Search Results — 2000 specimen records retrieved (1342 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=SAN MATEO; Source=All;   

Mapping Options:

BerkeleyMapper with county and bioregion layers
BerkeleyMapper without layers.
KML export
(Note: only records with coordinates are mappable)

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

PLEASE NOTE: Due to changes in newer versions of Excel, directly copying text from the above selected results does not produce a usable table.
    Follow these steps:
      1. The contents of the selected results window must be copied into a text editor like TextEdit for Mac or WordPad for Windows
      2. The selected results must be saved as a new text document.
      3. This new text document can now be copied into Excel or imported as a tab delimited text file.

(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.

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
Turn on yellow flags to show possible range discrepancies. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SD12566  Abronia latifolia Edith Purer 1933-7-27 5381 San Mateo Two miles south of Pigeon Point Comment
  UC101374  Abronia umbellata C. F. Baker 1902-10-1 1742 San Mateo Pillar Point Comment
Read comments
Feb 2 2012
  CAS-BOT-BC233754  Abronia umbellata W. R. Dudley 1891-7-5 2 San Mateo Pescadero, Santa Cruz Peninsula 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-BC451114  Acaena pinnatifida var. californica James McMurphy 1909-5-25 s.n. San Mateo Grade west of Crystal Springs Comment
  CAS-BOT-BC451122  Acaena pinnatifida var. californica W. R. Dudley 1901-5-11 s.n. San Mateo Near Millbrae; Santa Cruz Peninsula Comment
  CAS-BOT-BC451127  Acaena pinnatifida var. californica Elizabeth McClintock 1965-3-28 s.n. San Mateo At Flower Garden adjacent to April Brook; San Bruno Mountains Comment
  JEPS70085  Acanthomintha duttonii L. R. Heckard and J. H. Thomas 1972-4-16 2903 San Mateo Upper Crystal Springs Reservoir, below and w of State Hwy interchange Upper Crystal Springs Reservoir Comment
  UC311590  Acanthomintha duttonii Harry A. Dutton and Miss H. A. Walker May 26 1915-May 29 1915 3819 San Mateo near Menlo Golf Club Comment
  POM294370  Acanthomintha obovata subsp. duttonii Dutton, Walker 1915-1 s.n. San Mateo Menlo Park Comment
  RSA18365  Acanthomintha obovata subsp. duttonii Carl B. Wolf 1929-5-24 3723 San Mateo upper Emeral Lake, Back of Redwood City Comment
  CAS-BOT-BC333290  Acer macrophyllum A. D. E. Elmer 1903-5-1 4509 San Mateo Portola Comment
  JROH163  Acer macrophyllum John Hunter Thomas 1989-5-11 24733 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road in grassy area above San Francisquito Creek and below dam 87 Comment
  RSA116908  Acer macrophyllum W. R. Dudley 1906-6-14 s.n. San Mateo San Francisquito Creek, near Cedro Cottage Stanford University Comment
  SJSU10875  Acer macrophyllum E. C. Garbett 1960-4-13 San Mateo Corte Madera Creek, Alpine Rd 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
  CAS-BOT-BC21593  Achillea millefolium Javier Penalosa 1963-3-30 2750 San Mateo North of Randolph Drive at Hillside Blvd. in SSF 289 Comment
  JROH450  Achillea millefolium John Hunter Thomas 1986-5-6 24016 San Mateo Jasper Ridge Biological Preserve, Stanford University 181 Comment
  CAS-BOT-BC21599  Achillea millefolium Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Colma Canyon. Comment
  SEINET10758616  Achillea millefolium Thomas B. Croat 1966-6-20 Croat 1997 San Mateo 1 mile N of Montara, sandy banks along Pacific. Comment
  RSA18454  Achillea millefolium var. arenicola Carl B. Wolf 1927-6-29 s.n. San Mateo Along coast south of Pebble Beach near Pescadero. Comment
  JROH459  Achyrachaena mollis John H. Thomas 1963-5-12 10079 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
  JROH2052  Acmispon brachycarpus Toni Corelli 2005-6-8 293 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 Comment
  OBI12966  Acmispon glaber var. glaber Robert F. Hoover 1964-9-10 9290 San Mateo Devil's slide, between Pedro-Point and Montara Comment
  JROH2077  Acmispon strigosus D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north slope, Searsville Ridge Comment
  JROH2109  Acmispon strigosus John H. Thomas 1961-4-29 9193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2083  Acmispon wrangelianus John H. Thomas 1955-5-6 4991 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2103  Acmispon wrangelianus John Hunter Thomas 1980-4-10 19874 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD35770  Acmispon wrangelianus Beecher Crampton 1962-6-11 6491 San Mateo Pacifica, north city limits, along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  CAS-BOT-BC391674  Actaea rubra A. D. E. Elmer 1903-5-1 4703 San Mateo Butano Creek Comment
  CAS-BOT-BC391680  Actaea rubra George Oberlander 1949-6-25 237 San Mateo San Francisco Watershed Reserve. Near San Andreas Lake Comment
  RSA523414  Actaea rubra subsp. arguta G. H. True 1936-4-5 390 San Mateo Canyon between San Gregorio and Pescadero 152 Comment
  SEINET8216770  Adelinia grandis L. E. Detling 1933-3-20 1122 San Mateo Skyline Blvd, [State Highway 35]. Comment
  CAS-BOT-BC140000  Adenostoma fasciculatum Fred Hemphill 1973-4-22 722 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  LA27800  Adenostoma fasciculatum L. S. Rose; 1941-6-12 41270 San Mateo Rocky ridges, Emerald lake, hills W. of Redwood City 120.0 Comment
  JROH3580  Adenostoma fasciculatum var. fasciculatum John Gillespie 1927-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3586  Adenostoma fasciculatum var. fasciculatum John H. Thomas 1974-8-3 17591 San Mateo Jasper Ridge Biological Preserve, Stanford University 137 Comment
  RSA120509  Adiantum aleuticum S. S. Tillett, I. Sternback 1956-6-25 547 San Mateo Along Patterson Creek, on Middleton property just above entrance to Portola State beach. 366 Comment
  CAS-BOT-BC65673  Adiantum jordanii Elizabeth McClintock 1963-2-16 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC202667  Aesculus californica Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC202671  Aesculus californica A. D. E. Elmer 1903-6-1 4258 San Mateo Crystal Springs Lake Comment
  RSA12768  Aesculus californica Carl B. Wolf 1934-11-13 6242 San Mateo Menlo Park, in vacant area at Cambridge Ave and Cornell Road, NW of San Francisquito Creek. 15 Comment
  UCR3560  Aesculus californica Wm. Horn Jr. 1963-6-10 630610- 2 San Mateo San Francisco Bay Region, Hillsborough [Burlingame], 2240 Redington Road 30 Comment
  JROH484  Agoseris grandiflora var. grandiflora John Hunter Thomas 1981-5-8 20557 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC46128  Agoseris heterophylla Ned Cahill 1974-4-29 212 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC46172  Agoseris heterophylla W. R. Dudley 1906-5-13 s.n. San Mateo S.W. of San Mateo Comment
  POM52211  Agoseris heterophylla C. F. Baker 1904-04 661 San Mateo Near Stanford University Comment
  CAS-BOT-BC22831  Agoseris heterophylla var. cryptopleura Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon. Comment
  CAS-BOT-BC15231  Agoseris hirsuta W. R. Dudley 1905-6-19 s.n. San Mateo Alpine School House, Black Mountain Comment
  RSA18496  Agoseris hirsuta C. B. Wolf 1927-7-14 624 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  SACT000119  Agrostis alba Malcolm Nobs, S. Smith 1949-8-25 San Mateo Marshes of Sharp Park 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
  CAS-BOT-BC127466  Agrostis densiflora John H. Thomas 1963-5-20 10153 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 miles northwest of Santa Cruz. Comment
  UCD52025  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo State Hwy. 1, 5 miles south of San Francisco. Comment
  CAS-BOT-BC127381  Agrostis exarata Michener; Bioletti 1893-6-1 132 San Mateo South Pilarcitos. Comment
  JEPS129817  Agrostis exarata John Rawlings, Ken Hickman 2017-6-3 2095 B San Mateo Highway 92 west on ramp to Highway 280 north (Caltrans Right Way). Comment
  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
  SEINET7594094 Image available Agrostis microphylla E. B. Copeland 1903-1 3308 San Mateo Montara Point Comment
  JROH4789  Agrostis pallens John H. Thomas 1971-5-30 15964 San Mateo Jasper Ridge Biological Preserve, Stanford University 128 Comment
  JROH4802  Agrostis pallens John Rawlings 2011-6-14 1073 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill side of Trail 5. 119 Comment
  SJSU16010  Agrostis pallens John Rawlings, Toni Corelli 2016-5-27 1847 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  JROH4157  Ailanthus altissima John H. Thomas 1980-11-18 20172 San Mateo Jasper Ridge Biological Preserve, Stanford University 98 Comment
  JROH4823  Aira caryophyllea John H. Thomas 1958-5-10 7153 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4829  Aira caryophyllea John H. Thomas 1984-5-3 23333 San Mateo Jasper Ridge Biological Preserve, Stanford University 159 Comment
  JROH6210  Aira caryophyllea John Rawlings 2014-3-25 1241 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 at the Zoology Cabin foundation site 75 Comment
  RSA320915  Aira caryophyllea Robert A. Norris 1984-3-21 4652 San Mateo Blue Blossom Hill, San Bruno Mts. 357 Comment
  CAS-BOT-BC138231  Aira caryophyllea var. caryophyllea Walter Knight; Irja Knight 1965-5-9 s.n. San Mateo San Bruno Mountain. Devil's Arroyo. 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-BC138242  Aira caryophyllea var. caryophyllea John H. Thomas 1955-4-6 4845 San Mateo San Bruno Mountain just north of South San Francisco. 91 Comment
  CAS-BOT-BC138247  Aira caryophyllea var. caryophyllea Le Roy Abrams 1902-5-4 2405 San Mateo Woodside. Comment
  JROH4298  Alisma triviale L. R. Abrams 1917-10-9 6865 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH4542  Allium amplectens John Hunter Thomas 1980-5-6 19928 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  SJSU657  Allium falcifolium A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville Lake Comment
  UC306609  Allium falcifolium A. D. E. Elmer June, 1903 4831 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC469038  Allium falcifolium Lawrence Beane 1949-4-23 188 San Mateo Hillsides west of Redwood City Comment
  CAS-BOT-BC471100  Allium lacunosum var. lacunosum Lewis S. Rose 1931-5-15 s.n. San Mateo Emerald Lake, west of Redwood City Comment
  POM169852  Allium peninsulare var. franciscanum A. D. E. Elmer 1903-06 s.n. San Mateo San Mateo Comment
  JROH1327  Alnus rhombifolia John H. Thomas 1971-5-30 15981 San Mateo Jasper Ridge Biological Preserve, Stanford University; along creek below dam Comment
  RSA107019  Alnus rubra L. S. Rose 1955-11-7 55189 San Mateo Tunitos. 30 Comment
  RSA181202  Alnus rubra John H. Thomas 1965-11-26 11456 San Mateo At intersection of Tunitas Creek Road and Lobos Creek cutoff. 122 Comment
  SEINET10919408  Alnus rubra LeRoy R. Abrams Abrams s.n. San Mateo Near Rescadero on road to Half-Moon Bay. Santa Cruz Mountain Peninsula. Comment
  SJSU10489  Alopecurus pratensis S. H. Casey & C. A. Brock 1975-6-20 546 San Mateo by Old Woodside Store, Woodside 134 Comment
  JROH176  Amaranthus albus John Hunter Thomas 1977-6-16 18786 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC44928  Ambrosia chamissonis Lewis S. Rose 1956-8-13 56144 San Mateo Princeton sand dunes 6 Comment
  RSA181301  Amelanchier pallida John H. Thomas 1965-5-15 10657 San Mateo Santa Clara County: Mt. Hamilton Range road banks 1 mile toward San Jose along the Hwy from Smith Creek. Comment
  CAS-BOT-BC214047  Amsinckia Lewis S. Rose 1933-5-17 33174 San Mateo Redwood City Comment
  JROH1343  Amsinckia intermedia John Hunter Thomas 1983-4-5 21321 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  NY380647  Amsinckia lunaris A. A. Heller 1907-5-23 8555 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  JROH1355  Amsinckia menziesii John Hunter Thomas 1992-4-23 25162 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  JEPS127880  Anagallis arvensis Adam C. Schneider 2013-5-17 134 San Mateo Crystal Springs Reservoir Comment
  JROH3373  Anagallis minima John H. Thomas 1973-4-14 16563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC45193  Anaphalis margaritacea Josephine D. Randall 1907-7-28 45 San Mateo Iverson's near Pescadero Creek Comment
  CAS-BOT-BC391911  Anemone grayi A. D. E. Elmer 1903-4-1 4844 San Mateo King's Mountain Comment
  CAS-BOT-BC391914  Anemone grayi J. H. Thomas 1949-4-14 274 San Mateo Kings Mountain Comment
  CAS-BOT-BC391922  Anemone grayi George Oberlander 1950-3-18 354 San Mateo San Francisco Watershed Reserve. On Cahill Ridge Comment
  CAS-BOT-BC391923  Anemone grayi Mrs. H. M. Mitchell 1932-3-31 s.n. San Mateo Skyline Boulevard Comment
  POM176875  Anemone grayi W. R. Dudley 1894-3-26 s.n. San Mateo Redwoods beyond King's Mt. House Comment
  CAS-BOT-BC273173  Anisocarpus madioides Ira L. Wiggins 1925-4-1 1663 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  UC917258  Anisocarpus madioides W. A. Harvey and J. M. Tucker 1948-6-29 1704 San Mateo just w junction with Highway 5 (Skyline Blvd.) (beside road to Portola State Park) Comment
  JROH5204  Anthoxanthum occidentale Volney Rattan 1867-3-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwoods, Searsville Comment
  JROH202  Anthriscus caucalis John Hunter Thomas 1981-4-21 20456 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15411  Anthriscus caucalis Toni Corelli 2010-5-13 611 San Mateo Pedro Point Headlands, Pacifica CA; along Arroyo Trail 160 Comment
  JROH195  Anthriscus caucalis Richard L. Garber 1971-5-11 9 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA101012  Anthriscus caucalis G. Oberlander 1950-4-16 735 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve Comment
  JROH3600  Aphanes occidentalis John H. Thomas 1963-4-17 10036 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near the "riders shack" at the Searsville end of the ridge Comment
  JROH3606  Aphanes occidentalis John Hunter Thomas 1981-4-5 20269 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  CAS-BOT-BC454492  Aphanes occidentalis Ned Cahill 1974-4-29 197 San Mateo Serpentine fields bordered by chapparal near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City Comment
  CAS-BOT-BC454493  Aphanes occidentalis Ned Cahill 1975-2-21 406 San Mateo Chapparal near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City Comment
  SEINET11080240  Apium leptophyllum J. T. Howell 1975-9-13 51507 San Mateo Burlington, Hillside Street just W of El Camino. Comment
  CAS-BOT-BC392063  Aquilegia eximia A. D. E. Elmer 1903-6-1 4271 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC405896  Aquilegia formosa J. H. Thomas 1949-4-14 276 San Mateo King's Mountain Comment
  JROH3401  Aquilegia formosa John Hunter Thomas 1985-4-22 23539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR122980  Aquilegia formosa George K. Helmkamp, E. A. Helmkamp 2001-6-2 6772 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
  UC635107  Aquilegia formosa H. L. Mason 1927-4-23 3674 San Mateo summit of rd betw La Hunda and Pescadero Creek Comment
  CAS-BOT-BC17320  Arabis blepharophylla Alice Eastwood 1913-2-22 2453 San Mateo San Bruno Hills. Comment
  OBI15221  Arabis blepharophylla Lewis S. Rose 1961-4-5 61032 San Mateo San Bruno Mts 366 Comment
  UC75343  Arabis blepharophylla C. F. Baker 1903-4-6 1881 San Mateo San Bruno Hills Comment
  UC967208  Arabis blepharophylla L. Constance, R. Bacigalupi, and C. R. Bell 1951-3-25 3369 San Mateo se side Colma Canyon 60 Comment
  UCR64488  Arabis blepharophylla Lincoln Constance, R. Bacigalupi, C. R. Bell 1951-3-25 s.n. San Mateo SE side of Colma Canyon 61 Comment
  UC876360  Arbutus menziesii Lewis S. Rose 1935-3-7 35019 San Mateo Woodside Comment
  CAS-BOT-BC24163  Arctostaphylos John H. Thomas 1967-2-9 12403 San Mateo Montara Mountain in Northern part of county. Between Pacifica and Montara. Comment
  CAS-BOT-BC24129  Arctostaphylos andersonii Elmer I. Applegate 1895-3-9 304 San Mateo Woodside Comment
  SEINET11984878  Arctostaphylos andersonii R. Gankin, Jaacov, J. B. 1965-1 384 San Mateo CA 35 (Skyline Blvd), 1.1 mi N of junction with CA 84 Comment
  JROH1922  Arctostaphylos canescens subsp. canescens L. R. Abrams 1910-8-14 4990 San Mateo Jasper Ridge, near Stanford University Comment
  POM285158  Arctostaphylos columbiana Lyman Benson 1928-12-15 835 San Mateo La Honda. 457 Comment
  CAS-BOT-BC23508  Arctostaphylos crustacea L. S. Rose 1932-1-29 3221 San Mateo Belmont Comment
  CAS-BOT-BC23511  Arctostaphylos crustacea C. F. Baker 1902-3-18 327 San Mateo King's Mountain Comment
  CAS-BOT-BC23544  Arctostaphylos crustacea J. I. McMurphy 1906-3-9 7 San Mateo King's Mt., Santa Cruz Mts. 487 Comment
  OBI14756  Arctostaphylos crustacea Lewis S. Rose 1961-2-16 61002 San Mateo Hills W of Belmont 183 Comment
  SEINET5788098 Image available Arctostaphylos crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain, CA Comment
  CAS-BOT-BC23545  Arctostaphylos crustacea Mrs. S. G. Suttiffe 1933-4-5 s.n. San Mateo Las Lunitas Canyon, King Mt. Comment
  SEINET11988253  Arctostaphylos crustacea Unknown 1959-1 321 San Mateo 3.5 mi from junction CA 5 on Kings Mt. Rd Comment
  SEINET11989198  Arctostaphylos crustacea E. McClintock, Knight, W.; Knight, I. 1982-1 4645 San Mateo San Pedro County Park, near Pacifica Comment
  RSA681636  Arctostaphylos cruzensis Annuschka Deb 1989-1-20 1 San Mateo Woodside. Comment
Read comments
Mar 21 2015
  RSA681637  Arctostaphylos densiflora Annuschka Deb 1989-1-27 5 San Mateo Woodside. Comment
  SEINET3410941 Image available Arctostaphylos glandulosa Lewis S. Rose 1932-1-29 3221 San Mateo Belmont. Comment
  CAS-BOT-BC24731  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4417 San Mateo San Bruno Mtn. Buckeye Canyon on Oak Ridge. 137 Comment
  CAS-BOT-BC24488  Arctostaphylos imbricata Lewis S. Rose 1955-2-25 55002 San Mateo San Bruno Hills. Type Locality. Comment
  CAS-BOT-BC24491  Arctostaphylos imbricata Arthur L. Menzies 1963-3-10 s.n. San Mateo San Bruno Hills Comment
  JEPS27359  Arctostaphylos imbricata Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7619 San Mateo lateral ridge below and se of end of paved ridgetop rd just e of KRON TV tower and station (on Guadalupe Valley side of mt.); San Bruno Mountain 304 Comment
  OBI14661  Arctostaphylos imbricata Robert F. Hoover 1964-4-24 8742 San Mateo San Bruno Mt Comment
  RSA632766  Arctostaphylos imbricata Jon E. Keeley 1996-6-24 27565 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  CAS-BOT-BC38523  Arctostaphylos montaraensis Jacob Sigg; Elizabeth McClintock; Walter Knight; Irja Knight 1981-3-11 4087 San Mateo Collected from near Pacific Rock on San Bruno Mt. Comment
  SEINET11989280  Arctostaphylos montaraensis R. Gankin, Hildreth, W. R. 1966-1 738 San Mateo Montara Mountain Comment
  CAS-BOT-BC39823  Arctostaphylos pacifica Walter Knight; Irja Knight 1981-3-1 4049 San Mateo From Tilden Botanic Garden, Berkeley. Originally collected from San Bruno Mountain. Comment
  CAS-BOT-BC44742  Arctostaphylos regismontana J. H. Thomas 1949-3-29 2000 San Mateo Kings Mt. Rd. Comment
  OBI14513  Arctostaphylos regismontana Lewis S. Rose 1961-2-16 61003 San Mateo Kings Mountain 610 Comment
  UC311533  Arctostaphylos regismontana A. D. E. Elmer March 1903 4537 San Mateo King's Mountain Comment
  CAS-BOT-BC44671  Arctostaphylos sensitiva W. R. Dudley 1899-1-2 s.n. San Mateo On dry hills between Butano Cr. and Little Butano Cr. - Santa Cruz Mountain Peninsula Comment
  SEINET11989291  Arctostaphylos tomentosa S. W. Edwards 1982-1 s.n. San Mateo Foothill Park near summit of SW ridge Comment
  RSA380889  Arctostaphylos tomentosa subsp. crinita Roman Gankin 1966-5-17 739 San Mateo ca. .4 mile northeast of Peak Mountain of Montara Mountain range. 488 Comment
  HSC7756  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1969-3-27 69006 San Mateo Kings Mountain Road, 4 mi. W of Woodside 305 Comment
  POM131770  Arctostaphylos tomentosa subsp. crustacea C. F. Baker 1902-5-10 817 San Mateo Kings Mountain. Comment
  POM132204  Arctostaphylos tomentosa subsp. crustacea A. D. E. Elmer 1903-05 4558 San Mateo Kings 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
  RSA636840  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24652 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636841  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24653 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120127  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1935-1-25 1471 San Mateo 2 1/2 mi nw Sierra Moreno Peak; Santa Cruz Quadrangle 609 Comment
  UC1137485  Arctostaphylos tomentosa subsp. rosei G. E. Sindel 1935-8-20 337 San Mateo 1/2 mi n Sierra Moreno; Santa Cruz Quadrangle Comment
  POM367475  Arctostaphylos tomentosa subsp. tomentosa L. H. Jones 1909-3-5 s.n.. San Mateo Summit and West side of Jasper Ridge, Stanford University. 183 Comment
  POM286194  Arctostaphylos tomentosa subsp. tomentosiformis Lyman Benson 1935-3-10 6255 San Mateo La Honda Grade. 518 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
  SBBG21954  Arctostaphylos uva-ursi R. F. Thorne with P. C. Everett 1963-6-9 32218 San Mateo top of San Bruno Mtn, near the TV Tower 335 Comment
  UCD52149  Arctostaphylos uva-ursi Walter and Irja Knight; Elizabeth McClintock 1982-3-27 4494 San Mateo Kamchatka Point, San Bruno Mountain. San Mateo County. 320 Comment
  SEINET11987228  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 3891 San Mateo Tilden Botanic Garden, Berkeley, orig. from San Bruno Mountain Comment
  CAS-BOT-BC27300  Arctostaphylos uva-ursi var. suborbiculata W. Knight; Irja Knight; Elizabeth McClintock 1981-7-3 4492 San Mateo Kamchatka Point, San Bruno Mountain Comment
  SEINET11989128  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I. 1981-1 4540 San Mateo Kamchatka Point, San Bruno Mountain 351 Comment
  RSA0008939  Arctostaphylos viscida subsp. viscida Edward L. Greene 1902-3-18 10654 San Mateo King's Mountain. Comment
  CAS-BOT-BC401713  Argemone munita subsp. munita J. E. McClellan 1968-8-2 s.n. San Mateo Westerly side of highway 1 about 1/4 mile north from Cascade Ranch entrance, north of Ano Nuevo Pt., near highway post No. 5 M.3039 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
  SEINET11929723  Armeria maritima L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt. 1 Comment
  RSA523911  Armeria maritima subsp. californica Gordon H. True Jr. 1936-6-7 485 San Mateo 4 miles S of Pescadero. 15 Comment
  UC1537507  Armeria maritima subsp. californica Gordon H. True Jr. 1936-6-7 485 San Mateo 4 mi s Pescadero (top of ocean bluff) 15 Comment
  JROH512  Arnica discoidea Herbert L. Mason 1921-5-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Redwood area 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
  RSA116788  Artemisia biennis Roxana S. Ferris 1924-10-6 4096 San Mateo Searville Lake on Portola Hwy. Comment
  CAS-BOT-BC84881  Artemisia californica James McMurphy 1905-10-1 s.n. San Mateo Corte de Madera Creek Comment
  SEINET11853229  Artemisia californica Unknown 1930-1 7303 San Mateo Menlo Park Golf Court Comment
  JEPS44413  Artemisia douglasiana Lewis S. Rose 1965-9-4 65101 San Mateo Skyline Blvd and Half Moon Bay Road Cahill Ridge, Skyline Blvd and Half Moon Bay Road 243 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
  RSA17888  Artemisia douglasiana C. B. Wolf 1927-7-29 s.n. San Mateo Summit La Honda Grade Comment
  SACT000356  Arundo donax Malcolm Nobs, S. Smith 1949-8-25 San Mateo on bank in marsh, 6-12 feet tall, with typha, scirpus, potameton, polygonum, and lactuca. Brackish marsh Comment
  CAS-BOT-BC400512  Asarum caudatum W. R. Dudley 1898-4-24 s.n. San Mateo Santa Cruz Mountain Peninsula. Near El Corte de Madera Creek Comment
  JROH436  Asclepias fascicularis John Hunter Thomas 1982-9-23 21161 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10580520  Asclepias fascicularis Lewis S. Rose 1965-8-27 Rose 65092 San Mateo Emerald Lake, West of Redwood City, dry slopes. 122 Comment
  POM58697  Aster chilensis Edward L. Greene 1902-9-2 1550 San Mateo Crystal Springs Lake Comment
  RSA14211  Aster chilensis C. B. Wolf 1927-1-24 198 San Mateo Near Portola Comment
  POM87776  Aster radulinus L. R. Abrams 1902-9-28 3004 San Mateo New Grade Road- Portola Comment
  CAS-BOT-BC478066  Asteraceae Peter H. Raven 1957-9-1 11302 San Mateo Along Skyline Blvd. at Woodside Road Comment
  CAS-BOT-BC186759  Astragalus gambelianus Margaret A. Barry 1937-5-8 60 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC186765  Astragalus gambelianus H. A. Dutton 1900-3-25 s.n. San Mateo Woodside Comment
  SEINET948337  Astragalus gambelianus Lewis S. Rose 1956-1 56113 San Mateo Skyline Blvd., hills w. of San Mateo 183 Comment
  SD87780  Astragalus menziesii Frank W. Peirson 1925-9-13 6424 San Mateo Rockaway Beach, in detritus at the foot of cliffs at sea level Comment
  UC1128883  Astragalus nuttallii var. nuttallii G. E. Sindel 1935-7-26 300 San Mateo 2 1/2 mi nnw Pescadero; Santa Cruz Quad., nnw of Pescadero Comment
  SJSU15403  Astragalus pycnostachyus var. pycnostachyus Toni Corelli 2011-8-31 711 a San Mateo Pescadero State Beach and Marsh Natural Preserve, Butano Trail, between Butano Creek and Pescadero Creek Road 4 Comment
  UC13465  Astragalus pycnostachyus var. pycnostachyus J. W. Congdon 1897-8-11 San Mateo San Gregorio <?> Comment
  CAS-BOT-BC389701  Asyneuma prenanthoides Lorene Sigal 1969-7-1 s.n. San Mateo Butano Girl Scout Camp Comment
  CAS-BOT-BC68678  Athyrium filix-femina var. californicum Elizabeth McClintock; Baki Kasapligil; Walter Knight; Irja Knight 1967-7-18 s.n. San Mateo San Bruno Mountain - Near old quarry at mouth of Colma Canyon. Comment
  CAS-BOT-BC66140  Athyrium filix-femina var. cyclosorum D. E. Breedlove 1973-9-26 35558 San Mateo Pescadero Creek County Park 365 Comment
  UCD164088  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1977-11-24 9144 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  POM195304  Atriplex californica H. M. Hall 1922-5-17 11805 San Mateo Point Montara. Comment
  RSA181238  Atriplex californica John H. Thomas 1963-7-19 10192 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 mi. NW of Santa Cruz. Comment
  UCD97642  Atriplex prostrata H. C. Stutz 1995-10-3 9833 San Mateo Half Moon Bay. Comment
  SD110280  Avena barbata T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio Comment
  CAS-BOT-BC145957  Avena fatua John Thomas Howell 1956-4-25 31293 San Mateo Skyline Boulevard just north of Crystal Springs Lake dam. Comment
  JROH6  Azolla filiculoides Lawrence J. Winship 1974-11-16 16 San Mateo Jasper Ridge Biological Preserve, Stanford University. On and below Searsville Dam Comment
  CAS-BOT-BC68375  Azolla filiculoides George Oberlander 1951-3-30 1174 San Mateo San Francisco Watershed Reserve, San Mateo Creek Comment
  UC893653  Baccharis glutinosa Roxana Stinchfield 1915-10-14 262 San Mateo Santa Cruz Mountain Peninsula, San Francisquito Creek Comment
  CAS-BOT-BC99513  Baccharis pilularis L. R. Abrams 1914-10-14 5137 San Mateo Tunitas Comment
  CAS-BOT-BC99519  Baccharis pilularis John H. Thomas 1976-10-7 18397 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south 30 Comment
  CAS-BOT-BC99521  Baccharis pilularis Ned Cahill 1974-10-8 376 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC99531  Baccharis pilularis W. R. Dudley 1895-10-19 s.n. San Mateo Near San Francisquito Creek, toward Searsville Comment
  POM350441  Baccharis pilularis D. D. Keck 1931-10-5 1283 San Mateo 1 mile north of Salada Beach 91 Comment
  UC87151  Baccharis pilularis C. F. Baker 1902-10-1 1740 San Mateo Pillar Point Pacific Coast Comment
Read comments
Feb 2 2012
  RSA93165  Baccharis pilularis F. W. Peirson 1925-9-13 6425 San Mateo Rockaway beach. Comment
  JROH554  Baccharis pilularis subsp. consanguinea John Hunter Thomas 1988-10-17 24599 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5625923 Image available Baeria chrysostoma Unknown 1907-1 8465 San Mateo San Bruno Hills Comment
  CAS-BOT-BC16630  Barbarea orthoceras John H. Thomas 1965-4-29 10617 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  UCD165020  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7961 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCD97579  Bassia hyssopifolia Malcolm A. Nobs; S. Galen Smith 1949-8-27 1617 San Mateo E of Redwood City. Comment
  CAS-BOT-BC100193  Bellis perennis Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC75791  Berberis pinnata W. R. Dudley 1899-4-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek. Comment
  CAS-BOT-BC75869  Berberis pinnata W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Bank of ravine north of Seal Cove. Comment
  RSA254217  Berberis pinnata Robert A. Norris 1975-3-31 2294 San Mateo Near Guadalupe Parkway, Colma Canyon, San Bruno Mountans. Comment
  CAS-BOT-BC75867  Berberis pinnata W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. Near pass to Calera Valley north of the Montara Mountains. Comment
  JROH1321  Berberis pinnata subsp. pinnata H. L. Mason 1922-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; between "Zoo Shack" and sandstone caves Comment
  CDA34347  Beta vulgaris E. Finley 1990-10-16 s.n. San Mateo Shoreline Blvd., Mountain View. 0 Comment
  CAS-BOT-BC100317  Blennosperma nanum var. robustum Phillip C. Wheeler 1965-4-28 s.n. San Mateo Owl's Canyon Comment
  CAS-BOT-BC95340  Bowlesia incana Miss E. Cannon 1898-3-26 s.n. San Mateo South San Francisco Comment
  RSA119849  Bowlesia incana Hester R. Davis 1920-4-6 s.n. San Mateo Near San Francisquite Creek. Comment
  CDA36478  Brachypodium sylvaticum Ellen Gartside 2011-9-1 s.n. San Mateo Woodside; base of slope just above Grandview Drive. Comment
  CHSC91953  Brachypodium sylvaticum K. Melo 2003-12-1 1387519 San Mateo San Francisco Peninsula. Hwy 84 at Grandview Terrace and Schilling lake. Martin Creek drainage. Comment
  JROH5793  Brachypodium sylvaticum Nona Chiariello, Bill Gomez 2016-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Just east of path inside boundary fence along Portola Road south of caretaker's house. 105 Comment
  SEINET14395443  Brachypodium sylvaticum J. Beall 2003-12-4 San Mateo Santa Cruz Mountains, Woodside on Hwy 84 at Grandview Dr., about 1 mile from Skyline Road summit. 427 Comment
  UCD56896  Brachypodium sylvaticum K. Melo 2003-12-1 PDR 138751 9 San Mateo San Francisco Peninsula. Hwy. 84 at Grandview Terrace and Schilling Lake. Martin Creek drainage. Comment
  CAS-BOT-BC28048  Brassica fruticulosa Elizabeth McClintock; Paul Reeberg 1989-4-10 s.n. San Mateo Guadalupe Hills. Near horse corral. Comment
  UC2049865  Brassica nigra H. W. Johansen 1955-4-10 48 San Mateo Pescadero Creek Road, about 4 miles E of Pescadero Comment
