Search Results — 2000 specimen records retrieved (1317 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UCSC004916  Abronia latifolia Monica Larenas 1985-6-1 20 San Mateo Hwy 1, 0.5 mi S of Pescadero State Beach Comment
  CAS-BOT-BC451124  Acaena pinnatifida var. californica John Thomas Howell 1926-4-24 1915 San Mateo Daly City Comment
  SD27820  Acaena pinnatifida var. californica Carl B. Wolf 1929-5-25 3732 San Mateo Pebble Beach, south of Pescadero Comment
  CAS-BOT-BC451122  Acaena pinnatifida var. californica W. R. Dudley 1901-5-11 s.n. San Mateo Near Millbrae; Santa Cruz Peninsula Comment
  CAS-BOT-BC451123  Acaena pinnatifida var. californica George Oberlander 1950-5-6 876 San Mateo Grassland about San Andreas Lake; San Francisco Watershed Reserve Comment
  CAS-BOT-BC451126  Acaena pinnatifida var. californica Elizabeth McClintock 1965-3-14 s.n. San Mateo South Power Line Ridge; San Bruno Mountains Comment
  RSA171123  Acaena pinnatifida var. californica Robert F. Thorne, Percy C. Everett 1963-6-9 32233 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower. 335 Comment
  JEPS81238  Acanthomintha duttonii Susan C. Sommers 1982-5-20 San Mateo Edgewood Park Comment
  SBBG33522  Acanthomintha duttonii A. D. E. Elmer -May-1903 4538 San Mateo Crystal Springs Lake Comment
  SEINET12276583  Acanthomintha ilicifolia L. S. Rose 1932-1 San Mateo Comment
  SD27833  Acanthomintha obovata Carl B. Wolf 1929-5-24 3723 San Mateo Open grassy hills above upper Emerald Lake back of Redwood City. Comment
  SD4349  Acanthomintha obovata Harry A. dutton, H. A. Walker May 26 & 29, 1915 3819 San Mateo Near the Menlo Golf Club. Found on a small area in sandy soil, on a hillside sloping to the south. Comment
  CAS-BOT-BC73  Acanthomintha obovata subsp. duttonii Harry A. Dutton 1900-4-17 s.n. San Mateo Woodside Comment
  POM118224  Acanthomintha obovata subsp. duttonii Harry A. Dutton, Miss H. A. Walker 1915-5-26 3819 San Mateo Near the Menlo Golf Club. Comment
  CAS-BOT-BC333208  Acer macrophyllum Elizabeth McClintock; Paul Reeberg 1988-4-6 s.n. San Mateo San Bruno Mountains. Above Margaret Ave., Brisbane Comment
  CAS-BOT-BC333211  Acer macrophyllum Ira L. Wiggins 1925-4-1 1687 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  JROH157  Acer macrophyllum John H. Thomas 1974-11-5 17664 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail below dam 114 Comment
  RSA116908  Acer macrophyllum W. R. Dudley 1906-6-14 s.n. San Mateo San Francisquito Creek, near Cedro Cottage Stanford University Comment
  RSA152264  Acer negundo subsp. californicum I. L. Wiggins 1925-4-11 1633 San Mateo Hillside across from Schroders, 1.5 miles above 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-BC337446  Acer negundo var. negundo J. H. Thomas 1954-4-21 3942 San Mateo San Francisquito Creek 0 Comment
  JROH172  Acer palmatum Carol Zabel and Ann Lambrecht 2002-4-24 46 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera creek floodplain north of Leonard's bridge about 25 feet 107 Comment
  CAS-BOT-BC21553  Achillea millefolium Walter Knight; Irja Knight 1965-4-25 1074 San Mateo San Bruno Mountain. Owl's Canyon. Comment
  CAS-BOT-BC21592  Achillea millefolium Margaret A. Barry 1937-4-21 21 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC21596  Achillea millefolium John H. Thomas 1967-5-2 12801 San Mateo San Bruno Mountain. About 1/4 mile up Market St. from new school in canyon. Comment
  CAS-BOT-BC28766  Achillea millefolium K. L. Chambers 1984-6-14 5139 San Mateo San Gregorio State Beach, Highway 1. 30 Comment
  CHSC25966  Achillea millefolium S. Villard 1974-4-28 6 San Mateo Found on King's Mt. Rd. at intersection with Jocellyn Lane in Woodside. 45 Comment
  JROH459  Achyrachaena mollis John H. Thomas 1963-5-12 10079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH464  Achyrachaena mollis John H. Thomas 1976-4-30 18101 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH466  Achyrachaena mollis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC29100  Achyrachaena mollis David D. Keck 1932-5-6 1484 San Mateo Hills just west of Millbrae Highlands 120 Comment
  JROH2059  Acmispon americanus var. americanus John H. Thomas 1974-10-26 17632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC2049889  Acmispon brachycarpus H. W. Johansen 1958-5-18 44 San Mateo Jones Gulch, 5 miles S of La Honda. Comment
  SEINET957844  Acmispon brachycarpus A. D. E. Elmer 1903-1 3698 San Mateo Leland Stanford universoty. Belmont. Comment
  JROH2081  Acmispon strigosus John Hunter Thomas 1983-4-21 21634 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2093  Acmispon wrangelianus John H. Thomas 1966-4-24 11578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC391679  Actaea rubra J. H. Thomas 1963-5-6 10062 San Mateo Summit of La Honda Road at Skyline Blvd. 609 Comment
  JROH3399  Actaea rubra Shaun Donovan 1972-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area along San Francisquito Creek Comment
  JROH3400  Actaea rubra Carol Zabel 1989-8-27 32 San Mateo Jasper Ridge Biological Preserve, Stanford University. From the "redwood circle" on Trail 1, go east 10-12 m. South side of trail just before a 1-m-high rock. Comment
  UC1537327  Actaea rubra Gordon H. True Jr. 1936-4-5 390 San Mateo canyon between San Gregorio and Pescadero 152 Comment
  RSA523414  Actaea rubra subsp. arguta G. H. True 1936-4-5 390 San Mateo Canyon between San Gregorio and Pescadero 152 Comment
  CAS-BOT-BC29294  Adenocaulon bicolor George Oberlander 1949-8-20 275 San Mateo Cahill Ridge Comment
  SEINET11914038  Adenostoma fasciculatum Unknown 1932-1 9187 San Mateo Los Fiancos woods Comment
  CAS-BOT-BC384616  Adiantum aleuticum J. Lovelle 1973-7-29 s.n. San Mateo Pescadero Creek Comment
  SD27376  Adiantum aleuticum Kate O. Sessions 1879-1 San Mateo La Honda Comment
  UCSB23606  Adiantum aleuticum Masero, Ann 1967-3-21 San Mateo Adjacent to Butano Creek in Butano Canyon, 3.1 mi E of junction of Cloverdale Road and Canyon Road 91 Comment
  JROH94  Adiantum jordanii John Hunter Thomas 1985-4-22 23549 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC1063727  Adiantum jordanii G. E. Sindel 1935-8-2 322 San Mateo head of <Harington> Creek; Santa Cruz Quadrangle Comment
  CAS-BOT-BC65673  Adiantum jordanii Elizabeth McClintock 1963-2-16 s.n. San Mateo San Bruno Mountain Comment
  UCSB18581  Adiantum jordanii Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 91 Comment
  CAS-BOT-BC202667  Aesculus californica Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC202668  Aesculus californica Phillip C. Wheeler 1965-5-12 s.n. San Mateo San Bruno Mountain. Canyon adjacent to Sierra Point Comment
  RSA131267  Aesculus californica Deborah Hichborn 1920-5-20 s.n. San Mateo San Francisquito Creek. Santa Cruz Mountain Peninsula. Comment
  SEINET12232132  Aesculus californica Unknown 1933-1 126 San Mateo Toward Woodside 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
  JROH480  Agoseris grandiflora var. grandiflora John H. Thomas 1967-6-1 12959 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC22978  Agoseris grandiflora var. grandiflora P. C. Wheeler 1966-4-24 s.n. San Mateo Buckeye Canyon Comment
  JROH487  Agoseris heterophylla Arthur Spiegler 1952-4-12 4 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  CAS-BOT-BC46172  Agoseris heterophylla W. R. Dudley 1906-5-13 s.n. San Mateo S.W. of San Mateo Comment
  CAS-BOT-BC15226  Agoseris hirsuta W. R. Dudley 1896-4-17 s.n. San Mateo Near Pebble Beach, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC15249  Agoseris hirsuta John Thomas Howell 1926-4-24 1925 San Mateo Daly City Comment
  CAS-BOT-BC15244  Agoseris hirsuta W. R. Dudley 1893-7-1 s.n. San Mateo Stanford Campus Comment
  SACT000119  Agrostis alba Malcolm Nobs, S. Smith 1949-8-25 San Mateo Marshes of Sharp Park Comment
  CAS-BOT-BC127481  Agrostis capillaris John Thomas Howell 1975-9-25 51509 San Mateo San Bruno Mountain. Comment
  JROH4780  Agrostis capillaris John Rawlings 2011-6-20 1072 San Mateo Jasper Ridge Biological Preserve, Stanford University. South side of Caretaker Residence. 105 Comment
  JROH4781  Agrostis exarata W. R. Dudley 1903-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  UC1537361  Agrostis exarata Gordon H. True Jr. 1937-10-16 849 San Mateo near Thornton Beach 15 Comment
  CAS-BOT-BC139460  Agrostis hallii Elizabeth McClintock; Paul Reeberg 1989-5-31 s.n. San Mateo San Bruno Mountains. In the East Saddle Area. 198 Comment
  JROH4793  Agrostis hallii John Rawlings 2011-6-12 1075 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 4 downhill edge. 174 Comment
  SJSU11264  Agrostis hallii S. H. Casey 1980-6-13 1156 San Mateo Los Trancos Woods Comment
  RSA119335  Agrostis microphylla S. S. Tillett, I. Sternback 1956-6-25 545 San Mateo On Middleton property S of road to Portola State Park, just before entrance; in secondary redwood forest. 396 Comment
  CAS-BOT-BC138952  Agrostis pallens Phillip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Quarry Road. 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
  JROH4808  Agrostis stolonifera John Rawlings 2009-7-23 1047 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry creek bed of San Francisquito Creek about 100 yards upstream from the entrance path to the creek nearest the Dennis Martin site. 71 Comment
  JROH4162  Ailanthus altissima John Hunter Thomas 1992-5-26 25353 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along SLAC corridor 82 Comment
  JROH4823  Aira caryophyllea John H. Thomas 1958-5-10 7153 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195578  Aira caryophyllea John H. Thomas 1966-4-22 11570 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. 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-BC138244  Aira caryophyllea var. caryophyllea John H. Thomas 1971-5-2 15833 San Mateo Near intersection of Canada Road and Edgewater Road about three miles westward from Redwood City. 152 Comment
  CAS-BOT-BC138245  Aira caryophyllea var. caryophyllea W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath Ranch Hills. Comment
  CAS-BOT-BC467292  Allium dichlamydeum Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon. Rocky soil-north facing slope 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
  CAS-BOT-BC467294  Allium dichlamydeum Philip C. Wheeler 1965-5-8 s.n. San Mateo Sierra Point Comment
  CAS-BOT-BC467296  Allium dichlamydeum Ned Cahill 1974-5-13 245 San Mateo Chaparral near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  JROH4549  Allium falcifolium John H. Thomas 1957-4-16 6662 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes. Comment
  JROH5786  Allium lacunosum var. lacunosum John Rawlings 2016-5-3 1775 San Mateo Jasper Ridge Biological Preserve, Stanford University; bare, rocky, sepentinite bordering small drainage west of Rd F in Area C. 170 Comment
  CAS-BOT-BC475496  Allium triquetrum P. C. Wheeler 1966-3-27 s.n. San Mateo Crocker Industrial Park, San Bruno Mountain Comment
  CAS-BOT-BC474301  Allium unifolium Philip C. Wheeler 1965-5-18 s.n. San Mateo Upper Colma Canyon near creek Comment
  JROH1325  Alnus rhombifolia John H. Thomas 1965-1-29 10550 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  CAS-BOT-BC169341  Alnus rubra John H. Thomas 1965-11-26 11456 San Mateo 2.5 miles up Tunitas Creek Road (as measured along the road) from the ocean 60 Comment
  CAS-BOT-BC169357  Alnus rubra W. R. Dudley 1902-12-31 s.n. San Mateo Along Gazos Creek Comment
  UC1108513  Alopecurus saccatus James McMurphy 1906-5-8 San Mateo pond near head of Crystal Springs Lakes Comment
  SJSU15844  Amaranthus californicus John Rawlings, Toni Corelli 2014-10-5 1268 San Mateo Santa Cruz mountains west of Skyline Blvd. USGS US Topo 7.5-minute map for La Honda; west of Windy Hill Open Space Preserve, Portola Valley 438 Comment
  CAS-BOT-BC44932  Ambrosia chamissonis John H. Thomas 1963-7-19 10187 San Mateo Ano Nuevo Island, about 1/2 miles off shore and above 20 miles NW of Santa Cruz Comment
  JEPS20296  Ambrosia chamissonis Lewis S. Rose 1956-8-13 56144 San Mateo Princeton 6 Comment
  SD40000  Ambrosia chamissonis Edith A. Purer 1932-7-18 4014 San Mateo Half Moon Bay on sand dunes Comment
  SD87531  Ambrosia chamissonis Frank W. Peirson 1925-9-13 6427 San Mateo Rockaway Beach, back of beach Comment
  JROH3597  Amelanchier utahensis Ruth Porter 1999-5-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; between lake and fire road E Comment
  JEPS13156  Ammannia coccinea V. F. Hesse 1955-10-10 1719 San Mateo 4 mi from Pescadero (near Butano road) Comment
  CHSC57108  Ammophila arenaria Steven Triano 1988-5-24 203 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  UCSC007716  Ammophila arenaria Becky Hendricks, Shayne Coppedge 2012-5-18 s.n. San Mateo Ano Nuevo State Park Comment
  RSA0089951  Amsinckia menziesii John H. Thomas 1966-4-29 11589 San Mateo Jasper Ridge Biological Experimental Area, 5 miles SW of Palo Alto. Comment
  POM286828  Anagallis arvensis Lyman Benson 1935-6-6 6671 San Mateo Menlo Park. 46 Comment
  UCD117546  Anagallis arvensis S. Seiki; Patricia Carter 1998-5-2 2 San Mateo city of Pacifica, Montara Mountain, approx. 2.4 miles from San Pedro Valley along Devil's Slide heading west. Comment
  JROH3370  Anagallis minima John H. Thomas 1961-4-29 9180 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3371  Anagallis minima John H. Thomas 1968-4-6 14280 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC45181  Anaphalis margaritacea John Hunter Thomas 1963-9-11 10265 San Mateo San Bruno Mountain, in northern part of country 396 Comment
  JEPS17915  Anaphalis margaritacea Rimo Bacigalupi 1955-8-4 5448 San Mateo at, just n of Montara Point Lighthouse Montara Comment
  UC1125509  Anaphalis margaritacea G. E. Sindel 1935-7-30 315 San Mateo 3/4 mi n of Pomponio Creek; Santa Cruz Quad. 259 Comment
  CAS-BOT-BC391917  Anemone grayi Le Roy Abrams 1902-3-16 2275 San Mateo King's Mountain Comment
  CAS-BOT-BC391921  Anemone grayi C. F. Baker 1902-3-18 323 San Mateo King's Mountain Comment
  POM151094  Anemone grayi C. F. Baker 1902-3-18 323 San Mateo King's Mountain. Comment
  CAS-BOT-BC391918  Anemone grayi Josephine D. Randall 1908-4-12 s.n. San Mateo Santa Cruz Peninsula. King's Mt. Comment
  RSA492532  Angelica hendersonii Lyman Benson 1937-6-27 8397 San Mateo Moss Beach Comment
  JROH192  Angelica tomentosa John Hunter Thomas 1989-6-17 24776 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC273180  Anisocarpus madioides David D. Keck 1932-5-11 1497 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtns. 230 Comment
  CAS-BOT-BC273190  Anisocarpus madioides John H. Thomas 1961-6-20 9555 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 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
  SEINET5539055  Antennaria luzuloides H. S. Gentry 1931-1 84 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UCD18541  Anthemis cotula Roman Gankin 1950-7-4 9 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  JROH5204  Anthoxanthum occidentale Volney Rattan 1867-3-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwoods, Searsville Comment
  JROH3609  Aphanes occidentalis John Hunter Thomas 1983-4-14 21405 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454488  Aphanes occidentalis George Oberlander 1950-3-11 448 San Mateo Grassland, Sweeney Ridge, San Francisco Watershed Reserve Comment
  POM132688  Apiastrum angustifolium A. D. E. Elmer 1903-06 4461 San Mateo Crystal Springs Lake. Comment
  UC306538  Apiastrum angustifolium A. D. E. Elmer June, 1903 4461 San Mateo southern end of Crystal Springs Lake Crystal Springs Lake Comment
  RSA195611  Aponogeton distachyos Peter H. Raven 1967-2-18 20829 San Mateo On east side of State Highway 5, 4.6 miles south of southern boundary of San Francisco. Comment
  POM87798  Aquilegia eximia Helen D. Geis 1901-07 s.n. San Mateo Crypstal Springs Comment
  JROH3401  Aquilegia formosa John Hunter Thomas 1985-4-22 23539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA87797  Aquilegia formosa var. truncata L. R. Abrams 1902-4-13 23463 San Mateo Crystal Spring. 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-BC17323  Arabis blepharophylla Javier Penalosa 1963-2-23 2654 San Mateo San Bruno Mountains. Ravine south of Crocker Avenue. 213 Comment
  HSC6552  Arabis blepharophylla Lincoln Constance, Rimo Bacigalupi, C. R. Bell 1951-3-25 3369 San Mateo SE side of Colma Canyon 61 Comment
  OBI15221  Arabis blepharophylla Lewis S. Rose 1961-4-5 61032 San Mateo San Bruno Mts 366 Comment
  POM132206  Arbutus menziesii A. D. E. Elmer 1903-05 4515 San Mateo Searsville Lake Comment
  UCSB18630  Arbutus menziesii Schulte, John 1963-4-9 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mounatins 152 Comment
  CAS-BOT-BC24163  Arctostaphylos John H. Thomas 1967-2-9 12403 San Mateo Montara Mountain in Northern part of county. Between Pacifica and Montara. Comment
  JROH1945  Arctostaphylos Carol Zabel, Ann, Lambrecht, Toni Corelli 2004-3-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on trail to Hermit's Mine site 191 Comment
  CAS-BOT-BC24170  Arctostaphylos andersonii W. R. Dudley 1905-6-12 s.n. San Mateo Trail below China Pt., Pescadero Creek. Comment
  CAS-BOT-BC23503  Arctostaphylos crustacea Roxana S. Ferris 1918-3-27 738 San Mateo La Honda Road Comment
  CAS-BOT-BC23505  Arctostaphylos crustacea W. R. Dudley 1894-3-23 s.n. San Mateo Road to La Honda Comment
  CAS-BOT-BC23510  Arctostaphylos crustacea Margaret A. Barry 1938-5-22 s.n. San Mateo Small patch on top of Coal Mine Ridge Comment
  CAS-BOT-BC23512  Arctostaphylos crustacea C. F. Baker 1902-3-18 327 San Mateo King's Mountain Comment
  CAS-BOT-BC23516  Arctostaphylos crustacea John Thomas Howell 1924-2-23 259 San Mateo King Mt. Comment
  CAS-BOT-BC23545  Arctostaphylos crustacea Mrs. S. G. Suttiffe 1933-4-5 s.n. San Mateo Las Lunitas Canyon, King Mt. Comment
  SBBG34020  Arctostaphylos crustacea subsp. crustacea L. S. Rose 1969-3-27 69006 San Mateo King's Mtn Rd, 4 mi W of Woodside. 304 Comment
  CAS-BOT-BC24733  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4416 San Mateo San Bruno Mtn. Up Buckeye Canyon on Oak Ridge. 91 Comment
  CAS-BOT-BC24735  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4421 San Mateo San Bruno Mtn. Buckeye Canyon on Oak Ridge. 103 Comment
  CAS-BOT-BC24490  Arctostaphylos imbricata William Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo Power Line Ridge, San bruno Mtn. Comment
  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
  CAS-BOT-BC24497  Arctostaphylos imbricata Peter H. Raven 1950-2-25 1383 San Mateo W. end of ridge behind NBC station, San Bruno Mtns. 457 Comment
  OBI14662  Arctostaphylos imbricata Lewis S. Rose 1961-3-2 61014 San Mateo San Bruno HIlls 366 Comment
  RSA70707  Arctostaphylos imbricata L. S. Rose 1951-3-13 51001 San Mateo San Bruno Hills. 304 Comment
  SBBG32379  Arctostaphylos imbricata L. S. Rose 1961-3-2 61014 San Mateo San Bruno Hills 365 Comment
  SBBG33914  Arctostaphylos imbricata L. S. Rose 1964-4-24 64022 San Mateo San Bruno Hills Comment
  UC1137193  Arctostaphylos imbricata G. Ward 1940-8-5 San Mateo San Bruno Mt. San Mateo Quadrangle Comment
  UCR58357  Arctostaphylos imbricata Walter Knight, I. Knight 1980-6-14 3747 San Mateo Original from San Bruno Mt. (grown at Tilden Botanic Garden, Berkeley) Comment
  CAS-BOT-BC38524  Arctostaphylos montaraensis Walter Knight; Irja Knight 1981-1-25 3933 San Mateo Collected from San Bruno Mt. Comment
  SEINET11988204  Arctostaphylos montaraensis W. Knight, Raiche, R. 1982-1 4415 San Mateo Mantara Mountain 305 Comment
  SEINET11989109  Arctostaphylos montaraensis Unknown 1966-1 740 B San Mateo Montara Mountain Comment
  SEINET11989203  Arctostaphylos montaraensis E. McClintock, Knight, W.; Knight, I. 1982-1 4643 San Mateo San Bruno Mountain 320 Comment
  CAS-BOT-BC39821  Arctostaphylos pacifica Arthur Menzies 1963-3-9 s.n. San Mateo San Bruno Hills - N.E. ridge from road at end of parking lot Comment
  CAS-BOT-BC44705  Arctostaphylos regismontana Lewis S. Rose 1932-1-16 3214 San Mateo Kings Mountain 640 Comment
  UC1120829  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 6 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 426 Comment
  UC1120848  Arctostaphylos regismontana A. E. Wieslander 1929-3-19 47 San Mateo Kings Mountain Rd Santa Cruz Quadrangle, Peters Creek (head of creek, near Plot 11) Comment
  UC83852  Arctostaphylos regismontana C. F. Baker 1902-1-15 271 San Mateo about summit; King's Mountain Comment
  CAS-BOT-BC44745  Arctostaphylos regismontana W. R. Dudley 1900-5-16 s.n. San Mateo On stage road from King's Mt. to Spanishstown Comment
  SEINET11989291  Arctostaphylos tomentosa S. W. Edwards 1982-1 s.n. San Mateo Foothill Park near summit of SW ridge Comment
  JEPS98865  Arctostaphylos tomentosa subsp. crustacea James B. Roof, Irja Knight 1964-9-14 San Mateo Montara Mountain, W summit Comment
  POM132204  Arctostaphylos tomentosa subsp. crustacea A. D. E. Elmer 1903-05 4558 San Mateo Kings Mountain. Comment
  RSA636839  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24649 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636846  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24642 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
  UC83011  Arctostaphylos tomentosa subsp. crustacea C. F. Baker 1902-3-18 328 San Mateo bay side of mt. King's Mountain Comment
  CAS-BOT-BC46832  Arctostaphylos uva-ursi Arthur Menzies 1963-3-10 s.n. San Mateo On ridge N.W. of first Television Tower. Comment
  CAS-BOT-BC46836  Arctostaphylos uva-ursi Walter Knight; Irja Knight 1965-2-28 864 San Mateo San Bruno Mt. Up Cable Ravine off Radis Road. Comment
  CAS-BOT-BC46837  Arctostaphylos uva-ursi Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mt. Few hundred yards up Cable Ravine Comment
  CAS-BOT-BC47153  Arctostaphylos uva-ursi Peter H. Raven 1951-3-12 2748 San Mateo summit ridge of the San Bruno Mts. Comment
  RSA0077992  Arctostaphylos uva-ursi B. A. Stein 1981-2-22 422 San Mateo San Bruno Mountain, just E of sumit. 396 Comment
  UCR58388  Arctostaphylos uva-ursi subsp. coactilis Walter Knight 1980-4-28 3735 San Mateo Original collected in 1963 by James Roof from Powerline Ridge, San Bruno Mt. (Tilden Botanic Garden, Berkeley) Comment
  SEINET11987329  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4202 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt Comment
  SEINET11989301  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I.; McClintock, E. 1982-1 4442 San Mateo Kamchatka Point, San Bruno Mt Comment
  JEPS26346  Armeria maritima subsp. californica Adele Lewis Grant 1917-5-6 940 San Mateo nr. Pescadero; Pebble Beach 3 Comment
  UC877854  Armeria maritima subsp. californica Alice Eastwood 1915-6-13 4712 San Mateo Granada Comment
  CAS-BOT-BC82515  Arnica discoidea Josephine D. Randall 1907-7-28 49 San Mateo [Iverson's] Iverson near Pescadero Creek Comment
  JROH4837  Arrhenatherum elatius Toni Corelli 2006-5-6 310 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road past Searsville Lake beach in disturbed grassy area, under large valley oak 106 Comment
  JROH515  Artemisia californica L. R. Abrams 1902-12-23 3098 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11836170  Artemisia californica L. S. Rose 1936-1 36716 San Mateo Granada 30 Comment
  SEINET11853229  Artemisia californica Unknown 1930-1 7303 San Mateo Menlo Park Golf Court Comment
  JEPS44413  Artemisia douglasiana Lewis S. Rose 1965-9-4 65101 San Mateo Skyline Blvd and Half Moon Bay Road Cahill Ridge, Skyline Blvd and Half Moon Bay Road 243 Comment
  CAS-BOT-BC93643  Artemisia pycnocephala Alice Eastwood 1914-10-1 s.n. San Mateo Mussel Rock Comment
  RSA249496  Aster chilensis John F. Emmel 1971-9-6 386 San Mateo Ravine 0.3 air miles southeast of 1314' summit, NE slope of San Bruno Mts. 320 Comment
  CAS-BOT-BC186756  Astragalus gambelianus George Oberlander 1950-4-22 786 San Mateo San Andreas Valley Comment
  CAS-BOT-BC186769  Astragalus gambelianus Lewis S. Rose 1956-7-2 56113 San Mateo Skyline Blvd., hills w. of San Mateo 182 Comment
  JROH1989  Astragalus gambelianus John H. Thomas 1967-5-10 12841 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC186752  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo Hills back of Redwood City Comment
  CAS-BOT-BC186755  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo Hills back of Redwood City Comment
  POM176056  Astragalus gambelianus Lyman Benson 1930-4-17 2084 San Mateo Stanford University. 152 Comment
  SD87780  Astragalus menziesii Frank W. Peirson 1925-9-13 6424 San Mateo Rockaway Beach, in detritus at the foot of cliffs at sea level Comment
  SFV1786  Astragalus nuttallii var. virgatus W. R. Russell 1966-8-17 s. n. San Mateo On side of hill at north end of Princeton Beach, about 2 miles south of Moss Beach. Comment
  CAS-BOT-BC193089  Astragalus pycnostachyus var. pycnostachyus J. W. Congdon 1897-8-11 s.n. San Mateo San Gregorio Comment
  POM143746  Athysanus pusillus C. F. Baker 1902-4-6 456 San Mateo Crystal Springs Lake. Comment
  UC219429  Atriplex californica H. M. Hall 1922-5-17 11805 San Mateo Point Montara Point Montara (in packed sand just above high tide) Comment
  POM263676  Atriplex leucophylla L. S. Rose 1941-9-27 41460 San Mateo Princeton. 1 Comment
  UC463562  Atriplex triangularis L. R. Abrams and I. L. Wiggins 1930-11-13 175 San Mateo Skyline Blvd. 1 mi sw Colma; sw of Colma Comment
  JROH4840  Avena barbata John H. Thomas 1967-5-12 12870 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4841  Avena barbata W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9. Comment
  CAS-BOT-BC145957  Avena fatua John Thomas Howell 1956-4-25 31293 San Mateo Skyline Boulevard just north of Crystal Springs Lake dam. Comment
  CAS-BOT-BC145958  Avena fatua J. H. Thomas 1955-4-15 4920 B San Mateo Along Bayshore Highway, east of San Carlos. Comment
  JROH2  Azolla John Hunter Thomas 1980-11-12 20167 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  RSA40259  Baccharis douglasii L. S. Rose 1946-7-14 46220 San Mateo Searsville Lake 69 Comment
  SEINET946129  Baccharis douglasii L. S. Rose 1946-1 46220 San Mateo Searsville Lake 69 Comment
  CAS-BOT-BC99534  Baccharis pilularis George Oberlander 1951-7-12 1211 San Mateo San Andreas Valley Comment
  CAS-BOT-BC99538  Baccharis pilularis C. F. B. 1902-10-1 1740 San Mateo Pillar Point Comment
  POM289736  Baccharis pilularis Lyman Benson 1934-12-15 6215 San Mateo Creek Hills; Santa Cruz Mt. Range; Corte Madera Creek Watershed 152 Comment
  RSA18342  Baccharis pilularis C. B. Wolf 1927-1-29 476 San Mateo Pebble Beach Comment
  RSA1947  Baccharis pilularis C. B. Wolf 1930-11-5 1063 San Mateo 4 mi. S of Pescadero. 8 Comment
  SD30701  Baccharis pilularis Edith A. Purer 1922-8-4 5409 San Mateo Clay hillside near Baden Station. Comment
  SEINET11861777  Baccharis pilularis Unknown 1929-10-17 7293 San Mateo Kings Mt Comment
  UCSC007721  Baccharis pilularis Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  SEINET3387422 Image available Baeria hirsutula Lewis S. Rose 1933-5-3 33141 San Mateo Montara, Ocean Bluffs Comment
  CAS-BOT-BC16630  Barbarea orthoceras John H. Thomas 1965-4-29 10617 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC166963  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7962 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH1448  Barbarea orthoceras John Hunter Thomas 1981-4-21 20462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC16637  Barbarea orthoceras Reed Clark Rollins 1941-3-29 2960 San Mateo 4 miles northwest of Palo Alto. Comment
  UCD97579  Bassia hyssopifolia Malcolm A. Nobs; S. Galen Smith 1949-8-27 1617 San Mateo E of Redwood City. Comment
  RSA152071  Bellardia trixago John H. Thomas 1961-5-5 9223 San Mateo Along Sandhill road about 3.5 miles westward from Stanford Univ. 91 Comment
  RSA159407  Bellardia trixago John H. Thomas 1961-5-14 9376 San Mateo Just north of dam on San Mateo Creek. 122 Comment
  SJSU783  Bellardia trixago M. Bogner 1943-4-24 San Mateo near Menlo Park Comment
  UCSB42899  Bellardia trixago deGrange, J. 1982-5-15 San Mateo Ten yards west of junction of Hallmark and Comstock Streets; Bellmont; Fifty yards east of Crystal Springs Reservoir 243 Comment
  CAS-BOT-BC100196  Bellis perennis Ray H. Yarris 1951-5-20 65 San Mateo Kings Mountain 91 Comment
  CAS-BOT-BC100192  Bellis perennis Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC100193  Bellis perennis Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC100194  Bellis perennis John H. Thomas 1974-5-7 17326 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school Comment
  CAS-BOT-BC100195  Bellis perennis George Oberlander 1950-5-6 864 San Mateo on South Cahill Ridge Comment
  CAS-BOT-BC75663  Berberis nervosa Paul Arnaud 1941-6-5 s.n. San Mateo Redwood City, Woodrow Street. Comment
  RSA254217  Berberis pinnata Robert A. Norris 1975-3-31 2294 San Mateo Near Guadalupe Parkway, Colma Canyon, San Bruno Mountans. Comment
  UC42859  Blechnum spicant F. P. McLean May 1873 San Mateo Pescadero Comment
  RSA130356  Boisduvalia densiflora Roxana S. Ferris 1930-9-3 2044 San Mateo Santa Cruz Mountain Peninsula: Upper Mud Lake. Coal Mine Ridge Comment
  UC140513  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo Pacific Coast, La Honda La Honda; Pacific Coast, La Honda Comment
  JROH4855  Brachypodium distachyon John Hunter Thomas 1988-6-2 24509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4861  Brachypodium distachyon John Hunter Thomas 1990-5-17 24859 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA36480  Brachypodium sylvaticum Ellen Gartside 2011-7-14 s.n. San Mateo Woodside; Old La Honda Rd. Comment
  CDA36481  Brachypodium sylvaticum Ellen Gartside 2011-7-28 s.n. San Mateo Woodside; Old La Honda Rd., on deer trail north of dirt road to Thornewood. Comment
  JROH5658  Brachypodium sylvaticum John Rawlings 2014-7-23 1267 San Mateo Jasper Ridge Biological Preserve, Stanford University; along downhill verge of Rd G between Rd C and the first small drainage crossing Rd G 108 Comment
  CDA37735  Brachypodium sylvaticum Breckenridge/Filippini 2010-7-22 s.n. San Mateo Woodside; across a number of properties. 0 Comment
  UCD170111  Brachypodium sylvaticum R. Breckenridge; K. Filippini 2010-11-22 s.n. San Mateo Found across a number of properties in Woodside. Comment
  CAS-BOT-BC30268  Brassica nigra R. Bacigalupi 1946-7-6 2794 San Mateo Near junction of Belmont-Las Pulgas roads, close to Crystal Springs Lake. Comment
  RSA0084271  Brassica nigra John H. Thomas 1963-8-4 10234 San Mateo About 2.5 miles inland from San Gregorio along the highway Comment
  RSA15631  Brassica oleracea C. B. Wolf 1927-6-15 1468 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  CAS-BOT-BC36794  Brassica rapa John H. Thomas 1965-4-29 10605 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC36799  Brassica rapa David D. Keck 1932-2-16 1377 San Mateo Portola. Comment
