33.82083 33.92083 -117.80306 -117.70306 UC/JEPS: Consortium Search Results
Search Results — 2016 specimen records retrieved (2016 records with coordinates)
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 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
  HSC79051  Acalypha californica Steve Boyd, L. F. LaPre 1981-5-27 Orange N end of the Santa Ana Mtns., along powerline road on ridges E of Weir Canyon and at the head of Gypsum Canyon Comment
  IRVC9186  Acalypha californica C. A. Taylor 1966-5-18 66 -118 Orange Santa Ana Canyon, Old Rancho Santa Ana Botanic Garden site; full sun on flats and slopes. Chino Hills Comment
  RSA337340  Acalypha californica Steve Boyd, L. LaPre 1981-5-27 s.n. Orange N end of the Santa Ana Mountains along power line road on ridges E of Weir Canyon and the head of Gypsum Canyon. Comment
  RSA771  Achillea millefolium var. californica John T. Howell 1927-6-24 208 San Bernardino Aliso Canyon, Rancho Santa Ana. 366 Comment
  CAS-BOT-BC211945  Achnatherum coronatum John Thomas Howell 1927-6-2 2413 Orange Southern Puente Hills in the Santa Ana Canyon 152 Comment
  RSA71  Achnatherum coronatum J. T. Howell 1927-6-2 14 Orange Sandstone Ridge, Botany Garden, RSA. 152 Comment
  RSA734601  Achnatherum coronatum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35310 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA735025  Achyrachaena mollis Scott D. White, Justin M. Wood 2008-4-9 11845 San Bernardino Chino Hills: Chino Hills State Park, in and adjacent to the northern park boundary. To the west and southwest of the main park entrance. 366 Comment
  UCR199678  Achyrachaena mollis Scott D. White, Justin M. Wood 2008-4-9 11845 San Bernardino Chino Hills, Chino Hills State Park, in and adjacent to the northern park boundary, to the west and southwest of the main park entrance 512 Comment
  UCD170824  Acmispon micranthus A. C. Sanders; Fred M. Roberts 2008-3-25 34520 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  CAS-BOT-BC29186  Acourtia microcephala J. T. Howell 1927-6-22 2571 Orange Hills on north side of Santa Ana Canyon 152 Comment
  RSA751287  Acourtia microcephala A. C. Sanders, Fred M. Roberts 2008-7-3 35674 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UCR193785  Acourtia microcephala A. C. Sanders, Fred M. Roberts 2008-7-3 35674 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCSB71570  Acourtia microcephala Sanders, A.; Roberts, Fred 2008-7-3 Orange Peninsular Range; Santa Ana Mtns.; Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor (Black Star Canyon 7.5' Q.) 415 Comment
  CAS-BOT-BC133135  Adenostoma fasciculatum John Thomas Howell 1927-7-29 2873 Orange On N. side of Santa Ana [Canon] Canyon 243 Comment
  RSA750003  Adenostoma fasciculatum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35319 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  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
  UCR194558  Adenostoma fasciculatum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35319 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA357  Adenostoma fasciculatum var. fasciculatum J. T. Howell 1928-4-15 919 Orange East boundary of the Rancho Santa Ana 229 Comment
  RSA358  Adenostoma fasciculatum var. fasciculatum J. T. Howell 1927-7-29 515 Orange Near east boundary of Rancho Santa Ana. 152 Comment
  RSA5280  Adenostoma fasciculatum var. fasciculatum B. D. Stark 1932-12-15 1700 Orange Rancho Santa Ana 145 Comment
  RSA553109  Adenostoma fasciculatum var. fasciculatum Fred M. Roberts 1989-5-9 4341 Orange Gypsum Canyon, west for, 5.6 km WNW Sierra Peak, 1km S Hwy 91. 146 Comment
  RSA2  Adiantum jordanii J. T. Howell 1927-6-17 158 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SEINET241816  Agrostis gigantea J. T. Howell 68 Orange CULTIVATED; Botany Garden, Rancho Santa Ana. 152 Comment
  UCR193762  Agrostis viridis A. C. Sanders, Fred M. Roberts 2008-7-3 35703 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  A347629  Ailanthus altissima E. R. Johnson 1932-05-01 - 1932-06-01 3704 Unknown Rancho Santa Ana, Santa Ana Canyon, Aliso Canyon 182 Comment
  CAS-BOT-BC64519  Ailanthus altissima E. R. Johnson 1932-5-1 3704 Orange Rancho Santa Ana, Santa Ana Canyon. Aliso Canyon. 182 Comment
  RSA0013973  Allium haematochiton Fred M. Roberts, David E. Bramlet 2008-5-13 6952 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  CAS-BOT-BC474098  Allium praecox Munz; L. Street; Williams 1919-5-3 2635 Orange Santa Ana River Canyon Comment
  POM6476  Allium praecox Philip A. Munz, L. T. Street, Williams 1919-5-3 2635 Orange Santa Ana River Canyon. Comment
  RSA264153  Allium praecox C. W. Tilforth 1977-3-6 1257 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  UCR129780  Allium praecox P. A. Munz, L. T. Street, G. Williams 1919-5-3 2635 Orange Santa Ana River Canyon 122 Comment
  UCR192119  Allium praecox A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35305 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  A401395  Alnus rhombifolia E. W. Stark 1943-10-01 - 1943-11-01 Unknown Santa Ana River Canyon 990 Comment
  RSA144  Alnus rhombifolia J. T. Howell 1927-7-21 452 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA5391  Alnus rhombifolia B. D. Stark 1932-12-30 1717 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  UCR207561  Amaranthus palmeri O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  RSA274  Amaranthus powellii J. T. Howell 1927-7-27 502 Orange Near ranch, Rancho Santa Ana 152 Comment
  CAS-BOT-BC13606  Ambrosia acanthicarpa Ira L. Wiggins 1965-11-6 20351 Orange Near Well No. 14, Kraemer Oil Estates, near end of road leading to Rancho Santa Ana. Comment
  CAS-BOT-BC13608  Ambrosia acanthicarpa John Thomas Howell 1927-10-22 3164 Orange In Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA12823  Ambrosia acanthicarpa E. R. Johnson 1934-12-5 6256 Orange Rancho Santa Ana, Santa Ana Canyon. 137 Comment
  RSA184184  Ambrosia acanthicarpa I. L. Wiggins 1965-11-6 20351 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA854  Ambrosia acanthicarpa J. T. Howell 1927-10-22 762 Orange Near Eastern Boundary, Rancho Santa Ana. 152 Comment
  UCR239933  Ambrosia acanthicarpa O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  RSA264443  Ambrosia chenopodiifolia C. W. Tilforth 1976-10-21 1229 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana. Comment
  CAS-BOT-BC45061  Ambrosia psilostachya Ira L. Wiggins 1965-11-6 20346 Orange Roadside near well no. 14, Kraemer Oil Estates, near end of county road leading to Rancho Santa Ana. Comment
  CAS-BOT-BC45064  Ambrosia psilostachya John Thomas Howell 1927-9-24 3121 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  CHSC35783  Ambrosia psilostachya James Henrickson 1972-10-21 8056 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy along La Palma Ave., just N of Santa Ana River. 60 Comment
  JEPS41025  Ambrosia psilostachya W. L. Jepson 1940-10-6 20179 Orange Horseshoe Bend; Santa Ana River Canon Comment
  JEPS41035  Ambrosia psilostachya J. Thomas Howell 1927-9-24 3121 Orange at, Santa Ana River bottom Rancho Santa Ana; Santa Ana River 152 Comment
  RSA751896  Ambrosia psilostachya Justin M. Wood, J. D. England 2009-7-27 1225 San Bernardino Chino Hills State Park, northridge trail and vicinity. 488 Comment
  RSA769  Ambrosia psilostachya J. T. Howell 1927-10-29 773 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA770  Ambrosia psilostachya J. T. Howell 1927-9-24 754 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  CAS-BOT-BC142550  Amelanchier utahensis P. Parnay 1911-6-1 s.n. Los Angeles Santa Ana Canyon 2286 Comment
  UCR267219  Ammannia coccinea Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7083 Orange Santa Ana River Canyon, YORBA LINDA: Santa Ana River, 0.7 km W Gypsum Canyon bridge, south of La Palma Ave. 107 Comment
  UCR193782  Amorpha californica A. C. Sanders, Fred M. Roberts 2008-7-3 35680 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA485153  Amorpha californica var. californica E. R. Johnson 1929-10-1 636 Orange Rancho Santa Ana. Comment
  CAS-BOT-BC177254  Amorpha fruticosa B. D. Stark 1931-10-17 2463 Orange Santa Ana River bottom, Rancho Santa Ana, Santa Ana Canyon 137 Comment
  CAS-BOT-BC177255  Amorpha fruticosa B. D. Stark 1931-10-17 2463 Orange Rancho Santa Ana, Santa Ana Canyon 137 Comment
  JEPS35488  Amorpha fruticosa John Thomas Howell 1927-6-6 2449 Orange Rancho Santa Ana Santa Ana Canyon, Santa Ana River bottom 152 Comment
  RSA3304  Amorpha fruticosa B. D. Stark 1931-10-17 1332 Orange Rancho Santa Ana, Santa Ana Canyon. 137 Comment
  RSA378  Amorpha fruticosa J. T. Howell 1927-6-6 49 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UC527692  Amorpha fruticosa B. D. Stark 1931-10-17 2463 Orange Santa Ana Canyon Rancho Santa Ana 137 Comment
  RSA620  Amsinckia intermedia J. T. Howell 1928-2-25 833 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  UC1061778  Amsinckia intermedia A. Lewis Mar 1934 349 Orange San Juan Hills; Corona Quad., San Juan Hills 396 Comment
  UCR192461  Amsinckia intermedia A. C. Sanders, Fred M. Roberts 2008-3-25 34529 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA572  Anagallis arvensis J. T. Howell 1927-7-27 s.n. Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  UCR192464  Anagallis arvensis A. C. Sanders, Fred M. Roberts 2008-3-25 34532 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA768  Anthemis cotula J. T. Howell 1927-7-18 425 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  POM6365  Antirrhinum coulterianum Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2623 Orange Santa Ana River Canyon. Comment
  RSA697  Antirrhinum coulterianum J. T. Howell 1927-6-5 34 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA749473  Antirrhinum kelloggii Fred M. Roberts, Linda Farley 2008-3-28 6828 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  UCR209383  Antirrhinum kelloggii Fred M. Roberts, Linda Farley 2008-3-28 6828 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
  RSA734655  Antirrhinum nuttallianum A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35315 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  UCR192112  Antirrhinum nuttallianum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35315 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA518  Apiastrum angustifolium J. T. Howell 1927-6-17 150 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA752610  Apium graveolens Justin M. Wood, Joy England 2009-7-27 1204 San Bernardino Chino Hills State Park. McDermont Spring. 351 Comment
  IRVC22985  Araujia sericifera Karlin G. Marsh 1986-9-12 Orange Yorba Linda; Santa Ana Canyon, Santa Ana River, north side, Featherly Park south of Esperanza Rd. Santa Ana Mountains 105 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
  UCR7861  Araujia sericifera O. F. Clarke 1968-8-24 s.n. Orange c. 2 mi. east of Yorba Linda turnoff on Santa Ana Canyon Road 101 Comment
  POM367266  Arctostaphylos glandulosa subsp. glandulosa E. Crow 1929-2-22 165 Orange Gypsum Canyon, near corona, Santa Ana Mts. Comment
  RSA0013974  Aristida adscensionis Fred M. Roberts, David E. Bramlet 2008-5-13 6953 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  RSA38  Aristida adscensionis var. modesta J. T. Howell 1928-2-26 856 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA39  Aristida adscensionis var. modesta J. T. Howell 1928-2-7 817 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA776  Artemisia biennis J. T. Howell 1927-10-29 784 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA5382  Artemisia californica B. D. Stark 1932-12-30 s.n. Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  UCR131888  Artemisia californica J. Mallory, V. McCoy 1995-6-30 6454- 63 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. Comment
  UCR92774  Artemisia californica F. M. Reed 1927-11-10 5640 Orange South Coast, Sulfur Slide Hill in Santa Ana River Canyon 150 Comment
  CAS-BOT-BC90267  Artemisia douglasiana John Thomas Howell 1927-8-13 2989 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  CAS-BOT-BC90268  Artemisia douglasiana John Thomas Howell 1927-8-13 2989 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  CHSC35340  Artemisia douglasiana James Henrickson 1972-10-21 8048 Orange Eastern Anaheim, 2 blocks E of Imperial Hwy, along La Palma Ave., just N of Santa Ana River. 60 Comment
  IRVC3140  Artemisia douglasiana Fred M. Roberts 1986-9-3 3140 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA751431  Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-7-3 35689 Orange Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  RSA778  Artemisia douglasiana J. T. Howell 1927-8-13 627 Orange Santa Ana River Bottom 152 Comment
  UCR193794  Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-7-3 35689 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  CAS-BOT-BC90564  Artemisia dracunculus John Thomas Howell 1927-9-24 3110 Orange on n. side of Santa Ana [Canon] Canyon 213 Comment
  CAS-BOT-BC90566  Artemisia dracunculus John Thomas Howell 1927-9-24 3118 Orange on sandy island in Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  CHSC35807  Artemisia dracunculus James Henrickson 1973-10-21 8052 Orange Eastern Anaheim, 2 blocks E of Imperial Hwy along La Palma Ave., just N of Santa Ana River. 60 Comment
  JEPS36975  Artemisia dracunculus John Thomas Howell 1927-9-24 3110 Orange Rancho Santa Ana Santa Ana Canon 152 Comment
  RSA748272  Artemisia dracunculus A. C. Sanders, Fred M. Roberts 2008-6-17 35514 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA774  Artemisia dracunculus J. T. Howell 1927-9-24 752 Orange Santa Ana River Bottom, Rancho Santa Ana 152 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
  RSA779  Artemisia tridentata J. T. Howell 1927-10-22 763 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  JEPS36950  Artemisia tridentata subsp. tridentata John Thomas Howell 1927-10-22 3165 Orange Rancho Santa Ana Santa Ana river bottom, Rancho Santa Ana 152 Comment
  RSA12377  Arundo donax C. B. Wolf, E. R. Johnson 1934-3-21 5579 Orange Santa Ana River, Santa Ana Canyon, 1/2 mi. S.W. of Mexican Houses, Rancho Santa Ana. 122 Comment
  RSA788913  Arundo donax Fred M. Roberts 2008-9-17 7099 Orange Peninsular Ranges: Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.7 km W Gypsum Cyn. Rd. bridge, south of La Palma Ave. 107 Comment
  JEPS49870  Asclepias eriocarpa John Thomas Howell 1927-7-16 2785 Orange Rancho Santa Ana Santa Ana Cnayon 152 Comment
  POM201693  Asclepias eriocarpa L. M. Booth 812 Orange Santa Ana Canyon. Comment
  RSA0104738  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-7-3 35672 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor. 365 Comment
  RSA0104747  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35519 Orange Middle section of Weir Canyon, SSE of Walnut Canyon Reservoir. 225 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
  RSA49952  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
  RSA563  Asclepias eriocarpa J. T. Howell 1927-7-16 417 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA751893  Asclepias eriocarpa Justin M. Wood, Joy England 2009-7-27 1222 San Bernardino Chino Hills State Park, northridge trail and vicinity. 488 Comment
  UCR193029  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35519 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR193766  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-7-3 35672 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA751895  Asclepias fascicularis Justin M. Wood, Joy England 2009-7-27 1224 San Bernardino Chino Hills State Park, northridge trail and vicinity. 488 Comment
  RSA701806  Asphodelus fistulosus Fred M. Roberts 2000-6-5 5337 Orange Yorba Linda, along Hidden Hills Dr. near Sunbeam Lane, on ridge above Box Canyon 376 Comment
  UCR149413  Asphodelus fistulosus Fred M. Roberts 2000-6-5 5337 Orange Chino Hills, Yorba Linda, along Hidden Hills Dr. near Sunbeam Lane, on ridge above Box Canyon 376 Comment
  RSA781  Aster hesperius J. T. Howell 1927-10-29 779 Orange Bryant Ranch near Long Beach. 15 Comment
  IRVC25156  Aster subulatus var. ligulatus Fred M. Roberts 1986-9-3 3129 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA782  Aster subulatus var. ligulatus J. T. Howell 1927-10-29 775 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA784  Aster subulatus var. ligulatus J. T. Howell 1927-9-24 750 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  RSA699979  Astragalus Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  RSA379  Astragalus didymocarpus J. T. Howell 1928-3-17 872 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA653211  Astragalus didymocarpus var. didymocarpus David Barrios 1991-5-1 12 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle. 365 Comment
  RSA735969  Astragalus didymocarpus var. didymocarpus Scott D. White, Justin M. Wood 2008-4-21 11904 Orange Chino Hills: Chino Hills State Park, N of 91 freeway, above Yorba Linda. 366 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
  UCR199730  Astragalus didymocarpus var. didymocarpus Scott D. White, Justin Wood 2008-4-21 11904 Orange Chino Hills, Chino Hills State Park, N of 91 freeway, above Yorba Linda 488 Comment
  RSA735036  Astragalus gambelianus Scott D. White, Justin M. Wood, Jason Berkley 2008-4-8 11829 San Bernardino Chino Hills: Chino Hills State Park, northridge trail and vicinity. 488 Comment
  UCR192500  Astragalus gambelianus A. C. Sanders, Fred M. Roberts 2008-3-25 34547 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR199685  Astragalus gambelianus Scott D. White, Justin Wood, Jason Berkley 2008-4-8 11829 San Bernardino Chino Hills, Chino Hills State Park, northridge trail and vicinity 488 Comment
  JEPS54671  Astragalus trichopodus var. lonchus C. J. Kraebel 1929-12-9 Orange hillside s San Juan Hill (Rancho Santa Ana Botanic Garden, in extreme e corner of Orange County, n of Santa Ana River, e of Anaheim); Rancho Santa Ana Botanic Garden, nr San Juan Hill 304 Comment
  JEPS54846  Astragalus trichopodus var. lonchus John Thomas Howell 1927-6-2 2415 Orange Santa Ana Canyon Rancho Santa Ana; , Santa Ana Canyon 152 Comment
  RSA264438  Astragalus trichopodus var. lonchus C. W. Tilforth 1976-11-12 1239 Orange Slopes of Rancho Santa Ana above Horseshoe Bend of the Santa Ana River, SE of Yorba Linda. 152 Comment
  RSA380  Astragalus trichopodus var. lonchus J. T. Howell 1928-2-7 815 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC200841  Astragalus trichopodus var. trichopodus John Thomas Howell 1927-6-2 2415 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  RSA255  Atriplex canescens J. T. Howell 1927-10-22 761 Orange Near Eastern Boundary, Rancho Santa Ana. 152 Comment
  RSA256  Atriplex canescens J. T. Howell 1927-7-29 519 Orange Near east boundary of Rancho Santa Ana. 152 Comment
  RSA259  Atriplex canescens J. T. Howell 1927-10-22 760 Orange Near Eastern Boundary, Rancho Santa Ana. 152 Comment
  RSA260  Atriplex canescens J. T. Howell 1927-10-22 759 Orange Near Eastern Boundary, Rancho Santa Ana. 152 Comment
  RSA5333  Atriplex canescens B. D. Stark 1933-1-3 1731 Orange Rancho Santa Ana near pear orchard. 122 Comment
  CAS-BOT-BC170194  Atriplex canescens subsp. canescens John Thomas Howell 1927-7-29 2874 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  CAS-BOT-BC170195  Atriplex canescens subsp. canescens John Thomas Howell 1927-10-22 3163 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  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
  CAS-BOT-BC170197  Atriplex canescens subsp. canescens John Thomas Howell 1927-10-22 3161 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  RSA539447  Atriplex polycarpa Karlin G. Marsh 1991-10-29 s.n. Orange Anaheim: Santa Ana Canyon, south side of Santa Ana River just east of Imerial Highway, 4.1km NW Robbers Peak. 87 Comment
  RSA599642  Atriplex polycarpa Fred M. Roberts, M. B. Woulfe 1996-8-13 4971 Orange Yorba Linda: Chino Hills, Shell Oil Property, 3.0 km SW Gilman Peak. 201 Comment
  RSA638190  Atriplex polycarpa Scott D. White 1998-10-15 7185 Orange Yorba Linda: 1/2 mile south of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development 152 Comment
  UCR151119  Atriplex polycarpa Scott D. White 1998-10-15 7185 Orange Santa Ana Mtns foothills, Yorba Linda, c. 0.5 mi south of Telegraph Canyon between Ohio St. and Fairmont 305 Comment
  RSA250  Atriplex serenana J. T. Howell 1927-7-5 265 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA252  Atriplex serenana J. T. Howell 1927-7-22 459 Orange North of Botany Garden, Rancho Santa Ana. 274 Comment
  CAS-BOT-BC176754  Atriplex serenana var. serenana John Thomas Howell 1927-7-5 2650 Orange Along road, Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC176757  Atriplex serenana var. serenana John Thomas Howell 1927-7-22 2817 Orange On north side of Santa Ana [Canon] Canyon 335 Comment
  CAS-BOT-BC146057  Avena barbata Ira L. Wiggins 1966-2-18 20450 Orange Roadside 0.5 mile west of entrance to Rancho Santa Ana, near end of Orangthorpe Avenue. Comment
  UCD56188  Avena barbata Ira L. Wiggins 1966-2-18 20450 Orange 1/2 mile west of entrance to Rancho Santa Ana. Near end of Orangethorpe Ave. Comment
  UCR192481  Avena barbata A. C. Sanders, Fred M. Roberts 2008-3-25 34517 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR192634  Avena fatua A. C. Sanders, Fred M. Roberts 2008-3-25 34516 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC66214  Azolla filiculoides John Thomas Howell 1927-7-6 2663 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA13  Azolla filiculoides John Thomas Howell 1927-7-6 284 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA17461  Azolla filiculoides Carl B. Wolf 1936-9-21 8273 Orange Rancho Santa Ana, Santa Ana Canyon 121 Comment
  RSA21069  Azolla filiculoides Ramon Valverde 1938-8-4 9435 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA751897  Azolla filiculoides Justin M. Wood, Joy England 2009-7-27 1212 San Bernardino Chino Hills State Park. McDermont Spring. 351 Comment
  UCR207787  Azolla filiculoides O. F. Clarke 2004-8-23 s.n. Orange Santa Ana River Valley, Yorba Linda, Yorba Regional Park, Santa Ana River bank near intersection of E. La Palma Ave. and Fairmont Blvd. 91 Comment
  CHSC35829  Baccharis emoryi James Henrickson 1972-10-21 8047 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave, just N of Santa Ana River. 60 Comment
  RSA184186  Baccharis emoryi I. L. Wiggins 1965-11-6 20338 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA5324  Baccharis emoryi B. D. Stark 1932-12-30 14471 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA731921  Baccharis emoryi Fred M. Roberts, Sandy Leatherman 2007-11-27 6658 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
  RSA731922  Baccharis emoryi Fred M. Roberts, Sandy Leatherman 2007-11-27 6657 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
  RSA788  Baccharis emoryi J. T. Howell 1927-10-22 764 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  SDSU6382  Baccharis emoryi D. F. Howe 1945-10-20 1353 Orange Santa Ana River between Orange and Corona. Comment
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Jan 24 2013
  CAS-BOT-BC99443  Baccharis pilularis P. C. Everett 1934-7-31 6045 Orange east of Administration Bldg., Rancho Santa Ana Botanic Garden 198 Comment
  RSA731919  Baccharis pilularis Fred M. Roberts, Sandy Leatherman 2007-11-27 6660 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  RSA731920  Baccharis pilularis Fred M. Roberts, Sandy Leatherman 2007-11-27 6659 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
  RSA735039  Baccharis pilularis Scott D. White, Justin M. Wood, Jason Berkley 2008-4-8 11831 San Bernardino Chino Hills: Chino Hills State Park, northridge trail and vicinity. 488 Comment
  SD73484  Baccharis pilularis P. C. Everett 1934-11-7 6246 Orange Rancho Santa Ana Botanic Garden; open hilltop. 199 Comment
  UCR199686  Baccharis pilularis Scott D. White, Justin Wood, Jason Berkley 2008-4-8 11831 San Bernardino Chino Hills, Chino Hills State Park, northridge trail and vicinity 488 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
  POM350370  Baccharis salicifolia E. Crow 1929-2-22 171 Orange Gypsum Canyon, Snata Ana Mts, S of Corona Comment
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Aug 29 2013
  RSA5325  Baccharis salicifolia B. D. Stark 1932-12-30 4470 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA607268  Baccharis salicifolia L. C. Wheeler 1931-8-16 s 28 Orange Santa Ana River 152 Comment
  RSA734659  Baccharis salicifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, David E. Bramlet 2008-5-9 35295 Orange Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir. 277 Comment
  RSA734660  Baccharis salicifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, David E. Bramlet 2008-5-9 35295 Orange Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir. 277 Comment
  RSA789  Baccharis salicifolia J. T. Howell 1927-10-23 769 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR192116  Baccharis salicifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35295 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir 277 Comment
  JEPS21281  Baccharis salicifolia subsp. salicifolia J. Thomas Howell 1927-10-23 3171 Orange Rancho Santa Ana, Santa Ana River Comment
  JEPS21857  Baccharis salicifolia subsp. salicifolia Annette Waters 1958-3-30 161 Orange 3.2 mi ne of, on State Highway 91, 18 Atwood Placentara turnoff Comment
  CAS-BOT-BC106666  Baccharis salicina Ira L. Wiggins 1965-11-6 20338 Orange Kraemer Oil Estates, near well No. 14, near end of county road constituted by continuation of Orangethorpe Avenue Comment
  JEPS21280  Baccharis salicina John Thomas Howell 1927-10-22 3166 Orange Rancho Santa Ana Santa Ana River bottom 152 Comment
  UCD129397  Baccharis salicina Ira L. Wiggins 1965-11-6 20338 Orange Kraemer Oil Estates, near well no. 15, near end of county road constituted by continuation of Orangethorpe Ave. Comment
  RSA0069229  Baccharis sarothroides Fred M. Roberts, Sandra Leatherman 2008-9-3 7091 Orange Santa Ana River Canyon: Yorba Linda: intersection of La Palma Ave. and Mercado del Rio Street. 135 Comment
  UCR194992  Baccharis sarothroides A. C. Sanders, Fred M. Roberts 2008-8-7 35997 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. near wash crossing, 1.0 mi. SSE of Walnut Canyon Reservoir 232 Comment
  UCR267220  Baccharis sarothroides Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7091 Orange Santa Ana River Canyon, YORBA LINDA: intersection of La Palma Ave. and Mercado del Rio Street 135 Comment
  UCR267221  Baccharis sarothroides Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7093 Orange Santa Ana River Canyon, YORBA LINDA: intersection of La Palma Ave. and Mercado del Rio Street 135 Comment
  RSA638194  Baccharis sergiloides Scott D. White 1998-10-15 7187 Orange Yorba Linda: 1/2 mile south of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development. 152 Comment
  SD181717  Baccharis sergiloides Scott D. White 1998-10-15 7187 Orange Yorba Linda, 0.5 mile south of Telegraph Canyon between Ohio St. and Fairmont. 149 Comment
  UCR151116  Baccharis sergiloides Scott D. White 1998-10-15 7187 Orange Santa Ana Mtns foothills, Yorba Linda, c. 0.5 mi south of Telegraph Canyon between Ohio St. and Fairmont 305 Comment
  RSA699555  Baccharis viminea Minor Warne 1934-02 s.n. Orange Santa Ana Mountains Comment
  RSA0069228  Bacopa monnieri Fred M. Roberts, Sandra Leatherman 2008-9-3 7090 Orange Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave. 113 Comment
  UCR266666  Bacopa monnieri Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7090 Orange YORBA LINDA: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave 113 Comment
  CAS-BOT-BC334499  Bahiopsis laciniata R. E. Riefner, Jr. 2013-4-5 13 -56 Orange Anaheim Hills, vicinity Hidden Canyon Rd. at Avenue De Santiago 305 Comment
  RSA0025299  Bahiopsis laciniata R. E. Riefner Jr. 2013-4-5 13 -56 Orange Anaheim Hills, vicinity of Hidden Canyon Rd. at Avenue de Santiago. 305 Comment
  SD248323  Bahiopsis laciniata R. E. Riefner Jr. 2013-4-5 13 56 Orange Anaheim Hills, vicinity Hidden Canyon Rd., at Avenue De Santiago 305 Comment
  SEINET5585508  Bahiopsis laciniata R. E. Riefner Jr. 2013-1 13 -56 Orange Anaheim Hills, vicinity Hidden Canyon Rd. at Avenue De Santiago. 305 Comment
  UCR247452  Bahiopsis laciniata R. E. Riefner Jr. 2013-4-5 13- 56 Orange Anaheim Hills,vicinity of Hidden Canyon Road at Avenue De Santiago 305 Comment
  RSA730993  Barbarea orthoceras Fred M. Roberts 2006-11-15 6467 Orange Santa Ana Cyn., Santa Ana RIver, north bank, 1.1 km ENE Imperial Hwy crossing. At river s edge at base of cement bank on sandy soil in narrow riparian herb community. 85 Comment
  UCD97658  Bassia hyssopifolia Ira L. Wiggins 1966-4-1 20576 Orange Railroad embankment near entrance to Rancho Santa Ana. Comment
  POM17862  Bebbia juncea Philip A. Munz 1923-7-8 73226 Orange Santa Ana River Canyon Comment
  POM212046  Bebbia juncea C. B. Wolf 1931-7-25 2295 Orange N side of pear orchard, Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA1358  Bebbia juncea B. D. Stark 1929-11-2 651 Orange Along railroad track, Rancho Santa Ana 152 Comment
  RSA30446  Bebbia juncea Elisabeth Norland 1942-7-3 11283 Orange Rancho Santa Ana RR track, 1/4 mile E of entrance Comment
  RSA5334  Bebbia juncea B. D. Stark 1933-1-3 4480 Orange Rancho Santa Ana near pear orchard. 122 Comment
  RSA751320  Bebbia juncea A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35283 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  RSA790  Bebbia juncea J. T. Howell 1927-6-2 13 Orange Sandstone Ridge, Botany Garden, RSA. 152 Comment
  SBBG45055  Bebbia juncea C. B. Wolf 1931-7-25 2295 Orange Santa Ana, Santa Ana Cyn 121 Comment
  UCR192097  Bebbia juncea A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35283 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR38073  Bebbia juncea G. Sampson 1985-5-7 85- 387 Orange Chino Hills State Park, abandoned corral site at the west end of Telegraph Canyon Comment
  CAS-BOT-BC106423  Bebbia juncea var. aspera John Thomas Howell 1927-6-2 2412 Orange Southern Puente Hills in teh Santa Ana Canyon [Canon] 152 Comment
  CAS-BOT-BC106424  Bebbia juncea var. aspera B. D. Stark 1929-11-2 651 Orange Along railroad track, Rancho Santa Ana 152 Comment
  CAS-BOT-BC106425  Bebbia juncea var. aspera C. B. Wolf 1931-7-25 2295 Orange North of Pear Orchard, Rancho Santa ana, Santa Ana Can. 121 Comment
  IRVC22019  Bebbia juncea var. aspera D. Bramlet 1985-7-2 AH-1 Orange Anaheim Hills Golf Course, on knoll near #3 green, Anaheim 183 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
  UC1119033  Bebbia juncea var. aspera A. Lewis 1934-3-1 334 Orange Corona, along r.r. Santa Ana Canyon Corona, Santa Ana Canyon 121 Comment
  UC284232  Bebbia juncea var. aspera P. A. Munz 1923-7-8 7326 Orange Santa Ana River Canon Comment
  UC484167  Bebbia juncea var. aspera B. D. Stark 1929-11-2 651 Orange Rancho Santa Ana 152 Comment
  UC527451  Bebbia juncea var. aspera C. B. Wolf 1931-7-25 Orange n of Pear Orchard (Rancho Santa Ana, Santa Ana Canyon); Rancho Santa Ana, Santa Ana Canyon 121 Comment
  CAS-BOT-BC102098  Bidens laevis John Thomas Howell 1927-10-23 3170 Orange Santa Ana River bottom, Santa Ana Canon 152 Comment
  IRVC25148  Bidens laevis Fred M. Roberts 1986-9-3 3136 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA730992  Bidens laevis Fred M. Roberts 2006-11-15 6466 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  RSA800  Bidens laevis J. T. Howell 1927-10-23 768 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR182888  Bidens laevis Pat Akers 2006-3-25 PA2 06 Orange Yorba Linda, N edge of Santa Ana River. south of La Palma Dr., 0.5-0.8 mi. east of Yorba Linda Dr 122 Comment
  JEPS32526  Bidens pilosa W. L. Jepson 1940-10-6 20181 Orange Horseshoe Bend, Santa Ana Canyon Santa Ana Canyon, Horseshoe Bend Comment