  UCD114736  Brassica nigra Rimo Bacigalupi; J. H. Thomas and L. R. Heckard 1961-5-23 7714 San Mateo Along Alpine Road near site of abandoned Alpine School. 487 Comment
  CAS-BOT-BC145495  Briza maxima John R. Barth 1963-5-23 42 San Mateo Pebble Beach. Comment
  CAS-BOT-BC145323  Briza minor Margaret A. Barry 1937-5-15 125 San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC145327  Briza minor Copeland 1903-5-24 3257 San Mateo Above Crystal Springs Lake. Comment
  JROH4881  Briza minor John H. Thomas 1967-6-1 12957 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4887  Briza minor John Hunter Thomas 1983-4-5 21320 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the low-flow crossing Comment
  SEINET4183120 Image available Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  UC37548  Briza minor J. Burtt Davy 1895-4-20 1033 San Mateo Lake San Andreas Comment
  UCR143328  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos 30 Comment
  UCD57477  Briza minor H. A. Borthwick 1980-4-28 106 San Mateo Santa Cruz Mountain Peninsula. South of Cystal Lakes. Comment
  SEINET182863  Brodiaea capitata John Campbell 1925-3-27 San Mateo Burlingame Comment
  SEINET3884835  Brodiaea coronaria var. macropoda Lewis S. Rose 1970-4-8 70024 San Mateo Black Mountain W. of San Mateo.; 0 122 Comment
  JROH4585  Brodiaea elegans subsp. elegans John Hunter Thomas 1986-6-7 24088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10932626  Brodiaea hyacinthina Mcmurphy 1906-5-8 MCMURPHY s.n. 1906 San Mateo Plants of the Santa Cruz Mountain Peninsula. Road from Crystal Springs to Woodside. Comment
  UC1442900  Brodiaea terrestris subsp. terrestris Theodore F. Niehaus 1965-3-23 364 San Mateo e of Crystal Springs (100 yards e of San Mateo Juvenile Probation Center) Comment
  CAS-BOT-BC483178  Brodiaea terrestris subsp. terrestris H. L. Mason 1917-4-10 113 San Mateo Crystal Springs Lake Comment
  RSA594916  Bromus John H. Thomas 1962-4-24 9848 San Mateo San Bruno Mountan in northern part of county. 305 Comment
  SJSU7534  Bromus carinatus Lewis S. Rose 1963-4-27 63003 San Mateo Skyline Blvd W of San Mateo 91 Comment
Read comments
Oct 16 2013
  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-BC149016  Bromus carinatus var. carinatus Walter Knight; Irja Knight 1965-4-25 s.n. San Mateo San Bruno Mountain. Owl's Canyon. Comment
  JROH4892  Bromus carinatus var. carinatus John Hunter Thomas 1966-4-13 11558 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4895  Bromus carinatus var. carinatus John Hunter Thomas 1977-6-16 18740 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA31079  Bromus catharticus Robin Breckenridge, K. Filippini 2010-2-17 PDR# 1463753 San Mateo Pescadero: Bean Hollow Road (across from Bay Flower Company). 0 Comment
  CAS-BOT-BC155720  Bromus diandrus George Oberlander 1949-5-13 188 San Mateo San Francisco Watershed Reserve. San Andreas Valley. Comment
  CAS-BOT-BC155726  Bromus diandrus Javier Penalosa 1963-3-30 2765 a San Mateo San Bruno Mountains. Guadalupe Valley. 30 Comment
  JEPS128397  Bromus diandrus Adam C. Schneider 2013-5-17 141 San Mateo Crystal Springs Reservoir Comment
  JROH4913  Bromus hordeaceus John H. Thomas 1957-4-16 6654 A San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH4919  Bromus hordeaceus John H. Thomas 1966-4-24 11580 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4924  Bromus hordeaceus John Hunter Thomas 1984-4-24 23303 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4940  Bromus laevipes John Hunter Thomas 1992-5-25 25344 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC162310  Bromus madritensis John H. Thomas 1961-5-14 9384 A San Mateo Just north of dam on San Mateo Creek. 121 Comment
  JROH4946  Bromus madritensis subsp. madritensis John Rawlings 2013-4-14 1150 A San Mateo Jasper Ridge Biological Preserve, Stanford University; uphill from Trail 14 about 25 yards from the Rd E intersection 112 Comment
  JROH4958  Bromus madritensis subsp. rubens John Rawlings 2013-4-30 1181 B San Mateo Jasper Ridge Biological Preserve, Stanford University; along Road B near south boundary fence 78 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
  JROH4962  Bromus sterilis John Rawlings 2013-4-9 1149 San Mateo Jasper Ridge Biological Preserve, Stanford University. Verge of Rd L near Ranger Bath. 107 Comment
  CAS-BOT-BC185396  Bromus vulgaris W. R. Dudley 1894-7-28 s.n. San Mateo Santa Cruz Mountain Peninsula. Between Pescadero and La Honda. Comment
  JEPS26847  Bromus vulgaris Rimo Bacigalupi with J. H. Thomas and L. Heckard 1961-5-23 7710 San Mateo 1/4 mi w of crossing with Skyline Boulevard (along Alpine Road); Alpine Road 685 Comment
  CAS-BOT-BC233706  Buddleja davidii J. H. Thomas 1958-6-26 7288 San Mateo 3 miles north of Woodside along Canada Road 152 Comment
  UC1195194  Buddleja davidii John H. Thomas 1960-6-25 8794 San Mateo along or near a small creek running into Redwood Slough between El Camino Real and R.R. tracks Redwood City (near Maple St.) 7 Comment
  POM144327  Cakile edentula C. F. Baker 1902-10-1 1746 San Mateo Pillar Point. Comment
  CAS-BOT-BC36868  Cakile edentula var. edentula W. R. Dudley 1893-1-1 s.n. San Mateo Santa Cruz Peninsula. Beach near Spanishtown. Comment
  CAS-BOT-BC36872  Cakile edentula var. edentula W. R. Dudley 1897-10-10 s.n. San Mateo Near Pilar Point. Comment
  UC964761  Cakile maritima Herbert L. Mason 1944-3-17 San Mateo Moss Beach Comment
  CAS-BOT-BC36961  Cakile maritima var. maritima Robert Robertson 1954-5-1 126 San Mateo By roadside at back of beach near San Gregorio Creek. 6 Comment
  UC204153  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5033 San Mateo San Pedro Comment
  CAS-BOT-BC185031  Calamagrostis rubescens Lois Lampe 1939-7-8 s.n. San Mateo 6 miles from Woodside on Tunitas Creek Road. Comment
  RSA137260  Callitriche verna A. D. E. Elmer 1903-06 4279 San Mateo Lake San Andreas. Comment
  JROH4605  Calochortus albus John H. Thomas 1976-5-26 18152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA292629  Calochortus albus Lyman Benson 1930-5-12 2120 San Mateo San Mateo County: Lake Searsville. 152 Comment
  UCR101611  Calochortus albus George K. Helmkamp, E. A. Helmkamp 1998-5-16 3748 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  CAS-BOT-BC492205  Calochortus albus Le Roy Abrams 1901-5-1 1571 San Mateo Woodside Comment
  CAS-BOT-BC492209  Calochortus albus Elmer I. Applegate 1895-4-8 727 San Mateo Page Mill Creek, above Stanford University Comment
  CAS-BOT-BC492210  Calochortus albus Elmer I. Applegate 1895-4-8 727 a San Mateo San Francisquito Creek, near and above Stanford University Comment
  JROH4623  Calochortus argillosus John H. Thomas 1974-6-30 17458 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4641  Calochortus luteus John Hunter Thomas 1989-5-30 24753 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near dam Comment
  UC119756  Calochortus luteus Katharine Brandegee 1905-6-20 San Mateo near Lake Pilarcitos Comment
  CAS-BOT-BC491980  Calochortus luteus R. Hoffough 1929-5-25 214 San Mateo Sand Hill Road, Palo Alto Comment
  CAS-BOT-BC491986  Calochortus luteus Margaret A. Barry 1937-5-23 251 San Mateo Open woods on Coal Mine Ridge Comment
  IRVC9063  Calochortus luteus P. W. Rundel 1964-7-8 1362 San Mateo La Honda Road; 1.5 mi. N of Portola Road Santa Cruz Mtns 274 Comment
  POM196563  Calochortus luteus W. R. Dudley 1894-5-18 s.n. San Mateo Santa Cruz Peninsula: From Woodside to Crystal Springs Lake Comment
  CAS-BOT-BC493994  Calochortus tolmiei Josephine D. Randall 1907-4-27 225 San Mateo Kings Mt.; Santa Cruz Peninsula Comment
  CAS-BOT-BC270667  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo W of Redwood City, Emerald Lake 120 Comment
  JROH558  Calycadenia multiglandulosa John H. Thomas 1958-11-22 8077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH560  Calycadenia multiglandulosa Duncan M. Porter 1960-10-12 728 San Mateo Jasper Ridge Biological Preserve, Stanford University; SW edge of main meadow next to chaparral (near area C) Comment
  JROH569  Calycadenia multiglandulosa John H. Thomas 1975-5-26 17912 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH575  Calycadenia multiglandulosa John Hunter Thomas 1988-8-21 24563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA81618  Calycadenia multiglandulosa subsp. robusta James I. McMurphy 1909-6-7 s.n. San Mateo Jasper Ridge Comment
  UC306753  Calystegia purpurata A. D. E. Elmer June, 1903 4299 San Mateo Pescadero Comment
  CAS-BOT-BC224655  Calystegia purpurata subsp. purpurata Theo. C. Zschokke 1903-7-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Goat Ranch Road, Corte de [Corte] Madera Cr. Comment
  CAS-BOT-BC224659  Calystegia purpurata subsp. purpurata Ned Cahill 1974-5-13 278 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC224665  Calystegia purpurata subsp. purpurata Theo. C. Zschokke 1903-7-10 s.n. San Mateo Goat Ranch Road, Corte de [Corte] Madera Creek Comment
  CAS-BOT-BC224669  Calystegia purpurata subsp. purpurata Fred Hemphill 1973-4-22 734 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  UC465972  Calystegia soldanella Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  UC909351  Calystegia soldanella Ira L. Wiggins 1950-5-20 12351 San Mateo Pescadero Beach Pescadero Beach (upper margin beach) Comment
  CAS-BOT-BC436449  Calystegia subacaulis Ned Cahill 1974-4-29 194 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC436445  Calystegia subacaulis Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain, east of quarry Comment
  SD38400  Calystegia subacaulis Janet Turner 1933-5-30 3723 San Mateo Between Skyline and Half Moon Bay. Comment
  CAS-BOT-BC224345  Calystegia subacaulis subsp. subacaulis A. D. E. Elmer 1903-6-1 4826 San Mateo Crystal Springs Lake Comment
  POM49683  Camissonia ovata L. R. Abrams 1902-4-6 2316 San Mateo Portola Comment
  RSA18502  Campanula prenanthoides C. B. Wolf 1927-7-14 618 San Mateo Summit of Kings Mountain Rd. Comment
  SEINET10840319  Campanula prenanthoides Ira L. Wiggins 1929-7-4 Wiggins 3779 San Mateo Moist ravine 4 miles west of La Honda on hill road to Pescadero Beach Comment
  JROH1650  Cannabis sativa Ruth Porter 1982-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC37162  Capsella bursa-pastoris David D. Keck 1932-2-16 1378 San Mateo Portola. Comment
  JROH1475  Capsella bursa-pastoris John Hunter Thomas 1980-4-10 19877 San Mateo Jasper Ridge Biological Preserve, Stanford University; by dam Comment
  CHSC68130  Cardamine LeRoy E. Detling 1934-5-13 San Mateo Summit of La Honda Grade. Comment
  CAS-BOT-BC37675  Cardamine californica Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountains. Upper slope of mountain below radio station. Comment
  CAS-BOT-BC37676  Cardamine californica A. D. E. Elmer 1903-4-1 4468 San Mateo Portola. Comment
  HSC23887  Cardamine californica Mary Katherine Wicksten 1971-7-7 158 San Mateo Huddart Park, along road to family campground. Comment
  POM143341  Cardamine californica var. integrifolia A. D. E. Elmer 1903-04 4468 San Mateo Portola. Comment
  POM272922  Cardamine californica var. integrifolia Lyman Benson 1931-2-28 2614 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  CDA3669  Cardamine hirsuta Wm. Davis 1958-3-26 187 -58 San Mateo El Camino Real, San Mateo. 0 Comment
  SEINET12004998  Cardamine integrifolia G. A. McCallum 1933-1 s.n. San Mateo back of Stanford Campus Comment
  JROH1493  Cardamine oligosperma John H. Thomas 1968-5-17 14182 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1499  Cardamine oligosperma John Hunter Thomas 1983-4-5 21322 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  CAS-BOT-BC37982  Cardamine oligosperma Walter Knight; Irja Knight 1965-3-14 939 San Mateo San Bruno Mountain. Romanzoffia Ravine. Comment
  CAS-BOT-BC37990  Cardamine oligosperma W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Ravine above Pilar Point. Comment
  CDA6895  Carduus tenuiflorus T. C. Fuller 1960-4-2 4078 San Mateo West of Skyline Boulevard, 1.6 miles south of Half Moon Bay Road. 0 Comment
  UCSC006297  Carex Randall Morgan 2001-10-19 3778 San Mateo Half Moon Bay, Moist flat on RMC Lonestar property, upper San Vincente Ck watershed Comment
  SEINET10585498  Carex aquatilis Adolph D. E. Elmer Elmer 4428 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC19328  Carex barbarae J. H. Thomas 1958-8-1 7371 San Mateo Sand dunes about 0.5 mile north of mouth of Pescadero Creek. 0 Comment
  JROH5579  Carex barbarae John Rawlings 2013-7-2 1194 San Mateo Jasper Ridge Biological Preserve, Stanford University. In rocky bed of San Francisquito Creek, north side, opposite 2013 slide on Trail 1. 80 Comment
  CAS-BOT-BC19539  Carex bolanderi Peter Rubtzoff 1953-5-14 1339 San Mateo Pilarcitos Creek Canyon 1 to 2 miles downstreams from Pilarcitos Lake. Comment
  CAS-BOT-BC19544  Carex bolanderi C. F. Leitholt 1894-8-13 s.n. San Mateo Sant Cruz Mountain Peninsula. Devil's Canyon. Comment
  CAS-BOT-BC19545  Carex bolanderi W. R. Dudley 1899-5-14 s.n. San Mateo Sant Cruz Mountain Peninsula. Ravine west of Upper San Mateo Creek. Comment
  UC212817  Carex densa Kellogg and Brannan 1870-6-1 San Mateo San Gregorio Creek Comment
  UC823332  Carex densa John Thomas Howell 1938-5-1 13786 San Mateo near South San Francisco Comment
  OBI49274  Carex densa Lewis S. Rose 1939-4-14 39064 San Mateo South San Francisco 15 Comment
  CAS-BOT-BC19945  Carex exsiccata W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs. Comment
  JROH4339  Carex globosa John Hunter Thomas 1983-4-5 21317 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy draw along path to redwood area. Comment
  SJSU15225  Carex harfordii Toni Corelli 2012-6-28 801 San Mateo Pescadero State Beach, North Pond 3 Comment
  CAS-BOT-BC21809  Carex harfordii Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo Bayshore Blvd. Comment
  UCD163544  Carex harfordii Peter Rubtzoff; Barbara Deutsch, James Roof 1980-5-3 9437 San Mateo The Edward P. Lee Memorial Site, at the bottom of canyon, below the Nine Fern Rock. 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
  CAS-BOT-BC32499  Carex obnupta Henry Nicholas Bolander 1566 San Mateo Near Fort Point Comment
  POM193944  Carex serratodens Le Roy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  CAS-BOT-BC117649  Carex serratodens W. R. Dudley 1896-4-4 s.n. San Mateo Near Summit Springs, King's Mt. Comment
  SEINET7547018  Carex serratodens C. F. Baker 1902-1 811 San Mateo Crystal Springs Lake Comment
  POM248568  Carex subbracteata Alice Eastwood, John Thomas Howell, J. W. Stacey 1938-4-24 5256 San Mateo Pescadero. Comment
  UCD164096  Carex subbracteata Peter Rubtzoff 1978-5-18 9171 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC116815  Carex subbracteata var. subbracteata John Thomas Howell 1938-5-1 13776 San Mateo San Bruno Hills Comment
  CAS-BOT-BC116819  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-5-7 4326 San Mateo Visatacion Valley. Comment
  CAS-BOT-BC116832  Carex subbracteata var. subbracteata Adolph Daniel Edward Elmer 1903-6-1 4429 San Mateo Crystal Springs Lake Comment
  UC826092  Carex tumulicola Wilhelm N. Suksdorf 1913-6-30 377 San Mateo Crystal Springs Lake Comment
  UCD140941  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. 396 Comment
  CAS-BOT-BC227876  Carex tumulicola Elizabeth McClintock; Paul Reeberg 1989-6-1 s.n. San Mateo San Bruno Mountains. In ravine at southern tip of ridge separating Juncus and Tank Ravines, above Hillside Boulevard 114 Comment
  SEINET11942215  Carpobrotus chilensis M. T. Doutt 1931-1 179 San Mateo Ano Nuevo Pt Comment
  SJSU7602  Carpobrotus edulis E. P. Ryan 1965-4-25 San Mateo 1 mi N of Pigeon Point Lighthouse Comment
  CAS-BOT-BC249184  Castilleja affinis Ira L. Wiggins 1925-4-1 1649 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  CAS-BOT-BC249190  Castilleja affinis W. R. Dudley 1896-4-19 s.n. San Mateo Santa Cruz Peninsula. Above Alpine School House, Alpine Comment
  SEINET12288585  Castilleja affinis Cummings, McCallum 1933-1 s.n. San Mateo in Spring Valley Comment
  JEPS47425  Castilleja affinis subsp. affinis L. R. Heckard 1964-7-26 1423 San Mateo below old road from Skyline Blvd to Edgemar Comment
  JROH3934  Castilleja affinis subsp. affinis Joseph J. Schweitzer 1951-4-21 36 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH3942  Castilleja affinis subsp. affinis John H. Thomas 1974-4-25 17213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3945  Castilleja affinis subsp. affinis John Hunter Thomas 1978-4-20 19091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3953  Castilleja affinis subsp. affinis John Rawlings 2013-4-23 1172 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from Trail c. 180 Comment
  UC1036425  Castilleja affinis subsp. affinis G. B. Rossbach 1955-7-26 617 San Mateo near San Francisco County line (Route 1) Comment
  JEPS6959  Castilleja ambigua subsp. ambigua Peter H. Raven 1950-4-30 1964 San Mateo Montara 15 Comment
  UC306603  Castilleja ambigua subsp. ambigua A. D. E. Elmer May 1903 4800 San Mateo San Pedro Comment
  JROH3959  Castilleja attenuata John H. Thomas 1974-4-19 17159 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  JROH3960  Castilleja attenuata John H. Thomas 1974-4-25 17193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3966  Castilleja attenuata John Hunter Thomas 1982-4-23 20838 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area Comment
  SD234177  Castilleja densiflora Claude Bonang 1958-4-4 13 San Mateo Jasper Ridge. Meadow. Comment
  JEPS30077  Castilleja densiflora subsp. densiflora Lewis S. Rose 1961-4-5 61035 San Mateo San Bruno Mountains 365 Comment
  JROH3982  Castilleja densiflora subsp. densiflora John Hunter Thomas 1981-5-14 20585 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Lab Comment
  JROH3985  Castilleja densiflora subsp. densiflora John Hunter Thomas 1985-5-2 23581 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET13772767  Castilleja exserta A. A. Heller 1906-1 8381 San Mateo Near Ocean View, San Francisco. Comment
  POM283645  Castilleja foliolosa Lyman Benson 1935-3-10 6254 San Mateo La Honda Grade. Santa Cruz mtn range. Pacific Ocean watershed. 518 Comment
  CAS-BOT-BC243838  Castilleja latifolia Alice Eastwood; John Thomas Howell 1938-4-24 5252 San Mateo Tunitas Comment
  UC187825  Castilleja latifolia Katharine Brandegee 1890-5-20 San Mateo Searsville Comment
  OBI9362  Castilleja rubicundula Lewis S. Rose 1966-5-2 66034 San Mateo Emerald Lake, W of Redwood City 91 Comment
  JROH3991  Castilleja rubicundula subsp. lithospermoides Robert Robertson 1954-4-23 101 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH3997  Castilleja rubicundula subsp. lithospermoides D. E. Breedlove 1971-5-31 19360 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH4010  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1989-5-11 24729 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC886506  Castilleja rubicundula subsp. lithospermoides Alice Eastwood 1912-6-10 321 San Mateo Crystal Springs Comment
  JEPS103883  Castilleja subinclusa subsp. franciscana T. I. Chuang and F. M. Chuang 1991-7-1 7848 San Mateo 0.8 mile North of San Gregorio Beach Comment
  SJSU11466  Castilleja subinclusa subsp. franciscana R. D. Hennessey 1964-4-26 San Mateo near outlet Pilarcitos Cr into ocean Comment
  JEPS19720  Castilleja wightii Peter H. Raven 1957-6-24 10964 San Mateo just s Linda Mar Comment
  JEPS29419  Castilleja wightii L. R. Heckard 1961-7-16 1267 San Mateo near San Bruno Mt. summit; San Bruno Mt. 304 Comment
  JEPS3674  Castilleja wightii C. R. Bell 1951-3-25 922 San Mateo e of Daly City (maritime slopes of Colma Canyon); Colma Canyon Comment
  JEPS47428  Castilleja wightii L. R. Heckard 1964-7-26 1426 San Mateo 0.4 mi up Lobitos Creek road from Verde Road on old highway (Lobitos Creek road, above Lobitos Creek valley) Comment
  JEPS85725  Castilleja wightii L. R. Heckard 1968-7-23 2067 San Mateo along road from Daly City up Colma Canyon Comment
  JEPS85728  Castilleja wightii L. R. Heckard 1964-6-24 1396 San Mateo near San Bruno Mt. summit (n of transmitting stations); San Bruno Mt. 304 Comment
  UC1537582  Castilleja wightii Gordon H. True Jr. 1936-6-14 510 San Mateo 1 mi from Skyline Blvd. (on Salada Beach Road) 182 Comment
  UC198269  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore Railway Comment
  JEPS6867  Castilleja wightii Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4548 San Mateo e side Sierra Morena (new La Honda grade) 591 Comment
  POM199579  Castilleja wightii Katherine Brandegee 1917-7-22 s.n. San Mateo Mussel Rock Station, Ocean Shore RR Comment
  RSA18294  Castilleja wightii Carl B. Wolf 1927-6-21 423 San Mateo East slope of Kings Mt. Comment
  RSA294161  Castilleja wightii Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4229 San Mateo Alongside footpath on brushy slope about 50 ft. above a marshy lagoon border, N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  RSA505397  Castilleja wightii R. C. Bacigalupi, G. Thomas Robbins 1955-8-4 5451 San Mateo Along Skyline Blvd. (Calif. Highway No. 5) just west of Crystal Springs Lake (south lake); at a point 6.2 miles north of the junction with Kings Mtn. (not the La Honda) road. 396 Comment
  SEINET8212805  Castilleja wightii A. D. E. Elmer 1903-1 4761 San Mateo San Pedro. Comment
  JROH1526  Caulanthus lasiophyllus John H. Thomas 1968-5-22 14456 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC40398  Caulanthus lasiophyllus Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Adjacent to Guadalupe Road. Comment
  POM136316  Ceanothus cuneatus A. D. E. Elmer 1903-03 4578 San Mateo Portola Comment
  JROH3519  Ceanothus cuneatus var. cuneatus Anne Constant 1955-4-8 4 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3524  Ceanothus cuneatus var. cuneatus John H. Thomas 1975-5-2 17848 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG32289  Ceanothus cuneatus var. dubius L. S. Rose 1964-3-23 64011 San Mateo Emerald Lake, W of Redwood City 121 Comment
  CAS-BOT-BC64333  Ceanothus griseus J. Clausen 1941-7-1 1873 San Mateo Summit of Montara Mountain. 274 Comment
  SBBG116527  Ceanothus integerrimus D. H. Wilken with E. Painter 2003-5-10 16067 San Mateo Skyline Blvd (St Hwy 35), near head of La Honda Crk, 0.8 linear km NE of Allen Lookout, Santa Cruz Mtns 610 Comment
  CAS-BOT-BC51594  Ceanothus oliganthus var. sorediatus A. D. E. Elmer 1903-5-1 4479 San Mateo Portola Comment
  CAS-BOT-BC51595  Ceanothus oliganthus var. sorediatus Robert Robertson 1954-5-1 104 San Mateo by road 2 miles S.W. La Honda Junction 365 Comment
  CAS-BOT-BC51596  Ceanothus oliganthus var. sorediatus H. A. Borthwick 1920-4-21 74 San Mateo Strawberry Bend, Corte Madera Cr. Comment
  POM222807  Ceanothus oliganthus var. sorediatus S. S. Berry 1909-3-31 s.n. San Mateo Hill slope near the Hermit. 152 Comment
  CAS-BOT-BC63457  Ceanothus palmeri W. R. Dudley 1893-5-30 s.n. San Mateo Peak of Loma Prieta. Comment
  CAS-BOT-BC51241  Ceanothus papillosus J. I. McMurphy 1906-5-20 13 San Mateo Santa Cruz Peninsula - King's Mt. Santa Cruz Mts. 457 Comment
  SBBG28520  Ceanothus papillosus D. D. Keck 1932-5-11 1774 San Mateo E side of Kings Mtn on Kings Mtn Rd 500 Comment
  CAS-BOT-BC52285  Ceanothus thyrsiflorus C. F. B. 1902-4-12 511 San Mateo La Honda Comment
  CAS-BOT-BC52286  Ceanothus thyrsiflorus Brandegee 1890-4-1 19 San Mateo San Gregorio Comment
  CAS-BOT-BC52300  Ceanothus thyrsiflorus W. R. Dudley 1900-4-15 s.n. San Mateo Above Crystal Springs and Half Moon Bay road Comment
  CAS-BOT-BC52312  Ceanothus thyrsiflorus J. I. McMurphy 1906-5-8 12 San Mateo Woodside, Santa Cruz Mts. 121 Comment
  RSA153472  Ceanothus thyrsiflorus John H. Thomas 1961-5-7 9295 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC1073367  Ceanothus thyrsiflorus George B. Rossbach 1955-3-26 342 San Mateo San Pedro Point, northwest end Montara Mountains Comment
  UC1219870  Ceanothus thyrsiflorus John H. Thomas 1961-5-7 9295 San Mateo San Bruno Mountain in northern part of county. 304 Comment
  UC567045  Ceanothus thyrsiflorus N. K. Carlson 1935-7-5 60 San Mateo three mi s Bellvale; Santa Cruz Quad. 640 Comment
  SEINET12210806  Ceanothus thyrsiflorus W. Knight, Knight, I. 1982-1 4662 San Mateo Tilden Botanic Garden, Berkeley Comment
  POM351492  Centaurea calcitrapa Edith A. Purer 1933-8-13 18173 San Mateo Near Belmont Comment
  RSA444732  Centaurea calcitrapa Lyman Benson 1934-7-29 6111 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  CAS-BOT-BC274585  Centaurea calcitrapa G. H. Mallory 1919-7-21 s.n. San Mateo Santa Cruz Mountain Peninsula. Near 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
  RSA0115047  Centaurea calcitrapa Lyman Benson 1945-7-29 11838 San Mateo Bayshore Highway at San Carlos. 3 Comment
  SEINET11860702  Centaurea calcitrapa E. A. Purer 1933-8-13 5423 San Mateo Santa Clara Valley, near Belmont Comment
  CAS-BOT-BC277124  Centaurea melitensis J. H. Thomas 1958-6-11 7224 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  CAS-BOT-BC277121  Centaurea melitensis Margaret A. Barry 1937-6-22 167 San Mateo Exposed top of Coal Mine Ridge Comment
  RSA130992  Centaurea melitensis C. F. Leitholt 1894-8-13 s.n. San Mateo Devil's Canyon, Block Mountain. Comment
  RSA181235  Centaurium davyi John H. Thomas 1964-6-19 10431 San Mateo 0.9 mile south of Tunitas Creek near Coast Highway. 61 Comment
  SEINET7096716  Centaurium davyi A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. NAD27, 37? deg. 24' 29ao, -122?_ 13' 33ao (converted to WGS84 decimal degrees) UTM Zone 10, 568517mE, 4140222mN. Comment
  CAS-BOT-BC272817  Centromadia parryi subsp. parryi David D. Keck 1931-10-5 1291 San Mateo Salada Beach Comment
  CAS-BOT-BC279320  Centromadia pungens subsp. pungens Elsie M. Zeile 1921-7-30 1087 San Mateo Salada Comment
  UC1080532  Centromadia pungens subsp. pungens Sherwin Cariquist 1957-7-5 411 San Mateo 4 mi s of San Carlos; Highway 101 (Bayshore Highway) Comment
  CAS-BOT-BC388390  Cerastium glomeratum Fred Hemphill 1973-4-15 670 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1688  Cerastium glomeratum John H. Thomas 1957-4-16 6649 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH151  Ceratophyllum demersum John Hunter Thomas 1981-7-12 20712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC400166  Ceratophyllum demersum W. R. Dudley 1909-11-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Hallidie Ranch, Portola Valley Comment
  JROH3628  Cercocarpus betuloides var. betuloides John Hunter Thomas 1987-5-19 24297 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
  CAS-BOT-BC473026  Chenopodium rubrum var. humile W. R. Dudley 1906-10-12 14 San Mateo Santa Cruz Mountain Peninsula. Pond [14 - either cln no or pond no.] Comment
  IRVC9050  Chlorogalum pomeridianum P. W. Rundel 1963-7-7 1144 San Mateo San Francisco Bay drainage area; Kings Mtn Road; woodside. Santa Cruz Mountains 305 Comment
  JROH4647  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1974-6-27 17454 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing below Searsville Dam Comment
  JROH3222  Chorizanthe diffusa Le Roy Abrams 1901-5-20 1653 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA159419  Chrysanthemum coronarium John H. Thomas 1961-5-7 9245 San Mateo Colma, near intersection of El Camino Real and F Street 46 Comment
  RSA54048  Chrysanthemum leucanthemum J. T. Howell 1949-7-4 25356 San Mateo Skyline Blvd., north of Millbrae Comment
  CAS-BOT-BC36401  Chrysolepis chrysophylla W. R. Dudley 1893-5-27 s.n. San Mateo Road from Woodside to Kings Mt. Comment
  JEPS78655  Chrysolepis chrysophylla Edward Lee 1936-1-26 1727 San Mateo 4.5 mi out Woodside (Kings Mountain Road, e side of Cahill Ridge); Cahill Ridge Comment
  POM270420  Chrysolepis chrysophylla Lyman Benson 1932-7-25 3953 San Mateo Kings Mt. above Woodside; San Francisquito Cr. watershed. 305 Comment
  RSA476618  Chrysolepis chrysophylla L. H. Jones 1909-3-13 s.n. San Mateo On King's Mountain Road, Stanford University. 762 Comment
Read comments
Sep 22 2011
  JEPS78658  Chrysolepis chrysophylla var. minor Edward Lee 1936-1-26 1742 San Mateo between Purisima Creek and Tunitas Creek (near summit) 609 Comment
  JEPS85230  Cicendia quadrangularis Roy E. Buck and James A. West 1985-4-29 524 San Mateo 1.9 air km ene Franklin Point (just n of Whitehouse Canyon rd, ca 0.8 km ne of Whitehouse Canyon Rd junction with Calif Hwy 1, Cascade Ranch) Comment
  JROH2585  Cicendia quadrangularis John H. Thomas 1968-4-19 14301 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285234  Cichorium intybus Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo San Bruno Mountains. In Guadalupe Valley Comment
  CAS-BOT-BC277882  Cirsium brevistylum Fred Hemphill 1973-5-14 825 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC277887  Cirsium brevistylum David D. Keck 1934-7-7 2932 San Mateo Kings Mountain, west of summit 579 Comment
  UCR70775  Cirsium brevistylum Mrs. E. C. Sutliffe 1933-7-26 s.n. San Mateo Lobitos Canyon 451 Comment
  CDA20522  Cirsium brevistylum E. Finley 2005-4-21 PDR 1365078 San Mateo San Francisco Bay Area; Bean Hollow Rd, Pescadero. 0 Comment
  RSA0070579  Cirsium brevistylum A. D. E. Elmer 1903-06 4277 San Mateo Crystal Springs Lake. Comment
  CDA1230  Cirsium fontinale var. fontinale T. C. Fuller 1970-5-13 19532 -B San Mateo East side of I-280, 100 yds. s. of junction Hwy 92 w. to Half Moon Bay. E slope above Crystal Springs Reservoir. Comment
  POM261287  Cirsium fontinale var. fontinale J. T. Howell 1939-6-16 14746 San Mateo Crystal Springs Lake Comment
  UC1416532  Cirsium fontinale var. fontinale George E. Pilz 1972-5-22 789 San Mateo e side of Crystal Springs Reservoir, Interstate 280 cuts through colony Crystal Springs Reservoir 121 Comment
  RSA0008390  Cirsium fontinale var. fontinale J. T. Howell 1939-6-16 14743 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC285671  Cirsium occidentale var. occidentale A. A. Heller 1906-6-8 8379 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  JROH630  Cirsium occidentale var. occidentale John Hunter Thomas 1979-6-12 19590 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam near "old" low-flow crossing Comment
  RSA176529  Cirsium occidentale var. venustum John H. Thomas 1963-6-23 10169 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
  CAS-BOT-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-BC280521  Cirsium quercetorum Alice Eastwood; John Thomas Howell 1938-6-26 6078 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280524  Cirsium quercetorum Alice Eastwood 1912-6-10 333 San Mateo Crystal Springs 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
