Search Results — 2000 specimen records retrieved (1343 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA0065213  Acacia A. C. Sanders 2014-8-3 41230 San Mateo South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay. 3 Comment
  SEINET3892509  Acacia cyclops R. L. Johnson 2012-4-6 12 -001 San Mateo Half Moon Bay, roadside on Redondo Beach Rd.; 0 25 Comment
  UC14110  Acaena pinnatifida var. californica E. L. Drew Apr. 1888 San Mateo San Pedro Ranch Comment
  UC764000  Acaena pinnatifida var. californica R. F. Hoover 1939-4-21 4053 San Mateo 2 mi. s. Colma Comment
  CAS-BOT-BC451130  Acaena pinnatifida var. californica Elizabeth McClintock; Carlyn Halde 1967-5-14 s.n. San Mateo East facing slope below parking lot; San Bruno Mountains Comment
  CAS-BOT-BC451132  Acaena pinnatifida var. californica W. R. Dudley 1902-5-11 s.n. San Mateo Near Colma; Santa Cruz Peninsula 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
  RSA18356  Acaena pinnatifida var. californica Carl B. Wolf 1929-5-25 3732 San Mateo N of Pigeon Pt, San Mateo Comment
  CAS-BOT-BC219608  Acanthomintha duttonii L. R. Abrams 1920-6-1 7500 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  CAS-BOT-BC219611  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City 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
  POM294370  Acanthomintha obovata subsp. duttonii Dutton, Walker 1915-1 s.n. San Mateo Menlo Park Comment
  RSA70706  Acer macrophyllum L. S. Rose 1950-4-1 50047 San Mateo San Mateo Canyon Comment
  UCSB11438  Acer macrophyllum Olson, Jim 1962-4-15 San Mateo 1 mile east of Portola State Park on Portola State Park Road 243 Comment
  JROH169  Acer negundo John Hunter Thomas 1978-7-8 19258 San Mateo Jasper Ridge Biological Preserve, Stanford University 85 Comment
  JEPS121480  Achillea millefolium Adam C. Schneider with C. Matt Guilliams 2013-4-7 94 San Mateo Crystal Springs Reservoir Comment
  JROH445  Achillea millefolium John H. Thomas 1976-5-26 18148 San Mateo Jasper Ridge Biological Preserve, Stanford University 154 Comment
  JROH447  Achillea millefolium John Hunter Thomas 1980-5-8 19954 San Mateo Jasper Ridge Biological Preserve, Stanford University 124 Comment
  UC1084379  Achillea millefolium G. Thomas Robbins 1937-4-11 76 San Mateo south of, along Skyline Blvd. San Francisco Comment
  UCD18525  Achillea millefolium June McCaskill 1954-5-8 300 San Mateo Moss Beach. Comment
  SEINET10758616  Achillea millefolium Thomas B. Croat 1966-6-20 Croat 1997 San Mateo 1 mile N of Montara, sandy banks along Pacific. Comment
  RSA15315  Achillea millefolium var. californica Carl B. Wolf 1927-4-3 s.n. San Mateo Los Troncos Creek, 2 miles back of Stanford University. Comment
  SBBG34038  Acmispon americanus L. S. Rose 1964-9-5 64071 San Mateo Emerald Lake, W of Redwood City 243 Comment
  JROH2059  Acmispon americanus var. americanus John H. Thomas 1974-10-26 17632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2066  Acmispon americanus var. americanus John Hunter Thomas 1992-7-24 25393 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2070  Acmispon glaber var. glaber D. E. Breedlove 1971-5-31 19376 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake 125 Comment
  JROH5954  Acmispon parviflorus John H. Thomas 1967-5-10 12842 San Mateo Comment
  JROH2079  Acmispon strigosus John H. Thomas 1975-4-18 17787 a San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2082  Acmispon wrangelianus Daniel Cohen 1953-4-11 10 San Mateo Jasper Ridge Biological Preserve, Stanford University; on north shore of Searsville Lake Comment
  JROH2090  Acmispon wrangelianus Duncan M. Porter 1960-5-5 688 San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-6 Comment
  JROH2102  Acmispon wrangelianus John Hunter Thomas 1978-4-25 19152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC391678  Actaea rubra Margaret A. Barry 1937-7-17 197 San Mateo On Coal Mine Ridge 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
  CDA352  Adenocaulon bicolor A. C. Browne 1952-7-13 San Mateo Pescadero Creek. 0 Comment
  CAS-BOT-BC139951  Adenostoma fasciculatum Fred Hemphill 1973-4-15 660 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC139999  Adenostoma fasciculatum Fred Hemphill 1973-5-14 842 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  HSC23963  Adenostoma fasciculatum Mary Katherine Wicksten 1971-6-17 38 San Mateo Huddart Park, Zwierlein Trail Comment
  SEINET8722547 Image available Adenostoma fasciculatum Lewis S. Rose 1941-1 41270 San Mateo Hills w. of Red Wood City, Emerald Lake. Alt. ca. 400 ft. 122 Comment
  CAS-BOT-BC384616  Adiantum aleuticum J. Lovelle 1973-7-29 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC65669  Adiantum jordanii George Oberlander 1950-3-11 512 San Mateo Pilarcitos Canyon Comment
  JROH93  Adiantum jordanii John Hunter Thomas 1982-11-8 21257 D San Mateo Jasper Ridge Biological Preserve, Stanford University. 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
  RSA131266  Aesculus californica Lucile Roush 1917-6-3 s.n. San Mateo Jasper Ridge, Santa Cruz Mountain Peninsula. Comment
  UC615561  Aesculus californica Beryl O. Schreiber 1932-5-29 313 San Mateo near San Mateo Comment
  UCSB17806  Aesculus californica Schulte, John 1963-4-26 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and Santa Cruz Mountains 137 Comment
  CHSC397  Agoseris apargioides V. Holt 1943-4-21 San Mateo San Mateo 30 Comment
  JROH481  Agoseris grandiflora var. grandiflora John H. Thomas 1971-5-30 15976 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5952  Agoseris heterophylla John Rawlings 2017-4-3 2014 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 5 serpentine prairie up-slope from trail 122 Comment
  RSA18497  Agoseris heterophylla var. heterophylla C. B. Wolf 1927-7-14 623 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  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-BC15235  Agoseris hirsuta David D. Keck 1932-5-6 1461 San Mateo near Belmont Comment
  CAS-BOT-BC15250  Agoseris hirsuta A. D. E. Elmer 1903-4-1 4930 San Mateo Cemeteries Comment
  UC311237  Agoseris hirsuta A. D. E. Elmer 1903-4-1 4930 San Mateo Comment
  JEPS82921  Agrostis blasdalei James A. West 1983-8-14 189 San Mateo exposed coastal bluffs ca 2 km s of the Pigeon Point Lighthouse, +/- overlooking Columbia Beach Comment
Read comments
Dec 20 2015
  CDA1702  Agrostis capillaris J. T. Howell 1975-9-25 51509 San Mateo San Bruno Mountain 0 Comment
  JROH4778  Agrostis capillaris John Rawlings 2008-6-25 1044 San Mateo Jasper Ridge Biological Preserve, Stanford University; seven yards from paved road in middle of the blocked-off dirt path leading to Causeway Bridge 105 Comment
  CAS-BOT-BC127465  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo State Highway 1, ca. 5-6 miles south of San Francisco. Comment
  SJSU15804  Agrostis densiflora Toni Corelli 2015-5-3 1192 San Mateo Northern edge of Fitzgerald Marine Reserve, Moss Beach also know as Vallemar Bluff 14 Comment
  UCD37958  Agrostis densiflora Beecher Crampton 1962-6-11 6489 San Mateo San Mateo County, northern city limits of Pacifica, along State Highway 1, just southwest of its junction with Skyline Boulevard. Comment
  JROH4785  Agrostis exarata John Rawlings 2004-5-20 1015 San Mateo Jasper Ridge Biological Preserve, Stanford University. Side of Trail 2 about 250 yards west of the Zoology Cabin foundation. 82 Comment
  JROH5649  Agrostis exarata John Rawlings 2014-5-28 12461246 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry creek bed of San Francisquito Creek at the Dennis Martin site. 71 Comment
  UC1537361  Agrostis exarata Gordon H. True Jr. 1937-10-16 849 San Mateo near Thornton Beach 15 Comment
  CAS-BOT-BC139464  Agrostis hallii Walter Knight; Irja Knight 1965-6-20 s.n. San Mateo San Bruno Mountain. In Crystal Cave Canyon. Comment
  JROH4798  Agrostis pallens Herbert Dengler 1957-6-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. East serp. meadow Comment
  SJSU15959  Agrostis pallens John Rawlings, Ken Hickman 2016-5-26 1835 B San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  UCD53094  Agrostis pallens August L. Hormay 1932-5-29 s.n. San Mateo San Mateo County. Comment
  RSA290667  Agrostis stolonifera Lyman Benson 1937-7-20 8462 San Mateo Menlo Park, San Francisco Bay. Lawn at 736 Partridge Ave. 30 Comment
  JROH4158  Ailanthus altissima John Hunter Thomas 1982-7-2 21055 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing 87 Comment
  JEPS101122  Aira caryophyllea Dean W. Taylor 1991-5-20 11787 San Mateo coastal bluffs near south bank of Pescadero Creek at Highway 1 9 Comment
  RSA87687  Aira caryophyllea Le Roy Abrams 1902-5-4 2405 San Mateo Woodside. Comment
  CAS-BOT-BC138234  Aira caryophyllea var. caryophyllea David D. Keck 1932-5-6 1480 San Mateo Just west of Millbrae Highlands. 50 Comment
  CAS-BOT-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
  JROH4540  Allium amplectens D. E. Breedlove 1971-5-31 19384 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake 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
  SEINET12043950  Allium dichlamydeum H. L. Mason 1921-1 s.n. San Mateo Jasper Ridge near Sand Hell Caves 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
  SJSU657  Allium falcifolium A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville Lake Comment
  CAS-BOT-BC469038  Allium falcifolium Lawrence Beane 1949-4-23 188 San Mateo Hillsides west of Redwood City Comment
  POM196559  Allium lacunosum var. lacunosum H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge near Sand Hill Caves Comment
  CDA928  Allium peninsulare D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .366 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  CAS-BOT-BC170157  Alnus rhombifolia W. R. Dudley 1906-10-3 s.n. San Mateo Border of Pescadero Creek, opposite Svensons old place. Santa Cruz Mountain Peninsula Comment
  JROH1323  Alnus rhombifolia Otto M. Sokol 1953-5-21 100 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam, Searsville Lake Comment
  JROH1326  Alnus rhombifolia John H. Thomas 1971-5-30 15981 San Mateo Jasper Ridge Biological Preserve, Stanford University; along creek, below dam Comment
  SEINET3917721  Alopecurus aequalis Lewis S. Rose 1932-5-3 32209 San Mateo San Bruno.; 0 183 Comment
  CAS-BOT-BC137921  Alopecurus saccatus W. R. Dudley 1910-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. New Grade road above Fritz Patricks. Comment
  UC135837  Amaranthus californicus C. F. Baker 1902-10-20 1855 San Mateo Searsville Comment
  UCR242715  Amaranthus deflexus A. C. Sanders 2012-11-11 40517 San Mateo SF Bay Area, Daly City near Colma, between Junipero Serra Blvd. and San Pedro Rd. on Washington St. 56 Comment
  RSA107065  Amaranthus deflexus L. S. Rose 1956-9-1 56154 San Mateo Atherton 6 Comment
  SJSU7593  Amaranthus deflexus C. A. Staicer 1976-9-26 San Mateo 91 Atherton Lane, Atherton Comment
  SD87531  Ambrosia chamissonis Frank W. Peirson 1925-9-13 6427 San Mateo Rockaway Beach, back of beach Comment
  CAS-BOT-BC44928  Ambrosia chamissonis Lewis S. Rose 1956-8-13 56144 San Mateo Princeton sand dunes 6 Comment
  CAS-BOT-BC44929  Ambrosia chamissonis Lewis S. Rose 1935-9-29 35653 San Mateo Granada 3 Comment
  CAS-BOT-BC136830  Amelanchier utahensis Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge Comment
  CAS-BOT-BC136832  Amelanchier utahensis Elizabeth McClintock; Phillip Wheeler 1967-5-14 s.n. San Mateo Vicinity of fence separating Brisbane from Crocker Estate portion of mountain Comment
  JROH3596  Amelanchier utahensis John H. Thomas 1980-5-6 19935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2942  Ammannia robusta John Hunter Thomas 1982-11-6 21214 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach, edge of Searsville Lake Comment
  RSA385132  Ammophila arenaria Edith A. Purer 1933-7-27 18181 San Mateo 2 mi. S of Pigeon Pt. Comment
  JROH1344  Amsinckia menziesii John H. Thomas 1966-4-29 11589 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7062815  Amsinckia spectabilis A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach west of Pescadero. UTM Zone 10, 551765mE, 4121313mN. (WGS84/NAD83). 0 Comment
  RSA116698  Anagallis arvensis W. R. Dudley 1900-3-17 s.n. San Mateo Bank near Ocean, South slope montara mts. Comment
  JEPS17915  Anaphalis margaritacea Rimo Bacigalupi 1955-8-4 5448 San Mateo at, just n of Montara Point Lighthouse Montara Comment
  CAS-BOT-BC64291  Anaphalis margaritacea Delzie Demaree 1938-8-20 18061 San Mateo South San Francisco Comment
  CAS-BOT-BC391913  Anemone grayi J. H. Thomas 1954-4-15 3905 San Mateo About 1 1/2 mile SW of Searsville Lake 228 Comment
  CHSC23309  Angelica hendersonii Robert F. Thorne; P. Everett 1965-8-1 35077 San Mateo 21.5 mi. S of Golden Gate Bridge; on W-facing sea bluff. 68 Comment
  CAS-BOT-BC221453  Angelica hendersonii Saichi Kawahara 1968-6-15 427 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  UC174202  Angelica hendersonii Katharine Brandegee San Mateo Tobin Comment
Read comments
Apr 5 2008
  JROH188  Angelica tomentosa John Hunter Thomas 1985-5-22 23676 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132666  Angelica tomentosa var. tomentosa A. D. E. Elmer 1903-07 4998 San Mateo Crystal Springs Lake, southern end Comment
  CAS-BOT-BC273181  Anisocarpus madioides Josephine D. Randall 1907-6-29 91 San Mateo Santa Cruz Peninsula. Portola Valley Comment
  UC830895  Anisocarpus madioides Lewis S. Rose 1941-7-2 41287 San Mateo Kings Mountain 548 Comment
  CAS-BOT-BC273179  Anisocarpus madioides W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Creek near Lumber Camp Comment
  SEINET5539055  Antennaria luzuloides H. S. Gentry 1931-1 84 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC102288  Anthemis cotula Phillip Wheeler 1965-6-8 s.n. San Mateo Old County Road-Brisbane Comment
  RSA101037  Anthemis cotula G. Oberlander 1954-5-21 154 San Mateo Upper San Mateo Creek, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC280673  Anthoxanthum nitens John H. Thomas 1974-5-9 17330 San Mateo San Pedro Valley, Northern part of county, inland from Pacifica 152 Comment
Read comments
Jul 28 2017
  JROH3600  Aphanes occidentalis John H. Thomas 1963-4-17 10036 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near the "riders shack" at the Searsville end of the ridge Comment
  JROH3609  Aphanes occidentalis John Hunter Thomas 1983-4-14 21405 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC555316  Aphanes occidentalis Herbert L. Mason 1927-4-23 3688 San Mateo Summit of road between La Honda and Pescadero Creek Comment
  SEINET11080240  Apium leptophyllum J. T. Howell 1975-9-13 51507 San Mateo Burlington, Hillside Street just W of El Camino. Comment
  RSA181419  Apocynum cannabinum James I. McMurphy 1908-8-20 s.n. San Mateo Ravine near shore this side of Crystal Springs Comment
  CAS-BOT-BC405856  Aquilegia formosa George Oberlander 1949-4-30 66 San Mateo Pilarcitos Canyon Comment
  POM150408  Aquilegia formosa var. truncata C. F. Baker 1902-3-30 422 San Mateo Crystal Springs Lake Comment
  OBI15221  Arabis blepharophylla Lewis S. Rose 1961-4-5 61032 San Mateo San Bruno Mts 366 Comment
  POM143334  Arabis blepharophylla A. D. E. Elmer 1903-04 4936 San Mateo San Bruno Hills Comment
  UC676755  Arabis blepharophylla Reed C. Rollins 1941-3-22 2950 San Mateo 2 mi se Daly City; San Bruno Hills Comment
  CAS-BOT-BC128668  Arbutus menziesii Elizabeth McClintock; Walter Knight; Irja Knight 1964-9-11 s.n. San Mateo South of Brisbane on side hill by Frontage Road - San Bruno Mountain Comment
  CAS-BOT-BC304414  Arbutus menziesii A. D. E. Elmer 1903-5-1 4515 San Mateo Searsville Lake Comment
  JROH1915  Arbutus menziesii A. D. E. Elmer 1903-5-1 4515 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  LA42267  Arctostaphylos andersonii E. C. Sutliffe; 1934-2-2 sn San Mateo Kings Mountain Comment
  UCD50391  Arctostaphylos andersonii Robert E. Preston 2001-6-1 1537 San Mateo Ca. 7 mi. nw of Boulder Creek. 658 Comment
  SEINET11987325  Arctostaphylos andersonii J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4206 San Mateo from Strybing Arboretum, Golden Gate Park, San Francisco, originally from King's Mountain Comment
  CAS-BOT-BC23502  Arctostaphylos crustacea A. D. E. Elmer 1903-5-1 4558 San Mateo King's Mountain Comment
  CAS-BOT-BC23506  Arctostaphylos crustacea W. R. Dudley 1893-4-1 s.n. San Mateo Hills back of the McDonough Ranch near Portola. Comment
  CAS-BOT-BC23544  Arctostaphylos crustacea J. I. McMurphy 1906-3-9 7 San Mateo King's Mt., Santa Cruz Mts. 487 Comment
  JROH1940  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1979-5-10 19547 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC876560  Arctostaphylos crustacea subsp. crustacea Myrtle Paulson 1914-10-24 San Mateo Jasper Ridge Santa, Cruz Mountain Peninsula. Comment
  RSA681641  Arctostaphylos edmundsii Annuschka Deb 1989-1-27 17 -a San Mateo Woodside. Comment
Read comments
Dec 6 2014
  SEINET11987278  Arctostaphylos glandulosa W. Knight, Knight, I.; McClintock, E.; Sigg, J. 1981-1 4038 San Mateo Strybing Arboretum in San Francisco, originally from Buckeye Canyon, San Bruno Mountain Comment
  SEINET11988205  Arctostaphylos glandulosa W. Knight, Raiche, R. 1982-1 4420 San Mateo San Bruno Mountain, Buckeye Canyon on Oak Ridge 102 Comment
  CAS-BOT-BC24495  Arctostaphylos imbricata Peter H. Raven 1950-2-25 1383 San Mateo W. end of ridge behind NBC station, San Bruno Mtns. 457 Comment
  OBI14661  Arctostaphylos imbricata Robert F. Hoover 1964-4-24 8742 San Mateo San Bruno Mt Comment
  RSA195588  Arctostaphylos imbricata John H. Thomas 1961-5-7 9319 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  RSA51443  Arctostaphylos imbricata P. H. Raven 1950-2-25 1383 San Mateo W end of ridge behind NBC Television Station, San Bruno Mountains 457 Comment
  SBBG32379  Arctostaphylos imbricata L. S. Rose 1961-3-2 61014 San Mateo San Bruno Hills 365 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
  UCD51754  Arctostaphylos montaraensis Roman Gankin 1966-5-17 740 B San Mateo On east-facing slopes of Montara Mountain. Comment
  SEINET11993723  Arctostaphylos montaraensis W. Knight, Knight, I.; Wells, P. V. 1986-1 5373 San Mateo San Bruno Mountain 343 Comment
  CAS-BOT-BC39819  Arctostaphylos pacifica Arthur Menzies; Elizabeth McClintock 1963-2-16 s.n. San Mateo San Bruno Mountain - slope southeast of parking lot just below top of mountain. Comment
  CAS-BOT-BC44707  Arctostaphylos regismontana Walter Knight; Irja Knight 1964-9-14 846 San Mateo On Peak Mt. 304 Comment
  CAS-BOT-BC44738  Arctostaphylos regismontana Carl B. Wolf 1930-11-6 1067 San Mateo 2 miles north of summit of Kings Mt., Skyline Blvd. 640 Comment
  CAS-BOT-BC44739  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain Comment
  POM87727  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain. Comment
  UC565404  Arctostaphylos regismontana Charles M. Belshaw 1936-1-25 1467 San Mateo Kings Mountain Rd six mi w Woodside; South Coast Range 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
  POM222790  Arctostaphylos tomentosa subsp. crustacea S. S. Berry 1909-2-27 s.n. San Mateo Jasper Ridge. 168 Comment
  RSA636841  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24653 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636847  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24650 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120104  Arctostaphylos tomentosa subsp. crustacea Beryl Schreiber 1938-10-16 2565 San Mateo King's Mountain Santa Cruz Quadrangle 609 Comment
  POM285159  Arctostaphylos tomentosa subsp. tomentosiformis Lyman Benson 1928-12-15 834 San Mateo La Honda 457 Comment
  POM367466  Arctostaphylos tomentosa subsp. tomentosiformis L. S. Rose 1949-3-18 49006 San Mateo Hills west of Belmont. 91 Comment
  JEPS26637  Arctostaphylos uva-ursi J. Roof and D. L. Harmon 1961-4-7 San Mateo spur that lies directly n summit; San Bruno Mountain 365 Comment
  SBBG83967  Arctostaphylos uva-ursi R. Gankin 1959-3-25 328 San Mateo San Bruno Mtn, S San Francisco, 0.25 mi E of KRON TV transmitter Comment
  UCD52042  Arctostaphylos uva-ursi subsp. coactilis Roman Gankin 1959-3-25 328 San Mateo Near ridge of San Bruno Mountain, South San Francisco, San Mateo County, California. 1/4 mi. e. of KRON TV transmitter. Comment
  CDA37698  Arctotheca calendula Breckenridge/Filippini 2006-5-8 s.n. San Mateo Pescadero; Bean Hollow Rd. 0 Comment
  CAS-BOT-BC102182  Argyranthemum foeniculaceum Elizabeth McClintock 1988-6-7 s.n. San Mateo San Bruno Comment
  CAS-BOT-BC400411  Aristolochia californica Elizabeth McClintock; Philip Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain. Along the fence separating Brisbane from the Crocker Estate Company property above the southern ravine of Buckeye Canyon Comment
  CAS-BOT-BC520412  Armeria Daniel Cohen 1953-5-9 88 San Mateo Between San Gregorio and Pescadero Comment
  CAS-BOT-BC47705  Armeria maritima subsp. californica Ray H. Yanis 1951-5-12 99 San Mateo Pescadero 30 Comment
  RSA18369  Armeria maritima subsp. californica Carl B. Wolf 1927-6-29 539 San Mateo South of Pebble Beach near Pescadero. Comment
  CAS-BOT-BC82513  Arnica discoidea L. R. A. 1902-5-20 2464 San Mateo [King's] Kings Mountain Comment
  UCR224656  Arrhenatherum elatius J. Eide 2009-7-20 PDR- 1481186 San Mateo Santa Cruz Mountains; San Bruno Mountain, in the vicinity of San Bruno Comment
  JROH517  Artemisia californica John H. Thomas 1978-9-24 19335 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA116787  Artemisia californica L. R. Abrams 1902-12-23 3098 San Mateo Jasper Ridge, Searsville Comment
  CAS-BOT-BC93929  Artemisia douglasiana Peter H. Raven 1957-9-1 11296 San Mateo Coastal bluffs 1.1 mi. s. of Pigeon Point Lighthouse Comment
  JROH519  Artemisia douglasiana John Hunter Thomas 1981-9-24 20744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC93638  Artemisia pycnocephala C. B. Wolf 1930-11-5 1062 San Mateo 4 miles south of Pescadero 7 Comment
  CAS-BOT-BC93639  Artemisia pycnocephala C. B. Wolf 1930-11-5 1062 San Mateo 4 miles south of Pescadero 7 Comment
  POM212012  Artemisia pycnocephala C. B. Wolf 1930-11-5 1062 San Mateo 4 mi. S of Pescadero. 8 Comment
  CAS-BOT-BC146256  Arundo donax Malcom A. Nobs; S. Galen Smith 1949-8-25 1574 San Mateo South of Rockaway Beach. Comment
  CAS-BOT-BC400510  Asarum caudatum A. D. E. Elmer 1903-6-1 4421 San Mateo Butano Creek Comment
  POM165704  Asarum caudatum A. D. E. Elmer 1903-06 s.n. San Mateo Butano Creek Comment
  CAS-BOT-BC400512  Asarum caudatum W. R. Dudley 1898-4-24 s.n. San Mateo Santa Cruz Mountain Peninsula. Near El Corte de Madera Creek Comment
  JROH429  Asclepias fascicularis John H. Thomas 1973-6-10 16826 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH432  Asclepias fascicularis John H. Thomas 1974-6-27 17444 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH433  Asclepias fascicularis John H. Thomas 1974-8-11 17508 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM58697  Aster chilensis Edward L. Greene 1902-9-2 1550 San Mateo Crystal Springs Lake Comment
  UCR121548  Aster chilensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 5009 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  POM87776  Aster radulinus L. R. Abrams 1902-9-28 3004 San Mateo New Grade Road- Portola Comment
  CAS-BOT-BC186759  Astragalus gambelianus Margaret A. Barry 1937-5-8 60 San Mateo On Coal Mine Ridge Comment
  JROH1987  Astragalus gambelianus Duncan M. Porter 1960-5-5 675 San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 Comment
  JROH1991  Astragalus gambelianus John H. Thomas 1974-4-24 17184 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA60155  Astragalus gambelianus Lois E. James 1946-4-16 1741 San Mateo Hills back of Redwood City. High Road off Woodside Road. Comment
  UC903415  Astragalus gambelianus Lois E. James 1946-4-16 1740 San Mateo high road off Woodside Road hill back Redwood City; hills back of Redwood City Comment
  SD48960  Astragalus gambelianus Louis E. James 1947-4-11 1758 San Mateo Hills back of Redwood City. Comment
  CAS-BOT-BC177965  Astragalus nuttallii var. virgatus John Thomas Howell; Alice Eastwood 1938-6-26 6063 San Mateo Arroyo de los Frijoles Comment
  CAS-BOT-BC194430  Astragalus nuttallii var. virgatus Copeland 1905-6-3 3299 San Mateo Montara Pt. Comment
  CAS-BOT-BC177972  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks in soil. Comment
  SJSU15402  Astragalus pycnostachyus var. pycnostachyus Toni Corelli 2011-8-31 711 b San Mateo Pescadero State Beach and Marsh Natural Preserve, Butano Trail, between Butano Creek and Pescadero Creek Road 4 Comment
  CAS-BOT-BC68678  Athyrium filix-femina var. californicum Elizabeth McClintock; Baki Kasapligil; Walter Knight; Irja Knight 1967-7-18 s.n. San Mateo San Bruno Mountain - Near old quarry at mouth of Colma Canyon. Comment
  POM143746  Athysanus pusillus C. F. Baker 1902-4-6 456 San Mateo Crystal Springs Lake. Comment
  POM164684  Atriplex californica C. F. Baker 1902-10-1 1743 San Mateo Pillar Point. Comment
  POM195304  Atriplex californica H. M. Hall 1922-5-17 11805 San Mateo Point Montara. Comment
  CHSC57076  Atriplex leucophylla Steven Triano 1988-5-24 201 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  RSA478327  Atriplex leucophylla L. S. Rose 1933-7-20 33305 San Mateo Granada. Comment
  CAS-BOT-BC146078  Avena barbata John H. Thomas 1958-3-19 7048 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 91 Comment
  RSA291577  Avena barbata T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km. east of the San Gregorio. Comment
  JROH5780  Avena fatua John Rawlings 2016-4-26 1756 San Mateo Jasper Ridge Biological Preserve, Stanford University. On birder transect path on ridge-top near coast live oaks just south of serpentinite contact. 192 Comment
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Oct 31 2016
  JROH5754  Avena fatua J. C. Gaither 1982-4-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Sand Hill Road Gate, old motorcycle racetrack. Comment
  JROH2  Azolla John Hunter Thomas 1980-11-12 20167 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  RSA0025138  Baccharis douglasii Peter Rubtzoff 1976-10-5 8908 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Westernmost part of the area on slope across fence. Comment
  JROH538  Baccharis glutinosa John Hunter Thomas 1979-9-9 19731 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  UCR256527  Baccharis glutinosa Peter Rubtzoff 1976-10-5 8908 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC99515  Baccharis pilularis A. D. E. Elmer 1903-2-1 4576 San Mateo Portola Comment
  CAS-BOT-BC99517  Baccharis pilularis Carl B. Wolf 1930-11-5 1807 San Mateo 4 miles south of Pescadero 7 Comment
  SEINET11861776  Baccharis pilularis Unknown 1933-8-4 10464 San Mateo along Bayshore Highway Comment
  SEINET11861777  Baccharis pilularis Unknown 1929-10-17 7293 San Mateo Kings Mt Comment
  CAS-BOT-BC16625  Barbarea orthoceras Fred Hemphill 1973-3-17 712 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 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-BC16632  Barbarea orthoceras Catherine A. Toschi 1963-3-17 63 :63 San Mateo East slope San Bruno Mountains below radio station. 213 Comment
  CAS-BOT-BC16636  Barbarea orthoceras Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point. Comment
  JROH1445  Barbarea orthoceras John Hunter Thomas 1980-5-6 19933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC56593  Bellardia trixago Steven Triano 1988-5-24 174 San Mateo Along w side of Sand Hill Road 0.5 mi s of its jct. with Whiskey Hill Road and 2.5 mi s of Woodside. 121 Comment
  JROH3925  Bellardia trixago John Hunter Thomas 1986-6-7 24083 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  POM312413  Berula erecta S. Galen Smith, Malcolm A. Nobs 1949-8-25 1561 San Mateo Shark Park Comment
  CAS-BOT-BC100320  Blennosperma nanum var. robustum A. D. E. Elmer 1903-4-1 4521 San Mateo San Bruno Hills Comment
  POM32550  Boisduvalia densiflora var. densiflora A. D. E. Elmer 1903-06 4273 San Mateo Crystal Springs Lake. Comment
  SJSU14136  Borago officinalis R. T. Ross 1975-3-2 San Mateo S side, Pillar Point Harbor, El Granada Comment
  CAS-BOT-BC95346  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo La Honda Comment
  POM133483  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo La Honda. Comment
  CAS-BOT-BC95340  Bowlesia incana Miss E. Cannon 1898-3-26 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC389730  Boykinia occidentalis J. Lovelle 1973-7-8 9 San Mateo Menlow [Menlo] Pk. Comment
  JROH4864  Brachypodium distachyon John Hunter Thomas 1992-5-14 25221 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA36478  Brachypodium sylvaticum Ellen Gartside 2011-9-1 s.n. San Mateo Woodside; base of slope just above Grandview Drive. Comment
  SEINET244250 Image available Brachypodium sylvaticum K. Melo 2003-12-1 PDR 138951 San Mateo Hwy 84 at Grandview Terrace and Schilling Lake. Martin Creek drainage. Comment
  CAS-BOT-BC28047  Brassica fruticulosa Elizabeth McClintock; Paul Reeberg 1989-2-4 s.n. San Mateo San Bruno Mountains. Near horse corral, off Bayshore. Comment
  JROH1456  Brassica nigra John H. Thomas 1967-3-26 12419 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC36670  Brassica oleracea L. R. Abrams; Ira L. Wiggins 1939-6-3 439 San Mateo 2 miles north of Pigeon Point Lighthouse. Comment
  JROH1469  Brassica rapa John Hunter Thomas 1981-4-7 20295 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Whiskey Hill and Sand Hill Road gate Comment
  CAS-BOT-BC36790  Brassica rapa D. D. Davis 1903-3-1 s.n. San Mateo Dennis Martin Place. Comment
  UCD57161  Briza maxima S. S. Tillett; I. Sternback 1956-6-25 551 San Mateo Skyline Drive. 487 Comment
  CAS-BOT-BC145335  Briza minor Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  CAS-BOT-BC145343  Briza minor A. D. E. Elmer 1903-5-1 4912 San Mateo Crystal Springs Lake. Comment
  CHSC57109  Briza minor Steven Triano; Josephine Boyd 1988-5-24 197 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  JROH4886  Briza minor John Hunter Thomas 1981-4-23 20469 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD34509  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  SEINET10868322  Briza minor Alan A. Beetle 1941-4-20 Beetle 1738 San Mateo Near San Carlos, rich heavy loam, in open field. Comment
  CAS-BOT-BC484351  Brodiaea elegans subsp. elegans W. R. Dudley 1893-5-27 s.n. San Mateo By Arey's residence near Stanford University Comment
  JROH4591  Brodiaea terrestris subsp. terrestris John Hunter Thomas 1981-4-23 20481 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1442900  Brodiaea terrestris subsp. terrestris Theodore F. Niehaus 1965-3-23 364 San Mateo e of Crystal Springs (100 yards e of San Mateo Juvenile Probation Center) Comment
