Search Results — 2000 specimen records retrieved (1348 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/consortium/).
 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
  RSA0025759  Abronia latifolia C. F. Baker 1902-10-1 1741 San Mateo Pillar Point. Comment
  SEINET11941811  Abronia latifolia Unknown 1932-1 9119 San Mateo Half Moon Bay Comment
  CAS-BOT-BC177044  Acacia dealbata Ned Cahill 1974-4-30 238 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC177045  Acacia dealbata J. H. Thomas 1959-11-19 8514 San Mateo Near Bayshore and University Ave., East Palo Alto Comment
  CAS-BOT-BC451124  Acaena pinnatifida var. californica John Thomas Howell 1926-4-24 1915 San Mateo Daly City 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-BC219598  Acanthomintha duttonii Carl B. Wolf 1929-5-24 3723 San Mateo Above Upper Emerald Lake back of Redwood City Comment
  UC517976  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  UC761787  Acanthomintha duttonii R. F. Hoover 1941-5-20 5110 San Mateo Redwood City Comment
  LA55133  Acanthomintha ilicifolia Harry A. Dutton; Harriet A. Walker 1915-5-29 3819 San Mateo near the Menlo Golf Club Comment
Read comments
Jul 30 2017
  SEINET12276583  Acanthomintha ilicifolia L. S. Rose 1932-1 San Mateo Comment
  RSA0076542  Acanthomintha obovata subsp. duttonii L. S. Rose 1933-5-17 33171 San Mateo Redwood City. Comment
  RSA0076543  Acanthomintha obovata subsp. duttonii Harry A. Dutton, Harriet Ann Walker 1915-5-26 3819 San Mateo Near the Menlo Golf Club. Comment
  JROH153  Acer macrophyllum Le Roy Abrams 1902-4-6 2314 San Mateo Jasper Ridge Biological Preserve, Stanford University 110 Comment
Read comments
Feb 20 2015
  JROH155  Acer macrophyllum John H. Thomas 1971-4-25 15786 San Mateo Jasper Ridge Biological Preserve, Stanford University 92 Comment
  CAS-BOT-BC333289  Acer macrophyllum W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Peter's Creek Bridge, Iversons Comment
  SEINET4068107 Image available Acer macrophyllum D. Demaree 1932-1 8984 San Mateo Near Isov. Rolph Estates. P.O. Palo Alto. Comment
  JROH166  Acer negundo John H. Thomas 1959-4-5 7669 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC336917  Acer negundo var. californicum C. B. Wolf 1930-5-11 1809 San Mateo 4 miles W. of La Honda, Santa Cruz Mts. 91 Comment
  JROH172  Acer palmatum Carol Zabel and Ann Lambrecht 2002-4-24 46 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera creek floodplain north of Leonard's bridge about 25 feet 107 Comment
  CAS-BOT-BC21581  Achillea millefolium Ned Cahill 1974-4-19 144 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC21598  Achillea millefolium Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. Below parking lot. 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
  JROH447  Achillea millefolium John Hunter Thomas 1980-5-8 19954 San Mateo Jasper Ridge Biological Preserve, Stanford University 124 Comment
  SBBG25068  Achillea millefolium D. Myrick 1966-6-11 1446 San Mateo off Hwy 1, S of San Francisco near Pescadero Comment
  JROH463  Achyrachaena mollis John H. Thomas 1971-4-10 15754 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH465  Achyrachaena mollis John H. Thomas 1976-4-30 18101 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH467  Achyrachaena mollis John Hunter Thomas 1980-5-8 19943 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH468  Achyrachaena mollis John Hunter Thomas 1981-4-30 20514 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH471  Achyrachaena mollis John Hunter Thomas 1982-5-18 20939 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing oval Comment
  SD2527  Acmispon americanus Ulysses S. Grant IV Jun 1925 San Mateo Burlingame Comment
  JROH2091  Acmispon wrangelianus John H. Thomas 1961-4-8 9075 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5537616  Aconitum columbianum H. S. Gentry 1931-1 76 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC29291  Adenocaulon bicolor H. L. Mason 1921-7-1 s.n. San Mateo Butano Creek Comment
  CAS-BOT-BC29290  Adenocaulon bicolor E. S. Spalding 1924-6-28 2967 San Mateo La Hondo Comment
  CAS-BOT-BC139954  Adenostoma fasciculatum Ned Cahill 1974-6-21 332 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC65515  Adiantum aleuticum George Oberlander 1950-3-11 440 San Mateo Pilarcitos Canyon Comment
  JROH85  Adiantum aleuticum Lawrence J. Winship 1974-11-16 15 San Mateo Jasper Ridge Biological Preserve, Stanford University. Among wet rocks below Searsville dam. Comment
  CAS-BOT-BC65672  Adiantum jordanii Ned Cahill 1974-5-13 250 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH93  Adiantum jordanii John Hunter Thomas 1982-11-8 21257 D San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  POM281089  Adiantum jordanii Lyman Benson 1937-7-15 8454 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  RSA0030869  Adiantum jordanii Deb Annuschka 1989-8-4 337 San Mateo Isenberg Ranch. Comment
  RSA15284  Adiantum jordanii C. B. Wolf 1927-4-3 252 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  UCSB18581  Adiantum jordanii Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 91 Comment
  CAS-BOT-BC202669  Aesculus californica A. D. E. Elmer 1903-6-1 4258 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC202672  Aesculus californica Ned Cahill 1974-5-30 329 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Area next to Edgewood Road Comment
  CAS-BOT-BC29526  Agoseris apargioides W. R. Dudley 1896-11-15 s.n. San Mateo Near shore, Spanishtown Comment
  JROH480  Agoseris grandiflora var. grandiflora John H. Thomas 1967-6-1 12959 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH489  Agoseris heterophylla John H. Thomas 1970-4-28 15611 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC15245  Agoseris hirsuta Reed Clark Rollins 1942-4-30 3021 San Mateo San Bruno Hills, 1 mile south of Daly City Comment
  CAS-BOT-BC15232  Agoseris hirsuta W. R. Dudley 1893-5-1 s.n. San Mateo North of San Bruno Comment
  RSA116647  Agoseris hirsuta W. R. Dudley 1893-5-17 s.n. San Mateo Back of Millbrae Comment
  SJSU15809  Agrostis blasdalei Toni Corelli 2016-7-25 1260 San Mateo Bean Hollow State Beach along Arroyo de los Frijoles Trail; bare area west and adjacent to designated trail 5 Comment
  JROH4779  Agrostis capillaris John Rawlings 2009-6-17 1045 San Mateo Jasper Ridge Biological Preserve, Stanford University; seven yards from paved road in middle of the blocked-off dirt path leading to Causeway Bridge 105 Comment
  JROH5601  Agrostis capillaris John Rawlings 2013-6-26 1204 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few meters from the semaphore grass vernal depression west of Rd. C 121 Comment
  UCD51853  Agrostis capillaris var. aristata John Thomas Howell 1975-9-25 51509 San Mateo San Bruno Mountain. Comment
  UCD52319  Agrostis exarata Beecher Crampton 1962-6-11 6498 San Mateo Pacifica, N. city limits, along State Hwy. 1, just s.w. of its junction with Skyline Blvd. Comment
  UCD52248  Agrostis exarata var. microphylla Collector unknown 1925-6-15 2115 San Mateo Pescadero - Santa Cruz Rd. Comment
  JROH4789  Agrostis pallens John H. Thomas 1971-5-30 15964 San Mateo Jasper Ridge Biological Preserve, Stanford University 128 Comment
  JROH4803  Agrostis pallens John Rawlings 2013-5-21 1162 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from power poles near path to Rattlesnake Rocks from Rd. D. 133 Comment
  SJSU15959  Agrostis pallens John Rawlings, Ken Hickman 2016-5-26 1835 B San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  SEINET200165 Image available Agrostis semiverticillata Malcolm A. Nobbs, S. Galen Smith 1949-8-26 1607 San Mateo About 1 mile south of Pigeon Point. Comment
  JROH4807  Agrostis stolonifera John Rawlings 2008-7-23 1046 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry creek bed of San Francisquito Creek about 200 yards downstream from the Low Flow Crossing. 95 Comment
  UC1100115  Agrostis viridis Malcolm A. Nobs and S. Galen Smith 1949-8-26 1607 San Mateo about 1 mi s Pidgeon Point Comment
  CDA38392  Agrostis viridis Wm. Davis 1957-8-16 s.n. San Mateo Nursery; Millbrae. 0 Comment
  JROH4158  Ailanthus altissima John Hunter Thomas 1982-7-2 21055 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing 87 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
  SEINET3917685  Aira caryophyllea K. Harper 1984-4-25 84 -7 San Mateo Along crest of Jasper Ridge, Research Preserve, Stanford University.; 0 Comment
  CAS-BOT-BC138234  Aira caryophyllea var. caryophyllea David D. Keck 1932-5-6 1480 San Mateo Just west of Millbrae Highlands. 50 Comment
  CAS-BOT-BC138235  Aira caryophyllea var. caryophyllea Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain. Slope on top of mountain. 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
  UC814494  Alisma plantago-aquatica Lewis S. Rose 1941-9-13 41440 San Mateo stream bottom San Mateo Canyon 60 Comment
  JROH5785  Allium amplectens John Rawlings 2016-4-26 1757 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine north side of ridge (Area C). Also found in the contact drainage just before entering oak woodland as it runs northwest after crossing Trail 9 192 Comment
  SEINET12049324  Allium amplectens H. L. Mason 1921-1 s.n. San Mateo Jasper Ridge Comment
  CAS-BOT-BC467296  Allium dichlamydeum Ned Cahill 1974-5-13 245 San Mateo Chaparral near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC467297  Allium dichlamydeum Hester R. Davis 1920-6-1 s.n. San Mateo Serpentine Creek of Redwood City Comment
  RSA310964  Allium dichlamydeum Robert F. Thorne, Percy C. Everett 1963-6-9 32236 San Mateo On top of San Bruno Mountain. 335 Comment
  SEINET12043950  Allium dichlamydeum H. L. Mason 1921-1 s.n. San Mateo Jasper Ridge near Sand Hell Caves Comment
  RSA40253  Allium falcifolium L. S. Rose 1948-5-16 48111 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  UC306609  Allium falcifolium A. D. E. Elmer June, 1903 4831 San Mateo Crystal Springs Lake Comment
  SEINET3558047 Image available Allium lacunosum Lewis S. Rose 1932-5-3 32223 San Mateo Redwood City. 183 Comment
  JROH4556  Allium peninsulare var. franciscanum H. L. Mason 1921-5-13 s.n. 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
  JROH4563  Allium unifolium Toni Corelli 2011-5-3 368 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Trail 9 in serpentine swale 185 Comment
  UC5355  Alnus rubra J. Burtt Davy 1895-4-21 1062 San Mateo Pilarcitos Creek Comment
  UCR143475  Alopecurus saccatus David D. Keck 1932-5-6 1472 San Mateo Burlingame; northern city limits Comment
  CAS-BOT-BC137918  Alopecurus saccatus James McMurphy 1906-5-8 s.n. San Mateo Pond near head of Crystal Springs Lakes. Comment
  JEPS23931  Amaranthus californicus L. R. Abrams 1902-9-2 2995 San Mateo Crystal Lake Comment
Read comments
Sep 5 2011
  RSA107065  Amaranthus deflexus L. S. Rose 1956-9-1 56154 San Mateo Atherton 6 Comment
  CDA34348  Amaranthus retroflexus E. Finley 1990-10-25 s.n. San Mateo Redwood City, Jefferson St. at Lonesome Pine. 0 Comment
  JROH4576  Amaryllis belladonna Toni Corelli 2011-10-4 374 San Mateo Jasper Ridge Biological Preserve, Stanford University. Disturbed area below Douglas' iris site 89 Comment
  UC1543058  Ambrosia chamissonis Donald G. Nelson 1938-7-28 579 San Mateo Moss Beach Comment
  CDA9963  Ambrosia chamissonis F. L. Blanc 1960-6-28 San Mateo 1 mile north of Half Moon Bay. 0 Comment
  SD39995  Ambrosia chamissonis Edith A. Purer 1933-7-27 5352 San Mateo Near strand at Pigeon Point on low sand dunes Comment
  POM87791  Ambrosia psilostachya L. R. Abrams 1902-9-21 2992 San Mateo Crystal Lake between the Mts. Comment
  UC1206489  Ambrosia psilostachya L. R. A. 1902-9-21 2992 San Mateo Crystal Lake Comment
  CAS-BOT-BC136829  Amelanchier utahensis L. R. Abrams 1909-4-27 s.n. San Mateo San Mateo [Canon] Canyon, between Pulpit Rock and the forks of the Road Comment
  UCSC007716  Ammophila arenaria Becky Hendricks, Shayne Coppedge 2012-5-18 s.n. San Mateo Ano Nuevo State Park Comment
  RSA0089684  Amsinckia intermedia John H. Thomas 1964-4-19 10324 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Near Searsville Lake. Comment
  JROH1348  Amsinckia menziesii H. J. Dengler 1972-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; above east margin of Searsville Lake by trail Comment
  UCSC007717  Amsinckia spectabilis var. spectabilis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC45181  Anaphalis margaritacea John Hunter Thomas 1963-9-11 10265 San Mateo San Bruno Mountain, in northern part of country 396 Comment
  UCD128852  Anaphalis margaritacea J. M Tucker 1951-8-6 2220 San Mateo M. R. Mattei Ranch, ca. 1.5 miles northeast of Pescadero. Comment
  CAS-BOT-BC391912  Anemone grayi A. D. E. Elmer 1903-4-1 4844 San Mateo King's Mountain Comment
  CAS-BOT-BC391916  Anemone grayi W. R. Dudley 1897-4-9 s.n. San Mateo Santa Cruz Peninsula. Pescadero Creek Comment
  SEINET12087660  Anemone grayi W. R. Dudley 1894-1 s.n. San Mateo beyond Kings Mt. House Comment
  CAS-BOT-BC221453  Angelica hendersonii Saichi Kawahara 1968-6-15 427 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  UC614963  Anisocarpus madioides Beryl O. Schreiber 1932-5-29 300 San Mateo near San Mateo (Spring Valley Water Company Road) Comment
  UC830895  Anisocarpus madioides Lewis S. Rose 1941-7-2 41287 San Mateo Kings Mountain 548 Comment
  UCD18541  Anthemis cotula Roman Gankin 1950-7-4 9 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  JROH194  Anthriscus caucalis John H. Thomas 1967-5-31 12921 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD227715  Anthriscus caucalis G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3745 San Mateo Portola Valley: Golden Hills Rd along Trancos Creek. 106 Comment
  UC2013133  Antirrhinum orontium Neal Kramer 2012-4-27 2044 San Mateo Moss Beach Hills approximately 3/4 mile north of the Half Moon Bay Airport entrance. Comment
  CAS-BOT-BC454479  Aphanes occidentalis Walter & Irja Knight 1965-3-21 949 San Mateo North Power Line Ridge, San Bruno Mountain Comment
  SEINET11080240  Apium leptophyllum J. T. Howell 1975-9-13 51507 San Mateo Burlington, Hillside Street just W of El Camino. Comment
  CAS-BOT-BC451562  Aponogeton distachyos Peter Rubtzoff 1955-4-2 1767 San Mateo Skyline Blvd. near the junction of Chinese Cemetery Road. Comment
  CAS-BOT-BC451566  Aponogeton distachyos Peter Rubtzoff 1956-4-2 1767 San Mateo Skyline Blvd. near the junction of Chinese Cemetery Road. Comment
  CAS-BOT-BC451567  Aponogeton distachyos Peter H. Raven 1967-2-18 20829 San Mateo On east side of State Highway 5, 4.6 miles south of southern boundary of San Francisco. Comment
  UC311129  Aquilegia eximia A. D. E. Elmer June, 1903 4271 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC392069  Aquilegia eximia George Oberlander 1950-6-3 1095 San Mateo San Francisco Watershed Reserve. Near south boundary Comment
  UC118822  Aquilegia formosa C. F. B. 1902-3-30 422 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC405858  Aquilegia formosa Paul Arnaud 1941-4-19 s.n. San Mateo Hills - after Hesler farm enterance. Redwood City Comment
  CAS-BOT-BC17321  Arabis blepharophylla Alice Eastwood 1914-3-12 3753 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC17332  Arabis blepharophylla Lewis S. Rose 1961-4-5 61032 San Mateo San Bruno Mountains. 365 Comment
  HSC6552  Arabis blepharophylla Lincoln Constance, Rimo Bacigalupi, C. R. Bell 1951-3-25 3369 San Mateo SE side of Colma Canyon 61 Comment
  JROH1436  Arabis blepharophylla John Hunter Thomas 1984-4-2 23273 3 G San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  OBI15221  Arabis blepharophylla Lewis S. Rose 1961-4-5 61032 San Mateo San Bruno Mts 366 Comment
  RSA0125532  Arabis blepharophylla R. C. Rollins 1941-3-22 2950 San Mateo San Bruno Hills, 2 miles southeast of Daly City Comment
  RSA0125533  Arabis blepharophylla D. W. Taylor 1988-3-30 9477 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain. 237 Comment
  RSA112474  Aralia californica Theo C. Zschokke 1903-7-10 s.n. San Mateo Goat Ranch Road, Corte de Madera Cr. Comment
  CAS-BOT-BC128668  Arbutus menziesii Elizabeth McClintock; Walter Knight; Irja Knight 1964-9-11 s.n. San Mateo South of Brisbane on side hill by Frontage Road - San Bruno Mountain Comment
  JROH1917  Arbutus menziesii John H. Thomas 1967-4-20 12711 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
  RSA112355  Arbutus menziesii W. R. Dudley 1893-2-18 s.n. San Mateo Searsville to La Honda. Comment
  UC876360  Arbutus menziesii Lewis S. Rose 1935-3-7 35019 San Mateo Woodside Comment
  UCSB11754  Arbutus menziesii Olson, Jim 1962-4-17 San Mateo 1 mile south of La Honda on Skyline Boulevard 670 Comment
  RSA681632  Arbutus menziesii Annuschka Deb 1989-8-18 368 San Mateo [Unspecified] Comment
  SD38430  Arctostaphylos andersonii Edith A. Purer 1933-5-23 3602 San Mateo Skyline Drive. Comment
  SEINET11977844  Arctostaphylos andersonii L. S. Rose 1934-1 34026 San Mateo Skyline Blvd, 4 mi S Kings Mountain Comment
  SEINET11987325  Arctostaphylos andersonii J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4206 San Mateo from Strybing Arboretum, Golden Gate Park, San Francisco, originally from King's Mountain Comment
  SEINET11989200  Arctostaphylos andersonii var. imbricata E. McClintock, Knight, W.; Knight, I. 1982-1 4647 San Mateo from windy Kamchatka Point, San Bruno Mountain 351 Comment
  CAS-BOT-BC23503  Arctostaphylos crustacea Roxana S. Ferris 1918-3-27 738 San Mateo La Honda Road Comment
  CAS-BOT-BC23550  Arctostaphylos crustacea Alice Eastwood 1922-5-30 11335 San Mateo Crystal Springs lakes on hills. Comment
  SEINET11989199  Arctostaphylos crustacea E. McClintock, Knight, W.; Knight, I. 1982-1 4646 San Mateo San Pedro County Park, near Pacifica Comment
  JROH1925  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-6-30 17463 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1926  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-6-30 17463 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1939  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1943  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1987-4-30 24210 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD144585  Arctostaphylos crustacea subsp. crustacea Greg Escoto 2014-2-21 s.n. San Mateo San Pedro Valley Park, a county park located at 600 Oddstad Blvd. Along Hazelnut Trail. 152 Comment
  SEINET11987278  Arctostaphylos glandulosa W. Knight, Knight, I.; McClintock, E.; Sigg, J. 1981-1 4038 San Mateo Strybing Arboretum in San Francisco, originally from Buckeye Canyon, San Bruno Mountain Comment
  CAS-BOT-BC24490  Arctostaphylos imbricata William Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo Power Line Ridge, San bruno Mtn. Comment
  OBI14661  Arctostaphylos imbricata Robert F. Hoover 1964-4-24 8742 San Mateo San Bruno Mt Comment
  JEPS27358  Arctostaphylos pacifica Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7618 San Mateo lateral ridge below and se end of ridge-top road just east of KRON TV tower and station (Guadalupe Valley side); San Bruno Mountain 304 Comment
Read comments
Aug 29 2014
  SBBG21964  Arctostaphylos pacifica R. F. Thorne with P. C. Everett 1963-6-9 32223 San Mateo top of San Bruno Mtn near TV tower Comment
  CAS-BOT-BC44702  Arctostaphylos regismontana A. D. E. Elmer 1903-3-1 4537 San Mateo Kings Mt. Comment
  CAS-BOT-BC44738  Arctostaphylos regismontana Carl B. Wolf 1930-11-6 1067 San Mateo 2 miles north of summit of Kings Mt., Skyline Blvd. 640 Comment
  CAS-BOT-BC44743  Arctostaphylos regismontana J. Burtt Davy 1895-4-20 1049 San Mateo Lake Pilarcitos Comment
  JEPS79444  Arctostaphylos regismontana Edward Lee with H. L. Mason 1935-6-15 1432 San Mateo near summit King's Mountain Comment
  POM87727  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain. Comment
  RSA636750  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24636 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120847  Arctostaphylos regismontana A. E. Wieslander 1936-8-21 658 San Mateo Sierra Moreno Mt. Santa Cruz Quadrangle Comment
  UC565404  Arctostaphylos regismontana Charles M. Belshaw 1936-1-25 1467 San Mateo Kings Mountain Rd six mi w Woodside; South Coast Range Comment
  CAS-BOT-BC44710  Arctostaphylos regismontana Walter Knight; Irja Knight; Jacob Sigg; Elizabeth McClintock 1981-2-25 4170 San Mateo From Strybing Arboretum, Golden Gate Park, San Francisco, #63-1 vea Univ. of Calif. botanic garden, Comment
  CAS-BOT-BC44667  Arctostaphylos sensitiva T. J. B. 1913-3-14 s.n. San Mateo South side of Chrystal Springs Lake on Road this side of Rand's store Comment
  SEINET11989290  Arctostaphylos tomentosa S. W. Edwards 1982-1 s.n. San Mateo Foothill Park near summit of SW ridge Comment
  POM131601  Arctostaphylos tomentosa subsp. crustacea C. F. Baker 1902-3-18 328 San Mateo King's Mountain. Comment
  RSA139987  Arctostaphylos tomentosa subsp. crustacea A. E. Wieslander 1929-3-19 46 San Mateo Kings Mt. Road, head of Peter's Creek. 701 Comment
  RSA636850  Arctostaphylos tomentosa subsp. crustacea S. H. Gudmonson 1978-3-22 18 San Mateo 2 miles north of Woodside Road on Kings Mountain Road. Comment
  RSA81913  Arctostaphylos tomentosa subsp. crustacea E. K. Balls, Percy C. Everett, B. K. Balls 1953-10-16 18680 San Mateo Hwy 5, 30.8 mi. s.e. of San Francisco - San Mateo Co. line. 762 Comment
  CAS-BOT-BC46839  Arctostaphylos uva-ursi Walter Knight; Irja Knight 1981-3-1 4055 San Mateo from fire road edge about 200 yards east of summit parking lot. of San Bruno Mountain. Comment
  JEPS27353  Arctostaphylos uva-ursi Rimo Bacigalupi with L. Heckard and J. Roof 1961-4-24 7614 San Mateo just below rocky spur due north of true summit of mountain (directly below and ne of KQED radio power station); San Bruno Mt. 342 Comment
  SBBG83967  Arctostaphylos uva-ursi R. Gankin 1959-3-25 328 San Mateo San Bruno Mtn, S San Francisco, 0.25 mi E of KRON TV transmitter Comment
  SJSU6081  Arctostaphylos uva-ursi S. H. Casey 1969-5-18 256 San Mateo near summit of San Bruno Mt Comment
  SEINET11987485  Arctostaphylos uva-ursi J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4212 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt., near Pacific Rock Comment
  CDA37698  Arctotheca calendula Breckenridge/Filippini 2006-5-8 s.n. San Mateo Pescadero; Bean Hollow Rd. 0 Comment
  CAS-BOT-BC400410  Aristolochia californica Elizabeth McClintock 1969-3-9 s.n. San Mateo San Bruno Mountain. Edge of southern ravine of Glen Park Canyon, next to fence dividing Crocker property from City of Brisbane. Eastern portion of mountain Comment
  CAS-BOT-BC47703  Armeria maritima subsp. californica Lous F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC82518  Arnica discoidea David D. Keck 1932-5-11 1775 San Mateo East side of Kings Mountain, on Kings Mountain Road 350 Comment
  JROH4838  Arrhenatherum elatius John Rawlings 2008-5-7 1021 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Road L in disturbed grassy area, under large valley oak. 107 Comment
  UC1036426  Artemisia californica G. B. Rossbach 1955-7-26 616 San Mateo 3 mi s San Francisco City/County line (along Route 1); northern San Mateo County Comment
  HSC24037  Artemisia douglasiana Mary Katherine Wicksten 1971-7-12 169 San Mateo Huddart Park; Road bank of King's Mountain Rd. below Archery Flat Comment
  SBBG33991  Artemisia douglasiana L. S. Rose 1969-8-8 69090 San Mateo Skyline Blvd and Half Moon Bay Rd, Cahill Ridge 243 Comment
  CAS-BOT-BC93639  Artemisia pycnocephala C. B. Wolf 1930-11-5 1062 San Mateo 4 miles south of Pescadero 7 Comment
  CAS-BOT-BC400511  Asarum caudatum A. D. E. Elmer 1903-6-1 4421 San Mateo Butano Creek Comment
  SEINET10580520  Asclepias fascicularis Lewis S. Rose 1965-8-27 Rose 65092 San Mateo Emerald Lake, West of Redwood City, dry slopes. 122 Comment
  SEINET5923013 Image available Asclepias fascicularis L. S. Rose 1965-1 65092 San Mateo Emerald Lake, W of Redwood City. Comment
  UCR254760  Aster chilensis Peter Rubtzoff 1975-9-11 8376 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC186756  Astragalus gambelianus George Oberlander 1950-4-22 786 San Mateo San Andreas Valley Comment
  CAS-BOT-BC186752  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo Hills back of Redwood City Comment
  RSA60160  Astragalus gambelianus Lois E. James 1947-4-11 1757 San Mateo Hills back of Redwood City. Comment
  POM16331  Astragalus nuttallii C. F. Baker 1903-6-30 3358 San Mateo Pillar Point Comment
  CAS-BOT-BC194427  Astragalus nuttallii var. virgatus Daniel Cohen 1953-5-9 98 San Mateo Beach at Pescadero Comment
  CAS-BOT-BC177970  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks in soil. 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-BC193090  Astragalus pycnostachyus var. pycnostachyus C. F. B. 1902-10-1 1744 San Mateo Pillar Point Comment
  CAS-BOT-BC193093  Astragalus pycnostachyus var. pycnostachyus Alice Eastwood; John Thomas Howell 1938-6-26 6057 San Mateo Near Pescadero Comment
  POM16092  Astragalus pycnostachyus var. pycnostachyus C. F. Baker 1902-10-1 1744 San Mateo Pillar Point. Comment
  RSA294164  Astragalus pycnostachyus var. pycnostachyus Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4225 San Mateo N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  CAS-BOT-BC66140  Athyrium filix-femina var. cyclosorum D. E. Breedlove 1973-9-26 35558 San Mateo Pescadero Creek County Park 365 Comment
  CAS-BOT-BC170571  Atriplex J. H. Thomas 1958-10-21 7486 San Mateo Near intersection of Bayshore highway and Main Street, Redwood City. Comment
  UC583161  Atriplex leucophylla Lewis S. Rose 1936-8-16 36713 San Mateo Granada Granada (Sea Beaches) 3 Comment
  POM164809  Atriplex leucophylla E. B. Copeland 1903-6-5 3321 San Mateo Montara Point. Comment
  JROH1805  Atriplex prostrata Roxana S. Ferris 1924-10-6 4095 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake on Portola Highway Comment
  SJSU16064  Atriplex prostrata Toni Corelli 2009-9-9 440 San Mateo Half Moon Bay State Beach, in low dunes Comment
  UC1191296  Atriplex triangularis Malcolm A. Nobs, S. Galen Smith 1949-8-26 1595 San Mateo marshes at mouth Pescadero Creek mouth Pescadero Creek Comment
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Feb 28 2011
  CAS-BOT-BC146123  Avena barbata Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Above the quarry. Comment
  UCD143808  Avena brevis John Thomas Howell 1954-6-16 30003 San Mateo Ralston Ave. at 6th, Belmont. Comment
  POM289916  Baccharis douglasii Lyman Benson 1937-7-25 8471 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  RSA418224  Baccharis douglasii Edith A. Purer 1932-7-18 16266 San Mateo Near Pigeon Point Comment
  JROH539  Baccharis glutinosa John Hunter Thomas 1981-9-24 20751 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC893653  Baccharis glutinosa Roxana Stinchfield 1915-10-14 262 San Mateo Santa Cruz Mountain Peninsula, San Francisquito Creek Comment
  CAS-BOT-BC99507  Baccharis pilularis Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo Radio Road, San Bruno Mountains Comment
  CAS-BOT-BC99529  Baccharis pilularis Carl B. Wolf 1930-11-5 1807 San Mateo 4 mi. so. of Pescadero 7 Comment
  CAS-BOT-BC99534  Baccharis pilularis George Oberlander 1951-7-12 1211 San Mateo San Andreas Valley Comment
  CAS-BOT-BC99536  Baccharis pilularis Carl B. Wolf 1934-11-9 6240 San Mateo 200 yds. south of Pigeon Point Lighthouse 15 Comment
  RSA128829  Baccharis pilularis W. R. Dudley 1894-12-13 s.n. San Mateo Above Preston's, La Honda Road Comment
  UC484307  Baccharis pilularis Carl B. Wolf 1930-11-5 San Mateo 4 mi s Pescadero 7 Comment
  UC942900  Baccharis pilularis Lewis S. Rose 1949-9-20 49181 San Mateo Sharp Park Comment
  RSA38968  Baccharis pilularis Edith A. Purer 1933-8-4 5409 San Mateo Clay hillside near Baden Station Comment
  JROH554  Baccharis pilularis subsp. consanguinea John Hunter Thomas 1988-10-17 24599 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC16628  Barbarea orthoceras Fred Hemphill 1973-5-6 748 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  UCR279901  Barbarea orthoceras var. dolichocarpa Peter Rubtzoff 1975-5-21 7962 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  UCR101678  Bellardia trixago George K. Helmkamp, E. A. Helmkamp 1998-5-16 3737 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  CAS-BOT-BC100194  Bellis perennis John H. Thomas 1974-5-7 17326 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school Comment
  CAS-BOT-BC100195  Bellis perennis George Oberlander 1950-5-6 864 San Mateo on South Cahill Ridge Comment
  CAS-BOT-BC344843  Bellis perennis Peter Rubtzoff 1976-3-14 8443 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  SJSU946  Berberis darwinii W. M. Bybee 1948-2-20 San Mateo grounds of residence, Burlingame Comment
  RSA681564  Berberis nevinii Annuschka Deb 1989-7-14 287 San Mateo YBN Demonstration Garden. (Yerba Buena Nursery) Comment
  CAS-BOT-BC75876  Berberis pinnata John H. Thomas 1958-2-15 6990 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 182 Comment
  JROH1320  Berberis pinnata subsp. pinnata H. B. Hannibal 1910-10-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Sandstone Cave Comment
  JROH1322  Berberis pinnata subsp. pinnata John Rawlings 2007-4-1 0909 San Mateo Jasper Ridge Biological Preserve, Stanford University. Intersection Trail 1 and Trail 5. 84 Comment
  UC1191932  Berula erecta Malcolm A. Nobs, S. Galen Smith 1949-8-25 1561 San Mateo at Sharp Park Sharp Park Comment
  RSA130356  Boisduvalia densiflora Roxana S. Ferris 1930-9-3 2044 San Mateo Santa Cruz Mountain Peninsula: Upper Mud Lake. Coal Mine Ridge Comment
  CAS-BOT-BC28211  Bolboschoenus fluviatilis Ida R. Hayward 1927-7-4 s.n. San Mateo By road crossing Crystal Springs Lake. Comment
  SJSU15761  Bolboschoenus maritimus subsp. paludosus Toni Corelli 2009-9-22 431 San Mateo Pomponio State Beach west of Hwy. 1 4 Comment
  CAS-BOT-BC280862  Bolboschoenus maritimus subsp. paludosus Elizabeth McClintock; Paul Reeberg 1989-5-2 s.n. San Mateo San Bruno Mountains. PG&E Marsh 4 Comment
  UCD140047  Bolboschoenus robustus Herbert L. Mason; Verne Grant 1946-8-28 13077 San Mateo mouth of Tolay Creek. Comment
Read comments
Aug 16 2015
  CAS-BOT-BC95347  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo La Honda Comment
  CAS-BOT-BC417697  Boykinia occidentalis John H. Thomas 1961-6-20 9554 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks. 152 Comment
