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
  SD41411  Abronia latifolia Edith A. Purer 1966-7-27 5381 San Mateo Two miles South of Pigeon Point Comment
  OBI48988  Acaena pinnatifida Michener & Bioletti, Bioletti May 1892 s.n. San Mateo Cemeteries Comment
  CAS-BOT-BC451116  Acaena pinnatifida var. californica A. D. E. Elmer 1903-4-1 4823 San Mateo San Bruno Hills Comment
  CAS-BOT-BC451119  Acaena pinnatifida var. californica Robert F. Hoover 1939-4-21 4053 San Mateo Two miles south of Colma Comment
  CAS-BOT-BC451135  Acaena pinnatifida var. californica A. D. E. Elmer 1903-4-1 4823 San Mateo San Bruno Hills Comment
  UC466763  Acaena pinnatifida var. californica R. L. Pendleton 1907-4-20 631 San Mateo Colma 60 Comment
  CAS-BOT-BC451125  Acaena pinnatifida var. californica Ira L. Wiggins 1942-5-26 10096 San Mateo Near the ocean, 2 1/2 miles south of Pescadero on the Old Coast Road. Comment
  CAS-BOT-BC219610  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  JEPS81238  Acanthomintha duttonii Susan C. Sommers 1982-5-20 San Mateo Edgewood Park Comment
  SD27833  Acanthomintha obovata Carl B. Wolf 1929-5-24 3723 San Mateo Open grassy hills above upper Emerald Lake back of Redwood City. Comment
  SD4349  Acanthomintha obovata Harry A. dutton, H. A. Walker May 26 & 29, 1915 3819 San Mateo Near the Menlo Golf Club. Found on a small area in sandy soil, on a hillside sloping to the south. Comment
  RSA0076539  Acanthomintha obovata subsp. duttonii Paul R. Hichborn 1920-6-1 s.n. San Mateo Back of Redwood City. Comment
  RSA0076540  Acanthomintha obovata subsp. duttonii Hester R. Davis 1920-6-2 182 San Mateo Back of Redwood City. Comment
  CAS-BOT-BC333208  Acer macrophyllum Elizabeth McClintock; Paul Reeberg 1988-4-6 s.n. San Mateo San Bruno Mountains. Above Margaret Ave., Brisbane Comment
  RSA131008  Acer macrophyllum Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  UCD117104  Acer negundo R. E. Dengler 1960-4-20 17 San Mateo near Corte de Madera Creek, 0.5 mile from its drainage into Searseville Lake, Jasper Ridge, Stanford Biological Reserve. 375 Comment
  CAS-BOT-BC336918  Acer negundo var. californicum Ira L. Wiggins 1925-4-11 1633 San Mateo Hillside across from Schroder's. One and one half miles about Stanford University. Comment
  CAS-BOT-BC21591  Achillea millefolium W. E. Lawrence; D. D. Keck 1933-5-11 L 5019 San Mateo Half Moon Bay Comment
  CAS-BOT-BC28767  Achillea millefolium H. M. Hall 1923-10-26 847 -C San Mateo Collected live in Montara, planted in Stanford Gardens and later vouchered from there. 0 Comment
  JROH449  Achillea millefolium John Hunter Thomas 1983-6-29 22701 San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Rattlesnake Rock 105 Comment
  CAS-BOT-BC18853  Achillea millefolium Barbara Shervanick 1973-4-1 813 San Mateo San Bruno Mountain, at the end of Crocker Road Comment
  CAS-BOT-BC21582  Achillea millefolium Cherie Wetzel 1969-6-20 863 San Mateo Near Canada College, Redwood City, just off Farm Hill Blvd. Comment
  CAS-BOT-BC21583  Achillea millefolium Elizabeth McClintock 1978-4-11 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC21594  Achillea millefolium Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain, above Fern Rock Comment
  JROH466  Achyrachaena mollis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH473  Achyrachaena mollis John Hunter Thomas 1986-5-6 24010 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA416306  Achyrachaena mollis D. D. Keck 1932-5-6 1489 San Mateo 4 miles west of Burlingame, at junction of Burlingame road and Skyline Boulevard. Comment
  SJSU7494  Acmispon americanus var. americanus L. S. Rose 1964-9-5 64071 San Mateo Emerald L W of Redwood City 243 Comment
  JROH2070  Acmispon glaber var. glaber D. E. Breedlove 1971-5-31 19376 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake 125 Comment
  JROH2076  Acmispon glaber var. glaber John Hunter Thomas 1989-5-11 24728 San Mateo Jasper Ridge Biological Preserve, Stanford University; near hillside laboratory 157 Comment
  JEPS128393  Acmispon wrangelianus Adam C. Schneider 2013-5-17 131 San Mateo Crystal Springs Reservoir. Comment
  JROH2085  Acmispon wrangelianus John H. Thomas 1956-4-7 5614 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2087  Acmispon wrangelianus John H. Thomas 1957-4-16 6663 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2099  Acmispon wrangelianus John H. Thomas 1974-4-12 17145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2103  Acmispon wrangelianus John Hunter Thomas 1980-4-10 19874 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2088  Acmispon wrangelianus Duncan M. Porter 1960-4-22 660 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-4 Comment
  CAS-BOT-BC391677  Actaea rubra W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula. By road halfway between Pescadero and San Gregorio Comment
  CDA352  Adenocaulon bicolor A. C. Browne 1952-7-13 San Mateo Pescadero Creek. 0 Comment
  POM204319  Adenocaulon bicolor I. L. Wiggins 1929-7-4 3773 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  CAS-BOT-BC139951  Adenostoma fasciculatum Fred Hemphill 1973-4-15 660 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC139952  Adenostoma fasciculatum Fred Hemphill 1973-4-22 744 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC139961  Adenostoma fasciculatum L. S. Rose 1941-6-12 41270 San Mateo Emerald Lake, hills west of Redwood City 120 Comment
  SEINET191610  Adenostoma fasciculatum Lewis S. Rose 1941-6-12 41270 San Mateo Hills of Redwood City Emerald Lake. 122 Comment
  RSA18438  Adenostoma fasciculatum var. fasciculatum Carl B. Wolf 1927-6-29 570 San Mateo Near La Honda, Santa Cruz Mts. 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
  CAS-BOT-BC65669  Adiantum jordanii George Oberlander 1950-3-11 512 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC65670  Adiantum jordanii Ira L. Wiggins 1928-4-14 2919 San Mateo Alpine Creek Road Comment
  RSA14803  Aesculus californica Forrest Shreve 1934-6-24 6755 San Mateo Jasper Ridge, W of Palo Alto. Comment
Read comments
Sep 19 2011
  RSA416391  Agoseris grandiflora D. D. Keck 1932-5-6 1460 San Mateo Belmont. Comment
  RSA18495  Agoseris grandiflora C. B. Wolf 1927-7-14 625 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  CAS-BOT-BC22976  Agoseris grandiflora var. grandiflora David D. Keck 1932-5-6 1460 San Mateo Belmont Comment
  CAS-BOT-BC23025  Agoseris grandiflora var. grandiflora George Oberlander 1949-7-30 333 San Mateo Grassland near San Andreas Lake Comment
  JROH479  Agoseris grandiflora var. grandiflora John H. Thomas 1967-5-31 12936 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC23018  Agoseris grandiflora var. grandiflora W. R. Dudley 1894-4-21 s.n. San Mateo San Mateo ravine Comment
  CAS-BOT-BC46128  Agoseris heterophylla Ned Cahill 1974-4-29 212 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  RSA18497  Agoseris heterophylla var. heterophylla C. B. Wolf 1927-7-14 623 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  POM51532  Agoseris hirsuta C. F. Baker 1901-10-20 s.n. San Mateo Summit of Coast Range Comment
  RSA128659  Agrostis avenacea P. H. Raven 1950-6-2 2272 San Mateo On the stand of San Andreas Lake. Comment
  JROH4783  Agrostis exarata W. Lennihan 1990-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Mapache trail, 100 yards south of Trail 10, right side of trail. 112 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
  JROH4810  Agrostis stolonifera John Rawlings 2009-7-23 1080 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy bed of San Francisquito Creek near Dennis Martin site marker. 71 Comment
  JROH4160  Ailanthus altissima John Hunter Thomas 1992-5-26 25353 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along SLAC corridor 82 Comment
  JROH4825  Aira caryophyllea John H. Thomas 1968-5-3 14447 San Mateo Jasper Ridge Biological Preserve, Stanford University 172 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
  CAS-BOT-BC138247  Aira caryophyllea var. caryophyllea Le Roy Abrams 1902-5-4 2405 San Mateo Woodside. Comment
  UCSC008506  Aira praecox Randall Morgan 2013-5-24 5526 San Mateo Bean Hollow State Beach Comment
  JROH4569  Allium John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4543  Allium amplectens John H. Thomas 1985-5-7 23645 San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine grassland beyond blue oak woodland Comment
  RSA310964  Allium dichlamydeum Robert F. Thorne, Percy C. Everett 1963-6-9 32236 San Mateo On top of San Bruno Mountain. 335 Comment
  SJSU6178  Allium dichlamydeum S. H. Casey 1969-5-18 246 San Mateo near Fern Rock, San Bruno Mt Comment
  UC766744  Allium lacunosum R. F. Hoover 1941-4-23 4910 San Mateo Redwood City hills Comment
  UCD138563  Allium neapolitanum H. Frederick 1972-4-1 s.n. San Mateo Bernal Ave., Burlingame. Comment
  RSA176772  Allium peninsulare var. franciscanum D. E. Breedlove 1963-5-13 4942 San Mateo SE corner of the jct. of Crystal Springs Road and Polhemus Road, west of San Mateo Comment
  CAS-BOT-BC475496  Allium triquetrum P. C. Wheeler 1966-3-27 s.n. San Mateo Crocker Industrial Park, San Bruno Mountain Comment
  CAS-BOT-BC170157  Alnus rhombifolia W. R. Dudley 1906-10-3 s.n. San Mateo Border of Pescadero Creek, opposite Svensons old place. Santa Cruz Mountain Peninsula Comment
  JROH1329  Alnus rhombifolia John Hunter Thomas 1992-5-26 25351 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek near bridge & below the dam Comment
  RSA262236  Alnus rhombifolia John H. Thomas 1971-5-30 15981 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC169341  Alnus rubra John H. Thomas 1965-11-26 11456 San Mateo 2.5 miles up Tunitas Creek Road (as measured along the road) from the ocean 60 Comment
  CAS-BOT-BC169342  Alnus rubra John H. Thomas 1955-3-18 4686 San Mateo 2.5 miles up Tunitas Creek Road (as measured along the road) from the ocean 60 Comment
  CAS-BOT-BC523926  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
  SBBG39514  Amaranthus deflexus L. S. Rose 1970-7-26 70079 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  UCR242715  Amaranthus deflexus A. C. Sanders 2012-11-11 40517 San Mateo SF Bay Area, Daly City near Colma, between Junipero Serra Blvd. and San Pedro Rd. on Washington St. 56 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
  RSA93926  Ambrosia chamissonis var. chamissonis F. W. Peirson 1925-9-13 6427 San Mateo Rockaway beach. Comment
  UC1206489  Ambrosia psilostachya L. R. A. 1902-9-21 2992 San Mateo Crystal Lake Comment
  RSA175131  Amelanchier pallida Robert F. Thorne 1963-6-9 32232 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower. 335 Comment
  RSA385132  Ammophila arenaria Edith A. Purer 1933-7-27 18181 San Mateo 2 mi. S of Pigeon Pt. Comment
  RSA0089685  Amsinckia intermedia G. Oberlander 1949-5-21 151 San Mateo Top of Cahill Ridge, San Francisco Watershed Reserve. Comment
  UCD15059  Anagallis arvensis A. Bennett 1977-5-29 40 San Mateo California, San Mateo Co.; 0.7 miles north of Hayne Road intersection along Highway 35 (Burlingane); 60 Comment
  UC1125509  Anaphalis margaritacea G. E. Sindel 1935-7-30 315 San Mateo 3/4 mi n of Pomponio Creek; Santa Cruz Quad. 259 Comment
  CAS-BOT-BC391920  Anemone grayi unspecified 1906-6-10 s.n. San Mateo Near King's Mt. House Comment
  CAS-BOT-BC221452  Angelica hendersonii Lewis S. Rose 1937-9-5 37647 San Mateo Mussel Rocks 60 Comment
  RSA19309  Angelica hendersonii L. S. Rose 1937-9-5 37647 San Mateo Mussel Rocks 61 Comment
  UC140427  Angelica tomentosa var. tomentosa E. L. Greene 1903-6-30 3354 San Mateo Pacific Coast, Crystal Springs Lake Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  CAS-BOT-BC273178  Anisocarpus madioides Josephine D. Randall 1907-4-27 90 San Mateo Santa Cruz Peninsula. Kings Mt Road Comment
  CAS-BOT-BC273181  Anisocarpus madioides Josephine D. Randall 1907-6-29 91 San Mateo Santa Cruz Peninsula. Portola Valley Comment
  JROH505  Anthemis cotula John Hunter Thomas 1979-6-2 19594 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  UCSC000808  Anthemis cotula G. E. Sindel 1935-7-25 312 San Mateo 0.25 mile W. of Pescadero Pescadero - Santa CruzQuadrangle 15 Comment
  CAS-BOT-BC102291  Anthemis cotula George Oberlander 1954-5-21 154 San Mateo Upper San Mateo Creek Comment
  RSA101037  Anthemis cotula G. Oberlander 1954-5-21 154 San Mateo Upper San Mateo Creek, San Francisco Watershed Reserve. Comment
  RSA116720  Anthemis cotula W. R. Dudley 1893-6-8 s.n. San Mateo Near Cedro Cottage, Stanford University Comment
  CAS-BOT-BC280641  Anthoxanthum occidentale John Hunter Thomas 1954-4-3 3820 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  CAS-BOT-BC280642  Anthoxanthum occidentale W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Mountain Peninsula. Moore's Place, Pescadero Creek Comment
  POM21058  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum C. F. Baker 1901-10-20 51 San Mateo Summit of Coast Range Comment
  JROH3604  Aphanes occidentalis John H. Thomas 1974-4-25 17216 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3610  Aphanes occidentalis John Hunter Thomas 1987-4-4 24170 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454495  Aphanes occidentalis H. A. Dutton 1900-3-11 s.n. San Mateo Woodside serpentine, Santa Cruz Pennisula Comment
  JROH3401  Aquilegia formosa John Hunter Thomas 1985-4-22 23539 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  UCSB42577  Aquilegia formosa Nixon, E. 1980-4-3 San Mateo 1 mile down Saywer Camp Rd. at Millbrae exit off of Fwy. 280 Comment
  CAS-BOT-BC17332  Arabis blepharophylla Lewis S. Rose 1961-4-5 61032 San Mateo San Bruno Mountains. 365 Comment
  CAS-BOT-BC17333  Arabis blepharophylla John H. Thomas 1961-5-7 9314 San Mateo San Bruno Mountains in northern part of county. 396 Comment
  HSC6552  Arabis blepharophylla Lincoln Constance, Rimo Bacigalupi, C. R. Bell 1951-3-25 3369 San Mateo SE side of Colma Canyon 61 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
  OBI15221  Arabis blepharophylla Lewis S. Rose 1961-4-5 61032 San Mateo San Bruno Mts 366 Comment
  CAS-BOT-BC128626  Arbutus menziesii Elmer I. Applegate 1895-3-9 315 San Mateo Woodside Comment
  JROH1921  Arbutus menziesii J. H. Thomas 1977-4-29 18578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM131700  Arbutus menziesii Stewart H. Burnham 1895-3-9 6555 San Mateo Outer Coast Range Comment
  RSA681632  Arbutus menziesii Annuschka Deb 1989-8-18 368 San Mateo [Unspecified] Comment
  CAS-BOT-BC24156  Arctostaphylos John H. Thomas 1967-2-9 12402 San Mateo Montara Mountain in Northern part of county. Between Pacifica and Montara. Comment
  CAS-BOT-BC24129  Arctostaphylos andersonii Elmer I. Applegate 1895-3-9 304 San Mateo Woodside Comment
  CAS-BOT-BC25317  Arctostaphylos andersonii Carl B. Wolf 1930-11-6 1811 San Mateo 2 miles N of the summit of Kings Mt., Skyline Blvd. 640 Comment
  POM367227  Arctostaphylos andersonii L. S. Rose 1947-3-11 47028 San Mateo Kings Mountain. 609 Comment
  RSA289982  Arctostaphylos andersonii Edward Lee 1936-1-26 1735 San Mateo King's Mountain Road, 4.7 miles from Woodside. East side of Cahill Ridge. Comment
  SEINET11989088  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I.; McClintock, E. 1981-1 4493 San Mateo Kamchatka Point, San Bruno Mt 320 Comment
  CAS-BOT-BC23510  Arctostaphylos crustacea Margaret A. Barry 1938-5-22 s.n. San Mateo Small patch on top of Coal Mine Ridge Comment
  SEINET11977765  Arctostaphylos crustacea J. I. McMurphy 1906-1 7 San Mateo Kings Mt., Santa Cruz Mts., Santa Cruz Peninsula 488 Comment
  SEINET11988253  Arctostaphylos crustacea Unknown 1959-1 321 San Mateo 3.5 mi from junction CA 5 on Kings Mt. Rd Comment
  SEINET11989199  Arctostaphylos crustacea E. McClintock, Knight, W.; Knight, I. 1982-1 4646 San Mateo San Pedro County Park, near Pacifica Comment
  JROH1929  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-4-29 15612 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1930  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-7-5 15665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1936  Arctostaphylos crustacea subsp. crustacea Toni Corelli 2006-1-20 308 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 134 Comment
  JROH1942  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1983-7-20 22893 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC24497  Arctostaphylos imbricata Peter H. Raven 1950-2-25 1383 San Mateo W. end of ridge behind NBC station, San Bruno Mtns. 457 Comment
  JEPS98830  Arctostaphylos imbricata James Roof May 1961 San Mateo San Bruno Mountain 400 Comment
  UCD51770  Arctostaphylos montaraensis Roman Gankin; W. R. Hildreth 1966-5-17 738 San Mateo Southeast-facing slope of Montara Mountain. Comment
  SEINET11993723  Arctostaphylos montaraensis W. Knight, Knight, I.; Wells, P. V. 1986-1 5373 San Mateo San Bruno Mountain 343 Comment
  RSA633496  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27571 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  RSA633497  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27572 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  RSA633502  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27570 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  CAS-BOT-BC27287  Arctostaphylos regismontana Mrs. E. C. Sutliffe 1933-3-15 s.n. San Mateo Kings Mt. Comment
  CDA28982  Arctostaphylos regismontana D. G. Kelch 2009-6-9 9 .395 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
Read comments
Aug 22 2011
  POM203925  Arctostaphylos regismontana E. C. Sutliffe 1934-2-2 s.n. San Mateo Kings Mountain. Comment
  UC1120848  Arctostaphylos regismontana A. E. Wieslander 1929-3-19 47 San Mateo Kings Mountain Rd Santa Cruz Quadrangle, Peters Creek (head of creek, near Plot 11) Comment
  UC549744  Arctostaphylos regismontana Lewis S. Rose 1934-2-10 34026 San Mateo Skyline Blvd 4 mi s Kings Mountain (region of type) Comment
  UC750515  Arctostaphylos regismontana Lewis S. Rose 1947-3-11 47028 San Mateo type locality Kings Mountain 609 Comment
  UCD166075  Arctostaphylos tomentosa Jack Major; M. Forde and S. Bamberg 1962-4-3 731 San Mateo Ano Nuevo Point. (Exact location unknown. Coordinates estimated by label maker). Comment
  POM132204  Arctostaphylos tomentosa subsp. crustacea A. D. E. Elmer 1903-05 4558 San Mateo Kings Mountain. Comment
  RSA636843  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24644 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636845  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24645 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120142  Arctostaphylos tomentosa subsp. crustacea A. E. Wieslander 1929-3-19 46 San Mateo Kings Mt. Rd Santa Cruz Quadrangle, Peters Creek (head of creek) 701 Comment
  UCD51856  Arctostaphylos tomentosa subsp. crustacea Roman Gankin 1959-2-22 321 San Mateo 3.5 miles from junction state route 5 on King's Mt. Road, San Mateo County, California. Comment
  UC1137485  Arctostaphylos tomentosa subsp. rosei G. E. Sindel 1935-8-20 337 San Mateo 1/2 mi n Sierra Moreno; Santa Cruz Quadrangle Comment
  SEINET11989278  Arctostaphylos tomentosa var. tomentosiformis Unknown 1966-1 739 San Mateo ca 0.4 mi NE of Peak Mountain of Montara Mountain range 488 Comment
  SEINET11987152  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 4055 San Mateo Tilden Botanic Garden, Berkeley, orig. from about 200 yds E of summit parking lot of San Bruno Mt Comment
  CAS-BOT-BC102179  Arctotheca Paul Reedberg 1988-4-27 s.n. San Mateo Adjacent to Camp Silverspot. San Bruno Mountains Comment
  UCR240613  Armeria maritima T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3523 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-BC47697  Armeria maritima subsp. californica W. R. Dudley 1896-4-17 s.n. San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC47705  Armeria maritima subsp. californica Ray H. Yanis 1951-5-12 99 San Mateo Pescadero 30 Comment
  CAS-BOT-BC47706  Armeria maritima subsp. californica J. H. Thomas 1963-8-4 10237 San Mateo Just north of Pigeon Point Light House Comment
  RSA6284  Arnica discoidea D. D. Keck 1932-5-11 1775 San Mateo East side of Kings Mountain, on Kings Mountain Road 350 Comment
  JROH513  Artemisia biennis Roxana S. Ferris 1924-10-6 4096 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake on Portola Highway 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
  JEPS20095  Artemisia douglasiana Peter H. Raven 1957-9-1 11296 San Mateo coastal bluffs 1.1 mi s Pigeon Point lighthouse Comment
  CAS-BOT-BC93933  Artemisia douglasiana George Oberlander 1949-9-25 380 San Mateo San Francisco Watershed Reserve, along stream entering San Andreas Lake Comment
  CAS-BOT-BC93637  Artemisia pycnocephala Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains - Reservoir Hill, west-facing slope 137 Comment
  UC1136000  Asarum caudatum H. S. Yates 1935-5-8 5214 San Mateo Pescadero Creek; Santa Cruz (San Mateo) quadrangle 30 Comment
  JROH428  Asclepias fascicularis Richard L. Garber 1971-7-13 57 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC186770  Astragalus gambelianus Lewis S. Rose 1956-7-2 56113 San Mateo Skyline Blvd., hills w. of San Mateo 182 Comment
  JROH1984  Astragalus gambelianus A. C. Kimber & Lucile Roush 1918-4-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1990  Astragalus gambelianus John H. Thomas 1968-5-3 14448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1996  Astragalus gambelianus John Hunter Thomas 1984-4-2 23273 3 C San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge fence Comment
  SEINET948341  Astragalus gambelianus Lois E. James 1946-1 1741 San Mateo Serpentine hills back of redwood city. High Road off Woodside Road. Comment
  UC1057449  Astragalus gambelianus G. Thomas Robbins 1937-4-11 98 San Mateo near Spring Valley Lakes (along road to Woodside); near Spring Valley Lakes, along road to Woodside Comment
  SD48960  Astragalus gambelianus Louis E. James 1947-4-11 1758 San Mateo Hills back of Redwood City. Comment
  UC903410  Astragalus gambelianus Lois E. James 1947-4-11 1757 San Mateo hills back of Redwood City back of Redwood City Comment
  UCD104788  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo Hills back of Redwood City. Comment
  JEPS54784  Astragalus nuttallii Katharine Brandegee c. 1912 San Mateo Tobin Comment
  CAS-BOT-BC177974  Astragalus nuttallii var. virgatus C. F. Leitholdt 1894-7-1 s.n. San Mateo Pescadero Comment
  CHSC40740  Astragalus nuttallii var. virgatus Delzie Demaree 1933-6-12 10376 San Mateo Baden Station, South San Francisco. Comment
  CAS-BOT-BC177973  Astragalus nuttallii var. virgatus C. F. Leitholdt 1894-7-29 s.n. San Mateo Pescadero Hills - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC172666  Atriplex lentiformis C. D. Duncan 1922-9-1 s.n. San Mateo Boncill Estate, Atherton Comment
  JEPS15531  Atriplex leucophylla G. Thomas Robbins 1956-8-18 3739 San Mateo along ocean shore near the mouth Pomponio Creek; near mouth Pomponio Creek Comment
  SEINET3409822 Image available Atriplex leucophylla Lewis S. Rose 1933-7-20 33305 San Mateo Sea beach, Granada, San Mateo County, California. Comment
  SEINET4135302  Atriplex leucophylla Lewis S. Rose 1941-9-27 41460 San Mateo Princeton, CA.; 0 2 Comment
  JROH5936  Atriplex prostrata Ann Lambrecht 2007-9-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek, left bank below Bear Creek confluence Comment
  CDA1749  Avena fatua T. C. Fuller 1971-6-1 19880 San Mateo 1 mile east of San Gregorio. 0 Comment
  JROH4843  Avena fatua John H. Thomas 1973-4-14 16559 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD56301  Avena fatua P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  SEINET3292746 Image available Baccharis Craig B. Davis 1968-6-25 D- 81 San Mateo Hillside ca. 1 mi. south of junction beginning the north end of Skyline Blvd. Comment
  POM308447  Baccharis douglasii Henry J. Ramsey, Henry J. Ramsey 1939-10-7 3060 San Mateo San Mateo Comment
  JEPS59963  Baccharis glutinosa Lewis S. Rose 1969-8-22 69099 San Mateo Skyline Blvd. & La Honda Rd. 609 Comment
  JROH545  Baccharis glutinosa John Hunter Thomas 1992-7-24 25385 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  UCR256527  Baccharis glutinosa Peter Rubtzoff 1976-10-5 8908 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC99517  Baccharis pilularis Carl B. Wolf 1930-11-5 1807 San Mateo 4 miles south of Pescadero 7 Comment
  CAS-BOT-BC99522  Baccharis pilularis Ned Cahill 1974-4-30 240 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC99523  Baccharis pilularis Ned Cahill 1974-4-18 118 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM350434  Baccharis pilularis L. S. Rose 1936-8-16 36712 San Mateo Granada 15 Comment
  RSA18342  Baccharis pilularis C. B. Wolf 1927-1-29 476 San Mateo Pebble Beach Comment
  CAS-BOT-BC16621  Barbarea orthoceras Fred Hemphill 1973-3-9 627 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16624  Barbarea orthoceras Fred Hemphill 1973-3-17 711 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16639  Barbarea orthoceras J. H. Thomas 1949-4-1 210 San Mateo West of Redwood City. Comment
  CAS-BOT-BC166953  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7961 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC166963  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7962 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JEPS90454  Barbarea orthoceras Dean W. Taylor 1992-3-19 12336 San Mateo Montara Mt. in saddle just e. San Pedro Mt. (reached via old paved rd. from San Pedro Valley, along ridge at BM 924); Santa Cruz Mts., Montara Mt. 7 1/2 Quad. (1980) 274 Comment
  JROH1452  Barbarea orthoceras John Hunter Thomas 1988-4-6 24373 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA195512  Barbarea orthoceras John H. Thomas 1966-4-22 11567 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  JROH3925  Bellardia trixago John Hunter Thomas 1986-6-7 24083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3927  Bellardia trixago John Hunter Thomas 1988-4-28 24419 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3928  Bellardia trixago John Hunter Thomas 1988-6-6 24510 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Lakeside Laboratory Comment
  RSA159407  Bellardia trixago John H. Thomas 1961-5-14 9376 San Mateo Just north of dam on San Mateo Creek. 122 Comment
  UCR121576  Bellardia trixago George K. Helmkamp, E. A. Helmkamp 1999-6-28 5008 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  RSA162481  Bellardia trixago E. K. Balls 1963-5-22 12066 San Mateo 2.7 mi. S. from Half Moon Bay, along State Hwy. 1. 15 Comment
  SJSU783  Bellardia trixago M. Bogner 1943-4-24 San Mateo near Menlo Park Comment
  CAS-BOT-BC100192  Bellis perennis Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC75882  Berberis pinnata Robert Setzer 1969-3-29 2138 San Mateo Coloma Canyon, San Bruno Mountain. Comment
  CDA3007  Beta vulgaris E. L. Labadie 1961-10-24 San Mateo Railroad tracks at Chestnut Street, Redwood City. 0 Comment
  CDA34347  Beta vulgaris E. Finley 1990-10-16 s.n. San Mateo Shoreline Blvd., Mountain View. 0 Comment
  UC662425  Bidens pilosa H. P. Chandler 1941-12-4 San Mateo 1/2 mi e of Half Moon Bay (along highway) Comment
  CAS-BOT-BC100317  Blennosperma nanum var. robustum Phillip C. Wheeler 1965-4-28 s.n. San Mateo Owl's Canyon Comment
  SJSU15760  Bolboschoenus maritimus subsp. paludosus Toni Corelli 2009-9-22 430 San Mateo Pomponio State Beach west of Hwy. 1 4 Comment
  SJSU15761  Bolboschoenus maritimus subsp. paludosus Toni Corelli 2009-9-22 431 San Mateo Pomponio State Beach west of Hwy. 1 4 Comment
  UC140513  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo Pacific Coast, La Honda La Honda; Pacific Coast, La Honda Comment
  CAS-BOT-BC95342  Bowlesia incana Walter Knight; Irja Knight 1965-5-9 1099 San Mateo Devil's Arroyo, San Bruno Mountain 274 Comment
  CAS-BOT-BC95343  Bowlesia incana Walter Knight; Irja Knight 1965-3-28 1107 San Mateo Trillium Gulch, San Bruno Mountain Comment
  CAS-BOT-BC417700  Boykinia occidentalis Josephine D. Randall 1907-7-28 361 San Mateo Iverson's near Peter's Creek Comment
  CDA36479  Brachypodium sylvaticum Ellen Gartside 2011-7-14 s.n. San Mateo Woodside; Old La Honda Rd., on hill above water tank. Comment
  JROH5719  Brachypodium sylvaticum John Rawlings 2015-10-4 1651 San Mateo Jasper Ridge Biological Preserve, Stanford University; south of Middle Lake, ranging from Preserve boundary fence south of Caretaker's Residence east into riparian woodland. 101 Comment
  SEINET14395443  Brachypodium sylvaticum J. 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
  CDA20462  Brachypodium sylvaticum K. Melo 2003-11-1 PDR 1387519 San Mateo San Francisco Bay Area; Oak Knoll Dr, Emerald Hills. 0 Comment
  UCD170111  Brachypodium sylvaticum R. Breckenridge; K. Filippini 2010-11-22 s.n. San Mateo Found across a number of properties in Woodside. Comment
  SEINET10481265  Brassica campestris David D. Keck 1932-2-16 Keck 1377 San Mateo Portola. Common in cultivated orchards, roadsides, etc. Comment
  CAS-BOT-BC28048  Brassica fruticulosa Elizabeth McClintock; Paul Reeberg 1989-4-10 s.n. San Mateo Guadalupe Hills. Near horse corral. Comment
  JROH5554  Brassica nigra John Rawlings 2013-5-28 1156 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few yards north of Rd F, 75 meters west of Escobar gate (just east of serpentine contact). 161 Comment
  CAS-BOT-BC30257  Brassica nigra Alice Eastwood; John Thomas Howell 1939-7-9 7439 San Mateo Skyline Blvd. east of La Honda. Comment
  CAS-BOT-BC36668  Brassica oleracea John H. Thomas 1966-5-28 11644 San Mateo In central part of Menlo Park near Post Office. Comment
  JROH1460  Brassica rapa John H. Thomas 1967-4-20 12704 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187280  Brassica rapa John H. Thomas 1965-4-29 10605 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  JROH1466  Brassica rapa John Hunter Thomas 1978-5-23 19221 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC186699  Brassicaceae Fred Hemphill 1973-3-17 713 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC186703  Brassicaceae Fred Hemphill 1973-3-9 628 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC145495  Briza maxima John R. Barth 1963-5-23 42 San Mateo Pebble Beach. Comment
  CHSC56621  Briza maxima Steven Triano 1988-5-24 178 San Mateo Along w side of Old La Honda Road ca 0.6 mi s of Portola Road and 3.8 mi s of Woodside. 201 Comment
  JROH4875  Briza maxima W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. After crossing dam, to left, on right side of path just before going downhill. Comment
  UCD57161  Briza maxima S. S. Tillett; I. Sternback 1956-6-25 551 San Mateo Skyline Drive. 487 Comment
