Search Results — 2000 specimen records retrieved (1359 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
  SEINET5726308 Image available Abronia latifolia Louise Lackman 1973-1 33 San Mateo sand dune, ca. 100 feet from shoreline.; Pescadero Beach Comment
  UC577087  Abronia umbellata Lewis S. Rose 1935-10-12 35654 San Mateo Salada 3 Comment
  JROH2957  Abutilon theophrasti Carol Zabel 2006-8-21 62 San Mateo Jasper Ridge Biological Preserve, Stanford University; resident ranger's yard Comment
  JROH1981  Acacia John Hunter Thomas 1983-6-29 22693 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing of San Francisquito Creek Comment
  JEPS15238  Acaena pinnatifida var. californica Rimo Bacigalupi with G. T. Robbins, L. T. Dempster and S. Galen Smith 1956-5-15 5644 San Mateo near summit of first range of hills due w. San Bruno (ca. 1/4 mi. e. of Skyline Blvd.) 137 Comment
  UC14110  Acaena pinnatifida var. californica E. L. Drew Apr. 1888 San Mateo San Pedro Ranch Comment
  UC638681  Acaena pinnatifida var. californica Ethel Crum 1932-4-17 1386 San Mateo South Coast Range, San Gregorio 121 Comment
  CAS-BOT-BC219610  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  RSA0076539  Acanthomintha obovata subsp. duttonii Paul R. Hichborn 1920-6-1 s.n. San Mateo Back of Redwood City. Comment
  RSA0076541  Acanthomintha obovata subsp. duttonii Fay Gilbert 1920-6-1 s.n. San Mateo Back of Redwood City. Comment
  RSA0076542  Acanthomintha obovata subsp. duttonii L. S. Rose 1933-5-17 33171 San Mateo Redwood City. Comment
  RSA116907  Acer macrophyllum W. R. Dudley 1906-6-30 s.n. San Mateo Los Truncos Road, near Los Truncos Dairy Comment
  RSA116908  Acer macrophyllum W. R. Dudley 1906-6-14 s.n. San Mateo San Francisquito Creek, near Cedro Cottage Stanford University Comment
  RSA131268  Acer macrophyllum Josephine Randall 1906-03 s.n. San Mateo San Francisquito Creek near Stanford University Comment
Read comments
Sep 18 2013
  CAS-BOT-BC336918  Acer negundo var. californicum Ira L. Wiggins 1925-4-11 1633 San Mateo Hillside across from Schroder's. One and one half miles about Stanford University. Comment
  HSC2819  Acer negundo var. californicum P. A. Murphy 1965-4-15 22 San Mateo On San Mateo Rd. 2 mi. from Hillsbrough city limits Comment
  CAS-BOT-BC21598  Achillea millefolium Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. Below parking lot. Comment
  JEPS85554  Achillea millefolium Craig Dremann 1986-9-13 335 San Mateo (along Stage road between San Gregorio and Pompanio Creek) San Gregorio; Pompanio Creek Comment
  UCR254762  Achillea millefolium Peter Rubtzoff 1977-6-21 9065 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  HSC23987  Achillea millefolium Mary Katherine Wicksten 1971-6-24 109 San Mateo Huddart Park, side of park entrance Comment
  JROH456  Achyrachaena mollis John H. Thomas 1955-5-6 4981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG34038  Acmispon americanus L. S. Rose 1964-9-5 64071 San Mateo Emerald Lake, W of Redwood City 243 Comment
  JROH2057  Acmispon americanus var. americanus D. E. Breedlove 1971-5-31 19343 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  OBI13045  Acmispon americanus var. americanus Lewis S. Rose 1964-9-5 64071 San Mateo Emerald Lake, W of Redwood City 244 Comment
  JROH2109  Acmispon strigosus John H. Thomas 1961-4-29 9193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2097  Acmispon wrangelianus John H. Thomas 1968-5-3 14445 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15953  Acmispon wrangelianus John Rawlings, Ken Hickman 2016-5-26 1830 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  RSA176544  Actaea rubra subsp. arguta John H. Thomas 1963-5-6 10062 San Mateo Summit of La Honda Road at Skyline Blvd. 610 Comment
  LA207851  Adenostoma fasciculatum David D. Keck; 1932-5-25 1781 San Mateo Hills 2 mi. W. of Belmont Comment
  UC859034  Adenostoma fasciculatum Lewis S. Rose 1932-5-22 32259 San Mateo Belmont Comment
  UCR139358  Adenostoma fasciculatum David D. Keck 1932-5-25 1781 San Mateo San Francisco Bay Region, hills two miles west of Belmont 168 Comment
  JROH3584  Adenostoma fasciculatum var. fasciculatum Richard L. Garber 1971-7-13 40 San Mateo Jasper Ridge Biological Preserve, Stanford University 165 Comment
  POM263664  Adenostoma fasciculatum var. fasciculatum L. S. Rose 1941-6-12 41270 San Mateo Emerald Lake, hills west of Redwood City. 120 Comment
  UC42051  Adiantum aleuticum F. P. McLean 1873-1 San Mateo Pescadero Comment
  JEPS118143  Aeonium simsii Dean W. Taylor with Alison Colwell 2005-5-10 19306 San Mateo Pacifica, sea bluffs between Shelter Cove and Pacifica State Beach 16 Comment
  JROH2708  Aesculus californica John H. Thomas 1971-5-30 15972 San Mateo Jasper Ridge Biological Preserve, Stanford University 120 Comment
  POM136951  Aesculus californica A. D. E. Elmer 1903-06 4258 San Mateo Crystal Springs Lake. Comment
  RSA131267  Aesculus californica Deborah Hichborn 1920-5-20 s.n. San Mateo San Francisquito Creek. Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC29514  Agoseris Elizabeth McClintock 1965-4-25 s.n. San Mateo San Bruno Mountain, summit at Power Line Ridge Comment
  UC1301057  Agoseris apargioides Helen K. Sharsmith 1963-2-16 5148 San Mateo Thornton Beach San Francisco Bay Region, Thornton Beach Comment
  UC29397  Agoseris apargioides var. apargioides F. P. McLean 1873-6-1 San Mateo Searsville Comment
Read comments
Oct 8 2006
  CAS-BOT-BC22976  Agoseris grandiflora var. grandiflora David D. Keck 1932-5-6 1460 San Mateo Belmont Comment
  CAS-BOT-BC22979  Agoseris grandiflora var. grandiflora Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Crocker Hills Comment
  JROH479  Agoseris grandiflora var. grandiflora John H. Thomas 1967-5-31 12936 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH483  Agoseris grandiflora var. grandiflora John H. Thomas 1974-5-29 17401 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH491  Agoseris heterophylla John H. Thomas 1971-4-10 15758 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC15227  Agoseris hirsuta W. R. Dudley 1896-11-14 s.n. San Mateo Santa Cruz Mountain Peninsula, on dam Pelarcitos Creek Comment
  CAS-BOT-BC15240  Agoseris hirsuta Roxana S. Ferris 1921-4-7 2129 San Mateo San Bruno Mountain 213 Comment
  RSA116647  Agoseris hirsuta W. R. Dudley 1893-5-17 s.n. San Mateo Back of Millbrae Comment
  UC311237  Agoseris hirsuta A. D. E. Elmer 1903-4-1 4930 San Mateo Comment
  UCSC008504  Agrostis Randall Morgan 2013-5-24 5527 San Mateo Bean Hollow State Beach, on side of trial, a bit beyond #5526 and well beyond wooden bridge Comment
  UC1100106  Agrostis alba Malcolm A. Nobs and S. Galen Smith 1949-8-25 1550 San Mateo marshes Sharp Park Comment
  CAS-BOT-BC127379  Agrostis exarata A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach near Pescadero. Comment
  JROH5649  Agrostis exarata John Rawlings 2014-5-28 12461246 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry creek bed of San Francisquito Creek at the Dennis Martin site. 71 Comment
  POM207135  Agrostis exarata Copeland 1903-6-10 3333 San Mateo Montara Point. Comment
  UCD52248  Agrostis exarata var. microphylla Collector unknown 1925-6-15 2115 San Mateo Pescadero - Santa Cruz Rd. Comment
  CAS-BOT-BC139461  Agrostis hallii Margaret A. Barry 1937-6-22 177 San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC139465  Agrostis hallii A. D. E. Elmer 1903-6-1 4264 San Mateo Alpine School House. Comment
  SEINET3127762  Agrostis microphylla L. Abrams 1902-5-11 2458 San Mateo Crystal Springs Comment
  JROH4797  Agrostis pallens W. R. Dudley 1903-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake 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
  JROH4803  Agrostis pallens John Rawlings 2013-5-21 1162 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from power poles near path to Rattlesnake Rocks from Rd. D. 133 Comment
  SEINET200165 Image available Agrostis semiverticillata Malcolm A. Nobbs, S. Galen Smith 1949-8-26 1607 San Mateo About 1 mile south of Pigeon Point. Comment
  RSA290667  Agrostis stolonifera Lyman Benson 1937-7-20 8462 San Mateo Menlo Park, San Francisco Bay. Lawn at 736 Partridge Ave. 30 Comment
  UCD53588  Agrostis stolonifera Malcolm A. Nobs; S. Galen Smith 1949-8-25 1550 San Mateo Sharp Park. Comment
  SEINET7594518 Image available Aira caryophyllea A. D. E. Elmer 1903-1 4705 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC138243  Aira caryophyllea var. caryophyllea Fred Hemphill 1973-4-15 674 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC138249  Aira caryophyllea var. caryophyllea John H. Thomas 1958-3-19 7050 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 91 Comment
  UCSC008506  Aira praecox Randall Morgan 2013-5-24 5526 San Mateo Bean Hollow State Beach Comment
  CAS-BOT-BC177089  Albizia lophantha Phillip C. Wheeler 1965-6-8 s.n. San Mateo [Bay shore] Bayshore, cut area Comment
  SEINET12049324  Allium amplectens H. L. Mason 1921-1 s.n. San Mateo Jasper Ridge Comment
  UC1206473  Allium amplectens Le Roy Abrams 1902-5-8 2431 San Mateo Stanford University Comment
  CAS-BOT-BC467293  Allium dichlamydeum Elizabeth McClintock 1965-5-23 s.n. San Mateo Among low shrubs on slope below and east of Nike Station, above April Brook. Comment
  SJSU6178  Allium dichlamydeum S. H. Casey 1969-5-18 246 San Mateo near Fern Rock, San Bruno Mt Comment
  RSA52685  Allium falcifolium I. L. Wiggins 1949-4-23 12049 San Mateo Near Emerald Lakes, west of Redwood City. Comment
  UC766745  Allium falcifolium R. F. Hoover 1941-4-23 4907 San Mateo Redwood City hills Comment
  JROH4567  Allium lacunosum var. lacunosum John Hunter Thomas 1978-4-20 19082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC132025  Allium peninsulare var. franciscanum Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City - Hills - after Hesler farm entrance Comment
  CAS-BOT-BC132026  Allium peninsulare var. franciscanum D. E. Breedlove 1963-5-13 4942 San Mateo On the SE corner of the junction of Crystal Springs Road and Polhemus Road, W of San Mateo Comment
  RSA10362  Allium peninsulare var. franciscanum H. A. Barker 1926-5-5 594 San Mateo Near Searsville Lake Comment
  UC142741  Allium peninsulare var. franciscanum Alice Eastwood 1895-5-31 San Mateo Burlingame Comment
  UC615425  Allium peninsulare var. franciscanum Beryl O. Schreiber 1932-5-29 309 San Mateo Spring Valley Water Company Road Comment
  CAS-BOT-BC475448  Allium serra John H. Thomas 1969-4-24 14905 San Mateo Near Canada College, Redwood City, near Farm Hill Drive. Comment
  RSA15281  Alnus rhombifolia C. B. Wolf 1927-4-3 247 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  JROH173  Amaranthus John H. Thomas 1976-10-16 18420 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fire place ruins downstream. Comment
  SBBG39514  Amaranthus deflexus L. S. Rose 1970-7-26 70079 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  CAS-BOT-BC44923  Ambrosia chamissonis Volney Rattan 1879-1-1 s.n. San Mateo Mouth Redwood Creek Comment
  SEINET11855110  Ambrosia chamissonis Unknown 1932-1 9245 San Mateo Half Moon Bay Comment
  SEINET11855111  Ambrosia chamissonis Unknown 1932-1 9246 San Mateo Half Moon Bay Comment
  RSA175131  Amelanchier pallida Robert F. Thorne 1963-6-9 32232 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower. 335 Comment
  JEPS13156  Ammannia coccinea V. F. Hesse 1955-10-10 1719 San Mateo 4 mi from Pescadero (near Butano road) Comment
  CAS-BOT-BC162063  Ammophila breviligulata Rimo Bacigalupi 1922-3-27 s.n. San Mateo Mouth of Gazos Creek. Comment
  JROH1341  Amsinckia intermedia John Hunter Thomas 1983-4-5 21321 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  NY334934  Amsinckia lunaris A. A. Heller 1907-5-23 8555 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UC1220416  Amsinckia lunaris Jerry Powell 1963-5-3 356 San Mateo s and se facing slopes San Bruno Mountain (north tank hill) Comment
  JROH1355  Amsinckia menziesii John Hunter Thomas 1992-4-23 25162 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  HSC59829  Anagallis arvensis Clark L. Miller 1978-6-15 264 San Mateo 6 mi. S of Half Moon Bay, off Hwy. 1 on Verde Rd. 61 Comment
  UCD14397  Anagallis arvensis Marcy Dickenson 1983-4-23 120 San Mateo San Mateo Co.; on Jasper Ridge, at the Stanford Biological Preserve, within 1 mile of Westridge Road entrance; Comment
  UCD15059  Anagallis arvensis A. Bennett 1977-5-29 40 San Mateo California, San Mateo Co.; 0.7 miles north of Hayne Road intersection along Highway 35 (Burlingane); 60 Comment
  UCSC007718  Anagallis arvensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH3370  Anagallis minima John H. Thomas 1961-4-29 9180 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3372  Anagallis minima John H. Thomas 1968-4-19 14304 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC45186  Anaphalis margaritacea Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain, NW Radio Road Comment
  CAS-BOT-BC45189  Anaphalis margaritacea R. E. Frenkel 1964-8-21 754 San Mateo On Spring Valley Ridge Road at the junction of Spring Valley Ridge and Whiting Ridge Roads, SFWD. 347 Comment
  CAS-BOT-BC391913  Anemone grayi J. H. Thomas 1954-4-15 3905 San Mateo About 1 1/2 mile SW of Searsville Lake 228 Comment
  CAS-BOT-BC221460  Angelica hendersonii H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach near Pescadero Comment
  JROH189  Angelica tomentosa John Hunter Thomas 1986-5-17 24052 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH190  Angelica tomentosa John Hunter Thomas 1989-6-17 24776 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC273181  Anisocarpus madioides Josephine D. Randall 1907-6-29 91 San Mateo Santa Cruz Peninsula. Portola Valley Comment
  CAS-BOT-BC273186  Anisocarpus madioides C. F. B. 1902-5-10 300 San Mateo Kings Mountain Comment
  UC913108  Anisocarpus madioides David D. Keck 1932-5-11 1497 San Mateo above Woodside (on La Honda road, e slope of Santa Cruz Mtns.); Santa Cruz Mtns. 228 Comment
  CAS-BOT-BC273185  Anisocarpus madioides W. R. Dudley 1894-7-7 s.n. San Mateo Santa Cruz Mountain Peninsula. Summit - head of Bear Gulch Road Comment
  JROH509  Anthemis cotula John Hunter Thomas 1983-6-29 22698 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR101615  Anthriscus caucalis George K. Helmkamp, E. A. Helmkamp 1998-5-16 3745 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  JROH3608  Aphanes occidentalis John Hunter Thomas 1982-3-12 20806 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306538  Apiastrum angustifolium A. D. E. Elmer June, 1903 4461 San Mateo southern end of Crystal Springs Lake Crystal Springs Lake Comment
  UCSC008173  Apiastrum angustifolium Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC1285700  Aponogeton distachyos Rolf Benseler 1966-4-10 San Mateo 100 yards s of King Drive (formerly Chinese Cemetery Road), e side of Highway No. 5, Skyline Boulevard, northern end of San Mateo County King Drive; e side Highway No. 5, Skyline Boulevard Comment
  JROH3401  Aquilegia formosa John Hunter Thomas 1985-4-22 23539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC405857  Aquilegia formosa Josephine Randall 1908-4-12 s.n. San Mateo King's Mt. Road Comment
  CAS-BOT-BC405899  Aquilegia formosa Phillip Wheeler 1965-3-28 s.n. San Mateo Columbine Gulch Comment
  SD1681  Aquilegia formosa Ulysses S. Grant IV June 1925 San Mateo La Honda Comment
  CAS-BOT-BC17318  Arabis blepharophylla Walter Knight; Irja Knight 1965-3-21 967 San Mateo San Bruno Mountains. On ridge near Brisbane power lines. Comment
  CAS-BOT-BC17328  Arabis blepharophylla A. D. E. Elmer 1903-4-1 4936 San Mateo Santa Cruz Peninsula. San Bruno Hills. Comment
  CAS-BOT-BC17334  Arabis blepharophylla Peter H. Raven 1967-2-18 20828 San Mateo Off Crocker Avenue, Daly City, just south of San Francisco County Line. Comment
  CAS-BOT-BC17335  Arabis blepharophylla Reed Clark Rollins 1941-3-22 2950 San Mateo San Bruno Hills, 2 miles southeast of Daly City. 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
  RSA0125508  Arabis blepharophylla Lincoln Constance, R. Bacigalupi, C. R. Bell 1951-3-25 3369 San Mateo Southeast side of Colma Canyon 61 Comment
  RSA0125533  Arabis blepharophylla D. W. Taylor 1988-3-30 9477 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain. 237 Comment
  RSA0125763  Arabis glabra C. B. Wolf 1927-7-14 609 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC171636  Aralia californica Eric Walther 1919-7-4 s.n. San Mateo Woodside Comment
  JROH1918  Arbutus menziesii John H. Thomas 1967-6-1 12983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC876360  Arbutus menziesii Lewis S. Rose 1935-3-7 35019 San Mateo Woodside Comment
  SEINET11989292  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  POM367227  Arctostaphylos andersonii L. S. Rose 1947-3-11 47028 San Mateo Kings Mountain. 609 Comment
  SD38430  Arctostaphylos andersonii Edith A. Purer 1933-5-23 3602 San Mateo Skyline Drive. Comment
  CAS-BOT-BC24169  Arctostaphylos andersonii W. R. Dudley 1902-6-1 s.n. San Mateo Woods between grenson's and moore's near Black Mt. Comment
  RSA681634  Arctostaphylos bakeri subsp. bakeri Annuschka Deb 1989-3-17 35 San Mateo Louis edmunds Saratoga Horticulture Foundation. YBN Demonstration Garden. 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-BC23546  Arctostaphylos crustacea L. S. Rose 1942-3-30 42007 San Mateo Rocky brushy hills, Kings Mountain Comment
  CAS-BOT-BC23549  Arctostaphylos crustacea C. F. Baker 1902-3-18 328 San Mateo King's Mountain Comment
  JROH1925  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-6-30 17463 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1930  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-7-5 15665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1936  Arctostaphylos crustacea subsp. crustacea Toni Corelli 2006-1-20 308 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 134 Comment
  JROH1940  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1979-5-10 19547 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1942  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1983-7-20 22893 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC24491  Arctostaphylos imbricata Arthur L. Menzies 1963-3-10 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC24492  Arctostaphylos imbricata Arthur L. Menzies 1963-3-10 s.n. San Mateo San Bruno Hills, on far ridge se. of parking lot. Comment
  JEPS90925  Arctostaphylos imbricata Dean W. Taylor 1988-3-16 9403 San Mateo summit of San Bruno Mountain, along fire road 120 m e from summit parking lot, Santa Cruz Mountains San Bruno Mountain; Santa Cruz Mountains, San Bruno Mountain 371 Comment
  RSA195588  Arctostaphylos imbricata John H. Thomas 1961-5-7 9319 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  SJSU5745  Arctostaphylos imbricata L. S. Rose 1955-2-23 55002 San Mateo TYPE LOCALITY; San Bruno Hills Comment
  UCD51760  Arctostaphylos montaraensis Walter Knight; Irja Knight and Elizabeth McClintock Date Unknown 4447 San Mateo Pacifica; San Pedro County Park; about 1/2 dozen plants 1/4 mi. east of parking lot. Comment
  UCSC010735  Arctostaphylos montaraensis Rick Flores, Monica Schuster 2006-1 RF 152 San Mateo San Bruno and Mantara Mountains Comment
  SEINET11989285  Arctostaphylos montaraensis W. Knight, Knight, I.; McClintock, E. 1982-1 4447 San Mateo San Pedro County Park, Pacifica Comment
  RSA633501  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27574 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  POM367228  Arctostaphylos regismontana L. S. Rose 1938-2-23 38083 San Mateo Kings Mountain. 640 Comment
  UC1120840  Arctostaphylos regismontana Beryl Schreiber 1938-10-16 2564 San Mateo King's Mountain Santa Cruz Quadrangle Comment
  UC526214  Arctostaphylos regismontana Mrs. E. C. Sutliffe 1934-2-2 San Mateo Kings Mountain Comment
  SEINET11989290  Arctostaphylos tomentosa S. W. Edwards 1982-1 s.n. San Mateo Foothill Park near summit of SW ridge Comment
  UC1120095  Arctostaphylos tomentosa subsp. crinita N. K. Carlson 1935-6-12 47 San Mateo 1 mi e Hollow Tree; Santa Cruz Quadrangle Comment
  RSA155444  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1961-2-16 61002 San Mateo Hills w. of Belmont. 183 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
  RSA636845  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24645 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636848  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24648 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120142  Arctostaphylos tomentosa subsp. crustacea A. E. Wieslander 1929-3-19 46 San Mateo Kings Mt. Rd Santa Cruz Quadrangle, Peters Creek (head of creek) 701 Comment
  RSA17966  Arctostaphylos tomentosa subsp. crustacea C. B. Wolf 1927-8-13 713 San Mateo Near summit La Honda Grade, Santa Cruz Mts. Comment
  CAS-BOT-BC46827  Arctostaphylos uva-ursi Arthur L. Menzies 1963-3-10 s.n. San Mateo San Bruno Hills, N.W. of first Television Tower Comment
  CHSC39455  Arctostaphylos uva-ursi B. A. Stein 1981-3-5 441 San Mateo San Bruno Mts., Northeast ridge of summit on Radio Road. 396 Comment
  CAS-BOT-BC400410  Aristolochia californica Elizabeth McClintock 1969-3-9 s.n. San Mateo San Bruno Mountain. Edge of southern ravine of Glen Park Canyon, next to fence dividing Crocker property from City of Brisbane. Eastern portion of mountain Comment
  CAS-BOT-BC520412  Armeria Daniel Cohen 1953-5-9 88 San Mateo Between San Gregorio and Pescadero Comment
  CAS-BOT-BC47698  Armeria maritima subsp. californica Cynthia Steele 1948-5-29 115 San Mateo Pescadero Beach Comment
  CAS-BOT-BC47704  Armeria maritima subsp. californica John R. Berth 1963-5-23 40 San Mateo Pigeon Point 3 Comment
  CAS-BOT-BC47705  Armeria maritima subsp. californica Ray H. Yanis 1951-5-12 99 San Mateo Pescadero 30 Comment
  POM131516  Armeria maritima subsp. californica Katherine Brandegee s.n. San Mateo Moss Beach. Comment
  CDA29889  Arrhenatherum elatius J. Eide 2009-7-2 PDR# 1481186 San Mateo Santa Cruz Mountains; San Bruno Mountain, in the vicinity of San Bruno. 0 Comment
  UCR224656  Arrhenatherum elatius J. Eide 2009-7-20 PDR- 1481186 San Mateo Santa Cruz Mountains; San Bruno Mountain, in the vicinity of San Bruno Comment
  RSA116788  Artemisia biennis Roxana S. Ferris 1924-10-6 4096 San Mateo Searville Lake on Portola Hwy. Comment
  CAS-BOT-BC84884  Artemisia californica Walter Knight; Irja Knight 1963-7-14 297 San Mateo San Bruno Mountain, ridge above Buckeye Canyon 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
  JROH518  Artemisia douglasiana John H. Thomas 1976-10-16 18439 San Mateo Jasper Ridge Biological Preserve, Stanford University; along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fireplace ruins downstream Comment
  RSA184863  Artemisia douglasiana L. S. Rose 1965-9-4 65101 San Mateo Skyline Blvd and half Moon Bay Road, Cahill Ridge 244 Comment
  SEINET259096  Artemisia douglasiana Gordon H. True Jr. 1937-7-23 803 San Mateo San Mateo County: Along Salada Beach-Skyline Blvd. 61 Comment
  RSA17886  Artemisia pycnocephala C. B. Wolf 1927-6-29 s.n. San Mateo Lake Lucerne' S. of Pescadero Comment
  RSA1948  Artemisia pycnocephala C. B. Wolf 1930-11-5 1806 San Mateo 4 mi. S of Pescadero. 8 Comment
  RSA18383  Asclepias fascicularis C. B. Wolf 1927-7-1 s.n. San Mateo Above Emerald Lake, back of Redwood City Comment
  RSA0025139  Aster chilensis 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
  SEINET946245  Asteraceae J. A. Reese 1962-1 San Mateo In rear of home of J.J. Reese; 286 Whiskey Hill Road, Woodside 122 Comment
  CAS-BOT-BC186763  Astragalus gambelianus Ned Cahill 1974-4-18 114 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC186769  Astragalus gambelianus Lewis S. Rose 1956-7-2 56113 San Mateo Skyline Blvd., hills w. of San Mateo 182 Comment
  CAS-BOT-BC186757  Astragalus gambelianus Lois E. James 1947-4-11 1757 San Mateo Hills back of Redwood City Comment
  POM16308  Astragalus nuttallii C. F. Baker 1903-6-30 3358 San Mateo Pillar Point Comment
  RSA10287  Astragalus nuttallii H. A. Barker 1927-5-14 658 San Mateo North of Half Moon Bay. Comment
  RSA18446  Astragalus nuttallii C. B. Wolf 1927-6-29 s.n. San Mateo South of Pebble Beach near Pescadero Comment
  CAS-BOT-BC194427  Astragalus nuttallii var. virgatus Daniel Cohen 1953-5-9 98 San Mateo Beach at Pescadero Comment
  CAS-BOT-BC194430  Astragalus nuttallii var. virgatus Copeland 1905-6-3 3299 San Mateo Montara Pt. Comment
  SBBG34010  Astragalus nuttallii var. virgatus L. S. Rose 1969-9-20 69112 San Mateo Thornton Beach 24 Comment
  CAS-BOT-BC177968  Astragalus nuttallii var. virgatus W. R. Dudley 1909-10-4 s.n. San Mateo Hills above Mussel Rock - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC194432  Astragalus nuttallii var. virgatus Phillip C. Wheeler 1965-6-20 s.n. San Mateo Great Meadow adjacent to Radio Road, San Bruno Mountain Comment
  BLMAR756  Astragalus pycnostachyus var. pycnostachyus Clara Sander 2005-7-5 756 San Mateo San Gregorio, Coastal bluff 25 Comment
  UC1128872  Astragalus pycnostachyus var. pycnostachyus G. E. Sindel 1935-7-25 298 San Mateo 2 mi nnw Pescadero; Santa Cruz Quad., nnw of Pescadero Comment
  UC81253  Astragalus pycnostachyus var. pycnostachyus C. F. Baker 1902-10-1 1744 San Mateo Pillar Point Comment
Read comments
Feb 2 2012
  UC42228  Athyrium filix-femina var. cyclosorum McLean San Mateo Pescadero Comment
  CAS-BOT-BC17584  Athysanus pusillus C. F. Baker 1902-4-6 456 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC17585  Athysanus pusillus LeRoy Abrams 1898-4-1 198 San Mateo Portola. 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
  UC499711  Atriplex hortensis L. R. Abrams 1932-8-22 13410 San Mateo Bayshore Highway near Redwood City; near Redwood City Comment
  SD40199  Atriplex leucophylla Edith A. Purer 1933-7-27 5349 San Mateo Pigeon Point. Comment
  CAS-BOT-BC146081  Avena barbata T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km. east of San Gregorio. Comment
  HSC70743  Avena barbata T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km. E of San Gregorio Comment
  CDA1749  Avena fatua T. C. Fuller 1971-6-1 19880 San Mateo 1 mile east of San Gregorio. 0 Comment
  CAS-BOT-BC389748  Avena fatua M. Danielson 1966-4-23 s.n. San Mateo Hillside east of Canada Road Comment
  UCD56091  Avena strigosa T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio. Comment
  UC42329  Azolla filiculoides F. T. Bioletti 1893-6-15 San Mateo Boden Comment
  SEINET3292746 Image available Baccharis Craig B. Davis 1968-6-25 D- 81 San Mateo Hillside ca. 1 mi. south of junction beginning the north end of Skyline Blvd. Comment
  CAS-BOT-BC98700  Baccharis douglasii John Thomas Howell 1926-10-9 2217 San Mateo Near Lake San Andreas Comment
  RSA176408  Baccharis douglasii John H. Thomas 1964-10-2 10513 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  RSA212153  Baccharis douglasii L. S. Rose 1969-8-22 69099 San Mateo Skyline Blvd. & La Honda Road. 610 Comment
  JROH545  Baccharis glutinosa John Hunter Thomas 1992-7-24 25385 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  UC1192162  Baccharis glutinosa Malcolm A. Nobs and S. Galen Smith 1949-8-25 1573 San Mateo south of Rockaway Beach Comment
  CAS-BOT-BC99533  Baccharis pilularis David D. Keck 1931-10-5 1283 San Mateo 1 mile north of Salada Beach Comment
  CAS-BOT-BC99537  Baccharis pilularis Carl B. Wolf 1934-11-9 6240 San Mateo 200 yds. south of Pigeon Point Lighthouse 15 Comment
  POM350433  Baccharis pilularis Edith A. Purer 1932-7-18 4022 San Mateo Near Pigeon Point Comment
  SEINET11861776  Baccharis pilularis Unknown 1933-8-4 10464 San Mateo along Bayshore Highway Comment
  JROH549  Baccharis pilularis subsp. consanguinea John H. Thomas 1970-7-5 15663 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH552  Baccharis pilularis subsp. consanguinea John H. Thomas 1978-9-24 19336 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1440  Barbarea orthoceras John H. Thomas 1968-3-17 14183 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1442  Barbarea orthoceras John H. Thomas 1973-6-15 16843 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1443  Barbarea orthoceras John H. Thomas 1973-6-15 16843 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1191421  Bassia hyssopifolia Malcolm A. Nobs and S. Galen Smith 1949-8-27 1617 San Mateo salt marshes e Redwood City Comment
  JROH3928  Bellardia trixago John Hunter Thomas 1988-6-6 24510 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Lakeside Laboratory Comment
  CAS-BOT-BC100193  Bellis perennis Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC75663  Berberis nervosa Paul Arnaud 1941-6-5 s.n. San Mateo Redwood City, Woodrow Street. Comment
  CAS-BOT-BC75868  Berberis pinnata W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. Hills west of San Andreas Reservoir. Comment
  RSA140621  Beta vulgaris John H. Thomas 1960-6-25 8796 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. alt. below 25 feet. 8 Comment
  UCD129560  Bidens pilosa Norman Frazier 1941-12-4 s.n. San Mateo along Highway, 1/2 mile east of Half Moon Bay. Comment
  CAS-BOT-BC100318  Blennosperma nanum var. robustum A. D. E. Elmer 1903-4-1 4521 San Mateo San Bruno Hills Comment
  CAS-BOT-BC31092  Bolboschoenus maritimus George Thomas Oberlander 1949-7-24 311 San Mateo Marsh, Upper Crystal Spr. Lake Comment
  CAS-BOT-BC417700  Boykinia occidentalis Josephine D. Randall 1907-7-28 361 San Mateo Iverson's near Peter's Creek Comment
  SJSU15939  Brachypodium distachyon John Rawlings, Ken Hickman 2016-5-26 1815 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CDA36477  Brachypodium sylvaticum Ellen Gartside 2011-8-12 s.n. San Mateo Woodside; above Grandview Drive at entrance of private driveway. 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
  SEINET244250 Image available Brachypodium sylvaticum K. Melo 2003-12-1 PDR 138951 San Mateo Hwy 84 at Grandview Terrace and Schilling Lake. Martin Creek drainage. Comment
  UCD170111  Brachypodium sylvaticum R. Breckenridge; K. Filippini 2010-11-22 s.n. San Mateo Found across a number of properties in Woodside. Comment
  CAS-BOT-BC28048  Brassica fruticulosa Elizabeth McClintock; Paul Reeberg 1989-4-10 s.n. San Mateo Guadalupe Hills. Near horse corral. Comment
  CAS-BOT-BC29992  Brassica juncea Fred Hemphill 1973-5-14 814 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  JROH5554  Brassica nigra John Rawlings 2013-5-28 1156 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few yards north of Rd F, 75 meters west of Escobar gate (just east of serpentine contact). 161 Comment