  CAS-BOT-BC389695  Boykinia occidentalis Mary K. Wicksten 1975-6-14 118 San Mateo Memorial Park Comment
  CAS-BOT-BC420227  Boykinia occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Banks of Pescadero Creek above Iverson's Comment
  RSA120720  Boykinia occidentalis S. S. Tillett, I. Sternback 1956-6-25 548 San Mateo Patterson Creek on Middleton property just above entrance to Portola State Park. 366 Comment
  CAS-BOT-BC145406  Brachypodium distachyon Peter H. Raven 1957-6-30 11015 San Mateo 1.8 mile east of Pescadero on road to La Honda. Comment
  JROH4858  Brachypodium distachyon John Hunter Thomas 1989-5-9 24725 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD57119  Brachypodium distachyon Peter H. Raven 1957-6-30 11015 San Mateo 1.8 miles east of Pescadero on road to La Honda. Comment
  CDA36481  Brachypodium sylvaticum Ellen Gartside 2011-7-28 s.n. San Mateo Woodside; Old La Honda Rd., on deer trail north of dirt road to Thornewood. Comment
  UC2049865  Brassica nigra H. W. Johansen 1955-4-10 48 San Mateo Pescadero Creek Road, about 4 miles E of Pescadero Comment
  JROH1456  Brassica nigra John H. Thomas 1967-3-26 12419 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC36791  Brassica rapa Reed Clark Rollins 1941-2-23 2940 San Mateo 10 miles south of San Francisco. Comment
  JROH4874  Briza maxima John Hunter Thomas 1989-5-5 24657 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD57153  Briza maxima Anonymous 1991-5-27 24 San Mateo Along Lake Merced, in Daly City. Comment
  CAS-BOT-BC145342  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  JROH4888  Briza minor John Hunter Thomas 1983-4-5 21320 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the low-flow crossing Comment
  SD227692  Briza minor G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3747 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  UCR121574  Briza minor George K. Helmkamp, E. A. Helmkamp 1999-6-28 5006 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  SD631  Brodiaea coronaria Ulysses S. Grant IV 1925-6-10 San Mateo Hillsborough. Comment
  SEINET10932599  Brodiaea elegans Walter 1919-6-9 Walter s.n. 1919 San Mateo Woodside Comment
  CAS-BOT-BC484342  Brodiaea elegans subsp. elegans Philip C. Wheeler 1965-6-21 s.n. San Mateo Sierra Point, San Bruno Mountain Comment
  CAS-BOT-BC484346  Brodiaea elegans subsp. elegans J. H. Thomas 1960-6-8 8774 A San Mateo Dry roadbank between Stanford and Searsville along San Hill road Comment
  SEINET3559685 Image available Brodiaea laxa Lewis S. Rose 1933-5-17 33169 San Mateo Redwood City. Comment
  JROH4586  Brodiaea terrestris subsp. terrestris Elmer I. Applegate 1895-5-11 700 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4590  Brodiaea terrestris subsp. terrestris John H. Thomas 1975-5-26 17918 a San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC72476  Brodiaea terrestris subsp. terrestris Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  CAS-BOT-BC144137  Bromus John H. Thomas 1965-4-29 10619 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  POM88018  Bromus berteroanus Le Roy Abrams 1902-5-4 2409 San Mateo Woodside. Comment
  UCSC007722  Bromus carinatus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC148978  Bromus carinatus var. carinatus John Thomas Howell 1960-4-20 35210 A San Mateo In garden of Frances Payne Stickney, Hillcrest Road, San Mateo. Comment
  CAS-BOT-BC149022  Bromus carinatus var. carinatus Ned Cahill 1974-5-30 317 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  JROH4893  Bromus carinatus var. carinatus John H. Thomas 1970-4-29 15618 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4897  Bromus carinatus var. carinatus John Hunter Thomas 1988-5-16 24466 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  UC1037111  Bromus carinatus var. carinatus Leo Whitney 1935-3-20 2268 San Mateo Bayshore Highway 10 mi s of Cliff House; San Francisco, Bayshore Highway Comment
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Nov 12 2011
  UC188898  Bromus carinatus var. maritimus Harley P. Chandler 1901-3-15 804 San Mateo w of Colma Comment
  UC1755115  Bromus catharticus Dean W. Taylor 1988-3-30 9492 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest; right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 176 Comment
  OBI23249  Bromus diandrus Ira L. Wiggins 1975-5-26 22153 San Mateo Bed of San Francisquito Crk, ca 150 m upstream from Chaucer/Pope St bridge, Menlo Comment
  UCSC007723  Bromus diandrus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC155139  Bromus hordeaceus Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point. Comment
  JROH4916  Bromus hordeaceus Duncan M. Porter 1960-5-5 678 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch Comment
  UCD164700  Bromus hordeaceus Peter Rubtzoff 1976-6-13 8634 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC162407  Bromus laevipes A. A. Heller 1907-5-23 8566 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  JEPS26837  Bromus madritensis subsp. madritensis Rimo Bacigalupi with L. Heckard 1961-5-14 7700 San Mateo near s end of Crystal Springs Lake along Canada Road, about San Francisco's Pulgas Water Temple Crystal Springs Lake; , Canada Road 95 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
  SJSU15908  Bromus maritimus John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1733 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  SEINET10520334  Bromus molliformis Delzie Demaree 1932-5-16 Demaree 9141 San Mateo Spring Valley Road. Comment
  SEINET3923660  Bromus mollis K. Harper 1984-4-25 84 -6 San Mateo Along crest of Jasper Ridge, Research Preserve, Stanford University.; 0 Comment
  SEINET10933427  Bromus rigidus Delzie Demaree 1932-5-12 Demaree 9128 San Mateo Stanford Farm. Dry situations. 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
  CAS-BOT-BC161750  Bromus rubens Fred Hemphill 1973-5-14 811 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC161753  Bromus rubens Ned Cahill 1974-4-30 217 San Mateo Near the inersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC185393  Bromus vulgaris W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Ridge between Butano and Pescadero Creek. Comment
  SEINET3921935  Bromus willdenowii Robert A. Norris 1984-5-9 4730 San Mateo By Olivet Memorial Park Throughway, Colma.; 0 Comment
  CAS-BOT-BC233707  Buddleja davidii John H. Thomas 1966-9-11 12390 San Mateo 1 mile westward as measured along the road from the La Honda - Pescadero Road intersection Comment
  CHSC81474  Cakile maritima Sabrina Wright; Brandi Pedigo, Jessica Wright, Nicky Wright 2000-3-4 San Mateo Rockaway Beach, Pacifica. 0 Comment
  RSA98363  Cakile maritima var. maritima I. L. Wiggins 1949-7-2 12196 San Mateo Pescadero Beach. Comment
  HSC9414  Calamagrostis nutkaensis C. B. Wolf 1927-6-4 San Mateo S of Pescadero Comment
  RSA17938  Calamagrostis nutkaensis C. B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo Pescadero. Comment
  CDA31267  Calendula arvensis J. Eide 2010-2-19 PDR# 1527850 San Mateo East Palo Alto: in residential garden. 0 Comment
  JROH1635  Callitriche marginata John H. Thomas 1968-4-13 14290 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1636  Callitriche marginata John H. Thomas 1970-4-4 15544 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC570759  Callitriche marginata H. L. Mason 1927-4-23 3697 San Mateo Pescadero Creek near Bloomquist's Mill Comment
  CAS-BOT-BC492214  Calochortus albus Fred Hemphill 1973-5-6 757 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH4608  Calochortus albus John Hunter Thomas 1981-4-30 20520 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3559526 Image available Calochortus albus Lewis S. Rose 1932-5-24 32277 San Mateo Portola. Comment
  CAS-BOT-BC492204  Calochortus albus Josephine D. Randall 1907-6-8 219 San Mateo Redwood Grove in Portola Valley Comment
  JROH4619  Calochortus argillosus John H. Thomas 1962-5-31 9893 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12044654  Calochortus coeruleus J. D. Randall 1907-1 224 San Mateo Kings Mt Comment
  JROH4633  Calochortus luteus John H. Thomas 1973-6-10 16817 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4637  Calochortus luteus John Hunter Thomas 1981-5-25 20628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23982  Calochortus luteus Mary Katherine Wicksten 1971-6-17 40 San Mateo Huddart Park, grassy hill above Oak Area Comment
  CAS-BOT-BC493993  Calochortus tolmiei Carl B. Wolf 1929-5-22 3722 San Mateo Near base of LaHonda grade, Santa Cruz Mts. 182 Comment
  HSC23996  Calochortus tolmiei Mary Katherine Wicksten 1971-6-22 86 San Mateo Huddart Park, by rd. to family campground Comment
  SJSU10003  Calochortus tolmiei L. S. Chan 1955-6-4 123 San Mateo Kings Mt Rd 1.5 mi W of woodside 243 Comment
  SEINET12044558  Calochortus venustus L. S. Rose 1931-1 s.n. San Mateo Redwood City 610 Comment
  JROH562  Calycadenia multiglandulosa John H. Thomas 1967-11-5 14128 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET8734701 Image available Calycadenia multiglandulosa L. S. Rose 1941-1 41268 San Mateo west of Redwood City, Emerald Lake 120 Comment
  POM351403  Calycadenia multiglandulosa subsp. cephalotes L. S. Rose 1937-9-21 37658 San Mateo Emerald Lake, west of Redwood City. 183 Comment
  CHSC42068  Calystegia purpurata Rusti Gammon 1986-3-30 13 San Mateo Ca. 8.1 mi sw of Saratoga, 4.1 mi w off Hwy 9. 569 Comment
  RSA10276  Calystegia purpurata H. A. Barker 1927-5-14 676 San Mateo North of Half Moon Bay. Comment
  CAS-BOT-BC224662  Calystegia purpurata subsp. purpurata Fred Hemphill 1973-5-6 764 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC224667  Calystegia purpurata subsp. purpurata Paul Arnaud 1941-5-3 s.n. San Mateo Redwood City, Hills, Jefferson Avenue Comment
  JROH1841  Calystegia purpurata subsp. purpurata John H. Thomas 1968-5-22 14457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC224647  Calystegia purpurata subsp. purpurata Mary Helen Kelson 1956-6-2 229 San Mateo Page Mill Road, 3 miles from Skyline Boulevard 213 Comment
  UC465972  Calystegia soldanella Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  JEPS112711  Calystegia subacaulis Dean W. Taylor 1994-5-10 14267 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  CAS-BOT-BC224345  Calystegia subacaulis subsp. subacaulis A. D. E. Elmer 1903-6-1 4826 San Mateo Crystal Springs Lake Comment
  POM32415  Camissonia micrantha A. D. E. Elmer 1903-05 4813 San Mateo San Pedro. Comment
  HSC16509  Camissonia ovata R. S. White 1965-4-19 42 San Mateo 4 mi. W of the Standford Golf Course on Sand Hill Rd. Comment
  CHSC22126  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Robert A. Schlising; Glenn Keator 1962-2-3 2042 San Mateo Coast Ranges. Sand dunes along Hwy 1, 3.9 mi N of jct with Bonnie Doon Road. Comment
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Sep 4 2011
  UC306754  Campanula prenanthoides A. D. E. Elmer June, 1903 4283 San Mateo Pescadero Creek Comment
  SEINET10463066  Campanula prenanthoides Wolf 1927-8-13 WOLF 714 San Mateo Summit La Honda Grade Comment
  SEINET10463364  Campanula prenanthoides Elvander 1970-7-5 ELVANDER 287 San Mateo 1 mile on Water Pant road from intersection with entrance to Butano State Park. Sandy loam, redwood forest. 152 Comment
  JROH1476  Capsella bursa-pastoris John Hunter Thomas 1983-4-5 21324 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  JROH1485  Cardamine californica John Hunter Thomas 1983-4-5 21332 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1486  Cardamine californica John Hunter Thomas 1987-4-7 24176 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204309  Cardamine californica var. integrifolia I. L. Wiggins 1931-2-21 5089 -a San Mateo Pescadero Beach, 0.5 mile N of Pebble Beach hotel. Comment
  RSA3919  Cardamine californica var. integrifolia Josephine Randall 1907-6-8 118 San Mateo Portola. Santa Cruz Peninsula. Comment
  UC1301008  Cardamine californica var. integrifolia Helen K. Sharsmith 1963-2-16 5132 San Mateo slopes San Bruno Mountain (above Daly City); San Francisco Bay Region, , Daly City 106 Comment
  CAS-BOT-BC37984  Cardamine oligosperma John H. Thomas 1956-4-7 5612 B San Mateo Jasper Ridge, about 3.5 miles southwest of Stanford University. 182 Comment
  CAS-BOT-BC37986  Cardamine oligosperma John H. Thomas 1963-5-20 10119 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles northwest of Santa Cruz. Comment
  JROH1490  Cardamine oligosperma L. R. Abrams 1916-3-26 5586 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH1492  Cardamine oligosperma John H. Thomas 1968-3-17 14182 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1504  Cardamine oligosperma John Hunter Thomas 1991-4-11 24982 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  POM272675  Cardamine oligosperma Lyman Benson 1929-3-2 990 San Mateo Hill east of Lake Searsville. Comment
  CDA6894  Carduus tenuiflorus Agricultural Commissioner May 1955 San Mateo San Mateo. 0 Comment
  RSA22241  Carduus tenuiflorus J. T. Howell 1939-6-16 14741 San Mateo Skyline Blvd. near Crystal Springs Lake Comment
  RSA395824  Carduus tenuiflorus Cynthia Taylor 1971-6-12 163 San Mateo Corner of Bragado Road and Old Country Road, Belmont 6 Comment
  JEPS48963  Carex amplifolia James G. Daly 1934-1 424 San Mateo upper Corte de Madera Canyon Comment
  CAS-BOT-BC19319  Carex barbarae W. R. Dudley 1896-4-18 s.n. San Mateo The Santa Cruz Mountain Peninsula. Pescadero. Pebbel Beach Pasture. Comment
  JROH4312  Carex barbarae John H. Thomas 1974-5-3 17240 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC823145  Carex barbarae Alice Eastwood, John Thomas Howell 1938-4-24 5247 San Mateo Lobitas Comment
  JROH4324  Carex bolanderi John Rawlings 2010-5-19 1050 A San Mateo Jasper Ridge Biological Preserve, Stanford University; 5 yards north (lakeside) of Leonard's Bridge 106 Comment
  CAS-BOT-BC18938  Carex densa John Thomas Howell 1938-5-1 13785 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC18943  Carex densa W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Above keepers house, San Andreas Reservoir. Comment
  RSA304146  Carex densa J. T. Howell 1938-5-1 13785 San Mateo Near South San Francisco. Comment
  SEINET3128102  Carex densa Unknown 1902-5-11 2444 San Mateo Crystal S? Comment
  UCD165066  Carex densa Peter Rubtzoff 1975-5-21 7976 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET10649935  Carex dudleyi Lewis S. Rose 1939-4-14 Rose 39064 San Mateo South San Francisco. 15 Comment
  SEINET10652800  Carex festiva Adolph D. E. Elmer Elmer 4429 San Mateo Crystal Springs Lake. Comment
  SEINET7560149 Image available Carex gracilior Charles Piper Smith 1905-4-26 874 San Mateo Portola Searsville Lake. 98 Comment
  CAS-BOT-BC21809  Carex harfordii Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo Bayshore Blvd. Comment
  SEINET8345404  Carex hirta LeRoy E. Detling 1934-3-7 1008 San Mateo none. Comment
  CAS-BOT-BC119446  Carex nudata W. R. Dudley 1903-6-6 s.n. San Mateo Below Iversons near margin of Peter;s Creek at mouth. Comment
  UCR279853  Carex obnupta Peter Rubtzoff 1978-5-18 9174 San Mateo San Francisco Bay Region, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 220 Comment
  CAS-BOT-BC176400  Carex obnupta Peter Rubtzoff 1976-6-30 8711 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC176410  Carex obnupta Peter Rubtzoff 1978-5-18 9173 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC118332  Carex praegracilis W. R. Dudley 1906-6-12 s.n. San Mateo In meadow on Mt. side W of Trippstore, Woodside. Comment
  CAS-BOT-BC117643  Carex serratodens LeRoy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  CAS-BOT-BC117651  Carex serratodens Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside. 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
  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
  UCR279903  Carex subbracteata Peter Rubtzoff 1975-5-21 7975 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  CAS-BOT-BC116822  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5256 San Mateo Pescadero Comment
  CAS-BOT-BC116827  Carex subbracteata var. subbracteata W. R. Dudley 1908-6-26 s.n. San Mateo Edge of Pond, near Coal Mine Ridge Road. Comment
  RSA119340  Carex tumulicola S. S. Tillett, I. Sternback 1956-6-25 543 San Mateo On Middleton property S of road to Portola State Park, just before entrance; in secondary redwood forest. 396 Comment
  CAS-BOT-BC230110  Carpobrotus chilensis Elsie Zeile 1909-8-23 s.n. San Mateo Granada Comment
  UCSC007729  Carpobrotus chilensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SJSU7602  Carpobrotus edulis E. P. Ryan 1965-4-25 San Mateo 1 mi N of Pigeon Point Lighthouse Comment
  JEPS86183  Castilleja L. R. Heckard 1988-5-18 6677 San Mateo ca 0.8 mi below Skyline Blvd. (Old La Honda Rd); Santa Cruz Mtns. 520 Comment
  POM15472  Castilleja affinis C. F. Baker 1903-4-6 1877 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  UCR71531  Castilleja affinis Rimo Bacigalupi, J. R. Sweeney 1954-8-3 4741 San Mateo Upper part of Tunitas Canyon Road, W slopes of Kings Mtn, about 3/4 mi west of Skyline Boulevard 579 Comment
  JEPS86226  Castilleja affinis subsp. affinis L. R. Heckard 1970-5-5 2451 San Mateo n side San Bruno Mountain (n spur) 60 Comment
  JEPS88798  Castilleja affinis subsp. affinis T. I. and F. M. Chuang 1991-6-29 7851 San Mateo ca .33 mi s Pescadero State Beach Comment
  JROH3934  Castilleja affinis subsp. affinis Joseph J. Schweitzer 1951-4-21 36 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH3938  Castilleja affinis subsp. affinis John H. Thomas 1955-5-6 5013 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH5776  Castilleja affinis subsp. affinis John Rawlings 2016-3-22 1700 San Mateo Jasper Ridge Biological Preserve, Stanford University; near high point of steep serpentinite bank south of Bear Creek 95 Comment
  UC138696  Castilleja affinis subsp. affinis C. F. Baker 1902-4-6 464 San Mateo Crystal Springs Lake Comment
  JROH3954  Castilleja attenuata John H. Thomas 1961-4-29 9186 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3958  Castilleja attenuata John H. Thomas 1974-4-19 17164 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3960  Castilleja attenuata John H. Thomas 1974-4-25 17193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3962  Castilleja attenuata John Hunter Thomas 1978-4-22 19110 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS86228  Castilleja densiflora subsp. densiflora L. R. Heckard 1970-5-5 2453 San Mateo Brisbane, ne edge of San Bruno Mountain San Bruno Mountain Comment
  JROH3974  Castilleja densiflora subsp. densiflora John H. Thomas 1956-4-7 5621 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH3984  Castilleja densiflora subsp. densiflora John Hunter Thomas 1983-4-3 21308 San Mateo Jasper Ridge Biological Preserve, Stanford University; along beach near Searsville Lab Comment
  JEPS20314  Castilleja densiflora subsp. densiflora Lewis S. Rose 1956-5-7 56064 San Mateo w of San Mateo (Skyline Blvd) 182 Comment
  SJSU11539  Castilleja exserta subsp. exserta S. H. Casey 1969-5-18 253 San Mateo San Bruno Mt Comment
  SD37772  Castilleja rubicundula subsp. lithospermoides Marie Cummings 1933-5-23 3712 San Mateo Spring Valley Lakes Comment
  JEPS34452  Castilleja subinclusa subsp. franciscana L. R. Heckard 1963-7-18 1340 San Mateo just e Pigeon Point lighthouse (along old Coast Hwy 1) Comment
  JEPS3599  Castilleja subinclusa subsp. franciscana J. H. Thomas 1949-6-4 597 San Mateo 4 mi w La Honda (on road to Pescadero) Comment
  CAS-BOT-BC32580  Castilleja wightii Adolph Daniel Edward Elmer 1903-7-1 4761 San Mateo San Pedro 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
  NY68181  Castilleja wightii A. D. E. Elmer 07 1903 4761 San Mateo San Pedro Comment
  RSA428365B  Castilleja wightii Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  UC1039783  Castilleja wightii H. L. Mason 1927-4-24 3699 San Mateo Mouth of San Gregorio Creek Comment
  RSA10286  Castilleja wightii H. A. Barker 1927-5-14 668 San Mateo North of Half Moon Bay. Comment
  RSA18294  Castilleja wightii Carl B. Wolf 1927-6-21 423 San Mateo East slope of Kings Mt. Comment
  SEINET8357659  Castilleja wightii A. D. E. Elmer 1903-1 4761 San Mateo San Pedro. Comment
  UCD123037  Castilleja wightii Lewis S. Rose 1965-4-22 65026 San Mateo San Bruno Mountain, south of parking lot. 365 Comment
  CAS-BOT-BC40400  Caulanthus lasiophyllus L. R. Abrams 1920-6-1 7503 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City. Comment
  CAS-BOT-BC48309  Ceanothus cuneatus J. H. Thomas 1949-4-1 208 San Mateo west of Redwood City Comment
  JROH3520  Ceanothus cuneatus var. cuneatus John H. Thomas 1955-5-6 5016 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3522  Ceanothus cuneatus var. cuneatus Duncan M. Porter 1961-2-8 741 San Mateo Jasper Ridge Biological Preserve, Stanford University. N slope of ridge below picnic area near crest at N end of ridge Comment
  SBBG33462  Ceanothus cuneatus var. dubius A. D. E. Elmer -Mar-1903 San Mateo Portola Comment
  CAS-BOT-BC49652  Ceanothus foliosus var. foliosus J. H. Thomas 1949-4-14 280 San Mateo Kings Mountain. Roadside near Woodside. Comment
  CAS-BOT-BC51607  Ceanothus oliganthus var. sorediatus Margaret A. Barry 1937-5-8 82 San Mateo Woods on Coal Mine Ridge Comment
  UC1071332  Ceanothus oliganthus var. sorediatus C. R. Clar 1928-11-6 7 San Mateo Langley Hills Santa Cruz quad. 670 Comment
  UCSB18628  Ceanothus oliganthus var. sorediatus Schulte, John 1963-4-14 San Mateo between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  POM299416  Ceanothus oliganthus var. sorediatus L. S. Rose 1942-4-19 42012 San Mateo Santa clara County: Saratoga Road, 2 miles E of the Skyline Blvd edge of woods with Lithocarpus densiflorus, Arbutus Menziesii and Sequoia sempervirens Comment
  CAS-BOT-BC51240  Ceanothus papillosus Mita C. Daniel 1915-4-10 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC51850  Ceanothus papillosus Charles Piper Smith 1905-4-26 868 San Mateo Woodside. Cahil Ridge. King's Mt. Road 365 Comment
  CAS-BOT-BC51851  Ceanothus papillosus W. R. Dudley 1902-5-17 s.n. San Mateo Kings Mountain Road 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-BC52285  Ceanothus thyrsiflorus C. F. B. 1902-4-12 511 San Mateo La Honda Comment
  CAS-BOT-BC52289  Ceanothus thyrsiflorus David D. Keck 1932-5-11 1773 San Mateo Three miles West of Kings Mountain, on road to Tunitas, west slope of Santa Cruz Mountains 457 Comment
  CAS-BOT-BC52297  Ceanothus thyrsiflorus R. Bacigalupi 1922-3-1 s.n. San Mateo lagoon Arroyo de los Frijoles Comment
  CAS-BOT-BC52304  Ceanothus thyrsiflorus A. D. E. Elmer 1903-6-1 4603 San Mateo Lake San Andreas Comment
  CAS-BOT-BC52306  Ceanothus thyrsiflorus Mrs. Ernest Meiere 1920-5-2 s.n. San Mateo Los Altos Comment
  HSC18329  Ceanothus thyrsiflorus L. S. Rose 1963-4-27 63004 San Mateo La Honda 122 Comment
  UC1174506  Ceanothus thyrsiflorus LeRoy Abrams 1902-5-20 2463 San Mateo King's Mountain Comment
  UCR104956  Ceanothus thyrsiflorus Tom Paradise 1993-5-3 12 San Mateo Woodside. Purisima Creek Redwoods Open Space Preserve. Skyline Boulevard at Tunitas Creek Road 631 Comment
  UC30907  Centaurea calcitrapa Alice Eastwood 1896-9-1 San Mateo on the road to Crystal Springs Comment
  UC91552  Centaurea calcitrapa J. W. Congdon 1901-7-27 San Mateo San Mateo Comment
  CAS-BOT-BC274589  Centaurea calcitrapa H. L. Mason 1921-10-1 s.n. San Mateo County Hospital, Belmont-Crystal Springs Rd Comment
  CDA38622  Centaurea stoebe subsp. micranthos D. Petersen 2012-9-17 PDR# MVAP 06098624 San Mateo Hillsborough; off of Polhemus Road; south shaft of New Crystal Springs Bypass Tunnel Project's muck disposal site (aka the upper terrace). 0 Comment
  UCR123143  Centaurium muehlenbergii George K. Helmkamp, E. A. Helmkamp 2001-6-2 6795 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  CAS-BOT-BC272819  Centromadia parryi subsp. parryi Lewis S. Rose 1931-8-28 s.n. San Mateo Salada Comment
  SEINET3385989 Image available Centromadia pungens Lewis S. Rose 1938-8-18 38231 San Mateo Open fields. 6 Comment
  CAS-BOT-BC279329  Centromadia pungens subsp. pungens L. R. Abrams 1903-9-27 4017 San Mateo Menlo Park Comment
  OBI16134  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Blurlingame, Trousdale Dr. & Calif dr. 9 Comment
  UC894337  Centromadia pungens subsp. pungens Roxana Stinchfield 1915-9-19 250 San Mateo fields near Salt Marshes; Palo Alto Comment
  CAS-BOT-BC388390  Cerastium glomeratum Fred Hemphill 1973-4-15 670 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC388393  Cerastium glomeratum Margaret A. Barry 1937-5-15 89 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC166933  Cerastium holosteoides Peter Rubtzoff 1977-11-24 9141 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH3628  Cercocarpus betuloides var. betuloides John Hunter Thomas 1987-5-19 24297 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3631  Cercocarpus betuloides var. betuloides John Hunter Thomas 1989-5-30 24754 San Mateo Jasper Ridge Biological Preserve, Stanford University. Knoll to the west of the dam Comment
  JROH1947  Chamaesyce maculata John Hunter Thomas 1990-7-28 24939 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA4770  Chamaesyce serpens A. Roach 1970-10-22 San Mateo Southern Pacific Railroad, Menlo Park. 0 Comment
  UC1191353  Chenopodium berlandieri Malcolm A. Nobs and S. Galen Smith 1949-8-26 1605 San Mateo marshy stream bank about 1 mi s Pigeon Point Comment
  UCSC007731  Chenopodium californicum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JEPS59761  Chenopodium rubrum L. M. Booth 1932-10-29 2116 San Mateo between San Bruno Mt. and R.R. track (bottom of dry pond); South San Francisco Comment
  CAS-BOT-BC497724  Chlorogalum pomeridianum Fred Hemphill 1973-5-14 806 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC497725  Chlorogalum pomeridianum Ned Cahill 1974-4-29 171 San Mateo Serpentine fields bordered by chaparral near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH4653  Chlorogalum pomeridianum var. pomeridianum John Hunter Thomas 1983-7-20 22903 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA489244  Chorizanthe membranacea C. Rose Broome, Cristalyn M. Cagle 1978-6-17 2166 San Mateo Nacimiento - Ferguson Road 3 miles east of its junction with California Highway 1, and 4.1 miles west of Nacimiento Guard Station, Los Padres National Forest 427 Comment
  CAS-BOT-BC389694  Chrysolepis chrysophylla Mary K. Wicksten 1970-8-14 63 San Mateo Archery Trail, Huddart Prk. Comment
  RSA121897  Chrysolepis chrysophylla C. M. Belshaw 1936-1-25 1462 San Mateo Kings Mountain road, 4.5 miles west of Woodside; South Coast Range. Comment
  SBBG39512  Chrysolepis chrysophylla L. S. Rose 1970-7-15 San Mateo Kings Mtn 914 Comment
  UC1135209  Chrysolepis chrysophylla var. chrysophylla C. M. Belshaw 1935-1-25 1461 San Mateo 4.5 mi w Woodside (on Kings Mt road); Santa Cruz Quad. 609 Comment
  UC91747  Cirsium brevistylum K. Brandegee 1893-5-28 San Mateo Comment
  CAS-BOT-BC100938  Cirsium fontinale var. fontinale John Thomas Howell 1932-10-19 10852 San Mateo Crystal Springs Lake Comment
  SJSU2899  Cirsium fontinale var. fontinale G. E. Pilz 1965-7-12 114 San Mateo E side Crystal Springs Reservoir in outer S Coast Ranges 121 Comment
  UC894974  Cirsium fontinale var. fontinale John Thomas Howell 1939-6-16 14743 San Mateo Crystal Springs Lake Crystal Springs Lake (along brooklet) Comment
  UC30812  Cirsium occidentale var. venustum Alice Eastwood 1896-5-1 San Mateo Crystal Springs Comment
  RSA18266  Cirsium occidentale var. venustum C. B. Wolf 1927-6-27 457 San Mateo Los Troncos Creek, 2 mi back of Stanford University. Comment
  CAS-BOT-BC280508  Cirsium quercetorum John H. Thomas 1955-4-6 4850 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  CAS-BOT-BC280511  Cirsium quercetorum J. H. Thomas 1958-6-11 7227 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  CAS-BOT-BC280520  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280523  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  CDA1534  Cirsium quercetorum T. C. Fuller 1971-6-1 19882 San Mateo Crystal Springs Reservoir E shore, 0.3 mi. SE of center causeway; Belmont. Comment
  RSA0070861  Cirsium quercetorum John H. Thomas 1958-6-11 7227 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  CAS-BOT-BC280518  Cirsium quercetorum John Thomas Howell 1939-6-16 14740 San Mateo Near San Andreas Lake Comment
  JROH636  Cirsium vulgare John H. Thomas 1970-7-5 15670 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285860  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
  RSA155840  Cirsium vulgare Peter H. Raven 1961-8-24 16585 San Mateo East side of Crystal Springs Lake Comment
  CAS-BOT-BC162603  Clarkia Paul Reeberg 1989-5-16 s.n. San Mateo Upper Cow Trough Ravine, near Ridge Trail - San Bruno Mountains 289 Comment
  UC1536828  Clarkia amoena Gordon H. True Jr. 1936-6-14 509 San Mateo Skyline-Salada Beach Road 365 Comment
  SEINET4900270  Clarkia cylindrica Paul D. Sorensen 1973-8-3 7337 San Mateo 1 mile W of junction with Page Mill Rd. and California 35 Comment
  CAS-BOT-BC172089  Clarkia davyi Peter H. Raven 1959-6-1 14455 San Mateo Pigeon Point Comment
  CAS-BOT-BC163962  Clarkia purpurea subsp. quadrivulnera A. A. Heller 1906-6-8 8382 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  CAS-BOT-BC163966  Clarkia purpurea subsp. quadrivulnera Ned Cahill 1974-4-30 220 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Area partly destroyed by road building. Comment
  JROH3009  Clarkia purpurea subsp. viminea John H. Thomas 1967-5-31 12935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC165123  Clarkia rubicunda Peter H. Raven 1957-6-24 10969 San Mateo 0.5 miles south of San Gregorio on old coast highway Comment
  CAS-BOT-BC165176  Clarkia rubicunda H. A. Dutton 1900-4-17 s.n. San Mateo Woodside Comment
  CAS-BOT-BC165177  Clarkia rubicunda A. D. E. Elmer 1903-6-1 4310 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC165155  Clarkia rubicunda E. K. Balls 1958-7-19 23570 San Mateo State Hwy. 5, 2 mi. nw. of jct. with road from Big Basin State Park 670 Comment
  CAS-BOT-BC165172  Clarkia rubicunda W. R. Dudley 1894-5-30 s.n. San Mateo Near Redwood City Comment
  RSA18508  Clarkia rubicunda Carl B. Wolf 1927-7-14 612 San Mateo Summit of Kings Mountain Rd. Comment