  JEPS32527  Bidens pilosa W. L. Jepson 1940-10-6 20181 Orange Horse Bend, Santa Ana Canyon Santa Ana Canyon, Horseshoe Bend Comment
  RSA730988  Bidens pilosa var. pilosa Fred M. Roberts 2006-11-15 6462 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
  RSA749995  Bloomeria crocea A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35329 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  UCR194556  Bloomeria crocea A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35329 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  RSA113874  Bloomeria crocea var. crocea E. K. Balls 1956-5-17 21639 Orange Madrone Canyon, from plants native to area. grown from seed collection, June 19, 1949. Prop. No. 6309, Botanic Garden Comment
  UCR16608  Bloomeria crocea var. crocea Kenneth Hibberd 1966-4-30 660430- 3 Orange 0.5 mi S on Mohler Rd. in the Santa Ana Canyon, 5 mi west of Riverside Co. 244 Comment
  CAS-BOT-BC145863  Bothriochloa barbinodis John Thomas Howell 1927-6-5 2437 Orange Southern Puente Hills, Santa Ana Canon [Canyon]. 152 Comment
  RSA37  Bothriochloa barbinodis J. T. Howell 1927-6-5 38 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA735168  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35281 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR192080  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35281 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  CAS-BOT-BC145854  Bothriochloa laguroides subsp. torreyana John Thomas Howell 1927-6-5 2437 Orange Santa Ana Canyon. 152 Comment
  CAS-BOT-BC95405  Bowlesia incana John Thomas Howell 1928-2-26 s.n. Orange Hills on N side of Santa Ana Canyon 152 Comment
  RSA520  Bowlesia incana J. T. Howell 1928-2-26 853 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA60252  Bowlesia incana E. K. Balls 1950-3-7 14446 Orange Rancho Santa Aa Botanic Garden. Comment
  SEINET3156098  Bowlesia septentrionalis E. K. Balls 1950-3-7 14446 Orange Administration Grounds of Rancho Santa Ana Botanic Garden Comment
  UCR192472  Brassica geniculata A. C. Sanders, Fred M. Roberts 2008-3-25 34540 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC30256  Brassica nigra Alice Eastwood 1934-4-29 s.n. Orange Rancho Santa Ana. Comment
  RSA0043350  Brassica nigra David Barrios 1991-5-8 40 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  RSA0066348  Brassica nigra A. C. Sanders, Fred M. Roberts 2008-3-25 34567 Orange Peninsular Range; Santa Ana Mtns.: Saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  UC1126843  Brassica nigra A. Lewis Mar 1934 347 San Bernardino San Juan Hills, Corona Quadrangle San Juan Hills; , Corona Quadrangle 396 Comment
  UCR191783  Brassica nigra A. C. Sanders, Fred M. Roberts 2008-3-25 34567 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  OBI17601  Brassica rapa Kurt R. Neisess 1975-12-19 s.n. Orange In Yorba Linda Comment
  RSA0043351  Brassica rapa subsp. sylvestris David Barrios 1991-5-8 36 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  RSA792  Brickellia californica J. T. Howell 1927-11-5 801 Orange Racnho Santa Ana, W side. Comment
  RSA584704  Brickellia nevinii Fred M. Roberts, Carol A. Roberts 1989-5-11 4352 Orange Gypsum Canyon, 2.9 km WSW Sierra Peak, about 3.3km S by road of Santiago Canyon Road. 189 Comment
  RSA43  Bromus arvensis J. T. Howell 1927-6-17 153 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA748370  Bromus carinatus Justin M. Wood, J. D. England 2009-7-27 1218 San Bernardino Chino Hills State Park. McDermont Spring. 351 Comment
  UCR38841  Bromus carinatus G. Sampson 1985-4-23 85- 369 Orange Chino Hills State Park, south of McDermott Spring in east end of Telegraph Canyon 412 Comment
  CAS-BOT-BC156204  Bromus catharticus John Thomas Howell 1956-3-11 30924 Orange Yorba Linda Comment
  CAS-BOT-BC156205  Bromus catharticus John Thomas Howell 1956-3-11 30922 Orange Yorba Linda. Comment
  CAS-BOT-BC156207  Bromus catharticus John Thomas Howell 1956-3-11 30923 Orange Yorba Linda. Comment
  RSA653209  Bromus catharticus David Barrios 1991-5-8 27 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  CAS-BOT-BC156002  Bromus diandrus John Thomas Howell 1927-6-9 2466 Orange North side Santa Ana Canon [Canyon]. 152 Comment
  CAS-BOT-BC156006  Bromus diandrus P. Munz; L. Street; G. Williams 1919-5-3 2644 Orange Santa Ana River Canyon. Comment
  POM7087  Bromus diandrus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2644 Orange Santa Ana River Canyon. 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
  RSA735970  Bromus madritensis subsp. madritensis Scott D. White, Justin M. Wood 2008-4-21 11903 Orange Chino Hills State Park, N of 91 freeway, above Yorba Linda. 366 Comment
  CAS-BOT-BC162108  Bromus porteri John Thomas Howell 1927-6-17 2549 Orange Hills on north side of Santa Ana Canon [Canyon]. 152 Comment
  CAS-BOT-BC161819  Bromus rubens Ira L. Wiggins 1966-2-18 20449 Orange Near end of County road, 0.5 mile west of entrance to Rancho Santa Ana. Comment
  CAS-BOT-BC161823  Bromus rubens John Thomas Howell 1927-6-9 2465 Orange North side Santa Ana Canon [Canyon]. 152 Comment
  UCD59521  Bromus rubens Ira L. Wiggins 1966-2-18 20449 Orange Near end of County road, 1/2 mi. W of entrance to Rancho Santa Ana. Comment
  UCR192471  Bromus rubens A. C. Sanders, Fred M. Roberts 2008-3-25 34539 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA734639  Bromus sterilis A. C. Sanders, Fred M. Roberts, Amber O'Neal, David 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
  RSA751157  Bromus sterilis D. E. Bramlet 2008-4-28 4248 Orange East Fork of Upper Weir Cyn, 1.2km east of the main Cyn. & 91m W of the upper boundary of Gypsum Cyn. 409 Comment
  RSA734964  Calandrinia breweri A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35314 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  SBBG122652  Calandrinia breweri A. C. Sanders, F. M. Roberts, A. O'Neal 2008-5-9 35314 Orange Weir Cyn, along fire line/bulldozer cut, ca. 1.5 mi E of Walnut Cyn Reservoir 346 Comment
  SD234996  Calandrinia breweri A. C. Sanders, Fred M. Roberts, Amber ONeal 2008-5-9 35314 Orange Peninsular Range: Santa Ana Mountains; Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Canyon Reservoir (Black Star Sanyon 7.5' Q) 345 Comment
  UCR192106  Calandrinia breweri A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35314 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA279  Calandrinia ciliata J. T. Howell 1928-2-25 841 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA734813  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34576 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  RSA749635  Calandrinia ciliata D. E. Bramlet 2008-4-28 4245 Orange East Fork of Upper Weir Cyn, 1.2km east of the main Cyn. & 91m W of the upper boundary of Gypsum Cyn. 409 Comment
  SD234997  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34576 Orange Peninsular Range: Santa Ana Mountains; saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mile N of (Santiago Reservoir) Irvine Lake (Black Star Canyon7.5' Q) 405 Comment
  UC1136618  Calandrinia ciliata A. Lewis Mar 1934 344 Orange San Juan Hills Corona Quadrangle Comment
  UCR192454  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34576 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UCR192501  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34548 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR222642  Calandrinia ciliata D. E. Bramlet 2008-4-28 4245 Orange Peninsular Range; Santa Ana Mtns. Foothills, east fork of upper Weir Canyon, 1.2 km east of the main canyon and 91 m west of the upper boundary of Gypsum Canyon 409 Comment
  POM13942  Calochortus catalinae William M. Pierce 1922-4-11 s.n. Orange Santa Ana Mountians, Santa Ana Canyon. Comment
  POM6460  Calochortus catalinae Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2624 Orange Santa Ana River Canyon. Comment
  RSA120  Calochortus catalinae J. T. Howell 1928-3-17 863 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA21235  Calochortus catalinae S. B. Bryant 1937-4-10 8506 Orange Rancho Santa Ana, Santa Ana Canyon, along road & roundtop to Horseshoe Bend. 244 Comment
  RSA552928  Calochortus catalinae Fred M. Roberts, Carol A. Roberts 1989-5-11 4350 Orange Santa Ana Mountains: Upper Gypsum Canyon, along ridge road, 5.6 kilometers SW Sierra Peak. 472 Comment
  RSA653190  Calochortus catalinae David Barrios 1991-5-1 14 Orange Yorba Linda: 1500 ft. NW of Fairmount Avenue & Quail Circle. 366 Comment
  RSA734648  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-3-25 34568 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
  RSA735023  Calochortus catalinae Scott D. White, Justin M. Wood 2008-4-9 11843 San Bernardino Chino Hills State Park, in and adjacent to the northern park boundary. To the west and southwest of the main park enterance. 366 Comment
  RSA735172  Calochortus catalinae A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35289 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR191776  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-3-25 34568 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
  UCR192103  Calochortus catalinae A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35289 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR192502  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-3-25 34549 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR199676  Calochortus catalinae Scott D. White, Justin M. Wood 2008-4-9 11843 San Bernardino Chino Hills, Chino Hills State Park, in and adjacent to the northern park boundary, to the west and southwest of the main park entrance 512 Comment
  POM6366  Calochortus splendens Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2625 Orange Santa Ana River Canyon. Comment
  RSA118  Calochortus splendens J. T. Howell 1928-4-7 895 Orange Bee Canyon, Rancho Santa Ana 152 Comment
  RSA68627  Calochortus splendens Frank W. Peirson 1922-5-18 3061 Orange Santa Ana River 122 Comment
  RSA751321  Calochortus splendens A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35291 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR192096  Calochortus splendens A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35291 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR193353  Calochortus weedii A. C. Sanders, Joshua M. Brokaw 2008-5-28 35427 Orange Peninsular Range; Santa Ana Mtns., upper Weir Canyon, along old dirt road west of Eastern Transportation Corridor, 1.65 mi. east of south end of Walnut Cyn Reservoir 372 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
  NY1104587  Calochortus weedii var. intermedius J. T. Howell 1927-6-22 2572 Orange On N side of Santa Ana Canon [Santa Ana Canyon] 244 Comment
  RSA271148  Calochortus weedii var. intermedius C. W. Tilforth 1977-6-15 1344 Orange Rancho Santa Ana property in the area of Horseshoe Bend of the Santa Ana River, Santa Ana Canyon, north-east Orange County. Comment
  RSA68621  Calochortus weedii var. intermedius Frank W. Peirson 1927-6-20 7350 Orange Site for botanical garden (Rancho Santa Ana) Comment
  RSA734897  Calochortus weedii var. intermedius A. C. Sanders, Joshua M. Brokaw 2008-5-28 35427 Orange Peninsular Range; Santa Ana Mtns.: upper Weir Canyon, along old dirt road west of Eastern Transportation Corridor, 1.65 mi. east of south end of Walnut Cyn Reservoir. 372 Comment
  RSA749645  Calochortus weedii var. intermedius D. E. Bramlet 2008-6-5 4290 Orange Santa Ana Mtns foothills: Tributary to Weir Cyn., 731 m N of the SCE Transmission Line & 229m west of Weir Canyon Road. 257 Comment
  RSA753166  Calochortus weedii var. intermedius D. E. Bramlet 2008-5-9 4263 Orange Ridgeline between the upper two tributaries of Wier Cyn. 1.2km east of S. Serrano Ave & 1.3km west of Gypsum Cyn. 330 Comment
  UCR222644  Calochortus weedii var. intermedius D. E. Bramlet 2008-5-9 4263 Orange Peninsular Range; Santa Ana Mtns. Foothills, ridgeline between the upper two tributaries of Wier Canyon, 1.2 km east of S Serrano Ave. and 1.3 km west of Gypsum Cyn 330 Comment
  JEPS61770  Calochortus weedii var. weedii John Thomas Howell 1927-6-22 2572 Orange Rancho Santa Ana Santa Ana Canyon 152 Comment
  CDA25245  Calycadenia tenella A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35323 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, 0.3 mile west of Eastern Transportation Corridor (Highway 241) and 1.45 miles east of south end of Walnut Canyon Reservoir. Comment
  PASA2306  Calycadenia tenella Frank W. Peirson 1922-5-18 Orange Santa Ana River 121 Comment
  POM6379  Calycadenia tenella Philip A. Munz 1919-5-3 2631 Orange Santa Ana River Canyon. Comment
  RSA750000  Calycadenia tenella A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35323 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir. 335 Comment
  RSA795  Calycadenia tenella J. T. Howell 1927-7-28 511 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  UCR194552  Calycadenia tenella A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35323 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  UCR192473  Calystegia macrostegia A. C. Sanders, Fred M. Roberts 2008-3-25 34541 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC221302  Calystegia macrostegia subsp. intermedia John Thomas Howell 1927-6-9 2462 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 152 Comment
  RSA558  Calystegia macrostegia subsp. intermedia J. T. Howell 1927-6-9 62 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA647894  Calystegia macrostegia subsp. intermedia Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 23 Orange 1/2 mile south of Chino Hills State Park. By a seasonal tributary to the Santa Ana River. 167 Comment
  RSA653181  Calystegia macrostegia subsp. intermedia David Barrios 1991-5-1 13 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle., (117 deg. 45' 00'' +4 28 / 33 deg. 52' 37'' + 37 51.5). 365 Comment
  RSA653182  Calystegia macrostegia subsp. intermedia David Barrios 1991-5-1 15 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle., (117 deg. 45' 00'' +4 28 / 33 deg. 52' 37'' + 37 51.5). 366 Comment
  RSA394914  Calystegia macrostegia subsp. tenuifolia H. L. Bauer 1929-5-7 s.n. Orange Santa Ana Canyon Comment
  UCR193261  Camissonia A. C. Sanders, Fred M. Roberts 2008-6-17 35521 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  RSA504  Camissonia bistorta J. T. Howell 1928-4-7 898 Orange Bee Canyon, Rancho Santa Ana 152 Comment
  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
  RSA25949  Camissonia californica E. Johnson 1941-5-1 s.n. Orange River bottom, Rancho Santa Ana Comment
  RSA498  Camissonia californica J. T. Howell 1927-6-5 39 Orange Rancho Santa Ana, near east boundary. 152 Comment
  UCR192491  Camissonia hirtella A. C. Sanders, Fred M. Roberts 2008-3-25 34558 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA507  Camissonia lewisii J. T. Howell 1928-4-7 902 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA508  Camissonia lewisii J. T. Howell 1928-4-7 896 Orange Bee Canyon, Rancho Santa Ana 152 Comment
  UCR193415  Camissonia micrantha A. C. Sanders, Fred M. Roberts 2008-6-17 35522 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  UCR209364  Camissonia robusta Fred M. Roberts, Linda Farley 2008-3-28 6830 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
  RSA509  Camissonia strigulosa J. T. Howell 1928-4-7 900 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  POM6389  Cardamine californica var. integrifolia P. A. Munz, L. T. Street, Williams 1919-5-3 2637 Orange Santa Ana River Canyon. Comment
  RSA484622  Cardamine californica var. integrifolia E. Crow 1929-2-22 156 a Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. 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
  RSA647884  Carduus tenuiflorus Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 42 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 243 Comment
  RSA653213  Carduus tenuiflorus David Barrios 1991-5-8 31 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA76  Carex praegracilis J. T. Howell 1928-4-7 904 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA737489  Carex triquetra D. E. Bramlet 2008-5-9 4264 Orange Ridgeline between the upper two tributaries of Wier Cyn. 1.2km east of S. Serrano Ave & 1.3km west of Gypsum Cyn. 330 Comment
  POM6405  Castilleja affinis Philip A. Munz, Street, Williams 1919-5-3 2616 Orange Santa Ana River Canyon. Comment
  RSA707  Castilleja affinis J. T. Howell 1927-6-2 11 Orange Sandstone Ridge, Botany Garden, RSA. 152 Comment
  RSA734649  Castilleja affinis A. C. Sanders, Fred M. Roberts 2008-3-25 34572 Orange Peninsular Range; Santa Ana Mtns.: Saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  UCR191780  Castilleja affinis A. C. Sanders, Fred M. Roberts 2008-3-25 34572 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UC1424837  Castilleja affinis subsp. affinis C. W. Tilforth and Dorothy Tilforth 1977-3-6 1259 Orange ca 10 mi w Corona (large wash w of Weir Canyon, s side of Santa Ana River) 152 Comment
  RSA705  Castilleja foliolosa J. T. Howell 1928-2-25 848 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA14727  Ceanothus crassifolius E. R. Johnson 1935-2-21 s.n. Orange Santa Ana River Bottom. Rancho Santa Ana. Comment
  RSA21485  Ceanothus crassifolius E. R. Johnson 1936-3-16 8313 Orange Rancho Santa Ana, Santa Ana Canyon. So. of Ranch Buildings 122 Comment
  RSA398894  Ceanothus crassifolius E. Crow 1929-2-22 160 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  CAS-BOT-BC50845  Ceanothus insularis Carl B. Wolf 1941-6-25 11221 Los Angeles Rancho Santa Ana Botanic Garden - Flat, in nersery. Originally collected: Santa Catalina Island, head of Avalon Canyon 121 Comment
  RSA21234  Ceanothus leucodermis E. R. Johnson 1937-4-6 8505 Orange Rancho Santa Ana, Santa Ana Canyon south of Ranch Buildings. 122 Comment
  RSA3025  Ceanothus leucodermis E. R. Johnson 1931-12-31 2641 Orange Racho Santa Ana, river bottom south of Ranch houses, ear the boudary benre. Comment
  RSA12375  Ceanothus megacarpus Carl B. Wolf 1934-3-21 5577 Orange Santa Ana River, Santa Ana Canyon, 1/2 mi. S.W. of Mexican Houses, Rancho Santa Ana. 122 Comment
  RSA21484  Ceanothus megacarpus E. R. Johnson 1936-3-16 8312 Orange Rancho Santa Ana, Santa Ana Canyon. So. of Ranch Buildings 122 Comment
  RSA734968  Ceanothus megacarpus A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35301 Orange Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA735268  Ceanothus megacarpus Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  SD130284  Ceanothus megacarpus B. Pitzer 1987-4-24 505 Orange 0.5 mile N of State Hwy 91, off Gypsum Canyon Rd., river at N side of stable. 120 Comment
  SD134389  Ceanothus megacarpus Craig Reiser 1987-6-26 Orange Anaheim, Wallace Ranch near Wier Canyon Road Comment
  SD236395  Ceanothus megacarpus A. C. Sanders, Fred M. Roberts, Amber ONeal, D. E. Bramlet 2008-5-9 35301 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road, c. 1.25 mi ESE of Walnut Cyn Reservoir. 340 Comment
  UCR192088  Ceanothus megacarpus A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35301 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UCR59223  Ceanothus megacarpus B. G. Pitzer 1987-4-24 505 Orange [Santa Ana] River at north side of stable, c. 0.5 mi. north of state hwy 91, off Gypsum Canyon Road 122 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
  RSA801987A  Ceanothus megacarpus var. megacarpus R. H. McArthur 1934-2-17 s.n. Orange Gypsum Canyon. 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
  RSA801988  Ceanothus thyrsiflorus R. H. McArthur 1934-3-17 s.n. Orange Gypsum Canyon Comment
  PASA2518  Ceanothus tomentosus Frank W. Peirson 1922-5-19 Orange Small canyon heading eastward from the Santa Ana Canyon at 400 ft. Comment
  RSA77337  Ceanothus tomentosus F. W. Peirson 1922-5-19 3050 Orange small canyon heading eastward from the Santa Ana River Canyon 122 Comment
  CAS-BOT-BC277101  Centaurea melitensis John Thomas Howell 1927-6-20 2558 Orange On north side of Santa Ana Canon [Canyon] 228 Comment
  RSA653176  Centaurea melitensis David Barrios 1991-5-8 23 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
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Apr 29 2008
  RSA735173  Centaurea melitensis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35276 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR192075  Centaurea melitensis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35276 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA23655  Centaurea repens E. R. Johnson 1939-4-25 9497 Orange Santa Ana Canyon. Rancho Santa Ana , along Santa Fe R.R. tracks south of Exp. citrus plot. 122 Comment
  RSA551  Centaurium venustum J. T. Howell 1927-6-2 15 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA516  Ceratophyllum demersum J. T. Howell 1927-8-13 625 Orange Santa Ana River Bottom 152 Comment
  POM6368  Cercocarpus betuloides Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2626 Orange Santa Ana River Canyon. Comment
  RSA16975  Cercocarpus betuloides E. R. Johnson 1936-4-10 7766 Orange Santa Ana Canyon, Rancho Santa Ana, toward the head of box canyon to the north of the pear orchard. 168 Comment
  RSA734966  Cercocarpus betuloides A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35304 Orange Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UCR192118  Cercocarpus betuloides A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35304 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  CAS-BOT-BC142125  Cercocarpus betuloides var. betuloides Munz; Street; Williams 1919-5-3 2626 Orange Santa Ana River Canyon Comment
  CAS-BOT-BC279502  Chaenactis artemisiifolia John Thomas Howell 1927-6-5 2433 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  RSA734657  Chaenactis artemisiifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, David E. Bramlet 2008-5-9 35317 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  RSA810  Chaenactis artemisiifolia J. T. Howell 1927-6-5 36 Orange just to E of Rancho Santa Ana 152 Comment
  UCR192114  Chaenactis artemisiifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35317 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA749647  Chaenactis glabriuscula D. E. Bramlet 2008-5-9 4266 Orange Ridgeline between the upper two tributaries of Wier Cyn. 1.2km east of S. Serrano Ave & 1.3km west of Gypsum Cyn. 330 Comment
  UCR192486  Chaenactis glabriuscula A. C. Sanders, Fred M. Roberts 2008-3-25 34513 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC283936  Chaenactis glabriuscula var. glabriuscula John Thomas Howell 1927-6-2 2411 Orange Southern Puente Hills in the Santa Ana Canon [Santa Ana Canyon] 152 Comment
  RSA811  Chaenactis glabriuscula var. glabriuscula J. T. Howell 1927-6-2 12 Orange Sandstone Ridge, Botany Garden, RSA. 152 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
  RSA648946  Chamaesyce albomarginata Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 62 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  RSA653184  Chamaesyce albomarginata David Barrios 1991-5-8 28 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA3130  Chamaesyce polycarpa var. polycarpa C. B. Wolf 1932-2-15 s.n. Orange Rancho Santa Ana Botanic Garden. 183 Comment
  RSA436  Chamaesyce polycarpa var. polycarpa J. T. Howell 1927-6-9 71 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA602209  Chamaesyce serpillifolia L. C. Wheeler 1945-5-20 6046 Orange Rancho Santa Ana Botanic Garden: In front of assembly hall. Comment
  RSA731927  Chenopodium album Fred M. Roberts, Sandy Leatherman 2007-11-27 6683 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA265  Chenopodium ambrosioides var. ambrosioides J. T. Howell 1927-7-18 430 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA751427  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-7-3 35676 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor. 365 Comment
  UCR193802  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-7-3 35676 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA264  Chenopodium berlandieri var. sinuatum J. T. Howell 1927-7-27 490 Orange Near ranch houses, Rancho Santa Ana 152 Comment
  RSA262  Chenopodium californicum J. T. Howell 1928-2-25 840 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA734812  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-3-25 34577 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  RSA735045  Chenopodium californicum Scott D. White, Justin Wood, Jason Berkley 2008-4-8 11827 San Bernardino Chino Hills State Park, northridge trail and vicinity. 488 Comment
  RSA749307  Chenopodium californicum Fred M. Roberts, Linda Farley 2008-3-28 7035 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
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Mar 23 2020
  UCR192453  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-3-25 34577 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
  UCR209380  Chenopodium californicum Fred M. Roberts, Linda Farley 2008-3-28 7035 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
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Mar 23 2020
  CDA20835  Chenopodium murale P. Akers 2006-3-25 PA 9 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River S of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  CHSC35781  Chenopodium murale James Henrickson 1972-10-21 8057 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave., just N. of Santa Ana River. 60 Comment
  OBI7967  Chenopodium murale Kurt R. Neisess 1975-12-19 s.n. Orange In Yorba Linda Comment
  RSA731958  Chenopodium murale Fred M. Roberts, Sandy Leatherman 2007-11-27 6698 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA751792  Chenopodium murale A. C. Sanders, Fred M. Roberts 2008-7-3 35686 Orange upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  UCR193780  Chenopodium murale A. C. Sanders, Fred M. Roberts 2008-7-3 35686 Orange Peninsular Range; Santa Ana Mtns., upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  CAS-BOT-BC255251  Chorizanthe staticoides P. C. Everett 1935-4-29 6711 Orange Santa Ana Canyon, 7/10 mile W of Esperanza 152 Comment
  CAS-BOT-BC255255  Chorizanthe staticoides John Thomas Howell 1927-6-8 2461 Orange Southern Puente Hills in the Santa Ana Canyon 228 Comment
  CAS-BOT-BC255256  Chorizanthe staticoides John Thomas Howell 1927-6-8 2455 Orange Southern Puente Hills in the Santa Ana Canyon 182 Comment
  RSA13173  Chorizanthe staticoides Percy C. Everett 1935-4-29 6711 Orange 7/10 of a mile west of Esperanza, Santa Ana canyon.. 152 Comment
  RSA17170  Chorizanthe staticoides Percy C. Everett 1935-4-29 6711 Orange 7/10 of a mile west of Esperanza, Santa Ana canyon.. 152 Comment
  RSA182  Chorizanthe staticoides J. T. Howell 1927-6-8 61 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA188  Chorizanthe staticoides J. T. Howell 1927-6-8 55 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA749998  Chorizanthe staticoides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35328 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  RSA751164  Chorizanthe staticoides D. E. Bramlet 2008-5-9 4265 Orange Ridgeline between the upper two tributaries of Wier Cyn. 1.2km east of S. Serrano Ave and 1.3km west of Gypsum Cyn. 330 Comment
  UCR194555  Chorizanthe staticoides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35328 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  RSA818  Cichorium intybus J. T. Howell 1927-10-29 786 Orange Bryant Ranch near Long Beach. 15 Comment
  IRVC9096  Cirsium brevistylum C. A. Taylor 1966-5-18 66 -116 Orange Santa Ana Canyon, Old Rancho Santa Ana Botanic Garden site; full sun on flats and slopes. Chino Hills Comment
  RSA2092  Cirsium brevistylum B. D. Stark 1931-5-23 2230 Orange Santa Ana river bottom, SW of Ranch Houses, Rancho Santa Ana 122 Comment
  POM352203  Cirsium occidentale var. californicum M. B. Dunkle 1933-5-30 3580 Orange Santa Ana Canyon. Comment
  CAS-BOT-BC285584  Cirsium occidentale var. occidentale John Thomas Howell 1927-6-6 2447 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  IRVC9122  Cirsium occidentale var. occidentale R. Yarnell 1966-4-13 74 Orange Santa Ana Canyon, old RSA Botanical Gardens site. Chino Hills Comment
  JEPS59220  Cirsium occidentale var. occidentale John Thomas Howell 1927-6-6 2447 Orange near, river bottom Rancho Santa Ana; Santa Ana River 152 Comment
  POM352202  Cirsium occidentale var. occidentale M. B. Dunkle 1933-5-30 3582 Orange Santa Ana Canyon Comment
  RSA752637  Cirsium vulgare Justin M. Wood, J. D. England 2009-7-27 1201 San Bernardino Chino Hills State Park. McDermont Spring. 351 Comment
  RSA752816  Cirsium vulgare A. C. Sanders, Fred M. Roberts 2008-8-7 36000 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UCR194997  Cirsium vulgare A. C. Sanders, Fred M. Roberts 2008-8-7 36000 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA0013962  Cistanthe monandra Fred M. Roberts, David E. Bramlet 2008-5-13 6954 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  RSA731913  Cistus creticus Fred M. Roberts, Sandy Leatherman 2007-11-27 6666 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  CAS-BOT-BC172419  Clarkia bottae Munz; Street; Williams 1919-5-3 2647 Orange Santa ana river Canyon Comment
  CAS-BOT-BC172420  Clarkia bottae John Thomas Howell 1927-6-17 2550 Orange Hills on north side of Santa Ana Canyon 152 Comment
  CAS-BOT-BC172421  Clarkia bottae C. L. Hitchcock 1928-5-5 49 Orange Mouth of Santa Ana Canyon 150 Comment
  POM153245  Clarkia bottae C. L. Hitchcock 1928-5-5 49 Orange Mouth of Santa Ana Canyon. 150 Comment
  POM6345  Clarkia bottae P. A. Munz, L. T. Street, G. Williams 1919-5-3 2647 Orange Santa Ana River Canyon. Comment
  RSA500  Clarkia bottae J. T. Howell 1927-6-17 155 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA734638  Clarkia bottae A. C. Sanders, Fred M. Roberts, Amber O Neal, D. E. Bramlet 2008-5-9 35307 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  UC373523  Clarkia bottae C. L. Hitchcock 1928-5-5 49 Orange mouth Santa Ana Canyon 150 Comment
  UCR192105  Clarkia bottae A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35307 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA493805  Clarkia dudleyana Jeri Hirshberg 1988-6-2 s.n. Orange Upper Gypsum Canyon. 274 Comment
  CAS-BOT-BC171987  Clarkia epilobioides Munz; Street; Williams 1919-5-3 2618 San Bernardino Santa Ana River Canyon Comment
  POM6391  Clarkia epilobioides P. A. Munz, L. T. Street, G. Williams 1919-5-3 2618 Orange Santa Ana River Canyon. Comment
  POM201140  Clarkia purpurea subsp. quadrivulnera C. L. Hitchcock 1933-6-1 4996 Orange 1/4 mi SW of Muddy Springs near Roundtop peak, Rancho Santa Ana. 427 Comment
  POM6351  Clarkia purpurea subsp. quadrivulnera P. A. Munz 1919-5-3 2669 Orange Santa Ana River Canyon. Comment
  UCR139447  Clarkia purpurea subsp. quadrivulnera E. R. Johnson 1933-6-1 4996 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden, 0.25 mi. SW of Muddy Springs near Roundtop Peak 427 Comment
  CAS-BOT-BC172351  Clarkia purpurea subsp. viminea Munz; Street; Williams 1919-5-3 2669 Orange Santa Ana River Canyon Comment
  RSA297  Clematis ligusticifolia J. T. Howell 1927-4-13 622 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA5332  Clematis ligusticifolia B. D. Stark 1933-6-3 s.n. Orange Rancho Santa Ana near pear orchard 122 Comment
  CAS-BOT-BC92807  Clematis pauciflora Munz; Street; Williams 1919-5-3 2651 Orange Santa Ana River Canon [Canyon]. Comment
  POM6423  Clematis pauciflora P. A. Munz, Street, Williams 1919-5-3 2665 Orange Santa Ana River Canyon. Comment
  POM6466  Clematis pauciflora P. A. Munz, L. T. Street, G. Williams 1919-5-3 2651 Orange Santa Ana River Canyon. Comment
  CDA5373  Conium maculatum D. McDonald 1957-7-1 Orange Yorba Linda. 0 Comment