  CAS-BOT-BC280513  Cirsium quercetorum Walter Knight; Irja Knight 1964-4-25 588 San Mateo San Bruno Mountain. Ridge near Nike base Comment
  JROH639  Cirsium vulgare John H. Thomas 1974-8-3 17499 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11834687  Cirsium vulgare E. H. Graham 1931-1 6927 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  RSA791714  Clarkia Robert F. Thorne, P. Everett 1965-8-1 35076 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  CAS-BOT-BC160924  Clarkia amoena subsp. amoena E. M. Zeile 1921-7-30 s.n. San Mateo Near Mussel Rock Comment
  SJSU15228  Clarkia amoena subsp. whitneyi Toni Corelli 2012-7-12 804 San Mateo Wavecrest, north of Redondo Road, west of Highway 1 in Half Moon Bay 24 Comment
  CAS-BOT-BC172089  Clarkia davyi Peter H. Raven 1959-6-1 14455 San Mateo Pigeon Point Comment
  JEPS90013  Clarkia purpurea subsp. purpurea Dean W. Taylor 1988-4-29 9589 San Mateo San Bruno Mountain, along Guadalupe Canyon Parkway, in the right-of-way of easternmost set of PG&E high-voltage powerlines crossing the mountain San Bruno Mountain; Santa Cruz Mountains, San Bruno Mountain 371 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-BC163967  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1894-7-30 s.n. San Mateo Near La Honda Comment
  CAS-BOT-BC163963  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1903-6-6 s.n. San Mateo Alpine Road, Black Mt., Santa Cruz Range Comment
  CAS-BOT-BC163971  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1900-5-19 s.n. San Mateo One mile West of summit of La Honda Road Comment
  CAS-BOT-BC163974  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1903-5-31 s.n. San Mateo Alpine Road, Black Mt., Santa Cruz Range Comment
  POM271755  Clarkia purpurea subsp. quadrivulnera Lyman Benson 1931-4-26 2758 San Mateo Behind Stanford University. Santa Cruz mtn range, Corte Madera Creek. 213 Comment
  SFV16946  Clarkia purpurea subsp. viminea J. N. Hogue 1980-9-1 81 .1 San Mateo Santa Cruz Mountains Near La Honda. Comment
  CAS-BOT-BC165170  Clarkia rubicunda L. R. Abrams 1907-8-26 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC165176  Clarkia rubicunda H. A. Dutton 1900-4-17 s.n. San Mateo Woodside Comment
  JEPS43647  Clarkia rubicunda J. Burtt Davy 1893-6-17 767 San Mateo Belmont Comment
  JROH3015  Clarkia rubicunda Rachel Hays 1972-7-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18380  Clarkia rubicunda Carl B. Wolf 1927-7-1 528 San Mateo Above Emerald Lake, back of Redwood City. Comment
  SBBG5002  Clarkia rubicunda H. and M. Dearing 1951-8-17 6945 San Mateo Pigeon Point, N of Santa Cruz Comment
  UC1279951  Clarkia rubicunda Peter H. Raven 1957-6-30 11012 San Mateo near bridge Tunitas Creek (along State Highway 1) Comment
  UC422840  Clarkia rubicunda W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  UC762860  Clarkia rubicunda R. F. Hoover 1941-5-20 5108 San Mateo Redwood City hills Comment
  OBI12094  Clarkia rubicunda Lewis S. Rose 1957-7-6 57117 San Mateo Skyline blvd. W of San Mateo 183 Comment
  RSA15204  Clarkia rubicunda Carl B. Wolf 1926-10-19 86 San Mateo West of La Honda; Santa Cruz Mountains Comment
  UC1279935  Clarkia rubicunda Peter H. Raven 1952-7-4 11044 San Mateo 2.7 mi sw State Highway 5 (State Highway 9) Comment
  UCD104827  Clarkia rubicunda H. F. Copeland 1929-7-4 s.n. San Mateo La Honda Grade. Comment
  CAS-BOT-BC439288  Claytonia exigua subsp. exigua George Oberlander 1950-2-1 445 San Mateo San Francisco Watershed Reserve. Near south boundary Comment
  JROH3329  Claytonia exigua subsp. exigua L. R. Abrams 1901-1-27 1101 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5709  Claytonia parviflora subsp. parviflora John Rawlings 2015-3-15 1348 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 8 110 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
  CAS-BOT-BC439986  Claytonia perfoliata subsp. mexicana John M. Miller 1977-3-23 590 San Mateo Purisimo Canyon; Hwy. 1, 4 mi. E of Hwy. 1 on Purisimo Canyon Road. Comment
  POM270613  Clematis Arthur L. Cohen 1935-4-21 611 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  JROH3407  Clematis lasiantha John H. Thomas 1959-4-5 7666 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral at the western end of the ridge Comment
  RSA18269  Clematis lasiantha Carl B. Wolf 1927-6-27 454 San Mateo 2 miles back of Stanford University. Comment
  SEINET12099146  Clematis lasiantha J. H. Thomas 1959-1 7666 San Mateo Jasper Ridge, 5 mi SW of Palo Alto 152 Comment
  JROH2873  Clinopodium douglasii John H. Thomas 1970-1-1 15499 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2881  Clinopodium douglasii John Hunter Thomas 1986-6-7 24087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD27837  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 2 miles from Pescadero, on Alpine Creek. Comment
  UC1236523  Clintonia andrewsiana J. H. Thomas 1954-6-11 4269 San Mateo 1.5 mi w of La Honda (along San Gregorio Creek); San Gregorio Creek 106 Comment
  RSA15294  Clintonia andrewsiana Carl B. Wolf 1927-4-3 263 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  SEINET12044200  Clintonia andrewsiana D. D. Keck 1932-1 1797 San Mateo 1 mi W of Skyline Blvd. on La Honda Rd, Santa Cruz Mts Comment
  UCD123583  Collinsia heterophylla W. A. Harvey; J. M. Tucker 1948-6-29 1702 San Mateo beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC240935  Collinsia multicolor Reed C. Rollins 1942-4-30 3019 San Mateo San Bruno Hills, 1 mile south of Daly City Comment
  UC1736305  Collinsia multicolor Dean W. Taylor 1994-5-10 14276 San Mateo San Mateo Creek drainage; along Crystal Springs Road 0.3 mi East of junction of Tartan Trail Comment
  JROH4016  Collinsia sparsiflora var. collina Herbert Dengler 1963-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; lower edge of serp. by "up" road S.W. of Searsville Rocks Comment
  CHSC55725  Collomia heterophylla Steven Triano 1988-5-24 260 San Mateo Along Old La Honda Road ca 0.6 mi s of its jct. with Portola Road and 3.8 mi s of Woodside. 176 Comment
  HSC23940  Collomia heterophylla Mary Katherine Wicksten 1971-7-12 166 San Mateo Huddart Park; beside Archery Trail above Archery Flat Comment
  RSA119754  Collomia heterophylla W. R. Dudley 1903-5-2 s.n. San Mateo Lower Pescadero Creek, Spring Valley co. property Comment
  RSA0104570  Convolvulus arvensis Sandra M. Namoff 70 San Mateo Half Moon Bay, near Francis Beach State Park, on Kelly Ave SW of intersection with Hwy 1, easement. 18 Comment
  JROH1848  Convolvulus arvensis John Hunter Thomas 1978-5-12 19200 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1850  Convolvulus arvensis John Hunter Thomas 1983-6-29 22694 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC286206  Conyza canadensis John H. Thomas 1961-8-27 9694 San Mateo Colma. Near intersection of El Camino Real and F Street 45 Comment
  RSA120503  Corallorhiza maculata S. S. Tillett, I. Sternback 1956-6-24 533 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  RSA17972  Cordylanthus pilosus subsp. pilosus Carl B. Wolf 1927-7-28 707 San Mateo Los Trancos Creek, 2 mi back of Stanford University. Comment
  JEPS23960  Cordylanthus rigidus subsp. rigidus John H. Thomas 1959-8-22 8075 San Mateo Jasper Ridge, 5 mi sw Palo Alto; Jasper Ridge 152 Comment
  JEPS15884  Corethrogyne filaginifolia Edward Lee Greene 1886-6-22 San Mateo Crystal Springs Comment
  POM287560  Cornus californica Lyman Benson 1928-4-12 57 San Mateo Standord University. Santa Cruz. Watershed San Francisquito Creek. 46 Comment
Read comments
Oct 24 2014
  POM287561  Cornus californica Arthur L. Cohen 1935-2-22 525 San Mateo King's Mountain Road; Mt. Range: Santa Cruz; Watershed: San Francisco Bay. 152 Comment
  JROH1863  Cornus glabrata D. E. Breedlove 1971-5-31 19372 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC210358  Cornus sericea Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Base of Quarry 2 Comment
  JROH5906  Cornus sericea subsp. sericea M. Ray 1982-4-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; swamp trail about 1 km from Mapache Gate Comment
  CAS-BOT-BC190044  Cortaderia jubata J. H. Thomas 1958-9-15 7472 San Mateo 0.4 mile north of dam on San Mateo Creek along Skyline Boulevard. 91 Comment
  CDA18373  Cortaderia selloana G. D. Barbe 1978-9-26 2441 San Mateo Skylawn Memorial Park; drive from Hwy 92 into the park. 716 Comment
  CAS-BOT-BC180279  Corylus cornuta subsp. californica Elizabeth McClintock 1972-3-26 s.n. San Mateo Middle Buckeye Canyon. 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
  POM217105  Corylus cornuta var. californica D. D. Keck 1932-2-12 1362 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake. 305 Comment
  RSA119710  Corylus cornuta var. californica James I. McMurphy 1902-05 s.n. San Mateo Kings Mountain. Comment
  RSA119711  Corylus cornuta var. californica I. L. Wiggins 1929-3-23 3373 San Mateo Road to Mud Lake, near Stanford University Comment
  SD27760  Corylus cornuta var. californica Carl B. Wolf 1927-2-26 223 San Mateo La Honda Grade 305 Comment
  CAS-BOT-BC453502  Cotoneaster lacteus Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo Guadalups Parkway; San Bruno Mountains Comment
  CAS-BOT-BC453503  Cotoneaster lacteus Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo Colma Canyon; San Bruno Mountains Comment
  JROH3633  Cotoneaster pannosus D. E. Breedlove 1971-5-31 19365 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC287305  Cotula australis Walter & Irja Knight 1965-2-28 874 San Mateo San Bruno Mt. Ridge 0.25 mile E parking lot Comment
  RSA187304  Cotula coronopifolia John H. Thomas 1963-7-19 10193 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 mi. NW of Santa Cruz. Comment
  CAS-BOT-BC291475  Cotula coronopifolia David D. Keck 1932-3-24 1403 San Mateo Redwood City at border of San Francisco Bay Comment
  RSA291922  Crassula aquatica Robert A. Norris 1981-11-7 4276 San Mateo Pond near Ano Nuevo Point. Comment
  CAS-BOT-BC427830  Crassula connata John H. Thomas 1958-2-15 6991 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 182 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
  JROH1894  Crassula tillaea Toni Corelli 2008-3-10 344 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Lab in bare areas along old road cut 113 Comment
  CAS-BOT-BC290924  Crepis vesicaria John Thomas Howell 1956-5-1 31316 San Mateo Just s. of Woodside on road to Searsville Comment
  UC19183  Crocanthemum scoparium var. scoparium J. Burtt Davy Jun 21 1893-Jun 23 1893 1157 San Mateo Pilarcitos Lake and Canyon Comment
  JROH1368  Cryptantha micromeres John Rawlings 2009-5-7 1069 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 in chaparral. 158 Comment
  JROH1371  Cryptantha microstachys Herbert Dengler 1960-5-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; firetrail on top of Nolan Ridge (the ridge N.E. of Corte Madera Cr. in chaparral -- about 200 yds W. of Westridge border) Comment
  JROH1377  Cryptantha microstachys John Hunter Thomas 1978-4-22 19102 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1383  Cryptantha microstachys John Rawlings 2012-5-25 1107 San Mateo Jasper Ridge Biological Preserve, Stanford University. Up-slope along Trail b. 142 Comment
  RSA704404  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 424 San Mateo CA., San Mateo County., Pescadero County Park, on Botano Ridge, ca. 5-5.5 miles East of Dearborn Park Road, 375 Comment
  CAS-BOT-BC80652  Cupressus goveniana Harry A. Dutton 1949-9-1 s.n. San Mateo Butano Ridge between Pescadero and Butano Creeks, Santa Cruz Mountains. Comment
  CAS-BOT-BC80791  Cupressus macrocarpa John Thomas Howell 1957-5-8 32236 San Mateo Skyline Blvd. w. of San Bruno. Comment
  CAS-BOT-BC224413  Cuscuta californica Josephine D. Randall 1907-7-23 107 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  CDA39984  Cuscuta subinclusa W. Davis 1959-8-2 s.n. San Mateo Redwood City. 0 Comment
  UCD34111  Cyclospermum leptophyllum Beecher Crampton 1976-7-31 9404 San Mateo Redwood City. Comment
  CAS-BOT-BC287338  Cynara cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just S of Main St, Redwood City Comment
  RSA120949  Cynara scolymus J. T. Howell 1956-11-14 31961 San Mateo Bayshore Highway just south of Main Street, Redwood City. Comment
  JROH5003  Cynodon dactylon John H. Thomas 1973-6-10 16819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23980  Cynoglossum grande Mary Katherine Wicksten 1971-7-2 149 San Mateo Huddart Park, Miwok Flat Comment
  JROH1389  Cynoglossum grande Le Roy Abrams 1902-4-6 2317 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  RSA130416  Cynoglossum grande Josephine Randall 1908-2-16 s.n. San Mateo Corte de Madera Canyon near Alpine Road. Comment
  UCD119163  Cynoglossum grande Leslie Fenster 1964-3-22 22 San Mateo Crystal Spring Lake drainage area, Sawyer Ridge Road, 4 miles from Skyline. 152 Comment
  UCD166157  Cynoglossum grande Jack Major; M. Forde and S. Bamberg 1962-4-3 740 San Mateo Along road near Scott Creek. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD163784  Cyperus eragrostis Peter Rubtzoff 1988-6-9 9924 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along Old Guadalupe Road in the northwestern part of the 'Saddle' area, east of Saddle Trail junction. Comment
  CAS-BOT-BC136517  Cypripedium montanum Miss. F. Patterson 1911-5-6 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  RSA78584  Cytisus scoparius P. A. Munz 1953-2-1 18273 San Mateo North of Scott Valley. Comment
  UCSB11177  Cytisus scoparius Connelly, Dianne 1962-4-21 San Mateo Corner of Milbrae and Sky Line Boulevard; 12 miles southeast of San Francisco 121 Comment
  JROH5025  Dactylis glomerata John Hunter Thomas 1987-4-30 24215 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5030  Dactylis glomerata John Hunter Thomas 1988-5-25 24491 San Mateo Jasper Ridge Biological Preserve, Stanford University. SLAC corridor. Comment
  CAS-BOT-BC192227  Danthonia californica Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Crocker Hills Comment
  JROH5036  Danthonia californica John H. Thomas 1967-6-1 12947 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM347040  Danthonia californica var. americana Lyman Benson 1930-4-26 2071 San Mateo Stanford University. 122 Comment
  RSA580827  Danthonia californica var. americana D. D. Keck 1932-5-6 1479 San Mateo Open hillside just west of Millbrae Highlands. 50 Comment
  JROH1903  Datisca glomerata John H. Thomas 1961-6-14 9543 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  POM133419  Daucus pusillus E. B. Copeland 1903-6-8 3337 San Mateo Montara Point. Comment
Read comments
Jan 23 2011
  SFV3974  Deinandra corymbosa J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1, almost 10 miles north of Santa Cruz County line Open roadside. 30 Comment
  CAS-BOT-BC299209  Deinandra corymbosa subsp. corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach 16 Comment
  CAS-BOT-BC299205  Deinandra corymbosa subsp. corymbosa W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  SJSU8504  Deinandra pentactis B. W. Grushkowitz 1969-9-27 San Mateo Cloverdale Road near Gazos Creek Road c. 2 miles E of coastal shore line, E of Pigeon Point Comment
  CAS-BOT-BC292118  Delairea odorata John H. Thomas 1967-2-9 12404 San Mateo Montara. Near 3rd St. and Farallones Ave. Comment
  UC511171  Delphinium californicum Lyman Benson 1930-5-12 2127 San Mateo Lake Searsville San Francisco Bay watershed, Santa Cruz Mt. Range, Stanford 152 Comment
  UCD95637  Delphinium californicum Lewis S. Rose 1965-5-3 65058 San Mateo San Bruno Mountain, Colma Canyon. 60 Comment
  JROH3434  Delphinium californicum subsp. californicum John H. Thomas 1973-6-10 16811 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS6236  Delphinium hesperium subsp. hesperium J. Burtt Davy 1893-6-17 805 San Mateo Belmont Comment
  CAS-BOT-BC116328  Delphinium parryi subsp. parryi W. R. Dudley 1894-7-7 S. N. San Mateo Under trees, head of Corte Madera. Comment
  POM270660  Delphinium patens Lyman Benson 1928-4-21 595 San Mateo Stanford University, Mt. Range: Santa Cruz; River: San Francisquito Creek. 91 Comment
  JROH3453  Delphinium patens subsp. patens John H. Thomas 1975-4-5 17711 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3460  Delphinium patens subsp. patens John Hunter Thomas 1986-4-10 23953 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area below dam Comment
  CAS-BOT-BC116533  Delphinium patens subsp. patens P. H. Arnaud 1941-4-21 s.n. San Mateo Hills - back of Hesler farm, Redwood City Comment
  SJSU3145  Delphinium variegatum W. A. Dout 1957-5-10 20 San Mateo Emerald L district of Redwood City Comment
  CAS-BOT-BC7897  Delphinium variegatum subsp. variegatum W. R. Dudley 1896-4-4 s.n. San Mateo near Crystal Springs Comment
  JEPS127792  Delphinium variegatum subsp. variegatum Adam C. Schneider with C. Matt Guilliams 2013-4-7 63 San Mateo 1+ m away from dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH3466  Delphinium variegatum subsp. variegatum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC203054  Delphinium variegatum subsp. variegatum A. D. E. Elmer May 1903 4796 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC192598  Deschampsia cespitosa subsp. holciformis L. R. Abrams 1927-6-15 s.n. San Mateo Spring Valley Lakes Comment
  JROH5051  Deschampsia danthonioides John H. Thomas 1983-6-29 22718 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5057  Deschampsia danthonioides John Rawlings 2007-5-2 1019 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just off (south side) Road F at edge of chaparral in vernally wet area. 167 Comment
  SEINET176086 Image available Deschampsia danthonioides D. D. Keck 1932-4-29 1448 San Mateo Redwood City; fields near the salt marshes Comment
  CAS-BOT-BC201910  Deschampsia elongata W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge, near Black Mt. Comment
  UCD63320  Deschampsia elongata S. S. Tillett; I. Sternback 1956-6-25 544 San Mateo On Middleton property s. of road to Portola State Park, just before entrance. 396 Comment
  CLARK-A1528-683  Dicentra formosa William Horn, Jr. 1963-4-13 630413 #1 San Mateo Hillsborough 30 Comment
  POM148896  Dicentra formosa subsp. formosa C. F. Baker 1902-3-22 344 San Mateo Crystal Springs Lake Comment
  POM87987  Dicentra formosa subsp. formosa L. R. Abrams 1902-4-13 2336 San Mateo Crystal Spring. Comment
  POM169473  Dichelostemma capitatum subsp. capitatum C. F. Baker 1903-4-6 1891 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  RSA3928  Dichelostemma capitatum subsp. capitatum Harry A. Dutton 1900-3-25 s.n. San Mateo The Santa Cruz Peninsula Comment
  JROH1909  Dipsacus sativus John H. Thomas 1969-6-4 15108 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC121859  Dirca occidentalis Lewis S. Rose 1933-6-9 33222 San Mateo San Andreas Lake Comment
  CAS-BOT-BC121865  Dirca occidentalis Quinn P. Sinnott; Kathy A. Sinnott 1975-3-1 611 San Mateo Along road about 1 miles N of Stone Dam. San Francisco Watershed at Crystal Springs. 243 Comment
  CAS-BOT-BC121869  Dirca occidentalis Dennis E. Breedlove 1964-2-7 5916 San Mateo In San Andreas Canyon below the dam. Comment
  JROH4217  Dirca occidentalis Carol Zabel 1990-4-15 40 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
  RSA392566  Dirca occidentalis L. S. Rose 1933-3-2 33002 San Mateo San Andreas Lake Comment
  SBBG33466  Dirca occidentalis A. D. E. Elmer -Mar-1903 4123 San Mateo Alpine Road Comment
  CDA39312  Disporum hookeri T. C. Fuller 1960-4-2 4079 San Mateo La Honda Rd., 1 mile north of La Honda. 0 Comment
  POM169497  Disporum hookeri var. hookeri C. F. Baker 1903-04 5052 San Mateo Crystal Springs Lake. Comment
  POM277215  Disporum hookeri var. hookeri Lyman Benson 1937-8-15 8490 San Mateo Upper San Francisquito Creek, Mt. Range: Santa Cruz; Watershed: San Francisco Bay. 244 Comment
  POM169800  Disporum smithii A. D. E. Elmer 1903-05 4697 San Mateo Butano Creek Comment
  SEINET11973366  Dodecatheon clevelandii Unknown 1930-1 7436 San Mateo Jasper Ridge Comment
  JROH3381  Dodecatheon hendersonii Le Roy Abrams 1902-4-5 2311 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3387  Dodecatheon hendersonii John Hunter Thomas 1981-4-5 20286 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  UC311084  Dodecatheon hendersonii A. D. E. Elmer April, 1903 4560 San Mateo Woodside Comment
  RSA15250  Dodecatheon hendersonii Carl B. Wolf 1927-2-19 211 San Mateo Skyline Blvd. above Spring Valley Lakes, near where Belmont Road crosses Comment
  JROH1508  Draba verna John Hunter Thomas 1981-4-4 20256 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam in road Comment
  JROH5685  Draba verna John Rawlings 2015-2-15 1279 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Trail 7 at Hillside Lab 150 Comment
  UC1964685  Drymocallis glandulosa Roger Raiche 1983-8-18 30634 San Mateo Montara Mt. Comment
  CAS-BOT-BC159530  Drymocallis glandulosa var. glandulosa J. Clausen 1941-7-1 1872 San Mateo Summit of Montara Mountain 274 Comment
  CAS-BOT-BC159502  Drymocallis glandulosa var. glandulosa Elizabeth McClintock 1965-3-28 s.n. San Mateo From burned over area in Devil's Arroyo - San Bruno Mountain Comment
  RSA152261  Drymocallis glandulosa var. wrangelliana I. L. Wiggins 1925-04 1662 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  CAS-BOT-BC67895  Dryopteris arguta Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Buckeye Canyon Comment
  CHSC39802  Dryopteris arguta Maxey-Jones 1928-5-21 San Mateo In La Honda Redwoods. Comment
Read comments
Jul 7 2010
  JROH29  Dryopteris arguta Lawrence J. Winship 1974-11-2 9 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
  CAS-BOT-BC67894  Dryopteris arguta G. Edelbrock 1975-2-8 003 San Mateo SF watershed - Along roadcut at Stone Dam below Pilarcitos Lake 121 Comment
  CAS-BOT-BC67896  Dryopteris arguta Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Quarry 3 Comment
  RSA11000  Dryopteris arguta C. B. Wolf 1928-3-14 1537 San Mateo La Honda grade in the Santa Cruz Mountains 152 Comment
  SD38414  Dudleya caespitosa Edith A. Purer 1933-7-27 5383 San Mateo 2.0 miles south of Pigeon Point. Comment
  CAS-BOT-BC428363  Dudleya farinosa L. R. Abrams 1909-8-2 4273 San Mateo Santa Cruz Peninsula. Pebble Beach hotel, Pescadero Comment
  JROH5093  Echinochloa crus-galli John Hunter Thomas 1982-7-2 21059 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  JROH5722  Echinochloa crus-galli John Rawlings 2015-9-22 1641 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  CAS-BOT-BC203880  Elymus X hansenii Elizabeth McClintock; Paul Reeberg 1989-5-30 s.n. San Mateo San Bruno Mountains. On east-facing slope below Ridge Trail; Juncus Ravine 182 Comment
  JROH5116  Elymus X hansenii Toni Corelli 2005-6-1 290 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 before Trail 9. 112 Comment
  CAS-BOT-BC203681  Elymus glaucus subsp. glaucus John H. Thomas 1961-5-14 9366 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve 152 Comment
  CAS-BOT-BC203684  Elymus glaucus subsp. glaucus Ned Cahill 1974-5-18 301 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH5110  Elymus glaucus subsp. glaucus John Hunter Thomas 1988-5-16 24467 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing. Comment
  SJSU16011  Elymus glaucus subsp. virescens John Rawlings, Toni Corelli 2016-5-27 1845 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  UCSC007753  Elymus mollis subsp. mollis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UCD164330  Elymus repens Peter Rubtzoff; Roman Gankin 1976-6-30 8703 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  CAS-BOT-BC204302  Elymus trachycaulus subsp. trachycaulus L. R. A. 1902-5-11 2452 San Mateo Crystal Springs Comment
  CAS-BOT-BC204303  Elymus trachycaulus subsp. trachycaulus L. R. A. 1902-5-11 2452 San Mateo Crystal Springs Comment
  POM87686  Elymus trachycaulus subsp. trachycaulus Le Roy Abrams 1902-5-11 2452 San Mateo Crystal Springs. Comment
  UC1537613  Epilobium brachycarpum Gordon H. True 1937-7-23 804 San Mateo along Skyline-Salada Beach Rd 60 Comment
  CAS-BOT-BC166140  Epilobium canum subsp. canum Lewis S. Rose 1965-9-4 65099 San Mateo Skyline Blvd. & Half Moon Bay Rd, Cahill Ridge 243 Comment
  UCD105431  Epilobium canum subsp. canum Lewis S. Rose 1965-9-4 65099 San Mateo Skyline Blvd. and Half Moon Bay Road, Cahill Ridge. 243 Comment
  POM312602  Epilobium ciliatum subsp. watsonii Malcolm A. Nobs, S. Galen Smith 1949-8-26 1585 San Mateo About 1 mile south of Half Moon Bay. Comment
  UCD105934  Epilobium ciliatum subsp. watsonii Malcolm A. Nobs; S. Galen Smith 1949-8-26 1585 San Mateo About 1 mile south of Half Moon Bay. Comment
  JROH3069  Epilobium densiflorum H. J. Dengler 1972-8-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC205082  Equisetum A. D. E. Elmer May, 1903 4602 San Mateo Cemeteries, San Mateo Co. Comment
  CAS-BOT-BC57604  Equisetum telmateia Ira L. Wiggins 1931-3-15 5103 San Mateo between Skyline Blvd. and La Honda Comment
  JROH68  Equisetum telmateia subsp. braunii Lawrence J. Winship 1974-11-2 3 San Mateo Jasper Ridge Biological Preserve, Stanford University. 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
  MACF014295  Equisetum telmateia subsp. braunii E. Jordan 1969-1-4 12 A- San Mateo Low open area amid redwood forest. East side coast range 609 Comment
  SJSU1752  Equisetum telmateia subsp. braunii H. B. Johnston 1956-3-28 79 San Mateo Tunitas Creek, Tunitas Road, c.3 mi NE of Tunitas Comment
  POM214347  Equisetum telmateia var. braunii I. L. Wiggins 1931-3-15 5103 San Mateo Between Skyline Blvd and La Honda. Comment
  SJSU15446  Eragrostis curvula John Rawlings 2009-5-1 1048 B San Mateo This ornamental grass appeared along a short stretch of San Hill Rd. at the entrance to the Horse Park at Woodside. 119 Comment
Read comments
Feb 18 2015
  JROH5143  Eragrostis pectinacea var. pectinacea W. Lennihan 1980-11-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake (formed by Corte Madera Creek). Comment
  SEINET11859536  Erechtites argutus E. A. Purer 1933-8-13 5422 San Mateo near Belmont Comment
  POM356837  Erechtites glomeratus E. A. Purer 1933-8-13 5422 San Mateo Along roadside, near Belmont. Comment
  CAS-BOT-BC299888  Erechtites glomeratus Delzie Demaree 1933-8-13 10505 San Mateo Santa Clara Valley, Belmont Comment
  RSA191936  Erechtites glomeratus R. F. Thorne, Percy C. Everett 1963-6-9 32212 San Mateo On top of San Bruno Mountain. 335 Comment
  JROH3144  Eriastrum abramsii John Pelton 1958-6-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC286882  Ericameria ericoides David D. Keck 1931-10-5 1286 San Mateo 1 mile north of Salada Beach Comment
  CAS-BOT-BC286883  Ericameria ericoides Elizabeth McClintock 1966-9-29 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  SD40117  Ericameria ericoides subsp. ericoides Edith A. Purer 1933-7-27 5375 San Mateo Two miles south of Pigeon Point. Comment
  JROH648  Erigeron canadensis John H. Thomas 1964-11-15 10524 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road at edge of Searsville Lake Comment
  CHSC57066  Erigeron glaucus Steven Triano 1988-5-24 215 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  CAS-BOT-BC300064  Erigeron philadelphicus Philip Wheeler 1965-7-7 s.n. San Mateo San Bruno Mountain. April Brook Comment
  CAS-BOT-BC300246  Erigeron reductus var. angustatus John Thomas Howell 1930-11-9 s.n. San Mateo Crystal Springs Lake Comment
  HSC24048  Eriodictyon californicum Mary Katherine Wicksten 1971-6-18 6 San Mateo Huddart Park by park office Comment
  JROH2721  Eriodictyon californicum John H. Thomas 1971-5-30 15969 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2727  Eriodictyon californicum Raymond R. White 1974-6-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; area H Comment
  LA205645  Eriodictyon californicum Lewis S. Rose; 1941-7-2 41288 San Mateo Kings Mountain 480.0 Comment
  CAS-BOT-BC216244  Eriodictyon californicum Josephine D. Randall 1907-7-24 166 San Mateo Road to Crystal Springs Lake, Santa Cruz Peninsula 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
  UC912833  Eriogonum gracile Lewis S. Rose 1941-9-2 41432 San Mateo w Redwood City; Emerald Lake 91 Comment
  JEPS111098  Eriogonum gracile Zoe Ellis Chandik 1992-7-14 92 -5 San Mateo on east side of Hwy 280, 0.3 miles north of Woodside Road Comment
  CAS-BOT-BC251988  Eriogonum latifolium C. F. Baker 1903-6-30 3359 San Mateo Pilarcitos Comment
  POM145464  Eriogonum latifolium J. B. Feudge 1923-8-19 97 San Mateo Ano Nuevo Point 6 Comment
  RSA165299  Eriogonum latifolium C. F. Baker 1902-10-1 1748 San Mateo Pillar Point. Comment
  RSA18467  Eriogonum latifolium Carl B. Wolf 1927-6-29 541 San Mateo South of Pebble Beach near Pescadero. Comment
  RSA393632  Eriogonum latifolium E. S. Spalding 1924-6-28 s.n. San Mateo Moss Beach. Comment
  SBBG25112  Eriogonum latifolium D. Myrick 1966-6-11 1450 San Mateo Pigeon Point on Hwy 1 S of San Francisco Comment
  SD214602  Eriogonum latifolium Edith A. Purer 1933-7-27 5379 San Mateo Sand dunes, two miles south of Pigeon Point Comment
  SD88537  Eriogonum latifolium Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  UC176458  Eriogonum latifolium Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  UC849505  Eriogonum latifolium Mrs. E. C. Phipps July 1922 San Mateo Tunitas Creek Comment
  SEINET10479506  Eriogonum latifolium Mary Susan Taylor 1978-8-30 Taylor 1870 San Mateo Comment
  SEINET11938062  Eriogonum latifolium M. T. Doutt 1931-1 602 San Mateo near Portola, along ocean Comment
  CAS-BOT-BC264773  Eriogonum luteolum Paul R. Hichborn 1920-6-1 284 San Mateo Back of Redwood City, Santa Cruz Mountain Peninsula Comment
  JROH3225  Eriogonum luteolum var. luteolum Duncan M. Porter 1960-10-12 725 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow at crest of Ridge above Webb Ranch (area H). Comment
  JEPS83064  Eriogonum nudum Roy E. Buck, Randall A. Morgan, James A. West 1983-7-23 449 San Mateo 1.4 km w San Andreas Dam (at n end of Sawyer Ridge, on sw-facing slope above last curve in gravel ridge road before intersection above San Andreas Dam); San Francisco Watershed Reserve, Sawyer Ridge 312 Comment
  CAS-BOT-BC269005  Eriogonum nudum var. auriculatum Lewis S. Rose 1964-9-9 64074 San Mateo Emerald Lake, w. of Redwood City 243 Comment
  SBBG32420  Eriogonum nudum var. auriculatum L. S. Rose 1964-9-9 67074 San Mateo Emerald Lake, W of Redwood City 243 Comment
  CAS-BOT-BC268998  Eriogonum nudum var. auriculatum Phillip C. Wheeler 1965-6-21 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  UCD100531  Eriogonum nudum var. auriculatum Marilyn Ivey 1973-5-30 67 San Mateo Farm Hill Blvd., 2 miles east of Canada College. Comment