  CAS-BOT-BC483182  Brodiaea terrestris subsp. terrestris W. R. Dudley 1906-5-8 s.n. San Mateo By road south of Crystal Springs Lake Comment
  CAS-BOT-BC483187  Brodiaea terrestris subsp. terrestris Elizabeth McClintock; Philip C. Wheeler 1967-6-11 s.n. San Mateo Radio Road, San Bruno Mountain Comment
  CAS-BOT-BC144140  Bromus W. R. Dudley 1899-6-11 s.n. San Mateo San Francisco. Near Railroad Station house, Sutro Heights. Comment
  JROH4967  Bromus berteroanus H. J. Dengler 1961-4-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Lower edge of gully near the last or northwest-most enclosure, just N. of serpentine Comment
  CDA20476  Bromus carinatus R. Garcia 2004-5-4 PDR 1299033 San Mateo San Francisco Bay Area; 2091 Portola Rd, Woodside. 0 Comment
  UCD58137  Bromus carinatus Lewis S. Rose 1963-4-27 63003 San Mateo Skyline Blvd. 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-BC148981  Bromus carinatus var. carinatus Peter H. Raven 1950-6-3 2253 San Mateo Woods around San Andreas Lake. 121 Comment
  CAS-BOT-BC149011  Bromus carinatus var. carinatus W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Between Colma and Lake Merced. Comment
  CAS-BOT-BC148991  Bromus carinatus var. carinatus W. R. Dudley 1899-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Head of San Mateo Creek. Comment
  CAS-BOT-BC148768  Bromus carinatus var. marginatus Catherine A. Toschi 1963-2-23 63 :29 San Mateo North slope San Bruno Mountains above Crocker Avenue. 152 Comment
  CAS-BOT-BC156173  Bromus catharticus John H. Thomas 1961-8-27 9697 San Mateo Colma. Near intersection of El Camino Real and F Street. 45 Comment
  CDA31079  Bromus catharticus Robin Breckenridge, K. Filippini 2010-2-17 PDR# 1463753 San Mateo Pescadero: Bean Hollow Road (across from Bay Flower Company). 0 Comment
  CAS-BOT-BC155725  Bromus diandrus John H. Thomas 1963-5-20 10136 San Mateo Ano Nuevo Island, about 0.5 mile off shorea nd about 20 miles northwest of Santa Cruz. Comment
  CAS-BOT-BC210145  Bromus diandrus Peter Rubtzoff 1977-6-21 9056 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. 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
  JROH4917  Bromus hordeaceus John H. Thomas 1963-5-12 10080 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4920  Bromus hordeaceus John H. Thomas 1967-5-12 12889 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4930  Bromus hordeaceus John Rawlings 2010-4-28 1092 San Mateo Jasper Ridge Biological Preserve, Stanford University; on slope south of the visitor parking lot 119 Comment
  CAS-BOT-BC162409  Bromus laevipes Josephine D. Randall 1907-6-5 155 San Mateo Santa Cruz Peninsula. Portola Valley. Comment
  CAS-BOT-BC162310  Bromus madritensis John H. Thomas 1961-5-14 9384 A San Mateo Just north of dam on San Mateo Creek. 121 Comment
  CAS-BOT-BC161751  Bromus rubens Phillip C. Wheeler 1965-5-8 s.n. San Mateo San Bruno Mountain. Sierra Point. Along the bay. Comment
  OBI22365  Bromus sitchensis Lewis S. Rose 1963-4-27 63002 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  JEPS26847  Bromus vulgaris Rimo Bacigalupi with J. H. Thomas and L. Heckard 1961-5-23 7710 San Mateo 1/4 mi w of crossing with Skyline Boulevard (along Alpine Road); Alpine Road 685 Comment
  SEINET3921935  Bromus willdenowii Robert A. Norris 1984-5-9 4730 San Mateo By Olivet Memorial Park Throughway, Colma.; 0 Comment
  CAS-BOT-BC233705  Buddleja davidii J. H. Thomas 1958-6-26 7288 San Mateo Along Skyline Blvd., about 0.3 miles north of Pulgas water temple. 91 Comment
  CAS-BOT-BC185144  Calamagrostis nutkaensis H. L. Mason 1921-5-29 s.n. San Mateo Near Arroyo de Las Frijoles. Comment
  HSC9414  Calamagrostis nutkaensis C. B. Wolf 1927-6-4 San Mateo S of Pescadero Comment
  JEPS34469  Calamagrostis nutkaensis L. R. Heckard and R. Bacigalupi 1963-7-2 1358 San Mateo trail to Montara Peak (nw slope) above old county road 304 Comment
  SEINET10521069  Calamagrostis nutkaensis Adolph D. E. Elmer Elmer 5040 San Mateo San Pedro, Comment
  CAS-BOT-BC438538  Calandrinia ciliata John H. Thomas 1971-5-2 15805 San Mateo Near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City. 304 Comment
  JROH3328  Calandrinia menziesii John Hunter Thomas 1981-4-5 20263 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC492214  Calochortus albus Fred Hemphill 1973-5-6 757 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  UC672162  Calochortus albus Herbert L. Mason 1924-5-18 1017 San Mateo Jasper Ridge, near zoology club Jasper Ridge Comment
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Sep 19 2011
  UCR104959  Calochortus albus Tom Paradise 1993-5-3 11 San Mateo San Francisco Bay area, Woodside; Huddart County Park, along Kings Mountain Road, 3 - 4 mi east of Skyline Blvd. 116 Comment
  CAS-BOT-BC492209  Calochortus albus Elmer I. Applegate 1895-4-8 727 San Mateo Page Mill Creek, above Stanford University Comment
  JROH4619  Calochortus argillosus John H. Thomas 1962-5-31 9893 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4637  Calochortus luteus John Hunter Thomas 1981-5-25 20628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD27832  Calochortus maweanus Carl B. Wolf 1929-5-22 3722 San Mateo Santa Cruz Mountains, near base of La Honda Grade. 182 Comment
  UC1134540 Image available Calochortus venustus N. Carlson 1935-6-20 74 San Mateo at Head (or ridge) of Oil and Slate Creek Santa Cruz Quad. 670 Comment
  CAS-BOT-BC494045  Calochortus venustus Cherie Wetzel 1969-6-20 860 San Mateo Serpentine near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  JROH575  Calycadenia multiglandulosa John Hunter Thomas 1988-8-21 24563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC662579  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo hills w Redwood City; Emerald Lake 120 Comment
  RSA10276  Calystegia purpurata H. A. Barker 1927-5-14 676 San Mateo North of Half Moon Bay. Comment
  CAS-BOT-BC224654  Calystegia purpurata subsp. purpurata Josephine D. Randall 1907-7-24 105 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC224661  Calystegia purpurata subsp. purpurata James McMurphy 1905-9-15 s.n. San Mateo Goat Ranch, near Stanford University Comment
  SD38589  Calystegia soldanella Edith A. Purer 1933-7-27 5354 San Mateo Pigeon Point Comment
  CAS-BOT-BC436445  Calystegia subacaulis Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain, east of quarry Comment
  SD38402  Calystegia subacaulis Edith A. Purer 1933-5-30 3641 San Mateo Spring Valley Lakes. Comment
  RSA369186  Camassia leichtlinii subsp. suksdorfii E. S. Spalding 1923-8-3 s.n. San Mateo Pulgas Tunnel, east side. Comment
  HSC16511  Camissonia ovata P. A. Murphy 1965-4-12 33 San Mateo 2 mi. from Half Moon Bay on the Higgin's Canyon Rd. 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
  CHSC22126  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Robert A. Schlising; Glenn Keator 1962-2-3 2042 San Mateo Coast Ranges. Sand dunes along Hwy 1, 3.9 mi N of jct with Bonnie Doon Road. Comment
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Sep 4 2011
  JROH1476  Capsella bursa-pastoris John Hunter Thomas 1983-4-5 21324 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  CAS-BOT-BC37667  Cardamine californica LeRoy Abrams 1902-3-16 2274 San Mateo Kings Mountain Road. Comment
  CAS-BOT-BC37677  Cardamine californica A. D. E. Elmer 1903-4-1 4468 San Mateo Portola. Comment
  HSC23887  Cardamine californica Mary Katherine Wicksten 1971-7-7 158 San Mateo Huddart Park, along road to family campground. Comment
  HSC6686  Cardamine californica P. A. Murphy 1965-4-16 37 San Mateo 6 mi. from Half Moon Bay in Hatches Woods Comment
  SEINET12004998  Cardamine integrifolia G. A. McCallum 1933-1 s.n. San Mateo back of Stanford Campus Comment
  CAS-BOT-BC37984  Cardamine oligosperma John H. Thomas 1956-4-7 5612 B San Mateo Jasper Ridge, about 3.5 miles southwest of Stanford University. 182 Comment
  CAS-BOT-BC37992  Cardamine oligosperma Margaret A. Barry 1937-5-15 107 San Mateo Coal Mine Ridge. Comment
  JROH1493  Cardamine oligosperma John H. Thomas 1968-5-17 14182 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC37976  Cardamine oligosperma Walter Knight; Irja Knight 1965-3-21 959 San Mateo San Bruno Mountain. Ramanzoffia Ravine. 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
  JROH584  Carduus tenuiflorus D. E. Breedlove 1971-5-31 19385 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC18186  Carex W. R. Dudley 1899-4-13 s.n. San Mateo San Francisquito Creek below Cedro Cottage Bridge, Stanford University. Comment
  NY38978  Carex aequa E. L. Greene 1902-5-10 811 San Mateo Crystal Springs Lake Comment
  SEINET10585498  Carex aquatilis Adolph D. E. Elmer Elmer 4428 San Mateo Crystal Springs Lake. Comment
  JROH4324  Carex bolanderi John Rawlings 2010-5-19 1050 A San Mateo Jasper Ridge Biological Preserve, Stanford University; 5 yards north (lakeside) of Leonard's Bridge 106 Comment
  UC767142  Carex bolanderi R. F. Hoover 1940-9-1 4547 San Mateo La Honda summit Comment
  JEPS109523  Carex brevicaulis Dean W. Taylor 1992-3-19 12338 b San Mateo Bean Hollow, on coastal bluff ca. 400 m n along the coast from the parking area on the beach side of Highway 1 alingment Comment
  CAS-BOT-BC18924  Carex densa John Thomas Howell 1938-5-1 13786 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC18941  Carex densa W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Summit Springs, near King's Mountain. Comment
  JROH4334  Carex densa John Rawlings, Carol Zabel 2005-6-13 0902 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Trail 1 (creek side) before entering wooded area and Santa Barbara sedge area walking downstream. 87 Comment
  UC824434  Carex densa W. R. Dudley 1896-4-4 San Mateo near Summit Springs, Kings Mountain Comment
  CAS-BOT-BC18943  Carex densa W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Above keepers house, San Andreas Reservoir. Comment
  RSA304146  Carex densa J. T. Howell 1938-5-1 13785 San Mateo Near South San Francisco. Comment
  UCD140267  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4327 San Mateo Visatacion Valley. Comment
  UCD165066  Carex densa Peter Rubtzoff 1975-5-21 7976 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4343  Carex globosa John Hunter Thomas 1992-4-23 25152 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods. Comment
  SEINET4291981 Image available Carex harfordii A. L. Hipp, Pollock, J 1999-1 ah 282 San Mateo Marsh at the mouth of Pescadero Creek, near Pescadero State Beach. North pond, along the edge of trail. Comment
  UC70631  Carex nudata J. Burtt Davy 1893-6-17 791 San Mateo Belmont Comment
  CAS-BOT-BC119344  Carex obnupta J. H. Thomas 1959-4-4 7658 San Mateo Ca 0.7 mi S of Gazos Creek. Ca 6.5 mi S from Pescadero. 45 Comment
  CAS-BOT-BC119343  Carex obnupta Walter Knight; Irja Knight 1963-10-7 323 San Mateo Cow Trough Ravine. San Bruno Mt. Comment
  JROH4361  Carex subbracteata W. Lennihan 1989-5-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Mapache Trail. Comment
  RSA127081  Carex subbracteata John H. Thomas 1959-4-4 7657 San Mateo About 0.7 miles S. of Gazos Creek. About 6.5 miles southward from Pescadero. 46 Comment
  RSA88835  Carex subbracteata Alice Eastwood, John Thomas Howell, J. W. Stacey 1938-4-24 5245 San Mateo Half Moon Bay. Comment
  UC618444  Carex subbracteata John Thomas Howell 1938-5-1 13783 San Mateo near South San Francisco Comment
  UCR279903  Carex subbracteata Peter Rubtzoff 1975-5-21 7975 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  RSA100974  Carex subbracteata G. Oberlander 1950-4-22 633 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  SEINET10750022  Carex subbracteata Alice Eastwood, John Thomas Howell; J. W. Stacey 1938-4-24 Eastwood 5245 San Mateo Half Moon Bay. Comment
  POM193758  Carex tumulicola W. R. Dudley 1894-05 s.n. San Mateo Between Woodside and Crystal Springs Lake. Comment
  CHSC20700  Carpobrotus edulis Robert A. Schlising 1963-2-23 2433 San Mateo 21 miles north of Davenport along Highway 1. Comment
  UC32963  Carthamus lanatus F. T. Bioletti 1892-7-31 San Mateo South San Francisco Comment
  JEPS88831  Castilleja T. I. and F. M. Chuang 1991-7-1 7850 San Mateo 0.8 mi n San Gregorio Beach 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-BC249187  Castilleja affinis James McMurphy 1902-4-6 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC249192  Castilleja affinis David D. Keck 1940-5-15 5037 San Mateo Upper Crystal Springs Lake, east side 100 Comment
  POM283543  Castilleja affinis Lyman Benson 1930-4-6 2039 San Mateo Moss Beach. 15 Comment
  RSA425889  Castilleja affinis Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC249182  Castilleja affinis Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. At Flower Garden adjacent to April Brook Comment
  SD38139  Castilleja affinis Delzie Demaree 1932-4-9 3615 San Mateo Woods, Gov. Rolf Estate Comment
  JEPS15585  Castilleja affinis subsp. affinis G. Thomas Robbins 1956-8-18 3741 San Mateo immediately n mouth of Butano Creek (nw of Pescadero) Comment
Read comments
Feb 28 2011
  JROH3947  Castilleja affinis subsp. affinis John H. Thomas 1981-4-23 20467 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3952  Castilleja affinis subsp. affinis John Hunter Thomas 1986-4-18 23959 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1301181  Castilleja affinis subsp. affinis Helen K. Sharsmith 1963-2-16 5147 San Mateo Thornton Beach; San Francisco Bay Region Comment
  UC1537571  Castilleja affinis subsp. affinis Gordon H. True Jr. 1936-4-5 389 San Mateo between San Gregorio and Pescadero 152 Comment
  JEPS103888  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-6 7862 San Mateo 3 mi E of Fort Bragg, on route 20 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
  JEPS11933  Castilleja ambigua subsp. ambigua F. W. Pennell and D. D. Keck 1940-5-15 25427 San Mateo Burlingame, Route 101 Burlingame 0 Comment
  POM190538  Castilleja ambigua subsp. ambigua D. D. Keck 1932-4-29 1453 San Mateo Burlington - San Mateo city limits, Bayshore Highway. Along San Francisco Bay. Comment
  RSA408815  Castilleja ambigua subsp. ambigua Francis W. Pennell, D. D. Keck 1940-5-15 25427 San Mateo Route 101. Burlingame. 0 Comment
  JROH3972  Castilleja densiflora subsp. densiflora D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  UC1012312  Castilleja densiflora subsp. densiflora F. W. Pennell and D. D. Keck 1940-5-15 25425 San Mateo 4 mi w Burlingame (Route 101) 152 Comment
  UC1063459  Castilleja exserta H. S. Yates 1935-5-8 5204 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  UC406904  Castilleja exserta subsp. latifolia David D. Keck 1927-6-10 395 San Mateo Montara Point; Radio Station 0 Comment
  CAS-BOT-BC32675  Castilleja franciscana Francis Whittier Pennell; David Daniels Keck 1940-5-15 25420 San Mateo East of upper Crystal Springs Lake, SW of San Mateo 91 Comment
  RSA294162  Castilleja franciscana Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4228 San Mateo Along footpath 70 ft above a marshy lagoon border, N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  CAS-BOT-BC243832  Castilleja latifolia Walter Knight 1964-9-14 829 San Mateo Peak Mt., Montara Range Comment
  CAS-BOT-BC243841  Castilleja latifolia John Thomas Howell 1933-4-9 10969 San Mateo Coastal hillside between Pescadero and Pigeon Pt. Comment
  CAS-BOT-BC243837  Castilleja latifolia Alice Eastwood 1914-10-1 s.n. San Mateo Mussel Rock Comment
  JROH3989  Castilleja rubicundula subsp. lithospermoides L. R. Abrams 1934-4-18 13568 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH3994  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1961-4-8 9072 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4005  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1982-4-30 20879 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4010  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1989-5-11 24729 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC886506  Castilleja rubicundula subsp. lithospermoides Alice Eastwood 1912-6-10 321 San Mateo Crystal Springs Comment
  SD37771  Castilleja rubicundula subsp. lithospermoides Edith A. Purer 1933-5-25 3652 San Mateo Spring Valley Lakes 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
  JEPS18907  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5447 San Mateo just n Montara Point Lighthouse (at the town of Montara); Montara Comment
  JEPS3599  Castilleja subinclusa subsp. franciscana J. H. Thomas 1949-6-4 597 San Mateo 4 mi w La Honda (on road to Pescadero) Comment
  JEPS60425  Castilleja subinclusa subsp. franciscana T. I. Chuang and F. M. Chuang 1969-6-22 6665 San Mateo 0.5 mi n Lobitos Creek Road junction with Verde Road (on Lobitos Creek Road) Comment
  JEPS85202  Castilleja subinclusa subsp. franciscana Roy E. Buck and James A. West 1986-8-17 553 San Mateo ca 3.2 air km ene Franklin Point (Cascade Ranch, just s of Whitehouse Canyon Road, next drainage s of Whitehouse Creek drainage, on both sides of old ranch road) 106 Comment
  CDA41393  Castilleja subinclusa subsp. franciscana T. I. & F. M. Chuang 1991-7-1 7848 San Mateo 0.8 mile north of San Gregorio Beach. 0 Comment
  JEPS103883  Castilleja subinclusa subsp. franciscana T. I. Chuang and F. M. Chuang 1991-7-1 7848 San Mateo 0.8 mile North of San Gregorio Beach Comment
  SJSU11466  Castilleja subinclusa subsp. franciscana R. D. Hennessey 1964-4-26 San Mateo near outlet Pilarcitos Cr into ocean Comment
  CAS-BOT-BC32580  Castilleja wightii Adolph Daniel Edward Elmer 1903-7-1 4761 San Mateo San Pedro Comment
  JEPS19717  Castilleja wightii Peter H. Raven 1957-6-24 10966 San Mateo just s Linda Mar Comment
  JEPS47395  Castilleja wightii L. R. Heckard 1964-6-24 1397 San Mateo San Bruno Mt.; near television transmitting towers 304 Comment
  JEPS60421  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-21 6662 a San Mateo about 2 mi s Half Moon Bay road junction and Skyline Boulevard Comment
  JEPS85728  Castilleja wightii L. R. Heckard 1964-6-24 1396 San Mateo near San Bruno Mt. summit (n of transmitting stations); San Bruno Mt. 304 Comment
  NY68181  Castilleja wightii A. D. E. Elmer 07 1903 4761 San Mateo San Pedro Comment
  UC76054  Castilleja wightii Harley P. Chandler 1901-3-15 813 San Mateo w of Colma Comment
  JEPS103882  Castilleja wightii T. I. Chuang and F. M. Chuang 1991-7-1 7847 San Mateo ca. 7 miles South of halfmoon Bay. Comment
  JEPS60427  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-22 6667 San Mateo 2.4 mi n Highway 1 junction with Highway 84 at San Gregorio (along Highway 1) Comment
  POM248731  Castilleja wightii J. T. Howell 1938-5-1 13767 San Mateo Colma Canyon. 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
  CDA24867  Caulanthus lasiophyllus D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  POM136316  Ceanothus cuneatus A. D. E. Elmer 1903-03 4578 San Mateo Portola Comment
  POM285181  Ceanothus cuneatus Lyman Benson 1929-3-2 991 San Mateo East of Lake Searsville Comment
  JROH3519  Ceanothus cuneatus var. cuneatus Anne Constant 1955-4-8 4 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB3900  Ceanothus foliosus var. foliosus Walker, Clifford 1954-4-20 San Mateo Road to Woodside Comment
  RSA130826  Ceanothus oliganthus W. R. Dudley 1902-5-17 s.n. San Mateo King Mountain rd. Comment
  JROH3527  Ceanothus oliganthus var. sorediatus W. R. Dudley 1894-9-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Preston's ravine, Searsville Comment
  SBBG26911  Ceanothus oliganthus var. sorediatus C. B. Wolf 1941-7-31 4394 San Mateo 1 mi E of summit of La Honda Grade, Santa Cruz Mtns 396 Comment
  CAS-BOT-BC63457  Ceanothus palmeri W. R. Dudley 1893-5-30 s.n. San Mateo Peak of Loma Prieta. Comment
Read comments
Oct 30 2021
  CAS-BOT-BC51237  Ceanothus papillosus David D. Keck 1932-5-11 1774 San Mateo East side of Kings Mountain, on Kings Mountain Road 502 Comment
  CAS-BOT-BC51850  Ceanothus papillosus Charles Piper Smith 1905-4-26 868 San Mateo Woodside. Cahil Ridge. King's Mt. Road 365 Comment
  SBBG45048  Ceanothus papillosus L. S. Rose 1935-5-3 San Mateo Skyline Blvd., W of Saratoga 731 Comment
  CAS-BOT-BC52291  Ceanothus thyrsiflorus Ira L. Wiggins 1925-5-24 1744 San Mateo Along county road from Pescadero to Pebble Beach Comment
  CAS-BOT-BC52293  Ceanothus thyrsiflorus Rimo Bacigalupi 1922-3-1 s.n. San Mateo Lagoon of Arroyo de los Frijoles Comment
  CAS-BOT-BC52298  Ceanothus thyrsiflorus Miss O. Boring 1897-8-25 s.n. San Mateo Near Kings Mt. House, Kings Mountain Comment
  CAS-BOT-BC52299  Ceanothus thyrsiflorus W. R. Dudley 1894-3-25 s.n. San Mateo By road from San Gregorio to Pescadero Comment
  CAS-BOT-BC52311  Ceanothus thyrsiflorus H. A. Borthwick 1920-4-28 s.n. San Mateo Crystal Springs Lake Comment
  JROH595  Centaurea calcitrapa John Hunter Thomas 1991-11-21 25108 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  JROH597  Centaurea calcitrapa John Hunter Thomas 1992-7-24 25388 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  UC463564  Centaurea calcitrapa L. R. Abrams and I. L. Wiggins 1930-11-13 174 San Mateo above Crystal Springs Lake Comment
  HSC23938  Centaurea calcitrapa Mary Katherine Wicksten 1971-8-19 199 San Mateo Huddart Park by horse ring Comment
  SJSU1124  Centaurea calcitrapa C. W. Sharsmith 1951-10-7 5863 San Mateo Alpine Road 3 mi NW of Palo Alto Comment
  RSA176536  Centaurea melitensis John H. Thomas 1963-6-23 10170 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
  JROH600  Centaurea melitensis John H. Thomas 1970-5-30 15980 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH604  Centaurea solstitialis John Hunter Thomas 1977-6-16 18761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA38621  Centaurea stoebe subsp. micranthos D. Petersen 2012-9-17 PDR# MVAP 06098624 San Mateo Hillsborough; off of Polhemus Road; south shaft of New Crystal Springs Bypass Tunnel Project's muck disposal site (aka the upper terrace). 0 Comment
  JEPS46942  Centaurium trichanthum J. B. Davy 1893-6-17 778 San Mateo Belmont Comment
  RSA187357  Centranthus ruber John H. Thomas 1958-11-9 7503 San Mateo Along El Camino Real at northern end of San Carlos. 30 Comment
  SEINET8734815 Image available Centromadia pungens Lewis S. Rose 1938-1 38231 San Mateo San Mateo 6 Comment
  CAS-BOT-BC279323  Centromadia pungens subsp. pungens L. S. Rose 1941-10-10 41463 San Mateo Along the Bayshore Boulevard, San Mateo 3 Comment
  UC894337  Centromadia pungens subsp. pungens Roxana Stinchfield 1915-9-19 250 San Mateo fields near Salt Marshes; Palo Alto Comment
  CAS-BOT-BC384959  Cerastium arvense David D. Keck 1933-5-11 2303 San Mateo Montara Summit, Montara Mountain Comment
  JROH1689  Cerastium glomeratum John H. Thomas 1961-4-8 9078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1694  Cerastium glomeratum John H. Thomas 1975-4-5 17709 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC400166  Ceratophyllum demersum W. R. Dudley 1909-11-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Hallidie Ranch, Portola Valley Comment
  JROH3615  Cercocarpus betuloides var. betuloides A. D. E. Elmer 1903-5-1 4530 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  SEINET6901192  Chenopodium album Robert A. Evers, Clara V. Evers 1975-8-24 115025 -A San Mateo Trailer Villa, Redwood City. Comment
  RSA176411  Chenopodium ambrosioides var. ambrosioides John H. Thomas 1964-10-2 10514 a San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  POM177325  Chenopodium macrospermum var. farinosum L. R. Abrams, I. Wiggins 1930-11-13 178 San Mateo Margin of pond at DSalada Beach. 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
  CAS-BOT-BC497726  Chlorogalum pomeridianum Eric Walther 1919-6-9 s.n. San Mateo Woodside 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
Read comments
Aug 30 2018
  CDA20080  Chondrilla juncea J. Beall 2002-11-18 PDR P 205608 San Mateo San Francisco Bay Area; across the street from 3975 Pacific Blvd. 0 Comment
  CAS-BOT-BC191591  Chorizanthe cuspidata var. cuspidata Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon. San Bruno Mountain Comment
  CAS-BOT-BC191596  Chorizanthe cuspidata var. cuspidata Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo lower Colma Canyon. San Bruno Mountains Comment
  UC1135209  Chrysolepis chrysophylla var. chrysophylla C. M. Belshaw 1935-1-25 1461 San Mateo 4.5 mi w Woodside (on Kings Mt road); Santa Cruz Quad. 609 Comment
  RSA176821  Cicendia quadrangularis John H. Thomas 1961-4-29 9182 San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Comment
  CAS-BOT-BC277883  Cirsium brevistylum Lewis S. Rose 1933-6-9 33216 San Mateo 3 mi. W. of San Bruno Comment
  CAS-BOT-BC277893  Cirsium brevistylum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  JEPS80472  Cirsium fontinale var. fontinale L. R. Heckard 1981-5-25 5662 San Mateo nw of junction (freeway interchange) of State Highway 92 U.S. 280 (on e side of the s end of Lower Crystal Springs Reservoir); Lower Crystal Springs Reservoir Comment
  UCD130569  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo east shore of Upper Crystal Springs Lake, 0.7 mile south of road across lake. Comment
  RSA0008429  Cirsium fontinale var. fontinale L. S. Rose 1953-6-29 53046 San Mateo 0.5 mile E of Crystal Springs Lake on road to Belmont. Comment
  SEINET14157453  Cirsium fontinale var. fontinale Unknown San Mateo Comment
  CAS-BOT-BC285672  Cirsium occidentale var. occidentale A. A. Heller 1906-6-8 8379 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  SD5924  Cirsium occidentale var. occidentale Ulysses S. Grant IV 1925-6-18 San Mateo Hillsborough Comment
  POM54352  Cirsium occidentale var. venustum A. D. E. Elmer 1903-06 4259 San Mateo Crystal Springs Lake. Comment
  UC306686  Cirsium occidentale var. venustum A. D. E. Elmer 1903-6-1 4259 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280136  Cirsium occidentale var. venustum John Thomas Howell 1939-6-16 14747 San Mateo Kings Mt. Comment
  CAS-BOT-BC280507  Cirsium quercetorum J. H. Thomas 1954-6-11 4287 San Mateo About 0.25 miles north of Pigeon Point Light House Comment
  CAS-BOT-BC280520  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  JEPS121559  Cirsium quercetorum Adam C. Schneider 2013-5-17 168 San Mateo Crystal Springs Reservoir Comment
  SJSU15944  Cirsium quercetorum John Rawlings, Ken Hickman 2016-5-26 1819 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC280502  Cirsium quercetorum John Thomas Howell 1939-6-16 14739 San Mateo Skyline Boulevard 4 miles w. of Burlingame Comment
  CAS-BOT-BC280522  Cirsium quercetorum Lewis S. Rose 1934-5-15 34258 B San Mateo Crystal Springs Lake Comment
  JROH639  Cirsium vulgare John H. Thomas 1974-8-3 17499 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1211948  Cirsium vulgare Otto T. Solbrig 1958-8-3 2920 San Mateo near road Highway 5; Crystal Spring Lake 30 Comment
  CAS-BOT-BC223882  Cistus Greg de Nevers 1996-5-22 10811 B San Mateo Edgewood County Park 121 Comment
  JROH3040  Clarkia John Hunter Thomas 1986-6-7 24080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC172000  Clarkia epilobioides Robert F. Hoover 1941-4-23 4904 San Mateo Redwood City Hills Comment
  UCD104853  Clarkia purpurea W. A. Harvey; J. M. Tucker 1948-6-29 1710 San Mateo Beside road to Portola State Park, just W of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC163976  Clarkia purpurea subsp. quadrivulnera Margaret A. Barry 1937-5-1 53 San Mateo Exposed slopes on Coal Mine Ridge Comment
  CAS-BOT-BC163963  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1903-6-6 s.n. San Mateo Alpine Road, Black Mt., Santa Cruz Range Comment
  CAS-BOT-BC163971  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1900-5-19 s.n. San Mateo One mile West of summit of La Honda Road Comment
  CAS-BOT-BC164565  Clarkia purpurea subsp. viminea Ned Cahill 1974-5-18 284 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC165123  Clarkia rubicunda Peter H. Raven 1957-6-24 10969 San Mateo 0.5 miles south of San Gregorio on old coast highway Comment
  CAS-BOT-BC165156  Clarkia rubicunda Peter H. Raven 1957-6-24 10962 San Mateo Along State Highway 1, just south of Linda Mar Comment
  JEPS83042  Clarkia rubicunda Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 432 San Mateo ca. 0.5 km ne Pilarcitos Dam (near crest of Cahill Ridge, w of gravel rd., overlooking Pilarcitos Lake, 7.5 km nw of the intersection of Calif. Hwys. 35 and 92); San Francisco Watershed Reserve 289 Comment
  JROH3015  Clarkia rubicunda Rachel Hays 1972-7-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC165163  Clarkia rubicunda Peter H. Raven 1957-6-30 11012 San Mateo Near bridge over Tunitas Creek along state Highway 1 Comment
  CAS-BOT-BC165171  Clarkia rubicunda H. L. Mason 1921-7-14 s.n. San Mateo La Honda - Pescadero Road near Pescadero Creek Comment
  UCD104830  Clarkia rubicunda W. A. Harvey; J. M. Tucker 1948-6-29 1709 San Mateo Beside road to Portola State Park, just W of junction with Highway 5 (Skyline Boulevard). Comment
  UC306526  Clarkia unguiculata A. D. E. Elmer June, 1903 4293 San Mateo Alpine School House Comment
Read comments
Oct 6 2011
  CAS-BOT-BC439292  Claytonia exigua subsp. exigua Lewis S. Rose 1937-4-24 37227 San Mateo Emerald Lake. 106 Comment
  CAS-BOT-BC439290  Claytonia exigua subsp. exigua H. A. Dutton 1900-2-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH3338  Claytonia parviflora subsp. parviflora John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3341  Claytonia parviflora subsp. parviflora John Rawlings, Ann Lambrecht 2010-5-5 1096 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 just south of the dwarf interior live oaks. 144 Comment
  CAS-BOT-BC439592  Claytonia parviflora subsp. parviflora W. R. Dudley 1896-4-17 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC439986  Claytonia perfoliata subsp. mexicana John M. Miller 1977-3-23 590 San Mateo Purisimo Canyon; Hwy. 1, 4 mi. E of Hwy. 1 on Purisimo Canyon Road. Comment
  CAS-BOT-BC443658  Claytonia perfoliata subsp. perfoliata Catherine A. Toschi 1963-3-17 63 -48 San Mateo East slope San Bruno Mountains below radio station 213 Comment
  RSA244334  Claytonia sibirica C. W. Tilforth, John Dourley 1973-7-19 935 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  JROH3417  Clematis lasiantha John Hunter Thomas 1985-4-11 23519 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3420  Clematis lasiantha John Hunter Thomas 1988-4-7 24375 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
  UC853910  Clematis lasiantha M. N. Paulson 1915-4-2 San Mateo Santa Cruz Mts. Peninsula, Jasper Ridge Comment