  CAS-BOT-BC145332  Briza minor John H. Thomas 1950-4-27 1692 A San Mateo King's Mountain Road. Comment
  SEINET4183120 Image available Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  SEINET12059400  Brodiaea californica subsp. leptandra M. T. Doutt 1931-5-4 411 San Mateo Skyline Blvd., W of Hillbrae Comment
  CAS-BOT-BC484345  Brodiaea elegans subsp. elegans Ned Cahill 1974-5-30 323 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  UC1442900  Brodiaea terrestris subsp. terrestris Theodore F. Niehaus 1965-3-23 364 San Mateo e of Crystal Springs (100 yards e of San Mateo Juvenile Probation Center) Comment
  CAS-BOT-BC483175  Brodiaea terrestris subsp. terrestris James McMurphy 1906-5-8 s.n. San Mateo Between Woodside and Byre's Store Comment
  UCD57754  Bromus berteroanus Margaret Joy Marshall 1977-4-9 s.n. San Mateo San Mateo. Canada and Edgewood Rd. Comment
  UCSC007722  Bromus carinatus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC149017  Bromus carinatus var. carinatus E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Slope below Nike Station. Comment
  JROH5798  Bromus carinatus var. carinatus John Rawlings 2016-4-19 1724 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. 106 Comment
  RSA254230  Bromus diandrus Robert A. Norris 1975-3-31 2286 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  JROH4923  Bromus hordeaceus John H. Thomas 1978-5-16 s.n. 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
  JROH4945  Bromus madritensis subsp. madritensis John Rawlings 2013-4-14 1150 B San Mateo Jasper Ridge Biological Preserve, Stanford University; uphill from Trail 14 about 25 yards from the Rd E intersection 112 Comment
  RSA107096  Bromus marginatus L. S. Rose 1956-7-2 56115 San Mateo Skyline Blvd. hills w. of San Mateo 183 Comment
  SEINET3921866  Bromus marginatus Robert A. Norris 1984-3-21 4656 San Mateo Blue Blossom Hills, San Mateo Mts., CA.; 0 366 Comment
  CAS-BOT-BC162009  Bromus racemosus George Oberlander 1950-4-25 767 San Mateo San Francisco Watershed Reserve. San Andreas Valley. Comment
  CAS-BOT-BC161748  Bromus rubens Fred Hemphill 1973-4-15 679 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  JROH4962  Bromus sterilis John Rawlings 2013-4-9 1149 San Mateo Jasper Ridge Biological Preserve, Stanford University. Verge of Rd L near Ranger Bath. 107 Comment
  CAS-BOT-BC185397  Bromus vulgaris L. R. Abrams 1915-6-14 5562 San Mateo Kings Mountain Road. Comment
  CAS-BOT-BC233710  Buddleja davidii John H. Thomas 1968-12-18 14873 San Mateo About 0.9 miles inland from the coast along road toward Pescadero 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
  POM272601  Cakile edentula Lyman Benson 1937-6-27 8396 San Mateo Moss Beach. 3 Comment
  CAS-BOT-BC36949  Cakile maritima var. maritima John H. Thomas 1963-5-20 10116 San Mateo Ano Nuevo Island about one half mile off shore and about 20 mile northwest of Santa Cruz. Comment
  CAS-BOT-BC185142  Calamagrostis nutkaensis Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon. Comment
  SEINET10521069  Calamagrostis nutkaensis Adolph D. E. Elmer Elmer 5040 San Mateo San Pedro, Comment
  JROH4973  Calamagrostis rubescens Winkie Lennihan 1980-8-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Just before Redwood Trail divides, to the right - divides to go up to Serpentine Meadow or on along creek. Comment
  JEPS121454  Calandrinia ciliata Adam C. Schneider with C. Matt Guilliams 2013-2-2 190 San Mateo Crystal Springs Reservoir, between power transmission lines and Interstate 280. Comment
  JROH3327  Calandrinia ciliata John H. Thomas 1977-4-8 18516 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC635366  Calandrinia ciliata Herbert L. Mason 1927-4-23 3691 San Mateo roadside between La Honda and Pescadero Creek Comment
  JROH3328  Calandrinia menziesii John Hunter Thomas 1981-4-5 20263 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1636  Callitriche marginata John H. Thomas 1970-4-4 15544 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC85765  Calocedrus decurrens George Oberlander 1949-9-25 397 San Mateo San Francisco Watershed Reserve - Valley between Fiefield and Sawyer Ridges Comment
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Aug 28 2018
  JEPS61617  Calochortus albus W. L. Jepson 1922-3-19 9533 San Mateo back of Millbrae; Buriburi Ridge Comment
  CAS-BOT-BC492218  Calochortus albus David D. Keck 1932-5-13 1778 San Mateo Along Woodsideon La Honda road, east slope of Santa Cruz Mtns. Comment
  IRVC9082  Calochortus albus P. W. Rundel 1963-6-11 1117 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  SEINET12044764  Calochortus albus L. S. Rose 1935-1 35214 San Mateo 9 mi W of Stanford U Comment
  CAS-BOT-BC487809  Calochortus coeruleus K. Hoppaugh 1929-5-11 212 San Mateo La Honda grade Comment
  SEINET7096717  Calochortus luteus A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. NAD27, 37? deg. 24' 29ao, -122?_ 13' 33ao (converted to WGS84 decimal degrees) UTM Zone 10, 568517mE, 4140222mN. Comment
  HSC23996  Calochortus tolmiei Mary Katherine Wicksten 1971-6-22 86 San Mateo Huddart Park, by rd. to family campground Comment
  CAS-BOT-BC270667  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo W of Redwood City, Emerald Lake 120 Comment
  JROH564  Calycadenia multiglandulosa D. E. Breedlove 1971-5-31 19387 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  POM351403  Calycadenia multiglandulosa subsp. cephalotes L. S. Rose 1937-9-21 37658 San Mateo Emerald Lake, west of Redwood City. 183 Comment
  CAS-BOT-BC224651  Calystegia purpurata subsp. purpurata Lewis S. Rose 1950-5-20 50141 San Mateo Emerald Lake region, hills w. of Redwood City 243 Comment
  CAS-BOT-BC224661  Calystegia purpurata subsp. purpurata James McMurphy 1905-9-15 s.n. San Mateo Goat Ranch, near Stanford University Comment
  JROH1841  Calystegia purpurata subsp. purpurata John H. Thomas 1968-5-22 14457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC465972  Calystegia soldanella Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  UC909351  Calystegia soldanella Ira L. Wiggins 1950-5-20 12351 San Mateo Pescadero Beach Pescadero Beach (upper margin beach) Comment
  UCD67927  Calystegia subacaulis Ricky D. Pearce 1978-5-6 18 San Mateo On Tom Sawyer Camp Road on the E. bank of Crystal Springs Reservoir. Comment
  CAS-BOT-BC224346  Calystegia subacaulis subsp. subacaulis Margaret A. Barry 1937-5-8 57 San Mateo Exposed slopes of Coal Mine Ridge Comment
  POM126855  Camissonia ovata R. L. Pendleton 1909-4-3 1342 San Mateo Along Los Trancos Creek, 4 miles back of Stanford University 145 Comment
  CAS-BOT-BC160328  Camissoniopsis cheiranthifolia subsp. cheiranthifolia A. D. E. Elmer 1903-7-1 4942 San Mateo San Pedro Comment
  UCSC007726  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  RSA17965  Campanula prenanthoides C. B. Wolf 1927-7-13 714 San Mateo La Honda Grade. Santa Cruz Mountains Comment
  SEINET10463066  Campanula prenanthoides Wolf 1927-8-13 WOLF 714 San Mateo Summit La Honda Grade Comment
  CAS-BOT-BC37661  Cardamine californica W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Ravine north of Seal Cove. Comment
  CAS-BOT-BC37664  Cardamine californica Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountains. Cable Ravine. Comment
  CAS-BOT-BC37687  Cardamine californica Lewis S. Rose 1936-3-11 36021 San Mateo Kings Mountain. 304 Comment
  JROH1481  Cardamine californica D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  POM144148  Cardamine californica var. integrifolia C. F. Baker 1902-4-12 501 San Mateo La Honda. Comment
  RSA484626  Cardamine californica var. integrifolia Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  UC483498  Cardamine californica var. integrifolia Ira L. Wiggins 1931-2-21 5089 a San Mateo 1/2 mi n Pebble Beach Hotel (Pescadero Beach); , n of Pebble Beach Hotel Comment
  JROH1495  Cardamine oligosperma John Hunter Thomas 1981-4-5 20275 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  CAS-BOT-BC37982  Cardamine oligosperma Walter Knight; Irja Knight 1965-3-14 939 San Mateo San Bruno Mountain. Romanzoffia Ravine. Comment
  CAS-BOT-BC37983  Cardamine oligosperma Walter Knight; Irja Knight 1965-3-28 1018 San Mateo San Bruno Mountain. Trillium Gulch. Comment
  CAS-BOT-BC37991  Cardamine oligosperma Javier Penalosa 1963-3-9 2686 San Mateo San Bruno Mountain. Ravine 0.5 mile east of 1314 foot summit. 304 Comment
  CAS-BOT-BC384843  Cardionema ramosissimum Roxana S. Ferris 1921-4-7 2143 a San Mateo Santa Cruz Mountain Peninsula. San Bruno Mt. 91 Comment
  SJSU15404  Cardionema ramosissimum Toni Corelli 2010-4-9 669 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica, CA 36 Comment
  CAS-BOT-BC384844  Cardionema ramosissimum Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. In old quarry in Colma Canyon Comment
  CAS-BOT-BC281710  Carduus pycnocephalus Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  JROH5549  Carduus tenuiflorus John Rawlings, Ann Lambrecht 2011-6-21 1196 San Mateo Jasper Ridge Biological Preserve, Stanford University. Equestrian Trail from Webb Ranch to Escobar Rd. in switchback zone 105 Comment
  CDA6893  Carduus tenuiflorus W. S. Ball 1946-4-19 San Mateo 5 miles below Half Moon Bay. 0 Comment
  CAS-BOT-BC19328  Carex barbarae J. H. Thomas 1958-8-1 7371 San Mateo Sand dunes about 0.5 mile north of mouth of Pescadero Creek. 0 Comment
  UC823145  Carex barbarae Alice Eastwood, John Thomas Howell 1938-4-24 5247 San Mateo Lobitas Comment
  CAS-BOT-BC19320  Carex barbarae W. R. Dudley 1906-5-1 s.n. San Mateo The Santa Cruz Mountain Peninsula. Bank of raod back from San Carlos Station. Comment
  CAS-BOT-BC19329  Carex barbarae Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crystal Cave Canyon east of quarry. Comment
  JROH4323  Carex bolanderi John Rawlings 2010-5-13 1056 San Mateo Jasper Ridge Biological Preserve, Stanford University; 100 feet west of Leonard's Bridge at time of collection. Bridge subsequently extended covering this site. 106 Comment
  CAS-BOT-BC19540  Carex bolanderi George Oberlander 1950-5-21 946 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  SEINET7364526 Image available Carex bolanderi L. S. Rose 1933-6-23 33253 San Mateo Kings Mountain Comment
  POM193987  Carex densa W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula; Near Summit Springs, Kings Mt. Comment
  UCD140267  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4327 San Mateo Visatacion Valley. Comment
  POM193986  Carex exsiccata W. R. Dudley 1894-05 s.n. San Mateo San Mateo County: Woodside to Crystal Springs Reservoir Comment
  JROH4345  Carex gracilior John Rawlings 2010-5-10 0987 San Mateo Jasper Ridge Biological Preserve, Stanford University. About five feet north (lakeside) of Leonard's bridge. 107 Comment
  JROH4347  Carex harfordii John Hunter Thomas 1986-4-24 23980 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along west side of Searsville Lake between boat ramp and "old beach." Comment
  JROH4348  Carex harfordii Carol Zabel 2006-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the semaphore grass vernal depression. Comment
  SJSU15225  Carex harfordii Toni Corelli 2012-6-28 801 San Mateo Pescadero State Beach, North Pond 3 Comment
  CAS-BOT-BC119443  Carex nudata Charles Piper Smith 1908-4-13 1399 San Mateo Stanford Univ. San Francisquito Creek. Comment
  CAS-BOT-BC119444  Carex nudata W. L. Scofield 1908-4-2 s.n. San Mateo Near Roble Bridge, Stanford University 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
  JROH4356  Carex nudata John Hunter Thomas 1979-6-12 19587 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  CAS-BOT-BC119345  Carex obnupta W. R. Dudley 1896-4-17 s.n. San Mateo Pebble Peach Pasture, Pescadearo, Santa Cruz Mountain. Comment
  CAS-BOT-BC32499  Carex obnupta Henry Nicholas Bolander 1566 San Mateo Near Fort Point Comment
  SEINET10711654  Carex obnupta Lewis S. Rose 1936-6-10 Rose 36317 San Mateo Chinese Cemetery, E. of Baden. 61 Comment
  CAS-BOT-BC278759  Carex pendula John Rawlings 2011-7-3 s.n. San Mateo Along Purisima Creek, 200 m E of junction of Purisima Creek Trail and path to Judson Redwood Grove, about 0.5 air miles E of Higgins Canyon Road, Purisima Creek Redwoods Open Space Preserve, W slope of Santa Cruz Mountains; San Francisco Bay (SnFrB) 165 Comment
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Jan 26 2018
  CAS-BOT-BC117650  Carex serratodens Lewis Samuel Rose 1936-5-28 36304 San Mateo Emerald L., W of Redwood City. Comment
  SEINET10949228 Image available Carex serratodens Charles F. Baker 1902-5-10 Baker 811 San Mateo Crystal Springs Lake, Comment
  SEINET7575205 Image available Carex serratodens Wilhelm Suksdorf 1913-6-22 248 San Mateo Crystal Springs Lake. Comment
  CDA34492  Carex subbracteata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .176 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  JROH4362  Carex subbracteata John Rawlings 2010-5-19 1053 San Mateo Jasper Ridge Biological Preserve, Stanford University. At west edge of California semaphore grass vernal depression. 122 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
  RSA789962  Carex subbracteata Peter Rubtzoff 1976-6-30 8707 San Mateo San Bruno Mtns: Saddlle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, westernmost part of the area. Comment
  CAS-BOT-BC116828  Carex subbracteata var. subbracteata W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs. Comment
  CAS-BOT-BC115515  Carex tumulicola W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs. Comment
  JROH4373  Carex tumulicola John Rawlings, Carol Zabel, Ann Lambrecht 2005-6-15 0909 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Several yards from the intersection of Trail 2 with Trail 3. 86 Comment
  CHSC39844  Carpobrotus Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  CAS-BOT-BC230110  Carpobrotus chilensis Elsie Zeile 1909-8-23 s.n. San Mateo Granada Comment
  CDA42246  Carthamus creticus J. Beall 2002-9-17 PDR 065864 San Mateo San Francisco Bay Area; 1/4 mi E of Skyline Blvd at Windy Hill along fence. 0 Comment
  CAS-BOT-BC249192  Castilleja affinis David D. Keck 1940-5-15 5037 San Mateo Upper Crystal Springs Lake, east side 100 Comment
  POM15449  Castilleja affinis C. F. Baker 1902-4-6 464 San Mateo Crystal Springs Lake. Comment
  POM15472  Castilleja affinis C. F. Baker 1903-4-6 1877 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  CAS-BOT-BC249182  Castilleja affinis Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. At Flower Garden adjacent to April Brook Comment
  SD234175  Castilleja affinis Virginia Pinkus Ryder 1965-6-13 436 San Mateo San Bruno Mtn. above Olivet Cemetary. Growing in sun on dry W. slope. 121 Comment
  SEINET5542520  Castilleja affinis H. S. Gentry 1931-1 99 San Mateo 1 mile SE of Holy Cross Cemetery. Comment
  JEPS17620  Castilleja affinis subsp. affinis Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5443 San Mateo just opposite Thornton Beach (e of State Highway 1) Comment
  JROH3934  Castilleja affinis subsp. affinis Joseph J. Schweitzer 1951-4-21 36 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH3943  Castilleja affinis subsp. affinis John H. Thomas 1976-5-26 18156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR121541  Castilleja affinis subsp. affinis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4996 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JEPS60423  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1969-7-21 6663 San Mateo 2.5 mi from Tunitas Road junction with Skyline Boulevard (Tunitas Road) 487 Comment
  SJSU910  Castilleja ambigua J. W. Tilden 1946-7-15 1004 San Mateo Pescadero Comment
  JEPS9140  Castilleja ambigua subsp. ambigua N. L. Gardner 1914-7-11 San Mateo Moss Beach Comment
  JROH3961  Castilleja attenuata John Hunter Thomas 1978-4-20 19093 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD234177  Castilleja densiflora Claude Bonang 1958-4-4 13 San Mateo Jasper Ridge. Meadow. 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
  JROH3977  Castilleja densiflora subsp. densiflora John H. Thomas 1961-4-29 9189 San Mateo Jasper Ridge Biological Preserve, Stanford University; at western end of serpentine outcroppings Comment
  JROH3978  Castilleja densiflora subsp. densiflora John H. Thomas 1971-4-10 15751 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3980  Castilleja densiflora subsp. densiflora John Hunter Thomas 1978-4-25 19149 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3986  Castilleja densiflora subsp. densiflora John Hunter Thomas 1986-5-8 24026 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET13772767  Castilleja exserta A. A. Heller 1906-1 8381 San Mateo Near Ocean View, San Francisco. Comment
  JEPS19713  Castilleja exserta subsp. latifolia Peter H. Raven 1957-6-24 10970 San Mateo Pebble Beach Comment
  SEINET12288673  Castilleja foliolosa McCallum 1933-1 s.n. San Mateo in Los Trancus Woods Comment
  POM204428  Castilleja franciscana E. C. Sutliffe 1933-5-17 s.n. San Mateo Skyline Boulevard. Comment
  CAS-BOT-BC243832  Castilleja latifolia Walter Knight 1964-9-14 829 San Mateo Peak Mt., Montara Range Comment
  SEINET12288717  Castilleja latifolia var. wightii Unknown 1932-1 9099 San Mateo between Sky Line Drive & Half Moon Bay Comment
  JROH3994  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1961-4-8 9072 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4002  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1980-5-6 19930 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU661  Castilleja rubicundula subsp. lithospermoides A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville L Comment
  JEPS18907  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5447 San Mateo just n Montara Point Lighthouse (at the town of Montara); Montara Comment
  SBBG51587  Castilleja subinclusa subsp. franciscana J. Doty 1969-3-26 595 San Mateo E of jct of St Hwy 92, near summit of coast range, San Francisco Peninsula Comment
  SJSU11465  Castilleja subinclusa subsp. franciscana A. J. Hutchko 1962-5-20 San Mateo foot of Grove St, Half Moon Bay Comment
  JEPS34326  Castilleja wightii L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1332 San Mateo n flank San Pedro Mt. (along old county road over San Pedro and Montara mountains); , Montara Mts. 243 Comment
  JEPS34327  Castilleja wightii L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1333 San Mateo nw slope Montara Mt. (above summit of old county road) 304 Comment
  JEPS47396  Castilleja wightii L. R. Heckard 1964-6-24 1394 San Mateo near San Bruno Mt. summit (slope n of (below) transmitting station); San Bruno Mt. 304 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
  UC198264  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore Railroad Comment
  JEPS79097  Castilleja wightii L. R. Heckard 1980-5-3 5191 San Mateo s of Guadalupi Parkway, San Bruno Mt. (on slopes about Fern Rock, n part of San Bruno Mt., in upper end of drainage of Guadalupi Valley); San Bruno Mt., Guadalupi Valley, Fern Rock 182 Comment
  JEPS86211  Castilleja wightii L. R. Heckard Sep 1970 2464 San Mateo Bean Hollow State Beach; s of south parking lot Comment
  RSA294161  Castilleja wightii Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4229 San Mateo Alongside footpath on brushy slope about 50 ft. above a marshy lagoon border, N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  SBBG100089  Castilleja wightii R. Bacigalupi 1954-6-18 4553 San Mateo Alpine Rd, 0.25 mi below and W of its jct with rd to Portola State Park 426 Comment
  SEINET8357659  Castilleja wightii A. D. E. Elmer 1903-1 4761 San Mateo San Pedro. Comment
  JROH1522  Caulanthus lasiophyllus John H. Thomas 1961-4-4 9044 F San Mateo Jasper Ridge Biological Preserve, Stanford University; serpentine area near Westridge end of ridge Comment
  CAS-BOT-BC47931  Ceanothus Fred Hemphill 1973-4-15 675 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC48395  Ceanothus cuneatus var. cuneatus A. D. E. Elmer 1903-3-1 4578 San Mateo Portola Comment
  CAS-BOT-BC48396  Ceanothus cuneatus var. cuneatus Fred Hemphill 1973-4-22 789 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH3523  Ceanothus cuneatus var. cuneatus John H. Thomas 1970-4-29 15614 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  POM282999  Ceanothus oliganthus var. sorediatus Lyman Benson 1928-4-12 75 San Mateo Standord University. Santa Cruz. Watershed San Francisquito Creek. 46 Comment
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Oct 24 2014
  UC311387  Ceanothus oliganthus var. sorediatus A. D. E. Elmer May 1903 4479 San Mateo Portola Comment
  POM190252  Ceanothus papillosus D. D. Keck 1932-5-11 1774 San Mateo E side of Kings Mtn, on Kings Mtn road. 503 Comment
  CDA34105  Ceanothus papillosus var. papillosus D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .152 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  CAS-BOT-BC52280  Ceanothus thyrsiflorus Elizabeth McClintock 1965-3-28 s.n. San Mateo North Powerline Ridge 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
  RSA157755  Ceanothus thyrsiflorus I. L. Wiggins 1925-5-24 1744 San Mateo Along county road from Pescadero to Pebble Beach along rich swamp land just before coming to the artichoke lands of the American Produce Co. Comment
  CAS-BOT-BC274586  Centaurea calcitrapa L. R. Abrams; I. L. Wiggins 1930-11-13 174 San Mateo Hillside above Crystal Springs Lake Comment
  CAS-BOT-BC274589  Centaurea calcitrapa H. L. Mason 1921-10-1 s.n. San Mateo County Hospital, Belmont-Crystal Springs Rd Comment
  CAS-BOT-BC274593  Centaurea calcitrapa Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC274594  Centaurea calcitrapa Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  SEINET11860702  Centaurea calcitrapa E. A. Purer 1933-8-13 5423 San Mateo Santa Clara Valley, near Belmont Comment
  UC1925872  Centaurea calcitrapa Ethel Crum 1930-10-26 930 San Mateo San Francisco Peninsula Comment
  CAS-BOT-BC277126  Centaurea melitensis Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain Comment
  JROH604  Centaurea solstitialis John Hunter Thomas 1977-6-16 18761 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC272816  Centromadia parryi subsp. parryi David D. Keck 1931-10-5 1291 San Mateo Salada Beach Comment
  CAS-BOT-BC272819  Centromadia parryi subsp. parryi Lewis S. Rose 1931-8-28 s.n. San Mateo Salada Comment
  CAS-BOT-BC279331  Centromadia pungens subsp. pungens Ned Cahill 1974-10-8 377 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UC89050  Centromadia pungens subsp. pungens K. Brandegee 1901-9-1 San Mateo South San Francisco Comment
  CAS-BOT-BC279322  Centromadia pungens subsp. pungens L. S. Rose 1941-10-10 41463 San Mateo Along the Bayshore Boulevard, San Mateo 3 Comment
  JEPS20332  Centromadia pungens subsp. pungens Lewis S. Rose 1949-8-14 49166 San Mateo Bayshore Blvd. San Mateo Comment
  SJSU5744  Centromadia pungens subsp. pungens L. S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. & California Dr. 9 Comment
  CAS-BOT-BC384957  Cerastium arvense David D. Keck 1932-3-27 1410 San Mateo Stanford University; near the quarry on Matadero Creek Comment
  CAS-BOT-BC384960  Cerastium arvense Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mt. Reservoir Hill Comment
  UCD164003  Cerastium fontanum subsp. vulgare Peter Rubtzoff 1977-11-24 9141 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
  JROH5737  Cerastium glomeratum John Rawlings 2015-4-5 1657 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  JROH3616  Cercocarpus betuloides var. betuloides L. R. Abrams 1916-2-22 7242 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH3625  Cercocarpus betuloides var. betuloides D. E. Breedlove 1971-5-31 19374 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH3627  Cercocarpus betuloides var. betuloides John Hunter Thomas 1981-7-24 20730 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC263  Chamaemelum nobile J. Turner 1930-5-2 San Mateo Moss Beach. Comment
  RSA299223  Chamaesyce serpens J. T. Howell 1979-8-11 53359 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  JROH1822  Chenopodium californicum D. E. Breedlove 1971-5-31 19351 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  RSA187281  Chenopodium californicum John H. Thomas 1965-4-29 10604 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  POM177325  Chenopodium macrospermum var. farinosum L. R. Abrams, I. Wiggins 1930-11-13 178 San Mateo Margin of pond at DSalada Beach. Comment
  IRVC9051  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
  HSC15442  Chlorogalum pomeridianum var. divaricatum J. Wendell Howe 1930-5-27 152 San Mateo Pebble Beach, near ocean Comment
  JROH4647  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1974-6-27 17454 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing below Searsville Dam Comment
  JROH4648  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1974-6-27 17454 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing below Searsville Dam Comment
  JROH4650  Chlorogalum pomeridianum var. pomeridianum John Hunter Thomas 1981-5-19 20605 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM290670  Chlorogalum pomeridianum var. pomeridianum Lyman Benson 1930-5-20 2162 San Mateo La Honda Grade, above Lake Searsville, Santa Cruz Mountains 305 Comment
  UCR122972  Chrysanthemum coronarium George K. Helmkamp, E. A. Helmkamp 2001-6-2 6761 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  RSA54048  Chrysanthemum leucanthemum J. T. Howell 1949-7-4 25356 San Mateo Skyline Blvd., north of Millbrae Comment
  RSA51324  Chrysanthemum segetum Peter H. Raven 1950-4-30 1971 San Mateo along streets, Montara 24 Comment
  UC527532  Chrysolepis chrysophylla Carl B. Wolf 1931-8-21 San Mateo 0.5 way up e side Kings Mt. 365 Comment
  CAS-BOT-BC100937  Cirsium fontinale var. fontinale H. K. Sharsmith 1937-6-3 3951 San Mateo near road which connects Skyline Boulevard with road to Belmont. About 3 miles west of San Mateo, Crystal Springs Lake 152 Comment
  UCD130569  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo east shore of Upper Crystal Springs Lake, 0.7 mile south of road across lake. Comment
  SD5924  Cirsium occidentale var. occidentale Ulysses S. Grant IV 1925-6-18 San Mateo Hillsborough Comment
  RSA176529  Cirsium occidentale var. venustum John H. Thomas 1963-6-23 10169 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
  CAS-BOT-BC280135  Cirsium occidentale var. venustum John Thomas Howell 1939-6-16 14747 San Mateo Kings Mt. Comment
  CAS-BOT-BC280516  Cirsium quercetorum R. S. Ferris 1921-5-1 2184 San Mateo Arroyo de Los Frijoles Comment
  JEPS80473  Cirsium quercetorum L. R. Heckard 1981-5-25 5663 San Mateo on e side of the s end Lower Crystal Springs Reservoir (nw of junction (freeway interchange) of highway state <sic> 92 and U. S. 280) Comment
  UC615438  Cirsium quercetorum Beryl O. Schreiber 1932-5-29 314 San Mateo Crystal Springs Comment
  CAS-BOT-BC280513  Cirsium quercetorum Walter Knight; Irja Knight 1964-4-25 588 San Mateo San Bruno Mountain. Ridge near Nike base Comment
  CAS-BOT-BC280514  Cirsium quercetorum Javier Penalosa 1963-3-30 2703 San Mateo San Bruno Mountain. North of Randolph Ave. at Hillside Blvd. in SSF 91 Comment
  CAS-BOT-BC280525  Cirsium quercetorum V. F. Hesse 1964-5-26 3198 San Mateo Whitehouse Creek road 60 Comment
  JROH635  Cirsium vulgare John H. Thomas 1970-7-5 15670 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285859  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-BC285863  Cirsium vulgare John H. Thomas 1963-5-20 10107 A San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC285864  Cirsium vulgare John H. Thomas 1963-7-19 10198 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC285869  Cirsium vulgare George Oberlander 1949-8-20 335 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC285871  Cirsium vulgare Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountain. Crocker Avenue Comment
  SBBG14780  Cirsium vulgare P. H. Raven 1961-8-24 16585 San Mateo E side of Crystal Springs Lakes Comment
  UC2049888  Clarkia amoena subsp. amoena H. W. Johansen 1958-6-21 135 San Mateo Alpine road. Comment
  UC1536827  Clarkia purpurea subsp. quadrivulnera Gordon H. True Jr. 1936-6-14 504 San Mateo canyon s Salada Beach 304 Comment
  POM271755  Clarkia purpurea subsp. quadrivulnera Lyman Benson 1931-4-26 2758 San Mateo Behind Stanford University. Santa Cruz mtn range, Corte Madera Creek. 213 Comment
  JROH3009  Clarkia purpurea subsp. viminea John H. Thomas 1967-5-31 12935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC165141  Clarkia rubicunda Ira L. Wiggins 1938-7-9 8933 San Mateo Pigeon Point, about one half mile North of the Light House Comment
  CAS-BOT-BC165142  Clarkia rubicunda Alice Eastwood; John Thomas Howell 1938-6-26 6067 San Mateo Open ground avove La Honda Comment
  CHSC57020  Clarkia rubicunda Josephine Boyd 1988-5-5 San Mateo Ca 500 ft se of the twin-topped peak located ca 0.4 mi e of the jct. between Hwy. 280 and Edgewood Road in Redwood City. 222 Comment
  JROH3017  Clarkia rubicunda Raymond R. White 1974-6-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; area H Comment
  JROH3020  Clarkia rubicunda John H. Thomas 1974-6-30 17457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3026  Clarkia rubicunda John Hunter Thomas 1981-5-25 20646 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3031  Clarkia rubicunda John Hunter Thomas 1983-6-29 22710 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM271814  Clarkia rubicunda Lyman Benson 1930-5-12 2122 San Mateo Stanford University, Lake Searsville 152 Comment
  UCD169582  Clarkia rubicunda M. K. Wicksten 1971-8-10 224 San Mateo Moss Beach, bluff above Galway Bay. Comment
  RSA41288  Clarkia rubicunda Robert F. Hoover 1941-5-20 5108 San Mateo Redwood City hills Comment
  UC1279895  Clarkia rubicunda Peter H. Raven 1957-6-20 10954 San Mateo 2.6 mi n Redwood City turnoff (State Highway 5 (Skyline Boulevard)) Comment
  UC1279922  Clarkia rubicunda Peter H. Raven 1957-6-30 11011 San Mateo 1.8 mi s Sharp Park (on State Highway 1) Comment
  SEINET4149816  Clarkia speciosa E. Crawford 1982-9-25 s.n. San Mateo About 2 miles west of San Gregario on San Gregario Road 37 Comment
  JROH3334  Claytonia exigua subsp. exigua John H. Thomas 1975-4-5 17717 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM164075  Claytonia exigua subsp. exigua C. F. Baker 1903-4-6 1884 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  CAS-BOT-BC439289  Claytonia exigua subsp. exigua L. R. Abrams 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Road from Woodside to Crystal Springs near junction of Redwood City Road. Comment
