Search Results — 2000 specimen records retrieved (1340 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
  SEINET946036  Abronia latifolia C. F. Baker 1902-1 1741 San Mateo Piller Point. Comment
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Nov 1 2021
  CAS-BOT-BC383898  Abronia latifolia W. R. Dudley 1896-11-15 s.n. San Mateo Santa Cruz Peninsula. Spanish town Comment
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Feb 10 2022
  SEINET11941811  Abronia latifolia Unknown 1932-1 9119 San Mateo Half Moon Bay Comment
  SJSU948  Acacia longifolia C. P. Hoyt 1948-2-28 San Mateo residence, San Mateo Comment
  JROH1983  Acacia melanoxylon Toni Corelli 2005-8-3 299 b San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, along San Francisquito Creek near Dennis Martin site 71 Comment
  POM141269  Acaena pinnatifida var. californica C. F. Baker 1902-5-1 688 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC451126  Acaena pinnatifida var. californica Elizabeth McClintock 1965-3-14 s.n. San Mateo South Power Line Ridge; San Bruno Mountains Comment
  POM308816  Acaena pinnatifida var. californica I. L. Wiggins 1942-5-26 10096 San Mateo 2.5 miles S of Pescaderon, on the old Coast road Comment
  CAS-BOT-BC219606  Acanthomintha duttonii D. K. Gillespie 1930-4-21 9220 San Mateo Emerald Lake near Redwood City Comment
  CAS-BOT-BC333292  Acer macrophyllum L. R. Abrams no date on label s.n. San Mateo La HOnda Comment
  JROH163  Acer macrophyllum John Hunter Thomas 1989-5-11 24733 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road in grassy area above San Francisquito Creek and below dam 87 Comment
  RSA116908  Acer macrophyllum W. R. Dudley 1906-6-14 s.n. San Mateo San Francisquito Creek, near Cedro Cottage Stanford University Comment
  SD41293  Acer macrophyllum Delzie Demaree 1932-4-9 8984 San Mateo Streams near Gov. Rolph Estate Comment
  UCSB11438  Acer macrophyllum Olson, Jim 1962-4-15 San Mateo 1 mile east of Portola State Park on Portola State Park Road 243 Comment
  POM222810  Acer negundo subsp. californicum S. S. Berry 1909-3-31 s.n. San Mateo San Francisquito Creek. 61 Comment
  HSC2819  Acer negundo var. californicum P. A. Murphy 1965-4-15 22 San Mateo On San Mateo Rd. 2 mi. from Hillsbrough city limits Comment
  CAS-BOT-BC21592  Achillea millefolium Margaret A. Barry 1937-4-21 21 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC21595  Achillea millefolium Catherine Toschi 1963-2-23 63 :15 San Mateo San Bruno Mountains above Crocker Avenue 152 Comment
  UCSC007713  Achillea millefolium Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH465  Achyrachaena mollis John H. Thomas 1976-4-30 18101 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH475  Achyrachaena mollis John Hunter Thomas 1988-5-3 24447 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2056  Acmispon americanus var. americanus John H. Thomas 1971-5-30 15962 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2062  Acmispon americanus var. americanus John Hunter Thomas 1983-5-23 22245 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side and low-flow crossing Comment
  OBI13045  Acmispon americanus var. americanus Lewis S. Rose 1964-9-5 64071 San Mateo Emerald Lake, W of Redwood City 244 Comment
  UCD103906  Acmispon americanus var. americanus Lewis S. Rose 1964-9-5 64071 San Mateo Emerald Lake, w of Redwood City. 243 Comment
  JROH2053  Acmispon parviflorus G. C. Kimber & Lucile Roush 1918-4-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2109  Acmispon strigosus John H. Thomas 1961-4-29 9193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS127788  Acmispon wrangelianus Adam C. Schneider with C. Matt Guilliams 2013-4-7 59 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  RSA176544  Actaea rubra subsp. arguta John H. Thomas 1963-5-6 10062 San Mateo Summit of La Honda Road at Skyline Blvd. 610 Comment
  SEINET8382562  Adelinia grandis L. E. Detling 1933-3-30 1121 San Mateo Skyline Blvd; [State Highway 35]. Comment
  CAS-BOT-BC139954  Adenostoma fasciculatum Ned Cahill 1974-6-21 332 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH3584  Adenostoma fasciculatum var. fasciculatum Richard L. Garber 1971-7-13 40 San Mateo Jasper Ridge Biological Preserve, Stanford University 165 Comment
  JROH3591  Adenostoma fasciculatum var. fasciculatum John Hunter Thomas 1987-5-26 24317 San Mateo Jasper Ridge Biological Preserve, Stanford University 160 Comment
  JEPS59980  Adiantum aleuticum John D. Daly 1934-1 432 San Mateo upper Corte de Madera Canyon Corte de Madera Canyon Comment
  JROH85  Adiantum aleuticum Lawrence J. Winship 1974-11-16 15 San Mateo Jasper Ridge Biological Preserve, Stanford University. Among wet rocks below Searsville dam. Comment
  UC1080550  Adiantum aleuticum S. S. Tillett and I. Sternback 1956-6-25 547 San Mateo just above entrance Portola State Park (cliffs along Patterson Creek, on Middleton property) 365 Comment
  SBBG51161  Adiantum jordanii J. Doty 1969-3-27 610 San Mateo S side of St Hwy 84, ca. 500 ft W of Bridge no 35-165, ca. 6 mi E of St Hwy 1 Comment
  SEINET1908063  Aesculus californica Carl B. Wolf 1934-1 6242 San Mateo Menlo Park, in vacant area at Cambridge Ave. & Cornell Rd., N.W. of San Francisco Creek 15 Comment
  CHSC397  Agoseris apargioides V. Holt 1943-4-21 San Mateo San Mateo 30 Comment
  UC206220  Agoseris apargioides var. apargioides Katharine Brandegee 1917-6-15 San Mateo Moss Beach Moss Beach Comment
  CAS-BOT-BC46127  Agoseris heterophylla Ned Cahill 1974-4-19 142 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH487  Agoseris heterophylla Arthur Spiegler 1952-4-12 4 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  CAS-BOT-BC46172  Agoseris heterophylla W. R. Dudley 1906-5-13 s.n. San Mateo S.W. of San Mateo Comment
  CAS-BOT-BC15235  Agoseris hirsuta David D. Keck 1932-5-6 1461 San Mateo near Belmont Comment
  CAS-BOT-BC15237  Agoseris hirsuta George Oberlander 1950-6-3 1023 -A San Mateo near San Andreas Lake, San Francisco Watershed Reserve Comment
  JROH4774  Agrostis avenacea John Hunter Thomas 1982-6-7 21032 San Mateo Jasper Ridge Biological Preserve, Stanford University 108 Comment
  SJSU15804  Agrostis densiflora Toni Corelli 2015-5-3 1192 San Mateo Northern edge of Fitzgerald Marine Reserve, Moss Beach also know as Vallemar Bluff 14 Comment
  JEPS129817  Agrostis exarata John Rawlings, Ken Hickman 2017-6-3 2095 B San Mateo Highway 92 west on ramp to Highway 280 north (Caltrans Right Way). Comment
  JROH5795  Agrostis microphylla John Rawlings, Nona Chiariello 2016-6-14 1891 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 at contact drainage 184 Comment
  JROH4802  Agrostis pallens John Rawlings 2011-6-14 1073 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill side of Trail 5. 119 Comment
  JROH4160  Ailanthus altissima John Hunter Thomas 1992-5-26 25353 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along SLAC corridor 82 Comment
  JEPS101122  Aira caryophyllea Dean W. Taylor 1991-5-20 11787 San Mateo coastal bluffs near south bank of Pescadero Creek at Highway 1 9 Comment
  JROH4833  Aira caryophyllea John Hunter Thomas 1988-4-28 24421 San Mateo Jasper Ridge Biological Preserve, Stanford University 160 Comment
  JROH4836  Aira caryophyllea John Rawlings 2013-4-19 1152 San Mateo Jasper Ridge Biological Preserve, Stanford University. Mossy verge of Trail 11 through chaparral. 144 Comment
  JROH6210  Aira caryophyllea John Rawlings 2014-3-25 1241 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 at the Zoology Cabin foundation site 75 Comment
  RSA320915  Aira caryophyllea Robert A. Norris 1984-3-21 4652 San Mateo Blue Blossom Hill, San Bruno Mts. 357 Comment
  SEINET7594518 Image available Aira caryophyllea A. D. E. Elmer 1903-1 4705 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC138232  Aira caryophyllea var. caryophyllea A. D. E. Elmer 1903-5-1 4705 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC138240  Aira caryophyllea var. caryophyllea Margaret A. Barry 1937-5-15 105 San Mateo Coal Mine Ridge. 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
  SJSU15968  Aira praecox John Rawlings, Toni Corelli 2016-5-27 1848 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  UC814494  Alisma plantago-aquatica Lewis S. Rose 1941-9-13 41440 San Mateo stream bottom San Mateo Canyon 60 Comment
  JROH4570  Allium John Hunter Thomas 1983-6-2 22333 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4542  Allium amplectens John Hunter Thomas 1980-5-6 19928 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC447499  Allium amplectens Le Roy Abrams 1902-5-8 2431 San Mateo Standford University Comment
  SEINET8534224 Image available Allium dichlamydeum A. A. Heller 1907-5-23 8564 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  RSA40253  Allium falcifolium L. S. Rose 1948-5-16 48111 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  UC843252  Allium falcifolium Lewis S. Rose 1935-4-16 35095 San Mateo w Redwood City; Emerald Lake Comment
  CAS-BOT-BC469034  Allium falcifolium Robert F. Hoover 1941-4-23 4907 San Mateo Redwood City Hills Comment
  CAS-BOT-BC471097  Allium lacunosum var. lacunosum H. L. Dale 1920-6-1 s.n. San Mateo Near Menlo Park Comment
  CAS-BOT-BC132032  Allium peninsulare var. franciscanum A. D. E. Elmer 1903-6-1 4595 San Mateo San Mateo Comment
  JROH4564  Allium peninsulare var. franciscanum John H. Thomas 1968-5-22 14461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC474301  Allium unifolium Philip C. Wheeler 1965-5-18 s.n. San Mateo Upper Colma Canyon near creek Comment
  JROH1325  Alnus rhombifolia John H. Thomas 1965-1-29 10550 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  JROH1327  Alnus rhombifolia John H. Thomas 1971-5-30 15981 San Mateo Jasper Ridge Biological Preserve, Stanford University; along creek below dam Comment
  SEINET7594710 Image available Alopecurus geniculatus Lewis S. Rose 1932-1 32209 San Mateo San Bruno, San Bruno.; 0 183 Comment
  JROH173  Amaranthus John H. Thomas 1976-10-16 18420 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 fire place ruins downstream. Comment
  SBBG39514  Amaranthus deflexus L. S. Rose 1970-7-26 70079 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  UCR266159  Amaranthus deflexus A. C. Sanders 2015-12-27 41888 San Mateo San Francisco Peninsula, San Bruno, along Hwy 82 between 380 Fwy and San Bruno Ave. 15 Comment
  SJSU7593  Amaranthus deflexus C. A. Staicer 1976-9-26 San Mateo 91 Atherton Lane, Atherton Comment
  UCD97767  Amaranthus retroflexus John Thomas Howell 1978-7-18 53187 San Mateo McClellan residence, 1356 Bernal Ave., Burlingame. 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
  OBI49178  Ambrosia chamissonis Lewis S. Rose 1938-8-14 38226 San Mateo El Granada 3 Comment
  RSA57518  Ambrosia chamissonis C. F. Baker 1902-10-1 1745 San Mateo Pillar Point. Comment
  SD39990  Ambrosia chamissonis Edith A. Purer 1932-7-18 4011 San Mateo Half Moon Bay on sand dunes Comment
  RSA123305  Ambrosia chamissonis N. K. Carlson 1935-7-5 120 San Mateo [Unspecified] 0 Comment
  SEINET11855123  Ambrosia chamissonis L. S. Rose 1935-1 San Mateo Granada 3 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
  UCSC007718  Anagallis arvensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH3371  Anagallis minima John H. Thomas 1968-4-6 14280 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC45194  Anaphalis margaritacea Saichi Kawahara 1968-7-29 459 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  CAS-BOT-BC45186  Anaphalis margaritacea Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain, NW Radio Road Comment
  CAS-BOT-BC391913  Anemone grayi J. H. Thomas 1954-4-15 3905 San Mateo About 1 1/2 mile SW of Searsville Lake 228 Comment
  RSA84449  Anemone grayi H. L. Mason 1927-4-24 3698 San Mateo La Honda Comment
  CAS-BOT-BC221453  Angelica hendersonii Saichi Kawahara 1968-6-15 427 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  UC174202  Angelica hendersonii Katharine Brandegee San Mateo Tobin Comment
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Apr 5 2008
  CAS-BOT-BC273173  Anisocarpus madioides Ira L. Wiggins 1925-4-1 1663 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  CAS-BOT-BC273186  Anisocarpus madioides C. F. B. 1902-5-10 300 San Mateo Kings Mountain Comment
  UC830895  Anisocarpus madioides Lewis S. Rose 1941-7-2 41287 San Mateo Kings Mountain 548 Comment
  UCD128894  Anisocarpus madioides W. A. Harvey; J. M. Tucker 1948-6-29 1704 San Mateo beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC280638  Anthoxanthum occidentale L. R. A. 1902-1-7 2258 San Mateo Kings Mountain Comment
  CAS-BOT-BC280639  Anthoxanthum occidentale L. R. A. 1902-1-7 2258 San Mateo Kings Mountain Comment
  UCD85325  Anthoxanthum occidentale August L. Hormay 1932-3-6 s.n. San Mateo Pescadero Blumequist Mill - Redwood belt. Comment
  JROH202  Anthriscus caucalis John Hunter Thomas 1981-4-21 20456 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3600  Aphanes occidentalis John H. Thomas 1963-4-17 10036 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near the "riders shack" at the Searsville end of the ridge Comment
  JROH3605  Aphanes occidentalis John H. Thomas 1977-2-20 18465 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC451568  Aponogeton distachyos M. P. Johnson 1967-2-18 10014 San Mateo On east side of State Highway 5, 4.6 miles south of southern boundary of San Francisco. Comment
  CAS-BOT-BC392063  Aquilegia eximia A. D. E. Elmer 1903-6-1 4271 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC405895  Aquilegia formosa Walter Knight; Irja Knight 1965-4-4 1009 San Mateo Bitter-cherry Ravine on north facing slope in chaparral. Comment
  SD1681  Aquilegia formosa Ulysses S. Grant IV June 1925 San Mateo La Honda Comment
  RSA523415  Aquilegia formosa var. truncata G. H. True 1936-4-5 388 San Mateo Canyon between San Gregorio and Pescadero 152 Comment
  JEPS90202  Arabis blepharophylla Dean W. Taylor 1989-3-30 10187 San Mateo crest of ne ridge of San Bruno Mountain ((ridge separating Guadalupe Valley from Vistacion Valley), Right-of-way of eastern-most set of PG&E high-voltage powerlines crossing mtn); Santa Cruz Mountains, San Bruno Mountain Comment
  JROH1436  Arabis blepharophylla John Hunter Thomas 1984-4-2 23273 3 G 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
  CAS-BOT-BC17325  Arabis blepharophylla W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. 1st high hill between Salado Valley and Colma. Comment
  CAS-BOT-BC17327  Arabis blepharophylla W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. Top of hill, head of Baden Crek. Comment
  RSA0125763  Arabis glabra C. B. Wolf 1927-7-14 609 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC304414  Arbutus menziesii A. D. E. Elmer 1903-5-1 4515 San Mateo Searsville Lake Comment
  RSA15205  Arbutus menziesii C. B. Wolf 1926-10-19 88 San Mateo Near La Honda. Santa Cruz Mts. Comment
  CAS-BOT-BC24163  Arctostaphylos John H. Thomas 1967-2-9 12403 San Mateo Montara Mountain in Northern part of county. Between Pacifica and Montara. Comment
  SEINET11989289  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  SEINET11988250  Arctostaphylos andersonii Unknown 1959-1 323 San Mateo 1.2 mi from junction of CA 5 on Kings Mt. Road Comment
  SEINET11987183  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I. 1981-1 3931 San Mateo Tilden Botanic Garden, Berkeley, originally from San Bruno Mt Comment
  RSA303424  Arctostaphylos auriculata J. R. Shevock 1971-2-27 702 San Mateo 5 mi-Jct, Skyline Rd; So of Calif. Hwy 92. 457 Comment
  CAS-BOT-BC23501  Arctostaphylos crustacea Brandegee 1889-4-1 8 San Mateo Redwood City Comment
  CAS-BOT-BC23512  Arctostaphylos crustacea C. F. Baker 1902-3-18 327 San Mateo King's Mountain Comment
  CAS-BOT-BC23515  Arctostaphylos crustacea John Thomas Howell 1924-2-23 261 San Mateo King Mt. Comment
  CAS-BOT-BC23517  Arctostaphylos crustacea A. D. E. Elmer 1903-5-1 4558 San Mateo King Mt. Comment
  CAS-BOT-BC23550  Arctostaphylos crustacea Alice Eastwood 1922-5-30 11335 San Mateo Crystal Springs lakes on hills. Comment
  SEINET5788098 Image available Arctostaphylos crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain, CA Comment
  SEINET11989198  Arctostaphylos crustacea E. McClintock, Knight, W.; Knight, I. 1982-1 4645 San Mateo San Pedro County Park, near Pacifica Comment
  JROH1932  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-7-5 15665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1942  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1983-7-20 22893 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG83928  Arctostaphylos crustacea subsp. crustacea R. Gankin 1959-2-22 322 San Mateo 2.8 mi from jct with Hwy 5 on King's Mtn Rd 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-BC24493  Arctostaphylos imbricata Marian L. Campbell 1915-6-17 s.n. San Mateo San Bruno Hills. Comment
  UCD50867  Arctostaphylos imbricata R. F. Hoover 1964-4-24 8742 San Mateo San Bruno Mt. Comment
  UCR58357  Arctostaphylos imbricata Walter Knight, I. Knight 1980-6-14 3747 San Mateo Original from San Bruno Mt. (grown at Tilden Botanic Garden, Berkeley) Comment
  RSA502351  Arctostaphylos imbricata D. W. Taylor 1988-4-29 9584 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22deg. W of summit (as depicted on San Francisco South 7.5' USGS quadrangle) 371 Comment
  UCD51770  Arctostaphylos montaraensis Roman Gankin; W. R. Hildreth 1966-5-17 738 San Mateo Southeast-facing slope of Montara Mountain. Comment
  POM131773  Arctostaphylos regismontana C. F. Baker 1902-1-15 271 San Mateo Kings Mountain. West side of King's Mountain. Comment
  POM367228  Arctostaphylos regismontana L. S. Rose 1938-2-23 38083 San Mateo Kings Mountain. 640 Comment
  RSA636750  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24636 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120840  Arctostaphylos regismontana Beryl Schreiber 1938-10-16 2564 San Mateo King's Mountain Santa Cruz Quadrangle Comment
  UC1120847  Arctostaphylos regismontana A. E. Wieslander 1936-8-21 658 San Mateo Sierra Moreno Mt. Santa Cruz Quadrangle Comment
  UC1120849  Arctostaphylos regismontana A. E. Wieslander 1939-7-16 896 San Mateo Kings Mt.-Sierra Moreno Santa Cruz Quadrangle Comment
  UC1543114  Arctostaphylos regismontana Donald G. Nelson 1938-11-13 592 San Mateo on Skyline Blvd n summit of Kings Mountain Comment
  UC876530  Arctostaphylos regismontana Lewis S. Rose 1939-2-26 39015 San Mateo Kings Mountain Kings Mountain (type locality) 670 Comment
  CAS-BOT-BC44736  Arctostaphylos regismontana Robert F. Hoover 1941-2-12 4768 San Mateo King's Mountain Comment
  CAS-BOT-BC44673  Arctostaphylos sensitiva W. R. Dudley 1897-12-29 s.n. San Mateo Butano Ridge, between Butano & Pescadero Crs. - Santa Cruz Peninsula Comment
  POM132204  Arctostaphylos tomentosa subsp. crustacea A. D. E. Elmer 1903-05 4558 San Mateo Kings Mountain. Comment
  RSA636839  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24649 San Mateo NW side of Montara Mtn. 150 Comment
  UC83011  Arctostaphylos tomentosa subsp. crustacea C. F. Baker 1902-3-18 328 San Mateo bay side of mt. King's Mountain Comment
  CAS-BOT-BC46833  Arctostaphylos uva-ursi Arthur Menzies 1963-3-10 s.n. San Mateo San Bruno Hills Comment
  SBBG21954  Arctostaphylos uva-ursi R. F. Thorne with P. C. Everett 1963-6-9 32218 San Mateo top of San Bruno Mtn, near the TV Tower 335 Comment
  SJSU6081  Arctostaphylos uva-ursi S. H. Casey 1969-5-18 256 San Mateo near summit of San Bruno Mt Comment
  UCD52146  Arctostaphylos uva-ursi Walter and Irja Knight; Elizabeth McClintock 1981-7-3 4492 San Mateo Near rocky outcrop at Kamchatka Point, San Bruno Mountain. San Mateo County. Comment
  SEINET11987228  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 3891 San Mateo Tilden Botanic Garden, Berkeley, orig. from San Bruno Mountain Comment
  CAS-BOT-BC102179  Arctotheca Paul Reedberg 1988-4-27 s.n. San Mateo Adjacent to Camp Silverspot. San Bruno Mountains Comment
  POM268911  Armeria maritima subsp. californica Lyman Benson 1930-6-14 2149 San Mateo San Gregorio. 30 Comment
  SD39619  Armeria maritima subsp. californica Edith A. Purer 1933-7-27 5358 San Mateo Pigeon Point. Comment
  UC1036426  Artemisia californica G. B. Rossbach 1955-7-26 616 San Mateo 3 mi s San Francisco City/County line (along Route 1); northern San Mateo County Comment
  CAS-BOT-BC93932  Artemisia douglasiana R. E. Frenkel 1963-12-7 333 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.8 mile south-west of Spring Valley Road, at Fire Warden's Gate Comment
  CAS-BOT-BC93935  Artemisia douglasiana Gordon H. True 1937-7-23 803 San Mateo Along Salada Beach - Skyline Blvd. Road Comment
  CAS-BOT-BC93937  Artemisia douglasiana Ira L. Wiggins 1975-8-5 22175 San Mateo Bed of San Francisquito Creek, ca 100 m above Pope Street bridge, San Mateao County side of Santa Clara-San Mateo Comment
  UCSC007719  Artemisia douglasiana Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SEINET191613  Artemisia heterophylla Lewis S. Rose 1938-8-18 San Mateo San Mateo County: Canyon Bottom. 30 Comment
  CAS-BOT-BC93638  Artemisia pycnocephala C. B. Wolf 1930-11-5 1062 San Mateo 4 miles south of Pescadero 7 Comment
  CAS-BOT-BC93639  Artemisia pycnocephala C. B. Wolf 1930-11-5 1062 San Mateo 4 miles south of Pescadero 7 Comment
  RSA417371  Artemisia pycnocephala Edith A. Purer 1933-7-27 5387 San Mateo 2 mi. S of Pigeon Pt. Comment
  UCR240608  Artemisia pycnocephala T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3528 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
  RSA184853  Asclepias fascicularis L. S. Rose 1965-8-27 s.n. San Mateo Emerald Lake, West of Redwood City 122 Comment
  UCR121548  Aster chilensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 5009 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  UCR254760  Aster chilensis Peter Rubtzoff 1975-9-11 8376 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  UCR254761  Aster chilensis Peter Rubtzoff 1974-12-17 7944 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  RSA417642  Aster chilensis Edith A. Purer 1933-8-25 5521 San Mateo Spring Valley. Comment
  SEINET946262  Asteraceae L. S. Rose 1948-1 48235 San Mateo Hills W. of Belmont 183 Comment
  UC136769  Astragalus douglasii var. douglasii C. F. Baker 1903-6-30 3358 San Mateo Pillar Point Comment
  JROH1986  Astragalus gambelianus Duncan M. Porter 1960-5-5 676 B San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 Comment
  JROH1990  Astragalus gambelianus John H. Thomas 1968-5-3 14448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1995  Astragalus gambelianus John Hunter Thomas 1982-4-28 20876 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1997  Astragalus gambelianus John Hunter Thomas 1992-4-29 25170 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET948337  Astragalus gambelianus Lewis S. Rose 1956-1 56113 San Mateo Skyline Blvd., hills w. of San Mateo 183 Comment
  CAS-BOT-BC177975  Astragalus nuttallii var. virgatus R. S. Ferris 1921-5-29 2185 San Mateo Pescadero, Pebble Beach Comment
  CAS-BOT-BC193096  Astragalus pycnostachyus var. pycnostachyus W. R. Dudley 1894-4-21 s.n. San Mateo Field near Crystal Springs Reservoir Comment
  CAS-BOT-BC68677  Athyrium filix-femina var. californicum Elizabeth McClintock; Carlyn Halde; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain - Lower part of Colma Canyon Comment
  CHSC57076  Atriplex leucophylla Steven Triano 1988-5-24 201 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  SD40192  Atriplex leucophylla Edith A. Purer 1932-7-18 4013 San Mateo Half Moon Bay. Comment
  RSA478440  Atriplex rosea L. M. Booth 1932-10-29 2112 San Mateo S. San Francisco. 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
  SJSU16016  Avena barbata John Rawlings, Ken Hickman 2016-5-26 1812 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
  CAS-BOT-BC146000  Avena fatua Ira L. Wiggins 1975-4-17 22144 San Mateo Northeast side of S.P. right of way, between Willow Road and San Francisquito Creek, Menlo Park. Comment
  JROH4843  Avena fatua John H. Thomas 1973-4-14 16559 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4846  Avena fatua W. Lennihan 1990-4-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across parking lot from picnic tables. Comment
  UCD56092  Avena strigosa T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio. Comment
  JROH2  Azolla John Hunter Thomas 1980-11-12 20167 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  CAS-BOT-BC68326  Azolla filiculoides Malcom A. Nobs; S. Galen Smith 1949-8-26 1593 San Mateo Mouth of Pescadero Creek Comment
Read comments
Oct 29 2021
  UC202031  Azolla filiculoides Dr. P. B. Kennedy 1917-4-29 San Mateo Colma Creek in San Francisco Comment
  UCD136025  Azolla microphylla Malcolm A. Nobs; S. Galen Smith 1949-8-26 1593 San Mateo At the mouth of Pescadero Creek. Comment
  RSA18494  Baccharis douglasii C. B. Wolf 1927-7-14 626 San Mateo 1 mile west of summit of La Honda Grade Comment
  JROH535  Baccharis glutinosa John H. Thomas 1974-8-3 17497 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC750699  Baccharis glutinosa Lewis S. Rose 1946-7-14 46220 San Mateo Searsville Lake margin Searsville Lake 68 Comment
  CAS-BOT-BC99526  Baccharis pilularis Fred Hemphill 1973-4-22 792 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC99533  Baccharis pilularis David D. Keck 1931-10-5 1283 San Mateo 1 mile north of Salada Beach Comment
  RSA128829  Baccharis pilularis W. R. Dudley 1894-12-13 s.n. San Mateo Above Preston's, La Honda Road Comment
  RSA136310  Baccharis pilularis John H. Thomas 1949-10-16 1144 San Mateo Along sandstone bluffs, just north of outlet of San Gregorio Creek Comment
  JROH5742  Baccharis pilularis subsp. pilularis John Rawlings 2015-11-7 1648 San Mateo Jasper Ridge Biological Preserve, Stanford University; 55 yards up Rd E from its Trail 14 intersection. 122 Comment
  CAS-BOT-BC16622  Barbarea orthoceras Fred Hemphill 1973-3-1 703 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16625  Barbarea orthoceras Fred Hemphill 1973-3-17 712 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16627  Barbarea orthoceras Fred Hemphill 1973-4-22 736 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16642  Barbarea orthoceras W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. Near head of San Andreas Lake. Comment
  JROH1443  Barbarea orthoceras John H. Thomas 1973-6-15 16843 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1454  Barbarea orthoceras John Hunter Thomas 1989-4-20 24643 San Mateo Jasper Ridge Biological Preserve, Stanford University; to below the dam Comment
  UC10249  Barbarea orthoceras J. Burtt Davy June 21-23, 1893 1147 San Mateo Pilarcitos Lake and Canon Comment
  UCD165020  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7961 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA92820  Barbarea orthoceras P. H. Raven 1951-3-12 2744 San Mateo Summit ridge of the San Bruno Mountains. Comment
  UCR279901  Barbarea orthoceras var. dolichocarpa Peter Rubtzoff 1975-5-21 7962 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  POM272597  Barbarea vulgaris Lyman Benson 1929-3-15 1009 San Mateo Bank of San Francisquito Creek at Stanford Isolation Hospital. Comment
  JROH3914  Bellardia trixago John H. Thomas 1974-5-19 17382 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  UC1559199  Bellardia trixago Michelle T. Seidl 1989-3-13 MTS 2516 b San Mateo just above, n side Linda Mar Beach and Highway 1 (along Roberts Road, Pacifica); Pacifica Comment
  UCR141422  Bellardia trixago June Latting 1975-6-8 s.n. San Mateo San Francisco Bay Region, Skyline Drive at Crystal Springs Reservoir 122 Comment
  UCSB42899  Bellardia trixago deGrange, J. 1982-5-15 San Mateo Ten yards west of junction of Hallmark and Comstock Streets; Bellmont; Fifty yards east of Crystal Springs Reservoir 243 Comment
  CAS-BOT-BC100194  Bellis perennis John H. Thomas 1974-5-7 17326 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school Comment
  CAS-BOT-BC75866  Berberis pinnata W. R. Dudley 1896-11-14 s.n. San Mateo Santa Cruz Peninsula. Hill west of Crystal Springs Lake. Comment
  CAS-BOT-BC75880  Berberis pinnata George Oberlander 1949-4-17 70 San Mateo San Francisco Watershed Reserve. Near Pilarcitos Lake. Comment
  CAS-BOT-BC75881  Berberis pinnata Art Menzies; Barbara Menzies 1965-3-14 s.n. San Mateo San Bruno Mountain. Reservoir Hill. Comment
  CDA3006  Beta vulgaris E. L. Labadie 1961-10-24 San Mateo Railroad tracks at Chestnut Street, Redwood City. 0 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
  UC42859  Blechnum spicant F. P. McLean May 1873 San Mateo Pescadero Comment
  CAS-BOT-BC389681  Bloomeria crocea Mary Wicksten 1969-6-25 s.n. San Mateo Huddart Park Comment
  CAS-BOT-BC31088  Bolboschoenus maritimus Ira L. Wiggins 1980-8-29 22258 San Mateo Bed and lower bank of San Francisquito Creek, ca 200 m upstream from Pope St Bridge Comment
  CAS-BOT-BC31089  Bolboschoenus maritimus Ira L. Wiggins 1973-7-29 22056 San Mateo Sandy bed of of San Francisquito Creek, ca 80 m upstream from Pope St Bridge Comment
  CAS-BOT-BC95343  Bowlesia incana Walter Knight; Irja Knight 1965-3-28 1107 San Mateo Trillium Gulch, San Bruno Mountain Comment
  CAS-BOT-BC389730  Boykinia occidentalis J. Lovelle 1973-7-8 9 San Mateo Menlow [Menlo] Pk. Comment
  JROH4854  Brachypodium distachyon W. Lennihan 1980-5-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; eastern draw trail to San Francisquito Creek, about 1/3rd way down Comment
  CDA17126  Brachypodium sylvaticum K. Melo 2003-12-1 PDR 1387956 San Mateo San Francisco Peninsula; Hwy 84 at Grandview Terrace and Schilling Lake. Martin Creek drainage. 0 Comment
  SEINET251703 Image available Brachypodium sylvaticum John Beall 2003-12-4 San Mateo Santa Cruz Mountains, Woodside on Hwy 84 at Grandview Dr., about 1 mile from Skyline Road summit. 427 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-BC145323  Briza minor Margaret A. Barry 1937-5-15 125 San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC145335  Briza minor Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  JROH4879  Briza minor John H. Thomas 1963-5-15 10090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4882  Briza minor John H. Thomas 1968-4-19 14298 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
  SEINET10514402  Briza minor Adolph D. E. Elmer Elmer 4912 San Mateo Crystal Springs Lake. Comment
  SEINET10868322  Briza minor Alan A. Beetle 1941-4-20 Beetle 1738 San Mateo Near San Carlos, rich heavy loam, in open field. Comment
  SEINET11675202  Briza minor Unknown 1932-1 9112 San Mateo above Spring Valley Lakes Comment
