Search Results — 555 specimen records retrieved (513 records with coordinates)
Results for search: County=LOS ANGELES; Source=All; Collector=Elvin;   

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC168203  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-6-19 2948 Los Angeles Western Transverse Range: hills west of San Martinez Grande Canyon and north of CA Hwy 126, Newhall Ranch 366 Comment
  CAS-BOT-BC172758  Sisymbrium altissimum Mark A. Elvin; Cathleen Weigand 2003-5-22 2895 Los Angeles Santa Susana Mtns.: crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  CAS-BOT-BC221701  Monardella hypoleuca subsp. hypoleuca Mark A. Elvin; Adam Clause 2008-5-30 5972 Los Angeles Transverse Ranges: Santa Monica Mtns: Santa Ynez Cyn, ca. 300m N of Verde De La Montura Rd. Comment
  CAS-BOT-BC248285  Gilia angelensis Mark A. Elvin 2003-4-22 2529 Los Angeles Western Transverse Range: Newhall Ranch, bee site on open former oil well pad just east of Grapevine Mesa, S of Santa Clara River and Hwy 126, c. 4 mi. east of Ventura Co. line 314 Comment
  CAS-BOT-BC248874  Calochortus weedii var. vestus Mark A. Elvin; Margie P. Elvin; K. Elvin; A. Elvin 2003-7-1 2964 Los Angeles Western Transverse Range; Santa Susana Mountains: crest of the mountains at head of Salt Creek, 6.5 km SW of Stevenson Ranch 927 Comment
  CAS-BOT-BC250939  Chorizanthe parryi var. fernandina Mark A. Elvin; Cathleen Weigand 2003-4-8 2453 Los Angeles Santa Clarita Valley: Newhall Ranch Commerce Center, confluence of Hasley Canyon and Castaic Creek, N of Hwy 126 319 Comment
  CAS-BOT-BC250940  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-6-30 2961 Los Angeles Western Transverse Range; Santa Clarita Valley Area: Newhall Ranch, west side of Grapevine Mesa, 4 km SW (216 deg. ) of intersection of I-5 Fwy and Hwy 126 366 Comment
  CAS-BOT-BC252762  Chorizanthe parryi var. fernandina Mark Elvin 2003-6-19 2948 Los Angeles Hills west of San Martinez Grande Canyon and north of CA Hwy 126, Newhall Ranch, Val Verde 7.5' Q., Western Transverse Range 365 Comment
  CAS-BOT-BC257278  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-4-24 2527 Los Angeles Santa Clara River Valley: Valencia, Newhall Ranch, entrance to Magic Mountain Theme Park, survey area 62 549 Comment
  CAS-BOT-BC506650  Thysanocarpus conchuliferus Mark A. Elvin; Tarja Sagar 2009-3-27 6212 Los Angeles Transverse Ranges: Santa Monica Mtns: Semler Open Space, along Pentachaeta Trail; S of Lindero Cyn Dr. and Triunfo Cyn Rd. 373 Comment
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Nov 29 2017
  CDA28651  Cuscuta campestris Mark A. Elvin 2007-11-22 5857 Los Angeles Southern Coastal; Downey; near intersection of Rives Avenue and 6th Street. Elevation: 37 meters/120 feet. 0 Comment
  CHSC101721  Astragalus miguelensis Mark Elvin; Orlando Mistretta 1996-3-24 120 Los Angeles Channel Island; San Clemente Island. Comment
  CHSC101906  Lyonothamnus floribundus Mark Elvin; Michael Wall, Jennifer Stone 1996-8-7 310 Los Angeles Channel Islands; San Clemente Island; Conchulagua Canyon. In canyon floor, shelf under a 25' cliff. 213 Comment
  CHSC102096  Solidago velutina subsp. californica Mark Elvin; Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 353 Los Angeles Transverse Ranges; San Gabriel Mountains region: San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 1.8 mi W of gate. Steep N face. Comment
  CHSC109264  Sedum spathulifolium Mark Elvin; Anne Marie Ruff 1996-8-1 301 Los Angeles Transverse Ranges, San Gabriel Mountains region: San Gabriel Mountains. Angeles National Forest. Glendora Ridge Road. 3.9 mi from gate. Cliff on roadcut. Comment
  CHSC109265  Clematis lasiantha Mark Elvin; Anne Marie Ruff 1996-8-1 306 Los Angeles Transverse Ranges, San Gabriel Mountains region: San Gabriel Mountains. Angeles National Forest. Glendora Ridge Road. Comment
  CHSC109699  Senecio flaccidus var. douglasii Mark Elvin; Anne Marie Ruff 1996-8-1 304 Los Angeles Transverse Ranges, San Gabriel Mountains regions: San Gabriel Mountains. Angeles National Forest. Glendora Ridge Road. N side of road W of 90 degree curve on road. Road mile 7.75. Comment
  CHSC110012  Comarostaphylis diversifolia subsp. planifolia Mark Elvin; Sarah Crockett 1997-3-17 374 Los Angeles Channel Islands; Santa Catalina Island: Cape Canyon. W side of canyon. Comment
  CHSC110013  Ceanothus megacarpus var. insularis Mark Elvin; Sarah Crockett 1997-3-17 376 Los Angeles Channel Islands; Santa Catalina Island. Comment
  CHSC110017  Boykinia rotundifolia Mark Elvin; Anne Marie Ruff 1996-8-1 298 Los Angeles Transverse Ranges; San Gabriel Mountains region: San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 1.8 mi from gate. South side. Comment
  CHSC110019  Rhamnus californica Mark Elvin; Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 360 Los Angeles Transverse Ranges; San Gabriel Mountains region: San Gabriel Mtns. Claremont. ~0.6mi W of Mt. Baldy Rd. in Evey Canyon. Comment
  CHSC110020  Lepechinia fragrans Mark Elvin; Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 349 Los Angeles Transverse Ranges; San Gabriel Mountains region: San Gabriel Mtns. Angeles National Forest. Glendora Ridge Rd. 7.3mi W of gate at Mt. Baldy Road. S side road on bank. Comment
  CHSC110021  Prunus ilicifolia subsp. lyonii Mark Elvin; Michael Wall, Jennifer Stone 1996-8-7 308 Los Angeles Channel Islands; San Clemente Island: Conchulagua Canyon. In canyon floor. Comment
  CHSC110027  Solanum wallacei Mark Elvin; Sarah Crockett 1977-3-17 377 Los Angeles Channel Islands; Santa Catalina Island: Alone Cape Canyon Road. On E side at cliff. Where creek comes up to Road. Comment
  CHSC110030  Crossosoma californicum Mark Elvin; Michael Wall 1997-5-18 378 Los Angeles Channel Islands; Santa Catalina Island: Cape Canyon Ridge. W side of canyon. With Rock outcrop 200' above valley floor. ~1/2 mile south of well house along Cape Canyon Road. Comment
  IRVC26174  Stanleya pinnata var. pinnata Mark A. Elvin 2003-4-9 2468 Los Angeles Newhall Ranch Commerce Center, canyon N of SR 126 from 'Grapevine Mesa' Santa Clarita Valley 335 Comment
  IRVC26175  Lasthenia glabrata subsp. coulteri Mark A. Elvin, Cathleen Weigand 2003-4-7 2435 Los Angeles Newhall Ranch, junction of Hasley Canyon and Castaic Creek Castaic Valley 335 Comment
  IRVC26176  Calochortus clavatus Mark A. Elvin, Cathleen Weigand 2003-4-7 2436 Los Angeles Newhall Ranch, junction of Hasley Canyon and Castaic Creek Castaic Valley 335 Comment
  IRVC26187  Eriogonum fasciculatum var. foliolosum Mark A. Elvin 2003-5-25 2927 B Los Angeles Newhall Ranch, Salt Creek, mesa in middle of Salt Creek drainage NE end of Santa Susana Mtns. 595 Comment
  IRVC26188  Antirrhinum multiflorum Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2927 Los Angeles Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. Santa Susana Mtns. 915 Comment
  IRVC26193  Dryopteris arguta Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2926 Los Angeles Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. Santa Susana Mtns. 915 Comment
  IRVC26194  Clarkia affinis Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2922 Los Angeles Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. Santa Susana Mtns. 915 Comment
  IRVC26200  Eschscholzia californica Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2920 Los Angeles Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. Santa Susana Mtns. 915 Comment
  IRVC26202  Gilia capitata Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2919 Los Angeles Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. Santa Susana Mtns. 915 Comment
  IRVC26256  Camissonia boothii subsp. decorticans Mark A. Elvin 2003-4-9 2471 Los Angeles Newhall Ranch Commerce Center, canyon N of SR 126 from 'Grapevine Mesa' Santa Clarita Valley 335 Comment
  IRVC26257  Marah macrocarpa Mark A. Elvin 2003-4-9 2470 Los Angeles Newhall Ranch Commerce Center, canyon N of SR 126 from 'Grapevine Mesa' Santa Clarita Valley 335 Comment
  IRVC26282  Cirsium occidentale var. occidentale Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2912 Los Angeles Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. Santa Susana Mtns. 915 Comment
  IRVC26283  Cirsium occidentale var. californicum Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2913 Los Angeles Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. Santa Susana Mtns. 915 Comment
  IRVC26284  Cirsium occidentale Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2914 Los Angeles Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. Santa Susana Mtns. 915 Comment
  IRVC26285  Camissonia graciliflora Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2915 Los Angeles Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. Santa Susana Mtns. 915 Comment
  IRVC26286  Dendromecon rigida Mark A. Elvin, Cathleen Weigand 2003-5-22 2898 Los Angeles crest of mountains at head of Salt Canyon, Newhall Ranch Santa Susana Mtns. 915 Comment
  IRVC26287  Scrophularia californica Mark A. Elvin, Cathleen Weigand 2003-5-22 2900 Los Angeles crest of mountains at head of Salt Canyon, Newhall Ranch Santa Susana Mtns. 915 Comment
  IRVC26288  Dicentra ochroleuca Mark A. Elvin, Cathleen Weigand 2003-5-22 2901 Los Angeles crest of mountains at head of Salt Canyon, Newhall Ranch Santa Susana Mtns. 915 Comment
  IRVC26289  Ribes malvaceum var. viridifolium Mark A. Elvin, Cathleen Weigand 2003-5-22 2903 Los Angeles crest of mountains at head of Salt Canyon, Newhall Ranch Santa Susana Mtns. 915 Comment
  IRVC26306  Bromus grandis Mark A. Elvin, Cathleen Weigand 2003-5-22 2908 Los Angeles crest of mountains at head of Salt Canyon, Newhall Ranch Santa Susana Mtns. 915 Comment
  IRVC26307  Stephanomeria cichoriacea Mark A. Elvin, Cathleen Weigand 2003-5-22 2907 Los Angeles crest of mountains at head of Salt Canyon, Newhall Ranch Santa Susana Mtns. 915 Comment
  IRVC26308  Trichostema lanatum Mark A. Elvin, Cathleen Weigand 2003-5-22 2906 Los Angeles crest of mountains at head of Salt Canyon, Newhall Ranch Santa Susana Mtns. 915 Comment
  IRVC26310  Malacothamnus marrubioides Mark A. Elvin 2003-8-13 2988 Los Angeles Newhall Ranch, Santa Clara River at the mouth of Long Canyon Santa Clarita Valley 274 Comment
  IRVC26311  Malacothamnus fremontii Mark A. Elvin 2003-8-13 2986 Los Angeles Newhall Ranch, Santa Clara River at the mouth of Long Canyon Santa Clarita Valley 274 Comment
  IRVC26910  Eriogonum angulosum Mark A. Elvin, Kim Marsden 2003-8-8 2970 B Los Angeles Newhall Ranch, SW face of Potrero Mesa Santa Clarita Valley 305 Comment
  IRVC26921  Eriogonum cithariforme var. agninum Mark A. Elvin 2003-5-25 2927 A Los Angeles Newhall Ranch, Salt Creek, mesa in middle of Salt Creek drainage NE end of Santa Susana Mtns. 595 Comment
  IRVC26924  Eriogonum gracile var. gracile Mark A. Elvin, Kim Marsden 2003-8-8 2970 A Los Angeles Newhall Ranch, Potrero Canyon SW of the junction of Potrero Creek and the Santa Clara River Santa Clarita Valley 305 Comment
  IRVC26930  Eriogonum gracile var. gracile Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-14 3002 Los Angeles Newhall Ranch, mouth of Castaic Creek, S of SR 126 Santa Clarita Valley 290 Comment
  IRVC26953  Argemone munita Mark A. Elvin, Kim Marsden, Cathleen Weigand 2003-8-15 3006 Los Angeles Newhall Ranch, mouth of Castaic Creek, S of SR 126 Santa Clarita Valley 290 Comment
  IRVC26956  Nemophila menziesii var. menziesii Mark A. Elvin 2003-5-1 s.n. Los Angeles Newhall Ranch, Castaic Mesas. Ca 1 mi SW of Castaic Lagoon at the W edge of a mesa, N of Charlie Canyon Santa Clarita Valley 366 Comment
  IRVC26963  Eriogonum fasciculatum var. fasciculatum Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-14 2998 Los Angeles Newhall Ranch, mouth of Castaic Creek, S of SR 126 Santa Clarita Valley 290 Comment
  IRVC26964  Gnaphalium canescens subsp. microcephalum Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-14 2999 Los Angeles Newhall Ranch, mouth of Castaic Creek, S of SR 126 Santa Clarita Valley 290 Comment
  IRVC26985  Epilobium canum subsp. canum Mark A. Elvin 2003-8-13 2981 Los Angeles Newhall Ranch, Potrero Canyon S of Potrero Creek NE end of the Santa Susana Mtns. 360 Comment
  IRVC27018  Stachys albens Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-13 2989 Los Angeles S side of the Santa Clara River, ca 200 m upstream from the mouth of Potrero Creek Santa Clarita Valley 274 Comment
  IRVC27022  Baccharis emoryi Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-13 2996 Los Angeles S side of the Santa Clara River, ca 200 m upstream from the mouth of Potrero Creek Santa Clarita Valley 274 Comment
  IRVC27044  Malacothamnus fasciculatus Mark A. Elvin 2003-8-13 2982 Los Angeles Newhall Ranch, Potrero Canyon S of Potrero Creek NE end of the Santa Susana Mtns. 360 Comment
  IRVC27938  Eriogonum baileyi var. baileyi Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-14 3003 Los Angeles Newhall Ranch, mouth of Castaic Creek, S of SR 126 Santa Clarita Valley 290 Comment
  IRVC28395  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-6-19 2948 Los Angeles hills west of San Martinez Grande Canyon and north of CA Hwy 126, Newhall Ranch Western Transverse Range 366 Comment
  IRVC28622  Allophyllum divaricatum Mark A. Elvin, Cathleen Weigand 2003-5-22 2894 Los Angeles crest of mountains at head of Salt Canyon, Newhall Ranch Santa Susana Mtns. 915 Comment
  IRVC28623  Vicia americana Mark A. Elvin, Cathleen Weigand 2003-5-22 2893 Los Angeles crest of mountains at head of Salt Canyon, Newhall Ranch Santa Susana Mtns. 915 Comment
  IRVC28844  Calandrinia ciliata Mark A. Elvin, Cathleen Weigand 2003-4-8 2465 Los Angeles Newhall Ranch Commerce Center, ridge between Hasley and Castaic Creeks Santa Clarita Valley 351 Comment
  IRVC28845  Cryptantha microstachys Mark A. Elvin, Cathleen Weigand 2003-4-8 2464 Los Angeles Newhall Ranch Commerce Center, ridge between Hasley and Castaic Creeks Santa Clarita Valley 351 Comment
  IRVC28846  Ceanothus cuneatus Mark A. Elvin, Cathleen Weigand 2003-4-8 2458 Los Angeles Newhall Ranch, flats S of confluence of Hasley Canyon with Castaic Creek Santa Clarita Valley 297 Comment
  IRVC28848  Chrysothamnus nauseosus Mark A. Elvin, Cathleen Weigand 2003-4-8 2456 Los Angeles Newhall Ranch, flats S of confluence of Hasley Canyon with Castaic Creek Santa Clarita Valley 297 Comment
  IRVC28849  Trifolium albopurpureum Mark A. Elvin, Cathleen Weigand 2003-4-8 2454 Los Angeles Newhall Ranch, confluence of Hasley Canyon with Castaic Creek, ridge N of the confluence Castaic Valley 351 Comment
  IRVC28850  Cryptantha micrantha var. lepida Mark A. Elvin, Cathleen Weigand 2003-4-7 2451 Los Angeles Newhall Ranch Commerce Center, S of Castaic Creek, N of SR 126 Santa Clarita Valley 297 Comment
  IRVC28851  Lupinus microcarpus var. densiflorus Mark A. Elvin, Cathleen Weigand 2003-4-7 2445 Los Angeles Newhall Ranch Commerce Center, S of Castaic Creek, N of SR 126 Santa Clarita Valley 297 Comment
  IRVC28853  Oenothera californica Mark A. Elvin, Cathleen Weigand 2003-4-7 2441 Los Angeles Newhall Ranch Commerce Center, S of Castaic Creek, N of SR 126 Santa Clarita Valley 297 Comment
  IRVC28855  Trifolium ciliolatum Mark A. Elvin, Cathleen Weigand 2003-4-7 2438 A Los Angeles Newhall Ranch, junction of Hasley Canyon and Castaic Creek Castaic Valley 335 Comment
  IRVC28856  Festuca microstachys Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2925 Los Angeles Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. Santa Susana Mtns. 915 Comment
  IRVC29655  Dudleya lanceolata Mark A. Elvin 2003-6-12 2942 Los Angeles Newhall Ranch, S side of Potrero Canyon, S of Potrero Mesa Santa Clarita Valley 335 Comment
  IRVC29656  Phacelia imbricata subsp. imbricata Mark A. Elvin 2003-6-12 2943 Los Angeles Newhall Ranch, S side of Potrero Canyon, S of Potrero Mesa Santa Clarita Valley 335 Comment
  IRVC29657  Hemizonia fasciculata Mark A. Elvin 2003-6-12 2944 Los Angeles Newhall Ranch, S of Magic Mountain Amusement Park, W of The Old Road Santa Clarita Valley 366 Comment
  IRVC29658  Clarkia purpurea Mark A. Elvin 2003-6-12 2945 Los Angeles Newhall Ranch, S of Magic Mountain Amusement Park, W of The Old Road Santa Clarita Valley 366 Comment
  IRVC29659  Lagophylla ramosissima Mark A. Elvin 2003-6-12 2946 Los Angeles Newhall Ranch, S of Magic Mountain Amusement Park, W of The Old Road Santa Clarita Valley 366 Comment
  LA210158  Clarkia bottae Mark A. Elvin; Tarja Sagar 2013-5-31 7155 Los Angeles Santa Monica Mountains, Malibu Canyon, Malibu Canyon Road S of tunnel 137 Comment
  LA211556  Salsola tragus Mark A. Elvin; 2928 Los Angeles SANTA CLARITA VALLEY, Newhall Ranch, Commerce Center site, South end of ridge Northeast of confluence of Castaic Creek and Hasley Creek, Survey Area 52. 313.0 Comment
  LA211557  Salsola tragus Mark A. Elvin; 2003-6-9 2928 Los Angeles SANTA CLARITA VALLEY, Newhall Ranch, Commerce Center site, South end of ridge Northeast of confluence of Castaic Creek and Hasley Creek, Survey Area 52. 313.0 Comment
  OBI72020  Helianthus californicus Mark A. Elvin, J. M. Porter, Anuja Parikh 2003-11-5 3099 Los Angeles Liebre Mts: Agua Ducle Cyn, 100m N of SR 14 (Agua Dulce 7.5') 701 Comment
  OBI72021  Helianthus inexpectatus Mark Elvin 2002-7-17 2099 Los Angeles Western Transverse Range: Newhall ranch, large natural spring at N foot of "Airport Mesa", 0.75 mi SW of Castaic Jctn, above confluence of Castaic Crk with Santa Clara River (Newhall 7.5' Q 305 Comment
  OBI72022  Helianthus inexpectatus Mark Elvin, Tricia Wotipka 2002-9-5 2140 Los Angeles Western Transverse Range: Newhall ranch, large natural spring at N foot of "Airport Mesa", 0.75 mi SW of Castaic Jctn, above confluence of Castaic Crk with Santa Clara River (Newhall 7.5' Q 305 Comment
  OBI79413  Helianthus inexpectatus Mark Elvin 2014-9-12 s.n. Los Angeles Western Transverse Range, Newhall Ranch, large natural spring at north foot of "Airport Mesa," 0.75 mi SW of Castaic Junction, above confluence of Castaic Creek with Santa Clara River. 305 Comment
  OBI81424  Monardella hypoleuca subsp. hypoleuca Mark A. Elvin, Adam Clause 2008-5-30 5972 Los Angeles Transverse Range; Santa Monica Mtns.; Santa Ynez Canyon, c. 300 m north of Ver de La Montura Rd. Comment
  RSA0012121  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-4-24 2527 Los Angeles Valencia, Newhall Ranch, entrance to Magic Mountain Theme Park, survey area 62 366 Comment
  RSA0012122  Lomatium dasycarpum Mark A. Elvin 2003-5-1 2497 Los Angeles Newhall Ranch, Castaic Mesas, c. 1.5 km east of Castaic Lagoon in Charlie Canyon, survey area 69 396 Comment
  RSA0012123  Eriastrum sapphirinum Mark A. Elvin 2003-5-1 2495 Los Angeles Newhall Ranch, Castaic Mesas, c. 1.5 km east of Castaic Lagoon in Charlie Canyon, survey area 69 396 Comment
  RSA0012148  Atriplex suberecta Mark A. Elvin, M. S. Enright 2002-7-22 2110 Los Angeles Newhall Ranch, Salt Creek 274 Comment
  RSA0012181  Aesculus californica Mark A. Elvin, Brock Ortega 2002-4-18 1924 Los Angeles Hacienda Heights 198 Comment
  RSA0021651  Ribes malvaceum Mark A. Elvin, Orlando Mistretta 1996-3-24 135 Los Angeles San Clemente Island. Eagle Canyon. 274 Comment
  RSA0047058  Castilleja grisea Mark A. Elvin, Gerry Allan 1995-5-21 18 Los Angeles San Clemente Island: west side of island, in south branch of Horse Beach Canyon on lower terrace. 15 Comment
  RSA0074420  Heterotheca grandiflora Mark Elvin, Orlando Mistretta 1996-3-24 129 A Los Angeles Channel Islands; San Clemente Island. 427 Comment
  RSA0098219  Spergularia macrotheca Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark 1996-4-19 148 Los Angeles San Clemente Island. North Head, top of slopes between 1st and 2nd terrace point at N.H. rock. 12 Comment
  RSA0098747  Spergularia macrotheca var. macrotheca Mark Elvin, Michael Wall, Jennifer Stone 1996-8-7 318 Los Angeles San Clemente Island. North head. NW of Bud's across from Bird Rock on 1st and 2nd terraces and slope between terraces along N shore within 100m of ocean. 9 Comment
  RSA0124996  Senecio lyonii Mark A. Elvin, Orlando Mistretta 1996-3-24 123 Los Angeles San Clemente Island 9 Comment
  RSA582909  Brodiaea kinkiensis Mark A. Elvin, Gery Allan, Timothy S. Ross 1995-5-21 20 Los Angeles San Clemente Island: W side of island on upper terrace 1/4 mi. from Ridge Road to Stone Field Station. 244 Comment
  RSA582910  Malacothamnus clementinus Mark A. Elvin, Gery Allan 1995-5-21 17 Los Angeles San Clemente Island: W side of island on terrace at edge of upper end S fork of Horse Beach Canyon. Comment
  RSA582912  Lupinus guadalupensis Mark Elvin, Gery Allan, T. S. Ross 1995-5-21 19 Los Angeles San Clemente Island: west side of island; at confluence of three fingers of upper Chenetti Canyon. Comment
  RSA582913  Castilleja grisea Mark A. Elvin, Gery Allan 1995-5-20 16 Los Angeles San Clemente Island: SW tip of island S of Guds on lowest coastal terrace; alt- 10' 3 Comment
  RSA582914  Delphinium variegatum subsp. thornei Mark A. Elvin, Gerry Allan, T. S. Ross, Jennifer Stone 1995-5-19 15 Los Angeles San Clemente Island. E side of island; North Fork of Canchalagua Canyon along seasonal creek. Comment
  RSA582915  Triteleia clementina Mark A. Elvin, Gery Allan, Timothy S. Ross, Jennifer Stone 1995-5-19 13 Los Angeles San Clemente Island. E side of island; North Fork of Canchalagua Canyon along seasonal creek. Comment
  RSA582917  Calochortus palmeri var. palmeri Mark Elvin, Orlando Mistretta 1995-5-8 6 Los Angeles Devil Punch Bowl. Comment
  RSA678164  Sanicula arguta Mark Elvin, Orlando Mistretta 1996-3-24 128 Los Angeles Eagle Canyon, San Clemente Island Comment
  RSA678165  Triteleia clementina Mark A. Elvin, Orlando Mistretta 1996-3-24 126 Los Angeles Eagle Canyon, San Clemente Island Comment
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Dec 12 2010
  RSA678166  Mimulus flemingii Mark A. Elvin, Orlando Mistretta 1996-3-24 125 Los Angeles Eagle Canyon, San Clemente Island Comment
  RSA678411  Lepidium lasiocarpum Mark Elvin 1996-8-8 325 Los Angeles San Clemente Island. West dunes along road to south end of dunes 9 Comment
  RSA678432  Gnaphalium microcephalum Mark Elvin, Orlando Mistretta, Jennifer Stone 1996-3-23 117 Los Angeles San Clemente Island 53 Comment
  RSA678434  Cryptantha traskiae Mark Elvin, Orlando Mistretta 1996-3-24 121 Los Angeles San Clemente Island. Comment
  RSA678435  Stephanomeria blairii Mark A. Elvin, Orlando Mistretta 1996-3-24 129 Los Angeles San Clemente Island. 427 Comment
  RSA678436  Camissonia guadalupensis subsp. clementina Mark A. Elvin, Orlando Mistretta 1996-3-24 122 Los Angeles San Clemente Island. Comment
  RSA678461  Malacothamnus clementinus Mark A. Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 169 Los Angeles San Clemente Island. Lemon Tank. Comment
  RSA678462  Scrophularia villosa Mark A. Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 168 Los Angeles San Clemente Island. Stone field station just below balcony. Comment
  RSA678463  Scrophularia villosa Mark A. Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 168 Los Angeles San Clemente Island. Stone field station just below balcony. Comment
  RSA678464  Triteleia clementina Mark A. Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 167 Los Angeles San Clemente Island. 3rd canyon south of Bryce Comment
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Jul 1 2014
  RSA678465  Hazardia cana Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 166 Los Angeles San Clemente Island. 3rd canyon south of Bryce. Comment
  RSA678466  Lithophragma maximum Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 165 Los Angeles San Clemente Island. 3rd canyon south of Bryce 305 Comment
  RSA678468  Galium catalinense subsp. acrispum Mark A. Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 159 Los Angeles San Clemente Island. 3rd canyon south of Bryce Comment
  RSA678486  Atriplex watsonii Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-19 153 Los Angeles San Clemente Island. Wilson Cove east of Galley and power plant. 46 Comment
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Jan 14 2009
  RSA678487  Trifolium Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark 1996-4-19 152 Los Angeles San Clemente Island. West of North Head flats. South of Radar towers at North pt. of island 12 Comment
  RSA678489  Galium catalinense subsp. acrispum Mark A. Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 158 Los Angeles San Clemente Island. Second canyon S of Bryce Canyon, on loamy banks along cyn floor. Comment
  RSA678490  Atriplex watsonii Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark 1996-4-19 150 Los Angeles San Clemente Island. North Head (NE side). Lower terrace slopes. 12 Comment
  RSA678688  Hazardia cana Mark Elvin, Orlando Mistretta 1996-3-24 138 Los Angeles San Clemente Island. Eagle Canyon. 244 Comment
  RSA678692  Castilleja grisea Mark A. Elvin, Orlando Mistretta 1996-3-24 133 Los Angeles San Clemente Island. Eagle Canyon 373 Comment
  RSA678693  Galium catalinense subsp. acrispum Mark A. Elvin, Orlando Mistretta 1996-3-24 132 Los Angeles San Clemente Island. Eagle canyon 381 Comment
  RSA678695  Galvezia speciosa Mark A. Elvin, Orlando Mistretta 1996-3-24 130 Los Angeles San Clemente Island. 427 Comment
  RSA678696  Lavatera assurgentiflora Mark A. Elvin, Orlando Mistretta 1996-3-22 116 Los Angeles San Clemente Island Comment
  RSA678697  Lotus dendroideus var. traskiae Mark Elvin, Orlando Mistretta 1996-3-24 124 Los Angeles San Clemente Island. Eagle Canyon 457 Comment
  RSA678699  Astragalus miguelensis Mark Elvin, Orlando Mistretta 1996-3-24 120 Los Angeles San Clemente Island. Comment
  RSA678700  Astragalus miguelensis Mark Elvin, Orlando Mistretta 1996-3-22 114 Los Angeles San Clemente Island Comment
  RSA678701  Eriogonum giganteum var. giganteum Mark A. Elvin, Orlando Mistretta 1996-3-24 139 Los Angeles San Clemente Island. Eagle Canyon Comment
  RSA678702  Eriogonum giganteum var. giganteum Mark A. Elvin, Orlando Mistretta 1996-3-24 139 Los Angeles San Clemente Island. Eagle Canyon Comment
  RSA678885  Triteleia clementina Mark A. Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 156 Los Angeles San Clemente Island. SHOBA (Shore bombardment area). East side of island. 1st canyon South of Bryce Cyn. 213 Comment
  RSA678886  Triteleia clementina Mark A. Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 155 Los Angeles San Clemente Island. SHOBA (Shore Bombardment Area). Willy's steep canyon. East of road to Willy's at narrow pt. 50' North of turn around. Pyramid head. 183 Comment
  RSA678887  Sibara filifolia Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 154 Los Angeles San Clemente Island. SHOBA (Shore Bombardment Area) S. of buds. West of Willies Saddle cf. ridge. 171 Comment
  RSA678888  Gilia nevinii Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark 1996-4-19 151 Los Angeles San Clemente Island. North Head, top of slopes between 1st and 2nd terrace point at N.H. rock. 12 Comment
  RSA678889  Malacothrix foliosa Mark A. Elvin, Dylan Hannon, Gery Allan, Curtis Clark 1996-4-19 149 Los Angeles San Clemente Island. North Head, top of slopes between 1st and 2nd terrace point at N.H. rock. 12 Comment
  RSA678891  Eriophyllum nevinii Mark A. Elvin, Dylan Hannon, Gery Allan, Curtis Clark 1996-4-19 147 Los Angeles San Clemente Island. 30 Comment
  RSA678892  Senecio lyonii Mark A. Elvin, Dylan Hannon, Gery Allan, Curtis Clark 1996-4-19 146 Los Angeles San Clemente Island 9 Comment
  RSA678896  Agrostis pallens Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 162 Los Angeles Channel Islands; San Clemente Island. 305 Comment
  RSA679284  Ericameria cuneata Mark A. Elvin, Anne Marie Ruff 1996-8-1 307 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 3.9 mi from gate. Cliff on roadcut. Comment
  RSA679285  Clematis lasiantha Mark A. Elvin, Anne Marie Ruff 1996-8-1 306 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. Comment
  RSA679286  Senecio flaccidus var. douglasii Mark A. Elvin, Anne Marie Ruff 1996-8-1 304 Los Angeles San Gabriel Mountains. Angeles National Forest. Glendora Ridge Road. N side of road W of 90 degree curve on road. Road mile 7.75. Comment
  RSA679287  Lotus crassifolius var. crassifolius Mark Elvin, Anne Marie Ruff 1996-8-1 303 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 4.2 mi from gate. Both sides of road. Comment
  RSA679288  Ceanothus leucodermis Mark A. Elvin, Anne Marie Ruff 1996-8-1 302 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 4.2 mi from gate. Both sides of road. Comment
  RSA679289  Epilobium ciliatum subsp. ciliatum Mark A. Elvin, Anne Marie Ruff 1996-8-1 299 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 3.9 mi from gate at E end of road. Comment
  RSA679290  Boykinia rotundifolia Mark Elvin, Anne Marie Ruff 1996-8-1 298 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 1.8 mi from gate. South side. Comment
  RSA679291  Eriogonum saxatile Mark A. Elvin, Anne Marie Ruff 1996-8-1 297 Los Angeles San Gabriel Mts. Angeles National Forest. Glendora Ridge Road. 1.5mi from gate. Along road cuts on N side. Comment
  RSA679292  Mentzelia laevicaulis Mark A. Elvin, Anne Marie Ruff 1996-8-1 296 -C Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 1.5mi from gate. Along road cuts on N side. Comment
  RSA679293  Mentzelia laevicaulis Mark A. Elvin, Anne Marie Ruff 1996-8-1 296 -A Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 1.5mi from gate. Along road cuts on N side. Comment
  RSA679294  Mentzelia laevicaulis Mark A. Elvin, Anne Marie Ruff 1996-8-1 296 -B Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 1.5mi from gate. Along road cuts on N side. Comment
  RSA679295  Dudleya cymosa subsp. cymosa Mark Elvin, Anne Marie Ruff 1996-8-1 295 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road (gate). South side of road on curve. Comment
  RSA679295B  Dudleya cymosa subsp. pumila Mark Elvin, Anne Marie Ruff 1996-8-1 295 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road (gate). South side of road on curve. Comment
  RSA679303  Crossosoma californicum Mark Elvin, Michael Wall 1997-3-18 378 Los Angeles Santa Catalina Island. Cape Canyon Ridge. W side of canyon. With Rock outcrop 200' above valley floor. Approx. 1/2 mile south of well house along Cape Canyon Road. Comment
  RSA679304  Solanum wallacei Mark A. Elvin, Sarah Crockett 1997-3-17 377 Los Angeles Santa Catalina Island. Along Cape Canyon Road. On E side at cliff. Where creek comes up to Road. Comment
  RSA679305  Ceanothus megacarpus var. insularis Mark A. Elvin, Sarah Crockett 1997-3-17 376 Los Angeles Santa Catalina Island, Cape Canyon Comment
  RSA679306  Comarostaphylis diversifolia subsp. planifolia Mark Elvin, Sarah Crockett 1997-3-17 374 Los Angeles Santa Catalina Island, Cape Canyon. W side of canyon. Comment
  RSA679308  Calochortus catalinae Mark Elvin, Janet Takera, Mary Meyer, Shelia Shyler, Sarah Crockett 1997-3-16 368 Los Angeles Santa Catalina Island. Ridge top running due west of jct Divide Rd and road to Avalon. Comment
  RSA679309  Quercus pacifica Mark A. Elvin, Janet Takera, Mary Meyer, Shelia Shyler, Sarah Crockett 1997-3-16 367 Los Angeles Santa Catalina Island. At curve in road past garden to Divide Rd. Comment
  RSA679310  Piperia cooperi Mark Elvin, Janet Takera, Mary Meyer, Shelia Shyler, Sarah Crockett 1997-3-16 369 Los Angeles Santa Catalina Island. Hermit Gulch Trail. ~ 1/3 way down on up side of trail. Comment
  RSA679311  Harpagonella palmeri Mark Elvin, Janet Takera, Mary Meyer, Shelia Shyler, Sarah Crockett 1997-3-16 366 Los Angeles Santa Catalina Island. At curve in road past garden to Divide Rd. Comment
  RSA679312  Crossosoma californicum Mark Elvin, Sarah Crockett 1997-3-17 375 Los Angeles Santa Catalina Island, Cape Canyon, 2/3 up canyon in sight of Black Jack Mtn. just before road begins switchbacks. Comment
  RSA679344  Castilleja applegatei subsp. martinii Mark A. Elvin, Anne Marie Ruff 1996-8-1 293 Los Angeles San Gabriel Mtns. Angeles National Forest. South side of Glendora Ridge Road (gate). Comment
  RSA680059  Polystichum imbricans subsp. imbricans Mark Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 357 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Rd. 1.8 mi W of gate at Mt. Baldy Road. Comment
  RSA680060  Galium angustifolium subsp. angustifolium Mark A. Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 356 Los Angeles Angeles National Forest. San Gabriel Mountains. Glendora Ridge Road. 1.8 mi W of gate. Comment
  RSA680061  Epilobium canum subsp. latifolium Mark A. Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 355 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. Mile 10.2 Comment
  RSA680062  Drymocallis glandulosa var. glandulosa Mark A. Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 354 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 1.8 mi W of gate. Comment
  RSA680063  Solidago californica Mark A. Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 353 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 1.8 mi W of gate. Comment
  RSA680064  Galium angustifolium subsp. nudicaule Mark A. Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 351 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 1.8 mi W of gate. Comment
  RSA680065  Brickellia californica Mark Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 350 Los Angeles Angeles National Forest. Glendora Ridge Road. On road cuts. 1.55 mi W of gate, just W of Cow Canyon Saddle. Comment
  RSA680066  Galvezia speciosa Mark A. Elvin, Michael Wall, Jennifer Stone 1996-8-8 327 Los Angeles San Clemente Island. Lemon Tank Canyon. N side at/in dump. 30' below canyon ridge. Comment
  RSA680067  Abronia maritima Mark A. Elvin, Michael Wall, Jennifer Stone 1996-8-8 324 Los Angeles San Clemente Island. West dunes along road to S end of dunes next to ocean. Comment
  RSA680068  Camissonia guadalupensis subsp. clementina Mark A. Elvin, Michael Wall, Jennifer Stone 1996-8-8 323 Los Angeles San Clemente Island. Edge of Dune ridge in ocean in scrub area. 30 Comment
  RSA680069  Atriplex leucophylla Mark Elvin, Michael Wall, Jennifer Stone 1996-8-8 322 Los Angeles San Clemente Island. Edge of Dune ridge in ocean in scrub area. 30 Comment
  RSA680070  Ambrosia chamissonis Mark Elvin, Michael Wall, Jennifer Stone 1996-8-8 321 Los Angeles San Clemente Island. West Dunes along road to S end dunes. 50m from beach, behind rock jolting up at beach; in shrub dune interface zone. Comment
  RSA680071  Cryptantha traskiae Mark Elvin, Michael Wall, Jennifer Stone 1996-8-7 319 Los Angeles San Clemente Island. North head. NW of Bud's across from Bird Rock on 1st and 2nd terraces and slope between terraces along N shore within 100m of ocean. 9 Comment
  RSA680073  Amblyopappus pusillus Mark Elvin, Michael Wall, Jennifer Stone 1996-8-7 317 Los Angeles San Clemente Island. North head. NW of Bud's across from Bird Rock on 1st and 2nd terraces and slope between terraces along N shore within 100m of ocean. 9 Comment
  RSA680074  Lasthenia gracilis Mark Elvin, Michael Wall, Jennifer Stone 1996-8-7 311 Los Angeles San Clemente Island. SHOBA. South side top of Conchulagua Canyon. 50m S of canyon floor on ridge/mesa. Comment
  RSA680075  Lyonothamnus floribundus Mark A. Elvin, Michael Wall, Jennifer Stone 1996-8-7 310 Los Angeles San Clemente Island. Conchulagua Canyon. [Canchalagua] In canyon floor. Shelf under a 25' cliff. [Longitude should be 118 deg. instead of 116 deg.] 213 Comment
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Mar 28 2014
  RSA680076  Galium catalinense subsp. acrispum Mark A. Elvin, Michael Wall, Jennifer Stone 1996-8-7 309 Los Angeles San Clemente Island. Conchulagua Canyon. [Canchalagua] In canyon floor. Shelf under a 25' cliff. [Longitude should be 118 deg. instead of 116 deg.] 213 Comment
  RSA680077  Prunus ilicifolia subsp. lyonii Mark A. Elvin, Michael Wall, Jennifer Stone 1996-8-7 308 Los Angeles San Clemente Island. Conchulagua Canyon. In canyon floor. 305 Comment
  RSA680078  Lepechinia fragrans Mark A. Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 349 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Rd. 7.3mi W of gate at Mt. Baldy Road. S side road on bank. Comment
  RSA680079  Rhamnus californica subsp. californica Mark A. Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 360 Los Angeles San Gabriel Mtns. Claremont. ~ 0.6mi W of Mt. Baldy Rd. in Evey Canyon. Comment
  RSA680080  Mimulus aurantiacus Mark A. Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 359 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Rd. 7.3mi W of gate at Mt. Baldy Road. S side road on bank. Comment
  RSA680081  Mimulus aurantiacus Mark A. Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 358 Los Angeles San Gabriel Mtns. Angeles National Forest. 2.7 mi from gate at Mt. Baldy Rd. Comment
  RSA709376  Eriogonum cithariforme var. agninum Mark A. Elvin 2003-5-25 2927 -A Los Angeles NE end of Santa Susana Mtns.: Newhall Ranch, Salt Creek, mesa in middle of Salt Creek drainage. 595 Comment
  RSA709601  Lupinus microcarpus var. microcarpus Mark Elvin, Cathleen Weigand 2003-4-8 2455 Los Angeles Santa Clarita Valley: Newhall Ranch, flats S of confluence of Hasley Canyon with Castaic Creek. 297 Comment
  RSA713822  Lagophylla ramosissima Mark Elvin 2003-6-12 2946 Los Angeles Santa Clarita Valley: Newhall Ranch, S of Magic Mountain Amusement Park, W of The Old Road. 366 Comment
  RSA713823  Baccharis sarothroides Mark Elvin 2003-6-12 2947 Los Angeles Santa Clarita Valley: Newhall Ranch, S of Magic Mountain Amusement Park, W of The Old Road. 366 Comment
  RSA713825  Hemizonia fasciculata Mark Elvin 2003-6-12 2944 Los Angeles Santa Clarita Valley: Newhall Ranch, S side of Potrero Canyon, S of Potrero Mesa. 335 Comment
  RSA713826  Dudleya lanceolata Mark Elvin 2003-6-12 2942 Los Angeles Santa Clarita Valley: Newhall Ranch, S side of Potrero Canyon, S of Potrero Mesa. 335 Comment
  RSA714796  Stanleya pinnata Mark Elvin 2003-4-9 2468 Los Angeles Santa Clarita Valley: Newhall Ranch Commerce Center, canyon N of SR 126 from Grapevine Mesa . 335 Comment
  RSA714802  Trifolium albopurpureum Mark A. Elvin, Cathleen Weigand 2003-4-8 2454 Los Angeles Castaic Valley: Confluence of Hasley Canyon with Castaic Creek, ridge N of the confluence. 351 Comment
  RSA714980  Chorizanthe parryi var. fernandina Mark A. Elvin, Vipul Joshi, Tricia Wotipka 2003-6-11 2940 Los Angeles N end of Santa Susana Mtns.: Newhall Ranch, ridge ca 900 m SW of 'Airport Mesa' 366 Comment
  RSA725897  Antirrhinum multiflorum Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2927 Los Angeles NE end of Santa Susana Mtns.: Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  RSA725898  Dryopteris arguta Mark Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2926 Los Angeles NE end of Santa Susana Mtns.: Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  RSA725899  Clarkia purpurea subsp. viminea Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2922 Los Angeles NE end of Santa Susana Mtns.: Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  RSA725900  Eschscholzia californica Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2920 Los Angeles NE end of Santa Susana Mtns.: Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  RSA725927  Eriogonum fasciculatum var. foliolosum Mark A. Elvin 2003-5-25 2927 -B Los Angeles NE end of Santa Susana Mtns.: Newhall Ranch, Salt Creek, mesa in middle of Salt Creek drainage. 595 Comment
  RSA726192  Chorizanthe parryi Mark A. Elvin 2003-6-19 2948 Los Angeles Western Tansverse Range: hills west of San Martinez Grande Canyon and north of CA Hwy 126, Newhall Ranch 366 Comment
  RSA732529  Eriogonum gracile var. gracile Mark A. Elvin, K. Marsden 2003-8-8 2970 -A Los Angeles Santa Clarita Valley: Newhall Ranch, Potrero Canyon SW of the junction of Potrero Creek and the Santa Clara River. 305 Comment
  RSA750962  Eriogonum angulosum Mark A. Elvin 2003-6-19 2949 Los Angeles hills west of San Martinez Grande Canyon and north of Calif. Hwy 126, Newhall Ranch 366 Comment
  RSA771486  Monardella hypoleuca subsp. hypoleuca Mark A. Elvin, Adam Clause 2008-5-30 5972 Los Angeles Santa Ynez Canyon, c. 300 m north of Ver de La Montura Rd. Comment
  RSA785789  Malacothamnus clementinus Mark A. Elvin, Stone and Wall 1996-8-8 326 Los Angeles San Clemente Island, Lemon Tank Cyn, N side in dump site, ca 30 ft below canyon rim. Comment
  RSA788770  Berberis nevinii Mark Elvin, M. Wall 1997-3-5 362 Los Angeles San Gabriel Mountains, off Mount Baldy Road 0.3 miles S from intersection w/ [Padua Avenue], 50 m off road. Sandy alluvial wash. 534 Comment
  RSA788771  Ribes cereum Mark A. Elvin, M. Wall 1997-3-5 363 Los Angeles San Gabriel Mountains, off Mount Baldy Road 0.3 miles S from intersection w/ [Padua Avenue], 50 m off road. Sandy alluvial wash. 534 Comment
  RSA788772  Ribes indecorum Mark A. Elvin, M. Wall 1997-3-5 364 Los Angeles San Gabriel Mountains, off Mount Baldy Road 0.3 miles S from intersection w/ [Padua Avenue], 200 m off road. Sandy alluvial wash. Comment
  RSA788773  Marah macrocarpa Mark Elvin, Michael Wall 1997-3-5 365 Los Angeles San Gabriel Mountains, off Mount Baldy Road 0.3 miles S from intersection w/ [Padua Avenue], 50 m off road. Sandy alluvial wash. 534 Comment
  RSA788774  Muhlenbergia microsperma Mark Elvin, Sara L. Crockett 1997-3-17 372 Los Angeles Channel Islands; Santa Catalina Island: Cape Canyon. W side of Canyon. 1.25m NE middle Ranch on Cape Canyon Rd. Comment
  RSA788775  Lasthenia californica Mark Elvin, Sara L. Crockett 1997-3-17 371 Los Angeles Channel Islands; Santa Catalina Island: Cape Canyon. W side of Canyon. 1.25m NE middle Ranch on Cape Canyon Rd. 335 Comment
  RSA791801  Gilia angelensis Mark Elvin 2003-4-22 2529 Los Angeles Western Transverse Range: Newhall Ranch, bee site on open former oil well pad just east of Grapevine Mesa, south of Santa Clara River and highway 126, c. 4 miles east of Ventura county line. 314 Comment
  RSA791802  Chorizanthe parryi var. fernandina Mark A. Elvin, Cathleen Weigand 2003-4-8 2453 Los Angeles Santa Clarita Valley: Newhall Ranch Commerce Center, confluence of Hasley Canyon and Castaic Creek, north of highway 126. 319 Comment
  RSA791803  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-6-30 2961 Los Angeles Western Transverse Range; Santa Clarita Valley Area: Newhall Ranch, west side of Grapevine Mesa, 4 km southwest (216 degrees) of intersection of I-5 Freeway and Highway 126. 366 Comment
  RSA791804  Calochortus Mark Elvin, Margie P. Elvin, Katie Elvin, Andy Elvin 2003-7-1 2964 Los Angeles Western Transverse Range; Santa Susana Mountains: crest of the mountains at head of Salt Creek, 6.5 km southwest of Stevenson Ranch. 927 Comment
  SBBG119452  Ceanothus cuneatus M. A. Elvin, C. Weigand 2003-4-8 2458 Los Angeles flats S of confluence of Hasley Cyn with Castaic Crk, Newhall Ranch 297 Comment
  SBBG119985  Chorizanthe parryi var. fernandina M. A. Elvin 2003-6-11 2940 Los Angeles ridge ca. 900 m SW of Airport Mesa, Newhall Ranch, N end of Santa Susana Mtns 366 Comment
  SBBG126066  Monardella hypoleuca subsp. hypoleuca M. A. Elvin with A. Clause 2008-5-30 5972 Los Angeles Santa Ynez Cyn, ca. 300 m N of Verde de la Montura Rd; Santa Monica Mtns Comment
  SBBG127970  Rhus ovata M. A. Elvin, T. Sagar 2013-5-31 7152 Los Angeles Malibu Cyn Rd S of tunnel, Santa Monica Mtns 168 Comment
  SBBG127989  Wigandia urens M. A. Elvin 2012-7-18 Los Angeles N side of Sunset Blvd, ca. 300 m N of 1405, across from S Thurston Ave; Westwood 159 Comment
  SBBG128649  Chorizanthe parryi var. fernandina M. A. Elvin 2003-6-30 2961 Los Angeles Newhall Ranch, W side of Grapevine Mesa, 4 km SW (216 deg ) of intersection of I-5 Fwy and Hwy 126 366 Comment
  SBBG128650  Chorizanthe parryi var. fernandina M. A. Elvin, C. Weigand 2003-4-8 2453 Los Angeles Newhall Ranch Commerce Center, confluence of Hasley Cyn and Castaic Crk, N of Hwy 126 319 Comment
  SBBG128665  Chorizanthe parryi var. fernandina M. A. Elvin 2003-4-24 2527 Los Angeles Vallencia, Newhall Ranch , entrance to Magic Mtn Theme Park, survey area 62 366 Comment
  SBBG132095  Scrophularia villosa M. Elvin, D. Hannon, G. Allan, C. Clark, S. Burckhalter 1996-4-20 168 Los Angeles Stone field station just below balcony Comment
  SBBG35221  Chorizanthe parryi var. fernandina M. A. Elvin 2003-6-19 2948 Los Angeles hills W of San Martinez Grande Cyn, N of CA St Hwy 126, Newhall Ranch 366 Comment
  SD136135  Castilleja grisea Mark Elvin, Gery Allan 1995-5-21 18 Los Angeles San Clemente Island: W side of island, in S branch of Horse Beach Canyon on lower terrace Comment
  SD136173  Malacothamnus clementinus Mark Elvin, Gery Allan 1995-5-21 17 Los Angeles San Clemente Island; west side of island on terrace at edge of upper end south fork of Horse Beach Canyon. Comment
  SD136283  Brodiaea kinkiensis Mark A. Elvin, Gery Allan, Tim Ross 1995-5-21 20 Los Angeles San Clemente Island, west side of island on upper terrace, Ao mile from Ridge Road to Stone Field Station. 244 Comment
  SD178177  Sisymbrium altissimum Mark A. Elvin, Cathleen Weigand 2003-5-22 2895 Los Angeles Santa Susana Mtns.: crest of mountains at head of Salt Canyon, Newhall Ranch. 915 Comment
  SD178201  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-6-19 2948 Los Angeles Western Transverse Range: hills west of San Martinez Grande Canyon and north of CA Hwy 126, Newhall Ranch. On open flat. 366 Comment
  SD178264  Eriogonum cithariforme var. agninum Mark A. Elvin 2003-5-25 2927 A Los Angeles Northeast end of Santa Susana Mountains: Newhall Ranch, Salt Creek, mesa in middle of Salt Creek drainage. 594 Comment
  SD186074  Deinandra fasciculata Mark A. Elvin 2003-6-12 2944 Los Angeles Newhall Ranch, south of magic Moountain Amusement Park, west of The Old Road. 366 Comment
  SD186210  Lupinus microcarpus var. microcarpus Mark A. Elvin, Cathleen Weigand 2003-4-8 2455 Los Angeles Newhall Ranch, flats south of confluence of Hasley Canyon with Castaic Creek. 296 Comment
  SD186287  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-6-11 2940 Los Angeles N end of Santa Susana Mtns.: Newhall Ranch, ridge ca 900 m SW of Airport Mesa 111 Comment
  SD197874  Eriogonum angulosum Mark A. Elvin 2003-6-19 2949 Los Angeles Hills west of San Martinez Grande Canyon and north of CA Hjighway 126, Newhall Ranch. 366 Comment
  SD232338  Scrophularia villosa Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 168 Los Angeles Channel Islands; San Clemente Island: Stone field station just below balcony. Comment
  SD234490  Eriogonum baileyi var. baileyi Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-14 3003 Los Angeles Santa Carita Valley: Newhall Ranch, mouth of Castaic Creek, S of SR 126. 289 Comment
  SD234496  Eriogonum gracile var. gracile Mark A. Elvin, Kim Marsden 2003-8-8 2970 A Los Angeles Santa Clarita Valley: Newhall Ranch, Potrero Canyon SW of the junction of Potrero Creek and the Santa Clara river. 305 Comment
  SD234723  Dryopteris arguta Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2926 Los Angeles NE end of Santa Susana Mtns.: Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  SD239700  Atriplex suberecta Mark A. Elvin, M. S. Enright 2002-7-22 2110 Los Angeles Wesetern Transverse Range: Newhall Ranch, Salt Creek (Val Verde 7.5'Q) 289 Comment
  SD239800  Monardella hypoleuca subsp. hypoleuca Mark A. Elvin, Adam Clause 2008-5-30 5972 Los Angeles Transverse Ranges: Santa Monica Mountains: Santa Ynez Canyon, ca. 300 m N of Verde De La Montura Road Comment
  SD240793  Calochortus fimbriatus Mark A. Elvin, Margie P. Elvin, K. Elvin, A. Elvin 2003-7-1 2964 Los Angeles Western Transverse Range; Santa Susana Mountains: crest of the mountains at head of Salt Creek, 6.5 km SW of Stevenson Ranch (Simi Valley East 7.5'Q) 926 Comment
  SD241127  Gilia angelensis Mark A. Elvin 2003-4-22 2529 Los Angeles Western Transverse Range: Newhall Ranch, bee site on open former oil well pad just east of Grapevine Mesa, S. of Santa Clara River and Hwy 126, c. 4 mi east of Ventura Co. line (Val Verde 7.5'Q) 341 Comment
  SD241134  Navarretia atractyloides Mark A. Elvin 2003-1-30 2960 Los Angeles Western Transverse Range; Santa Clarita Valley Area: Newall Ranch, west side of Grapevine Mesa, 4 km SW (216a^z) of intersection of I-5 Fwy and Hwy 126 (Val Verde 7.5'Q) 366 Comment
  SD241136  Chorizanthe parryi var. fernandina Mark A. Elvin, Cathleen Weigand 2003-4-8 2453 Los Angeles Santa Clarita Valley: Newhall Ranch Commerce Center, confluence of Hasley Canyon and Castaic Creek, N of Hwy 126 (Newhall 7.5'Q) 319 Comment
  SD241137  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-6-30 2961 Los Angeles Western Transverse Range; Santa Clarita Valley Area: Newhall Ranch, west side of Grapevine Mesa 4 km SW (216a^z) of intersection of I-5 Fwy and Hwy 126 (Val Verde 7.5'Q) 366 Comment
  SD241722  Lomatium dasycarpum Mark A. Elvin 2003-5-1 2497 Los Angeles Santa Clarita Valley: Newhall Ranch, Castaic Mesas, c. 1.5 km east of Castaic Lagoon, in Charlie Canyon, survey area 69 (Newhall 7.5'Q) 395 Comment
  SD241916  Eriastrum sapphirinum subsp. dasyanthum Mark A. Elvin 2003-5-1 2495 Los Angeles Santa Clarita Valley: Newhall Ranch, Castaic Mesas, c. 1.5 km east of Castaic Lagoon in Charlie Canyon, survey area 69 (Newhall 7.5'Q) 395 Comment
  SD241924  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-4-24 2527 Los Angeles Santa Clara River Valley: Valencia, Newhall Ranch, entrance to Magic Mountain Theme Park, survey area 62 (Newhall 7.5'Q) 477 Comment
  SD249144  Helianthus inexpectatus Mark Elvin 2014-9-12 Los Angeles Western Transverse Range, Newhall Ranch, large natural spring at north foot of Airport Mesa 0.75 mile SW of Castaic Junction, above confluence of Castaic Creek with Santa Clara River. 305 Comment
  SD254579  Thysanocarpus conchuliferus Mark A. Elvin, Tarja Sagar 2009-3-27 6215 Los Angeles Transverse Ranges: Santa Monica Mountains: Malibu Creek State Park, Lost Cabin Trail near E end of trail, ca. 150 m W of cabin site. 244 Comment
  SD254580  Thysanocarpus curvipes Mark A. Elvin, Tarja Sagar 2009-3-27 6217 Los Angeles Transverse Ranges: Santa Monica Mountains: Malibu Creek State Park, Lost Cabin Trail near E end of trail, ca. 150 m W of cabin site. 244 Comment
  SD254582  Thysanocarpus curvipes Mark A. Elvin, Tarja Sagar 2009-3-27 6214 Los Angeles Transverse Ranges: Santa Monica Mountains: Semler Open Space, along Pentachaeta Trail; S of Lindero Canyon Drive and Triunfo Canyon Road. 373 Comment
  SD254583  Thysanocarpus laciniatus Mark A. Elvin, Tarja Sagar 2009-3-27 6213 Los Angeles Transverse Ranges: Santa Monica Mountains: Semler Open Space, along Pentachaeta Trail; S of Lindero Canyon Drive and Triunfo Canyon Road. 373 Comment
  SEINET1004565  Eriogonum angulosum Mark A. Elvin, Kim Marsden 2003-1 297 -B Los Angeles Santa Clarita Valley:Newhall Ranch, SW face of Potrero Mesa. 305 Comment
  SEINET1004569  Eriogonum baileyi var. baileyi Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-1 3003 Los Angeles Santa Clarita Valley: Newhall Ranch, mouth of Castaic Creek, S of SR 126. 290 Comment
  SEINET11261878  Achyrachaena mollis Mark A. Elvin, Joseph G. Decruyenaere 2003-5-8 2719 Los Angeles Western Transverse Range; Santa Susana Mountains: Newhall Ranch, Potrero Canyon, beside road on south side of canyon.; 0 305 Comment
  SEINET11261911  Chorizanthe parryi Mark A. Elvin 2003-6-30 2961 Los Angeles Western Transverse Range; Santa Clarita Valley area: Newhall Ranch, west side of Grapevine Mesa, 4 km SW (2161/4) of intersection of I-5 Fwy and Hwy 126 (Val Verde 7.5' Q.); 0 366 Comment
  SEINET11261918  Gilia angelensis Mark A. Elvin 2003-4-22 2529 Los Angeles Western Transverse Range: Newhall Ranch, bee site on open former oil well pad just east of Grapevine Mesa, S of Santa Clara River and Hwy 126, c. 4 mi east of Ventura Co. line. ( Val Verde 7.5' Q.); 0 314 Comment
  SEINET1869751  Cryptantha microstachys Mark A. Elvin, Cathleen Wigand 2003-1 2464 Los Angeles Santa Clarita Valley: Newhall Ranch Commerce Center, ridge between Hasley and Castaic Creeks. 351 Comment
  SEINET1906981  Chorizanthe parryi var. fernandina Mark A. Elvin, Vipul Joshi, Tricia Wotipka 2003-1 2940 Los Angeles N end of Santa Susana Mtns.: Newhall Ranch, ridge ca 900 m SW of 'Airport Mesa 366 Comment
  SEINET2444432  Allophyllum divaricatum Mark A. Elvin, Cathleen Weigand 2003-5-22 2894 Los Angeles Santa Susana Mtns. Crest of mountains at head of Salt Canyon, Newhall Ranch. 915 Comment
  SEINET251662 Image available Bromus grandis Mark A. Elvin, Cathleen Weigand 2003-5-22 2908 Los Angeles Santa Susana Mtns.: crest fo mountains at head of Salt Canyon Mewhall Ranch (Simi Valley East 7.5' Q.:) 914 Comment
  SEINET3246222  Eriogonum angulosum Mark A. Elvin 2003-1 2949 Los Angeles Western Transverse Range: hills west of San Martinez Grande Canyon and north of CA Hwy 126, Newhall Ranch. 366 Comment
  SEINET3828568  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-1 2961 Los Angeles Western Transverse Range; Santa Clarita Valley Area: Newhall Ranch, west side of Grapevine Mesa, 4km SW (216 degrees) of intersection of I-5 Fwy and Hwy 126 (Val Verde 7.5') 366 Comment
  SEINET7856441  Eriogonum gracile var. gracile M. A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-14 3002 Los Angeles Santa Clarita Valley; Newhall Ranch, mouth of Castaic Creek, south of SR 126 290 Comment
  SEINET7856448  Eriogonum gracile var. gracile M. A. Elvin 2003-8-13 2985 Los Angeles Santa Clarita Valley; Newhall Ranch, Santa Clara River at the mouth of Long Canyon. 274 Comment
  SEINET7862101  Eriogonum gracile var. gracile M. A. Elvin 2003-5-25 2927 A Los Angeles NE end of Santa Susana Mtns.; [Newhall Ranch, Salt Creek, mesa in middle of Salt Creek drainage.] 595 Comment
  UC1792811  Chorizanthe parryi var. fernandina Mark A. Elvin, Vipul Joshi, Tricia Wotipka 2003-6-11 2940 Los Angeles N end of Santa Susana Mtns.: Newhall Ranch, ridge ca 900 m SW of 'Airport Mesa' 365 Comment
  UC1929360  Sedum spathulifolium Mark Elvin, Anne Marie Ruff 1996-8-1 301 Los Angeles Transverse Ranges; San Gabriel Mountains region: San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 3.9 mi from gate. Cliff on roadcut. Steep 90 degree crumbly sandstone. Comment
  UC1929379  Ceanothus leucodermis Mark Elvin, Anne Marie Ruff 1996-8-1 302 Los Angeles Transverse Ranges; San Gabriel Mountains region: San Gabriel Mountains. Angeles National Forest. Glendora Ridge Road. 4.2 mi from gate. Both sides of road. Flat ridge and down north and south faces to canyon bottom. Comment
  UC1929457  Astragalus miguelensis Mark Elvin, Orlando Mistretta 1996-3-24 120 Los Angeles Channel Islands; San Clemente Island: W On dunes. Comment
  UC1929459  Ribes malvaceum var. malvaceum Mark Elvin, Orlando Mistretta 1996-3-24 135 Los Angeles Channel Islands; San Clemente Island: Eagle Canyon. Comment
  UC1929463  Eriogonum Mark Elvin, Orlando Mistretta 1996-3-24 139 Los Angeles Channel Islands; San Clemente Island: Eagle Canyon. Comment
  UC1929500  Crossosoma californicum Mark Elvin with Michael Wall 1997-3-18 378 Los Angeles Channel Island; Santa Catalina Island: Cape Canyon Ridge. W side of canyon. With Rock outcrop 200' above valley floor. ~ 1/2 mile south of well house along Cape Canyon Road. Comment
  UC1929501  Lyonothamnus floribundus Mark Elvin, Michael Wall, Jennifer Stone 1996-8-7 310 Los Angeles Channel Islands; San Clemente Island: Conchulagua Canyon. In canyon floor. Shelf under a 25' cliff. Comment
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Feb 6 2018
  UC1929502  Cryptantha traskiae Mark Elvin, Michael Wall, Jennifer Stone 1996-8-7 319 Los Angeles Channel Islands; San Clemente Island: North head. NW of Bud's across from Bird Rock on 1st and 2nd terraces along N shore within 100m of ocean. Comment
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Feb 6 2018
  UC1929503  Ambrosia chamissonis Mark Elvin, Michael Wall, Jennifer Stone 1996-8-8 321 Los Angeles Channel Islands; San Clemente Island: West dunes along road to S end dunes. 50m from beach, behind rock jolting up at beach; in shrub dune interface zone. Comment
  UC1929504  Abronia maritima Mark Elvin, Michael Wall, Jennifer Stone 1996-8-8 324 Los Angeles Channel Islands; San Clemente Island: West dunes along road to S end of dunes next to ocean. Comment
  UC1929505  Mimulus aurantiacus var. pubescens Mark Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 358 Los Angeles Transverse Ranges; San Gabriel Mountains Region: San Gabriel Mountains, Angeles National Forest, 2.7 mi from gate at Mt. Baldy Road. Comment
  UC1929506  Mimulus aurantiacus var. pubescens Mark Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 359 Los Angeles Transverse Ranges; San Gabriel Mountains region: San Gabriel Mtns. Angeles National Forest. Glendora Ridge Rd. 7.3mi W of gate at Mt. Baldy Road. S side road on bank. Comment
  UC1929606  Calochortus catalinae Mark Elvin, Janet Takera, Mary Meyer, Shelia Shyler, Sarah Crockett 1997-3-16 368 Los Angeles Channel Island; Santa Catalina Island: Santa Catalina Island. Ridge top running due west of jct Divide Rd and road to Avalon. Comment
  UC1929607  Comarostaphylis diversifolia subsp. planifolia Mark Elvin, Sarah Crockett 1997-3-17 374 Los Angeles Channel Island; Santa Catalina Island: Cape Canyon. W side of canyon. Comment
  UC1929608  Ceanothus megacarpus var. insularis Mark Elvin, Sarah Crockett 1997-3-17 376 Los Angeles Channel Island; Santa Catalina Island: N & mesic E. slopes. Comment
  UC1929609  Solanum wallacei Mark Elvin, Sarah Crockett 1997-3-17 377 Los Angeles Channel Island; Santa Catalina Island: Alone Cape Canyon Ridge. On E side at cliff. Where creek comes up to Road. Comment
  UC1929628  Lepechinia fragrans Mark Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 349 Los Angeles Transverse Ranges; San Gabriel Mountains region: San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 7.3 mi W of gate at Mt. Baldy Road. S side road on bank. Comment
  UC1929629  Solidago velutina subsp. californica Mark Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 353 Los Angeles Transverse Ranges; San Gabriel Mountains region: San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 1.8 mi w of gate. Comment
  UC1929651  Prunus ilicifolia subsp. lyonii Mark Elvin, Michael Wall, Jennifer Stone 1996-8-7 308 Los Angeles Channel Islands; San Clemente Island: Conchulagua Canyon. In canyon floor. Comment
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Feb 6 2018
  UC1929652  Epilobium canum subsp. latifolium Mark Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 355 Los Angeles Transverse Ranges; San Gabriel Mountains region: San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. Mile 10.2. Comment
  UC1929748  Malacothamnus clementinus Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 169 Los Angeles Channel Islands; San Clemente Island: Lemon Tank. Comment
  UC1929750  Malacothrix foliosa Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark 1996-4-19 149 Los Angeles Channel Islands; San Clemente Island: North Head, top of slopes between 1st and 2nd terrace point at N.H. rock. Comment
  UC1929751  Constancea nevinii Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark 1996-4-19 147 Los Angeles Channel Islands; San Clemente Island: Top of cliffs of steepish bluffs. Comment
  UC1929919  Rhamnus californica Mark Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 360 Los Angeles Transverse Ranges; San Gabriel Mountains region: San Gabriel Mtns. Claremont. ~ 0.6mi W of Mt. Baldy Rd. in Evey Canyon. Comment
  UC1929997  Malva assurgentiflora Mark Elvin, Orlando Mistretta 1996-3-22 116 Los Angeles Channel Islands; San Clemente Island: San Clemente Island. W Coastal strand. Comment
  UC1929998  Gambelia speciosa Mark Elvin, Orlando Mistretta 1996-3-24 130 Los Angeles Channel Islands; San Clemente Island: Eagle Canyon. Comment
  UC1929999  Madia Mark Elvin, Orlando Mistretta 1996-3-24 129 A Los Angeles Channel Islands; San Clemente Island: Eagle Canyon. Comment
  UC1930047  Senecio lyonii Mark Elvin, Orlando Mistretta 1996-3-24 123 Los Angeles Channel Islands; San Clemente Island: Comment
  UC1930126  Brickellia californica Mark Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 350 Los Angeles Transverse Ranges; San Gabriel Mountains region: Angeles National Forest. Glendora Ridge Road. On road cuts. 1.55 mi W of gate, just W of Cow Canyon Saddle. Comment
  UC1930135  Quercus pacifica Mark Elvin, Janet Takera, Mary Meyer, Shelia Shyler, Sarah Crockett 1997-3-16 367 Los Angeles Channel Island; Santa Catalina Island: Santa Catalina island. In exposed open area at curve in road past garden to Divide Rd. Comment
  UC1930149  Polystichum imbricans subsp. curtum Mark Elvin, Michael Wall, Scott Koukol, Sylvia Engstrom 1996-9-11 357 Los Angeles Transverse Ranges; San Gabriel Mountains region: San Gabriel Mtns. Angeles National Forest. Glendora Ridge Rd. 1.8 mi W of gate at Mt. Baldy Road. Comment
  UC1930205  Senecio flaccidus var. douglasii Mark Elvin, Anne Marie Ruff 1996-8-1 304 Los Angeles Transverse Ranges; San Gabriel Mountains region: San Gabriel Mountains. Angeles National Forest. Glendora Ridge Road. N side of road W of 90 degree curve on road. Road mile 7.75. Comment
  UC1930206  Boykinia rotundifolia Mark Elvin, Anne Marie Ruff 1996-8-1 298 Los Angeles Transverse Ranges; San Gabriel Mountains region: San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. 1.8 mi from gate. South side. Comment
  UC1953168  Helianthus inexpectatus Mark Elvin with Julie Vanderwier 2002-8-12 2124 Los Angeles Western Transverse Range: Newhall Ranch, large natural spring at north foot of Airport Mesa, 0.75 mi SW of Castaic Junction, above confluence of Castaic Creek with Santa Clara River. Comment
  UC1953169  Helianthus inexpectatus Mark A. Elvin, Tricia Wotipka 2002-9-5 2140 Los Angeles Western Transverse Range: Newhall Ranch, large natural spring at north foot of Airport Mesa, 0.75 mi SW of Castaic Junction, above confluence of Castaic Creek with Santa Clara River Comment
  UC1953171  Helianthus californicus Mark A. Elvin with J. M. Porter, Anuja Parikh 2003-11-5 3099 Los Angeles Liebre Mountains: Agua Dulce Canyon Comment
  UC2062985  Ribes indecorum Mark Elvin with Michael Wall 1997-3-5 364 Los Angeles San Gabriel Mountains, off Mount Baldy Road 0.3 miles S from intersection with [Padua Avenue], 200 m off road. Comment
  UC2062992  Ribes cereum Mark Elvin with Michael Wall 1997-3-5 363 Los Angeles San Gabriel Mountains, off Mount Baldy Road 0.3 miles S from intersection with [Padua Avenue], 50 m off road. Comment
  UC2062994  Berberis nevinii Mark Elvin with Michael Wall 1997-3-5 362 Los Angeles San Gabriel Mountains, off Mount Baldy Road 0.3 miles S from intersection with [Padua Avenue], 50 m off road. Comment
  UCD169645  Muhlenbergia microsperma Mark Elvin; Sarah Crockett 1997-3-17 372 Los Angeles Channel Islands, Santa Catalina Island: Cape Canyon. W side of Canyon. 1.25 m NE middle Ranch on Cape Canyon Road. Towards canyon floor opposite machine house at outcrop with Heteromeles buch [sic. bush?] on top. N slope of ridge. Comment
  UCD170165  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-6-30 2961 Los Angeles Western Transverse Range; Santa Clarita Valley Area: Newhall Ranch, west side of Grapevine Mesa, 4 km SW (216 degrees) of intersection of I-5 Fwy and Hwy. 111 Comment
  UCD170166  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-4-24 2527 Los Angeles Santa Clara River Valley: Valencia, Newhall Ranch, entrance to Magic Mountain Theme Park, survey area 62. 366 Comment
  UCD170167  Chorizanthe parryi var. fernandina Mark A. Elvin; Cathleen Weigand 2003-4-8 2453 Los Angeles Santa Clarita Valley: Newhall Ranch Commerce Center, confluence of Halsey Canyon and Castaic Creek, N of Hwy 126. 319 Comment
  UCD99798  Chorizanthe parryi var. fernandina Mark A. Elvin; Vipul Joshi, Tricia Wotipka 2003-6-11 2940 Los Angeles N end of Santa Susana Mtns.: Newhall Ranch, ridge ca 900 m SW of 'Airport Mesa'. 366 Comment
  UCD99801  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-6-19 2948 Los Angeles Western Transverse Range: hills west of San Martinez Grande Canyon and north of CA Hwy 126, Newhall Ranch. 366 Comment
  UCD99814  Eriogonum cithariforme var. agninum Mark A. Elvin 2003-5-25 2927 A Los Angeles NE end of Santa Susana Mtns; Newhall Ranch, Salt Creek, mesa in middle of Salt Creek drainage. 595 Comment
  UCR126003  Chorizanthe parryi var. fernandina Mark A. Elvin, Tricia Wotipka, Julie M. Vanderwier 2002-8-22 2138 Los Angeles Western Transverse Range, Newhall Ranch, north of Santa Clara River, west of Martinez Grande Rd. 351 Comment
  UCR126549  Nemacladus longiflorus var. breviflorus Mark A. Elvin 2003-5-1 s.n. Los Angeles Santa Clarita Valley, Newhall Ranch, Castaic Mesas. c. 1 mi SW of Castaic Lagoon at the W edge of a mesa, north of Charlie Canyon 366 Comment
  UCR126550  Gilia capitata subsp. abrotanifolia Mark A. Elvin 2003-5-1 s.n. Los Angeles Santa Clarita Valley, Newhall Ranch, Castaic Mesas. c. 1 mi SW of Castaic Lagoon at the W edge of a mesa, north of Charlie Canyon 366 Comment
  UCR126551  Cyperus esculentus Mark A. Elvin, Kim Marsden 2003-8-8 2977 Los Angeles Santa Clarita Valley, Newhall Ranch, Santa Clara River, c. 100 m east of the Ventura Co. line 290 Comment
  UCR126552  Juncus bufonius Mark A. Elvin, Kim Marsden 2003-8-8 2973 Los Angeles Santa Clarita Valley, Newhall Ranch, Santa Clara River, c. 100 m east of the Ventura Co. line 290 Comment
  UCR126553  Eleocharis parishii Mark A. Elvin, Kim Marsden 2003-8-8 2978 Los Angeles Santa Clarita Valley, Newhall Ranch, Santa Clara River, c. 100 m east of the Ventura Co. line 290 Comment
  UCR126554  Eucalyptus camaldulensis Mark A. Elvin, Kim Marsden 2003-8-8 2979 Los Angeles Santa Clarita Valley, Newhall Ranch, Santa Clara River, c. 100 m east of the Ventura Co. line 290 Comment
  UCR126776  Chorizanthe parryi var. fernandina Mark A. Elvin, Vipul Joshi, Tricia Wotipka 2003-6-11 2940 Los Angeles N end of Santa Susana Mtns., Newhall Ranch, ridge c. 900 m SW of 'Airport Mesa 366 Comment
  UCR126777  Dudleya lanceolata Mark A. Elvin 2003-6-12 2942 Los Angeles Santa Clarita Valley, Newhall Ranch, south side of Potrero Canyon, south of Potrero Mesa 335 Comment
  UCR126785  Clarkia purpurea Mark A. Elvin 2003-6-12 2945 Los Angeles Santa Clarita Valley, Newhall Ranch, south of Magic Mountain Amusement Park, west of The Old Road 366 Comment
  UCR126786  Baccharis sarothroides Mark A. Elvin 2003-6-12 2947 Los Angeles Santa Clarita Valley, Newhall Ranch, south of Magic Mountain Amusement Park, west of The Old Road 366 Comment
  UCR126787  Lagophylla ramosissima Mark A. Elvin 2003-6-12 2946 Los Angeles Santa Clarita Valley, Newhall Ranch, south of Magic Mountain Amusement Park, west of The Old Road 366 Comment
  UCR126788  Hemizonia fasciculata Mark A. Elvin 2003-6-12 2944 Los Angeles Santa Clarita Valley, Newhall Ranch, south of Magic Mountain Amusement Park, west of The Old Road 366 Comment
  UCR126789  Haplopappus venetus Mark A. Elvin 2003-6-12 2947 B Los Angeles Santa Clarita Valley, Newhall Ranch, south of Magic Mountain Amusement Park, west of The Old Road 366 Comment
  UCR126792  Chrysothamnus nauseosus Mark A. Elvin 2003-8-13 s.n. Los Angeles Santa Clarita Valley, Newhall Ranch, Santa Clara River at the mouth of Long Canyon 274 Comment
  UCR126793  Ceanothus oliganthus Mark A. Elvin 2003-8-13 2987 Los Angeles Santa Clarita Valley, Newhall Ranch, Santa Clara River at the mouth of Long Canyon 274 Comment
  UCR126947  Phacelia imbricata subsp. imbricata Mark A. Elvin 2003-6-12 2943 Los Angeles Santa Clarita Valley, Newhall Ranch, south side of Potrero Canyon, south of Potrero Mesa 335 Comment
  UCR127017  Descurainia sophia Mark A. Elvin, Cathleen Weigand 2003-4-7 2442 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, south of Castaic Creek, north of SR 126 297 Comment
  UCR127020  Microseris lindleyi Mark A. Elvin, Cathleen Weigand 2003-4-7 2437 Los Angeles Castaic Valley, Newhall Ranch, junction of Hasley Canyon and Castaic Creek 335 Comment
  UCR127021  Microseris lindleyi Mark A. Elvin, Cathleen Weigand 2003-4-8 2462 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, ridge between Hasley and Castaic Creeks 351 Comment
  UCR127022  Calandrinia ciliata Mark A. Elvin, Cathleen Weigand 2003-4-8 2465 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, ridge between Hasley and Castaic Creeks 351 Comment
  UCR127024  Astragalus didymocarpus var. didymocarpus Mark A. Elvin, Cathleen Weigand 2003-4-8 2460 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, ridge between Hasley and Castaic Creeks 351 Comment
  UCR127025  Trifolium albopurpureum Mark A. Elvin, Cathleen Weigand 2003-4-8 2454 Los Angeles Castaic Valley, Newhall Ranch, confluence of Hasley Canyon with Castaic Creek, ridge north of the confluence 351 Comment
  UCR127026  Trifolium ciliolatum Mark A. Elvin, Cathleen Weigand 2003-4-7 2438 A Los Angeles Castaic Valley, Newhall Ranch, junction of Hasley Canyon and Castaic Creek 335 Comment
  UCR127027  Trifolium gracilentum Mark A. Elvin, Cathleen Weigand 2003-4-7 2438 B Los Angeles Castaic Valley, Newhall Ranch, junction of Hasley Canyon and Castaic Creek 335 Comment
  UCR127028  Oenothera californica Mark A. Elvin, Cathleen Weigand 2003-4-7 2441 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, south of Castaic Creek, north of SR 126 297 Comment
  UCR127033  Phacelia viscida Mark A. Elvin 2003-4-9 2472 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, canyon north of SR 126 from 'Grapevine Mesa 335 Comment
  UCR127034  Mirabilis laevis Mark A. Elvin 2003-4-9 2469 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, canyon north of SR 126 from 'Grapevine Mesa 335 Comment
  UCR127054  Bromus diandrus Mark A. Elvin, Cathleen Weigand 2003-4-8 2466 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, ridge between Hasley and Castaic Creeks 351 Comment
  UCR127055  Vicia villosa Mark A. Elvin, Cathleen Weigand 2003-4-7 2444 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, south of Castaic Creek, north of SR 126 297 Comment
  UCR127056  Calochortus clavatus Mark A. Elvin, Cathleen Weigand 2003-4-7 2436 Los Angeles Castaic Valley, Newhall Ranch, junction of Hasley Canyon and Castaic Creek 335 Comment
  UCR127057  Lasthenia glabrata subsp. coulteri Mark A. Elvin, Cathleen Weigand 2003-4-7 2435 Los Angeles Castaic Valley, Newhall Ranch, junction of Hasley Canyon and Castaic Creek 335 Comment
  UCR127058  Ceanothus cuneatus Mark A. Elvin, Cathleen Weigand 2003-4-8 2458 Los Angeles Santa Clarita Valley, Newhall Ranch, flats south of confluence of Hasley Canyon with Castaic Creek 297 Comment
  UCR127059  Antirrhinum coulterianum Mark A. Elvin, Cathleen Weigand 2003-4-8 2459 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, ridge between Hasley and Castaic Creeks 351 Comment
  UCR127060  Nicotiana quadrivalvis Mark A. Elvin, Cathleen Weigand 2003-4-7 2443 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, south of Castaic Creek, north of SR 126 297 Comment
  UCR127061  Dimorphotheca sinuata Mark A. Elvin, Cathleen Weigand 2003-4-7 2439 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, south of Castaic Creek, north of SR 126 297 Comment
  UCR127062  Stanleya pinnata var. pinnata Mark A. Elvin 2003-4-9 2468 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, canyon north of SR 126 from 'Grapevine Mesa 335 Comment
  UCR127063  Brassica tournefortii Mark A. Elvin, Cathleen Weigand 2003-4-8 2467 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, ridge between Hasley and Castaic Creeks 351 Comment
  UCR127064  Dimorphotheca sinuata Mark A. Elvin, Cathleen Weigand 2003-4-8 2463 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, ridge between Hasley and Castaic Creeks 351 Comment
  UCR127065  Festuca microstachys Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2925 Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127066  Pectocarya anisocarpa Mark A. Elvin, Cathleen Weigand 2003-4-7 2449 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, south of Castaic Creek, north of SR 126 297 Comment
  UCR127067  Lupinus sparsiflorus Mark A. Elvin, Cathleen Weigand 2003-4-7 2446 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, south of Castaic Creek, north of SR 126 297 Comment
  UCR127068  Rumex hymenosepalus Mark A. Elvin, Cathleen Weigand 2003-4-7 2448 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, south of Castaic Creek, north of SR 126 297 Comment
  UCR127069  Lupinus microcarpus var. densiflorus Mark A. Elvin, Cathleen Weigand 2003-4-7 2445 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, south of Castaic Creek, north of SR 126 297 Comment
  UCR127070  Cryptantha microstachys Mark A. Elvin, Cathleen Weigand 2003-4-8 2464 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, ridge between Hasley and Castaic Creeks 351 Comment
  UCR127090  Piptatherum miliaceum Mark A. Elvin, Cathleen Weigand 2003-4-8 2457 Los Angeles Santa Clarita Valley, Newhall Ranch, flats south of confluence of Hasley Canyon with Castaic Creek 297 Comment
  UCR127091  Gnaphalium palustre Mark A. Elvin, Cathleen Weigand 2003-4-7 2452 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, south of Castaic Creek, north of SR 126 297 Comment
  UCR127092  Cryptantha micrantha var. lepida Mark A. Elvin, Cathleen Weigand 2003-4-7 2451 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, south of Castaic Creek, north of SR 126 297 Comment
  UCR127093  Stylocline gnaphaloides Mark A. Elvin, Cathleen Weigand 2003-4-7 2450 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, south of Castaic Creek, north of SR 126 297 Comment
  UCR127234  Ribes californicum var. hesperium Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 s.n. Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127235  Bromus tectorum Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2916 Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127236  Gilia capitata Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2919 Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127237  Eschscholzia californica Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2920 Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127238  Elymus elymoides Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2923 Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127239  Eriogonum fasciculatum var. foliolosum Mark A. Elvin 2003-5-25 2927 B Los Angeles NE end of Santa Susana Mtns., Newhall Ranch, Salt Creek, mesa in middle of Salt Creek drainage 595 Comment
  UCR127240  Antirrhinum multiflorum Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2927 Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127241  Sisyrinchium bellum Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2924 Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127242  Dryopteris arguta Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2926 Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127243  Clarkia affinis Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2922 Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127244  Cryptantha corollata Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2921 Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127245  Linanthus androsaceus Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2917 Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127365  Camissonia boothii subsp. decorticans Mark A. Elvin 2003-4-9 2471 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, canyon north of SR 126 from 'Grapevine Mesa 335 Comment
  UCR127366  Marah macrocarpa Mark A. Elvin 2003-4-9 2470 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, canyon north of SR 126 from 'Grapevine Mesa 335 Comment
  UCR127628  Clarkia purpurea Mark A. Elvin, Cathleen Weigand 2003-5-22 2890 A? Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR127631  Vicia americana Mark A. Elvin, Cathleen Weigand 2003-5-22 2893 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR127632  Allophyllum divaricatum Mark A. Elvin, Cathleen Weigand 2003-5-22 2894 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR127633  Sisymbrium altissimum Mark A. Elvin, Cathleen Weigand 2003-5-22 2895 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR127634  Cirsium occidentale Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2914 Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127635  Clarkia purpurea Mark A. Elvin, Cathleen Weigand 2003-5-22 2891 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR127636  Malacothamnus fremontii Mark A. Elvin 2003-8-13 2986 Los Angeles Santa Clarita Valley, Newhall Ranch, Santa Clara River at the mouth of Long Canyon 274 Comment
  UCR127637  Camissonia graciliflora Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2915 Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127638  Malacothamnus marrubioides Mark A. Elvin 2003-8-13 2988 Los Angeles Santa Clarita Valley, Newhall Ranch, Santa Clara River at the mouth of Long Canyon 274 Comment
  UCR127639  Cirsium occidentale var. californicum Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2913 Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127640  Cirsium occidentale var. occidentale Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2912 Los Angeles Santa Susana Mtns., Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. 915 Comment
  UCR127669  Eriogonum gracile var. gracile Mark A. Elvin, Kim Marsden 2003-8-8 2970 A Los Angeles Santa Clarita Valley, Newhall Ranch, Potrero Canyon SW of the junction of Potrero Creek and the Santa Clara River 305 Comment
  UCR127670  Eriogonum angulosum Mark A. Elvin, Kim Marsden 2003-8-8 2970 B Los Angeles Santa Clarita Valley, Newhall Ranch, SW face of Potrero Mesa 305 Comment
  UCR127671  Eriogonum angulosum Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-14 3007 Los Angeles Santa Clarita Valley, Newhall Ranch, mouth of Castaic Creek, south of SR 126 290 Comment
  UCR127672  Eriogonum gracile var. gracile Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-14 3002 Los Angeles Santa Clarita Valley, Newhall Ranch, mouth of Castaic Creek, south of SR 126 290 Comment
  UCR127673  Eriogonum gracile var. gracile Mark A. Elvin 2003-8-13 2985 Los Angeles Santa Clarita Valley, Newhall Ranch, Santa Clara River at the mouth of Long Canyon 274 Comment
  UCR127674  Eriogonum cithariforme var. agninum Mark A. Elvin 2003-5-25 2927 A Los Angeles NE end of Santa Susana Mtns., Newhall Ranch, Salt Creek, mesa in middle of Salt Creek drainage 595 Comment
  UCR127828  Eriogonum gracile var. gracile Mark A. Elvin 2003-6-19 2951 Los Angeles Western Transverse Range, hills west of San Martinez Grande Canyon and north of Calif. Hwy 126, Newhall Ranch 366 Comment
  UCR127885  Coreopsis tinctoria Mark A. Elvin, Kim Marsden 2003-8-8 2972 Los Angeles Santa Clarita Valley, Newhall Ranch, Santa Clara River, c. 100 m east of the Ventura Co. line 290 Comment
  UCR127886  Mimulus pilosus Mark A. Elvin, Kim Marsden 2003-8-8 2974 Los Angeles Santa Clarita Valley, Newhall Ranch, Santa Clara River, c. 100 m east of the Ventura Co. line 290 Comment
  UCR128000  Spartium junceum Mark A. Elvin 2003-8-13 2984 Los Angeles Santa Clarita Valley, Newhall Ranch, Santa Clara River at the mouth of Long Canyon 274 Comment
  UCR128001  Lotus corniculatus Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-13 2992 Los Angeles Santa Clarita Valley, S side of the Santa Clara River, c. 200 m upstream from the mouth of Potrero Creek 274 Comment
  UCR128002  Eriogonum fasciculatum var. foliolosum Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-14 2998 Los Angeles Santa Clarita Valley, Newhall Ranch, mouth of Castaic Creek, south of SR 126 290 Comment
  UCR128003  Argemone munita Mark A. Elvin, Kim Marsden, Cathleen Wiegand 2003-8-15 3006 Los Angeles Santa Clarita Valley, Newhall Ranch, mouth of Castaic Creek, south of SR 126 290 Comment
  UCR128004  Baccharis salicina Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-13 2996 Los Angeles Santa Clarita Valley, S side of the Santa Clara River, c. 200 m upstream from the mouth of Potrero Creek 274 Comment
  UCR128005  Juncus xiphioides Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-13 2997 Los Angeles Santa Clarita Valley, S side of the Santa Clara River, c. 200 m upstream from the mouth of Potrero Creek 274 Comment
  UCR128006  Plantago major Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-13 2994 Los Angeles Santa Clarita Valley, S side of the Santa Clara River, c. 200 m upstream from the mouth of Potrero Creek 274 Comment
  UCR128007  Pulicaria paludosa Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-13 2995 Los Angeles Santa Clarita Valley, S side of the Santa Clara River, c. 200 m upstream from the mouth of Potrero Creek 274 Comment
  UCR128008  Epilobium canum subsp. latifolium Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-13 2993 Los Angeles Santa Clarita Valley, S side of the Santa Clara River, c. 200 m upstream from the mouth of Potrero Creek 274 Comment
  UCR128009  Gnaphalium canescens subsp. microcephalum Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-14 2999 Los Angeles Santa Clarita Valley, Newhall Ranch, mouth of Castaic Creek, south of SR 126 290 Comment
  UCR128010  Verbena lasiostachys Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-14 3000 Los Angeles Santa Clarita Valley, Newhall Ranch, mouth of Castaic Creek, south of SR 126 290 Comment
  UCR128011  Euphorbia maculata Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-14 3001 Los Angeles Santa Clarita Valley, Newhall Ranch, mouth of Castaic Creek, south of SR 126 290 Comment
  UCR128012  Bolboschoenus maritimus subsp. paludosus Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-14 3004 Los Angeles Santa Clarita Valley, Newhall Ranch, mouth of Castaic Creek, south of SR 126 290 Comment
  UCR128013  Nemophila menziesii var. menziesii Mark A. Elvin 2003-5-1 s.n. Los Angeles Santa Clarita Valley, Newhall Ranch, Castaic Mesas. c. 1 mi SW of Castaic Lagoon at the W edge of a mesa, north of Charlie Canyon 366 Comment
  UCR128014  Malacothamnus fasciculatus Mark A. Elvin 2003-8-13 2982 Los Angeles NE end of the Santa Susana Mtns., Newhall Ranch, Potrero Canyon south of Potrero Creek 360 Comment
  UCR128015  Orobanche parishii subsp. parishii Mark A. Elvin 2003-8-13 2980 Los Angeles NE end of the Santa Susana Mtns., Newhall Ranch, Potrero Canyon south of Potrero Creek 360 Comment
  UCR128016  Epilobium canum subsp. canum Mark A. Elvin 2003-8-13 2981 Los Angeles NE end of the Santa Susana Mtns., Newhall Ranch, Potrero Canyon south of Potrero Creek 360 Comment
  UCR128017  Verbascum virgatum Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-13 2291 Los Angeles Santa Clarita Valley, S side of the Santa Clara River, c. 200 m upstream from the mouth of Potrero Creek 274 Comment
  UCR128018  Foeniculum vulgare Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-13 2990 Los Angeles Santa Clarita Valley, S side of the Santa Clara River, c. 200 m upstream from the mouth of Potrero Creek 274 Comment
  UCR128019  Stachys albens Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-13 2989 Los Angeles Santa Clarita Valley, S side of the Santa Clara River, c. 200 m upstream from the mouth of Potrero Creek 274 Comment
  UCR128093  Stephanomeria virgata subsp. virgata Mark A. Elvin 2003-6-19 2952 Los Angeles Western Transverse Range, hills west of San Martinez Grande Canyon and north of Calif. Hwy 126, Newhall Ranch 366 Comment
  UCR128094  Eriogonum baileyi var. baileyi Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-14 3003 Los Angeles Santa Clarita Valley, Newhall Ranch, mouth of Castaic Creek, south of SR 126 290 Comment
  UCR128096  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-6-19 2948 Los Angeles Western Transverse Range, hills west of San Martinez Grande Canyon and north of Calif. Hwy 126, Newhall Ranch 366 Comment
  UCR128097  Malacothamnus fasciculatus var. laxiflorus Mark A. Elvin 2003-6-19 2950 Los Angeles Western Transverse Range, hills west of San Martinez Grande Canyon and north of Calif. Hwy 126, Newhall Ranch 366 Comment
  UCR128098  Eriogonum angulosum Mark A. Elvin 2003-6-19 2949 Los Angeles Western Transverse Range, hills west of San Martinez Grande Canyon and north of Calif. Hwy 126, Newhall Ranch 366 Comment
  UCR128154  Calystegia peirsonii Mark A. Elvin, Cathleen Weigand 2003-4-7 2447 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, south of Castaic Creek, north of SR 126 297 Comment
  UCR128155  Lessingia filaginifolia Mark A. Elvin, Cathleen Weigand 2003-5-22 2905 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR128156  Trichostema lanatum Mark A. Elvin, Cathleen Weigand 2003-5-22 2906 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR128157  Dicentra ochroleuca Mark A. Elvin, Cathleen Weigand 2003-5-22 2901 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR128158  Scrophularia californica Mark A. Elvin, Cathleen Weigand 2003-5-22 2900 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR128159  Dendromecon rigida Mark A. Elvin, Cathleen Weigand 2003-5-22 2898 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR128160  Bromus grandis Mark A. Elvin, Cathleen Weigand 2003-5-22 2908 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR128161  Stephanomeria cichoriacea Mark A. Elvin, Cathleen Weigand 2003-5-22 2907 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR128162  Microseris lindleyi Mark A. Elvin, Cathleen Weigand 2003-5-22 2896 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR128259  Ribes malvaceum Mark A. Elvin, Cathleen Weigand 2003-5-22 2903 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR128260  Eriastrum densifolium subsp. densifolium Mark A. Elvin, Cathleen Weigand 2003-5-22 2909 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR130808  Ceanothus oliganthus Mark A. Elvin, Cathleen Weigand 2003-5-22 2904 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR142064  Gnaphalium leucocephalum Mark A. Elvin 2003-8-13 2983 Los Angeles Santa Clarita Valley, Newhall Ranch, Santa Clara River at the mouth of Long Canyon 274 Comment
  UCR142065  Gnaphalium leucocephalum Mark A. Elvin, Kim Marsden, Cathleen Wiegand 2003-8-15 3005 Los Angeles Santa Clarita Valley, Newhall Ranch, mouth of Castaic Creek, south of SR 126 290 Comment
  UCR145961  Lupinus microcarpus var. microcarpus Mark A. Elvin, Cathleen Weigand 2003-4-8 2455 Los Angeles Santa Clarita Valley, Newhall Ranch, flats south of confluence of Hasley Canyon with Castaic Creek 297 Comment
  UCR162652  Malacothamnus fasciculatus Mark A. Elvin 2003-8-14 s.n. Los Angeles Santa Clarita Valley, Newhall Ranch, mouth of Castaic Creek, south of SR 126 290 Comment
  UCR204094  Quercus pacifica Mark A. Elvin, Janet Takera, Mary Meyer, Shelia Shyler, Sarah Crockett 1997-3-16 367 Los Angeles Channel Islands, Santa Catalina Island, open area at curve in road past garden to Divide Road Comment
  UCR204098  Ceanothus leucodermis Mark A. Elvin, Anne Marie Ruff 1996-8-1 302 Los Angeles Transverse Ranges; San Gabriel Mountains, Angeles National Forest, Glendora Ridge Road, 4.2 mi from gate 1043 Comment
  UCR204193  Heuchera elegans Mark A. Elvin, Orlando Mistretta 1995-9-15 100 Los Angeles Transverse Ranges; San gabriel Mountains, Glendora Saddle up trail to Lookout Mountain 1494 Comment
  UCR204194  Adiantum jordanii Mark A. Elvin 1996-4-20 160 Los Angeles Channel Islands, San Clemente Island 355 Comment
  UCR204195  Astragalus miguelensis Mark A. Elvin, Orlando Mistretta 1996-3-22 114 Los Angeles Channel Islands, San Clemente Island Comment
  UCR204196  Senecio lyonii Mark A. Elvin, Orlando Mistretta 1996-3-24 123 Los Angeles Channel Islands, San Clemente Island 9 Comment
  UCR204197  Castilleja grisea Mark A. Elvin, Orlando Mistretta 1996-3-24 133 Los Angeles Channel Islands, San Clemente Island, Eagle Canyon 373 Comment
  UCR204198  Adiantum jordanii Mark A. Elvin, Orlando Mistretta 1996-3-24 136 Los Angeles Channel Islands, San Clemente Island, Eagle Canyon 244 Comment
  UCR204200  Senecio lyonii Mark A. Elvin, Dylan Hannon, Gary Allan, Curtis Clark 1996-4-19 146 Los Angeles Channel Islands, San Clemente Island 9 Comment
  UCR204201  Eriophyllum nevinii Mark A. Elvin, Dylan Hannon, Gary Allan, Curtis Clark 1996-4-19 147 Los Angeles Channel Islands, San Clemente Island 30 Comment
  UCR204202  Spergularia macrotheca Mark A. Elvin, Dylan Hannon, Gary Allan, Curtis Clark 1996-4-19 148 Los Angeles Channel Islands, San Clemente Island, North Head, top of slopes between 1st and 2nd terrace point at North Head Rock 12 Comment
  UCR204203  Malacothrix foliosa Mark A. Elvin, Dylan Hannon, Gary Allan, Curtis Clark 1996-4-19 149 Los Angeles Channel Islands, San Clemente Island, North Head, top of slopes between 1st and 2nd terrace point at North Head Rock 12 Comment
  UCR204204  Gilia nevinii Mark A. Elvin, Dylan Hannon, Gary Allan, Curtis Clark 1996-4-19 151 Los Angeles Channel Islands, San Clemente Island, North Head, top of slopes between 1st and 2nd terrace point at North Head Rock 12 Comment
  UCR204205  Galium catalinense subsp. acrispum Mark A. Elvin, Dylan Hannon, Gary Allan, Curtis Clark, Steve Burckhalter 1996-4-20 159 Los Angeles Channel Islands, San Clemente Island, third canyon south of Bryce 305 Comment
  UCR204206  Lithophragma maximum Mark A. Elvin, Dylan Hannon, Gary Allan, Curtis Clark, Steve Burckhalter 1996-4-20 165 Los Angeles Channel Islands, San Clemente Island, third canyon south of Bryce 305 Comment
  UCR204207  Scrophularia villosa Mark A. Elvin, Dylan Hannon, Gary Allan, Curtis Clark, Steve Burckhalter 1996-4-20 168 Los Angeles Channel Islands, San Clemente Island, Stone Field Station, just below balcony. Comment
  UCR204208  Malacothamnus clementinus Mark A. Elvin, Dylan Hannon, Gary Allan, Curtis Clark, Steve Burckhalter 1996-4-20 169 Los Angeles Channel Islands, San Clemente Island, Lemon Tank Comment
  UCR217345  Achyrachaena mollis Mark A. Elvin, Joseph G. Decruyenaere 2003-5-8 2719 Los Angeles Western Transverse Range; Santa Susana Mountains, Newhall Ranch, Potrero Canyon, beside road on south side of canyon 305 Comment
  UCR219836  Monardella hypoleuca subsp. hypoleuca Mark A. Elvin, Adam Clause 2008-5-30 5972 Los Angeles Transverse Range; Santa Monica Mtns., Santa Ynez Canyon, c. 300 m north of Ver de La Montura Rd. Comment
  UCR237643  Ludwigia peploides Mark A. Elvin 2003-8-14 3008 Los Angeles Santa Clarita Valley, Newhall Ranch, Santa Clara River at mouth of Chiquito Canyon, south of SR 126 271 Comment
  UCR237896  Raphanus sativus Mark A. Elvin 2003-4-22 2531 Los Angeles Western Transverse Range, Newhall Ranch, bee site on open former oil well pad just east of Grapevine Mesa, S of Santa Clara River and Hwy 126, c. 4 mi. east of Ventura Co. line 314 Comment
  UCR237897  Gilia angelensis Mark A. Elvin 2003-4-22 2529 Los Angeles Western Transverse Range, Newhall Ranch, bee site on open former oil well pad just east of Grapevine Mesa, S of Santa Clara River and Hwy 126, c. 4 mi. east of Ventura Co. line 314 Comment
  UCR237898  Chenopodium berlandieri Mark A. Elvin 2003-4-22 2530 Los Angeles Western Transverse Range, Newhall Ranch, bee site on open former oil well pad just east of Grapevine Mesa, S of Santa Clara River and Hwy 126, c. 4 mi. east of Ventura Co. line 314 Comment
  UCR237899  Stipa coronata Mark A. Elvin 2003-5-1 2494 Los Angeles Santa Clarita Valley, Newhall Ranch, Castaic Mesas, c. 1.5 km east of Castaic Lagoon in Charlie Canyon, survey area 69 396 Comment
  UCR237900  Clarkia unguiculata Mark A. Elvin 2003-4-22 2532 Los Angeles Western Transverse Range, Newhall Ranch, bee site on open former oil well pad just east of Grapevine Mesa, S of Santa Clara River and Hwy 126, c. 4 mi. east of Ventura Co. line 314 Comment
  UCR237901  Phacelia Mark A. Elvin 2003-4-22 2528 Los Angeles Western Transverse Range, Newhall Ranch, bee site on open former oil well pad just east of Grapevine Mesa, S of Santa Clara River and Hwy 126, c. 4 mi. east of Ventura Co. line 314 Comment
  UCR237902  Chorizanthe parryi var. fernandina Mark A. Elvin, Cathleen Weigand 2003-4-8 2453 Los Angeles Santa Clarita Valley, Newhall Ranch Commerce Center, confluence of Hasley Canyon and Castaic Creek, N of Hwy 126 319 Comment
  UCR237903  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-4-24 2527 Los Angeles Santa Clara RiverValley, Valencia, Newhall Ranch, entrance to Magic Mountain Theme Park, survey area 62 549 Comment
  UCR237904  Ancistrocarphus filagineus Mark A. Elvin 2003-5-1 2500 Los Angeles Santa Clarita Valley, Newhall Ranch, Castaic Mesas, c. 1.5 km east of Castaic Lagoon in Charlie Canyon, survey area 69 396 Comment
  UCR237905  Lomatium dasycarpum Mark A. Elvin 2003-5-1 2497 Los Angeles Santa Clarita Valley, Newhall Ranch, Castaic Mesas, c. 1.5 km east of Castaic Lagoon in Charlie Canyon, survey area 69 396 Comment
  UCR237906  Trifolium ciliolatum Mark A. Elvin 2003-5-1 2496 Los Angeles Santa Clarita Valley, Newhall Ranch, Castaic Mesas, c. 1.5 km east of Castaic Lagoon in Charlie Canyon, survey area 69 396 Comment
  UCR237907  Stipa lepida Mark A. Elvin 2003-5-1 2493 Los Angeles Santa Clarita Valley, Newhall Ranch, Castaic Mesas, c. 1.5 km east of Castaic Lagoon in Charlie Canyon, survey area 69 396 Comment
  UCR237908  Eriastrum sapphirinum Mark A. Elvin 2003-5-1 2495 Los Angeles Santa Clarita Valley, Newhall Ranch, Castaic Mesas, c. 1.5 km east of Castaic Lagoon in Charlie Canyon, survey area 69 396 Comment
  UCR237909  Trifolium albopurpureum Mark A. Elvin 2003-5-1 2498 Los Angeles Santa Clarita Valley, Newhall Ranch, Castaic Mesas, c. 1.5 km east of Castaic Lagoon in Charlie Canyon, survey area 69 396 Comment
  UCR237910  Pectocarya setosa Mark A. Elvin 2003-5-1 2499 Los Angeles Santa Clarita Valley, Newhall Ranch, Castaic Mesas, c. 1.5 km east of Castaic Lagoon in Charlie Canyon, survey area 69 396 Comment
  UCR237911  Astragalus gambelianus Mark A. Elvin 2003-5-1 2501 Los Angeles Santa Clarita Valley, Newhall Ranch, Castaic Mesas, c. 1.5 km east of Castaic Lagoon in Charlie Canyon, survey area 69 396 Comment
  UCR238072  Atriplex suberecta Mark A. Elvin, M. S. Enright 2002-7-22 2110 Los Angeles Western Transverse Range, Newhall Ranch, Salt Creek 305 Comment
  UCR238073  Hemizonia paniculata Mark A. Elvin, M. S. Enright 2002-7-22 2112 Los Angeles Western Transverse Range, Newhall Ranch, Salt Creek 305 Comment
  UCR238074  Atriplex argentea Mark A. Elvin, M. S. Enright 2002-7-22 2111 Los Angeles Western Transverse Range, Newhall Ranch, Salt Creek 305 Comment
  UCR238075  Eremothera boothii subsp. decorticans Mark A. Elvin, Julie M. Vanderwier 2002-7-18 2106 Los Angeles Western Transverse Range; Santa Clarita Valley Area, Newhall Ranch, ridge west of Potrero Canyon 396 Comment
  UCR238076  Encelia actoni Mark A. Elvin, Julie M. Vanderwier 2002-7-18 2105 Los Angeles Western Transverse Range; Santa Clarita Valley Area, Newhall Ranch, ridge west of Potrero Canyon 396 Comment
  UCR238077  Brickellia nevinii Mark A. Elvin, Julie M. Vanderwier 2002-7-18 2104 Los Angeles Western Transverse Range; Santa Clarita Valley Area, Newhall Ranch, ridge west of Potrero Canyon 396 Comment
  UCR238078  Juglans californica Mark A. Elvin, Julie M. Vanderwier 2002-7-18 2103 Los Angeles Western Transverse Range; Santa Clarita Valley Area, Newhall Ranch, ridge west of Potrero Canyon 396 Comment
  UCR238079  Malosma laurina Mark A. Elvin, Julie M. Vanderwier 2002-7-18 2102 Los Angeles Western Transverse Range; Santa Clarita Valley Area, Newhall Ranch, ridge west of Potrero Canyon 396 Comment
  UCR238080  Stephanomeria pauciflora Mark A. Elvin, Julie M. Vanderwier 2002-7-18 2101 Los Angeles Western Transverse Range; Santa Clarita Valley Area, Newhall Ranch, ridge west of Potrero Canyon 396 Comment
  UCR238081  Convolvulus arvensis Mark A. Elvin, Julie M. Vanderwier 2002-7-17 2098 Los Angeles Western Transverse Range; Santa Clarita Valley, west face of Potrero Mesa, south of Santa Clara River, above Pico Canyon Rd. 305 Comment
  UCR238082  Solanum elaeagnifolium Mark A. Elvin, Julie M. Vanderwier 2002-7-17 2098 A Los Angeles Western Transverse Range; Santa Clarita Valley, west face of Potrero Mesa, south of Santa Clara River, above Pico Canyon Rd. 305 Comment
  UCR238092  Chorizanthe parryi var. fernandina Mark A. Elvin 2003-6-30 2961 Los Angeles Western Transverse Range; Santa Clarita Valley Area, Newhall Ranch, west side of Grapevine Mesa, 4 km SW (216 deg. ) of intersection of I-5 Fwy and Hwy 126 366 Comment
  UCR238093  Microseris heterocarpa Mark A. Elvin, Cathleen Weigand 2003-5-22 2892 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR238094  Clarkia affinis Mark A. Elvin, Cathleen Weigand 2003-5-22 2890 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR238095  Lupinus excubitus Mark A. Elvin, Scott Boczkiewicz 2003-5-15 2782 Los Angeles Western Transverse Range; Santa Susana Mountains, Newhall Ranch, crest of mountains at head of Salt Creek watershed, near Ventura Co. line 884 Comment
  UCR238096  Astragalus trichopodus var. phoxus Mark A. Elvin, Scott Boczkiewicz 2003-5-15 2784 Los Angeles Western Transverse Range; Santa Susana Mountains, Newhall Ranch, crest of mountains at head of Salt Creek watershed, near Ventura Co. line 884 Comment
  UCR238097  Lupinus excubitus Mark A. Elvin, Scott Boczkiewicz 2003-5-15 2783 Los Angeles Western Transverse Range; Santa Susana Mountains, Newhall Ranch, crest of mountains at head of Salt Creek watershed, near Ventura Co. line 884 Comment
  UCR238098  Acourtia microcephala Mark A. Elvin 2003-7-1 2962 Los Angeles Western Transverse Range; Santa Susana Mountains, Newhall Ranch, 'Exon Mesa', 3.25 km SW (213 deg. ) of intersection of I-5 Fwy and Hwy 126, S of Santa Clara River 335 Comment
  UCR238099  Eriastrum densifolium Mark A. Elvin, Margie P. Elvin, K. Elvin, A. Elvin 2003-7-1 2965 Los Angeles Western Transverse Range; Santa Susana Mountains, crest of the mountains at head of Salt Creek, 6.5 km SW of Stevenson Ranch 927 Comment
  UCR238100  Orobanche fasciculata Mark A. Elvin, Cathleen Weigand 2003-5-22 2902 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR238101  Arctostaphylos glauca Mark A. Elvin, Cathleen Weigand 2003-5-22 2899 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR238102  Navarretia atractyloides Mark A. Elvin 2003-6-30 2960 Los Angeles Western Transverse Range; Santa Clarita Valley Area, Newhall Ranch, west side of Grapevine Mesa, 4 km SW (216 deg. ) of intersection of I-5 Fwy and Hwy 126 366 Comment
  UCR238103  Calochortus plummerae Mark A. Elvin, Margie P. Elvin, K. Elvin, A. Elvin 2003-7-1 2964 Los Angeles Western Transverse Range; Santa Susana Mountains, crest of the mountains at head of Salt Creek, 6.5 km SW of Stevenson Ranch 927 Comment
  UCR238104  Calochortus weedii var. vestus Mark A. Elvin, Cathleen Weigand 2003-5-22 2897 Los Angeles Western Transverse Range; Santa Susana Mtns., crest of mountains at head of Salt Canyon, Newhall Ranch 915 Comment
  UCR238105  Eriodictyon crassifolium var. nigrescens Mark A. Elvin, Julie M. Vanderwier 2002-5-9 2017 Los Angeles NE end of Santa Susana Mtns., Newhall Ranch, near entrance of Magic Mountain amusement park 351 Comment
  UCR238106  Lupinus formosus Mark A. Elvin, Julie M. Vanderwier 2002-5-7 2008 Los Angeles Western Transverse Range, Newhall Ranch, Magic Mountain, in agricultural fields east of amusement park and west if I-5 Fwy 351 Comment
  UCR238128  Aesculus californica Mark A. Elvin, Brock Ortega 2002-4-18 1924 Los Angeles Hacienda Heights 274 Comment
  UCR249631  Wigandia urens var. caracasana Mark A. Elvin 2012-7-18 s.n. Los Angeles Southern Coastal, Westwood, north side of Sunset Blvd, c. 300 m north of Hwy I-405, across from S Thurston Ave 159 Comment
  UCR249910  Platanus racemosa Mark A. Elvin, Tarja Sagar 2013-5-31 7153 Los Angeles Western Transverse Ranges: Santa Monica Mountains, along Malibu Canyon Road south of tunnel, in main drainage and tributaries 168 Comment
  UCR250554  Rhus ovata Mark A. Elvin, Tarja Sagar 2013-5-31 7152 Los Angeles Western Transverse Ranges: Santa Monica Mountains, along Malibu Canyon Road south of tunnel, in main drainage and tributaries 168 Comment
  UCR263659  Thysanocarpus conchuliferus Mark A. Elvin, Tarja Sagar 2009-3-27 6212 Los Angeles Transverse Ranges: Santa Monica Mountains, Semler Open Space, along Pentachaeta Trail, south of Lidnero Canyon Drive and Triunfo Canyon Road 373 Comment
  UCR263660  Thysanocarpus laciniatus Mark A. Elvin, Tarja Sagar 2009-3-27 6213 Los Angeles Transverse Ranges: Santa Monica Mountains, Semler Open Space, along Pentachaeta Trail, south of Lidnero Canyon Drive and Triunfo Canyon Road 373 Comment
  UCR263661  Thysanocarpus curvipes Mark A. Elvin, Tarja Sagar 2009-3-27 6214 Los Angeles Transverse Ranges: Santa Monica Mountains, Semler Open Space, along Pentachaeta Trail, south of Lidnero Canyon Drive and Triunfo Canyon Road 373 Comment
  UCR263662  Thysanocarpus conchuliferus Mark A. Elvin, Tarja Sagar 2009-3-27 6215 Los Angeles Transverse Ranges: Santa Monica Mountains, Malibu Creek State Park, Lost Cabin Trail near east end of trail, c. 150 m west of cabin site 244 Comment
  UCR263663  Thysanocarpus curvipes Mark A. Elvin, Tarja Sagar 2009-3-27 6217 Los Angeles Transverse Ranges: Santa Monica Mountains, Malibu Creek State Park, Lost Cabin Trail near east end of trail, c. 150 m west of cabin site 244 Comment
  UCR265159  Thysanocarpus laciniatus Mark A. Elvin, Tarja Sagar 2009-3-27 6216 Los Angeles Transverse Ranges: Santa Monica Mountains, Malibu Creek State Park, Lost Cabin Trail near east end of trail, c. 150 m west of cabin site 244 Comment
  HSC101377  Chorizanthe parryi var. fernandina Mark A. Elvin, Cathleen Weigand 2003-4-8 2453 Los Angeles Santa Clarita Valley: Newhall Ranch Commerce Center, confluence of Hasley Canyon and Castaic Creek, N of Hwy 126 319 Comment
  IRVC26204  Linanthus androsaceus Mark A. Elvin, M. S. Enright, Tricia Wotipka 2003-5-24 2917 Los Angeles Newhall Ranch, head of Salt Creek, northern crest of Santa Susana Mtns. Santa Susana Mtns. 915 Comment
  IRVC26377  Lobularia maritima Mark A. Elvin, Kim Marsden 2003-8-8 2975 Los Angeles Newhall Ranch, Santa Clara River, ca 100 m east of the Ventura Co. line Santa Clarita Valley 290 Comment
  IRVC26378  Phalaris aquatica Mark A. Elvin, Kim Marsden 2003-8-8 2976 Los Angeles Newhall Ranch, Santa Clara River, ca 100 m east of the Ventura Co. line Santa Clarita Valley 290 Comment
  IRVC26379  Eucalyptus camaldulensis Mark A. Elvin, Kim Marsden 2003-8-8 2979 Los Angeles Newhall Ranch, Santa Clara River, ca 100 m east of the Ventura Co. line Santa Clarita Valley 290 Comment
  IRVC27019  Plantago major Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-13 2994 Los Angeles S side of the Santa Clara River, ca 200 m upstream from the mouth of Potrero Creek Santa Clarita Valley 274 Comment
  IRVC27020  Pulicaria paludosa Mark A. Elvin, Tricia Wotipka, Scott Boczkiewicz 2003-8-13 2995 Los Angeles S side of the Santa Clara River, ca 200 m upstream from the mouth of Potrero Creek Santa Clarita Valley 274 Comment
  IRVC27959  Ceanothus tomentosus Mark A. Elvin 2003-8-13 2987 Los Angeles Newhall Ranch, Santa Clara River at the mouth of Long Canyon Santa Clarita Valley 274 Comment
  IRVC28627  Sisymbrium altissimum Mark A. Elvin, Cathleen Weigand 2003-5-22 2895 Los Angeles crest of mountains at head of Salt Canyon, Newhall Ranch Santa Susana Mtns. 915 Comment
  IRVC28633  Eriogonum Mark A. Elvin 2003-6-19 2949 Los Angeles hills west of San Martinez Grande Canyon and north of CA Hwy 126, Newhall Ranch Western Transverse Range 366 Comment
  IRVC28843  Brassica tournefortii Mark A. Elvin, Cathleen Weigand 2003-4-8 2467 Los Angeles Newhall Ranch Commerce Center, ridge between Hasley and Castaic Creeks Santa Clarita Valley 351 Comment
  IRVC28847  Piptatherum miliaceum Mark A. Elvin, Cathleen Weigand 2003-4-8 2457 Los Angeles Newhall Ranch, flats S of confluence of Hasley Canyon with Castaic Creek Santa Clarita Valley 297 Comment
  IRVC28852  Vicia villosa Mark A. Elvin, Cathleen Weigand 2003-4-7 2444 Los Angeles Newhall Ranch Commerce Center, S of Castaic Creek, N of SR 126 Santa Clarita Valley 297 Comment
  IRVC28854  Bromus madritensis subsp. rubens Mark A. Elvin, Cathleen Weigand 2003-4-7 2440 Los Angeles Newhall Ranch Commerce Center, S of Castaic Creek, N of SR 126 Santa Clarita Valley 297 Comment
  IRVC29660  Baccharis sarothroides Mark A. Elvin 2003-6-12 2947 Los Angeles Newhall Ranch, S of Magic Mountain Amusement Park, W of The Old Road Santa Clarita Valley 366 Comment
  LA210184  Wigandia urens var. caracasana Mark A. Elvin; 2012-7-18 s.n. Los Angeles University of California, Los Angeles, Westwood; N side of Sunset Blvd, ca. 300 m N of I 405, across from S Thurston Ave 158 Comment
  RSA0063091  Heuchera elegans Mark Elvin, Anne Marie Ruff 1996-8-1 294 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road (gate). South side of road on curve. Comment
  RSA0076375  Heuchera elegans Mark Elvin, Orlando Mistretta 1995-9-15 100 Los Angeles Glendora Saddle up trail to Lookout Mountain. 1494 Comment
  RSA678431  Abronia umbellata Mark A. Elvin, Orlando Mistretta 1996-3-22 115 Los Angeles San Clemente Island. Comment
  RSA678460  Adiantum jordanii Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 160 Los Angeles San Clemente Island. Steep N slopes. Comment
  RSA678467  Pholistoma auritum Mark A. Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 164 Los Angeles San Clemente Island. Loamy bench on south side of canyon. 274 Comment
  RSA678689  Dryopteris arguta Mark Elvin, Orlando Mistretta 1996-3-24 137 Los Angeles Eagle Canyon, San Clemente Island. 244 Comment
  RSA678691  Pholistoma Mark A. Elvin, Orlando Mistretta 1996-3-24 134 Los Angeles San Clemente Island. Eagle Canyon. Comment
  RSA678694  Adiantum jordanii Mark Elvin, Orlando Mistretta 1996-3-24 136 Los Angeles Eagle Canyon, San Clemente Island. 244 Comment
  RSA678884  Marah Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 158 A Los Angeles San Clemente Island. Second canyon S of Bryce Canyon, on loamy banks along cyn floor. Comment
  RSA679283  Lotus crassifolius var. crassifolius Mark Elvin, Anne Marie Ruff 1996-8-1 305 Los Angeles San Gabriel Mtns. Angeles National Forest. Glendora Ridge Road. Mile 7.4. On steep cut on S side road. ~ 50' high. Comment
  RSA679307  Trifolium Mark Elvin, Sarah Crockett 1997-3-17 373 Los Angeles Santa Catalina Island, Cape Canyon. W side of canyon. Comment
  RSA784687  Trifolium willdenovii Mark A. Elvin 1997-5-7 395 Los Angeles San Clemente Island, E of Horse Beach Canyon, near main road. 400 Comment
  SBBG119986  Deinandra fasciculata M. A. Elvin 2003-6-12 2944 Los Angeles Newhall Ranch, S of Magic Mtn Amusement Park, W of the The Old Rd; Santa Clarita Valley 366 Comment
  SBBG128822  Atriplex suberecta M. A. Elvin, M. S. Enright 2002-7-22 2110 Los Angeles Newhall Ranch, Salt Crk 274 Comment
  SD232278  Abronia umbellata Mark Elvin, Orlando Mistretta 1996-3-22 115 Los Angeles Channel Islands; San Clemente Island: San Clemente Island Coastal Strand/Dunes. Comment
  SEINET6078263  Berberis nevinii Mark Elvin, Wall, M. 1997-1 Los Angeles Comment
  SEINET7856417  Eriogonum gracile var. gracile M. A. Elvin 2003-8-8 2970 A Los Angeles NE end of Santa Susana Mtns, Val Verde 7.5' Q. 304 Comment
  SEINET7862096  Eriogonum angulosum M. A. Elvin 2003-8-8 2970 B Los Angeles Santa Clarita Valley. 305 Comment
  UC1929458  Hazardia cana Mark Elvin, Orlando Mistretta 1996-3-24 138 Los Angeles Channel Islands; San Clemente Island: Eagle Canyon. Comment
  UC1929460  Castilleja grisea Mark Elvin, Orlando Mistretta 1996-3-24 133 Los Angeles Channel Islands; San Clemente Island: Eagle Canyon. Comment
  UC1929798  Astragalus miguelensis Mark Elvin, Orlando Mistretta 1996-3-22 114 Los Angeles Channel Islands; San Clemente Island: San Clemente Island. Coastal strand/dunes. Comment
  UC1929799  Heuchera caespitosa Mark Elvin, Orlando Mistretta 1995-9-15 100 Los Angeles Transverse Ranges; San Gabriel Mountains region: Glendora Saddle up trail to Lookout Mountain. Comment
  UC1930145  Adiantum jordanii Mark Elvin, Dylan Hannon, Gery Allan, Curtis Clark, Steve Burckhalter 1996-4-20 160 Los Angeles Channel Islands; San Clemente Island: Steep N. slopes. Comment
  UC1930146  Adiantum jordanii Mark Elvin, Orlando Mistretta 1996-3-24 136 Los Angeles Channel Islands; San Clemente Island: Eagle Canyon. Comment
  UC1930147  Dryopteris arguta Mark Elvin, Orlando Mistretta 1996-3-24 137 Los Angeles Channel Islands; San Clemente Island: Eagle Canyon. Comment
  UC1930167  Abronia umbellata Mark Elvin, Orlando Mistretta 1996-3-22 115 Los Angeles Channel Islands; San Clemente Island: San Clemente Island. Coastal strand/dunes. Comment



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