  JROH698  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1969-5-28 15076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH706  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1977-6-16 18776 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH720  Eriophyllum lanatum var. arachnoideum John H. Thomas 1962-7-15 9912 San Mateo Jasper Ridge Biological Preserve, Stanford University; near northern end of ridge Comment
  RSA116760  Eriophyllum lanatum var. arachnoideum C. F. Leitholt 1893-5-27 s.n. San Mateo Near Summit Springs, Kings Mountain; Santa Cruz Mountain Peninsula Comment
  RSA116761  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1893-5-27 s.n. San Mateo Foot of Summit Springs Road, near Woodside. Santa Cruz Mountain Peninsula Comment
  RSA463086  Eriophyllum lanatum var. arachnoideum Lyman Benson 1930-5-3 2113 San Mateo Above Woodside, Mt. Range: Santa Cruz. 366 Comment
  UC483493  Eriophyllum staechadifolium Ira L. Wiggins 1929-7-4 3793 San Mateo sea bluffs at Pescadero Beach Comment
  CAS-BOT-BC301970  Eriophyllum staechadifolium John H. Thomas 1975-1-12 17672 San Mateo Thornton Beach State Park in NW part of county Comment
  RSA302653  Eriophyllum staechadifolium Jim Shevock 1970-11-25 551 San Mateo Along Hwy 1 9 Comment
  SEINET11850780  Eriophyllum staechadifolium var. artemisiaefolium E. A. Purer 1933-1 5395 San Mateo 2 mi S of Pigeon Point Comment
  CHSC56969  Eriophyllum staechadifolium var. staechadifolium Steven Triano 1988-5-24 189 San Mateo Ca 100 ft s of Gazos Creek and 2.4 mi s of Pigeon Point Light Station. 6 Comment
  RSA328357  Erodium botrys Robert A. Norris 1984-5-9 4731 San Mateo Olivet Memorial Park throughway, Colma. Comment
  RSA391777  Erodium botrys D. D. Keck 1932-4-18 1432 San Mateo Mills Field Airport, San Francisco Bay. 2 Comment
  JROH2605  Erodium cicutarium John H. Thomas 1977-4-19 18536 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD88370  Eryngium armatum Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay. Comment
  UC566783  Eryngium armatum Herbert L. Mason 1927-7-29 3982 San Mateo Pigeon Point Comment
  JROH236  Eryngium jepsonii John H. Thomas 1964-7-9 10443 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC54822  Erysimum franciscanum A. D. E. Elmer 1903-5-1 4477 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC54841  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-6-4 914 San Mateo Above southeast shore of Crystal Springs Lake, soutwest base Pulgas Ridge. 91 Comment
  CAS-BOT-BC54862  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-6-4 915 San Mateo West slope Buriburi Ridge, between Crystal Springs and San Andreas Lakes. 121 Comment
  CAS-BOT-BC54878  Erysimum franciscanum Peter H. Raven 1950-4-16 1781 San Mateo San Bruno Mountains. Colma Canyon. 182 Comment
  JEPS53557  Erysimum franciscanum William S. Cooper 1925-5-28 16 San Mateo Salada Comment
  RSA101861  Erysimum franciscanum G. B. Rossbach 1938-4-3 807 San Mateo San Bruno Hills Comment
  RSA157747  Erysimum franciscanum John H. Thomas 1961-5-7 9316 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC1034761  Erysimum franciscanum G. B. Rossbach 1955-3 572 San Mateo high seaward slope 2 mi s San Francisco line (3 mi n of Sharp Park (Salada)) Comment
  RSA0001945  Erysimum franciscanum G. B. Rossbach 1955-3-26 572 San Mateo High seaward slope 2 mi. S of San Francisco line & 3 mi. N of Sharp Peak (Salada). Comment
  SD234189  Erythranthe guttata Virginia Pinkus Ryder 1964-2-21 78 San Mateo Near Davenport. 3 Comment
  CAS-BOT-BC403531  Eschscholzia californica Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC403534  Eschscholzia californica Le Roy Abrams 1902-5-11 2453 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC403553  Eschscholzia californica Javier Penalosa 1963-3-30 2706 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  JROH3094  Eschscholzia californica John H. Thomas 1967-6-1 12963 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC10015  Eschscholzia californica J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  UC204262  Eschscholzia californica A. D. E. Elmer June, 1903 4680 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC403542  Eschscholzia californica H. A. Dutton 1900-2-27 s.n. San Mateo Santa Cruz Peninsula. Woodside 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
  POM272325  Eschscholzia californica subsp. californica Arthur L. Cohen 1935-4-21 627 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  POM202650  Euonymus occidentalis Alice Eastwood 1933-5-31 18843 San Mateo Butano Canyon. Comment
  JROH1796  Euonymus occidentalis var. occidentalis Volney Rattan May s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Searsville Comment
  JROH1804  Euonymus occidentalis var. occidentalis John Rawlings, Paul Heiple 2007-4-11 1026 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 10 meters inside Preserve boundary near its SW corner 115 Comment
  UCD142397  Euphorbia helioscopia Walter Russell 1949-9-11 594 San Mateo Millbrae. Beside Highway 101. Comment
  CDA19875  Euphorbia oblongata D. Pendleton 2002-5-24 PDR P 120140 San Mateo San Francisco Bay Area; N side of Westride Dr, 50 m E of Bolivar Ln, Portola Valley. 0 Comment
  JROH1975  Euphorbia spathulata John H. Thomas 1974-4-4 17083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306651  Eurybia radulina A. D. E. Elmer Jul 1903 4973 San Mateo Portola Comment
  JROH5149  Festuca arundinacea John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5168  Festuca arundinacea W. Lennihan 1990-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By marsh (also by lab). 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
  JEPS128400  Festuca bromoides Adam C. Schneider 2013-5-17 132 San Mateo Crystal Springs Reservoir. Comment
  JROH5177  Festuca californica John H. Thomas 1967-5-12 12866 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278351  Festuca californica subsp. californica L. R. A. 1902-5-11 2461 San Mateo Crystal Springs Comment
  CAS-BOT-BC278354  Festuca californica subsp. californica W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. W. of San Andreas Reservoir Comment
  CAS-BOT-BC278474  Festuca idahoensis L. R. A. 1902-5-11 2450 San Mateo Crystal Springs Comment
  CAS-BOT-BC278480  Festuca idahoensis Elizabeth McClintock; Paul Reeberg 1989-5-16 s.n. San Mateo San Bruno Mountain. On ridge east of East Powerline, on south side of Southeast Ridge 274 Comment
  JROH5478  Festuca microstachys Duncan M. Porter 1960-4-18 642 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch. Comment
  JROH5496  Festuca myuros John H. Thomas 1967-5-12 12890 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5505  Festuca myuros John Rawlings 2013-4-16 1132 San Mateo Jasper Ridge Biological Preserve, Stanford University. In and along Trail 2 extension south of the Dengler Transect after a short uphill section where the trail passes a boulder on the uphill side. 84 Comment
  CAS-BOT-BC278860  Festuca occidentalis W. R. Dudley 1898-7-1 s.n. San Mateo Pescadero Creek Comment
  SJSU15424  Foeniculum vulgare Toni Corelli 2011-8-31 712 San Mateo Pescadero State Beach and Marsh Natural Preserve, along Butano Trail 18 Comment
  CAS-BOT-BC166812  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
  CDA34004  Fragaria californica D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .151 San Mateo Santa Cruz Mountains.; Skyline Blvd, ~ 5 miles W of Los Altos. Comment
  RSA152236  Fragaria californica I. L. Wiggins 1925-04 1647 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  CHSC1548  Fragaria chiloensis G. Herrington 1930-5-1 San Mateo Moss Beach. Comment
  RSA499458  Fragaria chiloensis E. A. Purer 1933-7-27 5386 San Mateo Two miles south of Pigeon Point. Comment
  CAS-BOT-BC437029  Fragaria chiloensis A. D. E. Elmer 1903-4-1 4799 San Mateo San Pedro Comment
  CAS-BOT-BC437031  Fragaria chiloensis W. R. Dudley 1895-2-9 s.n. San Mateo Near Arroyo de los Frijoles Pescadero, Santa Cruz Peninsula Comment
  UC466551  Fragaria chiloensis Franklin P. Nutting Apr 1895 San Mateo Comment
  JROH3667  Fragaria vesca John Hunter Thomas 1981-4-21 20461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1334693  Fragaria vesca R. S. Woglum 1935-5-25 1158 San Mateo Skyline Drive s to Big Basin Redwoods; San Francisco Area Comment
  HSC23974  Fragaria vesca Mary Katherine Wicksten 1971-7-8 160 San Mateo Huddart Park, Madrone Area Comment
  CAS-BOT-BC437062  Fragaria vesca subsp. bracteata L. S. Rose 1927-3-25 s.n. San Mateo Woodside Comment
  CAS-BOT-BC52683  Frangula californica subsp. californica Walter Knight; Irja Knight 1965-5-15 1108 San Mateo Pig Ranch Ravine Comment
  CAS-BOT-BC52689  Frangula californica subsp. californica Elizabeth McClintock; Phillip Wheeler 1967-6-11 s.n. San Mateo North facing slope to south of new Guadalupe Parkway to west of where it meets Radio Road Comment
  JROH3574  Frangula californica subsp. tomentella John Hunter Thomas 1981-2-14 20213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC18511  Frangula purshiana J. Burtt Davy 1895-4-21 1064 San Mateo Pilarcitos Creek Comment
Read comments
Jul 18 2008
  CAS-BOT-BC211602  Frankenia salina John Hunter Thomas 1949-10-16 1142 San Mateo Along ocean bluff, just north of outlet of San Gregorio Creek 60 Comment
  CAS-BOT-BC211607  Frankenia salina Phillip C. Wheeler 1965-8-14 s.n. San Mateo Brisbane Lagoon, San Bruno Mountain Comment
  RSA391413  Frankenia salina E. A. Purer 1933-8-13 s.n. San Mateo Belmont Comment
  CAS-BOT-BC130135  Fritillaria affinis B. 1903-3-1 5047 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC130139  Fritillaria affinis J. H. Thomas 1949-4-14 268 San Mateo [King's] Kings Mt. Road Comment
  JROH4681  Fritillaria affinis John H. Thomas 1961-5-5 9214 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below Searsville Dam 76 Comment
  CAS-BOT-BC130117  Fritillaria affinis Volney Rattan 1802-1-1 s.n. San Mateo Cushings Comment
  CAS-BOT-BC130121  Fritillaria affinis George Oberlander 1949-4-17 81 San Mateo Pilarcitos Canyon Comment
  JROH4687  Fritillaria affinis John Hunter Thomas 1985-4-27 23538 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM196569  Fritillaria affinis Roxana S. Ferris 1921-3-21 2121 San Mateo Ano Nuevo Point Comment
  JEPS4954  Fritillaria biflora Inez Smith 1915-3-15 San Mateo Hillsborough, El Nido Hillsborough; , El Nido Comment
  SD39121  Fritillaria liliacea Marie Cummings 1933-4-11 7 San Mateo Spring Valley Lake. Comment
  CAS-BOT-BC130377  Fritillaria liliacea Gladys L. Smith; Marion Gallagher 1978-5-1 4805 San Mateo Spring Valley Watershed along Old Skyline, exactly opposite statue of Father Serra on 280 Comment
  RSA15248  Fritillaria liliacea Carl B. Wolf 1927-2-19 s.n. San Mateo Skyline Blvd. above Spring Valley Lakes, near where Belmont Road crosses 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
  UCR248782  Fumaria capreolata Peter Rubtzoff 1988-5-12 9921 San Mateo San Bruno Mountain, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; NW part of the area, near old Guadalupe Road between Bog Trail and Saddle Trail junction 213 Comment
  UCD165021  Galium aparine Peter Rubtzoff; Roman Gankin 1975-5-21 7966 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCSC007756  Galium aparine Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UCD166156  Galium californicum Jack Major; M. Forde and S. Bamberg 1962-4-3 741 a San Mateo Above Coastways Ranch on Finney Creek. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CDA6674  Galium divaricatum J. T. Howell 1978-7-18 53188 San Mateo McClellan residence, 1356 Bernal Avenue, Burlingame. 0 Comment
  JROH3794  Galium murale John H. Thomas 1971-4-21 15765 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130817  Galium nuttallii Josephine Randall 1907-6-8 352 San Mateo Portola Valley. Santa Cruz Peninsula. Comment
  RSA195643  Galium nuttallii John H. Thomas 1950-3-19 1301 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
Read comments
Aug 8 2020
  UC496159  Galium porrigens var. porrigens W. F. Wight 1900-1-28 San Mateo trail to Bukhorn Ranch above Prestons (old La Honda Rd.) Comment
  HSC23986  Galium triflorum Mary Katherine Wicksten 1971-6-17 53 San Mateo Huddart Park on Chickadee Trail Comment
  CAS-BOT-BC303468  Gamochaeta ustulata Paul F. Covel 1936-4-24 272 San Mateo Skyline Blvd Comment
  CAS-BOT-BC194559  Garrya elliptica A. D. E. Elmer 1903-2-1 4469 San Mateo Portola Comment
  CAS-BOT-BC194565  Garrya elliptica E. H. Richardson 1906-2-1 s.n. San Mateo Black Mountain Road Comment
  JROH2542  Garrya elliptica Herbert Dengler 1975-5-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; below and uphill from spring, S.W. Jasper Ridge Comment
  SBBG34145  Garrya elliptica R. E. Dengler 1960-4-10 9 San Mateo Jasper Ridge, Stanford Biological Reserve 160 Comment
  SEINET4041731  Garrya elliptica D. Demaree 1930-1 7312 San Mateo Los Trancos Woods. Comment
  UC306760  Garrya elliptica A. D. E. Elmer Feb 1903 4469 San Mateo Portola Comment
  CAS-BOT-BC278661  Gastridium phleoides C. F. Leitholt 1894-7-30 s.n. San Mateo La Honda 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
  JROH5183  Gastridium phleoides John H. Thomas 1967-5-31 12920 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA135780  Gastridium phleoides C. F. Leitholt 1894-7-30 s.n. San Mateo La Honda. Comment
  CAS-BOT-BC59638  Gaultheria shallon W. R. Dudley 1894-3-24 s.n. San Mateo Lower part of Pescadero Creek. Comment
  CAS-BOT-BC59640  Gaultheria shallon Herbert L. Mason 1921-7-1 s.n. San Mateo Pescadero Cr. Comment
  CAS-BOT-BC526238  Gazania Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo San Bruno Mountains; near Picnic Area Comment
  JROH1999  Genista monspessulana John H. Thomas 1960-4-22 8594 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5860  Genista monspessulana Toni Corelli 2004-3-24 267 San Mateo Jasper Ridge Biological Preserve, Stanford University. along main gate road, northwest of road 121 Comment
  SFV8455  Genista monspessulana M. L. Linvill 1972-5-16 9 San Mateo Woodside. Mountain Home Road, 0.2 miles from Mountain Wood Lane. Comment
  JROH2623  Geranium molle John H. Thomas 1955-5-6 5005 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA128903  Gilia achilleifolia subsp. multicaulis Harry A. Dutton 1900-4-19 A. San Mateo Santa Cruz Peninsula Comment
  JROH5682  Gilia clivorum John Rawlings 2015-3-15 1354 San Mateo Jasper Ridge Biological Preserve, Stanford University; sepentine prairie on ridge top south of a shallow drainage 195 Comment
  UC535968  Gilia clivorum Elmer I. Applegate 1895-5-11 343 San Mateo near Searsville; near Searsville Comment
  CAS-BOT-BC303678  Glebionis coronaria Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo San Bruno Mts. Along Guadalupe Canyon Parkway, near school in Lower Colma Canyon Comment
  SD40453  Glebionis segetum Edith A. Purer 1933-5-31 3658 San Mateo Moss Beach Comment
  SEINET8687951 Image available Glebionis segetum K. Thorne, J. Chandler 1986-7-25 4941 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach Comment
  CAS-BOT-BC303849  Gnaphalium John H. Thomas 1961-5-7 9286 San Mateo San Bruno Mt in N part of county 396 Comment
  RSA17964  Gnaphalium beneolens C. B. Wolf 1927-8-13 715 San Mateo Woodside Comment
  POM55189  Gnaphalium californicum A. D. E. Elmer 1903-06 4291 San Mateo Crystal Springs Lake. Comment
  SEINET11849355  Gnaphalium chilense M. T. Doutt 1931-1 424 San Mateo Portola Comment
  CAS-BOT-BC307440  Gnaphalium palustre W. R. Dudley 1909-10-31 s.n. San Mateo Searsville Lake, Santa Cruz Mountain Peninsula Comment
  SEINET11843442  Grindelia X paludosa E. A. Purer 1933-1 5414 San Mateo near Baden Station 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
  RSA40139  Grindelia camporum L. S. Rose 1948-11-29 48243 San Mateo Mills Field. Comment
  UCD132477  Grindelia camporum John Thomas Howell 1964-12-6 41032 San Mateo Vacant lot near Southern Pacific Railroad station, Millbrae. Comment
  SD12573  Grindelia camporum Edith A. Purer 1933-8-4 5414 San Mateo Flat area near Baden Station Comment
  CAS-BOT-BC304522  Grindelia hirsutula David D. Keck 1934-7-7 294307 San Mateo Pigeon Point Comment
  CAS-BOT-BC304527  Grindelia hirsutula John H. Thomas 1961-8-27 9707 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC304545  Grindelia hirsutula Phillip C. Wheeler 1965-7-8 s.n. San Mateo San Bruno Mountain. Along road on ridge Comment
  CAS-BOT-BC304555  Grindelia hirsutula Phillip C. Wheeler 1965-7-8 s.n. San Mateo San Bruno Mountain. Along road on ridge Comment
  CAS-BOT-BC304559  Grindelia hirsutula Alice Eastwood 1912-6-10 322 San Mateo Crystal Springs Comment
  CAS-BOT-BC304565  Grindelia hirsutula R. E. Frenkel 1963-12-7 320 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.4 mile north of the junction with Spring Valley Ridge Road Comment
  JEPS17019  Grindelia hirsutula Rimo Bacigalupi with J. R. Sweeney, G. Bacigalupi Jr., and C. Fenneman 1954-8-3 4738 San Mateo rocky road berm directly above Point San Pedro Comment
  POM288780  Grindelia hirsutula Lyman Benson 1934-7-4 6101 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  SJSU15767  Grindelia hirsutula Toni Corelli 2011-9-14 722 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica 53 Comment
  UC1118556  Grindelia hirsutula N. K. Carlson 1935-6-29 105 San Mateo 1 mi s Pescadero; Santa Cruz Quad. Comment
  UC1599358  Grindelia hirsutula L. R. Heckard 1961-7-16 1264 San Mateo across road from transmitting station KQED (near summit of mt.); San Bruno Mt. 335 Comment
  UC897085  Grindelia hirsutula J. T. Howell 1932-10-21 San Mateo Pigeon Point Comment
  JROH817  Grindelia hirsutula John H. Thomas 1973-6-15 16848 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM216546  Grindelia stricta var. angustifolia D. D. Keck 1931-9-27 1273 San Mateo Dumbarton Bridge. Comment
  POM288781  Grindelia stricta var. platyphylla Lyman Benson 1934-7-4 6101 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  SJSU11709  Grindelia stricta var. platyphylla L. V. Giacomino 1966-5-7 San Mateo Montara Comment
  UCR240778A  Grindelia stricta var. platyphylla T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3518 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  UC407000  Helenium puberulum W. R. Dudley 1895-6-14 San Mateo near Searsville; San Francisquito Creek Comment
  CAS-BOT-BC309538  Helenium puberulum Josephine D. Randall 1908-3-22 s.n. San Mateo Santa Cruz Peninsula. Corte de Madre Canon [Canyon] near Alpine Road Comment
  JROH854  Helianthella californica var. californica John Hunter Thomas 1980-5-8 19942 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1831  Helianthemum scoparium W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1837  Helianthemum scoparium John H. Thomas 1969-5-28 15077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305365  Helianthus annuus J. H. Thomas 1959-12-18 8521 San Mateo Near Palo Alto Yacht Harbor Comment
  CDA40616  Heliotropium curassavicum var. oculatum Mickelson 1958-4-9 385 -58 San Mateo Metsymoto property, East Palo Alto. 0 Comment
  CAS-BOT-BC305929  Helminthotheca echioides Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  CAS-BOT-BC305931  Helminthotheca echioides Alice Eastwood 1919-9-1 s.n. San Mateo San Mateo Comment
  JROH1174  Helminthotheca echioides John Hunter Thomas 1982-7-22 21086 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate on Sand Hill Rd. Comment
  CAS-BOT-BC306177  Hemizonia congesta subsp. congesta J. McMurphy 1909-6-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Summit of ridge between Colma & San Bruno Comment
  CAS-BOT-BC313458  Hemizonia congesta subsp. luzulifolia Roxana Stinchfield 1915-10-14 260 San Mateo Cedro Villa, Stanford University, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC314918  Hemizonia congesta subsp. luzulifolia John H. Thomas 1958-11-22 7507 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto 182 Comment
  CAS-BOT-BC314936  Hemizonia congesta subsp. luzulifolia C. F. Baker 1903-6-30 3350 San Mateo Crystal Springs Comment
  JROH869  Hemizonia congesta subsp. luzulifolia John H. Thomas 1974-10-26 17635 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC314930  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-5-20 s.n. San Mateo Summit between San Mateo and Crystal Springs Lakes Comment
  RSA0034608  Hemizonia corymbosa subsp. corymbosa C. B. Wolf 1927-6-29 538 San Mateo South of Pebble Beach near Pescadero Comment
  POM360313  Hemizonia luzulifolia D. D. Keck 1931-10-5 1277 San Mateo Between Woodside and Crystal Springs Lake. Comment
  SEINET11848429  Hemizonia luzulifolia L. S. Rose 1937-1 37662 San Mateo Emerald Lake, W of Redwood City 183 Comment
  RSA81595  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1910-8-24 s.n. San Mateo Corte Madera Creek. Comment
  SEINET5782066 Image available Hemizonia pungens L. S. Rose 1941-10-10 41463 San Mateo along Bayshore Blvd, San Mateo Comment
  POM49411  Hemizonia pungens subsp. maritima L. R. Abrams 1903-9-26 4017 San Mateo Bay near Menlo Park. Comment
  JROH250  Heracleum maximum John H. Thomas 1975-4-30 17845 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH880  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1955-5-6 4980 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH889  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-4-23 20483 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC310246  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1974-4-11 17126 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  CAS-BOT-BC403867  Hesperocnide tenella George Oberlander 1950-4-16 695 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  UCSB11749  Hesperocyparis macrocarpa Olson, Jim 1962-4-13 San Mateo 1 mile south of Halfmoon Bay, on Halfmoon Bay to San Mateo Road 9 Comment
  CAS-BOT-BC176211  Hesperolinon congestum David D. Keck 1940-5-15 5035 San Mateo Upper Crystal Springs Lake, east side 100 Comment
  CAS-BOT-BC176214  Hesperolinon congestum Hester R. Davis 1920-6-1 179 San Mateo Back of Redwood City Comment
  JROH2924  Hesperolinon micranthum John H. Thomas 1967-5-31 12943 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1212270  Hesperolinon micranthum Helen K. Sharsmith 1947-6-3 3975 San Mateo above Redwood City; Outer South Coast Ranges 152 Comment
  UC1601216  Hesperolinon micranthum Helen K. Sharsmith 1947-6-3 3976 San Mateo near upper Crystal Springs Lake; Outer South Coast Ranges 152 Comment
  JROH3678  Heteromeles arbutifolia John H. Thomas 1973-6-10 16814 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0072445  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  RSA451286  Heteromeles arbutifolia E. A. Purer 1932-7-18 15930 San Mateo Kings Mtn Comment
  SD49795  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. North central portion of ridge. 152 Comment
  CAS-BOT-BC420887  Heuchera micrantha var. diversifolia David D. Keck 1932-6-1 1794 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtns. Comment
  UC202810  Heuchera micrantha var. diversifolia A. D. E. Elmer July, 1903 4762 San Mateo Pilarcitos Stone Dam Comment
  CHSC56591  Heuchera micrantha var. pacifica Steven Triano 1988-5-24 167 San Mateo Ca 0.1 mi w of Old La Honda Road near Martin Creek and 0.4 air miles e of SkyLonda. 381 Comment
  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
  SEINET10598881  Hierochloe occidentalis Charles F. Baker 1902-1-15 Baker 247 San Mateo West side King's Mountain. About ledges and rocky places Comment
  CAS-BOT-BC55441  Hirschfeldia incana Ned Cahill 1974-5-30 331 San Mateo About 3 miles westward from Redwood City. Near the intersection of Canada and Edgewood Roads. Next to Edgewood Road. Comment
  JROH1532  Hirschfeldia incana John H. Thomas 1964-11-15 10528 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  UCD78192  Hoita orbicularis Robert E. Preston 2008-6-10 2640 San Mateo Between Lower Crystal Springs Reservoir and Crystal Springs Golf Course, ca. 0.33 mi W of jct Golf Course Rd and I-280 99 Comment
  CAS-BOT-BC289252  Holcus lanatus Walter Knight; Irja Knight; Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo Lower Part of Colma Canyon, San Bruno Mountain Comment
  RSA128789  Holcus lanatus P. H. Raven 1950-6-3 2268 San Mateo Near San andreas Lake. Comment
  RSA85266  Holodiscus discolor D. D. Keck 1932-6-1 1795 San Mateo Above Searsville Lake, on road between Woodside and Skyline Blvd. Santa Cruz Mountains. Comment
  UC311487  Holodiscus discolor A. D. E. Elmer Jun 1903 4274 San Mateo San Mateo Comment
  JROH3690  Holodiscus discolor var. discolor John H. Thomas 1974-5-29 17399 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10966310  Hookera terrestris Charles F. Baker 1902-4-6 Baker 462 San Mateo Crystal Springs Lake, California. Locally common on grassy slopes. Comment
  RSA60658  Hordeum brachyantherum I. L. Wiggins 1950-5-20 12352 A San Mateo Pescadero Beach Comment
  RSA0034585  Hordeum brachyantherum D. D. Keck 1932-5-6 1465 San Mateo Belmont. Comment
  CAS-BOT-BC284676  Hordeum brachyantherum subsp. brachyantherum Peter H. Raven 1950-6-3 2214 San Mateo Along Millbrae Ave., Millbrae 60 Comment
  CAS-BOT-BC284681  Hordeum brachyantherum subsp. brachyantherum A. D. E. Elmer 1903-6-1 4851 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC284684  Hordeum brachyantherum subsp. brachyantherum George Oberlander 1950-4-16 718 San Mateo San Francisco Watershed Reserve. North of San Andreas Lake Comment
  UC909372  Hordeum brachyantherum subsp. brachyantherum Ira L. Wiggins 1950-5-20 12352 A San Mateo Pescadero Beach Comment
  SEINET10610437  Hordeum brachyantherum subsp. brachyantherum Delzie Demaree 1932-5-8 Demaree 9106 San Mateo Spring Valley Road. Comment
  CAS-BOT-BC289536  Hordeum brachyantherum subsp. californicum Elizabeth McClintock; Paul Reeberg 1989-5-31 s.n. San Mateo Near seep above Robertson School, Daly City, San Bruno Mountains 91 Comment
  JROH5231  Hordeum brachyantherum subsp. californicum W. Lennihan 1989-5-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Left of fire road F going north, across from experimental tall poles. Comment
  SEINET6851597  Hordeum geniculatum Robert A. Evers, Clara V. Evers 1975-8-24 115025 -B San Mateo Trailer Villa, Redwood City. Comment
  CAS-BOT-BC285149  Hordeum marinum subsp. gussoneanum P. R. Hichborn 1920-5-18 236 San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  JROH5237  Hordeum marinum subsp. gussoneanum John H. Thomas 1967-6-1 12952 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5248  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1987-5-19 24300 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC289394  Hordeum murinum subsp. glaucum George Oberlander 1950-4-22 798 San Mateo South boundary, San Francisco Watershed Reserve Comment
  CAS-BOT-BC173821  Hordeum murinum subsp. leporinum Peter Rubtzoff 1977-4-14 8944 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest. Comment
  CAS-BOT-BC173824  Hordeum murinum subsp. leporinum Peter Rubtzoff 1976-6-13 8630 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest. Comment
  CAS-BOT-BC289461  Hordeum murinum subsp. leporinum Javier Penalosa 1963-3-30 2765 San Mateo Guadalupe Valley, San Bruno Mountain 30 Comment
  JROH5256  Hordeum murinum subsp. leporinum John H. Thomas 1967-5-12 12881 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC536143  Horkelia californica L. R. Abrams 1926-5-26 11219 San Mateo San Bruno Hills near Daly City Comment
  CAS-BOT-BC536152  Horkelia californica Peter Rubtzoff 1975-9-11 8380 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, San Bruno Mountains Comment
  CAS-BOT-BC536153  Horkelia californica Lewis S. Rose 1966-8-20 66086 San Mateo Head of Colma Canyon, San Bruno Mountain 205 Comment
  RSA184912  Horkelia californica L. S. Rose 1966-8-20 66086 San Mateo San Bruno Mtn, Head of Colma Canyon. 206 Comment
  CAS-BOT-BC144011  Horkelia marinensis James McMurphy 1909-6-13 s.n. San Mateo Hills back of Colma Comment
  SD27829  Hosackia gracilis Carl B. Wolf 1929-5-10 3703 San Mateo Pigeon Point, south of Pescadero 99 Comment
  CDA5496  Hydrocotyle sibthorpioides T. C. Fuller 1970-5-12 19531 San Mateo Emily Brown property, 3045 Ralston Avenue, Burlingame. 0 Comment
  UCD164331  Hypericum anagalloides Peter Rubtzoff 1976-6-30 8704 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC166763  Hypericum anagalloides Peter Rubtzoff 1976-6-30 8704 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC400966  Hypericum anagalloides Elizabeth McClintock; Paul Reeberg No date on label s.n. San Mateo San Bruno Mountains Comment
  CHSC99214  Hypericum canariense John Dittes; Josephine Guardino 2007-6-30 1457 San Mateo Central Coast; Ano Nuevo State Reserve; coastal terrace ca. 2.4 air-mile SE of Pidgeon Point Lighthouse; east side of Highway 1 on slope south and east of Gazos Creek. Undesignated section of Punta Del Ano Nuevo Land Grant. 21 Comment
  UCD160238  Hypericum canariense Christopher Dillis 2015-5-15 2 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  RSA176615  Hypochaeris glabra John H. Thomas 1964-4-30 10338 San Mateo Near intersection of El Camino Real and F St, Colma Comment
  CAS-BOT-BC311398  Hypochaeris glabra Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  JROH920  Hypochaeris glabra John Hunter Thomas 1985-5-11 24743 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18313  Hypochaeris glabra C. B. Wolf 1927-7-14 598 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC311485  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  JROH932  Hypochaeris radicata John Hunter Thomas 1981-7-24 20733 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH937  Hypochaeris radicata John Hunter Thomas 1987-5-5 24239 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1598591  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  UCR121563  Hypochaeris radicata George K. Helmkamp, E. A. Helmkamp 1999-6-28 4968 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  CAS-BOT-BC311489  Hypochaeris radicata David D. Keck 1932-5-6 1462 San Mateo Belmont Comment
  JROH929  Hypochaeris radicata John H. Thomas 1974-5-19 17383 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10560665  Hystrix californica Peter H. Raven 1967-6-25 Raven 21418 San Mateo Pescadera Road 2.8 mi SW of Alpine Road, borders of coniferous forest. Comment
  JROH1535  Iberis umbellata Toni Corelli 2012-10-23 377 San Mateo Jasper Ridge Biological Preserve, Stanford University. Caretaker garden near the residence 109 Comment
  SD38479  Iris douglasiana Marie Cummings 1933-4-14 16 San Mateo Half-Moon Bay. Comment
  SEINET8529508 Image available Iris douglasiana Phyllis Kuehn 1967-5-7 18 San Mateo Skyline Blvd. Comment