  SEINET3884838  Brodiaea coronaria var. macropoda K. Harper 1984-4-25 84 -3 San Mateo Along crest of Jasper Ridge, Research Preserve, Stanford University.; 0 Comment
  SEINET10932599  Brodiaea elegans Walter 1919-6-9 Walter s.n. 1919 San Mateo Woodside Comment
  CAS-BOT-BC484348  Brodiaea elegans subsp. elegans Otto M. Sokol 1953-5-29 114 San Mateo Near Sharon Estates along Sand Hill Road Comment
  CAS-BOT-BC484349  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
  JROH4590  Brodiaea terrestris subsp. terrestris John H. Thomas 1975-5-26 17918 a San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC483182  Brodiaea terrestris subsp. terrestris W. R. Dudley 1906-5-8 s.n. San Mateo By road south of Crystal Springs Lake Comment
  CAS-BOT-BC483187  Brodiaea terrestris subsp. terrestris Elizabeth McClintock; Philip C. Wheeler 1967-6-11 s.n. San Mateo Radio Road, San Bruno Mountain Comment
  POM88018  Bromus berteroanus Le Roy Abrams 1902-5-4 2409 San Mateo Woodside. Comment
  UCD57754  Bromus berteroanus Margaret Joy Marshall 1977-4-9 s.n. San Mateo San Mateo. Canada and Edgewood Rd. Comment
  CDA7725  Bromus carinatus D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  POM319876  Bromus carinatus Barbara Shervanick 1973-4-1 807 San Mateo San Bruno Mt. at first summit at end of Crocker Rd. Comment
  CAS-BOT-BC149020  Bromus carinatus var. carinatus R. E. Frenkel 1964-8-21 758 San Mateo On Portola Ridge Road, 0.7 mile north of Sawyer Ridge Road, SFWD. 320 Comment
  CAS-BOT-BC149024  Bromus carinatus var. carinatus Dean Wm. Taylor 1988-3-30 9492 San Mateo Santa Cruz Mountains. San Bruno Mountains, northern slope of southeast ridge of the mountain, near the ridgecrest. 237 Comment
  JROH4904  Bromus carinatus var. carinatus W. Lennihan 1990-4-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Going north on fire road from Goya, before serpentine, 40 yards to right up small hill, middle of oaks, 50 yds from turn by blue oaks. Comment
  SEINET943617  Bromus carinatus var. carinatus Robert A. Norris 1984-1 4656 San Mateo Blue Blossom Hill, San Bruno Mountains 365 Comment
  CAS-BOT-BC148767  Bromus carinatus var. marginatus W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Between Colma and Lake Merced. Comment
  RSA120971  Bromus catharticus J. T. Howell 1956-5-23 31446 San Mateo Roadside, El Camino Real at Atherton Ave., Menlo Park. Comment
  JROH5628  Bromus diandrus John Rawlings 2013-4-9 1225 San Mateo Jasper Ridge Biological Preserve, Stanford University. Where the brick path ends at the visitor parking lot of the Sun Field Station. 120 Comment
  CAS-BOT-BC155132  Bromus hordeaceus H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Just east of Jasper on south side of Woodside. 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
  JROH4920  Bromus hordeaceus John H. Thomas 1967-5-12 12889 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5614  Bromus hordeaceus John Rawlings 2014-4-11 1217 San Mateo Jasper Ridge Biological Preserve, Stanford University; in road G in hard-packed dirt, immediately north of its intersection with Rd. J. 105 Comment
  UCD58965  Bromus madritensis Rimo Bacigalupi; L. Heckard 1961-5-14 7700 San Mateo Near southern end of Crystal Springs Lake. Along Canada Road. 95 Comment
  JROH4952  Bromus madritensis subsp. rubens W. Lennihan 1990-4-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Escobar - across trail, on edge, from hybrid oak - about 4' further along the trail. Comment
  RSA107096  Bromus marginatus L. S. Rose 1956-7-2 56115 San Mateo Skyline Blvd. hills w. of San Mateo 183 Comment
  RSA320908  Bromus rubens Robert A. Norris 1984-3-21 4655 San Mateo Blue Blossom Hill, San Bruno Mts. 366 Comment
  OBI22458  Bromus sitchensis Lewis S. Rose 1963-4-27 63003 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  CAS-BOT-BC185395  Bromus vulgaris W. R. Dudley 1900-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Stage road La Honda Summit. 518 Comment
  JEPS26836 Image available Bromus vulgaris Rimo Bacigalupi with L. R. Heckard 1961-5-14 7699 San Mateo about 3/4 mi below and se of Stone Dam Reservoir (canyon of Pilarcitos Creek, w base of Cahill Ridge); Cahill Ridge 152 Comment
  UCD60240  Bromus vulgaris S. S. Tillett; I. Sternback 1956-6-24 534 San Mateo Middleton properton, behind (n.) Portola Camp Store, just outside Portola State Park. 396 Comment
  CAS-BOT-BC233705  Buddleja davidii J. H. Thomas 1958-6-26 7288 San Mateo Along Skyline Blvd., about 0.3 miles north of Pulgas water temple. 91 Comment
  UC1195194  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 R.R. tracks Redwood City (near Maple St.) 7 Comment
  CHSC22764  Cakile edentula Robert A. Schlising; Glenn Keator 1962-2-3 2048 San Mateo Coast Ranges. Along area at Gazos Creek and Highway 1. Comment
  SD129649  Cakile maritima Donald G. Nelson 1938-7-28 581 San Mateo Moss Beach Comment
  UC1301004  Cakile maritima Helen K. Sharsmith 1963-3-23 5251 San Mateo near Half Moon Bay; San Francisco Bay Region Comment
  CAS-BOT-BC36952  Cakile maritima var. maritima Betty J. Hammerly 1942-6-15 439 San Mateo Ocean bluffs near mouth of Pescadero Creek. Comment
  CAS-BOT-BC36955  Cakile maritima var. maritima Reed Clark Rollins 1941-7-19 2962 San Mateo Half Moon Bay, along the beach. Comment
  CAS-BOT-BC36957  Cakile maritima var. maritima Saichi Kawahara 1968-6-15 439 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1. 3 Comment
  UC1131351  Calamagrostis nutkaensis H. S. Yates 1935-5-8 5215 San Mateo 2 mi s Pescadero; Santa Cruz Quadrangle Comment
  UC203510  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5040 San Mateo San Pedro Comment
  JROH3327  Calandrinia ciliata John H. Thomas 1977-4-8 18516 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389677  Calandrinia ciliata Maryann Danielson 1967-4-16 s.n. San Mateo San Francisco Watershed near water temple Comment
  JROH4595  Calochortus albus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4597  Calochortus albus John H. Thomas 1967-6-1 12976 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4610  Calochortus albus John Hunter Thomas 1981-5-25 20633 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA10360  Calochortus albus H. A. Barker 1926-5-1 592 San Mateo Kings Mt. Comment
  CAS-BOT-BC492206  Calochortus albus Margaret A. Barry 1937-5-15 135 San Mateo Steep south slopes and woods on Coal Mine Ridge Comment
  CAS-BOT-BC492223  Calochortus albus Elsie Zeile 1909-5-20 s.n. San Mateo Burlingame Comment
  SD39096  Calochortus albus Marie Cummings 1933-5-8 79 San Mateo Steven's Creek. Comment
  JROH4615  Calochortus argillosus H. L. Mason 1921-6-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4617  Calochortus argillosus John H. Thomas 1961-6-14 9539 San Mateo Jasper Ridge Biological Preserve, Stanford University; in "parking area" at Searsville end Comment
  JROH4623  Calochortus argillosus John H. Thomas 1974-6-30 17458 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC648348  Calochortus luteus Marion Ownbey and Ruth P. Ownbey 1938-7-7 1699 San Mateo above Searsville Lake; Santa Cruz Mountains Comment
  CHSC59836  Calochortus tolmiei Jan M. Karaz 1979-5-27 69 San Mateo 2.5 m north on Kings Mountain Road at the entrance to Huddart Park. 10 Comment
  CAS-BOT-BC389721  Calochortus tolmiei M. K. Wicksten 1971-6-16 39 San Mateo Huddart Prk. Comment
  CAS-BOT-BC493995  Calochortus tolmiei Le Roy Abrams 1902-5-20 s.n. San Mateo King's Mountain Comment
  CAS-BOT-BC132540  Calochortus umbellatus M N. Paulson 1915-4-10 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC494042  Calochortus venustus L. R. Abrams 1930-6-1 1499 San Mateo Serpentine back of Redwood City Comment
  CAS-BOT-BC270670  Calycadenia multiglandulosa L. S. Rose 1956-7-2 56120 San Mateo Emerald Lake, hills W of Redwood City 182 Comment
  UC662579  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo hills w Redwood City; Emerald Lake 120 Comment
  RSA132468  Calycadenia multiglandulosa subsp. robusta John H. Thomas 1959-8-22 8077 San Mateo Jasper Ridge, about 5 miles SW of Palo Alto 152 Comment
  CAS-BOT-BC224656  Calystegia purpurata subsp. purpurata A. D. E. Elmer 1903-6-1 4299 San Mateo Pescadero Comment
  CAS-BOT-BC224662  Calystegia purpurata subsp. purpurata Fred Hemphill 1973-5-6 764 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC224667  Calystegia purpurata subsp. purpurata Paul Arnaud 1941-5-3 s.n. San Mateo Redwood City, Hills, Jefferson Avenue Comment
  CHSC56978  Calystegia soldanella Steven Triano 1988-5-24 191 San Mateo W of Hwy 1 ca 0.2 mi n of Pescadero Road. 9 Comment
  SD38590  Calystegia soldanella Edith A. Purer 1933-7-27 5377 San Mateo 2.0 miles south of Pigeon Point. Comment
  UC1594174  Calystegia subacaulis subsp. subacaulis Jerry Powell 1991-6-1 1605 San Mateo Edgewood County Park. Comment
  RSA369186  Camassia leichtlinii subsp. suksdorfii E. S. Spalding 1923-8-3 s.n. San Mateo Pulgas Tunnel, east side. Comment
  CAS-BOT-BC160321  Camissoniopsis cheiranthifolia subsp. cheiranthifolia A. D. E. Elmer 1903-7-1 4942 San Mateo San Pedro Comment
  CAS-BOT-BC160328  Camissoniopsis cheiranthifolia subsp. cheiranthifolia A. D. E. Elmer 1903-7-1 4942 San Mateo San Pedro Comment
  CAS-BOT-BC160329  Camissoniopsis cheiranthifolia subsp. cheiranthifolia John H. Thomas 1963-5-20 10108 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  UC306527  Camissoniopsis micrantha A. D. E. Elmer May 1903 4813 San Mateo San Pedro Comment
  UC874076  Camissoniopsis micrantha John Thomas Howell 1938-5-1 13773 San Mateo Colma Canyon Comment
  RSA95472  Campanula prenanthoides L. S. Rose 1953-7-27 53054 San Mateo Kings Mountain, Redwood Forest. 610 Comment
  SEINET10463042  Campanula prenanthoides Wicksten 1971-7-7 WICKSTEN 155 San Mateo Huddart Park, road cut along road to family campground Comment
  SEINET10463047  Campanula prenanthoides Leitholt 1894-7-28 LEITHOLT s.n. San Mateo La Honda Road Comment
  SEINET10463189  Campanula prenanthoides Gray 1872-1 GRAY s.n. San Mateo SANTA CRUZ REDWOODS Comment
  SEINET10939009  Campanula prenanthoides William R. Dudley 1894-7-7 Dudley s.n. San Mateo Bear Gulch Comment
  SBBG51277  Capsella bursa-pastoris J. Doty 1969-3-24 582 San Mateo N side of Embarcadero Rd, just W of W boundary of Byxbee Marshlands Wildlife Preserve, Menlo Park 1 Comment
  CAS-BOT-BC37673  Cardamine californica John H. Thomas 1958-2-15 6982 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 182 Comment
  HSC23887  Cardamine californica Mary Katherine Wicksten 1971-7-7 158 San Mateo Huddart Park, along road to family campground. Comment
  JROH1482  Cardamine californica John H. Thomas 1967-4-28 12727 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3903  Cardamine californica D. D. Davis 1903-4-6 s.n. 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
  JROH1499  Cardamine oligosperma John Hunter Thomas 1983-4-5 21322 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  UC1056982  Cardamine oligosperma H. L. Mason 1927-4-23 3695 San Mateo Pescadero Creek near Bloomquist Mill; Pescadero Creek near Bloomquist Mill Comment
  UCD164673  Cardamine oligosperma Peter Rubtzoff 1976-3-28 8451 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-BC281710  Carduus pycnocephalus Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  UCD85499  Carduus pycnocephalus Alison Blake 2003-4-14 2 San Mateo Filoli botanical gardens. Section F-8, ESE of volunteer parking lot about 30 ft beyond P.L. entrance. Comment
Read comments
Jan 18 2012
  JROH581  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1981-5-8 20567 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC281836  Carduus tenuiflorus John Thomas Howell 1939-6-16 14741 San Mateo Skyline Blvd near Crystal Springs Lake Comment
  CAS-BOT-BC17853  Carex amplifolia Lewis S. Rose 1933-6-23 33250 San Mateo Kings Mountain. Comment
  SEINET7273593 Image available Carex amplifolia L. S. Rose 1933-6-23 33250 San Mateo Kings Mountain Comment
  CAS-BOT-BC19325  Carex barbarae Walter Knight; Irja Knight 1965-4-15 s.n. San Mateo San Bruno Mountain. Mouth of Colma Canyon. Comment
  CAS-BOT-BC19327  Carex barbarae Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain. Frontage Road north City Limits of South San Francisco. Comment
  CAS-BOT-BC19543  Carex bolanderi Lewis S. Rose 1933-6-23 33253 San Mateo Kings Mountain. Comment
  JROH4321  Carex bolanderi Carol Zabel, Toni Corelli 2005-6-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 13 south of Leonard's Bridge. 106 Comment
  CAS-BOT-BC34076  Carex brevicaulis Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5250 San Mateo Tunitas. Comment
  JROH4328  Carex densa John H. Thomas 1967-6-1 12946 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7556731 Image available Carex densa Alice Eastwood, John Thomas Howell 1937-5-7 4328 San Mateo Visatacion Valley. Comment
  CAS-BOT-BC21808  Carex harfordii Elizabeth McClintock; Paul Reeberg 1989-5-2 s.n. San Mateo Lower Owl Canyon. 45 Comment
  CAS-BOT-BC21809  Carex harfordii Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo Bayshore Blvd. Comment
  CAS-BOT-BC21812  Carex harfordii George Thomas Oberlander 1950-4-23 847 San Mateo Cahill Ridge. Comment
  CAS-BOT-BC227481  Carex harfordii Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. In the main drainage area of the Shearwater area, west of Bayshore Boulevard 76 Comment
  CAS-BOT-BC119446  Carex nudata W. R. Dudley 1903-6-6 s.n. San Mateo Below Iversons near margin of Peter;s Creek at mouth. Comment
  UCR279853  Carex obnupta Peter Rubtzoff 1978-5-18 9174 San Mateo San Francisco Bay Region, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 220 Comment
  UCR279900  Carex obnupta Peter Rubtzoff, Roman Gankin 1975-5-21 7965 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  CAS-BOT-BC32499  Carex obnupta Henry Nicholas Bolander 1566 San Mateo Near Fort Point Comment
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Oct 30 2021
  CHSC109976  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-BC117403  Carex senta W. L. Scofield 1908-4-2 s.n. San Mateo Near Roble bridge, Stanford University. Comment
  POM193944  Carex serratodens Le Roy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  CAS-BOT-BC117653  Carex serratodens Cherie L. Wetzel 1969-6-20 883 San Mateo Near Canada College, Redwood City, just off Farm Hill Blvd. Comment
  RSA127081  Carex subbracteata John H. Thomas 1959-4-4 7657 San Mateo About 0.7 miles S. of Gazos Creek. About 6.5 miles southward from Pescadero. 46 Comment
  SEINET4152292  Carex subbracteata Unknown 1938-5-1 13782 San Mateo Near south San Francisco Comment
  SJSU15906  Carex subbracteata John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1731 B San Mateo Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  SEINET10750023  Carex subbracteata John Thomas Howell 1938-5-1 Howell 13783 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC116822  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5256 San Mateo Pescadero Comment
  CAS-BOT-BC116827  Carex subbracteata var. subbracteata W. R. Dudley 1908-6-26 s.n. San Mateo Edge of Pond, near Coal Mine Ridge Road. Comment
  CAS-BOT-BC116767  Carex subfusca Roxana S. Ferris 1921-5-29 2917 San Mateo Roadside ditch near Arroyo de los Frijoles. Comment
  CAS-BOT-BC115506  Carex tumulicola John Thomas Howell 1938-5-1 13777 San Mateo San Bruno Hills. Comment
  JROH4364  Carex tumulicola Herbert Dengler unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA119340  Carex tumulicola S. S. Tillett, I. Sternback 1956-6-25 543 San Mateo On Middleton property S of road to Portola State Park, just before entrance; in secondary redwood forest. 396 Comment
  CAS-BOT-BC230112  Carpobrotus chilensis John H. Thomas 1963-5-20 10142 San Mateo Ano [Ano] Nuevo Island, about 0.5 mile off shore and about 20 miles NW of Santa Cruz Comment
  JEPS6875  Castilleja Rimo Bacigalupi with G. T. Robbins 1954-6-18 4549 San Mateo along Skyline Blvd, 1 1/2 mi N of the crossing of the page Mill (Alpine) road Comment
  JEPS86183  Castilleja L. R. Heckard 1988-5-18 6677 San Mateo ca 0.8 mi below Skyline Blvd. (Old La Honda Rd); Santa Cruz Mtns. 520 Comment
  POM15998  Castilleja affinis C. F. Baker 1903-4-6 1877 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  RSA82256  Castilleja affinis F. W. Peirson 1932-7-5 10243 San Mateo Just south of Pescadero. Comment
  JEPS88834  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-20 7880 San Mateo hill just s Rockaway Beach Comment
  JROH3932  Castilleja affinis subsp. affinis D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH3942  Castilleja affinis subsp. affinis John H. Thomas 1974-4-25 17213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1537571  Castilleja affinis subsp. affinis Gordon H. True Jr. 1936-4-5 389 San Mateo between San Gregorio and Pescadero 152 Comment
  UC444883  Castilleja affinis subsp. affinis R. L. Pendleton 1907-4-2 550 San Mateo w of Los Gatos 243 Comment
  JEPS47393  Castilleja affinis subsp. affinis L. R. Heckard 1964-6-24 1400 San Mateo along upper part of Monterey Road Pacifica Comment
  JEPS7866  Castilleja ambigua subsp. ambigua Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4556 San Mateo 3.3 mi s Pescadero; Arroyo de los Frijoles Comment
  RSA408815  Castilleja ambigua subsp. ambigua Francis W. Pennell, D. D. Keck 1940-5-15 25427 San Mateo Route 101. Burlingame. 0 Comment
  UC886508  Castilleja ambigua subsp. ambigua Alice Eastwood 1912-6-2 208 San Mateo Granada Comment
  SBBG40478  Castilleja ambigua subsp. ambigua W. J. Dress 1951-5-12 3339 San Mateo 4.5 mi N of Pigeon Point Comment
  JROH3964  Castilleja attenuata John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3970  Castilleja attenuata John Hunter Thomas 1985-4-18 23526 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS30077  Castilleja densiflora subsp. densiflora Lewis S. Rose 1961-4-5 61035 San Mateo San Bruno Mountains 365 Comment
  JEPS86228  Castilleja densiflora subsp. densiflora L. R. Heckard 1970-5-5 2453 San Mateo Brisbane, ne edge of San Bruno Mountain San Bruno Mountain Comment
  JROH3975  Castilleja densiflora subsp. densiflora John H. Thomas 1957-4-16 6659 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH3983  Castilleja densiflora subsp. densiflora John Hunter Thomas 1983-4-3 21308 San Mateo Jasper Ridge Biological Preserve, Stanford University; along beach near Searsville Lab Comment
  JROH3986  Castilleja densiflora subsp. densiflora John Hunter Thomas 1986-5-8 24026 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG54571  Castilleja densiflora subsp. densiflora F. W. Pennell, D. D. Keck 1940-5-15 25425 San Mateo 4 mi W of Burlingame 152 Comment
  UC1012312  Castilleja densiflora subsp. densiflora F. W. Pennell and D. D. Keck 1940-5-15 25425 San Mateo 4 mi w Burlingame (Route 101) 152 Comment
  JEPS18929  Castilleja exserta subsp. latifolia Rimo Bacigalupi with S. Galen Smith, G. T. Robbins and Lauramay Dempster 1956-5-15 5647 San Mateo about at the center of Montara Mountain Montara Mountain 487 Comment
  UC150065  Castilleja foliolosa L. R. Abrams 1904-4-10 San Mateo near Crystal Lake Comment
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Mar 12 2009
  SEINET12288673  Castilleja foliolosa McCallum 1933-1 s.n. San Mateo in Los Trancus Woods Comment
  CAS-BOT-BC243826  Castilleja latifolia Katharine Brandegee 1917-7-29 s.n. San Mateo Tunitas Station, Ocean Shore R.R. Comment
  JEPS103889  Castilleja latifolia T. I. Chuang and F. M. Chuang 1991-6-29 7852 San Mateo Just south of Pescadero State Beach, on highway 1 Comment
  SD38274  Castilleja latifolia Edith A. Purer 1933-7-27 5374 San Mateo Sand dunes, two miles south of Pigeon Point Comment
  JROH3990  Castilleja rubicundula subsp. lithospermoides James Newman 1951-4-21 10 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  JROH3995  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1961-4-29 9188 San Mateo Jasper Ridge Biological Preserve, Stanford University; at western end of serpentine outcroppings Comment
  JROH3997  Castilleja rubicundula subsp. lithospermoides D. E. Breedlove 1971-5-31 19360 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH4003  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1981-4-23 20477 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD37771  Castilleja rubicundula subsp. lithospermoides Edith A. Purer 1933-5-25 3652 San Mateo Spring Valley Lakes Comment
  JEPS47427  Castilleja subinclusa subsp. franciscana L. R. Heckard 1964-7-26 1425 San Mateo 0.4 mi from Lobitos Creek rd. jct. rd. with Verde Road (old highway) (above Lobitos Creek valley) Comment
  UC1039782  Castilleja subinclusa subsp. franciscana H. L. Mason 1927-4-23 3678 San Mateo La Honda to Pescadero Creek (via Blumquist Mill) Comment
  JEPS29419  Castilleja wightii L. R. Heckard 1961-7-16 1267 San Mateo near San Bruno Mt. summit; San Bruno Mt. 304 Comment
  JEPS6953  Castilleja wightii Peter H. Raven 1950-4-30 1989 San Mateo Montara Mts. 24 Comment
  RSA428366B  Castilleja wightii E. A. Purer 1933-7-27 5374 San Mateo 2 miles south of Pigeon Point. Comment
  UC1341771  Castilleja wightii Noel H. Holmgren and James L. Reveal 1966-6-5 2632 San Mateo 0.25 mi s Skyline Boulevard (Calif. Hwy. 35) jct. with Calif. Hwy. 1 Comment
  HSC20580  Castilleja wightii L. S. Rose 1965-4-22 65026 San Mateo San Bruno Mtn., S of parking lot 366 Comment
  JEPS103886  Castilleja wightii T. I. Chuang 1991-7-20 7879 San Mateo Hill just S of Rockaway Beach. Comment
  JEPS60428  Castilleja wightii T. I. Chuang with F. M. Chuang 1969-6-22 6668 San Mateo 2.8 mi s Pescadero Point (on Highway 1) Comment
  JEPS86211  Castilleja wightii L. R. Heckard Sep 1970 2464 San Mateo Bean Hollow State Beach; s of south parking lot Comment
  OBI78360  Castilleja wightii Lewis S. Rose 1965-4-22 65026 San Mateo San Bruno Mtn, S of parking lot 366 Comment
  RSA18358  Castilleja wightii Carl B. Wolf 1929-5-25 3730 San Mateo Just north of Pigeon Pt. Comment
  RSA296376  Castilleja wightii R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4557 San Mateo Road-bank just south of bridge across Arroyo de los Frijoles, along Calif. Highway No 1, 3.3 miles south of Pescadero. Comment
  CAS-BOT-BC40242  Caulanthus lasiophyllus G. H. True 1937-3-31 614 San Mateo Salada Beach. Comment
  JROH1525  Caulanthus lasiophyllus John H. Thomas 1968-5-22 14456 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA399076  Ceanothus cuneatus L. H. Jones 1909-3-5 s.n. San Mateo Summit and W side of Jasper Ridge, Stanford University 198 Comment
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Sep 19 2011
  SJSU280  Ceanothus cuneatus H. W. Marion 1936-3-8 49 San Mateo 0.5 mi E of Searsville L 175 Comment
  JROH3520  Ceanothus cuneatus var. cuneatus John H. Thomas 1955-5-6 5016 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3525  Ceanothus cuneatus var. cuneatus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA169355  Ceanothus cuneatus var. dubius L. S. Rose 1964-3-23 64011 San Mateo Emerald Lake, hills W of Redwood City. 122 Comment
  UCSB18615  Ceanothus cuneatus var. ramulosus 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
  CDA34104  Ceanothus incanus D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .158 San Mateo Santa Cruz Mountains.; Along Big Basin Hwy ~5 km E of Big Basin. Comment
  CAS-BOT-BC51594  Ceanothus oliganthus var. sorediatus A. D. E. Elmer 1903-5-1 4479 San Mateo Portola Comment
  CAS-BOT-BC51598  Ceanothus oliganthus var. sorediatus W. R. Dudley 1899-5-14 s.n. San Mateo Baden Brook Hills Comment
  CAS-BOT-BC51599  Ceanothus oliganthus var. sorediatus W. R. Dudley 1894-12-13 s.n. San Mateo Above Prestou's, La Honda road Comment
  CAS-BOT-BC51600  Ceanothus oliganthus var. sorediatus W. R. Dudley 1893-4-1 s.n. San Mateo Foothills - McDuough Place near portola Comment
  CAS-BOT-BC51604  Ceanothus oliganthus var. sorediatus Brandegee 1890-5-1 38 San Mateo Mts. bet. San Francisco and Santa Cruz Comment
  CAS-BOT-BC51608  Ceanothus oliganthus var. sorediatus James McMurphy 1906-4-4 s.n. San Mateo Los Trancos Creek, above Judge Allan's Comment
  CAS-BOT-BC51609  Ceanothus oliganthus var. sorediatus William R. Dudley 1904-4-7 s.n. San Mateo Los Trancos Cr. Comment
  CAS-BOT-BC51245  Ceanothus papillosus Josephine D. Randall 1907-4-27 317 San Mateo Santa Cruz Peninsula - King's Mountain Comment
  UC79824 Image available Ceanothus papillosus C. F. Baker 1902-5-10 804 San Mateo Kings Mountain; King's Mt. Comment
  CAS-BOT-BC52280  Ceanothus thyrsiflorus Elizabeth McClintock 1965-3-28 s.n. San Mateo North Powerline Ridge Comment
  CAS-BOT-BC52281  Ceanothus thyrsiflorus Elizabeth McClintock 1966-5-1 s.n. San Mateo unspecified 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-BC52289  Ceanothus thyrsiflorus David D. Keck 1932-5-11 1773 San Mateo Three miles West of Kings Mountain, on road to Tunitas, west slope of Santa Cruz Mountains 457 Comment
  CAS-BOT-BC52302  Ceanothus thyrsiflorus Barrett Anderson; Peter Rubtzoff 1988-4-22 2667 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Canyon Parkway 365 Comment
  CAS-BOT-BC52305  Ceanothus thyrsiflorus Marian L. Campbell 1915-6-18 s.n. San Mateo San Bruno hills Comment
  CAS-BOT-BC52307  Ceanothus thyrsiflorus Josephine D. Randall 1907-7-23 321 San Mateo near Crystal Springs Lake Comment
  CAS-BOT-BC52310  Ceanothus thyrsiflorus Miss O. Boring 1897-8-25 s.n. San Mateo Near Kings Mt. House Comment
  CAS-BOT-BC52311  Ceanothus thyrsiflorus H. A. Borthwick 1920-4-28 s.n. San Mateo Crystal Springs Lake Comment
  HSC23931  Ceanothus thyrsiflorus Mary Katherine Wicksten 1971-6-17 26 San Mateo Huddart Park, near parking are above Redwood Shelter Comment
  RSA398960  Ceanothus thyrsiflorus Harlan Lewis 1908-4-20 s.n. San Mateo Crystal Springs Lake. 213 Comment
  RSA398961  Ceanothus thyrsiflorus Glenn A. Gorelick 1967-4-28 s.n. San Mateo San Bruno Mts, overlooking Daly City ner San Francisco Comment
  SEINET12209977  Ceanothus thyrsiflorus Unknown 1932-1 8972 San Mateo Comment
  UCSB3905  Ceanothus thyrsiflorus var. griseus Walker, Clifford 1954-4-20 San Mateo Woodside Rd. 1 mi. E. Woodside 2 Comment
  SBBG115374  Ceanothus thyrsiflorus var. thyrsiflorus R. Gankin 1950-7-9 21 San Mateo 1 mi W of Pescadero toward St Hwy 1 15 Comment
  JROH586  Centaurea calcitrapa John H. Thomas 1970-7-5 15671 San Mateo Jasper Ridge Biological Preserve, Stanford University; by bridge Comment
  JROH594  Centaurea calcitrapa John Hunter Thomas 1989-5-9 24702 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC274586  Centaurea calcitrapa L. R. Abrams; I. L. Wiggins 1930-11-13 174 San Mateo Hillside above Crystal Springs Lake Comment
  CAS-BOT-BC274596  Centaurea calcitrapa R. E. Frenkel 1963-12-7 318 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.4 mile north of the junction with Spring Valley Ridge Road Comment
  HSC23938  Centaurea calcitrapa Mary Katherine Wicksten 1971-8-19 199 San Mateo Huddart Park by horse ring Comment
  JROH593  Centaurea calcitrapa John Hunter Thomas 1988-10-17 24602 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0115047  Centaurea calcitrapa Lyman Benson 1945-7-29 11838 San Mateo Bayshore Highway at San Carlos. 3 Comment
  CAS-BOT-BC277121  Centaurea melitensis Margaret A. Barry 1937-6-22 167 San Mateo Exposed top of Coal Mine Ridge Comment
  CAS-BOT-BC277128  Centaurea melitensis John H. Thomas 1963-7-19 10199 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  JROH607  Centaurea solstitialis John Hunter Thomas 1982-6-7 21027 San Mateo Jasper Ridge Biological Preserve, Stanford University; old sandy beach Comment
  JROH611  Centaurea solstitialis John Hunter Thomas 1991-11-21 26109 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  RSA133075  Centaurium davyi John H. Thomas 1954-6-11 4276 San Mateo 0.8 mile north of Pescadero Creek. 30 Comment
  UC625427  Centaurium davyi L. R. Abrams and I. L. Wiggins 1939-6-3 423 San Mateo Ano Nuevo Point Comment
  UCR121565  Centaurium muehlenbergii George K. Helmkamp, E. A. Helmkamp 1999-6-28 4987 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  UCSC005474  Centaurium muehlenbergii Randall Morgan 1998-7-28 3329 San Mateo N stretch of Stage Road off Hwy 1 Comment
  RSA187357  Centranthus ruber John H. Thomas 1958-11-9 7503 San Mateo Along El Camino Real at northern end of San Carlos. 30 Comment
  HSC5817  Centromadia pungens L. S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  SD5599  Centromadia pungens Ulysses S. Grant IV 1925-9-2 San Mateo Burlingame Comment
  SEINET8734815 Image available Centromadia pungens Lewis S. Rose 1938-1 38231 San Mateo San Mateo 6 Comment
  UCD130207  Centromadia pungens Lewis S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  CAS-BOT-BC279327  Centromadia pungens subsp. pungens Roxana Stinchfield 1915-9-19 250 San Mateo Santa Cruz Mountain Peninsula. Fields near Salt Marshes, Palo Alto Comment
  JEPS44407  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Trousdale Dr. and California Dr.; Burlingame 9 Comment
  POM319936  Cerastium arvense Barbara Shervanick 1973-4-1 788 San Mateo San Bruno Mt. at first summit at end of Crocker Rd.; Mt. Range: San Bruno Mts.; Drainage Area: San Francisco Bay. Comment
  UC311136  Cerastium glomeratum A. D. E. Elmer April, 1903 4473 San Mateo San Bruno Hills Comment
  JROH149  Ceratophyllum demersum Alan Grundman 1976-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC135473  Cercocarpus betuloides var. betuloides James McMurphy 1906-4-4 s.n. San Mateo Creek above Judge Allen's Ranch Comment
  JROH3618  Cercocarpus betuloides var. betuloides H. L. Dale 1927-5-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  RSA149154  Chenopodium californicum John H. Thomas 1961-5-13 9338 San Mateo Coastal sand dunes at Franklin Point. Comment
  POM177325  Chenopodium macrospermum var. farinosum L. R. Abrams, I. Wiggins 1930-11-13 178 San Mateo Margin of pond at DSalada Beach. Comment
  UC1537380  Chenopodium murale Gordon H. True Jr. 1937-10-16 848 San Mateo near Thornton Beach 3 Comment
  JROH1829  Chenopodium vulvaria Ann Lambrecht, Carol Zabel 2005-8-24 19 San Mateo Jasper Ridge Biological Preserve, Stanford University; Bear Creek crossing, east bank Comment
  CAS-BOT-BC497724  Chlorogalum pomeridianum Fred Hemphill 1973-5-14 806 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC497731  Chlorogalum pomeridianum George Oberlander 1950-6-3 1039 San Mateo South San Andreas Lake Comment
  IRVC9050  Chlorogalum pomeridianum P. W. Rundel 1963-7-7 1144 San Mateo San Francisco Bay drainage area; Kings Mtn Road; woodside. Santa Cruz Mountains 305 Comment
  CAS-BOT-BC191593  Chorizanthe cuspidata var. cuspidata A. D. E. Elmer 1903-5-1 4793 San Mateo San Pedro Comment
  POM87940  Chorizanthe cuspidata var. marginata L. R. Abrams 1901-05 1603 San Mateo Colma Comment
