Aliso Canyon. Comment
  UCR67711  Dudleya stolonifera Reid Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  POM277740  Dudleya viscida H. G. Rush 1948-5-14 102 Orange San Juan Canyon, 1/4 mile below San Juan Hot Springs 305 Comment
  CAS-BOT-BC197029  Echinochloa colona Ira L. Wiggins 1965-10-2 20269 Orange Curbway at corner of Longview Drive and Dorothy Lane, Fullerton Comment
  RSA184152  Echinochloa colona I. L. Wiggins 1965-10-24 20295 Orange Yorba Linda Blvd. 1/4 mi. E of State College Blvd., Fullerton. Comment
  CAS-BOT-BC197180  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20261 Orange At west end of Orangethorpe Estates subdivision, near Atwood Comment
  RSA731944  Echinochloa crus-galli Fred M. Roberts, Sandy Leatherman 2007-11-27 6691 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA443850  Echinochloa crus-galli Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel (No. C05).. Comment
  RSA6068  Echinochloa crus-galli C. B. Wolf 1932-6-13 3720 Orange Fullerton, Rose Drive 53 Comment
  IRVC26902  Echinodorus berteroi D. E. Bramlet 1990-10-17 2063 Orange Delhi Channel at the intersection of Irvine Ave. & Mesa Drive, just W of Newport Beach Golf Course. 6 Comment
  POM48523  Echinodorus berteroi F. M. Reed 1924-8-15 4963 Orange Laguna Lake bed - Laguna canyon. Comment
  SD156762  Ehrharta calycina Unknown 1940-4-19 Orange San Clemente Comment
  RSA724049  Ehrharta erecta R. E. Riefner 1994-5-23 94 -387 Orange City of Seal Beach, San Gabriel River at River's End Cafe, First St. and Ocean Blvd. 3 Comment
  SBBG128733  Ehrharta erecta R. E. Riefner Jr. 2012-2-1 12 -15 Orange Dana Point Harbor, vicinity of Puerto Pl and Dana Point Harbor Drive; Dana Point 2 Comment
  RSA799624  Eleocharis acicularis Justin M. Wood 2011-4-12 3664 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  CAS-BOT-BC168149  Eleocharis montevidensis A. C. Sanders; Fred M. Roberts; Michelle Balk 2006-7-20 33003 Orange Peninsular Range; Santa Ana Mtns.: San Juan Canyon, from Lower San Juan Picnic Area to ca. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  SD234737  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33003 Orange Peninsular Range; Santa ana Mtns.: San Juan Canyon, from Lower San Juan Picnic Area to ca. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line. Canyon bottom. 366 Comment
  UCR174225  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33003 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
  RSA665951  Eleocharis palustris Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5422 Orange Rancho Mission Viejo: South of San Juan Creek, 0.4km ESE Median Rancho Survey Marker. PCR Vernal Pool 7. 238 Comment
  RSA642520  Eleocharis radicans D. E. Bramlet 1998-7-16 2653 Orange San Juan Creek, City of San Juan Capistrano. 2.3km east of the San Diego freeway (I-5). 91m south of the end of Avenida Siega and 152m north of San Juan Creek Road. 38 Comment
  RSA748263  Elymus X gouldii A. C. Sanders, Mitch Provance 2008-5-20 35396 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC206791  Elymus glaucus subsp. glaucus Le Roy Abrams 1901-6-1 1822 Orange Santiago Pk. 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
  RSA731987  Emmenanthe penduliflora A. C. Sanders, Fred M. Roberts 2008-4-8 34776 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  CAS-BOT-BC131226  Encelia californica Helen D. Geis 1902-1-1 540 Orange Santiago Cr. Comment
  CAS-BOT-BC131228  Encelia californica P. A. Munz 1920-4-11 3816 Orange Santa Ana River [Canon] Canyon near Rincon 304 Comment
  HSC25235  Encelia californica Richard Spjut 1972-2-22 2227 Orange W of the Cleveland National Forest in the Santa Anna Mtns. along Hwy. 74 152 Comment
  UCR193065  Encelia californica A. C. Sanders, Fred M. Roberts 2008-5-6 35216 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR219803  Encelia californica Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  UCSB48067  Encelia californica Fritzke, S.; Roberts, Jr., Fred 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
  UC1118064  Encelia californica H. E. Norton 1931-3-1 53 Orange Corona #1 Corona Quadrangle Comment
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Apr 24 2014
  UCR274182  Epilobium brachycarpum Dick Newell, Peter Wetzel 2016-6-7 428 Orange Peninsular Range; Santa Ana Mtns., Silverado Canyon, 0.1 mile NE of Blackstar Canyon Rd. intersection, near Silverado Creek 297 Comment
  SD236344  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. 320 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-BC166348  Epilobium canum subsp. canum David D. Keck 1932-9-30 1905 Orange Dana Point, near San Juan Capistrano Comment
  JEPS31486  Epilobium canum subsp. canum L. M. Booth 1932-7-27 1320 Orange Corona del Mar Comment
  UC1543089  Equisetum arvense Donald G. Nelson 1935-4-6 265 Orange e San Juan Capistrano (canyon 200-300 ft below main hwy. ca. 4 mi from summit); Santa Ana Mts., San Juan Canyon Comment
  UCR174229  Equisetum arvense A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33038 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  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
  SEINET1908663  Eragrostis A. C. Sanders, Fred M. Roberts 2008-1 36091 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge. 1000 Comment
  UCD64312  Eragrostis pectinacea Beecher Crampton 1965-10-27 7583 Orange 2 miles E of Irvine, UC South Coast Field Station. Comment
  RSA436020  Eremocarpus setiger Christopher Davidson, G. Benny 1971-6-15 1553 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  RSA436021  Eremocarpus setiger F. R. Fosberg 1931-6-21 S- 5081 Orange Lower Santiago Canyon. Comment
  SEINET7909394  Eriastrum eremicum G. A. Wojciechowski 1967-1 Orange San Juan Capistrano 610 Comment
  UC52799  Eriastrum sapphirinum W. C. Blasdale June 1891 Orange Santiago Canyon Comment
  UC947527  Eriastrum sapphirinum A. G. Vestal 1947-6-12 Orange below terrace; Trabuco Canyon Comment
  RSA0121313  Eriastrum sapphirinum subsp. dasyanthum P. A. Munz 1949-5-26 13374 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains 732 Comment
  RSA699268  Ericameria palmeri J. Vlahos 1933-10-5 s.n. Orange French Hill. 5 mi. east of airport. Comment
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Jan 29 2015
  OBI45880  Ericameria palmeri var. pachylepis B. Pitzer, D. Hawks 1986-10-21 345 Orange Lomas de Santiago, ca. 10 mi E of Santa Ana, in hills N and E of south Coast Gun Club on Jeffrey Rd in Hicks Canyon 183 Comment
  UCR145986  Ericameria palmeri var. pachylepis June Latting 1977-1-12 s.n. Orange Chino Hills, Tonner Canyon 213 Comment
  CAS-BOT-BC294347  Ericameria palmeri var. palmeri Scott White 1992-10-1 950 Orange Vicinity of city of Brea, immediately N of Carbon Canyon Road & E of Placentia Avenue. +-1 mi. (airline) S/SE of Tonner Canyon 182 Comment
  RSA167489  Ericameria parishii R. F. Thorne, John Olmsted 1963-7-26 32830 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  UCSB48195  Erigeron foliosus Roberts, Fred 1981-6-26 Orange Santa Ana Mtns.; Viejo Cyn., 0.5km N Calif. Rte. 74; 2.7km ENE San Juan Guard Station 317 Comment
  RSA0025300  Erigeron karvinskianus R. E. Riefner Jr. 2013-1-16 13 -15 Orange City of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach. 7 Comment
  UCR188939  Eriobotrya japonica Robert DeRuff 2004-1 546 Orange Newport Beach, Upper Newport Bay, Big Canyon on north-facing bank below Park Newport Apartments 16 Comment
  CAS-BOT-BC189070  Eriodictyon crassifolium H. M. Hall 1913-5-28 9402 Orange Santiago Canon [Canyon] Comment
  UCR910  Eriodictyon crassifolium R. G. Sullivan 1972-4-16 720416- 4 Orange Santa Ana River Channel, river bottom near Coal Canyon Road 122 Comment
  UCSB49524  Eriodictyon crassifolium Jenkins, Scott 1983-3-4 Orange 2 miles up Modjeska Canyon Rd. on west side 243 Comment
  CAS-BOT-BC189119  Eriodictyon crassifolium var. crassifolium Le Roy Abrams 1901-4-1 1363 Orange San Fernando Mountain Comment
  RSA734652  Eriodictyon crassifolium var. crassifolium A. C. Sanders, Fred M. Roberts, Amber O Neal, D. E. Bramlet 2008-5-9 35298 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  IRVC27012  Eriogonum elongatum Peter A. Bowler 2003-4-20 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  UCR250138  Eriogonum elongatum Dick Newell, Judy Booth 2013-12-25 347 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest, at end of paved roadway 899 Comment
  SDSU6522  Eriogonum fasciculatum B. Mastro 1966-9-10 188 Orange 1 mile south of San Clemente on Hwy. 5, near Capistrano. Comment
  RSA0027780  Eriogonum fasciculatum R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49677 -a Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] 457 Comment
  RSA649079  Eriogonum fasciculatum subsp. fasciculatum Karl Price 1988-4-28 10 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
  UCR159778  Eriogonum fasciculatum subsp. foliolosum Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh Comment
  UC1090379  Eriogonum fasciculatum var. fasciculatum Milo S. Baker 1958-5-15 13301 Orange Newport Bay Comment
  UC527456  Eriogonum fasciculatum var. fasciculatum C. B. Wolf 1931-8-9 2300 Orange 1/2 mi s (1st small can.) Corona Del Mar beach (bottom of ravine near ocean) 7 Comment
  UCR239622  Eriogonum fasciculatum var. fasciculatum Fred M. Roberts 2012-4-24 7498 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  RSA5381  Eriogonum fasciculatum var. foliolosum B. D. Stark 1932-12-30 4458 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  UCR131885  Eriogonum fasciculatum var. foliolosum J. Mallory, V. McCoy 1995-7-3 6454- 98 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
  RSA791469  Eriogonum fasciculatum var. foliolosum Keith E. Hoffmaster 1928-5-29 313 Orange San Onofre. CP5. Comment
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Nov 19 2013
  SEINET6418404  Eriogonum fasciculatum var. foliolosum W. Halvorson 1969-8-22 360 Orange 8 miles east of El Toro 61 Comment
  UCD100835  Eriogonum parvifolium A. C. Sanders 1990-10-6 10179 Orange Newport Bay, Westcliff Park area on the SW end of the bay, 1 km inland of Hwy 1. 1 Comment
  CAS-BOT-BC263017  Eriogonum thurberi Helen D. Geis 1902-1-1 532 Orange Santiago Cr. Comment
  UC1618033  Eriogonum thurberi Donald G. Nelson 1935-6-2 365 Orange n. Brea (mouth of Brea Canyon, on Tonner lease); Brea Canyon, Tonner lease Comment
  CAS-BOT-BC297326  Eriophyllum confertiflorum A. M. White 1974-6-3 74 -671 Orange Ca 20 miles E of Santa Ana, N of Silverado Canyon Comment
  CAS-BOT-BC297328  Eriophyllum confertiflorum John Thomas Howell 1927-6-1 2402 Orange Southern Puente Hills at the Santa Ana Canon 152 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
  UCR230227  Eriophyllum confertiflorum Dick Newell, Don Millar 2011-3-15 083 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash along Limestone Cyn. Rd. 252 Comment
  IRVC15150  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey 1968-7-9 380403 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  IRVC21387  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey 1968-7-9 408 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UC1118325  Eriophyllum confertiflorum var. confertiflorum J. B. Spring 1931-4-14 33 Orange Cold Spring Harbor Elsinore Quadrangle, Cold Spring Harbor 457 Comment
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Jan 11 2007
  RSA680533  Erodium brachycarpum Scott D. White 2003-3-21 8804 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA684304  Erodium moschatum Fred M. Roberts, David E. Bramlet 2003-3-13 5602 Orange Donna O Neill Land Conservancy: Flagpole Meadow, upper Shady Cyn. W of Cristianitos Canyon, 1,500m NW Sycamore Gate and 1,220m W Cristianitos Rd. 173 Comment
  UCR193823  Erodium moschatum A. C. Sanders, Fred M. Roberts 2008-7-16 35868 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  RSA423  Erodium moschatum J. T. Howell 1928-2-7 824 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  CHSC1770  Erythranthe guttata S. Westerberg 1938-4-1 Orange San Juan canyon. Comment
  RSA722436  Eschscholzia californica Gray 1912-05 s.n. Orange El Modena. Comment
  UCR50903  Eucalyptus amplifolia Dave Goodward 1987-4-16 7 Orange Irvine Ranch, Boy Scout Camp in Peters Canyon, east of Tustin and c. 1 mi NE of the Irvine Blvd/Myford Road intersection 122 Comment
  CDA21564  Eucalyptus camaldulensis Mark A. Elvin, D. G. Kelch 2006-12-9 5316 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  UCR210361  Eucalyptus camaldulensis T. B. Salvato, Billy Deane 2006-10-16 1928 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  UCR198527  Eucalyptus erythrocorys R. E. Riefner Jr. 2007-9-27 07- 414 Orange South Coast, city of Laguna Niguel, along Forbes Road near Crown Valley Parkway, west of Hwy I-5 Comment
  RSA0012821  Eucalyptus polyanthemos A. C. Sanders, Fred M. Roberts 2008-9-18 36079 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  CDA23092  Eucalyptus utilis Mark A. Elvin, D. G. Kelch 2006-12-9 5305 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  SD175835  Eucalyptus utilis D. G. Kelch 2006-12-9 06 538 Orange Along Newport Back Bay Dr. in side canyon 6 Comment
  UCR182895  Eucalyptus utilis Dean Kelch 2006-12-9 06 .538 Orange Along Newport Back Bay Dr. in side canyon 6 Comment
  HSC13690  Eucrypta chrysanthemifolia J. W. Johnson 1961-4-2 Orange Newport Beach, along Upper Newport Bay. Comment
  RSA3173  Eucrypta chrysanthemifolia Carl B. Wolf 1932-3-8 2690 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  UCR190979  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-4-22 34995 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
  UCR281551  Eucrypta chrysanthemifolia Mitch Provance, Jeremiah George 2017-3-20 317- 125 Orange West Coyote Hills, Fullerton, west side of Gilbert Street on land previously occupied by oil fields. 138 Comment
  UCSC000889  Eucrypta chrysanthemifolia Peter Kamb 1948-6-19 1096 Orange damp rocky base of slide into canyon bottom, Chaparral scrub canyon bottom - Snata Ana Mts., Holy Jim Canyon Comment
  JEPS1726  Eucrypta chrysanthemifolia var. chrysanthemifolia Alice King 1908-1 Orange Anaheim Comment
  RSA683068  Eucrypta chrysanthemifolia var. chrysanthemifolia Fred M. Roberts 2003-3-19 5603 Orange Donna O Neill Land Conservancy: Ridges west of Cristianitos Cyn., 1,750m NNW Sycamore gate and 315m W Cristianitos Rd. (Canada Gobernadora) 192 Comment
  SEINET7073420  Eucrypta chrysanthemifolia var. chrysanthemifolia A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UC537165  Eucrypta chrysanthemifolia var. chrysanthemifolia L. M. Booth 1932-5-19 1063 Orange Newport Beach Comment
  UCR26989  Euphorbia crenulata E. W. Lathrop 1966-4-6 6143 Orange Cleveland National Forest, Trabuco Oaks, Trabuco Canyon 396 Comment
  POM186306  Euphorbia misera Joseph A. Ewan 1932-7-28 7708 Orange Corona Del Mar Comment
  POM201865  Euphorbia misera L. M. Booth 1932-7-23 1300 Orange Corona del Mar, Newport Beach. Comment
  RSA0029993  Euphorbia misera R. E. Riefner Jr. 2013-1-16 13 -16 Orange City of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach. 3 Comment
  RSA5354  Euphorbia misera B. D. Stark 1932-12-9 4425 Orange Dana Point Comment
  SD126574  Euphorbia misera Virginia S. Moran, Karen L. Miner 1989-1-29 Orange city of Newport Beach, Corona de Mar State Beach, Little Corona, ca. 1000 meters east of Poppy Ave., on SSW-facing sandy ocean bluff 24 Comment
  SD237416  Euphorbia misera T. B. Salvato 2010-9-27 5106 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Re., beyond the end of Green Lantern St., overlooking Dana Point Harbor. 52 Comment
  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
  RSA731929  Euphorbia peplus Fred M. Roberts, Sandy Leatherman 2007-11-27 6681 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  SEINET3089588 Image available Euphorbia peplus J. Harry Lehr 1974-5-26 1245 Orange Corner State College Blvd. & Balsam St. 30 Comment
  SFV16198  Euphorbia peplus R. K. Stachelek, B. Anderson 1995-3-23 48 Orange Newport Beach, Upper Newport Bay. Freshwater marsh adjacent to Jamboree Road. Comment
  RSA734598  Euphorbia polycarpa A. C. Sanders, Fred M. Roberts 2008-5-6 35228 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  RSA0104830  Euphorbia polycarpa var. polycarpa Mike McCartin 1965-4-4 s.n. Orange Silverado Canyon. Comment
  RSA588849  Euphorbia tirucalli Fred M. Roberts 1989-10-4 4434 Orange South Laguna: south of, and near west end of Monterey Street, 0.6km W Aliso Peak. 33 Comment
  JEPS30706  Euthamia occidentalis Peter H. Raven 1961-10-15 16856 Orange just n of U.S. Highway 91 along dyke along road to Yorba Linda 114 Comment
  RSA234503  Euthamia occidentalis James Henrickson 1970-9-5 5343 Orange 3 miles NW of Huntinton Beach; NW of Bolsa Chica Salt Marsh. Sea level. 0 Comment
  UCR239641  Festuca Fred M. Roberts 2012-5-9 7558 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
  UCR192227  Festuca microstachys A. C. Sanders, Fred M. Roberts 2008-5-6 35259 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  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
  SD28080  Festuca temulenta E. R. Johnson 1932-5-18 3638 Orange Rancho Santa Ana Botanic Garden, east edge of grain field bordering Rancho. 198 Comment
  RSA716499  Ficus carica Fred M. Roberts, Amber Oneal 2004-8-18 6098 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
  CAS-BOT-BC487556  Ficus microcarpa R. E. Riefner, Jr. 2014-2-24 14 -66 Orange City of Dana Point, W ca 0.1 mi from Island Way along Dana Point Harbor Dr., cliff immediately S of Santa Clara Ave. and Amber Lantern St. 11 Comment
  CAS-BOT-BC500431  Ficus microcarpa R. E. Riefner, Jr. 2014-7-13 14 -222 Orange City of Irvine, S side of Red Hill Ave. bridge, E of 405 Freeway N-bound lane 31 Comment
  UCR267278  Ficus microcarpa R. E. Riefner Jr. 2014-8-8 14- 273 Orange City of Laguna Beach, east side of South Coast Highway near Diamond St. 25 Comment
  CAS-BOT-BC474735  Ficus rubiginosa R. E. Riefner, Jr. 2015-8-27 15 -356 Orange City of Laguna Beach, S side of Beach St. E of Broadway Ave (Hwy 133) 7 Comment
  RSA649064  Filago arizonica D. E. Bramlet 2000-4-17 2986 Orange West of Blind Cyn. and North of Irvine Park. The site is 1.9 km west of Blind Canyon and 366m north of Irvine Park. This locality is 31m southwest of the MWD access road. 268 Comment
  RSA736576  Filago californica Keith E. Hoffmaster 1935-4-14 597 Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. Comment
  UCR191334  Filago californica A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34649 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
  UCR192469  Filago californica A. C. Sanders, Fred M. Roberts 2008-3-25 34537 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR102018  Filago gallica B. G. Pitzer 1997-3-25 3021 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR192628  Filago gallica A. C. Sanders, Fred M. Roberts 2008-3-25 34526 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  JEPS12254  Foeniculum vulgare Lawrence M. Booth 1932-8-5 1346 Orange Newport Beach Comment
  RSA791474  Foeniculum vulgare Keith E. Hoffmaster 1928-1-2 717 Orange Santa Ana. CP3. Comment
  HSC87010  Frangula californica Reid Moran 1975-7-18 22596 Orange Bottoms of Upper Trabuco Canyon, Santa Ana Mtns. 725 Comment
  UCSB48032  Frangula californica subsp. californica Roberts, Fred 1980-7-7 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.3km ENE San Juan Guard Station; 0.4km W Bench Mark 1100 315 Comment
  RSA798541  Frangula californica subsp. cuspidata Robert F. Thorne, E. W. Lathrop 1977-5-18 49740 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  RSA391398  Frankenia grandifolia Albert J. Perkins 1923-6-28 s.n. Orange Laguna Beach. Comment
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Jul 15 2013
  RSA391402  Frankenia grandifolia E. Yale Dawson 1948-8-15 5108 Orange Bolsas bay Comment
  RSA5241  Frankenia grandifolia Carl B. Wolf 1932-9-13 4029 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd. 8 Comment
  RSA0055057  Frankenia grandifolia Jim Shevock 1970-10-19 522 Orange Newporft Back Bay. 3 Comment
  IRVC27495  Frankenia salina Mark A. Elvin 2004-5-2 3402 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  LA205391  Frankenia salina Lawrence M. Booth; 1932-7-27 1324 Orange Newport Beach, Corona del Mar Comment
  RSA539403  Frankenia salina Fred M. Roberts Jr., Karen Swirsky 1988-6-28 4106 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  UC1494288  Frankenia salina Molly Whalen and Liz Evans 1978-6-2 510 Orange near Bolsa Chica Visitors Center (just off Hwy 1) Comment
  UCR89689  Frasera parryi Don Pendleton 1992-5-16 92- 18 Orange Santa Ana Mtns., Cleveland National Forest, NW of El Cariso, on trails near Falcon Group Camp 823 Comment
  UCR261699  Fraxinus dipetala Dick Newell, Judy Booth 2014-5-15 371 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 0.87 road miles east of the lower Maple Springs gate 623 Comment