  CAS-BOT-BC439992  Claytonia perfoliata subsp. mexicana John H. Thomas 1964-4-30 10363 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC439991  Claytonia perfoliata subsp. mexicana Peter H. Raven 1951-2-18 2729 San Mateo Brisbane Comment
  CAS-BOT-BC91480  Clematis lasiantha Josephine D. Randall 1907-7-4 305 San Mateo Santa Cruz Peninsula. Mill's Lake. Comment
  JROH3417  Clematis lasiantha John Hunter Thomas 1985-4-11 23519 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3418  Clematis lasiantha John Hunter Thomas 1986-4-10 23955 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD49791  Clematis lasiantha John H. Thomas 1959-4-5 7666 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto, western end 152 Comment
  JROH2873  Clinopodium douglasii John H. Thomas 1970-1-1 15499 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC499375  Clintonia andrewsiana A. Kellogg 1870-5-16 s.n. San Mateo San Gregoria Creek Comment
  CAS-BOT-BC499400  Clintonia andrewsiana W. R. Dudley 1895-6-4 s.n. San Mateo Pescadero Creek near Iverson's Comment
  SEINET12046246  Clintonia andrewsiana W. R. Dudley 1893-1 s.n. San Mateo Santa Cruz Penninsula, between Woodside and Summit Springs Comment
  RSA104877  Collinsia heterophylla Elizabeth Sprague 1956-5-28 s.n. San Mateo 2 miles east of Skyline Drive on La Honda Rd. Comment
  UC1736312  Collinsia multicolor Dean W. Taylor 1994-5-10 14276 San Mateo San Mateo Creek drainage; along Crystal Springs Road 0.3 mi East of junction of Tartan Trail 67 Comment
  JROH5707  Collinsia sparsiflora var. collina John Rawlings 2015-3-15 1349 B San Mateo Jasper Ridge Biological Preserve, Stanford University 110 Comment
  UC729639  Collomia heterophylla Carl B. Wolf 1929-5-25 3725 San Mateo 1/2 mi n La Honda Grade (on road to Woodside) 121 Comment
  JEPS71039  Collomia heterophylla P. B. Kennedy May, 1917 San Mateo Comment
  POM132599  Conioselinum gmelinii A. D. E. Elmer 1900-04 2289 San Mateo San Bruno Mountain 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
  JROH1849  Convolvulus arvensis John Hunter Thomas 1982-7-2 21056 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  JROH1854  Convolvulus arvensis John Hunter Thomas 1987-5-19 24298 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5547340  Convolvulus arvensis H. S. Gentry 1931-1 94 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  RSA0059777  Convolvulus subacaulis A. D. E. Elmer 1903-06 4826 San Mateo Crystal Springs Lake. Comment
  SEINET3407326 Image available Convolvulus subacaulis Lewis S. Rose 1932-5-13 32248 A San Mateo Open fields, woodside, San Mateo County, California. Comment
  CAS-BOT-BC286208  Conyza canadensis Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo San Bruno Mountain. Colma Canyon 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
  POM226854  Cordylanthus maritimus subsp. palustris L. R. Abrams 1914-7-16 s.n. San Mateo Cooley's Landing on San Francisco Bay Comment
  JROH4032  Cordylanthus pilosus subsp. pilosus Carol Zabel 1989-8-7 20 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 12, near Mapache Gate Comment
  JROH658  Coreopsis tinctoria Ruth Porter 1997-11-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing along San Francisquito Creek Comment
  SEINET11859850  Corethrogyne californica Unknown 1932-5-8 9109 San Mateo above Spring Valley Lakes Comment
  CAS-BOT-BC101477  Corethrogyne filaginifolia A. A. Heller 1907-5-28 8576 San Mateo Above Crystal Springs on the Half Moon Bay Road Comment
  CAS-BOT-BC101483  Corethrogyne filaginifolia George Oberlander 1950-4-3 863 San Mateo Grassland east of Lower Crystal Spr. Lake Comment
  CAS-BOT-BC101484  Corethrogyne filaginifolia John Thomas Howell 1962-6-6 37415 San Mateo Crystal Springs Lake Comment
  SJSU15948  Corethrogyne filaginifolia John Rawlings, Ken Hickman 2016-5-26 1824 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
  SEINET12136511  Cornus californica R. C. Croker 1929-1 69 San Mateo Searsville Lake Comment
  JROH1863  Cornus glabrata D. E. Breedlove 1971-5-31 19372 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  POM211526  Cornus glabrata C. B. Wolf 1931-8-20 2329 San Mateo 3 miles west of Mayfield on road to La Honda. 91 Comment
  RSA18367  Cornus occidentalis C. B. Wolf 1929-5-20 3721 San Mateo No. end of Searsville Lake. Comment
  JROH1872  Cornus sericea subsp. sericea John Hunter Thomas 1982-8-13 21140 San Mateo Jasper Ridge Biological Preserve, Stanford University; on causeway Comment
  JROH5906  Cornus sericea subsp. sericea M. Ray 1982-4-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; swamp trail about 1 km from Mapache Gate Comment
  CDA1902  Cortaderia jubata G. D. Barbe 1977-11-17 2350 San Mateo At entrance to Skyline Memorial Park, Hwy 92 east of Skyline Drive (Hwy 35). 0 Comment
  CDA18373  Cortaderia selloana G. D. Barbe 1978-9-26 2441 San Mateo Skylawn Memorial Park; drive from Hwy 92 into the park. 716 Comment
  JROH5668  Cortaderia selloana John Rawlings 2013-12-3 1242 San Mateo Jasper Ridge Biological Preserve, Stanford University; west side of the Corte Madera Creek main channel, visible from Trail 13. 109 Comment
  CAS-BOT-BC180373  Corylus cornuta subsp. californica Margaret A. Barry 1937-6-15 199 San Mateo Coal Mine Ridge Comment
  JROH1336  Corylus cornuta subsp. californica John Hunter Thomas 1981-2-14 20228 San Mateo Jasper Ridge Biological Preserve, Stanford University; redwood area below dam Comment
  CAS-BOT-BC180374  Corylus cornuta subsp. californica Walter Knight 1964-9-14 849 San Mateo On sandstone ridge between Peak Mt. and Highway 1 Comment
  POM270391  Corylus cornuta var. californica Lyman Benson 1931-2-28 2613 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  JEPS118180  Cotoneaster hodjingensis Dean W. Taylor 2004-6-2 19078 San Mateo San Bruno Mountain, southeast margin of the radio towers at the summit 365 Comment
  CAS-BOT-BC344964  Cotoneaster pannosus Peter Rubtzoff 1977-4-16 8951 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH3634  Cotoneaster pannosus John H. Thomas 1972-8-18 16154 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC287300  Cotula australis John H. Thomas 1965-4-29 10609 San Mateo San Bruno Mt in N part of county 396 Comment
  CHSC57065  Cotula coronopifolia Steven Triano 1988-5-24 202 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  UCR141420  Cotula coronopifolia June Latting 1975-6-8 s.n. San Mateo Central Coast, slough across from Pescadero dump (on Bean Hollow Rd.), west of Pescadero 9 Comment
  CAS-BOT-BC291449  Cotula coronopifolia W. R. Dudley 1897-5-1 s.n. San Mateo South San Francisco Comment
  JEPS49999  Crassula aquatica J. B. Davy c. 1919 5 e San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC291510  Crepis capillaris Josephine D. Randall 1907-6-29 66 San Mateo Portola Road, Santa Cruz Peninsula Comment
  JROH665  Crepis vesicaria subsp. taraxacifolia John H. Thomas 1962-6-10 9910 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge Comment
  CAS-BOT-BC190052  Crypsis schoenoides George Oberlander 1949-7-30 340 San Mateo San Francisco Watershed Reserve. Near south boundary. Comment
  JROH5724  Crypsis schoenoides John Rawlings 2015-9-22 1639 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  JROH1365  Cryptantha micromeres John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1379  Cryptantha microstachys John Hunter Thomas 1992-4-23 25164 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1384  Cryptantha torreyana var. pumila 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.) -- about 200 yds W. of Westridge border Comment
  RSA728109  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 422 San Mateo Pescadero County Park, on Butano Ridge, ca. 5 miles east of Dearborn Park Road 442 Comment
  CAS-BOT-BC80788  Cupressus macrocarpa Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Guadalupe Rd. Plants of San Bruno Mountain. 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
  UC1195196  Cynara cardunculus subsp. cardunculus John H. Thomas 1960-6-25 8800 San Mateo near Maple Street (between El Camino Real and railroad tracks, along or near a small creek running into Redwood Slough); Redwood City, Redwood Slough Comment
  JROH5005  Cynodon dactylon John Hunter Thomas 1987-5-26 24313 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5007  Cynodon dactylon John Hunter Thomas 1988-6-6 24512 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1390  Cynoglossum grande John H. Thomas 1958-2-15 6986 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB21183  Cynoglossum grande Simpson, C. 1967-3-21 San Mateo Along Skyline Blvd., 1 mile east of junction with Skywood Road 518 Comment
  CAS-BOT-BC217971  Cynosurus echinatus Elizabeth McClintock; Paul Reeberg 1989-6-18 s.n. San Mateo Saddle Area, San Bruno Mountains 213 Comment
  UCR121491  Cynosurus echinatus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4958 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
  CAS-BOT-BC114777  Cyperus acuminatus Ira L. Wiggins 1973-7-29 22046 San Mateo Bed of San Francisquito Creek, 50-200 m upstream from Pope Street Bridge. Comment
  POM290779  Cyperus eragrostis Lyman Benson 1937-7-8 8446 San Mateo Lake Searsville, Stanford University; Santa Cruz Mt. Range 122 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-BC114456  Cyperus eragrostis W. R. Dudley 1908-6-19 s.n. San Mateo Road from Tanforan to Jersey Dairy. Comment
  CAS-BOT-BC114459  Cyperus eragrostis Ira L. Wiggins 1980-8-29 22264 San Mateo Bed of San Francisquite Creek, ca 200 m upstream from Pope Street bridge, Menlo Park Comment
  UCD141113  Cyperus eragrostis Lewis S. Rose 1965-9-20 65107 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  UCD163784  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
  JROH4402  Cyperus erythrorhizos Toni Corelli 2008-10-1 347 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake. 103 Comment
  JROH20  Cystopteris fragilis Herbert Dengler 1961-4-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek Comment
  JROH5024  Dactylis glomerata John Hunter Thomas 1985-5-21 23665 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge Comment
  CAS-BOT-BC192243  Danthonia californica A. D. E. Elmer 1903-6-1 4707 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC192244  Danthonia californica A. D. E. Elmer 1903-6-1 4707 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC227627  Danthonia californica Peter Rubtzoff 1976-5-22 8547 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  JROH5035  Danthonia californica H. J. Dengler 1967-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Found by the vernal spring at west end of the serpentine meadow Comment
  JROH5037  Danthonia californica John H. Thomas 1968-5-3 14437 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3128861  Danthonia californica L. R. Abrams 1902-5-11 2451 San Mateo Capital Springs Comment
  UCD60466  Danthonia californica A. A. Beetle 1942-6-11 3595 San Mateo 2 miles north of South San Francisco. Comment
  JROH225  Daucus pusillus John H. Thomas 1970-4-28 15610 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI48631  Deinandra corymbosa Lewis S. Rose 1937-8-29 37644 San Mateo Moss Beach 15 Comment
  SD49785  Deinandra corymbosa J. H. Thomas 1959-8-16 8067 San Mateo About 2 miles north of Pigeon Point along the coast. 14 Comment
  CAS-BOT-BC299190  Deinandra corymbosa subsp. corymbosa Ira L. Wiggins 1949-7-2 12199 San Mateo Pescadero Beach Comment
  CAS-BOT-BC299197  Deinandra corymbosa subsp. corymbosa J. H. Thomas 1949-10-16 1152 San Mateo Just north of outlet of San Gregorio Creek Comment
  CAS-BOT-BC299202  Deinandra corymbosa subsp. corymbosa James I. McMurphy 1907-8-6 s.n. San Mateo Between Woodside and Crystal Springs Comment
  CAS-BOT-BC299215  Deinandra corymbosa subsp. corymbosa Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo Pig Ranch Ravine, San Bruno Mountain Comment
  CAS-BOT-BC299229  Deinandra corymbosa subsp. corymbosa David D. Keck 1927-6-10 396 San Mateo Radio Station, Montara Point Comment
  CAS-BOT-BC299201  Deinandra corymbosa subsp. corymbosa James I. McMurphy 1909-10-8 s.n. San Mateo Below Whitehouse Creek east of Franklin Point Comment
  CAS-BOT-BC299226  Deinandra corymbosa subsp. corymbosa Phillip C. Wheeler 1965-8-16 s.n. San Mateo Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC9214  Delphinium californicum Lewis Samuel Rose 1965-5-3 65058 San Mateo San Bruno Mountain, Colma Canyon 60 Comment
  UC511171  Delphinium californicum Lyman Benson 1930-5-12 2127 San Mateo Lake Searsville San Francisco Bay watershed, Santa Cruz Mt. Range, Stanford 152 Comment
  CAS-BOT-BC9219  Delphinium californicum Margaret A. Barry 1937-6-24 187 San Mateo North slope near Los Trancos Creek on Coal Mine Ridge Comment
  JROH3431  Delphinium californicum subsp. californicum John H. Thomas 1971-5-30 15974 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9235  Delphinium decorum Elizabeth McClintock 1965-4-25 s.n. San Mateo San Bruno Mountain, Owl's canyon Comment
  CAS-BOT-BC9229  Delphinium decorum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountains, between April Brook and Radio Road Comment
  UC9146  Delphinium decorum subsp. tracyi Geological Survey San Mateo San Bruno Comment
Read comments
Jun 4 2007
  CAS-BOT-BC10285  Delphinium hesperium Joseph J. Schweitzer 1951-6-5 57 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC10286  Delphinium hesperium Harry A. Dutton 1900-4-29 s.n. San Mateo Unspecified Comment
  CAS-BOT-BC9869  Delphinium nudicaule Oliver Norvell 1931-4-18 1417 San Mateo Kings Mountain road. Comment
  CHSC60193  Delphinium nudicaule Jan M. Karaz 1979-5-27 59 San Mateo 3 mi e of Hwy 280 intersection with Woodside Road, 1.2 mi e of Woodside on Mountain Home Road. 7 Comment
  RSA18089  Delphinium patens Carl B. Wolf 1929-4-26 3659 San Mateo Woodside. Comment
  JROH3453  Delphinium patens subsp. patens John H. Thomas 1975-4-5 17711 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC7893  Delphinium variegatum C. F. Baker 1902-4-6 458 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC7929  Delphinium variegatum Adolph Daniel Edward Elmer 1903-5-1 4796 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC7931  Delphinium variegatum Doris Kildale Gillespie 1930-4-21 9221 San Mateo Emerald Lake near Redwood City Comment
  CAS-BOT-BC7935  Delphinium variegatum Lewis S. Rose 1933-4-30 33125 San Mateo Redwood City Comment
  LA207571  Delphinium variegatum Lewis S. Rose; 1933-4-30 33125 San Mateo Redwood City Comment
  SEINET12099656  Delphinium variegatum M. T. Doutt 1931-1 s.n. San Mateo Skyline Blvd, W of Hillbrae Comment
  JROH3464  Delphinium variegatum subsp. variegatum John H. Thomas 1974-4-25 17206 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grasslands on top of ridge, Searsville end Comment
  UC203054  Delphinium variegatum subsp. variegatum A. D. E. Elmer May 1903 4796 San Mateo Crystal Springs Lake Comment
  UC9242  Delphinium variegatum subsp. variegatum Alice Eastwood Apr 1896 San Mateo Crystal Springs Comment
  UC157095  Deschampsia cespitosa subsp. holciformis Dr. E. B. Copeland 1903-6-10 3305 San Mateo Montara Point Comment
  UCD63756  Deschampsia cespitosa subsp. holciformis P. B. Kennedy 1921-6-3 San Mateo Millbrae Ranch. Comment
  JROH5060  Deschampsia elongata John H. Thomas 1973-6-15 16844 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5066  Deschampsia elongata John Hunter Thomas 1982-7-3 21061 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD63588  Deschampsia elongata A. A. Beetle 1942-6-11 3598 San Mateo Rt. 5, 15 miles south of San Bruno. Comment
  UCSB294  Deschampsia elongata Kraebel, C. 1932-7-24 San Mateo no data Comment
  RSA791559  Deschampsia holciformis Peter Rubtzoff 1976-6-13 8639 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC904  Dicentra chrysantha E. M. Zeile 1921-11-19 s.n. San Mateo Mt. Diablo Comment
  CAS-BOT-BC905  Dicentra chrysantha Mrs. Ernest Meiere 1916-6-1 s.n. San Mateo Mt. Diablo Comment
  UCR2938  Dicentra formosa Wm. Horn Jr. 1963-4-13 630413- 01 San Mateo Hillsborough, 2240 Redington Road 30 Comment
  CAS-BOT-BC500930  Dichelostemma capitatum Kim Marcus; David Schooly; Elizabeth McClintock 1975-4-13 s.n. San Mateo Above Hillside Blvd., South San Francisco Comment
  SEINET5548143  Dichelostemma capitatum H. S. Gentry 1931-1 5 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  JEPS127778  Dichelostemma capitatum subsp. capitatum Adam C. Schneider with C. Matt Guilliams 2013-3-9 28 San Mateo Comment
  JROH4656  Dichelostemma capitatum subsp. capitatum John H. Thomas 1967-5-10 12843 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5081  Digitaria sanguinalis John Hunter Thomas 1991-11-21 25103 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing of San Francisquito Creek. Comment
  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
  CDA19177  Diplotaxis tenuifolia D. Pendleton 2001-5-31 PDR 064471 San Mateo San Francisco Bay Peninsula; Burlingame. 0 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
  CAS-BOT-BC121865  Dirca occidentalis Quinn P. Sinnott; Kathy A. Sinnott 1975-3-1 611 San Mateo Along road about 1 miles N of Stone Dam. San Francisco Watershed at Crystal Springs. 243 Comment
  JROH4203  Dirca occidentalis John H. Thomas 1968-2-11 14144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4212  Dirca occidentalis John Hunter Thomas 1981-4-5 20282 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
  RSA169345  Dirca occidentalis L. S. Rose 1964-3-9 s.n. San Mateo North end of Crystal Springs Lake 122 Comment
  POM134412  Dirca occidentalis Stewart H. Burnham 1894-2-3 s.n. San Mateo Redwood Forest, outer coast range Comment
  SJSU647  Dirca occidentalis S. R. Piazza 1941-3-2 San Mateo near S side Searsville L Comment
  POM169497  Disporum hookeri var. hookeri C. F. Baker 1903-04 5052 San Mateo Crystal Springs Lake. Comment
  JROH3377  Dodecatheon clevelandii subsp. patulum Duncan M. Porter 1961-2-5 738 San Mateo Jasper Ridge Biological Preserve, Stanford University. In middle of corral at lower end of large meadow on crest of ridge Comment
  UC1001491  Dodecatheon clevelandii subsp. patulum H. J. Thompson 1948-2-23 1037 San Mateo sw Stanford University (e end of Jasper Ridge near Los Trancos Creek); sw of Stanford University, nr Los Trancos Creek Comment
  JROH3380  Dodecatheon hendersonii Le Roy Abrams 1901-3-3 1119 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3386  Dodecatheon hendersonii Herbert Dengler 1973-2-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In oaks towards E. serp. Top of knoll from gully below 2nd enclosure. Comment
  JEPS48589  Dodecatheon hendersonii James G. Daly 1934-1-1 208 San Mateo San Gregorio Watershed Santa Cruz Mts., San Gregorio Watershed (branch of La Honda Canyon, sw San Mateo County) Comment
  POM49825  Dodecatheon hendersonii subsp. cruciatum L. R. Abrams 1902-4-5 2311 San Mateo Searrvill Comment
  CAS-BOT-BC159537  Drymocallis glandulosa var. glandulosa W. R. Dudley 1894-5-30 s.n. San Mateo Near San Carlos - Santa Cruz Peninsula Comment
  JROH27  Dryopteris arguta John H. Thomas 1974-10-12 17623 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH37  Dryopteris arguta John Hunter Thomas 1980-11-12 20162 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC74801  Dryopteris arguta C. F. Baker 1902-1-15 320 San Mateo w side King's Mt Comment
  POM281638  Dryopteris arguta Lyman Benson 1928-12-15 829 San Mateo Searsville Lake Dam 122 Comment
  RSA693756  Dryopteris arguta Anonymous 1924-7-4 s.n. San Mateo Near St. Helena, Woods beyond WHite Sulphur Springs Comment
  UC429788  Dryopteris arguta L. R. Abrams 1901-12-29 2251 San Mateo Santa Cruz Mts. Comment
  POM281632  Dryopteris expansa Lyman Benson 1930-5-26 2139 San Mateo Stanford University, Lake Searsville 152 Comment
  UC144384  Dudleya caespitosa B 1903-6-30 3440 San Mateo Pilarcitos Comment
  SJSU16065  Dysphania ambrosioides Toni Corelli 2009-9-9 438 San Mateo Half Moon Bay State Beach, in low dunes, Half Moon Bay Comment
  JROH5095  Echinochloa crus-galli John Hunter Thomas 1988-10-17 24596 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing on delta in lake Comment
  CAS-BOT-BC197265  Echinochloa muricata var. microstachya George Oberlander 1949-9-25 394 San Mateo San Francisco Watershed Reserve. Upper Crystal Spr. Lake Comment
  UC1224611  Echium John H. Thomas 1964-6-28 10436 San Mateo ca. 1.1 mi. e. Half Moon Bay (on rd. to Crystal Springs Lake) Comment
  CDA5628  Echium pininana Gordon Leppig 2000-5-24 1384 San Mateo Highway 1 between Montara and Linda Mar. 0 Comment
Read comments
Sep 13 2011
  UCR242653  Ehrharta erecta A. C. Sanders 2012-11-11 40518 San Mateo SF Bay Area, Daly City near Colma, between Junipero Serra Blvd. and San Pedro Rd. on Washington St. 56 Comment
  POM144786  Eleocharis palustris A. D. E. Elmer 1903-07 4767 San Mateo San Pedro. Comment
  UCD61811  Elymus glaucus Beecher Crampton 1962-6-11 6497 San Mateo N. city limits of Pacfica; along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  CAS-BOT-BC203683  Elymus glaucus subsp. glaucus W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs Lake Comment
  CAS-BOT-BC203684  Elymus glaucus subsp. glaucus Ned Cahill 1974-5-18 301 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC203686  Elymus glaucus subsp. glaucus H. A. Borthwick 1920-5-24 179 San Mateo Santa Cruz Mountain Peninsula. La Honda Comment
  CAS-BOT-BC203689  Elymus glaucus subsp. glaucus George Oberlander 1950-5-6 931 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  JROH5102  Elymus glaucus subsp. glaucus John H. Thomas 1967-6-1 12951 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5113  Elymus glaucus subsp. glaucus John Rawlings 2010-5-20 0991 San Mateo Jasper Ridge Biological Preserve, Stanford University. On downhill side of Trail 12 in grassy opening west of intersection with Trail 10. 112 Comment
  UCSC007753  Elymus mollis subsp. mollis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC235211  Elymus multisetus George Oberlander 1950-7-15 1015 San Mateo San Francisco Watershed Reserve. North of San Andreas Lake Comment
  SJSU15415  Elymus pacificus Toni Corelli 2010-5-14 629 San Mateo Pescadero State Beach and Marsh Natural Preserve, west of Hwy. 1 5 Comment
  RSA790261  Elymus repens Peter Rubtzoff 1977-6-21 9055 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  CDA2063  Elytrigia repens R. G. Lauder 1958-10-2 1451 San Mateo San Mateo. 0 Comment
  SEINET6635579 Image available Epilobium brachycarpum Lewis S. Rose 1932-1 32600 San Mateo Salada Beach Comment
  HSC16554  Epilobium canum subsp. canum L. S. Rose 1965-9-4 65099 San Mateo Skyline Blvd. and Half Moon Bay Rd., Cahill Ridge 244 Comment
  JROH3053  Epilobium ciliatum subsp. ciliatum John Hunter Thomas 1978-7-2 19241 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  SDSU8797  Epilobium ciliatum subsp. watsonii D. F. Howe 1967-8-6 4368 San Mateo Swamp at Half Moon Bay Comment
  JROH3064  Epilobium densiflorum John Hunter Thomas 1979-9-9 19726 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  UC306525  Epilobium densiflorum A. D. E. Elmer June, 1903 4273 San Mateo Crystal Springs Lake Comment
  UC750564  Epilobium densiflorum Lewis S. Rose 1942-8-11 42228 San Mateo hills e Sharps Park 91 Comment
  RSA176752  Epilobium minutum John H. Thomas 1963-5-15 10092 San Mateo Jasper Ridge Biological Experimental Area. 5 miles SW of Palo Alto Comment
  CAS-BOT-BC166768  Equisetum arvense Peter Rubtzoff 1978-4-2 9153 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC384628  Equisetum hyemale subsp. affine R. D. Hennessey 1964-4-26 70 San Mateo Area where Pilarcitos Creek empties into the ocean Comment
  CAS-BOT-BC57615  Equisetum telmateia C. F. B. 1902-3-18 324 San Mateo West side King's Mountain Comment
  CAS-BOT-BC57616  Equisetum telmateia J. H. Thomas 1949-3-29 199 San Mateo King's Mt. Road Comment
  UC150823  Equisetum telmateia subsp. braunii C. F. Baker 1902-3-18 324 San Mateo w side King's Mt. Comment
  RSA131968  Equisetum telmateia var. braunii John H. Thomas 1950-3-5 1295 San Mateo About 5 miles from Pescadero toward La Honda along Hwy. 152 Comment
  RSA20414  Equisetum telmateia var. braunii I. L. Wiggins 1931-3-15 5103 San Mateo Between Skyline Blvd and La Honda. Comment
  JROH5140  Eragrostis pectinacea var. pectinacea John H. Thomas 1974-10-29 17646 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH5146  Eragrostis pectinacea var. pectinacea John Rawlings 2011-8-2 1079 San Mateo Jasper Ridge Biological Preserve, Stanford University. In the dry creek bed of San Francisquito Creek near the Dennis Martin site. 71 Comment
  CAS-BOT-BC299885  Erechtites glomeratus Robert F. Thorne; P. Everett 1963-6-9 32212 San Mateo Near TV tower on top of San Bruno Mountain 335 Comment
  CAS-BOT-BC291241  Erechtites minimus George Oberlander 1950-7-15 1084 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  CAS-BOT-BC291242  Erechtites minimus J. H. Thomas 1955-12-6 5515 San Mateo Growing on the upstream face of Pilarcitos Lake Dam Comment
  JROH3144  Eriastrum abramsii John Pelton 1958-6-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5711  Eriastrum abramsii John Rawlings 2015-5-10 1524 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14 near its terminus with Rd. E. 113 Comment
  JEPS89680  Erigeron glaucus Dean W. Taylor 1988-3-30 9466 San Mateo northern slope of se ridge of San Bruno Mountain (near the ridgecrest, right-of-way of eastern-most set of PG&E high-voltage powerlines crossing the mountain); Central Coast Region (CCo), San Bruno Mountain 176 Comment
  JROH695  Erigeron sumatrensis Toni Corelli 2011-8-30 371 b San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Dennis Martin site, above San Francisquito Creek 71 Comment
  JROH2717  Eriodictyon californicum John H. Thomas 1959-4-5 7667 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the western end of ridge Comment
  JROH2718  Eriodictyon californicum John H. Thomas 1970-7-5 15667 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3479294  Eriodictyon californicum L. S. Rose 1941-7-2 41288 San Mateo Kings Mountains, Kings Mountains 480 Comment
  JEPS111095  Eriogonum gracile Zoe Ellis Chandik 1992-9-19 s.n. San Mateo Hwy 280 right-of-way, west side bordering Edgewood County Nature Preserve/San Francisco watershed lands (triangle) Comment
  UC1537293  Eriogonum gracile Gordon H. True Jr. 1937-7-31 831 San Mateo roadside, Alpine Road Alpine Road 182 Comment
  POM165067  Eriogonum latifolium A. D. E. Elmer 1903-07 4557 San Mateo Half Moon Bay. Comment
  RSA18452  Eriogonum latifolium Carl B. Wolf 1927-6-29 555 San Mateo South of Pebble Beach near Pescadero. Comment
  SEINET7076096  Eriogonum latifolium 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
  UC1442465  Eriogonum latifolium James L. Reveal 1968-8-6 San Mateo San Gregorio Beach Comment
  UC566073  Eriogonum latifolium G. E. Sindel 1935-7-25 302 San Mateo mouth of Pescadero Creek Santa Cruz Quadrangle, Pescadero Creek 3 Comment
  SEINET5330414  Eriogonum latifolium E. Crawford 1982-9-25 s.n. San Mateo 12 Comment
  RSA187318  Eriogonum luteolum John H. Thomas 1964-7-3 10441 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  UCD100310  Eriogonum luteolum Lewis S. Rose 1964-9-9 64073 San Mateo Emerald Lake, west of Redwood City. 243 Comment
  JROH3224  Eriogonum luteolum var. luteolum A. G. Vestal 1937-7-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Southeast side of ridge not far from Stanford property line. Comment
  UC662513  Eriogonum luteolum var. luteolum L. S. Rose 1941-9-2 41432 San Mateo w Redwood City; Emerald Lake 90 Comment
  JROH3238  Eriogonum luteolum var. luteolum Carol Zabel 1989-8-27 33 San Mateo Jasper Ridge Biological Preserve, Stanford University. Herb's serpentine loop, top of Trail 5. Comment
  JROH5849  Eriogonum luteolum var. luteolum Bill Kirsher 1990-7-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of Road F. Comment
  UC614886  Eriogonum nudum var. auriculatum Beryl O. Schreiber 1932-5-29 306 San Mateo Crystale Springs Comment
  SD12580  Eriogonum nudum var. auriculatum Edith A. Purer 1933-8-4 5401 San Mateo Along the Bayshore Highway, near Redwood City Comment
  SEINET11938130  Eriogonum nudum var. auriculatum Unknown 1932-1 9110 San Mateo Btw road and Sring Valley Lakes Comment
  UCD100531  Eriogonum nudum var. auriculatum Marilyn Ivey 1973-5-30 67 San Mateo Farm Hill Blvd., 2 miles east of Canada College. Comment
  CAS-BOT-BC304067  Eriophyllum confertiflorum Walter & Irja Knight 1963-7-14 297 San Mateo Quarry 3, San Bruno Mt Comment
  CAS-BOT-BC304078  Eriophyllum confertiflorum Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC304081  Eriophyllum confertiflorum Robert Robertson 1954-5-1 109 San Mateo 2 miles E of Pescadero 30 Comment
  CAS-BOT-BC304082  Eriophyllum confertiflorum Lewis S. Rose 1933-5-17 33176 San Mateo Redwood City Comment
  RSA463086  Eriophyllum lanatum var. arachnoideum Lyman Benson 1930-5-3 2113 San Mateo Above Woodside, Mt. Range: Santa Cruz. 366 Comment
  POM54247  Eriophyllum latilobum A. D. E. Elmer 1903-06 4397 San Mateo San Mateo Comment
  RSA134232  Eriophyllum staechadifolium John H. Thomas 1949-10-16 1151 San Mateo Along sandstone bluffs, just north of outlet of San Gregorio Creek Comment
  UCR240615  Eriophyllum staechadifolium T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3531 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  CAS-BOT-BC301965  Eriophyllum staechadifolium Carl B. Wolf 1930-11-5 1808 San Mateo 2 miles south of San Gregorio 60 Comment
  RSA10281  Eriophyllum staechadifolium H. A. Barker 1927-5-14 653 San Mateo North of Half Moon Bay. Comment
  RSA116763  Eriophyllum staechadifolium L. R. Abrams 1907-08 s.n. San Mateo Between Pescadero and Half Moon Bay Comment
  JROH2604  Erodium cicutarium John H. Thomas 1974-4-4 17082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM259929  Eryngium armatum I. L. Wiggins 1939-8-2 9296 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC54513  Erysimum capitatum Reed Clark Rollins 1941-3-22 2951 San Mateo San Bruno Hills, 2 miles southeast of Daly City. Comment
  CAS-BOT-BC54512  Erysimum capitatum George Oberlander 1950-3-11 437 San Mateo San Francisco Watershed Reserve. Sweeney Ridge. Comment
  CAS-BOT-BC124226  Erysimum franciscanum George Bowyer Rossbach 1938-5-18 837 San Mateo E side of Crystal Springs Lake 106 Comment
  CAS-BOT-BC54820  Erysimum franciscanum Javier Penalosa 1963-3-30 2735 San Mateo San Bruno Mountains. North of Randolph Drive at Hillside Boulevard. In South San Francisco. 289 Comment
  CAS-BOT-BC54828  Erysimum franciscanum W. R. Dudley 1894-3-27 s.n. San Mateo Santa Cruz Peninsula. On ledges below Crystal Springs Dam. Comment
  CAS-BOT-BC54829  Erysimum franciscanum W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. San Mateo. Comment