  JROH1470  Brassica rapa John Hunter Thomas 1989-5-23 24747 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old bridge over two parts of lake Comment
  CAS-BOT-BC145329  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. 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-BC145334  Briza minor J. H. Thomas 1949-6-4 571 San Mateo Along coast, 1.4 miles south of road to Pescadero. Comment
  CDA1781  Briza minor A. A. Beetle 1941-4-2 1738 San Mateo Near San Carlos Comment
  POM204993  Briza minor E. B. Copeland 1903-5-24 3257 San Mateo Along Crystal Springs Lake Comment
  SD227692  Briza minor G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3747 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  UCD57435  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  SEINET10514402  Briza minor Adolph D. E. Elmer Elmer 4912 San Mateo Crystal Springs Lake. Comment
  JROH4584  Brodiaea elegans subsp. elegans John Hunter Thomas 1982-6-7 21025 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC484348  Brodiaea elegans subsp. elegans Otto M. Sokol 1953-5-29 114 San Mateo Near Sharon Estates along Sand Hill Road Comment
  JROH4586  Brodiaea terrestris subsp. terrestris Elmer I. Applegate 1895-5-11 700 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC843571  Brodiaea terrestris subsp. terrestris Alice Eastwood 1912-6-10 334 San Mateo Crystal Springs Comment
  CAS-BOT-BC144137  Bromus John H. Thomas 1965-4-29 10619 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC144138  Bromus John H. Thomas 1962-4-24 9848 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  RSA185011  Bromus carinatus L. S. Rose 1963-4-27 63003 San Mateo Skyline Blvd, open hills west of San Mateo. 91 Comment
  CAS-BOT-BC148979  Bromus carinatus var. carinatus J. H. Thomas 1954-4-3 3837 San Mateo Pilarcitos Creek Road, 3.5 miles northeast of Halfmoon Bay. 121 Comment
  CAS-BOT-BC149020  Bromus carinatus var. carinatus R. E. Frenkel 1964-8-21 758 San Mateo On Portola Ridge Road, 0.7 mile north of Sawyer Ridge Road, SFWD. 320 Comment
  JROH4897  Bromus carinatus var. carinatus John Hunter Thomas 1988-5-16 24466 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH5798  Bromus carinatus var. carinatus John Rawlings 2016-4-19 1724 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. 106 Comment
  UC1537360  Bromus carinatus var. maritimus Gordon H. True Jr. 1937-4-3 621 San Mateo near coast of Salada Beach 15 Comment
  RSA320751  Bromus catharticus Robert A. Norris 1984-5-9 4730 San Mateo in open waste ground by Olivet Memorial Park Throughway, Colma. Comment
  UC1755115  Bromus catharticus Dean W. Taylor 1988-3-30 9492 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest; right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 176 Comment
  OBI22364  Bromus catharticus var. elatus Lewis S. Rose 1963-4-27 630025 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  POM236902  Bromus diandrus Lyman Benson 1930-5-1 2074 San Mateo San Lorenzo Mt. Range, Stanford University, Portola Road 152 Comment
  RSA254230  Bromus diandrus Robert A. Norris 1975-3-31 2286 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  UCD164419  Bromus diandrus Peter Rubtzoff 1977-6-21 9056 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  RSA790273  Bromus hordeaceus subsp. hordeaceus Peter Rubtzoff 1976-6-13 8634 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH4933  Bromus laevipes John H. Thomas 1967-5-12 12865 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5604  Bromus madritensis subsp. madritensis John Rawlings 2013-4-2 1148 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 11 ten meters west of the upper footbridge 129 Comment
  JROH4959  Bromus madritensis subsp. rubens John Rawlings 2013-5-7 1182 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road L near the Searsville School sign. 107 Comment
  SEINET10966609  Bromus marginatus Edwin B. Copel 1903-6-10 Copeland 3303 San Mateo Montana Point. Comment
  SEINET10520334  Bromus molliformis Delzie Demaree 1932-5-16 Demaree 9141 San Mateo Spring Valley Road. Comment
  SEINET3923660  Bromus mollis K. Harper 1984-4-25 84 -6 San Mateo Along crest of Jasper Ridge, Research Preserve, Stanford University.; 0 Comment
  RSA185010  Bromus stamineus L. S. Rose 1963-4-27 63002 San Mateo Skyline Blvd, open hills, west of San Mateo 91 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
  CAS-BOT-BC185394  Bromus vulgaris W. R. Dudley 1896-7-29 s.n. San Mateo Santa Cruz Mountain Peninsula. La Honda. Comment
  CAS-BOT-BC185396  Bromus vulgaris W. R. Dudley 1894-7-28 s.n. San Mateo Santa Cruz Mountain Peninsula. Between Pescadero and La Honda. Comment
  POM144330  Cakile edentula Copeland 1903-6-5 3319 San Mateo Montara Point. Comment
  UC964761  Cakile maritima Herbert L. Mason 1944-3-17 San Mateo Moss Beach Comment
  CAS-BOT-BC36960  Cakile maritima var. maritima W. R. Beutley 1957-5-11 81 San Mateo State Highway #1, 2 miles below Pescadero. 4 Comment
  CAS-BOT-BC185147  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5040 San Mateo San Pedro. Comment
  CAS-BOT-BC185148  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5040 San Mateo San Pedro. Comment
  POM199095  Calamagrostis nutkaensis A. D. E. Elmer 1903-05 5040 San Mateo San Pedro Comment
  RSA17938  Calamagrostis nutkaensis C. B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo Pescadero. Comment
  JEPS121454  Calandrinia ciliata Adam C. Schneider with C. Matt Guilliams 2013-2-2 190 San Mateo Crystal Springs Reservoir, between power transmission lines and Interstate 280. Comment
  JROH3326  Calandrinia ciliata John H. Thomas 1976-4-28 18097 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38112  Calandrinia ciliata Marie Cummings 1933-5-3 69 San Mateo Woodside Comment
  JEPS61617  Calochortus albus W. L. Jepson 1922-3-19 9533 San Mateo back of Millbrae; Buriburi Ridge Comment
  JROH4600  Calochortus albus John H. Thomas 1972-5-5 16083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4601  Calochortus albus John H. Thomas 1973-4-14 16572 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4613  Calochortus albus John Hunter Thomas 1991-4-25 25004 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD139448  Calochortus albus Adeline Fredericks 1920-4-1 s.n. San Mateo Lake San Andreas. Comment
  UCR121570  Calochortus albus George K. Helmkamp, E. A. Helmkamp 1999-6-28 5000 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC492202  Calochortus albus George Oberlander 1950-5-6 975 San Mateo Among Redwood, Cahill Ridge Comment
  CAS-BOT-BC492203  Calochortus albus W. R. Dudley 1894-4-21 s.n. San Mateo Side of hill near San Mateo ravine Comment
  CAS-BOT-BC492204  Calochortus albus Josephine D. Randall 1907-6-8 219 San Mateo Redwood Grove in Portola Valley Comment
  CAS-BOT-BC492206  Calochortus albus Margaret A. Barry 1937-5-15 135 San Mateo Steep south slopes and woods on Coal Mine Ridge Comment
  CAS-BOT-BC492222  Calochortus albus Dr. A. Kellogg; W. G. W. Harford 1861-6-10 991 San Mateo San - handwriting illegible Comment
  CAS-BOT-BC492225  Calochortus albus A. D. E. Elmer 1903-5-1 4846 San Mateo San Mateo Comment
  UC648400  Calochortus albus Marion Ownbey and Ruth P. Ownbey 1938-7-7 1698 San Mateo 3 mi w Woodside; Santa Cruz Mts. Comment
  JROH4625  Calochortus argillosus John Hunter Thomas 1977-6-7 18734 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD78194  Calochortus argillosus Robert E. Preston 2008-6-11 2641 b San Mateo Between Lower Crystal Springs Reservoir and Skyline Blvd, ca. 0.5 mi NW of jct Skyline Blvd and Crystal Springs Rd 99 Comment
  JROH4639  Calochortus luteus John Hunter Thomas 1982-6-7 21024 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA6293  Calochortus tolmiei D. D. Keck 1932-5-11 1496 San Mateo Above Woodside on La Honda Road, east slope of Santa Cruz Mountains Comment
  CAS-BOT-BC132539  Calochortus umbellatus M N. Paulson 1915-4-10 s.n. San Mateo Kings Mountain Comment
  SEINET12045035  Calochortus uniflorus D. D. Keck 1932-1 1496 San Mateo above Woodside on La Honda Rd. E slope of Santa Cruz Mts Comment
  SEINET12044558  Calochortus venustus L. S. Rose 1931-1 s.n. San Mateo Redwood City 610 Comment
  JROH561  Calycadenia multiglandulosa John H. Thomas 1967-11-5 14128 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH573  Calycadenia multiglandulosa John Hunter Thomas 1987-5-5 24252 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5811  Calycadenia multiglandulosa John Rawlings 2016-8-16 1940 San Mateo Jasper Ridge Biological Preserve, Stanford University; along birder transect path in rocky serpentine prairie on ridge-top (Area C) 174 Comment
  RSA296719  Calystegia purpurata Clark L. Miller 1978-6-15 1 -59 San Mateo Collected off old hwy. 1, approx. 4 miles south of Half Moon Bay. Comment
  CAS-BOT-BC224648  Calystegia purpurata subsp. purpurata J. H. Thomas 1949-6-4 595 San Mateo 1 mile E. of Pescadero Comment
  CAS-BOT-BC224651  Calystegia purpurata subsp. purpurata Lewis S. Rose 1950-5-20 50141 San Mateo Emerald Lake region, hills w. of Redwood City 243 Comment
  CDA34776  Calystegia purpurata subsp. purpurata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .173 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
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Oct 10 2021
  CAS-BOT-BC224647  Calystegia purpurata subsp. purpurata Mary Helen Kelson 1956-6-2 229 San Mateo Page Mill Road, 3 miles from Skyline Boulevard 213 Comment
  NY679557  Camissonia cheiranthifolia subsp. cheiranthifolia A. D. E. Elmer 03 1903 4942 San Mateo San Pedro. Comment
  POM187504  Camissonia cheiranthifolia subsp. cheiranthifolia E. A. Purer 1933-7-27 5388 San Mateo 2 miles south of Pigeon Point. Comment
  RSA449044  Camissonia ovata Glenn A. Gorelick 1967-4-20 s.n. San Mateo Overlooking Daly City, near San Francisco. Comment
  HSC16509  Camissonia ovata R. S. White 1965-4-19 42 San Mateo 4 mi. W of the Standford Golf Course on Sand Hill Rd. Comment
  RSA125833  Camissonia ovata G. R. Campbell 1956-4-4 3 San Mateo La Honda Rd (from Hwy 5) to Woodside, 3 mi from Mt Home-Portola road. 610 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
  UCSC007727  Camissoniopsis micrantha Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SEINET10905837  Campanula griffinii Thomas Thomas 22332 San Mateo Stanford University, about five miles sw of the downtown section of Palo Alto. Edge of chaparral Comment
  SEINET10463147  Campanula prenanthoides Leithold LEITHOLD s.n. San Mateo PESCADERO Comment
  JROH1471  Capsella bursa-pastoris John H. Thomas 1974-4-6 17094 San Mateo Jasper Ridge Biological Preserve, Stanford University; along path west side of dam Comment
  CAS-BOT-BC37163  Capsella bursa-pastoris George Oberlander 1949-5-13 169 San Mateo San Francisco Watershed. North boundary. Comment
  CAS-BOT-BC37692  Cardamine californica Everett O'Bannon; Nancy O'Bannon 1956-4-15 s.n. San Mateo Sawyer's Road, near Crystal Springs Lake above Burlingame and Millbrae. Comment
  HSC23887  Cardamine californica Mary Katherine Wicksten 1971-7-7 158 San Mateo Huddart Park, along road to family campground. Comment
  RSA15342  Cardamine californica var. integrifolia C. B. Wolf 1927-2-5 154 San Mateo Pilarcitos Lake Comment
  RSA159431  Cardamine californica var. integrifolia R. C. Rollins 1941-2-22 2937 San Mateo Santa Cruz Mts., about 8 miles NW of Palo Alto. 152 Comment
  SEINET12004998  Cardamine integrifolia G. A. McCallum 1933-1 s.n. San Mateo back of Stanford Campus Comment
  CAS-BOT-BC167120  Cardamine oligosperma Peter Rubtzoff 1977-4-14 8946 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  JROH1502  Cardamine oligosperma John Hunter Thomas 1989-4-20 24641 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164673  Cardamine oligosperma Peter Rubtzoff 1976-3-28 8451 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC384843  Cardionema ramosissimum Roxana S. Ferris 1921-4-7 2143 a San Mateo Santa Cruz Mountain Peninsula. San Bruno Mt. 91 Comment
  UC120252  Cardionema ramosissimum T. S. Brandegee Sept. 1901 San Mateo South San Francisco Comment
  CAS-BOT-BC384842  Cardionema ramosissimum Walter Knight; Irja Knight 1965-4-20 1082 San Mateo San Bruno Mountain. Pig Ranch Ravine 45 Comment
  CAS-BOT-BC384844  Cardionema ramosissimum Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. In old quarry in Colma Canyon Comment
  JROH579  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1980-5-8 19952 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC34076  Carex brevicaulis Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5250 San Mateo Tunitas. Comment
  CAS-BOT-BC34072  Carex brevicaulis John Thomas Howell 1965-3-29 41035 San Mateo West end of summit ridge of San Bruno Mountain. 396 Comment
  CAS-BOT-BC18922  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4328 San Mateo Visatacion Valley. Comment
  CAS-BOT-BC18926  Carex densa W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs. Comment
  CAS-BOT-BC18944  Carex densa Margaret A. Barry 1938-5-8 s.n. San Mateo On Coal Mine Ridge. Comment
  JROH4330  Carex densa John H. Thomas 1967-6-1 12984 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4331  Carex densa John Hunter Thomas 1977-6-16 18738 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA91590  Carex densa J. T. Howell 1938-5-1 13786 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC28411  Carex gracilior W. R. Dudley 1900-3-17 s.n. San Mateo A field N of Seal Cove Comment
  SJSU15225  Carex harfordii Toni Corelli 2012-6-28 801 San Mateo Pescadero State Beach, North Pond 3 Comment
  CAS-BOT-BC210005  Carex harfordii Peter Rubtzoff 1975-5-21 7968 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC173709  Carex obnupta Peter Rubtzoff; Roman Gankin 1975-5-21 7965 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC176410  Carex obnupta Peter Rubtzoff 1978-5-18 9173 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CHSC109977  Carex pendula John Rawlings 2011-7-3 San Mateo 200 m E of junction of Purisima Creek Trail and path to Judson Redwood Grove, about 0.5 air miles E of Higgins Canyon Road, Purisima Creek Redwoods Open Space Preserve, W slope of Santa Cruz Mountains, San Francisco Bay (SnFrB). 165 Comment
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Jan 26 2018
  RSA18462  Carex senta Carl B. Wolf 1927-6-29 546 San Mateo South of Pebble Beach near Pescadero Comment
  CAS-BOT-BC117647  Carex serratodens Harry A. Dutton 1900-4-3 s.n. San Mateo Woodside. Comment
  CAS-BOT-BC117648  Carex serratodens W. R. Dudley 1909-4-27 s.n. San Mateo Whipple Road between Woodside and Crystal Spr. Lake Comment
  CAS-BOT-BC117651  Carex serratodens Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside. Comment
  SEINET3100624  Carex serratodens Neal Kramer 2012-3-3 2031 a San Mateo Stulsart Park, Redwood City Comment
  SEINET7575205 Image available Carex serratodens Wilhelm Suksdorf 1913-6-22 248 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC539276  Carex subbracteata John Rawlings; Sara Timby; Toni Corelli 2016-4-23 1731 A San Mateo Along Bean HOllow bluff trail, W of Hwy 1, S of Pescadero 8 Comment
  CAS-BOT-BC210004  Carex subbracteata Peter Rubtzoff 1976-6-30 8707 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, westernmost part of the area. Comment
  SEINET7577065 Image available Carex subbracteata John Thomas Howell 1938-5-1 13778 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
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Oct 30 2021
  CAS-BOT-BC115508  Carex tumulicola Wilhelm Nikolaus Suksdorf 1928-7-5 12402 San Mateo Seeds from Crystal Springs Lake (grown in garden at Bingen, Wash) Comment
  CAS-BOT-BC230109  Carpobrotus chilensis Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano Nuevo Island Comment
  SEINET11942215  Carpobrotus chilensis M. T. Doutt 1931-1 179 San Mateo Ano Nuevo Pt Comment
  CDA19951  Carthamus lanatus A. King 2002-7-19 PDR P 120164 San Mateo San Francisco Bay Area; 1906 Pomponio Creek Rd. 0 Comment
  SEINET3522860 Image available Castanopsis chrysophylla Lewis S. Rose 1933-7-25 33308 San Mateo Kings Mountain, rocky slopes. Comment
  JEPS6875  Castilleja Rimo Bacigalupi with G. T. Robbins 1954-6-18 4549 San Mateo along Skyline Blvd, 1 1/2 mi N of the crossing of the page Mill (Alpine) road Comment
  CAS-BOT-BC249191  Castilleja affinis David D. Keck 1940-5-15 5036 San Mateo Upper Crystal Springs Lake, east side 100 Comment
  RSA187415  Castilleja affinis John H. Thomas 1950-3-19 1305 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
  POM298045  Castilleja affinis A. A. Heller 1907-4-20 8442 San Mateo Near Lake Merced. Comment
  RSA516625  Castilleja affinis R. C. Bacigalupi, J. R. Sweeney, G. Bacigalupi, Cliff Fenneman 1954-8-3 4733 San Mateo Heights above Thornton Beach close to State Highway No. 1. 55 Comment
  JEPS47425  Castilleja affinis subsp. affinis L. R. Heckard 1964-7-26 1423 San Mateo below old road from Skyline Blvd to Edgemar Comment
  JEPS86226  Castilleja affinis subsp. affinis L. R. Heckard 1970-5-5 2451 San Mateo n side San Bruno Mountain (n spur) 60 Comment
  JROH3945  Castilleja affinis subsp. affinis John Hunter Thomas 1978-4-20 19091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3946  Castilleja affinis subsp. affinis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3951  Castilleja affinis subsp. affinis John Hunter Thomas 1983-4-28 21780 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JEPS88800  Castilleja affinis subsp. affinis T. I. and F. M. Chuang 1991-7-3 7860 San Mateo 1.8 mi sw Interstate 280 junction with Route 92 (on Route 92) Comment
  JROH3964  Castilleja attenuata John H. Thomas 1978-5-16 s.n. 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
  UCR136714  Castilleja densiflora L. S. Rose 1948-5-16 48113 San Mateo San Francisco Bay Region, Emerald Lake, hills west of Redwood City 152 Comment
  JROH3973  Castilleja densiflora subsp. densiflora Robert Robertson 1954-4-23 93 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  UCSB18232  Castilleja densiflora subsp. densiflora Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 76 Comment
  JEPS18929  Castilleja exserta subsp. latifolia Rimo Bacigalupi with S. Galen Smith, G. T. Robbins and Lauramay Dempster 1956-5-15 5647 San Mateo about at the center of Montara Mountain Montara Mountain 487 Comment
  UC1063498  Castilleja exserta subsp. latifolia N. K. Carlson 1935-6-29 104 San Mateo 1 mi s Pescadero; Santa Cruz Quad. 91 Comment
  RSA218033  Castilleja franciscana Elizabeth McClintock, Phillip Wheeler 1967-5-14 s.n. San Mateo East side of mountain, above Harold Ave., Brisbane. Above Philip Wheeler's house. Comment
  JROH3989  Castilleja rubicundula subsp. lithospermoides L. R. Abrams 1934-4-18 13568 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH4001  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1978-5-12 19199 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS103884  Castilleja subinclusa T. I. Chuang and F. M. Chuang 1991-7-1 7850 San Mateo 0.8 miles N of San Gregorio Beach. Comment
  JEPS47427  Castilleja subinclusa subsp. franciscana L. R. Heckard 1964-7-26 1425 San Mateo 0.4 mi from Lobitos Creek rd. jct. rd. with Verde Road (old highway) (above Lobitos Creek valley) Comment
  JEPS47422  Castilleja subinclusa subsp. franciscana L. R. Heckard 1964-7-15 1420 San Mateo 0.4 mi above Tunitas Road junction with the Lobitos Creek cut-off road (along Tunitas Road, about 4.5 mi from State Hwy 1) 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
  JEPS34471  Castilleja wightii L. R. Heckard, and R. Bacigalupi 1963-7-2 1360 San Mateo nw slope Montara Peak (trail to Montara Peak, above old county road) 304 Comment
  JEPS47392  Castilleja wightii L. R. Heckard 1964-6-24 1401 San Mateo just s Lower Crystal Springs Reservoir dam (along Highway 35) 106 Comment
  JEPS47395  Castilleja wightii L. R. Heckard 1964-6-24 1397 San Mateo San Bruno Mt.; near television transmitting towers 304 Comment
  UC198269  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore Railway Comment
  UC648313  Castilleja wightii Blanche Clear 1938-5-22 San Mateo between Redwood and Belmont (Hiddne Valley); Hidden Valley Comment
  JEPS79097  Castilleja wightii L. R. Heckard 1980-5-3 5191 San Mateo s of Guadalupi Parkway, San Bruno Mt. (on slopes about Fern Rock, n part of San Bruno Mt., in upper end of drainage of Guadalupi Valley); San Bruno Mt., Guadalupi Valley, Fern Rock 182 Comment
  JEPS88823  Castilleja wightii T. I. and F. M. Chuang 1991-7-1 7846 San Mateo 1.1 mi n Montana Comment
  RSA296376  Castilleja wightii R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4557 San Mateo Road-bank just south of bridge across Arroyo de los Frijoles, along Calif. Highway No 1, 3.3 miles south of Pescadero. Comment
  SEINET8357659  Castilleja wightii A. D. E. Elmer 1903-1 4761 San Mateo San Pedro. Comment
  CAS-BOT-BC39378  Caulanthus lasiophyllus John H. Thomas 1961-5-7 9315 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC39389  Caulanthus lasiophyllus Ned Cahill 1974-4-29 170 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  JROH1523  Caulanthus lasiophyllus John H. Thomas 1963-3-20 10024 San Mateo Jasper Ridge Biological Preserve, Stanford University; near poppy knoll Comment
  CAS-BOT-BC39388  Caulanthus lasiophyllus W. R. Dudley 1894-4-24 s.n. San Mateo Santa Cruz Peninsula. San Mateo. Comment
  CAS-BOT-BC47934  Ceanothus Elizabeth McClintock 1974-11-13 s.n. San Mateo San Bruno Mountain Comment
  RSA15267  Ceanothus cuneatus Carl B. Wolf 1927-3-2 231 San Mateo Above Searsville Lake Comment
  JROH3523  Ceanothus cuneatus var. cuneatus John H. Thomas 1970-4-29 15614 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130826  Ceanothus oliganthus W. R. Dudley 1902-5-17 s.n. San Mateo King Mountain rd. Comment
  RSA34326  Ceanothus oliganthus var. sorediatus Paul R. Hichborn 1920-4-21 s.n. San Mateo Strawberry bend near Carte Madera Creek Comment
  UC1071332  Ceanothus oliganthus var. sorediatus C. R. Clar 1928-11-6 7 San Mateo Langley Hills Santa Cruz quad. 670 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
  UC774510  Ceanothus oliganthus var. sorediatus Carl B. Wolf 1941-7-31 11113 San Mateo 1 mi e summit La Honda Grade; Santa Cruz Mts., summit of La Honda Grade 396 Comment
  POM222807  Ceanothus oliganthus var. sorediatus S. S. Berry 1909-3-31 s.n. San Mateo Hill slope near the Hermit. 152 Comment
  CAS-BOT-BC51241  Ceanothus papillosus J. I. McMurphy 1906-5-20 13 San Mateo Santa Cruz Peninsula - King's Mt. Santa Cruz Mts. 457 Comment
  CAS-BOT-BC51851  Ceanothus papillosus W. R. Dudley 1902-5-17 s.n. San Mateo Kings Mountain Road Comment
  POM136268  Ceanothus papillosus var. roweanus Stewart H. Burnham 1894-4-29 1577 San Mateo Above woodside. Comment
  CAS-BOT-BC52275  Ceanothus thyrsiflorus Elizabeth McClintock 1963-6-9 s.n. San Mateo unspecified Comment
  CAS-BOT-BC52283  Ceanothus thyrsiflorus George Oberlander 1950-4-23 859 San Mateo on Sawyer Ridge Comment
  CAS-BOT-BC52304  Ceanothus thyrsiflorus A. D. E. Elmer 1903-6-1 4603 San Mateo Lake San Andreas Comment
  CAS-BOT-BC52309  Ceanothus thyrsiflorus Josephine D. Randall 1907-6-29 322 San Mateo Kings Mt. Comment
  CDA34570  Ceanothus thyrsiflorus M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 868 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  HSC23931  Ceanothus thyrsiflorus Mary Katherine Wicksten 1971-6-17 26 San Mateo Huddart Park, near parking are above Redwood Shelter Comment
  UC1071406  Ceanothus thyrsiflorus G. E. Sindel 1935-8-13 327 San Mateo San Gregoria Creek 91 Comment
  UCR104956  Ceanothus thyrsiflorus Tom Paradise 1993-5-3 12 San Mateo Woodside. Purisima Creek Redwoods Open Space Preserve. Skyline Boulevard at Tunitas Creek Road 631 Comment
  SEINET12209977  Ceanothus thyrsiflorus Unknown 1932-1 8972 San Mateo Comment
  SEINET12209978  Ceanothus thyrsiflorus J. I. McMurphy 1906-1 12 San Mateo Santa Cruz Mts 122 Comment
  SBBG64339  Ceanothus thyrsiflorus var. thyrsiflorus C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 1.4 mi E of Hwy 1 30 Comment
  JROH593  Centaurea calcitrapa John Hunter Thomas 1988-10-17 24602 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11860702  Centaurea calcitrapa E. A. Purer 1933-8-13 5423 San Mateo Santa Clara Valley, near Belmont Comment
  UCD130007  Centaurea calcitrapa P. B. Kennedy 1916-5-7 s.n. San Mateo vacants lots around Burlingame. Comment
  JROH599  Centaurea melitensis John H. Thomas 1963-6-23 10170 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of ridge Comment
  POM130628  Centaurium davyi E. B. Copeland 1903-5-24 3262 San Mateo Along Crystal Springs Lake Comment
  UC625427  Centaurium davyi L. R. Abrams and I. L. Wiggins 1939-6-3 423 San Mateo Ano Nuevo Point Comment
  POM296667  Centaurium davyi L. S. Rose 1941-6-19 41280 San Mateo Kings Mountain Road, three miles west of Woodside. 183 Comment
  UCSC005474  Centaurium muehlenbergii Randall Morgan 1998-7-28 3329 San Mateo N stretch of Stage Road off Hwy 1 Comment
  SJSU15233  Centromadia pungens subsp. pungens Toni Corelli 2013-8-16 455 San Mateo Ravenswood Open Space Preserve, east end of Bay Road, East Palo Alto 4 Comment
  UC1598488  Centromadia pungens subsp. pungens John Thomas Howell 1956-9-19 31877 San Mateo 2.3 mi s of Lake Merced; Skyline Blvd. Comment
  OBI16134  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Blurlingame, Trousdale Dr. & Calif dr. 9 Comment
  CAS-BOT-BC384958  Cerastium arvense W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Ravine north of Seal Cove Comment
  CAS-BOT-BC384957  Cerastium arvense David D. Keck 1932-3-27 1410 San Mateo Stanford University; near the quarry on Matadero Creek Comment
  POM319936  Cerastium arvense Barbara Shervanick 1973-4-1 788 San Mateo San Bruno Mt. at first summit at end of Crocker Rd.; Mt. Range: San Bruno Mts.; Drainage Area: San Francisco Bay. Comment
  JROH1690  Cerastium glomeratum John H. Thomas 1963-4-17 10036 C San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of road near the "riders shack" at the Searsville end of the ridge Comment
  JROH3631  Cercocarpus betuloides var. betuloides John Hunter Thomas 1989-5-30 24754 San Mateo Jasper Ridge Biological Preserve, Stanford University. Knoll to the west of the dam Comment
  JROH1950  Chamaesyce serpillifolia subsp. serpillifolia James McMurphy 1906-8-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  SEINET6901192  Chenopodium album Robert A. Evers, Clara V. Evers 1975-8-24 115025 -A San Mateo Trailer Villa, Redwood City. Comment
  UC1076471  Chenopodium multifidum Herbert L. Mason 1924-10-19 1115 San Mateo Colma Comment
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Apr 6 2009
  POM164765  Chenopodium murale C. F. Baker 1902-9-2 1549 San Mateo Crystal Springs Lake. Comment
  RSA137301  Chenopodium murale John H. Thomas 1949-10-16 1146 San Mateo Along sandstone bluffs, just north of outlet of San Gregorio Creek Comment
  JROH4653  Chlorogalum pomeridianum var. pomeridianum John Hunter Thomas 1983-7-20 22903 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0105084  Chlorogalum purpureum T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3519 San Mateo Central Coast: Pebble Beach State Beach Bay, 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
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Aug 30 2018
  CAS-BOT-BC246303  Chloropyron maritimum subsp. palustre J. W. Congdon 1881-5-24 s.n. San Mateo 14 mines south of San Francisco Comment
  CDA19922  Chondrilla juncea J. Beall 2002-6-26 PDR P 120157 San Mateo San Francisco Bay Area; Atherton Caltrain Station on Fair Oak Ln. 0 Comment
  CAS-BOT-BC191591  Chorizanthe cuspidata var. cuspidata Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon. San Bruno Mountain Comment
  NY285630  Chorizanthe cuspidata var. marginata A. D. E. Elmer 05 1903 4828 San Mateo San Pedro Comment
  RSA489244  Chorizanthe membranacea C. Rose Broome, Cristalyn M. Cagle 1978-6-17 2166 San Mateo Nacimiento - Ferguson Road 3 miles east of its junction with California Highway 1, and 4.1 miles west of Nacimiento Guard Station, Los Padres National Forest 427 Comment
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Oct 1 2021
  RSA130687  Chrysanthemum leucanthemum W. R. Dudley 1908-6-19 s.n. San Mateo Hills N of Jersey Farm Dairy. W of Baden Comment
  CAS-BOT-BC389694  Chrysolepis chrysophylla Mary K. Wicksten 1970-8-14 63 San Mateo Archery Trail, Huddart Prk. Comment
  RSA3093  Chrysolepis chrysophylla Carl B. Wolf 1931-8-21 2335 San Mateo 1/2 way up the east side of Kings Mt. 366 Comment
  JROH2587  Cicendia quadrangularis John H. Thomas 1974-4-4 17086 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH628  Cirsium brevistylum John H. Thomas 1961-6-7 9535 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA3890  Cirsium brevistylum I. L. Wiggins 1929-7-4 3787 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  CAS-BOT-BC100942  Cirsium fontinale var. fontinale J. W. Congdon 1901-7-27 s.n. San Mateo Spring Valley Comment
  CAS-BOT-BC100943  Cirsium fontinale var. fontinale John Thomas Howell 1939-6-16 14746 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC100944  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-6-1 4292 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC100946  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-6-1 4292 San Mateo Crystal Springs Lake Comment
  SJSU2901  Cirsium fontinale var. fontinale G. E. Pilz 1965-8-3 156 San Mateo E side Crystal Springs Reservoir in outer S Coast Ranges 121 Comment
  UC894974  Cirsium fontinale var. fontinale John Thomas Howell 1939-6-16 14743 San Mateo Crystal Springs Lake Crystal Springs Lake (along brooklet) Comment
  SEINET5506233  Cirsium fontinale var. fontinale Lewis S. Rose San Mateo Comment
  CAS-BOT-BC285669  Cirsium occidentale var. occidentale A. D. E. Elmer 1903-6-1 4259 San Mateo Crystal Springs Lake Comment
  JEPS59212  Cirsium occidentale var. occidentale J. Burtt Davy 1895-4-20 1084 San Mateo San Mateo Creek Comment
  CAS-BOT-BC280516  Cirsium quercetorum R. S. Ferris 1921-5-1 2184 San Mateo Arroyo de Los Frijoles Comment
  JEPS89476  Cirsium quercetorum Dean W. Taylor 1989-8-1 10416 San Mateo Montara State Beach along Highway 1 at junction with road to North Peak of Montara Mountain Montara State Beach; Santa Cruz Mountains, , Hwy 1 67 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-BC280513  Cirsium quercetorum Walter Knight; Irja Knight 1964-4-25 588 San Mateo San Bruno Mountain. Ridge near Nike base Comment
  CAS-BOT-BC280514  Cirsium quercetorum Javier Penalosa 1963-3-30 2703 San Mateo San Bruno Mountain. North of Randolph Ave. at Hillside Blvd. in SSF 91 Comment
  CAS-BOT-BC280515  Cirsium quercetorum Alice Eastwood 1922-5-28 11327 San Mateo Granada Comment