  CDA23578  Fraxinus uhdei T. McCrainie, Mark A. Elvin 2006-9-23 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  CDA9409  Fraxinus uhdei D. G. Kelch 2006-12-9 6 .569 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA734971  Fraxinus uhdei A. C. Sanders, Fred M. Roberts 2008-6-17 35464 Orange Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  IRVC29786  Fraxinus uhdei Mark A. Elvin, Dean Kelch 2006-12-9 5304 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  CAS-BOT-BC422452  Fumaria officinalis Ira L. Wiggins 1966-2-16 20445 -A Orange On N. side of Yorba Linda Blvd., near corner of Associated Road, Fullerton. Comment
  UCR29049  Fumaria parviflora L. C. Erickson 1952-3-13 s.n. Orange Santa Ana Comment
  UCR29938.2  Fumaria parviflora Larry Summers 1983-4-18 s.n. Orange Tustin, Irvine Ranch, Field 120 at the intersection of Bryan and Culver Comment
  RSA567  Funastrum cynanchoides var. hartwegii J. T. Howell 1927-6-3 19 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA700195  Galium angustifolium R. H. McArthur 1934-4-7 s.n. Orange Ladd Canyon. Comment
  RSA702703  Galium angustifolium Scott D. White, Michael Honer 2004-5-17 10388 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
  SD143727  Galium angustifolium Scott D. White 1997-3-28 4850 Orange Santa Ana Mts; above Modjeska Canyon: Proposed water tank site 424 Comment
  UCR223428  Galium angustifolium Dick Newell, Don Millar 2011-2-15 060 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  UCSB48003  Galium angustifolium Roberts, Fred 1980-6-29 Orange Santa Ana Mtns., Viejo Canyon, 0.4km N Calif. Rte 74; 2.2km ENE San Juan Guard Station 341 Comment
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Oct 28 2018
  RSA367701  Galium angustifolium subsp. angustifolium E. Crow 1929-4-7 323 Orange Hidden Canyon, W. of Corona. Comment
  UCSB12531  Galium aparine Whittington, M. 1962-4-20 Orange South side of Back Newport Ba, about 250 yards south of saltworks, Newport Comment
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Aug 15 2016
  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
  RSA587868  Galium nuttallii Fred M. Roberts Jr., Carol A. Roberts 1990-5-16 4632 Orange Small canyon along southeast side of Irvine Mesa, 3.5 km N Bolero Lookout. 396 Comment
  RSA704936  Galium nuttallii subsp. nuttallii Fred M. Roberts, David E. Bramlet 2004-4-21 6036 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Shady Canyon, tributary to Cristianitos Cyn., 0.65 km NW Sycamore Gate, 0.70 km W of Cristianitos Road. 148 Comment
  RSA682911  Galium parisiense Scott D. White, Amanda Duchardt 2003-5-1 9160 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  JEPS74654  Galium porrigens Lauramay T. Dempster and G. L. Stebbins 1967-3-21 4351 Orange 1 mi nw Cock's Corners (on road to Modjeska's Home, shallow canyon) Comment
  POM47660  Galium porrigens F. W. Peirson 1924-5-31 4665 Orange 5 miles southeast of Laguna Beach Comment
  UCR241668  Garrya flavescens Dick Newell, Judy Booth 2013-5-19 329 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest; Maple Springs Road, 2 miles north of Modjeska Peak 855 Comment
  CLARK-A1528-974  Gasoul nodiflorum Patricia A. Andrews 1975-6-26 5928 Orange Capistrano Bay Beach 9 Comment
  CDA5141  Gaura coccinea var. epilobioides E. Johnson 1939-8-3 Orange Brea. 0 Comment
  UCR253009  Geranium incanum Robert DeRuff 2012-3-9 580 Orange South Coast, Newport Back Bay, Northstar Beach park near Newport Aquatic Center 5 Comment
  CAS-BOT-BC229038  Geranium incanum var. multifidum R. E. Riefner, Jr. 2007-4-28 07 -189 Orange City of Newport Beach, Newport Bay, North Star Beach, vicinity of Morning Star Ln. 1 Comment
  UCR241091  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-16 12- 404 Orange South Coast, City of Dana Point, Dana Point Harbor Drive at Island Way 11 Comment
  RSA139631  Gilia angelensis John Ingram 1960-3-29 269 Orange 1/2 mile below O'Neill Park, Trabuco Canyon. Comment
  UCR219853  Gilia angelensis Fred M. Roberts 1999-4-26 5199 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Cyn and the wash, 1.4 km SE Silverado School, 2.7 km north Bolero Lookout 358 Comment
  RSA749432  Gilia capitata subsp. abrotanifolia Fred M. Roberts 2008-4-14 6896 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork, 3.1 km E Robbers Peak, Irvine Ranch Conservancy. 453 Comment
  POM256716  Gilia capitata subsp. abrotanifolia W. Pequegnat 1940-5-24 s.n. Orange Modjeska Flat. Comment
  RSA698350  Gilia multicaulis R. H. McArthur s.n. Orange Gypsum Canyon. Comment
  SEINET10849002  Gnaphalium David B. Dunn 1971-8-13 Dunn 18133 Orange Cultivated plants vicinity of Laguna Beach. Comment
  RSA0036807  Gnaphalium californicum Darren Day, Hal Willis 1984-4-28 002 Orange At the side of Laguna Canyon Rd. exactly 2.5 miles outside of the city limits, heading north. Comment
  RSA588723  Gnaphalium californicum Fred M. Roberts 1990-5-7 4607 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  UCR174027  Gnaphalium californicum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33008 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
  RSA688984  Gnaphalium canescens subsp. microcephalum Fred M. Roberts, David E. Bramlet 2003-4-10 5642 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
  RSA750065  Gnaphalium canescens subsp. microcephalum A. C. Sanders, Fred M. Roberts 2008-9-18 36068 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  RSA573302  Gnaphalium leucocephalum Steve Boyd 1994-9-14 8359 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucus Canyon Trail crossing near old mining camp. 299 Comment
  RSA603364  Gnaphalium leucocephalum Scott D. White 1997-6-12 5342 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
  RSA704430  Gnaphalium leucocephalum Fred M. Roberts, David E. Bramlet 2004-7-30 6087 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn. along Cristianitos Ck., 1.1 km SSW Gato Gate and 0.32km W Cristianitos Road. 73 Comment
  RSA627032  Gnaphalium luteoalbum Scott D. White 1998-5-16 6508 Orange E Coyote Hills, Oil field at NW corner of Bastanchury and State College. 122 Comment
  RSA703385  Gnaphalium stramineum R. E. Riefner Jr. 2004-5-6 04 -173 Orange Newport Beach, north side of Pacific Coast Hwy., west of Bayside Drive near Newport Dunes Beach Club. 10 Comment
  RSA698233  Godetia epilobioides Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  RSA603291  Grindelia camporum R. E. Riefner 1997-7-12 97 -232 Orange San Clemente State Beach Comment
  RSA734690  Grindelia camporum A. C. Sanders, Fred M. Roberts 2008-6-17 35506 Orange Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  SD28098  Grindelia camporum Carl B. Wolf 1932-7-2 3810 Orange Opposite Olinda Pilgrim Church. Comment
  SD60356  Grindelia camporum Peter H. Raven 1959-4-30 14038 Orange Base of ocean bluffs just north of San Clemente. Comment
  CAS-BOT-BC305202  Grindelia hirsutula Peter H. Raven 1959-4-30 14038 Orange Just north of San Clemente Comment
  CAS-BOT-BC305212  Grindelia hirsutula David D. Keck 1932-9-30 1899 Orange Ca. 5 mi. S. of Santa Ana, at R.R. right-of-way on road to Newport Beach Comment
  HSC79042  Grindelia hirsutula Steve Boyd 1981-5-13 Orange Pelican Hill, Irvine Ranch property in the San Joaquin Hills S of Corona del Mar Comment
  UC536899  Grindelia hirsutula Lawrence M. Booth 1932-5-24 1092 Orange Newport Bay Comment
  CDA6157  Guizotia abyssinica Robert L. Pope 1967-6-13 Orange 0 Comment
  POM50886  Gutierrezia californica L. R. Abrams 1901-06 s.n. Orange El Toro. Comment
  RSA542435  Gutierrezia californica Fred M. Roberts, K. Keane 1988-5-26 4006 Orange Rancho Mission Viejo: tributary to Trampas Canyon, along Christianitos Raod, 2.4km ESE Viejo Survey Mark. 135 Comment
  UCR168327  Gutierrezia californica P. H. Raven 1961-10-15 16853 Orange Santa Ana Canyon Rd, just west of State Highway 55, at west end of Peralta Hills 137 Comment
  UCR230841  Gutierrezia californica Dick Newell, Don Millar, Shara Harris 2011-6-21 184 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 207 Comment
  UCR281517  Gutierrezia californica Mitch Provance 2017-6-9 617- 96 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  UCSB48104  Gutierrezia californica Fritzke, S.; Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: San Juan Canyon, Calif. 74, 0.9km E San Juan Guard Station 269 Comment
  RSA0066587  Harpagonella palmeri Fred M. Roberts, David Bramlet 2003-5-1 5691 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km W of Cristianitos Rd. 111 Comment
  UCR113457  Harpagonella palmeri R. E. Riefner Jr. 2000-4-27 20- 391 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running south from Baker Canyon Road to Silverado Road 335 Comment
  UCR241069  Harpagonella palmeri Dick Newell, Don Millar, Gigi Logan 2013-3-19 321 Orange Peninsular Range; Santa Ana Mtns., Silverado-Mod. Trail, 1.27 miles north of Blackstar and Silverado Canyon Rd. 366 Comment
  RSA0066589  Harpagonella palmeri Fred M. Roberts 1988-3-15 3870 Orange Rancho Mission Viejo: Central Gabio Canyon, 7.0 km E Playa Survey Marker. 162 Comment
  CAS-BOT-BC307267  Hazardia squarrosa var. grindelioides John Thomas Howell 1927-10-22 3160 Orange N. side of Santa Ana Canyon 304 Comment
  RSA602118  Hedypnois cretica Scott D. White 1997-5-6 5045 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  UCR79270  Hedypnois cretica Steve Boyd, T. S. Ross 1992-5-20 7462 Orange Southern Santa Ana Mtns, San Mateo Canyon Wilderness Area: Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail, upstream 0.25 mi to spur trail leading to old mining habitations in side canyon. 412 Comment
  CDA6459  Hedypnois cretica Margaret Bellue, G. C. Fleischman 1945-5-8 Orange Near Brea, Union Oil Property. 0 Comment
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Aug 18 2010
  UC774607  Hedypnois rhagadioloides C. B. Wolf 1938-5-2 9406 Orange vacant lot on e side of 1200 block Francis St.; City of Fullerton 60 Comment
  RSA696701  Helianthemum scoparium Anonymous s.n. Orange Modjeska. 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
  UCR73132  Helianthus annuus Scott D. White 1992-9-23 853 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  POM359985  Helianthus annuus subsp. lenticularis Josephine Derigo 1941-7-25 s.n. Orange Canyon road to Laguna Beach, California. open feilds and road side. Low lands Comment
  RSA873  Helianthus annuus subsp. lenticularis J. T. Howell 1927-7-27 484 Orange Near ranch, Rancho Santa Ana 152 Comment
  UCR109773  Helianthus ciliaris R. D. Goeden, Don W. Ricker 1965-7-7 s.n. Orange Laguna Hills, Veeh Ranch, c. 1.5 mi. west of El Toro 91 Comment
  CAS-BOT-BC305658  Helianthus ciliaris E. L. Paddock 1941-8-1 s.n. Orange Graham-Loftus property, 2 miles east of Brea Comment
  OBI4714  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, N of El Toro, ca 11 mi SE of Tustin Comment
  IRVC14734  Helianthus gracilentus A. S. Boughey 1968-7-9 401 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA263727  Helianthus gracilentus E. W. Lathrop 1970-1-28 7125 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA0012952  Helianthus nuttallii subsp. parishii L. M. Booth 1933-8-26 1388 Orange Far end of Newport Lagoon Comment
  RSA92493  Helianthus nuttallii subsp. parishii F. W. Peirson 1924-10-19 5246 Orange Wintersberg. Comment
  JEPS67980  Heliotropium curassavicum Lawrence M. Booth 1932-6-9 1172 Orange mouth of Santa Ana R. Comment
  UCR46552  Heliotropium curassavicum B. G. Pitzer 1986-10-20 0312 Orange Peninsular Range; Santa Ana Mtns., Siphon Reservoir, c. 5 mi NE of Irvine and c. 1 mi NE of intersection Irvine Blvd and Sand Canyon Ave 122 Comment
  POM3867  Heliotropium curassavicum var. oculatum D. L. Crawford 1916-07 1958 Orange Near Laguna Comment
  UCSB48227  Helminthotheca echioides Roberts, Jr., Fred 1981-7-8 Orange Rancho Mission Viejo; Calif. Rte. 74, 5.2 km. ENE San Juan Capistrano by road 100 Comment
  POM360277  Hemizonia fasciculata L. C. Wheeler 1932-6-25 861 Orange Newport Bay. 6 Comment
  UCR131869  Hemizonia fasciculata J. Mallory, V. McCoy 1995-7-3 6454- 104 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
  UCR158032  Hemizonia fasciculata Adrian Wolf 1998-5-15 295 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCR239938  Hemizonia fasciculata O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  RSA665419  Hemizonia paniculata Fred M. Roberts, Karen Swirsky 1988-6-28 4104 Orange Rancho Mission Viejo: Tributary to Arroyo Trabuco, 5.9km NNE Trabuco Survey Mark 171 Comment
  UCR157707  Hemizonia parryi subsp. australis Adrian Wolf 1998-7-1 422 Orange South Coast, Newport Oil Fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  POM2134  Hesperocnide tenella D. L. Crawford 1916-07 1959 Orange Near Laguna Comment
  SBBG56425  Hesperocyparis forbesii H. C. Jackson 1936-5-15 Orange Santa Ana Cyn Comment
  RSA649843  Hesperolinon micranthum D. E. Bramlet 2000-6-27 3065 Orange Upper east Blind Canyon. The site is 152m west of the Fremont Cyn. ridge road and 122m south of the Blind Cyn. access road. This locality is 244m northeast of the old mine site. 144 Comment
  UCR231191  Heteromeles arbutifolia A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39936 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1152 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
  JEPS20382  Heterotheca grandiflora L. M. Booth 1932-5-25 1112 Orange Balboa Island Newport Bay, Balboa Island Comment
  SEINET7073546  Heterotheca grandiflora A. G. Vestal 1963-3-27 s.n. Orange Ridge above Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  IRVC792  Heterotheca grandiflora Anonymous 1965-4-29 Orange Santa Ana Canyon Comment
  RSA0075806  Heterotheca grandiflora Ken Greby 1985-5-17 38 Orange On hillsides behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  RSA0075811  Heterotheca grandiflora J. T. Howell 1927-9-24 747 Orange Hill tops north of Botany Garden, Rancho Santa Ana. 274 Comment
  RSA749682  Heterotheca sessiliflora A. C. Sanders, Fred M. Roberts 2008-7-16 35848 Orange Lomas de Santiago, Limestone Canyon 325 Comment
  RSA542439  Heterotheca sessiliflora subsp. echioides Fred M. Roberts, K. Keane 1988-5-25 3993 Orange Rancho Mission Viejo: Lower Canada Chiquita, 1.9km SSE Medium Rancho Survey Mark, UTM 3710800m N, 443500m E 90 Comment
  CAS-BOT-BC55398  Hirschfeldia incana Ira L. Wiggins 1965-10-24 20281 Orange Fullerton. Along Skyline Driver near intersection with Raymond Street. Comment
  CAS-BOT-BC207961  Hoffmannseggia glauca Goodwin 1933-7-6 s.n. Orange Unspecified Comment
  UCR247907  Hoita macrostachya Fred M. Roberts 2013-6-12 7785 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  RSA698657  Holodiscus discolor Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  SD247727  Holodiscus discolor R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49690 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  CAS-BOT-BC150010  Holodiscus discolor var. discolor P. C. Everett 1935-6-18 7221 Orange Santa Ana Mts., summit of Santiago Pk. 1731 Comment
  RSA12282  Hordeum brachyantherum C. B. Wolf 1934-4-11 5657 Orange Bryant Ranch, east of Long Beach, along Bixby Ave., 0.5 mile west of Hansen Rd. 100 ft N of fence 8 Comment
  RSA608538  Hordeum depressum D. E. Bramlet 1996-4-20 2458 A Orange Marsh adj. to Upper Newprot Bay, approx. 122m southeast of the end of University Dr. and 15.2m west of the Delhi channel., UTM 37 23 830mN, X 4 18 180m E 1 Comment
  RSA688979  Hordeum intercedens Fred M. Roberts, Robt. Allen 2003-4-1 5634 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, western slopes of Cristinitos Cyn., 0.16km WSW Gato Gate. Comment
  RSA702992  Hordeum intercedens D. E. Bramlet, Fred M. Roberts 2003-4-10 3370 Orange Donna O'Neill Reserve. Along the high Ridge trail, 518m west of Cristianitos Rd. and 335m south of the E-W access road. The site is 1.1km north of Pico. 189 Comment
  SBBG119309  Hordeum intercedens D. Bramlet 1998-5-20 2622 Orange San Juan Hills, ca. 488 m W of La Pata Ave and 1.22 km N of Prima Deshecha Canada; ca. 457 m E of the old ridgeline rd 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
  UCR158160  Hordeum intercedens Adrian Wolf 1998-4-24 161 Orange South Coast, San Joaquin Hills, Shady Canyon, central part west of main canyon on ridgetop, 2.5 km NE of Signal Peak, 3 km south of Sand Canyon Reservoir 152 Comment
  UCR158161  Hordeum intercedens Adrian Wolf 1998-4-25 154 Orange South Coast, San Joaquin Hills, west Bommer Canyon ridge, 1 km NW of Signal Peak, 3 km east of San Joaquin Reservoir 287 Comment
  UCR158227  Hordeum intercedens Adrian Wolf, David Charlton 1998-4-22 128 Orange South Coast, San Joaquin Hills, Shady Canyon east of Sand Canyon Reservoir, 1 mile [ESE] of French Hill, south of gravel road toward Sand Cyn. Rd 79 Comment
  CDA32412  Hordeum jubatum R. L. Pope 1961-7-18 Orange Santa Ana Freeway. 0 Comment
  UCR160532  Hordeum marinum subsp. gussoneanum Robert DeRuff 1993-4-2 444 Orange South Coast, Newport Back Bay, Santa Ana Heights area, coastal end of 23rd Street 15 Comment
  UCR207598  Hordeum marinum subsp. gussoneanum O. F. Clarke 2004-5-19 s.n. Orange South Coast, Fairview Park, Costa Mesa 24 Comment
  RSA697739  Hordeum murinum Elisabeth Norland 1929-3-16 s.n. Orange Santa Ana Co. Club. Comment
  POM202586  Hordeum murinum subsp. glaucum L. M. Booth 1932-5-12 1050 Orange Newport Bay. Comment
  RSA542550  Hordeum murinum subsp. leporinum Fred M. Roberts 1988-3-4 3810 Orange Anaheim, along Atchison Topeka RR parallel to Vine St., south of Broadway St., UTM 3743900m N, 416300m E 50 Comment
  RSA55  Hordeum murinum subsp. leporinum J. T. Howell 1928-3-17 869 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCSB48126  Hordeum vulgare Roberts, Fred 1981-4-11 Orange Highway 74: 5.2km E San Juan Capistrano, near San Juan Creek crossing 52 Comment
  UCR231503  Hulsea heterochroma Dick Newell, Judy Booth 2011-6-19 183 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 1086 Comment
  RSA450874  Hypericum canariense Fred M. Roberts 1984-4-29 1361 Orange Dana point Headlands: 0.5km NW Dana Point Harbor; 0.4km S Richard Henry Dana School 75 Comment
  UC1543186  Hypochaeris glabra Donald G. Nelson 1935-4-6 234 Orange e San Juan Capistrano; Cleveland National Forest Comment
  RSA39336  Hypochaeris radicata E. L. Paddock 1943-5-26 12742 Orange Near Santa Fe Railway 1/8 mile east of Northam Station. Buena Park. Comment
  UCR188940  Ipomoea cairica Robert DeRuff 2006-1 567 Orange Newport Beach, Upper Newport Bay, Back Bay Drive, lower bluff between 23rd Street and Mariners Drive 5 Comment
  SD248402  Ipomoea purpurea R. E. Riefner Jr. 2012-9-7 12 504 Orange City of Dana Point, Dana Point Harbor Drive, vicinity of Island Way. 18 Comment
  RSA638195  Isocoma menziesii Scott D. White 1998-10-15 7184 Orange Yorba Linda: 1/2 mile south of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development. 152 Comment
  RSA0050275  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
  SD124238  Isocoma menziesii var. menziesii C. W. Tilforth 1976-10-21 1225 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana Comment
  UCR247911  Isocoma menziesii var. menziesii Fred M. Roberts 2012-9-6 7694 Orange SAN JOAQUIN HILLS: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 km WNW Pelican Hill summit. 37 Comment
  CAS-BOT-BC311656  Isocoma menziesii var. vernonioides David D. Keck 1932-9-30 1906 Orange Dana Point, near San Juan Capistrano Comment
  CAS-BOT-BC311733  Isocoma menziesii var. vernonioides John Thomas Howell 1927-7-17 2789 Orange One mile north of Laguna Beach 30 Comment
  OBI28466  Isocoma menziesii var. vernonioides J. & B. Sample, B. Sample 1981-8-12 5589 Orange Near Orange County line on hwy 74 610 Comment
  RSA5815  Isocoma menziesii var. vernonioides C. B. Wolf 1932-6-28 3807 Orange Edge of field on Bryant Ave., 300 ft. W. of N.E. corner of N.W. 1/4 of S.E. 1/4 sect27 T4S RNW 9 Comment
  RSA892  Isocoma menziesii var. vernonioides J. T. Howell 1927-9-24 738 Orange Santa Ana Botany Garden 152 Comment
  UC1118854  Isocoma menziesii var. vernonioides A. Lewis 1934-4-1 396 Orange San Joaquin Hills Corona Quadrangle Comment
  UC1605435  Isocoma menziesii var. vernonioides Steve Boyd and Tim Ross 1994-9-14 8348 Orange Lucas Canyon Trail trail at divide between Aliso Canyon and Lucas Canyon; Southern Santa Ana Mountains, Cleveland N.F., San Mateo Cany 341 Comment
  UC1090402  Isomeris arborea Milo S. Baker 1958-5-20 13307 Orange Newport Bay Comment
  RSA651865  Jasminum humile Booisseranc s.n. Orange Front of Congressional Church, Breolinda. Comment
  POM11677  Jepsonia parryi P. A. Munz, I. M. Johnston 1922-5-18 5314 Orange Santa Ana River Canyon, 3 miles south of Orange Co. line., side canyon. 457 Comment
  CAS-BOT-BC101919  Juglans californica C. B. Wolf 1934-9-21 6141 Orange Lower end of Brea Canyon, Puente Hills 182 Comment
  OBI30181  Juglans californica Czarnecki 1966-5-8 104 Orange La Vida springs in Carbon Cyn Comment
  RSA0011065  Juglans californica Lyman Benson 1947-4-27 12340 Orange Carbon Canyon. Mr. Range: Puente Hills; Drainage area: Pacific Slope. 244 Comment
  RSA0024927  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
  SD241062  Juglans hindsii R. E. Riefner Jr. 2011-8-25 11 114 Orange Trabuco Canyon, Trabuco Canyon Road ca. 1 mile NW of O'Neill Regional Park. 319 Comment
  UCD169219  Juglans hindsii R. E. Riefner Jr. 2015-7-2 15- 191 Orange City of Laguna Beach, Laguna Canyon, ca. 0.25 mi S of El Toro Rd. on E side of Laguna Canyon Rd. 75 Comment