  RSA653183  Convolvulus arvensis David Barrios 1991-5-1 16 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle., (117 deg. 45' 00'' +4 28 / 33 deg. 52' 37'' + 37 51.5). 365 Comment
  RSA735040  Convolvulus arvensis Scott D. White, Justin M. Wood, Jason Berkley 2008-4-8 11822 San Bernardino Chino Hills: Chino Hills State Park, northridge trail and vicinity. 488 Comment
  RSA557  Convolvulus simulans J. T. Howell 1928-2-26 s.n. Orange Bee Canyon, Rancho Santa Ana. 305 Comment
  RSA730987  Conyza bonariensis Fred M. Roberts 2006-11-15 6461 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
  RSA748269  Conyza bonariensis A. C. Sanders, Fred M. Roberts 2008-6-17 35512 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR193278  Conyza bonariensis A. C. Sanders, Fred M. Roberts 2008-6-17 35512 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  IRVC25164  Conyza canadensis Fred M. Roberts 1986-9-3 3141 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA749046  Conyza canadensis A. C. Sanders, Fred M. Roberts 2008-8-7 36008 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
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Dec 21 2010
  RSA835  Conyza canadensis J. T. Howell 1927-9-24 743 Orange Santa Ana Botany Garden 152 Comment
  UCR193774  Conyza floribunda A. C. Sanders, Fred M. Roberts 2008-7-3 35690 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
  RSA0084752  Cordylanthus rigidus A. C. Sanders, Joshua M. Brokaw 2008-5-28 35428 Orange Peninsular Range; Santa Ana Mtns.: upper Weir Canyon, along old dirt road west of Eastern Transportation Corridor, 1.65 mi. east of south end of Walnut Cyn Reservoir (Black Star Canyon 7.5' Q.) 372 Comment
  UCR193374  Cordylanthus rigidus A. C. Sanders, Joshua M. Brokaw 2008-5-28 35428 Orange Peninsular Range; Santa Ana Mtns., upper Weir Canyon, along old dirt road west of Eastern Transportation Corridor, 1.65 mi. east of south end of Walnut Cyn Reservoir 372 Comment
  RSA711  Cordylanthus rigidus subsp. setiger J. T. Howell 1927-7-29 518 Orange Near east boundary of Rancho Santa Ana. 213 Comment
  RSA731928  Cotula australis Fred M. Roberts, Sandra Leatherman 2007-11-27 6682 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  UCR193758  Cotula australis A. C. Sanders, Fred M. Roberts 2008-7-3 35712 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  CDA20829  Cotula coronopifolia P. Akers 2006-3-25 PA 3 -06 Orange Peninsular Ranges; Yorba Linda, N edge of Santa Ana River. S of La Palma Dr, 0.5-0.8 mi E of Yorba Linda Dr. 121 Comment
  RSA348  Crassula connata var. erectoides J. T. Howell 1928-2-7 s.n. Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UC219257  Crocanthemum scoparium var. vulgare Munz and Johnston 1922-5-18 5307 Orange Santa Ana River Canyon, in a side canyon Santa Ana River Canyon 274 Comment
  OBI30078  Croton californicus L. Fountain 1966-4-1 72 Orange Near Rancho Santa Ana, at the end of Orangethorpe Ave Comment
  RSA0011253  Croton californicus Fred M. Roberts, Sandy Leatherman 2007-11-27 6670 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  RSA427  Croton californicus J. T. Howell 1927-6-6 47 Orange Santa Ana River bottom, Rancho Santa Ana. 152 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
  UCR193030  Croton californicus A. C. Sanders, Fred M. Roberts 2008-6-17 35518 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA640  Cryptantha clevelandii J. T. Howell 1928-2-25 837 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA641  Cryptantha clevelandii J. T. Howell 1927-7-22 460 Orange North of Botany Garden, Rancho Santa Ana. 274 Comment
  RSA643  Cryptantha clevelandii J. T. Howell 1928-4-7 897 Orange Bee Canon, Rancho Santa Ana 152 Comment
  JEPS22385  Cryptantha intermedia John Thomas Howell 1927-6-5 2435 Orange Santa Ana Canyon 152 Comment
  UCR192450  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-3-25 34580 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
  UCR192499  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
  POM6631  Cryptantha microstachys P. A. Munz, L. T. Street, G. Williams 1919-5-3 2620 Orange Santa Ana River Canyon. Comment
  RSA749491  Cryptantha microstachys Fred M. Roberts, Linda Farley 2008-3-28 6825 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  UCR192462  Cryptantha microstachys A. C. Sanders, Fred M. Roberts 2008-3-25 34530 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 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
  RSA487  Cucurbita foetidissima J. T. Howell 1927-7-28 504 Orange Near ranch houses, Rancho Santa Ana. 152 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
  POM12369  Cupressus forbesii Wm M. Pierce 1922-3-10 s.n. Orange Santa Ana Mountains. South of Santa Ana River. side of small canyon Comment
  POM17861  Cupressus forbesii Philip A. Munz 1923-7-8 7327 Orange Santa Ana River Canyon, 3 miles from county line. Comment
  RSA12376  Cupressus forbesii C. B. Wolf, E. R. Johnson 1934-3-21 5578 Orange Santa Ana River, Santa Ana Canyon, 1/2 mi. S.W. of Mexican Houses, Rancho Santa Ana. Altitude 400 ft. 122 Comment
  RSA262123  Cupressus forbesii E. W. Lathrop 1976-11-17 7406 Orange 4 miles west of Corona in Gypsum Canyon. North slope of Sierra Peak. 609 Comment
  CAS-BOT-BC224408  Cuscuta californica John Thomas Howell 1927-6-3 2420 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  POM17859  Cuscuta californica P. A. Munz 1923-7-8 7330 Orange Santa Ana River Canyon Comment
  RSA570  Cuscuta californica J. T. Howell 1927-6-3 24 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA648945  Cuscuta californica Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 74 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  POM201678  Cuscuta ceanothi L. M. Booth 826 Orange Santa Ana Canyon. Comment
  POM6459  Cuscuta ceanothi P. A. Munz, Street, Williams 1919-5-3 2675 Orange Santa Ana River Canyon. Comment
  RSA38192  Cuscuta ceanothi P. A. Munz 1946-10-2 11555 Orange Santa Ana River bottom, Rancho Santa Ana. 122 Comment
  RSA571  Cuscuta ceanothi J. T. Howell 1927-7-21 455 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  CDA25796  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35320 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, along fire line/bulldozer cut, c. 1.5 miles east of Walnut Canyon Reservoir. Comment
  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
  RSA751790  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-7-3 35688 Orange Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  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
  SD43529  Cuscuta subinclusa Philip A. Munz 1946-10-2 11555 Orange Santa Ana River bottom, Rancho Santa Ana. Comment
  UCR193783  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-7-3 35679 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  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
  UCR194551  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35320 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA266  Cycloloma atriplicifolium J. T. Howell 1928-5-13 968 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC56704  Cylindropuntia californica John Thomas Howell 1927-6-22 2575 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  CAS-BOT-BC190298  Cynodon dactylon Ira L. Wiggins 1965-11-6 20353 Orange Kramer Oil Estates, near well No. 14, near end of county road to Rancho Santa Ana. Comment
  RSA0069227  Cyperus difformis Fred M. Roberts 2008-9-3 7082 Orange Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.7 km W Gypsum Cyn. bridge, south of La Palma Ave. 107 Comment
  POM201509  Cyperus eragrostis L. M. Booth 836 Orange Santa Ana Canyon. Comment
  RSA21058  Cyperus eragrostis Ramon Valverde 1938-8-4 9446 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA539371  Cyperus eragrostis Fred M. Roberts, D. Willick 1988-9-16 4136 Orange Peralata Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.0 kilmeter N Robbers Peak. 180 Comment
  OBI17023  Cyperus erythrorhizos Carl B. Wolf 1937-9-23 9366 Orange Rancho Santa Ana, Santa Ana Cyn 122 Comment
  SD42280  Cyperus erythrorhizos C. B. Wolf 1937-9-23 9366 Orange Rancho Santa Ana; Santa Ana Canyon; wet sandy soil, edge of canal; new to Ranch (Rancho Santa Ana Botanic Garden). 121 Comment
  UC774605  Cyperus erythrorhizos C. B. Wolf 1937-9-23 9366 Orange Rancho Santa Ana Santa Ana Canyon, Rancho Santa Ana 121 Comment
  CAS-BOT-BC114322  Cyperus esculentus John Thomas Howell 1927-7-18 2794 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  RSA78  Cyperus esculentus J. T. Howell 1927-7-15 408 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  RSA734965  Cyperus involucratus A. C. Sanders, Fred M. Roberts 2008-7-3 35702 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA751520  Cyperus involucratus A. C. Sanders, Fred M. Roberts 2008-8-7 35999 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UCR193771  Cyperus involucratus A. C. Sanders, Fred M. Roberts 2008-7-3 35702 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR194990  Cyperus involucratus A. C. Sanders, Fred M. Roberts 2008-8-7 35999 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 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
  RSA79  Cyperus laevigatus J. T. Howell 1927-7-15 407 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  UC1116257  Cyperus laevigatus F. R. Fosberg 1931-6-19 746 Orange Puente Hills, Carbon Canyon Comment
  CAS-BOT-BC113820  Cyperus niger var. capitatus John Thomas Howell 1927-7-19 2800 Orange Santa Ana River Bottom, Santa Ana Canyon. 152 Comment
  RSA77  Cyperus niger var. capitatus J. T. Howell 1927-7-19 439 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR207811  Cyperus odoratus O. F. Clarke 2004-8-23 s.n. Orange Santa Ana River Valley, Yorba Linda, Yorba Regional Park, Santa Ana River bank near intersection of E. La Palma Ave. and Fairmont Blvd. 91 Comment
  RSA17044  Datura wrightii Carl B. Wolf 1936-1-13 7694 Orange Santa Ana Canyon, Rancho Santa Ana, along R. R. right of way east of Ranch Houses. 137 Comment
  RSA647957  Datura wrightii Mark Breidenbaugh, Caralisa Breidenbaush 1992-5-1 15 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  RSA695  Datura wrightii J. T. Howell 1927-7-5 264 Orange Near ranch Lowers, Rancho Santa Ana. Comment
  RSA748259  Datura wrightii A. C. Sanders, Fred M. Roberts 2008-6-17 35520 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  SD236432  Datura wrightii A. C. Sanders, Fred M. Roberts 2008-6-17 35520 Orange Peninsular Range; Santa Ana Mtns.: middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 224 Comment
  UCR16393  Datura wrightii Kenneth Hibberd 1966-4-30 660430- 4 Orange 0.5 mi S on Mohler Rd. in the Santa Ana Canyon, 5 mi west of Riverside Co. 244 Comment
  UCR193028  Datura wrightii A. C. Sanders, Fred M. Roberts 2008-6-17 35520 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  POM6363  Daucus pusillus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2666 Orange Santa Ana River Canyon. Comment
  POM6364  Daucus pusillus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2645 Orange Santa Ana River Canyon. Comment
  RSA522  Daucus pusillus J. T. Howell 1927-6-8 57 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR192465  Daucus pusillus A. C. Sanders, Fred M. Roberts 2008-3-25 34533 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC29253  Deinandra fasciculata Kay Stockwell 1999-7-13 s.n. Orange Cannon Road (extension of Imperial Hwy) at Goldenrod St. Peralta Hills 152 Comment
  SD236197  Deinandra fasciculata A. C. Sanders, Fred M. Roberts, Amber ONeal 2008-5-9 35279 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 299 Comment
  CAS-BOT-BC9091  Delphinium cardinale B. D. Stark 1931-6-6 2231 Orange Rancho Santa Ana 137 Comment
  RSA6131  Delphinium cardinale E. R. Johnson 1932-6-14 s.n. Orange Edge of Rancho Santa Ana, Santa Ana Canyon. Alt. 450 ft. 137 Comment
  UC527601  Delphinium cardinale B. D. Stark 1931-6-6 2231 Orange Rancho Santa Ana 137 Comment
  RSA652150  Dendromecon rigida J. Bruce Smiley 1940-4-28 s.n. Orange Santa Ana Canyon (mouth). 701 Comment
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Nov 6 2013
  RSA2091  Dendromecon rigida subsp. rigida Stark 1931-5-23 2229 Orange Santa Ana River Bottom; sw of Ranch houses; Rancho Santa Ana Comment
  RSA3133  Descurainia pinnata subsp. menziesii C. B. Wolf 1932-2-26 2663 Orange Native to area near Prunus ilicifolia bed, Rancho Sant Ana Botanic Garden. 137 Comment
  RSA335  Descurainia pinnata subsp. menziesii J. T. Howell 1928-2-7 827 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA2093  Dicentra ochroleuca B. D. Stark 1931-5-23 2228 Orange Santa Ana river bottom, SW of Ranch Houses, Rancho Santa Ana 122 Comment
  UCR192475  Dichelostemma capitatum A. C. Sanders, Fred M. Roberts 2008-3-25 34543 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA122  Dichelostemma capitatum subsp. capitatum J. T. Howell 1928-2-7 812 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA114378  Dichelostemma pulchellum var. pulchellum G. R. Campbell 1955-12-6 21492 Orange Nursery Seedlings at Botanic Garden, Prop. No. 6310, from seed coll. by E. K. Balls, May 28, 1949, from plants native to old Botanic Garden site, Santa Ana Canyon 183 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
  UCR140932  Dinebra retroflexa O. F. Clarke, D. Svehla 2004-8-23 s.n. Orange Santa Ana River Valley, Yorba Linda, Yorba Regional Park, Santa Ana River bank near intersection of E. La Palma Ave. and Fairmont Blvd. 91 Comment
  RSA0047115  Dinebra retroflexa var. retroflexa O. F. Clarke, D. Svehla 2004-8-23 s.n. Orange Santa Ana River Valley: Yorba Linda, Yorba Regional Park, Santa Ana River bank near intersection of E. La Palma Ave. and Fairmont Blvd. 91 Comment
  CAS-BOT-BC151044  Diplacus brevipes John Thomas Howell 1927-6-5 2429 Orange Southern Puente Hills in the Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC152058  Diplacus longiflorus John Thomas Howell 1927-6-1 2401 Orange Southern Puente Hills at teh Santa Ana Canyon 152 Comment
  RSA0028695  Diplacus longiflorus Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 45 Orange 500 ft. west of Chino Hills State Park Boundary. 198 Comment
  CAS-BOT-BC43551  Diplotaxis muralis Peter H. Raven 1962-3-27 16992 Orange Site of Rancho Santa Ana, near Anaheim. 182 Comment
  UC1215212  Diplotaxis muralis Peter H. Raven 1962-3-27 16992 Orange near Anaheim (Rancho Santa Ana); Rancho Santa Ana 182 Comment
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Mar 18 2011
  CAS-BOT-BC195673  Distichlis spicata John Thomas Howell 1927-6-17 2552 Orange Hills on north side of Santa Ana Canon [Canyon] 152 Comment
  SD27980  Draba cuneifolia Carl B. Wolf 1932-2-17 2661 Orange Rancho Santa Ana Botanic Garden, just west of Adenostoma sparsifolum Bed. 600 Comment
  CAS-BOT-BC41654  Draba cuneifolia var. cuneifolia Carl B. Wolf 1932-2-17 2661 Orange Rancho Santa Ana Botanic Garden, just west Adensotoma sparsifolium bed. 182 Comment
  CAS-BOT-BC427990  Dudleya caespitosa John Thomas Howell 1927-6-9 2472 Orange North side Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC427991  Dudleya caespitosa John Thomas Howell 1927-6-9 2472 Orange N. side of Santa Ana Canyon 152 Comment
  RSA50298  Dudleya lanceolata E. K. Balls 1949-5-21 13470 Orange spontaneous in Rancho Santa Ana Botanic Garden (original site), hillside east of Cactus Garden, Santa Ana River Canyon. 198 Comment
  CAS-BOT-BC109672  Dudleya multicaulis John Thomas Howell 1927-6-1 2409 Orange Southern Puente Hills in the Santa Ana Canon [Canyon]. 152 Comment
  JEPS50031  Dudleya multicaulis Frank W. Peirson 3071 Orange Santa Ana Mountains Santa Ana Canyon; , Santa Ana Canyon 121 Comment
  RSA397818  Dudleya multicaulis F. W. Peirson 1922-5-18 3071 Orange Santa Ana River. 122 Comment
  RSA584711  Dudleya multicaulis Fred M. Roberts 1989-6-7 4377 Orange Santa Ana Mountains: Upper Gypsum Canyon along ridge between Gypsum and Blind Canyon, c. 6.3 km WSW Sierra Peak. 411 Comment
  RSA84220  Dudleya multicaulis F. W. Peirson 1922-5-18 3071 Orange Santa Ana River Canyon 152 Comment
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Apr 1 2009
  UCR193275  Dudleya multicaulis A. C. Sanders, Fred M. Roberts 2008-6-17 35509 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UCR22358  Dudleya multicaulis P. Clark 1979-1 s.n. Orange Santa Ana Canyon, 50 yards west of the old Santa Ana Canyon Road, and 2 mi. south of the Riverside County line. Comment
  RSA13068  Dudleya pulverulenta P. C. Everett 1935-7-5 2361 Orange Rancho Santa Ana, Santa Ana Canyon hill N of Grapefruit orchard 152 Comment
  RSA13069  Dudleya pulverulenta P. C. Everett 1935-7-5 2361 Orange Rancho Santa Ana, Santa Ana Canyon hill N of Grapefruit orchard 152 Comment
  RSA345  Dudleya pulverulenta J. T. Howell 1927-7-16 416 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC197032  Echinochloa colona E. R. Johnson 1936-7-10 8104 Orange Rancho Santa Ana, Santa Ana Canyon Vegetable Garden 121 Comment
  CAS-BOT-BC197034  Echinochloa colona E. R. Johnson 1936-7-10 8104 Orange Rancho Santa Ana, Santa Ana Canyon Vegetable Garden 121 Comment
  RSA17265  Echinochloa colona C. B. Wolf, E. R. Johnson 1936-7-10 8104 Orange Rancho Santa Ana, Santa Ana Canyon., [33 deg 51'30N, 117 deg 47'W] 122 Comment
  RSA731947  Echinochloa colona Fred M. Roberts, Sandy Leatherman 2007-11-27 6688 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA21041  Echinochloa crus-galli E. R. Johnson 1938-8-22 9451 Orange Rancho Santa Ana, Santa Ana Canyon; South of Picnic Grounds 122 Comment
  RSA49  Echinochloa crus-galli Thos Howell 1927-10-29 787 Orange Near Cypress Station. 30 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
  UCR207562  Echinochloa crus-galli O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  UCR207803  Echinochloa crus-pavonis O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  UCR240255  Echinochloa crus-pavonis R. E. Riefner Jr. 2006-9-16 s.n. Orange Yorba Linda, north of Chapman Ave. c. 1 mile along floodplain of Santa Ana River 98 Comment
  RSA794758  Echinodorus berteroi Justin M. Wood, Dustin M. Ray 2010-10-1 2775 Orange Santa Ana Canyon: Santa Ana River plus/minus 1 mi downstream of Gypsum Canyon Bridge, just upstream of large commercial development. Near drain outflow from Flood Control Levee on south side of channel. 110 Comment
  RSA151075  Eclipta prostrata Peter H. Raven 1961-10-15 16859 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  UCR193790  Eleocharis A. C. Sanders, Fred M. Roberts 2008-7-3 35701 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA86  Eleocharis geniculata J. T. Howell 1927-7-18 422 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC113331  Eleocharis montevidensis John Thomas Howell 1927-7-6 2660 Orange Wet soil of Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  RSA21065  Eleocharis montevidensis Ramon Valverde 1938-8-4 9439 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA750923  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts 2008-7-3 35701 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  POM6352  Eleocharis montevidensis var. montevidensis Phillip A. Munz, L. T. Street, G. Williams 1919-5-3 2658 Orange Santa Ana River Canyon. Comment
  RSA82  Eleocharis montevidensis var. montevidensis J. T. Howell 1927-7-6 279 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  CAS-BOT-BC112162  Eleocharis radicans John Thomas Howell 1927-7-6 2659 Orange Wet soil in Santa Ana River bottom, Santa Ana Canon 152 Comment
  RSA84  Eleocharis radicans J. T. Howell 1927-7-6 276 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  CAS-BOT-BC112211  Eleocharis rostellata John Thomas Howell 1927-7-21 2807 Orange Marsh, Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA85  Eleocharis rostellata J. T. Howell 1927-7-21 449 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA723496  Eleusine coracana subsp. africana R. E. Riefner 2005-10-5 5 -718 Orange City of Yorba Linda, near Horseshoe Bend along the Santa Ana River. 102 Comment
  RSA735124  Eleusine coracana subsp. africana R. E. Riefner 2005-10-5 5 -718 Orange City of Yorba Linda, near Horseshoe Bend along the Santa Ana River. 102 Comment
  UCR236681  Eleusine indica Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7103 Orange Peninsular Ranges, Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana River, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river 87 Comment
  UCR193540  Elymus condensatus A. C. Sanders, Fred M. Roberts 2008-7-3 35666 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA34  Elymus glaucus J. T. Howell 1927-6-17 164 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC206789  Elymus glaucus subsp. glaucus John Thomas Howell 1927-6-17 2553 Orange Hills on north side of Santa Ana Canyon. 152 Comment
  CAS-BOT-BC234138  Elymus multisetus John Thomas Howell 1927-6-8 2453 Orange Southern Puente Hills in the Santa Ana Canyon 152 Comment
  RSA65  Elymus multisetus J. T. Howell 1927-6-8 53 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA610  Emmenanthe penduliflora J. T. Howell 1927-6-9 72 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA734990  Emmenanthe penduliflora A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35280 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR192079  Emmenanthe penduliflora A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35280 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  CAS-BOT-BC131229  Encelia californica John Thomas Howell 1927-6-1 2406 Orange Southern Puente Hills in the Santa Ana [Canon] Canyon 152 Comment
  POM356655  Encelia californica E. Crow 1929-2-22 162 Orange Gypsum Canyon, Snata Ana Mts, S of Corona Comment
  RSA0043349  Encelia californica David Barrios 1991-5-8 30 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  RSA647887  Encelia californica Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 61 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  UCR192476  Encelia californica A. C. Sanders, Fred M. Roberts 2008-3-25 34544 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA751891  Epilobium canum Justin M. Wood, Joy England 2009-7-27 1220 San Bernardino Chino Hills: Chino Hills State Park, northridge trail and vicinity. 488 Comment
  CAS-BOT-BC166349  Epilobium canum subsp. canum John Thomas Howell 1927-7-28 2868 Orange Hills on n. side of Santa Ana [Canon] Canyon 182 Comment
  RSA0074190  Epilobium ciliatum Justin M. Wood, Joy England 2009-7-27 1205 San Bernardino Chino Hills: Chino Hills State Park. McDermont Spring. 351 Comment
  RSA0074191  Epilobium ciliatum Justin M. Wood, Joy England 2009-7-27 1206 San Bernardino Chino Hills: Chino Hills State Park. McDermont Spring. 351 Comment
  UCR182903  Epilobium ciliatum Pat Akers 2006-3-25 PA4 06 Orange Yorba Linda. Santa Ana River on a large (300-400 ft) sandy/cobbly flat. south of La Palma Dr, 0.6-0.9 mi. east of Yorba Linda Dr 122 Comment
  CDA20830  Epilobium ciliatum subsp. ciliatum P. Akers 2006-3-25 PA 4 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River, south of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  RSA494  Epilobium ciliatum subsp. ciliatum J. T. Howell 1927-7-19 440 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA495  Epilobium ciliatum subsp. ciliatum J. T. Howell 1927-10-29 776 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA496  Epilobium ciliatum subsp. ciliatum J. T. Howell 1927-7-5 267 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA731008  Epilobium ciliatum subsp. ciliatum Fred M. Roberts 2006-11-15 6471 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  RSA731933  Epilobium ciliatum subsp. watsonii Fred M. Roberts, Sandy Leatherman 2007-11-27 6677 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  CAS-BOT-BC57384  Equisetum laevigatum John Thomas Howell 1927-6-6 2441 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA12  Equisetum laevigatum J. T. Howell 1927-6-6 42 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA21057  Equisetum laevigatum Ramon Valverde 1938-8-4 9447 or 3235 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA730989  Eragrostis mexicana subsp. virescens Fred M. Roberts 2006-11-15 6463 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
  UCR236675  Eragrostis pilosa Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7105 Orange Peninsular Ranges, Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana River, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river 87 Comment
  JEPS52502  Eremocarpus setiger John Thomas Howell 1927-9-24 3108 Orange Rancho Santa Ana Santa Ana Canyon 152 Comment
  RSA430  Eremocarpus setiger J. T. Howell 1927-9-24 742 Orange Santa Ana Botany Garden 152 Comment
  GH385094  Eriastrum densifolium subsp. sanctorum J. T. Howell 1927-8-13 2985 Unknown Santa Ana Canyon 152 Comment
  LA106815  Eriastrum densifolium subsp. sanctorum John Thomas Howell; 1927-8-13 2985 Orange Santa Ana Canyon Comment
  JEPS69115  Eriastrum sapphirinum John Thomas Howell 1927-6-9 2471 Orange Santa Ana Canyon Rancho Santa Ana 213 Comment
  RSA0122937  Eriastrum sapphirinum A. C. Sanders, Fred M. Roberts 2008-6-17 35505 Orange Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor. 400 Comment
  UC908507  Eriastrum sapphirinum John Thomas Howell 1927-6-9 2471 Orange Santa Ana Canyon Rancho Santa Ana 213 Comment
  UCR193057  Eriastrum sapphirinum A. C. Sanders, Fred M. Roberts 2008-6-17 35505 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA264442  Ericameria brachylepis C. W. Tilforth 1976-10-21 1227 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana. Comment
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Mar 18 2011
  CAS-BOT-BC286881  Ericameria ericoides John Thomas Howell 1927-9-24 3114 Orange Hills on n. side of Santa Ana Canon [Canyon] 213 Comment
  UC729926  Ericameria nauseosa var. oreophila Carl B. Wolf 1932-7-18 Riverside Rancho Sanata Ana Botanic Garden Comment
  SD28142  Ericameria pachylepis Carl B. Wolf 1931-10-30 2943 Orange Rancho Santa Ana. 206 Comment
  CAS-BOT-BC299499  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2943 Orange Rancho Santa Ana, Santa Ana Canyon 207 Comment
  CAS-BOT-BC299500  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2944 Orange Rancho Santa Ana, Santa Ana Canyon 207 Comment
  CAS-BOT-BC299501  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2708 Orange Rancho Santa Ana Botanical Garden 207 Comment
  CAS-BOT-BC299502  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 1363 Orange North side of Santa Ana Canyon 207 Comment
  JEPS19147  Ericameria palmeri var. pachylepis John Thomas Howell 1927-9-24 3114 Orange Santa Ana Canon Rancho Santa Ana, Santa Ana Canon 152 Comment
  OBI5705  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2504 Orange Hiils on N side of Santa Ana cyn. (Rancho Santa Ana Botanic Garden-ner marker no 14E 9) 207 Comment
  POM201508  Ericameria palmeri var. pachylepis L. M. Booth 811 Orange Santa Ana Canyon Comment
  POM257106  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA16663  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA16664  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA16676  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA264439  Ericameria palmeri var. pachylepis C. W. Tilforth 1976-10-21 1228 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana. Comment
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Mar 18 2011
  RSA2886  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA29367  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA54171  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA638191  Ericameria palmeri var. pachylepis S. White 1998-10-15 7186 Los Angeles Yorba Linda: 1/2 mile S Telegraph Canyon between Ohio St. and Fairmont. 152 Comment
  RSA751525  Ericameria palmeri var. pachylepis A. C. Sanders, Fred M. Roberts 2008-8-7 35996 Orange Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  RSA843  Ericameria palmeri var. pachylepis J. T. Howell 1927-9-24 748 Orange Santa Ana Botany Garden 152 Comment
  UCR194993  Ericameria palmeri var. pachylepis A. C. Sanders, Fred M. Roberts 2008-8-7 35996 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  CAS-BOT-BC293091  Ericameria pinifolia John Thomas Howell 1927-10-23 3172 Orange On n. side of Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC293092  Ericameria pinifolia John Thomas Howell 1927-10-22 3158 Orange On n. side of Santa Ana Canon [Canyon] 213 Comment
  JEPS19148  Ericameria pinifolia John Thomas Howell 1927-10-23 3172 Orange Rancho Santa Ana Santa Ana Canyon, Rancho Santa Ana 152 Comment
  UCR195001  Erigeron canadensis A. C. Sanders, Fred M. Roberts 2008-8-7 36008 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  CAS-BOT-BC296212  Erigeron foliosus var. foliosus John Thomas Howell 1927-6-1 2405 Orange Southern Puente Hills in teh SAnta Ana Canyon Comment
  RSA0013964  Erigeron foliosus var. foliosus Fred M. Roberts, David E. Bramlet 2008-5-13 6956 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  RSA735016  Erigeron foliosus var. foliosus Scott D. White, Justin M. Wood 2008-4-9 11836 San Bernardino Chino Hills: Chino Hills State Park, in and adjacent to the northern park boundary. To the west and southwest of the main park entrance. 366 Comment
  IRVC9107  Erigeron foliosus var. stenophyllus R. Seibel 1966-5-18 132 Orange Old Rancho Santa Ana Botanical Garden at end of Orangethorpe Ave. Chino Hills Comment
  POM357495  Erigeron foliosus var. stenophyllus M. B. Dunkle 1933-5-30 3578 Orange Santa Ana Canyon Comment
  POM6358  Erigeron foliosus var. stenophyllus P. A. Munz 1919-5-3 2656 Orange Santa Ana River Canyon. Comment
  RSA5322  Eriodictyon crassifolium B. D. Stark 1932-12-30 4473 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  UC219277  Eriodictyon crassifolium P. A. Munz and I. M. Johnston 1921-5-18 5316 Orange Santa Ana River Canyon; abundant in bed of side canyon 243 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
  UCR192086  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
  RSA5321  Eriodictyon trichocalyx B. D. Stark 1932-12-30 4474 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  POM147617  Eriogonum elongatum F. M. Reed 1927-9-19 5473 Orange Santa Ana Canon Highway on Sulphur Slide Summit. Comment
  RSA211  Eriogonum elongatum J. T. Howell 1927-9-24 741 Orange Santa Ana Botany Garden 152 Comment
  UCR193801  Eriogonum elongatum A. C. Sanders, Fred M. Roberts 2008-7-3 35675 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  CAS-BOT-BC249758  Eriogonum elongatum var. elongatum John Thomas Howell 1927-9-24 3107 Orange Hills on n. side of Santa Ana Canon [Canyon] 182 Comment
  RSA734991  Eriogonum fasciculatum subsp. foliolosum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35286 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR192100  Eriogonum fasciculatum subsp. foliolosum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35286 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  CAS-BOT-BC249943  Eriogonum fasciculatum var. foliolosum Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canon [Canyon] Comment
  CAS-BOT-BC249946  Eriogonum fasciculatum var. foliolosum John Thomas Howell 1927-6-1 2407 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC249948  Eriogonum fasciculatum var. foliolosum Philip A. Munz 1946-8-25 11530 Orange North of Assembly Hall, Rancho Santa Ana Botanic Garden Comment
  RSA214  Eriogonum fasciculatum var. foliolosum J. T. Howell 1927-7-24 474 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  RSA215  Eriogonum fasciculatum var. foliolosum J. T. Howell 1927-7-24 475 Orange Santa Ana River bottom near Rancho Santa Ana. 152 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
  UCSB41761  Eriogonum fasciculatum var. foliolosum Walker, Richard 1966-5-15 Orange On south road embankment of Esperanza Ave. about 3 mi. east of Imperial Hwy. east of state landmark of Yorba Hacienda Site. 30 Comment
  CLARK-A1528-3648  Eriogonum giganteum John C. Roos, Lucille Roos 1950-9-25 4992 Orange Santa Ana Canyon Comment