  JROH2874  Clinopodium douglasii John H. Thomas 1971-5-30 15954 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2880  Clinopodium douglasii John Hunter Thomas 1985-5-22 23678 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23891  Clinopodium douglasii Mary Katherine Wicksten 1971-6-16 33 San Mateo Bank at Huddart Park, by Werder Flat Comment
  UCD18535  Clinopodium douglasii Roman Gankin 1950-6-25 2 San Mateo about 2 miles from Alameda de Las Puigas Rd., behind Stanford University, off Sandhill Rd. Comment
  CAS-BOT-BC499375  Clintonia andrewsiana A. Kellogg 1870-5-16 s.n. San Mateo San Gregoria Creek Comment
  CAS-BOT-BC499404  Clintonia andrewsiana L. R. A. 1902-5-22 2465 San Mateo Kings Mountain Comment
  POM14815  Collinsia franciscana C. F. Baker 1902-4-6 647 San Mateo Crystal Springs Lake. 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
  UC765656  Collinsia multicolor R. F. Hoover 1941-4-23 4901 San Mateo San Mateo Creek below Crystal Springs Dam Comment
  JROH4019  Collinsia sparsiflora var. collina John H. Thomas 1976-4-3 18078 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH208  Conium maculatum John H. Thomas 1964-7-3 10442 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road above Searsville Lake Comment
  JROH210  Conium maculatum John H. Thomas 1969-5-28 15081 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of lake Comment
  JROH1850  Convolvulus arvensis John Hunter Thomas 1983-6-29 22694 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5547340  Convolvulus arvensis H. S. Gentry 1931-1 94 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  RSA0059768  Convolvulus subacaulis Lewis S. Rose 1956-5-28 56080 San Mateo Skyline Blvd. W of San Mateo. 182 Comment
  CAS-BOT-BC286212  Conyza canadensis J. H. Thomas 1963-7-19 10180 A San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC288965  Conyza floribunda Peter Rubtzoff; Patricia Fallon 1987-8-26 9835 San Mateo San Bruno Mts: Saddle area on N side of Guadelupe Canyon. Parkway W of Radio Rd junction; NW part of the area along old Guadelupe Rd Comment
  RSA120503  Corallorhiza maculata S. S. Tillett, I. Sternback 1956-6-24 533 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  POM226854  Cordylanthus maritimus subsp. palustris L. R. Abrams 1914-7-16 s.n. San Mateo Cooley's Landing on San Francisco Bay Comment
  JEPS20324  Cordylanthus pilosus subsp. pilosus Lewis S. Rose 1941-8-9 41362 San Mateo Woodside 548 Comment
  JROH4027  Cordylanthus pilosus subsp. pilosus John H. Thomas 1971-8-5 16010 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC750689  Cordylanthus pilosus subsp. pilosus Lewis S. Rose 1941-8-9 41362 San Mateo Woodside 548 Comment
  UC885647  Cordylanthus pilosus subsp. pilosus Roxana Stinchfield 1915-10-14 255 San Mateo basaltic columns near Stanford University Comment
  JEPS80892  Cordylanthus rigidus subsp. rigidus Monty Knudsen 1981-8-13 San Mateo Edgewood Park w of Redwood City; Edgewood Park Comment
  POM72033  Cordylanthus rigidus subsp. rigidus Alice Eastwood 1896-9-6 s.n. San Mateo Crystal Springs. Comment
  CAS-BOT-BC101482  Corethrogyne filaginifolia L. R. A. 1902-5-11 2459 San Mateo Crystal Springs 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
  RSA187486  Cornus californica John H. Thomas 1954-4-3 3817 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda. Alt. about 350 feet. Comment
  JROH1863  Cornus glabrata D. E. Breedlove 1971-5-31 19372 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC210355  Cornus sericea J. H. Thomas 1954-4-3 3817 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  CAS-BOT-BC210362  Cornus sericea James McMurphy 1902-5-11 s.n. San Mateo San Francisquito Creek below Stock Farm Comment
  SJSU128  Cornus sericea T. Merson 1933-10-4 San Mateo by Mud Lakes near Coal Mine Ridge above Corte Madera Cr Comment
  CAS-BOT-BC190043  Cortaderia jubata Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountains. Along Guadalupe Canyon Parkway east of Northeast ridge. 60 Comment
  CAS-BOT-BC180370  Corylus cornuta subsp. californica Ira L. Wiggins 1925-4-1 1649 San Mateo On Kings Mountain Road 3/4 of a mile above Woodside Comment
  CAS-BOT-BC180372  Corylus cornuta subsp. californica Baki Kasapligil 1967-7-18 4171 San Mateo Colma Canyon, San Bruno Mt. Exp. NW 100 Comment
  HSC3476  Corylus cornuta subsp. californica C. B. Wolf 1927-2-26 223 San Mateo On the La Honda Grade Comment
  JROH1336  Corylus cornuta subsp. californica John Hunter Thomas 1981-2-14 20228 San Mateo Jasper Ridge Biological Preserve, Stanford University; redwood area below dam Comment
  SJSU281  Corylus cornuta subsp. californica H. W. Marion 1936-3-8 San Mateo 1 mi NE of Searsville L Comment
  POM270391  Corylus cornuta var. californica Lyman Benson 1931-2-28 2613 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  SEINET12034011  Corylus cornuta var. californica J. H. Thomas 1959-1 7668 San Mateo Jasper Ridge,about 5 mi SW of Palo Alto 91 Comment
  CAS-BOT-BC453501  Cotoneaster lacteus John H. Thomas 1968-10-6 14842 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. East of Palo Alto. Comment
  POM88012  Cotula australis L. R. Abrams 1902-4-13 2323 San Mateo San Andreas Lake. Comment
  JROH660  Cotula coronopifolia John Hunter Thomas 1981-4-5 20270 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  RSA187304  Cotula coronopifolia John H. Thomas 1963-7-19 10193 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 mi. NW of Santa Cruz. Comment
  UC912224  Cotula coronopifolia Herbert L. Mason 1927-4-24 3707 San Mateo mouth of San Gregorio Creek Comment
  OBI20232  Crassula aquatica Rimo Bacigalupi, G. T. Robbins 1954-6-18 4561 San Mateo At Point Ano Nuevo Comment
  CAS-BOT-BC427838  Crassula connata Ned Cahill 1975-2-21 407 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  JROH3651  Crataegus monogyna John H. Thomas 1965-4-10 10560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC291511  Crepis capillaris James McMurphy 1909-10-31 s.n. San Mateo Hooper's Place, Woodside Comment
  CAS-BOT-BC290923  Crepis vesicaria John Thomas Howell 1956-5-1 31316 San Mateo Just s. of Woodside on road to Searsville Comment
  CAS-BOT-BC290924  Crepis vesicaria John Thomas Howell 1956-5-1 31316 San Mateo Just s. of Woodside on road to Searsville Comment
  JROH664  Crepis vesicaria subsp. taraxacifolia John H. Thomas 1958-5-10 7162 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1838  Crocanthemum scoparium John H. Thomas 1977-5-4 18600 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4998  Crypsis schoenoides John Rawlings 2009-9-9 0999 San Mateo Jasper Ridge Biological Preserve, Stanford University; in drying bed of Middle Lake 104 Comment
  RSA10273  Cryptantha clevelandii var. florosa H. A. Barker 1927-5-14 671 San Mateo North of Half Moon Bay. 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
  JROH1377  Cryptantha microstachys John Hunter Thomas 1978-4-22 19102 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA92810  Cryptantha microstachys P. H. Raven 1950-4-16 1801 San Mateo Summit ridge, San Bruno Mountains. 244 Comment
  UCD84709  Cryptantha torreyana Robert E. Preston 2009-6-16 2688 b San Mateo Santa Cruz Mtns, ca. 0.5 mi NW of Waterman Gap. 347 Comment
  CAS-BOT-BC80523  Cupressus arizonica Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo grassland above Harold Avenue, Brisbane 121 Comment
  RSA140852  Cupressus macrocarpa John H. Thomas 1960-8-28 8832 San Mateo Near Skyline Blvd. and Summit Dr. to the west of Hillsborough. Comment
  RSA130967  Cuscuta salina S. D. Halsey 1908-9-26 s.n. San Mateo near Cooley's Landing Comment
  SEINET12278070  Cuscuta salina E. A. Purer 1933-1 5408 San Mateo Near Baden Station Comment
  CAS-BOT-BC287343  Cynara cardunculus John H. Thomas 1960-6-25 8800 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple St 7 Comment
  UC1195196  Cynara cardunculus subsp. cardunculus John H. Thomas 1960-6-25 8800 San Mateo near Maple Street (between El Camino Real and railroad tracks, along or near a small creek running into Redwood Slough); Redwood City, Redwood Slough Comment
  RSA141086  Cynara scolymus John H. Thomas 1960-6-25 8800 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  JROH5000  Cynodon dactylon John H. Thomas 1966-4-24 11581 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA34568  Cynoglossum grande M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 871 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  POM176865  Cynoglossum grande L. R. Abrams 1914-3-1 5060 San Mateo Woodside. Comment
  POM286867  Cynoglossum grande Lyman Benson 1931-2-28 2608 San Mateo Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 152 Comment
  RSA130416  Cynoglossum grande Josephine Randall 1908-2-16 s.n. San Mateo Corte de Madera Canyon near Alpine Road. Comment
  JROH4388  Cyperus eragrostis John H. Thomas 1973-6-15 16831 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC517566  Cyperus eragrostis John Thomas Howell 1926-10-9 2216 San Mateo near Lake San Andreas Comment
  HSC23970  Cyperus eragrostis Mary Katherine Wicksten 1971-7-13 170 San Mateo Huddart Park by drinking fountain Comment
  CAS-BOT-BC133770  Cypripedium fasciculatum Miss. Bolton 1911-5-6 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC133772  Cypripedium fasciculatum Mrs. C. S. Jordan 1915-4-1 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC198192  Cytisus scoparius Charles Piper Smith 1922-4-29 3507 San Mateo Lake San Andreas Comment
  CAS-BOT-BC192238  Danthonia californica L. R. A. 1902-5-11 2451 San Mateo Crystal Springs Comment
  UCD60673  Danthonia californica var. americana Ira L. Wiggins 1929-5-10 3673 San Mateo Coastal bluff at Pigeon Point. Comment
  JROH226  Daucus pusillus John H. Thomas 1974-4-24 17188 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18457  Daucus pusillus C. B. Wolf 1927-6-29 550 San Mateo South of Pebble Beach near Pescadero Comment
  SD49785  Deinandra corymbosa J. H. Thomas 1959-8-16 8067 San Mateo About 2 miles north of Pigeon Point along the coast. 14 Comment
  UC796714  Deinandra corymbosa Ira L. Wiggins 1949-7-2 12199 San Mateo Pescadero Beach Comment
  UC89137  Deinandra corymbosa K. Brandegee 1889-5-1 San Mateo Milbrae Comment
  UC990592  Deinandra corymbosa James I. McMurphy 1907-8-6 San Mateo between Woodside and Crystal Springs Comment
  SD30844  Deinandra corymbosa Edith A. Purer 1933-5-31 3662 San Mateo Spring Valley Lakes. Comment
  CAS-BOT-BC299188  Deinandra corymbosa subsp. corymbosa A. D. E. Elmer 1903-7-1 4963 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC299198  Deinandra corymbosa subsp. corymbosa L. R. Abrams 1902-9-21 3000 San Mateo Crystal Lake Comment
  CAS-BOT-BC299210  Deinandra corymbosa subsp. corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach 16 Comment
  CAS-BOT-BC299212  Deinandra corymbosa subsp. corymbosa R. F. Hoover 1966-8-27 9942 San Mateo Half Moon Bay Comment
  CAS-BOT-BC299217  Deinandra corymbosa subsp. corymbosa H. D. Geis 1901-10-1 s.n. San Mateo Spanishtown Comment
  CAS-BOT-BC299230  Deinandra corymbosa subsp. corymbosa David D. Keck 1931-10-5 1295 San Mateo Skyline Boulevard, summit of Cahill Ridge, 1.5 miles south of Half Moon Bay Road 450 Comment
  POM270770  Delphinium californicum Lyman Benson 1930-5-12 s.n. San Mateo Lake Searsville. 152 Comment
  RSA152052  Delphinium californicum John H. Thomas 1961-5-7 9279 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  JROH3429  Delphinium californicum subsp. californicum Richard L. Garber 1971-5-18 28 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5546959  Delphinium decorum H. S. Gentry 1931-1 80 San Mateo Collected 1 mile SE of Holy Cross Cemetery. Comment
  RSA122777  Delphinium hesperium N. K. Carlson 1935-6-29 107 San Mateo San Mateo: 1 mile S of Pescadero, Santa Cruz. 91 Comment
  RSA10344  Delphinium nudicaule H. A. Barker 1926-5-1 575 San Mateo Kings Mt. Comment
  JROH3458  Delphinium patens subsp. patens John Hunter Thomas 1980-4-10 19872 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam, grassy area Comment
  CAS-BOT-BC7926  Delphinium variegatum Alice Eastwood 1896-4-1 s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC7929  Delphinium variegatum Adolph Daniel Edward Elmer 1903-5-1 4796 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC7941  Delphinium variegatum John Hunter Thomas 1974-4-11 17134 San Mateo SE of Canada Road and Edgewood Road, NW of Woodside 152 Comment
  RSA32657  Delphinium variegatum Doris K. Kildale 1930-4-21 9221 San Mateo Emerald Lake Comment
  SEINET12099656  Delphinium variegatum M. T. Doutt 1931-1 s.n. San Mateo Skyline Blvd, W of Hillbrae Comment
  SJSU19  Delphinium variegatum C. D. Duncan 1925-5-21 San Mateo S end Portola Valley Comment
  CAS-BOT-BC7927  Delphinium variegatum subsp. variegatum Alice Eastwood 1896-4-1 s.n. San Mateo Crystal Springs Comment
  JROH3467  Delphinium variegatum subsp. variegatum John Hunter Thomas 1980-5-6 19926 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS48647  Dendromecon rigida Elsa Kraeger 1926-2-21 San Mateo along roadside n La Honda Comment
  CAS-BOT-BC628  Dendromecon rigida subsp. rigida Daniel Cohen 1953-5-9 83 San Mateo Near Skylind Drive on La Honda Road. Comment
  CAS-BOT-BC192602  Deschampsia cespitosa subsp. holciformis Dr. E. B. Copeland 1903-6-10 3305 San Mateo Montara Point Comment
  JROH5049  Deschampsia danthonioides John Hunter Thomas 1982-5-7 20923 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5051  Deschampsia danthonioides John H. Thomas 1983-6-29 22718 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC201910  Deschampsia elongata W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge, near Black Mt. Comment
  JROH5065  Deschampsia elongata John Hunter Thomas 1980-11-27 20193 A San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  JROH5071  Deschampsia elongata John Hunter Thomas 1987-5-15 24285 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road from low flow crossing to the west side of the dam. Comment
  UCD63320  Deschampsia elongata S. S. Tillett; I. Sternback 1956-6-25 544 San Mateo On Middleton property s. of road to Portola State Park, just before entrance. 396 Comment
  RSA17939  Deschampsia holciformis C. B. Wolf, Le Roy Abrams 1927-6-16 s.n. San Mateo On the west side of Spring Valley Lakes. Comment
  SJSU112  Dicentra formosa T. Rogers 1929-5-30 San Mateo Kings Mt Comment
  UC9936  Dicentra formosa J. Burtt Davy 1895-4-21 1060 San Mateo Pilarcitos Creek 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-BC500897  Dichelostemma capitatum Margaret A. Barry 1937-5-15 119 San Mateo Coal Mine Ridge Comment
  JROH4660  Dichelostemma capitatum subsp. capitatum John Hunter Thomas 1991-4-25 25003 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3885708  Dichelostemma pulchellum Lewis S. Rose 1970-4-8 70025 San Mateo Black Mountain w. of San Mateo.; 0 122 Comment
  CHSC56594  Digitalis purpurea Steven Triano 1988-5-24 168 San Mateo Along se side of Old La Honda Road ca 0.5 air miles e of SkyLonda. 405 Comment
  CAS-BOT-BC150453  Diplacus aurantiacus Ned Cahill 1974-4-30 229 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC150461  Diplacus aurantiacus John H. Thomas 1958-3-19 7046 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC150466  Diplacus aurantiacus L. R. Abrams 1915-6-23 5257 San Mateo Saratoga Big Basin Road Comment
  RSA438392  Dipsacus fullonum E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel Comment
  JROH1909  Dipsacus sativus John H. Thomas 1969-6-4 15108 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC67074  Dirca occidentalis Richard Spjut, Donald Stoffey 1980-5-16 6197 San Mateo Crystal Springs Reservoir, 2 mi. W of San Mateo. 61 Comment
  JROH4207  Dirca occidentalis D. E. Breedlove 1971-5-11 19336 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM202469  Dirca occidentalis L. S. Rose 1933-6-9 s.n. San Mateo San Andreas Lake Comment
  UCD116838  Dirca occidentalis Lewis S. Rose 1964-3-9 64004 San Mateo N. end of Crystal Springs Lake. 121 Comment
  SEINET10776854 Image available Dirca occidentalis Lewis S. Rose 1939-4-12 Rose 39060 San Mateo Crystal Springs Lake 152 Comment
  UC204220  Disporum smithii A. D. E. Elmer May, 1903 4697 San Mateo Butano Creek Comment
  UC3576  Disporum smithii J. Burtt Davy 1895-4-21 1057 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC195720  Distichlis spicata Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  CAS-BOT-BC195722  Distichlis spicata John H. Thomas 1963-5-20 10150 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NE of Santa Cruz Comment
  UC38050  Distichlis spicata J. Burtt Davy 1893-6-17 San Mateo Belmont Comment
  JROH3382  Dodecatheon hendersonii John H. Thomas 1958-2-15 6987 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3384  Dodecatheon hendersonii Herbert Dengler 1959-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET215104 Image available Dodecatheon hendersonii R. E. Dengler 1960-4-12 25 San Mateo Stanford Biological Preserve; Jasper Ridge. 130 Comment
  UC1964685  Drymocallis glandulosa Roger Raiche 1983-8-18 30634 San Mateo Montara Mt. Comment
  CAS-BOT-BC159543  Drymocallis glandulosa var. glandulosa Javier Penalosa 1963-2-23 2634 San Mateo San Bruno Mtn., ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC159544  Drymocallis glandulosa var. glandulosa Donald A. Johansen 1933-5-18 705 San Mateo Hills above Searsville Lake along road from Portola to La Honda Comment
  CAS-BOT-BC67879  Dryopteris arguta John H. Thomas 1961-5-7 9296 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC67893  Dryopteris arguta David D. Keck 1932-2-12 1361 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 304 Comment
  JROH43  Dryopteris arguta L. Fletcher 1986-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  CAS-BOT-BC410867  Dudleya caespitosa Phipps 1922-7-1 s.n. San Mateo Tunitas Creek Comment
  CAS-BOT-BC428360  Dudleya farinosa C. F. Baker 1903-6-30 3440 San Mateo Pilarcitos Comment
  CDA33784  Dudleya farinosa D. G. Kelch 2011-3-13 11 .051-B San Mateo Pacifica. Along sea bluffs Comment
  CAS-BOT-BC428362  Dudleya farinosa Ira L. Wiggins 1929-7-4 3802 San Mateo Near the mouth of Pescadero Creek, 2 miles from town of Pescadero Comment
  CAS-BOT-BC428367  Dudleya farinosa Robt. T. Orr 1961-7-28 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  JROH1816  Dysphania ambrosioides John Hunter Thomas 1980-11-27 20185 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta 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
  JROH4306  Echinodorus berteroi John Hunter Thomas 1979-9-9 19723 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  CAS-BOT-BC112960  Eleocharis macrostachya Adolph Daniel Edward Elmer 1903-7-1 4767 San Mateo San Pedro. Comment
  JROH4407  Eleocharis macrostachya John Hunter Thomas 1982-8-13 21138 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1100725  Eleocharis macrostachya Herbert L. Mason, Verne Grant 1946-8-28 13087 San Mateo S of San Francisco (Santa Cruz--Daly City Road # 5) Comment
  CAS-BOT-BC229011  Eleocharis palustris Elizabeth McClintock; Paul Reeberg 1989-4-6 s.n. San Mateo San Bruno Mountains. At the base of Owl Canyon 45 Comment
  UC50673  Elymus californicus Kellogg and Brennon San Mateo San Gregorio's Redwoods Comment
  CAS-BOT-BC203680  Elymus glaucus subsp. glaucus Phillip Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crystal Cave Canyon east of quarry Comment
  CAS-BOT-BC203687  Elymus glaucus subsp. glaucus George Oberlander 1950-5-28 990 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  CAS-BOT-BC203690  Elymus glaucus subsp. glaucus Margaret A. Barry 1937-6-22 178 San Mateo Coal Mine Ridge Comment
  JROH5107  Elymus glaucus subsp. glaucus John H. Thomas 1977-5-14 18605 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC235209  Elymus multisetus David D. Keck 1932-5-6 1469 San Mateo Belmont Comment
  SJSU15851  Elymus trachycaulus subsp. trachycaulus John Rawlings, Ken Hickman 2015-6-8 1579 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
  JROH5278  Elymus triticoides W. H. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Just outside gate on east side of low-flow causeway -- San Francisquito Creek, Whiskey Hill entrance, south side of road. Comment
  CAS-BOT-BC166141  Epilobium canum subsp. canum John Thomas Howell 1932-10-19 10853 San Mateo Skyline Boulevard at summit of hills east of Half Moon Bay Comment
  CAS-BOT-BC166518  Epilobium canum subsp. canum James McMurphy 1906-8-24 s.n. San Mateo Los Trancos Creek Comment
  SD38385  Epilobium ciliatum subsp. watsonii Edith A. Purer 1933-7-27 5340 San Mateo High stabilized sand dunes, Pigeon Point. Comment
  UCD105934  Epilobium ciliatum subsp. watsonii Malcolm A. Nobs; S. Galen Smith 1949-8-26 1585 San Mateo About 1 mile south of Half Moon Bay. Comment
  JROH5569  Epilobium densiflorum John Rawlings 2013-6-13 1188 San Mateo Jasper Ridge Biological Preserve, Stanford University. At west end of the shallow depression known as the Semaphore Grass Meadow. 122 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
  RSA0065214  Equisetum A. C. Sanders 2014-8-3 41236 San Mateo South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay. 3 Comment
  UCR279844  Equisetum arvense Peter Rubtzoff 1976-3-14 8444 San Mateo San Francisco Bay Region, San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; upper part of East Fork Colma Creek Canyon 220 Comment
  JROH64  Equisetum hyemale subsp. affine Toni Corelli 2005-10-12 307 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13, north side of Leonard's bridge. 106 Comment
  JROH70  Equisetum telmateia subsp. braunii John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA131968  Equisetum telmateia var. braunii John H. Thomas 1950-3-5 1295 San Mateo About 5 miles from Pescadero toward La Honda along Hwy. 152 Comment
  SJSU15446  Eragrostis curvula John Rawlings 2009-5-1 1048 B San Mateo This ornamental grass appeared along a short stretch of San Hill Rd. at the entrance to the Horse Park at Woodside. 119 Comment
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Feb 18 2015
  JROH5925  Eragrostis curvula John Rawlings 2009-5-1 1048 San Mateo Sand Hill Road at entrance to Horse Park at Woodside, on the Menlo Park-Woodside border, San Mateo Co. Comment
  JROH5147  Eragrostis pectinacea var. pectinacea John Rawlings 2012-7-27 1124 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the NE corner of the Caretaker's Residence by the garden fence and the blackberry bush. 106 Comment
  SEINET7042863  Eremalche rotundifolia A. G. Vestal 1962-3-26 s.n. San Mateo Laguna Salada. San Francisco South quadrangle UTM Zone 10, 545384mE, 4164305mN. Comment
  RSA436025  Eremocarpus setiger E. A. Purer 1933-8-25 18243 San Mateo Skyline Drive Comment
  JEPS83065  Erigeron foliosus var. franciscensis Roy E. Buck, Randall A. Morgan, and James A. West 1983-7-23 448 San Mateo n end Sawyer Ridge (on sw-facing slope above last curve in gravel ridge before intersection above San Andreas Dam); San Francisco Watershed Reserve, Sawyer Ridge 312 Comment
  RSA136093  Erigeron foliosus var. franciscensis W. R. Dudley 1895-6-14 s.n. San Mateo Santa Cruz Mtn Peninsula. Comment
  CAS-BOT-BC295086  Erigeron glaucus Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  SJSU2274  Erigeron glaucus C. W. Sharsmith 1947-4-13 6755 San Mateo Pescadero Beach, near Pescadero Point Comment
  UCR240776  Erigeron glaucus T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3521 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  CAS-BOT-BC295081  Erigeron glaucus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Montara Mountains Comment
  CAS-BOT-BC295091  Erigeron glaucus Javier Penalosa 1963-3-9 2675 San Mateo San Bruno Mountain. Slopes southeast of 1314 ft. summit 381 Comment
  RSA175148  Erigeron glaucus R. F. Thorne 1963-6-9 32239 San Mateo Top of San Bruno Mountain 335 Comment
  HSC24048  Eriodictyon californicum Mary Katherine Wicksten 1971-6-18 6 San Mateo Huddart Park by park office Comment
  JROH2723  Eriodictyon californicum D. E. Breedlove 1971-5-31 19391 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH2726  Eriodictyon californicum John H. Thomas 1974-5-29 17398 San Mateo Jasper Ridge Biological Preserve, Stanford University; near riders' shack Comment
  LA205649  Eriodictyon californicum Lewis S. Rose; 1935-6-11 35217 San Mateo Kings Mountain Comment
  CAS-BOT-BC216244  Eriodictyon californicum Josephine D. Randall 1907-7-24 166 San Mateo Road to Crystal Springs Lake, Santa Cruz Peninsula Comment
  RSA766408  Eriogonum caninum Delzie Demaree 1933-5-25 10514 San Mateo Sky Line drive Comment
  JEPS127890  Eriogonum fasciculatum var. foliolosum Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 309 San Mateo Crystal Springs Reservoir. Comment
  CAS-BOT-BC250548  Eriogonum gracile John H. Thomas 1971-5-2 15823 San Mateo Near intersection of Canada and Edgewater [Edgewood?] roads. About 4 miles SW of center of Redwood City 304 Comment
  POM165225  Eriogonum gracile var. gracile Edward L. Greene 1902-9-10 1675 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC251985  Eriogonum latifolium Louis F. Pitelka 1973-6-16 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco. On bluffs in open areas Comment
  CAS-BOT-BC251995  Eriogonum latifolium A. D. E. Elmer 1903-7-1 4557 San Mateo Half Moon Bay Comment
  SD38688  Eriogonum latifolium Edith A. Purer 1933-7-27 5379 San Mateo small dunes near strand, two miles south of Pigeon Point Comment
  UC1349016  Eriogonum latifolium Robert F. Thorne and P. Everett 1963-6-9 32238 San Mateo top of San Bruno Mountain San Bruno Mountain 335 Comment
  UC311072  Eriogonum latifolium A. D. E. Elmer July, 1903 4557 San Mateo Half Moon Bay Comment
  CAS-BOT-BC264771  Eriogonum luteolum David D. Keck 1931-10-5 1281 San Mateo Dam at north end of Crystal Springs Lake Comment
  CAS-BOT-BC264776  Eriogonum luteolum L. S. Rose 1941-9-2 41432 San Mateo Emerald Lake, west of Redwood City 90 Comment
  POM165227  Eriogonum luteolum C. F. Baker 1902-9-10 1674 San Mateo Crystal Springs Lake Comment
  SD12577  Eriogonum luteolum Edith A. Purer 1933-8-25 5510 San Mateo Along Skyline Drive Comment
  JROH3230  Eriogonum luteolum var. luteolum John H. Thomas 1972-8-18 16146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC662513  Eriogonum luteolum var. luteolum L. S. Rose 1941-9-2 41432 San Mateo w Redwood City; Emerald Lake 90 Comment
  POM165061  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-06 4311 San Mateo Crystal Springs Lake. Comment
  RSA766372  Eriogonum nudum var. auriculatum Delzie Demaree 1933-7-8 10423 San Mateo Spring Valley Road Comment
  RSA95580  Eriogonum nudum var. auriculatum L. S. Rose 1953-6-29 53047 San Mateo 0.5 mile E of Crystal Springs Lake on road to Belmont. Comment
  UCD100531  Eriogonum nudum var. auriculatum Marilyn Ivey 1973-5-30 67 San Mateo Farm Hill Blvd., 2 miles east of Canada College. Comment
  CAS-BOT-BC304072  Eriophyllum confertiflorum Fred Hemphill 1973-5-6 776 San Mateo San Carlos. N of Malabar Rd and Melendry Dr 207 Comment
  RSA418518  Eriophyllum confertiflorum Jerry A. Powell 1972-3-10 910 San Mateo Mt. San Bruno Comment
  UCSB55462  Eriophyllum confertiflorum Powell, Jerry 1972-3-10 San Mateo Mt. San Bruno Comment
  CAS-BOT-BC304077  Eriophyllum confertiflorum Elizabeth McClintock; Paul Reedberg 1988-4-26 s.n. San Mateo Guadalupe Hills Comment
  JROH702  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1975-6-5 17942 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  JROH703  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1976-5-26 18148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH711  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1981-5-8 20562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA203569  Eriophyllum confertiflorum var. confertiflorum Lewis S. Rose; 1933-5-17 33176 San Mateo Redwood City Comment
  JROH720  Eriophyllum lanatum var. arachnoideum John H. Thomas 1962-7-15 9912 San Mateo Jasper Ridge Biological Preserve, Stanford University; near northern end of ridge Comment
  CAS-BOT-BC301969  Eriophyllum staechadifolium Louis F. Pitelka 1973-6-16 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  UC483493  Eriophyllum staechadifolium Ira L. Wiggins 1929-7-4 3793 San Mateo sea bluffs at Pescadero Beach Comment
  CAS-BOT-BC301978  Eriophyllum staechadifolium Elizabeth McClintock 1967-6-24 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  UCSB10755  Eriophyllum staechadifolium Myrick, Donald 1966-6-11 San Mateo Near Pescadero Creek off Highway #1 south of San Francisco Comment
  SEINET11850785  Eriophyllum staechadifolium var. artemisiaefolium E. H. Graham 1931-1 6930 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  JROH2595  Erodium botrys John H. Thomas 1969-4-12 14888 a San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2601  Erodium botrys John H. Thomas 1975-4-3 17704 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC41437  Eruca vesicaria subsp. sativa Elsie Z. Lovegrove 1948-2-22 s.n. San Mateo Coast road near Montara. Comment
  POM259929  Eryngium armatum I. L. Wiggins 1939-8-2 9296 San Mateo Ano Nuevo Point Comment
  UC20995  Eryngium armatum Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  JROH241  Eryngium jepsonii John H. Thomas 1977-4-28 18563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5794  Eryngium jepsonii John Rawlings 2016-6-15 1885 San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of road F, 157 yards east of its intersection with Trail 15 165 Comment
  CAS-BOT-BC54510  Erysimum capitatum D. D. Davis 1903-5-1 s.n. San Mateo La Honda grove. Comment
  CAS-BOT-BC54824  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-BC54843  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 806 San Mateo Crests and steep upper slopes of the San Bruno Hills. 365 Comment
  CAS-BOT-BC54854  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-4-2 906 a fl. 906b fr. San Mateo Fifield Ridge, just above San Mateo Creek and north of Pilarcitos Lake. 243 Comment
  CAS-BOT-BC54861  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-6-4 914 San Mateo Above southeast shore of Crystal Springs Lake, southwest base Pulgas Ridge. 91 Comment
  CAS-BOT-BC54871  Erysimum franciscanum J. H. Thomas 1960-3-11 8540 San Mateo Near intersection of Bunker Hill Road and Skyline Drive. 91 Comment
  CAS-BOT-BC54891  Erysimum franciscanum Vernal L. Yadon 1968-4-5 s.n. San Mateo Just south of Ano Nuevo Point. Comment
  RSA102113  Erysimum franciscanum G. B. Rossbach 567 San Mateo Lower W slope Pulgas Ridge above E shore Crystal Springs Lake Comment