  RSA790108  Juglans hindsii R. E. Riefner Jr. 2011-8-25 11 -112 Orange Trabuco Canyon, Trabuco Canyon Rd. ca. 1 mi NW of O Neill Regional Park. 319 Comment
  SBBG128386  Juglans hindsii R. E. Riefner Jr. 2010-9-8 10 -121 Orange Laguna Cyn, ca. 0.15 mi S of El Toro Rd on E side of Laguna Cyn Rd; Laguna Beach 75 Comment
  UCR193403  Juglans nigra A. C. Sanders, Fred M. Roberts 2008-6-17 35477 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA542517  Juncus acutus subsp. leopoldii Fred M. Roberts, W. Ferren 1987-4-8 3358 Orange Upper Newport Beach Back Bay, west side, North Star Beach, 0.8 km N Coney Island. 0 Comment
  POM155895  Juncus bufonius C. B. Bradshaw s.n. Orange Laguna region. Comment
  UC842337  Juncus bufonius Alice Eastwood and John Thomas Howell 1937-4-24 3933 Orange Dana Point Comment
  UCR158029  Juncus bufonius Adrian Wolf 1998-5-15 292 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCR97575  Juncus bufonius B. G. Pitzer 1997-4-15 3139 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  RSA594873  Juncus mexicanus Fred M. Roberts, W. R. Ferren 1991-12-1 4828 Orange Aliso-Wood Canyons Regional Park: Lower Wood Canyon, just above confluence with Alins Canyon, ca. 3.5 kilometers S Multon Peak. 32 Comment
  SEINET6174580  Juncus phaeocephalus E. K. Balls 1949-5-9 13467 Orange Botanic Garden, Santa Ana River Canyon 198 Comment
  RSA50307  Juncus phaeocephalus var. paniculatus E. K. Balls 1949-6-6 13467 -A Orange [Rancho Santa Ana] Botanic Garden, Santa Ana River Canyon. 198 Comment
  UCR193074  Juncus rugulosus A. C. Sanders, Mitch Provance 2008-5-20 35424 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  SEINET3282755 Image available Juncus textilis A. C. Sanders, Fred M. Roberts 2008-7-16 35855 Orange Peninsular Range; Santa Ana Mtns.; Lomas de Santiago, upper Hangmans Tree Canyon. 395 Comment
  POM1593  Juncus xiphioides C. B. Bradshaw 1903-9-25 s.n. Orange Silverado Canyon. Comment
  RSA702804  Juniperus californica D. E. Bramlet, F. M. Roberts 2003-3-27 3360 Orange Donna O Neill Reserve. S facing slope of tributary to Cristianitos Cyn., 335 m W of Cristianitos Rd. & 428m NW Ford Rd. 136 Comment
  UC1018202  Keckiella antirrhinoides J. Warren 1952-4-5 Orange Santa Ana Canyon Comment
  UCR234140  Keckiella antirrhinoides Dick Newell, Judy Booth 2012-4-6 244 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road at Mountain View Trail, Cleveland National Forest 610 Comment
  NY786524  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
  NY790232  Keckiella cordifolia F. W. Pennell 1949-6-29 26806 Orange Ortega Highway, above San Juan Capistrano 365.8 Comment
  RSA293307  Keckiella cordifolia D. C. Michener 1980-6-21 3683 Orange Starr Audubon Sanctuary. Riparian woodland margin in Crow Creek ca. 1.5 mi. north of confluence with Bell Canyon. 250 Comment
  RSA401706A  Keckiella cordifolia F. R. Fosberg 1931-6-21 S- 5133 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA401777A  Keckiella cordifolia M. B. Dunkle 1933-5-30 s.n. Orange Carbon Canyon Comment
  RSA542500  Keckiella cordifolia Fred M. Roberts 1988-5-12 3964 Orange Anaheim Hills: Upper Deer Canyon, 7.7 km W Sierra Peak. 268 Comment
  RSA659899  Keckiella cordifolia Karl Price 1988-5-21 40 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA683235  Kickxia elatine Scott D. White, Matt Carlton 2003-11-20 9866 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 24 Comment
  RSA730997  Kickxia elatine Fred M. Roberts 2006-11-15 6460 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  RSA703848  Koeleria macrantha D. E. Bramlet 2003-3-20 3352 A Orange Donna O'Neill Reserve. NE corner of the reserve 150m west of Cristianitos Rd. and 1.77km north of the E-W access road. Comment
  CDA7193  Koelreuteria bipinnata T. B. Salvato, K. Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast; Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Dirve. Comment
  RSA696161  Lactuca scariola Keith E. Hoffmaster 1927-10 s.n. Orange Santa Ana Comment
  POM202181  Lactuca serriola L. M. Booth 1932-7-19 1283 Orange Bolsas Marsh. Comment
  RSA894  Lactuca serriola J. T. Howell 1927-7-27 496 Orange Near ranch, Rancho Santa Ana 152 Comment
  CAS-BOT-BC340716  Laennecia coulteri I. M. Johnston 1918-9-3 2148 Orange Laguna Canon [Canyon], San Joaquin Hills 106 Comment
  UCR7865  Lagophylla ramosissima O. F. Clarke 1968-7-28 s.n. Orange Santa Ana Mtns, Between Los Pinos Job Corps Camp and locked forestry gate on road to Santiago Peak. 1037 Comment
  SD247453  Lagunaria patersonia R. E. Riefner Jr. 2011-6-29 11 76 Orange City of Laguna Beach, general area of Shaw's Cove, vicinity of Cliff Drive and Fairview Street. 0 Comment
  UCR240187  Lagunaria patersonia R. E. Riefner Jr. 2011-6-29 11- 76 Orange South Coast, city of Laguna Beach, general area of Shaw's Cove, vicinity of Cliff Drive and Fairview Street 1 Comment
  RSA687519  Lamarckia aurea Fred M. Roberts, David E. Bramlet 2003-4-10 5650 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, ridge between Cristianitos Cyn. and Segunda Deshecha Canada, 1.54km W Gato Gate and 1.59km NW Edison substation. 262 Comment
  UC1132172  Lamarckia aurea A. Lewis 1934-4-1 377 Orange Coal Mine 304 Comment
  UCD63319  Lamarckia aurea A. A. Beetle 1942-4-19 3095 Orange Rt. 101. 2 miles north of Laguna Beach. Comment
  UCR192490  Lamarckia aurea A. C. Sanders, Fred M. Roberts 2008-3-25 34557 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR99880  Lamarckia aurea Scott D. White 1993-3-5 1130 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA663163  Lamium amplexicaule R. E. Riefner Jr. 2000-6-26 20 -584 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N from Baker Canyon Road. 305 Comment
  CAS-BOT-BC338904  Lasthenia californica Carl B. Wolf 1932-3-8 2677 Orange 1/2 mi. No. of Corona Del Mar. Borders of Newport Bay 7 Comment
  CAS-BOT-BC338907  Lasthenia californica Frank W. Peirson 1925-4-11 5746 Orange 5 miles south of Laguna Beach Comment
  RSA749837  Lasthenia coronaria D. Bramlet, Jim Harrison 2008-4-3 4149 Orange South Bee Canyon, Bowerman landfill site. 1.2 km S of the Bee Cyn. access road, and 122 m W of the active landfill. Comment
  UCR203976  Lasthenia coronaria D. E. Bramlet, J. E. Harrison 2008-4-3 4149 Orange Peninsular Range; Santa Ana Mountains, South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill 224 Comment
  RSA2821  Lasthenia glabrata subsp. coulteri E. R. Johnson 1931-4-7 s.n Orange east end camp. Bryant Ranch, Los Alamitos. 9 Comment
  RSA0024932  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2013-3-10 13 -39 Orange City of Lake Forest, along El Toro Rd. at Destry Rd. 211 Comment
  POM294108  Lasthenia gracilis Lyman Benson 1946-4-27 12056 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  UC2061417  Lasthenia gracilis Rachael L. Olliff Yang with Alice J. Olliff 2017-3-30 13 Orange UC Irvine Ecological Reserve, about 100 m West of Los Trancos Drive, along the trail. Comment
  UCSB9449  Lasthenia gracilis Lloyd, Robert 1959-4-17 Orange 10 miles south of West Corona on the Oak Flats Fire Road; Santa Ana Mt. Range; Pacific Ocean Drainage Area 792 Comment
  RSA29612  Lathyrus vestitus subsp. alefeldii Grout, Grout 1905-04 s.n. Orange Aliso Canyon Comment
  RSA405709  Lathyrus vestitus subsp. laetiflorus E. Crow 1929-2-22 164 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  CHSC56083  Lathyrus vestitus var. vestitus Mike Cecchini 1978-6-23 1 Orange Ca 1 km northeast of Tucker Wildlife Sanctuary and 0.5 km southeast of Modjeska Reservoir; 10.5 km southeast of Tustim. 457 Comment
  UCR97637  Lathyrus vestitus var. vestitus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1649 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
  RSA35462  Lavatera assurgentiflora subsp. assurgentiflora Emily M. Bradford 1904-3-6 s.n. Orange Ocean Park Comment
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Sep 13 2013
  UCR17212  Lavatera cretica Emily Carlton 1966-4-18 51 Orange Pacific coast, Laguna Beach, corner of Agate and Santa Cruz Streets. 30 Comment
  CAS-BOT-BC380859  Layia platyglossa P. A. Munz 1918-5-4 2172 Orange Laguna Comment
  RSA550587  Layia platyglossa subsp. campestris Fred M. Roberts 1989-4-26 4323 Orange Santa Ana Mtns: lower Blind Canyon near mouth, 9.2km SW Sierra Peak, 1km N Irvine Lake spillway. 210 Comment
  UCR102631  Lemna B. G. Pitzer 1996-4-30 2786 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA99  Lemna trisulca J. T. Howell 1927-7-15 400 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  CDA25745  Leonurus sibiricus O. F. Clarke, A. C. Sanders 2008-2-19 s.n. Orange South Coast; Fullerton; weeds at California State University Fullerton Arboretum. Comment
  RSA443836  Lepechinia cardiophylla Gordon Marsh, Karlin G. Marsh 1978-5-13 s.n. Orange Claymine Canyon Road; above Claymine Canyon center on west ridge and near road. Comment
  UC1124486  Lepechinia cardiophylla H. E. Norton 1931-3-30 41 Orange Ridge between Ladd and East Fork Canyons 1036 Comment
  RSA697418  Lepidium didymum J. R. Bruff s.n. Orange Fifth St. Bridge. Santa Ana. Comment
  RSA753424  Lepidium lasiocarpum var. lasiocarpum D. E. Bramlet 2008-4-14 4176 Orange Eastern Upper Weir Cyn., 83m S dirt access road & 272 m west of Gypsum Cyn. 417 Comment
  UCR186687  Lepidium latifolium T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1908 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  RSA679088  Lepidium latifolium Fred M. Roberts 2003-7-24 5971 Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub., 33,30 15 N, 117, 38 44 27 Comment
  IRVC29094  Lepidium nitidum Fred M. Roberts 1989-3-17 4209 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  SD28156  Lepidium nitidum Carl B. Wolf 1932-2-15 2658 Orange Rancho Santa Ana Botanic Garden near the Tan Oak Beds 185 Comment
  UCR179765  Lepidium oblongum R. E. Riefner Jr. 2006-4-8 06- 112 Orange South Coast, San Juan Capistrano (city), San Juan Creek at La Novia Ave. 22 Comment
  UCR271004  Lepidium oblongum Mitch Provance, Travis Kegel 2016-4-8 416- 59 Orange Coastal Regions of Southern California, Newport Beach, W of the W end of 16th Street, and E of the Banning Oil Fields 32 Comment
  IRVC25434  Lepidium pinnatifidum Fred M. Roberts 1987-7-8 3471 Orange San Diego Creek, near San Diego Freeway crossing, 3.2km N UC Irvine Campus center; Irvine 5 Comment
  RSA0116223  Lepidium strictum Fred M. Roberts, Tony Bomkamp, R. E. Riefner 1996-4-19 4963 Orange Costa Mesa; Fairview Park, 0.1km W Canyon School 24 Comment
  UC537122  Lepidium virginicum Lawrence M. Booth 1932-5-24 1098 Orange Newport Lagoon Comment
  UCR4054  Lepidium virginicum Carole Sims 1965-3-25 s.n. Orange Santa Ana River Canyon, hillside at 24000 Santa Ana Canyon Road (= State Hwy 91), 150 yards north of hwy; also called Gypsum Canyon. West side of gravel company's trucking road. 221 Comment
  HSC6841  Lepidium virginicum D. H. Norris 1956-6-16 10 Orange Along Guess Rd., near Eno River Comment
  RSA689412  Lepidium virginicum var. pubescens Scott D. White, Amanda Duchardt 2003-4-10 9005 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  RSA773551  Lepidium virginicum var. robinsonii Fred M. Roberts 2008-6-5 7033 Orange Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.2 km ENE Rattlesnake Reserovir spillway and 2.3 km WNW Bee Peak 202 Comment
  UCR240072  Lepidospartum squamatum Dick Newell, Judy Booth 2012-9-4 285 Orange Peninsular Range; Santa Ana Mtns., city of Irvine, Fremont Canyon mouth [Irvine Lake Dam Spillway] at Metropolitan Water District Road, 0.3 mi due north of Santiago Dam 205 Comment
  HSC79611  Leptochloa fusca subsp. uninervia James Henrickson 1972-10-21 8059 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave., just N of Santa Ana River. 61 Comment
  CLARK-A1528-4716  Leptochloa uninervia John C. Roos 1936-10-9 2509 Orange Olive Comment
  RSA698317  Leptodactylon californicum R. H. McArthur 1934-3-25 s.n. Orange Limestone Canyon Comment
  UCR16662  Leptodactylon californicum subsp. leptotrichomum David M. Peterson 1966-3-9 660309- 11 Orange Peninsular Range; Santa Ana Mtns., 13 mi east of San Juan Capistrano on the road to Elsinore 457 Comment
  RSA788816  Leptosiphon floribundus R. F. Thorne 1977-11-21 49985 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  UCR270356  Leptosiphon floribundus subsp. glaber Dick Newell, Judy Booth 2016-4-24 424 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 2.04 miles east of Los Pinos Peak on North Main Divide Rd. 945 Comment
  RSA715700  Leptosiphon liniflorus Fred M. Roberts, Robert L. Allen 2005-10-15 6311 Orange entrance to Falcon Group Camp, 2.1km ESE Los Pinos Peak and 0.3km NE campground. 1008 Comment
  RSA550596  Leptosiphon liniflorus Fred M. Roberts 1989-4-26 4318 Orange Mouth of Blind Caynon, 9.4 k SW Sierra Peak, 1.0km N Irvine lake spillway. 219 Comment
  UC1618069  Leptosiphon parviflorus Donald G. Nelson 1935-7-6 203 Orange San Juan Canyon Comment
  UCR240081  Leptosiphon parviflorus Dick Newell, Don Millar 2012-5-22 258 Orange Peninsular Range; Santa Ana Mtns., on Lake View Rd. above Irvine Lake at State Spur Rd. 564 Comment
  CAS-BOT-BC94815  Lessingia filaginifolia R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 717 Orange Chino Hills S.P., South Ridge Road, W of San Juan Hill, going west from Equestrian Staging Area 441 Comment
  POM361808  Lessingia glandulifera var. glandulifera George R. Johnstone 1928-9-3 s.n. Orange Keen Camp, San Jacinto Mts. 1341 Comment
  POM365330  Leymus condensatus Albert J. Perkins 1918-8-10 s.n. Orange Laguna Beach. Comment
  RSA234478  Leymus condensatus James Henrickson 1970-7-24 4973 Orange 1.5 miles NW of Huntington Beach along NW facing base of Huntington Beach Mesa bordering Bolsa Chica Salt Marsh. 3 Comment
  RSA731967  Leymus condensatus A. Sanders 2008-4-29 35137 Orange Lomas de Santiago, western end of Loma Ridge on road to shriff's training facility, c. 1.5mi SW of Santiago Reservoir. Comment
  RSA734905  Leymus condensatus A. C. Sanders 2008-5-28 35433 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR237813  Lilium humboldtii subsp. ocellatum Dick Newell, Judy Booth 2012-7-8 280 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 2.25 mi. NE of Maple Springs gate 915 Comment
  RSA357146  Limonium californicum var. mexicanum Robert F. Thorne 1975-4-6 45583 Orange Head of Newport Bay. Comment
  UC1873116  Limonium duriusculum R. E. Riefner Jr. 2005-10-5 05 -707 Orange City of Irvine, near Bonita Creek, along La Salud St. near Milano Dr. 9 Comment
  UCR282154  Limonium duriusculum R. E. Riefner Jr. 2017-3-10 17- 75 Orange South Coast, city of Mission Viejo, along Olympiad Road near intersection with Alicia Parkway 253 Comment
  POM311754  Limonium perezii Karen Hosterman 1956-4-7 500 Orange Laguna Beach city, on a cliff overlooking Crescent Bay. Santa Ana Mtn range, Pacific Ocean drainage. 2 Comment
  UCR261695  Limonium perezii Dick Newell, Don Millar, Judy Booth 2015-4-15 402 Orange South Coast, city of Newport Beach, North Star Beach, 90 yards NE of Newport Aquatic Center bulding 3 Comment
  RSA723546  Limonium ramosissimum R. E. Riefner 2005-9-16 5 -667 Orange City of Newport Beach, E of Newport Bay and E of Bayside Dr. Big Canyon Creek drainage. 6 Comment
  UCR182901  Limonium ramosissimum Dean Kelch 2006-12-9 06 .547 Orange Along Newport Back Bay Dr. in side canyon 6 Comment
  RSA468571  Linanthus androsaceus Albert J. Perkins 1923-4-27 s.n. Orange Trabuco Canyon. Comment
  CAS-BOT-BC226776  Linanthus californicus Helen D. Geis 1902-4-1 s.n. Orange Santa Ana River Canon [Canyon] Comment
  CAS-BOT-BC226778  Linanthus californicus C. B. Wolf 1931-3-6 1831 Orange 1 1/2 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  RSA519210  Linanthus californicus subsp. glandulosus M. Lee Overholtzer 1962-6-15 269 Orange 2.5 miles west of Cleveland National Forest Truck Trail between Radar Station and Beak's Comment
  CLARK-A1528-3471  Linanthus dianthiflorus John C. Roos 1937-2-23 1306 Orange Laguna Beach Comment
  UC511103  Linanthus dianthiflorus Lyman Benson 1932-3-26 3192 Orange Dana Point 60 Comment
  UCR191428  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-4-8 34778 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  RSA3188  Linanthus dianthiflorus subsp. dianthiflorus C. B. Wolf 1932-3-8 2675 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  JEPS58123  Linanthus parviflorus Alice King Orange Santa Ana Comment
  UCR151030  Linanthus parviflorus Scott D. White 1997-5-6 5036 Orange Peninsular Ranges; Santa Ana Mtns., Lomas de Santiago; Santiago Canyon area; unnamed tributary to Santiago Creek flowing from the SW, directly west of Pancho Canyon 396 Comment
  CHSC42325  Linanthus pungens 1889-4-1 Orange Laguna (label illegible). Comment
  RSA632420  Lithophragma affine Valerie L. Soza, LeRoy Gross 1999-6-10 521 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1554 Comment
  IRVC1116  Lobularia maritima C. Duncan 1965-4-4 Orange Newport Beach Comment
  CSUSB1414  Lobularia maritima John S. Davis 1972-4-1 72-04-01 1 Orange Newport Beach Newport Beach, corner of San Jaquin Hills Road and Back Bay Road on southwest slope. 3 Comment
  RSA0073645  Logfia filaginoides Fred M. Roberts, Lee Ann Caranza, Eliza Maher 2009-4-7 7146 Orange South Coast Region: DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 50 Comment
  SD247597  Logfia gallica R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49657 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  UC729941  Lolium perenne Carl B. Wolf 1932-6-13 3728 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  UCR170137  Lolium perenne subsp. multiflorum Jeffrey Ross, R. Zaka 1998-5-2 47 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  RSA226631  Lolium perenne subsp. multiflorum Christopher Davidson, G. Benny 1971-6-15 1547 Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  RSA6130  Lolium perenne subsp. multiflorum C. B. Wolf 1932-6-13 3728 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  UCD66669  Lolium temulentum R. M. Love 1942-4-16 9 Orange 8 mi. E of Santa Ana. Comment
  RSA0011623  Lolium temulentum Rankin s.n. Orange Costa Mesa. Comment
  RSA49093  Lomatium dasycarpum subsp. dasycarpum P. A. Munz 1949-5-26 13377 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  SD152968  Lomatium lucidum Steve Boyd, Tim Ross 1992-5-20 7476 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 rodgrade to upper homestead. 349 Comment
  RSA0042757  Lonicera japonica Kenneth Beard s.n. Orange Garden. Santa Ana. Comment
  CAS-BOT-BC234845  Lonicera subspicata var. denudata Helen D. Geis 1902-5-1 s.n. Orange Santiago Canon [Canyon] Comment
  RSA697960  Lotus americanus Domeroy 1929-5-19 s.n. Orange Old road to Orange Co. Park Comment
  RSA697961  Lotus americanus Minor Warne 1934-5-19 s.n. Orange Live oak Canyon. Comment
  RSA234567  Lotus corniculatus James Henrickson 1970-8-22 5300 Orange 2.5 miles NNW of Huntington Beach. 0 Comment
  RSA797909  Lotus crassifolius Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49819 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA732055  Lotus hamatus A. C. Sanders, Fred M. Roberts 2008-3-25 34520 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA599637  Lotus heermannii Fred M. Roberts, Paul Barrett, Gail Bastillos 1995-7-25 4966 Orange San Juan Capistrano: San Juan Creek, 1.0 km SW La Novia Street bridge. 27 Comment
  UC1543225  Lotus heermannii Donald G. Nelson 1935-4-6 256 Orange San Juan Capistrano, below main highway, about 4 mi from summit San Juan Canyon 60 Comment
  UCR193377  Lotus purshianus A. C. Sanders, Mitch Provance 2008-5-20 35394 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA734858  Lotus salsuginosus A. C. Sanders, Mitch Provance 2008-5-20 35406 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  UCR191348  Lotus salsuginosus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34631 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
  POM201833  Lotus scoparius L. M. Booth 1932-5-12 1025 Orange Newport Bay. Comment
  RSA406883  Lotus scoparius M. B. Dunkle 1933-4-9 3286 Orange Dana Point. Comment
  RSA708446  Lotus scoparius Mark Elvin 2004-5-2 3406 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
  UCR131890  Lotus scoparius J. Mallory, V. McCoy 1995-7-3 6454- 93 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  HSC98231  Lotus strigosus S. M. Clapp 1966-4-3 5 Orange Union Oil Prop., just S of Imperial Hwy. and E of Associated Rd. 61 Comment
  POM50643  Lotus strigosus L. R. Abrams 1901-06 s.n. Orange Laguna Comment
  UCR173876  Lotus strigosus Scott D. White 2003-3-21 8801 Orange Peninsular Range/Santa Ana Mtns, Foothills [above] Rancho Mission Viejo; E-facing slopes above an unnamed tributary to San Juan Creek 183 Comment
  UCR191463  Lotus strigosus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34646 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
  UCR192996  Lotus strigosus A. C. Sanders, T. B. Salvato 2008-5-13 35341 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
  IRVC24771  Lotus strigosus var. strigosus Fred M. Roberts 1986-4-24 2796 Orange Rancho Mission Viejo: Canyon east of Trampas Canyon, S of Hwy 74, 2.5km E Viejo Survey Mark. Santa Ana Mountains 113 Comment
  PASA1114  Lotus subpinnatus Frank W. Peirson 1922-5-18 Orange Santa Ana 137 Comment