  CAS-BOT-BC133649  Iris longipetala Walter Knight; Irja Knight 1965-3-21 956 San Mateo Along ridge near power lines at Brisbane end Comment
  CAS-BOT-BC133655  Iris longipetala C. F. B. 1902-3-22 348 San Mateo South San Francisco Comment
  CAS-BOT-BC133659  Iris longipetala Rimo Bacigalupi 1922-3-26 s.n. San Mateo Between Gazos Creek and Pigeon Pt. Comment
  CAS-BOT-BC133665  Iris longipetala Alice Eastwood; John Thomas Howell 1937-5-7 4325 San Mateo Hills south of Visitacion Valley Comment
  HSC13892  Iris longipetala L. S. Rose 1968-3-26 68009 San Mateo S base of San Bruno Mtns., S San Francisco 30 Comment
  OBI2898  Iris longipetala Lewis S. Rose 1968-3-26 68009 San Mateo South base of San Bruno Mts, South San Francisco 30 Comment
  CAS-BOT-BC133669  Iris longipetala W. S. Cooper 1925-4-3 s.n. San Mateo New Years Point Comment
  CAS-BOT-BC57731  Isoetes howellii J. I. McMurphy 1906-5-19 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC112618  Isolepis cernua Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo Colma Canyon Comment
  RSA132406  Isolepis cernua John H. Thomas 1959-7-8 8017 San Mateo Pescadero Beach. Comment
  CAS-BOT-BC112630  Isolepis cernua Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo In lower Owl Canyon 45 Comment
  CAS-BOT-BC340137  Jaumea carnosa Ray Pestrong 1963-11-8 s.n. San Mateo South San Francisco Bay. Near east Palo Alto, Dumbarton Bridge Comment
  UC672619  Juglans californica var. hindsii Herbert L. Mason 1924-10-8 1107 San Mateo along creek at n end Jasper Ridge (2 1/2 mi w of Palo Alto); San Francisquito Creek Comment
Read comments
Sep 19 2011
  JROH2771  Juglans hindsii John H. Thomas 1976-11-5 18432 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH2777  Juglans hindsii John Hunter Thomas 1987-4-16 24203 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4446  Juncus bolanderi John Hunter Thomas 1977-6-16 18805 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake; Delta in Searsville Lake. Comment
  UCR121569  Juncus bufonius George K. Helmkamp, E. A. Helmkamp 1999-6-28 4997 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JROH5659  Juncus bufonius var. bufonius John Rawlings 2014-5-23 1270 San Mateo Jasper Ridge Biological Preserve, Stanford University; up-slope from boat dock (aka Searsville Lab Landing). 104 Comment
  UC1101044  Juncus bufonius var. congestus Herbert L. Mason 1949-7-7 14029 San Mateo Mouth of Gazos Creek Comment
  JROH4458  Juncus bufonius var. occidentalis John H. Thomas 1956-4-7 5619 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4465  Juncus bufonius var. occidentalis John H. Thomas 1973-4-14 16561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC115873  Juncus effusus subsp. pacificus J. Rawlings 2013-7-23 2001 San Mateo Near Searsville Landing, W shore of Searsville Lake, Jasper Ridge Biological Preserve, Sand Brancisco Bay subregion. 105 Comment
  UC1601740  Juncus effusus subsp. pacificus J. Burtt Davy 1893-6-22 757 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  RSA790891  Juncus lescurii Peter Rubtzoff 1976-6-30 8708 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  CDA39185  Juncus occidentalis W. Plummer 1974-4-18 s.n. San Mateo Pescadero, Carlene Shade property. 0 Comment
  JEPS128399  Juncus patens Adam C. Schneider 2013-5-17 129 San Mateo Crystal Springs Reservoir. Comment
  UC1601800  Juncus phaeocephalus J. Burtt Davy 1893-6-22 756 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  UCR280164  Juncus phaeocephalus Peter Rubtzoff, Roman Gankin 1976-6-30 8702 San Mateo Central Coast, San Bruno Mountains. 'Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence 220 Comment
  RSA783798  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1980-8-4 9563 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH4518  Juncus xiphioides John Hunter Thomas 1979-5-18 19557 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4049  Kickxia spuria John Hunter Thomas 1982-11-8 21257 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH5263  Koeleria macrantha W. Lennihan unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine, 50' east of fire road, east of moisture tubes in neutron probes. Comment
  RSA18374  Koeleria macrantha C. B. Wolf 1927-7-1 534 San Mateo Above Emerald Lake, back of Redwood City. Comment
  RSA582055  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  UC1738871  Koeleria macrantha Dean W. Taylor 1988-3-30 9491 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
  CAS-BOT-BC273730  Koeleria pyramidata Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain. Slope below parking lot 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-BC272320  Lachnagrostis filiformis George Oberlander 1950-5-6 923 San Mateo Upper Crystal Springs Lake, San Francisco Watershed Reserve Comment
  CAS-BOT-BC340469  Lactuca saligna Walter Knight; Irja Knight 1963-10-7 328 San Mateo San Bruno Mountain. Cow Trough Ravine Comment
  CAS-BOT-BC340639  Lactuca serriola Ned Cahill 1974-5-13 276 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC340703  Lactuca virosa John Thomas Howell 1954-9-8 30108 San Mateo Skyline Blvd. at San Andreas Lake, 2 miles west of San Bruno Comment
  CAS-BOT-BC341625  Lagophylla ramosissima W. R. Dudley 1905-9-23 s.n. San Mateo Santa Cruz Mountain Peninsula. Alpine road, Black Mountain Comment
  CAS-BOT-BC341629  Lagophylla ramosissima James I. McMurphy 1906-9-24 s.n. San Mateo Coal Mine Ridge Comment
  POM283266  Lamium amplexicaule Lyman Benson 1930-4-17 2078 San Mateo Stanford University, foothills. Upper Sonoran. 122 Comment
  JROH5845  Lapsana communis Paul Heiple 2007-7-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Bear Creek near Preserve boundary, east bank about one meter from stream Comment
  CAS-BOT-BC339096  Lasthenia californica John H. Thomas 1964-4-30 10367 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC339081  Lasthenia californica W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Above Seal Cove Comment
  CAS-BOT-BC339090  Lasthenia californica John H. Thomas 1969-4-24 14922 A San Mateo Near Canada College, Redwood City, near Farm Hill Drive Comment
  UC517467  Lasthenia californica subsp. californica John Thomas Howell 1933-5-3 11204 San Mateo San Bruno Hills Comment
  UC517990  Lasthenia californica subsp. californica Lewis S. Rose 1933-4-30 33128 San Mateo Redwood City Comment
  JEPS24276  Lasthenia glabrata subsp. glabrata J. H. Thomas 1954-4-2 3793 San Mateo 1.5 mi e of center Redwood City Comment
  POM49821  Lasthenia glabrata subsp. glabrata L. R. Abrams 1902-5-11 2456 San Mateo Crystal Springs. Comment
  CAS-BOT-BC355545  Lasthenia glabrata var. glabrata Roxana S. Ferris 1927-4-28 6866 San Mateo Redwood City Comment
  CAS-BOT-BC368190  Lasthenia minor Otto M. Sokol 1953-5-9 52 San Mateo Pescadero Beach Comment
  UC188985  Lasthenia minor Michener and Bioletti 1892-5-1 San Mateo Cemeteries Comment
  UCD133845  Lasthenia minor June McCaskill 1954-5-8 295 San Mateo Moss Beach. Comment
  CAS-BOT-BC204916  Lathyrus Elizabeth McClintock 1972-5-10 s.n. San Mateo San Bruno Mountain. Just belong Parking Lot at the summit Comment
  SEINET12153854  Lathyrus jepsonii Unknown 1933-1 70 San Mateo Alpine Rd Comment
  POM19356  Lathyrus jepsonii subsp. californicus Edward L. Greene 1902-5-16 8270 San Mateo Foothills near Stanford University. Comment
  UC201111  Lathyrus littoralis Katharine Brandegee 1918-7-4 San Mateo Salida Beach Comment
  POM19705  Lathyrus vestitus subsp. vestitus C. F. Baker 1903-4-6 1893 San Mateo San Bruno Hills. Comment
  POM223333  Lathyrus vestitus subsp. vestitus L. S. Rose 1935-5-29 35191 San Mateo Kings Mountain Comment
  POM19350  Lathyrus vestitus subsp. vestitus C. F. Baker 1902-5-10 8256 San Mateo Summit of Coast Range. Comment
  RSA15256  Lathyrus vestitus subsp. vestitus Carl B. Wolf 1927-2-19 218 San Mateo East side of Kings Mountain. Comment
  UC1128955  Lathyrus vestitus var. vestitus H. S. Yates 1935-5-8 5203 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  RSA176876  Lavatera cretica John H. Thomas 1964-4-30 10335 San Mateo Near intersection of El Camino Real and F St, Colma Comment
  CAS-BOT-BC323155  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  POM298220  Layia chrysanthemoides D. D. Keck 1932-4-29 1450 San Mateo Redwood City. 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
  JEPS39180  Layia gaillardioides W. L. Jepson 1914-3-22 5735 San Mateo Redwood City Comment
  CAS-BOT-BC321070  Layia gaillardioides Rimo Bacigalupi 1923-4-29 s.n. San Mateo Dr. Williams' place, Old La Honda Grade near La Holda. Comment
  CAS-BOT-BC321090  Layia gaillardioides James I. McMurphy 1909-5-26 s.n. San Mateo Above La Honda Comment
  CAS-BOT-BC321096  Layia gaillardioides W. R. Dudley 1905-6-19 s.n. San Mateo Alpine School, Black Mt. Comment
  JROH983  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195579  Layia hieracioides John H. Thomas 1966-4-22 11568 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  UC583132  Layia hieracioides Lewis S. Rose 1936-5-28 36309 San Mateo w of Redwood City; Emerald Lake 91 Comment
  CAS-BOT-BC327510  Layia hieracioides W. R. Dudley 1900-5-19 s.n. San Mateo La Honda Stage Road below Grand View Saloon Comment
  RSA100979  Layia hieracioides G. Oberlander 1949-9-25 368 San Mateo On Sawyer Ridge, San Francisco Watershed Reserve. Comment
  RSA21999  Layia hieracioides J. T. Howell 1938-5-1 13769 San Mateo Colma Canyon Comment
  RSA51286  Layia hieracioides Peter H. Raven 1950-4-6 1794 San Mateo Summit Ridge; San Bruno Mts. Comment
  JROH1000  Layia platyglossa John Hunter Thomas 1981-4-23 20476 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC204134  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC382223  Layia platyglossa Vesta F. Hesse 1952-5-12 938 San Mateo Pigeon Point 15 Comment
  SEINET10879172  Layia platyglossa John T. Middleton 1937-4-10 Middleton s.n. San Mateo San Mateo Co., Ca. Comment
  CAS-BOT-BC527272  Lemna minuta Carl B. Wolf 1929-4-29 3660 San Mateo 10 miles south of San Franciscot on Skyline Blvd. Comment
  CAS-BOT-BC527273  Lemna minuta Roxana S. Ferris 1921-3-20 2114 a San Mateo Alpine Creek Road near juncture with Pescadero Road Comment
  JROH2783  Lepechinia calycina L. R. Abrams 1915-11-1 5479 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  RSA285070  Lepidium latifolium J. T. Howell 1978-7-18 53189 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  CAS-BOT-BC12600  Lepidium nitidum Margaret A. Barry 1937-5-8 83 San Mateo On Coal Mine Ridge. Comment
  JROH1544  Lepidium nitidum John H. Thomas 1973-3-11 16479 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC10674  Lepidium nitidum Mrs. Brandegee 1892-4-9 San Mateo South San Francisco Comment
  UC1301017  Lepidium nitidum Helen K. Sharsmith 1963-2-16 5143 San Mateo above Daly City; San Francisco Bay Region, San Bruno Mountain 106 Comment
  RSA95516  Lepidium oxycarpum L. S. Rose 1953-4-5 53009 San Mateo Redwood City, along Bayshore Highway. 3 Comment
  CAS-BOT-BC12781  Lepidium perfoliatum David 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
  CAS-BOT-BC12946  Lepidium strictum John H. Thomas 1966-4-12 11556 San Mateo East Palo Alto. Along sidewalks near Woodland Avenue and University Avenue. Comment
  POM176894  Lepidium strictum Helen M. Edwards 1917-2-8 s.n. San Mateo Stanford University. Campus. Comment
  CDA32442  Leptochloa fascicularis I. J. Campbell 1959-12-14 San Mateo San Miguel 0 Comment
  JROH5725  Leptochloa fusca subsp. fascicularis John Rawlings 2015-9-22 1638 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  CAS-BOT-BC226539  Leptosiphon acicularis H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. On Jasper near S. border Woodside Comment
  CAS-BOT-BC226595  Leptosiphon ambiguus John H. Thomas 1971-5-2 15815 San Mateo Near intersection of Canada Road and Edgewater [Edgewood] Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC226599  Leptosiphon ambiguus A. D. E. Elmer 1903-4-1 4913 San Mateo Crystal Springs Lake Comment
  POM65040  Leptosiphon ambiguus A. D. E. Elmer 1903-04 s.n. San Mateo Crystal Springs Lake. Comment
  SD3903  Leptosiphon androsaceus U. S. Grant IV Jun 1925 San Mateo Burlingame Comment
  CAS-BOT-BC226725  Leptosiphon latisectus W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Peninsula. Near Colma Comment
  CAS-BOT-BC226729  Leptosiphon latisectus D. D. Davis 1903-4-1 s.n. San Mateo Searsville Ridge Comment
  UCSB12382  Leptosiphon liniflorus Dearing, Hugh; Dearing, Margaret 1933-5-14 San Mateo Skyline Drive, so. of San Francisco Comment
  RSA107079  Leptosiphon liniflorus L. S. Rose 1956-5-7 56068 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  UC729640  Leptosiphon parviflorus Carl B. Wolf 1929-5-25 3727 San Mateo s of Pescadero; Pebble Beach Comment
  UC133724  Leptosiphon rosaceus Dr. E. B. Copeland 1903-6-6 3300 San Mateo Montara Point Comment
  RSA0103661  Leptosiphon rosaceus P. H. Raven 1950-4-30 1954 San Mateo Montara. 9 Comment
  UCD78147  Leptospermum laevigatum Robert E. Preston 2008-4-1 2599 San Mateo Lower Crystal Springs Reservoir, 0.12 mi SW of jct Hwy 92 and Hwy 35 92 Comment
  POM197775  Lessingia arachnoidea John T. Howell 1926-10-9 2220 San Mateo Between Lake San Andreas and Crystal Springs Lake Comment
  SEINET5782289 Image available Lessingia arachnoidea L. S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon Comment
  UC87932  Lessingia arachnoidea C. F. Baker 1902-9-2 1548 San Mateo Crystal Springs Lake Comment
  UCD134048  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo Crystal Springs Lakes, west of San Mateo. 243 Comment
  JROH1006  Lessingia glandulifera var. glandulifera G. H. Mallory 1919-7-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; south end of Jasper Ridge Comment
  SEINET7063128  Lessingia glandulifera var. pectinata A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. UTM Zone 10, 568418mE, 4140415mN. (WGS84/NAD83). 174 Comment
  JROH1033  Lessingia hololeuca John H. Thomas 1972-8-18 16153 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM361825  Lessingia hololeuca L. S. Rose 1936-9-19 s.n. San Mateo Crystal Springs Lake 152 Comment
  RSA608390  Lessingia hololeuca L. S. Rose 1936-9-19 s.n. San Mateo Crystal Springs Lake 152 Comment
  SEINET7063127  Lessingia hololeuca A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. UTM Zone 10, 568418mE, 4140415mN. (WGS84/NAD83). 174 Comment
  SEINET10617599 Image available Lessingia hololeuca var. arachnoidea Charles F. Baker 1902-9-2 Baker 1548 San Mateo Crystal Springs Lake. Large colonies along roadsides. Comment
  CAS-BOT-BC342091  Leucanthemum vulgare Elizabeth McClintock; Paul Reeberg 1987-6-12 s.n. San Mateo San Bruno Mountains. Along road to Camp Silverspot Comment
  CAS-BOT-BC342094  Leucanthemum vulgare John Thomas Howell 1949-7-4 25356 San Mateo On Skyline Blvd. north of Millbrae Comment
  UCD61319  Leymus californicus G. L. Stebbins Jr. 1941-4-26 3089 San Mateo 1 mile Northeast of La Honda, along San Gregorio Creek. Comment
  CAS-BOT-BC283696  Leymus condensatus David L. Morgan 1955-8-1 s.n. San Mateo 1 mile N of Santa Cruz County line on Highway 1 22 Comment
  UCD64550  Leymus condensatus David L. Morgan 1955-8-1 San Mateo Lower San Mateo County: 1 mile N of Santa Cruz county line on Hwy 1. 22 Comment
  CAS-BOT-BC272187  Leymus triticoides Phillip C. Wheeler 1965-8-14 s.n. San Mateo Brisbane Lagoon, San Bruno Mountain Comment
  POM132667  Ligusticum apiifolium A. D. E. Elmer 1903-07 4966 San Mateo San Mateo Comment
  JEPS32129  Lilaea scilloides W. L. Jepson 1923-10-18 10260 San Mateo Colma Comment
  CAS-BOT-BC451674  Lilaea scilloides Alice Eastwood 1922-4-24 11196 San Mateo Between Princeton & Morman Comment
  CAS-BOT-BC130798  Lilium pardalinum Josephine D. Randall 1907-7-28 237 San Mateo Iversons near Peters Creek Comment
  UC137902  Limnanthes douglasii subsp. douglasii C. F. Baker 1903-4-8 1916 San Mateo San Andreas Lake Comment
  RSA14962  Limnanthes douglasii subsp. douglasii L. S. Rose 1935-5-4 35146 San Mateo Skyline Blvd., W. of San Bruno. Comment
  RSA644976  Limnanthes macounii Rudolf Schmid 2000-2-24 2000 -2 San Mateo Aong E side of Hwy 1 S of Moss Beach and directly opposite Half Moon Bay airport. 10 Comment
  UCD166487  Limosella Peter Rubtzoff 1965-10-19 5661 San Mateo Pilarcitos Lake. Comment
  JROH4055  Limosella acaulis John Hunter Thomas 1980-11-12 20169 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5853  Limosella acaulis Herb Dengler 1982-11-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; beach below old hamburger stand, Searsville Lake Comment
  JROH5866  Limosella acaulis Herb Dengler 1982-8-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3696424 Image available Linanthus androsaceus Lewis S. Rose 1933-4-30 33135 San Mateo Redwood City. Comment
  SEINET3696192 Image available Linanthus liniflorus Lewis S. Rose 1932-5-3 32217 San Mateo San Bruno. 183 Comment
  UC23693  Linanthus liniflorus Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  UC1111630  Linanthus liniflorus Lewis S. Rose 1956-5-7 56068 San Mateo w of San Mateo (Skyline Blvd) 182 Comment
  JROH5967  Linaria bipartita John Hunter Thomas 1982-5-25 20964 San Mateo Jasper Ridge Biological Preserve; roadside [Sand Hill Rd.] Comment
  JROH2940  Linum bienne Ann Lambrecht 2002-5-18 2 San Mateo Jasper Ridge Biological Preserve, Stanford University; Sand Hill Road fence line Comment
  UC1135272  Lithocarpus densiflorus C. M. Belshaw 1935-1-25 1472 San Mateo 2.5 mi nw Sierra Moreno Peak; Santa Cruz Quad. 609 Comment
  CAS-BOT-BC36071  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-10-1 s.n. San Mateo Bear Gulch, Sierra Morena Comment
  POM222890  Lithocarpus densiflorus var. densiflorus S. S. Berry 1899-3-13 s.n. San Mateo King's Mountain Road. 549 Comment
  POM270415B  Lithocarpus densiflorus var. densiflorus Lyman Benson 1932-7-25 3952 San Mateo Kings Mt., above Woodside, Santa Cruz Mt range, San Francisquito Creek watershed. 305 Comment
  RSA152237  Lithocarpus densiflorus var. densiflorus I. L. Wiggins 1925-04 1661 San Mateo On Kings Mountain Road one mile above Woodside just above the first Pseudotsuga menziesii on the right edge of the road. Comment
  CAS-BOT-BC430769  Lithophragma affine W. R. Dudley 1900-3-17 s.n. San Mateo Redwood stage road below Hookerville Comment
  CAS-BOT-BC436217  Lithophragma heterophyllum John H. Thomas 1961-5-14 9361 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  CAS-BOT-BC436221  Lithophragma heterophyllum Ira L. Wiggins 1928-4-14 2900 San Mateo Alpine Creek Road Comment
  UC858160  Lithophragma heterophyllum Lewis S. Rose 1939-4-12 39062 San Mateo Crystal Springs Lake 152 Comment
  CAS-BOT-BC436224  Lithophragma heterophyllum Peter Rubtzoff 1953-5-14 1344 San Mateo Pilarcitos Creek canyon 1 to 2 miles downstreams from Pilarcitos Lake. Comment
  JROH3901  Lithophragma heterophyllum Brenda Butner and Toni Corelli 1990-3-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 3 Comment
  CAS-BOT-BC60217  Lobularia maritima Robert Robertson 1954-4-14 73 San Mateo By roadside adjacent to Salicornia marsh. Northwest of Palo Alto Yacht Club. 3 Comment
  CAS-BOT-BC342307  Logfia filaginoides George Oberlander 1950-4-23 767 San Mateo San Francisco Watershed Reserve. Top of Cahill Ridge Comment
  CAS-BOT-BC342466  Logfia gallica John H. Thomas 1961-5-7 9265 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH729  Logfia gallica John H. Thomas 1961-4-29 9193 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH732  Logfia gallica John H. Thomas 1967-5-31 12922 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC173835  Lolium multiflorum Peter Rubtzoff 1977-6-21 9059 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  CAS-BOT-BC283230  Lolium multiflorum Cherie Wetzel 1969-6-20 882 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  SEINET11678784  Lolium multiflorum E. A. Purer 1933-1 5418 San Mateo Santa Clara Valley, near Belmont Comment
  JROH5294  Lolium perenne W. Lennihan 1990-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 15 - path turnoff by black oak, bottom of swale. Comment
  RSA6410  Lolium perenne D. D. Keck 1932-5-6 1474 San Mateo Millbrae Highlands Comment
  CAS-BOT-BC269125  Lolium perenne Sister Anna Voss 1950-6-8 s.n. San Mateo N.W. head of Ravine behind Belmond Church Comment
  CAS-BOT-BC269174  Lolium temulentum No date on label s.n. San Mateo Colma Comment
  UC21261  Lomatium caruifolium var. caruifolium Alice Eastwood April 1896 San Mateo on rd. to Crystal Springs Comment
  SEINET13944401 Image available Lomatium dasycarpum C. F. Baker 1902-1 461 San Mateo Crystal Springs Lake. Comment
  SEINET196566  Lomatium dasycarpum Pete Rowen 1950-4-16 89 San Mateo Colma Canyon San Brumo Mts. Comment
  JROH259  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1967-5-12 12876 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH268  Lomatium dasycarpum subsp. dasycarpum John Hunter Thomas 1981-4-27 20504 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
  POM287764  Lomatium macrocarpum Lyman Benson 1931-3-15 2636 San Mateo Emerald Lake, Redwood City Comment
  CAS-BOT-BC240429  Lonicera hispidula W. R. Dudley 1895-9-15 s.n. San Mateo El Corte Madera, Canon [Canyon], Sta Cruz Mts Comment
  CAS-BOT-BC240582  Lonicera hispidula Ned Cahill 1974-5-13 264 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC240587  Lonicera hispidula David D. Keck 1932-8-13 1753 San Mateo Alpine Creek Road above Rolph's Ranch, east slope of Santa Cruz Mtns. 550 Comment
  CAS-BOT-BC240600  Lonicera hispidula J. H. Thomas 1949-10-16 1157 San Mateo Between Skyline Drive and Searsville Lake 304 Comment
  CAS-BOT-BC240606  Lonicera hispidula Carl B. Wolf 1930-11-5 1805 San Mateo 2 miles west of La Honda, Santa Cruz Mtns. 304 Comment
  UC139353  Lonicera hispidula var. vacillans C. F. Baker 1901-9-2 1533 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC243963  Lonicera involucrata var. ledebourii D. E. Breedlove 1974-5-13 36219 San Mateo San Pedro Valley Park, Pacific 152 Comment
  RSA788374  Lonicera involucrata var. ledebourii Peter Rubtzoff 1980-12-11 9635 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  JEPS91401  Lotus benthamii Dean W. Taylor 1989-8-1 10412 San Mateo Montara Mountain, saddle between North Peak and Montara Knob 518 Comment
  JROH2049  Lotus corniculatus John Hunter Thomas 1983-7-7 22826 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR121554  Lotus corniculatus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4990 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-BC389704  Lotus corniculatus L. Sigal 1969-7-1 s.n. San Mateo Belmont Comment
  HSC24031  Lotus corniculatus Mary Katherine Wicksten 1971-6-28 131 San Mateo Huddart Park. Near Park Office. Comment
  SEINET957265  Lotus corniculatus Jane A. Reese 1966-1 131 San Mateo Whiskey hill road, 1 mile from junction with Woodside road. 152 Comment
  CAS-BOT-BC157970  Lotus formosissimus Peter Rubtzoff; Roman Gankin 1975-5-21 7972 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon Comment
  UC665645  Lotus formosissimus Ethel Crum 1934-4-29 1701 San Mateo s of Pescadero 30 Comment
  UC80966  Lotus formosissimus Katharine Brandegee 1905-6-20 San Mateo seashore of Halfmoon Bay Halfmoon Bay Comment
  UC80843  Lotus micranthus C. F. Baker 1902-5-4 744 San Mateo Woodside Comment
  POM276693  Lotus unifoliolatus Lyman Benson 1930-5-26 2142 San Mateo Stanford University. Lake Searsville. 152 Comment
  POM276640  Lotus wrangelianus Lyman Benson 1935-5-5 6538 San Mateo Lake Searsville. 152 Comment
  UCSC006526  Lupinus Randall Morgan 1990-6-8 1752 San Mateo Colony along road just above Sandy Point ranger station (Sec 35, Franklin Point Quad) Comment
  UC126955  Lupinus affinis J. Burtt Davy 1895-4-20 1087 San Mateo San Mateo Creek Comment
  SEINET10488364  Lupinus affinis David B. Dunn, Howard Brown 1946-5-15 Dunn 2542 San Mateo 3.7 miles ne of la honda on the se side of the hwy. Open lush meadow in the Hilltops of the san francisco penninsula on hwy from woodside to la honda; Bumble bees visiting this species only and not 2543 and 2544 Comment
  SEINET10488443  Lupinus albifrons Charles F. Baker 1902-5-4 Baker UMO 71685 San Mateo Crystal spring. Open sides of gulches, 9-18 dm high 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-BC195805  Lupinus albifrons var. albifrons Charles Piper Smith 1948-4-23 48149 San Mateo Canada Road - 4 miles north of Woodside 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-BC196106  Lupinus albifrons var. collinus Javier Penalosa 1963-3-9 2685 San Mateo 1/2 mi. east of 1314 ft. summit 304 Comment
  CAS-BOT-BC196115  Lupinus albifrons var. collinus Charles Piper Smith 1908-4-26 1417 San Mateo S. San Francisco - north, base of San Bruno Mt. Comment
  CAS-BOT-BC196119  Lupinus albifrons var. collinus Charles Piper Smith 1908-5-31 1439 San Mateo South San Francisco, San Bruno Mountain, S.E. of cemeteries Comment
  UC201982  Lupinus arboreus A. D. E. Elmer May, 1903 4414 San Mateo Colma Comment
  SEINET10451219  Lupinus arboreus Harold W. Rickett 1928-7-10 Rickett s.n. San Mateo La Honda, CA. Comment
  SEINET10488471  Lupinus arboreus Marcus E. Jones 1881-6-30 Jones 2322 San Mateo Comment
  POM276478  Lupinus arboreus var. arboreus Lyman Benson 1930-6-14 2150 San Mateo San Gregorio. 30 Comment
  RSA176779  Lupinus arboreus var. arboreus John H. Thomas 1963-5-20 10109 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  CHSC57379  Lupinus bicolor Sandy Trimble 1987-4-13 11 San Mateo On e slope of Hwy 84, 6.7 mi w of Hwy 1, and 8.6 mi e of Hwy 35. 274 Comment
  UCD107181  Lupinus bicolor A. A. Heller 1907-4-20 8451 San Mateo near Lake Merced. Comment
  POM257513  Lupinus densiflorus var. aureus Carl B. Wolf 1929-5-17 3712 San Mateo Alpine road east of Skyline Blvd. 305 Comment
  SEINET12154527  Lupinus densiflorus var. aureus Unknown 1932-1 9162 San Mateo Gov. Rolph Estate Comment
  POM11073  Lupinus densiflorus var. palustris A. D. E. Elmer 1903-05 4847 San Mateo Lake San Andreas. Comment
  SEINET10490754  Lupinus formosus var. formosus Charles Piper Smith 1922-6-17 Smith 3552 San Mateo Millbrae-lake pilarcitos. Comment
  SEINET4853650  Lupinus lasiotropis Carl F. Baker Not on sheet 470 San Mateo Crystal Springs Lake. Comment
  POM11079  Lupinus latifolius subsp. latifolius A. D. E. Elmer 1903-06 4593 San Mateo Woodside. Comment
  RSA134038  Lupinus latifolius subsp. latifolius W. R. Dudley 1894-4-21 s.n. San Mateo San Mateo Ravine. Comment
  JROH2122  Lupinus latifolius var. latifolius John H. Thomas 1977-4-29 18575 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5799  Lupinus latifolius var. latifolius John Rawlings 2016-4-4 1701 San Mateo Jasper Ridge Biological Preserve, Stanford University; Douglas Iris site 94 Comment
  UC127015  Lupinus latifolius var. latifolius J. Burtt Davy 1895-4-20 1085 San Mateo San Mateo Creek Comment
  UC15897  Lupinus latifolius var. latifolius Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  JROH2125  Lupinus luteolus H. & R. Dengler 1958-6-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 200' due north of point where Corte Madera Cr. enters the preserve Comment
  JROH2130  Lupinus nanus John H. Thomas 1976-4-2 18073 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2136  Lupinus nanus John Hunter Thomas 1983-4-7 21334 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam 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
  CAS-BOT-BC164349  Lupinus nanus Peter Rubtzoff 1978-7-8 9225 San Mateo Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction. East Fork Colma Creek Canyon, W side of canyon Comment
  SEINET5628417 Image available Lupinus nanus A. A. Heller 1907-4-20 8452 San Mateo Near Lake Merced. Comment
  UCD108982  Lupinus nanus A. A. Heller 1907-4-20 8452 San Mateo near Lake Merced. Comment
  POM276524  Lupinus succulentus Lyman D. Benson 1930-4-27 2077 San Mateo Stanford University. 122 Comment
  POM276547  Lupinus variicolor Lyman D. Benson 1930-4-6 2041 San Mateo Moss Beach. West slope. 15 Comment
  UC511346  Lupinus variicolor Lyman Benson 1931-3-3 2619 San Mateo Ocean Bluff Moss Beach, Ocean Bluff (Moss Beach) 30 Comment
  UC865524  Lupinus variicolor Alice Eastwood and John Thomas Howell 1938-6-26 6052 San Mateo Montara Mt. , Montara Mt. (above Point San Pedro) Comment
  POM118220  Lupinus variicolor Harriet Ann Walker 1913-6-1 2982 San Mateo Tobin Comment
  RSA162483  Lupinus variicolor E. K. Balls 1963-5-22 12065 San Mateo 4.1 miles N of Moss Beach, along Hwy 1. 61 Comment
  SEINET10489093  Lupinus variicolor Walter Knight, Irja Knight 1965-4-25 Knight 1077 San Mateo Plants of san bruno mtn. At roadside on ridge few yards e of western power Lines. Comment
  SEINET10489110  Lupinus variicolor Smith 1948-4-23 Smith 48141 San Mateo Hwy 1, san pedro point, north grade. Comment
  SEINET12154795  Lupinus variicolor M. T. Doutt 1931-1 423 San Mateo Skyline Blvd, W of Hillbrae Comment
  SEINET5559201  Lupinus variicolor H. S. Gentry 1931-1 86 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  POM290435  Luzula comosa Lyman Benson 1930-5-3 2102 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  CAS-BOT-BC441265  Luzula macrantha Margaret A. Barry 1937-4-21 7 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC441269  Luzula macrantha Elmer I. Applegate 1895-3-9 753 San Mateo Near Woodside Comment
  CAS-BOT-BC441369  Luzula subsessilis John H. Thomas 1964-4-30 10369 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC290600  Lythrum Peter Rubtzoff 1987-8-26 9837 San Mateo San Bruno Mountain, Saddle area on N side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road. Comment
  JROH5961  Lythrum hyssopifolia John Rawlings 2017-5-9 2053 San Mateo Jasper Ridge Biological Preserve, Stanford University; drainage ditch along road south of visitor oarking lot near trail up slope to Global Change site. 115 Comment
  UC138274  Lythrum hyssopifolia Katharine Brandegee 1905-6-1 San Mateo Colma Comment
  UCD103044  Lythrum hyssopifolia Malcolm A. Nobs; S. Galen Smith 1949-8-26 1578 San Mateo 1 mile S of Hal Moon Bay. Comment
  RSA133887  Madia capitata John H. Thomas 1959-8-16 8064 San Mateo About two miles southwest of Pescadero. 61 Comment
  CAS-BOT-BC343911  Madia elegans Cherie Wetzel 1969-7-28 993 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC343914  Madia elegans A. D. E. Elmer 1903-5-1 4662 San Mateo Alpine School House Comment
  POM190414  Madia elegans subsp. vernalis D. D. Keck 1932-6-18 1979 San Mateo Skyline Boulevard, at Langley Hill (SW of Stanford University) 610 Comment
  JEPS20312  Madia exigua Lewis S. Rose 1956-5-28 56083 San Mateo hills w Redwood City; Emerald Lake 182 Comment