  UC917340  Clarkia rubicunda W. A. Harvey and J. M. Tucker 1948-6-29 1709 San Mateo just w Highway 5 (Skyline Boulevard) (beside road to Portola State Park) Comment
  CAS-BOT-BC439292  Claytonia exigua subsp. exigua Lewis S. Rose 1937-4-24 37227 San Mateo Emerald Lake. 106 Comment
  CAS-BOT-BC439288  Claytonia exigua subsp. exigua George Oberlander 1950-2-1 445 San Mateo San Francisco Watershed Reserve. Near south boundary Comment
  CAS-BOT-BC439805  Claytonia perfoliata Ned Cahill 1974-4-29 168 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  UCD100726  Claytonia perfoliata E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains, 0.25 mile from Summit Loop trailhead on Guadeloupe Canyon Road. Comment
  JEPS121443  Claytonia perfoliata subsp. perfoliata Adam C. Schneider with C. Matt Guilliams 2013-2-2 2 San Mateo Crystal Springs Reservoir, 100 yards west from the intersection of Lexington Ave. and Allegheny Way, Highlands-Baywood Park, CA. Comment
  JROH3349  Claytonia perfoliata subsp. perfoliata John H. Thomas 1977-4-8 18525 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET182860 Image available Claytonia perfoliata subsp. perfoliata John Campbell 1925-1-26 San Mateo Burlingame. Comment
  CAS-BOT-BC91482  Clematis lasiantha Elizabeth McClintock 1979-5-28 s.n. San Mateo Gilmore McDowell Property. Woodside. Comment
  JROH3410  Clematis lasiantha John H. Thomas 1966-4-29 11586 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3412  Clematis lasiantha D. E. Breedlove 1971-5-31 19378 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JEPS121481  Clinopodium douglasii Adam C. Schneider 2013-5-17 126 San Mateo Crystal Springs Reservoir Comment
  POM169898  Clintonia andrewsiana A. D. E. Elmer 1903-05 4331 San Mateo Butano Creek Comment
  CAS-BOT-BC499406  Clintonia andrewsiana A. D. E. Elmer 1903-5-1 4331 San Mateo Butano Creek Comment
  CAS-BOT-BC499407  Clintonia andrewsiana Mrs. Donahue 1921-5-30 s.n. San Mateo Kings Mt. Comment
  RSA130676  Collinsia heterophylla Josephine Randall 1907-6-8 384 San Mateo Portola Valley. Santa Cruz Peninsula. Comment
  RSA18322  Collinsia heterophylla Carl B. Wolf 1929-5-17 3714 San Mateo 1 mile W of Skyline Drive on Alpine Road. Comment
  CAS-BOT-BC240926  Collinsia multicolor Blanche Clear 1938-5-22 s.n. San Mateo On road to Emerald Lake Comment
  CAS-BOT-BC240927  Collinsia multicolor Robert F. Hoover 1941-4-23 4901 San Mateo San Mateo Creek below Crystal Springs Dam Comment
  POM15102  Collinsia multicolor C. F. Baker 1902-4-6 647 San Mateo Crystal Springs Lake. Comment
  SEINET4182808 Image available Conium maculatum Robert A. Norris 1985-10-11 4979 San Mateo San Francisco, near S end of Middle Lake, Chain of Lakes, Gold State Park, San Francisco F. Co., Calif. Fls. white. Comment
  SEINET4676141  Cordylanthus pilosus Lewis S. Rose 1941-8-9 41362 San Mateo Woodside.; 0 60 Comment
  JROH4029  Cordylanthus pilosus subsp. pilosus John H. Thomas 1974-8-11 17508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM263616  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside. 60 Comment
  RSA40318  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside. 549 Comment
  RSA412335  Cordylanthus pilosus subsp. pilosus E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel. Comment
  JEPS80892  Cordylanthus rigidus subsp. rigidus Monty Knudsen 1981-8-13 San Mateo Edgewood Park w of Redwood City; Edgewood Park Comment
  POM72033  Cordylanthus rigidus subsp. rigidus Alice Eastwood 1896-9-6 s.n. San Mateo Crystal Springs. Comment
  JROH4035  Cordylanthus rigidus subsp. rigidus Deane Bowers 1980-8-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; outskirts just down the road from the Escobar entrance Comment
  JEPS15884  Corethrogyne filaginifolia Edward Lee Greene 1886-6-22 San Mateo Crystal Springs Comment
  LA205836  Corethrogyne filaginifolia D. Keck; 1932-5-25 1785 San Mateo E side of Crystal Springs Lake Comment
  UC527527  Cornus glabrata C. B. Wolf 1931-8-20 San Mateo 2 mi. back of Stanford University (near Schenkel's Camp, Los Trancos Creek); Los Trancos Creek 91 Comment
  CAS-BOT-BC210354  Cornus sericea Lewis S. Rose 1956-5-7 56064 A San Mateo 3 mi. e. of Half Moon Bay 30 Comment
  CAS-BOT-BC210355  Cornus sericea J. H. Thomas 1954-4-3 3817 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  CAS-BOT-BC210468  Cornus sericea subsp. occidentalis W. R. Dudley 1895-6-8 s.n. San Mateo Santa Cruz Peninsula. Pescadero Creek at Camp near Iverson's Comment
  JROH1868  Cornus sericea subsp. sericea John Hunter Thomas 1981-5-5 20536 San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing Comment
  UC1543084  Coronopus didymus Donald G. Nelson 1940-7-7 695 San Mateo on road from Half Moon Bay to San Mateo (along Pilarcitos Creek, near Pilarcitos Creek Bridge, where creek forks northward); Pilarcitos Creek 76 Comment
  CAS-BOT-BC180280  Corylus cornuta subsp. californica Robert Setzer 1969-3-29 2137 San Mateo Colma Canyon along stream bank. San Bruno Mountain Comment
  CAS-BOT-BC180375  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1964-9-2 61 San Mateo On Mouth of Colma Canyon. San Bruno Mountain 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
  POM270392  Corylus cornuta var. californica Lyman Benson 1931-2-28 2613 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  SD27760  Corylus cornuta var. californica Carl B. Wolf 1927-2-26 223 San Mateo La Honda Grade 305 Comment
  RSA15260  Corylus cornuta var. californica C. B. Wolf 1927-2-26 223 San Mateo Near the road on the La Honda Grade. Comment
  SEINET12034013  Corylus rostrata var. californica Unknown 1930-1 7313 A San Mateo Los Francoo Woods 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-BC453502  Cotoneaster lacteus Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo Guadalups Parkway; San Bruno Mountains Comment
  JROH3642  Cotoneaster pannosus John Hunter Thomas 1983-4-28 21777 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near green shack Comment
  CHSC27886  Cotula coronopifolia Susan Perkins 1978-3-24 7 San Mateo San Gregorio Beach, at jct Hwys 1 and 84. 30 yds s of San Gregorio Creek. 6 Comment
  CAS-BOT-BC291449  Cotula coronopifolia W. R. Dudley 1897-5-1 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC291469  Cotula coronopifolia Elmer I. Applegate 1895-3-9 293 San Mateo Field near Woodside Comment
  CAS-BOT-BC291477  Cotula coronopifolia John Thomas Howell 1924-9-28 660 San Mateo Leslie Salt Rifinery, San Mateo Comment
  POM312498  Cotula coronopifolia Malcolm A. Nobs, S. Galen Smith 1949-8-26 1591 San Mateo Marshes at the mouth of Pescadero Creek. Comment
  CDA19795  Cotula mexicana D. Pendleton 2002-3-21 PDR 065823 San Mateo San Francisco Bay Area; Sharp Park Golf Course in Pacifica. 0 Comment
  RSA100981  Crassula aquatica G. Oberlander 1949-8-20 374 San Mateo San Andreas Lake, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC427832  Crassula connata John H. Thomas 1961-5-7 9260 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC427836  Crassula connata Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Near Guadalupe Road in Crocker Hills. Comment
  JROH3651  Crataegus monogyna John H. Thomas 1965-4-10 10560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM275977  Crataegus monogyna Lyman D. Benson 1930-5-3 2104 San Mateo Santa Cruz Mt. 244 Comment
  CAS-BOT-BC291510  Crepis capillaris Josephine D. Randall 1907-6-29 66 San Mateo Portola Road, Santa Cruz Peninsula Comment
  JROH1959  Croton setiger John H. Thomas 1974-10-26 17631 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS90291  Cryptantha clevelandii Dean W. Taylor 1989-8-1 10415 San Mateo saddle between North Peak and Montara Knob (Santa Cruz Mountains, Montara Mountain, dirt road serrving PG&E Half Moon Bay to Pacifica high-voltage transmission lines); Santa Cruz Mountains, Montara Mountain 518 Comment
  JROH1361  Cryptantha flaccida John Hunter Thomas 1991-5-2 25009 San Mateo Jasper Ridge Biological Preserve, Stanford University; near exclosure Comment
  JROH5669  Cryptantha microstachys John Rawlings 2014-5-6 1223 B San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  UC78697  Cryptantha torreyana T. S. Brandegee 1890-5-22 San Mateo La Honda Comment
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Feb 3 2010
  CAS-BOT-BC80788  Cupressus macrocarpa Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Guadalupe Rd. Plants of San Bruno Mountain. Comment
  CAS-BOT-BC80791  Cupressus macrocarpa John Thomas Howell 1957-5-8 32236 San Mateo Skyline Blvd. w. of San Bruno. Comment
  SEINET12278070  Cuscuta salina E. A. Purer 1933-1 5408 San Mateo Near Baden Station Comment
  RSA120949  Cynara scolymus J. T. Howell 1956-11-14 31961 San Mateo Bayshore Highway just south of Main Street, Redwood City. Comment
  HSC23980  Cynoglossum grande Mary Katherine Wicksten 1971-7-2 149 San Mateo Huddart Park, Miwok Flat Comment
  SD39210  Cynoglossum grande McCallum 1933-4-19 3703 San Mateo Woodside Comment
  SEINET12280949  Cynoglossum grande Unknown 1932-1 8924 San Mateo Comment
  SEINET5546120  Cynoglossum grande H. S. Gentry 1931-1 14 San Mateo Collected about 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  JROH4381  Cyperus eragrostis John Hunter Thomas 1982-11-6 21205 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake. Comment
  HSC23970  Cyperus eragrostis Mary Katherine Wicksten 1971-7-13 170 San Mateo Huddart Park by drinking fountain Comment
  CAS-BOT-BC133769  Cypripedium fasciculatum Miss. Barbara Donahoe; Miss. Louise Boyd 1923-4-18 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC435184  Cypselea humifusa George Oberlander 1949-8-20 372 San Mateo San Francisco Watershed Reserve. Upper Crystal Spr. Lake Comment
  JROH21  Cystopteris fragilis Lawrence J. Winship 1974-11-16 20 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC198194  Cytisus scoparius Phillip C. Wheeler 1965-4-27 s.n. San Mateo Sierra Point, Brisbane, San Bruno Mountain Comment
  CAS-BOT-BC198195  Cytisus scoparius Phillip C. Wheeler 1965-4-27 s.n. San Mateo Brisbane, San Bruno Mountain Comment
  RSA128366  Cytisus scoparius Peter H. Raven 1950-6-3 2259 A San Mateo Near San Andreas Lake. Comment
  CAS-BOT-BC189819  Dactylis glomerata W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath Ranch, vicinity of Baden. Comment
  JROH5017  Dactylis glomerata John Hunter Thomas 1977-6-16 18753 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval Comment
  JROH5025  Dactylis glomerata John Hunter Thomas 1987-4-30 24215 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA101030  Dactylis glomerata G. Oberlander 1950-5-21 960 San Mateo Under Douglas fir, Cahill Ridge, San Francisco Watershed Reserve Comment
  JROH5039  Danthonia californica John H. Thomas 1970-4-28 15606 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM199070  Danthonia californica var. californica A. D. E. Elmer 1903-06 4707 San Mateo Crystal Springs Lake. Comment
  SJSU15419  Datura stramonium Toni Corelli 2011-8-31 718 San Mateo Half Moon Bay east of of Hwy. 1 and south of Higgins Canyon Road 30 Comment
  UCD127385  Daucus carota Rimo Bacigalupi; G. Thomas Robbins 1955-8-4 5444 San Mateo along grade on Highway No. 1, just south of Pedro Valley. Comment
  SEINET12118157  Daucus pusillus Unknown 1932-1 9190 San Mateo Los Francos Woods Comment
  CHSC373  Deinandra corymbosa B. Richardson 1929-5-11 San Mateo Moss Beach. 6 Comment
  OBI16292  Deinandra corymbosa Lewis S. Rose 1965-9-4 65100 San Mateo Skyline blvd and Half Moon Bay Rd; Cahill Ridge 244 Comment
  UC702538  Deinandra corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach, open sandy coastal fields Moss Beach 16 Comment
  CAS-BOT-BC299199  Deinandra corymbosa subsp. corymbosa L. R. Abrams 1902-9-21 3000 San Mateo Bill Road, Crystal Lake Comment
  JROH681  Delairea odorata Cary Tronson 2007-11-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near horse trail along Corte Madera Creek, near the collection site of many-flowered tobacco Comment
  UCD95640  Delphinium californicum P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  CAS-BOT-BC9218  Delphinium californicum M. K. Curran 1884-1-1 s.n. San Mateo at Colma near San Francisco Comment
  RSA184849  Delphinium californicum L. S. Rose 1965-5-3 65058 San Mateo San Bruno Mountain, Colma Canyon. 61 Comment
  JROH3424  Delphinium californicum subsp. californicum Lyman Benson 1930-5-12 2127 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  CAS-BOT-BC9236  Delphinium decorum W. R. Dudley 1896-4-17 s.n. San Mateo Pasture near Pebble Beach, Pescodero Comment
  UC1046498  Delphinium decorum subsp. tracyi R. Bacigalupi, L. Constance, Ritchie and Sarah Bell 1951-3-25 3205 San Mateo near San Francisco; Colma Canyon 137 Comment
Read comments
Sep 27 2007
  CAS-BOT-BC10292  Delphinium hesperium Elizabeth McClintock 1979-5-28 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  JROH3442  Delphinium hesperium subsp. hesperium John H. Thomas 1974-5-29 17396 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9869  Delphinium nudicaule Oliver Norvell 1931-4-18 1417 San Mateo Kings Mountain road. Comment
  CAS-BOT-BC9870  Delphinium nudicaule Josephine D. Randall 1907-6-29 312 San Mateo Kings Mountain road. Comment
  POM177517  Delphinium nudicaule W. R. Dudley 1893-5-27 s.n. San Mateo Beyond King's Mt. Comment
  SBBG28536  Delphinium nudicaule W. R. Dudley 1893-5-27 San Mateo beyond King's Mtn Comment
  CAS-BOT-BC116529  Delphinium patens subsp. patens W. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Comment
  CAS-BOT-BC7930  Delphinium variegatum Adolph Daniel Edward Elmer 1903-5-1 4796 San Mateo Crystal Springs Lake Comment
  SJSU3145  Delphinium variegatum W. A. Dout 1957-5-10 20 San Mateo Emerald L district of Redwood City Comment
  POM270794  Delphinium variegatum subsp. variegatum Lyman Benson 1931-3-15 2638 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  CAS-BOT-BC389715  Dendromecon rigida Sharon Rogers 1966-4-1 105 San Mateo San Mateo Comment
  RSA15262  Dendromecon rigida Carl B. Wolf 1927-2-26 226 San Mateo On the La Honda grade Comment
  CAS-BOT-BC630  Dendromecon rigida subsp. rigida George Thomas Oberlander 1950-3-11 414 San Mateo Southern boundary on Cahill Ridge. Comment
  CAS-BOT-BC192600  Deschampsia cespitosa subsp. holciformis H. L. Mason 1921-5-28 s.n. San Mateo Pebble Beach near Pescadero Comment
  JROH5059  Deschampsia elongata John H. Thomas 1969-6-4 15115 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC876  Dicentra chrysantha George T. Ruddock Sept 1917 s.n. San Mateo San Carlos Peak Comment
  CAS-BOT-BC906  Dicentra chrysantha Alice Eastwood 1915-5-30 4519 San Mateo Mt. Diablo Comment
  CLARK-A1528-683  Dicentra formosa William Horn, Jr. 1963-4-13 630413 #1 San Mateo Hillsborough 30 Comment
  CAS-BOT-BC500894  Dichelostemma capitatum Fred Hemphill 1973-5-6 746 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC500895  Dichelostemma capitatum Fred Hemphill 1973-5-6 836 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  SEINET12044684  Dichelostemma capitatum R. S. Ferris 1921-1 2149 San Mateo San Bruno Mt. 183 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
  JROH4657  Dichelostemma capitatum subsp. capitatum John H. Thomas 1974-4-13 17148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM276991  Dichelostemma capitatum subsp. capitatum Lyman Benson 1931-3-15 2635 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  SBBG51309  Dichelostemma capitatum subsp. capitatum J. Doty 1969-3-24 583 San Mateo N side of Page Mill Rd, ca. 0.5 mi W of Foothill Expressway; Palo Alto Comment
  CAS-BOT-BC502166  Dichelostemma congestum Fred Hemphill 1973-4-22 730 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC502167  Dichelostemma congestum Fred Hemphill 1973-4-22 743 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  JROH4665  Dichelostemma congestum John Hunter Thomas 1982-4-23 20836 San Mateo Jasper Ridge Biological Preserve, Stanford University. Picnic area Comment
  JROH5079  Digitaria sanguinalis John Hunter Thomas 1981-9-24 20747 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC150457  Diplacus aurantiacus Viola Nichols 1911-5-6 1006 San Mateo Belmont, 2nd hill Comment
  JEPS47163  Dirca occidentalis W. L. Jepson 1922-3-19 9536 San Mateo Lake San Andreas Comment
  JROH4197  Dirca occidentalis Miss A. M. Patterson 1906-2-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG26820  Dirca occidentalis L. S. Rose 1939-4-12 39060 San Mateo Crystal Springs Lake 152 Comment
  UCR143110  Dirca occidentalis L. S. Rose 1933-6-9 33222 San Mateo San Francisco Bay Region, San Andreas Lake 305 Comment
  CDA39312  Disporum hookeri T. C. Fuller 1960-4-2 4079 San Mateo La Honda Rd., 1 mile north of La Honda. 0 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
  JROH3383  Dodecatheon hendersonii John H. Thomas 1967-3-26 12416 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC311084  Dodecatheon hendersonii A. D. E. Elmer April, 1903 4560 San Mateo Woodside Comment
  POM49825  Dodecatheon hendersonii subsp. cruciatum L. R. Abrams 1902-4-5 2311 San Mateo Searrvill Comment
  JROH1508  Draba verna John Hunter Thomas 1981-4-4 20256 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam in road Comment
  CDA39075  Dracunculus vulgaris M. K. Beyers 2013-5-31 s.n. San Mateo Montara State Beach, McNee Ranch Trail Trailhead. Comment
  CAS-BOT-BC389714  Drymocallis glandulosa Sharon Rogers 1966-4-23 s.n. San Mateo Area in Crystal Springs watershed, between North and South Gates of Filoli Estate Comment
  CAS-BOT-BC159546  Drymocallis glandulosa var. glandulosa John H. Thomas 1965-4-29 10600 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC159542  Drymocallis glandulosa var. glandulosa C. F. Leithold 1894-8-13 s.n. San Mateo Devil's Canyon, Black Mountain - Santa Cruz Peninsula Comment
  UC1128209  Drymocallis glandulosa var. wrangelliana H. S. Yates 1935-2-3 5009 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quadrangle Comment
  UC525498  Drymocallis glandulosa var. wrangelliana Ethel Crum 1932-4-17 1387 San Mateo Pebble Beach Road sw Pescadero (near ocean); sw of Pescadero 30 Comment
  CHSC39802  Dryopteris arguta Maxey-Jones 1928-5-21 San Mateo In La Honda Redwoods. Comment
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Jul 7 2010
  JROH28  Dryopteris arguta Lawrence J. Winship 1974-11-2 5 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH35  Dryopteris arguta John Hunter Thomas 1980-6-5 20000 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC1063782  Dryopteris arguta C. M. Belshaw 1935-1-25 1460 San Mateo 2.8 mi w Woodside; Santa Cruz Quadrangle 457 Comment
  CAS-BOT-BC67889  Dryopteris arguta W. R. Dudley 1897-1-11 s.n. San Mateo Santa Cruz Peninsula - Lower part of Butano Creek Comment
  CAS-BOT-BC67897  Dryopteris arguta Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain - Wax Myrtle Ravine, Six-Fern Rock Comment
  RSA693753  Dryopteris arguta C. B. Wolf 1928-3-14 1537 San Mateo La Honda grade in the Santa Cruz Mountains 152 Comment
  SEINET10530141  Dryopteris arguta Mary Susan Taylor 1978-8-30 Taylor 1861 San Mateo Comment
  SEINET11619629  Dryopteris arguta Unknown 1932-1 8921 San Mateo Woodside Comment
  POM281632  Dryopteris expansa Lyman Benson 1930-5-26 2139 San Mateo Stanford University, Lake Searsville 152 Comment
  UC830943  Dudleya farinosa Lewis S. Rose 1937-9-5 37646 San Mateo Mussel Rocks 60 Comment
  CAS-BOT-BC109694  Dudleya farinosa Ira L. Wiggins 1929-7-14 3805 San Mateo Bluffs above Pescadero sand Beach. Comment
  CAS-BOT-BC428359  Dudleya farinosa John H. Thomas 1963-7-19 10197 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC428364  Dudleya farinosa L. R. Abrams 1909-8-2 4272 San Mateo Santa Cruz Peninsula. Pebble Beach hotel, Pescadero Comment
  CAS-BOT-BC428365  Dudleya farinosa Carlyn Halde; Elizabeth McClintock 1963-6-23 s.n. San Mateo San Bruno Mountain Comment
  JROH4310  Echinodorus berteroi John Hunter Thomas 1992-7-24 25389 San Mateo Jasper Ridge Biological Preserve, Stanford University; in water and on mud near boat ramp Comment
  UCD61216  Ehrharta erecta Glen L. Holstein 1978-3-1 s. n. San Mateo Near Pescadero Point. Comment
  UC1100725  Eleocharis macrostachya Herbert L. Mason, Verne Grant 1946-8-28 13087 San Mateo S of San Francisco (Santa Cruz--Daly City Road # 5) Comment
  UC1811  Eleocharis macrostachya J. Burtt Davy 1893-6-21 764 San Mateo Lake San Andreas Comment
  JEPS83040  Elymus californicus Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 429 San Mateo near crest of Cahill Ridge (w of gravel road, 0.7 mi nw of gate and 3.3 km nnw of intersection of Cal Hwys 35 and 92, along Cahill Ridge to above Pilarcitos Lake); San Francisco Watershed Reserve 327 Comment
  SJSU11265  Elymus glaucus S. H. Casey 1980-6-13 1157 San Mateo Los Trancos Woods 609 Comment
  CAS-BOT-BC235209  Elymus multisetus David D. Keck 1932-5-6 1469 San Mateo Belmont Comment
  JROH5128  Elymus multisetus John Hunter Thomas 1981-5-19 20604 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5131  Elymus multisetus John Hunter Thomas 1986-6-7 24086 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA159423  Elymus multisetus John H. Thomas 1961-5-14 9384 B San Mateo Serpentine road bank and outcropping just north of dam on San Mateo Creek. 122 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
  UCR279842  Elymus repens Peter Rubtzoff 1977-6-21 9055 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  SJSU15315  Elymus trachycaulus subsp. trachycaulus John Rawlings 2014-5-28 1243 San Mateo In the vicinity of the Edgewood Preserve's West Kiosk (intersection of Edgewood and Serpentine Loop trails). 184 Comment
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Feb 18 2015
  SJSU15940  Elymus trachycaulus subsp. trachycaulus John Rawlings, Ken Hickman 2016-5-26 1816 A 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
  JROH5279  Elymus triticoides Toni Corelli 2006-5-30 311 San Mateo Jasper Ridge Biological Preserve, Stanford University; along roadside at junction of main gate Road L and Road K to Leonard's residence 115 Comment
  CDA2047  Elytrigia repens Bruce Martin Aug 1949 San Mateo Coastal; Half Moon Bay, near San Francisco (about 30 mi. So.) 0 Comment
  JROH3044  Epilobium brachycarpum John H. Thomas 1972-8-18 16152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA40475  Epilobium canum subsp. canum C. F. Leithold 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula: Devil s Canyon, branch of Pescadero and Mill Cr. Black Mt. Comment
  RSA140611  Epilobium ciliatum subsp. watsonii John H. Thomas 1959-7-8 8019 San Mateo Pescadero Beach. Comment
  RSA18463  Epilobium ciliatum subsp. watsonii Carl B. Wolf 1927-6-29 545 San Mateo South of Pebble Beach near Pescadero. Comment
  UC1191730  Epilobium ciliatum subsp. watsonii Malcolm A. Nobs and S. Galen Smith 1949-8-26 1585 San Mateo pond in sand dunes about 1 mi s Half Moon Bay Comment
  JROH3061  Epilobium densiflorum John H. Thomas 1971-8-7 16018 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  RSA785879  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
  JROH73  Equisetum telmateia subsp. braunii John Hunter Thomas 1982-11-6 21206 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake Comment
  JROH66  Equisetum telmateia subsp. braunii John H. Thomas 1974-5-3 17245 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Below dam. Comment
  RSA684684  Equisetum telmateia var. braunii J. Doty 1969-3-27 608 San Mateo S side of State Hwy 84, ca 500 W of Bridge No. 35-165, ca 6 miles E of State Hwy 1. Comment
  SEINET3866732  Equisetum telmateia var. braunii L. Thorne, N. Thorne 1990-7-4 14 San Mateo Butano Canyon above Pescadero.; 0 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
  JROH5142  Eragrostis pectinacea var. pectinacea John H. Thomas 1976-10-16 18407 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry delta in Searsville Lake at the mouth of Corte de Madera Creek. Comment
  POM356837  Erechtites glomeratus E. A. Purer 1933-8-13 5422 San Mateo Along roadside, near Belmont. Comment
  CAS-BOT-BC299882  Erechtites glomeratus Phillip C. Wheeler 1965-6-19 s.n. San Mateo Crocker Land Park, Brisbane, San Bruno Mountain Comment
  CAS-BOT-BC299886  Erechtites glomeratus Ira L. Wiggins 1934-8-11 6970 San Mateo Beside tannery, Redwood City Comment
  CAS-BOT-BC299887  Erechtites glomeratus Alice Eastwood 1915-6-13 s.n. San Mateo Granada Comment
  JROH3146  Eriastrum abramsii John H. Thomas 1961-6-7 9533 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU12768  Eriastrum abramsii Toni Corelli 1986-5-22 San Mateo Edgewood County Park near junction of Edgewood Rd & Hwy 280, Redwood City 219 Comment
  UC1347212  Eriastrum abramsii Lewis S. Rose 1936-5-28 36305 San Mateo w Redwood City; Emerald Lake 91 Comment
  CAS-BOT-BC300611  Erigeron foliosus var. franciscensis W. R. Dudley 1895-6-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of ridge near Searsville dam, Portola Valley Comment
  CAS-BOT-BC295089  Erigeron glaucus Elsie M. Zeile 1921-7-30 1058 San Mateo Salada Comment
  POM55669  Erigeron glaucus C. F. Baker 1902-10-1 1738 San Mateo Pillar Point. Comment
  UCD18550  Erigeron glaucus Roman Gankin 1950-7-9 22 San Mateo On a sea cliff outside city of Pescadero, overlooking the ocean. 6 Comment
  CAS-BOT-BC300064  Erigeron philadelphicus Philip Wheeler 1965-7-7 s.n. San Mateo San Bruno Mountain. April Brook Comment
  CAS-BOT-BC300065  Erigeron philadelphicus Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. Colma Canyon and April Brook junction Comment
  CAS-BOT-BC300246  Erigeron reductus var. angustatus John Thomas Howell 1930-11-9 s.n. San Mateo Crystal Springs Lake Comment
  JROH5627  Erigeron sumatrensis Ann Lambrecht 2006-11-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Behind outbuildings near caretaker's residence (Sector 29 D3) Comment
  CAS-BOT-BC216129  Eriodictyon californicum Walter Knight 1964-9-14 850 San Mateo Peak Mt., west of summit Comment
  JROH2719  Eriodictyon californicum John H. Thomas 1970-7-5 15667 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5904  Eriodictyon californicum M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail, west side of Searsville Dam Comment
  CAS-BOT-BC253242  Eriogonum fasciculatum var. foliolosum Claire Etienne 1973-5-1 s.n. San Mateo Ca. 1 mi. north of Jtn. with Hwy. 84 (to Woodside) on Hwy. 280 Comment
  CAS-BOT-BC250548  Eriogonum gracile John H. Thomas 1971-5-2 15823 San Mateo Near intersection of Canada and Edgewater [Edgewood?] roads. About 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC250550  Eriogonum gracile Ned Cahill 1974-10-8 383 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM165225  Eriogonum gracile var. gracile Edward L. Greene 1902-9-10 1675 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC251988  Eriogonum latifolium C. F. Baker 1903-6-30 3359 San Mateo Pilarcitos Comment
  CAS-BOT-BC251997  Eriogonum latifolium Elsie Zeile 1909-8-23 s.n. San Mateo Granada. Open sandy cliff, bordering beach Comment
  RSA18467  Eriogonum latifolium Carl B. Wolf 1927-6-29 541 San Mateo South of Pebble Beach near Pescadero. Comment
  CAS-BOT-BC251975  Eriogonum latifolium Phillip C. Wheeler 1965-5-18 s.n. San Mateo Base of the mountain adjacent to Olivet Cemetery Comment
  CAS-BOT-BC251981  Eriogonum latifolium Elsie M. Zeile 1921-7-30 s.n. San Mateo Salada Beach (slopes nr. road) Comment
  RSA162485  Eriogonum latifolium E. K. Balls 1963-5-22 12068 San Mateo 12.2 miles south from turn off to San Gregorio, State Highway #1 6 Comment
  UCSC007742  Eriogonum latifolium Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UCSC009195  Eriogonum latifolium Randall Morgan 2013-5-24 5531 San Mateo On steep, ocean-facing slope around 1+ mile inland, above upper Lake Lucerne Comment
  CAS-BOT-BC264774  Eriogonum luteolum Hester R. Davis 1920-6-1 177 San Mateo Back of Redwood City, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC264775  Eriogonum luteolum L. S. Rose 1941-9-2 41432 San Mateo Emerald Lake, west of Redwood City 90 Comment
  JEPS111096  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -4 San Mateo Edgewood County Park, along upper part of Clarkia Trail just as it enters chaparral Comment
  JEPS111097  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -3 San Mateo On north side of trail just inside Sunset (pedestrian) entrance of Edgewood County Park Comment
  POM165062  Eriogonum luteolum A. D. E. Elmer 1903-06 4309 San Mateo Belmont Comment
  SD38964  Eriogonum luteolum Edith A. Purer 1933-8-25 5510 San Mateo Near Schullser Blvd, on hillside, Skyline Blvd. Comment
  CAS-BOT-BC269001  Eriogonum nudum var. auriculatum George Oberlander 1949-6-25 215 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC269008  Eriogonum nudum var. auriculatum Ned Cahill 1974-10-8 384 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SD38941  Eriogonum nudum var. auriculatum Edith A. Purer 1933-8-25 5522 San Mateo Along roadside, Spring Valley Lakes Comment
  CAS-BOT-BC261390  Eriogonum nudum var. indictum Chester Dudley No date on label 15 San Mateo West slope San Carlos Mts. Comment
  CAS-BOT-BC304071  Eriophyllum confertiflorum Lewis S. Rose 1933-5-17 33176 San Mateo Redwood City Comment
  JROH703  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1976-5-26 18148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH707  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH708  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1980-5-8 19956 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC31696  Eriophyllum confertiflorum var. confertiflorum J. Burtt Davy 1893-6-17 772 San Mateo Belmont Comment
  CAS-BOT-BC301268  Eriophyllum lanatum var. arachnoideum Josephine D. Randall 1907-6-29 68 San Mateo Santa Cruz Peninsula. Kings Mt. Road Comment
  JROH723  Eriophyllum lanatum var. arachnoideum John Hunter Thomas 1989-6-17 24774 San Mateo Jasper Ridge Biological Preserve, Stanford University; near San Francisquito Creek Comment
  JROH725  Eriophyllum lanatum var. arachnoideum W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 from little serpentine hill toward San Francisquito Creek, on left before sharp turn going down to creek Comment
  CAS-BOT-BC301261  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1906-6-12 s.n. San Mateo W. Union Gulch, back of winery Comment
  CAS-BOT-BC301752  Eriophyllum latilobum S. Carlquist 1952-4-26 305 San Mateo On N. side of road to Half Moon Bay, 1 mi. e. of San Mateo Comment
  UC483493  Eriophyllum staechadifolium Ira L. Wiggins 1929-7-4 3793 San Mateo sea bluffs at Pescadero Beach Comment
  UCR121572  Eriophyllum staechadifolium George K. Helmkamp, E. A. Helmkamp 1999-6-28 5004 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC301964  Eriophyllum staechadifolium John H. Thomas 1963-7-19 10188 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  RSA479800  Eriophyllum staechadifolium Jerry A. Powell 1972-3-10 909 San Mateo Mt. San Bruno Comment
  CDA5406  Eriophyllum staechadifolium var. artemisiifolium Wm. Davis 1958-6-6 San Mateo Pedro Valley, Sharp Park. 0 Comment
  JROH2591  Erodium botrys John H. Thomas 1967-6-1 12948 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS121583  Erodium cicutarium Adam C. Schneider with C. Matt Guilliams 2013-3-9 33 San Mateo Crystal Springs Reservoir Comment
  RSA176420  Eryngium aristulatum var. aristulatum John H. Thomas 1964-7-9 10443 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  UC619415  Eryngium armatum Wilhelm N. Suksdorf 1913-6-23 278 San Mateo Crystal Springs Lake Comment
  JROH241  Eryngium jepsonii John H. Thomas 1977-4-28 18563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5549532  Erysimum capitatum H. S. Gentry 1931-1 7 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  CAS-BOT-BC54819  Erysimum franciscanum H. E. Parks; S. T. Parks 1930-3-10 0401 San Mateo Spring Valley Lakes. Comment
  CAS-BOT-BC54837  Erysimum franciscanum G. B. Rossbach 1955-3-26 576 San Mateo Upper north slope of San Bruno Mountain north of Radio tower. 335 Comment
  CAS-BOT-BC54865  Erysimum franciscanum G. B. Rossbach 1940-4-23 925 San Mateo About 1 mile inland, Montara Mountains, south of San Pedro Valley and northwest of Peak Mountain. 121 Comment
  CAS-BOT-BC54870  Erysimum franciscanum Craig Martz 1985-4-15 205 San Mateo South end of Devil's Slide, both sides of SR1. From coast to saddle between San Pedro and Montara Mountain. 304 Comment
  CAS-BOT-BC54871  Erysimum franciscanum J. H. Thomas 1960-3-11 8540 San Mateo Near intersection of Bunker Hill Road and Skyline Drive. 91 Comment
  UC1034937  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 900 a&b San Mateo 2.5 mi n Montara (near Devil's Slide, steep granitic slope above sea) Comment
  UC1084387  Erysimum franciscanum G. Thomas Robbins 1937-4-11 93 San Mateo meadow near Spring Valley Lakes (along road to Woodside) Comment
  CAS-BOT-BC54858  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-5-12 912 San Mateo Slope of headland above sea, Padro Point. Comment
  SJSU12766  Erysimum franciscanum S. L. Jones 1986-4-6 87 San Mateo Montara Mt 188 Comment
  CHSC59820  Erythranthe guttata Jan M. Karaz 1979-5-28 78 San Mateo 2.5 mi west of Hwy 280 towards San Francisco Bay on Farm Hill Blvd, along Stulsaft Creek in Stulsaft Park. Comment
  SEINET14046269 Image available Erythranthe guttata Ynez Whilton Winblad 1941-1 San Mateo 1 Mile north of Crystal Springs Res. Comment
  CAS-BOT-BC403534  Eschscholzia californica Le Roy Abrams 1902-5-11 2453 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC403535  Eschscholzia californica Margaret A. Barry 1937-4-21 20 San Mateo On Coal Mine Ridge Comment
  JEPS51735  Eschscholzia californica Dr. L. M. Newlon 1921-1 238 San Mateo sea shore from Salada to Mussel Comment
  JROH3099  Eschscholzia californica John H. Thomas 1975-5-26 17911 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3101  Eschscholzia californica John Hunter Thomas 1981-5-19 20610 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC204262  Eschscholzia californica A. D. E. Elmer June, 1903 4680 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC403546  Eschscholzia californica H. L. Mason 1922-4-1 s.n. San Mateo At Pigeon Point Light Comment
  CAS-BOT-BC403547  Eschscholzia californica John H. Thomas 1963-5-20 10099 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  RSA116735  Euonymus occidentalis W. R. Dudley 1910-5-26 s.n. San Mateo Los Trancos Creek, above Judge Allen's; Santa Cruz Mountain Peninsula. Comment
  CDA19846  Euphorbia oblongata D. Pendleton 2002-4-25 PDR 065843 San Mateo San Francisco Bay Area; Sandhill Rd, 0.25 mi N of Portola Rd, Woodside. 0 Comment
  CAS-BOT-BC389751  Euphorbia peplus J. Nieri 1953-1-28 s.n. San Mateo Redwood City Comment
  RSA14972  Euphorbia spathulata L. S. Rose 1935-5-4 35151 San Mateo Burlingame. Comment
  CAS-BOT-BC310720  Euthamia occidentalis James McMurphy 1905-10-29 s.n. San Mateo Above Portola Comment
  JROH727  Euthamia occidentalis John H. Thomas 1974-9-19 17600 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  JROH728  Euthamia occidentalis John H. Thomas 1974-9-19 17600 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  SEINET10614933  Euthamia occidentalis Delzie Demaree 1933-9-24 Demaree 10531 San Mateo Rolling bay area. Leepsic Junction. P.O. Baden. Comment
  JROH5171  Festuca arundinacea Toni Corelli 2001-5-5 245 San Mateo Jasper Ridge Biological Preserve, Stanford University; near concrete pad above CO2 area in disturbed grassland and planting of Pinus radiata 112 Comment
  JROH5469  Festuca bromoides Herbert Dengler 1965-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. S.E. of S. end of Searsville Lake. 152 Comment
  CAS-BOT-BC278346  Festuca californica subsp. californica Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC278347  Festuca californica subsp. californica Walter Knight; Irja Knight 1965-4-25 s.n. San Mateo San Bruno Mountain. Owl's Canyon Comment
  RSA135730  Festuca californica var. californica W. R. Dudley 1900-3-17 s.n. San Mateo Ravine north of Seal Cove. Comment
  CAS-BOT-BC278478  Festuca idahoensis Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain Comment
  SJSU15582  Festuca microstachys John Rawlings 2015-4-5 1453 San Mateo Along Edgewood Rd., San Mateo Co., California 146 Comment
  SD30561  Festuca perennis Edith A. Purer 1933-8-13 5418 San Mateo Santa Clara Valley near Belmont Comment
  JROH5181  Festuca rubra John Rawlings 2009-5-20 1043 San Mateo Jasper Ridge Biological Preserve, Stanford University; growing 5 yards from the paved lakeside road under the canopy of a valley oak (water spigot near tree trunk) 106 Comment
  RSA86699  Festuca rubra D. D. Keck 1932-5-6 1478 San Mateo Above Millbrae Highlands Comment
  SEINET175509 Image available Festuca rubra David D. Keck 1932-5-6 1478 San Mateo Above Millbrae Highlands Comment
  UCD66325  Festuca rubra P. B. Kennedy 1914-7-5 San Mateo Moss Beach, Pacific Grove. Comment
  JROH2975  Ficus carica John Hunter Thomas 1979-9-9 19710 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164213  Foeniculum vulgare Peter Rubtzoff 1978-9-16 9269 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; in upper part of East Fork Colma Creek canyon. Comment
  RSA134237  Fragaria californica John H. Thomas 1950-3-19 1299 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
  POM182829  Fragaria chiloensis R. L. Pendleton 1907-4-20 629 San Mateo Colma Comment
  JROH3671  Fragaria vesca John Hunter Thomas 1985-4-25 23564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC457519  Fragaria vesca subsp. californica Margaret A. Barry 1937-4-21 6 San Mateo woods on Coal Mine Ridge Comment
  SEINET11915234  Fragaria vesca subsp. californica L. S. Gill 1930-1 s.n. San Mateo Kuig Mt Comment
  CAS-BOT-BC52685  Frangula californica subsp. californica John H. Thomas 1961-5-7 9297 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH3548  Frangula californica subsp. californica John Hunter Thomas 1981-2-14 20211 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC53598  Frangula californica subsp. tomentella John H. Thomas 1971-5-2 15863 San Mateo near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  SEINET6671073 Image available Frankenia grandifolia Malcolm A. Nobs, S. Galen Smith 1949-1 1599 San Mateo Mouth of Pescadero Creek Comment
  SEINET3558049 Image available Frankenia grandifolia Lewis S. Rose 1933-7-20 33304 San Mateo Granada Sea Beach. Comment
  OBI75351  Frankenia salina Lewis S. Rose 1938-8-18 38230 San Mateo Brisbane 2 Comment
  RSA391413  Frankenia salina E. A. Purer 1933-8-13 s.n. San Mateo Belmont Comment
  SEINET6941833  Frankenia salina Robert A. Evers, Clara V. Evers 1975-8-24 115021 San Mateo Trailer Villa, Redwood City. Comment
  CAS-BOT-BC130122  Fritillaria affinis L. R. A. 1902-4-13 2339 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC130138  Fritillaria affinis Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  UC204192  Fritillaria affinis A. D. E. Elmer May, 1903 5045 San Mateo Portola Comment
  CAS-BOT-BC130126  Fritillaria affinis W. R. Dudley 1900-3-17 s.n. San Mateo On side of Ravine above Pillar Pt. and below Montara Mts. Comment
  CAS-BOT-BC130131  Fritillaria affinis Margaret A. Barry 1938-4-5 234 San Mateo Woods on Coal Mine Ridge Comment
  JROH4683  Fritillaria affinis John H. Thomas 1969-4-12 14893 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland below dam Comment
  JROH4687  Fritillaria affinis John Hunter Thomas 1985-4-27 23538 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12054472  Fritillaria affinis Unknown 1932-1 8965 San Mateo La Honda Road Comment
  SEINET3886766  Fritillaria lanceolata Lois R. O'Brien 1963-3-9 85 San Mateo San Bruno Mountains, on Radio Road 3 miles from Estrada Way.; 0 213 Comment
  HSC15425  Fritillaria liliacea J. Wendell Howe 1930-3-26 57 San Mateo Menlo Park Comment
  JEPS61918  Fritillaria liliacea W. L. Jepson 1914-3-22 5732 San Mateo Redwood City Comment
  SDSU20659  Fritillaria liliacea Sean Ryan 2011-3-18 76 San Mateo 65 yds S of Point Reyes-Petaluma Rd. approx. 0.66 mi W of its intersection with Nicasio Valley Rd. Nicasio Reservoir. 65 Comment
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  SEINET179619  Fritillaria liliacea H. E. Parks, S. T. Parks 1930-3-10 0400 San Mateo Spring Valley Lakes. 152 Comment
  UC1371057  Fritillaria liliacea Theodore F. Niehaus 1969-3-15 839 San Mateo 0.2 mi w of Polehouse Road (w side of Tower Road) Comment
  JEPS83069  Galium Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 434 San Mateo along crest of ridge w gravel road (ca 3.2 km nw of Pilarcitos Dam and 2.4 km wsw of San Andreas Dam); San Francisco Watershed Reserve, Fifield Ridge 388 Comment
  JROH3782  Galium aparine John H. Thomas 1966-4-22 11566 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR123146  Galium californicum subsp. californicum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6778 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
  CDA6674  Galium divaricatum J. T. Howell 1978-7-18 53188 San Mateo McClellan residence, 1356 Bernal Avenue, Burlingame. 0 Comment
  JROH3795  Galium murale John H. Thomas 1974-4-25 17217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3801  Galium murale John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD121881  Galium parisiense John Thomas Howell 1978-7-18 53188 San Mateo McClellan residence, 1356 Bernal Ave., Burlingame. Comment
  UC1143094  Galium porrigens var. porrigens H. S. Yates 1935-2-3 509 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quadrangle Comment
  CAS-BOT-BC303463  Gamochaeta ustulata John H. Thomas 1961-5-12 9325 San Mateo San Bruno Mt in N part of county 396 Comment
  JROH791  Gamochaeta ustulata John H. Thomas 1977-5-14 18608 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH794  Gamochaeta ustulata John Hunter Thomas 1980-5-8 19939 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1536872  Gamochaeta ustulata G. H. True Jr. 1936-5-14 502 San Mateo canyon s of Salada Beach 365 Comment
  CAS-BOT-BC344858  Gamochaeta ustulata Peter Rubtzoff 1975-10-24 8431 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  RSA116710  Garrya elliptica Josephine Randall 1910-02 s.n. San Mateo Los Traucos Creek. Comment
  UC306760  Garrya elliptica A. D. E. Elmer Feb 1903 4469 San Mateo Portola Comment
  RSA116655  Garrya elliptica Roxana Stinchfield 1914-2-7 13 San Mateo Judge Allens [difficult to read] Road. 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
  CAS-BOT-BC278665  Gastridium phleoides C. F. Leitholt 1894-7-30 s.n. San Mateo Santa Cruz Mountain Peninsula. La Honda Comment
  RSA18344  Gastridium phleoides C. B. Wolf 1927-7-14 597 San Mateo Summit of Kings Mountain Rd. Comment
  UCD119371  Genista monspessulana Annabelle Kleist 2008-5-28 Woo- 39 San Mateo Woodside, along Fox Hill Road. Comment
  SD227830  Geranium carolinianum G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3738 San Mateo Portola Valley: Golden Hills Rd. along Los Trancos Creek. 106 Comment
  JROH2613  Geranium dissectum John H. Thomas 1973-3-12 16486 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0028488  Geranium dissectum John H. Thomas 1964-4-30 10339 San Mateo Near intersection of El Camino Real and F St, Colma Comment
  UCR279851  Geranium dissectum Peter Rubtzoff 1976-5-22 8546 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  RSA0028485  Geranium dissectum Mabel Peirson 1926-2-24 6518 San Mateo Moss Beach. Comment
  JROH2626  Geranium molle John H. Thomas 1973-4-14 16556 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5790  Geranium purpureum Toni Corelli 2016-4-25 1250 San Mateo Jasper Ridge Biological Preserve, Stanford University; outside exclosure Rd. G 121 Comment
  JROH3169  Gilia John Hunter Thomas 1983-4-20 21534 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing Comment
  UC133800  Gilia achilleifolia subsp. multicaulis A. Eastwood 1893-5-19 San Mateo San Carlos Mt. Comment
  RSA185797  Gilia capitata subsp. abrotanifolia Josephine Randall 1908-5-1 s.n. San Mateo Corte de Madera Canon near Alpine RoadSanta Cruz Peninsula Comment
  CAS-BOT-BC303679  Glebionis coronaria Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo San Bruno Mts. N of school at Lower Guadalupe Canyon Parkway Comment
  CAS-BOT-BC303680  Glebionis coronaria J. H. Thomas 1961-5-7 9321 San Mateo San Bruno Mt. At W end of mountain 243 Comment
  CAS-BOT-BC303683  Glebionis coronaria Robert S. Jr. Cox 1946-8-10 s.n. San Mateo Half Moon Bay Comment
  JROH2023  Glycyrrhiza lepidota John H. Thomas 1962-7-15 9923 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  RSA184920  Gnaphalium chilense L. S. Rose 1966-8-6 66079 San Mateo Colma Canyon, San Bruno Mountain 122 Comment
  RSA22173  Gnaphalium luteoalbum L. R. Abrams, I. L. Wiggins 1939-6-3 431 San Mateo Ano Nuevo Point Comment
  UC88305  Gnaphalium palustre C. F. Baker 1902-10-20 1860 San Mateo Searsville Pacific Coast, Searsville Comment
  POM223282  Gnaphalium ramosissimum L. S. Rose 1935-8-13 35568 San Mateo Salada. 30 Comment
  UCR121580  Gnaphalium stramineum George K. Helmkamp, E. A. Helmkamp 1999-6-28 5015 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  SEINET11835908  Grindelia E. A. Purer 1933-1 5369 San Mateo 2 mi S of Pigeon Point Comment
  JROH812  Grindelia camporum H. J. Dengler 1972-10-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; above kingfisher nesting site Comment
  CAS-BOT-BC304503  Grindelia hirsutula Le Roy Abrams 1901-9-1 2221 San Mateo Cooleys Landing Comment
  CAS-BOT-BC304510  Grindelia hirsutula David D. Keck 1931-9-27 1273 San Mateo Dumbarton Bridge Comment
  CAS-BOT-BC304513  Grindelia hirsutula John Thomas Howell 1964-12-6 41032 San Mateo Vacant lot near S. P. R. R. station, Millbrae Comment
  CAS-BOT-BC304521  Grindelia hirsutula J. T. Howell No date on label s.n. San Mateo Pigeon Pt. Comment
  CAS-BOT-BC304532  Grindelia hirsutula W. R. Dudley 1897-10-10 s.n. San Mateo At Pilar Point Comment
  CAS-BOT-BC304536  Grindelia hirsutula W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. By road from Pilarcitos to San Andreas Comment
  CAS-BOT-BC304545  Grindelia hirsutula Phillip C. Wheeler 1965-7-8 s.n. San Mateo San Bruno Mountain. Along road on ridge Comment
  RSA128842  Grindelia hirsutula H. L. Mason 1921-7-3 s.n. San Mateo Pescadero-La Honda Road. Comment
  SJSU2215  Grindelia hirsutula W. P. Merry 1959-5-23 69 San Mateo beside Alpine Rd 7 mi W of Hwy 5 (Skyline Blvd.), Santa Cruz Mts Comment
  UC1118556  Grindelia hirsutula N. K. Carlson 1935-6-29 105 San Mateo 1 mi s Pescadero; Santa Cruz Quad. Comment
  SEINET10614592 Image available Grindelia hirsutula Wilhelm N. Suksdorf 1913-6-23 Suksdorf 279 San Mateo Crystal Springs Lake. Comment
  SEINET5709422 Image available Grindelia hirsutula var. hirsutula Delzie Demaree 1933-1 10424 San Mateo Spring Valley road. Comment
  SJSU15766  Grindelia stricta var. angustifolia Toni Corelli 2011-8-31 721 b San Mateo Pescadero State Beach and Marsh Natural Preserve. Along Butano Trail on levy along Butano Creek. 3 Comment
  POM288781  Grindelia stricta var. platyphylla Lyman Benson 1934-7-4 6101 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  SD88348  Grindelia stricta var. platyphylla Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  RSA97498  Grindelia stricta var. platyphylla L. S. Rose 1954-8-29 54114 San Mateo Montara. Comment
  CAS-BOT-BC282868  Hainardia cylindrica A. G. Vestal 1926-5-1 s.n. San Mateo San Pedro Point Comment
  JROH838  Helenium puberulum John Hunter Thomas 1977-6-16 18744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC407000  Helenium puberulum W. R. Dudley 1895-6-14 San Mateo near Searsville; San Francisquito Creek Comment
  UC943014  Helenium puberulum Lewis S. Rose 1949-8-10 49157 San Mateo Skyline Blvd. w Tanforan 121 Comment
  CAS-BOT-BC309530  Helenium puberulum E. M. Zeile 1921-7-30 1132 San Mateo Mussel Rock Comment
  CAS-BOT-BC305341  Helianthella castanea Glenn L. Clifton 1988-5-11 17823 San Mateo San Bruno Mountain, canyon on north-facing slope above Brisbane, adjacent to right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 256 Comment
  CAS-BOT-BC224057  Helianthemum scoparium George Oberlander 1949-6-25 225 San Mateo San Francisco Watershed Reserve Comment
  JROH1168  Helminthotheca echioides John H. Thomas 1970-7-5 15668 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1172  Helminthotheca echioides John Hunter Thomas 1981-10-25 20770 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  CAS-BOT-BC306178  Hemizonia congesta subsp. congesta James I. McMurphy 1909-6-13 s.n. San Mateo Summit, between Colma and San Bruno Comment
  CAS-BOT-BC314914  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-8-26 367 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  UCSB57493  Hemizonia congesta subsp. luzulifolia Abrams, L. 1914-7-15 San Mateo Crystal Springs Comment
  CAS-BOT-BC313454  Hemizonia congesta subsp. luzulifolia J. McMurphy 1909-8-29 s.n. San Mateo Summit between Crystal Springs Lake and Belmont, Santa Cruz Peninsula Comment
  CAS-BOT-BC313455  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1908-8-1 s.n. San Mateo Summit Crystal Springs-Belmont Road Comment
  CAS-BOT-BC314915  Hemizonia congesta subsp. luzulifolia Duncan M. Porter 1960-10-12 726 San Mateo Meadow at the crest of ridge above Webb Ranch (area H), Jasper Ridge Biological Preserve Comment
  CAS-BOT-BC314951  Hemizonia congesta subsp. luzulifolia Alice Eastwood 1919-9-1 s.n. San Mateo San Mateo Comment
  UC1584834  Hemizonia congesta subsp. luzulifolia Jerry Powell 1990-5-11 1580 San Mateo at junction of Hwy 280 and Hwy 92 Comment
  POM360252  Hemizonia corymbosa subsp. corymbosa E. A. Purer 1933-7-27 5339 San Mateo Pigeon Point Comment
  RSA81629  Hemizonia corymbosa subsp. corymbosa James I. McMurphy 1906-11-17 2 San Mateo Near Portola. Comment
  RSA94180  Hemizonia corymbosa subsp. corymbosa D. D. Keck 1932-5-25 1784 San Mateo Hills 2 miles W of Belmont Comment
  POM360311  Hemizonia luzulifolia L. S. Rose 1964-9-5 64070 San Mateo Emerald Lake, W of Redwood City. 244 Comment
  POM360316  Hemizonia luzulifolia E. S. Spalding 1923-8-3 s.n. San Mateo 3 miles W of Redwood City, near Pulgas Tunnel. Comment
  RSA81636  Hemizonia luzulifolia James I. McMurphy 1909-5-25 s.n. San Mateo Summit between San Mateo and Crystal Springs Lakes. Comment
  JROH252  Heracleum maximum John Hunter Thomas 1986-5-1 23989 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing near San Francisquito Creek Comment
  JEPS83137  Hesperevax sparsiflora var. brevifolia Lewis S. Rose 1970-5-3 70036 San Mateo w San Mateo; Black Mountain, Skyline Blvd. 121 Comment
  JROH882  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1961-4-29 9190 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH903  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1992-5-5 25218 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  POM87769  Hesperevax sparsiflora var. sparsiflora L. R. Abrams 1902-5-4 2417 San Mateo Woodside Comment
  JROH4229  Hesperocnide tenella John H. Thomas 1974-5-19 17384 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2929  Hesperolinon micranthum D. E. Breedlove 1971-5-31 19382 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH2935  Hesperolinon micranthum John Hunter Thomas 1983-6-29 22707 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM139231  Hesperolinon micranthum A. D. E. Elmer 1903-05 4422 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC148471  Heteromeles arbutifolia Fred Hemphill 1973-4-15 681 San Mateo San Carlos, chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH3681  Heteromeles arbutifolia John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA451285  Heteromeles arbutifolia L. S. Rose 1942-8-11 42227 San Mateo Skyline Blvd, W of San Bruno. 91 Comment
  JROH907  Heterotheca grandiflora John Hunter Thomas 1991-11-21 25110 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  JROH905  Heterotheca grandiflora Monica Bjorkman 1991-11-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  CAS-BOT-BC310769  Heterotheca sessiliflora subsp. echioides John H. Thomas 1961-8-27 9702 San Mateo San Bruno Mountain in northern part of county 396 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
  UC662649  Heuchera micrantha var. erubescens L. S. Rose 1941-7-2 41289 San Mateo Kings Mountain 600 Comment
  RSA0063146  Heuchera micrantha var. hartwegii Carl B. Wolf 1929-6-8 3747 San Mateo Searsville Lake. Comment
  CAS-BOT-BC424429  Heuchera pilosissima W. R. Dudley 1900-3-17 s.n. San Mateo By down grade from Montara Mts to San Pedro Comment
  UC897793  Hieracium albiflorum Lewis S. Rose 1939-6-16 39279 San Mateo Kings Mountain 670 Comment
  POM207955  Hierochloe occidentalis C. F. Baker 1902-1-15 247 San Mateo West side of King's Mountain Comment
  RSA187345  Hierochloe occidentalis John H. Thomas 1954-4-3 3820 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda. 107 Comment
  CAS-BOT-BC55434  Hirschfeldia incana Ira L. Wiggins 1975-8-5 22174 San Mateo Bed of San Francisquito Creek, ca. 100 m above Pope Street bridge, both sides of Santa Clara--San Mateo line. Comment
  CAS-BOT-BC55436  Hirschfeldia incana Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountains. Base of Quarry 2. Comment
  CAS-BOT-BC55440  Hirschfeldia incana Phillip Wheeler 1965-6-7 s.n. San Mateo San Bruno Mountains. Bottom Owls Canyon. Comment
  RSA134378  Hoita orbicularis L. S. Rose 1959-6-24 59031 San Mateo San Mateo, Black Mtn. Rd. near Skyline Blvd. 122 Comment
  CAS-BOT-BC206381  Hoita strobilina C. F. Leitholt 1893-7-22 s.n. San Mateo Guadalupe Valley Comment
  CAS-BOT-BC289248  Holcus lanatus Josephine D. Randall 1907-7-23 158 San Mateo Near Crystal Springs Lake, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC289250  Holcus lanatus Elizabeth McClintock 1974-11-8 s.n. San Mateo North side of Guadalupe Parkway in the saddle, San Bruno Mountain Comment
  CAS-BOT-BC289253  Holcus lanatus Philip Wheeler 1965-6-8 s.n. San Mateo Crocker Industrial Park, San Bruno Mountain Comment
  JROH5213  Holcus lanatus John Hunter Thomas 1982-6-7 21033 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5217  Holcus lanatus John Hunter Thomas 1989-5-30 24756 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC150051  Holodiscus discolor var. discolor George Oberlander 1949-5-21 183 San Mateo Sawyer Ridge Comment
  CAS-BOT-BC150058  Holodiscus discolor var. discolor John H. Thomas 1961-5-7 9281 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC150060  Holodiscus discolor var. discolor Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Quarry 4 Comment
  CAS-BOT-BC150063  Holodiscus discolor var. discolor Elizabeth McClintock 1965-3-28 s.n. San Mateo In Trillium Gulch Comment
  UCD85414  Hordeum brachyantherum Lewis S. Rose 1963-4-27 63001 San Mateo Skyline Blvd. West of San Mateo. 91 Comment
  JROH5225  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1979-5-22 19575 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10598962  Hordeum californicum LeRoy R. Abrams Abrams 1651 San Mateo Cooley Landing. Comment
  JROH5239  Hordeum marinum subsp. gussoneanum John H. Thomas 1971-5-30 15953 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC289459  Hordeum murinum subsp. leporinum John H. Thomas 1962-4-24 9847 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH5259  Hordeum murinum subsp. leporinum John Hunter Thomas 1987-5-15 24287 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Low flow crossing. Comment
  SD39730  Hordeum murinum subsp. leporinum Edith A. Purer 1933-7-27 5372 San Mateo Sand dunes, two miles south of Pigeon Point Comment
  CAS-BOT-BC271356  Hordeum vulgare William R. Dudley 1895-6-1 s.n. San Mateo Near Palo Alto Comment
  CAS-BOT-BC271357  Hordeum vulgare Mary Helen Kelson 1956-4-27 150 San Mateo One mile from beach at Pescadero Comment
  CAS-BOT-BC536140  Horkelia californica John H. Thomas 1964-6-19 10425 San Mateo 0.9 mile south of Tunitas Creek near Cost Highway 60 Comment
  JEPS44582  Horkelia californica Dr. L. M. Newlon 1921-1 250 San Mateo Above Salata to Mussell Rock (Seashore) Comment
Read comments
1
  RSA523364  Horkelia californica G. H. True 1936-6-14 508 San Mateo Canyon S of Salada Beach. 305 Comment
  CAS-BOT-BC536143  Horkelia californica L. R. Abrams 1926-5-26 11219 San Mateo San Bruno Hills near Daly City Comment
  CAS-BOT-BC144011  Horkelia marinensis James McMurphy 1909-6-13 s.n. San Mateo Hills back of Colma Comment
  CAS-BOT-BC400964  Hypericum anagalloides Carl B. Wolf 1929-5-25 3729 San Mateo Pebble Beach so. of Pescadero Comment
  CAS-BOT-BC400965  Hypericum anagalloides Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo San Bruno Mountains. North facing slope to south of new Guadalupe Parkway just before it meets Radio Road Comment
  CAS-BOT-BC311395  Hypochaeris glabra Fred Hemphill 1973-5-14 820 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH923  Hypochaeris glabra John Hunter Thomas 1989-5-9 24720 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC311394  Hypochaeris glabra George Oberlander 1950-9-21 910 San Mateo San Francisco Watershed Reserve. On Sawyer Ridge Comment
  CHSC364  Hypochaeris radicata J. Turner 1930-5-2 San Mateo Moss Beach. 6 Comment
  JROH927  Hypochaeris radicata John H. Thomas 1973-5-5 16771 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH928  Hypochaeris radicata John H. Thomas 1974-5-3 17237 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA6414  Hypochaeris radicata D. D. Keck 1932-5-6 1462 San Mateo Belmont. Comment
  CAS-BOT-BC311490  Hypochaeris radicata Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. East end of Summit Ridge Comment
  CAS-BOT-BC311493  Hypochaeris radicata Elizabeth McClintock 1965-5-23 s.n. San Mateo San Bruno Mountain. Top ridge east of Nike Station Comment
  RSA14212  Hypochaeris radicata C. B. Wolf 1926-10-19 199 San Mateo East slope of La Honda Grade; Santa Cruz Mts. Comment
  JROH5615  Iris douglasiana John Rawlings 2014-4-11 1218 San Mateo Jasper Ridge Biological Preserve, Stanford University; confluence of Bear and San Francisquito creeks just east of the terminus of Trail 20 growing at edge of the steep bank of San Francisquito Creek. 82 Comment
  RSA3090  Iris douglasiana Carl B. Wolf 1931-8-21 2332 San Mateo 0.5 mi above east base of La Honda Grade; Santa Cruz Mountains 244 Comment
  SEINET4170688  Iris douglasiana Unknown 1950-4-16 San Mateo Summitt Ridge, San Bueno Mts. 244 Comment
  UC143469  Iris douglasiana Alice Eastwood Apr 1898 San Mateo Purissima Comment
  CAS-BOT-BC133651  Iris longipetala Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo Slope above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC133658  Iris longipetala L. R. Abrams 1919-3-20 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC133660  Iris longipetala L. R. A. 1902-4-13 2337 San Mateo Lake San Andreas Comment
  CAS-BOT-BC133663  Iris longipetala Alice Eastwood 1915-3-20 s.n. San Mateo San Bruno hills Comment
  SEINET5883393 Image available Iris longipetala L. S. Rose 1964-1 64020 San Mateo S San Francisco, San Bruno Mtn, alt ca 200 ft Comment
  SD168142  Iris macrosiphon Phil Rundel 1963-6-11 1116 San Mateo La Honda Road. (IPB 12/07) 459 Comment
  RSA185842  Iris missouriensis John H. Thomas 1954-5-28 4240 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  CAS-BOT-BC57727  Isoetes howellii W. R. Dudley 1908-6-26 s.n. San Mateo W. of Seafield Pond, Coal Mine Ridge 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-BC112441  Isolepis cernua Lewis Samuel Rose 1956-7-2 56117 San Mateo Skyline Blvd. hills of San Mateo 182 Comment
  RSA366098  Isolepis cernua L. S. Rose 1948-12-3 48242 San Mateo Ocean Shore Blvd., 6 miles S of San Francisco County line. Comment
  RSA40141  Isolepis cernua L. S. Rose 1948-12-3 48242 San Mateo Ocean Shore Blvd., 6 miles S of San Francisco County line. Comment
  SEINET7589112 Image available Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point. Comment
  UCSC008165  Juncus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC1101045  Juncus bufonius Herbert L. Mason 1949-7-7 14028 San Mateo Mouth of Gazos Creek 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
  HSC23972  Juncus bufonius Mary Katherine Wicksten 1971-6-24 108 San Mateo Huddart Park, by check-in station Comment
  RSA796693  Juncus bufonius Peter Rubtzoff 1977-6-21 9066 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4449  Juncus bufonius var. bufonius John H. Thomas 1974-5-19 17384 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5851  Juncus bufonius var. bufonius John Rawlings 2016-5-19 1759 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 about 115 meters from wooden trail marker near Preserve boundary fence east of Escobar Gate. 104 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
  JROH4465  Juncus bufonius var. occidentalis John H. Thomas 1973-4-14 16561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4466  Juncus bufonius var. occidentalis John H. Thomas 1974-4-4 17086 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15214  Juncus capitatus Toni Corelli 2011-4-28 700 San Mateo Ano Nuevo, Cascade Field, junction of Cascade Creek Trail and Atkinson Bluff Trail 9 Comment
  UC1601735  Juncus lescurii J. Burtt Davy 1893-6-22 758 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  JROH4502  Juncus patens John Hunter Thomas 1981-7-12 20687 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM292635  Juncus patens Lyman Benson 1937-7-15 8451 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains. 244 Comment
  RSA368314  Juncus patens J. Doty 1969-3-26 599 San Mateo San Mateo County: 100 yards E of jct Hwy 35 & 92, near summit of Caost Range, San Francisco Peninsula. Comment
  UC1601807  Juncus phaeocephalus J. Burtt Davy 1893-6-17 751 San Mateo Salt Marsh Belmont Comment
  CAS-BOT-BC210152  Juncus phaeocephalus Peter Rubtzoff 1979-7-26 9297 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CDA32415  Koeleria P. B. Kennedy 1928-5-2 San Mateo Hills east of Daly City 0 Comment
  RSA100995  Koeleria macrantha G. Oberlander 1950-4-23 914 San Mateo Sweeney Ridge, San Francisco Watershed Reserve Comment
  SJSU15768  Koeleria macrantha Toni Corelli 2010-4-16 615 San Mateo Pedro Point Headlands, Pacifica CA. Off of South Ridge Road Trail 180 Comment
  UCD85703  Koeleria macrantha A. A. Beetle 1942-6-11 3594 San Mateo 2 miles north of South San Francisco. Comment
  CAS-BOT-BC273732  Koeleria pyramidata Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC273736  Koeleria pyramidata W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Crystal Springs Lake Comment
  CAS-BOT-BC353465  Lactuca virosa Peter Rubtzoff; Roman Gankin 1975-9-11 8374 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH957  Lagophylla ramosissima John H. Thomas 1958-5-10 7173 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH966  Lagophylla ramosissima John Hunter Thomas 1983-7-20 22900 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR121559  Lapsana communis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4977 A San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CAS-BOT-BC339071  Lasthenia californica John Thomas Howell 1933-5-3 11204 San Mateo San Bruno Hills Comment
  CHSC24835  Lasthenia californica B. A. Rosene 1976-4-18 2 San Mateo Ca. 2.4 km nw of entrance to Calif. State Game Refuge. 182 Comment
  CHSC68146  Lasthenia californica A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills. Comment
  POM55142  Lasthenia californica C. F. Baker 1903-4-6 1890 San Mateo San Bruno Hills. Comment
  POM55213  Lasthenia californica A. D. E. Elmer 1903-04 4507 San Mateo San Bruno Hills Comment
  JROH972  Lasthenia californica subsp. californica John H. Thomas 1957-4-16 6657 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
  UC90024  Lasthenia californica subsp. californica T. S. Brandegee 1890-5-28 San Mateo San Gorgonio Comment
  SEINET11811268  Lasthenia chrysostoma M. T. Doutt 1931-1 414 San Mateo Skyline Blvd, W of Hillbrae Comment
  JEPS67909  Lasthenia glaberrima L. R. Heckard and J. H. Thomas 1972-4-16 2892 San Mateo ca 1.5 s Pulgas Water Temple (sw of Upper Crystal Springs Reservoir, along Old Canada road (private)) 121 Comment
  JEPS24276  Lasthenia glabrata subsp. glabrata J. H. Thomas 1954-4-2 3793 San Mateo 1.5 mi e of center Redwood City Comment
  CAS-BOT-BC360401  Lasthenia glabrata var. glabrata Ned Cahill 1974-4-18 138 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC361417  Lasthenia maritima Sue Roberts 1954-5-1 69 San Mateo Pescadero Beach Comment
  JEPS35423  Lasthenia minor W. L. Jepson 1921-4-3 9112 San Mateo near Colma; Colma Canyon Comment
  RSA51309  Lasthenia minor Peter H. Raven 1950-4-30 1953 San Mateo Montara. 15 Comment
  SD39834  Lathyrus littoralis Edith A. Purer 1932-7-18 4007 San Mateo Half Moon Bay, sand dunes Comment
  RSA158048  Lathyrus littoralis W. R. Russell 1961-6-5 s.n. San Mateo 1 block west of business district, north end of Pacifica (formerly Sharp Park). Comment
  POM277781  Lathyrus polyphyllus Lyman Benson 1930-5-26 2137 San Mateo Stanford University. Lake Searsville. 152 Comment
  UCD106475  Lathyrus vestitus A. A. Heller 1907-4-20 8454 San Mateo San Bruno Hills. Comment
  POM19705  Lathyrus vestitus subsp. vestitus C. F. Baker 1903-4-6 1893 San Mateo San Bruno Hills. Comment
  CDA5011  Lavatera arborea T. C. Fuller 1960-10-5 5199 San Mateo Highway 1 at Pebble Beach State Park, south of Pescadero. 0 Comment
  CAS-BOT-BC323159  Layia chrysanthemoides David D. Keck 1932-4-29 1450 San Mateo Redwood City. Comment
  UC935680  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 mi w of Burlingame on Skyline Boulevard Comment
  CAS-BOT-BC321068  Layia gaillardioides A. D. E. Elmer 1903-6-1 4261 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC321114  Layia gaillardioides David D. Keck 1932-6-1 1798 San Mateo 1.5 mi. NE of La Honda Santa Cruz Mountains 213 Comment
  CAS-BOT-BC321115  Layia gaillardioides David D. Keck 1932-6-1 1798 San Mateo 1.5 mi. NE of La Honda Santa Cruz Mountains 213 Comment
  UC913051  Layia gaillardioides David D. Keck 1932-6-1 1798 San Mateo 1. 5 mi ne of La Honda; Santa Cruz Mountains 213 Comment
  UC990575  Layia gaillardioides James I. McMurphy 1909-5-25 San Mateo above Pulpit Rock; San Mateo Canyon Comment
  CAS-BOT-BC321093  Layia gaillardioides W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula, hills SW of Baden 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-BC327468  Layia hieracioides John H. Thomas 1950-5-14 1871 San Mateo Ben Lomond Sand Hills, along Quail Hollow Road 152 Comment
  CAS-BOT-BC327504  Layia hieracioides J. H. Thomas 1958-6-11 7223 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  CAS-BOT-BC327505  Layia hieracioides J. H. Thomas 1961-5-7 9307 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JEPS27361  Layia hieracioides Rimo Bacigalupi with Jim Roof and L. R. Heckard 1961-4-24 7621 San Mateo lateral ridge below and se of end of paved ridge-top road just e KRON television tower and station (Guadalupe Valley side of mt.); San Bruno Mountain 304 Comment
  POM298251  Layia hieracioides D. D. Keck 1932-6-1 1796 San Mateo Above Searsville Lake, on la Honda Road, east slope of Santa Cruz Mts. Comment
  RSA124759  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo Jasper Ridge. About 5 miles SW of Palo Alto. 152 Comment
  RSA128529  Layia hieracioides L. R. Abrams 1907-8-26 s.n. San Mateo King Mt.; Plants of the Santa Cruz Mountain Peninsula. Comment
  UC828938  Layia hieracioides John Thomas Howell 1938-5-1 13769 San Mateo Colma Canyon Comment
  CAS-BOT-BC327453  Layia hieracioides David D. Keck 1933-5-11 2299 San Mateo Near west base of Montara MOuntain Grade (south side of mountain) Comment
  CAS-BOT-BC352223  Layia hieracioides Peter Rubtzoff; Roman Gankin; Elizabeth McClintock; Bill Burley 1979-6-7 9289 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  POM216310  Layia hieracioides D. D. Keck 1933-5-11 2299 San Mateo Near W base of Montara Mountain Grade (S side of mountain.) Comment
  RSA100979  Layia hieracioides G. Oberlander 1949-9-25 368 San Mateo On Sawyer Ridge, San Francisco Watershed Reserve. Comment
  RSA455862  Layia hieracioides Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC382224  Layia platyglossa John Thomas Howell 1926-4-24 1924 San Mateo Daly City 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
  JROH991  Layia platyglossa John H. Thomas 1955-5-6 4085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH994  Layia platyglossa John H. Thomas 1966-4-21 11564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC382225  Layia platyglossa John Thomas Howell 1974-4-11 17130 San Mateo Serpentine area to the SE of Canada Road and Edgewood Road; NW of Woodside 152 Comment
  SEINET10879172  Layia platyglossa John T. Middleton 1937-4-10 Middleton s.n. San Mateo San Mateo Co., Ca. Comment
  RSA128853  Layia platyglossa subsp. campestris W. R. Dudley 1909-4-27 s.n. San Mateo Whipple Road near Blacksmith shop between Woodside and Crystal Springs Lake. Plants of the Santa Cruz Mountain Peninsula. Comment
  POM54371  Layia platyglossa subsp. platyglossa A. D. E. Elmer 1903-04 5022 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC534546  Lemna gibba A. D. E. Elmer 1903-7-1 4765 San Mateo San Pedro Comment
  CAS-BOT-BC534547  Lemna gibba A. D. E. Elmer 1903-7-1 4765 San Mateo San Pedro Comment
  CAS-BOT-BC221529  Lepechinia calycina W. R. Dudley 1893-1-1 s.n. San Mateo Santa Cruz Peninsula. Near Belmont Comment
  CAS-BOT-BC221540  Lepechinia calycina Fred Hemphill 1973-4-15 717 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH2794  Lepechinia calycina John H. Thomas 1975-6-5 17935 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  UC76164  Lepechinia calycina Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  CAS-BOT-BC89135  Lepidium didymum H. L. Mason 1921-5-29 s.n. San Mateo Pebble Beach near Pescadero. Comment
  CDA19903  Lepidium latifolium D. Pendleton 2002-5-28 PDR P 120142 San Mateo San Francisco Bay Area; RR & Cedar St across the tracks from roller rink. 0 Comment
  JROH1549  Lepidium nitidum John Hunter Thomas 1980-4-10 19870 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  RSA65802  Lepidium perfoliatum D. D. Keck 1932-3-24 1400 San Mateo Redwood City, at border of San Francisco Bay. Comment
  JROH5775  Lepidium strictum John Rawlings 2016-3-8 1677 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14 uphill from dam spillway 108 Comment
  POM65863  Leptosiphon androsaceus L. R. Abrams 1901-05 1569 San Mateo Woodside Comment
  JROH5691  Leptosiphon bicolor John Rawlings 2015-4-7 1454 San Mateo Jasper Ridge Biological Preserve, Stanford University; quarry off Trail 12 110 Comment
  CAS-BOT-BC226730  Leptosiphon latisectus W. R. Dudley 1900-4-4 s.n. San Mateo Hills west of San Bruno Station Comment
  UCSB12382  Leptosiphon liniflorus Dearing, Hugh; Dearing, Margaret 1933-5-14 San Mateo Skyline Drive, so. of San Francisco Comment
  UCD118865  Leptosiphon liniflorus Irene Brown 1959-5-15 148 San Mateo 6 miles south of entrance to refuge, San Francisco Game Refuge. 21 Comment
  JROH3191  Leptosiphon parviflorus John Hunter Thomas 1981-4-23 20479 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC1270  Leptosiphon rosaceus H. Pearl 1930-5-1 San Mateo Moss Beach. Comment
  UC133724  Leptosiphon rosaceus Dr. E. B. Copeland 1903-6-6 3300 San Mateo Montara Point Comment
  CAS-BOT-BC324058  Lessingia arachnoidea W. R. Dudley 1909-10-10 s.n. San Mateo East side of Crystal Springs Reservoir Comment
  CAS-BOT-BC324060  Lessingia arachnoidea W. R. Dudley 1902-9-21 s.n. San Mateo East of Crystal Springs Reservoir, near fork to Alnus House, Santa Cruz Peninsula Comment
  CAS-BOT-BC324063  Lessingia arachnoidea John Thomas Howell 1926-10-9 2220 A San Mateo Near Crystal Springs Lake 91 Comment
  JEPS40995  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo w of San Mateo; Crystal Springs Lakes Comment
  UC87932  Lessingia arachnoidea C. F. Baker 1902-9-2 1548 San Mateo Crystal Springs Lake 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
  HSC23932  Lessingia hololeuca Mary Katherine Wicksten 1971-8-20 205 San Mateo Huddart Park below Redwood Shelter. Comment
  JROH1033  Lessingia hololeuca John H. Thomas 1972-8-18 16153 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA51399  Lessingia hololeuca L. S. Rose 1949-8-14 s.n. San Mateo Emerald Lake, W of Redwood City Comment
  JROH1037  Leucanthemum maximum Toni Corelli 2009-7-22 353 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed below Dennis Martin marker 71 Comment
  UCSB7872  Leucanthemum vulgare Myrick, Donald 1966-6-11 San Mateo Along Highway #1 near Pescadero Comment
  CAS-BOT-BC273562  Leymus californicus Dr. Kellogg No date on label s.n. San Mateo Unspecified Comment
  RSA108328  Leymus condensatus Frank W. Gould 1941-5-10 1293 San Mateo 1 mile north of Santa Cruz County line on Highway 1. Comment
  JEPS71199  Leymus triticoides William S. Cooper 1919-7-22 214 San Mateo Ano Nuevo Pt. Comment
  CAS-BOT-BC436528  Ligusticum apiifolium A. A. Heller 1907-4-20 8456 San Mateo San Bruno Hills Comment
  CAS-BOT-BC436532  Ligusticum apiifolium A. D. E. Elmer 1903-6-1 4803 San Mateo San Mateo Comment
  UC306542  Ligusticum apiifolium A. D. E. Elmer June 1903 4966 San Mateo San Mateo Comment
  SEINET6633381  Ligusticum apiifolium A. D. E. Elmer 1903-1 4803 San Mateo San Mateo Comment
  JROH2985  Ligustrum lucidum John Rawlings, Carol Zabel 2007-2-7 0908 San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of caretaker residence 107 Comment
  JROH5831  Ligustrum vulgare Ann Lambrecht, Alice Cummings 2013-6-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at the end of a spur off Trail 12 nearly opposite the intersection with Trail 10. The spur ends in a large patch of Scirpus microcarpus at the edge of Corte Madera Creek. 109 Comment
  LA22069  Lilium pardalinum Ira L. Wiggins; 1929-7-4 3771 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Comment
  CAS-BOT-BC45870  Limnanthes douglasii var. sulphurea William Anderson 1966-4-22 n.s San Mateo Canyon Road Comment
  UCR247566  Limonium binervosum Michael Perlmutter 2011-6-15 s.n. San Mateo Burlingame, Sanchez Marsh Comment
  UCD149008  Limonium perezii M. Perlmutter 2011-6-15 s.n. San Mateo Burlingame, Sanchez Marsh. Comment
  CHSC114258  Limonium ramosissimum Michael Perlmutter 2011-6-15 San Mateo Burlingame, Sanchez Marsh. Comment
  JROH4055  Limosella acaulis John Hunter Thomas 1980-11-12 20169 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4063  Limosella acaulis John Hunter Thomas 1982-11-6 21212 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach, edge of Searsville Lake Comment
  JROH4067  Limosella acaulis Ann Lambrecht, Carol Zabel 2004-6-23 10 San Mateo Jasper Ridge Biological Preserve, Stanford University. At landing below Searsville Lab Comment
  UCSB39984  Limosella acaulis Thomas, John 1982-8-15 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  CAS-BOT-BC238360  Limosella aquatica J. Clausen 1939-7-1 1744 San Mateo Ano Nuevo Point Comment
  UCR66506  Linanthus ambiguus L. S. Rose 1948-5-16 48115 San Mateo San Francisco Bay Region, Emerald Lake, hills west of Redwood City 152 Comment
  UC133890  Linanthus liniflorus C. F. Baker 1902-5-4 760 San Mateo Woodside Comment
  UC202827  Linanthus liniflorus A. D. E. Elmer Jun 1903 4704 San Mateo s end Crystal Springs Lake Comment
  CDA6327  Linaria genistifolia subsp. dalmatica A. Roach 1970-12-22 San Mateo Southern Pacific Railroad tracks, 50 yards south of the east end of 14th Avenue, San Mateo. 0 Comment
  CDA6305  Linaria purpurea T. C. Fuller 1968-10-3 17659 San Mateo Christie s Crescent Nursery, Half Moon Bay. 0 Comment
  CDA6307  Linaria purpurea T. C. Fuller 1968-10-3 17659 San Mateo Christie s Crescent Nursery, Half Moon Bay. 0 Comment
  RSA135809  Linum usitatissimum John H. Thomas 1954-4-3 3824 San Mateo San Gregorio Creek drainage, 1.2 miles inland from San Gregorio. 61 Comment
  CAS-BOT-BC430768  Lithophragma affine H. A. Dutton 1900-4-17 s.n. San Mateo Woodside Comment
  JROH3891  Lithophragma affine John Hunter Thomas 1983-4-5 21318 San Mateo Jasper Ridge Biological Preserve, Stanford University; below rattlesnake rock Comment
  JROH1566  Lobularia maritima John Hunter Thomas 1983-2-21 21284 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC173830  Lolium multiflorum Peter Rubtzoff 1977-6-21 9058 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  CAS-BOT-BC283233  Lolium multiflorum Ned Cahill 1974-4-29 176 San Mateo Near the intersection of Canada and Edgewood Rds, about 3 miles W from Redwood City Comment
  UCD66190  Lolium multiflorum J. M Tucker; W. A. Harvey 1948-6-28 1700 San Mateo Ca. 3 miles north of Pescadero. Comment
  RSA785895  Lolium perenne subsp. multiflorum Peter Rubtzoff 1977-6-21 9058 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction northwest of Fog Forest. Comment
  UC75212  Lomatium caruifolium var. caruifolium unknown 1902-4-8 2751 San Mateo San Andreas Lake Comment
  JROH264  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1973-4-20 16582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH277  Lomatium macrocarpum John H. Thomas 1974-4-13 17149 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC240584  Lonicera hispidula Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC240585  Lonicera hispidula A. D. E. Elmer 1903-7-1 4596 San Mateo Lake San Andreas Comment
  JROH1655  Lonicera hispidula John H. Thomas 1975-6-5 17934 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  JROH1656  Lonicera hispidula John Hunter Thomas 1978-7-2 19247 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1663  Lonicera hispidula John Hunter Thomas 1987-5-26 24315 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12266796  Lonicera hispidula J. I. Murphy 1906-1 37 San Mateo Kings Mt. Santa Cruz Mts., Santa Cruz Peninsula Comment
  RSA164830  Lonicera hispidula var. vacillans Wesley O. Griesel 1963-6-20 811 San Mateo Road between Palo Alto to State Hwy 5. 457 Comment
  UCR51650  Lonicera involucrata R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  CAS-BOT-BC243960  Lonicera involucrata var. ledebourii Alice Eastwood 1914-3-12 3756 San Mateo San Bruno Hills Comment
  CAS-BOT-BC243963  Lonicera involucrata var. ledebourii D. E. Breedlove 1974-5-13 36219 San Mateo San Pedro Valley Park, Pacific 152 Comment
  SBBG112484  Lonicera involucrata var. ledebourii C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 2.3 mi E of Hwy 1 38 Comment
  UC139415  Lonicera involucrata var. ledebourii C. F. Baker 1903-4-8 1918 San Mateo San Andreas Lake Comment
  UC1321328  Lotus benthamii R. F. Hoover 1964-9-10 9290 San Mateo between Pedro Point and Montara; Devils Slide Comment
  SEINET957266  Lotus corniculatus Lewis S. Rose 1955-1 55107 San Mateo Pescadero 5 Comment
  JROH2046  Lotus corniculatus John Hunter Thomas 1982-5-18 20937 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing oval Comment
  HSC2126  Lotus formosissimus J. Wendell Howe 1930-5-27 San Mateo Pigeon Point Rd., 3 mi. S of Pescadero Comment
  POM16747  Lotus scoparius var. scoparius A. D. E. Elmer 1903-06 4447 San Mateo San Mateo Comment
  POM276599  Lotus stipularis Lyman Benson 1931-5-10 2801 San Mateo Above Woodside; Kings Mountain. 457 Comment
  RSA87745  Lotus stipularis L. R. Abrams 1902-4-20 2460 San Mateo Kings Mountain. Comment
Read comments
May 21 2014
  SEINET12151371  Lotus subpinnatus Unknown 1932-1 9102 San Mateo Betw. Sky Line Drive and Half Moon Bay Comment
  HSC98283  Lotus unifoliolatus var. unifoliolatus L. S. Rose 1964-9-5 64071 San Mateo Emerald Lake W of Redwood City 244 Comment
  POM87746  Lotus wrangelianus L. R. Abrams 1902-5-11 2438 San Mateo Crystal Springs Lake. Comment
  RSA120410  Lotus wrangelianus Ynez Henderson 1950-4-8 s.n. San Mateo San Francisquito Creek. 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
  SEINET5766884 Image available Lupinus affinis Dunn 1946-1 2601 San Mateo top of Ganyon Rd., 0.7 mi E of jct with Skyline Blvd., jct is 20.8 mi from bridge on N side of Boulder Creek; San Francisco Peninsula Comment
  RSA6288  Lupinus affinis D. D. Keck 1932-5-11 1769 San Mateo Two miles north of San Gregorio. 15 Comment
  RSA0065265  Lupinus albifrons Daisie Huang 2006-8-6 06080604 San Mateo Roadside next to Crystal Springs Reservoir. 123 Comment
  CAS-BOT-BC195787  Lupinus albifrons var. albifrons Charles Piper Smith 1946-3-26 46117 San Mateo South Crystal Springs Lake, Woodside Road Comment
  CAS-BOT-BC195819  Lupinus albifrons var. albifrons A. D. E. Elmer 1903-5-1 4643 San Mateo Belmont Comment
  CAS-BOT-BC195791  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48460 San Mateo Highway 5 - junction San Bruno Road 3, 0.8 miles south Comment
  CAS-BOT-BC195809  Lupinus albifrons var. albifrons W. R. Dudley 1894-4-21 s.n. San Mateo Ravine of San Mateo Creek 3 miles above town Comment
  CAS-BOT-BC196110  Lupinus albifrons var. collinus Walter Knight; Irja Knight 1964-3-15 580 San Mateo Colma Canyon Comment
  CAS-BOT-BC196113  Lupinus albifrons var. collinus John H. Thomas 1955-4-6 4833 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  CAS-BOT-BC196121  Lupinus albifrons var. collinus Charles Piper Smith 1908-5-31 1437 San Mateo S. San Francisco Comment
  RSA134041  Lupinus albifrons var. collinus Roxana S. Ferris 1921-4-7 2131 San Mateo San Bruno mountain near San Francisco 213 Comment
  CAS-BOT-BC8523  Lupinus apricus C. P. Smith 1908-5-2 1427 San Mateo Stanford University. Stockfarm bridge. Comment
  CAS-BOT-BC196433  Lupinus arboreus John Thomas Howell 1933-4-9 10973 San Mateo 2 miles n. of Pigeon Pt. Comment
  SEINET10488471  Lupinus arboreus Marcus E. Jones 1881-6-30 Jones 2322 San Mateo Comment
  SEINET12154361  Lupinus arboreus E. A. Purer 1933-1 5371 San Mateo 2miS of Pigeon Point Comment
  JROH2114  Lupinus bicolor John H. Thomas 1974-4-4 17076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB16952  Lupinus bicolor Schulte, John 1963-4-28 San Mateo Jasper Ridge; 3 mi. SW of Stanford Campus; front of Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  SEINET10484976  Lupinus bicolor var. umbellatus David B. Dunn, Howard Brown 1946-5-15 Dunn 2597 San Mateo In meadow land in the bottom of a ravine about 50 ft. Deep with a small lake at One end. 1 Block n os sloat blvd. At vale ave. Growing with #2596 as one Colony but with flower size easily marking off #2596. Comment
  RSA159408  Lupinus densiflorus var. densiflorus John H. Thomas 1961-5-14 9377 San Mateo Just north of dam on San Mateo Creek. 122 Comment
  SEINET10485250  Lupinus densiflorus var. palustris Charles Piper Smith 1947-4-25 Smith 47178 San Mateo Belmont, skyline, w of vanderlaan summit. Comment
  UC703121  Lupinus formosus Alice Eastwood, John Thomas Howell 1941-7-4 9688 San Mateo Crystal Spring Lakes Comment
  RSA0036527  Lupinus formosus Daisie Huang 2006-8-6 06080603 San Mateo Inside San Francisco Water Authority land. 288 Comment
  SEINET12154552  Lupinus formosus E. A. Purer 1933-1 5426 San Mateo nr Belmont Comment
  SEINET5628414 Image available Lupinus latifolius A. A. Heller 1907-5-23 8562 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  UCD108114  Lupinus latifolius A. A. Heller 1907-5-23 8562 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  JROH2120  Lupinus latifolius var. latifolius John H. Thomas 1964-4-19 10331 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Searsville end of ridge Comment
  JROH2122  Lupinus latifolius var. latifolius John H. Thomas 1977-4-29 18575 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC75237  Lupinus latifolius var. latifolius C. F. Baker Apr 1903 1929 San Mateo Crystal Springs Lake Comment
  UC75238  Lupinus latifolius var. latifolius C. F. Baker 470 San Mateo Crystal Springs Lake; ; Crystal Springs Lake, San Mateo Co. Comment
  UC865131  Lupinus microcarpus var. densiflorus Lewis S. Rose 1939-5-13 39112 San Mateo w Burlingame 60 Comment
  UC127041  Lupinus microcarpus var. microcarpus J. Burtt Davy Jun 21 1893-Jun 23 1893 1151 San Mateo Pilarcitos Lake and Canyon Comment
  UC1129643  Lupinus nanus H. S. Yates 1935-5-8 5200 San Mateo 2 mi n Langley Hill; Santa Cruz Quad., n of Langley Hill Comment
  UC138034  Lupinus nanus C. F. Baker 1902-4-12 507 San Mateo San Gregorio Comment
  UC201931  Lupinus nanus Inez Ray Smith San Mateo Crystal Spring Lakes Comment
  RSA134064  Lupinus nanus subsp. nanus James I. McMurphy 1911-5-11 s.n. San Mateo Stanford Park, Stanford University. Comment
  CAS-BOT-BC157981  Lupinus polycarpus Peter Rubtzoff 1979-7-26 9296 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In upper par to fEast Fork Colma Creek canyon area Comment
  RSA414432  Lupinus tidestromii E. A. Purer 1932-7-18 4009 San Mateo Half Moon Bay Comment
  SJSU16062  Lupinus variicolor Toni Corelli 2010-4-9 515 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica Comment
  RSA176707  Lupinus variicolor John H. Thomas 1964-6-28 10437 San Mateo Along highway 1 near Pedro Point. Comment
  CAS-BOT-BC441268  Luzula macrantha Ira L. Wiggins 1925-4-1 1684 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  CAS-BOT-BC210034  Luzula subsessilis Peter Rubtzoff 1978-4-2 9151 San Mateo San Bruno Mtns. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, on E rim of East Fork Colma Creek Canyon Comment
  JROH3366  Lysimachia arvensis John H. Thomas 1975-4-19 17791 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1190031  Lythrum hyssopifolia J. H. Thomas 1954-5-28 4242 San Mateo just n of South San Francisco (San Bruno Mountain); San Bruno Mountain 30 Comment
  UC138274  Lythrum hyssopifolia Katharine Brandegee 1905-6-1 San Mateo Colma Comment
  UCR122578  Lythrum hyssopifolia George K. Helmkamp, E. A. Helmkamp 2001-6-2 6794 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  RSA0011330  Lythrum hyssopifolia I. L. Wiggins 1949-7-2 12195 San Mateo Pescadero Beach. Comment
  JROH2955  Lythrum tribracteatum John Hunter Thomas 1981-7-12 20708 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  RSA133887  Madia capitata John H. Thomas 1959-8-16 8064 San Mateo About two miles southwest of Pescadero. 61 Comment
  UC204186  Madia elegans A. D. E. Elmer May 1903 4662 San Mateo Alpine School House Comment
  RSA407385  Madia elegans subsp. elegans Lyman Benson 1937-7-25 8470 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  JROH1053  Madia exigua John Hunter Thomas 1981-5-19 20609 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1057  Madia exigua John Hunter Thomas 1982-7-3 21066 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1065  Madia exigua John Hunter Thomas 1992-5-25 25349 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC343327  Madia gracilis L. R. Abrams 1920-6-1 7502 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  CAS-BOT-BC343338  Madia gracilis David D. Keck 1932-6-1 1787 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mtns. 305 Comment
  JROH1066  Madia gracilis John H. Thomas 1958-5-10 7142 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1073  Madia gracilis John H. Thomas 1972-5-5 16080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1077  Madia gracilis John Hunter Thomas 1980-5-8 19946 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1083  Madia gracilis John Hunter Thomas 1983-7-7 22820 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1087  Madia gracilis John Hunter Thomas 1986-5-1 23997 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176827  Madia gracilis John H. Thomas 1961-5-5 9222 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto; above Searsville Lake Comment
  SBBG33375  Madia gracilis A. D. E. Elmer -Apr-1901 San Mateo Stanford University Comment
  UC917256  Madia gracilis W. A. Harvey and J. M. Tucker 1948-6-29 1703 San Mateo beside road to, just w of junction with Highway 5 Portola State Park; Skyline Boulevard Comment
  HSC24008  Madia sativa Mary Katherine Wicksten 1971-6-15 21 San Mateo Huddart Park near horse ring Comment
  JROH1098  Madia sativa John H. Thomas 1963-6-23 10163 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  JROH1111  Madia sativa John Hunter Thomas 1983-7-7 22814 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  CAS-BOT-BC345121  Madia sativa James I. McMurphy 1906-9-24 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC345128  Madia sativa Lewis S. Rose 1966-8-6 66078 San Mateo San Bruno Mountain. Head of Colma Canyon 213 Comment
  CAS-BOT-BC345137  Madia sativa W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Road Comment
  CAS-BOT-BC510724  Maianthemum dilatatum John H. Thomas 1963-9-11 10266 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC510725  Maianthemum dilatatum John H. Thomas 1961-5-7 9288 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CHSC27854  Maianthemum racemosum Susan Perkins 1978-3-24 13 San Mateo Stage Road, 4 mi s of San Gregorio, 2.5 mi n of Pescadero, ca. 8 mi sw of La Honda. 60 Comment
  JROH4698  Maianthemum racemosum John Hunter Thomas 1985-4-22 23544 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB33561  Maianthemum racemosum Brownell, Kathleen 1979-3-27 San Mateo Gazoos Road; 0.6 miles from Highway 1; Near Butano State Park; Foothills of Santa Cruz Mountains 76 Comment
  JROH4713  Maianthemum stellatum John Hunter Thomas 1981-4-5 20260 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4717  Maianthemum stellatum John Hunter Thomas 1988-4-7 24383 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC514171  Maianthemum stellatum Elizabeth McClintock 1965-3-28 s. n. San Mateo In Trillium Gulch, San Bruno Mountain Comment
  HSC23889  Maianthemum stellatum Mary Katherine Wicksten 1971-7-2 146 San Mateo Huddart Park at Miwok area Comment
  SEINET12044094  Maianthemum stellatum W. R. Dudley 1902-1 s.n. San Mateo by Alpine Road on Corte de Madera Creek, Santa Cruz Peninsula Comment
  RSA176727  Malacothamnus arcuatus John H. Thomas 1962-6-6 9906 San Mateo Jasper Ridge Biological Expermental Area, about 5 miles SW of Palo Alto; just above Searsville Lake. Comment
Read comments
Nov 5 2009
  JROH2963  Malacothamnus fasciculatus John Hunter Thomas 1977-6-7 18732 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC204103  Malacothamnus hallii Carl B. Wolf 1929-6-8 3746 San Mateo 2.5 mi. w. of Los Altos on the road to La Honda Comment
  JROH2967  Malva nicaeensis John Hunter Thomas 1977-6-16 18803 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR121494  Malva nicaeensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4959 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
  UCR122979  Malva nicaeensis George K. Helmkamp, E. A. Helmkamp 2001-6-2 6789 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  SEINET5560600  Malva parviflora H. S. Gentry 1931-1 87 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UCD116691  Malva pseudolavatera John Thomas Howell 1968-5-26 44502 San Mateo Burlingame. Comment
  UC129177  Marah oregana Miss Harriet A. Walker 1909-5-8 1681 San Mateo Milbrae Comment
  RSA441244  Marah oregana K. M. Stocking 1947-5-15 40 San Mateo E of Pescadero 1.5 miles. 46 Comment
  CAS-BOT-BC422674  Meconella californica C. F. Baker 1902-4-6 457 San Mateo Crystal Springs Lake Comment
  UC118523  Meconella californica C. F. B. 1902-4-6 457 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC422675  Meconella californica W. R. Dudley 1894-4-4 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  SJSU4256  Medicago lupulina E. J. Dalton 1962-10-7 39 San Mateo San Gregorio Cr 2 mi SW of La Honda Comment
  SBBG44985  Melica californica L. R. Abrams 1902-5-4 2407 San Mateo Woodside 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
  CAS-BOT-BC264241  Melica torreyana Robert Robertson 1954-4-23 97 San Mateo Jaspers Ridge near Searsville Lake 170 Comment
  RSA159421  Melica torreyana John H. Thomas 1961-5-14 9374 A San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  JEPS121449  Melilotus indicus Adam C. Schneider with C. Matt Guilliams 2013-3-9 51 San Mateo Crystal Springs Reservoir Comment
  JROH2809  Mentha pulegium John H. Thomas 1974-10-26 17627 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC166665  Mentha spicata Peter Rubtzoff 1978-9-16 9268 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  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
  RSA34832  Mercurialis annua I. L. Wiggins 1945-9-22 11194 San Mateo Cultivated fields in Pedro Valley, inland from Pedro Point. Comment
  UCD142325  Mercurialis annua T. C. Fuller 1958-10-16 1444 San Mateo Pedro Valley, E of Sanchez Adobe House, S of Linda Mar Blvd. Comment
  CAS-BOT-BC428904  Micranthes californica Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. At Devil's Arroyo. Comment
  CAS-BOT-BC428905  Micranthes californica Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. 1/4 mi. e. of Brisbane power lines Comment
  CAS-BOT-BC348570  Micropus californicus var. californicus John H. Thomas 1971-5-2 15843 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC348719  Microseris bigelovii Kenton L. Chambers 1956-6-20 1048 San Mateo Pebble Beach near Pescadero Point Comment
  UC1594161  Microseris bigelovii Jerry Powell 1991-6-1 1603 San Mateo Edgewood County Park Comment
  UC218911  Microseris bigelovii A. Eastwood San Mateo San Bruno Range 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-BC349026  Microseris douglasii subsp. douglasii Ned Cahill 1974-5-13 273 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City 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
  CAS-BOT-BC349038  Microseris douglasii subsp. douglasii Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  POM203100  Microseris douglasii subsp. tenella L. S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  CAS-BOT-BC7487  Microseris leucocarpha Charles Fuller Baker 1902-5-4 808 San Mateo Woodside Comment
  UC2044060  Microseris paludosa Neal Kramer 2005-5-14 CR 440 San Mateo POST Cloverdale Ranch. North end of the Mesa approx. 0.4 mi east of Lake Lucerne. Comment
  JROH3218  Microsteris gracilis John H. Thomas 1968-3-17 14180 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23941  Mimulus aurantiacus var. aurantiacus Mary Katherine Wicksten 1971-6-15 7 San Mateo Huddart Park, above Zwierlein Area Comment
  JROH4075  Mimulus aurantiacus var. aurantiacus John Hunter Thomas 1978-4-20 19095 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM222786  Mimulus aurantiacus var. aurantiacus S. S. Berry 1909-4-23 s.n. San Mateo Road near Los Francos Creek 61 Comment
  UCD122291  Mimulus aurantiacus var. aurantiacus June McCaskill 1954-5-8 298 San Mateo Highway 5, ca. 2 miles northeast of junction with Halfmoon Bay Road. 883 Comment
  UC103734  Mimulus grandis C. F. Baker 1902-5-4 759 San Mateo Woodside Comment
  JROH4085  Mimulus guttatus Herbert Dengler 1961-4-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at highest point of J.R. Preserve Comment
  JROH4086  Mimulus guttatus Duncan M. Porter 1961-4-8 750 San Mateo Jasper Ridge Biological Preserve, Stanford University; below large meadow on crest of ridge Comment
  RSA60036  Mimulus guttatus G. R. Campbell 1950-6-7 15485 San Mateo 2 miles north of junction of San Mateo road and Hwy 5, hills west of San Jose. 457 Comment
  SEINET12269870  Mimulus guttatus var. grandis Unknown 1932-1 9123 San Mateo Half Moon Bay 0 Comment
  UCD122715  Mimulus microphyllus R. S. Woglum 1935-5-25 996 San Mateo King City-Coalinga, along State Highway 198. Comment
  JROH1701  Minuartia douglasii John H. Thomas 1971-4-10 15752 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1111631  Minuartia douglasii Lewis S. Rose 1956-5-7 56067 San Mateo Skyline Blvd. w San Mateo 182 Comment
  NY429333  Monardella franciscana A. D. E. Elmer 07 1903 4766 San Mateo San Pedro Comment
  CAS-BOT-BC214082  Monardella villosa Cherie Wetzel 1969-6-20 887 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC214086  Monardella villosa D. E. Breedlove 1974-5-13 36235 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC220660  Monardella villosa Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  UC1314253  Monardella villosa subsp. franciscana C. W. O'Brien 1966-8-14 C- 66 -48 San Mateo Lake Pilarcitos 213 Comment
  SEINET10582378  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 181 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. 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
  SEINET10862297  Monardella villosa subsp. franciscana A. Graff 1993-6-14 Graff 3 San Mateo 0.37 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
  RSA0022802  Monardella villosa subsp. subserrata E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel. Comment
  POM192787  Montia parvifolia W. R. Dudley 1895-6-6 s.n. San Mateo Pescadero Creek Comment
  UC311167  Montia parvifolia A. D. E. Elmer May, 1903 4577 San Mateo Iverson's Place Comment
  CAS-BOT-BC508582  Muilla maritima George Oberlander 1950-4-16 686 San Mateo Below San Andreas Dam Comment
  CAS-BOT-BC508586  Muilla maritima Le Roy Abrams 1902-4-13 2330 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
  UCR122630  Myosotis latifolia George K. Helmkamp, E. A. Helmkamp 2001-6-2 6770 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-BC166664  Myosotis latifolia Peter Rubtzoff; Elizabeth McClintock; Barbara Deutsch 1978-6-4 9203 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA120743  Myosotis latifolia S. S. Tillett, I. Sternback 1956-6-24 542 San Mateo Behind (n.) Portola Camp Store, just outside Portola State Park. 396 Comment
  RSA128901  Myosotis latifolia Roxana S. Ferris 1920-4-26 1960 San Mateo Pescadero Creek at beginning of the canyon. 244 Comment
  CAS-BOT-BC101774  Myrica californica R. Bacigalupi 1922-3-1 s.n. San Mateo Arroyo de los Frijoles Comment
  JROH2704  Myriophyllum aquaticum John Hunter Thomas 1992-5-14 25223 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  UC1101507  Myriophyllum sibiricum Malcolm A. Nobs and S. Galen Smith 1949-8-25 1553 San Mateo Marshes at Sharp Point. Comment
Read comments
Aug 8 2011
  UCD87837  Nassella lepida Beecher Crampton 1962-6-11 6506 San Mateo Sharp Park, suburb of Pacifica, Mori's Point Road west of State Hwy. 1. Comment
  CAS-BOT-BC260239  Nassella pulchra H. A. Borthwick 1920-6-1 186 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  RSA95822  Navarretia heterodoxa L. S. Rose 1953-6-29 53044 San Mateo Emerald Lake, hills w. of Redwood City 91 Comment
  SEINET8729365 Image available Navarretia heterodoxa L. S. Rose 1941-1 41269 San Mateo Hills west of Redwood City, Emerald Lake 120 Comment
  JROH3209  Navarretia squarrosa John H. Thomas 1973-6-10 16815 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
  UCSC005138  Nemophila Randall Morgan 1994-3-12 2154 San Mateo Coal Mine Ridge Comment
  JROH2737  Nemophila menziesii var. menziesii D. D. Davis 1903-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  POM65288  Nemophila menziesii var. menziesii C. F. Baker 1903-4-6 1895 San Mateo San Bruno hills, San Francisco. Comment
  CAS-BOT-BC219490  Nemophila parviflora John Thomas Howell 1940-5-23 15517 San Mateo Stone Dam near Lake Pilarcitos 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
  UCSC007766  Nuttallanthus texanus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SJSU5388  Nymphaea odorata R. A. Pattison 1970-5-16 San Mateo pond in Los Trancos Woods 6 mi SW of Stanford University Comment
  CAS-BOT-BC140428  Oemleria cerasiformis Margaret A. Barry 1938-5-1 s.n. San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC140432  Oemleria cerasiformis Reed C. Rollins 1941-2-22 2938 San Mateo About 10 miles northwest of Palo Alto Comment
  CAS-BOT-BC140437  Oemleria cerasiformis James R. Shevock 1973-1-1 2325 San Mateo Along Skyline Drive, Calif. highway 35. Near Lower Crystal Springs Reservoir Comment
  CAS-BOT-BC140445  Oemleria cerasiformis A. D. E. Elmer 1903-3-1 4579 San Mateo Woodside Comment
  JROH3705  Oemleria cerasiformis John H. Thomas 1963-4-17 10035 San Mateo Jasper Ridge Biological Preserve, Stanford University. Moist slope along road near Searsville Lake Comment
  JROH3711  Oemleria cerasiformis John Hunter Thomas 1981-2-14 20220 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC140444  Oemleria cerasiformis Mrs. Geo. H. C. Meyer 1915-3-1 s.n. San Mateo Easton Comment
  SEINET12189806  Oenothera elata Unknown 1933-1 10375 San Mateo Boden Station, South san Francisco Comment
  RSA303928  Oenothera elata subsp. hookeri Jim R. Shevock 1970-11-25 549 San Mateo Coastal Strand 8 Comment
  JEPS19482  Orobanche californica subsp. californica Herbert L. Mason 1927-7-28 3983 San Mateo Pigeon Point. Comment
  POM59435  Orobanche californica subsp. californica W. A. Setchell 1909-8-29 173 San Mateo Farallone City, on slopes facing the ocean. Comment
  RSA0087773  Orobanche uniflora subsp. occidentalis C. F. Baker 1903-4-8 1927 San Mateo Crystal Springs Lake. Comment
  POM49738  Orthocarpus densiflorus L. R. Abrams 1902-5-11 2455 San Mateo Crystal Lake. Comment
  POM15668  Orthocarpus lithospermoides A. D. E. Elmer 1903-06 4420 San Mateo Crystal Springs Lake. Comment
  RSA402039A  Orthocarpus lithospermoides Francis W. Pennell, D. D. Keck 1940-5-15 25413 San Mateo Emerald Lake, above Redwood City. 46 Comment
  SEINET12288880  Orthocarpus lithospermoides Unknown 1932-1 9105 San Mateo above Spring Valley Lakes Comment
  POM286414  Orthocarpus purpurascens Lyman D. Benson 1930-5-1 2051 San Mateo Stanford Univ.; San Lorenzo mt. range. 122 Comment
  SEINET12324059  Orthocarpus pusillus E. McClintock, Knight, W.; Knight, I. 1982-1 4648 San Mateo San Bruno Mountain Comment
  CHSC56513  Osmorhiza chilensis Steven Triano 1988-5-24 170 San Mateo Along se side of Old La Honda Road ca 0.5 air miles e of SkyLonda. 405 Comment
  SEINET12119094  Osmorhiza chilensis Unknown 1932-1 9173 San Mateo Los Francos Woods Comment
  UCR2998  Oxalis incarnata Wm. Horn Jr. 1963-4-7 630407- 01 San Mateo San Francisco Bay, Hillsborough, 2240 Redington Road 30 Comment
  JROH5646  Oxalis micrantha John Rawlings 2014-4-22 1238 San Mateo Jasper Ridge Biological Preserve, Stanford University; at verge of Trail 11 in chaparral 143 Comment
  RSA130344  Oxalis oregana W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula: Redwoods beyond Kings, Santa Cruz Range Comment
  SEINET6645806  Oxalis oregana R. L. Oliver 1976-4-18 s.n. San Mateo La Honda along highway 84 Comment
  UCD111005  Oxalis pilosa J. D. Skoss 1948-8-22 129 San Mateo San Vicente Canyon near Montara. Comment
  UC175966  Packera breweri A. A. Heller 1907-5-23 8565 San Mateo back of San Mateo (on the Half Moon Bay road) Comment
  CAS-BOT-BC318249  Packera breweri W. R. Dudley 1893-5-27 s.n. San Mateo Near Summit Springs, Kings Mt. Comment
  CAS-BOT-BC253791  Panicum hillmanii Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountains. Brisbane Lagoon near railroad tracks Comment
  CAS-BOT-BC253970  Parapholis incurva John H. Thomas 1963-5-20 10138 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 miles NW of Santa Cruz Comment
  RSA177004  Paspalum distichum John H. Thomas 1964-11-15 10521 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  UC157045  Paspalum distichum C. F. Baker 1902-10-20 1836 San Mateo Searsville; about the lake shore Comment
  JROH1400  Pectocarya pusilla J. I. McMurphy 1911-5-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1402  Pectocarya pusilla John H. Thomas 1975-5-2 17858 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS40981  Pedicularis densiflora Lewis S. Rose 1964-3-23 64013 San Mateo w of Redwood City; Emerald Lake 121 Comment
  JROH4103  Pedicularis densiflora John H. Thomas 1959-4-5 7663 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130342  Pedicularis densiflora E. W. Rust 1907-4-27 135 San Mateo King's Mountain. Comment
  RSA130980  Pedicularis densiflora A. M. Patterson 1907-4-27 s.n. San Mateo Kings Mt. Santa Cruz Peninsula. 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
  LA209451  Pedicularis densiflora R. L. A.; 1902-3-16 2278 San Mateo Woodside 60.0 Comment
  RSA40106  Pedicularis densiflora L. S. Rose 1946-3-31 48031 San Mateo Millbrae Highlands. 91 Comment
  SBBG34023  Pedicularis densiflora L. S. Rose 1969-3-27 San Mateo 2 mi NW of Woodside 182 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
  RSA125135  Pedicularis dudleyi E. F. Sprague 1957-5-25 1702 San Mateo Portola State Park, about campground area 305 Comment
Read comments
Mar 2 2010
  CAS-BOT-BC266670  Pedicularis dudleyi W. R. Dudley 1893-5-7 s.n. San Mateo Santa Cruz Peninsula. By road, San Lorenzo River Comment
  CAS-BOT-BC207026  Pelargonium vitifolium Rimo Bacigalupi 1922-3-29 s.n. San Mateo Roadside between Pigeon Pt. and Arroyo de los Frijoles Comment
  CAS-BOT-BC207027  Pelargonium vitifolium Rimo Bacigalupi 1922-3-29 s.n. San Mateo Roadside between Pigeon Pt. and Arroyo de los Frijoles Comment
  CAS-BOT-BC207031  Pelargonium vitifolium John Thomas Howell 1932-12-21 10864 San Mateo Near Pescadero. Comment
  CAS-BOT-BC69252  Pellaea andromedifolia Margaret Barry 1937-5-1 39 San Mateo Coal Mine Ridge Comment
  UC1063604  Pellaea andromedifolia R. C. Wilson 1935-8-2 244 San Mateo head of Harington Creek; Santa Cruz Quadrangle Comment
  JROH103  Pellaea andromedifolia John Hunter Thomas 1982-11-8 21257 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Path below dam Comment
  JROH105  Pellaea mucronata var. mucronata L. R. Abrams 1916-3-27 5588 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Ridge Comment
  UC197089  Pentachaeta alsinoides E. L. Greene 1886-5-9 San Mateo Belmont Comment
  UC88019  Pentachaeta alsinoides E. L. Greene 1886-5-9 San Mateo Belmont Comment
  CAS-BOT-BC330500  Pentachaeta bellidiflora Lewis S. Rose 1946-4-7 46026 San Mateo Skyline Blvd., above San Andreas Lake. 152 Comment
  SJSU14193  Pentachaeta bellidiflora Toni Corelli 1989-4-2 201 San Mateo watershed triangle between Edgewood & Canada Rds 170 Comment
  UC133379  Pentachaeta exilis C. F. Baker 1902-4-4 446 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC77008  Pentagramma triangularis subsp. triangularis Margaret Barry 1937-5-8 84 San Mateo Coal Mine Ridge Comment
  JROH107  Pentagramma triangularis subsp. triangularis John H. Thomas 1956-4-7 5620 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH108  Pentagramma triangularis subsp. triangularis John H. Thomas 1964-11-29 10544 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  POM259787  Perideridia gairdneri subsp. gairdneri I. L. Wiggins, Roxana Ferris 1939-8-2 9295 San Mateo Ano Nuevo Point Comment
  JROH312  Perideridia kelloggii John H. Thomas 1975-7-31 17981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132815  Perideridia kelloggii A. D. E. Elmer 1901-09 3411 San Mateo Crystal Springs Comment
  HSC23968  Perideridia kelloggii Mary Katherine Wicksten 1971-7-22 183 San Mateo Huddart Park, near park entrance Comment
  RSA430457  Perideridia kelloggii Lyman Benson 1974-02 8485 San Mateo La Honda Road 244 Comment
  JROH3248  Persicaria amphibia John H. Thomas 1974-8-3 17496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3244  Persicaria amphibia J. H. Thomas 1960-6-1 8771 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake near dam. Comment
  CAS-BOT-BC418849  Persicaria hydropiperoides Roxana S. Ferris 1920-9-3 2047 San Mateo Santa Cruz Mountain Peninsula. 2nd Mud Lake, Coal Mine Ridge Comment
  CAS-BOT-BC330251  Petasites frigidus var. palmatus John Thomas Howell 1924-2-23 269 San Mateo King Mountain Comment
  RSA116727  Petasites frigidus var. palmatus M. N. paulson 1915-04 s.n. San Mateo La Honda Grade Comment
Read comments
Sep 11 2011
  RSA152207  Phacelia californica John H. Thomas 1961-5-7 9313 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC1047010  Phacelia californica L. R. Heckard 1953-4-15 339 San Mateo high bluffs above ocean; Pedro Point Comment
Read comments
Jun 6 2008
  UC306571  Phacelia californica A. D. E. Elmer April, 1903 4855 San Mateo Crystal Springs Reservoir Comment
  UCD120425  Phacelia distans Lewis S. Rose 1963-5-23 63060 San Mateo Thornton Beach Park. 30 Comment
  RSA128863  Phacelia divaricata W. R. Dudley 1895-6-8 s.n. San Mateo Along the road near the alpine school house, Black Mt. Comment
  SD38340  Phacelia ramosissima Edith A. Purer 1933-5-27 3651 San Mateo Spring Valley Lakes. Comment
  JROH2765  Phacelia rattanii D. E. Breedlove 1971-5-11 19332 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  JROH2766  Phacelia rattanii Woody Woodward 1979-5-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC258934  Phalaris aquatica Cecilia Murray 1963-7-23 s.n. San Mateo Portola Valley Comment
  JROH5354  Phalaris aquatica John H. Thomas 1974-6-27 17446 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just outside of the Goya gate. Comment
  JROH5360  Phalaris aquatica John Hunter Thomas 1981-9-24 20745 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS101195  Phalaris californica Dean W. Taylor 1987-8-20 9313 San Mateo Cascade Ranch State Park, between Whitehorse Creek and Cascade Creek, at crest of north facing hil 188 Comment
  CAS-BOT-BC250642  Phalaris minor A. D. E. Elmer 1903-6-1 4427 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC250647  Phalaris minor Paul Arnaud 1941-5-3 s.n. San Mateo Redwood City, Jefferson Avenue Comment
  JROH5384  Phleum pratense John Rawlings 2009-6-3 1024 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek 82 Comment
  CAS-BOT-BC131761  Phoenix dactylifera Eric Walther 1920-10-1 s.n. San Mateo Near Court House, Redwood City Comment
  CAS-BOT-BC222504  Pholistoma auritum var. auritum Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  SD49975  Phoradendron leucarpum subsp. tomentosum John H. Thomas 1959-8-22 8080 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto 152 Comment
  JROH4290  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH4255  Phyla nodiflora Carol Zabel, Ann Lambrecht, Toni Corelli 2001-5-21 42 San Mateo Jasper Ridge Biological Preserve, Stanford University; bank of Searsville Lake, just below Searsville Lab 105 Comment
  SJSU4276  Phyllospadix scouleri E. B. Woon 1957-5-31 227 San Mateo Pigeon Point Comment
  SEINET9341363  Phyllospadix scouleri Unknown 1966-8-8 San Mateo Half Moon Bay Comment
  CAS-BOT-BC142177  Physocarpus capitatus Le Roy Abrams 1902-5-4 2397 San Mateo Foothills back of Redwood Comment
  UCD23296  Physocarpus capitatus Alan T. Whittemore 1976-5-29 116 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road, between L. San Andreas and Crystal Springs Lake. 100 Comment
  JROH2201  Pickeringia montana var. montana John H. Thomas 1974-5-29 17402 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Riders' shack Comment
  CDA33409  Pinus radiata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .179 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  JROH123  Pinus sylvestris John Rawlings 2005-1-1 1011 San Mateo Jasper Ridge Biological Preserve, Stanford University. West of Rd. G in vicinity of power poles 118 Comment
  CAS-BOT-BC136531  Piperia candida A. D. E. Elmer 1903-8-1 5058 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137319  Piperia elegans Phillip C. Wheeler 1965-5-12 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JROH5966  Piperia transversa Alice Cummings, A. Lambrecht 2017-6-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E through chaparral 135 Comment
  CAS-BOT-BC228142  Plagiobothrys chorisianus Alice Eastwood; John Thomas Howell 1938-6-26 6068 San Mateo Pigeon Point Comment
  UCR70806  Plagiobothrys chorisianus David D. Keck 1932-4-18 1435 San Mateo San Francisco Bay Region, Burlingame; on the shore of San Francisco Bay 2 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
  CAS-BOT-BC228162  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1894-4-21 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near Crystal Springs Reservoir Comment
  CAS-BOT-BC228166  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-17 s.n. San Mateo Near Pebble Beach, Pescadero Comment
  SD39265  Plagiobothrys nothofulvus Edith A. Purer 1933-5-16 3648 San Mateo Alpine Road Comment
  JEPS61087  Plagiobothrys undulatus Jos. B. Davy Jun 21 1893-Jun 23 1893 1136 San Mateo Pilarcitos Lake Comment
  UC24576  Plagiobothrys undulatus J. Burtt Davy Jun 21 1893-Jun 23 1893 1143 San Mateo Pilarcitos Lake and Canyon Pilarcitos Canyon, Pilarcitos Lake Comment
  SJSU2269  Plantago coronopus C. W. Sharsmith 1947-3-23 6746 San Mateo Pescadero Beach near Pescadero Point Comment
  UCSC007767  Plantago coronopus Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  JROH3115  Plantago erecta John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3116  Plantago erecta John Hunter Thomas 1980-5-6 19929 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3123  Plantago erecta John Hunter Thomas 1986-5-1 23994 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA402012B  Plantago hirtella E. S. Spalding 1924-6-28 s.n. San Mateo Moss Beach. 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
  JROH3127  Plantago lanceolata John H. Thomas 1967-5-12 12875 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC164028  Plantago major Peter Rubtzoff 1975-10-11 8424 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, NW of Fog Forest Comment
  JEPS15530  Plantago maritima var. californica G. Thomas Robbins 1956-8-18 3736 San Mateo near mouth of Pomponio 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
  JEPS7150  Plantago maritima var. californica G. Thomas Robbins 1953-8-29 3617 San Mateo just s Olympic Golf Club (and the San Francisco City and County line) Comment
  UCD164004  Plantago subnuda Peter Rubtzoff 1977-11-24 9142 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon near upper rim. Comment
  CAS-BOT-BC92014  Platystemon californicus John H. Thomas 1974-5-7 17317 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school. Comment
  CAS-BOT-BC92016  Platystemon californicus Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. In Devil's Arroyo. Comment
  SEINET3854785 Image available Platystemon californicus Lewis S. Rose 1932-4-10 32139 San Mateo Redwood City. Comment
  CAS-BOT-BC92009  Platystemon californicus W. R. Dudley 1896-4-19 s.n. San Mateo Santa Cruz Peninsula. Above Alpine School. Black Mountain. Comment
  SD1839  Platystemon californicus U. S. Grant 1925-6-5 San Mateo Burlingame Comment
  UC890314  Plectritis brachystemon Alice Eastwood 1912-6-10 326 San Mateo Crystal Springs Comment
  UC131908  Plectritis brachystemon Alice Eastwood 1901-5-19 San Mateo Blenheim Comment
  SD38887  Plectritis ciliosa Cumming, Mc Callum 1933-5-10 3716 San Mateo Near Spring Valley lakes Comment
  CAS-BOT-BC6386  Plectritis congesta subsp. nitida Amos Arthur Heller 1907-5-28 8578 San Mateo Above Crystal Springs Lake Comment
  UC204163  Pleuricospora fimbriolata A. D. E. Elmer Jun 1903 5075 San Mateo on Big Basin trail, Iverson's Place Comment
  CAS-BOT-BC458187  Pleuricospora fimbriolata W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Peninsula: between Pescadero Creek and Butano, back of Iversons Comment
  JROH5767  Pleuropogon californicus var. californicus John Rawlings 2006-5-1 0848 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vernally wet area between Sand Hill Road and main entry road to preserve. 121 Comment
  UCD92189  Poa August L. Hormay 1932-5-29 s.n. San Mateo Bay shore, San Bruno. Comment
  JROH5401  Poa annua John Hunter Thomas 1980-11-27 20181 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5543  Poa annua John Rawlings 2011-4-5 0993 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 S of footbridge. 130 Comment
  UCD90352  Poa annua W. R. Dudley 1894-5-1 s.n. San Mateo Crystal Springs. Comment
  POM87690  Poa howellii Le Roy Abrams 1901-05 1560 San Mateo Searsville -Bear Gulch Comment
  UC1190036  Poa howellii Roxana S. Ferris 1921-3-20 2175 San Mateo road from Alpine Creek to Pescadero Creek; Santa Cruz Mt Peninsula 396 Comment
  CAS-BOT-BC255844  Poa kelloggii Roxana S. Ferris 1920-4-26 1963 San Mateo Near mouth of canyon of Pescadero Creek, Santa Cruz Mountain Peninsula 243 Comment
  CAS-BOT-BC247422  Poa pratensis Phillip C. Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. No. West Radio Road Comment
  JROH5416  Poa pratensis subsp. pratensis John Hunter Thomas 1977-6-16 18801 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC237725  Poa secunda subsp. juncifolia Dr. E. B. Copeland 1903-4-20 1920 San Mateo San Andreas Lake Comment
  CAS-BOT-BC474768  Pogogyne serpylloides Robert E. Preston 2011-6-16 2865 San Mateo Santa Cruz Mountains. Oil Creek watershed, 1.8 mi NW of Waterman Gap 268 Comment
  JROH5623  Pogogyne serpylloides John Rawlings 2014-5-9 1236 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 extension about 115 meters from its Escobar terminus at the wooden trail marker near the boundary fence east of Escobar Gate 146 Comment
  UCD147020  Pogogyne serpylloides Robert E. Preston 2011-6-16 2865 San Mateo Santa Cruz Mtns, Oil Creek watershed, 1.8 mi NW of Waterman Gap. 268 Comment
  SD73212  Pogogyne serpylloides Darley F. Howe 1969-6-10 4642 San Mateo 18.5 miles north of San Mateo-Santa Cruz county line on Highway 1. Comment
  CAS-BOT-BC232874  Polemonium carneum Mrs. E. C. Sutliffe 1921-4-3 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC232896  Polemonium carneum A. D. E. Elmer 1903-7-1 4771 San Mateo Pilarcitos Stone Dam Comment
  JROH3220  Polygala californica John Rawlings 2007-5-30 1013 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vicinity of an abandoned camper shell near a small drainage west of the switchback zone of the Escobar/Webb Ranch horse trail. 100 Comment
  UCR101673  Polygonum George K. Helmkamp, E. A. Helmkamp 1998-5-16 3741 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  CAS-BOT-BC414109  Polygonum aviculare subsp. aviculare George Oberlander 1949-7-24 316 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  JROH3261  Polygonum aviculare subsp. depressum John Hunter Thomas 1977-6-16 18795 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA10408  Polygonum coccineum Carl B. Wolf 1927-6-15 2166 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  UC1101152  Polygonum lapathifolium Malcolm A. Nobs and S. Galen Smith 1949-8-26 1577 San Mateo pond in sand dunes about 1 mi s Half Moon Bay Comment
  CAS-BOT-BC109235  Polygonum paronychia John H. Thomas 1974-5-7 17323 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school. 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
  UC42913  Polypodium J. Burtt Davy 1893-6-22 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC76904  Polypodium californicum Roxana S. Ferris 1921-4-7 2133 San Mateo Santa Cruz Mountain Peninsula - San Bruno Mt. 213 Comment
  CAS-BOT-BC76906  Polypodium californicum W. R. Dudley 1903-3-10 s.n. San Mateo Santa Cruz Mountain Peninsula - near Pedro Pt. and near sea. Comment
  CAS-BOT-BC76856  Polypodium calirhiza Peter H. Raven 1951-2-18 2730 San Mateo San Bruno Mts. near Brisbane. Comment
  CAS-BOT-BC72107  Polypodium scouleri Walter Knight; Irja Knight 1964-4-25 695 San Mateo unspecified Comment
  UC42915  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Comment
  UCD150642  Polypodium scouleri Collector unknown 1974-5-30 28 San Mateo San Bruno Mtn. Radio Rd., before first radio station, and west of Radio Rd. below first radio station. On roadcut. 365 Comment
  CAS-BOT-BC233152  Polypogon interruptus H. A. Borthwick 1920-6-1 203 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  CAS-BOT-BC233156  Polypogon interruptus A. D. E. Elmer 1903-7-1 4694 San Mateo Pilarcitos Stone Dam Comment
  POM199082  Polypogon interruptus A. D. E. Elmer 1903-07 4694 San Mateo Pilarcitos Stone Dam. Comment
  CAS-BOT-BC237342  Polypogon monspeliensis Phillip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Bayshore Comment
  CAS-BOT-BC237346  Polypogon monspeliensis George Oberlander 1949-7-24 312 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  CAS-BOT-BC237347  Polypogon monspeliensis Margaret A. Barry 1937-6-22 176 San Mateo Coal Mine Ridge Comment
  JROH5445  Polypogon monspeliensis John H. Thomas 1974-10-29 17644 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  SD39924  Polypogon monspeliensis Edith A. Purer 1933-7-27 5370 San Mateo Sand dunes, Pigeon Point Comment
  UC1100390  Polypogon monspeliensis Herbert L. Mason and Verne Grant 1946-8-28 13094 San Mateo pond on Highway 5 about 3 mi s Daly City Road Comment
  SEINET10593693  Polypogon monspeliensis Gordon H. True 1937-7-23 True 808 San Mateo North of Salada Beach. 30 Comment
  JROH4821  Polypogon viridis W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By S.F. Creek, just above causeway -- left side looking up from causeway. 81 Comment
  CAS-BOT-BC72152  Polystichum californicum Ynez Henderson 1920-5-1 s.n. San Mateo Las Trancos Creek Comment
  CAS-BOT-BC72229  Polystichum dudleyi Alice Eastwood 1933-5-31 s.n. San Mateo Butano Canyon Comment
  CAS-BOT-BC6609  Polystichum dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Near bridge, Peter's Creek, Santa Cruz Mts. Comment
  POM87723  Polystichum munitum L. R. Abrams 1902-1-12 2256 San Mateo Kings Mountain Comment
  CAS-BOT-BC76644  Polystichum munitum Peter Rubtzoff 1987-11-27 9889 San Mateo San Bruno Mountains - saddle area on north side of Guadelupe Canyon Parkway west of Radio Road junction, Comment
  CAS-BOT-BC76646  Polystichum munitum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain - North Power Line Ridge area. Comment
  POM217107  Polystichum munitum D. D. Keck 1932-2-12 1360 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 305 Comment