  CDA7143  Cirsium vulgare D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JROH641  Cirsium vulgare John Hunter Thomas 1983-7-7 22813 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  UC1211948  Cirsium vulgare Otto T. Solbrig 1958-8-3 2920 San Mateo near road Highway 5; Crystal Spring Lake 30 Comment
  CAS-BOT-BC285859  Cirsium vulgare Ira L. Wiggins 1977-7-23 22189 San Mateo Northerly side of San Francisquito Creek stream bed, ca 150 m upstream from Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC285862  Cirsium vulgare Otto T. Solbrig 1958-8-3 2920 San Mateo On Highway 5, Crystal Spring Lake 30 Comment
  CAS-BOT-BC285865  Cirsium vulgare Cherie Wetzel 1969-7-28 996 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC285866  Cirsium vulgare Ned Cahill 1974-10-8 380 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SBBG14780  Cirsium vulgare P. H. Raven 1961-8-24 16585 San Mateo E side of Crystal Springs Lakes Comment
  UC1536828  Clarkia amoena Gordon H. True Jr. 1936-6-14 509 San Mateo Skyline-Salada Beach Road 365 Comment
  SEINET4145648  Clarkia purpurea subsp. quadrivulnera A. A. Heller 1906-6-8 8382 San Mateo Near Ocean View, San Francisco Comment
  UC917332  Clarkia purpurea subsp. quadrivulnera W. A. Harvey and J. M. Tucker 1948-6-29 1710 San Mateo just w Highway 5 (Skyline Boulevard) (beside road to Portola State Park) Comment
  JROH3009  Clarkia purpurea subsp. viminea John H. Thomas 1967-5-31 12935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176537  Clarkia purpurea subsp. viminea John H. Thomas 1963-6-23 10164 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  CAS-BOT-BC165162  Clarkia rubicunda Alice Eastwood 1912-6-10 331 San Mateo Millbrae Comment
  CAS-BOT-BC165164  Clarkia rubicunda Peter H. Raven 1957-6-30 11014 San Mateo 1.8 miles east of Pescadero on road along Pescadero Creek Comment
  CAS-BOT-BC165165  Clarkia rubicunda Peter H. Raven 1957-6-24 10972 San Mateo North of the light house, Pigeon Point Comment
  CAS-BOT-BC165173  Clarkia rubicunda W. R. Dudley 1902-9-21 s.n. San Mateo Near Crystal Springs Reservoir Comment
  JEPS29416  Clarkia rubicunda L. R. Heckard 1961-7-16 1263 San Mateo ne transmitting station KQED (near summit of mountain); San Bruno Mt. 335 Comment
  JEPS43647  Clarkia rubicunda J. Burtt Davy 1893-6-17 767 San Mateo Belmont Comment
  UC112979  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  UC114009  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  UC1279894  Clarkia rubicunda Peter H. Raven 1957-6-20 10955 San Mateo hills above se end Lake San Andreas Comment
  UC1279941  Clarkia rubicunda Peter H. Raven 1957-6-24 10972 San Mateo n Light House (just above the beach); Pigeon Point Comment
  UC1279951  Clarkia rubicunda Peter H. Raven 1957-6-30 11012 San Mateo near bridge Tunitas Creek (along State Highway 1) Comment
  UC762860  Clarkia rubicunda R. F. Hoover 1941-5-20 5108 San Mateo Redwood City hills Comment
  UCR3564  Clarkia rubicunda Wm. Horn Jr. 1963-8-26 630826- 03 San Mateo 1.5 mi. east of Tunitas Beach, on Tunitas Creek Road 76 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-BC165159  Clarkia rubicunda Lewis S. Rose 1957-7-6 57117 San Mateo Skyline Blvd. w. of San Mateo 182 Comment
  CAS-BOT-BC165166  Clarkia rubicunda A. G. Vestal 1937-6-15 s.n. San Mateo About 1/4 mi north from site of former hotel Pebble Beach near Pescadero Comment
  CAS-BOT-BC165174  Clarkia rubicunda Peter H. Raven 1957-6-30 11017 San Mateo 3.0 miles from State Highway 5 (Skyline Boulevard) on road to Portola State Park Comment
  HSC23947  Clarkia rubicunda Mary Katherine Wicksten 1971-7-19 175 San Mateo Huddart Park Comment
  RSA18290  Clarkia rubicunda Carl B. Wolf 1927-6-21 427 San Mateo East slope of Kings Mt. Comment
  UC1279922  Clarkia rubicunda Peter H. Raven 1957-6-30 11011 San Mateo 1.8 mi s Sharp Park (on State Highway 1) Comment
  UCD104827  Clarkia rubicunda H. F. Copeland 1929-7-4 s.n. San Mateo La Honda Grade. Comment
  UCD104833  Clarkia rubicunda Peter H. Raven 1957-7-4 11046 San Mateo 6.1 miles from San Gregorio on road to La Honda, near San Gregorio Creek. Comment
  RSA73309  Clarkia rubicunda subsp. blasdalei F. W. Peirson 1925-9-13 6423 San Mateo Rockaway beach Comment
  RSA18442  Clarkia rubicunda subsp. blasdalei Carl B. Wolf 1927-6-29 566 San Mateo 3 miles south of San Gregorio. Comment
  CAS-BOT-BC439289  Claytonia exigua subsp. exigua L. R. Abrams 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Road from Woodside to Crystal Springs near junction of Redwood City Road. Comment
  UCSC007733  Claytonia parviflora Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH3353  Claytonia perfoliata subsp. perfoliata John Hunter Thomas 1988-4-6 24371 San Mateo Jasper Ridge Biological Preserve, Stanford University; road near dam Comment
  JROH3413  Clematis lasiantha John H. Thomas 1973-3-12 16490 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5687  Clematis lasiantha John Rawlings 2015-3-3 1311 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 9. 194 Comment
  CAS-BOT-BC499401  Clintonia andrewsiana W. R. Dudley 1989-6-8 s.n. San Mateo Road near Alpine School House, Black mt. Comment
  RSA377075  Clintonia andrewsiana D. D. Keck 1932-6-1 1797 San Mateo One mile west of Skyline Blvd on La Honda Road, Santa Cruz Mtns. Comment
  SEINET12044199  Clintonia andrewsiana L. S. Rose 1931-1 s.n. San Mateo La Honda Comment
  SEINET12044201  Clintonia andrewsiana L. S. Rose 1933-1 33254 San Mateo Kings Mt Comment
  JEPS47717  Collinsia heterophylla Phillip Wheeler 1965-6-7 San Mateo Buckeye Canyon; San Bruno Mtn Comment
Read comments
Mar 12 2009
  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-BC240932  Collinsia multicolor Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. In Devil's Arroyo Comment
  CAS-BOT-BC240935  Collinsia multicolor Reed C. Rollins 1942-4-30 3019 San Mateo San Bruno Hills, 1 mile south of Daly City Comment
  CAS-BOT-BC240936  Collinsia multicolor Miss E. Cannon No date on label s.n. San Mateo Hills near the Bay, South San Francisco Comment
  JEPS127810  Collinsia sparsiflora Adam C. Schneider with C. Matt Guilliams 2013-4-7 72 San Mateo Comment
  JROH5707  Collinsia sparsiflora var. collina John Rawlings 2015-3-15 1349 B San Mateo Jasper Ridge Biological Preserve, Stanford University 110 Comment
  RSA101013  Collomia heterophylla G. Oberlander 1950-4-23 816 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  RSA10271  Collomia heterophylla H. A. Barker 1927-5-6 696 San Mateo Summit of Kings Mts. Comment
  POM132669  Conium maculatum A. D. E. Elmer 1903-07 4957 San Mateo San Mateo Comment
  UC140526  Conium maculatum C. F. Baker 1902-12-1 196 San Mateo Pacific Coast, Summit of Coast Range Coast Range; Pacific Coast, Coast Range Comment
  JROH1849  Convolvulus arvensis John Hunter Thomas 1982-7-2 21056 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  CAS-BOT-BC286207  Conyza canadensis J. H. Thomas 1958-8-1 7374 San Mateo Just north of mouth of San Gregorio Creek 30 Comment
  CAS-BOT-BC286208  Conyza canadensis Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC286211  Conyza canadensis George Oberlander 1949-8-20 360 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CDA7456  Conyza sumatrensis J. T. Howell 1975-9-25 51508 San Mateo San Bruno Mountain. Comment
  RSA120502  Corallorhiza maculata S. S. Tillett, I. Sternback 1956-6-25 546 San Mateo Along ridge on border of Middleton property and Portola State Park, south side of road to park 396 Comment
  JEPS64360  Corallorhiza striata Inez Smith Mar. 1915 San Mateo Hillsboro Comment
  JROH4024  Cordylanthus pilosus subsp. pilosus John H. Thomas 1970-7-5 15660 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4025  Cordylanthus pilosus subsp. pilosus John H. Thomas 1970-7-5 15660 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA181266  Cordylanthus pilosus subsp. pilosus John H. Thomas 1958-8-1 7377 San Mateo Between Searsville and Skyline. Comment
  RSA412335  Cordylanthus pilosus subsp. pilosus E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel. Comment
  SEINET11859850  Corethrogyne californica Unknown 1932-5-8 9109 San Mateo above Spring Valley Lakes Comment
  CAS-BOT-BC101479  Corethrogyne filaginifolia Miss Eastwood 1896-6-1 s.n. San Mateo Spring Lake Comment
  LA205836  Corethrogyne filaginifolia D. Keck; 1932-5-25 1785 San Mateo E side of Crystal Springs Lake Comment
  UC87472  Corethrogyne filaginifolia Katharine Brandegee 1905-6-20 San Mateo near Lake Pilarcitos Comment
  POM39730  Corethrogyne filaginifolia var. californica Katherine Brandegee 1905-6-20 s.n. San Mateo Near Lake Pilarcitos Comment
  POM211526  Cornus glabrata C. B. Wolf 1931-8-20 2329 San Mateo 3 miles west of Mayfield on road to La Honda. 91 Comment
  RSA54182  Cornus glabrata C. B. Wolf 1931-8-20 3870 San Mateo 3 miles west of Mayfield on road to La Honda. 91 Comment
  CAS-BOT-BC210357  Cornus sericea Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  CAS-BOT-BC210358  Cornus sericea Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Base of Quarry 2 Comment
  CAS-BOT-BC210360  Cornus sericea Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  JROH1885  Cornus sericea subsp. sericea John Hunter Thomas 1992-7-24 25383 San Mateo Jasper Ridge Biological Preserve, Stanford University; causeway and boat ramp, along causeway Comment
  CDA18372  Cortaderia selloana G. D. Barbe 1978-9-26 2442 San Mateo Skylawn Memorial Park; drive from Hwy 92 into the park. 716 Comment
  CAS-BOT-BC180276  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1965-5-15 1110 San Mateo Upper Bitter Cherry Ravine. San Bruno Mountain Comment
  CAS-BOT-BC180371  Corylus cornuta subsp. californica Ira L. Wiggins 1929-3-23 3373 San Mateo Road to Mud Lake, near Stanford University Comment
  POM217105  Corylus cornuta var. californica D. D. Keck 1932-2-12 1362 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake. 305 Comment
  CAS-BOT-BC291468  Cotula coronopifolia John H. Thomas 1949-6-4 578 San Mateo Along coast, 1.4 miles S. of road to Pescadero Comment
  RSA18353  Cotula coronopifolia C. B. Wolf 1927-1-29 464 San Mateo Pebble Beach, coast south of Pescadero. Comment
  CAS-BOT-BC291467  Cotula coronopifolia John H. Thomas 1963-7-19 10193 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC291477  Cotula coronopifolia John Thomas Howell 1924-9-28 660 San Mateo Leslie Salt Rifinery, San Mateo Comment
  RSA706101  Cotula mexicana Don Pendleton 2002-4-8 s.n. San Mateo San Francisco Bay Region: Sharp Park Golf Course, Pacifica 15 Comment
  JEPS121548  Crassula connata Adam C. Schneider with C. Matt Guilliams 2013-3-9 26 San Mateo Crystal Springs Reservoir Comment
  JROH1838  Crocanthemum scoparium John H. Thomas 1977-5-4 18600 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4980  Crypsis schoenoides John Hunter Thomas 1980-11-12 20168 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta Comment
  JROH4981  Crypsis schoenoides John Hunter Thomas 1980-11-27 20193 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta Comment
  JROH1368  Cryptantha micromeres John Rawlings 2009-5-7 1069 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 in chaparral. 158 Comment
  JROH5593  Cryptantha micromeres John Rawlings 2013-4-19 1179 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Trail 11 in chaparral. 144 Comment
  JROH1371  Cryptantha microstachys Herbert Dengler 1960-5-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; firetrail on top of Nolan Ridge (the ridge N.E. of Corte Madera Cr. in chaparral -- about 200 yds W. of Westridge border) Comment
  CDA9446  Cryptantha torreyana D. G. Kelch 2002-5-13 s.n San Mateo Cahill Ridge. 0 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
  RSA130964  Cuscuta salina L. R. Abrams 1906-9-30 s.n. San Mateo Cooley's Landing Comment
  UC580080  Cuscuta salina var. major Ira L. Wiggins 1934-8-11 6970 San Mateo 1 mi n Redwood City (along Bayshore Highway) Comment
  CAS-BOT-BC287331  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  JROH5004  Cynodon dactylon John H. Thomas 1973-6-10 16819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA13334  Cynoglossum grande C. B. Wolf 1927-4-3 264 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  JROH5012  Cynosurus echinatus John Hunter Thomas 1990-5-29 24862 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near picnic area Comment
  JROH4379  Cyperus eragrostis John Hunter Thomas 1978-5-23 19224 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4390  Cyperus eragrostis John H. Thomas 1974-10-29 17647 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH4391  Cyperus erythrorhizos John H. Thomas 1974-10-29 17643 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH21  Cystopteris fragilis Lawrence J. Winship 1974-11-16 20 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC198211  Cytisus striatus Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo Base of Quarry, San Bruno Mountains Comment
  JROH5020  Dactylis glomerata John Hunter Thomas 1980-5-27 19990 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC192230  Danthonia californica A. G. Vestal 1924-5-20 s.n. San Mateo Sandhill Road (west of Menlo Park) Comment
  RSA580827  Danthonia californica var. americana D. D. Keck 1932-5-6 1479 San Mateo Open hillside just west of Millbrae Highlands. 50 Comment
  JROH232  Daucus pusillus John Hunter Thomas 1991-5-2 25020 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC935705  Deinandra corymbosa David D. Keck 1931-10-5 1295 San Mateo 1.5 mi s Half Moon Bay road (Skyline Boulevard, summit of Cahil Ridge); Cahil Ridge 450 Comment
  SEINET7838962 Image available Deinandra corymbosa D. D. Keck 1932-5-25 1784 San Mateo Hills two miles west of Belmont Comment
  UC222682  Deinandra corymbosa H. M. Hall 1915-8-28 10112 San Mateo north of San Bruno Comment
  CAS-BOT-BC299189  Deinandra corymbosa subsp. corymbosa A. D. E. Elmer 1903-7-1 4963 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC299202  Deinandra corymbosa subsp. corymbosa James I. McMurphy 1907-8-6 s.n. San Mateo Between Woodside and Crystal Springs Comment
  CAS-BOT-BC299223  Deinandra corymbosa subsp. corymbosa Alice Eastwood 1937-7-25 18895 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC299225  Deinandra corymbosa subsp. corymbosa H. M. Hall 1930-3-24 12786 San Mateo Near Pescadero 10 Comment
  CAS-BOT-BC299199  Deinandra corymbosa subsp. corymbosa L. R. Abrams 1902-9-21 3000 San Mateo Bill Road, Crystal Lake Comment
  CAS-BOT-BC299205  Deinandra corymbosa subsp. corymbosa W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  CAS-BOT-BC299206  Deinandra corymbosa subsp. corymbosa W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  CAS-BOT-BC299224  Deinandra corymbosa subsp. corymbosa H. M. Hall 1930-8-17 12881 San Mateo East side of Crystal Springs Lake Comment
  CAS-BOT-BC300004  Deinandra lobbii Josephine D. Randall 1907-11-3 s.n. San Mateo Los Trancos Road near Standford University, Santa Cruz Peninsula Comment
  CAS-BOT-BC300005  Deinandra lobbii Roxana Stinchfield 1915-10-14 258 San Mateo Above Basaltic Collumns near Standford University, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC389749  Delphinium M. Danielson 1967-4-30 s.n. San Mateo Old road above Crystal Springs Rd. on S.F. Watershed lands Comment
  CAS-BOT-BC9216  Delphinium californicum J. H. Thomas 1974-5-7 17322 San Mateo San Bruno Mountain, along Guadalupe Parkway opposite school, western side of mountain Comment
  RSA184849  Delphinium californicum L. S. Rose 1965-5-3 65058 San Mateo San Bruno Mountain, Colma Canyon. 61 Comment
  JROH3424  Delphinium californicum subsp. californicum Lyman Benson 1930-5-12 2127 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH3425  Delphinium californicum subsp. californicum Arthur Spiegler 1952-5-10 93 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9244  Delphinium decorum Walter Knight; Irja Knight 1965-4-4 1004 San Mateo Bitter Cherry Ravine near bottom of Colma Canyon Comment
  CAS-BOT-BC9245  Delphinium decorum W. R. Dudley 1900-3-17 s.n. San Mateo South side of summit of Montara Mountain Comment
  RSA15301  Delphinium decorum Carl B. Wolf 1927-4-3 271 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  UC9150  Delphinium decorum subsp. tracyi Ivar Tidestrom May 1894 San Mateo Comment
Read comments
Jun 4 2007
  RSA10347  Delphinium hesperium H. A. Barker 1926-5-5 578 San Mateo Near Searsville Lake Comment
  UC854136  Delphinium hesperium Alice Eastwood 1912-6-10 320 San Mateo Crystal Springs Comment
  CAS-BOT-BC10282  Delphinium hesperium Herbert L. Mason 1931-7-14 s.n. San Mateo Pescadero Creek, La Honda road Comment
  CAS-BOT-BC10286  Delphinium hesperium Harry A. Dutton 1900-4-29 s.n. San Mateo Unspecified Comment
  CAS-BOT-BC10287  Delphinium hesperium W. R. Dudley 1905-6-19 s.n. San Mateo Above Alpine School House, Black Mtn. Comment
  JROH3442  Delphinium hesperium subsp. hesperium John H. Thomas 1974-5-29 17396 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12086765  Delphinium nudicaule L. S. Rose 1931-1 s.n. San Mateo Kings Mt 914 Comment
  CAS-BOT-BC116530  Delphinium patens subsp. patens W. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  CAS-BOT-BC116527  Delphinium patens subsp. patens W. Dudley 1900-3-16 s.n. San Mateo By Redwood Stage road to Woodside Comment
  CAS-BOT-BC116528  Delphinium patens subsp. patens W. Dudley 1900-3-16 s.n. San Mateo Above Tripp's Store, Woodside Comment
  SBBG33499  Delphinium variegatum subsp. variegatum A. D. E. Elmer -May-1903 4796 San Mateo Crystal Springs Lake Comment
  POM176883  Dendromecon rigida Roxana S. Ferris 1920-4-26 1954 San Mateo Slopes above Peters Creek, Santa Cruz Mountain Peninsula 610 Comment
  HSC9615  Deschampsia cespitosa subsp. holciformis C. B. Wolf 1927-6-16 San Mateo W side of Spring Valley Lakes. Comment
  JROH5052  Deschampsia danthonioides John Hunter Thomas 1986-4-30 23983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA591518  Deschampsia danthonioides D. D. Keck 1932-4-29 1448 San Mateo Redwood City. Fields near the San Francisco Bay salt marshes Comment
  CDA28787  Deschampsia elongata D. G. Kelch 2009-6-9 9 .394 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
  JROH5058  Deschampsia elongata H. L. Mason 1921-5-13 s.n. 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
  UC38027  Deschampsia elongata Michener and Bioletti June, 1893 131 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC903  Dicentra chrysantha Rimo Bacigalupi 1926-4-30 1355 San Mateo Near summit of Mt. Diablo Comment
  CAS-BOT-BC909  Dicentra formosa subsp. formosa Charles Fuller Baker 1902-3-22 344 San Mateo Crystal Springs Lake 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-BC706  Dicentra formosa subsp. formosa Walter Knight; Irja Knight 1965-4-11 1024 San Mateo Guadalupe Road near big rock at Guadalupe Creek. Comment
  CAS-BOT-BC500893  Dichelostemma capitatum Fred Hemphill 1973-5-6 777 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC500894  Dichelostemma capitatum Fred Hemphill 1973-5-6 746 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC500892  Dichelostemma capitatum Walter & Irja Knight 1965-4-4 36 -7 San Mateo San Bruno Mountain, Bitter Cherry Ravine in chaparral Comment
  CAS-BOT-BC500896  Dichelostemma capitatum Mary Helen Kelson 1956-4-22 137 San Mateo Albert Way, Hillsborough, 1 mile from Skyline Blvd. Comment
  CAS-BOT-BC500900  Dichelostemma capitatum H. A. Dutton 1900-2-18 s.n. San Mateo Woodside Serpentine along N. slope Comment
  JEPS127848  Dichelostemma capitatum subsp. capitatum Adam C. Schneider 2013-4-7 86 San Mateo Comment
  SD39077  Dichelostemma capitatum subsp. capitatum Marie Cummings 1933-4-11 8 San Mateo Spring Valley Lake. Comment
  UCR156574  Dichelostemma capitatum subsp. capitatum P. W. Rundel 1962-4-15 1030 San Mateo San Francisco Bay Region, La Canada Rd., 1 mi N of Pulgas Water Temple [near Upper Crystal Springs Reservoir] 122 Comment
  UCSB17658  Dichelostemma capitatum subsp. capitatum 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
  CAS-BOT-BC502167  Dichelostemma congestum Fred Hemphill 1973-4-22 743 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC502168  Dichelostemma congestum Fred Hemphill 1973-4-22 693 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  JROH4662  Dichelostemma congestum John H. Thomas 1964-4-29 10333 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near Searsville end of ridge Comment
  JROH5076  Digitaria sanguinalis H. J. Dengler 1965-8-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In S.F. Creek bed, a few hundred yards below N. bend, at the Dennis Martin settlement site. 71 Comment
  SEINET13682892  Diplacus aurantiacus E. Crawford 1982-9-25 s.n. San Mateo On San Gregario Road, ca 2 miles W of Redwood Terrace. 73 Comment
  SEINET8415145  Diplacus aurantiacus LeRoy E. Detling 1932-8-17 1354 San Mateo San Gregorio. Comment
  JROH4199  Dirca occidentalis John H. Thomas 1960-5-1 8537 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
  JROH4200  Dirca occidentalis John H. Thomas 1967-3-13 12409 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4201  Dirca occidentalis John H. Thomas 1968-2-11 14144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA396845  Dirca occidentalis D. E. Breedlove 1964-2-7 5916 San Mateo In San Andreas Canyon below the dam Comment
  SBBG26820  Dirca occidentalis L. S. Rose 1939-4-12 39060 San Mateo Crystal Springs Lake 152 Comment
  UCD116838  Dirca occidentalis Lewis S. Rose 1964-3-9 64004 San Mateo N. end of Crystal Springs Lake. 121 Comment
  RSA244344  Disporum hookeri var. hookeri C. W. Tilforth, John Dourley 1973-7-19 933 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  UC3576  Disporum smithii J. Burtt Davy 1895-4-21 1057 San Mateo Pilarcitos Creek Comment
  SACT000992  Distichlis spicata var. stolonifera Malcolm Nobs, S. Smith 1949-8-26 San Mateo Collected in the marshes at mouth of creek. Comment
  CDA20072  Dittrichia graveolens D. Pendleton 2002-10-16 PDR 065871 San Mateo San Francisco Bay Area; Sandhill Rd & Lawler Ranch Rd, W of Hwy 280. 0 Comment
  UCD166150  Dodecatheon clevelandii subsp. sanctarum Jack Major; M. Forde and S. Bamberg 1962-4-3 734 San Mateo 10 miles south of Ano Nuevo Pt. above Scott Creek. (Exact location unknown. Coordinates estimated by label maker). 115 Comment
  SEINET5548367  Dodecatheon hendersonii H. S. Gentry 1931-1 10 San Mateo 1.5 miles W of San Mateo, Half-Moon Bay road. Comment
  UC877538  Dodecatheon hendersonii L. R. Abrams 1904-3-14 634 c San Mateo Menlo Heights Santa Cruz Mountain Peninsula, Menlo Heights Comment
  POM287492  Dodecatheon hendersonii subsp. cruciatum Lyman Benson 1931-2-28 2609 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  JROH1508  Draba verna John Hunter Thomas 1981-4-4 20256 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam in road Comment
  JROH1515  Draba verna John Hunter Thomas 1989-4-20 24641 San Mateo Jasper Ridge Biological Preserve, Stanford University; grassy area below dam Comment
  RSA112451  Drymocallis glandulosa H. A. Borthwick 1920-4-28 101 San Mateo Portola Valley Comment
  CAS-BOT-BC389714  Drymocallis glandulosa Sharon Rogers 1966-4-23 s.n. San Mateo Area in Crystal Springs watershed, between North and South Gates of Filoli Estate Comment
  RSA133097  Drymocallis glandulosa Donald A. Johansen 1933-5-18 705 San Mateo Hills above Searsville Lake along road from Portola to La Honda Comment
  CAS-BOT-BC159549  Drymocallis glandulosa var. glandulosa Hester Davis 1920-4-28 129 San Mateo Portola Valley - Santa Cruz Mountain Peninsula Comment
  RSA112450  Drymocallis glandulosa var. wrangelliana Josephine Randall 1907-7-7 340 San Mateo Kings Mtn. Comment
  UC1206461  Drymocallis glandulosa var. wrangelliana W. R. Dudley 1900-3-17 San Mateo grade up Montara Mt. by road Santa Cruz Peninsula, grade up Montara Mt. Comment
  JROH26  Dryopteris arguta John H. Thomas 1973-6-15 16840 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC1063782  Dryopteris arguta C. M. Belshaw 1935-1-25 1460 San Mateo 2.8 mi w Woodside; Santa Cruz Quadrangle 457 Comment
  UC766794  Dryopteris arguta R. F. Hoover 1941-2-12 4762 San Mateo nw of Summit Saratoga Comment
  CAS-BOT-BC67885  Dryopteris arguta L. R. Abrams 1901-12-29 2251 San Mateo Santa Cruz Mts. Comment
  IRVC3913  Dryopteris arguta P. W. Rundel 1963-6-11 1124 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  RSA693753  Dryopteris arguta C. B. Wolf 1928-3-14 1537 San Mateo La Honda grade in the Santa Cruz Mountains 152 Comment
  UC429788  Dryopteris arguta L. R. Abrams 1901-12-29 2251 San Mateo Santa Cruz Mts. Comment
  UCSB17937  Dryopteris arguta Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles SW of Stanford campus, between Santa Clara Valley and Santa Cruz Mtns. 137 Comment
  POM281632  Dryopteris expansa Lyman Benson 1930-5-26 2139 San Mateo Stanford University, Lake Searsville 152 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
  JEPS49939  Dudleya caespitosa W. L. Jepson 1910-8-18 4164 San Mateo Gazos Creek Pescadero Comment
  UCR130218  Dudleya caespitosa George K. Helmkamp, E. A. Helmkamp 1999-6-28 4995 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC428360  Dudleya farinosa C. F. Baker 1903-6-30 3440 San Mateo Pilarcitos Comment
  JROH5087  Echinochloa crus-galli John H. Thomas 1976-10-16 18416 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
  CDA5627  Echium pininana T. C. Fuller 1967-8-23 16296 San Mateo North side of road to Crystal Springs, 1.2 miles east of Highway 1 at Half Moon Bay. 0 Comment
  CDA20116  Ehrharta erecta K. Melo 2003-4-21 PDR 205211 San Mateo San Francisco Bay Area; Urban yard in Redwood City. 0 Comment
  UCD61216  Ehrharta erecta Glen L. Holstein 1978-3-1 s. n. San Mateo Near Pescadero Point. Comment
  CAS-BOT-BC112954  Eleocharis macrostachya George Thomas Oberlander 1950-7-15 1054 San Mateo Marsh, San Andreas Lake. Comment
  CAS-BOT-BC112955  Eleocharis macrostachya George Thomas Oberlander 1950-5-6 922 San Mateo Marsh, San Andreas Lake. Comment
  JROH4409  Eleocharis macrostachya John Hunter Thomas 1987-5-19 24301 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC112953  Eleocharis macrostachya W. R. Dudley 1908-6-19 s.n. San Mateo By pond S of Road from Tanforan to Jersey Farm Dairy. Comment
  CAS-BOT-BC113322  Eleocharis montevidensis Lewis Samuel Rose 1950-5-20 50146 San Mateo Emerald Lake region, hills of Redwood City 243 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
  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
  UCR132239  Elymus glaucus Beecher Crampton 1962-6-11 6497 San Mateo San Francisco Peninsula, northern city limits of Pacifica along Calif. Hwy 1, just southwest of its junction with Skyline Boulevard 61 Comment
  JROH5104  Elymus glaucus subsp. glaucus John H. Thomas 1971-5-30 15979 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5105  Elymus glaucus subsp. glaucus John H. Thomas 1973-6-15 16847 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5112  Elymus glaucus subsp. glaucus W. Lennihan 1989-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 10, on hill by trail. Comment
  SJSU15227  Elymus glaucus subsp. virescens Toni Corelli 2012-7-12 803 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay 24 Comment
  CAS-BOT-BC235201  Elymus multisetus Ned Cahill 1974-7-14 352 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH5118  Elymus multisetus John H. Thomas 1967-6-1 12949 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5120  Elymus multisetus D. E. Breedlove 1971-5-31 19389 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH5121  Elymus multisetus John H. Thomas 1973-6-10 16824 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
  UC124424  Epilobium canum subsp. canum C. F. Baker 1902-10-20 52 San Mateo summit of Coast Range Comment
  UCR123145  Epilobium ciliatum subsp. glandulosum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6796 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  JROH5606  Epipactis helleborine John Rawlings, Ann Lambrecht 2011-6-21 1212 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vicinity of an abandoned camper shell near a small drainage west of the switchback zone of the Escobar/Webb Ranch horse trail on north side of ridge. 100 Comment
  SJSU15420  Epipactis helleborine Toni Corelli 2011-8-31 713 San Mateo Pescadero State Beach and Marsh Natural Preserve. West Butano Loop about 0.5 mile southeast of Hwy. 1 off of Pescadero Road. 3 Comment
  UC205082  Equisetum A. D. E. Elmer May, 1903 4602 San Mateo Cemeteries, San Mateo Co. Comment
  CAS-BOT-BC57029  Equisetum arvense Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC57028  Equisetum arvense A. D. E. Elmer 1903-5-1 4602 San Mateo Cemeteries Comment
  JROH68  Equisetum telmateia subsp. braunii Lawrence J. Winship 1974-11-2 3 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  SJSU15447  Eragrostis curvula John Rawlings 2009-5-1 1048 A San Mateo This ornamental grass appeared along a short stretch of San Hill Rd. at the entrance to the Horse Park at Woodside. 119 Comment
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Feb 18 2015
  JROH5143  Eragrostis pectinacea var. pectinacea W. Lennihan 1980-11-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake (formed by Corte Madera Creek). Comment
  JROH3147  Eriastrum abramsii Richard L. Garber 1971-5-11 5 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU12768  Eriastrum abramsii Toni Corelli 1986-5-22 San Mateo Edgewood County Park near junction of Edgewood Rd & Hwy 280, Redwood City 219 Comment
  CAS-BOT-BC295089  Erigeron glaucus Elsie M. Zeile 1921-7-30 1058 San Mateo Salada Comment
  POM204314  Erigeron glaucus I. L. Wiggins 1929-7-4 3798 San Mateo Pescadero Beach Comment
  RSA175148  Erigeron glaucus R. F. Thorne 1963-6-9 32239 San Mateo Top of San Bruno Mountain 335 Comment
  CAS-BOT-BC300065  Erigeron philadelphicus Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. Colma Canyon and April Brook junction Comment
  CAS-BOT-BC300066  Erigeron philadelphicus Phillip C. Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. N. W. Radio Road Comment
  CAS-BOT-BC300246  Erigeron reductus var. angustatus John Thomas Howell 1930-11-9 s.n. San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC216127  Eriodictyon californicum A. D. E. Elmer 1903-4-1 4801 San Mateo Lake San Andreas Comment
  CAS-BOT-BC216128  Eriodictyon californicum Phillip Wheeler 1965-6-7 s.n. San Mateo Lower Owls Canyon, San Bruno Mountain Comment
  JROH2725  Eriodictyon californicum John H. Thomas 1974-5-29 17398 San Mateo Jasper Ridge Biological Preserve, Stanford University; riders' shack Comment
  JROH2726  Eriodictyon californicum John H. Thomas 1974-5-29 17398 San Mateo Jasper Ridge Biological Preserve, Stanford University; near riders' shack Comment