  UC334631  Erysimum franciscanum Hy. Edwards March 1877 77 San Mateo Colma Comment
  UC765069  Erysimum franciscanum R. F. Hoover 1941-4-23 4903 San Mateo rocky hill near Crystal Springs Dam Comment
  SEINET10667980  Erythranthe arvensis Edward L. Greene Greene s.n. San Mateo Belmont. Comment
  SD37720  Erythranthe guttata Marie Cummings 1933-5-23 3722 San Mateo Spring Valley Comment
  JEPS121486  Eschscholzia californica Adam C. Schneider 2013-5-17 157 San Mateo Crystal Springs Reservoir Comment
  JEPS51732  Eschscholzia californica Dr. L. M. Newlon 1921-1 246 San Mateo sea shore from Salada to Mussel Comment
  POM149416  Eschscholzia californica C. F. Baker 1903-5-14 3256 San Mateo Crystal Springs, Lake Comment
  CAS-BOT-BC403556  Eschscholzia californica Brandegee 1890-5-1 K San Mateo San Gregorio Comment
  CAS-BOT-BC110570  Eschscholzia crocea T. S. Brandegee May 22 s.n. San Mateo La Honda. Comment
  JROH2977  Eucalyptus globulus John H. Thomas 1980-11-18 20173 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC4303  Euonymus occidentalis J. Wendell Howe 1930-3-27 San Mateo Coast Rd. near Pigeon Point. Comment
  SEINET12131905  Euonymus occidentalis Unknown 1932-1 9164 San Mateo Canons San Madero Creek Comment
  UC306743  Euonymus occidentalis var. occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  POM282553  Euphorbia crenulata Lyman Benson 1930-5-3 2089 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 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
  CAS-BOT-BC166767  Euphorbia peplus Peter Rubtzoff 1977-4-14 8942 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. 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
  CAS-BOT-BC310720  Euthamia occidentalis James McMurphy 1905-10-29 s.n. San Mateo Above Portola Comment
  JROH5154  Festuca arundinacea John Hunter Thomas 1982-6-7 21034 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278287  Festuca californica Roxana S. Ferris 1920-4-23 1952 San Mateo Santa Cruz Mountain Peninsula. Bridge on Alpine Road along Corte Madera Cr. 365 Comment
  UCD65896  Festuca californica subsp. californica Rimo Bacigalupi; S. G. Smith, L. T. Dempster, and G. T. Robbins 1956-5-15 5645 San Mateo On eastern flank of first ridge west of San Andreas Lake, on road to Pilarcitos Lake. 198 Comment
  CAS-BOT-BC278479  Festuca idahoensis Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  RSA191941  Festuca idahoensis R. F. Thorne, P. Everett 1963-6-9 32228 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower 335 Comment
  JROH5485  Festuca microstachys John Rawlings 2005-3-30 1016 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing around and in cracks of serpentine rock outcrops in north-facing serpentine grassland (Area H), uphill and west of the exclosure. 146 Comment
  JROH5498  Festuca myuros John H. Thomas 1974-4-19 17166 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5505  Festuca myuros John Rawlings 2013-4-16 1132 San Mateo Jasper Ridge Biological Preserve, Stanford University. In and along Trail 2 extension south of the Dengler Transect after a short uphill section where the trail passes a boulder on the uphill side. 84 Comment
  CAS-BOT-BC278860  Festuca occidentalis W. R. Dudley 1898-7-1 s.n. San Mateo Pescadero Creek Comment
  POM140686  Fragaria californica C. F. Baker 1902-1-15 233 San Mateo Kings Mountain. West side of King's Mountain. Comment
  CAS-BOT-BC457525  Fragaria vesca subsp. californica Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue, San Bruno Mountain Comment
  SEINET11915234  Fragaria vesca subsp. californica L. S. Gill 1930-1 s.n. San Mateo Kuig Mt Comment
  JROH3537  Frangula californica subsp. californica John H. Thomas 1968-5-22 14459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3573  Frangula californica subsp. tomentella John Hunter Thomas 1981-2-14 20214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3576  Frangula californica subsp. tomentella John Hunter Thomas 1981-5-25 20632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM135677  Frankenia salina E. B. Copeland 1903-6-18 3313 San Mateo Half Moon Bay Comment
  SEINET11978026  Frankenia salina E. A. Purer 1933-1 5415 San Mateo Belmont Comment
  CAS-BOT-BC223548  Fraxinus latifolia W. R. Dudley 1894-10-24 s.n. San Mateo Santa Cruz Peninsula. Near San Francisquito Creek Comment
  UC204065  Fraxinus latifolia A. D. E. Elmer Jul 1903 4615 San Mateo San Mateo Creek Comment
Read comments
Sep 4 2011
  POM169361  Fritillaria affinis C. F. Baker 1902-3-30 430 San Mateo Crystal Springs Lake. Comment
  UC204192  Fritillaria affinis A. D. E. Elmer May, 1903 5045 San Mateo Portola Comment
  CAS-BOT-BC130118  Fritillaria affinis Walter Knight; Irja Knight 1965-3-21 990 San Mateo Trillium Gulch near Knife Edge Rock Comment
  CAS-BOT-BC130121  Fritillaria affinis George Oberlander 1949-4-17 81 San Mateo Pilarcitos Canyon 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
  RSA15286  Fritillaria affinis Carl B. Wolf 1927-4-3 254 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  CAS-BOT-BC130210  Fritillaria agrestis Roxana S. Ferris 1921-3-21 2120 San Mateo New Years Point - [Ann] Ano Nuevo Comment
  SJSU14166  Fritillaria biflora H. R. Himes 1989-3-17 San Mateo S end of Buri Buri Ridge on W side of Hwy 280 Comment
  SEINET3886769  Fritillaria lanceolata Robert A. Norris 1984-3-21 4649 San Mateo By Radio Road, San Bruno Mts.; 0 253 Comment
  CAS-BOT-BC130385  Fritillaria liliacea Marion Gallagher; Gladys L. Smith 1978-6-3 4804 San Mateo Farm Hill above Redwood City Comment
  RSA15248  Fritillaria liliacea Carl B. Wolf 1927-2-19 s.n. San Mateo Skyline Blvd. above Spring Valley Lakes, near where Belmont Road crosses Comment
  SEINET12285509  Galium californicum Unknown 1933-1 10379 San Mateo White House Creek Comment
  UC28203  Galium californicum subsp. californicum J. Burtt Davy Jun 21 1893-Jun 23 1893 1144 San Mateo Pilarcitos Lake and Canyon Comment
  UCR121582  Galium californicum subsp. californicum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4982 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  RSA130695  Galium californicum subsp. californicum W. R. Dudley 1906-10-3 s.n. San Mateo Opposite side of Pescadero Creek from [Gruerson's?] old house. Comment
  JROH3794  Galium murale John H. Thomas 1971-4-21 15765 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3804  Galium murale John Hunter Thomas 1987-4-30 24219 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH3802  Galium murale John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI9909  Galium triflorum L. T. Dempster 1956-5-15 1001 San Mateo Lake Pilarcitos Comment
  JROH791  Gamochaeta ustulata John H. Thomas 1977-5-14 18608 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC303469  Gamochaeta ustulata R. E. Frenkel 1964-4-2 415 San Mateo On Spring Valley Ridge Rd, SFWD, at junction of Spring Valley Ridge Rd and Whiting Ridge Rd 347 Comment
  JROH796  Gamochaeta ustulata John Hunter Thomas 1983-4-14 21403 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  RSA218010  Gamochaeta ustulata Phillip Wheeler 1965-5-12 s.n. San Mateo Pig Ranch Ravine; San Bruno Mountains. Comment
  CAS-BOT-BC194559  Garrya elliptica A. D. E. Elmer 1903-2-1 4469 San Mateo Portola Comment
  CAS-BOT-BC194568  Garrya elliptica Helen M. Edwards 1917-2-1 s.n. San Mateo Los Trancos Woods Comment
  RSA181583  Garrya elliptica E. A. McGregor 1907-2-10 s.n. San Mateo Jasper Ridge. 244 Comment
  SBBG34145  Garrya elliptica R. E. Dengler 1960-4-10 9 San Mateo Jasper Ridge, Stanford Biological Reserve 160 Comment
  SEINET4041731  Garrya elliptica D. Demaree 1930-1 7312 San Mateo Los Trancos Woods. Comment
  RSA116686  Garrya elliptica Helen M. Edwards 1917-02 s.n. San Mateo Los Traucos Canon [Canyon]. Comment
  JROH5189  Gastridium phleoides John Hunter Thomas 1982-6-7 21023 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5651  Gastridium phleoides John Rawlings 2014-5-23 1226 San Mateo Jasper Ridge Biological Preserve, Stanford University; just up-slope from the Boat Launch (aka Searsville Lab Landing) 104 Comment
  POM290958  Gastridium phleoides Lyman Benson 1937-7-8 8444 San Mateo Lake Searsville, Stanford, Santa Cruz, San Francisco Bay 121 Comment
  UCD66730  Gastridium phleoides Malcolm A. Nobs; S. Galen Smith 1949-8-26 1610 San Mateo About 1 mile south of Pigeon Point. Comment
  RSA112358  Gaultheria shallon H. L. Mason 1921-07 s.n. San Mateo San Mateo County: Pescadero Creek Comment
  CAS-BOT-BC219101  Genista monspessulana Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Radio Road Comment
  JROH2013  Genista monspessulana John Hunter Thomas 1983-4-3 21307 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  UCD119662  Genista monspessulana Annabelle Kleist 2008-5-28 Wun- 4 San Mateo Woodside, Montelena Court. Comment
  JROH2613  Geranium dissectum John H. Thomas 1973-3-12 16486 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB19618  Geranium dissectum Schulte, John 1963-4-14 San Mateo Jasper Ridge; 3 miles SW of Stanford Campus; between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  JROH2628  Geranium molle John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3154  Gilia achilleifolia subsp. multicaulis John H. Thomas 1971-4-25 15783 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38802  Gilia achilleifolia subsp. multicaulis E. A. Purer 1933-5-8 3609 San Mateo Stevens Creek Comment
  JEPS101989  Gilia clivorum Dean W. Taylor 1994-5-10 14266 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  CAS-BOT-BC303678  Glebionis coronaria Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo San Bruno Mts. Along Guadalupe Canyon Parkway, near school in Lower Colma Canyon Comment
  CAS-BOT-BC303683  Glebionis coronaria Robert S. Jr. Cox 1946-8-10 s.n. San Mateo Half Moon Bay 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
  JROH5826  Glycyrrhiza lepidota Ann Lambrecht 2011-12-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north bank of San Francisquito Cr. near water's edge 83 Comment
  SJSU113  Glycyrrhiza lepidota G. Wight 1929-5-30 San Mateo below Jasper Ridge, Stanford Univ. Comment
  CAS-BOT-BC303849  Gnaphalium John H. Thomas 1961-5-7 9286 San Mateo San Bruno Mt in N part of county 396 Comment
  SEINET11849355  Gnaphalium chilense M. T. Doutt 1931-1 424 San Mateo Portola Comment
  POM358849  Gnaphalium luteoalbum L. S. Rose 1936-2-12 36005 San Mateo Burlingame. 91 Comment
  UC88305  Gnaphalium palustre C. F. Baker 1902-10-20 1860 San Mateo Searsville Pacific Coast, Searsville Comment
  CAS-BOT-BC307437  Gnaphalium palustre George Oberlander 1949-7-30 322 San Mateo Edge of San Andreas Lake, San Francisco Watershed Reserve Comment
  UCR252691  Grindelia A. C. Sanders 2014-8-3 41238 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  CAS-BOT-BC304515  Grindelia hirsutula Walter Knight 1963-11-8 389 San Mateo San Bruno Mt. Along Bayshore highway north of So. San Francisco Comment
  CAS-BOT-BC304535  Grindelia hirsutula George Oberlander 1950-7-15 1099 San Mateo San Francisco Watershed Reserve. Northern Cahill Ridge Comment
  CAS-BOT-BC304544  Grindelia hirsutula W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Peninsula. Near San Mateo Comment
  POM57689  Grindelia hirsutula C. F. Baker 1903-4-8 s.n. San Mateo San Andreas Lake Comment
  RSA137305  Grindelia hirsutula John H. Thomas 1954-5-28 4243 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  SJSU23  Grindelia hirsutula C. D. Duncan 1925-5-23 San Mateo S end Jasper Ridge above Searsville L Comment
  UC1118556  Grindelia hirsutula N. K. Carlson 1935-6-29 105 San Mateo 1 mi s Pescadero; Santa Cruz Quad. Comment
  UC1536845  Grindelia hirsutula G. H. True 1936-6-7 480 San Mateo cove 2 mi s Pescadero 15 Comment
  UC897053  Grindelia hirsutula Lewis S. Rose 1938-8-18 38229 San Mateo Brisbane 1 Comment
  RSA18345  Grindelia stricta var. platyphylla C. B. Wolf 1927-1-29 473 San Mateo Pescadero Comment
  SD88348  Grindelia stricta var. platyphylla Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  UCR240778A  Grindelia stricta var. platyphylla T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3518 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  UC1132184  Hainardia cylindrica A. Hormay 1932-5-29 17 San Mateo San Bruno 1 Comment
  JROH829  Helenium puberulum John H. Thomas 1961-6-14 9542 San Mateo Jasper Ridge Biological Preserve, Stanford University; along stream below dam Comment
  JROH832  Helenium puberulum John H. Thomas 1968-4-19 14293 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH833  Helenium puberulum John H. Thomas 1970-7-5 15658 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH847  Helenium puberulum John Hunter Thomas 1992-6-8 25369 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM54261  Helenium puberulum A. D. E. Elmer 1903-07 4972 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC309533  Helenium puberulum George Oberlander 1949-7-30 318 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  CAS-BOT-BC309534  Helenium puberulum W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Peninsula. El Corte Madera road Comment
  JROH845  Helenium puberulum Carol Zabel 1989-8-11 24 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank, upstream from low-flow crossing on Road C Comment
  UCD132749  Helenium puberulum W. A. Harvey; J. M. Tucker 1948-6-28 1701 San Mateo on ridge around 3 miles north of Pescadero. Comment
  POM369779  Heliotropium curassavicum var. oculatum E. A. Purer 1933-7-27 18190 San Mateo Two miles south of Pigeon Point Comment
  CAS-BOT-BC305923  Helminthotheca echioides Ira L. Wiggins 1977-7-23 22188 San Mateo Bed of San Francispuito [Francisquito] Creek, ca 150 m upstream from Pope Street bridge, Menlo Park side of center line Comment
  CAS-BOT-BC305924  Helminthotheca echioides Ira L. Wiggins 1977-7-23 22188 San Mateo Bed of San Francisquito Creek, ca 150 m upstream from Pope Street bridge, San Mateo County side of center line, Menlo Park Comment
  CAS-BOT-BC313458  Hemizonia congesta subsp. luzulifolia Roxana Stinchfield 1915-10-14 260 San Mateo Cedro Villa, Stanford University, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC314909  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-4-30 224 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC314914  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-8-26 367 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  UC1069542  Hemizonia congesta subsp. luzulifolia G. E. Sindel 1935-8-28 342 San Mateo 2 mi se Crystal Springs Lake; Santa Cruz Quad. 167 Comment
  UC193424  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo 2.2 km e Crystal Springs Lake (on San Mateo Creek); San Mateo Creek Comment
  UC614964  Hemizonia congesta subsp. luzulifolia Beryl O. Schreiber 1932-5-29 308 San Mateo Crystal Springs Comment
  CAS-BOT-BC314933  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1908-8-20 s.n. San Mateo Near causeway between Cr. Srp. Lakes Comment
  UC1584834  Hemizonia congesta subsp. luzulifolia Jerry Powell 1990-5-11 1580 San Mateo at junction of Hwy 280 and Hwy 92 Comment
  SEINET6205044  Hemizonia corymbosa L. S. Rose 1965-1 65100 San Mateo Skyline Blvd & Halt Moon Bay Rd Comment
  POM360316  Hemizonia luzulifolia E. S. Spalding 1923-8-3 s.n. San Mateo 3 miles W of Redwood City, near Pulgas Tunnel. Comment
  SEINET11848430  Hemizonia luzulifolia E. A. Purer 1933-1 5398 San Mateo Bayshore Highway Comment
  RSA185016  Hemizonia pungens subsp. maritima L. S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  JROH252  Heracleum maximum John Hunter Thomas 1986-5-1 23989 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing near San Francisquito Creek Comment
  JROH881  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1957-4-16 6648 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-BC403869  Hesperocnide tenella Margaret A. Barry 1938-5-29 264 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  UCSB24049  Hesperocyparis abramsiana Dutton, H. 1949-9-19 San Mateo Common corners of sections 11 & 12 and 13 & 14 Range 4 West, on the north bank of the North Fork of Butano Creek Comment
  CAS-BOT-BC176203  Hesperolinon congestum Blanche Clear 1938-5-22 s.n. San Mateo On road to Emerald Lake Comment
  JEPS122848  Hesperolinon congestum Adam C. Schneider 2013-5-17 172 San Mateo Crystal Springs Reservoir 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
  JROH2923  Hesperolinon micranthum John H. Thomas 1963-5-15 10093 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2926  Hesperolinon micranthum John H. Thomas 1968-5-22 14460 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2936  Hesperolinon micranthum John Hunter Thomas 1983-6-29 22713 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18376  Hesperolinon micranthum Carl B. Wolf 1927-7-1 532 San Mateo Above Emerald Lake, back of Redwood City. Comment
  CAS-BOT-BC422604  Hesperomecon linearis A. D. E. Elmer 1903-5-1 4594 San Mateo San Bruno Hills Comment
  JROH5556  Heterocodon rariflorum John Rawlings, Toni Corelli 2013-4-16 1139 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension about 115 meters from wooden trail marker near the boundary fence east of Escobar Gate. 148 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
  RSA0074498  Heterotheca camphorata L. R. Abrams 1901-09 2228 San Mateo Menlo Park. Comment
  JEPS125948  Heterotheca sessiliflora subsp. bolanderi D. W. Taylor 2000-7-20 17537 San Mateo Montara Mountain, on Montara State Beach, along dirt road 1 mile W from North Peak. Comment
  CAS-BOT-BC420896  Heuchera micrantha var. diversifolia Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  UC765037  Heuchera micrantha var. erubescens R. F. Hoover 1940-9-1 4546 San Mateo La Honda summit La Honda Comment
  CAS-BOT-BC420900  Heuchera micrantha var. erubescens Josephine D. Randall 1907-7-7 s.n. San Mateo Kings Mt Comment
  RSA0063100  Heuchera micrantha var. hartwegii I. L. Wiggins 1929-7-4 3776 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  CAS-BOT-BC424429  Heuchera pilosissima W. R. Dudley 1900-3-17 s.n. San Mateo By down grade from Montara Mts to San Pedro Comment
  CAS-BOT-BC319635  Hieracium albiflorum W. R. Dudley 1894-7-7 s.n. San Mateo Bear Gulch Road, Santa Cruz Peninsula Comment
  CAS-BOT-BC55431  Hirschfeldia incana Ira L. Wiggins 1975-8-5 22174 San Mateo Bed of San Francisquito Creek, ca. 100 m above Pope Street bridge, both sides of Santa Clara--San Mateo line. Comment
  JROH5217  Holcus lanatus John Hunter Thomas 1989-5-30 24756 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5640  Holcus lanatus John Rawlings 2014-6-2 1255 San Mateo Jasper Ridge Biological Preserve, Stanford University. Down stream a few feet from the low flow crossing of San Francisquito Creek. 81 Comment
  UC38606  Holcus lanatus Michener and Bioletti 1893-6-15 120 San Mateo Baden Comment
  UCD84879  Holcus mollis Collector Unknown 1966-8-30 s.n. San Mateo San Mateo County. Comment
  CAS-BOT-BC228580  Holodiscus discolor Peter W. Fritsch; Lu Lu; Lisa Fritsch; Nathan Fritsch 2012-6-30 1938 San Mateo San Bruno State Park, Summit Loop Trail just above the Eucalyptus grove N of the road from the parking area, NE-facing slope 238 Comment
  POM141561  Holodiscus discolor C. F. Baker 1902-9-2 1552 San Mateo Crystal Springs Lake. Comment
  RSA262239  Holodiscus discolor John H. Thomas 1971-5-30 15982 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  RSA681423  Holodiscus discolor Annuschka Deb 1989-7-19 315 San Mateo YBN [Yerba Buena Nursery], Woodside. Comment
  JROH3687  Holodiscus discolor var. discolor John H. Thomas 1962-7-15 9916 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near northern end of ridge. Comment
  JROH3691  Holodiscus discolor var. discolor John H. Thomas 1974-5-29 17399 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM198993  Hordeum brachyantherum A. D. E. Elmer 1903-06 4857 San Mateo Crystal Springs Lake. Comment
  CDA32405  Hordeum brachyantherum G. M. Gregory 1962-5-1 San Mateo Crocker Hills, Brisbane 0 Comment
  CAS-BOT-BC284685  Hordeum brachyantherum subsp. brachyantherum Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  UC163001  Hordeum brachyantherum subsp. brachyantherum Dr. E. B. Copeland 1903-6-10 3304 San Mateo Montara Point Comment
  CAS-BOT-BC289535  Hordeum brachyantherum subsp. californicum Lewis S. Rose 1956-5-7 56070 San Mateo Skyline Blvd. w. of San Mateo 182 Comment
  JROH5229  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1981-4-27 20510 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5239  Hordeum marinum subsp. gussoneanum John H. Thomas 1971-5-30 15953 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33373  Hordeum marinum subsp. gussoneanum A. D. E. Elmer -May-1901 1660 San Mateo Cooley's [Cooley] Landing Comment
  SEINET10611055  Hordeum marinum subsp. gussoneanum LeRoy R. Abrams Abrams 1660 San Mateo Cooley's Landing. Comment
  SEINET10831781 Image available Hordeum murinum Delzie Demaree 1932-3-27 Demaree 8957 San Mateo Moist bottoms. La Honda Comment
  CAS-BOT-BC289392  Hordeum murinum subsp. glaucum Paul Arnaud 1941-4-6 s.n. San Mateo Redwood City 731 Comment
  CAS-BOT-BC289397  Hordeum murinum subsp. glaucum Ira L. Wiggins 1975-4-17 22143 San Mateo NE side of Southern Pacific righ-of-way between San Francisquito Creek and Willow Road, Menlo Park Comment
  CAS-BOT-BC289458  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10123 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  JROH5671  Hordeum murinum subsp. leporinum John Rawlings 2013-4-10 1129 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Where the brick path ends at the visitor parking lot of the Sun Field Station. 119 Comment
  CAS-BOT-BC271352  Hordeum vulgare John H. Thomas 1971-4-25 15793 San Mateo Intersection of Interstate 280 and Sand Hill Road behind Stanford Univ. Campus Comment
  CAS-BOT-BC271357  Hordeum vulgare Mary Helen Kelson 1956-4-27 150 San Mateo One mile from beach at Pescadero Comment
  SJSU5186  Horkelia californica P. G. Cornelius 1957-6-2 126 San Mateo Half Moon Bay Comment
  HSC18685  Horkelia californica L. S. Rose 1966-8-20 66086 San Mateo San Bruno Mtn., head of Colma Canyon 206 Comment
  UCD113404  Horkelia californica var. californica Collector unknown 1925-6-15 1680 San Mateo Pescadero-Santa Cruz Rd. Comment
  SEINET6755152  Horkelia cuneata subsp. sericea A. A. Heller 1906-6-8 8374 San Mateo Near Ocean View, San Francisco. ( on the Lake Merced side of the Ocean Shore tracks) Comment
  CAS-BOT-BC143921  Horkelia cuneata var. sericea Phillip C. Wheeler 1965-5-11 s.n. San Mateo Pig Ranch Ravine Comment
  CAS-BOT-BC144012  Horkelia marinensis George Oberlander 1951-7-12 1204 San Mateo Clearing in San Andreas Valley, San Francisco Watershed Reserve Comment
  SD27829  Hosackia gracilis Carl B. Wolf 1929-5-10 3703 San Mateo Pigeon Point, south of Pescadero 99 Comment
  SEINET957356  Hosackia gracilis A. D. E. Elmer 1903-1 4860 San Mateo Lake San Andreas Comment
  UC936149  Hydrocotyle moschata O. M. Scott and Sons 1950-4-10 San Mateo San Mateo Comment
  CHSC99214  Hypericum canariense John Dittes; Josephine Guardino 2007-6-30 1457 San Mateo Central Coast; Ano Nuevo State Reserve; coastal terrace ca. 2.4 air-mile SE of Pidgeon Point Lighthouse; east side of Highway 1 on slope south and east of Gazos Creek. Undesignated section of Punta Del Ano Nuevo Land Grant. 21 Comment
  CAS-BOT-BC311390  Hypochaeris glabra J. H. Thomas 1964-4-30 10338 San Mateo Near intersection of El Camino Real and F St., Colma Comment
  CAS-BOT-BC311392  Hypochaeris glabra John H. Thomas 1958-3-19 7051 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC311397  Hypochaeris glabra Fred Hemphill 1973-4-22 778 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  SEINET5554861  Hypochaeris glabra H. S. Gentry 1931-1 97 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UC101765  Hypochaeris glabra Katharine Brandegee 1891-6-1 San Mateo South San Francisco Comment
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Apr 1 2009
  CDA34775  Hypochaeris radicata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .174 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  JROH927  Hypochaeris radicata John H. Thomas 1973-5-5 16771 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH932  Hypochaeris radicata John Hunter Thomas 1981-7-24 20733 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM361226  Hypochaeris radicata E. A. Purer 1933-7-27 5394 San Mateo Two miles south of Pigeon Point Comment
  UCR121563  Hypochaeris radicata George K. Helmkamp, E. A. Helmkamp 1999-6-28 4968 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  CAS-BOT-BC311484  Hypochaeris radicata George Oberlander 1949-4-17 55 San Mateo San Francisco Watershed Reserve. On top of Sawyer Ridge Comment
  CHSC90622  Iris douglasiana Diane Mastalir 1988-3-27 6 San Mateo Hillside 6.7 mi s on hwy 1 from jcn hwy 1 and hwy 92, 2.3 mi e on Pescadero rd. 30 Comment
  SEINET7097928  Iris douglasiana A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  RSA6296  Iris douglasiana D. D. Keck 1932-5-6 1486 San Mateo Hills just west of Millbrae Highlands 120 Comment
  CAS-BOT-BC133650  Iris longipetala William R. Dudley 1893-4-1 s.n. San Mateo So. San Francisco, above Millbrae Comment
  CAS-BOT-BC133670  Iris longipetala Walter Knight; Irja Knight 1964-1-15 508 San Mateo South slope, Colma Canyon Comment
  CAS-BOT-BC133672  Iris longipetala Javier Penalosa 1963-3-30 2707 San Mateo North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  UC1057443  Iris longipetala G. Thomas Robbins 1937-4-11 82 San Mateo slopes above Spring Valley Lake (s of San Francisco) Comment
  JROH4435  Iris pseudacorus M. Whitley 1990-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By floats in Searsville Lake. Comment
  CAS-BOT-BC57727  Isoetes howellii W. R. Dudley 1908-6-26 s.n. San Mateo W. of Seafield Pond, Coal Mine Ridge Comment
  CAS-BOT-BC57730  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley Pond Comment
  SJSU15912  Isolepis carinata John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1738 San Mateo South end of Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC112620  Isolepis cernua W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Beach pasture, Pescadero Comment
  CAS-BOT-BC112627  Isolepis cernua H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach, near Pescadero. Comment
  CAS-BOT-BC112607  Isolepis cernua Herbert L. Mason 1949-7-7 14027 San Mateo Nouth of Gazos Creek near the ocean. Southern part of county. Comment
  CAS-BOT-BC112622  Isolepis cernua W. R. Dudley 1909-10-4 s.n. San Mateo E. twin-pond, North San Mateo County. Comment
  CAS-BOT-BC340138  Jaumea carnosa Walter Knight; Irja Knight 1964-9-2 718 San Mateo San Bruno Mountain. At Pt. San Bruno Comment
  CAS-BOT-BC102323  Juglans hindsii Ed Holm; Field Biol. Class, San Mateo High School 1984-7-24 s.n. San Mateo In creekbed of San Mateo Creek next to Polhemus Rd. just before it joins Crystal Springs Rd. and about 100 yds. below Comment
  JROH2777  Juglans hindsii John Hunter Thomas 1987-4-16 24203 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC008165  Juncus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC173706  Juncus balticus Peter Rubtzoff 1977-11-24 9146 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC173698  Juncus bufonius Peter Rubtzoff 1977-6-21 9066 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET8544724  Juncus bufonius Charles Piper Smith 1905-4-1 728 San Mateo Stanford Univ. Roadside near Stockfarm bridge. Comment
  JROH4452  Juncus bufonius var. bufonius John Hunter Thomas 1978-5-23 19225 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4454  Juncus bufonius var. bufonius Carol Zabel 2003-3-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along both sides of Road F at intersection with Trail 15. Comment
  RSA276358  Juncus bufonius var. congestus Jane Turner, Francis M. Ball 1962-7-7 SK&F- 1083 San Mateo Highway 1, ca. 10 miles N of Santa Cruz County line. Comment
  UCD164602  Juncus effusus subsp. pacificus Peter Rubtzoff; Roman Gankin 1975-9-11 8373 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA786663  Juncus effusus var. brunneus Peter Rubtzoff, Roman Gankin 1975-9-11 8372 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA786664  Juncus effusus var. pacificus Peter Rubtzoff, Roman Gankin 1975-9-11 8373 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  SEINET3879467  Juncus ensifolius K. Thorne, J. Chandler 1986-7-25 4934 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach.; 0 Comment
  JROH4474  Juncus hesperius Toni Corelli 2008-10-1 346 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake in muddy area on shelf of dried lake bed. 103 Comment
  UC1101029  Juncus hesperius Herbert L. Mason and Verne Grant 1946-8-28 13088 San Mateo s of San Francisco (on Santa Cruz-Daly City Road #5) Comment
  UC1101030  Juncus hesperius Verne Grant and Herbert L. Mason 1946-8-28 13081 San Mateo n of San Francisco county prison Comment
  POM259791  Juncus lescurii I. L. Wiggins, Roxana S. Ferris 1939-8-2 9289 San Mateo Ano Nuevo Point Comment
  JROH4480  Juncus occidentalis John H. Thomas 1974-4-4 17080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC14912  Juncus occidentalis Joseph Burtt Davy 1893-6-22 761 San Mateo Lake Vilarcitos Comment
  JEPS85550  Juncus patens Craig Dremann 1986-9-13 334 San Mateo Stage road between San Gregorio and Pompanio Creek Comment
  POM292635  Juncus patens Lyman Benson 1937-7-15 8451 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains. 244 Comment
  SD260865  Juncus phaeocephalus Peter Rubtzoff 1976-6-30 8706 San Mateo Central Coast: San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence. Dirt roadside near a marsh. 182 Comment
  UCD163589  Juncus phaeocephalus Peter Rubtzoff 1980-8-4 9561 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
  JROH4515  Juncus xiphioides John Hunter Thomas 1978-5-16 19219 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM289989  Juncus xiphioides Lyman Benson 1937-7-25 8474 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  JROH4037  Keckiella antirrhinoides var. antirrhinoides D. E. Breedlove 1971-5-31 19363 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  SJSU15768  Koeleria macrantha Toni Corelli 2010-4-16 615 San Mateo Pedro Point Headlands, Pacifica CA. Off of South Ridge Road Trail 180 Comment
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Sep 10 2021
  UC501383  Koeleria macrantha David D. Keck 1932-5-6 1476 San Mateo above Millbrae Highlands; above Millbrae Highlands Comment
  UCD86022  Koeleria macrantha A. A. Beetle 1942-6-11 3597 San Mateo rt. 5, 15 miles south of San Bruno. Comment