  RSA124756  Madia exigua John H. Thomas 1958-5-10 7141 San Mateo Jasper Ridge. About 5 miles SW of Palo Alto. 152 Comment
  CAS-BOT-BC344493  Madia exigua Walter Knight; Irja Knight 1964-5-19 625 San Mateo San Bruno Mountain. North Power Line at Ridge Road Comment
  CAS-BOT-BC343329  Madia gracilis Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Lower slope on south side above Olivet Cemetery Comment
  JROH1067  Madia gracilis John H. Thomas 1958-5-10 7142 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1090  Madia gracilis John Hunter Thomas 1987-5-19 24295 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1096  Madia gracilis John Hunter Thomas 1992-5-14 25226 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  CAS-BOT-BC343325  Madia gracilis Gwendolan Newell 1914-6-18 s.n. San Mateo Raymonds ranch, Los Gatos Comment
  RSA120834  Madia madioides S. S. Tillett, I. Sternback 1956-6-24 529 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  CAS-BOT-BC345110  Madia sativa J. H. Thomas 1963-7-19 10179 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC345116  Madia sativa David D. Keck 1932-5-25 1782 San Mateo Hills two miles west of Belmont Comment
  CAS-BOT-BC353475  Madia sativa Peter Rubtzoff 1979-7-26 9301 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  LA83388  Madia sativa O. H. Kappler; 1947-5-23 San Mateo Pescadero Beach Comment
  CAS-BOT-BC345138  Madia sativa George Oberlander 1950-6-3 1045 San Mateo San Francisco Watershed Reserve. On Sawyer Ridge Comment
  JROH1113  Madia sativa John Hunter Thomas 1988-6-6 24511 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Lakeside Laboratory Comment
  SD38971  Madia sativa Delzie Demaree 1932-5-30 9191 San Mateo Comment
  SEINET11810637  Madia sativa Unknown 1932-1 9191 San Mateo Los Francos Woods Comment
  CHSC20345  Maianthemum racemosum L. A. Wright Jr. 1971-4-4 21 San Mateo 0.6 miles on Bean Hollow Road off of Pescadero Road, ca. 1.0 mi e of Highway 1. About 10 ft off of the n edge of the road. 60 Comment
  CHSC57554  Maianthemum racemosum Diane Mastalir 1988-3-27 2 San Mateo 6.7 mi s of jct Hwy 1 and Hwy 92, 0.3 mi e on Pescadero Rd. 12 Comment
  JROH4695  Maianthemum racemosum John H. Thomas 1964-4-19 10325 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam in among redwoods near creek Comment
  CAS-BOT-BC512108  Maianthemum racemosum subsp. amplexicaule Fred Hemphill 1973-4-8 720 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive 207 Comment
  CAS-BOT-BC512113  Maianthemum racemosum subsp. amplexicaule Ira L. Wiggins 1928-4-14 2916 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC514158  Maianthemum stellatum Lewis S. Rose 1933-4-9 33070 San Mateo Belmont, wooded hills Comment
  CAS-BOT-BC514168  Maianthemum stellatum Philip Wheeler 1965-6-13 s. n. San Mateo Colma Canyon Comment
  CAS-BOT-BC203909  Malacothamnus aboriginum A. A. Heller 1901-7-13 s.n. San Mateo Spring Valley Lake Comment
  JROH2958  Malacothamnus fasciculatus John H. Thomas 1962-6-6 9906 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  CAS-BOT-BC206319  Malacothamnus fremontii J. W. Congdon 1897-7-27 s.n. San Mateo Belmont Comment
  CAS-BOT-BC344965  Malus pumila Peter Rubtzoff 1981-6-30 9656 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  UCD39014  Malva arborea Beecher Crampton 1962-6-11 6510 San Mateo Pacifica, Sharp Park at Mori's Point. Comment
  JROH2965  Malva nicaeensis John H. Thomas 1970-7-5 15672 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
  RSA176523  Marah fabacea John H. Thomas 1961-4-29 1995 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  UC517461  Marah fabacea John Thomas Howell 1933-4-9 10970 San Mateo between Pescadero and Pigeon Pt. Comment
  POM88005  Marah oregana L. R. Abrams 1902-4-13 2341 San Mateo San Andreas Lake. Comment
  CAS-BOT-BC67841  Marsilea vestita George Oberlander 1951-1-1 s.n. San Mateo San Francisco Watershed Reserve Comment
  JROH622  Matricaria discoidea John Hunter Thomas 1981-5-8 20566 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348191  Matricaria discoidea John H. Thomas 1960-6-25 8791 A San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street 7 Comment
  CAS-BOT-BC348194  Matricaria discoidea Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Crocker Hills Comment
  UC674717  Meconella californica Gregory Lyon 1934-3-17 41 San Mateo .75 mi e Skyline Blvd (Buri-Buri Ridge); Caroland's Tract 121 Comment
  CAS-BOT-BC422678  Meconella californica A. D. E. Elmer 1903-4-1 4499 San Mateo San Mateo toward Crystal Springs Comment
  JROH2151  Medicago arabica John H. Thomas 1955-5-6 5010 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH2157  Medicago lupulina John H. Thomas 1967-6-1 12985 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2164  Medicago polymorpha John H. Thomas 1967-5-10 12840 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2172  Medicago polymorpha John Hunter Thomas 1988-4-7 24377 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA101048  Medicago sativa G. Oberlander 1949-9-25 382 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC269479  Melica californica George Oberlander 1950-4-23 808 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  UC1738811  Melica californica var. californica Dean W. Taylor 1988-3-30 9489 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
  POM296543B  Melica imperfecta Lyman Benson 1930-5-12 2126 San Mateo San Mateo County: Lake Searsville. 152 Comment
  JROH5313  Melica torreyana John H. Thomas 1964-4-12 10310 San Mateo Jasper Ridge Biological Preserve, Stanford University. On slope to the east of the dam. Comment
  JROH2802  Melissa officinalis Carol Zabel 1989-8-7 21 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 13, half way from causeway bridge to Leonard's bridge, north side of trail Comment
  JROH2829  Mentha X piperita Ruth Porter 1997-11-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing Comment
  UC1714386  Mentha pulegium U. S. Grant IV 1926-9-6 San Mateo King's Mt. 609 Comment
  JEPS22980  Mercurialis annua V. Duran 1933-3-20 San Mateo near Montara Mountain Comment
  UCD144582  Mercurialis annua Greg Escoto 2014-2-21 s.n. San Mateo San Pedro Valley Park, a county park located at 600 Oddstad Blvd., Pacifica. Visitor Center flower beds. 55 Comment
  RSA190717  Mercurialis annua T. C. Fuller 1967-8-23 16293 San Mateo Coastways Ranch, 0.2 mi. e. of the Coast Hwy (Hwy 1), 0.2 mi. n. of the county line of Santa Cruz Co. in San Mateo Co. Comment
  CAS-BOT-BC438138  Mesembryanthemum nodiflorum T. Winfield 1973-10-10 1222 San Mateo San Francisco Bay: Redwood City Comment
  JROH3907  Micranthes californica John Hunter Thomas 1981-4-5 20279 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  CAS-BOT-BC348578  Micropus californicus var. californicus Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  UCSB17192  Micropus californicus var. californicus Schulte, John 1963-4-26 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mounatins 152 Comment
  SJSU1071  Microseris douglasii C. W. Sharsmith 1951-4-6 5826 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  CAS-BOT-BC349025  Microseris douglasii subsp. douglasii A. D. E. Elmer 1903-5-1 4721 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC349029  Microseris douglasii subsp. douglasii Ned Cahill 1974-4-19 150 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1146  Microseris douglasii subsp. douglasii John Hunter Thomas 1981-5-8 20548 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC50013  Microseris douglasii subsp. tenella E. L. Greene 1886-5-9 San Mateo Belmont Comment
  UC92108  Microseris douglasii subsp. tenella T. S. Brandegee, E. L. Greene 1886-5-9 San Mateo Belmont Comment
  UC92162  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 756 San Mateo Woodside Comment
  RSA0001425  Microseris leucocarpha C. F. Baker 1902-5-4 757 San Mateo Woodside. Comment
  SEINET12269789  Mimulus aurantiacus J. I. McMurphy 1906-1 25 San Mateo Kings Mt., Santa Cruz Mts., Santa Cruz Peninsula Comment
  SEINET12269790  Mimulus aurantiacus Unknown 1932-1 9023 San Mateo Jasper Ridge Comment
  JROH4071  Mimulus aurantiacus var. aurantiacus Richard L. Garber 1971-5-18 21 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4077  Mimulus aurantiacus var. aurantiacus John Hunter Thomas 1980-6-5 19998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA10375  Mimulus aurantiacus var. aurantiacus H. A. Barker 1926-5-1 607 San Mateo Kings Mt. Comment
  UC885697  Mimulus aurantiacus var. aurantiacus E. W. Rust 1907-4-27 127 San Mateo vicinity Stanford University; King's Mountain 213 Comment
  UCSC007764  Mimulus aurantiacus var. aurantiacus Becky Hendricks, Chris Lay 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH4083  Mimulus douglasii Herbert Dengler 1971-3-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC103734  Mimulus grandis C. F. Baker 1902-5-4 759 San Mateo Woodside Comment
  UC886188  Mimulus grandis Alice Eastwood 1912-6-2 210 San Mateo Granada Comment
  POM5176  Mimulus guttatus A. D. E. Elmer 1903-04 4857 San Mateo Crystal Springs Lake. Comment
  JROH4089  Mimulus guttatus D. E. Breedlove 1971-5-5 19328 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Francisquito Creek, 500 yards below Searsville Dam Comment
  RSA10279  Mimulus guttatus H. A. Barker 1927-5-6 663 San Mateo Summit of Kings Mts. Comment
  CAS-BOT-BC388831  Minuartia douglasii Ned Cahill 1974-4-19 148 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1700  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
  CAS-BOT-BC388825  Minuartia douglasii Arthur Spiegler 1952-5-10 80 San Mateo Jasper Ridge above Searsville Lake 457 Comment
  CAS-BOT-BC388834  Minuartia douglasii George Oberlander 1950-4-22 750 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC220661  Monardella villosa H. A. Dutton 1900-2-4 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  RSA176713  Monardella villosa John H. Thomas 1963-6-23 10166 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  CAS-BOT-BC214063  Monardella villosa Lewis S. Rose 1965-6-15 65080 San Mateo South of parking lot near summit, San Bruno Mountain 365 Comment
  CAS-BOT-BC214074  Monardella villosa Mrs. E. C. Sutliffe 1934-7-12 s.n. San Mateo Ocean Shore Road Comment
  CAS-BOT-BC220664  Monardella villosa Y. Henderson 1920-5-31 s.n. San Mateo Searsville Comment
  UC1041059  Monardella villosa subsp. franciscana J. W. Congdon 1901-7-7 San Mateo Road Millbrae to Spring Valley Comment
  CDA40773  Monardella villosa subsp. franciscana G. D. Barbe 1974-6-4 1825 San Mateo Middle Fork San Pedro Creek, southeast of Oddstad Boulevard, Linda Mar District. Coastal part of county. 0 Comment
  RSA184635  Monardella villosa subsp. franciscana Clare B. Hardham 13067 -A San Mateo San Bruno Hills Comment
  JROH2841  Monardella villosa subsp. villosa Raymond R. White 1974-5-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC24050  Monardella villosa subsp. villosa Mary Katherine Wicksten 1971-6-24 115 San Mateo Huddart Park, by park entrance Comment
  JROH2847  Monardella villosa subsp. villosa John Hunter Thomas 1982-6-7 21026 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  CAS-BOT-BC444952  Montia fontana Carl B. Wolf 1929-4-29 3661 San Mateo Santa Cruz Mts. 1 mi. no of summit of La Honda Grade on Skyline Blvd. Comment
  RSA159422  Myosotis latifolia John H. Thomas 1961-5-14 9370 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  UCR198041  Myosotis latifolia S. Seiki 1998-6-1 05 San Mateo San Bruno Mountain, city of San Bruno, c. 10 yards from Skyline College parking lot 192 Comment
  CAS-BOT-BC101789  Myrica californica J. H. Thomas 1962-3-24 9838 San Mateo Isenberg Ranch near Langley Hill Comment
  JROH2692  Myriophyllum aquaticum John H. Thomas 1976-5-19 18143 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2695  Myriophyllum aquaticum John Hunter Thomas 1983-5-31 22318 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1101504  Myriophyllum sibiricum Herbert L. Mason and Verne Grant 1946-8-28 13079 San Mateo Sag Pond N of San Francisco County Prison. Comment
  CDA5313  Myriophyllum spicatum subsp. spicatum G. D. Barbe, Tom Palmer, M. Keffer, J. Reppas 1978-11-8 2469 San Mateo At south end of Pilarcitos Lake at the spillway. 0 Comment
  CAS-BOT-BC260240  Nassella pulchra Javier Penalosa 1963-3-30 2713 San Mateo San Bruno Mountain. N of Randolph Drive at Hillside Boulevard in South San Francisco 91 Comment
  CAS-BOT-BC60476  Nasturtium officinale Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountains. Lower part of Colma Canyon. Comment
  JROH1570  Nasturtium officinale John H. Thomas 1967-6-1 12979 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC60475  Nasturtium officinale Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountains. Crocker Avenue. Comment
  SEINET10496814  Navarretia atractyloides Mary Susan Taylor 1978-8-30 Taylor 1871 San Mateo Comment
  JROH3198  Navarretia heterodoxa John Pelton 1958-6-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA95822  Navarretia heterodoxa L. S. Rose 1953-6-29 53044 San Mateo Emerald Lake, hills w. of Redwood City 91 Comment
  JROH3209  Navarretia squarrosa John H. Thomas 1973-6-10 16815 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1537487  Navarretia squarrosa Gordon H. True Jr. 1936-6-14 506 San Mateo s of Salada Beach 365 Comment
  UC796712  Navarretia squarrosa Ira L. Wiggins 1949-7-2 12197 San Mateo Pescadero Beach Comment
  JROH2755  Nemophila John Hunter Thomas 1992-4-7 25130 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Indian grinding rock. Comment
  POM65449  Nemophila menziesii var. menziesii A. D. E. Elmer 1903-04 4737 San Mateo Cemeteries Comment
  CAS-BOT-BC219473  Nemophila parviflora Alice Eastwood 1933-5-14 18849 San Mateo Woodside, woods near Schillings place Comment
  JROH2743  Nemophila parviflora var. parviflora Herbert Dengler 1967-4-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR3596  Notholithocarpus densiflorus Wm. Horn Jr. 1963-8-26 630826- 01 San Mateo 7 mi. south of Skyline Blvd. - Half Moon Bay [Hwy 92] junction on Skyline (State Route 5) 610 Comment
  CAS-BOT-BC140430  Oemleria cerasiformis John H. Thomas 1974-5-9 17327 San Mateo San Pedro Valley, Northern part of county, inland from Pacifica 152 Comment
  CAS-BOT-BC140436  Oemleria cerasiformis D. E. Breedlove 1974-5-13 36201 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  JROH3704  Oemleria cerasiformis John H. Thomas 1958-2-15 6983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA112471  Oemleria cerasiformis E. A. Dudley 1904-3-3 s.n. San Mateo Portola Valley, Santa Cruz Mts. Comment
  RSA77093  Oemleria cerasiformis D. D. Keck 1932-3-6 1396 San Mateo Near La Honda, Santa Cruz Mountains. Comment
  UC311169  Oemleria cerasiformis A. D. E. Elmer Mar 1903 4579 San Mateo Woodside Comment
  JROH284  Oenanthe sarmentosa L. R. Abrams 1919-8-20 7349 San Mateo Jasper Ridge Biological Preserve, Stanford University; head of Searsville Lake Comment
  CHSC57090  Oenothera elata subsp. hookeri Steven Triano 1988-5-24 209 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  UC2061401  Oenothera elata subsp. hookeri H. W. Johansen 1958-5-18 23 San Mateo Coast Hwy 1, S of Pescadero Comment
  RSA303928  Oenothera elata subsp. hookeri Jim R. Shevock 1970-11-25 549 San Mateo Coastal Strand 8 Comment
  SEINET200711  Orobanche californica subsp. californica L. M. Newlon 1919-9-7 68 San Mateo Pillar Point northern end of Half Moon Bay Comment
  JEPS121488  Orobanche fasciculata Adam C. Schneider with C. Matt Guilliams 2013-5-17 189 San Mateo Crystal Springs Reservoir Comment
  JROH5801  Orobanche fasciculata John Rawlings 2017-6-12 2102 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 12 on bank just west of first footbridge. 108 Comment
  JROH3088  Orobanche uniflora John H. Thomas 1968-5-3 14444 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC238396  Orthocarpus Charles Piper Smith 1950-5-15 50143 San Mateo Pescadero Creek Bridge - Highway 1; 3.9 miles south Comment
  POM49738  Orthocarpus densiflorus L. R. Abrams 1902-5-11 2455 San Mateo Crystal Lake. Comment
  SEINET12270178  Orthocarpus densiflorus Unknown 1932-1 8982 San Mateo on way to Gov. Rolph Estate Comment
  POM126837  Orthocarpus erianthus var. roseus R. L. Pendleton 1907-4-20 618 San Mateo Ocean View. 122 Comment
  RSA155567  Orthocarpus erianthus var. roseus L. S. Rose 1961-4-5 61034 San Mateo San Bruno Mountains. 366 Comment
  SEINET12265143  Orthocarpus lithospermoides G. A. McCallum 1933-1 s.n. San Mateo in Spring Valley Comment
  RSA184904  Orthocarpus pusillus L. S. Rose 1965-3-25 65011 San Mateo San Bruno Mountains, north end. 122 Comment
  POM287588  Osmorhiza berteroi Lyman Benson 1930-5-3 2115 San Mateo Woods, above Woodside, Santa Cruz Mtns. 366 Comment
  UC571124  Oxalis albicans subsp. pilosa Herbert L. Mason 1927-4-23 3677 a San Mateo between La Honda and Pescadero Summit of rd Comment
  RSA130338  Oxalis oregana M. N. paulson 1915-4-10 s.n. San Mateo Kings Mountain. Comment
  UCD18546  Oxalis oregana Roman Gankin 1950-7-9 15 San Mateo west side of the Peninsula Coast Range, 4 miles from La Honda, off San Mateo Memorial Park Rd, redwood belt. 30 Comment
  UC175966  Packera breweri A. A. Heller 1907-5-23 8565 San Mateo back of San Mateo (on the Half Moon Bay road) Comment
  JROH5340  Panicum miliaceum subsp. miliaceum Ann Lambrecht 2000-9-11 1 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek. Comment
  LA14373  Parapholis incurva A. Hornay; 1932-5-29 sn San Mateo San Bruno Comment
  JROH5346  Paspalum distichum John H. Thomas 1978-9-24 19340 San Mateo Jasper Ridge Biological Preserve, Stanford University. East end of dam. 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
  UCD88912  Paspalum distichum W. R. Dudley 1903-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Searsville Lake. Comment
  JROH4103  Pedicularis densiflora John H. Thomas 1959-4-5 7663 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA209451  Pedicularis densiflora R. L. A.; 1902-3-16 2278 San Mateo Woodside 60.0 Comment
  RSA401968B  Pedicularis densiflora A. C. Life 1924-2-22 14599 San Mateo Kings Mt. Redwood Park. Huckleberry trail. Comment
  RSA681600  Pedicularis densiflora Annuschka Deb 1989-4-7 80 San Mateo Page Mill Road, About 2 miles from Skyline Blvd., Palo Alto/ Los Altos Hills Comment
  CAS-BOT-BC7097  Pedicularis dudleyi Adolph Daniel Edward Elmer 1903-6-1 4289 San Mateo Pescadero Creek - Iverson's Place Comment
  CAS-BOT-BC207023  Pelargonium vitifolium J. H. Thomas 1949-6-4 589 San Mateo Along coast, 1.4 miles S of road leading to Pescadero. Comment
  CAS-BOT-BC207027  Pelargonium vitifolium Rimo Bacigalupi 1922-3-29 s.n. San Mateo Roadside between Pigeon Pt. and Arroyo de los Frijoles Comment
  CDA4422  Pelargonium vitifolium T. C. Fuller 1960-10-5 5198 San Mateo Along old highway right-of-way, Highway 1, 2.5 miles south of Pebble Beach State Park. 0 Comment
  POM203868  Pelargonium vitifolium J. T. Howell 1932-12-21 10864 San Mateo Near Pescadero. Comment
  CAS-BOT-BC69253  Pellaea andromedifolia George Oberlander 1949-5-24 s.n. San Mateo San Andreas Valley, San Francisco Watershed Reserve Comment
  SEINET4555767 Image available Pellaea andromedifolia John P. Young 1925-1-9 San Mateo Burlingame Comment
  CDA35479  Pennisetum villosum Ed Finley 1992-11-1 PDR# 1013531 San Mateo South San Francisco; north of Oyster Point Blvd., Southern Pacific Railroad right-of-way. 0 Comment
  CAS-BOT-BC327980  Pentachaeta alsinoides John H. Thomas 1961-4-29 9184 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto. 182 Comment
  CAS-BOT-BC330498  Pentachaeta bellidiflora J. H. Thomas 1974-4-11 17133 San Mateo SE of Canada Road and Edgewood Road, NW of Woodside. 152 Comment
  JROH106  Pentagramma triangularis subsp. triangularis John H. Thomas 1955-5-6 4983 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH311  Perideridia kelloggii John H. Thomas 1975-7-31 17981 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC419386  Persicaria punctata Roxana S. Ferris 1945-9-25 11107 San Mateo At Pedro Point, State Highway #1 Comment
  JROH1165  Petasites frigidus var. palmatus Paul Heiple 2007-3-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; NW of Leonard's Bridge along Trail 13 Comment
  UC1206459  Petasites frigidus var. palmatus Roxana S. Ferris 1918-3-30 750 San Mateo 1 mi above Evans Creek; Peters Creek Comment
  JROH4172  Petunia parviflora W. R. Dudley 1909-10-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  UC1301150  Phacelia californica Helen K. Sharsmith 1963-2-16 5141 San Mateo lower slopes of mt. above Daly City; San Francisco Bay Region, San Bruno Mountain 106 Comment
  UC306571  Phacelia californica A. D. E. Elmer April, 1903 4855 San Mateo Crystal Springs Reservoir Comment
  POM65455  Phacelia californica A. D. E. Elmer 1903-04 4855 San Mateo Crystal Springs Lake. Comment
  JEPS2263  Phacelia ciliata var. ciliata Inez Ray Smith 1919-3-25 San Mateo Burlingame Comment
  UC672334  Phacelia divaricata Herbert L. Mason 1927-4-23 3687 San Mateo roadside between La Honda and Pescadero Creek Comment
  RSA128862  Phacelia divaricata W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Lake Comment
  OBI13755  Phacelia malvifolia Lewis S. Rose 1965-5-3 65057 San Mateo San Bruno Mtn, Colma Cyn 61 Comment
  UC206190  Phacelia malvifolia Katharine Brandegee San Mateo Montara Point Comment
  CAS-BOT-BC258931  Phalaris aquatica John Thomas Howell 1954-7-8 30009 San Mateo Skyline Blvd. above San Bruno Comment
  CAS-BOT-BC258934  Phalaris aquatica Cecilia Murray 1963-7-23 s.n. San Mateo Portola Valley Comment
  CHSC56636  Phalaris aquatica Steven Triano 1988-5-24 176 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
  JROH5358  Phalaris aquatica John Hunter Thomas 1979-5-22 19577 San Mateo Jasper Ridge Biological Preserve, Stanford University. In parking lot. Comment
  UC650502  Phalaris californica Ira L. Wiggins 1928-4-22 2943 San Mateo Moss Beach Comment
  UCD88577  Phalaris californica P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  SEINET11695751  Phalaris californica Unknown 1962-6-11 6487 San Mateo 5 mi W of Belmont at junction of Ralston Avenue & Skyline Boulevard, foot of western slope of Pulgas Comment
  SEINET10657416  Phalaris minor Robert V. Bradshaw 1922-4-30 Bradshaw 2675 San Mateo Sandhill road near Searsville Lake Comment
  JROH2768  Pholistoma auritum var. auritum John Hunter Thomas 1981-5-5 20540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC171182  Phoradendron serotinum subsp. tomentosum Paul Arnaud 1941-5-3 s.n. San Mateo Jefferson Avenue in hills, Redwood City Comment
  CAS-BOT-BC251003  Phyllostachys bambusoides Elizabeth McClintock; Paul Reeberg 1989-3-14 s.n. San Mateo San Bruno Mountains. Near base of Old Quarry Road, Colma Canyon 121 Comment
  CAS-BOT-BC142180  Physocarpus capitatus Margaret A. Barry 1937-5-15 112 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC142186  Physocarpus capitatus Walter Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  UC762978  Physocarpus capitatus R. F. Hoover 1941-4-23 4902 San Mateo San Mateo Creek below Crystal Springs Dam Comment
  SD37695  Physocarpus capitatus Edith A. Purer 1933-5-9 3604 San Mateo Stevens Creek Comment
  SEINET3819247 Image available Physocarpus capitatus Lewis S. Rose 1939-5-5 39093 San Mateo San Mateo Canyon. 46 Comment
  SEINET12151537  Pickeringia montana J. I. McMurphy 1906-1 50 San Mateo King's Mtn., Santa Cruz Mtns 457 Comment
  RSA18288  Pickeringia montana var. montana Carl B. Wolf 429 San Mateo East slope of Kings Mt. Comment
  RSA12771  Pinus radiata C. B. Wolf 1934-11-9 6230 San Mateo Ano Nuevo Point to Pigeon Point; extend 1-2 miles south here 46 Comment
  JEPS82405  Piperia elegans Roger Raiche 1983-8-20 30644 San Mateo Shelter Cove, above old railroad grade San Pedro Point Area 12 Comment
  JROH4768  Piperia michaelii Toni Corelli 2002-6-24 246 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  CAS-BOT-BC228123  Plagiobothrys chorisianus E. L. Greene 1902-3-30 429 San Mateo Crystal Springs Lake Comment
  POM216313  Plagiobothrys chorisianus D. D. Keck 1933-5-11 2294 San Mateo Montara Light House and Radio Station Comment
  RSA320763  Plagiobothrys chorisianus Robert A. Norris 1984-3-21 4650 San Mateo along trail in saddle between Parking Lot (and summit) and Blue Blossom Hill, San Bruno Mountains 305 Comment
  RSA589903  Plagiobothrys chorisianus W. R. Dudley 1894-4-21 s.n. San Mateo Near Cyrstal Springs Reservoir Comment
  SD39907  Plagiobothrys chorisianus var. chorisianus Edith A. Purer 1933-7-27 5392 San Mateo Two miles south of Pigeon Point. Comment
  JROH1409  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1967-4-28 12726 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1422  Plagiobothrys nothofulvus John H. Thomas 1968-4-19 14291 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1425  Plagiobothrys nothofulvus John H. Thomas 1970-4-4 15542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389766  Plagiobothrys tenellus R. D. Hennessey 1964-4-26 s.n. San Mateo Area where Pilarcitos Creek empties into ocean 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
  CHSC39820  Plantago Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  HSC16818  Plantago coronopus R. E. Jones 1966-4-4 35 San Mateo Ano Nuevo Beach Comment
  SBBG25091  Plantago coronopus D. Myrick 1966-6-11 1449 San Mateo approach to Pescadero along Pescadero Crk Comment
  CHSC24897  Plantago erecta B. A. Rosene 1976-4-18 1 San Mateo Ca. 2.4 km nw of entrance to California State Game Refuge. 182 Comment
  CHSC39821  Plantago erecta Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH3108  Plantago erecta John H. Thomas 1956-4-7 5616 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH3111  Plantago erecta John H. Thomas 1974-4-4 17084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3117  Plantago erecta John Hunter Thomas 1981-4-23 20483 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3120  Plantago erecta John Hunter Thomas 1982-4-28 20871 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3126  Plantago erecta John Hunter Thomas 1992-4-29 25172 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM61501  Plantago erecta A. D. E. Elmer 1903-04 4795 San Mateo San Bruno Hills. Comment
  RSA191937  Plantago erecta Robert F. Thorne, Percy C. Everett 1963-6-9 32220 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain. 335 Comment
  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
  JROH5882  Plantago lanceolata J. C. Gaither Jr. 1982-4-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; inside Sand Hill Road gate near old motorcycle racetrack Comment
  UCD164599  Plantago major Peter Rubtzoff; Roman Gankin 1975-9-11 8371 San Mateo San Bruno Mountains. Pond NW of and across old Guadalupe Road from 'Saddle' area (which is located on N side of Guadalupe Canyon Parkway, W of Radio Road junction). Comment
  JEPS22008  Plantago maritima var. californica G. Thomas Robbins 1958-6-9 3872 San Mateo about 0.5 mi s Pescadero Point (above the beach at Pebble Beach); Pebble Beach Comment
  CAS-BOT-BC92020  Platystemon californicus Lewis S. Rose 1933-5-17 33170 San Mateo Redwood City. Comment
  UC766305  Plectritis macrocera R. F. Hoover 1941-4-23 4908 San Mateo Redwood City Comment
  CAS-BOT-BC255562  Poa annua John H. Thomas 1971-5-2 15868 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC255563  Poa annua W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Mountain Peninsula. By road from Pescadero to San Gregorio Comment
  CAS-BOT-BC255567  Poa annua George Oberlander 1949-4-30 112 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  JROH5400  Poa annua John H. Thomas 1977-2-20 18466 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5618  Poa bulbosa subsp. vivipara John Rawlings 2014-5-3 1219 San Mateo Jasper Ridge Biological Preserve, Stanford University. At downhill side of trail 14 about midway between dam and road C, near the lone Amelanchier utahensis. 98 Comment
  CAS-BOT-BC243125  Poa secunda subsp. secunda Roxana S. Ferris 1921-3-20 2174 San Mateo Road over divide from Alpine Creek to Pescadero Creek 304 Comment
  CAS-BOT-BC244245  Poa unilateralis G. L. Stebbins, Jr. 1943-4-8 3349 San Mateo San Bruno Hills, 1 mile E of Daly City Comment
  CAS-BOT-BC244249  Poa unilateralis David D. Keck 1932-5-6 1477 San Mateo Hillsides above Millbrae Highlands Comment
  UC23972  Polemonium carneum J. Burtt Davy 1895-4-20 1040 San Mateo Pilarcitos Comment
  RSA120735  Polygala californica S. S. Tillett, I. Sternback 1956-6-24 531 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  CAS-BOT-BC173595  Polygonum arenastrum Peter Rubtzoff 1975-10-11 8421 A San Mateo Pond northwest of and across Old Guadalupe Road from Saddle area (which is located on north side of Guadalupe Canyon Parkway west of Radio Road junction). Comment
  CAS-BOT-BC414105  Polygonum aviculare subsp. aviculare J. H. Thomas 1949-10-16 1145 San Mateo Just north of outlet of San Gregorio Creek Comment
  CAS-BOT-BC414109  Polygonum aviculare subsp. aviculare George Oberlander 1949-7-24 316 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  POM312912  Polygonum lapathifolium H. L. Mason 1927-10-4 4133 San Mateo Mouth of Waddell creek, Ano Nuevo Point. Comment
  CAS-BOT-BC109236  Polygonum paronychia John H. Thomas 1954-6-11 4285 San Mateo About 0.25 mile north of Pigeon Point Light House along low coastal bluffs. Comment
  RSA18362  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach, S of Pescadero Comment
  RSA3888  Polygonum paronychia I. L. Wiggins 1929-7-4 3795 San Mateo Pescadero Beach Comment
  JEPS50633  Polygonum persicaria W. L. Jepson 1923-10-18 10250 San Mateo hills w Colma (toward ocean) Comment
  CAS-BOT-BC76945  Polypodium californicum H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  JROH5939  Polypodium californicum John Rawlings 2017-2-22 1959 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trailside rock outcrop, low end of Buckeye Alley, Trail 9 117 Comment
  JROH83  Polypodium californicum John Hunter Thomas 1981-2-14 20229 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  SJSU2297  Polypodium californicum C. W. Sharsmith 1950-4-16 6626 San Mateo seaward rim of coastal bluff near Pescadero Point near Pescadero Comment
  CAS-BOT-BC76908  Polypodium californicum W. R. Dudley 1897-1-1 s.n. San Mateo Santa Cruz Mountain Peninsula - by crossing of Butano Cr. below Sinnott's Comment
  CAS-BOT-BC76911  Polypodium californicum W. R. Dudley 1896-2-16 s.n. San Mateo Santa Cruz Mountain Peninsula - Devil's Canyon, Black Mountain Comment
  UCD136938  Polypodium californicum Lewis S. Rose 1964-2-6 64001 San Mateo Kings Mountain. 609 Comment
  CAS-BOT-BC72062  Polypodium calirhiza Ira L. Wiggins 1939-11-5 s.n. San Mateo Corte Madera Creek about 1/2 mile below the Rolph Place Comment
  CAS-BOT-BC72111  Polypodium scouleri L. R. Abrams 1926-5-26 11217 San Mateo San Bruno Hills near Daly City Comment
  UC42914  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Canyon 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
  JROH5645  Polypogon interruptus John Rawlings 2014-5-28 1249 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Up-stream edge of low flow crossing of San Francisquito Creek. 81 Comment
  UC39742  Polypogon interruptus Michener and Bioletti 1893-6-20 133 San Mateo L. Pilarcitos Comment
  CHSC57112  Polypogon monspeliensis Steven Triano 1988-5-24 196 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  JROH5439  Polypogon monspeliensis H. J. Dengler 1961-7-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek not far from where it trends east from Jasper Ridge. Comment
  CAS-BOT-BC237586  Polypogon viridis J. H. Thomas 1958-8-1 7369 San Mateo About 0.25 mile W of center of Pescadero Comment
  CAS-BOT-BC6609  Polystichum dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Near bridge, Peter's Creek, Santa Cruz Mts. Comment
  SBBG51403  Polystichum dudleyi J. Doty 1969-3-27 609 San Mateo N side of St Hwy 84, ca. 50' W of Bridge No 35-165, ca. 6 mi E of St Hwy 1 Comment
  UC397065  Polystichum dudleyi unknown 1929-1 San Mateo 8 mi by road above Pescadero (Pescadero Creek) Comment
  CAS-BOT-BC76612  Polystichum munitum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Base of Quarry 2 Comment
  UCR248356  Polystichum munitum Peter Rubtzoff 1987-8-26 9844 San Mateo San Bruno Mountain, East Fork Colma Creek Canyon 244 Comment
  CAS-BOT-BC76643  Polystichum munitum Roman Gankin 1987-11-6 9885 San Mateo San Bruno Mountains - saddle area on north side of Guadelupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC76649  Polystichum munitum Roxana S. Ferris 1921-3-20 2108 San Mateo Pescadero Creek in canyon, 6 mi. from Pescadero Comment
  RSA157754  Polystichum munitum I. L. Wiggins 1925-5-24 1731 San Mateo Along county road from Pescadero to Pebble Beach along rich swamp land just before coming to the artichoke lands of the American Produce Co. Comment
  CAS-BOT-BC105563  Populus trichocarpa Eric Walther 1919-2-23 s.n. San Mateo Woodside Comment
  JROH3839  Populus trichocarpa John H. Thomas 1966-4-13 11557 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3825842  Potamogeton lucens N. L. Gardner 1933-9-24 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC453836  Potamogeton nodosus Ira L. Wiggins; Roxana S. Ferris 1939-8-2 9292 San Mateo Ano [Ano] Nuevo Point Comment
  CAS-BOT-BC454002  Potamogeton pectinatus W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. E. twin-pond near Mussel Rock. Comment
  CAS-BOT-BC454007  Potamogeton pectinatus W. R. Dudley 1903-7-21 s.n. San Mateo Near Hallidie's, Portola Comment
  JEPS44182  Potentilla anserina subsp. pacifica Alice King 1908-7-25 San Mateo near San Francisco (Moss Beach); Moss Bearch Comment
  CAS-BOT-BC143305  Potentilla hickmanii Mrs. E. C. Sutliffe 1933-5-6 s.n. San Mateo Above Moss Beach Comment
  JROH4673  Prosartes hookeri John H. Thomas 1973-5-5 16761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC516352  Prosartes hookeri C. F. Baker 1903-4-1 5052 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC516357  Prosartes hookeri Ira L. Wiggins 1928-4-14 2912 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC517385  Prosartes smithii L. S. Rose 1931-4-4 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC517389  Prosartes smithii D. D. Davis 1903-5-1 s.n. San Mateo Santa Cruz Peninsula, near summit La Honda Road Comment
  UCD164610  Prunella vulgaris var. lanceolata Peter Rubtzoff 1975-10-24 8430 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In East Fork Colma Creek canyon area. Comment
  CAS-BOT-BC158170  Prunus emarginata Walter Knight; Irja Knight; James Roof 1965-5-15 1198 San Mateo Bitter Cherry Ravine Comment
  CAS-BOT-BC158176  Prunus emarginata Peter H. Raven 1950-4-16 1810 San Mateo Above [Visitation] Visitacion Valley, San Bruno Mts. 182 Comment
  RSA187271  Prunus ilicifolia John H. Thomas 1954-5-28 4239 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  UC861053  Prunus ilicifolia Lewis S. Rose 1937-10-31 37725 San Mateo Hill w of Tanforan 91 Comment
  JROH3748  Prunus ilicifolia subsp. ilicifolia John Hunter Thomas 1981-7-24 20729 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC156354  Prunus virginiana var. demissa Phillip C. Wheeler 1965-5-12 s.n. San Mateo Sierra Point - near canyon Comment
  CAS-BOT-BC156361  Prunus virginiana var. demissa George Oberlander 1949-6-25 245 San Mateo Pilarcitos Canyon 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
  RSA112470  Prunus virginiana var. demissa James I. McMurphy 1906-4-28 16 San Mateo Corte de Madera Creek. Santa Cruz Mtns. Comment
Read comments
Dec 13 2015
  CAS-BOT-BC357122  Pseudognaphalium luteoalbum Fred Hemphill 1973-3-1 622 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC357127  Pseudognaphalium luteoalbum Philip Wheeler 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  JROH776  Pseudognaphalium luteoalbum John H. Thomas 1974-10-29 17649 San Mateo Jasper Ridge Biological Preserve, Stanford University; small peninsula created by drainage channel cut to accomodate water from Corte Madera Cr. Comment
  CAS-BOT-BC357503  Pseudognaphalium ramosissimum Peter Rubtzoff 1975-10-4 8420 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Dry, open slope just north of Guadalupe Canyon Parkway Comment
  CAS-BOT-BC361562  Pseudognaphalium stramineum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC361567  Pseudognaphalium stramineum Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  JROH5642  Pseudognaphalium stramineum John Rawlings 2014-6-7 1251 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few meters east of the Caretaker's Residence 106 Comment
  CAS-BOT-BC361571  Pseudognaphalium stramineum John H. Thomas 1963-5-20 10133 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC85913  Pseudotsuga menziesii J. I. McMurphy 1906-3-9 47 San Mateo Santa Cruz Peninsula, Santa Cruz Mts., King's Mt. 640 Comment
  POM223619  Pseudotsuga menziesii S. S. Berry 1909-3-13 s.n. San Mateo King s Mountain. 640 Comment
  JROH1180  Psilocarphus tenellus John H. Thomas 1963-5-12 10087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1186  Psilocarphus tenellus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC362018  Psilocarphus tenellus George Oberlander No date on label 918 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC362030  Psilocarphus tenellus Walter Knight; Irja Knight 1965-3-21 960 San Mateo San Bruno Mountain. North Power Line Ridge Comment
  CAS-BOT-BC72654  Pteridium aquilinum John H. Thomas 1961-5-7 9253 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC72656  Pteridium aquilinum Elizabeth McClintock 1965-3-28 s.n. San Mateo North Power Line Ridge Comment
  JROH11  Pteridium aquilinum var. pubescens John H. Thomas 1970-5-16 15634 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC421314  Pterostegia drymarioides W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. By grade south slope Montara Mts. Comment
  UCSC007774  Pterostegia drymarioides Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  RSA181251  Pyracantha koidzumii John H. Thomas 1963-10-4 10268 San Mateo Along Bayshore Freeway about 1/2 mile SE of its intersection with HIllsdale Blvd. 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
  CAS-BOT-BC62713  Quercus X chasei B. Bartholomew 1983-8-28 1482 San Mateo 1.2 mi. N of Skyline Blvd. on Page Mill Road on the N side of the road, close to the Santa Clara County line 640 Comment
  CAS-BOT-BC104280  Quercus X morehus James B. Roof 1965-4-25 s.n. San Mateo Sant Bruno Mountain, On top of ridge, N side of road, toward Brisbane power lines Comment
  CAS-BOT-BC61703  Quercus agrifolia W. R. Dudley 1894-11-2 s.n. San Mateo Woodside road Comment
  CAS-BOT-BC61709  Quercus agrifolia Lewis S. Rose 1964-3-23 64012 San Mateo Emerald Lake, w of Redwood City hills 121 Comment
  UC565407  Quercus agrifolia Chas. M. Belshaw 1936-1-25 1457 San Mateo 2.8 mi w Woodside (Kings Mountain road); South Coast Range Comment
  UCD45132  Quercus agrifolia Edmond W. Holm 1993-10-20 s.n. San Mateo California, San Mateo Co.; Huddart Park, near Sequoia Picnic Area; on an east-facing slope, with redwoods and bay trees nearby; tree 15-18 ft. tal, with 2 trunks. Comment
  JROH2458  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-21 15769 San Mateo Jasper Ridge Biological Preserve, Stanford University; at bridge Comment
  JROH2465  Quercus berberidifolia John Rawlings 2007-12-19 0929 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 10 yards northeast of Rd. F in blue oak woodland west of Area C serpentine 178 Comment
  CAS-BOT-BC62308  Quercus chrysolepis Albert Wilson 1936-8-16 s.n. San Mateo Santa Cruz Mts. above Pescadero Comment
  JROH2474  Quercus douglasii John Hunter Thomas 1984-10-22 23487 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2486  Quercus durata var. durata John H. Thomas 1974-6-30 17462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI62796  Quercus durata var. durata Lewis S. Rose 1964-9-5 64068 San Mateo Emerald Lake, W of Redwood City 244 Comment
  CAS-BOT-BC105396  Quercus kelloggii Le Roy Abrams 1898-3-1 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
  JROH2507  Quercus kelloggii John Hunter Thomas 1981-4-27 20501 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB1185  Quercus kelloggii Haller, John 1950-4-26 San Mateo Stanford University, near highway bridge over cree, at edge of golf course Comment
  CAS-BOT-BC62897  Quercus lobata John H. Thomas 1974-4-11 17136 San Mateo SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  JROH2518  Quercus lobata John H. Thomas 1968-4-19 14299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC134783  Quercus wislizeni W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula. In front of Iverson's house near Peter Creek Comment
  CAS-BOT-BC134787  Quercus wislizeni James McMurphy 1909-5-26 s.n. San Mateo San Bruno Mountainin northern part of county. 396 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
  RSA18093  Quercus wislizeni var. wislizeni Carl B. Wolf 1929-4-24 3655 San Mateo south west end of Jasper Ridge, near Searsville Lake Comment
  JROH1201  Rafinesquia californica John H. Thomas 1967-5-31 12937 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA399415  Ranunculus californicus J. Doty 1969-3-26 600 San Mateo 100 yards E of jct Hwy 35 and 92, near summit of Caost Range, San Francisco Peninsula. Comment
  JEPS127797  Ranunculus californicus var. californicus Adam C. Schneider with C. Matt Guilliams 2013-4-7 68 San Mateo Along dirt road running parallel to overhead power transmission lines. Comment
  CAS-BOT-BC378526  Ranunculus californicus var. californicus Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain, grassy slope above Fern Rock Comment
  POM268184  Ranunculus californicus var. cuneatus Lyman Benson 1935-3-10 6257 San Mateo Menlo Park. San Franciso Bay. 30 Comment
  RSA268183  Ranunculus californicus var. cuneatus Ralph Hoffman 1919-4-19 s.n. San Mateo Steep slope above Cyler's Comment
  JROH3482  Ranunculus hebecarpus John H. Thomas 1976-4-19 18083 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail in oakwoodland near dam. Comment
  CAS-BOT-BC83423  Ranunculus lobbii J McMurphy 1904-1-1 s.n. San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC83429  Ranunculus lobbii A. D. E. Elmer 1903-4-1 4734 San Mateo Alpine School House. Comment
  RSA181388  Ranunculus muricatus James I. McMurphy 1909-6-13 s.n. San Mateo San Bruno Hills. Comment
  JROH3497  Ranunculus muricatus John Hunter Thomas 1983-5-23 22238 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near shack side and low-flow crossing Comment
  RSA10410  Ranunculus muricatus Carl B. Wolf 1927-6-15 2164 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  UC827645  Ranunculus orthorhynchus var. bloomeri Lewis S. Rose 1937-4-30 37241 San Mateo Brisbane 6 Comment
  UCD20153  Ranunculus trilobus Phil Greer 2002-4-17 s.n. San Mateo Hwy 101, in Half Moon Bay. Comment
  CAS-BOT-BC74339  Raphanus sativus Lous F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mile north of Pigeon Point and about 39 miles south of San Francisco. Comment
  CAS-BOT-BC74337  Raphanus sativus Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountains. Ridge above Brisbane. Comment
  SJSU1605  Rhamnus alaternus C. D. Duncan 1955-2-17 San Mateo residence, Menlo Park Comment
  CAS-BOT-BC55892  Rhamnus crocea Carl B. Wolf 1927-8-7 717 San Mateo At Schenkel's Camp back of Stanford University Campus. Los Trancos Creek Comment
  JROH3558  Rhamnus crocea Carl B. Wolf 1928-3-16 1540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3562  Rhamnus crocea D. E. Breedlove 1971-5-31 19344 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC389740  Rhododendron occidentale J. Lovelle 1973-7-29 33 San Mateo Pescadero Creek Comment
  CAS-BOT-BC56667  Rhododendron occidentale A. D. E. Elmer 1903-6-1 4298 San Mateo Butano Creek Comment
  CAS-BOT-BC56669  Rhododendron occidentale W. R. Dudley 1908-9-21 s.n. San Mateo Pescadero Cr. (Iversons') Comment
  UC306552  Rhododendron occidentale A. D. E. Elmer 1903-6-1 4298 San Mateo Butano Creek Comment
  CAS-BOT-BC437978  Ribes Eric Walther 1920-5-30 s.n. San Mateo Woodside Comment
  RSA101029  Ribes californicum G. Oberlander 1950-3-18 527 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  RSA44518  Ribes californicum L. S. Rose 1949-3-18 49007 San Mateo Hills west of Belmont. 91 Comment
  CAS-BOT-BC92997  Ribes californicum var. californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont. Comment
  CAS-BOT-BC93000  Ribes californicum var. californicum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Buckeye Canyon. Comment
  CAS-BOT-BC93012  Ribes californicum var. californicum Margaret A. Barry 1938-4-21 224 San Mateo Coal Mine Ridge. Comment
  JROH2638  Ribes californicum var. californicum Duncan M. Porter 1961-2-8 742 San Mateo Jasper Ridge Biological Preserve, Stanford University. N face of sandstone cliff at N end of ridge above San Francisquito Creek. Comment
  JROH2641  Ribes californicum var. californicum John H. Thomas 1968-3-17 14178 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR70845  Ribes californicum var. californicum L. S. Rose 1949-3-18 49007 San Mateo San Francisco Bay Region, Hillsides west of Belmont 91 Comment
  RSA0025027  Ribes divaricatum var. pubiflorum A. D. E. Elmer 1903-05 4511 San Mateo Searsville Lake Comment
  CAS-BOT-BC212830  Ribes menziesii George Oberlander 1950-3-11 495 San Mateo Pilarcitos Canyon Comment
  UC1127451  Ribes menziesii G. E. Sindel 1935-8-13 330 San Mateo San Gregorio Creek Santa Cruz Quadrangle Comment
  CAS-BOT-BC212818  Ribes menziesii W. R. Dudley 1906-6-12 s.n. San Mateo Back of winery, West Union Gulch Comment
  CAS-BOT-BC212836  Ribes menziesii V. F. Hesse 1955-10-10 1716 San Mateo China grade road, 2.3 miles from Butano-Gazos Creek Road 152 Comment
  JEPS121700  Ribes menziesii var. menziesii Stella Yang 2013-5-10 San Mateo Los Troncos Open Space Preserve, Franciscan Loop Trail at Los Troncos Creek crossing Comment
  CAS-BOT-BC144605  Ribes sanguineum var. glutinosum Lewis S. Rose 1955-4-1 55041 San Mateo Kings Mountain 609 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-BC144638  Ribes sanguineum var. glutinosum D. E. Breedlove 1974-5-13 36216 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  UC921843  Ribes sanguineum var. glutinosum Lillian Lockwood 1908-3-9 San Mateo Coal Mine Ridge Comment
  SEINET12220348  Ribes sanguineum var. glutinosum Unknown 1932-1 8919 San Mateo La Honda Road to Sky Line Drive Comment
  CAS-BOT-BC168726  Ribes victoris Eric Walther 1919-8-1 s.n. San Mateo Woodside Comment
  CAS-BOT-BC363086  Rigiopappus leptocladus Ira L. Wiggins 1949-4-23 12050 San Mateo Hillsides above Emerald Lake, back of Redwood City Comment
  CAS-BOT-BC363091  Rigiopappus leptocladus John H. Thomas 1961-5-14 9382 San Mateo Just north of dam on San Mateo Creek 121 Comment
  CAS-BOT-BC363094  Rigiopappus leptocladus Le Roy Abrams 1902-5-4 2401 San Mateo Woodside Comment
  JROH1207  Rigiopappus leptocladus John Hunter Thomas 1990-5-2 24833 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3388620 Image available Rigiopappus leptocladus Lewis S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
  UC429742  Rigiopappus leptocladus L. R. Abrams 1902-5-4 240 San Mateo Woodside Comment
  CAS-BOT-BC6127  Romanzoffia suksdorfii Charles Fuller Baker 1902-4-6 463 San Mateo Crystal Springs Lake Comment
  SEINET11560757  Rorippa curvisiliqua N. L. Gardner 560 San Mateo San Francisco Peninsula, Merced Lake. Comment
  CHSC59705  Rorippa nasturtium-aquaticum Jan M. Karaz 1979-5-28 82 San Mateo 2.5 mi west of Hwy 280 toward San Francisco Bay on Farm Hill Blvd, along Stulsaft Creek in Stulsaft Park. 3 Comment
  CAS-BOT-BC389728  Rosa J. Lovelle 1973-8-19 127 San Mateo Pomponio Canyon Comment
  CAS-BOT-BC389669  Rosa californica M. Wicksten 1969-6-24 s.n. San Mateo Huddart Park, Miwok area Comment
  JROH3756  Rosa californica Toni Corelli 2007-8-29 335 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 1 just before first redwood grove, above San Francisquito Creek 80 Comment
  CAS-BOT-BC146703  Rosa gymnocarpa Ira L. Wiggins 1928-4-14 2922 San Mateo Alpine Creek Road Comment
  JROH3763  Rosa gymnocarpa var. gymnocarpa John Hunter Thomas 1989-5-11 24738 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY335771  Rosa piscatoria A. D. E. Elmer 05 1903 4923 San Mateo Pescadero Comment
  UCD23294  Rosa rubiginosa Alan T. Whittemore 1976-5-29 112 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 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-BC152870  Rubus parviflorus Walter Knight; Irja Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  RSA128601  Rubus parviflorus var. velutinus Peter H. Raven 1950-4-30 1982 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  HSC19689  Rubus spectabilis P. A. Murphy 1965-4-15 12 San Mateo 3 mi. from Half Moon Bay on Higgin's Canyon Rd. Comment
  UC12986  Rubus spectabilis J. Burtt Davy 1895-4-21 1061 San Mateo Pilarcitos Creek 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-BC157088  Rubus ursinus Robert Robertson 1954-5-1 129 San Mateo Near San Gregorio Creek 6 Comment
  CAS-BOT-BC157102  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6050 San Mateo Montara Mt. above Pt. San Pedro Comment
  CAS-BOT-BC157103  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6050 San Mateo Montara Mt. above Pt. San Pedro Comment
  CAS-BOT-BC157107  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CDA33681  Rubus ursinus D. G. Kelch, D. A. Weinstein 2011-3-13 11 .055-B San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  RSA152260  Rubus ursinus I. L. Wiggins 1925-04 1660 San Mateo On Kings Mtn Rd 3/4 mile above Woodside. Comment
  RSA89757  Rubus ursinus Philip A. Munz 1954-8-4 19913 San Mateo Montara. Comment
  UCR12025  Rumex acetosella Coleta A. Lawler 1964-4-19 55 San Mateo 4.5 miles east of Half Moon Bay; Pilarcitos Rd, 0.5 mi NE jct Half Moon Bay Rd. 76 Comment
  CAS-BOT-BC422088  Rumex acetosella E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Top of ridge, east of Nike station. Comment
  RSA17951  Rumex acetosella Carl B. Wolf 1927-6-4 s.n. San Mateo Summit of La Honda Grade (Pollen for Dr. Malsger - San Francisco) San Mateo County Comment
  JROH5595  Rumex crispus John Rawlings 2013-6-13 1189 San Mateo Jasper Ridge Biological Preserve, Stanford University. West end of the shallow depression known as the Semaphore Grass Meadow. 122 Comment
  JROH3305  Rumex pulcher John H. Thomas 1967-6-1 12964 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC433823  Rumex pulcher Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Ridge above Buckeye Canyon Comment
  JROH3314  Rumex salicifolius Toni Corelli 2006-8-9 320 San Mateo Jasper Ridge Biological Preserve, Stanford University; road E near intersection of Trail 14 118 Comment
  CAS-BOT-BC433996  Rumex salicifolius W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. E. shore of N. pond, Crystal Springs Res. Comment
  JROH2211  Rupertia physodes John H. Thomas 1971-5-30 15955 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2217  Rupertia physodes John H. Thomas 1977-4-19 18534 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2220  Rupertia physodes John Hunter Thomas 1981-5-5 20542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD27758  Rupertia physodes Carl B. Wolf 1927-5-31 414 San Mateo North end of Searsville Lake. Comment
  UC279598  Ruppia maritima W. A. Setchell San Mateo Laguna de Salada Comment
  JEPS128162  Rytidosperma penicillatum Eric Wrubel 2012-7-1 NPS 42 San Mateo Golden Gate National Recreation Area. Rancho Corral de Tierra, Spine Trail. Comment
  SEINET11941059  Salicornia depressa Unknown 1933-1 10460 San Mateo Shanty Town, near Belmont, San Fransisco Bay Comment
  CAS-BOT-BC103342  Salix bonplandiana W. R. Dudley 1894-4-21 s.n. San Mateo By bridge above San Mateo Comment
  OBI75779  Salix exigua Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 122 Comment
  UC492364  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1932-7-4 640 San Mateo 4/10 mi e. Pescadero (Butano Creek Rd.) Comment
  UC492372  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1932-7-4 640 San Mateo 4/10 mi e. Pescadero (Butano Creek Rd.) Comment
  CAS-BOT-BC125369  Salix lasiandra var. lasiandra W. R. Dudley 1902-9-21 s.n. San Mateo Near Crystal Springs Lake Comment
  JROH3878  Salix lasiandra var. lasiandra John Hunter Thomas 1981-4-23 20495 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  CAS-BOT-BC107129  Salix lasiolepis A. D. E. Elmer 1903-3-1 4875 San Mateo Searsville Lake Comment
  CAS-BOT-BC107131  Salix lasiolepis C. R. Ball; G. W. Hendry 1931-2-22 14 San Mateo San Gregorio, near sea level - in arroyo near San Gregorio Creek, 100 m. from ocean Comment
  CAS-BOT-BC107134  Salix lasiolepis David D. Keck 1932-1-24 1356 San Mateo Portola 150 Comment
  CAS-BOT-BC107142  Salix lasiolepis L. R. Abrams 1915-3-13 5162 San Mateo Near junction of San Francisquito and Los Trancos Creeks, about 2 miles from Stanford University Comment
  CAS-BOT-BC166940  Salix lasiolepis Peter Rubtzoff 1976-3-14 8446 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  RSA184897  Salix lasiolepis L. S. Rose 1965-3-8 65004 San Mateo Searsville Lake. 122 Comment
  RSA788839  Salix lasiolepis Peter Rubtzoff 1976-3-14 8445 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  UC1618081  Salix lasiolepis Donald G. Nelson 1939-6-14 618 San Mateo 3 mi. s of San Francisco Co, line (Skyline Blvd. due e. of Mussel Rock on coast, large permanent Sag Pond) Comment
  UCD164611  Salix lasiolepis Peter Rubtzoff 1975-10-24 8433 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH3854  Salix lasiolepis John H. Thomas 1968-3-17 14176 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC107249  Salix lasiolepis var. bigelovii Peter Rubtzoff; Patricia Fallon 1987-8-26 9842 San Mateo San Bruno Mountains, Saddle area on north side of Guadelupe Canyon, Parkway west of Radio Road junction; northwestern part of the area along old Guadelupe Road, Upper part of East Fork Colma Creek canyon. Comment
  CAS-BOT-BC108255  Salix lasiolepis var. bigelovii Peter H. Raven 1950-4-30 1981 San Mateo Along a stream in the Montara Mts. ca 1/2 mile N. of Montara 91 Comment
  CAS-BOT-BC108259  Salix lasiolepis var. bigelovii Walter Knight; Irja Knight 1964-3-16 s.n. San Mateo San Bruno Point - San Bruno Mountain Comment
  CAS-BOT-BC124485  Salix lasiolepis var. lasiolepis Josephine D. Randall 1906-3-18 360 San Mateo San Francisquito Creek near Stanford University Comment
  SBBG33942  Salix lucida subsp. lasiandra L. S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  POM176878  Salix scouleriana W. R. Dudley 1903-5-1 s.n. San Mateo From Peters Creek above Iverson's into Old Mill. Comment
  UC846970  Salix scouleriana Lewis S. Rose 1938-10-16 38303 San Mateo Skyline Blvd. and La Honda Rd. Comment
  CAS-BOT-BC126488  Salix sitchensis Walter Knight; Irja Knight 1965-3-28 s.n. San Mateo Near junction of Colma Creek and April Brook Comment
  CAS-BOT-BC126520  Salix sitchensis W. R. Dudley 1904-3-7 70 San Mateo Bear Gulch, Santa Cruz Mts. 213 Comment
  JEPS8413  Salvia spathacea Rimo Bacigalupi with L. Constance and C. R. Bell 1951-3-25 3204 San Mateo near San Francisco (Colma Canyon); Colma Canyon 137 Comment
  POM46725  Sambucus microbotrys A. D. E. Elmer 1903-05 4663 San Mateo Butano Creek Comment
  CAS-BOT-BC246021  Sambucus nigra subsp. caerulea Phillip C. Wheeler 1965-5-12 s.n. San Mateo Ravine at Sierra Point, San Bruno Mountain Comment
  CAS-BOT-BC246024  Sambucus nigra subsp. caerulea Daniel Cohen 1953-6-3 107 San Mateo Los Trancos Woods Comment
  JROH1669  Sambucus nigra subsp. caerulea John H. Thomas 1963-6-23 10171 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236455  Sambucus racemosa subsp. racemosa James B. Roof 1966-3-27 s.n. San Mateo Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC236459  Sambucus racemosa subsp. racemosa A. D. E. Elmer 1903-5-1 4663 San Mateo Butano Creek Comment
  CAS-BOT-BC236465  Sambucus racemosa subsp. racemosa J. H. Thomas 1949-6-4 596 San Mateo 1 mile E. of Pescadero Comment
  UCSC005903  Sanicula Randall Morgan 1983-2-15 s.n. San Mateo From large extended population in small ravine between El Corte Madera Creek and Bogess Creek (N of San Gregorio Rd.) Comment
  UC579535  Sanicula arctopoides H. S. Yates 1935-2-3 5102 San Mateo 0.5 mi se of Pigeon Point 30 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
  CAS-BOT-BC223322  Sanicula bipinnatifida Margaret A. Barry 1938-3-6 230 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC223323  Sanicula bipinnatifida A. D. E. Elmer 1903-4-1 4817 San Mateo Lake San Andreas Comment
  CAS-BOT-BC223327  Sanicula bipinnatifida John H. Thomas 1958-3-19 7067 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  JROH325  Sanicula bipinnatifida John Hunter Thomas 1977-4-28 18561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC56963  Sanicula crassicaulis Steven Triano 1988-5-24 181 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
  JROH334  Sanicula crassicaulis John H. Thomas 1971-5-30 15978 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA407366  Sanicula crassicaulis Lyman Benson 1935-5-5 6522 San Mateo Lake Searsville 152 Comment
  CAS-BOT-BC166668  Satureja douglasii Peter Rubtzoff 1975-10-24 8429 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; (tributary of East Fork Colma Creek). San Bruno Mountains. Comment
  POM204321  Satureja douglasii I. L. Wiggins 1929-7-4 3778 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  RSA8352  Satureja douglasii L. S. Rose 1933-6-9 s.n. San Mateo 3 miles W of San Bruno. Comment
  RSA320754  Schedonorus arundinaceus Robert A. Norris 1984-5-9 4729 San Mateo By Olivet Memorial Park Throughway, Colma. Comment
  CAS-BOT-BC218936  Schinus molle John H. Thomas 1960-6-25 8788 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street 7 Comment
  CAS-BOT-BC111415  Schoenoplectus acutus var. occidentalis Rimo Bacigalupi 1922-5-25 s.n. San Mateo Emerald Lake, Redwood City 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
  RSA32340  Schoenoplectus pungens Alice S. Mulford 1945-7-17 s.n. San Mateo Moss Beach Comment
  SEINET11754562  Schoenoplectus pungens Unknown 1932-1 9115 San Mateo Half Moon Bay 0 Comment
  CAS-BOT-BC176408  Scirpus cernuus var. californicus Peter Rubtzoff; Roman Gankin 1975-5-21 7970 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UC841022  Scirpus maritimus Lewis S. Rose 1935-8-13 35565 San Mateo Salada 3 Comment
  JROH4424  Scirpus microcarpus John Rawlings, Carol Zabel, 2006-5-3 0904 San Mateo Jasper Ridge Biological Preserve, Stanford University. Downstream towards Searsville Lake from the footbridge near northwest terminus of Trail 12. 107 Comment
  POM312852  Scirpus microcarpus H. L. Mason, Verne Grant 1946-8-28 13093 San Mateo 1 mile west of San Bruno between Santa Cruz and Daly City on Highway 5 Comment
  CAS-BOT-BC519004  Scoliopus bigelovii George Oberlander 1949-4-17 87 San Mateo Pilarcitos Canyon Comment
  RSA69519  Scoliopus bigelovii D. D. Keck 1932-2-12 1359 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 305 Comment
  SEINET12050520  Scoliopus bigelovii F. H. Utech 1988-1 88 -039 San Mateo 0.5 mi from jct of Kings Mt. Rd & CA 35 on former enroute to Woodside, near Skyline Hiking Trail 580 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
  SEINET12051466  Scoliopus bigelovii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -223 San Mateo 0.5 mi from junction of Kings Mt Rd & CA 35, on former enroute to Woodside, near Skyline Trail head 580 Comment
  CHSC1898  Scrophularia californica H. Summers 1929-5-10 San Mateo Moss Beach. Comment
  JROH4125  Scrophularia californica John H. Thomas 1974-4-25 17194 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2887  Scutellaria tuberosa John Hunter Thomas 1986-5-8 24029 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38739  Scutellaria tuberosa Janet Turner 1933-4-19 3711 San Mateo Emerald Lake Comment
  CAS-BOT-BC59061  Sedum spathulifolium G. B. Rossbach 1939-6-18 756 San Mateo Ledge near 755 on SE slope of North Peak, Montara Mts. 396 Comment
  CAS-BOT-BC363401  Senecio aronicoides Margaret Barry 1937-5-23 149 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC363384  Senecio aronicoides W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. By upper road, San Mateo Ravine Comment
  CAS-BOT-BC363396  Senecio aronicoides Le Roy Abrams 1901-5-11 1612 San Mateo Colma Comment
  UC1219871  Senecio glomeratus J. H. Thomas 1961-5-7 9275 San Mateo San Bruno Mountain 304 Comment
  CAS-BOT-BC363735  Senecio hydrophilus Alice Eastwood; John Thomas Howell 1938-6-26 6058 San Mateo Near Pescadero Comment
  JEPS37223  Senecio hydrophilus W. L. Jepson 1910-8-18 4162 San Mateo Butano Creek Comment
  RSA152057  Senecio sylvaticus John H. Thomas 1961-5-7 9272 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  JROH5834  Senecio vulgaris Ann Lambrecht 2014-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. End of Trail 20 (Douglas Iris road) Comment
  UCD135850  Senecio vulgaris J. D. Skoss 1948-7-25 45 San Mateo San Vicente, near Montara. Comment
  CAS-BOT-BC80298  Sequoia sempervirens J. H. Thomas 1949-10-16 1141 San Mateo Along La Honda Creek, about 0.7 miles north of La Honda Comment