  CAS-BOT-BC54834  Erysimum franciscanum G. B. Rossbach 1955-3-12 568 San Mateo Just inland and southeast of Devil's Slide, west edge of Montara Mountains. 121 Comment
  CAS-BOT-BC54842  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 806 San Mateo Crests and steep upper slopes of the San Bruno Hills. 365 Comment
  CAS-BOT-BC54843  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 806 San Mateo Crests and steep upper slopes of the San Bruno Hills. 365 Comment
  CAS-BOT-BC54856  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-4-2 908 a fl. 908b fr. San Mateo Just above and west of south end of San Andreas Lake. 213 Comment
  CAS-BOT-BC54877  Erysimum franciscanum Peter H. Raven 1950-2-25 1374 San Mateo San Bruno Mountains. Between Brisbane and N.B.C. Television Station. 243 Comment
  CAS-BOT-BC54881  Erysimum franciscanum Roxana S. Ferris 1921-4-7 2147 San Mateo Santa Cruz Mountains. San Bruno Mountain. 182 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
  UC1034943  Erysimum franciscanum G. B. and R. P. Rossbach 1938-4-3 807 San Mateo moist ravine in upper slope of hills San Bruno Hills Comment
  CAS-BOT-BC54831  Erysimum franciscanum W. R. Dudley 1906-5-13 s.n. San Mateo Santa Cruz Peninsula. Hills southwest of San Mateo. Comment
  PGM187  Erysimum franciscanum Vern Yadon 1968-4-5 San Mateo Pigeon Pt Lighthouse Highway 1, Pigeon Pt Lighthouse just S of Comment
  RSA15249  Erysimum franciscanum C. B. Wolf 1927-2-19 s.n. San Mateo 1 mile from where Skyline Blvd. crosses the road to Halfmoon Bay Comment
  CAS-BOT-BC403530  Eschscholzia californica Alice Eastwood 1937-7-25 18893 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC403537  Eschscholzia californica A. D. E. Elmer 1903-6-1 4680 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC403553  Eschscholzia californica Javier Penalosa 1963-3-30 2706 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  CAS-BOT-BC403559  Eschscholzia californica Anne Constant 1955-5-28 201 San Mateo Pescadero Beach 7 Comment
  CAS-BOT-BC403554  Eschscholzia californica W. S. Chandler 1901-3-30 s.n. San Mateo San Mateo Comment
  JROH5930  Eschscholzia californica L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Close to the Siersville Lab on the west side of the lake Comment
  RSA116765  Euonymus occidentalis H. L. Mason 1921-1 s.n. San Mateo San Francisquito Creek near Searsville Lake. Comment
  JROH1797  Euonymus occidentalis var. occidentalis E. I. Applegate 1895-5-11 67 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Dam Comment
  JROH1798  Euonymus occidentalis var. occidentalis Elmer I. Applegate 1895-5-11 67 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  RSA130685  Euphorbia crenulata C. F. (illegible) 1894-3-28 s.n. San Mateo Lobitas road. Comment
  RSA133936  Euphorbia helioscopia John H. Thomas 1959-7-8 8014 San Mateo About 1/4 miles west of center of Pescadero on road toward the coast. Comment
  UCD142398  Euphorbia helioscopia J. H. Thomas 1959-7-8 8014 San Mateo About 1/4 mile west of center of Pescadero on road toward the coast. Comment
  JROH1965  Euphorbia lathyris Carol Zabel and Ruth Porter 1999-5-17 41 a San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of trail 12 Comment
  JROH1967  Euphorbia oblongata John Rawlings 2012-10-15 1118 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed near Dennis Martin site 71 Comment
  JROH1968  Euphorbia oblongata Ann Lambrecht 2012-12-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; beside footbridge on Trail 12 Comment
  JROH1979  Euphorbia spathulata John Hunter Thomas 1981-4-23 20471 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1971  Euphorbia spathulata Karen Weissman 1970-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Area H Comment
  UC1557839  Euthamia occidentalis J. Semple and S. Heard 1986-8-23 8596 San Mateo 7.5 km N of Santa Cruz Co line on CA-1 Comment
  RSA507774  Euthamia occidentalis J. C. Semple, S. Heard 1986-8-23 8596 San Mateo 7.5 km N of Santa Cruz County line on CA-1 Comment
  POM204950  Festuca C. F. Baker 1903-4-8 1920 San Mateo San Andreas Lake Comment
  JROH5158  Festuca arundinacea John Hunter Thomas 1985-5-21 23664 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  SJSU16063  Festuca arundinacea Toni Corelli 2009-9-22 446 San Mateo Ano Nuevo State Park, adjacent to Gazos Creek parking lot Comment
  SEINET10887997  Festuca arundinacea P. Rubtzoff 1976-6-13 Rubtzoff 8633 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. 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-BC278477  Festuca idahoensis L. R. A. 1902-5-11 2450 San Mateo Crystal Springs Comment
  SJSU11266  Festuca idahoensis S. H. Casey 1980-6-13 1158 San Mateo Los Trancos Woods 609 Comment
  JROH5481  Festuca microstachys John H. Thomas 1963-5-15 10093 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5498  Festuca myuros John H. Thomas 1974-4-19 17166 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5822  Festuca myuros John Rawlings 2016-3-8 1681 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14 uphill from dam spillway 108 Comment
  JROH5495  Festuca myuros John H. Thomas 1967-5-12 12867 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5287  Festuca perennis John Hunter Thomas 1986-5-1 23992 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low flow crossing. Comment
  JROH5288  Festuca perennis John Hunter Thomas 1986-5-6 24020 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5291  Festuca perennis John Hunter Thomas 1988-5-3 24439 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC429787  Festuca roemeri LeRoy Abrams 1902-5-11 2450 San Mateo Crystal Springs Comment
  CAS-BOT-BC279050  Festuca rubra Elizabeth McClintock; Paul Reeberg 1989-5-19 s.n. San Mateo San Bruno Mountains. Upper slopes of Firth Canyon, above Brisbane 182 Comment
  RSA582075  Festuca rubra D. D. Keck 1932-5-6 1478 San Mateo Above Millbrae Highlands Comment
  JROH2975  Ficus carica John Hunter Thomas 1979-9-9 19710 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM139629  Fragaria chiloensis A. D. E. Elmer 1903-04 4799 San Mateo San Pedro. Comment
  SEINET3892512  Fragaria chiloensis R. L. Johnson 2012-4-6 12 -004 San Mateo Half Moon Bay, Redondo Beach Rd. overlooking Pacific Ocean.; 0 25 Comment
  UC466552  Fragaria chiloensis R. L. Pendleton 1907-4-20 629 San Mateo Colma Comment
  CAS-BOT-BC437030  Fragaria chiloensis W. R. Dudley 1894-5-24 s.n. San Mateo Near Pebble Beach, Pescadero, Santa Cruz Peninsula Comment
  UC917281  Fragaria vesca W. A. Harvey and J. M. Tucker 1948-6-29 1705 San Mateo just w road to Portola State Park jct with Highway 5 (Skyline Blvd) (beside road to Portola State Park) Comment
  CAS-BOT-BC457517  Fragaria vesca subsp. californica W. R. Dudley 1898-1-1 s.n. San Mateo Goat Hill, Little Butano, Santa Cruz Pennisula Comment
  JEPS127868  Frangula californica subsp. californica Adam C. Schneider 2013-5-17 162 San Mateo Crystal Springs Reservoir Comment
  JROH3548  Frangula californica subsp. californica John Hunter Thomas 1981-2-14 20211 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG28507  Frangula californica subsp. californica C. B. Wolf 1927-11-27 San Mateo just S of Pescadero Comment
  CAS-BOT-BC211607  Frankenia salina Phillip C. Wheeler 1965-8-14 s.n. San Mateo Brisbane Lagoon, San Bruno Mountain Comment
  SEINET3151930  Frankenia salina L. S. Rose 1938-8-18 38230 San Mateo Brisbane 2 Comment
  CAS-BOT-BC223551  Fraxinus latifolia W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. Near San Mateo Creek Comment
  CAS-BOT-BC223552  Fraxinus latifolia George Oberlander 1949-8-20 367 San Mateo San Francisco Watershed Reserve. Below San Andreas Dam Comment
  UC3641  Fritillaria affinis J. Burtt Davy 1895-4-20 1056 San Mateo Lake Pilarcitos Comment
  SEINET5550647  Fritillaria affinis H. S. Gentry 1931-1 2 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  JEPS61962  Fritillaria biflora var. ineziana Inez Smith 1914-3-12 San Mateo San Mateo Comment
  CAS-BOT-BC130383  Fritillaria liliacea Lewis S. Rose 1933-4-2 33049 San Mateo Redwood City Comment
  CAS-BOT-BC130384  Fritillaria liliacea Marion Gallagher 1978-3-3 s.n. San Mateo At Farm Hill School Site, above Redwood City and opposite [Canada] Canada College, just off 280 at Farm Hill off ramp Comment
  CAS-BOT-BC130386  Fritillaria liliacea John H. Thomas 1969-4-30 15031 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JEPS61919  Fritillaria liliacea Inez Smith 1915-3-15 San Mateo Hillsboro Comment
  LA22137  Fritillaria liliacea H. E. Parks; S. T. Parks 1930-3-10 400 San Mateo Spring Valley Lakes 152 Comment
  UC843895  Fritillaria liliacea Lewis S. Rose 1941-3-7 41008 San Mateo w of Redwood City (Emerald Lake); Emerald Lake 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
  CDA34013  Fumaria capreolata D. G. Kelch 2011-3-13 11 .058 San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  UCD78148  Fumaria capreolata Robert E. Preston 2008-4-1 2600 San Mateo Lower Crystal Springs Reservoir, at jct Hwy 92 and Hwy 35 92 Comment
  CDA42126  Galium aparine L. S. Rose 1932-5-13 32240 San Mateo San Andreas Lake. 0 Comment
  UC28203  Galium californicum subsp. californicum J. Burtt Davy Jun 21 1893-Jun 23 1893 1144 San Mateo Pilarcitos Lake and Canyon Comment
  CDA6674  Galium divaricatum J. T. Howell 1978-7-18 53188 San Mateo McClellan residence, 1356 Bernal Avenue, Burlingame. 0 Comment
  JROH3787  Galium murale John H. Thomas 1961-4-8 9074 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3791  Galium murale John H. Thomas 1967-6-1 12967 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3799  Galium murale John H. Thomas 1976-4-30 18103 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  JROH5738  Galium murale John Rawlings 2015-4-5 1658 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  JROH3788  Galium murale John H. Thomas 1961-4-29 9177 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA33978  Galium porrigens D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .148 San Mateo Santa Cruz Mountains.; Skyline Blvd, ~ 5 miles W of Los Altos. Comment
  UC496159  Galium porrigens var. porrigens W. F. Wight 1900-1-28 San Mateo trail to Bukhorn Ranch above Prestons (old La Honda Rd.) Comment
  CDA28811  Galium triflorum D. G. Kelch 2009-6-9 9 .402 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  UC28243  Galium triflorum Kellogg 1870-1 San Mateo Comment
  JROH806  Gamochaeta ustulata John Hunter Thomas 1992-5-5 25208 San Mateo Jasper Ridge Biological Preserve, Stanford University; near picnic area and vicinity Comment
  RSA218010  Gamochaeta ustulata Phillip Wheeler 1965-5-12 s.n. San Mateo Pig Ranch Ravine; San Bruno Mountains. Comment
  POM132460  Garrya elliptica A. D. E. Elmer 1903-02 4469 San Mateo Portola. Comment
  SEINET12137148  Garrya elliptica Unknown 1930-1 7312 San Mateo on road to Los Francos Woods Comment
  CAS-BOT-BC278663  Gastridium phleoides George Oberlander 1949-6-25 263 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC278664  Gastridium phleoides C. F. Leitholt 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devils Canon [Canyon], Mill Cr. Comment
  JROH5192  Gastridium phleoides John Hunter Thomas 1983-5-31 22316 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near oval used for bicycle riding. Comment
  JROH5854  Gastridium phleoides John Rawlings 2004-5-15 0905 San Mateo Jasper Ridge Biological Preserve, Stanford University; mowed fire-truck turn-around south side of Rd F, west of Escobar Gate and east of Tr. 15 165 Comment
  POM290958  Gastridium phleoides Lyman Benson 1937-7-8 8444 San Mateo Lake Searsville, Stanford, Santa Cruz, San Francisco Bay 121 Comment
  UCD66567  Gastridium phleoides A. A. Beetle 1942-6-11 3599 San Mateo Rt. 5, 15 miles south of San Bruno. Comment
  JROH2009  Genista monspessulana John Hunter Thomas 1978-4-22 19107 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2015  Genista monspessulana John Hunter Thomas 1985-5-7 23640 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge 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
  JROH2625  Geranium molle John H. Thomas 1967-3-26 12422 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2628  Geranium molle John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2627  Geranium molle John H. Thomas 1975-4-18 17782 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC774606  Gilia achilleifolia subsp. achilleifolia Carl B. Wolf 1938-4-24 9401 San Mateo 1/4 mi sw San Francisquito Creek Bridge (Stanford University); , sw of San Francisquito Creek Bridge 60 Comment
  JROH3159  Gilia achilleifolia subsp. multicaulis John Hunter Thomas 1987-4-30 24221 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  POM282276  Gilia achilleifolia subsp. multicaulis Lyman Benson 1935-5-5 6532 San Mateo Lake Searsville. 152 Comment
  CAS-BOT-BC123797  Gilia mellita Edward Lee Greene 1886-6-23 s.n. San Mateo Belmont Comment
  JROH2026  Glycyrrhiza lepidota John Hunter Thomas 1983-7-7 22819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR254881  Gnaphalium ramosissimum Peter Rubtzoff 1978-9-16 9272 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  JEPS121472  Grindelia hirsutula Adam C. Schneider with Alison Colwell 2013-6-23 291 San Mateo Pacifica State Beach, west of CA State Highway 1. Comment
  POM190261  Grindelia hirsutula D. D. Keck 1932-5-25 1783 San Mateo Hills two miles W of Belmont Comment
  JROH814  Grindelia hirsutula John H. Thomas 1961-6-14 9538 San Mateo Jasper Ridge Biological Preserve, Stanford University; in "parking area" at Searsville end of Lake Comment
  JROH822  Grindelia hirsutula John Hunter Thomas 1981-5-25 20630 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH827  Grindelia hirsutula John Hunter Thomas 1988-5-3 24442 San Mateo Jasper Ridge Biological Preserve, Stanford University; powerline draw Comment
  SEINET5709422 Image available Grindelia hirsutula var. hirsutula Delzie Demaree 1933-1 10424 San Mateo Spring Valley road. Comment
  OBI49183  Grindelia stricta var. angustifolia Lewis S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  RSA0116908  Grindelia stricta var. angustifolia Lyman Benson 1945-7-29 11839 San Mateo Bayshore Highway at San Carlos. 3 Comment
  POM288784  Grindelia stricta var. platyphylla Lyman Benson 1930-8-15 2564 San Mateo San Gregorio 5 Comment
  POM308523  Grindelia stricta var. platyphylla Henry J. Ramsey, Henry J. Ramsey 1939-10-7 3172 San Mateo Coast, Highway 1. Comment
  RSA18368  Grindelia stricta var. platyphylla C. B. Wolf 1927-6-29 540 San Mateo South of Pebble Beach near Pescadero Comment
  SD88348  Grindelia stricta var. platyphylla Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  JEPS54104  Guillenia lasiophylla R. J. Smith 1898-5 San Mateo Los Buellis Hills Mt. Hamilton Range Comment
  RSA11899  Guillenia lasiophylla Elmer I. Applegate 1895-5-11 33 San Mateo Stock Farm. Stanford University. Comment
  RSA121240  Hainardia cylindrica A. Hormay 1932-5-29 17 San Mateo San Bruno. Comment
  UC1146645  Hainardia cylindrica Freed W. Hoffman 1941-6-1 2238 San Mateo South Coast Ranges, along Bayshore Highway Bayshore Highway; South Coast Ranges, Bayshore Highway Comment
  CAS-BOT-BC309531  Helenium puberulum John H. Thomas 1976-10-7 18392 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south of Pescadero 30 Comment
  JROH830  Helenium puberulum John H. Thomas 1961-6-14 9542 San Mateo Jasper Ridge Biological Preserve, Stanford University; along stream below dam Comment
  JROH833  Helenium puberulum John H. Thomas 1970-7-5 15658 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH860  Helianthella californica var. californica John Hunter Thomas 1988-5-3 24444 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  HSC23781  Helianthemum scoparium Mary Katherine Wicksten 1971-6-17 63 San Mateo Huddart Park, by Werder Shelter Comment
  SD39698  Heliotropium curassavicum Edith A. Purer 1932-7-18 4010 San Mateo Half Moon Bay Comment
  JROH1396  Heliotropium curassavicum var. oculatum John H. Thomas 1962-7-15 9925 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  CAS-BOT-BC314911  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-10-8 374 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC314912  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-7-14 360 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC314941  Hemizonia congesta subsp. luzulifolia David D. Keck 1932-5-6 1492 San Mateo East side of Crystal Springs Lake 60 Comment
  CAS-BOT-BC314942  Hemizonia congesta subsp. luzulifolia H. M. Hall 1915-8-28 10113 San Mateo East side of Crystal Springs Lake 121 Comment
  RSA184823  Hemizonia corymbosa subsp. corymbosa L. S. Rose 1965-9-4 65100 San Mateo Skyline Blvd and half Moon Bay Road, Cahill Ridge 244 Comment
  NY179264  Hemizonia grandiflora L. Abrams 1902-5-11 2446 San Mateo Crystal Springs Comment
  POM55221  Hemizonia luzulifolia A. D. E. Elmer 1903-05 4805 San Mateo Crystal Springs Lake Comment
  RSA184852  Hemizonia luzulifolia L. S. Rose 1965-8-27 65094 San Mateo Emerald Lake, West of Redwood City 183 Comment
  POM360314  Hemizonia luzulifolia D. D. Keck 1932-5-6 1492 San Mateo East side of Crystal Springs Lake. 61 Comment
  RSA132469  Hemizonia luzulifolia subsp. rudis John H. Thomas 1959-8-22 8078 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  RSA212183  Hemizonia luzulifolia subsp. rudis L. S. Rose 1970-7-26 70078 San Mateo Hillsborough, Black Mountain, Skyline Blvd. 122 Comment
  UC1084378  Heracleum lanatum G. Thomas Robbins 1937-4-11 75 San Mateo along Skyline Blvd. s. of San Francisco Comment
  UCSB17224  Hesperevax sparsiflora Schulte, John 1963-4-14 San Mateo Top of Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC310243  Hesperevax sparsiflora var. sparsiflora Margaret A. Barry 1937-5-15 126 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC310249  Hesperevax sparsiflora var. sparsiflora L. R. A. 1902-5-4 2417 San Mateo Woodside Comment
  JROH890  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-4-23 20484 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH893  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-5-25 20643 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH899  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1991-5-2 25008 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC310244  Hesperevax sparsiflora var. sparsiflora Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC310246  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1974-4-11 17126 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  SJSU7855  Hesperolinon congestum J. R. Verbarg 1955-5-14 San Mateo Redwood City Hills back of Redwood City Comment
  JROH2925  Hesperolinon micranthum John H. Thomas 1967-5-31 12943 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2927  Hesperolinon micranthum John H. Thomas 1968-5-22 14460 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2928  Hesperolinon micranthum John H. Thomas 1969-6-4 15107 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1212270  Hesperolinon micranthum Helen K. Sharsmith 1947-6-3 3975 San Mateo above Redwood City; Outer South Coast Ranges 152 Comment
  JROH3675  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge Biological Preserve, Stanford University. North central portion of ridge Comment
  JROH3677  Heteromeles arbutifolia John H. Thomas 1965-12-19 11459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3678  Heteromeles arbutifolia John H. Thomas 1973-6-10 16814 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3680  Heteromeles arbutifolia John H. Thomas 1974-5-29 17406 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD37681  Heteromeles arbutifolia Edith A. Purer 1932-7-18 4002 San Mateo King's Mountain Comment
  UC860403  Heteromeles arbutifolia Lewis S. Rose 1937-10-31 37726 San Mateo hills w Tanforan 91 Comment
  CAS-BOT-BC311097  Heterotheca oregona var. scaberrima W. R. Dudley 1896-10-11 s.n. San Mateo Santa Cruz Mountain Peninsula. On railroad track between Menlo Park and Palo Alto Comment
  JEPS125948  Heterotheca sessiliflora subsp. bolanderi D. W. Taylor 2000-7-20 17537 San Mateo Montara Mountain, on Montara State Beach, along dirt road 1 mile W from North Peak. Comment
  OBI16088  Heterotheca sessiliflora subsp. bolanderi Lewis S. Rose 1966-8-20 66087 San Mateo San Bruno Mtn, summit 366 Comment
  CAS-BOT-BC310765  Heterotheca sessiliflora subsp. echioides J. H. Thomas 1954-5-28 4236 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  JROH908  Heterotheca sessiliflora subsp. echioides Carol Zabel 1989-8-27 34 San Mateo Jasper Ridge Biological Preserve, Stanford University; lowest trail next to lake, downhill, east of Sun Field Station Comment
  RSA0066088  Heuchera pilosissima John H. Thomas 1961-5-7 9283 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  CAS-BOT-BC424430  Heuchera pilosissima H. L. Mason 1921-6-2 s.n. San Mateo Hill near Pebble Beach, Pescadero Comment
  CAS-BOT-BC319633  Hieracium albiflorum George Oberlander 1950-5-6 997 San Mateo Sawyer Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC319634  Hieracium albiflorum David D. Keck 1934-7-7 2927 San Mateo Kings Mountain 548 Comment
  OBI49218  Hieracium albiflorum Lewis S. Rose 1939-6-16 39279 San Mateo Kings Mtn 671 Comment
  SEINET4584971  Hierochloe occidentalis R. Oliver 1976-4-18 s.n. San Mateo San Mateo Memorial Park Comment
  CAS-BOT-BC55440  Hirschfeldia incana Phillip Wheeler 1965-6-7 s.n. San Mateo San Bruno Mountains. Bottom Owls Canyon. Comment
  JROH5217  Holcus lanatus John Hunter Thomas 1989-5-30 24756 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC24044  Holodiscus discolor Mary Katherine Wicksten 1971-6-17 11 San Mateo Huddart Park. 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-BC150051  Holodiscus discolor var. discolor George Oberlander 1949-5-21 183 San Mateo Sawyer Ridge Comment
  CAS-BOT-BC150061  Holodiscus discolor var. discolor Phillip C. Wheeler 1965-4-27 s.n. San Mateo Live Oak Canyon Comment
  SEINET10966310  Hookera terrestris Charles F. Baker 1902-4-6 Baker 462 San Mateo Crystal Springs Lake, California. Locally common on grassy slopes. Comment
  CAS-BOT-BC284685  Hordeum brachyantherum subsp. brachyantherum 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
  SJSU15413  Hordeum brachyantherum subsp. brachyantherum Toni Corelli 2010-5-21 671 San Mateo Pescadero State Beach and Marsh Natural Preserve. North Pond Trail 9 Comment
  UC163001  Hordeum brachyantherum subsp. brachyantherum Dr. E. B. Copeland 1903-6-10 3304 San Mateo Montara Point Comment
  JROH5220  Hordeum brachyantherum subsp. californicum John H. Thomas 1968-5-3 14439 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285146  Hordeum marinum subsp. gussoneanum Elizabeth McClintock; Paul Reeberg 1989-4-10 s.n. San Mateo San Bruno Mountains. PG&E Marsh 7 Comment
  CAS-BOT-BC285149  Hordeum marinum subsp. gussoneanum P. R. Hichborn 1920-5-18 236 San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  JROH5239  Hordeum marinum subsp. gussoneanum John H. Thomas 1971-5-30 15953 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC289457  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10152 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  JROH5671  Hordeum murinum subsp. leporinum John Rawlings 2013-4-10 1129 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Where the brick path ends at the visitor parking lot of the Sun Field Station. 119 Comment
  RSA138172  Hordeum vulgare W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Comment
  CAS-BOT-BC536153  Horkelia californica Lewis S. Rose 1966-8-20 66086 San Mateo Head of Colma Canyon, San Bruno Mountain 205 Comment
  CAS-BOT-BC536154  Horkelia californica David D. Keck 1939-7-1 5008 San Mateo 3 miles south of Pescadero, 1 mile from the ocean 60 Comment
  RSA184912  Horkelia californica L. S. Rose 1966-8-20 66086 San Mateo San Bruno Mtn, Head of Colma Canyon. 206 Comment
  UC204150  Horkelia cuneata subsp. sericea A. D. E. Elmer April, 1903 5036 San Mateo near Colma (cemeteries) Comment
  SEINET6755152  Horkelia cuneata subsp. sericea A. A. Heller 1906-6-8 8374 San Mateo Near Ocean View, San Francisco. ( on the Lake Merced side of the Ocean Shore tracks) Comment
  CAS-BOT-BC143925  Horkelia cuneata var. sericea W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  LA47914  Hosackia gracilis C. F. Baker; 1902-5-1 689 San Mateo Crystal Springs Lake Comment
  SD39812  Hosackia gracilis Marie Cummings 1933-5-17 3674 San Mateo Moss Beach Comment
  RSA0064471  Hydrocotyle moschata A. C. Sanders 2014-8-3 41241 San Mateo South San Francisco, Utah Ave. near Harbor Way, north of S.F. Intl. Airport. 4 Comment
  JEPS117923  Hypericum canariense John Dittes, Josephine Guardino 2007-6-30 1457 San Mateo undesignated section of Punta Del Ano Nuevo Land Grant east side of Highway 1 on slope south and east of (Central Coast; Ano Nuevo State Reserve, coastal terrace ca. 2.4 air-mile SE of Pidgeon Point Lighthouse); Gazos Creek 21 Comment
  JROH923  Hypochaeris glabra John Hunter Thomas 1989-5-9 24720 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC311398  Hypochaeris glabra Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  UCD133331  Hypochaeris glabra W. A. Harvey; J. M. Tucker 1948-6-29 1706 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  UCD133374  Hypochaeris glabra J. Skoss 1948-8-22 111 -A San Mateo San Vincente Canyon, near Montara. Comment
  JROH932  Hypochaeris radicata John Hunter Thomas 1981-7-24 20733 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
  POM55230  Hypochaeris radicata A. D. E. Elmer 1903-04 4861 San Mateo Lake San Andreas Comment
  CDA34446  Iris douglasiana M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 877 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  SD38480  Iris douglasiana Edith A. Purer 1933-5-5 3633 San Mateo Alpine Road. Comment
  UC1252086  Iris douglasiana J. H. Thomas 1959-4-4 7656 San Mateo about 0.7 mi s Gazos Creek (about 6.5 mi s-ward from Pescadero) 45 Comment
  SEINET10529078  Iris douglasiana R. D. Sage 1992-1-6 Sage 13394 -1 San Mateo Collected along purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  UCSB18476  Iris douglasiana Muirhead, M. 1964-4-17 San Mateo on Crocker Estate; Hillsborough; California 91 Comment
  UCSB18695  Iris douglasiana Hutchinson, Sandra 1964-3-24 San Mateo Crystal Springs Lake; Sawyer Camp Road; about 0.6 mile from Skyline Blvd; entrance off of Millbrae Ave 106 Comment
  CAS-BOT-BC133675  Iris longipetala Lewis S. Rose 1964-4-12 64020 San Mateo South San Francisco, San Bruno Mt. 60 Comment
  UCD138696  Iris longipetala Lewis S. Rose 1968-3-20 68009 San Mateo south base of San Bruno Mountains, south San Francisco. 30 Comment
  JROH4432  Iris pseudacorus John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC57732  Isoetes howellii J McMurphy 1906-7-28 s.n. San Mateo Coal Mine Ridge - near Portola Comment
  CAS-BOT-BC57733  Isoetes howellii L. R. Abrams 1923-4-19 10108 San Mateo Alameda de los Pulgas back of Menlo Park Comment
  SJSU16039  Isolepis carinata Toni Corelli, John Rawlings 2016-4-29 1764 San Mateo Cascade Field along Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  CAS-BOT-BC112608  Isolepis cernua Herbert L. Mason 1921-6-2 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC112620  Isolepis cernua W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Beach pasture, Pescadero Comment
  CAS-BOT-BC112627  Isolepis cernua H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach, near Pescadero. 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
  UCD49902  Isolepis cernua Ira L. Wiggins; Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point, San Mateo County. Comment
  UCD37961  Isolepis cernua Beecher Crampton 1962-6-11 6499 San Mateo San Mateo County, northern city limits of Pacifica, along State Highway 1, just southwest of its junction with Skyline Boulevard. Comment
  CAS-BOT-BC340136  Jaumea carnosa LeRoy Abrams 1901-9-1 2224 San Mateo Cooley's Landing Comment
  POM223675  Jaumea carnosa L. S. Rose 1935-8-13 35566 San Mateo Salada. Comment
  UC1192236  Jaumea carnosa Herbert L. Mason 1949-7-7 14033 San Mateo marshes at mouth Pescadero Creek Comment
  CAS-BOT-BC340139  Jaumea carnosa W. R. Dudley 1908-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Laguna Salada Comment
  POM312326  Jaumea carnosa Malcolm A. Nobs, S. Galen Smith 1949-8-26 1598 San Mateo Marshes at the mouth of Pescadero Creek. Comment
  RSA0064344  Juncus balticus Peter Rubtzoff, Elizabeth McClintock 1989-8-31 10044 San Mateo San Bruno Mountains, near Willow Pond (located near Saddle Trail), ca. 0.15 miles north of junction iwth Old Guadalupe Trail. Comment
  JROH4446  Juncus bolanderi John Hunter Thomas 1977-6-16 18805 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake; Delta in Searsville Lake. Comment
  UCR121569  Juncus bufonius George K. Helmkamp, E. A. Helmkamp 1999-6-28 4997 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JROH4455  Juncus bufonius var. bufonius John Rawlings 2012-5-25 1119 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the intersection of Road E and Trail 13 southeast of Searsville Lake. 112 Comment
  JROH4457  Juncus bufonius var. occidentalis John H. Thomas 1955-5-6 4986 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent grassy slopes Comment
  JROH4458  Juncus bufonius var. occidentalis John H. Thomas 1956-4-7 5619 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23990  Juncus confusus Mary Katherine Wicksten 1971-7-2 153 San Mateo Huddart Park at Miwok area Comment
  UC1601740  Juncus effusus subsp. pacificus J. Burtt Davy 1893-6-22 757 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  UCR244744  Juncus effusus var. brunneus Peter Rubtzoff, Roman Gankin 1975-9-11 8372 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  RSA18498  Juncus patens Carl B. Wolf 1927-7-14 622 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  JEPS67130  Juncus phaeocephalus unknown 1925-5-28 2 San Mateo Salada 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
  JROH4510  Juncus xiphioides John H. Thomas 1975-7-31 17982 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4516  Juncus xiphioides John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU16014  Juncus xiphioides John Rawlings, Ken Hickman 2016-5-26 1811 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
  JROH4046  Kickxia spuria John Hunter Thomas 1981-9-24 20753 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4040  Kickxia spuria Herbert Dengler 1958-9-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N.E. Nolan Ridge (the ridge N.E. of Corte Madera Cr.) by trail Comment
  CDA32415  Koeleria P. B. Kennedy 1928-5-2 San Mateo Hills east of Daly City 0 Comment
  CAS-BOT-BC273731  Koeleria pyramidata E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Slope below Nike station Comment
  CAS-BOT-BC273732  Koeleria pyramidata Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC274288  Lachnagrostis filiformis Ida R. Hayward 1927-7-4 s.n. San Mateo Crystal Springs Lake Comment
  JROH948  Lactuca saligna John Hunter Thomas 1983-7-20 22904 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC340469  Lactuca saligna Walter Knight; Irja Knight 1963-10-7 328 San Mateo San Bruno Mountain. Cow Trough Ravine Comment
  CAS-BOT-BC353467  Lactuca serriola Peter Rubtzoff 1975-9-11 8379 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC340703  Lactuca virosa John Thomas Howell 1954-9-8 30108 San Mateo Skyline Blvd. at San Andreas Lake, 2 miles west of San Bruno Comment
  CAS-BOT-BC340704  Lactuca virosa Ira L. Wiggins 1979-8-26 22244 San Mateo Alley between Central and Woodland Avenues, running from Pope to Gilbert Streets, Menlo Park Comment
  CAS-BOT-BC340706  Lactuca virosa Walter Knight; Irja Knight 1963-7-27 s.n. San Mateo San Bruno Mountain. Saddle Camp Comment
  CAS-BOT-BC341627  Lagophylla ramosissima Linda Fox 1969-6-20 1000 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JROH962  Lagophylla ramosissima John H. Thomas 1975-7-31 17984 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC341630  Lagophylla ramosissima V. F. Hesse 1962-6-26 3153 San Mateo Alpine road, 2.6 miles west of Highway 5 457 Comment
  CAS-BOT-BC341637  Lagophylla ramosissima J. I. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Near head of Crystal Springs Lakes Comment
  RSA128849  Lagophylla ramosissima L. R. Abrams 1914-6-2 5111 San Mateo Searsville Lake. Comment
  SD99497  Lamium amplexicaule Ira L. Wiggins 1971-4-27 21108 San Mateo Menolo Park, Vacant Lot Sw corner of Woodland Ave and Pope S. Comment
  CAS-BOT-BC339086  Lasthenia californica A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339093  Lasthenia californica Donald A. Johansen 1932-5-21 686 San Mateo Pigeon Point, west of Pescadero Comment
  CHSC276  Lasthenia californica J. Turner 1930-5-2 San Mateo Moss Beach. Comment
  CHSC68146  Lasthenia californica A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills. Comment
  UCSB18865  Lasthenia californica John Schulte 1963-4-26 96 San Mateo collected 3.0 mi SW, along Jasper Ridge, between Santa Clara Valley and Santa Cruz Mountains UC Stanford - Jasper Ridge, UCS 152 Comment
  CAS-BOT-BC339058  Lasthenia californica Lewis S. Rose 1933-5-3 33141 San Mateo Montara Comment
  CAS-BOT-BC339068  Lasthenia californica Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. Area in Devil's Arroyo Comment
  CAS-BOT-BC339070  Lasthenia californica H. L. Mason 1917-4-10 116 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC339089  Lasthenia californica James McMurphy 1907-5-19 s.n. San Mateo Near Lower Pond, Coal Mine Ridge Comment
  CAS-BOT-BC339094  Lasthenia californica W. R. Dudley 1899-5-14 s.n. San Mateo About hills southwest of Baden Comment
  JROH5789  Lasthenia californica subsp. californica John Rawlings 2016-5-3 1781 San Mateo Jasper Ridge Biological Preserve, Stanford University; bare, rocky, sepentinite about 30 yards west of Rd F in Area C 177 Comment
  JROH971  Lasthenia californica subsp. californica John H. Thomas 1956-4-7 5613 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC517990  Lasthenia californica subsp. californica Lewis S. Rose 1933-4-30 33128 San Mateo Redwood City Comment
  JEPS23589  Lasthenia californica subsp. macrantha Adele Lewis Grant 1917-5-6 939 San Mateo Pebble Beach near Pescadero 3 Comment
  UC1598598  Lasthenia glabrata subsp. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
Read comments
Sep 9 2011
  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
  CAS-BOT-BC368182  Lasthenia minor V. F. Hesse 1964-5-26 3206 San Mateo Pigeon Point 4 Comment
  CAS-BOT-BC368192  Lasthenia minor K. L. Chambers 1956-6-20 1047 San Mateo Pebble Beach near Pescadero Point, between Hwy 1 and the ocean, on bluff near parking area. Comment
  CAS-BOT-BC368191  Lasthenia minor K. L. Chambers 1956-6-20 1044 San Mateo Mouth of Pescadero Creek on bluff between Hwy. 1 and the ocean; around parking area Comment
  SEINET12153854  Lathyrus jepsonii Unknown 1933-1 70 San Mateo Alpine Rd Comment
  POM194716  Lathyrus littoralis H. M. Hall 1924-6-17 11957 San Mateo Salada Comment
  RSA177057  Lathyrus littoralis John H. Thomas 1964-5-9 10379 San Mateo Pescadero Beach. Comment
  JEPS22663  Lathyrus littoralis Irene Brown 1959-5-15 151 San Mateo w of Highway 1 (about 50 feet from Ocean, Sharp Park); Sharp Park 7 Comment
  POM277778  Lathyrus polyphyllus Lyman Benson 1930-5-3 2103 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  UCD35772  Lathyrus vestitus Beecher Crampton 1962-6-11 6494 San Mateo Pacifica, north city limits, along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  POM87741  Lathyrus vestitus subsp. bolanderi L. R. Abrams 1902-4-13 2342 San Mateo Crystal Springs Lake. Comment
  RSA11932  Lathyrus vestitus subsp. vestitus Elmer I. Applegate 1895-3-9 140 San Mateo Woodside Comment
  CDA9326  Lathyrus vestitus var. vestitus M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 878 San Mateo Pacifica: San Pedro Valley County Park, at Brooks Creek Trail trailhead, near visitor center's parking lot. 74 Comment
  JEPS55359  Lathyrus vestitus var. vestitus W. L. Jepson 1921-4-3 9110 San Mateo Colma Canyon Comment
  JROH2039  Lathyrus vestitus var. vestitus John Hunter Thomas 1985-4-11 23518 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC1300854  Lathyrus vestitus var. vestitus Helen K. Sharsmith 1963-2-16 5142 a San Mateo above Daly City (lower slopes of San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  UC15326  Lathyrus vestitus var. vestitus J. Burtt Davy 1895-4-20 1054 San Mateo Lake Pilarcitos Comment
  UC864588  Lathyrus vestitus var. vestitus Lewis S. Rose 1932-5-3 32208 San Mateo San Bruno 182 Comment
  CDA31708  Lavatera arborea M. K. Beyers, G. F. Hrusa, P. Woods, D. Orozco 2010-4-17 s.n. San Mateo Brisbane: Underneath northbound Highway 101 exit (426B), adjacent to the Radisson Hotel s parking lot. Approximately, 700 feet northwest of San Francisco Bay s west shores. Comment
  UC990575  Layia gaillardioides James I. McMurphy 1909-5-25 San Mateo above Pulpit Rock; San Mateo Canyon Comment
  CAS-BOT-BC321091  Layia gaillardioides Kellogg; Brannan 1890-5-31 s.n. San Mateo Redwoods Comment
  CAS-BOT-BC321092  Layia gaillardioides Kellogg 1890-5-16 s.n. San Mateo Unspecified Comment
  UC935712  Layia gaillardioides David D. Keck 1932-5-6 1483 San Mateo w of Milbrae Highlands Skyline Boulevard; Santa Cruz Mountains Comment
  CAS-BOT-BC327361  Layia hieracioides David D. Keck 1932-6-1 1796 San Mateo Above Searsville Lake, on La Honda road, E slope of Santa Cruz Mountains Comment
  CAS-BOT-BC327505  Layia hieracioides J. H. Thomas 1961-5-7 9307 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  RSA51286  Layia hieracioides Peter H. Raven 1950-4-6 1794 San Mateo Summit Ridge; San Bruno Mts. Comment
  JEPS90940  Layia platyglossa Dean W. Taylor 1989-4-18 10221 San Mateo ridgetop 0.4 mi n of Scarper Peak (Santa Cruz Mountains); Santa Cruz Mountains 502 Comment
  SBBG39520  Layia platyglossa L. S. Rose 1970-5-3 San Mateo Black Mtn, Skyline Blvd, W of San Mateo 121 Comment
  CAS-BOT-BC382220  Layia platyglossa David D. Keck 1932-6-18 1980 San Mateo Skyline Blvd. at Langley Hill (SW of Stanford University) 600 Comment
  SEINET10879172  Layia platyglossa John T. Middleton 1937-4-10 Middleton s.n. San Mateo San Mateo Co., Ca. Comment
  POM190415  Layia platyglossa subsp. campestris D. D. Keck 1932-6-18 1980 San Mateo Skyline Boulevard, at Langley Hill (SW of Stanford University) 610 Comment
  POM298330  Layia platyglossa subsp. platyglossa D. D. Keck 1932-5-6 1491 San Mateo East side of Crystal Springs Lake. 61 Comment
  POM185943  Lemna gibba A. D. E. Elmer 1903-07 4765 San Mateo San Pedro. Comment
  CAS-BOT-BC527268  Lemna minuta W. Knight; I. Knight 1966-10-4 2039 San Mateo Crocker Hills marsh between Geneva and Guadalupe Parkway, San Bruno Mountain Comment
  POM193860  Lemna valdiviana Roxana S. Ferris 1920-10-8 2100 San Mateo Santa Cruz Mountain peninsula: first mud lake, Coal Mine Ridge Comment
  CAS-BOT-BC221521  Lepechinia calycina Kellogg 1870-5-1 s.n. San Mateo Unspecified Comment
  CAS-BOT-BC221522  Lepechinia calycina George Oberlander 1940-5-31 142 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC221531  Lepechinia calycina Phillip C. Wheeler 1965-6-20 s.n. San Mateo San Bruno Mountain. Area west of Crystal Cave Canyon Comment
  CAS-BOT-BC221532  Lepechinia calycina Lewis S. Rose 1933-6-9 33225 San Mateo Belmont Comment
  CDA34569  Lepechinia calycina M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 875 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  JROH2785  Lepechinia calycina John H. Thomas 1955-5-6 5015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2791  Lepechinia calycina D. E. Breedlove 1971-5-31 19348 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC166770  Lepidium didymum Peter Rubtzoff 1978-7-8 9233 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCD115359  Lepidium didymum J. D. Skoss 1948-7-25 53 San Mateo San Vicente Canyon near Montara. Comment
  CAS-BOT-BC89219  Lepidium draba J. H. Thomas 1956-4-27 4920 San Mateo Along Bayshore Highway, east of San Carlos. Comment
  UCR47850  Lepidium draba Cynthia Taylor 1971-6-8 147 San Mateo Atherton, corner of Watkins Ave. and railroad tracks 17 Comment
  UCD115700  Lepidium latifolium John Thomas Howell 1978-7-18 53189 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  JEPS121445  Lepidium nitidum Adam C. Schneider with C. Matt Guilliams 2013-2-2 13 San Mateo Crystal Springs Reservoir Comment
  JROH1541  Lepidium nitidum John H. Thomas 1956-4-7 5618 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1549  Lepidium nitidum John Hunter Thomas 1980-4-10 19870 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH1554  Lepidium nitidum John Hunter Thomas 1991-4-11 24984 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA66570  Lepidium oxycarpum D. D. Keck 1932-3-24 1401 San Mateo Redwood City, at border of San Francisco Bay. Comment
  CAS-BOT-BC12844  Lepidium pinnatifidum Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon. Comment
  JROH1563  Lepidium strictum John Hunter Thomas 1988-4-27 24412 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC226610  Leptosiphon ambiguus George Oberlander 1950-4-22 778 San Mateo San Francisco Watershed Reserve Comment
  POM282346  Leptosiphon ambiguus Lyman Benson 1931-3-15 2646 San Mateo Emerald Lake, Redwood City Comment
  UC729676  Leptosiphon androsaceus Carl B. Wolf 1929-5-26 3731 San Mateo s of Pescadero; Pebble Beach Comment
  POM279125  Leptosiphon androsaceus Lyman Benson 1928-4-16 608 San Mateo Searsville Ridge, Stanford U. 152 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
  RSA101022  Leptosiphon liniflorus G. Oberlander 1949-4-18 84 San Mateo South boundary, San Francisco Watershed Reserve Comment
  JROH5708  Leptosiphon parviflorus John Rawlings 2015-3-15 1351 San Mateo Jasper Ridge Biological Preserve, Stanford University; Rd. D. 110 Comment
  UC964718  Leptosiphon parviflorus Herbert L. Mason 1935-5-21 8315 San Mateo Pebble Beach Pescadero Comment
  CAS-BOT-BC324062  Lessingia arachnoidea John Thomas Howell 1926-10-9 2220 San Mateo Between Lake San Andreas and Crystal Springs Lake 91 Comment
  JROH1005  Lessingia glandulifera var. glandulifera L. R. Abrams 1910-8-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1007  Lessingia glandulifera var. glandulifera John H. Thomas 1961-6-7 9532 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1008  Lessingia glandulifera var. glandulifera John H. Thomas 1961-6-7 9532 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1019  Lessingia glandulifera var. glandulifera John Hunter Thomas 1981-7-24 20727 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1035  Lessingia hololeuca John Hunter Thomas 1982-9-23 21164 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH5965  Lessingia pectinata var. tenuipes Ann Lambrecht, Alice Cummings 2017-6-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Road E overlook bend 118 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
  JROH1038  Leucanthemum vulgare John Rawlings 2012-6-19 1135 San Mateo Jasper Ridge Biological Preserve, Stanford University. South bank of dry stream bed of Bear Creek at Serpentine. 84 Comment
  CAS-BOT-BC272289  Leymus X multiflorus J. H. Thomas 1963-6-23 10159 San Mateo Along Alpine Road near Ladera Comment
  CAS-BOT-BC436531  Ligusticum apiifolium A. D. E. Elmer 1903-7-1 4966 San Mateo San Mateo Comment
  CAS-BOT-BC436532  Ligusticum apiifolium A. D. E. Elmer 1903-6-1 4803 San Mateo San Mateo Comment
  POM132683  Ligusticum apiifolium A. D. E. Elmer 1903-06 4803 San Mateo San Mateo Comment
  JROH2986  Ligustrum vulgare John Rawlings 2007-4-11 1052 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the cleared area of private property bordering the Preserve and Corte Madera Creek 115 Comment
  SEINET11763376  Lilaea scilloides H. L. Mason 1922-1 s.n. San Mateo Pigeon Pt Comment
  UC137902  Limnanthes douglasii subsp. douglasii C. F. Baker 1903-4-8 1916 San Mateo San Andreas Lake Comment
  RSA644976  Limnanthes macounii Rudolf Schmid 2000-2-24 2000 -2 San Mateo Aong E side of Hwy 1 S of Moss Beach and directly opposite Half Moon Bay airport. 10 Comment
  UCR247566  Limonium binervosum Michael Perlmutter 2011-6-15 s.n. San Mateo Burlingame, Sanchez Marsh Comment
  JROH4057  Limosella acaulis John Hunter Thomas 1981-7-12 20709 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4058  Limosella acaulis John Hunter Thomas 1982-8-13 21136 San Mateo Jasper Ridge Biological Preserve, Stanford University. Lake edge and in water Comment
  JEPS48590  Linanthus androsaceus James G. Daly 1934-1 332 San Mateo Upper Alpine Canyon, sw San Mateo County Santa Cruz Mts., San Gregorio Watershed 30 Comment
Read comments
Mar 12 2009
  SEINET5556991  Linanthus androsaceus H. S. Gentry 1931-1 91 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  SEINET4854778  Linanthus croceus Alice Eastwood 1901-5-19 s.n. San Mateo Blenheim. Comment
  JROH3182  Linanthus dichotomus W. R. Dudley 1896-3-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  UCR66523  Linanthus parviflorus David D. Keck 1932-5-6 1481 San Mateo Just west of Millbrae Highlands 50 Comment
  JROH5967  Linaria bipartita John Hunter Thomas 1982-5-25 20964 San Mateo Jasper Ridge Biological Preserve; roadside [Sand Hill Rd.] Comment
  CAS-BOT-BC36071  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-10-1 s.n. San Mateo Bear Gulch, Sierra Morena Comment
  CAS-BOT-BC36074  Lithocarpus densiflorus var. densiflorus Margaret A. Barry 1938-5-29 266 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  POM166732  Lithocarpus densiflorus var. densiflorus C. F. Baker 1902-10-1 1759 San Mateo Summit of Coast Range. Comment
  RSA274346  Lithophragma affine subsp. affine Lyman Benson 1928-4-24 92 San Mateo N end Searsville ridge. Stanford University. Santa Cruz mtn range. San Francisquito creek. 91 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-BC342470  Logfia gallica Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  RSA128341  Lolium perenne P. H. Raven 1950-6-3 2205 San Mateo along Millbrae Ave, Millbrae. Comment
  RSA6410  Lolium perenne D. D. Keck 1932-5-6 1474 San Mateo Millbrae Highlands Comment
  RSA95544  Lolium perenne subsp. multiflorum L. S. Rose 1953-4-17 53017 San Mateo Redwood City, along Bayshore Highway 3 Comment
  UC1714473  Lolium temulentum W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  JEPS89917  Lomatium caruifolium var. caruifolium Dean W. Taylor 1988-3-30 9493 San Mateo n. slope of s.e. ridge near the ridgecrest San Bruno Mt. (right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain); Santa Cruz Mts., San Francisco South 7 1/2 Quad., San Bruno 237 Comment
  UC75213  Lomatium caruifolium var. caruifolium C. F. Baker 1902-3-30 426 San Mateo Crystal Springs Lake Comment
  SEINET13944401 Image available Lomatium dasycarpum C. F. Baker 1902-1 461 San Mateo Crystal Springs Lake. Comment
  SEINET196566  Lomatium dasycarpum Pete Rowen 1950-4-16 89 San Mateo Colma Canyon San Brumo Mts. Comment
  UC144367  Lomatium dasycarpum subsp. dasycarpum C. F. Baker 1902-4-6 460 San Mateo Crystal Springs Lake Comment
  UC1073368  Lomatium macrocarpum George B. Rossbach 1955-3-12 370 San Mateo s.e. end Buriburi Ridge (n.w. side San Mateo Creek); San Mateo Creek 76 Comment
  SEINET7881745 Image available Lomatium utriculatum H. S. Yates 1935-1 5210 San Mateo 2 miles N. of Langley Hill Sec. 1 T. 7S. R.3W 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
  JEPS85576  Lonicera hispidula var. vacillans Craig Dremann 1986-8-30 323 San Mateo e La Honda (along Cal. Highway 84 (Woodside-La Honda Road), mile marker 6.68, 150 ft w between road and creek) Comment
  POM284223  Lonicera hispidula var. vacillans Lyman Benson 1930-5-3 2098 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  POM46687  Lonicera hispidula var. vacillans A. D. E. Elmer 1903-06 4255 San Mateo Crystal Springs Lake. Comment
  POM46727  Lonicera hispidula var. vacillans A. D. E. Elmer 1903-07 4596 San Mateo Lake San Andreas. 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
  POM46728  Lonicera involucrata var. ledebourii A. D. E. Elmer 1903-06 4272 San Mateo Lake San Andreas. Comment
  RSA788374  Lonicera involucrata var. ledebourii Peter Rubtzoff 1980-12-11 9635 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  JEPS34466  Lotus benthamii L. R. Heckard, and R. Bacigalupi 1963-7-2 1335 San Mateo trail to Montara Peak (nw slope), above old county road Montara Peak 335 Comment
  SBBG25074  Lotus corniculatus D. Myrick 1966-6-11 1448 San Mateo near Pescadero off Hwy 1 Comment
  SD227810  Lotus corniculatus G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3742 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  POM18625  Lotus formosissimus Edward L. Greene 1902-5-1 689 San Mateo Crystal Springs Lake. Comment
  RSA498717  Lotus stipularis E. A. Purer 1932-7-18 4004 San Mateo Kings Mountain. Comment
Read comments
May 21 2014
  RSA159410  Lotus wrangelianus John H. Thomas 1961-5-14 9384 San Mateo Just north of dam on San Mateo Creek. 122 Comment
  RSA253793  Lupinus C. P. Smith 1948-4-23 48142 San Mateo Highway 1, San Pedro Point, north grade. Comment
  JROH5563  Lupinus affinis John Rawlings 2013-4-2 1186 San Mateo Jasper Ridge Biological Preserve, Stanford University; above upper end of Trail 11 137 Comment
  POM10965  Lupinus affinis C. F. Baker 1902-04 1928 San Mateo Crystal Springs Lake. 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
  UC81978  Lupinus affinis C. F. Baker 1902-4-6 473 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC195820  Lupinus albifrons var. albifrons L. R. A. 1902-4-13 2340 San Mateo San Mateo Canon [Canyon] Comment
  CAS-BOT-BC195795  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-22 48498 San Mateo Highway 5 - junction Woodside 6 mile road, 2.8 miles north 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
  CAS-BOT-BC196131  Lupinus albifrons var. collinus Alice Eastwood 1914-3-12 3759 San Mateo San Bruno Hills Comment
  SEINET10484531  Lupinus albifrons var. collinus Walter Knight, Irja Knight 1963-8-5 Knight s.n. San Mateo Motorcycle ridge, san bruno mountain Comment
  SEINET10970193  Lupinus albifrons var. collinus J. C. Downey 1955-4-2 Downey 212 San Mateo Near the twin peaks 213 Comment
  UC1543208  Lupinus arboreus Donald G. Nelson 1938-7-28 580 San Mateo Moss Beach Comment
  SEINET10488484  Lupinus arboreus Walter Knight, Irja Knight 1964-5-4 Knight s.n. San Mateo San bruno mountains. Nell pubescent from claw to tip. Colma canyon Comment
  RSA0069562  Lupinus arboreus var. eximius Daisie Huang 2006-8-6 06080602 San Mateo Inside San Francisco Water Authority land. 345 Comment
  UC725853  Lupinus bicolor A. A. Heller 1907-4-20 8451 San Mateo near Lake Merced; near Lake Merced Comment
  UCD107181  Lupinus bicolor A. A. Heller 1907-4-20 8451 San Mateo near Lake Merced. Comment
  SEINET10484957  Lupinus bicolor var. trifidus David B. Dunn, Howard Brown 1946-5-15 Dunn 2596 San Mateo Collected in meadow land in the bottom of a 50 ft. ravine with a small lake at one end; 1 block N of Sloat Blvd. at Vale Ave. Comment
  RSA212136  Lupinus densiflorus var. densiflorus L. S. Rose 1970-5-9 70038 San Mateo Chateau Drive near Skyline, Hillsborough. 91 Comment
  RSA0069566  Lupinus formosus Daisie Huang 2006-8-6 06080603 San Mateo Inside San Francisco Water Authority land. 288 Comment
  JROH5630  Lupinus formosus var. formosus John Rawlings 2014-5-9 1228 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 20 meters west of Road C and 20 meters south of Trail 18. 127 Comment
  POM276515  Lupinus latifolius subsp. latifolius Lyman D. Benson 1930-5-3 2092 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  SD27830  Lupinus menziesii Carl B. Wolf 1929-5-17 3712 San Mateo Alpine Road east of Skyline Blvd. 305 Comment
  UC127041  Lupinus microcarpus var. microcarpus J. Burtt Davy Jun 21 1893-Jun 23 1893 1151 San Mateo Pilarcitos Lake and Canyon 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
  JROH2133  Lupinus nanus John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG66998  Lupinus nanus L. R. Abrams 1914-4-20 5128 San Mateo confluence of Los Troncos and San Francisquito crks Comment
  UCSB16951  Lupinus nanus Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  SEINET12154596  Lupinus nanus M. T. Doutt 1931-1 s.n. San Mateo Skyline Blvd, W of Hillbrae Comment
  RSA178637  Lupinus nanus subsp. nanus James I. McMurphy 1911-4-24 s.n. San Mateo Corner between San Francisquito and Los Trancos creeks near Stanford University. Comment
  RSA278541  Lupinus nanus subsp. nanus T. C. Emmel 1965-3-30 31 San Mateo Carnegie Inst. field, Stanford University. Comment
  POM276299  Lupinus polycarpus Lyman D. Benson 1934-3-31 5747 San Mateo Menlo Park 30 Comment
  SEINET10486141  Lupinus polycarpus William R. Dudley 1894-4-11 Dudley UMO 180410 San Mateo Near Menlo Park Reservoir. Comment
  UC2049897  Lupinus succulentus H. W. Johansen 1955-4-10 51 San Mateo Pescadero Creek road, 4 miles E of Pescadero. Comment
  SEINET10969931  Lupinus succulentus Walter Knight, Irja Knight 1964-3-16 Knight s.n. San Mateo San bruno mtns. San bruno pt. Comment
  UC187796 Image available Lupinus succulentus var. layneae Katharine Brandegee 1918-6-23 San Mateo Farallon City Comment
  SD60214  Lupinus vallicola subsp. apricus L. R. Abrams 1926-4-19 San Mateo Junction of Los Trancos & San Francisquito Creek Comment
  UC511346  Lupinus variicolor Lyman Benson 1931-3-3 2619 San Mateo Ocean Bluff Moss Beach, Ocean Bluff (Moss Beach) 30 Comment
  SEINET10489108  Lupinus variicolor Smith 1948-4-23 Smith 48139 San Mateo Hwy 1, montara, government property. Comment
  JROH4525  Luzula comosa var. comosa John H. Thomas 1967-4-20 12712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5679  Luzula comosa var. comosa John Rawlings 2015-3-3 1315 San Mateo Jasper Ridge Biological Preserve, Stanford University; small opening off trail 8 in oak woodland. 126 Comment
  CAS-BOT-BC441368  Luzula subsessilis John H. Thomas 1958-3-19 7060 San Mateo East facing slope of San Bruno Mountain, just N of South San Francisco 91 Comment
  CAS-BOT-BC441370  Luzula subsessilis John H. Thomas 1965-4-29 10611 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  UCR228239  Luzula subsessilis Peter F. Zika 2010-5-1 24790 San Mateo San Francisco Bay, Santa Cruz Mountains, southeast shore of Alpine Pond 660 Comment
  UCD98223  Lychnis coronaria George Jack 1974-7-15 s.n. San Mateo San Mateo. Comment
  JROH4166  Lycopersicon esculentum Toni Corelli 2002-10-11 249 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road H, below road inside JRBP that is parallel to Sand Hill Road 121 Comment
  POM186050  Lysichiton americanus A. D. E. Elmer 1903-06 4551 San Mateo Butano Creek Comment
  RSA0015076  Lythrum californicum L. R. Abrams 1901-09 2219 San Mateo Menlo Park, borders of Bay. Comment
  JROH2943  Lythrum hyssopifolia L. R. Abrams 1914-7-1 5113 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  SD39672  Lythrum hyssopifolia Edith A. Purer 1933-7-27 5366 San Mateo 2.0 miles south of Pigeon Point. Comment
  CAS-BOT-BC342587  Madia Fred Hemphill 1973-4-15 654 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC343900  Madia elegans L. R. Abrams; I. L. Wiggins 1930-11-13 173 A San Mateo Hillside above Crystal Springs Lake Comment
  CAS-BOT-BC539288  Madia elegans John Rawlings; Ken Hickman 2016-7-21 1904 San Mateo Caltrans right-of-way upslope from Hwy 92 W onramp to Hwy 280 N; near a concrete drainage ditch a few yards downslope from San Francisco Watershed fenceline 122 Comment
  HSC23936  Madia elegans Mary Katherine Wicksten 1971-7-22 185 San Mateo Huddart Park, by park entrance Comment
  CAS-BOT-BC344488  Madia exigua W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Ravine west of San Mateo (upper) Creek Comment
  JROH1066  Madia gracilis John H. Thomas 1958-5-10 7142 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1074  Madia gracilis J. H. Thomas 1977-4-29 18571 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1081  Madia gracilis John Hunter Thomas 1981-5-25 20621 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1095  Madia gracilis John Hunter Thomas 1992-5-5 25215 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  RSA11165  Madia gracilis C. B. Wolf 1927-7-14 595 San Mateo Summit of Kings Mountain road at junction with Skyline Blvd. 610 Comment
  POM362194  Madia madioides Donald A. Johansen 1932-4-15 680 San Mateo Between Woodside and Kings Mountain Comment
  CAS-BOT-BC345115  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi. S.W. of Pescadero, within 100 m. of ocean Comment
  CAS-BOT-BC345126  Madia sativa Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  CAS-BOT-BC345136  Madia sativa LeRoy Abrams 1901-9-1 2227 San Mateo Menlo Park Comment
  CAS-BOT-BC345139  Madia sativa Margaret A. Barry 1937-7-17 211 San Mateo Coal Mine Ridge Comment
  JROH1102  Madia sativa John H. Thomas 1973-6-10 16812 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG27925  Madia sativa C. B. Wolf 1927-6-29 561 San Mateo coast S of Pescadero at Pebble Beach Comment
  CAS-BOT-BC345129  Madia sativa David D. Keck 1934-7-7 2941 San Mateo South of the mouth of Tunitas Creek Comment
  CAS-BOT-BC345133  Madia sativa Peter H. Raven 1950-6-3 2218 San Mateo Millbrae Ave., Millbrae 60 Comment
  CAS-BOT-BC345134  Madia sativa Bruce G. Baldwin 1985-9-1 513 b San Mateo 0.5 miles west of Interstate 280 along Sand Hill Road Comment
  JROH1113  Madia sativa John Hunter Thomas 1988-6-6 24511 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Lakeside Laboratory Comment
  RSA184909  Madia sativa L. S. Rose 1966-8-6 66078 San Mateo San Bruno Mountain, head of Colma Canyon 213 Comment
  CHSC20345  Maianthemum racemosum L. A. Wright Jr. 1971-4-4 21 San Mateo 0.6 miles on Bean Hollow Road off of Pescadero Road, ca. 1.0 mi e of Highway 1. About 10 ft off of the n edge of the road. 60 Comment
  CAS-BOT-BC512107  Maianthemum racemosum subsp. amplexicaule Fred Hemphill 1973-3-17 638 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive 207 Comment
  CAS-BOT-BC512100  Maianthemum racemosum subsp. amplexicaule Everett O'Bannon; Nancy O'Bannon 1956-4-15 s.n. San Mateo Sawyer's Road, near Cystal Springs Lake above Burlingame and Millbrae Comment
  POM226215  Maianthemum stellatum Lewis S. Rose 1933-4-9 33070 San Mateo Belmont Comment
  CAS-BOT-BC514160  Maianthemum stellatum W. R. Dudley 1900-3-18 s. n. San Mateo Near San Andreas Comment
  UCSB17388  Maianthemum stellatum Schulte, John 1963-4-9 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC203908  Malacothamnus aboriginum Alice Eastwood; John Thomas Howell 1939-6-30 7435 San Mateo Los Trancos Creek near Stanford University Comment
  CAS-BOT-BC206248  Malacothamnus fasciculatus Josephine D. Randall 1907-7-24 249 San Mateo Crystal Springs Lake - Santa Cruz Peninsula Comment
  UCD39014  Malva arborea Beecher Crampton 1962-6-11 6510 San Mateo Pacifica, Sharp Park at Mori's Point. Comment
  SEINET7247931  Malva arborea Bob Schmalzel 1974-1 s.n. San Mateo Growing along highway 1 200 yards from the Pacific Ocean 9 miles south of Half Moon Bay. 9 Comment
  RSA195577  Malva nicaeensis John H. Thomas 1966-4-24 11576 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1900  Marah fabacea John H. Thomas 1961-4-29 9195 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  RSA15241  Marah fabacea C. B. Wolf 1927-2-17 202 San Mateo Los Trancos Creek, 2 miles back of Stanford University. Comment
  SD99478  Marah fabacea Ira L. Wiggins 1975-4-17 22145 San Mateo Northeast side of Southern Pacific right of way, between Willow Road and San Francisquito Creek, Menlo Park. Comment
  CAS-BOT-BC238366  Maurandella antirrhiniflora James Henrickson 1973-5-27 10234 San Mateo 6 (air) miles SE of Kelso in limestone canyon above Cornfield Spring in N side of Providence Mts. Comment
Read comments
Oct 4 2017
  UC635442  Meconella californica H. L. Mason 1928-2-22 4162 San Mateo San Bruno Mtns Comment
  JEPS51536  Meconella californica Ivar Tidestrom 1894-3-22 San Mateo Comment
  JROH2151  Medicago arabica John H. Thomas 1955-5-6 5010 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 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-BC269478  Melica californica W. R. Dudley 1900-3-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Fields East of Salida Valley Comment
  JROH5300  Melica imperfecta D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. North slope on Searsville Ridge. Comment
  JROH5306  Melica imperfecta John Hunter Thomas 1980-5-8 24852 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing. Comment
  CAS-BOT-BC264248  Melica torreyana W. R. Dudley 1899-5-1 s.n. San Mateo Road from San Andreas Rs. to Pilarcitos, Santa Cruz Mountain Peninsula Comment
  JROH5314  Melica torreyana John H. Thomas 1970-4-29 15615 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12155221  Melilotus albus E. H. Graham 1931-1 6925 San Mateo Ano Nuevo Rt. S of San Francisco Comment
  JROH2182  Melilotus indicus John H. Thomas 1965-5-12 10646 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM16744  Melilotus indicus A. D. E. Elmer 1903-06 4278 San Mateo Crystal Springs Lake. Comment
  JROH2823  Mentha pulegium Carol Zabel 1989-8-11 25 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank, upstream from low-flow crossing on Road C Comment
  RSA131298  Mentha pulegium Roxana S. Ferris 1920-9-3 2050 San Mateo 2nd Mud Lake; Coal Mine Ridge Comment
  RSA135750  Mercurialis annua John H. Thomas 1955-11-9 5502 San Mateo Fallow Brussel Sprout field near Sanchez Adobe House, San Pedro Valley, about 8.5 miles south of San Francisco - San Mateo County line, and 0.9 mile inland from the ocean. Comment
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Aug 8 2010
  RSA135751  Mercurialis annua John H. Thomas 1955-11-9 5503 San Mateo Fallow Brussel Sprout field near Sanchez Adobe House, San Pedro Valley, about 8.5 miles south of San Francisco - San Mateo County line, and 0.9 mile inland from the ocean. Comment
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Aug 8 2010
  CDA4874  Mercurialis annua T. C. Fuller 1967-8-23 16293 San Mateo Coastways Ranch, 0.2 mile east of the Coast Highway (Hwy 1), 0.2 mile north of the county line of Santa Cruz Co., 0 Comment
  SBBG119130  Mercurialis annua M. C. Carroll 2006-2-28 San Mateo near jct of St Hwy 84 and Portola Ave, Woodside 198 Comment
  CAS-BOT-BC428901  Micranthes californica Margaret A. Barry 1938-3-13 233 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC428902  Micranthes californica George Oberlander 1949-4-9 50 San Mateo San Francisco Watershed Reserve. Northern Sweeney Ridge Comment
  RSA100997  Micropus californicus G. Oberlander 1949-7-24 286 San Mateo Northern Cahill Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC348571  Micropus californicus var. californicus John H. Thomas 1974-4-11 17138 B San Mateo Area to the SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  CAS-BOT-BC348572  Micropus californicus var. californicus Ned Cahill 1974-4-18 134 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1132  Micropus californicus var. californicus John Hunter Thomas 1988-4-28 24422 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC349021  Microseris douglasii subsp. douglasii LeRoy Abrams 1902-5-4 2418 San Mateo Woodside Comment
  CAS-BOT-BC349022  Microseris douglasii subsp. douglasii H. A. Dutton 1900-3-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC349031  Microseris douglasii subsp. douglasii John H. Thomas 1961-5-7 9259 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS49068  Microseris douglasii subsp. douglasii Lewis S. Rose 1966-5-2 66037 A San Mateo w Redwood City; Emerald Lake 91 Comment
  JEPS49070  Microseris douglasii subsp. douglasii Lewis S. Rose 1966-5-2 66037 B San Mateo w Redwood City; Emerald Lake 91 Comment
  JROH1140  Microseris douglasii subsp. douglasii John H. Thomas 1957-4-16 6658 San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent slopes Comment
  JROH1146  Microseris douglasii subsp. douglasii John Hunter Thomas 1981-5-8 20548 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC349032  Microseris douglasii subsp. douglasii John H. Thomas 1969-4-24 14903 San Mateo Near Canada College, Redwood City, near Farm Hill Drive Comment
  RSA107061  Microseris douglasii subsp. douglasii L. S. Rose 1956-5-28 56079 San Mateo Skyline Blvd W of San Mateo. 183 Comment
  RSA116721  Microseris douglasii subsp. tenella Harry A. Dutton 1900-4-17 s.n. San Mateo Woodside Comment
  RSA184976  Microseris douglasii subsp. tenella L. S. Rose 1966-5-2 66037 -B San Mateo Emerald Lake, west of Redwood City. 91 Comment
  CAS-BOT-BC349140  Microseris douglasii subsp. tenella Kenton L. Chambers 1953-5-5 457 San Mateo Bayshore Hwy., 1.5 mi. n. of Dumbarton Bridge Road intersection Comment
  CAS-BOT-BC349147  Microseris douglasii subsp. tenella L. R. Abrams 1918-4-30 7212 San Mateo San Bruno Hills, Bay Shore [Bayshore] road Comment
  JROH5921  Microsteris gracilis John H. Thomas 1982-3-12 20804 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near [Escobar horse trail gate] fence. Comment
  POM5073  Mimulus aurantiacus var. aurantiacus Stewart H. Burnham 1894-4-21 s.n. San Mateo [Unspecified] Comment
  RSA10375  Mimulus aurantiacus var. aurantiacus H. A. Barker 1926-5-1 607 San Mateo Kings Mt. Comment
  UC1063401  Mimulus aurantiacus var. aurantiacus H. S. Yates 1935-2-3 5013 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quadrangle Comment
  UC1206490  Mimulus grandis Le Roy Abrams 1902-5-4 2422 San Mateo Woodside Comment
  JROH4092  Mimulus guttatus John Hunter Thomas 1981-4-23 20472 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC174578  Minuartia californica Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills Comment
  POM151741  Minuartia douglasii Edward L. Greene 1902-5-4 835 San Mateo Woodside. Comment
  JROH1707  Minuartia douglasii Ruth Porter 1991-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Area C Comment
  JROH1708  Minuartia douglasii John Hunter Thomas 1991-5-2 25011 San Mateo Jasper Ridge Biological Preserve, Stanford University; near exclosure Comment
  CDA3325  Mirabilis jalapa W. Davis 1962-7-23 San Mateo San Bruno. 0 Comment
  NY429333  Monardella franciscana A. D. E. Elmer 07 1903 4766 San Mateo San Pedro Comment
  CAS-BOT-BC214177  Monardella villosa Ned Cahill 1974-7-14 357 San Mateo Near the interesection of Canada and Edgewood Roads about 3 mi westward from Redwood City Comment
  RSA185020  Monardella villosa L. S. Rose 1965-6-15 65080 San Mateo South of parking lot near summit, San Bruno Mountain 366 Comment
  UCD125292  Monardella villosa J. M Tucker 1951-8-6 2219 San Mateo On northwest-facing hillslope; M. R. Mattei ranch, ca. 1.5 miles northeast of Pescadero. Comment
  SEINET10582383  Monardella villosa subsp. franciscana A. Graff 1993-6-14 Graff 4 San Mateo 0.4 miles down Bean Hollow Road from its intersection with Pescadero Road, along right road cut. Windy, exposed, dry, steep, rocky cuts. Locally infrequent, with Artemisia californica, Baccharis pilularis, Mimulus aurantiacus, Eriophyllum stachaedifolium, Anaphalis margaritacea, Dudleya sp., Scrophularia californica, Eriogonum sp., grasses. Comment
  SEINET10961432  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 184 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  JEPS121451  Monardella villosa subsp. villosa Adam C. Schneider 2013-5-17 127 San Mateo Crystal Springs Reservoir Comment
  JROH2845  Monardella villosa subsp. villosa John Hunter Thomas 1981-6-4 20671 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2850  Monardella villosa subsp. villosa John Hunter Thomas 1988-6-2 24507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET892709  Monardella villosa subsp. villosa Lewis S. Rose 1950-1 50135 San Mateo Emerald Lake region, hills west of Redwood City 243 Comment
  JROH2847  Monardella villosa subsp. villosa John Hunter Thomas 1982-6-7 21026 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  JROH1157  Monolopia gracilens Oz Garton 1968-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1158  Monolopia gracilens D. E. Breedlove 1971-5-11 19333 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-BC508588  Muilla maritima L. S. Rose 1927-3-25 s.n. San Mateo Crystal Springs Lake Comment
  UC1252098  Myosotis latifolia J. H. Thomas 1955-3-18 4687 San Mateo 5 mi. up Tunitas Creek Rd. from coast 304 Comment
  RSA18201  Myosotis latifolia C. B. Wolf 1929-5-25 3735 San Mateo 2 miles from Pescadero on Alpine Creek. Comment
  UCD119519  Myosotis latifolia Alison Blake 2003-4-14 1 San Mateo 10' East of SE Corner of Volunteer Parking Lot off of S.Dr on Filoli property, NW of Filoli S.Gate at Canada Rd. 518 Comment
  CAS-BOT-BC101769  Myrica californica W. R. Dudley 1894-9-22 s.n. San Mateo Preston's Ravine, Portola Valley Comment
  CAS-BOT-BC101771  Myrica californica John H. Thomas 1976-10-7 18394 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south 30 Comment
  JROH2694  Myriophyllum aquaticum John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2701  Myriophyllum aquaticum M. Whitley 1990-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By the floats in Searsville Lake. Comment
  HSC13478  Myriophyllum sibiricum C. B. Wolf 1927-6-15 2173 San Mateo Along Skyline Blvd., 6-8 mi. S of San Francisco Comment
  JROH2978  Myrtus communis John H. Thomas 1967-6-1 12980 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM295476  Nassella pulchra Lyman Benson 1930-4-17 2080 San Mateo Stanford University. 152 Comment
  JROH1572  Nasturtium officinale John Hunter Thomas 1978-7-2 19242 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  JROH3207  Navarretia heterodoxa John Hunter Thomas 1986-6-9 24092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3208  Navarretia squarrosa Richard L. Garber 1971-7-13 66 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1124148  Navarretia squarrosa A. E. Wieslander 1935-2-3 504 San Mateo 0.5 mi se Pigeon Pt.; Santa Cruz Quad. 30 Comment
  JEPS48591  Navarretia squarrosa James G. Daly 1934-1 382 San Mateo near road to La Honda (San Gregorio watershed, on ridge of Santa Cruz Mts., sw San Mateo County); Santa Cruz Mts., San Gregorio Comment
  JROH2753  Nemophila John Hunter Thomas 1991-4-25 24994 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rattlesnake Rocks Comment
  CAS-BOT-BC219485  Nemophila parviflora L. Constance 1938-5-16 2241 San Mateo Near Crystal Springs Lake, 5 miles southwest of San Mateo 121 Comment
  RSA120713  Nemophila parviflora S. S. Tillett, I Sternberg 1956-6-24 535 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  SEINET3840801  Nemophila parviflora Unknown 2005-6-21 5 .368 San Mateo Northeast corner of Pilarcitos Lake, SF Water District land 250 Comment
  JROH5667  Nemophila parviflora var. parviflora John Rawlings 2014-3-31 1243 San Mateo Jasper Ridge Biological Preserve, Stanford University; along uphill side of Rd G just south of small drainage south of Rd G intersection with Rd J. 107 Comment
  RSA152238  Nemophila parviflora var. parviflora I. L. Wiggins 1925-04 1670 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  HSC23906  Notholithocarpus densiflorus var. densiflorus Mary Katherine Wicksten 1971-6-17 84 San Mateo Huddart Park; along road to family campground, near Madrone Area Comment
  CAS-BOT-BC140442  Oemleria cerasiformis John H. Thomas 1967-2-9 12400 San Mateo San Bruno, near intersection of Skyline Blvd. and Berkshire Dr. Comment
  JROH3709  Oemleria cerasiformis John H. Thomas 1975-5-2 17852 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3715  Oemleria cerasiformis John Hunter Thomas 1985-4-25 23565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3718  Oemleria cerasiformis John Hunter Thomas 1990-4-26 24811 San Mateo Jasper Ridge Biological Preserve, Stanford University. To the west of the dam Comment
  POM139643  Oemleria cerasiformis A. D. E. Elmer 1903-03 4579 San Mateo Woodside. Comment
  UC676734  Oemleria cerasiformis Reed C. Rollins 1941-2-22 2938 San Mateo about 10 mi nw Palo Alto 152 Comment
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Apr 10 2013
  UC1122258  Oenothera elata subsp. hookeri N. K. Carlson 1935-7-1 111 San Mateo Little Butano and Road Santa Cruz Quadrangle Comment
  UC873965  Oenothera elata subsp. hookeri L. R. Abrams and I. L. Wiggins 1939-6-3 438 San Mateo 2 mi n Pigeon Point Lighthouse Comment
  SEINET5548756  Onagraceae H. S. Gentry 1931-1 85 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH3087  Orobanche John Hunter Thomas 1991-12-28 25118 San Mateo Jasper Ridge Biological Preserve, Stanford University; Rattlesnake Rocks along path to redwoods Comment
  SEINET199760  Orobanche californica subsp. californica Herbert L. Mason 1927-7-28 3983 San Mateo Pigeon Point Comment
  CAS-BOT-BC499691  Orobanche californica subsp. californica Julia McDonald 1918-7-1 s.n. San Mateo Pescadero Comment
  CAS-BOT-BC499692  Orobanche californica subsp. californica Dr. Henry T. Taabor 1953-8-30 s.n. San Mateo Pigeon Pt. Comment
  JEPS121488  Orobanche fasciculata Adam C. Schneider with C. Matt Guilliams 2013-5-17 189 San Mateo Crystal Springs Reservoir Comment
  JROH3088  Orobanche uniflora John H. Thomas 1968-5-3 14444 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC500317  Orobanche uniflora subsp. occidentalis Walter Knight; Irja Knight 1965-4-25 1073 San Mateo San Bruno Mountain: Owl's Canyon ner rock ledges Comment
  SEINET12270179  Orthocarpus densiflorus M. T. Doutt 1931-1 416 San Mateo Skyline Blvd, W of Hillbrae Comment
  POM126837  Orthocarpus erianthus var. roseus R. L. Pendleton 1907-4-20 618 San Mateo Ocean View. 122 Comment
  RSA51311  Orthocarpus erianthus var. roseus Peter H. Raven 1950-4-16 1814 San Mateo Between Geneva Ave, San Francisco Co and San Bruno Mts. 183 Comment
  RSA184977  Orthocarpus lithospermoides L. S. Rose 1966-5-2 66034 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  RSA402039A  Orthocarpus lithospermoides Francis W. Pennell, D. D. Keck 1940-5-15 25413 San Mateo Emerald Lake, above Redwood City. 46 Comment
  SEINET12119094  Osmorhiza chilensis Unknown 1932-1 9173 San Mateo Los Francos Woods Comment
  POM133304  Osmorhiza purpurea A. D. E. Elmer 1900-05 1982 San Mateo La Honda Comment
  RSA0089401  Oxalis articulata subsp. rubra Dean Wm. Taylor 2016-2-23 21612 San Mateo Moss Beach; western shoulder bank of Highway 1 on the western ROW edge as it parallels Vallenman Street. 18 Comment
  UCR2998  Oxalis incarnata Wm. Horn Jr. 1963-4-7 630407- 01 San Mateo San Francisco Bay, Hillsborough, 2240 Redington Road 30 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
  POM278936  Oxalis oregana Lyman Benson 1931-2-27 2616 San Mateo Woodside, Santa Cruz mountains, San Francisquito Creek watershed, Kings Mt Road 183 Comment
  RSA76963  Oxalis pes-caprae Mabel Peirson 1926-2-24 8218 San Mateo South of Colma Comment
  JROH5872  Parentucellia viscosa Ann Lambrecht 2011-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 6-8 m off road from Main Gate to visitor parking lot, about 3 m north of power line Comment
  JROH5342  Paspalum distichum W. R. Dudley 1903-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Upper end of Searsville Lake. Comment
  JROH1405  Pectocarya pusilla Toni Corelli 2004-4-18 270 San Mateo Jasper Ridge Biological Preserve, Stanford University. On trail 9 182 Comment
  JROH4119  Pedicularis densiflora John Hunter Thomas 1985-4-22 23550 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI9314  Pedicularis densiflora Lewis S. Rose 1964-3-23 64013 San Mateo Emerald Lake, W of Redwood City 122 Comment
  POM15581  Pedicularis densiflora A. D. E. Elmer 1903-05 4497 San Mateo Woodside. Comment
  UC202754  Pedicularis densiflora A. D. E. Elmer 1903-5-1 4497 San Mateo Woodside Comment
  JROH4105  Pedicularis densiflora John H. Thomas 1960-4-2 8562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4107  Pedicularis densiflora Duncan M. Porter 1961-1-18 736 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of Jasper Ridge 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
  SBBG34023  Pedicularis densiflora L. S. Rose 1969-3-27 San Mateo 2 mi NW of Woodside 182 Comment
  CAS-BOT-BC266667  Pedicularis dudleyi Rimo Bacigalupi 1923-1-1 s.n. San Mateo Peters Creek near Pescadero Creek Comment
  JEPS82090 Image available Pedicularis dudleyi Rimo Bacigalupi with J. H. Thomas and L. Heckard 1961-5-23 7712 San Mateo 1/3 mi n of its confulence with Pescadero Creek (e side of Peters Creek); Peters Creek 134 Comment
  SEINET12182596  Pelargonium L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt 1 Comment
  SFV4292  Pelargonium capitatum J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1, almost 10 miles north of Santa Cruz County line Open roadside. 30 Comment
  JEPS81003  Pelargonium vitifolium Edward Lee with H. L. Mason 1935-6-16 1530 San Mateo between Pigeon Point and San Gregorio Comment
  JROH105  Pellaea mucronata var. mucronata L. R. Abrams 1916-3-27 5588 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Ridge Comment
  RSA137339  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  SJSU14193  Pentachaeta bellidiflora Toni Corelli 1989-4-2 201 San Mateo watershed triangle between Edgewood & Canada Rds 170 Comment
  JROH110  Pentagramma triangularis subsp. triangularis John H. Thomas 1970-1-1 15498 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH113  Pentagramma triangularis subsp. triangularis Lawrence J. Winship 1974-11-16 13 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC222702  Perideridia gairdneri subsp. gairdneri V. F. Hesse 1954-7-30 1344 San Mateo Near Pebble Beach 15 Comment
  JROH311  Perideridia kelloggii John H. Thomas 1975-7-31 17981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC418848  Persicaria hydropiperoides Ira L. Wiggins 1985-9-28 22298 San Mateo Bed of San Francisquito Creek, N side of creek bed, just above Pope Street bridge, Menlo Park Comment
  JROH3274  Persicaria lapathifolia John Hunter Thomas 1981-10-25 20766 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta. Comment
  CAS-BOT-BC330251  Petasites frigidus var. palmatus John Thomas Howell 1924-2-23 269 San Mateo King Mountain Comment
  CAS-BOT-BC330310  Petasites frigidus var. palmatus L. R. Abrams 1904-3-7 s.n. San Mateo Santa Cruz Mountain Peninsula. Bear Gulch 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
  UC1301047  Petasites frigidus var. palmatus Helen K. Sharsmith 1963-3-23 5249 San Mateo Alpine Creek Canyon San Francisco Bay Region, Santa Cruz Mountains 243 Comment
  UC881073  Phacelia distans Lewis S. Rose 1939-4-13 39065 San Mateo near Crystal Springs Lake; San Mateo Canyon 60 Comment
  UC1084388  Phacelia divaricata G. Thomas Robbins 1937-4-11 96 San Mateo near Spring Valley Lakes (along road to Woodside) Comment
  JROH2764  Phacelia rattanii John H. Thomas 1961-6-7 9530 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA128340  Phalaris californica P. H. Raven 1950-6-3 2275 San Mateo along dry rivulet flowing into San Andrews Lake, Crystal Springs Lake 122 Comment
  UC650502  Phalaris californica Ira L. Wiggins 1928-4-22 2943 San Mateo Moss Beach Comment
  UCD88567  Phalaris californica P. B. Kennedy 1916-5-1 s.n. San Mateo Crocker Estate, Burlingame. Comment
  CAS-BOT-BC259013  Phalaris californica W. R. Dudley 1905-6-19 s.n. San Mateo Santa Cruz Mountain Peninsula. New Grade Road, near top of Black Mt. Comment
  CAS-BOT-BC250646  Phalaris minor John Thomas Howell 1937-7-5 13099 San Mateo Redwood City along Bayshore Highway Comment
  JROH5384  Phleum pratense John Rawlings 2009-6-3 1024 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek 82 Comment
  JROH4293  Phoradendron serotinum subsp. tomentosum John H. Thomas 1975-1-14 17674 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC2056144  Phyllospadix scouleri Melvin Parris, Steve Davenport 1980-11-20 13 San Mateo Ano Nuevo Island Comment
  CAS-BOT-BC452028  Phyllospadix torreyi Robert Setzer 1969-12-7 3854 San Mateo Pigeon Point, about 1/4 mile south from lighthouse. Comment
  JROH4174  Physalis philadelphica Toni Corelli 2011-7-12 370 San Mateo Jasper Ridge Biological Preserve, Stanford University; south of Road B 77 Comment
  JROH3720  Physocarpus capitatus John H. Thomas 1962-7-15 9915 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near northern end of ridge Comment
  JROH3726  Physocarpus capitatus John H. Thomas 1977-4-19 18535 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek along low flow crossing Comment
  POM222904  Physocarpus capitatus J. P. Rose 1909-4-17 s.n. San Mateo Los Trancos Creek. 61 Comment
  RSA176725  Physocarpus capitatus John H. Thomas 1962-7-15 9915 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  SD37695  Physocarpus capitatus Edith A. Purer 1933-5-9 3604 San Mateo Stevens Creek Comment
  CAS-BOT-BC206940  Pickeringia montana var. montana George Oberlander 1950-2-1 412 San Mateo Southern Cahill - San Francisco Watershed Reserve Comment
  CAS-BOT-BC136530  Piperia candida W. R. Dudley 1905-6-18 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137315  Piperia elegans L. R. Abrams 1909-8-2 4274 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JROH5863  Pistacia atlantica Toni Corelli 2003-2-26 258 San Mateo Jasper Ridge Biological Preserve, Stanford University. Above lakeside Trail 21 to spillway 114 Comment
  JROH2205  Pisum sativum John H. Thomas 1967-4-28 12724 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC228123  Plagiobothrys chorisianus E. L. Greene 1902-3-30 429 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC228133  Plagiobothrys chorisianus John Thomas Howell 1938-5-1 13784 San Mateo Near South San Francisco Comment
  CAS-BOT-BC228134  Plagiobothrys chorisianus Edward Lee Greene 1886-5-10 s.n. San Mateo Belmont Comment
  UC191864  Plagiobothrys chorisianus Edward Lee Greene 1886-5-10 San Mateo Belmont Comment
  CAS-BOT-BC228124  Plagiobothrys chorisianus Roxana S. Ferris 1921-4-7 2136 San Mateo San Bruno Mountain 30 Comment
  RSA128858  Plagiobothrys chorisianus L. R. Abrams 1904-4-10 s.n. San Mateo Santa Cruz Mountain peninsula, east end of Crystal Springs Lake Comment
  RSA216143  Plagiobothrys chorisianus P. H. Raven 1954-5-16 s.n. San Mateo North of mouth of Lobos Creek, Presidio Comment
  CAS-BOT-BC228157  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1893-5-1 s.n. San Mateo The Santa Cruz Mountain Peninsula. N of San Bruno Comment
  CAS-BOT-BC228167  Plagiobothrys chorisianus var. chorisianus J. I. McMurphy 1906-5-8 s.n. San Mateo The Santa Cruz Mountain Peninsula. Pond by road between Woodside and Byrne's Store Comment
  POM287819  Plagiobothrys chorisianus var. chorisianus E. A. Purer 1933-7-27 5392 San Mateo 2 miles south of Pigeon Point. 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
  JROH1411  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1971-4-3 15748 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1419  Plagiobothrys chorisianus var. hickmanii John Hunter Thomas 1983-5-3 21878 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
  UC25045  Plagiobothrys nothofulvus Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  POM287296  Plagiobothrys nothofulvus Lyman Benson 1930-5-1 2055 San Mateo Stanford University. Mt. Range: San Lorenzo. 122 Comment
  JROH1435  Plagiobothrys tenellus P. R. Hickborn 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA153467  Plantago erecta John H. Thomas 1961-5-7 9250 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  HSC16822  Plantago erecta L. S. Rose 1965-5-3 65056 San Mateo San Bruno Mtn., N end 183 Comment
  RSA278509  Plantago erecta subsp. erecta T. C. Emmel 1964-3-15 1 San Mateo Woodside (expt'l area). Comment
  RSA246718  Plantago hirtella var. galeottiana Robert F. Thorne, Percy C. Everett 1965-8-1 35073 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  SEINET6205137  Plantago hookeriana var. californica L. S. Rose 1965-1 65056 San Mateo San Bruno Mtn, N end Comment
  UC1125643  Plantago lanceolata N. K. Carlson 1935-6-29 100 San Mateo 1.5 mi se Pescadero Pt.; Santa Cruz Quad. 91 Comment
  RSA176677  Plantago lanceolata John H. Thomas 1949-4-6 273 San Mateo 4 miles S of Daly city Comment
  UCSC007768  Plantago lanceolata Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  CDA34345  Plantago major E. Finley 1990-10-16 s.n. San Mateo Shoreline Blvd, Mountain View. 0 Comment
  UCD164599  Plantago major Peter Rubtzoff; Roman Gankin 1975-9-11 8371 San Mateo San Bruno Mountains. Pond NW of and across old Guadalupe Road from 'Saddle' area (which is located on N side of Guadalupe Canyon Parkway, W of Radio Road junction). Comment
  RSA18371  Plantago maritima Carl B. Wolf 1927-6-29 537 San Mateo Along coast south of Pebble Beach near Pescadero. Comment
  POM283861  Plantago maritima Lyman Benson 1930-6-14 2153 San Mateo San Gregorio. 30 Comment
  JEPS15530  Plantago maritima var. californica G. Thomas Robbins 1956-8-18 3736 San Mateo near mouth of Pomponio Creek Comment
  JEPS7154  Plantago maritima var. californica James G. Daly 1934-1 478 San Mateo mouth of San Gregorio Creek San Gregorio Creek Comment
  UC931954  Plantago maritima var. californica Verne Grant and Alva Grant 1946-6-23 7696 San Mateo s of Daly City; San Francisco Peninsula Comment
  UC1192029  Plantago subnuda Malcolm A. Nobs and S. Galen Smith 1949-8-26 1583 San Mateo about 1 mi s Half Moon Bay Comment
  RSA6413  Platystemon californicus var. californicus D. D. Keck 1932-5-6 1473 San Mateo Burlingame. Comment
  SJSU11900  Plectritis congesta S. H. Casey 1969-4-17 230 San Mateo Colma Canyon, SW slope San Bruno Mt 121 Comment
  JROH4244  Plectritis congesta subsp. brachystemon John Hunter Thomas 1979-5-10 19546 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC27137  Plectritis congesta subsp. nitida Amos Arthur Heller 1907-5-28 8578 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  JROH4251  Plectritis macrocera H. J. Dengler 1971-4-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. On serpentine grassland E. of Searsville Rocks in gully Comment
  JROH5684  Plectritis macrocera John Rawlings 2015-4-7 1462 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky ridge crest of Jasper Ridge 175 Comment
  CAS-BOT-BC260965  Pleuropogon californicus var. californicus George Oberlander 1950-6-3 614 San Mateo San Francisco Watershed Reserve Comment
  RSA135747  Pleuropogon californicus var. californicus James I. McMurphy 1906-5-8 s.n. San Mateo Road near head of Crystal Springs Lakes, by road from Woodside to Byrnes Store. Comment
  JROH5396  Poa annua John H. Thomas 1965-2-22 10551 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC188935  Poa annua Michener apr. 1891 118 San Mateo San Bruno Rd Comment
  CAS-BOT-BC254542  Poa douglasii J. H. Thomas 1965-5-1 10637 San Mateo At Pescadero Beach Comment
  CAS-BOT-BC246708  Poa howellii Roxana S. Ferris 1920-4-23 1951 San Mateo Santa Cruz Mountain Peninsula. Bridge in Alpine Road along Corte Madera Cr. 365 Comment
  JROH5411  Poa howellii John Rawlings 2012-5-1 1071 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill side of Road E on steep north-facing slope of the big inlet. 112 Comment
  JROH5419  Poa pratensis subsp. pratensis John Rawlings 2008-5-13 1000 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Ranger Bath, Searsville townsite 107 Comment
  CAS-BOT-BC243118  Poa secunda subsp. secunda W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Summit Springs, Kings Mountain Comment
  SJSU15966  Poa unilateralis subsp. unilateralis Toni Corelli, John Rawlings 2016-5-27 1844 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  JROH2862  Pogogyne serpylloides John Hunter Thomas 1981-4-23 20493 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC232897  Polemonium carneum A. D. E. Elmer 1903-7-1 4771 San Mateo Pilarcitos Stone Dam Comment
  UC23973  Polemonium carneum J. Burtt Davy 1895-4-20 1040 San Mateo Pilarcitos Comment
  JROH3219  Polygala californica Carol Zabel, Scott Lourie, Cindy Wilber 2001-6-2 43 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389685  Polygonum aviculare Jeanie Nieri 1953-2-3 23 San Mateo Growing three miles west of Hillsdale Comment
  CAS-BOT-BC413945  Polygonum aviculare subsp. aviculare E. M. Zeile 1921-7-31 s.n. San Mateo Salada Comment
  CAS-BOT-BC414107  Polygonum aviculare subsp. aviculare Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains. Reservoir Hill Comment
  CAS-BOT-BC414236  Polygonum aviculare subsp. depressum Ira L. Wiggins 1980-8-29 22251 San Mateo Sandy bed of San Francisquito Creek, 100--200 m upstream from Pope Street Bridge, Menlo Park Comment
  JEPS81636  Polygonum aviculare subsp. depressum J. C. Hickman 1981-7-21 1003 San Mateo Ano Nuevo Reserve; near center Comment
  CAS-BOT-BC109241  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach south of Pescadero. Comment
  CAS-BOT-BC109242  Polygonum paronychia Louis F. Pitelka 1974-5-28 s.n. San Mateo Bolsa Point, about 1 mile north of Pigeon Point and about 39 miles south of San Francisco. Comment
  RSA3888  Polygonum paronychia I. L. Wiggins 1929-7-4 3795 San Mateo Pescadero Beach Comment
  UCD100554  Polygonum patulum John Thomas Howell 1953-6-3 29057 San Mateo Bayshore Highway, Redwood City. Comment
  UC1191256  Polygonum punctatum Malcolm A. Nobs and S. Galen Smith 1949-8-25 1560 San Mateo Sharp Park; marshes Comment
  CAS-BOT-BC76904  Polypodium californicum Roxana S. Ferris 1921-4-7 2133 San Mateo Santa Cruz Mountain Peninsula - San Bruno Mt. 213 Comment
  HSC1135  Polypodium californicum L. S. Rose 1964-2-6 64001 San Mateo Kings Mtn. 610 Comment
  JROH75  Polypodium californicum John H. Thomas 1964-4-19 10313 San Mateo Jasper Ridge Biological Preserve, Stanford University. At Searsville end of ridge Comment
  CAS-BOT-BC76949  Polypodium californicum Elizabeth McClintock 1963-2-16 s.n. San Mateo San Bruno Mountain Comment
  JROH78  Polypodium californicum John H. Thomas 1970-1-1 15497 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC474210  Polypodium californicum H. F. Copeland 1928-2-26 985 San Mateo on cliffs above ocean Montara Comment
  UC440196  Polypodium scouleri R. L. Pendleton 1907-4-20 623 San Mateo Colma 152 Comment
  UC931949  Polypodium scouleri Verne Grant and Alva Grant 1946-8-30 7851 San Mateo ranch 1 mi s of Daly City (on Hwy. 5) 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
  UC203508  Polypogon interruptus A. D. E. Elmer July, 1903 4694 San Mateo Pilarcitos Stone Dam Comment
  RSA101028  Polypogon monspeliensis G. Oberlander 1949-7-24 312 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  UC1100375  Polypogon monspeliensis Malcolm A. Nobs and S. Galen Smith 1949-8-26 1609 San Mateo about 1 mi s Pigeon Point; s of Pigeon Point Comment
  UCD91304  Polypogon monspeliensis Beecher Crampton 1962-6-11 6488 San Mateo Northern city limits of Pacifica, State Hwy. 1 just s.w. of its junction with Skyline Blvd. Comment
  JROH4816  Polypogon viridis John Hunter Thomas 1982-7-2 21050 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  RSA0034024  Polystichum Peter Rubtzoff 1987-8-26 9844 San Mateo San Bruno Mountain, East Fork of Colma Creek Canyon. Comment
  SD27443  Polystichum aculeatum Kate O. Sessions 1879-1 San Mateo La Honda Comment
  CAS-BOT-BC72152  Polystichum californicum Ynez Henderson 1920-5-1 s.n. San Mateo Las Trancos Creek Comment
  CAS-BOT-BC72227  Polystichum dudleyi Kate O. Sessions s.n. San Mateo unspecified Comment
  JROH52  Polystichum dudleyi Ann Lambrecht 2005-10-26 22 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 2 on creek bank 60 m beyond first drainage past intersection of Trails 1 & 5. Comment
  UC718901  Polystichum dudleyi W. R. Dudley 1905-6-19 San Mateo cliffs near Camp on Pescadero Creek; Santa Cruz Peninsula, Santa Cruz Mts. Comment
  CAS-BOT-BC76612  Polystichum munitum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Base of Quarry 2 Comment
  CAS-BOT-BC76613  Polystichum munitum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain - Horseshoe Ridge Comment
  CHSC39836  Polystichum munitum Maxey-Jones 1928-4-21 San Mateo La Honda Redwoods. Comment
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Jul 7 2010
  CAS-BOT-BC166964  Polystichum munitum Peter Rubtzoff 1976-10-5 8905 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC76645  Polystichum munitum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain - Trillium Gulch Comment
  CAS-BOT-BC76646  Polystichum munitum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain - North Power Line Ridge area. Comment
  SEINET11714701  Polystichum munitum Unknown 1932-1 8922 San Mateo Kings Mt Comment
  UCD164339  Polystichum munitum Peter Rubtzoff 1976-10-5 8905 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  JROH3361  Portulaca oleracea John Hunter Thomas 1985-8-7 23708 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC813943  Potamogeton nodosus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9292 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC453833  Potamogeton nodosus H. L. Mason 1921-5-28 s.n. San Mateo Lagoon back of New Years Pt. Comment
  CAS-BOT-BC453834  Potamogeton nodosus L. R. Abrams; I. L. Wiggins 1939-6-3 435 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC453836  Potamogeton nodosus Ira L. Wiggins; Roxana S. Ferris 1939-8-2 9292 San Mateo Ano [Ano] Nuevo Point Comment
  CAS-BOT-BC454001  Potamogeton pectinatus W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Menlo Park Reservoir. Comment
  CAS-BOT-BC454002  Potamogeton pectinatus W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. E. twin-pond near Mussel Rock. Comment
  SEINET11664366  Potamogeton pusillus W. R. Dudley 1909-1 s.n. San Mateo small bay near club house, Crystal Springs Reservior, Santa Cruz Mountain Peninsula Comment
  SEINET11916088  Potentilla anserina Unknown 1930-1 9004 San Mateo Half Moon Bay 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
  CAS-BOT-BC516351  Prosartes hookeri M. N. Paulson 1915-4-1 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC516352  Prosartes hookeri C. F. Baker 1903-4-1 5052 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC516361  Prosartes hookeri Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo, San Bruno Mountain Comment
  SEINET12044826  Prosartes hookeri C. F. Baker 1903-1 5052 San Mateo Crystal Springs Lake Comment
  SEINET8907180  Prunella vulgaris subsp. lanceolata A. D. 1974-1 San Mateo Hwy. 35; ca. 4 mi. from Jct 35 & 92 610 Comment
  RSA217975  Prunella vulgaris var. lanceolata Phillip Wheeler 1965-6-20 s.n. San Mateo Adjacent to Radio Road Comment
  POM140371  Prunus emarginata C. F. Baker 1902-5-1 691 San Mateo Crystal Springs Lake. Comment
  UC12742  Prunus emarginata J. Burtt Davy 1895-4-20 1032 San Mateo Lake San Andreas Comment
  RSA187271  Prunus ilicifolia John H. Thomas 1954-5-28 4239 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  SD37658  Prunus virginiana var. demissa Edith A. Purer 1933-5-6 3628 San Mateo Alpine Road Comment
  CAS-BOT-BC356857  Pseudognaphalium californicum Josephine D. Randall 1907-7-23 47 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  JROH760  Pseudognaphalium californicum D. E. Breedlove 1971-5-31 19386 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH769  Pseudognaphalium californicum John Hunter Thomas 1983-7-20 22893 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC356860  Pseudognaphalium californicum W. R. Dudley 1898-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Comment
  CAS-BOT-BC356867  Pseudognaphalium californicum Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. East facing slope below parking lot Comment
  HSC23984  Pseudognaphalium californicum Mary Katherine Wicksten 1971-6-17 54 San Mateo Huddart Park on Chickadee Trail Comment
  CAS-BOT-BC357120  Pseudognaphalium luteoalbum John Thomas Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  CAS-BOT-BC357130  Pseudognaphalium luteoalbum L. R. Abrams; I. L. Wiggins 1939-6-3 431 San Mateo Ano Nuevo Point Comment
  JROH776  Pseudognaphalium luteoalbum John H. Thomas 1974-10-29 17649 San Mateo Jasper Ridge Biological Preserve, Stanford University; small peninsula created by drainage channel cut to accomodate water from Corte Madera Cr. Comment
  CAS-BOT-BC357508  Pseudognaphalium ramosissimum Janet Jones 1978-8-28 s.n. San Mateo Near Montara Comment
  CAS-BOT-BC361570  Pseudognaphalium stramineum L. R. Abrams; I. L. Wiggins 1939-6-3 428 San Mateo Ano Nuevo Point Comment
  JEPS49081  Pseudognaphalium stramineum Lewis S. Rose 1966-8-6 66079 San Mateo Colma Canyon San Bruno Mountain, Colma Canyon 121 Comment
  SBBG32247  Pseudognaphalium stramineum L. S. Rose 1966-8-6 66079 San Mateo San Bruno Mtn, Colma Cyn 121 Comment
  SD39789  Pseudognaphalium stramineum Edith A. Purer 1933-7-27 5359 San Mateo Pigeon Point Comment
  UC31976  Pseudognaphalium stramineum F. P. McLean 1874-6-1 San Mateo Pescadero Comment
  CAS-BOT-BC361568  Pseudognaphalium stramineum Lewis S. Rose 1966-8-6 66079 San Mateo San Bruno Mountain, Colma Canyon 121 Comment
  SD28045  Pseudognaphalium stramineum Carl B. Wolf 1927-6-15 San Mateo Skyline Boulevard, south of San Francisco Comment
  CAS-BOT-BC85914  Pseudotsuga menziesii Miss O. Boring 1897-8-31 s.n. San Mateo Santa Cruz Peninsula, King's Mt. Comment
  CAS-BOT-BC85911  Pseudotsuga menziesii E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mt., west slope 792 Comment
  JEPS27364  Psilocarphus tenellus Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7624 San Mateo just e KRON television tower and station (below and se of end of paved ridge-top road on Guadalupe Valley side of summit San Bruno Mountain); on Guadalupe Valley side of summit of San Bruno Mountain 304 Comment
  JROH1192  Psilocarphus tenellus John Hunter Thomas 1986-5-6 24006 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG28043  Psilocarphus tenellus L. S. Rose 1933-5-3 33140 San Mateo Montara Comment
  CAS-BOT-BC362017  Psilocarphus tenellus R. S. Ferris 1925-5-1 s.n. San Mateo Selah Chamberlain Residence, Woodside Comment
  JROH12  Pteridium aquilinum var. pubescens John H. Thomas 1974-10-12 17624 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
  CAS-BOT-BC460839  Pyrola aphylla W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Peninsula: 4000 feet above Iverson's; Butano Ridge Comment
  SJSU10132  Quercus agrifolia A. W. Jacobs 1936-12-18 San Mateo Jasper Ridge 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
  SEINET9326838  Quercus agrifolia Unknown 1938-11-6 San Mateo Woodside, hill slopes. Comment
  CAS-BOT-BC62304  Quercus chrysolepis Phillip C. Wheeler 1965-5-25 s.n. San Mateo San Bruno Mountain, Buckeye Canyon Comment
  CAS-BOT-BC62340  Quercus chrysolepis LeRoy Abrams 1906-10-7 s.n. San Mateo Portola, Santa Cruz Mtns. Comment
  UCD45583  Quercus chrysolepis John M. Tucker 1941-4-6 209 San Mateo On ridge north of Finny Creek, directly inland from Ano Nuevo Pt., San Mateo County, California. Comment
  JROH2470  Quercus douglasii John H. Thomas 1955-5-6 5017 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH2476  Quercus douglasii John Hunter Thomas 1988-4-6 24374 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside below dam. Comment
  JROH2487  Quercus durata var. durata John H. Thomas 1974-6-30 17462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2488  Quercus durata var. durata John H. Thomas 1974-8-3 17502 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC94266  Quercus garryana Peter H. Raven 1949-6-13 824 San Mateo Belmont 121 Comment
  JROH2499  Quercus kelloggii K. Hoffough 1929-4-27 277 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5942  Quercus kelloggii John Rawlings, Sara Timby 2017-3-3 1964 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 96 Comment
  LA205320  Quercus kelloggii David D. Keck; 1932-3-6 1395 San Mateo Santa Cruz Mountains, La Honda road above Searsville Lake Comment
  RSA477345  Quercus kelloggii L. H. Jones 1909-3-3 s.n. San Mateo King's Mountain Road, Stanford University. 107 Comment
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Sep 22 2011
  UC1135674  Quercus kelloggii C. M. Belshaw 1935-1-25 1463 San Mateo 4.5 mi w Woodside; Santa Cruz Quad. 609 Comment
  SD38233  Quercus lobata Delzie Demaree 1929-10-17 3678 San Mateo King's Mountain Comment
  SEINET12034640  Quercus lobata Unknown 1929-1 7290 San Mateo Kings Mtn Comment
  RSA81914  Quercus parvula var. shrevei E. K. Balls, P. C. Everett 1953-10-16 18681 San Mateo Hwy 5, 30.8 miles southeast of San Francisco-San Mateo county line. 762 Comment
  UCD47153  Quercus parvula var. shrevei Warren G. Roberts 1981-5-17 s.n. San Mateo In ground at Yerba Buena Nursery, 19500 Skyline Blvd. (4.5 miles south of La Honda), Redwood City, San Mateo County, California. Comment
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Oct 15 2013
  UCD47590  Quercus wislizeni John M. Tucker 1994-9-9 s.n. San Mateo Huddart Park, San Mateo County. Comment
  POM270261  Quercus wislizeni var. wislizeni Lyman Benson 1932-8-1 4028 San Mateo Stanford University, Santa Cruz Mt. Range, Corte Madera Creek watershed. 122 Comment
  POM268420  Ranunculus californicus Lyman Benson 1931-3-15 s.n. San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  UC1176930  Ranunculus californicus Peter H. Raven 1950-4-30 1955 San Mateo Montara; slopes facing ocean 9 Comment
  POM268421  Ranunculus californicus Lyman Benson 1930-3-20 1953 San Mateo S San Francisco. 91 Comment
  RSA100978  Ranunculus californicus G. Oberlander 1949-4-2 20 San Mateo Top of Sweeney ridge, San Francisco Watershed Reserve 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
  JEPS127782  Ranunculus californicus var. californicus Adam C. Schneider with C. Matt Guilliams 2013-3-9 48 San Mateo Comment
  CAS-BOT-BC378541  Ranunculus californicus var. californicus Ira L. Wiggins 1929-3-24 3381 San Mateo on road to Searsville Lake, back of Stanford University Comment
  CAS-BOT-BC378542  Ranunculus californicus var. californicus Ira L. Wiggins 1928-4-14 2903 San Mateo Alpine Creek Road Comment
  RSA132486  Ranunculus californicus var. cuneatus John H. Thomas 1950-3-19 1307 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
  SBBG71850  Ranunculus californicus var. cuneatus J. M. Tucker 1941-4-6 210 San Mateo Pigeon Point Comment
  JROH3485  Ranunculus hebecarpus John Hunter Thomas 1983-4-21 21638 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA14966  Ranunculus hebecarpus L. S. Rose 1935-5-1 35136 San Mateo Redwood City Comment
  SEINET12086941  Ranunculus hebecarpus P. R. Hichborn 1920-1 52 San Mateo near Searsville Lake Comment
  CAS-BOT-BC83426  Ranunculus lobbii W. R. Dudley 1964-4-22 s.n. San Mateo Santa Cruz Mountain Peninsula. Corte Madera Creek. Along New Grade Road. 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
  UC854390  Ranunculus orthorhynchus var. bloomeri Lewis S. Rose 1937-4-30 37341 San Mateo Brisbane 6 Comment
  POM282733  Ranunculus orthorhynchus var. bloomeri L. S. Rose 1934-3-11 35051 San Mateo Wet fields, Visitacion Valley Comment
  UCR49681  Ranunculus pusillus W. R. Dudley 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. On road between Woodside and Byrme's Store 119 Comment
  CAS-BOT-BC74341  Raphanus sativus Javier Penalosa 1963-2-23 2663 San Mateo San Bruno Mountain. Ravine south of Crocker Avenue. 213 Comment
  OBI37072  Raphanus sativus M. J. Erwin 1983-11-11 18 San Mateo Around Daggett residence, 100 yds W of Old Canada Rd, within property limits of Filoli Center, Canada Rd, Woodside Comment
  JROH3556  Rhamnus crocea H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA207744  Rhamnus crocea Carl B. Wolf; 1928-3-16 1540 San Mateo Jasper Ridge, near Searsville Lake Comment
  POM282946  Rhamnus crocea Lyman Benson 1937-7-25 8473 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  POM282947  Rhamnus crocea Lyman Benson 1930-5-21 s.n. San Mateo Lake Searsville. 152 Comment
  SBBG28984  Rhamnus crocea C. B. Wolf 1928-3-16 San Mateo Jasper Ridge, near Searsville Lake Comment
  POM243723  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1927-12-31 1472 San Mateo 1/2 way up Kings Mt. Comment
  CAS-BOT-BC437975  Ribes E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge Comment
  JROH2634  Ribes aureum var. gracillimum Carol Zabel 1990-3-30 38 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12 at last bridge. Comment
  POM274752  Ribes californicum Lyman Benson 1928-4-21 736 San Mateo North base of Searsville ridge; among redwoods. Stanfornd University. Santa Cruz mtn ranges. San Francisquito Cr. 91 Comment
  RSA15313  Ribes californicum Carl B. Wolf 1927-4-3 284 San Mateo Los Troncos Creek, 2 miles back of Stanford University. Comment
  RSA18264  Ribes californicum Carl B. Wolf 1927-6-27 459 San Mateo Los Troncos Creek, 2 miles back of Stanford University. Comment
  CAS-BOT-BC93012  Ribes californicum var. californicum Margaret A. Barry 1938-4-21 224 San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC93013  Ribes californicum var. californicum George Oberlander 1950-3-18 527 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  CAS-BOT-BC173473  Ribes malvaceum A. D. E. Elmer 1903-3-1 4535 San Mateo Portola Comment
  CAS-BOT-BC173474  Ribes malvaceum A. D. E. Elmer 1903-3-1 4750 San Mateo Portola Comment
  CAS-BOT-BC173476  Ribes malvaceum W. R. Dudley 1893-1-1 s.n. San Mateo Near Belmont Comment
  SEINET3558789 Image available Ribes malvaceum Lewis S. Rose 1933-3-2 33006 San Mateo Belmont. Comment
  SJSU279  Ribes malvaceum H. W. Marion 1936-3-8 San Mateo 0.25 mi E of Searsville L, near Stanford Univ Comment
  RSA0021676  Ribes malvaceum Lyman Benson 1931-1-25 2576 San Mateo Continuation of Page Mill Road toward La Honda. Stanford University, Santa Cruz Mountain Range. 244 Comment
  JROH2661  Ribes malvaceum var. malvaceum J. H. Thomas 1959-1-17 7513 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  CAS-BOT-BC212816  Ribes menziesii Roxana S. Ferris 1920-4-23 1950 San Mateo Strawberry Bend, El Corte de Madera Creek 121 Comment
  CAS-BOT-BC212819  Ribes menziesii L. R. Abrams 1916-4-22 5580 San Mateo Pilarcitos Canyon, near the little upper lake Comment
  CAS-BOT-BC212825  Ribes menziesii Josephine D. Randall 1901-6-8 366 San Mateo Portola Valley Comment
  CAS-BOT-BC212835  Ribes menziesii J. H. Thomas 1962-3-24 9839 San Mateo Isenberg Ranch near Langley Hill. 548 Comment
  CAS-BOT-BC212844  Ribes menziesii W. & I. Knight 1963-7-14 s.n. San Mateo Upper rim, above Quarry, San Bruno Mountains Comment
  CAS-BOT-BC212846  Ribes menziesii L. R. Abrams 1912-3-30 4999 San Mateo Pescadero Creek near Iverson's Comment
  UC11613  Ribes menziesii J. Burtt Davy 1895-4-21 1059 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC212813  Ribes menziesii W. R. Dudley 1898-4-15 s.n. San Mateo Unspecified Comment
  CAS-BOT-BC212814  Ribes menziesii William Russel Dudley 1894-4-1 s.n. San Mateo Above St. Dennis Church, Searsville Comment
  CAS-BOT-BC144610  Ribes sanguineum var. glutinosum W. R. Dudley 1904-4-7 s.n. San Mateo 1/4 mile above Judge Allen's near Portola Comment
  CAS-BOT-BC144640  Ribes sanguineum var. glutinosum R. Bacigalupi 1922-3-1 s.n. San Mateo Pescadero Creek Comment
  JROH2677  Ribes sanguineum var. glutinosum John H. Thomas 1975-5-2 17853 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2678  Ribes sanguineum var. glutinosum John Hunter Thomas 1977-6-16 18792 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along raised causeway. Comment
  JROH2680  Ribes sanguineum var. glutinosum John Hunter Thomas 1981-4-5 20274 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  UC921843  Ribes sanguineum var. glutinosum Lillian Lockwood 1908-3-9 San Mateo Coal Mine Ridge Comment
  UCSB17072  Ribes sanguineum var. glutinosum 1963-4-9 San Mateo Jasper Ridge; 3 miles southwest of Stanford Campus; between Santa Clara Valley and main front of Santa Cruz Mountains 137 Comment
  RSA0019103  Ribes sanguineum var. glutinosum I. L. Wiggins 1929-3-23 3371 San Mateo Road to Mud Lake, near Stanford University Comment
  RSA0019113  Ribes sanguineum var. glutinosum L. R. Abrams, W. W. Eggleston 1924-3-23 19562 San Mateo Coast Range, near Palo Alto. 60 Comment
  UC676728  Ribes sanguineum var. glutinosum Reed C. Rollins 1941-3-16 2945 San Mateo about 35 mi s San Francisco (w slope of mountains); Santa Cruz Mts. Comment
  CAS-BOT-BC207160  Ricinus communis J. H. Thomas 1960-11-11 8925 San Mateo Along Skyline Blvd., 1.1 mile S of intersection of Skyline Blvd. and Mill brae Avenue. Comment
  POM204034  Rigiopappus leptocladus L. S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
  CAS-BOT-BC341025  Robinia pseudoacacia L. R. Abrams 1921-5-3 s.n. San Mateo Prop. Tallocks garden, Stanford University Comment
  CDA9435  Romanzoffia californica D. G. Kelch 2002-5-13 s.n. San Mateo Pilarcitos Canyon, SF watershed. 0 Comment
  JEPS125913  Romulea rosea var. australis Dean W. Taylor 2002-3-20 17952 San Mateo Franklin Point, along path to the coastal bluff from the parking area on Hwy 1. Comment
  UC1736041  Romulea rosea var. australis Dean W. Taylor 1995-3-14 14751 San Mateo Buri Buri Ridge; west of Hillsborough; west of Skyline Blvd.; San Francisco Fish & Game Refuge, San Francisco Water Department lands 152 Comment
  UCR148006  Rorippa nasturtium-aquaticum Robert E. Preston 2001-5-30 1535 San Mateo c. 9 mi NNW of Boulder Creek 305 Comment
  CAS-BOT-BC146690  Rosa gymnocarpa Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Bitter-cherry Ridge Comment
  CAS-BOT-BC146700  Rosa gymnocarpa John H. Thomas 1961-5-14 9367 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek, San Francisco Watershed Reserve 152 Comment
  CAS-BOT-BC5991  Rosa piscatoria Adolph Daniel Edward Elmer 1903-5-1 4923 San Mateo On the Pescadero Creek, Iverson's Place Comment
  CAS-BOT-BC156594  Rubus bifrons J. H. Thomas 1963-9-11 10263 A San Mateo San Bruno Mountain. Near intersection of Guadalupe Rd. and South Hill Blvd. Comment
  CAS-BOT-BC156645  Rubus bifrons Phillip C. Wheeler 1965-7-7 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC152831  Rubus parviflorus W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Ridge - Santa Cruz Peninsula Comment
  CAS-BOT-BC152832  Rubus parviflorus Josephine D. Randall 1907-7-28 345 San Mateo Iverson's near Peter's Creek - Santa Cruz Peninsula Comment
  CAS-BOT-BC152868  Rubus parviflorus Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Romanzoffia ravine - San Bruno Mountain Comment
  CAS-BOT-BC152870  Rubus parviflorus Walter Knight; Irja Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  JROH3770  Rubus parviflorus John H. Thomas 1970-5-16 15632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3776  Rubus parviflorus John Hunter Thomas 1985-5-22 23683 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC706966  Rubus parviflorus Ira L. Wiggins 1939-8-12 9296 A San Mateo about 5 mi inland from coast (along banks of Gazos Creek); Gazos Creek Comment
  UCSB11517  Rubus parviflorus Olson, Jim 1962-4-15 San Mateo Junction of Portola State Park Road and Camp Pomponio Road; 20 miles south of La Honda; 609 Comment
  UCSB44344  Rubus spectabilis Brownell, Kathleen 1979-3-27 San Mateo Gazoos Road, 0.7 miles east of Highway 1; Near Butano State Park; Western foothills of the Santa Cruz Mountains; 45 Comment
  CAS-BOT-BC157066  Rubus ursinus Ira L. Wiggins 1925-4-1 1660 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  CAS-BOT-BC157069  Rubus ursinus Margaret A. Barry 1938-4-21 243 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC157088  Rubus ursinus Robert Robertson 1954-5-1 129 San Mateo Near San Gregorio Creek 6 Comment
  CAS-BOT-BC157098  Rubus ursinus John Thomas Howell 1938-6-4 13889 San Mateo Burlingame Comment
  CAS-BOT-BC157105  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CAS-BOT-BC157111  Rubus ursinus John Thomas Howell 1938-6-4 13890 San Mateo Burlingame Comment
  CAS-BOT-BC157112  Rubus ursinus Javier Penalosa 1963-2-23 2650 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  UCSB17156  Rubus ursinus Schulte, John 1963-4-14 San Mateo Jasper Ridge 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CHSC39822  Rumex acetosella Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH3295  Rumex acetosella John Hunter Thomas 1985-5-21 23667 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Whisky Hill Gate. Comment
  CAS-BOT-BC422291  Rumex californicus John H. Thomas 1966-5-25 11636 San Mateo Menlo Park, near Southern Pacific train station. Comment
  JROH3304  Rumex conglomeratus John Hunter Thomas 1989-6-13 24768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5665  Rumex conglomeratus John Rawlings 2014-8-12 1273 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry San Francisquito Creek, between low flow crossing and downstream serpentine outcrop 79 Comment
  JROH3297  Rumex conglomeratus John H. Thomas 1974-6-27 17452 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the low flow crossing below Searsville Dam. Comment
  JROH3298  Rumex conglomeratus John H. Thomas 1974-6-27 17452 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the low flow crossing below Searsville Dam. Comment
  CAS-BOT-BC421573  Rumex crassus Alice Eastwood 1937-7-25 18887 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC421574  Rumex crassus Alice Eastwood; John Thomas Howell 1938-6-26 6072 San Mateo Waddell Creek Comment
  CAS-BOT-BC421576  Rumex crassus Saichi Kawahara 1968-6-15 434 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 3 Comment
  UCSC007778  Rumex crassus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC433361  Rumex crispus Josephine D. Randall 1907-7-23 291 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake. Comment
  CAS-BOT-BC433362  Rumex crispus George Oberlander 1949-7-30 328 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  CAS-BOT-BC433541  Rumex fueginus Roxana S. Ferris 1917-10-19 729 San Mateo Margin of Crystal Springs Lake Comment
  JROH2211  Rupertia physodes John H. Thomas 1971-5-30 15955 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2219  Rupertia physodes John Hunter Thomas 1980-5-6 19922 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC279597  Ruppia maritima unknown San Mateo Laguna de Salada Comment
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Jan 2 2010
  UC279598  Ruppia maritima W. A. Setchell San Mateo Laguna de Salada 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
  JROH1719  Sagina apetala D. E. Breedlove 1971-5-5 19324 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Francisquito Creek, 500 yards below Searsville Dam Comment
  SEINET11941059  Salicornia depressa Unknown 1933-1 10460 San Mateo Shanty Town, near Belmont, San Fransisco Bay Comment
  JEPS59843  Salicornia virginica unknown 1925-5-28 18 San Mateo Tunitas Comment
  OBI75779  Salix exigua Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 122 Comment
  UCD110944  Salix exigua Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake. 121 Comment
  JROH3845  Salix exigua var. hindsiana John H. Thomas 1976-10-16 18403 San Mateo Jasper Ridge Biological Preserve, Stanford University. Now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH3847  Salix exigua var. hindsiana John Hunter Thomas 1981-4-23 20494 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake 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
  JROH3873  Salix lasiandra var. lasiandra John H. Thomas 1971-4-21 15768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC107131  Salix lasiolepis C. R. Ball; G. W. Hendry 1931-2-22 14 San Mateo San Gregorio, near sea level - in arroyo near San Gregorio Creek, 100 m. from ocean Comment
  CAS-BOT-BC107132  Salix lasiolepis Ira L. Wiggins 1976-4-20 22178 San Mateo Along N bank of San Francisquito Creek, near Pope Street Bridge, Menlo Park 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
  CAS-BOT-BC166959  Salix lasiolepis Peter Rubtzoff 1976-3-14 8447 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  RSA178599  Salix lasiolepis L. R. Abrams 1915-3-13 5162 San Mateo Near jct of San Francisquito and Los Trancos creeks. About 2 miles from Stanford University. Comment
  RSA184897  Salix lasiolepis L. S. Rose 1965-3-8 65004 San Mateo Searsville Lake. 122 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
  CAS-BOT-BC108258  Salix lasiolepis var. bigelovii John H. Thomas 1974-5-7 17316 San Mateo San Bruno Mountain - along Guadalupe Parkway opposite school. Western side of mountain. Comment
  CDA14167  Salix lasiolepis var. bigelovii G. F. Hrusa, B. Meese 1997-2-17 13621 A San Mateo Ano Nuevo State Park; End of Ano Nuevo Pt. Comment
  CAS-BOT-BC124483  Salix lasiolepis var. lasiolepis Javier Penalosa 1963-3-30 2762 San Mateo Guadalupe Valley Comment
  CAS-BOT-BC124484  Salix lasiolepis var. lasiolepis W. R. Dudley 1894-7-11 s.n. San Mateo San Francisquito Cr. near Cedro Cottage, Stanford University Comment
  CAS-BOT-BC124486  Salix lasiolepis var. lasiolepis W. R. Dudley 1902-5-1 s.n. San Mateo Near Iverson's, Peter's Creek Comment
  CAS-BOT-BC124489  Salix lasiolepis var. lasiolepis James McMurphy 1906-3-9 s.n. San Mateo Kings Mountain 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-BC124494  Salix lasiolepis var. lasiolepis Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  CAS-BOT-BC129069  Salix scouleriana A. D. E. Elmer 1903-6-1 4864 San Mateo Iverson's Place on the Pescadero Comment
  UCR142837  Salix scouleriana L. S. Rose 1934-2-10 34025 San Mateo Coast Range, Skyline Blvd. 4 miles south of Kings Mountain 701 Comment
  CAS-BOT-BC129072  Salix scouleriana W. R. Dudley 1900-3-18 s.n. San Mateo Below Jersey Farm near Baden - Santa Cruz Peninsula Comment
  CAS-BOT-BC126517  Salix sitchensis W. R. Dudley 1900-3-17 s.n. San Mateo Below Pilar Point Comment
  RSA3918  Salix sitchensis W. R. Dudley 1904-3-7 69 San Mateo Bear Gulch. Santa Cruz Mtns. Santa Cruz Peninsula. 213 Comment
  SBBG40540  Salsola soda W. Anderson 1968-8-16 San Mateo W end of Dumbarton Bridge Comment
  RSA15302  Salvia columbariae Carl B. Wolf 1927-4-3 s.n. San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  SEINET946766  Salvia mexicana var. major Betsy Clebsch 1983-1 s.n. San Mateo Planted in garden on Big Swing Comment
  JEPS29418  Salvia spathacea L. R. Heckard 1961-7-16 1266 San Mateo just below San Bruno Mt. summit (sw of transmitting station KQED); San Bruno Mt. 304 Comment
  UC1219867  Salvia spathacea John H. Thomas 1961-5-7 9299 San Mateo San Bruno Mountain; n part of San Mateo County 304 Comment
  SJSU11396  Salvia spathacea G. I. Tourtlotte 1968-5-19 San Mateo S side of Guadalupe Canyon, San Bruno Mt Comment
  RSA0034073  Sambucus Peter Rubtzoff 1987-8-26 9840 San Mateo San Bruno Mountain, Saddle area on N side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road. Upper part of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC246014  Sambucus nigra subsp. caerulea Fred Hemphill 1973-5-6 754 San Mateo North of Malabar Road and Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC246019  Sambucus nigra subsp. caerulea Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Bottom of Quarry 4 and west ravine, San Bruno Mountain Comment
  JROH1671  Sambucus nigra subsp. caerulea John H. Thomas 1973-6-15 16853 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC004609  Sanicula Randall Morgan 1994-3-12 2153 San Mateo Lower N slope of Coal Mine Ridge, not far from Alpine Road Comment
  UCSC005903  Sanicula Randall Morgan 1983-2-15 s.n. San Mateo From large extended population in small ravine between El Corte Madera Creek and Bogess Creek (N of San Gregorio Rd.) Comment
  POM133576  Sanicula arctopoides A. D. E. Elmer 1900-04 2365 San Mateo Kings Mountain. Comment
  SBBG32454  Sanicula arctopoides L. S. Rose 1965-3-25 65012 San Mateo N end San Bruno Mtns 121 Comment
  JROH325  Sanicula bipinnatifida John Hunter Thomas 1977-4-28 18561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306543  Sanicula bipinnatifida A. D. E. Elmer April, 1903 San Mateo Lake San Andreas Comment
  UCD127932  Sanicula bipinnatifida R. E. Dengler 1960-4-14 33 San Mateo Jasper Ridge, Stanford Biological Reserve. 121 Comment
  CAS-BOT-BC166810  Sanicula crassicaulis Peter Rubtzoff 1976-6-30 8712 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CHSC45763  Satureja douglasii Steven Triano 1988-5-24 198 San Mateo Ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  POM283188  Satureja douglasii Lyman Benson 1930-5-26 s.n. San Mateo Stanford University. Lake Searsville. 152 Comment
  RSA218024  Satureja douglasii Walter Knight, Elizabeth McClintock, I. Knight 1963-9-2 s.n. San Mateo San Bruno Mountains; Power Line Ridge. Comment
  JROH356  Scandix pecten-veneris John Hunter Thomas 1981-5-14 20578 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  RSA320754  Schedonorus arundinaceus Robert A. Norris 1984-5-9 4729 San Mateo By Olivet Memorial Park Throughway, Colma. Comment
  RSA790260  Schedonorus arundinaceus Peter Rubtzoff 1977-6-21 9060 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction northwest of Fog Forest. Comment
  JROH4413  Schoenoplectus acutus var. occidentalis John H. Thomas 1967-5-31 12930 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake. Comment
  SJSU1654  Schoenoplectus acutus var. occidentalis L. S. Chan 1955-5-29 112 San Mateo freshwater pond near San Gregorio Beach Comment
  RSA10409  Schoenoplectus californicus Carl B. Wolf 1927-6-15 2165 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  POM265000  Schoenoplectus pungens I. L. Wiggins 1928-4-22 2947 San Mateo Moss Beach Comment
  UC75027  Scirpus cernuus Dr. E. B. Copeland 1903-6-15 3315 San Mateo Montara Point Comment
  JEPS62103  Scoliopus bigelovii Inez Smith Mar. 1915 San Mateo Hillsboro Comment
  UC142703  Scoliopus bigelovii Alice Eastwood 1902-2-28 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC519003  Scoliopus bigelovii L. R. Abrams 1902-3-16 2283 San Mateo Kings Mountain Comment
  CAS-BOT-BC519004  Scoliopus bigelovii George Oberlander 1949-4-17 87 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC519006  Scoliopus bigelovii W. R. Dudley 1895-3-5 s. n. San Mateo Kings Mt Comment
  RSA299413  Scoliopus bigelovii Elsa Kraeger 1926-2-21 s.n. San Mateo N of La Honda. Comment
  SEINET12050509  Scoliopus bigelovii F. H. Utech 1988-1 88 -040 San Mateo 2.6 mi from junction of Kings Mt. Road & CA 35 on former enroute to Woodside 350 Comment
  SEINET12050532  Scoliopus bigelovii F. H. Utech 1988-1 88 -142 San Mateo 0.5 mi from jct of Kings Mt. Rd & CA 35 on former enroute to Woodside, Skyline Hiking Trail & jct 580 Comment
  JROH5460  Scribneria bolanderi John Rawlings 2007-3-23 1034 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road F, Serpentine, about 50 m. nw of the oak island. 178 Comment
  CHSC57003  Scrophularia californica subsp. californica Steven Triano 1988-5-24 179 San Mateo Along w side of Old La Honda Road ca 0.8 mi s of Portola Road and 4.0 mi s of Woodside. 201 Comment