  CAS-BOT-BC273738  Koeleria pyramidata Ned Cahill 1974-4-30 226 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH945  Lactuca saligna John H. Thomas 1974-6-30 17459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC340468  Lactuca saligna John Thomas Howell 1930-11-9 5711 San Mateo On the Skyline Boulevard in the hills above Millbrae Comment
  JROH949  Lactuca serriola John H. Thomas 1964-11-29 10535 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville Dam Comment
  UCR256303  Lactuca serriola Peter Rubtzoff 1975-9-11 8379 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  JEPS20287  Lagophylla ramosissima Lewis S. Rose 1955-9-19 55176 San Mateo 7 mi w of Saratoga; Skyline Boulevard 685 Comment
  CAS-BOT-BC341625  Lagophylla ramosissima W. R. Dudley 1905-9-23 s.n. San Mateo Santa Cruz Mountain Peninsula. Alpine road, Black Mountain Comment
  UC1537552  Lamium amplexicaule Gordon H. True Jr. 1937-3-31 617 San Mateo near Salada Beach 60 Comment
  CAS-BOT-BC339047  Lasthenia californica Javier Penalosa 1963-3-30 2727 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  CAS-BOT-BC339059  Lasthenia californica H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC339091  Lasthenia californica John H. Thomas 1971-5-2 15825 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  CDA33782  Lasthenia californica D. G. Kelch 2011-3-13 11 .047 San Mateo Pacifica. Along sea bluffs Comment
  POM55213  Lasthenia californica A. D. E. Elmer 1903-04 4507 San Mateo San Bruno Hills Comment
  RSA152139  Lasthenia californica John H. Thomas 1961-5-7 9251 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  CAS-BOT-BC339081  Lasthenia californica W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Above Seal Cove Comment
  POM319929  Lasthenia californica Barbara Shervanick 1973-4-1 802 San Mateo San Bruno Mt. first summit on Crocker Road; Mt. Range: San Bruno Mountains; Drainage Area: San Francisco Bay. Comment
  RSA585988  Lasthenia californica Adree M. Desrochers 1988-4-21 306 San Mateo Near Palo Alto. Near Palo Alto. Jasper Ridge, Biological Preserve of Stanford University. Comment
  RSA8340  Lasthenia californica L. S. Rose 1933-4-30 33128 San Mateo Redwood City Comment
  JEPS17982  Lasthenia californica subsp. californica George B. Rossbach 1955-3-26 517 San Mateo n radio tower (upper n slope of mountain); San Bruno Mountain 335 Comment
  JROH5789  Lasthenia californica subsp. californica John Rawlings 2016-5-3 1781 San Mateo Jasper Ridge Biological Preserve, Stanford University; bare, rocky, sepentinite about 30 yards west of Rd F in Area C 177 Comment
  UC1537021  Lasthenia californica subsp. californica Gordon H. True Jr. 1936-6-7 483 San Mateo top of ocean bluff at cove 2 mi. s Pescadero 15 Comment
  CAS-BOT-BC324425  Lasthenia californica subsp. macrantha Kenton L. Chambers 1956-6-20 1045 San Mateo Pebble Beach near Pescadero Point, on bluff between Highway 1 and the ocean Comment
  JEPS98726  Lasthenia glabrata subsp. glabrata Raymund Chan 1997-4-12 97012 San Mateo 50 m S of Edgewood Road just before its junction with Canada Road, W of I-280; watershed property; plants not visible from road Comment
  UC1142638  Lasthenia glabrata subsp. glabrata Edw. L. Greene 1886-5-11 San Mateo Belmont Comment
  RSA51288  Lasthenia glabrata subsp. glabrata Peter H. Raven 1950-4-10 1615 San Mateo Hwy 101 at Redwood City. 91 Comment
  CAS-BOT-BC355548  Lasthenia glabrata var. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
  SJSU2272  Lasthenia minor C. W. Sharsmith 1947-3-13 6753 San Mateo Pescadero Beach near Pescadero Point Comment
  UC188985  Lasthenia minor Michener and Bioletti 1892-5-1 San Mateo Cemeteries Comment
  UCR121579  Lasthenia minor George K. Helmkamp, E. A. Helmkamp 1999-6-28 5013 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  SFV3758  Lasthenia minor B. J. McCaskill 1954-5-8 295 San Mateo Moss Beach. On bank above beach. Comment
  JROH2028  Lathyrus latifolius John H. Thomas 1962-7-15 9924 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam 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
  JROH2041  Lathyrus vestitus var. vestitus John Hunter Thomas 1992-4-23 25157 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  UC89164  Layia chrysanthemoides K. Brandegee 1885-5-1 San Mateo Millbrae Comment
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Sep 9 2011
  SEINET11811294  Layia chrysanthemoides Unknown 1932-1 9101 San Mateo above Spring Valley Lake Comment
  CAS-BOT-BC321069  Layia gaillardioides Lewis S. Rose 1935-5-4 35149 San Mateo Burlingame Comment
  CAS-BOT-BC321093  Layia gaillardioides W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula, hills SW of Baden Comment
  CAS-BOT-BC327461  Layia hieracioides Fred Hemphill 1973-4-22 729 San Mateo San Carlos. Chaparral area N of Malabar Rd and Melendy Dr. 207 Comment
  CAS-BOT-BC327502  Layia hieracioides Dr. E Goodman 1922-5-23 s.n. San Mateo San Bruno hills Comment
  JEPS22902  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo 5 mi sw Palo Alto; Searsville Lake 152 Comment
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Jul 14 2009
  JEPS27361  Layia hieracioides Rimo Bacigalupi with Jim Roof and L. R. Heckard 1961-4-24 7621 San Mateo lateral ridge below and se of end of paved ridge-top road just e KRON television tower and station (Guadalupe Valley side of mt.); San Bruno Mountain 304 Comment
  UC828938  Layia hieracioides John Thomas Howell 1938-5-1 13769 San Mateo Colma Canyon Comment
  CAS-BOT-BC327454  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo Skyline Boulevard, east of Salada, northern San Mateo County. Comment
  CAS-BOT-BC327466  Layia hieracioides John H. Thomas 1950-4-9 1491 San Mateo About 2--3 miles W of Santa Cruz. Comment
  CAS-BOT-BC327507  Layia hieracioides L. R. Abrams 1907-8-26 s.n. San Mateo King's Mt., Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC327527  Layia hieracioides James I. McMurphy 1909-5-25 s.n. San Mateo Grade W of Crystal Springs Lakes Comment
  CAS-BOT-BC352222  Layia hieracioides Peter Rubtzoff 1978-7-8 9221 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  POM298308  Layia hieracioides D. D. Keck, Wm Hiesey 1940-6-1 5166 San Mateo Skyline Blvd. opposite N end of Lake San Andreas. 137 Comment
  CAS-BOT-BC382080  Layia platyglossa Le Roy Abrams 1901-5-5 1565 San Mateo Woodside Comment
  CAS-BOT-BC382082  Layia platyglossa Arthur Spiegler 1952-4-26 25 San Mateo 4 miles from Woodside on Canada Road to Skyline Blvd Comment
  CAS-BOT-BC382087  Layia platyglossa W. R. Dudley 1909-4-27 s.n. San Mateo Santa Cruz Mountain Peninsula: Whipple Road near Blacksmith shop between Woodside and Crystal Springs Lakes Comment
  CAS-BOT-BC382090  Layia platyglossa Elizabeth McClintock 1978-3-25 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC382092  Layia platyglossa John H. Thomas 1969-4-24 14910 San Mateo Near Canada College, Redwood City, near Farm Hill Drive Comment
  CAS-BOT-BC382220  Layia platyglossa David D. Keck 1932-6-18 1980 San Mateo Skyline Blvd. at Langley Hill (SW of Stanford University) 600 Comment
  CAS-BOT-BC266607  Legenere limosa W. R. Dudley 1906-5-22 s.n. San Mateo Santa Cruz Mountain Peninsula. Ponds, Coal Mine Ridge Comment
  JROH5935  Lemna Ann Lambrecht 2009-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek crossing at Preserve boundary fence along Sand Hill Road. 65 Comment
  CAS-BOT-BC537272  Lemna minor D E Breedlove 1974-5-13 36220 San Mateo Brushy slopes San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC527273  Lemna minuta Roxana S. Ferris 1921-3-20 2114 a San Mateo Alpine Creek Road near juncture with Pescadero Road Comment
  CAS-BOT-BC527274  Lemna minuta Roxana S. Ferris 1920-10-1 2100 San Mateo 1st mud lake, Coal Mine Ridge, Santa Cruz Mountain Peninsula Comment
  RSA18088  Lemna minuta Carl B. Wolf 1929-4-29 3660 San Mateo 10 miles south of San Francisco, Skyline Drive Comment
  CAS-BOT-BC221522  Lepechinia calycina George Oberlander 1940-5-31 142 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC221527  Lepechinia calycina Margaret A. Barry 1937-6-24 193 San Mateo On Coal Mine Ridge Comment
  POM190253  Lepechinia calycina D. D. Keck 1932-5-25 1779 San Mateo Hills 2 miles W of Belmont Comment
  SEINET12277319  Lepechinia calycina Unknown 1932-1 9175 San Mateo Gov. Rolph's Estate Comment
  CAS-BOT-BC89135  Lepidium didymum H. L. Mason 1921-5-29 s.n. San Mateo Pebble Beach near Pescadero. Comment
  UCD115359  Lepidium didymum J. D. Skoss 1948-7-25 53 San Mateo San Vicente Canyon near Montara. Comment
  UCD115701  Lepidium latifolium John Thomas Howell 1978-7-18 53189 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  CAS-BOT-BC12601  Lepidium nitidum John H. Thomas 1974-4-11 17138 A San Mateo To the southeast of Canada Road and Edgewood Road. Northwest of Woodside. 152 Comment
  CAS-BOT-BC12752  Lepidium oxycarpum David D. Keck 1932-3-24 1401 San Mateo Redwood City. At border of San Francisco Bay. Comment
  JROH5725  Leptochloa fusca subsp. fascicularis John Rawlings 2015-9-22 1638 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  JROH3172  Leptosiphon androsaceus John H. Thomas 1971-4-10 15750 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3174  Leptosiphon androsaceus L. Fletcher 1986-4-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC729676  Leptosiphon androsaceus Carl B. Wolf 1929-5-26 3731 San Mateo s of Pescadero; Pebble Beach Comment
  OBI43249  Leptosiphon androsaceus Delzie Demaree 1932-4-27 9020 San Mateo Dry fields above Spring Valley Lakes Comment
  RSA12467  Leptosiphon androsaceus Harry A. Dutton 1900-4-3 5827 San Mateo Woodside serpentine [?] Comment
  JROH3180  Leptosiphon bicolor Carol Zabel 1989-5-8 16 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 just before intersection with Trail 10 Comment
  SJSU15803  Leptosiphon croceus Toni Corelli 2015-5-3 1193 San Mateo Northern edge of Fitzgerald Marine Reserve, Moss Beach also know as Vallemar Bluff 14 Comment
  CAS-BOT-BC226725  Leptosiphon latisectus W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Peninsula. Near Colma Comment
  POM65529  Leptosiphon liniflorus A. D. E. Elmer 1903-06 4704 San Mateo Crystal Springs Lake, southern end. Comment
  RSA101022  Leptosiphon liniflorus G. Oberlander 1949-4-18 84 San Mateo South boundary, San Francisco Watershed Reserve Comment
  RSA0103656  Leptosiphon parviflorus H. L. Mason 1935-5-21 8315 San Mateo Pebble Beach, Pescadero. Comment
  UC133724  Leptosiphon rosaceus Dr. E. B. Copeland 1903-6-6 3300 San Mateo Montara Point Comment
  RSA0103658  Leptosiphon rosaceus E. B. Copeland 1903-6-6 3300 San Mateo Montara Point. Comment
  UCD103096  Leptospermum laevigatum T. C. Fuller 1969-5-15 18476 San Mateo Highway 92 to San Mateo, E limits of Half Moon Bay. Comment
  CAS-BOT-BC123030  Lessingia arachnoidea Charles Fuller Baker 1902-9-2 1548 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC324069  Lessingia arachnoidea J. H. Thomas 1958-9-15 7473 San Mateo 0.4 miles north of dam on San Mateo Creek along Skyline Blvd. 91 Comment
  JEPS20591  Lessingia arachnoidea John Thomas Howell 1926-10-9 2220 A San Mateo near Crystal Springs Lake 91 Comment
  RSA195537  Lessingia arachnoidea John H. Thomas 1958-9-15 7473 San Mateo 0.4 miles north of Dam on San Mateo Creek along Skyline Blvd 91 Comment
  UC1287458  Lessingia arachnoidea Willard Spence 1960-10-16 634 San Mateo Skyline Blvd. Crystal Springs Lake (along roadside) Comment
  UCD134048  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo Crystal Springs Lakes, west of San Mateo. 243 Comment
  JROH1007  Lessingia glandulifera var. glandulifera John H. Thomas 1961-6-7 9532 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC324185  Lessingia hololeuca LeRoy Abrams 1907-10-12 s.n. San Mateo Portola Comment
  JROH1035  Lessingia hololeuca John Hunter Thomas 1982-9-23 21164 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM57787  Lessingia hololeuca L. R. Abrams 1900-10 1004 San Mateo Porlota (?) Comment
  SEINET10617599 Image available Lessingia hololeuca var. arachnoidea Charles F. Baker 1902-9-2 Baker 1548 San Mateo Crystal Springs Lake. Large colonies along roadsides. Comment
  RSA176749  Lessingia tenuis John H. Thomas 1963-5-15 10091 San Mateo Jasper Ridge Biological Experimental Area. 5 miles SW of Palo Alto Comment
  CAS-BOT-BC444392  Lewisia rediviva John H. Thomas 1969-4-24 14901 San Mateo Near Canada College, Redwood City, near Farm Hill Drive. Comment
  CAS-BOT-BC273562  Leymus californicus Dr. Kellogg No date on label s.n. San Mateo Unspecified Comment
  UCD61319  Leymus californicus G. L. Stebbins Jr. 1941-4-26 3089 San Mateo 1 mile Northeast of La Honda, along San Gregorio Creek. Comment
  CAS-BOT-BC283695  Leymus condensatus Elizabeth McClintock; Paul Reeberg 1989-5-24 s.n. San Mateo San Bruno Mountains. At Shearwater, near Bayshore Blvd 7 Comment
  JEPS71199  Leymus triticoides William S. Cooper 1919-7-22 214 San Mateo Ano Nuevo Pt. Comment
  UC306542  Ligusticum apiifolium A. D. E. Elmer June 1903 4966 San Mateo San Mateo Comment
  SEINET6633381  Ligusticum apiifolium A. D. E. Elmer 1903-1 4803 San Mateo San Mateo Comment
  CAS-BOT-BC451667  Lilaea scilloides Carl B. Wolf 1929-4-29 3663 San Mateo 1 mi. so. of Portola in sm. reservoir Comment
  RSA3936  Lilaea scilloides W. R. Dudley 1893-05 s.n. San Mateo Santa Cruz Mountain peninsula: Back of Mira Vista, near Stanford University Comment
  CAS-BOT-BC130796  Lilium pardalinum Ira L. Wiggins 1929-7-4 3771 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Comment
  RSA14962  Limnanthes douglasii subsp. douglasii L. S. Rose 1935-5-4 35146 San Mateo Skyline Blvd., W. of San Bruno. Comment
  JROH4053  Limosella acaulis John Hunter Thomas 1980-11-12 20166 San Mateo Jasper Ridge Biological Preserve, Stanford University. Ground of delta Comment
  UC52732  Linanthus androsaceus Ivan Tidestrom May 1894 San Mateo San Mateo Comment
  SEINET4854778  Linanthus croceus Alice Eastwood 1901-5-19 s.n. San Mateo Blenheim. Comment
  CDA982  Linanthus liniflorus D. G. Kelch 2002-5-6 2 .011 San Mateo Crystal Springs Reservoir. Comment
Read comments
Oct 24 2021
  SD39367  Linum californicum McCallum 1933-5-24 3707 San Mateo Fields on Stanford Campus. Comment
  CAS-BOT-BC36068  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1900-9-9 s.n. San Mateo La Honda Comment
  CAS-BOT-BC36071  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-10-1 s.n. San Mateo Bear Gulch, Sierra Morena Comment
  CAS-BOT-BC36073  Lithocarpus densiflorus var. densiflorus George Oberlander 1949-8-20 334 San Mateo Southern boundary, Cahill Ridge Comment
  POM270415A  Lithocarpus densiflorus var. densiflorus Lyman Benson 1932-7-25 3952 San Mateo Kings Mt. above Woodside; San Francisquito Cr. watershed. 305 Comment
  CAS-BOT-BC36069  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1895-3-26 s.n. San Mateo Beyond Post Office and near Mill on Alpine road Comment
  CAS-BOT-BC430771  Lithophragma affine A. A. Heller 1907-4-25 8464 San Mateo San Bruno Hills Comment
  CAS-BOT-BC430776  Lithophragma affine Margaret A. Barry 1937-5-1 52 San Mateo Coal Mine Ridge Comment
  JEPS23933  Lithophragma heterophyllum Volney Rattan Apr 1883 San Mateo Millbrae Comment
  RSA159426  Lithophragma heterophyllum John H. Thomas 1961-5-14 9361 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  UC402461  Lithophragma heterophyllum Milo S. Baker May 1904 San Mateo near Burlingame; near Burlingame Comment
  RSA101014  Lithophragma heterophyllum G. Oberlander 1950-4-23 851 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  JROH1567  Lobularia maritima John Hunter Thomas 1983-2-21 21284 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC342308  Logfia filaginoides Peter H. Raven 1950-4-16 1803 San Mateo Summit ridge, San Bruno Mts. 243 Comment
  JROH740  Logfia gallica John Hunter Thomas 1981-5-8 20552 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC173830  Lolium multiflorum Peter Rubtzoff 1977-6-21 9058 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  CAS-BOT-BC283233  Lolium multiflorum Ned Cahill 1974-4-29 176 San Mateo Near the intersection of Canada and Edgewood Rds, about 3 miles W from Redwood City Comment
  SEINET13944393 Image available Lomatium dasycarpum Lewis S. Rose 1950-1 50137 San Mateo Emerald Lake region. Hills W of Redwood City. Alt ca 800 ft 244 Comment
  JEPS23880  Lomatium dasycarpum subsp. dasycarpum Le Roy Abrams 1902-5-11 2447 San Mateo Crystal Springs Lake Comment
  JROH270  Lomatium dasycarpum subsp. dasycarpum John Hunter Thomas 1987-4-30 24220 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC144367  Lomatium dasycarpum subsp. dasycarpum C. F. Baker 1902-4-6 460 San Mateo Crystal Springs Lake Comment
  UC75215  Lomatium dasycarpum subsp. dasycarpum C. F. Baker 1902-4-6 461 San Mateo Crystal Springs Lake Comment
  RSA184857  Lomatium dasycarpum subsp. dasycarpum L. S. Rose 1965-4-22 65027 San Mateo San Bruno Mountain, south of parking lot 366 Comment
  JROH274  Lomatium macrocarpum John H. Thomas 1962-5-31 9894 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC240583  Lonicera hispidula Ned Cahill 1974-5-13 263 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC240584  Lonicera hispidula Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC240593  Lonicera hispidula George Oberlander 1949-5-21 192 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC240594  Lonicera hispidula W. R. Dudley 1896-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Creek, Santa Cruz Mts. Comment
  JROH1652  Lonicera hispidula John H. Thomas 1970-7-5 15664 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD18547  Lonicera hispidula Roman Gankin 1950-7-9 18 San Mateo west side of the Peninsula Coast Range, San Mateo County Memorial Park, redwood belt. 213 Comment
  POM284223  Lonicera hispidula var. vacillans Lyman Benson 1930-5-3 2098 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  RSA120037  Lonicera hispidula var. vacillans G. H. Mallory 1919-10 s.n. San Mateo Near Searsville Lake; Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC243961  Lonicera involucrata var. ledebourii John H. Thomas 1967-5-2 12802 San Mateo About 1/4 mile up Market Street from new school in canyon, San Bruno Mountain Comment
  CAS-BOT-BC243973  Lonicera involucrata var. ledebourii W. R. Dudley 1894-3-26 s.n. San Mateo Near Lobitos Creek, Santa Cruz Mountain Peninsula Comment
  UC1125280  Lonicera involucrata var. ledebourii N. K. Carlson 1935-6-28 96 San Mateo 2 1/2 mi e Pigeon Point; Santa Cruz Quadrangle Comment
  CAS-BOT-BC290619  Lotus Peter Rubtzoff 1987-7-31 9821 San Mateo Best Products Company parking lot on east side of Gellert Blvd. north of Westborough Blvd. intersection, South San Francisco. Comment
  RSA187498  Lotus corniculatus John H. Thomas 1954-6-11 4271 San Mateo 0.8 miles north of Pescadero Creek. 30 Comment
  SEINET957266  Lotus corniculatus Lewis S. Rose 1955-1 55107 San Mateo Pescadero 5 Comment
  UC665645  Lotus formosissimus Ethel Crum 1934-4-29 1701 San Mateo s of Pescadero 30 Comment
  UC15648  Lotus micranthus J. Burtt Davy Jun 21 1893-Jun 23 1893 1156 San Mateo Pilarcitos Lake and Canyon Comment
  SEINET12154207  Lotus micranthus Unknown 1932-1 9017 San Mateo Gov. Rolph Estate Comment
  UC202829  Lotus wrangelianus A. D. E. Elmer 1903-5-1 4741 San Mateo Belmont Comment
  JEPS83227  Lupinus Adele Lewis Grant 1917-3-6 938 San Mateo Pebble Beach near Pescadero; near Pescadero, Pebble Beach 3 Comment
  CAS-BOT-BC198274  Lupinus unspecified 1982-4-24 s.n. San Mateo San Francisco Peninsula Comment
  SEINET5766884 Image available Lupinus affinis Dunn 1946-1 2601 San Mateo top of Ganyon Rd., 0.7 mi E of jct with Skyline Blvd., jct is 20.8 mi from bridge on N side of Boulder Creek; San Francisco Peninsula Comment
  UC1129419  Lupinus affinis H. S. Yates 1935-5-8 5209 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  UC201919  Lupinus affinis A. D. E. Elmer April, 1903 5021 San Mateo Portola Comment
  POM77734  Lupinus affinis C. P. Smith 1921-4-9 3290 San Mateo San Mateo Canyon Comment
  SD116302  Lupinus affinis David B. Dunn, Brown 1946-5-15 2542 San Mateo Open lush meadow in the hilltops of the San Francisco Peninsula, 3.7 miles NE of La Honda on the SE side of the highway from Woodside to La Honda Comment
  SEINET10488359  Lupinus affinis Charles F. Baker 1902-4-6 Baker 473 San Mateo Crystal springs lake. Colonies frequent along banks and grassy slopes, Especially near borders of thickets Comment
  UCD105911  Lupinus albifrons Leslie Fenster 1964-3-22 11 San Mateo 3 miles up (south) Polhemus Road, Cahill Ridge. 152 Comment
  CAS-BOT-BC195808  Lupinus albifrons var. albifrons Fred Hemphill 1973-3-1 632 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC195811  Lupinus albifrons var. albifrons Fred Hemphill 1973-4-8 719 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  POM177245  Lupinus albifrons var. albifrons L. R. Abrams 1904-4-10 38 San Mateo San Mateo Canyon, Santa Cruz Mts. 122 Comment
  RSA15300  Lupinus albifrons var. albifrons Carl B. Wolf 1927-4-3 270 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  CAS-BOT-BC195816  Lupinus albifrons var. albifrons W. R. Dudley 1894-4-21 s.n. San Mateo Ravine of San Mateo Creek 3 miles above town Comment
  CAS-BOT-BC196123  Lupinus albifrons var. collinus Elizabeth McClintock 1967-4-16 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC196124  Lupinus albifrons var. collinus Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo Above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC196433  Lupinus arboreus John Thomas Howell 1933-4-9 10973 San Mateo 2 miles n. of Pigeon Pt. Comment
  SBBG11114  Lupinus arboreus D. E. Breedlove 1961-6-18 599 San Mateo 3 mi S of rd to Half Moon Bay 365 Comment
  SEINET10488471  Lupinus arboreus Marcus E. Jones 1881-6-30 Jones 2322 San Mateo Comment
  UCSC007761  Lupinus arboreus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CHSC57379  Lupinus bicolor Sandy Trimble 1987-4-13 11 San Mateo On e slope of Hwy 84, 6.7 mi w of Hwy 1, and 8.6 mi e of Hwy 35. 274 Comment
  JROH2118  Lupinus bicolor John Hunter Thomas 1984-4-2 23273 3 H San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge fence Comment
  UC703121  Lupinus formosus Alice Eastwood, John Thomas Howell 1941-7-4 9688 San Mateo Crystal Spring Lakes Comment
  SEINET4853650  Lupinus lasiotropis Carl F. Baker Not on sheet 470 San Mateo Crystal Springs Lake. Comment
  SEINET10961856 Image available Lupinus latifolius Charles F. Baker Baker 470 San Mateo Crystal Springs Lake. Comment
  POM276512  Lupinus latifolius subsp. latifolius Lyman D. Benson 1935-4-27 6420 San Mateo La Honda Road, Santa Cruz Mts, east of Skyline Blvd., San Francisco Bay watershed. 457 Comment
  POM87760  Lupinus latifolius subsp. latifolius L. R. Abrams 1902-5-11 2449 San Mateo San Mateo Canyon. Comment
  JROH2123  Lupinus latifolius var. latifolius John H. Thomas 1977-4-29 18575 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC15897  Lupinus latifolius var. latifolius Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  JROH2133  Lupinus nanus John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2142  Lupinus nanus John Hunter Thomas 1991-4-25 24995 San Mateo Jasper Ridge Biological Preserve, Stanford University; Rattlesnake Rocks Comment
  JROH2144  Lupinus nanus Toni Corelli 2010-3-29 363 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Road E at junction of Trail 11 and Trail 9 106 Comment
  UC201937  Lupinus nanus W. A. Setchell 1912-5-26 San Mateo Montara Comment
  UCSB16951  Lupinus nanus Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  POM77724  Lupinus nanus subsp. latifolius C. P. Smith 1922-4-22 3494 San Mateo Belmont, highway south. Comment
  CAS-BOT-BC157981  Lupinus polycarpus Peter Rubtzoff 1979-7-26 9296 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In upper par to fEast Fork Colma Creek canyon area Comment
  UCD23307  Lupinus polyphyllus Alan T. Whittemore 1976-5-29 114 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 Comment
  UC201953  Lupinus succulentus A. D. E. Elmer June, 1903 4681 San Mateo San Pedro Comment
  POM276524  Lupinus succulentus Lyman D. Benson 1930-4-27 2077 San Mateo Stanford University. 122 Comment
  SEINET10490986  Lupinus succulentus var. succulentus Smith 1948-4-23 Smith 48142 San Mateo Hwy 1. San Pedro Point, north grade. Comment
  SEINET10870826  Lupinus vallicola subsp. apricus Charles Piper Smith 1946-3-26 Smith 46118 San Mateo Woodside, 2.3 m N. Comment
  POM181506  Lupinus variicolor H. F. Copeland 1928-2-25 983 San Mateo Montara. Comment
  RSA21949  Lupinus variicolor Alice Eastwood, John T. Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  UC903067  Lupinus variicolor Ethel Crum 1934-4-29 1699 San Mateo 4 mi s Pescadero (open slope near ocean); s of Pescadero Comment
  RSA162482  Lupinus variicolor E. K. Balls 1963-5-22 12067 San Mateo 2 mi. N. from turn out to San Gregorio, State Hwy. #1. 15 Comment
  RSA176707  Lupinus variicolor John H. Thomas 1964-6-28 10437 San Mateo Along highway 1 near Pedro Point. Comment
  SEINET10489094  Lupinus variicolor Wheeler 1965-6-13 WHEELER UMO 104126 San Mateo San bruno mtn. Colma canyon. Comment
  SEINET13198377 Image available Lupinus versicolor A. G. Vestal 1937-6-15 s.n. San Mateo Comment
  POM290438  Luzula comosa Arthur L. Cohen 1935-4-21 634 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  UCR228239  Luzula subsessilis Peter F. Zika 2010-5-1 24790 San Mateo San Francisco Bay, Santa Cruz Mountains, southeast shore of Alpine Pond 660 Comment
  UCSB7479  Lysichiton americanus Horton, Sam 1969-3-28 San Mateo Canyon Road, 1.4 miles east of Cloverdale Road, Butano 152 Comment
  JROH3366  Lysimachia arvensis John H. Thomas 1975-4-19 17791 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH2944  Lythrum hyssopifolia John H. Thomas 1967-11-5 14126 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SFV2436  Lythrum hyssopifolia J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1 about 10 miles north of Santa Cruz County line. Drainage ditch beside road. 30 Comment
  UC1190031  Lythrum hyssopifolia J. H. Thomas 1954-5-28 4242 San Mateo just n of South San Francisco (San Bruno Mountain); San Bruno Mountain 30 Comment
  RSA133887  Madia capitata John H. Thomas 1959-8-16 8064 San Mateo About two miles southwest of Pescadero. 61 Comment
  SD49787  Madia capitata J. H. Thomas 1959-8-16 8064 San Mateo 2.0 miles soputhwest of Pescadero. 60 Comment
  JEPS121503  Madia elegans Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 299 San Mateo Crystal Springs Reservoir Comment
  JEPS20312  Madia exigua Lewis S. Rose 1956-5-28 56083 San Mateo hills w Redwood City; Emerald Lake 182 Comment
  JROH1047  Madia exigua John H. Thomas 1975-5-26 17903 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1052  Madia exigua John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM362166  Madia exigua D. D. Keck 1932-5-11 1761 San Mateo Above Searsville Lake, La Honda road, east slope of Santa Cruz Mountains, San Mateo Mountains Comment
  CAS-BOT-BC343326  Madia gracilis W. R. Dudley 1894-5-20 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Redwood City Comment
  CAS-BOT-BC343338  Madia gracilis David D. Keck 1932-6-1 1787 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mtns. 305 Comment
  JROH1072  Madia gracilis D. E. Breedlove 1971-5-31 19342 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH1080  Madia gracilis John Hunter Thomas 1981-5-21 20645 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1092  Madia gracilis John Hunter Thomas 1988-5-12 24455 San Mateo Jasper Ridge Biological Preserve, Stanford University; by old quarry below dam Comment
  JROH1094  Madia gracilis John Hunter Thomas 1989-5-9 24710 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM298352  Madia gracilis D. D. Keck 1932-6-1 1787 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mountains 305 Comment
  RSA176827  Madia gracilis John H. Thomas 1961-5-5 9222 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto; above Searsville Lake Comment
  UCD134287  Madia gracilis W. A. Harvey; J. M. Tucker 1948-6-29 1703 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC345125  Madia sativa Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  JROH1100  Madia sativa John H. Thomas 1971-8-7 16020 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM284995  Madia sativa Lyman Benson 1935-5-5 6543 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  RSA11166  Madia sativa C. B. Wolf 1927-6-29 561 San Mateo South of Pebble Beach near Pescadero Comment
  UC523546  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi sw Pescadero (within 100 m of ocean) Comment
  POM284997  Madia sativa Lyman Benson 1934-7-4 6103 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  RSA0036457  Madia sativa Peter Rubtzoff 1979-7-26 9300 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  SD38971  Madia sativa Delzie Demaree 1932-5-30 9191 San Mateo Comment
  UCD134343  Madia sativa Lewis S. Rose 1966-8-6 66078 San Mateo San Bruno Mountain, head of Colma Canyon. 213 Comment
  JROH4696  Maianthemum racemosum John H. Thomas 1979-4-8 19443 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM169288  Maianthemum racemosum subsp. amplexicaule C. F. Baker 1903-4-8 1917 San Mateo San Andreas Lake Comment
  CAS-BOT-BC512115  Maianthemum racemosum subsp. amplexicaule Ned Cahill 1974-5-13 251 San Mateo Chaprral near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CHSC56088  Maianthemum stellatum Steven H. Roth 1980-4-4 16 San Mateo 200 m southeast of Portola Road at the Portola Valley Library, and 5 mi southwest of the north end of Stanford Linear Accelerator. Comment
  JROH4717  Maianthemum stellatum John Hunter Thomas 1988-4-7 24383 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176415  Maianthemum stellatum John H. Thomas 1964-4-19 10326 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Area below dam. Comment
  CAS-BOT-BC514170  Maianthemum stellatum Walter & Irja Knight 1965-3-21 991 San Mateo North facing slope of Power Line Ridge Comment
  JROH4720  Maianthemum stellatum John Hunter Thomas 1991-4-25 25001 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near redwoods below dam Comment
  RSA40108  Maianthemum stellatum Lewis S. Rose 1948-3-31 48035 San Mateo Skyline Blvd., west of Tanforan 91 Comment
  UC614867  Malacothamnus fremontii Beryl O. Schreiber 1932-5-29 San Mateo near San Mateo (Spring Valley Water Company road) Comment
  CAS-BOT-BC344965  Malus pumila Peter Rubtzoff 1981-6-30 9656 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  SJSU2303  Malva arborea C. W. Sharsmith 1950-4-16 6632 San Mateo near Pescadero Point near Pescadero Comment