  UC537009  Lotus wrangelianus Lawrence M. Booth 1932-5-19 1073 Orange Newport Bay Comment
  UC864299  Lotus wrangelianus I. M. Johnston 1918-5-4 1932 Orange Laguna Beach 6 Comment
  RSA731953  Ludwigia peploides subsp. peploides Fred M. Roberts 2007-12-12 6705 Orange Santa Ana Canyon: Santa Ana River, south of Green River Golf course on south side of river, 0.4km E Coal Cyn. Rd. and 0.7km W Riverside Co. line. 129 Comment
  RSA734685  Lupinus bicolor A. C. Sanders, T. B. Salvato 2008-5-13 35340 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
  SD227815  Lupinus bicolor B. Pitzer 1997-4-15 3147 Orange Crystal Cove State Park, Along Moro Canyon Trail, from beginning to a point ca. 1.75 mi. up the canyon 49 Comment
  RSA407  Lupinus bicolor subsp. microphyllus J. T. Howell 1925-2-25 852 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  IRVC22012  Lupinus bicolor subsp. umbellatus Fred M. Roberts, Gordon Marsh 1985-3-12 1506 Orange mesa west of Ave. Pico and north of El Camino Real, 3.2km SSE Coyote Bluff; 0.6km E Bench Mark 16 (sect. 32), San Clemente 37 Comment
  IRVC15184  Lupinus bicolor subsp. umbellatus Gordon A. Marsh, K. Conrey 1975-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam Southern Coastal Comment
  IRVC2292  Lupinus bicolor subsp. umbellatus D. Ibbetson 1965-4-18 HS 0429 Orange Newport Beach Southern Coastal Comment
  CAS-BOT-BC216669  Lupinus excubitus subsp. hallii R. D. Harwood 1920-4-23 5727 Orange Santa Ana Mountain 548 Comment
  RSA564322  Lupinus excubitus var. excubitus B. Pitzer, S. Hemstreet 1992-12-23 1964 Orange Cleveland National Forest. Along road 3S04 to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 airline miles W of El Cariso Campground 762 Comment
  IRVC2308  Lupinus excubitus var. hallii B. Mawdsley 1965-5-2 s.n. Orange Cleveland National Forest; Silverado [Canyon]. Santa Ana Mountains Comment
  POM2477  Lupinus excubitus var. hallii Edward L. Greene 1903-4-1 4102 Orange Anaheim Comment
  RSA605683  Lupinus excubitus var. hallii R. S. Woglum 1938-5-8 1619 Orange Peninsular Ranges: Capistrano to Elsinore; Santa Ana Mountains. [Orange / Riverside counties] Comment
  UC82077  Lupinus excubitus var. hallii C. F. Baker 1903-4-1 4102 Orange Anaheim Comment
  SD143895  Lupinus hirsutissimus Scott D. White 1997-3-28 4837 Orange Santa Ana Mountains, above Modjeska Canyon, proposed water tank site; USGS Santiago Peak 7.5' quad. 424 Comment
  UCR193933  Lupinus hirsutissimus A. C. Sanders, Fred M. Roberts 2008-7-16 35881 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  RSA797239  Lupinus longifolius Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49801 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCSB52913  Lupinus longifolius Roberts, Fred; Marsh, K. 1983-5-13 Orange San Joaquin Hills; Laguna Canyon along Laguna Canyon Road, 1.7 km. N Thruston School; 6.4 km. SE Signal Peak 50 Comment
  UCR177694  Lupinus microcarpus var. microcarpus Fred M. Roberts 2003-5-1 5689 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
  UCR240078  Lupinus sparsiflorus Dick Newell, Don Millar 2012-5-22 253 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hangmans Tree Rd. at Santiago Creek 350 Comment
  RSA660287  Lupinus succulentus Orlando Mistretta 1992-6-2 454 Orange Vicinity of Sierra Peak. (Historical Locality). Comment
  IRVC2359  Lupinus truncatus C. Weir 1965-5-9 s.n. Orange Newport Beach, [Newport] Back Bay. Southern Coastal Comment
  RSA404  Lupinus truncatus J. T. Howell 1928-2-25 839 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA414397  Lupinus truncatus Fay A. MacFadden 1931-3-1 2939 Orange Laguna Beach, Orange County Comment
  RSA737536  Lupinus truncatus Fred M. Roberts 2008-3-12 6726 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCR193438  Lupinus truncatus A. C. Sanders, Mitch Provance 2008-5-20 35393 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
  RSA0055059  Lupinus truncatus James R. Shevock 1970-3-25 66 Orange Santa Ana Mountains. 381 Comment
  SD255176  Lupinus truncatus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49803 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SEINET12154803  Lupinus truncatus J. F. Bright, Wyman, C. 1938-1 8220 Orange Laguna Beach Comment
  CAS-BOT-BC233468  Lycium californicum Carl B. Wolf 1932-3-8 2686 Orange 1/2 mi. No. of Corona Del Mar, borders of Newport Bay 7 Comment
  RSA3177  Lycium californicum Carl B. Wolf 1932-3-8 2686 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  IRVC29712  Lycopersicon esculentum Mark A. Elvin, Barry S. Nerhus 2006-11-4 5248 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA656  Lycopus americanus J. T. Howell 1927-9-24 753 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  UCSB47995  Lythrum californicum Roberts, Fred 1980-7-7 Orange Santa Ana Mtns; San Juan Canyon, Hwy 74, 2.4km ENE San Juan Guard Station; 0.3km W Bench Mark 1100 315 Comment
  RSA0014843  Lythrum californicum F. W. Peirson 1924-5-31 4652 Orange Laguna Canyon, near Laguna Beach. 107 Comment
  RSA759166  Madia gracilis A. C. Sanders, Mitch Provance 2008-5-20 35390 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC206253  Malacothamnus fasciculatus C. B. Wolf 1931-7-25 1166 Orange North side of Pear Orchard, Rancho Santa Ana, Santa Ana Canyon 121 Comment
  POM49079  Malacothamnus fasciculatus I. M. Johnston 1924-7-10 s.n. Orange 1/2 mi. S. of Aliso Canyon. Comment
  RSA433317  Malacothamnus fasciculatus Thekla Mohr 1917-04 1931 Orange Laguna. Comment
  RSA708288  Malacothamnus fasciculatus Scott D. White, Jennifer H. Jones 2005-3-31 10861 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  UCR103710  Malacothamnus fasciculatus B. G. Pitzer, T. Tennant 1997-11-8 3364 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  LA41778  Malacothamnus fasciculatus var. fasciculatus Louis C. Wheeler; 1932-7-9 941 Orange Santa Ana River 5 mi. below Prado 152 Comment
  UCR191228  Malacothrix saxatilis A. C. Sanders 2008-4-29 35120 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  JEPS112967  Malacothrix saxatilis var. tenuifolia Dean W. Taylor 1994-6-7 14410 Orange Newport Bay; along Backbay Drive at the junction with San Joaquin Hills Drive 6 Comment
  CDA8325  Malacothrix saxatilis var. tenuifolia T. C. Fuller 1962-6-7 8875 Orange Brea Canyon Road to Pomona, 1.2 miles north of Brea. 0 Comment
  POM7072  Malacothrix saxatilis var. tenuifolia L. T. Street, G. Williams 1919-5-10 2719 Orange Turnbull Canyon. Near Whittier 305 Comment
  RSA528045  Malephora crocea A. C. Sanders 1990-10-6 10188 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  UC68860  Malosma laurina H. M. Hall July, 1905 6731 Orange Santa Ana R. Comment
  UCSB48029  Malosma laurina Roberts, Fred 1980-7-7 Orange Santa Ana Mtns.; San Juan Canyon, Calif. Rte. 74; 2.2 km. ENE San Juan Guard Station; 0.6 km W Bench Mark 1100 305 Comment
  RSA42673  Malosma laurina H. P. Bracelin 1942-11-22 2369 Orange Southern & Lower California Comment
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Jun 13 2012
  UCR193467  Malva nicaeensis A. C. Sanders, T. B. Salvato 2008-5-13 35356 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
  UCR199729  Malva nicaeensis Scott D. White, Justin Wood 2008-4-22 11907 Orange Chino Hills, Telegraph Canyon Road, E of Carbon Canyon Regional Park 335 Comment
  HSC79313  Malva parviflora W. R. Marsh Aug 1972 37 Orange Between Artesia and Buena Park, E side of Artesia Ave., 1.5 mi. NW of Western Ave. 23 Comment
  RSA184165  Malva parviflora I. L. Wiggins 1966-3-1 20479 Orange western edge of California State College campus, Fullerton 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
  UCR16327  Malvella leprosa N. J. Moriarty 1973-5-20 - 2 Orange Huntington Beach, 0.7 mi. north of Golden West Blvd. on west side of Pacific Coast Highway Comment
  CDA25897  Mangifera indica Mark A. Elvin, D. G. Kelch 2006-12-9 5322 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  RSA441219  Marah macrocarpa E. S. Spalding 1923-1-1 s.n. Orange Laguna Beach. Comment
  UCR191342  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 290 Comment
  RSA703358  Marah macrocarpa var. macrocarpa Fred M. Roberts, Laura Cohen 2004-2-13 6023 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Shady Canyon tributary to Cristianitos Cyn., 1.34 km NW Sycamore Gate, 0.85 km W of Cristianitos Road. 152 Comment
  UCSB41789  Marrubium vulgare Marshall, Lawrence 1967-11-18 Orange West side of Peters canyon reservoir near the dam 304 Comment
  RSA148106  Marsilea vestita Arthur W. Haupt 1935-4-12 s.n. Orange Costa Mesa Comment
  RSA85842  Marsilea vestita F. W. Peirson 1924-5-31 4645 Orange Laguna Canyon, near Laguna Beach 106 Comment
  RSA590719  Marsilea vestita R. E. Riefner 1994-4-15 94 -319 Orange Dana Hills, w ca 2 mi. of Cooks Reservoir Comment
  UC1607983  Medicago Donald G. Nelson 1935-3-30 200 Orange hills e. Fullerton (at head of Raymond Ave.) 76 Comment
  IRVC19532  Medicago minima R. L. Allen 1983-4-13 A 638 Orange Santa Ana; 3030 Camille St. at Arapaho. Southern Coastal Comment
  IRVC11700  Medicago polymorpha B. T. Gittins 1963-4-25 184-A Orange 1613 Sandalwood St.; yard weed. Costa Mesa Comment
  IRVC2385  Medicago polymorpha Polly Brecht 1965-4-3 s.n. Orange Newport Beach; Redlands Dr. and Cherry Tree Lane. Southern Coastal Comment
  RSA737483  Medicago polymorpha Fred M. Roberts 2008-3-12 6733 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCD107895  Medicago polymorpha Ira L. Wiggins 1966-3-22 20539 Orange About 5 miles above Ranger Station, Cleveland National Forest, Silverado Canyon. Comment
  RSA184191  Medicago polymorpha I. L. Wiggins 1966-3-16 20524 Orange 1 mile above Rangers house Firestone Boy Scouts Reservation. Comment
  RSA678730  Medicago polymorpha Fred M. Roberts, Laura Cohen 2000-3-24 5267 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 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
  RSA755559  Medicago rigidula A. C. Sanders, Fred M. Roberts 2008-3-25 34527 Orange Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA746483  Medicago rigidula R. E. Riefner Jr. 2008-5-12 08 -75 Orange Ladera Ranch, Cecil Pasture at Jerome Rd. 157 Comment
  UCD170851  Medicago truncatula A. C. Sanders; Fred M. Roberts 2008-5-6 35258 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro. 470 Comment
  UCR208447  Medicago truncatula R. E. Riefner Jr. 2008-3-24 08- 64 Orange South Coast, Rancho Santa Margarita, Tijeras Canyon, north c. 0.5 mi from Meandering Trails Road on Antonio Parkway 221 Comment
  CAS-BOT-BC227847  Melaleuca nesophila R. E. Riefner, Jr. 2011-7-1 11 -82 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1 mi from Poppy Avenue 1 Comment
  RSA785574  Melaleuca nesophila R. E. Riefner Jr., Cindy Hopkins 2011-7-1 11 -82 Orange City of Newport Beach. Beach area west of the end of Cameo Shores Road. South ca. 1 mi from Poppy Ave. 2 Comment
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Dec 20 2012
  SD241101  Melaleuca nesophila R. E. Riefner Jr. 2011-7-1 11 82 Orange City of Newpoprt Beach, beach area west of the end of Cameo Shores Road; south Ca. 1 mile from Poppy Avenue. 2 Comment
  SEINET10832869  Melaleuca nesophila Charlene A. Bennett 1976-7-22 Bennett 446 Orange Cultivated and native plants collected around the san clemente beach area. 3 Comment
  UC1929696  Melaleuca viminalis R. E. Riefner Jr. 2007-4-1 07 -163 Orange City of Laguna Niguel, Oso Creek, ca. 1.5 mi N from Paseo De Colinas St. on Camino Capistrano St. Comment
  RSA542366  Melica frutescens Fred M. Roberts 1988-3-15 3859 Orange Rancho Mission Viejo; Verdugo Canyon, 1.3 km SSW Lucan Survey Marker 201 Comment
  SD144119  Melica frutescens Scott D. White 1997-3-28 4840 Orange Above Modjeska Canyon, proposed water tank site 424 Comment
  UCR98486  Melica frutescens Scott D. White 1997-3-28 4840 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  POM296605  Melica imperfecta Lyman Benson 1932-3-26 3201 Orange Dana Point 60 Comment
  RSA262075  Melica imperfecta E. W. Lathrop 1966-4-18 6171 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA773501  Melica imperfecta Fred M. Roberts 1999-5-14 5221 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 502 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
  POM7085  Melica imperfecta var. flexuosa P. A. Munz, L. T. Street, G. Williams 1919-5-3 2659 Orange Santa Ana River Canyon. Comment
  IRVC2396  Melilotus albus Pat Rolfe 1965-4-24 s.n. Orange Ortega Highway. Santa Ana Mountains Comment
  IRVC2398  Melilotus albus L. Aldis 1965-4-24 Orange Huntington Beach; Stater Ave. Southern Coastal Comment
  HSC7688  Melilotus indicus J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  IRVC2426  Melilotus indicus Janet Bryant 1965-3-14 Orange Costa Mesa; Redlands Dr. and Santa Isabel. Southern Coastal Comment
  RSA0043353  Melilotus indicus David Barrios 1991-5-1 7 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  UCR191440  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-4-8 34722 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR241902  Melilotus indicus Fred M. Roberts 2012-4-24 7520 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
  POM201874  Melilotus indicus L. M. Booth 1932-5-12 1018 Orange Newport Bay. Comment
  SD239535  Melinis repens R. E. Riefner Jr. 2011-8-16 11 98 Orange Newport Beach, Orange County Parks & Recreation lands, along Newport Coast Drive, between Vista Ridge road and Alteza Road. 281 Comment
  SEINET3828309  Melinis repens R. E. Riefner Jr. 2011-1 11 -98 Orange Fuel modification areas. Newport Beach, Orange County Parks & Recreation lands, along Newport Coast Drive, between Vista Ridge& Alteza Rd. 281 Comment
  RSA725523  Mentha spicata var. spicata Fred M. Roberts, Robert L. Allen 2007-9-28 6601 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  RSA759267  Mentzelia Robt. Allen, Reginald Durant, David Taylor 2008-4-11 s.n. Orange Silverado Canyon, circa 1 air mile EENE above Maple Springs Forest Gate. 666 Comment
  RSA759203  Mentzelia micrantha Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, S face, base of a steep fire break cut from the summit down to the access road. Survey point 61. 1634 Comment
  CAS-BOT-BC435234  Mesembryanthemum crystallinum Carl B. Wolf 1932-6-28 3791 Orange Bryant Ranch near fence 100 ft. south of north west corner of the N.W.40 of S.E.160 of Sec. 27. T4S R11W. Comment
  CSUSB13  Mesembryanthemum crystallinum Heather Hanson 1966-5-5 s.n. Orange One mile south of Laguna on the beach Comment
  JEPS42909  Mesembryanthemum nodiflorum L. M. Booth 1932-8-5 1349 Orange Coastal Santa Ana Basin Comment
  POM768  Mesembryanthemum nodiflorum Daniel J. Crawford 1916-5-10 s.n. Orange Laguna Beach. Comment
  RSA18534  Mesembryanthemum nodiflorum C. B. Wolf 1927-7-23 663 Orange Along the coast just north of San Clemente. Comment
  RSA685937  Microseris douglasii subsp. platycarpha Fred M. Roberts, David E. Bramlet 2003-3-27 5621 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Chistianitos Cyn., 0.79km N Sycamore Gate, 0.23km W Chistianitos Rd. 122 Comment
  UCR104615  Microseris douglasii subsp. platycarpha D. E. Bramlet 1995-4-29 2403 Orange Fairview Park, Costa Mesa. 366m north of intersection of Wilson and Canyon drive and 152 m west of the Canyon School 43 Comment
  UCR108287  Microseris douglasii subsp. platycarpha D. E. Bramlet 1993-4-4 2311 Orange UCI, adjacent to UCI Ecological Reserve, Adjacent to end of Los Trancos DR. and 500 ft. east of the reserve entrance. 46 Comment
  UCR158096  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-4-25 150 Orange South Coast, San Joaquin Hills, upper Coyote Canyon, 1 km NW of Signal peak, 2.5 km east of San Joaquin Reservoir 268 Comment
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Nov 21 2015
  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
  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
  UCR209371  Microseris heterocarpa Fred M. Roberts, Linda Farley 2008-3-28 6817 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
  JEPS87319  Mimulus David M. Thompson 1992-5-16 1067 Orange 2.4 mi n Hwy 1 (along Hwy 133 (Laguna Canyon Road)) 50 Comment
  JEPS87331  Mimulus David M. Thompson 1992-5-16 1066 b Orange 2.4 mi n and w Hwy 74 (along USFS Road 3S04 (n side of paved loop allowing access to Main Divide Road)); Santa Ana Mts. 950 Comment
  UC943890  Mimulus H. E. McMinn, M. Van Rensselaer 1945-6-9 1910 AB Orange ca. 5 mi e Laguna Beach (on Laguna Canyon Highway) Comment
  UCR228796  Mimulus aurantiacus Dick Newell, Don Millar 2011-5-3 136 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  RSA649084  Mimulus aurantiacus subsp. australis Karl Price 1988-4-29 20 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
  SEINET3078496 Image available Mimulus aurantiacus subsp. australis Geoffrey Matthews, Jim Hearne, Robin Maetche 1971-5-13 s.n. Orange 4 miles north of Morrill Valley on Hwy 74 Comment
  UCR192087  Mimulus aurantiacus var. aurantiacus A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35300 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA298668  Mimulus aurantiacus var. pubescens D. C. Michener 1981-6-19 3975 Orange Starr Ranch Audubon Sanctuary. Coastal sage-scrub formation in headwaters of Crow Canyon. Comment
  UCD122401  Mimulus aurantiacus var. pubescens R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon. Comment
  UCSB52448  Mimulus aurantiacus var. pubescens Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills; Carbon Canyon; Carbon Canyon Rd; 0.3km by road SW county line; 2.5km NNW Gilman Peak 260 Comment
  RSA588893  Mimulus aurantiacus var. puniceus Fred M. Roberts, Carol A. Roberts 1990-5-31 4661 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  RSA747634  Mimulus aurantiacus var. puniceus Fred M. Roberts 2008-5-16 6981 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  RSA726130  Mimulus cardinalis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33017 Orange Peninsular Range; Santa Ana Mtns.: San Juan Canyon, from Lower San Juan Picnic Area to ca. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 366 Comment
  RSA716770  Mimulus clevelandii Fred M. Roberts, Michelle Balk, Robert Allen, Carol A. Roberts 2004-7-18 6075 Orange Santa Ana Mtns.: Upper Trabuco Cyn. along Trabuco Cyn. Trail, 1.3km NE Los Pinos Pk. and c.a. 0.25km by trail from Main Divide Truck Trail. 1245 Comment
  UCR158807  Mimulus clevelandii A. C. Sanders, Mark A. Elvin 2005-9-2 31612 Orange Santa Ana Mtns., near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak 998 Comment
  UCR230839  Mimulus clevelandii Dick Newell, Judy Booth 2011-6-19 181 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 1086 Comment
  UCSC000866  Mimulus clevelandii Peter Kamb 1948-6-19 1102 Orange Holy Jim Canyon, Santa Ana Mts. 610 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
  RSA790705  Mimulus guttatus W. Blanchard 1932-5-1 s.n. Orange Santiago Canyon. PR8. Comment
  RSA698208  Mirabilis laevis Stephen Bruff s.n. Orange Lemon Heights. Comment
  RSA732070  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-3-25 34556 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UCR190984  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-4-22 34994 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
  UCR191457  Mirabilis laevis A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34651 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
  UCR192489  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-3-25 34556 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UC536921  Mirabilis laevis var. crassifolia Lawrence M. Booth 1932-5-12 1035 Orange Newport Bay Comment
  UCR70867  Mirabilis linearis var. linearis E. L. Paddock 1942-8-12 11295 Orange Stern Ranch, Yorba Linda, John Manassero Lease Comment
  UCD98396  Mirabilis multiflora G. H. Vansell 1933-6-30 s.n. Orange location unknown. 914 Comment
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Sep 26 2020
  CAS-BOT-BC435043  Mollugo verticillata L. R. Abrams 1901-6-1 1769 Orange Laguna Comment
  RSA0010773  Mollugo verticillata I. M. Johnston 1924-7-10 s.n. Orange Laguna Canyon. Comment
  POM1190  Monanthochloe littoralis D. L. Crawford 1928-07 s.n. Orange Abalon Pt. Comment
  UCD86056  Monanthochloe littoralis L. M. Booth 1932-7-27 1318 Orange Newport Bay. Comment
  IRVC28229  Monardella hypoleuca A. C. Sanders, Mark A. Elvin 2005-9-2 31607 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Cyn, along the trail in switchbacks. Peninsular Ranges, Santa Ana Mtns 820 Comment
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Aug 13 2012
  RSA0005453  Monardella hypoleuca Carl B. Wolf 1936-6-22 8003 Orange Santa Ana Mtns, 3 miles above FS gate IN Santiago Canyon, along truck trail to Modjeska Peak. 762 Comment
  IRVC22034  Monardella hypoleuca subsp. hypoleuca Fred M. Roberts 1983-9-26 1128 Orange Lion Canyon, Chiquito Basin Trail, 3.5km NNE Lower San Juan Picnic Ground; 4.2km SSE Los Pinos Peak, Santa Ana Mountains 815 Comment
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Sep 18 2012
  RSA16470  Monardella lanceolata var. lanceolata Percy C. Everett 1935-6-19 s.n. Orange Santa Ana Mountains, Trabuco canyon, 1 3.4 miles below (W.) summit of truck traul. 976 Comment