  CAS-BOT-BC253481  Eriogonum gracile John Thomas Howell 1927-7-16 2781 Orange Santa Ana Canyon 152 Comment
  SBBG62090  Eriogonum gracile J. T. Howell 1927-7-16 2791 Orange N side of Santa Ana Cyn 152 Comment
  RSA393245  Eriogonum gracile var. gracile J. T. Howell 1927-7-16 2781 Orange Hills on N side of Santa Ana Canyon. 152 Comment
  CAS-BOT-BC263016  Eriogonum thurberi P. C. Everett 1935-5-17 6866 Orange Rancho Santa Ana, Santa Ana Canyon 1/4 mi. So. of Orange County Plant Sanctuary 121 Comment
  CAS-BOT-BC263018  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange Rancho Santa Ana, Santa Ana Canyon river bottom S. of Walnut Grove 121 Comment
  CAS-BOT-BC263019  Eriogonum thurberi John Thomas Howell 1927-7-24 2820 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC263020  Eriogonum thurberi John Thomas Howell 1927-6-6 2452 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  RSA13107  Eriogonum thurberi Percy C. Everett 1935-5-17 6866 Orange Rancho Santa Ana, Santa Ana Canyon, 1/4 mi. S of Orange County Plant Sanctuary. 122 Comment
  RSA236  Eriogonum thurberi J. T. Howell 1927-7-24 462 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  RSA237  Eriogonum thurberi J. T. Howell 1927-6-6 52 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA6141  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange Santa Ana River bottom. Rancho Santa Ana south of the Walnut Grove. 122 Comment
  SD40736  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange Rancho Santa Ana, Santa Ana Canyon river bottom S. of Walnut Grove 121 Comment
  UC912801  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange river bottom s Walnut Grove; Rancho Santa Ana, Santa Ana Canyon 121 Comment
  CAS-BOT-BC297328  Eriophyllum confertiflorum John Thomas Howell 1927-6-1 2402 Orange Southern Puente Hills at the Santa Ana Canon 152 Comment
  RSA5331  Eriophyllum confertiflorum B. D. Stark 1933-1-3 4483 Orange Rancho Santa Ana near pear orchard. 122 Comment
  RSA734656  Eriophyllum confertiflorum A. C. Sanders, Fred M. Roberts, A. O'Neal, David E. Bramlet 2008-5-9 35316 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  RSA739703  Eriophyllum confertiflorum A. C. Sanders, Fred M. Roberts 2008-7-3 35667 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  SEINET2051091 Image available Eriophyllum confertiflorum B. Pitzer 1987-4-24 504 Orange Santa Ana River at Gypsum Canyon, ca. .5 mi. N of Hwy 91. 113 Comment
  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
  UCR193541  Eriophyllum confertiflorum A. C. Sanders, Fred M. Roberts 2008-7-3 35667 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR49768  Eriophyllum confertiflorum B. G. Pitzer 1987-4-24 0504 Orange Santa Ana Mtns, Santa Ana River at Gypsum Canyon, c. 0.5 mi. north of Hwy 91. 113 Comment
  SBBG87346  Eriophyllum confertiflorum var. confertiflorum B. Pitzer 1987-4-24 504 Orange Santa Ana River at Gypsum Cyn, ca. 0.5 mi N of St Hwy 91 112 Comment
  RSA735041  Erodium botrys Scott D. White, Justin M. Wood, Jason Berkley 2008-4-8 11823 San Bernardino Chino Hills: Chino Hills State Park, northridge trail and vicinity. 488 Comment
  UCR199690  Erodium botrys Scott D. White, Justin Wood, Jason Berkley 2008-4-8 11823 San Bernardino Chino Hills, Chino Hills State Park, northridge trail and vicinity 488 Comment
  RSA0034727  Erodium cicutarium David Barrios 1991-5-1 6 Orange Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA653187  Erodium cicutarium David Barrios 1991-5-1 6 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle. 366 Comment
  UCR192496  Erodium cicutarium A. C. Sanders, Fred M. Roberts 2008-3-25 34564 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR192488  Erodium moschatum A. C. Sanders, Fred M. Roberts 2008-3-25 34555 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA642641  Eryngium aristulatum var. parishii J. E. Harrison 1999-5-19 502 San Diego South Carlsbad, n. of Poinsettia Blvd., e. of AT&SF railroad tracks, and w. of Avenida Encinas. 15 Comment
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Aug 31 2018
  RSA651367  Erysimum capitatum Bob Cochrane 1948-5-9 s.n. Orange Found in hills back of Yorba Linda. Comment
  CDA25634  Eschscholzia californica A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35308 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, along fire line/bulldozer cut, c. 1.5 miles east of Walnut Canyon Reservoir. Comment
  RSA734963  Eschscholzia californica A. C. Sanders, Fred M. Roberts, A. O'Neal 2008-5-9 35308 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  UCR192107  Eschscholzia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35308 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA312  Eschscholzia californica var. peninsularis J. T. Howell 1927-6-22 194 Orange Botany Garden, Rancho Santa Ana. Comment
  RSA0010840  Eucalyptus camaldulensis Fred M. Roberts, Sandy Leatherman 2007-11-27 6673 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  POM6266  Eucrypta chrysanthemifolia P. A. Munz, Street, Williams 1919-5-3 2673 Orange Santa Ana River Canyon. Comment
  RSA609  Eucrypta chrysanthemifolia J. T. Howell 1927-6-21 180 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR192463  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-3-25 34531 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  JEPS1722  Eucrypta chrysanthemifolia var. chrysanthemifolia John Thomas Howell 1927-6-21 2566 Orange Rancho Santa Ana; Santa Ana Canyon 152 Comment
  UC421675  Eucrypta chrysanthemifolia var. chrysanthemifolia John Thomas Howell 1927-6-21 2566 Orange Santa Ana Canyon Comment
  IRVC25150  Euphorbia albomarginata Fred M. Roberts 1986-9-3 3134 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA735021  Euphorbia albomarginata Scott D. White, Justin M. Wood 2008-4-9 11841 San Bernardino Chino Hills: Chino Hills State Park, in and adjacent to the northern park boundary. To the west and southwest of the main park entrance. 366 Comment
  UCR199688  Euphorbia albomarginata Scott D. White, Justin Wood 2008-4-9 11841 San Bernardino Chino Hills, Chino Hills State Park, in and adjacent to the northern park boundary, to the west and southwest of the main park entrance 512 Comment
  IRVC25153  Euphorbia maculata Fred M. Roberts 1986-9-3 3133 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  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
  UCR192492  Euphorbia polycarpa A. C. Sanders, Fred M. Roberts 2008-3-25 34560 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR193788B  Euphorbia polycarpa A. C. Sanders, Fred M. Roberts 2008-7-3 35692 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
  RSA0018988  Euphorbia serpens Oscar F. Clarke 2004-8-23 s.n. Orange Santa Ana River Valley: Yorba Linda, Yorba Regional Park, Santa Ana River bank near intersection of E. La Palma Ave. and Fairmont Blvd. 91 Comment
  UCD170890  Euphorbia serpens O. F. Clarke 2004-8-23 s.n. Orange Santa Ana River Valley, Yorba Linda, Yorba Regional Park, Santa Ana River bank near intersection of E. La Palma Ave. and Fairmont Blvd. 91 Comment
  UCR239866  Euphorbia serpens O. F. Clarke 2004-8-23 s.n. Orange Santa Ana River Valley, Yorba Linda, Yorba Regional Park, Santa Ana River bank near intersection of E. La Palma Ave. and Fairmont Blvd. 91 Comment
  RSA431  Euphorbia spathulata J. T. Howell 1928-4-15 923 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA70544  Euphorbia spathulata F. W. Peirson 1922-5-18 3060 Orange Santa Ana River. 122 Comment
  GH402412  Eustoma exaltatum P. C. Everett 1936-9-29 8275 Unknown Rancho Santa Ana, Santa Ana Canyon 121 Comment
  GH402415  Eustoma exaltatum J. T. Howell 1927-9-24 3115 Unknown Santa Ana Canyon 152 Comment
  JEPS46997  Eustoma exaltatum John Thomas Howell 1927-9-24 3115 Orange near Peralta sta. (Santa Ana River bottom, Rancho Santa Ana); Rancho Santa Ana, Santa Ana River 152 Comment
  RSA17459  Eustoma exaltatum Percy C. Everett 1936-9-29 8275 Orange Rancho Santa Ana, Santa Ana River Bottom, Santa Ana Canyon. 122 Comment
  RSA552  Eustoma exaltatum J. T. Howell 1927-9-24 749 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  RSA795235  Eustoma exaltatum Justin M. Wood, Dustin Ray 2010-10-1 2773 Orange Santa Ana Canyon: Santa Ana River plus/minus 1 mi downstream of Gypsum Canyon Bridge, just upstream of large commercial development. Near drain outflow from Flood Control Levee on south side of channel. 110 Comment
  JEPS32340  Euthamia occidentalis John Thomas Howell 1927-10-22 3167 Orange Rancho Santa Ana Santa Ana River bottom 152 Comment
  RSA151085  Euthamia occidentalis Peter H. Raven 1961-10-15 16856 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  UCR192479  Festuca myuros A. C. Sanders, Fred M. Roberts 2008-3-25 34519 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 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
  RSA852  Filago californica J. T. Howell 1928-4-7 901 Orange Santa Ana River bottom, Rancho Santa Ana 152 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
  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
  CHSC35808  Foeniculum vulgare James Henrickson 1972-10-21 8053 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. Along La Palma Ave., just N. of Santa Ana River. 60 Comment
  POM6424  Fraxinus dipetala P. A. Munz, Street, Williams 1919-5-3 2667 Orange Santa Ana River Canyon. Comment
  CAS-BOT-BC218564  Fraxinus velutina E. R. Johnson 1933-7-6 5170 Orange Santa Ana River, Santa Ana Canyon, Rancho Santa Ana 121 Comment
  UCR139446  Fraxinus velutina var. coriacea E. R. Johnson 1936-4-27 7781 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden, Santa Ana River SW of Mexican Village 122 Comment
  RSA749488  Fritillaria biflora Fred M. Roberts, Linda Farley 2008-3-28 6822 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robbers Peak, Irvine Land Conservancy. 457 Comment
  UCR209378  Fritillaria biflora Fred M. Roberts, Linda Farley 2008-3-28 6822 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 457 Comment
  RSA753421  Fritillaria biflora var. biflora D. E. Bramlet 2008-4-28 4246 Orange East Fort of Upper Weir Cyn., on the north side of the existing access road. The site is found 1.22km east of the main Cyn. & 122m west of the upper boundary of Gypsum Cyn. 406 Comment
  RSA458580  Funastrum cynanchoides var. hartwegii M. B. Dunkle 1933-5-30 3574 Orange Santa Ana Canyon Comment
  RSA539416  Funastrum cynanchoides var. hartwegii Fred M. Roberts, D. Willick 1988-9-16 4133 Orange Peralta Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.1 km N Robbers Peak 177 Comment
  RSA566  Funastrum cynanchoides var. hartwegii J. T. Howell 1927-7-24 461 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  RSA567  Funastrum cynanchoides var. hartwegii J. T. Howell 1927-6-3 19 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA647961  Galium angustifolium Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 28 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  RSA735170  Galium angustifolium A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35287 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR192101  Galium angustifolium A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35287 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UC1143122  Galium angustifolium subsp. angustifolium A. Lewis 1934-4-3 379 Orange 2 1/2 mi n Coal Mine; Corona Quadrangle Comment
  RSA647956  Galium aparine Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 32 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 244 Comment
  UCR11142  Galium aparine S. M. Chambers 1970-5-3 14 Orange Carbon Canyon Road, 2 mi SE of La Vida Mineral Springs Comment
  CAS-BOT-BC94862  Galium nuttallii subsp. nuttallii R. C. Wenk 2008-3-24 722 Orange Chino Hills S.P., South Ridge Road west of San Juan Hill, going W from Equestrian Staging Area 441 Comment
  UCR193262  Gamochaeta pensylvanica A. C. Sanders, Fred M. Roberts 2008-6-17 35523 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  RSA53  Gastridium phleoides J. T. Howell 1927-6-17 163 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA750001  Gastridium phleoides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35321 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  CDA25797  Gastridium ventricosum A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35321 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, 0.3 mile west of Eastern Transportation Corridor (Highway 241) and 1.45 miles east of south end of Walnut Canyon Reservoir. Comment
  UCR194863  Gastridium ventricosum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35321 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  RSA749296  Gilia achilleifolia Fred M. Roberts, Linda Farley 2008-3-28 6816 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
  UCR209375  Gilia achilleifolia Fred M. Roberts, Linda Farley 2008-3-28 6816 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
  POM6410  Gilia angelensis P. A. Munz, L. T. Street, G. Williams 1919-5-3 2628 Orange Santa Ana River Canyon. Comment
  RSA636  Gilia angelensis J. T. Howell 1928-2-25 836 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA734815  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34574 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  UCR192456  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34574 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UCR192503  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34550 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR129870  Gilia capitata P. A. Munz, L. T. Street, G. Williams 1919-5-3 2628 Orange Santa Ana River Canyon 122 Comment
  RSA470266  Gilia capitata subsp. abrotanifolia M. B. Dunkle 1933-5-30 3579 Orange Santa Ana Canyon. 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
  UCR209351  Gilia capitata subsp. abrotanifolia Fred M. Roberts 2008-4-14 6896 Orange Santa Ana Mountains, Upper Weir Canyon, east fork, 3.1 km eat of Robbers Peak, Irvine Ranch Conservancy 453 Comment
  RSA698350  Gilia multicaulis R. H. McArthur s.n. Orange Gypsum Canyon. Comment
  RSA612342  Glycyrrhiza lepidota L. C. Wheeler 1932-7-9 942 Orange Santa Ana River 5 miles below Prado. 152 Comment
  RSA7326  Glycyrrhiza lepidota E. R. Johnson 1933-7-6 5169 Orange 1/2 mile south of Mexican houses, Rancho Santa Ana 122 Comment
  UC864091  Glycyrrhiza lepidota Louis C. Wheeler 1932-7-9 942 Orange 5 mi below Prado; Santa Ana River 152 Comment
  UCR192082  Gnaphalium californicum A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35303 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA856  Gnaphalium chilense J. T. Howell 1927-7-21 453 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA860  Gnaphalium chilense J. T. Howell 1927-10-29 781 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA1303  Gnaphalium leucocephalum J. T. Howell 1928-9-6 1208 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  POM201510  Gnaphalium microcephalum L. M. Booth 817 Orange Santa Ana Canyon Comment
  RSA857  Gnaphalium palustre J. T. Howell 1927-7-18 431 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR208624  Gnaphalium palustre O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  RSA752614  Gnaphalium stramineum Justin M. Wood, J. D. England 2009-7-27 1208 San Bernardino Chino Hills State Park. McDermont Spring. 351 Comment
  UCR194554  Gnaphalium stramineum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35325 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  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
  UCR193056  Grindelia camporum A. C. Sanders, Fred M. Roberts 2008-6-17 35506 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  CAS-BOT-BC123700  Grindelia camporum var. bracteosa John Thomas Howell 1927-7-16 2786 Orange hills on N side of Santa Ana Canyon 182 Comment
  CAS-BOT-BC123701  Grindelia camporum var. bracteosa John Thomas Howell 1927-7-16 2786 Orange hills on N side of Santa Ana Canyon 182 Comment
  RSA17135  Guillenia lasiophylla E. R. Johnson 1936-4-27 7776 Orange Rancho Santa Ana, Santa Ana cayon, in Canyon W of Tennis court, Botanic Garden. 168 Comment
  POM201690  Gutierrezia californica L. M. Booth 814 Orange Santa Ana Canyon Comment
  RSA264441  Gutierrezia californica C. W. Tilforth 1976-10-21 1226 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana. Comment
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Mar 18 2011
  RSA638193  Gutierrezia californica Scott D. White 1998-10-15 7188 Orange Yorba Linda: 1/2 mile south of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development. 152 Comment
  RSA734692  Gutierrezia californica A. C. Sanders, Fred M. Roberts 2008-6-17 35503 Orange Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA735171  Gutierrezia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35288 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  RSA750926  Gutierrezia californica A. C. Sanders, Fred M. Roberts 2008-7-3 35698 Orange Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  RSA864  Gutierrezia californica J. T. Howell 1927-7-28 510 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  RSA867  Gutierrezia californica J. T. Howell 1927-9-24 746 Orange Santa Ana Botany Garden 152 Comment
  RSA868  Gutierrezia californica J. T. Howell 1927-11-6 802 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  SD236194  Gutierrezia californica A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35288 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 299 Comment
  UCR151117  Gutierrezia californica Scott D. White 1998-10-15 7188 Orange Santa Ana Mtns foothills, Yorba Linda, c. 0.5 mi south of Telegraph Canyon between Ohio St. and Fairmont 305 Comment
  UCR192102  Gutierrezia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35288 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR193059  Gutierrezia californica A. C. Sanders, Fred M. Roberts 2008-6-17 35503 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UCR193775  Gutierrezia californica A. C. Sanders, Fred M. Roberts 2008-7-3 35698 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
  CAS-BOT-BC302136  Gutierrezia sarothrae John Thomas Howell 1927-9-24 3111 Orange Hills on n. side of Santa Ana Canon [Canyon] 213 Comment
  CAS-BOT-BC302137  Gutierrezia sarothrae John Thomas Howell 1927-7-28 2866 Orange In hills on n. side of Santa Ana Canon [Canyon] 182 Comment
  CAS-BOT-BC302138  Gutierrezia sarothrae John Thomas Howell 1927-7-22 2816 Orange In hills on north side of Santa Ana Canon [Canyon] 182 Comment
  JEPS18975  Gutierrezia sarothrae John Thomas Howell 1927-9-24 3111 Orange Santa Ana Canyon , Rancho Santa Ana 152 Comment
  RSA701808  Gutierrezia sarothrae Fred M. Roberts 2000-6-8 5339 Orange Chino Hills: Yorba Linda, on ridge between Box and Lost Trough Canyons, c.a. 1.2km NE Bench Mark 388 266 Comment
  RSA751890  Hazardia squarrosa Justin M. Wood, J. D. England 2009-7-27 1219 San Bernardino Chino Hills State Park, northridge trail and vicinity. 488 Comment
  CAS-BOT-BC307267  Hazardia squarrosa var. grindelioides John Thomas Howell 1927-10-22 3160 Orange N. side of Santa Ana Canyon 304 Comment
  RSA5276  Hazardia squarrosa var. grindelioides B. D. Stark 1932-12-15 4452 Orange Rancho Santa Ana, slope above grove #4 145 Comment
  RSA871  Hazardia squarrosa var. grindelioides J. T. Howell 1927-10-22 758 Orange Bluffs near eastern boundary, Rancho Santa Ana 213 Comment
  RSA749471  Hedypnois cretica Fred M. Roberts, Linda Farley 2008-3-28 6826 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  CAS-BOT-BC309485  Helenium puberulum John Thomas Howell 1927-7-21 2808 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  RSA872  Helenium puberulum J. T. Howell 1927-7-15 402 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 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
  UCR192108  Helianthemum scoparium A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35309 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR4047  Helianthemum scoparium 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
  POM12888B  Helianthemum scoparium var. vulgare P. A. Munz, J. M. Johnston, I. M. Munz 1922-5-18 5307 Orange Santa Ana River Canyon. 274 Comment
  RSA479  Helianthemum scoparium var. vulgare J. T. Howell 1928-4-15 920 Orange Bluffs at eastern boundary of the Rancho Santa Ana Comment
  CAS-BOT-BC305446  Helianthus annuus John Thomas Howell 1927-7-27 2846 Orange Hills on n. side of Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC305447  Helianthus annuus John Thomas Howell 1927-7-27 2846 Orange In hills on north side of Santa Ana Canyon 152 Comment
  JEPS35482  Helianthus annuus W. L. Jepson 1940-10-6 20180 Orange Horseshow Bend Santa Ana Canyon Comment
  RSA647889  Helianthus annuus Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 73 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  RSA704934  Helianthus annuus Arthur Davenport 2004-7-6 s.n. Orange Santa Ana River Canyon: Santa Ana River, Featherly Regional Park near La Palma Ave. SE of Horseshoe Bend. 104 Comment
  RSA873  Helianthus annuus subsp. lenticularis J. T. Howell 1927-7-27 484 Orange Near ranch, Rancho Santa Ana 152 Comment
  RSA7324  Helianthus gracilentus E. R. Johnson 1933-7-6 5167 Orange 1/2 mile south of Mexican houses, Rancho Santa Ana 122 Comment
  RSA748268  Helianthus gracilentus A. C. Sanders, Fred M. Roberts 2008-6-17 35513 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA751324  Helianthus gracilentus A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35293 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR192093  Helianthus gracilentus A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35293 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR193414  Helianthus gracilentus A. C. Sanders, Fred M. Roberts 2008-6-17 35513 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR193781  Helianthus gracilentus A. C. Sanders, Fred M. Roberts 2008-7-3 35696 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
  CDA20834  Heliotropium curassavicum P. Akers 2006-3-25 PA 8 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River S of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  SEINET3083751 Image available Heliotropium curassavicum Janice Hollinger 1972-4-16 720416 -5 Orange Santa Ana River bottom, off Coal Canyon Road. Comment
  UC480651  Heliotropium curassavicum Louis C. Wheeler 1931-8-16 Orange Santa Ana R. Canyon 152 Comment
  RSA184178  Heliotropium curassavicum var. oculatum I. L. Wiggins 1965-11-6 20349 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA647  Heliotropium curassavicum var. oculatum J. T. Howell 1927-6-17 159 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  POM5000  Hemizonia fasciculata H. M. Hall 1906-6-19 7411 Orange Gypsum, Santa Ana Canyon 122 Comment
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Sep 4 2011
  POM56177  Hemizonia fasciculata H. M. Hall 1906-6-19 7411 Orange Gypsum, Santa Ana Canyon 122 Comment
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Sep 4 2011
  POM6416  Hemizonia fasciculata P. A. Munz 1919-5-3 2642 Orange Santa Ana River Canyon. Comment
  RSA734989  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35279 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  RSA750921  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts 2008-7-3 35705 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA751892  Hemizonia fasciculata Justin M. Wood, J. D. England 2009-7-27 1221 San Bernardino Chino Hills State Park, northridge trail and vicinity. 488 Comment
  UCR192078  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35279 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR193760  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts 2008-7-3 35705 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR193798  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts 2008-7-3 35682 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR208477  Hemizonia fasciculata Justin M. Wood, Joy England 2009-7-27 1221 San Bernardino Chino Hills, Chino Hills State Park, northridge trail and vicinity 488 Comment
  UCR38084  Hemizonia fasciculata G. Sampson 1985-4-23 85 362 Orange Chino Hills State Park, W end of Telegraph Canyon Comment
  RSA806  Hemizonia laevis J. T. Howell 1927-7-15 406 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  SD114979  Hesperocyparis forbesii Earl W. Lathrop 1976-11-17 7406 Orange 4 miles west of Corona in Gypsum Canyon north slope of Sierra Peak 609 Comment
  CAS-BOT-BC143755  Heteromeles arbutifolia John Thomas Howell 1927-7-16 2783 Orange Hills on north side of Santa Ana [Canon] Canyon 152 Comment
  RSA735169  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35277 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  SD42379  Heteromeles arbutifolia P. C. Everett 1936-1-25 7697 Orange Santa Ana Canyon, Rancho Santa Ana, from a wild plant in the Palm Canyon in the Botanic Garden 182 Comment
  UCR131873  Heteromeles arbutifolia J. Mallory, V. McCoy 1995-6-30 6454- 58 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. Comment
  UCR192076  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35277 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  CAS-BOT-BC318905  Heterotheca grandiflora Ira L. Wiggins 1965-9-6 20354 Orange Kraemer Oil Estates near Well #14 near end of county road to Rancho Santa Ana Comment
  CAS-BOT-BC318908  Heterotheca grandiflora John Thomas Howell 1927-9-24 3112 Orange North side of Santa Ana Canyon 365 Comment
  CAS-BOT-BC318909  Heterotheca grandiflora John Thomas Howell 1927-9-24 3119 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA0075824  Heterotheca grandiflora A. C. Sanders, Fred M. Roberts 2008-7-3 35697 Orange Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  UCR193773  Heterotheca grandiflora A. C. Sanders, Fred M. Roberts 2008-7-3 35697 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
  POM146204  Heterotheca sessiliflora subsp. echioides F. M. Reed 1927-10-14 5502 Orange Summit of Sulfur Slide Hill, Santa Ana Canyon Comment
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May 1 2011
  RSA539418  Heterotheca sessiliflora subsp. echioides Fred M. Roberts, D. Willick 1988-9-16 4135 Orange Peralta Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.1 km N Robbers Peak 177 Comment
  RSA812  Heterotheca sessiliflora subsp. echioides J. T. Howell 1927-9-24 744 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  CAS-BOT-BC318988  Heterotheca sessiliflora var. echioides John Thomas Howell 1927-9-24 3109 Orange North side of Santa Ana Canyon 213 Comment
  CAS-BOT-BC318989  Heterotheca sessiliflora var. echioides John Thomas Howell 1927-9-24 3109 Orange North side of Santa Ana Canyon 213 Comment
  CAS-BOT-BC318990  Heterotheca sessiliflora var. echioides John Thomas Howell 1927-9-24 3113 Orange North side of Santa Ana Canyon 365 Comment
  RSA25872  Hibiscus trionum E. L. Paddock 1941-9-8 120 Orange L.J. Vejar Ranch, E of Yorba Linda. Comment
  CAS-BOT-BC55401  Hirschfeldia incana Ira L. Wiggins 1965-11-6 20344 Orange Near Well No. 14 on Kraemer Oil Estates, near end of county road leading to Rancho Santa Ana. Comment
  CAS-BOT-BC55403  Hirschfeldia incana John Thomas Howell 1927-7-5 2649 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  RSA653179  Hirschfeldia incana David Barrios 1991-5-8 39 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA38433  Hoffmannseggia glauca E. L. Paddock 1946-6-14 11519 Orange Rancho Santa Ana, along AT & SF Ry., above old pear orchard. Area of approximately 100 sq. ft. 121 Comment
  RSA416  Hoita macrostachya J. T. Howell 1928-7-6 1029 A Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA7325  Hoita macrostachya E. R. Johnson 1933-7-6 5168 Orange 1/2 mile south of Mexican houses, Rancho Santa Ana 122 Comment
  A345008  Holodiscus discolor E. R. Johnson 1933-6-22 5000 Unknown Rancho Santa Ana, Santa Ana Canyon, N.W. Corner of Ranch, 1/4 Mi. E., 1/2 Mi. S. 304 Comment
  RSA6142  Holodiscus discolor E. R. Johnson 1933-6-22 5000 Orange 1/4 mile east and 1/2 miles south of northwest corner of Rancho Santa Ana in Sect. 16 305 Comment
  SD40737  Holodiscus discolor E. R. Johnson 1933-6-22 5000 Orange Rancho Santa Ana, Santa Ana Canyon, NW corner of ranch, 1/4 Mi. E, 1/2 mi. S 305 Comment
  CAS-BOT-BC150005  Holodiscus discolor var. discolor E. R. Johnson 1933-6-22 5000 Orange Rancho Santa Ana, Santa Ana Canyon N.W. corner of ranch, 1/4 mi. E., 1/2 mi. S. 304 Comment
  RSA4806  Hordeum depressum James Snow 1932-1 s.n. Orange Bryant Ranch , near Long Beach, Calif. Station #1, Plant 6 Comment
  RSA735167  Hordeum murinum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35278 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR192077  Hordeum murinum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35278 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA55  Hordeum murinum subsp. leporinum J. T. Howell 1928-3-17 869 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA737485  Horkelia cuneata subsp. puberula D. E. Bramlet 2008-4-28 4250 Orange East fork of Upper Weir Cyn., on the S. side of the existing access road. The site is 1.6km east of the main cyn. and 183m west of the Upper boundary of Gypsum Cyn. 406 Comment
  UCR203977  Horkelia cuneata subsp. puberula D. E. Bramlet 2008-4-28 4250 Orange East fork of Upper Weir Canyon on the south side of the existing access road, 1.6 km east of the main canyon and 183 m west of the upper boundary of Gypsum Canyon 406 Comment
  RSA1305  Hydrocotyle ranunculoides J. T. Howell 1928-9-6 1207 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA525  Hydrocotyle umbellata J. T. Howell 1927-7-19 441 Orange Santa Ana River bottom, Rancho Santa Ana [Botanic Garden] 152 Comment
  RSA526  Hydrocotyle umbellata J. T. Howell 1927-8-13 624 Orange Santa Ana River Bottom 152 Comment
  RSA80329  Hydrocotyle umbellata J. T. Howell, F. Peirson 1927-8-13 7687 Orange Santa Ana River, Rancho Santa Ana, eastern end of Orange County. Comment
  POM201671  Hydrocotyle verticillata L. M. Booth 833 Orange Santa Ana Canyon. Comment
  RSA151084  Hydrocotyle verticillata P. H. Raven 1961-10-15 16858 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  RSA527  Hydrocotyle verticillata J. T. Howell 1927-7-5 273 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA80332  Hydrocotyle verticillata J. T. Howell 1927-7-5 2658 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA749428  Hypochaeris glabra Fred M. Roberts 2008-4-14 6892 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork, 3.4 km E Robbers Peak, Irvine Ranch Conservancy. 433 Comment
  UCR192470  Hypochaeris glabra A. C. Sanders, Fred M. Roberts 2008-3-25 34538 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR209349  Hypochaeris glabra Fred M. Roberts 2008-4-14 6892 Orange Santa Ana Mountains, Upper Weir Canyon, east fork, 3.4 km eat of Robbers Peak, Irvine Ranch Conservancy 433 Comment
  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
  RSA638196  Isocoma menziesii Scott D. White 1998-10-19 7190 Orange Yorba Linda: Dissected south and SW-facing foothill slope ca. 1/2 mi S of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development. 152 Comment
  SD181694  Isocoma menziesii Scott D. White 1998-10-19 7190 Orange Yorba Linda; ca. 0.5 mile south of Telegraph Canyon between Ohio St. and Fairmont. 149 Comment
  UCR151113  Isocoma menziesii Scott D. White 1998-10-19 7190 Orange Santa Ana Mtns foothills, Yorba Linda, c. 0.5 mi south of Telegraph Canyon between Ohio St. and Fairmont 305 Comment
  UCR151115  Isocoma menziesii Scott D. White 1998-10-15 7184 Orange Santa Ana Mtns foothills, Yorba Linda, c. 0.5 mi south of Telegraph Canyon between Ohio St. and Fairmont 305 Comment
  SD124238  Isocoma menziesii var. menziesii C. W. Tilforth 1976-10-21 1225 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana Comment