  POM222784  Eriodictyon californicum S. S. Berry 1909-4-23 s.n. San Mateo Road near Los Francos Creek 61 Comment
  UC24053  Eriodictyon californicum J. Burtt Davy Jun 21 1893-Jun 23 1893 1137 San Mateo Pilarcitos Lake and Canyon Comment
  JEPS127881  Eriogonum latifolium Adam C. Schneider with Alison Colwell 2013-6-23 294 San Mateo Pacifica State Beach, west of CA State Highway 1. Comment
  LA206931  Eriogonum latifolium Ira L. Wiggins; 1929-7-4 3797 San Mateo Pescadero Beach Comment
  POM145464  Eriogonum latifolium J. B. Feudge 1923-8-19 97 San Mateo Ano Nuevo Point 6 Comment
  SD214602  Eriogonum latifolium Edith A. Purer 1933-7-27 5379 San Mateo Sand dunes, two miles south of Pigeon Point Comment
  UC1032118  Eriogonum latifolium G. E. Sindel 1935-8-15 334 San Mateo 1/2 mi n Palomares; Sata Cruz Quadrangle Comment
  CAS-BOT-BC251970  Eriogonum latifolium Elizabeth McClintock 1972-5-10 s.n. San Mateo Rocky slope above Parking Lot at summit Comment
  CAS-BOT-BC251981  Eriogonum latifolium Elsie M. Zeile 1921-7-30 s.n. San Mateo Salada Beach (slopes nr. road) Comment
  CAS-BOT-BC252001  Eriogonum latifolium W. R. Dudley No date on label s.n. San Mateo Ocean View downs Comment
  CAS-BOT-BC266072  Eriogonum luteolum A. D. E. Elmer 1903-6-1 4309 San Mateo Belmont Comment
  CAS-BOT-BC266073  Eriogonum luteolum A. D. E. Elmer 1903-6-1 4309 San Mateo Belmont Comment
  CAS-BOT-BC266074  Eriogonum luteolum A. D. E. Elmer 1903-6-1 4309 San Mateo Belmont Comment
  JEPS83607  Eriogonum luteolum var. luteolum Roy E. Buck, Randall A. Morgan 1984-6-17 504 San Mateo 5.7 km sw Redwood City (in area bounded by Hwy. I-280, Edgewood Rd., and Canada Rd.) 152 Comment
  RSA51396  Eriogonum luteolum var. luteolum L. S. Rose 1949-8-14 49164 San Mateo Emerald Lake, hills west of Redwood City. Comment
  UC1206485  Eriogonum luteolum var. luteolum Le Roy Abrams 1902-9-21 2988 San Mateo Crystal Lake - Woodside Comment
  UC662513  Eriogonum luteolum var. luteolum L. S. Rose 1941-9-2 41432 San Mateo w Redwood City; Emerald Lake 90 Comment
  JEPS127777  Eriogonum nudum var. auriculatum Adam C. Schneider with C. Matt Guilliams 2013-3-9 30 San Mateo Comment
  UC54768  Eriogonum nudum var. auriculatum J. Burtt Davy Jun 21 1893-Jun 23 1893 1149 San Mateo Pilarcitos Lake and Canyon Comment
  CDA22626  Eriogonum nudum var. nudum T. C. Fuller 1967-6-13 15949 San Mateo Road to San Mateo, 0.7 mile east of Skyline Blvd., east above Crystal Springs Lake. 0 Comment
  CAS-BOT-BC304070  Eriophyllum confertiflorum Philip Wheeler 1965-5-12 s.n. San Mateo SW canyon below NBC towers, San Bruno Mt Comment
  CAS-BOT-BC304081  Eriophyllum confertiflorum Robert Robertson 1954-5-1 109 San Mateo 2 miles E of Pescadero 30 Comment
  UCSB55462  Eriophyllum confertiflorum Powell, Jerry 1972-3-10 San Mateo Mt. San Bruno Comment
  SEINET11850692  Eriophyllum confertiflorum Unknown 1932-1 9194 San Mateo no further locality Comment
  CAS-BOT-BC301263  Eriophyllum lanatum var. arachnoideum Josephine D. Randall 1907-6-29 68 San Mateo Santa Cruz Peninsula. Kings Mt. Road Comment
  CAS-BOT-BC301264  Eriophyllum lanatum var. arachnoideum A. D. E. Elmer 1903-6-1 4397 San Mateo San Mateo Comment
  CAS-BOT-BC301750  Eriophyllum latilobum S. Carlquist 1952-4-26 305 San Mateo On N. side of road to Half Moon Bay, 1 mi. e. of San Mateo Comment
  JEPS34470  Eriophyllum staechadifolium L. R. Heckard and Rimo Bacigalupi 1963-7-2 1359 San Mateo trail to (nw slope) Montara Peak (above old county road) 304 Comment
  UC896359  Eriophyllum staechadifolium Lewis S. Rose 1938-8-18 38233 San Mateo 3 mi s San Francisco County line; Skyline Blvd. 60 Comment
  RSA116763  Eriophyllum staechadifolium L. R. Abrams 1907-08 s.n. San Mateo Between Pescadero and Half Moon Bay Comment
  UC484306  Eriophyllum staechadifolium Carl B. Wolf 1930-11-5 1808 San Mateo 2 mi s San Gregorio (hills near the ocean); ocean Comment
  SEINET11850780  Eriophyllum staechadifolium var. artemisiaefolium E. A. Purer 1933-1 5395 San Mateo 2 mi S of Pigeon Point Comment
  SEINET11850785  Eriophyllum staechadifolium var. artemisiaefolium E. H. Graham 1931-1 6930 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  RSA391777  Erodium botrys D. D. Keck 1932-4-18 1432 San Mateo Mills Field Airport, San Francisco Bay. 2 Comment
  CAS-BOT-BC54818  Erysimum franciscanum H. E. Parks; S. T. Parks 1930-3-10 0401 San Mateo Spring Valley Lakes. Comment
  CAS-BOT-BC54823  Erysimum franciscanum A. D. E. Elmer 1903-5-1 4480 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC54841  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-6-4 914 San Mateo Above southeast shore of Crystal Springs Lake, soutwest base Pulgas Ridge. 91 Comment
  CAS-BOT-BC54851  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-3-28 905 a fl. 905b fr. San Mateo San Mateo Creek, below Crystal Springs Lake. 60 Comment
  JEPS53557  Erysimum franciscanum William S. Cooper 1925-5-28 16 San Mateo Salada Comment
  JEPS90459  Erysimum franciscanum Dean W. Taylor 1988-3-30 9484 San Mateo northern slope of s.e. ridge San Bruno Mt. (near ridgecrest, right-of-way of eastern-most set of PG&E high-voltage powerlines crossing the mt.); Santa Cruz Mts., San Francisco South 7 1/2' Quad. 237 Comment
  LA204415  Erysimum franciscanum H. E. Parks; S. T. Parks 1930-3-10 401 San Mateo Spring Valley Lakes Comment
  RSA101842A  Erysimum franciscanum G. B. Rossbach 1939-4-2 908 -a San Mateo Just above and west of South end of San andreas Lake 213 Comment
  RSA101842B  Erysimum franciscanum G. B. Rossbach 1939-4-2 908 -b San Mateo Just above and west of South end of San andreas Lake 213 Comment
  RSA102125  Erysimum franciscanum G. B. Rossbach 1955-3-26 577 San Mateo Near radio tower, crest of San Bruno Mountain 401 Comment
  UC1034710  Erysimum franciscanum G. B. Rossbach 1955-3-26 573 San Mateo innder dunes back of sea bluff about 1 mi n Sharp Park (Salada) Comment
  UC1034711  Erysimum franciscanum G. B. Rossbach 1955-3-12 568 San Mateo rocky seaward (but not outermost) slope just inland and ne Devil's Slide (w edge of mts); Montara Mountains Comment
  UC1560433  Erysimum franciscanum Craig P. Martz 1988-2-1 270 San Mateo top of knoll and on roadcut between State Route 92 and Upper Crystal Spring Reservoir n SR92/I280 interchange; San Mateo 7.5' USGS Quadrangle 114 Comment
  UC765069  Erysimum franciscanum R. F. Hoover 1941-4-23 4903 San Mateo rocky hill near Crystal Springs Dam Comment
  PGM187  Erysimum franciscanum Vern Yadon 1968-4-5 San Mateo Pigeon Pt Lighthouse Highway 1, Pigeon Pt Lighthouse just S of Comment
  CAS-BOT-BC403549  Eschscholzia californica John H. Thomas 1971-5-2 15812 San Mateo Near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  JEPS121487  Eschscholzia californica Adam C. Schneider with C. Matt Guilliams 2013-3-9 23 San Mateo Crystal Springs Reservoir Comment
  JEPS51734  Eschscholzia californica Dr. L. M. Newlon 1921-1 244 San Mateo sea shore from Salada to Mussel Comment
  POM272330  Eschscholzia californica subsp. californica Lyman Benson 1930-4-6 2045 San Mateo Moss Beach. 15 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
  CAS-BOT-BC202738  Euonymus occidentalis C. B. Wolf 1931-8-21 2333 San Mateo 1/2 mile above east base of La Honda Grade, Santa Cruz Mts. 243 Comment
  RSA100720  Euonymus occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  SEINET12131905  Euonymus occidentalis Unknown 1932-1 9164 San Mateo Canons San Madero Creek Comment
  UC1071566  Euonymus occidentalis var. occidentalis A. E. Wieslander 1925-9-25 1 San Mateo Santa Cruz Quad., Pescadero Creek Comment
  UC18052  Euonymus occidentalis var. occidentalis F. T. Bioletti 1893-6-22 San Mateo Pilarcitos Canyon Comment
  RSA130685  Euphorbia crenulata C. F. (illegible) 1894-3-28 s.n. San Mateo Lobitas road. Comment
  UCSC000450  Euphorbia crenulata H. S. Yates 1935-5-8 5211 San Mateo 1.5 mi. S. Mindego Hill Santa Cruz 335 Comment
  UCD142398  Euphorbia helioscopia J. H. Thomas 1959-7-8 8014 San Mateo About 1/4 mile west of center of Pescadero on road toward the coast. Comment
  CDA4815  Euphorbia helioscopia I. J. Campbell 1956-6-3 San Mateo Pescardo, Pedro Valley. 0 Comment
  JROH1965  Euphorbia lathyris Carol Zabel and Ruth Porter 1999-5-17 41 a San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of trail 12 Comment
  HSC103383  Euphorbia oblongata Don Pendleton 2001-4-30 64453 San Mateo Along Sandhill Rd., next to Jasper Ridge Biological Reserve, on the north side of Portola Road, Portola Valley. Comment
  JROH1951  Euphorbia serpillifolia subsp. serpillifolia John H. Thomas 1959-8-22 8083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC310620  Eurybia radulina A. D. E. Elmer 1903-7-1 4973 San Mateo Portola Comment
  JROH5175  Festuca arundinacea John Rawlings 2013-4-30 1171 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 east of trail 3 intersection in grassy opening. 81 Comment
  JROH5176  Festuca californica John H. Thomas 1967-5-12 12866 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278347  Festuca californica subsp. californica Walter Knight; Irja Knight 1965-4-25 s.n. San Mateo San Bruno Mountain. Owl's Canyon Comment
  CAS-BOT-BC278348  Festuca californica subsp. californica James McMurphy 1906-5-20 s.n. San Mateo Road to Kings Mt. Comment
  CAS-BOT-BC278351  Festuca californica subsp. californica L. R. A. 1902-5-11 2461 San Mateo Crystal Springs Comment
  UCR279848  Festuca dertonensis Peter Rubtzoff 1977-6-7 9031 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
  UC1106220  Festuca elmeri Peter H. Raven 1950-6-3 2252 San Mateo woods around San Andreas Lake San Andreas Lake Comment
  JROH5482  Festuca microstachys John H. Thomas 1964-4-5 10296 San Mateo Jasper Ridge Biological Preserve, Stanford University. Toward Searsville end of ridge. 152 Comment
  JROH5488  Festuca microstachys Dengler 1963-5-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5769  Festuca microstachys Herb Dengler 1957-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of dome. Comment
  JROH5496  Festuca myuros John H. Thomas 1967-5-12 12890 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5822  Festuca myuros John Rawlings 2016-3-8 1681 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14 uphill from dam spillway 108 Comment
  UCSB18778  Festuca myuros Schulte, John 1963-4-28 San Mateo Jasper Ridge; 3 miles SW of Stanford Campus; between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
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Oct 17 2011
  JROH5495  Festuca myuros John H. Thomas 1967-5-12 12867 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5287  Festuca perennis John Hunter Thomas 1986-5-1 23992 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low flow crossing. Comment
  CAS-BOT-BC279051  Festuca rubra Dean Wm. Taylor 1988-4-8 9508 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 PGandE high-voltage powerlines crossing the mountain 237 Comment
  POM87792  Fragaria californica L. R. Abrams 1902-5-20 2469 San Mateo Kings Mountain Comment
  RSA499458  Fragaria chiloensis E. A. Purer 1933-7-27 5386 San Mateo Two miles south of Pigeon Point. Comment
  SD39962  Fragaria chiloensis Edith A. Purer 1933-7-27 5386 San Mateo sand dunes, two miles south of Pigeon Point Comment
  CAS-BOT-BC437037  Fragaria chiloensis Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point about 1 mile north of Pigeon Point and about 39 miles south of San Francisco Comment
  CAS-BOT-BC437041  Fragaria chiloensis Barrett Anderson; Peter Rubtzoff 1988-4-22 3659 San Mateo Saddle area north of Guadalupe Canyon Parkway, San Bruno Mountain 275 Comment
  CAS-BOT-BC389686  Fragaria vesca subsp. californica Jeanie Nieri 1953-2-14 75 San Mateo Hillside 6 miles west of Belmont Comment
  CAS-BOT-BC457512  Fragaria vesca subsp. californica Ira L. Wiggins 1928-4-14 2913 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC457513  Fragaria vesca subsp. californica W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs, Santa Cruz Pennisula Comment
  CAS-BOT-BC457514  Fragaria vesca subsp. californica Josephine D. Randall 1907-6-8 33 / San Mateo Portola Valley, Santa Cruz Pennisula, Comment
  CAS-BOT-BC457516  Fragaria vesca subsp. californica W. R. Dudley 1901-3-23 s.n. San Mateo Coal Mine Canyon, Santa Cruz Pennisula Comment
  JEPS127868  Frangula californica subsp. californica Adam C. Schneider 2013-5-17 162 San Mateo Crystal Springs Reservoir Comment
  JROH3537  Frangula californica subsp. californica John H. Thomas 1968-5-22 14459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3540  Frangula californica subsp. californica John H. Thomas 1973-5-5 16770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3541  Frangula californica subsp. californica John H. Thomas 1974-8-11 17509 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
  JROH3578  Frangula californica subsp. tomentella John H. Thomas 1973-5-5 16770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC18511  Frangula purshiana J. Burtt Davy 1895-4-21 1064 San Mateo Pilarcitos Creek Comment
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Jul 18 2008
  CAS-BOT-BC212964  Fremontodendron californicum W. R. Dudley 1897-12-29 s.n. San Mateo Butano Creek, Santa Cruz Peninsula Comment
  CAS-BOT-BC130124  Fritillaria affinis Phillip C. Wheeler 1965-6-21 s.n. San Mateo Sierra Point Comment
  CAS-BOT-BC130139  Fritillaria affinis J. H. Thomas 1949-4-14 268 San Mateo [King's] Kings Mt. Road Comment
  JEPS55687  Fritillaria affinis W. Roderick 1962-2-10 San Mateo Mount San Bruno 3 Comment
  CAS-BOT-BC130123  Fritillaria affinis D. D. Davis 1903-5-2 s.n. San Mateo Near La Honda Comment
  POM196512  Fritillaria affinis Lucile Roush 1917-3-31 s.n. San Mateo Santa Cruz Mountain peninsula; Sierra Morena Comment
  POM273485  Fritillaria affinis Lyman Benson 1930-4-27 2099 San Mateo Stanford University 122 Comment
  RSA794663  Fritillaria affinis Lyman Benson 1930-4-27 2099 San Mateo Stanford University, Corte Madera Creek drainage area Comment
  JEPS4952 Image available Fritillaria biflora var. ineziana Inez Smith 1914-3-12 San Mateo Hillsboro; ; Hillsboro, San Mateo Co. Comment
  SEINET1783225  Fritillaria biflora var. ineziana Inez Smith 1914-3-12 s. n. San Mateo Hillsboro. Comment
  CAS-BOT-BC130378  Fritillaria liliacea Volney Rattan 1880-1-1 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC130377  Fritillaria liliacea Gladys L. Smith; Marion Gallagher 1978-5-1 4805 San Mateo Spring Valley Watershed along Old Skyline, exactly opposite statue of Father Serra on 280 Comment
  UC1442617  Fritillaria liliacea Theodore F. Niehaus 1978-3-9 78945 San Mateo 0.2 mi nw of Polhemus Road (on Tower Road to San Mateo County Juvenile jail) Comment
  CAS-BOT-BC290702  Fumaria Peter Rubtzoff; B. Anderson 1988-4-12 9900 San Mateo San Bruno Mountain. Saddle area on north side of Guadelupe Canyon Parkway west of Radio Road junction; NW part of the area, near the old Guadalupe Road between Bog Trail and Saddle Trail Junctions. Comment
  CAS-BOT-BC422462  Fumaria officinalis Elizabeth McClintock 1972-3-26 s.n. San Mateo San Bruno Mountain. Brisbane. Comment
  CAS-BOT-BC389682  Galium Mary Wicksten 1968-6-20 s.n. San Mateo Mr. [Mt.] Ellen trail - Memorial Park Comment
  POM284029  Galium californicum subsp. californicum Delzie Demaree 1933-6-23 10379 San Mateo White House Creek. Comment
  JROH5738  Galium murale John Rawlings 2015-4-5 1658 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  JROH3789  Galium murale John H. Thomas 1963-4-13 10032 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville end of lake near the riders shack. Comment
  UC1143094  Galium porrigens var. porrigens H. S. Yates 1935-2-3 509 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quadrangle Comment
  UC496159  Galium porrigens var. porrigens W. F. Wight 1900-1-28 San Mateo trail to Bukhorn Ranch above Prestons (old La Honda Rd.) Comment
  JEPS83562  Galium trifidum var. pacificum Dean W. Taylor 1987-8-20 9310 San Mateo between Whitehorse Creek and Cascade Creek (about spring/seep); Santa Cruz Mts., Cascade Ranch state park area 76 Comment
  CAS-BOT-BC303467  Gamochaeta ustulata John Thomas Howell 1926-4-24 1921 San Mateo Daly City Comment
  JROH801  Gamochaeta ustulata John Hunter Thomas 1986-5-6 24004 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC303468  Gamochaeta ustulata Paul F. Covel 1936-4-24 272 San Mateo Skyline Blvd Comment
  SEINET4041731  Garrya elliptica D. Demaree 1930-1 7312 San Mateo Los Trancos Woods. Comment
  UCD121102  Garrya elliptica R. E. Dengler 1960-4-10 9 San Mateo Jasper Ridge, Stanford Biological Reserve. 160 Comment
  UCD66730  Gastridium phleoides Malcolm A. Nobs; S. Galen Smith 1949-8-26 1610 San Mateo About 1 mile south of Pigeon Point. Comment
  CAS-BOT-BC526238  Gazania Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo San Bruno Mountains; near Picnic Area Comment
  CAS-BOT-BC219141  Genista monspessulana T. C. Fuller 1960-4-20 4086 San Mateo roadside, Page Mill Road, 0.5 mi above (SW) Moody Road, Los Altos Hills Comment
  SD227830  Geranium carolinianum G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3738 San Mateo Portola Valley: Golden Hills Rd. along Los Trancos Creek. 106 Comment
  RSA0028487  Geranium dissectum D. D. Keck 1932-5-6 1475 San Mateo Millbrae Highlands Comment
  JROH2627  Geranium molle John H. Thomas 1975-4-18 17782 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3167  Gilia clivorum John Hunter Thomas 1991-4-11 24980 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  SEINET8687951 Image available Glebionis segetum K. Thorne, J. Chandler 1986-7-25 4941 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach Comment
  UCR240781  Glehnia littoralis subsp. leiocarpa T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3515 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
  RSA218022  Gnaphalium californicum Walter Knight, I. Knight 1964-4-13 711 San Mateo Power Line Ridge Comment
  RSA15291  Gnaphalium luteoalbum C. B. Wolf 1927-4-3 259 San Mateo 1 mile above La Honda. Comment
  JROH789  Gnaphalium palustre John Hunter Thomas 1982-11-6 21196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM223282  Gnaphalium ramosissimum L. S. Rose 1935-8-13 35568 San Mateo Salada. 30 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
  CAS-BOT-BC304538  Grindelia hirsutula John Thomas Howell 1933-5-26 11348 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC304541  Grindelia hirsutula L. R. Abrams 1918-4-30 7064 San Mateo Bayshore Road, San Bruno Hills Comment
  CAS-BOT-BC304560  Grindelia hirsutula H. L. Mason 1921-7-3 s.n. San Mateo Pescadero - La Honda Road Comment
  POM203263  Grindelia hirsutula J. T. Howell 1933-5-26 11348 San Mateo Crystal Springs Lake. Comment
  SD39801  Grindelia hirsutula Edith A. Purer 1933-7-27 5369 San Mateo Sand dunes, two miles south of Pigeon Point. Comment
  UC1599358  Grindelia hirsutula L. R. Heckard 1961-7-16 1264 San Mateo across road from transmitting station KQED (near summit of mt.); San Bruno Mt. 335 Comment
  UC517530  Grindelia hirsutula Lewis S. Rose 1933-6-9 33221 San Mateo San Andreas Lake Comment
  JROH815  Grindelia hirsutula John H. Thomas 1970-4-4 15541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5709439 Image available Grindelia stricta Lowell E. Urbatsch 1972-1 1095 San Mateo Low area near coast along Hwy 1. Comment
  CDA6166  Grindelia stricta var. angustifolia T. C. Fuller 1968-9-25 17641 San Mateo North of road, west end of Dumbarton Bridge, Menlo Park. 0 Comment
  OBI49183  Grindelia stricta var. angustifolia Lewis S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  SD71025  Grindelia stricta var. angustifolia John Thomas Howell 1964-12-6 41032 San Mateo Millbrae, vacant lot near Southern Pacific Railway Station Comment
  RSA18368  Grindelia stricta var. platyphylla C. B. Wolf 1927-6-29 540 San Mateo South of Pebble Beach near Pescadero Comment
  CAS-BOT-BC282867  Hainardia cylindrica A. G. Vestal 1926-5-1 s.n. San Mateo San Pedro Point Comment
  CAS-BOT-BC282868  Hainardia cylindrica A. G. Vestal 1926-5-1 s.n. San Mateo San Pedro Point Comment
  RSA121240  Hainardia cylindrica A. Hormay 1932-5-29 17 San Mateo San Bruno. Comment
  UC1132185  Hainardia cylindrica A. Hormay 1932-5-29 San Mateo San Bruno 0 Comment
  JROH838  Helenium puberulum John Hunter Thomas 1977-6-16 18744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM161134  Helenium puberulum Josephine Randall 1907-7-24 s.n. San Mateo Near Crystal Springs Lake. Comment
  CAS-BOT-BC309527  Helenium puberulum Walter Knight; Irja Knight; James B. Roof 1963-8-4 s.n. San Mateo San Bruno Mountain. April Brook Comment
  CAS-BOT-BC309528  Helenium puberulum Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. In Colma Canyon Comment
  CAS-BOT-BC309530  Helenium puberulum E. M. Zeile 1921-7-30 1132 San Mateo Mussel Rock Comment
  UCD18540  Helenium puberulum Roman Gankin 1950-7-4 8 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  JROH861  Helianthella californica var. californica John Hunter Thomas 1989-5-9 24722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305339  Helianthella castanea Elizabeth McClintock; Phillip C. Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain. East side of mountain, above Harold Ave., Brisbane. Near fence separating Brisbane from Crocker Estate portion of mountain Comment
  CAS-BOT-BC224055  Helianthemum scoparium W. R. Dudley 1898-4-15 s.n. San Mateo Santa Cruz Mountain Peninsula. Jasper Ridge near Stanford University Comment
  CAS-BOT-BC224056  Helianthemum scoparium James McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  JROH1832  Helianthemum scoparium John H. Thomas 1961-5-5 9220 San Mateo Jasper Ridge Biological Preserve, Stanford University; at NW end of ridge 152 Comment
  CAS-BOT-BC305364  Helianthus annuus Ned Cahill 1974-10-8 373 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC305365  Helianthus annuus J. H. Thomas 1959-12-18 8521 San Mateo Near Palo Alto Yacht Harbor 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-BC314947  Hemizonia congesta subsp. luzulifolia A. D. E. Elmer 1903-5-1 4805 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC314948  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  JEPS127874  Hemizonia congesta subsp. luzulifolia Adam C. Schneider 2013-5-17 185 San Mateo Crystal Springs Reservoir. Comment
  JEPS30897  Hemizonia congesta subsp. luzulifolia J. H. Thomas 1958-6-11 7228 San Mateo about 4.3 mi due e Belmont (near Crystal Springs Reservoir) 91 Comment
  JEPS40999  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-9-5 64070 San Mateo w Redwood City; Emerald Lake 243 Comment
  JROH873  Hemizonia congesta subsp. luzulifolia John Hunter Thomas 1988-8-21 24562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG55408  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  UC193427  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-14 10232 San Mateo hills w Millbrae; Region of San Francisco Bay Comment
  CAS-BOT-BC314931  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-5-25 s.n. San Mateo Summit between San Mateo and Crystal Springs Lakes Comment
  CAS-BOT-BC314951  Hemizonia congesta subsp. luzulifolia Alice Eastwood 1919-9-1 s.n. San Mateo San Mateo Comment
  RSA81629  Hemizonia corymbosa subsp. corymbosa James I. McMurphy 1906-11-17 2 San Mateo Near Portola. Comment
  POM360315  Hemizonia luzulifolia L. S. Rose 1937-9-21 37662 San Mateo Emerald Lake, west of Redwood City. 183 Comment
  RSA81636  Hemizonia luzulifolia James I. McMurphy 1909-5-25 s.n. San Mateo Summit between San Mateo and Crystal Springs Lakes. Comment
  UC1084378  Heracleum lanatum G. Thomas Robbins 1937-4-11 75 San Mateo along Skyline Blvd. s. of San Francisco Comment
  JROH251  Heracleum maximum John H. Thomas 1977-4-29 18577 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB18565  Heracleum maximum Schulte, John 1963-4-28 San Mateo Sausal Creek, Jasper Ridge Area, 3 miles SW of Stanford, between Santa Clara Valley and main front of Santa Cruz Mountains 121 Comment
  JROH879  Hesperevax sparsiflora var. sparsiflora R. R. Hichborn 1920-4-12 67 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH893  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-5-25 20643 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH899  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1991-5-2 25008 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH902  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1992-4-23 25147 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM87769  Hesperevax sparsiflora var. sparsiflora L. R. Abrams 1902-5-4 2417 San Mateo Woodside Comment
  CAS-BOT-BC403870  Hesperocnide tenella James McMurphy 1906-5-14 s.n. San Mateo Above Stanford Residence, San Francisquito Creek Comment
  UC1219880  Hesperolinon congestum John H. Thomas 1961-5-14 9379 San Mateo road bank and outcropping just n dam on San Mateo Creek 121 Comment
  UC191381  Hesperolinon congestum Edward Lee Greene 1887-6-11 San Mateo Comment
  JROH2925  Hesperolinon micranthum John H. Thomas 1967-5-31 12943 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1647  Heterocodon rariflorum Ann Lambrecht 2009-5-13 37 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just off Trail 10 west of big drainage. Comment
  CAS-BOT-BC148462  Heteromeles arbutifolia Ned Cahill 1974-4-19 145 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC148465  Heteromeles arbutifolia J. H. Thomas 1949-10-16 1156 San Mateo Between Skyline Drive and Searsville Lake 304 Comment
  CAS-BOT-BC148466  Heteromeles arbutifolia W. R. Dudley 1904-12-7 s.n. San Mateo East of Baker's Beach - Santa Cruz Mountain Peninsula Comment
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Oct 11 2021
  CAS-BOT-BC148472  Heteromeles arbutifolia Cherie Wetzel 1969-7-8 919 San Mateo Serpentine near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC148473  Heteromeles arbutifolia A. D. E. Elmer 1903-2-1 s.n. San Mateo Portola Comment
  CAS-BOT-BC148474  Heteromeles arbutifolia A. D. E. Elmer 1903-2-1 4575 San Mateo Portola Comment
  JROH3679  Heteromeles arbutifolia John H. Thomas 1973-6-10 16814 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD49795  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. North central portion of ridge. 152 Comment
  OBI16088  Heterotheca sessiliflora subsp. bolanderi Lewis S. Rose 1966-8-20 66087 San Mateo San Bruno Mtn, summit 366 Comment
  JROH3885  Heuchera micrantha John H. Thomas 1970-5-16 15628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC420717  Heuchera micrantha Elizabeth McClintock 1972-5-10 s.n. San Mateo San Bruno Mountain, rocky slope just below parking lot, summit of mountain Comment
  CAS-BOT-BC424379  Heuchera micrantha var. hartwegii Walter & Irja Knight 1965-4-25 1051 San Mateo From ledges in Owl's Canyon; San Bruno Mountain 213 Comment
  CAS-BOT-BC424430  Heuchera pilosissima H. L. Mason 1921-6-2 s.n. San Mateo Hill near Pebble Beach, Pescadero Comment
  CAS-BOT-BC319633  Hieracium albiflorum George Oberlander 1950-5-6 997 San Mateo Sawyer Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC319634  Hieracium albiflorum David D. Keck 1934-7-7 2927 San Mateo Kings Mountain 548 Comment
  RSA18499  Hieracium albiflorum C. B. Wolf 1927-7-14 621 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  UC1137088  Hierochloe occidentalis August L. Hormay 1932-3-6 San Mateo near Pescadero (redwood belt); Blumequist Mill Comment
  UC768776  Hierochloe occidentalis R. F. Hoover 1939-3-3 3898 San Mateo on La Honda road above Portola Comment
  SEINET4584971  Hierochloe occidentalis R. Oliver 1976-4-18 s.n. San Mateo San Mateo Memorial Park 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
  JROH5206  Holcus lanatus John H. Thomas 1967-5-31 12929 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA2181  Holcus lanatus C. M. Sill 1960-1-15 San Mateo Plath Nursery, Pescadero. 0 Comment
  UCSC007757  Holcus lanatus Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  UCR122982  Holodiscus discolor George K. Helmkamp, E. A. Helmkamp 2001-6-2 6781 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  JROH3691  Holodiscus discolor var. discolor John H. Thomas 1974-5-29 17399 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM295704  Hordeum Lyman Benson 1930-4-26 2058 San Mateo Stanford University. 122 Comment
  RSA582071  Hordeum D. D. Keck 1932-4-29 1449 San Mateo Redwood City. Fields near the San Francisco Bay salt marshes Comment
  POM198993  Hordeum brachyantherum A. D. E. Elmer 1903-06 4857 San Mateo Crystal Springs Lake. Comment
  SJSU15222  Hordeum brachyantherum subsp. brachyantherum Toni Corelli 2011-5-23 704 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail. Coastal bluff top south of Bean Hollow Beach 7 Comment
  JROH5220  Hordeum brachyantherum subsp. californicum John H. Thomas 1968-5-3 14439 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5221  Hordeum brachyantherum subsp. californicum John H. Thomas 1973-6-10 16820 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0115578  Hordeum hystrix L. S. Rose 1953-4-17 53015 San Mateo Redwood City, along Bayshore Highway 3 Comment
  JROH5243  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1981-5-14 20579 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11678403  Hordeum murinum E. A. Purer 1933-1 5372 San Mateo 2 mi S of Pigeon Point Comment
  CAS-BOT-BC289393  Hordeum murinum subsp. glaucum H. A. Dutton 1900-4-19 s.n. San Mateo Woodside, Santa Cruz Peninsula Comment
  CAS-BOT-BC289394  Hordeum murinum subsp. glaucum George Oberlander 1950-4-22 798 San Mateo South boundary, San Francisco Watershed Reserve Comment
  CAS-BOT-BC289395  Hordeum murinum subsp. glaucum Ned Cahill 1974-5-30 319 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  JROH5252  Hordeum murinum subsp. glaucum John Hunter Thomas 1980-4-10 19879 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab. Comment
  POM352478  Hordeum murinum subsp. leporinum Edith A. Purer 1933-7-27 5372 San Mateo Two miles south of Pigeon Point Comment
  SD99477  Hordeum murinum subsp. leporinum Ira L. Wiggins 1975-4-17 22143 San Mateo NE side of Southern Pacific right-of-way, between San Francisquito Creek and Willow Road, Menlo Park Comment
  CAS-BOT-BC536142  Horkelia californica Josephine D. Randall 1907-7-23 338 San Mateo Near Crystal Springs Lake, Santa Cruz Peninsula Comment
  CAS-BOT-BC536143  Horkelia californica L. R. Abrams 1926-5-26 11219 San Mateo San Bruno Hills near Daly City Comment
  CAS-BOT-BC536144  Horkelia californica Helen D. Geis 1901-10-25 s.n. San Mateo Spanishtown [Half Moon Bay] near cemetery Comment
  CAS-BOT-BC536146  Horkelia californica L. R. Abrams; I. L. Wiggins 1939-6-3 436 San Mateo Half mile inland from the sand dunes, Ano Nuevo Point Comment
  HSC18685  Horkelia californica L. S. Rose 1966-8-20 66086 San Mateo San Bruno Mtn., head of Colma Canyon 206 Comment
  RSA122282  Horkelia californica H. S. Yates 1935-2-3 5008 San Mateo 1/2 mile SE of Pigeon Point. 30 Comment
  SBBG32394  Horkelia californica var. californica L. S. Rose 1966-8-20 San Mateo head of Colma Cyn, San Bruno Mtn 205 Comment
  UCR19821  Horkelia cuneata C. S. Life 1923-1 s.n. San Mateo San Francisco 135 Comment
  JEPS101839  Horkelia cuneata subsp. sericea Dean W. Taylor 2000-4-25 17450 San Mateo 1.5 air mi E of Half Moon Bay; Frenchmans Creek, Apanilio Creek 160 Comment
  CAS-BOT-BC144011  Horkelia marinensis James McMurphy 1909-6-13 s.n. San Mateo Hills back of Colma Comment
  CDA5496  Hydrocotyle sibthorpioides T. C. Fuller 1970-5-12 19531 San Mateo Emily Brown property, 3045 Ralston Avenue, Burlingame. 0 Comment
  JROH2770  Hypericum calycinum Toni Corelli 2008-10-15 355 San Mateo Jasper Ridge Biological Preserve, Stanford University; west of Road C, beyond Trail 1, before low flow crossing 83 Comment
  UCD160243  Hypericum canariense Christopher Dillis 2015-5-15 6 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  JROH912  Hypochaeris glabra John H. Thomas 1961-4-29 9187 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD133331  Hypochaeris glabra W. A. Harvey; J. M. Tucker 1948-6-29 1706 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  SD39736  Hypochaeris radicata Edith A. Purer 1933-7-27 5394 San Mateo 2.0 miles south of Pigeon Point. Comment
  UC1598591  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  JROH5581  Impatiens balfourii John Rawlings 2013-7-2 1193 San Mateo Jasper Ridge Biological Preserve, Stanford University; downstream of Low Flow Crossing and about 100 m north of serpentine contact 78 Comment
  UCR240780  Iris T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3517 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
  UC1206487  Iris douglasiana Le Roy Abrams 1902-5-11 2441 San Mateo San Mateo Canyon Comment
  UC143465  Iris longipetala C. F. Baker 1902-3-22 348 San Mateo South San Francisco Comment
  UC311543  Iris macrosiphon A. D. E. Elmer May 1903 4503 San Mateo Portola Comment
  UC494237  Iris macrosiphon Anna E. Ehlers 281 San Mateo San Andreas Comment
  UC571173  Iris macrosiphon A. E. Borell 1928-4-1 58 San Mateo San Bruno Mountains Comment
  CAS-BOT-BC57728  Isoetes howellii W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge, near Black Mountain Comment
  POM185726  Isolepis cernua E. B. Copeland 1903-5-24 3258 San Mateo Montara Point. Comment
  CAS-BOT-BC112621  Isolepis cernua W. R. Dudley 1909-10-4 s.n. San Mateo Border of Laguna Alta near Mussel Rock. Comment
  SJSU4270  Jaumea carnosa D. R. Conradson 1968-10-9 San Mateo by Palo Alto Yacht Harbor Comment
  UC1192238  Jaumea carnosa Malcolm A. Nobs and S. Galen Smith 1949-8-26 1598 San Mateo marshes at mouth Pescadero Creek Comment
  JROH2771  Juglans hindsii John H. Thomas 1976-11-5 18432 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  SEINET10879451  Juncus balticus P. Rubtzoff, Elizabeth M. McClintock 1989-8-31 Rubtzoff 10045 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along old Guadalupe Road, east of the Saddle Trail junction, San Bruno Mountains. Comment
  SEINET3559014 Image available Juncus bufonius Lewis S. Rose 1932-6-26 s.n. San Mateo Pilarcitos Lake. Comment
  UC1101043  Juncus bufonius var. congestus Herbert L. Mason 1949-7-7 14030 San Mateo Mouth of Gazos Creek Comment
  HSC23990  Juncus confusus Mary Katherine Wicksten 1971-7-2 153 San Mateo Huddart Park at Miwok area Comment
  UC1101015  Juncus effusus subsp. pacificus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1589 San Mateo about 1 mi s Half Moon Bay Comment
  POM312825  Juncus effusus subsp. pacificus Malcolm A. Nobs, S. Galen Smith 1949-8-26 1589 San Mateo About 1 mile south of Half Moon Bay. Comment
  UC1101030  Juncus hesperius Verne Grant and Herbert L. Mason 1946-8-28 13081 San Mateo n of San Francisco county prison Comment
  UC1601735  Juncus lescurii J. Burtt Davy 1893-6-22 758 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  UCSC007263  Juncus lescurii Randall Morgan 1987-4-29 s.n. San Mateo Ravine in 1st big gorge north of Comment
  JROH4479  Juncus occidentalis John H. Thomas 1967-5-10 12856 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18448  Juncus patens Carl B. Wolf 1927-6-29 559 San Mateo South of Pebble Beach near Pescadero Comment
  UC1601846  Juncus patens J. Burtt Davy 1893-6-22 760 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC227612  Juncus patens Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. Shearwater 22 Comment
  CAS-BOT-BC210074  Juncus phaeocephalus Peter Rubtzoff 1980-8-4 9562 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
  CAS-BOT-BC210152  Juncus phaeocephalus Peter Rubtzoff 1979-7-26 9297 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCR121571  Juncus phaeocephalus var. phaeocephalus George K. Helmkamp, E. A. Helmkamp 1999-6-28 5001 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JROH4507  Juncus xiphioides John H. Thomas 1973-4-14 16568 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU16014  Juncus xiphioides John Rawlings, Ken Hickman 2016-5-26 1811 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH4042  Kickxia spuria H. J. Dengler 1965-8-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in S.F. Creek bed just below N. bend Comment
  CAS-BOT-BC508359  Kniphofia Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo Edge of P.G.&E. marsh, San Bruno Mountains Comment
  JROH5263  Koeleria macrantha W. Lennihan unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine, 50' east of fire road, east of moisture tubes in neutron probes. Comment
  UC1738871  Koeleria macrantha Dean W. Taylor 1988-3-30 9491 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest; right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 176 Comment
  JROH958  Lagophylla ramosissima John H. Thomas 1961-4-29 9185 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH962  Lagophylla ramosissima John H. Thomas 1975-7-31 17984 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA128849  Lagophylla ramosissima L. R. Abrams 1914-6-2 5111 San Mateo Searsville Lake. Comment
  POM283266  Lamium amplexicaule Lyman Benson 1930-4-17 2078 San Mateo Stanford University, foothills. Upper Sonoran. 122 Comment
  CAS-BOT-BC339087  Lasthenia californica Kenton L. Chambers 1956-6-20 1046 San Mateo Pebble Beach near Pescadero Point Comment
  CDA33782  Lasthenia californica D. G. Kelch 2011-3-13 11 .047 San Mateo Pacifica. Along sea bluffs Comment
  CAS-BOT-BC339051  Lasthenia californica Alex Briggs 1922-5-27 s.n. San Mateo Mirimar [Miramar] Comment
  CAS-BOT-BC339088  Lasthenia californica W. R. Dudley 1899-5-14 s.n. San Mateo About hills southwest of Baden Comment
  CAS-BOT-BC339097  Lasthenia californica J. H. Thomas 1949-4-1 215 San Mateo Hills west of Redwood City Comment
  UC135324  Lasthenia californica subsp. californica unknown 1903-4-6 1890 San Mateo San Bruno Hills Comment
  UC762042  Lasthenia californica subsp. californica R. F. Hoover 1939-4-21 4055 San Mateo 2 mi s of Colma Comment
  SEINET11811271  Lasthenia chrysostoma L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt. 1 Comment
  UC1142638  Lasthenia glabrata subsp. glabrata Edw. L. Greene 1886-5-11 San Mateo Belmont Comment
  RSA585990  Lasthenia gracilis Adree M. Desrochers 1989-4-17 447 San Mateo Near Palo Alto. Jasper Ridge, Biological Preserve of Stanford University. Comment
  CAS-BOT-BC368190  Lasthenia minor Otto M. Sokol 1953-5-9 52 San Mateo Pescadero Beach Comment
  UC188985  Lasthenia minor Michener and Bioletti 1892-5-1 San Mateo Cemeteries Comment
  SFV3758  Lasthenia minor B. J. McCaskill 1954-5-8 295 San Mateo Moss Beach. On bank above beach. Comment
  RSA22957  Lathyrus latifolius L. R. Abrams, I. L. Wiggins, D. Abrams 1939-6-3 421 San Mateo Roadside 3-4 miles east of San Gregorio, on La Honda Road. Comment
  RSA11932  Lathyrus vestitus subsp. vestitus Elmer I. Applegate 1895-3-9 140 San Mateo Woodside Comment
  POM319934  Lathyrus vestitus subsp. vestitus Barbara Shervanick 1973-4-1 818 San Mateo San Bruno Mt. at first summit at end of Crocker Rd. Comment
  RSA120413  Lathyrus vestitus subsp. vestitus Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road 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
  JROH2033  Lathyrus vestitus var. vestitus John Hunter Thomas 1978-4-20 19083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC15326  Lathyrus vestitus var. vestitus J. Burtt Davy 1895-4-20 1054 San Mateo Lake Pilarcitos Comment
  UC85315  Lathyrus vestitus var. vestitus C. F. Baker 1902-1-15 240 San Mateo w side Kings Mountain Comment
  JEPS17917  Lavatera arborea Rimo Bacigalupi 1955-8-4 5450 San Mateo just n Montara Point lighthouse (at town of Montara); Montara Comment
  UCR122978  Lavatera cretica George K. Helmkamp, E. A. Helmkamp 2001-6-2 6799 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  SEINET11811293  Layia chrysanthemoides M. T. Doutt 1931-1 413 San Mateo Skyline Blvd., W of Hillbrae Comment
  CAS-BOT-BC321067  Layia gaillardioides A. D. E. Elmer 1903-6-1 4261 San Mateo Alpine School House Comment
  CAS-BOT-BC321068  Layia gaillardioides A. D. E. Elmer 1903-6-1 4261 San Mateo Crystal Springs Lake Comment
  UC828922  Layia gaillardioides Lewis S. Rose 1935-5-4 35149 San Mateo Burlingame Comment
  UC89225  Layia gaillardioides Katharine Brandegee 1905-6-20 San Mateo banks a few miles from San Mateo Comment
  UC935712  Layia gaillardioides David D. Keck 1932-5-6 1483 San Mateo w of Milbrae Highlands Skyline Boulevard; Santa Cruz Mountains Comment
  JROH985  Layia hieracioides John H. Thomas 1974-5-3 17236 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC913102  Layia hieracioides David D. Keck and Wm. M. Hiesey 1940-6-1 5166 San Mateo opposite n end of Lake San Andreas; Skyline Boulevard 135 Comment
  CAS-BOT-BC327510  Layia hieracioides W. R. Dudley 1900-5-19 s.n. San Mateo La Honda Stage Road below Grand View Saloon Comment
  CAS-BOT-BC382076  Layia platyglossa Roxana S. Ferris 1921-4-7 21030 San Mateo San Bruno Mt. 213 Comment
  JEPS121448  Layia platyglossa Adam C. Schneider with C. Matt Guilliams 2013-3-9 25 San Mateo Crystal Springs Reservoir Comment
  SBBG39520  Layia platyglossa L. S. Rose 1970-5-3 San Mateo Black Mtn, Skyline Blvd, W of San Mateo 121 Comment
  CAS-BOT-BC382219  Layia platyglossa David D. Keck 1932-5-6 1491 San Mateo East side of Crystal Springs Lake 60 Comment
  UCD69035  Layia platyglossa P. Rodriguez-Rojo 1997-3-27 San Mateo Jasper Ridge. Serpentine annual grasslands. UTM: 10SEM4168 155 Comment
Read comments
Sep 9 2011
  CAS-BOT-BC534549  Lemna gibba W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Peninsula, Woodside Valley Ponds Comment
  CAS-BOT-BC527272  Lemna minuta Carl B. Wolf 1929-4-29 3660 San Mateo 10 miles south of San Franciscot on Skyline Blvd. Comment
  LA64432  Lepechinia calycina Lewis S. Rose; 1933-6-9 33225 San Mateo Belmont Comment
  UC306600  Lepechinia calycina A. D. E. Elmer Jun 1903 4416 San Mateo San Mateo Comment
  SEINET12277319  Lepechinia calycina Unknown 1932-1 9175 San Mateo Gov. Rolph's Estate Comment
  CAS-BOT-BC89130  Lepidium didymum J. H. Thomas 1958-8-1 7370 San Mateo About 0.5 mile north of mouth of Pescadero Creek. 0 Comment
  CAS-BOT-BC89137  Lepidium didymum Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-26 1594 San Mateo Marshes at the south of Pescadero Creek. Comment
  JROH1537  Lepidium latifolium John Rawlings, Ann Lambrecht 2009-7-3 0923 San Mateo Jasper Ridge Biological Preserve, Stanford University; north bank of Bear Creek 82 Comment
  CAS-BOT-BC311787  Lepidium latifolium John Thomas Howell 1978-7-18 53189 San Mateo At Airport Sheraton, Airport Blvd., Burlingame 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
  JROH1540  Lepidium nitidum John H. Thomas 1955-5-6 4988 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1554  Lepidium nitidum John Hunter Thomas 1991-4-11 24984 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1555  Lepidium nitidum John Rawlings 2008-3-14 1032 San Mateo Jasper Ridge Biological Preserve, Stanford University. West Serpentine Chaparral 169 Comment
  UC10674  Lepidium nitidum Mrs. Brandegee 1892-4-9 San Mateo South San Francisco Comment
  JROH1556  Lepidium pinnatifidum Herbert Dengler 1972-9-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of S.F. Cr. by old bridge site -- where entrance opposite Whiskey Hill leads some 1000' to S.F. Cr. crossing Comment
  JROH5274  Leptochloa fusca subsp. uninervia W. Lennihan 1980-11-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake (formed by Corte Madera Creek). Comment
  JROH5275  Leptochloa fusca subsp. uninervia John Hunter Thomas 1980-11-27 20179 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake (formed by Corte Madera Creek). Comment
  CAS-BOT-BC226610  Leptosiphon ambiguus George Oberlander 1950-4-22 778 San Mateo San Francisco Watershed Reserve Comment
  JEPS58097  Leptosiphon androsaceus Adele Lewis Grant 936 San Mateo near Pescadero; Pebble Beach 3 Comment
  POM65863  Leptosiphon androsaceus L. R. Abrams 1901-05 1569 San Mateo Woodside Comment
  JROH5663  Leptosiphon androsaceus Herb Dengler 1970-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  POM128438  Leptosiphon liniflorus L. R. Abrams 1902-5-4 2416 San Mateo Woodside. Comment
  POM65858  Leptosiphon liniflorus L. R. Abrams 1901-05 1562 San Mateo Woodside Comment
  RSA128499  Leptosiphon liniflorus Harry A. Dutton 1900-4-3 s.n. San Mateo Woodside serpentine [?] Comment
  CAS-BOT-BC300525  Leptosiphon liniflorus R. K. Wellman 1981-5-14 027 San Mateo Sawyer Camp Rd. in Hillborough [Hillsborough] city limits. 1/2 mi in from rd. start 15 Comment
  POM65529  Leptosiphon liniflorus A. D. E. Elmer 1903-06 4704 San Mateo Crystal Springs Lake, southern end. Comment
  JROH3190  Leptosiphon parviflorus John H. Thomas 1966-4-6 11551 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3191  Leptosiphon parviflorus John Hunter Thomas 1981-4-23 20479 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38813  Leptosiphon parviflorus Edith A. Purer 1933-4-25 3640 San Mateo Comment
  JEPS21650  Lessingia arachnoidea L. R. A. 1902-9-2 2996 San Mateo Crystal Lake Comment
  RSA136098  Lessingia arachnoidea W. R. Dudley 1902-9-21 s.n. San Mateo By road east of Crystal Springs Reservoir-near fork to Alius(?) House Comment
  SBBG39542  Lessingia arachnoidea L. S. Rose 1970-7-26 70077 San Mateo Skyline Blvd., Hillsborough, Black Mtn 121 Comment
  UC1287457  Lessingia arachnoidea Willard Spence 1960-7-2 555 San Mateo Route 5 Crystal Springs Lake Comment
  UC87932  Lessingia arachnoidea C. F. Baker 1902-9-2 1548 San Mateo Crystal Springs Lake Comment
  JROH1009  Lessingia glandulifera var. glandulifera John H. Thomas 1963-5-15 10091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC324183  Lessingia hololeuca LeRoy Abrams 1902-9-21 2987 San Mateo Crystal Springs Comment
  CAS-BOT-BC324184  Lessingia hololeuca LeRoy Abrams 1900-10-1 1004 San Mateo Portola Comment
  CAS-BOT-BC324185  Lessingia hololeuca LeRoy Abrams 1907-10-12 s.n. San Mateo Portola Comment
  UC773784  Leymus X vancouverensis Frank W. Gould 1948-6-19 4716 San Mateo about 2 mi s Pescadero (sand dunes at high tide level) Comment
  CAS-BOT-BC272184  Leymus triticoides Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo Lower Guadalupe Parkway north of school, San Bruno Mountains Comment
  CAS-BOT-BC272186  Leymus triticoides Paul Reeberg 1988-10-31 s.n. San Mateo At mouth of ravine west of quarry, San Bruno Mountains Comment
  CAS-BOT-BC45870  Limnanthes douglasii var. sulphurea William Anderson 1966-4-22 n.s San Mateo Canyon Road Comment
  POM259951  Limosella acaulis I. L. Wiggins, Roxana S. Ferris 1939-8-2 9294 San Mateo Ano Nuevo Point Comment
  JROH5866  Limosella acaulis Herb Dengler 1982-8-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  SEINET4854778  Linanthus croceus Alice Eastwood 1901-5-19 s.n. San Mateo Blenheim. Comment
  JROH3183  Linanthus dichotomus D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  UC729681  Linanthus parviflorus Carl B. Wolf 1929-4-24 3656 San Mateo back of Stanford University (sw end of Jasper Ridge); Jasper Ridge 152 Comment
  UCSC005674  Linanthus parviflorus Randall Morgan 1994-4-2 2172 San Mateo Jasper Ridge Comment
  SJSU12175  Linaria maroccana V. J. Haley 1985-3-6 San Mateo near El Monte & Moody Rds, Los Altos Hills Comment
  CDA6306  Linaria purpurea T. C. Fuller 1968-10-3 17659 San Mateo Christie s Crescent Nursery, Half Moon Bay. 0 Comment
  UC1135272  Lithocarpus densiflorus C. M. Belshaw 1935-1-25 1472 San Mateo 2.5 mi nw Sierra Moreno Peak; Santa Cruz Quad. 609 Comment
  RSA212176  Lithocarpus densiflorus var. densiflorus L. S. Rose 1969-8-22 69098 San Mateo Skyline Blvd. & La Honda Road. 610 Comment
  RSA252256  Lithocarpus densiflorus var. densiflorus Gary D. Wallace 1974-12-28 1375 B San Mateo Santa Cruz Mtns. along Skyline Blvd (Hwy. 35) w of Redwood City, 2.8 mi n of King Mtn Rd. 640 Comment
  JROH3892  Lithophragma affine John Hunter Thomas 1983-4-5 21318 San Mateo Jasper Ridge Biological Preserve, Stanford University; below rattlesnake rock Comment
  RSA274343  Lithophragma heterophyllum Lyman Benson 1928-4-21 102 San Mateo Jaspar Ridge. Stanford University. Santa Cruz mtn range. San Francisquito Creek. 152 Comment
  JROH744  Logfia gallica John Hunter Thomas 1988-5-3 24436 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area Comment
  JROH750  Logfia gallica John Hunter Thomas 1992-5-26 25362 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
  CAS-BOT-BC173835  Lolium multiflorum Peter Rubtzoff 1977-6-21 9059 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  JEPS71241  Lolium multiflorum William S. Cooper 1919-7-22 213 San Mateo Ano Nuevo Pt. Comment
  UC1132202  Lolium multiflorum N. K. Carlson 1935-6-29 110 San Mateo 1 mi s Pescadero; Santa Cruz Quadrangle Comment
  CAS-BOT-BC269126  Lolium perenne George Oberlander 1949-7-25 249 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC269124  Lolium perenne W. R. Dudley No date on label s.n. San Mateo Santa Cruz Mountain Peninsula. Top of higher hills from Jersey Farm to Sneath's Ranch Comment
  CAS-BOT-BC269125  Lolium perenne Sister Anna Voss 1950-6-8 s.n. San Mateo N.W. head of Ravine behind Belmond Church Comment
  CAS-BOT-BC269174  Lolium temulentum No date on label s.n. San Mateo Colma Comment
  CAS-BOT-BC269176  Lolium temulentum W. R. Dudley 1900-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Summit La Honda stage road Comment
  UC75212  Lomatium caruifolium var. caruifolium unknown 1902-4-8 2751 San Mateo San Andreas Lake Comment
  JROH255  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1955-5-6 5012 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1301125  Lomatium dasycarpum subsp. dasycarpum Helen K. Sharsmith 1963-2-16 5145 San Mateo summit San Bruno Mt.; San Francisco Bay Region, San Bruno Mt. 396 Comment
  JEPS17119  Lomatium macrocarpum W. L. Jepson 1914-3-22 5736 San Mateo Redwood City Comment
  JROH274  Lomatium macrocarpum John H. Thomas 1962-5-31 9894 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH276  Lomatium macrocarpum John H. Thomas 1973-4-20 16583 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1301122  Lomatium utriculatum Helen K. Sharsmith 1963-2-16 5133 San Mateo lower slopes San Bruno Mt. (above Daly City); San Francisco Bay Region, San Bruno Mt. 106 Comment
  CAS-BOT-BC240601  Lonicera hispidula Daniel Cohen 1953-6-5 110 San Mateo Los Trancos Woods Comment
  JEPS85576  Lonicera hispidula var. vacillans Craig Dremann 1986-8-30 323 San Mateo e La Honda (along Cal. Highway 84 (Woodside-La Honda Road), mile marker 6.68, 150 ft w between road and creek) Comment
  CAS-BOT-BC241543  Lonicera involucrata var. ledebourii W. R. Dudley June s.n. San Mateo San Francisquito Cr., Palo Alto Ranch Comment
  CAS-BOT-BC243970  Lonicera involucrata var. ledebourii David D. Keck 1938-5-30 4726 San Mateo San Gregorio 30 Comment
  SBBG112484  Lonicera involucrata var. ledebourii C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 2.3 mi E of Hwy 1 38 Comment
  UC139415  Lonicera involucrata var. ledebourii C. F. Baker 1903-4-8 1918 San Mateo San Andreas Lake Comment
  RSA187498  Lotus corniculatus John H. Thomas 1954-6-11 4271 San Mateo 0.8 miles north of Pescadero Creek. 30 Comment
  POM18625  Lotus formosissimus Edward L. Greene 1902-5-1 689 San Mateo Crystal Springs Lake. Comment
  UC80966  Lotus formosissimus Katharine Brandegee 1905-6-20 San Mateo seashore of Halfmoon Bay Halfmoon Bay Comment
  UC15648  Lotus micranthus J. Burtt Davy Jun 21 1893-Jun 23 1893 1156 San Mateo Pilarcitos Lake and Canyon Comment
  UC80843  Lotus micranthus C. F. Baker 1902-5-4 744 San Mateo Woodside Comment
  POM18624  Lotus stipularis C. F. Baker 1902-5-10 805 San Mateo Kings Mountain. Comment
  POM18648  Lotus wrangelianus C. F. Baker 1902-5-1 776 San Mateo Crystal Springs Lake. Comment
  POM276636  Lotus wrangelianus Lyman Benson 1931-3-15 2648 San Mateo Redwood City 152 Comment
  IRVC28817  Lupinus P. W. Rundel 1962-7-27 1110 San Mateo Lake Tahoe, Emerald Bay. Sierra Nevada Ranges Comment
  POM10965  Lupinus affinis C. F. Baker 1902-04 1928 San Mateo Crystal Springs Lake. Comment
  UC201919  Lupinus affinis A. D. E. Elmer April, 1903 5021 San Mateo Portola Comment
  JEPS64922  Lupinus albifrons W. L. Jepson 1921-4-3 9108 San Mateo Colma Canyon near Colma; Colma Canyon Comment
  SEINET5558503  Lupinus albifrons H. S. Gentry 1931-1 31 San Mateo Collected about 2 miles W of San Bruno. Comment
  SEINET5766835 Image available Lupinus albifrons Lewis S. Rose 1931-1 s.n. San Mateo Belmont Comment
  UCD105911  Lupinus albifrons Leslie Fenster 1964-3-22 11 San Mateo 3 miles up (south) Polhemus Road, Cahill Ridge. 152 Comment
  SEINET10488379  Lupinus albifrons Charles Piper Smith 1948-4-23 Smith 48150 San Mateo Canada road 4 miles n of woodside Comment
  SEINET10488409  Lupinus albifrons Charles F. Baker 1903-4-6 Baker 1889 San Mateo San bruno hills, tufts of many stems on a woody base Comment
  CAS-BOT-BC196112  Lupinus albifrons var. collinus Charles Piper Smith 1908-4-26 1417 San Mateo Side of San Bruno Mountain, south-east of Cemeteries Comment
  CAS-BOT-BC196113  Lupinus albifrons var. collinus John H. Thomas 1955-4-6 4833 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  CAS-BOT-BC196114  Lupinus albifrons var. collinus R. Hoffough 1929-5-18 611 San Mateo Crystal Springs Lake - Skyline Blvd near San Francisco Comment
  CAS-BOT-BC196115  Lupinus albifrons var. collinus Charles Piper Smith 1908-4-26 1417 San Mateo S. San Francisco - north, base of San Bruno Mt. Comment
  CAS-BOT-BC196116  Lupinus albifrons var. collinus A. D. E. Elmer 1903-5-1 4642 San Mateo San Bruno Hills Comment
  RSA750173  Lupinus albifrons var. collinus Robert F. Thorne 1963-6-9 32209 San Mateo On top of San Bruno Mountain. 335 Comment
  SJSU10691  Lupinus arboreus H. L. Elliot 1958-5-31 111 San Mateo 8 mi S of Half Moon Bay Comment
  SEINET10488471  Lupinus arboreus Marcus E. Jones 1881-6-30 Jones 2322 San Mateo Comment
  SEINET10488480  Lupinus arboreus Charles Piper Smith 1948-4-23 Smith 48140 San Mateo Hwy 1. 1.1 Miles n montara Comment
  SEINET10488484  Lupinus arboreus Walter Knight, Irja Knight 1964-5-4 Knight s.n. San Mateo San bruno mountains. Nell pubescent from claw to tip. Colma canyon Comment
  JROH2119  Lupinus bicolor Toni Corelli 2010-3-29 364 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Road E at junction Trail 9 106 Comment
  UC764739  Lupinus bicolor R. F. Hoover 1939-4-21 4054 San Mateo 2 mi s Colma; s of Colma Comment
  UC81971  Lupinus bicolor C. F. Baker 1903-4-8 1921 San Mateo San Andreas Lake Comment
  SEINET10484976  Lupinus bicolor var. umbellatus David B. Dunn, Howard Brown 1946-5-15 Dunn 2597 San Mateo In meadow land in the bottom of a ravine about 50 ft. Deep with a small lake at One end. 1 Block n os sloat blvd. At vale ave. Growing with #2596 as one Colony but with flower size easily marking off #2596. Comment
  SEINET11071791 Image available Lupinus collinus A. A. Heller 1907-4-25 8462 San Mateo San Bruno Hills Comment
  SBBG11058  Lupinus formosus D. E. Breedlove 1961-6-18 600 San Mateo 3 mi S of rd to Half Moon Bay on US 5 365 Comment
  UC864963  Lupinus formosus Alice Eastwood, John Thomas Howell 1938-6-26 6075 San Mateo above La Honda; above La Honda Comment
  POM276449  Lupinus formosus var. formosus Lyman D. Benson 1932-7-25 3955 San Mateo Menlo Park. 30 Comment
  SD37885  Lupinus formosus var. formosus Edith A. Purer 1933-8-13 5426 San Mateo Near Belmont Comment
  JEPS23917  Lupinus latifolius var. latifolius W. R. Dudley 1895-6-7 4232 San Mateo top of ridge between Pescadero and Butano Creek; between Pescadero and Butano Creek Comment
Read comments
Feb 28 2011
  UCD108701  Lupinus microcarpus var. densiflorus A. A. Heller 1907-5-23 8561 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  JROH2127  Lupinus nanus John H. Thomas 1967-4-28 12723 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG66998  Lupinus nanus L. R. Abrams 1914-4-20 5128 San Mateo confluence of Los Troncos and San Francisquito crks Comment
  JROH5732  Lupinus nanus John H. Thomas 1976-4-30 18100 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH5865  Lupinus nanus John H. Thomas 1975-4-5 17716 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA143002  Lupinus nanus subsp. nanus John H. Thomas 1960-4-26 8597 San Mateo Along Sand Hill Road, between Menlo Park and Searsville. 91 Comment
  POM276302  Lupinus pachylobus Lyman D. Benson 1935-4-27 6419 San Mateo La Honda Road, Santa Cruz Mts, east of Skyline Blvd., San Francisco Bay watershed. 457 Comment
  SEINET10486130  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-15 Dunn 2591 San Mateo Collected in vacant lots on both sides of sloat blvd. Just west of riverton Drive in san francisco. Comment
  SEINET10486141  Lupinus polycarpus William R. Dudley 1894-4-11 Dudley UMO 180410 San Mateo Near Menlo Park Reservoir. Comment
  SEINET10486161  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-15 Dunn 2530 San Mateo Collected n of palo alto on walsh rd, 1.1 mi w of the corner of walsh rd and Altachul avenue. Comment
  JEPS81168  Lupinus polyphyllus Edward Lee with H. L. Mason 1935-6-16 1529 San Mateo between Ano Nuevo and Franklin Point; between Ano Nuevo and Franklin Point Comment
  RSA181297  Lupinus succulentus John H. Thomas 1965-4-13 10565 San Mateo Along El Camino Real in San Carlos. Comment
  POM248727  Lupinus variicolor Alice Eastwood, John T. Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  RSA21949  Lupinus variicolor Alice Eastwood, John T. Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  RSA162483  Lupinus variicolor E. K. Balls 1963-5-22 12065 San Mateo 4.1 miles N of Moss Beach, along Hwy 1. 61 Comment
  RSA176707  Lupinus variicolor John H. Thomas 1964-6-28 10437 San Mateo Along highway 1 near Pedro Point. Comment
  UC201933  Lupinus variicolor Miss Harriet A. Walker 1915-4-24 3808 San Mateo in field near road to Millbrae; near road to Millbrae Comment
  JROH3362  Lysimachia arvensis H. A. Dutton 1900-2-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3368  Lysimachia arvensis John Hunter Thomas 1982-7-8 21077 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  JROH5907  Lysimachia arvensis L. Nordby 1982-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Searsville Lab on the west side of the lake Comment
  SJSU10438  Lythrum hyssopifolia S. R. Piazza 1963-6-27 San Mateo by Hwy 1, 2 mi N of Pigeon Point Lighthouse Comment
  JROH2953  Lythrum hyssopifolia John Hunter Thomas 1983-5-23 22248 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dry road and low-flow crossing on shack side Comment
  CAS-BOT-BC343901  Madia elegans George Oberlander 1949-9-25 369 San Mateo San Francisco Watershed Reserve. North of San Andreas L. Comment
  CAS-BOT-BC343917  Madia elegans H. M. Hall 1930-8-17 12882 San Mateo East side of Crystal Spring Lake, on grade going to San Mateo Comment
  CAS-BOT-BC343918  Madia elegans John Thomas Howell 1926-10-9 2221 San Mateo Between Crystal Spring Lakes and San Mateo Comment
  CAS-BOT-BC344490  Madia exigua Ned Cahill 1974-4-29 211 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1067  Madia gracilis John H. Thomas 1958-5-10 7142 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1079  Madia gracilis John Hunter Thomas 1981-5-19 20602 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC917256  Madia gracilis W. A. Harvey and J. M. Tucker 1948-6-29 1703 San Mateo beside road to, just w of junction with Highway 5 Portola State Park; Skyline Boulevard Comment
  RSA6299  Madia gracilis D. D. Keck 1932-5-6 1485 San Mateo Hills just west of Millbrae Highlands 120 Comment
  SEINET5782363 Image available Madia madioides L. S. Rose 1941-7-2 41287 San Mateo Kings Mountain Comment
  UCR121558  Madia madioides George K. Helmkamp, E. A. Helmkamp 1999-6-28 4977 B San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  RSA152256  Madia madioides I. L. Wiggins 1925-04 1663 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  CAS-BOT-BC353475  Madia sativa Peter Rubtzoff 1979-7-26 9301 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  UC913116  Madia sativa David D. Keck 1930-10-15 988 San Mateo sw Woodside; Coast Ranges 450 Comment
  CDA8283  Madia sativa A. C. Browne 1950-8-12 San Mateo Alpine Creek. 0 Comment
  UCD134343  Madia sativa Lewis S. Rose 1966-8-6 66078 San Mateo San Bruno Mountain, head of Colma Canyon. 213 Comment
  CAS-BOT-BC510723  Maianthemum dilatatum John H. Thomas 1961-5-7 9288 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC510724  Maianthemum dilatatum John H. Thomas 1963-9-11 10266 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC510725  Maianthemum dilatatum John H. Thomas 1961-5-7 9288 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC511332  Maianthemum dilatatum John H. Thomas 1961-5-7 9288 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC511333  Maianthemum dilatatum Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain, exposed slopes below top of mountain Comment
  CHSC57554  Maianthemum racemosum Diane Mastalir 1988-3-27 2 San Mateo 6.7 mi s of jct Hwy 1 and Hwy 92, 0.3 mi e on Pescadero Rd. 12 Comment
  SD39134  Maianthemum racemosum subsp. amplexicaule McCallum 1933-5-22 2145 San Mateo Damp woods in Los Trancus woods. Comment
  SEINET3992466  Maianthemum stellatum Unknown 1950-4-6 1809 San Mateo Shaded canyon above Visitation Valley, San Bruno Mountains Comment
  SJSU2303  Malva arborea C. W. Sharsmith 1950-4-16 6632 San Mateo near Pescadero Point near Pescadero Comment
  JROH2968  Malva nicaeensis John Hunter Thomas 1980-5-20 19980 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2970  Malva nicaeensis John Hunter Thomas 1983-5-23 22240 B San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  JROH1898  Marah fabacea James Newman 1951-4-21 41 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  RSA176523  Marah fabacea John H. Thomas 1961-4-29 1995 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  SEINET5560624  Marah fabacea H. S. Gentry 1931-1 13 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  POM59385  Marah oregana Stewart H. Burnham 1894-4-21 s.n. San Mateo San Mateo. Comment
  JROH618  Matricaria discoidea John H. Thomas 1975-4-19 17793 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348192  Matricaria discoidea George Oberlander 1949-4-9 26 San Mateo San Francisco Watershed Reserve. San Andreas Valley Comment
  CAS-BOT-BC348193  Matricaria discoidea Philip C. Wheeler 1965-5-8 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC348194  Matricaria discoidea Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Crocker Hills Comment
  CAS-BOT-BC348195  Matricaria discoidea Peter H. Raven 1950-6-3 2211 San Mateo Along Millbrae Ave., Millbrae 60 Comment
  CAS-BOT-BC269469  Melica californica David D. Keck 1933-5-11 2310 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC269479  Melica californica George Oberlander 1950-4-23 808 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  RSA101020  Melica geyeri G. Oberlander 1950-4-23 867 San Mateo San Francisco Watershed Reserve, south boundary. Comment
  CAS-BOT-BC264242  Melica torreyana Dean Wm. Taylor 1988-4-8 9512 San Mateo Northern slope of southeast ridge of the mountain near the ridgecrest (San Francisco South 7 1/2 U.S.G.S quadrangle, right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain, San Bruno Mountain 237 Comment
  CAS-BOT-BC264243  Melica torreyana Elizabeth McClintock 1965-3-14 s.n. San Mateo Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC264244  Melica torreyana Phillip C. Wheeler 1965-5-18 s.n. San Mateo Near base of mountain at Olivet Cemetery, San Bruno Mountain Comment
  CAS-BOT-BC264246  Melica torreyana John H. Thomas 1965-4-29 10620 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH2180  Melilotus albus John H. Thomas 1976-10-16 18418 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
  POM16744  Melilotus indicus A. D. E. Elmer 1903-06 4278 San Mateo Crystal Springs Lake. Comment
  UC2049893  Melilotus indicus H. W. Johansen 1955-4-23 80 San Mateo Crystal Springs Road, 2 miles W of San Mateo Comment
  JROH2829  Mentha X piperita Ruth Porter 1997-11-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing Comment
  CDA20054  Mentha pulegium L. Kuwahara 2002-10-9 PDR 064652 San Mateo San Francisco Bay Area; Along dam of reservoir at Pomponio Ranch, 3300 Pomponio Crk Rd, San Gregorio. 0 Comment
  CDA4873  Mercurialis annua T. C. Fuller 1960-6-23 4542 San Mateo East fence line, Sanchez Adobe House, south side Linda Mar Boulevard, Pedro Valley. 0 Comment
  UC1778594  Mercurialis annua T. C. Fuller 1960-6-23 4542 San Mateo East fence line, Sanchez Adobe House, S side of Linda Mar Blvd., Pedro Valley. Comment
  RSA34832  Mercurialis annua I. L. Wiggins 1945-9-22 11194 San Mateo Cultivated fields in Pedro Valley, inland from Pedro Point. Comment
  CAS-BOT-BC438141  Mesembryanthemum nodiflorum Malcom A. Nobs; S. Galen Smith 1949-8-27 1623 San Mateo East of Redwood City Comment
  RSA292406  Micropus californicus Lyman Benson 1935-5-5 6539 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  JROH1130  Micropus californicus var. californicus John Hunter Thomas 1986-5-6 24003 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB17192  Micropus californicus var. californicus Schulte, John 1963-4-26 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mounatins 152 Comment
  HSC77531  Microseris bigelovii K. L. Chambers 1984-6-14 5141 San Mateo Pescadero Beach State Park, just S of mouth of Pescadero Creek, Hwy. 1 Comment
  JEPS36153  Microseris douglasii subsp. douglasii J. Burtt Davy 1893-6-17 797 San Mateo Belmont Comment
  JROH1147  Microseris douglasii subsp. douglasii John Hunter Thomas 1986-5-6 24014 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM53405  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 755 San Mateo Woodside. Comment
  POM87985  Microseris douglasii subsp. tenella L. R. Abrams 1902-5-4 2425 San Mateo Woodside- Serpentine Hills Comment
  CAS-BOT-BC349140  Microseris douglasii subsp. tenella Kenton L. Chambers 1953-5-5 457 San Mateo Bayshore Hwy., 1.5 mi. n. of Dumbarton Bridge Road intersection Comment
  JROH4070  Mimulus aurantiacus var. aurantiacus W. R. Dudley 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Ridge near Searsville Dam Comment
  JROH4071  Mimulus aurantiacus var. aurantiacus Richard L. Garber 1971-5-18 21 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  POM5152  Mimulus cardinalis A. D. E. Elmer 1903-07 4941 San Mateo Lake San Andreas. Comment
  UC567220  Mimulus guttatus H. S. Yates 1935-5-7 5217 San Mateo 2 mi s Pescadero; Santa Cruz Quadrangle 60 Comment
  JEPS22487  Minuartia douglasii C. E. Durrell 1909-4-21 San Mateo Burlingame Comment
  RSA10142  Minuartia douglasii G. Oberlander 1950-4-22 750 San Mateo Sawyer Ridge, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC7363  Monardella franciscana Adolph Daniel Edward Elmer 1903-7-1 4766 San Mateo San Pedro Comment
  RSA63116  Monardella purpurea L. S. Rose 1950-5-20 50135 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  CAS-BOT-BC214070  Monardella villosa Charles Piper Smith 1908-5-31 1444 San Mateo San Mateo Canyon Comment
  CAS-BOT-BC214177  Monardella villosa Ned Cahill 1974-7-14 357 San Mateo Near the interesection of Canada and Edgewood Roads about 3 mi westward from Redwood City Comment
  CAS-BOT-BC214178  Monardella villosa Ned Cahill 1974-4-29 209 San Mateo Near the interesection of Canada and Edgewood Roads about 3 mi westward from Redwood City Comment
  RSA18453  Monardella villosa Carl B. Wolf 1927-6-29 554 San Mateo South of Pebble Beach near Pescadero. Comment
  CAS-BOT-BC214081  Monardella villosa Cherie Wetzel 1969-7-8 920 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  UCD125292  Monardella villosa J. M Tucker 1951-8-6 2219 San Mateo On northwest-facing hillslope; M. R. Mattei ranch, ca. 1.5 miles northeast of Pescadero. Comment
  RSA184635  Monardella villosa subsp. franciscana Clare B. Hardham 13067 -A San Mateo San Bruno Hills Comment
  SEINET10582382  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 185 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  JROH2836  Monardella villosa subsp. villosa John H. Thomas 1971-5-30 15958 San Mateo Jasper Ridge Biological Preserve, Stanford University; along trail below dam Comment
  UC104640  Monardella villosa subsp. villosa Katharine Brandegee 1905-6-20 San Mateo Near Lake Pilarcitos Comment
  JROH2834  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-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-BC444954  Montia fontana George Oberlander 1950-4-16 632 San Mateo San Francisco Watershed Reserve. Below San Andreas Dam Comment
  UC1206482  Muilla maritima Le Roy Abrams 1902-4-13 2330 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC508581  Muilla maritima Cynthia Steele 1948-4-18 34 San Mateo Redwood City Comment
  CAS-BOT-BC515667  Muscari botryoides J. H. Thomas 1960-3-30 8560 San Mateo San Francisco Creek near El Camino, Menlo Park. Comment
  JROH1399  Myosotis latifolia John Rawlings 2007-4-1 0986 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2, 500 yards east of Zoology Cabin site. 69 Comment
  RSA18326  Myrica californica Carl B. Wolf 1929-5-10 3709 San Mateo Coast at Pigeon Pt. South of Pescadero. Comment
  JROH2700  Myriophyllum aquaticum John Hunter Thomas 1989-6-6 24758 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2693  Myriophyllum aquaticum John Hunter Thomas 1977-6-16 18782 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2701  Myriophyllum aquaticum M. Whitley 1990-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By the floats in Searsville Lake. Comment
  UCSB4544  Myriophyllum spicatum McPherson, D. 1960-08 San Mateo Felt Lake; Stanford University foothills Comment
  CAS-BOT-BC260240  Nassella pulchra Javier Penalosa 1963-3-30 2713 San Mateo San Bruno Mountain. N of Randolph Drive at Hillside Boulevard in South San Francisco 91 Comment
  SBBG115413  Nassella pulchra B. Crampton 1962-6-11 6486 San Mateo ca. 5 mi W of Belmont, at jct of Ralston Ave and Skyline Blvd, Pulgas Ridge, along E side of lower Crystal Springs Reservoir Comment
  JROH1572  Nasturtium officinale John Hunter Thomas 1978-7-2 19242 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  SEINET7963123 Image available Navarretia heterodoxa L. S. Rose 1941-1 41269 San Mateo West of Redwood City, Emerald Lake 120 Comment
  JROH3209  Navarretia squarrosa John H. Thomas 1973-6-10 16815 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC125564  Navarretia squarrosa C. F. Baker 1903-6-30 3360 San Mateo Pilarcitos; ; Pilarcitos, San Mateo Co. Comment
  UC570261  Navarretia squarrosa N. K. Carlson 1935-6-29 106 San Mateo 1 mi s Pescadero; Santa Cruz Quad. 91 Comment
  SD38781  Navarretia squarrosa Edith A. Purer 1933-8-4 5413 San Mateo Flat area near Baden Station Comment
  UC606949  Nemophila parviflora L. Constance 1938-5-16 2241 San Mateo 5 mi sw San Mateo (near Crystal Springs Lake); sw of San Mateo, near Crystal Springs Lake 121 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
  SJSU5388  Nymphaea odorata R. A. Pattison 1970-5-16 San Mateo pond in Los Trancos Woods 6 mi SW of Stanford University Comment
  CAS-BOT-BC140429  Oemleria cerasiformis H. L. Mason 1921-7-14 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC140433  Oemleria cerasiformis Elizabeth McClintock 1965-3-14 s.n. San Mateo Cable Ravine, San Bruno Mt. Comment
  CAS-BOT-BC140434  Oemleria cerasiformis Javier Penalosa 1963-3-9 2701 San Mateo Ravine 1/2 mi. east of 1314ft. summit. 304 Comment
  CAS-BOT-BC140435  Oemleria cerasiformis Walter Knight; Irja Knight 1965-4-4 1011 San Mateo Bitter Cherry Ravine Comment
  UC860380  Oemleria cerasiformis Lewis S. Rose 1941-3-12 40123 San Mateo w of San Bruno (Skyline Blvd) 152 Comment
  POM132876  Oenanthe sarmentosa A. D. E. Elmer 1903-07 4690 San Mateo Alpine School House. Comment
  UCD127754  Oenanthe sarmentosa Collector unknown 1924-1 s.n. San Mateo La Honda. Comment
  CHSC57090  Oenothera elata subsp. hookeri Steven Triano 1988-5-24 209 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  HSC23991  Oenothera elata subsp. hookeri Mary Katherine Wicksten 1971-6-27 125 San Mateo Princeton, by Hwy. 1 Comment
  JEPS126148  Orobanche californica subsp. californica Alison Colwell with A. Sanders 2004-7-24 04 -196 San Mateo Shelter Cove, near Pacifica Comment
  POM190455  Orthocarpus floribundus D. D. Keck 1932-5-6 1471 San Mateo One mile south of San Mateo, on US Hwy 101. Comment
  POM15668  Orthocarpus lithospermoides A. D. E. Elmer 1903-06 4420 San Mateo Crystal Springs Lake. Comment
  RSA184904  Orthocarpus pusillus L. S. Rose 1965-3-25 65011 San Mateo San Bruno Mountains, north end. 122 Comment
  JROH294  Osmorhiza berteroi John H. Thomas 1963-6-23 10168 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  POM139481  Oxalis oregana C. F. Baker 1902-3-18 325 San Mateo King's Mountain Comment
  UC571122  Oxalis oregana Lucile Roush March 1928 San Mateo Butano creek Santa Cruz Mtns Comment
Read comments
Sep 6 2011
  RSA130344  Oxalis oregana W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula: Redwoods beyond Kings, Santa Cruz Range Comment
  SEINET10870216  Oxalis oregana R. D. Sage 1992-1-6 Sage 13395 -2 San Mateo Collected along purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  JEPS71261  Parapholis incurva A. L. Hormay 1932-5-29 San Mateo San Bruno; San Francisco Bay Shore Comment
  UC1101574  Parapholis incurva Malcolm A. Nobs and S. Galen Smith 1949-8-24 1566 San Mateo marshes at Sharp Park; marshes at Sharp Park Comment
  UCSC000079  Parapholis incurva A. Hormay 1932-5-29 16 San Mateo San Bruno 0 Comment
  CAS-BOT-BC265661  Paspalum distichum A. D. E. Elmer 1901-7-1 2876 San Mateo Searsville Comment
  JROH1400  Pectocarya pusilla J. I. McMurphy 1911-5-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1401  Pectocarya pusilla L. Roush & G. Kimber 1918-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4101  Pedicularis densiflora John H. Thomas 1957-4-16 6663 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH4113  Pedicularis densiflora John H. Thomas 1974-4-13 17150 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA401968B  Pedicularis densiflora A. C. Life 1924-2-22 14599 San Mateo Kings Mt. Redwood Park. Huckleberry trail. Comment
  RSA125136  Pedicularis dudleyi E. F. Sprague 1957-5-26 1703 San Mateo Portola State Park, about campground headquarters 305 Comment
Read comments
Mar 2 2010
  UC729633  Pelargonium vitifolium Carl B. Wolf 1929-5-10 3704 San Mateo s of Pescadero (Pigeon Pt); Pigeon Pt. 30 Comment
  CAS-BOT-BC265731  Pennisetum villosum John H. Thomas 1969-6-6 15517 San Mateo Menlo Park, near El Camino and Cambridge Comment
  UC197089  Pentachaeta alsinoides E. L. Greene 1886-5-9 San Mateo Belmont Comment
  CAS-BOT-BC423362  Peritoma serrulata Mrs. Brandegee No date on label s.n. San Mateo Montera [Montara] Comment
  CAS-BOT-BC413610  Persicaria amphibia W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Hooper's Pond, Woodside Comment
  JROH3279  Persicaria maculosa Toni Corelli 2004-10-20 281 a San Mateo Jasper Ridge Biological Preserve, Stanford University; below low flow crossing along Road C, on a moist embankment 79 Comment
  CDA8458  Petasites frigidus var. palmatus T. C. Fuller 1960-4-2 4084 San Mateo Alpine Road, 0.8 mile east of Pescadero Road, 2.8 miles southeast of La Honda. 0 Comment
  JEPS23907  Petunia parviflora Le Roy Abrams 1902-9-2 2994 San Mateo Crystal Springs Comment
  UC1301150  Phacelia californica Helen K. Sharsmith 1963-2-16 5141 San Mateo lower slopes of mt. above Daly City; San Francisco Bay Region, San Bruno Mountain 106 Comment
  JEPS2263  Phacelia ciliata var. ciliata Inez Ray Smith 1919-3-25 San Mateo Burlingame Comment
  JEPS3114  Phacelia divaricata James G. Daly 1934-1 156 San Mateo on ridge s road to La Honda; Santa Cruz Mountains Comment
  UC909979  Phacelia nemoralis subsp. nemoralis Lewis S. Rose 1939-6-16 39281 San Mateo Skyline Blvd. above Woodside 563 Comment
  JROH5652  Phacelia rattanii John Rawlings 2014-6-10 1257 San Mateo Jasper Ridge Biological Preserve, Stanford University. Northeast side of prominent rock outcrop at southeast end of Searsville Lake near Rd. E 111 Comment
  CAS-BOT-BC258931  Phalaris aquatica John Thomas Howell 1954-7-8 30009 San Mateo Skyline Blvd. above San Bruno Comment
  JROH5357  Phalaris aquatica John Hunter Thomas 1978-7-14 19261 San Mateo Jasper Ridge Biological Preserve, Stanford University. New low flow crossing of San Francisquito Creek. Comment
  RSA118050  Phalaris aquatica J. T. Howell 1954-7-8 30009 San Mateo Skyline Blvd. above (west of) San Bruno Comment
  JROH5643  Phalaris brachystachys John Rawlings 2014-6-7 1263 San Mateo Jasper Ridge Biological Preserve, Stanford University; 100 yards west from Escobar Gate, 20 yards north of Road F 161 Comment
  CAS-BOT-BC258998  Phalaris californica Beecher Crampton 1962-6-11 6487 San Mateo 5 miles west Belmont, Ralston Ave and Skyline Blvd. Comment
  UCD88577  Phalaris californica P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  JROH5382  Phalaris lemmonii John Hunter Thomas 1970-4-29 15613 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2768  Pholistoma auritum var. auritum John Hunter Thomas 1981-5-5 20540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38530  Pholistoma auritum var. auritum Marie Cummings 1933-4-24 3729 San Mateo San Francisquito Creek, San Mateo and Santa Clara Cos. Comment
  UC1974571  Phyllospadix torreyi Kristen Kusic 2002-11-21 San Mateo Pigeon Point Comment
  SD37696  Physocarpus capitatus Janet Turner 1933-5-15 3667 San Mateo Alpine Creek Rd. Comment
  UC860427  Physocarpus capitatus Lewis S. Rose 1939-5-5 39093 San Mateo San Mateo Canyon 45 Comment
  SEINET3819247 Image available Physocarpus capitatus Lewis S. Rose 1939-5-5 39093 San Mateo San Mateo Canyon. 46 Comment
  CAS-BOT-BC136530  Piperia candida W. R. Dudley 1905-6-18 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  UC1371043  Piperia elegans Theodore F. Niehaus 1968-8-14 836 San Mateo ne slopes San Bruno Mountain Comment
  CAS-BOT-BC137311  Piperia elegans James McMurphy 1906-8-24 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  RSA18516  Piperia transversa Carl B. Wolf 1927-7-14 603 San Mateo Summit of Kings Mountain Rd. Comment
  UCSC008616  Piperia transversa Randall Morgan 1989-1-1 322 -P San Mateo Jamison Creek Road Comment
  CAS-BOT-BC254388  Piptatherum miliaceum Ira L. Wiggins 1980-8-29 22256 San Mateo Lower bank of San Francisquito Creek, ca. 150 m upstream from Pope Street bridge, Menlo Park Comment
  UC579690  Plagiobothrys chorisianus H. S. Yates 1935-5-8 5216 San Mateo 2 mi s Pescadero; Santa Cruz Quad. 60 Comment
  CAS-BOT-BC228130  Plagiobothrys chorisianus Walter & Irja Knight 1965-3-21 946 San Mateo San Bruno Mountains. North Power Line Ridge Comment
  CAS-BOT-BC228167  Plagiobothrys chorisianus var. chorisianus J. I. McMurphy 1906-5-8 s.n. San Mateo The Santa Cruz Mountain Peninsula. Pond by road between Woodside and Byrne's Store Comment
  JEPS85242  Plagiobothrys chorisianus var. chorisianus Roy E. Buck and James A. West 1985-6-3 535 San Mateo just s unnamed sw-draining creek N of Cascade Creek (ca 2.2 air km e of Whitehouse Canyon Rd-CA Hwy 1 jct, 3.8 air km e of Franklin Point); Cascade Ranch 67 Comment
  JROH1413  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1971-4-25 15781 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1425  Plagiobothrys nothofulvus John H. Thomas 1970-4-4 15542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS61087  Plagiobothrys undulatus Jos. B. Davy Jun 21 1893-Jun 23 1893 1136 San Mateo Pilarcitos Lake Comment
  UCSC003378  Plantago elongata Randall Morgan 2001-5-5 3725 San Mateo south of Franklin Point, San Mateo County Comment
  JROH3109  Plantago erecta John H. Thomas 1957-4-16 6656 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  POM61501  Plantago erecta A. D. E. Elmer 1903-04 4795 San Mateo San Bruno Hills. Comment
  JROH5932  Plantago erecta L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of Jasper Ridge Comment
  RSA278542  Plantago erecta subsp. erecta T. C. Emmel 1965-4-4 32 San Mateo San Bruno Hills, above Daly City and Brisbane. Comment
  RSA246718  Plantago hirtella var. galeottiana Robert F. Thorne, Percy C. Everett 1965-8-1 35073 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  RSA101047  Plantago lanceolata G. Oberlander 1949-4-30 116 San Mateo San Andreas Lake, San Francisco Watershed Reserve. Comment
  JROH3130  Plantago lanceolata John H. Thomas 1971-4-3 15743 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  JROH3131  Plantago major James McMurphy 1906-8-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JEPS7154  Plantago maritima var. californica James G. Daly 1934-1 478 San Mateo mouth of San Gregorio Creek San Gregorio Creek Comment
  JEPS4905  Plantago subnuda G. Thomas Robbins 1953-8-29 3616 San Mateo 1.5-2.0 mi s San Francisco City and County line (along State Highway 1) Comment
  UCD164004  Plantago subnuda Peter Rubtzoff 1977-11-24 9142 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon near upper rim. Comment
  SD27817  Platanthera dilatata var. leucostachys Carl B. Wolf 1929-5-25 3728 San Mateo Pebble Beach, south of Pescadero. Comment
  CAS-BOT-BC92013  Platystemon californicus A. D. E. Elmer 1903-6-1 4853 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC92024  Platystemon californicus Phillip Wheeler 1965-3-30 s.n. San Mateo San Bruno Mountain. Wheeler's Canyon. Comment
  RSA6413  Platystemon californicus var. californicus D. D. Keck 1932-5-6 1473 San Mateo Burlingame. Comment
  JROH4248  Plectritis ciliosa Carol Zabel 2006-4-24 58 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dirt trail up slope towards global change area, across from big parking area. Comment
  RSA128836  Plectritis macrocera L. R. Abrams 1904-4-10 s.n. San Mateo On road from Woodside to Crystal Springs. The Santa Cruz Mtn Peninsula. Comment
  NY278707  Plectritis nitida A. A. Heller 1907-5-28 8578 San Mateo Above Crystal Springs on the Half Moon Bay road 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
  UCD92187  Poa August L. Hormay 1932-5-29 s.n. San Mateo San Bruno to San Francisco Bay Shore Highway. Comment
  JROH5395  Poa annua John H. Thomas 1963-4-17 10036 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the "riders shack" at the Searsville end of the ridge. Comment
  CAS-BOT-BC246712  Poa howellii W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Ravine north of Seal Cove Comment
  JROH5777  Poa howellii John Rawlings 2016-4-16 1702 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the first footbridge on Trail 12 near the old quarries. 108 Comment
  UC1190036  Poa howellii Roxana S. Ferris 1921-3-20 2175 San Mateo road from Alpine Creek to Pescadero Creek; Santa Cruz Mt Peninsula 396 Comment
  CAS-BOT-BC247422  Poa pratensis Phillip C. Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. No. West Radio Road Comment
  CAS-BOT-BC247423  Poa pratensis George Oberlander 1950-5-6 880 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  CAS-BOT-BC247424  Poa pratensis W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of hill at Sneath's Ranch, near Millbrae Comment
  POM204533  Poa secunda Le Roy Abrams 1901-03 1162 San Mateo Menlo Park- reservoir. Comment
  POM204948  Poa secunda E. B. Copeland 1903-4-20 1920 San Mateo San Andreas Lake Comment
  RSA120384  Poa secunda Roxana S. Ferris 1921-5-20 2174 San Mateo Santa Cruz Mountain Peninsula; road over divide from Alpine Creek and Pescadero Creek 305 Comment
  CAS-BOT-BC243120  Poa secunda subsp. secunda W. R. Dudley 1900-3-16 s.n. San Mateo By Redwood stage road Comment
  JROH5676  Poa secunda subsp. secunda John Rawlings 2015-3-15 1459 San Mateo Jasper Ridge Biological Preserve, Stanford University; east serpentine near Escobar Gate. 160 Comment
  SEINET10954075  Poa trivialis P. Rubtzoff 1977-6-7 Rubtzoff 9030 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UC1190034  Poa unilateralis H. L. Mason 1921-5-28 San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC110697  Poaceae J. H. Thomas 1962-4-6 9907 San Mateo Near Palo Alto airport. Comment
  CAS-BOT-BC474768  Pogogyne serpylloides Robert E. Preston 2011-6-16 2865 San Mateo Santa Cruz Mountains. Oil Creek watershed, 1.8 mi NW of Waterman Gap 268 Comment
  RSA0022156  Pogogyne serpylloides John H. Thomas 1966-4-29 11588 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  UC882706  Polemonium carneum L. R. Abrams 1916-4-22 5576 San Mateo Pilarcito Canyon Santa Cruz Mountain Peninsula, Pilarcito Canyon Comment
  RSA120735  Polygala californica S. S. Tillett, I. Sternback 1956-6-24 531 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  UCR66525  Polygonum amphibium Lyman Benson 1932-7-11 3930 San Mateo Santa Cruz Range, Stanford University. San Francisquito Creek. 62 Comment
  UC1192322  Polygonum amphibium var. emersum Malcolm A. Nobs and S. Galen Smith 1949-8-26 1603 San Mateo along Hwy 1 0,.6 mi n Pigeon Point Comment
  UC1543013  Polygonum amphibium var. emersum Donald G. Nelson 1939-6-14 616 San Mateo e side of Skyline Blvd. a few mi s Daly City (large permanent pond) Comment
  CAS-BOT-BC166771  Polygonum arenastrum Peter Rubtzoff 1977-4-16 8953 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC389685  Polygonum aviculare Jeanie Nieri 1953-2-3 23 San Mateo Growing three miles west of Hillsdale Comment
  JEPS81639  Polygonum aviculare subsp. aviculare J. C. Hickman 1981-7-21 1005 San Mateo Ano Nuevo Reserve; se edge Comment
  UC1192341  Polygonum aviculare subsp. aviculare Malcolm A. Nobs and S. Galen Smith 1949-8-27 1618 San Mateo salt marshes e Redwood City Comment
  JROH3267  Polygonum aviculare subsp. depressum John Hunter Thomas 1992-5-26 25356 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  POM192783  Polygonum lapathifolium W. R. Dudley 1909-10-31 s.n. San Mateo Searsville Lake. The Santa Cruz Mtn Peninsula. Comment
  CAS-BOT-BC109241  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach south of Pescadero. Comment
  RSA18362  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach, S of Pescadero Comment
  UCR240610  Polygonum paronychia T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3526 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
  UC42880  Polypodium calirhiza McLean 1873-1 San Mateo Pescadero Comment
  CAS-BOT-BC76805  Polypodium glycyrrhiza W. R. Dudley 1898-3-5 s.n. San Mateo Santa Cruz Peninsula - King's Mountain Comment
  SJSU10491  Polypodium scouleri S. H. Casey 1969-5-18 248 San Mateo Fern Rock, San Bruno Mt. Comment
  CAS-BOT-BC233157  Polypogon interruptus A. D. E. Elmer 1903-7-1 4694 San Mateo Pilarcitos Stone Dam Comment
  JROH5429  Polypogon interruptus John H. Thomas 1961-6-14 9545 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along stream below dam. Comment
  JROH5435  Polypogon interruptus John Hunter Thomas 1983-5-23 22247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Roadside drainage near shack side & low-flow crossing. Comment
  JROH5436  Polypogon interruptus W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito creek -- above low-flow causeway on left, under trees in rocks. 81 Comment
  SJSU15799  Polypogon interruptus Toni Corelli 2010-6-4 679 San Mateo Cowell Ranch Beach 33 Comment
  SJSU15938  Polypogon interruptus John Rawlings, Ken Hickman 2016-5-26 1809 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC237341  Polypogon monspeliensis Phillip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Crocker Industrial Park Comment
  JROH5457  Polypogon monspeliensis W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By San Francisquito creek, to left of Whiskey Hill (low-flow) causeway. Comment
  UCD18537  Polypogon monspeliensis Roman Gankin 1950-7-2 5 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  JROH4816  Polypogon viridis John Hunter Thomas 1982-7-2 21050 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  SJSU4367  Polypogon viridis A. J. Cortopassi 1957-5-17 8 San Mateo Canyon Rd, Burlingame Comment
  RSA0034024  Polystichum Peter Rubtzoff 1987-8-26 9844 San Mateo San Bruno Mountain, East Fork of Colma Creek Canyon. Comment
  CAS-BOT-BC72151  Polystichum californicum W. R. Dudley 1905-6-19 s.n. San Mateo near Camp on Pescadero Creek, Santa Cruz Mountains Comment
  CAS-BOT-BC72228  Polystichum dudleyi Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  UC150382  Polystichum munitum C. F. Baker 1902-1-15 321 San Mateo w side King's Mt. Comment
  CAS-BOT-BC166964  Polystichum munitum Peter Rubtzoff 1976-10-5 8905 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC384614  Polystichum munitum M. K. Wicksten 1991-7-8 s.n. San Mateo Huddart PRK Comment
  POM217107  Polystichum munitum D. D. Keck 1932-2-12 1360 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 305 Comment
  RSA0016813  Polystichum munitum B. J. Hoshizaki 1991-10-4 91 -4 [A] San Mateo Along road between Yerba Buena Nursery and Langly Hill Quarry. Woodside Ranch, 19500 Skyline Blvd., Redwood City. Comment
  RSA30864  Polystichum munitum Roxana S. Ferris 1921-3-20 2111 San Mateo Pescadero Creek Canyon, 6 mi above Pescadero. Comment
  CAS-BOT-BC445246  Portulaca oleracea Fay Gilbert 1920-6-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Redwood City Comment
  JROH5844  Potamogeton crispus P. Heiple, A. Lambrecht 2008-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  CAS-BOT-BC267167  Potamogeton foliosus H. L. Mason 1921-5-28 s.n. San Mateo Lagoon back of Near Years Pl Comment
  POM226863  Potamogeton foliosus I. L. Wiggins 1935-8-24 8159 A San Mateo In reservoir about 2 miles east of Half Moon Bay. Comment
  CAS-BOT-BC257679  Potamogeton illinoensis Peter Rubtzoff 1965-10-19 5664 San Mateo Pilarcitos Lake. Comment
  CAS-BOT-BC453734  Potamogeton illinoensis George Oberlander 1949-8-20 386 San Mateo San Francisco Watershed Reserve. San Andreas Lake Comment
  CAS-BOT-BC453735  Potamogeton illinoensis Peter C. Ting, Jr. 1939-8-28 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC453736  Potamogeton illinoensis Charles W. O'Brien 1964-8-31 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC453832  Potamogeton nodosus V. F. Hesse 1961-8-24 3020 San Mateo About 4 miles south of Pescadero 60 Comment
  CAS-BOT-BC453835  Potamogeton nodosus L. R. Abrams; I. L. Wiggins 1939-6-3 435 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC453836  Potamogeton nodosus Ira L. Wiggins; Roxana S. Ferris 1939-8-2 9292 San Mateo Ano [Ano] Nuevo Point Comment
  SEINET10946049  Potamogeton nodosus Herbert L. Mason 1921-5-28 Mason s.n. San Mateo Lagoon back of New Years Pt. Comment
  UC279592  Potamogeton nodosus W. A. Setchell, C. B. Setchell, H. E. Parks 1925-8-29 San Mateo Comment
  CAS-BOT-BC453997  Potamogeton pectinatus Charles W. O'Brien 1964-8-31 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC454010  Potamogeton pectinatus Ira L. Wiggins 1935-6-29 8051 San Mateo Pescadero Creek, about 1 mile west of Pescadero Comment
  CAS-BOT-BC454051  Potamogeton pusillus subsp. pusillus Peter C. Ting, Jr. 1939-8-28 s.n. San Mateo Lake Pilarcitos Comment
  CHSC39829  Potentilla anserina subsp. pacifica Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  UC1128137  Potentilla anserina subsp. pacifica H. S. Yates 1935-5-8 5221 San Mateo 2 mi sw Pescadero; Santa Cruz Quad. Comment
  CAS-BOT-BC143304  Potentilla hickmanii Mrs. E. C. Sutliffe 1933-3-10 s.n. San Mateo Moss Beach Comment
  JROH4670  Prosartes hookeri John H. Thomas 1967-4-28 12728 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD139791  Prosartes hookeri Janet Jacob 1951-4-1 53 San Mateo 7 miles east of Pescadero. Comment
  CAS-BOT-BC516348  Prosartes hookeri J. H. Thomas 1949-4-14 269 San Mateo Kings Mountain Comment
  CAS-BOT-BC516351  Prosartes hookeri M. N. Paulson 1915-4-1 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-BC517399  Prosartes smithii A. D. E. Elmer 1903-5-1 4697 San Mateo Butano Creek Comment
  CDA40755  Prunella vulgaris subsp. vulgaris Villegas & France 1972-8-7 PDR # 37028 San Mateo 415 Cypress Avenue, Millbrae. 0 Comment
  JROH3751  Prunus John Hunter Thomas 1981-4-5 20290 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  CAS-BOT-BC159841  Prunus cerasifera Paul Reeberg 1988-5-17 s.n. San Mateo San Bruno Mountains Comment
  CAS-BOT-BC158171  Prunus emarginata Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Bitter-cherry [Bitter Cherry] Ridge Comment
