Search Results — 2000 specimen records retrieved (1386 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA0025757  Abronia latifolia Lyman Benson 1930-8-15 2563 San Mateo San Gregorio. Comment
  UCSC004916  Abronia latifolia Monica Larenas 1985-6-1 20 San Mateo Hwy 1, 0.5 mi S of Pescadero State Beach Comment
  CAS-BOT-BC451134  Acaena pinnatifida var. californica Dr. E. L. Greene 1902-5-1 688 San Mateo Crystal Springs Lake; Pacific Coast Comment
  CAS-BOT-BC451123  Acaena pinnatifida var. californica George Oberlander 1950-5-6 876 San Mateo Grassland about San Andreas Lake; San Francisco Watershed Reserve Comment
  CAS-BOT-BC219600  Acanthomintha duttonii A. D. E. Elmer 1903-5-1 4538 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC219605  Acanthomintha duttonii David D. Keck 1940-5-15 5034 San Mateo Emerald Lake, west of Redwood City Comment
  UC517976  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  RSA18365  Acanthomintha obovata subsp. duttonii Carl B. Wolf 1929-5-24 3723 San Mateo upper Emeral Lake, Back of Redwood City Comment
  POM222809  Acer macrophyllum S. S. Berry 1909-3-31 s.n. San Mateo San Francisquito Creek. 61 Comment
  CAS-BOT-BC21584  Achillea millefolium Fred Hemphill 1973-5-6 760 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC21597  Achillea millefolium John H. Thomas 1961-5-7 9311 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC21576  Achillea millefolium David D. Keck 1939-7-1 5011 San Mateo 3 mi. S. of Pescadero, 1 mile from the ocean 60 Comment
  SEINET10758616  Achillea millefolium Thomas B. Croat 1966-6-20 Croat 1997 San Mateo 1 mile N of Montara, sandy banks along Pacific. Comment
  UCSB18197  Achillea millefolium Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 76 Comment
  RSA302205  Achillea millefolium var. arenicola Jim Shevock 1970-11-25 550 San Mateo Along Hwy 1 9 Comment
  JROH455  Achyrachaena mollis Arthur Spiegler 1952-5-10 70 San Mateo Jasper Ridge Biological Preserve, Stanford University; north of Searsville Lake Comment
  JROH471  Achyrachaena mollis John Hunter Thomas 1982-5-18 20939 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing oval Comment
  CAS-BOT-BC29103  Achyrachaena mollis W. R. Dudley 1899-5-14 s.n. San Mateo Fields southwest of Baden Comment
  JROH2054  Acmispon americanus var. americanus John H. Thomas 1967-6-1 12954 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI13045  Acmispon americanus var. americanus Lewis S. Rose 1964-9-5 64071 San Mateo Emerald Lake, W of Redwood City 244 Comment
  JROH2067  Acmispon glaber var. glaber W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH2070  Acmispon glaber var. glaber D. E. Breedlove 1971-5-31 19376 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake 125 Comment
  JROH2053  Acmispon parviflorus G. C. Kimber & Lucile Roush 1918-4-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2099  Acmispon wrangelianus John H. Thomas 1974-4-12 17145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2102  Acmispon wrangelianus John Hunter Thomas 1978-4-25 19152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC391673  Actaea rubra A. D. E. Elmer 1903-5-1 4703 San Mateo Butano Creek Comment
  SDSU2646  Adelinia grandis D. F. Howe 1967-4-14 4349 San Mateo San Francisco Game Reserve near San Bruno. 91 Comment
  JROH3581  Adenostoma fasciculatum var. fasciculatum Gelsomina Smith 1951-6-5 122 San Mateo Jasper Ridge Biological Preserve, Stanford University 121 Comment
Read comments
Feb 26 2015
  JROH3582  Adenostoma fasciculatum var. fasciculatum Oz Garton 1968-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18438  Adenostoma fasciculatum var. fasciculatum Carl B. Wolf 1927-6-29 570 San Mateo Near La Honda, Santa Cruz Mts. Comment
  CAS-BOT-BC65514  Adiantum aleuticum D. E. Breedlove 1973-9-26 35556 San Mateo Pescadero Creek County Park 365 Comment
  JROH2705  Aesculus californica Daniel Cohen 1953-4-11 27 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2708  Aesculus californica John H. Thomas 1971-5-30 15972 San Mateo Jasper Ridge Biological Preserve, Stanford University 120 Comment
  SBBG7505  Agoseris apargioides var. eastwoodiae H. and M. Dearing 1938-6-21 2038 San Mateo Golden Gate Comment
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Jan 8 2022
  RSA18512  Agoseris grandiflora C. B. Wolf 1927-7-14 608 San Mateo Summit of Kings Mountain Rd. Comment
  UC29378  Agoseris grandiflora var. grandiflora J. Burtt Davy Jun 21 1893-Jun 23 1893 1126 San Mateo Pilarcitos Lake and Canon Pilarcitos Lake and Canon Comment
  CAS-BOT-BC23018  Agoseris grandiflora var. grandiflora W. R. Dudley 1894-4-21 s.n. San Mateo San Mateo ravine Comment
  JROH495  Agoseris heterophylla John Hunter Thomas 1988-6-2 24493 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA18312  Agoseris heterophylla var. heterophylla C. B. Wolf 1927-7-14 599 San Mateo Summit of Kings Mountain Rd. Comment
  RSA18497  Agoseris heterophylla var. heterophylla C. B. Wolf 1927-7-14 623 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  JEPS82921  Agrostis blasdalei James A. West 1983-8-14 189 San Mateo exposed coastal bluffs ca 2 km s of the Pigeon Point Lighthouse, +/- overlooking Columbia Beach Comment
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Dec 20 2015
  CAS-BOT-BC127465  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo State Highway 1, ca. 5-6 miles south of San Francisco. Comment
  JROH4787  Agrostis exarata John Rawlings 2007-5-18 1037 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1, uphill side of trail, east of first redwood grove. 118 Comment
  SACT000091  Agrostis exarata S. Smith, Malcolm Nobs 1949-8-25 San Mateo Comment
  UC1100234  Agrostis exarata Malcolm A. Nobs, S. Galen Smith 1949-8-26 1612 San Mateo ca 1 mi s Pigeon Point Comment
  UCD52248  Agrostis exarata var. microphylla Collector unknown 1925-6-15 2115 San Mateo Pescadero - Santa Cruz Rd. Comment
  SJSU15849  Agrostis pallens John Rawlings, Ken Hickman 2015-6-8 1574 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH4805  Agrostis stolonifera Toni Corelli 2006-9-20 339 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Trail 12, upper embankment just above Corte Madera Creek. 108 Comment
  JROH4808  Agrostis stolonifera John Rawlings 2009-7-23 1047 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry creek bed of San Francisquito Creek about 100 yards upstream from the entrance path to the creek nearest the Dennis Martin site. 71 Comment
  UCD53588  Agrostis stolonifera Malcolm A. Nobs; S. Galen Smith 1949-8-25 1550 San Mateo Sharp Park. Comment
  JROH4824  Aira caryophyllea John H. Thomas 1966-4-22 11570 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  RSA145198  Aira caryophyllea John H. Thomas 1958-3-19 7050 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 30 Comment
  CAS-BOT-BC138244  Aira caryophyllea var. caryophyllea John H. Thomas 1971-5-2 15833 San Mateo Near intersection of Canada Road and Edgewater Road about three miles westward from Redwood City. 152 Comment
  JROH4301  Alisma triviale John Hunter Thomas 1981-7-12 20679 -1 San Mateo Jasper Ridge Biological Preserve, Stanford University; on lake bank Comment
  JROH4302  Alisma triviale Toni Corelli 2005-8-10 301 San Mateo Jasper Ridge Biological Preserve, Stanford University; offshoot of main creek in wet area along new bridge near beginning of trail 12 109 Comment
  CAS-BOT-BC467291  Allium dichlamydeum Walter Knight; Irja Knight 1964-5-30 603 San Mateo North facing slope, Colma Canyon Comment
  CAS-BOT-BC469037  Allium falcifolium A. D. E. Elmer 1903-4-1 4831 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC132026  Allium peninsulare var. franciscanum D. E. Breedlove 1963-5-13 4942 San Mateo On the SE corner of the junction of Crystal Springs Road and Polhemus Road, W of San Mateo Comment
  CAS-BOT-BC132028  Allium peninsulare var. franciscanum George Oberlander 1950-5-21 929 San Mateo Grassland, north of San Andreas Lake Comment
  CAS-BOT-BC132030  Allium peninsulare var. franciscanum L. R. A. 1902-5-4 2411 San Mateo Woodside Comment
  CAS-BOT-BC132035  Allium peninsulare var. franciscanum Alice Eastwood 1912-6-10 s.n. San Mateo Crystal Springs Comment
  JROH4561  Allium peninsulare var. franciscanum Toni Corelli 2003-5-28 259 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  POM169411  Allium peninsulare var. franciscanum C. F. Baker 1902-5-10 809 San Mateo Crystal Springs Lake. Comment
  JROH4562  Allium triquetrum John Rawlings, Toni Corelli 2012-5-15 1122 San Mateo Jasper Ridge Biological Preserve, Stanford University. West bank of Bear Creek at its crossing of Road H near boundary fence. 82 Comment
  JROH1329  Alnus rhombifolia John Hunter Thomas 1992-5-26 25351 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek near bridge & below the dam Comment
  POM222895  Alnus rhombifolia S. S. Berry 1909-2-27 s.n. San Mateo San Francisquito Creek. 61 Comment
  CAS-BOT-BC169339  Alnus rubra J. W. Gillespie 1925-4-18 s.n. San Mateo Ano [Ano] Nuevo Pt. Comment
  CAS-BOT-BC169346  Alnus rubra Lewis S. Rose 1955-11-7 55189 San Mateo Tunitas stream banks 30 Comment
  RSA181202  Alnus rubra John H. Thomas 1965-11-26 11456 San Mateo At intersection of Tunitas Creek Road and Lobos Creek cutoff. 122 Comment
  UC5355  Alnus rubra J. Burtt Davy 1895-4-21 1062 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC137920  Alopecurus saccatus David D. Keck 1932-5-6 1472 San Mateo Burlingame. North city limits. Comment
  LA206319  Alopecurus saccatus D. Keck; 1932-5-6 1472 San Mateo Burlingame, N city limits Comment
  SJSU7593  Amaranthus deflexus C. A. Staicer 1976-9-26 San Mateo 91 Atherton Lane, Atherton Comment
  SJSU15405  Amaranthus spinosus Toni Corelli 2011-8-25 710 San Mateo Ano Nuevo State Park, along Hwy. 1 south of main entrance 29 Comment
  JROH4575  Amaryllis belladonna Ann Lambrecht 2007-9-5 43 San Mateo Jasper Ridge Biological Preserve, Stanford University. At old garden near Douglas iris site. Comment
  CAS-BOT-BC44925  Ambrosia chamissonis Robert T. Orr 1961-7-13 s.n. San Mateo Ano Nuevo Island Comment
  CAS-BOT-BC44933  Ambrosia chamissonis David D. Keck 1931-10-5 1285 San Mateo 1 mile north of Salada Beach Comment
  CHSC57078  Ambrosia chamissonis Steven Triano 1988-5-24 186 San Mateo Coastal sand dunes W of Hwy. 1 ca 0.2 mi N of Pescadero Road. 9 Comment
  OBI49178  Ambrosia chamissonis Lewis S. Rose 1938-8-14 38226 San Mateo El Granada 3 Comment
  SBBG45023  Ambrosia chamissonis L. S. Rose 1935-9-29 35653 San Mateo Granada 3 Comment
  SEINET3146786  Ambrosia chamissonis L. S. Rose 1938-8-14 38226 San Mateo El Granada 3 Comment
  UC577093  Ambrosia chamissonis Lewis S. Rose 1935-9-29 35653 San Mateo sandy ocean beach Granada 3 Comment
  CAS-BOT-BC44929  Ambrosia chamissonis Lewis S. Rose 1935-9-29 35653 San Mateo Granada 3 Comment
  SEINET11855111  Ambrosia chamissonis Unknown 1932-1 9246 San Mateo Half Moon Bay Comment
  CAS-BOT-BC55527  Ambrosia psilostachya W. R. Dudley 1902-9-21 s.n. San Mateo On causeway over Crystal Spring Reservoir Comment
  RSA181301  Amelanchier pallida John H. Thomas 1965-5-15 10657 San Mateo Santa Clara County: Mt. Hamilton Range road banks 1 mile toward San Jose along the Hwy from Smith Creek. Comment
  CAS-BOT-BC136831  Amelanchier utahensis Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  JROH3593  Amelanchier utahensis Roxana Stinchfield 1914-4-26 145 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Dam Comment
  JROH3594  Amelanchier utahensis John H. Thomas 1973-5-5 16766 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC57108  Ammophila arenaria Steven Triano 1988-5-24 203 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  CAS-BOT-BC214046  Amsinckia Mrs. E. C. Sutliffe 1933-5-25 s.n. San Mateo Purissima Canyon Comment
  CAS-BOT-BC214048  Amsinckia Lewis S. Rose 1933-5-17 33174 A San Mateo Redwood City Comment
  JROH1344  Amsinckia menziesii John H. Thomas 1966-4-29 11589 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1352  Amsinckia menziesii John Hunter Thomas 1987-4-7 24178 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Dam Comment
  JROH3373  Anagallis minima John H. Thomas 1973-4-14 16563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3374  Anagallis minima John H. Thomas 1974-4-25 17214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR254763  Anaphalis margaritacea Peter Rubtzoff 1978-9-16 9270 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC45187  Anaphalis margaritacea Walter Knight; Irja Knight 1964-3-15 576 San Mateo San Bruno Mountain, Colusa Canyon Comment
  CAS-BOT-BC45267  Ancistrocarphus filagineus LeRoy Abrams 1904-4-10 s.n. San Mateo Woodside to Crystla Springs at the junction of Redwood Rd. Comment
  UC634955  Anemone oregana Herbert L. Mason 1927-4-24 3698 San Mateo La Honda Comment
  UC766210  Anemone oregana R. F. Hoover 1939-3-3 3894 San Mateo above Portola (on La Honda rd) Comment
  UC174202  Angelica hendersonii Katharine Brandegee San Mateo Tobin Comment
Read comments
Apr 5 2008
  JROH189  Angelica tomentosa John Hunter Thomas 1986-5-17 24052 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH190  Angelica tomentosa John Hunter Thomas 1989-6-17 24776 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC273174  Anisocarpus madioides W. R. Dudley 1895-6-6 4209 San Mateo Santa Cruz Mountain Peninsula. Banks of Woods of Conifers near Pescadero Creek - also on summit of Big Basin Comment
  CAS-BOT-BC280637  Anthoxanthum occidentale C. F. B. 1902-1-15 247 San Mateo West side King's Mountain Comment
  UCD85325  Anthoxanthum occidentale August L. Hormay 1932-3-6 s.n. San Mateo Pescadero Blumequist Mill - Redwood belt. Comment
  JROH196  Anthriscus caucalis John H. Thomas 1973-4-14 16554 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR101615  Anthriscus caucalis George K. Helmkamp, E. A. Helmkamp 1998-5-16 3745 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  UC555316  Aphanes occidentalis Herbert L. Mason 1927-4-23 3688 San Mateo Summit of road between La Honda and Pescadero Creek Comment
  CAS-BOT-BC454479  Aphanes occidentalis Walter & Irja Knight 1965-3-21 949 San Mateo North Power Line Ridge, San Bruno Mountain Comment
  SEINET3161271  Aphyllon comosum W. A. Setchell 1908-8-30 sn San Mateo Farallone City Comment
  CAS-BOT-BC451563  Aponogeton distachyos Peter Rubtzoff 1954-2-11 1451 San Mateo Skyline Blvd. near the junction of Chinese Cemetery Road. Comment
  CAS-BOT-BC392064  Aquilegia eximia A. D. E. Elmer 1903-7-1 4952 San Mateo Crystal Springs Lake Comment
  UC311123  Aquilegia eximia A. D. E. Elmer 1903-1 4952 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC405851  Aquilegia formosa Alice Eastwood 1912-6-10 340 San Mateo Crystal springs Comment
  UCSC007720  Aquilegia formosa Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC17324  Arabis blepharophylla W. R. Dudley 1894-4-1 s.n. San Mateo Santa Cruz Peninsula. San Bruno Hills. Comment
  HSC6552  Arabis blepharophylla Lincoln Constance, Rimo Bacigalupi, C. R. Bell 1951-3-25 3369 San Mateo SE side of Colma Canyon 61 Comment
  UC676755  Arabis blepharophylla Reed C. Rollins 1941-3-22 2950 San Mateo 2 mi se Daly City; San Bruno Hills Comment
  UC967208  Arabis blepharophylla L. Constance, R. Bacigalupi, and C. R. Bell 1951-3-25 3369 San Mateo se side Colma Canyon 60 Comment
  RSA130396  Arabis blepharophylla W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula: 1st high hill between Salada Valley and Colma. Comment
  CAS-BOT-BC128669  Arbutus menziesii Phillip C. Wheeler 1965-5-25 s.n. San Mateo Brisbane Canyon - San Bruno Mountain Comment
  CAS-BOT-BC128675  Arbutus menziesii W. R. Dudley 1904-4-10 s.n. San Mateo Alpine Road, Corte Madera Creek - Santa Cruz Mountain Peninsula Comment
  JROH1920  Arbutus menziesii John H. Thomas 1974-5-29 17397 San Mateo Jasper Ridge Biological Preserve, Stanford University; near riders' shack Comment
  UC1137192  Arctostaphylos G. Ward 1940-8-5 2 San Mateo San Bruno Mt. San Mateo Quadrangle Comment
  CAS-BOT-BC24129  Arctostaphylos andersonii Elmer I. Applegate 1895-3-9 304 San Mateo Woodside Comment
  CAS-BOT-BC24172  Arctostaphylos andersonii John H. Thomas 1968-12-18 14876 San Mateo Along Skyline Blvd. between Gulch Road and la Honda Rd. 457 Comment
  CAS-BOT-BC25317  Arctostaphylos andersonii Carl B. Wolf 1930-11-6 1811 San Mateo 2 miles N of the summit of Kings Mt., Skyline Blvd. 640 Comment
  LA42267  Arctostaphylos andersonii E. C. Sutliffe; 1934-2-2 sn San Mateo Kings Mountain Comment
  UCD50391  Arctostaphylos andersonii Robert E. Preston 2001-6-1 1537 San Mateo Ca. 7 mi. nw of Boulder Creek. 658 Comment
  UCD50392  Arctostaphylos andersonii Robert E. Preston 2001-5-29 1533 San Mateo Ca. 9 mi nnw of Boulder Creek. 377 Comment
  SEINET12001814  Arctostaphylos andersonii W. R. Dudley 1906-1 6 San Mateo near Crystal Springs Lake, Santa Cruz Mts., Santa Cruz Peninsula Comment
  UCD50305  Arctostaphylos andersonii var. imbricata Walter and Irja Knight; Elizabeth McClintock 1982-3-25 4425 San Mateo Kamchatka Point, San Bruno Mountain. Comment
  CAS-BOT-BC23501  Arctostaphylos crustacea Brandegee 1889-4-1 8 San Mateo Redwood City Comment
  CAS-BOT-BC23505  Arctostaphylos crustacea W. R. Dudley 1894-3-23 s.n. San Mateo Road to La Honda Comment
  CAS-BOT-BC23509  Arctostaphylos crustacea L. S. Rose 1942-3-30 42007 San Mateo Rocky brushy hills, Kings Mountain 600 Comment
  CAS-BOT-BC23514  Arctostaphylos crustacea John Thomas Howell 1931-1-18 5725 San Mateo King Mt. Comment
  LA26778  Arctostaphylos crustacea Lewis S. Rose; 1942-3-30 42007 San Mateo Kings Mountain 600.0 Comment
  SEINET5788098 Image available Arctostaphylos crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain, CA Comment
  SEINET11989199  Arctostaphylos crustacea E. McClintock, Knight, W.; Knight, I. 1982-1 4646 San Mateo San Pedro County Park, near Pacifica Comment
  JROH1933  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-4-25 17208 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville end of ridge Comment
  JROH1944  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1987-4-30 24211 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA681636  Arctostaphylos cruzensis Annuschka Deb 1989-1-20 1 San Mateo Woodside. Comment
Read comments
Mar 21 2015
  SJSU6083  Arctostaphylos glandulosa S. H. Casey 1969-5-18 259 San Mateo near summit of San Bruno Mt Comment
  SEINET11988208  Arctostaphylos glandulosa W. Knight, Raiche, R. 1982-1 4418 San Mateo San Bruno Mountain, Buckeye Canyon on Oak Ridge 76 Comment
  CAS-BOT-BC24732  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4418 San Mateo San Bruno Mtn. Buckeye Canyon on Oak Ridge. 76 Comment
  CAS-BOT-BC24495  Arctostaphylos imbricata Peter H. Raven 1950-2-25 1383 San Mateo W. end of ridge behind NBC station, San Bruno Mtns. 457 Comment
  CAS-BOT-BC24499  Arctostaphylos imbricata B. A. Stein 1981-3-1 442 San Mateo San Bruno Mt., ne. summit ridge along Radio Rd. 396 Comment
  OBI14661  Arctostaphylos imbricata Robert F. Hoover 1964-4-24 8742 San Mateo San Bruno Mt Comment
  SEINET11989203  Arctostaphylos montaraensis E. McClintock, Knight, W.; Knight, I. 1982-1 4643 San Mateo San Bruno Mountain 320 Comment
  SEINET11989284  Arctostaphylos montaraensis W. Knight, Knight, I.; McClintock, E. 1982-1 4446 San Mateo Pacific Rock area, San Bruno Mt Comment
  CAS-BOT-BC39820  Arctostaphylos pacifica Arthur Menzies 1962-2-18 s.n. San Mateo San Bruno Mountain Comment
  JEPS98893  Arctostaphylos pacifica James Roof 1961-4-18 San Mateo type locality; Pacific Ridge, San Bruno Mountain Comment
  CAS-BOT-BC44735  Arctostaphylos regismontana Josephine D. Randall 1908-3-28 s.n. San Mateo Santa Cruz Peninsula - King's Mt. Road Comment
  CAS-BOT-BC44739  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain Comment
  CAS-BOT-BC44740  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain Comment
  RSA636750  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24636 San Mateo NW side of Montara Mtn. 150 Comment
  SBBG28866  Arctostaphylos regismontana Mrs. E. C. Sutliffe 1934-2-2 San Mateo King's Mtn Comment
  UC1120829  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 6 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 426 Comment
  UC1120836  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 5 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 365 Comment
  UC1120846  Arctostaphylos regismontana C. M. Belshaw 1935-1-25 1466 San Mateo Kings Mt. Rd 4.7 mi w Woodside; Santa Cruz Quadrangle 609 Comment
  CAS-BOT-BC44669  Arctostaphylos sensitiva George Oberlander 1950-4-2 521 San Mateo Southern Cahill Ridge Comment
  JEPS48594  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 543 San Mateo San Gregorio watershed Santa Cruz Mts. (sw San Mateo Co.) Comment
  RSA139987  Arctostaphylos tomentosa subsp. crustacea A. E. Wieslander 1929-3-19 46 San Mateo Kings Mt. Road, head of Peter's Creek. 701 Comment
  RSA636843  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24644 San Mateo NW side of Montara Mtn. 150 Comment
  UC565410  Arctostaphylos tomentosa subsp. crustacea Chas. M. Belshaw 1936-1-25 1464 San Mateo Kings Mountain rd 4.5 mi w Woodside; South Coast Range Comment
  UC702542  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain Kings Mountain (type locality) 600 Comment
  UC82933  Arctostaphylos tomentosa subsp. crustacea Katharine Brandegee April 1889 San Mateo Redwood City Comment
  POM367466  Arctostaphylos tomentosa subsp. tomentosiformis L. S. Rose 1949-3-18 49006 San Mateo Hills west of Belmont. 91 Comment
  CAS-BOT-BC46834  Arctostaphylos uva-ursi Walter Knight; Irja Knight 1981-3-1 4055 San Mateo fire road edge about 200 yards east of summit parking lot of San Bruno Mountain Comment
  JEPS108605  Arctostaphylos uva-ursi Roger Raiche 1984-7-18 10153 San Mateo San Bruno Mountain, Kamchatka Point Comment
  SEINET11989206  Arctostaphylos uva-ursi E. McClintock, Knight, W.; Knight, I. 1982-1 4637 San Mateo NE of parking lot, San Bruno Mountain 335 Comment
  SEINET11987484  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4201 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt Comment
  CAS-BOT-BC520412  Armeria Daniel Cohen 1953-5-9 88 San Mateo Between San Gregorio and Pescadero Comment
  JEPS26346  Armeria maritima subsp. californica Adele Lewis Grant 1917-5-6 940 San Mateo nr. Pescadero; Pebble Beach 3 Comment
  POM268911  Armeria maritima subsp. californica Lyman Benson 1930-6-14 2149 San Mateo San Gregorio. 30 Comment
  POM305424  Armeria maritima subsp. californica Henry J. Ramsey, Henry J. Ramsey 1939-10-7 747 San Mateo San Mateo Comment
  RSA14196  Armeria maritima subsp. californica Carl B. Wolf 1927-1-29 173 San Mateo San Gregorio. Comment
  RSA6284  Arnica discoidea D. D. Keck 1932-5-11 1775 San Mateo East side of Kings Mountain, on Kings Mountain Road 350 Comment
  CAS-BOT-BC84881  Artemisia californica James McMurphy 1905-10-1 s.n. San Mateo Corte de Madera Creek Comment
  CAS-BOT-BC84885  Artemisia californica Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain, Point San Bruno Comment
  JROH517  Artemisia californica John H. Thomas 1978-9-24 19335 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH519  Artemisia douglasiana John Hunter Thomas 1981-9-24 20744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI17042  Artemisia douglasiana Lewis S. Rose 1965-9-4 65101 San Mateo Skyline Blvd & Half Moon Bay rd, Cahill ridge 244 Comment
  SEINET259096  Artemisia douglasiana Gordon H. True Jr. 1937-7-23 803 San Mateo San Mateo County: Along Salada Beach-Skyline Blvd. 61 Comment
  SEINET8734602 Image available Artemisia heterophylla Lewis S. Rose 1938-1 38232 San Mateo San Mateo 30 Comment
  RSA18383  Asclepias fascicularis C. B. Wolf 1927-7-1 s.n. San Mateo Above Emerald Lake, back of Redwood City Comment
  JROH4578  Asparagus officinalis subsp. officinalis John Hunter Thomas 1991-11-21 25100 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing of San Francisquito Creek Comment
  RSA184926  Aster chilensis L. S. Rose 1966-8-15 66083 San Mateo Pillar Point 5 Comment
  RSA128844  Aster chilensis W. R. Dudley 1895-9-21 s.n. San Mateo Meulo Park Comment
  RSA417642  Aster chilensis Edith A. Purer 1933-8-25 5521 San Mateo Spring Valley. Comment
  POM54249  Aster radulinus A. D. E. Elmer 1903-07 4973 San Mateo Portola Comment
  CAS-BOT-BC186767  Astragalus gambelianus James McMurphy 1906-5-8 s.n. San Mateo Head of Crystal Springs Lake Comment
  JROH1989  Astragalus gambelianus John H. Thomas 1967-5-10 12841 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET948343  Astragalus gambelianus Lois E. James 1947-1 1758 San Mateo Hills back of Redwood city Comment
  CAS-BOT-BC177974  Astragalus nuttallii var. virgatus C. F. Leitholdt 1894-7-1 s.n. San Mateo Pescadero Comment
  SEINET10775830  Astragalus pycnostachyus Charles F. Baker 1902-10-1 Baker 1744 San Mateo Pillar Point. Comment
  CAS-BOT-BC193094  Astragalus pycnostachyus var. pycnostachyus J. H. Thomas 1958-8-1 7372 San Mateo Just north of mouth of San Gregorio Creek 30 Comment
  RSA294164  Astragalus pycnostachyus var. pycnostachyus Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4225 San Mateo N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  UC136114  Athysanus pusillus C. F. Baker 1902-4-6 456 San Mateo Crystal Springs Lake Comment
  UCD39016  Atriplex californica Beecher Crampton 1962-6-11 6514 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  SBBG29939  Atriplex hortensis R. S. Ferris 1932-9-12 8270 San Mateo Bay Shore Hwy at Redwood City Comment
  JEPS118232  Atriplex prostrata Dean W. Taylor with Alison Colwell 2005-9-26 19492 San Mateo 1 mile south along the coast from Franklin Point, Ano Nuevo State Reserve 0 Comment
  JEPS109218  Atriplex triangularis D. W. Taylor 2005-9-26 19492 San Mateo 1 mile S along coast from Franklin Point, Ano Nuevo State Reserve. Comment
  UC463562  Atriplex triangularis L. R. Abrams and I. L. Wiggins 1930-11-13 175 San Mateo Skyline Blvd. 1 mi sw Colma; sw of Colma Comment
  CAS-BOT-BC146080  Avena barbata Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo San Bruno Mountains. In Glen Park Canyon. Above Brisbane. 91 Comment
  JROH4839  Avena barbata John H. Thomas 1967-3-26 12420 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4840  Avena barbata John H. Thomas 1967-5-12 12870 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA1749  Avena fatua T. C. Fuller 1971-6-1 19880 San Mateo 1 mile east of San Gregorio. 0 Comment
  JROH5780  Avena fatua John Rawlings 2016-4-26 1756 San Mateo Jasper Ridge Biological Preserve, Stanford University. On birder transect path on ridge-top near coast live oaks just south of serpentinite contact. 192 Comment
Read comments
Oct 31 2016
  UCD56091  Avena strigosa T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio. Comment
  UCD56092  Avena strigosa T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio. Comment
  CAS-BOT-BC98697  Baccharis douglasii W. R. Dudley 1893-12-8 s.n. San Mateo Mouth of San Francisquito Creek - Santa Cruz Mountain Peninsula Comment
  HSC5124  Baccharis douglasii L. S. Rose 1969-8-22 69099 San Mateo Skyline Blvd. and La Honda Rd. 610 Comment
  RSA226539  Baccharis douglasii E. K. Balls 1969-9-18 12172 San Mateo 5 miles south of junction Highway 84 and Highway 35 along La Honda Road. Comment
  JEPS59963  Baccharis glutinosa Lewis S. Rose 1969-8-22 69099 San Mateo Skyline Blvd. & La Honda Rd. 609 Comment
  UCR256527  Baccharis glutinosa Peter Rubtzoff 1976-10-5 8908 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC99523  Baccharis pilularis Ned Cahill 1974-4-18 118 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC99531  Baccharis pilularis W. R. Dudley 1895-10-19 s.n. San Mateo Near San Francisquito Creek, toward Searsville Comment
  CAS-BOT-BC99535  Baccharis pilularis Louis F. Pitelka 1974-5-28 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC99539  Baccharis pilularis P. C. Everett 1934-8-19 6068 San Mateo Pescadero 198 Comment
  UC87151  Baccharis pilularis C. F. Baker 1902-10-1 1740 San Mateo Pillar Point Pacific Coast Comment
Read comments
Feb 2 2012
  UC942901  Baccharis pilularis Lewis S. Rose 1949-9-20 49182 San Mateo Sharp Park Comment
  CAS-BOT-BC16631  Barbarea orthoceras Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. Between April Brook and Radio Road. Comment
  CAS-BOT-BC166963  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7962 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  POM272597  Barbarea vulgaris Lyman Benson 1929-3-15 1009 San Mateo Bank of San Francisquito Creek at Stanford Isolation Hospital. Comment
  JROH3913  Bellardia trixago John H. Thomas 1969-5-16 15047 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3914  Bellardia trixago John H. Thomas 1974-5-19 17382 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  SJSU783  Bellardia trixago M. Bogner 1943-4-24 San Mateo near Menlo Park Comment
  CAS-BOT-BC100195  Bellis perennis George Oberlander 1950-5-6 864 San Mateo on South Cahill Ridge Comment
  CAS-BOT-BC75883  Berberis pinnata Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain. Near top of mountain, not far from radio station. Comment
  CAS-BOT-BC75867  Berberis pinnata W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. Near pass to Calera Valley north of the Montara Mountains. Comment
  JROH1320  Berberis pinnata subsp. pinnata H. B. Hannibal 1910-10-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Sandstone Cave Comment
  RSA140621  Beta vulgaris John H. Thomas 1960-6-25 8796 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. alt. below 25 feet. 8 Comment
  UC662425  Bidens pilosa H. P. Chandler 1941-12-4 San Mateo 1/2 mi e of Half Moon Bay (along highway) Comment
  CAS-BOT-BC31091  Bolboschoenus maritimus Roxana S. Ferris 1920-8-11 2037 San Mateo Salt marsh near end of Embarcadero Road, Palo Alto Comment
  SEINET12276036  Boraginaceae M. T. Doutt 1931-1 607 San Mateo near Portola, along Pacific Ocean Comment
  CDA31372  Brachypodium sylvaticum Robin Breckenridge, K. Filippini 2010-2-17 PDR# 1463751 San Mateo Woodside: 1 Echo Lane. 0 Comment
  CDA36483  Brachypodium sylvaticum Ellen Gartside 2011-7-18 s.n. San Mateo Woodside; on deer trail north east from trail below Old La Honda Road. Comment
  UCD56896  Brachypodium sylvaticum K. Melo 2003-12-1 PDR 138751 9 San Mateo San Francisco Peninsula. Hwy. 84 at Grandview Terrace and Schilling Lake. Martin Creek drainage. Comment
  CAS-BOT-BC28047  Brassica fruticulosa Elizabeth McClintock; Paul Reeberg 1989-2-4 s.n. San Mateo San Bruno Mountains. Near horse corral, off Bayshore. Comment
  JROH1457  Brassica nigra D. E. Breedlove 1971-5-31 19364 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC36671  Brassica oleracea J. Ed. McClellan; Bonnie McClellan 1972-3-22 s.n. San Mateo In abandoned field on Highway 1 opposite Princeton. Comment
  JROH1463  Brassica rapa John H. Thomas 1975-4-5 17707 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC36793  Brassica rapa John H. Thomas 1971-10-27 16027 San Mateo Near intersection of Alpine Road and Interstate Highway 280, behind the Stanford Campus. Comment
  JROH4872  Briza maxima John Hunter Thomas 1988-6-1 24492 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area below dam. Comment
  JROH4883  Briza minor John H. Thomas 1973-4-14 16557 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4891  Briza minor John Hunter Thomas 1991-4-13 24990 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM199078  Briza minor A. D. E. Elmer 1903-05 4912 San Mateo Crystal Springs Lake. Comment
  UCD57381  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  UCR121574  Briza minor George K. Helmkamp, E. A. Helmkamp 1999-6-28 5006 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  UCR122969  Briza minor George K. Helmkamp, E. A. Helmkamp 2001-6-2 6791 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  SEINET12044724  Brodiaea coronaria H. R. Davis 1920-1 s.n. San Mateo near Menlo Park, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC484350  Brodiaea elegans subsp. elegans W. R. Dudley 1893-5-27 s.n. San Mateo By road to Searsville Comment
  JROH4586  Brodiaea terrestris subsp. terrestris Elmer I. Applegate 1895-5-11 700 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM169541  Brodiaea terrestris subsp. terrestris E. B. Copeland 1903-6-5 3297 San Mateo Montara Point. Comment
  UC72476  Brodiaea terrestris subsp. terrestris Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  CAS-BOT-BC483169  Brodiaea terrestris subsp. terrestris John H. Thomas 1967-5-2 12818 San Mateo Along Skyline Blvd., 0.4 miles S of Black Mountain intersection, Hillsborough Comment
  CAS-BOT-BC483175  Brodiaea terrestris subsp. terrestris James McMurphy 1906-5-8 s.n. San Mateo Between Woodside and Byre's Store Comment
  UCD58280  Bromus carinatus Elizabeth Wilson 1940-6-19 s.n. San Mateo Woodside Mountains. Comment
  CAS-BOT-BC148990  Bromus carinatus var. carinatus John H. Thomas 1961-5-7 9256 San Mateo San Bruno Mountain in northern part of county. 914 Comment
  JROH4892  Bromus carinatus var. carinatus John Hunter Thomas 1966-4-13 11558 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4901  Bromus carinatus var. carinatus John Rawlings 2013-4-23 1143 San Mateo Jasper Ridge Biological Preserve, Stanford University. Shaded, northwest-facing slope of small drainage about 100 meters upstream from Trail 11 at the upper footbridge. 133 Comment
  UC766920  Bromus carinatus var. carinatus R. F. Hoover 1940-9-1 4549 San Mateo La Honda Summit Comment
  CAS-BOT-BC156172  Bromus catharticus Elizabeth McClintock; Paul Reeberg 1989-2-4 s.n. San Mateo San Bruno Mountains. Above Randolph Avenue. 53 Comment
  CAS-BOT-BC155137  Bromus hordeaceus Ned Cahill 1974-4-29 175 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC155140  Bromus hordeaceus Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine. Comment
  JROH4915  Bromus hordeaceus Duncan M. Porter 1960-4-29 667 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch Comment
  JROH4918  Bromus hordeaceus John H. Thomas 1963-5-15 10093 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4926  Bromus hordeaceus John Hunter Thomas 1985-5-22 23673 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA181249  Bromus laevipes John H. Thomas 1961-5-7 9256 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  POM285930  Bromus madritensis Lyman Benson 1935-5-5 6544 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  RSA195570  Bromus madritensis John H. Thomas 1966-4-24 11584 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH4947  Bromus madritensis subsp. rubens John H. Thomas 1965-4-28 10594 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204676  Bromus marginatus H. F. Copeland 1903-6-10 1630 San Mateo Montara Point. Comment
  RSA18330  Bromus maritimus C. B. Wolf 1929-5-10 3705 San Mateo coast at Pigeon Pt. So. of Pescadero Comment
  SJSU16032  Bromus maritimus John Rawlings, Toni Corelli 2016-4-29 1774 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, Ano Nuevo State Park 11 Comment
  CAS-BOT-BC161747  Bromus rubens John H. Thomas 1965-4-29 10626 San Mateo San Bruno Mountains in northern part of county. 396 Comment
  JROH4961  Bromus sterilis John Rawlings 2013-4-3 1159 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near power poles in partial shade on Rattlesnake Rocks trail off of Rd. D. 130 Comment
  RSA119336  Bromus vulgaris S. S. Tillett, I. Sternback 1956-6-24 534 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  CAS-BOT-BC233706  Buddleja davidii J. H. Thomas 1958-6-26 7288 San Mateo 3 miles north of Woodside along Canada Road 152 Comment
  CAS-BOT-BC233708  Buddleja davidii John H. Thomas 1960-6-25 8794 San Mateo Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street, Redwood City 7 Comment
  UC144260  Cakile edentula Copeland 1903-6-5 3319 San Mateo Montara Point; Pacific Coast, Montara Point Comment
  CAS-BOT-BC36953  Cakile maritima var. maritima Betty J. Hammerly 1942-6-15 439 San Mateo Ocean bluffs near mouth of Pescadero Creek. Comment
  CAS-BOT-BC36962  Cakile maritima var. maritima Daniel Cohen 1953-5-9 94 San Mateo Near mouth of Pescadero Creek. Comment
  CAS-BOT-BC185139  Calamagrostis nutkaensis John H. Thomas 1961-8-27 9708 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC185146  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5051 San Mateo San Pedro. Comment
  CAS-BOT-BC185148  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5040 San Mateo San Pedro. Comment
  CAS-BOT-BC185150  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5033 San Mateo San Pedro. Comment
  JROH3321  Calandrinia ciliata John H. Thomas 1967-5-10 12847 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1084413  Calandrinia ciliata G. Thomas Robbins 1937-4-11 105 San Mateo grassy meadow near Spring Valley Lakes (along road to Woodside) Comment
  CAS-BOT-BC389677  Calandrinia ciliata Maryann Danielson 1967-4-16 s.n. San Mateo San Francisco Watershed near water temple Comment
  CAS-BOT-BC389754  Calandrinia ciliata J. Nieri 1953-2-21 s.n. San Mateo Hetch Hetchy Reservoir, Redwood City Comment
  CAS-BOT-BC438539  Calandrinia ciliata John H. Thomas 1974-4-11 17128 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside. 152 Comment
  JROH4595  Calochortus albus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4607  Calochortus albus John H. Thomas 1977-4-21 18539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA292629  Calochortus albus Lyman Benson 1930-5-12 2120 San Mateo San Mateo County: Lake Searsville. 152 Comment
  UCR101611  Calochortus albus George K. Helmkamp, E. A. Helmkamp 1998-5-16 3748 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  UCR121570  Calochortus albus George K. Helmkamp, E. A. Helmkamp 1999-6-28 5000 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC492219  Calochortus albus Daniel Cohen 1953-6-3 105 San Mateo Los Trancos Woods. Comment
  JROH4619  Calochortus argillosus John H. Thomas 1962-5-31 9893 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4632  Calochortus luteus D. E. Breedlove 1971-5-31 19357 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH4641  Calochortus luteus John Hunter Thomas 1989-5-30 24753 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near dam Comment
  CAS-BOT-BC491978  Calochortus luteus Ned Cahill 1974-5-18 279 San Mateo Serpentine fields bordered by chaparral near the intersection of Canda and Edgewood roads, about 3 mi westward from Redwood City. Comment
  SEINET12044179  Calochortus luteus L. S. Rose 1933-1 33255 San Mateo Crystal Springs Lake Comment
  POM169470  Calochortus tolmiei C. F. Baker 1902-5-10 796 San Mateo Kings Mountain. Comment
  CAS-BOT-BC496829  Calochortus tolmiei J. H. Thomas 1949-5-7 505 San Mateo King's Mountain Road Comment
  HSC23996  Calochortus tolmiei Mary Katherine Wicksten 1971-6-22 86 San Mateo Huddart Park, by rd. to family campground Comment
  UC1134540 Image available Calochortus venustus N. Carlson 1935-6-20 74 San Mateo at Head (or ridge) of Oil and Slate Creek Santa Cruz Quad. 670 Comment
  RSA130388  Calochortus venustus Le Roy Abrams 1915-6-7 5242 San Mateo Woodside - Crystal Springs road near junction with Whipple Road. Comment
  CAS-BOT-BC270669  Calycadenia multiglandulosa L. S. Rose 1937-9-21 37658 San Mateo Emerald Lake, W of Redwood City 182 Comment
  CAS-BOT-BC270670  Calycadenia multiglandulosa L. S. Rose 1956-7-2 56120 San Mateo Emerald Lake, hills W of Redwood City 182 Comment
  JROH562  Calycadenia multiglandulosa John H. Thomas 1967-11-5 14128 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5781153 Image available Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo W of Redwood City, Emerald Lake Comment
  RSA124773  Calycadenia multiglandulosa subsp. robusta John H. Thomas 1958-11-22 7506 San Mateo Jasper Ridge, about 5 miles SW of Palo Alto 152 Comment
  CAS-BOT-BC436449  Calystegia subacaulis Ned Cahill 1974-4-29 194 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1846  Calystegia subacaulis subsp. subacaulis John H. Thomas 1968-4-19 14300 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR143018  Camissonia cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1933-7-27 5388 San Mateo Pacific Coast, two miles south of Pigeon Point 30 Comment
  RSA116751  Camissonia ovata James I. McMurphy 1902-3-22 s.n. San Mateo Near Portola Comment
  CAS-BOT-BC160327  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Robt. T. Orr 1961-6-27 s.n. San Mateo [Ano] Ano Nuevo Island Comment
  SEINET10905837  Campanula griffinii Thomas Thomas 22332 San Mateo Stanford University, about five miles sw of the downtown section of Palo Alto. Edge of chaparral Comment
  SEINET10463048  Campanula prenanthoides David D. Keck 1934-7-7 Keck 2929 San Mateo Kings Mountain, west of summit 610 Comment
  SEINET10463068  Campanula prenanthoides Wolf 1927-7-20 WOLF 646 San Mateo La Honda Grade Comment
  JROH1476  Capsella bursa-pastoris John Hunter Thomas 1983-4-5 21324 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  CHSC68130  Cardamine LeRoy E. Detling 1934-5-13 San Mateo Summit of La Honda Grade. Comment
  CAS-BOT-BC37658  Cardamine californica W. R. Dudley 1894-3-1 s.n. San Mateo Santa Cruz Peninsula. Near South San Francisco. Comment
  CAS-BOT-BC37663  Cardamine californica W. R. Dudley 1904-4-7 s.n. San Mateo Santa Cruz Mountain Peninsula. By Los Francos Creek 1.5 mile above Judge Allens. Comment
  JROH1485  Cardamine californica John Hunter Thomas 1983-4-5 21332 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC56974  Cardamine californica var. integrifolia Steven Triano 1988-5-24 184 San Mateo Redwood forest ca 0.1 mi w of Old La Honda Road near Martin Creek and 0.4 air miles e of SkyLonda. 381 Comment
  POM143341  Cardamine californica var. integrifolia A. D. E. Elmer 1903-04 4468 San Mateo Portola. Comment
  UC10443  Cardamine californica var. sinuata J. Burtt Davy 1895-4-20 1063 San Mateo Pilarcitos Creek Comment
  JROH1488  Cardamine oligosperma Le Roy Abrams 1902-4-5 2308 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1496  Cardamine oligosperma John Hunter Thomas 1981-4-5 20261 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  POM202951  Cardamine oligosperma Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  JROH5549  Carduus tenuiflorus John Rawlings, Ann Lambrecht 2011-6-21 1196 San Mateo Jasper Ridge Biological Preserve, Stanford University. Equestrian Trail from Webb Ranch to Escobar Rd. in switchback zone 105 Comment
  RSA22241  Carduus tenuiflorus J. T. Howell 1939-6-16 14741 San Mateo Skyline Blvd. near Crystal Springs Lake Comment
  JEPS48963  Carex amplifolia James G. Daly 1934-1 424 San Mateo upper Corte de Madera Canyon Comment
  CAS-BOT-BC19322  Carex barbarae John Thomas Howell 1938-5-1 13780 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC19328  Carex barbarae J. H. Thomas 1958-8-1 7371 San Mateo Sand dunes about 0.5 mile north of mouth of Pescadero Creek. 0 Comment
  JROH4318  Carex barbarae W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Indian Meadow just before Rattlesnake Rock. Comment
  JROH4315  Carex barbarae John H. Thomas 1974-7-6 17472 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4326  Carex bolanderi John Rawlings 2012-5-15 1121 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along bank of Bear Creek at its crossing of Road H near boundary fence. 82 Comment
  CAS-BOT-BC18926  Carex densa W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs. Comment
  CAS-BOT-BC18937  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4328 San Mateo Visatacion Valley. Comment
  UC212817  Carex densa Kellogg and Brannan 1870-6-1 San Mateo San Gregorio Creek Comment
  POM230443  Carex densa J. T. Howell, Alice Eastwood 1937-5-7 4328 San Mateo Visatacion Valley Comment
  POM289944  Carex densa Lyman Benson 1930-5-1 2056 San Mateo Stanford University 107 Comment
  POM193986  Carex exsiccata W. R. Dudley 1894-05 s.n. San Mateo San Mateo County: Woodside to Crystal Springs Reservoir Comment
  JROH4337  Carex globosa John Hunter Thomas 1981-4-5 20292 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  SEINET7560149 Image available Carex gracilior Charles Piper Smith 1905-4-26 874 San Mateo Portola Searsville Lake. 98 Comment
  JROH4347  Carex harfordii John Hunter Thomas 1986-4-24 23980 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along west side of Searsville Lake between boat ramp and "old beach." Comment
  CAS-BOT-BC119346  Carex obnupta W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Peach Pasture, Pescadearo, Santa Cruz Mountain. Comment
  CAS-BOT-BC119348  Carex obnupta V. F. Hesse 1953-8-22 1190 San Mateo Butano Ridge. 609 Comment
  UC1100481  Carex obnupta Malcolm A. Nobs and S. Galen Smith 1949-8-25 1575 San Mateo s Rockaway Beach Comment
  RSA796405  Carex obnupta Peter Rubtzoff, Roman Gankin 1975-5-21 7965 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  CAS-BOT-BC278759  Carex pendula John Rawlings 2011-7-3 s.n. San Mateo Along Purisima Creek, 200 m E of junction of Purisima Creek Trail and path to Judson Redwood Grove, about 0.5 air miles E of Higgins Canyon Road, Purisima Creek Redwoods Open Space Preserve, W slope of Santa Cruz Mountains; San Francisco Bay (SnFrB) 165 Comment
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Jan 26 2018
  CHSC109977  Carex pendula John Rawlings 2011-7-3 San Mateo 200 m E of junction of Purisima Creek Trail and path to Judson Redwood Grove, about 0.5 air miles E of Higgins Canyon Road, Purisima Creek Redwoods Open Space Preserve, W slope of Santa Cruz Mountains, San Francisco Bay (SnFrB). 165 Comment
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Jan 26 2018
  CAS-BOT-BC118332  Carex praegracilis W. R. Dudley 1906-6-12 s.n. San Mateo In meadow on Mt. side W of Trippstore, Woodside. Comment
  SJSU16013  Carex serratodens John Rawlings, Ken Hickman 2016-5-26 1813 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH4361  Carex subbracteata W. Lennihan 1989-5-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Mapache Trail. Comment
  POM79200  Carex subbracteata A. D. E. Elmer 1903-06 4429 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC176406  Carex subbracteata Peter Rubtzoff 1978-5-18 9172 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, westernmost part of the area. Comment
  RSA364769  Carex subbracteata L. S. Rose 1939-4-14 39063 San Mateo South San Francisco. 15 Comment
  SEINET7577065 Image available Carex subbracteata John Thomas Howell 1938-5-1 13778 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC116823  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5248 San Mateo Lobitas Comment
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Oct 30 2021
  CAS-BOT-BC116834  Carex subbracteata var. subbracteata Elmer Ivan Applegate 1895-3-3 778 San Mateo Unspecified Comment
  RSA15335  Carpobrotus chilensis C. B. Wolf 1927-1-29 146 San Mateo Pescadero Comment
  UCSC007729  Carpobrotus chilensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CHSC20700  Carpobrotus edulis Robert A. Schlising 1963-2-23 2433 San Mateo 21 miles north of Davenport along Highway 1. Comment
  POM15460  Castilleja affinis C. F. Baker 1902-5-1 777 San Mateo Crystal Springs Lake. Comment
  RSA425889  Castilleja affinis Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC249193  Castilleja affinis Barrett Anderson; Peter Rubtzoff 1988-4-26 3678 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Parkway 365 Comment
  RSA120823  Castilleja affinis S. S. Tillett, I. Sternback 1956-6-25 550 San Mateo Along Patterson Creek, on Middleton property just above entrance to Portola State beach. 366 Comment
  RSA296378  Castilleja affinis R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4552 San Mateo Along road to Portola State Park, only 0.25 mile below its junction with the Alpine Road. Comment
  SD131922  Castilleja affinis Rimo Bacigalupi, G. T. Robbins 1954-6-18 4549 San Mateo Along Skyline Blvd., 1I(c) miles north of the crossing of Page Mill (Alpine) road Comment
  SEINET12288583  Castilleja affinis Unknown 1932-1 8976 San Mateo Gov. Rolph Estate Comment
  SJSU667  Castilleja affinis A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge Comment
  JEPS6916  Castilleja affinis subsp. affinis Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4741 San Mateo about 0.75 mi w Skyline Boulevard (upper part of Tunitas Canyon road, w slopes of Kings Mountain); Kings Mountain 579 Comment
  JEPS6925  Castilleja affinis subsp. affinis Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4552 San Mateo 0.25 mi below Portola State Park road junction with the Alpine Road (along road to Portola State Park) Comment
  JEPS88798  Castilleja affinis subsp. affinis T. I. and F. M. Chuang 1991-6-29 7851 San Mateo ca .33 mi s Pescadero State Beach Comment
  JEPS103890  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1991-7-3 7861 San Mateo 1 mile S of Linda Mar, on highway 1 Comment
  JEPS60426  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1969-6-22 6666 San Mateo 1.5 mi from Verde Road junction with Lobitos Creek Road Comment
  UC886508  Castilleja ambigua subsp. ambigua Alice Eastwood 1912-6-2 208 San Mateo Granada Comment
  JROH3959  Castilleja attenuata John H. Thomas 1974-4-19 17159 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  JROH3966  Castilleja attenuata John Hunter Thomas 1982-4-23 20838 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area Comment
  JROH3973  Castilleja densiflora subsp. densiflora Robert Robertson 1954-4-23 93 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH3981  Castilleja densiflora subsp. densiflora John Hunter Thomas 1981-4-23 20472 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3982  Castilleja densiflora subsp. densiflora John Hunter Thomas 1981-5-14 20585 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Lab Comment
  UC27286  Castilleja densiflora subsp. densiflora Ivar Tidestrom May 1894 San Mateo Comment
  UC103182  Castilleja exserta subsp. latifolia Katharine Brandegee Jun 1905 San Mateo Half Moon Bay Comment
  SEINET12288672  Castilleja foliolosa Unknown 1932-1 8973 San Mateo Gov. Rolph Estate Comment
  NY68073  Castilleja franciscana F. W. Pennell 1940-5-15 25420 San Mateo E of upper Crystal Springs Lake, SW of San Mateo. 61.0 Comment
  NY68074  Castilleja franciscana F. W. Pennell 1940-5-15 25420 San Mateo E of upper Crystal Springs Lake, SW of San Mateo. 61.0 Comment
  POM283643  Castilleja latifolia Lyman D. Benson 1930-6-14 2158 San Mateo San Gregorio. 30 Comment
  SD4825  Castilleja latifolia Ulysses S. Grant IV June 1925 San Mateo near La Honda Comment
  POM21237  Castilleja latifolia Katherine Brandegee 1917-7-22 s.n. San Mateo Mussel Rock Station, Ocean Shore RR Comment
  SEINET12288716  Castilleja latifolia Unknown 1932-1 8989 San Mateo between Sky Line Drive & Half Moon Bay Comment
  JROH3993  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1958-5-10 7147 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of ridge Comment
  JROH3994  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1961-4-8 9072 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4003  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1981-4-23 20477 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU661  Castilleja rubicundula subsp. lithospermoides A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville L Comment
  UC311191  Castilleja subinclusa subsp. franciscana A. D. E. Elmer May 1903 4527 San Mateo San Bruno Hills Comment
  SJSU11465  Castilleja subinclusa subsp. franciscana A. J. Hutchko 1962-5-20 San Mateo foot of Grove St, Half Moon Bay Comment
  JEPS18915  Castilleja wightii Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5451 San Mateo just Crystal Springs Lake (s lake) (along Skyline Blvd (Calif Hwy 5), at a point 6.2 mi n of the junction with Kings Mtn (not the La Honda) road) 396 Comment
  JEPS19717  Castilleja wightii Peter H. Raven 1957-6-24 10966 San Mateo just s Linda Mar Comment
  JEPS29420  Castilleja wightii L. R. Heckard 1961-7-16 1268 San Mateo near San Bruno Mt. summit; San Bruno Mt. 304 Comment
  JEPS47395  Castilleja wightii L. R. Heckard 1964-6-24 1397 San Mateo San Bruno Mt.; near television transmitting towers 304 Comment
  JEPS47423  Castilleja wightii L. R. Heckard 1964-7-15 1421 San Mateo 0.5 miles east of state highway 1, along Lobitos Creek cut-off to Tunitas Canyon Road. Comment
  JEPS85726  Castilleja wightii L. R. Heckard 1964-6-24 1393 San Mateo San Bruno Mt.; slope below (n of) transmitting stations 304 Comment
  RSA505384  Castilleja wightii R. C. Bacigalupi, G. Thomas Robbins 1955-8-4 5446 San Mateo Along Calif. Highway No. 1, at western end of Montara Mountain, 1.1 mi. north of northern limits of town of Montara. Comment
  UC198269  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore Railway Comment
  UCR71440  Castilleja wightii L. R. Heckard, Rimo Bacigalupi 1963-7-2 1332 San Mateo Along old county road over San Pedro and Montara Mtns; N flank of San Pedro Mt. 244 Comment
  JEPS79097  Castilleja wightii L. R. Heckard 1980-5-3 5191 San Mateo s of Guadalupi Parkway, San Bruno Mt. (on slopes about Fern Rock, n part of San Bruno Mt., in upper end of drainage of Guadalupi Valley); San Bruno Mt., Guadalupi Valley, Fern Rock 182 Comment
  JEPS86182  Castilleja wightii L. R. Heckard 1988-5-18 6676 San Mateo ca 0.5 mi s Skyline Blvd. junction with Route 92 to Half Moon Bay Comment
  SEINET10582749  Castilleja wightii Lawrence R. Heckard 1963-7-18 Heckard 3142 San Mateo Along La Honda road from SkyLonda to LaHonda, 2 miles below (SW) junction with Skyline Blvd. 366 Comment
  SEINET884614 Image available Castilleja wightii A. D. E. Elmer 1903-1 4761 San Mateo San Pedro. Comment
  CAS-BOT-BC40392  Caulanthus lasiophyllus W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake. Comment
  CDA24867  Caulanthus lasiophyllus D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JEPS127814  Caulanthus lasiophyllus Adam C. Schneider with C. Matt Guilliams 2013-4-7 78 San Mateo Comment
  JROH1529  Caulanthus lasiophyllus John Hunter Thomas 1981-4-27 20509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC39386  Caulanthus lasiophyllus Roxania Strichfield 1910-4-30 490 San Mateo Santa Cruz Mountain Peninsula. Hills near Felt Lake. Comment
  CAS-BOT-BC40398  Caulanthus lasiophyllus Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Adjacent to Guadalupe Road. Comment
  UCD114587  Caulanthus lasiophyllus Ronald E. Dengler 1960-4-3 3 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  POM136267  Ceanothus X regius C. F. Baker 1902-5-10 804 San Mateo Kings Mountain. Comment
  LA41998  Ceanothus cuneatus Lewis S. Rose; 1932-2-27 3246 San Mateo Belmont Comment
  SJSU280  Ceanothus cuneatus H. W. Marion 1936-3-8 49 San Mateo 0.5 mi E of Searsville L 175 Comment
  JROH3522  Ceanothus cuneatus var. cuneatus Duncan M. Porter 1961-2-8 741 San Mateo Jasper Ridge Biological Preserve, Stanford University. N slope of ridge below picnic area near crest at N end of ridge Comment
  UC311168  Ceanothus cuneatus var. cuneatus A. D. E. Elmer March, 1903 4578 San Mateo Portola Comment
  CAS-BOT-BC51593  Ceanothus oliganthus var. sorediatus A. D. E. Elmer 1903-5-1 4479 San Mateo Portola Comment
  POM282997  Ceanothus oliganthus var. sorediatus Lyman Benson 1937-7-25 8467 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  UC1071321  Ceanothus oliganthus var. sorediatus G. E. Sindel 1935-8-29 345 San Mateo 2 1/2 mi nw Black Mt.; Santa Clara Quad. Comment
  UC1206472  Ceanothus oliganthus var. sorediatus Le Roy Abrams 1902-4-5 2307 San Mateo Searsville Comment
  UC311387  Ceanothus oliganthus var. sorediatus A. D. E. Elmer May 1903 4479 San Mateo Portola Comment
  POM301652  Ceanothus oliganthus var. sorediatus Carl B. Wolf 1941-7-31 11113 San Mateo Santa Cruz Mts, 1 miles E of summit of La Honda Grade. 396 Comment
  SEINET12209941  Ceanothus papillosus J. D. McMurphy 1906-1 13 San Mateo King's Mt., Santa Cruz Mts 457 Comment
  CAS-BOT-BC52277  Ceanothus thyrsiflorus Javier Penalosa 1963-3-9 2680 San Mateo Slopes southeast of 1314 ft. summit 381 Comment
  CAS-BOT-BC52282  Ceanothus thyrsiflorus Elizabeth McClintock 1972-5-10 s.n. San Mateo East of Kamchatka Point Comment
  CAS-BOT-BC52288  Ceanothus thyrsiflorus W. R. Dudley 1899-5-14 s.n. San Mateo Ravine on road from San Andreas to Palacios Comment
  CAS-BOT-BC52296  Ceanothus thyrsiflorus Sue Roberts 1954-5-1 58 San Mateo La Honda, 7 miles east of La Honda Comment
  CAS-BOT-BC52300  Ceanothus thyrsiflorus W. R. Dudley 1900-4-15 s.n. San Mateo Above Crystal Springs and Half Moon Bay road Comment
  POM136468  Ceanothus thyrsiflorus C. F. Baker 1902-4-12 511 San Mateo La Honda. Comment
  UC75398  Ceanothus thyrsiflorus C. F. Baker 1902-4-12 511 San Mateo La Honda Comment
  UCR104956  Ceanothus thyrsiflorus Tom Paradise 1993-5-3 12 San Mateo Woodside. Purisima Creek Redwoods Open Space Preserve. Skyline Boulevard at Tunitas Creek Road 631 Comment
  UCSC011285  Ceanothus thyrsiflorus Unknown 1972-5-31 s.n. San Mateo Waddell Creek area Comment
  RSA220002  Centaurea calcitrapa R. E. Frenkel 1963-12-7 319 San Mateo San Francisco Water District, Whiting Ridge Road, about 0.4 mile north of the junction with Spring Valley Ridge Road Comment
  RSA289669  Centaurea calcitrapa Lyman Benson 1930-4-15 2037 San Mateo Spring Valley; Crystal Springs Lake 152 Comment
  SJSU1124  Centaurea calcitrapa C. W. Sharsmith 1951-10-7 5863 San Mateo Alpine Road 3 mi NW of Palo Alto Comment
  UC149594  Centromadia pungens subsp. pungens L. R. Abrams 1903-9-26 4017 San Mateo Menlo Park Comment
  CAS-BOT-BC279323  Centromadia pungens subsp. pungens L. S. Rose 1941-10-10 41463 San Mateo Along the Bayshore Boulevard, San Mateo 3 Comment
  CAS-BOT-BC388387  Cerastium glomeratum A. D. E. Elmer 1903-4-1 4473 San Mateo San Bruno Hills Comment
  CAS-BOT-BC388390  Cerastium glomeratum Fred Hemphill 1973-4-15 670 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1688  Cerastium glomeratum John H. Thomas 1957-4-16 6649 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1696  Cerastium glomeratum John Hunter Thomas 1983-4-5 21328 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  POM151596  Cerastium glomeratum A. D. E. Elmer 1903-04 4473 San Mateo San Bruno Hills Comment
  CAS-BOT-BC388395  Cerastium glomeratum Walter Knight; Irja Knight 1965-3-21 948 San Mateo San Bruno Mountain. North Power Line Ridge Comment
  JROH3627  Cercocarpus betuloides var. betuloides John Hunter Thomas 1981-7-24 20730 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC007731  Chenopodium californicum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UCSB61628  Chenopodium murale True, Jr., Gordon 1937-10-16 San Mateo Near Thornton Beach 3 Comment
  JROH1827  Chenopodium vulvaria Ann Lambrecht 2005-8-1 17 San Mateo Jasper Ridge Biological Preserve, Stanford University; Bear Creek crossing, east bank, about 2m from stream's edge Comment
  CAS-BOT-BC497731  Chlorogalum pomeridianum George Oberlander 1950-6-3 1039 San Mateo South San Andreas Lake Comment
  JROH4653  Chlorogalum pomeridianum var. pomeridianum John Hunter Thomas 1983-7-20 22903 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC246318  Chloropyron maritimum subsp. palustre L. R. Abrams 1914-7-16 5124 San Mateo Cooley's Landing on San Francisco Bay Comment
  UCR122972  Chrysanthemum coronarium George K. Helmkamp, E. A. Helmkamp 2001-6-2 6761 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  RSA54048  Chrysanthemum leucanthemum J. T. Howell 1949-7-4 25356 San Mateo Skyline Blvd., north of Millbrae Comment
  RSA51324  Chrysanthemum segetum Peter H. Raven 1950-4-30 1971 San Mateo along streets, Montara 24 Comment
  RSA118979  Chrysolepis chrysophylla Oliver W. Norvell 1931-2-22 1320 San Mateo Kings Mt. Road. Comment
  RSA3093  Chrysolepis chrysophylla Carl B. Wolf 1931-8-21 2335 San Mateo 1/2 way up the east side of Kings Mt. 366 Comment
  JROH2580  Cicendia quadrangularis Rimo Bacigalupi 1922-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187410  Cicendia quadrangularis John H. Thomas 1966-4-2 11545 San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Along road at the Searsville end. Comment
  CAS-BOT-BC277887  Cirsium brevistylum David D. Keck 1934-7-7 2932 San Mateo Kings Mountain, west of summit 579 Comment
  CAS-BOT-BC277890  Cirsium brevistylum A. D. E. Elmer 1903-6-1 4277 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC277895  Cirsium brevistylum A. D. E. Elmer 1903-6-1 4277 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC100944  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-6-1 4292 San Mateo Crystal Springs Lake Comment
  UC1416532  Cirsium fontinale var. fontinale George E. Pilz 1972-5-22 789 San Mateo e side of Crystal Springs Reservoir, Interstate 280 cuts through colony Crystal Springs Reservoir 121 Comment
  UCD130569  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo east shore of Upper Crystal Springs Lake, 0.7 mile south of road across lake. Comment
  JROH633  Cirsium occidentale var. venustum John H. Thomas 1973-6-10 16813 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306686  Cirsium occidentale var. venustum A. D. E. Elmer 1903-6-1 4259 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280133  Cirsium occidentale var. venustum George Oberlander 1949-6-25 251 San Mateo San Francisco Watershed Reserve. East of Sawyer Ridge Comment
  UCD130668  Cirsium occidentale var. venustum W. A. Harvey; J. M. Tucker 1948-6-29 1708 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC280503  Cirsium quercetorum Alice Eastwood 1912-6-3 204 San Mateo Granada Comment
  CAS-BOT-BC280510  Cirsium quercetorum Alice Eastwood 1912-6-10 342 San Mateo Crystal Springs Comment
  CDA1535  Cirsium quercetorum T. C. Fuller 1971-6-1 19882 San Mateo Crystal Springs Reservoir E shore, 0.3 mi. SE of center causeway; Belmont. Comment
  CAS-BOT-BC280515  Cirsium quercetorum Alice Eastwood 1922-5-28 11327 San Mateo Granada Comment
  CAS-BOT-BC280527  Cirsium quercetorum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Top of Quarry 4 Comment
  SEINET11832881  Cirsium quercetorum Unknown 1932-1 9149 San Mateo near Spring Lakes Comment
  UC962069  Cirsium quercetorum E. E. Gilbert 1952-5-23 San Mateo e margin of Crystal Springs Lake Crystal Springs Lake Comment
  JROH634  Cirsium vulgare John H. Thomas 1964-11-15 10526 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road at edge of Searsville Lake Comment
  JROH640  Cirsium vulgare John Hunter Thomas 1977-6-16 18799 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285867  Cirsium vulgare J. P. Rose 1907-9-28 s.n. San Mateo Near Cooley's Landing Comment
  SEINET11834687  Cirsium vulgare E. H. Graham 1931-1 6927 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  JROH3005  Clarkia purpurea subsp. quadrivulnera John Hunter Thomas 1981-5-5 20537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC163972  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1894-5-30 s.n. San Mateo Near Redwood City Comment
  JROH3008  Clarkia purpurea subsp. viminea Duncan M. Porter 1960-5-26 702 San Mateo Jasper Ridge Biological Preserve, Stanford University; N part of ridge, above Searsville Lake Comment
  CAS-BOT-BC165154  Clarkia rubicunda Lewis S. Rose 1936-5-28 36301 San Mateo Emerald Lake, W. of Redwood City 91 Comment
  CAS-BOT-BC165165  Clarkia rubicunda Peter H. Raven 1957-6-24 10972 San Mateo North of the light house, Pigeon Point Comment
  JROH3011  Clarkia rubicunda Richard L. Garber unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3023  Clarkia rubicunda John Hunter Thomas 1977-6-7 18730 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3024  Clarkia rubicunda John Hunter Thomas 1978-7-2 19244 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG5002  Clarkia rubicunda H. and M. Dearing 1951-8-17 6945 San Mateo Pigeon Point, N of Santa Cruz Comment
  UC1279936  Clarkia rubicunda Peter H. Raven 1957-7-4 11045 San Mateo 1.7 mi n of junction to Portola State Park (along State Highway 5 (Skyline Boulevard)) Comment
  UC422840  Clarkia rubicunda W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  UC615203  Clarkia rubicunda Beryl O. Schreiber 1932-5-29 310 San Mateo Spring Valley Water Company Road Comment
  CAS-BOT-BC165131  Clarkia rubicunda Carl B. Wolf 1927-6-29 566 San Mateo On the coast 3 mi. so. of San Gregorio Comment
  CAS-BOT-BC165143  Clarkia rubicunda W. Knight; I. Knight 1965-6-20 s.n. San Mateo Crystal Cave Canyon Comment
  CAS-BOT-BC165160  Clarkia rubicunda W. R. Dudley 1905-6-19 s.n. San Mateo By road above Evans near Iverson place Comment
  RSA18311  Clarkia rubicunda Carl B. Wolf 1927-7-14 600 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC439291  Claytonia exigua subsp. exigua D. K. Gillespie 1930-4-21 9222 a San Mateo Emerald Lake near Redwood City. Comment
  UCSC007733  Claytonia parviflora Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC439593  Claytonia parviflora subsp. parviflora H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH5734  Claytonia parviflora subsp. parviflora John Rawlings 2015-4-5 1654 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  RSA101038  Claytonia perfoliata subsp. mexicana G. Oberlander 1949-3-2 18 San Mateo Under oak madrone, Sawyer Ridge, San Frncisco Watershed Reserve. Comment
  CAS-BOT-BC443659  Claytonia perfoliata subsp. perfoliata Josephine D. Randall 1907-6-29 295 San Mateo Santa Cruz Peninsula. Kings Mt. Road. Comment
  JEPS121443  Claytonia perfoliata subsp. perfoliata Adam C. Schneider with C. Matt Guilliams 2013-2-2 2 San Mateo Crystal Springs Reservoir, 100 yards west from the intersection of Lexington Ave. and Allegheny Way, Highlands-Baywood Park, CA. Comment
  RSA244334  Claytonia sibirica C. W. Tilforth, John Dourley 1973-7-19 935 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  SEINET12099147  Clematis lasiantha Unknown 1932-1 9022 San Mateo Los Trancos Woods Comment
  UC1134576  Clintonia andrewsiana N. K. Carlson 1935-7-3 116 San Mateo 3 mi s of Bellvale 91 Comment
  RSA104877  Collinsia heterophylla Elizabeth Sprague 1956-5-28 s.n. San Mateo 2 miles east of Skyline Drive on La Honda Rd. Comment
  UCD123583  Collinsia heterophylla W. A. Harvey; J. M. Tucker 1948-6-29 1702 San Mateo beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  JEPS85167  Collinsia multicolor Roy E. Buck 1987-5-2 566 San Mateo on ne-facing slope along Crystal Springs Rd. ca 300 m n Woodridge Rd. jct. (1.5 air km nne of confluence of San Mateo and Polhemus Creeks); Hillsborough, Canyon of San Mateo Creek 33 Comment
  UC1736312  Collinsia multicolor Dean W. Taylor 1994-5-10 14276 San Mateo San Mateo Creek drainage; along Crystal Springs Road 0.3 mi East of junction of Tartan Trail 67 Comment
  JROH4016  Collinsia sparsiflora var. collina Herbert Dengler 1963-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; lower edge of serp. by "up" road S.W. of Searsville Rocks Comment
  UC729639  Collomia heterophylla Carl B. Wolf 1929-5-25 3725 San Mateo 1/2 mi n La Honda Grade (on road to Woodside) 121 Comment
  JEPS71039  Collomia heterophylla P. B. Kennedy May, 1917 San Mateo Comment
  RSA176421  Conium maculatum John H. Thomas 1964-7-3 10442 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto , along road above Searsville Lake Comment
  SEINET4182807 Image available Conium maculatum Robert A. Norris 1974-7-20 2117 San Mateo San Francisco, Near stream in canyon, Glen Park Recreation Center, San Miguel Hills, San Francisco, S.F. Co., Calif. Comment
  CAS-BOT-BC285995  Conyza bonariensis John H. Thomas 1961-8-27 9692 San Mateo Colma. Near intersection of El Camino Real and F Street 45 Comment
  CAS-BOT-BC286204  Conyza canadensis Peter Rubtzoff; Patricia Fallon 1987-8-26 9845 San Mateo San Bruno Mountains. Main part of Saddle area Comment
  RSA120503  Corallorhiza maculata S. S. Tillett, I. Sternback 1956-6-24 533 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  JROH5743  Corallorhiza striata L. Nordby 1982-5-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. 2 km east of redwood stands Comment
  UCD138899  Corallorhiza striata K. L. Koch 1965-5-1 42 San Mateo on north side of Alpine Road, 1.4 miles from Portola Park turnoff. 426 Comment
  JROH4025  Cordylanthus pilosus subsp. pilosus John H. Thomas 1970-7-5 15660 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4028  Cordylanthus pilosus subsp. pilosus John H. Thomas 1972-8-18 16151 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM57992  Corethrogyne filaginifolia var. californica C. F. Baker 1902-5-10 810 San Mateo Crystal Springs Lake. Comment
  UC527529  Cornus glabrata C. B. Wolf 1931-8-20 San Mateo 3 mi. w. Mayfield (on rd. to La Honda) 91 Comment
  CAS-BOT-BC210353  Cornus sericea W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. San Mateo Creek Comment
  UC796713  Coronopus didymus Ira L. Wiggins 1949-7-2 12198 San Mateo Pescadero Beach Comment
  JROH4975  Cortaderia selloana John Hunter Thomas 1982-7-3 21060 San Mateo Jasper Ridge Biological Preserve, Stanford University. Lake edge Comment
  NY42441  Cortaderia selloana J. B. Walker 1994-8-15 910 San Mateo N edge of town 10 Comment
  CAS-BOT-BC180360  Corylus cornuta subsp. californica W. S. Atkinson 1901-7-3 s.n. San Mateo Pescadero. Santa Cruz Peninsula Comment
  CAS-BOT-BC180365  Corylus cornuta subsp. californica W. R. Dudley 1898-3-5 s.n. San Mateo King's Mt., Santa Cruz Peninsula Comment
  JROH1333  Corylus cornuta subsp. californica John H. Thomas 1974-5-3 17246 San Mateo Jasper Ridge Biological Preserve, Stanford University; in redwood area below dam Comment
  UCD110057  Corylus cornuta subsp. californica Franklin W. Martin; Madelain N. Martin 1960-3-26 47 San Mateo YMCA camp 10 miles east of Pescadero. 152 Comment
  UCR64445  Corylus cornuta var. californica David D. Keck 1932-2-12 1362 San Mateo La Honda road, east slope of Coast Range above Searsville Lake 305 Comment
  CAS-BOT-BC453503  Cotoneaster lacteus Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo Colma Canyon; San Bruno Mountains Comment
  JROH3646  Cotoneaster pannosus John Hunter Thomas 1983-7-20 22901 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC287301  Cotula australis John H. Thomas 1961-5-7 9261 San Mateo San Bruno Mt in N part of county 396 Comment
  UC1119278  Cotula coronopifolia H. S. Yates 1935-5-8 5223 San Mateo 1 mi n Bolsa Pt.; Santa Cruz Quad. Comment
  CAS-BOT-BC291474  Cotula coronopifolia Daniel Cohen 1953-5-9 76 San Mateo Top of sea cliff at Pescadero Comment
  RSA6409  Cotula coronopifolia D. D. Keck 1932-3-24 1403 San Mateo Redwood City, at border of San Francisco Bay. Comment
  RSA100981  Crassula aquatica G. Oberlander 1949-8-20 374 San Mateo San Andreas Lake, San Francisco Watershed Reserve. Comment
  JROH1887  Crassula connata John H. Thomas 1973-3-12 16482 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC427836  Crassula connata Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Near Guadalupe Road in Crocker Hills. Comment
  CAS-BOT-BC427838  Crassula connata Ned Cahill 1975-2-21 407 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  JEPS125947  Crataegus monogyna D. W. Taylor 2000-8-1 17538 San Mateo Montara Mountain: Scarper Peak, western slope of the pek near the summit. Comment
  JROH3655  Crataegus monogyna John Hunter Thomas 1984-4-24 23299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3658  Crataegus monogyna Carol Zabel 1989-4-19 10 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lake, south side. Half way between Trail 13 causeway bridge and old middle lake boat landing. Comment
  CAS-BOT-BC291511  Crepis capillaris James McMurphy 1909-10-31 s.n. San Mateo Hooper's Place, Woodside Comment
  CAS-BOT-BC290924  Crepis vesicaria John Thomas Howell 1956-5-1 31316 San Mateo Just s. of Woodside on road to Searsville Comment
  JROH672  Crepis vesicaria subsp. taraxacifolia John Hunter Thomas 1989-6-6 24765 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1952  Croton setiger John H. Thomas 1958-11-22 7508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5815  Croton setiger John Rawlings 2016-8-16 1941 San Mateo Jasper Ridge Biological Preserve, Stanford University; trail 9 west of serpentine 184 Comment
  CDA9446  Cryptantha torreyana D. G. Kelch 2002-5-13 s.n San Mateo Cahill Ridge. 0 Comment
  JROH6202  Cryptantha torreyana var. pumila John Rawlings 2014-5-6 1231 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  RSA704404  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 424 San Mateo CA., San Mateo County., Pescadero County Park, on Botano Ridge, ca. 5-5.5 miles East of Dearborn Park Road, 375 Comment
  CAS-BOT-BC80653  Cupressus goveniana Harry A. Dutton 1949-9-1 s.n. San Mateo On the north bank of the North Fork of Butano Creek (common corner of Sections 11 & 12 and 13 & 14, range 4 W) Comment
  CAS-BOT-BC80791  Cupressus macrocarpa John Thomas Howell 1957-5-8 32236 San Mateo Skyline Blvd. w. of San Bruno. Comment
  RSA130967  Cuscuta salina S. D. Halsey 1908-9-26 s.n. San Mateo near Cooley's Landing Comment
  CAS-BOT-BC287336  Cynara cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just S of Main St, Redwood City Comment
  CAS-BOT-BC287338  Cynara cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just S of Main St, Redwood City Comment
  UC1598121  Cynara cardunculus subsp. cardunculus John Thomas Howell 1956-11-14 31961 San Mateo just s Main Street (Bayshore Highway); Redwood City Comment
  JROH1389  Cynoglossum grande Le Roy Abrams 1902-4-6 2317 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  POM176865  Cynoglossum grande L. R. Abrams 1914-3-1 5060 San Mateo Woodside. Comment
  RSA130412  Cynoglossum grande Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  UC1206465  Cynoglossum grande Le Roy Abrams 1902-4-6 2317 San Mateo Searsville Comment
  SJSU15350  Cynoglossum grande R. S. Altmann 1976-4-21 76032 San Mateo Beside Alpine Road ca. 1 mile north intersection with Page Mill Rd. 335 Comment
  SD146097  Cynosurus echinatus G. K. Helmkamp, E. A. Helmkamp 1999-6-28 4958 San Mateo Santa Cruz Mountains; Sky Londa; Junction of CA-84 & CA-35; 5 miles south of central Redwood City 456 Comment
  JROH4386  Cyperus eragrostis John H. Thomas 1959-8-22 8084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC133772  Cypripedium fasciculatum Mrs. C. S. Jordan 1915-4-1 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC136518  Cypripedium montanum Wm. Cranston 1915-4-1 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  SEINET5546172  Cypselea humifusa H. S. Gentry 1931-1 72 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  RSA176822  Cytisus monspessulanus John H. Thomas 1961-5-5 9208 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  RSA128366  Cytisus scoparius Peter H. Raven 1950-6-3 2259 A San Mateo Near San Andreas Lake. Comment
  CAS-BOT-BC198211  Cytisus striatus Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo Base of Quarry, San Bruno Mountains Comment
  JROH5022  Dactylis glomerata John Hunter Thomas 1982-6-7 21031 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC445492  Damasonium californicum Alice Eastwood 1922-4-24 11200 San Mateo On road between Princeton and Morman Comment
  CAS-BOT-BC192231  Danthonia californica Ira L. Wiggins 1929-5-10 3673 San Mateo At Pigeon Point Comment
  CAS-BOT-BC192243  Danthonia californica A. D. E. Elmer 1903-6-1 4707 San Mateo Crystal Springs Lake Comment
  SJSU15903  Danthonia californica John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1728 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  UCD127385  Daucus carota Rimo Bacigalupi; G. Thomas Robbins 1955-8-4 5444 San Mateo along grade on Highway No. 1, just south of Pedro Valley. Comment
  JROH230  Daucus pusillus John Hunter Thomas 1989-5-11 24742 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD49785  Deinandra corymbosa J. H. Thomas 1959-8-16 8067 San Mateo About 2 miles north of Pigeon Point along the coast. 14 Comment
  UC174170  Deinandra corymbosa Katharine Brandegee 1885-1 San Mateo Moss Beach Comment
  UC89137  Deinandra corymbosa K. Brandegee 1889-5-1 San Mateo Milbrae Comment
  JEPS35779  Deinandra corymbosa V. F. Hesse 1964-5-26 3201 San Mateo near coast Whitehouse Creek Road 45 Comment
  CAS-BOT-BC299188  Deinandra corymbosa subsp. corymbosa A. D. E. Elmer 1903-7-1 4963 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC299211  Deinandra corymbosa subsp. corymbosa Lewis S. Rose 1931-8-28 s.n. San Mateo Moss Beach Comment
  CAS-BOT-BC299199  Deinandra corymbosa subsp. corymbosa L. R. Abrams 1902-9-21 3000 San Mateo Bill Road, Crystal Lake Comment
  CAS-BOT-BC292113  Delairea odorata James McMurphy 1905-10-19 s.n. San Mateo Above Portola Comment
  CAS-BOT-BC9221  Delphinium californicum George Thomas Oberlander 1949-6-25 241 San Mateo Pilarcitos Canyon Comment
  OBI10661  Delphinium californicum Lewis S. Rose 1965-5-3 65058 San Mateo San Bruno Mtn, Colma Cyn 61 Comment
  JROH3427  Delphinium californicum subsp. californicum John H. Thomas 1967-5-31 12926 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3436  Delphinium californicum subsp. californicum John Hunter Thomas 1980-6-5 19999 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9249  Delphinium decorum Elizabeth McClintock; Phillip C. Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain, east side of mountain, above Harold Ave., Brisbane. Above Philip Wheeler's house Comment
  CAS-BOT-BC10291  Delphinium hesperium P. H. Raven 1949-6-13 834 San Mateo near Belmont 121 Comment
  CAS-BOT-BC9868  Delphinium nudicaule W. R. Dudley 1893-5-28 S. N. San Mateo Santa Cruz Peninsula, beyond Kings Mountain Comment
  SEINET12099568  Delphinium nudicaule N. R. Dudley 1893-1 s.n. San Mateo Santa Cruz Peninsula, Beyond King's Mountain Comment
  CAS-BOT-BC116328  Delphinium parryi subsp. parryi W. R. Dudley 1894-7-7 S. N. San Mateo Under trees, head of Corte Madera. Comment
  UC9239  Delphinium variegatum J. Burtt Davy 1895-4-20 1067 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC7899  Delphinium variegatum Harry A. Dutton 1900-3-11 s.n. San Mateo not specified Comment
  SEINET12086776  Delphinium variegatum L. S. Rose 1932-1 32138 San Mateo Redwood City Comment
  UC203054  Delphinium variegatum subsp. variegatum A. D. E. Elmer May 1903 4796 San Mateo Crystal Springs Lake Comment
  SJSU15936  Deschampsia cespitosa subsp. cespitosa John Rawlings, Ken Hickman 2016-5-26 1807 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CDA28787  Deschampsia elongata D. G. Kelch 2009-6-9 9 .394 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
  UCSB294  Deschampsia elongata Kraebel, C. 1932-7-24 San Mateo no data Comment
  POM207175  Deschampsia holciformis E. B. Copeland 1903-6-10 3305 San Mateo Montara Point. Comment
  CAS-BOT-BC902  Dicentra chrysantha L. R. Abrams 1921-5-25 8007 San Mateo Halfway to summit of Mt. Diablo Comment
  CAS-BOT-BC704  Dicentra formosa subsp. formosa Peter Rubtzoff 1953-5-14 1340 San Mateo Pilarcitos Creek canyon, 1 to 2 miles downstream from Pilarcitos Lake. Comment
  CAS-BOT-BC707  Dicentra formosa subsp. formosa Charles Fuller Baker 1902-3-22 344 San Mateo Crystal Springs Lake Comment
  SD39077  Dichelostemma capitatum subsp. capitatum Marie Cummings 1933-4-11 8 San Mateo Spring Valley Lake. Comment
  JROH4654  Dichelostemma capitatum subsp. capitatum Elmer I. Applegate 1895-5-11 703 b San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Dam Comment
  CAS-BOT-BC502169  Dichelostemma congestum Fred Hemphill 1973-4-22 666 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  JROH5081  Digitaria sanguinalis John Hunter Thomas 1991-11-21 25103 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing of San Francisquito Creek. Comment
  JROH5082  Digitaria sanguinalis Ann Lambrecht 2004-7-21 13 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek near intersection with Trail 12. Comment
  JROH5720  Digitaria sanguinalis John Rawlings 2015-9-22 1643 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  CAS-BOT-BC150446  Diplacus aurantiacus Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Base of Quarry 2 Comment
  CAS-BOT-BC150448  Diplacus aurantiacus L. R. Abrams 1915-11-1 5480 San Mateo Searsville Ridge Comment
  CAS-BOT-BC150450  Diplacus aurantiacus Elmer I. Applegate 1895-3-9 410 San Mateo Woodside road, near Stanford University Comment
  SEINET8415145  Diplacus aurantiacus LeRoy E. Detling 1932-8-17 1354 San Mateo San Gregorio. Comment
  RSA438392  Dipsacus fullonum E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel Comment
  CAS-BOT-BC121860  Dirca occidentalis Walter Knight; Irja Knight; James B. Roof; Gregory Whipple; Ihsan A. Al-Shehbaz 1969-9-22 2792 San Mateo 0.9 miles from Pilarcitos Dam en route to Montara Mountain. On San Francisco Water Dept. Property. 274 Comment
  CAS-BOT-BC121865  Dirca occidentalis Quinn P. Sinnott; Kathy A. Sinnott 1975-3-1 611 San Mateo Along road about 1 miles N of Stone Dam. San Francisco Watershed at Crystal Springs. 243 Comment
  JROH4204  Dirca occidentalis John H. Thomas 1970-1-1 15496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG32296  Dirca occidentalis L. S. Rose 1964-3-9 64004 San Mateo N end of Crystal Springs Lake 121 Comment
  SJSU4530  Dirca occidentalis L. S. Rose 1964-3-9 64004 San Mateo N end Crystal Springs L 121 Comment
  SEINET6957401  Dirca occidentalis Lorin I. Nevling 1996-2-16 346 San Mateo San Pedro Valley Park, Brooks Creek Trail in view of Brooks Falls. "Western Leatherwood." Comment
  POM277214  Disporum hookeri var. hookeri Lyman Benson 1931-2-28 2614 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  CAS-BOT-BC195719  Distichlis spicata Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Black Point, San Bruno Comment
  SEINET11973366  Dodecatheon clevelandii Unknown 1930-1 7436 San Mateo Jasper Ridge Comment
  UC105762  Dodecatheon clevelandii subsp. patulum Brandegee Apr 1889 San Mateo San Mateo Comment
  UC673409  Dodecatheon clevelandii subsp. patulum Elmer I. Applegate 1895-3-9 324 San Mateo near Woodside; near Woodside Comment
  JROH3382  Dodecatheon hendersonii John H. Thomas 1958-2-15 6987 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS48589  Dodecatheon hendersonii James G. Daly 1934-1-1 208 San Mateo San Gregorio Watershed Santa Cruz Mts., San Gregorio Watershed (branch of La Honda Canyon, sw San Mateo County) Comment
  JEPS9541  Dodecatheon hendersonii Ivar Tidestrom 1894-3-22 San Mateo Comment
  SEINET5548367  Dodecatheon hendersonii H. S. Gentry 1931-1 10 San Mateo 1.5 miles W of San Mateo, Half-Moon Bay road. Comment
  CAS-BOT-BC435208  Drosanthemum floribundum Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  CAS-BOT-BC389714  Drymocallis glandulosa Sharon Rogers 1966-4-23 s.n. San Mateo Area in Crystal Springs watershed, between North and South Gates of Filoli Estate Comment
  CAS-BOT-BC159543  Drymocallis glandulosa var. glandulosa Javier Penalosa 1963-2-23 2634 San Mateo San Bruno Mtn., ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC159531  Drymocallis glandulosa var. glandulosa J. Clausen 1941-7-1 1871 San Mateo Base of Montara Mountain, N. of Montara. 121 Comment
  JROH3741  Drymocallis glandulosa var. wrangelliana John Rawlings, Toni Corelli 2013-5-7 1173 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the path to old quarry off of Trail 12. 109 Comment
  JROH34  Dryopteris arguta John Hunter Thomas 1977-6-16 18743 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam. Comment
  CAS-BOT-BC389731  Dryopteris arguta J. Lovelle 1973-7-22 s.n. San Mateo Mt. Ellen Comment
  CAS-BOT-BC67890  Dryopteris arguta W. R. Dudley 1905-6-19 s.n. San Mateo Santa Cruz Peninsula, Santa Cruz Mountains - by road near top of New Grade road to Black Mt. Comment
  UCR240611  Dudleya T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3525 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  CAS-BOT-BC428364  Dudleya farinosa L. R. Abrams 1909-8-2 4272 San Mateo Santa Cruz Peninsula. Pebble Beach hotel, Pescadero Comment
  CAS-BOT-BC197079  Echinochloa crus-galli Ira L. Wiggins 1985-9-28 22301 San Mateo N side of San Francisquito Creek, ca 125 m upstream from Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC208921  Echinochloa crus-galli Ira L. Wiggins 1980-8-29 22266 San Mateo Bed of San Francisquito Creek, ca 240 m upstream from Pope Street Bridge, Manlo [Menlo] Park Comment
  JROH5093  Echinochloa crus-galli John Hunter Thomas 1982-7-2 21059 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  UCR122579  Echium pininana George K. Helmkamp, E. A. Helmkamp 2001-6-2 6785 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  JROH4407  Eleocharis macrostachya John Hunter Thomas 1982-8-13 21138 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4410  Eleocharis macrostachya Carol Zabel 2006-4-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. West side of "road" leading into Bike bowl, Comment
  SEINET3910868  Eleocharis montevidensis Lewis S. Rose 1950-5-20 50146 San Mateo Emerald Lake region hills w. of Redwood City.; 0 244 Comment
  POM144786  Eleocharis palustris A. D. E. Elmer 1903-07 4767 San Mateo San Pedro. Comment
  RSA176541  Elymus X gouldii John H. Thomas 1963-6-23 10159 San Mateo Along Alpine Road near Ladera Comment
  UC50673  Elymus californicus Kellogg and Brennon San Mateo San Gregorio's Redwoods Comment
  UCD62412  Elymus glaucus subsp. virescens P. B. Kennedy 1916-4-1 San Mateo Colma Canyon, Daly City, S. San Francisco. Comment
  CAS-BOT-BC235209  Elymus multisetus David D. Keck 1932-5-6 1469 San Mateo Belmont Comment
  JROH5127  Elymus multisetus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI12062  Epilobium brachycarpum Lewis S. Rose 1966-8-6 66077 San Mateo San Bruno Mtn, head of Colma Cyn 213 Comment
  UC124424  Epilobium canum subsp. canum C. F. Baker 1902-10-20 52 San Mateo summit of Coast Range Comment
  JROH3049  Epilobium ciliatum subsp. ciliatum John H. Thomas 1970-7-5 15659 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38385  Epilobium ciliatum subsp. watsonii Edith A. Purer 1933-7-27 5340 San Mateo High stabilized sand dunes, Pigeon Point. Comment
  UC1537611  Epilobium ciliatum subsp. watsonii Gordon H. True Jr. 1936-6-7 481 San Mateo 2 mi s Pescadero (gully along coast highway) 15 Comment
  JROH3068  Epilobium densiflorum John Hunter Thomas 1981-7-12 20703 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  JROH3072  Epilobium minutum Herbert Dengler 1964-5-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; to be found ca. 100 yds. w. of tiger lily site on serp. slope Comment
  CDA39514  Epipactis helleborine T. C. Fuller 1970-5-12 19528 San Mateo Emily Brown property, 3045 Ralston Avenue, Burlingame. 0 Comment
  CAS-BOT-BC57086  Equisetum X ferrissii E. Cannon 1898-5-24 s.n. San Mateo Colma Comment
  POM281831  Equisetum arvense Lyman Benson 1930-6-14 2157 San Mateo La Honda, Santa Cruz Mtn range. Redwoods. 244 Comment
  UCD164092  Equisetum arvense Peter Rubtzoff 1978-4-2 9153 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JEPS79607  Equisetum hyemale subsp. affine Edward Lee 1978-8-19 San Mateo between Lake Pilarcitos and San Andreas Comment
  CAS-BOT-BC57616  Equisetum telmateia J. H. Thomas 1949-3-29 199 San Mateo King's Mt. Road Comment
  CAS-BOT-BC57600  Equisetum telmateia Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Radio Road Comment
  JROH5146  Eragrostis pectinacea var. pectinacea John Rawlings 2011-8-2 1079 San Mateo Jasper Ridge Biological Preserve, Stanford University. In the dry creek bed of San Francisquito Creek near the Dennis Martin site. 71 Comment
  CAS-BOT-BC299890  Erechtites glomeratus John H. Thomas 1967-5-2 12805 San Mateo About 1/4 mile up Market Street from new school in canyon, San Bruno Mountain Comment
  JROH646  Erigeron bonariensis John H. Thomas 1976-10-16 18411 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH654  Erigeron canadensis John Hunter Thomas 1991-11-21 25105 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  JEPS83065  Erigeron foliosus var. franciscensis Roy E. Buck, Randall A. Morgan, and James A. West 1983-7-23 448 San Mateo n end Sawyer Ridge (on sw-facing slope above last curve in gravel ridge before intersection above San Andreas Dam); San Francisco Watershed Reserve, Sawyer Ridge 312 Comment
  CAS-BOT-BC295089  Erigeron glaucus Elsie M. Zeile 1921-7-30 1058 San Mateo Salada Comment
  JEPS41479  Erigeron glaucus Adele Lewis Grant 1917-5-6 935 San Mateo near Pescadero; Pebble Beach 3 Comment
  POM357521  Erigeron glaucus Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  JROH693  Erigeron karvinskianus Ann Lambrecht 2009-4-6 40 San Mateo Jasper Ridge Biological Preserve, Stanford University; rock outcrop on south side of San Francisquito Creek below Trail 2 Comment
  CAS-BOT-BC300064  Erigeron philadelphicus Philip Wheeler 1965-7-7 s.n. San Mateo San Bruno Mountain. April Brook Comment
  JROH2723  Eriodictyon californicum D. E. Breedlove 1971-5-31 19391 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH2730  Eriodictyon californicum John Hunter Thomas 1981-5-14 20574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC662625  Eriodictyon californicum L. S. Rose 1941-7-2 41288 San Mateo Kings Mountain 480 Comment
  CAS-BOT-BC216244  Eriodictyon californicum Josephine D. Randall 1907-7-24 166 San Mateo Road to Crystal Springs Lake, Santa Cruz Peninsula Comment
  RSA766408  Eriogonum caninum Delzie Demaree 1933-5-25 10514 San Mateo Sky Line drive Comment
  CHSC56987  Eriogonum fasciculatum var. foliolosum Josephine Boyd 1988-5-11 San Mateo Along ne side of Canada Road ca 0.8 mi s of its jct. with Hwy. 92. 114 Comment
  CAS-BOT-BC250545  Eriogonum gracile Paul H. Arnaud, Jr. 1959-8-2 s.n. San Mateo Hills above Redwood City Comment
  CAS-BOT-BC251987  Eriogonum latifolium J. H. Thomas 1949-6-4 575 San Mateo Along coast, 1.4 miles S. of road to Pescadero Comment
  CAS-BOT-BC251995  Eriogonum latifolium A. D. E. Elmer 1903-7-1 4557 San Mateo Half Moon Bay Comment
  RSA107485  Eriogonum latifolium L. S. Rose 1955-7-25 55167 San Mateo Pigeon Point 6 Comment
  SD12564  Eriogonum latifolium Edith A. Purer 1933-7-27 5370 San Mateo Send dunes two miles south of Pigeon Point Comment
  CAS-BOT-BC251971  Eriogonum latifolium Phillip C. Wheeler 1965-7-7 s.n. San Mateo Pig Ranch Ravine Comment
  SEINET11938063  Eriogonum latifolium E. A. Purer 1933-1 5370 San Mateo 2 mi S of Pigeon Point Comment
  CAS-BOT-BC266071  Eriogonum luteolum A. G. Vestal 1937-7-18 s.n. San Mateo Jasper Ridge, side of ridge not far from Stanford property line Comment
  JEPS111094  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -2 San Mateo Crystal Springs Reservoir, south edge of serpentine (sludge) talus slope, below Hwy 280 on San Francisco Watershed land, 0.1 mi N of Hwy 92 (Ralston Ave.) east of junction with Skyline Blvd 121 Comment
  POM165062  Eriogonum luteolum A. D. E. Elmer 1903-06 4309 San Mateo Belmont Comment
  JROH3224  Eriogonum luteolum var. luteolum A. G. Vestal 1937-7-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Southeast side of ridge not far from Stanford property line. Comment
  LA27120  Eriogonum luteolum var. luteolum L. S. Rose; 1941-9-2 41432 San Mateo W of Redwood City, Emerald Lake 90.0 Comment
  JROH3239  Eriogonum luteolum var. luteolum Carol Zabel 2003-6-23 50 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail b. Comment
  JROH3240  Eriogonum nudum var. auriculatum J. H. Thomas 1962-11-4 10013 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Westridge end. Comment
  RSA393324  Eriogonum nudum var. auriculatum E. A. Purer 1933-8-25 5522 San Mateo Spring Valley Lakes Comment
  SEINET11938131  Eriogonum nudum var. auriculatum E. A. Purer 1933-1 5401 San Mateo Bayshore Highway near Redwood City Comment
  SJSU15946  Eriogonum nudum var. nudum John Rawlings, Ken Hickman 2016-5-26 1822 B San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC304074  Eriophyllum confertiflorum Fred Hemphill 1973-3-17 633 San Mateo San Carlos. N of Malabar Rd and Melendry Dr 207 Comment
  CAS-BOT-BC304086  Eriophyllum confertiflorum Ned Cahill 1974-5-18 285 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  CAS-BOT-BC304088  Eriophyllum confertiflorum Ned Cahill 1974-5-13 267 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  RSA18308  Eriophyllum confertiflorum C. B. Wolf 1927-5-31 408 San Mateo North end of Searsville Lake. Comment
  POM288449  Eriophyllum confertiflorum Lyman Benson 1937-6-24 8389 San Mateo Caol Mine Ridge, Stanford University, Santa Cruz Mt. Range, S. F. Bay Watershed 366 Comment
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Oct 24 2014
  CAS-BOT-BC301269  Eriophyllum lanatum var. arachnoideum John Thomas Howell 1929-8-11 4374 San Mateo King [Kings] Mt. Comment
  JROH725  Eriophyllum lanatum var. arachnoideum W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 from little serpentine hill toward San Francisquito Creek, on left before sharp turn going down to creek Comment
  RSA116759  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1894-7-17 s.n. San Mateo By Bear Gulch Road Comment
  UC614530  Eriophyllum latilobum L. Constance 1938-5-16 2242 San Mateo Half Moon Bay Rd 2 mi sw San Mateo; San Mateo Creek 45 Comment
  UC1377806  Eriophyllum latilobum W. J. Dress 1951-5-30 3274 San Mateo roadside bank in canyon sw of San Mateo Comment
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Mar 6 2006
  CAS-BOT-BC301976  Eriophyllum staechadifolium Saichi Kawahara 1968-7-29 461 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  UC896359  Eriophyllum staechadifolium Lewis S. Rose 1938-8-18 38233 San Mateo 3 mi s San Francisco County line; Skyline Blvd. 60 Comment
  UCR240615  Eriophyllum staechadifolium T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3531 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  CAS-BOT-BC301978  Eriophyllum staechadifolium Elizabeth McClintock 1967-6-24 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  UC484306  Eriophyllum staechadifolium Carl B. Wolf 1930-11-5 1808 San Mateo 2 mi s San Gregorio (hills near the ocean); ocean Comment
  SEINET12182126  Erodium botrys G. A. McCallum 1933-1 s.n. San Mateo near Woodside Comment
  JROH2603  Erodium brachycarpum W. R. Dudley 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine ridge east of Searsville Reservoir. Comment
  JROH2604  Erodium cicutarium John H. Thomas 1974-4-4 17082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC41437  Eruca vesicaria subsp. sativa Elsie Z. Lovegrove 1948-2-22 s.n. San Mateo Coast road near Montara. Comment
  UC174154  Eryngium armatum Katharine Brandegee June, 1905 San Mateo Moss Beach Comment
  JROH236  Eryngium jepsonii John H. Thomas 1964-7-9 10443 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH243  Eryngium jepsonii John Hunter Thomas 1978-7-4 19254 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC54509  Erysimum capitatum James McMurphy 1909-5-25 s.n. San Mateo La Honda. Comment
  CAS-BOT-BC54823  Erysimum franciscanum A. D. E. Elmer 1903-5-1 4480 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC54835  Erysimum franciscanum G. B. Rossbach 1955-3-12 569 San Mateo North face of Devil's Slide, south of Pedro Point, west edge of Montara Mountains. 121 Comment
  CAS-BOT-BC54840  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-3-15 800 San Mateo East side Crystal Springs Lake. 106 Comment
  CAS-BOT-BC54861  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-6-4 914 San Mateo Above southeast shore of Crystal Springs Lake, southwest base Pulgas Ridge. 91 Comment
  CAS-BOT-BC54865  Erysimum franciscanum G. B. Rossbach 1940-4-23 925 San Mateo About 1 mile inland, Montara Mountains, south of San Pedro Valley and northwest of Peak Mountain. 121 Comment
  CAS-BOT-BC54869  Erysimum franciscanum Craig Martz 1985-4-15 205 San Mateo South end of Devil's Slide, both sides of SR1. From coast to saddle between San Pedro and Montara Mountain. 304 Comment
  CAS-BOT-BC54874  Erysimum franciscanum John H. Thomas 1974-5-7 17315 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school. Western side of mountain. Comment
  CAS-BOT-BC54886  Erysimum franciscanum James McMurphy 1909-3-20 s.n. San Mateo Crystal Springs. Comment
  CDA24853  Erysimum franciscanum D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  RSA101843  Erysimum franciscanum G. B. Rossbach 1939-3-28 905 San Mateo Below Crystal Springs Lake 61 Comment
  RSA101923  Erysimum franciscanum G. B. Rossbach 1940-4-23 925 San Mateo About 1 mile inland, Montara Mountains, south of San Pedro Valley and northwest of Peak Mountain. 122 Comment
  SJSU8507  Erysimum franciscanum P. F. Canziani 1979-3-2 San Mateo SW of intersection of Hillside Blvd & Chestnut Ave., San Bruno Mt Comment
  UC1034730  Erysimum franciscanum G. B. and R. P. Rossbach 1939-5-12 912 San Mateo steep gravelly slope of headland above sea Pedro Point Comment
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Nov 23 2007
  UC1034934  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 905 a&b San Mateo creek ravine below Crystal Springs Lake; San Mateo Cr. 60 Comment
  UC1034944  Erysimum franciscanum G. B. and R. P. Rossbach 1938-3-15 800 San Mateo rocky knolls and roadbank on e side of lake Crystal Springs Lake 106 Comment
  CAS-BOT-BC403549  Eschscholzia californica John H. Thomas 1971-5-2 15812 San Mateo Near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  CHSC22755  Eschscholzia californica Robert A. Schlising 1962-2-24 2083 San Mateo the California Coastal Ranges. Roadside, along Cabrillo Hwy (No 1) .7 mi N of county line. Comment
  JROH3100  Eschscholzia californica John Hunter Thomas 1981-4-21 20458 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM149416  Eschscholzia californica C. F. Baker 1903-5-14 3256 San Mateo Crystal Springs, Lake Comment
  UC10015  Eschscholzia californica J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC202732  Euonymus occidentalis M. Bourell; R. Patterson 1994-4-3 5297 San Mateo At northeast end of Hazelnut Trail near Weiler Ranch Road Trail. San Pedro Valley County Park 60 Comment
  CAS-BOT-BC202744  Euonymus occidentalis Roxana Stinchfield 1914-3-1 s.n. San Mateo Above Corte Madera, Santa Cruz Mts. Comment
  RSA116766  Euonymus occidentalis Elmer I. Applegate 1895-5-11 s.n. San Mateo Near Searsville Dam; Santa Cruz Mountain Peninsula. Comment
  UC635625  Euonymus occidentalis var. occidentalis Herbert L. Mason 1924-10-8 1110 San Mateo 2 1/2 mi. w. Palo Alto (n.w. end of Jasper Ridge); Jasper Ridge Comment
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Sep 19 2011
  CAS-BOT-BC202532  Euphorbia John H. Thomas 1968-10-6 14848 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. East of Palo Alto Comment
  RSA133936  Euphorbia helioscopia John H. Thomas 1959-7-8 8014 San Mateo About 1/4 miles west of center of Pescadero on road toward the coast. Comment
  JROH5972  Eurybia radulina Ann Lambrecht, Alice Cummings, John Rawlings 2017-9-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Confluence of Bear Creek and San Francisquito Creek. 84 Comment
  UC1536887  Eurybia radulina G. H. True Jr. 1937-7-31 829 San Mateo near, (Alpine Road near Skyline Blvd.) Skyline Blvd. 182 Comment
  CAS-BOT-BC310616  Eurybia radulina W. R. Dudley 1896-7-30 s.n. San Mateo Santa Cruz Mountain Peninsula. Old Cable Trail near Searsville Comment
  CAS-BOT-BC310618  Eurybia radulina L. R. Abrams 1906-9-24 s.n. San Mateo Goat Ranch, Santa Cruz Mountains near Portola Comment
  JROH5158  Festuca arundinacea John Hunter Thomas 1985-5-21 23664 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  JROH5469  Festuca bromoides Herbert Dengler 1965-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. S.E. of S. end of Searsville Lake. 152 Comment
  JROH5477  Festuca bromoides W. Lennihan 1990-4-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Escobar - right of road just before Trail 15. 176 Comment
  RSA86775  Festuca californica D. D. Keck 1932-5-11 1499 San Mateo Above Woodside on La Honda Road, east slope of Santa Cruz Mountains Comment
  UCD65904  Festuca californica subsp. californica Rimo Bacigalupi; L. Heckard, J. Roof 1961-4-24 7613 San Mateo Due north of true summit of San Bruno Mountain, directly below and northeast of KQED radio power station. 342 Comment
  CAS-BOT-BC278349  Festuca californica subsp. californica W. R. Dudley 1899-4-23 s.n. San Mateo Santa Cruz Mountain Peninsula. Permanente Creek, north Branch Comment
  CAS-BOT-BC282497  Festuca elmeri Peter H. Raven 1950-6-3 2252 San Mateo Woods around San Andreas Lake 121 Comment
  CAS-BOT-BC278475  Festuca idahoensis L. R. A. 1902-5-11 2450 San Mateo Crystal Springs Comment
  JROH5497  Festuca myuros John H. Thomas 1973-3-12 16498 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5505  Festuca myuros John Rawlings 2013-4-16 1132 San Mateo Jasper Ridge Biological Preserve, Stanford University. In and along Trail 2 extension south of the Dengler Transect after a short uphill section where the trail passes a boulder on the uphill side. 84 Comment
  JROH5508  Festuca octoflora Herb Dengler 1963-5-26 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of Ridge. Comment
  JROH5282  Festuca perennis John H. Thomas 1973-6-15 16851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3892512  Fragaria chiloensis R. L. Johnson 2012-4-6 12 -004 San Mateo Half Moon Bay, Redondo Beach Rd. overlooking Pacific Ocean.; 0 25 Comment
  CAS-BOT-BC437029  Fragaria chiloensis A. D. E. Elmer 1903-4-1 4799 San Mateo San Pedro Comment
  CAS-BOT-BC437037  Fragaria chiloensis Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point about 1 mile north of Pigeon Point and about 39 miles south of San Francisco Comment
  CAS-BOT-BC437040  Fragaria chiloensis Walter Knight; Irja Knight 1963-8-5 130 San Mateo Radio Road, San Bruno Mountain Comment
  UC859948  Fragaria vesca Lewis S. Rose 1933-6-23 33251 San Mateo Kings Mountain Comment
  JROH5912  Fragaria vesca L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near San Fracisquito Creek, east of the Redwood grove Comment
  SBBG28507  Frangula californica subsp. californica C. B. Wolf 1927-11-27 San Mateo just S of Pescadero Comment
  JROH3574  Frangula californica subsp. tomentella John Hunter Thomas 1981-2-14 20213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC211607  Frankenia salina Phillip C. Wheeler 1965-8-14 s.n. San Mateo Brisbane Lagoon, San Bruno Mountain Comment
  UC872056  Frankenia salina Roxana Stinchfield 1915-9-19 251 San Mateo salt marshes Santa Cruz Mountain Peninsula, Palo Alto Comment
  CAS-BOT-BC223553  Fraxinus latifolia A. D. E. Elmer 1903-7-1 4615 San Mateo San Mateo Creek Comment
  CAS-BOT-BC130122  Fritillaria affinis L. R. A. 1902-4-13 2339 San Mateo Crystal Springs Lake Comment
  POM169607  Fritillaria affinis C. F. Baker 1903-03 5047 San Mateo Crystal Springs Lake. Comment
  UC803943  Fritillaria affinis G. L. Stebbins Jr. 1949-6-5 3984 San Mateo 1/2 mi n of La Honda (along highway) Comment
  CAS-BOT-BC130210  Fritillaria agrestis Roxana S. Ferris 1921-3-21 2120 San Mateo New Years Point - [Ann] Ano Nuevo Comment
  RSA0000351  Fritillaria grayana Inez Smith 1914-3-12 s.n. San Mateo Hillsboro. Comment
  SEINET3886769  Fritillaria lanceolata Robert A. Norris 1984-3-21 4649 San Mateo By Radio Road, San Bruno Mts.; 0 253 Comment
  POM273462  Fritillaria liliacea Lyman Benson 1929-3-16 s.n. San Mateo Crystal Springs Lake, Spring Valley Comment
  SDSU20660  Fritillaria liliacea Sean Ryan 2011-3-19 77 San Mateo On E side of Serpentine Loop trail, 175 yds N of the service road entering from Robertson Way. Edgewood County Park. 209 Comment
  UCD163788  Galium Peter Rubtzoff 1988-6-25 9928 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  CDA9440  Galium californicum D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  UCD166156  Galium californicum Jack Major; M. Forde and S. Bamberg 1962-4-3 741 a San Mateo Above Coastways Ranch on Finney Creek. (Exact location unknown. Coordinates estimated by label maker.) Comment
  JROH3799  Galium murale John H. Thomas 1976-4-30 18103 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  JROH3804  Galium murale John Hunter Thomas 1987-4-30 24219 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA28811  Galium triflorum D. G. Kelch 2009-6-9 9 .402 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  POM204331  Gamochaeta ustulata I. L. Wiggins 1929-7-4 3772 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  POM58032  Gamochaeta ustulata E. B. Copeland 1903-6-18 3312 San Mateo Montara Point. Comment
  CAS-BOT-BC303464  Gamochaeta ustulata Elizabeth McClintock 1963-6-9 s.n. San Mateo Exposed slopes below top of mountain, San Bruno Mt Comment
  CAS-BOT-BC303471  Gamochaeta ustulata Margaret A. Barry 1937-5-15 141 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC344858  Gamochaeta ustulata Peter Rubtzoff 1975-10-24 8431 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC194559  Garrya elliptica A. D. E. Elmer 1903-2-1 4469 San Mateo Portola Comment
  CAS-BOT-BC194561  Garrya elliptica Phillip C. Wheeler 1965-4-27 s.n. San Mateo Sierra point Comment
  SD41264  Garrya elliptica Delzie Demaree 1930-2-1 7312 San Mateo Los Trancos Woods. Comment
  SACT001241  Gastridium ventricosum Malcolm Nobs, S. Smith 1949-8-26 San Mateo Marshy streambank about 1 mile south of Pigeon Point. Comment
  CAS-BOT-BC59635  Gaultheria shallon Walter Knight; Irja Knight 1965-2-28 863 San Mateo Ca. 100 yds above Eucalyptus Grove off Radio Road. Comment
  CAS-BOT-BC59639  Gaultheria shallon Herbert L. Mason 1920-6-25 s.n. San Mateo Pescadero Cr. Comment
  JROH2019  Genista monspessulana John Hunter Thomas 1991-5-2 25005 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  UCR121492  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4956 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  UCR122631  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6767 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  JROH3169  Gilia John Hunter Thomas 1983-4-20 21534 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing Comment
  JROH3160  Gilia achilleifolia subsp. multicaulis John Hunter Thomas 1992-4-23 25148 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  SD38802  Gilia achilleifolia subsp. multicaulis E. A. Purer 1933-5-8 3609 San Mateo Stevens Creek Comment
  UC75487  Gilia clivorum C. F. Baker Apr 1903 1930 San Mateo Crystal Springs Lake Comment
  SD38795  Gilia tricolor Alice Spalding 1933-4-18 3724 San Mateo Comment
  SEINET3869111  Ginkgo biloba Bill Popin 1988-10-9 44 San Mateo Central Park.; 0 Comment
  CAS-BOT-BC266511  Githopsis diffusa Margaret A. Barry 1937-5-15 s.n. San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC303681  Glebionis coronaria J. H. Thomas 1961-5-7 9245 San Mateo Colma. Near intersection of El Camino Real and F Street 45 Comment
  UCR240781  Glehnia littoralis subsp. leiocarpa T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3515 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  JROH5826  Glycyrrhiza lepidota Ann Lambrecht 2011-12-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north bank of San Francisquito Cr. near water's edge 83 Comment
  CDA6003  Gnaphalium canescens subsp. beneolens A. C. Browne 1950-8-12 San Mateo Alpine Creek. 0 Comment
  SEINET3386993 Image available Gnaphalium ramosissimum Lewis S. Rose 1935-8-13 35568 San Mateo Salada, Brushy coastal hills. 30 Comment
  POM359103  Grindelia D. D. Keck 1931-9-27 1273 San Mateo Dumbarton Bridge. Comment
  CAS-BOT-BC304506  Grindelia hirsutula John H. Thomas 1968-10-6 14845 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. East of Palo Alto Comment
  CAS-BOT-BC304508  Grindelia hirsutula W. R. Dudley 1894-1-28 s.n. San Mateo Santa Cruz Peninsula. Redwood Creek Comment
  CAS-BOT-BC304522  Grindelia hirsutula David D. Keck 1934-7-7 294307 San Mateo Pigeon Point Comment
  JEPS121472  Grindelia hirsutula Adam C. Schneider with Alison Colwell 2013-6-23 291 San Mateo Pacifica State Beach, west of CA State Highway 1. Comment
  JEPS24549  Grindelia hirsutula V. F. Hesse 1959-6-18 2690 a San Mateo 4 mi n of Saratoga Summit 701 Comment
  POM190261  Grindelia hirsutula D. D. Keck 1932-5-25 1783 San Mateo Hills two miles W of Belmont Comment
  POM58290  Grindelia hirsutula C. F. Baker 1902-5-10 812 San Mateo Summit of Coast Range. Comment
  SD39801  Grindelia hirsutula Edith A. Purer 1933-7-27 5369 San Mateo Sand dunes, two miles south of Pigeon Point. Comment
  SJSU23  Grindelia hirsutula C. D. Duncan 1925-5-23 San Mateo S end Jasper Ridge above Searsville L Comment
  JROH827  Grindelia hirsutula John Hunter Thomas 1988-5-3 24442 San Mateo Jasper Ridge Biological Preserve, Stanford University; powerline draw Comment
  POM51491  Grindelia stricta var. platyphylla Katherine Brandegee 1917-7-15 s.n. San Mateo Moss Beach. Comment
  RSA18368  Grindelia stricta var. platyphylla C. B. Wolf 1927-6-29 540 San Mateo South of Pebble Beach near Pescadero Comment
  JEPS35417  Helenium puberulum L. M. Newlon 1921-7-30 254 San Mateo seashore from Salada to Mussel Comment
  JROH838  Helenium puberulum John Hunter Thomas 1977-6-16 18744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA3886  Helenium puberulum I. L. Wiggins 1929-7-4 3791 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  UC407000  Helenium puberulum W. R. Dudley 1895-6-14 San Mateo near Searsville; San Francisquito Creek Comment
  HSC23988  Helenium puberulum Mary Katherine Wicksten 1971-6-22 93 San Mateo Huddart Park; by Madrone Area, toward Miwok Shelter Comment
  RSA70702  Helenium puberulum L. S. Rose 1949-8-10 49157 San Mateo Skyline Blvd, W of Tanforan 122 Comment
  UC917226  Helenium puberulum W. A. Harvey and J. M. Tucker 1948-6-28 1701 San Mateo on ridge ca 3 mi n Pescadero Comment
  JROH852  Helianthella californica var. californica John H. Thomas 1967-5-12 12880 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC224057  Helianthemum scoparium George Oberlander 1949-6-25 225 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC313451  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1902-5-11 2446 San Mateo Crystal Springs Comment
  CAS-BOT-BC314946  Hemizonia congesta subsp. luzulifolia A. D. E. Elmer 1903-5-1 4805 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC314948  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  CAS-BOT-BC314950  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  JEPS30897  Hemizonia congesta subsp. luzulifolia J. H. Thomas 1958-6-11 7228 San Mateo about 4.3 mi due e Belmont (near Crystal Springs Reservoir) 91 Comment
  JEPS40999  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-9-5 64070 San Mateo w Redwood City; Emerald Lake 243 Comment
  SD30842  Hemizonia congesta subsp. luzulifolia Edith A. Purer 1933-8-4 5398 San Mateo Along roadsides of Bayshore Highway. Comment
  UC1584834  Hemizonia congesta subsp. luzulifolia Jerry Powell 1990-5-11 1580 San Mateo at junction of Hwy 280 and Hwy 92 Comment
  POM360310  Hemizonia luzulifolia L. S. Rose 1935-9-21 35652 San Mateo Redwood City. Comment
  POM360314  Hemizonia luzulifolia D. D. Keck 1932-5-6 1492 San Mateo East side of Crystal Springs Lake. 61 Comment
  RSA81636  Hemizonia luzulifolia James I. McMurphy 1909-5-25 s.n. San Mateo Summit between San Mateo and Crystal Springs Lakes. Comment
  UCSB18565  Heracleum maximum Schulte, John 1963-4-28 San Mateo Sausal Creek, Jasper Ridge Area, 3 miles SW of Stanford, between Santa Clara Valley and main front of Santa Cruz Mountains 121 Comment
  CAS-BOT-BC310249  Hesperevax sparsiflora var. sparsiflora L. R. A. 1902-5-4 2417 San Mateo Woodside Comment
  JROH892  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-5-25 20634 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH898  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1987-5-5 24253 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH900  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1991-5-9 25044 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4228  Hesperocnide tenella John H. Thomas 1974-5-19 17384 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403870  Hesperocnide tenella James McMurphy 1906-5-14 s.n. San Mateo Above Stanford Residence, San Francisquito Creek Comment
  JEPS121586  Hesperolinon disjunctum Ryan E. O'Dell 2013-6-13 San Mateo About 1.35 airline mile S of Black Mountain peak. Comment
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Jan 13 2022
  JROH2933  Hesperolinon micranthum John Hunter Thomas 1981-5-25 20624 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC422602  Hesperomecon linearis A. D. E. Elmer 1903-6-1 4594 San Mateo San Bruno Hills Comment
  CAS-BOT-BC148470  Heteromeles arbutifolia Walter Knight; Irja Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  HSC23976  Heteromeles arbutifolia Mary Katherine Wicksten 1971-6-29 136 San Mateo Huddart Park, along Zweirlein Trail Comment
  JROH5895  Heteromeles arbutifolia M. Ray 1982-3-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail leading to the west side of the dam. Comment
  SBBG32393  Heterotheca sessiliflora subsp. bolanderi L. S. Rose 1966-8-20 66087 San Mateo summit, San Bruno Mtn 365 Comment
  UC1577655  Heterotheca sessiliflora subsp. echioides N. K. Carlson 1935-6-21 77 San Mateo Ridge between Slate and Oil Creek; Santa Cruz Quadrangle Comment
  CAS-BOT-BC310764  Heterotheca sessiliflora subsp. echioides W. R. Dudley 1906-10-12 s.n. San Mateo Santa Cruz Mountain Peninsula. In Gulch E. of Jersey Farm Comment
  CAS-BOT-BC310771  Heterotheca sessiliflora subsp. echioides C. F. Leitholt 1894-7-28 s.n. San Mateo Road above Buck Horn Ranch near Portola Comment
  JEPS27369  Heuchera micrantha Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7629 San Mateo below and se of end of paved ridge-top road just e of KRON television tower and station San Bruno Mt summit (Guadalupe Valley side of); San Bruno Mt 304 Comment
  JROH3885  Heuchera micrantha John H. Thomas 1970-5-16 15628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC420896  Heuchera micrantha var. diversifolia Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC420889  Heuchera micrantha var. diversifolia Kellogg; Brannan 1880-5-31 s.n. San Mateo Redwoods Comment
  CAS-BOT-BC420898  Heuchera micrantha var. erubescens L. S. Rose 1895-6-6 s.n. San Mateo Pescadero Creek near Iverson's Comment
  UC858020  Heuchera micrantha var. erubescens Lewis S. Rose 1939-6-16 39280 San Mateo Kings Mountain 670 Comment
  CAS-BOT-BC424428  Heuchera pilosissima Ira L. Wiggins 1925-5-24 1742 San Mateo Along county road from Pescadero to Pebble Beach just before coming to the artichoke lands of the American Produce Co. Comment
  RSA0063064  Heuchera pilosissima I. L. Wiggins 1925-5-24 1742 San Mateo Along county road from Pescadero to Pebble Beach along rich swamp land just before coming to the artichoke lands of the American Produce Co. Comment
  JEPS48461  Hierochloe occidentalis James G. Daly 1934-1 179 San Mateo 3 mi w Skyline Boulevard Comment
  CAS-BOT-BC55444  Hirschfeldia incana George Oberlander 1949-7-24 290 San Mateo San Francisco Watershed. Grassland about San Andreas Lake. Comment
  JROH1534  Hirschfeldia incana John Hunter Thomas 1977-6-16 18749 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  CAS-BOT-BC55436  Hirschfeldia incana Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountains. Base of Quarry 2. Comment
  RSA0017050  Hoffmannseggia glauca T. S. Brandegee 1889-2-2 s.n. San Mateo San Gregorio Comment
  JROH5206  Holcus lanatus John H. Thomas 1967-5-31 12929 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5213  Holcus lanatus John Hunter Thomas 1982-6-7 21033 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD146168  Holodiscus discolor G. K. Helmkamp, E. A. Helmkamp 1999-6-28 4973 San Mateo Pescadero Creek Watershed: Pescadero Rd. just N of Loma Mar. 106 Comment
  CAS-BOT-BC150059  Holodiscus discolor var. discolor Robert Robertson 1954-5-1 110 San Mateo By road 2 miles east of Pescadero 30 Comment
  JROH3687  Holodiscus discolor var. discolor John H. Thomas 1962-7-15 9916 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near northern end of ridge. Comment
  RSA0034585  Hordeum brachyantherum D. D. Keck 1932-5-6 1465 San Mateo Belmont. Comment
  SEINET7297786 Image available Hordeum brachyantherum David D. Keck 1932-1 1463 San Mateo Belmont; Common in fields near the salt marshes of San Francisco Bay. Comment
  JROH5221  Hordeum brachyantherum subsp. californicum John H. Thomas 1973-6-10 16820 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5222  Hordeum brachyantherum subsp. californicum John H. Thomas 1975-5-26 17916 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET6851597  Hordeum geniculatum Robert A. Evers, Clara V. Evers 1975-8-24 115025 -B San Mateo Trailer Villa, Redwood City. Comment
  RSA0115578  Hordeum hystrix L. S. Rose 1953-4-17 53015 San Mateo Redwood City, along Bayshore Highway 3 Comment
  CAS-BOT-BC285153  Hordeum marinum subsp. gussoneanum Le Roy Abrams 1901-5-1 1660 San Mateo Cooley's Landing Comment
  SEINET11678403  Hordeum murinum E. A. Purer 1933-1 5372 San Mateo 2 mi S of Pigeon Point Comment
  CAS-BOT-BC289396  Hordeum murinum subsp. glaucum Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi. N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC289460  Hordeum murinum subsp. leporinum Fred Hemphill 1973-5-6 780 San Mateo North of Malabrar Road and Melendy Drive, San Carlos 207 Comment
  JROH5259  Hordeum murinum subsp. leporinum John Hunter Thomas 1987-5-15 24287 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Low flow crossing. Comment
  RSA181231  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10152 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC271353  Hordeum vulgare J. H. Thomas 1962-5-12 9862 San Mateo Franklin Point, about sea level Comment
  JEPS34468  Horkelia californica L. R. Heckard and R. Bacigalupi 1963-7-2 1357 San Mateo Trail to Montara Peak (NW slope) above old county road 304 Comment
  RSA498673  Horkelia californica E. A. Purer 1933-7-27 5341 San Mateo Pigeon Point Comment
  CAS-BOT-BC536141  Horkelia californica W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  CAS-BOT-BC536152  Horkelia californica Peter Rubtzoff 1975-9-11 8380 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, San Bruno Mountains Comment
  OBI10116  Horkelia californica Lewis S. Rose 1966-8-20 66086 San Mateo San Bruno Mtn. Head of Colma Cyn 206 Comment
  CAS-BOT-BC532057  Horkelia californica var. frondosa W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  JEPS101839  Horkelia cuneata subsp. sericea Dean W. Taylor 2000-4-25 17450 San Mateo 1.5 air mi E of Half Moon Bay; Frenchmans Creek, Apanilio Creek 160 Comment
  JEPS17469  Hydrocotyle ranunculoides W. L. Jepson 1910-8-18 4161 San Mateo Butano Creek Comment
Read comments
Sep 6 2011
  CDA20055  Hydrocotyle ranunculoides L. Kuwahara 2002-10-9 PDR 064651 San Mateo San Francisco Bay Area; Pomponio Ranch, 3300 Pomponio Crk Rd, San Gregorio. 0 Comment
  UCR121587  Hypericum calycinum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4966 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  UCD160243  Hypericum canariense Christopher Dillis 2015-5-15 6 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  JROH913  Hypochaeris glabra John H. Thomas 1965-4-28 10596 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH914  Hypochaeris glabra John H. Thomas 1966-4-22 11573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC311399  Hypochaeris glabra John Thomas Howell 1926-4-24 1926 San Mateo Daly City Comment
  JROH920  Hypochaeris glabra John Hunter Thomas 1985-5-11 24743 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC311492  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  CDA34775  Hypochaeris radicata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .174 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  UC1069667  Hypochaeris radicata G. E. Sindel 1935-7-30 316 San Mateo 2.5 mi nnw Pescadero; Santa Cruz Quad. Comment
  SEINET7097928  Iris douglasiana A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  POM263704  Iris douglasiana R. C. Foster 1937-4-30 213 San Mateo Between San Bruno and the Skyline Boulevard Comment
  SEINET10529078  Iris douglasiana R. D. Sage 1992-1-6 Sage 13394 -1 San Mateo Collected along purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  CAS-BOT-BC133655  Iris longipetala C. F. B. 1902-3-22 348 San Mateo South San Francisco Comment
  CAS-BOT-BC133664  Iris longipetala Alice Eastwood 1914-3-12 3751 San Mateo San Bruno Hills Comment
  CAS-BOT-BC133671  Iris longipetala Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge Comment
  OBI2898  Iris longipetala Lewis S. Rose 1968-3-26 68009 San Mateo South base of San Bruno Mts, South San Francisco 30 Comment
  SEINET5883393 Image available Iris longipetala L. S. Rose 1964-1 64020 San Mateo S San Francisco, San Bruno Mtn, alt ca 200 ft Comment
  RSA32647  Iris missouriensis Carl B. Wolf 1943-3-3 11443 San Mateo Visitation Point, along the Bayshore Highway, just north of community of Brisbane 61 Comment
  JROH4431  Iris pseudacorus John R. Barth 1963-4-13 4 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake 103 Comment
  CAS-BOT-BC57733  Isoetes howellii L. R. Abrams 1923-4-19 10108 San Mateo Alameda de los Pulgas back of Menlo Park Comment
  CAS-BOT-BC112609  Isolepis cernua John Hunter Thomas 1955-7-17 5290 San Mateo Along the coast, 1.6 miles S of Dolan Creek. 91 Comment
  CAS-BOT-BC112612  Isolepis cernua John Hunter Thomas 1959-7-8 8017 San Mateo Low moist coastal bluffs as Pescadero Beach. Comment
  POM185726  Isolepis cernua E. B. Copeland 1903-5-24 3258 San Mateo Montara Point. Comment
  SEINET7589112 Image available Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point. Comment
  POM223675  Jaumea carnosa L. S. Rose 1935-8-13 35566 San Mateo Salada. Comment
  CAS-BOT-BC340137  Jaumea carnosa Ray Pestrong 1963-11-8 s.n. San Mateo South San Francisco Bay. Near east Palo Alto, Dumbarton Bridge Comment
  JROH2771  Juglans hindsii John H. Thomas 1976-11-5 18432 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  CAS-BOT-BC173698  Juncus bufonius Peter Rubtzoff 1977-6-21 9066 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET3877729  Juncus bufonius Kaye H. Thorne, J. Chandler 1986-7-25 4921 San Mateo Half Moon Bay, 2 mi S of Moss Beach at Dune Beach. Sand dunes and beach area adjacent to the Pacific Ocean.; 0 Comment
  JROH4454  Juncus bufonius var. bufonius Carol Zabel 2003-3-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along both sides of Road F at intersection with Trail 15. Comment
  JEPS10200  Juncus bufonius var. congestus Rimo Bacigalupi with G. T. Robbins 1954-6-18 4559 San Mateo Point Ano Nuevo Comment
  JROH4470  Juncus bufonius var. occidentalis John Hunter Thomas 1983-5-23 22251 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Near shack side and low-flow crossing. Comment
  UC1101089  Juncus hesperius Malcolm A. Nobs and S. Galen Smith 1949-8-26 1588 San Mateo about 1 mi s Half Moon Bay Comment
  CAS-BOT-BC176167  Juncus lescurii Peter Rubtzoff 1977-11-24 9145 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4479  Juncus occidentalis John H. Thomas 1967-5-10 12856 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15929  Juncus occidentalis John Rawlings, Toni Corelli 2016-4-29 1762 San Mateo Cascade Field, north and south of Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  UC14912  Juncus occidentalis Joseph Burtt Davy 1893-6-22 761 San Mateo Lake Vilarcitos Comment
  JROH4499  Juncus patens John H. Thomas 1973-6-15 16828 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4502  Juncus patens John Hunter Thomas 1981-7-12 20687 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA494799  Juncus patens Lyman Benson 1930-4-17 2069 San Mateo Stanford University. 152 Comment
  CAS-BOT-BC182761  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9230 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JEPS128398  Juncus xiphioides Adam C. Schneider 2014-5-17 137 San Mateo Crystal Springs Reservoir. Comment
  CAS-BOT-BC508359  Kniphofia Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo Edge of P.G.&E. marsh, San Bruno Mountains Comment
  JROH5266  Koeleria macrantha Louis Adams 1963-5-25 26 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy field adjacent to Searsville Lake. Comment
  POM190453  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  POM347043  Koeleria macrantha Lyman Benson 1935-5-5 6535 San Mateo Lake Searsville; Santa Cruz Mt. Range 152 Comment
  UC501383  Koeleria macrantha David D. Keck 1932-5-6 1476 San Mateo above Millbrae Highlands; above Millbrae Highlands Comment
  UCD86022  Koeleria macrantha A. A. Beetle 1942-6-11 3597 San Mateo rt. 5, 15 miles south of San Bruno. Comment
  CAS-BOT-BC273732  Koeleria pyramidata Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  JROH945  Lactuca saligna John H. Thomas 1974-6-30 17459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC341631  Lagophylla ramosissima Margaret A. Barry 1937-6-22 168 San Mateo Coal Mine Ridge Comment
  JROH5656  Lagophylla ramosissima John Rawlings 2014-5-23 1260 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 15. 190 Comment
  JROH965  Lagophylla ramosissima John Hunter Thomas 1983-6-29 22722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM194884  Lagophylla ramosissima D. D. Keck, William M. Heusi 1929-10-24 500 San Mateo Summit of Coast Range, Alpine Creek Road. 686 Comment
  JROH5638  Lapsana communis John Rawlings 2014-6-2 1250 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek and Preserve Boundary. 87 Comment
  CAS-BOT-BC339060  Lasthenia californica John H. Thomas 1961-5-7 9251 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC339065  Lasthenia californica John Thomas Howell 1933-5-26 11347 San Mateo Crystal Springs Lake Comment
  CDA33782  Lasthenia californica D. G. Kelch 2011-3-13 11 .047 San Mateo Pacifica. Along sea bluffs Comment
  POM55142  Lasthenia californica C. F. Baker 1903-4-6 1890 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC339054  Lasthenia californica Javier Penalosa 1963-3-9 2689 San Mateo San Bruno Mountain. 1/2 mi. east of 1314 ft. summit 304 Comment
  CAS-BOT-BC339094  Lasthenia californica W. R. Dudley 1899-5-14 s.n. San Mateo About hills southwest of Baden Comment
  JROH5789  Lasthenia californica subsp. californica John Rawlings 2016-5-3 1781 San Mateo Jasper Ridge Biological Preserve, Stanford University; bare, rocky, sepentinite about 30 yards west of Rd F in Area C 177 Comment
  UC1537021  Lasthenia californica subsp. californica Gordon H. True Jr. 1936-6-7 483 San Mateo top of ocean bluff at cove 2 mi. s Pescadero 15 Comment
  UC90022  Lasthenia californica subsp. californica Alice Eastwood 1901-5-19 San Mateo Blenheim Comment
  CAS-BOT-BC355497  Lasthenia glaberrima W. R. Dudley 1906-5-22 s.n. San Mateo Largest Pond, Coal Mine Ridge Comment
  JEPS98726  Lasthenia glabrata subsp. glabrata Raymund Chan 1997-4-12 97012 San Mateo 50 m S of Edgewood Road just before its junction with Canada Road, W of I-280; watershed property; plants not visible from road Comment
  RSA14967  Lasthenia glabrata subsp. glabrata L. S. Rose 1935-5-4 35148 San Mateo Burlingame. Comment
  RSA262209  Lasthenia glabrata subsp. glabrata John H. Thomas 1971-5-2 15794 San Mateo Near intersection of Canada and Edgewater roads; about 3 miles westward from Redwood City. 152 Comment
  JEPS13751  Lasthenia gracilis Frank W. Gould 1939-5-6 662 San Mateo Comment
  UCD133776  Lasthenia gracilis R. E. Dengler 1960-4-10 4 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  RSA116657  Lasthenia macrantha subsp. macrantha H. L. Mason 1921-6-1 s.n . San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC368186  Lasthenia minor Robert Robertson 1959-5-1 114 San Mateo Pescadero Beach. 9 Comment
  CAS-BOT-BC368188  Lasthenia minor Kenton L. Chambers 1956-6-20 1044 San Mateo Mouth of Pescadero Creek, on bluff between Hwy. 1 and the ocean; around parking area Comment
  SEINET5630609 Image available Lathyrus Unknown 1907-1 8583 San Mateo Back of San Mateo, on the Half Moon Bay road Comment
  JROH5875  Lathyrus latifolius Ann Lambrecht 2011-8-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 between Trail 5 intersection and culvert Comment
  SFV1827  Lathyrus littoralis W. R. Russell 1961-6-5 s. n. San Mateo North end of Pacifica (formerly Sharp Park), sand hills about 1 block west of business district. Comment
  UCD77799  Lathyrus torreyi Robert E. Preston 2001-5-30 1536 San Mateo Ca. 9 mi nnw of Boulder Creek, T8S R3W sw 1/4 of se 1/4 Section 10 304 Comment
  SEINET3557952 Image available Lathyrus vestitus Lewis S. Rose 1932-5-3 32208 San Mateo San Bruno. 183 Comment
  UCD106475  Lathyrus vestitus A. A. Heller 1907-4-20 8454 San Mateo San Bruno Hills. Comment
  SEINET956312  Lathyrus vestitus Ira L. Wiggins 1925-1 1661 San Mateo On King Mountain Road three fourths of a mile above Woodside in the old cut over redwood. Comment
  POM87741  Lathyrus vestitus subsp. bolanderi L. R. Abrams 1902-4-13 2342 San Mateo Crystal Springs Lake. Comment
  JROH2031  Lathyrus vestitus var. vestitus John H. Thomas 1973-4-14 16570 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC69549  Lathyrus vestitus var. vestitus J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  UC85257  Lathyrus vestitus var. vestitus C. F. Baker 1902-5-10 801 San Mateo Kings Mt. Comment
  UCR252690  Lavatera arborea A. C. Sanders 2014-8-3 41237 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  UC913065  Layia chrysanthemoides David D. Keck 1932-5-6 1487 San Mateo near Skyline Boulevard (w of Millbrae Highlands) Comment
  CAS-BOT-BC323151  Layia chrysanthemoides David D. Keck 1933-5-11 2307 San Mateo Skyline Boulevard, E of Salada, northern San Mateo County. Comment
  POM298220  Layia chrysanthemoides D. D. Keck 1932-4-29 1450 San Mateo Redwood City. Comment
  CAS-BOT-BC321075  Layia gaillardioides James McMurphy 1907-4-27 s.n. San Mateo Kings Mt. Comment
  UC30645  Layia gaillardioides J. Burtt Davy 1895-4-20 1081 San Mateo San Mateo Creek Comment
  UC34543  Layia gaillardioides unknown 1888-4-12 San Mateo San Pedro Ranch Comment
  CAS-BOT-BC321070  Layia gaillardioides Rimo Bacigalupi 1923-4-29 s.n. San Mateo Dr. Williams' place, Old La Honda Grade near La Holda. Comment
  UC828922  Layia gaillardioides Lewis S. Rose 1935-5-4 35149 San Mateo Burlingame Comment
  CAS-BOT-BC327477  Layia hieracioides Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain; base of Quarry 2. Comment
  CAS-BOT-BC327504  Layia hieracioides J. H. Thomas 1958-6-11 7223 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  JEPS27361  Layia hieracioides Rimo Bacigalupi with Jim Roof and L. R. Heckard 1961-4-24 7621 San Mateo lateral ridge below and se of end of paved ridge-top road just e KRON television tower and station (Guadalupe Valley side of mt.); San Bruno Mountain 304 Comment
  JROH988  Layia hieracioides John Hunter Thomas 1980-5-8 19945 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA124759  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo Jasper Ridge. About 5 miles SW of Palo Alto. 152 Comment
  UC583132  Layia hieracioides Lewis S. Rose 1936-5-28 36309 San Mateo w of Redwood City; Emerald Lake 91 Comment
  CAS-BOT-BC327453  Layia hieracioides David D. Keck 1933-5-11 2299 San Mateo Near west base of Montara MOuntain Grade (south side of mountain) Comment
  JROH982  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo Jasper Ridge Biological Preserve, Stanford University; along trail near Searsville Lake Comment
  POM298308  Layia hieracioides D. D. Keck, Wm Hiesey 1940-6-1 5166 San Mateo Skyline Blvd. opposite N end of Lake San Andreas. 137 Comment
  CAS-BOT-BC382081  Layia platyglossa Le Roy Abrams 1902-5-11 2442 San Mateo Crystal Springs Comment
  UCD69035  Layia platyglossa P. Rodriguez-Rojo 1997-3-27 San Mateo Jasper Ridge. Serpentine annual grasslands. UTM: 10SEM4168 155 Comment
Read comments
Sep 9 2011
  CAS-BOT-BC534546  Lemna gibba A. D. E. Elmer 1903-7-1 4765 San Mateo San Pedro Comment
  CAS-BOT-BC534548  Lemna gibba W. R. Dudley 1898-1-5 s.n. San Mateo Santa Cruz Peninsula, between Pescadero and Swanton Comment
  CAS-BOT-BC534550  Lemna gibba W. R. Dudley 1908-6-19 s.n. San Mateo Santa Cruz Peninsula, Ditch N. of Jersey Farm Dairy Comment
  JROH4537  Lemna minor John Hunter Thomas 1981-6-4 20670 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing of San Francisquito Creek Comment
  CAS-BOT-BC527274  Lemna minuta Roxana S. Ferris 1920-10-1 2100 San Mateo 1st mud lake, Coal Mine Ridge, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC221522  Lepechinia calycina George Oberlander 1940-5-31 142 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  JROH2783  Lepechinia calycina L. R. Abrams 1915-11-1 5479 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH2784  Lepechinia calycina John H. Thomas 1955-5-6 5015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2791  Lepechinia calycina D. E. Breedlove 1971-5-31 19348 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH2792  Lepechinia calycina John H. Thomas 1973-5-5 16769 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC518036  Lepechinia calycina Lewis S. Rose 1933-6-9 33225 San Mateo Belmont Comment
  SEINET12277319  Lepechinia calycina Unknown 1932-1 9175 San Mateo Gov. Rolph's Estate Comment
  CAS-BOT-BC89130  Lepidium didymum J. H. Thomas 1958-8-1 7370 San Mateo About 0.5 mile north of mouth of Pescadero Creek. 0 Comment
  CAS-BOT-BC12599  Lepidium nitidum John H. Thomas 1959-2-23 7519 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 182 Comment
  JROH1543  Lepidium nitidum John H. Thomas 1968-3-17 14190 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1551  Lepidium nitidum John Hunter Thomas 1983-2-21 21283 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12595  Lepidium nitidum Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountains. Below top of mountain in vicinity of radio station. Comment
  CAS-BOT-BC12844  Lepidium pinnatifidum Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon. Comment
  JROH5273  Leptochloa fusca subsp. fascicularis Ann Lambrecht 2006-8-23 33 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry streambed of San Francisquito Creek 71 Comment
  JROH5274  Leptochloa fusca subsp. uninervia W. Lennihan 1980-11-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake (formed by Corte Madera Creek). Comment
  CAS-BOT-BC226606  Leptosiphon ambiguus H. A. Dutton 1900-3-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC226608  Leptosiphon ambiguus Arthur Spiegler 1952-4-26 27 San Mateo 4 miles from Woodside on Canada Road to Skyline Boulevard Comment
  POM65849  Leptosiphon ambiguus C. F. Baker 1902-5-4 751 San Mateo Woodside. Comment
  RSA18460  Leptosiphon androsaceus C. B. Wolf 1927-6-29 547 -A San Mateo Along coast south of Pebble Beach near Pescadero. Comment
  UC2049870  Leptosiphon androsaceus H. W. Johansen 1958-8-13 116 San Mateo Crystal Springs Road, 2 miles W of San Mateo Comment
  JROH5924  Leptosiphon androsaceus Herb Dengler 1970-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  UC106675  Leptosiphon croceus Katharine Brandegee 1905-6-19 San Mateo Moss Beach (Wienke's) Moss Beach Comment
Read comments
Jun 26 2010
  SD214610  Leptosiphon parviflorus Carl B. Wolf 1929-5-25 3727 San Mateo Pebble Beach so. of Pescadero Comment
  UC729640  Leptosiphon parviflorus Carl B. Wolf 1929-5-25 3727 San Mateo s of Pescadero; Pebble Beach Comment
  RSA0103655  Leptosiphon parviflorus C. B. Wolf 1929-5-25 3727 San Mateo Pebble Beach, S of Pescadero. Comment
  UC106678  Leptosiphon rosaceus Katharine Brandegee 1905-6-19 San Mateo Moss Beach Halfmoon Bay Comment
  CAS-BOT-BC324052  Lessingia arachnoidea W. R. Dudley 1909-10-10 s.n. San Mateo East side of Crystal Springs Reservoir, Santa Cruz Mountains Comment
  CAS-BOT-BC324067  Lessingia arachnoidea W. R. Dudley 1896-11-15 s.n. San Mateo Near Crystal Srings Reservoir, Santa Cruz Mountains Comment
  CAS-BOT-BC539289  Lessingia arachnoidea John Rawlings; Ken Hickman 2016-7-21 1906 San Mateo Caltrans right-of-way upslope from Hwy 92 W onramp to Hwy 280 N; downslope from San Francisco Watershed fenceline 122 Comment
  JEPS88045  Lessingia arachnoidea S. Markos 1996-7-28 126 San Mateo 200 yds S of Junction with Golf Course Rd. and Skyline Blvd.; Crystal Springs Reservoir Comment
  OBI15796  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo Crystal Srpings Lakes; W of San Mateo 244 Comment
  POM197775  Lessingia arachnoidea John T. Howell 1926-10-9 2220 San Mateo Between Lake San Andreas and Crystal Springs Lake Comment
  POM263773  Lessingia arachnoidea L. S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon 90 Comment
  RSA181929  Lessingia arachnoidea Willard Spence 1960-7-2 555 San Mateo Route 5, Crystal Springs Lake Comment
  UC33162  Lessingia arachnoidea Alice Eastwood 1896-9-1 San Mateo Crystal Springs Reservoir Comment
  RSA0001373  Lessingia bakeri C. F. Baker 1902-10-20 1834 San Mateo Searsville. Comment
  JROH1007  Lessingia glandulifera var. glandulifera John H. Thomas 1961-6-7 9532 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1010  Lessingia glandulifera var. glandulifera John H. Thomas 1963-5-15 10091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC324175  Lessingia hololeuca LeRoy Abrams 1902-9-21 2987 San Mateo Crystal Springs Comment
  CHSC39182  Lessingia hololeuca R. N. Bowman 1984-6-29 3693 San Mateo .7 m. e of Skyline Rd. on Crystal Springs Rd. 500 Comment
  JEPS20328  Lessingia hololeuca Lewis S. Rose 1949-8-14 49165 San Mateo w of Redwood City; Emerald Lake Comment
  JROH1031  Lessingia hololeuca Rachel Hays 1972-7-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC342092  Leucanthemum vulgare John H. Thomas 1964-6-19 10424 San Mateo 0.9 miles south of Tunitas Creek near Coast Highway 60 Comment
  UCD64581  Leymus mollis Beecher Crampton 1962-6-11 6511 San Mateo Sharp Park, Mori's Point. Comment
  CAS-BOT-BC272184  Leymus triticoides Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo Lower Guadalupe Parkway north of school, San Bruno Mountains Comment
  UC306542  Ligusticum apiifolium A. D. E. Elmer June 1903 4966 San Mateo San Mateo Comment
  CAS-BOT-BC451671  Lilaea scilloides W. R. Dudley 1906-10-12 s.n. San Mateo Santa Cruz Mountain Peninsula. Pond 15 and 20. Comment
  SEINET11763376  Lilaea scilloides H. L. Mason 1922-1 s.n. San Mateo Pigeon Pt Comment
  CAS-BOT-BC130797  Lilium pardalinum Ira L. Wiggins 1929-7-4 3771 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Comment
  SEINET12182118  Limnanthes douglasii Unknown 1932-1 9103 San Mateo Roadside between Spring Valley Lake and Sky Line Drive Comment
  SJSU15432  Limnanthes douglasii subsp. ornduffii Toni Corelli 2010-4-30 625 San Mateo Agriculture field along east side of Hwy 1 south of Moss Beach and directly opposite Half Moon Bay airport. Type locality. 17 Comment
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Apr 7 2021
  CAS-BOT-BC45870  Limnanthes douglasii var. sulphurea William Anderson 1966-4-22 n.s San Mateo Canyon Road Comment
  RSA644976  Limnanthes macounii Rudolf Schmid 2000-2-24 2000 -2 San Mateo Aong E side of Hwy 1 S of Moss Beach and directly opposite Half Moon Bay airport. 10 Comment
  UC1740209  Limnanthes macounii Rudolf Schmid 2000-2-24 2000 -2 San Mateo opposite Half Moon Bay Airport (along E side of Hwy 1) 10 Comment
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Aug 5 2007
  RSA409968  Limonium californicum L. S. Rose 1942-8-11 42225 San Mateo Brisbane. 1 Comment
  JROH4057  Limosella acaulis John Hunter Thomas 1981-7-12 20709 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4063  Limosella acaulis John Hunter Thomas 1982-11-6 21212 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach, edge of Searsville Lake Comment
  CAS-BOT-BC238361  Limosella aquatica L. R. Abrams; I. L. Wiggins 1939-6-3 424 San Mateo Ano Nuevo Point Comment
  UC205782  Linanthus ambiguus C. F. Baker 1902-5-4 751 San Mateo Woodside Comment
  UCR66506  Linanthus ambiguus L. S. Rose 1948-5-16 48115 San Mateo San Francisco Bay Region, Emerald Lake, hills west of Redwood City 152 Comment
  JEPS48590  Linanthus androsaceus James G. Daly 1934-1 332 San Mateo Upper Alpine Canyon, sw San Mateo County Santa Cruz Mts., San Gregorio Watershed 30 Comment
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Mar 12 2009
  UC23690  Linanthus liniflorus J. Burtt Davy 1895-4-20 1071 San Mateo Crystal Springs Lake Comment
  UC73617  Linanthus parviflorus Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  SEINET10634275  Linum grandiflorum Robert A. Norris 1977-5-2 Norris 3570 San Mateo Several annuals occurring locally as escapes in disturbed gravelly ground by Interstate Hwy. 280, just S of Farmhill Blvd. Exit, Woodside, San Mateo Co., California. Comment
  CDA29905  Lithocarpus densiflorus D. G. Kelch 2009-6-9 9 .408 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  UC142600  Lithocarpus densiflorus C. F. Baker 1902-10-1 1759 San Mateo Summit of Coast Range Comment
  CAS-BOT-BC36068  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1900-9-9 s.n. San Mateo La Honda Comment
  CAS-BOT-BC36073  Lithocarpus densiflorus var. densiflorus George Oberlander 1949-8-20 334 San Mateo Southern boundary, Cahill Ridge Comment
  POM270415B  Lithocarpus densiflorus var. densiflorus Lyman Benson 1932-7-25 3952 San Mateo Kings Mt., above Woodside, Santa Cruz Mt range, San Francisquito Creek watershed. 305 Comment
  RSA12769  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1934-11-12 6241 San Mateo Alpine Creek Rd. from La Honda to Pescadero, about 2 mi. from La Honda, Santa Cruz Mts. 305 Comment
  CAS-BOT-BC430768  Lithophragma affine H. A. Dutton 1900-4-17 s.n. San Mateo Woodside Comment
  JROH3888  Lithophragma affine John H. Thomas 1972-4-1 16048 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC430766  Lithophragma affine Evelina Cannon 1895-3-23 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC436222  Lithophragma heterophyllum George Oberlander 1950-4-23 851 San Mateo Pilarcitos Comment
  RSA101014  Lithophragma heterophyllum G. Oberlander 1950-4-23 851 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  JROH733  Logfia gallica John H. Thomas 1971-5-30 15961 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH740  Logfia gallica John Hunter Thomas 1981-5-8 20552 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH746  Logfia gallica John Hunter Thomas 1989-5-9 24705 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC283229  Lolium multiflorum Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mile N of Pigeon Point and about 39 miles S of San Francisco Comment
  UCD66213  Lolium multiflorum Beecher Crampton 1962-6-11 6508 San Mateo Sharp Park, suburb of Pacifica, Mori's Point Road. Comment
  JROH5294  Lolium perenne W. Lennihan 1990-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 15 - path turnoff by black oak, bottom of swale. Comment
  UC38772  Lolium perenne Alice Eastwood May 1894 San Mateo South San Francisco Comment
  CAS-BOT-BC269125  Lolium perenne Sister Anna Voss 1950-6-8 s.n. San Mateo N.W. head of Ravine behind Belmond Church Comment
  RSA95544  Lolium perenne subsp. multiflorum L. S. Rose 1953-4-17 53017 San Mateo Redwood City, along Bayshore Highway 3 Comment
  SEINET13944393 Image available Lomatium dasycarpum Lewis S. Rose 1950-1 50137 San Mateo Emerald Lake region. Hills W of Redwood City. Alt ca 800 ft 244 Comment
  JEPS17134  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1914-3-22 5737 San Mateo Redwood City Comment
  JROH263  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1973-4-20 16582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH264  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1973-4-20 16582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA184857  Lomatium dasycarpum subsp. dasycarpum L. S. Rose 1965-4-22 65027 San Mateo San Bruno Mountain, south of parking lot 366 Comment
  CAS-BOT-BC240601  Lonicera hispidula Daniel Cohen 1953-6-5 110 San Mateo Los Trancos Woods Comment
  JROH1663  Lonicera hispidula John Hunter Thomas 1987-5-26 24315 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1664  Lonicera hispidula John Hunter Thomas 1989-5-9 24721 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5861  Lonicera hispidula Carol Zabel, Irene Brown 2003-7-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; thirty yards southeast of old brick well and a few yards uphill of Trail 2 extension near a large fallen oak and mature hawthorn 113 Comment
  CAS-BOT-BC240599  Lonicera hispidula W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Belmont Reservoir Comment
  CAS-BOT-BC243961  Lonicera involucrata var. ledebourii John H. Thomas 1967-5-2 12802 San Mateo About 1/4 mile up Market Street from new school in canyon, San Bruno Mountain Comment
  POM222813  Lonicera involucrata var. ledebourii S. S. Berry 1909-3-13 s.n. San Mateo Bridge over San Francisquito Creek, near Adelanto Villa. 46 Comment
  POM250690  Lonicera involucrata var. ledebourii D. D. Keck 1938-5-30 4726 San Mateo San Gregorio. 30 Comment
  SBBG112484  Lonicera involucrata var. ledebourii C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 2.3 mi E of Hwy 1 38 Comment
  SBBG53038  Lonicera involucrata var. ledebourii C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 0.9 mi E of Hwy 1 22 Comment
  CAS-BOT-BC198581  Lotus Peter Rubtzoff 1987-7-31 9821 San Mateo Best Products Company parking lot on east side of Gellert Blvd. north of Westborough Blvd. intersection, South San Francisco Comment
  JROH2042  Lotus corniculatus John Hunter Thomas 1977-6-16 18810 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Searsville Lake Comment
  UC665645  Lotus formosissimus Ethel Crum 1934-4-29 1701 San Mateo s of Pescadero 30 Comment
  SEINET3558576 Image available Lotus scoparius Lewis S. Rose 1934-6-2 34282 San Mateo Belmont. Comment
  POM18624  Lotus stipularis C. F. Baker 1902-5-10 805 San Mateo Kings Mountain. Comment
  HSC98283  Lotus unifoliolatus var. unifoliolatus L. S. Rose 1964-9-5 64071 San Mateo Emerald Lake W of Redwood City 244 Comment
  HSC23882  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-15 25 San Mateo Huddart Park Rd. bank near office Comment
  CAS-BOT-BC198275  Lupinus W. R. Dudley 1900-5-19 s.n. San Mateo 1/2 mile west of summit of La Honda Stage Road - Santa Cruz Mountain Peninsula Comment
  UC126955  Lupinus affinis J. Burtt Davy 1895-4-20 1087 San Mateo San Mateo Creek Comment
  POM77734  Lupinus affinis C. P. Smith 1921-4-9 3290 San Mateo San Mateo Canyon Comment
  SEINET10488379  Lupinus albifrons Charles Piper Smith 1948-4-23 Smith 48150 San Mateo Canada road 4 miles n of woodside Comment
  CAS-BOT-BC195812  Lupinus albifrons var. albifrons Fred Hemphill 1973-5-6 761 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  POM11053  Lupinus albifrons var. albifrons A. D. E. Elmer 1903-05 4643 San Mateo Belmont. Comment
  RSA15300  Lupinus albifrons var. albifrons Carl B. Wolf 1927-4-3 270 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  CAS-BOT-BC195786  Lupinus albifrons var. albifrons Charles Piper Smith 1946-3-26 46115 San Mateo Highway 5, San Francisco County Jail Road north Comment
  CAS-BOT-BC195788  Lupinus albifrons var. albifrons Charles Piper Smith 1946-7-15 46373 San Mateo Belmont, Vanderlaan Summit Comment
  CAS-BOT-BC195799  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48463 San Mateo Highway 5 - junction Burlingame 4 mile road, 0.6 miles North Comment
  CAS-BOT-BC195809  Lupinus albifrons var. albifrons W. R. Dudley 1894-4-21 s.n. San Mateo Ravine of San Mateo Creek 3 miles above town Comment
  CAS-BOT-BC196113  Lupinus albifrons var. collinus John H. Thomas 1955-4-6 4833 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  CAS-BOT-BC196121  Lupinus albifrons var. collinus Charles Piper Smith 1908-5-31 1437 San Mateo S. San Francisco Comment
  RSA0065263  Lupinus arboreus Daisie Huang 2006-8-7 06080702 San Mateo South of Half Moon Bay, Hwy 1. 46 Comment
  SBBG11114  Lupinus arboreus D. E. Breedlove 1961-6-18 599 San Mateo 3 mi S of rd to Half Moon Bay 365 Comment
  SD39024  Lupinus arboreus Edith A. Purer 1932-7-18 4007 San Mateo Half Moon Bay, sand dunes Comment
  UC201982  Lupinus arboreus A. D. E. Elmer May, 1903 4414 San Mateo Colma Comment
  POM349927  Lupinus arboreus var. arboreus Ynez Whilton Winblad 1934-7-4 s.n. San Mateo Taken in the sand dunes at Pescadero Beach. Comment
  RSA91250  Lupinus arboreus var. arboreus Alice Eastwood, John T. Howell 1938-6-26 6077 San Mateo Crystal Springs Lake. Comment
  JROH2115  Lupinus bicolor John H. Thomas 1975-4-19 17794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2118  Lupinus bicolor John Hunter Thomas 1984-4-2 23273 3 H San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge fence Comment
  JROH5635  Lupinus bicolor John Rawlings 2014-5-28 1247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Dennis Martin Site Marker near path to San Francisquito Creek crossing 77 Comment
  RSA31675  Lupinus bicolor A. A. Heller 1907-4-20 8451 San Mateo Near Lake Merced. Comment
  POM10642  Lupinus bicolor subsp. tridentatus C. F. Baker 1903-4-8 1921 San Mateo San Andreas Lake Comment
  CAS-BOT-BC8211  Lupinus bicolor var. pipersmithii C. P. Smith 1908-4-13 1403 San Mateo Stanford University, near Cedro Cottage Comment
  CAS-BOT-BC215064  Lupinus chamissonis Charles Piper Smith 1948-4-23 48146 San Mateo Junction of SF County Jail Road, Highway 5 Comment
  RSA18323  Lupinus densiflorus var. aureus Carl B. Wolf 1929-5-17 3712 San Mateo Alpine Road east of Skyline Blvd. Comment
  UCD108114  Lupinus latifolius A. A. Heller 1907-5-23 8562 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  POM11079  Lupinus latifolius subsp. latifolius A. D. E. Elmer 1903-06 4593 San Mateo Woodside. Comment
  JEPS23917  Lupinus latifolius var. latifolius W. R. Dudley 1895-6-7 4232 San Mateo top of ridge between Pescadero and Butano Creek; between Pescadero and Butano Creek Comment
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Feb 28 2011
  UC15897  Lupinus latifolius var. latifolius Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  SD37898  Lupinus latifolius var. latifolius Marie Cummings 1933-5-18 3664 San Mateo Los Altos Comment
  SD27830  Lupinus menziesii Carl B. Wolf 1929-5-17 3712 San Mateo Alpine Road east of Skyline Blvd. 305 Comment
  UC865131  Lupinus microcarpus var. densiflorus Lewis S. Rose 1939-5-13 39112 San Mateo w Burlingame 60 Comment
  JROH2126  Lupinus nanus John H. Thomas 1967-4-28 12723 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2137  Lupinus nanus John Hunter Thomas 1983-4-7 21334 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH5565  Lupinus nanus John Rawlings 2013-4-19 1147 San Mateo Jasper Ridge Biological Preserve, Stanford University; south edge of Rd B along the northeast base of the powerline hillock 91 Comment
  UCSB16951  Lupinus nanus Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  UCD164200  Lupinus nanus Peter Rubtzoff 1978-7-8 9225 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction. East Fork Colma Creek Canyon, W side of canyon. Comment
  SEINET11072122 Image available Lupinus nanus subsp. latifolius A. A. Heller 1907-4-20 8452 San Mateo Near Lake Merced Comment
  SEINET10486161  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-15 Dunn 2530 San Mateo Collected n of palo alto on walsh rd, 1.1 mi w of the corner of walsh rd and Altachul avenue. Comment
  SD37926  Lupinus succulentus Delzie Demaree 1932-4-9 2135 San Mateo Comment
  SEINET10936614  Lupinus succulentus var. succulentus Smith 1948-4-20 Smith 48109 San Mateo Hwy 1, san pedro point. North grade. Comment by d.b. Dunn: this is smith's Variety laynae, which i believe is depauperate due to the marine exposure. Comment
  UC865525  Lupinus variicolor Alice Eastwood and John Thomas Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  RSA162482  Lupinus variicolor E. K. Balls 1963-5-22 12067 San Mateo 2 mi. N. from turn out to San Gregorio, State Hwy. #1. 15 Comment
  SEINET10489088  Lupinus variicolor Elizabeth M. McClintock 1963-6-9 McClintock 134 San Mateo San bruno mtn. Exposed slopes below top of mtn. Comment
  SEINET10489095  Lupinus variicolor Walter Knight, Irja Knight 1965-3-28 Knight 974 San Mateo San bruno mtn. In grassy area. April brook. Only occasional plant. Comment
  CAS-BOT-BC441263  Luzula macrantha W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Peninsula: Trail north of Tripp's Store, Woodside Comment
  CAS-BOT-BC441362  Luzula subsessilis Philip Wheeler 1965-5-8 s.n. San Mateo San Bruno Mountain: Sierra Point Comment
  JEPS42812  Lysichiton americanus Lucille Roush 1928-3-11 San Mateo Butano Creek Comment
Read comments
Sep 6 2011
  JROH3366  Lysimachia arvensis John H. Thomas 1975-4-19 17791 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5568  Lysimachia arvensis John Rawlings 2013-4-19 1151 San Mateo Jasper Ridge Biological Preserve, Stanford University. South edge of Trail 11 in chaparral. 145 Comment
  JROH2943  Lythrum hyssopifolia L. R. Abrams 1914-7-1 5113 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH2944  Lythrum hyssopifolia John H. Thomas 1967-11-5 14126 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2952  Lythrum hyssopifolia John Hunter Thomas 1981-7-12 20688 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat dock Comment
  RSA0011333  Lythrum hyssopifolia John H. Thomas 1959-7-8 8020 San Mateo Pescadero Beach. Comment
  SD39672  Lythrum hyssopifolia Edith A. Purer 1933-7-27 5366 San Mateo 2.0 miles south of Pigeon Point. Comment
  RSA0011329  Lythrum hyssopifolia Carl B. Wolf 1929-6-8 3744 San Mateo East base of La Honda Grade. Comment
  CAS-BOT-BC343911  Madia elegans Cherie Wetzel 1969-7-28 993 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC343898  Madia elegans Josephine D. Randall 1907-8-8 88 San Mateo Santa Cruz Peninsula. Near Stanford University Comment
  POM190414  Madia elegans subsp. vernalis D. D. Keck 1932-6-18 1979 San Mateo Skyline Boulevard, at Langley Hill (SW of Stanford University) 610 Comment
  CAS-BOT-BC344487  Madia exigua W. R. Dudley 1906-6-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Field E. of Kings Mt. House Comment
  CAS-BOT-BC344490  Madia exigua Ned Cahill 1974-4-29 211 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC344495  Madia exigua James I. McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  JROH1041  Madia exigua John H. Thomas 1961-6-7 9531 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5660  Madia exigua John Rawlings 2014-5-23 1269 San Mateo Jasper Ridge Biological Preserve, Stanford University; up-slope from boat dock (aka Searsville Lab Landing). 104 Comment
  JROH1042  Madia exigua Herb Dengler 1963-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; S E S L site Comment
  POM362166  Madia exigua D. D. Keck 1932-5-11 1761 San Mateo Above Searsville Lake, La Honda road, east slope of Santa Cruz Mountains, San Mateo Mountains Comment
  CAS-BOT-BC343332  Madia gracilis David D. Keck 1932-5-25 1780 San Mateo Hills two miles west of Belmont Comment
  CHSC56970  Madia gracilis Steven Triano 1988-5-24 182 San Mateo Along w side of Old La Honda Road ca 0.6 mi s of Portola Road and 3.8 mi s of Woodside. 201 Comment
  JROH1070  Madia gracilis John H. Thomas 1968-5-3 14446 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1079  Madia gracilis John Hunter Thomas 1981-5-19 20602 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1090  Madia gracilis John Hunter Thomas 1987-5-19 24295 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA3891  Madia gracilis I. L. Wiggins 1929-7-4 3780 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  POM190265  Madia gracilis D. D. Keck 1932-4-29 1455 San Mateo Mills Field Airport, Bayshore Highway Comment
  POM298347  Madia madioides D. D. Keck 1932-5-11 1497 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mountains 229 Comment
  POM362194  Madia madioides Donald A. Johansen 1932-4-15 680 San Mateo Between Woodside and Kings Mountain Comment
  CAS-BOT-BC345125  Madia sativa Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC345136  Madia sativa LeRoy Abrams 1901-9-1 2227 San Mateo Menlo Park Comment
  JROH1099  Madia sativa John H. Thomas 1967-11-5 14132 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1101  Madia sativa John H. Thomas 1971-8-7 16020 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA83388  Madia sativa O. H. Kappler; 1947-5-23 San Mateo Pescadero Beach Comment
  RSA176607  Madia sativa John H. Thomas 1961-8-27 9695 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
  UC523546  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi sw Pescadero (within 100 m of ocean) Comment
  CAS-BOT-BC345117  Madia sativa David D. Keck 1932-8-11 1745 San Mateo Skyline Blvd., about 1 mi. S. of junction with Alpine Creek road, Santa Cruz Mts., Santa Clara--San Mateo Co. line 640 Comment
  CAS-BOT-BC345120  Madia sativa David D. Keck 1932-6-18 1981 San Mateo Skyline Blvd., at Langley Hill (S.W. of Stanford University) 600 Comment
  CAS-BOT-BC345138  Madia sativa George Oberlander 1950-6-3 1045 San Mateo San Francisco Watershed Reserve. On Sawyer Ridge Comment
  POM191315  Madia sativa D. D. Keck 1932-8-11 1745 San Mateo Skyline Blvd., about 1 mile south of junction with Alpine Creek road, Santa Cruz Mountains, Santa Clara - San Mateo county line 640 Comment
  UCD134343  Madia sativa Lewis S. Rose 1966-8-6 66078 San Mateo San Bruno Mountain, head of Colma Canyon. 213 Comment
  RSA175256  Maianthemum dilatatum Robert F. Thorne, Percy C. Everett 1963-6-9 32216 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain. 335 Comment
  POM169288  Maianthemum racemosum subsp. amplexicaule C. F. Baker 1903-4-8 1917 San Mateo San Andreas Lake Comment
  CAS-BOT-BC512103  Maianthemum racemosum subsp. amplexicaule Elizabeth McClintock 1965-3-28 s.n. San Mateo Trillium Gulch with Trillium chloropetalum; San Bruno Mountain Comment
  CAS-BOT-BC512110  Maianthemum racemosum subsp. amplexicaule Mrs. S. G. Suttiffe 1921-4-3 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC512115  Maianthemum racemosum subsp. amplexicaule Ned Cahill 1974-5-13 251 San Mateo Chaprral near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  RSA176415  Maianthemum stellatum John H. Thomas 1964-4-19 10326 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Area below dam. Comment
  HSC16000  Malva arborea P. A. Murphy 1965-4-16 45 San Mateo Half Moon Bay Comment
  CDA34450  Marah fabacea M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 879 San Mateo Pacifica: San Pedro Valley County Park, at Brooks Creek Trail trailhead, near visitor center's parking lot. 74 Comment
  UC635685  Marah oregana H. L. Mason 1927-4-23 3681 San Mateo between La Honda and Pescadero Creek Comment
  SJSU15423  Matricaria chamomilla Toni Corelli 2011-8-25 706 San Mateo Ano Nuevo State Park, along Hwy. 1 south of main entrance 28 Comment
  CAS-BOT-BC422686  Meconella californica H. L. Mason 1928-2-22 4162 San Mateo San Bruno Mountains Comment
  UC674717  Meconella californica Gregory Lyon 1934-3-17 41 San Mateo .75 mi e Skyline Blvd (Buri-Buri Ridge); Caroland's Tract 121 Comment
  JROH2175  Medicago polymorpha John Hunter Thomas 1988-6-2 24499 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2161  Medicago polymorpha John H. Thomas 1963-6-23 10174 & 10175 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  CAS-BOT-BC157960  Medicago polymorpha var. polymorpha Peter Rubtzoff 1978-7-8 9235 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction Comment
  CAS-BOT-BC269446  Melica californica Phillip C. Wheeler 1965-5-18 s.n. San Mateo San Bruno Mountain. Base of the mountain near Olivet Cemetery Comment
  CAS-BOT-BC269471  Melica californica Javier Penalosa 1963-3-30 2754 San Mateo San Bruno Mountain. Crest of ridge SW of Brisbane, 750 ft. NW of power lines 304 Comment
  POM319880  Melica californica Barbara Shervanick 1973-4-1 795 San Mateo San Bruno Mt. first summit on Crocker Road; Mt. Range: San Bruno Mountains; Drainage Area: San Francisco Bay. Comment
  RSA101020  Melica geyeri G. Oberlander 1950-4-23 867 San Mateo San Francisco Watershed Reserve, south boundary. Comment
  CAS-BOT-BC281409  Melica imperfecta W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. S slope of Montara Mt Comment
  RSA135746  Melica imperfecta W. R. Dudley 1900-3-17 s.n. San Mateo South slope of Montara Mt. Comment
  CAS-BOT-BC264189  Melica subulata W. R. Dudley 1900-5-19 s.n. San Mateo Summit La Honda Stage road, Santa Cruz Mountain Peninsula Comment
  JROH5311  Melica subulata John Rawlings 2005-5-15 1005 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Trail 2 from 100 to 250 yards west of the zoology cabin site 82 Comment
  JROH5312  Melica subulata John Rawlings 2005-5-15 1006 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Trail 2 from 100 to 250 yards west of the zoology cabin site 82 Comment
  RSA101010  Melilotus albus G. Oberlander 1949-10-8 404 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve. Comment
  UC2049893  Melilotus indicus H. W. Johansen 1955-4-23 80 San Mateo Crystal Springs Road, 2 miles W of San Mateo Comment
  UC634880  Mentha pulegium Herbert L. Mason Oct. 1923 785 San Mateo near summit of Jasper Ridge (toward the Hermits); near summit of Jasper Ridge toward the Hermits Comment
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Sep 19 2011
  JROH2827  Mentha suaveolens Ann Lambrecht 2007-8-15 30 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek Comment
  UCD144582  Mercurialis annua Greg Escoto 2014-2-21 s.n. San Mateo San Pedro Valley Park, a county park located at 600 Oddstad Blvd., Pacifica. Visitor Center flower beds. 55 Comment
  CDA4872  Mercurialis annua T. C. Fuller 1958-10-16 1444 -58 San Mateo Just east of Sanchez Adobe House, south side of Linda Mar Boulevard, Pedro Valley. 0 Comment
  POM177458  Mercurialis annua L. R. Abrams, I. L. Wiggins 1930-11-13 179 San Mateo 3 miles S of Rockaway Beach (Pedro Valley) Comment
  CAS-BOT-BC438141  Mesembryanthemum nodiflorum Malcom A. Nobs; S. Galen Smith 1949-8-27 1623 San Mateo East of Redwood City Comment
  CAS-BOT-BC428901  Micranthes californica Margaret A. Barry 1938-3-13 233 San Mateo On Coal Mine Ridge Comment
  JROH3906  Micranthes californica John H. Thomas 1973-3-12 16483 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176742  Micropus californicus John H. Thomas 1963-5-12 10086 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  CAS-BOT-BC348580  Micropus californicus var. californicus Margaret Barry 1937-5-8 s.n. San Mateo Coal Mine Ridge Comment
  JROH1118  Micropus californicus var. californicus John H. Thomas 1955-5-6 5004 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1126  Micropus californicus var. californicus John Hunter Thomas 1981-4-27 20507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348573  Micropus californicus var. californicus George Oberlander 1949-7-24 286 San Mateo San Francisco Watershed Reserve. Northern Cahill Ridge Comment
  HSC77531  Microseris bigelovii K. L. Chambers 1984-6-14 5141 San Mateo Pescadero Beach State Park, just S of mouth of Pescadero Creek, Hwy. 1 Comment
  RSA176780  Microseris bigelovii John H. Thomas 1963-5-20 10146 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC349015  Microseris douglasii subsp. douglasii A. D. E. Elmer 1903-5-1 4721 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC349027  Microseris douglasii subsp. douglasii Ned Cahill 1974-4-19 151 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1147  Microseris douglasii subsp. douglasii John Hunter Thomas 1986-5-6 24014 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM52854  Microseris douglasii subsp. douglasii A. D. E. Elmer 1903-05 4721 San Mateo Crystal Springs Lake Comment
  RSA184978  Microseris douglasii subsp. douglasii L. S. Rose 1966-5-2 66037 -A San Mateo Emerald Lake, west of Redwood City. 91 Comment
  CAS-BOT-BC349039  Microseris douglasii subsp. douglasii Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC349145  Microseris douglasii subsp. tenella Lewis S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  CAS-BOT-BC349140  Microseris douglasii subsp. tenella Kenton L. Chambers 1953-5-5 457 San Mateo Bayshore Hwy., 1.5 mi. n. of Dumbarton Bridge Road intersection Comment
  UC2044060  Microseris paludosa Neal Kramer 2005-5-14 CR 440 San Mateo POST Cloverdale Ranch. North end of the Mesa approx. 0.4 mi east of Lake Lucerne. Comment
  JROH4076  Mimulus aurantiacus var. aurantiacus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR75957  Mimulus aurantiacus var. aurantiacus D. M. Thompson 1992-6-3 1105 San Mateo 1.2 mi south of Hwy 35 (Skyline Blvd) along Hwy 84 (La Honda Road) 378 Comment
  UCSC007764  Mimulus aurantiacus var. aurantiacus Becky Hendricks, Chris Lay 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  POM5152  Mimulus cardinalis A. D. E. Elmer 1903-07 4941 San Mateo Lake San Andreas. Comment
  JROH4085  Mimulus guttatus Herbert Dengler 1961-4-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at highest point of J.R. Preserve Comment
  JROH4088  Mimulus guttatus Herbert Dengler 1967-5-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by CMCr -- E. side by trail that crosses creek to go to Tom's (Schultz). This is about 150' from S. corner of Biol. Preserve Comment
  UCD122861  Mimulus primuloides Clyde Elmore 1967-9-14 s.n. San Mateo The Sequoias (Lutheran retirement community), off Portola Road, Woodside. Comment
  JROH1705  Minuartia douglasii John Hunter Thomas 1982-4-28 20875 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1708  Minuartia douglasii John Hunter Thomas 1991-5-2 25011 San Mateo Jasper Ridge Biological Preserve, Stanford University; near exclosure Comment
  RSA107042  Minuartia douglasii L. S. Rose 1956-5-7 56067 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  SJSU12767  Moehringia macrophylla S. L. Jones 1986-4-6 85 San Mateo saddle betweem San Pedro Mt & Montara Mt, Pacifica 274 Comment
  CAS-BOT-BC214071  Monardella villosa Charles Piper Smith 1908-5-31 1444 San Mateo San Mateo Canyon Comment
  CAS-BOT-BC214087  Monardella villosa Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  RSA176713  Monardella villosa John H. Thomas 1963-6-23 10166 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  CAS-BOT-BC214172  Monardella villosa John H. Thomas 1971-5-2 15862 San Mateo Near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Rewood City 304 Comment
  JEPS62416  Monardella villosa subsp. franciscana Dr. L. M. Newlon 1921-1 253 San Mateo Between Salada and Mussel Rock Comment
  UC1537603  Monardella villosa subsp. franciscana Gordon H. True Jr. 1936-6-14 513 San Mateo 1 mile from Skyline Blvd. on road to Salada Beach 182 Comment
  SEINET10869827 Image available Monardella villosa subsp. franciscana Adolph D. E. Elmer Elmer 4766 San Mateo Comment
  HSC24050  Monardella villosa subsp. villosa Mary Katherine Wicksten 1971-6-24 115 San Mateo Huddart Park, by park entrance Comment
  CAS-BOT-BC327789  Monolopia gracilens Otto Holm 1930-5-9 s.n. San Mateo Berenda Farm, near Redwood City Comment
  UC729683  Montia fontana Carl B. Wolf 1929-4-29 3661 San Mateo 1 mi n of summit of La Honda (on Skyline Boulevard); Santa Cruz Mountains Comment
  CAS-BOT-BC445194  Montia parvifolia A. D. E. Elmer 1903-5-1 4577 San Mateo Iverson's Place Comment
  CAS-BOT-BC508580  Muilla maritima Lawrence Beane 1949-3-30 150 San Mateo Above Redwood City Comment
  CAS-BOT-BC508585  Muilla maritima H. A. Dutton 1900-2-8 s.n. San Mateo Woodside, Santa Cruz Peninsula Comment
  RSA159422  Myosotis latifolia John H. Thomas 1961-5-14 9370 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  RSA120743  Myosotis latifolia S. S. Tillett, I. Sternback 1956-6-24 542 San Mateo Behind (n.) Portola Camp Store, just outside Portola State Park. 396 Comment
  CAS-BOT-BC101782  Myrica californica R. Bacigalupi 1922-3-1 s.n. San Mateo near lagoon at Arroyo de los Frijoles Comment
  CAS-BOT-BC166773  Myrica californica Peter Rubtzoff 1976-10-5 8907 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC260026  Nassella lepida George Oberlander 1950-5-6 774 San Mateo San Francisco Watershed Reserve. San Andreas Valley Comment
  CAS-BOT-BC260233  Nassella pulchra A. D. E. Elmer 1903-6-1 4712 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC260241  Nassella pulchra Javier Penalosa 1963-3-9 2670 San Mateo San Bruno Mountain. SE of 1314 ft. summit 381 Comment
  RSA106988  Nassella pulchra L. S. Rose 1956-5-7 56071 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  RSA185012  Nassella pulchra L. S. Rose 1963-4-27 63000 San Mateo Skyline Blvd, open hills west of San Mateo. 91 Comment
  CDA20725  Nassella tenuissima L. Kuwahara 2006-6-1 PDR 1359399 San Mateo East side of Skyline Blvd., 3/4 mile south of State Hwy. 92. =Stipa tenuissima, 2nd confirmed natural occurrence, 3 (so far) reported. Potential pest. Comment
  CAS-BOT-BC60481  Nasturtium officinale Daniel Cohen 1953-5-9 80 San Mateo Top of sea cliff at Pescadero. Comment
  LA206599  Navarretia heterodoxa Lewis S. Rose; 1941-6-12 41269 San Mateo W of Redwood City, Emerald Lake 120.0 Comment
  JROH3197  Navarretia heterodoxa W. R. Dudley 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Point of Rocks near Searsville Lake Comment
  JROH3205  Navarretia heterodoxa (John H. Thomas) 1983-6-29 22715 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3208  Navarretia squarrosa Richard L. Garber 1971-7-13 66 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3212  Navarretia squarrosa John Hunter Thomas 1977-6-16 18778 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  LA206579  Navarretia squarrosa Ira L. Wiggins; 1929-7-4 3777 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Beach Comment
  POM65143  Navarretia squarrosa C. F. Baker 1903-6-30 3356 San Mateo Crystal Springs. Comment
  SD38213  Navarretia squarrosa Edith A. Purer 1933-7-27 5346 San Mateo Partially stabilized sand dunes near Pigeon Point Comment
  UC1124148  Navarretia squarrosa A. E. Wieslander 1935-2-3 504 San Mateo 0.5 mi se Pigeon Pt.; Santa Cruz Quad. 30 Comment
  RSA10401  Navarretia squarrosa C. B. Wolf 1927-6-15 2169 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  JROH2740  Nemophila menziesii var. menziesii John Hunter Thomas 1992-4-9 25134 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM65288  Nemophila menziesii var. menziesii C. F. Baker 1903-4-6 1895 San Mateo San Bruno hills, San Francisco. Comment
  CAS-BOT-BC219471  Nemophila parviflora Margaret A. Barry 1937-5-15 122 San Mateo On Coal Mine Ridge Comment
  SEINET3840801  Nemophila parviflora Unknown 2005-6-21 5 .368 San Mateo Northeast corner of Pilarcitos Lake, SF Water District land 250 Comment
  CAS-BOT-BC219487  Nemophila parviflora Mrs. E. C. Sutliffe 1933-5-25 s.n. San Mateo Purissima Canyon Comment
  CAS-BOT-BC140425  Oemleria cerasiformis A. D. E. Elmer 1903-3-1 4579 San Mateo Woodside Comment
  CAS-BOT-BC140436  Oemleria cerasiformis D. E. Breedlove 1974-5-13 36201 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC140438  Oemleria cerasiformis W. R. Dudley 1904-3-3 42 San Mateo Portola Valley, Santa Cruz Mts. Comment
  JROH3707  Oemleria cerasiformis John H. Thomas 1968-3-17 14184 San Mateo Jasper Ridge Biological Preserve, Stanford University. Brush slope at arm of Lake Comment
  JROH3710  Oemleria cerasiformis John H. Thomas 1977-4-28 18566 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA301273  Oenothera Andrew R. Moldenke 1975-9-6 3419 San Mateo Pigeon Point Comment
  JROH2989  Olea europaea John H. Thomas 1967-6-1 12981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5548756  Onagraceae H. S. Gentry 1931-1 85 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH3084  Orobanche bulbosa John Hunter Thomas 1977-6-16 18748 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS11663  Orobanche californica subsp. californica Dr. L. M. Newlon 1919-9-7 68 San Mateo Pillar Point, northern end of Half Moon Bay. Comment
  JEPS6047  Orobanche californica subsp. californica V. F. Hesse 1954-7-30 1346 San Mateo Near Pebble Beach. Comment
  CAS-BOT-BC499692  Orobanche californica subsp. californica Dr. Henry T. Taabor 1953-8-30 s.n. San Mateo Pigeon Pt. Comment
  RSA0066487  Orobanche californica subsp. californica E. B. Copeland 1903-6-5 3330 San Mateo Montara Point. Comment
  JROH5801  Orobanche fasciculata John Rawlings 2017-6-12 2102 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 12 on bank just west of first footbridge. 108 Comment
  CAS-BOT-BC502962  Orobanche vallicola James McMurphy 1906-8-6 s.n. San Mateo Searsville Lake Comment
  POM49738  Orthocarpus densiflorus L. R. Abrams 1902-5-11 2455 San Mateo Crystal Lake. Comment
  RSA107077  Orthocarpus densiflorus L. S. Rose 1956-5-7 56064 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  RSA14128  Orthocarpus lithospermoides Elmer I. Applegate 1895-5-11 392 San Mateo Near Searsville. Comment
  POM126843  Orthocarpus pusillus R. L. Pendleton 1907-4-20 590 San Mateo Lake Merced. 46 Comment
  RSA119325  Osmorhiza berteroi S. S. Tillett, I. Sternback 1956-6-24 540 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  CHSC1970  Osmorhiza chilensis A. Goekler 1929-5-11 San Mateo Moss Beach. Comment
  POM133304  Osmorhiza purpurea A. D. E. Elmer 1900-05 1982 San Mateo La Honda Comment
  JEPS79567  Oxalis oregana Edward Lee with A. Carter, E. Crum, and C. Belshaw 1936-1-26 1720 San Mateo e side Cahill Ridge (Kings Mt. Rd (2.6 mi out of woodside)) Comment
  POM139481  Oxalis oregana C. F. Baker 1902-3-18 325 San Mateo King's Mountain Comment
  POM353454  Oxalis oregana A. C. Life 1924-2-22 s.n. San Mateo Kings Mountain, Redwood Park. Comment
  UC2049874  Oxalis oregana H. W. Johansen 1955-4-3 11 San Mateo Jones Gulch, 5 miles S of La Honda Comment
  UC571122  Oxalis oregana Lucile Roush March 1928 San Mateo Butano creek Santa Cruz Mtns Comment
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Sep 6 2011
  JROH3092  Oxalis oregana M. N. Paulson 1915-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM278936  Oxalis oregana Lyman Benson 1931-2-27 2616 San Mateo Woodside, Santa Cruz mountains, San Francisquito Creek watershed, Kings Mt Road 183 Comment
  UCD18546  Oxalis oregana Roman Gankin 1950-7-9 15 San Mateo west side of the Peninsula Coast Range, 4 miles from La Honda, off San Mateo Memorial Park Rd, redwood belt. 30 Comment
  UCSB11440  Oxalis pes-caprae Olson, Jim 1962-4-17 San Mateo 1 mile east of Halfmoon Bay on Halfmoon Bay to San Mateo Road 15 Comment
  CAS-BOT-BC318251  Packera breweri W. R. Dudley 1893-5-3 s.n. San Mateo Foothills near Stanford University. Comment
  JROH5339  Panicum capillare Ann Lambrecht 2006-8-23 29 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek near Dennis Martin marker. 71 Comment
  JROH5340  Panicum miliaceum subsp. miliaceum Ann Lambrecht 2000-9-11 1 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek. Comment
  CAS-BOT-BC253972  Parapholis incurva V. F. Hesse 1964-5-26 3210 San Mateo Near (S of) Pigeon Point 15 Comment
  CAS-BOT-BC259639  Paspalum dilatatum Walter & Irja Knight; Peter Rubtzoff 1987-10-16 6071 San Mateo San Bruno Mountain, ca. 0.25 mile from Randolph Avenue on Old Bayshore Highway, South San Francisco 4 Comment
  JROH1403  Pectocarya pusilla John H. Thomas 1981-4-27 20499 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4096  Pedicularis densiflora James Newman 1951-4-21 44 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake, above lake 91 Comment
  SD27762  Pedicularis densiflora Carl B. Wolf 1927-3-2 235 San Mateo Searsville Lake 121 Comment
  UC202754  Pedicularis densiflora A. D. E. Elmer 1903-5-1 4497 San Mateo Woodside Comment
  JROH4120  Pedicularis densiflora Brenda Butner and Toni Corelli 1990-3-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Escobar gate area---oak woodland on west side of road Comment
  LA209451  Pedicularis densiflora R. L. A.; 1902-3-16 2278 San Mateo Woodside 60.0 Comment
  RSA130343  Pedicularis densiflora H. A. Lewis 1908-4-30 s.n. San Mateo Los Trancos. Comment
  RSA401968B  Pedicularis densiflora A. C. Life 1924-2-22 14599 San Mateo Kings Mt. Redwood Park. Huckleberry trail. Comment
  CAS-BOT-BC266667  Pedicularis dudleyi Rimo Bacigalupi 1923-1-1 s.n. San Mateo Peters Creek near Pescadero Creek Comment
  CAS-BOT-BC7097  Pedicularis dudleyi Adolph Daniel Edward Elmer 1903-6-1 4289 San Mateo Pescadero Creek - Iverson's Place Comment
  JEPS82090 Image available Pedicularis dudleyi Rimo Bacigalupi with J. H. Thomas and L. Heckard 1961-5-23 7712 San Mateo 1/3 mi n of its confulence with Pescadero Creek (e side of Peters Creek); Peters Creek 134 Comment
  LA96005  Pelargonium capitatum Jane Turner; Francis M. Ball 1962-7-7 1086 San Mateo Highway 1, ca. 10 mi. N of Sana Cruz Co. line Comment
  CAS-BOT-BC207023  Pelargonium vitifolium J. H. Thomas 1949-6-4 589 San Mateo Along coast, 1.4 miles S of road leading to Pescadero. Comment
  CDA4422  Pelargonium vitifolium T. C. Fuller 1960-10-5 5198 San Mateo Along old highway right-of-way, Highway 1, 2.5 miles south of Pebble Beach State Park. 0 Comment
  JROH5818  Pennisetum setaceum John Rawlings 2016-10-8 1949 San Mateo Sand Hill Rd. near the SLAC fence-line opposite the entrance to the Horse Park at Woodside, San Mateo Co. 118 Comment
  RSA137339  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  JROH1161  Pentachaeta alsinoides John Hunter Thomas 1989-4-20 24639 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC77012  Pentagramma triangularis subsp. triangularis David D. Keck 1932-2-12 1365 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake. 304 Comment
  JROH115  Pentagramma triangularis subsp. triangularis John Hunter Thomas 1981-4-23 20487 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH312  Perideridia kelloggii John H. Thomas 1975-7-31 17981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1389980  Perideridia kelloggii T. I. Chuang, F. M. Chuang, and S. Banwar 1965-8-3 6012 San Mateo 4.3 mi s Half Moon Bay (on Hwy 1) Comment
  CAS-BOT-BC413608  Persicaria amphibia A. D. E. Elmer 1903-7-1 4650 San Mateo San Pedro Comment
  CAS-BOT-BC413606  Persicaria amphibia Josephine D. Randall 1907-7-23 287 San Mateo Santa Cruz Peninsula. Crystal Springs Lake Comment
  CAS-BOT-BC419155  Persicaria maculosa Ira L. Wiggins 1980-8-29 22262 San Mateo Bed of San Francisquito Creek ca 75 m upstream from Pope Street bridge Comment
  JROH3283  Persicaria punctata John H. Thomas 1976-10-16 18414 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fireplace ruins downstream. Comment
  JROH3284  Persicaria punctata John Hunter Thomas 1981-7-12 20695 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC419391  Persicaria punctata George Oberlander 1949-8-20 387 San Mateo San Francisco Watershed Reserve. San Andreas Lake Comment
  JEPS37161  Petasites frigidus var. palmatus James G. Daly 232 San Mateo San Gregorio watershed Santa Cruz Mts. Comment
  RSA116727  Petasites frigidus var. palmatus M. N. paulson 1915-04 s.n. San Mateo La Honda Grade Comment
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Sep 11 2011
  RSA10999  Petasites palmatus C. B. Wolf 1928-3-14 1536 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  SBBG51579  Phacelia californica J. Doty 1969-3-26 596 San Mateo 100 yds E of the jct of St hwys 35 and 92 Comment
  POM65454  Phacelia distans A. D. E. Elmer 1903-04 4862 San Mateo San Pedro. Comment
  RSA149147  Phacelia distans John H. Thomas 1961-5-13 9334 San Mateo Franklin Point. Comment
  UC131512  Phacelia distans C. F. Baker 1902-4-4 442 San Mateo Crystal Springs Lake Comment
  JEPS2344  Phacelia divaricata W. L. Jepson 1914-3-22 5733 San Mateo Redwood City Comment
  CDA34191  Phacelia malvifolia D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .172 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
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Sep 15 2021
  RSA101024  Phacelia malvifolia G. Oberlander 1950-4-2 579 San Mateo Near San Andreas Lake, San Francisco Watershed Reserve Comment
  JROH2765  Phacelia rattanii D. E. Breedlove 1971-5-11 19332 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  SJSU5407  Phaedranthus buccinatorius A. J. Cortopassi 1959-5-9 San Mateo 2319 Hillsdale Dr, Burlingame Comment
  CAS-BOT-BC258934  Phalaris aquatica Cecilia Murray 1963-7-23 s.n. San Mateo Portola Valley Comment
  RSA118050  Phalaris aquatica J. T. Howell 1954-7-8 30009 San Mateo Skyline Blvd. above (west of) San Bruno Comment
  SD227705  Phalaris aquatica G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3743 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek 106 Comment
  CAS-BOT-BC259009  Phalaris californica W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Crystal Springs Comment
  CAS-BOT-BC259012  Phalaris californica Ned Cahill 1974-5-18 296 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UCD89172  Phalaris minor A. D. E. Elmer 1903-6-1 4427 San Mateo Crystal Springs Lake. Comment
  JROH5383  Phalaris paradoxa John Rawlings 2011-6-21 1074 San Mateo Jasper Ridge Biological Preserve, Stanford University; 80m west of Escobar Gate downhill from Road F on north side of ridge near the serpentine/sandstone contact 153 Comment
  RSA17943  Phalaris paradoxa C. B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo San Gregorio Comment
  RSA17944  Phalaris paradoxa C. B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo San Gregorio Comment
  JROH5384  Phleum pratense John Rawlings 2009-6-3 1024 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek 82 Comment
  JROH2768  Pholistoma auritum var. auritum John Hunter Thomas 1981-5-5 20540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC222503  Pholistoma auritum var. auritum Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. Gladys Canyon in Brisbane Comment
  JROH4288  Phoradendron serotinum subsp. tomentosum John H. Thomas 1959-8-22 8080 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  CAS-BOT-BC142176  Physocarpus capitatus Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City, before Hesler Farm entrance. Comment
  CAS-BOT-BC142178  Physocarpus capitatus A. D. E. Elmer 1903-7-1 4804 San Mateo Portola Comment
  CAS-BOT-BC142184  Physocarpus capitatus W. R. Dudley 1894-4-21 s.n. San Mateo San Mateo Creek - Santa Cruz Peninsula Comment
  CAS-BOT-BC142225  Physocarpus capitatus George Oberlander 1950-7-15 1041 San Mateo San Andreas Valley - San Francisco Watershed Reserve Comment
  RSA681424  Physocarpus capitatus Annuschka Deb 1989-6-13 218 San Mateo Woodside, Yerba Buena Nursery Demonstration Garden. Comment
  UC860427  Physocarpus capitatus Lewis S. Rose 1939-5-5 39093 San Mateo San Mateo Canyon 45 Comment
  SEINET3819247 Image available Physocarpus capitatus Lewis S. Rose 1939-5-5 39093 San Mateo San Mateo Canyon. 46 Comment
  UCSC007746  Pinus radiata Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC136529  Piperia candida John H. Thomas 1961-6-20 9551 San Mateo Field redacted by CAS, contact the data manager for more information 152 Comment
  JEPS82405  Piperia elegans Roger Raiche 1983-8-20 30644 San Mateo Shelter Cove, above old railroad grade San Pedro Point Area 12 Comment
  CAS-BOT-BC137315  Piperia elegans L. R. Abrams 1909-8-2 4274 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JROH5802  Piperia transversa John Rawlings, Ann Lambrecht, Diane Renshaw 2016-7-12 1894 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E through chaparral 135 Comment
  CAS-BOT-BC254388  Piptatherum miliaceum Ira L. Wiggins 1980-8-29 22256 San Mateo Lower bank of San Francisquito Creek, ca. 150 m upstream from Pope Street bridge, Menlo Park Comment
  JROH181  Pistacia atlantica John Hunter Thomas 1992-4-23 25163 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0059036  Pityrogramma triangularis var. triangularis Lewis S. Rose 1938-2-23 38082 San Mateo Woodside. 152 Comment
  CAS-BOT-BC228121  Plagiobothrys chorisianus David D. Keck 1938-5-30 4728 San Mateo Pescadero, on bluffs overlooking ocean Comment
  CAS-BOT-BC228132  Plagiobothrys chorisianus Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountains. About half way down Devil's Arroyo Comment
  RSA6421  Plagiobothrys chorisianus D. D. Keck 1932-4-18 1435 San Mateo Burlingame, on the shore of San Francisco Bay. 2 Comment
  CAS-BOT-BC228166  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-17 s.n. San Mateo Near Pebble Beach, Pescadero Comment
  CAS-BOT-BC228168  Plagiobothrys chorisianus var. chorisianus John H. Thomas 1961-5-7 9258 San Mateo San Bruno Mountain in N part of county 396 Comment
  RSA128818  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Lake Comment
  SD73208  Plagiobothrys chorisianus var. chorisianus Darley F. Howe 1969-6-10 4640 San Mateo 18.5 miles north of San Mateo Santa Cruz County line. Comment
  JROH1416  Plagiobothrys chorisianus var. hickmanii John Hunter Thomas 1982-4-30 20882 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SDSU5437  Plagiobothrys chorisianus var. hickmanii D. F. Howe 1967-4-13 4342 San Mateo Pebble Beach. Comment
  JROH1425  Plagiobothrys nothofulvus John H. Thomas 1970-4-4 15542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1428  Plagiobothrys nothofulvus John H. Thomas 1975-4-18 17785 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC39820  Plantago Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  SJSU2269  Plantago coronopus C. W. Sharsmith 1947-3-23 6746 San Mateo Pescadero Beach near Pescadero Point Comment
  CHSC59771  Plantago erecta Jan M. Karaz 1979-5-22 29 San Mateo 500 ft west of Canada College Campus Drive, 1.8 mi west of Hwy 280. 5 Comment
  JROH3117  Plantago erecta John Hunter Thomas 1981-4-23 20483 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM283963  Plantago erecta Arthur L. Cohen 1935-4-21 623 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  UCD124478  Plantago erecta Lewis S. Rose 1965-5-3 65056 San Mateo San Bruno Mountain, north end. 182 Comment
  UC1192027  Plantago major Malcolm A. Nobs and S. Galen Smith 1949-8-26 1584 San Mateo about 1 mi s Half Moon Bay Comment
  CAS-BOT-BC157692  Plantago major Peter Rubtzoff; Roman Gankin 1975-9-11 8371 San Mateo San Bruno Mountain. Pond NW of and across old Guadalupe Road from Saddle area (which is located on N side of Guadalupe Canyon Parkway, W of Radio Road junction Comment
  RSA788373  Plantago major Peter Rubtzoff, Roman Gankin 1975-9-11 8371 San Mateo Pond NW and across old Guadalupe Road from 'Saddle' area (which is located on north side of Guadalupe Canyon Parkway, west of Radio Road junction). Comment
  RSA18371  Plantago maritima Carl B. Wolf 1927-6-29 537 San Mateo Along coast south of Pebble Beach near Pescadero. Comment
  JEPS15530  Plantago maritima var. californica G. Thomas Robbins 1956-8-18 3736 San Mateo near mouth of Pomponio Creek Comment
  JEPS7154  Plantago maritima var. californica James G. Daly 1934-1 478 San Mateo mouth of San Gregorio Creek San Gregorio Creek Comment
  CAS-BOT-BC136639  Platanthera Donald A. Johansen 1932-5-21 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  SEINET3854600 Image available Platystemon californicus Lewis S. Rose 1933-5-17 33170 San Mateo Redwood City. Comment
  CAS-BOT-BC92023  Platystemon californicus Ynez Whilton Winblad 1941-4-13 s.n. San Mateo 1 mile north of Crystal Springs Reservoir. Comment
  UC131908  Plectritis brachystemon Alice Eastwood 1901-5-19 San Mateo Blenheim Comment
  JROH5878  Plectritis congesta subsp. brachystemon Diane Renshaw 2014-4-30 1222 San Mateo Jasper Ridge Biological Preserve, Stanford University; by fallen tree between Alan's Mountain (utility pole mound) and San Francisquito Creek 89 Comment
  CAS-BOT-BC458187  Pleuricospora fimbriolata W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Peninsula: between Pescadero Creek and Butano, back of Iversons Comment
  POM198992  Pleuropogon californicus var. californicus A. D. E. Elmer 1903-06 4848 San Mateo Millbrae Comment
  JEPS71266  Poa annua unknown 1919-7-22 211 San Mateo Ano Nuevo Comment
  CAS-BOT-BC246710  Poa howellii George Oberlander 1950-4-23 850 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  JROH5409  Poa howellii John H. Thomas 1964-4-19 10329 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam in among redwoods near creek. Comment
  JROH5417  Poa pratensis subsp. pratensis John Hunter Thomas 1982-6-7 21028 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA135725  Poa secunda W. R. Dudley 1900-3-18 s.n. San Mateo San Andreas Lake Comment
  CAS-BOT-BC243112  Poa secunda subsp. secunda Ned Cahill 1974-4-29 179 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  CAS-BOT-BC244249  Poa unilateralis David D. Keck 1932-5-6 1477 San Mateo Hillsides above Millbrae Highlands Comment
  JROH2855  Pogogyne serpylloides John H. Thomas 1966-4-29 11588 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2858  Pogogyne serpylloides John H. Thomas 1973-6-10 16827 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0022142  Pogogyne serpylloides John H. Thomas 1961-5-7 9270 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  JROH5584  Polygala californica John Rawlings 2013-5-28 1190 San Mateo Jasper Ridge Biological Preserve, Stanford University; in the vicinity of an abandoned camper shell near a small drainage on north side of main ridge 100 Comment
  UC1101136  Polygonum amphibium var. stipulaceum Verne Grant and Herbert L. Mason 1946-8-28 13082 San Mateo San Francisco county prison; sag pond at entrance Comment
  CAS-BOT-BC414234  Polygonum aviculare subsp. depressum Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  UCD164344  Polygonum aviculare subsp. depressum Peter Rubtzoff 1977-4-16 8953 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC419847  Polygonum patulum L. R. Abrams 1901-9-1 2213 San Mateo Cooley's Landing near Palo Alto Comment
  RSA88326  Polygonum patulum J. T. Howell 1953-6-3 29057 San Mateo Bayshore Hwy, Redwood City. Comment
  CAS-BOT-BC420149  Polygonum ramosissimum subsp. ramosissimum Le Roy Abrams 1901-9-1 2213 San Mateo Cooley's Landing Comment
  CAS-BOT-BC76904  Polypodium californicum Roxana S. Ferris 1921-4-7 2133 San Mateo Santa Cruz Mountain Peninsula - San Bruno Mt. 213 Comment
  CAS-BOT-BC76915  Polypodium californicum J. H. Thomas 1949-3-29 197 San Mateo King's Mountain. Comment
  JROH5939  Polypodium californicum John Rawlings 2017-2-22 1959 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trailside rock outcrop, low end of Buckeye Alley, Trail 9 117 Comment
  SJSU2297  Polypodium californicum C. W. Sharsmith 1950-4-16 6626 San Mateo seaward rim of coastal bluff near Pescadero Point near Pescadero Comment
  CAS-BOT-BC76911  Polypodium californicum W. R. Dudley 1896-2-16 s.n. San Mateo Santa Cruz Mountain Peninsula - Devil's Canyon, Black Mountain Comment
  JROH82  Polypodium californicum John H. Thomas 1977-4-2 18510 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC76806  Polypodium glycyrrhiza W. R. Dudley 1898-3-5 s.n. San Mateo Santa Cruz Peninsula - King's Mountain Comment
  CAS-BOT-BC72111  Polypodium scouleri L. R. Abrams 1926-5-26 11217 San Mateo San Bruno Hills near Daly City Comment
  UC440196  Polypodium scouleri R. L. Pendleton 1907-4-20 623 San Mateo Colma 152 Comment
  JROH5677  Polypogon interruptus John Rawlings 2014-5-28 1249 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Up-stream edge of low flow crossing of San Francisquito Creek. 81 Comment
  CAS-BOT-BC237344  Polypogon monspeliensis Ned Cahill 1974-5-18 289 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  CAS-BOT-BC237353  Polypogon monspeliensis J. H. Thomas 1963-7-19 10184 San Mateo Ano Nuevo Point Comment
  JROH5445  Polypogon monspeliensis John H. Thomas 1974-10-29 17644 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH5448  Polypogon monspeliensis John Hunter Thomas 1977-6-16 18785 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry lake bed Comment
  JROH5456  Polypogon monspeliensis John Hunter Thomas 1987-5-5 24242 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC72221  Polystichum dudleyi W. R. Dudley 1898-3-5 s.n. San Mateo King's Mountain Comment
  JROH47  Polystichum dudleyi Lawrence J. Winship 1974-11-16 10 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH51  Polystichum dudleyi Ann Lambrecht 2005-10-26 22 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 2 on creek bank 60 m beyond first drainage past intersection of Trails 1 & 5. Comment
  UC718901  Polystichum dudleyi W. R. Dudley 1905-6-19 San Mateo cliffs near Camp on Pescadero Creek; Santa Cruz Peninsula, Santa Cruz Mts. Comment
  CAS-BOT-BC76608  Polystichum munitum J. H. Thomas 1949-3-29 198 San Mateo King's Mountain Comment
  CAS-BOT-BC76602  Polystichum munitum W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Peninsula - El Corte de Madera, west side Santa Cruz Range. Comment
  RSA11001  Polystichum munitum C. B. Wolf 1928-3-14 1538 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  RSA157754  Polystichum munitum I. L. Wiggins 1925-5-24 1731 San Mateo Along county road from Pescadero to Pebble Beach along rich swamp land just before coming to the artichoke lands of the American Produce Co. Comment
  CAS-BOT-BC105566  Populus trichocarpa W. R. Dudley 1894-3-26 s.n. San Mateo Creek by Pascadero bridge, Pescadero - Santa Cruz Peninsula Comment
  RSA195521  Populus trichocarpa John H. Thomas 1966-4-13 11557 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH3359  Portulaca oleracea John H. Thomas 1978-9-24 19341 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5511  Potamogeton crispus Ann Lambrecht 2004-6-2 9 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  CAS-BOT-BC453832  Potamogeton nodosus V. F. Hesse 1961-8-24 3020 San Mateo About 4 miles south of Pescadero 60 Comment
  UC1191228  Potamogeton pectinatus Herbert L. Mason, Verne Grant 1946-8-28 13091 San Mateo about 3 mi s of Daly City Road (near Highway 5) Comment
  CAS-BOT-BC454007  Potamogeton pectinatus W. R. Dudley 1903-7-21 s.n. San Mateo Near Hallidie's, Portola Comment
  JROH4667  Prosartes hookeri W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC516357  Prosartes hookeri Ira L. Wiggins 1928-4-14 2912 San Mateo Alpine Creek Road Comment
  SJSU9997  Prosartes smithii R. L. Roney 1974-4-27 San Mateo N side of La Honda Creek 457 Comment
  POM139632  Prunus A. D. E. Elmer 1903-07 4773 San Mateo Pilarcitos Stone Dam. Comment
  CAS-BOT-BC158170  Prunus emarginata Walter Knight; Irja Knight; James Roof 1965-5-15 1198 San Mateo Bitter Cherry Ravine Comment
  CAS-BOT-BC158175  Prunus emarginata L. R. Abrams 1916-4-22 5575 San Mateo Pilarcitos [Canon] Canyon Comment
  JROH3742  Prunus emarginata A. D. E. Elmer 1903-5-1 4523 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  UC136492  Prunus emarginata C. F. Baker 1902-5-1 691 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC154499  Prunus ilicifolia Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC154507  Prunus ilicifolia Brandegee s.n. San Mateo Menlo Park Comment
  SEINET11917542  Prunus subcordata W. R. Dudley 1904-4-7 17 San Mateo Los Fracos Creek, Santa Cruz Mts Comment
  HSC5682  Pseudognaphalium beneolens L. S. Rose 1966-8-15 66082 San Mateo Emerald Lake, W of Redwood City 91 Comment
  CAS-BOT-BC356473  Pseudognaphalium beneolens Roxana S. Ferris 1920-9-3 2052 San Mateo Santa Cruz Mountain Peninsula. Near upper Mud Lake, Coal Mine ridge Comment
  JROH772  Pseudognaphalium beneolens John H. Thomas 1964-11-29 10537 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville dam Comment
  CAS-BOT-BC356859  Pseudognaphalium californicum John H. Thomas 1961-5-7 9303 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH753  Pseudognaphalium californicum John H. Thomas 1958-5-10 7157 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH754  Pseudognaphalium californicum John H. Thomas 1961-6-7 9534 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC357115  Pseudognaphalium luteoalbum John H. Thomas 1963-5-8 10064 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC357127  Pseudognaphalium luteoalbum Philip Wheeler 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC344872  Pseudognaphalium ramosissimum Peter Rubtzoff 1978-9-16 9272 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC357509  Pseudognaphalium ramosissimum John H. Thomas 1976-10-7 18391 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south of Pescadero 30 Comment
  SEINET3145218  Pseudognaphalium ramosissimum L. S. Rose 1935-8-13 35568 San Mateo Salada 30 Comment
  CAS-BOT-BC357512  Pseudognaphalium ramosissimum James McMurphy 1905-10-15 s.n. San Mateo Goat Ranch near Stanford University Comment
  CAS-BOT-BC361562  Pseudognaphalium stramineum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC361573  Pseudognaphalium stramineum Saichi Kawahara 1968-6-15 437 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  CAS-BOT-BC85916  Pseudotsuga menziesii A. D. E. Elmer 1903-4-1 4562 San Mateo King's Mt. Comment
  SEINET11737773  Pseudotsuga menziesii Unknown 1929-1 7286 San Mateo Kings Mountain Comment
  JROH130  Pseudotsuga menziesii var. menziesii John Hunter Thomas 1986-4-22 23971 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1175  Psilocarphus tenellus H. A. Borthwick 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1178  Psilocarphus tenellus John H. Thomas 1961-4-29 9178 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC362016  Psilocarphus tenellus W. R. Dudley 1899-4-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Field near San Francisquito Creek, Stanford University Comment
  CAS-BOT-BC362018  Psilocarphus tenellus George Oberlander No date on label 918 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC362029  Psilocarphus tenellus Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Ridge Road west of power lines Comment
  JROH3754  Pyracantha fortuneana J. H. Thomas 1960-6-8 8773 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near entrance to Searsville Lake Comment
  CAS-BOT-BC460835  Pyrola aphylla A. D. E. Elmer 1903-6-1 4297 San Mateo Pescadero Comment
  JROH2534  Quercus X morehus W. K. Fisher 1898-3-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
Read comments
Oct 31 2016
  UC762364  Quercus X morehus R. F. Hoover 1941-2-12 4764 San Mateo nw of Saratoga Summit Comment
  UCD47329  Quercus X subconvexa Lewis S. Rose 1964-9-5 64069 San Mateo (Q. durata Jepson X Q. garryana Dougl.). Emerald Lake, W. of Redwood City. 243 Comment
  JROH2457  Quercus agrifolia var. agrifolia W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2463  Quercus agrifolia var. agrifolia John H. Thomas 1974-6-30 17461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2464  Quercus agrifolia var. agrifolia John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC85952  Quercus douglasii Ned Cahill 1974-5-30 327 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwwod City. Comment
  JROH2476  Quercus douglasii John Hunter Thomas 1988-4-6 24374 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside below dam. Comment
  UCD45969  Quercus durata var. durata Lewis S. Rose 1964-9-5 64068 San Mateo Emerald Lake, W. of Redwood City. Alt. ca. 800 ft. 243 Comment
  CAS-BOT-BC105394  Quercus kelloggii E. A. McGregor 1908-3-30 s.n. San Mateo Kings Mt. 365 Comment
  SEINET12034577  Quercus kelloggii Unknown 1832-1 8931 San Mateo La Honda Road to Sky Line Drive Comment
  CAS-BOT-BC62890  Quercus lobata W. R. Dudley 1893-11-19 s.n. San Mateo By Alpine road up Black Mt. Comment
  CDA22092  Quercus parvula var. shrevei J. M. Tucker 1994-9-9 s.n. San Mateo Huddart Park on northeast facing slope near Miwok Shelter. Comment
  RSA81914  Quercus parvula var. shrevei E. K. Balls, P. C. Everett 1953-10-16 18681 San Mateo Hwy 5, 30.8 miles southeast of San Francisco-San Mateo county line. 762 Comment
  CAS-BOT-BC134789  Quercus wislizeni Josephine D. Randall 1907-4-27 s.n. San Mateo Santa Cruz Peninsula. Kings Mt. Road Comment
  NY201784  Quercus wislizeni J. B. Walker 1994-8-15 909 San Mateo Skyline Rd, mile marker 13.84, N of Sky Londa 100 Comment
  UC1084409  Quercus wislizeni G. Thomas Robbins 1937-4-11 112 San Mateo Wooded hillside above Redwood City Comment
  JROH2529  Quercus wislizeni var. frutescens Toni Corelli 2007-1-31 337 b San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 9 140 Comment
  RSA187310  Ranunculus E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC379081  Ranunculus aquatilis var. diffusus Roxana Ferris 1918-3-31 756 San Mateo at edge of Helvetio (Mud) Lake; Coal Mine Ridge Comment
  RSA15338  Ranunculus californicus Carl B. Wolf 1927-2-5 149 San Mateo Pilarcitos Lake Comment
  RSA399414  Ranunculus californicus L. S. Rose 1935-4-16 35097 San Mateo Emerald Lake, W of Redwood City Comment
  UC135552  Ranunculus californicus C. F. Baker 1902-4-12 504 San Mateo San Gregorio; hills along coast Comment
  SD80176  Ranunculus californicus R. S. Woglum 1935-5-25 1156 San Mateo San Francisco area, Skyline Drive Comment
  UCR136711  Ranunculus californicus var. californicus E. W. Rust 1907-3-28 79 San Mateo Santa Cruz Mountains, Alta Vista 183 Comment
  CAS-BOT-BC378534  Ranunculus californicus var. californicus J. H. Thomas 1949-3-29 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC378542  Ranunculus californicus var. californicus Ira L. Wiggins 1928-4-14 2903 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC83420  Ranunculus lobbii W. R. Dudley 1904-4-10 s.n. San Mateo Near junction of Page Mill Road and Skyline Boulevard. Comment
  CDA3486  Ranunculus trilobus P. Greer 2002-4-17 s.n. San Mateo Highway 101, in Half Moon Bay. 0 Comment
  POM283043  Rhamnus californica Lyman Benson 1928-12-4 770 San Mateo Lake Searsville, Stanford, Santa Cruz, San Francisco Bay 152 Comment
  SEINET12209519  Rhamnus californica Unknown 1933-1 s.n. San Mateo On hillside between Skyline and Half Moon Bay Comment
  RSA20326  Rhamnus crocea Carl B. Wolf 1929-5-17 3717 San Mateo 1 mile W of Skyline Drive on Alpine Road. Comment
  SEINET12210178  Rhamnus crocea J. I. McMurphy 1906-1 55 San Mateo Los Trancos Creek, Santa Cruz 183 Comment
  RSA10390  Rhamnus tomentella subsp. tomentella H. A. Barker 1926-5-15 603 San Mateo King Mt. Comment
  POM132207  Rhododendron occidentale var. occidentale A. D. E. Elmer 1903-06 4298 San Mateo Butano Creek Comment
  RSA476444  Ribes californicum L. H. Jones 1909-3-5 s.n. San Mateo 600 feet on the west side of Jasper Ridge, Stanford University. Comment
Read comments
Sep 19 2011
  CAS-BOT-BC92998  Ribes californicum var. californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont. Comment
  SEINET6205023  Ribes divaricatum L. S. Rose 1965-1 65008 San Mateo Searsville Lake. Comment
  CAS-BOT-BC173083  Ribes divaricatum var. pubiflorum Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Colma Canyon, south ridge Comment
  CAS-BOT-BC173465  Ribes malvaceum Marian L. Campbell 1920-5-2 s.n. San Mateo Los Altos Comment
  CAS-BOT-BC173479  Ribes malvaceum Margaret A. Barry 1938-1-23 23 San Mateo North slope on Coal Mine Ridge Comment
  LA205482  Ribes malvaceum Lillian Lockwood; 1908-3-9 sn San Mateo Coal Mine Ridge Comment
  SEINET3558789 Image available Ribes malvaceum Lewis S. Rose 1933-3-2 33006 San Mateo Belmont. Comment
  RSA0021676  Ribes malvaceum Lyman Benson 1931-1-25 2576 San Mateo Continuation of Page Mill Road toward La Honda. Stanford University, Santa Cruz Mountain Range. 244 Comment
  JROH2664  Ribes malvaceum var. malvaceum John H. Thomas 1968-2-11 14146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC212811  Ribes menziesii David D. Keck 1932-3-6 1397 San Mateo Near La Honda, Santa Cruz Mts. 200 Comment
  CAS-BOT-BC212834  Ribes menziesii W. R. Dudley 1904-3-3 s.n. San Mateo Canada del Corte de Madera, Santa Cruz Mts. Comment
  CAS-BOT-BC212842  Ribes menziesii J. H. Thomas 1949-3-31 205 San Mateo King's Mountain Comment
  RSA0021754  Ribes menziesii var. leptosmum A. D. E. Elmer 1903-04 4496 San Mateo Portola. Comment
  CAS-BOT-BC144606  Ribes sanguineum var. glutinosum Elmer I. Applegate 1895-3-3 198 San Mateo San Gregorio Creek below La Honda Comment
  CAS-BOT-BC144608  Ribes sanguineum var. glutinosum David D. Keck 1932-2-14 1370 San Mateo Near La Honda, Santa Cruz Mountains, (3 miles north) 365 Comment
  JROH2685  Ribes sanguineum var. glutinosum John Hunter Thomas 1985-4-25 23556 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  UCSB17072  Ribes sanguineum var. glutinosum 1963-4-9 San Mateo Jasper Ridge; 3 miles southwest of Stanford Campus; between Santa Clara Valley and main front of Santa Cruz Mountains 137 Comment
  RSA0019114  Ribes sanguineum var. glutinosum A. D. E. Elmer 1903-03 4470 San Mateo Portola Comment
  SEINET12220349  Ribes sanguineum var. glutinosum Unknown 1932-1 8934 San Mateo La Honda Road to Sky Line Drive Comment
  CAS-BOT-BC363094  Rigiopappus leptocladus Le Roy Abrams 1902-5-4 2401 San Mateo Woodside Comment
  JROH1207  Rigiopappus leptocladus John Hunter Thomas 1990-5-2 24833 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204034  Rigiopappus leptocladus L. S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
  JROH2207  Robinia pseudoacacia Carol Zabel 2007-4-30 66 San Mateo Jasper Ridge Biological Preserve, Stanford University; caretaker's garden area Comment
  CAS-BOT-BC341025  Robinia pseudoacacia L. R. Abrams 1921-5-3 s.n. San Mateo Prop. Tallocks garden, Stanford University Comment
  RSA159406  Romanzoffia californica John H. Thomas 1961-5-14 9369 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  POM65642  Romanzoffia californica L. R. Abrams 1916-4-22 5582 San Mateo Pilarcitos Canyon at the little upper lake; Santa Cruz Mountain Peninsula. Comment
  RSA0110964  Romanzoffia californica L. R. Abrams 1915-3-23 5568 San Mateo Crystal Springs - San Mateo Road on rocky bluff. Comment
  UCR148006  Rorippa nasturtium-aquaticum Robert E. Preston 2001-5-30 1535 San Mateo c. 9 mi NNW of Boulder Creek 305 Comment
  JROH1580  Rorippa palustris subsp. palustris John Hunter Thomas 1977-6-16 18784 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC147622  Rosa californica Walter Knight; Irja Knight 1964-5-30 618 San Mateo Colma Canyon Comment
  CAS-BOT-BC147631  Rosa californica C. B. Wolf 1931-8-20 2327 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp 91 Comment
  CAS-BOT-BC146700  Rosa gymnocarpa John H. Thomas 1961-5-14 9367 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek, San Francisco Watershed Reserve 152 Comment
  HSC23985  Rosa gymnocarpa Mary Katherine Wicksten 1971-6-24 110 San Mateo Huddart Park, near entrance Comment
  RSA112449  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo Near Crystal Springs Lake. Santa Cruz Mtns. Santa Cruz peninsula. 91 Comment
  CAS-BOT-BC146694  Rosa gymnocarpa W. R. Dudley 1896-4-17 s.n. San Mateo By Hallades Trail near wire cable between Portola and La Honda Road Comment
  CAS-BOT-BC156575  Rubus John Thomas Howell 1938-6-4 13891 San Mateo Burlingame Comment
  CAS-BOT-BC152834  Rubus parviflorus A. D. E. Elmer 1903-6-1 4294 San Mateo Alpine School House Comment
  CAS-BOT-BC152869  Rubus parviflorus Walter Knight; Irja Knight 1964-5-30 602 San Mateo Colma Creek - San Bruno Mountain Comment
  CAS-BOT-BC152870  Rubus parviflorus Walter Knight; Irja Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  CAS-BOT-BC152875  Rubus parviflorus R. Hoffough 1929-5-11 s.n. San Mateo La Honda Road Comment
  JROH3770  Rubus parviflorus John H. Thomas 1970-5-16 15632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA128601  Rubus parviflorus var. velutinus Peter H. Raven 1950-4-30 1982 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  CAS-BOT-BC156769  Rubus spectabilis Walter Knight; Irja Knight 1965-4-11 s.n. San Mateo From bank of Colma Creek. Colma Canyon Comment
  CAS-BOT-BC156770  Rubus spectabilis W. R. Dudley 1900-3-16 s.n. San Mateo By bridge over Pilarcitos road (Spanishtown & San Mateo) Comment
  CAS-BOT-BC157087  Rubus ursinus James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  CAS-BOT-BC157090  Rubus ursinus J. Clausen 1948-5-9 2079 San Mateo Tunitas Creek road 121 Comment
  CAS-BOT-BC157104  Rubus ursinus A. D. E. Elmer 1903-6-1 4664 San Mateo Crystal Springs Lake, southern end Comment
  CHSC39824  Rubus ursinus Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH3779  Rubus ursinus John H. Thomas 1977-4-29 18574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC136500  Rubus ursinus C. F. Baker 1902-1-15 246 San Mateo West side King's Mountain Comment
  CAS-BOT-BC157095  Rubus ursinus W. R. Dudley 1897-1-1 s.n. San Mateo Near junction of forks of Butano Cr. Comment
  CAS-BOT-BC422081  Rumex acetosella John H. Thomas 1964-4-30 10362 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JEPS121489  Rumex acetosella Adam C. Schneider with C. Matt Guilliams 2013-3-9 31 San Mateo Crystal Springs Reservoir Comment
  JROH3291  Rumex acetosella John H. Thomas 1974-5-19 17384 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1084377  Rumex acetosella G. Thomas Robbins 1937-4-11 74 San Mateo just s San Francisco (along Skyline Boulevard) Comment
  RSA17951  Rumex acetosella Carl B. Wolf 1927-6-4 s.n. San Mateo Summit of La Honda Grade (Pollen for Dr. Malsger - San Francisco) San Mateo County Comment
  CAS-BOT-BC421802  Rumex conglomeratus L. R. Abrams 1927-6-15 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC421576  Rumex crassus Saichi Kawahara 1968-6-15 434 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 3 Comment
  JROH5571  Rumex crispus John Rawlings 2013-5-21 1164 San Mateo Jasper Ridge Biological Preserve, Stanford University. In ditch on east side of Rd C uphilll from bridge across San Francisquito Creek. 98 Comment
  CAS-BOT-BC433541  Rumex fueginus Roxana S. Ferris 1917-10-19 729 San Mateo Margin of Crystal Springs Lake Comment
  JROH3306  Rumex pulcher John H. Thomas 1967-6-1 12964 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC433819  Rumex pulcher A. D. E. Elmer 1903-7-1 4778 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC433826  Rumex pulcher W. R. Dudley 1893-5-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Millbrae. Comment
  CAS-BOT-BC433828  Rumex pulcher Margaret Barry 1938-5-14 269 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC433830  Rumex pulcher Javier Penalosa 1963-3-30 2728 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF. 91 Comment
  JROH3313  Rumex salicifolius John Hunter Thomas 1977-6-16 18787 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD88535  Rumex salicifolius Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  UC569569  Rumex salicifolius var. crassus James Arata Karakawa 1937-10-20 228 San Mateo near Montara Comment
  JROH2219  Rupertia physodes John Hunter Thomas 1980-5-6 19922 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC311105  Rupertia physodes A. D. E. Elmer June, 1903 4270 San Mateo Crystal Springs Lake Comment
  UC1109006  Ruppia cirrhosa H. E. Parks Oct 1928 San Mateo Laguna Salada Comment
  UC279597  Ruppia maritima unknown San Mateo Laguna de Salada Comment
Read comments
Jan 2 2010
  SEINET11763346  Ruppia maritima L. S. Rose 1936-1 36724 San Mateo Granada 2 Comment
  CDA40209  Ruta chalepensis Thad 2004-9-24 s.n. San Mateo San Francico Bay Area; City of San Mateo. 0 Comment
  JROH1724  Sagina John Hunter Thomas 1984-4-8 23277 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1711  Sagina apetala John H. Thomas 1961-4-8 9073 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1723  Sagina apetala Toni Corelli 2009-3-25 349 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road F along road 152 Comment
  SJSU7513  Salix exigua Lewis S. Rose 1965-3-8 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC125372  Salix lasiandra var. lasiandra W. R. Dudley 1893-1-1 s.n. San Mateo Hill north of South San Francisco Comment
  JROH3876  Salix lasiandra var. lasiandra John H. Thomas 1975-5-2 17854 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC107135  Salix lasiolepis Walther 1919-2-23 s.n. San Mateo Woodside Comment
  CAS-BOT-BC166940  Salix lasiolepis Peter Rubtzoff 1976-3-14 8446 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH3864  Salix lasiolepis John Hunter Thomas 1983-4-5 21330 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing Comment
  RSA178596  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo Near jct of San Francisquito and Los Trancos creeks. About 2 miles from Stanford University. Comment
  CAS-BOT-BC124494  Salix lasiolepis var. lasiolepis Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  CAS-BOT-BC128208  Salix lucida W. R. Dudley 1894-3-26 s.n. San Mateo Near San Gregorio - Santa Cruz Peninsula Comment
  CAS-BOT-BC126479  Salix sitchensis W. R. Dudley 1902-4-26 s.n. San Mateo Alpine Road Comment
  CAS-BOT-BC126482  Salix sitchensis W. R. Dudley 1899-5-14 s.n. San Mateo So.W. of Baden Station Comment
  CAS-BOT-BC126494  Salix sitchensis L. S. Rose 1932-1-23 3217 San Mateo Arroyos, Moss Beach Comment
  CAS-BOT-BC126510  Salix sitchensis E. A. McGregor 1908-3-28 s.n. San Mateo [King's] Kings Mt. 365 Comment
  CDA33774  Salix sitchensis D. G. Kelch 2011-3-13 11 .051 San Mateo Pacifica. Along sea bluffs Comment
  UC75015  Salix sitchensis unknown 1902-3 San Mateo King's Mt. Comment
  POM63429  Salvia spathacea A. D. E. Elmer 1903-05 4440 San Mateo Colma. Comment
  SEINET10581809  Salvia spathacea Lewis S. Rose 1965-4-22 Rose 65028 San Mateo San Bruno Mountain, Colma Canyon open slopes. 61 Comment
  RSA0034073  Sambucus Peter Rubtzoff 1987-8-26 9840 San Mateo San Bruno Mountain, Saddle area on N side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road. Upper part of East Fork Colma Creek Canyon. Comment
  RSA120030  Sambucus callicarpa W. R. Dudley 1950-3-16 s.n. San Mateo Near bridge over Pilancitas Creek, on road to Half-Moon Bay Comment
  CAS-BOT-BC246023  Sambucus nigra subsp. caerulea George Oberlander 1950-4-2 586 San Mateo Sawyer Ridge, San Francisco Watershed Reserve Comment
  JROH1676  Sambucus nigra subsp. caerulea John Hunter Thomas 1989-5-9 24724 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236455  Sambucus racemosa subsp. racemosa James B. Roof 1966-3-27 s.n. San Mateo Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC235074  Sambucus racemosa var. racemosa W. R. Dudley 1893-3-24 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek Comment
  IRVC28133  Sambucus racemosa var. racemosa G. K. Helmkamp, E. A. Helmkamp 2001-6-2 6783 San Mateo Purissima Crk Rd, E of Half Moon Bay at Purissima Crk, 3.2 mi E of CA-1. Central CA coast 244 Comment
  UCSB11444  Sambucus racemosa var. racemosa Olson, Jim 1962-4-17 San Mateo 5 miles southeast of Halfmoon Bay on road to San Mateo 45 Comment
  JEPS189  Sanicula arctopoides Mrs. Inez Ray Smith 1915-3-1 San Mateo Burlingame Comment
  UC1301128  Sanicula arctopoides Helen K. Sharsmith 1963-2-16 5131 a San Mateo above Daly City (San Francisco Bay Region, San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  RSA184887  Sanicula arctopoides L. S. Rose 1965-3-25 65012 San Mateo San Bruno Mountains, North end. 122 Comment
  POM133561  Sanicula bipinnata L. R. Abrams 1901-03 1141 San Mateo Woodside. Comment
  JROH318  Sanicula bipinnata Carol Zabel 1990-3-30 39 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11, curve downhill from intersection with Trail 10, above Chinese houses Comment
  CAS-BOT-BC223322  Sanicula bipinnatifida Margaret A. Barry 1938-3-6 230 San Mateo On Coal Mine Ridge Comment
  JROH341  Sanicula crassicaulis John H. Thomas 1977-4-28 18562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC166811  Sanicula crassicaulis Peter Rubtzoff 1976-6-13 8638 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; in upper part of East Fork Colma Creek canyon. Comment
  SEINET8232375  Sanicula laciniata A. D. E. Elmer 1903-1 4498 San Mateo Portola. Comment
  JROH347  Sanicula tuberosa H. J. Dengler 1964-3-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in the center of the westernmost enclosure, above the old trail to S.F. Creek Comment
  CAS-BOT-BC218936  Schinus molle John H. Thomas 1960-6-25 8788 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street 7 Comment
  SEINET11754562  Schoenoplectus pungens Unknown 1932-1 9115 San Mateo Half Moon Bay 0 Comment
  CAS-BOT-BC176408  Scirpus cernuus var. californicus Peter Rubtzoff; Roman Gankin 1975-5-21 7970 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET3914303  Scirpus cernuus var. californicus Lewis S. Rose 1948-12-3 48242 San Mateo Ocean Shore Blvd., 6 mi. S of San Francisco Co. line.; 0 Comment
  CAS-BOT-BC111060  Scirpus microcarpus Phillip C. Wheeler 1965-5-18 s.n San Mateo April Brook toward the meadow Comment
  UCD141255  Scirpus microcarpus Malcolm A. Nobs; S. Galen Smith 1949-8-25 1559 San Mateo Sharp Park. Comment
  CAS-BOT-BC519011  Scoliopus bigelovii John Thomas Howell 1924-2-23 265 San Mateo King Mountain Comment
  SEINET12050509  Scoliopus bigelovii F. H. Utech 1988-1 88 -040 San Mateo 2.6 mi from junction of Kings Mt. Road & CA 35 on former enroute to Woodside 350 Comment
  SEINET12057692  Scoliopus bigelovii F. H. Utech, Sato, T.; Ohara, M. 1990-5-4 90 -223 San Mateo 0.5 mi from junction of Kings Mt Rd & CA 35, on the former, near Skyline Trail head 580 Comment
  CDA7623  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  UC1012346  Scrophularia californica F. W. Pennel and D. D. Keck 1940-5-15 25424 San Mateo sw San Mateo (e of upper Crystal Springs Lake) 91 Comment
  UCD124850  Scrophularia californica R. S. Woglum 1935-5-25 1167 San Mateo Southeast San Mateo County: San Francisco area, Skyline Drive to Big Basin. Comment
  POM64273  Scutellaria tuberosa C. F. Baker 1902-4-4 447 San Mateo Crystal Springs Lake Comment
  UC76166  Scutellaria tuberosa Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  CAS-BOT-BC59063  Sedum spathulifolium J. H. Thomas 1961-5-7 9320 San Mateo San Bruno Mountain in N part of county. 396 Comment
  CAS-BOT-BC59052  Sedum spathulifolium Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain, below parking lot on the top of the mountain. Comment
  CAS-BOT-BC59058  Sedum spathulifolium W. R. Dudley 1909-4-27 s.n. San Mateo Pulpit Rock, San Mateo Canyon. Comment
  CAS-BOT-BC363397  Senecio aronicoides Fred Hemphill 1973-5-6 784 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1219  Senecio aronicoides John H. Thomas 1967-5-10 12855 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC363385  Senecio aronicoides W. R. Dudley 1893-5-27 s.n. San Mateo Santa Cruz Peninsula. Near Summit Springs - Kings Mt. Comment
  SEINET5571345  Senecio aronicoides H. S. Gentry 1931-1 103 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC363735  Senecio hydrophilus Alice Eastwood; John Thomas Howell 1938-6-26 6058 San Mateo Near Pescadero Comment
  CAS-BOT-BC363759  Senecio integerrimus L. Roush; G. Kimber 1918-5-7 s.n. San Mateo Sandstone Quarry Comment
  JEPS27356  Senecio sylvaticus Rimo Bacigalupi with Jim Roof and L. R. Heckard 1961-4-24 7617 San Mateo shoulder of spur facing almost due e KQED radio tower and power station; Summit of San Bruno Mountain 350 Comment
  CAS-BOT-BC80290  Sequoia sempervirens Ira L. Wiggins 1925-4-1 1659 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  POM216898  Sequoia sempervirens D. D. Keck 1932-2-14 1368 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 305 Comment
  SEINET13289873 Image available Sequoia sempervirens D. W. Woodland 1974-1 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5334860  Sequoia sempervirens R. L. Oliver 1976-4-18 s.n. San Mateo La Honda. San Mateo Memorial Park. Comment
  SEINET6841677  Sequoia sempervirens R. A. Evers, Clara V. Evers 1975-8-24 115029 San Mateo Trailer Villa, Redwood City. Comment
  CAS-BOT-BC243555  Setaria parviflora Paul Reeberg; Jake Sigg; Peter Rubtzoff 1991-8-10 s.n. San Mateo West side of P.G.&E. property, adjacent of P.G.&E. Marsh, San Bruno Mountains Comment
  UC18913  Sidalcea malviflora subsp. laciniata J. Burtt Davy 1895-4-20 1024 San Mateo Millbrae Comment
  POM214348  Sidalcea malviflora subsp. malviflora I. L. Wiggins 1931-2-21 5097 San Mateo Near Pescadero Comment
  RSA7439  Sidalcea malviflora subsp. malviflora J. T. Howell 1933-4-9 10974 San Mateo 2 miles N. of Pigeon Pt. Comment
  CHSC22898  Sidalcea malviflora subsp. rostrata Robert A. Schlising 1963-2-23 2434 San Mateo California Coast Ranges. 21 miles north of Davenport, along highway 1. Comment
  JROH1730  Silene gallica John H. Thomas 1965-4-28 10595 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA177058  Silene gallica John H. Thomas 1964-5-9 10377 San Mateo San Gregorio beach. Comment
  SD38220  Silene gallica Edith A. Purer 1933-7-27 5343 San Mateo Pigeon Point. Comment
  CAS-BOT-BC386849  Silene gallica Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain, slope above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC386857  Silene gallica Margaret Barry 1937-5-15 144 San Mateo on Coal Mine Ridge Comment
  JROH1739  Silene gallica John Hunter Thomas 1983-4-28 21775 San Mateo Jasper Ridge Biological Preserve, Stanford University; at low-flow crossing Comment
  JROH5886  Silene gallica Ruth Porter 1998-5-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389197  Silene laciniata subsp. californica L. R. Abrams 1920-6-1 7494 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  CAS-BOT-BC389898  Silene scouleri subsp. scouleri Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC389896  Silene verecunda Dean Wm. Taylor 1988-4-8 9505 San Mateo Santa Cruz Mountains. San Bruno Mountain, summit of mountain, near the parking lot at the eastern extent of public road access Comment
  JROH1232  Silybum marianum John H. Thomas 1969-6-4 15116 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC74986  Sinapis arvensis Fred Hemphill 1973-4-8 604 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC75379  Sisymbrium orientale Walter Knight; Irja Knight 1965-4-11 s.n. San Mateo San Bruno Mountains. Guadalupe Road about 0.5 mile from Radio Road. Comment
  JROH4441  Sisyrinchium bellum John H. Thomas 1967-6-1 12966 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4442  Sisyrinchium bellum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM169079  Sisyrinchium bellum C. F. Baker 1902-3-30 428 San Mateo Crystal Springs Lake. Comment
  SD227685  Sisyrinchium bellum G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3746 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  POM291003  Sisyrinchium bellum Lyman Benson 1935-4-27 6421 San Mateo La Honda Road, Santa Cruz Mts, east of Skyline Blvd., San Francisco Bay watershed. 457 Comment
  RSA155568  Sisyrinchium bellum Lewis S. Rose 1961-4-5 61031 San Mateo San Bruno Mountains. 366 Comment
  UCSB18427  Sisyrinchium bellum Muirhead, M. 1964-4-17 San Mateo Crocker Estate; Hillsborough 76 Comment
  UC1032495  Sisyrinchium californicum H. S. Yates 1935-3-8 5218 San Mateo 2 mi sw of Pescadero 60 Comment
  UC13692  Sisyrinchium californicum Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  UC844176  Smilacina racemosa L. R. Abrams 1916-3-25 5585 San Mateo near Dam; Santa Cruz Mountain Peninsula, Searsville Ridge Comment
  SEINET5571657  Smilacina stellata H. S. Gentry 1931-1 3 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  UCD126877  Solanum douglasii G. L. Stebbins Jr.; E. F. Paddock 1939-8-17 63 San Mateo San Gregorio. Comment
  UC1332475  Solanum furcatum G. L. Stebbins Jr. and E. F. Paddock 1940-9-7 101 San Mateo at junction of three upper forks of San Pedro Creek (1 mi from seashore, San Pedro Valley); San Pedro Valley 30 Comment
  RSA784603  Solanum furcatum Peter Rubtzoff 1974-12-17 7941 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UC563964  Solanum physalifolium var. nitidibaccatum Ira L. Wiggins 1935-8-24 8164 San Mateo 1/2 mi s of Moss Beach Comment
Read comments
Mar 12 2009
  JROH4189  Solanum umbelliferum John H. Thomas 1968-3-17 14192 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC157039  Solanum umbelliferum S. Kawahara 1968-7-29 464 San Mateo Side road off Old Stage Road at south bank of Pomponio Creek 36 Comment
  CAS-BOT-BC58503  Solanum umbelliferum W. R. Dudley 1899-5-14 s.n. San Mateo Head of San Pedro Creek Comment
  RSA473644  Solidago californica E. A. Purer 1933-8-25 5523 San Mateo Spring Valley. Comment
  CAS-BOT-BC365535  Solidago elongata Walter Knight 1964-9-14 s.n. San Mateo Peak Mountain - Montara Range Comment
  CAS-BOT-BC365747  Solidago spathulata Elizabeth McClintock 1966-9-29 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  UC1555381  Solidago spathulata J. A. DeBenedictis 1988-7-13 1543 San Mateo San Bruno Mountain Comment
  CAS-BOT-BC365193  Solidago velutina subsp. californica Josephine D. Randall 1907-7-4 96 San Mateo Santa Cruz Peninsula. Mill's Lake Comment
  CAS-BOT-BC365927  Soliva sessilis John H. Thomas 1964-4-30 10370 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH1241  Soliva sessilis John H. Thomas 1977-2-20 18467 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1253  Soliva sessilis John Hunter Thomas 1989-5-11 24736 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1254  Soliva sessilis John Hunter Thomas 1992-5-5 25212 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374704  Sonchus oleraceus Margaret A. Barry 1938-4-21 240 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC236582  Sorghum halepense J. H. Thomas 1965-9-8 11444 San Mateo Near intersection of Bayshore and University Avenue, east Palo Alto Comment
  JROH5949  Sparaxis tricolor Trevor Hebert, John Rawlings 2017-4-6 2015 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the Sand Hill Rd. fence-line northeast of the intersection of Road L and Road H 124 Comment
  JROH5523  Sparganium eurycarpum var. eurycarpum John H. Thomas 1964-6-3 10412 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake near bridge. Comment
  JROH5524  Sparganium eurycarpum var. eurycarpum John Hunter Thomas 1979-5-22 19574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD93001  Spartina foliosa Ira L. Wiggins 1938-11-25 9213 San Mateo along Dumarton Bridge approach. Comment
  JROH1749  Spergula arvensis Toni Corelli 2005-3-2 283 San Mateo Jasper Ridge Biological Preserve, Stanford University; upper trail 3, along trail side for 20 m between trail edge and canopy of blue oak woodland 176 Comment
  JROH5600  Spergula arvensis John Rawlings 2014-3-18 1209 San Mateo Jasper Ridge Biological Preserve, Stanford University; upper trail 3. 187 Comment
  JROH1765  Spergularia John Hunter Thomas 1987-5-7 24263 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA224264  Spergularia bocconi P. H. Raven 1954-5-16 6954 San Mateo Oceanic bluffs North of mouth of Lobos Creek. Comment
  CAS-BOT-BC390453  Spergularia macrotheca var. macrotheca J. H. Thomas 1954-5-28 4245 San Mateo Guadalupe Valley, about 2 miles south of San Francisco - San Mateo County line 30 Comment
  CAS-BOT-BC390468  Spergularia macrotheca var. macrotheca Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC390466  Spergularia macrotheca var. macrotheca W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. By grade, south slope Montara Mts. and near the ocean Comment
  CAS-BOT-BC390917  Spergularia marina C. F. Baker 1902-10-20 1859 San Mateo Searsville Comment
  CAS-BOT-BC390920  Spergularia marina Malcom A. Nobs; S. Galen Smith 1949-8-26 1596 San Mateo At the mouth of Pescadero Creek Comment
  CAS-BOT-BC390704  Spergularia rubra Javier Penalosa 1963-3-30 2752 San Mateo San Bruno Mountain. Crest of ridge SW of Brisbane, 750 ft NW of power lines 304 Comment
  SD39424  Spiranthes romanzoffiana Edith A. Purer 1939-7-1 7928 C San Mateo Wet spot, snd dunes, Ano Nuevo Point. Comment
  POM283275  Stachys bullata Lyman Benson 1928-12-15 828 San Mateo La Honda, Santa Cruz Mountain Range, North slope. 213 Comment
  SEINET10499250  Stachys bullata A. Arthur Heller 1907-5-28 Heller 8581 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UC306579  Stachys pycnantha A. D. E. Elmer June, 1903 4261 San Mateo Alpine School House Comment
  UCR279847  Stachys rigida subsp. quercetorum Peter Rubtzoff 1977-6-21 9063 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC5590  Stachys rigida var. quercetorum A. A. Heller 1907-5-28 8577 San Mateo Above Crystal Springs on the Half Moon Bay road 137 Comment
  JEPS127878  Stachys rigida var. quercetorum Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 298 San Mateo Crystal Springs Reservoir Comment
  JROH1784  Stellaria media John Hunter Thomas 1981-4-5 20289 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  JROH1792  Stellaria nitens Toni Corelli 2006-3-22 309 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 5, lost serpentine trail 121 Comment
  CAS-BOT-BC398983  Stellaria nitens John H. Thomas 1971-5-2 17131 d San Mateo Serpentine fields bordered by chaparral, near intersection of Canda and Edgewater roads, about three miles westward from Redwood City. 152 Comment
  JROH5324  Stipa lepida John Hunter Thomas 1981-5-25 20618 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5391  Stipa miliacea var. miliacea Toni Corelli 2004-7-14 280 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13, In causeway, on south side of Leonard's bridge. 106 Comment
  JROH5392  Stipa miliacea var. miliacea Ann Lambrecht 2004-7-20 11 San Mateo Jasper Ridge Biological Preserve, Stanford University. Off Trail 13, about 10 m from W end of Leonard's bridge, and about 2 m N of bridge. Comment
  JROH5609  Stuckenia pectinata Ann Lambrecht, Paul Heiple 2008-8-6 45 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  UCSB272  Stuckenia pectinata McPherson, D. 1960-8-1 San Mateo Felt Lake, Stanford University foothills Comment
  UC50119  Stylomecon heterophylla J. Burtt Davy 1895-4-20 1080 San Mateo San Mateo Creek Comment
  CAS-BOT-BC423015  Stylomecon heterophylla Walter Knight; Irja Knight 1965-3-27 1017 San Mateo San Bruno Mountain. Devil's Gulch. Comment
  JEPS85568  Symphoricarpos albus var. laevigatus Craig Dremann 1986-8-30 326 San Mateo near San Gregorio (on Stage road, 500 ft s of intersection of Seaside School road, next to road) Comment
  POM285012  Symphoricarpos albus var. laevigatus Lyman Benson 1937-7-15 8449 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  CAS-BOT-BC237059  Symphoricarpos mollis Ned Cahill 1974-5-13 254 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 mi. westward from REdwood City Comment
  CAS-BOT-BC237061  Symphoricarpos mollis Eric Walther 1919-7-4 s.n. San Mateo Woodside Comment
  CAS-BOT-BC344896  Symphyotrichum chilense Peter Rubtzoff; Roman Gankin 1975-9-11 8377 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains Comment
  CAS-BOT-BC99087  Symphyotrichum chilense John H. Thomas 1976-10-7 18395 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south 30 Comment
  CAS-BOT-BC99094  Symphyotrichum chilense W. R. Dudley 1899-11-29 s.n. San Mateo Near Alpine School House, Black Mt. - Santa Cruz Peninsula Comment
  RSA417609  Symphyotrichum chilense D. D. Keck 1931-9-27 1274 San Mateo Dumbarton bridge Comment
  CAS-BOT-BC99386  Symphyotrichum subspicatum Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo Willow Pond, San Bruno Mountains Comment
  SJSU11814  Symphyotrichum subspicatum R. R. Regnart 1961-5-7 San Mateo by Purissima Creek Road by Purissima Creek 0.5 mi E of Purissima Comment
  JROH1279  Tanacetum parthenium Carol Zabel 1989-8-11 30 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank upstream 20 feet from low-flow crossing on Road C Comment
  CAS-BOT-BC376917  Taraxacum officinale J. H. Thomas 1964-4-30 10337 San Mateo Near intersection of El Camino Real and F St., Colma Comment
  JROH5940  Taraxacum officinale John Rawlings 1917-2-22 1958 San Mateo Jasper Ridge Biological Preserve, Stanford University; in and along Trail 20 85 Comment
  JROH5751  Taraxia ovata L. Nordby 1982-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab on the west side of Searsville Lake. Comment
  JROH369  Tauschia hartwegii John H. Thomas 1976-4-19 18086 San Mateo Jasper Ridge Biological Preserve, Stanford University; vicinity of dam Comment
  CAS-BOT-BC447467  Tellima grandiflora Carl B. Wolf 1929-5-10 3710 San Mateo santa Cruz Mts La Honda 304 Comment
  UC203041  Tellima grandiflora A. D. E. Elmer Jun 1903 4702 San Mateo Pescadero Comment
  CAS-BOT-BC447484  Tellima grandiflora Roxana S. Ferris 1920-4-26 1964 San Mateo Pescadero near mouth of canon 152 Comment
  RSA127726  Tetragonia tetragonoides John H. Thomas 1959-7-8 8015 San Mateo Low moist coastal bluffs at Pescadero Beach. Comment
  CAS-BOT-BC438262  Tetragonia tetragonoides Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  JROH3506  Thalictrum fendleri var. polycarpum Daniel Cohen 1953-4-11 14 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing near roadside at edge of Searsville Lake Comment
  JROH3514  Thalictrum fendleri var. polycarpum John Hunter Thomas 1988-4-7 24381 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near dam Comment
  UCSB18684  Thalictrum fendleri var. polycarpum Schulte, John 1963-4-14 San Mateo top of Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC202036  Thinopyrum ponticum Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains. Along Bayshore Boulevard 15 Comment
  CAS-BOT-BC66663  Thysanocarpus curvipes John H. Thomas 1971-4-3 15745 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66672  Thysanocarpus curvipes John H. Thomas 1975-4-5 17715 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66678  Thysanocarpus curvipes Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills. Comment
  JROH1589  Thysanocarpus curvipes John Hunter Thomas 1980-4-5 19859 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1604  Thysanocarpus curvipes John Hunter Thomas 1985-4-6 23511 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH5697  Thysanocarpus curvipes subsp. elegans John Rawlings 2015-3-31 1418 San Mateo Jasper Ridge Biological Preserve, Stanford University. Northwest side of small drainage upstream from the footbridge on Trail 11. 134 Comment
  CAS-BOT-BC447580  Tiarella trifoliata var. unifoliata Josephine D. Randall 1907-7-28 372 San Mateo Santa Cruz Peninsula: Iverson's near Peters Creek Comment
  JROH403  Torilis nodosa John Hunter Thomas 1989-5-9 24697 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old shack riders shack Comment
  CAS-BOT-BC81497  Torreya californica William R. Dudley 1894-4-24 s.n. San Mateo near La Honda, Santa Cruz Mts. Comment
  RSA45321  Torreya californica I. L. Wiggins 1945-5-5 11161 San Mateo Along La Honda Creek about 1 mile above La Honda 152 Comment
  JROH5898  Toxicodendron diversilobum M. Ray 1982-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; trailside south of Searsville Lake Comment
  JROH4296  Tribulus terrestris Toni Corelli 2005-9-14 305 a San Mateo Jasper Ridge Biological Preserve, Stanford University; along road B just west of entrance to Dennis Martin marker site 168 Comment
  SD39136  Trientalis europaea var. latifolia Edith A. Purer 1933-5-16 3603 San Mateo Alpine Road Comment
  JROH3394  Trientalis latifolia John Hunter Thomas 1978-4-28 19161 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA10319  Trientalis latifolia H. A. Barker 1929-5-1 544 San Mateo Kings Mt Comment
  RSA116717  Trientalis latifolia E. W. Rust 1907-4-13 s.n. San Mateo Los Traucos Creek. Comment
  UCSC010358  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  RSA178681  Trifolium albopurpureum John H. Thomas 1964-4-19 10319 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Near Searsville Lake. Comment
  SEINET3523144 Image available Trifolium albopurpureum Lewis S. Rose 1933-5-17 33172 San Mateo Redwood City. Comment
  UC33530  Trifolium albopurpureum var. albopurpureum E. R. Drew April 1888 San Mateo San Pedro Ranch Comment
  UC631539  Trifolium albopurpureum var. albopurpureum A. A. Heller 1907-5-23 8554 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  JROH2241  Trifolium barbigerum John H. Thomas 1974-4-25 17202 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  POM20401  Trifolium barbigerum A. D. E. Elmer 1903-04 4859 San Mateo Lake San Andreas Comment
  JROH2253  Trifolium bifidum var. decipiens John H. Thomas 1967-5-12 12879 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM20507  Trifolium bifidum var. decipiens A. D. E. Elmer 4714 San Mateo Portola. Comment
  RSA349487  Trifolium bifidum var. decipiens D. D. Keck 1932-6-1 1790 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mountains 305 Comment
  UC575709  Trifolium bifidum var. decipiens Lewis S. Rose 1935-5-1 35134 San Mateo Redwood City Comment
  POM277940  Trifolium ciliolatum Lyman D. Benson 1935-5-5 6529 San Mateo Lake Searsville 152 Comment
  JROH2267  Trifolium depauperatum var. truncatum John H. Thomas 1957-4-16 6650 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH2231  Trifolium dichotomum John H. Thomas 1966-4-22 11574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2232  Trifolium dichotomum John H. Thomas 1967-5-10 12845 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2279  Trifolium dubium John Hunter Thomas 1978-4-25 19150 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS127790  Trifolium fucatum Adam C. Schneider with C. Matt Guilliams 2013-4-7 61 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH2290  Trifolium fucatum John H. Thomas 1973-4-14 16560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU7974  Trifolium fucatum S. H. Anderson 1962-4-15 San Mateo Burlingame Hills Comment
  SJSU15442  Trifolium glomeratum Toni Corelli 2010-5-13 602 San Mateo Pedro Point Headlands, Pacifica, CA, disturbed area along South Ridge Trail, west of Hwy. 1 100 Comment
  JEPS127823  Trifolium gracilentum Adam C. Schneider with C. Matt Guilliams 2013-4-7 80 San Mateo Comment
  CDA27958  Trifolium gracilentum T. C. Fuller 1967-6-13 15941 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  JROH2333  Trifolium hirtum John Hunter Thomas 1991-5-28 25066 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  UC630795  Trifolium macraei Charles Piper Smith 1908-4-26 1420 San Mateo se cemeteries; base of San Bruno Mtn Comment
  UC866875  Trifolium microcephalum Lewis S. Rose 1935-5-1 35139 San Mateo Belmont Comment
  CDA28004  Trifolium microdon D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  UC1130082  Trifolium microdon H. S. Yates 1935-5-8 5205 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  JROH5592  Trifolium oliganthum John Rawlings 2013-4-19 1165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 in chaparral. 144 Comment
  SEINET10630892  Trifolium pratense Robert A. Norris 1977-5-2 Norris 3567 San Mateo In disturbed soil on gravelly bank by Interstate Hwy. 280, just S of Farmhill Blvd. Exit, Woodside, San Mateo Co., California. Comment
  JROH2344  Trifolium repens John H. Thomas 1974-10-29 17645 San Mateo Jasper Ridge Biological Preserve, Stanford University; small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH2351  Trifolium subterraneum John Hunter Thomas 1983-4-3 21312 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside near Searsville Lab Comment
  JROH2352  Trifolium subterraneum John Hunter Thomas 1983-4-3 21312 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside near Searsville Lab Comment
  JROH2389  Trifolium variegatum John Hunter Thomas 1991-5-2 25007 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33492  Trifolium variegatum A. D. E. Elmer -May-1903 San Mateo Portola Comment
  UCSC006359  Trifolium variegatum Randall Morgan 1995-6-6 2725 San Mateo Group at Bean Hollow State Beach 2.5 mi S of Pescadero Rd. Comment
  JROH2403  Trifolium willdenovii John Hunter Thomas 1978-4-20 19079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2416  Trifolium willdenovii John Hunter Thomas 1991-5-2 25022 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU1077  Trifolium willdenovii C. W. Sharsmith 1951-4-7 5828 San Mateo Woodside Hills, 3 mi W of Woodside 182 Comment
  POM278617  Trifolium willdenovii Lyman D. Benson 1930-5-1 2057 San Mateo Stanford Univ.; San Lorenzo mt. range. 122 Comment
  CHSC996  Trifolium wormskioldii A. Koopman 1929-5-9 San Mateo Moss Beach. Comment
  POM126713  Trifolium wormskioldii R. L. Pendleton 1907-4-20 592 San Mateo Lake Merced. 30 Comment
  UCSC007785  Trifolium wormskioldii Becky Hendricks 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  UC1140924  Trillium chloropetalum W. R. Dudley 1900-3-16 San Mateo by trail n. of Tripp's Store Woodside; Santa Cruz Peninsula, Woodside Comment
  UC74959  Trillium chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake Comment
  SEINET5577479  Trillium chloropetalum H. S. Gentry 1931-1 1 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  CAS-BOT-BC521007  Trillium chloropetalum var. chloropetalum R. Bacigalupi 1922-3-1 s. n. San Mateo Jones Ranch, Pescadero Creek Comment
  CAS-BOT-BC521069  Trillium chloropetalum var. giganteum C. F. Leithold 1894-7-29 s.n. San Mateo Santa Cruz Peninsula: Near La Honda Comment
  CAS-BOT-BC521075  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula: ravine S side Montara Mt. Comment
  CAS-BOT-BC521201  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Peninsula: by trail north of Tripps Store, Woodside Comment
  POM170122  Trillium chloropetalum var. giganteum Stewart H. Burnham 1894-2-24 10525 San Mateo Summit Springs. Comment
  CAS-BOT-BC133432  Trillium ovatum W. R. Dudley 1893-4-1 s.n. San Mateo Bear Gulch [Canon] Canyon, near Woodside Comment
  CAS-BOT-BC133444  Trillium ovatum C. F. Leithold 1896-3-28 s.n. San Mateo Near Kings Mt. Comment
  POM169950  Trillium ovatum A. D. E. Elmer 1903-04 4752 San Mateo Portola. Comment
  RSA378207  Trillium ovatum A. C. Life 1924-2-22 s.n. San Mateo Kings Mountain, Redwood Park. Comment
  UC142146  Trillium ovatum Dr. E. L. Greene 1902-3-18 329 San Mateo West side King's Mountain, San Mateo County Comment
  UC202804  Trillium ovatum A. D. E. Elmer April, 1903 4752 San Mateo Portola Comment
  UC1327237  Triphysaria eriantha subsp. eriantha John T. Doyen 1966-3-28 36 San Mateo San Bruno Mountain; near Radio Towers on top Comment
  JEPS40977  Triphysaria eriantha subsp. rosea Lewis S. Rose 1965-3-25 65010 San Mateo n end San Bruno Mts.; n end San Bruno Mts. 121 Comment
  CAS-BOT-BC238557  Triphysaria floribunda Walter Knight; Irja Knight 1965-4-24 1054 San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC238573  Triphysaria floribunda A. D. E. Elmer 1903-4-1 4522 San Mateo South San Francisco Comment
  SBBG54528  Triphysaria floribunda F. W. Pennell, D. D. Keck 1940-5-15 25426 San Mateo 4 mi W of Burlingame 152 Comment
  UC27202  Triphysaria floribunda J. Burtt Davy 1895-4-20 1028 San Mateo Millbrae Comment
  UC311192  Triphysaria floribunda A. D. E. Elmer April, 1903 4522 San Mateo South San Francisco Comment
  JROH4133  Triphysaria pusilla John H. Thomas 1957-4-16 6660 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH4144  Triphysaria pusilla John Hunter Thomas 1985-4-18 23527 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7067219  Triphysaria pusilla A. G. Vestal 1947-5-10 s.n. San Mateo Up east side of Jasper Ridge. Coordinate datum: NAD27. UTM Zone 10, 568517mE, 4140222mN. Comment
  UC1063255  Triphysaria pusilla H. S. Yates 1935-5-8 5208 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. Comment
  JROH4736  Triteleia hyacinthina John H. Thomas 1963-5-12 10082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM277006  Triteleia ixioides subsp. ixioides Lyman Benson 1930-5-3 2093 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  IRVC9072  Triteleia ixioides subsp. ixioides P. W. Rundel 1963-7-7 1136 San Mateo San Francisco Bay drainage area; Summer Spring Road; woodside. Santa Cruz Mountains 152 Comment
  RSA18293  Triteleia ixioides subsp. ixioides Carl B. Wolf 1927-6-21 424 San Mateo East slope of Kings Mt. Comment
  RSA18305  Triteleia laxa Carl B. Wolf 1927-5-31 411 San Mateo North end of Searsville Lake. Comment
  CAS-BOT-BC526364  Triteleia laxa Philip C. Wheeler 1965-6-8 s.n. San Mateo Crocker Hills, San Bruno Mountain Comment
  CAS-BOT-BC526789  Triteleia laxa D. D. Davis 1903-5-1 2 San Mateo near [?]avery place Comment
  CAS-BOT-BC67379  Tropidocarpum gracile Le Roy Abrams 1898-4-1 s.n. San Mateo Portola. Comment
  POM273891B  Tropidocarpum gracile Lyman Benson 1930-5-1 2047 San Mateo Stanford University. Mt. Range: San Lorenzo. 122 Comment
  CAS-BOT-BC74054  Turritis glabra John H. Thomas 1965-4-28 10606 San Mateo San Bruno Mountain in northern part of county. 914 Comment
  CAS-BOT-BC74061  Turritis glabra W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Top of Montara Mountains. Comment
  POM204316  Typha angustifolia I. L. Wiggins 1929-7-4 3803 San Mateo Marsh near Pescadero Beach. Comment
  RSA10402  Typha angustifolia Carl B. Wolf 1927-6-15 2168 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  UC241806  Typha latifolia Herbert L. Mason 1949-7-7 14032 San Mateo mouth of Pescadero Creek Comment
  RSA254229  Ulex europaeus Robert A. Norris 1975-3-31 2292 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  RSA78564  Ulex europaeus Philip A. Munz 1953-2-1 18274 San Mateo North of Scott Valley. Comment
  JROH136  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  RSA176662  Umbellularia californica P. H. Raven 1964-2-16 18743 San Mateo Just south of Lake San Andreas. Comment
  JROH1290  Uropappus lindleyi John H. Thomas 1963-5-12 10084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC382762  Uropappus lindleyi unspecified Ap-- s.n. San Mateo San Mateo, San Bruno Mts Comment
  SEINET12026865  Urtica dioica Unknown 1932-1 9154 San Mateo Sky Line Drive Comment
  UCD111539  Urtica dioica subsp. gracilis G. K. Helmkamp; E. A. Helmkamp 2001-6-2 6780 San Mateo Central CA coast: Purissima Crk Road, E of Half Moon Bay at Purissima Crk, 3.2 miles E of CA-1. 243 Comment
  POM87994  Urtica dioica subsp. holosericea L. R. Abrams 1901-09 2218 San Mateo Menlo Park. Comment
  JEPS43426  Urtica urens W. L. Jepson 1921-4-3 9105 San Mateo Colma, Colma Canyon Colma Canyon; Colma, Colma Canyon Comment
  CAS-BOT-BC199176  Vaccinium cespitosum John H. Thomas 1961-5-7 9317 A San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC199178  Vaccinium cespitosum John H. Thomas 1963-9-11 10264 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC199356  Vaccinium ovatum L. R. A. 1902-3-16 2281 San Mateo Kings Mountain Comment
  CAS-BOT-BC199358  Vaccinium ovatum A. D. E. Elmer 1903-4-1 4561 San Mateo King's [Kings] Mountain Comment
  CAS-BOT-BC199363  Vaccinium ovatum W. R. Dudley 1898-3-5 s.n. San Mateo Kings Mountain Comment
  RSA152267  Vaccinium ovatum John H. Thomas 1961-5-7 9298 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UCD118098  Vaccinium ovatum Lewis S. Rose 1964-3-14 64005 San Mateo Kings Mountain. 609 Comment
  SEINET10449305  Vaccinium ovatum Mary Susan Taylor 1978-8-30 Taylor 1862 San Mateo Comment
  CAS-BOT-BC199465  Vaccinium parvifolium A. D. E. Elmer 1903-5-1 4924 San Mateo Butano Creek Comment
  UC141744  Vaccinium parvifolium Dr. E. B. Copeland 1903-5-9 3249 San Mateo Big Basin of Pescadero Creek Comment
  CAS-BOT-BC76141  Vancouveria planipetala J. H. Thomas 1954-4-15 3907 San Mateo About 1.5 mile southwest of Searsville Lake. 228 Comment
  POM149188  Vancouveria planipetala A. D. E. Elmer 1903-05 4922 San Mateo Iverson s Place; on the Pescadero Creek. Comment
  SBBG33515  Vancouveria planipetala A. D. E. Elmer -May-1903 4922 San Mateo Iverson's Place, Pescadero Crk Comment
  UC511343  Vancouveria planipetala Lyman Benson 1931-5-10 2795 San Mateo Woodside; Santa Cruz Mts., Woodside 243 Comment
Read comments
Sep 12 2011
  UC74931  Vancouveria planipetala Dr. E. B. Copeland 1903-5-9 3051 San Mateo Big Basin Comment
  RSA187475  Verbascum thapsus John H. Thomas 1958-9-15 7477 San Mateo 3 miles north of Woodside along Canada Rd. 122 Comment
  CDA39072  Verbascum virgatum Joseph Hannen 2013-7-15 PDR# 410 P06096014 San Mateo Redwood City; Edgewood Road. 0 Comment
  SD38891  Verbena lasiostachys Cummings, Mc Callum 1933-5-24 3726 San Mateo Open Hills in Spring Valley Comment
  JROH4257  Verbena lasiostachys var. lasiostachys John H. Thomas 1962-5-31 9895 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near Westridge end of ridge Comment
  JROH4264  Verbena lasiostachys var. lasiostachys John Hunter Thomas 1977-6-16 18745 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306773  Verbena lasiostachys var. scabrida A. D. E. Elmer July, 1903 4950 San Mateo Crystal Springs Lake Comment
  POM15417  Veronica americana Copeland 1903-6-16 s.n. San Mateo Montara Pt. [county not specified] Comment
Read comments
Jun 10 2012
  JROH4151  Veronica peregrina subsp. xalapensis John H. Thomas 1974-4-25 17218 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306601  Veronica peregrina subsp. xalapensis A. D. E. Elmer June, 1903 4268 San Mateo Crystal Springs Lake Comment
  JROH4152  Veronica persica John H. Thomas 1964-4-11 10308 San Mateo Jasper Ridge Biological Preserve, Stanford University; to the nw of the dam Comment
  JROH2425  Vicia americana subsp. americana Toni Corelli 2010-4-29 365 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 uphill 86 Comment
  RSA34061  Vicia americana var. americana A. A. Heller 1907-4-20 8449 San Mateo Lake Merced Comment
  SJSU15216  Vicia benghalensis Toni Corelli 2010-5-4 624 b San Mateo Ano Nuevo State Park, Cascade Field, Cascade Creek Trail 25 Comment
  CAS-BOT-BC157965  Vicia sativa Peter Rubtzoff 1976-6-30 8709 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon Comment
  UCSB8438  Vicia sativa subsp. sativa Haller, John 1950-4-24 San Mateo Near Atherton, 3 miles northwest of Stanford University Comment
  JEPS112937  Vicia tetrasperma Dean W. Taylor 2002-3-20 17954 San Mateo Franklin Point, along path to the coastal bluff from parking area on Highway 1 15 Comment
  UCR121557  Vicia tetrasperma George K. Helmkamp, E. A. Helmkamp 1999-6-28 4979 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  JROH424  Vinca major John H. Thomas 1977-4-8 18517 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Portola Rd. and Sand Hill Rd. Comment
  CAS-BOT-BC264046  Viola adunca Alice Eastwood 1914-3-12 3754 San Mateo San Bruno Hills Comment
  CAS-BOT-BC264048  Viola adunca John H. Thomas 1964-4-30 10354 San Mateo San Bruno Mountain in the N part of county 396 Comment
  SEINET6176297  Viola adunca Lewis S. Rose 1951-3-7 5100 San Mateo San Bruno Hills.; 0 244 Comment
  CHSC56604  Viola glabella Steven Triano 1988-5-24 169 San Mateo Ca 0.1 mi w of Old La Honda Road near Martin Creek and 0.4 air miles e of SkyLonda. 381 Comment
  POM135230  Viola glabella A. D. E. Elmer 1900-04 2263 San Mateo Kings Mtn. Comment
  RSA130595  Viola glabella Roxana S. Ferris 1920-4-26 1961 San Mateo Near mouth of canyon of Pescadero Creek. The Santa Cruz Mtn Peninsula. 244 Comment
  CAS-BOT-BC389693  Viola ocellata Mary K. Wicksten 1971-6-17 198 San Mateo Huddart Park Comment
  POM286591  Viola ocellata Lyman D. Benson 1931-2-28 2617 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  RSA130815  Viola ocellata M. N. paulson 1917-04 s.n. San Mateo Kings Mt Road. Comment
  JROH4285  Viola ocellata H. J. Dengler 1972-5-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eight feet from S.F. Creek by great boulder at redwood grove by Searsville Rocks. Comment
  RSA152239  Viola ocellata I. L. Wiggins 1925-04 1645 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  UC74937  Viola pedunculata C. F. Baker 1902-3-22 347 San Mateo South San Francisco Comment
  UC581493  Viola sempervirens H. L. Mason 1927-4-23 3668 San Mateo La Honda Comment
  CAS-BOT-BC199821  Vulpia Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo Above Hillside Blvd., South San Francisco