  CAS-BOT-BC311670  Isocoma menziesii var. vernonioides John Thomas Howell 1927-9-24 3105 Orange On n. side of Santa Ana Canon [Canyon] 152 Comment
  CHSC100702  Isocoma menziesii var. vernonioides R. E. Riefner Jr. 2004-9-18 04 -425 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. UTM 11S 0431519E 3749312N. NAD 83. 105 Comment
  GH417953  Isocoma menziesii var. vernonioides J. T. Howell 1927-9-24 3105 Unknown Santa Ana Canyon 152 Comment
  RSA264440  Isocoma menziesii var. vernonioides C. W. Tilforth 1976-10-21 1225 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana. Comment
Read comments
Mar 18 2011
  RSA5380  Isocoma menziesii var. vernonioides B. D. Stark 1932-12-30 4459 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA890  Isocoma menziesii var. vernonioides J. T. Howell 1927-10-29 785 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA892  Isocoma menziesii var. vernonioides J. T. Howell 1927-9-24 738 Orange Santa Ana Botany Garden 152 Comment
  UC1424944  Isocoma menziesii var. vernonioides C. W. Tilforth 1976-10-21 1225 Orange slopes above Santa Ana River Canyon (on Rancho Santa Ana) Comment
  CAS-BOT-BC112424  Isolepis cernua John Thomas Howell 1927-7-19 2799 Orange Moist shady situation, Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  RSA750904  Isolepis cernua A. C. Sanders, Fred M. Roberts 2008-7-3 35708 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA90  Isolepis cernua J. T. Howell 1927-7-18 434 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA39344  Iva axillaris subsp. robustior E. L. Paddock 1943-6-16 12732 Orange Santa Fe Railway 0.25 mile W of Esperanza Station Grounds (opposite Ernest Yorba property). 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
  POM265664  Jepsonia parryi J. C. Roos 1936-10-9 2301 Orange Santa Ana Canyon, near Orange County line. Comment
  UCR24414  Jepsonia parryi John C. Roos 1936-10-9 2301 Orange Santa Ana Canyon Comment
  CAS-BOT-BC101917  Juglans californica John Thomas Howell 1927-7-27 2847 Orange Hills on n. side of Santa Ana [Canon] Canyon 152 Comment
  RSA0011055  Juglans californica D. E. Bramlet 2008-6-5 4291 Orange Santa Ana Mtns foothills: Tributary to Weir Cyn., 731 m N of the SCE Transmission Line & 229m west of Weir Canyon Road. 257 Comment
  RSA172  Juglans californica J. T. Howell 1927-7-27 485 Orange Near ranch, Rancho Santa Ana 152 Comment
  UCR222643  Juglans californica D. E. Bramlet 2008-6-5 4291 Orange Peninsular Range; Santa Ana Mtns. Foothills, tributary to Wier Canyon, 731 m north of SCE transmission line and 229 m west of Weir Canyon Rd. 257 Comment
  RSA750920  Juncus balticus A. C. Sanders, Fred M. Roberts 2008-7-3 35706 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR193797  Juncus balticus A. C. Sanders, Fred M. Roberts 2008-7-3 35706 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  POM7126  Juncus balticus subsp. ater Phillip A. Munz, L. T. Street, G. Williams 1919-5-3 2654 Orange Santa Ana River Canyon. Comment
  RSA731916  Juncus balticus var. balticus Fred M. Roberts, Sandy Leatherman 2007-11-27 6663 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  RSA103  Juncus bufonius J. T. Howell 1928-4-14 915 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA752616  Juncus bufonius Justin M. Wood, J. D. England 2009-7-27 1210 San Bernardino Chino Hills State Park. McDermont Spring. 351 Comment
  UCR208483  Juncus bufonius Justin M. Wood, Joy England 2009-7-27 1210 San Bernardino Chino Hills, Chino Hills State Park, McDermont Spring 351 Comment
  RSA105  Juncus mexicanus J. T. Howell 1927-6-21 187 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA106  Juncus mexicanus J. T. Howell 1927-6-16 145 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA108  Juncus mexicanus J. T. Howell 1927-7-18 436 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA6061  Juncus mexicanus E. R. Johnson 1932-5-5 3702 Orange Santa Ana River, Rancho Santa Ana 122 Comment
  UC729648  Juncus mexicanus E. R. Johnson 1932-5-5 Orange Santa Ana River bottom, near ranch house Santa Ana Canyon, Rancho Santa Ana 121 Comment
  RSA50308  Juncus phaeocephalus E. K. Balls 1949-5-9 13467 Orange [Rancho Santa Ana] 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
  RSA110  Juncus rugulosus J. T. Howell 1927-7-18 423 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA104  Juncus torreyi J. T. Howell 1927-7-14 399 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA794757  Juncus torreyi Justin M. Wood, Dustin M. Ray 2010-10-1 2774 Orange Santa Ana Canyon: Santa Ana River plus/minus 1 mi downstream of Gypsum Canyon Bridge, just upstream of large commercial development. Near drain outflow from Flood Control Levee on south side of channel. 110 Comment
  POM201668  Juncus xiphioides L. M. Booth 836 Orange Santa Ana Canyon. Comment
  RSA101  Juncus xiphioides J. T. Howell 1927-7-18 427 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA21064  Juncus xiphioides Ramon Valverde 1938-8-4 9440 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA7323  Juncus xiphioides E. R. Johnson 1933-7-5 5166 Orange Rancho Santa Ana. 122 Comment
  RSA748271  Juncus xiphioides A. C. Sanders, Fred M. Roberts 2008-6-17 35510 Orange Middle section of Weir Canyon, SSE of Walnut Canyon Reservoir. 225 Comment
  RSA750922  Juncus xiphioides A. C. Sanders, Fred M. Roberts 2008-7-3 35704 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA752617  Juncus xiphioides Justin M. Wood, J. D. England 2009-7-27 1213 San Bernardino Chino Hills State Park. McDermont Spring. 351 Comment
  UCR193276  Juncus xiphioides A. C. Sanders, Fred M. Roberts 2008-6-17 35510 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR193765  Juncus xiphioides A. C. Sanders, Fred M. Roberts 2008-7-3 35704 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  POM282592  Juniperus californica J. Higginbotham 1932-05 1 Kern Kernville, Greenhorn Mountain Range, Kern River watershed 671 Comment
  CAS-BOT-BC235490  Keckiella antirrhinoides John Thomas Howell 1927-6-5 2430 Orange Santa Ana Canyon 152 Comment
  POM6386  Keckiella antirrhinoides Philip A. Munz, Street, Williams 1919-5-3 2621 Orange Santa Ana River Canyon. Comment
  RSA5279  Keckiella antirrhinoides B. D. Stark 1932-12-15 1701 Orange Rancho Santa Ana, slope above grove #4. 145 Comment
  RSA552937  Keckiella antirrhinoides Fred M. Roberts Jr. 1989-5-9 4339 Orange Santa Ana Mts: Gypsum Canyon, west fork, 5.6 km WNW Sierra Peak, c.a. 1 km S Highway 91. 146 Comment
  RSA612318  Keckiella antirrhinoides Louis C. Wheeler 1932-7-9 943 Orange Santa Ana River 5 miles below Prado. 152 Comment
  RSA740  Keckiella antirrhinoides J. T. Howell 1927-6-5 33 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA79829  Keckiella antirrhinoides F. W. Peirson 1922-5-18 3027 Orange Santa Ana River. 122 Comment
  UC1018202  Keckiella antirrhinoides J. Warren 1952-4-5 Orange Santa Ana Canyon Comment
  CAS-BOT-BC235533  Keckiella antirrhinoides var. antirrhinoides John Thomas Howell 1927-6-5 2430 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 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
  RSA748264  Keckiella cordifolia A. C. Sanders, Fred M. Roberts 2008-6-17 35516 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR193025  Keckiella cordifolia A. C. Sanders, Fred M. Roberts 2008-6-17 35516 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  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
  RSA184078  Kochia scoparia I. L. Wiggins 1966-4-3 20576 Orange Railroad embankment near entrance to Rancho Santa Ana. Comment
  POM7128  Koeleria macrantha P. A. Munz, L. T. Street, G. Williams 1919-5-3 2633 Orange Santa Ana River Canyon. Comment
  POM7129  Koeleria macrantha P. A. Munz, L. T. Street 1919-5-3 2622 Orange Santa Ana River Canyon. Comment
  RSA72  Koeleria macrantha J. T. Howell 1928-3-17 879 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA734810  Koeleria macrantha A. C. Sanders, Fred M. Roberts 2008-3-25 34579 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  RSA749490  Koeleria macrantha Fred M. Roberts, Linda Farley 2008-3-28 6824 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber's Peak, Irvine Land Conservancy. 437 Comment
  RSA753162  Koeleria macrantha D. E. Bramlet 2008-4-28 4245 A Orange East Fork of Upper Weir Cyn, 1.2km east of the main Cyn. & 91m W of the upper boundary of Gypsum Cyn. 409 Comment
  UCR192451  Koeleria macrantha A. C. Sanders, Fred M. Roberts 2008-3-25 34579 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
  UCR209381  Koeleria macrantha Fred M. Roberts, Linda Farley 2008-3-28 6824 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
  CAS-BOT-BC271251  Koeleria pyramidata P. Munz; L. Street 1919-5-3 2622 Orange Santa Ana River Canyon Comment
  CAS-BOT-BC271252  Koeleria pyramidata P. Munz; L. Street; G. Williams 1919-5-3 2633 Orange Santa Ana River Canyon Comment
  RSA0069226  Koelreuteria bipinnata Fred M. Roberts 2008-9-3 7081 Orange Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave. 113 Comment
  UCR266665  Koelreuteria bipinnata Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7081 Orange YORBA LINDA: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave 113 Comment
  UCR236678  Koelreuteria paniculata Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7100 Orange Peninsular Ranges, Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.7 km W Gypsum Cyn. Rd. bridge, south of La Palma Ave. 107 Comment
  RSA752818  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-8-7 36001 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA894  Lactuca serriola J. T. Howell 1927-7-27 496 Orange Near ranch, Rancho Santa Ana 152 Comment
  UCR195006  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-8-7 36001 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UCD63411  Lamarckia aurea F. M. Reed 1925-4-15 6325 Orange Santa Ana Canon, near Canal Bridge. 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
  UCR2510  Lamarckia aurea F. M. Reed 1925-4-15 6325 Orange Santa Ana Canyon near Canal Bridge 168 Comment
Read comments
Dec 7 2014
  RSA796  Lasthenia coronaria J. T. Howell 1928-2-25 850 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA734643  Lasthenia glabrata A. C. Sanders, Fred M. Roberts 2008-3-25 34571 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
  UCR191779  Lasthenia glabrata A. C. Sanders, Fred M. Roberts 2008-3-25 34571 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
  RSA0008491  Lasthenia glabrata subsp. coulteri D. E. Bramlet 2008-4-14 4175 Orange Upper Weir Cyn., NE Trib., 596m NE of Rd Junction, and 47m E of the wash 282 Comment
  UCSB69273  Lasthenia glabrata subsp. glabrata Sanders, A.; Roberts, Fred 2008-3-25 Orange Peninsular Range; Santa Ana Mtns.; saddle on ridge near head of Weid Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake (Black Star Canyon 7.5' Q.; +/-1000m.) 405 Comment
  RSA405709  Lathyrus vestitus subsp. laetiflorus E. Crow 1929-2-22 164 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  RSA518451  Lathyrus vestitus subsp. laetiflorus Dorothy Tilforth, C. W. Tilforth 1977-3-6 1253 Orange Small canyon W of Gypsum Canyon, S side of Santa Ana River 152 Comment
  POM6370  Layia platyglossa subsp. campestris P. A. Munz, L. T. Street, Williams 1919-5-3 2646 Orange Santa Ana River Canyon. Comment
  RSA896  Layia platyglossa subsp. campestris J. T. Howell 1928-2-25 844 Orange Between Nolina and Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA705543  Leersia oryzoides R. E. Riefner Jr. 2003-12-14 3 -458 Orange Featherly Regional Park, Santa Ana River, vicinity of La Palma Avenue and Lomas de Yorba West, S of Gypsum Canyon Road. 105 Comment
  RSA724037  Leersia oryzoides R. E. Riefner 2004-9-18 4 -425 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. 105 Comment
  RSA731940  Lepidium didymum Fred M. Roberts, Sandy Leatherman 2007-11-27 6695 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA326  Lepidium lasiocarpum J. T. Howell 1928-2-26 859 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR207789  Lepidium lasiocarpum 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
  CAS-BOT-BC12520  Lepidium nitidum Carl B. Wolf 1932-2-15 2657 Orange Rancho Santa Ana Botanic Garden, above the Rubus beds. 182 Comment
  CAS-BOT-BC12521  Lepidium nitidum Carl B. Wolf 1932-2-15 2658 Orange Rancho Santa Ana Botanic Garden, near the tan oak beds. 182 Comment
  RSA325  Lepidium nitidum J. T. Howell 1928-2-7 813 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SD27942  Lepidium nitidum Carl B. Wolf 1932-2-15 2657 Orange Rancho Santa Ana Botanic Garden, above the Rubus beds 185 Comment
  SD28156  Lepidium nitidum Carl B. Wolf 1932-2-15 2658 Orange Rancho Santa Ana Botanic Garden near the Tan Oak Beds 185 Comment
  UCR192487  Lepidium nitidum A. C. Sanders, Fred M. Roberts 2008-3-25 34515 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR60664  Lepidium nitidum var. nitidum C. B. Wolf 1932-2-15 02657 Orange Rancho Santa Ana Botanic Garden, above the Rubus beds 183 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
  CAS-BOT-BC60081  Lepidium virginicum var. menziesii John Thomas Howell 1927-6-20 2559 Orange On north side of Santa Ana Canyon. 228 Comment
  CAS-BOT-BC60082  Lepidium virginicum var. menziesii John Thomas Howell 1927-6-21 2561 Orange North side of Santa Ana Canyon. 152 Comment
  RSA328  Lepidium virginicum var. pubescens J. T. Howell 1927-6-21 175 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  RSA329  Lepidium virginicum var. pubescens J. T. Howell 1927-6-20 172 Orange Botany Garden, Rancho Santa Ana 152 Comment
  RSA753422  Lepidium virginicum var. robinsonii D. E. Bramlet, Fred Roberts 2008-5-13 4268 Orange Upper Eastern area of Weir Cyn, 446m west of Hwy 241 & 958m N of Weir Cyn Road 381 Comment
  UCR194550  Lepidium virginicum var. robinsonii A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35322 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  CAS-BOT-BC329357  Lepidospartum squamatum John Thomas Howell 1927-7-28 2864 Orange North side of Santa Ana Canon 152 Comment
  RSA899  Lepidospartum squamatum J. T. Howell 1927-7-28 505 Orange West side, Rancho Santa Ana. 152 Comment
  RSA731934  Leptochloa fusca subsp. uninervia Fred M. Roberts, Sandy Leatherman 2007-11-27 6676 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA734967  Leptodactylon californicum A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35302 Orange Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UCR192117  Leptodactylon californicum A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35302 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA574  Leptosiphon androsaceus J. T. Howell 1928-4-7 905 Orange Botany Garden, Rancho Santa Ana. [original location] Comment
  RSA699631  Leptosiphon floribundus Keith E. Hoffmaster 1934-4-8 s.n. Orange Gypsum can (n. Corona), Santa Ana Mts Comment
Read comments
Dec 11 2011
  POM6380  Leptosiphon liniflorus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2648 Orange Santa Ana River Canyon. Comment
  RSA507487  Leptosiphon liniflorus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA576  Leptosiphon liniflorus J. T. Howell 1927-6-8 58 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  SD28081  Leptosiphon liniflorus Carl B. Wolf 1932-5-19 3637 Orange Rancho Santa Ana Botanic Garden, west of the tennis court. 198 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
  CAS-BOT-BC283710  Leymus condensatus John Thomas Howell 1927-6-10 2473 Orange Santa Ana Canyon in low place where water stands in winter 152 Comment
  RSA51  Leymus condensatus E. R. Johnson 1927-6-10 77 Orange Rancho Santa Ana. Alt 500 ft. 152 Comment
  RSA739779  Leymus condensatus A. C. Sanders, Fred M. Roberts 2008-7-3 35666 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  RSA554  Limonium californicum var. mexicanum J. T. Howell 1927-10-29 771 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA701802  Limonium duriusculum Fred M. Roberts 2000-6-5 5338 Orange Yorba Linda, along Hidden Hills Dr. near Sunbeam Lane, on ridge above Box Canyon 376 Comment
  UCR149414  Limonium duriusculum Fred M. Roberts 2000-6-5 5338 Orange Chino Hills, Yorba Linda, along Hidden Hills Dr. near Sunbeam Lane, on ridge above Box Canyon 376 Comment
  CAS-BOT-BC226771  Linanthus californicus Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canon [Canyon] Comment
  CAS-BOT-BC226772  Linanthus californicus Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canon [Canyon] Comment
  POM6475  Linanthus californicus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2629 Orange Santa Ana River Canyon. Comment
  RSA5277  Linanthus californicus B. D. Stark 1932-12-15 4453 Orange Rancho Santa Ana, slope above grove #4. 145 Comment
  RSA617  Linanthus californicus J. T. Howell 1928-4-15 918 Orange Near east boundary of the Rancho Santa Ana 229 Comment
  RSA734640  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34559 Orange Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA734644  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34570 Orange Peninsular Range; Santa Ana Mtns.: Saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  UCR191778  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34570 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UCR191782  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34559 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA4498  Linanthus dianthiflorus subsp. dianthiflorus C. B. Wolf 1932-3-14 2711 Orange At west side of Botanic Garden(this is the only known patch in the vicinity of the B.g.) 192 Comment
  JEPS33699  Linanthus liniflorus John Thomas Howell 1927-6-8 2458 Orange Santa Ana Canyon 182 Comment
  UC908693  Linanthus liniflorus J. T. Howell 1927-6-8 2458 Orange Rancho Santa Ana Rancho Santa Canyon 182 Comment
  UCR209366  Linanthus parviflorus Fred M. Roberts, Linda Farley 2008-3-28 6833 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
  RSA718  Linaria canadensis var. texana J. T. Howell 1928-2-25 835 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA731945  Lobularia maritima Fred M. Roberts, Sandy Leatherman 2007-11-27 6690 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA284  Loeflingia squarrosa J. T. Howell 1928-3-18 893 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  UCR193796  Lolium perenne subsp. perenne A. C. Sanders, Fred M. Roberts 2008-7-3 35707 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  CAS-BOT-BC271070  Lolium temulentum E. R. Johnson 1932-5-18 3638 Orange East edge of grain field bordering Rancho, Rancho Santa Ana Botanic Garden 198 Comment
  SEINET192611 Image available Lolium temulentum E. R. Johnson 1932-5-18 Orange Rancho Santa Ana Botanic Garden; edge of grain field bordering the Rancho Comment
  UCR139448  Lolium temulentum E. R. Johnson 1932-5-18 3638 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden, east edge of grain field bordering Rancho 198 Comment
  RSA751165  Lomatium lucidum D. E. Bramlet 2008-5-9 4267 Orange Ridgeline between the upper two tributaries of Wier Cyn. 1.2km east of S. Serrano Ave & 1.3km west of Gypsum Cyn. 330 Comment
  UCR199677  Lomatium utriculatum Scott D. White, Justin M. Wood 2008-4-9 11844 San Bernardino Chino Hills, Chino Hills State Park, in and adjacent to the northern park boundary, to the west and southwest of the main park entrance 512 Comment
  UCR199687  Lomatium utriculatum Scott D. White, Justin Wood 2008-4-9 11839 San Bernardino Chino Hills, Chino Hills State Park, in and adjacent to the northern park boundary, to the west and southwest of the main park entrance 512 Comment
  RSA528  Lomatium vaginatum J. T. Howell 1928-2-7 820 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA530  Lomatium vaginatum J. T. Howell 1927-6-3 22 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA735019  Lomatium vaginatum Scott D. White, Justin Wood 2008-4-9 11839 San Bernardino Chino Hills State Park, in and adjacent to the northern park boundary. To the west and southwest of the main park entrance. 366 Comment
  RSA735024  Lomatium vaginatum Scott D. White, Justin Wood 2008-4-9 11844 San Bernardino Chino Hills State Park, in and adjacent to the northern park boundary. To the west and southwest of the main park entrance. 366 Comment
  RSA751430  Lonicera subspicata A. C. Sanders, Fred M. Roberts 2008-7-3 35670 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UCR193803  Lonicera subspicata A. C. Sanders, Fred M. Roberts 2008-7-3 35670 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR192478  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
  RSA392  Lotus heermannii J. T. Howell 1928-7-6 1029 -B Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA396  Lotus salsuginosus J. T. Howell 1927-6-3 23 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UC1543236  Lotus salsuginosus Donald G. Nelson 1935-3-17 169 Orange Carbon Canyon, ne area of Orange County Puente Hills Comment
  UCR192494  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-3-25 34562 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC19937  Lotus salsuginosus subsp. salsuginosus Gordon A. Marsh, K. G. Marsh 1983-3-2 Orange burn area on ridge between Coal and Gypsum Canyons, Santa Ana Mountains Comment
  RSA393  Lotus scoparius J. T. Howell 1927-6-1 4 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA5430  Lotus scoparius B. D. Stark 1933-1-3 4478 Orange Rancho Santa Ana near pear orchard. 122 Comment
  RSA648948  Lotus scoparius Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 66 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  UC1129145  Lotus scoparius A. Lewis 1934-3-1 346 Orange San Juan Hills Corona Quad. 396 Comment
  UCR131884  Lotus scoparius J. Mallory, V. McCoy 1995-6-30 6454- 59 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. Comment
  RSA739555  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-7-3 35668 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UCR193542  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-7-3 35668 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA390  Lotus strigosus J. T. Howell 1928-4-7 899 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA391  Lotus strigosus J. T. Howell 1928-2-25 842 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  UCR192497  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-3-25 34565 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR4074  Lotus strigosus 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
  RSA653210  Lotus wrangelianus David Barrios 1991-5-8 38 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA735042  Lotus wrangelianus Scott D. White, Justin M. Wood, Jason Berkley 2008-4-8 11824 San Bernardino Chino Hills: Chino Hills State Park, northridge trail and vicinity. 488 Comment
  UCR239881  Ludwigia peploides O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  RSA21063  Ludwigia peploides subsp. peploides Ramon Valverde 1938-8-4 3229 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA38193  Ludwigia peploides subsp. peploides P. A. Munz 1946-10-2 11557 Orange Bank of Santa Ana River, Rancho Santa Ana. 122 Comment
  RSA502  Ludwigia peploides subsp. peploides J. T. Howell 1927-7-14 396 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR192505  Lupinus bicolor A. C. Sanders, Fred M. Roberts 2008-3-25 34552 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA407  Lupinus bicolor subsp. microphyllus J. T. Howell 1925-2-25 852 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  OBI5825  Lupinus excubitus Carl B. Wolf 1931-5-20 2056 Orange Along Santa Fe RR 1 mi W of Esperanza, Santa Ana Cyn 107 Comment
  UC527213  Lupinus excubitus C. B. Wolf 1931-5-20 2056 Orange along Santa Fe R.R. 1 mi w Esperanza (Santa Ana Canyon); Santa Ana Canyon 106 Comment
  UC527218  Lupinus excubitus C. B. Wolf 1931-3-25 1936 Orange along the Santa Fe R.R. 1 mi w Esperanza (Santa Ana Canyon); Santa Ana Canyon 106 Comment
  CAS-BOT-BC216670  Lupinus excubitus subsp. hallii Munz; Street; Williams 1919-5-3 2658 Orange Santa Ana Canon [Canyon] Comment
  CAS-BOT-BC216673  Lupinus excubitus subsp. hallii B. D. Stark 1931-4-18 1939 Orange Gypsum Canyon, N base of Santa Ana Mountains, Santa Ana Canyon 152 Comment
  CAS-BOT-BC216676  Lupinus excubitus subsp. hallii Ramon Valverde 1939-5-1 3514 Orange Administrative building, grounds, Rancho Santa Ana Botanic Garden Comment
  CAS-BOT-BC215311  Lupinus excubitus var. excubitus E. R. Johnson 1929-5-1 s.n. Orange RR embankment at W end of Santa Ana Canon [Canyon], E of Atwood 91 Comment
  CAS-BOT-BC216692  Lupinus excubitus var. excubitus C. B. Wolf 1931-3-25 1936 Orange 1 mile W of Esperanza, Along the Santa Fe RR, Santa Ana Canyon 106 Comment
  CAS-BOT-BC216693  Lupinus excubitus var. excubitus Carl B. Wolf 1930-3-25 1936 Orange Esperanza Siding, Santa Fe RR Comment
  CAS-BOT-BC216694  Lupinus excubitus var. excubitus Carl B. Wolf 1930-3-25 1936 Orange 1 mile W of Esperanza siding of Santa Fe RR 106 Comment
  POM212330  Lupinus excubitus var. hallii Carl B. Wolf 1931-3-25 1936 Orange along Santa Fe R. R, 1 mile west of Esperanza , Santa Ana Canyon. 107 Comment
  RSA2098  Lupinus excubitus var. hallii B. D. Stark 1931-4-18 1939 Orange Mouth of Gypsum Canyon, Santa Ana Mts, Santa Ana Canyon opposite the Botanic Garden. 152 Comment
  RSA3236  Lupinus excubitus var. hallii Carl B. Wolf 1931-5-20 2056 Orange Along Santa Fe R. R. 1 mile west of Esperanza 107 Comment
  RSA3253  Lupinus excubitus var. hallii B. D. Stark 1931-4-18 1939 Orange mouth of Gypsum Canyon, Santa Ana Mts. Comment
  RSA6198  Lupinus excubitus var. hallii Carl B. Wolf 1932-5-27 3699 Orange Santa Fe R R, 1 mile West of Esperanza, Santa Ana Canyon. 107 Comment
  RSA735043  Lupinus excubitus var. hallii Scott D. White, Justin M. Wood, Jason Berkley 2008-4-8 11825 San Bernardino Chino Hills: Chino Hills State Park, northridge trail and vicinity. 488 Comment
  UC527220  Lupinus excubitus var. hallii B. D. Stark 1931-4-18 1939 Orange Santa Ana Canyon mouth of Gypsum Canyon; n base of Santa Ana Mts., Santa Ana Canyon 152 Comment
  UCR199691  Lupinus excubitus var. hallii Scott D. White, Justin Wood, Jason Berkley 2008-4-8 11825 San Bernardino Chino Hills, Chino Hills State Park, northridge trail and vicinity 488 Comment
  RSA409  Lupinus hirsutissimus J. T. Howell 1928-2-25 847 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC202088  Lupinus longifolius B. D. Stark 1931-4-18 1939 Riverside Mouth of Gypsum Canyon, Santa Ana Mts. Comment
  CAS-BOT-BC217742  Lupinus longifolius E. R. Johnson 1932-4-15 2957 Orange 1 mi. NW of Roundtop, Rancho Santa Ana, Santa Ana Canyon 457 Comment
  CAS-BOT-BC217748  Lupinus longifolius E. R. Johnson 1932-4-15 2956 Orange Rancho Santa Ana, 1 mi. NW of Roundtop (Section 16) 457 Comment
  CAS-BOT-BC217749  Lupinus longifolius E. R. Johnson 1932-4-15 2957 Orange Rancho Santa Ana, 1 mi. NW of Roundtop (Section 16) 457 Comment
  RSA4865  Lupinus longifolius E. R. Johnson 1932-4-15 2956 Orange Rancho Santa Ana, 1mile NWof Roundtop (section 16) 457 Comment
  RSA4866  Lupinus longifolius E. R. Johnson 1932-4-15 2957 Orange Rancho Santa Ana, 1mile NWof Roundtop (section 16) 457 Comment
  RSA647937  Lupinus longifolius Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 55 Orange 1000 ft. north of Chino Hills State Park Boundary 229 Comment
  POM6382  Lupinus sparsiflorus subsp. sparsiflorus Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2632 Orange Santa Ana River Canyon Comment
  RSA13190  Lupinus sparsiflorus subsp. sparsiflorus Percy C. Everett 1935-5-6 6754 Orange Santa Ana canyon, Rancho Santa Ana, Railroad embankment. 152 Comment
  RSA17206  Lupinus sparsiflorus subsp. sparsiflorus Percy C. Everett 1935-5-6 6754 Orange Rancho Santa Ana. along railroad embankment north of pear orchard. 122 Comment
  RSA405  Lupinus sparsiflorus subsp. sparsiflorus J. T. Howell 1928-2-25 843 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA507484  Lupinus succulentus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA653185  Lupinus succulentus David Barrios 1991-5-8 33 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA734641  Lupinus succulentus A. C. Sanders, Fred M. Roberts 2008-3-25 34573 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
  RSA88903  Lupinus succulentus E. K. Balls 1954-3-1 18850 Orange Botanic Garden, Santa Ana Canyon Comment
  RSA89141  Lupinus succulentus E. K. Balls 1952-3-8 18876 Orange Along Esperanza Road, W of entrance to Rancho Santa Ana. Comment
  UC1129752  Lupinus succulentus A. Lewis Mar 1934 348 Orange San Juan Hills; Corona Quad., San Juan Hills 396 Comment
  UCR191781  Lupinus succulentus A. C. Sanders, Fred M. Roberts 2008-3-25 34573 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
  RSA404  Lupinus truncatus J. T. Howell 1928-2-25 839 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  UCR192498  Lupinus truncatus A. C. Sanders, Fred M. Roberts 2008-3-25 34566 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  JEPS63273  Lycopus americanus John Thomas Howell 1927-9-24 3120 Orange Rancho Santa Ana R. bottom Rancho Santa Ana; Rancho Santa Ana R., Rancho Santa Ana 152 Comment
  RSA656  Lycopus americanus J. T. Howell 1927-9-24 753 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  CAS-BOT-BC206251  Malacothamnus fasciculatus Louis C. Wheeler 1932-7-9 941 Orange Santa Ana River, 5 mi. below Prado 152 Comment
  CAS-BOT-BC206252  Malacothamnus fasciculatus C. B. Wolf 1931-7-25 1166 Orange Along the road at north side of the Pear Orchard, Rancho Santa Ana, Santa Ana Can. 121 Comment
  CAS-BOT-BC206253  Malacothamnus fasciculatus C. B. Wolf 1931-7-25 1166 Orange North side of Pear Orchard, Rancho Santa Ana, Santa Ana Canyon 121 Comment
  CAS-BOT-BC206254  Malacothamnus fasciculatus Louis C. Wheeler 1932-7-9 941 Orange Santa Ana River, 5 mi. below Prado 152 Comment
  CAS-BOT-BC206260  Malacothamnus fasciculatus John Thomas Howell 1927-6-20 2557 Orange North side of Santa Ana Canyon 243 Comment
  OBI12364  Malacothamnus fasciculatus Louis C. Wheeler 1932-7-9 941 Orange Santa Ana River, 5 mi below Prado 152 Comment
  POM201634  Malacothamnus fasciculatus L. M. Booth 838 Orange Santa Ana Canyon. Comment
  RSA13294  Malacothamnus fasciculatus Carl B. Wolf 1931-7-25 3893 Orange N side of pear orchard, Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA3155  Malacothamnus fasciculatus Carl B. Wolf 1931-7-25 2294 Orange along road at north side of pear orchard, Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA433331  Malacothamnus fasciculatus Louis C. Wheeler 1932-7-9 941 Orange Santa Ana River 5 miles below Prado. 152 Comment
  RSA472  Malacothamnus fasciculatus J. T. Howell 1927-6-20 170 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA647941  Malacothamnus fasciculatus Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-1 17 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  RSA647942  Malacothamnus fasciculatus Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-1 79 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  RSA751428  Malacothamnus fasciculatus A. C. Sanders, Fred M. Roberts 2008-7-3 35677 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UC527450  Malacothamnus fasciculatus C. B. Wolf 1931-7-25 2294 Orange Rancho Santa Ana, along road at N side of Pear Orchard Santa Ana Canyon 121 Comment
  UCR193784  Malacothamnus fasciculatus A. C. Sanders, Fred M. Roberts 2008-7-3 35677 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  LA41778  Malacothamnus fasciculatus var. fasciculatus Louis C. Wheeler; 1932-7-9 941 Orange Santa Ana River 5 mi. below Prado 152 Comment
  OBI5977  Malacothamnus fasciculatus var. fasciculatus Carl B. Wolf 1931-7-25 2294 Orange N side of the Pear Orchard, Rancho Santa Ana, Santa Ana Can. 122 Comment
  RSA553110  Malacothamnus fasciculatus var. laxiflorus Fred M. Roberts 1989-5-9 4342 -A Orange Gypsum Canyon, west for,, 5.6 km WNW Sierra Peak, 1km S Hwy 91. 146 Comment
  UCR193543  Malacothrix saxatilis A. C. Sanders, Fred M. Roberts 2008-7-3 35669 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR3184  Malacothrix saxatilis Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  CAS-BOT-BC347890  Malacothrix saxatilis var. tenuifolia John Thomas Howell 1927-6-9 2463 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 152 Comment
  RSA647890  Malacothrix saxatilis var. tenuifolia Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 60 Orange 1/2 mile south of Chino Hills State Park Boundary 229 Comment
  UC126795  Malacothrix saxatilis var. tenuifolia H. M. Hall 1906-6-19 7410 Orange vicinity Riverside (Gypsum); Santa Ana Canyon 121 Comment
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Sep 4 2011
  UC68974  Malacothrix saxatilis var. tenuifolia H. M. Hall July, 1905 6728 Orange Santa Ana Canyon 121 Comment
  CAS-BOT-BC167851  Malosma laurina John Thomas Howell 1927-7-16 2784 Orange Hills on north side of Santa Ana [Canon] Canyon 152 Comment
  POM201684  Malosma laurina L. M. Booth 821 Orange Santa Ana Canyon. Comment
  RSA12784  Malosma laurina Percy C. Everett 1934-10-4 6209 Orange N side of Irrigation Canal, opp. Orange Co. Plant Sanctuary, Rancho Santa Ana. 122 Comment
  RSA13103  Malosma laurina Percy C. Everett 1935-10-29 2574 Orange Rancho Santa Ana, Santa Ana Canyon N of canal & Mexican houses. 122 Comment
  RSA447  Malosma laurina J. T. Howell 1927-7-16 415 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA751794  Malosma laurina A. C. Sanders, Fred M. Roberts 2008-7-3 35685 Orange upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  UCR239901  Malosma laurina O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  UC1929557  Malva nicaeensis Scott D. White, Justin Wood 2008-4-22 11907 Orange Chino Hills: Telegraph Canyon Road, E of Carbon Canyon Regional Park. 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
  UCR192466  Malva parviflora A. C. Sanders, Fred M. Roberts 2008-3-25 34534 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA735967  Malva pseudolavatera Scott D. White, Justin M. Wood 2008-4-22 11907 Orange Chino Hills: Telegraph Canyon Road, E of Carbon Canyon Regional Park. 152 Comment
  SD193050  Malva pseudolavatera Scott D. White, Justin Wood 2008-4-22 11907 Orange Chino Hills: Telegraph Canyon Road, east of Carbon Canyon Regional Park. 152 Comment
  RSA2108  Marah macrocarpa C. B. Wolf 1931-2-9 1829 Orange Santa Ana Canyon between Horseshoe Bend and Esperanza, over whire fence along RR. 137 Comment
  RSA212422  Marah macrocarpa C. B. Wolf 1931-2-9 1829 Orange Santa Ana Canyon between Horseshoe Bend and Esperanza, over whire fence along RR. 137 Comment
  RSA488  Marah macrocarpa J. T. Howell 1927-6-6 45 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UC484230  Marah macrocarpa C. B. Wolf 1931-2-9 1819 Orange between Horseshoe Bend and Esperanza (on R.R. fence); Santa Ana Canyon 137 Comment
  UCR192630  Marah macrocarpa A. C. Sanders, Fred M. Roberts 2008-3-25 34524 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA0043354  Marrubium vulgare David Barrios 1991-5-8 21 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  RSA748270  Marrubium vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35511 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR193277  Marrubium vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35511 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  CAS-BOT-BC536064  Marsilea drummondii R. E. Riefner, Jr. 2008-6-22 08 -209 Orange City of Yorba Linda, Santa Ana Canyon, Santa Ana River, La Palma Ave., near Old Village Road 95 Comment
  UC1923821  Marsilea drummondii R. E. Riefner Jr. 2007-9-30 07 -415 Orange City of Yorba Linda, Santa Ana Canyon, urban runoff tributary to Santa Ana River, La Palma Ave. at Via Lomas De Yorba East. 110 Comment
  UC1925602  Marsilea drummondii R. E. Riefner Jr. 2008-6-22 08 -209 Orange City of Yorba Linda, Santa Ana Canyon, La Palma Ave. near Old Village Road; UTM (NAD 83) 11S 0433046E, 3747903N Comment
  UCD170385  Marsilea drummondii R. E. Riefner Jr. 2008-6-22 08- 209 Orange City of Yorba Linda, Santa Ana Canyon, Santa Ana River, La Palma Ave. near Old Village Road. 95 Comment
  UCR232927  Marsilea drummondii R. E. Riefner Jr. 2007-9-30 07- 415 Orange city of Yorba Linda, Santa Ana Canyon, urban runoff tributary to Santa Ana River. La Palma Ave. at Via Lomas de Yorba East 110 Comment
  UCR240180  Marsilea drummondii R. E. Riefner Jr. 2008-6-22 08- 209 Orange city of Yorba Linda, Santa Ana Canyon, Santa Ana River, La Palma Avenue near Old Village Road 96 Comment
  UC1543207  Matricaria discoidea Donald G. Nelson 1935-3-24 188 Orange s side Santa Ana Canyon (along highway to Riverside County, ne Orange County) Comment
  UCR192482  Matricaria matricarioides A. C. Sanders, Fred M. Roberts 2008-3-25 34514 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA653186  Medicago polymorpha David Barrios 1991-5-1 11 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle. (117 deg. 45' 00'' +4 28 / 33 deg. 52' 37'' + 37 51.5). 365 Comment
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Dec 5 2007
  RSA752609  Medicago polymorpha Justin M. Wood, Joy D. England 2009-7-27 1203 San Bernardino Chino Hills State Park. McDermont Spring. 351 Comment
  UCR192467  Medicago polymorpha A. C. Sanders, Fred M. Roberts 2008-3-25 34535 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR192632  Medicago polymorpha A. C. Sanders, Fred M. Roberts 2008-3-25 34522 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 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
  SD241018  Medicago rigidula A. C. Sanders, Fred M. roberts 2008-3-25 34527 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UCR192459  Medicago rigidula A. C. Sanders, Fred M. Roberts 2008-3-25 34527 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CDA35809  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-3-25 34521 Orange Peninsular Range; Santa Ana Mtns.; Weir Canyon, 4 miles east-north-east of Villa Park at south-east edge of Anaheim Hills. Comment
  RSA755560  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-3-25 34521 Orange Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  SBBG126176  Medicago truncatula A. C. Sanders with F. M. Roberts 2008-3-25 34521 Orange Weir Cyn, 4 mi ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
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Feb 28 2016
  SD237448  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-3-25 34521 Orange Peninsular Range: Santa Ana Mountains: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills (Black Star Canyon 7.5'Q) 259 Comment
  UCD170852  Medicago truncatula A. C. Sanders; Fred M. Roberts 2008-3-25 34521 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UCR192633  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-3-25 34521 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC281418  Melica imperfecta P. Munz; L. Street; G. Williams 1919-5-3 2659 Unknown Santa Ana River Canyon Comment
  CAS-BOT-BC281595  Melica imperfecta John Thomas Howell 1927-6-17 2547 Orange N side of Santa Ana Canon 152 Comment
  RSA62  Melica imperfecta J. T. Howell 1927-6-17 151 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA74  Melica imperfecta J. T. Howell 1928-3-17 877 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA749487  Melica imperfecta Fred M. Roberts, Linda Farley 2008-3-28 6821 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
  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
  CDA20831  Melilotus albus P. Akers 2006-3-25 PA 5 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River S of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  IRVC25157  Melilotus albus Fred M. Roberts 1986-9-3 3128 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA730996  Melilotus albus Fred M. Roberts 2006-11-15 6470 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  OBI7999  Melilotus indicus Kurt R. Neisess 1975-12-19 s.n. Orange Yorba Linda Comment
  RSA0043353  Melilotus indicus David Barrios 1991-5-1 7 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  RSA735035  Melilotus indicus Scott D. White, Justin M. Wood, Jason Berkley 2008-4-8 11828 San Bernardino Chino Hills: Chino Hills State Park, northridge trail and vicinity. 488 Comment
  RSA750902  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-7-3 35711 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR192468  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-3-25 34536 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR193759  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-7-3 35711 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA0014074  Mentzelia micrantha Fred M. Roberts 2008-5-28 7011 Orange Lomas de Santiago: Loma Ridge, south fork Rattlesnake Cyn., 2.0km above Rattlesnake Reservoir dam and 2.2km WNW Bee Peak. 230 Comment
  RSA734654  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, A. O Neal, D. E. Bramlet 2008-5-9 35313 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  SD236328  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, Amber ONeal 2008-5-9 35313 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 345 Comment
  UCR192111  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35313 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR217672  Mentzelia micrantha Fred M. Roberts 2008-5-28 7011 Orange South Coast, Lomas de Santiago, Loma Ridge, south fork of Rattlesnake Canyon, 2.0 km above Rattesnake Reservoir dam and 2.2 km west northwest of Bee Peak 230 Comment
  RSA642507  Microseris douglasii subsp. platycarpha D. E. Bramlet 1998-4-23 2608 Orange Chino Hills. Within the old Edison spur road, 20m east of the 500Kv towers. The site is 1.98km south of Telegraph Cyn. and 823m north of Blue Mud Cyn. 412 Comment
  RSA735022  Microseris heterocarpa Scott D. White, Justin M. Wood 2008-4-9 11842 San Bernardino Chino Hills: Chino Hills State Park, in and adjacent to the northern park boundary. To the west and southwest of the main park entrance. 366 Comment
  RSA749295  Microseris heterocarpa Fred M. Roberts, Linda Farley 2008-3-28 6817 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
  UCR199675  Microseris heterocarpa Scott D. White, Justin M. Wood 2008-4-9 11842 San Bernardino Chino Hills, Chino Hills State Park, in and adjacent to the northern park boundary, to the west and southwest of the main park entrance 512 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
  UCR192480  Microseris lindleyi A. C. Sanders, Fred M. Roberts 2008-3-25 34518 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA734650  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
  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
  OBI9534  Mimulus aurantiacus var. pubescens H. E. McMinn & M. Van Rensselaer, M. Van Rensselaer 1945-6-10 1912 Orange Slope on N side of Santa Ana River, Santa Ana Cyn Comment
  RSA542494  Mimulus aurantiacus var. pubescens Fred M. Roberts, Carol A. Roberts 1988-5-12 3965 Orange Anaheim Hills: Upper Deer Canyon, 7.7 km W Sierra Peak. 268 Comment
  UC943850  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-10 1912 Orange slope on n side Santa Ana River; Santa Ana Canyon Comment
  UCR16000  Mimulus aurantiacus var. pubescens Nancy Robb 1966-4-15 s.n. Orange 3 miles SE of Yorba Linda, 1 mi south of Santa Ana Canyon Road 122 Comment
  RSA749308  Mimulus brevipes Fred M. Roberts, Linda Farley 2008-3-28 7130 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
  RSA749994  Mimulus brevipes A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35318 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR194549  Mimulus brevipes A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35318 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA21062  Mimulus cardinalis Ramon Valverde 1938-8-4 9442 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA726  Mimulus cardinalis J. T. Howell 1927-7-6 283 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA727  Mimulus floribundus Thomas Howell 1927-7-27 492 Orange Santa Ana River bottom. Comment
  UCR193763  Mimulus floribundus A. C. Sanders, Fred M. Roberts 2008-7-3 35709 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA21061  Mimulus pilosus Ramon Valverde 1938-8-4 3231 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA719  Mimulus pilosus J. T. Howell 1927-7-27 491 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC388782  Minuartia douglasii Munz; Street; Williams 1919-5-3 2615 San Bernardino Santa Ana River Canon [Canyon] Comment
  POM6462  Minuartia douglasii P. A. Munz, L. T. Street, G. Williams 1919-5-3 2615 Orange Santa Ana River Canyon. 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
  CAS-BOT-BC434671  Mirabilis laevis var. crassifolia Munz; Street; Williams 1919-5-3 2672 Orange Santa Ana River Canon [Canyon] Comment
  POM6381  Mirabilis laevis var. crassifolia P. A. Munz, L. T. Street, G. Williams 1919-5-3 2672 Orange Santa Ana River Canyon. Comment
  RSA276  Mirabilis laevis var. crassifolia J. T. Howell 1927-6-21 176 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC221717  Monardella hypoleuca subsp. intermedia A. C. Sanders; Fred M. Roberts 2008-7-3 35683 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation corridor 415 Comment
  CAS-BOT-BC249028  Monardella hypoleuca subsp. intermedia A. C. Sanders; Fred M. Roberts 2008-7-3 35681 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA0013358  Monardella hypoleuca subsp. intermedia A. C. Sanders, Fred M. Roberts 2008-7-3 35683 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  SBBG127388  Monardella hypoleuca subsp. intermedia A. C. Sanders with F. M. Roberts 2008-7-3 35683 Orange Weir Cyn, off Windy Ridge Rd below saddle on ridge above the Eastern Transportation Corridor; Santa Ana Mtns 365 Comment
  UCR193799  Monardella hypoleuca subsp. intermedia A. C. Sanders, Fred M. Roberts 2008-7-3 35683 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR193800  Monardella hypoleuca subsp. intermedia A. C. Sanders, Fred M. Roberts 2008-7-3 35681 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  CAS-BOT-BC349571  Monolopia lanceolata Carl B. Wolf 1932-3-14 2709 Orange Rancho Santa Ana Botanic Garden, native to slope below Pinus radiata bed 192 Comment
  RSA67  Muhlenbergia asperifolia J. T. Howell 1927-7-19 446 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC275294  Muhlenbergia microsperma John Thomas Howell 1927-6-5 2436 Orange Santa Ana Canon, N side 152 Comment
  POM193518  Muhlenbergia microsperma J. B. Feudge 1929-4-7 2035 Orange Rancho Santa Ana, N.E. Orange County. 305 Comment
  RSA59  Muhlenbergia microsperma J. T. Howell 1927-6-5 37 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA6660  Nassella cernua B. D. Stark 1933-5-2 4546 Orange Rancho Santa Ana. 457 Comment
  RSA725465  Nassella cernua Fred M. Roberts, Megan Lulow 2007-7-30 6577 Orange ridge where Gypsum, Blind, and Wier Canyons meet, 3.5 km E Robbers Peak, North Irvine Ranch Policy Area. 456 Comment
  CAS-BOT-BC259969  Nassella lepida John Thomas Howell 1927-6-9 2464 Orange N side of Santa Ana Canon [Santa Ana Canyon] 152 Comment
  RSA70  Nassella lepida J. T. Howell 1927-6-9 65 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC260105  Nassella pulchra John Thomas Howell 1927-6-9 2467 Orange N side, Santa Ana Canon [Santa Ana Canyon] 152 Comment
  POM182189  Nassella pulchra Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon Comment
  RSA653208  Nassella pulchra David Barrios 1991-5-8 20 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
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Jul 23 2008
  RSA735014  Nassella pulchra Scott D. White, Justin M. Wood 2008-4-9 11834 San Bernardino Chino Hills State Park, in and adjacent to the northern park boundary. To the west and southwest of the main park enterance. 366 Comment
  UC822007  Nassella pulchra B. D. Stark 1933-5-2 4546 Orange Roundtop Rancho Santa Ana, Santa Ana Canyon 457 Comment
  CAS-BOT-BC60333  Nasturtium officinale John Thomas Howell 1927-7-15 2777 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  CDA20832  Nasturtium officinale P. Akers 2006-3-25 PA 6 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River S of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  RSA330  Nasturtium officinale J. T. Howell 1927-7-15 404 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  RSA751888  Nasturtium officinale Justin M. Wood, J. D. England 2009-7-27 1216 San Bernardino Chino Hills State Park. McDermont Spring. 351 Comment
  POM201688  Navarretia atractyloides L. M. Booth 816 Orange Santa Ana Canyon Comment
  RSA16383  Navarretia atractyloides E. R. Johnson 1935-6-11 7133 Orange Rancho Santa Ana, Santa Ana Canyon grain field west of grapefruit orchard. 137 Comment
  CAS-BOT-BC109089  Nemacaulis denudata var. denudata E. K. Balls; P. C. Everett 1955-9-7 21431 Orange On Highway 101, mouth of Santa Ana River. 3 Comment
  RSA616  Nemophila menziesii J. T. Howell 1928-3-18 889 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  RSA687  Nicotiana bigelovii var. wallacei J. T. Howell 1927-7-5 266 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  CAS-BOT-BC231676  Nicotiana glauca Ira L. Wiggins 1965-11-6 20348 Orange Near Well No. 14, Kraemer Oil Estates near end of county road leading to Rancho Sanata Ana Comment
  RSA701605  Nicotiana glauca Minor Warne 1934-2-1 s.n. Orange Santa Ana Mountains Comment
  RSA751791  Nicotiana glauca A. C. Sanders, Fred M. Roberts 2008-7-3 35687 Orange Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  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
  GH357552  Nolina cismontana P. A. Munz 1923-7-8 7329 Unknown Santa Ana River Canyon, Orange Co. Comment
  GH357553  Nolina cismontana P. A. Munz & I. M. Johnston 1922-5-18 5315 Unknown Santa Ana River Canyon, Santa Ana Mts, 3 mi south of Orange Co. line Comment
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Dec 2 2014
  GH357554  Nolina cismontana P. A. Munz & I. M. Johnston 1922-5-18 5315 Unknown Santa Ana River Canyon, Santa Ana Mts, 3 mi south of Orange Co. line Comment
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Dec 2 2014
  POM14399  Nolina cismontana Philip A. Munz, Johnston 1922-5-18 5315 Orange Santa Ana River Canyon, 3 miles south of Orange Co. line Comment
  RSA127  Nolina cismontana J. T. Howell 1927-7-28 507 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
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Apr 8 2018
  RSA20634  Nolina cismontana Philip A. Munz 1923-7-8 7329 Orange Santa Ana River Canyon Comment
  RSA70254  Nolina cismontana Philip A. Munz, I. M. Johnston 1922-5-18 3026 Orange Canyon heading east from Santa Ana River 229 Comment
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Apr 8 2018
  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
  UCR192095  Nolina cismontana A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35290 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR209367  Nolina cismontana Fred M. Roberts, Linda Farley 2008-3-28 6832 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  RSA531  Oenanthe sarmentosa J. T. Howell 1927-7-14 398 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA1304  Oenothera elata subsp. hirsutissima J. T. Howell 1928-9-6 1205 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA38442  Oenothera elata subsp. hirsutissima P. A. Munz 1947-9-10 12133 Orange Edge of garden in rover nottom, Rancho Santa Ana, Santa Ana River Canyon. 122 Comment
  SD43505  Oenothera elata subsp. hirsutissima P. A. Munz 1947-9-10 12133 Orange Edge of garden in river bottom, Rancho Santa Ana, Santa Ana River Canyon. 121 Comment
  CAS-BOT-BC56807  Opuntia John Thomas Howell 1927-6-22 2573 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  CAS-BOT-BC56216  Opuntia ficus-indica John Thomas Howell 1927-6-22 2574 Orange Field redacted by CAS, contact the data manager for more information Comment
  RSA459611  Opuntia littoralis var. austrocalifornica M. B. Dunkle 1933-5-30 3583 Orange Santa Ana River Canyon Comment
  CAS-BOT-BC56864  Opuntia oricola B. D. Stark 1933-1-26 4527 Orange Field redacted by CAS, contact the data manager for more information 182 Comment
  RSA6608  Opuntia oricola B. D. Stark 1933-1-26 4527 Orange Rancho Santa Ana. Comment
  CAS-BOT-BC58075  Opuntia vaseyi John Thomas Howell 1927-6-22 2574 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  UCR193274  Orobanche fasciculata A. C. Sanders, Fred M. Roberts 2008-6-17 35508 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA650905  Orthocarpus purpurascens Diane T. Liggett 1981-5-16 11 Orange Riverside Freeway (91) east to Imperial Hwy, south to Nohl Ranch Road, east to Serrano Ave., south on Hidden Cyn. Road, 1.2 km into Weir Cyn. Comment
  CAS-BOT-BC355769  Osmadenia tenella A. C. Sanders; Fred M. Roberts; Amber O'Neal 2008-5-9 35323 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  CAS-BOT-BC355773  Osmadenia tenella Munz; Street; Williams 1919-5-3 2631 Orange Santa Ana River Canon [Canyon] Comment
  CAS-BOT-BC355778  Osmadenia tenella John Thomas Howell 1927-7-28 2867 Orange On n. side of Santa Ana Canon [Canyon] 182 Comment
  JEPS13141  Osmadenia tenella Frank W. Peirson 1922-5-18 1353 Orange Santa Ana Canyon 121 Comment
  JEPS20235  Osmadenia tenella J. Thomas Howell 1927-7-28 2867 Orange Santa Ana Canyon 182 Comment
  UC421704  Osmadenia tenella John Thomas Howell 1927-7-28 2867 Orange Santa Ana Canyon 182 Comment
  RSA518448  Oxalis albicans subsp. californica C. W. Tilforth, Dorothy Tilforth 1977-3-6 1258 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  RSA421  Oxalis californica J. T. Howell 1927-6-16 144 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA731941  Oxalis corniculata Fred M. Roberts, Sandy Leatherman 2007-11-27 6694 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 Comment
  RSA7752  Oxalis pes-caprae E. R. Johnson 1932-07 s.n. Orange Edge of orange grove along river bottom, Rancho Santa Ana Comment
  CAS-BOT-BC121211  Paeonia californica J. T. Howell 1927-6-6 2425 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA303  Paeonia californica J. T. Howell 1927-6-6 50 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA700031  Paeonia californica Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  RSA700033  Paeonia californica R. H. McArthur 1934-2-17 s.n. Orange Gypsum Canyon. Comment
  RSA735044  Paeonia californica Scott D. White, Justin M. Wood, Jason Berkley 2008-4-8 11826 San Bernardino Chino Hills: Chino Hills State Park, northridge trail and vicinity. 488 Comment
  RSA60  Panicum capillare J. T. Howell 1927-7-27 489 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA651754  Panicum capillare Diane T. Liggett 1981-5-16 18 Orange Freeway (91) east to Gypsum Cyn. Road, north ot Featherly Park entrance, east to bike trail, .1 km east. Comment
  UCR2620  Panicum capillare F. M. Reed 1927-10-13 5624 Orange Transverse Range; Santa Ana Mtns; Santa Ana River Canyon, Santa Ana River channel above Sulphur Slide [Hill] 152 Comment
  RSA731536  Panicum dichotomiflorum subsp. dichotomiflorum R. E. Riefner 2007-9-30 7 -417 Orange City of Yorba Linda, N floodplain of Santa Ana River near Yorba Linda Regional Park. 98 Comment
  RSA731538  Panicum dichotomiflorum subsp. dichotomiflorum R. E. Riefner 2007-9-30 7 -416 Orange City of Yorba Linda, Santa Ana Canyon, La Palma Ave. at Via Lomas De Yorba East. 110 Comment
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Dec 21 2011
  RSA724122  Panicum virgatum R. E. Riefner 2006-9-19 6 -439 Orange City of Anaheim, N side of Santa Ana River channel, Santa Ana Canyon, W (downstream) ca. 1.25 mi from Green River Golf Course. 118 Comment
  IRVC22980  Parkinsonia aculeata Karlin G. Marsh 1986-9-12 s.n. Orange Yorba Linda; Santa Ana Canyon, Santa Ana River, north side, Featherly Park south of Esperanza Rd. Santa Ana Mountains 105 Comment
  RSA1102  Paspalum distichum J. T. Howell 1928-9-6 1206 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA21040  Paspalum distichum E. R. Johnson 1938-8-22 9452 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA784195  Paspalum distichum J. D. Olmsted 1959-9-22 980 Orange North of Santa Ana Mtns. Drainage area to Pacific Ocean: Along Santa Ana River just north of Sycamore Park and near intersection of stream from 3M clay works to the south. 137 Comment
  RSA765882  Paspalum pubiflorum R. E. Riefner Jr. 2007-12-2 07 -503 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
  RSA766069  Paspalum pubiflorum R. E. Riefner Jr. 2007-9-30 07 -419 Orange City of Yorba Linda, Santa Ana Canyon, N bank of Santa Ana River, vicinity of La Palma Ave. and Via Lomas De Yorba East. 110 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
  UC2061655  Paspalum pubiflorum R. E. Riefner Jr. 2007-12-2 07 -503 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. Comment
  UC2061664  Paspalum pubiflorum R. E. Riefner Jr. 2007-9-30 07 -419 Orange City of Yorba Linda, Santa Ana Canyon, N bank of Santa Ana River, vicinity of La Palma Ave. and Via Loma De Yorba East. Comment
  UCR192629  Pectocarya linearis A. C. Sanders, Fred M. Roberts 2008-3-25 34525 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA649  Pectocarya penicillata J. T. Howell 1928-2-26 861 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC67734  Pellaea andromedifolia John Thomas Howell 1927-6-17 2551 Orange Hills on north side of Santa Ana Canyon 152 Comment
  SBBG54517  Pellaea andromedifolia J. T. Howell 1927-6-17 2551 Orange Santa Ana Cyn 152 Comment
  RSA10  Pellaea mucronata var. mucronata J. T. Howell 1927-8-7 609 San Diego Between Cottonwood Creek and Potrero. 457 Comment
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Sep 20 2014
  CDA2157  Pennisetum clandestinum Margaret Bellue, Johnson Oct 1944 Orange Yorba Linda. 0 Comment
  RSA0015000  Pennisetum setaceum Fred M. Roberts, David E. Bramlet 2008-5-13 6957 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  UCR236680  Pennisetum villosum Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7102 Orange Peninsular Ranges, Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana River, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river 87 Comment
  UC718211  Penstemon laetus var. laetus Carl B. Wolf 1936-4-28 7778 Orange Santa Ana Canyon Botanic Garden s Adm. Bldg. (Rancho Santa Ana); , Santa Ana Canyon Botanic Garden 198 Comment
  CAS-BOT-BC330342  Pentachaeta aurea P. C. Everett 1935-4-22 6463 Orange Santa Ana Canyon, 0.25 mi W of Horseshoe Bend 121 Comment
  CAS-BOT-BC330343  Pentachaeta aurea P. C. Everett 1935-4-22 6463 Orange Santa Ana Canyon, 0.25 mi W of Horseshoe Bend 121 Comment
  LA210549  Pentachaeta aurea P. C. Everett; 1935-4-22 6463 Orange Santa Ana Canyon, 0.25 mi W of Horseshoe Bend. 121 Comment
  RSA13057  Pentachaeta aurea Percy C. Everett 1935-4-22 6463 Orange 1/4 mile W of Horseshoe Bend, Santa Ana Canyon 122 Comment
  UC718583  Pentachaeta aurea P. C. Everett 1935-4-22 6463 Orange 1/4 mi w Horseshoe Bend; Santa Ana Canyon 121 Comment
  RSA0076303  Pentagramma glanduloviscida J. T. Howell 1927-8-7 608 San Diego Between Cottonwood Creek and Potrero. 457 Comment
  RSA21070  Petunia parviflora Ramon Valverde 1938-8-4 9434 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA689  Petunia parviflora J. T. Howell 1927-7-18 426 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  JEPS2193  Phacelia cicutaria var. hispida Alice King May 1907 Orange Santa Ana Canyon Comment
  RSA497761  Phacelia cicutaria var. hispida M. B. Dunkle 1933-5-30 3577 Orange Santa Ana Canyon. Comment
  RSA595  Phacelia cicutaria var. hispida J. T. Howell 1927-6-5 35 Orange Rancho Santa Ana, near east boundary. 152 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
  RSA734814  Phacelia cicutaria var. hispida A. C. Sanders, Fred M. Roberts 2008-3-25 34575 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  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
  UCR192455  Phacelia cicutaria var. hispida A. C. Sanders, Fred M. Roberts 2008-3-25 34575 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UCR209379  Phacelia cicutaria var. hispida Fred M. Roberts, Linda Farley 2008-3-28 6820 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  RSA201438  Phacelia distans J. T. Howell 1928-1-15 3277 Orange Near the Ranch House. Rancho Santa Ana. 152 Comment
  RSA606  Phacelia distans J. T. Howell 1928-3-18 892 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  RSA647939  Phacelia distans Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 39 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 244 Comment
  RSA603  Phacelia imbricata subsp. bernardina J. T. Howell 1928-5-12 965 Orange Between Aliso Canyon and Botany Garden. 366 Comment
  RSA13058  Phacelia minor Percy C. Everett 1935-4-22 6464 Orange Along Santa Fe Rail Road above the pear orchard, Rancho Santa Ana, Santa Ana Canyon. 107 Comment
  RSA17169  Phacelia minor Percy C. Everett 1935-4-22 6464 Orange Along Santa Fe Rail Road above the pear orchard, Rancho Santa Ana, Santa Ana Canyon. 107 Comment
  RSA20370  Phacelia minor Percy C. Everett 1938-4-11 9399 Orange Rancho Santa Ana, Santa Ana Canyon, north of Pear Orchard. 122 Comment
  RSA596  Phacelia minor J. T. Howell 1928-4-7 906 Orange Near the ranch houses, Rancho Santa Ana. 152 Comment
  POM6467  Phacelia parryi P. A. Munz, L. T. Street, Williams 1919-5-3 2639 Orange Santa Ana River Canyon Comment
  RSA20369  Phacelia parryi Percy C. Everett 1938-4-11 9400 Orange Rancho Santa Ana, Santa Ana canyon, N of W end of Walnut orchard. 122 Comment
  RSA697793  Phacelia parryi R. H. McArthur 1934-3-17 s.n. Orange Gypsum Canyon. Comment
  UCR192504  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-3-25 34551 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  GH401056  Phacelia ramosissima J. T. Howell 1927-6-3 2417 Unknown Southern Puente Hills, Santa Ana Canyon Comment
  RSA739553  Phacelia ramosissima A. C. Sanders, Fred M. Roberts 2008-7-3 35665 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UCR193556  Phacelia ramosissima A. C. Sanders, Fred M. Roberts 2008-7-3 35665 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  CAS-BOT-BC144975  Phacelia ramosissima var. austrolitoralis John Thomas Howell 1927-6-3 2417 Orange On sandy ridge, southern Puente Hills, Santa Ana Canyon 152 Comment
  RSA632  Phacelia ramosissima var. austrolitoralis J. T. Howell 1927-6-3 21 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC145005  Phacelia ramosissima var. latifolia John Thomas Howell 1927-6-21 2567 Orange Arroyo in hills on north side of Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC145006  Phacelia ramosissima var. latifolia John Thomas Howell 1927-6-21 2567 Orange [Canon] Canyon in west side of Botany Garden, Rancho Santa Ana, Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC154389  Phacelia ramosissima var. latifolia John Thomas Howell 1927-7-16 2780 Orange hill on north side of Santa Ana [Canon] Canyon 152 Comment
  UC702949  Phacelia ramosissima var. latifolia John Thomas Howell 1927-6-3 2417 Orange Santa Ana Canyon Southern Puente Hills Comment
  RSA738990  Phacelia viscida Minor Warne 1934-3-17 s.n. Orange Gypsum Canyon 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
  CAS-BOT-BC250616  Phalaris minor Carl B. Wolf 1932-5-18 3636 Orange Rancho Santa Ana Botanic Garden, near East porch of administration bldg. 198 Comment
  RSA749050  Phoenix canariensis A. C. Sanders, Fred M. Roberts 2008-8-7 36007 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UCR195000  Phoenix canariensis A. C. Sanders, Fred M. Roberts 2008-8-7 36007 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UCR888  Pholistoma auritum S. M. Chambers 1970-5-3 13 Orange Carbon Canyon Road, 2 mi SE of La Vida Mineral Springs Comment
  CAS-BOT-BC222602  Pholistoma auritum var. auritum John Thomas Howell 1927-6-17 s.n. Orange Santa Ana Canon [Canyon] 152 Comment
  RSA750925  Phoradendron macrophyllum A. C. Sanders, Fred M. Roberts 2008-7-3 35699 Orange Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  UCR193776  Phoradendron macrophyllum A. C. Sanders, Fred M. Roberts 2008-7-3 35699 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  RSA751289  Phoradendron villosum A. C. Sanders, Fred M. Roberts 2008-7-3 35673 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UCR193791  Phoradendron villosum A. C. Sanders, Fred M. Roberts 2008-7-3 35673 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA650  Phyla lanceolata J. T. Howell 1927-7-15 401 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  RSA23579  Physalis acutifolia E. R. Johnson 1939-9-8 9537 Orange Santa Ana Canyon, Rancho Santa Ana., in #2 Valencia Orange Grove. 122 Comment
  JEPS8966  Physalis philadelphica John Thomas Howell 1927-7-28 2869 Orange Santa Ana Canyon, Rancho Santa Ana Santa Ana Canyon; , Rancho Santa Ana 152 Comment
  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
  SD43531  Physalis philadelphica P. A. Munz 1946-11-7 11607 Orange near Administration Building, Rancho Santa Ana Botanic Garden, Santa Ana River Canyon 198 Comment
  RSA17043  Picris echioides C. B. Wolf 1936-1-13 7696 Orange Santa Ana Canyon, Rancho Santa Ana, along R. R. right of way east of Ranch Houses. 137 Comment
  RSA752613  Picris echioides Justin M. Wood, J. D. England 2009-7-27 1207 San Bernardino Chino Hills State Park. McDermont Spring. 351 Comment
  MACF019826  Pinus attenuata T. Pringle 1966-5-20 124 Orange In Ranch Santa Ana, at the end of Orangethorpe Ave. Yorba Linda in full sun. Comment
  OBI7737  Pinus coulteri Carl B. Wolf, P. C. Everett 1939-1-10 10008 Orange Santa Ana Botanic Gardens cultivated. Old nursery outside seed bed Comment
  POM6289  Piperia cooperi Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2638 Orange Santa Ana River Canyon. Comment
  RSA735973  Piptatherum miliaceum Scott D. White, Justin M. Wood 2008-4-22 11905 Orange Telegraph Canyon Road, E of Carbon Canyon Regional Park. 152 Comment
  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
  SD234854  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-3-25 34542 Orange Peninsular Range: Santa Ana Mountains: Weir Canyon, 4 mile ENE of Villa Park at SE edge of Anaheim Hills (Black Star Canyon 7.5' Q) 259 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
  RSA4499  Plagiobothrys collinus var. californicus C. B. Wolf 1932-3-14 2710 Orange At west side of Botanic Garden(this is the only known patch in the vicinity of the B.g.) 192 Comment
  SD27970  Plagiobothrys collinus var. californicus Carl B. Wolf 1932-3-14 2710 Orange Rancho Santa Ana Botanic Garden 630 Comment
  RSA749286  Plantago erecta Fred M. Roberts, Linda Farley 2008-3-28 6834 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  RSA749486  Plantago erecta Fred M. Roberts, Linda Farley 2008-3-28 6815 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
  RSA759  Plantago erecta J. T. Howell 1928-3-17 868 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR209373  Plantago erecta Fred M. Roberts, Linda Farley 2008-3-28 6815 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
  UCR209377  Plantago erecta Fred M. Roberts, Linda Farley 2008-3-28 6834 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
  RSA17217  Plantago hirtella var. galeottiana E. R. Johnson 1936-6-26 8006 Orange Rancho Santa Ana, Santa Ana Canyon, SW of Mexican village. 152 Comment
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Aug 19 2011
  RSA762  Plantago hirtella var. galeottiana J. T. Howell 1927-7-27 493 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
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Aug 19 2011
  RSA730990  Plantago lanceolata Fred M. Roberts 2006-11-15 6464 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
  RSA760  Plantago ovata var. fastigiata J. T. Howell 1928-2-7 818 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA763  Plantago ovata var. fastigiata J. T. Howell 1927-6-9 70 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  CAS-BOT-BC175661  Platanus racemosa A. C. Sanders; Fred M. Roberts 2008-7-3 35700 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  POM201790  Platanus racemosa L. M. Booth 810 Orange Santa Ana Canyon. Comment
  RSA355  Platanus racemosa J. T. Howell 1928-2-26 858 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA698371  Platanus racemosa Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  RSA698372  Platanus racemosa R. H. McArthur 1934-2-17 s.n. Orange Gypsum Canyon. Comment
  RSA731911  Platanus racemosa Fred M. Roberts, Sandy Leatherman 2007-11-27 6668 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  RSA750924  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-7-3 35700 Orange Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  SD234464  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-7-3 35700 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir (Black Star Canyon 7.5' Q) 242 Comment
  UCR193772  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-7-3 35700 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  CAS-BOT-BC92245  Platystemon californicus Carl B. Wolf 1932-3-14 2713 Orange Rancho Santa Ana Botanic Garden, near the Chrysothamnus beds. 192 Comment
  CAS-BOT-BC356102  Pluchea odorata John Thomas Howell 1927-9-24 3117 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  RSA151079  Pluchea odorata P. H. Raven 1961-10-15 16855 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  RSA542591  Pluchea odorata Fred M. Roberts, Doug Willick 1988-9-16 4138 Orange Peralata Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.0 kilmeter N Robbers Peak. 180 Comment
  UC421657  Pluchea odorata var. odorata John Thomas Howell 1927-9-24 3117 Orange Santa Ana Canyon 152 Comment
  CAS-BOT-BC326616  Pluchea sericea John Thomas Howell 1927-7-24 2823 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  CAS-BOT-BC326617  Pluchea sericea John Thomas Howell 1927-7-21 2815 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  POM201633  Pluchea sericea L. M. Booth 835 Orange Santa Ana Canyon. Comment
  RSA5323  Pluchea sericea B. D. Stark 1932-12-30 4472 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  UC1070061  Pluchea sericea A. Lewis Mar 1934 333 Orange Santa Ana Canyon Corona Quad. 121 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
  RSA731943  Poa annua Fred M. Roberts, Sandy Leatherman 2007-11-27 6692 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA73  Poa secunda J. T. Howell 1928-2-7 830 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  RSA749472  Poa secunda subsp. secunda Fred M. Roberts, Linda Farley 2008-3-28 6827 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  UCR209369  Poa secunda subsp. secunda Fred M. Roberts, Linda Farley 2008-3-28 6827 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
  RSA5379  Polygala cornuta var. fishiae B. D. Stark 1932-12-30 4460 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  UC729950  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-6-20 3755 Orange around administration building; Santa Ana Canyon, Rancho Santa Ana 198 Comment
  RSA21059  Polygonum fusiforme Ramon Valverde 1938-8-4 9445 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA195  Polygonum hydropiperoides J. T. Howell 1927-7-5 268 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA731907  Polygonum lapathifolium Fred M. Roberts, Sandy Leatherman 2007-11-27 6672 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  RSA731931  Polygonum lapathifolium Fred M. Roberts, Sandy Leatherman 2007-11-27 6679 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 Comment
  RSA731946  Polygonum lapathifolium Fred M. Roberts, Sandy Leatherman 2007-11-27 6689 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 Comment
  RSA730991  Polygonum punctatum Fred M. Roberts 2006-11-15 6465 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  RSA21  Polypodium californicum J. T. Howell 1928-2-7 810 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA264148  Polypodium californicum C. W. Tilforth 1977-3-6 1255 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  RSA749436  Polypodium californicum Fred M. Roberts 2008-4-14 6890 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork, 3.4 km E Robbers Peak, Irvine Ranch Conservancy. 433 Comment
  UCR209348  Polypodium californicum Fred M. Roberts 2008-4-14 6890 Orange Santa Ana Mountains, Upper Weir Canyon, east fork, 3.4 km eat of Robbers Peak, Irvine Ranch Conservancy 433 Comment
  CAS-BOT-BC232412  Polypogon monspeliensis P. Munz; L. Street; G. Williams 1919-5-3 2655 Los Angeles Santa Ana River Canon [Canyon] Comment
  CAS-BOT-BC237266  Polypogon monspeliensis John Thomas Howell 1927-6-21 2570 Orange On N side of Santa Ana Canon [Canyon] 152 Comment
  RSA731923  Polypogon viridis Fred M. Roberts, Sandy Leatherman 2007-11-27 6687 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA756311  Polypogon viridis A. C. Sanders, Fred M. Roberts 2008-7-3 35703 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA132  Populus X parryi J. T. Howell 1928-2-26 860 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  GH382191  Populus balsamifera subsp. trichocarpa R. E. Riefner 2008-6-22 08 -210 Unknown City of Yorba Linda, Santa Ana Canyon, Santa Ana River, La Palma Ave. near Old Village Rd. 110 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
  RSA735118  Populus balsamifera subsp. trichocarpa R. E. Riefner 2008-6-22 8 -210 Orange City of Yorba Linda, Santa Ana Canyon, Santa Ana River, La Palma Ave. near Old Village Rd. 111 Comment
  UCR240176  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2012-9-23 12- 512 Orange city of Yorba Linda, Santa Ana Canyon, north side of Santa Ana River, La Palma Avenue at Via Del Rio Road 104 Comment
  RSA17460  Populus fremontii Carl B. Wolf 1936-9-23 8724 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA5327  Populus fremontii B. D. Stark 1932-12-30 4468 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA542356  Populus fremontii Fred M. Roberts Jr. 1987-5-12 3436 Orange Santa Ana River: Horseshoe Bend, 3.9km S San Juan Hill; 1.0km ENE Wier Canyon Road bridge. 104 Comment
  RSA731918  Populus fremontii subsp. fremontii Fred M. Roberts, Sandra Leatherman 2007-11-27 6661 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  CAS-BOT-BC105607  Populus trichocarpa Carl B. Wolf 1932-2-15 2656 Orange Rancho Santa Ana Botanic Garden, north of administration building 182 Comment
  CAS-BOT-BC105608  Populus trichocarpa John Thomas Howell 1927-7-21 2809 Orange On edge of marshy place but above water, Santa Ana River bottom, Santa Ana Canyon [Canon] 152 Comment
  CAS-BOT-BC438781  Populus trichocarpa R. E. Riefner, Jr. 2012-9-23 12 -512 Orange City of Yorba Linda, Santa Ana Canyon, N. side of Santa Ana River, La Palma Ave. at Via Del Rio Rd. 103 Comment
  RSA133  Populus trichocarpa J. T. Howell 1927-7-21 451 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA5326  Populus trichocarpa B. D. Stark 1932-12-30 4469 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA542355  Populus trichocarpa Fred M. Roberts Jr. 1987-5-12 3437 Orange Santa Ana River: Horseshoe Bend, 3.9km S San Juan Hill; 1.0km ENE Wier Canyon Road bridge. 104 Comment
  RSA725795  Populus trichocarpa R. E. Riefner 2006-9-16 06 -434 Orange Yorba Linda, north of Chapman Ave. c. 1 mile along floodplain of Santa Ana River. 98 Comment
  SD247501  Populus trichocarpa R. E. Riefner Jr. 2012-9-23 12 512 Orange City of Yorba Linda, Santa Ana Canyon, N side of Santa Ana River, La Palma Ave at Via Del Rio Road. 103 Comment
  UC1134818  Populus trichocarpa A. Lewis Mar 1934 336 Orange Santa Ana Canyon; Corona Quad., Santa Ana Canyon Comment
  UCR182825  Populus trichocarpa R. E. Riefner Jr. 2006-9-16 06- 434 Orange Yorba Linda, north of Chapman Ave. c. 1 mile along floodplain of Santa Ana River 98 Comment
  CAS-BOT-BC356150  Porophyllum gracile John Thomas Howell 1927-7-28 2865 Orange Hills on n. side of Santa Ana Canon [Canyon] 182 Comment
  CAS-BOT-BC356151  Porophyllum gracile John Thomas Howell 1929-3-2 4097 Orange In hills on n. side of Santa Ana Canon [Canyon], 1/2 mile east of Horseshoe Bend 152 Comment
  JEPS34990  Porophyllum gracile John Thomas Howell 1927-7-28 2865 Orange Santa Ana Canyon, Rancho Santa Ana 152 Comment
  POM180684  Porophyllum gracile J. T. Howell 1929-3-2 4097 Orange Rocky hills on N side of Santa Ana Canyon. 152 Comment
  RSA50431  Prunella vulgaris var. lanceolata G. R. Campbell 1949-6-28 13991 Orange grown in Botanic Garden. Comment
  CAS-BOT-BC300504  Prunus ilicifolia subsp. lyonii 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
  CAS-BOT-BC356795  Pseudognaphalium californicum John Thomas Howell 1927-6-24 2588 San Bernardino Aliso Canon [Canyon], southern Puente Hills near the Santa Ana Canon [Canyon] 365 Comment
  UC484151  Pseudognaphalium leucocephalum J. T. Howell 1928-9-6 1208 Orange Rancho Santa Ana Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR194995  Pseudognaphalium luteoalbum A. C. Sanders, Fred M. Roberts 2008-8-7 36002 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UC68911  Pseudognaphalium microcephalum H. M. Hall 1905-7-1 6730 Orange Santa Ana Canon 121 Comment
  RSA749999  Pterostegia drymarioides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35324 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  UCR192483  Pterostegia drymarioides A. C. Sanders, Fred M. Roberts 2008-3-25 34510 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR194553  Pterostegia drymarioides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35324 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  RSA38191  Pulicaria hispanica P. A. Munz 1946-10-2 11554 Orange Santa Ana River Canyon, Rancho Santa Ana 122 Comment
  RSA591804  Pulicaria hispanica P. H. Raven 1961-10-15 16857 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  CAS-BOT-BC362140  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange N. facing slope of the Santa Ana Canyon, 0.1 mi. s. of Riverside Freeway to Anaheim, ca. 2 mi. w. of the Riverside Co. line in Orange Co. Comment
  CAS-BOT-BC362141  Pulicaria paludosa R. G. Ahlefeld 1959-7-15 s.n. Orange Santa Ana Canyon, e. of Fullerton Comment
  CAS-BOT-BC362142  Pulicaria paludosa R. L. Pope 1963-9-23 s.n. Orange Santa Ana Canyon about 1.5 miles above Yorba Linda Bridge Comment
  CAS-BOT-BC362143  Pulicaria paludosa R. L. Pope 1959-8-14 s.n. Orange Ray Miller Property, east of Fullerton, Santa Ana River Canyon Comment
  CAS-BOT-BC362144  Pulicaria paludosa R. L. Pope 1961-9-1 s.n. Orange Ray Miller Property, east of Fullerton, Santa Ana River Canyon Comment
  CAS-BOT-BC362145  Pulicaria paludosa Robert L. Pope 1960-7-9 s.n. Orange Roadside approximately 0.5 mile north of Yorba Linda turnoff, Santa Ana Canyon Comment
  CAS-BOT-BC362146  Pulicaria paludosa Robert L. Pope 1959-8-14 s.n. Orange Ray Miller prop., Santa Ana Canyon, e. of Fullerton Comment
  IRVC25158  Pulicaria paludosa Fred M. Roberts 1986-9-3 3127 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA750903  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-7-3 35710 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA783437  Pulicaria paludosa J. D. Olmsted 1959-9-22 991 Orange Near Sycamore Park along Santa Ana River by junction of industrial waters from the 3 M clay works to the south; 8-9 miles W of Corona; base of north Santa Ana Mts. 137 Comment
  UCD148359  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange North facing slope of the Santa Ana Canyon, 0.1 mile south of Riverside Freeway to Anaheim. Around 2 miles west of the Riverside county line in Orange County. Comment
  UCR193770  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-7-3 35710 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  CAS-BOT-BC61814  Quercus agrifolia John Thomas Howell 1927-6-21 2565 Orange hills on north side of Santa Ana Canon 152 Comment
  RSA154  Quercus agrifolia J. T. Howell 1927-6-21 179 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA697032  Quercus agrifolia Minor Warne 1934-5-10 s.n. Orange Santa Ana Mountains. Comment
  RSA751190  Quercus agrifolia var. agrifolia A. C. Sanders 2008-7-3 35684 Orange Upper Weir Canyon, along Windy Ridge Road at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  RSA12734  Quercus berberidifolia E. R. Johnson 1933-11 5557 Orange Rancho Santa Ana. Comment
  RSA164  Quercus berberidifolia J. T. Howell 1927-6-16 143 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA17561  Quercus berberidifolia E. R. Johnson 1936-4-10 7767 Orange Santa Ana Canyon, Rancho Santa Ana, toward the head of box canyon to the north of the pear orchard. 168 Comment
  RSA7576  Quercus berberidifolia E. R. Johnson 1933-11 5559 Orange Rancho Santa Ana. Comment
  UC718161  Quercus berberidifolia E. R. Johnson Nov 1933 San Bernardino Rancho Santa Ana 182 Comment
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Mar 18 2015
  UCR193768  Quercus berberidifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35678 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UC1135378  Quercus chrysolepis H. E. Norton 1931-3-20 46 Orange Corona Quad. Comment
  CAS-BOT-BC86387  Quercus dumosa John Thomas Howell 1927-6-16 2542 Orange ridge N side of Santa Ana canyon 152 Comment
  RSA477309  Quercus lobata M. R. Everett 1941-07 20279 Orange Santa Ana Canyon Comment
  CAS-BOT-BC383076  Quercus suber R. E. Riefner, Jr. 2005-4-15 05 -206 Orange City of Yorba Linda, Yorba Linda Regional Park along East La Palma Ave., W of Yorba Linda Blvd; Parking Lot #1 89 Comment
  SD247439  Quercus suber R. E. Riefner Jr. 2014-4-29 14 89 Orange City of Yorba Linda, Yorba Linda Regional Park along East La Palma Ave., W of Yorba Llinda Blvd; Parking Lot #7. 92 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
  CAS-BOT-BC362482  Rafinesquia californica Munz; Street; Williams 1919-5-3 2674 Los Angeles Santa Ana River Canon [Canyon] Comment
  CAS-BOT-BC362529  Rafinesquia californica John Thomas Howell 1927-6-24 2581 San Bernardino Aliso Canon [Canyon], southern Puente Hills near the Santa Ana Canon [Canyon] 274 Comment
  POM6371  Rafinesquia californica P. A. Munz, L. T. Street, Williams 1919-5-3 2674 Orange Santa Ana River Canyon. Comment
  RSA750068  Rafinesquia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35326 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  UCR194557  Rafinesquia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35326 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  RSA735017  Ranunculus californicus Scott D. White, Justin M. Wood 2008-4-9 11837 San Bernardino Chino Hills: Chino Hills State Park, in and adjacent to the northern park boundary. To the west and southwest of the main park entrance. 366 Comment
  UC1126169  Ranunculus californicus A. Lewis Mar 1934 350 San Bernardino San Juan Hills Corona Quadrangle Comment
  RSA305  Ranunculus cymbalaria var. saximontanus J. T. Howell 1927-7-19 3769 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  POM6265  Ranunculus hebecarpus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2630 Orange Santa Ana River Canyon. Comment
  RSA801993  Rhamnus crocea R. H. McArthur 1934-9-17 s.n. Orange Gypsum Canyon Comment
  CAS-BOT-BC56041  Rhamnus ilicifolia John Thomas Howell 1927-6-17 2548 Orange hills on north side of Santa Ana Canyon 152 Comment
  POM201686  Rhamnus ilicifolia L. M. Booth 819 Orange Santa Ana Canyon Comment
  RSA462  Rhamnus ilicifolia J. T. Howell 1927-6-17 152 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA734987  Rhamnus ilicifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35297 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  RSA735051  Rhamnus ilicifolia Scott D. White, Justin M. Wood, Jason Berkley 2008-4-8 11819 San Bernardino Chino Hills: Chino Hills State Park, northridge trail and vicinity. 488 Comment
  SD236398  Rhamnus ilicifolia A. C. Sanders, Fred M. Roberts, Amber ONeal, D. E. Bramlet 2008-5-9 35297 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  UCR192084  Rhamnus ilicifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35297 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  A347072  Rhus integrifolia J. T. Howell 1927-6-16 2545 Unknown Santa Ana Canyon Comment
  CAS-BOT-BC167873  Rhus integrifolia John Thomas Howell 1927-6-16 2445 Orange North side Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC167878  Rhus integrifolia John Thomas Howell 1927-7-29 2870 Orange North side of Santa Ana [Canon] Canyon 243 Comment
  CAS-BOT-BC167879  Rhus integrifolia John Thomas Howell 1927-7-29 2871 Orange Hills on n. side of Santa Ana [Canon] Canyon 243 Comment
  RSA17492  Rhus integrifolia Ramon Valverde 1936-8-31 8237 Orange Rancho Santa Ana Botanic Garden.Wild plants in Pine Canyon. Comment
  RSA337339  Rhus integrifolia Steve Boyd, L. LaPre 1981-5-27 s.n. Orange N end of the Santa Ana Mountains along power line road on ridges E of Weir Canyon and the head of Gypsum Canyon. Comment
  RSA449  Rhus integrifolia J. T. Howell 1927-7-29 517 Orange Near east boundary of Rancho Santa Ana. 213 Comment
  RSA450  Rhus integrifolia J. T. Howell 1928-2-26 854 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA451  Rhus integrifolia J. T. Howell 1927-6-16 147 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA454  Rhus integrifolia J. T. Howell 1927-7-29 516 Orange Near east boundary of Rancho Santa Ana. 213 Comment
  RSA5376  Rhus integrifolia B. D. Stark 1932-12-30 4463 Orange Rancho Santa Ana, slopes NW of tennis court. 192 Comment
  RSA751419  Rhus integrifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35693 Orange Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 275 Comment
  UC1602328  Rhus integrifolia A. Lewis Mar 1934 345 Orange San Juan Hills 396 Comment
  UCR193787  Rhus integrifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35693 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  RSA734695  Rhus lancea A. C. Sanders, Fred M. Roberts 2008-6-17 35500 Orange Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UCR193788A  Rhus laurina A. C. Sanders, Fred M. Roberts 2008-7-3 35685 Orange Peninsular Range; Santa Ana Mtns., upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  RSA695989  Rhus ovata Keith E. Hoffmaster 1934-4-8 s.n. Orange Gypsum can (n. Corona), Santa Ana Mts Comment
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Dec 11 2011
  UCR131871  Rhus ovata J. Mallory, V. McCoy 1995-6-30 6454- 64 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. Comment
  RSA5405  Rhus trilobata var. pilosissima B. D. Stark 1932-12-15 4448 Orange Rancho Santa Ana 144 Comment
  RSA3192  Rhus trilobata var. quinata B. D. Stark 1931-6-6 2232 Orange Rancho Ranta Ana. Comment
  RSA439665  Ribes indecorum E. Crow 1929-2-22 213 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  CAS-BOT-BC168941  Ribes malvaceum B. D. Stark 1932-2-22 2662 Orange Rancho Santa Ana, Santa Ana Canyon, in canyon west of Roundtop Peak 457 Comment
  CAS-BOT-BC168942  Ribes malvaceum B. D. Stark 1932-12-30 4456 Orange Rancho Santa Ana, 1/4 mi. W. of Roundtop Peak 457 Comment
  RSA1336  Ribes malvaceum var. viridifolium E. R. Johnson 1929-3-12 1250 Orange Canyon West of Roundtop Rancho Santa Ana. 457 Comment
  RSA1337  Ribes malvaceum var. viridifolium E. R. Johnson 1929-3-12 1251 Orange Canyon West of Roundtop Rancho Santa Ana. 457 Comment
  RSA3132  Ribes malvaceum var. viridifolium B. D. Stark 1932-2-22 2662 Orange Canyon W of Roundtop, Rancho Santa Ana. 457 Comment
  RSA441471  Ribes malvaceum var. viridifolium E. Crow 1929-2-22 213 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  RSA5383  Ribes malvaceum var. viridifolium B. D. Stark 1932-12-30 4456 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  SD27978  Ribes malvaceum var. viridifolium B. D. Stark 1932-2-22 Orange Rancho Santa Ana, Santa Ana Canyon, in canyon west of Roundtop Peak. 456 Comment
  POM6387  Ribes speciosum P. A. Munz, L. T. Street 1919-5-3 2664 Orange Santa Ana River Canyon. Comment
  RSA353  Ribes speciosum J. T. Howell 1927-6-6 51 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA454955  Ribes speciosum E. Crow 1929-2-22 166 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  RSA734881  Ribes speciosum R. H. McArthur 1934-3-17 s.n. Orange Gypsum Canyon. Comment
  RSA734883  Ribes speciosum Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  UC1127567  Ribes speciosum A. Lewis Mar 1934 332 Orange Santa Ana Canyon Corona Quadrangle Comment
  UCR3197  Ribes speciosum Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  CAS-BOT-BC207158  Ricinus communis Ira L. Wiggins 1965-9-6 20345 Orange Margin of fallow field at Well No. 14, Kraemer Oil Estates, near end of county road leading to Rancho Santa Ana. Comment
  UCR239872  Ricinus communis 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
  LA85195  Romneya coulteri O. H. Kappler; 1945-6-15 873 Orange Santa Ana Canyon Comment
  POM201689  Romneya coulteri L. M. Booth 815 Orange Santa Ana Canyon Comment
  RSA2097  Romneya coulteri B. D. Stark 1931-5-18 2054 Orange Santa Ana River bottom, SW of Ranch Houses, Rancho Santa Ana. 122 Comment
  UC1018189  Romneya coulteri J. Warren 1952-5-23 Orange Santa Ana Canon 457 Comment
  UC186874  Romneya coulteri Samuel B. Parish Oct. 1880 393 Orange near Anaheim; Santa Ana Canyon Comment
  RSA375  Rosa californica J. T. Howell 1927-6-6 s.n. Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA5318  Rosa californica B. D. Stark 1932-12-30 s.n. Orange Rancho Santa Ana. River bottom below Mexican houses. 122 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
  UCR192115  Rosa californica A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35294 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir 277 Comment
  RSA376  Rubus ursinus J. T. Howell 1927-7-6 280 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA699560  Rubus vitifolius Minor Warne 1934-03 s.n. Orange Santa Ana River Banks Comment
  RSA752618  Rumex conglomeratus Justin M. Wood, Joy D. England 2009-7-27 1214 San Bernardino Chino Hills: Chino Hills State Park. McDermont Spring. 351 Comment
  UCR208478  Rumex conglomeratus Justin M. Wood, Joy England 2009-7-27 1214 San Bernardino Chino Hills, Chino Hills State Park, McDermont Spring 351 Comment
  RSA16974  Rumex hymenosepalus E. R. Johnson 1936-4-16 7768 Orange Santa Ana Canyon, Rancho Santa Ana, along the road near roundtop. 366 Comment
  RSA698483  Rumex hymenosepalus R. H. McArthur 1934-3-17 s.n. Orange Gypsum Canyon. Comment
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Dec 6 2008
  RSA201  Rumex maritimus J. T. Howell 1927-7-15 409 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  RSA730995  Rumex maritimus Fred M. Roberts 2006-11-15 6469 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  CAS-BOT-BC434975  Rumex obtusifolius A. C. Sanders; Fred M. Roberts 2008-7-7 36004 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir. 226 Comment
  RSA0037201  Rumex obtusifolius A. C. Sanders, Fred M. Roberts 2008-7-7 36004 Orange Santa Ana Mtns: Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir. 226 Comment
  SBBG128391  Rumex obtusifolius A. C. Sanders, F. M. Roberts 2008-7-7 36004 Orange Weir Cyn at powerline crossing, 1.0 mi (air) SSE of Walnut Cyn Reservoir; Santa Ana Mtns 226 Comment
  SD247490  Rumex obtusifolius A. C. Sanders, Fred M. Roberts 2008-7-7 36004 Orange Peninsular Range; Santa Ana Mountains: Weir Canyon at powerline crossing, 1.0 mi (air) SSE of Walnut Canyon Roservoir (Black Star Canyon 7.5'Q) 226 Comment
  UCR250322  Rumex obtusifolius A. C. Sanders, Fred M. Roberts 2008-8-7 36004 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA203  Rumex salicifolius J. T. Howell 1927-7-15 269 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  RSA65365  Rumex salicifolius J. T. Howell 1927-7-5 7689 Orange Rancho Santa Ana, Santa Ana River Canyon. Comment
  RSA268  Salicornia virginica J. T. Howell 1927-10-29 788 Orange Bryant Ranch, near Long Beach. 15 Comment
  CAS-BOT-BC129737  Salix bonplandiana Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  CAS-BOT-BC129738  Salix bonplandiana Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa ana River, Santa Ana Canyon 120 Comment
  OBI5926  Salix exigua Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  POM182035  Salix exigua Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  POM182045A  Salix exigua Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos. 8 Comment
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Apr 11 2014
  RSA143  Salix exigua J. T. Howell 1927-6-6 41 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA4247  Salix exigua Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River and south of pear orchard, Santa Ana Canyon. 122 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
  RSA4496  Salix exigua Carl B. Wolf 1932-3-16 2714 Orange Santa Ana River bottom, Rancho Santa Ana (between pear and walnut groves). 122 Comment
  RSA4497  Salix exigua Carl B. Wolf 1932-3-16 2715 Orange Santa Ana River bottom, Rancho Santa Ana (between pear and walnut groves). 122 Comment
  RSA5307  Salix exigua B. D. Stark 1933-1-7 4510 Orange Rancho Santa Ana, river bottom below ranch houses. 122 Comment
  RSA6450  Salix exigua Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA6452  Salix exigua Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA731935  Salix exigua Fred M. Roberts, Sandra Leatherman 2007-11-27 6675 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  SJSU160  Salix exigua C. B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana on Bixby Ave, 1 km W of Hansen Rd near Los Alamitos 7 Comment
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Apr 11 2014
  SJSU190  Salix exigua C. B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana on Bixby Ave, 1 km W of Hansen Rd near Los Alamitos 7 Comment
  SJSU220  Salix exigua C. B. Wolf 1932-4-15 2954 Orange S of pear orchard Rancho Santa Ana near Santa Ana R, Santa Ana Canyon 121 Comment
  SJSU255  Salix exigua C. B. Wolf 1932-4-15 2953 Orange S of pear orchard Rancho Santa Ana near Santa Ana R, Santa Ana Canyon 121 Comment
  SBBG58924  Salix exigua var. hindsiana C. B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  SBBG58935  Salix exigua var. hindsiana C. B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  SBBG58943  Salix exigua var. hindsiana C. B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, Bixby Ave, 1 km W of Hansen Rd, near Los Alamitos 8 Comment
  SD1026  Salix exigua var. hindsiana Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
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Apr 11 2014
  SD1027  Salix exigua var. hindsiana Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  UC492353  Salix exigua var. hindsiana Carl B. Wolf 1932-4-15 2954 Orange near Santa Ana R. Rancho Santa Ana (along river s of pear orchard); Santa Ana Canyon 120 Comment
  UC492355  Salix exigua var. hindsiana Carl B. Wolf 1932-4-15 2953 Orange near Santa Ana R. Rancho Santa Ana (along river s of pear orchard); Santa Ana Canyon 120 Comment
  UC492442  Salix exigua var. hindsiana Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave, 1 km west of Hansen Road near town of Los Alamitos Comment
  A382857  Salix gooddingii C. B. Wolf 1932-4-15 2955 Unknown Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon Comment
  A382859  Salix gooddingii C. B. Wolf 1932-4-8 2950 Unknown Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon Comment
  CAS-BOT-BC108132  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  CAS-BOT-BC108133  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  CAS-BOT-BC108134  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  CAS-BOT-BC108135  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  GH382814  Salix gooddingii C. B. Wolf 1932-4-15 2955 Unknown Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon Comment
  GH382815  Salix gooddingii C. B. Wolf 1932-4-8 2950 Unknown Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon Comment
  POM182034  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  POM182036  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon, at southeast corner of pear orchard. 120 Comment
  RSA137  Salix gooddingii J. T. Howell 1927-7-24 394 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  RSA138  Salix gooddingii J. T. Howell 1927-6-6 40 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA4250  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon, at southeast corner of pear orchard. 120 Comment
  RSA5308  Salix gooddingii B. D. Stark 1933-1-7 4509 Orange Rancho Santa Ana, river bottom below ranch houses. 122 Comment
  RSA5404  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River and south of pear orchard, Santa Ana Canyon. 122 Comment
  RSA6449  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon, at southeast corner of pear orchard. 120 Comment
  RSA6451  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA658950  Salix gooddingii Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-15 21 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  RSA748273  Salix gooddingii A. C. Sanders, Fred M. Roberts 2008-6-17 35515 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  SBBG58894  Salix gooddingii C. B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  SBBG58903  Salix gooddingii C. B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  SD1042  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  SJSU207  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange SE corner of pear orchard, Rancho Santa Ana, near R, Santa Ana Canyon 137 Comment
  UC492354  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange near Santa Ana R. Rancho Santa Ana (at s.e. corner of pear orchard); Santa Ana Canyon 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
  UCD110999  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  UCR193026  Salix gooddingii A. C. Sanders, Fred M. Roberts 2008-6-17 35515 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR239842  Salix gooddingii 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
  A382927  Salix hindsiana C. B. Wolf 1932-7-7 3843 Unknown Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos Comment
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Apr 11 2014
  A382928  Salix hindsiana C. B. Wolf 1932-7-7 3845 Unknown Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos Comment
  A383132  Salix hindsiana C. B. Wolf 1932-4-15 2953 Unknown Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon Comment
  A383133  Salix hindsiana C. B. Wolf 1932-4-15 2954 Unknown Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon Comment
  CAS-BOT-BC108202  Salix hindsiana Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  CAS-BOT-BC108203  Salix hindsiana Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  CAS-BOT-BC108204  Salix hindsiana Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  CAS-BOT-BC108205  Salix hindsiana Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  GH382910  Salix hindsiana C. B. Wolf 1932-7-7 3843 Unknown Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos Comment
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Apr 11 2014
  GH383110  Salix hindsiana C. B. Wolf 1932-7-7 3845 Unknown Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos Comment
  GH383111  Salix hindsiana C. B. Wolf 1932-4-15 2953 Unknown Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon Comment
  GH383112  Salix hindsiana C. B. Wolf 1932-4-15 2954 Unknown Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon Comment
  A383253  Salix laevigata C. B. Wolf 1932-4-8 2949 Unknown Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon Comment
  GH383308  Salix laevigata C. B. Wolf 1932-4-8 2949 Unknown Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon Comment
  LA208694  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7680 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  LA208695  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7681 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  LA208696  Salix laevigata Carl Hedin; Joseph Ewan 1933-3-19 7682 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  LA208697  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7683 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  LA208698  Salix laevigata Carl Hedin; Joseph Ewan 1933-3-19 7684 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  LA208699  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7685 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  LA208700  Salix laevigata Carl Hedin; Joseph Ewan 1933-3-19 7686 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  PASA2674  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  RSA140  Salix laevigata J. T. Howell 1927-7-14 395 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA4249  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon, at southeast corner of pear orchard. 120 Comment
  RSA5369  Salix laevigata B. D. Stark 1933-1-7 4511 Orange Rancho Santa Ana, river bottom below ranch houses. 122 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
  RSA801981  Salix laevigata Minor Warne 1934-2-28 s.n. Orange Bed of Santa Ana River Comment
  SBBG59101  Salix laevigata C. B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  SD1032  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ane, near Santa Ana River, Santa Ana Canyon 120 Comment
  UC492485  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange near Santa Ana River, at s.e corner of pear orchard Rancho Santa Ana; Santa Ana Canyon, Rancho Santa Ana 120 Comment
  UC506445  Salix laevigata Carl Hedin and Joseph Ewan 1933-3-19 7686 Orange Comment
  UC506448  Salix laevigata Carl Hedin and Joseph Ewan 1933-3-19 7682 Orange Comment
  UC506449  Salix laevigata Carl Hedin and Joseph Ewan 1933-3-19 7684 Orange Comment
  UC506450  Salix laevigata Carl Hedin and Joseph Ewan 1932-7-9 7681 Orange 8 km. below Prado (Rincon); Santa Ana R. Comment
  UC506451  Salix laevigata Carl Hedin and Joseph Ewan 1932-7-9 7683 Orange 8 km. below Prado (Rincon) (Santa Ana R.); Santa Ana R. Comment
  UC506452  Salix laevigata Carl Hedin and Joseph Ewan 1932-7-9 7685 Orange 8 mi. below Prado (Rincon) (Santa Ana R.); Santa Ana R. 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
  UCR239909  Salix laevigata O. F. Clarke 2004-3-22 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  RSA142  Salix lasiolepis J. T. Howell 1927-7-14 393 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA5309  Salix lasiolepis B. D. Stark 1933-1-7 4508 Orange Rancho Santa Ana, river bottom below ranch houses. 122 Comment
  RSA700179  Salix lasiolepis Minor Warne 1934-2-1 s.n. Orange Santa Ana River bed Comment
  CAS-BOT-BC128462  Salix lasiolepis var. lasiolepis Carl B. Wolf 1932-2-15 2655 Orange Rancho Santa Ana Botanic Garden, north of administration building. 182 Comment
  CAS-BOT-BC128463  Salix lasiolepis var. lasiolepis Carl B. Wolf 1932-2-15 2654 Orange Rancho Santa Ana Botanic Garden, north of administration building. 182 Comment
  RSA731917  Salix lasiolepis var. lasiolepis Fred M. Roberts, Sandra Leatherman 2007-11-27 6662 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
  OBI74732  Salix lucida subsp. lasiandra Unknown 2009-11-9 09 -243 Orange City of Yorba Linda, Santa Ana Canyon, Santa Ana river bottom, E of Weir Canyon Rd, between Horseshoe Bend and vicinity of La Palma Ave. and Mercado del Rio 102 Comment
  RSA735966  Salix lucida subsp. lasiandra Scott D. White, Justin M. Wood 2008-4-22 11908 San Bernardino Chino Hills: Chino Hills State Park. McDermont Spring. 351 Comment
  CAS-BOT-BC126301  Salix sessilifolia John Thomas Howell 1927-6-6 2440 Orange Santa Ana River bottom 152 Comment
  CAS-BOT-BC126303  Salix sessilifolia Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  CAS-BOT-BC126304  Salix sessilifolia Carl B. Wolf 1932-3-16 2714 Orange Rancho Santa Ana, Santa Ana River bottom 121 Comment
  CAS-BOT-BC126306  Salix sessilifolia Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  CAS-BOT-BC126307  Salix sessilifolia Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  CAS-BOT-BC126308  Salix sessilifolia Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 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
  CAS-BOT-BC126312  Salix sessilifolia Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  CAS-BOT-BC126313  Salix sessilifolia Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  CAS-BOT-BC126314  Salix sessilifolia Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  RSA700176  Salix sessilifolia Minor Warne 1934-02 s.n. Orange Santa Ana River Comment
  RSA700196  Salix sessilifolia Minor Warne 1934-02 s.n. Orange Santa Ana River Comment
  CDA5811  Salpichroa origanifolia Margaret Bellue Oct 1944 Orange Yorba Linda. 0 Comment
  UCR192081  Salsola australis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35282 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  CAS-BOT-BC176975  Salsola tragus Ira L. Wiggins 1965-11-6 20350 Orange Near Well No. 14, Kraemer Oil Estates, near end of road leading to Rancho Santa Ana Comment
  CAS-BOT-BC176976  Salsola tragus John Thomas Howell 1927-7-27 2857 Orange Hills on n. side of Santa Ana [Canon] 152 Comment
  CAS-BOT-BC176977  Salsola tragus John Thomas Howell 1927-6-6 2443 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  RSA12656  Salsola tragus E. R. Johnson 1934-7-26 6040 Orange Grain field west of the Rancho Santa Ana Botanic Garden. 198 Comment
  RSA269  Salsola tragus J. T. Howell 1927-6-6 44 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA270  Salsola tragus J. T. Howell 1927-7-27 499 Orange Near ranch houses, Rancho Santa Ana 152 Comment
  RSA734986  Salsola tragus A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35282 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  POM201685  Salvia apiana L. M. Booth 820 Orange Santa Ana Canyon Comment
  RSA50451  Salvia apiana G. R. Campbell 1949-6-28 14009 Orange native to Botanic Garden, collected in picnic area. 198 Comment
  RSA5384  Salvia apiana B. D. Stark 1932-12-30 1705 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA584710  Salvia apiana Fred M. Roberts 1989-6-7 4378 Orange Santa Ana Mountains: Upper Gypsum Canyon along ridge between Gypsum and Blind Canyon, c. 6.3 km WSW Sierra Peak. 411 Comment
  RSA663  Salvia apiana J. T. Howell 1927-6-3 s.n. Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA734693  Salvia apiana A. C. Sanders, Fred M. Roberts 2008-6-17 35502 Orange Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor. 400 Comment
  RSA751323  Salvia apiana A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35292 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR192094  Salvia apiana A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35292 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR193060  Salvia apiana A. C. Sanders, Fred M. Roberts 2008-6-17 35502 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA0013963  Salvia columbariae Fred M. Roberts, D. E. Bramlet 2008-5-13 6955 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  RSA662  Salvia columbariae J. T. Howell 1928-3-18 891 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  CAS-BOT-BC233670  Salvia leucophylla C. B. Wolf 1943-6-8 11449 Orange Rancho Santa Ana Botanic Garden 198 Comment
  CAS-BOT-BC233671  Salvia leucophylla Carl B. Wolf 1943-6-8 11448 Orange Rancho Santa Ana Botanic Garden, Santa Ana River Canyon 198 Comment
  CAS-BOT-BC233673  Salvia leucophylla Carl B. Wolf 1942-5-12 11263 Orange Rancho Santa Ana Botanic Garden, along road in W part of Garden 198 Comment
  CAS-BOT-BC233674  Salvia leucophylla Carl B. Wolf 1932-6-2 3701 Orange Rancho Santa Ana between Administration Bldg. and tennis court, Santa Ana Canyon 198 Comment
  JEPS62728  Salvia leucophylla Frank W. Peirson 1927-6-20 7349 Orange Rancho Santa Ana; Mrs. Bryant's 182 Comment
  RSA5345  Salvia leucophylla B. D. Stark 1932-12-30 4464 Orange Rancho Santa Ana, slopes NW of tennis court. Comment
  RSA653189  Salvia leucophylla David Barrios 1991-5-8 22 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 366 Comment
  RSA666  Salvia leucophylla J. T. Howell 1927-6-8 60 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  SD43536  Salvia leucophylla Carl B. Wolf 1943-6-8 11449 Orange Rancho Santa Ana Botanic Garden; on dry brushy hillside. 198 Comment
  UC729647  Salvia leucophylla Carl B. Wolf 1932-6-2 Orange Rancho Santa Ana Rancho Santa Canyon (between administration bldg. and tennis court) 198 Comment
  UCR3192  Salvia leucophylla Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  CAS-BOT-BC229976  Salvia mellifera John Thomas Howell 1927-6-8 2459 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 213 Comment
  CAS-BOT-BC229979  Salvia mellifera John Thomas Howell 1927-6-8 2460 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 213 Comment
  CAS-BOT-BC229997  Salvia mellifera Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canon [Canyon] Comment
  RSA5278  Salvia mellifera B. D. Stark 1932-12-15 4454 Orange Rancho Santa Ana 145 Comment
  RSA665  Salvia mellifera J. T. Howell 1927-6-8 59 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA749294  Salvia mellifera Fred M. Roberts, Linda Farley 2008-3-28 6818 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
  SD232708  Salvia mellifera Mallory, McCoy 1995-6-30 Orange S-facing slope in chaparral on Windy Ridge, approx. 2.5 mi. S of 91 frwy, within footprint of the Eastern Transportation Corridor. Comment
  UC1618084  Salvia mellifera Donald G. Nelson 1935-3-17 170 Orange Carbon Canyon Comment
  UCR131880  Salvia mellifera J. Mallory, V. McCoy 1995-6-30 6454- 60 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. Comment
  UCR209372  Salvia mellifera Fred M. Roberts, Linda Farley 2008-3-28 6818 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  RSA0043352  Sambucus mexicana David Barrios 1991-5-8 26 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  RSA13083  Sambucus mexicana Vernon Fagan 1935-9-4 7566 Orange Rancho Santa Ana, Santa Ana Canyon North of Mexican Houses. 122 Comment
  RSA3156  Sambucus mexicana C. B. Wolf 1931-7-25 2293 Orange Above irrigation canal, just north of Mexican houses. Rancho Santa Ana. 122 Comment
  RSA747  Sambucus mexicana J. T. Howell 1927-6-1 1 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA748256  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-6-17 35517 Orange Middle section of Weir Canyon, SSE of Walnut Canyon Reservoir. 225 Comment
  RSA751420  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-7-3 35691 Orange Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 275 Comment
  UC1125355  Sambucus mexicana A. Lewis Mar 1934 335 Orange Santa Ana Canyon Corona Quadrangle Comment
  UC527395  Sambucus mexicana C. B. Wolf 1931-7-25 2293 Orange above irrigation canal (just n of Mexican houses); Rancho Santa Ana, Santa Ana Canyon 121 Comment
  UCR193031  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-6-17 35517 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR193789  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-7-3 35691 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
  A386112  Sambucus nigra subsp. caerulea C. B. Wolf 1931-7-25 2293 Unknown just north of the Mexican houses, Rancho Santa Ana, Santa Ana Canyon 121 Comment
  A386146  Sambucus nigra subsp. caerulea C. B. Wolf 1931-7-25 2293 Unknown Above irrigation canal, just north of the Mexican houses, Rancho Santa Ana, Santa Ana Canyon Comment
  CAS-BOT-BC238829  Sambucus nigra subsp. caerulea C. B. Wolf 1931-7-25 2293 Orange Above the irrigation canal, just north of Mexican houses, Rancho Santa Ana, Santa Ana Canyon 121 Comment
  CAS-BOT-BC238830  Sambucus nigra subsp. caerulea Carl B. Wolf 1931-7-25 2293 Orange Above the irrigation canal, just no. of the Mexican houses, Rancho Santa Ana, Santa Ana Canon [Canyon] 121 Comment
  CAS-BOT-BC238832  Sambucus nigra subsp. caerulea John Thomas Howell 1927-6-1 Orange Southern Puente Hills, Santa Ana Canon [Canyon] 152 Comment
  GH377177  Sambucus nigra subsp. caerulea C. B. Wolf 1931-7-25 2293 Unknown just north of the Mexican houses, Rancho Santa Ana, Santa Ana Canyon 121 Comment
  OBI5973  Sambucus nigra subsp. caerulea Carl B. Wolf 1931-7-25 2293 Orange Upper sonoran; Above the irrigation canal, just N of the Mexican houses, Rancho Satna Ana, Santa Ana cyn 122 Comment
  RSA640718  Sambucus nigra subsp. caerulea L. C. Wheeler 1931-8-16 s.n. Orange Santa Ana River 152 Comment
  UCSB69268  Sambucus nigra subsp. caerulea Sanders, A.; Roberts, Fred 2008-7-3 Orange Peninsular Range; Santa Ana Mtns. Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir (Black Star Canyon 7.5 ' Q.) 285 Comment
  JEPS43080  Samolus parviflorus John Thomas Howell 1927-7-15 2775 Orange Santa Ana River, Santa Ana Canyon, Rancho Santa Ana Santa Ana Canyon; Santa Ana River, , Rancho Santa Ana 152 Comment
  RSA553  Samolus parviflorus J. T. Howell 1927-7-19 s.n. Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA734645  Sanicula bipinnatifida A. C. Sanders, Fred M. Roberts 2008-3-25 34569 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
  RSA735018  Sanicula bipinnatifida Scott D. White, Justin Wood 2008-4-9 11838 San Bernardino Chino Hills State Park, in and adjacent to the northern park boundary. To the west and southwest of the main park entrance. 366 Comment
  RSA749317  Sanicula bipinnatifida Fred M. Roberts, Linda Farley 2008-3-28 6819 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
  RSA749638  Sanicula bipinnatifida D. E. Bramlet 2008-4-28 4247 Orange East Fort of Upper Weir Cyn., on the north side of the existing access road. The site is found 1.22km east of the main Cyn. & 122m west of the upper boundary of Gypsum Cyn. 406 Comment
  UCR191777  Sanicula bipinnatifida A. C. Sanders, Fred M. Roberts 2008-3-25 34569 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
  UCR209376  Sanicula bipinnatifida Fred M. Roberts, Linda Farley 2008-3-28 6819 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
  UCR222641  Sanicula bipinnatifida D. E. Bramlet 2008-4-28 4247 Orange Peninsular Range; Santa Ana Mtns. Foothills, east fork of upper Weir Canyon, north side of access road, 1.22 km east of the main canyon and 122 m west of the upper boundary of Gypsum Canyon 406 Comment
  POM6326  Sanicula crassicaulis P. A. Munz, L. T. Street, G. Williams 1919-5-3 2636 Orange Santa Ana River Canyon. Comment
  RSA735053  Sanicula crassicaulis Scott D. White, Justin Wood, Jason Berkley 2008-4-8 11821 San Bernardino Chino Hills State Park, northridge trail and vicinity. 488 Comment
  UCR199684  Sanicula crassicaulis Scott D. White, Justin Wood, Jason Berkley 2008-4-8 11821 San Bernardino Chino Hills, Chino Hills State Park, northridge trail and vicinity 488 Comment
  JEPS27447  Sarcostemma cynanchoides subsp. hartwegii John Thomas Howell 1927-7-24 2819 Orange Santa Ana Canyon, Rancho Santa Ana 152 Comment
  CAS-BOT-BC243419  Schismus barbatus Ira L. Wiggins 1966-2-18 20448 Orange Roadside 1/2 mi. W of entrance to Rancho Santa Ana, near end Orange County road at end of Orangethorpe Avenue Comment
  IRVC1823  Schismus barbatus I. L. Wiggins 1966-2-18 20 448 Orange Rancho Santa Ana: roadside 1/2 mile W of entrance to Rancho Santa Ana near the end of Orange County road at the end of Orangethorpe Avenue. Santa Ana Mountains Comment
  UCR192493  Schismus barbatus A. C. Sanders, Fred M. Roberts 2008-3-25 34561 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC111387  Schoenoplectus acutus var. occidentalis John Thomas Howell 1927-7-3 2655 Orange Wet place along road near Horseshoe Bend, Santa Ana River bottom, Santa Ana Canyon 152 Comment
  CAS-BOT-BC111473  Schoenoplectus americanus John Thomas Howell 1927-7-19 2805 Orange In shallow water, Santa Ana River bottom, Santa Ana Canon 152 Comment
  POM6359  Schoenoplectus americanus Phillip A. Munz, L. T. Street, G. Williams 1919-5-3 2652 Orange Santa Ana River Canyon. Comment
  RSA731915  Schoenoplectus americanus Fred M. Roberts, Sandy Leatherman 2007-11-27 6664 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
  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
  POM6408  Scirpus acutus var. occidentalis Phillip A. Munz, L. T. Street, G. Williams 1914-5-3 2661 Orange Santa Ana River Canyon. Comment
  RSA21060  Scirpus acutus var. occidentalis Ramon Valverde 1938-8-4 9444 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA89  Scirpus acutus var. occidentalis J. T. Howell 1927-7-5 270 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  UCR193764  Scirpus cernuus A. C. Sanders, Fred M. Roberts 2008-7-3 35708 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA647958  Scrophularia californica Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 25 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  RSA751325  Scrophularia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35285 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR192099  Scrophularia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35285 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  POM6374  Scrophularia californica subsp. floribunda Philip A. Munz, Street, Williams 1919-5-3 2617 Orange Santa Ana River Canyon. Comment
  UCR193014  Searsia pendulina A. C. Sanders, Fred M. Roberts 2008-6-17 35500 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA16  Selaginella bigelovii John Thomas Howell 1927-7-28 506 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  RSA518450  Selaginella bigelovii C. W. Tilforth, Dorothy Tilforth 1977-3-6 1254 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  RSA749437  Selaginella bigelovii Fred M. Roberts 2008-4-14 6891 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork, 3.4 km E Robbers Peak, Irvine Ranch Conservancy. 433 Comment
  RSA612912  Selaginella cinerascens F. M. Cota 206 San Diego Camp Kearney 152 Comment
  CAS-BOT-BC363479  Senecio californicus P. C. Everett 1935-3-15 6294 Orange Rancho Santa Ana, Santa Ana Canyon near Corner Post 3938 182 Comment
  CAS-BOT-BC363480  Senecio californicus P. C. Everett 1935-3-15 6294 Orange Rancho Santa Ana, Santa Ana Canyon near Corner Post 3938 182 Comment
  RSA12904  Senecio californicus P. C. Everett 1935-3-15 s.n. Orange Rancho Santa Ana Herbarium. Botanic Garden Area, near corner post 3938 183 Comment
  RSA17008  Senecio californicus P. C. Everett 1936-3-19 7733 Orange Santa Ana Botanic Garden. 183 Comment
  RSA17009  Senecio californicus P. C. Everett 1936-3-19 7732 Orange Santa Ana Botanic Garden. 183 Comment
  UC718547  Senecio californicus P. C. Everett 1935-3-15 6294 Orange near corner post 3938 (Rancho Santa Ana, Santa Ana Canyon); Rancho Santa Ana, Santa Ana Canyon 182 Comment
  UCR192460  Senecio californicus A. C. Sanders, Fred M. Roberts 2008-3-25 34528 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC333069  Senecio flaccidus var. douglasii John Thomas Howell 1927-6-6 2442 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  POM201687  Senecio flaccidus var. douglasii L. M. Booth 818 Orange Santa Ana Canyon bottom Comment
  RSA1370  Senecio flaccidus var. douglasii B. D. Stark 1929-11-2 1441 Orange Santa Ana River bottom, Rancho Santa Ana 122 Comment
  RSA5429  Senecio flaccidus var. douglasii B. D. Stark 1933-1-3 s.n. Orange Rancho Santa Ana near pear orchard. 122 Comment
  RSA731939  Senecio vulgaris Fred M. Roberts, Sandy Leatherman 2007-11-27 6696 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA734811  Senecio vulgaris A. C. Sanders, Fred M. Roberts 2008-3-25 34578 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  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
  RSA731936  Senna Fred M. Roberts, Sandra Leatherman 2007-11-27 6674 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  RSA0069225  Senna marilandica Fred M. Roberts, Sandra Leatherman 2008-9-3 7080 Orange Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave. 113 Comment
  SEINET11237911 Image available Senna marilandica Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7080 Orange Yorba Linda, Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave 113 Comment
  UCR266664  Senna marilandica Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7080 Orange YORBA LINDA: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave 113 Comment
  RSA4818  Sesuvium verrucosum James Snow 1932-1 s.n. Orange Bryant Ranch: Near Long Beach. Station # 4. Plant # 1. Comment
  RSA731924  Setaria adhaerens Fred M. Roberts, Sandy Leatherman 2007-11-27 6686 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 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
  RSA651762  Setaria parviflora Diane T. Liggett 1981-5-16 12 Riverside Riverside Freeway (91) east of Gypsum Canyon Road, north to Featherly Park entrance, east ot bike trail, 0.2 km east. Comment
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Jul 14 2013
  UCR236679  Setaria parviflora Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7101 Orange Peninsular Ranges, Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana River, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river 87 Comment
  RSA788912  Setaria pumila Fred M. Roberts 2008-9-17 7104 Orange Peninsular Ranges: Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana river, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river. 87 Comment
  UCR236682  Setaria viridis Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7104 Orange Peninsular Ranges, Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana River, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river 87 Comment
  RSA285  Silene antirrhina J. T. Howell 1928-2-25 851 Orange Between Nolina and Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA749489  Silene antirrhina Fred M. Roberts, Linda Farley 2008-3-28 6823 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber s Peak, Irvine Land Conservancy. 457 Comment
  UCR275222  Silene coniflora A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35312 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR192495  Silene gallica A. C. Sanders, Fred M. Roberts 2008-3-25 34563 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC174885  Silene laciniata Munz; Street; Williams 1919-5-3 2671 Orange Santa Ana River [Canon] Canyon Comment
  UCR192083  Silene laciniata A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35296 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  POM6421  Silene laciniata subsp. major P. A. Munz, Williams, L. T. Street 1919-5-3 2671 Orange Santa Ana River Canyon. Comment
  RSA289  Silene laciniata subsp. major J. T. Howell 1927-7-28 512 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  RSA438888  Silene laciniata subsp. major M. B. Dunkle 1933-5-30 3375 Orange Santa Ana Canyon. Comment
  RSA507174  Silene laciniata subsp. major Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  UCR209365  Silene laciniata subsp. major Fred M. Roberts, Linda Farley 2008-3-28 6831 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
  RSA14728  Silybum marianum C. B. Wolf 1935-2-26 s.n. Orange Rancho Santa Ana, near office Comment
  RSA473583  Silybum marianum M. B. Dunkle 1938-4-6 5372 Orange Santa Ana Canyon Comment
  RSA653177  Silybum marianum David Barrios 1991-5-8 32 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA751429  Silybum marianum A. C. Sanders, Fred M. Roberts 2008-7-3 35695 Orange Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  UCR193795  Silybum marianum A. C. Sanders, Fred M. Roberts 2008-7-3 35695 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
  RSA16981  Sinapis arvensis Percy C. Everett 1936-3-20 s.n. Orange Rancho Santa Ana Botanic Garden, Santa Ana Canyon. West of Adm. Bldg. 198 Comment
  RSA16983  Sinapis arvensis Percy C. Everett 1936-3-20 s.n. Orange Rancho Santa Ana Botanic Garden, Santa Ana Canyon. West of Adm. Bldg. 198 Comment
  RSA653212  Sinapis arvensis David Barrios 1991-5-1 9 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle. 365 Comment
  CAS-BOT-BC75037  Sisymbrium altissimum John Thomas Howell 1927-6-6 2448 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  CAS-BOT-BC75038  Sisymbrium altissimum John Thomas Howell 1927-7-24 2821 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  CAS-BOT-BC75234  Sisymbrium irio L. R. Abrams 1936-4-5 13714 Orange Rancho Santa Ana, Botanic Garden. Santa Ana Canyon. Comment
  RSA336  Sisymbrium irio J. T. Howell 1928-2-7 819 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  RSA653180  Sisymbrium irio David Barrios 1991-5-8 37 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA735968  Sisymbrium officinale Scott D. White, Justin Wood 2008-4-22 11906 Orange Telegraph Canyon Road, E of Carbon Canyon Regional Park. 152 Comment
  RSA131  Sisyrinchium bellum J. T. Howell 1927-7-19 445 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA734651  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts, Amber O'Neal, David E. Bramlet 2008-5-9 35299 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  RSA7579  Sisyrinchium bellum E. R. Johnson 1933-11 2031 Orange Rancho Santa Ana. Comment
  SD236123  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts, Amber ONeal, D. E. Bramlet 2008-5-9 35299 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 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
  UCR192085  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35299 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  IRVC20989  Sitanion jubatum Karlin G. Marsh 1981-6-15 s.n. Orange Divide between Weir and Gypsum Canyons. Santa Ana Mountains Comment
  CDA20833  Solanum americanum P. Akers 2006-3-25 PA 7 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River S of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  UCR182904  Solanum americanum Pat Akers 2006-3-25 PA7 06 Orange Yorba Linda. Santa Ana River on a large (300-400 ft) sandy/cobbly flat. south of La Palma Dr, 0.6-0.9 mi. east of Yorba Linda Dr 122 Comment
  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
  RSA184115  Solanum douglasii I. L. Wiggins 1965-11-6 20352 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA647960  Solanum douglasii Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-1 7 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  RSA752811  Solanum douglasii A. C. Sanders, Fred M. Roberts 2008-8-7 36003 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UCR194994  Solanum douglasii A. C. Sanders, Fred M. Roberts 2008-8-7 36003 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  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
  RSA752638  Solanum nigrum Justin M. Wood, Joy D. England 2009-7-27 1202 San Bernardino Chino Hills: Chino Hills State Park. McDermont Spring. 351 Comment
  NY820829  Solanum rostratum E. Johnson 1946-8-22 11531 Orange Rancho Santa Ana, Santa Ana River Canyon 122 Comment
  SD43527  Solanum rostratum E. Johnson 1946-8-22 11531 Orange sandy river bottom, Rancho Santa Ana, Santa Ana Canyon 399 Comment
  UCR139445  Solanum rostratum E. R. Johnson 1946-8-22 11531 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden 122 Comment
  A244896  Solanum umbelliferum P. A. Munz et al. 1919-5-3 2650 Unknown Santa Ana River Canyon Comment
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Jun 11 2012
  CAS-BOT-BC156480  Solanum umbelliferum J. T. Howell 1927-7-24 2822 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC156709  Solanum umbelliferum P. A. Munz; L. T. Street; Williams 1919-5-3 2650 Orange Santa Ana River [Canon] Canyon Comment
  POM6347  Solanum umbelliferum Philip A. Munz, L. T. Street 1919-5-3 2650 Orange Santa Ana River Canyon. Comment
  RSA427453  Solanum umbelliferum E. Crow 1929-2-22 169 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  RSA427454  Solanum umbelliferum M. B. Dunkle 1933-5-30 3576 Orange Santa Ana Canyon Comment
  RSA507482  Solanum umbelliferum Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment