35.17558 35.27558 -120.82659 -120.72659 UC/JEPS: Consortium Search Results
Search Results — 759 specimen records retrieved (759 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC54817  Abronia maritima R. W. Summers 1883-6-1 San Luis Obispo Avila sea-beach Sand Hills, Avila Comment
  UC1071640  Acer macrophyllum H. C. Lee 1936-4-6 551 San Luis Obispo Head of Davis Canyon San Luis Obispo National Forest, Port San Luis Quad. Comment
  UCR115558  Achyrachaena mollis George K. Helmkamp, E. A. Helmkamp 2000-4-20 5417 San Luis Obispo Central Coast, Irish Hills, north of Avila Beach, See Canyon, 7.4 mi south of Los Osos Valley Road 213 Comment
  UCD103818  Acmispon americanus var. americanus G. K. Helmkamp; E. A. Helmkamp 2000-9-2 5964 San Luis Obispo San Luis Obispo County: Iris Hills: Profumo Canyon, 2.2 mi W of Los Osos Valley Rd. 137 Comment
  UCD103762  Acmispon junceus G. Helmkamp; E. Helmkamp 1995-6-20 95 2 19 San Luis Obispo San Luis Obispo County: Bear Creek Ranch, SE of Los Osos. 6 mi. SE of Los Osos on Clark Valley Road. 396 Comment
  SBBG34832  Acmispon maritimus var. maritimus Mrs. R. W. Summers 1885-6-4 San Luis Obispo Avila Comment
  OBI75243  Acmispon wrangelianus David J. Keil 2011-5-12 31022 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 333 Comment
  CAS-BOT-BC391672  Actaea rubra R. F. Hoover 1963-5-4 8559 San Luis Obispo Upper Coon Creek, San Luis Range Comment
  UCR103802  Adiantum jordanii George K. Helmkamp 1997-3-8 1455 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  UCR161304  Adiantum jordanii George K. Helmkamp, E. A. Helmkamp 2005-3-9 9101 San Luis Obispo Central Coast Hills, Irish Hills; See Canyon, 4.4 mi N of San Luis Bay Drive 186 Comment
  OBI13690  Agastache urticifolia Robert F. Hoover 1946-8-3 6257 San Luis Obispo Upper Coon Crk, San Luis Range Comment
  RSA42987  Agastache urticifolia Robert F. Hoover 1946-8-3 6257 San Luis Obispo Upper Coon Creek, San Luis Range. Comment
  CAS-BOT-BC29367  Ageratina adenophora Ernest C. Twisselmann 1959-4-10 5030 San Luis Obispo Irish Hills: See Canyon 106 Comment
  CAS-BOT-BC29368  Ageratina adenophora Ernest C. Twisselmann 1959-4-10 5030 San Luis Obispo Irish Hills: See Canyon 106 Comment
  JEPS26360  Ageratina adenophora Ernest C. Twisselmann 1959-4-10 5030 San Luis Obispo see canyon Irish Hills 106 Comment
  OBI72012  Ageratina adenophora Michael Walgren 2010-2-1 71 San Luis Obispo Irish Hills, Montana de Oro State Park. New property acquisition known as the 160 acre "Basseri" property at 4840 See Cyn Rd, approx 8 mi from Los Osos Valley Rd and 0.5 mi from jctn with Perfumo Cyn Rd. Inland portion of property on inland side of See Cyn rd. In un-nmaed drainage N of home site 335 Comment
  RSA643444  Ageratina adenophora R. D. Goeden, D. W. Ricker 1972-5-2 s.n. San Luis Obispo See Canyon Road, 4 miles north of San Luis Bay Rd., SW of San Luis Obispo 183 Comment
  UCR109778  Ageratina adenophora R. D. Goeden, Don W. Ricker 1972-5-2 s.n. San Luis Obispo Irish Hills, See Canyon Road, 4 miles north of San Luis Bay Rd., SW of San Luis Obispo 183 Comment
  CAS-BOT-BC29679  Agoseris grandiflora var. grandiflora Alice Eastwood 1926-5-3 13795 San Luis Obispo Avila Comment
  OBI17118  Agoseris grandiflora var. grandiflora Robert F. Hoover 1946-8-3 6255 San Luis Obispo Upper Coon crk Comment
  OBI75251  Agoseris grandiflora var. grandiflora David J. Keil 2011-5-12 31014 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 354 Comment
  OBI2571  Agrostis exarata Larry E. Brown 1971-7-8 2062 San Luis Obispo In Prefumo Cyn near San Luis Obispo Comment
  UCD52074  Agrostis exarata Larry E. Brown 1971-7-8 2062 San Luis Obispo San Luis Obispo County: in Perfumo Canyon near San Luis Obispo. Comment
  JEPS100285  Agrostis hooveri John M. Miller 1993-7-8 1430 San Luis Obispo Devils Ridge to upper Coon Creek road Irish Hills, PG&E Diablo Canyon Power Plant 365 Comment
  OBI79712  Agrostis pallens David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31372 San Luis Obispo San Luis Range (Irish Hills). Road from See Canyon to Davis Peak. 447 Comment
  OBI75249  Allium haematochiton David J. Keil 2011-5-12 31016 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 345 Comment
  OBI73654  Amaryllis belladonna David J. Keil 2010-8-30 30929 San Luis Obispo Upper Prefumo Canyon Road, ca. 4.2 road miles from junction with Los Osos Valley Road, ca. 0.8 road miles from Prefumo-See Canyon summit 480 Comment
  UCR118348  Amaryllis belladonna George K. Helmkamp, E. A. Helmkamp 2000-9-2 5973 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road 137 Comment
  RSA130663  Ambrosia chamissonis R. W. Summers 1884-6-12 s.n. San Luis Obispo Avila Comment
  UC52341  Ambrosia chamissonis Rev. R. W. Summers 1884-6-4 432 San Luis Obispo sand beach Avila Comment
  UC547733 Image available Amelanchier pallida I. J. Condit 1808-3-7 San Luis Obispo Avila Comment
Read comments
Jan 2 2019
  SD185108  Ammi majus G. K. Helmkamp, E. A. Helmkamp 1995-6-20 95 2 13 San Luis Obispo Bear Creek Ranch, 6.0 miles southeast of Los Osos on Clark Valley Road. 399 Comment
  UCR166284  Ammi majus George K. Helmkamp, E. A. Helmkamp 1995-6-20 95-2- 13 San Luis Obispo Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road 400 Comment
  OBI78836  Amsinckia intermedia Michael Walgren 2014-4-30 403 San Luis Obispo San Luis Range along the PG&E access road above Wild Cherry Canyon 359 Comment
  OBI75255  Amsinckia menziesii David J. Keil 2011-5-12 31010 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 354 Comment
  OBI17090  Anaphalis margaritacea Robert F. Hoover 1946-8-3 6258 San Luis Obispo Upper Coon Crk, San Luis Range Comment
  UCR118375  Anthemis cotula George K. Helmkamp, E. A. Helmkamp 1998-7-1 4250 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road 244 Comment
  UCR25006  Aquilegia eximia George K. Helmkamp 1981-8-7 s.n. San Luis Obispo Central Coast, north end of See Canyon in the Irish Hills, near Los Osos Valley 213 Comment
  CAS-BOT-BC27029  Aquilegia fontinalis Alice Eastwood; John Thomas Howell 1938-6-14 5934 San Luis Obispo Prefumo Canyon Comment
  CAS-BOT-BC27030  Aquilegia fontinalis Alice Eastwood; John Thomas Howell 1938-6-14 5934 San Luis Obispo Prefumo Canyon Comment
  CAS-BOT-BC27031  Aquilegia fontinalis Alice Eastwood; John Thomas Howell 1938-6-14 5934 San Luis Obispo Prefumo Canyon Comment
  GH38116  Aquilegia fontinalis A. Eastwood & J. T. Howell 1938-6-14 5934 Unknown Prefumo Canyon Comment
  NY353238  Aquilegia fontinalis A. Eastwood 1938-6-14 5934 San Luis Obispo Prefumo Canyon Comment
  CAS-BOT-BC23573  Arctostaphylos crustacea R. F. Hoover 1963-5-4 8556 San Luis Obispo Upper Coon Creek, San Luis Range Comment
  CAS-BOT-BC23574  Arctostaphylos crustacea R. F. Hoover 1963-5-4 8556 San Luis Obispo Upper Coon Creek, San Luis Range Comment
  OBI14753  Arctostaphylos crustacea Robert F. Hoover 1963-5-4 8556 San Luis Obispo Upper Coon crk Comment
  OBI14754  Arctostaphylos crustacea Robert F. Hoover 1963-4-13 8551 San Luis Obispo Upper Coon Crk, San Luis range, on summit of hill Comment
  OBI14755  Arctostaphylos crustacea Robert F. Hoover 1963-5-4 8556 San Luis Obispo Upper Coon crk Comment
  OBI79709  Arctostaphylos crustacea David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31370 San Luis Obispo San Luis Range (Irish Hills). Road from See Canyon to Davis Peak. 447 Comment
  OBI79802  Arctostaphylos crustacea David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31369 San Luis Obispo San Luis Range (Irish Hills). Road from See Canyon to Davis Peak. 447 Comment
  OBI66788  Arctostaphylos crustacea subsp. crustacea Austin P. Griffiths 1985-3-16 s.n. San Luis Obispo Hibbard Nature Preserve. First overlook, 1.8 mi in from road Comment
  SBBG119459  Arctostaphylos crustacea subsp. crustacea C. Bornstein, E. Collins 2006-9-21 San Luis Obispo See Cyn Rd, ca. 3 mi NW of Davis Cyn Rd 228 Comment
  SBBG41079  Arctostaphylos crustacea subsp. crustacea R. F. Hoover 1963-4-13 8551 San Luis Obispo upper Coon Crk Comment
  UCR266051  Arctostaphylos crustacea subsp. crustacea David J. Keil, Mike Walgren, Sally Krenn 2012-6-21 31369 San Luis Obispo Central Coast, San Luis Range, Irish Hills. Road from See Canyon to Davis Peak 447 Comment
  UC1389142  Arctostaphylos cruzensis B. Bolt 1936-3-18 638 San Luis Obispo 4 mi se mouth of Osos Creek; Cayucos Quadrangle 243 Comment
Read comments
Dec 24 2016
  VVC2842  Arctostaphylos glandulosa var. cushingiana Tim Thomas, George Ross II & III 2014-4-23 6270 San Luis Obispo South Coast Range, Irish Hills, 0.2 miles below Glenrose Spring along Coon Ck. 277 Comment
  UCR103805  Arctostaphylos luciana George K. Helmkamp 1997-3-8 1445 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  CAS-BOT-BC44402  Arctostaphylos pechoensis R. F. Hoover 1946-8-3 6254 San Luis Obispo Upper Coon Creek, San Luis Range. Comment
  CAS-BOT-BC44410  Arctostaphylos pechoensis R. F. Hoover 1946-8-3 6254 San Luis Obispo Upper Coon Creek, San Luis Range Comment
  CHSC45798  Arctostaphylos pechoensis L. P. Janeway; Lela Burdett, Bernard Burdett 1988-12-30 3165 San Luis Obispo In See Cyn near pass into Coon Creek; along See Cyn Rd 3.7 mi W of Davis Cyn Rd. 320 Comment
  JEPS101949  Arctostaphylos pechoensis Glenn Clifton 1992-8-22 27246 San Luis Obispo Irish Hills, PG& E Diablo Canyon Nuclear Power Plant facility site, ridge just South of Diablo Canyon 243 Comment
  JEPS44845  Arctostaphylos pechoensis W. R. Dudley 1902-4-5 San Luis Obispo head of Wild Cherry Canyon Pecho Mts.; Pecho Mts., head of Wild Cherry Canyon, San Luis Obispo Co. Comment
  OBI14565  Arctostaphylos pechoensis Robert F. Hoover 1946-8-3 6254 San Luis Obispo Upper coon crk, San Luis range Comment
  OBI26205  Arctostaphylos pechoensis Lyda W. Edge 1974-6-10 446 San Luis Obispo Near summit of See Cyn rd Comment
  OBI66776  Arctostaphylos pechoensis Austin P. Griffiths 1985-3-16 s.n. San Luis Obispo Hibbard Nature Preserve. First overlook, 1.8 mi in from road Comment
  OBI75081  Arctostaphylos pechoensis Michael Walgren 2011-2-25 222 San Luis Obispo Irish Hills, Montana de Oro State Park. New property acquisition known as the 160 acre "Basseri" property at 4840 See Canyon rd, approx 8 mi from Los Osos Valley rd and 0.5 mi from jctn with Perfumo Cyn rd. Inland portion of property on inland side of See cyn rd. near a home 292 Comment
  OBI75101  Arctostaphylos pechoensis Michael Walgren 2011-2-25 242 San Luis Obispo Irish HIlls, Montana de Oro State Park. New property acquisition known as the "Andre" property just S of where Coon crk hits Perfumo Cyn rd, near the jctn with See Cyn rd 330 Comment
  OBI82352  Arctostaphylos pechoensis David J. Keil, Matt Ritter, Jenn Yost, Brett Hall, et al. 2016-1-1 33441 -B San Luis Obispo Upper See Canyon 415 Comment
  OBI82354  Arctostaphylos pechoensis David J. Keil, Matt Ritter, Jenn Yost, Brett Hall, et al. 2016-1-1 33441 -A San Luis Obispo Upper See Canyon 415 Comment
  OBI82391  Arctostaphylos pechoensis David J. Keil, with Matt Ritter, Jenn Yost, Brett Hall, et al. 2016-1-1 33441 -C San Luis Obispo Upper See Canyon Comment
  RSA122342  Arctostaphylos pechoensis A. E. Wieslander 1936-5-11 635 San Luis Obispo Head of Wild Cherry Canyon 457 Comment
  RSA233125  Arctostaphylos pechoensis W. R. Dudley 1912-4-5 s.n. San Luis Obispo Pecho Mountains head of Wild Cherry Canyon Comment
  RSA43175  Arctostaphylos pechoensis Robert F. Hoover 1946-12-15 6576 San Luis Obispo Upper Coon Creek, San Luis Range. Comment
  SBBG114649  Arctostaphylos pechoensis D. Wilken with E. Painter 2002-4-1 15886 San Luis Obispo See Cyn, ca. 1.3 map km SE of jct with Prefumo Cyn Rd at Coon Crk, ca. 0.9 air km SSE of head of See Cyn 250 Comment
  SBBG119458  Arctostaphylos pechoensis C. Bornstein, E. Collins 2006-9-21 San Luis Obispo See Cyn Rd, ca. 0.8 mi NW of jct with Davis Cyn Rd 68 Comment
  SBBG48525  Arctostaphylos pechoensis L. W. Edge 1974-6-10 446 San Luis Obispo near summit, See Cyn Rd Comment
  SBBG48526  Arctostaphylos pechoensis L. W. Edge 1974-6-10 448 San Luis Obispo near summit, See Cyn Rd Comment
  SBBG48528  Arctostaphylos pechoensis L. W. Edge 1974-6-10 447 San Luis Obispo near summit, See Cyn Rd Comment
  UC511464  Arctostaphylos pechoensis W. R. Dudley 1902-4-5 San Luis Obispo head of canyon Pecho Mts., Wild Cherry Canyon Comment
  UC511465  Arctostaphylos pechoensis W. R. Dudley 1902-4-5 San Luis Obispo head of canyon Pecho Mts., Wild Cherry Canyon Comment
  UCR58380  Arctostaphylos pechoensis Walter Knight, I. Knight 1980-6-14 3750 San Luis Obispo Original from Wild Cherry Canyon (Now in Tilden Regional Park Botanic Garden) Comment
  UCSB37989  Arctostaphylos pechoensis Edge, Lyda 1974-6-10 San Luis Obispo Near summit of See Canyon Road Comment
  UCR25455  Arctostaphylos pechoensis var. viridissima Michael J. Kelly 1975-3-27 045 San Luis Obispo Central Coast, left side of See Canyon Road, 4 mi from San Luis Bay Drive off of Hwy 101 183 Comment
  UC1120105  Arctostaphylos tomentosa subsp. crustacea A. E. Wieslander 1935-2-24 531 San Luis Obispo head of canyon Port San Luis Quadrangle, Davis Canyon Comment
  UC1120113  Arctostaphylos tomentosa subsp. crustacea A. E. Wieslander 1935-2-24 529 San Luis Obispo head of canyon Port San Luis Quadrangle, Davis Canyon Comment
  CDA11170  Arctostaphylos tomentosa subsp. daciticola G. F. Hrusa 1987-6-16 5418 San Luis Obispo Irish Hills; N slope of Buchon Ridge at S end of Montana de Oro State park. Comment
  RSA660609  Arctostaphylos tomentosa subsp. tomentosa Austin P. Griffiths 1985-3-16 s.n. San Luis Obispo Hibbard Nature Preserve. At overlook, 1.8 mi. in from gate. Comment
  UCD53554  Arctostaphylos viridissima A. E. Wieslander 1936-5-11 636 San Luis Obispo Head of Wild Cherry Canyon. 457 Comment
  UCD53555  Arctostaphylos viridissima A. E. Wieslander 1936-5-11 634 San Luis Obispo Dudley type locality; head of Wild Cherry Canyon. 457 Comment
  RSA660361  Arctostaphylos wellsii Austin P. Griffiths 1985-3-16 s.n. San Luis Obispo Hibbard Nature Preserve, immediate across trail NW of correl, 2.5 mi. from gate. Comment
  UCD51082  Arctostaphylos wellsii Austin P. Griffiths 1985-3-16 s.n. San Luis Obispo Hibbard Nature Preserve. Immediate across trail NW of corral, 2.5 mi from gate. Comment
  UCR134398  Arenaria douglasii George K. Helmkamp, E. A. Helmkamp 2001-4-29 6592 San Luis Obispo Irish Hills, Prefumo Cyn Rd., 2.8 miles west of Los Osos Valley Rd., SW of San Luis Obispo 91 Comment
  CAS-BOT-BC84877  Artemisia californica Alice Eastwood 1926-5-3 13769 San Luis Obispo Avila Comment
  UCR118338  Artemisia douglasiana George K. Helmkamp, E. A. Helmkamp 2000-9-2 5965 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road 137 Comment
  UCR118362  Artemisia douglasiana George K. Helmkamp, E. A. Helmkamp 1998-6-30 4225 San Luis Obispo Central Coast, Irish Hills, SW of San Luis Obispo; Prefumo Cyn 2.2 mi SW of Los Osos Valley Rd. 137 Comment
  RSA576137  Asclepias fascicularis F. H. Elmore 1933-8-4 355 San Luis Obispo Avila Comment