  RSA0016814  Polystichum munitum B. J. Hoshizaki 1991-10-4 91 -4 [B] San Mateo Along road between Yerba Buena Nursery and Langly Hill Quarry. Woodside Ranch, 19500 Skyline Blvd., Redwood City. Comment
  RSA693315  Polystichum munitum C. B. Wolf 1928-3-14 1538 San Mateo La Honda grade in the Santa Cruz Mountains 152 Comment
  RSA785881  Polystichum munitum Peter Rubtzoff 1976-10-5 8905 San Mateo eSaddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  UC1174501  Populus trichocarpa W. R. Dudley 1902-9-21 San Mateo on Whipple Road s Crystal Springs Lake (and w of Serpentine); Santa Cruz Peninsula, s of Crystal Springs Lake Comment
  JROH5513  Potamogeton illinoensis John H. Thomas 1964-10-2 10509 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake near bridge Comment
  CAS-BOT-BC141926  Potentilla anserina subsp. pacifica Anne Constant 1955-5-28 196 San Mateo Top of bluff at Pescadero Beach 7 Comment
  CAS-BOT-BC141931  Potentilla anserina subsp. pacifica George Oberlander 1950-5-6 925 San Mateo Below San Andreas Dam - San Francisco Watershed Reserve Comment
  SEINET5568963  Potentilla glandulosa H. S. Gentry 1931-1 83 San Mateo 1 mile SE of Holy Cross Cemetery. Comment
  UC1952815  Potentilla hickmanii Barbara Ertter with Tony Morosco, Deb Hillyard, Richard Vonarb 1995-6-15 14257 San Mateo Martini Creek at south end of Devil's Slide, north-facing grassy hillside Comment
  JROH4673  Prosartes hookeri John H. Thomas 1973-5-5 16761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC516361  Prosartes hookeri Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo, San Bruno Mountain Comment
  SEINET12054260  Prosartes hookeri Unknown 1932-1 8971 San Mateo Los Franco woods Comment
  SEINET8502087 Image available Prosartes smithii L. M. Henry, M. E. Springer 1946-7-21 372 San Mateo La Honda Comment
  UC1124441  Prunella vulgaris var. lanceolata N. K. Carlson 1935-6-28 97 San Mateo 1 mi e Pigeon Pt.; Santa Cruz Quad. Comment
  JROH5842  Prunella vulgaris var. vulgaris A. Lambrecht 2005-7-25 s.n. San Mateo West Menlo Park, California 43 Comment
  CAS-BOT-BC158174  Prunus emarginata Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Buckeye Canyon Comment
  CAS-BOT-BC158175  Prunus emarginata L. R. Abrams 1916-4-22 5575 San Mateo Pilarcitos [Canon] Canyon Comment
  UC1128422  Prunus ilicifolia A. Wright 1928-9-16 San Mateo San Andreas Lake 152 Comment
  UC861053  Prunus ilicifolia Lewis S. Rose 1937-10-31 37725 San Mateo Hill w of Tanforan 91 Comment
  CAS-BOT-BC154505  Prunus ilicifolia Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo Islay Ravine Comment
  CAS-BOT-BC154652  Prunus subcordata Adoph Holme 1929-4-1 s.n. San Mateo Berenda Farm near Redwood City Comment
  CAS-BOT-BC154656  Prunus subcordata Le Roy Abrams 1901-3-1 1168 San Mateo Portola, Los Trancos Creek Comment
  JROH3750  Prunus virginiana var. demissa Toni Corelli 2006-8-9 319 San Mateo Jasper Ridge Biological Preserve, Stanford University; down slope along fire Road E, above deep inlet 109 Comment
  JROH772  Pseudognaphalium beneolens John H. Thomas 1964-11-29 10537 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville dam Comment
  CAS-BOT-BC356871  Pseudognaphalium californicum D. E. Breedlove 1974-5-13 36234 San Mateo Slopes San Pedro Valley Park, Pacifica 152 Comment
  JROH766  Pseudognaphalium californicum John Hunter Thomas 1980-5-8 19940 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC357119  Pseudognaphalium luteoalbum John Thomas Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  CAS-BOT-BC357124  Pseudognaphalium luteoalbum Fred Hemphill 1973-4-22 841 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC357125  Pseudognaphalium luteoalbum Fred Hemphill 1973-5-6 766 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  UC575670  Pseudognaphalium ramosissimum Lewis S. Rose 1935-8-13 35568 San Mateo Salada 30 Comment
  CAS-BOT-BC361570  Pseudognaphalium stramineum L. R. Abrams; I. L. Wiggins 1939-6-3 428 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC361573  Pseudognaphalium stramineum Saichi Kawahara 1968-6-15 437 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  POM223619  Pseudotsuga menziesii S. S. Berry 1909-3-13 s.n. San Mateo King s Mountain. 640 Comment
  JEPS48299  Pseudotsuga menziesii var. menziesii James G. Daly 1935-1-1 220 San Mateo watershed of San Gregorio Creek; Middle Alpine Canyon Comment
  JROH125  Pseudotsuga menziesii var. menziesii John H. Thomas 1970-1-1 15492 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH127  Pseudotsuga menziesii var. menziesii John Hunter Thomas 1981-2-14 20222 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH128  Pseudotsuga menziesii var. menziesii John Hunter Thomas 1983-4-28 21776 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC362023  Psilocarphus tenellus Peter H. Raven 1950-4-16 1804 San Mateo Summit ridge, San Bruno Mts. 243 Comment
  SBBG28043  Psilocarphus tenellus L. S. Rose 1933-5-3 33140 San Mateo Montara Comment
  CAS-BOT-BC362020  Psilocarphus tenellus Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  JROH13  Pteridium aquilinum var. pubescens John Hunter Thomas 1981-4-5 20284 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek from Redwood area to Zoology Cabin ruins Comment
  CAS-BOT-BC421320  Pterostegia drymarioides W. Knight; I. Knight 1965-6-20 s.n. San Mateo San Bruno Mountain. Crystal Cave Canyon Comment
  UCSC007774  Pterostegia drymarioides Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UCSC003366  Puccinellia Randall Morgan 2001-5-20 3735 San Mateo San Gregorio State Beach, San Mateo County Comment
  UC306551  Pyrola picta A. D. E. Elmer 1903-6-1 4297 San Mateo Pescadero Comment
  CAS-BOT-BC105390  Quercus Ned Cahill 1974-4-23 158 San Mateo near the inteersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UCD45065  Quercus agrifolia Lewis S. Rose 1964-3-23 64012 San Mateo Emerald Lake, W. of Redwood City hills. Alt. ca. 400ft. Comment
  SEINET10962205  Quercus agrifolia Lewis S. Rose 1964-1 Rose 64012 San Mateo Emerald Lake, w. of Redwood City hills. 122 Comment
  JROH2459  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-21 15769 San Mateo Jasper Ridge Biological Preserve, Stanford University; at bridge 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
  UC1135557  Quercus durata G. E. Sindel 1935-8-27 338 San Mateo 3.37 mi wnw Woodside; Santa Cruz Quad. 152 Comment
  UCD46005  Quercus durata Herb Dengler 1992-3-5 s.n. San Mateo Jasper Ridge Biological Preserve (of Stanford University) in southeast part of preserve, San Meteo County, California. Comment
  JROH2479  Quercus durata var. durata Arthur Spiegler 1952-5-10 87 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2489  Quercus durata var. durata John H. Thomas 1975-5-2 17851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105393  Quercus kelloggii Josephine D. Randall 1907-3-9 114 San Mateo Santa Cruz Mountain Peninsula, Searsville Road to Woodside Comment
  CAS-BOT-BC105401  Quercus kelloggii Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  JROH2501  Quercus kelloggii John H. Thomas 1959-4-5 7664 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD46744  Quercus kelloggii Edmond Holm 1993-10-20 s.n. San Mateo (Q. parvula Greene var. shrevei (Muller) Nixon. California, San Mateo Co.; Huddart Park, near Miwok Picnic Area. Comment
  CAS-BOT-BC62895  Quercus lobata John Thomas Howell 1926-10-23 2229 San Mateo Sand Hill Road west of Stanford University Comment
  JROH2515  Quercus lobata Josephine D. Randall 1907-3-9 130 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Road to Woodside Comment
  UCD47142  Quercus parvula var. shrevei J. M. Tucker 1946-3-2 1372 San Mateo On hillside ca. 4 miles east of Pescadero, San Mateo County, California. 304 Comment
  CAS-BOT-BC134786  Quercus wislizeni James McMurphy 1909-5-26 s.n. San Mateo La Honda Comment
  CAS-BOT-BC134791  Quercus wislizeni Le Roy Abrams 1902-5-20 2439 San Mateo Kings Mountain Comment
  CAS-BOT-BC134782  Quercus wislizeni W. R. Dudley 1903-5-1 s.n. San Mateo Santa Cruz Peninsula. Alpine Road N of Myer's Place Comment
  JROH2527  Quercus wislizeni var. frutescens W. R. Dudley 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Searsville Reservoir Comment
  JROH5828  Quercus wislizeni var. frutescens John Rawlings 2016-12-29 1954 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 120 yards north of Road F opposite its intersection with Trail 17 to Goya Gate 178 Comment
  SJSU2306  Ranunculus californicus C. W. Sharsmith 1950-4-16 6635 San Mateo near Pescadero Point near Pescadero Comment
  UC1176930  Ranunculus californicus Peter H. Raven 1950-4-30 1955 San Mateo Montara; slopes facing ocean 9 Comment
  POM268416  Ranunculus californicus Lyman Benson 1930-4-6 s.n. San Mateo San Lorenzo Mt: Crystal Springs Lake. 183 Comment
  SEINET5718555 Image available Ranunculus californicus Leslie Fenster 1964-1 10 San Mateo Ca. 2.5 miles up Polhemus Road. Comment
  UC750526  Ranunculus californicus Lewis S. Rose 1947-4-14 47094 San Mateo Skyline Blvd. e Sharps Park 152 Comment
  CAS-BOT-BC378537  Ranunculus californicus var. californicus John H. Thomas 1964-4-30 10357 San Mateo San Bruno Mountain in northern part of county 00000000000000000000000 396 Comment
  CAS-BOT-BC378528  Ranunculus californicus var. californicus Javier Penalosa 1965-2-25 2635 San Mateo San Bruno Mtn. ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC378532  Ranunculus californicus var. californicus Elizabeth McClintock; Virginia Ryder 1964-2-16 s.n. San Mateo San Bruno Mountain, low growing on grassy slope above parking lot at top of mountain Comment
  CAS-BOT-BC378544  Ranunculus californicus var. californicus John H. Thomas 1969-4-30 15032 San Mateo serpentine near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  CAS-BOT-BC378545  Ranunculus californicus var. californicus Elizabeth McClintock; David Schooly; Marcus 1975-4-13 s.n. San Mateo grassy slope above Hillside Blvd., South San Francisco Comment
  RSA15339  Ranunculus californicus var. cuneatus Carl B. Wolf 1927-1-29 s.n. San Mateo Pebble Beach, along bluffs near Beach Comment
  CAS-BOT-BC83425  Ranunculus lobbii George Oberlander 1950-3-18 518 San Mateo San Francisco Watershed Reserve. About Upper Crystal Spring Lake. Comment
  JEPS85713  Ranunculus lobbii L. R. Heckard and J. H. Thomas 1972-4-16 2889 San Mateo ca 1 1/2 mi s Pulgas Water Temple (along old Canada road (private), sw of Upper Crystal Springs Reservoir) 121 Comment
  POM269867  Ranunculus lobbii Roxana S. Ferris 1918-3-31 s.n. San Mateo Mud Lakes, Coal Mine Ridge Comment
  UC854390  Ranunculus orthorhynchus var. bloomeri Lewis S. Rose 1937-4-30 37341 San Mateo Brisbane 6 Comment
  JROH5871  Raphanus sativus Ann Lambrecht 2011-7-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Bear Creek crossing near Preserve boundary fence Comment
  JEPS85565  Rhamnus californica Craig Dremann 1986-8-30 325 San Mateo near San Gregorio (Stage road, 450 ft s of intersection of Seaside School road, on e side of school) Comment
  RSA152061  Rhamnus californica John H. Thomas 1961-5-7 9297 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  CAS-BOT-BC55888  Rhamnus crocea Margaret A. Barry 1938-4-21 238 San Mateo North slope on Coal Mine Ridge Comment
  CAS-BOT-BC55890  Rhamnus crocea H. A. Dutton 1900-2-1 s.n. San Mateo unspecified Comment
  JROH3561  Rhamnus crocea John H. Thomas 1964-4-19 10311 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry open slope below dam Comment
  POM243722  Rhamnus crocea Carl B. Wolf 1928-3-16 1540 San Mateo Jasper ridge, near Searsville Lake Comment
  CAS-BOT-BC56665  Rhododendron occidentale William R. Dudley 1895-6-6 s.n. San Mateo Pescadero Cr. (near Iverson's) Comment
  CAS-BOT-BC56669  Rhododendron occidentale W. R. Dudley 1908-9-21 s.n. San Mateo Pescadero Cr. (Iversons') Comment
  CAS-BOT-BC56671  Rhododendron occidentale W. R. Dudley 1895-6-6 s.n. San Mateo Near Iverson's on Upper Pescadero Creek Comment
  RSA15313  Ribes californicum Carl B. Wolf 1927-4-3 284 San Mateo Los Troncos Creek, 2 miles back of Stanford University. Comment
  RSA176616  Ribes californicum John H. Thomas 1964-4-7 10302 San Mateo Near edge of Searsville Lake. Jasper Ridge Biological experiment area, about 5 miles SW of Palo Alto. Coordinates are approximate. Comment
  RSA44518  Ribes californicum L. S. Rose 1949-3-18 49007 San Mateo Hills west of Belmont. 91 Comment
  CAS-BOT-BC92998  Ribes californicum var. californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont. Comment
  CAS-BOT-BC93002  Ribes californicum var. californicum A. D. E. Elmer 1903-3-1 4683 San Mateo Portola. Comment
  CAS-BOT-BC93011  Ribes californicum var. californicum Adoph Holme 1929-4-1 s.n. San Mateo Berenda Farm near Redwood City. Comment
  JROH2643  Ribes californicum var. californicum D. E. Breedlove 1971-5-31 19359 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  RSA0003752  Ribes deductum C. F. Baker 1902-4-4 441 San Mateo Crystal Springs Lake Comment
  SEINET13942455 Image available Ribes divaricatum Lewis S. Rose 1965-1 65008 San Mateo Searsville Lake, stream banks. Alt ca 400 ft 122 Comment
  CAS-BOT-BC173081  Ribes divaricatum var. pubiflorum A. D. E. Elmer 1903-5-1 4511 San Mateo Searsville Lake Comment
  RSA0025024  Ribes divaricatum var. pubiflorum Roxana S. Ferris 1920-4-24 1956 San Mateo Peters Creek. 2 miles above Bridge. 305 Comment
  CAS-BOT-BC212810  Ribes menziesii Adoph Holme 1929-4-1 s.n. San Mateo Berenda Farm near Redwood City Comment
  CAS-BOT-BC212828  Ribes menziesii Peter H. Raven 1952-4-6 3984 San Mateo 1 mile s. of Sharp Park Comment
  CAS-BOT-BC212832  Ribes menziesii W. R. Dudley 1894-3-1 s.n. San Mateo Between Half Moon Bay and Woodside Comment
  CAS-BOT-BC212837  Ribes menziesii R. Bacigalupi 1922-3-1 s.n. San Mateo Along Pescadero Creek 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-BC212845  Ribes menziesii W. & I. Knight 1963-6-24 s.n. San Mateo Quarry No. 4, San Bruno Mountain Comment
  CAS-BOT-BC144603  Ribes sanguineum var. glutinosum J. H. Thomas 1955-3-18 4693 San Mateo About 6 milesup Tunitas Road from Ocean 335 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-BC144632  Ribes sanguineum var. glutinosum Alice Eastwood 1922-5-27 11326 San Mateo La Honda Comment
  CAS-BOT-BC144636  Ribes sanguineum var. glutinosum W. R. Dudley 1894-3-29 s.n. San Mateo Between Half Moon Bay and Woodside Comment
  CAS-BOT-BC144645  Ribes sanguineum var. glutinosum Josephine D. Randall 1907-3-9 367 San Mateo Kings Mt. 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
  JROH1208  Rigiopappus leptocladus John Hunter Thomas 1991-5-2 25012 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC517992  Rigiopappus leptocladus Lewis S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
  CAS-BOT-BC363090  Rigiopappus leptocladus James McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Lake Comment
  CAS-BOT-BC363093  Rigiopappus leptocladus Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  POM204034  Rigiopappus leptocladus L. S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
  RSA159406  Romanzoffia californica John H. Thomas 1961-5-14 9369 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  UC107585  Romanzoffia californica Kellogg 1869-3-16 San Mateo San Bruno Comment
  SJSU16041  Romulea rosea var. australis John Rawlings, Toni Corelli 2016-4-29 1760 San Mateo Cascade Creek Trail, Ano Nuevo State Park 21 Comment
  JROH1577  Rorippa curvisiliqua Ann Lambrecht, Toni Corelli 2004-9-15 14 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 10 m E of Sand Hill Rd culvert 104 Comment
  CAS-BOT-BC74649  Rorippa curvisiliqua W. R. Dudley 1906-6-10 s.n. San Mateo Santa Cruz Mountain Peninsula. South Cahil Ridge. Comment
  SD37966  Rorippa curvisiliqua var. curvisiliqua Jane T. Turner 1933-5-15 3671 San Mateo Mud Lake Comment
  JROH1583  Rorippa palustris subsp. palustris John Hunter Thomas 1979-9-9 19712 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  JROH3768  Rosa John Hunter Thomas 1979-6-12 19595 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near stream below dam Comment
  CHSC56587  Rosa californica Steven Triano 1988-5-24 173 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
  CAS-BOT-BC146695  Rosa gymnocarpa Delzie Demaree 1933-6-23 10386 San Mateo White House Canyon Comment
  POM222902  Rosa gymnocarpa S. S. Berry 1909-4-3 s.n. San Mateo Bear Creek Canyon Road 335 Comment
  RSA195394  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo Near Crystal Springs Lake. Santa Cruz Mtns. Santa Cruz peninsula. 91 Comment
  CAS-BOT-BC146694  Rosa gymnocarpa W. R. Dudley 1896-4-17 s.n. San Mateo By Hallades Trail near wire cable between Portola and La Honda Road Comment
  SEINET10736898 Image available Rosa gymnocarpa var. gymnocarpa Adolph D. E. Elmer Elmer 4923 San Mateo Pescadero. Comment
  CAS-BOT-BC156646  Rubus bifrons Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC156647  Rubus bifrons Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Off Guadalupe Road Comment
  CAS-BOT-BC152830  Rubus parviflorus W. R. Dudley 1900-3-17 s.n. San Mateo North of Seal Cove - Santa Cruz Peninsula Comment
  CAS-BOT-BC152833  Rubus parviflorus Josephine D. Randall 1907-7-28 345 San Mateo Iverson's near Peter's Creek - Santa Cruz Peninsula Comment
  UCR141432  Rubus parviflorus June Latting 1975-6-8 s.n. San Mateo Santa Cruz Mtns., Pescasero Road, 8 miles east of highway Calif. Hwy 1 122 Comment
  CAS-BOT-BC156662  Rubus spectabilis V. F. Hesse 1959-4-16 2587 San Mateo Gazos Creek near coast 45 Comment
  JEPS30401  Rubus spectabilis James B. Roof, Irja Knight 1963-4-24 San Mateo northwestern end San Bruno Mountain (Colma Canyon); Daly City, nw end of San Bruno Mountain, Colma Canyon 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-BC157082  Rubus ursinus L. R. Abrams 1914-10-14 5136 San Mateo Tunitas [Canon] Canyon Comment
  CAS-BOT-BC157086  Rubus ursinus Walter Knight; Irja Knight 1965-3-15 s.n. San Mateo Colma Canyon. San Bruno Mt. Comment
  CAS-BOT-BC157087  Rubus ursinus James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  CAS-BOT-BC157098  Rubus ursinus John Thomas Howell 1938-6-4 13889 San Mateo Burlingame Comment
  CAS-BOT-BC157109  Rubus ursinus John Thomas Howell 1938-6-4 13887 San Mateo Burlingame Comment
  CHSC39824  Rubus ursinus Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  CAS-BOT-BC422080  Rumex acetosella John H. Thomas 1958-3-19 7064 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 91 Comment
  CHSC39822  Rumex acetosella Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  CAS-BOT-BC422079  Rumex acetosella Daniel Cohen 1953-5-9 85 San Mateo La Honda Road near Skyline Drive. Comment
  CAS-BOT-BC422083  Rumex acetosella John H. Thomas 1963-5-20 10144 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  SD1201  Rumex acetosella U. S. Grant IV 1925-6-5 San Mateo San Mateo Comment
  JROH3304  Rumex conglomeratus John Hunter Thomas 1989-6-13 24768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1101195  Rumex conglomeratus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1581 San Mateo about 1 mi s Half Moon Bay Comment
  CAS-BOT-BC421822  Rumex conglomeratus John H. Thomas 1963-5-20 10145 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  UC1101234  Rumex crispus Malcolm A. Nobs and S. Galen Smith 1949-8-25 1572 San Mateo s of Rockaway Beach Comment
  CAS-BOT-BC433354  Rumex crispus Javier Penalosa 1963-2-23 2656 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC433355  Rumex crispus Walter Knight; Irja Knight 1965-4-24 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC433543  Rumex fueginus Ira L. Wiggins 1935-6-29 8049 San Mateo Near mouth of Pescadero Creek, 2 miles west of Pescadero Comment
  UC1094021  Rumex maritimus Lewis S. Rose 1956-8-13 56143 San Mateo Princeton 3 Comment
  CAS-BOT-BC433822  Rumex pulcher George Oberlander 1949-7-30 342 San Mateo San Francisco Watershed Reserve. Upper Crystal Spr. Lake Comment
  CAS-BOT-BC433826  Rumex pulcher W. R. Dudley 1893-5-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Millbrae. Comment
  UC569569  Rumex salicifolius var. crassus James Arata Karakawa 1937-10-20 228 San Mateo near Montara Comment
  RSA788844  Rumex salicifolius var. denticulatus Peter Rubtzoff 1980-8-4 9564 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC434133  Rumex transitorius Goodman 1918-7-23 s.n. San Mateo San Pedro Valley Comment
  JROH2215  Rupertia physodes John H. Thomas 1975-6-5 17945 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  JROH2216  Rupertia physodes John H. Thomas 1976-5-26 18158 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1109006  Ruppia cirrhosa H. E. Parks Oct 1928 San Mateo Laguna Salada Comment
  RSA800143  Ruta chalepensis Peter Rubtzoff 1988-4-12 9901 San Mateo San Bruno Mountain, on east side of Summit Road (former Radio Road), ca. 1 mi from San Bruno Mtn. Park entrance. Comment
  JROH1723  Sagina apetala Toni Corelli 2009-3-25 349 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road F along road 152 Comment
  JROH1715  Sagina apetala Oz Garton 1968-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA312360  Salicornia maritima H. L. Mason, Malcolm Nobs 1948-12-11 713 San Mateo Hwy 101 near shore of bay, at Whipple Avenue intersection, Redwood City. Comment
  CAS-BOT-BC103337  Salix bonplandiana W. R. Dudley 1900-3-18 s.n. San Mateo South of San Andreas Lake Comment
  SEINET12002759  Salix bonplandiana McCallum 1933-1 s.n. San Mateo near Searsville Lake Comment
  OBI75779  Salix exigua Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 122 Comment
  RSA185023  Salix exigua L. S. Rose 1965-3-8 65003 San Mateo Searsville Lake. 122 Comment
  CAS-BOT-BC125370  Salix lasiandra var. lasiandra W. R. Dudley 1898-4-24 s.n. San Mateo El Corte de Madera Creek Comment
  CAS-BOT-BC125373  Salix lasiandra var. lasiandra W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's by Peters Creek Comment
  JROH3869  Salix lasiandra var. lasiandra John H. Thomas 1967-3-26 12415 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD111565  Salix lasiandra var. lasiandra Janet Jacob 1951-4-1 56 San Mateo 7 miles east of Pescadero. Comment
  POM281339  Salix lasiolepis Lyman D. Benson 1931-2-28 2612 San Mateo Above Woodside, King's Mtn. Santa Cruz mtn range. San Francisco Bay watershed. 244 Comment
  RSA178596  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo Near jct of San Francisquito and Los Trancos creeks. About 2 miles from Stanford University. Comment
  POM281343  Salix lasiolepis Lyman D. Benson 1931-1-25 2577 San Mateo Near the Skyline Blvd. 5 miles S of La Honda Grade. 366 Comment
  SEINET5884190 Image available Salix lasiolepis L. S. Rose 1965-1 65004 San Mateo Searsville Lake. 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
  RSA788842  Salix lasiolepis var. bigelovii Peter Rubtzoff 1975-10-24 8433 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC108260  Salix lasiolepis var. bigelovii C. R. Ball; G. W. Hendry 1931-2-22 15 San Mateo In arroyo near San Gregoio Creek, 100 m. from ocean. Near sea level. Comment
  CAS-BOT-BC124488  Salix lasiolepis var. lasiolepis Lewis S. Rose 1965-3-8 65004 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC124492  Salix lasiolepis var. lasiolepis Ned Cahill 1974-7-14 358 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  RSA184900  Salix lucida subsp. lasiandra L. S. Rose 1965-3-16 65007 San Mateo Searsville Lake. 122 Comment
  CAS-BOT-BC126479  Salix sitchensis W. R. Dudley 1902-4-26 s.n. San Mateo Alpine Road Comment
  CAS-BOT-BC126480  Salix sitchensis Josephine D. Randall 1908-3-28 s.n. San Mateo [King's] Kings Mt. Road Comment
  CAS-BOT-BC126483  Salix sitchensis L. R. A. 1902-3-1 2272 San Mateo Kings Mountain Comment
  CDA33774  Salix sitchensis D. G. Kelch 2011-3-13 11 .051 San Mateo Pacifica. Along sea bluffs Comment
  POM87715  Salix sitchensis L. R. Abrams 1902-03 2272 San Mateo [Rim of?] Mountain Comment
  CAS-BOT-BC180791  Salsola soda William Anderson 1968-7-25 s.n. San Mateo In saline area at west approach of Bumbarton Bridge on south side of road. Comment
  RSA681669  Salvia sonomensis Annuschka Deb 1989-4-19 114 San Mateo YBN Berm near parking lot Comment
  UC1327249  Salvia spathacea John T. Doyen 1966-3-28 32 San Mateo San Bruno Mountains; near Radio Towers at top Comment
  SJSU15329  Salvia spathacea A. Hicks 1979-11-23 41 San Mateo near creek above gully at Chestnut and Hillside Blvd., South- west facing slope of San Bruno Mts., South San Francisco. 182 Comment
  RSA800280  Sambucus callicarpa Peter Rubtzoff 1988-6-9 9925 San Mateo San Bruno Mountains, upper part of East Fork Colma Creek Canyon. Comment
  RSA176527  Sambucus mexicana John H. Thomas 1963-6-23 10171 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
  CAS-BOT-BC246022  Sambucus nigra subsp. caerulea Margaret A. Barry 1937-6-24 188 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC246026  Sambucus nigra subsp. caerulea H. A. Dutton 1900-4-17 s.n. San Mateo Jasper Hill, Santa Cruz Peninsula Comment
  HSC23950  Sambucus nigra subsp. caerulea Mary Katherine Wicksten 1971-6-17 23 San Mateo Huddart Park, along Rd. near Redwood Shelter. Comment
  JROH1675  Sambucus nigra subsp. caerulea John Hunter Thomas 1985-5-22 23669 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC235073  Sambucus racemosa var. racemosa A. D. E. Elmer 1903-5-1 4663 San Mateo Butano Creek Comment
  CAS-BOT-BC257332  Sambucus racemosa var. racemosa Peter Rubtzoff 1988-6-9 9925 San Mateo San Bruno Mountains, upper part of East Fork Colma Creek Canyon. Comment
  CDA3947  Sanguisorba minor subsp. muricata T. C. Fuller 1974-5-21 19992 San Mateo San Pedro Valley County Park, east above the end of Linda Mar Boulevard, Pacifica. 0 Comment
  RSA187473  Sanicula arctopoides John H. Thomas 1964-4-30 10347 San Mateo San Bruno Mtn in northern part. Northern Coastal Scrub of Munz and Keck 305 Comment
  UC75021  Sanicula arctopoides Dr. E. L. Greene 1902-3-30 425 San Mateo Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  SEINET5570625  Sanicula arctopoides H. S. Gentry 1931-1 35 San Mateo Collected 2 miles W of San Bruno. Comment
  JROH5547  Sanicula bipinnata John Rawlings 2013-4-15 1169 San Mateo Jasper Ridge Biological Preserve, Stanford University. Southeast side of creek and about 75 meters upstream of bridge on Trail 11. 136 Comment
  JEPS127773  Sanicula bipinnatifida Adam C. Schneider with C. Matt Guilliams 2013-3-9 49 San Mateo Comment
  CAS-BOT-BC223319  Sanicula bipinnatifida Elizabeth McClintock; Philip Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain. East side of mountain, above Harold Ave., Brisbane Comment
  CAS-BOT-BC223324  Sanicula bipinnatifida W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Half Moon Bay Comment
  JROH333  Sanicula crassicaulis John H. Thomas 1971-5-30 15978 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH335  Sanicula crassicaulis John H. Thomas 1973-4-14 16552 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS85243  Sanicula hoffmannii Roy E. Buck and James A. West 1985-6-3 533 San Mateo on upper ne-facing slope of large gulch draining nw to Whitehouse Creek (ca 2.5 air km ne of Whitehouse Canyon Rd-CA Hwy 1 jct., 3.7 km nne of Franklin Point); Cascade Ranch 182 Comment
  JROH4419  Schoenoplectus acutus var. occidentalis John Hunter Thomas 1989-5-23 24748 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing. Comment
  CAS-BOT-BC111784  Schoenoplectus pungens var. longispicatus John Hunter Thomas 1960-6-25 8797 San Mateo Redwood City. Along or near a small creek running into Redwood Slough, 7 Comment
  CAS-BOT-BC111062  Scirpus microcarpus Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo Colma Canyon Comment
  UCD141269  Scirpus microcarpus Herbert L. Mason; Verne Grant 1946-8-28 13093 San Mateo one mile west of San Bruno between Santa Cruz and Daly City on Highway 5. Comment
  CAS-BOT-BC518999  Scoliopus bigelovii J. H. Thomas 1960-3-1 8539 San Mateo Along Kings Mt. road about 1/2 mile below Skyline Blvd. 609 Comment
  POM202952  Scoliopus bigelovii Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  UC142703  Scoliopus bigelovii Alice Eastwood 1902-2-28 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC519001  Scoliopus bigelovii C. F. Leithold 1896-2-24 s. n. San Mateo Woodside Hills Comment
  CAS-BOT-BC519018  Scoliopus bigelovii Alice Eastwood 1933-5-31 18842 San Mateo Butano Canon Comment
  JEPS62100  Scoliopus bigelovii Elsa Kraeger 1926-2-21 San Mateo n. La Honda Comment
  POM193870  Scoliopus bigelovii Le Roy Abrams 1904-3-7 s.n. San Mateo Bear Gulch. Santa Cruz Mountain Peninsula. Comment
  RSA299413  Scoliopus bigelovii Elsa Kraeger 1926-2-21 s.n. San Mateo N of La Honda. Comment
  SEINET12050525  Scoliopus bigelovii F. H. Utech 1988-1 88 -041 San Mateo 3.3 mi from junction of Kings Mt Rd & CA 35 on former enroute to Woodside 260 Comment
  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
  SEINET926247  Scoliopus bigelovii H. S. Gentry 1931-1 20 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  CDA7620  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  JROH4121  Scrophularia californica W. R. Dudley 1895-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  RSA187282  Scrophularia californica John H. Thomas 1965-4-29 10603 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  POM128330  Scrophularia californica R. L. Pendleton 1907-4-20 602 San Mateo Lake Merced. 30 Comment
  RSA131004  Scrophularia californica Deborah Hichborn 1920-4-20 s.n. San Mateo Near San Francisquito Creek. Santa Cruz Mountain Peninsula. Comment
  UCD124850  Scrophularia californica R. S. Woglum 1935-5-25 1167 San Mateo Southeast San Mateo County: San Francisco area, Skyline Drive to Big Basin. Comment
  CAS-BOT-BC59055  Sedum spathulifolium A. D. E. Elmer 1903-6-1 4550 San Mateo Toward San Mateo from Crystal Springs Lake Comment
  JROH1895  Sedum spathulifolium John H. Thomas 1971-4-25 15782 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC59271  Sedum spathulifolium W. R. Dudley 1894-4-21 s.n. San Mateo Rocks below Crystal Springs Reservoir. Comment
  JROH1896  Sedum spathulifolium H. J. Dengler 1972-5-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of Searsville Rocks Comment
  JROH1219  Senecio aronicoides John H. Thomas 1967-5-10 12855 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0012754  Senecio aronicoides John H. Thomas 1961-5-7 9308 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  RSA0012700  Senecio aronicoides C. F. Baker 1903-4-6 1900 San Mateo San Bruno Hills, San Francisco. [San Mateo] Comment
  JROH684  Senecio minimus Carol Zabel 2002-8-20 47 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 13 beneath east end of causeway bridge Comment
  CAS-BOT-BC85783  Sequoia sempervirens unspecified 1901-1-26 s.n. San Mateo Santa Cruz Peninsula, Coal Mine [Canon] Canyon Comment
  CAS-BOT-BC85777  Sequoia sempervirens W. R. Dudley 1897-1-1 s.n. San Mateo Santa Cruz Mountain Peninsula, by Hamilton's Comment
  CDA33644  Sesbania punicea Robin Breckenridge 2010-7-2 PDR# 1313483 San Mateo East Palo Alto; Cooley Ave. 0 Comment
  CDA2436  Setaria parviflora E. L. Labadie 1958-7-8 833 -58 San Mateo Redwood City. 0 Comment
  CDA43035  Setaria parviflora Eaton 2014-7-6 PDR# 010 P06220324 San Mateo Mapache Drive near Westridge Drive, Portola Valley. 0 Comment
  CDA6645  Sherardia arvensis D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  UCR101676  Sherardia arvensis George K. Helmkamp, E. A. Helmkamp 1998-5-16 3750 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  JROH3827  Sherardia arvensis John H. Thomas 1955-5-6 5018 A San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  SBBG30046  Sidalcea diploscypha L. S. Rose 1948-5-16 San Mateo Emerald Lake, hills W of Redwood City 152 Comment
  JEPS127779  Sidalcea malviflora subsp. laciniata Adam C. Schneider with C. Matt Guilliams 2013-3-9 32 San Mateo Comment
  JEPS48780  Sidalcea malviflora subsp. laciniata James G. Daly 1934-1 211 San Mateo branch of La Honda Canyon Santa Cruz Mts., , La Honda Canyon (San Gregorio Watershed) Comment
  POM282903  Sidalcea malviflora subsp. malviflora Lyman Benson 1931-3-3 2620 San Mateo Moss Beach. 15 Comment
  UC311135  Silene californica A. D. E. Elmer June, 1903 4446 San Mateo Crystal Springs Lake Comment
  UCD98646  Silene gallica W. A. Harvey; J. M. Tucker 1948-6-28 1696 San Mateo 3 miles north of Pescadero. Comment
  JROH1727  Silene laciniata subsp. californica Raymond R. White 1974-6-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Area H Comment
  CAS-BOT-BC384626  Silene laciniata subsp. californica L. Sigal 1969-7-1 s.n. San Mateo Belmont Comment
  JROH1233  Silybum marianum John H. Thomas 1973-3-12 16493 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18455  Sisyrinchium bellum Carl B. Wolf 1927-6-29 552 San Mateo South of Pebble Beach near Pescadero Comment
  HSC59826  Sisyrinchium bellum Clark L. Miller 1978-6-15 367 San Mateo 6 mi. S of Half Moon Bay off old Hwy. 1, 2 mi. in on Verde Rd. 61 Comment
  POM291007  Sisyrinchium bellum Lyman Benson 1931-3-15 2640 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  RSA120320  Sisyrinchium bellum S. S. Tillett, I. Sternback 1956-6-24 541 San Mateo Behind (n.) Portola Camp Store, just outside Portola State Park 396 Comment
  UCD138851  Sisyrinchium bellum R. S. Woglum 1935-5-24 1154 San Mateo San Francisco area, Skyline Drive south to Big Basin. Comment
  UCSB18427  Sisyrinchium bellum Muirhead, M. 1964-4-17 San Mateo Crocker Estate; Hillsborough 76 Comment
  UC518005  Smilacina stellata Lewis S. Rose 1933-4-9 33070 San Mateo Belmont Comment
  UCSC007781  Solanum douglasii Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  RSA34830  Solanum physalifolium var. nitidibaccatum I. L. Wiggins 1945-9-22 11196 San Mateo Moss Beach. Comment
  CAS-BOT-BC157040  Solanum umbelliferum Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Quarry 4 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
  HSC23784  Solanum umbelliferum Mary Katherine Wicksten 1971-6-17 58 San Mateo Huddart Park, above Oak Flat Comment
  JROH4188  Solanum umbelliferum John H. Thomas 1968-3-17 14192 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY820584  Solanum umbelliferum P. H. Raven 1950-4-16 1797 San Mateo San Bruno Mts. 244 Comment
  POM280568  Solanum umbelliferum Arthur L. Cohen 1935-4-21 605 San Mateo Jasper Ridge. Stanford U. Santa Cruz Mt Range. Comment
  UC1537406  Solanum umbelliferum Gordon H. True Jr. 1936-4-5 385 San Mateo between San Gregorio Pescadero (near coast) 30 Comment
  UCD136058  Solidago Collector Unknown 1925-6-15 1662 San Mateo Pescadero - Santa Cruz Road. Comment
  POM183401  Solidago canadensis subsp. elongata L. S. Rose 1931-9-19 s.n. San Mateo Kings Mountain. Comment
  RSA34004  Solidago canadensis subsp. elongata J. Wendell Howe 1930-5-27 s.n. San Mateo Pigeon Point Road. Comment
  CAS-BOT-BC365533  Solidago elongata R. E. Frenkel 1963-12-7 324 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.9 mile south-west of Spring Valley Road Comment
  SEINET11382904 Image available Solidago elongata Unknown 1931-1 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC365743  Solidago spathulata L. R. Abrams 1909-8-2 4251 San Mateo Santa Cruz Peninsula. Pebble Beach, Pescadero Comment
  JROH1237  Solidago velutina subsp. californica John Hunter Thomas 1990-7-28 24938 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC365927  Soliva sessilis John H. Thomas 1964-4-30 10370 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS27366  Soliva sessilis Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7626 San Mateo Guadalupe Valley side of the summit San Bruno Mountain (on lateral ridge below and se end of paved ridge-top road just e of KRON television tower and station); Guadalupe Valley side of the summit San Bruno Mountain 304 Comment
  JROH1249  Soliva sessilis John Hunter Thomas 1986-5-6 24017 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1253  Soliva sessilis John Hunter Thomas 1989-5-11 24736 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC365938  Soliva sessilis R. S. Ferris 1925-5-1 4157 San Mateo Selah Chamberlain Residence, Woodside Comment
  UCD23458  Soliva sessilis E. A. Parzail 1949-8-1 s.n. San Mateo 1144 Cortez Avenue, Burlingame. Comment
  JROH1257  Sonchus asper subsp. asper John H. Thomas 1974-8-11 17507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5949  Sparaxis tricolor Trevor Hebert, John Rawlings 2017-4-6 2015 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the Sand Hill Rd. fence-line northeast of the intersection of Road L and Road H 124 Comment
  POM182582  Sparganium erectum subsp. stoloniferum D. D. Keck 1931-8-6 1264 San Mateo Near Searsville Lake. 75 Comment
  CAS-BOT-BC236626  Spartina foliosa Ira L. Wiggins 1938-11-25 9213 San Mateo Along Dumbarton Bridge approach. Comment
  CAS-BOT-BC236627  Spartina foliosa Ira L. Wiggins 1938-11-25 9213 San Mateo Along Dumbarton Bridge approach. Comment
  UC625361  Spartina foliosa Ira L. Wiggins 1938-11-25 9213 San Mateo Dumbarton Bridge approach; Dumbarton Bridge Comment
  CAS-BOT-BC390006  Spergula arvensis Javier Penalosa 1963-3-30 2751 San Mateo San Bruno Mountain. Crest of ridge SW of Brisbane, 750ft. NW of power lines 304 Comment
  CAS-BOT-BC390012  Spergula arvensis Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. April Brook Comment
  JROH1745  Spergula arvensis John Hunter Thomas 1980-4-10 19881 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH1746  Spergula arvensis John Hunter Thomas 1981-4-7 20297 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH1769  Spergularia John Hunter Thomas 1988-5-25 24487 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  CAS-BOT-BC390204  Spergularia bocconi G. B. Rossbach; R. P. Rossbach 1940-6-20 737 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC390205  Spergularia bocconi Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. P.G.&E. Marsh Comment
  UCSB1896  Spergularia macrotheca Walker, Clifford 1954-4-20 San Mateo 50 yds. from ocean, 1 mi. S of Half Moon Bay Comment
  CAS-BOT-BC390454  Spergularia macrotheca var. macrotheca J. H. Thomas 1954-5-28 4244 San Mateo Guadalupe Valley, about 2 miles south of San Francisco - San Mateo County line 30 Comment
  CAS-BOT-BC390476  Spergularia macrotheca var. macrotheca Alice Eastwood 1937-7-25 18889 San Mateo Pebble Beach, Pescadero Comment
  SJSU15797  Spergularia macrotheca var. macrotheca Toni Corelli 2010-6-1 677 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay 23 Comment
  CAS-BOT-BC390472  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1940-6-20 738 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC390918  Spergularia marina W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Vicinity of Mussel Rock Comment
  CAS-BOT-BC390920  Spergularia marina Malcom A. Nobs; S. Galen Smith 1949-8-26 1596 San Mateo At the mouth of Pescadero Creek Comment
  SEINET6744710 Image available Stachys ajugoides L. S. Rose 1941-10-24 San Mateo So. Calif. Bot. 443 (1935). Comment
  SD39617  Stachys ajugoides var. ajugoides Edith A. Purer 1933-7-27 5358 San Mateo Pigeon Point Comment
  UC306581  Stachys ajugoides var. ajugoides A. D. E. Elmer June, 1903 4260 San Mateo Crystal Springs Lake Comment
  UC1537555  Stachys bullata Gordon H. True Jr. 1936-6-14 503 San Mateo canyon s Saledo Beach (near coast) 152 Comment
  RSA101015  Stachys bullata G. Oberlander 1949-4-30 139 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  POM204001  Stachys pycnantha L. S. Rose 1934-5-27 s.n. San Mateo Emerald Lake. Comment
  CDA38721  Stachys rigida subsp. quercetorum D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .17 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. 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
  CAS-BOT-BC164654  Stachys rigida subsp. quercetorum Peter Rubtzoff; Elizabeth McClintock; Barbara Deutsch 1978-6-4 9202 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC164655  Stachys rigida subsp. quercetorum Peter Rubtzoff 1977-6-21 9063 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction; East Fork Colma Creek Canyon, near upper rim. Comment
  JROH1273  Stebbinsoseris heterocarpa John Rawlings 2007-5-30 1035 San Mateo Jasper Ridge Biological Preserve, Stanford University; uphill from Escobar horse trail, 126 Comment
  CAS-BOT-BC394059  Stellaria media Josephine D. Randall 1908-2-16 s.n. San Mateo Corte de Madera Canon near Alpine Road; Santa Cruz Peninsula Comment
  CAS-BOT-BC394064  Stellaria media C. F. Baker 1902-4-1 492 San Mateo Foothills near Stanford University; Pacific Coast Comment
  CAS-BOT-BC394065  Stellaria media Robert Martineau 1974-3-27 11 San Mateo Foothills of the eastern side of the Santa Cruz Mountains. Five miles south of center of Palo Alto; Foothill Park, Palo Alto 548 Comment
  JROH1791  Stellaria nitens John Hunter Thomas 1988-5-16 24462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5735  Stellaria nitens John Rawlings 2015-4-5 1655 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  JROH1277  Stephanomeria virgata Toni Corelli 2006-8-8 316 a San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Road E at junction of Trail 14 106 Comment
  CAS-BOT-BC375908  Stephanomeria virgata George Oberlander 1950-7-15 1070 San Mateo San Francisco Watershed Reserve. On Cahill Ridge Comment
  CAS-BOT-BC375911  Stephanomeria virgata Le Roy Abrams 1902-9-28 3002 San Mateo New Grade Road - near Portola Comment
  JROH5334  Stipa pulchra John H. Thomas 1964-4-12 10311 San Mateo Jasper Ridge Biological Preserve, Stanford University. On slope to the east of the dam. Comment
  SBBG35017  Stylomecon heterophylla A. D. E. Elmer -May-1903 4921 San Mateo San Pedro [Point?] Comment
  CAS-BOT-BC271601  Symphoricarpos albus var. laevigatus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo East facing slope below parking lot, San Bruno Mountain Comment
  JEPS29414  Symphoricarpos albus var. laevigatus L. R. Heckard 1961-7-16 1261 San Mateo near San Bruno Mt. summit (ne of transmitting station KQED); San Bruno Mt. 335 Comment
  RSA46811  Symphoricarpos albus var. laevigatus Doris K. Kildale 1930-6-19 8017 San Mateo Kings Mountain. Comment
  CAS-BOT-BC271649  Symphoricarpos albus var. laevigatus Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC99061  Symphyotrichum chilense Walter Knight; Irja Knight; Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain - Lower part of Colma Canyon Comment
  CAS-BOT-BC99086  Symphyotrichum chilense John H. Thomas 1965-11-26 11454 San Mateo At intersection of Tunitas Creek Road and Lobos Creek cutoff 121 Comment
  UC1119618  Symphyotrichum chilense A. Wright 1928-9-11 San Mateo s of Chinese Cemetary; San Mateo Quad. 548 Comment
  CAS-BOT-BC99084  Symphyotrichum chilense W. R. Dudley 1895-9-21 s.n. San Mateo Menlo Park - Santa Cruz Mountain Peninsula Comment
  OBI59917  Symphyotrichum chilense David J. Keil 1988-11-19 21201 San Mateo Highway 1, south of Half Moon Bay Comment
  CAS-BOT-BC99387  Symphyotrichum subspicatum Phillip Wheeler 1965-5-23 s.n. San Mateo Radio Road, San Bruno Mountain Comment
  SD72386  Symphyotrichum subspicatum Darley F. Howe 1967-8-6 4369 San Mateo Half Moon Bay. Comment
  JROH1283  Tanacetum parthenium John Hunter Thomas 1992-5-26 25357 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing 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
  SD39527  Taraxia ovata Janet Tuaner 1933-4-18 2126 San Mateo Emerald Lake Comment
  SEINET3157058  Tauschia kelloggii L. S. Rose 1939-5-5 39092 San Mateo San Mateo Canyon 46 Comment
  UC766175  Tetragonia tetragonoides R. F. Hoover 1941-2-12 4754 San Mateo Half Moon Bay Comment
  CAS-BOT-BC438268  Tetragonia tetragonoides Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo San Bruno Mountain. Point San Bruno. Comment
  UC634944  Thalictrum fendleri H. L. Mason 1927-4-23 3680 San Mateo summit of road between La Honda and Pescadero Creek Comment
  JROH3509  Thalictrum fendleri var. polycarpum D. E. Breedlove 1971-5-31 19373 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH3514  Thalictrum fendleri var. polycarpum John Hunter Thomas 1988-4-7 24381 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near dam Comment
  UCR122981  Thalictrum fendleri var. polycarpum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6787 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-BC399852  Thalictrum polycarpum Alice Eastwood 1922-5-30 11330 San Mateo Crystal Springs Lake Comment
  POM20351  Thermopsis californica var. californica C. F. Baker 1902-5-1 685 San Mateo Crystal Springs Lake. Comment
  UC311389  Thermopsis californica var. californica A. D. E. Elmer May, 1903 4824 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC202036  Thinopyrum ponticum Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains. Along Bayshore Boulevard 15 Comment
  CAS-BOT-BC66663  Thysanocarpus curvipes John H. Thomas 1971-4-3 15745 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1602  Thysanocarpus curvipes John Hunter Thomas 1983-4-21 21632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH382  Torilis nodosa John H. Thomas 1977-5-14 18611 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4759  Toxicoscordion fremontii John H. Thomas 1977-4-8 18522 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC57068  Tragopogon porrifolius Steven Triano 1988-5-24 190 San Mateo On the sw corner of the jct. of Portola Road and Old La Honda Road, ca 3.2 mi s of Woodside. 115 Comment
  UCR12092  Tragopogon porrifolius Coleta A. Lawler 1964-4-19 50 San Mateo Skyline Blvd. 1.1 mi south of junction with College St. Near power line station, c. 5 mi west of Burlingame Comment
  UCR253355  Tragopogon porrifolius A. C. Sanders 2014-8-3 41235 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  RSA681672  Trichostema lanatum Deb Annuschka 1989-6-13 230 San Mateo Yerba Buena Herbarium Demonstration Garden. Comment
  POM63947  Trichostema lanceolatum C. F. Baker 1901-10-20 55 San Mateo Summit of Coast Range Comment
  JROH3394  Trientalis latifolia John Hunter Thomas 1978-4-28 19161 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA460866  Trientalis latifolia E. S. Spalding 1924-6-28 s.n. San Mateo San Mateo, La Honda Comment
  JROH2227  Trifolium albopurpureum John Hunter Thomas 1980-4-10 19868 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC33493  Trifolium albopurpureum var. dichotomum Mr. E. R. Drew April 1888 San Mateo San Pedro Ranch Comment
  UC903223  Trifolium barbigerum Ethel Crum 1934-4-29 1698 San Mateo s Pescadero (near ocean) Comment
  POM278010  Trifolium bifidum Lyman D. Benson 1935-5-5 6523 San Mateo Lake Searsville 152 Comment
  JROH2245  Trifolium bifidum var. bifidum John Hunter Thomas 1985-5-2 23584 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM20500  Trifolium bifidum var. decipiens A. D. E. Elmer 1903-04 4798 San Mateo Portola. Comment
  SEINET12157184  Trifolium ciliolatum Unknown 1932-1 9015 San Mateo Los Francos Woods Comment
  RSA131348  Trifolium depauperatum var. amplectens John H. Thomas 1955-5-6 4990 San Mateo Jasper Ridge about 3.5 miles southwest of Stanford University. 152 Comment
  UC630933  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-5-2 10098 San Mateo e Daly city (hills) Comment
  JROH2269  Trifolium depauperatum var. truncatum John H. Thomas 1964-4-19 10320 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR101649  Trifolium dubium George K. Helmkamp, E. A. Helmkamp 1998-5-16 3744 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  CHSC39833  Trifolium fucatum Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  UC631607  Trifolium fucatum A. A. Heller 1907-5-23 8560 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  SEINET10829824  Trifolium fucatum David D. Keck 1933-5-11 Keck 2295 San Mateo Montara Light House and Radio Station. On level plateau just above the ocean's waves, in loamy soil. Comment
  UCD78049  Trifolium glomeratum Robert E. Preston 2004-6-10 2253 San Mateo Ca. 8 miles NW of Boulder Creek, in Pescadero Creek watershed. 162 Comment
  CDA27958  Trifolium gracilentum T. C. Fuller 1967-6-13 15941 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  CDA27988  Trifolium macraei D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  SEINET10862726 Image available Trifolium macraei Adolph D. E. Elmer Elmer 4812 San Mateo San Pedro. Comment
  CDA27997  Trifolium microcephalum T. C. Fuller 1967-6-13 15940 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  JROH5840  Trifolium microcephalum Monika Bjorkman 1956-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; northeast of Escobar Gate Comment
  CDA28004  Trifolium microdon D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JROH2341  Trifolium oliganthum John Hunter Thomas 1984-4-24 23309 San Mateo Jasper Ridge Biological Preserve, Stanford University; end of causeway area where earth has been removed Comment
  JROH2368  Trifolium subterraneum John Hunter Thomas 1992-5-5 25216 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity 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
  JROH2370  Trifolium variegatum Carl B. Wolf 1929-4-24 3657 San Mateo Jasper Ridge Biological Preserve, Stanford University; so. west end of Jasper Ridge 152 Comment
  UC165542  Trifolium variegatum var. variegatum J. Burtt Davy 1893-6-22 838 San Mateo Lake Pilarcitos Comment
  JROH2395  Trifolium willdenovii John H. Thomas 1958-5-10 7146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2396  Trifolium willdenovii John H. Thomas 1967-4-28 12720 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2413  Trifolium willdenovii John Hunter Thomas 1988-5-3 24446 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC203045  Trifolium willdenovii A. D. E. Elmer May, 1903 4716 San Mateo Belmont Comment
  UC204176  Trifolium wormskioldii A. D. E. Elmer May 1903 4644 San Mateo Lake San Andreas Comment
  SEINET10928613  Trifolium wormskioldii var. wormskioldii Adolph D. E. Elmer Elmer 4644 San Mateo Lake San Andreas Comment
  SJSU15758  Trillium albidum Toni Corelli 2009-3-10 425 San Mateo Gazos Creek Road, San Mateo Coast 18 Comment
  JROH4725  Trillium chloropetalum John H. Thomas 1972-4-1 16047 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1134685  Trillium chloropetalum H. S. Yates 1935-2-3 5001 San Mateo 2 mi. s. San Gregorio; Santa Cruz Quad. Comment
  CAS-BOT-BC521008  Trillium chloropetalum var. chloropetalum James McMurphy 1902-3-22 s. n. San Mateo Near Portola Comment
  CAS-BOT-BC521069  Trillium chloropetalum var. giganteum C. F. Leithold 1894-7-29 s.n. San Mateo Santa Cruz Peninsula: Near La Honda Comment
  CAS-BOT-BC133435  Trillium ovatum John Thomas Howell 1924-2-23 267 San Mateo King Mountain Comment
  CAS-BOT-BC133446  Trillium ovatum J. H. Thomas 1949-3-29 190 San Mateo King's Mountain Comment
  CAS-BOT-BC133447  Trillium ovatum Elmer I. Applegate 1895-3-9 43 San Mateo Near Woodside Comment
  RSA378207  Trillium ovatum A. C. Life 1924-2-22 s.n. San Mateo Kings Mountain, Redwood Park. Comment
  CAS-BOT-BC133434  Trillium ovatum L. Smith 1960-4-7 72 San Mateo Huddart State Park, off Highway 5, 50 yards from Pack entrance Comment
  SBBG51419  Trillium ovatum J. Doty 1969-3-26 601 San Mateo St Hwy 34, 6 mi N of its jct with St Hwy 38 Comment
  SEINET8480550 Image available Trillium ovatum L. M. Henry, M. E. Springer 1946-7-21 370 San Mateo La Honda Comment
  SD39139  Trillium rivale Edith A. Purer 1933-4-18 3621 San Mateo No further locality information given on label on specimen sheet. Comment
Read comments
Nov 11 2010
  HSC20846  Triphysaria eriantha subsp. rosea L. S. Rose 1965-3-25 65010 San Mateo San Bruno Mtns., N end 122 Comment
  UC27281  Triphysaria eriantha subsp. rosea Ivar Tidestrom May, 1894 San Mateo Comment
  CAS-BOT-BC238572  Triphysaria floribunda C. F. B. 1902-3-22 346 San Mateo South San Francisco Comment
  CAS-BOT-BC238576  Triphysaria floribunda Roxana S. Ferris 1921-4-7 2134 San Mateo The Santa Cruz Mountain Peninsula. San Bruno Mt. 60 Comment
  SBBG54528  Triphysaria floribunda F. W. Pennell, D. D. Keck 1940-5-15 25426 San Mateo 4 mi W of Burlingame 152 Comment
  UC311192  Triphysaria floribunda A. D. E. Elmer April, 1903 4522 San Mateo South San Francisco Comment
  JEPS3988  Triphysaria pusilla Dr. L. M. Newlon 1919-4-14 4 San Mateo Moss Beach 22 Comment
  JROH4138  Triphysaria pusilla John H. Thomas 1971-4-10 15753 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG40480  Triphysaria versicolor subsp. versicolor W. J. Dress 1951-5-12 San Mateo 4.5 mi N of Pigeon Point Comment
  JROH4739  Triteleia hyacinthina John Hunter Thomas 1978-5-12 19201 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC526103  Triteleia ixioides subsp. ixioides C. F. Leithold 1893-5-27 s.n. San Mateo Santa Cruz Peninsula, road between Woodside and Kings Mountain Comment
  SD626  Triteleia laxa U. S. Grant IV 1925-6-15 San Mateo La Honda. Comment
  UC1133960  Triteleia laxa N. Carlson 1935-6-20 71 San Mateo between Slate and Oil Creek Santa Cruz Quad. 60 Comment
  UC1133973  Triteleia laxa W. W. Akey 1935-5-25 26 San Mateo near Bolsa Point; Santa Cruz quad 30 Comment
  CAS-BOT-BC526367  Triteleia laxa David D. Keck 1932-5-6 1466 San Mateo Belmont Comment
  SEINET12044760  Triteleia laxa L. S. Rose 1933-1 33169 San Mateo Redwood City Comment
  JEPS54258  Tropidocarpum gracile R. J. S. 1908-3-25 San Mateo Los Buellas hills Mt. Hamilton Range Comment
  CAS-BOT-BC74064  Turritis glabra Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills. Comment
  UC1176859  Typha domingensis Peter Rubtzoff 1957-11-20 3581 San Mateo 0.2 mi n San Gregorio road junction (ca 60 ft e of the road); ditch near coastal road Comment
  UC241806  Typha latifolia Herbert L. Mason 1949-7-7 14032 San Mateo mouth of Pescadero Creek Comment
  CAS-BOT-BC213100  Ulex europaeus J. H. Thomas 1961-5-7 9322 San Mateo San Bruno Mountain in northern part of county Comment
  UC2015626  Ulex europaeus Don Pendleton 1993-11-20 San Mateo Daly City at 333 Hickey Blvd. Comment
  RSA78564  Ulex europaeus Philip A. Munz 1953-2-1 18274 San Mateo North of Scott Valley. Comment
  CAS-BOT-BC91227  Umbellularia californica Ned Cahill 1974-4-30 234 San Mateo Near the intersection of Canada and Edgewater roads, about 3 miles westward from Redwood City. Comment
  UCR2995  Umbellularia californica Wm. Horn Jr. 1963-4-9 630409- 01 San Mateo San Francisco Bay region, Hillsborough, 2240 Redington Rd. 30 Comment
  JROH1294  Uropappus lindleyi John Hunter Thomas 1987-5-5 24248 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1298  Urospermum picroides Toni Corelli 2005-5-9 287 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road F 154 Comment
  UCR122986  Urtica dioica subsp. gracilis George K. Helmkamp, E. A. Helmkamp 2001-6-2 6780 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
  UC5968  Urtica dioica subsp. holosericea J. Burtt Davy 1895-3-20 1055 San Mateo Lake Pilarcitos Comment
  JROH4235  Urtica dioica subsp. holosericea John H. Thomas 1961-6-14 9547 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge across the two parts of Searsville Lake Comment
  CAS-BOT-BC238185  Vaccinium cespitosum Peter W. Fritsch; Doug Allshouse 2012-10-19 1950 San Mateo San Bruno Mountain County Park, west end of San Bruno Mountain, at Kamchatka Point just below the Ridge Trail 318 Comment
  CAS-BOT-BC199348  Vaccinium ovatum John Thomas Howell 1924-2-23 258 San Mateo King Mountain Comment
  CAS-BOT-BC199350  Vaccinium ovatum W. R. Dudley 1898-4-24 s.n. San Mateo El Corte Madera Comment
  CAS-BOT-BC199353  Vaccinium ovatum W. R. Dudley 1893-1-20 s.n. San Mateo Near La Honda Comment
  CAS-BOT-BC199368  Vaccinium ovatum James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  RSA174014  Vaccinium ovatum R. F. Thorne, Percy C. Everett, K. Thorne 1963-6-9 32222 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain. 335 Comment
  RSA471163  Vaccinium ovatum L. S. Rose 1938-2-23 38084 San Mateo Kings Mountain. 640 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
  UC877270  Vaccinium ovatum G. W. Reyburn 1908-3-28 San Mateo vicinity Woodside; Kings Mountain 701 Comment
  CAS-BOT-BC199469  Vaccinium parvifolium W. R. Dudley 1895-6-6 s.n. San Mateo On trail from Iversons, Pesadero Cr. to top Butano Ridge Comment
  RSA187270  Vaccinium parvifolium W. R. Dudley 1908-5-2 s.n. San Mateo Iverson's, upper Pescadero Creek. Comment
  CAS-BOT-BC76144  Vancouveria planipetala A. D. E. Elmer 1903-5-1 4922 San Mateo Iverson's Place. Pescadero Creek. Comment
  UCR2942  Vancouveria planipetala Wm. Horn Jr. 1963-4-9 630409- 3 San Mateo San Francisco Bay region, Hillsborough, 2240 Redington Rd. 30 Comment
  CAS-BOT-BC76146  Vancouveria planipetala W. R. Dudley 1901-12-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Above Gazos Creek. Comment
  CAS-BOT-BC389676  Verbena lasiostachys Maryann Danielson 1969-7-21 s.n. San Mateo On road into Mud Lake (San Francisco Watershed area-Dam side) Comment
  HSC24033  Verbena lasiostachys Mary Katherine Wicksten 1971-7-12 167 San Mateo Huddart Park, near Archery Flat, along King's Mtn. Rd. Comment
  JROH4275  Verbena lasiostachys var. scabrida John H. Thomas 1973-6-15 16834 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4276  Verbena lasiostachys var. scabrida John H. Thomas 1974-10-26 17626 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA82516  Verbena robusta J. T. Howell 1939-6-16 14745 San Mateo Crystal Springs Lake. Comment
  UC1618125  Veronica americana Donald G. Nelson 1940-7-7 697 San Mateo highway from Half Moon Bay to San Mateo (along Pilarcitos Creek); Pilarcitos Creek 76 Comment
  CAS-BOT-BC157690  Veronica americana Peter Rubtzoff 1978-7-8 9231 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC157693  Veronica americana Peter Rubtzoff; Roman Gankin 1975-5-21 7971 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH2425  Vicia americana subsp. americana Toni Corelli 2010-4-29 365 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 uphill 86 Comment
  POM17349  Vicia americana var. americana C. F. Baker 1903-4-6 1972 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  RSA128477  Vicia americana var. americana Peter H. Raven 1950-4-30 1958 San Mateo Montara 15 Comment
  SEINET12157777  Vicia americana var. villosa M. T. Doutt 1931-1 183 San Mateo Pigeon Pt Comment
  UC618588  Vicia benghalensis John Thomas Howell 1938-6-4 13886 San Mateo Burlingame Comment
  CHSC27883  Vicia gigantea Susan Perkins 1978-3-24 14 San Mateo Stage Road, 4 mi. s of San Gregorio, 2.5 mi n of Pescadeero, ca. 8 mi sw of La Honda. 60 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
  UCR123141  Vicia sativa subsp. sativa George K. Helmkamp, E. A. Helmkamp 2001-6-2 6765 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  SD148148  Vicia tetrasperma G. K. Helmkamp, E. A. Helmkamp 2001-6-2 6769 San Mateo Central CA coast, Purissima Roas east of Half Moon Bay, 1.9 miles east of CA-1, disturbed roadside soil 167 Comment
  CAS-BOT-BC264038  Viola adunca Rimo Bacigalupi 1922-3-27 s.n. San Mateo Road between Whitehouse Creek and Gazos Creek Comment
  UC483497  Viola adunca Ira L. Wiggins 1931-2-21 5091 a San Mateo Pescadero Beach Comment
  CAS-BOT-BC536574  Viola glabella Peter Rubtzoff 1953-5-14 1351 San Mateo Pilarcitos Creek canyon, 1 to 2 mi downstream from Pilarcitos Lake Comment
  CAS-BOT-BC536828  Viola glabella Roxana S. Ferris 1921-3-20 2110 San Mateo Santa Cruz Mountain Peninsula: Pescadero Creek in canon 6 mi above Pescadero Comment
  POM134804  Viola ocellata C. F. Baker 1902-3-18 333 San Mateo King's Mountain Comment
  RSA130815  Viola ocellata M. N. paulson 1917-04 s.n. San Mateo Kings Mt Road. Comment
  JROH4285  Viola ocellata H. J. Dengler 1972-5-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eight feet from S.F. Creek by great boulder at redwood grove by Searsville Rocks. Comment
  POM128419  Viola pedunculata L. R. Abrams 1902-4-13 2328 San Mateo San Andreas Lake. Comment
  HSC21838  Viola pedunculata L. S. Rose 1965-3-25 65009 San Mateo San Bruno Mtns., N end 122 Comment
  POM135245  Viola sempervirens A. D. E. Elmer 1900-04 2100 San Mateo Kings Mtn. Comment
  UC581493  Viola sempervirens H. L. Mason 1927-4-23 3668 San Mateo La Honda Comment
  CAS-BOT-BC199852  Vulpia bromoides W. R. Dudley 1899-5-14 s.n. San Mateo Top of Sneath Ranch Hill Comment
  CAS-BOT-BC199856  Vulpia bromoides John H. Thomas 1963-5-20 10140 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC210156  Vulpia bromoides Peter Rubtzoff 1975-5-21 7967 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA790284  Vulpia bromoides Peter Rubtzoff 1977-6-7 9031 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  POM296616  Vulpia microstachys Lyman Benson 1935-5-5 6534 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  CAS-BOT-BC185766  Vulpia myuros subsp. megalura Fred Hemphill 1973-4-22 799 San Mateo San Carl