  RSA187280  Brassica rapa John H. Thomas 1965-4-29 10605 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  CHSC56621  Briza maxima Steven Triano 1988-5-24 178 San Mateo Along w side of Old La Honda Road ca 0.6 mi s of Portola Road and 3.8 mi s of Woodside. 201 Comment
  JROH4876  Briza maxima John Hunter Thomas 1990-5-29 24861 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near picnic area Comment
  UCD57153  Briza maxima Anonymous 1991-5-27 24 San Mateo Along Lake Merced, in Daly City. Comment
  CAS-BOT-BC145323  Briza minor Margaret A. Barry 1937-5-15 125 San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC145333  Briza minor John H. Thomas 1964-4-30 10374 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC145339  Briza minor Javier Penalosa 1963-3-30 2771 San Mateo San Bruno Mountain. Guadalupe Valley. 30 Comment
  POM204993  Briza minor E. B. Copeland 1903-5-24 3257 San Mateo Along Crystal Springs Lake Comment
  JROH5753  Briza minor M. Day 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Whiskey Hill Gate Comment
  CAS-BOT-BC482183  Brodiaea appendiculata Rimo Bacigalupi 1922-5-31 s.n. San Mateo Cedro field near Stanford University Comment
  UCSB841  Brodiaea coronaria Walker, Clifford 1954-4-20 San Mateo Corner of Jefferson and Canada Rds. Comment
  CAS-BOT-BC484345  Brodiaea elegans subsp. elegans Ned Cahill 1974-5-30 323 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC484346  Brodiaea elegans subsp. elegans J. H. Thomas 1960-6-8 8774 A San Mateo Dry roadbank between Stanford and Searsville along San Hill road Comment
  CAS-BOT-BC484351  Brodiaea elegans subsp. elegans W. R. Dudley 1893-5-27 s.n. San Mateo By Arey's residence near Stanford University Comment
  JROH4591  Brodiaea terrestris subsp. terrestris John Hunter Thomas 1981-4-23 20481 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC144141  Bromus W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. San Mateo Creek. Comment
  UCD164091  Bromus carinatus Peter Rubtzoff 1978-4-2 9152 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC148982  Bromus carinatus var. carinatus George Oberlander 1950-4-22 753 San Mateo San Francisco Watershed Reserve. San Andreas Valley. Comment
  JROH4898  Bromus carinatus var. carinatus W. Lennihan 1989-5-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 en route to top. Comment
  RSA320751  Bromus catharticus Robert A. Norris 1984-5-9 4730 San Mateo in open waste ground by Olivet Memorial Park Throughway, Colma. Comment
  UCD58360  Bromus catharticus John C. Throckmorton 1976-6-29 s.n. San Mateo La Honda. Comment
  JROH4908  Bromus catharticus var. catharticus Ann Lambrecht 2006-8-23 28 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry streambed below Dennis Martin marker Comment
  CAS-BOT-BC155840  Bromus catharticus var. elatus Dale Beltz 1956-5-23 s.n. San Mateo Belmont. Comment
  RSA475252  Bromus diandrus Lyman Benson 1935-5-5 6520 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  SD99496  Bromus diandrus Ira L. Wiggins 1975-4-17 22141 San Mateo Menlo Park; between San Francisquito Creek and Willow Road; NE side of Southern Pacific right-of-way Comment
  JROH4917  Bromus hordeaceus John H. Thomas 1963-5-12 10080 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4929  Bromus hordeaceus John Rawlings 2010-4-28 1091 San Mateo Jasper Ridge Biological Preserve, Stanford University; on slope south of the visitor parking lot 119 Comment
  UCD164700  Bromus hordeaceus Peter Rubtzoff 1976-6-13 8634 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH5957  Bromus laevipes John Rawlings 2017-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 14, between dam spillway and Trail 8 intersection 111 Comment
  JROH4950  Bromus madritensis subsp. rubens W. Lennihan 1989-5-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Right of Trail 9 -- going west (north side) Comment
  JROH4956  Bromus madritensis subsp. rubens John Rawlings 2013-4-16 1134 San Mateo Jasper Ridge Biological Preserve, Stanford University; Escobar Gate fenceline about 50 m east of the gate 156 Comment
  RSA523926  Bromus maritimus G. H. True 1937-4-3 621 San Mateo Near coast north of Salada Beach. 15 Comment
  SEINET10933427  Bromus rigidus Delzie Demaree 1932-5-12 Demaree 9128 San Mateo Stanford Farm. Dry situations. Comment
  CAS-BOT-BC161749  Bromus rubens Fred Hemphill 1973-4-22 787 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  SEINET3923291  Bromus rubens Robert A. Norris 1984-3-21 4655 San Mateo Blue Blossom Hill, San Bruno Mts.; 0 366 Comment
  CAS-BOT-BC185393  Bromus vulgaris W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Ridge between Butano and Pescadero Creek. Comment
  CHSC22764  Cakile edentula Robert A. Schlising; Glenn Keator 1962-2-3 2048 San Mateo Coast Ranges. Along area at Gazos Creek and Highway 1. Comment
  POM144330  Cakile edentula Copeland 1903-6-5 3319 San Mateo Montara Point. Comment
  UC136066  Cakile edentula C. F. Baker 1902-10-1 1746 San Mateo Pillar Point; Pacific Coast, Pillar Point Comment
Read comments
Feb 2 2012
  CAS-BOT-BC36870  Cakile edentula var. edentula Copeland 1903-6-5 3319 San Mateo Montara Point. Comment
  UC765080  Cakile maritima R. F. Hoover 1941-2-12 4753 San Mateo Half Moon Bay Comment
  CAS-BOT-BC36958  Cakile maritima var. maritima Robert T. Orr 1961-6-27 s.n. San Mateo Ano Nuevo Island. Comment
  CAS-BOT-BC185141  Calamagrostis nutkaensis Elizabeth McClintock 1967-6-24 s.n. San Mateo San Bruno Mountain. Top of mountain between radio stations on Radio Road. Comment
  CAS-BOT-BC185145  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5051 San Mateo San Pedro. Comment
  CAS-BOT-BC185146  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5051 San Mateo San Pedro. Comment
  CAS-BOT-BC185151  Calamagrostis nutkaensis A. D. E. Elmer 1903-6-1 4693 San Mateo San Pedro. Comment
  CAS-BOT-BC389754  Calandrinia ciliata J. Nieri 1953-2-21 s.n. San Mateo Hetch Hetchy Reservoir, Redwood City Comment
  CAS-BOT-BC273257  Calendula officinalis Peter H. Raven 1950-4-30 1969 San Mateo Montara 24 Comment
  CAS-BOT-BC167301  California macrophylla W. R. Dudley 1896-4-17 s.n. San Mateo Pescadero Comment
  CAS-BOT-BC492166  Calochortus albus Fred Hemphill 1973-5-14 802 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  RSA10360  Calochortus albus H. A. Barker 1926-5-1 592 San Mateo Kings Mt. Comment
  SD656  Calochortus albus lysses S. Grant IV Jun 1925 San Mateo Near La Honda. 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
  IRVC9082  Calochortus albus P. W. Rundel 1963-6-11 1117 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  JROH4628  Calochortus argillosus John Hunter Thomas 1980-6-5 19994 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4634  Calochortus luteus John H. Thomas 1974-5-29 17404 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC491983  Calochortus luteus Josephine D. Randall 1907-6-1 222 San Mateo King's Mt. Road Comment
  POM291026  Calochortus luteus Lyman Benson 1930-5-3 2117 -A San Mateo Hills by Stanford University; Santa Cruz mountain range, Corte Madera Creek watershed 152 Comment
  CAS-BOT-BC389721  Calochortus tolmiei M. K. Wicksten 1971-6-16 39 San Mateo Huddart Prk. Comment
  RSA18382  Calochortus venustus Carl B. Wolf 1927-7-1 526 San Mateo Above Emerald Lake, back of Redwood City Comment
  CAS-BOT-BC494040  Calochortus venustus Ned Cahill 1974-5-30 305 San Mateo Serpentine fields bordered by chaparral near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC494042  Calochortus venustus L. R. Abrams 1930-6-1 1499 San Mateo Serpentine back of Redwood City Comment
  CAS-BOT-BC270666  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo W of Redwood City, Emerald Lake 120 Comment
  POM129524  Calystegia purpurata A. D. E. Elmer 1903-06 4299 San Mateo Pescadero Creek Comment
  CAS-BOT-BC224661  Calystegia purpurata subsp. purpurata James McMurphy 1905-9-15 s.n. San Mateo Goat Ranch, near Stanford University 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-BC224666  Calystegia purpurata subsp. purpurata Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountains. In Colma Canyon Comment
  UC1594174  Calystegia subacaulis subsp. subacaulis Jerry Powell 1991-6-1 1605 San Mateo Edgewood County Park. Comment
  NY679557  Camissonia cheiranthifolia subsp. cheiranthifolia A. D. E. Elmer 03 1903 4942 San Mateo San Pedro. Comment
  POM171567  Camissonia cheiranthifolia subsp. cheiranthifolia R. L. Pendleton 1907-4-20 586 San Mateo Lake Merced 30 Comment
  UCR143018  Camissonia cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1933-7-27 5388 San Mateo Pacific Coast, two miles south of Pigeon Point 30 Comment
  POM126855  Camissonia ovata R. L. Pendleton 1909-4-3 1342 San Mateo Along Los Trancos Creek, 4 miles back of Stanford University 145 Comment
  CAS-BOT-BC160329  Camissoniopsis cheiranthifolia subsp. cheiranthifolia John H. Thomas 1963-5-20 10108 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  SEINET10463048  Campanula prenanthoides David D. Keck 1934-7-7 Keck 2929 San Mateo Kings Mountain, west of summit 610 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
  SEINET10905906  Campanula prenanthoides Wicksten 1971-7-7 WICKSTEN 155 San Mateo HUDDART PARK, ROAD CUT ALONG RD TO FAMILY CAMPGROUND Comment
  JROH1477  Capsella bursa-pastoris John Hunter Thomas 1984-4-10 23284 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC37656  Cardamine californica W. R. Dudley 1893-4-1 s.n. San Mateo Santa Cruz Peninsula. Ravine near La Honda. Comment
  CAS-BOT-BC37659  Cardamine californica W. R. Dudley 1895-2-9 s.n. San Mateo Below Pescadero. Arroyo de las Friojoles. Comment
  CAS-BOT-BC37691  Cardamine californica Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  JROH1481  Cardamine californica D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JEPS90450  Cardamine californica var. integrifolia Dean W. Taylor 1992-3-19 12335 San Mateo Montara Mt. in saddle just e. San Pedro Mt. (reached via old paved rd. from San Pedro Valley, along ridge at BM 924); Santa Cruz Mts., Montara Mt. 7 1/2 Quad. (1980) 274 Comment
  POM204309  Cardamine californica var. integrifolia I. L. Wiggins 1931-2-21 5089 -a San Mateo Pescadero Beach, 0.5 mile N of Pebble Beach hotel. Comment
  POM176892  Cardamine californica var. integrifolia W. R. Dudley 1894-3-28 s.n. San Mateo By Corte de Madera Creek below McDonough s Ranch. Santa Cruz Peninsula. Comment
  CAS-BOT-BC37986  Cardamine oligosperma John H. Thomas 1963-5-20 10119 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles northwest of Santa Cruz. Comment
  CAS-BOT-BC37989  Cardamine oligosperma Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  JROH1489  Cardamine oligosperma Roxana Stinchfield 1914-2-28 155 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH1504  Cardamine oligosperma John Hunter Thomas 1991-4-11 24982 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  POM202951  Cardamine oligosperma Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  UC1056982  Cardamine oligosperma H. L. Mason 1927-4-23 3695 San Mateo Pescadero Creek near Bloomquist Mill; Pescadero Creek near Bloomquist Mill Comment
  CAS-BOT-BC384840  Cardionema ramosissimum Philip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. In Crocker Hills near Cow Palace Comment
  CAS-BOT-BC384842  Cardionema ramosissimum Walter Knight; Irja Knight 1965-4-20 1082 San Mateo San Bruno Mountain. Pig Ranch Ravine 45 Comment
  UCD85499  Carduus pycnocephalus Alison Blake 2003-4-14 2 San Mateo Filoli botanical gardens. Section F-8, ESE of volunteer parking lot about 30 ft beyond P.L. entrance. Comment
Read comments
Jan 18 2012
  CAS-BOT-BC17847  Carex amplifolia LeRoy Abrams 1915-6-14 5563 San Mateo Kings Mountain Road. Near the first bridge. 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
  JROH4314  Carex barbarae John H. Thomas 1974-5-19 17384 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15909  Carex barbarae John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1734 San Mateo Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  JROH4322  Carex bolanderi Toni Corelli 2005-8-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Causeway, Trail 13, west of Leonard's Bridge. 106 Comment
  JROH4323  Carex bolanderi John Rawlings 2010-5-13 1056 San Mateo Jasper Ridge Biological Preserve, Stanford University; 100 feet west of Leonard's Bridge at time of collection. Bridge subsequently extended covering this site. 106 Comment
  CAS-BOT-BC18937  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4328 San Mateo Visatacion Valley. Comment
  JROH4335  Carex densa John Rawlings 2010-5-19 1051 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few yards south of Trail 1 and west of its intersection with Trail a. 88 Comment
  CAS-BOT-BC18933  Carex densa Lewis S. Rose 1936-5-24 36299 San Mateo East of Burlingame. 60 Comment
  POM230443  Carex densa J. T. Howell, Alice Eastwood 1937-5-7 4328 San Mateo Visatacion Valley Comment
  JROH4345  Carex gracilior John Rawlings 2010-5-10 0987 San Mateo Jasper Ridge Biological Preserve, Stanford University. About five feet north (lakeside) of Leonard's bridge. 107 Comment
  CAS-BOT-BC21810  Carex harfordii John Thomas Howell 1938-5-1 13782 San Mateo Near South San Francisco. Comment
  JROH4351  Carex harfordii John Rawlings 2010-5-19 1049 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Just beyond NE terminus of Leonard's Bridge, a large clump on the SE verge of the trail. 107 Comment
  UC803889  Carex hendersonii G. L. Stebbins Jr. 1949-6-5 3983 San Mateo on Skyline Blvd. w Palo Alto (summit of Kings Mtn.); Kings Mtn. Comment
  CAS-BOT-BC119344  Carex obnupta J. H. Thomas 1959-4-4 7658 San Mateo Ca 0.7 mi S of Gazos Creek. Ca 6.5 mi S from Pescadero. 45 Comment
  CAS-BOT-BC119348  Carex obnupta V. F. Hesse 1953-8-22 1190 San Mateo Butano Ridge. 609 Comment
  UCD164097  Carex obnupta Peter Rubtzoff 1978-5-18 9173 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CHSC109976  Carex pendula John Rawlings 2011-7-3 San Mateo 200 m E of junction of Purisima Creek Trail and path to Judson Redwood Grove, about 0.5 air miles E of Higgins Canyon Road, Purisima Creek Redwoods Open Space Preserve, W slope of Santa Cruz Mountains, San Francisco Bay (SnFrB). 165 Comment
Read comments
Jan 26 2018
  CAS-BOT-BC117403  Carex senta W. L. Scofield 1908-4-2 s.n. San Mateo Near Roble bridge, Stanford University. Comment
  SEINET7575205 Image available Carex serratodens Wilhelm Suksdorf 1913-6-22 248 San Mateo Crystal Springs Lake. Comment
  SEINET10750023  Carex subbracteata John Thomas Howell 1938-5-1 Howell 13783 San Mateo Near South San Francisco. Comment
  SEINET6192755 Image available Carex subbracteata J. T. Howell 1938-5-1 13782 San Mateo near South San Francisco Comment
  CAS-BOT-BC116819  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-5-7 4326 San Mateo Visatacion Valley. Comment
  CAS-BOT-BC116823  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5248 San Mateo Lobitas Comment
  CAS-BOT-BC116829  Carex subbracteata var. subbracteata W. R. Dudley 1906-6-10 s.n. San Mateo Cahill Ridge, 100 yds N of Spanish Town Road. Comment
  CAS-BOT-BC116833  Carex subbracteata var. subbracteata Roxana S. Ferris 1921-5-29 5197 San Mateo Roadside ditch near Arroyo de los Frijoles. Comment
  JROH4367  Carex tumulicola John Hunter Thomas 1981-4-27 20502 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  UCD165065  Carex tumulicola Peter Rubtzoff 1975-5-21 7974 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CHSC39844  Carpobrotus Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  SJSU7602  Carpobrotus edulis E. P. Ryan 1965-4-25 San Mateo 1 mi N of Pigeon Point Lighthouse Comment
  CAS-BOT-BC249192  Castilleja affinis David D. Keck 1940-5-15 5037 San Mateo Upper Crystal Springs Lake, east side 100 Comment
  LA209094  Castilleja affinis A. A. Heller; 1907-4-20 8442 San Mateo Near Lake Merced 60 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
  POM283660A  Castilleja affinis Lyman Benson 1930-5-1 2072 San Mateo Stanford Univ. San Lorenzo mtn range. 152 Comment
  SD131922  Castilleja affinis Rimo Bacigalupi, G. T. Robbins 1954-6-18 4549 San Mateo Along Skyline Blvd., 1I(c) miles north of the crossing of Page Mill (Alpine) road Comment
  JEPS103885  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-20 7878 San Mateo Mussel Rock Comment
  JEPS86438  Castilleja affinis subsp. affinis L. R. Heckard 1988-6-9 6679 San Mateo Pescadero Beach State Park Comment
  SJSU15408  Castilleja affinis subsp. affinis Toni Corelli 2010-5-13 609 San Mateo Pedro Point Headlands, Pacifica CA; along Arroyo Trail 110 Comment
  JEPS103890  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1991-7-3 7861 San Mateo 1 mile S of Linda Mar, on highway 1 Comment
  SEINET7097933  Castilleja ambigua A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees) Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  LA209419  Castilleja ambigua David D. Keck; 1932-4-29 1453 San Mateo Burlingame-San Mateo city limits Comment
  UC886508  Castilleja ambigua subsp. ambigua Alice Eastwood 1912-6-2 208 San Mateo Granada Comment
  RSA0030796  Castilleja ambigua subsp. ambigua D. D. Keck 1932-4-29 1453 San Mateo Burlington - San Mateo city limits, Bayshore Highway. Along San Francisco Bay. Comment
  JROH3971  Castilleja attenuata Carol Zabel 1989-4-19 9 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7063806  Castilleja brevistyla A. G. Vestal 1947-4-24 s.n. San Mateo Enclosure at jasper Ridge. UTM Zone 10, 568421mE, 4140420mN. (WGS84/NAD83). 174 Comment
  SEINET12288716  Castilleja latifolia Unknown 1932-1 8989 San Mateo between Sky Line Drive & Half Moon Bay Comment
  JEPS4838  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi and Alex D. Hawkes 1952-9-1 3962 San Mateo 0.7 mi w Pescadero (along old coast (county) road) Comment
  JEPS88801  Castilleja subinclusa subsp. franciscana T. I. and F. M. Chuang 1991-7-3 7859 San Mateo 0.8 mi sw Interstate 280 junction with Route 92 (on Route 92) Comment
  SBBG51587  Castilleja subinclusa subsp. franciscana J. Doty 1969-3-26 595 San Mateo E of jct of St Hwy 92, near summit of coast range, San Francisco Peninsula Comment
  JEPS15591  Castilleja wightii Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4735 San Mateo along upper slopes Edgemar Road (nw San Mateo County) 100 Comment
  JEPS4857  Castilleja wightii Rimo Bacigalupi with L. Constance and C. R. Bell 1951-3-25 3203 San Mateo outskirts Daly City (slopes of Colma Canyon, nw end of San Bruno Hills); San Bruno Hills, Colma Canyon Comment
  JEPS6953  Castilleja wightii Peter H. Raven 1950-4-30 1989 San Mateo Montara Mts. 24 Comment
  JEPS78273  Castilleja wightii L. R. Heckard with T. I. Chuang and Mike Morris 1979-6-21 5118 San Mateo s end Adobe Avenue (San Pedro Valley); San Pedro Valley Comment
  RSA152274  Castilleja wightii John H. Thomas 1961-5-7 9305 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  RSA191943  Castilleja wightii Robert F. Thorne, Percy C. Everett 1963-6-9 32210 San Mateo On top of San Bruno Mountain, near TV tower. 335 Comment
  RSA505384  Castilleja wightii R. C. Bacigalupi, G. Thomas Robbins 1955-8-4 5446 San Mateo Along Calif. Highway No. 1, at western end of Montara Mountain, 1.1 mi. north of northern limits of town of Montara. Comment
  UC1327236  Castilleja wightii John T. Doyen 1966-3-28 37 San Mateo San Bruno Mountains; near Radio Towers on top Comment
  UC144532  Castilleja wightii unknown May 1902 799 San Mateo King's Mt. Comment
  UC1713545  Castilleja wightii Katharine Brandegee 1917-7-29 San Mateo Tunitas Station; Ocean Shore R.R. Comment
  UC198265  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore Railway Comment
  UC198510  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore R.R. Comment
  CDA41387  Castilleja wightii T. I. & F. M. Chuang 1991-7-1 7846 San Mateo 1.1 mile north of Montara. 0 Comment
  JEPS6921  Castilleja wightii Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4553 San Mateo 0.25 mi w (and below) Alpine Road junction with road to Portola State Park (along Alpine Road) 426 Comment
  OBI78360  Castilleja wightii Lewis S. Rose 1965-4-22 65026 San Mateo San Bruno Mtn, S of parking lot 366 Comment
  RSA0005986  Castilleja wightii A. D. E. Elmer 1903-07 4761 San Mateo San Pedro. 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
  SJSU11476  Castilleja wightii S. H. Casey 1969-5-18 250 San Mateo San Bruno Mt below Fern Rock Comment
  CAS-BOT-BC40398  Caulanthus lasiophyllus Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Adjacent to Guadalupe Road. Comment
  CDA34104  Ceanothus incanus D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .158 San Mateo Santa Cruz Mountains.; Along Big Basin Hwy ~5 km E of Big Basin. Comment
  CAS-BOT-BC51593  Ceanothus oliganthus var. sorediatus A. D. E. Elmer 1903-5-1 4479 San Mateo Portola Comment
  CAS-BOT-BC51597  Ceanothus oliganthus var. sorediatus Helen M. Edwards 1917-4-1 s.n. San Mateo Crystal Springs Lake Comment
  UC762253  Ceanothus oliganthus var. sorediatus R. F. Hoover 1941-5-20 5115 San Mateo Skyline Road sw Black Mt.; sw of Black Mt. Comment
  CAS-BOT-BC51237  Ceanothus papillosus David D. Keck 1932-5-11 1774 San Mateo East side of Kings Mountain, on Kings Mountain Road 502 Comment
  UCR139357  Ceanothus papillosus David D. Keck 1932-5-11 1774 San Mateo San Francisco Bay Region, east side of Kings Mountain, on Kings Mountain Road 500 Comment
  CAS-BOT-BC52294  Ceanothus thyrsiflorus J. I. McMurphy 1906-5-8 12 San Mateo Woodside, Santa Cruz Mts. 121 Comment
  CAS-BOT-BC52295  Ceanothus thyrsiflorus J. I. McMurphy 1906-5-8 12 San Mateo Woodside, Santa Cruz Mts. 121 Comment
  RSA157755  Ceanothus thyrsiflorus I. L. Wiggins 1925-5-24 1744 San Mateo Along county road from Pescadero to Pebble Beach along rich swamp land just before coming to the artichoke lands of the American Produce Co. Comment
  UC567045  Ceanothus thyrsiflorus N. K. Carlson 1935-7-5 60 San Mateo three mi s Bellvale; Santa Cruz Quad. 640 Comment
  UCR12018  Ceanothus thyrsiflorus Coleta A. Lawler 1964-4-19 54 San Mateo 5 mi. E Half Moon Bay: on Half Bay Rd., 1.1 mi W jct Skyline Drive. On north side of road 91 Comment
  UCD18549  Ceanothus thyrsiflorus Roman Gankin 1950-7-9 21 San Mateo 1 mile west of city of Pescadero toward State Hwy 1. Along the roadside, swamp nearby, near ocean. 15 Comment
  JEPS21637  Centaurea calcitrapa John H. Thomas 1955-4-6 4831 San Mateo e facing slope of San Bruno Mountain, just n of South San Francisco San Bruno Mountain, South San Francisco 30 Comment
  JROH595  Centaurea calcitrapa John Hunter Thomas 1991-11-21 25108 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  POM177456  Centaurea calcitrapa L. R. Abrams, I. L. Wiggins 1930-11-13 174 San Mateo Hillside above Crystal Springs Lake 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-BC274586  Centaurea calcitrapa L. R. Abrams; I. L. Wiggins 1930-11-13 174 San Mateo Hillside above Crystal Springs Lake Comment
  CAS-BOT-BC274593  Centaurea calcitrapa Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  JROH587  Centaurea calcitrapa D. E. Breedlove 1971-5-11 19335 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  CDA7169  Centaurea melitensis D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  CAS-BOT-BC277123  Centaurea melitensis A. D. E. Elmer 1903-6-1 4281 San Mateo Crystal Springs Lake Comment
  JROH607  Centaurea solstitialis John Hunter Thomas 1982-6-7 21027 San Mateo Jasper Ridge Biological Preserve, Stanford University; old sandy beach Comment
  RSA17963  Centaurea solstitialis C. B. Wolf 1927-8-13 716 San Mateo Woodside Comment
  RSA407369  Centaurea solstitialis Lyman Benson 1932-7-25 3954 San Mateo Menlo Park. 30 Comment
  CAS-BOT-BC277229  Centaurea solstitialis Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon 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
  SEINET7097921  Centaurium davyi A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  SJSU15427  Centaurium tenuiflorum Toni Corelli 2011-8-25 716 b San Mateo Pescadero State Beach and Marsh Natural Preserve, Round Hill Trail at the end of Water Lane Road 12 Comment
  CAS-BOT-BC279331  Centromadia pungens subsp. pungens Ned Cahill 1974-10-8 377 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC279326  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. & California Dr. 9 Comment
  JEPS44407  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Trousdale Dr. and California Dr.; Burlingame 9 Comment
  OBI16134  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Blurlingame, Trousdale Dr. & Calif dr. 9 Comment
  UCD164003  Cerastium fontanum subsp. vulgare Peter Rubtzoff 1977-11-24 9141 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC388385  Cerastium glomeratum John H. Thomas 1964-4-30 10355 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC388386  Cerastium glomeratum John H. Thomas 1965-4-29 10622 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH1694  Cerastium glomeratum John H. Thomas 1975-4-5 17709 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC166933  Cerastium holosteoides Peter Rubtzoff 1977-11-24 9141 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH3617  Cercocarpus betuloides var. betuloides L. R. Abrams 1916-3-25 5573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3621  Cercocarpus betuloides var. betuloides John H. Thomas 1961-6-14 9541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA4771  Chamaesyce serpens J. T. Howell 1979-8-11 53359 San Mateo Airport Sheraton, Airport Boulevard, Burlingame. 0 Comment
  UC463309  Chenopodium chenopodioides L. R. Abrams and I. L. Wiggins 1930-11-13 178 San Mateo Salada Beach; margin of pond Comment
  POM279724  Chenopodium murale Lyman Benson 1937-6-27 8394 San Mateo Moss Beach. 3 Comment
  RSA181237  Chenopodium murale John H. Thomas 1963-5-20 10106 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC191592  Chorizanthe cuspidata var. cuspidata W. R. Dudley 1901-5-11 s.n. San Mateo near Colma. Santa Cruz Mountain Peninsula 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
  RSA121897  Chrysolepis chrysophylla C. M. Belshaw 1936-1-25 1462 San Mateo Kings Mountain road, 4.5 miles west of Woodside; South Coast Range. Comment
  CAS-BOT-BC277895  Cirsium brevistylum A. D. E. Elmer 1903-6-1 4277 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC277896  Cirsium brevistylum L. R. Abrams; I. L. Wiggins 1939-6-3 427 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC277891  Cirsium brevistylum Peter H. Raven 1957-6-24 968 San Mateo 0.6 miles s. of San Gregorio Beach Comment
  CAS-BOT-BC100937  Cirsium fontinale var. fontinale H. K. Sharsmith 1937-6-3 3951 San Mateo near road which connects Skyline Boulevard with road to Belmont. About 3 miles west of San Mateo, Crystal Springs Lake 152 Comment
  UC922267  Cirsium fontinale var. fontinale H. K. Sharsmith 1937-6-3 3952 San Mateo about 3 mi w of San Mateo; Crystal Springs Lake 152 Comment
  UCD130569  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo east shore of Upper Crystal Springs Lake, 0.7 mile south of road across lake. Comment
  SEINET5506166  Cirsium fontinale var. fontinale John Thomas Howell San Mateo 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-BC280133  Cirsium occidentale var. venustum George Oberlander 1949-6-25 251 San Mateo San Francisco Watershed Reserve. East of Sawyer Ridge Comment
  CAS-BOT-BC280510  Cirsium quercetorum Alice Eastwood 1912-6-10 342 San Mateo Crystal Springs Comment
  CAS-BOT-BC280520  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280530  Cirsium quercetorum John H. Thomas 1961-5-7 9271 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS30887  Cirsium quercetorum J. H. Thomas 1958-6-11 7227 San Mateo about 4.3 mi due e of Belmont (near Crystal Springs Reservoir); , Crystal Springs Reservoir 91 Comment
  SJSU15944  Cirsium quercetorum John Rawlings, Ken Hickman 2016-5-26 1819 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC280512  Cirsium quercetorum W. R. Dudley 1893-5-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Hills near Millbrae Comment
  CAS-BOT-BC280522  Cirsium quercetorum Lewis S. Rose 1934-5-15 34258 B San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280527  Cirsium quercetorum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Top of Quarry 4 Comment
  RSA0070860  Cirsium quercetorum A. D. E. Elmer 1903-06 4290 San Mateo Crystal Springs Lake. Comment
  JROH640  Cirsium vulgare John Hunter Thomas 1977-6-16 18799 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD130823  Cirsium vulgare Otto T. Solbrig 1958-8-3 2920 San Mateo near road on Highway 5, Crystal Spring Lake. 30 Comment
  CAS-BOT-BC223882  Cistus Greg de Nevers 1996-5-22 10811 B San Mateo Edgewood County Park 121 Comment
  UC762862  Clarkia epilobioides R. F. Hoover 1941-4-23 4904 San Mateo Redwood City Hills Comment
  CAS-BOT-BC163976  Clarkia purpurea subsp. quadrivulnera Margaret A. Barry 1937-5-1 53 San Mateo Exposed slopes on Coal Mine Ridge 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
  POM271800  Clarkia purpurea subsp. quadrivulnera Lyman Benson 1930-4-17 2088 San Mateo Stanford University, foothills. Upper Sonoran. 122 Comment
  RSA448311  Clarkia purpurea subsp. quadrivulnera H. F. Copeland 1929-7-4 1250 San Mateo La Honda Grade Comment
  CAS-BOT-BC165154  Clarkia rubicunda Lewis S. Rose 1936-5-28 36301 San Mateo Emerald Lake, W. of Redwood City 91 Comment
  CAS-BOT-BC165175  Clarkia rubicunda Hester R. Davis 1920-6-1 180 San Mateo Back of Redwood City Comment
  CAS-BOT-BC165176  Clarkia rubicunda H. A. Dutton 1900-4-17 s.n. San Mateo Woodside Comment
  JROH3015  Clarkia rubicunda Rachel Hays 1972-7-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC112979  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  UC422840  Clarkia rubicunda W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  CAS-BOT-BC165125  Clarkia rubicunda W. R. Dudley 1909-10-4 s.n. San Mateo By roadside to N. Pond, below Mussel Rock Comment
  CAS-BOT-BC165126  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165131  Clarkia rubicunda Carl B. Wolf 1927-6-29 566 San Mateo On the coast 3 mi. so. of San Gregorio Comment
  CAS-BOT-BC165135  Clarkia rubicunda Peter H. Raven 1957-7-4 11044 San Mateo State Highway 9, 2.7 miles south-west of junction with State Highway 5 Comment
  CAS-BOT-BC165136  Clarkia rubicunda Peter H. Raven 1957-6-20 10955 San Mateo Above south-east end of Lake San Andreas Comment
  CAS-BOT-BC165144  Clarkia rubicunda Elizabeth McClintock 1965-6-13 s.n. San Mateo Lower slope on south side above Olivet Cemetery Comment