  UCR121556  Scrophularia californica subsp. californica George K. Helmkamp, E. A. Helmkamp 1999-6-28 4980 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  JROH5752  Scutellaria tuberosa L. Nordby 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Oak woodland just west of the serpentine grasslands on the top of Jasper Ridge Comment
  CAS-BOT-BC59076  Sedum spathulifolium J. H. Thomas 1974-5-9 17333 San Mateo San Pedro Valley, Northern Part of county, inland from Pacifica. 152 Comment
  CAS-BOT-BC59270  Sedum spathulifolium W. R. Dudley 1894-4-1 s.n. San Mateo San Mateo Reservoir. Comment
  CAS-BOT-BC363403  Senecio aronicoides George Oberlander 1950-5-28 994 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  JROH1215  Senecio aronicoides W. R. Dudley 1894-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Dam Comment
  JROH1217  Senecio aronicoides John H. Thomas 1958-5-10 7163 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1220  Senecio aronicoides John H. Thomas 1969-5-28 15082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC363395  Senecio aronicoides Le Roy Abrams 1902-5-4 2398 San Mateo Hills back of Redwood Comment
  JROH1218  Senecio aronicoides John H. Thomas 1961-5-5 9219 San Mateo Jasper Ridge Biological Preserve, Stanford University; at NW end of ridge 152 Comment
  RSA0013330  Senecio aronicoides A. D. E. Elmer 1903-05 4508 San Mateo San Bruno Hills. Comment
  SJSU5433  Senecio aronicoides G. I. Tourtlotte 1968-5-5 San Mateo N end Sawyer Camp Rd near Crystal Springs Comment
  CAS-BOT-BC363737  Senecio hydrophilus George Oberlander 1950-5-28 994 San Mateo San Francisco Watershed Reserve. Upper Crystal Springs Lake Comment
  CAS-BOT-BC363759  Senecio integerrimus L. Roush; G. Kimber 1918-5-7 s.n. San Mateo Sandstone Quarry Comment
  JROH688  Senecio minimus Toni Corelli 2008-9-3 351 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek, northwest of junction of Road G and H 83 Comment
  JROH1226  Senecio vulgaris John H. Thomas 1973-4-14 16558 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA34046  Sequoia sempervirens D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .156 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  POM176867  Sequoia sempervirens E. G. Dudley 1904-1-21 74 San Mateo Santa Cruz Peninsula: Canada de Raymundo, Santa Cruz Mountains 274 Comment
  RSA181221  Sequoia sempervirens John H. Thomas 1964-11-29 10542 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto; along San Francisquito Creek below dam. Comment
  SEINET10612347  Sequoia sempervirens H. Mount 1908-3-28 Mount s.n. 1908 San Mateo Kings Mountain, vicinity of woodside. From the Herbarium of Leland Stanford Jr. University. Comment
  SEINET6841677  Sequoia sempervirens R. A. Evers, Clara V. Evers 1975-8-24 115029 San Mateo Trailer Villa, Redwood City. Comment
  SEINET3243948  Setaria parviflora John Thomas Howell 1957-1 32805 San Mateo Holy Cross Cemetary, San Mateo Co. Comment
  UCR121586  Sherardia arvensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4965 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
  CHSC57021  Sidalcea diploscypha Josephine Boyd 1988-5-5 San Mateo Ca 500 ft se of the twin topped peak located ca 0.4 mi e of the jct. between Hwy. 280 and Edgewood Road in Redwood City. 222 Comment
  SEINET7097929  Sidalcea malviflora 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
  UC1589119  Sidalcea malviflora W. Roderick 1961-1-15 61 .012 San Mateo 2.6 mi n Kings Mt. Rd. (nw of Woodside, Cahil Ridge on Skyline Blvd., Highway 5); nw of Woodside, Cahil Ridge on Skyline Blvd Comment
  SD39303  Sidalcea malviflora Marie Cummings 1933-5-8 3733 San Mateo Woodside Road Comment
  POM282902  Sidalcea malviflora subsp. malviflora Lyman Benson 1930-4-6 2044 San Mateo Moss Beach. West slope. 15 Comment
  RSA187474  Sidalcea malviflora subsp. malviflora John H. Thomas 1964-4-30 10360 San Mateo San Bruno Mtn in northern part. Northern Coastal Scrub of Munz and Keck 305 Comment
  UC1327248  Sidalcea malviflora subsp. malviflora John T. Doyen 1966-3-28 29 San Mateo near Radio Towers at top (San Bruno Mountain); , near Radio Towers at top Comment
  UC18911  Sidalcea malviflora subsp. malviflora Ivar Tidestrom 1894-3-22 San Mateo Comment
  CAS-BOT-BC386858  Silene gallica H. A. Dutton 1900-4-29 s.n. San Mateo Woodside Serpentine Comment
  JROH1737  Silene gallica John Hunter Thomas 1982-5-18 20930 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road along SLAC fence near low-flow crossing Comment
  RSA191939  Silene scouleri R. F. Thorne, Percy C. Everett 1963-6-9 32235 San Mateo On top of San Bruno Mountain. 335 Comment
  UC852949  Silene scouleri subsp. grandis Alice Eastwood 1912-6-10 328 San Mateo Millbrae Comment
  CAS-BOT-BC389898  Silene scouleri subsp. scouleri Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC175276  Silene verecunda Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo Grassland near Summit. San Bruno Mountains Comment
  UCR101612  Sisyrinchium bellum George K. Helmkamp, E. A. Helmkamp 1998-5-16 3746 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  JROH4440  Sisyrinchium bellum John H. Thomas 1964-4-19 10322 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near Searsville end of ridge Comment
  UC518005  Smilacina stellata Lewis S. Rose 1933-4-9 33070 San Mateo Belmont 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
  UCD126930  Solanum douglasii E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains near San Francisco County Line, 0.5 mile from Summit Loop trailhead on Guadalupe Canyon Road. 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-BC58477  Solanum umbelliferum N. Cahill 1975-1-18 395 San Mateo Near the intersection of Canada and Edgewood Rds, about 3 mi westward from Redwood City. Comment
  JROH4189  Solanum umbelliferum John H. Thomas 1968-3-17 14192 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC157037  Solanum umbelliferum A. Menzies; B. Menzies 1965-3-14 s.n. San Mateo South Power Line Ridge Comment
  JROH4195  Solanum umbelliferum John Hunter Thomas 1989-5-11 24732 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge on causeway, bridge separates two parts of lake Comment
  NY820593  Solanum umbelliferum D. Demarée 1932-4-9 8981 San Mateo Los Troncos Woods Comment
  SEINET7262166 Image available Solanum umbelliferum S. B. Snow 1907-2-18 16 San Mateo Jasper Ridge Comment
  UCSC007782  Solanum umbelliferum Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  RSA133955  Solidago canadensis subsp. elongata John H. Thomas 1959-8-16 8065 San Mateo About two miles southwest of Pescadero. 61 Comment
  SD27769  Solidago canadensis subsp. elongata Carl B. Wolf 1927-6-29 568 San Mateo on the coast 3 mi. S. of San Gregorio. Comment
  CAS-BOT-BC365537  Solidago elongata J. H. Thomas 1959-8-16 8065 San Mateo About 2 miles SW of Pescadero 60 Comment
  JEPS32447  Solidago elongata W. L. Jepson 1910-8-18 4163 San Mateo Butano Cr Comment
  LA203952  Solidago elongata Lewis B. Rose; 1931-9-19 San Mateo Kings Mt Comment
  SD38299  Solidago spathulata Edith A. Purer 1932-7-18 San Mateo Comment
  CAS-BOT-BC365188  Solidago velutina subsp. californica Irja Knight; Walter Knight 1963-10-7 333 San Mateo San Bruno Mountain. Cow Trough Ravine Comment
  CAS-BOT-BC365924  Soliva sessilis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Peninsula. Near Pescadero Creek Comment
  CAS-BOT-BC365926  Soliva sessilis John H. Thomas 1958-3-19 7062 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC365929  Soliva sessilis John H. Thomas 1961-5-7 9262 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC365936  Soliva sessilis J. H. Thomas 1954-6-11 4283 San Mateo About 0.25 miles north of Pigeon Point Light House Comment
  CAS-BOT-BC353415  Soliva sessilis Peter Rubtzoff 1977-4-14 8940 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. East Fork Colma Creek canyon area, San Bruno Mountains. Comment
  CAS-BOT-BC365923  Soliva sessilis Le Roy Abrams 1902-5-4 2428 San Mateo Woodside Comment
  JROH1239  Soliva sessilis John H. Thomas 1956-4-7 5610 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374495  Sonchus asper Ned Cahill 1974-4-30 227 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  RSA176778  Sonchus oleraceus John H. Thomas 1963-5-20 10112 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC374710  Sonchus oleraceus Walter Knight; Irja Knight 1964-4-25 691 San Mateo San Bruno Mountain. Upper part of ravine adjacent to Radio Rd. Comment
  RSA128377  Sonchus oleraceus P. H. Raven 1950-6-3 2209 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  JROH5522  Sparganium eurycarpum var. eurycarpum G. H. Mallory 1919-8-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Marsh at head of Searsville Lake. Comment
  CAS-BOT-BC236630  Spartina foliosa John Thomas Howell 1956-11-22 31962 San Mateo Near Main St. and Bayshore Highway, Redwood City Comment
  RSA121019  Spartina foliosa J. T. Howell 1956-11-22 31962 San Mateo Redwood City Comment
  RSA23203  Spartina foliosa I. L. Wiggins 1938-11-25 9213 San Mateo Along Dumbarton Bridge approach Comment
  CAS-BOT-BC390013  Spergula arvensis Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountain. Top of ridge above Brisbane Comment
  CAS-BOT-BC390201  Spergularia bocconi G. B. Rossbach; R. P. Rossbach 1940-6-20 737 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC390202  Spergularia bocconi G. B. Rossbach; R. P. Rossbach 1939-5-12 726 San Mateo San Pedro Point 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-BC390477  Spergularia macrotheca var. macrotheca Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC390458  Spergularia macrotheca var. macrotheca Robert Robertson 1954-5-1 115 San Mateo Bench at Pescadero Beach 9 Comment
  CAS-BOT-BC390921  Spergularia marina Javier Penalosa 1963-3-30 2768 San Mateo San Bruno Mountain. Guadalupe Valley 30 Comment
  CAS-BOT-BC390922  Spergularia marina Walter Knight; Irja Knight 1964-9-2 984 San Mateo San Bruno Mountain. Beach at Point San Bruno Comment
  CAS-BOT-BC390698  Spergularia rubra Robert Robertson 1954-5-1 117 San Mateo At Pescadero Beach 9 Comment
  RSA0097346  Spergularia rubra var. perennans Lyman Benson 1934-7-29 6113 San Mateo Moss Beach. Pcific Ocean watershed. 15 Comment
  RSA0098733  Spergularia villosa Lyman Benson 1934-7-29 6112 San Mateo Moss Beach. Pcific Ocean watershed. 15 Comment
  CAS-BOT-BC173602  Spiranthes romanzoffiana Peter Rubtzoff 1979-7-26 9294 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  SJSU15796  Stachys ajugoides Toni Corelli 2010-7-8 657 San Mateo Bean Hollow State Beach. On east side of Arryo de los Frijoles Trail. 10 Comment
  RSA131277  Stachys ajugoides L. R. Abrams 1915-6-7 5244 San Mateo Woodside to Crystal Springs Road. Comment
  RSA131287  Stachys ajugoides W. R. Dudley 1894-05 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  CDA20748  Stachys bullata Arthur Gilbert 2006-11-14 XI- 14 /15-2006 San Mateo Frenchmans Creek, Half Moon Bay. 0 Comment
  HSC23942  Stachys bullata Mary Katherine Wicksten 1971-6-15 50 San Mateo Huddart Park near horse ring Comment
  JROH2910  Stachys bullata John Hunter Thomas 1987-5-19 24294 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2916  Stachys bullata John Hunter Thomas 1992-7-24 25384 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Causeway Comment
  UC25935  Stachys bullata J. Burtt Davy Jun 21 1893-Jun 23 1893 1141 San Mateo Pilarcitos Lake and Canyon Comment
  SEINET12343829  Stachys bullata L. S. Rose 1932-5-3 32215 San Mateo San Bruno 183 Comment
  UCD125565  Stachys bullata Alan T. Whittemore 1976-5-31 136 San Mateo Alpine Road, near east end of Corte Madera Creek Trail. Comment
  CDA41578  Stachys rigida A. Gilbert 1997-6-8 s.n. San Mateo San Francisco Bay Area; La Honda. 0 Comment
  CAS-BOT-BC164649  Stachys rigida subsp. quercetorum Peter Rubtzoff 1976-6-13 8636 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JEPS127878  Stachys rigida var. quercetorum Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 298 San Mateo Crystal Springs Reservoir Comment
  UC92128  Stebbinsoseris heterocarpa T. S. Brandegee 1890-5-21 San Mateo Searsville Comment
Read comments
Nov 12 2007
  JROH1789  Stellaria nitens John H. Thomas 1968-3-17 14196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC375912  Stephanomeria virgata Margaret A. Barry 1937-7-17 200 San Mateo Coal Mine Ridge Comment
  JROH1276  Stephanomeria virgata Toni Corelli 2006-8-8 316 b San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Road E at junction of Trail 14 106 Comment
  CAS-BOT-BC375911  Stephanomeria virgata Le Roy Abrams 1902-9-28 3002 San Mateo New Grade Road - near Portola Comment
  SJSU15942  Stipa lepida John Rawlings, Ken Hickman 2016-5-26 1817 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
  JROH5390  Stipa miliacea var. miliacea Ann Lambrecht 2002-9-18 4 San Mateo Jasper Ridge Biological Preserve, Stanford University. Off Trail 13, Leonard's Bridge section, 2-3 meters W of bridge, not far from its S end. Comment
  JROH5329  Stipa pulchra John H. Thomas 1955-5-6 4995 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small draw on south side of ridge. Comment
  JROH5330  Stipa pulchra John H. Thomas 1955-5-6 4995 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small draw on south side of ridge. 182 Comment
  JROH5336  Stipa pulchra John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM313014  Stuckenia pectinata Malcolm A. Nobs, S. Galen Smith 1949-8-25 1552 San Mateo Marshes at Sharp Park. Comment
  POM149358  Stylomecon heterophylla A. D. E. Elmer 1903-04 4921 San Mateo Spanishtown Comment
  UC50112  Stylomecon heterophylla Ivar Tidestrom May, 1894 San Mateo Comment
  JROH1679  Symphoricarpos albus var. laevigatus John Hunter Thomas 1977-6-16 18737 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1684  Symphoricarpos albus var. laevigatus John Hunter Thomas 1981-7-12 20692 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat dock 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-BC237060  Symphoricarpos mollis Ned Cahill 1974-5-13 274 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC237067  Symphoricarpos mollis Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo, San Bruno Mountain Comment
  RSA18299  Symphoricarpos mollis C. B. Wolf 1927-5-31 417 San Mateo North end of Searsville Lake. Comment
  UC1555382  Symphyotrichum chilense J. A. DeBenedictis 1988-7-13 1542 San Mateo San Bruno Mt. Comment
  CAS-BOT-BC99090  Symphyotrichum chilense W. R. Dudley 1905-9-24 s.n. San Mateo Black Mountain - Santa Cruz Peninsula Comment
  CAS-BOT-BC99098  Symphyotrichum chilense Helen D. Geis 1901-10-25 s.n. San Mateo Near Spaingstown (Half Moon Bay) Comment
  HSC23979  Symphyotrichum chilense Mary Katherine Wicksten 1971-6-24 117 San Mateo Huddart Park, by park entrance Comment
  JROH1287  Taraxacum officinale John Hunter Thomas 1981-2-14 20230 San Mateo Jasper Ridge Biological Preserve, Stanford University; old picnic area below dam Comment
  JROH3001  Taraxia ovata John H. Thomas 1971-4-10 15761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA119855  Tauschia kelloggii W. R. Dudley 1892-5-14 s.n. San Mateo Pass, near head of Calera Valley. Comment
  CAS-BOT-BC447475  Tellima grandiflora John H. Thomas 1967-5-7 12836 San Mateo Near intersections of Bean Hollow and Pescadero roads, about 1/2 mile westward from Pescadero 91 Comment
  UCD39286  Tetragonia expansa B. Crampton 1962-6-11 6517 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  RSA127726  Tetragonia tetragonoides John H. Thomas 1959-7-8 8015 San Mateo Low moist coastal bluffs at Pescadero Beach. Comment
  CAS-BOT-BC399838  Thalictrum polycarpum Margaret A. Barry 1938-4-21 248 San Mateo By Los Trancos Creek near Coal Mine Ridge Comment
  CAS-BOT-BC399851  Thalictrum polycarpum C. F. Baker 1902-5-1 692 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC399852  Thalictrum polycarpum Alice Eastwood 1922-5-30 11330 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC66658  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66659  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66663  Thysanocarpus curvipes John H. Thomas 1971-4-3 15745 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66672  Thysanocarpus curvipes John H. Thomas 1975-4-5 17715 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66673  Thysanocarpus curvipes John H. Thomas 1976-4-2 18074 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1606  Thysanocarpus curvipes John Hunter Thomas 1986-4-5 23927 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1614  Thysanocarpus curvipes John Hunter Thomas 1987-4-16 24205 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10482096  Thysanocarpus curvipes Charles H. Boxmeyer 1894-1 Boxmeyer s.n. San Mateo Comment
  RSA0039332  Thysanocarpus curvipes var. curvipes Carl B. Wolf 1929-5-17 3716 San Mateo 1 mi. west of Skyline Drive on Alpine Road. Comment
  RSA95468  Tiarella trifoliata var. unifoliata L. S. Rose 1953-7-27 53053 San Mateo Kings Mountain. 610 Comment
  JROH386  Torilis nodosa John Hunter Thomas 1981-5-14 20572 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old shack riders shack Comment
  JROH403  Torilis nodosa John Hunter Thomas 1989-5-9 24697 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old shack riders shack Comment
  CAS-BOT-BC81494  Torreya californica W. R. D. 1895-3-26 s.n. San Mateo La Honda Comment
  RSA45321  Torreya californica I. L. Wiggins 1945-5-5 11161 San Mateo Along La Honda Creek about 1 mile above La Honda 152 Comment
  CAS-BOT-BC172904  Toxicodendron diversilobum C. F. Leitholt 1901-3-16 s.n. San Mateo Los Trancos Creek, near Stanford University Comment
  JROH4755  Toxicoscordion fremontii John H. Thomas 1956-4-7 5604 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  JROH4757  Toxicoscordion fremontii Richard L. Garber 1971-5-18 25 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4758  Toxicoscordion fremontii John H. Thomas 1973-4-14 16553 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1288  Tragopogon porrifolius John H. Thomas 1977-5-14 18606 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389711  Tragopogon porrifolius L. Sigal 1969-5-1 280 San Mateo Campus of San Mateo Comment
  JROH3394  Trientalis latifolia John Hunter Thomas 1978-4-28 19161 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1129949  Trifolium albopurpureum var. albopurpureum H. S. Yates 1935-5-8 5206 San Mateo 2 mi n Langley Hill 579 Comment
  JROH2235  Trifolium barbigerum Le Roy Abrams 1904-5-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2252  Trifolium bifidum var. decipiens John H. Thomas 1964-4-19 10317 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  OBI12706  Trifolium bifidum var. decipiens Lewis S. Rose 1966-5-2 66035 San Mateo Emerald Lake, W of Redwood City 91 Comment
  POM277948  Trifolium ciliolatum Lyman D. Benson 1930-5-3 2112 San Mateo Above Woodside, Mt. Range: Santa Cruz 366 Comment
  UC485415  Trifolium depauperatum var. amplectens R. L. Pendleton 1907-4-20 628 a San Mateo Colma 121 Comment
  UC631216  Trifolium depauperatum var. amplectens P. B. Kennedy 1928-5-2 10099 San Mateo e Daly City (hills) Comment
  JROH2260  Trifolium depauperatum var. amplectens John H. Thomas 1974-4-25 17205 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  JROH2266  Trifolium depauperatum var. truncatum John H. Thomas 1956-4-7 5612 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2281  Trifolium fucatum Marie Tifft 1952-5-10 42 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  JROH2295  Trifolium fucatum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2310  Trifolium fucatum John Hunter Thomas 1992-5-5 25214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC16510  Trifolium fucatum J. Burtt Davy 1895-4-20 1022 San Mateo Millbrae Comment
  UC631607  Trifolium fucatum A. A. Heller 1907-5-23 8560 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  POM88134  Trifolium fucatum var. fucatum L. R. Abrams 1902-5-4 2424 San Mateo Woodside Comment
  SJSU15217  Trifolium glomeratum Toni Corelli 2010-5-5 625 San Mateo Ano Nuevo State Park, Cascade Field 9 Comment
  JROH2316  Trifolium gracilentum John H. Thomas 1971-4-24 15776 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2325  Trifolium hirtum John Hunter Thomas 1985-5-2 23578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33319  Trifolium macraei A. D. E. Elmer -May-1903 4812 San Mateo San Pedro [Point?]; ISOTYPE of T. bicephalum Comment
  UCD111316  Trifolium macraei June McCaskill 1954-5-8 292 San Mateo Moss Beach. Comment
  POM277910  Trifolium microcephalum Lyman D. Benson 1935-5-5 6524 San Mateo Lake Searsville. 152 Comment
  UCSC010593  Trifolium suffocatum Neal Kramer 2016-4-9 2169 a San Mateo Pescadero State Beach Parking Area 13 Comment
  UCD78150  Trifolium tomentosum Robert E. Preston 2008-4-2 2602 San Mateo 1.1 mi SE of San Andreas Reservoir, at jct two dirt roads 107 Comment
  JROH2375  Trifolium variegatum John H. Thomas 1956-4-7 5606 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  UC867032  Trifolium variegatum T. R. Abrams 1915-6-14 5564 San Mateo Kings Mtn Rd Comment
  UC204145  Trifolium variegatum var. melananthum A. D. E. Elmer May, 1903 4685 San Mateo Portola Comment
  JROH2394  Trifolium willdenovii John H. Thomas 1955-5-6 5008 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2415  Trifolium willdenovii John Hunter Thomas 1991-4-11 24985 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  POM278621  Trifolium willdenovii Lyman D. Benson 1935-5-5 6526 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  SJSU15438  Trifolium willdenovii Toni Corelli 2010-5-13 605 San Mateo Pedro Point Headlands, Pacifica CA; along Arroyo Trail. 170 Comment
  UC485431  Trifolium willdenovii R. L. Pendleton 1907-4-20 609 San Mateo Lake Merced 30 Comment
  JROH2409  Trifolium willdenovii John Hunter Thomas 1985-4-11 23520 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and bridge across San Francisquito Creek Comment
  CAS-BOT-BC451910  Triglochin maritima Ira L. Wiggins 1946-4-30 11200 San Mateo On west side of Bayshore Highway 1/2 mile north of Redwood City. Comment
  SJSU15758  Trillium albidum Toni Corelli 2009-3-10 425 San Mateo Gazos Creek Road, San Mateo Coast 18 Comment
  UC1206466  Trillium chloropetalum Le Roy Abrams 1902-4-13 2331 San Mateo Crystal Springs Lake Comment
  UC74960  Trillium chloropetalum unknown 1902-3-9 307 San Mateo hills near Stanford University Comment
  POM170078  Trillium chloropetalum var. chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake. Comment
  RSA176413  Trillium chloropetalum var. chloropetalum John H. Thomas 1964-4-19 10330 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC521075  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula: ravine S side Montara Mt. Comment
  CAS-BOT-BC521207  Trillium chloropetalum var. giganteum George Oberlander 1950-3-11 456 San Mateo Pilarcitos Canyon Comment
  POM193595  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-16 s.n. San Mateo By trail north of Tripps Stone, Woodside. Comment
  CAS-BOT-BC133435  Trillium ovatum John Thomas Howell 1924-2-23 267 San Mateo King Mountain Comment
  CAS-BOT-BC133443  Trillium ovatum D. T. Fullaway 1908-4-1 s.n. San Mateo King's Mountain Comment
  CAS-BOT-BC133444  Trillium ovatum C. F. Leithold 1896-3-28 s.n. San Mateo Near Kings Mt. Comment
  UC1134678  Trillium ovatum N. K. Carlson 1935-7-3 115 San Mateo 3 mi. s. Bellvale; Santa Cruz Quad. Comment
  JROH4135  Triphysaria pusilla John H. Thomas 1966-4-6 11549 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS40978  Triphysaria pusilla Lewis S. Rose 1965-3-25 65011 San Mateo n end San Bruno Mts.; n end San Bruno Mts. 121 Comment
  JEPS17983  Triphysaria versicolor subsp. versicolor George B. Rossbach 1955-5-29 482 San Mateo Ano Nuevo Point; sw San Mateo County Comment
  UC419721  Triphysaria versicolor subsp. versicolor Mrs. H. P. Bracelin 1930-10-26 132 San Mateo Ocean Rd between Half Moon Bay and Santa Cruz near Pidgeon Point; Ocean Rd btw Half Moon Bay and Santa Cruz Comment
  JROH5466  Trisetum canescens John H. Thomas 1967-5-12 12869 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM277006  Triteleia ixioides subsp. ixioides Lyman Benson 1930-5-3 2093 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  CAS-BOT-BC523095  Triteleia ixioides subsp. ixioides W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Peninsula, from Woodside to Crystal Springs Lake Comment
  JROH4746  Triteleia laxa John H. Thomas 1967-5-10 12852 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD39088  Triteleia laxa Janet Turner 1933-4-18 3688 San Mateo Emerald Lake. Comment
  CAS-BOT-BC526367  Triteleia laxa David D. Keck 1932-5-6 1466 San Mateo Belmont Comment
  CAS-BOT-BC200487  Triticum aestivum Phillip C. Wheeler 1965-6-19 s.n. San Mateo Brisbane Lagoon Comment
  CAS-BOT-BC67379  Tropidocarpum gracile Le Roy Abrams 1898-4-1 s.n. San Mateo Portola. Comment
  CAS-BOT-BC212676  Ulex europaeus Javier Penalosa 1963-2-23 2645 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  JEPS87362 Image available Ulex europaeus Don Pendleton 1993-10-28 San Mateo 0.3 mi e San Bruno Mountain County Park Gatehouse (on Guadalupe Canyon Parkway); San Bruno Mountain County Park 300 Comment
  RSA254229  Ulex europaeus Robert A. Norris 1975-3-31 2292 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  JROH145  Umbellularia californica John H. Thomas 1984-10-22 23488 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
  RSA15340  Umbellularia californica C. B. Wolf 1927-2-5 151 San Mateo Pilarcitos Lake Comment
  JROH1299  Urospermum picroides John Rawlings 2007-8-29 1041 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed at entry point from Dennis Martin site. 71 Comment
  CAS-BOT-BC403967  Urtica dioica subsp. gracilis Peter H. Raven 1950-4-30 1979 San Mateo In the Montara Mts. ca. 1/2 mile N. of Montara 91 Comment
  CAS-BOT-BC404025  Urtica dioica subsp. holosericea Le Roy Abrams 1901-9-1 2218 San Mateo Menlo Park Comment
  RSA249475  Urtica dioica subsp. holosericea John F. Emmel 1972-6-15 407 San Mateo At edge of eucalyptus grove, 0.1 air mile SW of jct Radio Road and Guadalupe Cyn Parkway, San Bruno Mtns. 221 Comment
  CAS-BOT-BC412536  Urtica urens John H. Thomas 1968-12-18 14870 San Mateo About 1 mile west of Pescadero toward the coast Comment
  CAS-BOT-BC199349  Vaccinium ovatum W. R. Dudley 1900-3-16 s.n. San Mateo By stage road from King's Mt. to Spanish town Comment
  JEPS85569  Vaccinium ovatum Craig Dremann 1986-8-30 329 San Mateo entrance to Memorial Park, off Pescadero road Loma Mar Comment
  POM176866  Vaccinium ovatum James I. McMurphy 1906-5-20 79 San Mateo Kings Mountain, Santa Cruz Mts. 457 Comment
  RSA471170  Vaccinium ovatum L. H. Jones 1909-3-3 s.n. San Mateo Summit of King's Mountain, Stanford University. 732 Comment
Read comments
Sep 22 2011
  SD38450  Vaccinium ovatum Edith A. Purer 1933-5-24 3642 San Mateo Skyline Boulevard. Comment
  CAS-BOT-BC199467  Vaccinium parvifolium A. D. E. Elmer 1903-5-1 4924 San Mateo Butano Creek Comment
  RSA112363  Vaccinium parvifolium W. R. Dudley 1903-5-2 s.n. San Mateo Iverson's, Pescadero Creek. Comment
  RSA187270  Vaccinium parvifolium W. R. Dudley 1908-5-2 s.n. San Mateo Iverson's, upper Pescadero Creek. Comment
  UC22218  Vaccinium parvifolium W. J. V. Osterhout Jul 1899 San Mateo Near Pescadero Comment
  CAS-BOT-BC76141  Vancouveria planipetala J. H. Thomas 1954-4-15 3907 San Mateo About 1.5 mile southwest of Searsville Lake. 228 Comment
  UC1206448  Vancouveria planipetala W. R. Dudley 1895-6-6 San Mateo near Peters Creek (this side of Iverson's); Santa Cruz Peninsula, near Peters Creek Comment
  POM149207  Vancouveria planipetala E. B. Copeland 1903-5-9 3051 San Mateo Big Basin. Comment
  HSC24033  Verbena lasiostachys Mary Katherine Wicksten 1971-7-12 167 San Mateo Huddart Park, near Archery Flat, along King's Mtn. Rd. Comment
  JROH4259  Verbena lasiostachys var. lasiostachys John H. Thomas 1971-5-30 15975 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC74933  Veronica americana Copeland 1903-6-16 3318 San Mateo Montara Point Comment
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Jun 10 2012
  UCD163588  Veronica americana Peter Rubtzoff 1980-8-4 9560 San Mateo San Mateo: San Bruno Mountain. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, westernmost part of the area on slope across fence. Comment
  CDA6415  Veronica persica Wm. Davis 1958-1-13 20 -58 San Mateo Half Moon Bay. 0 Comment
  UC1084414  Vicia americana var. americana G. Thomas Robbins 1937-4-11 104 San Mateo near Redwood City Comment
  RSA152232  Vicia americana var. americana I. L. Wiggins 1925-04 1655 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  JROH2426  Vicia benghalensis John Hunter Thomas 1977-6-16 18797 -1 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15772  Vicia benghalensis Toni Corelli 2010-6-1 635 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 24 Comment
  UC618588  Vicia benghalensis John Thomas Howell 1938-6-4 13886 San Mateo Burlingame Comment
  RSA254231  Vicia dasycarpa Robert A. Norris 1975-3-31 2290 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  CHSC23153  Vicia gigantea Robert A. Schlising 1963-2-23 2435 San Mateo Coast Range. 21 miles north of Davenport, along Highway 1. Comment
  JROH2439  Vicia sativa subsp. nigra John Hunter Thomas 1982-5-18 20945 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Searsville Lake near bridge Comment
  UCR121557  Vicia tetrasperma George K. Helmkamp, E. A. Helmkamp 1999-6-28 4979 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  POM257512  Vicia villosa Carl B. Wolf 1929-5-27 3737 San Mateo Los Trancos Creek back of Stanford University. Comment
  UC1121562  Viola adunca A. E. Wieslander 1935-2-3 507 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  UC483497  Viola adunca Ira L. Wiggins 1931-2-21 5091 a San Mateo Pescadero Beach Comment
  CAS-BOT-BC536571  Viola glabella John Hunter Thomas 1954-4-3 3814 San Mateo La Honda Creek, about 1 mi N of La Honda 152 Comment
  CAS-BOT-BC536569  Viola glabella Herbert L. Mason 1927-4-23 3672 San Mateo La Honda Comment
  POM135301  Viola glabella Stewart H. Burnham 1895-5-8 792 San Mateo Outer Coast Range. Comment
  POM128420  Viola ocellata L. R. Abrams 1902-3-16 2276 San Mateo Kings Mountain. Comment
  RSA130599  Viola ocellata Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt Road. Santa Cruz Peninsula. Comment
  SD38904  Viola ocellata Edith A. Purer 1933-4-25 3645 San Mateo King's Mountain Road Comment
  RSA249485  Viola pedunculata John F. Emmel 1971-6-21 397 San Mateo On