33.75250 33.85250 -117.66560 -117.56560 UC/JEPS: Consortium Search Results
Search Results — 1274 specimen records retrieved (1274 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC331638  Acer macrophyllum B. D. Stark 1930-2-21 1474 Riverside Hidden Canyon, near Corona, Santa Ana Mts. Comment
  RSA1333  Acer macrophyllum B. D. Stark 1930-2-21 1474 Riverside Hidden Canyon, near Corona, Santa Ana Mts. Comment
  RSA221045  Acer macrophyllum E. W. Lathrop 1968-5-8 6427 Riverside 3 miles SW of Corona, Hagador Canyon, Cleveland Nat'l Forest, Trabuco District. 274 Comment
  RSA603073  Acer macrophyllum Joseph A. Ewan 1933-3-19 10900 Riverside Tin Mine Canyon, Santa Ana Mountains. Comment
  UCR234158  Acer macrophyllum Dick Newell, Judy Booth 2012-3-25 234 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  RSA171080  Acourtia microcephala R. F. Thorne 1963-7-26 32855 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Cleveland National Forest. 732 Comment
  RSA171094  Acourtia microcephala R. F. Thorne 1963-7-26 32822 Riverside Santa Ana Mts., Cleveland National Forest, Trabuco District 305 Comment
  RSA220969  Acourtia microcephala E. W. Lathrop 1966-5-8 6507 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  UCR26997  Acourtia microcephala E. W. Lathrop 1966-5-17 6547 Riverside Santa Ana Mtns., Skyline Drive, 4 mi west of Corona between Tin Mine Canyon and Santiago Peak 610 Comment
  RSA792253  Adenostoma fasciculatum R. H. McArthur 1934-4-7 4 Orange Ladd Canyon. Comment
  UCR16482  Adenostoma fasciculatum K. T. Seng 1966-4-13 660413- 5 Riverside Santa Ana Mtns, NE slope of Santa Ana Mountain, end of Main Street, 4 mi. from downtown Corona 457 Comment
  UCR270746  Adenostoma fasciculatum T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8362 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  RSA5304  Adenostoma fasciculatum var. fasciculatum Carl B. Wolf 1932-12-19 1697 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA608234  Adenostoma fasciculatum var. fasciculatum Steve D. Boyd, Bart O'Brien 1998-1-13 10068 Riverside Santa Ana Mountains: north end of the range, ESE of Sierra Peak along Main Divide Road (3S04), ca. 0.6 mi from summit of peak on divide between Fresno and Fremont canyons. 915 Comment
  RSA608236  Adenostoma fasciculatum var. fasciculatum Steve D. Boyd, Bart O'Brien 1998-1-13 10070 Riverside Santa Ana Mountains: north end of the range, ESE of Sierra Peak along Main Divide Road (3S04), ca. 0.6 mi from summit of peak on divide between Fresno and Fremont canyons. 915 Comment
  RSA263774  Adiantum capillus-veneris R. Weatherby 1950-5-18 2965 Riverside Gypsum mine, Hagador canyon 487 Comment
  RSA588887  Adiantum capillus-veneris Fred M. Roberts 1990-6-4 4667 Orange Santa Ana Mts. Hall Canyon, 1.8 km NNW Mustand Spring at east edge of flying B Ranch. 421 Comment
  UCR264078  Adiantum capillus-veneris S. J. Myers, Vesta A. Myers, Bill Hopson 2015-1-2 1080 Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon, upper part of canyon, near Corona 732 Comment
  RSA543940  Adiantum jordanii Steve Boyd 1991-5-10 6218 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  RSA698477  Adiantum jordanii R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA783270  Adiantum jordanii J. D. Olmsted 1959-4-23 458 Riverside Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona 716 Comment
  UCR26953  Adiantum jordanii E. W. Lathrop 1966-5-8 6497 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  SBBG101679  Agoseris grandiflora S. Boyd with Mistretta 1991-5-9 6198 Orange crest of range at Oak Flat, SE of Sierra Pk, just W of Riverside County line 822 Comment
  UC1595640  Agoseris grandiflora Steve Boyd and Orlando Mistretta 1991-5-9 6198 Orange Santa Ana Mountains, crest of range at Oak Flat, SE of Sierra Peak, just W of Riverside County line. Comment
  RSA543967  Agoseris grandiflora var. grandiflora Steve Boyd, Orlando Mistretta 1991-5-9 6198 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA697070  Agoseris grandiflora var. grandiflora Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts Comment
  UCR215292  Allium haematochiton Fred M. Roberts, D. E. Bramlet 2008-5-13 6952 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  RSA162777  Allium peninsulare J. D. Olmsted 1959-4-30 512 Riverside Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. Irvine Res. Drainage Area. 793 Comment
  RSA162778  Allium praecox J. D. Olmsted 1959-4-17 404 Riverside Eagle T.T. 0.5 mile east of intersection with Main Divide T.T.; 10 miles SSW of Corona. Santa Ana Mountains, Santa Ana River Drainage Area 732 Comment
  RSA367119  Allium praecox E. Crow 1929-4-7 312 Riverside East end of Corona Skyline Drive, Santa Ana Mountains. Comment
  RSA783224  Allophyllum glutinosum J. D. Olmsted 1959-4-30 501 Riverside Foot of Spring Trail at Beacon Pines Ranch SW of Corona; 20 yards east of spring, Santa Ana River drainage 716 Comment
  RSA220966  Alnus rhombifolia E. W. Lathrop 1966-3-23 6100 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UC1543134  Alnus rhombifolia Donald G. Nelson 1938-12-26 Orange in creek bottom near Myers Ranch; Santa Ana Mountains, Black Star Canyon, Black Star Creek Comment
  UCR234157  Alnus rhombifolia Dick Newell, Judy Booth 2012-3-25 233 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  UCR26948  Alnus rhombifolia E. W. Lathrop 1966-3-23 6100 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  RSA160512  Amorpha californica J. D. Olmsted 1959-4-30 508 Riverside Near county line north of Hidden Ranch 100 yards NW of Rattlesnake rock on Black Star Canyon Road; 5 miles east of Irvine Reservoir. 732 Comment
  RSA220980  Amorpha californica E. W. Lathrop 1966-5-8 6454 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA263785  Amorpha californica R. Weatherby 1950-5-18 s.n Riverside Hagador 640 Comment
  RSA415297  Amorpha californica C. B. Wolf, E. R. Johnson 1933-11-3 5525 Orange Main Divide Motorway Bedford Peak Firebreak and Silverado Motorway. Comment
  RSA7640  Amorpha californica E. R. Johnson 1933-11-3 s.n Orange Bedford Peak Firebreak and Silverado Motorway at Main Divide. Comment
  RSA697897  Amorpha fruticosa Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA697898  Amorpha fruticosa R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  UCR168547  Amsinckia intermedia var. eastwoodiae P. A. Munz, R. D. Harwood 1920-2-28 3239 Riverside Peninsular Ranges; Santa Ana Mountains region, 3 miles southwest of Corona 305 Comment
  RSA519212  Anthemis cotula M. Lee Overholtzer 1962-6-20 271 Riverside 4 miles southwest of Corona at Las Barrancas on oak Street. Comment
  SBBG101795  Anthriscus caucalis S. Boyd 1991-5-10 6214 Riverside just N of mouth of Hagador Cyn at bottom of Skyline Drive 426 Comment
  SD215368  Anthriscus caucalis Steve Boyd 1991-5-10 6214 Riverside Santa Ana Mountains, base of the range, just north of mouth of Hagador Canyon at bottom of Skyline Drive, 427 Comment
  UCR270743  Anthriscus caucalis T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8377 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  UCR77709  Anthriscus caucalis Steve Boyd 1991-5-10 6214 Riverside Santa Ana Mtns, Base of range just north of mouth of Hagador Canyon, bottom Skyline Drive 459 Comment
  CLARK-A1528-839  Antirrhinum coulterianum Ruth Cooper 1968-4-21 Riverside Santa Ana Mountains Comment
  RSA221092  Antirrhinum kelloggii E. W. Lathrop 1966-3-23 6080 Riverside Skyline Drive, 4 mi. W of Corona, Tine Mine Canyon 305 Comment
  CHSC101739  Antirrhinum multiflorum R. E. Riefner Jr. 2008-7-21 08 -2248 Orange Irvine Ranch Reserve, North Irvine Ranch, middle Fremont Canyond, east slope along Black Star SCE Rd. UTM: 11S 0437874E 370552N. 717 Comment
Read comments
Dec 14 2012
  RSA221086  Antirrhinum nuttallianum subsp. nuttallianum E. W. Lathrop 1966-5-8 6494 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  UCD127240  Apium graveolens E. W. Lathrop 1966-5-8 6511 Riverside 3 miles southwest of Corona, Hagador Canyon, Cleveland National Forest, Trabuco District. 274 Comment
  RSA784313  Arctostaphylos J. D. Olmsted 1959-4-17 379 Riverside Tin Mine Can.-Santa Ana River drainage area. Beacon Pines Ranch. 10 mi SW of Corona on Skyline Drive at intersection with Black Star Canyon Road and Main Divide Motorway. 854 Comment
Read comments
Jun 2 2013
  GH350283  Arctostaphylos glandulosa R. F. Thorne & J. Olmsted 1963-7-26 32838 Unknown Tin Mine Canyon above Beek's Spring, Santa Ana Mts., Cleveland National Forest, Trabugo District Comment
  UCR6046  Arctostaphylos glandulosa Robert A. Clark 1966-3-19 031966- 08 Riverside Peninsular Range; Santa Ana Mtns, Skyline Drive 6 miles from entrance off Chase Ave., Corona 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
  CAS-BOT-BC23107  Arctostaphylos glandulosa subsp. glandulosa Robert F. Thorne; J. Olmsted 1963-7-26 32827 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1188 Comment
  CAS-BOT-BC402202  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49708 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  POM254919  Arctostaphylos glandulosa subsp. glandulosa W. Pequegnat 1940-6-19 s.n. Orange Head of West Ladd Canyon, Santa Ana Mts. Comment
  POM254923  Arctostaphylos glandulosa subsp. glandulosa W. Pequegnat 1940-6-19 s.n. Orange Main Divide Road, between Pleasants and Bedford Peaks. Santa Ana Mts. Comment
  POM367271  Arctostaphylos glandulosa subsp. glandulosa Christopher Davidson 1977-5-18 5602 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  RSA167744  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, John Olmsted 1963-7-26 32827 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA787500  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49708 Orange Northern Santa Ana Mountains: Sierra Peak 900 Comment
  UC1120175  Arctostaphylos glandulosa subsp. glandulosa A. Lewis 1934-3-4 307 Riverside Tin Mine Canyon Cleveland N.F., Corona Quadrangle Comment
  UC1137198  Arctostaphylos glandulosa subsp. glandulosa Willis E. Pequegnat 1940-6-18 Riverside Sierra Peak Cleveland National Forest, Corona Quadrangle, Santa Ana Mts. Comment
  UC1137202  Arctostaphylos glandulosa subsp. glandulosa Willis E. Pequegnat 1940-6-19 Riverside main divide road between Pleasants Peak and Bedford Peak; Cleveland National Forest, Corona Quadrangle, Santa Ana Mts. Comment
  POM254925  Arctostaphylos glandulosa subsp. zacaensis W. Pequegnat 1940-4-18 s.n. Riverside Sierra Peak, Santa Ana Mts. Comment
  RSA1542  Arctostaphylos glandulosa subsp. zacaensis E. R. Johnson 1929-4-11 1262 Orange Sierra Peak Trail. Comment
  RSA167732  Arctostaphylos glandulosa subsp. zacaensis R. F. Thorne, John Olmsted 1963-7-26 32838 Orange In Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mts., Cleveland National Forest. 854 Comment
Read comments
Apr 25 2011
  RSA220964  Arctostaphylos glandulosa subsp. zacaensis E. W. Lathrop 1966-3-23 6114 Riverside 4 miles west of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive. 1220 Comment
  RSA5358  Arctostaphylos glandulosa subsp. zacaensis C. B. Wolf, B. D. Stark 1932-12-19 4438 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive 762 Comment
  RSA608235  Arctostaphylos glandulosa subsp. zacaensis Steve Boyd, Bart O'Brien 1998-1-13 10069 Riverside Santa Ana Mountains: north end of the range, ESE of Sierra Peak along Main Divide Road (3S04), ca. 0.6 mi from summit of peak on divide between Fresno and Fremont canyons. 914 Comment
  UC1137197  Arctostaphylos glandulosa subsp. zacaensis Willis E. Pequegnat 1940-6-19 Orange head of West Ladd Canyon Cleveland National Forest, Corona Quadrangle, Santa Ana Mts. 914 Comment
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Apr 2 2014
  UC1137480  Arctostaphylos glandulosa subsp. zacaensis J. B. Spring 1931-3-18 26 Orange Black Star Canyon Corona Quadrangle (Plot #17, Corona #2) Comment
  UC1302404  Arctostaphylos glandulosa subsp. zacaensis Robert F. Thorne and John Olmstead 1963-7-26 32838 Orange in Tin Mine Canyon above Beek's Spring; Cleveland National Forest, Santa Ana Mts., Trabugo District 609 Comment
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Apr 25 2011
  CAS-BOT-BC24673  Arctostaphylos glauca C. B. Wolf 1932-2-11 2649 Riverside Santa Ana Mts., Hidden Canyon, 5 mi. w. of Corona, base of Skyline Drive. 405 Comment
  RSA1541  Arctostaphylos glauca B. D. Stark 1930-2-21 1472 Riverside Hidden Canyon, near Corona, Santa Ana Mts. Comment
  RSA167724  Arctostaphylos glauca R. F. Thorne 1963-7-26 32817 Riverside Santa Ana Mts., Cleveland National Forest, Trabuco District 305 Comment
  SBBG21961  Arctostaphylos glauca R. F. Thorne with J. Olmstead 1963-7-26 32817 Riverside Trabuco District, Cleveland Nat Forest 304 Comment
  SEINET3093969 Image available Arctostaphylos glauca Unknown 1968-2-15 sn Riverside Tin Mine Canyon, Santa Ana Mts. Comment
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Aug 3 2013
  UCR60640  Arctostaphylos glauca C. B. Wolf 1932-2-11 02649 Riverside Santa Ana Mtns, Hidden [Tin Mine] Canyon, 5 mi. west of Corona, base of Skyline Drive. 405 Comment
  POM367325  Arctostaphylos glauca var. glauca E. Crow 1929-4-7 322 Riverside Corona Skyline Drive, Santa Ana Mts. Comment
  POM367327  Arctostaphylos glauca var. glauca C. B. Wolf 1942-2-11 2649 Riverside Santa Ana Mountains, Hidden Canyon, 5mi. W. of Corona, base of Skyline Drive. 405 Comment
  RSA3120  Arctostaphylos glauca var. glauca C. B. Wolf 1932-2-11 2649 Riverside Hidden Canyon 5 mi. W. of Corona at base of Santa Ana Mts. 405 Comment
  RSA221051  Argemone munita subsp. robusta E. W. Lathrop 1966-5-8 6403 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  SD114886  Argemone munita subsp. robusta E. W. Lathrop 1979-8-14 7640 Riverside 3.0 miles southwest of Corona; Hagador Canyon, Cleveland National Forest, Trabuco District. 274 Comment
  UCR27108  Argemone munita subsp. robusta T. P. Krantz 1981-6-18 s.n. Orange Santa Ana Mtns, Main Divide Truck Trail near the head of the canyon Comment
  UCR215291  Aristida adscensionis Fred M. Roberts, D. E. Bramlet 2008-5-13 6953 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  RSA784531  Artemisia californica J. D. Olmsted 1959-2-23 266 Riverside Drainage area NE to Santa Ana River: 1 mi SW of olive grove on Oak flat fire rd. 4 mi S of Corona on Lincoln and Chase Dr. to wash then south. 457 Comment
  RSA263780  Asclepias eriocarpa Herman 1954-6-24 s.n. Riverside Corona Foothills; dry hills. Comment
  RSA263781  Asclepias eriocarpa Robert Harvey 1959-8-4 157 Riverside Tin Mine Canyon Calif. near Corona. 610 Comment
  UCR141452  Asclepias eriocarpa June Latting 1980-5-20 s.n. Riverside Peninsular Range, Santa Ana Mountains, Skyline Drive in Tin Mine Canyon, south of Sierra Peak 671 Comment
  RSA5  Aspidotis californica J. T. Howell 1927-7-3 257 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA698472  Aspidotis californica Jeanne Paxton 1934-4-16 s.n. Riverside Hagador Canyon Comment
  RSA562611  Aster radulinus Steve Boyd, Fred M. Roberts 1992-10-14 7715 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
  UCR79369  Aster radulinus Steve Boyd, Fred M. Roberts 1992-10-14 7715 Orange Northern Santa Ana Mountains, Oak Flats, head of Skyline Rd., near Riverside Co. line 800 Comment
  CAS-BOT-BC180453  Astragalus brauntonii B. D. Stark 1933-6-1 4997 Orange Santa Ana Mts., No. slopes of Sierra Peak Comment
  RSA6139  Astragalus brauntonii B. D. Stark 1933-06 4997 Orange Santa Ana Mountains, north slopes of Sierra Peak. [county unspecified] Comment
Read comments
Aug 9 2007
  RSA220982  Astragalus gambelianus E. W. Lathrop 1966-3-23 6102 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UCR26993  Astragalus gambelianus E. W. Lathrop 1966-3-23 6102 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  SD240841  Baccharis pilularis A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39928 Riverside Peninsular Range; Santa Ana Mtns.: near Sierra Peak on dirt road (Leonard Rd.) from Skyline Drive, c. 1/4 mile east of the Orange Co. line. Saddle on ridge. 883 Comment
  UCR231196  Baccharis pilularis A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39928 Riverside Peninsular Range; Santa Ana Mtns., near Sierra Peak on dirt road (Leonard Rd.) from Skyline Drive, c. 1/4 mile east of the Orange Co. line 884 Comment
  UCR270761  Baccharis pilularis T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8367 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  A386858  Baccharis salicifolia P. A. Munz & R. D. Harwood 1920-2-28 3245 Unknown 3 miles south-west of Corona 304 Comment
  POM8302  Baccharis salicifolia Philip A. Munz, R. D. Harwood 1920-2-28 3245 Riverside 3 mi SW of Corona. 305 Comment
  RSA308993  Baccharis salicifolia J. R. Shevock 1976-10-28 5354 Orange Saddle below the summit of Pleasants Peak off FS road 3S04, Santa Ana Mts, Cleveland National Forest 1220 Comment
  UCR270757  Baccharis salicifolia T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8371 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  RSA220990  Barbarea orthoceras E. W. Lathrop 1966-3-23 6118 Riverside 4 miles west of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive. 610 Comment
  CLARK-A1528-1648  Bebbia juncea John C. Roos 1995-6-19 Riverside Santa Ana Mountains Comment
  RSA1371  Bebbia juncea B. D. Stark 1930-2-21 1468 Riverside Hidden Canyon, near Corona, Santa Ana Mts. Comment
  RSA450419  Bebbia juncea J. C. Roos 1965-6-19 s.n. Riverside Skyline Drive, S of Corona Comment
  UCSB42271  Bebbia juncea Roos, John 1965-6-19 Riverside Sky Line Drive, S of Corona, Santa Ana Mountains. Comment
Read comments
May 21 2011
  SEINET13297622 Image available Bloomeria crocea T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-1 8361 Riverside Santa Ana Mountains: unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway (Corona South 7.5' Q.) 424 Comment
  UCR271519  Bloomeria crocea T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8361 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  RSA129300  Bothriochloa barbinodis A. Lewis 1934-04 375 Riverside Tin Mine Canyon. 457 Comment
  RSA262062  Bothriochloa barbinodis E. W. Lathrop 1966-3-23 6086 Riverside 4 miles west of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive. Comment
  UC577595  Bothriochloa barbinodis A. Lewis Apr 1934 Riverside Tin Mine Canyon 457 Comment
  UC579636  Bothriochloa barbinodis A. Lewis Apr 1934 375 Riverside sw of Corona (Cleveland National Forest, Tin Mine Canyon); Cleveland National Forest, Tin Mine Canyon 457 Comment
  UCR26656  Bothriochloa barbinodis E. W. Lathrop 1966-3-23 6086 Riverside Peninsular Range; Santa Ana Mtns, Skyline Drive, 4 mi west of Corona between Tin Mine Canyon and Santiago Peak 610 Comment
  RSA783665  Brassica adpressa J. D. Olmsted 1959-8-26 847 Riverside Oat Flat along Main Divide Motorway between Sierra Peak and the old Sierra Peak Guard Station, Santa Ana Mtns towards Santiago Res. 823 Comment
  IRVC14742  Brassica geniculata A. S. Boughey 1968-4-23 214 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  UCR231190  Brickellia californica A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39945 Riverside Peninsular Range; Santa Ana Mountains, Skyline Drive on ridge between Mabey and Tin Mine Canyons, 1.8 mi. below Oak Flat, at side canyon (tributary to Mabey Cyn.) crossed by road 710 Comment
  LA102380  Brickellia desertorum John C. Roos; 1965-9-12 sn Riverside Santa Ana Mountains, Tin Mine Canyon, 3 mi. SW of Corona 548 Comment
  RSA444676  Brickellia desertorum J. C. Roos 1965-9-12 s.n. Riverside Tin Mine Canyon, 3 mi. SW of Corona. 549 Comment
  SD239574  Brickellia desertorum Fred M. Roberts, Robert L. Allen, Sandra Leatherman 2009-10-2 7166 Riverside Santa Ana Mountains: Ridge between Mabey and Tine Mine Cyns., 4.2 km by road above Forest Service gate, 2.9 km SE Sierra Peak. Northeast-facing slope, road cut and adjacent slope. 708 Comment
  UCR18574  Brickellia desertorum John C. Roos 1965-9-12 s.n. Riverside Santa Ana Mtns., Tin Mine Canyon, 3 mi SW of Corona 550 Comment
  UCR209329  Brickellia desertorum Fred M. Roberts, R. L. Allen, Sandra L. Leatherman 2009-10-2 7165 Riverside Santa Ana Mountains, ridge between Mabey and Tin Mine Canyons, 4.2 km by road above Forest Service gate, 2.9 km southeast of Sierra Peak 709 Comment
  UCR231199  Brickellia desertorum A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39946 Riverside Peninsular Range; Santa Ana Mountains, Skyline Drive on ridge between Mabey and Tin Mine Canyons, 1.8 mi. below Oak Flat, at side canyon (tributary to Mabey Cyn.) crossed by road 710 Comment
  LA102370  Brickellia nevinii John C. Roos; 1965-9-12 sn Riverside Santa Ana Mountains, Tin Mine Canyon, 3 mi. SW of Corona 548 Comment
  RSA444677  Brickellia nevinii J. C. Roos 1965-9-12 s.n. Riverside Tin Mine Canyon, 3 mi. SW of Corona. 549 Comment
  RSA561494  Brickellia nevinii Steve Boyd, K. A. Boyd 1992-7-9 7656 Orange Northern Santa Ana Mountains, Upper Tin Mine Canyon along Skyline Road, 1 mile below jct with Main Divide Road Comment
  RSA643100  Brickellia nevinii Orlando Mistretta 1992-8-31 s.n. Riverside Santa Ana Mountains; Sierra Peak; Cleveland National Forest. Astragalus brauntonii survey. 701 Comment
  UC1551954  Brickellia nevinii J. C. Roos 1965-9-12 Riverside 3 mi sw of Corona Tin Mine Canyon (Santa Ana Mountains); Santa Ana Mountains 548 Comment
  UCR18575  Brickellia nevinii John C. Roos 1965-9-12 s.n. Riverside Santa Ana Mtns., Tin Mine Canyon, 3 mi SW of Corona 550 Comment
  POM223245  Brodiaea jolonensis R. Cooper 1936-5-21 1 Riverside Skyline Road above Corona. Comment
  UC907536  Calamagrostis koelerioides Clark H. Gleason 1949-8-5 Orange near Hidden Ranch; Cleveland National Forest, Black Star Canyon Comment
Read comments
May 27 2008
  CAS-BOT-BC438494  Calandrinia ciliata Munz; Harwood 1920-2-28 3268 Riverside 2 mi S.W. of Corona 304 Comment
  POM8687  Calandrinia ciliata P. A. Munz, R. D. Harwood 1920-2-28 3268 Riverside 2 mi. southwest of Corona. 305 Comment
  RSA731005  Calocedrus decurrens Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6507 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  CAS-BOT-BC140073  Calochortus E. W. Lathrop 1966-3-23 6098 Orange 4 miles NE of Lake Irvine, Black Star Canyon, Cleveland Nat'l. Forest, Trabuco District Comment
  CLARK-A1528-3185  Calochortus albus John C. Roos 1960-5-30 Riverside Santa Ana Mountains Comment
  RSA162810  Calochortus albus J. D. Olmsted 1959-4-30 500 Riverside Beacon Pines Ranch; 9 miles SW of Corona, Santa Ana River Drainage Area. 808 Comment
  RSA444479  Calochortus albus J. C. Roos 1960-5-30 s.n. Riverside Ridge between heads of Bedford Canyon and East Fork Ladd Canyon 1220 Comment
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May 20 2011
  CAS-BOT-BC132257  Calochortus catalinae Philip A. Munz 1949-5-26 13379 Orange Head of Sierra Canyon, Santa Ana Mts. 731 Comment
  RSA162808  Calochortus catalinae J. D. Olmsted 1959-4-23 475 Orange Hidden Ranch in Black Star Canyon, 5 miles east of Irvine Reservoir. 640 Comment
  RSA220977  Calochortus catalinae E. W. Lathrop 1966-3-23 6098 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA48924  Calochortus catalinae Philip A. Munz 1949-5-26 13379 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA769608  Calochortus catalinae E. W. Lathrop 1966-5-23 6098 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  UCR27224  Calochortus catalinae E. W. Lathrop 1966-3-23 6098 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  RSA561495  Calochortus plummerae Steve Boyd, Kyle Boyd 1992-7-9 7655 Orange Northern Santa Ana Mountains, along the main crest of the range, north of Pleasants Peak and south of Oak Flat (aka Oat Flat), 1.5 miles south of junction of Main Divide and Skyline Roads. Comment
  RSA511062  Calochortus splendens Steve Myers 1989-5-4 s.n. Orange Head of Black Star Canyon, Santa Ana Mountains. 640 Comment
  RSA660540  Calochortus splendens Orlando Mistretta 1992-6-10 512 Riverside Cleveland National Forest: Along old road coming off 3504 W of Sierra Peak. Head of road. Comment
  RSA783290  Calochortus splendens J. D. Olmsted 1958-6-10 160 Riverside 8 miles SW of Corona on Oak Flat Fire Road (turn S in Corona from US [91?] onto Lincoln). Santiago Creek drainage area. 823 Comment
  RSA729799  Calochortus weedii Robert F. Thorne 1963-7-26 23839 Orange Tin Mine Canyon above Beeks Spring, Trabuco District, Cleveland National Forest 854 Comment
  CLARK-A1528-3201  Calochortus weedii var. intermedius John C. Roos 1962-6-30 Riverside Santa Ana Mountains Comment
  POM256722  Calochortus weedii var. intermedius W. Pequegnat 1940-6-18 s.n. Riverside Sierra Peak, Santa Ana Mountains. Comment
  RSA162804  Calochortus weedii var. intermedius John Olmsted 1958-6-10 156 Riverside 6.5 miles SW of Corona on Oak Flat fire road (Turn S in Corona from US onto Lincoln), lower Santa Ana River Drainage Area, Santa Ana Mountains. 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
  RSA674535  Calochortus weedii var. intermedius Scott D. White, Brian Leatherman 2000-6-1 7994 Riverside Steep slopes directly south of Oak Av. and Lincoln Av., just east of Hagador Cyn. 381 Comment
  RSA747278  Calochortus weedii var. intermedius Orlando Mistretta 1992-6-10 515 Riverside Cleveland National Forest: Along old road coming off 3504 W of Sierra Peak. Head of road. Comment
  SD181791  Calochortus weedii var. intermedius Scott D. White, Brian Leatherman 2000-6-1 7994 Riverside Corona Foothills: Steep slopes directly south of Oak Av. And Lincoln Av., just east of Hagador Canyon. 381 Comment
  UCR120739  Calochortus weedii var. intermedius D. E. Bramlet, Sandy Leatherman 2000-6-7 3062 Riverside Santa Ana Mtns., 762 m north of Tin Mine Canyon and 213 m SW of the intersection of Chase Road and Mangular Avenue in Corona 358 Comment
  UCR125563  Calochortus weedii var. intermedius Chris E. True 2003-6-18 s.n. Riverside Santa Ana Mountains, Cleveland National Forest. Hagador Canyon, Trabuco Ranger District, SW of the city of Corona 600 Comment
  UCR217564  Calochortus weedii var. intermedius Jeff B. Galvin 2008-6-13 69 Riverside Peninsular Ranges, Santa Ana Mountains, South of Sierra Peak along main access road. ~ 4km south of Prado Dam 908 Comment
  RSA162004  Calochortus weedii var. weedii J. D. Olmsted 1958-6-10 156 Orange 6.5 miles SW of Corona on Oak Flat fire road (turn S in Corona from US onto Lincoln) Comment
  RSA160439  Calycadenia tenella J. D. Olmsted 1959-5-1 527 Riverside Drainage area to Irvine Lake. Oat Flat at intersection of Skyline Dr. and Main Divide T.T.; 9 mi. SW of Corona 823 Comment
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Jun 8 2013
  UCR215290  Calyptridium monandrum Fred M. Roberts, D. E. Bramlet 2008-5-13 6954 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  RSA763057  Calystegia macrostegia subsp. arida E. W. Lathrop 1973-4-11 7405 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. Comment
  RSA263767  Calystegia macrostegia subsp. intermedia E. W. Lathrop 1968-5-17 6885 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. 1067 Comment
  RSA220961  Calystegia occidentalis subsp. fulcrata E. W. Lathrop 1966-5-8 6411 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA466972  Camissonia bistorta E. Crow 1929-4-7 311 Riverside Santa Ana Mountains, Corona Skyline Drive. Comment
  RSA660532  Camissonia hirtella Orlando Mistretta 1992-6-10 528 Riverside Peninsular Ranges: (Cleveland National Forest) Along old road coming off 3504 W of Sierra Peak. Head of road. Comment
  RSA162706  Cardamine californica var. integrifolia J. D. Olmsted 1959-4-23 469 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  CSUSB1297  Cassia tomentosa Joyce Davis 1965-3-31 Riverside Edge of orchard, about 10 feet from road on Chase Street between Buena Vista and Taylor Streets in Corona. 207 Comment
  RSA543970  Castilleja applegatei subsp. martinii Steve D. Boyd, Orlando Mistretta 1991-5-9 3201 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  UCR139396  Castilleja exserta P. A. Munz 1932-3-24 12016 Riverside Santa Ana River Valley/Santa Ana Mtns. Foothills, Corona 366 Comment
  RSA160582  Castilleja exserta subsp. exserta J. D. Olmsted 1959-4-17 395 Riverside 0.5 mile SW of Olive trees in mouth of Tin Mine Canyon along Skyline Drive; 5 mi. SW of Corona, Santa Ana Mountains 427 Comment
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Nov 19 2011
  UCSB9376  Castilleja exserta subsp. exserta Lloyd, Robert 1959-4-17 Orange Mt. Range Santa Ana; 10 mi S of W Corona; on the Oak Flats Fire Road 792 Comment
  HSC20518  Castilleja foliolosa S. M. Clapp 1966-4-10 31 Orange 4 mi. into Black Star Canyon 183 Comment
  RSA160447  Castilleja foliolosa John Olmsted 1958-6-10 154 Riverside six miles southwest of Corona on Oak Flat fire road (turn S in Corona from US onto Lincoln). 610 Comment
  RSA400599  Castilleja foliolosa E. Crow 1929-4-7 309 Riverside Santa Ana Mountains, Corona Skyline Drive. Comment
  RSA699995  Castilleja foliolosa R. H. McArthur 1934-4-7 s.n. Orange Ladd Canyon. Comment
  UCSB6029  Castilleja foliolosa Gill, Robert 1959-3-14 Riverside road to Black Star Cyn (Oak Flat); from Corona side; Santa Ana Mt. Range 365 Comment
  UCSB9374  Castilleja foliolosa Lloyd, Robert 1959-4-17 Riverside Santa Ana Mt Range; 4 1/4 mi S of W Corona; on the Oak Flats Fire Road 426 Comment
  RSA588889  Castilleja minor subsp. spiralis Fred M. Roberts Jr. 1990-6-4 4665 Orange Hall Canyon, 1.8 km NNW Mustang Spring at east edge of Flying B Ranch 421 Comment
  CAS-BOT-BC48453  Ceanothus crassifolius Carl B. Wolf 1932-2-11 2648 Riverside Santa Ana Mts., Hidden Canyon, 5 mi. west of Corona, base of Skyline Drive 405 Comment
  CAS-BOT-BC48454  Ceanothus crassifolius Carl B. Wolf 1932-2-11 2647 Riverside Santa Ana Mts., Hidden Canyon, 5 mi. west of Corona, base of Skyline Drive 405 Comment
  CAS-BOT-BC48496  Ceanothus crassifolius J. T. Howell 1929-1-24 1219 Orange Near crest of Santa Ana Mts., south of Sierra Peak 762 Comment
  CLARK-A1528-792  Ceanothus crassifolius I. Rauch 1968-2-15 Riverside Santa Ana Mountains Comment
  IRVC26891  Ceanothus crassifolius C. B. Wolf 1932-2-11 2648 Riverside Hidden [Tin Mine] Canyon, 5 mi. W of Corona, base of Skyline Drive. Santa Ana Mtns 405 Comment
  RSA1334  Ceanothus crassifolius Carl B. Wolf 1930-2-21 1473 Riverside Hidden Canyon, near Corona. Santa Ana Mts. Comment
  RSA1443  Ceanothus crassifolius J. T. Howell 1929-1-24 1219 Orange near crest of Santa Ana Mts. south of Sierra Peak. 762 Comment
  RSA1503  Ceanothus crassifolius B. D. Stark 1929-2-21 1606 Riverside Hidden Canyon, Santa Ana Mts. Comment
  RSA160402  Ceanothus crassifolius John Olmsted 1959-2-28 s.n. Riverside Turn S on Lincoln in w. Corona, after 3 mi turn w. on Chase Dr., then s. on Oak Flat fire road for 3 mi. past olive trees. 762 Comment
  RSA160403  Ceanothus crassifolius J. D. Olmsted 1959-4-17 409 Riverside At edge of main knobcone pine grove on NE ridge of Sugarloaf Pk. along Main Divide T.T. ssw of Corona. 1159 Comment
  RSA171009  Ceanothus crassifolius Robert F. Thorne 1963-7-26 32829 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA172250  Ceanothus crassifolius Robert F. Thorne 1963-7-26 32829 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA3118  Ceanothus crassifolius Carl B. Wolf 1932-2-11 2647 Riverside Hidden Canyon 5 mi. W. of Corona at base of Santa Ana Mts. 405 Comment
  RSA3119  Ceanothus crassifolius Carl B. Wolf 1932-2-11 2648 Riverside Hidden Canyon 5 mi. W. of Corona at base of Santa Ana Mts. 405 Comment
  RSA5284  Ceanothus crassifolius Carl B. Wolf 1932-12-19 4435 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA733938  Ceanothus crassifolius L. C. Hull 1934-2-11 s.n. Orange Black Star Canyon Rd. Comment
  RSA790452  Ceanothus crassifolius Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49698 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  SD27983  Ceanothus crassifolius Carl B. Wolf 1932-2-11 2648 Riverside Santa Ana Mts., Hidden Canyon, 5 Mi. west of Corona, base of Skyline Drive 405 Comment
  SD41968  Ceanothus crassifolius Darley F. Howe 1947-4-29 Orange Santa Ana Mts. Comment
  UC1071025  Ceanothus crassifolius A. Lewis 1934-3-4 310 Riverside Tin Mine Canyon Corona quad, Cleveland Nat. For. 670 Comment
  UC723782  Ceanothus crassifolius Joseph Andorfer Ewan 1933-3-19 10899 Riverside Tin Mine Canyon Santa Ana Mts. (along canyon bottom) Comment
  UCR124167  Ceanothus crassifolius June Latting 1978-5-4 s.n. Riverside Santa Ana Mountains, Sierra Peak 929 Comment
  UCR60641  Ceanothus crassifolius C. B. Wolf 1932-2-11 02648 Riverside Santa Ana Mtns, Hidden [Tin Mine] Canyon, 5 mi. west of Corona, base of Skyline Drive. 405 Comment
  UCSB3859  Ceanothus crassifolius Gill, Robert 1959-3-14 Riverside Road to Black Star Canyon 335 Comment
  RSA221091  Ceanothus integerrimus var. californicus E. W. Lathrop 1966-5-8 6416 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  UCR26627  Ceanothus integerrimus var. puberulus E. W. Lathrop 1966-5-8 6416 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  POM254866  Ceanothus megacarpus W. Pequegnat 1940-6-18 s.n. Riverside Santa Ana Mts. Sierra Peak. Comment
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Jun 10 2012
  IRVC28916  Ceanothus megacarpus var. megacarpus Fred M. Roberts, Carol A. Roberts 1988-5-12 3963 Orange Anaheim Hills; Upper Deer Cyn, 7.7km W Sierra Peak. Southern Coastal 268 Comment
  CAS-BOT-BC402197  Ceanothus oliganthus R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49699 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  POM254852  Ceanothus oliganthus W. Pequegnat 1940-6-16 s.n. Riverside Bedford Peak. Comment
  POM254864  Ceanothus oliganthus W. Pequegnat 1940-6-19 s.n. Riverside Hagador Canyon. 1220 Comment
  RSA160404  Ceanothus oliganthus J. D. Olmsted 1959-4-17 410 Riverside Skyline Drive 8 mi. SW of Corona. 793 Comment
  RSA221012  Ceanothus oliganthus E. W. Lathrop 1966-4-28 6221 Riverside 4 mi. west of Corona between Tin mine Canyon and Santiago Peak, Skyline Drive. Comment
  RSA3117  Ceanothus oliganthus Carl B. Wolf 1932-2-11 2646 Riverside Hidden Canyon 5 mi. W. of Corona at base of Santa Ana Mts. 405 Comment
  RSA398914  Ceanothus oliganthus E. Crow 1929-4-7 296 Riverside Santa Ana Mountains, Corona Skyline Drive. Comment
  RSA613299  Ceanothus oliganthus Joseph A. Ewan 1933-3-19 10898 Riverside Tin Mine Canyon, Santa Ana Mountains. Comment
  RSA790668  Ceanothus oliganthus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49701 Orange Northern Santa Ana Mountains: Sierra Peak. 900 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
  RSA398910  Ceanothus oliganthus var. oliganthus Christopher Davidson 1977-5-18 5599 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  UC1071165  Ceanothus oliganthus var. oliganthus R. St. John 1931-3-4 192 Riverside Tim Mine Canyon Corona quad. 609 Comment
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Jun 17 2013
  SBBG52715  Ceanothus oliganthus var. orcuttii C. Davidson 1977-5-18 5599 Orange Pleasant Pk, (on county line) Comment
  CAS-BOT-BC51706  Ceanothus papillosus B. D. Stark 1933-1-5 10030 Orange 2 mi. So. of summit of Skyline Drive along road to Santiago Peak, Santa Ana Mts. 1219 Comment
  CAS-BOT-BC51707  Ceanothus papillosus E. W. Lathrop 1976-11-1 7602 Orange Pleasant Peak, Main Divide truck trail, north slope 1219 Comment
  CAS-BOT-BC51847  Ceanothus papillosus Stark 1933-1-5 10029 Orange 2 mi. S. of summit of Skyline Dr. along rd. to Santiago peak, Santa Anna Mts. 1219 Comment
  RSA714663  Ceanothus papillosus Chris E. True, Robert Cox 2004-7-7 s.n. Riverside Santa Ana Mtns.: Main Divide Trail, 0.6 km NE of summit of Pleasants Peak. 1067 Comment
  SBBG119115  Ceanothus papillosus C. E. True with R. Cox 2004-7-7 Riverside Main Divide Trail, ca. 0.6 km NE of summit of Pleasants Pk 1067 Comment
  SBBG52714  Ceanothus papillosus C. Davidson 1977-5-18 5598 Orange Pleasant Pk, (on county line) 1219 Comment
  UC1005025  Ceanothus papillosus W. Pequegnat Riverside 7 mi s Sierra Peak (Santa Ana Mts.); , s of Sierra Peak 1158 Comment
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Nov 20 2010
  UC1071223  Ceanothus papillosus A. Lewis Mar 1934 355 Riverside Sugarloaf Peak Cleveland National Forest, Corona Quad. Comment
  UC2042146  Ceanothus papillosus R. F. Thorne and C. W. Tilforth, E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  UCR137061  Ceanothus papillosus Chris E. True, Robert Cox 2004-7-7 s.n. Riverside Santa Ana Mtns., Main Divide Trail, 0.6 km NE of summit of Pleasants Peak 1067 Comment
  UCR30503  Ceanothus papillosus R. J. Weatherby 1950-1 1365 Riverside Peninsular Range; Santa Ana Mtns., head of Hagador Canyon, Southwest of Corona 1159 Comment
  CLARK-A1528-3898  Ceanothus papillosus subsp. roweanus John C. Roos 1962-5-5 Orange Santa Ana Mountains Comment
  CLARK-A1528-3899  Ceanothus papillosus subsp. roweanus John C. Roos 1960-5-30 Orange Santa Ana Mountains 1066 Comment
  UCR18917  Ceanothus papillosus subsp. roweanus John C. Roos 1960-5-30 s.n. Riverside Peninsular Range/Santa Ana Mtns., ridge east of Sugarloaf [=Pleasants Peak] 1067 Comment
  CAS-BOT-BC402196  Ceanothus papillosus var. roweanus R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  HSC46608  Ceanothus papillosus var. roweanus Christopher Davidson 1977-5-18 5598 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line) 1220 Comment
  POM254871  Ceanothus papillosus var. roweanus W. Pequegnat s.n. Riverside 7 mi. south of Sierra Peak, on Main Divide Rd. 1159 Comment
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Nov 20 2010
  RSA160406  Ceanothus papillosus var. roweanus J. D. Olmsted 1959-4-17 413 Riverside At edge of main knobcone pine grove on NE ridge of Sugarloaf Pk. along Main Divide T.T. ssw of Corona. 1159 Comment
  RSA171010  Ceanothus papillosus var. roweanus Robert F. Thorne 1963-7-26 32832 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA25945  Ceanothus papillosus var. roweanus B. D. Stark 1933-1-5 10030 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  RSA399812  Ceanothus papillosus var. roweanus Christopher Davidson 1977-5-18 8898 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 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
  RSA790451  Ceanothus papillosus var. roweanus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  SD95148  Ceanothus papillosus var. roweanus Jack L. Reveal 1975-4-29 1718 Orange South Main Divide Road, head of main Street Canyon 1200 Comment
  UCD169753  Ceanothus papillosus var. roweanus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  SD41970  Ceanothus spinosus Darley F. Howe 1947-4-29 Orange Santa Ana Mts. Comment
  LA102309  Ceanothus tomentosus John C. Roos; 1950-5-6 4785 Riverside Santa Ana Mountains, at the head of Hagador Canyon, S of Corona Comment
  LA44949  Ceanothus tomentosus W. Pequegnat; 1939-8-11 35 Riverside Santa Ana Mountains, Sky line drive Comment
  RSA0050342  Ceanothus tomentosus W. Pequegnat 1940-6-18 s.n. Riverside Sierra Peak, Santa Ana Mountains. Comment
  UC1071422  Ceanothus tomentosus R. St. John 1931-3-4 193 Riverside Tin Mine Canyon 609 Comment
  UC1071429  Ceanothus tomentosus A. Lewis 1934-3-4 308 Riverside Tin Mine Canyon Cleveland National Forest, Corona Quad. Comment
  UC1595638  Ceanothus tomentosus Steve Boyd 1991-5-10 6209 Riverside Santa Ana Mountains, base range, just N of mouth of Hagador Canyon at bottom of Skyline Drive 426 Comment
  UCR115378  Ceanothus tomentosus June Latting 1978-5-4 s.n. Riverside Santa Ana Mountains, Sierra Peak 929 Comment
  UCR26625  Ceanothus tomentosus E. W. Lathrop 1966-3-23 6078 Riverside Peninsular Range; Santa Ana Mtns, Skyline Drive, 4 mi west of Corona between Tin Mine Canyon and Santiago Peak 610 Comment
  UCR271518  Ceanothus tomentosus T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8352 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  UCR5997  Ceanothus tomentosus Robert A. Clark 1966-3-19 031966- 09 Riverside Santa Ana Mtns, Sky Line Drive 4 miles from entrance off Chase Ave 762 Comment
  UCSB7051  Ceanothus tomentosus Lloyd, Robert 1959-4-17 Orange 10 miles south of West Corona on the Oak Flats Fire Road 792 Comment
  RSA398967  Ceanothus tomentosus subsp. olivaceus Julian P. Donahue 1983-4-3 s.n. Riverside Santa Ana Mts., Skyline Dr., southwest of Corona. El. 2900' 884 Comment
  RSA588778  Ceanothus tomentosus subsp. olivaceus Fred M. Roberts 1990-4-13 4559 Orange Upper Maybe Canyon near SkylineDrive 0.2 km NE Oak Flat, 2.7 km SSE Sierra Peak. 841 Comment
  RSA171020  Ceanothus tomentosus var. olivaceus Robert F. Thorne 1963-7-26 32837 Orange In Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mts., Cleveland National Forest. 854 Comment
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Apr 25 2011
  RSA221096  Ceanothus tomentosus var. olivaceus E. W. Lathrop 1966-3-23 6092 Riverside Santa Ana Mountains: Corona between Tin Mine Canyon and Santiago Peak, Skyline Drie. Comment
  RSA254869  Ceanothus tomentosus var. olivaceus W. Pequegnat 1940-6-18 s.n. Riverside Sierra Peak, Santa Ana Mountains. Comment
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Sep 16 2008
  RSA262094  Ceanothus tomentosus var. olivaceus E. W. Lathrop 1966-3-23 6078 Riverside Skyline Drive, 4 mi. W of Corona, Tine Mine Canyon 305 Comment
  RSA519202  Ceanothus tomentosus var. olivaceus E. Lee Overholtzer 1961-3-12 131 Riverside Santa Ana Mts. On skyline Drive 2 miles west from Kremer Ranch. Mouth of Tin Mine Canyon. Comment
  RSA5269  Ceanothus tomentosus var. olivaceus Carl B. Wolf, B. D. Stark 1932-12-19 4436 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA543977  Ceanothus tomentosus var. olivaceus Steve Boyd 1991-5-10 6209 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  RSA731001  Cedrus deodara Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6504 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  UCD130056  Centaurea melitensis E. W. Lathrop 1966-3-23 6518 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peakm Skyline Drive. 1219 Comment
  CAS-BOT-BC142123  Cercocarpus betuloides James R. Shevock 1978-4-26 5893 Orange On the divide road, FS 3S04, between Beeks Place and Sierra Peak - Santa Ana Mountains, Cleveland National Forest 1097 Comment
  RSA160536  Cercocarpus betuloides J. D. Olmsted 1959-4-12 372 Riverside From Hwy thru W Corona turn S for 1 miles on Lincoln, turn W for 1/2 miles on Chase, then S at wash on Oak Flat fire road for 2-3 miles, Santa Ana Mtns. N to Santa Ana River. 701 Comment
  RSA172271  Cercocarpus betuloides Robert F. Thorne 1963-7-26 32844 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Cleveland National Forest 854 Comment
  RSA220988  Cercocarpus betuloides E. W. Lathrop 1966-5-8 6432 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA5286  Cercocarpus betuloides Carl B. Wolf, B. D. Stark 1932-12-19 s.n. Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA660285  Cercocarpus betuloides Orlando Mistretta 1992-6-2 452 Orange Vicinity of Sierra Peak. (Historical Locality). On old roadcut heading down to power lines at 2280'. Comment
  UCR231186  Cercocarpus betuloides A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39938 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1125 Comment
  UCR270749  Cercocarpus betuloides T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8356 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  CAS-BOT-BC142124  Cercocarpus betuloides var. betuloides E. R. Johnson 1929-4-11 1261 Orange Sierra Peak Trail, Santa Ana Mts. Comment
  CAS-BOT-BC147687  Cercocarpus betuloides var. betuloides James R. Shevock 1978-4-26 5904 Riverside On the NE side of Pleasants Peak. Along FS road 3S04, Santa Ana Mountains, Cleveland National Forest 1188 Comment
  CAS-BOT-BC402200  Cercocarpus betuloides var. betuloides R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49704 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA787496  Cercocarpus betuloides var. betuloides Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49704 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UC1127912  Cercocarpus betuloides var. betuloides A. Lewis Mar 1934 319 Orange Bedford Peak, Cleveland National Forest Bedford Peak; Cleveland National Forest, Bedford Peak 1097 Comment
  RSA695494  Chaenactis glabriuscula Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts Comment
  RSA627499  Chamaesyce polycarpa var. polycarpa L. C. Wheeler 1965-6-27 8693 Riverside Tin Mine Canyon. Comment
  CDA4804  Chamaesyce prostrata L. C. Wheeler 1964-10-1 8634 Riverside 3030 Oak Ave. Corona 0 Comment
  RSA627498  Chamaesyce serpillifolia L. C. Wheeler 1965-6-27 8692 Riverside Corona: Overboltzer's Grove. Comment
  RSA638208  Chamaesyce serpillifolia L. C. Wheeler 1965-6-27 8690 Riverside Corona: Overboltzer's Grove. Comment
  POM12432  Cheilanthes covillei F. M. Reed 1917-6-3 3931 Riverside Main Street Canyon , South of Corona Comment
  UC42541  Cheilanthes newberryi Brewer 1861-1-30 148 Riverside Temescal Range Comment
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Jan 1 2015
  UCR26984  Chenopodium murale E. W. Lathrop 1966-5-8 6474 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  UCR10807  Chlorogalum pomeridianum Ruth Cooper 1968-5-18 s.n. Riverside Santa Ana Mtns., Tin Mine Canyon 488 Comment
  UCR27655  Chorizanthe staticoides John C. Roos 1960-6-5 s.n. Riverside Peninsular Range; Santa Ana Mtns., off the Ortega Hwy, NE slope of Sugarloaf Peak [=Pleasants Peak] 1067 Comment
  RSA759591  Cirsium occidentale R. Weatherby 1950-5-18 1385 Riverside Hagador Canyon. Santa Ana Mtns. 701 Comment
  UCD130643  Cirsium occidentale var. californicum E. W. Lathrop 1966-5-8 6453 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest, Trabuco District. 274 Comment
  RSA263657  Cirsium occidentale var. occidentale E. W. Lathrop 1977-4-13 7605 Riverside 4 miles West of Corona between Tin Mine and Santiago Peak, Skyline Drive. Coal canyon at the base of Sierra Peak in the Santa Ana Canyon. Comment
  CAS-BOT-BC162601  Clarkia E. W. Lathrop 1974-6-4 7401 Riverside 3 miles SW of Corona, Hagador Canyon, Cleveland Nat'l. Forest, Trabuco District - Santa Ana Mountains 274 Comment
  RSA769618  Clarkia E. W. Lathrop 1974-6-4 7401 Riverside 3 miles southwest of Corona, Cleveland National Forest, Trabuco District 274 Comment
  RSA783257  Clarkia J. D. Olmsted 1959-4-23 455 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  RSA221049  Clarkia bottae E. W. Lathrop 1966-5-17 6543 Riverside 4 mi. W of Corona, between Tin Mine Canyon and Santiago Peak. 610 Comment
  RSA262080  Clarkia bottae E. W. Lathrop 1966-5-8 6408 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  CLARK-A1528-641  Clarkia cylindrica I. Rauch 1968-5-14 Riverside Santa Ana River Comment
  UCR26959  Clarkia deflexa E. W. Lathrop 1966-5-8 6408 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  CAS-BOT-BC164316  Clarkia delicata Earl W. Lathrop 1989-5-10 s.n. Riverside Tin Mine Cyn. 4 miles SW Corona Comment
  UCR65511  Clarkia delicata E. W. Lathrop 1989-5-10 s.n. Riverside Santa Ana Mtns., Tin Mine Canyon, 4 mi. SW of Corona. Comment
  RSA162768  Clarkia dudleyana J. D. Olmsted 1959-4-30 510 Riverside Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona; Mt. Range: Santa Ana Mts; Drainage area: to Santa Ana River. Comment
  RSA505480  Clarkia dudleyana E. W. Lathrop 1989-5-10 s.n. Riverside 4 miles SW of Corona, West slope of Tin Mine Canyon. Comment
  UCR251871  Clarkia dudleyana M. A. Voeltz 2014-5-25 s.n. Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon near Corona, Cleveland National Forest, Trabuco Ranger District 403 Comment
  RSA511063  Clarkia purpurea subsp. purpurea S. J. Myers 1989-5-4 s.n. Orange Near Horsetrough Spring at the head of Black Star Canyon, Santa Ana Mountains. 640 Comment
  RSA220999  Clarkia rhomboidea E. W. Lathrop 1966-5-8 6407 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA519206  Claytonia parviflora subsp. parviflora M. Lee Overholtzer 1961-3-12 130 Riverside 6 miles south of Corona and 1 mile up Hagador Canyon. Comment
  CAS-BOT-BC402194  Clematis lasiantha R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49689 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA192753  Clematis lasiantha J. D. Olmsted 1959-4-12 367 Riverside W Corona; Chase Drive, turn right to wash, 2-3 mi. up wash road in Santa Ana Mountains. 762 Comment
  RSA221081  Clematis lasiantha E. W. Lathrop 1966-4-28 6220 Riverside 4 mi. west of Corona between Tin mine Canyon and Santiago Peak, Skyline Drive. 610 Comment
  RSA386223  Clematis lasiantha E. Crow 1929-4-7 292 Riverside East end of Corona Skyline Drive, Santa Ana Mountains. Comment
  RSA700034  Clematis lasiantha R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  UC1125960  Clematis lasiantha H. E. Norton 1931-3-3 32 Orange 1 mi. s. Sierra Peak; Corona Quad. Comment
  UC2042140  Clematis lasiantha R. F. Thorne and C. W. Tilforth, E. W. Lathrop 1977-4-27 49689 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  UCD169739  Clematis lasiantha R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49689 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  UCR234160  Clematis lasiantha Dick Newell, Judy Booth 2012-3-25 236 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  UCR5925  Clematis lasiantha K. T. Seng 1966-4-13 660413- 9 Riverside Santa Ana Mtns, NE slope of Santa Ana Mountain, end of Main Street, 4 mi. from downtown Corona 457 Comment
  UCSB9460  Clematis lasiantha Lloyd, Robert 1959-4-17 Riverside 4 miles south of West Corona on the Oak Flats Fire Road; Santa Ana Mt. Range 381 Comment
  A369701  Clematis pauciflora P. A. Munz & R. D. Harwood 1920-2-28 3264 Unknown 2 mi. S.W. of Corona 304 Comment
  CAS-BOT-BC92819  Clematis pauciflora Munz; Harwood 1920-2-28 3264 Riverside 2 miles southwest of Corona. Comment
  POM8679  Clematis pauciflora P. A. Munz, Harwood 1920-2-28 3264 Riverside 2 mi. southwest of Corona. 305 Comment
  RSA698567  Clematis pauciflora Minor Warne 1934-4-21 s.n. Orange Blackstar Canyon Laguna Canyon Forks. Comment
  RSA699997  Collinsia bicolor Jeanne Paxton 1934-4-15 s.n. Riverside Hagador Canyon Comment
  RSA160561  Corethrogyne filaginifolia J. D. Olmsted 1959-8-26 839 Riverside Oat Flat along Main Divide Motorway between Sierra Peak and the old Sierra Peak Guard Station, Santa Ana Mtns towards Santiago 823 Comment
  RSA697177  Cotyledon laxa Kenneth Beard 1934-05 s.n. Orange Ladd Canyon. Comment
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Dec 20 2019
  UC11287  Crassula connata var. erectoides W. H. Brewer 1861-1-29 143 Riverside Temescal Mtns Comment
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Aug 19 2010
  UCR26949  Cryptantha clevelandii var. clevelandii E. W. Lathrop 1966-5-8 6413 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  RSA747281  Cryptantha intermedia Orlando Mistretta 1992-6-10 522 Riverside Cleveland National Forest: Along old road coming off 3504 W of Sierra Peak. Head of road. Comment
  RSA543935  Cryptantha microstachys Steve Boyd 1991-5-10 6213 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  RSA543960  Cryptantha microstachys Steve Boyd, Orlando Mistretta 1991-5-9 6191 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  UC1595636  Cryptantha microstachys Steve Boyd 1991-5-10 6213 Riverside just n mouth of Hagador Canyon (Santa Ana Mountains, base of range) 426 Comment
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Jun 8 2012
  UCR16163  Cryptantha microstachys I. G. Rauch 1968-5-14 s.n. Riverside Santa Ana Mtns, Tin Mine Canyon Comment
  UCR63513  Cryptantha microstachys Scott D. White 1990-6-16 s.n. Riverside Santa Ana Mtns, Cleveland National Forest, private land just inside the Forest boundary; E wall of Hagador Canyon, near the mouth of the canyon 400 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
  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
  UCR140973  Cupressus arizonica June Latting 1973-6-30 s.n. Orange Santa Ana Mountains, Beeks Place, south of Oak Flat 854 Comment
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Mar 28 2014
  HSC99971  Cupressus forbesii Michael Kauffmann 2011-5-28 15 Riverside Just North of Sierra Peak Comment
  JEPS19314  Cupressus forbesii John Thomas Howell 1927-6-26 2607 Orange just to west Sierra Peak; Santa Ana Mts. 701 Comment
  JEPS46558  Cupressus forbesii John Thomas Howell 1927-1-1 Orange near Sierra Peak; Santa Ana Mountains 701 Comment
  RSA730999  Cupressus forbesii Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6502 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  UC1061653  Cupressus forbesii Howell Orange Santa Anna Mountains Comment
  UCR124168  Cupressus forbesii June Latting 1978-5-4 s.n. Riverside Santa Ana Mountains, Sierra Peak 929 Comment
  UCR140975  Cupressus forbesii June Latting 1973-6-30 s.n. Orange Santa Ana Mountains, 2 miles south of Sierra Peak, on road toward Skyline Drive 732 Comment
  UCR231193  Cupressus forbesii A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39925 Riverside Peninsular Range; Santa Ana Mtns., near Sierra Peak on dirt road (Leonard Rd.) from Skyline Drive, c. 1/4 mile east of the Orange Co. line 884 Comment
  GH357953  Cupressus guadalupensis subsp. forbesii J. T. Howell 1927-8-10 2983 A Unknown On steep rocky slope at head of Sierra Peak, in the the Santa Ana Mts. 609 Comment
  UCR140976  Cupressus sempervirens June Latting 1973-6-30 s.n. Orange Santa Ana Mountains, Beeks Place, south of Oak Flat 854 Comment
  CDA39910  Cuscuta californica var. californica R. F. Thorne 1963-7-26 32821 Riverside Santa Ana Mountains; Cleveland National Forest, Trabuco District. 0 Comment
  SBBG119583  Cuscuta californica var. californica R. F. Thorne 1963-7-26 32821 Riverside Trabuco District, Cleveland Nat Forest 304 Comment
  RSA263689  Cuscuta ceanothi E. W. Lathrop 1966-5-8 6418 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA640955  Cuscuta ceanothi R. F. Thorne 1963-7-26 32821 Riverside Santa Ana Mts., Cleveland National Forest, Trabuco District 305 Comment
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May 16 2016
  UCR26987  Cuscuta subinclusa E. W. Lathrop 1966-5-8 6418 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  RSA483  Datisca glomerata J. T. Howell 1927-7-3 263 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA263731  Daucus pusillus E. W. Lathrop 1966-5-8 6517 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  UCR26994  Daucus pusillus E. W. Lathrop 1966-5-8 6517 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  RSA747276  Deinandra fasciculata Orlando Mistretta 1992-6-10 513 Riverside Cleveland National Forest: Along old road coming off 3504 W of San Gabriel Mountains: Northeast slope Mt. San Antonio. Headwaters of west fork of north fork Lytle Creek. Sierra Peak. [Telegraph Peak quad?] Head of road. Comment
  RSA784310  Deinandra fasciculata J. D. Olmsted 1959-8-26 842 Riverside Oat Flat along Main Divide Motorway between Sierra Peak and the old Sierra Peak Guard Station, Santa Ana Mtns towards Santiago Res. 823 Comment
  UCSB37786  Deinandra fasciculata Roos, John 1965-6-19 Riverside Sky Line Drive, south of Corona, Santa Ana Mtns. Comment
  RSA444458  Delphinium cardinale J. C. Roos 1965-6-19 s.n. Riverside Hagador Canyon: Skyline Drive south of Corona. Comment
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May 21 2011
  UCR18913  Delphinium cardinale John C. Roos 1965-6-19 s.n. Riverside Peninsular Range; Santa Ana Mtns, Sky Line Drive, south of Corona Comment
  RSA48922  Delphinium parryi P. A. Munz 1949-5-26 13381 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA698564  Delphinium parryi Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA221084  Delphinium patens subsp. hepaticoideum E. W. Lathrop 1966-3-23 6107 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA784544  Delphinium patens subsp. hepaticoideum J. D. Olmsted 1959-5-13 627 Riverside Drainage area to Santa Ana River: Beacon Pines Ranch on Spring Trail, 100 yd below Main Divide T.T. 823 Comment
  RSA747112  Dendromecon Orlando Mistretta 1992-6-10 531 Riverside Peninsular Ranges: (Cleveland National Forest) Along old road coming off 3504 W of Sierra Peak. Head of road. Comment
  CSUSB1233  Dendromecon rigida Ronald H. Sauer 1965-5-3 Riverside On road side 2.8 miles from the Orange County-Riverside County line on Chase Drive. 365 Comment
  OBI11830  Dendromecon rigida Tracey & Viola Call, Viola Call 1962-4-13 2133 Riverside Tin Mine Cyn, ridge above skyline dr 732 Comment
  OBI32751  Dendromecon rigida E. W. Lathrop 1966-3-23 6090 Riverside 4 mi W of Corona between Tin Mine cyn and Santiago Peak, Skyline Dr 610 Comment
  UC1126348  Dendromecon rigida R. St. John 1931-3-25 198 Riverside e Sierra Peak; Corona Quadrangle; SBM 762 Comment
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Nov 27 2011
  UC1126384  Dendromecon rigida J. B. Spring 1931-3-18 25 Orange Black Star Canyon Corona Quadrangle 609 Comment
  UCR16439  Dendromecon rigida Frederick Neill 1977-5-28 52803 Riverside Santa Ana Mountains, 3.25 mi up Skyline Dr. from Corona Comment
  UCSB7040  Dendromecon rigida Gill, Robert 1959-3-14 Riverside Road to Black Star Canyon and Oak Flat, from Corona side, Santa Ana Mtn. Range 701 Comment
  RSA171106  Dendromecon rigida subsp. rigida Robert F. Thorne 1963-7-26 32833 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA171107  Dendromecon rigida subsp. rigida Robert F. Thorne 1963-7-26 32833 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA221050  Dendromecon rigida subsp. rigida E. W. Lathrop 1966-3-23 6090 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. 610 Comment
  RSA433238  Dendromecon rigida subsp. rigida Christopher Davidson 1977-5-18 5603 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  RSA519205  Dendromecon rigida subsp. rigida M. Lee Overholtzer 1962-7-4 291 Riverside n end of Cleveland National Forest; roadside on Skyline Drive between Voits cabin and tv-radio station. 1311 Comment
  RSA5311  Dendromecon rigida subsp. rigida B. D. Stark 1933-1-5 4506 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  RSA5408  Dendromecon rigida subsp. rigida Carl B. Wolf 1932-12-19 4442 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA790667  Dendromecon rigida subsp. rigida Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49702 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA597937  Deschampsia elongata F. M. Reed 1928-6-18 6138 Riverside Temescal [Santa Ana] Mountains: Main Street Canyon, south of Corona. 579 Comment
  UCR2321  Deschampsia elongata F. M. Reed 1928-6-18 6138 Riverside Peninsular Range; Temescal [Santa Ana] Mountains, Main Street Canyon, south of Corona 579 Comment
  RSA162740  Descurainia californica J. D. Olmsted 1959-4-23 472 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  RSA263755  Dicentra chrysantha E. W. Lathrop 1973-04 6884 Riverside 4 miles betw. Tin Mine Canyon and Santiago Peak, Skyline Drive 732 Comment
  CAS-BOT-BC402524  Dicentra ochroleuca John Thomas Howell 1928-7-10 4079 Orange At head of Black Star Canon [Canyon], Santa Ana Mts. 701 Comment
  RSA1322  Dicentra ochroleuca J. T. Howell 1928-7-10 1096 Orange Black Star Canyon, Santa Ana Mts. 701 Comment
  RSA162722  Dicentra ochroleuca John Olmsted 1958-6-10 158 Riverside 7.5 miles SW of Corona on Oak Flat Fire Road (turn S in corona from US onto Lincoln, Santa Ana Mtns, Santa Ana River. 793 Comment
  RSA171110  Dicentra ochroleuca Robert F. Thorne 1963-7-26 32823 Orange Trabuco District, Santa Ana Mts, Cleveland National Forest Comment
  RSA23620  Dicentra ochroleuca Percy C. Everett 1938-10-11 9464 Orange Santa Ana Mts, Tin Mine Canyon, Skyline Drive, 1/2 mile below summit. 915 Comment
  UCR141685  Dicentra ochroleuca June Latting 1980-5-20 s.n. Riverside Peninsular Range, Santa Ana Mountains, Skyline Drive in Tin Mine Canyon, south of Sierra Peak 671 Comment
  UCR734  Dicentra ochroleuca Joyce Davis 1965-5-14 62 Riverside Santa Ana Mtns, c. 7 mi. south of Corona, c. 15 ft. above Skyline Drive 518 Comment
  RSA263742  Dichelostemma capitatum subsp. capitatum E. W. Lathrop 1968-5-17 6890 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. 1082 Comment
  RSA263701  Dryopteris arguta E. W. Lathrop 1966-5-8 6470 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA311324  Dryopteris arguta R. F. Thorne 1963-7-26 32847 Orange Near Beek's Spring; Tin Mine Canyon; Trabuco District, Santa Ana Mountains, Cleveland National Forest. 716 Comment
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Apr 25 2011
  RSA698475  Dryopteris arguta Jeanne Paxton 1934-4-15 s.n. Riverside Hagador Canyon Comment
  RSA783269  Dryopteris arguta J. D. Olmsted 1959-4-23 460 Riverside Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 732 Comment
  UCR12626  Dryopteris arguta I. G. Rauch 1968-2-15 s.n. Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon 488 Comment
  UCR251865  Dryopteris arguta M. A. Voeltz 2014-5-25 s.n. Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon near Corona, Cleveland National Forest, Trabuco Ranger District 403 Comment
  UCR264471  Dryopteris arguta S. J. Myers, Vesta A. Myers, Bill Hopson 2015-1-2 1075 Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon, upper part of canyon, near Corona 732 Comment
  UCR26974  Dryopteris arguta E. W. Lathrop 1966-5-8 6470 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  RSA170990  Dudleya lanceolata R. F. Thorne 1963-7-26 s.n. Orange Near Beek's Spring; Tin Mine Canyon; Trabuco District, Santa Ana Mountains, Cleveland National Forest. 716 Comment
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Apr 25 2011
  RSA262076  Dudleya lanceolata E. W. Lathrop 1966-5-17 6526 Riverside 4 mi. W of Corona, between Tin Mine Canyon and Santiago Peak. 610 Comment
  RSA346  Dudleya lanceolata J. T. Howell 1927-7-3 255 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA660284  Dudleya multicaulis Orlando Mistretta 1992-6-6 415 Orange Vicinity of Sierra Peak, (Historical locality), on old roadcut heading down to powerlines 695 Comment
  RSA176277  Dudleya pulverulenta R. F. Thorne 1963-7-26 32845 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mts. Cleveland Natl Forest. Comment
  UCSB6995  Ehrendorferia ochroleuca Lloyd, Robert 1959-4-17 Riverside 3 mi. south of West Corona on the Oak Flat Fire Road, Santa Ana Mtn. range 335 Comment
  RSA697744  Ellisia chrysanthemifolia R. H. McArthur 1934-4-7 s.n. Orange Ladd Canyon. Comment
  UCR19371  Elymus condensatus John C. Roos 1965-6-19 s.n. Riverside Peninsular Range; Santa Ana Mtns, Sky Line Drive, south of Corona Comment
  RSA591752  Elymus glaucus E. W. Lathrop 1966-4-18 6172 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA548858  Elymus multisetus Fred M. Roberts, Gordon Marsh 1986-6-6 2986 Orange Black Star Canyon, Black Star Canyon Rd., 2.7 km by road below summit; 3.6 km S Sierra Peak., UTM 3741900m N, 439600mE. 646 Comment
  RSA221007  Emmenanthe penduliflora E. W. Lathrop 1966-3-23 6081 Riverside Skyline Drive, 4 mi. W of Corona, Tine Mine Canyon 305 Comment
  RSA221019  Encelia californica E. W. Lathrop 1966-3-23 6082 Orange Skyline Drive between Tin Mine Canyon and Black Star Canyon, 6 miles W of Corona, Santa Ana Mts. 427 Comment
  UCD131281  Encelia californica E. W. Lathrop 1966-3-30 6082 Riverside Skyline Drive between Tin Mine Canyon and Black Star Canyon. 6 miles west of Corona, Santa Ana Mountains. 426 Comment
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Jun 16 2013
  UCR270315  Encelia californica T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8341 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 384 Comment
  POM200869  Epilobium canum subsp. canum Carl B. Wolf 1933-8-24 5384 Orange Santa Ana Mountains; Along road S of Bedford Peak on way to Santiago Peak. 1067 Comment
  RSA162770  Epilobium canum subsp. canum J. D. Olmsted 1959-8-26 830 Orange 100 yards northeast of center of Hidden Ranch by pump along Black Star Canyon Road. N end of Santa Ana Mountains 671 Comment
  RSA263734  Epipactis gigantea E. W. Lathrop 1968-5-12 6854 Riverside 4 miles W of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive 305 Comment
  RSA263778  Epipactis gigantea R. Weatherby 1950-5-18 2967 Riverside Hagador [Hagador Canyon]. 396 Comment
  RSA263784  Equisetum hyemale var. affine R. Weatherby 1950-5-4 3075 Riverside Hagador 457 Comment
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Jul 11 2012
  RSA697579  Eremocarpus setiger J. Vlahos 1933-1 s.n. Orange Blackstar Canyon. Comment
  GH417463  Ericameria parishii C. B. Wolf 1933-8-24 5407 Unknown Santa Ana Mts. along main divide motorway between Bedford Pk. & Santiago Pk. 1066 Comment
  RSA167489  Ericameria parishii R. F. Thorne, John Olmsted 1963-7-26 32830 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA5305  Ericameria parishii B. D. Stark 1933-1-5 4498 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  RSA7387  Ericameria parishii C. B. Wolf 1933-8-24 5407 Orange Main divide motorway S of Beaford Peak, Santa Ana Mts 1067 Comment
  CAS-BOT-BC131636  Ericameria parishii var. parishii James R. Shevock 1976-10-28 5351 Orange Along the north slope of Pleasants Peak off of FS road 3S04, Santa Ana Mts., Cleveland National Forest 1219 Comment
  CAS-BOT-BC131637  Ericameria parishii var. parishii Robert F. Thorne; J. Olmsted 1963-7-26 32830 Orange In Santa Ana Mts., Cleveland Natl. Forest, Trabugo District 1188 Comment
  CAS-BOT-BC131638  Ericameria parishii var. parishii Carl B. Wolf 1933-8-24 5407 Orange Santa Ana Mts., along main divide motorway between Bedford Pk. & Santiago Pk. 1066 Comment
  UCR231187  Ericameria pinifolia A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39937 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1125 Comment
  CLARK-A1528-1824  Erigeron foliosus John C. Roos 1965-6-19 Riverside Santa Ana Mountains Comment
  RSA450424  Erigeron foliosus J. C. Roos 1965-6-19 s.n. Riverside Skyline Drive, S of Corona Comment
  RSA7463  Erigeron foliosus C. B. Wolf 1933-8-24 5382 Orange Santa Ana Mountains; Along main divide near Bedford Peak. 1067 Comment
  UCR251864  Erigeron foliosus M. A. Voeltz 2014-5-25 s.n. Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon near Corona, Cleveland National Forest, Trabuco Ranger District 403 Comment
  UCR264075  Erigeron foliosus S. J. Myers, Vesta A. Myers, Bill Hopson 2015-1-2 1079 Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon, upper part of canyon, near Corona 732 Comment
  UCR270317  Erigeron foliosus T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8343 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 384 Comment
  UCSB37926  Erigeron foliosus Roos, John 1965-6-19 Riverside Sky Line Drive, S of Corona, Santa Ana Mountains. Comment
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May 21 2011
  UCR215289  Erigeron foliosus var. foliosus Fred M. Roberts, D. E. Bramlet 2008-5-13 6956 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  CSUSB104  Eriodictyon crassifolium Kheng Try Seng 1966-4-13 660413 13 Riverside Santa Ana Mountains Northeast slope of Santa Ana Mountain. End of Main Street, 4 miles from downtown Corona. 457 Comment
  OBI13961  Eriodictyon crassifolium Tracey and Viola Call, Viola Call 1962-4-13 2123 Riverside Tin Mine Canyon near Corona. 351 Comment
  POM320435  Eriodictyon crassifolium Greg Wright 1971-4-17 13 Riverside Corona Skyline Drive, Cleveland National Forest, SW of Corona. Before ascending the Mtns. Santa Ana Mts. 366 Comment
  RSA171104  Eriodictyon crassifolium Robert F. Thorne 1963-7-26 32836 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest 854 Comment
  RSA696347  Eriodictyon crassifolium Kenneth Beard 1934-03 s.n. Riverside Corona Sky-line drive Comment
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Oct 31 2011
  UCSB9448  Eriodictyon crassifolium Lloyd, Robert 1959-4-17 Riverside 3 miles south of West Corona on the Oak Flat Fire Road; Santa Ana Mt. Range; Pacific Ocean drainage area 335 Comment
  UCR213  Eriodictyon crassifolium var. crassifolium K. S. Gill 1965-4-16 s.n. Riverside Santa Ana Mtns., Tin Mine Canyon at the foot of Skyline Drive, south of Corona 459 Comment
  UCR251891  Eriodictyon crassifolium var. crassifolium M. A. Voeltz 2014-5-25 s.n. Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon near Corona, Cleveland National Forest, Trabuco Ranger District 403 Comment
  UCR270758  Eriodictyon crassifolium var. crassifolium T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8344 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 384 Comment
  POM249977  Eriogonum davidsonii E. C. Jaeger 1939-8-9 s.n. Riverside Tin Mine Canyon. Comment
  RSA698424  Eriogonum fasciculatum Minor Warne 1934-4-27 s.n. Orange Ladd Canyon. Comment
  OBI11104  Eriogonum fasciculatum var. foliolosum Tracey & Viola Call, Viola Call 1962-4-13 2131 Riverside Tin Mine Cyn near Corona Comment
  RSA7639  Eriogonum fasciculatum var. polifolium Carl B. Wolf, E. R. Johnson 1933-11-3 5521 Orange Along main divide S of Bedford Peak. (common from Santiago Peak) Santa Ana Mountains. 1098 Comment
  UCD132157  Eriophyllum confertiflorum E. W. Lathrop Date Unknown 6420 Riverside Corona, Hagador Canyon, Cleveland National Forest, Trabuco District. 274 Comment
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Jun 16 2013
  UCR251868  Eriophyllum confertiflorum M. A. Voeltz 2014-5-25 s.n. Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon near Corona, Cleveland National Forest, Trabuco Ranger District 403 Comment
  UCR270745  Eriophyllum confertiflorum T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8359 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  RSA783824  Eriophyllum confertiflorum var. confertiflorum J. D. Olmsted 1959-5-1 531 Orange Santa Ana Mt. Range: Drainage to Santa Ana River . 100 yards NW of Rattlesnake Rock. 0.5 mi N of Hidden Ranch in Black Star Canyon. 4-5 mi Irvine Lake Reservoir to the west. 732 Comment
  HSC8468  Erodium botrys S. M. Clapp 1966-4-9 36 Orange Entrance to Black Star Canyon 152 Comment
  UCD103187  Erodium cicutarium E. W. Lathrop 1966-5-8 6459 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest, Trabuco District. 274 Comment
  UCR26956  Erodium cicutarium E. W. Lathrop 1966-5-8 6485 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  RSA220981  Erysimum capitatum var. capitatum E. W. Lathrop 1966-5-8 6400 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  UCR77710  Eschscholzia caespitosa Steve Boyd 1991-5-10 6210 Riverside Santa Ana Mtns, Base of range just north of mouth of Hagador Canyon, bottom Skyline Drive 459 Comment
  RSA543978  Eschscholzia caespitosa subsp. caespitosa Steve Boyd 1991-5-10 6210 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  RSA221008  Eucrypta chrysanthemifolia E. W. Lathrop 1966-5-23 6088 Riverside 6 miles West of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive. 610 Comment
  SD181559  Euphorbia micromera Louis C. Wheeler 1965-6-27 8690 Riverside Corona; Overboltzer's Grove. Comment
  UCR26988  Euphorbia peplus E. W. Lathrop 1966-5-8 6410 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  OBI70889  Euphorbia prostrata Louis C. Wheeler 1964-10-10 8634 Riverside 3030 Oak Ave, Corona Comment
  SD215502  Euphorbia prostrata Louis C. Wheeler 1964-10-10 8634 Riverside 3300 Oak Ave. Corona. Comment
  UCD142683  Euphorbia prostrata Louis C. Wheeler 1964-10-10 8634 Riverside 3030 Oak Ave., Corona. Comment
  UCR145475  Euphorbia prostrata L. C. Wheeler 1965-6-27 8691 Riverside Corona; Overholtzer's Grove 335 Comment
  SBBG101678  Festuca microstachys var. pauciflora S. Boyd with Mistretta 1991-5-9 6193 Orange Oak Flat, SE of Sierra Pk, just W of Riverside County line 792 Comment
  RSA543980  Filago californica Steve Boyd 1991-5-10 6212 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  UCR30565  Filago californica John C. Roos 1950-5-6 4786 Riverside Peninsular Range; Santa Ana Mtns., Head of Hagador Canyon, south of Corona 1037 Comment
  CAS-BOT-BC217645  Fraxinus dipetala Joseph Andorfer Ewan 1933-3-19 10897 Riverside Tin Mine Canyon, Santa Ana Mts. 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
  CLARK-A1528-1040  Fraxinus dipetala Joyce Davis 1965-3-16 12 Riverside Tin Mine Canyon 304 Comment
  LA50901  Fraxinus dipetala Joseph Andorfer Ewan; 1933-3-19 10897 Riverside Santa Ana Mountains, Tin Mine Canyon Comment
  RSA0042150  Fraxinus dipetala Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. [locality information from field label; note on newspaper 'N slope Pleasant's Pk, 1.5 mi. S Beek's Place]. 900 Comment
  RSA1456  Fraxinus dipetala E. R. Johnson 1929-4-11 1257 Orange Sierra Peak Trail. Comment
  RSA160521  Fraxinus dipetala J. D. Olmsted 1959-4-23 468 Riverside Spring Trail at Beacon Pines Ranch, 9 miles SW of Corona; Santa Ana Mts. Drainage area: Santa Ana river. 793 Comment
  RSA171936  Fraxinus dipetala Robert F. Thorne 1963-7-26 32856 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest. 732 Comment
  RSA221020  Fraxinus dipetala E. W. Lathrop 1966-3-23 6091 Riverside Skyline Drive, 4 mi. W of Corona, Tine Mine Canyon 305 Comment
  RSA221021  Fraxinus dipetala E. W. Lathrop 1968-5-8 6429 Riverside 3 miles SW of Corona, Hagador Canyon, Cleveland Nat l Forest, Trabuco District. 274 Comment
  RSA262074  Fraxinus dipetala E. W. Lathrop 1966-3-23 6076 Riverside Skyline Drive, 4 mi. W of Corona, Tine Mine Canyon 305 Comment
  RSA464919  Fraxinus dipetala E. Crow 1929-4-7 287 Riverside East end of Corona Skyline Drive, Santa Ana Mts. Comment
  RSA5313  Fraxinus dipetala B. D. Stark 1933-1-5 4502 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  RSA698196  Fraxinus dipetala J. Vlahos 1934-4-6 s.n. Orange Top of Black Star Canyon. Comment
  SBBG98328  Fraxinus dipetala E. Crow 1929-4-7 287 Orange E end of Corona Skyline drive Comment
  UC1123352  Fraxinus dipetala A. Lewis 1934-3-10 313 Riverside Tin Mine Canyon Cleveland National Forest, Corona Quad. 426 Comment
  UC1123366  Fraxinus dipetala R. St. John 1931-3-25 199 Riverside e of Sierra Peak; Corona Quad. 457 Comment
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Nov 27 2011
  UC2042136  Fraxinus dipetala R. F. Thorne and C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. [locality information from field label; note on newspaper 'N slope Pleasant's Pk, 1.5 mi S Beek's Place] Comment
  UC723892  Fraxinus dipetala Joseph Andorfer Ewan 1933-3-19 10897 Riverside Tin Mine Canyon Santa Ana Mountains Comment
  UCD170071  Fraxinus dipetala R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. 899 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
  UCR264473  Fraxinus dipetala S. J. Myers, Vesta A. Myers, Bill Hopson 2015-1-2 1074 Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon, lower part of canyon, near Corona 427 Comment
  RSA1491  Fritillaria biflora E. R. Johnson 1929-4-11 s.n. Orange Sierra Peak Trail. 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
  CLARK-A1528-827  Galium angustifolium I. Rauch 1968-5-14 Riverside Santa Ana Mountains Comment
  RSA700195  Galium angustifolium R. H. McArthur 1934-4-7 s.n. Orange Ladd Canyon. Comment
  UCR270316  Galium angustifolium T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8342 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 384 Comment
  UCR271515  Galium angustifolium T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8357 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  RSA221062  Galium angustifolium subsp. angustifolium E. W. Lathrop 1966-3-23 6083 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. 1220 Comment
  RSA221072  Galium angustifolium subsp. angustifolium E. W. Lathrop 1966-5-8 6448 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
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Apr 28 2011
  RSA221074  Galium angustifolium subsp. angustifolium E. W. Lathrop 1966-5-8 6423 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA749238  Galium angustifolium subsp. angustifolium Robert F. Thorne 1963-7-26 32825 Orange Trabuco District, Santa Ana Mts., Cleveland National Forest. 1159 Comment
  UCR227752  Galium angustifolium subsp. angustifolium R. F. Thorne 1963-7-26 32825 Orange Santa Ana Mountains, Cleveland National Forest, [vicinity of road from Beek's Spring to Pleasants Peak], Trabuco District 1159 Comment
  RSA700186  Galium aparine Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  UCD121711  Galium aparine E. W. Lathrop 1982-8-5 s.n. Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland Nat'l Forest, Trabuco District. 274 Comment
  RSA543971  Galium porrigens Steve D. Boyd, Orlando Mistretta 1991-5-9 6202 A Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  SEINET13297620 Image available Galium porrigens var. tenue T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-1 8348 Riverside Santa Ana Mountains: unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway (Corona South 7.5' Q.) 424 Comment
  UCR271514  Galium porrigens var. tenue T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8348 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  RSA700908  Galium siccatum Unspecified s.n. Orange Black Star Canyon Comment
  UCR26633  Galium trifidum E. W. Lathrop 1966-5-8 6471 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  CLARK-A1528-535  Garrya elliptica I. Rauch 1968-2-15 15 Riverside Santa Ana Mountains Comment
  CAS-BOT-BC178386  Garrya flavescens J. C. Roos 1966-4-23 s.n. Riverside Skyline Drive, Santa Ana Mtns., above Corona Comment
  CAS-BOT-BC178389  Garrya flavescens Carl B. Wolf 1939-1-20 9485 Riverside East side Santa Ana Mts., along Eagle Motor Way, 1 mi. below summit. 914 Comment
  CAS-BOT-BC178390  Garrya flavescens Carl B. Wolf 1939-1-20 9485 Riverside East side Santa Ana Mts., along Eagle Motor Way, 1 mi. below summit. 914 Comment
  CAS-BOT-BC178391  Garrya flavescens Carl B. Wolf 1939-1-20 9486 Riverside East side Santa Ana Mts., along Eagle Motor Way, 1 mi. below summit. 914 Comment
  CLARK-A1528-2935  Garrya flavescens John C. Roos 1966-4-23 Riverside Santa Ana Mountains Comment
  CLARK-A1528-7747  Garrya flavescens John C. Roos 1950-5-6 4788 Riverside Santa Ana Mountains 1036 Comment
  RSA5291  Garrya flavescens B. D. Stark 1933-1-5 4505 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  SBBG52808  Garrya flavescens C. Davidson 1977-5-18 5605 Orange Pleasant Peak (on Orange-Riverside Co line) 1219 Comment
  UC1122655  Garrya flavescens A. Lewis 1934-3-1 358 Riverside Hagador Canyon; Cleveland National Forest, Corona Quad. 1074 Comment
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Dec 11 2011
  UC1122672  Garrya flavescens H. E. Norton 1931-3-21 47 Orange Bedford Peak; Corona Quad. 1066 Comment
  UC2042138  Garrya flavescens R. F. Thorne and C. W. Tilforth, E. W. Lathrop 1977-4-27 49700 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  UC774630  Garrya flavescens Carl B. Wolf 1939-1-20 Riverside e side Santa Ana Mts. (along Eagle Motor Way, 1 mi below summit) 914 Comment
  UC774631  Garrya flavescens Carl B. Wolf 1939-1-20 Riverside e side Santa Ana Mts. (along Eagle Motor Way, 1 mi below summit) 914 Comment
  UCR108316  Garrya flavescens Steve Boyd, B. O'Brien 1998-1-13 10075 Orange Santa Ana Mtns, N end of range, head of Tin Mine Canyon along Main Divide Road (3S04) c. 1.8 mi south of Oak Flat 884 Comment
  UCR18855  Garrya flavescens John C. Roos 1950-3-6 4788 Riverside Santa Ana Mtns., head of Hagador Canyon. 1037 Comment
  UCSB42181  Garrya flavescens Roos, John 1966-4-23 Riverside Skyline Drive; Santa Ana Mtns; above Corona Comment
  UCSB4688  Garrya flavescens Gill, Robert 1959-3-14 Riverside Road to Black Star Canyon and Oak Flat from Corona side; Santa Ana Mtns; Pacific Slope 822 Comment
  CAS-BOT-BC402198  Garrya flavescens subsp. pallida R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49700 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  GH401779  Garrya flavescens subsp. pallida R. F. Thorne 1963-7-26 32831 Unknown Trabuco District, Santa Ana Mts., Clevelnad [Cleveland] National Forest 1188 Comment
  RSA790669  Garrya flavescens subsp. pallida Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49700 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SD42278  Garrya flavescens subsp. pallida Carl B. Wolf 1939-1-20 9485 Riverside Santa Ana Mts., east side, alonmg Eagle Motor Way, 1 mi below summit Comment
  IRVC24957  Garrya flavescens var. pallida Fred M. Roberts, Gordon A. Marsh 1986-6-6 2931 Orange Santa Ana Mountains; ridge S of Mabey Canyon, just N of Skyline Dr. near Orange County line; 2.7km SE Sierra Peak. Peninsular Ranges 820 Comment
  POM230138  Garrya flavescens var. pallida Noel Wallace 1938-1-9 s.n. Riverside Base of Skyline Drive, Santa Ana Mts. Comment
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Sep 7 2011
  POM261678  Garrya flavescens var. pallida W. Pequegnat 1940-12-14 s.n. Riverside Main Divide Truck Trail, near Pleasant Pk. Santa Ana Mts. 1067 Comment
  POM261680  Garrya flavescens var. pallida W. Pequegnat 1940-12-11 s.n. Riverside Skyline Drive, Santa Ana Mts. 762 Comment
  RSA171101  Garrya flavescens var. pallida Robert F. Thorne 1963-7-26 32831 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA23666  Garrya flavescens var. pallida Carl B. Wolf 1939-1-20 9486 Riverside Santa Ana Mts., East side, along Eagle Motor Way, 1 mi. below summit 915 Comment
  RSA23667  Garrya flavescens var. pallida Carl B. Wolf 1939-1-20 9485 Riverside Santa Ana Mts., East side, along Eagle Motor Way, 1 mi. below summit 915 Comment
  RSA444788  Garrya flavescens var. pallida J. C. Roos 1966-4-23 s.n. Riverside Skyline Drive, Santa Ana Mtns., above Corona. Comment
  RSA608241  Garrya flavescens var. pallida Steve Boyd, Bart O'Brien 1998-1-13 10075 Orange Santa Ana Mountains: north end of the range, head of Tin Mine Canyon along Main Divide Road (3S04) ca. 1.8 mi south of Oak Flat. 884 Comment
  RSA7396  Garrya flavescens var. pallida Carl B. Wolf 1933-8-24 5383 Orange Along main divide near Bedford Peak. Comment
  OBI14155  Garrya fremontii Carl B. Wolf 1939-1-20 9485 Riverside Santa Ana Mts E side, along Eagle Motor Way, 1 mi below summit 914 Comment
  RSA391430  Garrya veatchii Christopher Davidson 1977-5-18 5605 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  RSA593765  Gazania linearis Steve Boyd 1996-4-14 8546 Riverside Santa Ana Mountains, along Main Divide Road, just east of Sierra Peak at divide between Fresno and Fremont canyons. 884 Comment
  UCR95323  Gazania linearis Steve Boyd 1996-4-14 8546 Riverside Santa Ana Mtns., along Main Divide Road, just east of Sierra Peak at divide between Fresno and Fremont canyons. 884 Comment
  RSA221056  Gilia capitata subsp. abrotanifolia E. W. Lathrop 1966-5-8 6439 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA747280  Gnaphalium Orlando Mistretta 1992-6-10 521 Riverside Cleveland National Forest: Along old road coming off 3504 W of San Gabriel Mountains: Northeast slope Mt. San Antonio. Headwaters of west fork of north fork Lytle Creek. Sierra Peak. [Telegraph Peak quad?] Head of road. Comment
  RSA660537  Gnaphalium californicum Orlando Mistretta 1992-6-10 518 Riverside Cleveland National Forest: Along old road coming off 3504 W of San Gabriel Mountains: Northeast slope Mt. San Antonio. Headwaters of west fork of north fork Lytle Creek. Sierra Peak. [Telegraph Peak quad?] Head of road. Comment
  UCR146470  Gnaphalium californicum Orlando Mistretta 1992-6-10 518 Riverside Peninsular Ranges; Santa Ana Mtns region, Cleveland National Forest: Along old road coming off 3504 west of Sierra Peak. Head of road. Comment
  UCR92593  Gnaphalium canescens subsp. microcephalum F. M. Reed 1925-4-20 5001 Riverside Peninsular Range; Santa Ana Mtns., canyon south of Main Street, Corona 366 Comment
  RSA160475  Gnaphalium luteoalbum J. D. Olmsted 1959-4-17 405 Riverside Main Knobcone pine grove around edges, NE ridge from Sugarloaf Peak, along Main Divide TT 1/2 mile E of turn off the Radar Station, Santa Ana Mtns 1159 Comment
  UCR264073  Gnaphalium microcephalum S. J. Myers, Vesta A. Myers, Bill Hopson 2015-1-2 1071 Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon, lower part of canyon, near Corona 427 Comment
  RSA698232  Godetia bottae Kenneth Beard 1934-05 s.n. Orange Ladd Canyon. Comment
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Oct 31 2011
  UC1118594  Gutierrezia sarothrae H. E. Norton 1931-3-3 34 San Bernardino Plot #5 Corona Quadrangle Comment
  UCR231201  Haplopappus squarrosus A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39939 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  SEINET13387099 Image available Helianthemum scoparium T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-1 8350 Riverside Santa Ana Mountains: unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway (Corona South 7.5' Q.) 424 Comment
  UC1121541  Helianthemum scoparium A. Lewis 1934-3-1 359 Orange Head of Hagador Canyon Cleveland National Forest, Corona Quad. 1112 Comment
  UCR271513  Helianthemum scoparium T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8350 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  RSA162726  Helianthemum scoparium var. aldersonii J. D. Olmsted 1959-4-17 411 Riverside Rattlesnake Rock along Black Star Canyon Road 1 mi. north of Hidden Ranch and below Beacon Pines Ranch; 10 mi. SW of Corona 747 Comment
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Jun 6 2013
  RSA5357  Helianthemum scoparium var. scoparium C. B. Wolf, B. D. Stark, Adrian Wolf 1932-12-19 4439 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive 762 Comment
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Feb 23 2019
  RSA220973  Helianthus gracilentus E. W. Lathrop 1966-5-8 6431 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA262060  Helianthus gracilentus E. W. Lathrop 1966-5-8 6452 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA5288  Helianthus gracilentus C. B. Wolf 1932-12-19 4446 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive 762 Comment
  RSA874  Helianthus gracilentus J. T. Howell 1927-7-3 256 Orange Claymine Canyon near Sierra Peak. 305 Comment
  UCR271517  Helianthus gracilentus T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8360 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  CLARK-A1528-1917  Hemizonia fasciculata John C. Roos 1965-6-19 Riverside Santa Ana Mountains Comment
  RSA450431  Hemizonia fasciculata J. C. Roos 1965-6-19 s.n. Riverside Skyline Drive, S of Corona Comment
  UCR24425  Hemizonia fasciculata John C. Roos 1965-6-19 s.n. Riverside Peninsular Range; Santa Ana Mtns, Sky Line Drive, south of Corona Comment
  SD146120  Hesperocyparis forbesii J. Latting 1978-5-4 Riverside Santa Ana Mountains: Sierra Peak 929 Comment
  SD240777  Hesperocyparis forbesii A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39925 Riverside Peninsular Range: Santa Ana Mountains: near Sierra Peak on dirt road (Leonard Road) from Skyline Drive, c. 1/4 mile east of the Orange C. line (Black Star Canyon 7.5'Q) 883 Comment
  RSA263737  Hesperolinon micranthum E. W. Lathrop 1968-5-17 6889 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. 1082 Comment
  CAS-BOT-BC143750  Heteromeles arbutifolia Carl B. Wolf 1932-12-19 4430 -A Orange 1/2 mi. from Skyline Drive on firebreak road to Sierra Peak, Santa Ana Mts. Comment
  CAS-BOT-BC143751  Heteromeles arbutifolia Carl B. Wolf 1932-12-19 4430 -A Orange 1/2 mi. from Skyline Drive on firebreak road to Sierra Peak, Santa Ana Mts. 914 Comment
  OBI10136  Heteromeles arbutifolia Tracey and Viola Call, Viola Call 1962-4-13 2129 Riverside Tin Mine Cyn near Corona 351 Comment
  RSA0072402  Heteromeles arbutifolia Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6505 Orange Beek's Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  RSA0072403  Heteromeles arbutifolia Steve D. Boyd, Bart O'Brien 1998-1-13 10071 Orange Santa Ana Mountains: north end of the range, W of Sierra Peak along Main Divide Road (3S04), ca. 0.5 mi from summit of peak near head of Coal canyon. 774 Comment
  SBBG27204  Heteromeles arbutifolia C. B. Wolf 1932-12-19 4430 -a Orange 0.5 mi from Skyline Drive on fire break rd to Sierra Peak 762 Comment
  SEINET13297594 Image available Heteromeles arbutifolia T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-1 8351 Riverside Santa Ana Mountains: unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway (Corona South 7.5' Q.) 424 Comment
  UC527322  Heteromeles arbutifolia Carl B. Wolf and B. D. Stark 1932-12-19 Orange 0.5 mi from Skyline Drive (on firebreak road to Sierra Peak); Santa Ana Mts. 762 Comment
  UC860401  Heteromeles arbutifolia C. B. Wolf and B. D. Stark 1932-12-19 4430 A Orange 1/2 mi from Skyline Drive on Firebreak Road to Sierra Peak (Santa Ana Mountains); , Firebreak Road 762 Comment
  UCR231191  Heteromeles arbutifolia A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39936 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1152 Comment
  UCR231195  Heteromeles arbutifolia A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39927 Riverside Peninsular Range; Santa Ana Mtns., near Sierra Peak on dirt road (Leonard Rd.) from Skyline Drive, c. 1/4 mile east of the Orange Co. line 884 Comment
  UCR270747  Heteromeles arbutifolia T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8351 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  RSA160424  Holodiscus discolor J. D. Olmsted 1959-4-30 504 Riverside Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona 793 Comment
  RSA172272  Holodiscus discolor Robert F. Thorne 1963-7-26 32826 Orange Trabuco District, Santa Ana Mts., Cleveland National Forest. 1159 Comment
  RSA172273  Holodiscus discolor Robert F. Thorne 1963-7-26 32851 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Cleveland National Forest. 732 Comment
  RSA263653  Holodiscus discolor E. W. Lathrop 1977-4-20 7609 Riverside 4 mi. west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. 1372 Comment
  RSA309523  Holodiscus discolor James R. Shevock 1978-4-26 5904 Riverside Northeast side of Pleasants Peak, Cleveland National Forest 1189 Comment
  RSA646292  Holodiscus discolor Orlando Mistretta 1992-7-16 725 Riverside Santa Ana Mountains: Sierra Peak; Astragalus brauntonii survey. Comment
  RSA698657  Holodiscus discolor Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA699267  Holodiscus discolor R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  UCR159908  Holodiscus discolor Orlando Mistretta 1992-7-16 725 Riverside Peninsular Ranges: Santa Ana Mountains, Santa Ana Mountains: Sierra Peak Comment
  CAS-BOT-BC150021  Holodiscus discolor var. discolor E. W. Lathrop 1977-4-20 7609 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. Summit of Santiago Peak on the Riverside County slope side Comment
  UCD63683  Holodiscus discolor var. microphyllus D. Sanchez-Mata; Richard Halsey 2006-6-28 s.n. Riverside Corona. Cleveland National Forest. Santa Ana Mountains. Indian Truck Trail from Corona. 1110 Comment
  RSA543972  Hordeum murinum subsp. leporinum Steve Boyd, Orlando Mistretta 1991-5-9 6202 B Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  POM360744  Hymenoclea salsola var. salsola N. C. Cooper 1948-4-21 2683 Los Angeles Littlerock Reservoir. 762 Comment
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Jun 21 2013
  IRVC14741  Hypochaeris glabra A. S. Boughey 1968-4-23 205 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  RSA783567  Isocoma J. D. Olmsted 1959-5-1 519 Orange 500 yards west of Oat Flat past Johnson's dam; 9 mi. SW of Corona. 793 Comment
  UCR27000  Juglans californica E. W. Lathrop 1966-5-8 6419 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  RSA109  Juncus oxymeris J. T. Howell 1927-7-3 254 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA543966  Juncus patens Steve Boyd, Orlando Mistretta 1991-5-9 6197 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 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
  UCR17849  Juncus patens A. C. Sanders 1976-3-11 783 Orange Santa Ana Mtns., Black Star Canyon 427 Comment
  CHSC20913  Keckiella antirrhinoides Robert A. Schlising 1972-3-11 3012 Riverside Santa Ana Mountains southwest of Corona, in large marsh near margin of Cleveland National Forest. Comment
  OBI9298  Keckiella antirrhinoides Tracey & Viola Call, Viola Call 1962-4-13 2125 Riverside Tin Mine Cyn near Corona 351 Comment
  RSA221035  Keckiella antirrhinoides E. W. Lathrop 1966-3-23 6075 Riverside Skyline Drive, 4 mi. W of Corona, Tine Mine Canyon 305 Comment
  RSA424814  Keckiella antirrhinoides E. Crow 1929-4-7 285 Riverside Southwest of Corona. Comment
  RSA543937  Keckiella antirrhinoides Steve D. Boyd 1991-5-10 6215 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  UC1280772  Keckiella antirrhinoides H. E. McMinn 1935-6-22 3920 Orange e base of n end Santa Ana Mountains Comment
  UCR270318  Keckiella antirrhinoides T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8340 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 384 Comment
  UCR77771  Keckiella antirrhinoides Steve Boyd 1991-5-10 6217 Riverside Santa Ana Mtns, Base of range just north of mouth of Hagador Canyon, bottom Skyline Drive 459 Comment
  UCSB7012  Keckiella antirrhinoides Lloyd, Robert 1959-4-17 Riverside Mt. Range Santa Ana; 3 miles south of West Corona; on the Oak Flat Fire Road 335 Comment
  UCR251879  Keckiella antirrhinoides subsp. antirrhinoides M. A. Voeltz 2014-5-25 s.n. Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon near Corona, Cleveland National Forest, Trabuco Ranger District 403 Comment
  NY786715  Keckiella antirrhinoides var. antirrhinoides S. D. Boyd 1991-5-10 6217 Riverside Santa Ana Mountains, base of range, just north of mouth of Hagador Canyon at bottom of Skyline Drive. 426.7 Comment
  NY790227  Keckiella cordifolia F. M. Reed 1928-6-18 6024 Riverside [Mane?] Street Cañon - south of Corona 548.6 Comment
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May 1 2011
  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
  RSA221013  Keckiella cordifolia E. W. Lathrop 1966-5-17 6523 Riverside 4 mi. W of Corona, between Tin Mine Canyon and Santiago Peak. 610 Comment
  RSA543938  Keckiella cordifolia Steve D. Boyd 1991-5-10 6216 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  RSA543939  Keckiella cordifolia Steve D. Boyd 1991-5-10 6217 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  UCD123812  Keckiella cordifolia June Latting 1973-6-30 s.n. Riverside Riverside/Orange County: Santa Ana Mountains: off Skyline Drive above Corona on Sierra Peak Road. 823 Comment
  UCR141458  Keckiella cordifolia June Latting 1973-6-30 s.n. Riverside Santa Ana Mountains, off Skyline Drive above Corona on Sierra Peak Road, near Orange Co. line 915 Comment
  UCR251872  Keckiella cordifolia M. A. Voeltz 2014-5-25 s.n. Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon near Corona, Cleveland National Forest, Trabuco Ranger District 403 Comment
  UCR270752  Keckiella cordifolia T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8381 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  UCR27507  Keckiella cordifolia T. P. Krantz 1981-6-18 s.n. Orange Santa Ana Mtns, Main Divide Truck Trail near the head of the canyon Comment
  RSA263652  Keckiella ternata subsp. ternata E. W. Lathrop 1977-4-20 7610 Riverside 4 mi. west of Corona between Tin mine Canyon and Santiago Peak, Skyline Drive. Comment
  RSA783565  Lagophylla ramosissima J. D. Olmsted 1959-5-1 528 Riverside Drainage area to Irvine Lake. Oat Flat at intersection of Skyline Dr. and Main Divide T.T.; 9 mi. SW of Corona 823 Comment
  HSC5147  Lasthenia californica S. M. Clapp 1966-4-10 46 Orange 10 mi. into Black Star Canyon, near the summit 244 Comment
  POM361517  Lasthenia californica E. Crow 1929-4-7 310 Riverside Santa Ana Mountains, Corona Skyline Drive. Comment
  UCSB9449  Lasthenia gracilis Lloyd, Robert 1959-4-17 Orange 10 miles south of West Corona on the Oak Flats Fire Road; Santa Ana Mt. Range; Pacific Ocean Drainage Area 792 Comment
  UCR270310  Lathyrus vestitus T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8379 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  UCR6013  Lathyrus vestitus K. T. Seng 1966-4-13 660413- 11 Riverside Santa Ana Mtns, NE slope of Santa Ana Mountain, end of Main Street, 4 mi. from downtown Corona 457 Comment
  HSC14711  Lathyrus vestitus subsp. alefeldii S. M. Clapp 1966-4-10 27 Orange 3 mi. into Black Star Canyon 152 Comment
  RSA3123  Lathyrus vestitus subsp. alefeldii C. B. Wolf 1932-2-11 2652 Riverside Hidden Canyon 5 mi. W. of Corona at base of Santa Ana Mts. 405 Comment
  UC1128965  Lathyrus vestitus var. alefeldii A. Lewis 1934-3-1 357 Riverside Hagador Canyon Cleveland National Forest, Corona Quad. 1082 Comment
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Dec 11 2011
  IRVC24954  Lepechinia cardiophylla Fred M. Roberts, Gordon A. Marsh 1986-6-6 2933 Orange Santa Ana Mountains; ridge S of Mabey Canyon, just N of Skyline Dr. near Orange County line; 2.7km SE Sierra Peak. Peninsular Ranges 820 Comment
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Feb 22 2017
  RSA160464  Lepechinia cardiophylla J. D. Olmsted 1959-4-30 503 Riverside Spring Trail at Beacon Pines Ranch; 9 mi. SW of Corona. Alt. 2500 ft.; slope north west 35 deg 762 Comment
  RSA171015  Lepechinia cardiophylla Robert F. Thorne 1963-7-26 32853 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest. 732 Comment
  RSA300978  Lepechinia cardiophylla D. C. Michener 1982-8-4 4167 Orange Formerly disturbed area above main divide road ca 1/4 mile southeast of Beeks Place [5.9 miles west of jct of Chase & Skyline in Corona, off of latter].West side of divide above Tin Mine Canyon. 915 Comment
  RSA561497  Lepechinia cardiophylla Steve Boyd, Kyle Boyd 1992-7-9 7653 Orange Northern Santa Ana Mountains, along the main crest of the range, north of Pleasants Peak and south of Oak Flat (aka Oat Flat), 3.5 miles south of junction of Main Divide and Skyline Roads. Comment
  RSA588894  Lepechinia cardiophylla Fred M. Roberts, Carol A. Roberts 1990-5-30 4660 Orange Ridge between Upper Hagador Canyon and the West Fork of Ladd Canyon, Main Divide Truck Trail, 0.8km WNW Pleasants Peak. 1122 Comment
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Feb 22 2017
  RSA608238  Lepechinia cardiophylla Steve Boyd, Bart O'Brien 1998-1-13 10072 Orange Santa Ana Mountains: north end of the range, saddle between Mabey and Fremont canyons, along Main Divide Road ( 3S04) ca. 1.0 mi N of Oak Flat. 884 Comment
  RSA643101  Lepechinia cardiophylla Orlando Mistretta 1992-8-31 788 Riverside Santa Ana Mountains; Sierra Peak; Cleveland National Forest. Astragalus brauntonii survey. 701 Comment
  RSA660539  Lepechinia cardiophylla Orlando Mistretta 1992-6-10 516 Riverside Peninsular Ranges: (Cleveland National Forest) Along old road coming off 3504 W of Sierra Peak. Head of road. Comment
  RSA787497  Lepechinia cardiophylla Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49705 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SD152820  Lepechinia cardiophylla Steve Boyd, Kyle Boyd 1992-7-9 7653 Orange Northern Santa Ana Mountains, 3.5 miles south of junction of Main Divide and Skyline Roads. Comment
  UC1124486  Lepechinia cardiophylla H. E. Norton 1931-3-30 41 Orange Ridge between Ladd and East Fork Canyons 1036 Comment
  UC1608281  Lepechinia cardiophylla Steve Boyd and Kyle Boyd 1992-7-9 7653 Orange along main crest of range n Pleasants Peak (s of Oak Flat (aka Oat Flat), 3.5 mi s of junction of Main Divide and Skyline Rds.); Northern Santa Ana Mountains Comment
  UCD63692  Lepechinia cardiophylla Daniel Sanchez-Mata; Richard Halsey 2006-6-28 s.n. Riverside Corona. Cleveland National Forest. Santa Ana Mountains. Indian Truck Trail from Corona. 1110 Comment
  UCR153379  Lepechinia cardiophylla Orlando Mistretta 1992-8-31 788 Riverside Peninsular Ranges; Santa Ana Mountains region, Santa Ana Mountains; Sierra Peak; Cleveland National Forest. Astragalus brauntonii survey 701 Comment
  UCR231204  Lepechinia cardiophylla A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39942 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  UCR27070  Lepechinia cardiophylla T. P. Krantz 1981-6-18 s.n. Orange Santa Ana Mtns, Ridge west of Sierra Peak along the roadside Comment
  UCR79479  Lepechinia cardiophylla Steve Boyd, K. A. Boyd 1992-7-9 7653 Orange Santa Ana Mtns, along the main crest of the range, north of Pleasants Peak and south of Oak Flat (aka Oat Flat), 3.5 mi. south of junction with Main Divide and Skyline Roads. Comment
  RSA429896  Lepidium fremontii var. fremontii N. C. Cooper 1948-4-21 2697 Los Angeles Littlerock Reservoir. 762 Comment
  UC908087  Leptodactylon californicum subsp. glandulosum John Thomas Howell 1927-6-26 2610 Orange w Sierra Peak (Santa Ana Mts.); , w of Sierra Peak 609 Comment
  RSA698320  Leptosiphon floribundus Jeanne Paxton 1934-4-15 s.n. Riverside Hagador Canyon Comment
  RSA698321  Leptosiphon floribundus Minor Warne 1934-4-7 s.n. Orange Ladd Canyon Comment
  RSA221058  Leptosiphon floribundus subsp. glaber E. W. Lathrop 1966-5-8 6409 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  UCR231200  Lessingia filaginifolia A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39931 Riverside Peninsular Range; Santa Ana Mtns., near Sierra Peak on dirt road (Leonard Rd.) from Skyline Drive, c. 1/4 mile east of the Orange Co. line 884 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
  RSA698086  Lilium humboldtii J. Vlahos 1934-03 s.n. Orange Black Star Canyon. Comment
  GH357437  Lilium humboldtii subsp. ocellatum M. W. Skinner 1983-6-20 98 Unknown Riverside Co., Santa Ana Mtns. Tin Mine Canyon. T4S R4E S9, lower 1/2 Comment
  RSA124  Lilium humboldtii subsp. ocellatum J. T. Howell 1927-7-3 262 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA221033  Lilium humboldtii subsp. ocellatum E. W. Lathrop 1966-8-11 6549 Riverside Santa Ana Mountains. 4 miles W of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive. 610 Comment
  RSA468577  Linanthus androsaceus subsp. luteolus J. D. Olmsted 1962-5-9 3602 Riverside Along Man Divide T.T. between Skyline Drive and Black Star Canyon Road; northern Sta. Comment
  CAS-BOT-BC226779  Linanthus californicus T. Cass 1975-4-11 1517 Orange Ladd Canyon Comment
  RSA221060  Linanthus californicus E. W. Lathrop 1966-3-23 6110 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  SD41252  Linanthus californicus Darley F. Howe 1946-6-3 Orange Santa Ana Mountains Comment
  POM364579  Linanthus dianthiflorus subsp. dianthiflorus E. Crow 1929-4-7 H.- 8284 Riverside Santa Ana Mountains, Corona Skyline Drive. Comment
  UCR19163  Linanthus liniflorus John C. Roos 1960-5-30 s.n. Riverside Peninsular Range/Santa Ana Mtns., ridge east of Sugarloaf [=Pleasants Peak] 1067 Comment
  CLARK-A1528-5712  Linanthus liniflorus subsp. pharnaceoides John C. Roos 1960-5-30 Riverside Santa Ana Mountains 1066 Comment
  CLARK-A1528-5713  Linanthus liniflorus subsp. pharnaceoides John C. Roos 1960-5-30 Riverside Santa Ana Mountains 1066 Comment
  RSA783377  Linanthus nuttallii J. D. Olmsted 1959-4-17 416 Riverside Hagador Canyon 1/4 mile downstream from old tin mine along trail for water supply southwest of Corona 427 Comment
  RSA783494  Lithophragma J. D. Olmsted 1959-4-23 456 Orange Spring Trail, Beacon Pines Ranch; 9 miles SW of Corona. Drainage area to Santa Ana River. 762 Comment
  RSA735256  Lithophragma affine J. Vlahos 1934-4-16 s.n. Orange Black Star Canyon. Comment
  RSA162696  Lithophragma affine subsp. mixtum J. D. Olmsted 1959-4-23 461 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  RSA747282  Logfia filaginoides Orlando Mistretta 1992-6-10 529 Riverside Cleveland National Forest: Along old road coming off 3504 W of San Gabriel Mountains: Northeast slope Mt. San Antonio. Headwaters of west fork of north fork Lytle Creek. Sierra Peak. [Telegraph Peak quad?] Head of road. Comment
  UC1595637  Logfia filaginoides Steve Boyd 1991-5-10 6212 Riverside bottom of Skyline Drive just n of mouth Hagador Canyon (base of Santa Ana Mountains); Santa Ana Mountains 426 Comment
  UCR63514  Logfia filaginoides Scott D. White 1990-6-16 s.n. Riverside Santa Ana Mtns, Cleveland National Forest, private land just inside the Forest boundary; E wall of Hagador Canyon, near the mouth of the canyon 400 Comment
  RSA1492  Lomatium dasycarpum subsp. dasycarpum E. R. Johnson 1929-4-11 1255 Orange Sierra Peak Trail. Comment
  RSA49093  Lomatium dasycarpum subsp. dasycarpum P. A. Munz 1949-5-26 13377 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  CLARK-A1528-2431  Lomatium lucidum John C. Roos 1960-5-30 Orange Santa Ana Mountains 1066 Comment
  RSA221026  Lomatium lucidum E. W. Lathrop 1966-3-23 6089 Riverside 4 miles west of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive. 610 Comment
  UCR18584  Lomatium lucidum John C. Roos 1960-5-30 s.n. Orange Peninsular Ranges; Santa Ana Mtns, ridge at head of Hagador Canyon 1070 Comment
  UCR63510  Lomatium lucidum Scott D. White 1990-6-16 s.n. Riverside Santa Ana Mtns, Cleveland National Forest, private land just inside the Forest boundary; E wall of Hagador Canyon, near the mouth of the canyon 400 Comment
  RSA696519  Lonicera subspicata Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  UCR231194  Lonicera subspicata A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39926 Riverside Peninsular Range; Santa Ana Mtns., near Sierra Peak on dirt road (Leonard Rd.) from Skyline Drive, c. 1/4 mile east of the Orange Co. line 884 Comment
  RSA171013  Lonicera subspicata var. denudata R. F. Thorne 1963-7-26 32818 Riverside Santa Ana Mts., Cleveland National Forest, Trabuco District 305 Comment
  RSA220958  Lonicera subspicata var. denudata E. W. Lathrop s.n. Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, trabuci District. Comment
  RSA5268  Lonicera subspicata var. denudata C. B. Wolf 1932-12-19 4434 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive 762 Comment
  UCR26985  Lonicera subspicata var. johnstonii E. W. Lathrop 1966-1 6187 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest. Comment
  RSA784833  Lotus J. D. Olmsted 1959-4-23 453 Riverside Santa Ana Mountains; 1/4 miles west of Olive grove near mouth of Tin Mine Canyon; 5 miles SW of Corona. 396 Comment
  RSA220984  Lotus salsuginosus E. W. Lathrop 1966-3-23 6103 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA543976  Lotus salsuginosus Steve Boyd 1991-5-10 6208 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  RSA697975  Lotus salsuginosus Olive Van Meter s.n. Orange Black Star Canyon. Comment
  UCR26955  Lotus salsuginosus E. W. Lathrop 1966-3-23 6103 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  POM320471  Lotus salsuginosus var. salsuginosus Greg Wright 1971-4-17 12 Riverside Corona Skyline Drive, southwest of Corona, Cleveland National Forest. 366 Comment
  UCR270748  Lotus scoparius var. scoparius T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8365 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  IRVC14756  Lotus strigosus var. hirtellus A. S. Boughey 1968-4-23 217 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  RSA783365  Lupinus J. D. Olmsted 1960-4-17 384 Riverside Oat Flats at head of Tin Mine Canyon 9 miles southwest of Corona along Skyline Drive 823 Comment
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Jun 2 2013
  UCSB10696  Lupinus Robert M. Lloyd 1959-4-17 207 Orange collected in the Black Star Canyon of the Santa Ana Mountains Black Star Canyon 640 Comment
  RSA590646  Lupinus albifrons var. eminens R. Weatherby 1950-4-13 3021 Riverside Hagador Firebreak Comment
  RSA769614  Lupinus albifrons var. eminens E. W. Lathrop 1974-6-4 7405 Riverside 3 miles southwest of Corona, Cleveland National Forest, Trabuco District 274 Comment
  RSA769615  Lupinus albifrons var. eminens E. W. Lathrop 1974-6-4 7404 Riverside 3 miles southwest of Corona, Cleveland National Forest, Trabuco District 274 Comment
  RSA350003  Lupinus bicolor E. Crow 1929-4-7 303 Riverside Corona Skyline Drive, Santa Ana Mts. Comment
  RSA591821  Lupinus bicolor E. W. Lathrop 1966-3-23 6094 Riverside 4 miles west of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive. 610 Comment
  UCR208039  Lupinus bicolor E. W. Lathrop 1966-3-23 6094 Riverside Peninsular Range; Santa Ana Mtns, Skyline Drive, 4 mi west of Corona between Tin Mine Canyon and Santiago Peak 610 Comment
  RSA787678  Lupinus bicolor subsp. marginatus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49713 Orange Northern Santa Ana Mountains: Sierra Peak 900 Comment
  RSA590645  Lupinus bicolor subsp. microphyllus R. Weatherby 1950-4-13 3026 Riverside Hagador Firebreak Comment
  RSA413469  Lupinus concinnus N. C. Cooper 1948-4-21 2696 Los Angeles Littlerock Reservoir. 762 Comment
  RSA543961  Lupinus concinnus subsp. concinnus Steve D. Boyd 1991-5-9 6192 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  OBI42759  Lupinus excubitus Melody Lardner 1981-5-19 188 Riverside Collected in the Main St Cyn in the Santa Ana Mts, 3.5 mi S of Hwy 91 at the end of Main St 427 Comment
  IRVC17057  Lupinus excubitus var. hallii A. S. Boughey 1969-5-3 430 Orange Black Star Canyon on seaward side near crest. Santa Ana Mountains Comment
  IRVC20663  Lupinus excubitus var. hallii A. S. Boughey 1969-5-3 430 Orange Black Star Canyon on seaward side near crest. Santa Ana Mountains Comment
  OBI19312  Lupinus excubitus var. hallii Tracey & Viola Call, Viola Call 1962-4-13 2126 Riverside Tin Mine Cyn near Corona 351 Comment
  RSA413600  Lupinus excubitus var. hallii E. Crow 1929-4-7 293 Riverside East end of Corona Skyline Drive, Santa Ana Mts. Comment
  UCR251691  Lupinus excubitus var. hallii M. A. Voeltz 2014-5-25 s.n. Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon near Corona, Cleveland National Forest, Trabuco Ranger District 403 Comment
  RSA413703  Lupinus hirsutissimus E. Crow 1929-4-7 299 Riverside Santa Ana Mountains, Corona Skyline Drive. Comment
  RSA221043  Lupinus longifolius E. W. Lathrop 1966-5-8 6444 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  UC1129524  Lupinus longifolius A. Lewis Mar 1934 314 Riverside Tin Mine Canyon; Cleveland National Forest, Corona Quad. Comment
  IRVC2343  Lupinus succulentus Tony Price 1965-4-17 HS 0414 Orange Black Star Canyon. Santa Ana Mountains Comment
  IRVC24922  Lupinus succulentus Fred M. Roberts, Gordon Marsh 1986-6-6 2990 Orange Black Star Canyon, Black Star Canyon Rd., 6.6km SSW Sierra Peak. Santa Ana Mountains 460 Comment
  RSA414340  Lupinus succulentus E. Crow 1929-4-7 302 Riverside Corona Skyline Drive, Santa Ana Mts. Comment
  RSA660287  Lupinus succulentus Orlando Mistretta 1992-6-2 454 Orange Vicinity of Sierra Peak. (Historical Locality). Comment
  RSA414396  Lupinus truncatus E. Crow 1929-4-7 300 Riverside Santa Ana Mountains, Corona Skyline Drive. Comment
  UCR18628  Madia gracilis John C. Roos 1960-5-30 s.n. Orange Peninsular Ranges; Santa Ana Mtns, ridge at head of Hagador Canyon 1070 Comment
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Jan 7 2013
  CLARK-A1528-5622  Madia sativa John C. Roos 1960-5-30 Orange Santa Ana Mountains Comment
  CLARK-A1528-5623  Madia sativa John C. Roos 1960-5-30 Orange Santa Ana Mountains Comment
  UCR19101  Malacothamnus densiflorus John C. Roos 1960-6-5 s.n. Riverside Peninsular Range; Santa Ana Mtns., off the Ortega Hwy, NE slope of Sugarloaf Peak [=Pleasants Peak] 1067 Comment
  RSA7394  Malacothamnus densiflorus var. densiflorus Carl B. Wolf 1933-8-24 5385 Orange along road south of Bedford Peak on main divide. 1098 Comment
  POM257048  Malacothamnus fasciculatus W. Pequegnat 1940-5-26 s.n. Orange Black Star Canyon, on Skyline Drive, Santa Ana Mts. 610 Comment
  RSA263658  Malacothamnus fasciculatus E. W. Lathrop 1977-3-29 7512 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive Comment
  RSA263741  Malacothamnus fasciculatus E. W. Lathrop 1968-5-17 6893 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. 1082 Comment
  UCR251866  Malacothamnus fasciculatus M. A. Voeltz 2014-5-25 s.n. Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon near Corona, Cleveland National Forest, Trabuco Ranger District 403 Comment
  RSA160431  Malacothrix saxatilis J. D. Olmsted 1959-4-17 397 Riverside 1/4 miles above Fire Gate along Skyline Drive, 5 miles SW of Corona. Santa Ana Mtns to Santa Ana River. 457 Comment
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Nov 19 2011
  UCR264080  Malacothrix saxatilis S. J. Myers, Vesta A. Myers, Bill Hopson 2015-1-2 1069 B Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon, lower part of canyon, near Corona 427 Comment
  UCR270750  Malacothrix saxatilis T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8363 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  UCR27223  Malacothrix saxatilis E. W. Lathrop 1966-5-1 6256 Riverside Santa Ana Mtns., Skyline Drive, 4 mi west of Corona between Tin Mine Canyon and Santiago Peak 610 Comment
  RSA220972  Malacothrix saxatilis var. tenuifolia E. W. Lathrop 1966-5-1 62 Riverside 4 mi W of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive 610 Comment
  RSA798537  Malacothrix saxatilis var. tenuifolia R. F. Thorne, E. W. Lathrop 1977-5-18 49734 Riverside Northern Santa Ana Mountains: Tin Mine Canyon Comment
  RSA171929  Malosma laurina R. F. Thorne 1963-7-26 32820 Riverside Santa Ana Mts., Cleveland National Forest, Trabuco District 305 Comment
  UCR270308  Malosma laurina T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8376 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  CLARK-A1528-2790  Marah macrocarpa John C. Roos 1966-4-23 Riverside Santa Ana Mountains Comment
  CSUSB589  Marah macrocarpa I. Rauch 1968-2-15 Riverside Santa Ana Mountains Santa Ana Mountains, Tin Mine Canyon Comment
  CSUSB590  Marah macrocarpa Kheng Try Seng 1966-4-13 Riverside Santa Ana Mountains Northeast slope of Santa Ana Mountain. End of Main Street, 4 miles from downtown Corona. 457 Comment
  RSA591812  Marah macrocarpa J. C. Roos 1966-4-23 s.n. Riverside Santa Ana Mtns. S of Corona Comment
  UCR24179  Marah macrocarpa John C. Roos 1966-4-23 s.n. Riverside Peninsular Range; Santa Ana Mtns, south of Corona Comment
  UCR270753  Marah macrocarpa T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8374 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  UCSB42176  Marah macrocarpa Roos, John 1966-4-23 Riverside Santa Ana Mtns., S of Corona Comment
  RSA617804  Marsilea vestita R. E. Riefner 1998-3-22 98 -197 Riverside Glen Ivy Fault, Main Street Comment
  RSA162783  Meconella denticulata J. D. Olmsted 1959-5-1 530 Riverside Along Spring trail below Beek Cabin Windmills, Main Divide Motorway in Northern Santa Ana Mts, 9 miles Sw of Corona, Santa Ana Mts. Tin Mine Canyon to Corona 854 Comment
  UCR30815  Meconella denticulata John C. Roos 1950-5-6 4783 Riverside Peninsular Range; Santa Ana Mtns., Head of Hagador Canyon, south of Corona 1037 Comment
  RSA129339  Melica imperfecta A. Lewis 1934-03 4666 Riverside Bedford Canyon 762 Comment
  RSA262075  Melica imperfecta E. W. Lathrop 1966-4-18 6171 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UCD87935  Melica imperfecta A. Lewis 1934-3-1 325 Riverside Bedford Canyon, southeast of Corona, National Forest. 762 Comment
  UCR270304  Melica imperfecta T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8370 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  UCR270313  Melica imperfecta T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8347 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 384 Comment
  CSUSB1117  Melilotus indicus Kheng Try Seng 1966-4-13 660413 7 Riverside Santa Ana Mountains Northeast slope of Santa Ana Mountain. End of Main Street, 4 miles from downtown Corona. 457 Comment
  RSA441  Mentzelia micrantha J. T. Howell 1927-7-3 260 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA543979  Mentzelia micrantha Steve Boyd 1991-5-10 6211 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  UCR16334  Mentzelia micrantha I. G. Rauch 1968-5-14 s.n. Riverside Santa Ana Mtns, Tin Mine Canyon Comment
  RSA543973  Micropus californicus Steve Boyd, Orlando Mistretta 1991-5-9 6203 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  UC1595639  Micropus californicus var. californicus Steve Boyd and Orlando Mistretta 1991-5-9 6203 Orange se of Sierra Peak (crest of range at Oak Flat, just w of Riverside County line); Santa Ana Mountains 792 Comment
  UCR251870  Mimulus aurantiacus M. A. Voeltz 2014-5-25 s.n. Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon near Corona, Cleveland National Forest, Trabuco Ranger District 403 Comment
  POM256714  Mimulus aurantiacus var. pubescens W. Pequegnat 1940-6-19 s.n. Riverside Pleasants Pk. (Sugarloaf Pk.) 1220 Comment
  RSA444467  Mimulus aurantiacus var. pubescens J. C. Roos 1965-6-19 s.n. Riverside Skyline Drive, S of Corona Comment
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May 21 2011
  UCR26977  Mimulus aurantiacus var. pubescens E. W. Lathrop 1966-5-8 6478 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  UCR270305  Mimulus aurantiacus var. pubescens T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8373 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  UCR270312  Mimulus aurantiacus var. pubescens T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8346 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 384 Comment
  RSA790707  Mimulus brevipes R. H. McArthur 1934-4-28 16 Orange Trabuco and Ladd Canyons. PR8. Comment
  CLARK-A1528-3278  Mirabilis californica John C. Roos 1966-4-23 Riverside Comment
  CAS-BOT-BC434678  Mirabilis laevis var. crassifolia J. C. Roos 1966-4-23 s.n. Riverside Hills S. of Corona. Comment
  CLARK-A1528-3140  Monardella hypoleuca John C. Roos 1962-6-30 Riverside Santa Ana Mountains Comment
  RSA191948  Monardella hypoleuca Robert F. Thorne 1963-7-26 32858 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest. 732 Comment
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Aug 13 2012
  IRVC24949  Monardella hypoleuca subsp. hypoleuca Fred M. Roberts, Gordon A. Marsh 1986-6-6 2939 Orange Black Star Canyon, Black Star Canyon Rd., 6.6km SSW Sierra Peak. Santa Ana Mountains 460 Comment
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Aug 13 2012
  UCR17859  Monardella hypoleuca subsp. intermedia A. C. Sanders 1976-3-6 00407 Orange Peninsular Range; Santa Ana Mtns., Black Star Canyon 549 Comment
  UCR23575  Monardella hypoleuca subsp. intermedia John C. Roos 1962-6-30 s.n. Riverside Santa Ana Mtns, Skyline Drive at the head of Hagador Canyon 1159 Comment
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Aug 17 2012
  RSA450083  Monardella macrantha subsp. hallii J. C. Roos 1962-6-30 s.n. Riverside Sugarloaf, Santa Ana Mountains Comment
  UCR23574  Monardella macrantha subsp. hallii John C. Roos 1962-6-30 s.n. Riverside Peninsular Range/Santa Ana Mtns., Sugarloaf [=Pleasants Peak, possibly Orange Co., near line] 1220 Comment
  RSA262063  Muhlenbergia microsperma E. W. Lathrop 1966-3-23 6085 Riverside 4 miles west of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive. Comment
  SBBG89596  Muhlenbergia microsperma J. Hirshberg 1988-6-7 Orange Black Star Cyn 274 Comment
  RSA617800  Myosurus minimus var. filiformis R. E. Riefner 1998-3-22 98 -196 Riverside Glen Ivy Fault, Main Street Comment
  RSA263717  Nassella lepida E. W. Lathrop 1966-4-18 6179 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA263733  Nassella lepida E. W. Lathrop 6887 Riverside 4 miles W of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive 1067 Comment
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Mar 3 2013
  RSA627530  Nassella lepida Sandra Leatherman, Fred M. Roberts, B. Leatherman, Trish Smith 1998-5-23 19 Los Angeles Black Star Canyon: SPur Road off of Black Star Canyon road. 335 Comment
  RSA660535  Nassella lepida Orlando Mistretta 1992-6-10 525 Riverside Cleveland National Forest: Along old road coming off 3504 W of Sierra Peak. Head of road. Comment
  POM263720  Nassella pulchra E. W. Lathrop 1966-3-23 6105 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA263725  Nassella pulchra E. W. Lathrop 1966-3-23 6093 Riverside 4 miles west of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive. 610 Comment
  RSA602779  Nassella pulchra R. E. Riefner Jr., Tony Bomkamp, R. Ramirez 1997-6-11 97 -181 Orange Black Star Canyon, Hidden Ranch. 610 Comment
  RSA660533  Navarretia atractyloides Orlando Mistretta 1992-6-10 527 Riverside Peninsular Ranges: (Cleveland National Forest) Along old road coming off 3504 W of Sierra Peak. Head of road. Comment
  RSA699273  Nemophila menziesii var. integrifolia Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  CSUSB760  Nicotiana glauca K. S. Gill 1965-3-21 Riverside Tin Mine Canyon at the foot of Skyline Drive, south of Corona on roadside wasteland. 457 Comment
  UC1090378  Nicotiana glauca Milo S. Baker 1958-5-15 13258 San Bernardino Black Star Canyon; San Bernardino Mts. Comment
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Nov 11 2014
  UC1125156  Nicotiana glauca A. Lewis 1934-3-4 309 Riverside Tin Mine Canyon; Cleveland National Forest, Corona Quad. 762 Comment
  RSA263685  Nolina cismontana E. W. Lathrop 1976-6-28 7506 Orange 4 miles northeast of Lake Irvine, Black Star canyon, Cleveland Nat l Forest, Trabuco dist. Comment
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Jan 2 2008
  UCR270744  Nolina cismontana T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8364 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  RSA783221  Oenothera micrantha J. D. Olmsted 1959-5-1 516 Orange 3/4 miles west of Oat Flat along old road from Main Divide Motorway into Sierra Canyon 777 Comment
  RSA5312  Opuntia B. D. Stark 1933-6-5 4503 Orange 2 mi S of summit of Skyline Drive, on road along ridge to santiago Peak. Santa Ana Mountains. 1067 Comment
  RSA407959  Orthocarpus purpurascens E. Crow 1929-4-7 306 Riverside Corona Skyline Drive, Santa Ana Mts. Comment
  CLARK-A1528-4778  Oryzopsis miliacea John C. Roos 1965-6-19 Riverside Santa Ana Mountains Comment
  CLARK-A1528-141  Osmorhiza brachypoda Ruth Cooper 1968-5-5 Riverside Santa Ana Mountains Comment
  RSA160508  Osmorhiza brachypoda J. D. Olmsted 1959-4-23 464 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  RSA221029  Osmorhiza brachypoda E. W. Lathrop 1966-3-23 6108 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA458996  Osmorhiza brachypoda E. Crow 1929-4-7 317 Riverside East end of Corona Skyline Drive, Santa Ana Mountains. Comment
  UCR26850  Osmorhiza brachypoda E. W. Lathrop 1966-5-17 6536 Riverside Santa Ana Mtns., 4 mi. west of Corona, between Tin Mine Canyon and Santiago Peak 612 Comment
  UCR26878  Osmorhiza brachypoda E. W. Lathrop 1966-3-23 6108 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  CLARK-A1528-3766  Oxytheca trilobata John C. Roos 1960-6-11 Orange Santa Ana Mountains 975 Comment
  CHSC20912  Paeonia californica Robert A. Schlising 1972-3-11 3011 Riverside Southwest of Corona, in large wash near margin of Cleveland National Forest. Comment
  CHSC20923  Paeonia californica Robert A. Schlising 1972-3-19 3013 Riverside SE of Corona, near margin of Cleveland National Forest. Comment
  CSUSB1064  Paeonia californica I. Rauch 1968-2-15 Riverside Santa Ana Mountains Santa Ana Mountains, Tin Mine Canyon Comment
  RSA221052  Paeonia californica E. W. Lathrop 1966-3-23 6077 Riverside Skyline Drive, 4 mi. W of Corona, Tine Mine Canyon 305 Comment
  RSA652108  Paeonia californica Don Fells 1948-2-15 s.n. Riverside 1/3 mile SE from 6th and California, Norco. 229 Comment
  UCR16464  Paeonia californica Robert A. Clark 1966-3-19 031966- 4 Riverside Santa Ana Mtns, Rural Corona, Sky Line Drive 2.5 mi. from entrance off Chase Avenue 274 Comment
  CAS-BOT-BC402203  Pedicularis densiflora R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49711 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA1458  Pedicularis densiflora E. R. Johnson 1929-4-11 1259 Orange Sierra Peak Trail. Comment
  RSA160448  Pedicularis densiflora J. D. Olmsted 1959-4-14 374 Riverside 4 mi. SR of Oak Flat near west county line on Santiago Pk. dire rd. near top of pk. west of Santiago pk. SW towards Irvine. 1280 Comment
  RSA262084  Pedicularis densiflora E. W. Lathrop 1969-4-9 6968 Riverside 4 mi west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive.Southern oak woodland with occasional Coulter Pine and Bigcone Spruce. Comment
  RSA401953A  Pedicularis densiflora E. Crow 1929-4-7 304 Riverside Corona Skyline Drive, Santa Ana Mts. Comment
  RSA787503  Pedicularis densiflora Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49711 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UC1125726  Pedicularis densiflora H. A. Jensen Mar 1934 318 Riverside head of Tin Mine Canyon (Cleveland N.F.) 853 Comment
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Oct 30 2011
  UC1424841  Pedicularis densiflora E. W. Lathrop 1977-4-13 7606 Riverside 4 mi w of Corona (between Tin Mine Canyon and Santiago Peak, Skyline Drive, Sierra Peak near the towers); Santa Ana Mountains Comment
  UCD169762  Pedicularis densiflora R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49711 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UCR16845  Pedicularis densiflora Robert A. Clark 1966-3-19 031966- 05 Riverside Peninsular Range; Santa Ana Mtns, Skyline Drive 6 miles from entrance off Chase Ave., Corona 762 Comment
  UCR24459  Pedicularis densiflora John C. Roos 1966-4-23 s.n. Riverside Peninsular Range; Santa Ana Mtns, south of Corona Comment
  UCSB6136  Pedicularis densiflora Gill, Robert 1959-3-14 Riverside Road to Black Star Canyon 853 Comment
  RSA698462  Pellaea andromedifolia R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA783268  Pellaea andromedifolia J. D. Olmsted 1959-4-23 466 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  UCR26976  Pellaea andromedifolia E. W. Lathrop 1966-5-8 6462 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  UCR270754  Pellaea andromedifolia T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8382 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  RSA698464  Pellaea mucronata Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts Comment
  UCR215288  Pennisetum setaceum Fred M. Roberts, D. E. Bramlet 2008-5-13 6957 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  UCR16686  Penstemon centranthifolius R. Stoltz 1969-5-3 43 Riverside Peninsular Range; Santa Ana Mtns, Corona, Eagle Canyon, 4.2 mi south of Main Street and Hwy 91 intersection 518 Comment
  RSA790700  Penstemon heterophyllus R. H. McArthur 1934-4-21 1 Orange PR8. Black Star Canyon. Comment
  UCR26978  Penstemon heterophyllus subsp. australis E. W. Lathrop 1966-4-18 6186 Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  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
  RSA263751  Penstemon heterophyllus var. australis E. W. Lathrop 1968-5-17 6892 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. 1082 Comment
  RSA39403  Penstemon heterophyllus var. australis M. Dillon 1947-4-28 14702 Riverside Hidden Canyon at foot of Skyline Drive, southwest of Corona. Comment
  RSA16714  Penstemon spectabilis B. D. Stark 1935-7-26 7533 Orange 2 mi. south of summit of Skyline Drive, on road along ridge to Santiago Peak. 1067 Comment
  RSA221075  Penstemon spectabilis E. W. Lathrop 1966-5-8 6401 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA503397  Penstemon spectabilis J. D. Olmsted 1962-5-9 3603 Riverside NW grove of knobcone pines. NW ridge of Pleasants Peak. Northern Santa Ana Mts. 1128 Comment
  RSA733711  Penstemon spectabilis Jeanne Payton 1934-4-16 s.n. Riverside Hagador Canyon. Comment
  UCR141686  Penstemon spectabilis June Latting 1980-5-20 s.n. Riverside Peninsular Range, Santa Ana Mountains, Skyline Drive in Tin Mine Canyon, south of Sierra Peak 671 Comment
  UCR15978  Penstemon spectabilis K. S. Gill 1965-3-21 49 Riverside Santa Ana Mtns, Tin Mine Canyon at the foot of Skyline Drive, south of Corona 610 Comment
  NY661157  Penstemon spectabilis var. spectabilis C. Davidson 1977-5-18 5604 Orange Santa Ana Mountains, Cleveland National Forest. Pleasants Peak (on Orange-Riverside Co. line) 1219.2 Comment
  CLARK-A1528-2995  Phacelia cicutaria John C. Roos 1965-6-19 Riverside Santa Ana Mountains Comment
  UCSB42177  Phacelia cicutaria var. hispida Roos, John 1965-6-19 Riverside Sky Line Drive, south of Corona, Santa Ana Mtns. Comment
  UC1262269  Phacelia cryptantha E. W. Lathrop 1966-5-8 6441 Riverside 3 mi sw Corona; Cleveland Nat'l Forest, Tracuco Distict, Hagador Canyon 274 Comment
  HSC13701  Phacelia distans S. M. Clapp 1966-4-10 44 Orange 4 mi. into Black Star Canyon 183 Comment
  RSA426071  Phacelia distans E. Crow 1929-4-7 295 Riverside Southwest of Corona. Comment
  RSA697781  Phacelia distans Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA699145  Phacelia distans R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA784136  Phacelia distans J. D. Olmsted 1959-4-30 502 Riverside Spring Trail at Beacon Pines Ranch; 9 miles southwest of Corona. Santa Ana Mountains. Drainage area to Santa Ana River. 747 Comment
  RSA426102  Phacelia douglasii N. C. Cooper 1948-4-21 2694 Los Angeles Littlerock Reservoir. 762 Comment
  RSA699144  Phacelia hispida R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA738985  Phacelia hispida Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA738986  Phacelia hispida Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA697776  Phacelia imbricata subsp. patula Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA697788  Phacelia minor Snow s.n. Orange Black Star Canyon. Comment
  CLARK-A1528-4793  Phalaris aquatica John C. Roos 1962-6-30 Riverside Santa Ana Mountains Comment
  UCR16672  Phalaris aquatica Frederick Neill 1977-5-28 52804 Riverside Santa Ana Mtns., 4.8 mi. up Skyline Dr. from Corona, near crest of mountains 854 Comment
  UCR19300  Phalaris aquatica John C. Roos 1965-6-19 s.n. Riverside Peninsular Range; Santa Ana Mtns, Sky Line Drive, south of Corona Comment
  UCR23998  Phalaris aquatica John C. Roos 1962-6-30 s.n. Riverside Santa Ana Mtns, Head of Tin Mine Canyon Comment
  RSA160517  Pholistoma auritum J. D. Olmsted 1959-4-17 415 Riverside Eagle T.T. 0.5 mile east of intersection with Main Divide T.T.; 10 miles SSW of Corona. Santa Ana Mountains, Santa Ana River Drainage Area 732 Comment
  RSA221011  Pholistoma auritum E. W. Lathrop 1966-5-8 6404 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA459263  Pholistoma auritum E. Crow 1929-4-7 298 Riverside Corona Skyline Drive, Santa Ana Mountains. Comment
  RSA699272  Pholistoma auritum Minor Warne 1934-4-7 s.n. Orange Ladd Canyon Comment
  POM127068  Pickeringia montana var. tomentosa F. M. Reed 1917-6-3 3949 Riverside Main Street Canyon , South of Corona Comment
  RSA263779  Picris echioides Robert Harvey 1959-8-4 153 Riverside Corona, Tin Mine Canyon 457 Comment
  A246943  Pinus attenuata C. B. Wolf 1934-12-21 6260 Unknown N.E. of Sugarloaf Peak (Pleasants Pk.), along Main St. Trail, Santa Ana Mts. 1158 Comment
  A354599  Pinus attenuata C. B. Wolf 1934-12-21 6259 Unknown so. slope of main ridge, saddle n.w. of Sugarloaf Pk. (Pleasants Pk.) 1 3/10 mi. so. of summit of Skyline Drive, Santa Ana Mts. 1158 Comment
  A354605  Pinus attenuata C. B. Wolf 1934-12-21 6260 Unknown N.E. of Sugarloaf Peak (Pleasants Pk.), along Main St. Trail, Santa Ana Mts. 1158 Comment
  CAS-BOT-BC402195  Pinus attenuata R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49694 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  CAS-BOT-BC73332  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange Slope of main ridge, Saddle h.w. of Sugarloaf Pk. (Pleasants Pk.), 1 3/10 mi. so. of summit of Skyline Drive, 1158 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
  CAS-BOT-BC73334  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange So. slope of main ridge, saddle n.w. of Sugarloaf Pk. (Pleasants Pk) 1 3/10 mi. so. of summit of Skyline Drive, 1158 Comment
  GH246919  Pinus attenuata C. B. Wolf 1934-12-21 6259 Unknown so. slope of main ridge, saddle n.w. of Sugarloaf Pk. (Pleasants Pk.) 1 3/10 mi. so. of summit of Skyline Drive, Santa Ana Mts. 1158 Comment
  MACF019850  Pinus attenuata Doug Stavert 1975-4-27 Orange Pleasants Peak, Santa Ana Mtns. Comment
  NY34631  Pinus attenuata C. B. Wolf 1934-12-21 6260 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  NY34650  Pinus attenuata C. B. Wolf 1934-12-21 6259 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  OBI6107  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange S slope of main ridge, saddle NW of Sugarload Pk (Pleasants pk) 1-3/10 mi S of summit of Skyline Dr, 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
  RSA12825  Pinus attenuata C. B. Wolf 1934-12-21 6259 Orange So. slope of main ridge, saddle n.w. of Sugarloaf Pk. (Pleasants Pk.) 1 3/10 mi. so. of summit of Skyline Drive, Santa Ana Mts. 1159 Comment
  RSA12827  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
  RSA175269  Pinus attenuata Robert F. Thorne 1963-7-26 32824 Orange Trabuco District, Santa Ana Mts., Cleveland National Forest. 1159 Comment
  RSA23668  Pinus attenuata C. B. Wolf 1939-1-20 9484 Orange Santa Ana Mts., N.W. of Pleasant's Pk. (Sugarloaf) along Main Divide Motorway; 1 3/10 mi. So. of summit, Skyline Dr. Ft. 1159 Comment
  RSA263726  Pinus attenuata E. W. Lathrop 1976-11-1 7601 Riverside Main Divide Truck Trail, Pleasant Peak north slope. Comment
  RSA263775  Pinus attenuata R. Weatherby 1950-5-11 1373 Riverside Hagador Canyon, Santa Ana Mountains. 793 Comment
  RSA384289  Pinus attenuata Christopher Davidson 1977-5-18 5600 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  RSA5314  Pinus attenuata B. D. Stark 1933-1-5 4501 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  SD13289  Pinus attenuata Carl B. Wolf 1934-12-21 Orange Santa Ana Mountains, northeast of Sugarloaf Peak (Pleasants Peak), along Main Street Trail 1160 Comment
  SD13290  Pinus attenuata Carl B. Wolf 1934-12-21 Orange Santa Ana Mountains, saddle northwest of Sugarloaf Peak (Pleasants Peak), south slope of main ridge, 1.3 mile south of summit of Skyline Drive 1160 Comment
  SD136371  Pinus attenuata Carl B. Wolf 1934-12-21 Orange northeast of Sugarloaf Peak, along Main Street, Santa Ana Mountains 1160 Comment
  SD136372  Pinus attenuata Carl B. Wolf 1934-12-21 Orange south slope of main ridge, saddle northwest of Sugarloaf Peak, 1.3 mile south of summit of Skyline Drive, Santa Ana Mountains Comment
  UC1713694  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange 1.3 mi s summit of Skyline Drive (saddle nw of Sugarloaf Pk. (Pleasants Pk.), s slope of main ridge); Santa Ana Mountains 1158 Comment
  UC532151  Pinus attenuata C. B. Wolf 1934-12-12 6259 Orange saddle nw of Sugarloaf Pk. (Pleasants Pk.) (s slope of main ridge, 1.3 mi s of summit of Skyline Drive); Santa Ana Mts. 1158 Comment
  UC532152  Pinus attenuata Carl B. Wolf 1934-12-21 6260 Orange ne Sugarloaf Peak (Pleasants Pk.) (along Main St. Trail); Santa Ana Mts. Comment
  UCD169804  Pinus attenuata R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49694 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  UCR231189  Pinus attenuata A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39943 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  HSC104216  Pinus coulteri A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39932 Orange Peninsular Range; Santa Ana Mtns.: near Pleasants Peak along the Main Divide Truck Trail 1152 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
  RSA220955  Pinus coulteri E. W. Lathrop 1966-3-23 6115 Riverside 4 miles west of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive. 1220 Comment
  RSA731002  Pinus coulteri Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6504 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  UCR231192  Pinus coulteri A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39932 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1152 Comment
  RSA730998  Pinus halepensis Fred M. Roberts 2007-1-19 6500 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  RSA731000  Pinus sabiniana Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6501 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  RSA731007  Pinus sabiniana Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6499 Orange near Black Star Cyn. Rd. Upper Fremont Cyn. near mountain divide, 0.9 km ENE Horseshoe Spring and 0.1 km WSW Beek s Place. (4.1 km NW Pleasants Pk). West-facing slope on sandy, rocky soils in chaparral. 840 Comment
  UCR231188  Pinus sabiniana A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39944 Orange Peninsular Range; Santa Ana Mountains, Beek's Place on Main Divide Truck Trail 863 Comment
  CAS-BOT-BC136556  Piperia cooperi W. I. Lester 1895-1-1 s.n. Riverside Field redacted by CAS, contact the data manager for more information Comment
  RSA221042  Piperia cooperi E. W. Lathrop 1966-5-8 6479 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA263777  Piperia cooperi R. Weatherby 1950-4-20 3055 Riverside Hagador Canyon 396 Comment
  UCR30553  Piperia cooperi John C. Roos 1950-5-6 4791 Riverside Santa Ana Mtns., Hagador Canyon 427 Comment
  UCR23995  Piptatherum miliaceum John C. Roos 1965-6-19 s.n. Riverside Peninsular Range; Santa Ana Mtns, Sky Line Drive, south of Corona Comment
  UCR270756  Piptatherum miliaceum T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8369 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  UCR270762  Pityrogramma triangularis T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8384 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  HSC16874  Plantago erecta S. M. Clapp 1966-4-8 43 Orange 4 mi. into Black Star Canyon 183 Comment
  RSA1460  Plantago erecta E. R. Johnson 1929-4-11 1260 Orange Sierra Peak Trail. Comment
  UC484111  Plantago erecta E. R. Johnson 1929-4-11 Orange Sierra Peak Trail Santa Ana Mts. Comment
  UCD124517  Plantago major E. W. Lathrop 1966-5-8 6414 Riverside Santa Ana Mountains. 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest, Trabuco District. 274 Comment
  CAS-BOT-BC93216  Platanus racemosa Tom Paradise 1993-6-5 31 Riverside Santa Ana Mountains. Main Street Canyon. Corona. One mile upstream of Main Street and Upper Drive. Comment
  RSA221057  Platanus racemosa E. W. Lathrop 1966-5-8 6425 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  UCR241072  Platanus racemosa Dick Newell, Judy Booth, Robt. L. Allen 2013-4-6 324 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Rd./Silverado Cyn. Rd., 1.5 miles above Maple Springs gate 671 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
  SD239845  Polygala cornuta subsp. fishiae A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39941 Orange Peninsular Range; Santa Ana Mtns. : near Pleasants Peak along the Main Divide Truck Trail. 1143 Comment
  UCR231203  Polygala cornuta subsp. fishiae A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39941 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  UCR270760  Polygala cornuta subsp. fishiae T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8366 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  POM126398  Polygala cornuta var. fishiae F. M. Reed 1917-6-3 3989 Riverside Main Street Canyon , South of Corona Comment
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Oct 10 2009
  RSA425  Polygala cornuta var. fishiae J. T. Howell 1927-7-3 258 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA5351  Polygala cornuta var. fishiae Carl B. Wolf 1932-12-19 4433 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA561496  Polygala cornuta var. fishiae Steve Boyd, Kyle Boyd 1992-7-9 7654 Orange Northern Santa Ana Mountains, along the main crest of the range, north of Pleasants Peak and south of Oak Flat (aka Oat Flat), 1.5 miles south of junction of Main Divide and Skyline Roads. 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
  RSA664940  Polygala cornuta var. fishiae J. C. Roos 1960-5-30 s.n. Riverside Ridge east of Sugarloaf Pk. 1067 Comment
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Sep 15 2008
  RSA698416  Polygala cornuta var. fishiae Unspecified 1934-05 s.n. Orange Ladd Canyon. Comment
  SBBG93057  Polygala cornuta var. fishiae S. D. White 1990-6-16 Riverside E wall of Hagador Cyn, near mouth of cyn Comment
  SD130270  Polygala cornuta var. fishiae Scott White 1990-6-16 Riverside Cleveland National Forest, east wall of Hagador Canyon, foot of west-facing slope, near mouth, on private land just inside of the Forest boundary 395 Comment
  UCD170929  Polygala cornuta var. fishiae A. C. Sanders; T. B. Salvato, Kent Beaman 2011-11-3 39941 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail. Chaparral on ridge along road, with knobcone pine grove. 1143 Comment
  UCR189801  Polygala cornuta var. fishiae Amy Rowland 2007-5-8 067 Riverside Peninsular Range, Santa Ana Mountains Region, Tin Mine Canyon c. 4 mi southwest of city of Corona, in drainage near Tin Mine trail 427 Comment
  UCR19206  Polygala cornuta var. fishiae John C. Roos 1960-5-30 s.n. Riverside Peninsular Range/Santa Ana Mtns., ridge east of Sugarloaf [=Pleasants Peak] 1067 Comment
  UCR62864  Polygala cornuta var. fishiae Scott D. White 1990-6-16 s.n. Riverside Santa Ana Mtns, Cleveland National Forest, private land just inside the Forest boundary; E wall of Hagador Canyon, near the mouth of the canyon 400 Comment
  IRVC3044  Polypodium californicum A. S. Boughey, P. Pembrook 1965-6-15 1043 Orange Silverado Canyon, Cleveland Nat. For., near reservoir, stream bank in chaparral, riparian woodland, recently cleared for reservoir. Santa Ana Mountains Comment
  RSA162794  Polypodium californicum J. D. Olmsted 1959-4-23 459 Riverside Spring Trail at Beacon Pines Ranch; 9 mi. SW of Corona, Santa Ana Mountains 732 Comment
  UCR26975  Polypodium californicum E. W. Lathrop 1966-5-8 6466 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  CAS-BOT-BC356161  Porophyllum gracile James R. Shevock 1978-4-26 5883 Riverside Along Skyline Road. Santa Ana Mountains, Cleveland National Forest 365 Comment
  LA102386  Porophyllum gracile John C. Roos; 1950-5-6 4789 Riverside Santa Ana Mountains, Tin Mine Canyon 609 Comment
  RSA1556  Porophyllum gracile J. T. Howell 1928-7-10 1047 Riverside Hidden Canyon, Santa Ana Mts. 396 Comment
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Apr 24 2013
  RSA220967  Porophyllum gracile E. W. Lathrop 1966-4-18 6188 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA320351  Porophyllum gracile J. R. Shevock 1978-4-26 5883 Riverside Along Skyline Road, Santa Ana Mtns, Cleveland National Forest. 366 Comment
  RSA783821  Porophyllum gracile J. D. Olmsted 1959-4-17 396 Riverside 1/4 miles above Fire Gate along Skyline Drive, 5 miles SW of Corona. Santa Ana Mtns to Santa Ana River. 457 Comment
  UCR19541  Porophyllum gracile John C. Roos 1950-5-6 4789 Riverside Santa Ana Mtns., Tin Mine Canyon 488 Comment
  UCR26999  Porophyllum gracile E. W. Lathrop 1966-4-18 6188 Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  RSA160537  Prunus ilicifolia J. D. Olmsted 1959-4-12 369 Riverside 2.5 mi. up Oak flat fire road, having turned off Hw. 91 S. on Lincoln in w. Corona, west of Chase dr. to wash, then south. Drainage Area N to Santa Ana R.[River] 671 Comment
  RSA220993  Prunus ilicifolia E. W. Lathrop 1966-4-18 6189 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. Comment
  RSA5316  Prunus ilicifolia B. D. Stark 1933-1-5 4499 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  RSA542401  Prunus ilicifolia Fred M. Roberts Jr. 1986-11-5 3209 Orange Main Divide Truck Trail, 1.8 km WNW Pleasants Peak. 1130 Comment
  UCR16763  Prunus ilicifolia R. Cooper 1968-5-5 s.n. Riverside Santa Ana Mtns., Tin Mine Canyon Comment
  CAS-BOT-BC356597  Pseudognaphalium biolettii Carl B. Wolf 1932-2-11 2645 Riverside Santa Ana Mts., Hidden Canyon, 5 mi. West of Corona, base of Skyline Drive 405 Comment
  CAS-BOT-BC356598  Pseudognaphalium biolettii Carl B. Wolf 1932-2-11 2644 Riverside Santa Ana Mts., Hidden Canyon, 5 mi. West of Corona, base of Skyline Drive 405 Comment
  RSA160476  Pseudognaphalium biolettii J. D. Olmsted 1959-4-17 408 Riverside At edge of main knobcone pine grove on NE ridge of Sugarloaf Pk. along Main Divide T.T. ssw of Corona. 1159 Comment
  RSA3115  Pseudognaphalium biolettii C. B. Wolf 1932-2-11 2644 Riverside Hidden Canyon 5 mi. W. of Corona at base of Santa Ana Mts. 405 Comment
  RSA3116  Pseudognaphalium biolettii C. B. Wolf 1932-2-11 2645 Riverside Hidden Canyon 5 mi. W. of Corona at base of Santa Ana Mts. 405 Comment
  SD27984  Pseudognaphalium biolettii Carl B. Wolf 1932-2-11 Riverside Santa Ana Mts., Hidden Canyon, 5 miles west of Corona, base of Skyline Drive. 405 Comment
  UC1118482  Pseudognaphalium californicum A. Lewis 1934-3-1 316 Riverside Tin Mine Canyon Cleveland National Forest, Corona Quadrangle, Tin Mine Canyo 609 Comment
  OBI16414  Pseudognaphalium microcephalum Tracey & Viola Call, Viola Call 1962-4-13 2130 Riverside Tin Mine Cyn near Corona Comment
  CAS-BOT-BC80057  Pseudotsuga macrocarpa E. W. Lathrop 1976-11-1 7603 Los Angeles North slope of Pleasant Peak, Main Divide Truck Trail Comment
  RSA220975  Pseudotsuga macrocarpa E. W. Lathrop 1966-3-23 6111 Riverside 4 miles west of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive. 1220 Comment
  RSA58830  Pseudotsuga macrocarpa R. Weatherby 1950-2-2 s.n. Riverside Canyon, southeast of Sierra Peak, Santa Ana Mts. Comment
  CLARK-A1528-5672  Psoralea physodes John C. Roos 1960-5-30 Riverside Santa Ana Mountains 1219 Comment
  CLARK-A1528-5673  Psoralea physodes John C. Roos 1960-5-30 Riverside Santa Ana Mountains 1219 Comment
  UCR18981  Psoralea physodes John C. Roos 1960-5-30 s.n. Riverside Santa Ana Mtns., Ridge north of Bedford Peak. 1220 Comment
  RSA733702  Pteridium aquilinum Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts Comment
  RSA263723  Pteridium aquilinum var. pubescens R. Weatherby 1950-5-18 2968 Riverside Hagador 640 Comment
  RSA588892  Pteridium aquilinum var. pubescens Fred M. Roberts 1990-6-4 4662 Orange Santa Ana Mts. Hall Canyon, 1.8 km NNW Mustand Spring at east edge of flying B Ranch. 421 Comment
  RSA698489  Pterostegia drymarioides Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA698490  Pterostegia drymarioides R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  CDA40753  Pycnanthemum californicum C. R. Tower Jun 1954 s.n. Riverside In a canyon on the north side of the Santa Ana Mountains, facing towards Corona. 0 Comment
  UC1135500  Quercus X acutidens A. Lewis Mar 1934 354 Riverside Sugarloaf Peak Cleveland National Forest, Corona Quad. 1066 Comment
  RSA1494  Quercus X grandidentata E. R. Johnson 1929-4-11 1263 Orange Sierra Peak Trail. Comment
  A356947  Quercus agrifolia C. B. Wolf & B. D. Stark 1932-12-19 4432 Unknown Santa Ana Mts., Skyline Drive, Black Star Canyon, 2 mi. below summit 609 Comment
  RSA476865  Quercus agrifolia Thekla Mohr 1939-4-7 288 Orange Corona Skyline Road Comment
  RSA5283  Quercus agrifolia Carl B. Wolf, B. D. Stark 1932-12-19 4432 Orange Skyline Drive, Black Star Canyon, 2 miles below summit 610 Comment
  UC1135315  Quercus agrifolia A. Lewis 1934-3-4 312 Riverside Tin Mine Canyon Cleveland National Forest, Corona Quad. 304 Comment
  UCR270755  Quercus agrifolia T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8368 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  RSA171930  Quercus berberidifolia Robert F. Thorne 1963-7-26 32828 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA172202  Quercus berberidifolia Robert F. Thorne 1963-7-26 32840 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Cleveland National Forest 854 Comment
  RSA221004  Quercus berberidifolia E. W. Lathrop 1966-5-8 6482 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  SEINET13297596 Image available Quercus berberidifolia T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-1 8349 Riverside Santa Ana Mountains: unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway (Corona South 7.5' Q.) 424 Comment
  UCR231198  Quercus berberidifolia A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39930 Riverside Peninsular Range; Santa Ana Mtns., near Sierra Peak on dirt road (Leonard Rd.) from Skyline Drive, c. 1/4 mile east of the Orange Co. line 884 Comment
  UCR231345  Quercus berberidifolia A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39935 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1152 Comment
  UCR270763  Quercus berberidifolia T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8383 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  UCR271512  Quercus berberidifolia T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8349 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  UCD45547  Quercus chrysolepis E. W. Lathrop 1966-3-23 6112 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peakm Skyline Drive, Riverside Co. Elevation 4000'. 1219 Comment
  UCR15232  Quercus chrysolepis E. W. Lathrop 1966-3-23 6112 Riverside Santa Ana Mtns, Skyline Drive, 4 mi west of Corona between Tin Mine Canyon and Santiago Peak 610 Comment
  UC1135896  Quercus wislizeni H. E. Norton 1931-3-20 42 Orange ridge between Ladd Canyon and East Fork Canyon; Corona Quad. 1036 Comment
  UCR231344  Quercus wislizeni A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39934 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1152 Comment
  RSA162838  Quercus wislizeni var. frutescens J. D. Olmsted 1959-4-17 403 Riverside Sugarloaf Peak along Main Divide Motorway 100yd. east of Radar station turnoff. Santa ana Mtns. 1128 Comment
  RSA160430  Rafinesquia californica J. D. Olmsted 1959-4-23 471 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  RSA220970  Rafinesquia californica E. W. Lathrop 1966-4-18 6178 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA220971  Rafinesquia californica E. W. Lathrop 1966-5-8 6405 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
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Apr 28 2011
  RSA783426  Rafinesquia californica J. D. Olmsted 1959-5-1 526 Riverside Spring Trail on Beacon Pines Ranch, 9 miles SW of Corona. Santa Ana Mts. 770 Comment
  UCD135331  Rafinesquia californica E. W. Lanthrop 1966-5-8 6405 Riverside Santa Ana Mountains. 3 miles southwest of Corona. Hagador Canyon, Cleveland National Forest, Trabuco District. 274 Comment
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Aug 26 2014
  RSA721994  Ranunculus hebecarpus R. Weatherby 1950-5-18 2972 Riverside Hagador 915 Comment
  UCR18915  Ranunculus hebecarpus John C. Roos 1950-5-6 4790 Riverside Santa Ana Mtns., Hagador Canyon 610 Comment
  UCR30480  Ranunculus hebecarpus John C. Roos 1950-5-6 4790 Riverside Santa Ana Mtns., Hagador Canyon 427 Comment
  UCR23232  Raphanus sativus Melody Lardner 1981-5-19 184 Riverside Santa Ana Mtns, Main Street Canyon, 3.5 mi. south of Hwy 91 at the end of Main Street. 427 Comment
  RSA797378  Rhamnus californica Minor Warne 1934-4-7 12 Orange Ladd Canyon Comment
  UCR264076  Rhamnus californica S. J. Myers, Vesta A. Myers, Bill Hopson 2015-1-2 1078 Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon, upper part of canyon, near Corona 732 Comment
  CAS-BOT-BC402199  Rhamnus ilicifolia R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49703 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA175260  Rhamnus ilicifolia Robert F. Thorne 1963-7-26 32819 Riverside Santa Ana Mts., Cleveland National Forest, Trabuco District 305 Comment
  RSA221041  Rhamnus ilicifolia E. W. Lathrop 1966-5-8 6433 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 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
  UCR264472  Rhamnus ilicifolia S. J. Myers, Vesta A. Myers, Bill Hopson 2015-1-2 1073 Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon, lower part of canyon, near Corona 427 Comment
  UCR26629  Rhamnus ilicifolia E. W. Lathrop 1966-5-8 6433 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
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Apr 28 2011
  UCR270307  Rhamnus ilicifolia T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8375 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  UCR4789  Rhamnus ilicifolia Ronald Somerby 1966-7-8 s.n. Riverside Santa Ana Mtns., mouth of Tin Mine Canyon, 3.6 mi. SW of Corona 427 Comment
  UCR241070  Rhus aromatica Dick Newell, Judy Booth 2013-3-24 322 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Rd./Silverado Cyn. Rd., 1.5 miles above Maple Springs gate 673 Comment
  POM257050  Rhus integrifolia W. Pequegnat 1940-5-26 s.n. Orange Black Star Canyon, Santa Ana Mts. 609 Comment
  RSA221023  Rhus integrifolia E. W. Lathrop 1966-3-23 6074 Riverside Skyline Drive, 4 mi. W of Corona, Tine Mine Canyon 306 Comment
  UCR26962  Rhus integrifolia E. W. Lathrop 1966-3-23 6074 Riverside Peninsular Range; Santa Ana Mtns, Skyline Drive, 4 mi west of Corona between Tin Mine Canyon and Santiago Peak 610 Comment
  CAS-BOT-BC167935  Rhus ovata Munz; Harwood 1920-2-28 3263 Riverside 2 mi. S.W. of Corona 304 Comment
  CLARK-A1528-118  Rhus ovata I. Rauch 1968-5-14 Riverside Santa Ana Mountains Comment
  HSC3149  Rhus ovata S. M. Clapp 1966-4-10 30 Orange 4 mi. into Black Star Canyon 183 Comment
  POM8688  Rhus ovata P. A. Munz, Harwood 1920-2-28 3263 Riverside 2 mi. southwest of Corona. 305 Comment
  RSA171932  Rhus ovata R. F. Thorne 1963-7-26 32857 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest. 732 Comment
  RSA403686  Rhus ovata E. Crow 1929-4-7 290 Riverside Santa Ana Mountains, Corona Skyline Drive. Comment
  RSA696478  Rhus ovata Anonymous 1933-5-6 s.n. Orange Black Star Canyon [county not specified] Comment
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Jun 10 2012
  RSA701660  Rhus ovata Anonymous 1929-12-1 s.n. Orange Black Star Canyon Comment
  RSA731004  Rhus ovata Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6506 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. Abandoned homestead with persistant conifer plantings, some species spreading into surrounding chaparral. 852 Comment
  RSA787501  Rhus ovata R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49695 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  UCR115381  Rhus ovata June Latting 1978-5-4 s.n. Riverside Santa Ana Mountains, Sierra Peak 929 Comment
  UCR16586  Rhus ovata K. S. Gill 1965-4-16 s.n. Riverside Santa Ana Mtns., Tin Mine Canyon at the foot of Skyline Drive, south of Corona 459 Comment
  UCR270306  Rhus ovata T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8372 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  CAS-BOT-BC92347  Ribes amarum James R. Shevock 1978-4-26 5905 Riverside Along the northeast side of Pleasants Peak. Santa Ana Mountains, Cleveland National Forest. 1188 Comment
  UC1127366  Ribes amarum A. Lewis Mar 1934 352 Riverside Sugarloaf Peak Cleveland National Forest, Corona Quadrangle Comment
  UC1127367  Ribes amarum A. Lewis Mar 1934 351 Riverside Sugarloaf Peak Cleveland <National Forest>, Corona Quadrangle Comment
  RSA162821  Ribes californicum var. californicum J. D. Olmsted 1959-2-28 s.n. Riverside Turn S on Lincoln in W Corona, after 3 miles turn W on Chase Dr, then S on Oak Flat fire road for 4 miles past olive trees. Santa Ana Mts, N to Santa Ana River. 808 Comment
  CAS-BOT-BC93061  Ribes californicum var. hesperium B. D. Stark 1930-2-21 1470 Riverside Hidden Canyon near Corona. Santa Ana Mountains. Comment
  CAS-BOT-BC93062  Ribes californicum var. hesperium B. D. Stark 1930-2-21 1470 Riverside Hidden Canyon near Corona. Santa Ana Mountains. Comment
  CAS-BOT-BC93063  Ribes californicum var. hesperium Carl B. Wolf 1932-2-11 2642 Riverside Hidden Canyon, 5 miles west of Corona. Santa Ana Mountains. Base of Skyline Drive. 405 Comment
  RSA162815  Ribes californicum var. hesperium J. D. Olmsted 1959-2-28 s.n. Riverside Turn S on Lincoln in W Corona, after 3 miles turn W on Chase Dr, then S on Oak Flat fire road for 4 miles past Olive trees. Santa Ana Mts. 793 Comment
  RSA476256  Ribes californicum var. hesperium E. Crow 1929-4-7 319 Orange Corona skyline Drive, Santa Ana Mts Comment
  RSA787499  Ribes californicum var. hesperium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49707 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UC484124  Ribes californicum var. hesperium B. D. Stark 1930-2-21 1470 Riverside near Corona (Hidden Canyon); Santa Ana Mts. Comment
  UCD169740  Ribes californicum var. hesperium R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49693 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  UCR23251  Ribes californicum var. hesperium John C. Roos 1965-6-19 s.n. Riverside Peninsular Range; Santa Ana Mtns, Sky Line Drive, south of Corona Comment
  UCR250134  Ribes californicum var. hesperium Dick Newell, Judy Booth 2013-12-25 345 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest, 1.5 miles NE of Maple Springs gate 722 Comment
  CAS-BOT-BC173125  Ribes indecorum B. D. Stark 1930-2-21 1475 Orange Black Star Creek 457 Comment
  CAS-BOT-BC173138  Ribes indecorum Carl B. Wolf 1932-2-11 2650 Riverside Santa Ana Mts., Hidden Canyon, 5 mi. West of Corona, base of Skyline Drive 405 Comment
  RSA1175  Ribes indecorum B. D. Stark 1930-2-21 1475 Orange Black Star Creek. 457 Comment
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Sep 5 2013
  RSA162689  Ribes indecorum J. D. Olmsted 1960-1-9 1093 Orange Hidden Ranch at Old Indian Campground, Santa Ana Mts. Black Star Creek. 640 Comment
  RSA221071  Ribes indecorum E. W. Lathrop 1966-3-23 6113 Riverside 4 miles west of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive. 1220 Comment
  RSA3121  Ribes indecorum Carl B. Wolf 1932-2-11 2650 Riverside Hidden Canyon 5 mi. W. of Corona at base of Santa Ana Mts. 405 Comment
  RSA5409  Ribes indecorum Carl B. Wolf 1932-12-19 4440 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA543964  Ribes indecorum Steve Boyd, Orlando Mistretta 1991-5-9 6195 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA608240  Ribes indecorum Steve Boyd, Bart O Brien 1998-1-13 10074 Orange Santa Ana Mountains: north end of the range, saddle between Mabey and Fremont canyons, along Main Divide Road ( 3S04) ca. 1.0 mi N of Oak Flat. 883 Comment
  UC484197  Ribes indecorum B. D. Stark 1930-2-21 1475 Orange Black Star Creek 457 Comment
  UCR60643  Ribes indecorum C. B. Wolf 1932-2-11 02650 Riverside Santa Ana Mtns, Hidden [Tin Mine] Canyon, 5 mi. west of Corona, base of Skyline Drive. 405 Comment
  CAS-BOT-BC168943  Ribes malvaceum James R. Shevock 1975-4-6 4138 Orange Along Black Star Canyon Road above Hidden Ranch, Santa Ana Mountains 670 Comment
  CAS-BOT-BC168944  Ribes malvaceum James R. Shevock 1978-4-26 5899 Orange Along the divide road, FS 3S04 in the vicinity of Sierra Peak, Santa Ana Mountains, Cleveland National Forest 1097 Comment
  CAS-BOT-BC168948  Ribes malvaceum Carl B. Wolf 1932-2-11 2651 Riverside Santa Ana Mts., Hidden Canyon, 5 mi. west of Corona, base of Skyline Drive 405 Comment
  CAS-BOT-BC168949  Ribes malvaceum Carl B. Wolf 1932-2-11 2643 Riverside Santa Ana Mts., Hidden Canyon, 5 mi. west of Corona, base of Skyline Drive 405 Comment
  CAS-BOT-BC402201  Ribes malvaceum R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  IRVC14219  Ribes malvaceum Gordon A. Marsh, K. Conrey 1975-2-19 s.n. Orange Santa Ana Mtns: Skyline Dr, just beyond Beek's Place heading S, just inside Cleveland NF. Peninsular Ranges 915 Comment
  UC1127274 Image available Ribes malvaceum A. Lewis 1934-3-4 311 Riverside Tin Mine Canyon Cleveland National Forest, Corona Quadrangle Comment
  UCR16472  Ribes malvaceum I. G. Rauch 1968-2-15 s.n. Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon 488 Comment
  UCR60639  Ribes malvaceum C. B. Wolf 1932-2-11 02643 Riverside Santa Ana Mtns, Hidden [Tin Mine] Canyon, 5 mi. west of Corona, base of Skyline Drive. 405 Comment
  UCSB7025  Ribes malvaceum var. malvaceum Gill, Robert 1959-3-14 Riverside Santa Ana Mtn Range; Road to Black Star Canyon; Oak flat; from Corona site 365 Comment
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Nov 24 2014
  A380385  Ribes malvaceum var. viridifolium C. B. Wolf 1932-2-11 2651 Unknown Santa Ana Mts., Hidden Canyon, 5 mi. west of Corona, base of Skyline Drive 405 Comment
  OBI5780  Ribes malvaceum var. viridifolium Carl B. Wolf 1932-2-11 2651 Riverside Santa Ana Mts, Hidden cyn, 5 mi W of Corona, Base of Skyline Dr Comment
  RSA1179  Ribes malvaceum var. viridifolium B. D. Stark 1930-2-21 1649 Riverside Hidden Canyon, near Corona, Santa Ana Mts. Comment
  RSA162685  Ribes malvaceum var. viridifolium J. D. Olmsted 1959-2-28 s.n. Riverside Turn S on Lincoln in W Corona, after 3 miles turn W on Chase Dr, then S on Oak Flat fire road for 4 miles past Olive trees. Santa Ana Mts. 793 Comment
  RSA162690  Ribes malvaceum var. viridifolium J. D. Olmsted 1960-2-22 1104 Riverside Up Tin Mine Canyon, first side canyon to the left with mining lcaim past jct with Hgador Canyon, Santa Ana River. 389 Comment
  RSA221080  Ribes malvaceum var. viridifolium E. W. Lathrop 1966-5-8 6424 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA3114  Ribes malvaceum var. viridifolium Carl B. Wolf 1932-2-11 2643 Riverside Hidden Canyon 5 mi. W. of Corona at base of Santa Ana Mts. 405 Comment
  RSA3122  Ribes malvaceum var. viridifolium Carl B. Wolf 1932-2-11 2651 Riverside Hidden Canyon 5 mi. W. of Corona at base of Santa Ana Mts. 405 Comment
  RSA787498  Ribes malvaceum var. viridifolium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SD27979  Ribes malvaceum var. viridifolium Carl B. Wolf 1932-2-11 Riverside Santa Ana Mts., Hidden Canyon, 5 mi. west of Corona, base of Skyline Drive. 405 Comment
  UC2042139  Ribes malvaceum var. viridifolium R. F. Thorne and C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  UC729694 Image available Ribes malvaceum var. viridifolium Carl B. Wolf 1932-2-11 2651 Riverside 5 mi w Corona (base of Skyline Drive); Santa Ana Mts., Hidden Canyon 405 Comment
  UCD169741  Ribes malvaceum var. viridifolium R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  UCR241071  Ribes malvaceum var. viridifolium Dick Newell, Judy Booth 2013-3-24 323 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Rd./Silverado Cyn. Rd., 1.5 miles above Maple Springs gate 673 Comment
  CAS-BOT-BC144475  Ribes speciosum James R. Shevock 1975-4-6 4144 Riverside in the chaparral along Skyline Drive, FS road 4S12. Santa Ana Mountains, Cleveland National Forest 548 Comment
  CAS-BOT-BC173741  Ribes speciosum James R. Shevock 1978-4-26 5902 Orange Along FS road 3S04 between Beeks Place and Black Star Canyon Road. Santa Ana Mountains, Cleveland National Forest 914 Comment
  CLARK-A1528-837  Ribes speciosum Robert A. Clark 1966-3-19 2-31966 Riverside Corona Comment
  OBI14008  Ribes speciosum Tracey & Viola Call, Viola Call 1962-3-21 2100 Riverside Tin mine Cyn, near roaside Comment
  RSA162813  Ribes speciosum J. D. Olmsted 1958-3-4 20 Orange Small pond with westward drainage into Irvine lake, 250yards. West of Oak Flat fire road intersection, which is 9 miles southeast of Corona in Santa Ana Mts. 793 Comment
  RSA162822  Ribes speciosum J. D. Olmsted 1959-2-28 s.n. Riverside Turn S on Lincoln in west Corona, after 3 miles turn W on Chase Dr, s on Oak flat fire road for 4 miles past Olive trees at Oak Flat, Santa Ana Mts. 823 Comment
  RSA221070  Ribes speciosum E. W. Lathrop 1966-3-23 6087 Riverside 4 miles west of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive. 610 Comment
  RSA608233  Ribes speciosum Steve Boyd, Bart O'Brien 1998-1-13 10067 Orange Santa Ana Mountains: north end of the range, saddle between Mabey and Fremont canyons, along Main Divide Road ( 3S04) ca. 1.0 mi N of Oak Flat. 884 Comment
  RSA733954  Ribes speciosum Unspecified 1934-2-11 s.n. Orange Black Star Canyon Rd. Comment
  UCR108368  Ribes speciosum Steve Boyd, B. O'Brien 1998-1-13 10067 Orange Santa Ana Mtns, N end of the Santa Ana Range, head of Mabey Canyon, along Main Divide Road (3S04) about 0.5 mi north of Oak Flat 845 Comment
  UCR26636  Ribes speciosum E. W. Lathrop 1966-3-23 s.n. Riverside Santa Ana Mtns, Skyline Drive, 4 mi west of Corona between Tin Mine Canyon and Santiago Peak 610 Comment
  UCR270751  Ribes speciosum T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8380 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  UCR4191  Ribes speciosum R. H. Sauer 1965-5-3 s.n. Orange Peninsular Range; Santa Ana Mtns., on roadside about 150 ft from Riverside County line, on Chase Drive [Corona, = Skyline Dr.; +- at Oak Flat] 823 Comment
  UCSB7023  Ribes speciosum Gill, Robert 1959-3-14 Riverside Road to Black Star Canyon; Santa Ana Mt. Range 365 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
  UCSB9364  Ribes speciosum Gill, Robert 1959-4-17 Riverside 8 mi south of West Corona on the Oak Flats Fire Road; Santa Ana Mt Range 822 Comment
  UCR4163  Ricinus communis R. H. Sauer 1965-4-30 s.n. Riverside Peninsular Range, Intersection of Chase Drive and Skyline Drive, 3.5 mi SW of Corona 244 Comment
  RSA171108  Romneya coulteri Robert F. Thorne 1963-7-26 32841 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mountains, Cleveland National Forest. 762 Comment
  RSA221054  Romneya coulteri E. W. Lathrop 1966-5-1 6255 Riverside Tin Mine Canyon, Santa Ana Mountains 3 miles west of Corona. Comment
  RSA221055  Romneya coulteri E. W. Lathrop 1966-5-8 6430 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA262064  Romneya coulteri E. W. Lathrop 1966-3-23 6079 Riverside Skyline Drive, 4 mi. W of Corona, Tine Mine Canyon 305 Comment
  RSA263758  Romneya coulteri E. W. Lathrop 1967-4-14 6180 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. Comment
  RSA722425  Romneya coulteri Minor Warne 1934-4-21 s.n. Orange Junction Santiago and Black Star Canyons. Comment
  SD130245  Romneya coulteri Scott White 1990-6-16 Riverside Cleveland National Forest, on private land just inside the Forest boundary. East wall of Hagador Canyon, near the mouth of the canyon. 395 Comment
  UC1126495  Romneya coulteri H. E. Norton 1931-3-6 36 Orange Baker Canyon 609 Comment
  UCR141678  Romneya coulteri June Latting 1980-5-20 s.n. Riverside Peninsular Range, Santa Ana Mountains, Skyline Drive in Tin Mine Canyon, south of Sierra Peak 671 Comment
  UCR251867  Romneya coulteri M. A. Voeltz 2014-5-25 s.n. Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon near Corona, Cleveland National Forest, Trabuco Ranger District 403 Comment
  UCR264074  Romneya coulteri S. J. Myers, Vesta A. Myers, Bill Hopson 2015-1-2 1072 Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon, lower part of canyon, near Corona 427 Comment
  UCR26623  Romneya coulteri E. W. Lathrop 1966-5-1 6255 Riverside Santa Ana Mtns., Tin Mine Canyon, 3 mi. west of Corona Comment
  UCR270314  Romneya coulteri T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8345 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 384 Comment
  UCR62862  Romneya coulteri Scott D. White 1990-6-16 s.n. Riverside Santa Ana Mtns, Cleveland National Forest, private land just inside the Forest boundary; E wall of Hagador Canyon, near the mouth of the canyon 400 Comment
  RSA699219  Rosa californica Jeanne Paxton 1934-4-16 s.n. Riverside Hagador Canyon Comment
  UC1128581  Rosa californica J. B. Spring 1931-3-6 23 Orange Baker Canyon Corona Quadrangle Comment
  RSA444472  Rupertia physodes J. C. Roos 1960-5-30 s.n. Riverside Santa Ana Mountains: Ridge N of Bedford Peak with Calochortus albus, semi shade 1220 Comment
  POM362785  Salix lasiolepis E. Crow 1929-4-7 316 Orange Corona Skyline Drive. Comment
  RSA221066  Salix lasiolepis E. W. Lathrop 1966-3-23 6101 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuca District. 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
  RSA411363  Salvia carduacea N. C. Cooper 1948-4-21 2695 Los Angeles Littlerock Reservoir. 762 Comment
  RSA1566  Salvia leucophylla J. T. Howell 1928-7-10 1095 Orange Black Star Canyon, Santa Ana Mts. 457 Comment
  RSA160467  Salvia leucophylla J. D. Olmsted 1959-4-23 465 Orange Hidden Ranch in Black Star Canyon; 5 miles E of Irvine Lake. Santa Ana Mountains. Drainage area to Irvine Reservoir. 579 Comment
  RSA257047  Salvia leucophylla W. Pequegnat 1940-5-26 s.n. Orange Black Star Canyon, Santa Ana Mts. 610 Comment
  RSA263765  Salvia leucophylla E. W. Lathrop 1967-4-14 6182 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. Comment
  RSA769334  Salvia leucophylla E. W. Lathrop 1974-6-4 7403 Riverside 3 miles southwest of Corona, Cleveland National Forest, Trabuco District 274 Comment
  OBI13539  Salvia mellifera Tracey & Viola Call, Viola Call 1962-4-13 2124 Riverside tin Mine Cyn near Corona 351 Comment
  RSA608239  Salvia mellifera Steve Boyd, Bart O'Brien 1998-1-13 10073 Orange Santa Ana Mountains: north end of the range, saddle between Mabey and Fremont canyons, along Main Divide Road ( 3S04) ca. 1.0 mi N of Oak Flat. 884 Comment
  SEINET11587887  Salvia mellifera T. Salvato, Marcs, Rari 2016-4-26 8358 Riverside Santa Ana Mountains Comment
  UC1124804  Salvia mellifera A. Lewis 1934-3-3 315 Riverside Tin Mine Canyon; Cleveland National Forest, Corona Quad. 609 Comment
  UCR251869  Salvia mellifera M. A. Voeltz 2014-5-25 s.n. Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon near Corona, Cleveland National Forest, Trabuco Ranger District 403 Comment
  UCR271516  Salvia mellifera T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8358 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  CSUSB691  Sambucus mexicana I. Rauch 1968-5-14 Riverside Santa Ana Mountains Santa Ana Mountains Comment
  UCSB6271  Sambucus nigra subsp. caerulea Gill, Robert 1959-3-14 Riverside Road to Black Star Canyon; Santa Ana Mt. Range; Pacific slope Drainage Area 335 Comment
  RSA470833  Sanicula arguta E. Crow 1929-4-7 318 Riverside Santa Ana Mountains, Corona Skyline Drive. Comment
  RSA48925  Sanicula arguta P. A. Munz 1949-5-26 13378 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA48923  Sanicula crassicaulis P. A. Munz 1949-5-26 13380 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA783123  Sanicula crassicaulis J. D. Olmsted 1959-4-23 454 Riverside Spring Trail at Beacon Pines Ranch, 9 miles SW of Corona; Santa Ana Mts. Drainage area: Santa Ana river. 793 Comment
  UC1424822  Sanicula graveolens E. W. Lathrop 1977-4-20 7611 Riverside 4 mi w of Corona (Summit of Santiago Peak, Skyline Drive, between Tin Mine Canyon and Santiago Peak, Skyline Drive); Santa Ana Mountains, Santiago Peak, Skyline Drive Comment
  RSA747274  Scrophularia Orlando Mistretta 1992-6-10 530 Riverside Peninsular Ranges: (Cleveland National Forest) Along old road coming off 3504 W of Sierra Peak. Head of road. Comment
  RSA733713  Scrophularia californica Kenneth Beard 1934-05 s.n. Orange Ladd Canyon. Comment
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Oct 31 2011
  RSA783651  Scrophularia californica J. D. Olmsted 1958-6-10 157 Riverside 6 miles SW of Corona on Oak Flat fire road (turn S from US on Lincoln). Lower Santa Ana Reservoir. 732 Comment
  CAS-BOT-BC333067  Senecio flaccidus var. douglasii James R. Shevock 1976-10-28 5357 Orange Along FS road 3S04 about Bedford Peak, Santa Ana Mountains, Cleveland National Forest 1097 Comment
  RSA783563  Senecio vulgaris J. D. Olmsted 1959-4-30 506 Riverside Drainage area to Santa Ana River. Spring Trail at Beacon Pines Ranch. 9 mi SW of Corona. 793 Comment
  CAS-BOT-BC174888  Silene laciniata J. C. Roos 1965-6-19 s.n. Riverside Sky Line Drive, south of Corona. Santa Ana Mtns. Comment
  CLARK-A1528-2466  Silene laciniata John C. Roos 1965-6-19 Riverside Santa Ana Mountains Comment
  RSA659696  Silene laciniata J. C. Roos 1965-6-19 s.n. Riverside Skyline Drive, S of Corona Comment
  RSA784842  Silene laciniata J. D. Olmsted 1958-6-10 159 Riverside Santa Ana Mountains. Oak Flat Fire road 2 miles NE of Oak Flat and 7 miles SW of Corona (turn from US at Lincoln in South Corona by pottery shop). 777 Comment
  UCSB42107  Silene laciniata subsp. laciniata Roos, John 1981-07 Riverside Sky Line Drive, south of Corona, Santa Ana Mtns. Comment
  RSA175135  Silene laciniata subsp. major R. F. Thorne 1963-7-26 32842 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Santa Ana Mountains, Cleveland National Forest. 762 Comment
  RSA591749  Silene laciniata subsp. major J. C. Roos 1965-6-19 s.n. Riverside Skyline Drive, S of Corona 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
  IRVC7928  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
  RSA263776  Silybum marianum Robert Harvey 1958-4-23 57 Riverside Tin Mine Canyon area, Corona Comment
  UCR264077  Simmondsia chinensis S. J. Myers, Vesta A. Myers, Bill Hopson 2015-1-2 1070 Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon, lower part of canyon, near Corona 427 Comment
  HSC13926  Sisyrinchium bellum S. M. Clapp 1966-4-10 32 Orange 4 mi. into Black Star Canyon 183 Comment
  RSA519216  Sisyrinchium bellum M. Lee Overholtzer 1960-4-17 53 Riverside Santa Ana Mountains, Santa Ana River Drainage Area. On Chase Drive. Comment
  UCSB9450  Sisyrinchium bellum Lloyd, Robert 1959-4-17 Orange Santa Ana Mtn Range; 10 miles south of West Corona on the Oak Flats Fire Road 792 Comment
  UC1125197  Solanum douglasii H. E. Norton 1931-3-6 35 Orange Baker Canyon 609 Comment
  RSA221082  Solanum umbelliferum E. W. Lathrop 1966-5-8 6435 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA5287  Solanum umbelliferum Carl B. Wolf 1932-12-19 4444 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA733740  Solanum umbelliferum Kenneth Beard 1934-03 s.n. Riverside Corona Sky-line drive Comment
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Oct 31 2011
  UCR15975  Solanum umbelliferum K. S. Gill 1965-3-21 s.n. Riverside Santa Ana Mtns., Tin Mine Canyon at the foot of Skyline Drive, south of Corona 457 Comment
  UCR270309  Solanum umbelliferum T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8378 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  RSA787502  Solanum xanti Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49696 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  RSA220957  Solidago californica E. W. Lathrop 1966-3-23 6096 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  RSA263728  Solidago californica E. W. Lathrop 1966-5-17 6519 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive Comment
  RSA801984  Solidago californica Minor Warne 1939-4-7 s.n. Orange Ladd Canyon Comment
  UCR231202  Solidago californica A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39940 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  SD239624  Solidago velutina subsp. californica A. C. Sanders, T. B. Salvato, Kent Beauman 2011-11-3 39940 Orange Peninsular Range; Santa Ana Mountains: near Pleasants Peak along the Main Divide Truck Trail (Corona South 7.5'Q) 1143 Comment
  UCD136089  Solidago velutina subsp. californica E. W. Lathrop 1966-5-17 6519 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. Santa Ana Mountains. Comment
  UCR250137  Solidago velutina subsp. californica Dick Newell, Judy Booth 2013-11-17 342 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, 1.5 mil. NE of Maple Springs gate 701 Comment
  RSA784537  Spergularia atrosperma J. D. Olmsted 1959-4-30 505 Riverside Drainage area to Santa Ana River: Spring Trail at Beacon Pines Ranch. 9 mi SW of Corona. 716 Comment
  RSA783523  Stachys J. D. Olmsted 1959-5-1 522 Riverside Spring Trail from Beacon Pines Ranch (by abandoned trout ponds); 8.5 mi. Southwest of Corona. Santa Ana Mt. Range. 823 Comment
  SEINET11196343  Stachys S. Myers, Hopson, Bill 2013-1-2 1076 Riverside Corona Comment
  UCR264079  Stachys S. J. Myers, Vesta A. Myers, Bill Hopson 2015-1-2 1076 Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon, upper part of canyon, near Corona 732 Comment
  RSA262077  Stachys rigida subsp. quercetorum E. W. Lathrop 1966-5-8 6512 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA263782  Stachys rigida subsp. rigida Robert Harvey 1958-4-23 s.n. Riverside Tin Mine Canyon, Corona. Comment
  RSA681  Stachys rigida subsp. rigida J. T. Howell 1927-7-3 261 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA747279  Stephanomeria Orlando Mistretta 1992-6-10 s.n. Riverside Cleveland National Forest: Along old road coming off 3504 W of San Gabriel Mountains: Northeast slope Mt. San Antonio. Headwaters of west fork of north fork Lytle Creek. Sierra Peak. [Telegraph Peak quad?] Head of road. Comment
  SD240905  Stephanomeria diegensis A. C. Sanders, T. B. Salvato, Kent Bearman 2011-11-3 39929 Riverside Peninsular Range; Santa Ana Mountains: near Sierra Peak on dirt toad (Leonard Rd.) from Skyline Drive, c. 1/4 mile east of the Orange Co. line (Black Star Canyon 7.5'Q) 883 Comment
  UCR231197  Stephanomeria diegensis A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39929 Riverside Peninsular Range; Santa Ana Mtns., near Sierra Peak on dirt road (Leonard Rd.) from Skyline Drive, c. 1/4 mile east of the Orange Co. line 884 Comment
  UCR270311  Stipa coronata T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8354 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  UCR19294  Stipa lepida John C. Roos 1950-5-6 4778 Riverside 2-3 miles SW of Corona Comment
  UCR26655  Stipa lepida E. W. Lathrop 1966-4-18 6179 Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  UCR270759  Stipa lepida T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8353 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  CLARK-A1528-4086  Styrax officinalis John C. Roos 1966-4-23 Riverside Santa Ana Mountains Comment
  UCR24447  Styrax officinalis John C. Roos 1966-4-23 s.n. Riverside Peninsular Range; Santa Ana Mtns, south of Corona 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
  UCR87110  Styrax officinalis var. redivivus Steve Boyd, Orlando Mistretta 1991-5-9 6205 Orange Santa Ana Mtns, Crest of range, south of Oak Flat at Beek's Place on Main Divide Truck Trail at jct with Black Star Canyon Road 854 Comment
  CAS-BOT-BC402192  Styrax redivivus R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49686 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  CAS-BOT-BC48096  Styrax redivivus C. B. Wolf; B. D. Stark 1932-12-19 10014 Orange Main divide of Santa Ana Mts., between Sierra Peak & Skyline Drive. 914 Comment
  CAS-BOT-BC48099  Styrax redivivus J. C. Roos 1966-4-23 s.n. Riverside Santa Ana Mtns. S. of Corona. Assoc. Comment
  RSA160522  Styrax redivivus J. D. Olmsted 1959-4-17 401 Riverside Main Divide Motorway 50 yd. south of Sierra Pk. Gaurd Station along Main Divide Motorway; 9.5 SW of Corona. 854 Comment
  RSA171931  Styrax redivivus Robert F. Thorne 1963-7-26 32849 Orange Near Beek's Spring; Tin Mine Canyon; Trabuco District, Santa Ana Mountains, Cleveland National Forest. 716 Comment
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Apr 25 2011
  RSA221085  Styrax redivivus E. W. Lathrop 1966-4-18 6185 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA263773  Styrax redivivus Robert Harvey H- 85 -66 Orange Tan Mine Canyon. Comment
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Oct 15 2013
  RSA444666  Styrax redivivus J. C. Roos 1966-4-23 s.n. Riverside S of Corona. Assoc. with Quercus dumosa and Rhamnus ilicifolia. Comment
  RSA535089  Styrax redivivus Steve D. Boyd, Orlando Mistretta 1991-5-9 6205 Orange Santa Ana Mountains, crest of range, S of Oak Flats at Beek's Place on Main Divide Truck trail at junction with Black Star Canyon Road. 854 Comment
  RSA5402  Styrax redivivus Carl B. Wolf 1932-12-19 4441 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  UCD169760  Styrax redivivus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49686 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UCSB37352  Styrax redivivus Roos, John 1966-4-23 Riverside Santa Ana Mtns. S. of Corona Comment
  RSA170442  Symphoricarpos mollis J. D. Olmsted 1959-4-30 507 Riverside Beacon Pines Ranch; 9 miles SW of Corona, Santa Ana River Drainage Area. 808 Comment
  RSA220960  Symphoricarpos mollis E. W. Lathrop 1966-5-8 6402 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA220963  Symphoricarpos mollis E. W. Lathrop 1966-4-18 6177 Orange Santa Ana Mountains, 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA262082  Symphoricarpos mollis E. W. Lathrop 1966-5-8 6442 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA543969  Symphoricarpos mollis Steve Boyd, Orlando Mistretta 1991-5-9 6200 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA696580  Symphoricarpos mollis Olive Van Meter s.n. Orange Black Star Canyon. Comment
  RSA696584  Symphoricarpos mollis R. H. McArthur 1934-4-7 s.n. Orange Ladd Canyon. Comment
  UCR26982  Symphoricarpos mollis E. W. Lathrop 1966-5-8 6402 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  UCR26986  Symphoricarpos mollis E. W. Lathrop 1966-4-18 6177 Orange Santa Ana Mtns., Black Star Canyon Comment
  RSA221027  Tauschia arguta E. W. Lathrop 1966-3-23 6097 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA49094  Tauschia arguta P. A. Munz 1949-5-26 13376 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  UCR26996  Tauschia arguta E. W. Lathrop 1966-3-23 6097 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  CAS-BOT-BC340042  Tetradymia comosa B. D. Stark 1930-2-21 1477 Riverside Hidden Canyon, Santa Ana Mts. near Corona Comment
  POM320342  Tetradymia comosa Greg Wright 1971-7-6 244 Riverside Corona Skyline Dr. southwest of Corona, at the base of the Santa Ana Mts. Cleveland Natl. Forest. Comment
  RSA1357  Tetradymia comosa B. D. Stark 1930-2-21 724 Riverside Hidden Canyon, near Corona, Santa Ana Mts. Comment
  RSA747277  Tetradymia comosa Orlando Mistretta 1992-6-10 514 Riverside Cleveland National Forest: Along old road coming off 3504 W of San Gabriel Mountains: Northeast slope Mt. San Antonio. Headwaters of west fork of north fork Lytle Creek. Sierra Peak. [Telegraph Peak quad?] Head of road. Comment
  UCSB7014  Thalictrum fendleri var. polycarpum Lloyd, Robert 1959-4-17 Orange 10 miles south of West Corona, on the Oak Flats Fire Road; Mt. Range: Santa Ana 792 Comment
  RSA543968  Thalictrum polycarpum Steve Boyd, Orlando Mistretta 1991-5-9 6199 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA122516  Toxicodendron diversilobum J. B. Spring 1931-3-23 27 Orange Corona Comment
  RSA696224  Toxicodendron diversilobum Anonymous 1936-4-5 s.n. Orange Black Star canyon, Santa Ana Mts Comment
  RSA696225  Toxicodendron diversilobum Anonymous 1936-4-5 608 Orange Black Star canyon, Santa Ana Mts Comment
  RSA12897  Trichostema lanatum E. R. Johnson 1935-1-14 62287 Orange Ridge between Sierra Pk. and Skyline Drive, Santa Ana Mtns. 854 Comment
  RSA160459  Trichostema lanatum John Olmsted 1958-6-10 161 Riverside 10 miles SW of Corona on Oak Flat fire road and 1 mile past Oak Flat towards Sierra Peak. (Turn S in Corona from US onto Lincoln). 869 Comment
  RSA171014  Trichostema lanatum Robert F. Thorne 1963-7-26 32834 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA5285  Trichostema lanatum Carl B. Wolf 1932-12-19 4437 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA660534  Trichostema lanatum Orlando Mistretta 1992-6-10 526 Riverside Peninsular Ranges: (Cleveland National Forest) Along old road coming off 3504 W of Sierra Peak. Head of road. Comment
  RSA699168  Trichostema lanatum Kenneth Beard 1934-05 s.n. Orange Ladd Canyon. Comment
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Oct 31 2011
  UCR16810  Trichostema lanatum Frederick Neill 1977-5-28 52805 Orange Santa Ana Mtns, near top of Black Star Cyn Rd., just below Forest Station Comment
  RSA12755  Trichostema parishii Carl B. Wolf 1933-8-24 6106 Orange Santa Ana Mountains; Along main divide near Bedford Peak. 1067 Comment
  RSA7397  Trichostema parishii Carl B. Wolf 1933-8-24 5381 Orange Santa Ana Mountains; Along main divide near Bedford Peak. 1067 Comment
  RSA162750  Umbellularia californica J. D. Olmsted 1959-4-17 414 Riverside Sugarloaf Peak along the Main Divide TT, just north of the new radar station at the head of Hagador Canyon, Santa Ana Mtns 1143 Comment
  RSA171934  Umbellularia californica R. F. Thorne 1963-7-26 32848 Orange Near Beek's Spring; Tin Mine Canyon; Trabuco District, Santa Ana Mountains, Cleveland National Forest. 716 Comment
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Apr 25 2011
  RSA221034  Umbellularia californica E. W. Lathrop 1966-5-8 6415 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA221038  Umbellularia californica E. W. Lathrop 1966-3-23 6109 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuca District, Orange County Comment
  RSA5310  Umbellularia californica B. D. Stark 1933-1-5 4507 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  UC1126312  Umbellularia californica R. St. John 1931-3-13 194 Riverside Head of Hagador Canyon 1066 Comment
  UCR231343  Umbellularia californica A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39933 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1152 Comment
  UCR234159  Umbellularia californica Dick Newell, Judy Booth 2012-3-25 235 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  UCR26960  Umbellularia californica E. W. Lathrop 1966-3-23 6109 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  RSA783425  Uropappus lindleyi J. D. Olmsted 1959-5-1 523 Riverside Spring Trail on Beacon Pines Ranch, 9 miles SW of Corona. Santa Ana Mts. 823 Comment
  RSA263704  Verbena tenuisecta E. W. Lathrop 1966-5-8 6475 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  UCR26980  Verbena tenuisecta E. W. Lathrop 1966-5-8 6475 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  RSA220983  Vicia americana E. W. Lathrop 1966-3-23 6117 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. 610 Comment
  IRVC24911  Vicia americana var. americana Fred M. Roberts, G. A. Marsh 1986-6-6 2985 Orange Black Star Canyon, Black Star Canyon Rd., 2.7km by road below summit; 3.6km S Sierra Peak, Santa Ana Mountains 646 Comment
  RSA221088  Viola pedunculata E. W. Lathrop 1966-4-28 6232 Riverside 4 mi. west of Corona between Tin mine Canyon and Santiago Peak, Skyline Drive. 610 Comment
  RSA412707  Viola pedunculata E. Crow 1929-4-7 297 Riverside Corona Skyline Drive, Santa Ana Mts. Comment
  RSA801967  Vitis californica R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon. PR8. Comment
  RSA543963  Vulpia microstachys var. ciliata Steve Boyd, O. Mistretta 1991-5-9 6194 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA543962  Vulpia microstachys var. pauciflora Steve Boyd, O. Mistretta 1991-5-9 6193 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA627528  Vulpia microstachys var. pauciflora Sandy Leatherman, Fred Roberts, Brian Leatherman, Trish Smith 1998-5-23 21 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. 335 Comment
  RSA787504  Vulpia myuros var. hirsuta R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49712 Orange Northern Santa Ana Mountains: Sierra Peak 900 Comment
  UCR20691  Yucca whipplei J. N. Bullock 1970-4-18 P 9 Orange Santa Ana Mountains, 150 m SE of the junction of the Main Divide Motorway & Skyline Drive. 835 Comment
  RSA180690  Yucca whipplei var. whipplei Patricia Wilder 1963-5-4 1227 Orange Orange County; Santa Ana Mountians; just inside Cleveland National Forest on Chase Drive by Black Star Creek; near abandoned farm buildings. Comment
  RSA180691  Yucca whipplei var. whipplei Patricia Wilder 1963-5-4 1226 Orange Orange County; Santa Ana Mountians; just inside Cleveland National Forest on Chase Drive by Black Star Creek; near abandoned farm buildings. Comment
  RSA180692  Yucca whipplei var. whipplei Patricia Wilder 1963-5-4 1225 Orange Orange County; Santa Ana Mountians; just inside Cleveland National Forest on Chase Drive by Black Star Creek; near abandoned farm buildings. Comment
  RSA180693  Yucca whipplei var. whipplei Patricia Wilder 1963-5-4 1224 Orange Orange County; Santa Ana Mountians; just inside Cleveland National Forest on Chase Drive by Black Star Creek; near abandoned farm buildings. Comment
  RSA180694  Yucca whipplei var. whipplei Patricia Wilder 1963-5-4 1223 Orange Orange County; Santa Ana Mountians; just inside Cleveland National Forest on Chase Drive by Black Star Creek; near abandoned farm buildings. Comment
  RSA180695  Yucca whipplei var. whipplei Patricia Wilder 1963-5-4 1222 Orange Orange County; Santa Ana Mountians; just inside Cleveland National Forest on Chase Drive by Black Star Creek; near abandoned farm buildings. Comment
  RSA180696  Yucca whipplei var. whipplei Patricia Wilder 1963-5-4 1220 Orange Orange County; Santa Ana Mountians; just inside Cleveland National Forest on Chase Drive by Black Star Creek; near abandoned farm buildings. Comment
  RSA180697  Yucca whipplei var. whipplei Patricia Wilder 1963-5-4 1219 Orange Orange County; Santa Ana Mountians; just inside Cleveland National Forest on Chase Drive by Black Star Creek; near abandoned farm buildings. Comment
  RSA180720  Yucca whipplei var. whipplei Patricia Wilder 1963-5-4 1229 Orange Orange County; Santa Ana Mountians; just inside Cleveland National Forest on Chase Drive by Black Star Creek; near abandoned farm buildings. Comment
  RSA180721  Yucca whipplei var. whipplei Patricia Wilder 1963-5-4 1228 Orange Orange County; Santa Ana Mountians; just inside Cleveland National Forest on Chase Drive by Black Star Creek; near abandoned farm buildings. Comment
  RSA221037  Yucca whipplei var. whipplei E. W. Lathrop 1966-5-8 6436 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA162803  Zigadenus fremontii J. D. Olmsted 1959-4-14 375 Riverside 2 mi. SE of Oak Flat near Orange Co. boundary along side of Santiago Pk. fire rd., Santa Ana Mountains 1067 Comment
  RSA263750  Zigadenus fremontii E. W. Lathrop 1968-5-17 6888 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. 1082 Comment
  RSA49095  Zigadenus fremontii Philip A. Munz 1949-5-26 13376 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  UCR115379  Zigadenus fremontii June Latting 1978-5-4 s.n. Riverside Santa Ana Mountains, Sierra Peak 929 Comment



  Copyright © 2019 Regents of the University of California — Updated 11 January 2019
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