  RSA489244  Chorizanthe membranacea C. Rose Broome, Cristalyn M. Cagle 1978-6-17 2166 San Mateo Nacimiento - Ferguson Road 3 miles east of its junction with California Highway 1, and 4.1 miles west of Nacimiento Guard Station, Los Padres National Forest 427 Comment
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Oct 1 2021
  RSA159419  Chrysanthemum coronarium John H. Thomas 1961-5-7 9245 San Mateo Colma, near intersection of El Camino Real and F Street 46 Comment
  RSA54048  Chrysanthemum leucanthemum J. T. Howell 1949-7-4 25356 San Mateo Skyline Blvd., north of Millbrae Comment
  UCR122974  Chrysanthemum maximum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6763 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  RSA118979  Chrysolepis chrysophylla Oliver W. Norvell 1931-2-22 1320 San Mateo Kings Mt. Road. Comment
  RSA476617  Chrysolepis chrysophylla E. A. Purer 1932-7-18 4001 San Mateo King's Mountain. Comment
  UC1135216  Chrysolepis chrysophylla var. minor C. M. Belshaw 1935-1-25 1468 San Mateo 2.5 mi nw Sierra Moreno Peak; Santa Cruz Quad. 457 Comment
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Oct 3 2011
  JEPS85230  Cicendia quadrangularis Roy E. Buck and James A. West 1985-4-29 524 San Mateo 1.9 air km ene Franklin Point (just n of Whitehouse Canyon rd, ca 0.8 km ne of Whitehouse Canyon Rd junction with Calif Hwy 1, Cascade Ranch) Comment
  SJSU8865  Cicendia quadrangularis S. H. Casey 1979-5-10 San Mateo Wunderlich Park c. 2 mi S of Woodside Comment
  CAS-BOT-BC285234  Cichorium intybus Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo San Bruno Mountains. In Guadalupe Valley Comment
  RSA0070579  Cirsium brevistylum A. D. E. Elmer 1903-06 4277 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC100946  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-6-1 4292 San Mateo Crystal Springs Lake Comment
  OBI16742  Cirsium fontinale var. fontinale Lewis S. Rose 1959-1 San Mateo Comment
  UC922267  Cirsium fontinale var. fontinale H. K. Sharsmith 1937-6-3 3952 San Mateo about 3 mi w of San Mateo; Crystal Springs Lake 152 Comment
  CAS-BOT-BC285672  Cirsium occidentale var. occidentale A. A. Heller 1906-6-8 8379 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  CAS-BOT-BC280516  Cirsium quercetorum R. S. Ferris 1921-5-1 2184 San Mateo Arroyo de Los Frijoles Comment
  JEPS27347  Cirsium quercetorum Rimo Bacigalupi with L. Heckard and Jim Roof 1961-4-24 7607 San Mateo meadow at summit of divide between Colma Canyon and Guadulupe Valley (just n of San Bruno Mt.); Colma Canyon, Guadalupe Valley, San Bruno Mt. 205 Comment
  CAS-BOT-BC280506  Cirsium quercetorum Peter H. Raven 1961-8-24 16587 San Mateo East side of Crystal Springs Lakes Comment
  RSA0070862  Cirsium quercetorum E. B. Copeland 1903-6-7 3316 San Mateo Montara Point. Comment
  JROH639  Cirsium vulgare John H. Thomas 1974-8-3 17499 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285861  Cirsium vulgare Ira L. Wiggins 1977-7-23 22189 San Mateo Northerly side of San Francisquito Creek stream bed, ca 150 m upstream from Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC285868  Cirsium vulgare Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC285869  Cirsium vulgare George Oberlander 1949-8-20 335 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  SEINET11834687  Cirsium vulgare E. H. Graham 1931-1 6927 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  UC762862  Clarkia epilobioides R. F. Hoover 1941-4-23 4904 San Mateo Redwood City Hills Comment
  CAS-BOT-BC163964  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1894-5-1 s.n. San Mateo Road from Woodside to Crystal Spr. Reservoir Comment
  CAS-BOT-BC164566  Clarkia purpurea subsp. viminea John H. Thomas 1971-5-2 15844 San Mateo Near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  JROH3020  Clarkia rubicunda John H. Thomas 1974-6-30 17457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1279917  Clarkia rubicunda Peter H. Raven 1957-6-30 11016 San Mateo 5.3 mi e Pescadero (on road along creek); Pescadero Creek Comment
  UC306513  Clarkia rubicunda A. D. E. Elmer June, 1903 4310 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC165132  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165137  Clarkia rubicunda Robert Setzer 1969-7-18 3366 San Mateo Montara Beach Comment
  CAS-BOT-BC165144  Clarkia rubicunda Elizabeth McClintock 1965-6-13 s.n. San Mateo Lower slope on south side above Olivet Cemetery Comment
  UCD104830  Clarkia rubicunda W. A. Harvey; J. M. Tucker 1948-6-29 1709 San Mateo Beside road to Portola State Park, just W of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC165606  Clarkia unguiculata A. D. E. Elmer 1903-6-1 4293 San Mateo Alpine School House Comment
  CAS-BOT-BC439591  Claytonia parviflora subsp. parviflora John H. Thomas 1963-5-20 10097 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. 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
  JROH5905  Claytonia perfoliata subsp. perfoliata M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail, west side of Searsville Dam Comment
  CAS-BOT-BC91480  Clematis lasiantha Josephine D. Randall 1907-7-4 305 San Mateo Santa Cruz Peninsula. Mill's Lake. Comment
  CAS-BOT-BC91481  Clematis lasiantha J. I. McMurphy 1906-5-20 19 San Mateo Santa Cruz Peninsula. Santa Cruz Mountains. Woodside. Comment
  CAS-BOT-BC91484  Clematis lasiantha L. R. Abrams 1914-4-2 5076 San Mateo Woodside. Comment
  JROH5686  Clematis lasiantha John Rawlings 2015-3-3 1310 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 9. 194 Comment
  RSA195552  Clematis lasiantha John H. Thomas 1966-4-29 11586 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  SEINET12099146  Clematis lasiantha J. H. Thomas 1959-1 7666 San Mateo Jasper Ridge, 5 mi SW of Palo Alto 152 Comment
  UC729849  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 2 mi from Pescadero (on Alpine Creek); Alpine Creek Comment
  SEINET8495448 Image available Clintonia andrewsiana L. M. Henry, M. E. Springer 1946-7-21 369 San Mateo La Honda Comment
  UC729634  Collinsia heterophylla Carl B. Wolf 1929-5-17 3714 San Mateo 1 mi w of Skyline Boulevard (on Alpine Road); Alpine Road 304 Comment
  CAS-BOT-BC240922  Collinsia multicolor Dr. E Goodman 1922-5-23 s.n. San Mateo San Bruno hills Comment
  CAS-BOT-BC240927  Collinsia multicolor Robert F. Hoover 1941-4-23 4901 San Mateo San Mateo Creek below Crystal Springs Dam Comment
  JROH5706  Collinsia sparsiflora var. collina John Rawlings 2015-3-15 1349 A San Mateo Jasper Ridge Biological Preserve, Stanford University 110 Comment
  POM50569  Collinsia sparsiflora var. collina L. R. Abrams 1902-4-13 2322 San Mateo San Andreas Lake. Comment
  JROH3139  Collomia heterophylla John H. Thomas 1961-5-5 9217 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  RSA653552  Collomia heterophylla George K. Helmkamp, E. A. Helmkamp 1999-6-28 4978 San Mateo Pescadero Rd just N of Loma Mar. 107 Comment
  JROH218  Conium maculatum John Hunter Thomas 1982-5-18 20947 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Searsville Lake near bridge Comment
  UC1122927  Conium maculatum G. E. Sindel 1935-7-22 293 San Mateo 1 mi s of Pescadero 30 Comment
  RSA161348  Conium maculatum P. H. Raven 1961-8-24 16588 San Mateo East side of Crystal Springs Lake Comment
  SBBG54550  Conium maculatum C. Taylor 1971-6-12 158 San Mateo corner of Harbor Blvd and Old Country Rd, Belmont Comment
  JROH1853  Convolvulus arvensis John Hunter Thomas 1986-6-3 24078 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing bowl Comment
  RSA0104570  Convolvulus arvensis Sandra M. Namoff 70 San Mateo Half Moon Bay, near Francis Beach State Park, on Kelly Ave SW of intersection with Hwy 1, easement. 18 Comment
  CAS-BOT-BC285991  Conyza bonariensis Peter H. Raven 1950-6-3 2222 San Mateo Along Millbrae Ave., Millbrae 60 Comment
  RSA176609  Conyza canadensis John H. Thomas 1961-8-27 9694 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
  CAS-BOT-BC288964  Conyza floribunda Peter Rubtzoff; Patricia Fallon 1987-8-26 9838 San Mateo San Bruno Mts: Saddle area on N side of Guadelupe Canyon. Parkway W of Radio Rd junction; NW part of the area along old Guadelupe Rd Comment
  UCD77568  Corallorhiza maculata Robert E. Preston 2001-5-30 1534 San Mateo Ca. 9 mi nnw of Boulder Creek. 365 Comment
  POM15833  Cordylanthus maritimus subsp. palustris Jos. Burtt Davy 1893-6-17 773 San Mateo Balmont Comment
  JROH4028  Cordylanthus pilosus subsp. pilosus John H. Thomas 1972-8-18 16151 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA40318  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside. 549 Comment
  JEPS70048  Cordylanthus rigidus subsp. rigidus L. R. Heckard 1971-9-26 2828 San Mateo Kings Mt. road 4.4 mi above junction route 84 457 Comment
  CAS-BOT-BC101483  Corethrogyne filaginifolia George Oberlander 1950-4-3 863 San Mateo Grassland east of Lower Crystal Spr. Lake Comment
  POM57992  Corethrogyne filaginifolia var. californica C. F. Baker 1902-5-10 810 San Mateo Crystal Springs Lake. Comment
  POM88007  Corethrogyne filaginifolia var. californica L. R. Abrams 1902-5-11 2459 San Mateo Crystal Springs. Comment
  RSA54182  Cornus glabrata C. B. Wolf 1931-8-20 3870 San Mateo 3 miles west of Mayfield on road to La Honda. 91 Comment
  CAS-BOT-BC190043  Cortaderia jubata Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountains. Along Guadalupe Canyon Parkway east of Northeast ridge. 60 Comment
  CAS-BOT-BC180361  Corylus cornuta subsp. californica Josephine D. Randall 1907-6-8 113 San Mateo Portola Road. Santa Cruz Peninsula Comment
  CAS-BOT-BC180368  Corylus cornuta subsp. californica A. D. E. Elmer 1903-3-1 4536 San Mateo King's Mountain Comment
  CAS-BOT-BC180369  Corylus cornuta subsp. californica David D. Keck 1932-2-12 1362 San Mateo La Honda road, E slope of Coast Range above Searsville Lake 304 Comment
  CAS-BOT-BC180373  Corylus cornuta subsp. californica Margaret A. Barry 1937-6-15 199 San Mateo Coal Mine Ridge Comment
  POM270392  Corylus cornuta var. californica Lyman Benson 1931-2-28 2613 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  RSA152233  Corylus cornuta var. californica I. L. Wiggins 1925-04 1649 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  CAS-BOT-BC453503  Cotoneaster lacteus Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo Colma Canyon; San Bruno Mountains Comment
  JROH3639  Cotoneaster pannosus John Hunter Thomas 1981-4-23 20466 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH659  Cotula australis John H. Thomas 1979-4-8 19445 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC287307  Cotula australis Walter & Irja Knight 1965-3-21 957 San Mateo San Bruno Mt. North Power Line Ridge along summit road Comment
  UC912224  Cotula coronopifolia Herbert L. Mason 1927-4-24 3707 San Mateo mouth of San Gregorio Creek Comment
  UCR121261  Cotula mexicana Don Pendleton 2002-4-8 s.n. San Mateo San Francisco Bay Region, Sharp Park Golf Course, Pacifica 15 Comment
  CAS-BOT-BC427606  Crassula aquatica George Oberlander 1949-8-20 374 San Mateo San Francisco Watershed Reserve. About San Andreas Lake Comment
  JROH3649  Crataegus laevigata Carol Zabel and Irene Brown 2003-6-15 49 San Mateo Jasper Ridge Biological Preserve, Stanford University. Hermit's cabin site. Comment
  UCD163786  Crepis capillaris Peter Rubtzoff 1988-6-9 9926 San Mateo San Bruno Mountains, near parking lot on east side of 'saddle' area. Comment
  CAS-BOT-BC290924  Crepis vesicaria John Thomas Howell 1956-5-1 31316 San Mateo Just s. of Woodside on road to Searsville Comment
  JROH4998  Crypsis schoenoides John Rawlings 2009-9-9 0999 San Mateo Jasper Ridge Biological Preserve, Stanford University; in drying bed of Middle Lake 104 Comment
  CAS-BOT-BC189264  Cryptantha W. R. Dudley 1906-6-9 s.n. San Mateo Tunitas Road Comment
  UC480685  Cryptantha flaccida H. F. Copeland 1920-6-1 11120 San Mateo near Woodside Comment
  UC78495  Cryptantha flaccida C. F. Baker 1902-4-6 468 San Mateo Crystal Springs Lake Comment
  SJSU7524  Cryptantha flaccida L. S. Rose 1966-5-2 66032 San Mateo Emerald L, W of Redwood City 91 Comment
  JROH1363  Cryptantha micromeres Paul R. Hichborn 1920-5-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ridge near Searsville Lake Comment
  RSA157756  Cryptantha micromeres I. L. Wiggins 1925-4-11 1611 San Mateo San Mateo County, E of rock Crusher on San Francisquito Creek. Comment
  JROH1371  Cryptantha microstachys Herbert Dengler 1960-5-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; firetrail on top of Nolan Ridge (the ridge N.E. of Corte Madera Cr. in chaparral -- about 200 yds W. of Westridge border) Comment
  JROH1378  Cryptantha microstachys John Hunter Thomas 1978-5-16 19213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5670  Cryptantha microstachys John Rawlings 2015-5-7 1264 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Rd E south side of Big Inlet. 117 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-BC80523  Cupressus arizonica Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo grassland above Harold Avenue, Brisbane 121 Comment
  CAS-BOT-BC80785  Cupressus macrocarpa Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue. Plants of San Bruno Mountain. Comment
  CAS-BOT-BC80787  Cupressus macrocarpa J. H. Thomas 1960-8-28 8832 San Mateo Growing on steep road bank near Skyline Blvd. and Summit Drive to the west of Hillsborough. Comment
  JROH5621  Cuscuta occidentalis Ann Lambrecht, Toni Corelli, John Rawlings 2010-8-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Old dock below Searsville Lab 104 Comment
  RSA51358  Cuscuta salina L. S. Rose 1949-8-24 49167 San Mateo South San Francisco Comment
  HSC23885  Cuscuta subinclusa Mary Katherine Wicksten 1971-7-2 152 San Mateo Huddart Park, Kings Mtn. Rd. above Miwok Area Comment
  CAS-BOT-BC287328  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  CAS-BOT-BC287329  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  CAS-BOT-BC287330  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  CAS-BOT-BC287334  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  CAS-BOT-BC287342  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
  RSA141086  Cynara scolymus John H. Thomas 1960-6-25 8800 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  RSA141091  Cynara scolymus John H. Thomas 1960-6-25 8800 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  JROH5001  Cynodon dactylon John H. Thomas 1967-11-5 14135 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA34568  Cynoglossum grande M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 871 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  JROH1391  Cynoglossum grande Duncan M. Porter 1961-2-5 739 San Mateo Jasper Ridge Biological Preserve, Stanford University; near gate at Westridge end of ridge Comment
  POM128514  Cynoglossum grande L. R. Abrams 1902-4-6 2317 San Mateo Searsville. Comment
  POM176865  Cynoglossum grande L. R. Abrams 1914-3-1 5060 San Mateo Woodside. Comment
  JROH5010  Cynosurus echinatus John Hunter Thomas 1986-6-17 24099 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4377  Cyperus eragrostis John Hunter Thomas 1977-6-16 18806 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake. Comment
  JROH4383  Cyperus eragrostis John Hunter Thomas 1983-6-2 22324 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the low-flow crossing. Comment
  JROH4386  Cyperus eragrostis John H. Thomas 1959-8-22 8084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4390  Cyperus eragrostis John H. Thomas 1974-10-29 17647 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  RSA132456  Cyperus eragrostis John H. Thomas 1959-8-22 8084 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  CAS-BOT-BC114463  Cyperus eragrostis Phillip C. Wheeler 1965-6-19 s.n. San Mateo Crocker Industrial Park Comment
  RSA800277  Cyperus eragrostis Peter Rubtzoff 1988-6-9 9924 San Mateo San Bruno Mountains, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, along Old Guadalupe Road in the northwestern part of the Saddle area, east of Saddle Trail junction. Comment
  JROH4397  Cyperus erythrorhizos John Hunter Thomas 1982-11-6 21204 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta along edge of Searsville Lake Comment
  SEINET10535609  Cystopteris Mary Susan Taylor 1978-8-30 Taylor 1860 A San Mateo Comment
  CAS-BOT-BC198192  Cytisus scoparius Charles Piper Smith 1922-4-29 3507 San Mateo Lake San Andreas Comment
  SBBG108508  Cytisus scoparius N. Meng 1964-4-18 San Mateo Pacifica 30 Comment
Read comments
Dec 6 2012
  SD37828  Cytisus scoparius Marie Cummings 1933-5-23 3666 San Mateo La Honda Comment
  UCSB11177  Cytisus scoparius Connelly, Dianne 1962-4-21 San Mateo Corner of Milbrae and Sky Line Boulevard; 12 miles southeast of San Francisco 121 Comment
  CAS-BOT-BC189820  Dactylis glomerata Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo San Bruno Mountains. Along Old Guadalupe Trail. Comment
  JROH5017  Dactylis glomerata John Hunter Thomas 1977-6-16 18753 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval Comment
  CAS-BOT-BC192241  Danthonia californica R. S. Ferris 1921-5-28 2189 San Mateo Near Pescadero, coast road Comment
  UCD60479  Danthonia californica R. Tofsrud 1947-6-14 s.n. San Mateo 1-2 mi. N of Pescadero on road to San Gregorio. Comment
  RSA580827  Danthonia californica var. americana D. D. Keck 1932-5-6 1479 San Mateo Open hillside just west of Millbrae Highlands. 50 Comment
  JROH1903  Datisca glomerata John H. Thomas 1961-6-14 9543 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH223  Daucus pusillus John H. Thomas 1968-5-22 14455 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH224  Daucus pusillus John H. Thomas 1969-6-4 15114 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC174170  Deinandra corymbosa Katharine Brandegee 1885-1 San Mateo Moss Beach Comment
  CAS-BOT-BC287371  Deinandra corymbosa A. Kellogg; W. G. W. Harford 1868-6-10 486 San Mateo San Bruno Comment
  CAS-BOT-BC299188  Deinandra corymbosa subsp. corymbosa A. D. E. Elmer 1903-7-1 4963 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC299189  Deinandra corymbosa subsp. corymbosa A. D. E. Elmer 1903-7-1 4963 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC299191  Deinandra corymbosa subsp. corymbosa David D. Keck 1932-5-25 1784 San Mateo Hills two miles west of Belmont Comment
  CAS-BOT-BC299198  Deinandra corymbosa subsp. corymbosa L. R. Abrams 1902-9-21 3000 San Mateo Crystal Lake Comment
  CAS-BOT-BC299199  Deinandra corymbosa subsp. corymbosa L. R. Abrams 1902-9-21 3000 San Mateo Bill Road, Crystal Lake Comment
  CAS-BOT-BC299205  Deinandra corymbosa subsp. corymbosa W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  CAS-BOT-BC300006  Deinandra lobbii W. R. Dudley 1898-11-4 s.n. San Mateo Los Trancos Road near Adelante Villa, vicinity of Standford University Comment
  JEPS8375  Delphinium Rimo Bacigalupi with L. Constance and C. R. Bell 1951-3-25 3205 San Mateo near San Francisco; Colma Canyon 137 Comment
  CAS-BOT-BC9218  Delphinium californicum M. K. Curran 1884-1-1 s.n. San Mateo at Colma near San Francisco Comment
  JROH3433  Delphinium californicum subsp. californicum John H. Thomas 1973-6-10 16811 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-BC9248  Delphinium decorum Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountains, above Fern Rock Comment
  CAS-BOT-BC10288  Delphinium hesperium Alice Eastwood 1912-6-10 320 San Mateo Crystal Springs Comment
  UC854136  Delphinium hesperium Alice Eastwood 1912-6-10 320 San Mateo Crystal Springs Comment
  CAS-BOT-BC10284  Delphinium hesperium G. L. Clifton 1988-5-12 17836 San Mateo San Bruno Mountain, crest of northeast ridge of Guadalupe Hills 128 Comment
  CAS-BOT-BC10289  Delphinium hesperium J. H. Thomas 1949-5-29 564 San Mateo Alpine Road, about 1 mile beyond intersection with Mt. Home Road, going west Comment
  JROH3443  Delphinium hesperium subsp. hesperium John H. Thomas 1974-5-29 17396 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3446  Delphinium hesperium subsp. hesperium John Hunter Thomas 1977-6-16 18775 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9871  Delphinium nudicaule George Thomas Oberlander 1949-5-13 164 San Mateo San Mateo Creek Canyon Comment
  POM177517  Delphinium nudicaule W. R. Dudley 1893-5-27 s.n. San Mateo Beyond King's Mt. Comment
  SBBG28536  Delphinium nudicaule W. R. Dudley 1893-5-27 San Mateo beyond King's Mtn Comment
  RSA18089  Delphinium patens Carl B. Wolf 1929-4-26 3659 San Mateo Woodside. Comment
  CAS-BOT-BC116524  Delphinium patens subsp. patens J. H. Thomas 1954-5-7 4067 San Mateo Near Skyline Blvd. about 2 miles SW of Black Mountain 655 Comment
  JROH3454  Delphinium patens subsp. patens John H. Thomas 1976-4-3 18070 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA32657  Delphinium variegatum Doris K. Kildale 1930-4-21 9221 San Mateo Emerald Lake Comment
  CAS-BOT-BC7932  Delphinium variegatum A. J. Ward Hornby 1952-5-10 113 San Mateo In hills behind Searsville Lake 426 Comment
  UC518022  Delphinium variegatum Lewis S. Rose 1933-4-30 33125 San Mateo open hills Redwood City Comment
  CAS-BOT-BC7937  Delphinium variegatum subsp. variegatum John Hunter Thomas 1961-5-14 9386 San Mateo Along Canada Road near intersection of Edgewood Road 91 Comment
  CAS-BOT-BC632  Dendromecon rigida subsp. rigida Herbert L. Mason 1921-7-1 s.n. San Mateo Butano Ridge. Comment
  CAS-BOT-BC192602  Deschampsia cespitosa subsp. holciformis Dr. E. B. Copeland 1903-6-10 3305 San Mateo Montara Point Comment
  SJSU16035  Deschampsia cespitosa subsp. holciformis John Rawlings, Toni Corelli 2016-4-29 1769 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  CAS-BOT-BC192634  Deschampsia danthonioides H. A. Dutton 1900-4-25 s.n. San Mateo Woodside Comment
  JROH5059  Deschampsia elongata John H. Thomas 1969-6-4 15115 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5060  Deschampsia elongata John H. Thomas 1973-6-15 16844 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5065  Deschampsia elongata John Hunter Thomas 1980-11-27 20193 A San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  CAS-BOT-BC902  Dicentra chrysantha L. R. Abrams 1921-5-25 8007 San Mateo Halfway to summit of Mt. Diablo Comment
  CAS-BOT-BC905  Dicentra chrysantha Mrs. Ernest Meiere 1916-6-1 s.n. San Mateo Mt. Diablo Comment
  UCSB44360  Dicentra formosa Brownell, K. 1979-3-27 San Mateo Gazoos Road, .6 miles east of Highway 1, near Butano State Park 76 Comment
  CAS-BOT-BC500891  Dichelostemma capitatum Ned Cahill 1974-4-19 152 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC500898  Dichelostemma capitatum George Oberlander 1950-3-18 563 San Mateo Sawyer Ridge Comment
  CAS-BOT-BC500899  Dichelostemma capitatum Elmer I. Applegate 1895-5-8 703 a San Mateo San Francisquito Creek, Stanford University Comment
  JROH4659  Dichelostemma capitatum subsp. capitatum John Hunter Thomas 1985-4-25 23563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4665  Dichelostemma congestum John Hunter Thomas 1982-4-23 20836 San Mateo Jasper Ridge Biological Preserve, Stanford University. Picnic area Comment
  CAS-BOT-BC150455  Diplacus aurantiacus Elizabeth McClintock 1965-3-28 s.n. San Mateo North Power Line Ridge Comment
  SD38168  Diplacus aurantiacus Janet Turner 1933-5-30 2123 San Mateo Near Spring Valley Lake Comment
  RSA780382  Dipsacus fullonum Lyman Benson 1937-7-25 8472 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  CDA6696  Dipsacus sativus T. C. Fuller 1960-4-2 4066 San Mateo Crystal Springs Reservoir, road to Half Moon Bay. 0 Comment
  CAS-BOT-BC121857  Dirca occidentalis Lewis S. Rose 1964-3-9 64004 San Mateo N end of Crystal Springs Lake 121 Comment
  RSA15268  Dirca occidentalis Carl B. Wolf 1927-3-2 s.n. San Mateo Above Searsville Lake Comment
  RSA18298  Dirca occidentalis Carl B. Wolf 1927-5-31 418 San Mateo Searsville Lake Comment
  SBBG39502  Dirca occidentalis L. S. Rose 1970-1-30 70002 San Mateo 1 mi SE of San Andreas Lake; Santa Cruz Mts 304 Comment
  UC143369  Disporum hookeri C. F. Baker 1902-4-6 650 San Mateo Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  SEINET5548310  Disporum hookeri H. S. Gentry 1931-1 32 San Mateo Collected 2 miles W of San Bruno. Comment
  CAS-BOT-BC195718  Distichlis spicata Phillip C. Wheeler 1965-8-14 s.n. San Mateo At Brisbane Lagoon Comment
  CAS-BOT-BC195719  Distichlis spicata Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Black Point, San Bruno Comment
  UCD64382  Distichlis spicata var. stolonifera A. A. Beetle 1942-10-1 1889 San Mateo Near San Mateo. Borders of San Francisco Bay. Comment
  UC673409  Dodecatheon clevelandii subsp. patulum Elmer I. Applegate 1895-3-9 324 San Mateo near Woodside; near Woodside Comment
  UC877538  Dodecatheon hendersonii L. R. Abrams 1904-3-14 634 c San Mateo Menlo Heights Santa Cruz Mountain Peninsula, Menlo Heights Comment
  POM287490  Dodecatheon hendersonii subsp. cruciatum Lyman Benson 1929-3-9 1000 San Mateo North slope of rolling foothills at Woodsides. Comment
  CAS-BOT-BC159503  Drymocallis glandulosa var. glandulosa Elizabeth McClintock 1963-6-9 s.n. San Mateo Exposed slopes below top of mountain - San Bruno Mountain Comment
  CAS-BOT-BC67892  Dryopteris arguta David D. Keck 1932-2-12 1361 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 304 Comment
  JROH39  Dryopteris arguta John Hunter Thomas 1981-2-14 20219 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC766794  Dryopteris arguta R. F. Hoover 1941-2-12 4762 San Mateo nw of Summit Saratoga Comment
  UC429788  Dryopteris arguta L. R. Abrams 1901-12-29 2251 San Mateo Santa Cruz Mts. Comment
  JEPS49939  Dudleya caespitosa W. L. Jepson 1910-8-18 4164 San Mateo Gazos Creek Pescadero Comment
  CAS-BOT-BC410866  Dudleya caespitosa Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano Nuevo Isl. Comment
  CAS-BOT-BC410872  Dudleya caespitosa K. Nakai 1979-10-1 529 San Mateo Devils Slide on west facing granite slope along Calif. Hwy 1. Comment
  OBI25820  Dudleya farinosa Robert Honda 1970-5-17 21 San Mateo Coyote Point Comment
  SJSU16065  Dysphania ambrosioides Toni Corelli 2009-9-9 438 San Mateo Half Moon Bay State Beach, in low dunes, Half Moon Bay 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-BC208922  Echinochloa crus-galli George Oberlander 1949-9-25 393 San Mateo Upper Crystal Spr. Lake, San Francisco Watershed Reserve Comment
  CDA5626  Echium pininana T. C. Fuller 1967-6-13 15943 San Mateo North side of road to Crystal Springs, 1.2 miles east of Highway 1 at Half Moon Bay. 0 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
  JROH1914  Elatine John Hunter Thomas 1984-4-8 23276 San Mateo Jasper Ridge Biological Preserve, Stanford University 166 Comment
  CAS-BOT-BC112954  Eleocharis macrostachya George Thomas Oberlander 1950-7-15 1054 San Mateo Marsh, San Andreas Lake. Comment
  CAS-BOT-BC203881  Elymus X hansenii L. R. Abrams 1920-6-1 7492 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  UCR132239  Elymus glaucus Beecher Crampton 1962-6-11 6497 San Mateo San Francisco Peninsula, northern city limits of Pacifica along Calif. Hwy 1, just southwest of its junction with Skyline Boulevard 61 Comment
  CAS-BOT-BC203686  Elymus glaucus subsp. glaucus H. A. Borthwick 1920-5-24 179 San Mateo Santa Cruz Mountain Peninsula. La Honda Comment
  JROH5103  Elymus glaucus subsp. glaucus John H. Thomas 1971-5-30 15979 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5106  Elymus glaucus subsp. glaucus John H. Thomas 1975-5-26 17919 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5114  Elymus glaucus subsp. virescens John Rawlings 2009-9-16 1017 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few yards uphill of Trail a, about 35 yards from the lower Trail a terminus, near a large rock outcrop at the serpentine contact. 91 Comment
  SJSU15223  Elymus glaucus subsp. virescens Toni Corelli 2011-5-23 705 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail. Coastal bluff top south of Bean Hollow Beach 7 Comment
  CAS-BOT-BC235203  Elymus multisetus L. R. A. 1901-5-1 1866 San Mateo Woodside Comment
  CDA31732  Elymus multisetus I. J. Campbell 1960-4-14 4475 San Mateo Skyline Blvd., 1 mile SE of Alpine Rd. junction. 0 Comment
  JROH5279  Elymus triticoides Toni Corelli 2006-5-30 311 San Mateo Jasper Ridge Biological Preserve, Stanford University; along roadside at junction of main gate Road L and Road K to Leonard's residence 115 Comment
  CAS-BOT-BC165935  Epilobium canum Ira L. Wiggins 1980-8-29 22254 San Mateo Sandy bed of San Francisquito Creek, ca 125 m upstream from Pope Street bridge, Menlo Park Comment
  SEINET12641003  Epilobium canum E. Crawford 1982-1 s.n. San Mateo Beside highway 1, up cliff from Pomponio Beach. 37 Comment
  UCR121544  Epilobium ciliatum subsp. ciliatum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4970 A 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
  RSA181285  Epilobium ciliatum subsp. watsonii John H. Thomas 1954-6-11 4292 San Mateo About 1 mile north of Pigeon Point, near coast 30 Comment
  UC873365  Epilobium ciliatum subsp. watsonii Alice Eastwood 1912-6-3 215 San Mateo Granada Comment
  UCD105934  Epilobium ciliatum subsp. watsonii Malcolm A. Nobs; S. Galen Smith 1949-8-26 1585 San Mateo About 1 mile south of Half Moon Bay. Comment
  UC306525  Epilobium densiflorum A. D. E. Elmer June, 1903 4273 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC413802  Epilobium foliosum Robert I. Gilbreath 1973-7-1 0029 San Mateo Burlingame 182 Comment
  CAS-BOT-BC389734  Equisetum J. Lovelle 1973-8-5 48 San Mateo Pomponio Canyon Comment
  CAS-BOT-BC57029  Equisetum arvense Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo Colma Canyon Comment
  JROH56  Equisetum arvense John Hunter Thomas 1982-7-2 21049 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing Comment
  CAS-BOT-BC57028  Equisetum arvense A. D. E. Elmer 1903-5-1 4602 San Mateo Cemeteries Comment
  RSA430449  Equisetum hyemale var. affine Lyman Benson 1930-5-26 2128 San Mateo Stanford University. Lake Searsville. 152 Comment
  JROH68  Equisetum telmateia subsp. braunii Lawrence J. Winship 1974-11-2 3 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH74  Equisetum telmateia subsp. braunii Toni Corelli 2010-3-29 361 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13, south side of Leonard's Bridge 106 Comment
  POM214347  Equisetum telmateia var. braunii I. L. Wiggins 1931-3-15 5103 San Mateo Between Skyline Blvd and La Honda. Comment
  POM9508  Equisetum telmateia var. braunii C. F. Baker 1902-3-18 324 San Mateo West side King s Mountain. Comment
  RSA15287  Equisetum telmateia var. braunii C. B. Wolf 1927-4-3 255 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  SJSU15447  Eragrostis curvula John Rawlings 2009-5-1 1048 A San Mateo This ornamental grass appeared along a short stretch of San Hill Rd. at the entrance to the Horse Park at Woodside. 119 Comment