  SEINET7247927  Malva arborea D. R. Kaplan 1961-1 s.n. San Mateo 100 ft. East of Moss Beach Comment
  SEINET7247931  Malva arborea Bob Schmalzel 1974-1 s.n. San Mateo Growing along highway 1 200 yards from the Pacific Ocean 9 miles south of Half Moon Bay. 9 Comment
  CAS-BOT-BC206683  Malva assurgentiflora John H. Thomas 1967-5-2 12734 San Mateo Colma, near Hillside Blvd. at Cypress Lawn Cemetery Comment
  JROH2968  Malva nicaeensis John Hunter Thomas 1980-5-20 19980 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA34450  Marah fabacea M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 879 San Mateo Pacifica: San Pedro Valley County Park, at Brooks Creek Trail trailhead, near visitor center's parking lot. 74 Comment
  JROH1899  Marah fabacea Daniel Cohen 1953-4-11 25 San Mateo Jasper Ridge Biological Preserve, Stanford University; near west end of Searsville Lake Comment
  JROH1900  Marah fabacea John H. Thomas 1961-4-29 9195 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  UC129177  Marah oregana Miss Harriet A. Walker 1909-5-8 1681 San Mateo Milbrae Comment
  CAS-BOT-BC67843  Marsilea vestita Peter H. Raven 1950-6-3 2269 San Mateo San Andreas Lake 121 Comment
  JROH618  Matricaria discoidea John H. Thomas 1975-4-19 17793 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH622  Matricaria discoidea John Hunter Thomas 1981-5-8 20566 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2177  Medicago arabica John H. Thomas 1976-10-16 18421 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
  JROH2157  Medicago lupulina John H. Thomas 1967-6-1 12985 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA128987  Medicago polymorpha Peter H. Raven 1950-6-3 2203 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  CAS-BOT-BC157959  Medicago polymorpha var. brevispina Peter Rubtzoff 1977-4-16 8952 A San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Along west side of East Fork Colma Creek canyon Comment
  CAS-BOT-BC271159  Melica John H. Thomas 1965-4-29 10631 B San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC269470  Melica californica Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillside Blvd., South San Francisco Comment
  POM204770  Melica californica C. F. Baker 1903-4-6 1892 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC264249  Melica torreyana W. R. Dudley 1900-5-19 s.n. San Mateo Above La Honda, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC264252  Melica torreyana W. R. Dudley 1900-3-16 s.n. San Mateo By road up Kings Mt., Santa Cruz Mountain Peninsula Comment
  JROH5316  Melica torreyana W. Lennihan 1989-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Intersection of Road D and the trail to Rattlesnake Rock. Comment
  UCD88813  Melica torreyana A. A. Beetle 1942-6-11 3600 San Mateo Rt. 5, 15 miles south of San Bruno. Comment
  JROH2181  Melilotus albus John Hunter Thomas 1983-6-29 22695 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2797  Melissa officinalis John H. Thomas 1962-7-15 9919 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  JEPS63293  Mentha pulegium James G. Daly Ca. 1934 579 San Mateo about 1 mi n of road to La Honda on main ridge Santa Cruz Mts.; main ridge of Santa Cruz Mts. Comment
  SJSU15759  Mentha pulegium Toni Corelli 2009-9-9 428 San Mateo Half Moon Bay State Beach, along bank of Pilarcitos Creek 6 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
  JROH2807  Mentha pulegium John H. Thomas 1964-11-29 10533 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville Dam Comment
  JROH2825  Mentha pulegium John Hunter Thomas 1991-11-21 25106 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  CDA31212  Mercurialis annua J. Eide 2010-2-19 PDR# 1527850 San Mateo East Palo Alto: in residential garden. 0 Comment
  UCD142325  Mercurialis annua T. C. Fuller 1958-10-16 1444 San Mateo Pedro Valley, E of Sanchez Adobe House, S of Linda Mar Blvd. Comment
  UCD96996  Mesembryanthemum nodiflorum William Anderson 1968-7-25 s.n. San Mateo At west approach of Dumbarton Bridge on south side of road, San Jose. Comment
  CAS-BOT-BC428903  Micranthes californica Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. 1/4 mi. e. of Brisbane power lines Comment
  CAS-BOT-BC428904  Micranthes californica Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. At Devil's Arroyo. Comment
  JROH3907  Micranthes californica John Hunter Thomas 1981-4-5 20279 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  UCD68979  Microseris douglasii P. Rodriguez-Rojo 1997-3-27 San Mateo Jaspen Ridge. Serpentine annual grasslands. UTM: 10SEM4168 155 Comment
  UCD69081  Microseris douglasii P. Rodriguez-Rojo 1997-5-31 San Mateo Edgewood County Park. Serpentine annual grasslands. UTM: 10EM6347 200 Comment
  CAS-BOT-BC349015  Microseris douglasii subsp. douglasii A. D. E. Elmer 1903-5-1 4721 San Mateo Crystal Springs Lake Comment
  JROH1149  Microseris douglasii subsp. douglasii John Hunter Thomas 1988-5-3 24438 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1151  Microseris douglasii subsp. douglasii John Hunter Thomas 1992-5-5 25211 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC203060  Microseris douglasii subsp. douglasii A. D. E. Elmer May, 1903 4721 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC349035  Microseris douglasii subsp. douglasii Lewis S. Rose 1956-5-28 56079 A San Mateo Skyline Blvd w. of San Mateo 182 Comment
  RSA107061  Microseris douglasii subsp. douglasii L. S. Rose 1956-5-28 56079 San Mateo Skyline Blvd W of San Mateo. 183 Comment
  CAS-BOT-BC349145  Microseris douglasii subsp. tenella Lewis S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  UC92108  Microseris douglasii subsp. tenella T. S. Brandegee, E. L. Greene 1886-5-9 San Mateo Belmont Comment
  JEPS127932  Mimulus aurantiacus Adam C. Schneider 2013-5-17 184 San Mateo Crystal Springs Reservoir Comment
  HSC23941  Mimulus aurantiacus var. aurantiacus Mary Katherine Wicksten 1971-6-15 7 San Mateo Huddart Park, above Zwierlein Area Comment
  JROH4073  Mimulus aurantiacus var. aurantiacus John H. Thomas 1974-5-29 17405 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4076  Mimulus aurantiacus var. aurantiacus John H. Thomas 1978-5-16 s.n. 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
  RSA15208  Mimulus aurantiacus var. aurantiacus Carl B. Wolf 1926-10-19 91 San Mateo La Honda Grade, 1 mi from east [cave/cove?] Santa Cruz Mts. Comment
  POM5170A  Mimulus douglasii C. F. Baker 1903-4-12 515 San Mateo Near San Mateo Co. Comment
  UC1063162  Mimulus grandis N. K. Carlson 1935-6-29 98 San Mateo 2 mi ne Pigeon Pt.; Santa Cruz Quadrangle Comment
  POM5176  Mimulus guttatus A. D. E. Elmer 1903-04 4857 San Mateo Crystal Springs Lake. Comment
  UC567220  Mimulus guttatus H. S. Yates 1935-5-7 5217 San Mateo 2 mi s Pescadero; Santa Cruz Quadrangle 60 Comment
  UCD122715  Mimulus microphyllus R. S. Woglum 1935-5-25 996 San Mateo King City-Coalinga, along State Highway 198. Comment
  CAS-BOT-BC388837  Minuartia douglasii Le Roy Abrams 1902-5-4 2429 San Mateo Woodside Comment
  JROH1700  Minuartia douglasii John H. Thomas 1971-4-10 15752 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC388832  Minuartia douglasii Ned Cahill 1974-5-9 169 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  RSA107042  Minuartia douglasii L. S. Rose 1956-5-7 56067 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  SJSU12767  Moehringia macrophylla S. L. Jones 1986-4-6 85 San Mateo saddle betweem San Pedro Mt & Montara Mt, Pacifica 274 Comment
  CAS-BOT-BC214066  Monardella villosa Phillip C. Wheeler 1965-6-19 s.n. San Mateo Canyon east of quarry, San Bruno Mountain Comment
  CAS-BOT-BC214073  Monardella villosa George Oberlander 1949-6-25 219 San Mateo Cahill Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC214074  Monardella villosa Mrs. E. C. Sutliffe 1934-7-12 s.n. San Mateo Ocean Shore Road Comment
  CAS-BOT-BC214088  Monardella villosa R. Bacigalupi 1946-7-6 2793 San Mateo Along Edgemar Road, 1 1/2 mi. above Edgemar, northern San Mateo Co. Comment
  CHSC68000  Monardella villosa subsp. franciscana Alison Graff 1993-7-13 M- 52 San Mateo Devils Slide, in arroyos on inland side of Hwy. 1. Comment
  UC1314253  Monardella villosa subsp. franciscana C. W. O'Brien 1966-8-14 C- 66 -48 San Mateo Lake Pilarcitos 213 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
  SEINET10582385  Monardella villosa subsp. franciscana A. Graff 1993-6-14 Graff 1 San Mateo 0.2 miles down Bean Hollow Road south from its intersection with Pescadero Road, along right road cut. Windy, exposed, dry, steep, rocky cuts. Locally infrequent, with Artemisia californica, Baccharis pilularis, Mimulus aurantiacus, Eriophyllum stachaedifolium, Anaphalis margaritacea, Dudleya sp., Scrophularia californica, Eriogonum sp., grasses. Comment
  SEINET10928195  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 186 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  SEINET10961433  Monardella villosa subsp. franciscana A. Graff 1993-6-14 Graff 2 San Mateo 0.35 miles down Bean Hollow Road from its intersection with Pescadero Road, along right road cut. Windy, exposed, dry, steep, rocky cuts. Locally infrequent, with Artemisia californica, Baccharis pilularis, Mimulus aurantiacus, Eriophyllum stachaedifolium, Anaphalis margaritacea, Dudleya sp., Scrophularia californica, Eriogonum sp., grasses. Comment
  UCLA62413  Monardella villosa subsp. villosa unknown 1903-6-1 4766 San Mateo San Pedro Comment
  JROH2835  Monardella villosa subsp. villosa John H. Thomas 1963-6-23 10166 San Mateo Jasper Ridge Biological Preserve, Stanford University; near exclosure on northern slope of ridge Comment
  CAS-BOT-BC445193  Montia parvifolia A. D. E. Elmer 1903-5-1 4577 San Mateo Iverson's Place Comment
  UCSC007765  Morella californica Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC243706  Myoporum laetum Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo Above Hillside School, San Bruno Mountains Comment
  CDA5599  Myosotis discolor Wm. Davis 1959-5-15 2398 San Mateo Woodlawn Cemetery, Colma. 0 Comment
  RSA133650  Myosotis latifolia John H. Thomas 1954-4-3 3815 San Mateo La Honda Creek, about 1 mile north of La Honda. 152 Comment
  UCR121564  Myosotis latifolia George K. Helmkamp, E. A. Helmkamp 1999-6-28 4961 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  JROH1397  Myosotis latifolia John H. Thomas 1961-5-5 9207 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  CAS-BOT-BC101782  Myrica californica R. Bacigalupi 1922-3-1 s.n. San Mateo near lagoon at Arroyo de los Frijoles Comment
  RSA130858  Myrica californica R. C. Bacigalupi 1922-03 s.n. San Mateo Along coast near lagoon at Arroyo de los Frijoles. Comment
  RSA152075  Myrica californica John H. Thomas 1962-3-24 9838 San Mateo Isenberg Ranch near Langley Hill. 549 Comment
  JROH2690  Myriophyllum aquaticum John H. Thomas 1970-7-5 15675 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JROH2704  Myriophyllum aquaticum John Hunter Thomas 1992-5-14 25223 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  JROH5836  Narcissus pseudonarcissus Ann Lambrecht 2007-3-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Planted in Old Garden near Douglas Iris site off Trail 20 toward San Francisquito Creek Comment
  JROH6206  Narcissus tazetta Ann Lambrecht 2007-3-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Rd. 20 and south of the Douglas Iris Site. 85 Comment
  CAS-BOT-BC260021  Nassella lepida W. R. Dudley 1900-3-17 s.n. San Mateo By road half way up S slope of Montara Mountain Comment
  CAS-BOT-BC260026  Nassella lepida George Oberlander 1950-5-6 774 San Mateo San Francisco Watershed Reserve. San Andreas Valley Comment
  RSA128469  Nassella lepida J. T. Howell 1952-5-28 28316 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC260228  Nassella pulchra W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs Comment
  CAS-BOT-BC260231  Nassella pulchra Lewis S. Rose 1956-5-7 56071 San Mateo Skyline Boulevard W of San Mateo 182 Comment
  CAS-BOT-BC260236  Nassella pulchra John H. Thomas 1971-5-2 15869 F San Mateo Near intersection of Canada Road and Edgewater Road, about 3 miles W from Redwood City 152 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
  SEINET10496814  Navarretia atractyloides Mary Susan Taylor 1978-8-30 Taylor 1871 San Mateo Comment
  SEINET191641 Image available Navarretia heterodoxa L. S. Rose 1941-6-12 41269 San Mateo West of Redwood City, Emerald Lake 120 Comment
  SEINET3479173  Navarretia heterodoxa L. S. Rose 1941-6-12 41269 San Mateo West of Redwood City, West of Redwood City, Emerald Lake 120 Comment
  RSA95822  Navarretia heterodoxa L. S. Rose 1953-6-29 53044 San Mateo Emerald Lake, hills w. of Redwood City 91 Comment
  JROH3217  Navarretia squarrosa John Hunter Thomas 1983-7-20 22892 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC796712  Navarretia squarrosa Ira L. Wiggins 1949-7-2 12197 San Mateo Pescadero Beach Comment
  CAS-BOT-BC389710  Navarretia squarrosa L. Sigal 1969-7-1 s.n. San Mateo Belmont Canyon out of Water Dog Lake Comment
  SD38781  Navarretia squarrosa Edith A. Purer 1933-8-4 5413 San Mateo Flat area near Baden Station Comment
  JROH2736  Nemophila heterophylla John Hunter Thomas 1991-4-11 24978 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks Comment
  CAS-BOT-BC219481  Nemophila parviflora W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Moores, Pescadero Creek, Spring Valley Co. Property Comment
  JROH2744  Nemophila parviflora var. parviflora John H. Thomas 1969-4-20 14899 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2742  Nemophila parviflora var. parviflora H. R. Davis 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Zoology Club shack Comment
  CAS-BOT-BC140435  Oemleria cerasiformis Walter Knight; Irja Knight 1965-4-4 1011 San Mateo Bitter Cherry Ravine Comment
  JROH3707  Oemleria cerasiformis John H. Thomas 1968-3-17 14184 San Mateo Jasper Ridge Biological Preserve, Stanford University. Brush slope at arm of Lake Comment
  RSA195542  Oemleria cerasiformis John H. Thomas 1967-2-9 12400 San Mateo San Bruno. Near intersection of Skyline Blvd. and Berkshire Dr. Comment
  SJSU8084  Oemleria cerasiformis S. H. Casey 1969-4-17 227 San Mateo W facing slope of Colma Canyon, San Bruno Mt Comment
  UC676734  Oemleria cerasiformis Reed C. Rollins 1941-2-22 2938 San Mateo about 10 mi nw Palo Alto 152 Comment
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Apr 10 2013
  UC860379  Oemleria cerasiformis Lewis S. Rose 1937-3-20 37004 San Mateo w of Tanforan (Skyline Blvd) 182 Comment
  UC860384  Oemleria cerasiformis S. B. Show 1907-2-18 8 San Mateo San Francisquito Creek 213 Comment
  CAS-BOT-BC140444  Oemleria cerasiformis Mrs. Geo. H. C. Meyer 1915-3-1 s.n. San Mateo Easton Comment
  JROH285  Oenanthe sarmentosa John Hunter Thomas 1978-7-8 19259 San Mateo Jasper Ridge Biological Preserve, Stanford University; behind causeway Comment
  JROH287  Oenanthe sarmentosa John Hunter Thomas 1979-6-12 19589 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC2061401  Oenothera elata subsp. hookeri H. W. Johansen 1958-5-18 23 San Mateo Coast Hwy 1, S of Pescadero Comment
  RSA18444  Oenothera elata subsp. hookeri Carl B. Wolf 1927-6-29 564 San Mateo 3 miles south of San Gregorio. Comment
  RSA210940  Oenothera elata subsp. hookeri E. K. Balls 1969-9-16 12176 San Mateo Highway 1-13 mi. NW from Santa Cruz County line 6 Comment
  POM286520  Orthocarpus densiflorus Arthur L. Cohen 1935-4-21 628 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  POM319954  Orthocarpus densiflorus Barbara Shervanick 1973-4-1 800 San Mateo San Bruno Mt. first summit on Crocker Road; Mt. Range: San Bruno Mountains; Drainage Area: San Francisco Bay. Comment
  RSA401985B  Orthocarpus densiflorus Francis W. Pennell, D. D. Keck 1940-5-15 25425 San Mateo Route 101, 4 miles west of Burlingame. 152 Comment
  RSA152408  Orthocarpus faucibarbatus var. albidus R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4562 San Mateo Immediately behind Point Ano Nuevo. 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
  SEINET12119094  Osmorhiza chilensis Unknown 1932-1 9173 San Mateo Los Francos Woods Comment
Read comments
Oct 12 2021
  JROH3091  Oxalis micrantha John Rawlings 2013-4-3 1161 San Mateo Jasper Ridge Biological Preserve, Stanford University; restricted to a small area on verge of Trail 11 in chaparral 143 Comment
  UC571122  Oxalis oregana Lucile Roush March 1928 San Mateo Butano creek Santa Cruz Mtns Comment
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Sep 6 2011
  RSA240600  Oxalis oregana C. W. Tilforth, John Dourley 1973-7-19 934 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  SEINET10969325  Oxalis oregana R. D. Sage 1992-1-6 Sage 13395 -1 San Mateo Collected at purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  CAS-BOT-BC318249  Packera breweri W. R. Dudley 1893-5-27 s.n. San Mateo Near Summit Springs, Kings Mt. Comment
  JROH5338  Panicum capillare Ann Lambrecht 2006-8-23 29 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek near Dennis Martin marker. 71 Comment
  LA14373  Parapholis incurva A. Hornay; 1932-5-29 sn San Mateo San Bruno Comment
  RSA152077  Parapholis incurva John H. Thomas 1962-5-12 9859 San Mateo Franklin Point. 0 Comment
  UCD88635  Parapholis incurva Beecher Crampton 1962-6-11 6512 San Mateo Rockaway Beach, a suburb of Pacifica. Comment
  JROH4093  Parentucellia viscosa Toni Corelli 2005-4-26 286 San Mateo Jasper Ridge Biological Preserve, Stanford University; north of SLAC Corridor Road B 88 Comment
  UCR242655  Parietaria judaica A. C. Sanders 2012-11-11 40516 San Mateo SF Bay Area, Daly City near Colma, between Junipero Serra Blvd. and San Pedro Rd. on Washington St. 56 Comment
  JROH5341  Paspalum dilatatum John Rawlings 2010-8-19 1061 San Mateo Jasper Ridge Biological Preserve, Stanford University. Adjacent to caretakers residence. 106 Comment
  JROH1405  Pectocarya pusilla Toni Corelli 2004-4-18 270 San Mateo Jasper Ridge Biological Preserve, Stanford University. On trail 9 182 Comment
  JROH4096  Pedicularis densiflora James Newman 1951-4-21 44 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake, above lake 91 Comment
  JROH4117  Pedicularis densiflora John Hunter Thomas 1981-5-25 20631 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM15581  Pedicularis densiflora A. D. E. Elmer 1903-05 4497 San Mateo Woodside. Comment
  SD27762  Pedicularis densiflora Carl B. Wolf 1927-3-2 235 San Mateo Searsville Lake 121 Comment
  RSA401968B  Pedicularis densiflora A. C. Life 1924-2-22 14599 San Mateo Kings Mt. Redwood Park. Huckleberry trail. Comment
  SBBG34023  Pedicularis densiflora L. S. Rose 1969-3-27 San Mateo 2 mi NW of Woodside 182 Comment
  SEINET12270442  Pedicularis densiflora J. H. Thomas 1959-1 7663 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto 152 Comment
  UCSB17558  Pedicularis densiflora Schulte, John 1963-4-14 San Mateo Top of Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CDA4422  Pelargonium vitifolium T. C. Fuller 1960-10-5 5198 San Mateo Along old highway right-of-way, Highway 1, 2.5 miles south of Pebble Beach State Park. 0 Comment
  CAS-BOT-BC207025  Pelargonium vitifolium Carl B. Wolf 1929-5-10 3704 San Mateo Pigeon Pt. S. of Pescadero 30 Comment
  CAS-BOT-BC389690  Pellaea andromedifolia 1980-3-15 s.n. San Mateo Crystal Springs Rd. Comment
  JROH5818  Pennisetum setaceum John Rawlings 2016-10-8 1949 San Mateo Sand Hill Rd. near the SLAC fence-line opposite the entrance to the Horse Park at Woodside, San Mateo Co. 118 Comment
  UC1495039  Pentachaeta bellidiflora Susan Sommers and Toni Corelli 1983-4-2 San Mateo w of middle of bend in Hwy 280 s Edgewood Road overcrossing; Woodside Quad., San Francisco Water District property 121 Comment
  JROH109  Pentagramma triangularis subsp. triangularis John H. Thomas 1968-3-17 14194 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH315  Perideridia kelloggii John Hunter Thomas 1991-8-4 25077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH317  Perideridia kelloggii John Hunter Thomas 1992-7-24 25395 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET192395  Perideridia lemmonii Ira Wiggins, Roxana Ferris 1939-8-2 9295 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC413765  Persicaria lapathifolia W. R. Dudley 1897-10-11 s.n. San Mateo Santa Cruz Peninsula. Toward Pilar Pt. Comment
  JROH5974  Persicaria maculosa John Rawlings, Ann Lambrecht 2017-9-12 2294 San Mateo Jasper Ridge Biological Preserve, Stanford University; confluence Bear Creek, Corte Madera Creek, and San Francisquito Creek 71 Comment
  JROH1165  Petasites frigidus var. palmatus Paul Heiple 2007-3-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; NW of Leonard's Bridge along Trail 13 Comment
  RSA144781  Phacelia californica John H. Thomas 1958-3-19 7045 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  RSA342247  Phacelia californica Robert F. Thorne, P. C. Everett 1963-6-9 32213 San Mateo On top of San Bruno Mountain, near TV tower. 335 Comment
  OBI48680  Phacelia distans Lewis S. Rose 1939-4-13 39065 San Mateo San Mateo Cyn near Crystal Springs lake 61 Comment
  JEPS3114  Phacelia divaricata James G. Daly 1934-1 156 San Mateo on ridge s road to La Honda; Santa Cruz Mountains Comment
  POM128436  Phacelia divaricata L. R. Abrams 1902-4-13 2324 San Mateo Crystal Spring. Comment
  JROH5363  Phalaris aquatica John Hunter Thomas 1982-7-2 21058 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  UCR123138  Phalaris minor George K. Helmkamp, E. A. Helmkamp 2001-6-2 6773 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
  JROH5384  Phleum pratense John Rawlings 2009-6-3 1024 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek 82 Comment
  JROH2768  Pholistoma auritum var. auritum John Hunter Thomas 1981-5-5 20540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4294  Phoradendron leucarpum subsp. tomentosum John Hunter Thomas 1979-1-31 19348 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  SD49975  Phoradendron leucarpum subsp. tomentosum John H. Thomas 1959-8-22 8080 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto 152 Comment
  JROH4289  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  CAS-BOT-BC452001  Phyllospadix scouleri Robert Setzer 1969-7-3 3311 San Mateo Montara Beach Comment
  CAS-BOT-BC251003  Phyllostachys bambusoides Elizabeth McClintock; Paul Reeberg 1989-3-14 s.n. San Mateo San Bruno Mountains. Near base of Old Quarry Road, Colma Canyon 121 Comment
  RSA681424  Physocarpus capitatus Annuschka Deb 1989-6-13 218 San Mateo Woodside, Yerba Buena Nursery Demonstration Garden. Comment
  SEINET3418037 Image available Pickeringia montana Lewis S. Rose 1933-6-9 33224 San Mateo Belmont Comment
  RSA19297  Pickeringia montana var. montana L. S. Rose 1937-5-23 37321 San Mateo Belmont 91 Comment
  JROH4767  Piperia elegans subsp. elegans Linda Knox 1969-8-10 1 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18516  Piperia transversa Carl B. Wolf 1927-7-14 603 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC389680  Piperia unalascensis Mary Wicksten 1970-6-25 51 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC228027  Plagiobothrys Mary Nimitz 1952-5-10 77 San Mateo Top of Jasper Ridge above Searsville Lake Comment
  CAS-BOT-BC228121  Plagiobothrys chorisianus David D. Keck 1938-5-30 4728 San Mateo Pescadero, on bluffs overlooking ocean Comment
  CAS-BOT-BC228126  Plagiobothrys chorisianus Peter H. Raven 1950-4-16 1816 San Mateo Between Geneva Avenue (San Francisco County) and San Bruno Mountains 182 Comment
  CAS-BOT-BC228138  Plagiobothrys chorisianus Roxana S. Ferris 1920-4-26 1979 San Mateo The Santa Cruz Mountain Peninsula. Lagoon at head of New Years Point 15 Comment
  RSA128816  Plagiobothrys chorisianus Roxana S. Ferris 1920-4-23 s.n. San Mateo Santa Cruz Mountain peninsula, on abandoned road above north fork of Peters Creek 640 Comment
  CAS-BOT-BC228153  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1898-4-24 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near El Corte Madera Creek Comment
  CAS-BOT-BC228166  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-17 s.n. San Mateo Near Pebble Beach, Pescadero Comment
  SJSU15770  Plagiobothrys chorisianus var. chorisianus Toni Corelli 2010-6-1 631 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 23 Comment
  CAS-BOT-BC228174  Plagiobothrys chorisianus var. hickmanii W. R. Dudley 1900-3-16 s.n. San Mateo The Santa Cruz Mountain Peninsula. Along road between King's [Kings] Mountain and Half Moon Bay Comment
  JROH1410  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1969-4-12 14890 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
  JROH1419  Plagiobothrys chorisianus var. hickmanii John Hunter Thomas 1983-5-3 21878 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SDSU5437  Plagiobothrys chorisianus var. hickmanii D. F. Howe 1967-4-13 4342 San Mateo Pebble Beach. Comment
  UCD120893  Plagiobothrys nothofulvus R. E. Dengler 1960-4-12 20 San Mateo Jasper Ridge, Stanford Biological Reserve. 121 Comment
  SD129730  Plagiobothrys reticulatus var. reticulatus Roy E. Buck, James A. West 1985-4-29 527 San Mateo Cascade Ranch Comment
  SEINET8665562  Plantago coronopus K. Thorne, J. Chandler 1986-7-25 4924 San Mateo Half Moon Bay, 2 mi S of Moss Beach at Dune Beach. Sand Dunes and beach area adjacent to the Pacific Ocean. Comment
  CHSC24897  Plantago erecta B. A. Rosene 1976-4-18 1 San Mateo Ca. 2.4 km nw of entrance to California State Game Refuge. 182 Comment
  JROH3125  Plantago erecta John Hunter Thomas 1991-5-2 25017 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI58721  Plantago erecta Lewis S. Rose 1966-5-2 66033 San Mateo Emerald lake, W of Redwood City 91 Comment
  RSA153467  Plantago erecta John H. Thomas 1961-5-7 9250 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UCD124449  Plantago erecta Robert F. Thorne; P. Everett 1963-6-9 32220 San Mateo Kamchatka Point near TV tower on San Bruno Mt. 335 Comment
  UCD124478  Plantago erecta Lewis S. Rose 1965-5-3 65056 San Mateo San Bruno Mountain, north end. 182 Comment
  UCSB17043  Plantago erecta Schulte, John 1963-4-14 San Mateo Jasper Ridge; 3 miles SW of Stanford University; between Santa Clara Valley and Santa Cruz Mountains 152 Comment
  RSA176597  Plantago hirtella var. galeottiana John H. Thomas 1964-6-19 10433 San Mateo Near Pigeon Pt. Lighthouse. Comment
  UC2049867  Plantago lanceolata H. W. Johansen 1955-4-23 81 San Mateo Crystal Springs Road, 2 miles W of San Mateo Comment
  UC1192027  Plantago major Malcolm A. Nobs and S. Galen Smith 1949-8-26 1584 San Mateo about 1 mi s Half Moon Bay Comment
  UCD164599  Plantago major Peter Rubtzoff; Roman Gankin 1975-9-11 8371 San Mateo San Bruno Mountains. Pond NW of and across old Guadalupe Road from 'Saddle' area (which is located on N side of Guadalupe Canyon Parkway, W of Radio Road junction). Comment
  JEPS7154  Plantago maritima var. californica James G. Daly 1934-1 478 San Mateo mouth of San Gregorio Creek San Gregorio Creek Comment
  UCD124564  Plantago subnuda G. Thomas Robbins 1953-8-29 3616 San Mateo Along State Highway 1, 1.5 - 2 miles south of San Francisco City and County line. Comment
  SEINET7097922  Platanthera dilatata var. leucostachys A. G. Vestal 1937-1 San Mateo Comment
  RSA18360  Platanthera leucostachys Carl B. Wolf 1929-5-25 3728 San Mateo Pebble Beach, S of Pescadero. Comment
  CAS-BOT-BC92013  Platystemon californicus A. D. E. Elmer 1903-6-1 4853 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC92011  Platystemon californicus H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Comment
  UC416762  Plectritis brachystemon J. Burtt Davy 1895-4-20 1023 San Mateo Millbrae Comment
  UC131908  Plectritis brachystemon Alice Eastwood 1901-5-19 San Mateo Blenheim Comment
  JROH4247  Plectritis ciliosa L. Roush & G. Kimber 1918-4-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4252  Plectritis macrocera John H. Thomas 1977-4-29 18572 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC255563  Poa annua W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Mountain Peninsula. By road from Pescadero to San Gregorio Comment
  JROH5399  Poa annua John H. Thomas 1975-4-3 17702 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC254545  Poa douglasii Paul F. Covel No date on label 1533 San Mateo Moss Beach Comment
  JROH5417  Poa pratensis subsp. pratensis John Hunter Thomas 1982-6-7 21028 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5420  Poa pratensis subsp. pratensis John Rawlings 2012-5-8 1108 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville store marker sign west edge of Road L 107 Comment
  SEINET10855247  Poa scabrella LeRoy R. Abrams Abrams 1162 San Mateo Menlo Park-reservoir. Comment
  RSA135779  Poa secunda W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula; Near Summit Springs, Kings Mt. Comment
  CAS-BOT-BC243111  Poa secunda subsp. secunda Holm 1903-4-20 1920 San Mateo San Andreas Lake, about hill tops Comment
  CAS-BOT-BC173841  Poa trivialis Peter Rubtzoff 1977-6-7 9030 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. 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
  JEPS101813  Poa unilateralis Dean W. Taylor 2000-4-25 17440 San Mateo along dirt road 1 mi W of North Peak, Montara Mountain 411 Comment
  CAS-BOT-BC244248  Poa unilateralis W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Montara Mountain Comment
  JROH2854  Pogogyne serpylloides John H. Thomas 1961-4-29 9191 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS85226  Pogogyne serpylloides Roy E. Buck and James A. West 1985-6-3 532 San Mateo Cascade Ranch. On old ranch road S of Whitehouse Canyon Rd. Just E of minor gulch draining SSE into small lake ca. 2.1 air km NE of Whitehouse Canyon Rd. CA Hwy. 1 junction 3.2 air km ENE of Franklin Point. 97 Comment
  UC23972  Polemonium carneum J. Burtt Davy 1895-4-20 1040 San Mateo Pilarcitos Comment
  UC23973  Polemonium carneum J. Burtt Davy 1895-4-20 1040 San Mateo Pilarcitos Comment
  JROH3220  Polygala californica John Rawlings 2007-5-30 1013 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vicinity of an abandoned camper shell near a small drainage west of the switchback zone of the Escobar/Webb Ranch horse trail. 100 Comment
  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
  CAS-BOT-BC413757  Polygonum argyrocoleon John Thomas Howell 1953-6-3 29057 San Mateo Bayshore Highway, 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
  CAS-BOT-BC109246  Polygonum paronychia Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountains. Colma Canyon. Comment
  UC1191256  Polygonum punctatum Malcolm A. Nobs and S. Galen Smith 1949-8-25 1560 San Mateo Sharp Park; marshes Comment
  CAS-BOT-BC76905  Polypodium californicum Lewis S. Rose 1964-2-6 64001 San Mateo Kings Mountain 609 Comment
  RSA169347  Polypodium californicum L. S. Rose 1964-2-6 64001 San Mateo Kings Mountain 610 Comment
  UC766795  Polypodium calirhiza R. F. Hoover 1941-2-12 4759 San Mateo La Honda Creek above La Honda Comment
  JROH5430  Polypogon interruptus John H. Thomas 1962-7-15 9921 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below dam. 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-BC237349  Polypogon monspeliensis L. R. Abrams; I. L. Wiggins 1939-6-3 432 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC237352  Polypogon monspeliensis John H. Thomas 1964-6-19 10422 San Mateo Ano Nuevo Island, about 0.5 mile off shore about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC237357  Polypogon monspeliensis David D. Keck 1934-7-7 2938 San Mateo S of the mouth of Tunitas Creek Comment
  JROH5439  Polypogon monspeliensis H. J. Dengler 1961-7-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek not far from where it trends east from Jasper Ridge. Comment
  HSC10835  Polypogon monspeliensis B. Francis 1964-5-5 47 San Mateo 5 miles N of San Francisco International Airport. Comment
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Jul 2 2009
  JROH4821  Polypogon viridis W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By S.F. Creek, just above causeway -- left side looking up from causeway. 81 Comment
  CAS-BOT-BC6609  Polystichum dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Near bridge, Peter's Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC76644  Polystichum munitum Peter Rubtzoff 1987-11-27 9889 San Mateo San Bruno Mountains - saddle area on north side of Guadelupe Canyon Parkway west of Radio Road junction, Comment
  CAS-BOT-BC105566  Populus trichocarpa W. R. Dudley 1894-3-26 s.n. San Mateo Creek by Pascadero bridge, Pescadero - Santa Cruz Peninsula Comment
  JROH3842  Populus trichocarpa John H. Thomas 1976-4-30 18099 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Dam. Comment
  JROH3359  Portulaca oleracea John H. Thomas 1978-9-24 19341 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5510  Potamogeton crispus Alan Grundman 1976-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH5844  Potamogeton crispus P. Heiple, A. Lambrecht 2008-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  SEINET10501698  Potamogeton filiformis var. macounii Mary Susan Taylor 1978-8-30 Taylor 1875 San Mateo Comment
  UC652560  Potamogeton gramineus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9292 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC257679  Potamogeton illinoensis Peter Rubtzoff 1965-10-19 5664 San Mateo Pilarcitos Lake. Comment
  SEINET9629541 Image available Potamogeton illinoensis Ira L. Wiggins, Roxana S. Ferris 1939-8-2 9292 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
  UC1191228  Potamogeton pectinatus Herbert L. Mason, Verne Grant 1946-8-28 13091 San Mateo about 3 mi s of Daly City Road (near Highway 5) Comment
  CAS-BOT-BC454008  Potamogeton pectinatus Ira L. Wiggins 1935-6-29 8051 San Mateo Pescadero Creek, about 1 mile west of Pescadero Comment
  CAS-BOT-BC141926  Potentilla anserina subsp. pacifica Anne Constant 1955-5-28 196 San Mateo Top of bluff at Pescadero Beach 7 Comment
  CAS-BOT-BC141938  Potentilla anserina subsp. pacifica Adele Lewis Grant 1917-5-6 941 San Mateo Pebble Beach at Pescadero Comment
  CAS-BOT-BC143305  Potentilla hickmanii Mrs. E. C. Sutliffe 1933-5-6 s.n. San Mateo Above Moss Beach Comment
  JROH4669  Prosartes hookeri John H. Thomas 1967-4-28 12728 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4673  Prosartes hookeri John H. Thomas 1973-5-5 16761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU9997  Prosartes smithii R. L. Roney 1974-4-27 San Mateo N side of La Honda Creek 457 Comment
  SD38546  Prunella vulgaris Edith A. Purer 1932-7-18 4020 San Mateo Near Pigeon Point. Comment
  CAS-BOT-BC166660  Prunella vulgaris subsp. lanceolata Peter Rubtzoff 1975-10-24 8430 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In East Fork Colma Creek canyon area. San Bruno Mountains. Comment
  UC136492  Prunus emarginata C. F. Baker 1902-5-1 691 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC389746  Prunus ilicifolia M. Danielson 1966-10-1 s.n. San Mateo On old road above and south of Crystal Springs Rd. Comment
  JROH3747  Prunus ilicifolia subsp. ilicifolia John Hunter Thomas 1981-5-5 20545 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC356871  Pseudognaphalium californicum D. E. Breedlove 1974-5-13 36234 San Mateo Slopes San Pedro Valley Park, Pacifica 152 Comment
  JROH762  Pseudognaphalium californicum John H. Thomas 1976-5-26 18149 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH771  Pseudognaphalium californicum John Hunter Thomas 1986-5-6 24002 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC356856  Pseudognaphalium californicum George Oberlander 1949-5-13 152 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC356863  Pseudognaphalium californicum Elizabeth McClintock 1972-5-10 s.n. San Mateo San Bruno Mountain. Slope above parking lot, summit of mountain Comment
  CAS-BOT-BC356864  Pseudognaphalium californicum Philip C. Wheeler 1965-5-8 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  HSC23984  Pseudognaphalium californicum Mary Katherine Wicksten 1971-6-17 54 San Mateo Huddart Park on Chickadee Trail Comment
  CAS-BOT-BC357125  Pseudognaphalium luteoalbum Fred Hemphill 1973-5-6 766 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  POM358830  Pseudognaphalium luteoalbum E. A. Purer 1933-8-13 5427 San Mateo Belmont Comment
  UCD166153  Pseudognaphalium luteoalbum Jack Major; M. Forde and S. Bamberg 1962-4-3 737 San Mateo Above Coastways Ranch on Finney Creek. (Exact location unknown. Coordinates estimated by label maker). Comment
  HSC5701  Pseudognaphalium luteoalbum R. E. Jones 1966-4-4 37 San Mateo Ano Nuevo Beach Comment
  JROH776  Pseudognaphalium luteoalbum John H. Thomas 1974-10-29 17649 San Mateo Jasper Ridge Biological Preserve, Stanford University; small peninsula created by drainage channel cut to accomodate water from Corte Madera Cr. Comment
  CAS-BOT-BC357509  Pseudognaphalium ramosissimum John H. Thomas 1976-10-7 18391 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south of Pescadero 30 Comment
  CAS-BOT-BC357513  Pseudognaphalium ramosissimum J. H. Thomas 1958-8-1 7376 San Mateo Coastal bluffs just north of mouth of San Gregorio Creek 30 Comment
  JEPS33995  Pseudognaphalium ramosissimum James G. Daly 407 San Mateo Upper Mindego canyon Santa Cruz Mts., San Gregorio watershed, Upper Mindego canyo 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-BC361566  Pseudognaphalium stramineum Phillip Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. Cow Palace area Comment
  JROH130  Pseudotsuga menziesii var. menziesii John Hunter Thomas 1986-4-22 23971 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1187  Psilocarphus tenellus John Hunter Thomas 1980-5-8 19948 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC362018  Psilocarphus tenellus George Oberlander No date on label 918 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC362026  Psilocarphus tenellus Ned Cahill 1975-2-21 408 San Mateo Chaparral near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC421317  Pterostegia drymarioides John H. Thomas 1965-4-29 10625 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  RSA181251  Pyracantha koidzumii John H. Thomas 1963-10-4 10268 San Mateo Along Bayshore Freeway about 1/2 mile SE of its intersection with HIllsdale Blvd. Comment
  JROH2532  Quercus John H. Thomas 1974-4-24 17183 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC104279  Quercus X morehus James B. Roof 1965-4-25 s.n. San Mateo Sant Bruno Mountain, On top of ridge, N side of road, toward Brisbane power lines Comment
  CAS-BOT-BC104281  Quercus X morehus G. Ward 1941-4-12 s.n. San Mateo Sant Bruno Hills Comment
  JROH2534  Quercus X morehus W. K. Fisher 1898-3-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
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Oct 31 2016
  JROH2462  Quercus agrifolia var. agrifolia John H. Thomas 1974-6-30 17461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2464  Quercus agrifolia var. agrifolia John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5868  Quercus agrifolia var. agrifolia David Y. Hollinger 1980-12-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC62340  Quercus chrysolepis LeRoy Abrams 1906-10-7 s.n. San Mateo Portola, Santa Cruz Mtns. Comment
  JROH5804  Quercus douglasii John Rawlings, Bill Gomez 2016-7-28 1911 B San Mateo Jasper Ridge Biological Preserve, Stanford University; north side Rd F in blue oak woodland west of serpentine prairie 182 Comment
  RSA63117  Quercus durata L. S. Rose 1950-5-20 50136 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  SJSU1086  Quercus durata C. W. Sharsmith 1951-4-6 6638 San Mateo Woodside Hills, 3 mi E of Woodside 182 Comment
  UC1135557  Quercus durata G. E. Sindel 1935-8-27 338 San Mateo 3.37 mi wnw Woodside; Santa Cruz Quad. 152 Comment
  JROH2486  Quercus durata var. durata John H. Thomas 1974-6-30 17462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105389  Quercus kelloggii W. R. Dudley 1893-4-1 s.n. San Mateo Near Searsville Comment
  CAS-BOT-BC105399  Quercus kelloggii J. I. McMurphy 1904-3-7 48 San Mateo Santa Cruz Mountain Peninsula. Foothills near Woodside Comment
  CAS-BOT-BC105400  Quercus kelloggii James McMurphy 1909-3-20 s.n. San Mateo Woodside Comment
  CAS-BOT-BC62891  Quercus lobata W. R. Dudley 1894-11-2 s.n. San Mateo Woodside road Comment
  CAS-BOT-BC62893  Quercus lobata Ned Cahill 1974-4-23 159 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH2524  Quercus lobata John Hunter Thomas 1979-9-9 19733 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC134777  Quercus wislizeni Arthur Menzies 1962-2-25 s.n. San Mateo San Bruno Mt. Comment
  UC762353  Quercus wislizeni Robert F. Hoover 1941-2-12 4757 San Mateo above La Honda; La Honda Creek 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
  SEINET3816595 Image available Ranunculus bloomeri Lewis S. Rose 1934-3-11 34051 San Mateo Visitacion Valley. Comment
  SJSU2306  Ranunculus californicus C. W. Sharsmith 1950-4-16 6635 San Mateo near Pescadero Point near Pescadero Comment
  UC9411  Ranunculus californicus J. Burtt Davy 1895-4-20 1014 San Mateo Millbrae Comment
  POM268421  Ranunculus californicus Lyman Benson 1930-3-20 1953 San Mateo S San Francisco. 91 Comment
  RSA27481  Ranunculus californicus I. L. Wiggins 1941-4-17 9719 San Mateo Roadside near jct of road to Calfornia Sanitarium with Woodside half Moon Bay road Comment
  RSA399415  Ranunculus californicus J. Doty 1969-3-26 600 San Mateo 100 yards E of jct Hwy 35 and 92, near summit of Caost Range, San Francisco Peninsula. Comment
  SD80176  Ranunculus californicus R. S. Woglum 1935-5-25 1156 San Mateo San Francisco area, Skyline Drive Comment
  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-BC378534  Ranunculus californicus var. californicus J. H. Thomas 1949-3-29 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC378545  Ranunculus californicus var. californicus Elizabeth McClintock; David Schooly; Marcus 1975-4-13 s.n. San Mateo grassy slope above Hillside Blvd., South San Francisco Comment
  RSA132486  Ranunculus californicus var. cuneatus John H. Thomas 1950-3-19 1307 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
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Nov 16 2021
  RSA0005416  Ranunculus californicus var. cuneatus Lyman Benson 1931-3-3 2618 San Mateo Moss Beach. 15 Comment
  JROH3478  Ranunculus hebecarpus John H. Thomas 1971-4-25 15788 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12100640  Ranunculus orthorhynchus L. S. Rose 1937-1 37241 San Mateo Brisbane 6 Comment
  POM148951  Ranunculus orthorhynchus var. bloomeri A. D. E. Elmer 1903-06 4665 San Mateo San Pedro. Comment
  UCD115167  Raphanus sativus L. Angst 1917-4-21 14 San Mateo south of San Francisco. Comment
  RSA222805  Rhamnus californica S. S. Berry 1909-4-3 s.n. San Mateo Bear Creek Canyon Grade 259 Comment
  JROH3560  Rhamnus crocea John H. Thomas 1963-3-20 10029 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Westridge end of ridge 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
  POM243723  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1927-12-31 1472 San Mateo 1/2 way up Kings Mt. Comment
  UC1121784  Rhamnus tomentella subsp. tomentella C. M. Belshaw 1935-1-25 1459 San Mateo 2.8 mi w Woodside; Santa Cruz Quad. 457 Comment
  CAS-BOT-BC437978  Ribes Eric Walther 1920-5-30 s.n. San Mateo Woodside Comment
  JEPS49330  Ribes californicum W. L. Jepson 1922-3-19 9540 San Mateo Lake San Andreas Comment
  POM222802  Ribes californicum S. S. Berry 1909-2-27 s.n. San Mateo Roadside near Adalanta Villa. 46 Comment
  JROH2638  Ribes californicum var. californicum Duncan M. Porter 1961-2-8 742 San Mateo Jasper Ridge Biological Preserve, Stanford University. N face of sandstone cliff at N end of ridge above San Francisquito Creek. Comment
  JROH2641  Ribes californicum var. californicum John H. Thomas 1968-3-17 14178 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD121787  Ribes divaricatum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  SEINET6205023  Ribes divaricatum L. S. Rose 1965-1 65008 San Mateo Searsville Lake. Comment
  SBBG33963  Ribes divaricatum var. pubiflorum L. S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC173080  Ribes divaricatum var. pubiflorum E. H. Richardson 1906-2-1 s.n. San Mateo Page Mill Road, Black Mt. 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
  CAS-BOT-BC173466  Ribes malvaceum A. D. E. Elmer 1903-3-1 4750 San Mateo Portola Comment
  CAS-BOT-BC173474  Ribes malvaceum A. D. E. Elmer 1903-3-1 4750 San Mateo Portola Comment
  RSA0021679  Ribes malvaceum L. S. Rose 1933-3-2 33006 San Mateo Belmont. Comment
  CAS-BOT-BC212811  Ribes menziesii David D. Keck 1932-3-6 1397 San Mateo Near La Honda, Santa Cruz Mts. 200 Comment
  CAS-BOT-BC212816  Ribes menziesii Roxana S. Ferris 1920-4-23 1950 San Mateo Strawberry Bend, El Corte de Madera Creek 121 Comment
  CAS-BOT-BC212828  Ribes menziesii Peter H. Raven 1952-4-6 3984 San Mateo 1 mile s. of Sharp Park Comment
  CAS-BOT-BC212840  Ribes menziesii Ira L. Wiggins 1929-3-23 3374 San Mateo Road to Mud Lake, near Stanford University Comment
  UC11613  Ribes menziesii J. Burtt Davy 1895-4-21 1059 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC212836  Ribes menziesii V. F. Hesse 1955-10-10 1716 San Mateo China grade road, 2.3 miles from Butano-Gazos Creek Road 152 Comment
  RSA0021788  Ribes menziesii D. D. Keck 1932-3-6 1397 San Mateo Near La Honda, Santa Cruz Mountains. 200 Comment
  SEINET10482931  Ribes menziesii Mary Susan Taylor 1978-8-30 Taylor 1855 San Mateo Comment
  JROH2666  Ribes menziesii var. menziesii John H. Thomas 1960-3-1 8538 San Mateo Jasper Ridge Biological Preserve, Stanford University. In shaded areas near San Francisquito Creek. Comment
  CAS-BOT-BC144606  Ribes sanguineum var. glutinosum Elmer I. Applegate 1895-3-3 198 San Mateo San Gregorio Creek below La Honda Comment
  JROH2682  Ribes sanguineum var. glutinosum John Hunter Thomas 1983-4-21 21645 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along causeway. Comment
  UC1127602  Ribes sanguineum var. glutinosum G. E. Sindel 1935-8-13 328 San Mateo San Gregorio Creek Santa Cruz Quadrangle Comment
  RSA0019110  Ribes sanguineum var. glutinosum Lyman Benson 1929-3-5 976 San Mateo King s Mountain. Comment
  RSA0019113  Ribes sanguineum var. glutinosum L. R. Abrams, W. W. Eggleston 1924-3-23 19562 San Mateo Coast Range, near Palo Alto. 60 Comment
  SEINET12220348  Ribes sanguineum var. glutinosum Unknown 1932-1 8919 San Mateo La Honda Road to Sky Line Drive Comment
  UC1127452  Ribes victoris R. C. Wilson 1935-7-17 242 San Mateo 2 mi se Pescadero; Santa Cruz Quadrangle Comment
  CAS-BOT-BC363086  Rigiopappus leptocladus Ira L. Wiggins 1949-4-23 12050 San Mateo Hillsides above Emerald Lake, back of Redwood City Comment
  UC75100  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside Comment
  JROH2208  Robinia pseudoacacia Ann Lambrecht 2007-9-5 32 San Mateo Jasper Ridge Biological Preserve, Stanford University; W bank of San Francisquito Creek, just downstream from confluence with Bear Creek Comment
  POM65453  Romanzoffia californica A. D. E. Elmer 1903-05 4482 San Mateo Towards San Mateo; Crystal Springs Lake. Comment
  CDA9435  Romanzoffia californica D. G. Kelch 2002-5-13 s.n. San Mateo Pilarcitos Canyon, SF watershed. 0 Comment
  CAS-BOT-BC147625  Rosa californica Ned Cahill 1974-6-21 333 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC152829  Rubus parviflorus W. R. Dudley 1894-12-13 s.n. San Mateo La Honda Road - Santa Cruz Peninsula Comment
  CAS-BOT-BC152833  Rubus parviflorus Josephine D. Randall 1907-7-28 345 San Mateo Iverson's near Peter's Creek - Santa Cruz Peninsula Comment
  CAS-BOT-BC152869  Rubus parviflorus Walter Knight; Irja Knight 1964-5-30 602 San Mateo Colma Creek - San Bruno Mountain Comment
  JROH3772  Rubus parviflorus John H. Thomas 1973-5-5 16763 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JEPS30401  Rubus spectabilis James B. Roof, Irja Knight 1963-4-24 San Mateo northwestern end San Bruno Mountain (Colma Canyon); Daly City, nw end of San Bruno Mountain, Colma Canyon Comment
  CAS-BOT-BC157075  Rubus ursinus J. Clausen 1948-5-9 2081 San Mateo Tunitas Creek road 121 Comment
  CAS-BOT-BC157106  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  POM204330  Rubus ursinus I. L. Wiggins 1929-7-4 3775 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  RSA101000  Rubus ursinus G. Oberlander 1949-4-9 25 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  RSA26246  Rubus ursinus Alice Eastwood, John T. Howell 1938-6-26 6050 San Mateo Montara Mtn above Point San Pedro Comment
  UC136500  Rubus ursinus C. F. Baker 1902-1-15 246 San Mateo West side King's Mountain Comment
  RSA89757  Rubus ursinus Philip A. Munz 1954-8-4 19913 San Mateo Montara. Comment
  UCSB18180  Rubus ursinus Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough, California 91 Comment
  CHSC39822  Rumex acetosella Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  CAS-BOT-BC422085  Rumex acetosella Ira L. Wiggins 1925-4-1 1674 San Mateo First bridge across small creek on Kings Mountain Road above Woodside. Comment
  JROH3301  Rumex conglomeratus John Hunter Thomas 1982-6-7 21030 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5665  Rumex conglomeratus John Rawlings 2014-8-12 1273 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry San Francisquito Creek, between low flow crossing and downstream serpentine outcrop 79 Comment
  JROH3298  Rumex conglomeratus John H. Thomas 1974-6-27 17452 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the low flow crossing below Searsville Dam. Comment
  CAS-BOT-BC433358  Rumex crispus Ned Cahill 1974-6-21 349 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC433542  Rumex fueginus George Oberlander 1950-7-15 1106 San Mateo San Francisco Watershed Reserve. About San Andreas Lake 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
  CAS-BOT-BC433821  Rumex pulcher George Oberlander 1949-7-30 342 San Mateo San Francisco Watershed Reserve. Upper Crystal Springs Lake. Comment
  CAS-BOT-BC433997  Rumex salicifolius Josephine D. Randall 1907-7-23 291 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  JROH3313  Rumex salicifolius John Hunter Thomas 1977-6-16 18787 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2212  Rupertia physodes John H. Thomas 1971-5-30 15955 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2214  Rupertia physodes John H. Thomas 1974-6-27 17455 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing below Searsville Dam Comment
  SEINET12155887  Rupertia physodes Unknown 1932-1 9168 San Mateo Los Francos Woods Comment
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Nov 1 2021
  UC279588  Ruppia maritima W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  RSA800143  Ruta chalepensis Peter Rubtzoff 1988-4-12 9901 San Mateo San Bruno Mountain, on east side of Summit Road (former Radio Road), ca. 1 mi from San Bruno Mtn. Park entrance. Comment
  JROH1715  Sagina apetala Oz Garton 1968-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1136464  Salicornia virginica G. E. Sindel 1935-7-25 303 San Mateo Mouth of Pescadero Creek Santa Cruz Quad. 0 Comment
  RSA119072  Salix coulteri L. S. Rose 1958-3-19 58011 San Mateo Princeton. 6 Comment
  JROH3857  Salix laevigata David D. Keck 1932-3-6 1392 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH3881  Salix lasiandra var. lasiandra Toni Corelli 2002-11-18 252 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 21, along eastern side of lake trail at west end of spillway 106 Comment
  UCD111574  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-8 65002 San Mateo Searsville Lake. 121 Comment
  CAS-BOT-BC107139  Salix lasiolepis W. R. Dudley 1904-3-7 68 San Mateo Bear Gulch, Santa Cruz Mt. - Santa Cruz Peninsula 152 Comment
  POM167483  Salix lasiolepis A. D. E. Elmer 1903-03 4875 San Mateo Searsville Lake. Comment
  POM216549  Salix lasiolepis D. D. Keck 1932-1-24 1356 San Mateo Portola. 150 Comment
  RSA178599  Salix lasiolepis L. R. Abrams 1915-3-13 5162 San Mateo Near jct of San Francisquito and Los Trancos creeks. About 2 miles from Stanford University. Comment
  UC481897  Salix lasiolepis C. R. Ball and G. W. Hendry 1931-2-22 15 San Mateo in arroyo near San Gregorio Creek (100 m from ocean); San Gregorio Comment
  UCR279843  Salix lasiolepis Peter Rubtzoff 1976-3-14 8445 San Mateo San Francisco Bay Region, San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; upper part of East Fork Colma Creek Canyon 220 Comment
  CAS-BOT-BC108253  Salix lasiolepis var. bigelovii Alice Eastwood 1920-3-15 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC108254  Salix lasiolepis var. bigelovii Roxana S. Ferris 1921-4-7 2145 San Mateo Baden Station - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC108261  Salix lasiolepis var. bigelovii C. R. Ball; G. W. Hendry 1931-2-22 15 San Mateo In arroyo near San Gregoio Creek, 100 m. from ocean. Near sea level. Comment
  CAS-BOT-BC124488  Salix lasiolepis var. lasiolepis Lewis S. Rose 1965-3-8 65004 San Mateo Searsville Lake 121 Comment
  RSA155449  Salix lucida subsp. lasiandra L. S. Rose 1961-2-16 61004 San Mateo 3 miles N of La Honda. 335 Comment
  CAS-BOT-BC129068  Salix scouleriana A. D. E. Elmer 1903-5-1 4864 San Mateo Iverson's Place on the Pescadero Creek Comment
  CAS-BOT-BC126503  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's near Pescadero Creek Comment
  CAS-BOT-BC126519  Salix sitchensis W. R. Dudley 1898-4-24 s.n. San Mateo El Corte de Madera Creek Comment
  CAS-BOT-BC166960  Salix sitchensis Peter Rubtzoff 1975-10-11 8426 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  POM196587  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's near Pescadero Creek. Santa Cruz Peninsula. Comment
  UC306612  Salix sitchensis A. D. E. Elmer March, 1903 4874 San Mateo Portola Comment
  CAS-BOT-BC126504  Salix sitchensis W. R. Dudley 1903-5-2 s.n. San Mateo Bottom land near Upper Shingle Mill on Alpine Cr. above S.E. Haskins Ridge Grade to Pescadero Comment
  RSA681662  Salvia apiana Annuschka Deb 1989-8-18 s.n. San Mateo YBN [Yerba Buena Nursery] Demonstration Garden, Woodside Comment
  JEPS29418  Salvia spathacea L. R. Heckard 1961-7-16 1266 San Mateo just below San Bruno Mt. summit (sw of transmitting station KQED); San Bruno Mt. 304 Comment
  POM62871  Salvia spathacea C. F. Baker 1903-4-6 1878 San Mateo San Bruno Hills. Comment
  UC1176935  Salvia spathacea Peter H. Raven 1950-4-16 1787 San Mateo Colma Canyon; San Bruno Mts. 121 Comment
  SJSU15329  Salvia spathacea A. Hicks 1979-11-23 41 San Mateo near creek above gully at Chestnut and Hillside Blvd., South- west facing slope of San Bruno Mts., South San Francisco. 182 Comment
  POM284212  Sambucus caerulea Lyman Benson 1933-6-14 4447 San Mateo Menlo Park 61 Comment
  CAS-BOT-BC246014  Sambucus nigra subsp. caerulea Fred Hemphill 1973-5-6 754 San Mateo North of Malabar Road and Melendy Drive, San Carlos 207 Comment
  HSC23950  Sambucus nigra subsp. caerulea Mary Katherine Wicksten 1971-6-17 23 San Mateo Huddart Park, along Rd. near Redwood Shelter. Comment
  JROH1672  Sambucus nigra subsp. caerulea John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236453  Sambucus racemosa subsp. racemosa Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Quarry 4, San Bruno Mountain Comment
  CAS-BOT-BC236461  Sambucus racemosa subsp. racemosa Roxana S. Ferris 1921-3-20 2112 San Mateo Pescadero Creek near mouth of canyon, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC236466  Sambucus racemosa subsp. racemosa Alice Eastwood 1933-5-31 s.n. San Mateo Butano Creek Comment
  UC889773  Sambucus racemosa var. racemosa L. R. Abrams 1916-3-26 5589 San Mateo road between San Mateo and Half Moon Bay (coast side of grade) Comment
  CAS-BOT-BC223325  Sanicula bipinnatifida H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside 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
  RSA667078  Sanicula crassicaulis George K. Helmkamp, E. Helmkamp 2001-6-2 6784 San Mateo Central CA coast: Purissima Crk Rd, E of Half Moon Bay at Purissima Crk, 3.2 mi E of CA-1 244 Comment
  CAS-BOT-BC166811  Sanicula crassicaulis Peter Rubtzoff 1976-6-13 8638 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; in upper part of East Fork Colma Creek canyon. Comment
  RSA191945  Sanicula crassicaulis R. F. Thorne, P. Everett 1963-6-9 32242 San Mateo On top of San Bruno Mountain. 335 Comment
  UC1601284  Satureja douglasii Lewis S. Rose 1933-6-9 33220 San Mateo 3 mi w San Bruno Comment
  JEPS85564  Satureja douglasii Craig Dremann 1986-9-13 330 San Mateo Stage Road 1 1/2 mi s San Gregorio Comment
  RSA790262  Schedonorus arundinaceus Peter Rubtzoff 1976-6-13 8633 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and NW of Fog Forest. Comment
  CAS-BOT-BC111782  Schoenoplectus pungens var. badius Ira L. Wiggins 1920-4-27 1982 San Mateo Sand dunes, Ano Nuevo Pt. 7 Comment
  UCD50157  Schoenoplectus pungens var. badius S. Galen Smith; Malcolm A. Nobs 1949-8-25 1558 San Mateo Marshes at Sharp Park, San Mateo County. Comment
  UC652556  Scirpus cernuus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC111061  Scirpus microcarpus Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-25 1559 San Mateo Marshes at Sharp Park. Comment
  JROH4425  Scirpus microcarpus John Rawlings, Carol Zabel 2006-5-8 0905 San Mateo Jasper Ridge Biological Preserve, Stanford University. Off east end of Leonard's Bridge, Trail 13, lakeside of bridge. 106 Comment
  UC1100829  Scirpus microcarpus Malcolm A. Nobs, S. Galen Smith 1949-8-25 1559 San Mateo marshes at Sharp Park Comment
  POM169863  Scoliopus bigelovii A. D. E. Elmer 1903-03 4559 San Mateo Kings Mountain Comment
  POM170228  Scoliopus bigelovii C. F. Baker 1902-3-18 322 San Mateo Kings Mountain Comment
  UC494236  Scoliopus bigelovii Anna E. Ehlers 278 San Mateo San Andreas Comment
  CAS-BOT-BC519005  Scoliopus bigelovii W. R. Dudley 1893-4-1 s. n. San Mateo La Honda Creek Comment
  SEINET926247  Scoliopus bigelovii H. S. Gentry 1931-1 20 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  JROH4129  Scrophularia californica John Hunter Thomas 1983-6-29 22696 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR121556  Scrophularia californica subsp. californica George K. Helmkamp, E. A. Helmkamp 1999-6-28 4980 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CAS-BOT-BC376418  Scrophulariaceae Greg de Nevers 2001-9-26 12630 San Mateo Palo Alto. Comment
  JROH2889  Scutellaria tuberosa John Hunter Thomas 1987-4-23 24208 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5752  Scutellaria tuberosa L. Nordby 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Oak woodland just west of the serpentine grasslands on the top of Jasper Ridge Comment
  UC311530  Sedum radiatum A. D. E. Elmer June 1903 4550 San Mateo Toward San Mateo from Crystal Springs Lake Comment
  CAS-BOT-BC363399  Senecio aronicoides Fred Hemphill 1973-5-14 808 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1219  Senecio aronicoides John H. Thomas 1967-5-10 12855 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC363389  Senecio aronicoides Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  CAS-BOT-BC363402  Senecio aronicoides Kellogg No date on label s.n. San Mateo Crystal Springs Comment
  RSA0012757  Senecio aronicoides Lyman Benson 1930-5-26 2129 -A San Mateo Stanford University, Lake Searsville. 152 Comment
  RSA0013329  Senecio aronicoides P. H. Raven 1950-4-6 s.n. San Mateo Colma Canyon, San Bruno Mts. Comment
  SJSU5433  Senecio aronicoides G. I. Tourtlotte 1968-5-5 San Mateo N end Sawyer Camp Rd near Crystal Springs Comment
  UC1219871  Senecio glomeratus J. H. Thomas 1961-5-7 9275 San Mateo San Bruno Mountain 304 Comment
  CAS-BOT-BC353468  Senecio jacobaea Peter Rubtzoff 1975-10-24 8434 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. Uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest, San Bruno Mountains. Comment
  CAS-BOT-BC364238  Senecio sylvaticus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. East facing slope below parking lot Comment
  JROH1227  Senecio vulgaris John Hunter Thomas 1980-11-27 20191 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD135850  Senecio vulgaris J. D. Skoss 1948-7-25 45 San Mateo San Vicente, near Montara. Comment
  CAS-BOT-BC80294  Sequoia sempervirens William R. Dudley 1894-2-25 s.n. San Mateo near Summit Springs Comment
  JROH134  Sequoia sempervirens John H. Thomas 1964-11-29 10542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM176867  Sequoia sempervirens E. G. Dudley 1904-1-21 74 San Mateo Santa Cruz Peninsula: Canada de Raymundo, Santa Cruz Mountains 274 Comment
  UC405205  Sequoia sempervirens unknown 1874-1-1 San Mateo Comment
  UCSB9574  Sequoia sempervirens Haller, John 1950-4-24 San Mateo Skyline drive, junction with woodside, La Honda Road 609 Comment
  CAS-BOT-BC85784  Sequoia sempervirens Atkinson 1901-1-27 s.n. San Mateo Santa Cruz Mountain Peninsula, near Preston's Place, Portola Valley Comment
  SEINET10612343  Sequoia sempervirens Paulson 1914-10-21 PAULSON s.n. 1914 San Mateo Kings Mountain near woodside. Herbarium of Leland Stanford Jr. University. Plants of the Santa Cruz Mountain Penninsula. Comment