  UCR238209  Monardella linoides Mark A. Elvin 2002-7-13 s.n. Orange Southern Coast, Irvine; UCI Arboretum 15 Comment
  RSA16484  Monardella macrantha subsp. hallii Percy C. Everett 1935-6-19 s.n. Orange Main Divide Motorway 1.5 miles below summit of Santiago Peak, E slope. 1311 Comment
  IRVC27048  Monardella viminea Mark A. Elvin 2005-2-8 3989 Orange UCI Arboretum Southern Coastal 15 Comment
  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
  RSA598923  Muhlenbergia microsperma Scott D. White 1997-3-28 4853 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA704079  Muhlenbergia microsperma D. E. Bramlet, Fred M. Roberts 2003-5-1 3431 a Orange Donna O'Neill Reserve. The site is located 61m west of Cristianitos Rd. and 396m north of the E-W Road. 121 Comment
  SD27973  Muhlenbergia microsperma Carl B. Wolf 1932-3-8 2689 Orange 1/2 mi. No. of Corona Del Mar. Borders of Newport Bay, low bluffs 7 Comment
  UCR215280  Muhlenbergia microsperma Fred M. Roberts 2008-3-27 6811 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
  UCSB52473  Muhlenbergia microsperma Roberts, Fred 1983-1-7 Orange Park Canyon along west flank of Temple Hill; 1,7km SE Bench Mark 104; 1.7km NE Thurston High School; Laguna Beach 230 Comment
  RSA0010807  Myoporum laetum James Henrickson 1970-9-5 5347 Orange 2 mi NW of Huntington Beach in southern open portion of Bolsa Chica Salt Marsh 0 Comment
  RSA0010809  Myoporum laetum Robert F. Thorne 1975-4-6 45588 Orange San Joaquin Marsh: north margin of marsh Comment
  POM202029  Nama stenocarpa L. M. Booth 1932-7-1 1235 Orange Anaheim Marsh Comment
  UCR157698  Nama stenocarpa Adrian Wolf 1998-7-1 414 Orange South Coast, Peters Canyon Channel, east of channel between Alton and Barranca, west of Harvard 12 Comment
  UCR158038  Nama stenocarpa Adrian Wolf 1998-6-23 358 Orange South Coast, northernmost of the Laguna Lakes in Laguna Canyon, southern edge of lake on west side of Laguna Canyon Rd. 119 Comment
  RSA598968  Nassella lepida Scott D. White 1997-3-28 4839 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA638967  Nassella lepida Valerie L. Soza, LeRoy Gross 1999-6-8 500 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA680735  Nassella lepida Scott D. White 2003-3-21 s.n. Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UC971747  Nassella lepida L. M. Booth 1932-5-12 1036 Orange Newport Bay Comment
  RSA542547  Nassella pulchra Fred M. Roberts 1988-2-9 3782 Orange Lomas De Santiago: Loma Ridge, 1.5km N Bee Survey Mark., UTM 373 3700m N, 435 200m E 385 Comment
  IRVC29691  Nasturtium Barry S. Nerhus, Mark A. Elvin 2006-11-4 3 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  CAS-BOT-BC60334  Nasturtium officinale Ira L. Wiggins 1965-10-27 20308 Orange Along Brea Canyon Road, just southwest of Los Angeles County Line. Comment
  RSA592109  Navarretia atractyloides R. E. Riefner 1994-4-15 94 -338 Orange NE of Moulton Meadow Park, Nyes Place Road, City of Laguna Beach. Comment
  RSA603289  Navarretia hamata subsp. leptantha R. E. Riefner 1997-7-18 97 -240 Orange Near Fullerton Nature Park. Comment
  RSA113269  Nemacaulis denudata var. denudata E. K. Balls 1955-4-4 20419 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101 Comment
  RSA653148  Nemacaulis denudata var. denudata Judy Knouse 1974-5-5 s.n. Orange Newport Peninsula, 8th and 9th St. sand dunes 2 Comment
  JEPS5413  Nemacladus longiflorus var. longiflorus Alice King May 1907 Orange near Santa Ana Comment
  RSA3166  Nemophila menziesii Carl B. Wolf 1932-3-8 2697 Orange Santiago Dam, W. base Santa Ana Mts. 305 Comment
  RSA75869  Nemophila menziesii var. integrifolia F. W. Peirson 1923-5-6 3495 Orange Large patches on summit region. Santiago Peak, Santa Ana Mts 1723 Comment
  CAS-BOT-BC478169  Nephrolepis cordifolia R. E. Jr. Riefner 2014-6-14 14 -171 Orange City of Newport Beach, Cliff Drive Park, along Cliff Drive, near Beacon Street 44 Comment
  IRVC155  Nephrolepis exaltata var. bostoniensis Lance McCabe 1965-5-4 HS 536 Orange Corona del Mar. Southern Coastal Comment
  RSA0026262  Nerium oleander Fred M. Roberts 2013-6-12 7787 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  RSA17173  Nicotiana bigelovii var. wallacei Percy C. Everett 1935-6-28 7259 Orange 8/10 of a mi. east of Atwood. S. side of R. R. tracks. 1067 Comment
  UC566776  Nicotiana clevelandii Herbert L. Mason 1926-4-25 2929 Orange 5 mi s Laguna (sea cliffs) Comment
  UCR267213  Nicotiana clevelandii Fred M. Roberts, Lee Ann Caranza 2009-4-7 7140 Orange South Coastal Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor 60 Comment
  CAS-BOT-BC231675  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange Stearns Lease, 1 1/2 miles e. of Brea Comment
  IRVC28777  Nicotiana glauca Archie F. Iskaq 2006-2-4 3 Orange San Joaquin Marsh; NW Edge of Marsh. Southern Coastal 3 Comment
  OBI28517  Nicotiana glauca R. L. Allen 1978-8-28 s.n. Orange Mission Viejo, near Saddleback Ranch Apts; Los Alisos Blvd Comment
  RSA701973  Nicotiana glauca Fred M. Roberts, David E. Bramlet 2003-6-20 5925 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  UCD126652  Nicotiana glauca E. Frost 1996-5-11 18 Orange Newport Back Bay, 35 yards in along bike path. 7 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
  RSA0011259  Nicotiana glauca L. A. Anderson 1948-2-8 s.n. Orange In Trabuco Canyon, east of El Toro. 457 Comment
  UCR191318  Nicotiana quadrivalvis A. C. Sanders, Fred M. Roberts 2008-4-8 34743 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA20634  Nolina cismontana Philip A. Munz 1923-7-8 7329 Orange Santa Ana River Canyon Comment
  RSA232073  Nolina cismontana C. W. Tilforth 1972-8-20 623 Orange Along County Rd. S19, between Cooks corner and O Neil Park Comment
  RSA725582  Nolina cismontana Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6532 Orange dirt road along ridge between Black Star and Fremont Canyons, 4.4km ENE Irvine Lake spillway and 2.4km WSW Hidden Ranch. 662 Comment
  RSA751322  Nolina cismontana A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35290 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 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
  UCR61531  Nolina cismontana James C. Dice 1986-5-31 s.n. Orange Mission Viejo, 1.2 km NW of Lake Mission Viejo, along SW edge of Vista delLago just west of the intersection w/ Canaveras 275 Comment
  RSA531  Oenanthe sarmentosa J. T. Howell 1927-7-14 398 Orange Santa Ana River bottom, Rancho Santa Ana. 152 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
  UCR239883  Oenothera laciniata O. F. Clarke 2004-4-5 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  RSA783221  Oenothera micrantha J. D. Olmsted 1959-5-1 516 Orange 3/4 miles west of Oat Flat along old road from Main Divide Motorway into Sierra Canyon 777 Comment
  POM202038  Oligomeris linifolia L. M. Booth 1932-5-24 s.n. Orange West Side of Newport Lagoon. Comment
  RSA80683  Oligomeris linifolia F. W. Peirson 1925-4-11 5744 Orange 5 miles southeast of Laguna Beach. Comment
  CAS-BOT-BC427454  Oligomeris linifolia Bradshaw 1902-1-1 s.n. Orange Arch Beach Comment
  RSA792124  Oncosiphon piluliferum R. E. Riefner Jr. 2011-5-20 11 -57 Orange Newport Beach, Coastal Peak Park, East Coastal Peak Road at Ridge Park Road 305 Comment
  RSA562722  Opuntia X occidentalis Steve Boyd, Timothy S. Ross 1992-5-19 7425 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
  UCR237804  Opuntia X occidentalis Mark A. Elvin 2004-5-2 3412 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  POM317069  Opuntia littoralis David Walkington 1962-11-18 63 Orange West side of N Euclid Ave. north of Sunny Hills West Home, Fullerton. 76 Comment
  CAS-BOT-BC56867  Opuntia oricola L. R. Abrams 1917-6-23 6558 Orange Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC500129  Orobanche fasciculata Le Roy Abrams 1901-6-15 1847 Orange Santiago Peak Comment
  RSA658636  Orthocarpus purpurascens var. purpurascens Al Muth 1971-3-26 30 Orange Jct. Santiago Cyn. Road and Modjeska Cyn Road. 457 Comment
  CAS-BOT-BC355776  Osmadenia tenella Agnes M. Bowman 1899-6-1 s.n. Orange Santiago Cr. Comment
  CAS-BOT-BC355778  Osmadenia tenella John Thomas Howell 1927-7-28 2867 Orange On n. side of Santa Ana Canon [Canyon] 182 Comment
  CAS-BOT-BC355768  Osmadenia tenella G. D. Carr 1971-7-14 585 Orange 2.5 mi NE of San Juan Capistrano on Hwy 74 69 Comment
  SEINET10875323  Osteospermum ecklonis David B. Dunn 1971-8-13 Dunn 18120 Orange Cultivated plants vicinity of Laguna Beach. Comment
  SEINET3347204 Image available Oxalis cernua J. R. Glen 1957-5-3 Orange .5 miles from the San Bernardino County line. 3 miles east of Olinda along Carbon Canyon road. 201 Comment
  RSA731798  Oxalis corniculata Fred M. Roberts, Sandy Leatherman 2007-11-9 6639 Orange Santa Ana Mtns.: San Juan Canyon, Lower San Juan Picnic Ground. 408 Comment
  OBI30391  Oxalis pes-caprae B. Thomas 1967-12-30 147 -74 Orange 4 yds S of Cal State Fullerton's Science Bldg entrance in the fl bed Comment
  POM353419  Oxalis wrightii F. R. Fosberg 1931-6-21 S 5097 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA700032  Paeonia californica L. C. Hull 1934-3-11 s.n. Orange Ortega Highway Comment
  UC484239  Paeonia californica C. B. Wolf 1931-3-6 1842 Orange 1/2 mi above, w slope of mts. Trabuco Oaks; Santa Ana Mts., Trabuco Canyon 457 Comment
  RSA162751  Paeonia californica J. D. Olmsted 1958-3-4 19 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
  RSA588782  Paeonia californica Fred M. Roberts, Nicole Orlik 1990-4-11 4716 Orange Santa Ana Mountains: East Fork Upper Long Canyon, along Main Divide Truck Trail, 4.4 kilometers SE Los Pinos Peak. 750 Comment
  RSA797016  Pallenis maritima R. E. Riefner Jr. 2011-7-1 11 -86 Orange City of Newport Beach, rocky beach between Shorecliff Road and Cameo Shores Road. 1 Comment
  UC2014877  Pallenis maritima R. E. Riefner Jr. 2011-6-25 11 -74 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. Comment
  POM366043  Panicum capillare Anonymous 1914-8-21 30 Orange Found growing at road side near Smeltzer Comment
  RSA92454  Panicum capillare F. W. Peirson 1924-10-19 5230 Orange Wintersberg Comment
  CAS-BOT-BC389660  Panicum coloratum R. E. Riefner, Jr. 2014-7-6 14 -218 Orange City of Los Alamitos, along Los Alamitos Channel, E of 605 Fwy., N of Katella Ave., S of Coyote Creek, NE of Oak Academy Park, vicinity of Adobe Dr. and Acorn Ln. 11 Comment
  RSA13135  Papaver californicum Percy C. Everett 1935-5-29 7094 Orange Santa Ana Mts, Head of Claymine Canyon. 762 Comment
  RSA594821  Papaver californicum Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4915 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  RSA649680  Papaver californicum R. E. Riefner 2000-4-15 20 -375 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N, but W of Black Star Cyn. Road at powerline tower. 520 Comment
  RSA678504  Parapholis incurva Valerie L. Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1119 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  SEINET182347 Image available Parapholis incurva Lawrence M. Booth 1932-5-12 1009 Orange Newport Bay Comment
  UCR179758  Parapholis incurva R. E. Riefner Jr. 2005-7-9 05- 547 Orange South Coast, Huntington Beach, vicinity of Cynthia Dr. and Lavonne Lane along the Santa Ana River 7 Comment
  UCSB52898  Parietaria hespera Roberts, Fred; Roberts, Dar 1983-3-22 Orange Santa Ana Mtns.: San Juan Canyon, Calif. Rte. 74, south side, 4.3km by road E San Juan Guard Station; 2.3km WNW Sitton Peak 407 Comment
  SD247341  Parthenium hysterophorus Jan West 2015-4-22 Orange Santa Ana, SE corner of E 17th St. and Lincoln Ave., 0.5 km east of I-5 on 17th. Right-of-way between RR tracks and Lincoln, etc. 49 Comment
  RSA725537  Parthenocissus inserta Fred M. Roberts, Robert L. Allen 2007-9-28 6609 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  POM12439  Paspalum distichum P. A. Munz 1922-9-2 6352 Orange Ponds in Laguna Canyon 46 Comment
  RSA696379  Paspalum distichum Keith E. Hoffmaster 1933-10-29 s.n. Orange Near Tustin Comment
  UC455151  Paspalum distichum I. J. Condit 1908-7-21 Orange Los Alamitos Comment
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Nov 20 2010
  UCR192987  Paspalum distichum A. C. Sanders, Fred M. Roberts 2008-6-17 35499 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  RSA766072  Paspalum pubiflorum R. E. Riefner Jr. 2009-10-10 09 -222 Orange City of Yorba Linda, Santa Ana Canyon, N bank of Santa Ana River, E of Weir Canyon Rd., vicinity of La Palma Ave. and Mercado del Rio. 107 Comment
  SEINET6655640  Paspalum urvillei R. E. Riefner Jr. 2005-11-4 05 -742 Orange City of Lake Forest, Alton Pkwy at Bertea Rd.; 0 123 Comment
  RSA0089484  Paspalum vaginatum D. E. Bramlet 2009-11-27 4429 Orange South Coast: San Diego Creek between Irvine and Newport Back Bay. 4 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
  RSA737240  Paspalum virgatum R. E. Riefner, K. Campbell 2008-8-31 08 -267 Orange Orange County: city of Irvine, San Diego Creek, E side of Hwy 73 overpass, alt 2ft. 1 Comment
  RSA732068  Pectocarya linearis A. C. Sanders, Fred M. Roberts 2008-3-25 34525 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA401952A  Pedicularis densiflora Christopher Davidson 1977-5-18 5601 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  RSA698932  Pedicularis densiflora Unspecified 1935-02 s.n. Orange Ortega highway near San Juan Springs. Comment
  RSA710818  Pelargonium A. C. Sanders, Mark A. Elvin 2003-10-12 27314 Orange Southern Coastal Slope: Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blve. and Campus Dr. 15 Comment
  SD174884  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange Southern Coastal: UCI Arboretum, growing wild in the Arboretum grounds, not cultivated. 14 Comment
  UCR188941  Pelargonium X domesticum Robert DeRuff 2004-1 547 A Orange Newport Beach, Upper Newport Bay, Eastbluff North area 25 Comment
  UCR97819  Pellaea andromedifolia Scott D. White 1997-3-28 4835 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  CAS-BOT-BC71393  Pellaea mucronata Carl B. Wolf 1933-8-24 5396 Orange Santa Ana Mts., summit of Santiago Pk. 1731 Comment
  RSA739323  Pellaea mucronata Keith E. Hoffmaster 1931-1-1 33 Orange Santa Ana Mountains Comment
  UCSB52421  Pellaea mucronata Roberts, Fred; Meyers, J. 1982-11-7 Orange Santa Ana Mtns.; Lion Canyon, Chiquito Basin Trail, 3.6 km. S Blue Jay Campground; 2.4 km. NNE lower San Juan Campground 800 Comment
  UC1543033  Pellaea mucronata var. mucronata Donald G. Nelson 1935-4-6 241 Orange e of San Juan Capistrano (and just s of boundary of Cleveland Nat'l Forest, canyon with stream branching n from summer ranger station on main hwy); San Juan Canyon Comment
  RSA328946  Pennisetum ciliare var. ciliare J. West 1983-10-8 s.n. Orange City of Orange. Comment
  UCR182899  Pennisetum setaceum Dean Kelch 2006-12-9 06 .564 Orange Irvine. University Dr. along tidal Creek just east of I-73 9 Comment
  UCR181158  Pennisetum villosum R. E. Riefner Jr. 2003-11-30 03- 486 Orange South Coast, Santa Ana, 55 Freeway near Brookhollow St. 32 Comment
  RSA0054896  Penstemon antirrhinoides Keith E. Hoffmaster 1931-3-22 524 Orange Santa Ana Mts. Comment
  RSA0054891  Penstemon cordifolius Keith E. Hoffmaster 1941-7-14 1251 Orange At Blanding Nursery, Santa Ana. Comment
  RSA761802  Penstemon grinnellii Robert Allen 2003-6-22 12271 Orange Northwest-facing flank of Santiago Peak, along North Main Divide Road. 1556 Comment
  POM18089  Penstemon heterophyllus var. australis Philip A. Munz 1923-9-7 7748 Orange Santiago Peak in Santa Ana Mountains. 1707 Comment
  RSA298694  Penstemon spectabilis D. C. Michener 1982-5-24 4044 Orange Open road bank along Main divide truck route 5.4 mi. north of El Cariso. Comment
  UCSB52875  Pentachaeta aurea Roberts, Fred; Allen, R. 1983-3-27 Orange Dana Point Headlands; north of Dana Strand Rd., 0.5 km. W Dana Point Harbor; 0.7 km. SSW Richard Henry Dana School 79 Comment
  IRVC19371  Pentagramma triangularis subsp. triangularis R. L. Allen 1975-12-29 Orange Dana Hills High School Canyon; east-facing slope under coastal sageplant. Dana Point Comment
  RSA687405  Pentagramma triangularis subsp. triangularis Norman C. Cooper 1949-5-1 3951 Orange San Juan Canyon 610 Comment
  LA204536  Peritoma arborea A. M. Johnson; 1927-12-30 sn Orange Laguna 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
  UC537279  Petunia parviflora L. M. Booth 1932-12-16 1378 Orange near coast Santa Ana River Comment
  UCR230840  Phacelia brachyloba Dick Newell, Judy Booth 2011-6-19 182 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 1086 Comment
  RSA0045162  Phacelia brachyloba Steve Smith 2005-04 24 Orange Caspers Wilderness Park, along bluffs of recovering burn area. Comment
  RSA221010  Phacelia cicutaria var. hispida E. W. Lathrop 1966-4-18 6174 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA647938  Phacelia cicutaria var. hispida Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 26 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  RSA749315  Phacelia cicutaria var. hispida Fred M. Roberts, Linda Farley 2008-3-28 6820 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber s Peak, Irvine Land Conservancy. 437 Comment
  RSA699147  Phacelia cicutaria var. hubbyi Helen Stanley s.n. Orange Limestone Canyon. Comment
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Jun 12 2019
  RSA426058  Phacelia davidsonii M. B. Dunkle 1935-2-10 4334 Orange Laguna Creek; Coastal Southern California. 61 Comment
  RSA759253  Phacelia davidsonii Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, N face, along access road up Modjeska Peak, outside the sharp bend in the extreme end of the road. Survey Point #47. 1514 Comment
  HSC13701  Phacelia distans S. M. Clapp 1966-4-10 44 Orange 4 mi. into Black Star Canyon 183 Comment
  POM8712  Phacelia distans P. A. Munz, R. D. Harwood 1920-4-17 3805 Orange Laguna Canyon 76 Comment
  RSA500684  Phacelia distans M. B. Dunkle 1935-3-3 4348 Orange San Juan Canyon. 427 Comment
  RSA699772  Phacelia distans Keith E. Hoffmaster 1927-4-8 s.n. Orange Santa Ana Mountains. Comment
  UC672414  Phacelia distans Herbert L. Mason 1926-4-25 2925 Orange 5 mi s Laguna Comment
  POM299068  Phacelia distans J. T. Howell 1928-6-24 2590 Orange Olinda. 152 Comment
  RSA542476  Phacelia distans Fred M. Roberts, T. Sholars 1988-3-29 3877 Orange San Joaquin Hills: Laguna Canyon along Laguna Canyon road, 2kim by road N Pacific Coast Hwy, 2.1km E guna Survey Marker. 34 Comment
  RSA650516  Phacelia distans Shlomo Gat 1959-03 20 Orange Santa Ana Canyon. Comment
  RSA734592  Phacelia grandiflora A. C. Sanders, Fred M. Roberts 2008-5-6 35220 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  UCR191235  Phacelia hubbyi A. C. Sanders, Fred M. Roberts 2008-4-22 34985 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
  RSA697776  Phacelia imbricata subsp. patula Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. 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
  RSA428089  Phacelia minor Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak. Comment
  UCSC001518  Phacelia minor Peter Kamb 1948-6-19 1111 Orange Southeast slope of the Santiago Peak Santiago Peak - Santa Ana Mts. - county listed as "Orange County-Riverside County" on primary lable 1219 Comment
  RSA758890  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-4-22 34990 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 213 Comment
  UCR263590  Phacelia parryi Ed Kentner 2012-4-5 126 Orange Lomas de Santiago, Whiting Ranch Wilderness Park 330 Comment
  RSA0027430  Phacelia ramosissima Fred M. Roberts 2013-7-18 7663 Orange San Joaquin Hills: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill. 52 Comment
  UCR16840  Phacelia ramosissima N. J. Moriarty 1973-5-20 730520- 5 Orange Huntington Beach, 0.6 mi. north of Newland Street on the E side of Pacific Coast Hwy (= Hwy 1) Comment
  CAS-BOT-BC6834  Phacelia ramosissima var. austrolitoralis John Thomas Howell 1927-7-17 2790 Orange 1 mile N of Laguna Beach 15 Comment
  RSA632  Phacelia ramosissima var. austrolitoralis J. T. Howell 1927-6-3 21 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC145006  Phacelia ramosissima var. latifolia John Thomas Howell 1927-6-21 2567 Orange [Canon] Canyon in west side of Botany Garden, Rancho Santa Ana, Santa Ana [Canon] Canyon 152 Comment
  UC537058  Phacelia tanacetifolia P. A. Munz 1934-3-26 13133 Orange ravine Newport Beach 12 Comment
  SEINET3119073 Image available Phacelia tanacetifolia P. A. Munz 1934-3-26 13133 Orange Newport Beach 12 Comment
  IRVC8439  Phalaris aquatica J. B. Anderson 1966-5-15 642 Orange Upper Newport Bay: along Irvine Avenue at 23rd Street. Southern Coastal Comment
  RSA610233  Phalaris lemmonii Fred M. Roberts, T. Bomkamp, R. Riefner 1996-4-19 4964 Orange Costa Mesa; Fairview Park, 0.1km W Canyon School 24 Comment
  CAS-BOT-BC250614  Phalaris minor Carl B. Wolf 1932-5-18 3636 Orange Rancho Santa Ana Botanic Garden, near East porch of administration bldg. 198 Comment
  JEPS111464  Phalaris minor J. B. Anderson 1966-4-22 603 Orange San Joaquin Hills: Along dirt road in Los Trancos Canyon Comment
  POM263105  Phalaris minor J. C. Roos 1937-5-10 431 Orange Tustin Comment
  IRVC21804  Phalaris paradoxa B. L. Parry, Fred M. Roberts 1985-5-21 141 Orange San joaquin Hills: Central Moro Cyn, Crystal Cove St Pk, 3.5km S of Signal Peak, 1.7km NE of El Morro Sch. Southern Coastal 20 Comment
  UCSB68450  Phalaris paradoxa Anderson, J. 1966-4-26 Orange University of California, Irvine; south of Science Lecture Hall Comment
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Nov 1 2018
  POM356937  Phalaris paradoxa Anstruther Davidson 1916-6-1 3156 Orange Brea Ranch Comment
  SEINET10746310  Philodendron Thomas B. Croat 2003-4-5 Croat 87594 Orange Cultivated Plants from Rick M. Cirino, Cosa Mesa, California. Comment
  POM8746  Pholistoma auritum P. A. Munz, R. D. Harwood 1920-4-25 3725 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  UCR98214  Pholistoma auritum B. G. Pitzer 1997-4-15 3135 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
  UCSB44692  Pholistoma auritum Hibbard, Doug 1977-3-4 Orange Off the south side of Back Bay Rd., 0.7 miles from its crossing with Jamboree Blvd., New Port Beach 4 Comment
  RSA683070  Pholistoma auritum var. auritum Fred M. Roberts, D. E. Bramlet 2003-3-13 5599 Orange Donna O Neill Land Conservancy: Flagpole Meadow, upper Shady Cyn. W of Cristianitos Canyon, 1,500m NW Sycamore Gate and 1,220m W Cristianitos Rd. 173 Comment
  POM182012  Phyla lanceolata F. W. Peirson 1924-8-29 5094 Orange Road from Artesia to Hungtington Beach, along ditch Comment
  POM3998  Phyla lanceolata D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon Comment
  RSA660595  Phyla nodiflora R. E. Riefner 2000-8-17 20 -726 Orange NCCP North Ranch Policy Plan Area. Silverado Creek near Forest Station. 328 Comment
  RSA683955  Phyllospadix scouleri E. Yale Dawson 1957-11-21 17886 Orange Laguana Beach, Orange County Comment
  CAS-BOT-BC452024  Phyllospadix torreyi L. R. Abrams 1917-6-25 6579 Orange Balboa Comment
  RSA683962  Phyllospadix torreyi N. C. Cooper 1942-11-8 890 Orange Laguna Beach. Comment
  RSA683970  Phyllospadix torreyi E. Yale Dawson 1956-12-2 15646 Orange Corona del Mar, Station no 9, 230-260 ft from shore base point Comment
  UCR19761  Phyllospadix torreyi F. M. Reed 1932-5-24 7233 Orange South Coast, San Juan Capistrano, behind beach dune Comment
  RSA731932  Physalis philadelphica Fred M. Roberts, Sandra Leatherman 2007-11-27 6678 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 Comment
  CAS-BOT-BC73334  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange So. slope of main ridge, saddle n.w. of Sugarloaf Pk. (Pleasants Pk) 1 3/10 mi. so. of summit of Skyline Drive, 1158 Comment
  NY34650  Pinus attenuata C. B. Wolf 1934-12-21 6259 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UCR231189  Pinus attenuata A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39943 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  UCR193349  Piptatherum miliaceum A. C. Sanders 2008-5-28 35438 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCSB48208  Piptatherum miliaceum Roberts, Fred 1981-7-8 Orange Rancho Mission Viejo; Calif. Rte. 74, 9.2 km. ENE San Juan Capistrano 100 Comment
  RSA756321  Pistacia chinensis A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37202 Orange Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., near Agustine Staging Area at south foot of Blue Diamond Haul Rd. bridge over Santiago Canyon Rd. 253 Comment
  UCR162342  Pittosporum tobira Robert DeRuff 1984-1 242 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, North Star Beach 30 Comment
  RSA715258  Plagiobothrys acanthocarpus R. E. Riefner 2006-4-12 6 -116 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. 46 Comment
  UCR192485  Plagiobothrys canescens A. C. Sanders, Fred M. Roberts 2008-3-25 34511 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR102021  Plagiobothrys collinus B. G. Pitzer 1997-3-25 3025 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR192474  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-3-25 34542 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  POM155843  Plagiobothrys collinus var. californicus L. R. Abrams 1903-4-15 3315 a Orange Buena Park. Comment
  RSA368943  Plagiobothrys collinus var. californicus Albert J. Perkins 1914-3-9 s.n. Orange Laguna Beach Comment
  RSA627747  Plagiobothrys collinus var. californicus Scott D. White 1998-3-18 6211 Orange UCI Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Berkley Ave. and new Freeway (Bonita Cyn.). Plains dissected by a series of gullies. 37 Comment
  RSA683082  Plagiobothrys nothofulvus Scott D. White, Amanda Duchardt 2003-5-1 9157 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  UC1929780  Plagiobothrys nothofulvus Scott D. White, Amanda Duchardt 2003-3-27 8858 Orange SANTA ANA MOUNTAIN FOOTHILLS: Canyon bottom and west facing slopes above Canada Gobernadora. Comment
  RSA3168  Plagiobothrys nothofulvus C. B. Wolf 1932-3-8 2695 Orange Santiago Dam at W base of Santa Ana Mts. 305 Comment
  UCSB47617  Plagiobothrys nothofulvus Roberts, Fred 1980-5-3 Orange Santa Ana Mtns.: 0.3 km. NNW Blue Jay Campground 1020 Comment
  RSA588771  Plagiobothrys tenellus Fred M. Roberts, Carol A. Roberts, D. E. Bramlet 1990-5-6 4593 Orange Santa Ana Mnts.: Chiquito Basin, San Juan Trail, c.a. 2.5 km SSE Los Pinos Peak. 915 Comment
  RSA412598  Plantago bigelovii subsp. californica Anstruther Davidson 1910-04 2350 Orange Corona Del Mar. Comment
  RSA401985A  Plantago erecta Jeannette B. Edge 1934-3-10 18931 Orange Corona del Mar. Gully facing Newport Bay. 30 Comment
  RSA681952  Plantago erecta Fred M. Roberts, D. E. Bramlet 2003-3-7 5564 Orange Donna O'Neill Land Conservancy; West slopes of Christianitos Canyon, Middle Ridge Trail, 0.1km NW Gato Gate. 123 Comment
  RSA682593  Plantago erecta Scott D. White 1998-3-24 6232 Orange University of California, Irvine Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 24 Comment
  UC76652  Plantago lanceolata E. A. Jumbro 1902-1 382 Orange Comment
  RSA698384  Plantago major R. H. McArthur 1934-4-14 s.n. Orange Forks of Laguna Canyon. Comment
  SEINET12336292  Plantago major S. A. Thompson, Rawlins, J. E. 1988-1 5267 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  RSA0028737  Plantago pusilla R. E. Riefner 2000-3-14 20 -135 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N from Baker Cyn.Road. 305 Comment
  POM128994  Plantago rhodosperma Anstruther Davidson 1908-5-1 1791 Orange Corona del Mar Comment
  RSA424280  Plantago subnuda Anstruther Davidson 1908-5-1 1791 Orange Corona del Mar Comment
  RSA424278  Plantago virginica Albert J. Perkins 1920-6-15 s.n. Orange Santa Ana Comment
  RSA592105  Plantago virginica R. E. Riefner 1994-4-15 94 -324 Orange NE of cooks Reservoir, Dana Hills, City of Dana Point. Comment
  UC635457  Platystemon californicus Herbert L. Mason 1926-4-25 2936 Orange 5 mi s Laguna; s of Laguna Comment
  RSA443847  Platystemon californicus Gordon Marsh, Karlin G. Marsh 1978-3-30 37 Orange Ortega Hwy, S side next to Hwy marker #37, near Conrock entrance. Comment
  OBI74895  Plecostachys serpyllifolia Unknown 2009-7-18 09 -151 Orange City of Dana Point, beach near Salt Crk, vicinity of Ritz Carlton Resort 3 Comment
  SD247344  Plecostachys serpyllifolia R. E. Jr. Riefner 2008-7-9 08 220 Orange City of Laguna Beach, bluff area W of West St. and Pacific Coast Highway. 4 Comment
  SEINET6413740  Plecostachys serpyllifolia R. Spellenberg 2014-5-6 14775 Orange Laguna Beach, Aliso Creek Beach Park; ca 500 m S of lat/long. 1 Comment
  UC2061642  Plecostachys serpyllifolia R. E. Riefner Jr. 2006-7-26 06 -319 Orange City of Irvine, N side of Irvine Blvd. at SR-133 on-ramp. Comment
  UCR229286  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-7-7 11- 88 Orange city of Dana Point, south of Mussel Cove, north of Salt Creek Beach Park 9 Comment
  RSA639704  Pluchea odorata Scott D. White 1998-12-10 720 Orange Brea: Tonner Canyon and adjacent slope, just east of 57 Freeway crossing. 137 Comment
  SBBG125306  Pluchea odorata M. H. White 2006-9-23 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve, SW edge, along San Diego Crk, N of University Drive, E Hwy 73 2 Comment
  RSA131096  Pluchea odorata E. K. Balls, E. R. Blakley 1958-10-15 23721 Orange In Narrow Canyon E oif Laguna Canyon, S side Santa Cruz Island. 5 Comment
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Jun 27 2013
  POM201633  Pluchea sericea L. M. Booth 835 Orange Santa Ana Canyon. Comment
  UCR220961  Pluchea sericea Dick Newell, Don Millar 2010-4-27 020 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon wash 1/4 mile north of Hwy 241 toll road 226 Comment
  CAS-BOT-BC255537  Poa annua Ira L. Wiggins 1966-2-1 20405 Orange Just E of Letters & Science building, California State College at Fullerton Comment
  IRVC1625  Poa annua Diane Ibbetson 1965-4-10 s.n. Orange Trabuco Canyon. Southern Coastal Comment
  IRVC1789  Poa annua I. L. Wiggins 1966-2-1 20405 Orange California State College, Fullerton; orange grove just E of Letters and Science Building. Southern Coastal Comment
  RSA731925  Poa annua Fred M. Roberts, Sandy Leatherman 2007-11-27 6685 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  UCR193623  Poa annua A. C. Sanders, T. B. Salvato 2008-5-13 35357 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
  UCR99859  Poa annua Scott D. White 1993-3-5 1129 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA697757  Poa annua Margaret Smart 1934-4-23 s.n. Orange Santa Ana. Comment
  RSA91683  Poa howellii F. W. Peirson 1923-5-6 3491 Orange Trail to Santiago Peak from Holy Jim Canyon. 991 Comment
  IRVC8445  Poa scabrella J. B. Anderson 1966-5-3 636 Orange Silverado Cyn; Modjeska Pk Rd Santa Ana Mtns 1372 Comment
  RSA73  Poa secunda J. T. Howell 1928-2-7 830 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  SD181748  Poa secunda subsp. secunda Valerie Soza, LeRoy Gross 1999-6-7 489 Orange Santa Ana Mountains, west side of Modjeska Peak, along Main Divide Road 1448 Comment
  CAS-BOT-BC402184  Polygala cornuta var. fishiae R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49615 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station, lateral ravine tributary to San Juan Canyon Comment
  RSA425  Polygala cornuta var. fishiae J. T. Howell 1927-7-3 258 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA5379  Polygala cornuta var. fishiae B. D. Stark 1932-12-30 4460 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  SD152784  Polygala cornuta var. fishiae Steve Boyd 1992-5-20 7478 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area, Western edge in Lucas Canyon, along foot trail upstream from end of old road grade to upper homestead (corrugated steel bldg) 351 Comment
  SD245439  Polygala cornuta var. fishiae Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49615 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station, lateral ravine tributary to San Juan Canyon. Comment
  CAS-BOT-BC414040  Polygonum aviculare subsp. aviculare John Thomas Howell 1927-6-21 2564 Orange North side of Santa Ana Canon [Canyon] 152 Comment
  POM201766  Polygonum aviculare subsp. aviculare L. M. Booth 1932-7-4 1254 Orange Newport Lagoon. Comment
  RSA5970  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-9-13 4043 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike and Well. 6 Comment
  RSA788965  Polygonum lapathifolium Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49580 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UC536913  Polygonum lapathifolium Lawrence M. Booth 1932-7-30 1342 Orange Santa Ana River Comment
  RSA0054922  Polygonum lapathifolium Keith E. Hoffmaster 1933-10-1 488 Orange Near Tustin. Comment
  IRVC3045  Polypodium californicum A. S. Boughey 1965-3-5 51 Orange Trabuco Canyon. Santa Ana Mountains Comment
  IRVC19368  Polypodium californicum R. L. Allen 1977-2-13 s.n. Orange [San Juan Canyon], Ortega Hwy, roadside 111; small side canyon, NW of main canyon. Santa Ana Mountains Comment
  RSA698542  Polypodium californicum L. Griset 1929-2-10 s.n. Orange Top of Modena Grade. Comment
  RSA791491  Polypodium californicum R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49648 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA697072  Polypogon interruptus Rankin s.n. Orange Irvine Park Comment
  CAS-BOT-BC237265  Polypogon monspeliensis Peter H. Raven 1957-9-28 11375 Orange N limits of Surfside Comment
  IRVC15372  Polypogon monspeliensis J. B. Anderson 1966-4-22 607 Orange San Joaquin Hills: Los Trancos Canyon, along dirt road and near spring. Santa Ana Mountains 122 Comment
  RSA678719  Polypogon monspeliensis Fred M. Roberts, Michelle Lee 2001-6-29 5504 Orange Rancho Mission Veijo: Chiquita Ridge, 0.3km WnW Rancgo Macian Survey Marker. PCR Vernal Pool 4., (33 33'11N,117 37' 18 W; T7S R7W, NW 1/4sec 21) 226 Comment
  UCR193927  Polypogon monspeliensis A. C. Sanders, Fred M. Roberts 2008-7-16 35842 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UCSB48202  Polypogon viridis Roberts, Fred 1981-6-26 Orange Santa Ana Mts., San Juan Canyon, 0.1 km. N Lower San Juan Picnic Ground 390 Comment
  RSA0035664  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2012-9-23 12 -512 Orange city of Yorba Linda, Santa Ana Canyon, north side of Santa Ana River, La Palma Avenue at Via Del Rio Road 104 Comment
  UCR154273  Populus fremontii subsp. fremontii Mark A. Elvin 2004-5-2 3430 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  JEPS117746  Populus trichocarpa Mark A. Elvin, A. C. Sanders 2005-9-2 4493 Orange Santa Ana Mtns: Mouth of Lion Cyn, just up stream from Lower San Juan Campground. 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
  RSA542592  Porophyllum gracile Fred M. Roberts, T. Sholars 1988-3-29 3883 Orange Santa Ana Mountains: Hot Springs Canyon, 1.3 km north Hwy 74 by road , 0.7 km NW Juan Rancho Survey Marker. 274 Comment
  RSA598970  Porophyllum gracile Scott D. White 1997-3-28 4841 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  SD144030  Porophyllum gracile Scott D. White 1997-3-28 4841 Orange Santa Ana Mountains, above Modjeska Canyon. 424 Comment
  RSA184102  Portulaca oleracea I. L. Wiggins 1965-11-7 20360 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  POM1018  Potamogeton nodosus D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA699853  Prunus ilicifolia J. Vlahos 1934-4-22 s.n. Orange Harding Canyon Comment
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Jun 10 2012
  LA208147  Prunus ilicifolia subsp. lyonii Donald Lee Johnson; 1965-1 208147 Orange San Clemente Island, Reservoir Canyon Comment
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Jan 29 2015
  HSC5707  Pseudognaphalium beneolens J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  RSA747708  Pseudognaphalium californicum Fred M. Roberts 2008-5-16 6986 Orange Dana Point: Dana Point Hradland, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  UCR239639  Pseudognaphalium californicum Fred M. Roberts 2012-4-24 7506 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
  UCR281584  Pseudognaphalium canescens subsp. microcephalum Mitch Provance 2017-6-9 617- 97 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  CHSC108408  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. 31 Comment
  SD187362  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 55 Orange San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. 29 Comment
  UCR269241  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2015-12-9 15- 458 Orange South Coast, Rancho Mission Viejo, east of San Juan Capistrano north of Antonio Parkway and north of Ortega Hwy 74, near Sendero Field Park 55 Comment
  RSA741722  Pseudognaphalium leucocephalum R. E. Riefner 2008-8-5 08 -259 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, lower Fremont Canyon, main drainage. 223 Comment
  UC1922340  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-3-21 07 -157 Orange City of San Juan Capistrano, vicinity of Calle Arroyo/Paseo Esteban at San Juan creek. Comment
  JEPS34056  Pseudognaphalium stramineum Alice King 1908-4-1 Orange Santiago Creek Comment
  RSA751981  Pseudognaphalium stramineum Fred M. Roberts 2008-3-27 6804 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  CAS-BOT-BC357570  Pseudognaphalium stramineum Ira L. Wiggins 1966-3-18 20533 Orange Experimental Garden behind greenhouse, California State College at Fullerton Comment
  IRVC1817  Pseudosasa japonica V. Riley 1967-2-21 Orange Balboa Island. southern coastal Comment
  RSA797373  Pseudotsuga macrocarpa Keith E. Hoffmaster 1931-1-1 52 Orange Santa Ana Mountains Comment
  UCR201597  Pseudotsuga macrocarpa June Latting, F. Shropshire 1972-4-28 s.n. 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 1220 Comment
  UCSB7993  Pseudotsuga macrocarpa McPherson, James 1966-3-19 Orange On Silverado Canyon Road 6.0 miles east of Silverado Fire Station; Santiago Peak; Santa Ana Mountains 1051 Comment
  UCR132512  Psilotum nudum A. C. Sanders, Mark A. Elvin 2003-11-9 27356 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  UCR269240  Psilotum nudum R. E. Riefner Jr. 2015-11-22 15- 453 Orange South Coast, city of Costa Mesa, east side of Orange County Fairground, Lot #A-5, west of Newport Blvd. and north of Fair Drive 32 Comment
  IRVC26429  Ptelea aptera Mark A. Elvin 2004-2-22 3151 Orange UCI Arboretum Southern Coastal 15 Comment
  JEPS57988  Pterostegia drymarioides Alice King 1908-4-18 Orange Santa Ana Mts. Comment
  POM8763  Pterostegia drymarioides P. A. Munz, R. D. Harwood 1920-4-24 3746 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA698490  Pterostegia drymarioides R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA698491  Pterostegia drymarioides Unspecified s.n. Orange Orange County park. Comment
  UC1608000  Pterostegia drymarioides Donald G. Nelson 1935-4-6 207 Orange e. San Juan Capistrano (& just s. of boundary of Cleveland Nat'l Forest in Santa Ana Mts., in canyon branching n. from summer ranger station on main hwy. up San Juan Canyon); Santa Ana Mts. Comment
  CDA7616  Pulicaria paludosa R. G. Ahlefeld 1959-7-15 Orange Santa Ana River Canyon, east of Fullerton. 0 Comment
  UCR95480  Pulicaria paludosa P. H. Raven 1961-10-15 16847 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing 61 Comment
  CAS-BOT-BC86443  Quercus berberidifolia Le Roy Abrams 1901-6-13 1784 Orange Near Laguna, San Joaquin Hills Comment
  IRVC23335  Quercus berberidifolia Fred M. Roberts 1983-3-16 913 Orange Laguna Beach: Sycamore Hills, near El Toro Road, 1.2km NNE jct. El Toro and Laguna Canyon Roads; 5.4km ESE Signal Peak. Southern coastal 112 Comment
  IRVC24544  Quercus berberidifolia Fred M. Roberts, R. L. Allen 1985-8-19 2129 Orange Mission Viejo: lateral to Engilish Canyon along Vista de Lago Drive; 3.4km ENE El Toro Fire Station. Southern Coastal 218 Comment
  RSA0013913  Quercus berberidifolia Fred M. Roberts 2012-5-10 7583 Orange Jan Joaquin Hills; Buck Gully, south fork, norht slope of Pelican Hill, along Pelican Hills Dr., 0.3 km N summit Pelican Hill 189 Comment
  RSA7637  Quercus berberidifolia Carl B. Wolf 1933-11-3 5539 Orange Along main Divide Motorway on west slope of modjeska Peak. 1372 Comment
  RSA87168  Quercus berberidifolia F. W. Peirson 1925-4-10 5738 Orange In Silverado Canyon. 610 Comment
  UCR119801  Quercus berberidifolia R. E. Riefner Jr. 2000-8-8 20- 721 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  UCR228787  Quercus berberidifolia Dick Newell, Don Millar 2011-5-3 142 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  UCSB52412  Quercus berberidifolia Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills: Carbon Canyon, Carbon Canyon Rd., 0.3km by road SW county line; 2.5km NNW Gilman Peak 79 Comment
  RSA0044655  Quercus berberidifolia Leo Miller 1938-3-26 s.n. Orange Near top of Saddleback Mountain. Comment
  RSA734865  Quercus chrysolepis Keith E. Hoffmaster 1931-1-1 407 Orange Santa Ana Mountains Comment
  IRVC24553  Quercus dumosa Fred M. Roberts, Gordon A. Marsh, Karlin G. Marsh 1988-4-26 3952 Orange San Joaquin Hills: Pelican Hill; E slope above Los Trancos Canyon; 0.4km ESE Pelican Hill survey mark; N-facing slope of sandstone ridge. Southern Coastal 200 Comment
  RSA584719  Quercus dumosa Fred M. Roberts, Wade 1989-6-21 4391 Orange San Joaquin Hills; Los Trancos Canyon, 1km E summit of Pelican Hill. 98 Comment
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Oct 16 2013
  UCR224164  Quercus dumosa Fred M. Roberts 2008-9-10 7097 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, north of Marguerita Drive, 0.5 km west northwest Marine Institute, Dana Point Harbor 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
  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
  RSA716771  Quercus wislizeni Fred M. Roberts, Michelle Balk, Robert Allen, Carol Roberts 2004-7-18 6076 Orange Santa Ana Mtns.: Upper Trabuco Cyn. along Trabuco Cyn. Trail, 1.3km NE Los Pinos Pk. and c.a. 0.25km by trail from Main Divide Truck Trail. 1245 Comment
  IRVC1347  Quercus wislizeni var. frutescens Mike Munier 1963-4-27 s.n. Orange O'Neill Park Southern Coastal Comment
  UCR144740  Quercus wislizeni var. frutescens Gordon Marsh, Karlin G. Marsh 1985-9-27 s.n. Orange Santa Ana Mtns., Pine Canyon, 4.1 km NW of Modjeska Peak 805 Comment
  RSA160430  Rafinesquia californica J. D. Olmsted 1959-4-23 471 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  POM293  Ranunculus californicus D. L. Crawford s.n. Orange Near Laguna Beach Comment
  RSA0015962  Ranunculus californicus Fred M. Roberts 2012-4-24 7531 Orange San Joaquin Hills: Buck Gully, above main trail, 2 km W Signal Peak and about 0.4 km S San Joaquin Hills Road. 155 Comment
  RSA625805  Ranunculus californicus Scott D. White 1998-4-24 6344 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd. just N of jct. w/ Valley Vista Wy. Large proposed subdivision called 'Saddleback Meadow.' 305 Comment
  RSA734149  Ranunculus californicus Minor Warne 1934-03 s.n. Orange Laguna Canyon Forks Comment
  HSC92525  Raphanus raphanistrum D. Atwood 1993-3-29 17737 Orange Huntington Beach along Beach Blvd., 0.5 mi. N of the beach Comment
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Jul 14 2012
  IRVC1130  Raphanus raphanistrum L. McCabe 1965-4-17 Orange Laguna Canyon. Laguna Beach Comment
  IRVC1135  Raphanus sativus C. Duncan 1965-4-3 Orange Newport Beach Comment
  IRVC1149  Raphanus sativus C. Duncan 1965-4-4 Orange Newport Beach Comment
  IRVC1161  Raphanus sativus L. Stilgenbauer 1965-4-10 Orange Corona del Mar, 339 Milford Dr.; in canyon. Newport Beach Comment
  UCR186423  Rauvolfia samarensis Robert DeRuff 1996-4-28 492 Orange Southern Coast, Newport Beach, Newport Back Bay, along Backbay Dr., 0.6 mi. north of Big Canyon 2 Comment
  SD175849  Rhamnus alaternus D. G. Kelch 2006-12-9 06 546 Orange Along Newport Back Bay Dr. in side canyon. 6 Comment
  RSA581437  Rhamnus californica subsp. californica Fred M. Roberts, Gordon Marsh 1989-5-21 4355 Orange Santa Ana Mountains: small tributary canyon to Santiago Canyon, Flemming Regional Park, just E of Modjeska, ca. 3.3 km WSW Laurel Springs. 451 Comment
  LA207810  Rhamnus crocea subsp. ilicifolia Carl B. Wolf; 1931-3-6 1845 Orange Santa Ana Mountains, Trabuco Canyon, 0.5 mi. above Trabuco Oaks 457 Comment
  CAS-BOT-BC55960  Rhamnus ilicifolia P. A. Munz; R. D. Harwood 1920-4-24 3765 Orange Santa Ana Canyon, Hillside, Sierra Canyon 365 Comment
  CAS-BOT-BC56038  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1841 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope Santa Ana Mts. 457 Comment
  CHSC37638  Rhamnus ilicifolia T. B. Devine 1981-7-30 735 Orange Santiago Canyon Road, 1/4 mi W of its junction with Williams Canyon Road. 350 Comment
  JEPS42046  Rhamnus ilicifolia John Thomas Howell 1927-7-22 2824 Orange Claymine Canyon Santa Ana Mts. 182 Comment
  RSA5340  Rhamnus ilicifolia B. D. Stark 1933-1-4 4492 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA791876  Rhamnus ilicifolia Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49614 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station Comment
  SBBG52716  Rhamnus ilicifolia C. Davidson 1977-5-18 5620 Orange Bear Springs, Santa Ana Mtns 121 Comment
  POM9123  Rhamnus ilicifolia P. A. Munz, R. D. Harwood 1920-4-24 3765 Orange Sierra [Freemont] Canyon, Santa Ana Mts. 366 Comment
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Sep 17 2011
  LA62813  Rhus integrifolia Carl Epling; Harlan Lewis 1940-4-21 sn Orange hills 6 mi. E of San Juan Capistrano Comment
  SFV16185  Rhus integrifolia R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 36 Orange Newport Beach, west side of Upper Newport Bay adjacent to Santa Ana Delhi channel. About 100 m west of footbridge. Comment
  CAS-BOT-BC167929  Rhus ovata B. Pitzer; S. Hemstreet 1992-5-27 1960 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground 762 Comment
  RSA659984  Rhus ovata Steve Teh 1994-5-20 15 Orange Modjeska Grade rd. 3/4 mile back on fire rd. Comment
  RSA0037200  Rhus ovata Paul Shirokawa 1998-4-28 11 Orange Cleveland National Forest - Trabuco Ranger District, 4.75 miles from Ortega Highway (State Highway 74) on North Main Divide Road, and 0.6 miles along Blue Jay Road. 1066 Comment
  RSA735255  Ribes californicum Pomeroy 1929-2-10 71 Orange Silverado Canyon. Comment
  CAS-BOT-BC93076  Ribes californicum var. hesperium Carl B. Wolf 1931-3-6 1849 Orange 1 mile below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mountains. 609 Comment
  RSA787499  Ribes californicum var. hesperium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49707 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SD152831  Ribes californicum var. hesperium Steve Boyd, Tim Ross 1992-5-20 7460 Orange Southern Santa Ana Mts., San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail, upstream Ao mile to spur trail leading to old mining habitations in side canyon. 305 Comment
  RSA0027776  Ribes californicum var. hesperium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49693 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA0024855  Ribes cereum Minor Warne 1934-2-23 s.n. Orange Santiago Canyon. Comment
  LA205444  Ribes indecorum O. A. Plunkett; 1939-2-18 sn Orange 15 mi. E of Capistrano Comment
  RSA101788  Ribes indecorum R. Weatherby 1950-2-25 1026 Orange Harding Canyon, Santa Ana Mts. 823 Comment
  RSA0021661  Ribes indecorum J. D. Olmsted 1960-2-22 1103 Orange Drainage area to Black Star Canyon. Near CP at Beacon Pines Ranch. 854 Comment
  RSA0021664  Ribes malvaceum Keith E. Hoffmaster 1931-1-18 518 Orange Santa Ana Mts. Comment
  RSA0021666  Ribes malvaceum L. C. Hull 1934-11-2 s.n. Orange Black Star Canyon Rd. Comment
  UCSB52466  Ribes malvaceum var. viridifolium Roberts, Fred; Steele, K. 1982-12-26 Orange South Laguna: Niguel Hill; near end of Sea Island Dr; 1.9km SE Aliso Peak; 1.2km E Bench Mark 133 210 Comment
  SD247657  Ribes malvaceum var. viridifolium R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 46706 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA184097  Ribes speciosum I. L. Wiggins 1966-2-25 20472 Orange Firestone Boy Scout Reservation in hills E. of Brea. Comment
  RSA351  Ribes speciosum J. T. Howell 1928-3-18 888 Orange Aliso Canon [Canyon], Rancho Santa Ana. 229 Comment
  CHSC26237  Ricinus communis E. Bushey 1968-5-15 51 Orange San Juan Canyon Rd. 304 Comment
  RSA797435  Ricinus communis Keith E. Hoffmaster 1935-2-17 s.n. Orange Near Costa Mesa Comment
  RSA716086  Robinia pseudoacacia Fred M. Roberts, Carol A. Roberts 2006-8-18 6399 Orange San Juan Capistrano: San Juan Hills, along I-5, 0.9km by road N Las Ramblas overpass and 3.0km SE Krum Reservoir. 34 Comment
  POM201689  Romneya coulteri L. M. Booth 815 Orange Santa Ana Canyon Comment
  RSA734669  Romneya coulteri A. C. Sanders, T. B. Salvato 2008-5-13 35373 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  SD234972  Romneya coulteri A. C. Sanders, T. B. Salvato 2008-5-13 35373 Orange Peninsular Range, Santa Ana Mountains: Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence (El Toro 7.5' Q) 366 Comment
  SDSU892  Romneya coulteri D. F. Howe 1976-6-4 4904 Orange Trabuca Canyon, Santa Ana Mtns. 305 Comment
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Sep 5 2013
  UC520021  Romneya coulteri Joseph Andorfer Ewan 1932-7-9 7487 Orange 4 mi below Rincon (Santa Ana River); Santa Ana River Comment
  UCR203896  Romneya coulteri R. E. Riefner Jr. 2008-3-20 08- 106 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, west fork Fremont Canyon, south Donaldson Ranch area 380 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
  UCR247896  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
  CAS-BOT-BC74420  Rorippa curvisiliqua Le Roy Abrams 1901-6-1 1768 Orange Laguna. Comment
  CAS-BOT-BC74421  Rorippa curvisiliqua P. A. Munz 1918-5-4 2208 Orange Laguna Lakes. Comment
  CSUSB1432  Rorippa nasturtium-aquaticum Dave Cerf 1971-5-2 S. N. Orange Orange Park Acres. Windes Road. - 1/2 mile from the end of road (southwest). 243 Comment
  SD72247  Rorippa nasturtium-aquaticum R. S. Woglum 1932-4-16 Orange Trabuco Canyon Comment
  RSA550606  Rosa californica Fred M. Roberts 1989-4-26 4324 Orange Lower Blind Canyon near mouth, 9.2 km SW Sierra Peak, 1.0 km N Irvine Lake spillway. 207 Comment
  RSA734658  Rosa californica A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35294 Orange Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir. 277 Comment
  POM2665  Rosa californica I. M. Johnston 1918-9-3 2140 Orange San Joaquin Hills. Laguna Canyon. upper end of the 90 degree curve in the road 76 Comment
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Jun 23 2015
  RSA221063  Rubus ursinus E. W. Lathrop 1966-5-1 6259 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA682754  Rubus ursinus Scott D. White, Amanda Duchardt 2003-3-27 8848 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA699216  Rubus ursinus R. H. McArthur 1934-2-27 s.n. Orange Santa Ana River at 1st Street Comment
  UCR193809  Rubus ursinus A. C. Sanders, Fred M. Roberts 2008-7-16 35833 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, canyon c. 0.12 mi. below Dripping Spring, c. 7.5 mi. ESE of Tustin 360 Comment
  POM306304  Rumex conglomeratus Henry J. Ramsey, Henry J. Ramsey 1938-6-5 1392 Orange Laguna Beach, Irvine Comment
  UCSB50644  Rumex conglomeratus Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills: Carbon Canyon, Carbon Canyon Rd., 0.6km by road SW county line; 2.3km NNW Gilman Peak 250 Comment
  RSA5929  Rumex conglomeratus Carl B. Wolf 1932-7-2 3823 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 213 Comment
  RSA6066  Rumex conglomeratus Carl B. Wolf 1932-6-13 3718 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  SD245454  Rumex conglomeratus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49586 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway. San Juan Creek. Comment
  CLARK-A1528-923  Rumex crispus Patricia A. Andrews 1975-6-26 5912 Orange Capistrano Bay Beach 9 Comment
  SEINET3823332 Image available Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  UC1292604  Rumex crispus C. L. Hitchcock and C. V. Muhlick 1964-3-17 23072 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UCR193609  Rumex crispus A. C. Sanders, Fred M. Roberts 2008-5-6 35237 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  UCR99558  Rumex crispus B. G. Pitzer 1996-4-30 2804 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA5827  Rumex crispus Carl B. Wolf 1932-6-28 3795 Orange Bryant Ranch, north boundary of field. 9 Comment
  RSA4501  Rumex hymenosepalus Carl B. Wolf 1932-3-15 2712 Orange 1 mi. W of Atwood, lower end of Santa Ana Canyon. 76 Comment
  POM12403  Rumex maritimus P. A. Munz 1922-9-2 6346 Orange Lakes in Laguna Canyon. 46 Comment
  RSA466122  Rumex salicifolius Louis C. Wheeler 1932-6-22 840 Orange Newport Bay. 1 Comment
  UCR16515  Rumex salicifolius Steve Kulju 1974-5-27 s.n. Orange Peninsular Range; Santa Ana Mtns, San Juan Canyon, 16 mi SW of Lake Elsinore on State Hwy 74 488 Comment
  JEPS39862  Rumex salicifolius var. salicifolius Lawrence M. Booth 1932-7-4 1245 Orange Newport Bay Comment
  RSA383650  Ruppia maritima V. Newsom 1932-7-4 16946 Orange Laguna - Aliso canyon, Orange County Comment
  HSC24264  Salicornia bigelovii James Henrickson 1970-9-5 5314 Orange 3.5 mi. NW of Huntington Beach, 0.25 mi. SE of Warner Ave. in Lower Littoral zone of Bolsa Chica Salt Marsh along outer Bolsa Bay. 0 Comment
  POM187514  Salicornia bigelovii P. A. Munz 1933-10-30 12997 Orange Seal Beach. Comment
  RSA234499  Salicornia bigelovii James Henrickson 1970-9-5 5314 Orange 3.5 miles NW of Huntington Beach, 0.25 mile SE of Warner Ave. in Lower Littoral zone of Bolsa Chica Salt Marsh along outer Bolsa Bay. 0 Comment
  UCR234135  Salicornia bigelovii Dick Newell 2011-10-2 220 Orange South Coastal Plain, Newport Back Bay, near Big Canyon parking area off Back Bay Dr. 0 Comment
  SBBG72640  Salicornia pacifica M. N. Ackley 1928-9-22 418 Orange Sunset Beach 8 Comment
  UCR112761  Salicornia subterminalis A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23340 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  UCR14054.1  Salicornia subterminalis Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  RSA478898  Salicornia virginica F. R. Fosberg 1930-7-10 S 3983 Orange Anaheim Landing. [Los Angeles Co. on label] 1 Comment
  RSA478904  Salicornia virginica Albert J. Perkins 1917-10-14 s.n. Orange Salt marsh at mouth of Aliso Canyon. Comment
  UC1929632  Salicornia virginica Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1101 Orange Seal Beach National Wildlife Refuge; Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  UC466068  Salicornia virginica D. L. Crawford 739 Orange Laguna Beach Region Comment
  RSA303450  Salicornia virginica J. R. Shevock 1970-10-19 519 Orange Newport Back Bay 5 Comment
  RSA4248  Salix exigua Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River and south of pear orchard, Santa Ana Canyon. 122 Comment
  RSA5307  Salix exigua B. D. Stark 1933-1-7 4510 Orange Rancho Santa Ana, river bottom below ranch houses. 122 Comment
  UCR174214  Salix exigua A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33041 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
  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
  UC536932  Salix exigua var. hindsiana Lawrence M. Booth 1932-6-9 1177 Orange 1 mi from ocean Santa Ana R. Comment
  CAS-BOT-BC108139  Salix gooddingii John Thomas Howell 1927-6-6 2439 Orange Santa Ana River bottom, Santa Ana Canyon [Canon] 152 Comment
  LA208663  Salix gooddingii Carl B. Wolf; 1932-4-8 2950 Orange Santa Ana Canyon, Rancho Santa Ana, near Santa Ana River, at SE corner of pear orchard in Botanic Garden 36 Comment
  POM182034  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  POM2033  Salix gooddingii M. Harbour 1915-4-1 s.n. Orange Olive. Comment
  SBBG58894  Salix gooddingii C. B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  UC492356  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange near Santa Ana R. Rancho Santa Ana (at s.e. corner of pear orchard); Santa Ana Canyon 120 Comment
  UCR102630  Salix gooddingii B. G. Pitzer 1997-4-15 3153 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
  UCR261703  Salix gooddingii Dick Newell, Don Millar 2015-3-31 398 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
  RSA6453  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon, at southeast corner of pear orchard. 120 Comment
  UC506455  Salix laevigata Carl Hedin and Joseph Ewan 1932-7-9 7680 Orange 8 km. below Prado (Rincon) (Santa Ana River); Santa Ana River Comment
  UC537282  Salix laevigata Philip A. Munz and L. M. Booth 1932-12-16 1380 Orange 1/2 mi from ocean Santa Ana R. (w of Wolfe's Ranch) Comment
  POM362640  Salix lasiolepis Marcus E. Jones 1930-2-2 s.n. Orange Near Laguna. Comment
  POM362784  Salix lasiolepis Louis C. Wheeler 1934-1-14 2365 Orange Aliso Creek near Laguna. 76 Comment
  RSA12632  Salix lasiolepis Carl B. Wolf 1934-8-16 6066 Orange Bryant Ranch east of Long Beach. Near N.W. corner section 33. 6 Comment
  RSA357006  Salix lasiolepis Robert F. Thorne 1975-4-6 45569 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA611261  Salix lasiolepis Louis C. Wheeler 1946-9-28 6379 Orange Newport Bay: 1/2 mile north of main coast highway. 2 Comment
  RSA700178  Salix lasiolepis R. H. McArthur 1934-3-1 s.n. Orange Santa Ana River at 1st Street. Comment
  UCR195008  Salix lasiolepis A. C. Sanders, Fred M. Roberts 2008-8-7 35985 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  CAS-BOT-BC128466  Salix lasiolepis var. lasiolepis Ira L. Wiggins 1966-2-4 20417 Orange Along watercourse near mouth of Trabuco Canyon Comment
  RSA725509  Salix lasiolepis var. lasiolepis Fred M. Roberts 2007-9-11 6565 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-BC126309  Salix sessilifolia Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  CDA3181  Salsola australis R. E. Riefner Jr. 2006-11-14 06 -672 Orange City of Irvine, San Diego Creek; vicinity of Campus Avenue at University Drive. Comment
  RSA0095114  Saltugilia australis Clare B. Hardham 1962-4-5 8952 Orange Hills above San Clemente. Comment
  UCR131891  Salvia apiana J. Mallory, V. McCoy 1995-7-3 6454- 67 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  IRVC26432  Salvia californica Mark A. Elvin 2004-2-22 3152 Orange UCI Arboretum Southern Coastal 15 Comment
  UCLA70172  Salvia columbariae W. E. Pequegnat 1937-9-7 101 Orange Santiago Peak; Santa Ana Mts. Comment
  POM21174  Salvia leucophylla Helen D. Geis 1902-05 s.n. Orange Santa Ana Mtns: Santiago Canyon. Comment
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Dec 1 2016
  RSA587882  Salvia leucophylla Fred M. Roberts 1990-5-8 4617 Orange Chino Hills: Soquel Canyon, c. 1.2 km NNW of Gilman Peak. 240 Comment
  RSA0126622  Salvia mellifera Fred M. Roberts 2012-4-24 7502 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  RSA683071  Salvia mellifera Fred M. Roberts 2003-3-13 5593 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1,320m NW Sycamore Gate and 880m W Cristianitos Rd. 179 Comment
  RSA798093  Salvia mellifera Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49594 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA13083  Sambucus mexicana Vernon Fagan 1935-9-4 7566 Orange Rancho Santa Ana, Santa Ana Canyon North of Mexican Houses. 122 Comment
  UC1125355  Sambucus mexicana A. Lewis Mar 1934 335 Orange Santa Ana Canyon Corona Quadrangle Comment
  UC1294017  Sambucus mexicana E. K. Balls 1958-6-27 23289 Orange below tower lookout; Santa Ana Mts., Santiago Peak 1661 Comment
  CAS-BOT-BC238831  Sambucus nigra subsp. caerulea P. C. Everett 1935-6-18 7220 Orange Santa Ana Mts., summit of Santiago Pk. 1731 Comment
  UCD137210  Sambucus nigra subsp. caerulea Ronni Stachelek; Bob Anderson, Frances Schropshire 1995-3-1 41 Orange Newport Beach, West side Upper Newport Bay adjacent to Santa Ana Delhi Channel, ca. 100 m west of footbridge. Comment
  UC537262  Samolus parviflorus Lawrence M. Booth 1932-7-19 1284 Orange Bolsas Marsh Comment
  RSA69001  Samolus parviflorus F. W. Peirson 1924-10-19 s.n. Orange Wintersberg Comment
  RSA0127423  Sanicula arguta Fred M. Roberts 2016-3-17 8018 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  IRVC16673  Sanicula arguta J. B. Anderson 1966-4-11 435 Orange around hill west of Signal Peak. San Joaquin Hills Comment
  SEINET6958514  Sanicula arguta Wanda P. Vestal, A. G. Vestal 1955-3-24 3451 B Orange Trabuca Canyon, about 5 miles east of El Toro. Comment
  RSA751310  Sanicula crassicaulis A. C. Sanders, Fred M. Roberts 2008-5-6 35267 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
  IRVC17131  Sanicula crassicaulis var. crassicaulis A. S. Boughey 1968-4-16 231 Orange Santiago Canyon/Lower Modjeska Cyn, Fleming Property. Santa Ana Mountains Comment
  RSA678731  Sanicula crassicaulis var. crassicaulis Fred M. Roberts, Laura Cohen 2000-3-24 5270 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  RSA97369  Sanicula graveolens F. W. Peirson 1923-5-6 3500 Orange open area at summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  SEINET13945251 Image available Sanicula tuberosa Kay Raeder 1955-1 494 Orange Just above Flying Cow Ranch, San Jose Hills, Alt 1500 ft. 457 Comment
  SD232219  Sarcocornia pacifica Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1101 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Statiion, across access road from Nature Center (Bldg 226). 3 Comment
  UCR175518  Satureja chandleri Mark A. Elvin, A. C. Sanders 2005-9-2 4499 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 Comment
  RSA749467  Saxifraga californica Fred M. Roberts 1999-4-22 5187 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.8 km SE Silverado Sch. and 2.3 km NNW Bolero Lookout. 396 Comment
  RSA734890  Schedonorus arundinaceus 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 blow Modjeska Canyon confluence. 345 Comment
  RSA713566  Schedonorus arundinaceus R. E. Riefner Jr. 2005-10-1 5 -701 Orange City of Costa Mesa, South Coast Dr. at Susan Rd. 16 Comment
  RSA729933  Schefflera actinophylla A. C. Sanders, Mark Elvin 2006-12-22 33275 Orange South Coast: Irvine, UCI campus SW of intersection of Jamboree Blvd. and Campus Dr., just outside entrance to UCI Herbarium 15 Comment
  OBI30170  Schinus molle Shelley Mackay 1971-4-29 98 Orange Carbon Canyon off of Carbon Canyon Rd. 152 Comment
  RSA455  Schinus molle J. T. Howell 1927-6-21 182 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  IRVC19942  Schismus barbatus Gordon A. Marsh, Karlin G. Marsh 1983-5-2 s.n. Orange Burn area between Coal Canyon and Gypsum Canyon. Santa Ana Mountains 421 Comment
  IRVC21660  Schismus barbatus R. L. Allen, Fred M. Roberts, Jr. 1982-7-4 A 672 Orange Chino Hills: Carbon Canyon, Carbon Canyon Rd. (State Hwy 142), 1.1 - 1.5 mi SW of the San Bernardino County line. Santa Ana Mountains Comment
  POM1396  Schoenoplectus californicus I. M. Johnston 1918-9-3 2147 Orange Laguna Canyon (at the lakes) 107 Comment
  RSA234495  Schoenoplectus californicus James Henrickson 1970-9-5 5330 Orange 3 miles NE of Huntinton Beach just N of Bolsa Chica Salt Marsh. Sea level. 0 Comment
  RSA731914  Schoenoplectus californicus Fred M. Roberts, Sandy Leatherman 2007-11-27 6665 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  UCSB56474  Schoenoplectus californicus Thorne, Robert 1975-4-6 Orange San Joaquin Marsh: near Irvine and coast Comment
  RSA5934  Schoenoplectus californicus Carl B. Wolf 1932-7-7 3862 Orange Opposite the Bryant Ranch: on N side of Bryant Avenue, 0.5 mile east of Los Alamitos Boulevard near Los Alamitos. 8 Comment
  POM1398  Schoenoplectus maritimus C. B. Bradshaw s.n. Orange Laguna region: alkali lake. Comment
  POM202160  Schoenoplectus maritimus L. M. Booth 1932-5-30 1133 Orange Bog on south side of Newport Lagoon. Comment
  POM47587  Schoenoplectus maritimus I. M. Johnston 1924-8-29 s.n. Orange 4 miles N of Balboa. Comment
  IRVC29874  Scirpus cernuus Mark A. Elvin, D. Kelch 2006-12-9 5302 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  SD212402  Scirpus microcarpus Andrew C. Sanders, Fred M. Roberts, et al 2006-7-20 33022 Orange Santa Ana Mountains; San Juan Canyon from Lower San Juan Picnic Area to circa 1 mile downstream, parallel to Highway 74 and near Riverside County line 366 Comment
  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
  UCSB47591  Scrophularia californica Roberts, Fred 1980-4-5 Orange Highway 74, San Juan Canyon, 0.4km sw Lower San Juan Picnic Ground, Santa Ana Mountains, 390 Comment
  JEPS62864  Scutellaria tuberosa Mary Alice King 1908-4-19 Orange Santa Ana Mountains Comment
  SBBG27191  Selaginella bigelovii J. T. Howell 1927-7-22 2834 Orange Claymine Cyn 182 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
  SEINET10470958  Selaginella bigelovii John Thomas Howell 1927-7-22 Howell 2834 Orange Claymine Canyon, Santa Ana Mts., On hot and exposed opens between shrubs on very steep hillsides and in the cracks and crevices of sandstone outcrops, Upper Sonoran Zone. 185 Comment
  RSA0012667  Senecio californicus R. E. Riefner Jr. 2000-6-26 20 -583 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N from Baker Canyon Road. 305 Comment
  RSA17008  Senecio californicus P. C. Everett 1936-3-19 7733 Orange Santa Ana Botanic Garden. 183 Comment
  RSA472903  Senecio californicus M. B. Dunkle 1935-3-3 4352 Orange San Juan Canyon. 457 Comment
  RSA763058  Senecio flaccidus var. douglasii E. W. Lathrop 1973-6-27 7429 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UC1928639  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Coastal plain: Irvine. UC Irvine Campus. Directly west of T-intersection of Shady Canyon Cr. w/Bonita Canyon Dr. (= Culver Dr.). Comment
  UCD64189  Senecio linearifolius var. linearifolius Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Crown Valley Parkway-Pacific Island Drive. 70 Comment
  UCR192452  Senecio vulgaris A. C. Sanders, Fred M. Roberts 2008-3-25 34578 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UCSB48233  Setaria F. M. Roberts, Jr. 1981-5-2 242 Orange collected 1.5 km N, along Camino Capistrano, in Mision Viejo Crown Valley Parkway - Mision Viejo, Camino Capistrano and Crown Valley Parkway 49 Comment
  CAS-BOT-BC243590  Setaria parviflora Ira L. Wiggins 1965-9-26 20260 Orange Roadside at west end of Orangethorpe Estates subdivision near Atwood. Comment
  CDA2432  Setaria parviflora T. C. Fuller 1961-10-18 7174 Orange 2 miles east of Atwood. 0 Comment
  POM201786  Setaria parviflora L. M. Booth 809 Orange Black soil, edge of Field Orange Comment
  POM50701  Setaria parviflora H. Droege 1902-05 s.n. Orange Santa Ana Orange County Comment
  CAS-BOT-BC240183  Setaria verticillata Ira L. Wiggins 1965-11-7 20361 Orange Vacant lot on west side of State College Blvd., near Troy High School, Fullerton Comment
  RSA0028739  Setaria verticilliformis R. E. Riefner Jr. 2004-12-12 4 -554 Orange City of Irvine, near Irvine Valley College, strawberry fields along Jeffrey Road near Irvine Center Drive. 37 Comment
  UCR191009  Sidalcea malviflora A. C. Sanders, Fred M. Roberts 2008-4-22 35018 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA329668  Sidalcea malviflora Gary D. Wallace 1966-4-16 480 Orange Along Hwy 101 about 10 miles north of Camp Pendleton. Comment
  RSA432756  Sidalcea malviflora Christopher Davidson 1977-5-18 5635 Orange Cleveland National Forest, Falcon campground. 1006 Comment
  CAS-BOT-BC205738  Sidalcea neomexicana subsp. thurberi P. C. Everett 1935-4-27 6691 Orange Bryant Ranch. NW. Cor. Bryant Ave. & Hansen Rd. 30 Comment
  CAS-BOT-BC205740  Sidalcea neomexicana subsp. thurberi Carl B. Wolf 1936-4-22 7770 Orange East of Los Alamitos, at Northwest corner of Hansen Road & Bryant Ave. 15 Comment
  POM2912  Sidalcea neomexicana subsp. thurberi L. R. Abrams 1903-4-17 32257 Orange Between Tustin and Myford Comment
  CAS-BOT-BC434368  Sidotheca trilobata P. C. Everett 1935-6-19 7224 Orange Santa Ana Mts., main divide motorway 1 5/10 mi. below summit of Santiago Peak, E. slope 1310 Comment
  RSA734348  Silene antirrhina A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34641 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 396 Comment
  RSA627534  Silene antirrhina Sandy Leatherman, Fred M. Roberts, B. Leatherman, Trish Smith 1998-5-23 14 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. 335 Comment
  JEPS50934  Silene gallica Alice King March 1908 Orange Santa Ana Comment
  RSA477883  Silene gallica M. B. Dunkle 1933-4-9 3272 Orange Dana Point. Comment
  RSA732119  Silene gallica A. C. Sanders, Fred M. Roberts 2008-4-8 34730 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  CAS-BOT-BC174886  Silene laciniata John Thomas Howell 1927-6-26 2598 Orange Claymine [Canon] Canyon , n. Santa Ana Mts. 304 Comment
  UCR193496  Silene laciniata A. C. Sanders, T. B. Salvato 2008-5-13 35361 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA553117  Silene laciniata subsp. major Fred M. Roberts, Carol A. Roberts 1989-5-11 4349 Orange Santa Ana Mountains: Upper Blind canyon, east fork, along power line maintainance road, 3.9km SE Walnut Reservoir. 381 Comment
  RSA659992  Silene laciniata subsp. major Steve Teh 1994-5-20 27 Orange Modjeska Grade rd. 1/2 mile on trail above fire road. Comment
  RSA0061172  Silene multinervia Robt. Allen, Trish Smith, Mike Kahle 2006-6-21 s.n. Orange Santa Ana Mountains region: Upper Fremont Canyon, ridge along SE, along unpaved Lakeview Road. 638 Comment
  RSA788902  Sinapis arvensis Fred M. Roberts 2008-6-12 7042 Orange Lomas de Santiago: Loma Ridge, ridge north of Shoestring Road above Santiago Cyn. Rd. Irvine Ranch Land Conservancy. 321 Comment
  CAS-BOT-BC75038  Sisymbrium altissimum John Thomas Howell 1927-7-24 2821 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  RSA0029937  Sisymbrium altissimum Fred M. Roberts 2013-5-15 7773 Orange San Joaquin Hills: Buck Gully, north slope, along south side of San Joaquin Hills Drive, 1.6 km NNW summit Pelican Hill. 174 Comment
  IRVC1181  Sisymbrium irio B. Mawdsley 1965-4-5 Orange between Laguna Beach and San Clemente. Pacific Coast Hwy 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
  UCR237826  Sisymbrium irio Mark A. Elvin 2003-2-2 2267 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 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
  RSA7579  Sisyrinchium bellum E. R. Johnson 1933-11 2031 Orange Rancho Santa Ana. Comment
  UCR16603  Sisyrinchium bellum Nancy Robb 1966-4-15 s.n. Orange 3 miles SE of Yorba Linda, 1 mi south of Santa Ana Canyon Road 122 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
  POM9050  Sisyrinchium bellum Philip A. Munz, R. D. Harwood 1920-4-24 2751 Orange Sierra [Freemont] Canyon, Santa Ana Mountains. 366 Comment
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Sep 17 2011
  SD220085  Solanum americanum Mark A. Elvin 2004-5-2 3415 Orange Irvine: San Joaquin Freshwater Marsh near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  CDA41598  Solanum douglasii P. Akers 2006-3-25 7 06 a Orange Yorba Linda. Santa Ana River, S. of La Palma Dr., 0.6-0.9 mi. E of Yorba Linda Dr. 121 Comment
  RSA747697  Solanum douglasii Fred M. Roberts 2008-4-16 6915 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 71 Comment
  UC494729  Solanum douglasii Philip A. Munz 1932-3-29 12190 Orange Costa Mesa Comment
  UCR173402  Solanum douglasii Abby Sirulnik 2000-4-11 61 Orange South Coast, Crystal Cove State Park, near Los Trancos Canyon and Pelican Hill 152 Comment
  UCR207564  Solanum douglasii 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
  UCR237843  Solanum douglasii Mark A. Elvin 2003-2-2 2272 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCSB41752  Solanum douglasii Rowlands, Peter 1970-3-6 Orange Trabuco Cyn.; approx 2 mi up cyn from O'Neil Park 396 Comment
  POM201712  Solanum physalifolium var. nitidibaccatum L. M. Booth 1932-7-30 1344 Orange Santa Ana River Comment
  UCR139445  Solanum rostratum E. R. Johnson 1946-8-22 11531 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden 122 Comment
  RSA38195  Solanum rostratum Ed Johnson 1946-8-22 11531 Orange sandy river bottom, Rancho Santa Ana, Santa Ana River Canyon 122 Comment
  CAS-BOT-BC156710  Solanum umbelliferum C. B. Wolf 1931-3-6 1862 Orange 1 mi. no. of base of Modjeska Grade, west slope of Santa Ana Mts. 304 Comment
  POM212279  Solanum umbelliferum Carl B. Wolf 1931-3-6 1850 Orange 0.5 mi. below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 610 Comment
  RSA427454  Solanum umbelliferum M. B. Dunkle 1933-5-30 3576 Orange Santa Ana Canyon Comment
  RSA5320  Solanum umbelliferum B. D. Stark 1932-12-30 4475 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA598959  Solanum umbelliferum Scott D. White 1997-3-28 4831 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  UC484245  Solanum umbelliferum C. B. Wolf 1931-3-6 1862 Orange 1 mi n of base of Modjeska Grade (w slope of Santa Ana Mountains); Santa Ana Mountains, Modjeska Grade 304 Comment
  UCR4097  Solanum xanti Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, 150 yards toward beach on Salt Creek Road off Pacific Coast Hwy between South Laguna and Dana Point 12 Comment
  SD247738  Solanum xanti R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49696 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  SEINET12274872  Solanum xanti J. F. Bright, Wyman, C. 1933-1 8094 Orange in Santa Ana foothills 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
  POM50555  Solidago californica L. R. Abrams 1901-6-16 1851 Orange Trabuco Canyon Comment
  RSA752812  Solidago californica A. C. Sanders, Fred M. Roberts 2008-8-7 35998 Orange middle section of Weir Canyon, 1.15 mi. (air) SSE of Walnut Canyon Reservoir 225 Comment
  UCR119311  Solidago californica R. E. Riefner Jr. 2000-8-8 20- 723 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  UCR193846  Solidago californica A. C. Sanders, Fred M. Roberts 2008-7-16 35853 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  IRVC923  Sonchus oleraceus B. Mawdsley 1965-3-30 Orange east bluff at Mar Vista. Newport Beach Comment
  JEPS88920  Sonchus oleraceus Rimo Bacigalupi, and L. Heckard, P. C. Hutchison 1962-3-16 8231 Orange 2 mi n Doheny Beach State Park (along U.S. 101) Comment
  CAS-BOT-BC235342  Sorghum halepense Carl B. Wolf 1932-6-13 3724 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  CDA26023  Sorghum halepense Mark A. Elvin 2007-6-16 s.n. Orange Southern Coastal; Irvine; San Diego Creek at Campus Drive, on bank in channel. Comment
  IRVC15380  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  IRVC15381  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  SD109539  Spartina foliosa C. Davidson 1970-7-27 1505 Orange Bolsa Chica Salt Marsh, 1 mile south of Warner Ave., opposite Seal beach Comment
  UCR240099  Spartina foliosa Dick Newell 2012-9-29 297 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 2 Comment
  RSA652717  Spartium junceum Jack D. Ingwersen 1962-5-2 s.n. Orange Anaheim Comment
  RSA658212  Spartium junceum T. A. Daubert 1991-5-19 647 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  CLARK-A1528-2474  Spergula arvensis John C. Roos 1937-2-23 1317 Orange Laguna Hills Comment
  UCR107849  Spergula arvensis Scott D. White, B. Leatherman 1998-1-26 6065 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  RSA696548  Spergula arvensis Minor Warne 1934-03 s.n. Orange Laguna Canyon Forks Comment
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Jun 24 2009
  SD227786  Spergularia bocconi Scott D. White, Brian Leatherman 1997-6-12 5339 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15/ Hwy 74 jtn. 45 Comment
  IRVC20156  Spergularia bocconii R. L. Allen 1978-4-1 Orange 60m NE Golden Lantern [and Acapulco Rds.] jct. Dana Point Comment
  RSA0097842  Spergularia macrotheca L. R. Abrams 1903-4-17 3258 Orange Between Tustin and Myford. Comment
  RSA478043  Spergularia macrotheca Anstruther Davidson 1910-4-20 2472 Orange Corona Del Mar Comment
  UC537160  Spergularia macrotheca Lawrence M. Booth 1932-5-19 1062 Orange Newport Bay Comment
  RSA0013956  Spergularia macrotheca var. macrotheca Fred M. Roberts 2008-5-7 6943 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
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Feb 27 2019
  CAS-BOT-BC390858  Spergularia marina Munz; Street; Williams 1919-5-4 2682 Orange Laguna Canon [Canyon] 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
  PASA1277  Spergularia tenuis Joseph Andorfer Ewan 1931-7-31 Orange Smeltzer Comment
  RSA733957  Sphaeralcea fasciculata Keith E. Hoffmaster 1927-5-15 458 Orange Lemon Heights. Comment
  RSA769613  Stachys E. W. Lathrop 1974-6-27 7410 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  CAS-BOT-BC248292  Stachys ajugoides A. C. Sanders; Fred M. Roberts 2008-6-17 35488 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  POM202025  Stachys ajugoides L. M. Booth 1932-6-4 1146 Orange Newport Lagoon. Comment
  RSA627751  Stachys ajugoides Scott D. White 1998-3-18 6214 Orange UCI Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Berkley Ave. and new Freeway (Bonita Cyn.). Plains dissected by a series of gullies. 37 Comment
  RSA680  Stachys ajugoides J. T. Howell 1927-6-30 246 Orange Bryant Ranch near Long Beach. 15 Comment
  JEPS62961  Stachys ajugoides L. M. Booth 1932-5-19 Orange Newport Bay Comment
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Oct 19 2017
  RSA780827  Stachys ajugoides var. rigida Sandy Leatherman 2011-5-16 2011 -16 Orange Peninsular Ranges; Chino-Puente Hills region: 50 meters west of Carbon Canyon Road and Lions Canyon Road in Carbon Canyon in the City of Brea. 273 Comment
  RSA542483  Stachys rigida subsp. quercetorum Fred M. Roberts, R. E. Riefner 1988-7-19 4115 Orange Santa Ana Mountains; Maple Springs Truck Trail, Upper Silverado Canyon, 1.9km N Modjeska Peak. 1128 Comment
  SEINET9332031  Stachys rigida var. quercetorum Unknown 2004-5-4 007 Orange Crystal Cove State Park Comment
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Oct 26 2017
  HSC77817  Stebbinsoseris heterocarpa K. L. Chambers 1954-4-24 482 Orange Hwy. 18-91, Santa Ana Canyon, 7 mi. E of Olive (hence 11 mi. E of junction with Hwy. 101 in Anaheim) Comment
  IRVC9287  Stellaria media B. Gittins 1963-3-29 108 Orange corner of Dorothy Lane and State College Blvd. Fullerton Comment
  RSA627784  Stellaria media Scott D. White 1998-4-9 6266 Orange University of Calif. Irvine Campus; Drainage channel west of Medical Center, west of main campus circle. 15 Comment
  RSA685923  Stellaria media Fred M. Roberts 2003-3-27 5631 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
  JEPS51104  Stellaria media Alice King Apr 1908 Orange Santa Ana River Comment
  POM172035  Stenotaphrum secundatum F. M. Reed 1929-12-19 6711 Orange Arch Beach, Laguna Comment
  RSA749688  Stephanomeria A. C. Sanders, Fred M. Roberts 2008-7-16 35827 Orange Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  UCR186593  Stephanomeria diegensis Robert DeRuff 1994-1 462 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, Newporter Canyon 8 Comment
  SBBG42893  Stephanomeria diegensis L. D. Gottlieb 1968-8-14 6860 Orange St Hwy 74, immediately W of lower San Juan Cmpgrd 411 Comment
  POM202180  Stephanomeria exigua subsp. coronaria L. M. Booth 1932-6-17 1205 Orange Bolsas Marsh, near highway Comment
  RSA743387  Stephanomeria exigua subsp. exigua Fred M. Roberts 2008-7-10 7065 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCR37802  Stipa lepida Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  UCR98243  Stipa lepida Scott D. White 1997-3-28 4839 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  POM12440  Stuckenia pectinata Philip A. Munz 1922-9-2 6348 Orange Ponds in Laguna Canyon 46 Comment
  IRVC24746  Stylocline gnaphalioides Fred M. Roberts 1986-4-29 2820 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  RSA0011014  Stylocline gnaphaloides Fred M. Roberts 2012-5-10 7570 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  RSA588794  Stylocline gnaphaloides Fred M. Roberts, D. Bontrager 1990-4-18 4566 Orange Rancho Mission Viejo: ridge between Christianitos and Gabino Canyons (Riverside Cement Lease Holdong), 5.5 km SE Playa Survey Marker. 152 Comment
  RSA678496  Stylocline gnaphaloides Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5846 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  UCR223962  Stylocline gnaphaloides Fred M. Roberts 2008-4-9 6856 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  UCR238205  Stylocline gnaphaloides Mark A. Elvin 2003-3-30 2391 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 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
  UCR112939  Styrax officinalis var. redivivus R. E. Riefner Jr. 2000-3-26 20- 148 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Fremont Canyon, north of major stream fork along west channel drainage 335 Comment
  CAS-BOT-BC48096  Styrax redivivus C. B. Wolf; B. D. Stark 1932-12-19 10014 Orange Main divide of Santa Ana Mts., between Sierra Peak & Skyline Drive. 914 Comment
  POM256723  Styrax redivivus W. Pequegnat 1940-6-14 s.n. Orange Yaeger's Meadow. Santa Ana Mountains 915 Comment
  RSA763837  Styrax redivivus Doris Bowers 1971-4-19 1695 Orange Santa Ana Mts. 762 Comment
  POM48697  Suaeda calceoliformis I. M. Johnston 1924-8-29 s.n. Orange 4 miles north of Balboa 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
  CAS-BOT-BC110386  Suaeda esteroa Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM259484  Suaeda esteroa A. C. Keller 1938-7-25 s.n. Orange 1/4 mile west of Corona del Mar on Channel Beach Comment
  RSA70016  Suaeda esteroa F. W. Peirson 1924-8-29 5082 Orange 2.5 miles from Balboa on road inland along creek. Comment
  RSA758773  Suaeda esteroa Anstruther Davidson 1931 Orange Newport Comment
  UCR108425  Suaeda esteroa L. C. Wheeler 1946-9-28 6385 Orange Newport Bay, Newport Bay 5 Comment
  UCSB36527  Suaeda esteroa Ferren, Wayne; Whitmore, S. 1980-8-27 Orange Newport Backbay, along Backbay Drive; ca. 1.5 km. NE of Rt. 1, Newport Beach Comment
  CAS-BOT-BC110407  Suaeda taxifolia Allan C. Keller s.n. Orange One mile south of Huntington Beach on U.S. Highway Alternate 101. 1 Comment
  POM694  Suaeda taxifolia D. L. Crawford s.n. Orange Laguna Beach bluffs Comment
  RSA703389  Suaeda taxifolia R. E. Riefner Jr. 2004-5-6 4 -171 Orange Newport Beach, north side of Pacific Coast Hwy., west of Bayside Drive near Newport Dunes Beach Club. 10 Comment
  SD38037  Suaeda taxifolia F. Detmers 1932-3-23 2624 Orange South of Huntington Beach Comment
  SDSU5605  Suaeda taxifolia Thomas A. Zink 1971-4-1 Orange In Newport Back Bay about 1 mile west of Jamboree Rd. 3 Comment
  UC1007088  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange Santa Ana River Bridge w Newport Beach (on U.S. Highway 101 Alternate); , Santa Ana River Comment
  UC971738  Suaeda taxifolia L. M. Booth 1932-6-29 1232 Orange Newport Bay Comment
  RSA573298  Symphoricarpos albus var. laevigatus Steve Boyd, Timothy S. Ross 1994-9-14 8355 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
  LA204603  Symphoricarpos mollis W. E. Pequegnat; 1937-8-19 37 Orange Santa Ana Mountains, Trabuco Peak Comment
  POM4401  Symphoricarpos mollis P. A. Munz 1918-5-4 2173 Orange Laguna Beach Comment
  UCR3182  Symphoricarpos mollis Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  JEPS31960  Symphyotrichum subulatum J. Thomas Howell 1927-9-24 3116 Orange Rancho Santa Ana Santa Ana River (bottom) 152 Comment
  UC729508  Symphyotrichum subulatum Carl B. Wolf 1932-9-16 4114 Orange 500 ft e of San Gabriel River (bordering Los Alamitos Bay); , Los Alamitos Bay 1 Comment
  IRVC26731  Synnotia villosa Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3165 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR193816  Tamarix ramosissima A. C. Sanders, Fred M. Roberts 2008-7-16 35877 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UC1618074  Tauschia arguta Donald G. Nelson 1935-7-6 242 Orange San Juan Canyon; near stream Comment
  RSA699304  Tecoma capensis M. Funakoshi 1941-11-27 s.n. Orange Santa Ana. Comment
  UCR158465  Tetragonia tetragonoides Adrian Wolf 1998-5-27 237 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  CAS-BOT-BC438221  Tetragonia tetragonoides Louis C. Wheeler 1934-1-14 2354 Orange Laguna Beach 1 Comment
  RSA599186  Thalictrum fendleri Scott D. White 1997-3-28 4829 Orange Above Modjeska Canyon, proposed water tank site. 425 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
  UCR193319  Thalictrum fendleri var. polycarpum A. C. Sanders, T. B. Salvato 2008-5-13 35387 B 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
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