  CAS-BOT-BC165171  Clarkia rubicunda H. L. Mason 1921-7-14 s.n. San Mateo La Honda - Pescadero Road near Pescadero Creek Comment
  RSA113594  Clarkia rubicunda Peter H. Raven 1957-7-4 11046 San Mateo Near San Gregorio Creek, 6.1 miles from San Gregorio on road to La Honda Comment
  RSA209471  Clarkia rubicunda subsp. blasdalei R. Setzer 1969-7-18 3366 San Mateo Montara Beach Comment
  CAS-BOT-BC439989  Claytonia perfoliata subsp. mexicana Josephine D. Randall 1907-6-8 296 San Mateo Santa Cruz Peninsula. Portola Valley Comment
  CAS-BOT-BC439991  Claytonia perfoliata subsp. mexicana Peter H. Raven 1951-2-18 2729 San Mateo Brisbane Comment
  JROH3347  Claytonia perfoliata subsp. perfoliata John H. Thomas 1967-4-28 12725 San Mateo Jasper Ridge Biological Preserve, Stanford University; near "Oaks" Comment
  UC1300962  Claytonia perfoliata subsp. perfoliata Helen K. Sharsmith 1963-2-16 5138 San Mateo above Daly City (slopes of San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  CAS-BOT-BC443655  Claytonia perfoliata subsp. perfoliata Peter H. Raven 1951-2-18 2728 San Mateo Brisbane Comment
  JROH2877  Clinopodium douglasii John H. Thomas 1973-6-15 16845 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
  HSC23891  Clinopodium douglasii Mary Katherine Wicksten 1971-6-16 33 San Mateo Bank at Huddart Park, by Werder Flat Comment
  POM298046  Collinsia franciscana A. A. Heller 1907-4-25 8463 San Mateo San Bruno Hills. Comment
  POM273510  Collinsia heterophylla Lyman D. Benson 1931-4-26 2759 San Mateo Behind Stanford U., Brookside Park, Santa Cruz mtn range. 244 Comment
  CAS-BOT-BC240920  Collinsia multicolor Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. On north side of mountain 1/2 mi. east of Brisbane power lines Comment
  CAS-BOT-BC240922  Collinsia multicolor Dr. E Goodman 1922-5-23 s.n. San Mateo San Bruno hills Comment
  CAS-BOT-BC240937  Collinsia multicolor Miss E. Cannon 1891-1-1 s.n. San Mateo S.S.F. Comment
  JEPS85167  Collinsia multicolor Roy E. Buck 1987-5-2 566 San Mateo on ne-facing slope along Crystal Springs Rd. ca 300 m n Woodridge Rd. jct. (1.5 air km nne of confluence of San Mateo and Polhemus Creeks); Hillsborough, Canyon of San Mateo Creek 33 Comment
  RSA296437  Collinsia multicolor A. Martin 1957-5-23 s.n. San Mateo Upper edge of the town Brisbane, SW slope of San Bruno Hills 198 Comment
  SD120833  Collinsia multicolor A. Paul Martin 1957-5-23 San Mateo Northern San mateo County; upper edge of town of Brisbane, southeastern slopes of San Bruno Hills 198 Comment
  JROH4021  Collinsia sparsiflora var. collina John Hunter Thomas 1983-4-14 21402 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM14894  Collinsia sparsiflora var. collina C. F. Baker 1902-4-4 444 San Mateo Crystal Springs Lake. Comment
  UC138687  Collinsia sparsiflora var. collina C. F. Baker 1902-4-4 444 San Mateo Crystal Springs Lake Comment
  UC729639  Collomia heterophylla Carl B. Wolf 1929-5-25 3725 San Mateo 1/2 mi n La Honda Grade (on road to Woodside) 121 Comment
  RSA10271  Collomia heterophylla H. A. Barker 1927-5-6 696 San Mateo Summit of Kings Mts. Comment
  JROH209  Conium maculatum John H. Thomas 1968-5-22 14462 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of lake Comment
  JROH218  Conium maculatum John Hunter Thomas 1982-5-18 20947 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Searsville Lake near bridge Comment
  RSA176421  Conium maculatum John H. Thomas 1964-7-3 10442 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto , along road above Searsville Lake Comment
  POM132669  Conium maculatum A. D. E. Elmer 1903-07 4957 San Mateo San Mateo Comment
  CAS-BOT-BC285993  Conyza bonariensis Ira L. Wiggins 1974-7-27 22109 San Mateo Crest of northerly bank of San Francisquito Creek, opposite 1455 Woodland Avenue, Menlo Park Comment
  POM263616  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside. 60 Comment
  POM273538  Cordylanthus pilosus subsp. pilosus Lyman Benson 1934-7-28 6106 San Mateo Stanford University. Santa Cruz mtn range, S.F. Bay watershed. 152 Comment
  RSA101017  Cordylanthus pilosus subsp. pilosus G. Oberlander 1949-7-30 355 San Mateo South of Upper Crystal Springs Lake, San Francisco Watershed Reserve. Comment
  POM72033  Cordylanthus rigidus subsp. rigidus Alice Eastwood 1896-9-6 s.n. San Mateo Crystal Springs. Comment
  UC885664  Cordylanthus rigidus subsp. rigidus Lewis S. Rose 1941-9-13 41441 San Mateo Crystal Springs Lake 182 Comment
  RSA0034444  Cornus glabrata C. B. Wolf 1931-8-20 2329 San Mateo 3 miles west of Mayfield on road to La Honda. 91 Comment
  CAS-BOT-BC210353  Cornus sericea W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. San Mateo Creek Comment
  CAS-BOT-BC210359  Cornus sericea Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  CDA1904  Cortaderia jubata G. D. Barbe 1977-11-17 2353 San Mateo At intersection of Skyline Blvd. (Hwy 35) and Hwy 92 at Skylawn Memorial Park, between San Mateo and Half Moon Bay. 0 Comment
  JROH5668  Cortaderia selloana John Rawlings 2013-12-3 1242 San Mateo Jasper Ridge Biological Preserve, Stanford University; west side of the Corte Madera Creek main channel, visible from Trail 13. 109 Comment
  CAS-BOT-BC180359  Corylus cornuta subsp. californica George Oberlander 1950-2-1 415 San Mateo Sawyer Ridge. San Francisco Watershed Reserve Comment
  CAS-BOT-BC180367  Corylus cornuta subsp. californica A. D. E. Elmer 1903-3-1 4536 San Mateo King's Mountain Comment
  HSC23909  Corylus cornuta subsp. californica Mary Katherine Wicksten 1971-6-17 81 San Mateo Huddart Park above Oak Flat Comment
  JROH1331  Corylus cornuta subsp. californica John H. Thomas 1959-4-5 7668 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM196594  Corylus cornuta var. californica W. R. Dudley 1902-5-17 s.n. San Mateo King Mountain rd. 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
  SEINET7876342 Image available Cotoneaster pannosus A. T. Whittemore 2001-1 01 -012 San Mateo Garden of 418 Hillway Drive., Redwood City 98 Comment
  POM88012  Cotula australis L. R. Abrams 1902-4-13 2323 San Mateo San Andreas Lake. Comment
  CAS-BOT-BC287307  Cotula australis Walter & Irja Knight 1965-3-21 957 San Mateo San Bruno Mt. North Power Line Ridge along summit road Comment
  CHSC57065  Cotula coronopifolia Steven Triano 1988-5-24 202 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  JROH662  Cotula coronopifolia John Hunter Thomas 1981-7-12 20707 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of water along old beach Comment
  RSA291922  Crassula aquatica Robert A. Norris 1981-11-7 4276 San Mateo Pond near Ano Nuevo Point. Comment
  CAS-BOT-BC427831  Crassula connata John H. Thomas 1956-4-7 5626 San Mateo Jasper Ridge, about 3.5 miles SW of Stanford University. 182 Comment
  CAS-BOT-BC427835  Crassula connata Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Slope above Hillside Blvd., South San Francisco. Comment
  CAS-BOT-BC427836  Crassula connata Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Near Guadalupe Road in Crocker Hills. Comment
  SEINET12216216  Crassula connata E. McClintock, Knight, W.; Knight, I. 1982-1 4631 San Mateo from windy Kamchatka Point, San Bruno Mountain Comment
  JEPS50008  Crassula connata var. erectoides W. L. Jepson 1921-4-3 9106 San Mateo Colma Comment
  JROH3650  Crataegus monogyna John H. Thomas 1965-4-10 10560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3652  Crataegus monogyna John H. Thomas 1965-4-10 10560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389725  Croton setiger M. K. Wicksten 1971-7-20 148 San Mateo Huddart Pk. Comment
  JEPS90291  Cryptantha clevelandii Dean W. Taylor 1989-8-1 10415 San Mateo saddle between North Peak and Montara Knob (Santa Cruz Mountains, Montara Mountain, dirt road serrving PG&E Half Moon Bay to Pacifica high-voltage transmission lines); Santa Cruz Mountains, Montara Mountain 518 Comment
  JROH1386  Cryptantha clevelandii var. florosa Toni Corelli 2003-5-28 262 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bird marker along Trail 9 at edge of chaparral. 140 Comment
  UC78495  Cryptantha flaccida C. F. Baker 1902-4-6 468 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC389709  Cryptantha intermedia L. Sigal 1969-6-1 s.n. San Mateo Belmont Comment
  JROH1368  Cryptantha micromeres John Rawlings 2009-5-7 1069 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 in chaparral. 158 Comment
  SEINET3863379 Image available Cupressus macrocarpa Lois R. O'Brien 1963-3-9 95 San Mateo San Bruno Mountains, on Radio Road 1 mile from Estrada Way. Southeast facing slope at road.; 0 137 Comment
  JROH1861  Cuscuta occidentalis John Rawlings 2011-10-18 1095 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Boat launch below Searsville Lab. 104 Comment
  UC580080  Cuscuta salina var. major Ira L. Wiggins 1934-8-11 6970 San Mateo 1 mi n Redwood City (along Bayshore Highway) Comment
  CDA5324  Cyclospermum leptophyllum C. M. Sill 1970-7-17 San Mateo Mrs. G. Yuki, 439 Alameda, Redwood City. 0 Comment
  JEPS22117  Cynara cardunculus subsp. cardunculus J. H. Thomas 1958-10-21 7487 San Mateo near intersection of Bayshore Highway and Main Street; Redwood City Comment
  JEPS88622  Cynara cardunculus subsp. cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just south of Main Street, Redwood City Comment
  JROH1395  Cynoglossum grande John Hunter Thomas 1988-4-7 24384 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130413  Cynoglossum grande W. R. Dudley 1896-2-16 s.n. San Mateo Glen Gloaming, branch of Pescadero and Mill Creek near Black Mt. Comment
  JROH5012  Cynosurus echinatus John Hunter Thomas 1990-5-29 24862 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near picnic area Comment
  CAS-BOT-BC114777  Cyperus acuminatus Ira L. Wiggins 1973-7-29 22046 San Mateo Bed of San Francisquito Creek, 50-200 m upstream from Pope Street Bridge. Comment
  UC457144  Cyperus eragrostis David D. Keck 1263 San Mateo desiccated swamp near Searsville Lake 75 Comment
  CAS-BOT-BC114455  Cyperus eragrostis Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Buckeye Canyon, San Bruno Mountains. Comment
  CAS-BOT-BC114456  Cyperus eragrostis W. R. Dudley 1908-6-19 s.n. San Mateo Road from Tanforan to Jersey Dairy. Comment
  UCD18539  Cyperus eragrostis Roman Gankin 1950-7-4 7 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  UC673588  Cypripedium fasciculatum Monica Deitrich March 1927 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC198191  Cytisus scoparius George Oberlander 1950-4-23 878 San Mateo San Andreas Valley, San Francisco Watershed Reserve Comment
  CAS-BOT-BC198195  Cytisus scoparius Phillip C. Wheeler 1965-4-27 s.n. San Mateo Brisbane, San Bruno Mountain Comment
  RSA78584  Cytisus scoparius P. A. Munz 1953-2-1 18273 San Mateo North of Scott Valley. Comment
  JROH5024  Dactylis glomerata John Hunter Thomas 1985-5-21 23665 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge Comment
  CAS-BOT-BC192227  Danthonia californica Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Crocker Hills Comment
  CAS-BOT-BC192230  Danthonia californica A. G. Vestal 1924-5-20 s.n. San Mateo Sandhill Road (west of Menlo Park) Comment
  CAS-BOT-BC192232  Danthonia californica David D. Keck 1932-5-6 1479 San Mateo Just west of Millbrae Highlands 50 Comment
  HSC81716  Danthonia californica Thomas W. Nelson, Jane P. Nelson 1980-5-3 5133 San Mateo Intersection of Hwy. 92 and Hwy. 280, W of San Mateo. Comment
  HSC82084  Danthonia californica Thomas W. Nelson, Jane P. Nelson 1980-5-3 5133 San Mateo Intersection of Hwy. 92 and Hwy. 280, W of San Mateo. Comment
  JROH5038  Danthonia californica John H. Thomas 1968-5-3 14437 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA790274  Danthonia californica Peter Rubtzoff 1976-5-22 8547 San Mateo San Bruno Mtn: ''Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  JROH1907  Datisca glomerata John Hunter Thomas 1991-11-21 25104 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  RSA176777  Daucus pusillus John H. Thomas 1963-5-20 10137 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  UC106445  Daucus pusillus Mrs. K. Brandegee June, 1905 San Mateo Halfmoon Bay Comment
  UC1122940  Daucus pusillus N. K. Carlson 1935-6-29 108 San Mateo 1 mi. s. Pescadero; Santa Cruz Quad. Comment
  UC1177095  Deinandra corymbosa Peter H. Raven 1950-6-3 2264 San Mateo near San Andreas Lake 121 Comment
  UC419710  Deinandra corymbosa Mrs. H. P. Bracelin 1930-10-26 131 San Mateo between Half Moon Bay and Santa Cruz (s of Pescadero, Ocran Road) Comment
  UC897706  Deinandra corymbosa Lewis S. Rose 1937-8-29 37644 San Mateo Moss Beach 15 Comment
  CAS-BOT-BC299188  Deinandra corymbosa subsp. corymbosa A. D. E. Elmer 1903-7-1 4963 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC299227  Deinandra corymbosa subsp. corymbosa David D. Keck 1932-5-25 1784 San Mateo Hills two miles west of Belmont Comment
  CAS-BOT-BC299217  Deinandra corymbosa subsp. corymbosa H. D. Geis 1901-10-1 s.n. San Mateo Spanishtown Comment
  CAS-BOT-BC299230  Deinandra corymbosa subsp. corymbosa David D. Keck 1931-10-5 1295 San Mateo Skyline Boulevard, summit of Cahill Ridge, 1.5 miles south of Half Moon Bay Road 450 Comment
  CAS-BOT-BC300008  Deinandra lobbii H. M. Hall 1930-8-7 12844 San Mateo Livermore Valley, Vasco Road at junction of highway Comment
  JEPS23534  Delairea odorata J. H. Thomas 1958-12-18 7509 San Mateo just w San Bruno (along Skyline Blvd.) Comment
  CAS-BOT-BC292118  Delairea odorata John H. Thomas 1967-2-9 12404 San Mateo Montara. Near 3rd St. and Farallones Ave. Comment
  JROH3434  Delphinium californicum subsp. californicum John H. Thomas 1973-6-10 16811 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9237  Delphinium decorum Peter H. Raven 1950-4-16 1788 San Mateo Colma Canyon, San Bruno Mountains 182 Comment
  POM270764  Delphinium hesperium Lyman Benson 1930-5-12 2124 San Mateo Lake Searsville. 152 Comment
  RSA122777  Delphinium hesperium N. K. Carlson 1935-6-29 107 San Mateo San Mateo: 1 mile S of Pescadero, Santa Cruz. 91 Comment
  JROH3444  Delphinium hesperium subsp. hesperium John H. Thomas 1976-5-26 18155 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC570175  Delphinium hesperium subsp. hesperium N. K. Carlson 1935-6-29 107 San Mateo 1 mi s Pescadero 91 Comment
  CHSC60193  Delphinium nudicaule Jan M. Karaz 1979-5-27 59 San Mateo 3 mi e of Hwy 280 intersection with Woodside Road, 1.2 mi e of Woodside on Mountain Home Road. 7 Comment
  RSA18089  Delphinium patens Carl B. Wolf 1929-4-26 3659 San Mateo Woodside. Comment
  POM177534  Delphinium patens W. R. Dudley 1894-05 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  CAS-BOT-BC116524  Delphinium patens subsp. patens J. H. Thomas 1954-5-7 4067 San Mateo Near Skyline Blvd. about 2 miles SW of Black Mountain 655 Comment
  CAS-BOT-BC7893  Delphinium variegatum C. F. Baker 1902-4-6 458 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC7929  Delphinium variegatum Adolph Daniel Edward Elmer 1903-5-1 4796 San Mateo Crystal Springs Lake Comment
  POM177524  Delphinium variegatum W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Lake Comment
  SEINET3075261 Image available Delphinium variegatum C. W. Sharsmith 1951-4-6 5825 San Mateo Woodside Hills, 3 miles west of Woodside. 180 Comment
  CAS-BOT-BC7936  Delphinium variegatum Cynthia Steele 1948-4-18 26 San Mateo Redwood City Comment
  CAS-BOT-BC7938  Delphinium variegatum John Hunter Thomas 1967-5-2 12815 San Mateo Along Skyline Blvd. 0.4 miles S of Black Mt. Road intersection, Hillsborough Comment
  CAS-BOT-BC389715  Dendromecon rigida Sharon Rogers 1966-4-1 105 San Mateo San Mateo Comment
  POM176883  Dendromecon rigida Roxana S. Ferris 1920-4-26 1954 San Mateo Slopes above Peters Creek, Santa Cruz Mountain Peninsula 610 Comment
  CAS-BOT-BC182767  Deschampsia cespitosa subsp. holciformis Peter Rubtzoff 1976-6-13 8639 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC201908  Deschampsia elongata W. R. Dudley 1908-6-26 s.n. San Mateo Edge of Dry Pond, Coal Mine Ridge Road Comment
  JROH5061  Deschampsia elongata John Hunter Thomas 1977-6-16 18773 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5674  Deschampsia elongata John Rawlings 2014-6-10 1276 San Mateo Jasper Ridge Biological Preserve, Stanford University; ecotone between dominant Salix exigua on sandy lake shore and Typha angustifolia in drying Searsville lake bed, 50 m south of the boat landing and old lab. Comment
  JEPS18169  Dicentra formosa Rimo Bacigalupi with Dempster, Robbins and Galen Smith 1956-5-15 5648 San Mateo center of Montara Mt. (on summit fire trail) 487 Comment
  UCR2938  Dicentra formosa Wm. Horn Jr. 1963-4-13 630413- 01 San Mateo Hillsborough, 2240 Redington Road 30 Comment
  CAS-BOT-BC911  Dicentra formosa subsp. formosa LeRoy Abrams 1902-4-13 2336 San Mateo Crystal Springs Comment
  CAS-BOT-BC705  Dicentra formosa subsp. formosa Walter Knight; Irja Knight 1964-5-30 614 San Mateo Guadalupe Road near big rock at Guadalupe Creek. Comment
  CAS-BOT-BC500927  Dichelostemma capitatum Ned Cahill 1974-4-18 128 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC500930  Dichelostemma capitatum Kim Marcus; David Schooly; Elizabeth McClintock 1975-4-13 s.n. San Mateo Above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC500932  Dichelostemma capitatum Javier Penalosa 1963-2-23 2661 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 182 Comment
  UCD148239  Dichelostemma capitatum subsp. capitatum Robert E. Preston 2013-3-28 2900 San Mateo Hillsborough, along Crystal Springs Rd where it crosses under the Junipero Serra Freeway. 99 Comment
  UCSB11443  Dichelostemma capitatum subsp. capitatum Olson, Jim 1962-4-17 San Mateo 10 miles east of Halfmoon Bay on Canada Road 30 Comment
  CAS-BOT-BC121856  Dirca occidentalis Lewis S. Rose 1939-4-12 39060 San Mateo Crystal Springs Lake 152 Comment
  JROH4204  Dirca occidentalis John H. Thomas 1970-1-1 15496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM274503  Dirca occidentalis Lyman D. Benson 1929-3-2 992 San Mateo East of Lake Searsville Comment
  RSA169345  Dirca occidentalis L. S. Rose 1964-3-9 s.n. San Mateo North end of Crystal Springs Lake 122 Comment
  SBBG26820  Dirca occidentalis L. S. Rose 1939-4-12 39060 San Mateo Crystal Springs Lake 152 Comment
  UC19691  Dirca occidentalis C. T. Blake 1893-5-27 San Mateo Pilarcitos Reservoir Comment
  SEINET7900488 Image available Dirca occidentalis John H. Thomas 1958-1 6980 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto 152 Comment
  JROH3376  Dodecatheon clevelandii subsp. patulum Ellen Searby 1955-4-1 78 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS48589  Dodecatheon hendersonii James G. Daly 1934-1-1 208 San Mateo San Gregorio Watershed Santa Cruz Mts., San Gregorio Watershed (branch of La Honda Canyon, sw San Mateo County) Comment
  POM287490  Dodecatheon hendersonii subsp. cruciatum Lyman Benson 1929-3-9 1000 San Mateo North slope of rolling foothills at Woodsides. Comment
  CDA39077  Dracunculus vulgaris M. K. Beyers 2013-5-31 s.n. San Mateo Montara State Beach, McNee Ranch Trail Trailhead. 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
  JROH3741  Drymocallis glandulosa var. wrangelliana John Rawlings, Toni Corelli 2013-5-7 1173 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the path to old quarry off of Trail 12. 109 Comment
  UC903041  Drymocallis glandulosa var. wrangelliana Ethel Crum 1934-4-29 1695 San Mateo one mi w Pescadero (near Pebble Beach); w of Pescadero, near Pebble Beach 30 Comment
  CAS-BOT-BC67883  Dryopteris arguta C. F. Baker 1902-1-15 320 San Mateo West side King's Mountain Comment
  CAS-BOT-BC67887  Dryopteris arguta Margaret A. Barry 1938-5-29 s.n. San Mateo Coal Mine Ridge Comment
  JEPS35165  Dryopteris arguta W. L. Jepson 1922-3-19 9538 San Mateo Lake San Andreas Comment
  JROH27  Dryopteris arguta John H. Thomas 1974-10-12 17623 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC389731  Dryopteris arguta J. Lovelle 1973-7-22 s.n. San Mateo Mt. Ellen Comment
  SEINET11619629  Dryopteris arguta Unknown 1932-1 8921 San Mateo Woodside Comment
  UCR240611  Dudleya T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3525 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  SD12572  Dudleya caespitosa Edith A. Purer 1933-7-27 5383 San Mateo 2.0 miles south of Pigeon Point. Comment
  UC420665  Dudleya farinosa Franklin P. Nutting 1893-7-15 San Mateo San Bruno Hill Comment
  CAS-BOT-BC109694  Dudleya farinosa Ira L. Wiggins 1929-7-14 3805 San Mateo Bluffs above Pescadero sand Beach. Comment
  JROH1813  Dysphania ambrosioides John H. Thomas 1976-10-16 18419 San Mateo Jasper Ridge Biological Preserve, Stanford University; along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fire place ruins downstream Comment
  JROH1824  Dysphania multifida John H. Thomas 1976-10-26 18408 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  UCR242653  Ehrharta erecta A. C. Sanders 2012-11-11 40518 San Mateo SF Bay Area, Daly City near Colma, between Junipero Serra Blvd. and San Pedro Rd. on Washington St. 56 Comment
  CAS-BOT-BC113150  Eleocharis palustris Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo In disturbed seep 600 feet SE of the Carter/Martin intersection, Guadalupe Hills, Daly City 68 Comment
  POM144805  Eleocharis palustris E. B. Copeland 1903-03 3340 San Mateo Searsville. Comment
  CAS-BOT-BC203879  Elymus X hansenii Elizabeth McClintock; Paul Reeberg 1989-5-30 s.n. San Mateo San Bruno Mountains. Owl Canyon 121 Comment
  JROH5115  Elymus X hansenii D. E. Breedlove 1971-5-31 19368 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH5796  Elymus X hansenii John Rawlings 2016-7-6 1892 San Mateo Jasper Ridge Biological Preserve, Stanford University; 80 yards west of Escobar Gate and 6 ft. south of Rd F 163 Comment
  JEPS100765  Elymus californicus Dean W. Taylor 2000-6-12 17464 San Mateo Montara Mountain, Scarper Peak, western slope of the peak near the summit 502 Comment
  UCD37959  Elymus glaucus Beecher Crampton 1962-6-11 6497 San Mateo San Mateo County, northern city limits of Pacifica, along State Highway 1, just southwest of its junction with Skyline Boulevard. Comment
  JROH5101  Elymus glaucus subsp. glaucus John H. Thomas 1962-5-31 9900 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near Westridge end of ridge. Comment
  CAS-BOT-BC235209  Elymus multisetus David D. Keck 1932-5-6 1469 San Mateo Belmont Comment
  JROH5134  Elymus multisetus W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Fire road - serpentine - 150 yds from end by farthest live oak clump (8 trees), 1 1/2 yd left of road. Comment
  JROH5279  Elymus triticoides Toni Corelli 2006-5-30 311 San Mateo Jasper Ridge Biological Preserve, Stanford University; along roadside at junction of main gate Road L and Road K to Leonard's residence 115 Comment
  JROH3044  Epilobium brachycarpum John H. Thomas 1972-8-18 16152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15818  Epilobium brachycarpum John Rawlings, Ken Hickman 2016-7-21 1905 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; near a concrete drainage ditch a few yards down-slope from the San Francisco Watershed boundary fence 122 Comment
  RSA18504  Epilobium brachycarpum Carl B. Wolf 1927-7-14 616 San Mateo Summit of Kings Mountain Rd. Comment
  OBI11877  Epilobium canum Lewis S. Rose 1965-9-4 65099 San Mateo Skyline Blvd and Half Moon Bay Rd. Cahill ridge 244 Comment
  POM32532  Epilobium ciliatum subsp. watsonii A. D. E. Elmer 1903-07 4962 San Mateo Crystal Springs Lake Comment
  POM32709  Epilobium minutum C. F. Baker 1902-5-4 749 San Mateo Woodside. Comment
  CAS-BOT-BC389679  Epipactis gigantea Mary Wicksten 1968-7-6 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  UCD103601  Epipactis helleborine Chris Bronny 2010-9-21 s.n. San Mateo Along channelized banks of Belmont Creek S of Harbor Blvd and E of Industrial Blvd. 15 Comment
  JEPS79604  Equisetum arvense Edward Lee and Ann Johnson 1974-8-24 San Mateo near Pillar Point (Princeton Marsh) Comment
  CAS-BOT-BC57598  Equisetum telmateia Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo Comment
  CAS-BOT-BC57616  Equisetum telmateia J. H. Thomas 1949-3-29 199 San Mateo King's Mt. Road Comment
  JROH5144  Eragrostis pectinacea var. pectinacea Ann Lambrecht 2005-8-24 20 San Mateo Jasper Ridge Biological Preserve, Stanford University. Sand Hill Road fence 5 or 6 m from Bear Creek crossing. 89 Comment
  JROH5721  Eragrostis pectinacea var. pectinacea John Rawlings 2015-9-22 1642 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  CAS-BOT-BC299882  Erechtites glomeratus Phillip C. Wheeler 1965-6-19 s.n. San Mateo Crocker Land Park, Brisbane, San Bruno Mountain Comment
  CAS-BOT-BC299887  Erechtites glomeratus Alice Eastwood 1915-6-13 s.n. San Mateo Granada Comment
  UC1244716  Eremocarpus setiger John H. Thomas 1959-8-22 8076 San Mateo about 5 mi sw Palo Alto; Jasper Ridge 152 Comment
  JROH3148  Eriastrum abramsii John Hunter Thomas 1977-6-16 18770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC618364  Eriastrum abramsii Lewis S. Rose 1937-9-21 37659 San Mateo Emerald Lake 182 Comment
  CAS-BOT-BC512627  Eriastrum abramsii Lewis S. Rose 1937-9-21 37659 San Mateo Emerald Lake 182 Comment
  UCR126191  Erica canaliculata H. Schironi 1979-1-18 s.n. San Mateo Near Half Moon Bay Comment
  JEPS19177  Ericameria ericoides Dr. L. M. Newlon 1921-1-1 242 San Mateo Sea shore from Salada to Mussel Comment
  UCSC007741  Ericameria ericoides Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  POM359360  Ericameria ericoides var. ericoides D. D. Keck 1931-10-5 1286 San Mateo 1 mile north of Salada Beach, 200 meters from the ocean. Comment
  JROH647  Erigeron bonariensis Toni Corelli 2006-8-16 326 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, along San Francisquito Creek in dry creek bed below Dennis Martin marker site 70 Comment
  JROH690  Erigeron foliosus var. foliosus John H. Thomas 1971-5-30 15968 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH689  Erigeron foliosus var. foliosus W. R. Dudley 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; top of ridge near Searsville Dam, Portola Valley Comment
  UCR240776  Erigeron glaucus T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3521 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  CAS-BOT-BC295077  Erigeron glaucus J. P. Smith 1924-11-1 s.n. San Mateo Farralone Ids. Comment
  CAS-BOT-BC295088  Erigeron glaucus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. East facing slope below parking lot Comment
  POM289038  Erigeron glaucus Lyman Benson 1930-6-14 2152 San Mateo San Gregorio. 30 Comment
  CAS-BOT-BC216129  Eriodictyon californicum Walter Knight 1964-9-14 850 San Mateo Peak Mt., west of summit Comment
  JROH2717  Eriodictyon californicum John H. Thomas 1959-4-5 7667 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the western end of ridge Comment
  JROH2721  Eriodictyon californicum John H. Thomas 1971-5-30 15969 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA15207  Eriodictyon californicum Carl B. Wolf 1926-10-19 90 San Mateo La Honda Grade. Santa Cruz Mtns. Comment
  SD38515  Eriodictyon californicum Edith A. Purer 1933-5-25 3650 San Mateo La Honda Grade Comment
  UCSB16624  Eriodictyon californicum Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  SEINET12271679  Eriodictyon californicum J. H. Thomas 1959-1 7667 San Mateo Jasper Ridge, ca 5 mi SW of Palo Alto 152 Comment
  SEINET12271949  Eriodictyon californicum Unknown 1932-1 9151 San Mateo Comment
  CAS-BOT-BC250540  Eriogonum gracile Gordon H. True 1937-7-31 831 San Mateo Alpine Road near Skyline Blvd. Comment
  CAS-BOT-BC250550  Eriogonum gracile Ned Cahill 1974-10-8 383 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC250542  Eriogonum gracile W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Whipple Road near Crystal Springs Lake Comment
  SD12564  Eriogonum latifolium Edith A. Purer 1933-7-27 5370 San Mateo Send 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
  UC77427  Eriogonum latifolium C. F. Baker 1903-6-30 3359 San Mateo Pilarcitos Comment
  UCSB461  Eriogonum latifolium Myrick, Donald 1966-6-11 San Mateo Pigeon Point on Highway #1 south of San Francisco Comment
  RSA176255  Eriogonum latifolium Robert F. Thorne, Percy C. Everett 1963-6-9 32238 San Mateo On top of San Bruno Mountain 335 Comment
  RSA273144  Eriogonum latifolium Glenn A. Gorelick 1967-5-12 s.n. San Mateo Approximately two miles from coast in San Bruno Mountains Comment
  UCSC007742  Eriogonum latifolium Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC264781  Eriogonum luteolum L. R. Abrams 1902-9-21 2988 San Mateo Crystal Lake Comment
  JEPS111094  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -2 San Mateo Crystal Springs Reservoir, south edge of serpentine (sludge) talus slope, below Hwy 280 on San Francisco Watershed land, 0.1 mi N of Hwy 92 (Ralston Ave.) east of junction with Skyline Blvd 121 Comment
  POM165062  Eriogonum luteolum A. D. E. Elmer 1903-06 4309 San Mateo Belmont Comment
  SD38964  Eriogonum luteolum Edith A. Purer 1933-8-25 5510 San Mateo Near Schullser Blvd, on hillside, Skyline Blvd. Comment
  JROH3224  Eriogonum luteolum var. luteolum A. G. Vestal 1937-7-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Southeast side of ridge not far from Stanford property line. Comment
  RSA51396  Eriogonum luteolum var. luteolum L. S. Rose 1949-8-14 49164 San Mateo Emerald Lake, hills west of Redwood City. Comment
  JROH3238  Eriogonum luteolum var. luteolum Carol Zabel 1989-8-27 33 San Mateo Jasper Ridge Biological Preserve, Stanford University. Herb's serpentine loop, top of Trail 5. Comment
  SBBG32434  Eriogonum vimineum L. S. Rose 1964-9-9 64073 San Mateo Emerald Lake, W of Redwood City 243 Comment
  CAS-BOT-BC304073  Eriophyllum confertiflorum Fred Hemphill 1973-4-22 769 San Mateo San Carlos. N of Malabar Rd and Melendry Dr 207 Comment
  CAS-BOT-BC304079  Eriophyllum confertiflorum C. F. Leitholt 1894-5-30 s.n. San Mateo Santa Cruz Mt Peninsula. Hill back of Spring Valley Water Works below Belmont Comment
  SEINET11850692  Eriophyllum confertiflorum Unknown 1932-1 9194 San Mateo no further locality Comment
  JROH697  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1967-5-31 12942 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH701  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1974-6-30 17456 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC301255  Eriophyllum lanatum var. arachnoideum L. R. A. 1902-5-17 2472 San Mateo Kings Mountain Comment
  CAS-BOT-BC301256  Eriophyllum lanatum var. arachnoideum Peter H. Raven 1957-6-24 10963 San Mateo Just south of Linda Mar Comment