  CAS-BOT-BC85783  Sequoia sempervirens unspecified 1901-1-26 s.n. San Mateo Santa Cruz Peninsula, Coal Mine [Canon] Canyon Comment
  LA6407  Sequoia sempervirens David D. Keck; 1932-2-14 1368 San Mateo Santa Cruz Mountains, La Honda road, E-slope of Coast Range above Searsville Lake 300.0 Comment
  SEINET10612343  Sequoia sempervirens Paulson 1914-10-21 PAULSON s.n. 1914 San Mateo Kings Mountain near woodside. Herbarium of Leland Stanford Jr. University. Plants of the Santa Cruz Mountain Penninsula. Comment
  SEINET3876359 Image available Sequoia sempervirens Barbara Schneider 1963-2-23 24 San Mateo Intersection of El Camino and Alma St.; 0 30 Comment
  JROH3828  Sherardia arvensis John H. Thomas 1956-4-7 5611 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3833  Sherardia arvensis John H. Thomas 1974-4-4 17077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA8253  Sidalcea diploscypha Elmer I. Applegate 1895-5-11 56 San Mateo Hills above Stanford University. [county not specified] Comment
Read comments
Dec 13 2015
  SD39295  Sidalcea diploscypha Edith A. Purer 1933-5-30 3636 San Mateo Between Woodside and Spring Valley Lakes. Comment
  CHSC109021  Sidalcea malviflora R. F. Thorne; Percy C. Everett 1963-6-9 32221 San Mateo Central Western; San Francisco Bay area; on top of San bruno Mountain on Kambhatka Point near the TV tower. Comment
  UCR231146  Sidalcea malviflora R. F. Thorne, Percy C. Everett 1963-6-9 32221 San Mateo Central Western; San Francisco Bay area, on top of San Bruno Mountain on Kamchatka Point near the TV tower 335 Comment
  RSA18461  Sidalcea malviflora subsp. malviflora Carl B. Wolf 1927-6-29 547 San Mateo South of Pebble Beach near Pescadero. Comment
  POM151335  Silene californica C. F. Baker 1903-6-30 33522 San Mateo Crystal Springs Comment
  CAS-BOT-BC386848  Silene gallica Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC386858  Silene gallica H. A. Dutton 1900-4-29 s.n. San Mateo Woodside Serpentine Comment
  JROH1739  Silene gallica John Hunter Thomas 1983-4-28 21775 San Mateo Jasper Ridge Biological Preserve, Stanford University; at low-flow crossing Comment
  RSA477822  Silene scouleri Glenn A. Gorelick 1967-5-12 s.d. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC175275  Silene verecunda Phillip C. Wheeler 1965-5-11 s.n. San Mateo Southwest canyon below NBC towers Comment
  JROH1234  Silybum marianum John Hunter Thomas 1989-5-9 24707 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC364853  Silybum marianum W. R. Dudley 1893-6-8 s.n. San Mateo Santa Cruz Peninsula. Cedro Cottage, Stanford University Comment
  CAS-BOT-BC74987  Sinapis arvensis Fred Hemphill 1973-4-8 615 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC74989  Sinapis arvensis Fred Hemphill 1973-5-6 752 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  POM273726A  Sisymbrium officinale Lyman Benson 1935-5-5 6533 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  JROH4440  Sisyrinchium bellum John H. Thomas 1964-4-19 10322 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near Searsville end of ridge Comment
  RSA790890  Sisyrinchium californicum Peter Rubtzoff 1975-5-21 7969 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  UC1134665  Smilacina racemosa G. E. Sindel 1935-8-2 342 San Mateo Harington Creek Santa Cruz Quadrangle (head) Comment
  UC1577337  Smilacina racemosa Cynthia DiGiovanni 1971-4-4 19 San Mateo Alpine Road Menlo Park (foothills) Comment
  UC142705  Smilacina stellata C. F. Baker 1903-4-8 1915 San Mateo San Andreas Lake Comment
  JEPS108625  Smilacina stellata W. Roderick San Mateo 2.1 mi W (down) from Skyline Blvd, SE of Half Moon Bay Comment
  SEINET5571657  Smilacina stellata H. S. Gentry 1931-1 3 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  UCR129777  Smilacina stellata var. sessilifolia C. B. Wolf 1927-4-3 00250 San Mateo Santa Cruz Mtns., 1 mile above La Honda 183 Comment
  JROH4175  Solanum americanum John H. Thomas 1974-10-29 17641 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JEPS12105  Solanum douglasii W. I. Follett 1934-2-18 10 San Mateo 2.6 mi n of Pigeon Point (beside the main highway) Comment
  SEINET5571744  Solanum douglasii H. S. Gentry 1931-1 88 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UCR247942  Solanum elaeagnifolium John Beall 2010-6-9 PDR- 1621662 San Mateo Brisbane; abandoned train tracks 10 m west of Tunnel Ave., south of Beatty Rd. One half mile south of Bayshore Caltrain station, near San Mateo/San Francisco county line 6 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
  CAS-BOT-BC58479  Solanum umbelliferum F. Hemphill 1973-5-6 747 San Mateo San Carlos. N of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC58482  Solanum umbelliferum R. C. Rollins 1941-3-16 2944 San Mateo E slope of Kings Mountain about 6 miles W of Woodside, Santa Cruz Mts. Comment
  RSA295084  Solanum umbelliferum Robert A. Norris, John L. Inase 1981-1-18 4093 San Mateo Near Ano Nuevo Point. (near Santa Cruz Co. line) Comment
  CAS-BOT-BC422310  Soleirolia soleirolii Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo San Bruno Mountain. Crocker Avenue Comment
  SD27769  Solidago canadensis subsp. elongata Carl B. Wolf 1927-6-29 568 San Mateo on the coast 3 mi. S. of San Gregorio. Comment
  UCR256294  Solidago canadensis subsp. elongata Peter Rubtzoff 1978-9-16 9271 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  RSA97497  Solidago canadensis subsp. elongata L. S. Rose 1954-8-29 54113 San Mateo Trinitas. 30 Comment
  UC1070247  Solidago elongata G. E. Sindel 1935-7-22 292 San Mateo 1/4 mi s Pescadero; Santa Cruz Quad. Comment
  UC1070254  Solidago elongata T. Tyrrell 1928-9-26 12 San Mateo Pomponio Creek Santa Cruz Quad., , Plot #13 91 Comment
  CAS-BOT-BC365748  Solidago spathulata John H. Thomas 1961-5-12 9331 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS29413  Solidago spathulata L. R. Heckard 1961-7-16 1260 San Mateo near summit San Bruno Mt. (ne-facing slope to the ne of transmitting station KQED) 304 Comment
  JEPS6048  Solidago spathulata V. F. Hesse 1954-7-30 1341 San Mateo near Pebble Beach 15 Comment
  CAS-BOT-BC365188  Solidago velutina subsp. californica Irja Knight; Walter Knight 1963-10-7 333 San Mateo San Bruno Mountain. Cow Trough Ravine Comment
  JROH1245  Soliva sessilis John Hunter Thomas 1980-5-8 19960 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
  RSA60662  Soliva sessilis I. L. Wiggins 1950-5-20 12352 San Mateo Pescadero Beach. Comment
  UC909336  Soliva sessilis Ira L. Wiggins 1950-5-20 12352 San Mateo above Pescadero Beach Comment
  CAS-BOT-BC365923  Soliva sessilis Le Roy Abrams 1902-5-4 2428 San Mateo Woodside Comment
  UCSB24002  Sonchus Sandra Hutchinson 1964-3-22 7 San Mateo collected at 908 Patricia Avenue, in San Mateo 908 Patricia avenue, and San Mateo Comment
  CAS-BOT-BC374697  Sonchus oleraceus Ira L. Wiggins 1979-8-26 22247 San Mateo Alley between Central and Woodland Avenues, running from Pope to Gilbert Streets, Menlo Park Comment
  CAS-BOT-BC374710  Sonchus oleraceus Walter Knight; Irja Knight 1964-4-25 691 San Mateo San Bruno Mountain. Upper part of ravine adjacent to Radio Rd. Comment
  JROH1260  Sonchus oleraceus John H. Thomas 1964-11-29 10534 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville Dam Comment
  UCSC007783  Sonchus oleraceus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  RSA126377  Sorghum bicolor John H. Thomas 1959-11-19 8513 San Mateo Near Bayshore & University Avenue, East Palo Alto Comment
  JROH5523  Sparganium eurycarpum var. eurycarpum John H. Thomas 1964-6-3 10412 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake near bridge. Comment
  CAS-BOT-BC236624  Spartina foliosa Le Roy Abrams 1900-10-1 1015 San Mateo Cooley Landing Comment
  RSA23203  Spartina foliosa I. L. Wiggins 1938-11-25 9213 San Mateo Along Dumbarton Bridge approach Comment
  UCD93001  Spartina foliosa Ira L. Wiggins 1938-11-25 9213 San Mateo along Dumarton Bridge approach. Comment
  UCD99177  Spergula arvensis J. D. Skoss 1948-7-25 51 San Mateo San Vicente Canyon near Montara. Comment
  SEINET7062814  Spergula arvensis subsp. arvensis A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach west of Pescadero. UTM Zone 10, 551765mE, 4121313mN. (WGS84/NAD83). 0 Comment
  UC1537317  Spergula arvensis subsp. arvensis Gordon H. True Jr. 1937-3-31 613 San Mateo field s. of Daly City 182 Comment
  CAS-BOT-BC390208  Spergularia bocconi Alice Eastwood 1937-7-25 18888 San Mateo Pebble Beach, Pescadero Comment
  CDA24131  Spergularia macrotheca T. C. Fuller 1967-6-13 15939 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  CAS-BOT-BC390455  Spergularia macrotheca var. macrotheca J. H. Thomas 1949-6-4 584 San Mateo 1.4 miles S. of road leading to Pescadero Comment
  CAS-BOT-BC390459  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1937-10-1 615 San Mateo Near Burlingame Comment
  CAS-BOT-BC390465  Spergularia macrotheca var. macrotheca Ira L. Wiggins 1938-7-9 8932 San Mateo Cliffs near Pigeon Point light house Comment
  CAS-BOT-BC390469  Spergularia macrotheca var. macrotheca David D. Keck 1933-5-11 2297 San Mateo Montara Light House and Radio Station Comment
  CAS-BOT-BC390919  Spergularia marina John Thomas Howell 1924-9-28 662 San Mateo At the Leslie Salt Refinery Comment
  UCR160927  Spergularia rubra George K. Helmkamp, E. A. Helmkamp 2001-6-2 6793 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-BC390699  Spergularia rubra Ira L. Wiggins 1974-7-27 22108 San Mateo Crest of northerly bank of San Francisquito Creek, opposite 1455 Woodland Avenue, Menlo Park Comment
  CAS-BOT-BC390703  Spergularia rubra Philip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. In Crocker Hills near the Cow Palace Comment
  RSA0097346  Spergularia rubra var. perennans Lyman Benson 1934-7-29 6113 San Mateo Moss Beach. Pcific Ocean watershed. 15 Comment
  POM151816  Spergularia salina C. F. Baker 1902-10-20 1859 San Mateo Searsville. Comment
  HSC100920  Sphacele calycina E. L. Greene 1887-6-12 San Mateo San Mateo. Comment
  UC1537555  Stachys bullata Gordon H. True Jr. 1936-6-14 503 San Mateo canyon s Saledo Beach (near coast) 152 Comment
  UCR121546  Stachys bullata George K. Helmkamp, E. A. Helmkamp 1999-6-28 4962 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
  POM63420  Stachys chamissonis A. D. E. Elmer 1903-07 4760 San Mateo Pilarcitos Stone Dam. Comment
  JROH2919  Stachys pycnantha John H. Thomas 1973-6-15 16832 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0109086  Stachys pycnantha W. R. Dudley 1902-9-21 s.n. San Mateo Near Crystal Springs Lake. Comment
  SEINET13948127 Image available Stachys rigida Lewis S. Rose 1950-1 50139 San Mateo Emerald Lake region, alt ca 800 ft. hills W of Redwood City 244 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
  RSA785892  Stachys rigida subsp. quercetorum Peter Rubtzoff 1977-6-21 9063 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon, near upper rim. Comment
  JEPS127878  Stachys rigida var. quercetorum Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 298 San Mateo Crystal Springs Reservoir Comment
  JROH2892  Stachys rigida var. quercetorum John H. Thomas 1967-5-12 12884 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC5588  Stachys rigida var. quercetorum A. A. Heller 1907-5-28 8581 San Mateo Back of San Mateo on the Half Moon Bay road, about 3 miles beyond San Mateo 91 Comment
  NY380638  Stachys viarum A. A. Heller 1907-5-28 8581 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  HSC31059  Stebbinsoseris heterocarpa Kenton Chambers 1952-5-24 418 San Mateo 1.2 mi. towards Woodside from Skyline junction of Woodside-La Honda Rd. Comment
  JEPS51122  Stellaria media W. L. Jepson 1920-3-14 8427 San Mateo Burlingame Comment
  JROH1778  Stellaria media John H. Thomas 1967-3-13 12411 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC398986  Stellaria nitens Elizabeth McClintock 1965-4-25 s.n. San Mateo Power Line Ridge Comment
  RSA18514  Stephanomeria virgata C. B. Wolf 1927-7-14 606 San Mateo Summit of Kings Mountain Rd. Comment
  RSA223602  Stephanomeria virgata Elizabeth McClintock, Walter Knight, I. Knight 1967-8-1 s.n. San Mateo S side of Ridge Road, about 200 yards S of Parking Lot. San Bruno Mtns. Comment
  JROH5319  Stipa lepida Duncan M. Porter 1960-4-22 649 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch Comment
  JROH5324  Stipa lepida John Hunter Thomas 1981-5-25 20618 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5386  Stipa miliacea var. miliacea John Hunter Thomas 1985-5-21 23662 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  SD175782  Stipa tenuissima L. Kuwahara 2006-6-1 1359399 San Mateo East side of Skyline Blvd., 0.75 mile south of State Highway 92. 359 Comment
  RSA20106  Stuckenia pectinata I. L. Wiggins 1935-6-29 8051 San Mateo Pescadero Creek, about 1 mile west of Pescadero. Comment
  UC306701  Stylomecon heterophylla A. D. E. Elmer April, 1903 4921 San Mateo Spanishtown Comment
  RSA152163  Symphoricarpos albus var. laevigatus John H. Thomas 1961-5-7 9267 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC75077  Symphoricarpos albus var. laevigatus C. F. Baker 1901-9-5 238 San Mateo w side Kings Mt. Comment
  CAS-BOT-BC237063  Symphoricarpos mollis W. R. Dudley 1893-5-27 s.n. San Mateo Kings Mt., Santa Cruz Range, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC344896  Symphyotrichum chilense Peter Rubtzoff; Roman Gankin 1975-9-11 8377 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains Comment
  CAS-BOT-BC99055  Symphyotrichum chilense Peter H. Raven 1957-9-1 11294 San Mateo 1.1. mi. s. of Pigeon Point Lighthouse Comment
  CAS-BOT-BC99056  Symphyotrichum chilense David D. Keck 1931-10-5 1282 San Mateo 1 mile north of Salada Beach 91 Comment
  CAS-BOT-BC99060  Symphyotrichum chilense Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain - West Power Line Ridge at Ridge Road Comment
  CAS-BOT-BC99084  Symphyotrichum chilense W. R. Dudley 1895-9-21 s.n. San Mateo Menlo Park - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC99085  Symphyotrichum chilense W. R. Dudley 1899-12-2 s.n. San Mateo Near the coast between Pebble Beach and White House Creek - Santa Cruz Mountain Peninsula Comment
  CDA34524  Tamarix parviflora T. Hyland 2011-3-1 San Mateo CalTrans right of way 100 meters west of gate leading to Cascade Creek mouth. 0 Comment
  UCR256289  Taraxacum officinale Peter Rubtzoff 1976-5-22 8553 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  RSA0036456  Taraxacum officinale Peter Rubtzoff 1977-4-14 8943 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. East Fork Colma Creek canyon area at the NW corner of Fog Forest, San Bruno Mountains. Comment
  SEINET4142897  Taraxia ovata James Tanno 1972-4-29 160 San Mateo Pillar Point near Princeton.; 0 6 Comment
  RSA119855  Tauschia kelloggii W. R. Dudley 1892-5-14 s.n. San Mateo Pass, near head of Calera Valley. Comment
  CAS-BOT-BC447472  Tellima grandiflora A. D. E. Elmer 1903-6-1 4702 San Mateo Pescadero Comment
  UC1127673  Tellima grandiflora H. S. Yates 1935-5-8 5213 San Mateo 1.5 mi s Mindego Hill; Santa Cruz Quad. 335 Comment
  CAS-BOT-BC447477  Tellima grandiflora W. R. Dudley 1894-5-27 s.n. San Mateo Near top of King's Mt. 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
  UCSB18684  Thalictrum fendleri var. polycarpum Schulte, John 1963-4-14 San Mateo top of Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC399842  Thalictrum polycarpum A. D. E. Elmer 1903-6-1 4425 San Mateo Butano Creek Comment
  CAS-BOT-BC399847  Thalictrum polycarpum Peter Rubtzoff 1953-5-14 1350 B San Mateo Pilarcitos Creek Canyon 1 to 2 miles downstream from Pilarcitos Lake Comment
  CAS-BOT-BC399852  Thalictrum polycarpum Alice Eastwood 1922-5-30 11330 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC399843  Thalictrum polycarpum W. R. Dudley 1906-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Whipple Road - West of Redwood City Comment
  POM16722  Thermopsis californica var. californica A. D. E. Elmer 1903-05 4824 San Mateo Crystal Springs Lake. Comment
  RSA100996  Thermopsis californica var. californica G. Oberlander 1950-4-16 745 San Mateo East of Lower Crystal Springs Lake, San Francisco Watershed Reserve. 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-BC66665  Thysanocarpus curvipes John H. Thomas 1971-4-24 15775 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66666  Thysanocarpus curvipes John H. Thomas 1971-4-25 15785 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1598  Thysanocarpus curvipes John Hunter Thomas 1982-4-28 20870 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1615  Thysanocarpus curvipes John Hunter Thomas 1988-4-2 24358 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC66680  Thysanocarpus curvipes Dr. A. Kellogg; W. G. W. Harford 1868-1-1 49 San Mateo Unspecified. Comment
  CAS-BOT-BC447581  Tiarella trifoliata var. unifoliata L. R. Abrams 1907-8-26 s.n. San Mateo Spring near King's 762 Comment
  JROH402  Torilis nodosa John Hunter Thomas 1989-5-5 24656 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH386  Torilis nodosa John Hunter Thomas 1981-5-14 20572 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old shack riders shack Comment
  JROH407  Torilis nodosa John Hunter Thomas 1992-5-14 25224 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  CAS-BOT-BC81497  Torreya californica William R. Dudley 1894-4-24 s.n. San Mateo near La Honda, Santa Cruz Mts. Comment
  CAS-BOT-BC81499  Torreya californica Ira L. Wiggins 1945-5-5 11161 San Mateo along La Honda Creek about 1 mile above La Honda 152 Comment
  SEINET3876264 Image available Torreya californica Ira L. Wiggins 1945-5-5 11161 San Mateo Along La Honda Creek about 1 mile above La Honda.; 0 152 Comment
  JROH4755  Toxicoscordion fremontii John H. Thomas 1956-4-7 5604 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  RSA681673  Trichostema lanatum Deb Annuschka 1990-11-16 388 San Mateo Yerba Buena Herbarium. Comment
  SD39136  Trientalis europaea var. latifolia Edith A. Purer 1933-5-16 3603 San Mateo Alpine Road Comment
  JROH3392  Trientalis latifolia John H. Thomas 1974-5-3 17248 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH5897  Trientalis latifolia M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail by San Francisquito Creek, near Redwoods Comment
  POM287405  Trientalis latifolia Lyman Benson 1928-4-21 s.n. San Mateo Stanford University, Mt. Range: Santa Cruz; River: San Francisquito Creek. 91 Comment
  UC630750  Trifolium albopurpureum var. albopurpureum A. A. Heller 1907-5-23 8554 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  UC631539  Trifolium albopurpureum var. albopurpureum A. A. Heller 1907-5-23 8554 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  POM226873  Trifolium barbigerum L. R. Abrams 1914-4-2 5080 San Mateo Menlo Heights. Comment
  POM278639  Trifolium depauperatum Lyman D. Benson 1930-5-1 2064 San Mateo Stanford University. 122 Comment
  UC485415  Trifolium depauperatum var. amplectens R. L. Pendleton 1907-4-20 628 a San Mateo Colma 121 Comment
  UC631216  Trifolium depauperatum var. amplectens P. B. Kennedy 1928-5-2 10099 San Mateo e Daly City (hills) Comment
  JROH2270  Trifolium depauperatum var. truncatum John H. Thomas 1966-4-6 11550 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2276  Trifolium depauperatum var. truncatum John Hunter Thomas 1985-4-11 23524 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2232  Trifolium dichotomum John H. Thomas 1967-5-10 12845 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2284  Trifolium fucatum John H. Thomas 1955-5-6 4987 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent grassy slopes Comment
  JROH2300  Trifolium fucatum John Hunter Thomas 1983-4-21 21639 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG39547  Trifolium fucatum L. S. Rose 1970-4-8 San Mateo Black Mtn, W of San Mateo 121 Comment
  SJSU7974  Trifolium fucatum S. H. Anderson 1962-4-15 San Mateo Burlingame Hills Comment
  POM88134  Trifolium fucatum var. fucatum L. R. Abrams 1902-5-4 2424 San Mateo Woodside Comment
  CAS-BOT-BC5350  Trifolium macraei Adolph Daniel Edward Elmer 1903-5-1 4812 San Mateo San Pedro Comment
  CDA27988  Trifolium macraei D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  UCD111316  Trifolium macraei June McCaskill 1954-5-8 292 San Mateo Moss Beach. Comment
  RSA128600  Trifolium macraei Peter H. Raven 1950-4-30 1991 San Mateo Montara Mts. 122 Comment
  UC16630  Trifolium microcephalum F. T. Bioletti May 1892 San Mateo Italian Cemetary San Francisco Comment
  UC311115  Trifolium microcephalum A. D. E. Elmer April, 1903 4856 San Mateo Portola Comment
  POM277910  Trifolium microcephalum Lyman D. Benson 1935-5-5 6524 San Mateo Lake Searsville. 152 Comment
  CDA28004  Trifolium microdon D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JROH2339  Trifolium microdon John H. Thomas 1964-4-19 10316 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  UCSC006098  Trifolium oliganthum Randall Morgan 1996-5-24 2972 San Mateo Pescadero Creek Comment
  SEINET5628487 Image available Trifolium olivaceum Unknown 1907-1 8554 San Mateo Back of San Mateo Comment
  JROH2378  Trifolium variegatum John H. Thomas 1961-4-29 9183 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC006363  Trifolium variegatum Randall Morgan 1995-6-6 2725 San Mateo Group at Bean Hollow State Beach 2.5 mi S of Pescadero Rd. Comment
  UC204145  Trifolium variegatum var. melananthum A. D. E. Elmer May, 1903 4685 San Mateo Portola Comment
  JROH2396  Trifolium willdenovii John H. Thomas 1967-4-28 12720 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM20398  Trifolium willdenovii A. D. E. Elmer 1903-05 4716 San Mateo Belmont. Comment
  RSA6274  Trifolium willdenovii D. D. Keck 1932-6-1 1791 San Mateo Above Woodside on La Honda Rd. E slope of Santa Cruz Mtns. Comment
  SJSU1077  Trifolium willdenovii C. W. Sharsmith 1951-4-7 5828 San Mateo Woodside Hills, 3 mi W of Woodside 182 Comment
  UC485431  Trifolium willdenovii R. L. Pendleton 1907-4-20 609 San Mateo Lake Merced 30 Comment
  CDA28299  Trifolium willdenovii T. C. Fuller 1967-6-13 15942 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  UCSC006366  Trifolium willdenovii Randall Morgan 1995-6-22 2794 San Mateo Ridge W of Waterman Creek Comment
  SJSU15758  Trillium albidum Toni Corelli 2009-3-10 425 San Mateo Gazos Creek Road, San Mateo Coast 18 Comment
  JROH4721  Trillium chloropetalum John H. Thomas 1958-2-15 6981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4727  Trillium chloropetalum John H. Thomas 1974-4-6 17093 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1140924  Trillium chloropetalum W. R. Dudley 1900-3-16 San Mateo by trail n. of Tripp's Store Woodside; Santa Cruz Peninsula, Woodside Comment
  SEINET5577479  Trillium chloropetalum H. S. Gentry 1931-1 1 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  CAS-BOT-BC521068  Trillium chloropetalum var. giganteum C. F. B. 1902-3-30 431 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC521208  Trillium chloropetalum var. giganteum Ira L. Wiggins 1928-4-14 2917 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC133435  Trillium ovatum John Thomas Howell 1924-2-23 267 San Mateo King Mountain Comment
  RSA378212  Trillium ovatum J. Doty 1969-3-26 601 San Mateo State Highway 34, 6 miles north of its junction with State Highway 38. Comment
  JROH4130  Triphysaria eriantha subsp. eriantha W. R. Dudley 1896-3-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ridge east of Searsville Dam Comment
  CAS-BOT-BC238553  Triphysaria floribunda Vincent Jones 1921-4-1 s.n. San Mateo San Bruno hills Comment
  CAS-BOT-BC238563  Triphysaria floribunda W. R. Dudley 1893-5-1 s.n. San Mateo The Santa Cruz Peninsula. North of San Bruno Comment
  CAS-BOT-BC238574  Triphysaria floribunda W. C. McCalla 1925-4-29 3437 San Mateo Along Skyline Blvd., 15 miles south of San Francisco Comment
  JROH4136  Triphysaria pusilla John H. Thomas 1966-4-22 11572 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7067219  Triphysaria pusilla A. G. Vestal 1947-5-10 s.n. San Mateo Up east side of Jasper Ridge. Coordinate datum: NAD27. UTM Zone 10, 568517mE, 4140222mN. Comment
  JEPS40978  Triphysaria pusilla Lewis S. Rose 1965-3-25 65011 San Mateo n end San Bruno Mts.; n end San Bruno Mts. 121 Comment
  JEPS10445  Triphysaria versicolor subsp. versicolor Adele Lewis Grant 1917-5-6 934 San Mateo Pebble Beach 3 Comment
  CAS-BOT-BC389750  Triteleia ixioides subsp. ixioides M. Danielson 1965-5-15 s.n. San Mateo Westward extension of Edgewood Road - Redwood City Comment
  CAS-BOT-BC523100  Triteleia ixioides subsp. ixioides C. F. Leithold 1893-5-27 s.n. San Mateo Santa Cruz Peninsula, road between Woodside and King's Mountain 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
  SJSU9940  Triteleia ixioides subsp. ixioides L. S. Chan 1955-6-4 117 San Mateo Kings Mt Rd, 1.5 mi W of Woodside, E slope Santa Cruz Mts 243 Comment
  JROH4743  Triteleia laxa John H. Thomas 1962-5-31 9892 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near Westridge end of ridge. Comment
  UCSB17660  Triteleia laxa Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  IRVC12855  Triteleia peduncularis Lora Epstein 1967-5-26 43 San Mateo On Woodside Road; 1.5 mi. N of jct with Ridgeway Drive. Comment
  CAS-BOT-BC74062  Turritis glabra Margaret A. Barry 1938-4-28 s.n. San Mateo On Coal Mine Ridge. Comment
  UC1241809  Typha angustifolia Herbert L. Mason 1949-7-7 14031 San Mateo mouth of Pescadero Creek Comment
  JROH5538  Typha latifolia John Hunter Thomas 1982-11-6 21202 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake Comment
  UCSB26557  Ulex europaeus Havlik, Neil 1969-3-27 San Mateo North side of San Bruno Mountain, near the junction of Radio Road and Guadalupe Road Comment
  CAS-BOT-BC91228  Umbellularia californica C. F. Leithold 1901-1-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Canyon near Black Mountain. Comment
  JROH137  Umbellularia californica John H. Thomas 1968-2-11 14143 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH145  Umbellularia californica John H. Thomas 1984-10-22 23488 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM272292  Umbellularia californica Lyman Benson 1931-2-16 2582 a San Mateo Stanford University, San Francisquito Creek. 61 Comment
  RSA15340  Umbellularia californica C. B. Wolf 1927-2-5 151 San Mateo Pilarcitos Lake Comment
  RSA681685  Umbellularia californica Deb Annuschka 1989-2-24 S.N. San Mateo Yerba Buena Herbarium, Woodside. On slope next to path behind potting barn. Comment
  SEINET12102549  Umbellularia californica Unknown 1930-1 7306 San Mateo Comment
  JROH1291  Uropappus lindleyi John Hunter Thomas 1981-4-27 20509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1297  Uropappus lindleyi John Hunter Thomas 1992-5-5 25209 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC404025  Urtica dioica subsp. holosericea Le Roy Abrams 1901-9-1 2218 San Mateo Menlo Park 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-BC412536  Urtica urens John H. Thomas 1968-12-18 14870 San Mateo About 1 mile west of Pescadero toward the coast Comment
  JEPS27348  Vaccinium cespitosum Rimo Bacigalupi with L. R. Heckard and Jim Roof 1961-4-24 7609 San Mateo due n true summit of San Bruno Mt. (directly below and ne of KQED radio power station) 342 Comment
  SJSU6082  Vaccinium cespitosum S. H. Casey 1969-5-18 263 San Mateo Kamtchatka Point, San Bruno Mt Comment
  CAS-BOT-BC199349  Vaccinium ovatum W. R. Dudley 1900-3-16 s.n. San Mateo By stage road from King's Mt. to Spanish town Comment
  CAS-BOT-BC199355  Vaccinium ovatum Josephine D. Randall 1907-4-27 139 San Mateo Kings Mt. Comment
  CAS-BOT-BC199359  Vaccinium ovatum L. R. A. 1902-3-16 2281 San Mateo King's [Kings] Mountain Comment
  CAS-BOT-BC199365  Vaccinium ovatum Elizabeth McClintock 1966-5-1 s.n. San Mateo Kamchatka Point Comment
  CAS-BOT-BC199369  Vaccinium ovatum J. H. Thomas 1949-3-31 203 San Mateo King's [Kings] Mountain Road Comment
  SBBG33994  Vaccinium ovatum L. S. Rose 1969-3-27 San Mateo Kings Mtn Rd, 4 mi W of Woodside 304 Comment
  POM131858  Vaccinium ovatum Stewart H. Burnham 1894-4-29 6701 San Mateo Outer Coast Range. Comment
  RSA187270  Vaccinium parvifolium W. R. Dudley 1908-5-2 s.n. San Mateo Iverson's, upper Pescadero Creek. Comment
  CAS-BOT-BC76138  Vancouveria planipetala A. D. E. Elmer 1903-5-1 4922 San Mateo Iverson's Place. Comment
  CAS-BOT-BC76140  Vancouveria planipetala Dr. E. B. Copeland 1903-5-9 3051 San Mateo Big Basin. Comment
  SD38891  Verbena lasiostachys Cummings, Mc Callum 1933-5-24 3726 San Mateo Open Hills in Spring Valley Comment
  JROH4270  Verbena lasiostachys var. lasiostachys John Hunter Thomas 1990-7-4 24874 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
  UC1252125  Veronica filiformis Mrs. M. C. O'Neil Jr. 1964-5-7 San Mateo 3805 Fernwood Street, San Mateo San Mateo; 3805 Fernwood Street, San Mateo Comment
  JROH4151  Veronica peregrina subsp. xalapensis John H. Thomas 1974-4-25 17218 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS81152  Vicia benghalensis Edward Lee with H. L. Mason 1935-6-16 1527 San Mateo between Ano Nuevo and Franklin Point Comment
  UC1130191  Vicia benghalensis N. K. Carlson 1935-6-28 98 A San Mateo 1 mi w Pigeon Pt.; Santa Cruz Quad. 91 Comment
  JROH2440  Vicia sativa subsp. nigra John Hunter Thomas 1991-4-25 24996 San Mateo Jasper Ridge Biological Preserve, Stanford University; Rattlesnake Rocks Comment
  JROH2446  Vicia sativa subsp. sativa John Hunter Thomas 1980-4-10 19869 San Mateo Jasper Ridge Biological Preserve, Stanford University; by dam Comment
  UCSB8438  Vicia sativa subsp. sativa Haller, John 1950-4-24 San Mateo Near Atherton, 3 miles northwest of Stanford University Comment
  UCSC008143  Vicia sativa subsp. sativa Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UCD108798  Vicia tetrasperma G. K. Helmkamp; E. A. Helmkamp 2001-6-2 6769 San Mateo Central CA coast: Purissima Road. E of Half Moon Bay, 1.9 miles E of CA-1. 168 Comment
  UCR123142  Vicia tetrasperma George K. Helmkamp, E. A. Helmkamp 2001-6-2 6769 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  CAS-BOT-BC264045  Viola adunca Miss E. Cannon 1899-4-21 s.n. San Mateo E of Colma Comment
  CAS-BOT-BC264049  Viola adunca Robert Robertson 1954-5-1 121 San Mateo At Pebble Beach 9 Comment
  UC19259  Viola adunca Ivar Tidestrom 1894-3-24 San Mateo Comment
  POM135230  Viola glabella A. D. E. Elmer 1900-04 2263 San Mateo Kings Mtn. Comment
  JROH4284  Viola ocellata W. R. Dudley 1893-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment