33.57750 33.67750 -117.60944 -117.50944 UC/JEPS: Consortium Search Results
Search Results — 733 specimen records retrieved (733 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
  IRVC16141  Acer macrophyllum R. Meinzer, T. Mulroy 1971-4-25 s.n. Orange Santa Ana Mountains: Upper Trabuco Canyon. Peninsular Ranges Comment
  IRVC23426  Acer macrophyllum Fred M. Roberts 1985-7-26 2087 Orange Santa Ana Mtns: Upper trabuco Cyn, 1.3 km NE Los Pinos Pk. Peninsular Ranges 1225 Comment
  IRVC5  Acer macrophyllum A. S. Boughey 1965-3-5 53 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA16469  Acer macrophyllum Percy C. Everett 1935-6-19 7239 Orange Santa Ana Mts., Trabuco Canyon, 2 6/10 mi. below (W.) summit of truck trail. 915 Comment
  RSA514320  Acer macrophyllum Reid V. Moran, Daniel I. Axelrod, Bob Smart 1975-7-18 22595 Orange Along stream near Yeager Mine, upper Trabuco Canyon. 725 Comment
  RSA7575  Acer macrophyllum Carl B. Wolf 1933-11-8 5541 Orange At Yaeyer's Cabin, Trabuco Canyon. 762 Comment
  RSA797915  Acer macrophyllum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49825 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SD127435  Acer macrophyllum Reid Moran, Jack Reveal and Bob Smart 1975-7-18 22595 Orange Near Yeager Mine, upper Trabuco Canyon, Santa Ana Mountains 725 Comment
  SEINET3195254 Image available Acer macrophyllum P. C. Everett 1935-6-19 7239 Orange Santa Ana Mts., Trabuco Canyon,2 6/10 mi. below (W.) Summit Truck Trail 910 Comment
  UC718396  Acer macrophyllum P. C. Everett 1935-6-19 7239 Orange 2 6/10 mi below (w) Summit Truck Trail; Santa Ana Mts., Trabuco Canyon 914 Comment
  RSA797665  Achnatherum coronatum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49769 Orange Santa Ana Mountains: Trabuco Canyon Comment
  CAS-BOT-BC29185  Acourtia microcephala LeRoy Abrams 1901-6-16 1855 Orange Trabuco Canyon Comment
  POM50881  Acourtia microcephala L. R. Abrams 1901-06 1855 Orange Trabuco Canyon Comment
  RSA788092  Acourtia microcephala R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49626 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  UCD170068  Acourtia microcephala R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49626 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. 214 Comment
  RSA649082  Adenostoma fasciculatum Karl Price 1988-4-29 13 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  UC1544779  Adenostoma fasciculatum D. S. Seigler and E. Rodriguez 1978-5-13 11003 Orange Trabuco Canyon Comment
  RSA124721  Adiantum jordanii E. K. Balls, Percy C. Everett 1957-11-25 22844 Orange Trabuco Canyon, 1.7 mi W of entrance to Holy Jim Canyon. 671 Comment
  RSA771712  Agave americana Robt. Allen, Richard S. Newell, Roger E. Reinke 2006-6-30 s.n. Orange Holy Jim Canyon Trail. Near a small parking area just below forest gate and trailhead. 597 Comment
  RSA689740  Albizia distachya Scott D. White, Brian Leatherman 2003-10-30 9849 Orange Foothills; Oso Parkway crossing over Chiquita Canyon. 198 Comment
  UCR116052  Albizia lophantha Donna Krucki 2001-2-24 s.n. Orange Peninsular Range; Santa Ana Mtns., Caspers Regional Park; San Juan Canyon near confluence of Hot Springs Canyon, Sitton Peak Truck Trail 213 Comment
  UCR149361  Albizia lophantha Scott D. White, Brian Leatherman 2003-10-30 9849 Orange Peninsular Ranges; Santa Ana Mountains region, Foothills; Oso Parkway crossing over Chiquita Canyon 229 Comment
  RSA263729  Allophyllum glutinosum E. W. Lathrop 1974-6-27 7418 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  SEINET6058725  Allophyllum glutinosum E. W. Lathrop 1974-6-27 7418 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon. Cleveland National Forest. Comment
  CAS-BOT-BC170687  Alnus rhombifolia Ira L. Wiggins 1966-2-4 20411 Orange Along immediate margin of Stream above Ranger Station, Trabuco Canyon Comment
  CAS-BOT-BC170689  Alnus rhombifolia C. B. Wolf 1931-3-6 1855 Orange Trabuco Camp grounds, Trabuco Canyon, W slope of the Santa Ana Mts. 609 Comment
  CAS-BOT-BC170690  Alnus rhombifolia C. B. Wolf 1931-3-6 1855 Orange Trabuco Camp grounds, Trabuco Canyon, W slope of the Santa Ana Mts. 609 Comment
  IRVC188  Alnus rhombifolia D. Kaplan, H. R. Williams 1966-1-8 521 Orange [Trabuco Canyon], Lower Trabuco Campground; limited to water courses of canyons. Santa Ana Mountains Comment
  OBI6021  Alnus rhombifolia Carl B. Wolf 1931-3-6 1855 Orange Trabuco camp ground, Trabuco cyn, W slope of Stana Ana Mts 610 Comment
  RSA184109  Alnus rhombifolia I. L. Wiggins 1966-1 20411 Orange along immediate margin of stream above ranger station, Trabuco Canyon Comment
  RSA2074  Alnus rhombifolia C. B. Wolf 1931-3-6 1855 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  RSA708720  Alnus rhombifolia Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6121 Orange Caspers Wilderness Park, Hot Springs Creek in San Juan Cyn., c.a. 0.36km SSW San Juan Ranger Station, at SR 74 crossing. 197 Comment
  SD127314  Alnus rhombifolia Reid Moran, Jack Reveal and Bob Smart 1975-7-18 22597 Orange Near Yaeger Mine, bottom of upper Trabuco Canyon, Santa Ana Mts. 725 Comment
  SDSU12041  Alnus rhombifolia Curtis B. Kendal 1994-5-18 18 V94D Orange South of Bell Canyon Road at the three pipe crossing, in the National Audubon Society Starr Ranch Sanctuary. 308 Comment
  UC484252  Alnus rhombifolia C. B. Wolf 1931-3-6 1855 Orange Trabuco Camp Grounds Santa Ana Mts., Trabuco Canyon (w slope of mts.) Comment
  RSA797669  Amorpha californica Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49773 Orange Santa Ana Mountains: Trabuco Canyon Comment
  SBBG40481  Amsinckia intermedia J. Ingram 1960-3-29 257 Orange 3 mi above O'Neill Park, Trabuco Cyn Comment
  UC1377784  Amsinckia intermedia John Ingram 1960-3-29 257 Orange 3 mi above O'Neill Park; Trabuco Canyon Comment
  IRVC245  Amsinckia menziesii var. intermedia D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  RSA450866  Andropogon glomeratus Gordon Marsh, Karlin G. Marsh 1978-10-11 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. Comment
  RSA708528  Andropogon glomeratus Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6111 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  RSA650901  Antirrhinum kelloggii R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA564285  Antirrhinum nuttallianum subsp. nuttallianum Ed LaRue 1993-5-11 s.n. Riverside Murrieta Oaks, 3 miles (airline) NW of Murrieta Hot Springs, W side oh Hwy 215. 457 Comment
  RSA80436  Antirrhinum nuttallianum subsp. nuttallianum F. W. Peirson 1923-5-5 4489 Orange Trabuco Canyon, Santa Ana Mountains 518 Comment
  A343988  Arbutus menziesii C. B. Wolf 1933-11-8 5534 Unknown Trabuco Canyon on south wall opposite the Trabuco Truck Trail, Santa Ana Mts Comment
  A343989  Arbutus menziesii C. B. Wolf 1933-11-8 5534 Unknown Trabuco Canyon on south wall opposite the Trabuco Truck Trail, Santa Ana Mts Comment
  CAS-BOT-BC128676  Arbutus menziesii Carl B. Wolf 1933-11-8 2008 Orange Trabuco Canyon on south wall opposite the Trabuco Truck Trail, Santa Ana Mts. 914 Comment
  CAS-BOT-BC128677  Arbutus menziesii Carl B. Wolf 1933-11-8 2008 Orange Trabuco Canyon on south wall opposite the Trabuco Truck Trail, Santa Ana Mts. 914 Comment
  GH343962  Arbutus menziesii C. B. Wolf 1933-11-8 5534 Unknown Trabuco Canyon on south wall opposite the Trabuco Truck Trail, Santa Ana Mts. 914 Comment
  IRVC20647  Arbutus menziesii 1971-4-19 Orange Upper Trabuco Canyon. T.V. St. John Santa Ana Mountains Comment
Read comments
Jan 4 2010
  RSA7635  Arbutus menziesii C. B. Wolf 1933-11-8 5534 Orange Trabuco Canyon on So. wall opposite the Trabuco Truck Trail. 915 Comment
  RSA797916  Arbutus menziesii R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49826 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UC527329  Arbutus menziesii Carl B. Wolf 1933-11-8 Orange Trabuco Canyon on s wall opposite Trabuco Truck Trail; Santa Ana Mountains, Trabuco Canyon 914 Comment
  LA42398  Arctostaphylos glandulosa W. Pequegnat; 1938-9-3 sn Orange Santa Ana Mountains, Ortega Rd 731 Comment
  UCD50872  Arctostaphylos glandulosa H. A. Jensen 1937-11-4 415 Orange At head of Trabuco canyon; Cleveland National Forest. 1188 Comment
  RSA629341  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1982-5-23 7732 Orange Along road to Trabuco Mountain. Comment
  RSA797659  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, E. W. Lathrop 1977-5-18 49762 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail Comment
  RSA659895  Arenaria douglasii Karl Price 1988-5-21 47 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  RSA542373  Aristida adscensionis Fred M. Roberts, T. Sholars, B. Stechmeyer s.n. Orange Santa Ana Mountains: Hot Sprinngs Canyon. 1.3 kilometers N Highway 74 by road, 0.7 kilometers NW Juan Rancho Survey Mark., UTM 3717900m N, 452700m E 274 Comment
Read comments
Jul 12 2013
  UCSB16965  Artemisia californica Gerhart, Janet 1963-2-22 Orange 1.5 miles above locked gate on dirt road, Trabuco Canyon, 17.4 miles east of U.S. Highway 101 at El Toro Marine Base, 2.5 miles by air southeast of Santiago Peak 457 Comment
  RSA699634  Astragalus didymocarpus Keith E. Hoffmaster 1935-3-17 s.n. Orange Near El Toro (Trabuco rd.) Comment
  RSA699637  Astragalus didymocarpus Keith E. Hoffmaster 1935-4-19 s.n. Orange Santa Ana Mts. (Trabuco Rd.) Comment
  RSA797666  Astragalus trichopodus subsp. leucopsis Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49770 Orange Santa Ana Mountains: Trabuco Canyon Comment
  CAS-BOT-BC194064  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-6 1860 Orange 1 1/2 miles below Trabuco Camp Ground, Trabuco Canyon, west slope Santa Ana Mts. 548 Comment
  CAS-BOT-BC194065  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-6 1860 Orange 1 1/2 miles below Trabuco Camp Ground, Trabuco Canyon, west slope Santa Ana Mts. 548 Comment
  OBI5666  Astragalus trichopodus var. lonchus Carl B. Wolf 1931-3-6 1860 Orange 1.5 mi below Trabuco Camp Ground, Trabuco Cyn, W slope of Santa Ana Mts 549 Comment
  POM17799  Astragalus trichopodus var. lonchus P. A. Munz 1923-9-7 7770 Orange Mouth of Trabuco Canyon 305 Comment
  RSA2069  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-6 s.n. Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  SJSU419  Astragalus trichopodus var. lonchus A. W. Jacobs 1938-8-4 Orange Trabuco Canyon, Santa Ana Mts c. 6 mi NE of El Toro Comment
  UC284237  Astragalus trichopodus var. lonchus P. A. Munz 1923-9-7 7770 Orange mouth of Trabuco Canyon mouth of Trabuco Canyon (base of limestone cliff) 304 Comment
  UC484247  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-6 1860 Orange 1 1/2 mi below Trabuco Camp Grounds (Trabuco Canyon, w slope Santa Ana Mts.); w slope Santa Ana Mts., Trabuco Canyon 548 Comment
  RSA819108  Atriplex lentiformis subsp. breweri R. F. Thorne 1977-11-21 50821 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  CAS-BOT-BC106732  Baccharis salicifolia Ira L. Wiggins 1966-2-4 20418 Orange Along watercourse near mouth of Trabuco Canyon Comment
  RSA184139  Baccharis salicifolia I. L. Wiggins 1966-2-4 20418 Orange Watercourse near mouth of Trabuco Canyon.Waterfront St. near Mission Rock Terminal, San Francisco Comment
  SBBG40584  Baccharis salicifolia C. Ingram 1960-3-29 256 Orange ca. 3 mi above O'Neill Park, Trabuco Cyn Comment
  RSA797908  Barbarea orthoceras R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49818 Orange Santa Ana Mountains: Trabuco Canyon Comment
  POM17841  Bebbia juncea Philip A. Munz 1923-9-7 7771 Orange Mouth of Trabuco Canyon 305 Comment
  RSA788247  Bothriochloa barbinodis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49623 Orange Santa Ana Mountains: along Ortega Highway (74), about 1/4 mile above San Juan Fire Station Comment
  SD233245  Bothriochloa barbinodis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49623 Orange Santa Ana Mountains: along Ortega Highway (74) about 1/4 mile above San Juan Fire Station. Comment
  UC712166  Bothriochloa barbinodis Charles B. Fiker 1944-7-7 3139 Orange Trabuco Canyon, on Bill Rochester Ranch Trabuco Canyon Comment
  UCD169656  Bothriochloa barbinodis R. F. Thorne; E. W. Lanthrop, W. Wisura 1977-7-8 49623 Orange Santa Ana Mountains: along Ortega Highway (74), about 1/4 mile above San Juan Fire Station. 600 Comment
  RSA731758  Bougainvillea glabra Fred M. Roberts, Sandy Leatherman 2007-11-9 6647 Orange San Juan Canyon along San Juan Creek, within the community of San Juan Hot Springs. 216 Comment
  RSA124713  Brickellia californica E. K. Balls, Percy C. Everett 1957-11-25 22836 Orange 1 mi. NE from Trabuco Oaks. 549 Comment
  GH361711  Bromus carinatus L. Abrams 1903-4-18 3271 Unknown Trabuco arroyo near Capistrano Comment