  SEINET10929338  Sequoia sempervirens R. D. Sage 1992-1-6 Sage 13397 San Mateo Collected along Purisima Creek Rd trail in Purisima Creek Redwoods Open Space Preserve. 9 km W of Woodside. 244 Comment
  CDA33644  Sesbania punicea Robin Breckenridge 2010-7-2 PDR# 1313483 San Mateo East Palo Alto; Cooley Ave. 0 Comment
  JROH3833  Sherardia arvensis John H. Thomas 1974-4-4 17077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3826  Sherardia arvensis John H. Thomas 1955-5-6 4996 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small draw on south side of ridge. 182 Comment
  CHSC27889  Sidalcea malviflora subsp. purpurea Susan Perkins 1978-3-24 8 San Mateo San Gregorio Beach, 100 yds w of jct Hwys 1 and 84, 9 mi w of La Honda. Bluff n side of San Gregorio Creek. 15 Comment
  CAS-BOT-BC386851  Silene gallica Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountain. Bitter Cherry Ravine. Comment
  JROH1740  Silene gallica John Hunter Thomas 1986-4-24 23978 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate Comment
  CAS-BOT-BC389898  Silene scouleri subsp. scouleri Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain Comment
  CHSC90614  Sisyrinchium bellum Diane Mastalir 1988-3-27 3 San Mateo 10 yds s of jcn hwy 92 and hwy 35. Roadside. 91 Comment
  RSA125832  Sisyrinchium bellum G. R. Campbell 1956-4-4 2 San Mateo La Honda Rd (from Highway 5) to Woodside, 3 miles from Mt. Home-Portola road 915 Comment
  RSA18327  Sisyrinchium californicum Carl B. Wolf 1929-5-10 3708 San Mateo Coast at Pigeon Pt. South of Pescadero. Comment
  UC518005  Smilacina stellata Lewis S. Rose 1933-4-9 33070 San Mateo Belmont Comment
  SEINET5571657  Smilacina stellata H. S. Gentry 1931-1 3 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  JEPS12105  Solanum douglasii W. I. Follett 1934-2-18 10 San Mateo 2.6 mi n of Pigeon Point (beside the main highway) Comment
  SEINET5571744  Solanum douglasii H. S. Gentry 1931-1 88 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UCR247942  Solanum elaeagnifolium John Beall 2010-6-9 PDR- 1621662 San Mateo Brisbane; abandoned train tracks 10 m west of Tunnel Ave., south of Beatty Rd. One half mile south of Bayshore Caltrain station, near San Mateo/San Francisco county line 6 Comment
  CAS-BOT-BC166662  Solanum furcatum Peter Rubtzoff 1974-12-17 7941 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  SJSU15426  Solanum physalifolium var. nitidibaccatum Toni Corelli 2011-8-25 707 San Mateo Ano Nuevo State Park, along Hwy. 1 south of main entrance 30 Comment
  UC563964  Solanum physalifolium var. nitidibaccatum Ira L. Wiggins 1935-8-24 8164 San Mateo 1/2 mi s of Moss Beach Comment
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Mar 12 2009
  HSC23784  Solanum umbelliferum Mary Katherine Wicksten 1971-6-17 58 San Mateo Huddart Park, above Oak Flat Comment
  JROH4185  Solanum umbelliferum John H. Thomas 1956-4-7 5603 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY820568  Solanum umbelliferum L. S. Rose 1934-2-10 34024 San Mateo Woodside. Canyons in Hills Comment
  POM62325  Solanum umbelliferum C. F. Baker 1902-1-15 234 San Mateo Kings Mountain. West side of King's Mountain. Comment
  UC884945  Solanum umbelliferum Lewis S. Rose 1939-2-26 39016 San Mateo Emerald Lake 182 Comment
  UCSC007782  Solanum umbelliferum Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  RSA133955  Solidago canadensis subsp. elongata John H. Thomas 1959-8-16 8065 San Mateo About two miles southwest of Pescadero. 61 Comment
  CAS-BOT-BC365536  Solidago elongata Lewis S. Rose 1931-9-19 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC365712  Solidago spathulata Phillip C. Wheeler 1965-8-16 s.n. San Mateo San Bruno Mountain. Lower April Brook Comment
  SD38299  Solidago spathulata Edith A. Purer 1932-7-18 San Mateo Comment
  JROH1237  Solidago velutina subsp. californica John Hunter Thomas 1990-7-28 24938 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC365937  Soliva sessilis Ira L. Wiggins 1950-5-20 12352 San Mateo Pescadero Beach Comment
  JROH1245  Soliva sessilis John Hunter Thomas 1980-5-8 19960 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1253  Soliva sessilis John Hunter Thomas 1989-5-11 24736 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA60662  Soliva sessilis I. L. Wiggins 1950-5-20 12352 San Mateo Pescadero Beach. Comment
  UC909336  Soliva sessilis Ira L. Wiggins 1950-5-20 12352 San Mateo above Pescadero Beach Comment
  CAS-BOT-BC365932  Soliva sessilis Walter Knight; Irja Knight 1964-4-13 635 San Mateo San Bruno Mountain. North Power Line Ridge road Comment
  JROH1256  Sonchus asper subsp. asper John H. Thomas 1968-5-3 14438 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176778  Sonchus oleraceus John H. Thomas 1963-5-20 10112 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC374705  Sonchus oleraceus Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  JROH1260  Sonchus oleraceus John H. Thomas 1964-11-29 10534 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville Dam Comment
  SD38308  Sonchus oleraceus Edith A. Purer 1932-7-18 San Mateo Half Moon Bay; Comment
  UCSB17217  Sonchus oleraceus 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 Mountains 152 Comment
  UCSC007783  Sonchus oleraceus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  POM182582  Sparganium erectum subsp. stoloniferum D. D. Keck 1931-8-6 1264 San Mateo Near Searsville Lake. 75 Comment
  CAS-BOT-BC236626  Spartina foliosa Ira L. Wiggins 1938-11-25 9213 San Mateo Along Dumbarton Bridge approach. Comment
  CAS-BOT-BC390011  Spergula arvensis Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  RSA15628  Spergula arvensis C. B. Wolf 1928-2-16 1476 San Mateo Near Alpine Road. Comment
  UCD99177  Spergula arvensis J. D. Skoss 1948-7-25 51 San Mateo San Vicente Canyon near Montara. Comment
  JEPS51204  Spergula arvensis subsp. arvensis W. L. Jepson 1923-10-18 10257 San Mateo hills w. Colma (near ocean) Comment
  CAS-BOT-BC390201  Spergularia bocconi G. B. Rossbach; R. P. Rossbach 1940-6-20 737 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC390206  Spergularia bocconi Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo San Bruno Mountains. P.G.&E. Marsh Comment
  CDA24131  Spergularia macrotheca T. C. Fuller 1967-6-13 15939 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  CAS-BOT-BC390460  Spergularia macrotheca var. macrotheca Ira L. Wiggins; Roxana S. Ferris 1939-8-2 9290 A San Mateo Ano [Ano] Nuevo Point Comment
  CAS-BOT-BC390467  Spergularia macrotheca var. macrotheca Elsie M. Zeile 1921-7-30 s.n. San Mateo Salada Comment
  CAS-BOT-BC390455  Spergularia macrotheca var. macrotheca J. H. Thomas 1949-6-4 584 San Mateo 1.4 miles S. of road leading to Pescadero Comment
  CAS-BOT-BC390475  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1937-11-25 608 San Mateo 3 mi. south of Half Moon Bay 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
  CAS-BOT-BC390922  Spergularia marina Walter Knight; Irja Knight 1964-9-2 984 San Mateo San Bruno Mountain. Beach at Point San Bruno Comment
  CAS-BOT-BC390702  Spergularia rubra Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Base of Quarry 2 Comment
  RSA0097346  Spergularia rubra var. perennans Lyman Benson 1934-7-29 6113 San Mateo Moss Beach. Pcific Ocean watershed. 15 Comment
  SEINET13947989 Image available Stachys ajugoides Lewis S. Rose 1941-1 41469 San Mateo Low wet open fields, Belmont. Alt ca 3 m 3 Comment
  UC306581  Stachys ajugoides var. ajugoides A. D. E. Elmer June, 1903 4260 San Mateo Crystal Springs Lake Comment
  UC32568  Stachys ajugoides var. ajugoides W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  JROH2904  Stachys bullata John Hunter Thomas 1977-6-16 18809 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Searsville Lake Comment
  POM283278  Stachys bullata Lyman Benson 1930-6-14 2160 San Mateo La Honda. 305 Comment
  RSA116743  Stachys bullata L. R. Abrams 1915-6-7 5245 San Mateo Woodside to Crystal Springs Road. Comment
  POM126367  Stachys chamissonis Katherine Brandegee 1913-08 s.n. San Mateo Tobin Comment
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Feb 9 2022
  RSA131278  Stachys chamissonis Roxana S. Ferris 1921-5-29 2180 San Mateo Lagoon head of New Years Pt. Comment
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Feb 9 2022
  SEINET10851465 Image available Stachys gracilenta A. Arthur Heller 1907-5-28 Heller 8574 San Mateo Above Crystal Springs on the Half Moon Bay road. Comment
  RSA0109086  Stachys pycnantha W. R. Dudley 1902-9-21 s.n. San Mateo Near Crystal Springs Lake. Comment
  JROH2892  Stachys rigida var. quercetorum John H. Thomas 1967-5-12 12884 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2894  Stachys rigida var. quercetorum John Hunter Thomas 1978-4-20 19089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1273  Stebbinsoseris heterocarpa John Rawlings 2007-5-30 1035 San Mateo Jasper Ridge Biological Preserve, Stanford University; uphill from Escobar horse trail, 126 Comment
  CAS-BOT-BC394057  Stellaria media John H. Thomas 1964-4-30 10358 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH1787  Stellaria media John Hunter Thomas 1983-4-5 21323 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  UCSC007784  Stellaria media Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH1791  Stellaria nitens John Hunter Thomas 1988-5-16 24462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5560  Stellaria nitens John Rawlings 2013-4-19 1154 San Mateo Jasper Ridge Biological Preserve, Stanford University. South side of Trail 11 in a level section in chamise. 136 Comment
  JROH5735  Stellaria nitens John Rawlings 2015-4-5 1655 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  OBI22283  Stipa pulchra Lewis S. Rose 1963-4-27 63000 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  JROH5609  Stuckenia pectinata Ann Lambrecht, Paul Heiple 2008-8-6 45 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  SD38069  Stylomecon heterophylla Edith A. Purer 1933-5-5 3630 San Mateo Woodside Road. Comment
  SEINET12265437  Symphoricarpos albus J. I. McMurphy 1906-1 75 San Mateo Santa Cruz Peninsula, Woodside, Santa Cruz Mts 152 Comment
  CAS-BOT-BC271638  Symphoricarpos albus var. laevigatus D. E. Breedlove 1974-5-13 36218 San Mateo Brushy slopes San Pedro Valley Park, Pacifica 152 Comment
  RSA3068  Symphoricarpos albus var. laevigatus C. B. Wolf 1931-8-20 2325 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp. 91 Comment
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Sep 30 2011
  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-BC344894  Symphyotrichum chilense Peter Rubtzoff 1974-12-17 7944 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  UC892754  Symphyotrichum chilense Lewis S. Rose 1933-10-14 33381 San Mateo Visitacion Valley, (dry hills) Vistacion Valley Comment
  CAS-BOT-BC99053  Symphyotrichum chilense Alice Eastwood 1914-10-1 s.n. San Mateo Mussel Rock Comment
  CAS-BOT-BC99058  Symphyotrichum chilense David D. Keck 1930-10-15 989 San Mateo South-west of Woodside 457 Comment
  CAS-BOT-BC99059  Symphyotrichum chilense Walter Knight; Irja Knight 1963-10-7 321 San Mateo San Bruno Mountain - Cow Trough Ravine, South San Francisco Comment
  CAS-BOT-BC99064  Symphyotrichum chilense Peter Rubtzoff 1975-10-4 8416 San Mateo San Bruno Mountain - on ridge northwest of Fog Forest Comment
  CAS-BOT-BC98362  Symphyotrichum subulatum var. parviflorum John H. Thomas 1968-10-6 14851 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. East of Palo Alto. Comment
  UCR256289  Taraxacum officinale Peter Rubtzoff 1976-5-22 8553 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC376918  Taraxacum officinale Paul Reeberg 1989-5-1 s.n. San Mateo San Bruno Mountains. Junction of Randolph Ave. and Hillside Blvd. Comment
  CHSC39813  Taraxia ovata Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  UC1537659  Taraxia ovata Gordon H. True Jr. 1937-3-31 612 San Mateo Salada Beach Road 60 Comment
  JROH2997  Taraxia ovata W. R. Dudley 1894-3-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; canada above Searsville Reservoir Comment
  JROH3000  Taraxia ovata Duncan M. Porter 1961-4-8 746 San Mateo Jasper Ridge Biological Preserve, Stanford University; in large meadow at crest of ridge Comment
  CAS-BOT-BC447480  Tellima grandiflora John H. Thomas 1961-5-14 9363 San Mateo Vicinity of pilarcitos Stone Dam on Pilarcitas Creek. San Francisco Watershed reserve. 152 Comment
  UC1127673  Tellima grandiflora H. S. Yates 1935-5-8 5213 San Mateo 1.5 mi s Mindego Hill; Santa Cruz Quad. 335 Comment
  UC1300841  Tellima grandiflora Helen K. Sharsmith 1963-3-23 5250 a San Mateo between Pescadero and San Gregorio; San Francisco Bay Region 15 Comment
  RSA127726  Tetragonia tetragonoides John H. Thomas 1959-7-8 8015 San Mateo Low moist coastal bluffs at Pescadero Beach. Comment
  CAS-BOT-BC438266  Tetragonia tetragonoides J. H. Thomas 1963-8-4 10239 San Mateo Just north of Pigeon Pt. Light House. Comment
  JROH3510  Thalictrum fendleri var. polycarpum John H. Thomas 1973-3-12 16495 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC399839  Thalictrum polycarpum J. H. Thomas 1954-4-3 3834 San Mateo Pilarcitos Creek Road, 3.5 miles NE of Halfmoon [Half Moon] Bay 121 Comment
  CAS-BOT-BC399851  Thalictrum polycarpum C. F. Baker 1902-5-1 692 San Mateo Crystal Springs Lake Comment
  UC16389  Thermopsis macrophylla var. macrophylla Alice Eastwood April 1896 San Mateo road to Crystal Springs Comment
  CAS-BOT-BC202036  Thinopyrum ponticum Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains. Along Bayshore Boulevard 15 Comment
  CAS-BOT-BC66656  Thysanocarpus curvipes J. H. Thomas 1954-5-7 4068 San Mateo Near Skyline Boulevard. About 2 miles southwest of Black Mountain. 655 Comment
  JROH1598  Thysanocarpus curvipes John Hunter Thomas 1982-4-28 20870 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC66683  Thysanocarpus curvipes Carl B. Wolf 1929-5-17 3716 San Mateo 1 mile west of Skyline Boulevard on Alpine Road. 304 Comment
  CAS-BOT-BC447579  Tiarella trifoliata var. unifoliata D. E. Breedlove 1973-9-26 35562 San Mateo Pescadero Creek County Park 365 Comment
  CAS-BOT-BC447581  Tiarella trifoliata var. unifoliata L. R. Abrams 1907-8-26 s.n. San Mateo Spring near King's 762 Comment
  JROH379  Torilis arvensis John Hunter Thomas 1990-7-4 24872 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH399  Torilis nodosa John Hunter Thomas 1986-6-7 24085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA45321  Torreya californica I. L. Wiggins 1945-5-5 11161 San Mateo Along La Honda Creek about 1 mile above La Honda 152 Comment
  SEINET10872331  Torreya californica Delzie Demaree 1933-6-23 Demaree 10393 San Mateo Red Wood Canyons. White House Creek. Comment
  UCSB17162  Toxicodendron diversilobum Schulte, John 1963-4-23 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 137 Comment
  CHSC57068  Tragopogon porrifolius Steven Triano 1988-5-24 190 San Mateo On the sw corner of the jct. of Portola Road and Old La Honda Road, ca 3.2 mi s of Woodside. 115 Comment
  JROH3390  Trientalis latifolia John H. Thomas 1970-5-16 15630 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5897  Trientalis latifolia M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail by San Francisquito Creek, near Redwoods Comment
  UCD117573  Trientalis latifolia D. H. Hartmann 1941-4-26 s.n. San Mateo west of Palo Alto. Comment
  UC16607  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1893-6-17 774 San Mateo Belmont Comment
  UC33493  Trifolium albopurpureum var. dichotomum Mr. E. R. Drew April 1888 San Mateo San Pedro Ranch Comment
  UC165524  Trifolium barbigerum J. Burtt Davy 1895-1 1015 San Mateo Pilacitos Comment
  UC203053  Trifolium bifidum var. bifidum A. D. E. Elmer April, 1903 4798 San Mateo Portola Comment
  SJSU7992  Trifolium bifidum var. bifidum M. S. Hall 1965-5-8 111 San Mateo near canyon bottom, W San Carlos Hills Comment
  JROH2248  Trifolium bifidum var. decipiens G. C. Kimber & Lucile Roush 1918-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC005498  Trifolium bifidum var. decipiens Randall Morgan 1995-6-22 2795 San Mateo Ridge west of Waterman Creek Comment
  JROH2264  Trifolium depauperatum var. amplectens John Hunter Thomas 1982-4-28 20868 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC630933  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-5-2 10098 San Mateo e Daly city (hills) Comment
  JROH2231  Trifolium dichotomum John H. Thomas 1966-4-22 11574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15229  Trifolium fragiferum Toni Corelli 2012-7-12 805 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay 22 Comment
  JROH2283  Trifolium fucatum John H. Thomas 1955-5-6 4987 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent grassy slopes Comment
  JROH2300  Trifolium fucatum John Hunter Thomas 1983-4-21 21639 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2309  Trifolium fucatum John Hunter Thomas 1991-5-7 25035 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC16510  Trifolium fucatum J. Burtt Davy 1895-4-20 1022 San Mateo Millbrae Comment
  SJSU7974  Trifolium fucatum S. H. Anderson 1962-4-15 San Mateo Burlingame Hills Comment
  UCSB7299  Trifolium fucatum Walker, Clifford 1954-4-20 San Mateo 50 yds. from ocean, 1 mi. S of Half Moon Bay Comment
  POM216312  Trifolium fucatum var. fucatum D. D. Keck 1933-5-11 2295 San Mateo Montara Light House and Radio Station. Comment
  POM88134  Trifolium fucatum var. fucatum L. R. Abrams 1902-5-4 2424 San Mateo Woodside Comment
  RSA120972  Trifolium fucatum var. fucatum L. R. Abrams 1914-4-5 5086 San Mateo Menlo Park Comment
  UC165628  Trifolium gracilentum J. Burtt Davy 1895-1 1026 San Mateo Pilarcitos Comment
  CDA27958  Trifolium gracilentum T. C. Fuller 1967-6-13 15941 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  JROH2315  Trifolium gracilentum Ynez Henderson 1920-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  UC1130082  Trifolium microdon H. S. Yates 1935-5-8 5205 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  JROH2340  Trifolium oliganthum John H. Thomas 1968-4-19 14306 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
  UC2048923  Trifolium suffocatum Neal Kramer 2016-4-9 2169 a San Mateo Pescadero State Beach Parking Area. Comment
  UC2048924  Trifolium suffocatum Neal Kramer 2016-4-17 2169 b San Mateo Bean Hollow State Beach trail north of parking area. Comment
  UCD78150  Trifolium tomentosum Robert E. Preston 2008-4-2 2602 San Mateo 1.1 mi SE of San Andreas Reservoir, at jct two dirt roads 107 Comment
  JROH2387  Trifolium variegatum John Hunter Thomas 1981-4-23 20470 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2391  Trifolium variegatum John Hunter Thomas 1992-4-23 25155 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Indian grinding rock and along trail to redwoods Comment
  UCSC006378  Trifolium variegatum Randall Morgan 1995-6-22 2796 San Mateo On flat top ridge W of Waterman Creek, Redtree Properties 335 Comment
  RSA131360  Trifolium variegatum var. melananthum John H. Thomas 1955-5-6 4999 San Mateo Jasper Ridge about 3.5 miles southwest of Stanford University. 152 Comment
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Feb 5 2019
  JROH2414  Trifolium willdenovii Carol Zabel 1989-4-19 13 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM277649  Trifolium willdenovii Lyman D. Benson 1930-5-3 2095 San Mateo Roadside on La Honda Grade. Above Woodside. Santa Cruz Mtn range. 305 Comment
  POM226853  Trifolium willdenovii L. R. Abrams 1914-4-2 5075 San Mateo Menlo Heights. Comment
  SEINET12157356  Trifolium willdenovii Unknown 1932-1 9014 San Mateo Los Francos Woods Comment
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Oct 31 2021
  POM20402  Trifolium wormskioldii A. D. E. Elmer 1903-04 4858 San Mateo Lake San Andreas Comment
  CAS-BOT-BC451907  Triglochin maritima Le Roy Abrams 1901-3-1 1145 San Mateo Cooley's Landing Comment
  JROH4730  Trillium chloropetalum John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15439  Trillium chloropetalum Toni Corelli 2009-3-10 426 San Mateo Gazos Creek Road, San Mateo Coast Comment
  UC844442  Trillium chloropetalum Lewis S. Rose 1937-3-14 37001 San Mateo Emerald Lake 198 Comment
  SD27763  Trillium chloropetalum Carl B. Wolf 1927-3-6 236 San Mateo About 2 miles back of Stanford University. 60 Comment
  POM169971  Trillium chloropetalum var. chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake. Comment
  RSA15264  Trillium chloropetalum var. chloropetalum Carl B. Wolf 1927-2-27 228 San Mateo Near Pescadero, 1/2 mile inland. Comment
  CAS-BOT-BC521205  Trillium chloropetalum var. giganteum L. R. A. 1902-4-13 2331 San Mateo Crystal Springs Lake Comment
  SEINET12044480  Trillium chloropetalum var. giganteum H. R. Davis 1920-1 s.n. San Mateo Santa Cruz Mountain Peninsula, near Searsville Lake Comment
  SEINET12044497  Trillium chloropetalum var. giganteum L. S. Rose 1937-1 37001 San Mateo Emerald Lake 198 Comment
  SEINET12046255  Trillium chloropetalum var. giganteum C. F. Leithold 1894-1 s.n. San Mateo Santa Cruz Peninsula, Woodside Comment
  CAS-BOT-BC133449  Trillium ovatum W. R. Dudley 1893-2-19 s.n. San Mateo On Alpine Road above La Honda Comment
  RSA378212  Trillium ovatum J. Doty 1969-3-26 601 San Mateo State Highway 34, 6 miles north of its junction with State Highway 38. Comment
  JROH4130  Triphysaria eriantha subsp. eriantha W. R. Dudley 1896-3-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ridge east of Searsville Dam Comment
  UC204180  Triphysaria eriantha subsp. rosea A. D. E. Elmer May, 1903 4670 San Mateo South San Francisco Comment
  UC27281  Triphysaria eriantha subsp. rosea Ivar Tidestrom May, 1894 San Mateo Comment
  CAS-BOT-BC238558  Triphysaria floribunda Alice Eastwood 1915-5-6 s.n. San Mateo Burlingame Comment
  CAS-BOT-BC238569  Triphysaria floribunda L. R. A. 1902-4-13 2321 San Mateo Lake San Andreas Comment
  CAS-BOT-BC238578  Triphysaria floribunda Javier Penalosa 1963-3-30 2734 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 289 Comment
  JEPS4532  Triphysaria floribunda R. F. Hoover 1939-4-21 4057 San Mateo 2 mi s Colma Comment
  UC1012338  Triphysaria floribunda F. W. Pennell and D. D. Keck 1940-5-15 25426 San Mateo Route 101, 4 mi w Burlingame 152 Comment
  JROH4139  Triphysaria pusilla John H. Thomas 1974-4-13 17154 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of ridge Comment
  SEINET7097919  Triphysaria versicolor A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  JEPS4534  Triphysaria versicolor subsp. versicolor Maude Farley 1951-5-20 San Mateo near Pigeon Point; near Pigeon Point Comment
  JROH5467  Trisetum canescens John Rawlings 2008-5-4 1038 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1, creekside, a few meters east of first redwood grove. 81 Comment
  UCD93599  Trisetum canescens P. B. Kennedy 1916-4-1 s.n. San Mateo Daly City, Colma Canyon, S San Francisco. Comment
  SEINET12053133  Triteleia hyacinthina Unknown 1933-1 San Mateo Portala Rd Comment
  SEINET12044735  Triteleia ixioides P. R. Hichborn 1921-1 231 San Mateo Santa Cruz Mountain peninsula Comment
  SD39087  Triteleia ixioides subsp. ixioides Marie Cummings 1933-5-23 116 San Mateo La Honda. Comment
  RSA18305  Triteleia laxa Carl B. Wolf 1927-5-31 411 San Mateo North end of Searsville Lake. Comment
  CAS-BOT-BC526363  Triteleia laxa John H. Thomas 1971-5-2 15847 San Mateo Near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC526364  Triteleia laxa Philip C. Wheeler 1965-6-8 s.n. San Mateo Crocker Hills, San Bruno Mountain Comment
  IRVC9055  Triteleia laxa P. W. Rundel 1963-6-11 1118 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  JROH1625  Tropidocarpum gracile H. J. Dengler 1972-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north bend of San Francisquito Creek Comment
  CAS-BOT-BC74057  Turritis glabra Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain. Below top of mountain near radio station. Comment
  CAS-BOT-BC213098  Ulex europaeus J. H. Thomas 1960-11-11 8924 San Mateo Along Skyline Drive about 0.2 mi. N of Pulgas water temple. 91 Comment
  CAS-BOT-BC213100  Ulex europaeus J. H. Thomas 1961-5-7 9322 San Mateo San Bruno Mountain in northern part of county Comment
  SBBG103948  Ulex europaeus D. Pendleton 1993-10-28 San Mateo San Bruno Mtn Park, 0.3 mi E of the park gate/parking lot on Guadalupe Cyn Parkway Comment
  UCR78329  Ulex europaeus Don Pendleton 1993-10-28 s.n. San Mateo San Francisco Bay Area, San Bruno Mountain State/County Park, 0.3 mi. east of the park gate/parking lot on Guadalupe Canyon Parkway 300 Comment
  JEPS121560  Umbellularia californica Adam C. Schneider with C. Matt Guilliams 2013-3-9 39 San Mateo Crystal Springs Reservoir Comment
  POM272292  Umbellularia californica Lyman Benson 1931-2-16 2582 a San Mateo Stanford University, San Francisquito Creek. 61 Comment
  RSA15340  Umbellularia californica C. B. Wolf 1927-2-5 151 San Mateo Pilarcitos Lake Comment
  CAS-BOT-BC382766  Uropappus lindleyi John H. Thomas 1971-5-2 15842 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JROH1296  Uropappus lindleyi John Hunter Thomas 1989-5-9 24714 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA7780  Urospermum picroides T. C. Fuller 1974-5-21 19991 San Mateo San Pedro Valley County Park, 0.2 miles east of the end of Linda Mar Boulevard, Pacifica. 0 Comment
  UCD111539  Urtica dioica subsp. gracilis G. K. Helmkamp; E. A. Helmkamp 2001-6-2 6780 San Mateo Central CA coast: Purissima Crk Road, E of Half Moon Bay at Purissima Crk, 3.2 miles E of CA-1. 243 Comment
  CAS-BOT-BC403970  Urtica dioica subsp. gracilis Dennis W. Woodland 1970-8-14 1624 San Mateo At Stage Road and Seaside School Road on NE corner Comment
  CAS-BOT-BC403972  Urtica dioica subsp. gracilis John H. Thomas 1966-9-13 12393 San Mateo Montara Comment
  CAS-BOT-BC412533  Urtica urens J. H. Thomas 1961-5-6 9225 San Mateo About 1/4 mile west of center of Pescadero 15 Comment
  CAS-BOT-BC412534  Urtica urens John H. Thomas 1967-5-27 11638 San Mateo Menlo Park, near the Southern Pacific train station Comment
  RSA195561  Urtica urens John H. Thomas 1967-2-9 12405 San Mateo Half Moon Bay. Near Mills St. and Purissima St. Comment
  CAS-BOT-BC199174  Vaccinium cespitosum Robert F. Thorne; P. Everett 1963-6-9 32214 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain 335 Comment
  OBI14436  Vaccinium ovatum Lewis S. Rose 1964-3-14 64005 San Mateo Kings Mountain 610 Comment
  RSA10269  Vaccinium ovatum H. A. Barker 1927-5-6 693 San Mateo Summit of Kings Mts. Comment
  RSA681684  Vaccinium ovatum Annuschka Deb 1989-3-31 63 San Mateo Woodside. Comment
  SJSU11091  Vaccinium ovatum S. H. Casey 1969-5-18 260 San Mateo near summit San Bruno Mt Comment
  UC571031  Vaccinium ovatum H. L. Mason 1928-2-22 4165 San Mateo Summit of San Bruno Mountains Comment
  CDA38876  Vaccinium ovatum A. C. Browne 1950-5-3 s.n. San Mateo La Honda. 0 Comment
  CAS-BOT-BC199468  Vaccinium parvifolium W. R. Dudley 1901-12-31 s.n. San Mateo Gazos Creek Comment
  UC141744  Vaccinium parvifolium Dr. E. B. Copeland 1903-5-9 3249 San Mateo Big Basin of Pescadero Creek Comment
  RSA187475  Verbascum thapsus John H. Thomas 1958-9-15 7477 San Mateo 3 miles north of Woodside along Canada Rd. 122 Comment
  JROH4272  Verbena lasiostachys var. scabrida John H. Thomas 1968-5-22 14463 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near edge of lake Comment
  JEPS81152  Vicia benghalensis Edward Lee with H. L. Mason 1935-6-16 1527 San Mateo between Ano Nuevo and Franklin Point Comment
  RSA254231  Vicia dasycarpa Robert A. Norris 1975-3-31 2290 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  POM16883  Vicia gigantea Baker 1902-4-12 506 San Mateo San Gregorio Comment
  SEINET7097925  Vicia gigantea A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  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
  SBBG50995  Vinca major J. Doty 1969-3-27 611 San Mateo W side of State Hwy 1, ca. 4 mi N of San Gregorio State Beach Park 30 Comment
  CAS-BOT-BC264043  Viola adunca Catherine A. Toschi 1963-3-17 63 :70 San Mateo San Bruno Mountain. NE slope below radio station Comment
  CAS-BOT-BC264044  Viola adunca Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain. Below top of mountain in vicinity of radio station Comment
  UC1121562  Viola adunca A. E. Wieslander 1935-2-3 507 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  JEPS91201  Viola glabella Dean W. Taylor 1972-2-27 1336 San Mateo near San Andreas Lake 121 Comment
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Feb 2 2012
  POM135230  Viola glabella A. D. E. Elmer 1900-04 2263 San Mateo Kings Mtn. Comment
  CAS-BOT-BC536572  Viola glabella Mrs. E. C. Sutliffe 1921-4-3 s.n. San Mateo Lake Pilarcitos Comment
  POM135301  Viola glabella Stewart H. Burnham 1895-5-8 792 San Mateo Outer Coast Range. Comment
  JEPS50194  Viola odorata James G. Daly c. 1934 181 San Mateo 4 mi w of Skyline (Upper Corte Madera Canyon); Santa Cruz Mountains, Upper Corte Madera Canyon Comment
  RSA412720  Viola pedunculata Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  UC1057444  Viola pedunculata G. Thomas Robbins 1937-4-11 84 San Mateo on slopes above Spring Valley Lake (s of San Francisco) Comment
  POM286641  Viola pedunculata Lyman D. Benson 1941-7-16 1022 San Mateo North of South San Francisco Comment
  POM216553  Viola sempervirens D. D. Keck 1932-3-6 1398 San Mateo La Honda Road, 1 mile SW of Skyline Blvd, Santa Cruz Mtns. 274 Comment
  RSA130691  Viola sempervirens W. R. Dudley 1893-1-20 s.n. San Mateo El Corte Madera. The Santa Cruz Mountain Peninsula. Comment
  UCSB21796  Viola sempervirens Masero, Ann 1967-3-21 San Mateo Butano Canyon, 3.7 miles east of junction of Cloverdale Road and Canyon Road on Canyon Road 131 Comment
  JROH5576  Vitis vinifera John Rawlings, Toni Corelli 2013-5-28 1178 San Mateo Jasper Ridge Biological Preserve, Stanford University. Hermit Cabin Site. 182 Comment
  CAS-BOT-BC182765  Vulpia bromoides Peter Rubtzoff 1978-5-18 9169 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  CAS-BOT-BC199848  Vulpia bromoides W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  CAS-BOT-BC199855  Vulpia bromoides Catherine A. Toschi 1963-2-23 63 :24 San Mateo North slope San Bruno Mountains above Crocker Avenue 152 Comment
  CAS-BOT-BC199860  Vulpia bromoides William Lundgren 1974-7-1 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC199862  Vulpia bromoides George Oberlander 1949-5-13 138 San Mateo South of San Andreas Dam Comment
  RSA790283  Vulpia bromoides Peter Rubtzoff 1976-6-13 8635 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment