Search Results — 2000 specimen records retrieved (1604 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA460928  Abronia maritima E. S. Spalding 1923-11-29 s.n. Orange Near San Juan Capistrano Comment
  UC1280004  Abronia maritima Peter H. Raven 1957-9-28 11392 Orange Huntington Beach Comment
  HSC16138  Abronia umbellata B. Francis 1964-5-2 41 Orange Newport Beach Comment
  RSA461006  Abronia umbellata E. S. Spalding 1923-12-1 s.n. Orange Opposite San Juan Capistrano Comment
  UCR207194  Abronia umbellata O. F. Clarke 2004-7-19 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  SEINET893157  Abronia umbellata Charles T. Mason Jr. 1943-1 108 Orange Along Coast Highway 101, one miles southeast of Huntington Beach. Comment
  RSA13158  Abronia villosa var. aurita Percy C. Everett 1935-6-28 7260 Orange 0.8 miles east of Atwood S side of RR tracks 107 Comment
  RSA0126616  Acacia Fred M. Roberts 2012-4-27 7497 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  UCR169911  Acacia Scott D. White, Jennifer H. Jones 2005-4-26 10972 Orange Laguna Beach area., City of Laguna Beach. 549 Nyes Place. Undeveloped lot within a residential neighborhood. Proposed for new home Comment
  UCSB52938  Acacia cyanophylla F. M. Roberts, Jr. 1984-3-15 1260 Orange collected 1.0 km SSW and 3.0 km W, along Back Bay Drive in Newport Back Bay Bayview School and U. C. Irvine Campus Center - Newport Back Bay, Back Bay Drive, U. C. Irvine Campus Center 2 Comment
  SEINET946801  Acacia longifolia R. J. Barr 1964-1 64 -589 Orange Roadside near Capistrano Beach Comment
  UCR24737  Acacia podalyriifolia Sue Freeman 1966-11-4 s.n. Orange Across Hwy 1 from San Clemente Beach at the foot of a grassy shrubby cliff Comment
  IRVC22668  Acer macrophyllum Fred M. Roberts 1985-5-9 1729 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  IRVC5  Acer macrophyllum A. S. Boughey 1965-3-5 53 Orange Trabuco Canyon. Santa Ana Mountains Comment
  SD127435  Acer macrophyllum Reid Moran, Jack Reveal and Bob Smart 1975-7-18 22595 Orange Near Yeager Mine, upper Trabuco Canyon, Santa Ana Mountains 725 Comment
  RSA689446  Achillea millefolium Scott D. White, Amanda Duchardt 2003-4-10 9008 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UCR228779  Achillea millefolium Dick Newell, E. D. Hill 2011-6-7 169 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon 341 Comment
  RSA696051  Achillea millefolium M. Funakoshi 1943-10-23 s.n. Orange Santa Ana. Comment
  RSA699744  Achillea millefolium var. californica Fred M. Roberts, David Bramlet 2003-5-15 5875 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 1.41km SSW Gato Gate and 0.35km NNW of SDG&E substation. 122 Comment
  RSA562739  Achillea millefolium var. californica Steve Boyd 1992-5-20 7455 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09), 305 Comment
  LA48030  Acmispon glaber var. glaber A. M. Johnson; 1927-12-30 2760 Orange Laguna Comment
  SD234951  Acmispon maritimus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34637 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 395 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
  UCR174184  Acourtia microcephala A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33021 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA542471  Acourtia microcephala Fred M. Roberts, K. Keane 1988-5-25 4584 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker. 91 Comment
  UCR230219  Adenostoma fasciculatum Dick Newell, Ed Hill 2011-3-29 102 Orange Peninsular Range; Santa Ana Mtns., 200 yards NE of old coal mine, under power lines, off Coal Rd. below intersection with Upper Blind Cyn. Rd. 482 Comment
  UCR252214  Adenostoma fasciculatum Amanda C. Swanson 2013-4-21 24 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  SD247725  Adenostoma fasciculatum R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49680 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 456 Comment
  RSA357  Adenostoma fasciculatum var. fasciculatum J. T. Howell 1928-4-15 919 Orange East boundary of the Rancho Santa Ana 229 Comment
  UCSB9368  Adenostoma fasciculatum var. fasciculatum Lloyd, Robert 1959-4-17 Orange 10 miles south of West Corona on the Oak Flats Fire Road Comment
  RSA701807  Adiantum capillus-veneris Fred M. Roberts 1999-7-22 5248 Orange Lomas de Santiago: Lomas Ridge, tributary to Limestone Canyon at Dripping Springs. Limestone Wilderness Park. 415 Comment
  UCR240175  Adiantum capillus-veneris R. E. Riefner Jr. 2012-2-23 12- 43 Orange South Coast, city of Laguna Beach, Treasure Island Beach, vicinity of Wesley Drive and South Coast Hwy 1 Comment
  UCR228792  Agoseris retrorsa Dick Newell, Don Millar 2011-5-8 146 Orange Peninsular Range; Santa Ana Mtns., Maple Spring Rd., Cleveland National Forest 1173 Comment
  RSA773555  Agrostis pallens Fred M. Roberts 2008-6-3 7029 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.6 km NE of Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 235 Comment
  RSA788920  Agrostis pallens Fred M. Roberts 1999-6-10 5242 Orange Lomas de Santiago: Loma Ridge, Central Limestone Cyn., adjacent to the Sinks, 0.7 km E Bolero Spring and 1.9 km NW Bolero Lookout. 411 Comment
  UCR219855  Agrostis pallens Fred M. Roberts 2008-6-3 7029 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, East Fork Rattlesnake Canyon, c. 2.6 km NE Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 225 Comment
  UCSB48019  Agrostis stolonifera Roberts, Fred 1980-7-1 Orange Irvine; San Diego Creek, 0.2 km NE Interstate 5; 2.0 km WSW Bench Mark 343 85 Comment
  JEPS73752  Agrostis viridis Lawrence M. Booth 1932-6-7 1163 Orange Newport Bay Comment
  UCR189302  Ailanthus altissima Fred M. Roberts, R. L. Allen 2007-9-28 6599 Orange Foothill Trabuco, Upper Aliso Creek at SE corner of El Toro Road and Valle Vista Way, c. 1.8 km NE Upper Oso Reservoir 308 Comment
  IRVC26678  Allium burlewii Mark A. Elvin 2004-4-4 3215 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA0063249  Allium marvinii Philip A. Munz 1949-5-26 13373 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  CAS-BOT-BC132051  Allium peninsulare var. peninsulare P. C. Everett; E. R. Johnson 1935-5-29 7092 Orange Santa Ana Mts., Summit of Claymine Canyon 762 Comment
  CAS-BOT-BC402181  Allophyllum glutinosum R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49604 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA638970  Allophyllum glutinosum Valerie L. Soza, LeRoy Gross 1999-6-8 497 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  UCD169758  Allophyllum glutinosum R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49604 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. 290 Comment
  UCSB47987  Alnus rhombifolia Roberts, Jr., Fred 1980-6-25 Orange Santa Ana Mtns., San Juan Canyon below Calif. Rte. 74, 2.4 km. ENE San Juan Guard Station; 0.3 km. WSW BM 1100 290 Comment
  RSA737481  Aloe saponaria Fred M. Roberts 2008-3-12 6735 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCR191461  Amaranthus blitoides A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34655 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  UCR44905  Amaranthus blitoides B. G. Pitzer, L. F. LaPre 1986-10-20 0314 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  UCD130604  Amaranthus blitoides Beecher Crampton 1972-6-15 8812 Orange Irvine area, UC South Coast Field Station. Comment
  IRVC23146  Amaranthus deflexus Fred M. Roberts 1985-7-11 2026 Orange San Joaquin Hills: Laguna Canyon, Laguna Canyon Road near Laguna Lakes, 5.0km ENE Signal Peak. southern coastal 112 Comment
  JEPS54308  Amaranthus hybridus Lawrence M. Booth 1932-7-21 1295 Orange Anaheim Creek Comment
  IRVC22955  Amblyopappus pusillus Karlin G. Marsh 1986-10-18 Orange Santa Ana Canyon, Featherly Park; in sandy wash. Yorba Linda Comment
  UC1543151  Amblyopappus pusillus Donald G. Nelson 1935-4-14 280 Orange along main coast highway, edge of dry mesa facing Newport Bay Newport Beach Comment
  UCR17118  Amblyopappus pusillus N. J. Moriarty 1973-5-27 730527 -5 Orange San Clemente State Beach, 0.2 mi. south of end of Ave. Califia Comment
  UCR109972  Ambrosia chamissonis R. D. Goeden, Don W. Ricker 1970-2-19 s.n. Orange South Coast, Newport Beach, NW edge of town between Seashore Dr., Neptune Ave., 56th and 58th Streets 2 Comment
  UCR92764  Ambrosia chamissonis F. M. Reed 1933-9-26 8102 Orange South Coast, Arch Beach, near South Laguna 0 Comment
  UCSB48034  Ambrosia chamissonis Roberts, Fred 1981-9-26 Orange Huntington Beach; Calif. Rte. 1, near mouth of Santa Ana River, 0.1 km. N jct. Brookhurst Ave.; 0.1 km. SW Bench Mark 7 2 Comment
  POM324260  Ambrosia chamissonis var. chamissonis Barbara L. Wilson 1967-6-3 22 Orange Laguna Beach. 30 Comment
  CDA10047  Ambrosia psilostachya D. G. Kelch 2006-12-9 6 .551 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  JEPS41031  Ambrosia psilostachya L. M. Booth 1932-8-5 1355 Orange Bolsa Creek Comment
  RSA0042768  Ambrosia psilostachya Fred M. Roberts 2012-7-18 7679 Orange San Joaquin Hills: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  RSA703089  Ambrosia psilostachya Fred M. Roberts, Arthur Davenport 2003-9-11 6005 Orange Rancho Mission Viejo: Donna O' Neill Land Conservancy. Cristianitos Cyn., 0.79 km N Sycamore Gate 0.23 km w of Crisianitos Road. 126 Comment
  RSA69486  Ambrosia psilostachya E. L. Paddock 1951-8-1 s.n. Orange Glidden Mill, Buena park, 1 mi. east of Hansen Road. Comment
  RSA800133  Ammannia coccinea Justin M. Wood 2010-9-29 2746 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  CAS-BOT-BC180616  Amorpha californica var. californica L. R. Abrams 1901-6-1 1828 Orange Santa Ana Mts. Comment
  CAS-BOT-BC180618  Amorpha californica var. californica P. C. Everett 1935-6-19 7235 Orange 1/2 mi. below (W.) head of canyon, Trabuco Canyon, Santa Ana Mts. 1066 Comment
  RSA485153  Amorpha californica var. californica E. R. Johnson 1929-10-1 636 Orange Rancho Santa Ana. Comment
  RSA699548  Amsinckia douglasiana J. R. Bruff s.n. Orange Roadside. Comment
  SBBG40481  Amsinckia intermedia J. Ingram 1960-3-29 257 Orange 3 mi above O'Neill Park, Trabuco Cyn Comment
  UC484243  Amsinckia intermedia C. B. Wolf 1931-3-6 Orange e side of Orange County Park 152 Comment
  UCR191417  Amsinckia intermedia A. C. Sanders, Fred M. Roberts 2008-4-8 34755 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  RSA0089446  Amsinckia intermedia Daniel Truong 1991-5-5 10 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of closed area. Comment
  UCD119276  Amsinckia intermedia Francia Chisaki 1957-4-3 926 Orange 6 miles S of Irvine, just S of El Toro near top of hill on Highway 101. Comment
  UCSB15050  Amsinckia intermedia Breedlove, Dennis 1962-3-9 Orange 6.4 miles east of San Juan Capistrano on State 74 121 Comment
  IRVC217  Amsinckia menziesii var. intermedia J. Schram 1965-4-18 Orange Corona del Mar, Corona Highland Gully [=Buck Gully?]. Newport Beach Comment
  IRVC228  Amsinckia menziesii var. intermedia I. L. Wiggins 1966-3-4 20495 Orange Santa Ana Canyon], Riverside Fwy, 4.5mi E Newport Fwy exit; in full sun, [annual grassland]. Anaheim Comment
  UCR140807  Anagallis arvensis Robin G. Marushia 2004-5-4 012 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  UCR239627  Anagallis arvensis Fred M. Roberts 2012-4-24 7516 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  UCR96890  Anagallis arvensis Scott D. White 1993-4-28 1288 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  CAS-BOT-BC400329  Anemopsis californica Herbert L. Mason 1926-4-25 2902 Orange Near Laguna Comment
  POM201881  Anemopsis californica L. M. Booth 1932-7-19 1280 Orange Bolsas Marsh. Comment
  RSA0042764  Anemopsis californica Fred Roberts 2012-7-18 7671 Orange San Joaquin Hills: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  UCR241047  Anemopsis californica Robert DeRuff 2011-1 274 Orange South Coast, Upper Newport Bay, Santa Ana Heights off Bayview Trail 5 Comment
  IRVC7985  Anthemis cotula T. W. Mulroy 1973-5-31 1901 Orange near Sand Canyon Reservoir. San Joaquin Hills Comment
  CAS-BOT-BC84724  Anthemis cotula Carl B. Wolf 1932-7-7 s.n. Orange Bryant Ranch, Bryant Ave. At pump house Comment
  RSA697  Antirrhinum coulterianum J. T. Howell 1927-6-5 34 Orange Rancho Santa Ana, near east boundary. 152 Comment
  UCR193365  Antirrhinum coulterianum A. C. Sanders, Mitch Provance 2008-5-20 35426 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR250866  Antirrhinum coulterianum Dick Newell, Don Millar 2014-4-29 367 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon wash 0.5 mi. above lower gate at 241 Toll Rd. 257 Comment
  UCR657  Antirrhinum coulterianum Geoffrey Matthews, Jim Hearne, Robin Maetche 1971-5-15 s.n. Orange Peninsular Range; Santa Ana Mtns., 3 mi north of Morrill Valley on Hwy 74 Comment
  JEPS83328  Antirrhinum kelloggii David M. Thompson 1983-5-11 301 Orange On private road up Williams Canyon, about 0.3 miles up from Santiago Canyon Road. El Toro Quad. (7.5', 1968) 365 Comment
  RSA650901  Antirrhinum kelloggii R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA0009199  Antirrhinum multiflorum Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6533 Orange Along dirt road on ridge between Fremont and Black Star Cyns., 5.2km ENE Irvine Lake Spillway and 1.7km W Hidden Ranch. 739 Comment
  RSA737890  Antirrhinum multiflorum R. E. Riefner 2008-5-15 09 -83 Orange Irvine Ranch Reseve, N Irvine Ranch, E Fork cliffs at upper Fremont Canyon along Black Star SCE road. 610 Comment
  UCR232762  Antirrhinum multiflorum Robt. L. Allen, Trisha Smith, Mike Kahle 2006-6-21 s.n. Orange Peninsular Range; Santa Ana Mtns., Fremont Canyon, ridge to the east, saddle between Fremont and Black Star Canyon watersheds, north end of unpaved Lakeview Road, base of Southern California Edison tower #33-1 M33T1A 761 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
  RSA552930  Antirrhinum nuttallianum subsp. nuttallianum Fred M. Roberts, R. E. Riefner 1989-5-2 4331 Orange Aliso-Wood Canyons Regional Park: Lower Wood Canyon, 3.5 kilometers SSE Multon Peak. 43 Comment
  JEPS83381  Antirrhinum nuttallianum subsp. subsessile David M. Thompson 1983-5-11 303 Orange 0.7 mi w Dana Point, Del Obispo St intersection w/ Golden Lantern St (above roofed picnic area on steep slope below high sea cliff (condominium on top), across road from parking lot this is directly on the water); Dana Point, Dana Point Quad. (7.5', 1968) 7 Comment
  UCR162200  Antirrhinum nuttallianum subsp. subsessile Robert DeRuff 1983-1 275 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, Castaway's Bluffs 24 Comment
  POM354883  Antirrhinum nuttallianum subsp. subsessile Thekla Mohr 1917-04 s.n. Orange Laguna. Comment
Read comments
Nov 25 2014
  RSA518  Apiastrum angustifolium J. T. Howell 1927-6-17 150 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA700187  Apium graveolens R. H. McArthur 1934-5-10 s.n. Orange 1916 Wash 4 mi. west 1 mi. south S.A. Comment
  UCR241665  Apocynum cannabinum Dick Newell, Judy Booth 2013-5-28 331 Orange Peninsular Range; Santa Ana Mtns., Agua Chinon Wash, 1.12 mi. due west of Bolero Point, Limestone Canyon Rd. 269 Comment
  RSA725520  Araujia sericifera Fred M. Roberts, Robert L. Allen 2007-9-28 6604 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  IRVC20647  Arbutus menziesii 1971-4-19 Orange Upper Trabuco Canyon. T.V. St. John Santa Ana Mountains Comment
Read comments
Jan 4 2010
  SD255137  Arbutus menziesii R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49826 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA629338  Arctostaphylos glandulosa C. J. Fotheringham, Jon E. Keeley 1996-6-24 27644 Orange Ca. 3 km west of Sierra Peak. 700 Comment
  RSA658640  Arctostaphylos glandulosa R. W. Hufstader 1971-3-29 64 Orange Collected in Harding Canyon off Harding Cyn. Rd. ca. 5 miles from Tucker Sac. Cleveland Nat. Forest. 762 Comment
  CAS-BOT-BC23106  Arctostaphylos glandulosa subsp. glandulosa Robert F. Thorne; J. Olmsted 1963-7-26 32827 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1188 Comment
  RSA629318  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15525 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA629324  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15502 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  RSA629329  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15515 Orange Road to Los Pinos Peak (3S04), 2 km northeast of Blue Jay Campground and 1 km above 5S05. North of Hwy. 74. 1100 Comment
  RSA629332  Arctostaphylos glandulosa subsp. glandulosa C. J. Fotheringham, Jon E. Keeley 1996-6-24 27643 Orange Ca. 3 km west of Sierra Peak. 700 Comment
  UCD105711  Arctostaphylos glandulosa subsp. glandulosa K. M. Meyer; A. Townesmith 2007-3-10 2 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  POM254954  Arctostaphylos glandulosa subsp. zacaensis W. Pequegnat 1940-4-13 s.n. Orange Modjeska Springs, Santa Ana Mts. 1311 Comment
  UC284866  Arctostaphylos glandulosa subsp. zacaensis P. A. Munz 1923-5-7 7741 Orange slopes above Santiago Peak 1219 Comment
  RSA0054828  Arenaria douglasii Keith E. Hoffmaster 1936-5-3 723 Orange Santa Ana Mts. (Santiago Peak). Comment
  RSA18605  Argemone munita subsp. robusta Carl B. Wolf 1937-12-3 9382 Orange Main divide motorway. Between Santiago Peak and Modjeska Peak. 1646 Comment
  RSA105977  Argemone munita subsp. robusta Gerald B. Ownbey, Findley Ownbey 1954-7-2 2177 Orange Between Modjeska Peak and Santiago Peak 1524 Comment
  UCR215303  Argyranthemum foeniculaceum Fred M. Roberts 2008-3-27 6814 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Outlook 1, 0.5 km west of Marine Institute, Dana Point Harbor 45 Comment
  UCSB52468  Aristida adscensionis Roberts, Fred; Marsh, K. 1983-2-25 Orange Laguna Beach, Goff Ridge, southern Temple Hill, 0.9 km NNE Goff Island 263 Comment
  RSA749350  Aristida purpurea Fred M. Roberts 2008-4-22 6923 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn.,along Haul Rd. near asphalt plant, 2.2 km ENE Rattlesnake Reservoir dam and 2.2 km WNW Bee Peak, Irvine Ranch Conservancy. 188 Comment
  RSA660594  Aristida purpurea var. parishii R. E. Riefner 2000-7-8 20 -629 Orange NCCP North Ranch Policy Plan Area. On ridgeline overlooking upper W fork of Fremont Canyon; located E of Main Divide Road and SE from Windy Ridge cypress forest. 438 Comment
  UCR130496  Aristida purpurea var. parishii R. E. Riefner Jr. 2000-8-3 00- 7012 Orange Santa Ana Mountains, North Ranch Policy Plan Area, east of Main Divide Road and Windy Ridge 535 Comment
  POM257051  Arnica discoidea W. Pequegnat 1940-4-13 s.n. Orange Modjeska Springs, Santa Ana Mts. 1311 Comment
  RSA759263  Arnica discoidea Robt Allen, Christopher M. Barnhill 2008-5-26 s.n. Orange upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs forest gate, 0.8 road miles down from junction with Main Divide Truck Trail. SW end of short road spur. 1313 Comment
  RSA689539  Artemisia biennis R. E. Riefner 2003-8-17 03 -330 Orange Costa Mesa, Talbert Regional Park, Discovery Walk Road and Balboa Avenue. 3 Comment
  CAS-BOT-BC133228  Artemisia californica T. B. Salvato 2010-10-27 5137 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  CDA23141  Artemisia californica R. E. Riefner Jr. 2006-8-25 06 -410 Orange City of Dana Point, Salt Creek Beach Park, vicinity of Dana Strand Road and Selva Road. Comment
  CHSC108498  Artemisia californica R. E. Riefner Jr. 2006-8-25 06 -410 Orange City of Dana Point, Salt Creek Beach Park, vicinity of Dana Strand Rd. and Selva Rd. UTM:11S 0433601E 3702917N. 1 Comment
  IRVC16742  Artemisia californica Gordon A. Marsh, A. B. McGee 1981-5-22 Orange UCI Ecological Preserve, hill 4. Irvine Comment
  IRVC28770  Artemisia californica Elizabeth H. Hook, Caroline Tran 2006-2-4 1 Orange San Joaquin Marsh; NW bluff edge Southern Coastal 5 Comment
  RSA0044743  Artemisia californica Fred M. Roberts, Arthur Davenport 2003-9-11 6018 Orange Rancho Mission Viego: Donna O'Neill Land Conservancy, Cristianitos Cyn., 85m SSW Sycamore Gate, 35m W of Cristianitos Road. 119 Comment
  RSA781180  Artemisia californica T. B. Salvato 2010-10-27 5124 Orange Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 52 Comment
  UC536946  Artemisia californica Lawrence M. Booth 1932-7-27 1327 Orange Newport Bay Comment
  UCR186679  Artemisia californica T. B. Salvato, Katie Kurtz 2006-10-15 1912 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  UCR228798  Artemisia californica Dick Newell, Don Millar 2011-5-3 139 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  UCSB68454  Artemisia californica Hook, Elizabeth; Tran, Caroline 2006-2-4 Orange Southern Coastal: San Joaquin Marsh; NW bluff edge (Tustin 7.5': 11s -420502E, 3724694N) Comment
  IRVC25177  Artemisia douglasiana Fred M. Roberts, Brenda Fugle 1986-10-1 3156 Orange Laguna Hills; creek channel along Cabot Rd. ca. 1.0km N Pacific Park Pkwy. Southern Coastal 99 Comment
  RSA417326  Artemisia dracunculus F. R. Fosberg 1931-6-21 S 5089 Orange Lower Santiago Canyon. Comment
  SD72851  Artemisia dracunculus F. R. Fosberg 1931-6-21 S 5089 Orange Lower Santiago Canyon Comment
  UC1119516  Artemisia tridentata subsp. tridentata H. E. Norton 1931-3-28 51 Orange Corona Quadrangle Comment
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Aug 13 2014
  RSA0031759  Arundo donax R. F. Thorne 1977-11-21 50815 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  SD240828  Asclepias curassavica R. E. Riefner Jr. 2011-8-19 11 100 Orange City of Laguna Beach, bluff area west of West Street and Pacific Coast Highway. 3 Comment
  IRVC19386  Asclepias fascicularis R. L. Allen 1978-8-27 s.n. Orange Laguna Canyon; disturbed area, roadside. San Joaquin Hills? Comment
  UCR197701  Asclepias fascicularis A. C. Sanders, Fred M. Roberts 2008-9-18 36086 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCR103705  Asparagus asparagoides B. G. Pitzer, T. Tennant 1997-11-8 3372 .1 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  POM8680  Aspidotis californica P. A. Munz, R. D. Harwood 1920-4-24 3743 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  IRVC177  Asplenium bulbiferum McGuire 1965-5-4 HS0564 Orange Corona del Mar: Bayside Dr.. Southern Coastal Comment
  RSA696240  Aster exilis Keith E. Hoffmaster 1934-10-7 s.n. Orange Near Santa Ana Comment
  PASA1804  Aster exilis Frank W. Peirson 1919-11-8 Orange Aliso Creek at Tie Canyon, San Gabriel Mts. Comment
  POM202111  Aster subulatus var. ligulatus L. M. Booth 1932-8-5 1356 Orange Bolsas Marsh. Comment
  SEINET878948 Image available Asteraceae D. D. Keck 1933-1 2537 Orange Seal Beach. Comment
  UCR170789  Astragalus brauntonii Adrian Wolf, Paul Galvin 2003-8-11 s.n. Orange Santa Ana Mtns., North Ranch Policy Plan Area, Gypsum Canyon 284 Comment
  RSA699637  Astragalus didymocarpus Keith E. Hoffmaster 1935-4-19 s.n. Orange Santa Ana Mts. (Trabuco Rd.) 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
  CAS-BOT-BC186731  Astragalus gambelianus Scott D. White; Noel Davis 1998-4-24 6338 Orange Santa Ana Mtn. foothills. Mission Viejo Area: Aliso Creek watershed, east of El Toro Rd. just N of jtn. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow 500 Comment
  RSA554629  Astragalus trichopodus Scott D. White 1992-10-13 957 Orange Vicinity of city of Brea, immediately N of Carbon Canyon Road and East of Placentia Avenue. +- 1 mile (airline) S/SE of Tonner Canyon. 183 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
  CAS-BOT-BC194063  Astragalus trichopodus var. lonchus George H. Vansell 1936-5-7 s.n. Orange Trabuca Creek, N of San Juan Capistrano Comment
  SD255167  Astragalus trichopodus var. lonchus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49770 Orange Santa Ana Mountains; Trabuco Canyon. Comment
  CAS-BOT-BC170565  Atriplex Mark A. Elvin; D. Kelch 2006-12-9 5306 Orange Newport Backbay; Big Canyon, lower end - Southern Coastal 3 Comment
  IRVC29877  Atriplex Mark A. Elvin, D. Kelch 2006-12-9 5306 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA737849  Atriplex R. E. Riefner 2006-10-19 06 -546 Orange City of Lake Forest, 0.5 mile N of Alton Pwy on E side of SR 241. 230 Comment
  SBBG132289  Atriplex amnicola R. E. Riefner Jr. 2006-4-17 06 -155 Orange upper Newport Bay, near Bayview Wy and Bayview Pl 6 Comment
  RSA743668  Atriplex amnicola R. E. Riefner 2007-8-4 7 -344 Orange City of San Juan Capistrano, San Juan Creek, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  POM293160  Atriplex californica Lyman Benson 1946-4-27 12054 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  RSA542649  Atriplex californica Fred M. Roberts 1988-10-12 4159 Orange San Clemente State Park: c.a. 0.2 km SE end of Ave. California along Santa Fe RR. 3 Comment
  RSA615542  Atriplex californica Robb Hamilton 1989-7-20 s.n. Orange Newport Beach: along Pacific Coast Hwy just west of jct with Newport Blvd. 0 Comment
  UCSB52924  Atriplex californica Roberts, Jr., Fred 1983-3-10 Orange Dana Point Headlands: south of Dana Strand Rd., south of Dana Strand Beach, 1.0 km. W Dana Point Harbor; 0.9 km. SW Richard Henry Dana School 35 Comment
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Feb 9 2020
  POM201811  Atriplex canescens L. M. Booth 1932-7-1 1249 Orange Newport Lagoon. Comment
  RSA256  Atriplex canescens J. T. Howell 1927-7-29 519 Orange Near east boundary of Rancho Santa Ana. 152 Comment
  UCR98213  Atriplex canescens subsp. canescens B. G. Pitzer 1996-4-30 2789 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA580939  Atriplex coulteri D. E. Bramlet 1994-4-30 2377 Orange San Joaquin Hills. At the head of Bommer canyn, approximatly 30m. NE of the rideline truck trail, near peak 1033. 296 Comment
  RSA598021  Atriplex coulteri D. E. Bramlet 1994-2-3 2363 Orange San Joaquin Hills. At the head of Bommer canyon, approximatly 30m. NE of the rideline truck trail, near peak 1033. 296 Comment
  SD236264  Atriplex glauca D. Bramlet 1994-2-27 2365 Orange Newport Beach 7.5 Quad. Roadside area, some 120 meters east of intersection of Irvine Ave and University Drive, approximately 1 meter south of University Drive. 14 Comment
  UCR107440  Atriplex glauca B. G. Pitzer, M. Georgiady 1997-4-5 3090 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  UCR127689  Atriplex glauca D. E. Bramlet 1994-2-27 2365 Orange South Coast, Roadside, some 120 m east of intersection of Irvine Ave. and University Drive, c. 1 m south of University Drive Comment
  UCR191240  Atriplex glauca A. C. Sanders 2008-4-29 35139 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  RSA743662  Atriplex glauca R. E. Riefner 2006-6-30 6 -334 Orange City of Rancho Santa Margarita, vicinity of Towne Center Dr. and Alton Pkwy. 291 Comment
  RSA0028771  Atriplex lentiformis subsp. lentiformis Fred M. Roberts 2009-4-21 7112 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  POM201918  Atriplex leucophylla L. M. Booth 1932-8-5 s.n. Orange West Newport Beach Comment
  RSA478322  Atriplex leucophylla Anstruther Davidson 1902-09 s.n. Orange Newport Beach. Comment
  UC444306 Image available Atriplex parishii S. B. Parish and W. F. Parish Oct 1881 1119 Orange Costa Station; ; ; Costa Station, Los Angeles Co. Now in Orange Co Comment
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Jul 11 2007
  CLARK-A1528-1183  Atriplex patula subsp. hastata John C. Roos 1949-10-1 4678 Orange Doheney Beach 1-3 Comment
  RSA232223  Atriplex prostrata James Henrickson 1970-10-3 s.n. Orange 3 miles NE of Huntington Beach just N of Bolsa Chica Salt Marsh. 0 Comment
  UCD97575  Atriplex rhagodioides D. E. Bramlet 2003-6-17 3466 Orange Upper Newport Bay, Big Canyon. This site is located in Big Canyon, 128 m east of Backbay Drive and 70 m south of the existing maintenance road. 7 Comment
  HSC24271  Atriplex rosea James Henrickson 1970-7-24 5002 Orange 3 mi. NW of Huntington Beach near sandy 'Rabbit' Island in Bolsa Chica Salt Marsh near Inner Bolsa Bay 1 Comment
  RSA5960  Atriplex rosea C. B. Wolf 1932-9-13 s.n. Orange Bryant Ranch. 3/10 miles W of Los Alamitos Blvd.700 ft. south of Bryant Ave., (800 ft. east & 700 ft. south of NW corner of SW 1/4 sec. 30 T4S R11W) 7 Comment
  RSA743498  Atriplex semibaccata Fred M. Roberts 2008-7-10 7070 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  SEINET4136251  Atriplex semibaccata M. L. Conrad, David B. Dunn 1973-6-13 7124 Orange In vicinity of Laguna Beach.; 0 Comment
  UC1714443  Atriplex semibaccata P. A. Munz 1934-3-26 13136 Orange edge of salt marsh Newport Beach Newport Beach 4 Comment
  UCSC000222  Atriplex semibaccata I. J. Condit 2008-7-20 s.n. Orange Los Alamitos Comment
  POM201921  Atriplex semibaccata L. M. Booth 1932-6-9 1180 Orange Santa Ana River, 1 mile from ocean. Comment
  RSA297187  Atriplex serenana L. M. Booth 1932-7-1 1248 Orange Newport Bay. Comment
  CAS-BOT-BC176589  Atriplex serenana var. davidsonii L. R. Abrams 1917-6-23 6571 Orange Balboa Comment
  CDA2962  Atriplex suberecta Tom Perring, Tracy Pinckard 1994-3-2 s.n. Orange South Coast; Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd. Comment
  IRVC27507  Atriplex suberecta Mark A. Elvin 2004-5-2 3424 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  SBBG119391  Atriplex suberecta T. Perring with T. Pinckard 1994-3-2 Orange Marine Helicopter Station at the corner of Moffett Dr and Jamboree Rd, Tustin 11 Comment
  SD220052  Atriplex suberecta Mark A. Elvin 2004-5-2 3424 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  RSA48695A  Atriplex subspicata I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA65428  Atriplex subspicata F. W. Peirson 1924-10-19 s.n. Orange Wintersberg Comment
  RSA0042729  Avena barbata David Barrios 1991-5-1 17 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA184146  Avena barbata I. L. Wiggins 1966-2-18 20450 Orange 0.5 mile west of entrance to Rancho Santa Ana Comment
  RSA590948  Avena barbata Fred M. Roberts 1991-5-2 4777 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak., UTM Z113718000mN, 4 29 200m E 110 Comment
  CAS-BOT-BC146154  Avena fatua Ira L. Wiggins 1966-3-1 20481 Orange West edge of California State College at Fullerton Campus. Comment
  OBI7908  Avena fatua Kurt R. Neisess 1976-1-3 s.n. Orange Collected in the Fullerton Hills Comment
  RSA697311  Avena fatua Keith E. Hoffmaster 1936-4-14 s.n. Orange Santa Ana Comment
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Nov 20 2011
  RSA732058  Avena fatua A. C. Sanders, Fred M. Roberts 2008-3-25 34516 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA734680  Avena fatua A. C. Sanders, T. B. Salvato 2008-5-13 35336 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  SEINET14287461  Avena fatua R. Walker 1967-12-31 176 Orange Olive, ca 200 yds N of Lincoln Ave on Santa Ana Canyon Rd. 46 Comment
  RSA696691  Avena sativa Keith E. Hoffmaster 1927-5-5 s.n. Orange Santa Ana. Comment
  UCSB52947  Azolla filiculoides Roberts, Fred; Polek, M. 1983-11-16 Orange Newport Beach; upper Newport Back Bay near Back Bay Drive, 3.0 km. W UCI campus center 2 Comment
  RSA756322  Baccharis douglasii A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37201 Orange Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  RSA93209  Baccharis douglasii F. W. Peirson 1923-9-7 4035 Orange Holy Jim Canyon, trail to Santiago Peak, Santa Ana Mts 595 Comment
  CDA10367  Baccharis emoryi Hill, Lee 1951-9-9 B 51632 Orange Santa Fe Railroad tracks, near Red Hill Avenue, Santa Ana. 0 Comment
  LA103539  Baccharis emoryi Barry A. Prigge; 1983-12-17 5519 Orange Santa Ana Marsh and adjacent lowlands, southeasternmost part of oil field just N of Pacific Coast Highway between remnant Santa Ana River channel and dirt road 1 Comment
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Jun 12 2013
  POM50723  Baccharis emoryi Helen D. Geis 1902-12-7 519 Orange Santa Ana Comment
  RSA741701  Baccharis malibuensis R. E. Riefner Jr. 2008-7-2 08 -181 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Rd. 660 Comment
  CAS-BOT-BC99443  Baccharis pilularis P. C. Everett 1934-7-31 6045 Orange east of Administration Bldg., Rancho Santa Ana Botanic Garden 198 Comment
  CAS-BOT-BC99446  Baccharis pilularis B. Pitzer; T. Tennant 1997-11-8 3374 Orange Crystal Cove State Park: Pelican Point Area, grassland area between Pacific Coast Hwy & the bike trail 30 Comment
  IRVC29757  Baccharis pilularis Barry S. Nerhus, Mark A. Elvin 2006-11-4 10 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA613761  Baccharis pilularis B. Pitzer, T. Tennant 1997-11-8 3374 Orange Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 Comment
  UCR209677  Baccharis pilularis A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37204 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along SW side of Santiago Canyon Rd. near south edge of Irvine Lake 252 Comment
  IRVC9314  Baccharis pilularis subsp. consanguinea B. T. Gittins 1963-3-8 20 Orange Newport Bay; slope base. Newport Beach Comment
  IRVC28769  Baccharis salicifolia Barry S. Nerhus 2006-2-4 1 Orange San Joaquin Marsh; NW Edge of Marsh. Southern Coastal 3 Comment
  RSA685928  Baccharis salicifolia Fred M. Roberts 2003-3-27 5627 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  UCR223420  Baccharis salicifolia Dick Newell, Don Millar 2011-3-1 066 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  UC1532995  Baccharis salicifolia subsp. salicifolia Robert F. Thorne 1975-4-6 45577 Orange Head of Newport Bay Comment
  CAS-BOT-BC106669  Baccharis salicina John Thomas Howell 1927-10-22 3166 Orange Santa Ana River bottom, Santa Ana Canyon [Canon] 152 Comment
  SDSU6381  Baccharis salicina D. F. Howe 1945-10-20 1354 Orange Santa Ana river between Orange and Corona. Comment
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Oct 12 2011
  UCSB36207  Baccharis salicina Ferren, Wayne; Roberts, Fred 1980-8-27 Orange Newport Back Bay trending NW from Bayside Drive, ca. 3.5 km. NE of Rt. 1, Newport Beach 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
  RSA696792  Baccharis viminea R. H. McArthur 1934-2-3 s.n. Orange Roadside beyond El Modena Hills. Drainge Wash. Comment
  RSA724033  Bacopa monnieri R. E. Riefner 2004-9-3 4 -419 Orange City of Yorba Linda, N floodplain of Santa Ana River near Yorba Linda Regional Park. 96 Comment
  UCSB48022  Barbarea orthoceras Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.: meadow between Falcon Group Camp and Blue Jay Campground; 0.2 km. NNE Blue Jay Campground 1089 Comment
  POM201794  Batis maritima L. M. Booth 1932-8-5 1349 Orange Santa Ana Delta Comment
  POM48003  Batis maritima I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  UC1779705  Batis maritima Rudolf Schmid 1999-7-14 1999 -6 Orange Bolsa Chica Marsh, S of Seal Beach. From the S side of parking lot by HW1. Comment
  UCD114085  Batis maritima A. C. Sanders 1990-10-6 10195 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1. 1 Comment
  RSA92401  Bebbia juncea F. W. Peirson 1923-9-8 4043 Orange Trabucco Canyon. 427 Comment
  UCR237916  Beta vulgaris Mark A. Elvin 2003-2-2 2296 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA800671  Bidens laevis Justin M. Wood 2010-9-29 2750 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  IRVC24282  Bidens laevis Fred M. Roberts, G. A. Marsh 1985-10-26 2519 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  JEPS32527  Bidens pilosa W. L. Jepson 1940-10-6 20181 Orange Horse Bend, Santa Ana Canyon Santa Ana Canyon, Horseshoe Bend Comment
  POM201783  Bidens pilosa L. M. Booth 1932-7-19 1276 Orange Bolsas Marsh. Comment
  RSA659988  Bloomeria crocea Steve Teh 1994-5-20 22 Orange Modjeska Grade rd. 1/2 mile on trail above fire road. Comment
  RSA698737  Bloomeria crocea L. C. Hall 1934-4-1 s.n. Orange Panerama Heights Comment
  UCR100445  Bolboschoenus maritimus subsp. paludosus B. G. Pitzer 1996-4-30 2772 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCD55403  Bolboschoenus robustus B. Pitzer 1996-4-30 2772 Orange Upper Newport Bay, California Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. UTM 10 km cell: MH-1E, 2N. Costa Mesa. 6 Comment
  UCSB34951  Bolboschoenus robustus Ferren, Wayne; Whitmore, S. 1980-8-27 Orange In salt marsh of Newport Backbay; just W of Backbay Drive; ca. 3 km. NE of Rt. 1, Newport Beach Comment
  RSA37  Bothriochloa barbinodis J. T. Howell 1927-6-5 38 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA639703  Bothriochloa barbinodis Scott D. White, P. DeVries 1998-12-10 7203 Orange Brea: Tonner Canyon and adjacent slope, just east of 57 Freeway crossing. 137 Comment
  RSA731758  Bougainvillea glabra Fred M. Roberts, Sandy Leatherman 2007-11-9 6647 Orange San Juan Canyon along San Juan Creek, within the community of San Juan Hot Springs. 216 Comment
  CAS-BOT-BC95400  Bowlesia incana Scott D. White; Noel Davis 1998-4-24 6339 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd., N of jct. with Valley Vista Way 500 Comment
  IRVC25297  Bowlesia incana Helen Camp 1989-4-18 10 Orange Bell Canyon, lateral ridge on west side of canyon, 4.7km NNW Visitor Center; Casper's Regional Park 226 Comment
  SEINET3156098  Bowlesia septentrionalis E. K. Balls 1950-3-7 14446 Orange Administration Grounds of Rancho Santa Ana Botanic Garden Comment
  RSA734975  Brachychiton populneum A. C. Sanders, Fred M. Roberts 2008-6-17 35479 Orange Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCSB52932  Brachypodium distachyon Roberts, Fred; Marsh, K. 1983-5-13 Orange Dana Point Headlands; S of Pacific Coast Hwy, 0.5 km NW Dana Point Harbor; 0.4 km SSW Richard Henry Dana School 80 Comment
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Jan 27 2021
  UCR193931  Brassica geniculata A. C. Sanders, Fred M. Roberts 2008-7-16 35863 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  CDA22511  Brassica nigra D. Nguyen, C. Nguyen 2006-2-4 3 Orange Southern Coastal; San Joaquin Marsh; northwest edge of marsh. Comment
  RSA0084260  Brassica nigra Caralisa Breidenbaugh, Mark Breidenbaugh 1992-1-5 19 Orange 1/2 mile south of Chino Hills State Park Boundary. 198 Comment
  UCSB18585  Brassica rapa Reed, Robert 1964-3-26 Orange 150 feet N of corner of Orangewood and Euclid Ave., Anaheim 60 Comment
  UCR109634  Brassica rapa subsp. sylvestris G. S. Nuessly 1980-11-27 s.n. Orange Tustin. SE corner of 17th St. and Yorba Ave. 52 Comment
  CSUSB529  Brassica rapa subsp. sylvestris Shirley Hill 1963-3-23 630323 4 Orange Field in back of Enco Station on Carolina st. Placentia. Abandoned field with other weeds Comment
  RSA0073643  Brassica tournefortii Fred M. Roberts, Lee Ann Caranza, Eliza Maher 2009-4-7 7144 Orange South Coast Region: Dana Point Headlands: Dana Point CNLM Preserve, 0.7 km WNW Dana Point Marine Institute at Dana Point Harbor, near 2nd Lookout along trail. 49 Comment
  RSA792  Brickellia californica J. T. Howell 1927-11-5 801 Orange Racnho Santa Ana, W side. Comment
  UCR46574  Brickellia californica B. G. Pitzer, D. C. Hawks 1986-10-21 0349 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi east of Santa Ana, in hills N and east of South Coast Gun Club on Jeffrey Road in Hicks Canyon 183 Comment
  CAS-BOT-BC144299  Bromus arizonicus Ira L. Wiggins 1966-4-22 20617 Orange Shoulder of pavement along Associated Road between Yorba Linda Boulevard and Imperial Highway. Comment
  UCR99876  Bromus arizonicus Scott D. White 1993-3-5 1124 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  POM293859  Bromus carinatus Lyman Benson 1947-4-27 12343 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  RSA701598  Bromus carinatus Rankin s.n. Orange Santa Ana. Comment
  RSA731974  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-4-8 34751 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd 457 Comment
  RSA758895  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-4-22 35025 Orange Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 366 Comment
  SD241666  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-4-8 34751 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Road, above Dripping Springs Loop Road (El Toro 7.5'Q) 456 Comment
  UCR138441  Bromus carinatus R. E. Riefner Jr. 2000-6-22 20 575 Orange Santa Ana Mountains, North Ranch Policy Plan Area, NE property, along National Forest boundary, at powerline 756 Comment
  UCSB47948  Bromus carinatus Roberts, Dar 1980-5-3 Orange 2.0 km NW of jct between Hwy 74 and Main Divide Truck Trail 960 Comment
  RSA0013959  Bromus diandrus Fred M. Roberts 2008-5-7 6939 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
  UCR102005  Bromus diandrus B. G. Pitzer 1997-3-25 3039 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  UCR190997  Bromus diandrus A. C. Sanders, Fred M. Roberts 2008-4-22 35051 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  RSA598967  Bromus hordeaceus Scott D. White 1997-3-28 4845 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  RSA41  Bromus hordeaceus J. T. Howell 1928-3-17 865 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA542368  Bromus hordeaceus Fred M. Roberts 1988-4-10 3915 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout., UTM 37 31 1000m N, 4 39 600m E. 415 Comment
  RSA685934  Bromus hordeaceus subsp. hordeaceus Fred M. Roberts, David E. Bramlet 2003-3-27 5618 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Chistianitos Cyn., 0.69km N Sycamore Gate, 0.96km W Chistianitos Rd. 122 Comment
  RSA0127416  Bromus madritensis subsp. rubens Fred M. Roberts 2016-3-17 8011 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  RSA539376  Bromus pseudolaevipes Fred M. Roberts 1988-6-9 4068 Orange Santa Ana Mountains: Main Divide Truck Trail, Upper Silverado Canyon, 1.9 kilometer N Modjeska Peak., UTM 3733000mN, 449500mE 1128 Comment
  RSA697036  Bromus rigidus Keith E. Hoffmaster 1924-4-15 s.n. Orange Santa Ana Comment
  CAS-BOT-BC161820  Bromus rubens Ira L. Wiggins 1966-3-4 20494 Orange Along shoulder of Peralta Avenue, near junction of Newport Freeway and Riverside Highway. Comment
  RSA697681  Bromus rubens Anonymous 45 Orange Orange County park Comment
  RSA734017  Bromus rubens A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34610 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  RSA737546  Bromus rubens Fred M. Roberts 2008-3-12 6715 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA0042732  Bromus rubens David Barrios 1991-5-1 18 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA184135  Bromus rubens I. L. Wiggins 1966-3-18 20531 Orange California State College at Fullerton. Comment
  RSA542557  Bromus rubens Fred M. Roberts 1989-3-17 4206 Orange Aliso-Wood Canyon Regional Park: Aliso Canyon, 3.4 kilometers SSE Moulton Peak., UTM 3711900m N, 432900m E 55 Comment
  RSA650419  Bromus rubens R. B. Newcom 1948-4-24 25 Orange approx. 3 miles N.W. of Irvine Park. Comment
  UCD59710  Bromus sterilis Scott D. White; Noel Davis 1998-5-21 6548 Orange Santa Ana Mtn. foothills. Mission Viejo Area: Aliso Creek watershed, east of El Toro Rd., just N of jtn. w/ Valley Vista Wy. Large proposed subdivision called 'Saddleback Meadow. 304 Comment
  RSA699295  Calandrinia R. H. McArthur 1934-3-10 s.n. Orange Tomatoe Springs Comment
  CAS-BOT-BC354307  Calandrinia breweri R. E. Riefner, Jr. 2008-3-5 08 -31 Orange Irvine Ranch Reserve, North Irvine Ranch, S of Windy Ridge Rd., ca 0.5 mi from West Fork of upper Fremont Canyon 508 Comment
  RSA737235  Calandrinia breweri R. E. Riefner 2008-4-15 08 -70 Orange Irvine Ranch Reserve, North Irvine Ranch, S of Windy Ridge Rd. ca. 0.5 mi from West Forst of upper Fremond Canyon. 496 Comment
  CDA5108  Callistemon viminalis R. E. Riefner Jr. 2006-11-12 06 -669 Orange City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay near SR-73 overpass. Comment
  RSA723962  Callistemon viminalis R. E. Riefner Jr. 2006-11-12 06 -559 Orange City of Newport Beach, Irvine Coast Trail at San Diego Creek, near SR-73 crossing, S of Jamboree Rd. 3 Comment
  RSA708813  Callitriche marginata Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6162 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  HSC15349  Calochortus catalinae S. M. Clapp 1966-4-3 1 Orange 1.0 mi. N of Orange County-Olinda Dump 61 Comment
  RSA0065925  Calochortus catalinae Allison D. Rudalevige 2015-3-25 ADR 11 Orange City of Laguna Beach, between Hobo Canyon and Aliso Creek. 199 Comment
  RSA649058  Calochortus catalinae D. E. Bramlet 2000-4-17 2987 Orange West of Blind Canyon and north of Irvine Park and SW of the MDW [Metropolitan Water District] access road. 220 Comment
  RSA749646  Calochortus catalinae D. E. Bramlet 2008-6-3 4289 Orange Unspecified. 483 Comment
  RSA753423  Calochortus catalinae D. E. Bramlet 2008-5-20 4279 Orange N Loma Ridge, 30m east of the access road, 762m west of Hwy 241 & 1.13km south of Santiago Cyn Road. 344 Comment
  SD232135  Calochortus catalinae Mark Elvin, Charles Gorenst 1996-3-16 113 Orange Coastal Plains & Basins; south Coastal Plain region: Crystal Cove State Park. 300 m down hill from no brains trail. Comment
  UCR192228  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-5-6 35260 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  RSA0108729  Calochortus catalinae J. T. Howell 1928-3-17 863 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA649686  Calochortus plummerae R. E. Riefner 2000-7-8 20 -625 Orange NCCP North Ranch Policy Plan Area. On ridgeline overlooking upper W fork of Fremont Canyon; located E of Main Divide Road and SE from Windy Ridge cypress forest. 438 Comment
  RSA68633  Calochortus splendens Frank W. Peirson 1924-5-31 4669 Orange 5 miles southeast of Laguna Beach. Comment
  UCR192071  Calochortus splendens A. C. Sanders, Fred M. Roberts 2008-5-6 35247 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR223435  Calochortus splendens Dick Newell, Don Millar 2011-3-1 075 Orange Peninsular Range; Santa Ana Mtns. Foothills, MWD road east of outdoor education property, 1.6 mi. NW (312 deg. ) of Irvine Lake dam 258 Comment
  UCR52320  Calochortus splendens R. Ascanio 1988-5-25 s.n. Orange Hwy 74 c. 5 mi east of San Juan Capistrano Comment
  CAS-BOT-BC492702  Calochortus splendens Le Roy Abrams 1901-6-16 1798 Orange Trabuco Canon Comment
  UC1294007  Calochortus weedii E. K. Balls 1958-6-27 23278 Orange 2.8 mi e Silverado Station; Santa Ana Mts., Silverado Canyon 731 Comment
  RSA0042761  Calochortus weedii J. Vlahos 1934-6-2 s.n. Orange Hills around Orange Co. Park. Comment
  RSA0014077  Calochortus weedii var. intermedius Fred M. Roberts 2008-5-27 7003 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., c.a. 0.2km beyond Hicks Cyn., Gate, 2.2km WNW Bee Peak, Irvine Ranch conservancy 213 Comment
  RSA131397  Calochortus weedii var. intermedius E. K. Balls 1958-6-27 23278 Orange Silverado Canyon, Santa Ana Mountains, 2.8 miles E from Silverado Station. 732 Comment
  RSA581433  Calochortus weedii var. intermedius Fred M. Roberts 1989-6-7 4376 Orange Santa Ana Mountains: Upper Gypsum Canyon along divide between Gypsum and Blind Canyon, 6.3 kilometers WSW Sierra Peak. 411 Comment
  RSA68621  Calochortus weedii var. intermedius Frank W. Peirson 1927-6-20 7350 Orange Site for botanical garden (Rancho Santa Ana) Comment
  RSA690971  Calochortus weedii var. intermedius Scott D. White, Michael Honer 2003-5-29 9427 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  RSA788903  Calochortus weedii var. intermedius Fred M. Roberts 2008-6-12 7043 Orange Lomas de Santiago: Loma Ridge, ridge north of Shoestring Road, 2.2 km S Irvine Lake dam, Irvine Ranch Land Conservancy. 325 Comment
  RSA0045493  Calochortus weedii var. weedii Wendy Boes 2009-6-19 2009 -019 Orange Peninsular Ranges; Santa Ana Mountains; Trabuco Canyon, off Long Canyon Rd. on water tank access road. 812 Comment
  RSA17143  Calycadenia tenella C. B. Wolf 1936-6-17 7946 Orange Santa Ana Mountains, along Ortega Highway 5.6 miles above San Juan Capistrano. 76 Comment
  RSA587889  Calycadenia tenella Fred M. Roberts 1990-5-7 4610 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  RSA649679  Calycadenia tenella R. E. Riefner 2000-5-6 20 -444 Orange NCCP North Ranch Policy Plan Area: NE property; along powerline on National Forest boundary. 582 Comment
  POM256956  Calycadenia tenella W. Pequegnat 1940-6-12 s.n. Orange Collected on Los Pinos Portrero, 2 mi. S of Los Pinos Pk 945 Comment
  UCR191333  Calystegia macrostegia A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34616 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  UCR197690  Calystegia macrostegia A. C. Sanders, Fred M. Roberts 2008-9-18 36074 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCR220027  Calystegia macrostegia Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  SD152880  Calystegia macrostegia subsp. arida Steve Boyd, Tim Ross 1992-5-19 7419 Orange Southern Santa Ana Mountains, western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo. 365 Comment
  IRVC978  Calystegia macrostegia subsp. cyclostegia B. T. Gittins 1965-3-14 Orange bluff above cove. Dana Point Headlands 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
  RSA697154  Calystegia occidentalis subsp. occidentalis Minor Warne 1934-4-14 s.n. Orange Laguna Canyon. Comment
  SD38598  Calystegia soldanella Edith A. Purer 1932-8-31 4878 Orange Along Highway 101. Comment
  RSA16353  Camissonia bistorta Percy C. Everett 1935-6-18 s.n. Orange Santa Ana Mountains. Main divide motorway to Santiago Peak, 1 mile from Ortega Highway. 732 Comment
  RSA72203  Camissonia bistorta F. W. Peirson 1923-3-26 3411 Orange Canada Salada Creek, field about 1/4 mile from beach Comment
  RSA497  Camissonia californica J. T. Howell 1927-6-26 213 Orange Claymine Canyon near Sierra Peak. 244 Comment
  CSUSB188  Camissonia cheiranthifolia subsp. suffruticosa Cesareo Perez 1971-5-12 Orange Huntington State Beach, Pacific Coast Highway at Brookhurst Comment
  RSA357147  Camissonia cheiranthifolia subsp. suffruticosa Robert F. Thorne 1975-4-6 45584 Orange Head of Newport Bay. Comment
  UCR267189  Camissonia cheiranthifolia subsp. suffruticosa Fred M. Roberts 2010-3-12 7181 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  RSA539381  Camissonia hirtella Fred M. Roberts, Carol A. Roberts 1988-6-9 4087 Orange Santa Ana Mtns.: Modjeska Peak, 0.9km SW summit. 1542 Comment
  RSA731986  Camissonia hirtella A. C. Sanders, Fred M. Roberts 2008-4-8 34775 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  RSA598919  Camissonia ignota Scott D. White 1997-3-28 4847 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  SBBG40397  Camissoniopsis bistorta J. Ingram 1960-3-14 244 Orange La Palma Ave, ca. 2 blocks E of Knotts Berry Farm, Buena Park Comment
  CAS-BOT-BC160452  Camissoniopsis cheiranthifolia subsp. suffruticosa C. W. Tilforth 1975-9-3 1039 Orange At north-east shoreline of Upper Bay, Newport Beach Comment
  UCSB48058  Camissoniopsis cheiranthifolia subsp. suffruticosa Roberts, Fred 1982-4-3 Orange Dana Point Headlands, north of Dana Strand Road, 0.5km W Dana Point Harbor; 0.8 km SSW Richard Henry Dana School 80 Comment
  IRVC25563  Capsella bursa-pastoris Fred M. Roberts 1989-3-17 4203 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  IRVC9150  Capsella bursa-pastoris B. Gittins 1963-3-22 61 Orange Orange Coast College Campus. Costa Mesa Comment
  RSA697415  Capsella bursa-pastoris Snow 1929-2-16 3 Orange Santa Ana. Comment
  CAS-BOT-BC37592  Cardamine californica C. B. Wolf 1931-1-30 1826 Orange Santa Ana Mountains. Claymine Canyon. 304 Comment
  CAS-BOT-BC37595  Cardamine californica C. B. Wolf 1931-3-6 1851 Orange West slope of Santa Ana Mountains. Trabuco Canyon. Trabuco Camp Ground. 609 Comment
  RSA2106  Cardamine californica var. integrifolia C. B. Wolf 1931-1-30 1826 Orange Claymine Canyon, Santa Ana Mts. 305 Comment
  RSA369328  Cardamine californica var. integrifolia Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  UCR5159  Cardionema ramosissimum Barbara T. Gittins, O. F. Clarke 1966-3-19 902 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  SD245174  Carex barbarae R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49573 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA697497  Carex praegracilis Elisabeth Norland 1929-4-11 s.n. Orange Cypress. Comment
  RSA735747  Carex praegracilis A. C. Sanders, Fred M. Roberts 2008-6-17 35496 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff s Training Facility, just east of Hwy 241 280 Comment
  CAS-BOT-BC118493  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana, Peat lands 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
  RSA640969  Carpobrotus chilensis L. C. Wheeler 1931-6-8 s.n. Orange Balboa Comment
  RSA113266  Carpobrotus edulis E. K. Balls 1955-4-4 20422 Orange Coastal Strand, west end of Newport Beach. 3 Comment
  CDA37853  Carthamus creticus D. Asakawa 1988-1 s.n. Orange Off Tonner Canyon Road. 0 Comment
  POM6405  Castilleja affinis Philip A. Munz, Street, Williams 1919-5-3 2616 Orange Santa Ana River Canyon. Comment
  RSA425876  Castilleja affinis Albert J. Perkins 1909-3-1 13722 Orange Orange Co Park. Comment
  RSA82234  Castilleja affinis F. W. Peirson 1923-3-25 3376 Orange Aliso Canyon, near Laguna Beach. 152 Comment
  UCR191326  Castilleja affinis A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34609 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  RSA0010904  Castilleja affinis Mabel Harvey s.n. Orange Modjeska's Home Comment
  RSA0010908  Castilleja affinis Keith E. Hoffmaster 1927-4-8 530 Orange Santa Ana Mountains. Comment
  RSA553115  Castilleja affinis Fred M. Roberts, Carol A. Roberts 1989-5-11 4347 Orange Santa Ana Mountains: Upper Blind canyon, east fork, along power line maintainance road, 3.9km SE Walnut Reservoir. 381 Comment
  UCR150921  Castilleja affinis subsp. affinis Valerie Soza, LeRoy Gross 1999-6-7 480 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
  JEPS21373  Castilleja applegatei subsp. martinii Milo S. Baker 1938-5-17 13296 Orange Santa Ana Mts. Comment
  RSA732253  Castilleja exserta A. C. Sanders, Fred M. Roberts 2008-4-22 35039 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  UCR228774  Castilleja exserta Dick Newell, Don Millar 2011-5-10 152 Orange Peninsular Range; Santa Ana Mtns., above east side of Fremont Canyon on service road just below Lakeview Rd. 455 Comment
  UC1607987  Castilleja exserta subsp. exserta Donald G. Nelson 1935-3-23 185 Orange hills n Fullerton Comment
  UCR209355  Castilleja exserta subsp. exserta Fred M. Roberts 2008-4-8 6848 Orange Lomas de Santiago, Loma Ridge, Upper Dripping Springs Cnyn, 1.0 km northeast of Bee Peak, Irvine Ranch Conservancy 458 Comment
  UCSB17560  Castilleja exserta subsp. exserta Cummings, R. 1963-5-11 Orange 9 miles from San Juan Capistrano on U.S. Highway 101 alternate Comment
  RSA0043344  Castilleja foliolosa Nancy J. Mann 1976-5-20 s.n. Orange Harding Canyon, Santa Ana Mtns. Comment
  UCSB45138  Castilleja foliolosa Woicik, Richard 1976-5-21 Orange Modjeska Canyon; near fire station Comment
  UCSB56517  Castilleja foliolosa Anderson, J. 1966-3-7 Orange San Joaquin Hills; near bottom or Moro Canyon 91 Comment
  RSA448792  Castilleja minor subsp. spiralis M. B. Dunkle 1934-6-18 3989 Orange San Juan Canyon; Southern Coastal 305 Comment
  UCR191365  Caulanthus heterophyllus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34623 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  CAS-BOT-BC48494  Ceanothus crassifolius Marcus E. Jones 1930-3-3 26514 Orange Santa Ana mountains Comment
  RSA14727  Ceanothus crassifolius E. R. Johnson 1935-2-21 s.n. Orange Santa Ana River Bottom. Rancho Santa Ana. Comment
  RSA304750  Ceanothus crassifolius James R. Shevock 1971-2-25 197 Orange Mojeska Cyn, Santa Ana Mts. 305 Comment
  RSA0054953  Ceanothus crassifolius Keith E. Hoffmaster 1935-4-19 851 Orange Santa Ana Mts. [Orange or Riverside]. Comment
  SEINET13945801 Image available Ceanothus crassifolius S. Lambert 1981-1 1957 Orange Cleveland Nat'l Forest, 19.7 mi E of hwy. 5 by hwy 74 at San Juan Trail, 2100 ft elev. 640 Comment
  RSA6582109  Ceanothus integerrimus T. A. Daubert 1991-5-19 663 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, office planter. Comment
  RSA17220  Ceanothus integerrimus var. puberulus Carl B. Wolf 1936-6-22 8002 Orange Santa Ana Mts. Slopes of Modjeska Pk. at abouit the Head of Harding Canyon. 1220 Comment
  CAS-BOT-BC51167  Ceanothus leucodermis Carl B. Wolf 1941-8-15 11152 Orange Santa Ana Mts., W. slope Santiago Truck Trail 4.4 mi. belw main divide motorway 1066 Comment
  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
  UCSB48360  Ceanothus megacarpus var. megacarpus Roberts, Fred 1982-6-30 Orange LAGUNA NIGUEL: just N end of Pacific Island Dr., 1.6km ENE Aliso Peak 295 Comment
  RSA790670  Ceanothus oliganthus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49699 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  UCD169752  Ceanothus oliganthus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49701 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  UCR234147  Ceanothus oliganthus Dick Newell, Judy Booth 2012-5-6 249 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.2 miles NE of Maple Springs gate, Cleveland National Forest 695 Comment
  RSA0054960  Ceanothus oliganthus Keith E. Hoffmaster 1936-4-5 707 Orange Black Star can., Santa Ana Mts. Comment
  SD247718  Ceanothus oliganthus R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49699 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  CAS-BOT-BC63562  Ceanothus oliganthus var. orcuttii Carl B. Wolf 1941-8-15 11158 Orange Santa Ana Mts. along main divide motorway just no. of head of Trabuco truck trail. 1219 Comment
  UCR139198  Ceanothus oliganthus var. orcuttii Percy C. Everett 1935-6-19 7234 Orange Santa Ana Mtns., Main Divide Motorway, junction with Trabuco Canyon Truck Trail 1220 Comment
  RSA399811  Ceanothus papillosus var. roweanus Albert J. Perkins 1917-4-21 s.n. Orange Santiago Peak. South side. Comment
  RSA608242  Ceanothus papillosus var. roweanus Steve Boyd, Bart O'Brien 1998-1-13 10076 Orange Santa Ana Mountains: north end of the range, NW of Pleasants Peak, along Main Divide Road (3S04) ca. 4.9 mi south of Oak Flat, at saddle between Hagador and Baker canyons. 1165 Comment
  POM305816  Ceanothus spinosus Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1043 Orange Capistrano Canyon. Comment
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Dec 17 2011
  UC1071372  Ceanothus spinosus A. Lewis Apr 1934 383 Orange Santiago Canyon Cleveland National Forest, Corona Quad. Comment
  UCD112711  Ceanothus spinosus R. W. 1933-4-1 s.n. Orange Near Capistrano. 304 Comment
  OBI10327  Ceanothus tomentosus H. E. McMinn 1935-6-22 3927 Orange West of Covina, Santa Ana Mts Comment
  RSA3170  Ceanothus tomentosus subsp. olivaceus Carl B. Wolf 1932-3-8 2693 Orange Santiago Creek, 1 mil. E. Villa Park, W. base Santa Ana Mts. 152 Comment
  RSA724040  Cenchrus longispinus R. E. Riefner 2004-8-27 4 -387 Orange City of Irvine; San Diego Creek at Woodbridge High School, S of intersection of Barranca Rd. and West Yale Loop Rd. 27 Comment
  CAS-BOT-BC277102  Centaurea melitensis Ira L. Wiggins 1966-5-25 20663 Orange Along Nutwood Lane, south margin of campus of CSCF, Fullerton Comment
  RSA562805  Centaurea melitensis Steve Boyd, Timothy S. Ross 1992-5-20 7477 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building). 350 Comment
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Apr 29 2008
  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
  IRVC19500  Centaurium venustum Gordon A. Marsh 1983-6-9 s.n. Orange Laguna Beach; intermediate ridge between Arch and Portafina canyons. Southern Coastal Comment
  RSA391514  Centaurium venustum M. B. Dunkle 1934-6-18 3993 Orange San Juan Canyon. 305 Comment
  IRVC14862  Centaurium venustum Gordon A. Marsh, Karlin G. Marsh 1976-7-8 s.n. Orange Santa Ana Mtns: Lower San Juan Picnic Grounds near Hwy 74 [Ortega Hwy]. Peninsular Ranges Comment
  UCR63990  Centranthus ruber S. J. Myers 1989-5-4 s.n. Orange Peninsular Range; Santa Ana Mtns., along stream in Hot Spring Canyon, 1.2 mi north of Ortega Hwy (Hwy 74) Comment
  UC1424929  Centromadia parryi subsp. australis C. W. Tilforth 1975-9-6 1047 Orange ne shoreline Upper Bay; Newport Beach Comment
  CAS-BOT-BC288842  Centromadia parryi subsp. australis David D. Keck 1933-9-17 2524 Orange Westminster Comment
  RSA0037255  Centromadia parryi subsp. australis Sandy Leatherman, Melissa Riedel-Lehrke 2013-5-21 2013 -6 Orange Coastal Plains & Basins; South Coastal Plain region: South Orange County, 1.4 miles east of the intersection of Antonio Parkway and Crown Valley Parkway, in the undeveloped foothills. 146 Comment
  RSA655624  Centromadia pungens subsp. pungens C. Sprenger 2000-8-29 s.n. Orange Chino Hills. The site is located some 915m northeast from Palm Ae. (City of Yorba Linda), and 976m south of Telegraph Canyon Creek. 213 Comment
  IRVC22187  Cerastium fontanum subsp. vulgare Fred M. Roberts 1985-4-11 1646 Orange Dana Point Headlands; Weyerhaeuser Horticultural Research Station property. Southern Coastal 61 Comment
  UCR191437  Cerastium glomeratum A. C. Sanders, Fred M. Roberts 2008-4-8 34731 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA539367  Cercocarpus betuloides Fred M. Roberts 1989-2-21 4181 Orange Aliso-Woods Canyon Regional Park: Niguel Hill, 1.6 km ENE Aliso Peak. 268 Comment
  RSA708722  Cercocarpus betuloides Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6226 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 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
  UCR221892  Cercocarpus betuloides Dick Newell, Don Millar 2010-10-15 40 Orange South Coast, San Joaquin Hills, Laguna Wilderness parkm on the Willow Trail 220 Comment
  RSA688974  Cercocarpus minutiflorus Fred M. Roberts, David E. Bramlet 2003-4-10 5646 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  RSA528042  Cestrum nocturnum A. C. Sanders 1990-10-6 10187 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  RSA810  Chaenactis artemisiifolia J. T. Howell 1927-6-5 36 Orange just to E of Rancho Santa Ana 152 Comment
  UC34172  Chaenactis artemisiifolia W. C. Blasdale 1891-6-1 Orange Santiago Canon Comment
  CAS-BOT-BC283934  Chaenactis glabriuscula var. glabriuscula H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  HSC5295  Chaenactis glabriuscula var. glabriuscula J. W. Johnson 1961-3-29 Orange Newport Beach Comment
  RSA603363  Chaenactis glabriuscula var. glabriuscula Scott D. White, B. Leatherman 1997-6-12 5344 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  UC450954  Chaenactis glabriuscula var. glabriuscula F. A. MacF. 1931-3-1 2969 Orange Laguna Beach Comment
  CAS-BOT-BC283937  Chaenactis glabriuscula var. glabriuscula Palmer Stockwell 1935-5-12 1222 Orange 7 miles E of San Juan Capistrano Comment
  HSC7984  Chamaesyce albomarginata C. L. Hitchcock 1966-3-15 24140 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  CDA25868  Chamaesyce maculata Mark A. Elvin, B. S. Herhus 2006-11-4 5252 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  RSA554078  Chamaesyce serpens Scott D. White 1992-5-29 864 Orange Vicinity of city of Brea, immediately N of Carbon canyon Road & E of Placentia Avenue. +-1 mi. (airline) S/SE of Tonner Canyon. 183 Comment
  RSA602209  Chamaesyce serpillifolia L. C. Wheeler 1945-5-20 6046 Orange Rancho Santa Ana Botanic Garden: In front of assembly hall. Comment
  RSA797479  Chamaesyce supina R. F. Thorne 1977-11-21 49992 Orange Santa Ana Mountains: San Juan Canyon about 2 miles above San Juan Fire Station Comment
  IRVC844  Chamomilla suaveolens E. McRae 1965-4-8 Orange Costa Mesa Comment
  IRVC26723  Chasmanthe aethiopica Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3164 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA685771  Cheilanthes newberryi T. R. Pray 1961-2-14 1825 Orange San Juan Canyon along Ortega Hwy, near bridge just west of Cleveland National Forest Comment
  IRVC14987  Chenopodium album Anonymous 1976-10-28 Orange Nieblas School. Fountain Valley Comment
  JEPS89194  Chenopodium album Rimo Bacigalupi and L. Heckard 1962-3-25 8384 Orange old wagon track on hillslope near Handy Creek (3.5 mi e of El Modeno on road to Irvine County Park) Comment
  UCR179762  Chenopodium album R. E. Riefner Jr. 2006-10-8 06- 484 Orange South Coast, Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Road 51 Comment
  SEINET11940524  Chenopodium album J. F. Bright, Wyman, C. 1933-1 8178 Orange Deltoro Comment
  IRVC21735  Chenopodium ambrosioides Fred M. Roberts 1984-10-18 1423 Orange San Juan Canyon, 2.5km ENE San Juan Guard Station; 4.0km WNW Sitton Peak, Santa Ana Mountains 310 Comment
  UCR186133  Chenopodium ambrosioides T. B. Salvato, Katie Kurtz 2006-10-15 1920 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  CDA25887  Chenopodium berlandieri T. McCrainie, Mark A. Elvin 2006-9-23 3 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  UCR193018  Chenopodium berlandieri A. C. Sanders, Mitch Provance 2008-5-20 35414 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA234525  Chenopodium berlandieri var. sinuatum James Henrickson 1970-7-24 5019 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  RSA725467  Chenopodium berlandieri var. sinuatum Fred M. Roberts, Megan Lulow 2007-7-30 6551 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  RSA747591  Chenopodium californicum Fred M. Roberts 2000-5-5 5319 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., north slope, 1.6 kmSSW Bolero Spr. and 2.6 km W Bolero Lookout. 308 Comment
  UC494725  Chenopodium californicum Philip A. Munz 1932-3-29 12186 Orange along sea-bluffs Costa Mesa 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
Read comments
Mar 23 2020
  RSA64797  Chenopodium macrospermum var. farinosum F. W. Peirson 1919-11-8 1826 Orange Aliso Creek. 0 Comment
  UC536977  Chenopodium macrospermum var. halophilum Lawrence M. Booth 1932-7-19 1289 Orange Bolsas Marsh Comment
  IRVC22761  Chenopodium multifidum Karlin G. Marsh 1984-9-28 Orange Balboa Peninsula, collected near Balboa Pier in Balboa Pk., Newport Beach 0 Comment
  CDA32185  Chenopodium strictum var. glaucophyllum T. McCrainie, Mark A. Elvin 2006-9-23 3 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  UCR146879  Chlorogalum parviflorum Kathleen Stockwell 2000-6-18 s.n. Orange South Coast, Dana Point Headlands 61 Comment
  UC1618023  Chorizanthe Donald G. Nelson 1935-4-6 250 Orange e. San Juan Capistrano (and just s. of boundary of Cleveland Nat'l Forest) Comment
  UCR79271  Chorizanthe fimbriata Steve Boyd, T. S. Ross 1992-5-19 7423 Orange Santa Ana Mtns., San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) north into Aliso Canyon 457 Comment
  RSA0013863  Chorizanthe procumbens Fred M. Roberts 2012-5-10 7569 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  RSA678497  Chorizanthe procumbens Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5845 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  CAS-BOT-BC255253  Chorizanthe staticoides H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  RSA542527  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1988-5-25 3992 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker. 91 Comment
  RSA562719  Chorizanthe staticoides Steve Boyd, Tim S. Ross 1992-5-19 7422 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon,. 366 Comment
  RSA690974  Chorizanthe staticoides Scott D. White, Michael Honer 2003-5-29 9423 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  RSA698368  Chorizanthe staticoides Unspecified 1933-5-27 s.n. Orange San Joaquin Hills. Comment
  UC536917  Chorizanthe staticoides Lawrence M. Booth 1932-5-12 1031 Orange Newport Bay Comment
  UCR100460  Chrysanthemum coronarium B. G. Pitzer 1996-4-30 2763 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UC218029  Cirsium arvense Ethelbert Johnson 1922-6-12 Orange Xalisco; near Huntington Beach Comment
  IRVC14808  Cirsium occidentale var. californicum E. P. Cowper 1965-4-10 Orange Trabuco Canyon, passed Guard Station. Santa Ana Mountains Comment
  POM202373  Cirsium occidentale var. occidentale L. M. Booth 1932-6-7 1165 Orange Newport Lagoon. Comment
  POM352202  Cirsium occidentale var. occidentale M. B. Dunkle 1933-5-30 3582 Orange Santa Ana Canyon Comment
  UCR193012  Cirsium vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35459 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 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
  CAS-BOT-BC162647  Clarkia E. W. Lathrop 1974-6-27 7408 Orange 5 miles est of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l. Forest, Santa Ana Mountains 396 Comment
  SD181431  Clarkia deflexa Valerie Soza, LeRoy Gross 1999-6-7 475 Orange Santa Ana Mountains: West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UCR79273  Clarkia deflexa Steve Boyd, T. S. Ross 1992-5-19 7441 Orange S Santa Ana Mtns, San Mateo Canyon Wilderness Area. W edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon trail, downstream to confluence with Aliso Canyon. 335 Comment
  SEINET8726152 Image available Clarkia elegans Jean Coulson 1959-1 s.n. Orange Disneyland, Orange County, California. Found in painted Desert at entrance to Rainbow mines. 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
  RSA637490  Clarkia purpurea subsp. quadrivulnera Valerie L. Soza, LeRoy Gross 1999-6-8 507 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA581440  Clarkia purpurea subsp. quadrivulnera Fred M. Roberts, Gordon Marsh 1989-5-12 4359 Orange Santa Ana Mountains: Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.3 km WSW Laurel Springs. 430 Comment
  SEINET272172  Clarkia similis G. K. Helmkamp, E. A. Helmkamp 1997-4-24 1657 Orange Cleveland National Forest ; Cleveland National Forest 1.6 mi. SE of Ortega Hwy (CA-74) on Rd. 7-S14. UTM 10km cell: MH-5E 1N. San Juan Hot Spring 549 Comment
  HSC17683  Claytonia perfoliata subsp. mexicana J. W. Johnson 1961-4-2 Orange Newport Beach, along Upper Newport Bay. Comment
  RSA276911  Claytonia perfoliata subsp. mexicana J. M. Miller 1978-3-18 708 Orange San Juan Capistrano; 3.9 miles E of Hwy 101 junction in the San Juan Creek Valley, Hwy 74. 76 Comment
  RSA386282  Clematis pauciflora M. B. Dunkle 1936-3-14 4701 Orange San Juan Canyon. Comment
  RSA752037  Cleome isomeris Fred M. Roberts 2008-3-27 6812 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 1, 0.5km W Marine Institute (Dana Point Harbor). 45 Comment
  RSA449089  Cneoridium dumosum Thekla Mohr 1517 Orange Laguna. Comment
  POM88657  Collinsia heterophylla Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  RSA34587  Collinsia heterophylla N. C. Cooper 1944-6-4 1361 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA587867  Collinsia heterophylla Fred M. Roberts Jr. 1990-5-22 4635 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  CHSC116493  Comarostaphylis diversifolia subsp. diversifolia R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49607 Orange Santa Ana Mountains: Rocky ravine tributary to San Juan Canyon, along Ortega Highway(74) about 2 miles above San Juan Fire Station. Comment
  RSA751187  Conium maculatum A. C. Sanders, Fred M. Roberts 2008-6-17 35455 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  SEINET8584808 Image available Conium maculatum T. C. Arambula 1966-1 53 Orange Brea, Carbon Canyon Rd Comment
  RSA357138  Conium maculatum R. F. Thorne 1975-4-6 45575 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  UCR228812  Convolvulus arvensis Dick Newell, Don Millar 2011-7-19 206 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon Rd. at junction to Dripping Springs 312 Comment
  UCR97074  Convolvulus arvensis Scott D. White 1993-4-28 1281 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  RSA557  Convolvulus simulans J. T. Howell 1928-2-26 s.n. Orange Bee Canyon, Rancho Santa Ana. 305 Comment
  UCR85393  Convolvulus simulans H. Camp 1995-4-14 s.n. Orange Peninsular Range; Santa Ana Mtns., Caspers Park, 7 mi. east of San Juan Capistrano, west of Bell Creek 183 Comment
  RSA718958  Conyza bonariensis Fred M. Roberts, Robert L. Allen 2006-10-8 6422 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  UCR193278  Conyza bonariensis A. C. Sanders, Fred M. Roberts 2008-6-17 35512 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  POM201740  Conyza bonariensis L. M. Booth 1932-6-9 1181 Orange Newport Bay Comment
  RSA348137  Conyza canadensis I. L. Wiggins 1965-10-24 20286 Orange At corner of Yorba Linda and State College Blvds., Fullerton. Comment
  RSA703881  Conyza canadensis Fred M. Roberts, David E. Bramlet 2004-11-5 6078 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Cristianitos Cyn., 0.14 km NNW Sycamore Gate and 0.10 km W Cristianitos Rd. 110 Comment
  IRVC24224  Conyza coulteri Fred M. Roberts 1985-10-1 2292 Orange Silverado Canyon, Silverado Canyon Road, 1.0km by road E junction Santiago Canyon Road. Santa Ana Mountains 320 Comment
  RSA488131  Conyza coulteri Fred M. Roberts 1985-8-19 2127 Orange Crystal Cove State Park: Pelican Point, border of old Stable site, 0.1km from ocean 20 Comment
  RSA731654  Conyza floribunda Fred M. Roberts 2007-10-29 6625 Orange Laguna Beach: Temple Hill, Nyes Place, ca. 0.2 km S Moulton Meadows Park. 232 Comment
  UCR192729  Conyza floribunda A. C. Sanders, Fred M. Roberts 2008-5-6 35210 B Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 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
  UC537013  Cordylanthus maritimus subsp. maritimus Lawrence M. Booth 1932-7-19 1273 Orange Bolsas Marsh Comment
  UCR242956  Cordylanthus maritimus var. maritimus D. E. Bramlet 1983-7-3 s.n. Orange South Coast, Newport Back Bay, c. 200 yds. from the junction of San Joaquin Hills Rd. and Back Bay Dr., 5 ft. from edge of Back Bay Dr. 1 Comment
  RSA0045606  Cordylanthus pilosus R. H. McArthur 1934-5-19 s.n. Orange Live oak Canyon. Comment
  CAS-BOT-BC287841  Coreopsis californica Miss. Helen D. Geis 1904-4-1 732 Orange Silverado Canon, Santa Ana Mts Comment
  HSC5417  Corethrogyne filaginifolia J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  RSA752895  Corethrogyne filaginifolia A. C. Sanders, Fred M. Roberts 2008-8-7 35970 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  RSA292463  Corethrogyne filaginifolia var. virgata James Henrickson 1972-10-21 8066 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. Irrigated grassland eventually to be used for large Newport Beach Business Center. 46 Comment
  UC1719426  Coronopus didymus D. Atwood 1993-3-26 17688 Orange Corona Del Mar State Park along Newport Coast Drive 0 Comment
  SD133232  Cortaderia selloana A. C. Sanders 1990-10-6 10196 Orange Newport Bay; North Star County Beach area on the southwest end of bay; ca 2 km inland of highway 1; on sandy flats and bluffs 0 Comment
  SEINET10541091  Cotoneaster pannosus Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7125 Orange In vicinity of Laguna Beach. 152 Comment
  JEPS37132  Cotula australis L. M. Booth 1932-5-24 1094 Orange Newport Bay Comment
  SD94964  Cotula australis J. Harry Lehr 1976-2-14 910 Orange Santa Anna Street north of State College Blvd., Anaheim. Comment
  RSA696059  Cotyledon lanceolata Keith E. Hoffmaster 1928-5-29 s.n. Orange San Onofre. CP5. Comment
Read comments
Dec 20 2019
  UCR103791  Crassula connata Scott D. White 1997-2-19 4700 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  CAS-BOT-BC427773  Crassula connata Ira L. Wiggins 1966-3-5 20498 Orange Along Highway S-18, about 4.5 mi. E. of Laguna Beach. Comment
  UC484241  Crassula connata var. erectoides C. B. Wolf 1931-3-6 Orange 1/2 mi. above Trabuco; w. slope Santa Ana Mts., Trabuco Canyon 457 Comment
  RSA0009408  Cressa truxillensis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA5822  Cressa truxillensis C. B. Wolf 1932-6-28 3800 Orange 25 ft. west and 600 ft. north of SE corner of SE 1/4 sect 29. 9 Comment
  UCR130343  Crotalaria capensis A. C. Sanders, Mark A. Elvin 2003-10-12 27318 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  LA204938  Croton californicus J. A. Ewan; 1932-7-28 7704 Orange Corona del Mar Comment
  RSA697576  Croton californicus Kenneth Beard s.n. Orange East of S. A. River on Edinger Road Comment
  UC17567  Croton californicus C. W. Hamlin 1820-1 61 Orange Buena Park Comment
  RSA0011251  Croton californicus Fred M. Roberts Jr. 1989-5-9 4340 Orange Santa Ana Mts: Gypsum Canyon, west fork, 5.6 km WNW Sierra Peak, c.a. 1 km S Highway 91. 146 Comment
  RSA734902  Croton setiger A. C. Sanders 2008-5-28 35439 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  UCR131872  Croton setiger J. Mallory, V. McCoy 1995-7-3 6454- 71 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  UCSB48014  Croton setiger Roberts, Fred 1980-9-14 Orange Santa Ana Mtns.; San Juan Canyon, 0.6 km. SW Lower San Juan Picnic Ground; 1.9 km. WNW Sitton Peak 410 Comment
  RSA648656  Crypsis schoenoides R. E. Riefner 2000-8-23 20 -731 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  RSA743375  Cryptantha clevelandii Fred M. Roberts 2008-4-9 6855 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UCR193047  Cryptantha clevelandii A. C. Sanders, Mitch Provance 2008-5-20 35409 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR263635  Cryptantha clevelandii var. clevelandii Ed Kentner 2012-4-24 130 Orange Peninsular Range: Santa Ana Mountains, Lomas De Santiago, El Toro property 200 Comment
  UCSB52918  Cryptantha clevelandii var. florosa Roberts, Jr., Fred 1983-3-10 Orange Dana Point Headlands: south of Scenic Dr., 0.3 km. W Dana Point Harbor; 0.8 km. S Richard Henry Dana School 60 Comment
  IRVC255  Cryptantha intermedia C. Hinesly Orange Trabuco Canyon Santa Ana Mountains Comment
  IRVC256  Cryptantha intermedia S. Gilbert 1965-4-8 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA0013857  Cryptantha intermedia Fred M. Roberts 2012-5-10 7563 Orange San Joaquin Hills: Buck Gully, S Fork, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive. 183 Comment
  RSA542657  Cryptantha intermedia Fred M. Roberts 1988-4-10 3902 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  RSA678721  Cryptantha intermedia Fred M. Roberts, Robert Allen, Carol Roberts 2003-5-11 s.n. Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  RSA731998  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-4-22 35057 Orange Penisular Range; Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon. c. 3.5 mi. WSW of Silverado 493 Comment
  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
  UCSB48052  Cryptantha intermedia Fritzke, Sue; Roberts, Jr., Fred 1982-4-3 Orange Dana Point Headlands: south of Dana Strand Road., 0.5 km W Dana Point Harbor; 0.8 km SSW Richard Henry Dana School 80 Comment
  RSA0013970  Cryptantha microstachys Fred M. Roberts 2008-4-8 7169 Orange Lomas de Santiago; Loma Ridge, Upper Dripping Springs Cyn,. 1.0km NE Bee Peak, Irvine Ranch Conservancy. 458 Comment
  RSA681022  Cryptantha microstachys Fred M. Roberts, D. E. Bramlet 2003-3-13 5584 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 207 Comment
  RSA682916  Cryptantha microstachys Scott D. White, Amanda Duchardt 2003-5-1 9167 Orange Slopes above west side of Trampas Canyon. 107 Comment
  UCR77711  Cryptantha microstachys Steve Boyd, Orlando Mistretta 1991-5-9 6191 Orange Santa Ana Mtns, Crest of range at Oak Flat, SE of Sierra Peak, just west of Riverside County line. 854 Comment
  RSA0029035  Cryptantha microstachys Keith E. Hoffmaster 1934-4-22 349 Orange Santiago Canyon near Silverado. Comment
  RSA1698  Cryptantha muricata C. B. Wolf 1931-3-6 1839 Orange Trabuco Canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  IRVC15122  Cryptantha muricata var. muricata A. S. Boughey 1968-4-23 204 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  RSA703679  Cucurbita foetidissima Fred M. Roberts, D. E. Bramlet 2004-11-5 6130 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.92 km SSW Gato Gate and 0.06 km W Cristianitos Road. 81 Comment
  UCR140973  Cupressus arizonica June Latting 1973-6-30 s.n. Orange Santa Ana Mountains, Beeks Place, south of Oak Flat 854 Comment
Read comments
Mar 28 2014
  UC1134210  Cupressus forbesii A. Lewis 1934-4-1 382 Orange 2 1/2 mi w Sierra Peak; Corona Quadrangle Comment
  RSA988  Cupressus forbesii J. T. Howell 1927-8-10 221 Orange Claymine Canon, near Sierra Peak. 365 Comment
  SEINET10531085  Cupressus forbesii Carl B. Wolf 1935-1-2 Wolf 2320 Orange Santa Ana Mts. Slopes of Sierra Peak W of Claymine Canyon along road to peak. Upper Sonoran:- Adenostoma, Cypress. Open N.W. slope, reddish sandstone. 670 Comment
  NY16670  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6279 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET905825  Cuscuta R. J. Barr 1967-1 67 -176 Orange East of el Toro, Santa Ana Mountains. 182 Comment
  RSA409761  Cuscuta californica George Price 1967-5-14 s.n. Orange Silverado Canyon Comment
  RSA797668  Cuscuta californica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49772 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UCR230836  Cuscuta californica Dick Newell, Don Millar, Shara Harris 2011-6-21 185 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 207 Comment
  RSA542644  Cuscuta californica Fred M. Roberts, Kathy Keane 1988-5-25 3980 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Marker. 85 Comment
  RSA201912  Cuscuta salina L. M. Booth 1933-10 s.n. Orange Newport Comment
  RSA759535  Cuscuta subinclusa Robt. Allen 2006-12-13 s.n. Orange Trabuco Canyon. About 2 mi. up from Live Oak Road, SW of Trabuco Truck Trail, in creekbed near base of north-facing hillside 395 Comment
  UCR224166  Cylindropuntia prolifera Fred M. Roberts, Carol A. Roberts 2008-9-28 7117 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west northwest of Marine Institute, Dana Point Harbor 65 Comment
  CDA22562  Cynodon dactylon J. B. Anderson 1966-4-18 6000 Orange Mac Arthur Boulevard near Red Hill Road. 0 Comment
  POM202596  Cynodon dactylon L. M. Booth 1932-5-25 1115 Orange Balboa Island [Newport Bay]. Comment
  UCR193829  Cynosurus echinatus A. C. Sanders, Fred M. Roberts 2008-7-16 35847 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in canyon below Dripping Spring, c. 7.5 mi. ESE of Tustin 350 Comment
  RSA798098  Cyperus eragrostis Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49572 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR193032  Cyperus eragrostis A. C. Sanders, Mitch Provance 2008-5-20 35400 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  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
  CAS-BOT-BC114245  Cyperus laevigatus Carl B. Wolf 1932-7-2 3812 Orange Carbon Canyon, 1/8 mi below La Vida Springs. 213 Comment
  UC1116257  Cyperus laevigatus F. R. Fosberg 1931-6-19 746 Orange Puente Hills, Carbon Canyon Comment
  RSA797602  Cyperus niger var. capitatus Robert F. Thorne 1977-11-21 49999 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UC2047828  Cyperus niger var. capitatus Robert F. Thorne 1977-11-21 49999 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. Comment
  RSA92095  Cyperus niger var. capitatus F. W. Peirson 1924-10-19 5231 Orange Wintersberg Comment
  RSA710407  Cyperus odoratus Fred M. Roberts 2005-10-3 6295 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA713567  Cyperus odoratus R. E. Riefner Jr. 2005-7-9 5 -551 Orange City of Huntington Beach, Huntington Central Park, Goldenwest St. near Slater Ave. 2 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
  CAS-BOT-BC227846  Cyrtomium falcatum R. E. Riefner, Jr. 2011-7-1 11 -83 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1 mi from Poppy Avenue 1 Comment
  SD234213  Cyrtomium falcatum R. E. Riefner Jr. 2006-9-5 06 417 Orange Southern Coast Corona del Mar, Ocean Blvd., near Iris Ave. (Laguna BeaCH 7.5'q). 10 Comment
  SD260851  Cyrtomium falcatum R. E. Jr. Riefner 2012-1-16 12 5 Orange City of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road. 0 Comment
  UC2031956  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12 -5 Orange City of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road Comment
  UC729651  Dactylis glomerata Carl B. Wolf 1932-6-13 3715 Orange Fullerton; Rose Drive 53 Comment
  RSA431670  Datisca glomerata F. R. Fosberg 1931-6-21 5151 Orange Silverado Canyon. Santa Anita Mts. Comment
  POM201713  Datura stramonium L. M. Booth 1932-7-30 1345 Orange Santa Ana River Comment
  RSA542375  Datura stramonium Fred M. Roberts Jr., Gordon Marsh 1987-8-31 3600 Orange Santa Ana River: adjacent to Santa Ana, 0.5 km NE 17th St. bridge. 27 Comment
  RSA421914  Datura wrightii N. C. Cooper 1942-11-9 886 Orange Balboa. Comment
  RSA650635  Datura wrightii Daniel Truong 1991-5-5 1 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. 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
  SD220032  Daucus pusillus Mark A. Elvin 2004-5-2 3409 Orange Irvine; San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  UCD127408  Daucus pusillus Lawrence M. Booth 1932-5-12 1033 Orange Newport Bay. Comment
  UCR154345  Daucus pusillus Mark A. Elvin 2004-5-2 3409 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA761936  Daucus pusillus Robt. Allen 2005-4-30 12497 Orange Caspers Wilderness Park, East Ridge Trail. 175 Comment
  UCSC001457  Daucus pusillus Peter Kamb 1948-6-19 1086 Orange Holy Jim Canyon, Santa Ana Mountains 610 Comment
  CAS-BOT-BC299323  Deinandra fasciculata C. B. Wolf 1932-7-2 3811 Orange Valencia Ave., Olinda opposite the Olinda Pilgrim Church 152 Comment
  CHSC26109  Deinandra fasciculata Roger Shelby 1970-8-22 Orange Ca. 4 mi. N. of Huntington Beach, 1 1/2 mi. So. of Warner Ave. off Pacific Coast Hwy. in Bolsa Bay area. 0 Comment
  JEPS24424  Deinandra fasciculata Peter M. Ray 1949-5-22 1410 Orange s of San Clemente; San Clemente State Park 15 Comment
  JEPS38341  Deinandra fasciculata Lawrence M. Booth 1932-5-12 1038 Orange Newport Bay Comment
  UC536895  Deinandra fasciculata Lawrence M. Booth 1932-5-12 1038 Orange Newport Bay Comment
  RSA94100  Deinandra fasciculata F. W. Peirson 1924-8-29 5064 Orange Santa Ana Comment
  CAS-BOT-BC383061  Deinandra paniculata R. E. Riefner, Jr. 2014-7-10 14 -236 Orange City of Laguna Beach, Laguna Canyon, Laguna Coast Wilderness Park, Laurel Canyon Trail near Post-Marker C, SW ca. 0.1 mi from the intersection of Laguna Canyon Rd. and El Toro Rd. 75 Comment
  CAS-BOT-BC412802  Deinandra paniculata R. E. Riefner, Jr. 2013-8-16 13 -189 Orange City of Dana Point, canyon W side of Dana Hills High School, N of Stonehill Drive, E of Cortes Drive 86 Comment
  RSA703199  Deinandra paniculata R. E. Riefner Jr. 2004-7-6 04 -302 Orange Upper Chiquita Canyon, vicinity of Oso Pkwy. and SR-241. 224 Comment
  UCR267218  Deinandra paniculata Fred M. Roberts 2014-7-25 7893 Orange South Coastal Plain, SAN JOAQUIN HILLS: Laguna Canyon, just west of Laguna Lake 1, 4.8 km ENE Signal Hill, Laguna Coast Wilderness Park 116 Comment
  RSA649081  Delphinium Karl Price 1988-5-7 35 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA298  Delphinium cardinale J. T. Howell 1927-7-26 s.n. Orange Claymine Canyon near Sierra Peak. 244 Comment
  UCR261685  Delphinium parryi Dick Newell, Judy Booth 2014-5-25 375 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 1.8 miles due north of Modjeska Peak 893 Comment
  RSA679218  Delphinium parryi subsp. parryi Fred M. Roberts 2003-6-17 5915 Orange Just NE of Falcon roup Camp, 2.1km ESWE Los Pinos Peak just west of main road. 1009 Comment
  UC1178492  Delphinium parryi subsp. parryi Peter Kamb 1948-6-19 1098 Orange Holy Jim Canyon Santa Ana Mts. 609 Comment
  CAS-BOT-BC116420  Delphinium patens subsp. hepaticoideum C. B. Wolf 1931-3-6 1856 Orange 1/2 mile below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  RSA662563  Dendromecon rigida P. Shirokawa 1998-5-7 21 Orange Cleveland National Forest- Trabuco Ranger District, 3.2 miles from Ortega Highway (State Highway 74) on North Main Divide Road 991 Comment
  RSA663162  Dendromecon rigida R. E. Riefner 2000-6-26 20 -578 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N and W of Black Star Canyon Road at powerline tower. 631 Comment
  VVC357  Dicentra chrysantha P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  RSA681019  Dichelostemma capitatum subsp. capitatum Fred M. Roberts, David E. Bramlet 2003-3-7 5567 Orange Donna O Neill Land Conservancy; West slopes of Christianitos Canyon, Middle Ridge Trail, 0.1km NW Gato Gate. 123 Comment
  RSA590942  Dichelostemma capitatum subsp. capitatum Fred M. Roberts Jr. 1991-5-2 4782 Orange San Joaquin Hills: Laguna Canyon, Laguna Laurel, just W of Laguna Canyon Road, ca 2 km N jct El Toro Road, 4.5 km E Signal Peak. 110 Comment
  UCR193832  Dichondra micrantha A. C. Sanders 2008-7-3 35713 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  UCSB52889  Digitaria sanguinalis Roberts, Fred 1984-10-18 Orange San Juan Cyn, Santa Ana Mtns; 2.6 km ENE of San Juan Guard Stn, 4.0 km WNW Sitton Peak 345 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
  SD225118  Diplacus aurantiacus B. Pitzer 1996-4-30 2801 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (Pacific Coast Hwy). 14 Comment
  SEINET13682959  Diplacus aurantiacus R. Nelson, Baumann, Kondratieff, Sargent 1988-1-12 5117 Orange Cleveland NF, San Juan Creek at Lower San Juan Campground. 366 Comment
  RSA0045521  Diplacus aurantiacus Jeanne Paxton 1934-4-21 s.n. Orange Modjeska Canyon. PR8. Comment
  CAS-BOT-BC151045  Diplacus brevipes F. W. Pennell; Carl Epling 1940-4-21 25148 Orange Route 74, 5 mi. E. of San Luis Capistrano 121 Comment
  CAS-BOT-BC152263  Diplacus clevelandii E. K. Balls 1958-6-27 23279 Orange Road to Santiago Peak from Silverado Canyon, 3.8 mi. from gate. 975 Comment
  SD48448  Diplacus clevelandii E. K. Balls, P. C. Everett 1957-11-25 22845 Orange 4.7 mi. e. of Silverado Comment
  CAS-BOT-BC152060  Diplacus longiflorus H. E. McMinn 1949-7-9 5598 Orange Ca. 2 miles east of San Juan Capistrano, San Juan Pass, Highway 74 Comment
  SD72857  Diplacus longiflorus F. R. Fosberg 1931-6-19 S 5128 Orange Carbon Canyon, Puente Hills, canyon wall Comment
  SD255235  Diplacus longiflorus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49795 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA0054842  Diplacus puniceus Thelma Shipe 1932-4-22 s.n. Orange Santiago Canyon. Comment
  CAS-BOT-BC43551  Diplotaxis muralis Peter H. Raven 1962-3-27 16992 Orange Site of Rancho Santa Ana, near Anaheim. 182 Comment
  CDA3684  Diplotaxis muralis Margaret Bellue, E. L. Paddock, Andreas 1943-8-3 Orange Santa Ana Botanical Garden, Fullerton. 0 Comment
  RSA16979  Diplotaxis muralis P. C. Everett 1936-3-20 7762 Orange Rancho Santa Ana, Santa Ana canyon from Botanic Garden, W of Adm bldg 198 Comment
  CAS-BOT-BC43561  Diplotaxis tenuifolia Helen D. Geis 1902-1-1 544 Orange Santa Ana. Comment
  CDA3678  Diplotaxis tenuifolia Margaret Bellue, Tubbs, Johnson Oct 1944 Orange Bataxia Street Crossing, Santa Fe. 0 Comment
  POM123  Diplotaxis tenuifolia I. M. Johnston 1918-5-4 1927 Orange Santa Ana, at roadside. Comment
  RSA678747  Distichlis littoralis Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1102 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  RSA685922  Distichlis spicata Fred M. Roberts 2003-3-27 5632 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, western slopes of Chistianitos Canyon, 0.25km N Sycamore Gate 0.13km W Cristianitos Road 116 Comment
  RSA743471  Distichlis spicata Fred M. Roberts 2008-10-9 7124 Orange Dana Point: Dana Point Headlands, CNLM Preserve, at base of cliff adjacent to Dana Strands Beach, 0.8km WNW Marine Institute (Dana Point Harbor). 3 Comment
  SEINET182346 Image available Distichlis spicata Lawrence M. Booth 1932-5-25 1116 Orange Balboa Ilsand Newport Bay Comment
  UCR193038  Distichlis spicata A. C. Sanders, Fred M. Roberts 2008-6-17 35495 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  RSA0019618  Dodecatheon clevelandii Scott D. White 2003-3-21 8809 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA461342  Dodecatheon clevelandii M. B. Dunkle 1935-3-3 4344 Orange San Juan Canyon. 457 Comment
  UCSB14911  Dodecatheon clevelandii Breedlove, Dennis 1962-3-9 Orange 4.4 miles east of San Juan Capistrano on State 74 112 Comment
  RSA678732  Dodecatheon clevelandii subsp. clevelandii Fred M. Roberts, Laura Cohen 2000-3-24 5269 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  RSA732165  Drymocallis glandulosa A. C. Sanders, Fred M. Roberts 2008-4-8 34762 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UCR250855  Drymocallis glandulosa Dick Newell, Don Millar 2014-3-11 358 Orange South Coast, San Joaquin Hills, Laguna Canyon, Upper Laurel Canyon Trail, 0.24 mi. SE of 73 toll road over-crossing 207 Comment
  RSA617694  Dryopteris arguta Scott D. White 1996-12-20 4631 Orange Santa Ana Mountains: Above Modjeska Canyon. 427 Comment
  UCR174212  Dryopteris arguta A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33039 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR175515  Dryopteris arguta Mark A. Elvin, A. C. Sanders 2005-9-2 4497 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 Comment
  UCSB48105  Dryopteris arguta Fritzke, S.; Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: San Juan Canyon, 2.4km ENE San Juan Guard Station; 0.3km WSW Bench Mark 1100. 88 Comment
  UC1015141  Dudleya Reid Moran 1949-5-28 3257 Orange Alsio Canyon Laguna Beach Comment
  UCSB52867  Dudleya blochmaniae subsp. blochmaniae Roberts, Fred 1983-4-24 Orange Dana Point Headlands: south of Pacific Coast Hwy.; 0.5 km. NW Dana Point Harbor; 0.5 km. SSW Richard Henery Dana Sch. 85 Comment
  CAS-BOT-BC427990  Dudleya caespitosa John Thomas Howell 1927-6-9 2472 Orange North side Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC109689  Dudleya cymosa subsp. ovatifolia K. Nakai 1979-10-30 542 Orange Santa Ana Mountains, Santiago Canyon, end of Modjeska Road. 487 Comment
  RSA644961  Dudleya cymosa subsp. ovatifolia R. E. Riefner, Adrian Wolf 2000-1-24 20 -115 Orange NCCP North Ranch Policy Plan Area: Fremont Canyon: N of Santiago Creek & immediately N. of major stream fork. 305 Comment
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May 26 2016
  RSA423526  Dudleya edulis M. B. Dunkle 1923-06 5374 Orange San Juan Canyon. Comment
  RSA542641  Dudleya edulis Jeni L. Roberts, K. Keane 1988-5-25 3981 Orange Rancho Mission Viejo; Lower Canada Chiquita, 2.5 km SSE Medium Rancho Survey Mark; 105 Comment
  CAS-BOT-BC411403  Dudleya lanceolata L. R. Abrams 1917-6-23 6556 Orange Balboa Comment
  CAS-BOT-BC411411  Dudleya lanceolata Lawrence M. Booth 1931-1-1 1188 Orange Bluff slopes of Newport Bay Comment
  RSA591738  Dudleya lanceolata Roos 1965-6-16 s.n. Orange Dana Point Comment
  RSA699757  Dudleya lanceolata Fred M. Roberts, D. E. Bramlet 2003-6-6 5885 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 1.41km SSW Gato Gate and 0.35km NNW of SDG&E substation. 117 Comment
  UC420678  Dudleya lanceolata A. R. Davis Orange mtns above Claremont Comment
  RSA732271  Dudleya multicaulis A. C. Sanders 2008-4-29 35129 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  RSA747594  Dudleya multicaulis Fred M. Roberts 2000-5-19 5327 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  RSA751169  Dudleya multicaulis D. E. Bramlet 2008-5-20 4280 Orange N Loma Ridge, 305m west of Hwy 241, 976m south of Santiago Cyn Rd. & 61m N of the access road. 355 Comment
  POM93  Dudleya saxosa subsp. aloides P. A. Munz 1919-5-5 2796 Orange San Gorgonio Pass. Comment
  IRVC22787  Dudleya stolonifera Fred M. Roberts 1985-5-16 1815 Orange mouth of Laurel Canyon, 4.0km SE Signal Peak, San Joaquin Hills 85 Comment
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Mar 3 2015
  RSA423513  Dudleya stolonifera Albert J. Perkins 1912-8-22 s.n. Orange 3 miles SW of Laguna Beach. Aliso canyon. Comment
  SD130042  Dudleya stolonifera Reid Moran 1977-6-13 24238 Orange North-facing cliff near mouth of Aliso Canyon. 10 Comment
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Nov 27 2014
  SEINET3089344  Dudleya stolonifera Reid Moran 1977-1 Orange Comment
  CAS-BOT-BC109743  Dudleya stolonifera R. V. Moran 1949-7-2 3286 Orange 1.7 mile below Toro Road Junction, -1.5 mile above canyon mouth. Laguna Canyon. 243 Comment
  CAS-BOT-BC109767  Dudleya viscida Carl B. Wolf 1936-6-17 7948 Orange Santa Ana Mountains, along Ortega Highway, 0.6 mile below San Juan Hot Springs. 182 Comment
  UC115218  Dudleya viscida J. C. Nevin Oct 1881 Orange San Juan Comment
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Sep 1 2006
  UCSB48031  Dudleya viscida Roberts, Fred 1980-7-7 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, 2.3 km. ENE San Juan Guard Station; 0.4 km. W of Bench Mark 1100 315 Comment
  CAS-BOT-BC197179  Echinochloa crus-galli John Thomas Howell 1927-7-18 2793 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  SEINET8073925 Image available Echinochloa crus-galli R. E. Riefner Jr. 2005-1 05 -552 Orange City of Huntington Beach, Huntington Central Park, Goldenwest St. near Slater Ave. USGS Quad: Seal Beach. 2 Comment
  UCR154271  Echinochloa crus-galli Mark A. Elvin 2004-5-2 3426 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA532554  Echinodorus berteroi David E. Bramlet 1990-10-17 2063 -1 Orange Newport Beach: Delhi Channel at the intersection of Irvine Ave. and Mesa Drive just west of Newport Beach Golf Course. 6 Comment
  UCR67010  Echium candicans A. C. Sanders 1990-10-6 10183 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  RSA715696  Eclipta prostrata Fred M. Roberts, Chris M. Barnhill 2005-9-27 6276 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  UCSB47620  Ehrendorferia chrysantha Roberts, Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon, Rte. 74, 0.2km S Lower San Juan Picnic Ground 393 Comment
  RSA689384  Ehrharta calycina Scott D. White, Michael Honer 2003-6-12 9542 Orange Rancho Mission Viejo. Upper end of Trampas Canyon. 152 Comment
  SEINET10753656  Ehrharta calycina Scott D. White, M. Honer 2003-6-12 White 9542 Orange Southwestern Santa Ana Mts Foothills: Rancho Mission Viejo. Upper end of Trampas Canyon. (San Clemente.) 152 Comment
  RSA731651  Ehrharta erecta Fred M. Roberts 2007-10-29 6628 Orange Laguna Beach: Temple Hill, Nyes Place, c.a. 0.2 km S Moulton Meadows Park. 232 Comment
  SEINET9258835  Ehrharta erecta R. E. Riefner Jr. 2012-1 12 -15 Orange City of Dana Point, Dana Point Harbor, civinity of Puerto pl. and Dana Point Harbor Drive 2 Comment
  RSA592059  Elatine brachysperma R. E. Riefner 1994-4-15 94 -320 Orange Dana Hills NW of Cooks Reservoir. Comment
  RSA799624  Eleocharis acicularis Justin M. Wood 2011-4-12 3664 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA697522  Eleocharis acicularis Elisabeth Norland 1929-4-11 s.n. Orange Cypress. Comment
  JEPS64122  Eleocharis macrostachya L. M. Booth 1932-5-15 1202 Orange Costa Mesa Comment
  UCR191469  Eleocharis macrostachya A. C. Sanders, Fred M. Roberts 2008-4-8 34734 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA791461  Eleocharis montana Keith E. Hoffmaster 1927-10-11 149 Orange Santa Ana. Comment
  RSA603303  Eleocharis montevidensis Scott D. White, B. Leatherman 1997-1-12 5332 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca. 2 to 4 miles E of I-15 / Highway 74 junction. 46 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
  SEINET10897340  Elymus condensatus Frank W. Gould 1944-6-25 Gould 2365 Orange Santa Ana Canyon, on railroad siding about 5 miles west of former site of Santa Ana Botanical Garden. Comment
  POM265759  Elymus glaucus J. C. Roos 1937-5-10 2076 Orange San Juan Capistrano. Comment
  UCR177693  Elymus glaucus Fred M. Roberts 2003-5-1 5687 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km west of Cristianitos Rd. 96 Comment
  CLARK-A1528-4606  Elymus glaucus subsp. glaucus John C. Roos 1937-5-10 2336 Orange San Juan Capistrano Comment
  JEPS71193  Elymus glaucus subsp. glaucus L. M. Booth 1932-6-7 1154 Orange Newport Bay Comment
  SEINET10841966  Elymus stebbinsii subsp. stebbinsii LeRoy R. Abrams Abrams 1822 Orange Santiago Pk. 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
  CAS-BOT-BC131229  Encelia californica John Thomas Howell 1927-6-1 2406 Orange Southern Puente Hills in the Santa Ana [Canon] Canyon 152 Comment
  HSC25235  Encelia californica Richard Spjut 1972-2-22 2227 Orange W of the Cleveland National Forest in the Santa Anna Mtns. along Hwy. 74 152 Comment
  HSC5474  Encelia californica J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  POM356656  Encelia californica M. B. Dunkle 1933-4-9 32888 Orange Dana Point. 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
  SJSU10608  Encelia californica G. B. Youngberg 1956-3-27 182 Orange Irvine Park c. 8 mi E of Orange 259 Comment
  UC54173  Encelia californica Jos. Burtt Davy 1902-4-4 Orange Orange Comment
  UCR267184  Encelia californica Fred M. Roberts 2010-3-12 7177 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  RSA0037061  Encelia californica Darren Day, Hal Willis 1984-4-28 009 Orange Growing at the side of Laguna Canyon Rd. exactly 2.5 mi outside of the city limits, heading north. Comment
  UCR220969  Epilobium canum Dick Newell, Don Millar 2010-8-3 31 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, One Cactus Trail, 1/4 mile west of Limestone Ridge Rd., 0.88 mi. west of Santiago Canyon Rd. 409 Comment
  RSA542492  Epilobium canum subsp. latifolium Fred M. Roberts, Richard E. Riefner 1988-7-19 4119 Orange Santa Ana Mountains: Modjeska Peak, west slope, 1.1 km SW summit 1524 Comment
  UCR237923  Epilobium ciliatum Dick Newell, Judy Booth 2012-6-24 276 A Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 1.9 mi. NE of Maple Springs gate 817 Comment
  UCSB48194  Epilobium ciliatum Roberts, Fred 1981-6-26 Orange Santa Ana Mountains, East fork Viejo Cyn., 0.6 km N Calif. Rte. 74; 2.7km E San Juan Guard Station 326 Comment
  RSA72173  Epilobium ciliatum subsp. ciliatum F. W. Peirson 1924-5-31 4654 Orange Laguna Canyon, near Laguna Beach. 107 Comment
  SD245160  Equisetum arvense R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49566 Orange Santa Ana Mountains: San Joan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  IRVC1250  Equisetum hyemale subsp. affine L. Burns 1965-4-21 Orange Balboa Peninsula. Newport Beach Comment
  UCR174026  Equisetum laevigatum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33050 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR195014  Equisetum laevigatum A. C. Sanders, Fred M. Roberts 2008-8-7 35987 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  RSA450868  Equisetum laevigatum Gordon Marsh 1977-11-21 s.n. Orange Santa Ana Mountains: S side of Ortega Hwy, 1.2 mi E of San Juan Guard Station, road marker # 107. Comment
  RSA798092  Equisetum telmateia var. braunii R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49599 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  UCR192732  Eragrostis A. C. Sanders, Fred M. Roberts 2008-5-6 35223 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  RSA170439  Eremocarpus setiger J. D. Olmsted 1959-8-26 831 Orange 100 yards northeast of center of Hidden Ranch by pump along Black Star Canyon Road. N end of Santa Ana Mountains 671 Comment
  UC908507  Eriastrum sapphirinum John Thomas Howell 1927-6-9 2471 Orange Santa Ana Canyon Rancho Santa Ana 213 Comment
  UCR192738  Eriastrum sapphirinum A. C. Sanders, Fred M. Roberts 2008-5-6 35222 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  UCR241914  Eriastrum sapphirinum Fred M. Roberts 2012-5-10 7564 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  UCR73131  Eriastrum sapphirinum Scott D. White 1992-9-23 854 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  RSA0122943  Eriastrum sapphirinum subsp. dasyanthum Fred M. Roberts, David Bramlet 2003-6-6 5911 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. 149 Comment
  JEPS30707  Ericameria palmeri var. pachylepis Peter H. Raven 1961-10-15 16854 Orange just w of State Highway 55 (Santa Ana Canyon Road); Peralta Hills 137 Comment
  RSA54171  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  UC1118798  Ericameria parishii var. parishii A. Lewis 1934-5-1 414 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quad., Trabuco Canyon 1341 Comment
  IRVC20221  Ericameria pinifolia Fred M. Roberts 1982-10-14 829 Orange Temple Hill, 1.1km NNW Top of the World School, Laguna Beach 259 Comment
  CAS-BOT-BC33457  Erigeron foliosus var. foliosus LeRoy Abrams 1901-6-16 1801 Orange Trabucco Canyon Comment
  POM6358  Erigeron foliosus var. stenophyllus P. A. Munz 1919-5-3 2656 Orange Santa Ana River Canyon. Comment
  RSA696818  Erigeron philadelphicus Anonymous s.n. Orange Moist Shade-Orange Co. Park. Comment
  RSA455040  Eriodictyon crassifolium Theodore Payne 1909-01 2338 Orange Santa Ana Mt. Comment
  SJSU8878  Eriodictyon crassifolium H. E. McMinn 1935-6-22 3929 Orange Ridge above Clay Mine Canyon, N end of Santa Ana Mts 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
  RSA0041967  Eriodictyon crassifolium Paul Shirokawa 1998-5-7 23 Orange Cleveland National Forest: Trabuco Ranger District, 3.1 miles from Ortega Highway (State Highway 74) on Main Divide Road. 990 Comment
  RSA0045584  Eriodictyon crassifolium Ken Eastman 1932-5-8 s.n. Orange Saddle Back Comment
  RSA0056305  Eriodictyon crassifolium James R. Shevock 1314 Orange Near Irvine Lake. 304 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
  UCD119319  Eriodictyon trichocalyx Raymond A. Evans 1949-4-28 s.n. Orange Mouth of Santa Ana Canyon, near Orange. Comment
  UCR261706  Eriogonum elongatum Dick Newell, Don Millar 2014-9-14 385 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Limestone Canyon Rd., 100 yards north of Bolero Cyn. Rd./Loma Ridge Rd. 393 Comment
  UCR45132  Eriogonum elongatum B. G. Pitzer, L. F. LaPre 1986-10-20 s.n. Orange Santa Ana Mtns, Summit of Hicks Canyon on a private road (continuation of Jeffrey Road), c. 2.4 mi. above the gun club 274 Comment
  OBI41036  Eriogonum fasciculatum Melissa Thorme 1983-11-23 14 Orange S bank of Newport Beach's back bay area Comment
  RSA698423  Eriogonum fasciculatum L. C. Hull 1934-4-8 s.n. Orange Laguna Hills. Comment
  UCR192994  Eriogonum fasciculatum subsp. polifolium A. C. Sanders, T. B. Salvato 2008-5-13 35382 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC249944  Eriogonum fasciculatum var. foliolosum John Thomas Howell 1927-7-24 2835 Orange Santa Ana Canyon 152 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-BC249947  Eriogonum fasciculatum var. foliolosum John Thomas Howell 1927-7-24 2836 Orange Near entrance to Claymine Canon [Canyon], 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
  UC1292577  Eriogonum fasciculatum var. foliolosum C. L. Hitchcock, C. V. Muhlick 1964-3-17 23062 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  RSA791469  Eriogonum fasciculatum var. foliolosum Keith E. Hoffmaster 1928-5-29 313 Orange San Onofre. CP5. Comment
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Nov 19 2013
  SBBG62090  Eriogonum gracile J. T. Howell 1927-7-16 2791 Orange N side of Santa Ana Cyn 152 Comment
  SEINET253385  Eriogonum gracile var. gracile L. M. Booth 1933-8-26 1386 Orange Dry hillside Newport Lagoon Comment
  RSA581664  Eriogonum gracile var. gracile Tony Bomkamp 1995-06 s.n. Orange Rancho Santa Margarita, ca. 1/8 mile west of Oso Parkway and 1/8 mile south of Canada Chiquita. Comment
  LA206950  Eriogonum nudum var. pauciflorum Carl Epling; 1933-8-24 5400 Orange Santa Ana Mountains, summit of Santiago Peak 1731 Comment
  RSA539352  Eriogonum nudum var. pauciflorum Fred M. Roberts, Richard E. Riefner 1988-7-9 4118 Orange Santa Ana Mountains: Upper Silverado Canyon, Maple Springs Truck Trail, 11.5 km above Silverado Gate, 1.1 km NNW Modjeska Peak. 1350 Comment
  UC718407  Eriogonum nudum var. pauciflorum Carl B. Wolf 1933-8-24 5400 Orange summit of Santiago Pk. Santa Ana Mts., Santiago Pk. 1731 Comment
  RSA528048  Eriogonum parvifolium A. C. Sanders 1990-10-6 10179 Orange Newport Bay, Westcliff Park area on the SW end of the bay, 1km inland of Hwy 1. 1 Comment
  UC205014  Eriogonum parvifolium F. M. Reed Aug. 1920 Orange 3 mi s Laguna Comment
  UCR207545  Eriogonum parvifolium O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  RSA420006  Eriogonum parvifolium subsp. paynei Albert J. Perkins 1923-6-28 s.n. Orange Laguna Beach Comment
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Jul 15 2013
  RSA783663  Eriogonum virgatum J. D. Olmsted 1959-8-26 832 Orange Black Star Creek: Near Hidden Ranch along Black Star Canyon Road in Black Star Canyon in roadside cliffs. 671 Comment
  UCD150983  Eriophyllum confertiflorum D. S. Park 2010-4-25 28 Orange Whiting Ranch Wilderness Park, large population along trail. 224 Comment
  UCR252207  Eriophyllum confertiflorum Amanda C. Swanson 2013-4-21 23 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  IRVC26745  Eriophyllum confertiflorum Mark A. Elvin 2004-6-18 3521 Orange UCI Arboretum Southern Coastal 15 Comment
  UC1294014  Eriophyllum confertiflorum var. confertiflorum E. K. Balls 1958-6-27 23286 Orange Santiago-Mojeska Saddle Santa Ana Mts., Santiago-Mojeska Saddle 1463 Comment
  UC536892  Eriophyllum confertiflorum var. confertiflorum Lawrence M. Booth 1932-5-12 1042 Orange Newport Bay Comment
  RSA391773  Erodium botrys E. R. Johnson 1935-3-1 6293 Orange 1 miles west of Atwood, south side of Railroad. 91 Comment
  UCSB52457  Erodium botrys Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point; hills; 1.0km N Dana Hills High School; 1.9km W Marco Forster Junior High School 30 Comment
  HSC8494  Erodium cicutarium J. W. Johnson 1961-3-29 Orange Newport Beach, along upper Newport Bay Comment
  RSA696383  Erodium cicutarium Keith E. Hoffmaster 1927-2-12 s.n. Orange Santa Ana. Comment
  RSA732084  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
  UCR230231  Erodium moschatum Dick Newell, Don Millar 2011-3-15 078 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 219 Comment
  RSA125659  Erodium moschatum R. Weatherby 1950-2-25 1031 Orange Near El Toro, east side of Orange County. Santa Ana Mts. 305 Comment
  RSA800022  Eryngium aristulatum var. parishii Justin M. Wood 2011-6-28 4301 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  RSA651367  Erysimum capitatum Bob Cochrane 1948-5-9 s.n. Orange Found in hills back of Yorba Linda. Comment
  RSA696171  Erysimum capitatum Keith E. Hoffmaster 1932-4-17 s.n. Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  JEPS51726  Eschscholzia californica Alice King June, 1908 Orange Santa Ana Comment
  RSA654263  Eschscholzia californica P. Shirokawa 1998-4-24 1 Orange Cleveland National Forest - Trabuco Ranger District, 2.35 miles from Ortega Highway (State Highway 74) on North Main Divide Road 960 Comment
  UCR267212  Eschscholzia californica Fred M. Roberts, Lee Ann Caranza 2009-4-7 7139 Orange South Coastal Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor 65 Comment
  OBI11817  Eschscholzia californica Carl B. Wolf 1935-5-19 6873 Orange Santa Ana Mts, Baker Cyn, W Ladd Truck Trl 305 Comment
  RSA722436  Eschscholzia californica Gray 1912-05 s.n. Orange El Modena. Comment
  RSA312  Eschscholzia californica var. peninsularis J. T. Howell 1927-6-22 194 Orange Botany Garden, Rancho Santa Ana. Comment
  UCR50903  Eucalyptus amplifolia Dave Goodward 1987-4-16 7 Orange Irvine Ranch, Boy Scout Camp in Peters Canyon, east of Tustin and c. 1 mi NE of the Irvine Blvd/Myford Road intersection 122 Comment
  UCR193326  Eucalyptus camaldulensis var. camaldulensis A. C. Sanders, T. B. Salvato 2008-5-13 35370 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR130355  Eucalyptus citriodora A. C. Sanders, Mark A. Elvin 2003-10-12 27312 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  RSA0012603  Eucalyptus globulus D. B. Boatman 1969-3-16 6903161 Orange 1/2 mile E crossroads Newport Blvd. and Skyline Dr. Tustin. 91 Comment
  UCR132571  Eucalyptus megacornuta Robert DeRuff 2001-4-16 527 Orange Southern Coast, Newport Back Bay, Shellmaker Island 1 Comment
  UCR162345  Eucalyptus utilis Robert DeRuff 2000-1 523 Orange Southern Coast, Newport Beach, Upper Newport Back Bay. Northerly side of upper Big Canyon c. half way between the beginning of the upper canyon and Jamboree Road 30 Comment
  RSA420830  Eucrypta chrysanthemifolia Geo. L. Moxley 1917-04 184 Orange Laguna Beach Comment
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Sep 22 2011
  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
  UCR281551  Eucrypta chrysanthemifolia Mitch Provance, Jeremiah George 2017-3-20 317- 125 Orange West Coyote Hills, Fullerton, west side of Gilbert Street on land previously occupied by oil fields. 138 Comment
  IRVC24273  Euphorbia albomarginata Fred M. Roberts, G. A. Marsh 1985-10-26 2527 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  CLARK-A1528-2702  Euphorbia misera John C. Roos 1937-9-1 2548 Orange South Laguna Comment
  LA204855  Euphorbia misera B. R. Lower; 1954-4-26 sn Orange Dana Point Comment
  RSA311745  Euphorbia misera G. L. Webster 1966-12-11 4779 Orange S- facing slopes at top of bluffs, Dana Point Comment
  SD126575  Euphorbia misera Virginia S. Moran, Karen L. Miner 1989-1-29 Orange city of Newport Beach, Corona del Mar State Beach, Inspiration Point, on SSW-facing sandy ocean bluff 29 Comment
  UCD54364  Euphorbia misera Grady L. Webster 1966-12-11 7479 Orange ocean bluffs at Dana Point. Comment
  RSA752715  Euphorbia peplus Fred M. Roberts, Sandy Leatherman, Jennifer Pareti 2009-4-14 7151 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  SEINET3089588 Image available Euphorbia peplus J. Harry Lehr 1974-5-26 1245 Orange Corner State College Blvd. & Balsam St. 30 Comment
  UCD142472  Euphorbia peplus R. Townsend 1939-12-28 152 Orange Yorba Linda. Comment
  IRVC27724  Euphorbia serpens Mark A. Elvin 2004-5-2 3428 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA797436  Euphorbia serpillifolia Keith E. Hoffmaster 1933-6-19 s.n. Orange Santa Ana. Comment
  UCR191012  Euphorbia spathulata A. C. Sanders, Fred M. Roberts 2008-4-22 35028 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA588849  Euphorbia tirucalli Fred M. Roberts 1989-10-4 4434 Orange South Laguna: south of, and near west end of Monterey Street, 0.6km W Aliso Peak. 33 Comment
  UCR194561  Festuca A. C. Sanders 2008-4-29 35133 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  RSA731318  Festuca californica Fred M. Roberts, Robt. Allen, Chris M. Barnhill, Nancy Hatfield 2005-5-30 6230 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46 km W summit. West-facing slope in loose rocky tallus, full sun, and chaparral borders. 1670 Comment
  UCR102013  Festuca myuros var. myuros B. G. Pitzer 1997-3-25 3007 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR266300  Festuca octoflora D. E. Bramlet 2008-3-26 4119 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 202 m south of the Bee Canyon access road and 151 m west of the active landfill entrance 295 Comment
  IRVC29790  Ficus carica Mark A. Elvin, Dean Kelch 2006-12-9 5315 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  CAS-BOT-BC487556  Ficus microcarpa R. E. Riefner, Jr. 2014-2-24 14 -66 Orange City of Dana Point, W ca 0.1 mi from Island Way along Dana Point Harbor Dr., cliff immediately S of Santa Clara Ave. and Amber Lantern St. 11 Comment
  CAS-BOT-BC487557  Ficus microcarpa R. E. Riefner, Jr. 2014-11-26 14 -399 Orange City of Irvine, W of IrvineBlvd. and S of Pusan Way, former MCAS El Toro facility 138 Comment
  CAS-BOT-BC487558  Ficus microcarpa R. E. Riefner, Jr. 2014-7-13 14 -222 Orange City of Irvine, S side of Red Hill AVe. bridge E of 405 Freeway northbound lane 31 Comment
  UCR267288  Ficus microcarpa R. E. Riefner Jr. 2014-2-24 14- 66 Orange South Coast, city of Dana Point, west c. 0.1 mi from Island Way along Dana Point Harbor Drive, cliff slope immediately south of Santa Clara Avenue and Amber Lantern Street 11 Comment
  IRVC25411  Filago californica Fred M. Roberts, Wayne Ferren 1987-4-8 3360 Orange Upper Newport Back Bay, west side, North Star Beach, 0.8km N Coney Island, Newport Beach 0 Comment
  RSA552943  Filago californica Fred M. Roberts, Carol A. Roberts 1989-4-20 4300 Orange Santa Ana Mtns: Upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5km SE Los Pinos Peak. 980 Comment
  SEINET7073424  Filago californica A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  SEINET8465144 Image available Foeniculum vulgare Virginia Carlson 1967-10-11 Orange Near eastern boundary of Fullerton Golf Course north of Bastanchury Road. Comment
  LA105751  Frangula californica Reid Moran; 1975-7-18 22598 Orange Santa Ana Mountains, Near Yaeger Mine, upper Trabuco Canyon 725.0 Comment
  CAS-BOT-BC53337  Frangula californica subsp. cuspidata P. C. Everett 1935-6-18 7217 Orange Santa Ana Mts., Summit of Santiago Pk. 1731 Comment
  POM2924  Frankenia grandifolia D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  SEINET6671085 Image available Frankenia grandifolia Lawrence M. Booth collection date not given 1037 Orange Newport Bay Comment
  POM48008  Frankenia grandifolia var. campestris I. M. Johnston 1924-8-29 s.n. Orange 4 mi S of Santa Ana Comment
  JEPS30094  Frankenia salina L. M. Booth 1932-5-12 1037 Orange Newport Bay Comment
  RSA539403  Frankenia salina Fred M. Roberts Jr., Karen Swirsky 1988-6-28 4106 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  UC536929  Frankenia salina Lawrence M. Booth 1037 Orange Newport Bay Comment
  CAS-BOT-BC402193  Fraxinus dipetala R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA12722  Fraxinus dipetala Carl B. Wolf 1934-9-21 6139 Orange Silverado canyon, 1/2 mile below Silverado Motorway, W slope of Santa Ana Mts. 640 Comment
  UC1123343  Fraxinus dipetala R. St. John 1931-3-31 202 Orange Silverado Canyon Corona Quad. 365 Comment
  UCR234154  Fraxinus dipetala Dick Newell, Judy Booth 2012-3-25 232 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  CHSC116472  Fraxinus dipetala R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UCR174224  Fraxinus pennsylvanica subsp. velutina A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33043 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  CDA9402  Fraxinus uhdei D. G. Kelch 2006-12-9 6 .535 Orange Along Newport Back Bay Dr. in side canyon. Comment
  UCR132988  Fritillaria biflora Adrian Wolf 2000-4-10 454 Orange Santa Ana Mtns., North Ranch Policy Plan Area, south Baker Canyon Road, 0.28 km south of Baker Road/powerlines intersection 351 Comment
  UCR261710  Fritillaria biflora Dick Newell, Don Millar, Catherine Lovella 2015-3-17 391 Orange Peninsular Range; Santa Ana Mtns. Foothills, Baker Canyon, 0.15 mi. SE of Baker Canyon Rd. and 0.15 mi. NNE of 'top of Baker 361 Comment
  CAS-BOT-BC422452  Fumaria officinalis Ira L. Wiggins 1966-2-16 20445 -A Orange On N. side of Yorba Linda Blvd., near corner of Associated Road, Fullerton. Comment
  RSA184103  Fumaria parviflora I. L. Wiggins 1965-12-5 20366 Orange 2 miles east of Atwood on north side of Orangethorpe Ave. Comment
  UCR220964  Funastrum cynanchoides var. hartwegii Dick Newell, Don Millar 2010-6-22 26 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon wash 1/2 mile north of Hwy 241 toll road 267 Comment
  UCR192724  Galinsoga parviflora A. C. Sanders, Fred M. Roberts 2008-5-6 35226 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  RSA25774  Galinsoga parviflora var. parviflora C. B. Wolf 1941-6-3 10878 Orange Fullerton. Weed in garden of Ray M. Brown, Luanne Ave. 53 Comment
  RSA700195  Galium angustifolium R. H. McArthur 1934-4-7 s.n. Orange Ladd Canyon. Comment
  SD143727  Galium angustifolium Scott D. White 1997-3-28 4850 Orange Santa Ana Mts; above Modjeska Canyon: Proposed water tank site 424 Comment
  SEINET272177  Galium angustifolium G. K. Helmkamp, E. A. Helmkamp 1997-4-24 1655 Orange Cleveland National Forest ; Cleveland National Forest. 1.6 mil. SE of Ortega Hwy (CA-74) on Rd. 7-S14. UTM 10km cell: MH-5E 1N. San Juan Hot Sprin 549 Comment
  UCR76745  Galium angustifolium B. G. Pitzer, Stu Hemstreet 1992-5-27 1961 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  UCR97812  Galium angustifolium Scott D. White 1997-3-28 4850 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  LA208399  Galium angustifolium John Thomas Howell; 1927-6-3 2416 Orange Santa Ana Marsh and adjacent lowlands, Santa Ana Canyons Comment
  SBBG119147  Galium angustifolium R. G. Marushia 2004-4-16 18 Orange El Moro Cyn, Crystal Cove State Park, Laguna Beach, S of No Name Ridge Rd in park, downhill from pullout and below closed road to park entrance 61 Comment
  SD52383  Galium angustifolium subsp. angustifolium Benjamin C. Stone 1953-5-1 328 Orange Coal Creek Canyon of the Santa Ana Mountains 1219 Comment
  RSA0073656  Galium aparine Fred M. Roberts, Lee Ann Caranza 2009-4-7 7142 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 60 Comment
  RSA221069  Galium aparine E. W. Lathrop 1966-5-1 6261 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA734804  Galium aparine A. C. Sanders, Fred M. Roberts 2008-5-6 35252 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  SBBG7296  Galium aparine H. and M. Dearing 1937-3-12 1861 Orange Santa Ana Cyn Comment
  RSA562752  Galium parisiense Steve D. Boyd, Tim S. Ross 1992-5-19 7428 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon. 366 Comment
  UC1543098  Gamochaeta pensylvanica Donald G. Nelson 1936-5-29 427 Orange by fence enclosing orange orchard J. R. Schofield Ranch (on S. Grand Ave., the main highway s of Buena Park); , S. Grand Ave. Comment
  SEINET4039760 Image available Gamochaeta purpurea O. M. Clark 1947-1 14376 Orange Island in Crescent Bay. Comment
  UCR190985  Gamochaeta stagnalis A. C. Sanders, Fred M. Roberts 2008-4-22 34993 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  CAS-BOT-BC282591  Gastridium phleoides F. W. Peirson 1923-9-7 4033 Orange Holy Jim trail to Santiago Peak, Santa Ana Mts. 1143 Comment
  UCR192991  Gastridium ventricosum A. C. Sanders, Fred M. Roberts 2008-6-17 35468 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR191442  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-8 34724 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA702805  Geranium carolinianum D. E. Bramlet, F. M. Roberts 2003-3-27 3357 Orange Donna O Neill Reserve. 152 m. W of Cristianitos Rd. and 1.4 km. N of the E-W access road. 113 Comment
  OBI82304  Geranium incanum var. multifidum Unknown 2011-7-1 11 -78 Orange City of Laguna Beach, South Crescent Bay, vicinity of Circle Drive and Island Way. 5 Comment
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Apr 23 2020
  RSA0035858  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-12-5 12 -588 Orange city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road 9 Comment
  SBBG127247  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-30 12 -285 Orange Talbert Regional Park, general vicinity of Balboa Blvd and 19th St; Costa Mesa 5 Comment
  UCR241096  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-30 12- 285 Orange South Coast, City of Costa Mesa, Talbert Regional Park, general vicinity of Balboa Blvd. and 19th St. 5 Comment
  POM10159  Gilia angelensis P. A. Munz, R. D. Harwood 1920-4-24 3766 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA732081  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34550 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  SEINET5321189  Gilia angelensis A. G. Vestal, W. P. Vestal 1955-3-24 3460 Orange El Toro; About 5 miles east of El Toro Comment
  SEINET272170  Gilia capitata subsp. abrotanifolia G. K. Helmkamp, E. A. Helmkamp 1997-4-24 1660 Orange Cleveland National Forest ; Cleveland National Forest 1.6 mi. SE of Ortega Hwy (CA-74) on Rd. 7-S14. UTM 10km cell: MH-5E 1N. San Juan Hot Spring 549 Comment
  UCR188946  Gilia clivorum Robert DeRuff 1985-3-16 252 Orange Newport Beach, Upper Newport Bay, Eastbluff 31 Comment
  RSA736570  Gnaphalium californicum Keith E. Hoffmaster 1935-4-14 606 Orange Live Oak can. Comment
  RSA859  Gnaphalium californicum J. T. Howell 1927-6-24 207 Orange Aliso Canyon, Rancho Santa Ana. 366 Comment
  UCR195022  Gnaphalium canescens subsp. microcephalum A. C. Sanders, Fred M. Roberts 2008-8-7 35971 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  UCR217284  Gnaphalium canescens subsp. microcephalum Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2217 Orange Peninsular Range; Santa Ana Mtns., c. 1.6 mi. west of Sierra Peak along road to powerlines, near Claymont Clay Mine 457 Comment
  RSA573302  Gnaphalium leucocephalum Steve Boyd 1994-9-14 8359 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucus Canyon Trail crossing near old mining camp. 299 Comment
  UCR138408  Gnaphalium leucocephalum Scott D. White, Brian Leatherman 1997-6-12 5342 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  RSA734630  Gnaphalium luteoalbum A. C. Sanders, T. B. Salvato 2008-5-13 35358 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  POM201938  Gnaphalium palustre L. M. Booth 1932-5-24 1086 Orange Newport Lagoon. Comment
  POM4622  Gnaphalium palustre P. A. Munz 1918-5-4 2209 Orange Laguna Canyon. Comment
  UCR191356  Gnaphalium palustre A. C. Sanders, Fred M. Roberts 2008-4-8 34736 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  IRVC29561  Gnaphalium stramineum Mark A. Elvin, P. A. Bowler 2006-5-13 4861 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA734895  Grindelia camporum A. C. Sanders 2008-5-28 35430 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR113450  Grindelia camporum var. bracteosa R. E. Riefner Jr. 2000-7-8 20- 626 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, on ridgetop overlooking W fork of Fremont Canyon, east of Main Divide Road along the powerline 396 Comment
  CAS-BOT-BC305209  Grindelia hirsutula John Thomas Howell 1931-6-1 6623 Orange San Clemente Comment
  RSA753161  Guillenia lasiophylla D. E. Bramlet 2008-3-31 4133 Orange 305m E of Upper Hicks Haul Rd, in Trib to Limestone Cyn., 1km S of Santiago Cyn. Rd. 311 Comment
  RSA867  Gutierrezia californica J. T. Howell 1927-9-24 746 Orange Santa Ana Botany Garden 152 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
  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
  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
  RSA627787  Hainardia cylindrica Scott D. White 1998-6-26 6785 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  RSA403563  Hainardia cylindrica L. C. Wheeler 1932-6-25 851 Orange 1/2 mile N Newport Bay. 15 Comment
  UCR18041  Haplopappus menziesii A. C. Sanders, W. W. Wright 1974-5-28 00133 Orange South Coast, Newport back bay [Upper Newport Bay], along Bayside Drive 30 Comment
  UCR132982  Harpagonella palmeri Adrian Wolf 2000-4-10 451 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 351 Comment
  RSA0002527  Hasseanthus elongatus L. R. Abrams 1901-06 1785 Orange San Joaquin Hills Comment
  RSA232067  Hazardia squarrosa var. grindelioides C. W. Tilforth 1972-8-20 624 Orange Along County Rd. S19, between Cooks corner and O'Neil Park Comment
  UC1424954  Hazardia squarrosa var. grindelioides C. W. Tilforth 1972-8-20 624 Orange County Rd. S 19 between Cooks Corner and O'Neill Park Comment
  CAS-BOT-BC306304  Hedypnois cretica C. B. Wolf 1938-5-2 9406 Orange City of Fullerton, Francis St., 1200 block E. side in vacant lot 60 Comment
  RSA134384  Hedypnois cretica C. Epling 1943-3-27 s.n. Orange S of Sunset Beach. Comment
  RSA751327  Hedypnois cretica A. C. Sanders, Fred M. Roberts 2008-5-6 35261 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  JEPS35550  Helenium puberulum L. M. Booth 1932-7-9 1285 Orange Bolsas Creek 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
  UCSB52881  Helianthemum scoparium Roberts, Fred 1983-4-9 Orange South Laguna: Niguel Hill; 0.8 km. ESE Aliso Peak; 2.7 km. SW Alicia Fire Station 249 Comment
  CAS-BOT-BC305445  Helianthus annuus Ira L. Wiggins 1965-11-6 20339 Orange Kraemer Oil Estates, near Well No. 14, near end of county road leading to Rancho Santa Ana (extension of Orangethorpe Blvd.) Comment
  POM359985  Helianthus annuus subsp. lenticularis Josephine Derigo 1941-7-25 s.n. Orange Canyon road to Laguna Beach, California. open feilds and road side. Low lands Comment
  UC774875  Helianthus ciliaris E. L. Paddock 1941-8-1 Orange 2 mi e Brea; Graham-Loftus property Comment
  UCR109773  Helianthus ciliaris R. D. Goeden, Don W. Ricker 1965-7-7 s.n. Orange Laguna Hills, Veeh Ranch, c. 1.5 mi. west of El Toro 91 Comment
  UCR11214  Helianthus ciliaris D. O. Clark 1969-7-14 s.n. Orange Veeh Ranch, 2 mi west of El Toro Comment
  CAS-BOT-BC305655  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, n. of El Toro, ca. 11 mi. s.e. of Tustin Comment
  UCR230222  Helianthus gracilentus Dick Newell, Ed Hill 2011-3-29 099 Orange Peninsular Range; Santa Ana Mtns., 200 yards NE of old coal mine, under power lines, off Coal Rd. below intersection with Upper Blind Cyn. Rd. 482 Comment
  RSA92427  Helianthus gracilentus F. W. Peirson 1923-5-5 4147 Orange Trabuco Canyon, Santa Ana Mts. 549 Comment
  RSA748266  Heliotropium curassavicum A. C. Sanders, Fred M. Roberts 2008-6-17 35498 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff s Training Facility, just east of Hwy 241 280 Comment
  UCR248972  Heliotropium curassavicum Jeremiah George, Audrey J. George 2013-11-21 s.n. Orange Los Alamitos, adjacent to Los Alamitos Racetrack, north end of Katella Ave. at junction with Enterprise Dr. 9 Comment
  POM122838  Heliotropium curassavicum var. oculatum Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM369759  Heliotropium curassavicum var. oculatum A. M. Johnson 1932-4-23 4032 Orange Railroad right of way, N of Orange County Comment
  RSA594890  Hemizonia australis Fred M. Roberts 1992-9-9 4847 Orange Irvine: San Joaquin Freshwater Marsh, 2.0 km NW University of California Irvine campus center 2 Comment
  POM360262  Hemizonia fasciculata F. R. Fosberg 1930-7-10 455 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  POM5971  Hemizonia fasciculata D. L. Crawford 1915-09 504 Orange Huntington Beach. Comment
  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
  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
  UCR209343  Hemizonia fasciculata Fred M. Roberts 2008-4-22 6922 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, along Haul Road near asphalt plant, 2.2 km east-northeast of Rattlesnake Reservoir Dam and 2.2 km west-northwest of Bee Peak, Irvine Ranch Conservancy 188 Comment
  RSA121593  Hemizonia fasciculata A. Lewis 1934-04 s.n. Orange Canada Gubernadora, Corona 579 Comment
  RSA806  Hemizonia laevis J. T. Howell 1927-7-15 406 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  CAS-BOT-BC403799  Hesperocnide tenella Steve Boyd; Tim Ross 1992-5-19 7440 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon 335 Comment
  POM2134  Hesperocnide tenella D. L. Crawford 1916-07 1959 Orange Near Laguna Comment
  UCR98232  Hesperocnide tenella B. G. Pitzer 1997-4-15 3138 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  POM202122  Hesperocnide tenella Philip A. Munz 1934-3-26 13134 Orange Newport Beach, Orange. 6 Comment
  SD40663  Hesperocyparis forbesii Carl B. Wolf 1935-1-2 Orange Santa Ana Mountains, slopes of Sierra Peak, west of Claymine Canyon along road to peak 669 Comment
  CAS-BOT-BC143754  Heteromeles arbutifolia Dr. Barton W. Evermann 1918-3-25 s.n. Orange San Clemente Comment
  RSA658198  Heteromeles arbutifolia T. A. Daubert 1991-5-26 657 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, fire road. Comment
  RSA786954  Heteromeles arbutifolia Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49621 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  UCR145985  Heteromeles arbutifolia June Latting 1977-1-12 s.n. Orange Chino Hills, Tonner Canyon 213 Comment
  SD245469  Heteromeles arbutifolia Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49621 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station. 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
  IRVC799  Heterotheca grandiflora A. S. Boughey 151 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  RSA0074065  Heterotheca grandiflora Scott D. White, Michael Honer 2004-5-17 10383 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  RSA0075820  Heterotheca grandiflora Valerie L. Soza, Kim Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1120 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA0075821  Heterotheca grandiflora Scott D. White, Matt Carlton 2003-11-20 9875 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  RSA0075824  Heterotheca grandiflora A. C. Sanders, Fred M. Roberts 2008-7-3 35697 Orange Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  SEINET11266845  Heterotheca grandiflora R. Nelson, Baumann; Kondratieff; Sargent 1988-1-12 5117 Orange San Juan Creek at Lower San Juan Campground.; 0 366 Comment
  UCR80248  Hibiscus trionum E. L. Paddock 1941-9-8 s.n. Orange L.J. Vejar Ranch east of Yorba Linda Comment
  CDA27090  Hoffmannseggia glauca Goodwin 1933-6-7 Orange 0 Comment
  RSA416  Hoita macrostachya J. T. Howell 1928-7-6 1029 A Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA708734  Hoita macrostachya Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6119 Orange Caspers Wilderness Park, Hot Springs Creek in San Juan Cyn., c.a. 0.36km SSW San Juan Ranger Station, at SR 74 crossing. 197 Comment
  UC454700  Hoita macrostachya I. J. Condit 1908-7-25 Orange Huntington Beach Comment
  IRVC18572  Holocarpha virgata Karlin G. Marsh 1980-8-13 Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  POM2592  Holodiscus discolor Philip A. Munz 1918-5-4 2218 Orange Laguna Beach. 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
  RSA728662  Hordeum brachyantherum R. E. Riefner 2002-5-4 2 -101 Orange City of Laguna Beach, Moulton Meadows Park, near Balboa Ave., and Del Mar Ave. 254 Comment
  CAS-BOT-BC285000  Hordeum depressum P. A. Munz 1918-5-5 2192 Orange Laguna Beach Comment
  RSA587884  Hordeum depressum Fred M. Roberts 1990-5-8 4615 Orange Soquel Canyon, 1.2km NNW Gilman Peak 240 Comment
  CHSC109697  Hordeum intercedens D. Bramlet 1999-6-11 2808 Orange On slope 76 m east of Cristianitos Creek and 488 m northeast of the intersection of Avenida Pico and Cristianitos Road. UTM 11S 04 47 340mE x 37 02 080mN 79 Comment
  RSA608537  Hordeum intercedens D. E. Bramlet 1993-4-18 2332 Orange University of California, Irvine Campus, on the UCI Ecological Reserve. The site is 500 ft. southwest of the end of Los Trancos Dr. & 75 ft northwest of the reserve entrance., 37 21 370m. N X 4 21 950m E. Comment
  RSA642526  Hordeum intercedens D. E. Bramlet, Sandy Leatherman 1998-5-29 2631 Orange On slope adjacent to a tributary of Segunda Deshecha Canada, approximately 1,600 ft. north of the existing access road (telega Valley Dr.) and 8,500 ft. north of Avenida Pico;, Approximately 7,100 ft. west of Cristianitos Canyon and 1,700 ft. west of Wilson Camp Rd. UTM 11S 04 45 523mE X 37 04 739mN. 201 Comment
  UCR150374  Hordeum intercedens D. E. Bramlet, S. Leatherman 1998-5-21 2624 Orange Coastal Plains & Basins/Coastal Plains region, Adjacent to ridgeline road 122 m N of the Segunda Deshecha Canada access road (Telaga Valley Dr.), 152 m west of Wilson Camp Rd. c. 2.68 km NE of Avenida Pico and 1.52 km west of Cristianitos Canyon 219 Comment
  UCR85724  Hordeum marinum Scott D. White 1993-4-28 1282 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  UCR207598  Hordeum marinum subsp. gussoneanum O. F. Clarke 2004-5-19 s.n. Orange South Coast, Fairview Park, Costa Mesa 24 Comment
  RSA696594  Hordeum murinum Anonymous s.n. Orange High School Campus. Comment
  UCSB48126  Hordeum vulgare Roberts, Fred 1981-4-11 Orange Highway 74: 5.2km E San Juan Capistrano, near San Juan Creek crossing 52 Comment
  RSA542357  Horkelia cuneata subsp. puberula Fred M. Roberts 1988-4-26 3945 Orange San Joaquin Hills, Pelican Hill, 0.4 km SW summit. 183 Comment
  CAS-BOT-BC537314  Horkelia cuneata var. puberula Philip A. Munz 1936-4-20 14606 Orange Mt. Olympus, Laguna Beach 152 Comment
  UCR231503  Hulsea heterochroma Dick Newell, Judy Booth 2011-6-19 183 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 1086 Comment
  RSA759250  Hulsea heterochroma Robt Allen, G. Victor Leipzig 2008-6-20 s.n. Orange Upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs Forest Gate, 0.8 road miles down from junction with Main Divide Truck Trail. Southwestern end of short road spur. 1313 Comment
  RSA526  Hydrocotyle umbellata J. T. Howell 1927-8-13 624 Orange Santa Ana River Bottom 152 Comment
  POM201671  Hydrocotyle verticillata L. M. Booth 833 Orange Santa Ana Canyon. Comment
  IRVC813  Hypochaeris glabra L. McCabe 1965-4-6 Orange Corona del Mar. Newport Beach Comment
  UCR191464  Hypochaeris glabra A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34650 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  UCR238204  Hypochaeris glabra Mark A. Elvin 2003-3-30 2385 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UCSB52912  Hypochaeris radicata Roberts, Fred; Marsh, K. 1983-5-13 Orange Laguna Beach; Sycamore Hills, central ridge, 1.3 km. NE jct. El Toro and Laguna canyon Rds.; 5.6 km. ESE Signal Peak 155 Comment
  SBBG128744  Ipomoea cairica R. E. Riefner Jr. 2012-11-27 12 -563 Orange City of Laguna Beach, S Crescent Beach, Circle Way near Cliff Drive 3 Comment
  CAS-BOT-BC506646  Iris pseudacorus R. E. Riefner, Jr. 2015-4-24 15 -125 Orange Cit of Newport Beach, Upper Newport Bay, E or Irvine Ave., SSE of 23rd St and NNE of Santiago Dr., along main trail adjacent to willow scrub habitat 4 Comment
  CAS-BOT-BC311671  Isocoma menziesii var. sedoides David D. Keck 1932-9-30 1902 Orange 2 mi. W. of Laguna Beach Comment
  UC1543132  Isocoma menziesii var. sedoides Donald G. Nelson 1935-6-27 332 Orange beaches s Corona del Mar (s of mouth of Newport Bay, on bluffs facing ocean) Comment
  UC1118854  Isocoma menziesii var. vernonioides A. Lewis 1934-4-1 396 Orange San Joaquin Hills Corona Quadrangle Comment
  UC1605435  Isocoma menziesii var. vernonioides Steve Boyd and Tim Ross 1994-9-14 8348 Orange Lucas Canyon Trail trail at divide between Aliso Canyon and Lucas Canyon; Southern Santa Ana Mountains, Cleveland N.F., San Mateo Cany 341 Comment
  RSA728657  Isocoma menziesii var. vernonioides R. E. Riefner 2006-10-24 04 -449 Orange City of Costa Mesa; E of Santa Ana River, NW 0.2 mi from Balboa Blvd and 19th St. 10 Comment
  CAS-BOT-BC112434  Isolepis cernua Mark A. Elvin; D. Kelch 2006-12-9 5302 Orange Southern Coastal: Newport Backbay, Big Canyon, lower end. 3 Comment
  RSA93  Isolepis cernua J. T. Howell 1927-7-6 277 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCSB70085  Isolepis cernua Sanders, A. 2008-7-3 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
  IRVC307  Isomeris arborea D. Christy 1965-5-3 Orange [Newport] Back Bay. Newport Beach Comment
  RSA702688  Isomeris arborea Scott D. White, Michael Honer 2004-5-17 10395 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  UCR109619  Isomeris arborea R. D. Goeden, Don W. Ricker 1965-6-21 s.n. Orange Dana Point 61 Comment
  RSA0042765  Iva hayesiana Fred M. Roberts 2012-7-18 7670 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  UCR239925  Iva hayesiana O. F. Clarke, D. Svehla 2003-5-7 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  POM361345  Jaumea carnosa L. C. Wheeler 1932-6-22 846 Orange Newport Bay, Orange County Comment
  RSA92200  Jaumea carnosa F. W. Peirson 1924-8-29 5076 Orange 3 miles from Balboa Beach. Comment
  RSA701954  Jepsonia parryi Fred M. Roberts, Robert L. Allen 2004-1-16 6021 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.63 km SSW Gato Gate and 0.23km W of Cristianitos Rd. 107 Comment
  UC112094  Juglans E. B. Babcock 1907-9-9 Orange on ranch of E.S. Ware 1 mi n Garden Grove 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
  CAS-BOT-BC101918  Juglans californica Ira L. Wiggins 1965-10-27 20310 Orange stream near Los Angeles County Line, along Brea Canyon Road Comment
  RSA0011060  Juglans californica Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 59 Orange 1000 ft. north of Chino Hills State Park Boundary 229 Comment
  RSA0011061  Juglans californica I. L. Wiggins 1965-5-27 20310 Orange Near Los Angeles County Line, along Brea Canyon Road. Comment
  RSA0011064  Juglans californica E. W. Lathrop 1970-12-7 7146 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 396 Comment
  RSA0011065  Juglans californica Lyman Benson 1947-4-27 12340 Orange Carbon Canyon. Mr. Range: Puente Hills; Drainage area: Pacific Slope. 244 Comment
  RSA791495  Juglans californica Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49613 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station Comment
  RSA17266  Juglans californica var. californica Carl B. Wolf 1936-7-8 8103 Orange West side of Durant St. Santa Ana. 30 Comment
  UCR210312  Juglans hindsii A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37203 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., near Agustine Staging Area at south foot of Blue Diamond Haul Rd. bridge over Santiago Canyon Rd. 253 Comment
  UCR247557  Juglans hindsii R. E. Riefner Jr. 2013-11-6 13- 234 Orange South Coast, city of Laguna Beach, Laguna Canyon, north of Phillips Street on east side of Laguna Canyon Road 71 Comment
  RSA790108  Juglans hindsii R. E. Riefner Jr. 2011-8-25 11 -112 Orange Trabuco Canyon, Trabuco Canyon Rd. ca. 1 mi NW of O Neill Regional Park. 319 Comment
  OBI2855  Juncus acutus subsp. leopoldii L. Neuenschwander 1970-8-20 63 Orange Ca. 4 mi S of Seal Beach, NE of Pacific Coast hwy at Bolsa Chica Salt marsh 0 Comment
  RSA286441  Juncus acutus subsp. leopoldii Mary H. O Brien 1976-5-1 s.n. Orange Bolsa Chica Bay, 1/4 mile south of Bolsa Chica State Beach entrance station and 50m east of Hwy 1; Sea level Comment
  RSA614279  Juncus acutus subsp. leopoldii L. C. Wheeler 1932-6-25 869 Orange Newport Bay: Inland arm of.. Sea level. Comment
  UC536959  Juncus ambiguus Lawrence M. Booth 1932-5-24 1088 Orange Newport Bay Comment
  RSA735751  Juncus balticus A. C. Sanders, Fred M. Roberts 2008-6-17 35492 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff s Training Facility, just east of Hwy 241 280 Comment
  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
  RSA192266  Juncus bufonius E. W. Lathrop 1966-4-10 6157 Orange Silverado Canyon, Santa Ana Mountains, Cleveland Nat l. Forest, Trabuco District. 366 Comment
  RSA22445  Juncus bufonius Alice Eastwood, John Thomas Howell 1937-4-24 3933 Orange Dana Point. Comment
  RSA678522  Juncus bufonius var. bufonius Fred M. Roberts, M. Lee, Kristen Szabo 2001-4-13 5427 Orange Rancho Mission Viejo: South of San Juan Creek, 0.6km WNW Median Rancho Survey Marker. PCR Vernal Pool 2. 183 Comment
  UCSB48028  Juncus bufonius var. bufonius Roberts, Fred 1980-5-4 Orange Mission Viejo: along Santa Fe Railroad and Camino Capistrano; 1.7km N Crown Valley Parkway; 1.1km S BM 316 14 Comment
  UCR217667  Juncus macrophyllus Fred M. Roberts, R. E. Riefner Jr. 2008-5-30 7024 Orange South Coast, Lomas de Santiago, Loma Ridge, Hanging Man's Tree Canyon, along Hanging Man's Tree Canyon Road, c. 0.4 km west of Santiago Canyon Road and 1.23 km north of Bolero Lookout 372 Comment
  POM202728  Juncus mexicanus L. M. Booth 1932-6-4 1153 Orange Newport Lagoon. Comment
  RSA562612  Juncus patens Steve Boyd, Fred M. Roberts 1992-10-14 7714 Orange Northern Santa Ana Mountains, vicinity of Oak Flats (aka Oat Flats) northeast of the junction of Main Divide Road and Skyline Road, just west of Riverside County line 800 Comment
  UCR193024  Juncus patens A. C. Sanders, Mitch Provance 2008-5-20 35399 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR193851  Juncus patens A. C. Sanders, Fred M. Roberts 2008-7-16 35856 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  RSA683076  Juncus phaeocephalus Scott D. White, Amanda Duchardt 2003-5-1 9151 Orange Canada Gobernadora. 122 Comment
  UCR174221  Juncus rugulosus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33025 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  CDA25223  Juncus textilis A. C. Sanders, Fred M. Roberts 2008-8-7 35994 Orange Peninsular Range; Santa Ana Mountains.; Lower Weir Canyon, at narrow gorge c. 0.6 mile above mouth of canyon at Irvine Ranch gate. Comment
  RSA554638  Juncus textilis Scott D. White 1992-10-14 963 Orange Vicinity of city of Brea, immediately N of Carbon Canyon Road.& E of Placentia Ave., ca. 1 mile (airline) SSE of Tonner Canyon. 183 Comment
  UCR153474  Juncus textilis R. E. Riefner Jr., A. Wolf 2000-1-24 20- 108 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Fremont Canyon, north of Santiago Creek and immediately south of major stream fork 305 Comment
  JEPS67112  Juncus torreyi S. B. Parish and W. F. Parish Oct 1882 1593 Orange Orange Comment
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Jul 18 2010
  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
  SEINET11788654  Juncus xiphioides J. F. Bright, Wyman, C. 1933-1 8210 Orange valleys back of La Guna Beach Comment
  RSA683839  Juniperus californica Scott D. White, Michael Honer 2003-5-29 9422 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  IRVC16202  Juniperus monosperma Gordon A. Marsh, K. G. Marsh 1977-11-21 s.n. Orange Ortega Hwy, north side, near Hwy marker 31 and OC BM 3W-24-72, across San Juan Creek from Rancho Mission Viejo Cow Camp; naturalized, numerous small trees. Rancho Mission Viejo Comment
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Mar 28 2014
  POM4196  Keckiella antirrhinoides I. M. Johnston 1918-5-26 s.n. Orange Hills south of Ontario 1 mile west of Santa Ana Canon.. 366 Comment
  RSA293256  Keckiella antirrhinoides D. C. Michener 1980-6-5 3666 Orange Santa Ana Mtns near El Cariso. Steep slopes at head of Dickey Canyon (Alberhill Quadrangle) with Asenostoma. 900 Comment
  RSA659545  Keckiella antirrhinoides P. Shirokawa 1998-5-7 17 Orange Cleveland National Forest- Trabuco Ranger District, 0.35 miles from Ortega Highway (State Highway 74) on North Main Divide Road 823 Comment
  RSA171016  Keckiella cordifolia Robert F. Thorne 1963-7-26 32854 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Cleveland National Forest. 732 Comment
  RSA564474  Keckiella cordifolia B. Pitzer, S. Hemstreet 1992-5-27 1959 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground. 762 Comment
  RSA791873  Keckiella cordifolia Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49620 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  RSA542498  Keckiella ternata subsp. ternata Fred M. Roberts Jr., Richard E. Riefner 1988-7-19 4123 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  RSA539358  Koeleria macrantha Fred M. Roberts, Carol A. Roberts 1988-6-9 4081 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  RSA708524  Koeleria macrantha Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6242 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  CAS-BOT-BC271252  Koeleria pyramidata P. Munz; L. Street; G. Williams 1919-5-3 2633 Orange Santa Ana River Canyon Comment
  RSA725942  Koelreuteria bipinnata R. E. Riefner 2006-11-14 6 -673 Orange South Coast: Irvine, along San Diego Creek at Campus Ave. 4 Comment
  SD236409  Koelreuteria bipinnata T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive. Wide channel between high constructed berms. 6 Comment
  SEINET998786  Koelreuteria bipinnata R. E. Riefner Jr. 2006-1 06 -673 Orange South Coast: Irvine, along San Diego Creek at Campus Ave. (Tustin 7.5' Q.) 4 Comment
  UCR239644  Koelreuteria bipinnata Fred M. Roberts 2012-5-9 7555 Orange Santa Ana Mountains, Lake Forest, along Serrano Creek hiking trail, 1.0 m south-southwest of intersection of Commercentre and Dimension Drives 171 Comment
  POM202181  Lactuca serriola L. M. Booth 1932-7-19 1283 Orange Bolsas Marsh. Comment
  RSA703140  Lactuca serriola Fred M. Roberts, Art Davenport 2003-9-11 6016 Orange Rancho Mission Viejo: Donna O' Neill Land Conservancy. Cristianitos Cyn., 0.79 km N Sycamore Gate 0.23 km w of Crisianitos Road. 126 Comment
  CAS-BOT-BC340502  Lactuca serriola Carl B. Wolf 1932-7-7 3839 Orange Bryant Ranch, Bixby Ave., south edge of field, 100 ft. W. of Hansen Rd., 100 ft. W. of S.E. corner of N.E. 40 of N.E. of Sect. 34 T4S R11W 48 Comment
  RSA716769  Lagunaria patersonia Fred M. Roberts, Chris M. Barnhill 2004-7-10 6074 Orange Laguna Beach: Heisler Park, 0.14km E Recreation Point just above beach. 619 Comment
  SD247453  Lagunaria patersonia R. E. Riefner Jr. 2011-6-29 11 76 Orange City of Laguna Beach, general area of Shaw's Cove, vicinity of Cliff Drive and Fairview Street. 0 Comment
  UCD63274  Lagurus ovatus R. M. Love 1942-4-16 10 Orange 8 mi. east of Santa Ana. Comment
  SD220025  Lamarckia aurea Mark A. Elvin 2004-5-2 3427 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  RSA699157  Lamarckia aurea Rankin s.n. Orange Newport Beach. Comment
  SEINET11678604  Lamarckia aurea J. Bright, Wyman, C. 1933-1 8223 Orange around Laguna Beach 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
  CAS-BOT-BC329173  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1935-3-24 6295 Orange 1 mi N of Buena Park (valley to W of W. Coyote Hills) 53 Comment
  SEINET5585513  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2013-1 13 -39 Orange City of Lake Forest, along El Toro Rd. at Destry Rd. 211 Comment
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Apr 7 2021
  POM294108  Lasthenia gracilis Lyman Benson 1946-4-27 12056 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  UCR170139  Lasthenia gracilis Jeffrey Ross, R. Zaka 1998-5-2 39 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  RSA789492  Lasthenia gracilis Aileen Adams 1932-4-29 8 Orange Slope above dam. [Orange Co.?] Comment
  POM212417  Lathyrus vestitus subsp. alefeldii C. B. Wolf 1931-3-6 1835 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA1702  Lathyrus vestitus subsp. alefeldii C. B. Wolf 1931-3-6 1835 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  POM9824  Lathyrus vestitus subsp. alefeldii P. A. Munz, R. D. Harwood 1920-5-25 3732 Orange Silverado Canyon 549 Comment
  IRVC18939  Layia platyglossa T. L. Ackerman 1982-4-24 82 -260 Orange S of Live Oak Canyon Rd., on dirt trail from road to Methodist Church; disturbed chaparral; Santa Ana Mountains Comment
  IRVC16187  Lepechinia cardiophylla Gordon A. Marsh, Karlin G. Marsh 1978-5-13 s.n. Orange Santa Ana Mtns: Claymine Canyon; road to Coal Canyon Peninsular Ranges 433 Comment
  UC1719509  Lepidium densiflorum D. Atwood 1993-3-27 17692 Orange Corona del Mar State Park along Newport Coast Drive 0 Comment
  RSA731752  Lepidium didymum Fred M. Roberts 2007-11-9 6653 Orange San Juan Canyon along San Juan Creek, about 0.6 km E San Diego FWY. 24 Comment
  RSA326  Lepidium lasiocarpum J. T. Howell 1928-2-26 859 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  IRVC1099  Lepidium lasiocarpum G. Olander 1965-4-3 Orange Corona del Mar, Begonia and 2nd Ave. Newport Beach 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
  RSA627742  Lepidium nitidum Scott D. White 1998-1-26 6066 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, ca. halfway between Berkeley Av. and new freeway (Bonita Cyn.) 37 Comment
  RSA732067  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
  SD27942  Lepidium nitidum Carl B. Wolf 1932-2-15 2657 Orange Rancho Santa Ana Botanic Garden, above the Rubus beds 185 Comment
  IRVC25434  Lepidium pinnatifidum Fred M. Roberts 1987-7-8 3471 Orange San Diego Creek, near San Diego Freeway crossing, 3.2km N UC Irvine Campus center; Irvine 5 Comment
  RSA0116223  Lepidium strictum Fred M. Roberts, Tony Bomkamp, R. E. Riefner 1996-4-19 4963 Orange Costa Mesa; Fairview Park, 0.1km W Canyon School 24 Comment
  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-BC60084  Lepidium virginicum var. menziesii Helen D. Geis 1902-1-1 531 Orange Santiago Creek. Comment
  CAS-BOT-BC329359  Lepidospartum squamatum Helen D. Geis 1902-1-1 s.n. Orange Santiago Canon Comment
  RSA789590  Leptochloa fusca subsp. fascicularis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49632 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  POM202734  Leptochloa fusca subsp. uninervia L. M. Booth 1932-7-18 1262 Orange Costa Mesa, Newport Bay Comment
  RSA712939  Leptochloa fusca subsp. uninervia Fred M. Roberts 2005-10-3 6304 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  CDA23619  Leptochloa uninervia A. Thomas, Mark A. Elvin 2006-9-23 609233 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  RSA17141  Leptosiphon floribundus C. B. Wolf 1936-6-17 7951 Orange Long Ortega Highway San Juan Canyon, 5/10 mi. e. of Orange Co. Line Riverside 366 Comment
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Aug 10 2014
  SD247695  Leptosiphon floribundus subsp. floribundus R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49714 Orange Santa Ana Mountains: Bedrod Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail. Comment
  POM364668  Leptosiphon floribundus subsp. glaber Anstruther Davidson 3068 Orange Modjesta Ranch. Comment
  RSA576  Leptosiphon liniflorus J. T. Howell 1927-6-8 58 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA587876  Leptosiphon liniflorus Fred M. Roberts 1990-5-9 4625 Orange Rancho Mission Viejo; Christianitos Canyon, TRW Lease Holding, 4.3 km NE Clemente Survey Marker. 91 Comment
  SEINET3915524  Lepturus cylindricus Louis C. Wheeler 1932-6-25 851 Orange 1/2 mile N Newport Bay.; 0 15 Comment
  UCR186586  Lessingia filaginifolia Robert DeRuff 1995-1 s.n. Orange Southern Coast, Newport Beach, Newport Back Bay, Eastbluff bench 12 Comment
  UCR140884  Leucojum aestivum Robert DeRuff 1988-2-20 352 Orange Southern Coast, Costa Mesa, Irvine Blvd. and 23rd Street 9 Comment
  RSA172340  Leymus condensatus R. F. Thorne 1963-7-26 32843 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mountains, Cleveland National Forest 762 Comment
  RSA0018625  Leymus condensatus R. H. McArthur 1934-5-19 s.n. Orange Trabuco Canyon Bottom. Comment
  CAS-BOT-BC272201  Leymus triticoides Carl B. Wolf 1932-6-13 3726 Orange Fullerton, Malvern and Nicholas Aves. 53 Comment
  CAS-BOT-BC130582  Lilium humboldtii John Thomas Howell 1927-7-26 2841 Orange SE. fork of Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
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Mar 27 2018
  RSA649674  Lilium humboldtii subsp. ocellatum R. E. Riefner 2000-6-30 20 -594 Orange NCCP North Ranch Policy Plan Area. N Fremont Canyon at Donaldson Ranch adjacent to powerline crossing on W fork of Fremont Canyon drainage. 427 Comment
  UCR237813  Lilium humboldtii subsp. ocellatum Dick Newell, Judy Booth 2012-7-8 280 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 2.25 mi. NE of Maple Springs gate 915 Comment
  UCR177129  Limonium duriusculum R. E. Riefner Jr. 2002-5-4 02- 99 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  SFV20426  Limonium perezii A. Le 2002-4-5 16 Orange Newport Beach. Near residential area near beach. Comment
  UCR188997  Limonium ramosissimum Fred M. Roberts 2007-10-29 6623 Orange South Coast, Niguel Hill, Laguna Niguel. Seaview Park, 1.3 km ENE of Aliso Peak 265 Comment
  CDA1081  Limonium sinuatum D. G. Kelch 2006-12-9 6 .545 Orange Along Newport Back Bay Dr. in side canyon. Comment
  UCD98535  Limonium sinuatum E. Frost 1996-5-11 17 Orange Newport Back Bay, 25 yards in along bike path. Comment
  RSA469962  Linanthus aureus Shaw 1923-03 s.n. Orange Near Irvine Comment
  CAS-BOT-BC226770  Linanthus californicus Munz; Street; Williams 1919-5-3 2629 Orange Santa Ana River Canon [Canyon] Comment
  CAS-BOT-BC226775  Linanthus californicus John Thomas Howell 1927-6-26 2610 Orange Claymine Canon [Canyon], n. Santa Ana Mts. 457 Comment
  UCD39066  Linanthus californicus Beecher Crampton 1963-5-7 6789 Orange 11 miles northeast of San Juan Capistrano, State Hwy. 74, Lower San Juan Canyon, Santa Ana Mtns. Comment
  UCSB47635  Linanthus californicus Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, on north side of road, 0.3km SE Trabuco Peak, Santa Ana Mtns. 1340 Comment
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Jan 23 2015
  RSA584716  Linanthus californicus subsp. glandulosus Fred M. Roberts 1989-5-18 4370 Orange Santa Ana Mountains: Upper Gypsum canyon, above ridge road, ca. 6.4 km WSW Sierra Peak. 415 Comment
  HSC17099  Linanthus dianthiflorus J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  JEPS89271  Linanthus dianthiflorus Rimo Bacigalupi and L. Heckard, P. C. Hutchison 1962-3-16 8233 Orange 2 mi n Doheny Beach State Park (fields above ocean) Comment
  RSA773510  Linanthus dianthiflorus Fred M. Roberts 1999-4-26 5198 Orange Lomas de Santiago: Lomas Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Canyon and the wash, 1.4 km SE Silverado School, and 2.7 km N Bolero Lookout. 358 Comment
  SEINET6969978  Linanthus dianthiflorus W. P. Vestal, A. G. Vestal 1955-3-24 3459 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  UCR128169  Linanthus liniflorus Scott D. White, Michael Honer 2003-5-29 9424 Orange Santa Ana Mtn foothills, Rancho Mission Viejo. Hills above Canada Gobernadora on west side of canyon, c. 1 air mile north of Ortega Hwy. 152 Comment
  RSA790708  Linaria canadensis Pomeroy 1929-3-16 103 Orange Costa Mesa. CP3. Comment
  UC1419618  Linaria maroccana J. McNeill 1969-4-10 3034 Orange Newport, Eastbluffs, Irvine Arboretum Irvine Arboretum; Upper Newport Bay, Newport, Eastbluffs, Irvine Arboretum 15 Comment
  RSA594875  Lindernia dubia Fred M. Roberts Jr., Wayne Ferren 1991-12-1 4830 Orange San Josquin Hills: Laguna Canyon, Upper Laguna Lake, 3.5 km N junction El Tprp Rd. , 4.9 km ENE Signal Peak; 113 Comment
  UCR140881  Lippia nodiflora var. rosea Robert DeRuff 1983-7-23 293 Orange Southern Coast, Newport Beach, Newport Back Bay, Big Canyon where Back Bay Drive crosses the small stream 8 Comment
  RSA733826  Lithophragma affine Minor Warne 1934-04 s.n. Orange Laguna Canyon Forks Comment
  IRVC16249  Lobelia dunnii var. serrata Karlin G. Marsh 1977-9-23 Orange Holy Jim Canyon, Holy Jim Falls. Santa Ana Mountains Comment
  POM193486  Lobelia dunnii var. serrata Helen E. Sweet 1928-08 s.n. Orange Santiago Canyon. 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
  UC729941  Lolium perenne Carl B. Wolf 1932-6-13 3728 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  RSA651759  Lolium perenne Diane T. Liggett 1981-5-16 6 Orange Riverside Freeway (91) east to Imperial Hwy, south to Nohl Ranch Road, east to Serrano Ave., south on Hidden Canyon Road, 1 km into Weir Canyon. Comment
  POM202588  Lolium perenne subsp. multiflorum L. M. Booth 1932-5-15 1203 Orange Costa Mesa. Comment
  SEINET8465373 Image available Lomatium dasycarpum Norman Cooper 1944-6-4 1324 Orange Elsinore Mountain 1067 Comment
  RSA542445  Lomatium dasycarpum subsp. dasycarpum Fred M. Roberts 1988-4-10 3913 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  RSA564109  Lomatium dasycarpum subsp. dasycarpum B. Pitzer, S. Hemstreet 1992-5-27 1956 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground. 762 Comment
  UCR130488  Lomatium utriculatum R. E. Riefner Jr. 2000-4-27 00- 392 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running south from Baker Canyon Road to Silverado Road 335 Comment
  RSA7459  Lonicera subspicata var. denudata C. B. Wolf 1933-8-24 5377 Orange 1/2 mile below summit of Bedford Motorway, east slope of Santa Ana Mountains. 976 Comment
  CAS-BOT-BC198563  Lotus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest 396 Comment
  RSA542544  Lotus hamatus Fred M. Roberts 1988-4-10 3914 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  RSA679091  Lotus heermannii var. heermannii Fred M. Roberts 2003-7-24 5968 Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  UCR174218  Lotus purshianus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33042 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA751257  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-7-16 35882 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 358 Comment
  UCR175057  Lotus salsuginosus Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  UCR193847  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-7-16 35882 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  HSC1875  Lotus scoparius J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  HSC1876  Lotus scoparius J. W. Johnson 1961-2-19 Orange Newport Beach, above upper Newport Bay Comment
  POM276672  Lotus scoparius Lyman Benson 1932-3-26 3200 Orange Dana Point. 60 Comment
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Apr 29 2008
  RSA393  Lotus scoparius J. T. Howell 1927-6-1 4 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA498846  Lotus scoparius E. S. Spalding 1923-12-1 20335 Orange San Juan Capistrano, sea shore. Comment
  UCR4073  Lotus scoparius Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, 100 yards from Pacific Coast Highway on Salt Creek Road toward the beach. Between South Laguna and Dana Point 18 Comment
  RSA406884  Lotus scoparius N. C. Cooper 1943-12-26 2015 Orange Corona Del Mar Comment
  RSA681947  Lotus scoparius var. scoparius Fred M. Roberts, David E. Bramlet 2003-3-7 5570 Orange Donna O'Neill Land Conservancy; Ridge west of Christianitos Canyon, Middle Ridge Trail, 1.1km NW Gato Gate. 178 Comment
  RSA725937  Lotus scoparius var. scoparius R. E. Riefner 2006-7-2 06 -277 Orange Costa Mesa, St. Route 73 at 55 Freeway interchange 20 Comment
  UCR222873  Lotus scoparius var. scoparius T. B. Salvato 2010-10-27 5110 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  RSA391  Lotus strigosus J. T. Howell 1928-2-25 842 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA629056  Lotus strigosus Valerie L. Soza, LeRoy Gross 1999-6-10 523 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1554 Comment
  RSA733878  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-4-8 34746 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 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
  RSA588706  Lotus strigosus Fred M. Roberts, Carol A. Roberts 1990-5-23 4644 Orange Santa Ana Mtns: West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5 km SE Los Pinos Peak. 756 Comment
  PASA1114  Lotus subpinnatus Frank W. Peirson 1922-5-18 Orange Santa Ana 137 Comment
  RSA16338  Lotus unifoliolatus P. C. Everett 1935-6-18 7196 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
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Dec 14 2011
  UC537009  Lotus wrangelianus Lawrence M. Booth 1932-5-19 1073 Orange Newport Bay Comment
  UCR266379  Ludwigia D. E. Bramlet 2009-11-20 4426 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  RSA21063  Ludwigia peploides subsp. peploides Ramon Valverde 1938-8-4 3229 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA731953  Ludwigia peploides subsp. peploides Fred M. Roberts 2007-12-12 6705 Orange Santa Ana Canyon: Santa Ana River, south of Green River Golf course on south side of river, 0.4km E Coal Cyn. Rd. and 0.7km W Riverside Co. line. 129 Comment
  SD227862  Ludwigia repens Scott D. White, Brian Leatherman 1997-6-12 5343 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 jtn. 45 Comment
  POM201839  Lupinus L. M. Booth 1932-5-19 1072 Orange Newport Bay. Comment
  RSA0036357  Lupinus albifrons Andrew Wheeler 2009-5-12 s.n. Orange Long Canyon Road, between Blue Jay Campground and Convict Camp, 4 miles west of Lake Elsinore. Comment
  JEPS65411  Lupinus bicolor Alice King 1908-4-18 Orange Santa Ana Mts. Comment
  POM9122  Lupinus bicolor subsp. microphyllus Philip A. Munz, R. D. Harwood 1920-4-24 3768 Orange Sierra [Freemont] Canyon, Santa Ana Mountains. 366 Comment
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Sep 17 2011
  IRVC15184  Lupinus bicolor subsp. umbellatus Gordon A. Marsh, K. Conrey 1975-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam Southern Coastal Comment
  SD251230  Lupinus excubitus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49802 Orange Santa Ana Mountains: Trabuco Canyon Comment
  IRVC2309  Lupinus excubitus var. hallii C. Thompson 1965-5-8 s.n. Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA503878  Lupinus excubitus var. hallii N. C. Cooper 1949-5-1 3942 Orange San Juan Canyon 610 Comment
  RSA798188  Lupinus excubitus var. hallii Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49597 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station Comment
  RSA413701  Lupinus hirsutissimus M. B. Dunkle 1933-3-5 3081 Orange San Juan Canyon. Comment
  UCR240077  Lupinus latifolius Dick Newell, Don Millar 2012-5-22 255 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hangmans Tree Rd. at Santiago Creek 350 Comment
  UC718433  Lupinus latifolius var. parishii P. C. Everett 1935-6-19 7229 Orange Main Divide Motorway Bear Spring (Bear Spring); Santa Ana Mts., Bear Spring 1219 Comment
  POM2601  Lupinus longifolius Philip A. Munz 1918-5-4 2201 Orange Laguna Beach. Comment
  RSA4866  Lupinus longifolius E. R. Johnson 1932-4-15 2957 Orange Rancho Santa Ana, 1mile NWof Roundtop (section 16) 457 Comment
  SEINET6932686 Image available Lupinus nanus W. P. Vestal, A. G. Vestal 1955-3-24 3455 Orange Trabuco Canyon, ca. 5 miles east of El Toro. Comment
  RSA183373  Lupinus polycarpus C. Leo Hitchcock 1966-3-15 24135 Orange 1/2 mile E of Brea Comment
  SEINET2073427  Lupinus polyphyllus var. polyphyllus R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, growing in hard-packed sand of sand hill. Comment
  RSA722341  Lupinus sparsiflorus Unspecified s.n. Orange Orange County park Comment
  RSA0041968  Lupinus sparsiflorus Paul Shirokawa 1998-5-7 25 Orange Cleveland National Forest: Trabuco Ranger District, 4.15 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 1066 Comment
  IRVC2335  Lupinus sparsiflorus subsp. sparsiflorus D. Frees 1965-3-13 s.n. Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  POM6382  Lupinus sparsiflorus subsp. sparsiflorus Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2632 Orange Santa Ana River Canyon Comment
  IRVC2355  Lupinus succulentus Janet Morgan 1965-3-3 s.n. Orange Laguna Canyon. Southern Coastal Comment
  RSA507484  Lupinus succulentus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA749484  Lupinus succulentus Fred M. Roberts 2008-3-25 6792 Orange Loma Ridge: Upper Hicks Cyn. near Haul Road, c.a. 4.4 km by road from Portola Pkwy. and 3.2 km ENE Rattlesnake Cyn. Reservoir. 269 Comment
  UCR223415  Lupinus succulentus Dick Newell, Don Millar 2011-2-8 051 Orange Peninsular Range; Santa Ana Mtns., lower Black Star Canyon, along access road ('State Spur') to Lakeview Rd. 260 Comment
  RSA0055061  Lupinus succulentus Jim Shevock 1971-3-8 757 Orange Trabuco Canyon, Santa Monica Mountains. 396 Comment
  IRVC8859  Lupinus truncatus Charles W. Sexton 1964-5-17 s.n. Orange Holy Jim Canyon. Santa Ana Mountains Comment
  RSA404  Lupinus truncatus J. T. Howell 1928-2-25 839 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA681014  Lupinus truncatus Fred M. Roberts, D. E. Bramlet 2003-3-13 5580 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 207 Comment
  RSA758902  Lupinus truncatus A. C. Sanders, Mitch Provance 2008-5-20 35393 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR203985  Lupinus truncatus Fred M. Roberts 2008-3-12 6726 Orange South Coast, Dana Point Headlands Center for Natural Lands Mgmt. Preserve, west side, c. 0.8 km west of Marine Institute, Dana Point Harbor 50 Comment
  RSA615548  Lycium andersonii Sandy Leatherman, Brian Daniels 1994-12-16 s.n. Orange Lomas de Santiago: west of Lomas Ridge, 1.2 km NE Siphon Reservoir dam. 183 Comment
  LA209655  Lycium californicum B. R. Lower; 1954-4-25 sn Orange Laguna Beach Comment
  POM4193  Lycium californicum I. M. Johnston 1918-5-5 1949 Orange Laguna Beach. Comment
  UCR222626  Lycium californicum T. B. Salvato 2010-10-27 5101 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  OBI33516  Lysimachia arvensis Nancy J. Moriarty 1973-5-27 730527 -3 Orange San Clemente State Beach 1 mi S of the end of Ave Califia in the sand below the bluffs Comment
  RSA0014844  Lythrum californicum Scott D. White 1998-5-31 6570 Orange University of California Irvine Campus, Southwest of Farm School site (now proposed as Student Rec. Ctr.). 37 Comment
  RSA0014845  Lythrum californicum Scott D. White 1997-6-12 5315 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  UCSB47995  Lythrum californicum Roberts, Fred 1980-7-7 Orange Santa Ana Mtns; San Juan Canyon, Hwy 74, 2.4km ENE San Juan Guard Station; 0.3km W Bench Mark 1100 315 Comment
  RSA0014840  Lythrum californicum F. W. Peirson 1924-8-29 5066 Orange 4 miles south of Santa Ana. Comment
  RSA0014841  Lythrum californicum Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49631 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UCR193437  Lythrum hyssopifolia A. C. Sanders, Fred M. Roberts 2008-5-6 35238 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  POM49378  Madia elegans subsp. elegans L. R. Abrams 1901-06 1817 Orange Santiago Peak Trail 915 Comment
  CAS-BOT-BC334710  Madia gracilis A. C. Sanders; Mitch Provance 2008-5-20 35390 Orange Lomas de Santiago mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon c. 1/2 mile below Modjeska Canyon confluence, Santa Ana Mountains, Peninsular Range 365 Comment
  RSA759166  Madia gracilis A. C. Sanders, Mitch Provance 2008-5-20 35390 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC206238  Malacothamnus fasciculatus Ethel H. Campbell 1921-5-1 88 Orange Between Oceanside and San Juan Capistrano. Comment
  RSA433317  Malacothamnus fasciculatus Thekla Mohr 1917-04 1931 Orange Laguna. 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
  RSA708288  Malacothamnus fasciculatus Scott D. White, Jennifer H. Jones 2005-3-31 10861 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  UCD134433  Malacothrix saxatilis B. Pitzer 1997-11-8 3371 Orange Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point ca. 1.75 miles up the canyon. 30 Comment
  RSA743460  Malacothrix saxatilis var. saxatilis Fred M. Roberts 2008-7-10 7068 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  JEPS112967  Malacothrix saxatilis var. tenuifolia Dean W. Taylor 1994-6-7 14410 Orange Newport Bay; along Backbay Drive at the junction with San Joaquin Hills Drive 6 Comment
  RSA678507  Malephora crocea Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1106 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  LA62900  Malosma laurina W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  UC68860  Malosma laurina H. M. Hall July, 1905 6731 Orange Santa Ana R. Comment
  UCR140791  Malosma laurina Robin G. Marushia 2004-5-4 017 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  RSA0089200  Malva parviflora Fred M. Roberts 2014-4-21 7852 Orange South Coast: San Joaquin Hills: Laguna Lake 1 (Upper Laguna Lake), south basin. 113 Comment
  RSA734957  Malva parviflora Keith E. Hoffmaster 1927-1-9 455 Orange Santa Ana Comment
  RSA5574  Malva parviflora Carl B. Wolf 1932-6-28 3768 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA77178  Malvella leprosa F. W. Peirson 1924-5-31 4646 Orange Laguna Canyon, near Laguna Beach. 107 Comment
  SEINET11972070  Marah fabacea J. F. Bright, Wyman, C. 1933-1 8097 Orange Santa Ana foothills Comment
  RSA441214  Marah macrocarpa M. B. Dunkle 1933-3-5 3092 Orange San Juan Canyon. Comment
  RSA441222  Marah macrocarpa L. C. Wheeler 1934-1-14 2356 Orange 1 mile E mouth of Aliso canyon near Laguna. 30 Comment
  UCSB47970  Marah macrocarpa Roberts, Jr., Fred 1980-2-17 Orange Dana bluffs along Scenic Drive Road, northwest of and above Dana Point Harbor, Dana Point 58 Comment
  OBI17602  Marrubium vulgare Kurt R. Neisess 1975-12-20 s.n. Orange Fullerton Hills area Comment
  POM202026  Marrubium vulgare L. M. Booth 1932-5-24 1107 Orange West Side of Newport Lagoon. Comment
  RSA658205  Marrubium vulgare T. A. Daubert 1991-5-19 651 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island. Comment
  UCSB12635  Marrubium vulgare Whittington, M. 1962-4-20 Orange South side of Back Newport Bay about .5 miles south of salt works, Newport 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
  CAS-BOT-BC67806  Marsilea vestita Arthur Haupt 1935-4-12 s.n. Orange Costa Mesa Comment
  RSA665955  Marsilea vestita Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5426 Orange Rancho Mission Viejo: South of San Juan Creek, 0.6km WNW Median Rancho Survey Marker., PCR Vernal Pool 2. 183 Comment
  RSA85842  Marsilea vestita F. W. Peirson 1924-5-31 4645 Orange Laguna Canyon, near Laguna Beach 106 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
  CAS-BOT-BC348163  Matricaria discoidea Ira L. Wiggins 1966-3-22 20553 Orange Silverado Canyon about 1/2 mi. below entrance to Cleveland National Forest Comment
  UCR103165  Matricaria matricarioides Scott D. White 1997-3-26 4807 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  RSA202176  Matricaria occidentalis L. M. Booth 1932-5-12 1011 Orange Newport Bay. Comment
  CAS-BOT-BC60300  Matthiola incana James R. Shevock 1974-2-26 3272 Orange Along California highway 1 (Pacific Coast Highway) at Bolsa Chica Beach. 3 Comment
  JEPS13969  Matthiola incana D. L. Crawford 1922-8-3 743 Orange Aliso Point; Laguna Beach Region, Aliso Point Comment
  CDA6381  Mazus japonicus G. D. Barbe 1973-7-9 1694 Orange Bordier s Nursery, 7231 Irvine Boulevard, Santa Ana (Tustin). 0 Comment
  RSA797820  Meconella denticulata Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49809 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CDA27610  Medicago arborea Robert L. Pope 1969-5-22 Orange No other information. 0 Comment
  RSA697983  Medicago hispida Marjorie Smith s.n. Orange Santa Ana High school grounds. Comment
  RSA39348  Medicago lupulina E. L. Paddock 1943-6-22 12736 Orange East side Glassell Street north of Fairhaven. Comment
  IRVC2373  Medicago polymorpha Anonymous 1965-3-14 Orange Dana Point. Southern Coastal Comment
  UCD107895  Medicago polymorpha Ira L. Wiggins 1966-3-22 20539 Orange About 5 miles above Ranger Station, Cleveland National Forest, Silverado Canyon. Comment
  POM348035  Medicago polymorpha E. S. Spalding 1923-1-1 s.n. Orange Laguna Beach. Comment
  RSA709724  Medicago polymorpha J. B. Anderson 1966-4-16 581 Orange Corona Del Mar: Buck Gully - Little Corona Beach. 0 Comment
  IRVC2389  Medicago sativa L. Stilgenbauer 1965-4-20 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  CAS-BOT-BC227847  Melaleuca nesophila R. E. Riefner, Jr. 2011-7-1 11 -82 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1 mi from Poppy Avenue 1 Comment
  IRVC26847  Melica frutescens S. D. White 1997-3-28 4840 Orange Above Modjeska Canyon, proposed water tank site. Santa Ana Mountains 427 Comment
  CAS-BOT-BC94724  Melica imperfecta R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 718 Orange Chino Hills State Park. South Ridge Road W of San Juan Hill, going W from Equestrian Staging Area. Top of ridge 1450 Comment
  LA10610  Melica imperfecta A. M. Johnson; 1934-4-15 4416 Orange Carmen's, Laguna Beach Comment
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Aug 29 2015
  RSA403489  Melica imperfecta Thekla Mohr 1917-04 3219 Orange Laguna Comment
  RSA697718  Melica imperfecta Anonymous s.n. Orange Orange County park Comment
  SD123844  Melica imperfecta E. W. Lathrop 1966-5-13 6298 Orange Santa Ana Mountains, 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest 395 Comment
  SEINET11678864  Melica imperfecta J. F. Bright, Wyman, C. 1933-1 8214 Orange in foothills near Laguna Beach Comment
  IRVC2397  Melilotus albus Anonymous 1965-3-14 s.n. Orange Dana Point. Southern Coastal Comment
  IRVC2400  Melilotus albus Kathy Durica 1965-5-2 s.n. Orange Costa Mesa; Maple Ave. Southern Coastal Comment
  RSA657750  Melilotus albus Ken Greby 1985-5-17 39 Orange behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  CDA25989  Melilotus indicus Mark A. Elvin 2004-5-2 3410 Orange Southern Coastal; Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7km (air) NNW UC Irvine campus center Comment
  IRVC2406  Melilotus indicus C. Thompson 1965-4-10 s.n. Orange Newport Beach; Corona del Mar, Cameo Highlands. Southern Coastal Comment
  RSA678511  Melilotus indicus Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1128 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCR154336  Melilotus indicus Mark A. Elvin 2004-5-2 3410 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA400  Melilotus indicus J. T. Howell 1927-7-18 429 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR235510  Melinis repens R. E. Riefner Jr. 2011-8-16 11- 98 Orange South Coast, Newport Beach, Orange County Parks and Recreation lands, along Newport Coast Drive, between Vista Ridge Road and Alteza Road 281 Comment
  RSA759106  Mentzelia Robt. Allen, Genevieve Walden 2008-6-26 s.n. Orange Modjeska Peak. N face, along access road up Modjeska Peak, outside the sharp bend in the extreme N end of the road. Survey point 47. 1514 Comment
  SEINET6054556  Mentzelia albicaulis Unknown 2008-6-26 Orange Peninsular Ranges. Santa Ana Mountains. Modjeska Peak, north face. Along access road up Modjeska Peak, outside the sharp bend in the extreme N end of the road. Survey Point # 47. Comment
  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
  RSA441  Mentzelia micrantha J. T. Howell 1927-7-3 260 Orange Claymine Canyon near Sierra Peak. 305 Comment
  UCR193464  Mentzelia micrantha A. C. Sanders, T. B. Salvato 2008-5-13 35354 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA741704  Mentzelia micrantha R. E. Riefner Jr. 2007-6-11 07 -252 Orange Santa Ana Mtns., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, upper Fremont Canyon, Donaldson Ranch area. 382 Comment
  RSA759203  Mentzelia micrantha Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, S face, base of a steep fire break cut from the summit down to the access road. Survey point 61. 1634 Comment
  CAS-BOT-BC435234  Mesembryanthemum crystallinum Carl B. Wolf 1932-6-28 3791 Orange Bryant Ranch near fence 100 ft. south of north west corner of the N.W.40 of S.E.160 of Sec. 27. T4S R11W. Comment
  RSA696448  Mesembryanthemum crystallinum Minor Warne 1934-5-6 s.n. Orange Bluffs Corona Del Mar Comment
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Jun 24 2009
  IRVC17949  Mesembryanthemum nodiflorum A. B. McGee 1980-6-12 Orange San Joaquin Freshwater Marsh, south side; center of road. Irvine Comment
  RSA752848  Mesembryanthemum nodiflorum Fred M. Roberts 2009-4-21 7156 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  RSA263682  Micropus californicus E. W. Lathrop 1966-4-10 6154 Orange Silverado Canyon Comment
  RSA588725  Micropus californicus Fred M. Roberts 1990-5-7 4605 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  RSA535967  Micropus californicus Fred M. Roberts 1989-4-17 4266 Orange SANTA ANA MTNS: Central Blind Canyon, 7.3km SW Sierra Peak, 2.4km N Irvine Lake. 259 Comment
  IRVC20789  Microseris douglasii subsp. douglasii Fred M. Roberts, S. L. Fritzke 1982-4-3 472 Orange Dana Point: hills .0 km N Dana Hills HS, 1.9 km W Marco Forester Jr HS. Southern Coastal 100 Comment
  RSA625807  Microseris douglasii subsp. platycarpha Scott D. White, Noel Davis 1998-4-24 6345 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd. just N of jct. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow. 305 Comment
  UCR157699  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-5-15 289 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCR158095  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-5-4 203 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, Aliso Canyon 0.75 km SW of Woods Canyon, 2.25 km NNW of Aliso Water Treatment Plant, north of access road 30 Comment
  UCR171017  Microseris douglasii subsp. platycarpha R. E. Riefner Jr. 2006-4-12 06- 117 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. 46 Comment
  UCR208155  Microseris douglasii subsp. platycarpha Fred M. Roberts, D. E. Bramlet 2003-3-27 5621 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.79km N Sycamore Gate, 0.23km W Cristianitos Rd. 126 Comment
  RSA649067  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2973 Orange Fremont Canyon. The site is 335 m south of the existing access road on the north ridge of the canyon. The site is 1.21km northeast of Santiago Creek. 335 Comment
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Feb 21 2007
  RSA68354  Microseris lindleyi G. R. Campbell 1951-5-30 16102 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest. 152 Comment
  UC943905  Mimulus M. Van Rensselaer 1944-11-26 1876 Orange about 2 mi ne Laguna Beach; Laguna Canyon Comment
  RSA683067  Mimulus aurantiacus Fred M. Roberts 2003-3-19 5604 Orange Donna O'Neill Land Conservancy: Ridges west of Cristianitos Cyn., 1,750m NNW Sycamore gate and 315m W Cristianitos Rd. (Canada Gobernadora) 192 Comment
  RSA649084  Mimulus aurantiacus subsp. australis Karl Price 1988-4-29 20 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  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
  RSA448179  Mimulus aurantiacus var. puniceus N. C. Cooper 1944-6-4 1341 Orange San Juan Canyon. 305 Comment
  RSA602642  Mimulus aurantiacus var. puniceus B. Pitzer 1996-4-30 2801 Orange San Joaquin Hills Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy). 15 Comment
  RSA732274  Mimulus brevipes A. C. Sanders 2008-4-29 35125 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  UCR174193  Mimulus cardinalis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33017 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA17463  Mimulus cardinalis Percy C. Everett 1936-9-19 8271 Orange Silverado Canyon. 7/10 mi. eat of shadybrook resort. 701 Comment
  UCSB48200  Mimulus cardinalis Roberts, Fred 1981-6-26 Orange Sant Ana Mts; Viejo Canyon; 0.1km N Calif. Rte. 74; 2.7km E San Juan Gurad Station 291 Comment
  POM256712  Mimulus clevelandii W. Pequegnat 1940-6-15 s.n. Orange Trabuco Peak 1220 Comment
  RSA716770  Mimulus clevelandii Fred M. Roberts, Michelle Balk, Robert Allen, Carol A. Roberts 2004-7-18 6075 Orange Santa Ana Mtns.: Upper Trabuco Cyn. along Trabuco Cyn. Trail, 1.3km NE Los Pinos Pk. and c.a. 0.25km by trail from Main Divide Truck Trail. 1245 Comment
  RSA447957  Mimulus guttatus M. B. Dunkle 1934-6-18 3948 Orange San Juan Canyon. 305 Comment
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Jun 14 2012
  RSA731992  Mirabilis laevis A. C. Sanders, L. Farley, F. M. Roberts, D. E. Bramlet 2008-4-1 34651 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  UCR193818  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-7-16 35870 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  JEPS61343  Mirabilis laevis var. crassifolia Alice King 1908-4-18 Orange near Santa Ana; ; Near Santa Ana Comment
  SBBG93266  Mollugo verticillata D. G. Nelson 1936-7-26 442 Orange mesa N of Newport Beach, Costa Mesa Comment
  CHSC30534  Monanthochloe littoralis T. B. Devine 1980-4-2 626 Orange On Back Bay Dr. E. of Upper Newport Bay ca 2 mi. N. of jct. with Jamboree Rd. Comment
  RSA765071  Monardella hypoleuca A. C. Sanders, Mark A. Elvin 2005-9-2 31607 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 820 Comment
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Aug 13 2012
  SD220682  Monardella hypoleuca subsp. hypoleuca Lisa Young 2009-6-18 Orange East end of the town of Silverado, on old mine trail heading south between Pine and Halfway Canyons. On top of a ridge. 835 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
  UCR238209  Monardella linoides Mark A. Elvin 2002-7-13 s.n. Orange Southern Coast, Irvine; UCI Arboretum 15 Comment
  LA57164  Monardella macrantha subsp. hallii Carl B. Wolf; 1933-8-24 5406 Orange Santa Ana Mountains, along main divide motorway between Bedford Peak and Santiago Peak Comment
  IRVC26699  Moraea fergusoniae Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3173 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA450862  Muhlenbergia asperifolia Gordon Marsh, Karlin G. Marsh 1977-11-21 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. Comment
  UCR24029  Muhlenbergia asperifolia John C. Roos 1936-10-9 2508 Orange Olive. On the canal bank Comment
  CAS-BOT-BC275289  Muhlenbergia microsperma Steve Boyd; Tim Ross 1992-5-19 7448 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Aliso Canyon at the confluence with Lucas Canyon, upstream to the Lucas Canyon Trail crossing 335 Comment
  CAS-BOT-BC275292  Muhlenbergia microsperma Helen D. Geis 1902-1-1 556 Orange Unspecified Comment
  LA9673  Muhlenbergia microsperma LeRoy Abrams; 1903-4-18 3260 Orange near San Juan Capristrano Comment
  RSA542362  Muhlenbergia microsperma Fred M. Roberts 1988-5-13 3970 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout 439 Comment
  UCR192222  Muhlenbergia rigens A. C. Sanders, Fred M. Roberts 2008-5-6 35273 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 379 Comment
  UCSB48199  Muhlenbergia rigens Roberts, Fred 1981-6-26 Orange Viejo Cyn., 0.4 km N Calif. Rte. 74; 2.7 km ENE San Juan Guard Station; Santa Ana Mts. 311 Comment
  UCR237840  Myoporum laetum Mark A. Elvin 2003-2-2 2269 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA0010809  Myoporum laetum Robert F. Thorne 1975-4-6 45588 Orange San Joaquin Marsh: north margin of marsh Comment
  UCR51539  Myosotis R. Ascanio 1988-5-25 s.n. Orange Hwy 74 c. 5 mi east of San Juan Capistrano Comment
  CAS-BOT-BC219357  Nama stenocarpa Helen D. Geis 1902-1-1 551 Orange Laguna Lake, San Joaquin Hills Comment
  CAS-BOT-BC259820  Nassella cernua Ira L. Wiggins 1966-3-16 20527 Orange Near entrance to Firestone Boy Scout Reservation Comment
  RSA184087  Nassella lepida I. L. Wiggins 1966-3-2 20487 Orange Roadside, carbon Canyon 1.5 miles above the dam, Orange County Comment
  RSA697693  Nassella lepida Anonymous s.n. Orange Orange County park Comment
  RSA701600  Nassella lepida Rankin s.n. Orange Silverado Comment
  RSA588802  Nassella pulchra Fred M. Roberts 1990-5-7 4596 Orange Rancho Mission Viejo: Ridge south of Blind Canyon, TRW Lease Holding, 4.9 km NE Clemente Survey Marker. 152 Comment
  UC407317  Nassella pulchra LeRoy Abrams 1903-4-18 3269 Orange Trabuco Canyon Capistrano Comment
  CAS-BOT-BC60333  Nasturtium officinale John Thomas Howell 1927-7-15 2777 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  RSA697463  Nasturtium officinale Effie Jessup s.n. Orange Irvine Hills. Comment
  UCR24248  Navarretia hamata subsp. leptantha Alfred R. Roos 1941-6-14 s.n. Orange Corona del Mar 91 Comment
  CAS-BOT-BC109090  Nemacaulis denudata var. denudata Le Roy Abrams 1901-6-1 1757 Orange Anaheim Landing. Comment
  RSA678514  Nemacaulis denudata var. denudata Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1131 Orange Bolsa Chica Beach State Park and Bolsa Chica Ecological Reserve Boundary, alongside Pacific Coast Highway. 3 Comment
  RSA799945  Nemacaulis denudata var. denudata Justin M. Wood 2011-4-12 3667 Orange South Coast, Santa Ana River: marsh just upstream of Pacific Coast Highway. 0 Comment
  UCR207191  Nemacaulis denudata var. denudata O. F. Clarke 2003-5-7 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  UCR42388  Nemacaulis denudata var. denudata A. C. Sanders 1986-5-31 6532 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  RSA734280  Nemacladus ramosissimus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34643 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA751161  Nemacladus ramosissimus D. E. Bramlet 2008-4-14 4177 Orange Ridgeline in Hicks Cyn. 99m NW of the haul Rd. & 331m N of the Asphalt plant 211 Comment
  RSA421356  Nemophila menziesii Gale Sphon 1955-3-13 s.n. Orange Silverado Canyon Comment
  RSA616  Nemophila menziesii J. T. Howell 1928-3-18 889 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  JEPS1893  Nemophila menziesii var. integrifolia Alice King April, 1908 Orange Santa Ana Mountains Comment
  POM347132  Nemophila menziesii var. integrifolia Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  RSA708532  Nerium oleander Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6107 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  UCR247906  Nerium oleander Fred M. Roberts 2013-6-12 7787 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  SEINET10936050  Nerium oleander Charlene A. Bennett 1976-7-21 Bennett 428 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hill; some native shrubs, etc. 152 Comment
  RSA733734  Nicotiana bigelovii Gray s.n. Orange Orange Park Hill Comment
  LA45882  Nicotiana glauca W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA701973  Nicotiana glauca Fred M. Roberts, David E. Bramlet 2003-6-20 5925 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  UCD126659  Nicotiana glauca P. B. Kennedy 1925-1-12 11 Orange Irvine Ranch. Comment
  RSA503158  Nicotiana glauca Gary D. Wallace, G. Cromwell 1966-4-16 452 Orange W edge of Cleveland Nat. For. about 5 mi. E of San Juan Capistrano, in the Santa Ana Mountains, in Hot Springs Canyon. Comment
  RSA651999  Nicotiana glauca Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange. 61 Comment
  RSA659636  Nicotiana glauca T. A. Daubert 1991-5-26 673 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, fire road. Comment
  RSA662130  Nicotiana glauca Daniel Curran 1981-1-25 6 Orange Coal Canyon Rd. Comment
  JEPS12369  Nicotiana quadrivalvis Alice King Apr 1908 Orange Santiago Creek; Santa Ana Mountains Comment
  SEINET7067536  Nicotiana quadrivalvis A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash northwest of Orange. Coordinate datum: NAD27. UTM Zone 11, 418667mE, 3739612mN. Comment
  POM20633  Nolina cismontana Philip A. Munz 1923-9-6 7728 Orange Madjeska s Ranch Comment
  UCR207516  Nolina cismontana O. F. Clarke 2006-5-6 s.n. Orange Peninsular Range; Santa Ana Mtns., Coal Canyon 305 Comment
  UCR37795  Nolina cismontana Steve Boyd, L. F. LaPre 1981-5-27 s.n. Orange Santa Ana Mtns., Northern end of the Santa Ana Mtns., along powerline road on ridges east of Weir Canyon & at the head of Gypsum Canyon. Comment
  SEINET9120476  Nolina parryi J. Dice, H. Wier 1984-1 587 Orange Mission Viejo. 1.2 km. NW of Lake Mission Viejo, along south edge of Vista del Lago, just west of Canaveras 274 Comment
  RSA725515  Nyctocereus serpentinus Fred M. Roberts, Robert L. Allen 2007-9-28 6615 Orange Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  RSA98320  Oenanthe sarmentosa F. W. Peirson 1924-2-9 4525 Orange Between Wintersberg and the sea. Comment
  RSA733638  Oenothera dentata Minor Warne 1934-03 s.n. Orange Near El Toro Comment
  RSA698244  Oenothera elata subsp. hirsutissima J. R. Bruff 1930-10 16 Orange Santa Ana River Bed. Comment
  UCR239649  Oenothera speciosa Fred M. Roberts 2012-5-9 7550 Orange Santa Ana Mountains, Lake Forest, near Serrano Creek utility road, 0.3 m south-southwest of intersection of Commercentre and Dimension Drives 206 Comment
  RSA609020  Oligomeris linifolia L. M. Booth 1932-5-24 1097 Orange Newport Bay. 8 Comment
  CAS-BOT-BC427454  Oligomeris linifolia Bradshaw 1902-1-1 s.n. Orange Arch Beach Comment
  RSA0035855  Oncosiphon piluliferum R. E. Riefner Jr. 2012-4-22 12 -71 Orange city of Newport Beach, Newport Bay, Dover Shores, vicinity of West Wind Way and Santiago Drive 22 Comment
  UCR240190  Oncosiphon piluliferum R. E. Riefner Jr. 2012-4-22 12- 71 Orange South Coast, city of Newport Beach, Newport Bay, Dover Shores, vicinity of West Wind Way and Santiago Drive 22 Comment
  RSA792124  Oncosiphon piluliferum R. E. Riefner Jr. 2011-5-20 11 -57 Orange Newport Beach, Coastal Peak Park, East Coastal Peak Road at Ridge Park Road 305 Comment
  OBI7084  Opuntia Walkington, Pinkava, G. Smith & McLeod, McLeod 1971-5-9 MGM 295 (=DLW470) Orange Orange, CA. down from saddle at E end of hill Comment
  RSA288741  Opuntia M. G. McLeod, D. L. Walkington, D. J. Pinkava, G. Smith 1970-9-7 292 -B Orange West side of Euclid Avenue, 1/2 mi N of bastanchury, Fullerton. Comment
  SD152894  Opuntia X occidentalis Steve Boyd, Tim Ross 1992-5-19 7425 Orange Southern Santa Ana Mountains, San MateoCanyon Wilderness Area, western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo north into Aliso Canyon. Local, openings in chaparral. (IPB 9/07) 365 Comment
  POM284094A  Opuntia littoralis Lyman Benson 1955-10-17 15598 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  UCR223965  Opuntia littoralis Fred M. Roberts 2008-10-27 7127 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west northwest of Marine Institute, Dana Point Harbor 65 Comment
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Nov 20 2018
  POM317769  Opuntia vaseyi David Walkington 1963-9-13 217 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  RSA708238  Orobanche fasciculata Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6233 Orange Southwest arm of Modjeska Peak, 1.2km SW summit, Main Divide Rd. near jct. of road to summit. 1533 Comment
  RSA0027779  Orobanche fasciculata Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49677 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] 457 Comment
  POM156459  Orthocarpus densiflorus var. gracilis L. R. Abrams 1903-4-18 3266 Orange Near San Juan Capistrano Comment
  POM202722  Orthocarpus purpurascens L. M. Booth 1932-5-12 1048 Orange Newport Beach Comment
  RSA13172  Orthocarpus purpurascens var. pallidus Percy C. Everett 1935-4-27 6693 Orange 1 mi. west of Atwood, Jack Johnson property. 152 Comment
  RSA184120  Oryza sativa I. L. Wiggins 1965-11-6 20335 Orange Drainage gutter near railway right of way, along west side of Atwood Comment
  CAS-BOT-BC355782  Osmadenia tenella H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  SD255070  Osmorhiza brachypoda R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49790 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SEINET10801634  Osteospermum ecklonis Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-7-21 Bennett 433 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  POM353432  Oxalis albicans subsp. californica Carl B. Wolf 1931-3-6 1858 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  RSA722453  Oxalis californica Unspecified s.n. Orange Orange County park. Comment
  RSA737550  Oxalis pes-caprae Fred M. Roberts 2008-3-12 6738 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA7752  Oxalis pes-caprae E. R. Johnson 1932-07 s.n. Orange Edge of orange grove along river bottom, Rancho Santa Ana Comment
  SEINET3347440 Image available Oxalis pes-caprae P. S. Rattle Spring 1938 Orange Huntington Beach Comment
  UCR241054  Oxalis rubra Robert DeRuff 2011-4-14 379 B Orange South Coast, Upper Newport Bay, below Eastbluff North on bay side of Back Bay Dr. 4 Comment
  CAS-BOT-BC121211  Paeonia californica J. T. Howell 1927-6-6 2425 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  SD247679  Paeonia californica R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49715 Orange Santa Ana Mountains: Bedrod Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail. Comment
  RSA797015  Pallenis maritima R. E. Riefner Jr. 2010-1-2 10 -3 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2 Comment
  UCR241100  Pallenis maritima R. E. Riefner Jr. 2010-1-2 10- 03 Orange South Coast, City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2.5 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
  RSA697732  Panicum capillare Anonymous 1928-1 6 Orange Santa Ana River flats. 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
  RSA699175  Papaver heterophyllum Olive Bernice Spears 1932-3-29 s.n. Orange South of Olinda. Comment
  SEINET182347 Image available Parapholis incurva Lawrence M. Booth 1932-5-12 1009 Orange Newport Bay Comment
  RSA542349  Parietaria hespera var. hespera Fred M. Roberts Jr. 1987-4-21 3382 Orange Aliso Viejo: Aliso Creek, Aliso Creek bike Trail. 3.0 km ENE Moulton Peak. 73 Comment
  POM9119  Parietaria hespera var. hespera Philip A. Munz, R. D. Harwood 1920-4-24 3786 Orange Santa Ana Mountains, Sierra [Freemont] Canyon. 366 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
  CAS-BOT-BC478187  Parthenium hysterophorus Jan West 2015-4-22 s.n. Orange Santa Ana, SE corner of E 17th Street, and Lincoln Ave., 0.5 km east of I-5 on 17th, between RR tracks and Lincoln and adjacent dry waste strip in front of auto body and paint shop, east of tracks 49 Comment
  CDA22571  Paspalum dilatatum J. B. Anderson 1966-5-16 643 Orange Santa Ana Heights: Bayview Avenue and Zenith Avenue. 0 Comment
  UC455153  Paspalum distichum I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  RSA91899  Paspalum distichum F. W. Peirson 1924-8-29 5096 Orange Road from Artesia to Hungtington Beach, along ditch Comment
  RSA733056  Paspalum vaginatum R. E. Riefner 2008-1-13 41855 Orange City of Laguna Beach, Aliso Creek at Pacific Coast Hwy. 9 Comment
  RSA769299  Paspalum vaginatum R. E. Riefner Jr., K. Campbell 2008-8-31 80 -267 Orange City of Irvine, tidal portion of San Diego Creek, Immediately east of Hwy. 73 overpass. 1 Comment
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Dec 14 2012
  UCD169410  Paspalum vaginatum R. E. Riefner Jr. 2012-10-21 12- 523 Orange City of Newport Beach, south of Poppy Street/Ocean Blvd, creek at base of stairs, Little Corona Beach. 7 Comment
  IRVC19345  Pectocarya linearis subsp. ferocula R. L. Allen 1975-3-1 Orange Dana Hills High School Canyon, 14m NW of south entrance, 12m W of culvert. Dana Point Comment
  SD247735  Pedicularis densiflora R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49711 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  JEPS117764  Pelargonium Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal: UCI Arboretum. Comment
  CHSC60  Pellaea andromedifolia S. Westerberg 1938-3-24 Orange Santa Ana. Comment
  SEINET9628398 Image available Pellaea andromedifolia M. D. Windham 1985-7-9 711 Orange In the Santa Ana Mts. along small tributary of Hot Spring Canyon ca. 1.88 km NNE of its confluence with San Juan Creek. Cleveland N.F. Canada Gobernadora Quad (7 1/2 min.). 293 Comment
  UC185251  Pellaea andromedifolia Mrs. Carlotta C. Hall 1913-5-27 9407 Orange Santiago Canyon Comment
  UCSB48093  Pellaea andromedifolia Roberts, Fred 1981-4-12 Orange Santa Ana Mtns.: San Juan Canyon, Hwy 74, 1.3km by road E of San Juan Guard Station, 0.9km SE Juan Rancho SM 295 Comment
  CAS-BOT-BC71393  Pellaea mucronata Carl B. Wolf 1933-8-24 5396 Orange Santa Ana Mts., summit of Santiago Pk. 1731 Comment
  RSA660591  Pellaea mucronata var. mucronata R. E. Riefner 2000-8-8 20 -719 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  UCR193469  Pennisetum clandestinum A. C. Sanders, T. B. Salvato 2008-5-13 35350 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA610216  Pennisetum setaceum Fred M. Roberts 1997-4-19 5013 Orange San Juan Canyon along San Juan Creek at CA. Rte. 74 bridge just east of San Juan Hot Springs, 0.8km SSE Juan Rancho Surbey Mark 240 Comment
  RSA723968  Pennisetum villosum R. E. Riefner 2005-9-20 05 -669 Orange City of San Clemente, along El Camino Read ca. 0.15 mi S of intersection with Los Molinos Rd. 35 Comment
  VVC489  Penstemon cordifolius P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  UCR227630  Penstemon grinnellii Robt. L. Allen 2003-6-22 12274 Orange Santa Ana Mountains, west-facing flank of Santiago Peak, along North Main Divide Road 1555 Comment
  POM18089  Penstemon heterophyllus var. australis Philip A. Munz 1923-9-7 7748 Orange Santiago Peak in Santa Ana Mountains. 1707 Comment
  RSA220992  Penstemon heterophyllus var. australis E. W. Lathrop 1966-4-18 6186 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UCR241073  Penstemon spectabilis Dick Newell, Don Millar 2013-4-16 325 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago; lower Hangman's Tree Canyon at Santiago Canyon wash, 300 ft. west of Santiago Canyon Rd. 361 Comment
  RSA298693  Penstemon spectabilis D. C. Michener 1982-5-24 4045 Orange Open road bank along Main divide truck route 5.4 mi. north of El Cariso. Comment
  CAS-BOT-BC330488  Pentachaeta aurea Theodore Payne 1910-4-17 s.n. Orange El Toro, near the epot Comment
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Apr 24 2021
  RSA697045  Pentachaeta aurea Keith E. Hoffmaster 1935-3-17 s.n. Orange Near El Toro (Trabuco rd.) Comment
  UC1952548  Pentachaeta aurea D. Bramlet 1994-4-1 2367 Orange San Joaquin Hills. Camarillo Canyon area, some 427 m West of Laguna Canyon road and 671 m N of Camarillo Canyon. Comment
  HSC1086  Pentagramma triangularis J. W. Johnson 1961-3-29 Orange Newport Beach, on S side of upper Newport Bay Comment
  RSA0060348  Pentagramma triangularis J. R. Shevock 1970-12-20 572 Orange Silverado Canyon. 585 Comment
  IRVC19371  Pentagramma triangularis subsp. triangularis R. L. Allen 1975-12-29 Orange Dana Hills High School Canyon; east-facing slope under coastal sageplant. Dana Point Comment
  IRVC14090  Pentagramma triangularis subsp. triangularis K. Marvosh 1966-5-3 Orange Silverado Canyon, 400yds S community center; moist, rocky, shaded bank of stream. Santa Ana Mountains Comment
  CAS-BOT-BC77510  Peritoma arborea var. arborea Carl B. Wolf 1932-3-8 2684 Orange 1/2 mi. No. of Corona Del Mar, borders of Newport Bay 7 Comment
  CHSC109272  Persicaria lapathifolia Scott D. White; Matt Carlton 2003-11-20 9869 Orange Santa Ana Mountain Foothills: San Juan Creek in San Juan Capistrano 24 Comment
  UCR186686  Persicaria lapathifolia T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1907 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  RSA689  Petunia parviflora J. T. Howell 1927-7-18 426 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA16333  Phacelia brachyloba Percy C. Everett 1935-6-18 720 Orange Santa Ana Mts, Main Divide Motorway 1.4 miles N of Los Pinos Potrero 1098 Comment
  UCR193073  Phacelia brachyloba A. C. Sanders, Mitch Provance 2008-5-20 35423 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA638969  Phacelia cicutaria var. hispida Valerie L. Soza, LeRoy Gross 1999-6-8 498 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  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
  RSA741474  Phacelia cicutaria var. hubbyi R. E. Riefner Jr. 2008-5-13 8 -76 Orange Near City of Orange, W side of Hicks Haul Rd, Irvine Ranch Reserve, Management Area 11.. Comment
  RSA699144  Phacelia hispida R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA20370  Phacelia minor Percy C. Everett 1938-4-11 9399 Orange Rancho Santa Ana, Santa Ana Canyon, north of Pear Orchard. 122 Comment
  RSA542474  Phacelia minor Fred M. Roberts 1988-3-15 3851 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark. 149 Comment
  RSA697788  Phacelia minor Snow s.n. Orange Black Star Canyon. Comment
  UCR193824  Phacelia minor A. C. Sanders, Fred M. Roberts 2008-7-16 35873 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UC672389  Phacelia parryi Herbert L. Mason 1926-4-25 2911 Orange 5 mi s Laguna Comment
  RSA627527  Phacelia parryi Sandy Leatherman, Fred M. Roberts, B. Leatherman, Trish Smith 1998-5-23 22 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. 335 Comment
  RSA699775  Phacelia parryi Keith E. Hoffmaster 1937-4-25 s.n. Orange Ladd can., Santa Ana Mts. 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
  UCSB48216  Phacelia ramosissima Roberts, Dar; Roberts, Jr., Fred 1983-5-3 Orange Santa Ana Mtns.; Hot Springs Canyon, 0.5 km. by road N of Cal. Rte. 74 (San Juan Guard Sta.) 238 Comment
  RSA678724  Phacelia ramosissima var. austrolitoralis Fred M. Roberts, Robert Allen, Carol Roberts 2003-5-11 5855 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  RSA697796  Phacelia tanacetifolia H. Dittmer 1932-4-6 s.n. Orange Vacant lot - Corner Chapman and Cambridge. Comment
  CAS-BOT-BC250615  Phalaris minor Carl B. Wolf 1932-7-7 3854 Orange Bryant Ranch, Bixby Ave., 3/10 mi. E. of Los Alamitos Blvd., about 250 ft. E. of S.W. corner of N.W. 40 of N.E. of Sect. 31 T4S R11W 48 Comment
  RSA666099  Phalaris minor Fred M. Roberts, Michelle Lee 2001-6-4 5483 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4., (Canada Gobernadora: 33 deg 33'11''N, 117 deg 37'18''W) 226 Comment
  RSA5942  Phalaris minor C. B. Wolf 1932-7-7 3854 Orange Bixby Ave. 0.3 mile east of Los Alamitos Blvd. (250 ft E of SW corner of NE/4 of NE/4 of Sec 31 T4S R11W) 8 Comment
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Apr 10 2014
  CDA22565  Phalaris paradoxa J. B. Anderson 1966-4-26 620 Orange University of California, Irvine. South of Science Lecture Hall. 0 Comment
  HSC13745  Pholistoma auritum J. W. Johnson 1961-4-2 Orange Newport Beach, along Upper Newport Bay. Comment
  UC1377701  Pholistoma auritum John Ingram 1960-3-29 263 Orange along rd. 2 mi. above O'Neill Park; Trabuco Canyon Comment
  RSA651  Phyla lanceolata J. T. Howell 1927-6-30 244 Orange Bryant Ranch, near Long Beach. 15 Comment
  UC536905  Phyla lanceolata Lawrence M. Booth 1932-7-1 1238 Orange Anaheim Meadows Comment
  RSA683932  Phyllospadix scouleri E. Yale Dawson 1957-2-14 16149 Orange Laguna Beach, Orange County Comment
  RSA384024  Phyllospadix torreyi Gigas 1832-6-26 15492 Orange Laguna Beach. Comment
  RSA684046  Phyllospadix torreyi E. Yale Dawson 1958-11-10 19762 Orange First rocky spit N of Dana Point. Station no 22. Pool at 190 ft from shore base point. Comment
  UC1974774  Phyllospadix torreyi Alison Kendall 2003-5-20 Orange Crystal Cove Comment
  UCR98774  Physalis crassifolia D. E. Bramlet 1994-6-2 2380 Orange San Joaquin Hills. On ridgeline NW of Laguna Canyon; located 396 m west of Laguna Canyon Road and 305 m north of Little Sycamore Canyon 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
  RSA5826  Picris echioides C. B. Wolf 1932-6-28 3796 Orange Bryant Ranch, north boundary of field, N.E. corner of N-E 1/4 S.W. 1/4 sect 27 9 Comment
  RSA929  Picris echioides J. T. Howell 1927-7-29 514 Orange Near east boundary of Rancho Santa Ana. 152 Comment
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Nov 18 2009
  RSA610236  Pilularia americana Fred M. Roberts, Tony Bomkamp, Rick Riefner 1997-2-27 4978 Orange Costa Mesa: Fairview Park, 0.1 km W Canyon School. 24 Comment
  CAS-BOT-BC73333  Pinus attenuata Carl B. Wolf 1934-12-21 6260 Orange N.E. of Sugarloaf Peak (Plesants Pk.), along Main St. Trail, Santa Ana Mts. 1158 Comment
  POM212313  Pinus attenuata C. B. Wolf 1934-12-21 6260 Orange N.E. of Sugarloaf Peak (Pleasants Pk.), along Main St. Trail, Santa Ana Mts. Altitude 3800 ft.c. 1159 Comment
  MACF029432  Pinus coulteri Robert L. Allen; Heather E. Wendel; Xanic J. Rondon; Laurie A. Clarke 2001-7-13 12242 Orange Santa Ana Range, San Juan Canyon, 3.7 road miles E of San Juan Guard Station following Ortega Hwy SR74. Lower San Juan Picnic Area, SW of region of main picnic area 443.7 Comment
  RSA129457  Pinus coulteri H. E. Norton 1931-3-20 44 Orange Corona. T4S R7W [Corona Quadrangle map]. Plot #30, Corona #2. Comment
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Jul 14 2014
  HSC1549  Pinus quadrifolia Uknown 1957-8-21 Orange Laguna area Comment
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Nov 16 2016
  CAS-BOT-BC136555  Piperia cooperi Alice Eastwood; John Thomas Howell 1937-4-24 3924 Orange Field redacted by CAS, contact the data manager for more information Comment
  RSA376207  Piperia cooperi E. W. Lathrop 1986-5-18 7856 Orange 200 meters south of the Cleveland National Forest, Trabuco district boundary, along road between the USFS Tenaja Guard station and Cottonwood Creek. Comment
  UC1178460  Piperia leptopetala Peter Kamb 1948-6-19 1103 Orange Holy Jim Canyon Santa Ana Mts. 609 Comment
  RSA599183  Piptatherum miliaceum Scott D. White 1997-3-28 4826 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  SBBG15548  Plagiobothrys D. E. Breedlove 1962-3-9 1797 Orange St Hwy 74, 4.4 mi E of San Juan Capistrano 112 Comment
  RSA699337  Plagiobothrys arizonicus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. 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
  RSA732172  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-3-25 34542 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA450857  Plagiobothrys collinus var. californicus Gordon Marsh 1978-3-17 s.n. Orange UC Irvine Ecological Preserve. 98 Comment
  RSA696205  Plagiobothrys collinus var. californicus Minor Warne 1934-3-10 s.n. Orange Wash near El Toro Comment
  UCSB56509  Plagiobothrys collinus var. gracilis Marsh, G. 1978-3-17 Orange U.C. Irvine Ecological Preserve: in swale near hilltop of Hill #3 85 Comment
  RSA732156  Plagiobothrys nothofulvus A. C. Sanders, Fred M. Roberts 2008-4-22 35030 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  SBBG16000  Plagiobothrys nothofulvus D. E. Breedlove 1962-3-9 1795 Orange 4.4 mi E of San Juan Capistrano on St Hwy 74 112 Comment
  SD27971  Plagiobothrys nothofulvus Carl B. Wolf 1932-3-8 2695 Orange West base of Santa Ana Mountains 305 Comment
  RSA680562  Plantago erecta Scott D. White 2003-3-21 8814 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
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Oct 4 2010
  UCR192214  Plantago erecta A. C. Sanders, Fred M. Roberts 2008-5-6 35253 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  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
  POM201756  Plantago hirtella var. galeottiana L. M. Booth 1932-6-17 1208 Orange Bolsas Marsh. Comment
  CLARK-A1528-3428  Plantago indica John C. Roos 1957-7-29 6657 Orange Newport Beach Comment
  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
  SD241125  Plantago subnuda A. C. Sanders 2011-8-20 39889 Orange South Coast: city of Placentia, Tri-City Park on North Kraemer Blvd. at Golden Ave. (Yorba Linda 7.5'Q) 103 Comment
  RSA542453  Platanus racemosa Fred M. Roberts 1988-4-8 3898 Orange Lomas de Santiago: Loma Ridge, Central Linestone Canyon, 4.1 kilometers NNW Bolero Lookout. 323 Comment
  RSA652981  Platanus racemosa Darren Day, Hal Willis 1984-5-5 16 Orange This plant was found growing on the east side of Laguna Canyon Rd. as you are traveling towards the city of Laguna Beach. This location is approximately 3.4 miles out of town. Comment
  CAS-BOT-BC92244  Platystemon californicus D. E. Breedlove 1962-3-9 1799 Orange 4.4 miles east of San Juan Capistrano on State 74. 112 Comment
  RSA766066  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 -151 Orange City of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort. 2 Comment
  SD218286  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 312 Orange City of Laguna Beach, vicinity of West St. and Pacific Coast Highway. Comment
  UCR229286  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-7-7 11- 88 Orange city of Dana Point, south of Mussel Cove, north of Salt Creek Beach Park 9 Comment
  UCR230581  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-6-25 11- 71 Orange South Coast, city of Laguna Beach, Woods Cove, vicinity of Ocean Way at Pearl Street 9 Comment
  CDA34944  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-3-18 07 -153 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Lane and Polaris Drive. Comment
  RSA731529  Plecostachys serpyllifolia R. E. Riefner 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Ln. and Polaris Dr. 8 Comment
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Dec 13 2012
  RSA765879  Plecostachys serpyllifolia R. E. Riefner Jr. 2005-9-9 05 -654 Orange City of Lake Forest, Aliso Creek, S side of Portola Pkwy. and W of El Toro Rd. 225 Comment
  RSA766077  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 -312 Orange City of Laguna Beach, vicinity of West St. and Pacific Coast Hwy. 4 Comment
  UCSB57585  Plectritis ciliosa Roberts, Fred 1984-4-14 Orange Santa Ana Mtns.: Chiquito Basin, San Juan Trail, 1.9km SW Blue Jay Campground; 2.8km S Los Pinos Peak 840 Comment
  UCR146415  Pluchea odorata Sandra L. Leatherman 1998-9-3 45 Orange Coastal Plains & Basins; South Coastal Plain, Dana Point: Monarch Beach, northeast of the intersection of State Highway 1 and Crown Valley Parkway, and west of Salt Creek 30 Comment
  UCR146539  Pluchea odorata Scott D. White 2004-7-7 10605 Orange South Coast, Laguna Niguel, along Pacific Island Drive 122 Comment
  UCR220961  Pluchea sericea Dick Newell, Don Millar 2010-4-27 020 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon wash 1/4 mile north of Hwy 241 toll road 226 Comment
  RSA716662  Plumbago auriculata Fred M. Roberts, Amber Oneal 2004-8-18 6095 Orange San Juan Capistrno: Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  IRVC17048  Poa annua Bruce Reynolds 1965-4-19 s.n. Orange Newport Beach; Corona del Mar, Corona Del Mar High School. Southern Coastal Comment
  IRVC1789  Poa annua I. L. Wiggins 1966-2-1 20405 Orange California State College, Fullerton; orange grove just E of Letters and Science Building. Southern Coastal Comment
  IRVC13913  Poa secunda R. Meinzer 1971-5-24 108 Orange Santa Ana Mountains: Summit of Santiago Peak, upper elevation. Peninsular Ranges Comment
  RSA542549  Poa secunda Fred M. Roberts 1988-2-9 3777 Orange Lomas de Santiago: Loma Ridge, 1.3 km N Bee Survey Mark., UTM 3733600m N, 434800m E 381 Comment
  RSA785454  Polygala cornuta subsp. fishiae A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39941 Orange near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  UCR158809  Polygala cornuta subsp. fishiae A. C. Sanders, Mark A. Elvin 2005-9-2 31611 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
  IRVC28641  Polygala cornuta var. fishiae Mark A. Elvin, A. C. Sanders 2005-9-2 4496 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA5379  Polygala cornuta var. fishiae B. D. Stark 1932-12-30 4460 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA557729  Polygala cornuta var. fishiae Steve Boyd, Tim S. Ross 1992-5-4 7172 Orange Santa Ana Mountains, San Juan Canyon along Ortega Hwy (Hwy 74) at pullout 2.9 miles east of San Juan Guard Station. Comment
  RSA588890  Polygala cornuta var. fishiae Fred M. Roberts 1990-6-4 4664 Orange Santa Ana Mountains: Hall Canyon, 1.8 km NNW Mustang Spring at east edge of Flying B Ranch. 421 Comment
  SD245439  Polygala cornuta var. fishiae Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49615 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station, lateral ravine tributary to San Juan Canyon. Comment
  CAS-BOT-BC110520  Polygonum Mrs. H. C. Cantelow 1933-7-9 431 Orange Coast near San Juan de Capistrano. Comment
  POM201772  Polygonum argyrocoleon L. M. Booth 1932-7-25 s.n. Orange Santa Ana River 2 miles from ocean. Comment
  RSA749041  Polygonum aviculare A. C. Sanders, Fred M. Roberts 2008-8-7 35972 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  SD236380  Polygonum aviculare Jeffrey Ross, R. Zaka 1998-5-2 40 Orange South Coast: North side of San Joaquin hills; William R. Mason Regional Park, near intersection of Yale Ave and University drive. 24 Comment
  UCR158163  Polygonum aviculare Adrian Wolf 1998-5-15 271 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  OBI30214  Polygonum aviculare SAW 1971-3-12 3 F Orange Cal State Fullerton Campus 122 Comment
  UCSB48371  Polygonum aviculare Roberts, Fred 1982-5-22 Orange DANA POINT: jct. of Stone Hill and Selva Rds 1.0km ESE Dana Hills High School; 1.7km SW Marco Forster Junior High School 12 Comment
  CAS-BOT-BC414040  Polygonum aviculare subsp. aviculare John Thomas Howell 1927-6-21 2564 Orange North side of Santa Ana Canon [Canyon] 152 Comment
  RSA184163  Polygonum aviculare subsp. aviculare I. L. Wiggins 1965-11-7 20364 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  RSA196  Polygonum aviculare subsp. aviculare J. T. Howell 1927-6-21 178 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  IRVC20324  Polypodium californicum Fred M. Roberts 1982-12-10 848 Orange Laguna Beach: Upper Park Canyon, west flank of Temple Hill, 1.8km NEof Thurston School, 0.8km WNW of Top of the World School. Southern Coastal 240 Comment
  IRVC20354  Polypodium californicum Fred M. Roberts 1983-3-10 880 Orange Dana Point headlands: south of old cove road on cliff at west margin of Dana Point Harbor; 0.8km s of Richard Henry Dana School. Southern Coastal 50 Comment
  IRVC22502  Polypodium californicum Fred M. Roberts 1985-5-1 1692 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  POM188245  Polypodium californicum Marcus E. Jones 1931-3-23 20425 Orange Laguna Comment
  UCR280606  Polypodium californicum R. E. Riefner Jr. 2017-3-31 17- 137 Orange South Coast, city of San Clemente, San Clemente State Beach, northwest bluff area immediately south of Ave. Calafia 24 Comment
  UCSB62525  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Santa Ana Mtns., Trabuco Canyon, vicinity of the upper canyon camps. 762 Comment
  IRVC14155  Polypodium californicum K. Marvosh 1966-4-26 s.n. Orange Silverado Canyon: 1mi S of end of paved roads, along stream bank. Southern Coastal Comment
  IRVC21412  Polypodium californicum A. S. Boughey 1969-3-18 s.n. Orange Ortega Highway; 2mi E of San Juan Guard Station. Southern Coastal Comment
  CAS-BOT-BC232960  Polypogon australis Carl B. Wolf 1932-6-13 3723 Orange Fullerton, Malvern and Nicholas Avenues 53 Comment
  RSA696613  Polypogon interruptus Rankin s.n. Orange Irvine Park Comment
  CDA26007  Polypogon monspeliensis Mark A. Elvin, B. S. Nerhus 2006-11-4 5247 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  IRVC21785  Polypogon monspeliensis Fred M. Roberts 1985-2-25 1456 Orange Irvine: Irvine Ranch; east of MacArthur Blvd., 1.2km W UCI campus; 1.7km SE Bay View School. Southern Coastal 24 Comment
  RSA697712  Polypogon monspeliensis J. Russell Bruff 1930-10-19 s.n. Orange Santa Ana River bed. Comment
  UCR100453  Polypogon monspeliensis B. G. Pitzer 1996-4-30 2773 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR99548  Polypogon monspeliensis B. G. Pitzer 1996-4-30 2799 B Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA91997  Polypogon monspeliensis F. W. Peirson 1924-5-31 4649 Orange Laguna Canyon near Laguna Beach. 107 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
  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
  SEINET6654152  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2007-6-12 07 -253 Orange City of San Juan Capistrano, vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek.; 0 152 Comment
  UCR113446  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr., Adrian Wolf 2000-6-24 20- 116 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, Fremont Canyon, N. of Santiago Creek & immediately N. of major stream fork 305 Comment
  UCR119292  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2000-3-26 20- 151 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Fremont Canyon, north of major stream fork along west channel drainage 335 Comment
  UCR195011  Populus balsamifera subsp. trichocarpa A. C. Sanders, Fred M. Roberts 2008-8-7 35974 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  UCR51476  Populus balsamifera subsp. trichocarpa S. J. Myers 1987-9-9 s.n. Orange San Juan Capistrano, immediately east of San Juan Creek and 0.25 mi. north of Hwy 1, just north of existing sewage treatment plant 9 Comment
  RSA0013971  Populus fremontii subsp. fremontii Fred M. Roberts 2008-5-20 6991 Orange Lomas de Santiago: Santiago Creek wash north of Hanging Man's Tree Road near confluence of Pancho Cyn., 1.6 km NW Bolero Lookout. Irvine Ranch Conservancy. 349 Comment
  CLARK-A1528-4065  Populus trichocarpa Alfred R. Roos 1936-2-9 1535 Orange Santa Ana Canyon Comment
  RSA599636  Populus trichocarpa Fred M. Roberts Jr., P. Barrett, Gina Schultz 1995-7-25 4965 Orange San Juan Capistrano: San Juan Creek, 0.1 km SW La Novia Street bridge. 27 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
  POM266317  Porophyllum gracile J. C. Roos 1937-5-10 2337 Orange East of San Juan Capistrano. Comment
  RSA488122  Porophyllum gracile Karlin G. Marsh 1984-2-15 1188 Orange Santa Ana Mtns: Casper's Regional Park, Rancho Carrillo Road, 4.4km NE visitor Center, 0.5km ENE Lucas Survey Mark, alt 415m 415 Comment
  RSA562731  Porophyllum gracile Steve Boyd, Timothy S. Ross 1992-5-19 7447 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  RSA753486  Portulaca oleracea A. C. Sanders, Fred M. Roberts 2008-9-18 36071 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  CAS-BOT-BC452122  Potamogeton crispus John Thomas Howell 1928-9-6 4079 A Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  JEPS47201  Potentilla anserina subsp. pacifica Lawrence M. Booth 1932-6-28 1215 Orange Bolsas Creek Comment
  POM201867  Potentilla anserina var. grandis L. M. Booth 1932-6-28 1215 Orange Bolsas Marsh. Comment
  SD255271  Prunus avium Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49828 Orange Santa Ana Mountains: Trabuco Canyon, ca. 8 km east of Trabuco Oaks Comment
  POM358761  Pseudognaphalium biolettii M. B. Dunkle 1933-4-9 3282 Orange Dana Point. Comment
  RSA450841  Pseudognaphalium biolettii J. P. Anderson 1966-3-11 430 Orange San Joaquin Hills, along road to Signal Peak, above Lower Coyote Canyon Comment
  CAS-BOT-BC356662  Pseudognaphalium californicum A. M. White 1974-6-2 1417 Orange Ca. 20 mi. E. of Santa Ana, CA N. of Silverado Canyon Comment
  UCR119300  Pseudognaphalium canescens subsp. canescens R. E. Riefner Jr. 2000-8-8 20- 724 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  SBBG133602  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-9-11 07 -379 Orange vicinity of San Juan Crk Rd and Paseo Christina; San Juan Capistrano 34 Comment
  SD187362  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 55 Orange San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. 29 Comment
  UC2027329  Pseudognaphalium leucocephalum Robert Lee Allen 2012-8-11 Orange Santa Ana Mts, Caspers Wilderness Park, Bell Canyon. Comment
  SD133181  Pseudognaphalium microcephalum A. C. Sanders 1990-10-6 10194 Orange Newport Bay, North Star County Beach area on the southwest end of the bay; 2 km inland of Highway 1. 0 Comment
  JEPS20429  Pseudognaphalium stramineum L. M. Booth 1932-7-19 1275 Orange Bolsa Chica Comment
  JEPS34056  Pseudognaphalium stramineum Alice King 1908-4-1 Orange Santiago Creek Comment
  RSA659893  Pseudognaphalium stramineum Karl Price 1988-5-21 42 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  RSA617798  Psilocarphus brevissimus R. E. Riefner 1998-4-3 98 -252 Orange Newport back-bay, west of Jamboree Rd. Comment
  RSA799621  Psilocarphus brevissimus var. brevissimus Justin M. Wood 2011-4-12 3653 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA599408  Psilocarphus tenellus R. E. Riefner 1997-4-15 97 -128 Orange San Clemente State Beach, south bluff area Comment
  RSA588710  Psilocarphus tenellus Fred M. Roberts 1990-5-22 4640 Orange Santa Ana Mountains; Upper Hot Springs canyon, just west of Falcon Group Camp, 1.9km ESE Los Pinos Peak. 994 Comment
  CAS-BOT-BC506648  Psilotum nudum R. E. Riefner, Jr. 2015-8-27 15 -357 Orange Cit of Newport Beach, N side of North Coast Hwy, E side of La Brea St. 31 Comment
  IRVC27016  Psilotum nudum A. C. Sanders, Mark A. Elvin 2003-11-9 27356 Orange Irvine: UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. Southern Coastal 15 Comment
  RSA790025  Psoralea macrostachya Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49564 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  SBBG1714  Pterostegia drymarioides H. and M. Dearing 1937-4-12 2834 Orange Santa Ana Cyn Comment
  UCSB43273  Pterostegia drymarioides Fletcher, Martin 1980-3-29 Orange 0.5 miles west of Drakes Beach. Comment
  RSA38191  Pulicaria hispanica P. A. Munz 1946-10-2 11554 Orange Santa Ana River Canyon, Rancho Santa Ana 122 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
  CDA7614  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange Santa Ana Canyon, 0.1 mile south of Riverside Freeway to Anaheim, ca. 2 miles west of the Riverside County line. 0 Comment
  RSA679099  Pulicaria paludosa Fred M. Roberts 2003-7-24 5964 ` Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  RSA683921  Pulicaria paludosa Scott D. White, Matt Carlton 2003-11-20 9863 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 24 Comment
  RSA718967  Pulicaria paludosa Fred M. Roberts, Robert L. Allen 2006-10-8 6413 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  UCR53764  Pulicaria paludosa Bonnie Busenberg, W. Wisura 1987-7-23 4170 Orange Newport Bay at junction of Back Bay Drive and San Joaquin Hills Road Comment
  UCSB52444  Pulicaria paludosa Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach; Upper Newport Backbay, near jct. of Back Bay Dr. and San Joaquin Hills Rd., 2.6 km. E Newport Harbor High School Comment
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Dec 12 2018
  RSA0041475  Pulicaria paludosa Fred M. Roberts, Robert L. Allen 1985-8-19 2163 Orange Mission Viejo: English Creek near confluence of Aliso Creek, 1.1km E E1 Toro Fire Station. 138 Comment
  RSA221064  Pyrus communis E. W. Lathrop 1966-4-18 6176 Orange Santa Ana Mountains, 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA697622  Quercus agrifolia Unspecified s.n. Orange Orange County park. Comment
  UCR131878  Quercus agrifolia J. Mallory, V. McCoy 1995-7-3 6454- 96 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. east of confluence with Santiago Canyon, on a W-facing slope. north of Irvine Lake 300 Comment
  IRVC24518  Quercus berberidifolia Fred M. Roberts, Gordon A. Marsh 1986-2-28 2632 Orange Mission Viejo: N of Oso Parkway; 4.2km NNE Saddleback Community College. Southern Coastal 200 Comment
  RSA588844  Quercus berberidifolia Fred M. Roberts 1989-11-7 4453 Orange Rancho Mission Viejo: TRW Lease Holding, ridge south of the confluence of Gabino and Blind Canyons, 5.0 km NE Clement Survey Market. 155 Comment
  RSA757984  Quercus berberidifolia Doug Goldman 2005-3-28 3167 Orange Above a culvert in the San Juan Canyon, to the west side of Route 74, about 0.25 miles southwest of the Riverside County Line. 409 Comment
  UCR119316  Quercus berberidifolia R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 454 Orange Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 473 Comment
  UCR241911  Quercus berberidifolia Fred M. Roberts 2012-5-10 7561 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  RSA679221  Quercus chrysolepis Fred M. Roberts 2003-6-25 5945 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA697628  Quercus chrysolepis Leo Miller 1938-3-26 s.n. Orange Near top of Saddleback Mt. Comment
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Apr 26 2014
  UCSB52402  Quercus cornelius-mulleri Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.; Long Cyn. along road 1.0 km. W Calif. 74; 2.3 km. SE Blue Jay Camp Ground 800 Comment
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Dec 6 2016
  IRVC24554  Quercus dumosa Fred M. Roberts 1987-8-6 3580 Orange San Joaquin Hills: Pelican Hill; E slope above Los Trancos Canyon; 0.4km ESE Pelican Hill survey mark. Southern Coastal 200 Comment
  RSA684302  Quercus engelmannii Fred M. Roberts, David E. Bramlet. 2003-3-13 5596 Orange Donna O'Neill Land Conservancy: Shady Cyn. tributary to Cristianitos Canyon, 1,200m NW Sycamore Gate and 914m W Cristianitos Rd. 177 Comment
  UCR98933  Quercus engelmannii J. E. Harrison 1996-10-17 500 Orange San Joaquin Hills, Upper Coyote Canyon, just north of Signal Peak and adjacent to south side of San Joaquin Hills Transportation Corridor (SR-73). 250 Comment
  CAS-BOT-BC105118  Quercus kelloggii J. K. Munhall; S. E. Gooden 1945-11-8 11511 Orange head of Horsethief Canyon 1143 Comment
  RSA697639  Quercus lobata Unspecified 1936-11 s.n. Orange Birch Park. Comment
  UCD46910  Quercus lobata James Trumbley 1980-1 1 Orange Crystal Cove State Park, ca. 1 mile inland, in Moro Canyon, a coastal canyon between Laguna Beach and Corona del Mar, Orange County, California. 30 Comment
  OBI82184  Quercus suber Unknown 2012-11-18 12 -555 Orange City of Irvine, San Joaquin Wildlife Sanctuary, South Loop Trail, N of San Diego Creek, W of Campus Drive 8 Comment
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Dec 12 2019
  SEINET7766843  Quercus wislizeni Unknown 1966-8-22 2389 Orange O'Neill State Park Comment
  RSA734146  Ranunculus californicus R. H. McArthur 1934-3-3 s.n. Orange Forks of laguna Canyon Comment
  RSA305  Ranunculus cymbalaria var. saximontanus J. T. Howell 1927-7-19 3769 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  IRVC1143  Raphanus sativus M. Cadnum 1965-4-1 Orange Knowell Pl. Costa Mesa Comment
  CDA3881  Reseda alba Johnson 1939-4-1 Orange Los Angeles - Garden Grove. 0 Comment
  UCR119298  Rhamnus californica subsp. californica R. E. Riefner Jr. 2000-8-3 20- 711 Orange Santa Ana Mountains, North Ranch Policy Plan Area, east of Main Divide Road and Windy Ridge 535 Comment
  LA207808  Rhamnus crocea subsp. ilicifolia W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  CAS-BOT-BC56030  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1841 Orange W. slope Santa Ana Mts., Trabuco Canyon, 1/2 mi. above Trabuco Oaks 457 Comment
  CHSC37638  Rhamnus ilicifolia T. B. Devine 1981-7-30 735 Orange Santiago Canyon Road, 1/4 mi W of its junction with Williams Canyon Road. 350 Comment
  POM201686  Rhamnus ilicifolia L. M. Booth 819 Orange Santa Ana Canyon Comment
  RSA5340  Rhamnus ilicifolia B. D. Stark 1933-1-4 4492 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA790661  Rhamnus ilicifolia Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49703 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SBBG52716  Rhamnus ilicifolia C. Davidson 1977-5-18 5620 Orange Bear Springs, Santa Ana Mtns 121 Comment
  UC1121848  Rhamnus ilicifolia H. E. Norton 1931-3-6 364 Orange Corona Quad. Comment
  POM9123  Rhamnus ilicifolia P. A. Munz, R. D. Harwood 1920-4-24 3765 Orange Sierra [Freemont] Canyon, Santa Ana Mts. 366 Comment
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Sep 17 2011
  SD247722  Rhamnus ilicifolia R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 497703 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  POM243761  Rhamnus tomentella subsp. cuspidata Percy C. Everett 1935-6-18 7217 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  POM246507  Rhamnus tomentella subsp. cuspidata Carl B. Wolf 1933-8-24 5391 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  RSA3178  Rhus integrifolia C. B. Wolf 1932-3-8 2685 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA451  Rhus integrifolia J. T. Howell 1927-6-16 147 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR230234  Rhus integrifolia Dick Newell, Don Millar 2011-3-22 092 Orange Peninsular Range; Santa Ana Mtns., entrance gate to Weir Canyon, 1/3 mile NW of Outdoor Education Center, 2.4 miles NW (309 deg. ) of Irvine Lake dam 173 Comment
  RSA0041474  Rhus integrifolia Fred M. Roberts, R. L. Allen 1985-8-19 2143 Orange Mission Viejo: ridge, 3.5km ENE E1 Toro Fire Station. 279 Comment
  UCR131883  Rhus laurina J. Mallory, V. McCoy 1995-7-3 6454- 83 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  CAS-BOT-BC167931  Rhus ovata C. B. Wolf 1931-3-6 1857 Orange 1 1/2 miles below Trabuco Camp Ground, Trabuco Canyon, west slope Santa Ana Mts. 548 Comment
  HSC3149  Rhus ovata S. M. Clapp 1966-4-10 30 Orange 4 mi. into Black Star Canyon 183 Comment
  IRVC84  Rhus ovata A. S. Boughey 128 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  POM212356  Rhus ovata C. B. Wolf 1931-3-6 1857 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  RSA701660  Rhus ovata Anonymous 1929-12-1 s.n. Orange Black Star Canyon Comment
  RSA0022442  Ribes amarum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49777 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CAS-BOT-BC93074  Ribes californicum var. hesperium Carl B. Wolf 1931-1-30 1825 Orange Claymine Canyon, Santa Ana Mountains. 457 Comment
  RSA1703  Ribes indecorum Carl B. Wolf 1931-3-6 1834 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA1336  Ribes malvaceum var. viridifolium E. R. Johnson 1929-3-12 1250 Orange Canyon West of Roundtop Rancho Santa Ana. 457 Comment
  RSA0018259  Ribes roezlii Carl B. Wolf 1933-8-24 5395 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  SD255195  Ribes roezlii R. F. Thorne, E. W. Lathrop 1977-5-18 49739 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  CAS-BOT-BC173737  Ribes speciosum Ira L. Wiggins 1966-2-25 20472 Orange Firestone Boy Scouts Reservation, in hills E. of Brea Comment
  RSA2066  Ribes speciosum Carl B. Wolf 1931-3-6 1863 Orange 1 mile north of mouth of Harding canyon, west slope of Santa Ana Mts. 305 Comment
  UC1127567  Ribes speciosum A. Lewis Mar 1934 332 Orange Santa Ana Canyon Corona Quadrangle Comment
  UCSB9363  Ribes speciosum Lloyd, Robert 1959-4-17 Orange 10 miles south of West Corona on the Oak Flats Fire Rd; Santa Ana Mt. Range 792 Comment
  UCD170896  Ricinus communis T. B. Salvato; Katie Kurtz 2006-10-15 1918 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue. 6 Comment
  LA46159  Romneya coulteri P. C. Everett; 1936-9-19 8270 Orange Silverado Canyon, in the vincity of forest service rd gate 761 Comment
  LA85195  Romneya coulteri O. H. Kappler; 1945-6-15 873 Orange Santa Ana Canyon Comment
  RSA267969  Romneya coulteri E. W. Lathrop 1977-6-16 7654 Orange Silverado Canyon. Santa Ana Mts. Cleveland National Forest, Trabuco District. 366 Comment
  RSA446208  Romneya coulteri M. B. Dunkle 1933-5-30 3573 Orange Santa Ana River Canyon Comment
  RSA739082  Romneya coulteri Keith E. Hoffmaster 1932-4-17 471 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  SD234972  Romneya coulteri A. C. Sanders, T. B. Salvato 2008-5-13 35373 Orange Peninsular Range, Santa Ana Mountains: Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence (El Toro 7.5' Q) 366 Comment
  UC1126495  Romneya coulteri H. E. Norton 1931-3-6 36 Orange Baker Canyon 609 Comment
  UC144803  Romneya coulteri Katharine Brandegee June 1910 Orange The Dumps Anaheim Comment
  UC186874  Romneya coulteri Samuel B. Parish Oct. 1880 393 Orange near Anaheim; Santa Ana Canyon Comment
  UCR240080  Romneya coulteri Dick Newell, Don Millar 2012-5-22 252 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hangmans Tree Rd. at Santiago Creek 350 Comment
  CAS-BOT-BC92180  Romneya coulteri var. coulteri Helen D. Geis 1902-5-1 s.n. Orange Santa Ana River Canon [Canyon]. Comment
  CAS-BOT-BC74421  Rorippa curvisiliqua P. A. Munz 1918-5-4 2208 Orange Laguna Lakes. Comment
  POM393  Rorippa curvisiliqua P. A. Munz 1918-5-4 2208 Orange Laguna Canyon. Comment
  JEPS53807  Rorippa nasturtium-aquaticum Alice King 1908-1 Orange Santa Ana Comment
  RSA734908  Rosa californica A. C. Sanders, Fred M. Roberts 2008-6-17 35481 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR16768  Rosa californica Dave Cerf 1971-5-2 s.n. Orange Orange Park Acres. Windes Dr. 0.5 mile SW of end of road 244 Comment
  RSA376  Rubus ursinus J. T. Howell 1927-7-6 280 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCSC000946  Rubus ursinus Peter Kamb 1948-6-19 1089 Orange Santa Ana Mts., Holy Jim Canyon 610 Comment
  POM306304  Rumex conglomeratus Henry J. Ramsey, Henry J. Ramsey 1938-6-5 1392 Orange Laguna Beach, Irvine Comment
  UC729653  Rumex conglomeratus Carl B. Wolf 1932-6-13 Orange Malvern and Nicholas Avenues Fullerton 53 Comment
  CAS-BOT-BC421796  Rumex conglomeratus Carl B. Wolf 1932-6-13 3718 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  JEPS39877  Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  RSA666107  Rumex crispus Fred M. Roberts, Michelle Lee 2001-6-18 5496 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 226 Comment
  RSA708232  Rumex crispus Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-4-10 6157 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  SEINET3823332 Image available Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  CAS-BOT-BC421599  Rumex crispus C. L. Hitchcock; C. V. Muhlick 1964-3-17 23072 Orange 8 miles e. of Yorba Linda, Santa Ana Canyon Comment
  RSA4502  Rumex hymenosepalus Carl B. Wolf 1932-3-15 2712 Orange 1 mi. W of Atwood, lower end of Santa Ana Canyon. 76 Comment
  RSA234530  Rumex maritimus James Henrickson 1970-7-25 5086 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grov-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. 1 Comment
  UCR107843  Rumex salicifolius Scott D. White 1998-3-24 6231 Orange Irvine. Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Av. and new freeway (Bonita Cyn) 37 Comment
  CAS-BOT-BC433862  Rumex salicifolius John Thomas Howell 1927-7-5 2654 Orange Near Horseshoe Bend, Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  IRVC15167  Rumohra adiantiformis Dorleene Van Gorden 1965-5-9 s.n. Orange Silverado Canyon. Peninsular Ranges, Santa Ana Mountains Comment
  CAS-BOT-BC454145  Ruppia maritima S. B. Parish; W. F. Parish 1882-10-1 1607 Orange Newport Bay Comment
  POM49171  Ruppia maritima I. M. Johnston 1924-7-10 s.n. Orange Mouth of Aliso Canyon Comment
  UCR141344  Sagina decumbens subsp. occidentalis Robert DeRuff 1997-1 440 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, bluff top south of San Joaquin Hills Road and N of Newporter Canyon 30 Comment
  SFV20020  Salicornia depressa A. Dittmer, S. Dark 2004-10-3 75 Orange Bolsa Chica wetlands. South side of public parking lot off Highway 1. Comment
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Feb 9 2020
  SFV20026  Salicornia pacifica A. Dittmer, S. Dark 2004-10-3 74 Orange Bolsa Chica wetlands. South side of public parking lot off Highway 1. Comment
  JEPS73722  Salicornia virginica L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2043 Orange n of Newport Beach (across U.S. Highway 101 from Huntington State Beach); Bolsas Marsh Comment
  RSA478898  Salicornia virginica F. R. Fosberg 1930-7-10 S 3983 Orange Anaheim Landing. [Los Angeles Co. on label] 1 Comment
  RSA478905  Salicornia virginica E. S. Spalding 1923-11-29 s.n. Orange Near Capistrano. 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
  POM177842  Salix exigua Marcus E. Jones 1930-3-3 26532 Orange Santa Ana Mountains. Comment
  RSA0042767  Salix exigua Fred M. Roberts 2012-7-18 7675 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  UC492440  Salix exigua var. hindsiana Carl B. Wolf 1932-7-7 3843 Orange near town of Los Alamitos (Rancho Santa Ana along ditch on Bixby Ave., 1 km. w of Hansen Rd., Bryant Ranch) 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
  POM182034  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA5308  Salix gooddingii B. D. Stark 1933-1-7 4509 Orange Rancho Santa Ana, river bottom below ranch houses. 122 Comment
  RSA587881  Salix gooddingii Fred M. Roberts 1990-5-8 4618 Orange Chino Hills: Soquel Canyon, c.a. 1.2 km NNW Gilman Peak. Comment
  SD146160  Salix gooddingii Andy C. Sanders 2000-4-19 23337 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St., saltmarsh 10 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
  UCR112096  Salix gooddingii A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23337 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
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Jun 19 2006
  UCR16418  Salix gooddingii J. S. Davis 1972-4-1 7 Orange Newport Beach. 3.2 mi N on Back Bay Road from corner of San Jaquin Hills Road. on back edge of turnout. 6 Comment
  UCR185530  Salix gooddingii Robert DeRuff 2001-4-10 s.n. Orange South Coast, Newport Back Bay, North Star Beach 3 Comment
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Jun 21 2008
  CAS-BOT-BC108201  Salix hindsiana John Harrington 1932-6-1 s.n. Orange San Juan Capistrano Comment
  RSA0034815  Salix hindsiana var. parishiana Marcus E. Jones 1930-3-3 s.n. Orange Santa Ana Mountains. Comment
  LA208700  Salix laevigata Carl Hedin; Joseph Ewan 1933-3-19 7686 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  RSA679094  Salix laevigata Fred M. Roberts 2003-7-24 5965 Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  RSA735352  Salix laevigata R. H. McArthur 1934-2-10 s.n. Orange Santiago Canyon above Modjeska 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
  UCR138398  Salix laevigata Scott D. White, Brian Leatherman 1997-6-12 5323 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  UCR174189  Salix laevigata A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33015 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR195007  Salix laevigata A. C. Sanders, Fred M. Roberts 2008-8-7 35984 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  RSA0071937  Salix laevigata CNPS Accuracy Assessment Team 2014-4-28 898 .2 Orange Black Star Canyon. Comment
  POM210857  Salix lasiolepis L. M. Booth 1932-12-31 1384 Orange Newport Bay. Comment
  POM362784  Salix lasiolepis Louis C. Wheeler 1934-1-14 2365 Orange Aliso Creek near Laguna. 76 Comment
  UCR102629  Salix lasiolepis B. G. Pitzer 1997-4-15 3152 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  UCR103156  Salix lasiolepis Scott D. White 1997-3-26 4817 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  UCR26634  Salix lasiolepis E. W. Lathrop 1966-3-23 6101 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  RSA0071935  Salix lasiolepis CNPS Accuracy Assessment Team 2014-4-28 898 .1 Orange Black Star Canyon. Comment
  RSA92623  Salix lasiolepis F. W. Peirson 1924-2-9 4521 Orange Between Wintersberg and the sea. Comment
  UCR179757  Salix lucida subsp. lasiandra R. E. Riefner Jr. 2006-10-4 06- 475 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lake Forest, Aliso Creek near Portola Parkway at El Toro Rd. 225 Comment
  CAS-BOT-BC126310  Salix sessilifolia Helen D. Geis 1902-1-1 554 Orange Santa Ana River Comment
  CAS-BOT-BC403759  Salpichroa origanifolia E. L. Paddock 1943-5-19 12747 Orange 1 mile east of Brea Comment
  IRVC29830  Salsola tragus Tom McCrainie, Mark A. Elvin 2006-9-23 4 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  IRVC418  Salsola tragus A. Adams 1965-5-2 Orange Newport Beach, Corona del Mar, Little Corona Beach. Southern Coastal Comment
  CDA3225  Salsola tragus Patrick, Mackessy 1957-6-27 Orange Santa Ana River. 0 Comment
  RSA723482  Salsola tragus R. E. Riefner 2007-1-20 7 -16 Orange City of Lake Forest, along Bake Pwky. at Dimension Rd. 217 Comment
  RSA728668  Salsola tragus R. E. Riefner 2006-10-19 6 -558 Orange City of Newport Beach, Irvine Coast Trail at San Diego Creek, near SR-73 crossing, S of Jamboree Rd. 3 Comment
  UC1124781  Salvia A. Lewis Apr 1934 392 Orange San Joaquin Hills; Corona Quad. 213 Comment
  RSA542479  Salvia apiana Fred M. Roberts 1988-5-13 3972 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  RSA697874  Salvia apiana L. C. Hull 1934-4-27 s.n. Orange Trabuco Canyon. Comment
  RSA0006683  Salvia apiana J. T. Howell 1927-6-1 5 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA733974  Salvia columbariae Keith E. Hoffmaster 1927-4-8 423 Orange Santa Ana Mountains. Comment
  RSA747699  Salvia columbariae Fred M. Roberts 2008-4-16 6912 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8 km W Marine Institute, Dana Point Harbor. 60 Comment
  UCLA70172  Salvia columbariae W. E. Pequegnat 1937-9-7 101 Orange Santiago Peak; Santa Ana Mts. Comment
  RSA649076  Salvia columbariae var. columbariae Karl Price 1988-4-29 25 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  SD72780  Salvia leucophylla F. R. Fosberg 1931-6-19 S 5157 Orange Carbon Canyon, Puente Hills. Comment
  UCR3192  Salvia leucophylla Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  UCSB50643  Salvia leucophylla Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills; Carbon Canyon, Carbon Canyon Rd; 0.6km by road SW county line; 2.3km NNW Gilman Peak 250 Comment
  CAS-BOT-BC229981  Salvia mellifera A. M. White 1974-6-1 1384 Orange Ca 20 mi. E. of Santa Ana N. of Silverado Canyon Comment
  IRVC26683  Salvia sonomensis Mark A. Elvin 2004-4-4 3217 Orange UCI Arboretum Southern Coastal 15 Comment
  CSUSB696  Sambucus mexicana Cesareo Perez 1971-5-4 Orange South Mesa Drive and Lemon Street in Villa Park Comment
  UCR159777  Sambucus mexicana Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; along marsh road 6 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
  SFV16186  Sambucus nigra subsp. caerulea R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 41 Orange Newport Beach, west side of Upper Newport Bay adjacent to Santa Ana Delhi channel. About 100 m west of footbridge. Comment
  UCSB48089  Sambucus nigra subsp. caerulea Roberts, Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.7 km. N Crown Valley Parkway 49 Comment
  UCD127918  Sanicula arguta P. B. Kennedy 1924-2-5 s.n. Orange Irvine Range near Santa Ana. Comment
  UCR191448  Sanicula arguta A. C. Sanders, Fred M. Roberts 2008-4-8 34760 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UCD127973  Sanicula crassicaulis P. B. Kennedy 1925-1-12 s.n. Orange Irvine Range. Comment
  SD232219  Sarcocornia pacifica Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1101 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Statiion, across access road from Nature Center (Bldg 226). 3 Comment
  SD37460  Sarcocornia pacifica Edith A. Purer 1932-8-31 4876 Orange Moist location on sand dunes. Comment
  RSA749467  Saxifraga californica Fred M. Roberts 1999-4-22 5187 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.8 km SE Silverado Sch. and 2.3 km NNW Bolero Lookout. 396 Comment
  UCR217463  Schinus terebinthifolius Mark A. Elvin 2003-2-23 2310 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  IRVC20382  Schismus barbatus Fred M. Roberts 1983-3-16 910 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  UCSB48076  Schismus barbatus Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N Dana Hills High School; 1.9 km. W Marco Forster Junior High School 100 Comment
  CHSC35482  Schoenoplectus californicus Thomas Eakle 1971-5-28 145 Orange Ca. 2 mi. NE of Newport at Newport Bay saltmarsh. Comment
  RSA793256  Schoenoplectus californicus Robert F. Thorne 1984-1 s.n. Orange Newport Back Bay Comment
  POM1398  Schoenoplectus maritimus C. B. Bradshaw s.n. Orange Laguna region: alkali lake. Comment
  POM202158  Schoenoplectus maritimus L. M. Booth 1932-5-24 1105 Orange Marsh of salt marsh, Newport Lagoon. Comment
  RSA639848  Schoenoplectus maritimus Sandy Leatherman 1998-9-3 48 Orange Dana Point: Monarch Beach, northeast fo the intersection of State Highway 1 and Crown Valley Parkway, and west of Salt Creek. 30 Comment
  IRVC29727  Scirpus americanus Mark A. Elvin, Barry S. Nerhus 2006-11-4 5258 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA703733  Scirpus microcarpus Fred M. Roberts, David E. Bramlet 2004-11-5 6131 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Gato Cyn., tributary to Cristianitos Cyn., 0.23km W Gato Gate. 102 Comment
  CAS-BOT-BC414243  Searsia lancea R. E. Riefner, Jr. 2014-11-21 14 -391 Orange City of Lake Forest, English Canyon, Aliso Creek, vicinity of Cherry Ave. and Fernbank Ave. 145 Comment
  UCD170928  Sechium edule D. E. Bramlet 2005-10-13 3916 Orange South Coast: end of Kline Drive, 650 ft south of Orchard Drive in Santa Ana Heights; 2600 ft SW of the S end of John Wayne Airport. 15 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
  RSA631395  Selaginella bigelovii Valerie Sosa, LeRoy Gross 1999-6-7 476 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  SEINET3864015 Image available Selaginella bigelovii J. T. Howell 1927-7-22 s.n. Orange Claymine Canyon, Santa Ana Mts.; 0 183 Comment
  SFV17365  Selaginella bigelovii J. N. Hogue, J. D. Dilley, D. L. Bishop 1998-4-9 104 .4 Orange Santa Ana Mountains San Juan Canyon, 0.5 miles southwest of Lower San Juan Picnic Area at highway marker 14. 366 Comment
  RSA450849  Senecio aphanactis Karlin G. Marsh 1978-3-16 s.n. Orange UCI Ecological Preserve: Hill #1 52 Comment
  UCSB52921  Senecio aphanactis Roberts, Fred 1983-3-10 Orange Dana Point Headlands: north of Scenic Dr., 0.5 km W Dana Point Harbor; 0.7km SSW Richard Henry Dana School 79 Comment
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Dec 12 2018
  JEPS88922  Senecio californicus Rimo Bacigalupi and P. C. Hutchison 1962-3-16 8236 Orange 2 mi n Doheny Beach State Park (just off Highway 101) Comment
  RSA542662  Senecio californicus Bill O'Connell 1991-5-31 4 Orange San Joaquin Hills: Pelican Hill, west side 190 Comment
  RSA749849  Senecio californicus D. Bramlet, Jim Harrison 2008-4-3 4148 Orange South Bee Canyon, Bowerman landfill site. 1.2 km S of the Bee Cyn. access road, and 122 m W of the active landfill. Comment
  SEINET7067533  Senecio flaccidus A. G. Vestal 1947-6-12 s.n. Orange Santiago Creek Valley north of Santa Ana. Coordinate datum: NAD27. UTM Zone 11, 418529mE, 373676mN. Comment
  RSA0124181  Senecio flaccidus var. douglasii M. B. Dunkle 1934-3-18 3973 Orange Upper San Juan Canyon. 610 Comment
  RSA641384  Senecio linearifolius Scott D. White 1998-6-26 6783 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  RSA702682  Senecio linearifolius Scott D. White, Michael Honer 2004-5-17 10401 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  SD218294  Senecio lineatus Mark A. Elvin 2003-8-24 3011 Orange San Joaquin Hills, Irvine, UCI, 100m north of the intersection of Shady Canyon Drive and Bonita Canyon Road. 71 Comment
  CAS-BOT-BC364599  Senecio vulgaris Carl B. Wolf 1932-6-28 3766 Orange Bryant Ranch, along Western half of North boundary of 40 acre Valencia Orange Grove; Bryant Ave. & Hansen Rd. Comment
  RSA936  Senecio vulgaris J. T. Howell 1928-2-7 829 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  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
  IRVC24099  Senna multiglandulosa Fred M. Roberts, R. L. Allen 1985-9-3 2201 Orange Lower San Juan Canyon, Hwy 74, c.a. 14.4km NE San Juan Capistrano by road, Casper's Regional Park 184 Comment
  IRVC1826  Setaria lutescens J. B. Anderson 1966-5-2 621 Orange Santa Ana: along Newport Freeway at 17th Street. Southern Coastal Comment
  RSA88053  Sidalcea neomexicana subsp. thurberi C. L. Hitchcock 1952-5-30 s.n. Orange About 100 yards north of Katella Ave. to west of Hanson St., about 11 miles east of Long Beach Comment
  SEINET6947338  Sidalcea sparsifolia W. P. Vestal, A. G. Vestal 1955-3-24 3453 Orange Trabuco Canyon, 5 miles east of El Toro. Comment
  RSA539415  Silene antirrhina Fred M. Roberts, Carol A. Roberts 1988-6-9 4088 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, south slope. 0.4km SW summit. 1518 Comment
  RSA680737  Silene antirrhina Scott D. White 2003-3-21 8819 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 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
  UCR191021  Silene antirrhina A. C. Sanders, Fred M. Roberts 2008-4-22 35011 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  RSA763518  Silene californica Doris Bowers 1965-5-10 167 Orange Near California State Forestry Office, Orange 152 Comment
  JEPS50925  Silene gallica L. M. Booth 1932-5-12 1016 Orange Newport Bay Comment
  UCR102033  Silene gallica B. G. Pitzer 1997-3-25 3012 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR281559  Silene gallica Mitch Provance, Jeremiah George 2017-3-20 317- 112 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  UCSB50630  Silene laciniata subsp. laciniata Roberts, Fred 1982-7-20 Orange Santa Ana Mtns.; Main Divide Extension, 3.0 km. by road NE Falcon Group camp; 3.4 km. E Los Pinos Peak 1027 Comment
  POM422  Silene laciniata subsp. major P. A. Munz 1918-5-4 2200 Orange Laguna Beach Comment
  SD245326  Silene laciniata subsp. major Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49595 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA708224  Silene lemmonii Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6217 Orange Main Divide Road, ridge between Silverado and Bixby Canyons, coastal slope, 0.46km (air) S Bald Peak. 1203 Comment
  UC1178641  Silene lemmonii Peter Kamb 1948-6-19 1113 Orange se slope of Santiago Peak Santa Ana Mts., se slope of Santiago Peak (Santa Ana Mts., Orange-Riverside Counties) 1219 Comment
  IRVC15152  Silene multinervia A. S. Boughey 1968-4-23 208 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  RSA599645  Silene multinervia Fred M. Roberts, Carol A. Roberts, Kirsten Winter 1995-5-6 4940 Orange Ridge between Hot Springs Canyon and Viejo Canyon, San Juan Trail, 3.4 km WNW Lower San Picnic ground. 549 Comment
  RSA734809  Silybum marianum A. C. Sanders, Fred M. Roberts 2008-5-6 35269 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 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
  HSC7000  Sisymbrium officinale S. M. Clapp 1966-4-7 28 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  RSA732236  Sisymbrium officinale A. C. Sanders, Fred M. Roberts 2008-4-22 35047 Orange Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado. 457 Comment
  SD247619  Sisymbrium officinale R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49359 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] Comment
  IRVC1190  Sisymbrium orientale D. Frees 1965-3-27 Orange Newport Beach; East Bluffs. Southern Coastal Comment
  IRVC26967  Sisyrinchium bellum Peter A. Bowler 2003-4-20 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  RSA336970  Sisyrinchium bellum N. C. Cooper 1944-6-4 1330 Orange San Juan Canyon. 152 Comment
  UCR256944  Sisyrinchium bellum Naomi Fraga 2009-5-11 2716 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  HSC13908  Sisyrinchium bellum J. J. Wagoner 1965-4-11 19 Orange 4 mi. N of Modjeska Canyon near Irvine Lake along the Irvine road 152 Comment
  IRVC18594  Sitanion jubatum Karlin G. Marsh 1980-8-13 s.nn. Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  RSA79906  Solanum americanum F. W. Peirson 1924-2-9 4523 Orange Between Wintersberg and the sea. Comment
  UCR154353  Solanum americanum Mark A. Elvin 2004-5-2 3415 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA232216  Solanum douglasii James Henrickson 1970-7-24 4998 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  UC933970  Solanum douglasii Elton F. Paddock 1951-7-22 411 Orange near San Diego County line (San Clemente State Beach, near picnic tables, near railroad tracks); San Clemente State Beach Comment
  UCR191213  Solanum douglasii A. C. Sanders 2008-4-29 35147 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR193021  Solanum douglasii A. C. Sanders, Mitch Provance 2008-5-20 35417 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR230228  Solanum douglasii Dick Newell, Don Millar 2011-3-15 081 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 219 Comment
  RSA23640  Solanum elaeagnifolium E. R. Johnson 1939-4-25 9500 Orange Santa Ana Canyon. Rancho Santa Ana , along Santa Fe R.R. tracks south of Exp. citrus plot. 122 Comment
  RSA2079  Solanum umbelliferum Carl B. Wolf 1931-3-6 1850 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
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Oct 25 2007
  RSA427453  Solanum umbelliferum E. Crow 1929-2-22 169 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  RSA0045318  Solanum xanti Pomeroy 1929-2-10 72 Orange Silverado Canyon. PR8. Comment
  SEINET12274872  Solanum xanti J. F. Bright, Wyman, C. 1933-1 8094 Orange in Santa Ana foothills Comment
  RSA699287  Solidago occidentalis J. R. Bruff 1930-10-19 s.n. Orange Santa Ana River bed. Comment
  CAS-BOT-BC364909  Solidago velutina subsp. californica Mrs. R. W. Summers 1887-8-1 s.n. Orange Attwoods [Atwood ?] Hill Comment
  IRVC19392  Sonchus oleraceus R. L. Allen 1983-2-12 A629 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  IRVC924  Sonchus oleraceus A. Adams 1965-5-2 Orange Newport Beach, Corona del Mar, Little Corona Beach. Southern Coastal Comment
  POM202167  Sonchus oleraceus L. M. Booth 1932-6-15 1193 Orange Marsh border East of Huntington Beach. Comment
  UC537022  Sonchus oleraceus Lawrence M. Booth 1932-5-12 1012 Orange Newport Bay Comment
  CAS-BOT-BC374659  Sonchus oleraceus Ira L. Wiggins 1966-3-5 20514 Orange Field about 1/2 mi. W. of El Toro Post Office, along Highway S-18 Comment
  CAS-BOT-BC374662  Sonchus oleraceus Ira L. Wiggins 1965-11-6 20334 Orange West side of Atwood Comment
  UCD136210  Sonchus oleraceus Ira L. Wiggins 1966-3-5 20514 Orange 1/2 mile W of El Toro P.O. along Highway S-18. Comment
  SEINET998621  Sorghum bicolor R. E. Riefner Jr. 2005-1 05 -710 Orange South Coast: Irvine, Irvine Blvd. at The Groves RD. (Tustin 7.5' Q) 84 Comment
  CDA26023  Sorghum halepense Mark A. Elvin 2007-6-16 s.n. Orange Southern Coastal; Irvine; San Diego Creek at Campus Drive, on bank in channel. Comment
  IRVC15382  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  IRVC24181  Sorghum halepense Fred M. Roberts 1985-9-17 2258 Orange Irvine; lot between Walnut Avenue, Harvard Avenue and Peter's Creek Channel. southern coastal 20 Comment
  CHSC26474  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2 1/2 miles NW of Huntington Beach along south channel of Inner Bolsa Bay, adjacent to Pacific Coast Hy. in Bolsa Chica Salt Marsh. 0 Comment
  UCSB36211  Spartina foliosa Ferren, Wayne 1980-8-27 Orange Tidal channel of Newport Backbay, W of Backbay Drive ca. 1.5 km NE of Rt. 1, Newport Beach Comment
  SD152845  Spartium junceum Steve Boyd, Tim Ross 1992-5-20 7459 Orange San Mateo Canyon Wilderness Area; western edge of the wilderness in Lucas Canyon. 305 Comment
  SEINET10630772  Spartium junceum Greg Gust, Leith Nye 2005-3-12 Gust 565 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UCR193583  Spartium junceum A. C. Sanders, T. B. Salvato 2008-5-13 35365 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  SD185179  Spergularia B. G. Pitzer 1996-4-30 2791 Orange Crystal Cove State Park. 14 Comment
  RSA0098429  Spergularia macrotheca var. leucantha R. E. Riefner 1996-3-28 96 -28 Orange San Clemente State Beach. Comment
  RSA292  Spergularia salina J. T. Howell 1927-6-17 161 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA0097293  Spergularia salina Keith E. Hoffmaster 1935-2-17 842 Orange Prob[ably] near Costa Mesa, at bluff by Santa Ana River. Comment
  RSA610223  Spergularia salina Fred M. Roberts, Julie Vanderwier 1997-4-29 5021 Orange Bolsa Chica Salt Marsh; (US Fish & Wildlife Service cell 17) west of old oil field, 0.8 km. S SE Chica Survey Mark. 0 Comment
  RSA0098709  Spergularia villosa L. M. Booth 1932-7-18 1266 A Orange Costa Mesa, inland from Newport Bay. 30 Comment
  CAS-BOT-BC236645  Sphenopholis obtusata Samuel B. Parish 1884-6-10 1640 Orange Banks of Santa Ana River Comment
  IRVC26736  Spiloxene scullyi Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3174 Orange UCI Arboretum Southern Coastal 15 Comment
  SEINET3109888  Sporobolus airoides Carl B. Wolf 1936-4-22 Orange Hansen Rd., near Cerritos Ave., E of Los Alamitos. 15 Comment
  CDA20477  Sporobolus indicus M. Sulsona 2004-5-19 PDR 1256361 Orange Southwestern California; Woodbury School in Garden Grove. 0 Comment
  RSA769613  Stachys E. W. Lathrop 1974-6-27 7410 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR231057  Stachys A. C. Sanders, Kent Beaman 2011-9-27 39913 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail, 3.4 km NNW (340 deg. ) of Santiago Peak 1088 Comment
  CAS-BOT-BC248292  Stachys ajugoides A. C. Sanders; Fred M. Roberts 2008-6-17 35488 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  SEINET9366755  Stachys ajugoides Unknown 2008-6-17 35488 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, West Loma Ridge Spur Road c. 1 km E of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 (Black Star Canyon 7.5' topo.) East-facing burned slope, former brush patch dominated by Rhus laurina, surrounded by grassland. Comment
  UCR140794  Stachys rigida Robin G. Marushia 2004-5-4 007 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  SBBG120829  Stachys rigida A. C. Sanders, F. M. Roberts, M. Balk 2006-7-20 33018 Orange San Juan Cyn, from lower San Juan Picnic Area to ca. 1 mi downstream, parallel to Hwy 74, near Riverside Co line 366 Comment
  RSA734666  Stachys rigida subsp. quercetorum A. C. Sanders, Fred M. Roberts 2008-6-17 35488 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff s Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261. 357 Comment
  SD245402  Stachys rigida subsp. quercetorum Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49583 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  UCR247897  Stachys rigida var. rigida Fred M. Roberts 2013-6-12 7797 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  RSA542590  Stebbinsoseris heterocarpa Fred M. Roberts, Karlin G. Marsh 1988-4-25 3934 Orange San Joaquin Hills: East flank Pelican Hill, 0.9 kilometer SE summit. 120 Comment
  IRVC22557  Stellaria media Fred M. Roberts 1985-5-1 1696 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  OBI5678  Stellaria media Carl B. Wolf 1931-3-6 1854 Orange Trabuco camp ground, Trabuco cyn, W slope of the Santa Ana Mts 610 Comment
  UCR247541  Stephanomeria cichoriacea Dick Newell, Judy Booth 2013-8-25 338 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd., 2.1 air miles due east of lower Maple Springs gate 832 Comment
  UCR73133  Stephanomeria diegensis Scott D. White 1992-9-23 850 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  CAS-BOT-BC375867  Stephanomeria virgata H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  UCR192631  Stipa lepida A. C. Sanders, Fred M. Roberts 2008-3-25 34523 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  HSC13368  Stipa pulchra C. L. Hitchcock, C. V. Muhlick 1964-3-17 23070 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  RSA0048676  Stipa pulchra Keith E. Hoffmaster 1935-3-17 551 Orange Near El Toro (Trabuco Road). Comment
  SEINET10603936  Stipa pulchra LeRoy R. Abrams 1903-4-18 Abrams 3269 Orange Trabuco canon, Capistrano. Comment
  POM1023  Stuckenia pectinata D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon Comment
  IRVC25397  Stylocline gnaphalioides Fred M. Roberts 1987-4-3 3340 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  RSA682596  Stylocline gnaphaloides Scott D. White, Amanda Duchardt 2003-3-27 8860 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  UCR26979  Styrax officinalis var. redivivus E. W. Lathrop 1966-4-18 s.n. Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  UCR58633  Styrax officinalis var. redivivus Reid Moran, D. Axelrod, Bob Smart 1975-7-18 22599 Orange Santa Ana Mtns., N slope of ridge, upper Trabuco Canyon 900 Comment
  CAS-BOT-BC438783  Suaeda esteroa R. E. Riefner, Jr. 2012-11-6 12 -533 Orange City of Newport Beach, Newport Bay, North Star Beach, near Newport Aquatic Center, White Cliffs Dr./ N. Star Ln. 2 Comment
  POM259484  Suaeda esteroa A. C. Keller 1938-7-25 s.n. Orange 1/4 mile west of Corona del Mar on Channel Beach Comment
  RSA232236  Suaeda esteroa James Henrickson 1970-7-25 5029 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along PCH 0 Comment
  RSA70019  Suaeda esteroa F. W. Peirson 1924-2-10 4535 Orange Balboa Beach, mainland near bridge