  CAS-BOT-BC149325  Bromus carinatus var. carinatus Le Roy Abrams 1903-4-18 3271 Orange Trabuco arroyo near Capistrano. Comment
  SD95150  Bromus grandis Jack l. Reveal 1975-7-18 1765 Orange Occasional on dry sites among boulders, riparian zone, Trabuco Canyon 550 Comment
  UCD59511  Bromus rubens Beecher Crampton 1963-5-7 6791 Orange Ca. 11 miles northeast of San Juan Capistrano, State Hwy. 74, Lower San Juan Canyon, Santa Ana Mountains. Comment
  RSA716783  Calamagrostis koelerioides Fred M. Roberts, Carol A. Roberts, Devoree Volgado 1995-5-6 4941 Orange Santa Ana Mountains region: Ridge between Hot Springs Cyn. and Viejo Cyn., San Juan Trail, 3.7 km WNW Lower San Juan Picnic Ground. 622 Comment
  UC1377843  Calandrinia ciliata John Ingram 1960-3-29 260 Orange on roadsides 3 mi above O'Neill Park; Trabuco Canyon Comment
  RSA582810  Calochortus catalinae Mark Elvin 1995-05 4 Orange Santa Ana Mountains: Starr Ranch, National Audubon Society; Bell Creek, junction of Leslie Love Trail. 213 Comment
  RSA582916  Calochortus catalinae Mark Elvin, Helen Kamp 1995-5-5 11 Orange Santa Ana Mountains: Caspers Regional Park; base of ridge N of Bell Creek. 207 Comment
  UCR207998  Calochortus catalinae Mark A. Elvin 1995-1 04 Orange Santa Ana Mtns., Starr Ranch, National Audubon Society; west side of Bell Creek, junction of Leslie Love Trail 213 Comment
  SEINET7067525  Calochortus persistens A. G. Vestal 1947-6-12 s.n. Orange Grade to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 445302mE, 3724321mN. Comment
Read comments
Feb 20 2020
  POM23718  Calochortus splendens Russell S. Woglum 1938-5-8 1617 Orange Ortega Highway between Capistrano and Elsinore. Comment
  RSA651261  Calochortus splendens Russell S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  UCR16063  Calochortus splendens K. T. Ingram 1976-5-2 s.n. Orange Peninsular Range; Santa Ana Mtns., Ortega Highway, Route 74, 12 mi. east of Hwy 405 Comment
  SEINET7067520  Calochortus striatus A. G. Vestal 1947-6-12 s.n. Orange Along a tributary of Arroyo Trabuco. Trabuco Creek. Coordinate datum: NAD27. UTM Zone 11, 444413mE, 3723361mN. Comment
  RSA769610  Calochortus weedii E. W. Lathrop 1974-6-27 7417 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 396 Comment
  SEINET7067518  Calochortus weedii A. G. Vestal 1947-6-12 s.n. Orange Upper San Juan Canyon on Route 74 to Lake Elsinore in Cleveland National Forest. Coordinate datum: NAD27. UTM Zone 11, 452352mE, 3716538mN. Comment
  CAS-BOT-BC132658  Calochortus weedii var. intermedius L. R. Abrams 1901-6-1 1802 Orange Trabuco [Canon] Canyon Comment
  NY1104588  Calochortus weedii var. intermedius L. Abrams 06 1901 1802 Orange Isabuco Canon [Isabuco Canyon] Comment
Read comments
Aug 7 2013
  SEINET7067528  Calochortus weedii var. intermedius A. G. Vestal 1947-6-12 s.n. Orange Between Aliso Creek and Trabuco Canyon on Little Oak Canyon Road. Coordinate datum: NAD27. UTM Zone 11, 444335mE, 3727266mN. Comment
  RSA773548  Calochortus weedii var. weedii Fred M. Roberts, Robert Allen 2008-6-9 7036 Orange Santa Ana Mts.: Hot Spring Canyon, along road, 0.9 km N San Juan Fire Station 255 Comment
  CAS-BOT-BC215758  Calystegia macrostegia subsp. arida R. K. Brummitt 1998-5-23 19994 Orange 17 km NE of San Juan Capistrano on Rte. 74 200 Comment
  CAS-BOT-BC215766  Calystegia macrostegia subsp. arida Le Roy Abrams 1901-6-14 1800 Orange Trabuco Canyon Comment
  POM65980  Calystegia macrostegia subsp. arida L. R. Abrams 1901-6-14 1800 Orange Trabuco Canyon Comment
  RSA710302  Calystegia macrostegia subsp. arida R. K. Brummitt 1998-5-23 19994 Orange 17 km NE of San Juan Capistrano on Rte. 74. 200 Comment
  SD225753  Calystegia macrostegia subsp. arida R. K. Brummitt 1998-5-23 19994 Orange 17 km NE of San Juan Capistrano on Rte. 74 199 Comment
  UC1794974  Calystegia macrostegia subsp. arida R. K. Brummitt 1998-5-23 19994 Orange 17 km NE of San Juan Capistrano on Rte. 74 200 Comment
  IRVC977  Calystegia macrostegia subsp. intermedia E. Cowper 1965-4-16 Orange between Trabuco and [Santiago Canyon]. Santa Ana Mountains Comment
  IRVC982  Calystegia macrostegia subsp. intermedia D. Orr 1965-4-10 Orange Trabuco Road, 3mi E El Toro Marine Base. El Toro Comment
  RSA134574  Camissonia californica Harlan Lewis, M. Lewis 1957-5-19 1001 Orange Cleveland National Forest. Ortega Highway at western boundary of Forest. Comment
  RSA542490  Camissonia micrantha Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3880 Orange Santa Ana Mountains: Hot Springs Canyon, 0.5 km by road north Hwy 74, 0.9 km ESE Juan Rancho Survey Marker. 223 Comment
  RSA733639  Camissonia micrantha R. H. McArthur 1934-5-19 s.n. Orange Trobuca Canyon. Comment
  CAS-BOT-BC37594  Cardamine californica C. B. Wolf 1931-3-6 1851 Orange West slope of Santa Ana Mountains. Trabuco Canyon. Trabuco Camp Ground. 609 Comment
  CAS-BOT-BC37595  Cardamine californica C. B. Wolf 1931-3-6 1851 Orange West slope of Santa Ana Mountains. Trabuco Canyon. Trabuco Camp Ground. 609 Comment
  LA204284  Cardamine californica C. B. Wolf; 1931-3-6 1851 Orange Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts Comment
  OBI6109  Cardamine californica Carl B. Wolf 1931-3-6 1851 Orange Trabuco camp ground, Trabuco cyn, W slope of the Santa Ana Mts 610 Comment
  UC484256  Cardamine californica var. californica C. B. Wolf 1931-3-6 1851 Orange w slope Santa Ana Mts. (Trabuco Camp Grounds, Trabuco Canyon); w slope Santa Ana Mts, Trabuco Canyon, Trabuco Camp Grounds 609 Comment
  RSA2078  Cardamine californica var. integrifolia C. B. Wolf 1931-3-6 1851 Orange Trabuco Canyon at Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  RSA790709  Carex triquetra Keith E. Hoffmaster 1935-4-14 191 Orange Live Oak can. Comment
  RSA1701  Castilleja affinis Carl B. Wolf 1931-3-6 1836 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  SDSU9686  Castilleja affinis subsp. affinis Curtis B. Kendall 1994-5-18 18 VI94B Orange County open-space, 100 meters west fo entrance gate to the National Audubon Society Starr Ranch Sanctuary, on south edge of access road. 317 Comment
  RSA221095  Castilleja applegatei subsp. martinii E. W. Lathrop 1966-5-1 6254 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA400600  Castilleja foliolosa H. L. Bauer 1929-4-20 s.n. Orange Trabuco Canon. Comment
  UCR26637  Castilleja martinii E. W. Lathrop 1966-5-1 6254 Orange Santa Ana Mtns., 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  CAS-BOT-BC50807  Ceanothus integerrimus P. C. Everett 1935-6-19 7236 Orange Santa Ana Mts., Trabuco Canyon, 1 mi. below summit of Truck Trail 1005 Comment
  RSA542418  Ceanothus integerrimus Fred M. Roberts, Karlin G. Marsh 1987-5-14 3440 Orange Santa Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail , 1.3 km NE Los Pinos Peak 1231 Comment
  RSA797906  Ceanothus integerrimus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49816 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA16472  Ceanothus integerrimus var. californicus Percy C. Everett 1935-6-19 7236 Orange Trabuco Canyon, 1mile below W summit of truck trail. 1006 Comment
  RSA698619  Ceanothus megacarpus Dorothy Sammis s.n. Orange Trabuco Canyon. Comment
  RSA25850  Ceanothus oliganthus Carl B. Wolf 1941-8-15 11157 Orange Along the Main Divide Motorway, just N. of head of Trabuco Truck Trail. 1220 Comment
  RSA25861  Ceanothus oliganthus Carl B. Wolf 1941-8-15 11158 Orange Along the Main Divide Motorway, just N. of head of Trabuco Truck Trail. 1220 Comment
  CAS-BOT-BC63561  Ceanothus oliganthus var. orcuttii Carl B. Wolf 1941-8-15 11158 Orange Santa Ana Mts. along main divide motorway just no. of head of Trabuco truck trail. 1219 Comment
  CAS-BOT-BC63562  Ceanothus oliganthus var. orcuttii Carl B. Wolf 1941-8-15 11158 Orange Santa Ana Mts. along main divide motorway just no. of head of Trabuco truck trail. 1219 Comment
  CAS-BOT-BC63563  Ceanothus oliganthus var. orcuttii Carl B. Wolf 1941-8-15 11157 Orange Santa Ana Mts. along main divide motorway just no. of head of Trabuco truck trail. 1219 Comment
  CAS-BOT-BC63564  Ceanothus oliganthus var. orcuttii Carl B. Wolf 1941-8-15 11157 Orange Santa Ana Mts. along main divide motorway just no. of head of Trabuco truck trail. 1219 Comment
  OBI10429  Ceanothus oliganthus var. orcuttii Carl B. Wolf 1935-6-19 7234 Orange Santa Ana Mts, Main Divide Motorway jctn with Trabuco Cyn truck trl Comment
  LA44933  Ceanothus palmeri W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  CAS-BOT-BC53004  Ceanothus spinosus Le Roy Abrams 1901-6-16 1854 Orange Trabuco Canyon Comment
  CAS-BOT-BC53005  Ceanothus spinosus P. C. Everett 1935-6-19 7241 Orange Santa Ana Mts., Trabuco Canyon, 1/8 mi. below (W.) Forest Service Patrol Station 487 Comment
  RSA16580  Ceanothus spinosus Percy C. Everett 1935-6-19 7241 Orange Trabuco Canyon, 0.8mi below (W) forest service patrol station 488 Comment
  RSA30495  Ceanothus spinosus L. R. Abrams 1901-6-16 1854 Orange Trabuco Canon. Comment
  SDSU10426  Ceanothus spinosus D. F. Howe 1947-4-4 1545 Orange Santa Ana Mtns. Comment
  RSA648194  Centaurium venustum Karl Price 1988-4-19 19 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  UCR111727  Ceratonia siliqua H. Camp 2000-1-18 s.n. Orange Peninsular Range; Santa Ana Mtns., Caspers Regional Park, 12 mi. east of I-5 in San Juan Capistrano, along Ortega Hwy (Hwy 74), San Juan Creek close to Forest Service boundary and the hot springs 213 Comment
  POM49175  Chaenactis artemisiifolia L. R. Abrams 1901-6-15 1808 Orange Trabuco Canyon Comment
  RSA648190  Chaenactis artemisiifolia Karl Price 1988-5-7 37 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  IRVC16152  Chaenactis glabriuscula var. glabriuscula Gordon A. Marsh 1978-5-22 Orange Upper Trabuco Canyon, near Live Oak Canyon Rd.; gravel flood plain. Santa Ana Mountains Comment
  RSA443832  Chaenactis glabriuscula var. glabriuscula Gordon Marsh 1978-5-22 s.n. Orange Santa Ana Mts, Upper Trabuco Canyon, gravel floodplain near live oak canyon road Comment
  POM212354  Chamaesyce polycarpa var. polycarpa C. B. Wolf 1931-3-6 s.n. Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  RSA2070  Chamaesyce polycarpa var. polycarpa C. B. Wolf 1931-3-6 s.n. Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  RSA788248  Chamaesyce polycarpa var. polycarpa R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49624 Orange Santa Ana Mountains: along Ortega Highway (74), about 1/4 mile above San Juan Fire Station Comment
  SEINET10793773  Cheilanthes newberryi George Yatskievych, K. G. Preston, Mafham 1981-4-26 Yatskievych 81 -145 Orange 10.9 miles W of El Carizo Guard Station. San Juan Canyon in S-facing cliff area. Santa Ana Mountains. 488 Comment
  RSA721124  Cirsium californicum Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  RSA721121  Cirsium occidentale Anonymous s.n. Orange Lower Trabuco. Comment
  RSA721122  Cirsium occidentale Pomeroy 1929-4-27 s.n. Orange Trabuco. Comment
  IRVC14808  Cirsium occidentale var. californicum E. P. Cowper 1965-4-10 Orange Trabuco Canyon, passed Guard Station. Santa Ana Mountains Comment
  IRVC617  Cirsium occidentale var. occidentale C. Orr 1965-3-27 Orange Trabuco Road, 3mi E El Toro Marine Base. El Toro Comment
  SDSU3806  Cirsium vulgare Curtis B. Kendall 1994-5-18 18 V94F Orange Intersection of Bell Canyon Road and North Prusker Road in he National Audubon Starr Ranch Sanctuary. 268 Comment
  CAS-BOT-BC162647  Clarkia E. W. Lathrop 1974-6-27 7408 Orange 5 miles est of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l. Forest, Santa Ana Mountains 396 Comment
  RSA769611  Clarkia E. W. Lathrop 1974-6-27 7408 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCSB48213  Clarkia bottae Roberts, Fred 1981-5-3 Orange Santa Ana Mtns; Hot Springs Canyon; 1.1km NNE San Juan Guard Station; near base of San Juan Trail 264 Comment
  UCR26961  Clarkia deflexa E. W. Lathrop 1966-5-13 6293 Orange Santa Ana Mountains, 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  CSUSB224  Clarkia dudleyana Nancy J. Moriarty 1973-5-27 730527 7 Orange Cleveland National Forest; 13.2 miles northwest of Interstate 5 on the Ortega Highway. Comment
  RSA610412  Clarkia purpurea subsp. quadrivulnera R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA648196  Clarkia purpurea subsp. quadrivulnera Karl Price 1988-5-7 27 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  SEINET7067523  Clarkia purpurea subsp. quadrivulnera A. G. Vestal 1947-6-12 s.n. Orange Canyon Road to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 444428mE, 3723792mN. Comment
  SEINET7067524  Clarkia purpurea subsp. quadrivulnera A. G. Vestal 1947-6-12 s.n. Orange Grade to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 445302mE, 3724321mN. Comment
  UCSB48212  Clarkia purpurea subsp. quadrivulnera Roberts, Fred 1981-5-3 Orange Santa Ana Mtns; Hot Springs Cyn; 0.8 km by road N of San Juan Guard Station 256 Comment
  RSA797818  Claytonia perfoliata R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49807 Orange Santa Ana Mountains: Trabuco Canyon Comment
  CAS-BOT-BC439944  Claytonia perfoliata subsp. mexicana C. B. Wolf 1931-3-6 1853 Orange Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  CAS-BOT-BC439945  Claytonia perfoliata subsp. mexicana C. B. Wolf 1931-3-6 1853 Orange Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  RSA2076  Claytonia perfoliata subsp. mexicana C. B. Wolf 1931-3-6 1853 Orange Trabuco Canyon at Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  UC484254  Claytonia perfoliata subsp. perfoliata C. B. Wolf 1931-3-6 Orange Trabuco Campgrounds Santa Clara Mts., Trabuco Canyon (Trabuco Canyon, w slope of Santa Ana Mts) 609 Comment
  UCSB48083  Clematis pauciflora Roberts, Fred 1981-4-12 Orange Santa Ana; San Juan Canyon, Hwy 74 2.0km by road SW San Juan Guard Station; 2.7km SW Juan Rancho Survey Mark 210 Comment
  RSA542501  Collinsia heterophylla Fred M. Roberts, Karlin G. Marsh 1987-5-14 3446 Orange Upper Trabuco Canyon, Trabuco Canyon Trail, 2 km NNW Los Pinos Peak 856 Comment
  RSA649085  Collinsia heterophylla Karl Price 1988-4-29 12 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  UCSB52942  Corethrogyne filaginifolia Roberts, Fred 1983-11-4 Orange Santa Ana Mtns.; between Flacon and Blue Jay campgrounds; along Main Divide Truck Trail, 2.1 km. ESE Los Pinos Peak 1090 Comment
  CAS-BOT-BC214933  Cotyledon viscida Joseph Cook (Rev.) Nevin 1881-7-1 s.n. San Bernardino Hot Springs, San Juan Comment
  CAS-BOT-BC427770  Crassula connata C. B. Wolf 1931-3-6 1844 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope Santa Ana Mts. 457 Comment
  CAS-BOT-BC427771  Crassula connata C. B. Wolf 1931-3-6 1844 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope Santa Ana Mts. 457 Comment
  OBI5823  Crassula connata Carl B. Wolf 1931-3-6 1844 Orange 1/2 mi above Trabuco Oaks, Trabuco Cyn, W slope Santa Ana Mts 457 Comment
  RSA2085  Crassula connata C. B. Wolf 1931-3-6 s.n. Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  UC484241  Crassula connata var. erectoides C. B. Wolf 1931-3-6 Orange 1/2 mi. above Trabuco; w. slope Santa Ana Mts., Trabuco Canyon 457 Comment
  IRVC255  Cryptantha intermedia C. Hinesly Orange Trabuco Canyon Santa Ana Mountains Comment
  IRVC256  Cryptantha intermedia S. Gilbert 1965-4-8 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA699869  Cryptantha intermedia L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  UC484240  Cryptantha intermedia C. B. Wolf 1931-3-6 Orange 0.5 mi above Trabuco Oaks (w slope Santa Ana Mts.); Santa Ana Mts., Trabuco Canyon Comment
  RSA699870  Cryptantha microstachys Dorothy Sommis s.n. Orange Trabuco Canyon Comment
  RSA1698  Cryptantha muricata C. B. Wolf 1931-3-6 1839 Orange Trabuco Canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  IRVC17035  Cryptantha muricata var. muricata L. McCabe 1965-4-24 Orange Ortega Hwy. Santa Ana Mountains Comment
  RSA697161  Cuscuta californica R. H. McArthur 1934-5-19 s.n. Orange Live oak Canyon. Comment
  RSA788244  Cuscuta californica R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49628 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  RSA797668  Cuscuta californica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49772 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA545240  Cuscuta ceanothi R. F. Thorne 1967-08 41893 Orange Trabuco Canyon. Comment
  RSA788245  Cuscuta ceanothi R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49627 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  UC1595748  Cuscuta subinclusa G. D. Price Aug 1967 41893 Orange Trabuco Canyon Santa Ana Mts. Comment
  UC879591  Cuscuta subinclusa F. R. Fosberg 1929-12-21 S 2469 Orange Trabuco Canyon Santa Ana Mts. 500 Comment
  UCD169765  Cuscuta subinclusa R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49627 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. 214 Comment
  RSA708531  Cyperus involucratus Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6108 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  RSA797602  Cyperus niger var. capitatus Robert F. Thorne 1977-11-21 49999 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UC2047828  Cyperus niger var. capitatus Robert F. Thorne 1977-11-21 49999 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. Comment
  CAS-BOT-BC114051  Cyperus squarrosus Joseph Cook (Rev.) Nevin 1882-1-1 s.n. Los Angeles San Juan Hot Springs. Comment
  UCSB48130  Datura wrightii Roberts, Fred 1981-4-12 Orange SANTA ANA MOUNTAINS: San Juan Canyon, Hwy 74 2.0km SW by road from San Juan Guard Station; 2.7km SW Juan Rancho Survey Mark 210 Comment
  RSA648189  Daucus pusillus Karl Price 1988-5-21 51 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  RSA703199  Deinandra paniculata R. E. Riefner Jr. 2004-7-6 04 -302 Orange Upper Chiquita Canyon, vicinity of Oso Pkwy. and SR-241. 224 Comment
  RSA649081  Delphinium Karl Price 1988-5-7 35 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA769340  Delphinium cardinale E. W. Lathrop 1974-6-27 7406 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  CAS-BOT-BC116420  Delphinium patens subsp. hepaticoideum C. B. Wolf 1931-3-6 1856 Orange 1/2 mile below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  CAS-BOT-BC116421  Delphinium patens subsp. hepaticoideum C. B. Wolf 1931-3-6 1856 Orange 1/2 mile below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  RSA2073  Delphinium patens subsp. hepaticoideum Carl B. Wolf 1931-3-6 1856 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  RSA400033  Delphinium patens subsp. hepaticoideum Albert J. Perkins 1913-4-19 s.n. Orange Trabuco Canyon. Comment
  UC484251  Delphinium patens subsp. hepaticoideum C. B. Wolf 1931-3-6 1856 Orange 1/2 mi below Trabuco Camp Grounds (w slope of mts); Santa Ana Mts., Trabuco Canyon 609 Comment
  VVC357  Dicentra chrysantha P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  SJSU377  Diplacus aurantiacus A. W. Jacobs 1938-8-4 Orange Trabuco Canyon Rd, Santa Ana Mts c. 8 mi NE of El Toro Comment
  CAS-BOT-BC152261  Diplacus clevelandii C. B. Wolf 1933-11-8 5535 Orange Santa Ana Mts., Trabuco Canyon on S. wall opposite Trabuca Truck Trail 914 Comment
  RSA708818  Distichlis spicata Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6113 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  RSA699993  Dodecatheon clevelandii L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA722384  Drymocallis glandulosa var. wrangelliana Mabel Harvey s.n. Orange Trabuco Canyon. Comment
  CAS-BOT-BC70835  Dryopteris arguta Ira L. Wiggins 1966-2-4 20410 Orange Trabuco Canyon, about 1/2 mi. above end of open road Comment
  IRVC128  Dryopteris arguta C. Thompson 1965-4-15 Orange Trabuco Canyon. Santa Ana Mountains Comment
  IRVC16264  Dryopteris arguta L. Fox 1978-5-9 s.n. Orange Upper Trabuco Canyon. Santa Ana Mountains Comment
  RSA124716  Dryopteris arguta E. K. Balls, Percy C. Everett 1957-11-25 22839 Orange Upper Trabuco Canyon, 2.9 mi. ne. from entrance to Holy Jim canyon, 1097 Comment
  RSA124720  Dryopteris arguta E. K. Balls, Percy C. Everett 1957-11-25 22843 Orange Trabuco Canyon, 1.7 mi. w. of entrance to Holy Jim Canyon, 670 Comment
  UC2030238  Dryopteris arguta J. Metzgar with K. Pryer and M. Windham 2006-4-25 177 Orange Cleveland National Forest: Hot Springs Canyon Comment
  RSA659892  Dudleya Karl Price 1988-5-21 43 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  CAS-BOT-BC411408  Dudleya lanceolata E. W. Lathrop 1974-6-27 7423 Orange 5 miles E of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l. Forest 396 Comment
  RSA769617  Dudleya lanceolata E. W. Lathrop 1974-6-27 7423 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA789588  Echinochloa crus-galli R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49634 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA731006  Ehrharta erecta Fred M. Roberts, B. Allen 2007-1-19 6508 Orange Mission Viejo: 23012 Via San Gabriel. Irrigated urban landscaping. 230 Comment
  RSA789589  Eleocharis montevidensis var. parishii Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49633 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  POM365352  Elymus glaucus subsp. glaucus H. L. Bauer 1925-4-20 s.n. Orange Trabuco Canyon., [33 deg 40'05N, 117 deg 33'45W] Comment
  RSA797826  Elymus glaucus subsp. glaucus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49815 Orange Santa Ana Mountains: Trabuco Canyon Comment
  VVC254  Emmenanthe penduliflora P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  IRVC670  Encelia farinosa D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  RSA1548  Epilobium canum subsp. canum J. T. Howell 1928-7-10 1090 Orange Trabucco Canyon, Santa Ana Mountains. 457 Comment
  RSA262109  Epilobium canum subsp. mexicanum H. A. Zuill 1966-7-1 269 Orange Trabuco Canyon. Comment
  RSA697580  Eremocarpus setiger Minor Warne 1934-5-19 s.n. Orange Roadside Forks Trabuco and El Toro Rd. Comment
  SEINET7067527  Eremocarpus setiger A. G. Vestal 1947-6-12 s.n. Orange Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 447562mE, 3725206mN. Comment
  UC947527  Eriastrum sapphirinum A. G. Vestal 1947-6-12 Orange below terrace; Trabuco Canyon Comment
  UC947531  Eriastrum sapphirinum A. G. Vestal 1947-6-12 Orange along road bank near base of west facing chaparral slope; Tributary of Trabuco Canyon Comment
  SEINET7073539  Ericameria palmeri var. pachylepis A. G. Vestal 1963-3-27 s.n. Orange Ridge above Cai+-ada Gobernadora. About 6.2 miles up. UTM Zone 11, 446709mN, 3718372mN. Coordinate datum: NAD27. Comment
  RSA708533  Ericameria parishii var. parishii Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6106 Orange Caspers Wilderness Park, Hot Springs Cyn., Hot Springs Trail, c.a. 0.16km WSW San Juan Ranger Station, north of SR 74. 212 Comment
  UC1118798  Ericameria parishii var. parishii A. Lewis 1934-5-1 414 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quad., Trabuco Canyon 1341 Comment
  RSA696783  Erigeron foliosus Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  SD98909  Erigeron foliosus Darley Howe 1976-6-4 4905 Orange Trubuco Canyon, Santa Ana Mountains. Comment
  SDSU3943  Erigeron foliosus D. F. Howe 1976-6-4 4905 Orange Trabuco Canyon, Santa Ana Mts. 305 Comment
  CAS-BOT-BC33457  Erigeron foliosus var. foliosus LeRoy Abrams 1901-6-16 1801 Orange Trabucco Canyon Comment
  POM49713  Erigeron foliosus var. stenophyllus L. R. Abrams 1901-6-16 1801 Orange Trabuco Canyon Comment
  RSA648191  Erigeron foliosus var. stenophyllus Karl Price 1988-5-7 30 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  RSA649079  Eriogonum fasciculatum subsp. fasciculatum Karl Price 1988-4-28 10 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  VVC62  Eriophyllum confertiflorum P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  LA203538  Eriophyllum confertiflorum var. confertiflorum W. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  LA203539  Eriophyllum confertiflorum var. confertiflorum W. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  UC1118325  Eriophyllum confertiflorum var. confertiflorum J. B. Spring 1931-4-14 33 Orange Cold Spring Harbor Elsinore Quadrangle, Cold Spring Harbor 457 Comment
Read comments
Jan 11 2007
  RSA0012822  Eucalyptus polyanthemos Fred M. Roberts, Sandy Leatherman 2007-11-9 6648 Orange San Juan Canyon along San Juan Creek, within the community of San Juan Hot Springs. 216 Comment
  RSA564284  Eucrypta chrysanthemifolia Ed LaRue 1993-5-11 s.n. Riverside Murrieta Oaks, 3 miles (airline) NW of Murrieta Hot Springs, W side oh Hwy 215. 457 Comment
  RSA603249  Eucrypta chrysanthemifolia R. S. Woglum 1939-5-14 s.n. Orange Peninsular Ranges: Santa Ana Mountains, Trabuco Canyon. Comment
  SBBG40450  Eucrypta chrysanthemifolia var. chrysanthemifolia J. Ingram 1960-3-29 265 Orange 2 mi above O'Neill Park, Trabuco Cyn Comment
  RSA2077  Euphorbia crenulata C. B. Wolf 1931-3-6 1852 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  RSA220976  Euphorbia crenulata E. W. Lathrop 1966-4-6 6143 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR26989  Euphorbia crenulata E. W. Lathrop 1966-4-6 6143 Orange Cleveland National Forest, Trabuco Oaks, Trabuco Canyon 396 Comment
  RSA697596  Euphorbia polycarpa Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  CAS-BOT-BC474740  Ficus carica R. E. Riefner, Jr. 2015-8-29 15 -370 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco 363 Comment
  RSA708733  Ficus carica Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6118 Orange Caspers Wilderness Park, Hot Springs Creek in San Juan Cyn., c.a. 0.36km SSW San Juan Ranger Station, at SR 74 crossing. 197 Comment
  RSA731756  Ficus elastica Fred M. Roberts, Sandy Leatherman 2007-11-9 6649 Orange San Juan Canyon along San Juan Creek, within the community of San Juan Hot Springs. 216 Comment
  CAS-BOT-BC474738  Ficus microcarpa R. E. Riefner, Jr. 2015-8-29 15 -368 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco 363 Comment
  UC2046890  Ficus microcarpa R. E. Riefner Jr. 2015-8-29 15 -368 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco. Comment
  CAS-BOT-BC474739  Ficus rubiginosa R. E. Riefner, Jr. 2015-8-29 15 -369 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco 363 Comment
  RSA736576  Filago californica Keith E. Hoffmaster 1935-4-14 597 Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. Comment
  RSA797822  Filago gallica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49811 Orange Santa Ana Mountains: Trabuco Canyon Comment
  HSC87010  Frangula californica Reid Moran 1975-7-18 22596 Orange Bottoms of Upper Trabuco Canyon, Santa Ana Mtns. 725 Comment
  CAS-BOT-BC63026  Frangula californica subsp. californica E. W. Lathrop 1974-6-27 7412 Orange 5 mi. e. of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest. 396 Comment
  CAS-BOT-BC63074  Frangula californica subsp. californica Reid Moran 1975-7-18 22598 Orange Common near Yaeger Mine, upper Trabuco Canyon, Santa Ana Mountains. 725 Comment
  CAS-BOT-BC63075  Frangula californica subsp. californica Reid Moran 1975-7-18 22596 Orange Common in the bottom of upper Trabuco Canyon, Santa Ana Mountains. 725 Comment
  SBBG92712  Frangula californica subsp. californica R. Moran 1975-7-18 22598 Orange near Yaeger Mine, upper Trabuco Cyn 725 Comment
  SBBG92713  Frangula californica subsp. californica R. Moran 1975-7-18 22596 Orange bottom of upper Trabuco Cyn 725 Comment
  SD119374  Frangula californica subsp. californica Reid Moran 1975-11-21 22740 Orange in bottom of Trabuca Canyon, Santa Ana Mountains 399 Comment
  SD120875  Frangula californica subsp. californica Reid Moran 1975-7-18 22598 Orange near Yeager Mine, upper Trabuco Canyon, Santa Ana Mountains 725 Comment
  SD120876  Frangula californica subsp. cuspidata Reid Moran 1975-7-18 22596 Orange Bottom of Trabuco Canyon, Santa Ana Mountains 725 Comment
  SD120877  Frangula californica subsp. tomentella Reid Moran 1975-7-18 22600 Orange slope, upper Trabuco Canyon, Santa Ana Mountains 700 Comment
  RSA609661  Galium angustifolium R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA700193  Galium angustifolium L. C. Hull 1934-4-24 s.n. Orange Trabuco Canyon. Comment
  SEINET7067519  Galium angustifolium A. G. Vestal 1947-6-12 s.n. Orange Upper San Juan Canyon on Route 74 to Lake Elsinore in Cleveland National Forest. Coordinate datum: NAD27. UTM Zone 11, 452352mE, 3716538mN. Comment
  POM367705  Galium angustifolium subsp. angustifolium Albert J. Perkins 1913-4-29 s.n. Orange Trabuco Canyon. Comment
  RSA609650  Galium angustifolium subsp. angustifolium R. S. Woglum 1938-5-8 1615 Orange Peninsular Ranges: Capistrano to Elsinore; Santa Ana Mountains [Orange and Riverside counties]. Comment
  RSA797667  Galium angustifolium subsp. angustifolium Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49771 Orange Santa Ana Mountains: Trabuco Canyon Comment
  POM367761  Galium aparine Albert J. Perkins 1923-4-27 s.n. Orange Trabuco Canyon. Comment
  RSA221069  Galium aparine E. W. Lathrop 1966-5-1 6261 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA698801  Galium porrigens var. porrigens Unspecified s.n. Orange Lower Trabuco. Comment
  RSA139631  Gilia angelensis John Ingram 1960-3-29 269 Orange 1/2 mile below O'Neill Park, Trabuco Canyon. Comment
  RSA769341  Gilia angelensis E. W. Lathrop 1974-6-27 7421 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  IRVC454  Gnaphalium californicum D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  RSA736570  Gnaphalium californicum Keith E. Hoffmaster 1935-4-14 606 Orange Live Oak can. Comment
  RSA731759  Gnaphalium canescens subsp. microcephalum Fred M. Roberts, Sandy Leatherman 2007-11-9 6646 Orange San Juan Canyon along San Juan Creek, within the community of San Juan Hot Springs. 216 Comment
  IRVC740  Gnaphalium microcephalum var. microcephalum D. Ibbetson 1965-3-27 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA698229  Godetia bottae R. H. McArthur 1934-5-19 s.n. Orange Trobuca Canyon. Comment
  RSA1565  Grindelia camporum var. bracteosa J. T. Howell 1928-7-10 1093 Orange Trabucco Canyon, Santa Ana Mountains. 457 Comment
  RSA788243  Gutierrezia bracteata R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49629 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  RSA232067  Hazardia squarrosa var. grindelioides C. W. Tilforth 1972-8-20 624 Orange Along County Rd. S19, between Cooks corner and O'Neil Park Comment
  UC1424954  Hazardia squarrosa var. grindelioides C. W. Tilforth 1972-8-20 624 Orange County Rd. S 19 between Cooks Corner and O'Neill Park Comment
  UCR26998  Hedera helix E. W. Lathrop 1966-5-13 6297 Orange Santa Ana Mountains, 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  LA204752  Helianthemum scoparium W. Pequegnat; 1936-9-8 102 Orange Santa Ana Mountains, Ortega Rd Comment
  RSA263727  Helianthus gracilentus E. W. Lathrop 1970-1-28 7125 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA684401  Hemizonia paniculata Scott D. White, Brian Leatherman 2003-10-30 9847 Orange Foothills; Oso Parkway crossing over Chiquita Canyon. 198 Comment
  CAS-BOT-BC143753  Heteromeles arbutifolia C. B. Wolf 1932-3-6 1840 Orange Trabuco Canyon 1/2 mi. above Trabuco Oaks, west slope of Santa Ana Mts. 457 Comment
  RSA1697  Heteromeles arbutifolia Carl B. Wolf 1931-3-6 1840 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA649083  Heteromeles arbutifolia Karl Price 1988-5-21 57 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA708536  Heterotheca sessiliflora subsp. echioides Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6104 Orange Caspers Wilderness Park, Hot Springs Cyn., Hot Springs Trail, c.a. 0.16km WSW San Juan Ranger Station, north of SR 74. 212 Comment
  IRVC18573  Heterotheca sessiliflora subsp. fastigiata Karlin G. Marsh 1980-8-13 Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  POM261673  Hoita macrostachya W. Pequegnat 1941-6-13 s.n Riverside Trabuco Canyon Comment
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Jun 23 2012
  RSA708734  Hoita macrostachya Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6119 Orange Caspers Wilderness Park, Hot Springs Creek in San Juan Cyn., c.a. 0.36km SSW San Juan Ranger Station, at SR 74 crossing. 197 Comment
  IRVC18572  Holocarpha virgata Karlin G. Marsh 1980-8-13 Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  RSA683848  Isocoma menziesii var. menziesii Scott D. White, Brian Leatherman 2003-10-30 9848 Orange Foothills; Oso Parkway crossing over Chiquita Canyon. 198 Comment
  UC1605435  Isocoma menziesii var. vernonioides Steve Boyd and Tim Ross 1994-9-14 8348 Orange Lucas Canyon Trail trail at divide between Aliso Canyon and Lucas Canyon; Southern Santa Ana Mountains, Cleveland N.F., San Mateo Cany 341 Comment
  UCR93338  Jepsonia parryi G. R. Ballmer 1994-11-16 s.n. Orange Peninsular Range; Santa Ana Mtns., Ortega Hwy in vicinity (W of) of National Forest boundary 250 Comment
  UCR229282  Juglans californica R. E. Riefner Jr. 2011-8-25 11- 113 Orange Trabuco Canyon, Trabuco Canyon Road c. 1 mi northwest of O'Neill Regional Park 319 Comment
  UCR229283  Juglans californica R. E. Riefner Jr. 2011-8-25 11- 112 Orange Trabuco Canyon, Trabuco Canyon Road c. 1 mi northwest of O'Neill Regional Park 319 Comment
  SD241062  Juglans hindsii R. E. Riefner Jr. 2011-8-25 11 114 Orange Trabuco Canyon, Trabuco Canyon Road ca. 1 mile NW of O'Neill Regional Park. 319 Comment
  UCR229284  Juglans hindsii R. E. Riefner Jr. 2011-8-25 11- 114 Orange Trabuco Canyon, Trabuco Canyon Road c. 1 mi northwest of O'Neill Regional Park 319 Comment
  UCR242861  Juglans nigra R. E. Riefner Jr. 2011-8-25 11- 115 Orange Trabuco Canyon, Trabuco Canyon Road c. 1 mi northwest of O'Neill Regional Park 319 Comment
  SD248445  Juglans regia R. E. Riefner Jr. 2011-8-25 11 115 Orange Trabuco Canyon, Trabuco Canyon Road, ca. 1 mile NW of O'Neill Regional Park. 319 Comment
  UCR216056  Juglans regia R. E. Riefner Jr. 2009-7-18 09- 149 Orange Trabuco Canyon, Trabuco Canyon Rd. c. 1.25 mi. NW of O'Neil Regional Park 332 Comment
  RSA564283  Juncus bufonius Jack Easton 1993-5-27 s.n. Riverside Murietta Oaks, 3.0 miles (airline) NW of Murrieta Hot Springs. W side of Highway 215. 451 Comment
  RSA699683  Juncus rugulosus Keith E. Hoffmaster 1935-4-14 s.n. Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. Comment
  LA105129  Keckiella cordifolia David C. Michener; 1980-7-14 3704 Orange Santa Ana Mountains, Starr Ranch Audubon Sanctuary, Crow Creek, ca. 1.3 mi N of confluence with Bell canyon Comment
  RSA293306  Keckiella cordifolia D. C. Michener 1980-7-14 3704 Orange Starr Audubon Sanctuary. Riparian woodland margin in Crow Creek ca. 1.3 mi. north of jct along Bell Canyon. 250 Comment
  RSA293307  Keckiella cordifolia D. C. Michener 1980-6-21 3683 Orange Starr Audubon Sanctuary. Riparian woodland margin in Crow Creek ca. 1.5 mi. north of confluence with Bell Canyon. 250 Comment
  RSA659899  Keckiella cordifolia Karl Price 1988-5-21 40 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA736148  Keckiella cordifolia Rosemarie Zimmermann 1963-6-8 280 Orange Off State Hwy 18, on Oak Ridge Estates Rd. About 7 mi. E. of Hwy 101and El Toro. Near O'Neil Park. 610 Comment
  RSA769621  Keckiella cordifolia E. W. Lathrop 1974-6-27 7409 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR36089  Keckiella cordifolia D. C. Michener 1980-7-14 s.n. Orange Santa Ana Mtns., Starr Ranch Audubon Sanctuary. Crow Creek, c. 1.3 miles north of confluence with Bell Canyon Comment
  SD134374  Kickxia elatine Craig Reiser 1991-7-1 Orange Live Oak Road near the foothills of the Santa Ana Mountains Comment
  CAS-BOT-BC338902  Lasthenia californica C. B. Wolf 1931-3-6 1847 Orange 1 mile above Trabuco Oaks, Trabuco Canyon, West slope of the Santa Ana Mts. 518 Comment
  CAS-BOT-BC338903  Lasthenia californica C. B. Wolf 1931-3-6 1847 Orange 1 mile above Trabuco Oaks, Trabuco Canyon, west slope of the Santa Ana Mts. 518 Comment
  RSA2082  Lasthenia gracilis C. B. Wolf 1931-3-6 1847 Orange Trabuco Canyon, 1 mile above Trabuco Oaks, W slope of Santa Ana Mts 518 Comment
  UC484260  Lasthenia gracilis C. B. Wolf 1931-3-6 1847 Orange 1 mi above Trabuco Oaks Trabuco Canyon; Santa Ana Mts. 518 Comment
  IRVC21512  Lathyrus tingitanus T. W. Mulroy 1973-5-21 1866 Orange San Juan Canyon, Hwy 74, ca. 3.2km E San Juan Guard Station. Santa Ana Mountains 315 Comment
  POM212417  Lathyrus vestitus subsp. alefeldii C. B. Wolf 1931-3-6 1835 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  POM50628  Lathyrus vestitus subsp. alefeldii L. R. Abrams 1901-06 1813 Orange Trabuco Canyon Comment
  RSA1702  Lathyrus vestitus subsp. alefeldii C. B. Wolf 1931-3-6 1835 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA405728  Lathyrus vestitus subsp. alefeldii H. L. Bauer 1929-4-20 s.n. Orange Trabuco Canon. Comment
  UC484235  Lathyrus vestitus var. alefeldii C. B. Wolf 1931-3-6 Orange 0.5 mi above Trabuco Oaks (w slope of Santa Ana Mts.); Santa Ana Mts., Trabuco Canyon 457 Comment
  UCSB12895  Lathyrus vestitus var. alefeldii 1962-3-9 Orange 12.2 miles east of San Juan Capistrano on State 74 243 Comment
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Apr 10 2016
  IRVC1094  Lepidium lasiocarpum L. Burns 1965-4-4 Orange Trabuco Canyon. Santa Ana Mountains Comment
  IRVC1093  Lepidium nitidum D. Orr 1965-4-10 Orange Trabuco Road, 3mi E El Toro Marine Base. El Toro Comment
  RSA263693  Lepidospartum squamatum H. A. Zuill 1966-7-1 270 Orange Trabuco Canyon. Comment
  RSA734396  Lepidospartum squamatum Keith E. Hoffmaster 1935-4-14 598 Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. Comment
  SD127550  Lepidospartum squamatum Reid Moran 1975-11-21 22741 Orange Bottom of lower Trabuco Canyon, Santa Ana Mts. Comment
  UCR58731  Lepidospartum squamatum Reid Moran 1975-11-21 22741 Orange Santa Ana Mtns., bottom of lower Trabuco Canyon Comment
  RSA789590  Leptochloa fusca subsp. fascicularis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49632 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UC484228  Leptodactylon californicum C. B. Wolf 1931-3-6 1831 Orange on Trabuco Canyon Road 1 1/2 mi below Trabuco Oaks; below Trabuco Oaks 304 Comment
  VVC381  Leptodactylon californicum P. J. MacKay 1990-5-25 xn Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  UC1377645  Leptodactylon californicum subsp. glandulosum John Ingram 1960-3-29 270 Orange 1 mi below O'Neill Park (Trabuco Canyon); , below O'Neill Park Comment
  POM49705  Leptosiphon liniflorus L. R. Abrams 1901-06 1797 Orange Trabuco Canyon Comment
  UC712169  Leymus condensatus Charles B. Fiker 1944-7-7 3137 Orange on Bill Rochester's ranch Trabuco Canyon Comment
  RSA769609  Lilium humboldtii E. W. Lathrop 1974-6-27 7416 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 396 Comment
  UC1873111  Limonium R. E. Riefner Jr. 2006-10-19 06 -543 Orange Santa Ana Mountains, City of Rancho Santa Margarita, Robinson Ranch Road at Shadow Rock Road 419 Comment
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Jun 15 2011
  RSA723547  Limonium ramosissimum R. E. Riefner 2005-11-4 5 -739 Orange City of Rancho Santa Margarita, along Robinson Ranch Rd. near North Peak Rd. 500 Comment
  RSA769619  Linanthus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  SEINET6045534  Linanthus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon. Cleveland National Forest. Comment
  JEPS58154  Linanthus androsaceus A. J. Perkins 1913-4-27 Orange Trabuco Canyon Comment
  RSA468571  Linanthus androsaceus Albert J. Perkins 1923-4-27 s.n. Orange Trabuco Canyon. Comment
  CAS-BOT-BC226777  Linanthus californicus C. B. Wolf 1931-3-6 1831 Orange 1 1/2 miles below Trabuco Oaks along Trabuco Canyon road, west slope of Santa Ana Mts. 304 Comment
  CAS-BOT-BC226778  Linanthus californicus C. B. Wolf 1931-3-6 1831 Orange 1 1/2 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  POM212419  Linanthus californicus C. B. Wolf 1931-3-6 1831 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon Road 305 Comment
  RSA2111  Linanthus californicus C. B. Wolf 1931-3-6 1831 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon Road 305 Comment
  RSA468463  Linanthus californicus Albert J. Perkins 1920-5-16 s.n. Orange Trabuco Canyon, Comment
  SD114196  Linanthus californicus Darley F. Howe 1946-6-3 1413 Orange Santa Ana Mountains. Comment
  RSA698395  Linanthus dianthiflorus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  POM364568  Linanthus dianthiflorus subsp. dianthiflorus Jean Carnine 1932-3-6 15307 Orange Trabuco Canyon. Comment
  SEINET7067522  Linanthus liniflorus A. G. Vestal 1947-6-12 s.n. Orange Canyon Road to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 444428mE, 3723792mN. Comment
  RSA698401  Linanthus parviflorus Dorothy Sammis s.n. Orange Trabuco Canyon. Comment
  RSA468223  Lithophragma affine subsp. mixtum Albert J. Perkins 1913-4-27 s.n. Orange Trabuco Canon. Comment
  RSA797821  Lithophragma affine subsp. mixtum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49810 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA648192  Lonicera subspicata var. denudata Karl Price 1988-5-7 31 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  RSA768119  Lonicera subspicata var. johnstonii E. W. Lathrop 1974-6-27 7424 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA788249  Lonicera subspicata var. johnstonii R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49625 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  CAS-BOT-BC198563  Lotus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest 396 Comment
  RSA769336  Lotus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA797909  Lotus crassifolius Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49819 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA2591  Lotus heermannii J. T. Howell 1928-7-10 1092 Orange Trabucco Canyon, Santa Ana Mts. 518 Comment
  RSA621863  Lotus heermannii var. heermannii R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  SEINET7067521  Lotus purshianus A. G. Vestal 1947-6-12 s.n. Orange Canyon Road to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 444428mE, 3723792mN. Comment
  RSA769616  Lotus scoparius E. W. Lathrop 1974-6-27 7415 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA621861  Lotus scoparius var. scoparius R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA698718  Lupinus albifrons L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA619240  Lupinus densiflorus R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA699738  Lupinus densiflorus Keith E. Hoffmaster 1935-4-19 s.n. Orange Santa Ana Mts. (Trabuco Rd.) Comment
  RSA788819  Lupinus excubitus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49802 Orange Santa Ana Mountains: Trabuco Canyon Comment
  IRVC2307  Lupinus excubitus var. hallii Pat Rolfe 1965-3-30 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA28730  Lupinus excubitus var. hallii R. S. Woglum 1938-5-8 1619 Orange Ortega Hwy, Santa Ana Mts Comment
  RSA605683  Lupinus excubitus var. hallii R. S. Woglum 1938-5-8 1619 Orange Peninsular Ranges: Capistrano to Elsinore; Santa Ana Mountains. [Orange / Riverside counties] Comment
  RSA2086  Lupinus hirsutissimus Carl B. Wolf 1931-3-6 1843 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA704029  Lupinus hirsutissimus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  UC484238  Lupinus hirsutissimus C. B. Wolf 1931-3-6 1843 Orange 1/2 mi above Trabuco Oaks (Trabuco Canyon, w slope Santa Ana Mts.); w slope Santa Ana Mts., Trabuco Canyon, above Trabuco Oaks 457 Comment
  RSA619107  Lupinus latifolius subsp. parishii R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA797239  Lupinus longifolius Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49801 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA788817  Lupinus sparsiflorus subsp. sparsiflorus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49804 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA86974  Lupinus sparsiflorus subsp. sparsiflorus F. W. Peirson 1923-5-5 3508 Orange Trabuco Canyon, Santa Ana Mts. 549 Comment
  IRVC2321  Lupinus succulentus Anonymous 1965-4-18 Orange Trabuco Canyon. Santa Ana Mountains Comment
  IRVC2342  Lupinus succulentus 1965-4-18 HS 0416 Orange Trabuco Canyon. Santa Ana Mountains Comment
  IRVC2350  Lupinus succulentus Ed Hazen 1965-4-1 HS 0417 Orange Trabuco Canyon Santa Ana Mountains Comment
  SDSU5016  Lupinus succulentus R. M. Beauchamp 1968-2-17 769 Orange On north side of Trabuco Rd., opposite Catholic cemetery. Comment
  IRVC2356  Lupinus truncatus Jean Gilbert 1965-4-3 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  IRVC2358  Lupinus truncatus B. Newman 1965-3-28 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  IRVC2360  Lupinus truncatus D. Ibbetson 1965-4-10 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA1700  Lupinus truncatus Carl B. Wolf 1931-3-6 1837 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA788818  Lupinus truncatus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49803 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA0014850  Lythrum californicum Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6109 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, ca. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  UCD169742  Lythrum californicum R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49631 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. 205 Comment
  RSA797823  Madia gracilis R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49812 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA768118  Malacothrix saxatilis var. tenuifolia E. W. Lathrop 1974-6-27 7407 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  LA62900  Malosma laurina W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  LA62901  Malosma laurina W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  SJSU376  Malosma laurina A. W. Jacobs 1938-8-4 Orange Trabuca Canyon Rd, Santa Ana Mts, c. 6.5 mi NE of El Toro Comment
  RSA221067  Malus sylvestris E. W. Lathrop 1966-4-6 6133 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA797820  Meconella denticulata Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49809 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA797664  Melica frutescens R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49768 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA734398  Melica imperfecta Keith E. Hoffmaster 1935-4-14 605 Orange Live Oak can. Comment
  SD123844  Melica imperfecta E. W. Lathrop 1966-5-13 6298 Orange Santa Ana Mountains, 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest 395 Comment
  UCR205982  Melica imperfecta Erynn Maynard 2007-8-2 s.n. Orange Peninsular Range; Santa Ana Mtns., Starr Ranch Sanctuary, 100 Bell Canyon Rd., city of Trabuco Canyon 488 Comment
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Sep 5 2010
  RSA708735  Mentha aquatica Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6120 Orange Caspers Wilderness Park, Hot Springs Creek in San Juan Cyn., c.a. 0.36km SSW San Juan Ranger Station, at SR 74 crossing. 197 Comment
  RSA263649  Microseris lindleyi E. W. Lathrop 1966-4-6 6138 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA649084  Mimulus aurantiacus subsp. australis Karl Price 1988-4-29 20 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA298668  Mimulus aurantiacus var. pubescens D. C. Michener 1981-6-19 3975 Orange Starr Ranch Audubon Sanctuary. Coastal sage-scrub formation in headwaters of Crow Canyon. Comment
  RSA420310  Mimulus aurantiacus var. pubescens R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  UCD122401  Mimulus aurantiacus var. pubescens R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon. Comment
  UCSB48103  Mimulus aurantiacus var. pubescens Roberts, Fred; Fritzke, Sue 1982-4-3 Orange Santa Ana Mnts; Lower Hot Springs Canyon; Lazy W Road; 2.4km N by road of San Juan Guard Station; 1.4km NNW Juan Rancho Survey Mark 240 Comment
  RSA648197  Mimulus brevipes Karl Price 1988-5-21 54 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA650616  Mimulus brevipes R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA769620  Mimulus cardinalis E. W. Lathrop 1974-6-27 7428 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA17495  Mimulus clevelandii Percy C. Everett 1936-8-28 8233 Orange Main Divide Motorway, Head of Trabuco Canyon 1159 Comment
  RSA7634  Mimulus clevelandii Carl B. Wolf 1933-11 20009 Orange Trabuco Canyon, so wall, opposite the Trabuco truck trail. Comment
  RSA564286  Mimulus pilosus Jack Easton 1993-5-27 s.n. Riverside Murietta Oaks, 3.0 miles (airline) NW of Murrieta Hot Springs. W side of Highway 215. 451 Comment
  CAS-BOT-BC219928  Monardella breweri subsp. lanceolata P. C. Everett 1935-6-19 7238 Orange Santa Ana Mts., Trabuco Canyon, 1 3/4 mi. below summit of Truck Trail 975 Comment
  SEINET892767  Monardella breweri subsp. lanceolata P. C. Everett 1935-1 7238 Orange Santa Ana Mts., Trabuco Canyon, 1 3/4 mi. below summit of truck trail 975 Comment
  CAS-BOT-BC221716  Monardella hypoleuca subsp. intermedia Rev. J. C. Nevin 1882-1-1 s.n. Los Angeles San Juan Hot Springs Comment
  RSA16470  Monardella lanceolata var. lanceolata Percy C. Everett 1935-6-19 s.n. Orange Santa Ana Mountains, Trabuco canyon, 1 3.4 miles below (W.) summit of truck traul. 976 Comment
  CAS-BOT-BC275293  Muhlenbergia microsperma LeRoy Abrams 1903-4-18 3260 Orange Trabuco arroyo near Capistrano Comment
  UCSB52863  Muhlenbergia microsperma Marsh, G.; Marsh, K. 1981-5-24 Orange Lower Hot Springs Canyon, Lazy W camp, on K-9 trail; Santa Ana Mts Comment
  RSA2081  Nemophila menziesii Carl B. Wolf 1931-3-6 1848 Orange Trabuco Canyon, 1 mile below Trabuco Camp Grounds, west slope of Snata ana Mts. 610 Comment
  UC484259  Nemophila menziesii C. B. Wolf 1931-3-6 1848 Orange 1 mi below Trabuco Camp Ground (Trabuco Canyon, w slope Santa Ana Mts.); w slope Santa Ana Mts., Trabuco Canyon 609 Comment
  IRVC152  Nephrolepis cordifolia Ed Hazen 1965-4-1 HS 537 Orange Trabuco Canyon Santa Ana Mountains Comment
  RSA708532  Nerium oleander Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6107 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  LA45882  Nicotiana glauca W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  NY259276  Nolina cismontana J. C. Dice 1986-5-3 650 Orange Santa Ana Mountains, 0.2 miles west of Trabuco Canyon 365 Comment
  RSA0000259  Nolina cismontana James C. Dice, T. Oberbauer 1986-5-3 650 Orange 0.2 km west of Trabuco Canyon. 365 Comment
  RSA232073  Nolina cismontana C. W. Tilforth 1972-8-20 623 Orange Along County Rd. S19, between Cooks corner and O Neil Park Comment
  RSA615785  Nolina cismontana James C. Dice, Oberbauer 1986-5-3 651 Orange 0.2 km west of Trabuco Canyon. 365 Comment
  RSA70257  Nolina cismontana Frank W. Peirson 1923-5-5 3507 Orange Trabuco Canyon, Santa Ana Mountains 518 Comment
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Jan 6 2018
  SD121703  Nolina cismontana James C. Dice, Thomas Oberbauer 1986-5-3 651 Orange Santa Ana Mountains, 0.2 kilometer west of the community of Trabuco Canyon and ca. 1 kilometer east of O'Neill Regional Park Comment
  SD121705  Nolina cismontana James C. Dice, Thomas Oberbauer 1986-5-3 650 Orange Santa Ana Mountains, 0.2 km west of the community of Trabuco Canyon and ca. 1 km east of O'Neill Regional Park. Locally common of east-facing slope. 365 Comment
  SD142045  Nolina cismontana James C. Dice, T. Oberbauer 1986-5-3 651 Orange Santa Ana Mts., 0.2 km W of Trabuco Cyn. 365 Comment
  UC1719635  Nolina cismontana James C. Dice, T. Oberbauer 1986-5-3 650 Orange Santa Ana Mountains, 0.2 km W of Trabuco Canyon 365 Comment
  UC1728555  Nolina cismontana James C. Dice with T. Oberbauer 1986-5-3 650 Orange 0.2 km w Trabuco Canyon; Santa Ana Mtns 365 Comment
  UCR152560  Nolina cismontana James C. Dice, T. Oberbauer 1986-5-3 651 Orange Santa Ana Mtns, 0.2 km west of Trabuco Canyon 365 Comment
  RSA698083  Nolina parryi Minor Warne 1934-5-19 s.n. Orange Live oak Canyon. Comment
  RSA698084  Nolina parryi R. H. McArthur 1934-5-19 s.n. Orange Live oak Canyon. Comment
  RSA734215  Nolina parryi Keith E. Hoffmaster 1936-5-3 725 Orange Live Oak Canyon, Santa Ana Mts Comment
  RSA734216  Nolina parryi Keith E. Hoffmaster 1936-5-3 726 Orange Live Oak Canyon, Santa Ana Mts Comment
  RSA450860  Notholaena californica subsp. californica Gordon Marsh, K. G. Marsh 1978-1-27 s.n. Orange Santa Ana Mountains: Trabuco; N side of Upper Trabuco Canyon Road, about 2 mi E of Live Oak Canyon Road. 402 Comment
  SDSU8537  Olea europaea Curtis B. Kendall 1994-5-18 18 V94A Orange North Intersection of Bell Canyon Road and the loop trail in the National Audubon Society Starr Ranch Sanctuary. 314 Comment
  OBI35850  Orobanche parishii Steve Boyd 1982-7-26 s.n. Orange Rancho Mission Viejo. Ashbury Cyn N of Arroyo Trabuco Comment
  RSA262068  Osmorhiza brachypoda E. W. Lathrop 1966-4-6 6135 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Clevland Nat l Forest. 396 Comment
  POM353432  Oxalis albicans subsp. californica Carl B. Wolf 1931-3-6 1858 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  UC484249  Oxalis albicans subsp. californica C. B. Wolf 1931-3-6 1858 Orange 1.5 mi below Trabaco Camp (Trabaco Canyon); Santa Ana Mtns, W slope 548 Comment
  POM212355  Oxalis californica Carl B. Wolf 1931-3-6 1858 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  RSA2071  Oxalis californica Carl B. Wolf 1931-3-6 1858 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  UCR89487  Oxalis pes-caprae Steve Boyd, T. S. Ross 1994-3-22 8203 B Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon along San Juan Creek, near confluence with Hot Springs Canyon 229 Comment
  CAS-BOT-BC121212  Paeonia californica C. B. Wolf 1931-3-6 1842 Orange Trabuco Canyon, 1/2 mi. above Trabuco oaks, west slope of the Santa Ana Mtns. Upper Sonoran. 457 Comment
  CAS-BOT-BC121214  Paeonia californica C. B. Wolf 1931-3-6 1842 Orange Trabuco Canyon, 1/2 mi. above Trabuco oaks, west slope of the Santa Ana Mtns. Upper Sonoran. 457 Comment
  POM211376  Paeonia californica Carl B. Wolf 1931-3-6 1842 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA2087  Paeonia californica Carl B. Wolf 1931-3-6 1842 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA700032  Paeonia californica L. C. Hull 1934-3-11 s.n. Orange Ortega Highway Comment
  UC484239  Paeonia californica C. B. Wolf 1931-3-6 1842 Orange 1/2 mi above, w slope of mts. Trabuco Oaks; Santa Ana Mts., Trabuco Canyon 457 Comment
  JEPS20118  Pectocarya linearis subsp. ferocula C. B. Wolf 1931-3-6 1846 Orange 1/2 mi above Trabaco Oaks (w slope of mts.); Santa Ana Mountains, Trabaco Canyon 457 Comment
  POM212414  Pectocarya linearis subsp. ferocula C. B. Wolf 1931-3-6 1846 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA2083  Pectocarya linearis subsp. ferocula C. B. Wolf 1931-3-6 1846 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA220953  Pedicularis densiflora E. W. Lathrop 1966-4-6 6142 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA790703  Pedicularis densiflora L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  CAS-BOT-BC67762  Pellaea andromedifolia Ira L. Wiggins 1966-2-4 20420 Orange Among rocks on floor of Trabuco Cnayon, about 1/2 mile above canyon mouth. Comment
  RSA124717  Pellaea andromedifolia var. andromedifolia E. K. Balls, Percy C. Everett 1957-11-25 22840 Orange Upper Trabuco Canyon, 2.2 mi. ne. from entrance to Holy Jim Canyon, 990 Comment
  RSA184141  Pellaea andromedifolia var. andromedifolia I. L. Wiggins 1966-2-4 20420 Orange Trabuco Canyon, about 1/2 mi. above canyon mouth Comment
  SD48447  Pellaea andromedifolia var. andromedifolia E. K. Balls, P. C. Everett 1957-11-25 22840 Orange Upper Trabuco Canyon, 2.2 miles northeast from entrance to Holy Jum Canyon 990 Comment
  CAS-BOT-BC71394  Pellaea mucronata Ira L. Wiggins 1966-2-4 20421 Orange on floor of Trabuco Canyon, about 1/2 mi. above canyon mouth Comment
  IRVC3150  Pellaea mucronata var. mucronata E. P. Cowper Orange Trabuco Canyon. Santa Ana Mountains Comment
  VVC489  Penstemon cordifolius P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  RSA769335  Penstemon heterophyllus subsp. australis E. W. Lathrop 1974-6-27 7411 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA221077  Penstemon spectabilis E. W. Lathrop 1966-5-1 6257 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA696850  Pentachaeta aurea Mabel Harvey s.n. Orange Trabuco Canyon. Comment
  RSA697045  Pentachaeta aurea Keith E. Hoffmaster 1935-3-17 s.n. Orange Near El Toro (Trabuco rd.) Comment
  RSA13072  Phacelia brachyloba Percy C. Everett 1935-7-11 7267 Orange Santa Ana Mts, Main Divide Motorway, 1.7miles N of Jct with Trabuco Can road. 1220 Comment
  RSA17192  Phacelia brachyloba Percy C. Everett 1935-7-11 7267 Orange Santa Ana Mts, Main Divide Motorway, 1.7miles N of Jct with Trabuco Can road. 1220 Comment
  VVC263  Phacelia brachyloba P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  RSA221010  Phacelia cicutaria var. hispida E. W. Lathrop 1966-4-18 6174 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA263669  Phacelia cicutaria var. hispida E. W. Lathrop 1974-6-27 7430 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA769030  Phacelia cicutaria var. hispida E. W. Lathrop 1973-6-27 7430 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA769612  Phacelia cicutaria var. hispida E. W. Lathrop 1974-6-27 7430 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA74144  Phacelia distans F. W. Peirson 1923-5-5 4713 Orange Trabuco Canyon, Santa Ana Mountains 518 Comment
  OBI5992  Phacelia minor Carl B. Wolf 1931-3-6 1830 Orange 1.5 mi below Trabuco Oaks along Trabuco cyn rd, W slope of Santa Ana Mts 305 Comment
  RSA1319  Phacelia minor J. T. Howell 1928-7-10 1089 Orange Trabucco Canyon, Santa Ana Mts 381 Comment
  RSA2112  Phacelia minor Carl B. Wolf 1931-3-6 1830 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA648195  Phacelia minor Karl Price 1988-5-7 38 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA697789  Phacelia minor L. C. Hull 1934-4-24 s.n. Orange Trabuco Canyon. Comment
  RSA699778  Phacelia minor Keith E. Hoffmaster 1935-4-14 s.n. Orange Live Oak can. Comment
  SBBG40448  Phacelia minor J. Ingram 1960-3-29 268 Orange across from O'Neill Park, Trabuco Cyn Comment
  UC1377699  Phacelia minor John Ingram 1960-3-29 268 Orange roadsides across from O'Neill Park; Trabuco Canyon Comment
  UC484229  Phacelia minor C. B. Wolf 1931-3-6 1830 Orange Trabuco Canyon Rd 1 1/2 mi below Trabuco Oaks; W. slope Santa Ana Mts. 304 Comment
  UCSB48216  Phacelia ramosissima Roberts, Dar; Roberts, Jr., Fred 1983-5-3 Orange Santa Ana Mtns.; Hot Springs Canyon, 0.5 km. by road N of Cal. Rte. 74 (San Juan Guard Sta.) 238 Comment
  RSA131083  Phacelia ramosissima var. latifolia E. K. Balls 1959-6-4 23756 Orange Grown in RSABG, Claremont. Comment
  UCR124020  Phacelia ramosissima var. ramosissima George K. Helmkamp, E. A. Helmkamp 2001-6-20 6811 Orange Peninsular Range; Santa Ana Mtns., Ortega Highway, 1.6 mi north of Lucas Cyn Rd., near Cleveland National Forest 213 Comment
  UCR170304  Phalaris aquatica Karlin G. Marsh 1982-8-13 s.n. Orange Santa Ana Mountains, south of Trabuco Canyon, Hendricks parcel 427 Comment
  RSA708721  Phoenix dactylifera Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6115 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  SBBG40426  Pholistoma auritum J. Ingram 1960-3-29 263 Orange 2 mi above O'Neill Park, Trabuco Cyn Comment
  UC1377701  Pholistoma auritum John Ingram 1960-3-29 263 Orange along rd. 2 mi. above O'Neill Park; Trabuco Canyon Comment
  RSA797819  Piperia unalascensis Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49808 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA699337  Plagiobothrys arizonicus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  SDSU5387  Plagiobothrys collinus var. californicus R. M. Beauchamp 1968-2-17 771 Orange In field on west side of Trabuco Rd, 2 miles north of El Toro Rd. intersection. Comment
  IRVC14769  Plagiobothrys collinus var. fulvescens D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  SBBG93236  Plagiobothrys nothofulvus J. Ingram 1960-3-29 258 Orange 3 mi above O'Neill Park, Trabuco Cyn Comment
  RSA731755  Platanus racemosa Fred M. Roberts, Sandy Leatherman 2007-11-9 6650 Orange San Juan Canyon along San Juan Creek, within the community of San Juan Hot Springs. 216 Comment
  RSA722433  Platystemon californicus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA708731  Pluchea odorata Fred M. Roberts, Robert L. Allen, Chris M. Barnhill 2004-8-21 6114 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  IRVC1625  Poa annua Diane Ibbetson 1965-4-10 s.n. Orange Trabuco Canyon. Southern Coastal Comment
  CAS-BOT-BC225238  Polemoniaceae E. W. Lathrop 1974-6-27 7420 Orange Trabuco Oaks, Trabuca Canyon, Cleveland Nat'l Forest 396 Comment
  RSA708537  Polygonum arenastrum Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6102 Orange Caspers Wilderness Park, Hot Springs Cyn., Hot Springs Trail, c.a. 0.16km WSW San Juan Ranger Station, north of SR 74. 212 Comment
  IRVC3043  Polypodium californicum C. Thompson 1965-4-15 HS0570 Orange Trabuco Canyon. Santa Ana Mountains Comment
  IRVC3045  Polypodium californicum A. S. Boughey 1965-3-5 51 Orange Trabuco Canyon. Santa Ana Mountains Comment
  IRVC3046  Polypodium californicum A. S. Boughey 1965-3-5 51 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA124714  Polypodium californicum E. K. Balls, Percy C. Everett 1957-11-25 22837 Orange Trabuco Canyon 640 Comment
  SD48446  Polypodium californicum E. K. Balls, P. C. Everett 1957-11-25 22837 Orange Trabuco Canyon Comment
  UCSB62525  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Santa Ana Mtns., Trabuco Canyon, vicinity of the upper canyon camps. 762 Comment
  UCSB62759  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Santa Ana Mtns., Trabuco Canyon, vicinity of the public camps, upper part of canyon 762 Comment
  IRVC25447  Polystichum imbricans subsp. curtum Fred M. Roberts, K. G. Marsh 1987-5-14 3439 Orange Santa Ana Mtns: Upper Trabuco Canyon, Trabuco Canyon Trail, 1.3km NE Los Pinos Peak. Peninsular Ranges 1231 Comment
  LA208544  Populus trichocarpa W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  JEPS34991  Porophyllum gracile Ethel Rockwell Orange Santa Ana Mts., Trabuco Canyon Comment
  RSA797914  Potentilla glandulosa subsp. glandulosa Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49824 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA797917  Prunus avium Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49828 Orange Santa Ana Mountains: Trabuco Canyon, ca. 8 km east of Trabuco Oaks Comment
  RSA659893  Pseudognaphalium stramineum Karl Price 1988-5-21 42 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  RSA797912  Psoralea macrostachya Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49822 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA392941  Pterostegia drymarioides Albert J. Perkins 1913-4-27 s.n. Orange Trabuco Canon. Comment
  RSA607243  Pterostegia drymarioides R. S. Woglum 1938-5-8 1618 b Orange Peninsular Ranges: Capistrano to Elsinore; Santa Ana Mountains [Orange/Riverside counties]. Comment
  UCD47711  Quercus X acutidens John M. Tucker 1941-5-30 254 Orange Low shrub, in San Juan Canyon, 200 yards west of San Juan Guard Station, Highway 74, Orange County, California. Comment
  UCD47714  Quercus X acutidens John M. Tucker 1941-5-30 255 Orange Low shrub, in San Juan Canyon, 200 yards west of San Juan Guard Station, Highway 74, Orange County, California. Comment
  CAS-BOT-BC61812  Quercus agrifolia C. B. Wolf 1931-3-6 1832 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  CAS-BOT-BC61813  Quercus agrifolia C. B. Wolf 1931-3-6 1832 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  RSA2110  Quercus agrifolia Carl B. Wolf 1931-3-6 1832 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  UC484237  Quercus agrifolia C. B. Wolf 1932-3-6 Orange 1.5 mi below Trabuco Oaks (on Trabuco Canyon Road, w slope Santa Ana Mts.); Santa Ana Mts. 304 Comment
  OBI5834  Quercus agrifolia var. oxyadenia Carl B. Wolf 1931-3-6 1832 Orange 1.5 mi below Trabuco Oaks along Trabuco Cyn rd, West slope Santa Ana Mts 305 Comment
  IRVC16135  Quercus berberidifolia R. Meinzer, T. Mulroy 1971-4-25 s.n. Orange Santa Ana Mountains: Upper Trabuco Canyon. Peninsular Ranges Comment
  RSA7679  Quercus berberidifolia Carl B. Wolf 1933-11-8 5537 Orange Trabuco Canyon along the Trabuco Truck trail Canyon. 915 Comment
  IRVC20499  Quercus chrysolepis Fred M. Roberts 1983-11-4 1147 Orange Upper Trabuco Canyon; 1.2km NE Los Pinos Peak; 3.5km SSE Trabuco Peak Santa Ana Mountains 1320 Comment
  RSA763061  Quercus chrysolepis E. W. Lathrop 1968-5-22 6931 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon. 396 Comment
  RSA659896  Quercus cornelius-mulleri Karl Price 1988-4-29 15 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  GH344482  Quercus dumosa C. B. Wolf 1933-11-8 5537 Unknown Santa Ana Mts., Trabuco Canyon, along Trabuco Truck Trail 914 Comment
  CAS-BOT-BC104666  Quercus wislizeni Carl B. Wolf 1933-10-8 55339 Orange Santa Ana Mts. Main divide motorway, NW side of Trabuco Peak 1310 Comment
  IRVC1347  Quercus wislizeni var. frutescens Mike Munier 1963-4-27 s.n. Orange O'Neill Park Southern Coastal Comment
  IRVC16134  Quercus wislizeni var. frutescens R. Meinzer, T. Mulroy 1971-4-25 s.n. Orange Santa Ana Mountains: Upper Trabuco Canyon. Peninsular Ranges Comment
  IRVC16147  Quercus wislizeni var. frutescens R. Meinzer, T. Mulroy 1971-4-25 s.n. Orange Santa Ana Mountains: Upper Trabuco Canyon. Peninsular Ranges Comment
  RSA769339  Rhamnus californica E. W. Lathrop 1974-6-27 7412 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  SEINET3075983 Image available Rhamnus californica Reid Moran 1975-7-18 22598 Orange Common near Yaeger Mine, upper Trabuco Canyon, Santa Ana Mountains. 725 Comment
  SEINET3075984 Image available Rhamnus californica Reid Moran 1975-7-18 725 Orange Common in bottom of upper Trabuco Canyon, Santa Ana Mountains. 725 Comment
  UCR26626  Rhamnus californica E. W. Lathrop 1966-5-1 6260 Orange Santa Ana Mtns., 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  LA207808  Rhamnus crocea subsp. ilicifolia W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  LA207810  Rhamnus crocea subsp. ilicifolia Carl B. Wolf; 1931-3-6 1845 Orange Santa Ana Mountains, Trabuco Canyon, 0.5 mi. above Trabuco Oaks 457 Comment
  A378382  Rhamnus crocea var. ilicifolia V. O. Bailey 1909-7-15 1177 Unknown Trabuco Canyon Comment
  A378396  Rhamnus crocea var. ilicifolia C. B. Wolf 1931-3-6 1845 Unknown W. slope Santa Ana Mts., Trabuco Canyon, 1/2 mi. above Trabuco Oaks. 457 Comment
  CAS-BOT-BC56026  Rhamnus ilicifolia P. C. Everett 1935-6-19 7242 Orange Santa Ana Mts., Trabuco Canyon, 2 mi. below Forest Service Patrol Station 365 Comment
  CAS-BOT-BC56029  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1845 Orange Santa Ana Mts., Trabuco Canyon, 1/2 mi. above Trabuco Oaks 457 Comment
  CAS-BOT-BC56030  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1841 Orange W. slope Santa Ana Mts., Trabuco Canyon, 1/2 mi. above Trabuco Oaks 457 Comment
  CAS-BOT-BC56031  Rhamnus ilicifolia P. C. Everett 1935-6-19 7242 Orange Santa Ana Mts., Trabuco Canyon, 2 mi. below (SW.) Forest Service Patrol Station 365 Comment
  CAS-BOT-BC56035  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1841 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope Santa Ana Mts. 457 Comment
  CAS-BOT-BC56036  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1845 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope of the Santa Ana Mts. 457 Comment
  CAS-BOT-BC56037  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1838 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope Santa Ana Mts. 457 Comment
  CAS-BOT-BC56038  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1841 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope Santa Ana Mts. 457 Comment
  CAS-BOT-BC56039  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1845 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope of the Santa Ana Mts. 457 Comment
  LA207817  Rhamnus ilicifolia Carl B. Wolf; 1931-3-6 1841 Orange Santa Ana Mountains, Trabuco Canyon, 0.5 mi. above Trabuco Oaks 457 Comment
  OBI5868  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1841 Orange W sloep Santa Ana Mts, Trabuco cyn, 1/2 mi above Trabuco oaks 457 Comment
  OBI5938  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1845 Orange W slope Santa Ana mts, Trabuco cyn, 1/2 mi above Trabuco oaks 457 Comment
  POM243762  Rhamnus ilicifolia Percy C. Everett 1935-6-19 7242 Orange Trabuco Canyon, 2 mi. below forest service patrol station 366 Comment
  RSA1696  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1841 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA1699  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1838 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA2084  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1845 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA391107  Rhamnus ilicifolia H. L. Bauer 1929-4-20 s.n. Orange Trabuco Canon. Comment
  RSA788242  Rhamnus ilicifolia Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49630 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  SBBG27365  Rhamnus ilicifolia P. C. Everett 1935-6-19 Orange Trabuco Cyn, 2 mi below (SW) Forest Service Patrol Station 365 Comment
  SD247724  Rhamnus ilicifolia R. F. Thorne, E. W. Lathrop, W. Wisura. 1977-7-8 49360 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. Comment
  UC592699  Rhamnus ilicifolia P. C. Everett 1935-6-19 Orange 2 mi below Forest Service Patrol Station; Santa Ana Mts., Trabuco Canyon 365 Comment
  UC1121790  Rhamnus tomentella subsp. tomentella J. B. Spring 1931-4-14 32 Orange Cold Spring Canyon Corona Quad. 548 Comment
  UC484250  Rhus C. B. Wolf 1931-3-6 Orange 1 1/2 mi below Trabuco Camp grounds (Trabuco Canyon, w slope Santa Ana Mountains); Santa Ana Mountains 548 Comment
  CAS-BOT-BC167922  Rhus integrifolia C. B. Wolf 1931-3-6 1857 Orange 1 1/2 miles below Trabuco Camp Ground, Trabuco Canyon, west slope Santa Ana Mts. 548 Comment
  RSA2072  Rhus integrifolia C. B. Wolf 1931-3-6 1857 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  SJSU375  Rhus integrifolia A. W. Jacobs 1938-8-4 Orange Trabuca Canyon Rd, Santa Ana Mts c. 6.5 mi NE of El Toro Comment
  CAS-BOT-BC167931  Rhus ovata C. B. Wolf 1931-3-6 1857 Orange 1 1/2 miles below Trabuco Camp Ground, Trabuco Canyon, west slope Santa Ana Mts. 548 Comment
  LA62868  Rhus ovata P. C. Everett; 1935-6-19 2462 Orange Santa Ana Mountains, Trabuco Canyon, 2 mi. above (E.) Forest Service Patrol Station 761 Comment
  LA62870  Rhus ovata C. B. Wolf; 1931-3-6 1857 Orange Santa Ana Mountains, Trabuco Canyon, 1.5 mi. below Trabuco Camp Ground Comment
  POM212356  Rhus ovata C. B. Wolf 1931-3-6 1857 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  RSA13147  Rhus ovata Percy C. Everett 1935-6-19 7240 Orange Trabuco Canyon, 2 mi. above E Forest Service Patrol Station. 762 Comment
  UCSB41759  Rhus ovata Miller, Marsha 1965-1-15 Orange Trabuca Canyon road to lower camp ground Comment
  RSA797918  Ribes amarum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49829 Orange Santa Ana Mountains: Trabuco Canyon, ca. 8 km east of Trabuco Oaks 860 Comment
  OBI5928  Ribes californicum Carl B. Wolf 1931-3-6 1849 Orange 1 mi below Trabuco Camp ground, Trabuco cyn, W slope of the Santa Ana mts 610 Comment
  CAS-BOT-BC93075  Ribes californicum var. hesperium Carl B. Wolf 1931-3-6 1849 Orange 1 mile below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mountains. 609 Comment
  CAS-BOT-BC93076  Ribes californicum var. hesperium Carl B. Wolf 1931-3-6 1849 Orange 1 mile below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mountains. 609 Comment
  CAS-BOT-BC93108  Ribes californicum var. hesperium Ira L. Wiggins 1966-2-4 20409 Orange Trabuco Canyon, about 2 miles above entrance. Comment
  LA205460  Ribes californicum var. hesperium W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mountains, junction of Holy Jim and Trabuco Canyons 670 Comment
  UC484258  Ribes californicum var. hesperium C. B. Wolf 1931-3-6 1849 Orange 1 mi below Trabuco Camp Ground; Santa Ana Mts., Trabuco Canyon 609 Comment
  CAS-BOT-BC173123  Ribes indecorum C. B. Wolf 1931-3-6 1833 Orange 1 1/2 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  CAS-BOT-BC173127  Ribes indecorum C. B. Wolf 1931-3-6 1833 Orange 1 1/2 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  OBI5869  Ribes indecorum Carl B. Wolf 1931-3-6 1833 Orange 1.5 mi below Trabuco Oaks along Trabuco Cyn rd, W slope of Santa Ana Mts 305 Comment
  RSA1703  Ribes indecorum Carl B. Wolf 1931-3-6 1834 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA2068  Ribes indecorum Carl B. Wolf 1931-3-6 1861 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA2109  Ribes indecorum Carl B. Wolf 1931-3-6 1833 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  UC484236 Image available Ribes indecorum C. B. Wolf 1931-3-6 1833 Orange 1 1/2 mi below Trabuco Oaks (Trabuco Canyon Road, w slope of mts.); Santa Ana Mts. 304 Comment
  CAS-BOT-BC168945  Ribes malvaceum Ira L. Wiggins 1966-4-11 20419 Orange Trabuco Canyon, along north-easterly facing slope of S side of stream, about 1/2 mi. above mouth of canyon. Comment
  LA205488  Ribes malvaceum W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA0016317  Ribes malvaceum var. malvaceum Jim Riley 2011-1-3 1 Orange Caspers Wilderness Park (approx. 1 km west of Cleveland National Forest Boundary). Adjacent to Ridge Trail. 474 Comment
  SD236308  Ribes malvaceum var. malvaceum Jim Riley 2011-1-3 1 Orange Caspers Wilderness Park (approx. 1 km west of Cleveland National Forest Boundary). Adjacent to Ridge Trail. 473 Comment
  LA205476  Ribes malvaceum var. viridifolium W. Pequegnat; 1938-4-3 sn Orange Santa Ana Mountains, Trabuco Canyon Comment
  RSA184142  Ribes malvaceum var. viridifolium I. L. Wiggins 1966-2-4 20419 Orange Trabuco Canyon, about 1/2 mi. above canyon mouth Comment
  RSA221073  Ribes malvaceum var. viridifolium E. W. Lathrop 1966-4-6 6144 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA441491  Ribes malvaceum var. viridifolium Lester H. Cushman 1932-3-5 s.n. Orange Trabuco Canyon. Comment
  RSA441492  Ribes malvaceum var. viridifolium Lester H. Cushman 1932-3-5 15733 Orange Trabuco Canyon. Comment
  POM50334  Romneya coulteri L. R. Abrams 1901-06 1852 Orange Trabuco Canyon Comment
  SD98979  Romneya coulteri Darley Howe 1976-6-4 4904 Orange Trabuco Canyon, Santa Ana Mtns. (mak 10/07) 305 Comment
  SDSU892  Romneya coulteri D. F. Howe 1976-6-4 4904 Orange Trabuca Canyon, Santa Ana Mtns. 305 Comment
Read comments
Sep 5 2013
  UCR16445  Romneya coulteri K. T. Ingram 1976-5-2 s.n. Orange Peninsular Range; Santa Ana Mtns., Ortega Highway, Route 74, 12 mi. east of Hwy 405 Comment
  CAS-BOT-BC92181  Romneya coulteri var. coulteri Le Roy Abrams 1901-6-1 1852 Orange Trabuco Canon [Canyon]. Comment
  SD72247  Rorippa nasturtium-aquaticum R. S. Woglum 1932-4-16 Orange Trabuco Canyon Comment
  RSA699220  Rosa californica W. Blanchard 1932-5-15 s.n. Orange Trabuco canyon Comment
  RSA221063  Rubus ursinus E. W. Lathrop 1966-5-1 6259 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA797907  Rubus ursinus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49817 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SDSU9247  Rubus ursinus R. M. Beauchamp 1968-2-17 770 Orange Beside road at creek bridge, east of Catholic cemetary on Trabuco Road. Comment
  UCR26630  Rubus ursinus E. W. Lathrop 1966-5-1 6259 Orange Santa Ana Mtns., 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  POM78664  Rupertia physodes Albert J. Perkins 1920-5-16 s.n. Orange Trabuco Canyon, Comment
  RSA184140  Salix lasiolepis I. L. Wiggins 1966-2-4 20417 Orange Watercourse near mouth of Trabuco Canyon.Waterfront St. near Mission Rock Terminal, San Francisco Comment
  RSA221065  Salix lasiolepis E. W. Lathrop 1966-4-6 6137 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR26632  Salix lasiolepis E. W. Lathrop 1966-4-6 6137 Orange Santa Ana Mtns., 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 396 Comment
  CAS-BOT-BC128466  Salix lasiolepis var. lasiolepis Ira L. Wiggins 1966-2-4 20417 Orange Along watercourse near mouth of Trabuco Canyon Comment
  RSA649075  Salvia apiana Karl Price 1988-5-21 41 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA697874  Salvia apiana L. C. Hull 1934-4-27 s.n. Orange Trabuco Canyon. Comment
  RSA769343  Salvia apiana E. W. Lathrop 1974-6-27 7425 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA542482  Salvia columbariae Fred M. Roberts, Teresa Sholars 1988-3-29 3881 Orange Santa Ana Mountains: Hot Springs Canyon, 0.5 km by road north Hwy 74, 0.9 km ESE Juan Rancho Survey Marker. 223 Comment
  RSA722336  Salvia columbariae L. C. Hull 1934-5-6 s.n. Orange Trabuco Canyin. Comment
  RSA649076  Salvia columbariae var. columbariae Karl Price 1988-4-29 25 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA649077  Salvia mellifera Karl Price 1988-5-22 64 Orange On the side of Hot Springs Canyon Rd. in Hot Springs Canyon. 0.5 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA221030  Sanicula crassicaulis E. W. Lathrop 1966-5-1 6262 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA263760  Sanicula crassicaulis E. W. Lathrop 1970-1-28 7128 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat l Forest. 396 Comment
  SBBG40420  Sanicula crassicaulis J. Ingram 1960-3-29 264 Orange 2 mi above O'Neill Park, Trabuco Cyn Comment
  UC1377706  Sanicula crassicaulis John Ingram 1960-3-29 264 Orange 2 mi above O'Neill Park (Trabuco Canyon); Trabuco Canyon Comment
  UCR27229  Sanicula crassicaulis E. W. Lathrop 1966-5-1 6262 Orange Santa Ana Mtns., 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  RSA699112  Sanicula menziesii J. Vlahos s.n. Orange Trabuco Canyon Comment
  SD41969  Satureja chandleri Darley F. Howe 1947-4-29 1555 Orange San Juan Creek Comment
  SDSU7979  Satureja chandleri D. F Howe 1947-4-29 1555 Orange San Juan Creek, Santa Ana Mts., Orange Co. Comment
  UCR56327  Scandix pecten-veneris Kathy Harper 1989-4-8 s.n. Orange Ronald W. Caspers Wilderness Area, along Bell Canyon Trail. 153 Comment
  RSA797601  Schoenoplectus Robert F. Thorne 1977-11-21 49998 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA769338  Scrophularia californica E. W. Lathrop 1974-6-27 7413 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCD124853  Scrophularia californica R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon. Comment
  RSA788820  Scrophularia californica subsp. floribunda Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49805 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA124718  Selaginella bigelovii E. K. Balls, Percy C. Everett 1957-11-25 22841 Orange Upper Trabuco Canyon, 2.2 mi. ne. from entrance to Holy Jim Canyon. 990 Comment
  RSA85935  Selaginella bigelovii Frank W. Peirson 1923-5-5 3490 Orange Trabuco Canyon, Santa Ana Mountains 518 Comment
  RSA763058  Senecio flaccidus var. douglasii E. W. Lathrop 1973-6-27 7429 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCSB52940  Senecio flaccidus var. douglasii Roberts, Fred 1983-11-4 Orange Santa Ana Mtns.: Main Divide Truck Trail, 0.3km NE Los Pinos Spring; 2.0km ESE Los Pinos Peak 1115 Comment
  RSA768120  Silene laciniata subsp. major E. W. Lathrop 1974-6-27 7422 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  SDSU521  Silybum marianum Curtis B. Kendall 1994-5-18 18 V94G Orange Intersection of Bell Canyon Road and North Prusker Road in the National Audubon Starr Sanctuary. 268 Comment
  RSA366973  Sisyrinchium bellum H. L. Bauer 1929-4-20 s.n. Orange Trabuco Canon. Comment
  IRVC18594  Sitanion jubatum Karlin G. Marsh 1980-8-13 s.nn. Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  RSA427318  Solanum americanum J. C. Marvin 1923-4-1 s.n. Orange Trabuco Canyon Comment
  RSA184193  Solanum douglasii I. L. Wiggins 1966-2-4 20413 Orange Trabuco Canyon, about 0.5 mi. above end of open road. Comment
  RSA221079  Solanum douglasii E. W. Lathrop 1966-5-1 6258 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA263702  Solanum douglasii E. W. Lathrop 1974-6-27 7414 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  POM212279  Solanum umbelliferum Carl B. Wolf 1931-3-6 1850 Orange 0.5 mi. below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 610 Comment
  RSA2079  Solanum umbelliferum Carl B. Wolf 1931-3-6 1850 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
Read comments
Oct 25 2007
  UC484257  Solanum umbelliferum C. B. Wolf 1931-3-6 1850 Orange 1/2 mi below Trabuco Camp Ground (w slope Santa Ana Mountains, Trabuco Canyon); Santa Ana Mountains, Trabuco Canyon 609 Comment
  POM50555  Solidago californica L. R. Abrams 1901-6-16 1851 Orange Trabuco Canyon Comment
  IRVC362  Spergula arvensis M. Savage 1965-4-20 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA769613  Stachys E. W. Lathrop 1974-6-27 7410 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA797911  Stachys rigida subsp. rigida Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49821 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SBBG40460  Stebbinsoseris heterocarpa J. Ingram 1960-3-29 261 Orange 3 mi above O'Neill Park, Trabuco Cyn Comment
  UC1377828  Stebbinsoseris heterocarpa John Ingram 1960-3-29 261 Orange 3 mi above O'Neill Park (Trabuco Canyon); Trabuco Canyon Comment
  CAS-BOT-BC393825  Stellaria media C. B. Wolf 1931-3-6 1854 Orange Trabuco Camp Grounds, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  CAS-BOT-BC393826  Stellaria media C. B. Wolf 1931-3-6 1854 Orange Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  OBI5678  Stellaria media Carl B. Wolf 1931-3-6 1854 Orange Trabuco camp ground, Trabuco cyn, W slope of the Santa Ana Mts 610 Comment
  UC484253  Stellaria media C. B. Wolf 1931-3-6 Orange Trabuco Canyon Santa Ana Mts. (Trabuco Camp Grounds, w slope of Santa Ana Mts) 609 Comment
  UCR240091  Stephanomeria cichoriacea Dick Newell, Judy Booth 2012-10-14 306 Orange Peninsular Range; Santa Ana Mtns., Trabuco Canyon, 2 miles north of Live Oak Cyn. Rd. 457 Comment
  SD95151  Stipa coronata Jack L. Reveal 1975-7-18 1764 Orange Occasional among boulders at upper edge of riparian zone, Trabuco Canyon. 550 Comment
  LA9459  Stipa pulchra LeRoy Abrams; 1903-4-18 3269 Orange Trabuco canyon, Capistrano Comment
  JEPS32500  Styrax officinalis var. redivivus Frank W. Peirson 1923-5-5 3493 Orange n side Trabuco Canyon; Santa Ana Mts., n side of Trabuco Canyon 640 Comment
  UC1564711  Styrax officinalis var. redivivus Reid Moran with Daniel Axelrod and Bob Smart 1975-7-18 22599 Orange n slope of ridge upper Trabuco Canyon (Santa Ana Mountains); , n slope of ridge, upper Trabuco Canyon 900 Comment
  UCR58633  Styrax officinalis var. redivivus Reid Moran, D. Axelrod, Bob Smart 1975-7-18 22599 Orange Santa Ana Mtns., N slope of ridge, upper Trabuco Canyon 900 Comment
  CAS-BOT-BC48095  Styrax redivivus Frank W. Peirson 1923-5-5 3493 Orange Trabuco Canyon, Santa Ana Mts. - Near canyon bottom in shade. Comment
  POM19056  Styrax redivivus F. W. Peirson 1923-5-5 3493 Orange Trabuco Canyon. 640 Comment
  POM3387  Styrax redivivus C. B. Bradshaw 1903-5-30 s.n. Orange Trabuco Canyon. Comment
  RSA124719  Styrax redivivus E. K. Balls, Percy C. Everett 1957-11-25 3250 Orange Upper Trabuco Canyon, 2.2 mi. ne. from entrance to Holy Jim Canyon, 991 Comment
  RSA514322  Styrax redivivus Reid Moran, Daniel I. Axelrod, B. Smart 1975-7-18 22599 Orange North slope of ridge, upper Trabuco Canyon. 900 Comment
  SD127487  Styrax redivivus Reid Moran, Jack Reveal and Bob Smart 1975-7-18 22599 Orange North slope of ridge, upper Trabuco Canyon, Santa Ana Mts. 900 Comment
  SEINET179446  Suaeda esteroa Lawrence M. Booth 1932-12-13 1373 Orange Newport Bay. Comment
  RSA542416  Thalictrum fendleri Fred M. Roberts, Karlin G. Marsh 1987-5-14 3441 Orange Santa Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail , 1.3 km NE Los Pinos Peak 1231 Comment
  SD216518  Thalictrum fendleri var. polycarpum Jay B. Walker 1995-3-9 1237 Orange Cleveland National Forest, Trabuco District; at junction of USFS Road 6S10 and San Juan Trail 99 Comment
  RSA221087  Thalictrum polycarpum E. W. Lathrop 1966-4-6 6136 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA399584  Thalictrum polycarpum Albert J. Perkins 1913-4-17 s.n. Orange Trabuco Canyon Comment
  RSA797913  Thalictrum polycarpum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49823 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA708535  Tribulus terrestris Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6103 Orange Caspers Wilderness Park, Hot Springs Cyn., Hot Springs Trail, c.a. 0.16km WSW San Juan Ranger Station, north of SR 74. 212 Comment
  SEINET8999687 Image available Trichostema lanatum Unknown 1963-7-26 32834 Orange Trabuco District, Santa Ana Mts., Cleveland National Forest 1189 Comment
  RSA1549  Trifolium obtusiflorum J. T. Howell 1928-7-10 1091 Orange Trabucco Canyon, Santa Ana Mts. 518 Comment
  UC484195  Trifolium obtusiflorum J. T. Howell 1928-7-10 1091 Orange Trabuco Canyon Santa Ana Mtns 518 Comment
  RSA797825  Trifolium tridentatum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49814 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA797910  Trifolium tridentatum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49820 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA263710  Turricula parryi E. W. Lathrop 1974-6-27 7427 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  CAS-BOT-BC91052  Umbellularia californica Ira L. Wiggins 1966-2-4 20412 Orange Trabuco Canyon about 0.5 mile above end of open road. Comment
  OBI30188  Umbellularia californica Don Holland 1971-3-24 P. 047 Orange Trabuco Cyn approx 7 mi from Santiago Cyn rd past upper campground chaparral 427 Comment
  RSA16471  Umbellularia californica P. C. Everett 1935-6-19 7237 Orange Trabuco Canyon, 1mile below W summit of truck trail. 1006 Comment
  RSA184183  Umbellularia californica I. L. Wiggins 1966-2-4 20412 Orange Trabuco Canyon, about 0.5 mi. above end of open road. Comment
  RSA649330  Umbellularia californica Kathy Lynn 1971-2-27 71 -17 Orange Trabucco, lower Trabuco Cyn., approx. 3 mi. from O'Neil Park. 304 Comment
  RSA7633  Umbellularia californica C. B. Wolf 1933-11-8 5536 Orange Trabuco Canyon on So. wall opposite the Trabuco Truck Trail. 915 Comment
  SFV19104  Veronica persica J. N. Hogue, R. L. Allen 2004-3-14 213 .1 Orange Santa Ana Mountains Trabuco Canyon. O'Neil Park. 365 Comment
  SDSU9689  Vinca major Curtis B. Kendall 1994-5-18 18 V94E Orange West side of Bell Canyon Road across from the ranch house, at the National Audubon Society Starr Ranch Sancturary. 305 Comment
  RSA0121781  Vitis girdiana Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6112 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, ca. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  SDSU11398  Vitis girdiana Curtis B. Kendall 1994-5-18 18 V94C Orange West side of Bell Canyon Road between the flat concrete stream crossing and the three pipe crossing, in the National Audobon Socienty Starr Ranch Sanctuary 311 Comment
  UCR26981  Vitis girdiana E. W. Lathrop 1966-5-13 6299 Orange Santa Ana Mountains, 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  RSA734399  Vulpia myuros Keith E. Hoffmaster 1935-3-17 554 Orange Near El Toro (Trabuco rd.) Comment
  RSA708529  Washingtonia robusta Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6110 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  CAS-BOT-BC77784  Woodwardia fimbriata Ira L. Wiggins 1966-2-4 20416 Orange Trabuco Canyon, about 1/2 mi. above end of open road Comment
  IRVC196  Woodwardia fimbriata C. Cowper 1965-4-18 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA184194  Woodwardia fimbriata I. L. Wiggins 1966-2-4 20416 Orange Trabuco Canyon, about 0.5 mi. above end of open road. Comment
  RSA220985  Woodwardia fimbriata E. W. Lathrop 1966-5-1 6263 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA698529  Woodwardia fimbriata Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  RSA699294  Woodwardia fimbriata Jeanne Paxton 1934-5-20 s.n. Orange Trabuco Canyon Comment
  RSA797817  Woodwardia fimbriata R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49806 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR16848  Woodwardia fimbriata Dave Baasch 1972-1-9 720109- 01 Orange Peninsular Range: Santa Ana Mountains, Trabuco Creek, 4.5 mi east of town of Trabuco Canyon 488 Comment
  RSA708732  Xanthium strumarium Fred M. Roberts, Robert L. Allen, Chris M. Barnhill 2004-8-21 6116 Orange Santa Ana Mountains; Casper Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, ca. 0.4 km SW San Juan Ranger Station, N of SR 74. 214 Comment
  RSA378461  Zigadenus fremontii J. C. Marvin 1923-4-1 s.n. Orange Trabuco Canyon Comment



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