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Feb 18 2015
  JROH5142  Eragrostis pectinacea var. pectinacea John H. Thomas 1976-10-16 18407 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry delta in Searsville Lake at the mouth of Corte de Madera Creek. Comment
  JROH5721  Eragrostis pectinacea var. pectinacea John Rawlings 2015-9-22 1642 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  CAS-BOT-BC299884  Erechtites glomeratus Fred Hemphill 1973-5-14 804 San Mateo North of Malabar Road and Melendy Drive, San Carlos 207 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
  SEINET12141700  Eremocarpus setiger E. A. Purer 1933-1 5513 San Mateo Skyline Blvd Comment
  RSA10282  Erigeron glaucus H. A. Barker 1927-5-14 647 San Mateo North of Half Moon Bay. Comment
  JROH692  Erigeron karvinskianus Herbert Dengler 1965-6-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; S.F. Cr. about 2' above water - N.W. of Searsville Rocks - (about 200' below Dennis Martin mill site of ca. 1849) Comment
  CAS-BOT-BC216131  Eriodictyon californicum Fred Hemphill 1973-5-6 753 San Mateo North of Malabar Road and Melendy Dr., San Carlos 207 Comment
  CAS-BOT-BC216246  Eriodictyon californicum Lewis S. Rose 1941-7-2 41288 San Mateo King's Mountain 480 Comment
  CDA34113  Eriodictyon californicum D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .153 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  JROH2730  Eriodictyon californicum John Hunter Thomas 1981-5-14 20574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA205649  Eriodictyon californicum Lewis S. Rose; 1935-6-11 35217 San Mateo Kings Mountain Comment
  POM263620  Eriodictyon californicum L. S. Rose 1941-7-2 41288 San Mateo Kings Mountain. 480 Comment
  RSA15207  Eriodictyon californicum Carl B. Wolf 1926-10-19 90 San Mateo La Honda Grade. Santa Cruz Mtns. Comment
  RSA766407  Eriogonum caninum D. D. Keck 1931-10-5 1281 San Mateo Dam at north end of Crystal Springs Lake. Comment
  CAS-BOT-BC250542  Eriogonum gracile W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Whipple Road near Crystal Springs Lake Comment
  JEPS111098  Eriogonum gracile Zoe Ellis Chandik 1992-7-14 92 -5 San Mateo on east side of Hwy 280, 0.3 miles north of Woodside Road Comment
  UC1537293  Eriogonum gracile Gordon H. True Jr. 1937-7-31 831 San Mateo roadside, Alpine Road Alpine Road 182 Comment
  RSA18467  Eriogonum latifolium Carl B. Wolf 1927-6-29 541 San Mateo South of Pebble Beach near Pescadero. Comment
  SBBG25112  Eriogonum latifolium D. Myrick 1966-6-11 1450 San Mateo Pigeon Point on Hwy 1 S of San Francisco Comment
  SD38689  Eriogonum latifolium Edith A. Purer 1933-7-27 5370 San Mateo Sand dunes, rwo miles south of Pigeon Point Comment
  UC1442465  Eriogonum latifolium James L. Reveal 1968-8-6 San Mateo San Gregorio Beach Comment
  UCR240612  Eriogonum latifolium T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3524 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-BC251975  Eriogonum latifolium Phillip C. Wheeler 1965-5-18 s.n. San Mateo Base of the mountain adjacent to Olivet Cemetery Comment
  JEPS111093  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -1 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
  JEPS83607  Eriogonum luteolum var. luteolum Roy E. Buck, Randall A. Morgan 1984-6-17 504 San Mateo 5.7 km sw Redwood City (in area bounded by Hwy. I-280, Edgewood Rd., and Canada Rd.) 152 Comment
  JROH3230  Eriogonum luteolum var. luteolum John H. Thomas 1972-8-18 16146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC912827  Eriogonum luteolum var. luteolum Lewis S. Rose 1937-9-21 37661 San Mateo w Redwood City (Emerald Lake); Emerald Lake 182 Comment
  CAS-BOT-BC269006  Eriogonum nudum var. auriculatum Lewis S. Rose 1964-9-9 64074 San Mateo Emerald Lake, w. of Redwood City 243 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
  RSA393325  Eriogonum nudum var. auriculatum E. A. Purer 1933-7-27 5401 San Mateo Along Bayshore Highway near Redwood City Comment
  CAS-BOT-BC304068  Eriophyllum confertiflorum Evelina Cannon No date on label s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC304069  Eriophyllum confertiflorum Elsie Zeile 1909-5-20 s.n. San Mateo Burlingame 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
  RSA418518  Eriophyllum confertiflorum Jerry A. Powell 1972-3-10 910 San Mateo Mt. San Bruno Comment
  POM49712  Eriophyllum lanatum var. arachnoideum L. R. Abrams 1902-5-17 2472 San Mateo Kings Mountain Comment
  JEPS34328  Eriophyllum lanatum var. arachnoideum L. R. Heckard and Rimo Bacigalupi 1963-7-2 1334 San Mateo above summit of old country road; Montara Mt. 304 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
  POM54691  Eriophyllum staechadifolium C. F. Baker 1901-10-1 1747 San Mateo Pillar Point Comment
  UC135308  Eriophyllum staechadifolium C. F. Baker 1901-10-1 1747 San Mateo Pillar Point, along coast and in places to summit of coast range; Pacific Coast Range, Pillar Point Comment
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Feb 2 2012
  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-BC301974  Eriophyllum staechadifolium Alice Eastwood 1914-10-1 s.n. San Mateo Mussel Rock Comment
  RSA116778  Eriophyllum staechadifolium W. R. Dudley 1898-1-4 s.n. San Mateo Bank of Ocean Shore- mouth of Waddell Creek. Santa Cruz Mountain Peninsula Comment
  RSA1946  Eriophyllum staechadifolium C. B. Wolf 1930-11-5 1808 San Mateo Hills near the ocean, 2 miles south of Pescadero 61 Comment
  UC31755  Eriophyllum staechadifolium Albert Kellogg San Mateo Schoolhouse Station Comment
  CDA5407  Eriophyllum staechadifolium var. artemisiifolium F. E. Blanc 1960-6-28 4566 San Mateo 1 mile north of Half Moon Bay. 0 Comment
  JEPS121483  Erodium botrys Adam C. Schneider 2013-5-17 140 San Mateo Crystal Springs Reservoir Comment
  JEPS121446  Erodium cicutarium Adam C. Schneider with C. Matt Guilliams 2013-2-2 14 San Mateo Crystal Springs Reservoir Comment
  JROH2609  Erodium moschatum John Rawlings 2013-4-30 1174 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd. B vicinity of Dennis Martin site. 79 Comment
  SEINET7062816  Eryngium armatum A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach west of Pescadero. UTM Zone 10, 551765mE, 4121313mN. (WGS84/NAD83). 0 Comment
  SJSU16023  Eryngium armatum John Rawlings, Toni Corelli 2016-5-13 1792 San Mateo Vallemar Bluff, Moss Beach. USGS Montara Mountain OE W 7.5 Minute (1:24,000 Scale) Topographic Map. 11 Comment
  SJSU2305  Eryngium armatum C. W. Sharsmith 1950-4-16 6634 San Mateo near Pescadero Point near Pescadero Comment
  UC874915  Eryngium armatum Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9296 San Mateo Ano Nuevo Point 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-BC54837  Erysimum franciscanum G. B. Rossbach 1955-3-26 576 San Mateo Upper north slope of San Bruno Mountain north of Radio tower. 335 Comment
  CAS-BOT-BC54854  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-4-2 906 a fl. 906b fr. San Mateo Fifield Ridge, just above San Mateo Creek and north of Pilarcitos Lake. 243 Comment
  CAS-BOT-BC54883  Erysimum franciscanum Phillip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountains. Colma Canyon - east end. Comment
  RSA101842A  Erysimum franciscanum G. B. Rossbach 1939-4-2 908 -a San Mateo Just above and west of South end of San andreas Lake 213 Comment
  RSA101842B  Erysimum franciscanum G. B. Rossbach 1939-4-2 908 -b San Mateo Just above and west of South end of San andreas Lake 213 Comment
  RSA102123  Erysimum franciscanum G. B. Rossbach 1955-3-26 576 San Mateo Upper N slope of San Bruno Mountain, N of radio tower 335 Comment
  UC1034726  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 900 a&b San Mateo 2.5 mi n Montara (near Devil's Slide, steep granitic slope above sea) Comment
  UC1034947  Erysimum franciscanum G. B. and R. P. Rossbach 1939-6-4 915 San Mateo w slope of ridge between Crystal Springs Lake and San Andreas Lake (small isolated pinnacle); Buriburi Ridge 121 Comment
  UC1034949  Erysimum franciscanum G. B. and R. P. Rossbach 1938-4-3 806 San Mateo crests and steep upper slopes San Bruno Hills 304 Comment
  UC10577  Erysimum franciscanum J. Burtt Davy 1895-4-20 1070 San Mateo Crystal Springs Lake Comment
  UC1301015  Erysimum franciscanum Helen K. Sharsmith 1963-2-16 5144 San Mateo summit San Francisco Bay Region, San Bruno Mountain 396 Comment
  UC765069  Erysimum franciscanum R. F. Hoover 1941-4-23 4903 San Mateo rocky hill near Crystal Springs Dam Comment
  CAS-BOT-BC54858  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-5-12 912 San Mateo Slope of headland above sea, Padro Point. Comment
  CAS-BOT-BC54859  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-5-12 912 San Mateo Slope of headland above sea, Padro Point. Comment
  JROH5683  Erythranthe microphylla John Rawlings 2015-3-15 1357 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine north side of ridge. 176 Comment
  CAS-BOT-BC403560  Eschscholzia californica Walter Knight; Irja Knight 1964-4-25 632 San Mateo San Bruno Mountain. Power Line Ridge Comment
  JROH3098  Eschscholzia californica John H. Thomas 1975-4-5 17713 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403533  Eschscholzia californica Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  OBI48876  Eschscholzia californica S. Bagley 1969-3-28 San Mateo Near the San Fernando Game refuge 145 Comment
  RSA445604  Eschscholzia californica subsp. californica E. A. Purer 1933-7-27 5384 San Mateo Two miles south of Pigeon Point Comment
  CAS-BOT-BC202745  Euonymus occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Along Pescadero Creek, near Iversons Comment
  POM202650  Euonymus occidentalis Alice Eastwood 1933-5-31 18843 San Mateo Butano Canyon. Comment
  POM278183  Euonymus occidentalis Lyman Benson 1937-8-15 8488 San Mateo Upper San Francisquito Creek, Mt. Range: Santa Cruz; Watershed: San Francisco Bay. 244 Comment
  RSA116766  Euonymus occidentalis Elmer I. Applegate 1895-5-11 s.n. San Mateo Near Searsville Dam; Santa Cruz Mountain Peninsula. Comment
  JROH1796  Euonymus occidentalis var. occidentalis Volney Rattan May s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Searsville Comment
  POM126400  Euphorbia crenulata R. L. Pendleton 1907-4-20 604 San Mateo Colma Comment
  RSA130685  Euphorbia crenulata C. F. (illegible) 1894-3-28 s.n. San Mateo Lobitas road. Comment
  JROH1975  Euphorbia spathulata John H. Thomas 1974-4-4 17083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1970  Euphorbia spathulata Herbert Dengler 1963-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 500' N.E. of serp. Comment
  POM223330  Euphorbia spathulata L. S. Rose 1935-5-4 35151 San Mateo Burlingame. Comment
  JROH5472  Festuca bromoides John Hunter Thomas 1981-4-23 20492 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278348  Festuca californica subsp. californica James McMurphy 1906-5-20 s.n. San Mateo Road to Kings Mt. Comment
  CAS-BOT-BC278357  Festuca californica subsp. californica W. R. Dudley 1902-4-26 s.n. San Mateo By Alpine Road 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
  RSA6292  Festuca californica var. californica D. D. Keck 1932-5-11 1499 San Mateo Above Woodside on La Honda Road, east slope of Santa Cruz Mountains Comment
  CAS-BOT-BC282497  Festuca elmeri Peter H. Raven 1950-6-3 2252 San Mateo Woods around San Andreas Lake 121 Comment
  SJSU11266  Festuca idahoensis S. H. Casey 1980-6-13 1158 San Mateo Los Trancos Woods 609 Comment
  UCD163541  Festuca idahoensis Peter Rubtzoff 1980-5-3 9436 San Mateo San Bruno Mountains. The Edward Preston Lee Memorial Site and vicinity. Comment
  JROH5489  Festuca microstachys S. J. McNaughton 1966-3-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. East slopes of serpentine grasslands in Ehrlich's area H. Comment
  JROH5501  Festuca myuros Stephen N. Turitzin 1975-5-7 3 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH6208  Festuca myuros John Rawlings 2014-3-25 1240 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 at the Zoology Cabin foundation site. 75 Comment
  JEPS21675  Festuca occidentalis W. R. Dudley 1895-6-1 San Mateo Pescadero Creek Comment
  JROH5508  Festuca octoflora Herb Dengler 1963-5-26 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of Ridge. Comment
  CAS-BOT-BC77694  Ficus carica John H. Thomas 1960-6-25 8795 San Mateo Redwood City, running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street 7 Comment
  RSA159417  Filago gallica John H. Thomas 1961-5-7 9249 San Mateo Colma, near intersection of El Camino Real and F Street 46 Comment
  CAS-BOT-BC304294  Filago pyramidata Walter & Irja Knight 1967-5-16 s.n. San Mateo San Bruno Mt. Randolph Ave, South San Francisco Comment
  CDA33775  Fragaria chiloensis D. G. Kelch 2011-3-13 11 .048 San Mateo Pacifica. Along sea bluffs Comment
  RSA499458  Fragaria chiloensis E. A. Purer 1933-7-27 5386 San Mateo Two miles south of Pigeon Point. Comment
  CAS-BOT-BC437028  Fragaria chiloensis A. D. E. Elmer 1903-4-1 4799 San Mateo San Pedro Comment
  CAS-BOT-BC437029  Fragaria chiloensis A. D. E. Elmer 1903-4-1 4799 San Mateo San Pedro Comment
  UC466551  Fragaria chiloensis Franklin P. Nutting Apr 1895 San Mateo Comment
  JROH3668  Fragaria vesca John Hunter Thomas 1981-4-23 20486 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC457511  Fragaria vesca subsp. californica Elizabeth McClintock; Paul Reeberg 1989-2-4 s.n. San Mateo Between Poison Oak Ravine and Tank Ravine, San Bruno Mountains Comment
  CAS-BOT-BC457518  Fragaria vesca subsp. californica James McMurphy 1906-4-30 s.n. San Mateo on top of grade between Portola and Woodside Comment
  CAS-BOT-BC457519  Fragaria vesca subsp. californica Margaret A. Barry 1937-4-21 6 San Mateo woods on Coal Mine Ridge Comment
  CAS-BOT-BC457527  Fragaria vesca subsp. californica George Oberlander 1949-4-9 58 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  JROH3552  Frangula californica subsp. californica John Hunter Thomas 1992-5-25 25346 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of chaparral on serpentine. Comment
  SEINET6671082 Image available Frankenia grandifolia Lewis S. Rose 1938-1 38230 San Mateo Brisbane 2 Comment
  CAS-BOT-BC211602  Frankenia salina John Hunter Thomas 1949-10-16 1142 San Mateo Along ocean bluff, just north of outlet of San Gregorio Creek 60 Comment
  RSA391413  Frankenia salina E. A. Purer 1933-8-13 s.n. San Mateo Belmont Comment
  SD38247  Frankenia salina Edith A. Purer 1933-8-13 5415 San Mateo Near bay, Belmont. Comment
  CAS-BOT-BC223550  Fraxinus latifolia Herman Knoche 1919-10-8 Series A, No. 2488 San Mateo Between Crystal Springs & San Mateo Comment
  CAS-BOT-BC223554  Fraxinus latifolia A. D. E. Elmer 1903-7-1 4615 San Mateo San Mateo Comment
  CAS-BOT-BC130119  Fritillaria affinis L. S. Rose 1927-3-24 s.n. San Mateo Crystal Springs Lakes Comment
  CAS-BOT-BC130127  Fritillaria affinis Javier Penalosa 1963-3-9 2702 San Mateo Ravine 1/2 mi. east of 1314 ft. summit 304 Comment
  JROH4681  Fritillaria affinis John H. Thomas 1961-5-5 9214 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below Searsville Dam 76 Comment
  POM169866  Fritillaria affinis A. D. E. Elmer 1903-05 5045 San Mateo Portola Comment
  SDSU20649  Fritillaria affinis Sean Ryan, Neal Kramer 2011-3-25 84 San Mateo N-facing slope 50m west of a jeep turnabout ~1.34mi E of where Bean Hollow Rd. crosses Lake Lucerne. 200m E of Arroyo de los Frijoles. Cloverdale Ranch. 112 Comment
  UC1206468  Fritillaria affinis Le Roy Abrams 1902-4-13 2339 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC130118  Fritillaria affinis Walter Knight; Irja Knight 1965-3-21 990 San Mateo Trillium Gulch near Knife Edge Rock Comment
  JEPS4952 Image available Fritillaria biflora var. ineziana Inez Smith 1914-3-12 San Mateo Hillsboro; ; Hillsboro, San Mateo Co. Comment
  SEINET3886769  Fritillaria lanceolata Robert A. Norris 1984-3-21 4649 San Mateo By Radio Road, San Bruno Mts.; 0 253 Comment
  CAS-BOT-BC130381  Fritillaria liliacea H. E. Parks; S. T. Parks 1930-3-10 0400 San Mateo Spring Valley Lakes 152 Comment
  UC535103  Fritillaria liliacea H. E. and S. T. Parks 1930-3-10 400 San Mateo Spring Valley Lakes 152 Comment
  CAS-BOT-BC130377  Fritillaria liliacea Gladys L. Smith; Marion Gallagher 1978-5-1 4805 San Mateo Spring Valley Watershed along Old Skyline, exactly opposite statue of Father Serra on 280 Comment
  SEINET12044983  Fritillaria liliacea L. S. Rose 1933-1 33049 San Mateo Redwood City Comment
  UC1442617  Fritillaria liliacea Theodore F. Niehaus 1978-3-9 78945 San Mateo 0.2 mi nw of Polhemus Road (on Tower Road to San Mateo County Juvenile jail) Comment
  UCD165021  Galium aparine Peter Rubtzoff; Roman Gankin 1975-5-21 7966 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC183624  Galium aparine Peter Rubtzoff 1977-4-14 8939 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA130682  Galium aparine James I. McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Springs Lakes Comment
  CDA9440  Galium californicum D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JEPS27349  Galium californicum subsp. californicum Rimo Bacigalupi with L. R. Heckard and Jim Roof 1961-4-24 7610 San Mateo just below rocky spur due north of true summit (directly below and ne of KQED radio power station); San Bruno Mountain 342 Comment
  JROH3785  Galium murale John H. Thomas 1958-5-10 7138 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3796  Galium murale John H. Thomas 1974-4-25 17217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3793  Galium murale John H. Thomas 1969-4-12 14891 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near redwoods below dam Comment
  JEPS83562  Galium trifidum var. pacificum Dean W. Taylor 1987-8-20 9310 San Mateo between Whitehorse Creek and Cascade Creek (about spring/seep); Santa Cruz Mts., Cascade Ranch state park area 76 Comment
  JROH5574  Gamochaeta ustulata John H. Thomas 1962-5-31 9896 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of the ridge Comment
  JROH799  Gamochaeta ustulata John Hunter Thomas 1985-5-7 23644 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC483490  Gamochaeta ustulata Ira L. Wiggins 1929-7-4 3772 San Mateo 4 mi w La Honda (on hill road to Pescadero Beach) Comment
  CAS-BOT-BC303465  Gamochaeta ustulata Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo Upper Colma Canyon, San Bruno Mt Comment
  CAS-BOT-BC194556  Garrya elliptica Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo In old quarry in Colma Canyon Comment
  CAS-BOT-BC194567  Garrya elliptica W. R. Dudley 1895-2-10 s.n. San Mateo San Mateo Ravine by Road above Pt. of Rocks Comment
  SD12562  Garrya elliptica Gill D. Demaree 1930-2-1 San Mateo Road to Los Trancos Woods Comment
  UC1140923  Garrya elliptica W. R. Dudley 1895-2-10 San Mateo San Mateo Ravine Santa Cruz Peninsula (by road above point of rocks) Comment
  RSA116686  Garrya elliptica Helen M. Edwards 1917-02 s.n. San Mateo Los Traucos Canon [Canyon]. Comment
  JROH5183  Gastridium phleoides John H. Thomas 1967-5-31 12920 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5195  Gastridium phleoides John Hunter Thomas 1984-5-2 23327 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC219144  Genista monspessulana Ira L. Wiggins 1929-7-4 3790 San Mateo Moist ravine 4 mi. W. of La Honda on Hill road to Pescadero Beach Comment
  RSA0028486  Geranium dissectum John H. Thomas 1954-4-3 3825 San Mateo San Gregorio Creek drainage, 1.2 miles inland from San Gregorio. 61 Comment
  RSA0028489  Geranium dissectum Josephine Randall 1907-6-29 149 San Mateo Portola Valley. Comment
  JROH2630  Geranium molle John Hunter Thomas 1984-5-3 23335 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA20368  Gilia angelensis C. B. Wolf 1938-4-24 9401 San Mateo 1/4 mile SW of the San Francisquito Creek bridge back of Stanford University. 61 Comment
  CAS-BOT-BC303680  Glebionis coronaria J. H. Thomas 1961-5-7 9321 San Mateo San Bruno Mt. At W end of mountain 243 Comment
  CAS-BOT-BC303684  Glebionis coronaria Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mt. Crocker Ave Comment
  CAS-BOT-BC303825  Gnaphalium John H. Thomas 1965-4-29 10612 San Mateo San Bruno Mt in N part of county 396 Comment
  SEINET11849355  Gnaphalium chilense M. T. Doutt 1931-1 424 San Mateo Portola Comment
  RSA91707  Gnaphalium luteoalbum J. T. Howell 1935-1-13 12578 San Mateo Lake San Andreas. Comment
  SEINET3386993 Image available Gnaphalium ramosissimum Lewis S. Rose 1935-8-13 35568 San Mateo Salada, Brushy coastal hills. 30 Comment
  UCD132477  Grindelia camporum John Thomas Howell 1964-12-6 41032 San Mateo Vacant lot near Southern Pacific Railroad station, Millbrae. 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-BC304523  Grindelia hirsutula H. E. McMinn 1922-6-22 252 San Mateo Near Half Moon Bay (?). Coast road to Half Moon Bay Comment
  CAS-BOT-BC304535  Grindelia hirsutula George Oberlander 1950-7-15 1099 San Mateo San Francisco Watershed Reserve. Northern Cahill Ridge Comment
  CAS-BOT-BC304546  Grindelia hirsutula Peter H. Raven 1957-9-1 11297 San Mateo State Highway 1 at junction of Tunitas Creek Comment
  CAS-BOT-BC304553  Grindelia hirsutula A. D. E. Elmer 1903-6-1 4267 San Mateo Crystal Springs Lake Comment
  JEPS29411  Grindelia hirsutula L. R. Heckard 1961-7-16 1258 San Mateo slope to the ne transmitting station KQED (near summit of San Bruno Mt.); San Bruno Mt. 335 Comment
  JEPS29417  Grindelia hirsutula L. R. Heckard 1961-7-16 1264 San Mateo across road from transmitting station KQED (near summit of San Bruno Mt.); San Bruno Mt. 335 Comment
  UC1118555  Grindelia hirsutula G. E. Sindel 1935-7-25 309 San Mateo 0.25 mi n of Pescadero Creek (near mouth) Santa Cruz Quadrangle 6 Comment
  UC1536845  Grindelia hirsutula G. H. True 1936-6-7 480 San Mateo cove 2 mi s Pescadero 15 Comment
  JROH826  Grindelia hirsutula John Hunter Thomas 1987-5-26 24316 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7010152  Grindelia humilis R. A. Evers, Clara V. Evers 1975-8-24 115023 San Mateo Trailer Villa, Redwood City. Comment
  RSA0110999  Grindelia stricta var. angustifolia E. A. Purer 1933-8-26 5525 San Mateo Along highway. [No further location information.] Comment
  POM359102  Grindelia stricta var. platyphylla E. A. Purer 1933-7-27 18776 San Mateo Two miles south of Pigeon Point Comment
  RSA18345  Grindelia stricta var. platyphylla C. B. Wolf 1927-1-29 473 San Mateo Pescadero Comment
  CAS-BOT-BC282868  Hainardia cylindrica A. G. Vestal 1926-5-1 s.n. San Mateo San Pedro Point Comment
  JROH5202  Hainardia cylindrica John Rawlings 2005-5-30 1007 San Mateo Jasper Ridge Biological Preserve, Stanford University. At back of field station at edge of brick patio. 121 Comment
  CAS-BOT-BC309542  Helenium puberulum A. D. E. Elmer 1903-7-1 4972 San Mateo Crystal Springs Lake Comment
  SJSU15964  Helenium puberulum John Rawlings, Ken Hickman 2016-5-26 1841 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
  UC1192221  Helenium puberulum Malcolm A. Nobs and S. Galen Smith 1949-8-25 1576 San Mateo marsh s of Rockaway Beach Comment
  UC943014  Helenium puberulum Lewis S. Rose 1949-8-10 49157 San Mateo Skyline Blvd. w Tanforan 121 Comment
  CAS-BOT-BC309530  Helenium puberulum E. M. Zeile 1921-7-30 1132 San Mateo Mussel Rock Comment
  RSA70702  Helenium puberulum L. S. Rose 1949-8-10 49157 San Mateo Skyline Blvd, W of Tanforan 122 Comment
  POM161135  Helianthella californica var. californica James I. McMurphy 1911-5-9 s.n. San Mateo Jasper Ridge. Plants of the Santa Cruz Mountain Peninsula. Comment
  JROH1834  Helianthemum scoparium John H. Thomas 1961-6-14 9537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305364  Helianthus annuus Ned Cahill 1974-10-8 373 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SD39698  Heliotropium curassavicum Edith A. Purer 1932-7-18 4010 San Mateo Half Moon Bay Comment
  POM305857  Heliotropium curassavicum var. oculatum Henry J. Ramsey, Henry J. Ramsey 1939-10-7 1163 San Mateo San Mateo Comment
  CAS-BOT-BC305922  Helminthotheca echioides Ira L. Wiggins 1979-8-26 22243 San Mateo Alley between Central and Woodland Avenues, running from Pope to Gilbert Streets, Menlo Park Comment
  CAS-BOT-BC314936  Hemizonia congesta subsp. luzulifolia C. F. Baker 1903-6-30 3350 San Mateo Crystal Springs Comment
  CAS-BOT-BC314945  Hemizonia congesta subsp. luzulifolia A. D. E. Elmer 1903-5-1 4805 San Mateo Crystal Springs Lake Comment
  JROH865  Hemizonia congesta subsp. luzulifolia John H. Thomas 1967-11-5 14129 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG28892  Hemizonia congesta subsp. luzulifolia L. S. Rose 1935-9-21 San Mateo Redwood City Comment
  UC1069542  Hemizonia congesta subsp. luzulifolia G. E. Sindel 1935-8-28 342 San Mateo 2 mi se Crystal Springs Lake; Santa Cruz Quad. 167 Comment
  UC990621  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-5-25 San Mateo summit between San Mateo and Crystal Springs Lakes Comment
  SEINET7883478 Image available Hemizonia luzulifolia Lewis S. Rose 1941-1 41470 San Mateo Belmont 6 Comment
  JROH252  Heracleum maximum John Hunter Thomas 1986-5-1 23989 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing near San Francisquito Creek Comment
  JROH887  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1978-4-22 19109 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH889  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-4-23 20483 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB24049  Hesperocyparis abramsiana Dutton, H. 1949-9-19 San Mateo Common corners of sections 11 & 12 and 13 & 14 Range 4 West, on the north bank of the North Fork of Butano Creek Comment
  UCSB11749  Hesperocyparis macrocarpa Olson, Jim 1962-4-13 San Mateo 1 mile south of Halfmoon Bay, on Halfmoon Bay to San Mateo Road 9 Comment
  CAS-BOT-BC176205  Hesperolinon congestum L. S. Rose 1931-5-15 s.n. San Mateo Emerald Lake west of Redwood City Comment
  JEPS122848  Hesperolinon congestum Adam C. Schneider 2013-5-17 172 San Mateo Crystal Springs Reservoir Comment
  RSA187457  Hesperolinon congestum L. R. Abrams 1920-6-1 7497 San Mateo Back of Redwood City. Comment
  SJSU12753  Hesperolinon congestum S. C. Sommers 1986-5-8 San Mateo W side Edgewood County Park near junction of Hwy 280 & Edgewood Rd, Redwood City Comment
  UC1601216  Hesperolinon micranthum Helen K. Sharsmith 1947-6-3 3976 San Mateo near upper Crystal Springs Lake; Outer South Coast Ranges 152 Comment
  CAS-BOT-BC148467  Heteromeles arbutifolia George Oberlander 1949-7-10 281 San Mateo Sweeney Ridge - San Francisco Watershed Reserve Comment
  JROH3676  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge Biological Preserve, Stanford University. North central portion of ridge Comment
  JROH3685  Heteromeles arbutifolia John Hunter Thomas 1988-6-26 24529 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC942934  Heteromeles arbutifolia Lewis S. Rose 1948-11-25 48241 San Mateo Woodside 365 Comment
  JROH907  Heterotheca grandiflora John Hunter Thomas 1991-11-21 25110 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  JROH909  Heterotheca sessiliflora subsp. echioides Carol Zabel 2006-7-24 59 San Mateo Jasper Ridge Biological Preserve, Stanford University; slope by trail to old boat landing below Field Station Comment
  UC202810  Heuchera micrantha var. diversifolia A. D. E. Elmer July, 1903 4762 San Mateo Pilarcitos Stone Dam 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
  CAS-BOT-BC424429  Heuchera pilosissima W. R. Dudley 1900-3-17 s.n. San Mateo By down grade from Montara Mts to San Pedro Comment
  CAS-BOT-BC424430  Heuchera pilosissima H. L. Mason 1921-6-2 s.n. San Mateo Hill near Pebble Beach, Pescadero Comment
  CAS-BOT-BC319632  Hieracium albiflorum H. L. Mason 1921-7-14 s.n. San Mateo Pescadero Creek Comment
  SEINET10598881  Hierochloe occidentalis Charles F. Baker 1902-1-15 Baker 247 San Mateo West side King's Mountain. About ledges and rocky places Comment
  RSA134378  Hoita orbicularis L. S. Rose 1959-6-24 59031 San Mateo San Mateo, Black Mtn. Rd. near Skyline Blvd. 122 Comment
  LA207940  Holodiscus discolor David D. Keck; 1932-6-1 1795 San Mateo Santa Cruz Mountains, Above Searsville Lake, on road between Woodside and Skyline Blvd 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
  UC1127995  Holodiscus discolor G. E. Sindel 1935-7-23 297 San Mateo 3/4 mi e of Jones Gulch 274 Comment
  UCR122982  Holodiscus discolor George K. Helmkamp, E. A. Helmkamp 2001-6-2 6781 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
  CAS-BOT-BC150052  Holodiscus discolor var. discolor W. R. Dudley 1894-7-7 s.n. San Mateo Near Mountain Summit, Bear Gulch Road 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
  CAS-BOT-BC150066  Holodiscus discolor var. discolor Lucile Roush 1918-3-31 s.n. San Mateo Sierra Morena Comment
  POM205104  Hordeum brachyantherum E. B. Copeland 1903-6-10 3304 San Mateo Montara Point. Comment
  CDA32405  Hordeum brachyantherum G. M. Gregory 1962-5-1 San Mateo Crocker Hills, Brisbane 0 Comment
  CAS-BOT-BC284674  Hordeum brachyantherum subsp. brachyantherum Javier Penalosa 1963-3-30 2733 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 289 Comment
  CAS-BOT-BC285045  Hordeum depressum John Thomas Howell No date on label 28969 San Mateo Redwood City Comment
  JROH5243  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1981-5-14 20579 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5246  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1986-5-17 24050 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dam to Rattlesnake Rock. Comment
  SD39730  Hordeum murinum subsp. leporinum Edith A. Purer 1933-7-27 5372 San Mateo Sand dunes, two miles south of Pigeon Point Comment
  CAS-BOT-BC271400  Hordeum vulgare John H. Thomas 1974-4-11 17123 San Mateo Area to the SE of Canada Road and Edgewood Road, NW of Woodside 152 Comment
  RSA18459  Horkelia californica Carl B. Wolf 1927-6-29 548 San Mateo South of Pebble Beach near Pescadero. Comment
  CAS-BOT-BC536153  Horkelia californica Lewis S. Rose 1966-8-20 66086 San Mateo Head of Colma Canyon, San Bruno Mountain 205 Comment
  OBI10116  Horkelia californica Lewis S. Rose 1966-8-20 66086 San Mateo San Bruno Mtn. Head of Colma Cyn 206 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
  CAS-BOT-BC143922  Horkelia cuneata var. sericea W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  CAS-BOT-BC311397  Hypochaeris glabra Fred Hemphill 1973-4-22 778 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH916  Hypochaeris glabra John H. Thomas 1973-4-20 16581 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH937  Hypochaeris radicata John Hunter Thomas 1987-5-5 24239 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH939  Hypochaeris radicata John Hunter Thomas 1988-5-3 24441 San Mateo Jasper Ridge Biological Preserve, Stanford University; near causeway Comment