  CAS-BOT-BC154495  Prunus ilicifolia Josephine D. Randall 1907-6-6 328 San Mateo Los Trancos Road near Stanford University Comment
  CAS-BOT-BC154496  Prunus ilicifolia Margaret A. Barry 1937-6-24 186 San Mateo North slope on Los Trancos Creek on Coal Mine Ridge Comment
  UC12764  Prunus ilicifolia J. Burtt Davy 1893-6-23 832 San Mateo Pilarcitos Canyon Comment
  JROH3746  Prunus ilicifolia subsp. ilicifolia John Hunter Thomas 1978-7-2 19246 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC154657  Prunus subcordata W. R. Dudley 1904-4-10 s.n. San Mateo Alpine road, near the deep ravine bridge Comment
  CAS-BOT-BC154658  Prunus subcordata W. R. Dudley 1903-4-10 s.n. San Mateo N. of Dominico's Canyon E. of Searsville Reservoir Comment
  JROH3750  Prunus virginiana var. demissa Toni Corelli 2006-8-9 319 San Mateo Jasper Ridge Biological Preserve, Stanford University; down slope along fire Road E, above deep inlet 109 Comment
  CAS-BOT-BC356871  Pseudognaphalium californicum D. E. Breedlove 1974-5-13 36234 San Mateo Slopes San Pedro Valley Park, Pacifica 152 Comment
  JROH757  Pseudognaphalium californicum John H. Thomas 1967-5-10 12851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306671  Pseudognaphalium californicum A. D. E. Elmer 1903-6-1 4291 San Mateo Crystal Springs Lake Comment
  SD30773  Pseudognaphalium luteoalbum Edith A. Purer 1933-8-13 5427 San Mateo Belmont, along roadside Comment
  SJSU16004  Pseudognaphalium luteoalbum John Rawlings, Ken Hickman 2016-7-21 1950 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
  UC577203  Pseudognaphalium luteoalbum John Thomas Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  SBBG45073  Pseudognaphalium luteoalbum L. S. Rose 1936-2-12 San Mateo Burlingame 91 Comment
  SDSU3737  Pseudognaphalium microcephalum D. F. Howe 1964-8-13 3958 San Mateo Near ocean on #1; near San Francisco Co. line. Comment
  CAS-BOT-BC357511  Pseudognaphalium ramosissimum Robert S. Cox, Jr. 1946-8-7 s.n. San Mateo Near Pescadero 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-BC357508  Pseudognaphalium ramosissimum Janet Jones 1978-8-28 s.n. San Mateo Near Montara Comment
  CAS-BOT-BC344869  Pseudognaphalium stramineum Peter Rubtzoff 1975-11-8 8438 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC361570  Pseudognaphalium stramineum L. R. Abrams; I. L. Wiggins 1939-6-3 428 San Mateo Ano Nuevo Point Comment
  SD39789  Pseudognaphalium stramineum Edith A. Purer 1933-7-27 5359 San Mateo Pigeon Point Comment
  SJSU7541  Pseudognaphalium stramineum L. S. Rose 1966-8-6 66079 San Mateo Colma Canyon, San Bruno Mt 121 Comment
  CAS-BOT-BC85914  Pseudotsuga menziesii Miss O. Boring 1897-8-31 s.n. San Mateo Santa Cruz Peninsula, King's Mt. Comment
  NY63873  Pseudotsuga menziesii var. menziesii L. S. Rose 1955-9-19 55178 San Mateo Skyline Boulevard, 7 miles west of Saratoga 685.8 Comment
  CAS-BOT-BC362031  Psilocarphus tenellus Peter Rubtzoff 1953-5-14 1352 San Mateo Pilarcitos Creek canyon 1 to 2 miles downstream from Pilarcitos Lake Comment
  JROH1183  Psilocarphus tenellus D. E. Breedlove 1971-5-5 19326 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Francisquito Creek, 500 yards below Searsville Dam Comment
  JROH1191  Psilocarphus tenellus John Hunter Thomas 1984-4-12 23290 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC72661  Pteridium aquilinum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Wax Myrtle Ravine, Six-fern Rock Comment
  CAS-BOT-BC104277  Quercus X morehus W. R. Dudley 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula, Goat Ranch Road near Alpine Road - Black Mt. Comment
  CAS-BOT-BC104278  Quercus X morehus W. R. Dudley 1910-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula, In a hollow W of the ridge road S of Muchados on the top of the Santa Cruz Mt., Marin Divide Comment
  CAS-BOT-BC104410  Quercus X subconvexa Lewis S. Rose 1964-9-5 64069 San Mateo Emerald Lake, W of Redwood City 243 Comment
  JEPS121496  Quercus agrifolia var. agrifolia Adam C. Schneider with C. Matt Guilliams 2013-4-7 105 San Mateo Crystal Springs Reservoir Comment
  JROH2465  Quercus berberidifolia John Rawlings 2007-12-19 0929 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 10 yards northeast of Rd. F in blue oak woodland west of Area C serpentine 178 Comment
  JROH2466  Quercus berberidifolia John Rawlings 2007-12-26 1065 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few yards uphill of Trail I in serpentine woodland below lost serpentine prairie 85 Comment
  JROH5803  Quercus douglasii John Rawlings, Bill Gomez 2016-7-28 1911 A San Mateo Jasper Ridge Biological Preserve, Stanford University; north side Rd F in blue oak woodland west of serpentine prairie 182 Comment
  CAS-BOT-BC94271  Quercus durata Ned Cahill 1974-4-19 143 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC94281  Quercus durata James McMurphy 1907-8-6 s.n. San Mateo between Woodside and Crystal Springs Comment
  JROH2489  Quercus durata var. durata John H. Thomas 1975-5-2 17851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105399  Quercus kelloggii J. I. McMurphy 1904-3-7 48 San Mateo Santa Cruz Mountain Peninsula. Foothills near Woodside Comment
  JEPS48850  Quercus kelloggii James G. Daly 1934-1 545 San Mateo near crossroads of Skyline Blvd. and La Honda road (watershed of San Gregorio Creek); Santa Cruz Mts., San Gregorio Creek Comment
  JROH2504  Quercus kelloggii John Hunter Thomas 1981-2-14 20218 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA118969  Quercus kelloggii John H. Thomas 1955-3-21 4694 San Mateo New La Honda Road between Searsville and Skyline Blvd., 1.8 miles from Searsville. East slope of the Santa Cruz Mountains. 274 Comment
  UCD46742  Quercus kelloggii Edmond W. Holm 1993-11-26 s.n. San Mateo (Q. parvula var. shrevei (Muller) Nixon. California, San Mateo Co,; Huddart Park, near Miwok Picnic Area. Comment
  CAS-BOT-BC62897  Quercus lobata John H. Thomas 1974-4-11 17136 San Mateo SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  JROH2518  Quercus lobata John H. Thomas 1968-4-19 14299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC62890  Quercus lobata W. R. Dudley 1893-11-19 s.n. San Mateo By Alpine road up Black Mt. Comment
  CAS-BOT-BC62896  Quercus lobata George Oberlander 1949-7-30 346 San Mateo Southern boundary Comment
  RSA81914  Quercus parvula var. shrevei E. K. Balls, P. C. Everett 1953-10-16 18681 San Mateo Hwy 5, 30.8 miles southeast of San Francisco-San Mateo county line. 762 Comment
  UCD47185  Quercus parvula var. shrevei Stephen K. Langer 1991-2-18 s.n. San Mateo Butano State Park. 426 Comment
  CAS-BOT-BC134785  Quercus wislizeni James McMurphy 1902-5-17 s.n. San Mateo Road to Kings Mt. Comment
  CAS-BOT-BC134786  Quercus wislizeni James McMurphy 1909-5-26 s.n. San Mateo La Honda Comment
  CAS-BOT-BC134793  Quercus wislizeni H. L. Mason 1929-12-1 s.n. San Mateo Swanton Comment
  CAS-BOT-BC134794  Quercus wislizeni H. L. Mason 1929-12-1 s.n. San Mateo Swanton Comment
  CAS-BOT-BC134782  Quercus wislizeni W. R. Dudley 1903-5-1 s.n. San Mateo Santa Cruz Peninsula. Alpine Road N of Myer's Place Comment
  CAS-BOT-BC134792  Quercus wislizeni J. H. Thomas 1949-11-5 1227 San Mateo Near airstrip along Butano Fire Break 518 Comment
  JROH5828  Quercus wislizeni var. frutescens John Rawlings 2016-12-29 1954 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 120 yards north of Road F opposite its intersection with Trail 17 to Goya Gate 178 Comment
  JROH5864  Quercus wislizeni var. frutescens Toni Corelli 2003-2-21 257 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail c 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
  CAS-BOT-BC362548  Rafinesquia californica Philip C. Wheeler 1965-5-11 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine Comment
  RSA181321  Rafinesquia californica John H. Thomas 1965-5-12 10645 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC362551  Rafinesquia californica W. R. Dudley 1894-4-21 s.n. San Mateo San Mateo Ravine Comment
  RSA18515  Rafinesquia californica C. B. Wolf 1927-7-14 605 San Mateo Summit of Kings Mountain Rd. Comment
  JROH3471  Ranunculus californicus John H. Thomas 1974-4-6 17090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM268414  Ranunculus californicus Lyman Benson 1931-3-15 s.n. San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  JROH3470  Ranunculus californicus John H. Thomas 1968-3-31 14258 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of NE facing slope above Webb Ranch Comment
  RSA15247  Ranunculus californicus Carl B. Wolf 1927-2-19 208 San Mateo Spring Valley, on Belmont to Halfmoon Bay road Comment
  SD80176  Ranunculus californicus R. S. Woglum 1935-5-25 1156 San Mateo San Francisco area, Skyline Drive Comment
  CAS-BOT-BC378529  Ranunculus californicus var. californicus Elizabeth McClintock; Virginia Ryder 1964-2-16 s.n. San Mateo San Bruno Mountain, Guadalupe Road Comment
  CAS-BOT-BC378532  Ranunculus californicus var. californicus Elizabeth McClintock; Virginia Ryder 1964-2-16 s.n. San Mateo San Bruno Mountain, low growing on grassy slope above parking lot at top of mountain Comment
  CAS-BOT-BC378533  Ranunculus californicus var. californicus J. H. Thomas 1959-4-1 209 San Mateo serpentine hills west of Redwood City Comment
  CAS-BOT-BC378534  Ranunculus californicus var. californicus J. H. Thomas 1949-3-29 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC378536  Ranunculus californicus var. californicus Daniel Cohen 1953-4-11 12 San Mateo grassy meadow on north shore of Searsville Lake Comment
  RSA15339  Ranunculus californicus var. cuneatus Carl B. Wolf 1927-1-29 s.n. San Mateo Pebble Beach, along bluffs near Beach Comment
  POM269868  Ranunculus lobbii W. R. Dudley 1904-4-22 s.n. San Mateo Corte Madera Creek along New Grade Road Comment
  RSA101003  Ranunculus lobbii George Oberlander 1950-3-18 s.n. San Mateo Upper Crystal Springs Lake, San Francisco Watershed Reserve Comment
  JEPS85712  Ranunculus pusillus L. R. Heckard and J. H. Thomas 1972-4-16 2890 San Mateo ca 1 1/2 mi s Pulgas Water Temple (along old Canada road (private), sw of Upper Crystal Springs Reservoir) 121 Comment
  JROH3502  Ranunculus uncinatus John Rawlings 2013-4-16 1144 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1. 79 Comment
  JROH5873  Raphanus sativus Ann Lambrecht 2011-7-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Bear Creek crossing near Preserve boundary fence Comment
  UC870785  Rhamnus californica F. A. Parton Apr 1908 San Mateo Jasper Ridge Santa Cruz Mountain Peninsula 91 Comment
  JROH3554  Rhamnus crocea E. H. Richardson 1906-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3555  Rhamnus crocea H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3556  Rhamnus crocea H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA7753  Rhamnus crocea Carl B. Wolf 1927-4-3 283 San Mateo 1/4 mile from Schenkel's Camp, 2 miles back of Stanford Comment
  RSA10390  Rhamnus tomentella subsp. tomentella H. A. Barker 1926-5-15 603 San Mateo King Mt. Comment
  RSA112356  Rhododendron occidentale var. occidentale W. R. Dudley 1895-6-6 San Mateo Pescadero Creek Comment
  CAS-BOT-BC437977  Ribes Alice Eastwood 1922-5-27 11324 San Mateo La Honda Comment
  CAS-BOT-BC437978  Ribes Eric Walther 1920-5-30 s.n. San Mateo Woodside Comment
  JROH2633  Ribes aureum var. gracillimum Carol Zabel 1989-8-7 22 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12 at bridge nearest Mapache Gate. Comment
  RSA15313  Ribes californicum Carl B. Wolf 1927-4-3 284 San Mateo Los Troncos Creek, 2 miles back of Stanford University. Comment
  UC518033  Ribes californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont Comment
  UC974953  Ribes californicum Lewis S. Rose 1937-3-14 37003 San Mateo Belmont 152 Comment
  UC311181  Ribes divaricatum var. pubiflorum A. D. E. Elmer May, 1903 4511 San Mateo Searsville Lake Comment
  CAS-BOT-BC173090  Ribes divaricatum var. pubiflorum W. R. Dudley 1895-2-23 s.n. San Mateo Above last bridge on San Francisquito Cr. near Stanford University Comment
  RSA0021677  Ribes malvaceum G. Oberlander 1949-2-2 5 San Mateo Crest of Sweeney Ridge, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC212817  Ribes menziesii A. D. E. Elmer 1903-4-1 4496 San Mateo Portola Comment
  UC11716  Ribes menziesii J. Burtt Davy Jun 21 1893-Jun 23 1893 1148 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC212818  Ribes menziesii W. R. Dudley 1906-6-12 s.n. San Mateo Back of winery, West Union Gulch Comment
  RSA0021755  Ribes menziesii var. leptosmum D. D. Keck 1932-3-6 1397 San Mateo Near La Honda, Santa Cruz Mountains. 200 Comment
  JROH5605  Ribes menziesii var. menziesii John Rawlings 2014-3-25 1211 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 2 -- one plant upslope and one downslope -- about 400 yards west of Zoology Cabin site. 80 Comment
  CAS-BOT-BC144612  Ribes sanguineum var. glutinosum George Oberlander 1949-4-9 51 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC144649  Ribes sanguineum var. glutinosum W. R. Dudley 1904-3-1 62 San Mateo Corte de Madera Creek, Santa Cruz Mts 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
  JROH2681  Ribes sanguineum var. glutinosum John Hunter Thomas 1982-11-6 21216 San Mateo Jasper Ridge Biological Preserve, Stanford University. On causeway. Comment
  RSA144510  Ricinus communis John H. Thomas 1960-11-11 8925 San Mateo Along Skyline Blvd., 1.1 mile S. of intersection of Skyline Blvd. and Millbrae Avenue. Comment
  SEINET3388620 Image available Rigiopappus leptocladus Lewis S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
  CAS-BOT-BC363089  Rigiopappus leptocladus Lewis S. Rose 1956-5-28 56078 San Mateo Skyline Blvd, w. of San Mateo 182 Comment
  CAS-BOT-BC341024  Robinia pseudoacacia J. H. Thomas 1960-6-8 8774 San Mateo Road bank between Stanford and Searsville Lake along Sand Hill Road Comment
  CAS-BOT-BC341023  Robinia pseudoacacia L. R. Abrams 1922-5-3 s.n. San Mateo Sutliff Garden, Stanford University Comment
  CAS-BOT-BC6011  Romanzoffia californica Charles Fuller Baker 1902-4-6 463 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC74650  Rorippa curvisiliqua W. R. Dudley 1908-6-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Edge of Earthquake Pond east of Jersey Pond west of Baden. Comment
  CAS-BOT-BC74652  Rorippa curvisiliqua George Oberlander 1949-7-30 315 San Mateo San Francisco Watershed Reserve. Along Pilarcitos Creek. Comment
  JROH1578  Rorippa palustris subsp. palustris James McMurphy 1906-8-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  CAS-BOT-BC75025  Rorippa palustris var. hispida C. F. Baker 1902-10-20 1856 San Mateo Searsville. 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
  CAS-BOT-BC146689  Rosa gymnocarpa James McMurphy 1902-5-1 s.n. San Mateo King's Mountain Comment
  CAS-BOT-BC146699  Rosa gymnocarpa Ira L. Wiggins 1925-4-1 1653 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  RSA159405  Rosa gymnocarpa John H. Thomas 1961-5-14 9367 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  UC914720  Rosa gymnocarpa Delzie Demaree 1933-6-23 10386 San Mateo White House Canyon Comment
  JROH3764  Rosa gymnocarpa var. gymnocarpa Toni Corelli 2007-10-31 343 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 1 just before first redwood grove, along north side of trail 80 Comment
  JROH3765  Rosa laevigata Carol Zabel 2004-5-19 51 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 30 feet north of main gate on Sand Hill Road. Comment
  RSA0005651  Rosa piscatoria A. D. E. Elmer 1903-05 4923 San Mateo Iverson's Place; on the Pescadero Creek. Comment
  CAS-BOT-BC156594  Rubus bifrons J. H. Thomas 1963-9-11 10263 A San Mateo San Bruno Mountain. Near intersection of Guadalupe Rd. and South Hill Blvd. Comment
  CAS-BOT-BC152826  Rubus parviflorus G. H. Mallory 1919-8-20 s.n. San Mateo La Honda - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC152873  Rubus parviflorus Mrs. C. H. Thompson 1904-4-23 s.n. San Mateo Goat Ranch Road, near Corte Madera - Santa Cruz Mountain Peninsula 243 Comment
  CAS-BOT-BC152874  Rubus parviflorus Gertrude Anthony 1904-4-23 s.n. San Mateo Goat Ranch Road, near Corte Madera - Santa Cruz Mountain Peninsula 243 Comment
  CDA33988  Rubus parviflorus D. G. Kelch 2011-3-13 11 .057 San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  JROH3773  Rubus parviflorus John H. Thomas 1974-5-3 17247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area below dam Comment
  UCR141432  Rubus parviflorus June Latting 1975-6-8 s.n. San Mateo Santa Cruz Mtns., Pescasero Road, 8 miles east of highway Calif. Hwy 1 122 Comment
  CAS-BOT-BC152866  Rubus parviflorus Elizabeth McClintock 1965-3-28 s.n. San Mateo Columbine Gulch - San Bruno Mountain Comment
  POM140137  Rubus parviflorus var. velutinus Edward L. Greene 1902-1-15 245 San Mateo West side King's Mountain. Comment
  POM222901  Rubus parviflorus var. velutinus S. S. Berry 1909-4-2 s.n. San Mateo Bear Creek Canyon Grade 244 Comment
  RSA128601  Rubus parviflorus var. velutinus Peter H. Raven 1950-4-30 1982 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  CAS-BOT-BC156767  Rubus spectabilis Walter Knight; Irja Knight 1964-4-25 692 San Mateo San Bruno Mountain Comment
  CAS-BOT-BC156768  Rubus spectabilis Walter Knight; Irja Knight 1964-4-25 1242 San Mateo Half way up Colma Canyon adjacent to creek. San Bruno Mountain Comment
  RSA112364  Rubus spectabilis var. franciscanus W. R. Dudley 1900-3-16 s.n. San Mateo By bridge over Pilarcitos Rd. (Spanishtown and San Mateo). Comment
  CAS-BOT-BC156595  Rubus ulmifolius Ira L. Wiggins 1980-8-29 22263 San Mateo North bank of San Francisquito Creek, on upstream side of Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC157071  Rubus ursinus L. R. Abrams 1914-10-14 5128 San Mateo [Tunitos Canon] Tunitas Canyon 121 Comment
  CAS-BOT-BC157080  Rubus ursinus L. R. Abrams 1914-10-14 5134 San Mateo Tunitas [Canon] Canyon Comment
  CAS-BOT-BC157090  Rubus ursinus J. Clausen 1948-5-9 2079 San Mateo Tunitas Creek road 121 Comment
  CAS-BOT-BC157110  Rubus ursinus John Thomas Howell 1938-6-4 13888 San Mateo Burlingame Comment
  JEPS25749  Rubus ursinus L. R. Heckard with Rimo Bacigalupi 1961-5-14 1234 San Mateo Canyon of Pilarcitos Creek about 0.5 mi below Stone Dam Reservoir; Canyon of Pilarcitos Creek below Stone Dam Reservoir 182 Comment
  RSA15290  Rubus ursinus Carl B. Wolf 1927-4-3 258 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  RSA89757  Rubus ursinus Philip A. Munz 1954-8-4 19913 San Mateo Montara. Comment
  SJSU22  Rubus ursinus C. D. Duncan 1925-5-23 San Mateo S end Portola Valley 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
  CAS-BOT-BC422076  Rumex acetosella Javier Penalosa 1963-3-30 2704 San Mateo San Bruno Mountain. North of Randolph Ave. at Hillside Blvd. in SSF. 91 Comment
  UCD101013  Rumex acetosella W. A. Harvey; J. M. Tucker 1948-6-28 1697 San Mateo 3 miles north of Pescadero. Comment
  CAS-BOT-BC422292  Rumex californicus Phillip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Bayshore Comment
  JROH3301  Rumex conglomeratus John Hunter Thomas 1982-6-7 21030 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3325  Rumex conglomeratus John Hunter Thomas 1977-6-16 18800 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC421820  Rumex conglomeratus Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC433367  Rumex crispus A. D. E. Elmer 1903-6-1 4276 San Mateo San Mateo Comment
  CAS-BOT-BC433368  Rumex crispus J. H. Thomas 1949-4-2 222 A San Mateo Palo Alto Yacht Club. Comment
  UC1101213  Rumex maritimus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1590 San Mateo mouth of Pescadero Creek Pescadero Creek Comment
  UC1191273  Rumex maritimus Herbert L. Mason and Verne Grant 1946-8-28 13090 San Mateo pond between Santa Cruz and Daly City (on Highway 5) Comment
  CAS-BOT-BC433817  Rumex pulcher David D. Keck 1932-5-6 1458 San Mateo Belmont Comment
  CAS-BOT-BC433818  Rumex pulcher Ned Cahill 1974-6-21 337 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  JROH3313  Rumex salicifolius John Hunter Thomas 1977-6-16 18787 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC434132  Rumex transitorius Alice Eastwood; John Thomas Howell 1938-6-26 6061 San Mateo Near Pescadero Comment
  JROH2219  Rupertia physodes John Hunter Thomas 1980-5-6 19922 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD23435  Rupertia physodes Alan T. Whittemore 1976-5-31 135 San Mateo Alpine Road, near east end of Corte Madera Creek Trail. Mixed evergreen forest. Sequoia in sheltered spots. Acer, Quercus and Alnus in open areas and by stream. Flowers past, originally purple. Trailing on forest floor. Foliage with somewhat unpleasant odor. Comment
  UC279598  Ruppia maritima W. A. Setchell San Mateo Laguna de Salada Comment
  SEINET3837363  Ruppia maritima Unknown 1946-4-30 s.n. San Mateo .5 mile north of Redwood City Comment
  JROH5580  Sagina apetala John Rawlings 2013-7-2 1200 San Mateo Jasper Ridge Biological Preserve, Stanford University; just downstream from Low Flow Crossing, San Francisquito Cr. 80 Comment
  SJSU15421  Sagina procumbens Toni Corelli 2011-8-25 709 San Mateo Ano Nuevo State Park, Cove Beach 7 Comment
  UC1191408  Salicornia europaea Malcolm A. Nobs and S. Galen Smith 1949-8-27 1624 San Mateo e of Redwood City Comment
  CAS-BOT-BC103342  Salix bonplandiana W. R. Dudley 1894-4-21 s.n. San Mateo By bridge above San Mateo Comment
  UCD110944  Salix exigua Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake. 121 Comment
  JROH3849  Salix exigua var. hindsiana John Hunter Thomas 1985-4-25 23558 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway Comment
  CAS-BOT-BC107857  Salix gooddingii W. R. Dudley 1902-9-21 s.n. San Mateo Causeway over Crystal Springs Lake - Santa Cruz Peninsula Comment
  CAS-BOT-BC125370  Salix lasiandra var. lasiandra W. R. Dudley 1898-4-24 s.n. San Mateo El Corte de Madera Creek Comment
  JROH3869  Salix lasiandra var. lasiandra John H. Thomas 1967-3-26 12415 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU7516  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  UCD111574  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-8 65002 San Mateo Searsville Lake. 121 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
  RSA178596  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo Near jct of San Francisquito and Los Trancos creeks. About 2 miles from Stanford University. Comment
  UC1303068  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo near junction of San Francisquito and Los Trancos creeks (about 2 mi from Stanford University) Comment
  CAS-BOT-BC108259  Salix lasiolepis var. bigelovii Walter Knight; Irja Knight 1964-3-16 s.n. San Mateo San Bruno Point - San Bruno Mountain Comment
  RSA788842  Salix lasiolepis var. bigelovii Peter Rubtzoff 1975-10-24 8433 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  UC846970  Salix scouleriana Lewis S. Rose 1938-10-16 38303 San Mateo Skyline Blvd. and La Honda Rd. Comment
  CAS-BOT-BC126502  Salix sitchensis W. R. Dudley 1904-3-7 69 San Mateo Bear Gulch, Santa Cruz Mts. 213 Comment
  CAS-BOT-BC126505  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo From Peters Creek above Iverson's to old mill Comment
  CAS-BOT-BC126506  Salix sitchensis D. E. Breedlove 1974-5-13 36212 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  UC75015  Salix sitchensis unknown 1902-3 San Mateo King's Mt. Comment
  SBBG40540  Salsola soda W. Anderson 1968-8-16 San Mateo W end of Dumbarton Bridge Comment
  RSA681666  Salvia leucophylla Annuschka Deb 1989-4-14 102 San Mateo YBN Demonstration Garden, Woodside, CA Comment
  RSA152266  Salvia spathacea John H. Thomas 1961-5-7 9299 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC1219867  Salvia spathacea John H. Thomas 1961-5-7 9299 San Mateo San Bruno Mountain; n part of San Mateo County 304 Comment
  SEINET10581809  Salvia spathacea Lewis S. Rose 1965-4-22 Rose 65028 San Mateo San Bruno Mountain, Colma Canyon open slopes. 61 Comment
  CAS-BOT-BC235037  Sambucus Roxana S. Ferris 1920-3-8 1765 San Mateo Frenchmans Creek near Ocean Comment
  UC1125343  Sambucus mexicana G. E. Sindel 1935-8-13 326 San Mateo San Gregorio Creek Santa Cruz Quadrangle Comment
  CAS-BOT-BC246020  Sambucus nigra subsp. caerulea Walter Knight; Irja Knight 1965-4-24 1029 San Mateo Point San Bruno at the bay shore on bluff, San Bruno Mountain Comment
  UCSC004609  Sanicula Randall Morgan 1994-3-12 2153 San Mateo Lower N slope of Coal Mine Ridge, not far from Alpine Road Comment
  POM133576  Sanicula arctopoides A. D. E. Elmer 1900-04 2365 San Mateo Kings Mountain. Comment
  UC75021  Sanicula arctopoides Dr. E. L. Greene 1902-3-30 425 San Mateo Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  OBI8787  Sanicula arctopoides Lewis S. Rose 1965-3-25 65012 San Mateo San Bruno Mts. N end 122 Comment
  SEINET12121123  Sanicula arctopoides E. McClintock, Knight, W.; Knight, I. 1982-1 4642 San Mateo upper elevations of San Bruno Mountain, especially around parking lot area Comment
  CAS-BOT-BC539830  Sanicula crassicaulis Fred Hemphill 1973-4-22 826 San Mateo San Carlos, area N of Malabar Rd. and Melendy Dr. 243 Comment
  JROH334  Sanicula crassicaulis John H. Thomas 1971-5-30 15978 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH336  Sanicula crassicaulis John H. Thomas 1974-4-13 17152 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  JROH344  Sanicula crassicaulis John Hunter Thomas 1986-5-1 23996 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH346  Sanicula laciniata Carol Zabel 1989-3-29 8 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road E, west side of road, 100 feet down from intersection with Road F Comment
  RSA8352  Satureja douglasii L. S. Rose 1933-6-9 s.n. San Mateo 3 miles W of San Bruno. Comment
  JROH357  Scandix pecten-veneris John Hunter Thomas 1981-5-25 20627 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC283131  Schedonorus arundinaceus John Thomas Howell 1955-5-25 30354 San Mateo Skyline Blvd. causeway, Crystal Springs Lake Comment
  CAS-BOT-BC111415  Schoenoplectus acutus var. occidentalis Rimo Bacigalupi 1922-5-25 s.n. San Mateo Emerald Lake, Redwood City Comment
  CAS-BOT-BC111607  Schoenoplectus californicus W. Knight; I. Knight 1966-10-4 2050 San Mateo Marsh near Bayshore, P. G. & E. Marsh Comment
  RSA10409  Schoenoplectus californicus Carl B. Wolf 1927-6-15 2165 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  POM185335  Schoenoplectus pungens E. B. Copeland 1903-6-15 3336 San Mateo Montara Point. Comment
  POM265000  Schoenoplectus pungens I. L. Wiggins 1928-4-22 2947 San Mateo Moss Beach Comment
  CDA19091  Scirpus maritimus J. Beall 2001-4-24 PDR 064435 San Mateo Belmont Creek at Old Country Rd., Belmont. 0 Comment
  UC1100838  Scirpus microcarpus Herbert L. Mason, Verne Grant 1946-8-28 13093 San Mateo on Highway 5 one mi w of San Bruno between Santa Cruz and Daly City; w of San Bruno Comment
  UC1102717  Scirpus pungens John H. Thomas 1960-6-25 8797 San Mateo along or near small creek running into Redwood Slough between El Camino Real and rr tracks, near Maple St. Redwood City Comment
  POM202952  Scoliopus bigelovii Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  POM51487  Scoliopus bigelovii H. R. Ebright 1922-03 s.n. San Mateo Lake Pilarcitos. Comment
  UC142703  Scoliopus bigelovii Alice Eastwood 1902-2-28 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC519019  Scoliopus bigelovii Alice Eastwood 1933-4-30 s. n. San Mateo Lake Pilarcitos Comment
  UC454434  Scoliopus bigelovii Manton Feb. 1906 San Mateo Comment
  CDA7622  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  JROH5784  Scribneria bolanderi John Rawlings 2016-5-3 1778 San Mateo Jasper Ridge Biological Preserve, Stanford University; bare, rocky, sepentinite about 30 yards west of Rd F in Area C 177 Comment
  JROH4124  Scrophularia californica Richard L. Garber 1971-5-18 19 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4126  Scrophularia californica John H. Thomas 1975-6-5 17929 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lowflow crossing Comment
  RSA18300  Scrophularia californica Carl B. Wolf 1927-5-31 416 San Mateo North end of Searsville Lake. Comment
  JROH2888  Scutellaria tuberosa John Hunter Thomas 1986-5-17 24054 San Mateo Jasper Ridge Biological Preserve, Stanford University; creek trail downstream from Rattlesnake Rock Comment
  CAS-BOT-BC59061  Sedum spathulifolium G. B. Rossbach 1939-6-18 756 San Mateo Ledge near 755 on SE slope of North Peak, Montara Mts. 396 Comment
  CAS-BOT-BC59271  Sedum spathulifolium W. R. Dudley 1894-4-21 s.n. San Mateo Rocks below Crystal Springs Reservoir. Comment
  RSA0074737  Sedum spathulifolium R. F. Thorne, P. C. Everett 1963-6-9 32245 San Mateo On top of San Bruno Mountain. 335 Comment
  CAS-BOT-BC363397  Senecio aronicoides Fred Hemphill 1973-5-6 784 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC363398  Senecio aronicoides Fred Hemphill 1973-4-22 827 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  UC36172  Senecio aronicoides J. Burtt Davy 1895-4-20 1069 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC363737  Senecio hydrophilus George Oberlander 1950-5-28 994 San Mateo San Francisco Watershed Reserve. Upper Crystal Springs Lake Comment
  CAS-BOT-BC364239  Senecio sylvaticus Javier Penalosa 1963-3-9 2668 San Mateo San Bruno Mountain. Slopes southeast of 1314 ft. summit 381 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
  CAS-BOT-BC364638  Senecio vulgaris John H. Thomas 1968-12-18 14869 San Mateo About 1 mile west of Pescadero toward the coast Comment
  CAS-BOT-BC364641  Senecio vulgaris Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Slope above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC85783  Sequoia sempervirens unspecified 1901-1-26 s.n. San Mateo Santa Cruz Peninsula, Coal Mine [Canon] Canyon Comment
  JROH134  Sequoia sempervirens John H. Thomas 1964-11-29 10542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR168464  Sequoia sempervirens David D. Keck 1932-2-14 1368 San Mateo Coast Range, La Honda Road, east slope of Coast Range above Searsville Lake 305 Comment
  JROH3832  Sherardia arvensis John H. Thomas 1974-4-4 17077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3838  Sherardia arvensis John Hunter Thomas 1992-4-23 25154 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  UCD23457  Sherardia arvensis E. A. Parzail 1949-8-1 s.n. San Mateo 1144 Cortez Avenue, Burlingame. Comment
  POM223278  Sidalcea diploscypha L. S. Rose 1935-6-9 35211 San Mateo Emerald Lake, W. of Redwood City Comment
  RSA40293  Sidalcea diploscypha L. S. Rose 1948-5-16 48117 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  SD39294  Sidalcea diploscypha McCallum 1933-5-30 3706 San Mateo Spring Valley 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
  CAS-BOT-BC205603  Sidalcea malviflora Dean Wm. Taylor 1988-3-30 9468 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 PGandE high-voltage powerlines crossing the mountain 237 Comment
  RSA448202  Sidalcea malviflora subsp. malviflora Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  UC1124987  Sidalcea malviflora subsp. malviflora H. S. Yates 1935-2-3 5011 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quadrangle Comment
  UC1327248  Sidalcea malviflora subsp. malviflora John T. Doyen 1966-3-28 29 San Mateo near Radio Towers at top (San Bruno Mountain); , near Radio Towers at top Comment
  UC517485  Sidalcea malviflora subsp. malviflora John Thomas Howell 1933-4-9 10974 San Mateo 2 mi n Pigeon Pt.; n of Pigeon Pt. Comment
  JROH2971  Sidalcea malviflora subsp. malviflora John Hunter Thomas 1981-4-5 20271 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lake Comment
  UCR121568  Silene gallica George K. Helmkamp, E. A. Helmkamp 1999-6-28 4994 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  UCD164093  Silene gallica Peter Rubtzoff 1978-5-5 9164 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-BC389201  Silene laciniata subsp. californica Ned Cahill 1974-5-18 283 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC389899  Silene scouleri subsp. scouleri Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountains. Kamtchaka [Kamchatka] Point Comment
  CAS-BOT-BC74990  Sinapis arvensis Fred Hemphill 1973-5-6 767 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  POM273726A  Sisymbrium officinale Lyman Benson 1935-5-5 6533 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  POM273726B  Sisymbrium officinale Lyman Benson 1935-5-5 6533 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  SD227685  Sisyrinchium bellum G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3746 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  UCR115445  Smilacina stellata Don Pendleton 1996-4-5 s.n. San Mateo San Francisco Bay region, Edgewood County Park, western edge of Redwood City, along Edgewood Rd. north of the parking lot for the park 122 Comment
  JEPS12105  Solanum douglasii W. I. Follett 1934-2-18 10 San Mateo 2.6 mi n of Pigeon Point (beside the main highway) Comment
  UCR122985  Solanum douglasii George K. Helmkamp, E. A. Helmkamp 2001-6-2 6782 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  SEINET5571744  Solanum douglasii H. S. Gentry 1931-1 88 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UCD126846  Solanum furcatum E. F. Paddock; G. L. Stebbins Jr. 1940-7-28 89 San Mateo Tobin. Comment
  SEINET12274849  Solanum sarachoides E. H. Graham 1931-1 6942 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  CAS-BOT-BC58479  Solanum umbelliferum F. Hemphill 1973-5-6 747 San Mateo San Carlos. N of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC156868  Solanum umbelliferum W. R. Dudley 1896-2-16 s.n. San Mateo Glen Gloaming near Peters Cr., Santa Cruz Mts. Comment
  CDA8732  Solidago canadensis A. Roach 1972-11-17 San Mateo Railroad right-of-way, South San Francisco. 0 Comment
  UCR256294  Solidago canadensis subsp. elongata Peter Rubtzoff 1978-9-16 9271 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  JEPS32447  Solidago elongata W. L. Jepson 1910-8-18 4163 San Mateo Butano Cr Comment
  CAS-BOT-BC365189  Solidago velutina subsp. californica Roxana S. Ferris 1920-9-3 2051 San Mateo Santa Cruz Mountain Peninsula. Near the upper Mud Lake, Coal Mine Ridge Comment
  CAS-BOT-BC374491  Sonchus asper Fred Hemphill 1973-4-22 786 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC236581  Sorghum halepense John H. Thomas 1968-10-6 14846 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance, east of Palo Alto Comment
  POM182582  Sparganium erectum subsp. stoloniferum D. D. Keck 1931-8-6 1264 San Mateo Near Searsville Lake. 75 Comment
  JROH5519  Sparganium eurycarpum var. eurycarpum James McMurphy 1906-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  SEINET10602935  Spartina foliosa Delzie Demaree 1933-9-17 Demaree 10528 San Mateo San Francisco Bay, Belmont Common along margins of salt marshes Comment
  CAS-BOT-BC390008  Spergula arvensis John H. Thomas 1964-4-30 10348 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC390007  Spergula arvensis Javier Penalosa 1963-2-23 2643 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC390011  Spergula arvensis Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  JROH1745  Spergula arvensis John Hunter Thomas 1980-4-10 19881 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  SEINET7062814  Spergula arvensis subsp. arvensis A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach west of Pescadero. UTM Zone 10, 551765mE, 4121313mN. (WGS84/NAD83). 0 Comment
  JROH1765  Spergularia John Hunter Thomas 1987-5-7 24263 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1750  Spergularia bocconi John H. Thomas 1967-5-12 12891 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5559  Spergularia bocconi Herb Dengler 1965-4-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Jasper Ridge on "road" about 150 feet out of blue oaks into meadow above Hodge Spring Comment
  CAS-BOT-BC390467  Spergularia macrotheca var. macrotheca Elsie M. Zeile 1921-7-30 s.n. San Mateo Salada Comment
  CAS-BOT-BC390468  Spergularia macrotheca var. macrotheca Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC390477  Spergularia macrotheca var. macrotheca Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC390920  Spergularia marina Malcom A. Nobs; S. Galen Smith 1949-8-26 1596 San Mateo At the mouth of Pescadero Creek Comment
  SD25965  Spiranthes romanzoffiana Edith A. Purer 1939-7-1 7928 C San Mateo Wet spot, sand dunes, Ano Nuevo Point. Comment
  SD39424  Spiranthes romanzoffiana Edith A. Purer 1939-7-1 7928 C San Mateo Wet spot, snd dunes, Ano Nuevo Point. Comment
  CHSC27765  Stachys bullata Jan M. Karaz 1978-3-22 15 San Mateo Canada College. 1/4 mi from Canada Rd. w on the ridge. 2 mi past intersection of Hwy 280 and Canada Rd. 18 Comment
  JROH2901  Stachys bullata John Hunter Thomas 1977-6-16 18793 San Mateo Jasper Ridge Biological Preserve, Stanford University; along raised causeway 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
  SBBG6546  Stachys bullata H. and M. Dearing 1933-5-14 San Mateo Skyline Drive, S of San Francisco Comment
  JROH2900  Stachys bullata Herb Dengler 1972-5-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; above (W.) of junction of S.F. and Bear Creeks Comment
  SEINET12343830  Stachys bullata L. S. Rose 1932-5-3 32215 San Mateo San Bruno 183 Comment
  RSA0109086  Stachys pycnantha W. R. Dudley 1902-9-21 s.n. San Mateo Near Crystal Springs Lake. Comment
  CDA41578  Stachys rigida A. Gilbert 1997-6-8 s.n. San Mateo San Francisco Bay Area; La Honda. 0 Comment
  RSA218025  Stachys rigida subsp. quercetorum Elizabeth McClintock, Carlyn Halde 1963-6-23 s.n. San Mateo East-facing slope below parking lot, San Bruno Mountain Comment
  JROH2894  Stachys rigida var. quercetorum John Hunter Thomas 1978-4-20 19089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC394055  Stellaria media Elizabeth McClintock 1967-4-16 s.n. San Mateo Buckeye Canyon; San Bruno Mountain Comment
  CAS-BOT-BC394056  Stellaria media John H. Thomas 1963-5-20 10125 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  JROH1789  Stellaria nitens John H. Thomas 1968-3-17 14196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC375908  Stephanomeria virgata George Oberlander 1950-7-15 1070 San Mateo San Francisco Watershed Reserve. On Cahill Ridge Comment
  CAS-BOT-BC375911  Stephanomeria virgata Le Roy Abrams 1902-9-28 3002 San Mateo New Grade Road - near Portola Comment
  RSA18514  Stephanomeria virgata C. B. Wolf 1927-7-14 606 San Mateo Summit of Kings Mountain Rd. Comment
  RSA128948  Stephanomeria virgata subsp. virgata J. T. Howell 1939-10-8 15369 San Mateo Pt San Pedro. Comment
  JROH5388  Stipa miliacea var. miliacea John Hunter Thomas 1989-5-30 24757 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5334  Stipa pulchra John H. Thomas 1964-4-12 10311 San Mateo Jasper Ridge Biological Preserve, Stanford University. On slope to the east of the dam. Comment
  JROH5335  Stipa pulchra John Hunter Thomas 1978-5-16 19216 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM259788  Stuckenia pectinata I. L. Wiggins, Roxana S. Ferris 1939-8-2 9293 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC271601  Symphoricarpos albus var. laevigatus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo East facing slope below parking lot, San Bruno Mountain Comment
  JROH1679  Symphoricarpos albus var. laevigatus John Hunter Thomas 1977-6-16 18737 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA246190  Symphoricarpos albus var. laevigatus E. K. Balls 1965-9-18 12170 San Mateo 1 mile W from Skywood along Hwy 81 from Woodside to junction with Hwy 35. Comment
  CAS-BOT-BC237059  Symphoricarpos mollis Ned Cahill 1974-5-13 254 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 mi. westward from REdwood City Comment
  CAS-BOT-BC237062  Symphoricarpos mollis W. R. Dudley 1899-5-24 s.n. San Mateo Near Redwood City, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC237063  Symphoricarpos mollis W. R. Dudley 1893-5-27 s.n. San Mateo Kings Mt., Santa Cruz Range, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC237064  Symphoricarpos mollis Ira L. Wiggins 1925-4-1 1651 San Mateo On Kings Mountain Road three fourths of a mile above Woodside in the old cut over redwood belt. Comment
  CAS-BOT-BC237066  Symphoricarpos mollis Phillip C. Wheeler 1965-4-27 s.n. San Mateo Live Oak Canyon, San Bruno Mountain Comment
  CAS-BOT-BC99100  Symphyotrichum chilense Lewis S. Rose 1966-8-15 66083 San Mateo Pillar Point 1 Comment
  JROH525  Symphyotrichum chilense John Hunter Thomas 1981-9-24 20750 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD136532  Symphyotrichum chilense Lewis S. Rose 1966-8-15 66083 San Mateo Pillar Point. 1 Comment
  CAS-BOT-BC99054  Symphyotrichum chilense Alice Eastwood; John Thomas Howell Apr. 24, 1938. 5253 San Mateo Tunitas Comment
  CAS-BOT-BC99058  Symphyotrichum chilense David D. Keck 1930-10-15 989 San Mateo South-west of Woodside 457 Comment
  HSC23979  Symphyotrichum chilense Mary Katherine Wicksten 1971-6-24 117 San Mateo Huddart Park, by park entrance Comment
  UC1536888  Symphyotrichum subspicatum G. H. True Jr. 1936-6-14 507 San Mateo in canyon s of Salada Beach 304 Comment
  CAS-BOT-BC99386  Symphyotrichum subspicatum Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo Willow Pond, San Bruno Mountains Comment
  CDA34524  Tamarix parviflora T. Hyland 2011-3-1 San Mateo CalTrans right of way 100 meters west of gate leading to Cascade Creek mouth. 0 Comment
  JROH1283  Tanacetum parthenium John Hunter Thomas 1992-5-26 25357 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  JROH1279  Tanacetum parthenium Carol Zabel 1989-8-11 30 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank upstream 20 feet from low-flow crossing on Road C Comment
  CAS-BOT-BC353472  Taraxacum officinale Peter Rubtzoff 1977-4-14 8943 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. East Fork Colma Creek canyon area at the NW corner of Fog Forest, San Bruno Mountains. Comment
  JROH2999  Taraxia ovata James Newman 1951-4-21 7 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  JROH372  Tauschia kelloggii John H. Thomas 1963-3-20 10028 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  RSA210918  Taxus brevifolia John H. Thomas 1968-12-18 14866 San Mateo Oakland YMCA Camp near Loma Mar, between Pescadero and La Honda Comment
  CAS-BOT-BC447481  Tellima grandiflora John H. Thomas 1974-5-9 17334 San Mateo San Pedro Valley. Northern part of county, inland from Pacifica. 152 Comment
  SEINET7076118  Tellima grandiflora A. G. Vestal 1955-5-31 s.n. San Mateo La Honda Road (Route 86) at Redwood Terrace. (NAD 27; 37.3184? deg. North Latitude, 122.2959? deg. West Longitude, UTM Zone 10, 562392mE, 4130218mN). [GPS Coordinate: WGS84/NAD83]. Comment
  CAS-BOT-BC447470  Tellima grandiflora Walter Knight; Irja Knight 1964-5-30 596 San Mateo Colma Canyon up creek from indian Head Rock. Comment
  JROH3508  Thalictrum fendleri var. polycarpum John H. Thomas 1961-4-29 9196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3514  Thalictrum fendleri var. polycarpum John Hunter Thomas 1988-4-7 24381 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near dam Comment
  JROH3515  Thalictrum fendleri var. polycarpum John Hunter Thomas 1991-4-11 24987 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC399847  Thalictrum polycarpum Peter Rubtzoff 1953-5-14 1350 B San Mateo Pilarcitos Creek Canyon 1 to 2 miles downstream from Pilarcitos Lake Comment
  CAS-BOT-BC399848  Thalictrum polycarpum Peter Rubtzoff 1953-5-14 1350 A San Mateo Pilarcitos Creek Canyon 1 to 2 miles downstream from Pilarcitos Lake Comment
  CAS-BOT-BC399851  Thalictrum polycarpum C. F. Baker 1902-5-1 692 San Mateo Crystal Springs Lake Comment
  SEINET12086638  Thalictrum polycarpum P. R. Hichborn 1920-1 147 San Mateo Portola Valley, Santa Cruz Mountain Peninsula Comment
  POM16722  Thermopsis californica var. californica A. D. E. Elmer 1903-05 4824 San Mateo Crystal Springs Lake. Comment
  CDA3888  Thlaspi arvense W. Davis 1967-4-24 San Mateo Southern Pacific Railroad, San Mateo. 0 Comment
  CAS-BOT-BC66661  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66674  Thysanocarpus curvipes John H. Thomas 1977-4-2 18507 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66678  Thysanocarpus curvipes Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills. Comment
  CAS-BOT-BC66679  Thysanocarpus curvipes W. R. Dudley 1894-4-11 s.n. San Mateo Santa Cruz Peninsula. Slope near Menlo Park Reservoir. Comment
  JROH1609  Thysanocarpus curvipes John Hunter Thomas 1986-5-1 23993 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old gate and fence (which has now been removed) Comment
  CAS-BOT-BC447581  Tiarella trifoliata var. unifoliata L. R. Abrams 1907-8-26 s.n. San Mateo Spring near King's 762 Comment
  SD27906  Tiarella trifoliata var. unifoliata L. A. Waitzinger 1927-8-14 San Mateo Islam Camp, near La Honda, Santa Cruz Mts. Comment
  JROH404  Torilis nodosa John Hunter Thomas 1991-5-2 25021 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH383  Torilis nodosa John Hunter Thomas 1980-5-13 19966 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH389  Torilis nodosa John Hunter Thomas 1983-4-28 21784 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH392  Torilis nodosa John Hunter Thomas 1984-5-3 23330 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA15279  Torreya californica C. B. Wolf 1927-4-3 245 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  JROH4759  Toxicoscordion fremontii John H. Thomas 1977-4-8 18522 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU10559  Toxicoscordion fremontii W. J. Cervenka 1962-2-2 San Mateo S end of Portofino Dr, San Carlos Comment
  CDA7720  Tragopogon dubius I. J. Campbell 1964-11-19 San Mateo State Highway 1 & Whitehouse Ranch Road, Pescadero. 0 Comment
  CAS-BOT-BC377135  Tragopogon porrifolius J. H. Thomas 1958-10-28 7493 San Mateo Near intersection of Bayshore highway and Main Street. Redwood City Comment
  SD39136  Trientalis europaea var. latifolia Edith A. Purer 1933-5-16 3603 San Mateo Alpine Road Comment
  CHSC56576  Trientalis latifolia Steven Triano 1988-5-24 166 San Mateo Ca 0.1 mi w of Old La Honda Road near Martin Creek and 0.4 air miles e of SkyLonda. 381 Comment
  RSA176743  Trientalis latifolia John H. Thomas 1961-5-5 9215 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  RSA116715  Trientalis latifolia W. R. Dudley 1895-6-8 s.n. San Mateo Santa Cruz Peninsula, in redwoods near Pescadero creek Comment
  RSA116717  Trientalis latifolia E. W. Rust 1907-4-13 s.n. San Mateo Los Traucos Creek. Comment
  SJSU7966  Trifolium amplectens var. stenophyllum E. C. Garbett 1960-4-13 92 San Mateo W of Skyline Blvd, 3 mi N of its junction with Page Mill Rd Comment
  POM18837  Trifolium bifidum C. F. Baker 743 San Mateo Woodside Comment
  UC203053  Trifolium bifidum var. bifidum A. D. E. Elmer April, 1903 4798 San Mateo Portola Comment
  SJSU15445  Trifolium bifidum var. decipiens Toni Corelli 2010-5-13 604 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  RSA6273  Trifolium ciliolatum D. D. Keck 1932-6-1 1792 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mountains 305 Comment
  POM278639  Trifolium depauperatum Lyman D. Benson 1930-5-1 2064 San Mateo Stanford University. 122 Comment
  JROH2259  Trifolium depauperatum var. amplectens John H. Thomas 1974-4-19 17160 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  JROH2233  Trifolium dichotomum John H. Thomas 1975-4-19 17797 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2280  Trifolium dubium John Hunter Thomas 1980-4-10 19878 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JEPS127790  Trifolium fucatum Adam C. Schneider with C. Matt Guilliams 2013-4-7 61 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH2281  Trifolium fucatum Marie Tifft 1952-5-10 42 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  SBBG39547  Trifolium fucatum L. S. Rose 1970-4-8 San Mateo Black Mtn, W of San Mateo 121 Comment
  SEINET10829824  Trifolium fucatum David D. Keck 1933-5-11 Keck 2295 San Mateo Montara Light House and Radio Station. On level plateau just above the ocean's waves, in loamy soil. Comment
  POM126277  Trifolium fucatum var. fucatum R. L. Pendleton 1907-4-20 622 San Mateo Ocean View. 122 Comment
  POM216312  Trifolium fucatum var. fucatum D. D. Keck 1933-5-11 2295 San Mateo Montara Light House and Radio Station. Comment
  POM223326  Trifolium fucatum var. fucatum L. S. Rose 1935-5-4 35152 San Mateo Burlingame. Comment
  SJSU15442  Trifolium glomeratum Toni Corelli 2010-5-13 602 San Mateo Pedro Point Headlands, Pacifica, CA, disturbed area along South Ridge Trail, west of Hwy. 1 100 Comment
  RSA128600  Trifolium macraei Peter H. Raven 1950-4-30 1991 San Mateo Montara Mts. 122 Comment
  UC575704  Trifolium microcephalum Lewis S. Rose 1935-5-1 35139 San Mateo Belmont Comment
  UC866875  Trifolium microcephalum Lewis S. Rose 1935-5-1 35139 San Mateo Belmont Comment
  JROH2346  Trifolium subterraneum John Hunter Thomas 1980-4-10 19873 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2351  Trifolium subterraneum John Hunter Thomas 1983-4-3 21312 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside near Searsville Lab Comment
  JROH2365  Trifolium subterraneum John Hunter Thomas 1988-6-2 24500 San Mateo Jasper Ridge Biological Preserve, Stanford University; beach Comment
  UC2048923  Trifolium suffocatum Neal Kramer 2016-4-9 2169 a San Mateo Pescadero State Beach Parking Area. Comment
  HSC1863  Trifolium variegatum J. Wendell Howe 1930-4-11 San Mateo Menlo Park Comment
  JROH2373  Trifolium variegatum John H. Thomas 1955-5-6 4999 San Mateo Jasper Ridge Biological Preserve, Stanford University; small draw on south side of ridge Comment
  JROH2389  Trifolium variegatum John Hunter Thomas 1991-5-2 25007 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18091  Trifolium variegatum Carl B. Wolf 1929-4-24 365724 San Mateo south west end of Jasper Ridge, near Searsville Lake Comment
  UC165501  Trifolium variegatum var. melananthum J. Burtt Davy 1895-1 1017 San Mateo Pilarcitos Comment
  JROH2410  Trifolium willdenovii John Hunter Thomas 1986-4-10 23954 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JEPS66103  Trifolium wormskioldii William S. Cooper 1919-7-22 205 San Mateo Ano Nuevo Pt Comment
  UCSC007777  Trifolium wormskioldii Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  JROH4733  Trillium chloropetalum John Hunter Thomas 1981-2-14 20225 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam area, redwood area Comment
  UC74959  Trillium chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC521006  Trillium chloropetalum var. chloropetalum Janet Jones 1981-1-17 s. n. San Mateo On south side of Montara Mountain, Montara Comment
  CAS-BOT-BC521062  Trillium chloropetalum var. giganteum Walter & Irja Knight 1965-3-21 995 San Mateo San Bruno Mountain Comment
  CAS-BOT-BC521065  Trillium chloropetalum var. giganteum Walter & Irja Knight 1965-3-21 996 San Mateo San Bruno Mountain Comment
  CAS-BOT-BC521066  Trillium chloropetalum var. giganteum Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain: Mouth of Colma Canyon near Indian Head Rock Comment
  CAS-BOT-BC521073  Trillium chloropetalum var. giganteum J. H. Thomas 1949-3-29 s.n. San Mateo King's Mountain Comment
  CAS-BOT-BC521074  Trillium chloropetalum var. giganteum W. R. Dudley 1894-3-24 s.n. San Mateo Santa Cruz Peninsula: Bank of Pescadero Creek Comment
  CAS-BOT-BC521075  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula: ravine S side Montara Mt. Comment
  POM193595  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-16 s.n. San Mateo By trail north of Tripps Stone, Woodside. Comment
  POM193597  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-17 s.n. San Mateo Ravine south side of Montana Mountains. Comment
  CAS-BOT-BC133437  Trillium ovatum D. D. Davis 1903-5-1 s.n. San Mateo Near Pescadero, near Iversons Comment
  RSA134119  Trillium ovatum John H. Thomas 1954-4-3 3822 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda. 107 Comment
  SEINET12044499  Trillium ovatum P. R. Hichborn 1920-1 115 San Mateo Sierra Moreva Ridge Comment
  UC1537446  Triphysaria eriantha subsp. eriantha Gordon H. True Jr. 1936-6-7 487 San Mateo slong coast highway 2 mi s Pescadero 15 Comment
  CAS-BOT-BC238553  Triphysaria floribunda Vincent Jones 1921-4-1 s.n. San Mateo San Bruno hills Comment
  CAS-BOT-BC238554  Triphysaria floribunda Alice Eastwood 1919-5-19 s.n. San Mateo San Bruno Hills, San Francisco Comment
  CAS-BOT-BC238579  Triphysaria floribunda Walter Knight; Irja Knight 1964-3-16 s.n. San Mateo San Bruno Mountain. San Bruno Point Comment
  JEPS3988  Triphysaria pusilla Dr. L. M. Newlon 1919-4-14 4 San Mateo Moss Beach 22 Comment
  JROH4139  Triphysaria pusilla John H. Thomas 1974-4-13 17154 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of ridge Comment
  JROH4142  Triphysaria pusilla John Hunter Thomas 1983-4-3 21310 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach near Searsville Lab Comment
  JEPS10445  Triphysaria versicolor subsp. versicolor Adele Lewis Grant 1917-5-6 934 San Mateo Pebble Beach 3 Comment
  CAS-BOT-BC523098  Triteleia ixioides subsp. ixioides David D. Keck 1940-5-19 5047 San Mateo Santa Cruz Mountains, east flank, above Woodside and Searsville Lake on La Honda Road 300 Comment
  HSC23983  Triteleia ixioides subsp. ixioides Mary Katherine Wicksten 1971-6-17 4 San Mateo Huddart Park, grassy hill above Oak Area Comment
  SD626  Triteleia laxa U. S. Grant IV 1925-6-15 San Mateo La Honda. Comment
  UCR101434  Triteleia laxa George K. Helmkamp, E. A. Helmkamp 1998-5-16 3752 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 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-BC74064  Turritis glabra Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills. Comment
  JROH5533  Typha angustifolia John H. Thomas 1967-5-31 12928 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204316  Typha angustifolia I. L. Wiggins 1929-7-4 3803 San Mateo Marsh near Pescadero Beach. Comment
  UC1176859  Typha domingensis Peter Rubtzoff 1957-11-20 3581 San Mateo 0.2 mi n San Gregorio road junction (ca 60 ft e of the road); ditch near coastal road Comment
  CDA20602  Ulex europaeus J. Beall 2005-10-27 PDR 1359199 San Mateo San Francisco Bay Area; 0.25 mi Nof Westline and Skyline, Daly City. 0 Comment
  RSA78564  Ulex europaeus Philip A. Munz 1953-2-1 18274 San Mateo North of Scott Valley. Comment
  CAS-BOT-BC91230  Umbellularia californica Peter H. Raven 1964-2-16 18743 San Mateo Just south of Lake San Andreas. Comment
  JROH136  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH146  Umbellularia californica John Hunter Thomas 1991-12-28 25117 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1244713  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo 5 mi sw of Palo Alto (Jasper Ridge); Jasper Ridge 152 Comment
  UC750643  Umbellularia californica Lewis S. Rose 1946-3-9 46017 San Mateo San Mateo Canyon 91 Comment
  POM204437  Urtica dioica subsp. holosericea E. C. Sutliffe 1933-7-12 s.n. San Mateo Between the Skyline Blvd and La Honda on the Alpine Creek Road. Comment
  RSA195561  Urtica urens John H. Thomas 1967-2-9 12405 San Mateo Half Moon Bay. Near Mills St. and Purissima St. Comment
  SEINET12036188  Urtica urens Unknown 1932-1 9160 San Mateo San Madero Creek Comment
  SJSU6082  Vaccinium cespitosum S. H. Casey 1969-5-18 263 San Mateo Kamtchatka Point, San Bruno Mt Comment
  CAS-BOT-BC199347  Vaccinium ovatum David D. Keck 1933-5-11 2302 San Mateo Montara Summit, Montara Mountain Comment
  JEPS58746  Vaccinium ovatum A. D. E. Elmer Apr 1903 4561 San Mateo Kings Mountain Comment
  UC877270  Vaccinium ovatum G. W. Reyburn 1908-3-28 San Mateo vicinity Woodside; Kings Mountain 701 Comment
  UC22218  Vaccinium parvifolium W. J. V. Osterhout Jul 1899 San Mateo Near Pescadero Comment
  CAS-BOT-BC76144  Vancouveria planipetala A. D. E. Elmer 1903-5-1 4922 San Mateo Iverson's Place. Pescadero Creek. Comment
  CAS-BOT-BC76148  Vancouveria planipetala D. D. Davis 1903-5-2 s.n. San Mateo Near Iverson's on Pescadero Creek. Comment
  JROH4148  Verbascum thapsus John Hunter Thomas 1982-5-25 20963 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38891  Verbena lasiostachys Cummings, Mc Callum 1933-5-24 3726 San Mateo Open Hills in Spring Valley Comment
  JROH4270  Verbena lasiostachys var. lasiostachys John Hunter Thomas 1990-7-4 24874 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4271  Verbena lasiostachys var. lasiostachys John Hunter Thomas 1991-6-9 25069 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306601  Veronica peregrina subsp. xalapensis A. D. E. Elmer June, 1903 4268 San Mateo Crystal Springs Lake Comment
  JROH4153  Veronica persica John H. Thomas 1969-4-12 14889 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area below dam Comment
  UC16934  Vicia americana var. americana J. Burtt Davy Jun 21 1893-Jun 23 1893 1160 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  RSA397971  Vicia benghalensis E. A. Purer 1932-7-16 15925 San Mateo Near Pigeon Point Comment
  SBBG30068  Vicia benghalensis J. T. Howell 1938-6-4 13886 San Mateo Burlingame Comment
  UC618588  Vicia benghalensis John Thomas Howell 1938-6-4 13886 San Mateo Burlingame Comment
  RSA254231  Vicia dasycarpa Robert A. Norris 1975-3-31 2290 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  POM16746  Vicia gigantea A. D. E. Elmer 1903-06 4445 San Mateo Pescadero Comment
  RSA397993  Vicia gigantea Emery M. Whilton 1935-2-23 s.n. San Mateo Near Mussel Rock Comment
  UC16992  Vicia hassei J. Burtt Davy 1895-4-20 1076 San Mateo San Mateo Creek Comment
  SFV4291  Vicia sativa J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1, almost 10 miles north of Santa Cruz County line Open roadside. 30 Comment
  UCD164424  Vicia sativa subsp. nigra Peter Rubtzoff 1977-6-21 9062 San Mateo San Bruno Mounains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  JEPS127784  Vicia sativa subsp. sativa Adam C. Schneider with C. Matt Guilliams 2013-3-9 55 San Mateo Comment
  JROH2445  Vicia sativa subsp. sativa John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2450  Vicia sativa subsp. sativa John Hunter Thomas 1983-4-3 21311 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area Comment
  JROH2451  Vicia sativa subsp. sativa John Hunter Thomas 1983-4-3 21311 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area Comment
  UCR123142  Vicia tetrasperma George K. Helmkamp, E. A. Helmkamp 2001-6-2 6769 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  JROH5846  Vicia villosa subsp. varia Carol Zabel, Ann Lambrecht 2004-5-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Road B along SLAC corridor Comment
  JROH424  Vinca major John H. Thomas 1977-4-8 18517 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Portola Rd. and Sand Hill Rd. Comment
  CAS-BOT-BC264039  Viola adunca Ira L. Wiggins 1931-2-21 5091 a San Mateo Near the beach, Pescadero Beach Comment
  RSA15353  Viola adunca Carl B. Wolf 1927-1-29 168 San Mateo Pebble Beach, coast south of Pescadero. Comment
  UC1121562  Viola adunca A. E. Wieslander 1935-2-3 507 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  UC19259  Viola adunca Ivar Tidestrom 1894-3-24 San Mateo Comment
  UCD110660  Viola adunca subsp. adunca A. A. Beetle 1939-3-31 1777 San Mateo Daly City. Comment
  CAS-BOT-BC389693  Viola ocellata Mary K. Wicksten 1971-6-17 198 San Mateo Huddart Park Comment
  UCD166151  Viola purpurea subsp. quercetorum Jack Major; M. Forde and S. Bamberg 1962-4-3 735 San Mateo Above Finney Creek. (Exact location unknown. Coordinates estimated by label maker). 121 Comment
  UC19358  Viola sempervirens Kellogg 1870-5-19 San Mateo San Gregoria Creek Comment
  CAS-BOT-BC199820  Vulpia John H. Thomas 10616 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC199857  Vulpia bromoides Javier Penalosa 1963-3-9 2694 San Mateo Ravine 1/2 mi. east of 1314 ft. summit 304 Comment
  CAS-BOT-BC199858  Vulpia bromoides Javier Penalosa 1963-3-30 2712 San Mateo North of Randolph Drive at Hillside Blvd in SSF 91 Comment
  CAS-BOT-BC199860  Vulpia bromoides William Lundgren 1974-7-1 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC210155  Vulpia bromoides Peter Rubtzoff 1977-4-16 8948 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC210156  Vulpia bromoides Peter Rubtzoff 1975-5-21 7967 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  POM296530  Vulpia bromoides Lyman Benson 1935-5-5 6540 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  RSA790284  Vulpia bromoides Peter Rubtzoff 1977-6-7 9031 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET10595128  Vulpia bromoides Delzie Demaree 1932-5-22 Demaree 9179 San Mateo Gov. Rolf Estate. Hills. Comment
  RSA27482  Vulpia microstachys I. L. Wiggins 1941-4-17 9720 San Mateo Roadside near junction of road to California Sanitarium and Woodside-Half Moon Bay road. Comment
  CAS-BOT-BC184040  Vulpia microstachys var. microstachys Ned Cahill 1974-4-29 182 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC185769  Vulpia myuros subsp. megalura Margaret Barry 1937-4-21 8 San Mateo Coal Mine Ridge Comment
  JROH2713  Whipplea modesta John Rawlings 2007-4-1 0995 San Mateo Jasper Ridge Biological Preserve, Stanford University. On slope above south side of Bear Creek a few yards before San Francisquito Creek confluence. 81 Comment
  UC858951  Whipplea modesta E. L. Breton 1908-3-28 San Mateo road from Woodside to Kings Mt. 182 Comment
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