  POM53930  Eriophyllum lanatum var. arachnoideum C. F. Baker 1902-5-10 797 San Mateo Kings Mountain. Comment
  UC896359  Eriophyllum staechadifolium Lewis S. Rose 1938-8-18 38233 San Mateo 3 mi s San Francisco County line; Skyline Blvd. 60 Comment
  UCR240615  Eriophyllum staechadifolium T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3531 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  JROH2594  Erodium botrys John H. Thomas 1969-4-12 14888 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JEPS121446  Erodium cicutarium Adam C. Schneider with C. Matt Guilliams 2013-2-2 14 San Mateo Crystal Springs Reservoir Comment
  UC174154  Eryngium armatum Katharine Brandegee June, 1905 San Mateo Moss Beach Comment
  JROH5639  Eryngium jepsonii John Rawlings 2014-6-7 1262 San Mateo Jasper Ridge Biological Preserve, Stanford University. 100 yards west from Escobar Gate, 20 yards north of road F. 161 Comment
  SEINET5549532  Erysimum capitatum H. S. Gentry 1931-1 7 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  CAS-BOT-BC54818  Erysimum franciscanum H. E. Parks; S. T. Parks 1930-3-10 0401 San Mateo Spring Valley Lakes. Comment
  CAS-BOT-BC54828  Erysimum franciscanum W. R. Dudley 1894-3-27 s.n. San Mateo Santa Cruz Peninsula. On ledges below Crystal Springs Dam. Comment
  CAS-BOT-BC54834  Erysimum franciscanum G. B. Rossbach 1955-3-12 568 San Mateo Just inland and southeast of Devil's Slide, west edge of Montara Mountains. 121 Comment
  CAS-BOT-BC54835  Erysimum franciscanum G. B. Rossbach 1955-3-12 569 San Mateo North face of Devil's Slide, south of Pedro Point, west edge of Montara Mountains. 121 Comment
  CAS-BOT-BC54846  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 807 San Mateo Upper slope of the San Bruno Hills. Comment
  CAS-BOT-BC54849  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-3-26 901 a and 901b ripe pods San Mateo Dunes just back of high sea cliff very near Sharp Park (Salada Beach). Comment
  CAS-BOT-BC54861  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-6-4 914 San Mateo Above southeast shore of Crystal Springs Lake, southwest base Pulgas Ridge. 91 Comment
  CAS-BOT-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-BC54870  Erysimum franciscanum Craig Martz 1985-4-15 205 San Mateo South end of Devil's Slide, both sides of SR1. From coast to saddle between San Pedro and Montara Mountain. 304 Comment
  CAS-BOT-BC54883  Erysimum franciscanum Phillip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountains. Colma Canyon - east end. Comment
  CAS-BOT-BC54887  Erysimum franciscanum Oliver W. Norvell 1931-3-2 1410 San Mateo Near Crystal Springs Lake. Comment
  CDA24853  Erysimum franciscanum D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  LA204415  Erysimum franciscanum H. E. Parks; S. T. Parks 1930-3-10 401 San Mateo Spring Valley Lakes Comment
  RSA101843  Erysimum franciscanum G. B. Rossbach 1939-3-28 905 San Mateo Below Crystal Springs Lake 61 Comment
  RSA396108  Erysimum franciscanum Quinn P. Sinnott 1976-2-9 602 San Mateo Path leading from Radio Road, northern end of San Bruno Mountains 305 Comment
  UC1034943  Erysimum franciscanum G. B. and R. P. Rossbach 1938-4-3 807 San Mateo moist ravine in upper slope of hills San Bruno Hills Comment
  UC10561  Erysimum franciscanum J. Burtt Davy 1895-4-20 1035 San Mateo Lake San Andreas Comment
  UC1084387  Erysimum franciscanum G. Thomas Robbins 1937-4-11 93 San Mateo meadow near Spring Valley Lakes (along road to Woodside) Comment
  SEINET11989205  Erysimum franciscanum E. McClintock, Knight, W.; Knight, I. 1982-1 4638 San Mateo Kamchatka Point, San Bruno Mountain Comment
  SJSU12766  Erysimum franciscanum S. L. Jones 1986-4-6 87 San Mateo Montara Mt 188 Comment
  CHSC59820  Erythranthe guttata Jan M. Karaz 1979-5-28 78 San Mateo 2.5 mi west of Hwy 280 towards San Francisco Bay on Farm Hill Blvd, along Stulsaft Creek in Stulsaft Park. Comment
  SJSU11565  Erythranthe guttata J. E. Hagerty 1950-5-20 San Mateo Pescadero Comment
  JROH5683  Erythranthe microphylla John Rawlings 2015-3-15 1357 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine north side of ridge. 176 Comment
  JROH5889  Eschscholzia californica Ruth Porter 1998-4-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA445603  Eschscholzia californica subsp. californica Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. 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
  CAS-BOT-BC202737  Euonymus occidentalis L. R. Abrams 1906-9-24 s.n. San Mateo Goat Ranch Canon [Canyon], Santa Cruz Mts. near Portola Comment
  JROH1798  Euonymus occidentalis var. occidentalis Elmer I. Applegate 1895-5-11 67 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  UC1071565  Euonymus occidentalis var. occidentalis N. K. Carlson 1935-7-3 117 San Mateo 3 mi. s. Bellvale; Santa Cruz Quad. Comment
  RSA176863  Euphorbia epithymoides John H. Thomas 1964-4-30 10342 San Mateo Palo Alto. San Francisquito Creek at University Avenue bridge. Comment
  JROH5833  Euphorbia oblongata Ann Lambrecht, Teri Barry 2014-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in now-dry bed of San Francisquito Creek Comment
  JROH1977  Euphorbia spathulata John Hunter Thomas 1977-6-7 18735 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1536887  Eurybia radulina G. H. True Jr. 1937-7-31 829 San Mateo near, (Alpine Road near Skyline Blvd.) Skyline Blvd. 182 Comment
  CAS-BOT-BC310618  Eurybia radulina L. R. Abrams 1906-9-24 s.n. San Mateo Goat Ranch, Santa Cruz Mountains near Portola Comment
  JROH528  Eurybia radulina L. R. Abrams 1916-10-14 6350 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  RSA176410  Euthamia occidentalis John H. Thomas 1964-10-2 10511 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  SEINET206289 Image available Festuca californica Rimo Bacigalupi, L. R. Heckard; J. Roof 1961-4-24 7613 San Mateo Just below rocky spur due north of true summit of San Bruno Mountain directly below and northeast of KQED radio station 343 Comment
  JROH5179  Festuca elmeri John Rawlings 2005-5-11 1010 San Mateo Jasper Ridge Biological Preserve, Stanford University; between Trail 7 and Bird Trail, about 100 yards east of Hillside lab 151 Comment
  RSA100977  Festuca idahoensis G. Oberlander 1950-5-6 875 San Mateo Sawyer Ridge, San Francisco Watershed Reserve. Comment
  JROH5497  Festuca myuros John H. Thomas 1973-3-12 16498 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278861  Festuca occidentalis W. R. Dudley 1900-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Above La Honda Comment
  JROH5287  Festuca perennis John Hunter Thomas 1986-5-1 23992 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low flow crossing. Comment
  SD30561  Festuca perennis Edith A. Purer 1933-8-13 5418 San Mateo Santa Clara Valley near Belmont Comment
  UCR253346  Foeniculum vulgare A. C. Sanders 2014-8-3 41231 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  SEINET10805323  Foeniculum vulgare Walter H. Lewis 1989-10-31 Lewis 14676 San Mateo Redwood City, Seapark Blvd., past area by San Francisco Bay. Comment
  SD37687  Fragaria chiloensis Edith A. Purer 1933-5-14 3605 San Mateo Pescadero Comment
  SJSU10519  Fragaria vesca L. V. Giacomino 1966-4-30 San Mateo Montara Mt 304 Comment
  JROH5912  Fragaria vesca L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near San Fracisquito Creek, east of the Redwood grove Comment
  UCD113234  Fragaria vesca W. A. Harvey; J. M. Tucker 1948-6-29 1705 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC52674  Frangula californica subsp. californica James Newman 1951-6-5 96 San Mateo Searsville Lake Comment
  JROH3537  Frangula californica subsp. californica John H. Thomas 1968-5-22 14459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3572  Frangula californica subsp. tomentella John Hunter Thomas 1981-2-14 20212 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3573  Frangula californica subsp. tomentella John Hunter Thomas 1981-2-14 20214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC211603  Frankenia salina L. R. Abrams 1906-9-29 s.n. San Mateo Cooley's Landing Comment
  RSA14513  Frankenia salina L. S. Rose 1933-7-20 33304 San Mateo Granada. Comment
  CAS-BOT-BC211609  Frankenia salina John Thomas Howell 1924-9-28 659 San Mateo Leslie Salt Refinery Comment
  UCSB42578  Fritillaria affinis Nixon, E. 1980-4-3 San Mateo 1 mile down Sawyer Camp road, at Millbrae exit off of Fwy. 280 Comment
  CAS-BOT-BC130383  Fritillaria liliacea Lewis S. Rose 1933-4-2 33049 San Mateo Redwood City Comment
  JEPS61919  Fritillaria liliacea Inez Smith 1915-3-15 San Mateo Hillsboro Comment
  UCD78148  Fumaria capreolata Robert E. Preston 2008-4-1 2600 San Mateo Lower Crystal Springs Reservoir, at jct Hwy 92 and Hwy 35 92 Comment
  JEPS83069  Galium Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 434 San Mateo along crest of ridge w gravel road (ca 3.2 km nw of Pilarcitos Dam and 2.4 km wsw of San Andreas Dam); San Francisco Watershed Reserve, Fifield Ridge 388 Comment
  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
  JROH3786  Galium murale John H. Thomas 1958-5-10 7138 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
  JROH3814  Galium porrigens var. porrigens John Hunter Thomas 1983-4-28 21782 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3820  Galium triflorum Toni Corelli 2004-4-22 274 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 1 just past the first redwood grove 79 Comment
  RSA120734  Galium triflorum S. S. Tillett, I. Sternback 1956-6-24 530 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  POM58032  Gamochaeta ustulata E. B. Copeland 1903-6-18 3312 San Mateo Montara Point. Comment
  CAS-BOT-BC303468  Gamochaeta ustulata Paul F. Covel 1936-4-24 272 San Mateo Skyline Blvd Comment
  CAS-BOT-BC194558  Garrya elliptica Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC194571  Garrya elliptica A. D. E. Elmer 1903-2-1 4469 San Mateo Portola Comment
  UCD121102  Garrya elliptica R. E. Dengler 1960-4-10 9 San Mateo Jasper Ridge, Stanford Biological Reserve. 160 Comment
  CAS-BOT-BC278661  Gastridium phleoides C. F. Leitholt 1894-7-30 s.n. San Mateo La Honda Comment
  CAS-BOT-BC278665  Gastridium phleoides C. F. Leitholt 1894-7-30 s.n. San Mateo Santa Cruz Mountain Peninsula. La Honda Comment
  CAS-BOT-BC278666  Gastridium phleoides C. F. Leitholt 1894-7-30 s.n. San Mateo Santa Cruz Mountain Peninsula. La Honda Comment
  JROH5187  Gastridium phleoides John H. Thomas 1977-4-29 18568 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA129640  Gastridium phleoides N. K. Carlson 1935-6-20 73 San Mateo Between head of Oil and Slate Creek and ridge. Comment
  JROH2013  Genista monspessulana John Hunter Thomas 1983-4-3 21307 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH5790  Geranium purpureum Toni Corelli 2016-4-25 1250 San Mateo Jasper Ridge Biological Preserve, Stanford University; outside exclosure Rd. G 121 Comment
  UC774606  Gilia achilleifolia subsp. achilleifolia Carl B. Wolf 1938-4-24 9401 San Mateo 1/4 mi sw San Francisquito Creek Bridge (Stanford University); , sw of San Francisquito Creek Bridge 60 Comment
  UC133800  Gilia achilleifolia subsp. multicaulis A. Eastwood 1893-5-19 San Mateo San Carlos Mt. 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
  UCSC008259  Gilia clivorum Randall Morgan 1987-4-29 s.n. San Mateo 1st big canyon at Devil's Slide Comment
  CAS-BOT-BC266511  Githopsis diffusa Margaret A. Barry 1937-5-15 s.n. San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC303680  Glebionis coronaria J. H. Thomas 1961-5-7 9321 San Mateo San Bruno Mt. At W end of mountain 243 Comment
  CAS-BOT-BC303682  Glebionis coronaria Dean Wm. Taylor 1988-4-8 9516 San Mateo Santa Cruz Mts. San Bruno Mt, N slope of SE ridge of the mountain, near the ridgecrest. Right-of-way of E-most set of PG&E high-voltage powerlines crossing the mt 237 Comment
  CAS-BOT-BC303687  Glebionis coronaria Walter & Irja Knight 1967-6-6 2071 San Mateo San Bruno Mt. Point San Bruno Comment
  JROH5201  Glyceria X occidentalis John Rawlings 2007-6-9 1022 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few meters downstream from the Bear Creek and San Francisquito Creek confluence on a gravel bar on the NW side of San Francisquito Creek. 81 Comment
  JROH2024  Glycyrrhiza lepidota John H. Thomas 1971-8-7 16016 San Mateo Jasper Ridge Biological Preserve, Stanford University; near west side of Searsville Lake Comment
  POM55189  Gnaphalium californicum A. D. E. Elmer 1903-06 4291 San Mateo Crystal Springs Lake. Comment
  CDA6003  Gnaphalium canescens subsp. beneolens A. C. Browne 1950-8-12 San Mateo Alpine Creek. 0 Comment
  RSA3894  Gnaphalium chilense I. L. Wiggins 1929-7-4 3792 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach Comment
  SEINET11849363  Gnaphalium chilense L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt. 1 Comment
  RSA101023  Gnaphalium palustre G. Oberlander 1949-7-30 322 San Mateo San Andreas Lake, San Francisco Watershed Reserve. Comment
  UC88305  Gnaphalium palustre C. F. Baker 1902-10-20 1860 San Mateo Searsville Pacific Coast, Searsville Comment
  RSA195655  Gnaphalium ramosissimum John H. Thomas 1958-8-1 7376 San Mateo Just N of mouth of San Gregorio Creek 30 Comment
  CDA6058  Gnaphalium stramineum A. C. Browne 1950-8-12 San Mateo Alpine Creek. 0 Comment
  RSA294163  Grindelia Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4226 San Mateo N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  CAS-BOT-BC304517  Grindelia hirsutula L. R. Abrams 1909-8-2 4249 San Mateo Santa Cruz Peninsula. Pebble Beach. Pescadero 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-BC304530  Grindelia hirsutula L. R. A. 1909-8-2 4249 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC304532  Grindelia hirsutula W. R. Dudley 1897-10-10 s.n. San Mateo At Pilar Point Comment
  CAS-BOT-BC304537  Grindelia hirsutula J. H. Thomas 1954-5-28 4243 San Mateo East facing slopes of San Bruno Mountain, just north of South San Francisco 91 Comment
  POM190261  Grindelia hirsutula D. D. Keck 1932-5-25 1783 San Mateo Hills two miles W of Belmont Comment
  POM57689  Grindelia hirsutula C. F. Baker 1903-4-8 s.n. San Mateo San Andreas Lake Comment
  UC520390  Grindelia hirsutula Delzie Demaree 1933-6-23 10378 San Mateo Pigeon Point Comment
  CAS-BOT-BC304520  Grindelia hirsutula V. F. Hesse 1961-8-24 3026 San Mateo Near, north of, Pigeon Point 4 Comment
  JROH815  Grindelia hirsutula John H. Thomas 1970-4-4 15541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA21911  Grindelia stricta var. angustifolia L. S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  POM181504  Grindelia stricta var. platyphylla H. F. Copeland 1928-2-25 982 San Mateo Montara. Comment
  POM288781  Grindelia stricta var. platyphylla Lyman Benson 1934-7-4 6101 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  RSA18368  Grindelia stricta var. platyphylla C. B. Wolf 1927-6-29 540 San Mateo South of Pebble Beach near Pescadero Comment
  RSA502346  Grindelia stricta var. platyphylla D. W. Taylor 1988-6-5 9789 San Mateo Hwy 1 at 'Big Slide,' a steep, eroding section of coastal bluff 1 mile N of Montara; Santa Cruz Mountains. 76 Comment
Read comments
Aug 25 2016
  CAS-BOT-BC309543  Helenium puberulum A. D. E. Elmer 1903-7-1 4972 San Mateo Crystal Springs Lake Comment
  JROH829  Helenium puberulum John H. Thomas 1961-6-14 9542 San Mateo Jasper Ridge Biological Preserve, Stanford University; along stream below dam Comment
  JROH834  Helenium puberulum Richard L. Garber 1971-7-13 75 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18443  Helenium puberulum C. B. Wolf 1927-6-29 565 San Mateo 3 miles south of San Gregorio. Comment
  JROH848  Helianthella californica var. californica Elmer I. Applegate 1895-5-11 264 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  JROH853  Helianthella californica var. californica John Hunter Thomas 1978-4-20 19081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH854  Helianthella californica var. californica John Hunter Thomas 1980-5-8 19942 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH861  Helianthella californica var. californica John Hunter Thomas 1989-5-9 24722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305338  Helianthella castanea G. Ward 1941-4-12 s.n. San Mateo Brisbane hills Comment
  CAS-BOT-BC305334  Helianthella castanea Miss E. Cannon 1892-6-1 s.n. San Mateo Hills near the Bay, South S.F. Comment
  RSA176823  Helianthemum scoparium var. scoparium John H. Thomas 1961-5-5 9220 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. 152 Comment
  SD39700  Heliotropium curassavicum Edith A. Purer 1933-7-27 5360 San Mateo Pigeon Point Comment
  CAS-BOT-BC305927  Helminthotheca echioides Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC305930  Helminthotheca echioides R. E. Frenkel 1963-12-7 331 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.9 mile south-west of Spring Valley Road Comment
  JROH1167  Helminthotheca echioides John H. Thomas 1970-7-5 15668 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC313451  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1902-5-11 2446 San Mateo Crystal Springs Comment
  CAS-BOT-BC314910  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-4-29 203 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC314912  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-7-14 360 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC314917  Hemizonia congesta subsp. luzulifolia J. H. Thomas 1962-11-4 10014 San Mateo Jasper Ridge, Stanford University Biological Experimental Area near Westridge end Comment
  CAS-BOT-BC314927  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-4-29 188 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  SBBG39532  Hemizonia congesta subsp. luzulifolia L. S. Rose 1970-7-26 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  SD49786  Hemizonia congesta subsp. luzulifolia J. H. Thomas 1958-6-11 7228 San Mateo 4.3 miles due east of Belmont near Crystal Springs Reservoir. 89 Comment
  SJSU15950  Hemizonia congesta subsp. luzulifolia John Rawlings, Ken Hickman 2016-5-26 1828 A San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north, down-slope from the San Francisco Watershed boundary fence 122 Comment
  UC897702  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1937-9-21 37662 San Mateo w Redwood City; Emerald Lake 182 Comment
  CAS-BOT-BC313455  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1908-8-1 s.n. San Mateo Summit Crystal Springs-Belmont Road Comment
  CAS-BOT-BC314930  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-5-20 s.n. San Mateo Summit between San Mateo and Crystal Springs Lakes Comment
  CAS-BOT-BC314932  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-6-13 s.n. San Mateo Milbrae hills Comment
  SEINET5782062 Image available Hemizonia corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach Comment
  RSA0034608  Hemizonia corymbosa subsp. corymbosa C. B. Wolf 1927-6-29 538 San Mateo South of Pebble Beach near Pescadero Comment
  RSA184823  Hemizonia corymbosa subsp. corymbosa L. S. Rose 1965-9-4 65100 San Mateo Skyline Blvd and half Moon Bay Road, Cahill Ridge 244 Comment
  POM360312  Hemizonia luzulifolia E. A. Purer 1933-8-4 18258 San Mateo Bayshore Hwy. Comment
  POM360316  Hemizonia luzulifolia E. S. Spalding 1923-8-3 s.n. San Mateo 3 miles W of Redwood City, near Pulgas Tunnel. Comment
  RSA81678  Hemizonia luzulifolia James I. McMurphy 1907-8-6 s.n. San Mateo E of causeway, Crystal Springs Lakes. Comment
  RSA81652  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1908-8-20 s.n. San Mateo 2/3 [of the way] from causeway to entrance of canyon, Crystal Springs Lakes. Comment
  RSA136195  Hemizonia pungens subsp. maritima John H. Thomas 1954-5-28 4231 San Mateo Redwood City; near intersection of Bayshore and Main Street 0 Comment
  JROH249  Heracleum maximum John H. Thomas 1961-5-5 9210 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  RSA176771  Heracleum maximum John H. Thomas 1961-5-5 9210 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  JROH252  Heracleum maximum John Hunter Thomas 1986-5-1 23989 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing near San Francisquito Creek Comment
  JEPS83137  Hesperevax sparsiflora var. brevifolia Lewis S. Rose 1970-5-3 70036 San Mateo w San Mateo; Black Mountain, Skyline Blvd. 121 Comment
  JROH900  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1991-5-9 25044 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4231  Hesperocnide tenella John Hunter Thomas 1981-5-5 20539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC176205  Hesperolinon congestum L. S. Rose 1931-5-15 s.n. San Mateo Emerald Lake west of Redwood City Comment
  CAS-BOT-BC176206  Hesperolinon congestum Marion Gallagher 1978-6-1 s.n. San Mateo At Farm Hill above Redwood City Comment
  CAS-BOT-BC176213  Hesperolinon congestum A. A. Heller 1907-5-28 8572 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  JROH2938  Hesperolinon micranthum John Hunter Thomas 1992-5-25 25342 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC422604  Hesperomecon linearis A. D. E. Elmer 1903-5-1 4594 San Mateo San Bruno Hills Comment
  CAS-BOT-BC148473  Heteromeles arbutifolia A. D. E. Elmer 1903-2-1 s.n. San Mateo Portola Comment
  HSC67230  Heteromeles arbutifolia Richard Spjut 1980-5-15 6195 San Mateo Palo Alto Foothill Park along Steep Hollow Trail, 1/4 mi. from jct. with Wildhorse Valley 229 Comment
  JROH3685  Heteromeles arbutifolia John Hunter Thomas 1988-6-26 24529 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH907  Heterotheca grandiflora John Hunter Thomas 1991-11-21 25110 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  CAS-BOT-BC310762  Heterotheca sessiliflora subsp. echioides E. A. McGregor 1906-9-23 s.n. San Mateo Corte de Madera Comment
  CAS-BOT-BC310767  Heterotheca sessiliflora subsp. echioides Lewis S. Rose 1966-8-20 66087 San Mateo San Bruno Mountain, Summit 365 Comment
  UCR121560  Heuchera micrantha George K. Helmkamp, E. A. Helmkamp 1999-6-28 4975 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  SEINET9737102  Heuchera micrantha Unknown 1933-4-23 10384 San Mateo White House Creek Comment
  RSA0066088  Heuchera pilosissima John H. Thomas 1961-5-7 9283 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  HSC23782  Hieracium albiflorum Mary Katherine Wicksten 1971-6-17 56 San Mateo Huddart Park; near Werder Flat, on the road to family campground Comment
  RSA120374  Hierochloe occidentalis Le Roy Abrams 1904-3-7 s.n. San Mateo Bear Gulch, Santa Cruz Mountains Comment
  RSA14316  Hierochloe occidentalis Elmer I. Applegate 1895-3-9 815 San Mateo near summit of Coast Range west of Stanford University Comment
  UC1137088  Hierochloe occidentalis August L. Hormay 1932-3-6 San Mateo near Pescadero (redwood belt); Blumequist Mill Comment
  UC822103  Hierochloe occidentalis L. R. Abrams 1904-3-7 San Mateo Bear Gulch Santa Cruz Mountain Peninsula 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
  RSA0016773  Hippuris vulgaris W. R. Dudley 1909-10-4 s.n. San Mateo W. twin-pond, N San Mateo County; Santa Cruz Mt. Peninsula. 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
  CAS-BOT-BC55442  Hirschfeldia incana Ned Cahill 1974-10-8 375 San Mateo About 3 miles westward from Redwood City. Near the intersection of Canada and Edgewood Roads. Comment
  CAS-BOT-BC55443  Hirschfeldia incana J. H. Thomas 1963-8-4 10234 San Mateo About 2.5 miles inland from San Gregorio along the highway. Comment
  CAS-BOT-BC376132  Holcus lanatus Ricardo Villasenor, Jr. 1993-7-1 s.n. San Mateo San Francisco International Airport, west of Hwy. 101 Comment
  POM274869  Holodiscus discolor Lyman D. Benson 1937-8-15 8487 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains. 244 Comment
  CAS-BOT-BC150064  Holodiscus discolor var. discolor Saichi Kawahara 1968-7-29 460 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  JROH3693  Holodiscus discolor var. discolor John Hunter Thomas 1978-7-2 19249 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD85414  Hordeum brachyantherum Lewis S. Rose 1963-4-27 63001 San Mateo Skyline Blvd. West of San Mateo. 91 Comment
  SJSU15413  Hordeum brachyantherum subsp. brachyantherum Toni Corelli 2010-5-21 671 San Mateo Pescadero State Beach and Marsh Natural Preserve. North Pond Trail 9 Comment
  UC163001  Hordeum brachyantherum subsp. brachyantherum Dr. E. B. Copeland 1903-6-10 3304 San Mateo Montara Point Comment
  JROH5234  Hordeum marinum subsp. gussoneanum John H. Thomas 1955-5-6 4982 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent grassy slopes. Comment
  JROH5244  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1981-5-19 20606 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5778  Hordeum marinum subsp. gussoneanum John Rawlings 2016-4-19 1725 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E at Trail 11 108 Comment
  SBBG33373  Hordeum marinum subsp. gussoneanum A. D. E. Elmer -May-1901 1660 San Mateo Cooley's [Cooley] Landing Comment
  SEINET11678403  Hordeum murinum E. A. Purer 1933-1 5372 San Mateo 2 mi S of Pigeon Point Comment
  RSA181231  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10152 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  RSA181227  Horkelia californica John H. Thomas 1964-6-19 10425 San Mateo 0.9 miles S of Tunitas Creek near Coast Hwy, 61 Comment
  UC1128147  Horkelia californica H. S. Yates 1935-2-3 5008 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz quad. 30 Comment
  SD37817  Hosackia stipularis Edith A. Purer 1932-7-18 4004 San Mateo King's Mountain, mountainside Comment
  CDA5497  Hydrocotyle moschata E. L. Labadie 1962-3-15 San Mateo Jack Fujiki property, 135 N. Idaho, San Mateo . 0 Comment
Read comments
Aug 7 2014
  CAS-BOT-BC400965  Hypericum anagalloides Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo San Bruno Mountains. North facing slope to south of new Guadalupe Parkway just before it meets Radio Road Comment
  CAS-BOT-BC400966  Hypericum anagalloides Elizabeth McClintock; Paul Reeberg No date on label s.n. San Mateo San Bruno Mountains Comment
  UCR247521  Hypericum canariense C. Kozak 2011-6-16 s.n. San Mateo Central Coast, Pescadero, Cloverdale Ranch, on the east side of Hwy 1 c. 1.1 mi north of Gazos Creek Road Comment
  JROH916  Hypochaeris glabra John H. Thomas 1973-4-20 16581 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC007758  Hypochaeris glabra Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CHSC364  Hypochaeris radicata J. Turner 1930-5-2 San Mateo Moss Beach. 6 Comment
  JROH926  Hypochaeris radicata John H. Thomas 1967-6-1 12965 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH940  Hypochaeris radicata John Hunter Thomas 1988-5-16 24464 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  CAS-BOT-BC311484  Hypochaeris radicata George Oberlander 1949-4-17 55 San Mateo San Francisco Watershed Reserve. On top of Sawyer Ridge Comment
  UC1252086  Iris douglasiana J. H. Thomas 1959-4-4 7656 San Mateo about 0.7 mi s Gazos Creek (about 6.5 mi s-ward from Pescadero) 45 Comment
  UC143469  Iris douglasiana Alice Eastwood Apr 1898 San Mateo Purissima Comment
  CAS-BOT-BC133651  Iris longipetala Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo Slope above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC133655  Iris longipetala C. F. B. 1902-3-22 348 San Mateo South San Francisco Comment
  CAS-BOT-BC133656  Iris longipetala John H. Thomas 1955-4-6 4838 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  CAS-BOT-BC133674  Iris longipetala Walter Knight; Irja Knight 1964-3-16 985 San Mateo Point San Bruno Comment
  UC571173  Iris macrosiphon A. E. Borell 1928-4-1 58 San Mateo San Bruno Mountains Comment
  JROH4429  Iris pseudacorus J. H. Thomas 1958-5-11 7165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  UC184381  Isocoma menziesii var. vernonioides Harriet A. Walker 1915-9-19 3833 San Mateo near Uncle Tom's Cabin; road to Burlingame Comment
  CAS-BOT-BC112612  Isolepis cernua John Hunter Thomas 1959-7-8 8017 San Mateo Low moist coastal bluffs as Pescadero Beach. Comment
  CAS-BOT-BC112620  Isolepis cernua W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Beach pasture, Pescadero Comment
  UC1100777  Isolepis cernua Malcolm A. Nobs, S. Galen Smith 1949-8-25 1565 San Mateo marshes at Sharp Park; marshes at Sharp Park Comment
  CAS-BOT-BC112610  Isolepis cernua John Hunter Thomas 1973-4-25 16689 San Mateo Stanford University Lands along Sand Hill Road near Whiskey Hill Road. Comment
  CAS-BOT-BC112622  Isolepis cernua W. R. Dudley 1909-10-4 s.n. San Mateo E. twin-pond, North San Mateo County. Comment
  UCD133403  Jaumea carnosa Malcolm A. Nobs; S. Galen Smith 1949-8-26 1598 San Mateo Pescadero Creek. Comment
  CAS-BOT-BC102323  Juglans hindsii Ed Holm; Field Biol. Class, San Mateo High School 1984-7-24 s.n. San Mateo In creekbed of San Mateo Creek next to Polhemus Rd. just before it joins Crystal Springs Rd. and about 100 yds. below Comment
  JROH4522  Juncus John H. Thomas 1973-3-12 16487 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC173842  Juncus balticus Peter Rubtzoff 1977-5-15 9020 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC173699  Juncus bufonius Peter Rubtzoff 1977-6-7 9029 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA796693  Juncus bufonius Peter Rubtzoff 1977-6-21 9066 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4452  Juncus bufonius var. bufonius John Hunter Thomas 1978-5-23 19225 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15771  Juncus bufonius var. bufonius Toni Corelli 2010-6-1 632 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 25 Comment
  JEPS10200  Juncus bufonius var. congestus Rimo Bacigalupi with G. T. Robbins 1954-6-18 4559 San Mateo Point Ano Nuevo Comment
  JROH4456  Juncus bufonius var. occidentalis Arthur Spiegler 1952-5-10 81 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4464  Juncus bufonius var. occidentalis John H. Thomas 1971-4-10 15762 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1601740  Juncus effusus subsp. pacificus J. Burtt Davy 1893-6-22 757 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  UCR244744  Juncus effusus var. brunneus Peter Rubtzoff, Roman Gankin 1975-9-11 8372 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  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
  UCD141619  Juncus nevadensis Frank W. Gould 1939-5-6 657 San Mateo on coast Highway 13 miles north of Santa Cruz County line. 15 Comment