  POM55230  Hypochaeris radicata A. D. E. Elmer 1903-04 4861 San Mateo Lake San Andreas Comment
  JROH5581  Impatiens balfourii John Rawlings 2013-7-2 1193 San Mateo Jasper Ridge Biological Preserve, Stanford University; downstream of Low Flow Crossing and about 100 m north of serpentine contact 78 Comment
  POM168922  Iris douglasiana C. F. Baker 1902-3-22 343 San Mateo Crystal Springs Lake Comment
  RSA127080  Iris douglasiana John H. Thomas 1959-4-4 7656 San Mateo About 0.7 miles S. of Gazos Creek. About 6.5 miles southward from Pescadero. 46 Comment
  SJSU2307  Iris douglasiana C. W. Sharsmith 1950-4-16 6636 San Mateo near Pescadero Point near Pescadero Comment
  SEINET12049523  Iris douglasiana D. D. Keck 1932-1 1486 San Mateo just W of Millbrae Highlands 120 Comment
  SEINET12056857  Iris douglasiana G. A. McCallum 1933-1 s.n. San Mateo La Honda Comment
  SD168142  Iris macrosiphon Phil Rundel 1963-6-11 1116 San Mateo La Honda Road. (IPB 12/07) 459 Comment
  CAS-BOT-BC57733  Isoetes howellii L. R. Abrams 1923-4-19 10108 San Mateo Alameda de los Pulgas back of Menlo Park Comment
  RSA116774  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley pond. Comment
  CAS-BOT-BC112620  Isolepis cernua W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Beach pasture, Pescadero Comment
  CAS-BOT-BC112624  Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point Comment
  JEPS91027  Isolepis cernua Dean W. Taylor 1991-5-20 11793 San Mateo Santa Cruz Mountains, Pescadero Creek 0.3 mi s ofrom the creek mouth, w of Highway 1 Pescadero Creek; Santa Cruz Mountains, Pescadero Creek 9 Comment
  UCD49893  Isolepis cernua S. Galen Smith; Malcolm A. Nobs 1949-8-25 1565 San Mateo Marshes at Sharp Park, San Mateo County. Comment
  SBBG28003  Jaumea carnosa L. S. Rose 1935-8-13 San Mateo Salada Comment
  JROH4462  Juncus bufonius var. occidentalis John H. Thomas 1968-3-31 14260 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR244653  Juncus lescurii Peter Rubtzoff 1976-6-30 8708 San Mateo Central Coast, San Bruno Mountains. 'Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence 220 Comment
  CAS-BOT-BC173845  Juncus occidentalis Peter Rubtzoff 1978-7-8 9222 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  JROH5797  Juncus phaeocephalus John Rawlings 2016-5-3 1779 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Trail 9 and west of Rd F in contact drainage 185 Comment
  JROH4503  Juncus phaeocephalus var. paniculatus Toni Corelli, John Rawlings 2007-9-26 0341 San Mateo Jasper Ridge Biological Preserve, Stanford University. Seasonally wet area east of Trail 10. 178 Comment
  JROH4506  Juncus xiphioides John H. Thomas 1967-6-1 12977 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4042  Kickxia spuria H. J. Dengler 1965-8-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in S.F. Creek bed just below N. bend Comment
  POM190453  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  RSA87125  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  SJSU15768  Koeleria macrantha Toni Corelli 2010-4-16 615 San Mateo Pedro Point Headlands, Pacifica CA. Off of South Ridge Road Trail 180 Comment
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Sep 10 2021
  SJSU1653  Koeleria macrantha D. R. Fincher 1955-5-29 San Mateo corner of Canada Road & Edgewood Road, San Mateo 503 Comment
  UCD86030  Koeleria macrantha P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  CAS-BOT-BC273738  Koeleria pyramidata Ned Cahill 1974-4-30 226 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC341633  Lagophylla ramosissima LeRoy Abrams 1902-9-28 3003 San Mateo Portola Comment
  JROH959  Lagophylla ramosissima John H. Thomas 1961-4-29 9192 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH961  Lagophylla ramosissima John H. Thomas 1969-5-28 15087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH966  Lagophylla ramosissima John Hunter Thomas 1983-7-20 22900 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC272430  Lamarckia aurea W. R. Dudley 1906-5-19 s.n. San Mateo Hillside toward Cordilleras Creek and Whipple Road on Britton Ranch west of Redwood City, Santa Cruz Peninsula Comment
  UC570744  Lamium amplexicaule Herbert L. Mason 1927-4-24 3703 San Mateo mouth of San Gregorio Creek Comment
  JROH5632  Lapsana communis John Rawlings 2014-5-28 1244 San Mateo Jasper Ridge Biological Preserve, Stanford University. NW end of the Low Flow Crossing, San Francisquito Creek. 81 Comment
  CAS-BOT-BC337879  Lapsana communis L. R. Abrams 1927-7-20 12179 San Mateo Santa Cruz Mountain Peninsula. La Honda Creek, about 1 mi above La Honda Comment
  UCSC003372  Lasthenia Randall Morgan 2001-5-9 3726 San Mateo Bean Hollow State Beach, San Mateo County Comment
  JEPS23589  Lasthenia californica subsp. macrantha Adele Lewis Grant 1917-5-6 939 San Mateo Pebble Beach near Pescadero 3 Comment
  SEINET11811268  Lasthenia chrysostoma M. T. Doutt 1931-1 414 San Mateo Skyline Blvd, W of Hillbrae 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
  SEINET3147835  Lasthenia glabrata subsp. glabrata E. L. Greene 1886-5-11 sn San Mateo Belmont Comment
  CAS-BOT-BC360402  Lasthenia glabrata var. glabrata Ned Cahill 1974-4-18 130 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  UC311550  Lasthenia gracilis A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills Comment
  RSA18351  Lasthenia macrantha subsp. macrantha C. B. Wolf 1927-1-29 s.n. San Mateo Pescadero Comment
  CAS-BOT-BC361417  Lasthenia maritima Sue Roberts 1954-5-1 69 San Mateo Pescadero Beach Comment
  JEPS35423  Lasthenia minor W. L. Jepson 1921-4-3 9112 San Mateo near Colma; Colma Canyon Comment
  RSA51309  Lasthenia minor Peter H. Raven 1950-4-30 1953 San Mateo Montara. 15 Comment
  RSA406617  Lathyrus Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  JROH2029  Lathyrus latifolius Ann Lambrecht 2006-8-23 27 San Mateo Jasper Ridge Biological Preserve, Stanford University; downstream from low-flow crossing about 50 m Comment
  POM277778  Lathyrus polyphyllus Lyman Benson 1930-5-3 2103 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  SEINET3557952 Image available Lathyrus vestitus Lewis S. Rose 1932-5-3 32208 San Mateo San Bruno. 183 Comment
  POM19350  Lathyrus vestitus subsp. vestitus C. F. Baker 1902-5-10 8256 San Mateo Summit of Coast Range. Comment
  JEPS55372  Lathyrus vestitus var. vestitus R. L. Pendleton 1907-4-20 626 San Mateo Colma 182 Comment
  UC75194  Lathyrus vestitus var. vestitus unknown 1903-4-6 1893 San Mateo San Bruno Hills Comment
  JEPS17917  Lavatera arborea Rimo Bacigalupi 1955-8-4 5450 San Mateo just n Montara Point lighthouse (at town of Montara); Montara Comment
  CAS-BOT-BC323153  Layia chrysanthemoides David D. Keck 1932-5-6 1487 San Mateo Near Skyline Boulevard, west of Millbrae Highlands. Comment
  CAS-BOT-BC323161  Layia chrysanthemoides David D. Keck 1932-4-29 1450 San Mateo Redwood City. Comment
  UC89164  Layia chrysanthemoides K. Brandegee 1885-5-1 San Mateo Millbrae Comment
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Sep 9 2011
  CAS-BOT-BC321068  Layia gaillardioides A. D. E. Elmer 1903-6-1 4261 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC321069  Layia gaillardioides Lewis S. Rose 1935-5-4 35149 San Mateo Burlingame Comment
  UC89182  Layia gaillardioides Alice Eastwood 1899-5-2 San Mateo near Pt. San Pedro Comment
  CAS-BOT-BC321096  Layia gaillardioides W. R. Dudley 1905-6-19 s.n. San Mateo Alpine School, Black Mt. Comment
  JROH6201  Layia hieracioides John Rawlings 2014-5-6 1230 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  POM298251  Layia hieracioides D. D. Keck 1932-6-1 1796 San Mateo Above Searsville Lake, on la Honda Road, east slope of Santa Cruz Mts. Comment
  UC828937  Layia hieracioides Lewis S. Rose 1933-6-9 33218 San Mateo 3 mi w of San Bruno Comment
  CAS-BOT-BC327455  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo Skyline Boulevard, east of Salada, northern San Mateo County. Comment
  CAS-BOT-BC327501  Layia hieracioides John Thomas Howell 1938-5-1 13769 San Mateo Colma Canyon [written on sheet in other hand: San Bruno Hills, acc. J.T.H. notebook] Comment
  CAS-BOT-BC327508  Layia hieracioides L. R. Abrams 1907-8-26 s.n. San Mateo King's Mt., Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC327509  Layia hieracioides W. R. Dudley 1900-5-19 s.n. San Mateo La Honda Stage Road below Grand View Saloon Comment
  CAS-BOT-BC327511  Layia hieracioides C. G. Pringle 1882-7-11 s.n. San Mateo Aptos Comment
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Oct 28 2021
  CAS-BOT-BC327527  Layia hieracioides James I. McMurphy 1909-5-25 s.n. San Mateo Grade W of Crystal Springs Lakes Comment
  SBBG39520  Layia platyglossa L. S. Rose 1970-5-3 San Mateo Black Mtn, Skyline Blvd, W of San Mateo 121 Comment
  CAS-BOT-BC382078  Layia platyglossa James I. McMurphy 1909-5-26 s.n. San Mateo Above La Honda Comment
  CAS-BOT-BC382079  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Srpings Lake Comment
  CAS-BOT-BC382082  Layia platyglossa Arthur Spiegler 1952-4-26 25 San Mateo 4 miles from Woodside on Canada Road to Skyline Blvd Comment
  CAS-BOT-BC382092  Layia platyglossa John H. Thomas 1969-4-24 14910 San Mateo Near Canada College, Redwood City, near Farm Hill Drive Comment
  CAS-BOT-BC382215  Layia platyglossa David D. Keck 1933-5-11 2305 San Mateo Skyline Blvd., east of Salada, northern San Mateo County Comment
  JEPS415  Lemna gibba W. L. Jepson 1923-10-18 10261 San Mateo w of Colma (near ocean) Comment
  CAS-BOT-BC534547  Lemna gibba A. D. E. Elmer 1903-7-1 4765 San Mateo San Pedro Comment
  JROH5594  Lemna minor John Rawlings 2007-7-5 0910 San Mateo Jasper Ridge Biological Preserve, Stanford University. Pool in Bear Creek. 83 Comment
  JROH5675  Lemna minuta John Rawlings 2014-7-29 1277 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Cr. streambed, up-stream from old Boething Nursery crossing. 65 Comment
  CAS-BOT-BC527271  Lemna minuta W. R. Dudley 1909-10-4 s.n. San Mateo W. twin pond near Mussel Rock, Santa Cruz Mountain Peninsula Comment
  CDA987  Leontodon taraxacoides D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .37 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  CAS-BOT-BC221532  Lepechinia calycina Lewis S. Rose 1933-6-9 33225 San Mateo Belmont Comment
  CAS-BOT-BC221540  Lepechinia calycina Fred Hemphill 1973-4-15 717 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH2792  Lepechinia calycina John H. Thomas 1973-5-5 16769 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC191843  Lepechinia calycina Edward Lee Greene 1887-6-12 San Mateo San Mateo Comment
  RSA52666  Lepidium didymum I. L. Wiggins 1949-7-2 12198 San Mateo Pescadero Beach. Comment
  CAS-BOT-BC89706  Lepidium latifolium John Thomas Howell 1978-7-18 53189 San Mateo At Airport Sheraton, Airport Boulevard, Burlingame. Comment
  JROH1552  Lepidium nitidum John Hunter Thomas 1983-2-21 21283 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12596  Lepidium nitidum Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountains. On North Power Line Ridge. Comment
  JROH1563  Lepidium strictum John Hunter Thomas 1988-4-27 24412 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC226602  Leptosiphon ambiguus John H. Thomas 1971-5-2 15866 San Mateo Near intersection of Canada Road and Edgewater [Edgewood] Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC226612  Leptosiphon ambiguus Ned Cahill 1974-4-29 210 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM65146  Leptosiphon androsaceus L. R. Abrams 1901-05 1553 San Mateo Searsville Comment
  JROH5924  Leptosiphon androsaceus Herb Dengler 1970-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  RSA18092  Leptosiphon androsaceus C. B. Wolf 1929-4-24 3656 San Mateo south west end of Jasper Ridge, near Searsville Lake Comment
  JROH3180  Leptosiphon bicolor Carol Zabel 1989-5-8 16 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 just before intersection with Trail 10 Comment
  CAS-BOT-BC226727  Leptosiphon latisectus Alice Eastwood 1901-5-19 s.n. San Mateo Blenheim Comment
  RSA159411  Leptosiphon liniflorus John H. Thomas 1961-5-14 9380 San Mateo Serpentine road bank and outcropping just north of dam on San Mateo Creek. 122 Comment
  JROH3187  Leptosiphon parviflorus Daniel Cohen 1953-4-11 26 San Mateo Jasper Ridge Biological Preserve, Stanford University; near top of Jasper Ridge Comment
  JROH3196  Leptosiphon pygmaeus subsp. continentalis Toni Corelli 2005-6-1 291 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 144 Comment
  UC133649  Leptosiphon rosaceus Dr. E. B. Copeland 1903-5-24 3260 San Mateo Montara Point Comment
  CAS-BOT-BC324069  Lessingia arachnoidea J. H. Thomas 1958-9-15 7473 San Mateo 0.4 miles north of dam on San Mateo Creek along Skyline Blvd. 91 Comment
  CHSC98697  Lessingia arachnoidea Samantha Mackey Hillaire 2007-7-17 1245 San Mateo Pulgas Ridge, near south end of Lower Crystal Springs Reservoir, and north end of Upper Crystal Springs Reservoir. North of intersection of Skyline Blvd and Hwy 35, on sides of a small access road. UTM 10 557433E, 4151982N. 106 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
  POM49389  Lessingia arachnoidea L. R. Abrams 1902-9-2 2996 San Mateo Crystal Lake Comment
  RSA181929  Lessingia arachnoidea Willard Spence 1960-7-2 555 San Mateo Route 5, Crystal Springs Lake Comment
  UC1287457  Lessingia arachnoidea Willard Spence 1960-7-2 555 San Mateo Route 5 Crystal Springs Lake Comment
  UC1287459  Lessingia arachnoidea Willard Spence 1960-10-16 635 San Mateo Ralston Road 0.2 mi off Skyline Blvd. Comment
  CAS-BOT-BC324068  Lessingia arachnoidea L. R. Abrams 1902-9-21 2996 San Mateo Crystal Lake Comment
  RSA0001373  Lessingia bakeri C. F. Baker 1902-10-20 1834 San Mateo Searsville. Comment
  JROH1020  Lessingia glandulifera var. glandulifera John Hunter Thomas 1982-7-3 21062 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1027  Lessingia glandulifera var. glandulifera Carol Zabel 1989-9-4 36 San Mateo Jasper Ridge Biological Preserve, Stanford University; near side of Road E, 100 yards down from intersection of Roads D, E, and F Comment
  CAS-BOT-BC324183  Lessingia hololeuca LeRoy Abrams 1902-9-21 2987 San Mateo Crystal Springs Comment
  SEINET7063127  Lessingia hololeuca A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. UTM Zone 10, 568418mE, 4140415mN. (WGS84/NAD83). 174 Comment
  UCD134052  Lessingia hololeuca Lewis S. Rose 1964-9-5 64072 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  SEINET10617599 Image available Lessingia hololeuca var. arachnoidea Charles F. Baker 1902-9-2 Baker 1548 San Mateo Crystal Springs Lake. Large colonies along roadsides. Comment
  RSA176749  Lessingia tenuis John H. Thomas 1963-5-15 10091 San Mateo Jasper Ridge Biological Experimental Area. 5 miles SW of Palo Alto Comment
  JROH5841  Leucanthemum maximum Ann Lambrecht 2009-7-22 35 San Mateo Jasper Ridge Biological Preserve, Stanford University; in now-dry bed of San Francisquito Creek below Dennis Martin marker Comment
  CAS-BOT-BC342094  Leucanthemum vulgare John Thomas Howell 1949-7-4 25356 San Mateo On Skyline Blvd. north of Millbrae Comment
  CAS-BOT-BC272325  Leymus mollis John H. Thomas 1963-5-20 10148 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC436528  Ligusticum apiifolium A. A. Heller 1907-4-20 8456 San Mateo San Bruno Hills Comment
  CAS-BOT-BC436530  Ligusticum apiifolium Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain, below parking lot Comment
  CAS-BOT-BC436529  Ligusticum apiifolium Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain, above Fern Rock Comment
  CAS-BOT-BC451670  Lilaea scilloides W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. Pond on Jersey Farm Road West of Baden Comment
  CAS-BOT-BC451674  Lilaea scilloides Alice Eastwood 1922-4-24 11196 San Mateo Between Princeton & Morman Comment
  POM193948  Lilaea scilloides W. R. Dudley 1893-05 s.n. San Mateo Santa Cruz Mountain peninsula: Back of Mira Vista, near Stanford University Comment
  CAS-BOT-BC130795  Lilium pardalinum W. S. Atkinson 1901-7-6 s.n. San Mateo Pescadero Creek near Harrison P.O. Comment
  JROH4688  Lilium pardalinum subsp. pardalinum John Hunter Thomas 1985-4-22 23541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC137902  Limnanthes douglasii subsp. douglasii C. F. Baker 1903-4-8 1916 San Mateo San Andreas Lake Comment
  UC2046448  Limonium californicum Michael Perlmutter 2011-10-2 s.n. San Mateo Coyote Point Marina. County of San Mateo Department of Parks. Comment
  CDA36129  Limonium perezii Michael Perlmutter 2011-6-15 San Mateo Burlingame, Sanchez Marsh. 0 Comment
  JEPS58174  Linanthus ambiguus W. L. Jepson 1914-3-22 5731 San Mateo vicinity San Francisco Bay; Redwood City Comment
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Oct 24 2021
  UC306700  Linanthus ambiguus A. D. E. Elmer Apr 1903 4913 San Mateo Crystal Springs Lake Comment
  UC23367  Linanthus androsaceus J. Burtt Davy 1895-4-20 1072 San Mateo Crystal Springs Lake Comment
  UC908670  Linanthus androsaceus Herbert L. Mason 1935-5-21 8314 San Mateo near Moss Beach Comment
  JEPS83043  Linanthus liniflorus Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 431 San Mateo ca 0.5 km ne Pilarcitos Dam (and 7.5 km nw of the intersection of Calif Hwys 35 and 92, near crest of Cahill Ridge, w of gravel rd, overlooking Pilarcitos Lake); San Francisco Watershed Reserve 289 Comment
  SEINET12279094  Linanthus pharnaceoides M. T. Doutt 1931-1 418 San Mateo Skyline Blvd Comment
  CDA6327  Linaria genistifolia subsp. dalmatica A. Roach 1970-12-22 San Mateo Southern Pacific Railroad tracks, 50 yards south of the east end of 14th Avenue, San Mateo. 0 Comment
  CDA6305  Linaria purpurea T. C. Fuller 1968-10-3 17659 San Mateo Christie s Crescent Nursery, Half Moon Bay. 0 Comment
  CDA34068  Lithocarpus densiflorus D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yinli Guo 2011-4-22 11 .157 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  JROH1566  Lobularia maritima John Hunter Thomas 1983-2-21 21284 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC342468  Logfia gallica J. H. Thomas 1961-5-14 9388 San Mateo Southern part of San Francisco Watershed Reserve near Roth Estate 152 Comment
  CAS-BOT-BC342469  Logfia gallica J. H. Thomas 1954-5-28 4234 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  JROH732  Logfia gallica John H. Thomas 1967-5-31 12922 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC342473  Logfia gallica Eric Walther 1920-5-1 s.n. San Mateo Woodside Comment
  CAS-BOT-BC283224  Lolium multiflorum John H. Thomas 1971-5-2 15818 San Mateo Near intersection of Canada Road and Edgewater Road, about 3 miles W from Redwood City 152 Comment
  UCD66070  Lolium multiflorum Lewis S. Rose 1966-5-2 66036 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  UCSC003883  Lolium multiflorum P. Cornelius 1957-6-2 s.n. San Mateo 4 miles south of Half Moon Bay, DM Hwy 1 Hwy 1, Half Moon Bay Comment
  CAS-BOT-BC269176  Lolium temulentum W. R. Dudley 1900-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Summit La Honda stage road Comment
  UC1327235  Lomatium caruifolium var. caruifolium John T. Doyan 1966-3-28 38 San Mateo near Radio Towers on top San Bruno Mountains Comment
  JROH260  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1967-6-1 12969 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA63021  Lomatium dasycarpum subsp. dasycarpum L. S. Rose 1950-5-20 50137 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  UC1368794  Lomatium macrocarpum David H. French 1968-4-19 2857 San Mateo w. Redwood City (s.e. of Upper Crystal Springs Reservoir, s.e. side Edgewood Rd., ca. 100 yds. n.e. of intersection w/ Canada Rd.) Comment
  RSA119854  Lomatium macrocarpum W. R. Dudley 1894-4-21 s.n. San Mateo San Mateo Ravine below dam Comment
  JROH278  Lomatium utriculatum Duncan M. Porter 1960-4-22 657 B San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of NE-facing slope above Webb Ranch. Quadrat H-3 Comment
  SD38866  Lomatium utriculatum McCallum 1933-5-31 3691 San Mateo Spring Valley Lakes, along roadside Comment
  CAS-BOT-BC240429  Lonicera hispidula W. R. Dudley 1895-9-15 s.n. San Mateo El Corte Madera, Canon [Canyon], Sta Cruz Mts Comment
  CAS-BOT-BC240601  Lonicera hispidula Daniel Cohen 1953-6-5 110 San Mateo Los Trancos Woods Comment
  JROH1661  Lonicera hispidula John Hunter Thomas 1981-7-24 20732 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1668  Lonicera hispidula John Rawlings, Ann Lambrecht 2010-6-23 0933 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
  RSA120037  Lonicera hispidula var. vacillans G. H. Mallory 1919-10 s.n. San Mateo Near Searsville Lake; Santa Cruz Mountain Peninsula. Comment
  RSA120039  Lonicera hispidula var. vacillans W. R. Dudley 1896-9-15 s.n. San Mateo El Corte Madera Creek. Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC243963  Lonicera involucrata var. ledebourii D. E. Breedlove 1974-5-13 36219 San Mateo San Pedro Valley Park, Pacific 152 Comment
  CAS-BOT-BC243971  Lonicera involucrata var. ledebourii Carl B. Wolf 1929-5-25 3733 San Mateo 2 mi. from Pescadero on Alpine Creek 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
  UC1536785  Lonicera involucrata var. ledebourii G. H. True 1936-4-5 387 San Mateo canyon between San Gregorio and Pescadero 30 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
  HSC24031  Lotus corniculatus Mary Katherine Wicksten 1971-6-28 131 San Mateo Huddart Park. Near Park Office. Comment
  CAS-BOT-BC157970  Lotus formosissimus Peter Rubtzoff; Roman Gankin 1975-5-21 7972 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon Comment
  SEINET3696856 Image available Lotus formosissimus Ethel Crum 1934-4-29 1701 San Mateo South of Pescadero 30 Comment
  UC15578  Lotus formosissimus J. Burtt Davy 1895-4-20 1030 San Mateo Lake San Andreas Comment
  POM87746  Lotus wrangelianus L. R. Abrams 1902-5-11 2438 San Mateo Crystal Springs Lake. Comment
  RSA159410  Lotus wrangelianus John H. Thomas 1961-5-14 9384 San Mateo Just north of dam on San Mateo Creek. 122 Comment
  JROH3078  Ludwigia peploides subsp. peploides John Hunter Thomas 1981-7-12 20706 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC60244  Lunaria annua Miss H. Thompson 1907-4-6 s.n. San Mateo Roadside near Woodside. Comment
  CAS-BOT-BC60248  Lunaria annua J. H. Thomas 1965-4-29 10632 San Mateo San Bruno Mountain. Comment
  SEINET5766860 Image available Lupinus affinis Dunn, Brown 1946-1 2542 San Mateo 3.7 miles northeast of La Honda on the southeast side of the Hwy; Sann Francisco Peninsula on Hwy from Woodside to la Honda Comment
  UC1481350  Lupinus affinis Dunn and Brown 1946-5-15 2542 San Mateo 3 mi NE of La Honda ( on the SE side of the highway from Woodside to La Honda); San Francisco Peninsula Comment
  CAS-BOT-BC195803  Lupinus albifrons var. albifrons Delzie Demaree 1933-8-13 10508 San Mateo Red-Wood [Redwood] City Comment
  CAS-BOT-BC195813  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-BC196122  Lupinus albifrons var. collinus J. F. Emmel 1969-3-19 146 San Mateo Crest of San Bruno Mts., 2 air miles west of Sierra Point 304 Comment
  RSA134041  Lupinus albifrons var. collinus Roxana S. Ferris 1921-4-7 2131 San Mateo San Bruno mountain near San Francisco 213 Comment
  RSA22000  Lupinus albifrons var. collinus J. T. Howell 1938-5-1 13770 San Mateo Colma Canyon Comment
  CAS-BOT-BC27392  Lupinus apricus C. P. Smith 1908-5-2 1427 San Mateo Stanford University. Stockfarm bridge. Comment
  UC127060  Lupinus arboreus J. Burtt Davy 1895-4-20 1050 San Mateo Lake Pilarcitos; ; Lake Pilarcitos, San Mateo Co. Comment
  SEINET10488467  Lupinus arboreus Elizabeth M. McClintock; Walter Knight; Irja Knight; Baki Kasapligil, Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 McClintock s.n. San Mateo San bruno mountain. Colma canyon near old quarry Comment
  SEINET10488472  Lupinus arboreus Marcus E. Jones 1881-6-24 Jones s.n. San Mateo 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
  JROH5695  Lupinus bicolor John Rawlings 2015-3-31 1415 San Mateo Jasper Ridge Biological Preserve, Stanford University. In old quarry off of Trail 12 77 Comment
  UC725853  Lupinus bicolor A. A. Heller 1907-4-20 8451 San Mateo near Lake Merced; near Lake Merced Comment
  SEINET10484850  Lupinus bicolor Walter Knight, Irja Knight 1965-4-4 Knight 1008 San Mateo Bitter Cherry Ravine. In chaparral. Occasional plant - no colonies. Comment
  CAS-BOT-BC215067  Lupinus chamissonis Walter & Irja Knight 1965-3-21 973 San Mateo Mouth of Colma Canyon Comment
  POM11073  Lupinus densiflorus var. palustris A. D. E. Elmer 1903-05 4847 San Mateo Lake San Andreas. Comment
  POM11076  Lupinus densiflorus var. palustris A. D. E. Elmer 1903-06 4413 San Mateo Lake San Andreas. Comment
  POM10876  Lupinus formosus var. formosus C. F. Baker 1903-4-1 1708 San Mateo Black Mountain. Comment
  SEINET4853650  Lupinus lasiotropis Carl F. Baker Not on sheet 470 San Mateo Crystal Springs Lake. Comment
  RSA51345  Lupinus latifolius Peter H. Raven 1950-4-30 1985 San Mateo Montara Mountains 122 Comment
  UC127015  Lupinus latifolius var. latifolius J. Burtt Davy 1895-4-20 1085 San Mateo San Mateo Creek Comment
  SD27830  Lupinus menziesii Carl B. Wolf 1929-5-17 3712 San Mateo Alpine Road east of Skyline Blvd. 305 Comment
  SBBG39518  Lupinus microcarpus var. densiflorus L. S. Rose 1970-5-9 70038 San Mateo Chateau Drive near Skyline, Hillsborough 91 Comment
  JEPS127786  Lupinus nanus Adam C. Schneider with C. Matt Guilliams 2013-4-7 57 San Mateo At high point of dirt road running parallel to transmission lines. Comment
  JROH2130  Lupinus nanus John H. Thomas 1976-4-2 18073 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2140  Lupinus nanus John Hunter Thomas 1988-4-28 24423 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1303142  Lupinus nanus L. R. Abrams 1926-4-19 San Mateo junction of Los Trancos and San Francisquito Creek; jct of Los Trancos and San Francisquito Creek Comment
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Sep 26 2011
  UC398660  Lupinus nanus L. R. Abrams 1914-4-20 5128 San Mateo junction of Los Trancos and San Francisquito Creeks; jct of Los Trancos and San Francisquito Creeks Comment
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Sep 30 2011
  POM226876  Lupinus polycarpus L. R. Abrams 5094 San Mateo Menlo Heights Comment
  JROH2145  Lupinus succulentus John H. Thomas 1974-4-12 17143 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Escobar gate 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
  POM276255  Lupinus vallicola subsp. apricus Lyman D. Benson 1930-5-1 2049 San Mateo Stanford University. 122 Comment
  SEINET10491013  Lupinus vallicola subsp. vallicola Dengler 1960-4-12 DENGLER 21 San Mateo Corolla deep blue and white; in grassland below chaparral, on dry, rocky, South-facing slope. Jasper ridge, stanford biological reserve. 122 Comment
  UC1285105  Lupinus variicolor R. F. Hoover 1964-4-10 8683 San Mateo hill just S of Pedro Valley Comment
  UC865524  Lupinus variicolor Alice Eastwood and John Thomas Howell 1938-6-26 6052 San Mateo Montara Mt. , Montara Mt. (above Point San Pedro) Comment
  SEINET10489088  Lupinus variicolor Elizabeth M. McClintock 1963-6-9 McClintock 134 San Mateo San bruno mtn. Exposed slopes below top of mtn. Comment
  SEINET10936779  Lupinus variicolor Smith 1948-4-23 Smith 48138 San Mateo Hwy 1, montara, government property. Comment
  SEINET12162894  Lupinus variicolor E. McClintock, Knight, W.; Knight, I. 1982-1 4644 San Mateo Windy Kamchatka Point, San Bruno Mtn 351 Comment
  SJSU10398  Luzula comosa E. C. Garbett 1961-4-8 San Mateo Searsville Lake Park at head of San Francisquito Creek Comment
  CAS-BOT-BC441268  Luzula macrantha Ira L. Wiggins 1925-4-1 1684 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  CAS-BOT-BC441269  Luzula macrantha Elmer I. Applegate 1895-3-9 753 San Mateo Near Woodside Comment
  CAS-BOT-BC441365  Luzula subsessilis Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountain: Bitter Cherry Ravine Comment
  UC311531  Lysichiton americanus A. D. E. Elmer June, 1903 4551 San Mateo Butano Creek Comment
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Sep 6 2011
  JROH3363  Lysimachia arvensis John H. Thomas 1967-5-12 12883 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3366  Lysimachia arvensis John H. Thomas 1975-4-19 17791 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5907  Lysimachia arvensis L. Nordby 1982-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Searsville Lab on the west side of the lake Comment
  JROH3398  Lysimachia latifolia John Hunter Thomas 1991-4-25 24997 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2943  Lythrum hyssopifolia L. R. Abrams 1914-7-1 5113 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH5961  Lythrum hyssopifolia John Rawlings 2017-5-9 2053 San Mateo Jasper Ridge Biological Preserve, Stanford University; drainage ditch along road south of visitor oarking lot near trail up slope to Global Change site. 115 Comment
  UC796711  Lythrum hyssopifolia Ira L. Wiggins 1949-7-2 12195 San Mateo on Pescadero Beach Pescadero Beach Comment
  JEPS79507 Image available Lythrum salicaria Edward Lee 1978-8-24 San Mateo Princeton Marsh Comment
  CAS-BOT-BC342590  Madia Cherie Wetzel 1969-7-8 926 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC343915  Madia elegans J. H. Thomas 1958-9-15 7475 San Mateo 0.4 miles north of dam on San Mateo Creek along Skyline Blvd. 91 Comment
  CAS-BOT-BC343905  Madia elegans Barrett Anderson 1986-8-12 3258 San Mateo Skyline Blvd just N of Crystal Springs Rd. 135 Comment
  JROH1052  Madia exigua John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA124756  Madia exigua John H. Thomas 1958-5-10 7141 San Mateo Jasper Ridge. About 5 miles SW of Palo Alto. 152 Comment
  CAS-BOT-BC344521  Madia exigua R. E. Frenkel 1964-5-26 508 San Mateo On Portola Ridge Road, SFWD, 0.7 mile north of Sawyer Ridge Road 320 Comment
  CAS-BOT-BC343328  Madia gracilis Peter H. Raven 1950-4-30 1990 San Mateo Montara Mts. 121 Comment
  CAS-BOT-BC343329  Madia gracilis Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Lower slope on south side above Olivet Cemetery Comment
  CAS-BOT-BC343330  Madia gracilis Fred Hemphill 1973-5-14 815 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1071  Madia gracilis John H. Thomas 1969-5-28 15093 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1078  Madia gracilis John Hunter Thomas 1981-5-8 20559 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1084  Madia gracilis John Hunter Thomas 1985-5-7 23642 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1091  Madia gracilis John Hunter Thomas 1988-4-28 24417 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33375  Madia gracilis A. D. E. Elmer -Apr-1901 San Mateo Stanford University Comment
  UC913111  Madia gracilis David D. Keck 1932-6-1 1787 San Mateo on La Honda Road above Woodside; east slope of the Santa Cruz Mtns. 305 Comment
  CAS-BOT-BC343334  Madia gracilis David D. Keck 1932-5-6 1485 San Mateo Hills just west of Millbrae Highlands 120 Comment
  CAS-BOT-BC345139  Madia sativa Margaret A. Barry 1937-7-17 211 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC353466  Madia sativa Peter Rubtzoff 1975-9-11 8378 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH1098  Madia sativa John H. Thomas 1963-6-23 10163 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  POM204315  Madia sativa I. L. Wiggins 1929-7-4 3796 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
  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-BC345124  Madia sativa Walter Knight; Irja Knight 1965-5-9 1094 San Mateo San Bruno Mountain. Devil's Arroyo Comment
  CAS-BOT-BC345131  Madia sativa David D. Keck 1941-7-1 1869 San Mateo Base of Montara Mountain, near Montara 91 Comment
  CAS-BOT-BC345138  Madia sativa George Oberlander 1950-6-3 1045 San Mateo San Francisco Watershed Reserve. On Sawyer Ridge Comment
  POM284997  Madia sativa Lyman Benson 1934-7-4 6103 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  RSA184909  Madia sativa L. S. Rose 1966-8-6 66078 San Mateo San Bruno Mountain, head of Colma Canyon 213 Comment
  CAS-BOT-BC511333  Maianthemum dilatatum Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain, exposed slopes below top of mountain Comment
  JROH4694  Maianthemum racemosum James Newman 1952-4-21 15 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4701  Maianthemum racemosum John Hunter Thomas 1987-4-16 24207 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD39133  Maianthemum racemosum subsp. amplexicaule Marie Cummings 1933-4-11 12 San Mateo Pescadero. Comment
  CAS-BOT-BC511479  Maianthemum racemosum subsp. amplexicaule Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road 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-BC512113  Maianthemum racemosum subsp. amplexicaule Ira L. Wiggins 1928-4-14 2916 San Mateo Alpine Creek Road Comment
  SEINET3992115  Maianthemum stellatum Unknown 1941-3-12 41024 San Mateo Skyline Blvd. W. of San Bruno 152 Comment
  CAS-BOT-BC514155  Maianthemum stellatum R. Bacegalupi 1922-3-1 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC206248  Malacothamnus fasciculatus Josephine D. Randall 1907-7-24 249 San Mateo Crystal Springs Lake - Santa Cruz Peninsula Comment
  CAS-BOT-BC204084  Malacothamnus hallii John Thomas Howell 1935-4-11 12579 San Mateo West end of Hayward - San Mateo Bridge Comment
  UCD39014  Malva arborea Beecher Crampton 1962-6-11 6510 San Mateo Pacifica, Sharp Park at Mori's Point. Comment
  SD88536  Malva arborea Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of 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
  RSA176523  Marah fabacea John H. Thomas 1961-4-29 1995 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC67841  Marsilea vestita George Oberlander 1951-1-1 s.n. San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC348193  Matricaria discoidea Philip C. Wheeler 1965-5-8 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  JROH616  Matricaria discoidea John H. Thomas 1967-5-12 12886 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC422674  Meconella californica C. F. Baker 1902-4-6 457 San Mateo Crystal Springs Lake Comment
  POM176886  Meconella californica W. R. Dudley 1894-3-26 s.n. San Mateo San Mateo to Crystal Springs Reservoir, Santa Cruz Mountain Peninsula Comment
  JROH2151  Medicago arabica John H. Thomas 1955-5-6 5010 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  UCR121590  Medicago lupulina George K. Helmkamp, E. A. Helmkamp 1999-6-28 4976 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  JROH2158  Medicago lupulina Ann Lambrecht 2005-8-1 18 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road C just south of low-flow crossing, west side of road Comment
  CAS-BOT-BC269480  Melica californica Walter Knight; Irja Knight 1965-4-25 s.n. San Mateo San Bruno Mountain. Owl's Canyon Comment
  JROH5299  Melica californica W. H. Lennihan 1990-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Right side of trail leading from serpentine hill to oak woodlands. Comment
  CAS-BOT-BC281410  Melica imperfecta K. Wagnon 1939-3-24 137 San Mateo Youngman's Canyon on Trinity Rd 2.5 miles E of Glen Ellen Comment
  JROH5301  Melica imperfecta John H. Thomas 1977-5-14 18609 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5308  Melica imperfecta John Hunter Thomas 1985-4-22 23551 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Rattlesnake Rocks Comment
  CAS-BOT-BC264188  Melica subulata W. R. Dudley 1898-4-24 s.n. San Mateo El Corte Madera, Santa Cruz Mountain Peninsula 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
  CAS-BOT-BC264245  Melica torreyana John H. Thomas 1971-5-2 15850 San Mateo Near intersection of Canada Road and Edgewood Road, about three miles westward from Redwood City 152 Comment
  JROH5315  Melica torreyana John H. Thomas 1975-5-26 17904 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS121449  Melilotus indicus Adam C. Schneider with C. Matt Guilliams 2013-3-9 51 San Mateo Crystal Springs Reservoir Comment
  JROH2189  Melilotus indicus John H. Thomas 1975-5-2 17857 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2192  Melilotus indicus John Hunter Thomas 1982-5-18 20933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2816  Mentha pulegium John Hunter Thomas 1980-11-12 20163 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA131293  Mentha pulegium Josephine Randall 1907-7-23 174 San Mateo Near Woodside on road to Crystal Springs Lake Comment
  JROH2827  Mentha suaveolens Ann Lambrecht 2007-8-15 30 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek Comment
  JEPS22980  Mercurialis annua V. Duran 1933-3-20 San Mateo near Montara Mountain Comment
  RSA190717  Mercurialis annua T. C. Fuller 1967-8-23 16293 San Mateo Coastways Ranch, 0.2 mi. e. of the Coast Hwy (Hwy 1), 0.2 mi. n. of the county line of Santa Cruz Co. in San Mateo Co. Comment
  CAS-BOT-BC438142  Mesembryanthemum nodiflorum Malcom A. Nobs 1948-12-20 721 San Mateo Redwood City yacht harbor Comment
  UC1191376  Mesembryanthemum nodiflorum Malcolm A. Nobs, S. Galen Smith 1949-8-27 1623 San Mateo East of Redwood City. Comment
  CAS-BOT-BC389747  Micranthes californica M. Danielson 1970-3-15 118 San Mateo Above Crystal Springs Road, N.W. slope Comment
  CAS-BOT-BC428903  Micranthes californica Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. 1/4 mi. e. of Brisbane power lines Comment
  JROH3906  Micranthes californica John H. Thomas 1973-3-12 16483 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS40609  Micropus californicus var. californicus R. F. Hoover 1941-4-23 4909 San Mateo Redwood City Hills Comment
  JROH1124  Micropus californicus var. californicus John H. Thomas 1974-4-24 17187 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JEPS36153  Microseris douglasii subsp. douglasii J. Burtt Davy 1893-6-17 797 San Mateo Belmont Comment
  JEPS49070  Microseris douglasii subsp. douglasii Lewis S. Rose 1966-5-2 66037 B San Mateo w Redwood City; Emerald Lake 91 Comment
  JROH1139  Microseris douglasii subsp. douglasii John H. Thomas 1956-4-7 5615 San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent slopes Comment
  JROH1149  Microseris douglasii subsp. douglasii John Hunter Thomas 1988-5-3 24438 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC203060  Microseris douglasii subsp. douglasii A. D. E. Elmer May, 1903 4721 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC349016  Microseris douglasii subsp. douglasii George Oberlander 1950-4-23 880 San Mateo San Francisco Watershed Reserve. Near Lower Crystal Spr. Lake Comment
  CAS-BOT-BC349143  Microseris douglasii subsp. tenella Philip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Buckeye Canyon Comment
  UC50013  Microseris douglasii subsp. tenella E. L. Greene 1886-5-9 San Mateo Belmont Comment
  JROH4070  Mimulus aurantiacus var. aurantiacus W. R. Dudley 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Ridge near Searsville Dam Comment
  JROH4077  Mimulus aurantiacus var. aurantiacus John Hunter Thomas 1980-6-5 19998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5857  Mimulus douglasii Ruth Porter 1989-3-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In Vestal's exclosure Comment
  UCD23299  Mimulus grandis Alan T. Whittemore 1976-5-29 s.n. San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road, between L. San Andreas and Crystal Springs Lake. 100 Comment
  UC306607  Mimulus guttatus A. D. E. Elmer April, 1903 4857 San Mateo Crystal Springs Lake Comment
  RSA60036  Mimulus guttatus G. R. Campbell 1950-6-7 15485 San Mateo 2 miles north of junction of San Mateo road and Hwy 5, hills west of San Jose. 457 Comment
  SEINET5561542  Mimulus guttatus H. S. Gentry 1931-1 93 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH1705  Minuartia douglasii John Hunter Thomas 1982-4-28 20875 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1707  Minuartia douglasii Ruth Porter 1991-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Area C Comment
  SEINET11943608  Minuartia douglasii L. S. Rose 1937-1 37249 San Mateo Burlingame hills 91 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-BC214064  Monardella villosa Lewis S. Rose 1965-6-15 65080 San Mateo South of parking lot near summit, San Bruno Mountain 365 Comment
  HSC24050  Monardella villosa subsp. villosa Mary Katherine Wicksten 1971-6-24 115 San Mateo Huddart Park, by park entrance Comment
  UC50082  Monolopia gracilens J. Burtt Davy Jun 21 1893-Jun 23 1893 1124 San Mateo Pilarcitos Lake and Canyon Comment
  UC1252098  Myosotis latifolia J. H. Thomas 1955-3-18 4687 San Mateo 5 mi. up Tunitas Creek Rd. from coast 304 Comment
  UCR280166  Myosotis latifolia Peter Rubtzoff 1977-4-16 8949 San Mateo San Francisco Bay Region, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  JROH1398  Myosotis latifolia John Hunter Thomas 1983-4-5 21326 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  UC1135945  Myrica californica N. K. Carlson 1935-7-5 29 San Mateo 3 mi. s. Bellvale; Santa Cruz Quad. Comment
  JROH2692  Myriophyllum aquaticum John H. Thomas 1976-5-19 18143 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA5318  Myriophyllum aquaticum G. D. Barbe, Tom Palmer, M. Keffer, J. Reppas 1978-11-8 2467 San Mateo Around the shores of Searsville Lake, Jasper Ridge Biological Preserve, Stanford University. 0 Comment
  JROH2979  Myrtus communis John H. Thomas 1977-1-23 18461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB279  Najas guadalupensis McPherson, D. 1960-08 San Mateo Felt Lake; Stanford University foothills Comment
Read comments
1
  RSA128469  Nassella lepida J. T. Howell 1952-5-28 28316 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC260236  Nassella pulchra John H. Thomas 1971-5-2 15869 F San Mateo Near intersection of Canada Road and Edgewater Road, about 3 miles W from Redwood City 152 Comment
  RSA176741  Nassella pulchra John H. Thomas 1963-3-20 10023 A San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Comment
  RSA187301  Nassella pulchra John H. Thomas 1964-4-12 10311 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  SEINET3696485 Image available Navarretia heterodoxa Lewis S. Rose 1934-5-27 34280 San Mateo Emerald Lake. Comment
  UC306768  Navarretia heterodoxa A. D. E. Elmer Jun 1903 4282 San Mateo Crystal Springs Lake Comment
  RSA95822  Navarretia heterodoxa L. S. Rose 1953-6-29 53044 San Mateo Emerald Lake, hills w. of Redwood City 91 Comment
  JROH3209  Navarretia squarrosa John H. Thomas 1973-6-10 16815 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  UC1537487  Navarretia squarrosa Gordon H. True Jr. 1936-6-14 506 San Mateo s of Salada Beach 365 Comment
  UCD48691  Navarretia squarrosa J. Skoss 1948-7-25 46 San Mateo San Vicente Canyon near Montara, San Mateo County, California. Comment
  JROH2751  Nemophila John Hunter Thomas 1985-4-22 23548 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38536  Nemophila menziesii Janet Turner 1933-4-19 3728 San Mateo Above Emerald Lake Comment
  UC1301146  Nemophila menziesii Helen K. Sharsmith 1963-2-16 5132 a San Mateo above Daly City (lower open slopes of San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  CDA986  Nemophila parviflora D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .368 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  CAS-BOT-BC219483  Nemophila parviflora Ira L. Wiggins 1925-4-1 1670 San Mateo On Kings Mountain Road above Woodside Comment
  JROH2745  Nemophila parviflora var. parviflora John H. Thomas 1972-4-1 16049 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2747  Nemophila parviflora var. parviflora Toni Corelli 2010-4-21 357 San Mateo Jasper Ridge Biological Preserve, Stanford University. Upslope of Trail 1, just east of landslide area 83 Comment
  CAS-BOT-BC140427  Oemleria cerasiformis W. R. Dudley 1900-3-1 s.n. San Mateo By road N. of Summit Springs Comment
  CAS-BOT-BC140441  Oemleria cerasiformis E. G. Dudley 1904-3-3 42 San Mateo Portola Valley, Santa Cruz Mts. Comment
  JEPS108618  Oemleria cerasiformis Roger Raiche 1983-7-18 10167 San Mateo San Bruno Mountain, head of canyon, Crocker Industrial Park Comment
  JROH3705  Oemleria cerasiformis John H. Thomas 1963-4-17 10035 San Mateo Jasper Ridge Biological Preserve, Stanford University. Moist slope along road near Searsville Lake 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
  UC676734  Oemleria cerasiformis Reed C. Rollins 1941-2-22 2938 San Mateo about 10 mi nw Palo Alto 152 Comment
Read comments
Apr 10 2013
  UC860379  Oemleria cerasiformis Lewis S. Rose 1937-3-20 37004 San Mateo w of Tanforan (Skyline Blvd) 182 Comment
  UC1122258  Oenothera elata subsp. hookeri N. K. Carlson 1935-7-1 111 San Mateo Little Butano and Road Santa Cruz Quadrangle Comment
  RSA269270  Oenothera perennis T. C. Fuller 1970-5-12 19529 San Mateo Emily (Mrs. Hillary) Brown Prop., 3045 Ralston Ave., Burlingame Comment
  JROH3084  Orobanche bulbosa John Hunter Thomas 1977-6-16 18748 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS26313  Orobanche californica subsp. californica Wayne Roderick 1961-8-20 San Mateo Bean Hollow State Beach; below south entrance of San Mateo State Park, about 2 miles south of Pescadero turn-off. Comment
  JEPS121488  Orobanche fasciculata Adam C. Schneider with C. Matt Guilliams 2013-5-17 189 San Mateo Crystal Springs Reservoir Comment
  SEINET8466936 Image available Orobanche grayana Tom Hensel 1973-7-10 267 San Mateo Pigeon Point Lighthouse, 8.5 mi N of San Mateo-Santa Cruz Co. line Comment
  CAS-BOT-BC238396  Orthocarpus Charles Piper Smith 1950-5-15 50143 San Mateo Pescadero Creek Bridge - Highway 1; 3.9 miles south Comment
  SEINET12324060  Orthocarpus attenuatus E. McClintock, Knight, W.; Knight, I. 1982-1 4649 San Mateo San Bruno Mountain Comment
  POM319954  Orthocarpus densiflorus Barbara Shervanick 1973-4-1 800 San Mateo San Bruno Mt. first summit on Crocker Road; Mt. Range: San Bruno Mountains; Drainage Area: San Francisco Bay. Comment
  SEINET3819130 Image available Orthocarpus densiflorus Lewis S. Rose 1932-4-10 32141 San Mateo Atherton. Comment
  RSA195661  Orthocarpus erianthus var. erianthus John H. Thomas 1967-5-2 12823 San Mateo Along Canada Road, about 1.6 miles SE of the Edgewood Rd. intersection. Woodside. Comment
  CAS-BOT-BC173631  Orthocarpus pusillus Peter Rubtzoff 1977-4-14 8941 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  SEINET12324059  Orthocarpus pusillus E. McClintock, Knight, W.; Knight, I. 1982-1 4648 San Mateo San Bruno Mountain Comment
  JROH299  Osmorhiza berteroi John Hunter Thomas 1986-5-17 24048 San Mateo Jasper Ridge Biological Preserve, Stanford University; dam to Rattlesnake Rock Comment
  RSA176828  Osmorhiza berteroi John H. Thomas 1961-5-5 9213 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  RSA152259  Osmorhiza berteroi I. L. Wiggins 1925-04 1681 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  JROH3091  Oxalis micrantha John Rawlings 2013-4-3 1161 San Mateo Jasper Ridge Biological Preserve, Stanford University; restricted to a small area on verge of Trail 11 in chaparral 143 Comment
  UCSB24631  Oxalis oregana Masere, Ann 1967-3-21 San Mateo Butano Creek in Butano Canyon, 3.3 miles east of junction of Cloverdale Road and Canyon Road on Canyon Road 106 Comment
  POM177457  Oxalis pes-caprae L. R. Abrams, I. L. Wiggins 1930-11-13 176 San Mateo Along Skyline Blvd. near Colma Comment
  UC175966  Packera breweri A. A. Heller 1907-5-23 8565 San Mateo back of San Mateo (on the Half Moon Bay road) Comment
  CDA12444  Parentucellia viscosa G. F. Hrusa 1987-5-21 5342 San Mateo Ano Nuevo State Beach near visitor center. Comment
Read comments
Mar 2 2010
  CAS-BOT-BC265662  Paspalum distichum Ira L. Wiggins 1980-8-29 22265 San Mateo Bed of San Francisquito Creek, ca 50 m upstream from Pope Street bridge, Menlo Park Comment
  JROH5690  Pectocarya pusilla John Rawlings 2015-4-7 1455 San Mateo Jasper Ridge Biological Preserve, Stanford University; quarry off Trail 12 110 Comment
  JEPS17981  Pedicularis densiflora George B. Rossbach 1955-3-12 488 San Mateo se end of Buriburi Ridge (nw side of San Mateo Creek); , San Mateo Creek 76 Comment
  JROH4101  Pedicularis densiflora John H. Thomas 1957-4-16 6663 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH4110  Pedicularis densiflora John H. Thomas 1967-6-1 12970 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC202754  Pedicularis densiflora A. D. E. Elmer 1903-5-1 4497 San Mateo Woodside Comment
  UCR131712  Pedicularis densiflora C. B. Wolf 1927-2-26 00221 San Mateo La Honda Grade 305 Comment
  JROH4095  Pedicularis densiflora D. D. Davis 1903-2-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH4097  Pedicularis densiflora Daniel Cohen 1953-4-11 18 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 1/3 of the way up Jasper Ridge Road from Searsville Lake Comment
  JROH4108  Pedicularis densiflora John H. Thomas 1961-4-8 9068 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Searsville Lake end of ridge Comment
  SEINET12270441  Pedicularis densiflora Unknown 1930-1 7320 San Mateo Jasper Ridge Comment
  NY90895  Pedicularis dudleyi A. D. E. Elmer 06 1903 4289 San Mateo Pescadero Comment
  RSA130986  Pedicularis dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Bank near fork of road to Old Page Mill Comment
Read comments
Feb 18 2016
  CDA35479  Pennisetum villosum Ed Finley 1992-11-1 PDR# 1013531 San Mateo South San Francisco; north of Oyster Point Blvd., Southern Pacific Railroad right-of-way. 0 Comment
  SJSU12769  Pentachaeta bellidiflora S. C. Sommers 1986-5-2 San Mateo W side Edgewood Park, W of Hwy 280 off Edgewood Rd, Redwood City Comment
  POM88666  Pentachaeta exilis L. R. Abrams 1902-4-13 2326 San Mateo San Andreas Lake. Comment
  JROH113  Pentagramma triangularis subsp. triangularis Lawrence J. Winship 1974-11-16 13 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH313  Perideridia kelloggii John Hunter Thomas 1983-7-20 22905 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3245  Persicaria amphibia John H. Thomas 1964-10-2 10510 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake near bridge. Comment
  JROH3247  Persicaria amphibia John H. Thomas 1974-8-3 17496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3251  Persicaria amphibia John Hunter Thomas 1981-7-12 20705 San Mateo Jasper Ridge Biological Preserve, Stanford University. On old beach in shallow water. Comment
  CDA8457  Petasites frigidus var. palmatus T. C. Fuller 1960-4-2 4084 San Mateo Alpine Road, 0.8 mile east of Pescadero Road, 2.8 miles southeast of La Honda. 0 Comment
  POM289352  Phacelia californica Lyman Benson 1930-4-6 2038 San Mateo Spring Valley, Crystal Springs Lake, San Lorenzo Mt. Range. 183 Comment
  RSA152207  Phacelia californica John H. Thomas 1961-5-7 9313 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC1084386  Phacelia californica G. Thomas Robbins 1937-4-11 92 San Mateo in field along road to Woodside above San Mateo Comment
  UC306571  Phacelia californica A. D. E. Elmer April, 1903 4855 San Mateo Crystal Springs Reservoir Comment
  JROH2758  Phacelia distans John Rawlings 2008-4-23 1031 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just west of Rd C in small, grassy opening on slope uphill from blue metal bridge near beginning of Rd 19 that leaves Rd. C 30 meters south of the main San Francisquito Creek/Rd C bridge. 92 Comment
  JEPS2344  Phacelia divaricata W. L. Jepson 1914-3-22 5733 San Mateo Redwood City Comment
  UC511347  Phacelia divaricata Lyman Benson 1931-3-15 2639 San Mateo Emerald Lake San Francisco Bay Watershed, Santa Cruz Mt. Range, Redwood C 152 Comment
  POM128436  Phacelia divaricata L. R. Abrams 1902-4-13 2324 San Mateo Crystal Spring. Comment
  POM65348  Phacelia malvifolia A. D. E. Elmer 1903-05 4784 San Mateo San Bruno Hills. Comment
  RSA101024  Phacelia malvifolia G. Oberlander 1950-4-2 579 San Mateo Near San Andreas Lake, San Francisco Watershed Reserve Comment
  JROH5360  Phalaris aquatica John Hunter Thomas 1981-9-24 20745 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5367  Phalaris aquatica John Hunter Thomas 1983-4-3 21306 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Main Gate along Sand Hill Rd. Comment
  UCR101609  Phalaris aquatica George K. Helmkamp, E. A. Helmkamp 1998-5-16 3743 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  CAS-BOT-BC259006  Phalaris californica Javier Penalosa 1963-3-30 2737 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 289 Comment
  JROH5381  Phalaris californica H. J. Dengler 1961-4-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In seep about 25' NNE of the serpentine. 171 Comment
  UC820505  Phalaris minor John Thomas Howell 1937-7-5 13099 San Mateo along Bayshore Highway Redwood City Comment
  JROH5855  Phalaris paradoxa Herb Dengler 1980-6-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ca. 100 yards due N. of 2nd enclosure Comment
  JROH4255  Phyla nodiflora Carol Zabel, Ann Lambrecht, Toni Corelli 2001-5-21 42 San Mateo Jasper Ridge Biological Preserve, Stanford University; bank of Searsville Lake, just below Searsville Lab 105 Comment
  CAS-BOT-BC251002  Phyllostachys bambusoides Elizabeth McClintock; Paul Reeberg 1988-4-27 s.n. San Mateo San Bruno Mountains. 40 feet up trail from GCP towards Old Quarry in Colma Canyon, on south side of trail 91 Comment
  JROH4174  Physalis philadelphica Toni Corelli 2011-7-12 370 San Mateo Jasper Ridge Biological Preserve, Stanford University; south of Road B 77 Comment
  CAS-BOT-BC142186  Physocarpus capitatus Walter Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  JROH3724  Physocarpus capitatus John H. Thomas 1975-6-5 17928 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lowflow crossing Comment
  UC69382  Physocarpus capitatus J. Burtt Davy 1893-6-17 799 San Mateo Belmont Comment
  CAS-BOT-BC206942  Pickeringia montana var. montana J. I. McMurphy 1906-5-20 80 San Mateo King's Mt. Road, Santa Cruz Mts. - Santa Cruz Peninsula 457 Comment
  JEPS121041  Pinus radiata Adam C. Schneider with C. Matt Guilliams 2013-3-8 40 San Mateo Crystal Springs Reservoir, Northern part of western margin of San Francisco Public Utilities Commission land. Comment
  UCSB23893  Pinus radiata Haller, John 1967-10-7 San Mateo Coastways Ranch near Ano Nuevo Creek, 0.5 miles inland from Ano Nuevo Bay, about 20 miles by road northwest of Santa Cruz 30 Comment
  CAS-BOT-BC389707  Piperia elegans L. Sigal 1969-8-1 51 San Mateo Field redacted by CAS, contact the data manager for more information 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
  JROH676  Pistacia atlantica Toni Corelli 2002-8-12 247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road H 128 Comment
  JROH2205  Pisum sativum John H. Thomas 1967-4-28 12724 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC228133  Plagiobothrys chorisianus John Thomas Howell 1938-5-1 13784 San Mateo Near South San Francisco Comment
  UC78129  Plagiobothrys chorisianus T. S. Brandegee 1890-5-20 San Mateo Searsville Comment
Read comments
Nov 12 2007
  CAS-BOT-BC228125  Plagiobothrys chorisianus George Oberlander 1950-4-23 804 San Mateo San Francisco Watershed Reserve. Fire trail, to of Sweeney Ridge Comment
  SEINET13365367  Plagiobothrys chorisianus var. chorisianus D. W. Taylor 2008-4-16 20181 San Mateo Half Moon Bay, bluff at the far W end of Redondo Beach Drive. 15 Comment
  CAS-BOT-BC228160  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1900-3-18 s.n. San Mateo The Santa Cruz Mountain Peninsula. Top of first summit E of Salada Valley Comment
  JROH1433  Plagiobothrys nothofulvus John Hunter Thomas 1991-4-11 24979 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH3107  Plantago erecta John H. Thomas 1955-5-6 5006 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH5869  Plantago erecta Ann Lambrecht 2012-3-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine-influenced grassland on ridge top SE of blue oak woodland. Sector 23 D3 105 Comment
  RSA144779  Plantago erecta John H. Thomas 1958-3-19 7049 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  RSA191937  Plantago erecta Robert F. Thorne, Percy C. Everett 1963-6-9 32220 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain. 335 Comment
  RSA283962  Plantago erecta Arthur L. Cohen 1935-4-21 631 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  RSA176597  Plantago hirtella var. galeottiana John H. Thomas 1964-6-19 10433 San Mateo Near Pigeon Pt. Lighthouse. Comment
  SEINET6205137  Plantago hookeriana var. californica L. S. Rose 1965-1 65056 San Mateo San Bruno Mtn, N end Comment
  UC2049867  Plantago lanceolata H. W. Johansen 1955-4-23 81 San Mateo Crystal Springs Road, 2 miles W of San Mateo Comment
  RSA187543  Plantago maritima John H. Thomas 1954-6-11 4281 San Mateo About 0.25 miles north of Pigeon Point Light House along low coastal bluffs. Comment
  SD39917  Plantago maritima Edith A. Purer 1933-7-27 5364 San Mateo Near Pigeon Point. Comment
  CAS-BOT-BC92025  Platystemon californicus W. R. Ernst 1957-4-2 103 San Mateo Near junction to Burlingame on Skyline Boulevard (Highway 5). Roadside near houses. Comment
  JROH3105  Platystemon californicus H. J. Dengler 1972-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; E. of Searsville rocks, and above largest Douglas Fir on Jasper Ridge Comment
  RSA6413  Platystemon californicus var. californicus D. D. Keck 1932-5-6 1473 San Mateo Burlingame. Comment
  JROH4248  Plectritis ciliosa Carol Zabel 2006-4-24 58 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dirt trail up slope towards global change area, across from big parking area. Comment
  JROH4241  Plectritis congesta subsp. brachystemon H. J. Dengler 1972-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By trail N.E.J.R. to S.F. Creek, at point where deer trail joins trail to creek, ca. 20' below junco nesting site. Comment
  UC204163  Pleuricospora fimbriolata A. D. E. Elmer Jun 1903 5075 San Mateo on Big Basin trail, Iverson's Place Comment
  JEPS67916  Pleuropogon californicus L. R. Heckard and J. H. Thomas 1972-4-16 2900 San Mateo 1 1/2 mi s of Pulgas Water Temple (sw of Upper Crystal Springs Reservoir, along Old Canada Road (private)) 121 Comment
  CAS-BOT-BC260960  Pleuropogon californicus var. californicus J. I. McMurphy 1906-5-8 s.n. San Mateo Pond near head of Crystal Sprins Laks on road from Woodside to Byrne's Store, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC260964  Pleuropogon californicus var. californicus A. D. E. Elmer 1903-6-1 4848 San Mateo Milbrae Comment
  JROH5394  Pleuropogon californicus var. californicus Ann Lambrecht 2006-5-1 34 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vernally wet area between Sand Hill Road and main entry road to preserve. 121 Comment
  RSA187164  Poa Le Roy Abrams 1932-5-26 s.n. San Mateo Hillside Drive, Burlingame 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
  SEINET10959346  Poa howellii LeRoy R. Abrams Abrams 1560 San Mateo Santa Cruiz Mts. Comment
  RSA120384  Poa secunda Roxana S. Ferris 1921-5-20 2174 San Mateo Santa Cruz Mountain Peninsula; road over divide from Alpine Creek and Pescadero Creek 305 Comment
  CAS-BOT-BC243115  Poa secunda subsp. secunda Ned Cahill 1974-4-29 186 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  RSA0022156  Pogogyne serpylloides John H. Thomas 1966-4-29 11588 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC232872  Polemonium carneum George Oberlander 1950-5-2 580 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  RSA112464  Polygala californica W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Mountains: Pescadero Creek Comment
  JROH3258  Polygonum aviculare subsp. depressum John H. Thomas 1974-8-3 17498 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176406  Polygonum coccineum John H. Thomas 1964-10-2 10510 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  POM192783  Polygonum lapathifolium W. R. Dudley 1909-10-31 s.n. San Mateo Searsville Lake. The Santa Cruz Mtn Peninsula. Comment
  CAS-BOT-BC109241  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach south of Pescadero. Comment
  POM181651  Polygonum paronychia H. F. Copeland 1928-2-26 987 San Mateo Montara Comment
  UC1187045  Polygonum paronychia V. F. Hesse 1956-11-15 2137 San Mateo coastal bluff between Pigeon Point and Pebble Beach 6 Comment
  UC150374  Polypodium C. F. Baker 1902-1-15 235 San Mateo w side King's Mt. Comment
  CAS-BOT-BC76903  Polypodium californicum C. F. Baker 1902-1-15 235 San Mateo West side 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
  JROH80  Polypodium californicum Lawrence J. Winship 1974-11-16 18 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JEPS79496  Polypodium glycyrrhiza Edward Lee with A. Carter, E. Crum, and C. Belshaw 1936-1-26 1721 San Mateo 2.6 mi out of Woodside (e side Cahill Ridge, Kings Mt. Rd.) Comment
  CAS-BOT-BC76803  Polypodium glycyrrhiza W. R. Dudley 1893-2-19 s.n. San Mateo Santa Cruz Peninsula - near La Honda Comment
  UC440196  Polypodium scouleri R. L. Pendleton 1907-4-20 623 San Mateo Colma 152 Comment
  UC42915  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Comment
  SEINET8044537  Polypodium vulgare var. intermedium Richard A. Dodge 1957-1 74 San Mateo 1 mi down Pig Ranch Road, from Skyline Boulevard, 3/4 mi from ocean. 91 Comment
  CAS-BOT-BC233157  Polypogon interruptus A. D. E. Elmer 1903-7-1 4694 San Mateo Pilarcitos Stone Dam Comment
  JROH5435  Polypogon interruptus John Hunter Thomas 1983-5-23 22247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Roadside drainage near shack side & low-flow crossing. Comment
  JROH5437  Polypogon interruptus John Rawlings 2011-10-7 1087 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed downstream from the bridge across Road C. 85 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
  POM199082  Polypogon interruptus A. D. E. Elmer 1903-07 4694 San Mateo Pilarcitos Stone Dam. Comment
  SJSU15938  Polypogon interruptus John Rawlings, Ken Hickman 2016-5-26 1809 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
  UC203508  Polypogon interruptus A. D. E. Elmer July, 1903 4694 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC237343  Polypogon monspeliensis Ned Cahill 1974-6-21 339 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  CAS-BOT-BC237356  Polypogon monspeliensis 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
  JROH5440  Polypogon monspeliensis John H. Thomas 1962-7-15 9920 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below dam. Comment
  POM313142  Polypogon monspeliensis H. L. Mason, Verne Grant 1946-8-28 13094 San Mateo On highway 5, about 3 miles south of Daly City Road. Comment
  CAS-BOT-BC237586  Polypogon viridis J. H. Thomas 1958-8-1 7369 San Mateo About 0.25 mile W of center of Pescadero Comment
  CAS-BOT-BC72221  Polystichum dudleyi W. R. Dudley 1898-3-5 s.n. San Mateo King's Mountain Comment
  JROH45  Polystichum dudleyi Lawrence J. Winship 1974-11-2 1 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC72220  Polystichum dudleyi W. R. Dudley 1894-3-24 s.n. San Mateo Near bridge below La Honda Comment
  CAS-BOT-BC72224  Polystichum dudleyi Brannan; Kellogg 1870-5-31 s.n. San Mateo San Gregorio Redwoods 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
  CAS-BOT-BC389729  Polystichum munitum J. Lovelle 1973-7-22 24 San Mateo Mt. Ellen Comment
  CAS-BOT-BC76646  Polystichum munitum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain - North Power Line Ridge area. Comment
  POM217107  Polystichum munitum D. D. Keck 1932-2-12 1360 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 305 Comment
  RSA0016813  Polystichum munitum B. J. Hoshizaki 1991-10-4 91 -4 [A] San Mateo Along road between Yerba Buena Nursery and Langly Hill Quarry. Woodside Ranch, 19500 Skyline Blvd., Redwood City. Comment
  RSA189827  Polystichum munitum Delzie Demaree 1932-2-14 8922 San Mateo Kings Mountain. P.O. San Carlos. Comment
  RSA30864  Polystichum munitum Roxana S. Ferris 1921-3-20 2111 San Mateo Pescadero Creek Canyon, 6 mi above Pescadero. 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
  JROH5510  Potamogeton crispus Alan Grundman 1976-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  CAS-BOT-BC453833  Potamogeton nodosus H. L. Mason 1921-5-28 s.n. San Mateo Lagoon back of New Years Pt. Comment
  SEINET10946049  Potamogeton nodosus Herbert L. Mason 1921-5-28 Mason s.n. San Mateo Lagoon back of New Years Pt. Comment
  CAS-BOT-BC454006  Potamogeton pectinatus W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Reservoir above Belmont School Comment
  UC204845  Potamogeton pusillus var. pusillus W. R. Dudley July 1893 San Mateo Searsville Pond Comment
  SD39944  Potentilla anserina Edith A. Purer 1933-7-27 5365 San Mateo High stabilized sand dunes, but damp, Pigeon Point Comment
  SD37699  Potentilla glandulosa Edith A. Purer 1933-5-10 3629 San Mateo Steven's Creek Comment
  UCSB17159  Poterium sanguisorba Schulte, John 1963-4-27 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  JROH3378  Primula clevelandii var. patula John H. Thomas 1977-2-27 18472 San Mateo Jasper Ridge Biological Preserve, Stanford University. Westridge end of Jasper Ridge Comment
  JROH4667  Prosartes hookeri W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4674  Prosartes hookeri John H. Thomas 1979-4-10 19448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC517390  Prosartes smithii W. R. Dudley 1905-6-18 s.n. San Mateo Santa Cruz Mountain Peninsula, Butano, Deer Park Comment
  CAS-BOT-BC517394  Prosartes smithii W. R. Dudley 1904-3-1 s.n. San Mateo Goat Ranch, summit of Santa Cruz Mountains near old La Honda Road crossing Comment
  RSA217975  Prunella vulgaris var. lanceolata Phillip Wheeler 1965-6-20 s.n. San Mateo Adjacent to Radio Road Comment
  CAS-BOT-BC156356  Prunus virginiana var. demissa Walter Knight; Irja Knight 1965-4-11 s.n. San Mateo From mouth of Colma Canyon on south side of Guadalupe parkway Comment
  CAS-BOT-BC356857  Pseudognaphalium californicum Josephine D. Randall 1907-7-23 47 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  JROH768  Pseudognaphalium californicum John Hunter Thomas 1983-6-29 22704 San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Rattlesnake Rock Comment
  UC71894  Pseudognaphalium californicum J. Burtt Davy Jun 21 1893-Jun 23 1893 1123 San Mateo Pilarcitos Lake and Canon Pilarcitos Lake, Pilarcitos Canon Comment
  CAS-BOT-BC357132  Pseudognaphalium luteoalbum E. E. Hill 1934-9-1 s.n. San Mateo E. E. Hills place, Burlingame Comment
  POM358831  Pseudognaphalium luteoalbum L. C. Wheeler 1934-5-29 2600 San Mateo Stanford University, Palo Alto 61 Comment
  JEPS33995  Pseudognaphalium ramosissimum James G. Daly 407 San Mateo Upper Mindego canyon Santa Cruz Mts., San Gregorio watershed, Upper Mindego canyo Comment
  SD28045  Pseudognaphalium stramineum Carl B. Wolf 1927-6-15 San Mateo Skyline Boulevard, south of San Francisco Comment
  HSC24038  Pseudognaphalium thermale Mary Katherine Wicksten 1971-6-17 55 San Mateo Huddart Park on Chickadee Trail Comment
  CAS-BOT-BC85908  Pseudotsuga menziesii W. R. Dudley 1893-12-3 s.n. San Mateo Santa Cruz Mountain Peninsula, Bear Gulch Comment
  CAS-BOT-BC85912  Pseudotsuga menziesii James McMurphy 1906-3-9 s.n. San Mateo King's Mountain Comment
  CDA33968  Pseudotsuga menziesii D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .147 San Mateo Santa Cruz Mountains.; Skyline Blvd, ~ 5 miles W of Los Altos. Comment
  CAS-BOT-BC85904  Pseudotsuga menziesii unspecified 1893-12-3 s.n. San Mateo Fr. Lyon's Gate Comment
  CAS-BOT-BC85909  Pseudotsuga menziesii W. R. Dudley 1899-8-27 s.n. San Mateo Near Sisson Tavern Comment
  JROH128  Pseudotsuga menziesii var. menziesii John Hunter Thomas 1983-4-28 21776 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC007773  Pseudotsuga menziesii var. menziesii Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC362023  Psilocarphus tenellus Peter H. Raven 1950-4-16 1804 San Mateo Summit ridge, San Bruno Mts. 243 Comment
  JROH1180  Psilocarphus tenellus John H. Thomas 1963-5-12 10087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1187  Psilocarphus tenellus John Hunter Thomas 1980-5-8 19948 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1193  Psilocarphus tenellus John Hunter Thomas 1989-5-9 24711 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1196  Psilocarphus tenellus John Hunter Thomas 1992-4-23 25146 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-BC72655  Pteridium aquilinum Phillip Wheeler 1965-6-19 s.n. San Mateo Canyon east of quarry Comment
  CAS-BOT-BC72657  Pteridium aquilinum Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mt., Cable Ravine Comment
  JROH19  Pteridium aquilinum var. pubescens John Hunter Thomas 1985-5-22 23677 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH3289  Pterostegia drymarioides John H. Thomas 1976-4-19 18082 San Mateo Jasper Ridge Biological Preserve, Stanford University. Knoll to west of dam. Comment
  CAS-BOT-BC460836  Pyrola aphylla H. L. Mason 1921-7-3 s.n. San Mateo Butano Ridge Comment
  RSA0082792  Pyrola aphylla A. D. E. Elmer 1903-06 4297 San Mateo Pescadero. Comment
  RSA0082794  Pyrola aphylla H. L. Mason 1921-7-3 s.n. San Mateo Butano Ridge. Comment
  JROH5770  Quercus X chasei Carol Zabel, Ann Lambrecht 2001-10-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; northeast side of Jasper Ridge along lower Trail 5 going down below switchback, first oak past valley oak with exposed roots, creek side of trail Comment
  JROH2534  Quercus X morehus W. K. Fisher 1898-3-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
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Oct 31 2016
  SFV17779  Quercus agrifolia E. W. Holm 1993-11-26 s. n. San Mateo Huddart Park, near Sequoia Picnic Area on east-facing slope. Comment
  UCD22449  Quercus agrifolia Roman Gankin; Ken Himes, Toni Corelli 2003-8-23 1401 San Mateo About 0.4 mi above Pilarcitos Lake Dam on main road to '5 points' crossroads on downside edge of roadway. Comment
  UCD45078  Quercus agrifolia Jonh M. Tucker 1994-9-9 s.n. San Mateo Tree ca. 35 ft. tall and 12' dbh. Huddart Park. San Mateo County Comment
  UCD45091  Quercus agrifolia Roman Gankin; Ken Himes, and Toni Corelli 2003-8-23 1401 San Mateo About 0.4 mi above Pilarcitos Lake Dam on main road to '5 points' crossroads on downside edge of roadway. Comment
  SEINET12034175  Quercus agrifolia Unknown 1929-1 7299 San Mateo Kings Mtn Comment
  SEINET9326838  Quercus agrifolia Unknown 1938-11-6 San Mateo Woodside, hill slopes. 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-BC85954  Quercus douglasii John Thomas Howell 1926-10-23 2230 San Mateo Sand Hill Road W of Stanford University Comment
  JROH2483  Quercus durata var. durata John H. Thomas 1970-4-28 15608 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2486  Quercus durata var. durata John H. Thomas 1974-6-30 17462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2490  Quercus durata var. durata John H. Thomas 1975-5-26 17906 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105392  Quercus kelloggii W. R. Dudley 1901-5-4 s.n. San Mateo Santa Cruz Mountain Peninsula, Coal Mine Canon [canyon] Comment
  JROH2497  Quercus kelloggii E. A. McGregor 1909-3-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA15312  Quercus kelloggii Carl B. Wolf 1927-4-3 282 San Mateo 1 1/2 miles above east base of La Honda grade, Santa Cruz Mountains. Comment
  RSA477344  Quercus kelloggii L. H. Jones 1909-3-5 s.n. San Mateo On the west side of Jasper Ridge, Stanford University. 137 Comment
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Sep 19 2011
  UCD46744  Quercus kelloggii Edmond Holm 1993-10-20 s.n. San Mateo (Q. parvula Greene var. shrevei (Muller) Nixon. California, San Mateo Co.; Huddart Park, near Miwok Picnic Area. Comment
  SEINET3523079 Image available Quercus kelloggii Unknown 1932-10-12 32670 San Mateo Hill slopes, Kings Mountain. Comment
  RSA101043  Quercus lobata G. Oberlander 1949-7-30 346 San Mateo Southern boundary, San Francisco Watershed Reserve. Comment
  UCSB34854  Quercus lobata Gropp, K. 1959-4-8 San Mateo 2 Frederick Court, Menlo Park, front yard Comment
  UCD47214  Quercus parvula John M. Tucker 1994-9-9 s.n. San Mateo (Q. parvula E. Greene var. shrevei (C.H. Muller) Nixon). Huddart Park on NE facing slope nr. Miwok Shelter. 365 Comment
  UCD47146  Quercus parvula var. shrevei J. M. Tucker 1946-3-2 1370 A San Mateo Road to Oakland Y.M.C.A Camp, off La Honda-Pescadero road, 6-7 miles east of Pescadero, San Mateo County, California. Comment
  UCD47154  Quercus parvula var. shrevei John M. Tucker 1994-9-9 s.n. San Mateo Huddart Park on NE facing slope nr. Miwok Shelter. 365 Comment
  UCD14074  Quercus parvula var. shrevei Stephen K. Langer 1988-11-5 s.n. San Mateo California, San Mateo Co.; Jones Gulch Y.M.C.A. Camp. 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
  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
  CAS-BOT-BC362546  Rafinesquia californica Fred Hemphill 1973-5-14 822 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  POM290129  Rafinesquia californica Lyman Benson 1937-6-27 8391 San Mateo Summit west of Belmont; Santa Cruz Mt. Range; S. F. Bay Watershed. 152 Comment
  SEINET209201  Ranunculus bloomeri Inez Smith 1915-3-15 San Mateo Hillsboro Comment
  JEPS54964  Ranunculus californicus W. L. Jepson 1914-3-22 5730 San Mateo Redwood City Comment
  UC1176930  Ranunculus californicus Peter H. Raven 1950-4-30 1955 San Mateo Montara; slopes facing ocean 9 Comment
  SEINET5569721  Ranunculus californicus H. S. Gentry 1931-1 22 San Mateo Collected on slope W of Pacific Bone Coal Fertilizer Co. in South San Francisco. Comment
  CAS-BOT-BC378728  Ranunculus californicus var. cuneatus John H. Thomas 1955-3-5 4679 San Mateo coastal bluffs north of mouth of San Gregorio Creek 0000000000000000000000000 30 Comment
  JROH3482  Ranunculus hebecarpus John H. Thomas 1976-4-19 18083 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail in oakwoodland near dam. Comment
  JEPS85713  Ranunculus lobbii L. R. Heckard and J. H. Thomas 1972-4-16 2889 San Mateo ca 1 1/2 mi s Pulgas Water Temple (along old Canada road (private), sw of Upper Crystal Springs Reservoir) 121 Comment
  JROH3499  Ranunculus muricatus John Hunter Thomas 1985-4-10 23513 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy areas, east of low flow crossing. Comment
  POM269264  Ranunculus muricatus Lyman Benson 1935-5-7 6546 San Mateo Santa Cruz Mt, San Francisco Bay, Stanford University 152 Comment
  JEPS55061  Ranunculus orthorhynchus var. bloomeri Inez Smith Mar. 1915 San Mateo Hillsboro Comment
  CHSC39834  Ranunculus pusillus Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JEPS85565  Rhamnus californica Craig Dremann 1986-8-30 325 San Mateo near San Gregorio (Stage road, 450 ft s of intersection of Seaside School road, on e side of school) Comment
  SEINET12209519  Rhamnus californica Unknown 1933-1 s.n. San Mateo On hillside between Skyline and Half Moon Bay Comment
  JROH3563  Rhamnus crocea John H. Thomas 1973-5-5 16768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3566  Rhamnus crocea John Hunter Thomas 1981-4-27 20503 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5728  Rhamnus crocea John Rawlings 2015-3-3 1306 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 8 twenty-five yards south of Trail 7 intersection. 134 Comment
  CAS-BOT-BC389666  Rhododendron occidentale Wicksten 1975-6-19 233 San Mateo Unspecified Comment
  JROH182  Rhus integrifolia Toni Corelli 2007-3-7 332 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just off Road F where it joins with Trail 17 182 Comment
  CAS-BOT-BC437975  Ribes E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge Comment
  UC311182  Ribes aureum A. D. E. Elmer May, 1903 4514 San Mateo Portola Comment
  CAS-BOT-BC92490  Ribes aureum var. gracillimum A. D. E. Elmer 1903-5-1 4514 San Mateo Portola. Comment
  CAS-BOT-BC92491  Ribes aureum var. gracillimum A. D. E. Elmer 1903-5-1 4514 San Mateo Portola. Comment
  SEINET12215220  Ribes aureum var. gracillimum Cummings, McCallum, G. A. 1933-1 s.n. San Mateo Stevens Creek Comment
  UC11498  Ribes californicum J. Burtt Davy 1895-4-21 1058 San Mateo Pilarcitos Creek Comment
  JROH2635  Ribes californicum var. californicum John H. Thomas 1958-2-15 6989 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2637  Ribes californicum var. californicum John H. Thomas 1959-2-23 7518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2640  Ribes californicum var. californicum John H. Thomas 1967-3-26 12418 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33963  Ribes divaricatum var. pubiflorum L. S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  UC1736497  Ribes divaricatum var. pubiflorum Dean W. Taylor 1989-4-18 10219 San Mateo Montara Mountain; ridgetop between Ox Hill and Scarper Peak 472 Comment
  CAS-BOT-BC173480  Ribes malvaceum G. Edelbrock 1975-2-8 002 San Mateo Eastern exposure overlooking Crystal Springs Reservoir along fire road; S.F. Watershed 152 Comment
  LA205482  Ribes malvaceum Lillian Lockwood; 1908-3-9 sn San Mateo Coal Mine Ridge Comment
  UC311538  Ribes malvaceum A. D. E. Elmer March 1903 4535 San Mateo Portola Comment
  RSA0021750  Ribes menziesii var. leptosmum John H. Thomas 1960-3-1 8538 San Mateo Near San Francisquito Creek. Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  RSA0021751  Ribes menziesii var. leptosmum D. D. Keck 1933-2-22 1986 San Mateo Sand Hill Road, near Stanford University. 61 Comment
  JROH2672  Ribes menziesii var. menziesii Toni Corelli 2002-8-19 248 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 1. 82 Comment
  SEINET13942784 Image available Ribes sanguineum Lewis S. Rose 1955-1 55041 San Mateo Kings Mountain, alt 2000 ft 610 Comment
  CAS-BOT-BC144602  Ribes sanguineum var. glutinosum James McMurphy 1902-4-6 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC144607  Ribes sanguineum var. glutinosum David D. Keck 1932-6-1 1786 San Mateo Three miles north of La Honda, Santa Cruz Mtns. 365 Comment
  CAS-BOT-BC144630  Ribes sanguineum var. glutinosum Ira L. Wiggins 1929-3-23 3371 San Mateo Road to Mud Lake, near Stanford University Comment
  CAS-BOT-BC144634  Ribes sanguineum var. glutinosum Le Roy Abrams 1901-2-1 1113 San Mateo Portola - Redwood Canyon [Canon] Comment
  CAS-BOT-BC144642  Ribes sanguineum var. glutinosum John Thomas Howell 1924-2-23 268 San Mateo King Mountain Comment
  UC921843  Ribes sanguineum var. glutinosum Lillian Lockwood 1908-3-9 San Mateo Coal Mine Ridge Comment
  RSA0019110  Ribes sanguineum var. glutinosum Lyman Benson 1929-3-5 976 San Mateo King s Mountain. Comment
  RSA0019111  Ribes sanguineum var. glutinosum Lyman Benson 1930-6-14 2159 San Mateo La Honda. Santa Cruz Mountains. 244 Comment
  JEPS15050  Rigiopappus leptocladus LeRoy Abrams 1902-5-4 2401 San Mateo Woodside Comment
  POM87702  Rigiopappus leptocladus L. R. Abrams 1902-5-4 2401 San Mateo Woodside. 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-BC6011  Romanzoffia californica Charles Fuller Baker 1902-4-6 463 San Mateo Crystal Springs Lake Comment
  UC24535  Romanzoffia californica J. Burtt Davy 1895-4-20 1065 San Mateo Pilarcitos Creek; ; Pilarcitos Creek, San Mateo Co. Comment
  CDA9435  Romanzoffia californica D. G. Kelch 2002-5-13 s.n. San Mateo Pilarcitos Canyon, SF watershed. 0 Comment
  CAS-BOT-BC6127  Romanzoffia suksdorfii Charles Fuller Baker 1902-4-6 463 San Mateo Crystal Springs Lake Comment
  JROH1584  Rorippa palustris subsp. palustris John Hunter Thomas 1979-9-9 19722 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  CAS-BOT-BC389728  Rosa J. Lovelle 1973-8-19 127 San Mateo Pomponio Canyon Comment
  CAS-BOT-BC147626  Rosa californica George Oberlander 1949-8-20 370 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC146693  Rosa gymnocarpa James B. Roof 1965-4-25 s.n. San Mateo Head of Owl's Canyon on ridge Comment
  CAS-BOT-BC148213  Rosa spithamea V. F. Hesse 1953-8-22 1189 San Mateo Near China Grade 762 Comment
  CAS-BOT-BC152827  Rubus parviflorus Ira L. Wiggins 1925-4-1 1658 San Mateo On Kings Mountain Road three fourths of a mile above Woodside in the old cut over redwood. Comment
  CAS-BOT-BC152872  Rubus parviflorus W. S. Atkinson 1901-7-1 s.n. San Mateo Pescadero Cr., Santa Cruz Peninsula Comment
  JROH3773  Rubus parviflorus John H. Thomas 1974-5-3 17247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area below dam Comment
  JROH3776  Rubus parviflorus John Hunter Thomas 1985-5-22 23683 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC152866  Rubus parviflorus Elizabeth McClintock 1965-3-28 s.n. San Mateo Columbine Gulch - San Bruno Mountain Comment
  POM139641  Rubus parviflorus var. velutinus A. D. E. Elmer 1903-06 4294 San Mateo Alpine School House. Comment
  RSA112364  Rubus spectabilis var. franciscanus W. R. Dudley 1900-3-16 s.n. San Mateo By bridge over Pilarcitos Rd. (Spanishtown and San Mateo). Comment
  CAS-BOT-BC157068  Rubus ursinus J. H. Thomas 1949-4-17 296 San Mateo Along bank of San Francisquito Creek near University Ave. and Newell Rd., Palo Alto Comment
  CAS-BOT-BC157069  Rubus ursinus Margaret A. Barry 1938-4-21 243 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC157073  Rubus ursinus John H. Thomas 1963-5-20 10129 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC157103  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6050 San Mateo Montara Mt. above Pt. San Pedro Comment
  JROH3292  Rumex acetosella John H. Thomas 1975-4-19 17799 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3304  Rumex conglomeratus John Hunter Thomas 1989-6-13 24768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3325  Rumex conglomeratus John Hunter Thomas 1977-6-16 18800 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC421823  Rumex conglomeratus Carl B. Wolf 1929-4-26 3658 San Mateo Woodside Comment
  UCSC007778  Rumex crassus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC433356  Rumex crispus A. D. E. Elmer 1903-6-1 4266 San Mateo San Mateo Comment
  CAS-BOT-BC433362  Rumex crispus George Oberlander 1949-7-30 328 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  CAS-BOT-BC433367  Rumex crispus A. D. E. Elmer 1903-6-1 4276 San Mateo San Mateo Comment
  UC1101213  Rumex maritimus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1590 San Mateo mouth of Pescadero Creek Pescadero Creek Comment
  UC1191273  Rumex maritimus Herbert L. Mason and Verne Grant 1946-8-28 13090 San Mateo pond between Santa Cruz and Daly City (on Highway 5) Comment
  UC127315  Rumex maritimus Miss Harriet A. Walker 1908-8-22 1539 San Mateo Granada Comment
  JROH3313  Rumex salicifolius John Hunter Thomas 1977-6-16 18787 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD23435  Rupertia physodes Alan T. Whittemore 1976-5-31 135 San Mateo Alpine Road, near east end of Corte Madera Creek Trail. Mixed evergreen forest. Sequoia in sheltered spots. Acer, Quercus and Alnus in open areas and by stream. Flowers past, originally purple. Trailing on forest floor. Foliage with somewhat unpleasant odor. Comment
  CAS-BOT-BC454176  Ruppia maritima H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach near Pescadero Comment
  SD146161  Ruta chalepensis G. K. Helmkamp, E. A. Helmkamp 1999-6-28 5003 San Mateo Pescadero Crk Watershed: Bean Hollow Rd 0.3 mi S of Pescadero Rd (SW of Pescadero). Slopes above Butano Crk. 60 Comment
  CAS-BOT-BC539284  Rytidosperma caespitosum John Rawlings; Ken Hickman 2015-6-8 1576 San Mateo Caltrans right-of-way above Hwy 92 E of Hwy 280, downslope from San Francisco Watershed fenceline 118 Comment
  UC1738942  Rytidosperma caespitosum Glenn Clifton 1992-8-4 San Mateo between Whitehorse Creek and Cascade Creek Santa Cruz Mountains, Cascade Ranch State Park 15 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
  RSA312360  Salicornia maritima H. L. Mason, Malcolm Nobs 1948-12-11 713 San Mateo Hwy 101 near shore of bay, at Whipple Avenue intersection, Redwood City. Comment
  JROH3853  Salix exigua var. hindsiana Toni Corelli 2003-2-6 254 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area below Searsville Lab 103 Comment
  CAS-BOT-BC104050  Salix hindsiana Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 121 Comment
  JROH3856  Salix laevigata W. R. Dudley 1894-7-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge at Ramsay's above Searsville Comment
  POM222896  Salix laevigata S. S. Berry 1909-2-27 s.n. San Mateo Near Adalanto Villa. 46 Comment
  UC492372  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1932-7-4 640 San Mateo 4/10 mi e. Pescadero (Butano Creek Rd.) Comment
  CAS-BOT-BC125378  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC125379  Salix lasiandra var. lasiandra A. D. E. Elmer 1900-4-1 2166 San Mateo Spanishtown Comment
  UCD111568  Salix lasiandra var. lasiandra J. Ed McClellan; Bonnie McClellan 1976-4-1 s.n. San Mateo Princeton. Comment
  CAS-BOT-BC125371  Salix lasiandra var. lasiandra W. R. Dudley 1900-3-17 s.n. San Mateo South side of Montara Mts. along road Comment
  CAS-BOT-BC107133  Salix lasiolepis Peter H. Raven 1964-2-16 18742 San Mateo Just south of Lake San Andreas Comment
  CAS-BOT-BC166954  Salix lasiolepis Peter Rubtzoff 1976-3-14 8445 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  SD60177  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo Near junction of San Francisquito and Los Trancos creeks, about 2 miles from Stanford University Comment
  UC481898  Salix lasiolepis C. R. Ball and G. W. Hendry 1931-2-22 15 San Mateo in arroyo near San Gregorio Creek (100 m from ocean); San Gregorio Comment
  CAS-BOT-BC108252  Salix lasiolepis var. bigelovii Alice Eastwood 1920-3-15 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC124483  Salix lasiolepis var. lasiolepis Javier Penalosa 1963-3-30 2762 San Mateo Guadalupe Valley Comment
  CAS-BOT-BC124493  Salix lasiolepis var. lasiolepis W. R. Dudley 1894-3-23 s.n. San Mateo Corte de Madera Creek, Portola Valley Comment
  CAS-BOT-BC128208  Salix lucida W. R. Dudley 1894-3-26 s.n. San Mateo Near San Gregorio - Santa Cruz Peninsula Comment
  RSA184900  Salix lucida subsp. lasiandra L. S. Rose 1965-3-16 65007 San Mateo Searsville Lake. 122 Comment
  RSA184901  Salix lucida subsp. lasiandra L. S. Rose 1965-3-8 65002 San Mateo Searsville Lake. 122 Comment
  UC5090  Salix scouleriana Harry A. Dutton 1899-12-10 San Mateo above Searsville (on rd. below Buck Horn Ranch) Comment
  CAS-BOT-BC126482  Salix sitchensis W. R. Dudley 1899-5-14 s.n. San Mateo So.W. of Baden Station Comment
  CAS-BOT-BC126492  Salix sitchensis Lewis S. Rose 1958-3-19 58010 male, 58011 female San Mateo Princeton 6 Comment
  CAS-BOT-BC126497  Salix sitchensis W. R. Dudley 1899-5-14 s.n. San Mateo Near road from San Andreas Lake to Pilarcitos Lake Comment
  CAS-BOT-BC126505  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo From Peters Creek above Iverson's to old mill Comment
  CAS-BOT-BC126515  Salix sitchensis L. R. A. 1902-3-1 2272 San Mateo Kings Mountain Comment
  RSA3918  Salix sitchensis W. R. Dudley 1904-3-7 69 San Mateo Bear Gulch. Santa Cruz Mtns. Santa Cruz Peninsula. 213 Comment
  UC75017  Salvia columbariae C. F. Baker 1902-4-6 546 San Mateo Crystal Springs Lake Comment
  UC306578  Salvia spathacea A. D. E. Elmer May 1903 4440 San Mateo Colma Comment
  UC416705  Salvia spathacea Franklin P. Nutting 1892-1 San Mateo 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
  RSA120031  Sambucus mexicana Paul R. Hichborn 1920-4-22 s.n. San Mateo Tasper Ridge Comment
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Oct 12 2021
  RSA210942  Sambucus mexicana E. K. Balls 1969-9-18 12171 San Mateo 1 mile north of Skywood along Highway 84 from Woodside to junction with Highway 35 Comment
  CAS-BOT-BC246020  Sambucus nigra subsp. caerulea Walter Knight; Irja Knight 1965-4-24 1029 San Mateo Point San Bruno at the bay shore on bluff, San Bruno Mountain Comment
  CAS-BOT-BC246024  Sambucus nigra subsp. caerulea Daniel Cohen 1953-6-3 107 San Mateo Los Trancos Woods Comment
  HSC23950  Sambucus nigra subsp. caerulea Mary Katherine Wicksten 1971-6-17 23 San Mateo Huddart Park, along Rd. near Redwood Shelter. Comment
  JROH1673  Sambucus nigra subsp. caerulea John Hunter Thomas 1981-5-5 20544 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1676  Sambucus nigra subsp. caerulea John Hunter Thomas 1989-5-9 24724 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CHSC9110  Sambucus racemosa var. racemosa M. Banning 1970-3-22 371 San Mateo 1/2 mi S of junction of Hwy 35 and 92, on the former. 76 Comment
  JEPS13391  Sambucus racemosa var. racemosa W. L. Jepson 1910-8-17 4157 San Mateo Tunitas Creek; near the sea Comment
  SBBG43415  Sambucus racemosa var. racemosa C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 1.4 mi E of Hwy 1 30 Comment
  RSA470980  Sanicula arctopoides Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  UC1123153  Sanicula arctopoides H. S. Yates 1935-2-3 5012 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  SEINET9699624 Image available Sanicula bipinnatifida Genevieve J. Kline 1996-1 332 San Mateo Stanford, Stanford University, foothills above Junipero Serra Blvd. Comment
  JROH328  Sanicula crassicaulis Ynez Henderson 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  RSA667078  Sanicula crassicaulis George K. Helmkamp, E. Helmkamp 2001-6-2 6784 San Mateo Central CA coast: Purissima Crk Rd, E of Half Moon Bay at Purissima Crk, 3.2 mi E of CA-1 244 Comment
  RSA128598  Satureja douglasii Peter H. Raven 1950-4-30 1988 San Mateo Montara Mountains 122 Comment
  UCD137506  Scabiosa atropurpurea Collector Unknown 1925-6-15 s.n. San Mateo Pescadero, Santa Cruz Road. Comment
  RSA134131  Scandix pecten-veneris John H. Thomas 1955-4-6 4830 San Mateo Disturbed ground along San Francisco Bay, about 1 mi. SE of Broadway, Burlingame. 5 Comment
  JROH349  Scandix pecten-veneris John H. Thomas 1964-4-19 10314 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  JROH363  Scandix pecten-veneris John Hunter Thomas 1987-4-30 24217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA320754  Schedonorus arundinaceus Robert A. Norris 1984-5-9 4729 San Mateo By Olivet Memorial Park Throughway, Colma. Comment
  RSA790262  Schedonorus arundinaceus Peter Rubtzoff 1976-6-13 8633 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and NW of Fog Forest. Comment
  CAS-BOT-BC218935  Schinus molle Ira L. Wiggins 1980-8-29 22253 San Mateo North bank of San Francisquito Creek, ca 125 M upstream from Pope Street bridge, Menlo Park Comment
  JROH4412  Schoenoplectus acutus var. occidentalis W. R. Dudley 1909-10-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  CAS-BOT-BC111782  Schoenoplectus pungens var. badius Ira L. Wiggins 1920-4-27 1982 San Mateo Sand dunes, Ano Nuevo Pt. 7 Comment
  UC1100787  Scirpus cernuus Herbert L. Mason 1949-7-7 14027 San Mateo mouth of Gazos Creek near ocean (southern San Mateo County); mouth of Gazos Creek Comment
  UCD141269  Scirpus microcarpus Herbert L. Mason; Verne Grant 1946-8-28 13093 San Mateo one mile west of San Bruno between Santa Cruz and Daly City on Highway 5. Comment
  JEPS73772  Scirpus pungens William S. Cooper 1925-5-28 4 San Mateo Salada; dunes Comment
  UC494236  Scoliopus bigelovii Anna E. Ehlers 278 San Mateo San Andreas Comment
  CAS-BOT-BC519000  Scoliopus bigelovii J. H. Thomas 1949-3-29 194 San Mateo Kings Mountain Comment
  CAS-BOT-BC519004  Scoliopus bigelovii George Oberlander 1949-4-17 87 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC519010  Scoliopus bigelovii L. R. Abrams 1904-3-7 s. n. San Mateo Bear Gulch, Santa Cruz Mtn. Penn. Comment
  CAS-BOT-BC519014  Scoliopus bigelovii James McMurphy 1906-3-9 s. n. San Mateo Below Kings Mountain Comment
  SEINET12050524  Scoliopus bigelovii F. H. Utech 1988-1 88 -041 San Mateo 3.3 mi from junction of Kings Mt Rd & CA 35 on former enroute to Woodside 260 Comment
  SEINET12051466  Scoliopus bigelovii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -223 San Mateo 0.5 mi from junction of Kings Mt Rd & CA 35, on former enroute to Woodside, 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
  CDA7624  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  CHSC1898  Scrophularia californica H. Summers 1929-5-10 San Mateo Moss Beach. Comment
  RSA187282  Scrophularia californica John H. Thomas 1965-4-29 10603 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UCSC007779  Scrophularia californica Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC376418  Scrophulariaceae Greg de Nevers 2001-9-26 12630 San Mateo Palo Alto. Comment
  JROH2884  Scutellaria tuberosa John H. Thomas 1961-4-28 9175 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  UC884214  Scutellaria tuberosa Lewis S. Rose 1933-5-21 33179 San Mateo Belmont Comment
  CAS-BOT-BC64100  Sedum radiatum subsp. radiatum W. R. Dudley 1894-3-26 s.n. San Mateo San mateo trap. hills. Comment
  SBBG33418  Sedum spathulifolium A. D. E. Elmer -Jun-1903 4550 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC59273  Sedum spathulifolium George Oberlander 1951-3-16 1156 San Mateo On Fiefield Ridge Comment
  CAS-BOT-BC363401  Senecio aronicoides Margaret Barry 1937-5-23 149 San Mateo Coal Mine Ridge 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
  CAS-BOT-BC363395  Senecio aronicoides Le Roy Abrams 1902-5-4 2398 San Mateo Hills back of Redwood Comment
  RSA0012700  Senecio aronicoides C. F. Baker 1903-4-6 1900 San Mateo San Bruno Hills, San Francisco. [San Mateo] Comment
  RSA0013329  Senecio aronicoides P. H. Raven 1950-4-6 s.n. San Mateo Colma Canyon, San Bruno Mts. Comment
  SEINET5571345  Senecio aronicoides H. S. Gentry 1931-1 103 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH1230  Senecio vulgaris John Hunter Thomas 1991-4-11 24981 San Mateo Jasper Ridge Biological Preserve, Stanford University; grassy area below dam Comment
  CAS-BOT-BC364641  Senecio vulgaris Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Slope above Hillside Blvd., South San Francisco Comment
  NY804119  Sequoia sempervirens C. R. Broome 1978-7-2 2224 San Mateo Kings Mountain Road, 1.5 miles West of its junction with California Highway 84. Comment
  UC405205  Sequoia sempervirens unknown 1874-1-1 San Mateo 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
  UCD92597  Setaria parviflora John Thomas Howell 1957-7-8 32805 San Mateo Holy Cross Cemetary. Comment
  CDA6645  Sherardia arvensis D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JROH3829  Sherardia arvensis John H. Thomas 1957-4-16 6661 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  JROH3834  Sherardia arvensis John Hunter Thomas 1984-5-3 23341 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland below Rattlesnake Rock Comment
  RSA8253  Sidalcea diploscypha Elmer I. Applegate 1895-5-11 56 San Mateo Hills above Stanford University. [county not specified] Comment
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Dec 13 2015
  SD39303  Sidalcea malviflora Marie Cummings 1933-5-8 3733 San Mateo Woodside Road Comment
  SJSU8493  Sidalcea malviflora R. L. Herb 1959-4-19 San Mateo 2.5 mi S of Pescadero Comment
  UCSB18185  Sidalcea malviflora Muirhead, M. 1964-4-17 San Mateo On Crocker Estate, Hillsborough 91 Comment
  UC108870  Sidalcea malviflora subsp. laciniata T. S. Brandegee June 1893 San Mateo Colma Comment
  UC871437  Sidalcea malviflora subsp. laciniata Alice Eastwood 1912-6-10 329 San Mateo Crystal Springs Comment
  POM282902  Sidalcea malviflora subsp. malviflora Lyman Benson 1930-4-6 2044 San Mateo Moss Beach. West slope. 15 Comment
  CAS-BOT-BC175277  Silene W. R. Dudley 1900-3-17 s.n. San Mateo By grade, south slope, near top Montara Mts. Comment
  SD38220  Silene gallica Edith A. Purer 1933-7-27 5343 San Mateo Pigeon Point. Comment
  CAS-BOT-BC386856  Silene gallica Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  JROH1739  Silene gallica John Hunter Thomas 1983-4-28 21775 San Mateo Jasper Ridge Biological Preserve, Stanford University; at low-flow crossing Comment
  CAS-BOT-BC384626  Silene laciniata subsp. californica L. Sigal 1969-7-1 s.n. San Mateo Belmont Comment
  RSA477822  Silene scouleri Glenn A. Gorelick 1967-5-12 s.d. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  RSA191939  Silene scouleri R. F. Thorne, Percy C. Everett 1963-6-9 32235 San Mateo On top of San Bruno Mountain. 335 Comment
  JEPS29396  Silene scouleri subsp. grandis L. R. Heckard 1961-7-16 1265 San Mateo ne transmitting station KQED (summit of San Bruno Mt.); summit San Bruno Mt., ne of transmitting station KQED 335 Comment
  CAS-BOT-BC389901  Silene scouleri subsp. scouleri Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Above the quarry 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
  CAS-BOT-BC364853  Silybum marianum W. R. Dudley 1893-6-8 s.n. San Mateo Santa Cruz Peninsula. Cedro Cottage, Stanford University Comment
  JROH4444  Sisyrinchium bellum John Hunter Thomas 1981-4-23 20488 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1206464  Sisyrinchium bellum LeRoy Abrams 1902-4-13 2327 San Mateo Lake San Andreas Comment
  RSA647584  Sisyrinchium bellum J. Doty 1969-3-26 607 San Mateo San Gregorio Beach State Park. 15 Comment
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Jan 26 2017
  UCD138874  Sisyrinchium bellum R. E. Dengler 1960-4-12 24 San Mateo on northeast side of ravine, Jasper Ridge, Stanford Biological Reserve. 129 Comment
  UC13692  Sisyrinchium californicum Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  JROH4181  Solanum americanum Carol Zabel 1989-8-11 29 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bank about 100 feet upstream from low-flow crossing on Road C. Comment
  RSA202897  Solanum americanum G. Ledyard Stebbins, E. L. Paddock 1939-8-17 61 San Mateo San Gregornio. Comment
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Oct 11 2021
  RSA22959  Solanum douglasii L. R. Abrams, I. L. Wiggins 1939-6-3 425 San Mateo Ano Nuevo Point. Comment
  UCR122985  Solanum douglasii George K. Helmkamp, E. A. Helmkamp 2001-6-2 6782 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
  UCR51662  Solanum douglasii R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  RSA784604  Solanum nodiflorum Peter Rubtzoff 1974-12-17 7942 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  SJSU15426  Solanum physalifolium var. nitidibaccatum Toni Corelli 2011-8-25 707 San Mateo Ano Nuevo State Park, along Hwy. 1 south of main entrance 30 Comment
  CAS-BOT-BC154182  Solanum umbelliferum J. H. Thomas 1949-10-16 1154 San Mateo Just north of outlet of San Gregorio Creek Comment
  CAS-BOT-BC157631  Solanum umbelliferum B. 1902-1-15 234 San Mateo West side King's Mt. Comment
  JROH4188  Solanum umbelliferum John H. Thomas 1968-3-17 14192 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM62325  Solanum umbelliferum C. F. Baker 1902-1-15 234 San Mateo Kings Mountain. West side of King's Mountain. Comment
  UC884945  Solanum umbelliferum Lewis S. Rose 1939-2-26 39016 San Mateo Emerald Lake 182 Comment
  CAS-BOT-BC157432  Solanum umbelliferum J. Penalosa 1963-3-9 2678 San Mateo Slopes southeast of 1314ft. summit 381 Comment
  RSA3092  Solanum umbelliferum Carl B. Wolf 1931-8-21 2334 San Mateo 0.5 mi above east base of La Honda Grade; Santa Cruz Mts. 244 Comment
  SEINET7262176 Image available Solanum umbelliferum L. R. Abrams 1914-4-2 5073 San Mateo San Mateo County Comment
  RSA34004  Solidago canadensis subsp. elongata J. Wendell Howe 1930-5-27 s.n. San Mateo Pigeon Point Road. Comment
  RSA97497  Solidago canadensis subsp. elongata L. S. Rose 1954-8-29 54113 San Mateo Trinitas. 30 Comment
  CAS-BOT-BC365535  Solidago elongata Walter Knight 1964-9-14 s.n. San Mateo Peak Mountain - Montara Range Comment
  CAS-BOT-BC365193  Solidago velutina subsp. californica Josephine D. Randall 1907-7-4 96 San Mateo Santa Cruz Peninsula. Mill's Lake Comment
  SD30800  Solidago velutina subsp. californica Edith A. Purer 1933-8-25 San Mateo Spring Valley, along roadside. Comment
  CAS-BOT-BC365924  Soliva sessilis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Peninsula. Near Pescadero Creek Comment
  JROH1245  Soliva sessilis John Hunter Thomas 1980-5-8 19960 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1251  Soliva sessilis John Hunter Thomas 1987-5-5 24250 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Road Comment
  CAS-BOT-BC365931  Soliva sessilis Walter Knight; Irja Knight 1964-5-19 626 San Mateo San Bruno Mountain. On N. Power Line Ridge Comment
  CAS-BOT-BC365938  Soliva sessilis R. S. Ferris 1925-5-1 4157 San Mateo Selah Chamberlain Residence, Woodside Comment
  JROH1240  Soliva sessilis John H. Thomas 1965-4-28 10598 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1247  Soliva sessilis John Hunter Thomas 1983-5-23 22249 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  UCD23458  Soliva sessilis E. A. Parzail 1949-8-1 s.n. San Mateo 1144 Cortez Avenue, Burlingame. Comment
  CAS-BOT-BC374496  Sonchus asper Le Roy Abrams 1901-3-16 1144 San Mateo Woodside - Menlo Park Comment
  JROH1258  Sonchus asper subsp. asper John Hunter Thomas 1981-5-8 20555 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  UC441312  Sparganium erectum subsp. stoloniferum Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  CAS-BOT-BC236624  Spartina foliosa Le Roy Abrams 1900-10-1 1015 San Mateo Cooley Landing Comment
  CHSC19915  Spartina foliosa L. A. Wright Jr. 1971-4-9 28 San Mateo Found practically in San Francisco Bay, about 250 yds sw from the Coyote Point Harbor building, ca. 1.5 mi e of Highway 101, San Mateo. Off of Coyote Pt. road. Elevation less than 10 ft. Comment
  RSA121019  Spartina foliosa J. T. Howell 1956-11-22 31962 San Mateo Redwood City Comment
  JROH5850  Spartium junceum Diane Renshaw 2014-2-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek Delta of Searsville Lake. Comment
  UCD99161  Spergula arvensis W. A. Harvey 1948-6-28 1694 San Mateo 1 mile south of town of Half Moon Bay. Comment
  CAS-BOT-BC390206  Spergularia bocconi Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo San Bruno Mountains. P.G.&E. Marsh Comment
  RSA224264  Spergularia bocconi P. H. Raven 1954-5-16 6954 San Mateo Oceanic bluffs North of mouth of Lobos Creek. Comment
  SEINET1877518 Image available Spergularia bocconi Tom Hensel 1973-7-10 278 -A San Mateo Pigeon Point lighthouse, 8.5 mi N of San Mateo-Santa Cruz Co. line. Comment
  RSA18465  Spergularia macrotheca C. B. Wolf 1927-6-29 543 San Mateo South of Pebble Beach near Pescadero Comment
  CDA24131  Spergularia macrotheca T. C. Fuller 1967-6-13 15939 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 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-BC390461  Spergularia macrotheca var. macrotheca J. S. Rowley 1931-6-7 s.n. San Mateo Pigeon Point Comment
  CAS-BOT-BC390469  Spergularia macrotheca var. macrotheca David D. Keck 1933-5-11 2297 San Mateo Montara Light House and Radio Station Comment
  CAS-BOT-BC390473  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1937-11-25 610 San Mateo 3 mi. south of Half Moon Bay Comment
  JROH1773  Spergularia rubra John Hunter Thomas 1992-5-26 25352 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  RSA0098733  Spergularia villosa Lyman Benson 1934-7-29 6112 San Mateo Moss Beach. Pcific Ocean watershed. 15 Comment
  CAS-BOT-BC220976  Stachys Ned Cahill 1974-5-13 252 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CDA9322  Stachys ajugoides M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 867 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  RSA582109  Stachys ajugoides L. S. Rose 1936-5-23 s.n. San Mateo E. of Crystal Springs Lake. 152 Comment
  JROH2898  Stachys bullata John H. Thomas 1971-5-30 15977 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2902  Stachys bullata John Hunter Thomas 1979-6-12 19592 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  JROH5714  Stachys bullata John Rawlings 2015-6-2 1570 San Mateo Jasper Ridge Biological Preserve, Stanford University; north base of Searsville Rock, SE end of lake 108 Comment
  UC25937  Stachys bullata J. Burtt Davy 1895-4-20 1036 San Mateo Lake San Andreas Comment
  SEINET12343830  Stachys bullata L. S. Rose 1932-5-3 32215 San Mateo San Bruno 183 Comment
  RSA446690  Stachys rigida subsp. quercetorum Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  JROH2891  Stachys rigida var. quercetorum Herbert Dengler 1961-4-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by S.F. Cr. near E corner of preserve Comment
  JROH5848  Stachys rigida var. quercetorum Marcel Reeves 1954-4-23 49 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake 167 Comment
  CAS-BOT-BC374796  Stebbinsoseris heterocarpa K. L. Chambers 1952-5-24 417 San Mateo 1.7 mi. towards Woodside from Skyline junction of Woodside-La Honda road, (1.7 mi. e. of Skyline Blvd.). [Locality info from collection label and voucher label combined.] Comment
  JEPS51122  Stellaria media W. L. Jepson 1920-3-14 8427 San Mateo Burlingame Comment
  JROH1780  Stellaria media John H. Thomas 1973-3-12 16489 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1785  Stellaria media John Hunter Thomas 1981-4-23 20492 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5560  Stellaria nitens John Rawlings 2013-4-19 1154 San Mateo Jasper Ridge Biological Preserve, Stanford University. South side of Trail 11 in a level section in chamise. 136 Comment
  POM88000  Stephanomeria virgata L. R. Abrams 1902-9-28 3002 San Mateo New Grade Road. Comment
  JROH5323  Stipa lepida John H. Thomas 1977-5-14 18610 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5326  Stipa lepida John Hunter Thomas 1988-4-28 24413 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5388  Stipa miliacea var. miliacea John Hunter Thomas 1989-5-30 24757 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM149336  Stylomecon heterophylla C. F. Baker 1902-5-4 745 San Mateo Woodside. Comment
  POM149358  Stylomecon heterophylla A. D. E. Elmer 1903-04 4921 San Mateo Spanishtown Comment
  CAS-BOT-BC271638  Symphoricarpos albus var. laevigatus D. E. Breedlove 1974-5-13 36218 San Mateo Brushy slopes San Pedro Valley Park, Pacifica 152 Comment
  UC527526  Symphoricarpos albus var. laevigatus C. B. Wolf 1931-8-20 San Mateo 2 mi back Stanford University (near Schenkel's Camp, Los Trancos Creek); Los Trancos Creek 91 Comment
  UC75077  Symphoricarpos albus var. laevigatus C. F. Baker 1901-9-5 238 San Mateo w side Kings Mt. Comment
  CAS-BOT-BC271639  Symphoricarpos albus var. laevigatus Deborah Hichborn 1920-5-17 s.n. San Mateo Ridge above Searsville Lake, Santa Cruz Mountain Peninsula Comment
  RSA246190  Symphoricarpos albus var. laevigatus E. K. Balls 1965-9-18 12170 San Mateo 1 mile W from Skywood along Hwy 81 from Woodside to junction with Hwy 35. Comment
  CAS-BOT-BC237061  Symphoricarpos mollis Eric Walther 1919-7-4 s.n. San Mateo Woodside Comment
  CAS-BOT-BC237068  Symphoricarpos mollis Fred Hemphill 1973-4-15 672 San Mateo Area north of Malabar Road and Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC237069  Symphoricarpos mollis Fred Hemphill 1973-4-22 741 San Mateo Area north of Malabar Road and Melendy Drive, San Carlos 207 Comment
  JROH1687  Symphoricarpos mollis John Rawlings, Ann Lambrecht 2010-5-2 1097 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near west end of Birder's Trail between and parallel Rd. E and Trail 7 150 Comment
  CAS-BOT-BC99052  Symphyotrichum chilense Lewis S. Rose 1933-10-14 33381 San Mateo Visitacion Valley Comment
  UC87085  Symphyotrichum chilense C. F. Baker 1902-9-2 1550 San Mateo Crystal Springs Lake Comment
  OBI59917  Symphyotrichum chilense David J. Keil 1988-11-19 21201 San Mateo Highway 1, south of Half Moon Bay Comment
  SJSU11816  Symphyotrichum subspicatum R. L. Sears 1968-5-18 73 San Mateo by Higway One, 3 miles N of Pescadero Comment
  CDA34524  Tamarix parviflora T. Hyland 2011-3-1 San Mateo CalTrans right of way 100 meters west of gate leading to Cascade Creek mouth. 0 Comment
  SJSU15440  Tanacetum parthenium Toni Corelli 2011-8-31 717 San Mateo Pescadero State Beach and Marsh Natural Preserve, Round Hill Trail at the end of Water Lane Road 5 Comment
  CAS-BOT-BC353472  Taraxacum officinale Peter Rubtzoff 1977-4-14 8943 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. East Fork Colma Creek canyon area at the NW corner of Fog Forest, San Bruno Mountains. Comment
  UCSB11442  Taraxia ovata Olson, Jim 1962-4-17 San Mateo 1 mile east of Halfmoon Bay; on road to San Mateo 15 Comment
  UCD107044  Taraxia ovata Ogden C. Riddle 1941-4-6 66 San Mateo Finney Ridge, near Half Moon Bay. 243 Comment
  JROH373  Tauschia kelloggii John H. Thomas 1963-3-20 10028 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  CAS-BOT-BC447472  Tellima grandiflora A. D. E. Elmer 1903-6-1 4702 San Mateo Pescadero Comment
  UCR121562  Tellima grandiflora George K. Helmkamp, E. A. Helmkamp 1999-6-28 4971 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CAS-BOT-BC389698  Tellima grandiflora Mary K. Wicksten 1972-7-5 118 San Mateo Huddart Park Comment
  RSA127726  Tetragonia tetragonoides John H. Thomas 1959-7-8 8015 San Mateo Low moist coastal bluffs at Pescadero Beach. Comment
  JROH3504  Thalictrum fendleri var. polycarpum D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. On Searsville Ridge Comment
  CAS-BOT-BC399853  Thalictrum polycarpum George Oberlander 1949-4-17 91 San Mateo San Francisco Watershed Reserve. Top Sawyer Ridge Comment
  JROH1598  Thysanocarpus curvipes John Hunter Thomas 1982-4-28 20870 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1611  Thysanocarpus curvipes John Hunter Thomas 1987-4-4 24167 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  JROH1618  Thysanocarpus curvipes John Hunter Thomas 1989-4-20 24642 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1624  Thysanocarpus curvipes John Hunter Thomas 1992-4-4 25129 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC66682  Thysanocarpus curvipes George Oberlander 1949-4-22 688 San Mateo San Francisco Watershed Reserve. On Northern Cahill Ridge. Comment
  JROH1600  Thysanocarpus curvipes subsp. elegans John Hunter Thomas 1983-4-21 21633 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM354789  Tiarella trifoliata var. unifoliata E. S. Spalding 1924-6-6 s.n. San Mateo La Honda. Comment
  JROH382  Torilis nodosa John H. Thomas 1977-5-14 18611 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA347049  Torreya californica Lyman Benson 1930-6-14 2156 San Mateo Small creek, south La Honda, Santa Cruz Mountain Range 244 Comment
  SEINET3876264 Image available Torreya californica Ira L. Wiggins 1945-5-5 11161 San Mateo Along La Honda Creek about 1 mile above La Honda.; 0 152 Comment
  SEINET10793120  Torreyochloa pallida var. pauciflora Adolph D. E. Elmer Elmer 4692 San Mateo Pilarcitos Creek Comment
  RSA15296  Toxicodendron diversilobum C. B. Wolf 1927-4-3 266 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  JROH4759  Toxicoscordion fremontii John H. Thomas 1977-4-8 18522 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4760  Toxicoscordion fremontii John Hunter Thomas 1980-4-10 19871 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC57068  Tragopogon porrifolius Steven Triano 1988-5-24 190 San Mateo On the sw corner of the jct. of Portola Road and Old La Honda Road, ca 3.2 mi s of Woodside. 115 Comment
  CAS-BOT-BC377136  Tragopogon porrifolius W. R. Dudley 1897-5-12 s.n. San Mateo Santa Cruz Peninsula. On road from Bay to Menlo Park Comment
  RSA681673  Trichostema lanatum Deb Annuschka 1990-11-16 388 San Mateo Yerba Buena Herbarium. Comment
  JROH3391  Trientalis latifolia John H. Thomas 1973-5-5 16764 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC165515  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1893-6-22 836 San Mateo Lake Pilarcitos Comment
  UC16607  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1893-6-17 774 San Mateo Belmont Comment
  JROH2239  Trifolium barbigerum John H. Thomas 1973-4-14 16566 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD147019  Trifolium barbigerum Robert E. Preston 2011-6-16 2864 San Mateo Santa Cruz Mtns, Oil Creek watershed, 1.7 mi NW of Waterman Gap. 298 Comment
  JROH2249  Trifolium bifidum var. decipiens John H. Thomas 1955-5-6 5009 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC006001  Trifolium buckwestiorum Randall Morgan 1996-5-18 2955 San Mateo Seed from Coal Mine Ridge Comment
  UCR123140  Trifolium campestre George K. Helmkamp, E. A. Helmkamp 2001-6-2 6766 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  JEPS127789  Trifolium depauperatum var. truncatum Adam C. Schneider with C. Matt Guilliams 2013-4-7 60 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH2280  Trifolium dubium John Hunter Thomas 1980-4-10 19878 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  SJSU15441  Trifolium fragiferum Toni Corelli 2011-8-31 714 San Mateo Pescadero State Beach and Marsh Natural Preserve, Round Hill Trail at the end of Water Lane Road 8 Comment
  JROH2287  Trifolium fucatum John H. Thomas 1958-5-10 7148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2296  Trifolium fucatum John Hunter Thomas 1980-5-6 19924 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU7974  Trifolium fucatum S. H. Anderson 1962-4-15 San Mateo Burlingame Hills Comment
  JROH2312  Trifolium glomeratum Ann Lambrecht 2006-4-21 23 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside, N side of Road A, in old seven acre lease lot Comment
  JEPS127823  Trifolium gracilentum Adam C. Schneider with C. Matt Guilliams 2013-4-7 80 San Mateo Comment
  JROH5588  Trifolium gracilentum John H. Thomas 1969-4-12 14880 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC165628  Trifolium gracilentum J. Burtt Davy 1895-1 1026 San Mateo Pilarcitos Comment
  UCSC005900  Trifolium macraei Randall Morgan 1996-5-24 2966 San Mateo Pacifica, From Montara Mtn. Comment
  CDA27997  Trifolium microcephalum T. C. Fuller 1967-6-13 15940 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  POM277915  Trifolium microcephalum Lyman D. Benson 1930-5-1 2050 San Mateo Stanford University. Mt. Range: San Lorenzo. 122 Comment
  UCD109276  Trifolium oliganthum R. Tofsrud 1952-1 2 San Mateo Near Foster. 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
  JROH2362  Trifolium subterraneum John Hunter Thomas 1987-5-19 24299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12156854  Trifolium variegatum L. S. Rose 1937-1 37251 San Mateo Burlingame 91 Comment
  UC165501  Trifolium variegatum var. melananthum J. Burtt Davy 1895-1 1017 San Mateo Pilarcitos Comment
  JROH5703  Trifolium variegatum var. variegatum John Rawlings 2015-3-15 1356 San Mateo Jasper Ridge Biological Preserve, Stanford University; grassy drainage on ridge-top serpentine prairie. 188 Comment
  UCSC004602  Trifolium vesiculosum Randall Morgan 2004-4-16 4239 San Mateo Dejernosi property NW of Skylanda Comment
  CDA28079  Trifolium willdenovii D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JROH2403  Trifolium willdenovii John Hunter Thomas 1978-4-20 19079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1130146  Trifolium willdenovii H. S. Yates 1935-5-8 5202 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  POM126702  Trifolium willdenovii R. L. Pendleton 1907-4-20 609 San Mateo Lake Merced. 30 Comment
  SD39589  Trifolium wormskioldii Edith A. Purer 1933-7-27 5385 San Mateo 2.0 miles south of Pigeon Point. Comment
  CAS-BOT-BC401045  Trillium J. Lovelle 1926-8-1 39 San Mateo Mt. Ellen Trail Comment
  UC142121  Trillium chloropetalum Michener and Bioletti March, 1893 San Mateo near Colma Comment
  UC4021  Trillium chloropetalum Michener and Bioletti Mar 1893 4 San Mateo near Colma Comment
  POM170078  Trillium chloropetalum var. chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC521074  Trillium chloropetalum var. giganteum W. R. Dudley 1894-3-24 s.n. San Mateo Santa Cruz Peninsula: Bank of Pescadero Creek Comment
  CAS-BOT-BC521203  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula: Below San Andreas Dam Comment
  SEINET12046255  Trillium chloropetalum var. giganteum C. F. Leithold 1894-1 s.n. San Mateo Santa Cruz Peninsula, Woodside Comment
  CAS-BOT-BC133433  Trillium ovatum A. D. E. Elmer 1903-4-1 4752 San Mateo Portola Comment
  RSA15280  Trillium ovatum Carl B. Wolf 1927-4-3 246 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  JROH1649  Triodanis biflora John Hunter Thomas 1979-6-12 19586 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1073397  Triphysaria eriantha subsp. eriantha George B. Rossbach 1955-3-26 476 San Mateo next ridge n San Bruno Mt. (open slope of pinnacle, n San Mateo County); next ridge n of San Bruno Mt. 243 Comment
  CAS-BOT-BC238556  Triphysaria floribunda A. D. E. Elmer 1903-4-1 4522 San Mateo South San Francisco Comment
  CAS-BOT-BC238562  Triphysaria floribunda L. R. A. 1902-4-13 2321 San Mateo Lake San Andreas Comment
  CAS-BOT-BC238567  Triphysaria floribunda George Oberlander 1951-3-30 1182 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC238576  Triphysaria floribunda Roxana S. Ferris 1921-4-7 2134 San Mateo The Santa Cruz Mountain Peninsula. San Bruno Mt. 60 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
  SEINET7097920  Triphysaria versicolor subsp. faucibarbata 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
  POM277006  Triteleia ixioides subsp. ixioides Lyman Benson 1930-5-3 2093 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  CAS-BOT-BC526360  Triteleia laxa H. L. Dale 1920-6-1 s.n. San Mateo Back of Menlo Park Comment
  CAS-BOT-BC526364  Triteleia laxa Philip C. Wheeler 1965-6-8 s.n. San Mateo Crocker Hills, San Bruno Mountain Comment
  CAS-BOT-BC526787  Triteleia laxa George Oberlander 1950-5-6 892 San Mateo Under Douglas Fir, Cahill Ridge Comment
  JEPS82916  Triteleia peduncularis Roy E. Buck and Randall A. Morgan 1983-6-7 332 San Mateo in triangle of Edgewood and Canada Rds. and Hwy. I-280 San Francisco Watershed Reserve 152 Comment
  CAS-BOT-BC200486  Triticum aestivum Walter Knight; Irja Knight 1965-4-24 1037 San Mateo Point San Bruno 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-BC74058  Turritis glabra Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillside Boulevard. South San Francisco. Comment
  CAS-BOT-BC74059  Turritis glabra Elizabeth McClintock; Paul Reeberg 1988-3-15 s.n. San Mateo San Bruno Mountain. Near Ranger Station (Nike Base). Comment
  RSA563837  Ulex europaeus Don Pendleton 1993-10-28 s.n. San Mateo San Bruno Mountain State/County Park, 0.3 mi. E. of the park gate/parking lot on Guadalupe Canyon Park. 300 Comment
  UC2015626  Ulex europaeus Don Pendleton 1993-11-20 San Mateo Daly City at 333 Hickey Blvd. Comment
  UCSB26557  Ulex europaeus Havlik, Neil 1969-3-27 San Mateo North side of San Bruno Mountain, near the junction of Radio Road and Guadalupe Road Comment
  JROH4219  Ulmus minor John Hunter Thomas 1977-6-16 18804 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4222  Ulmus minor John Hunter Thomas 1987-4-30 24214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM272292  Umbellularia californica Lyman Benson 1931-2-16 2582 a San Mateo Stanford University, San Francisquito Creek. 61 Comment
  JROH1289  Uropappus lindleyi John H. Thomas 1974-4-24 17186 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1292  Uropappus lindleyi John Hunter Thomas 1986-5-6 24013 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC199179  Vaccinium cespitosum Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo Near radio station on San Bruno Mountain, Kamchatka Point Comment
  CAS-BOT-BC199363  Vaccinium ovatum W. R. Dudley 1898-3-5 s.n. San Mateo Kings Mountain Comment
  RSA169352  Vaccinium ovatum L. S. Rose 1964-3-14 64005 San Mateo Kings Mountain. 610 Comment
  SJSU11091  Vaccinium ovatum S. H. Casey 1969-5-18 260 San Mateo near summit San Bruno Mt Comment
  UC22218  Vaccinium parvifolium W. J. V. Osterhout Jul 1899 San Mateo Near Pescadero Comment
  CAS-BOT-BC76144  Vancouveria planipetala A. D. E. Elmer 1903-5-1 4922 San Mateo Iverson's Place. Pescadero Creek. Comment
  CAS-BOT-BC76148  Vancouveria planipetala D. D. Davis 1903-5-2 s.n. San Mateo Near Iverson's on Pescadero Creek. Comment
  CDA39072  Verbascum virgatum Joseph Hannen 2013-7-15 PDR# 410 P06096014 San Mateo Redwood City; Edgewood Road. 0 Comment
  CAS-BOT-BC389699  Verbena lasiostachys Lorene Sigal 1969-7-1 s.n. San Mateo At Polhemus Road and Crystal Springs Road junction 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
  UC306773  Verbena lasiostachys var. scabrida A. D. E. Elmer July, 1903 4950 San Mateo Crystal Springs Lake Comment
  RSA187258  Veronica persica Mary Helen Kenson 1956-4-21 133 San Mateo At 347 Alberta Way, Hillsborough, 1 mile from Skyline Blvd. Comment
  SJSU15216  Vicia benghalensis Toni Corelli 2010-5-4 624 b San Mateo Ano Nuevo State Park, Cascade Field, Cascade Creek Trail 25 Comment
  JROH2432  Vicia disperma Toni Corelli & Ann Lambrecht 2009-5-11 350 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 21 (Lower West Lake Trail) at inlet mouth 109 Comment
  SEINET7076099  Vicia sativa A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Longitude, UTM Zone 10, 551863mE, 4121109mN). [GPS Coordinate: WGS84/NAD83]. Comment
  UC1191599  Vicia sativa Malcolm A. Nobs and S. Galen Smith 1949-8-25 1547 San Mateo Sharp Park; marshes at Sharp Park 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
  UCR123141  Vicia sativa subsp. sativa George K. Helmkamp, E. A. Helmkamp 2001-6-2 6765 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  UCSB8438  Vicia sativa subsp. sativa Haller, John 1950-4-24 San Mateo Near Atherton, 3 miles northwest of Stanford University Comment
  CDA5531  Vinca major T. C. Fuller 1960-4-2 4065 San Mateo Skyline Boulevard, Woodside. 0 Comment
  CAS-BOT-BC264030  Viola adunca W. R. Dudley 1894-3-28 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Pebbly Beach, Pescadero Comment
  CAS-BOT-BC264042  Viola adunca Walter & Irja Knight 1965-3-28 978 San Mateo San Bruno Mountain. At Flower Garden adjacent to April Brook Comment
  UC483497  Viola adunca Ira L. Wiggins 1931-2-21 5091 a San Mateo Pescadero Beach Comment
  CAS-BOT-BC536833  Viola glabella Roxana S. Ferris 1920-4-26 1961 San Mateo Santa Cruz Mountain Peninsula: near mouth of canon of Pescadero Crek 243 Comment
  JEPS50384  Viola glabella James G. Davy 1934-1 226 San Mateo Watershed of San Gregorio Creek; Santa Cruz Mountains, La Honda, Watershed of San Gregorio Cr Comment
  RSA10996  Viola glabella Carl B. Wolf 1928-3-14 1533 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  POM190256  Viola ocellata D.