  UCR118346  Aster radulinus George K. Helmkamp, E. A. Helmkamp 2000-9-2 5972 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road 137 Comment
  SD129793  Astragalus curtipes Wayne P. Armstrong 1988-3-31 1290 San Luis Obispo Near summit of See Canyon Road. 305 Comment
  RSA667362  Astragalus trichopodus var. lonchus George K. Helmkamp 2001-4-29 6576 San Luis Obispo Irish Hills: Calrk Valley Rd., 3.8 mi S f Los Osos Valley Rd (E of Los Osos). 213 Comment
  SEINET2060355 Image available Astragalus trichopodus var. lonchus George Helmkamp 1989-4-17 San Luis Obispo At the crest of Prefumo Canyon Rd., Irish Hills 365 Comment
  UCR161362  Astragalus trichopodus var. phoxus George K. Helmkamp, E. A. Helmkamp 2005-3-8 9080 San Luis Obispo Central Coast Hills., Irish Hills; crest of Prefumo Canyon Road, 5.2 mi west of Los Osos Valley Road 409 Comment
  UCD105452  Astragalus trichopodus var. trichopodus G. K. Helmkamp; E. A. Helmkamp 2000-4-20 5408 San Luis Obispo San Luis Obispo County: Central Coast: Road crest between See Cyn. Rd. and Prefumo Cyn Rd. (SW of San Luis Obispo). 320 Comment
  UCR115586  Astragalus trichopodus var. trichopodus George K. Helmkamp, E. A. Helmkamp 2000-4-20 5408 San Luis Obispo Central Coast, road crest between See Canyon Road and Prefumo Canyon Road, SW of San Luis Obispo 320 Comment
  OBI82559  Atriplex leucophylla David J. Keil 2015-8-10 33340 San Luis Obispo Avila Beach 1 Comment
  RSA696211  Atriplex leucophylla Keith E. Hoffmaster 1935-6-28 s.n. San Luis Obispo Avila Beach Comment
  SD264807  Atriplex leucophylla David Keil 2015-8-10 33340 San Luis Obispo Avila Beach. San Luis Obispo Creek estuary. 0 Comment
  UCR161695  Avena fatua George K. Helmkamp, E. A. Helmkamp 2005-3-8 9055 San Luis Obispo Coastal Hills, Prefumo Canyon, north side of Irish Hills; 2.2 mi west of Los Osos Valley Road 122 Comment
  CAS-BOT-BC98686  Baccharis douglasii R. F. Hoover 1946-8-3 6261 c San Luis Obispo Perfumo Canyon, San Luis Range Comment
  OBI16981  Baccharis glutinosa Robert F. Hoover 1946-8-3 6261 San Luis Obispo Perfumo [Prefumo] Cyn, San Luis Range Comment
  UC1285127  Baccharis glutinosa R. F. Hoover 1946-8-3 6261 San Luis Obispo San Luis Range, Perfumo Canyon Comment
  UCR39142  Bolboschoenus glaucus David J. Keil 1982-7-26 16311 San Luis Obispo Central Coast, San Luis Creek adjacent to San Luis Obispo sewage treatment plant Comment
  OBI83656  Bowlesia incana David J. Keil, Travis Barrett 2016-3-23 33848 San Luis Obispo Southern foothills of San Luis Range. Wild Cherry Ranch W of Avila Beach. Survey area 10 120 Comment
  UCR118947  Briza maxima George K. Helmkamp, E. A. Helmkamp 1998-6-30 4222 San Luis Obispo Central Coast, Irish Hills, SW of San Luis Obispo; Prefumo Cyn 2.2 mi SW of Los Osos Valley Rd. 137 Comment
  OBI75257  Bromus David J. Keil 2011-5-12 31008 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 304 Comment
  OBI80010  Bromus David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31371 San Luis Obispo San Luis Range (Irish Hills). Road from See Canyon to Davis Peak. 447 Comment
  OBI80002  Bromus carinatus David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31383 San Luis Obispo San Luis Range (Irish Hills). Hibberd Preserve 399 Comment
  UCR161318  Bromus carinatus George K. Helmkamp, E. A. Helmkamp 2005-3-8 9049 San Luis Obispo Coastal Hills, Prefumo Canyon, north side of Irish Hills; 2.2 mi west of Los Osos Valley Road 122 Comment
  OBI2590  Bromus hordeaceus Larry E. Brown 1971-4-1 1923 San Luis Obispo Perfumo Cyn near San Luis Obispo Comment
  UCR266651  Bromus pseudolaevipes David J. Keil 2001-5-8 29424 San Luis Obispo Central Coast/South Coast Range, Prefumo Canyon, c. 2.5 mi from Los Osos Valley Road along Prefumo Canyon Road 183 Comment
  OBI2623  Bromus sitchensis Larry E. Brown 1971-4-4 1924 San Luis Obispo In Perfumo Cyn near San Luis Obispo Comment
  UCR161289  Calandrinia ciliata George K. Helmkamp, E. A. Helmkamp 2005-3-8 9076 San Luis Obispo Central Coast Hills., Irish Hills; crest of Prefumo Canyon Road, 5.2 mi west of Los Osos Valley Road 409 Comment
  OBI75250  Calochortus argillosus David J. Keil 2011-5-12 31015 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 345 Comment
  OBI79296  Calochortus argillosus David J. Keil 2013-6-6 31789 San Luis Obispo San Luis Range. Upper Prefumo Canyon Road below housing area 380 Comment
  OBI44954  Calochortus clavatus var. clavatus David J. Keil 1979-7-1 13122 San Luis Obispo Ridge between Prefumo and See Cyns, about 5 mi from jctn of Los Osos Valley rd and Prefumo Cyn rd Comment
  UC2013236  Calochortus clavatus var. clavatus David Keil 1979-7-1 13122 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  UCR118371  Calochortus clavatus var. clavatus George K. Helmkamp, E. A. Helmkamp 1998-7-1 4255 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road 244 Comment
  OBI44868  Calochortus obispoensis David J. Keil 1979-7-1 13124 San Luis Obispo Ridge between Prefumo and See Cyns, about 5 mi from jctn of Los Osos Valley rd and Prefumo Cyn rd Comment
  SBBG48487  Calochortus venustus L. W. Edge 1974-6-10 452 San Luis Obispo upper Prefumo Cyn Comment
  UCR118386  Calystegia macrostegia George K. Helmkamp, E. A. Helmkamp 1998-6-30 4221 San Luis Obispo Central Coast, Irish Hills, SW of San Luis Obispo; Prefumo Cyn 2.2 mi SW of Los Osos Valley Rd. 137 Comment
  CAS-BOT-BC221369  Calystegia macrostegia subsp. cyclostegia Alice Eastwood; John Thomas Howell 1938-6-14 5923 San Luis Obispo Prefumo Canyon Comment
  OBI15312  Calystegia macrostegia subsp. cyclostegia B. W. & T. W., T. W. 1967-4-4 s.n. San Luis Obispo Perfumo Canyon Comment
  RSA394775  Calystegia macrostegia subsp. cyclostegia F. H. Elmore 1933-8-4 350 San Luis Obispo Avila Comment
  SD148182  Calystegia macrostegia subsp. intermedia G. K. Helmkamp, E. A. Helmkamp 2001-4-29 6598 San Luis Obispo Profumo Canyon Road, 2.8 miles west of Los Osos Valley Road. 91 Comment
  UCR134404  Calystegia macrostegia subsp. intermedia George K. Helmkamp, E. A. Helmkamp 2001-4-29 6598 San Luis Obispo Irish Hills, Prefumo Cyn Rd., 2.8 miles west of Los Osos Valley Rd., SW of San Luis Obispo 91 Comment
  UCR161697  Calystegia macrostegia subsp. tenuifolia George K. Helmkamp, E. A. Helmkamp 2005-3-8 9058 San Luis Obispo Central Coast Hills, Prefumo Canyon, north side of Irish Hills; 3.0 mi west of Los Osos Valley Road 140 Comment
  UCR61741  Calystegia subacaulis George K. Helmkamp 1989-4-17 s.n. San Luis Obispo Irish Hills, at the crest of Prefumo Canyon Road 366 Comment
  OBI75245  Calystegia subacaulis subsp. episcopalis David J. Keil 2011-5-12 31020 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 333 Comment
  CAS-BOT-BC160306  Camissoniopsis cheiranthifolia subsp. cheiranthifolia R. F. Hoover 1964-6-10 9010 San Luis Obispo Avila Comment
  UC1122158  Camissoniopsis cheiranthifolia subsp. cheiranthifolia H. C. Lee 1936-3-25 534 San Luis Obispo Avila Arroyo Grande Quadrangle 1 Comment
  OBI4259  Cardamine californica Janice Jacobs 1970-2-22 10 San Luis Obispo In Perfumo Cyn along roadside Comment
  OBI77645  Cardamine californica Ed Zimmerman 1966-4-8 8 San Luis Obispo Perfumo Cyn Comment
  UCR103807  Cardamine californica George K. Helmkamp 1997-3-8 1450 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  UCR161301  Cardamine californica var. integrifolia George K. Helmkamp, E. A. Helmkamp 2005-3-9 9104 San Luis Obispo Central Coast Hills, Irish Hills; See Canyon, 4.4 mi N of San Luis Bay Drive 186 Comment
  RSA643443  Carduus pycnocephalus R. D. Goeden, D. W. Ricker 1972-5-2 s.n. San Luis Obispo See Canyon Road, 4 miles north of San Luis Bay Rd., SW of San Luis Obispo 183 Comment
  SD143581  Carduus pycnocephalus R. D. Goeden, D. W. Ricker 1972-5-2 San Luis Obispo Irish Hills, See Canyon Road, 4 miles north of San Luis Bay Rd., southwest of San Luis Obispo 182 Comment
  UCD85584  Carduus pycnocephalus Daryl Koutnik 1978-6-19 528 San Luis Obispo San Luis Obispo County: Prefumo Canyon. 243 Comment
  UCD85856  Carduus pycnocephalus R. D. Goeden; D. W. Ricker 1972-5-2 s.n. San Luis Obispo San Luis Obisbo County: Irish Hills: See Canyon Road, 4 miles north of San Luis Bay Rd., SW of San Luis Obisbo. 183 Comment
  UCR109779  Carduus pycnocephalus R. D. Goeden, Don W. Ricker 1972-5-2 s.n. San Luis Obispo Irish Hills, See Canyon Road, 4 miles north of San Luis Bay Rd., SW of San Luis Obispo 183 Comment
  OBI79599  Carex globosa David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31382 San Luis Obispo San Luis Range (Irish Hills). Hibberd Preserve 399 Comment
  UCR261870  Carex globosa Tim Thomas, George Ross II & III 2014-4-23 6269 San Luis Obispo South Coast Range, Irish Hills, 0.2 miles below Glenrose Spring along Coon Creek 277 Comment
  VVC2869  Carex globosa Tim Thomas, George Ross II & III 2014-4-23 6269 San Luis Obispo South Coast Range, Irish Hills, 0.2 miles below Glenrose Spring along Coon Ck. 277 Comment
  CAS-BOT-BC146579  Carex obispoensis Alice Eastwood; John Thomas Howell 1938-6-14 5931 San Luis Obispo Prefumo Canyon Comment
  GH424052  Carex obispoensis A. Eastwood & J. T. Howell 1938-6-14 5931 Unknown Prefumo Canyon Comment
  JEPS24100  Castilleja affinis subsp. affinis Ernest C. Twisselmann 1959-4-10 5029 San Luis Obispo See Canyon Irish Hills 106 Comment
  UCR134395  Castilleja affinis subsp. affinis George K. Helmkamp, E. A. Helmkamp 2001-4-29 6589 San Luis Obispo Irish Hills, Clark Valley Rd., 4.2 miles south of Los Osos Valley Rd, E of Los Osos 274 Comment
  OBI75248  Castilleja densiflora subsp. obispoensis David J. Keil 2011-5-12 31017 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 345 Comment
  SBBG46664  Castilleja densiflora subsp. obispoensis L. W. Edge 1973-4-9 267 San Luis Obispo near summit of Prefumo Cyn Rd Comment
  SD130339  Castilleja densiflora subsp. obispoensis George Helmkamp 1989-4-17 San Luis Obispo At the crest of Prefumo Canyon Road, Irish Hills 366 Comment
  UC1032395  Castilleja densiflora subsp. obispoensis C. M. Belshaw 1936-3-25 1775 San Luis Obispo 3.6 mi ene Valencia Peak; Cayucos Quad. 396 Comment
  UC454836  Castilleja densiflora subsp. obispoensis E. P. Unangst 1908-4-12 San Luis Obispo Perfumo Canyon Comment
  UCR103811  Castilleja foliolosa George K. Helmkamp 1997-3-8 1461 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  UCR104782  Castilleja foliolosa George K. Helmkamp 1997-3-8 1460 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  OBI70838  Caulanthus lasiophyllus David J. Keil 2009-4-21 30585 San Luis Obispo Prefumo Canyon Comment
  UC1071086  Ceanothus crassifolius N. French 1936-1-31 705 San Luis Obispo head of Davis Canyon Port San Luis quad 457 Comment
  A349200  Ceanothus cuneatus A. Eastwood & J. T. Howell 1938-6-14 5290 Unknown Prefumo Canyon Comment
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Aug 2 2013
  CAS-BOT-BC49005  Ceanothus cuneatus Alice Eastwood; John Thomas Howell 1938-6-14 5920 San Luis Obispo Prefumo Canyon Comment
  UCR97557  Ceanothus cuneatus George K. Helmkamp 1997-3-8 1444 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  SBBG46743  Ceanothus cuneatus var. ramulosus L. W. Edge 1973-4-9 271 San Luis Obispo near upper part of Prefumo Cyn Comment
  CAS-BOT-BC64330  Ceanothus griseus R. F. Hoover 1963-5-4 8558 San Luis Obispo Upper Coon Creek, San Luis Range. Comment
  UC569695  Ceanothus oliganthus var. sorediatus A. E. Wieslander 1935-2-24 532 San Luis Obispo Davis Canyon Port San Luis quad. 243 Comment
  CAS-BOT-BC50420  Ceanothus papillosus R. F. Hoover 1963-5-4 8555 San Luis Obispo Upper Coon Creek, San Luis Range Comment
  CAS-BOT-BC50423  Ceanothus papillosus R. F. Hoover 1963-5-4 8555 San Luis Obispo Upper Coon Creek, San Luis Range Comment
  CAS-BOT-BC50425  Ceanothus papillosus R. F. Hoover 1949-5-3 7656 San Luis Obispo Perfumo Canyon, San Luis Range Comment
  CAS-BOT-BC51236  Ceanothus papillosus Alice Eastwood 1939-4-18 18925 San Luis Obispo Perfumo Canyon Comment
  OBI10396  Ceanothus papillosus Robert F. Hoover 1963-5-4 8555 San Luis Obispo Upper Coon crk, San Luis Range Comment
  OBI75012  Ceanothus papillosus Michael Walgren 2011-1-28 195 San Luis Obispo Diablo Canyon Power Plant, on a firebreak near a ridge road above coon Creek near the boundary with Montana de Oro State Park 413 Comment
  UC1071214  Ceanothus papillosus B. Bolt 1936-3-13 623 San Luis Obispo 1/2 mi sw of mouth Sycamore Canyon; San Luis Obispo Quad., sw of mouth Sycamore Canyon Comment
  UC1276246  Ceanothus papillosus R. F. Hoover 1963-5-4 8555 San Luis Obispo Upper Coon Creek San Luis Range, Upper Coon Creek Comment
  UC1276291  Ceanothus papillosus R. F. Hoover 1949-5-3 7656 San Luis Obispo Perfumo Canyon San Luis Range, Perfumo Canyon Comment
  UC455335  Ceanothus papillosus California Polytechnic School Mar., 1905 48 San Luis Obispo Prefumo Canyon Comment
  CHSC79560  Ceanothus papillosus var. roweanus G. F. Hrusa; A. P. Griffiths 1987-5-3 5336 San Luis Obispo Central California. The Montana de Oro Region. On summit of Buchon Ridge immed. W of Coon Creek Cyn. 274 Comment
  OBI78701  Ceanothus spinosus Caylie Conley-Soon 2013-2-6 1 San Luis Obispo Perfumo Canyon Road, north side of road 2.2 miles from intersection with Los Osos Valley Road. 119 Comment
  UC1071376  Ceanothus spinosus C. M. Belshaw Apr 1936 1731 San Luis Obispo Davis Canyon San Luis Obispo Quad. Comment
  UC1071387  Ceanothus spinosus B. Bolt 1936-2-4 564 San Luis Obispo 1/2 mi s of mouth Sycamore Canyon; San Luis Obispo Quad. Comment
  UC455421  Ceanothus spinosus California Polytechnic School 1906-1 11 San Luis Obispo Prefumo Canyon Comment
  UCD102216  Ceanothus spinosus Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-3-29 s.n. San Luis Obispo San Luis Obispo County: S. Luis Obispo. Prefumo Canyon. Prefumo Canyon Road. 105 Comment
  UCR161306  Ceanothus spinosus George K. Helmkamp, E. A. Helmkamp 2005-3-8 9047 San Luis Obispo Coastal Hills, Prefumo Canyon, north side of Irish Hills; 2.2 mi west of Los Osos Valley Road 122 Comment
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Sep 27 2014
  OBI10504  Ceanothus thyrsiflorus var. griseus Robert F. Hoover 1963-5-4 8558 San Luis Obispo Upper Coon crk, San Luis Range Comment
  SBBG110053  Ceanothus thyrsiflorus var. griseus C. B. Hardham 1967-3-18 14382 San Luis Obispo Diablo Cyn Comment
  SD148254  Centaurea iberica G. K. Helmkamp, E. A. Helmkamp 2000-9-2 5971 San Luis Obispo Irish Hills; Profumo Canyon, 2.2 miles west of Los Osos Valley Road. 136 Comment
  UCR118345  Centaurea iberica George K. Helmkamp, E. A. Helmkamp 2000-9-2 5971 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road 137 Comment
  UCR118379  Centaurea iberica George K. Helmkamp, E. A. Helmkamp 1998-7-1 4244 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road 244 Comment
  UCR161288  Centaurea iberica George K. Helmkamp, E. A. Helmkamp 2005-3-8 9075 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 4.6 mi west of Los Osos Valley Road 316 Comment
  RSA659431  Centaurium davyi David J. Keil 1979-7-1 13127 San Luis Obispo Ridge between Prefumo and See Canyons. About five miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  UC456204  Centaurium davyi E. P. Unangst 1906-5-13 San Luis Obispo Perfumo Canyon Comment
  OBI20378  Cercocarpus betuloides David J. Keil 1979-4-28 s.n. San Luis Obispo Prefumo Cyn Comment
  UC453982  Cercocarpus betuloides var. betuloides E. P. Unangst 1908-4-12 San Luis Obispo Perfumo Canyon Comment
  OBI17203  Chenopodium murale Robert F. Hoover 1964-6-10 9011 San Luis Obispo Avila Comment
  OBI44864  Chlorogalum pomeridianum David J. Keil 1979-7-1 13130 San Luis Obispo ridge between prefumo and See cyns. About 5 mi from jctn of Los Osos Valley rd and Prefumo cyn Rd Comment
  UC2013305  Chlorogalum pomeridianum David Keil 1979-7-1 13130 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  RSA659433  Chlorogalum pomeridianum var. minus David J. Keil 1979-7-1 13130 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  UCD138446  Chlorogalum pomeridianum var. pomeridianum David Keil; Jill Bushakra 2001-6-14 29556 San Luis Obispo San Luis Obispo County: San Luis Range, between Prefumo Canyon and See Canyon. Comment
  UCD138447  Chlorogalum pomeridianum var. pomeridianum David Keil; Jill Bushakra 2001-6-14 29556 San Luis Obispo San Luis Obispo County: San Luis Range, between Prefumo Canyon and See Canyon. 800 Comment
  OBI75247  Chorizanthe breweri David J. Keil 2011-5-12 31018 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 353 Comment
  UCD99661  Chorizanthe breweri Daryl Koutnik 1978-6-19 524 San Luis Obispo San Luis Obispo County: Prefumo Canyon. 243 Comment
  UCR87844  Chorizanthe leptotheca George K. Helmkamp, E. A. Helmkamp 1995-6-20 95-2- 22 San Luis Obispo Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road 400 Comment
  OBI44856  Chorizanthe palmeri David J. Keil 1979-7-1 13139 San Luis Obispo Ridge between Prefumo Cyn and See Canyon. About 5 mi from jctn of Los Osos valley rd and Prefumo Cyn rd Comment
  UC2013234  Chorizanthe palmeri David Keil 1979-7-1 13139 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  UC454071  Chorizanthe palmeri Roadhouse 413 San Luis Obispo Prefumo Canyon Comment
  UCR118370  Chorizanthe palmeri George K. Helmkamp, E. A. Helmkamp 1998-7-1 4256 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road 244 Comment
  OBI79600  Chrysolepis chrysophylla David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31375 San Luis Obispo San Luis Range (Irish Hills). Ruda Road 478 Comment
  OBI82351  Chrysolepis chrysophylla David J. Keil, Matt Ritter, Jenn Yost, Brett Hall, et al. 2016-2-6 33442 San Luis Obispo Upper See Canyon 415 Comment
  OBI14342  Chrysolepis chrysophylla var. minor Robert F. Hoover 1963-5-4 8557 San Luis Obispo Upper Coon Creek, San Luis Range Comment
  UC1135221  Chrysolepis chrysophylla var. minor N. French 1936-1-31 707 San Luis Obispo Head of Davis Canyon; Port San Luis Quad. 457 Comment
  CAS-BOT-BC100949  Cirsium fontinale var. obispoense Alice Eastwood; John Thomas Howell 1938-6-14 5917 San Luis Obispo Prefumo Canyon, San Luis Range Comment
  CAS-BOT-BC100952  Cirsium fontinale var. obispoense Alice Eastwood; John Thomas Howell 1938-6-14 5917 San Luis Obispo Prefumo Canyon Comment
  CAS-BOT-BC100954  Cirsium fontinale var. obispoense Alice Eastwood; John Thomas Howell 1938-6-14 5917 San Luis Obispo Prefumo Canyon Comment
  GH427966  Cirsium fontinale var. obispoense A. Eastwood & J. T. Howell 1938-6-14 5917 Unknown Prefumo Canyon Comment
  OBI25251  Cirsium fontinale var. obispoense David J. Keil 1977-1 San Luis Obispo Comment
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Mar 9 2017
  OBI25252  Cirsium fontinale var. obispoense David J. Keil 1977-1 San Luis Obispo Comment
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Mar 9 2017
  RSA26271  Cirsium fontinale var. obispoense Alice Eastwood, John Thomas Howell 1938-6-14 5917 San Luis Obispo Prefumo Canyon. Comment
  UC1583848  Cirsium fontinale var. obispoense David Keil 1977-8-22 12520 San Luis Obispo Prefumo Canyon San Luis Range Comment
  UC592630  Cirsium fontinale var. obispoense Alice Eastwood and John Thomas Howell 1938-6-14 5917 San Luis Obispo Prefumo Canyon San Luis Range Comment
  UCR67937  Cirsium fontinale var. obispoense David J. Keil 1977-8-22 12520 San Luis Obispo San Luis Range, Prefumo Canyon 150 Comment
  CAS-BOT-BC172278  Clarkia bottae John Thomas Howell; Alice Eastwood 1938-6-14 5935 San Luis Obispo Prefumo Canyon Comment
  UC454549  Clarkia bottae E. P. Unangst 1906-5-30 San Luis Obispo Prefumo Canyon San Luis Obispo Comment
  UCD104366  Clarkia bottae Daryl Koutnik 1978-6-19 525 San Luis Obispo San Luis Obispo County: Prefumo Canyon. 243 Comment
  UCR118384  Clarkia bottae George K. Helmkamp, E. A. Helmkamp 1998-6-30 4237 San Luis Obispo Central Coast Ranges, Irish Hills, Prefumo Canyon, 2.1 mi SW of Los Osos Valley Rd. 198 Comment
  UCR118381  Clarkia davyi George K. Helmkamp, E. A. Helmkamp 1998-7-1 4242 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road 244 Comment
  UCR88342  Clarkia speciosa subsp. immaculata George K. Helmkamp 1995-6-20 95-2- 40 San Luis Obispo Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road 400 Comment
  CAS-BOT-BC165591  Clarkia unguiculata Alice Eastwood 1926-5-3 13786 San Luis Obispo Avila Comment
  OBI12079  Clarkia unguiculata R. D. Brister 1966-5-6 81 San Luis Obispo In Perfumo Cyn near SLO Comment
  OBI78296  Claytonia exigua subsp. exigua David J. Keil 1979-4-19 13059 San Luis Obispo Upper Prefumo Cyn rd Comment
  SBBG46833  Claytonia exigua subsp. exigua L. W. Edge 1973-4-9 266 San Luis Obispo near summit of See Cyn Rd Comment
  SBBG54832  Claytonia exigua subsp. exigua D. Keil 1979-4-19 13059 San Luis Obispo upper Prefumo Cyn Rd Comment
  UCR103801  Claytonia perfoliata George K. Helmkamp 1997-3-8 1456 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  OBI78301  Claytonia perfoliata subsp. mexicana Ed Zimmerman 1966-4-8 2 San Luis Obispo Perfumo Cyn Comment
  UC454257  Claytonia perfoliata subsp. perfoliata E. P. Unangst 1908-4-12 San Luis Obispo Prefumo Canyon Comment
  UCR161307  Claytonia perfoliata subsp. perfoliata George K. Helmkamp, E. A. Helmkamp 2005-3-8 9046 San Luis Obispo Coastal Hills, Prefumo Canyon, north side of Irish Hills; 2.2 mi west of Los Osos Valley Road 122 Comment
  RSA647823  Collinsia heterophylla Charles D. Dunn 1972-4-15 s.n. San Luis Obispo Perfumo Canyon 61 Comment
  UC1032533  Collinsia heterophylla C. M. Belshaw 1936-3-25 1727 San Luis Obispo 3.6 mi e-ne of Valencia Peak 396 Comment
  UC277767 Image available Collinsia heterophylla C. M. Belshaw 1936-3-25 1727 San Luis Obispo 3.6 mi e-ne of Valencia Peak (s of Morro Bay) 396 Comment
  UCR118387  Collinsia heterophylla George K. Helmkamp, E. A. Helmkamp 1998-6-30 4220 San Luis Obispo Central Coast, Irish Hills, SW of San Luis Obispo; Prefumo Cyn 2.2 mi SW of Los Osos Valley Rd. 137 Comment
  UCD123540  Collinsia heterophylla var. heterophylla G. K. Helmkamp; E. A. Helmkamp 2001-4-29 6593 San Luis Obispo San Luis Obispo County: Irish Hills: Profumo Canyon Road, 2.8 miles west of Los Osos Valley Road (SW of San Luis Obispo.) 91 Comment
  UCR134399  Collinsia heterophylla var. heterophylla George K. Helmkamp, E. A. Helmkamp 2001-4-29 6593 San Luis Obispo Irish Hills, Prefumo Cyn Rd., 2.8 miles west of Los Osos Valley Rd., SW of San Luis Obispo 91 Comment
  OBI83657  Cordylanthus rigidus David J. Keil, Travis Barrett 2016-3-23 33856 San Luis Obispo Southern foothills of San Luis Range. Wild Cherry Ranch west of Avila Beach. Survey area 10. 120 Comment
  OBI9558  Cordylanthus rigidus subsp. rigidus Robert F. Hoover 1946-8-3 6253 San Luis Obispo Upper Coon Crk, San Luis range, at edge of woods Comment
  RSA43202  Cordylanthus rigidus subsp. rigidus Robert F. Hoover 1946-8-3 6253 San Luis Obispo Upper Coon Creek, San Luis Range. Comment
  CAS-BOT-BC101411  Corethrogyne filaginifolia R. F. Hoover 1946-8-3 6259 San Luis Obispo Perfumo Canyon, San Luis Range Comment
  CAS-BOT-BC101431  Corethrogyne filaginifolia Alice Eastwood 1926-5-3 13770 San Luis Obispo Avila Comment
  CAS-BOT-BC101449  Corethrogyne filaginifolia R. F. Hoover 1946-8-3 6259 San Luis Obispo Perfumo Canyon, San Luis Range Comment
  OBI16653  Corethrogyne filaginifolia Robert F. Hoover 1946-8-3 6259 San Luis Obispo Perfumo Cyn, San Luis range Comment
  UC1285365  Corethrogyne filaginifolia R. F. Hoover 1946-8-3 6259 San Luis Obispo Perfumo Canyon San Luis Range Comment
  CAS-BOT-BC210346  Cornus sericea Ernest C. Twisselmann 1959-4-10 5038 San Luis Obispo Irish Hills: Perfumo Canyon 106 Comment
  CAS-BOT-BC210348  Cornus sericea W. R. Dudley 1902-4-5 s.n. San Luis Obispo Wild Cherry Creek, near Port Harford Comment
  CAS-BOT-BC210467  Cornus sericea subsp. occidentalis Ernest C. Twisselmann 1959-4-10 5038 San Luis Obispo Irish Hills: Perfumo Canyon 106 Comment
  UC1140926  Cornus sericea subsp. sericea W. R. Dudley 1902-4-5 San Luis Obispo Wild Cherry Creek near Port Harford; Wild Cherry Creek Comment
  UC1953324  Cotoneaster pannosus David Keil 2009-3-1 30566 San Luis Obispo Perfumo Canyon Road west of San Luis Obispo city limits. Comment
  OBI83054  Crassula connata David J. Keil, Travis Belt and Barrett Holland 2016-10-3 33567 San Luis Obispo Southern foothills of San Luis Range. Wild Cherry Ranch west of Avila Beach. Survey area 1. 15 Comment
  UCD119630  Cryptantha clevelandii G. K. Helmkamp; E. A. Helmkamp 2001-4-29 6596 San Luis Obispo San Luis Obispo County: Irish Hills Prefumo Cyn Rd., 2.8 mi west of Los Osos Valley Rd., SW of San Luis Obispo. 91 Comment
  UCR115583  Cryptantha clevelandii George K. Helmkamp, E. A. Helmkamp 2000-4-20 5411 San Luis Obispo Central Coast, road crest between See Canyon Road and Prefumo Canyon Road, SW of San Luis Obispo 320 Comment
  UCR134402  Cryptantha clevelandii George K. Helmkamp, E. A. Helmkamp 2001-4-29 6596 San Luis Obispo Irish Hills, Prefumo Cyn Rd., 2.8 miles west of Los Osos Valley Rd., SW of San Luis Obispo 91 Comment
  CAS-BOT-BC215971  Cuscuta californica Alice Eastwood 1926-5-3 13772 San Luis Obispo Avila Comment
  UC456000  Cuscuta subinclusa E. P. Unangst 1906-1 San Luis Obispo Perfumo Canon Comment
  OBI20822  Cynoglossum grande Robert F. Hoover 1949-5-3 7657 San Luis Obispo Summit at head of See Cyn, San Luis Range Comment
  OBI70206  Cynoglossum grande David J. Keil 2009-3-22 30569 San Luis Obispo Upper See Canyon Road Comment
  OBI72017  Cynoglossum grande Michael Walgren 2010-2-1 69 San Luis Obispo Irish Hills, Montana de Oro State Park. New property acquisition known as the 160 acre "Baseri" property at 4840 See Canyon rd, approx 8 mi from Los Osos Valley Rd and 0.5 mi from jctn with Perfumo Cyn rd. Inland portion of property on inland side of See Cyn rd 335 Comment
  UC1284986  Cynoglossum grande R. F. Hoover 1949-5-3 7657 San Luis Obispo summit at head of Lee Canyon; San Luis Range, Lee Canyon Comment
  UC454117  Cynoglossum grande unknown Apr., 1905 30 San Luis Obispo Prefumo Canyon Comment
  UC2013171  Cyperus alternifolius David Keil 1979-7-1 13109 San Luis Obispo San Luis Range, lower Prefumo Canyon. Comment
  OBI083627  Cyperus eragrostis David J. Keil 2016-5-24 33868 San Luis Obispo Southern foothills of San Luis Range. Wild Cherry Ranch west of Avila Beach. Survey area 3. In channel of tributary of Wild Cherry Creek in shade of oaks. 45 Comment
  UC2013170  Cyperus eragrostis David Keil 1979-7-1 13110 San Luis Obispo San Luis Range, lower Prefumo Canyon. Comment
  CAS-BOT-BC114797  Cyperus involucratus G. Helmkamp; E. A. Helmkamp 2000-9-2 5968 San Luis Obispo Irish Hills: Profumo Canyon, 2.2 mi W of Los Osos Valley Rd.. 137 Comment
  UCR118340  Cyperus involucratus George K. Helmkamp, E. A. Helmkamp 2000-9-2 5968 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road 137 Comment
  OBI75253  Danthonia californica David J. Keil 2011-5-12 31012 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 357 Comment
  RSA779035  Danthonia californica David J. Keil 2011-5-12 31012 San Luis Obispo San Luis Range. Irish Hills. Madona-Twisselmann Ranch, accessed from Prefumo Canyon Road 357 Comment
  CDA43358  Datura stramonium David J. Keil, Mike Walgren, Sally Krenn 2012-6-21 31384 San Luis Obispo San Luis Range (Irish Hills). Near mouth of Wild Cherry Canyon. Comment
  OBI79582  Datura stramonium David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31384 San Luis Obispo San Luis Range (Irish Hills). Near mouth of Wild Cherry Canyon. 60 Comment
  SEINET3928174  Datura stramonium David J. Keil, Mike Walgren; Sally Krenn 2012-6-21 31384 San Luis Obispo San Luis Range (Irish Hills). Near mouth of Wild Cherry Canyon.; 0 60 Comment
  UC2027578  Datura stramonium David J. Keil with Mike Walgren and Sally Krenn 2012-6-21 31384 San Luis Obispo San Luis Range (Irish Hills). Road from See Canyon to Davis Peak. Comment
  UCR87683  Deinandra fasciculata George K. Helmkamp, E. A. Helmkamp 1995-6-20 95- 2 -34 San Luis Obispo Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road 400 Comment
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Jan 8 2013
  OBI75261  Delphinium californicum David J. Keil 2011-5-12 31004 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 147 Comment
  OBI75246  Delphinium parryi David J. Keil 2011-5-12 31019 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 333 Comment
  UC569978  Delphinium parryi subsp. eastwoodiae C. M. Belshaw 1936-3-25 1729 San Luis Obispo 3.6 mi ne Valencia Peak; Cayucos Quadrangle 396 Comment
  UCR161323  Dichelostemma capitatum subsp. capitatum George K. Helmkamp, E. A. Helmkamp 2005-3-8 9059 San Luis Obispo Central Coast Hills, Prefumo Canyon, north side of Irish Hills; 3.0 mi west of Los Osos Valley Road 140 Comment
  CAS-BOT-BC152496  Diplacus aurantiacus Alice Eastwood 1926-5-3 13802 San Luis Obispo Avila Comment
  CAS-BOT-BC195708  Distichlis spicata R. F. Hoover 1964-6-10 9016 San Luis Obispo Avila Comment
  OBI22325  Distichlis spicata Robert F. Hoover 1964-6-10 9016 San Luis Obispo Avila Comment
  OBI27162  Dodecatheon clevelandii B. W. & T. W., T. W. 1967-3-25 s.n. San Luis Obispo Perfumo Cyn Comment
  UCR161352  Dodecatheon clevelandii subsp. insulare George K. Helmkamp, E. A. Helmkamp 2005-3-8 9069 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 4.6 mi west of Los Osos Valley Road 316 Comment
  OBI83637  Drymocallis glandulosa David J. Keil, Travis Barrett 2016-3-23 33849 San Luis Obispo Southern foothills of San Luis Range. Wild Cherry Ranch W of Avila Beach. Survey area 10. 120 Comment
  CAS-BOT-BC159527  Drymocallis glandulosa var. glandulosa Alice Eastwood 1926-5-3 13792 San Luis Obispo Avila Comment
  UC454987  Drymocallis glandulosa var. wrangelliana J. E. Roadhouse 1906-4-6 San Luis Obispo Prefumo Canyon Comment
  CAS-BOT-BC70975  Dryopteris arguta Alice Eastwood 1926-5-3 13794 San Luis Obispo Avila Comment
  CAS-BOT-BC109536  Dudleya abramsii subsp. murina Alice Eastwood; John Thomas Howell 1938-6-14 5928 San Luis Obispo Prefumo Canyon. Comment
  GH376706  Dudleya abramsii subsp. murina A. Eastwood & J. T. Howell 1938-6-14 5928 Unknown Prefumo Canyon Comment
  OBI21635  Dudleya abramsii subsp. murina David J. Keil 1979-7-1 13132 San Luis Obispo Ridge between Prefumo and See Cyns, about 5 mi from jctn of Los Osos Valley rd and Prefumo Cyn rd Comment
  UCD101864  Dudleya abramsii subsp. murina Daryl Koutnik 1978-6-19 523 San Luis Obispo San Luis Obispo County: Prefumo Canyon. 243 Comment
  UCD101865  Dudleya abramsii subsp. murina Daryl Koutnik 1978-6-19 523 San Luis Obispo San Luis Obispo County: Prefumo Canyon. 243 Comment
  UCD101866  Dudleya abramsii subsp. murina Daryl Koutnik 1978-6-19 523 San Luis Obispo San Luis Obispo County: Prefumo Canyon. 243 Comment
  UCR118372  Dudleya abramsii subsp. murina George K. Helmkamp, E. A. Helmkamp 1998-7-1 4254 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road 244 Comment
  OBI21634  Dudleya lanceolata David J. Keil 1979-7-1 13131 San Luis Obispo Ridge between Prefumo and See Cyn, about 5 mi from jctn of Los Osos Valley rd and Prefumo Cyn rd Comment
  OBI70205  Dudleya pulverulenta David J. Keil 2009-3-22 30568 San Luis Obispo San Luis Range. Upper Prefumo Canyon Comment
  OBI79585  Dudleya pulverulenta David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31381 San Luis Obispo San Luis Range (Irish Hills). Hibberd Preserve 315 Comment
  UC1953279  Dudleya pulverulenta David Keil 2009-3-22 30568 San Luis Obispo San Luis Range. Upper Prefumo Canyon. Comment
  OBI52974  Elymus glaucus Jenny Langford 1993-6-21 s.n. San Luis Obispo Avila Beach, San Luis Bay Estates. Proposed development increment 4 Comment
  OBI44855  Elymus multisetus David J. Keil 1979-7-1 13141 San Luis Obispo Ridge between Prefumo and See Cyns, about 5 mi from jctn of Los Osos Valley rd and Prefumo Cyn rd Comment
  SEINET239944  Elymus multisetus David Keil 1979-7-1 13141 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  RSA659432  Elymus stebbinsii David J. Keil 1979-7-1 13140 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  SEINET239945  Elymus stebbinsii subsp. septentrionalis David Keil 1979-7-1 13140 San Luis Obispo Ridge between Prefumo and See Canyon. About 5 mi from junction of Los Osos Valley Road and Perfumo Canyon Road. Comment
  OBI44857  Elymus trachycaulus David J. Keil 1979-7-1 13140 San Luis Obispo Ridge between Prefumo and See Cyns. About 5 mi from jctn of Los Osos Valley rd and Prefumo Cyn rd Comment
  UC2013158  Elymus trachycaulus David Keil 1979-7-1 13140 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  RSA647578  Emmenanthe penduliflora P. M. Harthill 1972-4-15 s.n. San Luis Obispo Irish Canyon. 457 Comment
  SEINET244300  Epilobium brachycarpum G. K. Helmkamp, E. A. Helmkamp 2000-9-2 5969 San Luis Obispo Irish Hills; Profumo Canyon, 2.2 mi W of Los Osos Valley Rd. 137 Comment
  UCR119349  Epilobium brachycarpum George K. Helmkamp, E. A. Helmkamp 2000-9-2 5976 San Luis Obispo Irish Hills, See Canyon (S portion), c. 1.8 mi north of San Luis Bay Drive (N of Avila Beach) 91 Comment
  UCR119829  Epilobium brachycarpum George K. Helmkamp, E. A. Helmkamp 2000-9-2 5969 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road 137 Comment
  UCR119350  Epilobium canum subsp. canum George K. Helmkamp, E. A. Helmkamp 2000-9-2 5975 San Luis Obispo Irish Hills, See Canyon (S portion), c. 1.8 mi north of San Luis Bay Drive (N of Avila Beach) 91 Comment
  SBBG46836  Epilobium minutum L. W. Edge 1973-4-10 269 San Luis Obispo near summit of Prefumo Cyn Rd Comment
  OBI72004  Equisetum telmateia Michael Walgren 2010-2-16 81 San Luis Obispo Irish Hills, Montana de oro State Park. New property acquisition known as the 160 acre "Basseri" property at 4840 See Canyon Road, approx. 8 mile from Los Osos Valley Rd. and 0.5 mile from junct. with Prefumo Cyn. Rd. Inland portion of property on inland side of See Cyn. Rd. 335 Comment
  CAS-BOT-BC257897  Eriogonum parvifolium Alice Eastwood 1926-5-3 13765 San Luis Obispo Avila Comment
  CAS-BOT-BC304093  Eriophyllum confertiflorum Alice Eastwood 1926-5-3 13773 San Luis Obispo Avila Comment
  CAS-BOT-BC304094  Eriophyllum confertiflorum Alice Eastwood; John Thomas Howell 1938-6-14 5922 San Luis Obispo Prefumo Canyon Comment
  UCR118789  Eriophyllum confertiflorum George K. Helmkamp 1997-3-8 1454 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  UCR118385  Eriophyllum confertiflorum var. confertiflorum George K. Helmkamp, E. A. Helmkamp 1998-6-30 4239 San Luis Obispo Central Coast Ranges, Irish Hills, Prefumo Canyon, 2.1 mi SW of Los Osos Valley Rd. 198 Comment
  UCR142580  Eriophyllum confertiflorum var. confertiflorum George K. Helmkamp, E. A. Helmkamp 2000-4-20 5420 San Luis Obispo Central Coast, road crest between See Canyon Road and Prefumo Canyon Road, SW of San Luis Obispo 320 Comment
  OBI83062  Erodium moschatum David J. Keil, Travis Belt and Barrett Holland 2016-3-10 33565 San Luis Obispo Southern Foothills of San Luis Range. Wild Cherry Ranch west of Avila Beach. Survey area 1 15 Comment
  CAS-BOT-BC54452  Erysimum capitatum Alice Eastwood 1926-5-3 13782 San Luis Obispo Avila. Comment
  OBI18906  Erythranthe arenicola David J. Keil 1979-4-29 13058 San Luis Obispo Upper Prefumo Cyn Rd Comment
  OBI79963  Erythranthe cardinalis David J. Keil 2013-7-6 31824 San Luis Obispo Prefumo Canyon Road. Creek bottom just upstream of bridge 3 100 Comment
  SBBG127301  Erythranthe cardinalis D. J. Keil 2013-7-6 31824 San Luis Obispo Prefumo Cyn Rd, crk bottom just upstream of bridge 3 100 Comment
  CAS-BOT-BC403490  Eschscholzia californica Alice Eastwood; John Thomas Howell 1938-6-14 5924 San Luis Obispo Prefumo Canyon Comment
  OBI6957  Eschscholzia californica S. S. Equinoa 1968-2-4 8 San Luis Obispo 10 mi S of San Luis Obispo in Avila Beach Comment
  UCR118374  Eschscholzia californica George K. Helmkamp, E. A. Helmkamp 1998-7-1 4251 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road 244 Comment
  UCR161360  Eschscholzia californica George K. Helmkamp, E. A. Helmkamp 2005-3-8 9078 San Luis Obispo Central Coast Hills., Irish Hills; crest of Prefumo Canyon Road, 5.2 mi west of Los Osos Valley Road 409 Comment
  UCR25003  Eschscholzia hypecoides George K. Helmkamp 1981-8-7 s.n. San Luis Obispo Central Coast, north end of See Canyon in the Irish Hills, near Los Osos Valley 213 Comment
  OBI12261  Eucalyptus globulus R. A. Hays 1957-10-12 s.n. San Luis Obispo Perfumo Cyn Comment
  OBI44863  Euphorbia spathulata David J. Keil 1979-7-1 13133 San Luis Obispo Ridge between Prefumo and See Cyn, about 5 mi from jctn of Los Osos Valley rd and Prefumo Cyn rd Comment
  SD148256  Eurybia radulina G. K. Helmkamp, E. A. Helmkamp 2000-9-2 5972 San Luis Obispo Irish Hills; Profumo Canyon, 2.2 miles west of Los Osos Valley Road. 136 Comment
  OBI2579  Festuca californica Larry E. Brown 1970-4-1 1922 San Luis Obispo In Perfumo Cyn near San Luis Obispo Comment
  OBI2835  Festuca californica Larry E. Brown 1971-4-25 1962 San Luis Obispo In Perfumo Cyn near San Luis Obispo Comment
  OBI79608  Festuca californica David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31364 San Luis Obispo San Luis Range (Irish Hills). Road from See Canyon to Davis Peak. 447 Comment
  UCR161358  Festuca myuros George K. Helmkamp, E. A. Helmkamp 2005-3-8 9086 San Luis Obispo Central Coast Hills., Irish Hills; crest of Prefumo Canyon Road, 5.2 mi west of Los Osos Valley Road 409 Comment
  OBI79609  Festuca perennis David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31365 San Luis Obispo San Luis Range (Irish Hills). Road from See Canyon to Davis Peak. 447 Comment
  SEINET2444533  Foeniculum vulgare Jillian C. Boettcher 2002-4-29 9 San Luis Obispo Avila Beach. Turnout off Avila Beach Drive 1 mi W of Avila Beach exit off Hwy 101. 6 Comment
  CAS-BOT-BC211646  Frankenia salina R. F. Hoover 1964-6-10 9014 San Luis Obispo Avila Comment
  OBI14187  Frankenia salina Robert F. Hoover 1964-6-10 9014 San Luis Obispo Avila Comment
  UC1122083  Fremontodendron californicum subsp. californicum B. Bolt 1936-3-18 635 San Luis Obispo 4 mi se of mouth of Osos Creek 243 Comment
  SDSU19713  Fritillaria affinis Sean Ryan, Michael G. Simpson 2010-4-1 24 San Luis Obispo South road cut of Prefumo Canyon Road. 2.3 miles from the intersection with Los Osos Valley Road and 100 yards east of bridge. 103 Comment
  UCR161345  Fritillaria affinis George K. Helmkamp, E. A. Helmkamp 2005-3-8 9051 San Luis Obispo Coastal Hills, Prefumo Canyon, north side of Irish Hills; 2.2 mi west of Los Osos Valley Road 122 Comment
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Jun 24 2012
  UC2013238  Galium californicum David Keil 1979-7-1 13135 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  OBI44861  Galium californicum subsp. flaccidum David J. Keil 1979-7-1 13135 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 mi from jctn of Los Osos Valley rd and Prefumo Canyon Rd Comment
  UC455880  Galium californicum subsp. flaccidum E. P. Unangst 1906-5-30 San Luis Obispo Prefumo Canyon San Luis Obispo Comment
  UCR118946  Galium cliftonsmithii George K. Helmkamp, E. A. Helmkamp 1998-6-30 4238 San Luis Obispo Central Coast Ranges, Irish Hills, Prefumo Canyon, 2.1 mi SW of Los Osos Valley Rd. 198 Comment
  OBI44810  Gamochaeta ustulata David J. Keil 1979-7-1 13118 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 mi from jctn of Los Osos valley rd and Prefumo Cyn rd Comment
  OBI72834  Gamochaeta ustulata Michael Walgren 2010-4-29 143 San Luis Obispo Irish Hills, Montana de Oro State Park. New property acquisition known as the 160 acre "Baseri" property at 4840 See Canyon rd, approx 8 mi from Los Osos Valley Rd and 0.5 mi from jctn with Perfumo Cyn rd. Inland portion of property on inland side of See Cyn Rd 301 Comment
  OBI79445  Gamochaeta ustulata David J. Keil 2013-5-15 31736 San Luis Obispo San Luis Range. Prefumo Canyon. Along banks above private drive off Prefumo Canyon Road 120 Comment
  OBI62793  Garrya elliptica Ed Zimmerman 1966-4-8 11 San Luis Obispo Perfumo cyn Comment
  OBI66540  Garrya elliptica David J. Keil 1996-12-5 s.n. San Luis Obispo Prefumo Cyn Comment
  OBI79603  Garrya elliptica David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31373 San Luis Obispo San Luis Range (Irish Hills). Road from See Canyon to Davis Peak. Davis Peak beneath powerline corridor 541 Comment
  SEINET3928176  Garrya elliptica David J. Keil 2012-6-21 31373 San Luis Obispo San Luis Range (Irish Hills). Road from See Canyon to Davis Peak.; 0 541 Comment
  UC454527  Garrya elliptica I. J. Condit 1908-2-17 San Luis Obispo Prefumo Canyon Comment
  SFV12392  Genista monspessulana D. L. Koutnik 1978-6-19 529 San Luis Obispo Prefumo Canyon. 244 Comment
  UCD105727  Genista monspessulana Daryl Koutnik 1978-6-19 529 San Luis Obispo San Luis Obispo County: Prefumo Canyon. 243 Comment
  UCR161699  Genista monspessulana George K. Helmkamp, E. A. Helmkamp 2005-3-8 9052 San Luis Obispo Coastal Hills, Prefumo Canyon, north side of Irish Hills; 2.2 mi west of Los Osos Valley Road 122 Comment
  UCR97563  Genista monspessulana George K. Helmkamp 1997-3-8 1439 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  UCR134396  Geranium carolinianum George K. Helmkamp, E. A. Helmkamp 2001-4-29 6590 San Luis Obispo Irish Hills, Clark Valley Rd., 4.2 miles south of Los Osos Valley Rd, E of Los Osos 274 Comment
  UCR61731  Geranium dissectum George K. Helmkamp 1989-4-17 s.n. San Luis Obispo Irish Hills, at the crest of Prefumo Canyon Road 366 Comment
  UCR88338  Geranium dissectum George K. Helmkamp 1995-6-20 95 2 17 San Luis Obispo Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road 400 Comment
  OBI75256  Geranium molle David J. Keil 2011-5-12 31009 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 304 Comment
  OBI78837  Gilia achilleifolia Michael Walgren 2014-4-30 402 San Luis Obispo San Luis Range along the PG&E access road above Wild Cherry Canyon 359 Comment
  RSA0095182  Gilia achilleifolia subsp. achilleifolia George K. Helmkamp, Elizabeth A. Helmkamp 2001-4-29 6595 San Luis Obispo Irish Hills: Profumo Cyn Rd., 2.8 mi W of Los Osos Valley Rd. (SW of San Luis Obispo). 91 Comment
  UCD117628  Gilia achilleifolia subsp. achilleifolia G. K. Helmkamp; E. A. Helmkamp 2001-4-29 6595 San Luis Obispo San Luis Obispo County: Irish Hills, Profumo Canyon Road, 2.8 miles west of Los Osos Valley Road (SW of San Luis Obispo.) 91 Comment
  UCR134401  Gilia achilleifolia subsp. achilleifolia George K. Helmkamp, E. A. Helmkamp 2001-4-29 6595 San Luis Obispo Irish Hills, Prefumo Cyn Rd., 2.8 miles west of Los Osos Valley Rd., SW of San Luis Obispo 91 Comment
  UCR88714  Gilia achilleifolia subsp. achilleifolia George K. Helmkamp 1995-6-20 950620- 32 San Luis Obispo Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road 400 Comment
  CAS-BOT-BC303875  Gnaphalium Alice Eastwood 1926-5-3 13762 San Luis Obispo Avila Comment
  UCR104785  Gnaphalium californicum George K. Helmkamp 1997-3-8 1462 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  CAS-BOT-BC305078  Grindelia hirsutula Alice Eastwood 1926-5-3 13763 San Luis Obispo Avila Comment
  UC455733  Guillenia lasiophylla E. P. Unangst 1908-4-12 San Luis Obispo Perfumo Canyon Comment
  OBI75116  Hazardia squarrosa Robert F. Hoover 1946-8-3 6262 San Luis Obispo Perfumo Cyn, San Luis Range Comment
  UC1285344  Hazardia squarrosa var. grindelioides R. F. Hoover 1946-8-3 6262 San Luis Obispo Perfumo Canyon San Luis Range, Perfumo Canyon Comment
  CAS-BOT-BC302374  Hazardia squarrosa var. squarrosa R. F. Hoover 1946-8-3 6262 San Luis Obispo Perfumo Canyon, San Luis Range Comment
  OBI80015  Helenium puberulum David J. Keil 2013-7-6 31826 San Luis Obispo San Luis Range. Prefumo Canyon Road. Creek bottom just upstream of bridge 3 100 Comment
  SBBG48553  Hemizonia congesta subsp. luzulifolia L. W. Edge 1974-6-20 450 San Luis Obispo upper Prefumo Cyn Comment
  UCR118378  Hemizonia congesta subsp. luzulifolia George K. Helmkamp, E. A. Helmkamp 1998-7-1 4246 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road 244 Comment
  UCR88341  Hemizonia congesta subsp. luzulifolia George K. Helmkamp, E. A. Helmkamp 1995-6-20 95 2 30 San Luis Obispo Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road 400 Comment
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Jan 7 2013
  OBI83061  Hesperevax sparsiflora David J. Keil, Travis Belt and Barrett Hollland 2016-3-10 33562 San Luis Obispo Southern foothills of San Luis Range. Wild Cherry Ranch west of Avila Beach. Survey area 1 15 Comment
  OBI7217  Hesperocyparis macrocarpa R. A. Hays 1957-10-12 s.n. San Luis Obispo Perfumo Cyn, San Luis Obispo Comment
  CDA6979  Heterotheca grandiflora David J. Keil 1996-12-5 s.n. San Luis Obispo Prefumo Canyon. 0 Comment
  SBBG112725  Heterotheca grandiflora D. Keil 1996-12-5 San Luis Obispo Prefumo Cyn Comment
  OBI79606  Hieracium argutum David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31366 San Luis Obispo San Luis Range (Irish Hills). Road from See Canyon to Davis Peak. 447 Comment
  RSA42968  Hieracium argutum Robert F. Hoover 1946-8-3 6251 San Luis Obispo Upper Coon Creek. Comment
  UC2027577  Hieracium argutum David J. Keil with Mike Walgren and Sally Krenn 2012-6-21 31366 San Luis Obispo San Luis Range (Irish Hills). Road from See Canyon to Davis Peak. Comment
  UC454704  Hoita orbicularis unknown 422 San Luis Obispo Prefumo Canyon; near creek Comment
  UCR118357  Holodiscus discolor George K. Helmkamp, E. A. Helmkamp 1998-6-30 4224 San Luis Obispo Central Coast, Irish Hills, SW of San Luis Obispo; Prefumo Cyn 2.2 mi SW of Los Osos Valley Rd. 137 Comment
  OBI75263  Hordeum brachyantherum subsp. brachyantherum David J. Keil 2011-5-12 31002 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 300 Comment
  RSA779036  Hordeum brachyantherum subsp. brachyantherum David J. Keil 2011-5-12 31002 San Luis Obispo San Luis Range. Irish Hills. Madona-Twisselmann Ranch, accessed from Prefumo Canyon Road 300 Comment
  CAS-BOT-BC324695  Isocoma menziesii var. vernonioides Alice Eastwood 1926-5-3 13799 San Luis Obispo Avila Comment
  OBI79420  Isolepis cernua David J. Keil 2013-6-6 31787 San Luis Obispo San Luis Range. Prefumo Canyon 130 Comment
  OBI82582  Keckiella cordifolia David J. Keil 2015-6-20 33260 San Luis Obispo Prefumo Canyon, between 2nd and 3rd bridge 120 Comment
  UCR117396  Keckiella cordifolia George K. Helmkamp, E. A. Helmkamp 1995-6-20 95- 2 - San Luis Obispo Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road 400 Comment
  UCR39156  Kickxia elatine David J. Keil 1982-7-26 16314 San Luis Obispo Central Coast, San Luis Creek adjacent to San Luis Obispo sewage treatment plant Comment
  OBI44854  Koeleria macrantha David J. Keil 1979-7-1 13142 San Luis Obispo Ridge between Prefumo and See Cyns. About 5 mi from jctn of Los Osos Valley rd and Prefumo Cyn rd Comment
  UC2013157  Koeleria macrantha David Keil 1979-7-1 13142 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  UCR118382  Lagophylla ramosissima George K. Helmkamp, E. A. Helmkamp 1998-7-1 4241 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road 244 Comment
  CDA2222  Lamarckia aurea G. D. Barbe 1973-3-13 1133 San Luis Obispo Bishop Canyon Road (See Canyon) north of Avila Beach. 0 Comment
  SBBG67875  Lasthenia gracilis C. B. Hardham 1967-3-3 14330 San Luis Obispo Diablo Cyn Comment
  UCR161361  Lasthenia gracilis George K. Helmkamp, E. A. Helmkamp 2005-3-8 9079 San Luis Obispo Central Coast Hills., Irish Hills; crest of Prefumo Canyon Road, 5.2 mi west of Los Osos Valley Road 409 Comment
  UCR118364  Lathyrus latifolius George K. Helmkamp, E. A. Helmkamp 1998-6-30 4227 San Luis Obispo Central Coast, Irish Hills, SW of San Luis Obispo; Prefumo Cyn 2.2 mi SW of Los Osos Valley Rd. 137 Comment
  OBI72015  Lathyrus vestitus var. vestitus Michael Walgren 2010-2-1 67 San Luis Obispo Irish Hills, Montana de Oro State park. New property acquisition known as the 160 acre "Basseri" property at 4840 See Cyn Rd, approx 8 mi from Los Osos Valley Rd and 0.5 mi from jctn with Perfumo Cyn rd. in land portion of property on inland side of See Cyn Rd 335 Comment
  UCR161302  Lathyrus vestitus var. vestitus George K. Helmkamp, E. A. Helmkamp 2005-3-9 9103 San Luis Obispo Central Coast Hills, Irish Hills; See Canyon, 4.4 mi N of San Luis Bay Drive 186 Comment
  UC1069747  Layia jonesii P. L. Johannsen 1936-3-22 736 San Luis Obispo 1 3/4 mi sw San Luis Obispo; San Luis Obispo Quad., Plot 11 106 Comment
  SBBG30796  Layia platyglossa C. B. Hardham 1967-3-3 14328 San Luis Obispo Diablo Cyn Comment
  A400236  Lepechinia calycina A. Eastwood & J. T. Howell 1938-6-14 5936 Unknown Prefumo Canyon Comment
  CAS-BOT-BC221508  Lepechinia calycina Alice Eastwood; John Thomas Howell 1938-6-14 5936 San Luis Obispo Prefumo Canyon Comment
  UC1124455  Lepechinia calycina H. C. Lee 1936-4-9 555 San Luis Obispo 1 1/4 miles ENE of Saddle Peak 518 Comment
  UC456129  Lepechinia calycina E. P. Unangst 1906-5-30 San Luis Obispo Perfumo Canyon Comment
  UCR161356  Lepidium nitidum var. oreganum George K. Helmkamp, E. A. Helmkamp 2005-3-8 9073 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 4.6 mi west of Los Osos Valley Road 316 Comment
  UCR61739  Lepidium oblongum George K. Helmkamp 1989-4-17 s.n. San Luis Obispo Irish Hills, at the crest of Prefumo Canyon Road 366 Comment
  UCR161351  Lepidium pinnatifidum George K. Helmkamp, E. A. Helmkamp 2005-3-8 9068 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 4.6 mi west of Los Osos Valley Road 316 Comment
  CAS-BOT-BC130788  Lilium pardalinum Alice Eastwood; John Thomas Howell 1938-6-14 5918 San Luis Obispo Prefumo Canyon Comment
  UC843962  Lilium pardalinum subsp. pardalinum Alice Eastwood and John Thomas Howell 1938-6-14 5918 San Luis Obispo Prefumo Canyon Comment
  UC570289  Linanthus parviflorus P. L. Johannsen 1936-3-22 734 San Luis Obispo 1.75 mi sw San Luis Obispo; San Luis Obispo Quad. 106 Comment
  CDA25415  Lithophragma cymbalaria G. D. Barbe, J. L. Johnson 1973-3-13 1134 San Luis Obispo Bishop Canyon Road (See Canyon) north of Avila Beach. 0 Comment
  OBI44809  Logfia gallica David J. Keil 1979-7-1 13119 San Luis Obispo Ridge between Prefumo and See Cyns. About 5 mi from jctn of Los Osos Valley red and Prefumo Cyn Rd Comment
  OBI72818  Logfia gallica Michael Walgren 2010-4-29 140 San Luis Obispo Irish Hills, Montana de Oro State Park. New property acquisition known as the 160 acre "Baseri" property at 4840 See Canyon rd, approx 8 mi from Los Osos Valley Rd and 0.5 mi from jctn with Perfumo Cyn rd. Inland portion of property on inland side of See 279 Comment
  UCR161354  Lomatium caruifolium var. caruifolium George K. Helmkamp, E. A. Helmkamp 2005-3-8 9071 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 4.6 mi west of Los Osos Valley Road 316 Comment
  OBI27154  Lomatium dasycarpum B. W. & T. W., T. W. 1967-3-25 San Luis Obispo Prefumo Cyn Comment
  CAS-BOT-BC218439  Lomatium parvifolium John Thomas Howell; Alice Eastwood 1938-6-14 5919 San Luis Obispo Prefumo Canyon Comment
  OBI38323  Lomatium parvifolium David J. Keil 1979-4-29 13056 San Luis Obispo Upper Prefumo Cyn rd Comment
  OBI44808  Lomatium parvifolium David J. Keil 1979-7-1 13120 San Luis Obispo Ridge between Prefumo and See cyns. About 5 mi from jctn of Los Osos Valley rd and Prefumo Cyn rd Comment
  UC640628  Lomatium parvifolium Alice Eastwood and John Thomas Howell 1938-6-14 5919 San Luis Obispo Prefumo Canyon Comment
  UCR42862  Lomatium parvifolium David J. Keil 1979-4-29 13056 San Luis Obispo Upper Prefumo Canyon Road Comment
  UCR161322  Lomatium utriculatum George K. Helmkamp, E. A. Helmkamp 2005-3-8 9081 San Luis Obispo Central Coast Hills., Irish Hills; crest of Prefumo Canyon Road, 5.2 mi west of Los Osos Valley Road 409 Comment
  UCR87685  Lonicera hispidula George K. Helmkamp, E. A. Helmkamp 1995-6-20 95 2 24 San Luis Obispo Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road 400 Comment
  UC1125242  Lonicera hispidula var. vacillans H. C. Lee 1936-4-6 550 San Luis Obispo 1 mi e Saddle Peak; Port San Luis Quadrangle Comment
  UC1125246  Lonicera hispidula var. vacillans H. C. Lee 1936-5-11 599 San Luis Obispo 1/2 mi s of head Davis Canyon; Port San Luis Quadrangle Comment
  UC455868  Lonicera hispidula var. vacillans E. P. Unangst 1906-1 San Luis Obispo Perfumo Canyon Comment
  UCR118373  Lonicera hispidula var. vacillans George K. Helmkamp, E. A. Helmkamp 1998-7-1 4252 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road 244 Comment
  SBBG109636  Lotus C. B. Hardham 1969-2-11 14309 a San Luis Obispo Diablo Cyn Comment
  UCR100023  Lotus junceus George K. Helmkamp, E. Helmkamp 1990-11-21 - 2 -19 San Luis Obispo Bear Creek Ranch, 6 mi. SE of Los Osos on Clark Valley Rd. 396 Comment
  UC454675  Lotus micranthus E. P. Unangst 1906-5-30 San Luis Obispo Perfumo Canyon Comment
  UCR115581  Lotus micranthus George K. Helmkamp, E. A. Helmkamp 2000-4-20 5413 San Luis Obispo Central Coast, road crest between See Canyon Road and Prefumo Canyon Road, SW of San Luis Obispo 320 Comment
  VVC2850  Lotus micranthus Tim Thomas, George Ross II & III 2014-4-23 6268 San Luis Obispo South Coast Range, Irish Hills, 0.2 miles below Glenrose Spring along Coon Ck. 277 Comment
  UCR118337  Lotus purshianus George K. Helmkamp, E. A. Helmkamp 2000-9-2 5964 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road 137 Comment
  UCR118344  Lotus purshianus var. purshianus George K. Helmkamp, E. A. Helmkamp 2000-9-2 5970 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road 137 Comment
  UC55795  Lotus salsuginosus Mrs. R. W. Summers 1885-6-4 San Luis Obispo Avila Comment
  UC57164  Lotus salsuginosus Mrs. R. W. Summers 1885-6-4 San Luis Obispo Avila Comment
  SEINET3131520  Lotus salsuginosus var. salsuginosus R. W. Summers 1885-6-4 sn San Luis Obispo Avila Comment
  SBBG109322  Lupinus C. B. Hardham 1967-3-18 14397 San Luis Obispo Diablo Cyn Comment
  UC454671  Lupinus affinis I. J. Condit 1910-6-4 San Luis Obispo Prefumo Canyon Prefumo Canyon, San Luis Obispo (San Luis Obispo); , Prefumo Canyon Comment
  OBI19285  Lupinus albifrons Robert F. Hoover 1963-5-4 8554 San Luis Obispo Upper Coon Crk, San Luis Range Comment
  OBI23311  Lupinus albifrons J. T. Arnold 1965-4-11 50 San Luis Obispo West side of See Canyon, S 1/2 sect 11, T31S, R11E Comment
  UC1129329  Lupinus albifrons H. C. Lee 1936-5-11 600 San Luis Obispo 1/2 mi s head of Davis Canyon; Port San Luis Quad. Comment
  UC1285097  Lupinus albifrons R. F. Hoover 1963-5-4 8554 San Luis Obispo Upper Coon Creek; San Luis Range, Upper Coon Creek Comment
  CAS-BOT-BC195751  Lupinus albifrons var. albifrons R. F. Hoover 1963-5-4 8554 San Luis Obispo Upper Coon Creek, San Luis Range Comment
  CAS-BOT-BC195770  Lupinus albifrons var. albifrons R. F. Hoover 1963-5-4 8554 San Luis Obispo Upper Coon Creek, San Luis Range Comment
  CAS-BOT-BC195771  Lupinus albifrons var. albifrons R. F. Hoover 1963-5-4 8554 San Luis Obispo Upper Coon Creek, San Luis Range Comment
  OBI72024  Lupinus bicolor Michael Walgren 2010-2-1 75 San Luis Obispo irish Hills, Montana de Oro State park. New property acquisition known as the 160 acre "Basseri" property at 4840 See Cyn Rd, approx 8 mi from Los Osos Valley Rd and 0.5 mi from jctn with Perfumo Cyn rd. in land portion of property on inland side of See Cyn Rd 335 Comment
  SBBG34836  Lupinus bicolor Mrs. R. W. Summers 1885-6-4 San Luis Obispo Avila Comment
  UC55703  Lupinus bicolor Mrs. R. W. Summers San Luis Obispo Avila; Coast Hills, Avila Comment
  UCR115560  Lupinus bicolor George K. Helmkamp, E. A. Helmkamp 2000-4-20 5414 San Luis Obispo Central Coast, Irish Hills, north of Avila Beach, See Canyon, 7.4 mi south of Los Osos Valley Road 213 Comment
  OBI79708  Lupinus concinnus David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31376 San Luis Obispo San Luis Range (Irish Hills). Ruda Road 482 Comment
  UCR161346  Lupinus hirsutissimus George K. Helmkamp, E. A. Helmkamp 2005-3-8 9056 San Luis Obispo Central Coast Hills, Prefumo Canyon, north side of Irish Hills; 3.0 mi west of Los Osos Valley Road 140 Comment
  OBI72011  Lupinus latifolius Michael Walgren 2010-2-1 72 San Luis Obispo Irish Hills, Montana de Oro State park. New property acquisition known as the 160 acre "Basseri" property at 4840 See Cyn Rd, approx 8 mi from Los Osos Valley Rd and 0.5 mi from jctn with Perfumo Cyn rd. in land portion of property on inland side of See Cyn Rd Comment
  UCD108119  Lupinus latifolius G. K. Helmkamp; E. K. Helmkamp 2001-4-29 6588 San Luis Obispo San Luis Obispo County: Irish Hills; Clark Valley Road; 4.2 mi S of Los Osos Valley Rd. (east of Los Osos). 274 Comment
  UCR103809  Lupinus latifolius George K. Helmkamp 1997-3-8 1452 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  UCR61743  Lupinus latifolius George K. Helmkamp 1989-4-17 s.n. San Luis Obispo Irish Hills, at the crest of Prefumo Canyon Road 366 Comment
  UCR97566  Lupinus latifolius George K. Helmkamp 1997-3-8 1446 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  RSA22259  Lupinus latifolius subsp. latifolius Alice Eastwood 1939-4-18 18924 San Luis Obispo Prefumo Canyon. Comment
  UCR134394  Lupinus latifolius subsp. latifolius George K. Helmkamp, E. A. Helmkamp 2001-4-29 6588 San Luis Obispo Irish Hills, Clark Valley Rd., 4.2 miles south of Los Osos Valley Rd, E of Los Osos 274 Comment
  UCR161349  Lupinus latifolius subsp. latifolius George K. Helmkamp, E. A. Helmkamp 2005-3-9 9108 San Luis Obispo Central Coast Hills, Irish Hills; See Canyon, 5.7 mi N of San Luis Bay Drive 399 Comment
  UCR88710  Lupinus latifolius subsp. latifolius George K. Helmkamp, E. A. Helmkamp 1995-6-20 95-2- 23 San Luis Obispo Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road 400 Comment
  UCR115785  Lupinus latifolius var. latifolius George K. Helmkamp, E. A. Helmkamp 2000-4-19 5378 San Luis Obispo Central Coast, Irish Hills (SSW of San Luis Obispo). See Cyn., 3 mi south of Los Osos Valley Rd, up Prefumo Cyn. to crest, and down See Cyn. to the site 213 Comment
  OBI48179  Lupinus microcarpus var. densiflorus David J. Keil 1979-7-1 13129 San Luis Obispo Ridge between Prefumo and See Cyns. About 5 mi from jctn of los Osos Valley Rd and Prefumo Cyn Rd Comment
  UCR118380  Lupinus microcarpus var. densiflorus George K. Helmkamp, E. A. Helmkamp 1998-7-1 4243 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road 244 Comment
  UCR115782  Lupinus nanus George K. Helmkamp, E. A. Helmkamp 2000-4-19 5381 San Luis Obispo Central Coast, Irish Hills (SSW of San Luis Obispo). See Cyn., 3 mi south of Los Osos Valley Rd, up Prefumo Cyn. to crest, and down See Cyn. to the site 213 Comment
  UCR118945  Lupinus nanus George K. Helmkamp, E. A. Helmkamp 1998-7-1 4253 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road 244 Comment
  UC1129691  Lupinus rivularis B. Bolt 1936-3-13 622 San Luis Obispo 1/2 mi sw of mouth Sycamore Canyon; San Luis Obispo Quad., sw of mouth Sycamore Canyon Comment
  OBI12823  Lupinus succulentus B. W. & T. W., T. W. 1967-3-25 s.n. San Luis Obispo Perfumo Cyn Comment
  OBI83057  Lupinus succulentus David J. Keil, Travis Belt and Barrett Holland 2016-3-10 33569 San Luis Obispo Southern Foothills of San Luis Range. Wild Cherry Ranch west of Avila Beach. Survey area 1 15 Comment
  UCR161326  Lupinus succulentus George K. Helmkamp, E. A. Helmkamp 2005-3-8 9062 San Luis Obispo Central Coast Hills, Prefumo Canyon, north side of Irish Hills; 3.0 mi west of Los Osos Valley Road 140 Comment
  UCR161341  Lupinus succulentus George K. Helmkamp, E. A. Helmkamp 2005-3-8 9085 San Luis Obispo Central Coast Hills., Irish Hills; crest of Prefumo Canyon Road, 5.2 mi west of Los Osos Valley Road 409 Comment