  JROH4478  Juncus occidentalis John H. Thomas 1963-5-12 10078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4490  Juncus occidentalis John Hunter Thomas 1983-5-23 22246 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near shack side & low-flow crossing. Comment
  JROH4493  Juncus occidentalis John Hunter Thomas 1987-5-19 24302 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15929  Juncus occidentalis John Rawlings, Toni Corelli 2016-4-29 1762 San Mateo Cascade Field, north and south of Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  UCD164095  Juncus occidentalis Peter Rubtzoff 1978-5-18 9170 San Mateo San Bruno Mountians.'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Marshy area northwest of Fog Forest. Comment
  UC1601800  Juncus phaeocephalus J. Burtt Davy 1893-6-22 756 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  UC2680  Juncus phaeocephalus J. Burtt Davy 1893-6-17 851 San Mateo w of Salt Marsh; Belmont 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
  UC625335  Juncus phaeocephalus var. paniculatus L. R. Abrams and I. L. Wiggins 1939-6-3 426 San Mateo Ano Nuevo Point Comment
  JROH4520  Juncus xiphioides John Hunter Thomas 1983-5-31 22317 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat dock Comment
  RSA18374  Koeleria macrantha C. B. Wolf 1927-7-1 534 San Mateo Above Emerald Lake, back of Redwood City. Comment
  RSA6412  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  JROH5271  Koeleria macrantha John Hunter Thomas 1983-4-28 21781 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC273733  Koeleria pyramidata Walter Knight; Irja Knight 1964-4-25 s.n. San Mateo San Bruno Mountain. Near Nike base Comment
  CAS-BOT-BC539286  Lachnagrostis filiformis John Rawlings; Ken Hickman 2015-10-30 1647 San Mateo Caltrans right-of-way upslope from Hwy 92 W onramp to Hwy 280 N; downslope from San Francisco Watershed fenceline 118 Comment
  CAS-BOT-BC340470  Lactuca saligna John H. Thomas 1969-10-19 15481 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC341634  Lagophylla ramosissima L. R. Abrams 1920-6-1 7493 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  CAS-BOT-BC341628  Lagophylla ramosissima James I. McMurphy 1905-9-15 s.n. San Mateo Goat Ranch, just south of junction of State Highway 5 (Skyline Blvd.) and Old La Honda Road Comment
  JROH2778  Lamium amplexicaule H. J. Dengler 1975-3-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by road below Searsville Dam Comment
  CAS-BOT-BC339053  Lasthenia californica A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339059  Lasthenia californica H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC339067  Lasthenia californica John Thomas Howell 1926-4-24 1923 San Mateo Daly City Comment
  POM55142  Lasthenia californica C. F. Baker 1903-4-6 1890 San Mateo San Bruno Hills. Comment
  UCSB18865  Lasthenia californica John Schulte 1963-4-26 96 San Mateo collected 3.0 mi SW, along Jasper Ridge, between Santa Clara Valley and Santa Cruz Mountains UC Stanford - Jasper Ridge, UCS 152 Comment
  CAS-BOT-BC339049  Lasthenia californica Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC339097  Lasthenia californica J. H. Thomas 1949-4-1 215 San Mateo Hills west of Redwood City Comment
  RSA8340  Lasthenia californica L. S. Rose 1933-4-30 33128 San Mateo Redwood City Comment
  RSA116648  Lasthenia glaberrima W. R. Dudley 1906-5-22 s.n. San Mateo Coal Mine Ridge. Comment
  SEINET3147835  Lasthenia glabrata subsp. glabrata E. L. Greene 1886-5-11 sn San Mateo Belmont Comment
  UC1598598  Lasthenia glabrata subsp. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
Read comments
Sep 9 2011
  UC194043  Lasthenia glabrata subsp. glabrata E. L. Greene 1886-4-5 San Mateo Belmont Comment
  CAS-BOT-BC355544  Lasthenia glabrata var. glabrata Edward Lee Greene 1883-5-1 s.n. San Mateo Belmont Comment
  CAS-BOT-BC360401  Lasthenia glabrata var. glabrata Ned Cahill 1974-4-18 138 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City Comment
  JROH5938  Lasthenia gracilis John Rawlings 2017-2-27 1960 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Rd F in Serpentine prairie midway between oak island and trail 9 intersection 183 Comment
  JROH973  Lasthenia gracilis John H. Thomas 1966-4-6 11552 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH974  Lasthenia gracilis John H. Thomas 1966-4-22 11569 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU2270  Lasthenia minor C. W. Sharsmith 1947-3-13 6747 San Mateo Pescadero Beach near Pescadero Point Comment
  SFV3758  Lasthenia minor B. J. McCaskill 1954-5-8 295 San Mateo Moss Beach. On bank above beach. Comment
  POM194716  Lathyrus littoralis H. M. Hall 1924-6-17 11957 San Mateo Salada Comment
  UC201111  Lathyrus littoralis Katharine Brandegee 1918-7-4 San Mateo Salida Beach Comment
  UCSB18272  Lathyrus sulphureus Muirhead, M. 1964-4-17 San Mateo Dry slope on Crocker Estate, Hillsborough 76 Comment
  SEINET3557952 Image available Lathyrus vestitus Lewis S. Rose 1932-5-3 32208 San Mateo San Bruno. 183 Comment
  POM19705  Lathyrus vestitus subsp. vestitus C. F. Baker 1903-4-6 1893 San Mateo San Bruno Hills. Comment
  RSA152255  Lathyrus vestitus subsp. vestitus I. L. Wiggins 1925-04 1661 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  CDA9326  Lathyrus vestitus var. vestitus M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 878 San Mateo Pacifica: San Pedro Valley County Park, at Brooks Creek Trail trailhead, near visitor center's parking lot. 74 Comment
  UC15326  Lathyrus vestitus var. vestitus J. Burtt Davy 1895-4-20 1054 San Mateo Lake Pilarcitos Comment
  CDA5011  Lavatera arborea T. C. Fuller 1960-10-5 5199 San Mateo Highway 1 at Pebble Beach State Park, south of Pescadero. 0 Comment
  CAS-BOT-BC323161  Layia chrysanthemoides David D. Keck 1932-4-29 1450 San Mateo Redwood City. Comment
  RSA92255  Layia chrysanthemoides J. T. Howell 1933-5-26 11343 San Mateo Crystal Springs Lake. Comment
  UC935680  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 mi w of Burlingame on Skyline Boulevard Comment
  UC990575  Layia gaillardioides James I. McMurphy 1909-5-25 San Mateo above Pulpit Rock; San Mateo Canyon Comment
  JEPS89799  Layia hieracioides Dean W. Taylor 1989-4-18 10215 San Mateo ridgetop between Ox Hill and Scarper Peak (along fire road, Santa Cruz Mountains); Santa Cruz Mountains 472 Comment
  JROH985  Layia hieracioides John H. Thomas 1974-5-3 17236 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA11169  Layia hieracioides C. B. Wolf 1927-5-31 420 San Mateo North end of Searsville Lake. 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
  UC828937  Layia hieracioides Lewis S. Rose 1933-6-9 33218 San Mateo 3 mi w of San Bruno Comment
  UC89183  Layia hieracioides Alice Eastwood 1899-5-2 San Mateo near Pt. San Pedro Comment
  UC935708  Layia hieracioides David D. Keck 1932-6-1 1796 San Mateo above Searsville Lake La Honda Road; Santa Cruz Mountains Comment
  CAS-BOT-BC327507  Layia hieracioides L. R. Abrams 1907-8-26 s.n. San Mateo King's Mt., Santa Cruz Mountain Peninsula Comment
  UC204134  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Springs Lake Comment
  UC913095  Layia platyglossa David D. Keck 1932-5-6 1491 San Mateo e side Crystal Springs Lake 60 Comment
  CAS-BOT-BC382079  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Srpings Lake Comment
  CAS-BOT-BC382219  Layia platyglossa David D. Keck 1932-5-6 1491 San Mateo East side of Crystal Springs Lake 60 Comment
  CAS-BOT-BC382223  Layia platyglossa Vesta F. Hesse 1952-5-12 938 San Mateo Pigeon Point 15 Comment
  JROH997  Layia platyglossa John H. Thomas 1974-4-13 17153 San Mateo Jasper Ridge Biological Preserve, Stanford University; serpentine, top of ridge Comment
  SEINET10879172  Layia platyglossa John T. Middleton 1937-4-10 Middleton s.n. San Mateo San Mateo Co., Ca. Comment
  JROH5594  Lemna minor John Rawlings 2007-7-5 0910 San Mateo Jasper Ridge Biological Preserve, Stanford University. Pool in Bear Creek. 83 Comment
  JROH2790  Lepechinia calycina John H. Thomas 1971-5-30 15970 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2793  Lepechinia calycina John H. Thomas 1975-5-2 17850 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2796  Lepechinia calycina John Hunter Thomas 1982-7-3 21068 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18304  Lepechinia calycina Carl B. Wolf 1927-5-31 412 San Mateo North end of Searsville Lake. Comment
  RSA409617  Lepechinia calycina E. S. Spalding 1923-8-8 s.n. San Mateo 8 mi. W of Redwood City, near Pielgas Tunnel. Comment
  UCD23295  Lepechinia calycina Alan T. Whittemore 1976-5-29 115 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 Comment
  POM312340  Lepidium didymum Malcolm A. Nobs, S. Galen Smith 1949-8-26 1594 San Mateo Marshes at the mouth of Pescadero Creek. Comment
  CDA19902  Lepidium latifolium D. Pendleton 2002-5-28 PDR P 120141 San Mateo San Francisco Bay Area; Channel alongside Hwy 101, behind parking lot of Mervyn's on Walnut St. 0 Comment
  CDA19903  Lepidium latifolium D. Pendleton 2002-5-28 PDR P 120142 San Mateo San Francisco Bay Area; RR & Cedar St across the tracks from roller rink. 0 Comment
  CDA3808  Lepidium latifolium J. T. Howell 1978-7-18 53189 San Mateo Airport Sheraton, Airport Boulevard., Burlingame 0 Comment
  UCD115701  Lepidium latifolium John Thomas Howell 1978-7-18 53189 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  JROH1539  Lepidium nitidum Daniel Cohen 1953-4-11 11 San Mateo Jasper Ridge Biological Preserve, Stanford University; on north shore of Searsville Lake Comment
  JROH1541  Lepidium nitidum John H. Thomas 1956-4-7 5618 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1549  Lepidium nitidum John Hunter Thomas 1980-4-10 19870 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH1555  Lepidium nitidum John Rawlings 2008-3-14 1032 San Mateo Jasper Ridge Biological Preserve, Stanford University. West Serpentine Chaparral 169 Comment
  RSA6470  Lepidium perfoliatum D. D. Keck 1932-3-24 1400 San Mateo Redwood City, at border of San Francisco Bay. Comment
  CAS-BOT-BC12844  Lepidium pinnatifidum Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon. Comment
  CAS-BOT-BC226604  Leptosiphon ambiguus Ned Cahill 1974-4-1 149 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC226724  Leptosiphon androsaceus Adele Lewis Grant 1917-5-6 936 San Mateo Pescadero Comment
  SD3902  Leptosiphon androsaceus U. S. Grant IV Jun 1925 San Mateo Near La Honda Comment
  JROH5924  Leptosiphon androsaceus Herb Dengler 1970-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  RSA12467  Leptosiphon androsaceus Harry A. Dutton 1900-4-3 5827 San Mateo Woodside serpentine [?] Comment
  UCSC005503  Leptosiphon androsaceus Randall Morgan 1995-6-22 2797 San Mateo Ridge west of Waterman Creek 335 Comment
  SJSU15803  Leptosiphon croceus Toni Corelli 2015-5-3 1193 San Mateo Northern edge of Fitzgerald Marine Reserve, Moss Beach also know as Vallemar Bluff 14 Comment
  CAS-BOT-BC226728  Leptosiphon latisectus A. D. E. Elmer 1903-4-1 4746 San Mateo Cemeteries Comment
  RSA107079  Leptosiphon liniflorus L. S. Rose 1956-5-7 56068 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  UC133724  Leptosiphon rosaceus Dr. E. B. Copeland 1903-6-6 3300 San Mateo Montara Point Comment
  JEPS88045  Lessingia arachnoidea S. Markos 1996-7-28 126 San Mateo 200 yds S of Junction with Golf Course Rd. and Skyline Blvd.; Crystal Springs Reservoir Comment
  LA47382  Lessingia arachnoidea L. S. Rose; 1941-9-6 41434 San Mateo San Mateo Canyon 90.0 Comment
  POM216543  Lessingia arachnoidea D. D. Keck 1931-10-5 1280 San Mateo Crystal Springs lake, E side Comment
  RSA100975  Lessingia arachnoidea George Oberlander 1949-8-20 s.n. San Mateo Near San andreas Lake, San Francisco Watershed Reserve Comment
  JROH1025  Lessingia glandulifera var. glandulifera John Hunter Thomas 1986-6-9 24095 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC324174  Lessingia hololeuca Josephine D. Randall 1907-7-23 s.n. San Mateo near Crystal Springs Lake Comment
  CAS-BOT-BC324180  Lessingia hololeuca Ned Cahill 1974-8-26 372 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC324182  Lessingia hololeuca Lewis S. Rose 1964-9-5 64072 San Mateo Emerald Lake, W of Redwood City 152 Comment
  CHSC98696  Lessingia hololeuca Samantha Mackey Hillaire 2007-7-17 1244 San Mateo Northwest corner of Edgewood Park, approximately 1.5 mile southeast of the southern end of Upper Crystal Springs reservoir. Southeast corner of the intersection of Edgewood Road and Canada Road. Between park fence and Edgewood Road, on sides of well-used park path through rocks. UTM 10 562177E, 414659N. 146 Comment
  JROH1030  Lessingia hololeuca Duncan M. Porter 1960-10-12 724 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
  JROH1032  Lessingia hololeuca John H. Thomas 1972-8-18 16153 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1033  Lessingia hololeuca John H. Thomas 1972-8-18 16153 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC342093  Leucanthemum vulgare Robert S. Cox, Jr. 1946-8-10 s.n. San Mateo Summit of Santa Cruz Mountains (Cahil [Cahill] Ridge) along State Highway 5, near road to Half Moon Bay Comment
  JEPS71207  Leymus X vancouverensis William S. Cooper 1919-7-22 207 San Mateo Ano Nuevo Pt. Comment
  CAS-BOT-BC273562  Leymus californicus Dr. Kellogg No date on label s.n. San Mateo Unspecified 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-BC272187  Leymus triticoides Phillip C. Wheeler 1965-8-14 s.n. San Mateo Brisbane Lagoon, San Bruno Mountain Comment
  POM219276  Leymus triticoides H. F. Copeland 1929-7-4 1241 San Mateo La Honda Grade. Comment
  RSA108327  Leymus triticoides Frank W. Gould 1941-5-10 1292 San Mateo 1 mile north of Pigeon Point lighthouse 15 Comment
  JEPS32129  Lilaea scilloides W. L. Jepson 1923-10-18 10260 San Mateo Colma Comment
  CAS-BOT-BC451673  Lilaea scilloides H. L. Mason 1922-3-28 s.n. San Mateo Pigeon Pt. Comment
  RSA14962  Limnanthes douglasii subsp. douglasii L. S. Rose 1935-5-4 35146 San Mateo Skyline Blvd., W. of San Bruno. Comment
  RSA700355  Limnanthes macounii T. W, Henrich 2004-4-21 s.n. San Mateo Moss Beach. Adjacent to Hwy 1 and immediately east of Half Moon Bay Airport, on Cabrillo Ranch property. Comment
  JROH4053  Limosella acaulis John Hunter Thomas 1980-11-12 20166 San Mateo Jasper Ridge Biological Preserve, Stanford University. Ground of delta Comment
  JEPS113040  Linanthus ambiguus Dean W. Taylor 1994-5-10 14264 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  UCR66506  Linanthus ambiguus L. S. Rose 1948-5-16 48115 San Mateo San Francisco Bay Region, Emerald Lake, hills west of Redwood City 152 Comment
  UC1745718  Linanthus dichotomus Annetta Carter, Helen Sharsmith 1937-5-23 1318 San Mateo E side of Middle Crystal Springs Lake, about 1/2 mi. N of dam. Comment
  SJSU12175  Linaria maroccana V. J. Haley 1985-3-6 San Mateo near El Monte & Moody Rds, Los Altos Hills Comment
  SD39367  Linum californicum McCallum 1933-5-24 3707 San Mateo Fields on Stanford Campus. Comment
  CAS-BOT-BC389735  Lithocarpus densiflorus J. Lovelle 1973-7-29 26 San Mateo Pescadero Cr. Comment
  JEPS85571  Lithocarpus densiflorus Craig Dremann 1986-8-30 320 San Mateo La Honda; along Calif Highway 84 (La Honda-Woodside Rd) at mile marker 8.37 at intersection of Pescadero Rd Comment
  UC1135271  Lithocarpus densiflorus C. M. Belshaw 1935-1-25 1470 San Mateo 2.5 mi nw Sierra Moreno Peak; Santa Cruz Quad. 609 Comment
  CAS-BOT-BC36070  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-12-3 s.n. San Mateo Bear Gulch Road Comment
  POM182580  Lithocarpus densiflorus var. densiflorus D. D. Keck 1931-7-5 1262 San Mateo Skyline Boulevard, due E. of La Honda. 610 Comment
  CAS-BOT-BC430766  Lithophragma affine Evelina Cannon 1895-3-23 s.n. San Mateo South San Francisco Comment
  POM142561  Lithophragma affine subsp. affine C. F. Baker 1902-4-4 443 San Mateo Crystal Springs Lake Comment
  JROH3899  Lithophragma heterophyllum John Hunter Thomas 1986-4-22 23973 San Mateo Jasper Ridge Biological Preserve, Stanford University. Wooded slope above east arm of Searsville Lake Comment
  CAS-BOT-BC342465  Logfia gallica John H. Thomas 1955-4-6 4849 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 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
  JROH741  Logfia gallica John Hunter Thomas 1982-5-5 20920 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH736  Logfia gallica John H. Thomas 1977-4-29 18569 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA128341  Lolium perenne P. H. Raven 1950-6-3 2205 San Mateo along Millbrae Ave, Millbrae. Comment
  UC75212  Lomatium caruifolium var. caruifolium unknown 1902-4-8 2751 San Mateo San Andreas Lake Comment
  OBI8888  Lomatium dasycarpum Lewis S. Rose 1965-4-22 65027 San Mateo San Bruno Mtn, S of parking lot 366 Comment
  SJSU10974  Lomatium dasycarpum G. I. Tourtlotte 1968-3-16 San Mateo by Sawyer Ridge near Crystal Springs Reservoir Comment
  UCD127627  Lomatium dasycarpum Lewis S. Rose 1965-4-22 65027 San Mateo San Bruno Mountain, south of parking lot. 365 Comment
  UC1073368  Lomatium macrocarpum George B. Rossbach 1955-3-12 370 San Mateo s.e. end Buriburi Ridge (n.w. side San Mateo Creek); San Mateo Creek 76 Comment
  POM132877  Lomatium vaginatum A. D. E. Elmer 1903-04 4794 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC240597  Lonicera hispidula A. D. E. Elmer 1903-6-1 4255 San Mateo Crystal Springs Lake Comment
  JROH1660  Lonicera hispidula John Hunter Thomas 1981-5-25 20639 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1666  Lonicera hispidula John Hunter Thomas 1992-7-24 25382 San Mateo Jasper Ridge Biological Preserve, Stanford University; causeway and boat launching ramp Comment
  SFV3590  Lonicera hispidula K. A. Wilson 1961-6-24 1237 San Mateo Santa Cruz Mountains Skyline Blvd. (California Highway 5). 625 Comment
  CAS-BOT-BC240603  Lonicera hispidula Carl B. Wolf 1931-11-5 1805 San Mateo Santa Cruz Mts. 2 mi. w. of La Honda 304 Comment
  POM46727  Lonicera hispidula var. vacillans A. D. E. Elmer 1903-07 4596 San Mateo Lake San Andreas. Comment
  CAS-BOT-BC241541  Lonicera involucrata var. ledebourii A. D. E. Elmer 1903-6-1 4272 San Mateo Lake San Andreas Comment
  CAS-BOT-BC243960  Lonicera involucrata var. ledebourii Alice Eastwood 1914-3-12 3756 San Mateo San Bruno Hills Comment
  CAS-BOT-BC243962  Lonicera involucrata var. ledebourii John H. Thomas 1964-6-19 10429 San Mateo 0.9 miles south of Tunitas Creek near Coast Highway 60 Comment
  CAS-BOT-BC243967  Lonicera involucrata var. ledebourii C. F. Baker 1903-4-1 1918 San Mateo San Andreas Lake Comment
  POM250690  Lonicera involucrata var. ledebourii D. D. Keck 1938-5-30 4726 San Mateo San Gregorio. 30 Comment
  UC306767  Lonicera involucrata var. ledebourii A. D. E. Elmer June, 1903 4272 San Mateo Lake San Andreas Comment
  UCD163731  Lonicera involucrata var. ledebourii Peter Rubtzoff 1980-12-11 9635 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
  SD227810  Lotus corniculatus G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3742 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  HSC2126  Lotus formosissimus J. Wendell Howe 1930-5-27 San Mateo Pigeon Point Rd., 3 mi. S of Pescadero Comment
  UC15648  Lotus micranthus J. Burtt Davy Jun 21 1893-Jun 23 1893 1156 San Mateo Pilarcitos Lake and Canyon Comment
  SEINET12154207  Lotus micranthus Unknown 1932-1 9017 San Mateo Gov. Rolph Estate Comment
  UC1128997  Lotus purshianus var. purshianus G. E. Sindel 1935-8-28 343 San Mateo 2 mi se Crystal Springs Lake; Santa Cruz Quad. 167 Comment
  UC311102  Lotus scoparius A. D. E. Elmer 1903-6-1 4447 San Mateo Belmont Comment
  POM276674  Lotus scoparius var. scoparius Lyman Benson 1928-12-15 832 San Mateo La Honda 213 Comment
  RSA128441  Lotus scoparius var. scoparius Peter H. Raven 1949-6-12 827 San Mateo Belmont Comment
  RSA87745  Lotus stipularis L. R. Abrams 1902-4-20 2460 San Mateo Kings Mountain. Comment
Read comments
May 21 2014
  CAS-BOT-BC157961  Lotus tenuis Peter Rubtzoff 1976-6-13 8631 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway wet of Radio Road junction, margin of marshy area NW of Fog Forest Comment
  RSA11934  Lotus unifoliolatus Elmer I. Applegate 1895-5-11 115 San Mateo Searsville road. Comment
  UC126955  Lupinus affinis J. Burtt Davy 1895-4-20 1087 San Mateo San Mateo Creek Comment
  SEINET10488410  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-BC195817  Lupinus albifrons var. albifrons Josephine D. Randall 1907-7-23 199 San Mateo Near Crystal Springs Lake Comment
  CAS-BOT-BC195820  Lupinus albifrons var. albifrons L. R. A. 1902-4-13 2340 San Mateo San Mateo Canon [Canyon] Comment
  CAS-BOT-BC195794  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-22 48499 San Mateo Highway 5 - junction Woodside 6 mile road, 2.8 miles north Comment
  CAS-BOT-BC195798  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48465 San Mateo Highway 5 - junction Burlingame 4 mile road, 2.7 miles south Comment
  CAS-BOT-BC196123  Lupinus albifrons var. collinus Elizabeth McClintock 1967-4-16 s.n. San Mateo Buckeye Canyon Comment
  JEPS64928  Lupinus albifrons var. collinus Ivar Tidestrom 1894-3-22 San Mateo Comment
  CAS-BOT-BC27394  Lupinus apricus C. P. Smith 1908-3-30 1374 San Mateo Stanford University, Cedro Cottage Field. Comment
  CAS-BOT-BC8524  Lupinus apricus C. P. Smith 1908-4-13 1404 San Mateo Stanford University, field back of Cedro Cottage Comment
  CAS-BOT-BC196431  Lupinus arboreus Charles Piper Smith 1922-4-1 3462 San Mateo Montara Mountain Comment
  CAS-BOT-BC196435  Lupinus arboreus Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo In Colma Canyon Comment
  RSA0065264  Lupinus arboreus Daisie Huang 2006-8-7 06080702 San Mateo South of Half Moon Bay, Hwy 1. 46 Comment
  UC1129348  Lupinus arboreus G. E. Sindel 1935-8-15 333 San Mateo 1/2 mi n Palomares; Sata Cruz Quadrangle Comment
  CAS-BOT-BC196436  Lupinus arboreus J. Ed. McClellan; Bonnie McClellan 1976-6-7 s.n. San Mateo Jeep Fire Trail, Butano State Park Comment
  POM276478  Lupinus arboreus var. arboreus Lyman Benson 1930-6-14 2150 San Mateo San Gregorio. 30 Comment
  RSA6289  Lupinus arboreus var. arboreus D. D. Keck 1932-5-11 1767 San Mateo Two miles north of San Gregorio. 15 Comment
  JROH2115  Lupinus bicolor John H. Thomas 1975-4-19 17794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5695  Lupinus bicolor John Rawlings 2015-3-31 1415 San Mateo Jasper Ridge Biological Preserve, Stanford University. In old quarry off of Trail 12 77 Comment
  UC764739  Lupinus bicolor R. F. Hoover 1939-4-21 4054 San Mateo 2 mi s Colma; s of Colma Comment
  UC865038  Lupinus bicolor L. R. Abrams 1918-5-1 7053 San Mateo San Bruno Hills; Bay shore road Comment
  UC703121  Lupinus formosus Alice Eastwood, John Thomas Howell 1941-7-4 9688 San Mateo Crystal Spring Lakes Comment
  RSA134043  Lupinus formosus var. formosus C. F. Leitholt 1894-5-30 s.n. San Mateo On hillback of Sp. V. W. (probably water works near Belmont). Comment
  SEINET11071961 Image available Lupinus latifolius A. A. Heller 1907-5-23 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UCD108114  Lupinus latifolius A. A. Heller 1907-5-23 8562 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  UC75238  Lupinus latifolius var. latifolius C. F. Baker 470 San Mateo Crystal Springs Lake; ; Crystal Springs Lake, San Mateo Co. Comment
  SD37896  Lupinus latifolius var. latifolius Delzie Demaree 1932-4-9 8979 San Mateo Near entrance to [Gov.?] Ralph Estate Comment
  JROH2128  Lupinus nanus John H. Thomas 1975-4-5 17716 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2134  Lupinus nanus John Hunter Thomas 1980-4-10 19876 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2144  Lupinus nanus Toni Corelli 2010-3-29 363 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Road E at junction of Trail 11 and Trail 9 106 Comment
  UC1303142  Lupinus nanus L. R. Abrams 1926-4-19 San Mateo junction of Los Trancos and San Francisquito Creek; jct of Los Trancos and San Francisquito Creek Comment
Read comments
Sep 26 2011
  UC201937  Lupinus nanus W. A. Setchell 1912-5-26 San Mateo Montara 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
  SEINET10490156  Lupinus nanus subsp. latifolius Charles Piper Smith 1948-4-23 Smith 48137 San Mateo Hwy 1, moss peach p.o. Comment
  SEINET11072117 Image available Lupinus nanus subsp. latifolius Carl Mankinen 1967-4-5 San Mateo State Highway 1, 1.8 miles northwest of Gazos Creek Comment
  SEINET11072303 Image available Lupinus polycarpus Lewis S. Rose 1942-3-30 42006 San Mateo Mills Fields 2 Comment
  RSA3803  Lupinus vallicola subsp. apricus L. R. Abrams 1914-4-20 5128 San Mateo At the confluence of Los Troncos and San Francisquito creeks. Comment
  UC201947  Lupinus variicolor A. D. E. Elmer May, 1903 4709 San Mateo San Pedro Comment
  SEINET10969935  Lupinus variicolor Smith 1947-4-25 Smith 47180 San Mateo Skyline hwy 5, 1.4 mi s of old hwy 1 jct. Comment
  JROH4526  Luzula comosa var. comosa John H. Thomas 1973-3-12 16494 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC441363  Luzula subsessilis Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain: on top of mountain Comment
  UC1057747  Luzula subsessilis F. A. Pitelka 1946-4-13 San Mateo one mi n Montara; n of Montara 30 Comment
  UCSB7479  Lysichiton americanus Horton, Sam 1969-3-28 San Mateo Canyon Road, 1.4 miles east of Cloverdale Road, Butano 152 Comment
  JROH3365  Lysimachia arvensis John H. Thomas 1975-4-18 17787 b San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3398  Lysimachia latifolia John Hunter Thomas 1991-4-25 24997 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2948  Lythrum hyssopifolia John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SFV2436  Lythrum hyssopifolia J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1 about 10 miles north of Santa Cruz County line. Drainage ditch beside road. 30 Comment
  UC1191550  Lythrum hyssopifolia Malcolm A. Nobs, S. Galen Smith 1949-8-26 1578 San Mateo about 1 mi s of Half Moon Bay Comment
  UC138274  Lythrum hyssopifolia Katharine Brandegee 1905-6-1 San Mateo Colma Comment
  UC19773  Lythrum hyssopifolia J. Burtt Davy 1893-6-17 777 San Mateo Belmont Comment
  UCR248337  Lythrum hyssopifolia Peter Rubtzoff 1987-8-26 9837 San Mateo San Bruno Mountain, 'Saddle' area non north side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road 213 Comment
  CAS-BOT-BC342590  Madia Cherie Wetzel 1969-7-8 926 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC343909  Madia elegans Carl B. Wolf 1929-5-17 3713 San Mateo 1 mi. w. of Skyline Blvd. on Alpine Road 304 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-BC343915  Madia elegans J. H. Thomas 1958-9-15 7475 San Mateo 0.4 miles north of dam on San Mateo Creek along Skyline Blvd. 91 Comment
  CAS-BOT-BC343903  Madia elegans David D. Keck 1932-6-18 1979 San Mateo Skyline Blvd., at Langley Hill. (S.W. of Stanford University) 600 Comment
  CAS-BOT-BC343916  Madia elegans Rosenbaum 1916-9-30 s.n. San Mateo Near San Mateo Co. Almshouse Comment
  JROH1043  Madia exigua John H. Thomas 1967-5-31 12925 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC344486  Madia exigua H. A. Dutton 1900-5-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  JROH1042  Madia exigua Herb Dengler 1963-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; S E S L site Comment
  JROH1077  Madia gracilis John Hunter Thomas 1980-5-8 19946 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM298349  Madia gracilis D. D. Keck 1932-6-1 1788 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mountains 305 Comment
  CAS-BOT-BC343340  Madia gracilis James I. McMurphy 1909-5-25 s.n. San Mateo San Mateo Canyon Comment
  POM190265  Madia gracilis D. D. Keck 1932-4-29 1455 San Mateo Mills Field Airport, Bayshore Highway Comment
  POM87787  Madia madioides L. R. Abrams 1902-5-20 2474 San Mateo Kings Mountain Comment
  RSA176604  Madia madioides John H. Thomas 1961-6-20 9555 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  CAS-BOT-BC345109  Madia sativa Louis F. Pitelka 1974-5-28 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC345111  Madia sativa Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC345115  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi. S.W. of Pescadero, within 100 m. of ocean Comment
  CAS-BOT-BC345116  Madia sativa David D. Keck 1932-5-25 1782 San Mateo Hills two miles west of Belmont Comment
  CAS-BOT-BC345125  Madia sativa Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC345126  Madia sativa Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  HSC24008  Madia sativa Mary Katherine Wicksten 1971-6-15 21 San Mateo Huddart Park near horse ring Comment
  UC483494  Madia sativa Ira L. Wiggins 1929-7-4 3796 San Mateo sea bluffs at Pescadero Beach Comment
  CAS-BOT-BC345121  Madia sativa James I. McMurphy 1906-9-24 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC345131  Madia sativa David D. Keck 1941-7-1 1869 San Mateo Base of Montara Mountain, near Montara 91 Comment
  CAS-BOT-BC345135  Madia sativa Ernest C. Twisselmann 1957-8-25 4022 San Mateo Skyline Boulevard, about 5 miles south of Woodside 518 Comment
  POM298334  Madia sativa D. D. Keck 1930-10-15 988 San Mateo SW of Woodside 457 Comment
  CAS-BOT-BC511332  Maianthemum dilatatum John H. Thomas 1961-5-7 9288 San Mateo San Bruno Mountain in northern part of county 396 Comment
  RSA175256  Maianthemum dilatatum Robert F. Thorne, Percy C. Everett 1963-6-9 32216 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain. 335 Comment
  CAS-BOT-BC511479  Maianthemum racemosum subsp. amplexicaule Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  JROH4712  Maianthemum stellatum John Hunter Thomas 1978-7-8 19256 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4713  Maianthemum stellatum John Hunter Thomas 1981-4-5 20260 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC514159  Maianthemum stellatum W. R. Dudley 1894-3-24 s. n. San Mateo La Honda Creek Comment
  CAS-BOT-BC514160  Maianthemum stellatum W. R. Dudley 1900-3-18 s. n. San Mateo Near San Andreas Comment
  CAS-BOT-BC514162  Maianthemum stellatum W. R. Dudley 1893-2-19 s. n. San Mateo Road from La Honda to Alpine Comment
  UC138326  Malacothamnus davidsonii J. W. Congdon 1897-7-27 San Mateo Belmont Comment
  SEINET7248026  Malva arborea D. R. Kaplan 1961-1 s.n. San Mateo 100 ft. East of Moss Beach Comment
  UCD116409  Malva assurgentiflora Robert C. Bechtel 1952-5-1 84 San Mateo Colma. Comment
  CDA34452  Marah oregana M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 872 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  CAS-BOT-BC348194  Matricaria discoidea Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Crocker Hills Comment
  JROH616  Matricaria discoidea John H. Thomas 1967-5-12 12886 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB17213  Matricaria discoidea Schulte, John 1963-4-28 San Mateo On top of Jasper Ridge, 3 miles southwest of Stanford campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC60298  Matthiola incana Elizabeth McClintock; Paul Reeberg 1988-3-15 s.n. San Mateo San Bruno Mountains. Entrance to Olivet Ravine. Comment
  POM149359  Meconella californica A. D. E. Elmer 1903-04 4499 San Mateo San Mateo, toward Crystal Springs Comment
  UCD87172  Melica californica Ogden C. Riddle 1941-4-6 74 San Mateo Near Half Moon Bay, Finney Ridge. 243 Comment
  JEPS48479  Melica imperfecta James G. Daly 1934-1 310 San Mateo upper Alpine Creek road (San Gregorio Creek watershed); San Gregorio Creek Comment
  JROH5305  Melica imperfecta John Hunter Thomas 1979-5-18 19556 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near green shack. Comment
  RSA135801  Melica imperfecta W. R. Dudley 1899-05 s.n. San Mateo Road from San Andreas Res. to Pilarcitos. Santa Cruz Mountain Peninsula. Comment
  JROH5311  Melica subulata John Rawlings 2005-5-15 1005 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Trail 2 from 100 to 250 yards west of the zoology cabin site 82 Comment
  CAS-BOT-BC264239  Melica torreyana Ira L. Wiggins 1928-4-14 2904 San Mateo Alpine Creek Road Comment
  UCD88810  Melica torreyana Rimo Bacigalupi; Jim Roof and L. Heckard 1961-4-24 7625 San Mateo East of KRON television tower and station; on Guadalupe Valley side of the summit of San Bruno Mountain. 304 Comment
  UCD88813  Melica torreyana A. A. Beetle 1942-6-11 3600 San Mateo Rt. 5, 15 miles south of San Bruno. Comment
  JROH2179  Melilotus albus John H. Thomas 1976-10-16 18401 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH2187  Melilotus indicus John H. Thomas 1973-6-15 16838 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC311106  Melilotus indicus A. D. E. Elmer June, 1903 4278 San Mateo Crystal Springs Lake Comment
  RSA217959  Mentha Phillip C. Wheeler 1965-7-7 s.n. San Mateo San Bruno Mountains; Crocker Avenue Comment
  JEPS63293  Mentha pulegium James G. Daly Ca. 1934 579 San Mateo about 1 mi n of road to La Honda on main ridge Santa Cruz Mts.; main ridge of Santa Cruz Mts. Comment
  RSA132455  Mentha pulegium John H. Thomas 1959-8-22 8079 San Mateo Jasper Ridge, about 5 miles SW of Palo Alto 152 Comment
  JROH2807  Mentha pulegium John H. Thomas 1964-11-29 10533 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville Dam Comment
  JROH2818  Mentha pulegium John Hunter Thomas 1981-7-12 20702 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  JROH2825  Mentha pulegium John Hunter Thomas 1991-11-21 25106 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  SJSU43  Mentha pulegium C. D. Duncan 1925-10-11 San Mateo Mud Lakes, summit of Coal Mine Ridge (above Corte Madera Cr) Santa Cruz Mts. 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
  UCD96998  Mesembryanthemum nodiflorum Malcolm A. Nobs; S. Galen Smith 1949-8-27 1623 San Mateo E of Redwood City. Comment
  CAS-BOT-BC348571  Micropus californicus var. californicus John H. Thomas 1974-4-11 17138 B San Mateo Area to the SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  CAS-BOT-BC348576  Micropus californicus var. californicus Philip C. Wheeler 1965-5-11 s.n. San Mateo San Bruno Mountain. Southwest Canyon below NBC Tower Comment
  JROH1122  Micropus californicus var. californicus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1123  Micropus californicus var. californicus John H. Thomas 1967-5-10 12862 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1135  Micropus californicus var. californicus John Hunter Thomas 1989-5-9 24719 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5948  Micropus californicus var. californicus John Rawlings 2016-4-20 1726 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 at lower Trail 9 118 Comment
  CAS-BOT-BC348575  Micropus californicus var. californicus James McMurphy 1908-4-1 s.n. San Mateo Crystal Springs Comment
  RSA130390  Micropus californicus var. subvestitus W. R. Dudley 1906-5-13 s.n. San Mateo Open hills southwest of San Mateo Comment
  CAS-BOT-BC349015  Microseris douglasii subsp. douglasii A. D. E. Elmer 1903-5-1 4721 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC349021  Microseris douglasii subsp. douglasii LeRoy Abrams 1902-5-4 2418 San Mateo Woodside Comment
  CAS-BOT-BC349025  Microseris douglasii subsp. douglasii A. D. E. Elmer 1903-5-1 4721 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC349026  Microseris douglasii subsp. douglasii Ned Cahill 1974-5-13 273 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1145  Microseris douglasii subsp. douglasii John Hunter Thomas 1980-5-8 19958 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1151  Microseris douglasii subsp. douglasii John Hunter Thomas 1992-5-5 25211 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC349016  Microseris douglasii subsp. douglasii George Oberlander 1950-4-23 880 San Mateo San Francisco Watershed Reserve. Near Lower Crystal Spr. Lake Comment
  CAS-BOT-BC349144  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 756 San Mateo Woodside Comment
  CAS-BOT-BC349148  Microseris douglasii subsp. tenella LeRoy Abrams 1902-5-4 2423 San Mateo Woodside Comment
  RSA184976  Microseris douglasii subsp. tenella L. S. Rose 1966-5-2 66037 -B San Mateo Emerald Lake, west of Redwood City. 91 Comment
  SEINET8208860  Mimulus aurantiacus J. I. McMurphy 1906-5-20 25 San Mateo Kings Mt. Santa Cruz Mts. Comment
  POM222786  Mimulus aurantiacus var. aurantiacus S. S. Berry 1909-4-23 s.n. San Mateo Road near Los Francos Creek 61 Comment
  RSA10375  Mimulus aurantiacus var. aurantiacus H. A. Barker 1926-5-1 607 San Mateo Kings Mt. Comment
  RSA420293  Mimulus aurantiacus var. aurantiacus Paul C. Silva 1948-1-31 2628 San Mateo Old La Honda Grade, 1 mile south of Skyline Blvd. 457 Comment
  JROH4078  Mimulus cardinalis John H. Thomas 1961-6-14 9544 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC306607  Mimulus guttatus A. D. E. Elmer April, 1903 4857 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC174576  Minuartia californica A. A. Heller 1907-4-20 8447 San Mateo Near Lake Merced Comment
  CAS-BOT-BC388827  Minuartia douglasii A. D. E. Elmer 1903-4-1 5042 San Mateo San Bruno Hills Comment
  JROH1702  Minuartia douglasii John H. Thomas 1975-5-26 17901 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1703  Minuartia douglasii John Hunter Thomas 1981-4-29 20512 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC388830  Minuartia douglasii W. R. Dudley 1897-6-5 s.n. San Mateo Santa Cruz Mountain Peninsula. Flat Rock, Waddell Creek Comment
  CAS-BOT-BC388832  Minuartia douglasii Ned Cahill 1974-5-9 169 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC214068  Monardella villosa Elsie Zeile 1909-5-20 s.n. San Mateo Burlingame Comment
  CAS-BOT-BC220664  Monardella villosa Y. Henderson 1920-5-31 s.n. San Mateo Searsville Comment
  JEPS127892  Monardella villosa subsp. villosa Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 306 San Mateo Crystal Springs Reservoir Comment
  JROH2840  Monardella villosa subsp. villosa John H. Thomas 1973-6-10 16822 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2842  Monardella villosa subsp. villosa John H. Thomas 1976-5-26 18159 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2843  Monardella villosa subsp. villosa John Hunter Thomas 1980-6-5 19995 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
  JROH2832  Monardella villosa subsp. villosa L. R. Abrams 1914-6-2 5112 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville ridge Comment
  JROH2833  Monardella villosa subsp. villosa John H. Thomas 1961-6-7 9529 San Mateo Jasper Ridge Biological Preserve, Stanford University; just above Searsville Lake Comment
  CAS-BOT-BC327789  Monolopia gracilens Otto Holm 1930-5-9 s.n. San Mateo Berenda Farm, near Redwood City Comment
  CAS-BOT-BC327791  Monolopia gracilens Donald A. Johansen 1932-5-21 683 San Mateo East of La Honda, Santa Cruz Mountains. Comment
  UC50082  Monolopia gracilens J. Burtt Davy Jun 21 1893-Jun 23 1893 1124 San Mateo Pilarcitos Lake and Canyon Comment
  UC729683  Montia fontana Carl B. Wolf 1929-4-29 3661 San Mateo 1 mi n of summit of La Honda (on Skyline Boulevard); Santa Cruz Mountains Comment
  CAS-BOT-BC444949  Montia fontana K. Hoppaugh 1929-4-29 373 San Mateo 10 mi. so. of San Francisco, Skyline Boulevard Comment
  CAS-BOT-BC444953  Montia fontana W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Peninsula. North of house just below King's Mt. house. Comment
  CAS-BOT-BC445193  Montia parvifolia A. D. E. Elmer 1903-5-1 4577 San Mateo Iverson's Place Comment
  UC1057459  Muilla maritima G. Thomas Robbins 1937-4-11 100 San Mateo near Spring Valley Lakes, along road to Woodside Comment
  CDA34567  Myosotis latifolia M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 876 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  RSA152078  Myosotis latifolia John H. Thomas 1962-5-12 9332 San Mateo San Bruno Mountain. 244 Comment
  CAS-BOT-BC166664  Myosotis latifolia Peter Rubtzoff; Elizabeth McClintock; Barbara Deutsch 1978-6-4 9203 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC101771  Myrica californica John H. Thomas 1976-10-7 18394 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south 30 Comment
  CAS-BOT-BC101775  Myrica californica Carl B. Wolf 1929-5-10 3709 San Mateo near Lake Lucerne 1 mi. no. of Pigeon Pt. 30 Comment
  RSA15308  Myrica californica Carl B. Wolf 1927-4-3 278 San Mateo 1 mi. west of Summit of La Honda grade, Santa Cruz Mts. Comment
  UC1135945  Myrica californica N. K. Carlson 1935-7-5 29 San Mateo 3 mi. s. Bellvale; Santa Cruz Quad. Comment
  SEINET12029232  Myrica californica W. Knight, Knight, I. 1982-1 4461 San Mateo From Tilden Botanic Garden,Berkeley. Orig. collected along Guadalupe Pkyway. E summit,San Bruno Mt Comment
  JROH2695  Myriophyllum aquaticum John Hunter Thomas 1983-5-31 22318 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH5836  Narcissus pseudonarcissus Ann Lambrecht 2007-3-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Planted in Old Garden near Douglas Iris site off Trail 20 toward San Francisquito Creek Comment
  JROH1568  Nasturtium officinale John H. Thomas 1955-5-6 4998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1574  Nasturtium officinale John Hunter Thomas 1987-4-7 24177 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Dam Comment
  CAS-BOT-BC60475  Nasturtium officinale Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountains. Crocker Avenue. Comment
  POM65519  Navarretia heterodoxa A. D. E. Elmer 1903-06 4282 San Mateo Crystal Springs Lake. Comment
  JROH3197  Navarretia heterodoxa W. R. Dudley 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Point of Rocks near Searsville Lake Comment
  JROH3212  Navarretia squarrosa John Hunter Thomas 1977-6-16 18778 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UCR121584  Navarretia squarrosa George K. Helmkamp, E. A. Helmkamp 1999-6-28 4985 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  POM282334  Navarretia squarrosa Lyman Benson 1932-7-11 3929 San Mateo Stanford University, Santa Cruz Mountain range, San Francisquito Creek watershed 152 Comment
  JROH2753  Nemophila John Hunter Thomas 1991-4-25 24994 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rattlesnake Rocks Comment
  JROH2756  Nemophila John Hunter Thomas 1992-4-23 25150 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  UCSC007750  Nemophila humifusa Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  RSA101011  Nemophila menziesii var. atomaria G. Oberlander 1950-4-2 569 San Mateo Near San Andreas Lake, San Francisco Watershed Reserve Comment
  CAS-BOT-BC219490  Nemophila parviflora John Thomas Howell 1940-5-23 15517 San Mateo Stone Dam near Lake Pilarcitos Comment
  JROH4168  Nicotiana acuminata var. multiflora Monica Bjorkman 1988-10-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry stream bed of SF Creek upstream from the Low Flow Crossing. Comment
  CAS-BOT-BC140433  Oemleria cerasiformis Elizabeth McClintock 1965-3-14 s.n. San Mateo Cable Ravine, San Bruno Mt. Comment
  CAS-BOT-BC140439  Oemleria cerasiformis George Oberlander 1949-4-2 37 San Mateo Pilarcitos Canyon Comment
  JROH3704  Oemleria cerasiformis John H. Thomas 1958-2-15 6983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA77093  Oemleria cerasiformis D. D. Keck 1932-3-6 1396 San Mateo Near La Honda, Santa Cruz Mountains. Comment
  SD27759  Oemleria cerasiformis Carl B. Wolf 1927-2-26 222 San Mateo La Honda Grade 305 Comment
  CHSC1969  Oenanthe sarmentosa A. Goekler 1929-5-10 San Mateo Moss Beach. Comment
  JROH287  Oenanthe sarmentosa John Hunter Thomas 1979-6-12 19589 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  POM259822  Oenothera elata subsp. hookeri L. R. Abrams, Ira L. Wiggins 1939-6-3 438 San Mateo 2 miles north of Pigeon Point Lighthouse Comment
  UCD106882  Oenothera perennis T. C. Fuller 1970-5-12 19529 San Mateo Emily (Mrs. Hillary) Brown prop., 3045 Ralston Ave., Burlingame. Comment
  JROH3087  Orobanche John Hunter Thomas 1991-12-28 25118 San Mateo Jasper Ridge Biological Preserve, Stanford University; Rattlesnake Rocks along path to redwoods Comment
  UC1197449  Orobanche californica subsp. californica Dr. L. M. Newlon 1919-9-7 68 San Mateo Pillar Point, northern end of Half Moon Bay. Comment
  CAS-BOT-BC499689  Orobanche californica subsp. californica L. R. Abrams 1909-8-2 4275 San Mateo Santa Cruz Peninsula; Pebble Beach hotel, Pescadero Comment
  CAS-BOT-BC500318  Orobanche uniflora subsp. occidentalis W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula: Rocks above San Mateo Creek Comment
  POM286520  Orthocarpus densiflorus Arthur L. Cohen 1935-4-21 628 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  SEINET12270178  Orthocarpus densiflorus Unknown 1932-1 8982 San Mateo on way to Gov. Rolph Estate Comment
  POM15373  Orthocarpus erianthus var. roseus A. D. E. Elmer 1903-05 4670 San Mateo South San Francisco. Comment
  RSA155567  Orthocarpus erianthus var. roseus L. S. Rose 1961-4-5 61034 San Mateo San Bruno Mountains. 366 Comment
  RSA152408  Orthocarpus faucibarbatus var. albidus R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4562 San Mateo Immediately behind Point Ano Nuevo. Comment
  RSA14200  Orthocarpus faucibarbatus var. albidus Carl B. Wolf 1927-1-29 181 San Mateo Near the coast at Pescadero. Comment
  SEINET10829382  Orthocarpus floribundus Robert F. Hoover 1939-4-21 Hoover 4057 San Mateo 2 miles south of Colma. Comment
  RSA402039A  Orthocarpus lithospermoides Francis W. Pennell, D. D. Keck 1940-5-15 25413 San Mateo Emerald Lake, above Redwood City. 46 Comment
  RSA407968  Orthocarpus purpurascens Francis W. Pennell, D. D. Keck 1940-5-15 25418 San Mateo E of Upper Crystal Springs Lake, SW of San Mateo. 61 Comment
  RSA6290  Orthocarpus pusillus D. D. Keck 1932-5-11 1766 San Mateo 2 miles north of San Gregornio. Comment
  SEINET12324059  Orthocarpus pusillus E. McClintock, Knight, W.; Knight, I. 1982-1 4648 San Mateo San Bruno Mountain Comment
  UCR133535  Osmaronia cerasiformis Lyman Benson 1929-3-5 978 San Mateo road from Searsville Lake to Kings Mountain 610 Comment
  JROH295  Osmorhiza berteroi John Hunter Thomas 1985-5-2 23580 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM133304  Osmorhiza purpurea A. D. E. Elmer 1900-05 1982 San Mateo La Honda Comment
  POM139481  Oxalis oregana C. F. Baker 1902-3-18 325 San Mateo King's Mountain Comment
  POM278934  Oxalis oregana Lyman Benson 1930-5-3 2108 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  RSA130337  Oxalis oregana Helen M. Edwards 1917-3-8 s.n. San Mateo Woodside. Comment
  HSC16710  Oxalis oregana P. A. Murphy 1965-4-16 35 San Mateo 6 mi. from Half Moon Bay in Hatches Woods Comment
  SEINET6645806  Oxalis oregana R. L. Oliver 1976-4-18 s.n. San Mateo La Honda along highway 84 Comment
  JEPS71261  Parapholis incurva A. L. Hormay 1932-5-29 San Mateo San Bruno; San Francisco Bay Shore Comment
  RSA152077  Parapholis incurva John H. Thomas 1962-5-12 9859 San Mateo Franklin Point. 0 Comment
  UCR113570  Parietaria judaica Mitch Provance 1999-1-18 1745 San Mateo Daly City, west side of Mission St, c. 0.25 miles south of the San Mateo/ San Francisco County line 122 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
  UCD88918  Paspalum distichum David Hanson 1975-11-24 s.n. San Mateo Half Moon Bay. Comment
  JROH4096  Pedicularis densiflora James Newman 1951-4-21 44 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake, above lake 91 Comment
  JROH4104  Pedicularis densiflora John H. Thomas 1959-4-5 7663 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA22074  Pedicularis densiflora L. S. Rose 1939-4-12 39061 San Mateo Crystal Springs Lake. 152 Comment
  UCR136713  Pedicularis densiflora L. S. Rose 1948-3-31 48031 San Mateo San Francisco Bay Region, Millbrae Highlands 91 Comment
  CAS-BOT-BC266667  Pedicularis dudleyi Rimo Bacigalupi 1923-1-1 s.n. San Mateo Peters Creek near Pescadero Creek Comment
  JEPS82090 Image available Pedicularis dudleyi Rimo Bacigalupi with J. H. Thomas and L. Heckard 1961-5-23 7712 San Mateo 1/3 mi n of its confulence with Pescadero Creek (e side of Peters Creek); Peters Creek 134 Comment
  LA209494  Pedicularis dudleyi E. B. Copeland; 1982-4-9 707 San Mateo big basin of Pescadero creek Comment
Read comments
Jun 12 2020
  CAS-BOT-BC207026  Pelargonium vitifolium Rimo Bacigalupi 1922-3-29 s.n. San Mateo Roadside between Pigeon Pt. and Arroyo de los Frijoles Comment
  CAS-BOT-BC207031  Pelargonium vitifolium John Thomas Howell 1932-12-21 10864 San Mateo Near Pescadero. Comment
  CAS-BOT-BC69252  Pellaea andromedifolia Margaret Barry 1937-5-1 39 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC69251  Pellaea andromedifolia John H. Thomas 1975-4-17 s.n. San Mateo Yerba Buena Nursery, near Skyline Blvd, on Isenberg Ranch Comment
  SEINET4555767 Image available Pellaea andromedifolia John P. Young 1925-1-9 San Mateo Burlingame Comment
  CAS-BOT-BC327978  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto. 182 Comment
  CAS-BOT-BC330496  Pentachaeta bellidiflora Ned Cahill 1974-4-29 205 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  JROH107  Pentagramma triangularis subsp. triangularis John H. Thomas 1956-4-7 5620 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC77004  Pentagramma triangularis subsp. triangularis Phillip Wheeler 1966-12-30 s.n. San Mateo San Bruno Mountains - Harold Road, Brisbane Comment
  UC652563  Perideridia gairdneri subsp. gairdneri Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9295 San Mateo Ano Nuevo Point Comment
  JROH308  Perideridia kelloggii John H. Thomas 1970-7-5 15661 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH315  Perideridia kelloggii John Hunter Thomas 1991-8-4 25077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC419390  Persicaria punctata Ira L. Wiggins 1974-10-27 22132 San Mateo Bed of San Francisquito Creek, along line between Palo Alto and Mrnlo [Menlo] Park and between San Mateo and Santa Clara Counties, near Pope Street bridge Comment
  CAS-BOT-BC419392  Persicaria punctata Paul Reeberg 1991-8-10 s.n. San Mateo San Bruno Mountains Comment
  CAS-BOT-BC330252  Petasites frigidus var. palmatus A. W. Herre; Ira L. Wiggins 1939-3-25 19 A San Mateo Headwaters of Pescadero Creek, about 8 miles N of Big Basin Redwood Park Comment
  RSA116726  Petasites palmatus L. R. Abrams 1904-3-7 s.n. San Mateo Bear Gulch. Santa Cruz Mountain Peninsula. Comment
  RSA15277  Petasites palmatus C. B. Wolf 1927-4-3 243 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  SBBG51579  Phacelia californica J. Doty 1969-3-26 596 San Mateo 100 yds E of the jct of St hwys 35 and 92 Comment
  UC131689  Phacelia californica C. F. Baker 1902-5-1 690 San Mateo Crystal Springs Comment
  SEINET3121782 Image available Phacelia californica John Thomas Howell 1929-8-11 4373 San Mateo King Mountain Comment
  UC131512  Phacelia distans C. F. Baker 1902-4-4 442 San Mateo Crystal Springs Lake Comment
  JEPS2344  Phacelia divaricata W. L. Jepson 1914-3-22 5733 San Mateo Redwood City Comment
  RSA0106646  Phacelia divaricata Lyman Benson 1931-3-15 2639 San Mateo Emerald Lake, Redwood City, Santa Cruz Mtns, San Francisco Bay watershed. 152 Comment
  SDSU6612  Phacelia imbricata D. F. Howe 1967-4-14 4352 San Mateo 7 miles from San Mateo on raod to Half Moon Bay. 122 Comment
  CDA40397  Phacelia nemoralis E. L. Labadie Jr. 1961-6-6 s.n. San Mateo Burlingame. 0 Comment
  JROH2764  Phacelia rattanii John H. Thomas 1961-6-7 9530 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC258933  Phalaris aquatica J. H. Thomas 1958-8-1 7375 San Mateo Just north of mouth of San Gregorio Creek 30 Comment
  JROH5354  Phalaris aquatica John H. Thomas 1974-6-27 17446 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just outside of the Goya gate. Comment
  JROH5360  Phalaris aquatica John Hunter Thomas 1981-9-24 20745 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5363  Phalaris aquatica John Hunter Thomas 1982-7-2 21058 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. 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
  RSA22129  Phalaris minor J. T. Howell 1937-7-5 13099 San Mateo Redwood City, along Bayshore Highway Comment
  CDA2317  Phalaris paradoxa T. C. Fuller 1967-6-13 15948 San Mateo Road to San Mateo, 0.7 mile east of Skyline Blvd., east above Crystal Springs Lake. 0 Comment
  CAS-BOT-BC222502  Pholistoma auritum var. auritum Miss E. Cannon No date on label s.n. San Mateo South San Francisco Comment
  JROH4286  Phoradendron serotinum subsp. tomentosum John H. Thomas 1955-5-6 5018 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH4255  Phyla nodiflora Carol Zabel, Ann Lambrecht, Toni Corelli 2001-5-21 42 San Mateo Jasper Ridge Biological Preserve, Stanford University; bank of Searsville Lake, just below Searsville Lab 105 Comment
  UC1974569  Phyllospadix torreyi Megan Williams 2002-11-21 San Mateo Pigeon Point Comment
  UCD138387  Phyllospadix torreyi R. V. Parker 1953-4-15 s.n. San Mateo Moss Beach. Comment
  SD37695  Physocarpus capitatus Edith A. Purer 1933-5-9 3604 San Mateo Stevens Creek Comment
  SEINET11130514 Image available Pickeringia montana M. E. Springer 1946-9-1 739 San Mateo Road near Skyline Blvd. Comment
  CAS-BOT-BC206937  Pickeringia montana var. montana Daniel Cohen 1953-5-9 86 San Mateo La Honda Road nera Skyline Drive Comment
  JROH2201  Pickeringia montana var. montana John H. Thomas 1974-5-29 17402 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Riders' shack Comment
  RSA19297  Pickeringia montana var. montana L. S. Rose 1937-5-23 37321 San Mateo Belmont 91 Comment
  UCR253351  Picris echioides A. C. Sanders 2014-8-3 41232 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  SEINET10530821  Pinus radiata Mary Susan Taylor 1978-8-30 Taylor 1866 San Mateo Comment
  JROH4769  Piperia John Hunter Thomas 1991-4-4 25081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC136531  Piperia candida A. D. E. Elmer 1903-8-1 5058 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  POM291177  Piperia elongata Lyman Benson 1932-7-25 3951 San Mateo Kings Mt. above Woodside, Santa Cruz Mt. range, San Francisquito Creek watershed 305 Comment
  JROH1407  Plagiobothrys bracteatus Herbert Dengler 1966-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS27368  Plagiobothrys chorisianus Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7628 San Mateo just e KRON television tower and station (below and se of end of paved ridge-top road, on Guadalupe Valley side of the summit of San Bruno Mountain); San Bruno Mountain 304 Comment
Read comments
Aug 22 2013
  SD99464  Plagiobothrys chorisianus John H. Thomas 1961-5-7 9258 San Mateo San Bruno Mountain. Comment
  CAS-BOT-BC228153  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1898-4-24 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near El Corte Madera Creek Comment
  CAS-BOT-BC228162  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1894-4-21 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near Crystal Springs Reservoir Comment
  CAS-BOT-BC228160  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1900-3-18 s.n. San Mateo The Santa Cruz Mountain Peninsula. Top of first summit E of Salada Valley Comment
  JROH1418  Plagiobothrys chorisianus var. hickmanii John Hunter Thomas 1982-5-18 20940 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
  JROH1425  Plagiobothrys nothofulvus John H. Thomas 1970-4-4 15542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1433  Plagiobothrys nothofulvus John Hunter Thomas 1991-4-11 24979 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CDA6602  Plantago coronopus D. G. Kelch 2002-5-13 s.n. San Mateo Highway 92 at Quarry gate. 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
  CHSC59771  Plantago erecta Jan M. Karaz 1979-5-22 29 San Mateo 500 ft west of Canada College Campus Drive, 1.8 mi west of Hwy 280. 5 Comment
  JROH3110  Plantago erecta John H. Thomas 1961-4-29 9177 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3112  Plantago erecta John H. Thomas 1974-4-13 17151 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  JROH3113  Plantago erecta John H. Thomas 1975-4-19 17796 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC203055  Plantago erecta A. D. E. Elmer Apr 1903 4795 San Mateo San Bruno Hills Comment
  SEINET12342186  Plantago erecta Unknown 1932-1 9135 San Mateo Sky Line Drive Comment
  RSA402012B  Plantago hirtella E. S. Spalding 1924-6-28 s.n. San Mateo Moss Beach. Comment
  UCSB18574  Plantago lanceolata Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 76 Comment
  CAS-BOT-BC157692  Plantago major Peter Rubtzoff; Roman Gankin 1975-9-11 8371 San Mateo San Bruno Mountain. Pond NW of and across old Guadalupe Road from Saddle area (which is located on N side of Guadalupe Canyon Parkway, W of Radio Road junction Comment
  CDA34345  Plantago major E. Finley 1990-10-16 s.n. San Mateo Shoreline Blvd, Mountain View. 0 Comment
  POM61259  Plantago maritima E. B. Copeland 1903-6-5 3331 San Mateo Montara Point. Comment
  JEPS15530  Plantago maritima var. californica G. Thomas Robbins 1956-8-18 3736 San Mateo near mouth of Pomponio Creek Comment
  CAS-BOT-BC389703  Platystemon californicus L. Sigal 1969-5-1 s.n. San Mateo Skyline Boulevard - Burlingame Comment
  SD1839  Platystemon californicus U. S. Grant 1925-6-5 San Mateo Burlingame Comment
  SEINET12102792  Platystemon californicus L. S. Rose 1938-1 37230 San Mateo Emerald Lake, W of Redwood City 107 Comment
  JROH4241  Plectritis congesta subsp. brachystemon H. J. Dengler 1972-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By trail N.E.J.R. to S.F. Creek, at point where deer trail joins trail to creek, ca. 20' below junco nesting site. Comment
  UC416761  Plectritis macrocera J. Burtt Davy 1893-6-17 783 San Mateo Belmont Comment
  POM284728  Plectritis macrocera subsp. macrocera Arthur L. Cohen 1935-4-21 635 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  JROH5394  Pleuropogon californicus var. californicus Ann Lambrecht 2006-5-1 34 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vernally wet area between Sand Hill Road and main entry road to preserve. 121 Comment
  RSA135747  Pleuropogon californicus var. californicus James I. McMurphy 1906-5-8 s.n. San Mateo Road near head of Crystal Springs Lakes, by road from Woodside to Byrnes Store. Comment
  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
  JROH5410  Poa howellii John Rawlings 2012-5-1 1115 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Trail 9 162 Comment
  JROH5412  Poa howellii John Rawlings 2013-4-16 1137 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension south of the Dengler Transect after a short uphill section where the trail passes below a boulder. 84 Comment
  JROH5413  Poa howellii John Rawlings 2013-4-16 1137 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension south of the Dengler Transect after a short uphill section where the trail passes below a boulder. 84 Comment
  RSA135745  Poa kelloggii Roxana S. Ferris 1920-4-26 1963 San Mateo Near mouth of Canon of Pescadero Creek 244 Comment
  CAS-BOT-BC173840  Poa pratensis Peter Rubtzoff 1976-5-22 8544 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH5424  Poa secunda subsp. secunda Herbert Dengler 1962-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N of Searsville Rocks 100 ft from S. F. Cr. Comment
  UC1190034  Poa unilateralis H. L. Mason 1921-5-28 San Mateo Pebble Beach near Pescadero Comment
  SJSU15435  Poa unilateralis subsp. unilateralis Toni Corelli 2010-5-14 673 San Mateo Southern end of Pillar Point Bluff, San Mateo County. 32 Comment
  CAS-BOT-BC414109  Polygonum aviculare subsp. aviculare George Oberlander 1949-7-24 316 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  JROH3261  Polygonum aviculare subsp. depressum John Hunter Thomas 1977-6-16 18795 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC414235  Polygonum aviculare subsp. depressum J. H. Thomas 1963-7-19 10180 B San Mateo Ano Nuevo Point Comment
  UC1101152  Polygonum lapathifolium Malcolm A. Nobs and S. Galen Smith 1949-8-26 1577 San Mateo pond in sand dunes about 1 mi s Half Moon Bay Comment
  CAS-BOT-BC109243  Polygonum paronychia Robert Robertson 1954-5-1 120 San Mateo Pebble Beach. 4 Comment
  POM216540  Polygonum paronychia D. D. Keck 1931-10-5 1288 San Mateo 1 mile N of Salada Beach, 200 meters from ocean. Comment
  SJSU2298  Polygonum paronychia C. W. Sharsmith 1950-4-16 6627 San Mateo near Pescadero Point, near Pescadero Comment
  UCR66558  Polygonum paronychia David D. Keck 1931-10-5 1288 San Mateo 1 mi north of Salada Beach 200 Comment
  UCD100554  Polygonum patulum John Thomas Howell 1953-6-3 29057 San Mateo Bayshore Highway, Redwood City. Comment
  JROH79  Polypodium californicum John H. Thomas 1972-4-1 16045 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC474210  Polypodium californicum H. F. Copeland 1928-2-26 985 San Mateo on cliffs above ocean Montara Comment
  CAS-BOT-BC76807  Polypodium glycyrrhiza Rachael A. Tickner 1974-1-1 s.n. San Mateo Butano Sandstone Bluffs, Butano State Park, southern part of county. Comment
  CAS-BOT-BC76803  Polypodium glycyrrhiza W. R. Dudley 1893-2-19 s.n. San Mateo Santa Cruz Peninsula - near La Honda Comment
  UC440196  Polypodium scouleri R. L. Pendleton 1907-4-20 623 San Mateo Colma 152 Comment
  SJSU10491  Polypodium scouleri S. H. Casey 1969-5-18 248 San Mateo Fern Rock, San Bruno Mt. Comment
  CAS-BOT-BC233155  Polypogon interruptus C. F. Leitholt 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devil's [Canon] Canyon Comment
  CAS-BOT-BC233156  Polypogon interruptus A. D. E. Elmer 1903-7-1 4694 San Mateo Pilarcitos Stone Dam Comment
  UC767859  Polypogon interruptus R. F. Hoover 1940-9-1 4550 San Mateo La Honda summit Comment
  JROH5448  Polypogon monspeliensis John Hunter Thomas 1977-6-16 18785 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry lake bed Comment
  UC1100390  Polypogon monspeliensis Herbert L. Mason and Verne Grant 1946-8-28 13094 San Mateo pond on Highway 5 about 3 mi s Daly City Road Comment
  JROH44  Polystichum dudleyi Herbert Dengler 1961-6-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek about 100' below tiger lily site Comment
  CAS-BOT-BC76608  Polystichum munitum J. H. Thomas 1949-3-29 198 San Mateo King's Mountain Comment
  CAS-BOT-BC76646  Polystichum munitum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain - North Power Line Ridge area. Comment
  CAS-BOT-BC76649  Polystichum munitum Roxana S. Ferris 1921-3-20 2108 San Mateo Pescadero Creek in canyon, 6 mi. from Pescadero Comment
  CAS-BOT-BC105563  Populus trichocarpa Eric Walther 1919-2-23 s.n. San Mateo Woodside Comment
  JROH5511  Potamogeton crispus Ann Lambrecht 2004-6-2 9 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  CAS-BOT-BC454010  Potamogeton pectinatus Ira L. Wiggins 1935-6-29 8051 San Mateo Pescadero Creek, about 1 mile west of Pescadero Comment
  UC279589  Potamogeton pectinatus W. A. Setchell, C. B. Setchell, H. E. Parks 1925-4-29 San Mateo Comment
  UCR141424  Potentilla anserina June Latting 1975-6-8 s.n. San Mateo Central Coast, slough across from Pescadero dump (on Bean Hollow Rd.), west of Pescadero 9 Comment
  CHSC39829  Potentilla anserina subsp. pacifica Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  SJSU2276  Potentilla anserina subsp. pacifica C. W. Sharsmith 1947-4-13 6757 San Mateo Pescadero Beach Comment
  UC1543108  Potentilla anserina subsp. pacifica Donald G. Nelson 1939-6-14 617 San Mateo e side Skyline Blvd (a few mi s of Daly City); s of Daly Cith Comment
  SD37699  Potentilla glandulosa Edith A. Purer 1933-5-10 3629 San Mateo Steven's Creek Comment
  CAS-BOT-BC516349  Prosartes hookeri J. H. Thomas 1954-4-3 3819 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  CAS-BOT-BC516353  Prosartes hookeri W. R. Dudley 1898-4-24 s.n. San Mateo El Corte de Madera Creek, Santa Cruz Peninsula Comment
  CAS-BOT-BC516359  Prosartes hookeri E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mountain Comment
  JROH4671  Prosartes hookeri John H. Thomas 1969-4-20 14900 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area below dam Comment
  SEINET12044826  Prosartes hookeri C. F. Baker 1903-1 5052 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC517394  Prosartes smithii W. R. Dudley 1904-3-1 s.n. San Mateo Goat Ranch, summit of Santa Cruz Mountains near old La Honda Road crossing Comment
  RSA181225  Prunella vulgaris var. lanceolata John H. Thomas 1964-6-19 10430 San Mateo 0.9 miles S of Tunitas Creek near Coast Hwy, 61 Comment
  UC1124441  Prunella vulgaris var. lanceolata N. K. Carlson 1935-6-28 97 San Mateo 1 mi e Pigeon Pt.; Santa Cruz Quad. Comment
  JROH5842  Prunella vulgaris var. vulgaris A. Lambrecht 2005-7-25 s.n. San Mateo West Menlo Park, California 43 Comment
  CAS-BOT-BC159842  Prunus cerasifera Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo Guadalupe Parkway. San Bruno Mountains Comment
  POM275641  Prunus cerasifera Lyman D. Benson 1929-3-9 1001 San Mateo Stream bank at woodside Comment
  RSA454145  Prunus ilicifolia L. M. Booth 1932-10-29 2119 San Mateo San Bruno Mountain. 61 Comment
  UC12763  Prunus ilicifolia J. Burtt Davy 1893-6-17 San Mateo Belmont Comment
  UC12764  Prunus ilicifolia J. Burtt Davy 1893-6-23 832 San Mateo Pilarcitos Canyon Comment
  JROH3749  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Zoo shack Comment
  RSA112479  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Near zoo, shack. At edge of Redwoods. Jasper Ridge. Comment
Read comments
Sep 19 2011
  CAS-BOT-BC156361  Prunus virginiana var. demissa George Oberlander 1949-6-25 245 San Mateo Pilarcitos Canyon Comment
  UCSC007421  Pseudognaphalium Randall Morgan 2010-5-29 5039 San Mateo Rockaway Beach Comment
  CAS-BOT-BC356858  Pseudognaphalium californicum A. D. E. Elmer 1903-6-1 4291 San Mateo Crystal Springs Lake Comment
  JROH768  Pseudognaphalium californicum John Hunter Thomas 1983-6-29 22704 San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Rattlesnake Rock Comment
  SJSU15820  Pseudognaphalium californicum John Rawlings, Ken Hickman 2016-7-21 1909 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC356854  Pseudognaphalium californicum Walter Knight; Irja Knight 1965-3-15 1235 San Mateo North facing- Colma Canyon - San Bruno Mountain Comment
  CAS-BOT-BC357115  Pseudognaphalium luteoalbum John H. Thomas 1963-5-8 10064 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC357116  Pseudognaphalium luteoalbum John H. Thomas 1963-5-8 10064 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC357121  Pseudognaphalium luteoalbum Fred Hemphill 1973-4-22 725 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC357125  Pseudognaphalium luteoalbum Fred Hemphill 1973-5-6 766 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH775  Pseudognaphalium luteoalbum John H. Thomas 1970-7-5 15657 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC357126  Pseudognaphalium luteoalbum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC357131  Pseudognaphalium luteoalbum Lewis S. Rose 1936-2-12 36005 San Mateo Burlingame 91 Comment
  CAS-BOT-BC357135  Pseudognaphalium luteoalbum R. E. Frenkel 1963-12-7 326 San Mateo San Francisco Water District, along road edge, ca. 0.5 mile east of Halfmoon [Half Moon] Bay Club toward Pilarcitos Reservoir Comment
  JROH784  Pseudognaphalium luteoalbum John Hunter Thomas 1986-5-6 24001 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bath house Comment
  SD30778  Pseudognaphalium ramosissimum Edith A. Purer 1933-8-13 5420 San Mateo Near Belmont Comment
  CAS-BOT-BC357507  Pseudognaphalium ramosissimum W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Comment
  CAS-BOT-BC361570  Pseudognaphalium stramineum L. R. Abrams; I. L. Wiggins 1939-6-3 428 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC361572  Pseudognaphalium stramineum Louis F. Pitelka 1973-6-16 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  JROH808  Pseudognaphalium stramineum John Hunter Thomas 1977-6-16 18780 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC31976  Pseudognaphalium stramineum F. P. McLean 1874-6-1 San Mateo Pescadero Comment
  UCSB11506  Pseudotsuga menziesii Olson, Jim 1962-4-15 San Mateo 2 miles east of Portola State Park of Portola State Park Road; 20 miles south of La Honda Comment
  NY63952  Pseudotsuga menziesii var. menziesii A. D. E. Elmer 04 1903 4562 San Mateo King's Mountain Comment
  UCSC007773  Pseudotsuga menziesii var. menziesii Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  UCD92953  Puccinellia maritima William Anderson 1968-4-20 s.n. San Mateo Redwood City. NE of the boat harbor on Bait Island. Comment
  JROH3755  Pyracantha fortuneana John H. Thomas 1967-6-1 12975 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC460835  Pyrola aphylla A. D. E. Elmer 1903-6-1 4297 San Mateo Pescadero Comment
  CAS-BOT-BC460836  Pyrola aphylla H. L. Mason 1921-7-3 s.n. San Mateo Butano Ridge Comment
  RSA0082794  Pyrola aphylla H. L. Mason 1921-7-3 s.n. San Mateo Butano Ridge. Comment
  CAS-BOT-BC362361  Pyrrocoma racemosa var. racemosa L. R. Abrams 1906-9-29 s.n. San Mateo Cooley's [Cooley] Landing Comment
  CAS-BOT-BC61711  Quercus agrifolia George Oberlander 1949-10-8 397 San Mateo Sawyer Ridge Comment
  SJSU16069  Quercus agrifolia Allen W. Jacobs 1936-12-8 32 San Mateo Found in Jasper Ridge. 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
  JROH2461  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-25 15790 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD45585  Quercus chrysolepis Roman Gankin; W. R. Hildreth 1966-5-17 s.n. San Mateo Elevation 1600 feet, ca. .4 mile northeast of Peak Mountain of greater Montara Mountain, San Mateo County, California. 487 Comment
  JROH2469  Quercus douglasii L. R. Abrams 1904-5-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on old road to the McDonough Ranch Comment
  CAS-BOT-BC389726  Quercus dumosa M. K. Wicksten 1971-6-15 63 San Mateo Unspecified Comment
  CAS-BOT-BC94274  Quercus durata Lewis S. Rose 1964-9-5 64068 San Mateo Emerald Lake, W of Redwood City 243 Comment
  SJSU1086  Quercus durata C. W. Sharsmith 1951-4-6 6638 San Mateo Woodside Hills, 3 mi E of Woodside 182 Comment
  CAS-BOT-BC105391  Quercus kelloggii Gertrude Anthony 1904-4-23 s.n. San Mateo Los Troncos Road (Foothills or Valley) Comment
  CAS-BOT-BC105395  Quercus kelloggii A. D. E. Elmer 1903-5-1 4520 San Mateo Searsville Lake Comment
  CAS-BOT-BC105396  Quercus kelloggii Le Roy Abrams 1898-3-1 s.n. San Mateo Woodside Comment
  JROH2497  Quercus kelloggii E. A. McGregor 1909-3-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET262925  Quercus kelloggii R. A. Kocher 1908-3-28 e 7 San Mateo Santa Cruz Mountain Peninsula road to Kings Mountain from Woodside 366 Comment
  JROH2519  Quercus lobata John H. Thomas 1971-8-5 16011 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38233  Quercus lobata Delzie Demaree 1929-10-17 3678 San Mateo King's Mountain Comment
  CAS-BOT-BC134785  Quercus wislizeni James McMurphy 1902-5-17 s.n. San Mateo Road to Kings Mt. Comment
  CAS-BOT-BC134793  Quercus wislizeni H. L. Mason 1929-12-1 s.n. San Mateo Swanton Comment
  CAS-BOT-BC134781  Quercus wislizeni W. R. Dudley 1902-11-28 s.n. San Mateo Santa Cruz Peninsula. In front of Murphy Place, Upper Pescadero Creek Comment
  JROH2527  Quercus wislizeni var. frutescens W. R. Dudley 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Searsville Reservoir Comment
  POM270261  Quercus wislizeni var. wislizeni Lyman Benson 1932-8-1 4028 San Mateo Stanford University, Santa Cruz Mt. Range, Corte Madera Creek watershed. 122 Comment
  CAS-BOT-BC362547  Rafinesquia californica Fred Hemphill 1973-5-14 824 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1199  Rafinesquia californica John H. Thomas 1965-5-12 10645 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389716  Ranunculus Sharon Rogers 1966-4-23 s.n. San Mateo Field east of Canada Road, between North and South Gates of Filoli Estate Comment
  SD1764  Ranunculus californicus Ulysses S. Grant IV June 1925 San Mateo Near La Honda Comment
  UC511335  Ranunculus californicus Lyman Benson 1931-3-15 2642 San Mateo Emerald Lake San Francisco Bay Watershed, Santa Cruz Mt. Range, Redwood C 152 Comment
  POM268416  Ranunculus californicus Lyman Benson 1930-4-6 s.n. San Mateo San Lorenzo Mt: Crystal Springs Lake. 183 Comment
  RSA119760  Ranunculus californicus I. L. Wiggins 1929-3-24 3381 San Mateo On road to Searville Lake, back of 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
  SD80176  Ranunculus californicus R. S. Woglum 1935-5-25 1156 San Mateo San Francisco area, Skyline Drive Comment
  POM268184  Ranunculus californicus var. cuneatus Lyman Benson 1935-3-10 6257 San Mateo Menlo Park. San Franciso Bay. 30 Comment
  POM269867  Ranunculus lobbii Roxana S. Ferris 1918-3-31 s.n. San Mateo Mud Lakes, Coal Mine Ridge Comment
  POM269868  Ranunculus lobbii W. R. Dudley 1904-4-22 s.n. San Mateo Corte Madera Creek along New Grade Road Comment
  JROH3500  Ranunculus muricatus John Hunter Thomas 1987-5-7 24262 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA120998  Ranunculus muricatus A. D. E. Elmer 1903-06 5 ++2 San Mateo San Pedro. Comment
  UC204201  Ranunculus muricatus A. D. E. Elmer June 1903 4661 San Mateo San Pedro Comment
  RSA10410  Ranunculus muricatus Carl B. Wolf 1927-6-15 2164 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  UCD97311  Ranunculus trilobus Phil Greer 2002-4-17 s.n. San Mateo Hwy 101, in Half Moon Bay. Comment
  CAS-BOT-BC74338  Raphanus sativus Ned Cahill 1974-4-30 214 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  JROH5825  Rhamnus alaternus John Rawlings 2016-2-1 1662 San Mateo Jasper Ridge Biological Preserve, Stanford University; upper Trail 10 180 Comment
  UC1121739  Rhamnus californica C. M. Belshaw 1935-1-25 1458 San Mateo 2.8 mi w Woodside; Santa Cruz Quad. 457 Comment
  CAS-BOT-BC55890  Rhamnus crocea H. A. Dutton 1900-2-1 s.n. San Mateo unspecified Comment
  JROH3558  Rhamnus crocea Carl B. Wolf 1928-3-16 1540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC437974  Ribes Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo; San Bruno Mountains Comment
  CAS-BOT-BC92489  Ribes aureum var. gracillimum James McMurphy 1906-4-4 s.n. San Mateo Creek above Judge Allen's, Santa Cruz Mountains. Comment
  RSA176616  Ribes californicum John H. Thomas 1964-4-7 10302 San Mateo Near edge of Searsville Lake. Jasper Ridge Biological experiment area, about 5 miles SW of Palo Alto. Coordinates are approximate. Comment
  JEPS121444  Ribes californicum var. californicum Adam C. Schneider with C. Matt Guilliams 2013-2-2 8 San Mateo Crystal Springs Reservoir Comment
  JROH2639  Ribes californicum var. californicum John H. Thomas 1964-4-7 10302 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near edge of Searsville Lake. Comment
  JROH2641  Ribes californicum var. californicum John H. Thomas 1968-3-17 14178 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2649  Ribes californicum var. californicum John Hunter Thomas 1983-2-21 21280 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate Comment
  OBI14065  Ribes divaricatum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake 122 Comment
  UC202806  Ribes malvaceum A. D. E. Elmer March 1903 4750 San Mateo Portola Comment
  UC311538  Ribes malvaceum A. D. E. Elmer March 1903 4535 San Mateo Portola Comment
  CAS-BOT-BC212824  Ribes menziesii W. R. Dudley 1894-3-23 s.n. San Mateo By La Honda Road Comment
  CAS-BOT-BC212838  Ribes menziesii W. R. Dudley 1893-4-1 s.n. San Mateo Near San Francisquito Creek above Searsville Resevoir Comment
  CAS-BOT-BC212814  Ribes menziesii William Russel Dudley 1894-4-1 s.n. San Mateo Above St. Dennis Church, Searsville Comment
  CAS-BOT-BC212818  Ribes menziesii W. R. Dudley 1906-6-12 s.n. San Mateo Back of winery, West Union Gulch Comment
  SEINET12220270  Ribes menziesii Unknown 1932-1 8946 San Mateo Los Francos Woods Comment
  JROH2668  Ribes menziesii var. menziesii John H. Thomas 1974-6-27 17447 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS48600  Ribes sanguineum Elsa Kraeger 1926-2-21 San Mateo La Honda Comment
  SEINET13942794 Image available Ribes sanguineum Lewis S. Rose 1947-1 47027 San Mateo Kings Mountain, alt ca 2000 ft 610 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-BC144612  Ribes sanguineum var. glutinosum George Oberlander 1949-4-9 51 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC144630  Ribes sanguineum var. glutinosum Ira L. Wiggins 1929-3-23 3371 San Mateo Road to Mud Lake, near Stanford University Comment
  CAS-BOT-BC144632  Ribes sanguineum var. glutinosum Alice Eastwood 1922-5-27 11326 San Mateo La Honda Comment
  JROH2674  Ribes sanguineum var. glutinosum John H. Thomas 1968-3-17 14174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2680  Ribes sanguineum var. glutinosum John Hunter Thomas 1981-4-5 20274 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  JROH2682  Ribes sanguineum var. glutinosum John Hunter Thomas 1983-4-21 21645 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along causeway. Comment
  UC1127602  Ribes sanguineum var. glutinosum G. E. Sindel 1935-8-13 328 San Mateo San Gregorio Creek Santa Cruz Quadrangle Comment
  UC676760  Ribes sanguineum var. glutinosum Reed C. Rollins 1941-2-22 2936 San Mateo about 10 mi nw Palo Alto; Coast Range 152 Comment
  RSA0019094  Ribes sanguineum var. glutinosum A. D. E. Elmer 1903-03 4470 San Mateo Portola Comment
  RSA0019110  Ribes sanguineum var. glutinosum Lyman Benson 1929-3-5 976 San Mateo King s Mountain. Comment
  RSA0019113  Ribes sanguineum var. glutinosum L. R. Abrams, W. W. Eggleston 1924-3-23 19562 San Mateo Coast Range, near Palo Alto. 60 Comment
  CAS-BOT-BC363091  Rigiopappus leptocladus John H. Thomas 1961-5-14 9382 San Mateo Just north of dam on San Mateo Creek 121 Comment
  CDA9435  Romanzoffia californica D. G. Kelch 2002-5-13 s.n. San Mateo Pilarcitos Canyon, SF watershed. 0 Comment
  RSA0110964  Romanzoffia californica L. R. Abrams 1915-3-23 5568 San Mateo Crystal Springs - San Mateo Road on rocky bluff. Comment
  UC1084381  Rorippa G. Thomas Robbins 1937-4-11 81 San Mateo along Skyline Boulevard near County Jail (s of San Francisco); s of San Francisco Comment
  UC10721  Rorippa curvisiliqua Alice Eastwood 1896-4-1 San Mateo between Crystal Springs and Millbrae; bet. Crystal Springs and Millbrae Comment
  JROH1580  Rorippa palustris subsp. palustris John Hunter Thomas 1977-6-16 18784 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1583  Rorippa palustris subsp. palustris John Hunter Thomas 1979-9-9 19712 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  CAS-BOT-BC146355  Rosa J. Ed. McClellan; Bonnie McClellan 1968-6-1 s.n. San Mateo Butano Fire Trail between Cloverdale Rd. & west boundary of Butano State Park Comment
  RSA499266  Rosa californica E. S. Spalding 1923-8-3 s.n. San Mateo 3 mi west of Redwood Comment
  POM222902  Rosa gymnocarpa S. S. Berry 1909-4-3 s.n. San Mateo Bear Creek Canyon Road 335 Comment
  UC311147  Rosa gymnocarpa A. D. E. Elmer May, 1903 4923 San Mateo Pescadero Creek; on the Iverson's Place Comment
  NY335771  Rosa piscatoria A. D. E. Elmer 05 1903 4923 San Mateo Pescadero Comment
  CAS-BOT-BC152831  Rubus parviflorus W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Ridge - Santa Cruz Peninsula Comment
  CAS-BOT-BC152835  Rubus parviflorus A. D. E. Elmer 1903-6-1 4294 San Mateo Alpine School House Comment
  CAS-BOT-BC152836  Rubus parviflorus George Oberlander 1950-4-23 902 San Mateo Pilarcitos Canyon - San Francisco Watershed Reserve Comment
  CAS-BOT-BC152871  Rubus parviflorus Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Above the quarry - San Bruno Mountain Comment
  CAS-BOT-BC152875  Rubus parviflorus R. Hoffough 1929-5-11 s.n. San Mateo La Honda Road Comment
  CAS-BOT-BC156770  Rubus spectabilis W. R. Dudley 1900-3-16 s.n. San Mateo By bridge over Pilarcitos road (Spanishtown & San Mateo) Comment
  CAS-BOT-BC156772  Rubus spectabilis Peter H. Raven 1951-3-12 2749 San Mateo N. base San Bruno Mountains Comment
  CAS-BOT-BC157068  Rubus ursinus J. H. Thomas 1949-4-17 296 San Mateo Along bank of San Francisquito Creek near University Ave. and Newell Rd., Palo Alto Comment
  CAS-BOT-BC157094  Rubus ursinus W. R. Dudley 1895-9-15 s.n. San Mateo [El Corte de Madera] Corte Madera Creek, Lumber Camp Comment
  CAS-BOT-BC157098  Rubus ursinus John Thomas Howell 1938-6-4 13889 San Mateo Burlingame Comment
  CAS-BOT-BC157100  Rubus ursinus Peter H. Raven 1950-4-30 1972 San Mateo Above streets of Montara 15 Comment
  CAS-BOT-BC157102  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6050 San Mateo Montara Mt. above Pt. San Pedro Comment
  LA208241  Rubus ursinus John Thomas Howell; 1938-6-4 13888 San Mateo San Francisco Bay, Burlingame Comment
  RSA101000  Rubus ursinus G. Oberlander 1949-4-9 25 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  UCSB17156  Rubus ursinus Schulte, John 1963-4-14 San Mateo Jasper Ridge 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  UCSB18180  Rubus ursinus Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough, California 91 Comment
  POM223623  Rubus vitifolius S. S. Berry 1909-3-31 s.n. San Mateo San Francisquito Creek. 61 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-BC422094  Rumex acetosella George Oberlander 1949-4-9 59 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  RSA185747  Rumex acetosella John H. Thomas 1949-4-6 237 San Mateo 4 miles S of Daly city Comment
  CAS-BOT-BC421819  Rumex conglomeratus A. D. E. Elmer 1903-6-1 4276 San Mateo San Mateo Comment
  CAS-BOT-BC421823  Rumex conglomeratus Carl B. Wolf 1929-4-26 3658 San Mateo Woodside Comment
  JROH3297  Rumex conglomeratus John H. Thomas 1974-6-27 17452 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the low flow crossing below Searsville Dam. Comment
  CAS-BOT-BC421574  Rumex crassus Alice Eastwood; John Thomas Howell 1938-6-26 6072 San Mateo Waddell Creek Comment
  CAS-BOT-BC433360  Rumex crispus David D. Keck 1932-5-6 1459 San Mateo Belmont Comment
  CAS-BOT-BC433362  Rumex crispus George Oberlander 1949-7-30 328 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  UC1101213  Rumex maritimus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1590 San Mateo mouth of Pescadero Creek Pescadero Creek Comment
  CAS-BOT-BC433819  Rumex pulcher A. D. E. Elmer 1903-7-1 4778 San Mateo Pilarcitos Stone Dam 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
  CAS-BOT-BC433829  Rumex pulcher Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  SD39773  Rumex salicifolius Edith A. Purer 1932-7-18 4015 San Mateo Half Moon Bay, sand dunes Comment
  CAS-BOT-BC433998  Rumex salicifolius George Oberlander 1949-7-24 306 San Mateo San Francisco Watershed Reserve. About Upper Crystal Spr. Lake Comment
  JEPS39879  Rumex salicifolius var. crassus unknown 1925-5-28 15 San Mateo Salada Comment
  JROH2215  Rupertia physodes John H. Thomas 1975-6-5 17945 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  UCD81851  Rupertia physodes Alan T. Whittemore 1976-5-31 135 San Mateo Alpine Road, near east end of Corte Madera Creek Trail. Mixed evergreen forest. Sequoia in sheltered spots. Acer, Quercus and Alnus in open areas and by stream. Flowers past, originally purple. Trailing on forest floor. Foliage with somewhat unpleasant odor. Comment
  CAS-BOT-BC239847  Rytidosperma penicillatum Bert Johnson 1989-3-17 s.n. San Mateo San Bruno Mountains. Randolph Ravine Comment
  POM163965  Sagina maxima subsp. crassicaulis Copeland 1903-6-5 3329 San Mateo Montara Point. Comment
  SJSU15421  Sagina procumbens Toni Corelli 2011-8-25 709 San Mateo Ano Nuevo State Park, Cove Beach 7 Comment
  UC1191410  Salicornia europaea S. Galen Smith 1951-6-28 1917 San Mateo ca 1 mi n San Mateo (along the Bayshore Highway 101) Comment
  SEINET4174272  Salicornia virginica G. E. Sindel 1935-7-25 303 San Mateo Mouth of Pescadero Creek Comment
  JROH3845  Salix exigua var. hindsiana John H. Thomas 1976-10-16 18403 San Mateo Jasper Ridge Biological Preserve, Stanford University. Now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH3851  Salix exigua var. hindsiana John Hunter Thomas 1988-4-28 24414 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway Comment
  UC469121  Salix fragilis N. L. Gardner Sept. 1927 San Mateo Cypress Lawn Cemetery, near Colma, San Mateo Co., California Comment
  UC492365  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-BC125370  Salix lasiandra var. lasiandra W. R. Dudley 1898-4-24 s.n. San Mateo El Corte de Madera Creek Comment
  CAS-BOT-BC125372  Salix lasiandra var. lasiandra W. R. Dudley 1893-1-1 s.n. San Mateo Hill north of South San Francisco Comment
  UCD111575  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-16 65007 San Mateo Searsville Lake. 121 Comment
  CAS-BOT-BC107140  Salix lasiolepis Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills 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
  POM223617  Salix lasiolepis S. S. Berry 1909-2-27 s.n. San Mateo Near Los Francos Creek. 46 Comment
  RSA184897  Salix lasiolepis L. S. Rose 1965-3-8 65004 San Mateo Searsville Lake. 122 Comment
  UC481898  Salix lasiolepis C. R. Ball and G. W. Hendry 1931-2-22 15 San Mateo in arroyo near San Gregorio Creek (100 m from ocean); San Gregorio Comment
  UCR279849  Salix lasiolepis Peter Rubtzoff 1976-3-14 8446 San Mateo San Francisco Bay Region, San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; upper part of East Fork Colma Creek Canyon 220 Comment
  CAS-BOT-BC108252  Salix lasiolepis var. bigelovii Alice Eastwood 1920-3-15 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC124362  Salix lasiolepis var. lasiolepis David D. Keck 1932-1-29 1358 San Mateo Colma Creek, at Cypress Lawn Cemetery, northern San Mateo County Comment
  CAS-BOT-BC124481  Salix lasiolepis var. lasiolepis Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo Comment
  CAS-BOT-BC124485  Salix lasiolepis var. lasiolepis Josephine D. Randall 1906-3-18 360 San Mateo San Francisquito Creek near Stanford University Comment
  CAS-BOT-BC124486  Salix lasiolepis var. lasiolepis W. R. Dudley 1902-5-1 s.n. San Mateo Near Iverson's, Peter's Creek Comment
  UC5090  Salix scouleriana Harry A. Dutton 1899-12-10 San Mateo above Searsville (on rd. below Buck Horn Ranch) Comment
  CAS-BOT-BC126480  Salix sitchensis Josephine D. Randall 1908-3-28 s.n. San Mateo [King's] Kings Mt. Road Comment
  CAS-BOT-BC126482  Salix sitchensis W. R. Dudley 1899-5-14 s.n. San Mateo So.W. of Baden Station Comment
  CDA33774  Salix sitchensis D. G. Kelch 2011-3-13 11 .051 San Mateo Pacifica. Along sea bluffs Comment
  POM223618  Salix sitchensis S. S. Berry 1909-3-13 s.n. San Mateo Kings Mtn Rd. 457 Comment
  POM87715  Salix sitchensis L. R. Abrams 1902-03 2272 San Mateo [Rim of?] Mountain Comment
  UC306640  Salix sitchensis A. D. E. Elmer May, 1903 4917 San Mateo Portola Comment
  CDA3228  Salsola soda T. C. Fuller 1969-6-12 18550 San Mateo West end of Dumbarton Bridge, Menlo Park. 0 Comment
  RSA262204  Salsola soda John H. Thomas 1974-10-6 17615 San Mateo San Mateo County. Palo Alto Yacht Harbor near airport. 0 Comment
Read comments
Apr 3 2009
  RSA669744  Salsola soda T. C. Fuller 1968-9-25 17640 San Mateo above the zone of Salicornia, w. end of Dumbarton Bridge, Menlo park Comment
  UC138837  Salvia spathacea C. F. Baker 1903-4-6 1878 San Mateo San Bruno Hills San Francisco Comment
  CAS-BOT-BC235035  Sambucus Peter Rubtzoff; Patricia Fallon 1987-8-26 9840 San Mateo San Bruno Mountains. Saddle area on north side of Guadelupe [Guadalupe] Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadelupe [Guadalupe] Road. Upper part of East Fork Colma Creek Canyon Comment
  CAS-BOT-BC235036  Sambucus L. R. Abrams 1916-3-26 5589 San Mateo Road between San Mateo and Half Moon Bay, coast side of grade Comment
  POM284212  Sambucus caerulea Lyman Benson 1933-6-14 4447 San Mateo Menlo Park 61 Comment
  JROH1675  Sambucus nigra subsp. caerulea John Hunter Thomas 1985-5-22 23669 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236451  Sambucus racemosa subsp. racemosa Philip Wheeler 1965-5-18 s.n. San Mateo Base of mountain near Olivet Cemetery, San Bruno Mountain 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-BC236456  Sambucus racemosa subsp. racemosa W. R. Dudley 1900-3-16 s.n. San Mateo Ner bridge over Pilarcitos Creek, road to Halfmoon Bay, Santa Cruz Mountain Peninsula Comment
  UC1123153  Sanicula arctopoides H. S. Yates 1935-2-3 5012 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  UC75021  Sanicula arctopoides Dr. E. L. Greene 1902-3-30 425 San Mateo Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  JROH319  Sanicula bipinnata Ann Lambrecht 2003-4-9 5 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11, W edge of trail, around curve SW of Collinsia heterophylla site Comment
  CAS-BOT-BC223325  Sanicula bipinnatifida H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC223326  Sanicula bipinnatifida J. H. Thomas 1949-4-1 212 San Mateo West of Redwood City Comment
  SJSU1080  Sanicula bipinnatifida C. W. Sharsmith 1951-4-6 5820 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  UC1084385  Sanicula bipinnatifida G. Thomas Robbins 1937-4-11 91 San Mateo near Spring Valley Lakes (along road to Woodside) Comment
  CAS-BOT-BC223321  Sanicula bipinnatifida George Oberlander 1949-4-17 99 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  JROH329  Sanicula crassicaulis John H. Thomas 1961-5-5 9212 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  UCR124188  Sanicula crassicaulis George K. Helmkamp, E. A. Helmkamp 2001-6-2 6784 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
  NY406244  Sanicula serpentina A. D. E. Elmer 04 1903 4498 San Mateo Portola Comment
  JROH1214  Santolina chamaecyparissus John Hunter Thomas 1977-6-16 18798 San Mateo Jasper Ridge Biological Preserve, Stanford University; at entrance to Searsville Lake at Sand Hill Road 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
  CHSC45763  Satureja douglasii Steven Triano 1988-5-24 198 San Mateo Ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  UCD137506  Scabiosa atropurpurea Collector Unknown 1925-6-15 s.n. San Mateo Pescadero, Santa Cruz Road. Comment
  JROH348  Scandix pecten-veneris John H. Thomas 1955-5-6 5011 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH354  Scandix pecten-veneris John Hunter Thomas 1977-4-28 18564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA790257  Schedonorus arundinaceus Peter Rubtzoff 1976-6-13 8632 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and NW of Fog Forest. Comment
  CAS-BOT-BC283615  Schedonorus pratensis Elizabeth McClintock; Paul Reeberg 1989-5-30 s.n. San Mateo San Bruno Mountains. In a seep above Lipman School 60 Comment
  JROH4417  Schoenoplectus acutus var. occidentalis John Hunter Thomas 1988-6-2 24502 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near old bridge. Comment
  CAS-BOT-BC111783  Schoenoplectus pungens W. R. Dudley 1908-10-4 s.n. San Mateo Near Laguna Salada Comment
  SEINET11754562  Schoenoplectus pungens Unknown 1932-1 9115 San Mateo Half Moon Bay 0 Comment
  UC841022  Scirpus maritimus Lewis S. Rose 1935-8-13 35565 San Mateo Salada 3 Comment
  UC2159  Scirpus microcarpus J. Burtt Davy 1893-6-22 765 San Mateo marsh at head Lake Pilarcitos; marsh at head Lake Pilarcitos Comment
  JEPS62104  Scoliopus bigelovii Inez Smith March 1915 San Mateo Hillsboro Comment
  POM51487  Scoliopus bigelovii H. R. Ebright 1922-03 s.n. San Mateo Lake Pilarcitos. Comment
  CAS-BOT-BC519017  Scoliopus bigelovii Alice Eastwood 1922-3-1 s. n. San Mateo Lake Pilarcitos Comment
  RSA299412  Scoliopus bigelovii Inez Smith 1915-03 s.n. San Mateo Hillsboro. 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
  SEINET12055153  Scoliopus bigelovii Unknown 1932-1 8918 San Mateo La Honda Road to Skyline Drive Comment
  SEINET5570939  Scoliopus bigelovii H. S. Gentry 1931-1 20 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  SEINET926247  Scoliopus bigelovii H. S. Gentry 1931-1 20 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  CDA7621  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  JROH5461  Scribneria bolanderi John Rawlings 2008-5-4 1033 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vicinity of Phalaris californica seep. 171 Comment
  RSA131004  Scrophularia californica Deborah Hichborn 1920-4-20 s.n. San Mateo Near San Francisquito Creek. Santa Cruz Mountain Peninsula. Comment
  JROH2889  Scutellaria tuberosa John Hunter Thomas 1987-4-23 24208 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA14791  Scutellaria tuberosa L. S. Rose 1935-5-1 35140 San Mateo Belmont. Comment
  JROH5752  Scutellaria tuberosa L. Nordby 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Oak woodland just west of the serpentine grasslands on the top of Jasper Ridge Comment
  JROH1897  Sedum spathulifolium John Hunter Thomas 1981-5-5 20535 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC363392  Senecio aronicoides Alice Eastwood 1914-3-12 3752 San Mateo San Bruno Hills Comment
  JROH1222  Senecio aronicoides John Hunter Thomas 1986-5-17 24053 San Mateo Jasper Ridge Biological Preserve, Stanford University; creek trail downstream from Rattlesnake Rock Comment
  CAS-BOT-BC363390  Senecio aronicoides Catherine A. Toschi 1963-3-17 63 :62 San Mateo East slope San Bruno Mountains below radio station 213 Comment
  CAS-BOT-BC363735  Senecio hydrophilus Alice Eastwood; John Thomas Howell 1938-6-26 6058 San Mateo Near Pescadero Comment
  CAS-BOT-BC363736  Senecio hydrophilus Le Roy Abrams 1901-9-1 2220 San Mateo Menlo Park, borders of S.F. Bay Comment
  CAS-BOT-BC364241  Senecio sylvaticus John H. Thomas 1965-4-29 10618 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH1223  Senecio vulgaris John H. Thomas 1967-4-20 12706 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1226  Senecio vulgaris John H. Thomas 1973-4-14 16558 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC364630  Senecio vulgaris Ira L. Wiggins 1973-6-24 22030 San Mateo Bed of San Francisquito Creek, about 60 m above Pope Street bridge, along line between Santa Clara and San Mateo Counties Comment
  CAS-BOT-BC364632  Senecio vulgaris George Oberlander 1950-4-23 837 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC364637  Senecio vulgaris John H. Thomas 1963-5-20 10146 A San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  UCSC007780  Senecio vulgaris Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC80289  Sequoia sempervirens David D. Keck 1932-2-14 1368 San Mateo La Honda road, east slope of Coast Range above Searsville Lake 304 Comment
  HSC2616  Sequoia sempervirens P. A. Murphy 1965-4-16 41 San Mateo 6 mi. from Half Moon Bay in Hatch's Woods 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
  RSA181221  Sequoia sempervirens John H. Thomas 1964-11-29 10542 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto; along San Francisquito Creek below dam. Comment
  UC118916  Sequoia sempervirens C. F. Baker 1902-1-15 319 San Mateo w side of King's Mountain Coast Range, King's Mountain Comment
  UC429816  Sequoia sempervirens W. R. Dudley 1901-1 San Mateo near Searsville Comment
  SEINET5334860  Sequoia sempervirens R. L. Oliver 1976-4-18 s.n. San Mateo La Honda. San Mateo Memorial Park. Comment
  SEINET8057876 Image available Sequoia sempervirens M. E. Springer 1946-1 735 San Mateo Skyline Blvd. near La Honda Comment
  SJSU10395  Setaria parviflora W. J. Cervenka 1962-10-21 San Mateo Portola Rd near Alpine Rd Comment
  SJSU10484  Setaria viridis S. H. Casey 1975-6-14 490 San Mateo by residence, SW Redwood City Comment
  CDA6642  Sherardia arvensis Wm. Davis 1958-6-5 San Mateo San Bruno. 0 Comment
  SD39293  Sidalcea diploscypha Janet Turner 1933-5-30 3669 San Mateo Woodside. Comment
  SD39294  Sidalcea diploscypha McCallum 1933-5-30 3706 San Mateo Spring Valley Comment
  UCD116582  Sidalcea hickmanii subsp. viridis S. Seiki 1998-5-2 2 San Mateo city of Pacifica, Montara Mountain, approximately 2.3 miles from San Pedro Valley along Devil's Slide heading west. Specimen found along trail about 0.25 mile in from the entrance to the trail. Comment
  CAS-BOT-BC205604  Sidalcea malviflora Dean Wm. Taylor 1988-3-30 9469 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PG&E high-voltage powerlines crossing the mountain 237 Comment
  JEPS67241  Sidalcea malviflora subsp. malviflora W. L. Jepson 1921-4-3 9109 San Mateo canyon near Colma (Colma Canyon); n. San Mateo Co., Colma Canyon Comment
  CAS-BOT-BC389902  Silene Alice Eastwood 1912-6-10 328 San Mateo Millbrae Comment
  CAS-BOT-BC386851  Silene gallica Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountain. Bitter Cherry Ravine. Comment
  CAS-BOT-BC386855  Silene gallica John H. Thomas 1963-5-20 10132 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC386856  Silene gallica Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  CAS-BOT-BC389195  Silene laciniata subsp. californica A. D. E. Elmer 1903-6-1 4446 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC389196  Silene laciniata subsp. californica L. R. Abrams 1909-5-26 4237 San Mateo Santa Cruz Peninsula. Between Woodside and Crystal Springs Comment
  CAS-BOT-BC175278  Silene verecunda Elizabeth McClintock 1972-5-10 s.n. San Mateo East of Parking Lot summit of mountain. San Bruno Mountain Comment
  CAS-BOT-BC389900  Silene verecunda Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. North side of ridge road adjacent to Buckeye Canyon Comment
  CDA3853  Sisymbrium officinale W. Plummer 1971-7-9 San Mateo Dick Bulles property, Alpine Creek, Pescadero . 0 Comment
  UC845034  Sisyrinchium bellum Alice Eastwood 1915-6-13 4716 San Mateo Granada Comment
  CAS-BOT-BC176179  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
  CDA39382  Smilacina racemosa var. amplexicaulis T. C. Fuller 1960-4-2 4080 San Mateo La Honda Rd., 1 mile north of La Honda. 0 Comment
  UC518005  Smilacina stellata Lewis S. Rose 1933-4-9 33070 San Mateo Belmont Comment
  IRVC9074  Smilacina stellata var. sessilifolia P. W. Rundel 1962-4-12 1017 B San Mateo 1 mile East of Skyline Hwy on La Honda Rd. Comment
  UC73600  Solanum americanum Harley P. Chandler 1901-3-15 814 San Mateo w of Colma Comment
  SD38286  Solanum douglasii Edith A. Purer 1933-7-27 5389 San Mateo partially stabilized areas in sand dunes, two miles south of Pigeon Point Comment
  UC625421  Solanum douglasii L. R. Abrams, I. L. Wiggins 1939-6-3 425 San Mateo Ano Nuevo Point Comment
  UC733169  Solanum douglasii Roxana S. Ferris 1945-9-25 11106 San Mateo State Highway 1 n of Pedro Point Comment
  RSA130408  Solanum douglasii W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown). Comment
  SJSU15425  Solanum physalifolium var. nitidibaccatum Toni Corelli 2011-8-31 719 San Mateo Half Moon Bay east of of Hwy. 1 and south of Higgins Canyon Road 30 Comment
  CAS-BOT-BC154183  Solanum umbelliferum R. C. Rollins 1942-4-30 3001 San Mateo S.E. slope of the San Bruno hills, about 1 mile west of Brisbane Comment
  CHSC1938  Solanum umbelliferum V. Holt 1942-6-15 San Mateo Half Moon Bay. Comment
  JROH4186  Solanum umbelliferum John H. Thomas 1958-2-15 6988 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC157432  Solanum umbelliferum J. Penalosa 1963-3-9 2678 San Mateo Slopes southeast of 1314ft. summit 381 Comment
  JROH4195  Solanum umbelliferum John Hunter Thomas 1989-5-11 24732 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge on causeway, bridge separates two parts of lake Comment
  OBI9135  Solanum umbelliferum E. K. Balls 1948-3-19 7871 San Mateo Skyline Dr about 12 mi N of Santa Cruz 244 Comment
  POM57198  Solidago californica C. F. Baker 1902-10-1 1749 San Mateo Pillar Point. Comment
  CDA8732  Solidago canadensis A. Roach 1972-11-17 San Mateo Railroad right-of-way, South San Francisco. 0 Comment
  RSA133955  Solidago canadensis subsp. elongata John H. Thomas 1959-8-16 8065 San Mateo About two miles southwest of Pescadero. 61 Comment
  RSA18440  Solidago canadensis subsp. elongata C. B. Wolf 1927-6-29 568 San Mateo 3 miles south of San Gregorio. Comment
  UC1777680  Solidago elongata J. D. Skoss 1948-8-22 121 San Mateo San Vicente Canyon Comment
  CAS-BOT-BC365745  Solidago spathulata Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Power Line Ridge Comment
  CAS-BOT-BC365746  Solidago spathulata Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. Colma Canyon near old quarry Comment
  HSC24021  Solidago velutina subsp. californica Mary Katherine Wicksten 1971-8-20 207 San Mateo Huddart Park; area by King's Mtn. Rd., above Miwok Area Comment
  JROH1235  Solidago velutina subsp. californica W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1245  Soliva sessilis John Hunter Thomas 1980-5-8 19960 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1251  Soliva sessilis John Hunter Thomas 1987-5-5 24250 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Road Comment
  JROH1259  Sonchus asper subsp. asper John Hunter Thomas 1986-5-15 24043 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176778  Sonchus oleraceus John H. Thomas 1963-5-20 10112 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  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
  JROH5519  Sparganium eurycarpum var. eurycarpum James McMurphy 1906-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  RSA430754  Spartina foliosa Lyman Benson 1937-8-26 8493 San Mateo 3 mi south of San Mateo, San Francisco Bay watershed 0 Comment
  UCSC003832  Spergula arvensis Unknown unknown s.n. San Mateo Half Moon Bay, 2 miles inland. Half Moon Bay Comment
  JROH1765  Spergularia John Hunter Thomas 1987-5-7 24263 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1770  Spergularia John Hunter Thomas 1989-4-20 24637 San Mateo Jasper Ridge Biological Preserve, Stanford University; near caretakers trailers Comment
  CAS-BOT-BC166913  Spergularia arvensis Peter Rubtzoff 1976-5-22 8551 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  CAS-BOT-BC390453  Spergularia macrotheca var. macrotheca J. H. Thomas 1954-5-28 4245 San Mateo Guadalupe Valley, about 2 miles south of San Francisco - San Mateo County line 30 Comment
  CAS-BOT-BC390467  Spergularia macrotheca var. macrotheca Elsie M. Zeile 1921-7-30 s.n. San Mateo Salada Comment
  CAS-BOT-BC390459  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1937-10-1 615 San Mateo Near Burlingame Comment
  JROH1773  Spergularia rubra John Hunter Thomas 1992-5-26 25352 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  POM151816  Spergularia salina C. F. Baker 1902-10-20 1859 San Mateo Searsville. Comment
  CHSC60186  Stachys Jan M. Karaz 1979-5-22 35 San Mateo 500 ft w of Canada College Campus Drive, 1.5 mi w of Hwy 280. 5 Comment
  POM63302  Stachys ajugoides A. D. E. Elmer 1903-06 4260 San Mateo Crystal Springs Lake. Comment
  CDA20434  Stachys bullata A. Gilbert 1997-6-8 s.n. - 5 San Mateo San Francisco Bay Area; La Honda. 0 Comment
  JROH2910  Stachys bullata John Hunter Thomas 1987-5-19 24294 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2913  Stachys bullata John Hunter Thomas 1991-11-21 25098 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  JROH2916  Stachys bullata John Hunter Thomas 1992-7-24 25384 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Causeway Comment
  SBBG6546  Stachys bullata H. and M. Dearing 1933-5-14 San Mateo Skyline Drive, S of San Francisco Comment
  RSA101015  Stachys bullata G. Oberlander 1949-4-30 139 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  RSA505403  Stachys bullata Gordon H. True Jr. 1936-6-14 503 San Mateo Near coast, in canyon south of Salada Beach. 152 Comment
  SJSU15310  Stachys bullata Vince Ortisi 1975-9-27 3 San Mateo Saunders Shingle Mill (historical marker) off Tunitus Creek road. 457 Comment
  UC202802  Stachys chamissonis A. D. E. Elmer July 1903 4760 San Mateo Pilarcitos Stone Dam Comment
  JEPS82914  Stachys pycnantha Roy E. Buck and Randall A. Morgan 1983-6-7 334 San Mateo San Francisco Watershed Reserve; in triangle of Edgewood and Canada Rds and Hwy I-280 152 Comment
  UC1206470  Stachys pycnantha Le Roy Abrams 1902-9-21 2986 San Mateo Crystal Springs. Comment
  SEINET10581821  Stachys pycnantha Lewis S. Rose 1965-8-27 Rose 65093 San Mateo Emerald Lake, West of Redwood City, moist slopes. 244 Comment
  RSA217963  Stachys rigida subsp. quercetorum Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain, slope below parking lot. Comment
  RSA63022  Stachys rigida subsp. quercetorum L. S. Rose 1950-5-20 50139 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  CAS-BOT-BC394058  Stellaria media John H. Thomas 1965-4-29 10623 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC394054  Stellaria media Elizabeth McClintock 1965-3-21 s.n. San Mateo Along summit of ridge east of Brisbane Power Lines; San Bruno Mountain Comment
  JROH5560  Stellaria nitens John Rawlings 2013-4-19 1154 San Mateo Jasper Ridge Biological Preserve, Stanford University. South side of Trail 11 in a level section in chamise. 136 Comment
  JROH5388  Stipa miliacea var. miliacea John Hunter Thomas 1989-5-30 24757 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG35017  Stylomecon heterophylla A. D. E. Elmer -May-1903 4921 San Mateo San Pedro [Point?] Comment
  CAS-BOT-BC271647  Symphoricarpos albus var. laevigatus C. B. Wolf 1931-8-20 1194 San Mateo Los Trancos Creek 2 miles back of Stanford University near Schenkel's Camp 91 Comment
  RSA3068  Symphoricarpos albus var. laevigatus C. B. Wolf 1931-8-20 2325 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp. 91 Comment
Read comments
Sep 30 2011
  SD4989  Symphoricarpos albus var. laevigatus Ulysses S. Grant IV Jun 1925 San Mateo Near La Honda. Comment
  CAS-BOT-BC237068  Symphoricarpos mollis Fred Hemphill 1973-4-15 672 San Mateo Area north of Malabar Road and Melendy Drive, San Carlos 207 Comment
  HSC23934  Symphoricarpos mollis Mary Katherine Wicksten 1971-7-15 173 San Mateo Huddart Park, on Rd. to Family Campground. Comment
  CAS-BOT-BC99086  Symphyotrichum chilense John H. Thomas 1965-11-26 11454 San Mateo At intersection of Tunitas Creek Road and Lobos Creek cutoff 121 Comment
  SD30757  Symphyotrichum chilense Edith A. Purer 1933-8-25 5521 San Mateo Spring Valley, along roadside Comment
  CAS-BOT-BC99089  Symphyotrichum chilense Josephine D. Randall 1907-7-4 55 San Mateo Mills Lake near Stanford University - Santa Cruz Peninsula Comment
  HSC23979  Symphyotrichum chilense Mary Katherine Wicksten 1971-6-24 117 San Mateo Huddart Park, by park entrance Comment
  JEPS81902  Symphyotrichum subspicatum Roger Raiche 1982-9-6 20720 San Mateo Montara Mt. 30 Comment
  CAS-BOT-BC99387  Symphyotrichum subspicatum Phillip Wheeler 1965-5-23 s.n. San Mateo Radio Road, San Bruno Mountain Comment
  UC1927817  Symphyotrichum subspicatum David Keil 1988-11-19 21201 San Mateo Highway 1, south of Half Moon Bay Comment
  CAS-BOT-BC98361  Symphyotrichum subulatum var. parviflorum W. Knight; I. Knight 1966-10-14 2037 San Mateo San Bruno Mountain - Crocker Hills marsh between Geneva St. and Guadalupe Parkway Comment
  CAS-BOT-BC353469  Taraxacum officinale Peter Rubtzoff 1976-3-28 8449 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. 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
  JROH3001  Taraxia ovata John H. Thomas 1971-4-10 15761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2997  Taraxia ovata W. R. Dudley 1894-3-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; canada above Searsville Reservoir Comment
  UCSB11176  Taraxia ovata Connelly, Dianne 1962-4-21 San Mateo above main office of Westhorough homes development; 10 miles north of San Francisco on Highway 5 121 Comment
  UCSB18688  Taraxia ovata Schulte, John 1963-4-27 San Mateo Jasper Ridge; 3 miles southwest of Stanford Campus; between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC447478  Tellima grandiflora W. R. Dudley 1900-3-17 s.n. San Mateo Ravine, north of Seal Cove Comment
  JROH3909  Tellima grandiflora John H. Thomas 1961-5-5 9209 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below Searsville Dam 76 Comment
  UC203041  Tellima grandiflora A. D. E. Elmer Jun 1903 4702 San Mateo Pescadero Comment
  UCR141449  Tellima grandiflora June Latting 1975-6-8 s.n. San Mateo Santa Cruz Mtns., Pescasero Road, 8 miles east of highway Calif. Hwy 1 122 Comment
  CAS-BOT-BC447482  Tellima grandiflora George Oberlander 1950-5-21 877 San Mateo pilarcitas canyon Comment
  CAS-BOT-BC438271  Tetragonia tetragonoides Saichi Kawahara 1969-12-3 1739 San Mateo Mouth of Ana [Ano] Nuevo Creek Comment
  JROH3503  Thalictrum fendleri var. polycarpum L. R. Abrams 1901-3-1 1171 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3506  Thalictrum fendleri var. polycarpum Daniel Cohen 1953-4-11 14 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing near roadside at edge of Searsville Lake Comment
  JROH5910  Thalictrum fendleri var. polycarpum L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail between Escobar Gate and the weather station. Comment
  CAS-BOT-BC66656  Thysanocarpus curvipes J. H. Thomas 1954-5-7 4068 San Mateo Near Skyline Boulevard. About 2 miles southwest of Black Mountain. 655 Comment
  CAS-BOT-BC66659  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1619  Thysanocarpus curvipes John Hunter Thomas 1990-4-7 24801 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1595  Thysanocarpus curvipes subsp. elegans John Hunter Thomas 1981-4-21 20455 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC447581  Tiarella trifoliata var. unifoliata L. R. Abrams 1907-8-26 s.n. San Mateo Spring near King's 762 Comment
  UCD116982  Toxicodendron diversilobum W. A. Harvey; J. M. Tucker 1948-6-29 1711 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  JROH4761  Toxicoscordion fremontii John Hunter Thomas 1982-2-19 20800 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral near Goya Gate Comment
  CDA7720  Tragopogon dubius I. J. Campbell 1964-11-19 San Mateo State Highway 1 & Whitehouse Ranch Road, Pescadero. 0 Comment
  UCR253355  Tragopogon porrifolius A. C. Sanders 2014-8-3 41235 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  CAS-BOT-BC377138  Tragopogon porrifolius Phillip Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crocker Industrial Park Comment
  CAS-BOT-BC389711  Tragopogon porrifolius L. Sigal 1969-5-1 280 San Mateo Campus of San Mateo Comment
  RSA128596  Tragopogon porrifolius P. H. Raven 1950-6-3 2213 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  RSA10319  Trientalis latifolia H. A. Barker 1929-5-1 544 San Mateo Kings Mt Comment
  POM278023  Trifolium albopurpureum Lyman D. Benson 1935-5-5 6527 San Mateo Lake Searsville. 152 Comment
  RSA178681  Trifolium albopurpureum John H. Thomas 1964-4-19 10319 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Near Searsville Lake. Comment
  UCD107567  Trifolium albopurpureum Michael A. Vincent; Ethan H. Freid 1998-4-9 8202 San Mateo East side of Canada Road, ca. 200 yards southeast of its junction with Edgewood Road, just southwest of I-280, at Filoli Center. Comment
  UC16607  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1893-6-17 774 San Mateo Belmont Comment
  JROH2234  Trifolium arvense Toni Corelli 2006-5-30 312 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road G, in the center of road that goes to Douglas' iris site, in disturbed area in large mammal camera site 4 111 Comment
  JEPS127847  Trifolium bifidum var. bifidum Adam C. Schneider with C. Matt Guilliams 2013-4-7 85 San Mateo Comment
  JROH2244  Trifolium bifidum var. bifidum John Hunter Thomas 1981-4-23 20474 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC575709  Trifolium bifidum var. decipiens Lewis S. Rose 1935-5-1 35134 San Mateo Redwood City Comment
  RSA14963  Trifolium bifidum var. decipiens L. S. Rose 1935-5-1 35134 San Mateo Redwood City Comment
  POM277941  Trifolium ciliolatum Lyman D. Benson 6529 San Mateo Lake Searsville, Stanford University. 152 Comment
  POM278639  Trifolium depauperatum Lyman D. Benson 1930-5-1 2064 San Mateo Stanford University. 122 Comment
  UC165566  Trifolium depauperatum var. amplectens J. Burtt Davy 1895-1 1020 San Mateo Pilarcitos Comment
  JROH2279  Trifolium dubium John Hunter Thomas 1978-4-25 19150 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2287  Trifolium fucatum John H. Thomas 1958-5-10 7148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM18836  Trifolium fucatum var. fucatum C. F. Baker 1902-5-1 693 San Mateo Belmont Comment
  POM223326  Trifolium fucatum var. fucatum L. S. Rose 1935-5-4 35152 San Mateo Burlingame. Comment
  JROH5588  Trifolium gracilentum John H. Thomas 1969-4-12 14880 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2327  Trifolium hirtum John Hunter Thomas 1986-4-22 23975 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5566  Trifolium hirtum John Rawlings 2013-4-30 1197 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along east side of Road C south of the San Francisquito Creek bridge. 89 Comment
  JROH2319  Trifolium hirtum John Hunter Thomas 1981-5-14 20576 San Mateo Jasper Ridge Biological Preserve, Stanford University; along dirt road near main entrance Comment
  SJSU15437  Trifolium microcephalum Toni Corelli 2010-5-13 606 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  UCSC006343  Trifolium obtusiflorum Randall Morgan 1995-6-22 2793 San Mateo Ridge W of Waterman Creek Comment
  SEINET5628487 Image available Trifolium olivaceum Unknown 1907-1 8554 San Mateo Back of San Mateo Comment
  SEINET10630892  Trifolium pratense Robert A. Norris 1977-5-2 Norris 3567 San Mateo In disturbed soil on gravelly bank by Interstate Hwy. 280, just S of Farmhill Blvd. Exit, Woodside, San Mateo Co., California. Comment
  CDA33537  Trifolium resupinatum L. Kuwahara 2010-6-11 PDR# 1621663 San Mateo Menlo Park veterinarian submitted as clover sample. 0 Comment
  JROH2362  Trifolium subterraneum John Hunter Thomas 1987-5-19 24299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2363  Trifolium subterraneum John Hunter Thomas 1988-5-3 24435 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Lakeside Laboratory Comment
  JROH2375  Trifolium variegatum John H. Thomas 1956-4-7 5606 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH2388  Trifolium variegatum John Hunter Thomas 1985-4-11 23523 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC729682  Trifolium variegatum Carl B. Wolf 1929-4-24 3657 San Mateo sw end Jasser Ridge; back of Stanford University 152 Comment
  JROH2412  Trifolium willdenovii John Hunter Thomas 1988-4-7 24379 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2413  Trifolium willdenovii John Hunter Thomas 1988-5-3 24446 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM88144  Trifolium willdenovii L. R. Abrams 1902-4-13 2319 San Mateo San Andreas Lake. Comment
  UC74993  Trifolium willdenovii C. F. B. 1902-4-4 445 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC451907  Triglochin maritima Le Roy Abrams 1901-3-1 1145 San Mateo Cooley's Landing Comment
  JROH4724  Trillium chloropetalum John H. Thomas 1971-4-3 15747 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  RSA176413  Trillium chloropetalum var. chloropetalum John H. Thomas 1964-4-19 10330 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  POM290752  Trillium chloropetalum var. giganteum Lyman Benson 1929-3-2 989 San Mateo Hill above Lake Searsville. Comment
  CAS-BOT-BC521070  Trillium chloropetalum var. giganteum C. F. Leithold 1894-2-24 s.n. San Mateo Santa Cruz Peninsula: Woodside Hills Comment
  CAS-BOT-BC521072  Trillium chloropetalum var. giganteum Margaret A. Barry 1937-4-21 13 San Mateo Woods on Coal Mine Ridge Comment
  SEINET12044497  Trillium chloropetalum var. giganteum L. S. Rose 1937-1 37001 San Mateo Emerald Lake 198 Comment
  OBI9375  Triphysaria eriantha subsp. rosea Lewis S. Rose 1965-3-25 65010 San Mateo San Bruno Mts, N end 122 Comment
  CAS-BOT-BC238558  Triphysaria floribunda Alice Eastwood 1915-5-6 s.n. San Mateo Burlingame Comment
  CAS-BOT-BC238576  Triphysaria floribunda Roxana S. Ferris 1921-4-7 2134 San Mateo The Santa Cruz Mountain Peninsula. San Bruno Mt. 60 Comment
  UC1012338  Triphysaria floribunda F. W. Pennell and D. D. Keck 1940-5-15 25426 San Mateo Route 101, 4 mi w Burlingame 152 Comment
  UCR139346  Triphysaria floribunda David D. Keck 1932-5-6 1471 San Mateo San Francisco Bay Region, 1 mi south of San Mateo on Highway US 101 61 Comment
  JEPS3988  Triphysaria pusilla Dr. L. M. Newlon 1919-4-14 4 San Mateo Moss Beach 22 Comment
  JROH4131  Triphysaria pusilla John H. Thomas 1955-5-6 4997 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4141  Triphysaria pusilla John Hunter Thomas 1978-4-20 19092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4139  Triphysaria pusilla John H. Thomas 1974-4-13 17154 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of ridge Comment
  SEINET7097919  Triphysaria versicolor A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  CAS-BOT-BC526104  Triteleia ixioides subsp. ixioides Carl B. Wolf 1929-5-24 3724 San Mateo 1/4 mile north of base of La Honda Grade on road to Woodside 121 Comment
  UC1133973  Triteleia laxa W. W. Akey 1935-5-25 26 San Mateo near Bolsa Point; Santa Cruz quad 30 Comment
  CAS-BOT-BC526788  Triteleia laxa Ned Cahill 1974-4-29 174 San Mateo Serpentine fields bordered by chaparral near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  IRVC9055  Triteleia laxa P. W. Rundel 1963-6-11 1118 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  SEINET12044747  Triteleia laxa G. C. Kimber, Roush, L. 1918-1 s.n. San Mateo Jasper Ridge, Santa Cruz Mountain Peninsula 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-BC74057  Turritis glabra Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain. Below top of mountain near radio station. Comment
  UCR101543  Ulex europaeus Don Pendleton 1993-11-20 s.n. San Mateo San Francisco Bay Area, South San Francisco, south side of Hickey Blvd. between Junipero Serra Blvd. and the 280 Fwy, east of Mandarin Dr. and west of Longford Dr., at edge of Daly City, SW of Cypress Lawn Cemetery Comment
  POM177516  Umbellularia californica Harry A. Dutton 1900-2-18 s.n. San Mateo Woodside. Comment
  RSA132457  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  JROH1299  Urospermum picroides John Rawlings 2007-8-29 1041 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed at entry point from Dennis Martin site. 71 Comment
  CAS-BOT-BC403971  Urtica dioica subsp. gracilis Roxana S. Ferris 1920-4-26 1965 San Mateo Santa Cruz Mountain Peninsula. Near mouth of canyon of Pescadero Creek 243 Comment
  CAS-BOT-BC199174  Vaccinium cespitosum Robert F. Thorne; P. Everett 1963-6-9 32214 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain 335 Comment
  CAS-BOT-BC199180  Vaccinium cespitosum Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo West facing slope of Kamchatka Point Comment
  CAS-BOT-BC199347  Vaccinium ovatum David D. Keck 1933-5-11 2302 San Mateo Montara Summit, Montara Mountain Comment
  CAS-BOT-BC199357  Vaccinium ovatum Reed C. Rollins 1942-4-30 3003 San Mateo S.E. slope of San Bruno Hills, about 1 mile west of Brisbane Comment
  CAS-BOT-BC199363  Vaccinium ovatum W. R. Dudley 1898-3-5 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC199369  Vaccinium ovatum J. H. Thomas 1949-3-31 203 San Mateo King's [Kings] Mountain Road Comment
  POM222793  Vaccinium ovatum S. S. Berry 1909-3-13 s.n. San Mateo San Mateo Comment
  RSA681683  Vaccinium ovatum Annuschka Deb 1989-3-17 50 San Mateo Woodside. Comment
  CAS-BOT-BC199467  Vaccinium parvifolium A. D. E. Elmer 1903-5-1 4924 San Mateo Butano Creek Comment
  UC306548  Vaccinium parvifolium A. D. E. Elmer May 1903 4924 San Mateo Butano Creek Comment
  CAS-BOT-BC76141  Vancouveria planipetala J. H. Thomas 1954-4-15 3907 San Mateo About 1.5 mile southwest of Searsville Lake. 228 Comment
  CAS-BOT-BC76142  Vancouveria planipetala W. R. Dudley 1905-6-12 s.n. San Mateo Santa Cruz Mountain Peninsula. Road beyond Iverson's near Pescadero Creek. Comment
  UC1206448  Vancouveria planipetala W. R. Dudley 1895-6-6 San Mateo near Peters Creek (this side of Iverson's); Santa Cruz Peninsula, near Peters Creek Comment
  CAS-BOT-BC5096  Verbena prostrata L. R. Abrams 1914-6-2 5109 San Mateo unspecified Comment
  UC563965  Veronica americana Ira L. Wiggins 1935-8-24 8162 San Mateo entering bay at Moss Beach Moss Beach Comment
  CAS-BOT-BC157690  Veronica americana Peter Rubtzoff 1978-7-8 9231 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH5832  Veronica americana Ann Lambrecht, Teri Barry, Nona Chiariello, and Alice Cummings 2014-5-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek delta of Searsville Lake Comment
  CDA6415  Veronica persica Wm. Davis 1958-1-13 20 -58 San Mateo Half Moon Bay. 0 Comment
  JROH4155  Veronica persica Carol Zabel 2007-4-30 67 San Mateo Jasper Ridge Biological Preserve, Stanford University; caretaker's garden area and other areas around the caretaker's residence Comment
  UC2049896  Vicia americana subsp. americana H. W. Johansen 1958-5-18 22 San Mateo Coast Hwy 1, S of Pescadero Comment
  UC1084414  Vicia americana var. americana G. Thomas Robbins 1937-4-11 104 San Mateo near Redwood City Comment
  SJSU15431  Vicia benghalensis Toni Corelli 2010-5-4 624 a San Mateo Ano Nuevo State Park, Cascade Field, Cascade Creek Trail 25 Comment
  POM248720  Vicia benghalensis J. T. Howell 1938-6-4 13886 San Mateo Burlingame Comment
  SEINET2064196  Vicia nigricans subsp. gigantea C. W. Sharsmith 1947-4-13 6750 San Mateo Summit of seaward border of coastal bluff, Pescadero Beach, near Pescadero Point Comment
  CAS-BOT-BC157965  Vicia sativa Peter Rubtzoff 1976-6-30 8709 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon Comment
  CAS-BOT-BC173652  Vicia sativa Peter Rubtzoff 1976-5-22 8552 San Mateo Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, near marshy area NW of Fog Forest Comment
  UCD121405  Vinca major C. M. Rivera 1969-5-24 17 San Mateo ca. 1 1/2 miles south of State Highway 35 intersection with Skyline Blvd., Belmont. Comment
  RSA15353  Viola adunca Carl B. Wolf 1927-1-29 168 San Mateo Pebble Beach, coast south of Pescadero. Comment
  POM286591  Viola ocellata Lyman D. Benson 1931-2-28 2617 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  JEPS50440  Viola ocellata James G. Daly 1934-1 210 San Mateo Branch of La Honda Canyon; Santa Cruz Mountains Comment
  POM128419  Viola pedunculata L. R. Abrams 1902-4-13 2328 San Mateo San Andreas Lake. Comment
  HSC21838  Viola pedunculata L. S. Rose 1965-3-25 65009 San Mateo San Bruno Mtns., N end 122