  UCR97567  Lupinus succulentus George K. Helmkamp 1997-3-8 1441 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  OBI083659  Lupinus truncatus David Keil, Travis Barrett 2016-3-23 33858 San Luis Obispo Southern Foothills of San Luis Range. Wild Cherry Ranch west of Avila Beach. Survey area 10; 120 Comment
  UCR161347  Lupinus truncatus George K. Helmkamp, E. A. Helmkamp 2005-3-8 9057 San Luis Obispo Central Coast Hills, Prefumo Canyon, north side of Irish Hills; 3.0 mi west of Los Osos Valley Road 140 Comment
  UCR247967  Luzula comosa var. comosa David J. Keil, Mike Walgren, Sally Krenn 2012-6-21 31367 San Luis Obispo Central Coast, San Luis Range, Irish Hills. Road from See Canyon to Davis Peak 447 Comment
  OBI79605  Luzula subsessilis David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31367 San Luis Obispo San Luis Range (Irish Hills). Road from See Canyon to Davis Peak. 447 Comment
  OBI10719  Lysimachia latifolia R. Wunrow Apr-54 s.n. San Luis Obispo Perfumo Cyn Comment
  OBI10720  Lysimachia latifolia R. D. Brister 1966-5-6 111 San Luis Obispo In Perfumo Cyn near San Luis Obispo Comment
  OBI72817  Madia gracilis Michael Walgren 2010-4-29 139 San Luis Obispo Irish Hills, Montana de Oro State Park. New property acquisition known as the 160 acre "Baseri" property at 4840 See Canyon rd, approx 8 mi from Los Osos Valley Rd and 0.5 mi from jctn with Perfumo Cyn rd. Inland portion of property on inland side of See Cyn Rd Comment
  UCD134316  Madia gracilis Daryl Koutnik 1978-6-19 527 San Luis Obispo San Luis Obispo County: Prefumo Canyon. 243 Comment
  UCR118347  Madia gracilis George K. Helmkamp, E. A. Helmkamp 2000-9-2 5972 A San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road 137 Comment
  UCR118367  Madia gracilis George K. Helmkamp, E. A. Helmkamp 1998-6-30 4231 San Luis Obispo Central Coast Ranges, Irish Hills, SW of San Luis Obispo, Prefumo Cyn., 3.2 mi SW of Los Osos Valley Rd. 198 Comment
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Jan 7 2013
  UCR118183  Madia sativa George K. Helmkamp, E. A. Helmkamp 2000-9-2 5979 San Luis Obispo Irish Hills, See Canyon (S portion), c. 1.8 mi north of San Luis Bay Drive (N of Avila Beach) 91 Comment
  UCR118369  Malva nicaeensis George K. Helmkamp, E. A. Helmkamp 1998-7-1 4257 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road 244 Comment
  UCR161355  Matricaria matricarioides George K. Helmkamp, E. A. Helmkamp 2005-3-8 9072 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 4.6 mi west of Los Osos Valley Road 316 Comment
  UCR161327  Medicago polymorpha George K. Helmkamp, E. A. Helmkamp 2005-3-8 9061 San Luis Obispo Central Coast Hills, Prefumo Canyon, north side of Irish Hills; 3.0 mi west of Los Osos Valley Road 140 Comment
  OBI52918  Melica imperfecta Jenny Langford 1993-6-21 s.n. San Luis Obispo Avila Beach, San Luis Bay Estates. Proposed development increment 4 Comment
  OBI52919  Melica imperfecta Jenny Langford 1993-6-21 s.n. San Luis Obispo Avila Beach, San Luis Bay Estates. Proposed development increment 4 Comment
  OBI79633  Melica imperfecta David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31377 San Luis Obispo San Luis Range (Irish Hills). Ruda Road 482 Comment
  OBI13698  Melissa officinalis Robert F. Hoover 1946-8-3 6252 San Luis Obispo Upper Coon Crk, San Luis Range Comment
  UC1284944  Melissa officinalis R. F. Hoover 1946-8-3 6252 San Luis Obispo near dry water-course Upper Coon Creek; San Luis Range, Upper Coon Creek Comment
  UC771738  Melissa officinalis R. F. Hoover 1946-8-3 San Luis Obispo near dry water course Upper Coon Creek; San Luis Range, Upper Coon Creek Comment
  OBI78838  Mentzelia micrantha Michael Walgren 2014-4-30 401 San Luis Obispo San Luis Range along the PG&E access road above Wild Cherry Canyon 359 Comment
  OBI75254  Micropus californicus var. subvestitus David J. Keil 2011-5-12 31011 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 354 Comment
  UCR61714  Micropus californicus var. subvestitus George K. Helmkamp 1989-4-17 s.n. San Luis Obispo Irish Hills, at the crest of Prefumo Canyon Road 366 Comment
  OBI44858  Microseris douglasii David J. Keil 1979-7-1 13138 San Luis Obispo Ridge between Prefumo and See Cyns. About 5 mi from jctn of Los Osos Valley red and Prefumo Cyn Rd Comment
  UCR266504  Microseris douglasii David J. Keil 1979-7-1 13138 San Luis Obispo Ridge between Prefumo and See Canyons, c. 5. mi from the junction of Los Osos Valley Road and Prefumo Canyon Road 325 Comment
  OBI83620  Microseris douglasii subsp. douglasii David J. Keil, Travis Barrett 2016-3-23 33845 San Luis Obispo Southern foothills of San Luis Range. Wild Cherry Ranch W of Avila Beach. Survey area 10. 120 Comment
  UCR103808  Mimulus aurantiacus George K. Helmkamp 1997-3-8 1451 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  UCR161324  Mimulus aurantiacus George K. Helmkamp, E. A. Helmkamp 2005-3-8 9060 San Luis Obispo Central Coast Hills, Prefumo Canyon, north side of Irish Hills; 3.0 mi west of Los Osos Valley Road 140 Comment
  OBI80014  Mimulus guttatus David J. Keil 2013-7-6 31827 San Luis Obispo San Luis Range. Prefumo Canyon Road. Creek bottom just upstream of bridge 3 100 Comment
  SBBG54852  Mimulus guttatus D. Keil 1979-4-29 13058 San Luis Obispo upper Prefumo Cyn Rd Comment
  UCR118339  Mimulus guttatus George K. Helmkamp, E. A. Helmkamp 2000-9-2 5966 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road 137 Comment
  UCR118359  Mimulus guttatus George K. Helmkamp, E. A. Helmkamp 1998-6-30 4233 San Luis Obispo Central Coast Ranges, Irish Hills, Prefumo Canyon, 2.1 mi SW of Los Osos Valley Rd. 198 Comment
  CAS-BOT-BC434723  Mirabilis laevis var. crassifolia Alice Eastwood 1926-5-3 13774 San Luis Obispo Avila Comment
  CAS-BOT-BC434724  Mirabilis laevis var. crassifolia Alice Eastwood 1926-5-3 13771 San Luis Obispo Avila Comment
  OBI44869  Monardella palmeri David J. Keil 1979-7-1 13123 San Luis Obispo Ridge between Prefumo and See Cyns, about 5 mi from jctn of Los Osos Valley rd and Prefumo Cyn rd Comment
  UC2013175  Monardella villosa David Keil 1979-7-1 13117 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  OBI44811  Monardella villosa subsp. obispoensis David J. Keil 1979-7-1 13117 San Luis Obispo Ridge between Prefumo and See Cyns. About 5 mi from jctn of los Osos Valley Rd and Prefumo Cyn Rd Comment
  OBI78259  Monardella villosa subsp. obispoensis Robert F. Hoover 1946-8-3 6260 San Luis Obispo Above Perfumo Cyn, San Luis range Comment
  RSA42986  Monardella villosa subsp. obispoensis Robert F. Hoover 1946-8-3 6260 San Luis Obispo Above Perfumo Canyon Comment
  UC771643  Monardella villosa subsp. obispoensis R. F. Hoover 1946-8-3 6260 San Luis Obispo Above Perfumo Canyon; San Luis Range Comment
  SBBG123087  Monardella villosa var. obispoensis D. Keil 1979-7-1 13117 San Luis Obispo ridge between Prefumo and See cyns, ca 5 mi from jct of Los Osos Valley Rd and Prefumo Cyn Rd Comment
  UCR87682  Navarretia hamata George K. Helmkamp, E. A. Helmkamp 1995-6-20 95- 02 - San Luis Obispo Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road 400 Comment
  OBI72572  Nicotiana glauca Jillian C. Boettcher 2002-4-29 12 San Luis Obispo Avila beach. Cliffs lining Old Port Beach across from the Avila Beach Pier 3 Comment
  UC455563  Orobanche fasciculata E. P. Unangst July 1906 San Luis Obispo Perfumo Canyon. Comment
  OBI79423  Osmorhiza berteroi David J. Keil 2013-6-6 31788 San Luis Obispo San Luis Range. Upper Prefumo Canyon 190 Comment
  OBI75011  Pedicularis densiflora Michael Walgren 2011-1-28 194 San Luis Obispo Diablo Canyon Power Plant, on a road above Coon Crk near the boundary with Montana de Oro State Park. 400 Comment
  UCR118358  Pellaea andromedifolia George K. Helmkamp, E. A. Helmkamp 1998-6-30 4230 San Luis Obispo Central Coast, Irish Hills, SW of San Luis Obispo; Prefumo Cyn 2.2 mi SW of Los Osos Valley Rd. 137 Comment
  UC74862  Pellaea mucronata var. mucronata Mrs. R. W. Summers San Luis Obispo near Avila; Coast Mt Comment
  CAS-BOT-BC70229  Pentagramma triangularis subsp. triangularis Alice Eastwood 1926-5-3 s.n. San Luis Obispo Avila Comment
  UCR118949  Pentagramma triangularis subsp. triangularis George K. Helmkamp, E. A. Helmkamp 1998-6-30 4232 San Luis Obispo Central Coast Ranges, Irish Hills, Prefumo Canyon, 2.1 mi SW of Los Osos Valley Rd. 198 Comment
  SD148141  Phacelia californica G. K. Helmkamp, E. A. Helmkamp 2001-4-29 6597 San Luis Obispo Irish Hills: Profumo Canyon Road, 2.8 miles west of Los Osos Vallaey Road. 91 Comment
  UC1602028  Phacelia californica P. L. Johannsen 1936-3-22 733 San Luis Obispo 1 3/4 mi sw San Luis Obispo (Plot 11); San Luis Obispo Quadrangle 106 Comment
  UCR134403  Phacelia californica George K. Helmkamp, E. A. Helmkamp 2001-4-29 6597 San Luis Obispo Irish Hills, Prefumo Cyn Rd., 2.8 miles west of Los Osos Valley Rd., SW of San Luis Obispo 91 Comment
  OBI19535  Phacelia distans B. W. & T. W., T. W. 1967-3-25 s.n. San Luis Obispo Prefumo Cyn Comment
  SBBG48481  Phacelia imbricata L. W. Edge 1974-6-10 457 San Luis Obispo upper Prefumo Cyn Comment
  UCR118366  Phacelia imbricata subsp. imbricata George K. Helmkamp, E. A. Helmkamp 1998-6-30 4229 San Luis Obispo Central Coast, Irish Hills, SW of San Luis Obispo; Prefumo Cyn 2.2 mi SW of Los Osos Valley Rd. 137 Comment
  UC455965  Phacelia malvifolia E. P. Unangst 1906-4-21 San Luis Obispo Davis Canyon Comment
  UC54869  Phacelia malvifolia Mrs. R. W. Summers 1883-2-20 571 San Luis Obispo ocean bluffs Avila Comment
  UC762347  Phacelia malvifolia Robert F. Hoover 1946-4-27 6082 San Luis Obispo See Canyon Comment
  OBI13754  Phacelia malvifolia var. loasifolia Robert F. Hoover 1964-5-14 8869 San Luis Obispo See Cyn Comment
  CAS-BOT-BC222610  Pholistoma auritum var. auritum Ernest C. Twisselmann 1959-4-10 5028 San Luis Obispo Irish Hills: See Canyon 60 Comment
  CAS-BOT-BC222612  Pholistoma auritum var. auritum Ernest C. Twisselmann 1959-4-10 5028 San Luis Obispo Irish Hills, See Canyon 60 Comment
  CDA19643  Pholistoma auritum var. auritum G. D. Barbe, Jim Johnson 1973-3-12 1132 San Luis Obispo Central Coast; Bishop Canyon Rd (See Canyon), north of Avila Beach. 60 Comment
  OBI19543  Pholistoma auritum var. auritum B. W. & T. W., T. W. 1967-4-4 s.n. San Luis Obispo Perfumo Cyn Comment
  UCR118365  Pickeringia montana George K. Helmkamp, E. A. Helmkamp 1998-6-30 4228 San Luis Obispo Central Coast, Irish Hills, SW of San Luis Obispo; Prefumo Cyn 2.2 mi SW of Los Osos Valley Rd. 137 Comment
  OBI12775  Pickeringia montana var. montana R. D. Brister 1966-5-6 67 San Luis Obispo In Perfumo Cyn near SLO Comment
  OBI44860  Pickeringia montana var. montana David J. Keil 1979-7-1 13136 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 mi from jctn of Los Osos Valley rd and Prefumo Canyon rd Comment
  OBI72005  Pickeringia montana var. montana Michael Walgren 2010-2-16 80 San Luis Obispo Irish Hills, Prefumo Cyn rd, about 5.06 mi from Los Osos Valley rd Comment
  UC454640  Pickeringia montana var. montana E. P. Unangst 1906-5-30 San Luis Obispo Prefumo Canyon Comment
  UC454641  Pickeringia montana var. montana J. E. Roadhouse San Luis Obispo Prefumo Canyon; n slopes Comment
  UC569813  Pickeringia montana var. montana B. Bolt 1936-3-19 639 San Luis Obispo 3/4 mi s mouth of Sycamore Canyon; San Luis Obispo Quadrangle 182 Comment
  OBI73364  Pinus coulteri David J. Keil 2010-3-15 30662 -5 San Luis Obispo Upper Prefumo Canyon Road below See-Prefumo Canyon summit Comment
  UCR246620  Pinus coulteri Patrick O'Bannon 1973-2-4 015 San Luis Obispo 3 mi in on Perfumo Canyon Road 183 Comment
  CAS-BOT-BC79000  Pinus muricata R. F. Hoover 1946-8-3 6256 San Luis Obispo Upper Coon Creek, San Luis Range Comment
  OBI22738  Pinus muricata Robert F. Hoover 1946-8-3 6256 San Luis Obispo Upper Coon crk, San Luis Range Comment
  UCR119241  Piptatherum miliaceum George K. Helmkamp, E. A. Helmkamp 2000-9-2 5963 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road 137 Comment
  OBI82598  Plantago coronopus David J. Keil 2015-8-10 33341 San Luis Obispo Avila Beach 5 Comment
  UCR161359  Plantago erecta George K. Helmkamp, E. A. Helmkamp 2005-3-8 9077 San Luis Obispo Central Coast Hills., Irish Hills; crest of Prefumo Canyon Road, 5.2 mi west of Los Osos Valley Road 409 Comment
  UCD124593  Plantago lanceolata Daryl Koutnik 1978-6-19 526 San Luis Obispo San Luis Obispo County: Prefumo Canyon. 243 Comment
  A347817  Platanus racemosa A. Eastwood 1926-5-3 13787 Unknown Avila Comment
  CAS-BOT-BC93225  Platanus racemosa Alice Eastwood 1926-5-3 13787 San Luis Obispo Avila. Comment
  CDA25610  Platanus racemosa G. D. Barbe, J. L. Johnson 1973-3-13 1123 San Luis Obispo Avila. 0 Comment
  OBI11616  Platanus racemosa R. A. Hays 1957-10-12 s.n. San Luis Obispo Perfumo Cyn Comment
  UC1127682  Platanus racemosa B. Bolt 1936-3-19 640 San Luis Obispo 1/2 mi s mouth of Sycamore Canyon; San Luis Obispo Quadrangle Comment
  UC1126479  Platystemon californicus P. L. Johannsen 1936-3-22 732 San Luis Obispo 1.75 mi sw San Luis Obispo; San Luis Obispo Quad. 106 Comment
  UC569730  Platystemon californicus P. L. Johannsen 1936-3-22 732 San Luis Obispo 1 3/4 mi sw San Luis Obispo; San Luis Obispo Quad., w of San Luis Obispo 106 Comment
  UCR115584  Platystemon californicus George K. Helmkamp, E. A. Helmkamp 2000-4-20 5410 San Luis Obispo Central Coast, road crest between See Canyon Road and Prefumo Canyon Road, SW of San Luis Obispo 320 Comment
  UCR161339  Platystemon californicus George K. Helmkamp, E. A. Helmkamp 2005-3-8 9083 San Luis Obispo Central Coast Hills., Irish Hills; crest of Prefumo Canyon Road, 5.2 mi west of Los Osos Valley Road 409 Comment
  RSA648499  Platystemon californicus var. californicus Charles D. Dunn 1972-4-15 s.n. San Luis Obispo Perfumo Canyon 61 Comment
  OBI44867  Pogogyne douglasii David J. Keil 1979-7-1 13126 San Luis Obispo Ridge between Prefumo and See Cyns. About 5 mi from jctn of los Osos Valley Rd and Prefumo Cyn Rd Comment
  RSA659434  Pogogyne douglasii David J. Keil 1979-7-1 13126 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  UC2013173  Pogogyne douglasii David Keil 1979-7-1 13126 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  UCR246617  Pogogyne douglasii Lynne Dee Oyler, David J. Keil 1988-6-23 534 San Luis Obispo Upper Perfumo Canyon Road near summit 294 Comment
  CAS-BOT-BC71997  Polypodium californicum Alice Eastwood 1926-5-3 13780 San Luis Obispo Avila Comment
  OBI083651  Polypodium californicum David J. Keil, Travis Barrett 2016-3-23 33846 San Luis Obispo Southern foothills of San Luis Range. Wild Cherry Ranch W of Avila Beach. Survey area 10 120 Comment
  OBI79602  Polypodium californicum David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31368 San Luis Obispo San Luis Range (Irish Hills). Road from See Canyon to Davis Peak. 447 Comment
  SEINET3873590  Polypodium californicum Merlyne Prescott 1969-4-7 139 San Luis Obispo In Perfumo Canyon.; 0 Comment
  UC1063659  Polypodium californicum C. M. Belshaw 1936-3-26 1730 San Luis Obispo 3.6 mi e-ne of Valencia Peak (Plot 11); Cayucos Quadrangle 396 Comment
  OBI72016  Polypodium calirhiza Michael Walgren 2010-2-1 68 San Luis Obispo Irish Hills, Montana de Oro State Park. New property acquisition known as the 160 acre "Basseri" property at 4840 See Canyon rd, approx 8 mi from Los Osos Valley rd and 0.5 mi from jctn with Perfumo Cyn rd. Inland portion of property on inland side of See 335 Comment
  CAS-BOT-BC237320  Polypogon monspeliensis R. F. Hoover 1964-6-10 9012 San Luis Obispo Avila Comment
  OBI22179  Polypogon monspeliensis Robert F. Hoover 1964-6-10 9012 San Luis Obispo Avila Comment
  OBI9877  Populus trichocarpa R. A. Hays 1957-10-12 s.n. San Luis Obispo Perfumo cyn Comment
  A346542  Prunus ilicifolia A. Eastwood 1926-5-3 13779 Unknown Avila Comment
  CAS-BOT-BC154490  Prunus ilicifolia Alice Eastwood 1926-5-3 13779 San Luis Obispo Avila Comment
  UC453984  Prunus ilicifolia unknown 1906-1 San Luis Obispo Prefumo Canyon Comment
  CAS-BOT-BC356833  Pseudognaphalium californicum Alice Eastwood 1926-5-3 13768 San Luis Obispo Avila Comment
  OBI72009  Pseudognaphalium californicum Michael Walgren 2010-2-1 74 San Luis Obispo Irish Hills, Montana de Oro State Park. New property acquisition known as the 160 acre "Baseri" property at 4840 See Canyon rd, approx 8 mi from Los Osos Valley Rd and 0.5 mi from jctn with Perfumo Cyn rd. Inland portion of property on inland side of See Cyn rd 335 Comment
  UC454338  Psilocarphus tenellus E. P. Unangst 1906-4-8 San Luis Obispo Perfumo Canyon Comment
  UC2013176  Psoralea orbicularis David Keil 1979-7-1 13116 San Luis Obispo San Luis Range, lower Prefumo Canyon. Comment
  UCR97554  Psoralea physodes George K. Helmkamp 1997-3-8 1443 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  UCR161319  Pteridium aquilinum George K. Helmkamp, E. A. Helmkamp 2005-3-8 9048 San Luis Obispo Coastal Hills, Prefumo Canyon, north side of Irish Hills; 2.2 mi west of Los Osos Valley Road 122 Comment
  UCR97545  Quercus agrifolia George K. Helmkamp 1997-3-8 1440 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  OBI79590  Quercus berberidifolia David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31379 San Luis Obispo San Luis Range (Irish Hills). Ruda Road near Hibberd Preserve 441 Comment
  UC1135421  Quercus chrysolepis H. C. Lee 1936-4-6 549 San Luis Obispo 1 mi e Saddle Peak; San Luis Obispo National Forest, Port San Luis Quad. 457 Comment
  UC1135422  Quercus chrysolepis N. French 1936-1-31 706 San Luis Obispo Head of David Canyon Port San Luis Quad. 457 Comment
  OBI79589  Quercus durata David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31380 San Luis Obispo San Luis Range (Irish Hills). Ruda Road near Hibberd Preserve 441 Comment
  UC1135570  Quercus durata H. C. Lee 1936-4-9 559 San Luis Obispo 1 mi ne Saddle Peak; San Luis Obispo National Forest, Port San Luis Quad. 426 Comment
  UCD102840  Quercus durata Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-3-30 s.n. San Luis Obispo San Luis Obispo County: S. Luis Obispo. Prefumo Canyon. Prefumo Canyon Road-See Canyon Road. 410 Comment
  OBI44862  Quercus durata var. durata David J. Keil 1979-7-1 13134 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 mi from jctn of Los Osos Valley rd and Prefumo Canyon rd Comment
  SD244718  Quercus durata var. durata David J. Keil, Mike Walgren and Sally Krenn 2012-6-21 31380 San Luis Obispo San Luis Range (Irish Hills); Ruda Road near Hibberd Preserve 441 Comment
  UC1135721  Quercus lobata H. C. Lee 1936-5-11 598 San Luis Obispo saddle head of Mine Canyon Port San Luis Quad. 487 Comment
  OBI79598  Quercus wislizeni David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31378 San Luis Obispo San Luis Range (Irish Hills). Ruda Road near Hibberd Preserve 441 Comment
  UC1135876  Quercus wislizeni H. C. Lee 1936-4-9 557 San Luis Obispo 1 mi ene Saddle Peak; San Luis Obispo National Forest, Port San Luis Quad. 457 Comment
  OBI75082  Ranunculus californicus Michael Walgren 2011-2-25 223 San Luis Obispo Irish Hills, Montana de Oro State park. New Property acquisition known as the "Andre" property about 1/3 of a mi SE of the jctn of See Canyon Rd with Perfumo Cyn rd 342 Comment
  UCR103803  Ranunculus californicus George K. Helmkamp 1997-3-8 1463 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  UCR115781  Ranunculus californicus George K. Helmkamp, E. A. Helmkamp 2000-4-19 5382 San Luis Obispo Central Coast, Irish Hills (SSW of San Luis Obispo). See Cyn., 3 mi south of Los Osos Valley Rd, up Prefumo Cyn. to crest, and down See Cyn. to the site 213 Comment
  UCR161344  Ranunculus californicus George K. Helmkamp, E. A. Helmkamp 2005-3-8 9050 San Luis Obispo Coastal Hills, Prefumo Canyon, north side of Irish Hills; 2.2 mi west of Los Osos Valley Road 122 Comment
  UCR161353  Ranunculus californicus George K. Helmkamp, E. A. Helmkamp 2005-3-8 9070 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 4.6 mi west of Los Osos Valley Road 316 Comment
  UCR61755  Ranunculus californicus George K. Helmkamp 1989-4-17 s.n. San Luis Obispo Irish Hills, at the crest of Prefumo Canyon Road 366 Comment
  SBBG113495  Ranunculus californicus var. californicus C. B. Hardham 1967-2-11 14315 San Luis Obispo Diablo Cyn Comment
  OBI14044  Ribes indecorum Robert F. Hoover 1947-1-6 6590 San Luis Obispo Upper Coon Crk, San Luis Range Comment
  CAS-BOT-BC168967  Ribes malvaceum J. E. Roadhouse April 190_ 17 San Luis Obispo Prefumo Canyon Comment
  UC1127326  Ribes malvaceum B. Bolt 1936-3-18 636 San Luis Obispo 4 mi se of mouth Osos Creek; Cayucos Quadrangle Comment
  UC455592  Ribes malvaceum unknown San Luis Obispo Prefumo Canyon Comment
  UCR103810  Ribes malvaceum George K. Helmkamp 1997-3-8 1457 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  OBI57963  Ribes menziesii Austin P. Griffiths 1985-3-16 s.n. San Luis Obispo Hibbard Nature Preserve Comment
  UC1127446  Ribes menziesii B. Bolt 1936-3-18 637 San Luis Obispo 4 mi se of mouth Osos Creek; Cayucos Quadrangle Comment
  OBI72010  Ribes sanguineum var. glutinosum Michael Walgren 2010-2-1 73 San Luis Obispo Irish Hills, Montana de Oro State Park. New property acquisition known as the 160 acre "Basseri" property at 4840 See Canyon rd, approx 8 mi from Los Osos Valley rd and 0.5 mi from jctn with Perfumo Cyn rd. Inland portion of property on inland side of See 335 Comment
  UC1127598 Image available Ribes sanguineum var. glutinosum H. C. Lee 1936-4-2 541 San Luis Obispo head Coon Creek; Port San Luis Quadrangle Comment
  UCR161350  Ribes sanguineum var. glutinosum George K. Helmkamp, E. A. Helmkamp 2005-3-9 9109 San Luis Obispo Central Coast Hills, Irish Hills; See Canyon, 5.7 mi N of San Luis Bay Drive 399 Comment
  OBI72018  Ribes speciosum Michael Walgren 2010-2-1 70 San Luis Obispo Irish Hills, Montana de Oro State Park. New property acquisition known as the 160 acre "Basseri" property at 4840 See Canyon rd, approx 8 mi from Los Osos Valley rd and 0.5 mi from jctn with Perfumo Cyn rd. Inland portion of property on inland side of See 335 Comment
  UCR115561  Ribes speciosum George K. Helmkamp, E. A. Helmkamp 2000-4-20 5418 San Luis Obispo Central Coast, Irish Hills, north of Avila Beach, See Canyon, 7.4 mi south of Los Osos Valley Road 213 Comment
  UCR97558  Ribes speciosum George K. Helmkamp 1997-3-8 1447 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  UCR118355  Rosa californica George K. Helmkamp, E. A. Helmkamp 1998-6-30 4219 San Luis Obispo Central Coast, Irish Hills, SW of San Luis Obispo; Prefumo Cyn 2.2 mi SW of Los Osos Valley Rd. 137 Comment
  UCR118319  Rubus armeniacus George K. Helmkamp, E. A. Helmkamp 1998-6-30 4240 San Luis Obispo Central Coast Ranges, Irish Hills, SW of San Luis Obispo, Prefumo Cyn., 3.2 mi SW of Los Osos Valley Rd. 198 Comment
  UC1128629  Rubus parviflorus H. C. Lee 1936-4-6 552 San Luis Obispo Davis Canyon, Port San Luis Quadrangle Davis Canyon; , Port San Luis Quadrangle Comment
  CAS-BOT-BC156991  Rubus ursinus Ernest C. Twisselmann 1959-4-10 5039 San Luis Obispo Irish Hills: Perfumo Canyon 106 Comment
  CAS-BOT-BC156994  Rubus ursinus Ernest C. Twisselmann 1959-4-10 5039 San Luis Obispo Irish Hills: Perfumo Canyon 106 Comment
  UCR115783  Rumex acetosella George K. Helmkamp, E. A. Helmkamp 2000-4-19 5380 San Luis Obispo Central Coast, Irish Hills (SSW of San Luis Obispo). See Cyn., 3 mi south of Los Osos Valley Rd, up Prefumo Cyn. to crest, and down See Cyn. to the site 213 Comment
  UCR101008  Rumex pulcher George K. Helmkamp, E. A. Helmkamp 1995-6-20 95 2 31 San Luis Obispo Bear Creek Ranch, SE of Los Osos. 6 mi SE of Los Osos on Clark Valley Rd 396 Comment
  UCR118376  Rumex pulcher George K. Helmkamp, E. A. Helmkamp 1998-7-1 4249 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road 244 Comment
  UC2013177  Rumex salicifolius David Keil 1979-7-1 13115 San Luis Obispo San Luis Range, lower Prefumo Canyon. Comment
  CAS-BOT-BC124820  Salix lasiolepis var. lasiolepis W. R. Dudley 1902-4-5 s.n. San Luis Obispo Above Avila Comment
  UC456139  Salvia columbariae unknown May 1905 San Luis Obispo Perfumo Canyon Comment
  UC573548  Salvia columbariae P. L. Johannsen 1936-3-22 731 San Luis Obispo 1.75 mi sw San Luis Obispo; San Luis Obispo Quad. 106 Comment
  UC1124771  Salvia grahamii H. C. Lee 1936-4-9 560 San Luis Obispo 0.75 mi se Head of Davis Canyon; San Luis Obispo National Forest, Port San Luis Quad. 228 Comment
  CAS-BOT-BC230012  Salvia mellifera Alice Eastwood 1926-5-3 13783 San Luis Obispo Avila Comment
  UC456108  Salvia mellifera E. P. Unangst 1906-5-30 San Luis Obispo Perfumo Canyon Comment
  RSA0119580  Salvia spathacea Joseph Cahill 2013-3-30 313 -02 San Luis Obispo South Coast Range: Prefumo Canyon Rd. 3.2 miles west (airline 265 degrees) of Laguna Lake. 186 Comment
  UCR103806  Salvia spathacea George K. Helmkamp 1997-3-8 1449 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  UCR142582  Salvia spathacea George K. Helmkamp, E. A. Helmkamp 2000-4-20 5421 San Luis Obispo Central Coast, road crest between See Canyon Road and Prefumo Canyon Road, SW of San Luis Obispo 320 Comment
  UCR261399  Salvia spathacea Joseph Cahill 2013-3-30 313- 02 San Luis Obispo South Coast Range, Prefumo Canyon Rd. 3.2 miles west (airline, 265 deg. ) of Laguna Lake 186 Comment
  OBI44807  Sanicula arguta David J. Keil 1979-7-1 13121 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 mi from jctn of Los Osos Valley rd and Prefumo cyn rd Comment
  UC2013174  Sanicula arguta David Keil 1979-7-1 13121 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  UCD127919  Sanicula arguta G. K. Helmkamp; E. A. Helmkamp 2001-4-29 6584 San Luis Obispo San Luis Obispo County: Irish Hills, Clark Valley Road, 4.2 miles south of Los Osos Valley Road (East of Los Osos.) 274 Comment
  UCR115557  Sanicula arguta George K. Helmkamp, E. A. Helmkamp 2000-4-20 5416 San Luis Obispo Central Coast, Irish Hills, north of Avila Beach, See Canyon, 7.4 mi south of Los Osos Valley Road 213 Comment
  UCR134391  Sanicula arguta George K. Helmkamp, E. A. Helmkamp 2001-4-29 6584 San Luis Obispo Irish Hills, Clark Valley Rd., 4.2 miles south of Los Osos Valley Rd, E of Los Osos 274 Comment
  UCR118790  Sanicula crassicaulis George K. Helmkamp 1997-3-8 1453 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  UCR161305  Sanicula crassicaulis George K. Helmkamp, E. A. Helmkamp 2005-3-9 9100 San Luis Obispo Central Coast Hills, Irish Hills; See Canyon, 4.4 mi N of San Luis Bay Drive 186 Comment
  UCR161357  Sanicula laciniata George K. Helmkamp, E. A. Helmkamp 2005-3-8 9074 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 4.6 mi west of Los Osos Valley Road 316 Comment
  UCR118383  Satureja douglasii George K. Helmkamp, E. A. Helmkamp 1998-6-30 4236 San Luis Obispo Central Coast Ranges, Irish Hills, Prefumo Canyon, 2.1 mi SW of Los Osos Valley Rd. 198 Comment
  UCR88343  Satureja douglasii George K. Helmkamp, E. A. Helmkamp 1995-6-20 95-2- 20 San Luis Obispo Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road 400 Comment
  UC455364  Saxifraga californica I. J. Condit 1908-2-17 San Luis Obispo Perfumo Canyon Comment
  UCR161693  Saxifraga californica George K. Helmkamp, E. A. Helmkamp 2005-3-8 9053 San Luis Obispo Coastal Hills, Prefumo Canyon, north side of Irish Hills; 2.2 mi west of Los Osos Valley Road 122 Comment
  OBI75262  Scandix pecten-veneris David J. Keil 2011-5-12 31003 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 147 Comment
  UCR88344  Scandix pecten-veneris George K. Helmkamp, L. Helmkamp 1995-6-20 95- 2 -33 San Luis Obispo Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road 400 Comment
  OBI83056  Scrophularia californica David J. Keil, Travis Belt and Barrett Holland 2016-3-10 33568 San Luis Obispo Southern Foothills of San Luis Range. Wild Cherry Ranch west of Avila Beach. Survey area 1 15 Comment
  OBI79601  Senecio glomeratus David J. Keil, with Mike Walgren and Sally Krenn 2012-6-21 31374 San Luis Obispo San Luis Range (Irish Hills). Road from See Canyon to Davis Peak. Davis Peak beneath powerline corridor 541 Comment
  UCR247969  Senecio glomeratus David J. Keil, Mike Walgren, Sally Krenn 2012-6-21 31374 San Luis Obispo San Luis Range, Irish Hills. Road from See Canyon to Davis Peak. Davis Peak beneath powerline corridor 541 Comment
  UC1285140  Senna multiglandulosa R. F. Hoover 1964-1-19 8626 San Luis Obispo San Luis Range, Lower Coon Creek Lower Coon Creek; San Luis Range, Lower Coon Creek Comment
  RSA648495  Sidalcea malviflora subsp. laciniata Dunn 1972-4-15 s.n. San Luis Obispo Perfumo Canyon 61 Comment
  UCD116815  Sidalcea malviflora subsp. laciniata G. K. Helmkamp; E. A. Helmkamp 2001-4-29 6586 San Luis Obispo San Luis Obispo County: Irish Hills, Clark Valley Road, 4.2 miles south of Los Osos Valley Road (East of Los Osos.) 274 Comment
  UCR115799  Sidalcea malviflora subsp. laciniata George K. Helmkamp, E. A. Helmkamp 2000-4-20 5406 San Luis Obispo Central Coast, road crest between See Canyon Road and Prefumo Canyon Road, SW of San Luis Obispo 320 Comment
  UCR134392  Sidalcea malviflora subsp. laciniata George K. Helmkamp, E. A. Helmkamp 2001-4-29 6586 San Luis Obispo Irish Hills, Clark Valley Rd., 4.2 miles south of Los Osos Valley Rd, E of Los Osos 274 Comment
  OBI72819  Silene gallica Michael Walgren 2010-4-29 141 San Luis Obispo Irish Hills, Montana de Oro State Park. New property acquisition known as the 160 acre "Basseri" property at 4840 See Cyn Rd, approx 8 mi from Los Osos Valley Rd and 0.5 mi from jctn with Perfumo Cyn rd. in land portion of property on inland side of See Cyn rd 301 Comment
  UCR115798  Silene gallica George K. Helmkamp, E. A. Helmkamp 2000-4-20 5407 San Luis Obispo Central Coast, road crest between See Canyon Road and Prefumo Canyon Road, SW of San Luis Obispo 320 Comment
  CAS-BOT-BC174947  Silene laciniata Alice Eastwood; John Thomas Howell 1938-6-14 5926 San Luis Obispo Prefumo Canyon Comment
  UCR118361  Silene laciniata George K. Helmkamp, E. A. Helmkamp 1998-6-30 4234 San Luis Obispo Central Coast Ranges, Irish Hills, Prefumo Canyon, 2.1 mi SW of Los Osos Valley Rd. 198 Comment
  UCR118363  Silene laciniata subsp. major George K. Helmkamp, E. A. Helmkamp 1998-6-30 4226 San Luis Obispo Central Coast, Irish Hills, SW of San Luis Obispo; Prefumo Cyn 2.2 mi SW of Los Osos Valley Rd. 137 Comment
  RSA648506  Sisyrinchium bellum Charles D. Dunn 1972-4-15 s.n. San Luis Obispo Perfumo Canyon 61 Comment
  UCR134397  Sisyrinchium bellum George K. Helmkamp, E. A. Helmkamp 2001-4-29 6591 San Luis Obispo Irish Hills, Clark Valley Rd., 4.2 miles south of Los Osos Valley Rd, E of Los Osos 274 Comment
  UCR161325  Sisyrinchium bellum George K. Helmkamp, E. A. Helmkamp 2005-3-8 9063 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 4.6 mi west of Los Osos Valley Road 316 Comment
  UCR61703  Smilacina stellata var. sessilifolia George K. Helmkamp 1989-4-17 s.n. San Luis Obispo Irish Hills, at the crest of Prefumo Canyon Road 366 Comment
  RSA647593  Solanum douglasii C. Dunn 1972-4-15 s.n. San Luis Obispo Perfumo Canyon. 61 Comment
  UCR161303  Solanum douglasii George K. Helmkamp, E. A. Helmkamp 2005-3-9 9102 San Luis Obispo Central Coast Hills, Irish Hills; See Canyon, 4.4 mi N of San Luis Bay Drive 186 Comment
  CAS-BOT-BC156842  Solanum umbelliferum E. Zimmerman 1966-4-8 15 San Luis Obispo Perfumo Canyon Comment
  CAS-BOT-BC157497  Solanum umbelliferum R. F. Hoover 1963-5-4 8560 San Luis Obispo Upper Coon Creek, San Luis Range Comment
  OBI9105  Solanum xanti Robert F. Hoover 1963-5-4 8560 San Luis Obispo Upper Coon Crk, San Luis Range Comment
  OBI9114  Solanum xanti Robert F. Hoover 1963-5-4 8560 San Luis Obispo Upper Coon Crk, San Luis Range Comment
  OBI9115  Solanum xanti Ed Zimmerman 1966-4-8 15 San Luis Obispo Perfumo Cyn Comment
  SBBG112563  Solanum xanti C. B. Hardham 1967-2-11 14312 a San Luis Obispo Diablo Cyn Comment
  UCR103804  Solanum xanti George K. Helmkamp 1997-3-8 1459 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  UCR161320  Sonchus oleraceus George K. Helmkamp, E. A. Helmkamp 2005-3-9 9105 San Luis Obispo Central Coast Hills, Irish Hills; See Canyon, 4.4 mi N of San Luis Bay Drive 186 Comment
  UCR161678  Sonchus oleraceus George K. Helmkamp, E. A. Helmkamp 2005-3-8 9064 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 4.6 mi west of Los Osos Valley Road 316 Comment
  OBI083626  Spergula arvensis David J. Keil, Travis Barrett 2016-5-23 33840 San Luis Obispo Southern foothills of San Luis Range. Wild Cherry Ranch west of Avila Beach. Survey area 10. 120 Comment
  CAS-BOT-BC390445  Spergularia macrotheca var. macrotheca Alice Eastwood 1926-5-3 13797 San Luis Obispo Avila Comment
  CAS-BOT-BC390910  Spergularia marina R. F. Hoover 1964-6-10 9013 San Luis Obispo Avila Comment
  CAS-BOT-BC390911  Spergularia marina Alice Eastwood 1926-5-3 13778 San Luis Obispo Avila Comment
  OBI83623  Spergularia rubra David J. Keil, Travis Barrett 2016-3-23 33842 San Luis Obispo Southern Foothills of San Luis Range. Wild Cherry Ranch W of Avila Beach. Survey area 10 120 Comment
  OBI083625  Spergularia villosa David J. Keil, Travis Barrett 2016-5-23 33841 San Luis Obispo Southern foothills of San Luis Range. Wild Cherry Ranch west of Avila Beach. Survey area 10. Locally common in bed of dirt road and on scrapes on open, annual-weed-dominated hillside. 120 Comment
  OBI72820  Stachys bullata Michael Walgren 2010-4-29 142 San Luis Obispo Irish Hills, Montana de Oro State Park. New property acquisitionknown as the 160 acre "Basseri" property at 4840 See Canyon Rd, approx 8 mi from Los Osos Valley Rd and 0.5 mi from jctn with Perfumo Cyn Rd. Inland portion of proeprty on inland side of See Cyn Rd 301 Comment
  UCR118356  Stachys bullata George K. Helmkamp, E. A. Helmkamp 1998-6-30 4223 San Luis Obispo Central Coast, Irish Hills, SW of San Luis Obispo; Prefumo Cyn 2.2 mi SW of Los Osos Valley Rd. 137 Comment
  UCR118360  Stachys bullata George K. Helmkamp, E. A. Helmkamp 1998-6-30 4235 San Luis Obispo Central Coast Ranges, Irish Hills, SW of San Luis Obispo, Prefumo Cyn., 3.2 mi SW of Los Osos Valley Rd. 198 Comment
  UC2013169  Stachys pycnantha David Keil 1979-7-1 13113 San Luis Obispo San Luis Range, lower Prefumo Canyon. Comment
  UCR25011  Stachys pycnantha George K. Helmkamp 1981-8-7 s.n. San Luis Obispo Central Coast, north end of See Canyon in the Irish Hills, near Los Osos Valley 213 Comment
  UCR88712  Stachys rigida George K. Helmkamp, E. A. Helmkamp 1995-6-20 95-2- 16 San Luis Obispo Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road 400 Comment
  OBI83622  Stebbinsoseris heterocarpa David J. Keil, Travis Barrett 2016-3-23 33844 San Luis Obispo Southern foothills of San Luis Range. Wild Cherry Ranch W of Avila Beach. Survey area 10 120 Comment
  UCR161348  Stellaria media George K. Helmkamp, E. A. Helmkamp 2005-3-9 9106 San Luis Obispo Central Coast Hills, Irish Hills; See Canyon, 4.4 mi N of San Luis Bay Drive 186 Comment
  UCR161696  Stellaria nitens George K. Helmkamp, E. A. Helmkamp 2005-3-8 9054 San Luis Obispo Coastal Hills, Prefumo Canyon, north side of Irish Hills; 2.2 mi west of Los Osos Valley Road 122 Comment
  CAS-BOT-BC375156  Stephanomeria cichoriacea G. K. Helmkamp; E. A. Helmkamp 2000-9-2 5967 San Luis Obispo Irish Hills: Profumo Canyon, 2.2 mi W of Los Osos Valley Rd. 137 Comment
  RSA666858  Stephanomeria cichoriacea George K. Helmkamp, E. A. Helmkamp 2000-9-2 5967 San Luis Obispo Profumo Canyon, 2.2 mi W of Los Osos Valley Rd. 137 Comment
  UCD136233  Stephanomeria cichoriacea G. K. Helmkamp; E. A. Helmkamp 2000-9-2 5967 San Luis Obispo San Luis Obispo County: Irish Hills: Profumo Canyon, 2.2 miles west of Los Osos Valley Road. 137 Comment
  UCR118948  Stephanomeria cichoriacea George K. Helmkamp, E. A. Helmkamp 2000-9-2 5967 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road 137 Comment
  UCR25008  Stephanomeria cichoriacea George K. Helmkamp 1981-8-7 s.n. San Luis Obispo Central Coast, north end of See Canyon in the Irish Hills, near Los Osos Valley 213 Comment
  SD148273  Stipa miliacea G. K. Helmkamp 2000-9-2 5963 San Luis Obispo Irish Hills: Profumo Canyon, 2.2 mi W of Los Osos Valley Rd., roadsides 136 Comment
  UC1063484  Streptanthus albidus subsp. peramoenus P. L. Johannsen 1936-3-22 735 San Luis Obispo 1 3/4 mi sw San Luis Obispo (Plot 11); San Luis Obispo Quadrangle 106 Comment
  UC1063486  Streptanthus albidus subsp. peramoenus C. M. Belshaw 1936-3-25 1726 San Luis Obispo 3.6 mi ene Valencia Peak (Plot 11); Cayucos Quadrangle 396 Comment
  UC569974  Streptanthus albidus subsp. peramoenus C. M. Belshaw 1936-3-25 1726 San Luis Obispo 3.6 ene Valencia Peak; Cayucos Quadrangle 396 Comment
  UCR134400  Streptanthus albidus subsp. peramoenus George K. Helmkamp, E. A. Helmkamp 2001-4-29 6594 San Luis Obispo Irish Hills, Prefumo Cyn Rd., 2.8 miles west of Los Osos Valley Rd., SW of San Luis Obispo 91 Comment
  UC1119951  Symphoricarpos albus var. laevigatus H. C. Lee 1936-4-2 542 San Luis Obispo Head of Coon Creek; Port San Luis Quad. 304 Comment
  UC1119931  Symphoricarpos mollis H. C. Lee 1936-4-9 558 San Luis Obispo 1 mi ne Saddle Pk.; Port San Luis 426 Comment
  UCR118184  Symphoricarpos mollis George K. Helmkamp, E. A. Helmkamp 2000-9-2 5980 San Luis Obispo Irish Hills, See Canyon (S portion), c. 1.8 mi north of San Luis Bay Drive (N of Avila Beach) 91 Comment
  UCR118336  Symphoricarpos mollis George K. Helmkamp, E. A. Helmkamp 2000-9-2 5974 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road 137 Comment
  UC455795  Symphyotrichum subspicatum E. P. Unangst 1907-7-1 San Luis Obispo Perfumo Canyon, S. L. O. [San Luis Obispo] Comment
  OBI79971  Tanacetum parthenium David J. Keil 2013-7-6 31825 San Luis Obispo San Luis Range. Prefumo Canyon Road. Creek bottom just upstream of bridge 3 100 Comment
  UC2027238  Tanacetum parthenium David J. Keil 2013-7-6 31825 San Luis Obispo San Luis Range. Prefumo Canyon Road. Creek bottom just upstream of bridge 3. Comment
  UCR161461  Taraxacum officinale George K. Helmkamp, E. A. Helmkamp 2005-3-9 9110 San Luis Obispo Central Coast Hills, Irish Hills; See Canyon, 5.7 mi N of San Luis Bay Drive 399 Comment
  OBI83513  Tauschia hartwegii Michael Walgren 2013-2-19 302 San Luis Obispo San Luis Range near the peak of Davis Peak, Montana de Oro State park 493 Comment
  CAS-BOT-BC399680  Thalictrum fendleri Alice Eastwood; John Thomas Howell 1938-6-14 5925 San Luis Obispo Prefumo Canyon Comment
  OBI44865  Thermopsis californica var. californica David J. Keil 1979-7-1 13128 San Luis Obispo Ridge between Prefumo and See Cyns. About 5 mi from jctn of los Osos Valley Rd and Prefumo Cyn Rd Comment
  UC2013217  Thermopsis macrophylla David Keil 1979-7-1 13128 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  CDA25260  Thysanocarpus laciniatus G. D. Barbe, J. L. Johnson 1973-3-13 1135 San Luis Obispo Bishop Canyon Road (See Canyon) north of Avila Beach. 0 Comment
  SBBG114850  Thysanocarpus laciniatus C. B. Hardham 1967-5-18 14383 San Luis Obispo Diablo Cyn Comment
  SBBG96384  Torilis arvensis C. F. Smith 1987-5-28 12109 San Luis Obispo near summit of Prefumo Cyn along rd into Los Osos Valley Comment
  A347248  Toxicodendron diversilobum A. Eastwood 1926-5-3 13784 Unknown Avila Comment
  A347309  Toxicodendron diversilobum A. Eastwood 1926-5-3 13788 Unknown Avila Comment
  CAS-BOT-BC169225  Toxicodendron diversilobum John Thomas Howell; Alice Eastwood 1938-6-14 5921 San Luis Obispo Prefumo Canyon Comment
  CAS-BOT-BC169230  Toxicodendron diversilobum Alice Eastwood 1926-5-3 13784 San Luis Obispo Avila Comment
  CAS-BOT-BC169231  Toxicodendron diversilobum Alice Eastwood 1926-5-3 13788 San Luis Obispo Avila Comment
  UCR42813  Trifolium David J. Keil 1979-4-29 13055 San Luis Obispo Upper Prefumo Canyon Road Comment
  UCR142585  Trifolium depauperatum var. truncatum George K. Helmkamp, E. A. Helmkamp 2000-4-20 5422 San Luis Obispo Central Coast, road crest between See Canyon Road and Prefumo Canyon Road, SW of San Luis Obispo 320 Comment
  CDA4339  Trifolium hirtum G. K. Helmkamp, E. A. Helmkamp 2000-4-2 5412 San Luis Obispo Central Coast; road crest between See Canyon Road and Profumo Canyon Road, SW of San Luis Obispo Comment
  UCR115582  Trifolium hirtum George K. Helmkamp, E. A. Helmkamp 2000-4-20 5412 San Luis Obispo Central Coast, road crest between See Canyon Road and Prefumo Canyon Road, SW of San Luis Obispo 320 Comment
  UCR118377  Trifolium hirtum George K. Helmkamp, E. A. Helmkamp 1998-7-1 4248 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road 244 Comment
  UCR161321  Trifolium hirtum George K. Helmkamp, E. A. Helmkamp 2005-3-8 9082 San Luis Obispo Central Coast Hills., Irish Hills; crest of Prefumo Canyon Road, 5.2 mi west of Los Osos Valley Road 409 Comment
  OBI75252  Trifolium subterraneum David J. Keil 2011-5-12 31013 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 254 Comment
  UCR115559  Trifolium subterraneum George K. Helmkamp, E. A. Helmkamp 2000-4-20 5415 San Luis Obispo Central Coast, Irish Hills, north of Avila Beach, See Canyon, 7.4 mi south of Los Osos Valley Road 213 Comment
  UCR115784  Trifolium subterraneum George K. Helmkamp, E. A. Helmkamp 2000-4-19 5379 San Luis Obispo Central Coast, Irish Hills (SSW of San Luis Obispo). See Cyn., 3 mi south of Los Osos Valley Rd, up Prefumo Cyn. to crest, and down See Cyn. to the site 213 Comment
  UCR142584  Trifolium willdenovii George K. Helmkamp, E. A. Helmkamp 2000-4-20 5419 San Luis Obispo Central Coast, road crest between See Canyon Road and Prefumo Canyon Road, SW of San Luis Obispo 320 Comment
  CAS-BOT-BC451779  Triglochin maritima R. F. Hoover 1964-6-10 9015 San Luis Obispo Avila Comment
  SBBG46690  Triphysaria eriantha subsp. eriantha L. W. Edge 1973-4-9 268 San Luis Obispo near summit of Prefumo Cyn Rd Comment
  CAS-BOT-BC199345  Vaccinium ovatum R. F. Hoover 1963-5-4 8561 San Luis Obispo Upper Coon Creek, San Luis Range Comment
  OBI72821  Vaccinium ovatum Michael Walgren 2010-4-29 144 San Luis Obispo Irish Hills, Montana de Oro State Park. New property acquisition known as the 160 acre "Basseri" property at 4840 See Canyon rd, approx 8 mi from Los Osos Valley rd and 0.5 mi from jctn with Perfumo Cyn rd. Inland portion of property on inland side of See 301 Comment
  UCD125983  Verbena lasiostachys var. scabrida G. K. Helmkamp; E. A. Helmkamp 2000-9-2 5964 San Luis Obispo San Luis Obispo County: Iris Hills: See Canyon (south portion), ca. 1.8 miles north of San Luis Bay Drive (north of Avila Beach). 91 Comment
  UCR119348  Verbena lasiostachys var. scabrida George K. Helmkamp, E. A. Helmkamp 2000-9-2 5977 San Luis Obispo Irish Hills, See Canyon (S portion), c. 1.8 mi north of San Luis Bay Drive (N of Avila Beach) 91 Comment
  UCR97409  Verbena lasiostachys var. scabrida George K. Helmkamp 1997-3-8 1448 San Luis Obispo Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd. 107 Comment
  OBI75244  Vicia americana var. americana David J. Keil 2011-5-12 31021 San Luis Obispo San Luis Range. Irish Hills. Madonna - Twisselmann Ranch, accessed from Prefumo Canyon Road. 333 Comment
  UC1130211  Vicia sativa C. M. Belshaw 1936-3-25 1724 San Luis Obispo 5.6 mi ssw Hollister Peak; Cayucos Quad. 304 Comment
  UCR134393  Vicia sativa subsp. sativa George K. Helmkamp, E. A. Helmkamp 2001-4-29 6587 San Luis Obispo Irish Hills, Clark Valley Rd., 4.2 miles south of Los Osos Valley Rd, E of Los Osos 274 Comment
  UCR88711  Vicia sativa subsp. sativa George K. Helmkamp, E. A. Helmkamp 1995-6-20 95-2- 27 San Luis Obispo Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road 400 Comment
  UCD111166  Viola purpurea subsp. quercetorum G. K. Helmkamp; E. A. Helmkamp 2000-4-20 5409 San Luis Obispo San Luis Obispo County: Central Coast: Road crest between See Cyn. Rd. and Prefumo Cyn. Rd. (SW of San Luis Obispo). 320 Comment
  UCR115585  Viola purpurea subsp. quercetorum George K. Helmkamp, E. A. Helmkamp 2000-4-20 5409 San Luis Obispo Central Coast, road crest between See Canyon Road and Prefumo Canyon Road, SW of San Luis Obispo 320 Comment
  UCR161698  Viola purpurea subsp. quercetorum George K. Helmkamp, E. A. Helmkamp 2005-3-8 9065 San Luis Obispo Central Coast Range, Irish Hills, Prefumo Canyon Road, 4.6 mi west of Los Osos Valley Road 316 Comment
  OBI44866  Zeltnera davyi David J. Keil 1979-7-1 13127 San Luis Obispo Ridge between Prefumo and See Cyns. About 5 mi from jctn of los Osos Valley Rd and Prefumo Cyn Rd Comment
  UC2013202  Zeltnera davyi David Keil 1979-7-1 13127 San Luis Obispo Ridge between Prefumo and See Canyons. About 5 miles from junction of Los Osos Valley Road and Prefumo Canyon Road. Comment
  UCR161340  Zigadenus fremontii George K. Helmkamp, E. A. Helmkamp 2005-3-8 9084 San Luis Obispo Central Coast Hills., Irish Hills; crest of Prefumo Canyon Road, 5.2 mi west of Los Osos Valley Road 409 Comment



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