Search Results — 2000 specimen records retrieved (1321 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
  SD12566  Abronia latifolia Edith Purer 1933-7-27 5381 San Mateo Two miles south of Pigeon Point Comment
  SEINET11941811  Abronia latifolia Unknown 1932-1 9119 San Mateo Half Moon Bay Comment
  RSA0025967  Abronia umbellata L. S. Rose 1935-10-12 35654 San Mateo Salada. 3 Comment
  SJSU948  Acacia longifolia C. P. Hoyt 1948-2-28 San Mateo residence, San Mateo Comment
  CAS-BOT-BC451118  Acaena pinnatifida var. californica Reed C. Rollins 1942-4-30 3015 San Mateo San Bruno Hills, 1 mile south of Daly City. Comment
  POM139634  Acaena pinnatifida var. californica A. D. E. Elmer 1903-04 4823 San Mateo San Bruno Hills. Comment
  SJSU8181  Acaena pinnatifida var. californica S. H. Casey 1969-4-17 228 San Mateo Colma Canyon, San Bruno Mountain Comment
  UC764000  Acaena pinnatifida var. californica R. F. Hoover 1939-4-21 4053 San Mateo 2 mi. s. Colma Comment
  CAS-BOT-BC451123  Acaena pinnatifida var. californica George Oberlander 1950-5-6 876 San Mateo Grassland about San Andreas Lake; San Francisco Watershed Reserve Comment
  JEPS81238  Acanthomintha duttonii Susan C. Sommers 1982-5-20 San Mateo Edgewood Park Comment
  UC761787  Acanthomintha duttonii R. F. Hoover 1941-5-20 5110 San Mateo Redwood City Comment
  RSA0076539  Acanthomintha obovata subsp. duttonii Paul R. Hichborn 1920-6-1 s.n. San Mateo Back of Redwood City. Comment
  CAS-BOT-BC333288  Acer macrophyllum W. R. Dudley 1906-6-14 s.n. San Mateo Santa Cruz Mountain Peninsula. San Francisquito Creek, near Cedro Cottage, Stanford Univ. Comment
  CAS-BOT-BC336920  Acer negundo var. californicum George Oberlander 1949-4-30 117 San Mateo San Francisco Watershed Reserve, east boundry Comment
  CAS-BOT-BC28768  Achillea millefolium Daniel Cohen 1953-5-9 79 San Mateo Top of sea cliff near Pescadero Comment
  JROH450  Achillea millefolium John Hunter Thomas 1986-5-6 24016 San Mateo Jasper Ridge Biological Preserve, Stanford University 181 Comment
  JROH454  Achillea millefolium John Hunter Thomas 1989-5-9 24703 San Mateo Jasper Ridge Biological Preserve, Stanford University 180 Comment
  CAS-BOT-BC18853  Achillea millefolium Barbara Shervanick 1973-4-1 813 San Mateo San Bruno Mountain, at the end of Crocker Road Comment
  HSC23987  Achillea millefolium Mary Katherine Wicksten 1971-6-24 109 San Mateo Huddart Park, side of park entrance Comment
  RSA719885  Achillea millefolium Linda E. Watson 1996-5-17 96 -1 San Mateo In Pescadero State Beach on CA1, just south of San Gregorio. Comment
  JROH457  Achyrachaena mollis John H. Thomas 1955-5-6 4981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH465  Achyrachaena mollis John H. Thomas 1976-4-30 18101 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH466  Achyrachaena mollis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC29100  Achyrachaena mollis David D. Keck 1932-5-6 1484 San Mateo Hills just west of Millbrae Highlands 120 Comment
  RSA416306  Achyrachaena mollis D. D. Keck 1932-5-6 1489 San Mateo 4 miles west of Burlingame, at junction of Burlingame road and Skyline Boulevard. Comment
  JROH2058  Acmispon americanus var. americanus D. E. Breedlove 1971-5-31 19343 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  OBI13045  Acmispon americanus var. americanus Lewis S. Rose 1964-9-5 64071 San Mateo Emerald Lake, W of Redwood City 244 Comment
  SEINET957844  Acmispon brachycarpus A. D. E. Elmer 1903-1 3698 San Mateo Leland Stanford universoty. Belmont. Comment
  JROH2068  Acmispon glaber var. glaber G. H. Mallory 1919-7-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15213  Acmispon wrangelianus Toni Corelli 2012-4-13 800 San Mateo Pigeon Point Light Station, north of light station, bluff top west of Pigeon Point Road 8 Comment
  UC202840  Actaea rubra A. D. E. Elmer May, 1903 4703 San Mateo Butano Creek Comment
  SEINET10573362  Actaea rubra Ernest A. McGregor McGregor s.n. San Mateo Santa Cruz Mountain Peninsula Comment
  POM148958  Actaea rubra subsp. arguta A. D. E. Elmer 1903-5-1 4703 San Mateo Butano Creek. Comment
  CAS-BOT-BC29292  Adenocaulon bicolor H. L. Mason 1921-7-1 s.n. San Mateo Butano Creek Comment
  CAS-BOT-BC139959  Adenostoma fasciculatum George Oberlander 1949-6-25 234 San Mateo Sawyer Ridge Comment
  SEINET191610  Adenostoma fasciculatum Lewis S. Rose 1941-6-12 41270 San Mateo Hills of Redwood City Emerald Lake. 122 Comment
  JROH3584  Adenostoma fasciculatum var. fasciculatum Richard L. Garber 1971-7-13 40 San Mateo Jasper Ridge Biological Preserve, Stanford University 165 Comment
  RSA85065  Adenostoma fasciculatum var. fasciculatum D. D. Keck 1932-5-25 1781 San Mateo Hills 2 miles W of Belmont Comment
  UCSB18581  Adiantum jordanii Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 91 Comment
  CAS-BOT-BC202667  Aesculus californica Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC202668  Aesculus californica Phillip C. Wheeler 1965-5-12 s.n. San Mateo San Bruno Mountain. Canyon adjacent to Sierra Point Comment
  UC206220  Agoseris apargioides var. apargioides Katharine Brandegee 1917-6-15 San Mateo Moss Beach Moss Beach Comment
  SEINET7076092  Agoseris apargioides var. eastwoodiae A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Longitude, UTM Zone 10, 551863mE, 4121109mN). [GPS Coordinate: WGS84/NAD83]. Comment
  SD30732  Agoseris grandiflora Edith A. Purer 1933-6-4 3655 San Mateo Spring Valley Lakes Comment
  CAS-BOT-BC22977  Agoseris grandiflora var. grandiflora Ned Cahill 1974-5-30 326 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UC202773  Agoseris grandiflora var. grandiflora A. D. E. Elmer 1903-4-1 4490 San Mateo Crystal Springs Lake Crystal Springs Lake Comment
  CAS-BOT-BC46172  Agoseris heterophylla W. R. Dudley 1906-5-13 s.n. San Mateo S.W. of San Mateo Comment
  CAS-BOT-BC15239  Agoseris hirsuta Josephine D. Randall 1907-11-9 s.n. San Mateo Alpine road to Black Mountain Comment
  RSA18496  Agoseris hirsuta C. B. Wolf 1927-7-14 624 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  CAS-BOT-BC376133  Agrostis Ricardo Villasenor, Jr. 1993-7-1 s.n. San Mateo San Francisco International Airport, west of Hwy. 101 Comment
  POM226850  Agrostis avenacea Henry E. Wreser 1932-6-4 s.n. San Mateo Black Mountain Road. Hillsborough Hills. Near Burlingane. 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
  CAS-BOT-BC210070  Agrostis capillaris Peter Rubtzoff 1978-7-8 9223 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Upper part of East Fork Colma Creek Canyon area. Comment
  JROH4779  Agrostis capillaris John Rawlings 2009-6-17 1045 San Mateo Jasper Ridge Biological Preserve, Stanford University; seven yards from paved road in middle of the blocked-off dirt path leading to Causeway Bridge 105 Comment
  UCD164198  Agrostis capillaris Peter Rubtzoff 1978-7-8 9223 San Mateo 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 area. Comment
  SJSU15843  Agrostis densiflora John Rawlings, Toni Corelli 2014-8-13 1205 San Mateo Coastal bluff just west of Hwy 1, north of Pomponio State Beach 36 Comment
  UC1153947  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo along State Hwy 1 ca 5-6 mi s San Francisco (bluffs above sea) Comment
  UC143951  Agrostis densiflora Dr. E. B. Copeland 1903-8-13 3308 San Mateo Montara Point Comment
Read comments
Nov 29 2009
  UCD37960  Agrostis exarata Beecher Crampton 1962-6-11 6498 San Mateo San Mateo County, northern city limits of Pacifica, along State Highway 1, just southwest of its junction with Skyline Boulevard. Comment
  CAS-BOT-BC139459  Agrostis hallii Elizabeth McClintock; Paul Reeberg 1989-6-1 s.n. San Mateo San Bruno Mountains. Juncus Ravine. 182 Comment
  CAS-BOT-BC139461  Agrostis hallii Margaret A. Barry 1937-6-22 177 San Mateo Coal Mine Ridge. Comment
  JROH4790  Agrostis pallens John Rawlings 2005-5-25 1039 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just inside Escobar gate south of Road F and east of the gate near the fenceline. 160 Comment
  JROH4792  Agrostis pallens John Rawlings 2010-6-23 1104 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along fenceline 150 yards downhill from Escobar Gate. 157 Comment
  CAS-BOT-BC138651  Agrostis stolonifera Ira L. Wiggins 1980-8-29 22259 San Mateo Lower north bank of San Francisquito Creek, ca. 150 m. upstream from Pope Street bridge, Menlo Park. Comment
  JROH4806  Agrostis stolonifera John Rawlings 2008-7-23 1046 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry creek bed of San Francisquito Creek, about 200 yards downstream from the Low Flow Crossing. 95 Comment
  JROH4810  Agrostis stolonifera John Rawlings 2009-7-23 1080 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy bed of San Francisquito Creek near Dennis Martin site marker. 71 Comment
  JROH4156  Ailanthus altissima John H. Thomas 1980-11-18 20172 San Mateo Jasper Ridge Biological Preserve, Stanford University 98 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
  RSA195578  Aira caryophyllea John H. Thomas 1966-4-22 11570 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC138232  Aira caryophyllea var. caryophyllea A. D. E. Elmer 1903-5-1 4705 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC138242  Aira caryophyllea var. caryophyllea John H. Thomas 1955-4-6 4845 San Mateo San Bruno Mountain just north of South San Francisco. 91 Comment
  CAS-BOT-BC138247  Aira caryophyllea var. caryophyllea Le Roy Abrams 1902-5-4 2405 San Mateo Woodside. Comment
  CAS-BOT-BC138248  Aira caryophyllea var. caryophyllea W. R. Dudley 1906-5-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Hills southwest of San Mateo. Comment
  RSA128834  Alisma triviale Roxana S. Ferris 1920-9-3 2045 San Mateo Second Mud Lake, Coal Mine Ridge, Santa Cruz Mtns. Comment
  JROH5959  Allium amplectens John Rawlings 2017-6-6 2100 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine near ridge crest at NW terminus of Serpentine prairie (Area C). 177 Comment
  SEINET12049324  Allium amplectens H. L. Mason 1921-1 s.n. San Mateo Jasper Ridge Comment
  CAS-BOT-BC467294  Allium dichlamydeum Philip C. Wheeler 1965-5-8 s.n. San Mateo Sierra Point Comment
  CAS-BOT-BC132030  Allium peninsulare var. franciscanum L. R. A. 1902-5-4 2411 San Mateo Woodside Comment
  CAS-BOT-BC474301  Allium unifolium Philip C. Wheeler 1965-5-18 s.n. San Mateo Upper Colma Canyon near creek Comment
  JROH1328  Alnus rhombifolia John H. Thomas 1976-10-16 18428 San Mateo Jasper Ridge Biological Preserve, Stanford University; along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fire place ruins downstream Comment
  CAS-BOT-BC169343  Alnus rubra George Oberlander 1950-3-11 454 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve Comment
  CAS-BOT-BC169345  Alnus rubra W. R. Dudley 1894-3-26 s.n. San Mateo Along San Gregorio Creek below town. Santa Cruz Penisula Comment
  SEINET10919408  Alnus rubra LeRoy R. Abrams Abrams s.n. San Mateo Near Rescadero on road to Half-Moon Bay. Santa Cruz Mountain Peninsula. Comment
  LA206319  Alopecurus saccatus D. Keck; 1932-5-6 1472 San Mateo Burlingame, N city limits Comment
  SBBG45023  Ambrosia chamissonis L. S. Rose 1935-9-29 35653 San Mateo Granada 3 Comment
  SD39990  Ambrosia chamissonis Edith A. Purer 1932-7-18 4011 San Mateo Half Moon Bay on sand dunes Comment
  UC1543058  Ambrosia chamissonis Donald G. Nelson 1938-7-28 579 San Mateo Moss Beach Comment
  CAS-BOT-BC44929  Ambrosia chamissonis Lewis S. Rose 1935-9-29 35653 San Mateo Granada 3 Comment
  RSA416938  Ambrosia chamissonis var. chamissonis D. D. Keck 1931-10-5 1285 San Mateo 1 mile north of Salada Beach, 200 meters from the ocean. Comment
  POM87791  Ambrosia psilostachya L. R. Abrams 1902-9-21 2992 San Mateo Crystal Lake between the Mts. 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
  JROH3597  Amelanchier utahensis Ruth Porter 1999-5-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; between lake and fire road E Comment
  CAS-BOT-BC136829  Amelanchier utahensis L. R. Abrams 1909-4-27 s.n. San Mateo San Mateo [Canon] Canyon, between Pulpit Rock and the forks of the Road Comment
  SEINET10517582  Ammophila arenaria Delzie Demaree 1933-7-27 Demaree 10441 San Mateo Sand dunes two miles south of Pigeon Point. Stabilizing moving dune areas. Comment
  JROH1338  Amsinckia intermedia John H. Thomas 1973-3-12 16499 San Mateo Jasper Ridge Biological Preserve, Stanford University; above lake Comment
  RSA0089685  Amsinckia intermedia G. Oberlander 1949-5-21 151 San Mateo Top of Cahill Ridge, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC222455  Amsinckia lunaris Alice Eastwood 1917-5-12 s.n. San Mateo San Bruno Hills Comment
  NY334934  Amsinckia lunaris A. A. Heller 1907-5-23 8555 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  CAS-BOT-BC344839  Anaphalis margaritacea Peter Rubtzoff 1978-9-16 9270 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JEPS17915  Anaphalis margaritacea Rimo Bacigalupi 1955-8-4 5448 San Mateo at, just n of Montara Point Lighthouse Montara Comment
  JEPS20539  Anaphalis margaritacea L. M. Newlon 1921-1-1 241 San Mateo bluffs between Mussel Rock and Salada Beach; Sharp Park Comment
  UC1125509  Anaphalis margaritacea G. E. Sindel 1935-7-30 315 San Mateo 3/4 mi n of Pomponio Creek; Santa Cruz Quad. 259 Comment
  CAS-BOT-BC45189  Anaphalis margaritacea R. E. Frenkel 1964-8-21 754 San Mateo On Spring Valley Ridge Road at the junction of Spring Valley Ridge and Whiting Ridge Roads, SFWD. 347 Comment
  CAS-BOT-BC391924  Anemone grayi H. L. Mason 1927-4-24 3698 San Mateo La Honda Comment
  CAS-BOT-BC221460  Angelica hendersonii H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach near Pescadero Comment
  CDA38223  Angelica hendersonii T. C. Fuller 1957-10-2 407 -57 San Mateo San Gregorio. 0 Comment
  JROH192  Angelica tomentosa John Hunter Thomas 1989-6-17 24776 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC140427  Angelica tomentosa var. tomentosa E. L. Greene 1903-6-30 3354 San Mateo Pacific Coast, Crystal Springs Lake Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  CAS-BOT-BC273180  Anisocarpus madioides David D. Keck 1932-5-11 1497 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtns. 230 Comment
  JEPS13142  Anthemis cotula W. L. Jepson 1928-7-11 12939 San Mateo Redwood City 3 Comment
  JROH508  Anthemis cotula John Hunter Thomas 1982-7-2 21053 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  CAS-BOT-BC344841  Anthemis cotula Peter Rubtzoff s.n. San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH193  Anthriscus caucalis John H. Thomas 1966-4-22 11571 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH196  Anthriscus caucalis John H. Thomas 1973-4-14 16554 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH195  Anthriscus caucalis Richard L. Garber 1971-5-11 9 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA101012  Anthriscus caucalis G. Oberlander 1950-4-16 735 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve Comment
  JROH3605  Aphanes occidentalis John H. Thomas 1977-2-20 18465 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3606  Aphanes occidentalis John Hunter Thomas 1981-4-5 20269 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  JROH3610  Aphanes occidentalis John Hunter Thomas 1987-4-4 24170 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3612  Aphanes occidentalis John Hunter Thomas 1990-4-26 24815 San Mateo Jasper Ridge Biological Preserve, Stanford University. Path near Rattlesnake Rocks Comment
  CAS-BOT-BC261659  Aphanes occidentalis Peter Rubtzoff 1988-5-3 9917 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, near its crossing of the upper part of East Fork Colma Creek. Comment
  CAS-BOT-BC454493  Aphanes occidentalis Ned Cahill 1975-2-21 406 San Mateo Chapparal near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City Comment
  CAS-BOT-BC454495  Aphanes occidentalis H. A. Dutton 1900-3-11 s.n. San Mateo Woodside serpentine, Santa Cruz Pennisula Comment
  UC306538  Apiastrum angustifolium A. D. E. Elmer June, 1903 4461 San Mateo southern end of Crystal Springs Lake Crystal Springs Lake Comment
  SD71033  Aponogeton distachyos Peter Rubtzoff 1955-4-2 1767 San Mateo In a small pool near the road, Skyline Boulevard near the junction of Chinese Cemetery Road. (IPB 4/07) Comment
  CAS-BOT-BC405894  Aquilegia formosa Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Bitter-cherry Ridge. Comment
  POM270621  Aquilegia formosa var. truncata H. L. Mason 1927-4-23 3674 San Mateo Summit of Road betw La Honda and Bloomquists mill Comment
  CAS-BOT-BC17339  Arabis blepharophylla L. Constance; R. Bacigalupi; C. R. Bell 1951-3-25 3369 San Mateo Southeast side of Colma Canyon. 60 Comment
  JEPS90201  Arabis blepharophylla Dean W. Taylor 1988-3-16 9407 A San Mateo Santa Cruz Mountains, summit of San Bruno Mountain, along fire road 120 m e from summit parking lot San Bruno Mountain; Santa Cruz Mountains, San Bruno Mountain 371 Comment
  CAS-BOT-BC171636  Aralia californica Eric Walther 1919-7-4 s.n. San Mateo Woodside Comment
  CAS-BOT-BC128627  Arbutus menziesii Josephine D. Randall 1907-4-27 136 San Mateo King's Mt. Road - Santa Cruz Peninsula Comment
  CAS-BOT-BC128674  Arbutus menziesii Ned Cahill 1974-4-30 233 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi. westward from Redwood City. Comment
  UC762227  Arbutus menziesii R. F. Hoover 1941-2-12 4765 San Mateo nw of Saratoga Summit Comment
  UC876368  Arbutus menziesii E. W. Rust 1907-4-22 131 San Mateo vicinity of Stanford Unifersity (King's Mountain); Northern California, King's Mountain 274 Comment
  JROH5562  Arctostaphylos John Rawlings, Toni Corelli 2013-1-29 1110 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail to Hermit's Mine site. 195 Comment
  UC1212008  Arctostaphylos James Roof 1961-4-18 San Mateo mt. spur 1/4 mi ne summit; San Bruno Mountain 335 Comment
  CAS-BOT-BC24171  Arctostaphylos andersonii Gary D. Wallace 1974-12-28 1375 San Mateo Northern Santa Cruz Mtns. S of Upper Crystal Springs Res. along Skyline Blvd. 2.8 mimi N of jct. of King Mtn. Rd. oppos 640 Comment
  POM367227  Arctostaphylos andersonii L. S. Rose 1947-3-11 47028 San Mateo Kings Mountain. 609 Comment
  CAS-BOT-BC24169  Arctostaphylos andersonii W. R. Dudley 1902-6-1 s.n. San Mateo Woods between grenson's and moore's near Black Mt. Comment
  SEINET11984878  Arctostaphylos andersonii R. Gankin, Jaacov, J. B. 1965-1 384 San Mateo CA 35 (Skyline Blvd), 1.1 mi N of junction with CA 84 Comment
  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
  SEINET11987130  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I. 1980-1 3828 San Mateo Tilden Botanic Garden, Berkeley, originally from windswept San Bruno Mountain 305 Comment
  SEINET11989088  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I.; McClintock, E. 1981-1 4493 San Mateo Kamchatka Point, San Bruno Mt 320 Comment
  CAS-BOT-BC23503  Arctostaphylos crustacea Roxana S. Ferris 1918-3-27 738 San Mateo La Honda Road Comment
  CAS-BOT-BC23504  Arctostaphylos crustacea Josephine D. Randall 1906-3-9 137 San Mateo Road to King's Mt. Comment
  CAS-BOT-BC23510  Arctostaphylos crustacea Margaret A. Barry 1938-5-22 s.n. San Mateo Small patch on top of Coal Mine Ridge Comment
  UCD144585  Arctostaphylos crustacea subsp. crustacea Greg Escoto 2014-2-21 s.n. San Mateo San Pedro Valley Park, a county park located at 600 Oddstad Blvd. Along Hazelnut Trail. 152 Comment
  RSA70707  Arctostaphylos imbricata L. S. Rose 1951-3-13 51001 San Mateo San Bruno Hills. 304 Comment
  CAS-BOT-BC27159  Arctostaphylos montaraensis W. Knight; Irja Knight 1967-1-19 2056 San Mateo Montara Mt. 335 Comment
  UCD144586  Arctostaphylos montaraensis Greg Escoto 2014-2-21 s.n. San Mateo San Pedro Valley Park, a county park located at 600 Oddstad Blvd. Along Hazelnut Trail. 152 Comment
  UCD51754  Arctostaphylos montaraensis Roman Gankin 1966-5-17 740 B San Mateo On east-facing slopes of Montara Mountain. Comment
  SEINET11987328  Arctostaphylos montaraensis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4203 San Mateo Strybing Arboretum, San Fran., Golden Gate Park, orig. few yds NE of Pacific Rock on San Bruno Mt Comment
  SEINET11988204  Arctostaphylos montaraensis W. Knight, Raiche, R. 1982-1 4415 San Mateo Mantara Mountain 305 Comment
  RSA0042504  Arctostaphylos pacifica Gary D. Wallace 1975-12-26 1517 San Mateo San Bruno Mountains, east slope, near parking lot at top of Radio Road. 396 Comment
  CAS-BOT-BC44702  Arctostaphylos regismontana A. D. E. Elmer 1903-3-1 4537 San Mateo Kings Mt. Comment
  CAS-BOT-BC44742  Arctostaphylos regismontana J. H. Thomas 1949-3-29 2000 San Mateo Kings Mt. Rd. Comment
  POM132205  Arctostaphylos regismontana A. D. E. Elmer 1903-03 4537 San Mateo Kings Mountain. Comment
  POM87727  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain. Comment
  SEINET11988209  Arctostaphylos regismontana W. Knight, Raiche, R. 1982-1 4414 San Mateo Montara Mt 305 Comment
  CAS-BOT-BC44669  Arctostaphylos sensitiva George Oberlander 1950-4-2 521 San Mateo Southern Cahill Ridge Comment
  CAS-BOT-BC44671  Arctostaphylos sensitiva W. R. Dudley 1899-1-2 s.n. San Mateo On dry hills between Butano Cr. and Little Butano Cr. - Santa Cruz Mountain Peninsula Comment
  LA42311  Arctostaphylos tomentosa Lillian Lockwood; 1908-3-28 sn San Mateo Kings Mountain, near roadside 457 Comment
  SEINET11989293  Arctostaphylos tomentosa S. W. Edwards 1982-1 s.n. San Mateo Foothill Park near summit of SW ridge Comment
  HSC24032  Arctostaphylos tomentosa subsp. crustacea Mary Katherine Wicksten 1971-6-17 29 San Mateo Huddart Park, Zwierlein Trail Comment
  JEPS48592  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 580 San Mateo San Gregorio watershed Santa Cruz Mts. Comment
  JEPS48593  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 194 San Mateo San Gregorio watershed Santa Cruz Mts. (sw San Mateo Co.) Comment
  JEPS48594  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 543 San Mateo San Gregorio watershed Santa Cruz Mts. (sw San Mateo Co.) Comment
  JEPS48596  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 571 San Mateo San Gregorio watershed Santa Cruz Mts. (sw San Mateo Co.) Comment
  POM131601  Arctostaphylos tomentosa subsp. crustacea C. F. Baker 1902-3-18 328 San Mateo King's Mountain. Comment
  POM131770  Arctostaphylos tomentosa subsp. crustacea C. F. Baker 1902-5-10 817 San Mateo Kings Mountain. Comment
  RSA128497  Arctostaphylos tomentosa subsp. crustacea Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt. Comment
  RSA636849  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24647 San Mateo NW side of Montara Mtn. 150 Comment
  UC1137485  Arctostaphylos tomentosa subsp. rosei G. E. Sindel 1935-8-20 337 San Mateo 1/2 mi n Sierra Moreno; Santa Cruz Quadrangle Comment
  JEPS108602  Arctostaphylos uva-ursi J. Roof San Mateo San Bruno Mountain, Powerline Ridge Comment
  SJSU6464  Arctostaphylos uva-ursi S. H. Casey 1969-5-18 264 San Mateo Kamchatka Point, San Bruno Mt Comment
  RSA0077993  Arctostaphylos uva-ursi B. A. Stein 1981-2-22 421 San Mateo San Bruno Mountain, just E of summit. 396 Comment
  SEINET11987152  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 4055 San Mateo Tilden Botanic Garden, Berkeley, orig. from about 200 yds E of summit parking lot of San Bruno Mt Comment
  SEINET11987302  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4208 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from upper Cable Ravine, San Bruno Mts Comment
  SEINET11987482  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4200 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from Samoa Sand Spit Comment
  SEINET11987484  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4201 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt Comment
  SEINET11987154  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I. 1981-1 4054 San Mateo Tilden Botanic Garden, Berkeley, orig. from Kamchatka Point, San Bruno Mountain Comment
  CAS-BOT-BC47697  Armeria maritima subsp. californica W. R. Dudley 1896-4-17 s.n. San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC47705  Armeria maritima subsp. californica Ray H. Yanis 1951-5-12 99 San Mateo Pescadero 30 Comment
  CAS-BOT-BC47706  Armeria maritima subsp. californica J. H. Thomas 1963-8-4 10237 San Mateo Just north of Pigeon Point Light House Comment
  RSA18369  Armeria maritima subsp. californica Carl B. Wolf 1927-6-29 539 San Mateo South of Pebble Beach near Pescadero. Comment
  SBBG58493  Armeria maritima subsp. californica J. M. Tucker 1941-4-6 211 San Mateo roadside, Pigeon Point Comment
  SD88449  Armeria maritima subsp. californica Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay. Comment
  CAS-BOT-BC82513  Arnica discoidea L. R. A. 1902-5-20 2464 San Mateo [King's] Kings Mountain Comment
  HSC23890  Arnica discoidea Mary Katherine Wicksten 1971-6-16 32 San Mateo Bank at Huddart Park, by Werder Flat Comment
  CAS-BOT-BC84884  Artemisia californica Walter Knight; Irja Knight 1963-7-14 297 San Mateo San Bruno Mountain, ridge above Buckeye Canyon Comment
  RSA116787  Artemisia californica L. R. Abrams 1902-12-23 3098 San Mateo Jasper Ridge, Searsville Comment
  RSA94535  Artemisia californica F. W. Peirson 1925-9-13 6429 San Mateo Rockaway beach. Comment
  OBI49162  Artemisia douglasiana Lewis S. Rose 1938-8-18 38232 San Mateo San Mateo 30 Comment
  CAS-BOT-BC93934  Artemisia douglasiana Josephine D. Randall 1907-6-29 53 San Mateo Santa Cruz Peninsula, Portola Road Comment
  HSC24037  Artemisia douglasiana Mary Katherine Wicksten 1971-7-12 169 San Mateo Huddart Park; Road bank of King's Mountain Rd. below Archery Flat Comment
  CAS-BOT-BC93637  Artemisia pycnocephala Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains - Reservoir Hill, west-facing slope 137 Comment
  RSA1948  Artemisia pycnocephala C. B. Wolf 1930-11-5 1806 San Mateo 4 mi. S of Pescadero. 8 Comment
  SEINET11853520  Artemisia pycnocephala E. A. Purer 1933-1 5387 San Mateo 2 mi S of Pigeon Point Comment
  SACT000356  Arundo donax Malcolm Nobs, S. Smith 1949-8-25 San Mateo on bank in marsh, 6-12 feet tall, with typha, scirpus, potameton, polygonum, and lactuca. Brackish marsh Comment
  UC141855  Asarum caudatum Dr. E. B. Copeland 1903-5-9 3250 San Mateo Mountains beyond Pescadero Creek 304 Comment
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Oct 16 2021
  POM165734  Asarum caudatum E. B. Copeland 1903-5-9 s.n. San Mateo Mountains beyond Pescadero Creek 305 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
  RSA184926  Aster chilensis L. S. Rose 1966-8-15 66083 San Mateo Pillar Point 5 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
  UCR254764  Aster chilensis Peter Rubtzoff, Roman Gankin 1975-9-11 8377 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC186766  Astragalus gambelianus H. A. Dutton 1900-3-11 s.n. San Mateo Woodside Comment
  SD48960  Astragalus gambelianus Louis E. James 1947-4-11 1758 San Mateo Hills back of Redwood City. Comment
  UC903409  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo hills back Redwood City; hills back of Redwood City Comment
  RSA90716  Astragalus nuttallii F. W. Peirson 1925-9-13 6424 San Mateo Rockaway Beach Comment
  UC1128883  Astragalus nuttallii var. nuttallii G. E. Sindel 1935-7-26 300 San Mateo 2 1/2 mi nnw Pescadero; Santa Cruz Quad., nnw of Pescadero Comment
  CAS-BOT-BC177974  Astragalus nuttallii var. virgatus C. F. Leitholdt 1894-7-1 s.n. San Mateo Pescadero Comment
  RSA498284  Astragalus nuttallii var. virgatus E. A. Purer 1933-8-13 5405 San Mateo Santa Clara Valley near Baden Station. Comment
  CAS-BOT-BC66142  Athyrium filix-femina var. cyclosorum John Thomas Howell 1926-10-9 2218 San Mateo Near Lake San Andreas Comment
  POM143746  Athysanus pusillus C. F. Baker 1902-4-6 456 San Mateo Crystal Springs Lake. Comment
  SD40199  Atriplex leucophylla Edith A. Purer 1933-7-27 5349 San Mateo Pigeon Point. Comment
  UC1191296  Atriplex triangularis Malcolm A. Nobs, S. Galen Smith 1949-8-26 1595 San Mateo marshes at mouth Pescadero Creek mouth Pescadero Creek Comment
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Feb 28 2011
  CAS-BOT-BC146123  Avena barbata Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Above the quarry. Comment
  CAS-BOT-BC146125  Avena barbata Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon. Comment
  CDA31516  Avena barbata T. C. Fuller 1969-6-12 18549 San Mateo Ca. 3 km NE of Pescadero, on south facing slope of hillside pasture 0 Comment
  SJSU16016  Avena barbata John Rawlings, Ken Hickman 2016-5-26 1812 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH4846  Avena fatua W. Lennihan 1990-4-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across parking lot from picnic tables. 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
  JROH5975  Avena fatua John Rawlings 2017-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Scattered along brick path from visitor parking lot to field station 121 Comment
  JROH2  Azolla John Hunter Thomas 1980-11-12 20167 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  CAS-BOT-BC98700  Baccharis douglasii John Thomas Howell 1926-10-9 2217 San Mateo Near Lake San Andreas Comment
  SEINET3386136 Image available Baccharis douglasii David D. Keck 1931-9-27 1271 San Mateo Dumbarton Bridge. Comment
  CAS-BOT-BC99517  Baccharis pilularis Carl B. Wolf 1930-11-5 1807 San Mateo 4 miles south of Pescadero 7 Comment
  CAS-BOT-BC99519  Baccharis pilularis John H. Thomas 1976-10-7 18397 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south 30 Comment
  CAS-BOT-BC99521  Baccharis pilularis Ned Cahill 1974-10-8 376 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC99528  Baccharis pilularis P. C. Everett 1934-8-19 6068 San Mateo Pescadero 198 Comment
  CAS-BOT-BC99532  Baccharis pilularis A. D. E. Elmer 1903-2-1 s.n. San Mateo Portola Comment
  OBI5968  Baccharis pilularis Carl B. Wolf 1930-11-5 1807 San Mateo 4 mi S of Pescadero. Humid Transition zone Comment
  POM350433  Baccharis pilularis Edith A. Purer 1932-7-18 4022 San Mateo Near Pigeon Point Comment
  POM350434  Baccharis pilularis L. S. Rose 1936-8-16 36712 San Mateo Granada 15 Comment
  RSA136310  Baccharis pilularis John H. Thomas 1949-10-16 1144 San Mateo Along sandstone bluffs, just north of outlet of San Gregorio Creek Comment
  UC942900  Baccharis pilularis Lewis S. Rose 1949-9-20 49181 San Mateo Sharp Park Comment
  UCR240609  Baccharis pilularis T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3527 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
  RSA93165  Baccharis pilularis F. W. Peirson 1925-9-13 6425 San Mateo Rockaway beach. Comment
  LA203030  Baccharis pilularis subsp. pilularis C. B. Wolf; 1934-11-9 6240 San Mateo 200 yds. S of Pigeon Point Lighthouse 15 Comment
  CAS-BOT-BC16618  Barbarea orthoceras Javier Penalosa 1963-3-9 2697 San Mateo San Bruno Mountains. Ravine 0.5 mile east of 1314 foot summit. 304 Comment
  CAS-BOT-BC16627  Barbarea orthoceras Fred Hemphill 1973-4-22 736 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16629  Barbarea orthoceras Peter H. Raven 1951-3-12 2744 San Mateo Summit ridge San Bruno Mountains. Comment
  JROH1454  Barbarea orthoceras John Hunter Thomas 1989-4-20 24643 San Mateo Jasper Ridge Biological Preserve, Stanford University; to below the dam Comment
  RSA788847  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7962 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  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
  JROH3916  Bellardia trixago John H. Thomas 1975-6-5 17930 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lowflow crossing Comment
  JROH3923  Bellardia trixago John Hunter Thomas 1985-5-2 23582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1543196  Bellis perennis Donald G. Nelson 1940-7-7 696 San Mateo on road from Half Moon Bay to San Mateo Pilarcitos Creek 76 Comment
  CAS-BOT-BC75881  Berberis pinnata Art Menzies; Barbara Menzies 1965-3-14 s.n. San Mateo San Bruno Mountain. Reservoir Hill. Comment
  CAS-BOT-BC100316  Blennosperma nanum var. robustum Walter Knight; Irja Knight 1965-4-25 1043 San Mateo Owl's Canyon Comment
  CAS-BOT-BC100320  Blennosperma nanum var. robustum A. D. E. Elmer 1903-4-1 4521 San Mateo San Bruno Hills Comment
  CAS-BOT-BC145404  Brachypodium distachyon John Thomas Howell 1971-4-12 s.n. San Mateo Butano State Park. Comment
  JROH4859  Brachypodium distachyon W. Lennihan 1990-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Escobar cutoff (Trail 15), turn right just before Quercus douglasii and weather station (Trail 16), 15 yards on right of path. 191 Comment
  CDA20475  Brachypodium sylvaticum J. Beall 2003-12-12 PDR 1387963 San Mateo San Francisco Bay Area; Along Hwy 84 at Grandview Dr. 0 Comment
  CDA37735  Brachypodium sylvaticum Breckenridge/Filippini 2010-7-22 s.n. San Mateo Woodside; across a number of properties. 0 Comment
  CAS-BOT-BC29992  Brassica juncea Fred Hemphill 1973-5-14 814 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC36794  Brassica rapa John H. Thomas 1965-4-29 10605 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH1464  Brassica rapa John H. Thomas 1975-6-5 17931 San Mateo Jasper Ridge Biological Preserve, Stanford University; just outside of gate Comment
  CAS-BOT-BC36793  Brassica rapa John H. Thomas 1971-10-27 16027 San Mateo Near intersection of Alpine Road and Interstate Highway 280, behind the Stanford Campus. Comment
  JROH4871  Briza maxima John Hunter Thomas 1987-5-15 24284 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old picnic area above low flow crossing Comment
  JROH4875  Briza maxima W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. After crossing dam, to left, on right side of path just before going downhill. Comment
  UCD57153  Briza maxima Anonymous 1991-5-27 24 San Mateo Along Lake Merced, in Daly City. Comment
  CAS-BOT-BC145329  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  CAS-BOT-BC145337  Briza minor Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillcrest Boulevard, South San Francisco. Comment
  CAS-BOT-BC145338  Briza minor Phillip C. Wheeler 1965-5-11 s.n. San Mateo San Bruno Mountains. Pig Ranch Ravine. Comment
  CAS-BOT-BC145342  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  RSA623794  Briza minor Ralph Hopping 1929-4-27 107 San Mateo Jasper Ridge. Stanford Campus. Comment
  SEINET182863  Brodiaea capitata John Campbell 1925-3-27 San Mateo Burlingame Comment
  UCSB841  Brodiaea coronaria Walker, Clifford 1954-4-20 San Mateo Corner of Jefferson and Canada Rds. Comment
  JROH4581  Brodiaea elegans subsp. elegans John H. Thomas 1973-6-10 16808 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4585  Brodiaea elegans subsp. elegans John Hunter Thomas 1986-6-7 24088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC484346  Brodiaea elegans subsp. elegans J. H. Thomas 1960-6-8 8774 A San Mateo Dry roadbank between Stanford and Searsville along San Hill road Comment
  CAS-BOT-BC483171  Brodiaea terrestris subsp. terrestris Lewis S. Rose 1970-4-8 70024 San Mateo Black Mountain west of San Mateo 121 Comment
  CAS-BOT-BC483186  Brodiaea terrestris subsp. terrestris Philip C. Wheeler 1965-6-19 s.n. San Mateo Fire trail west of quarry, San Bruno Mountain Comment
  CDA7725  Bromus carinatus D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  POM286978  Bromus carinatus Lyman Benson 1930-4-17 2079 a San Mateo Stanford University. Corte Madera Creek. 122 Comment
  POM319876  Bromus carinatus Barbara Shervanick 1973-4-1 807 San Mateo San Bruno Mt. at first summit at end of Crocker Rd. Comment
  CAS-BOT-BC148977  Bromus carinatus var. carinatus W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Crystal Springs Lake. Comment
  CAS-BOT-BC148978  Bromus carinatus var. carinatus John Thomas Howell 1960-4-20 35210 A San Mateo In garden of Frances Payne Stickney, Hillcrest Road, San Mateo. Comment
  CAS-BOT-BC148992  Bromus carinatus var. carinatus John H. Thomas 1961-5-14 9374 B San Mateo San Francisco Watershed Reserve. Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. 152 Comment
  JROH4893  Bromus carinatus var. carinatus John H. Thomas 1970-4-29 15618 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET943617  Bromus carinatus var. carinatus Robert A. Norris 1984-1 4656 San Mateo Blue Blossom Hill, San Bruno Mountains 365 Comment
  CAS-BOT-BC148763  Bromus carinatus var. marginatus V. F. Hesse 1964-5-26 3209 San Mateo Near (south of) Pigeon Point. 15 Comment
  CAS-BOT-BC148765  Bromus carinatus var. marginatus Walter Knight; Irja Knight 1964-4-13 s.n. San Mateo San Bruno Mountain. San Bruno Mountain Power Line Ridge. 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-BC155840  Bromus catharticus var. elatus Dale Beltz 1956-5-23 s.n. San Mateo Belmont. Comment
  CAS-BOT-BC155726  Bromus diandrus Javier Penalosa 1963-3-30 2765 a San Mateo San Bruno Mountains. Guadalupe Valley. 30 Comment
  CDA1794  Bromus diandrus Wm. Davis 1958-5-13 San Mateo Joos Nursery, Colma 0 Comment
  JROH4928  Bromus hordeaceus Winkie Lennihan 1990-4-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along north side of Rd. F in grassy area east of the serpentine contact 161 Comment
  UCD58780  Bromus hordeaceus L. Whitney 1935-3-20 s.n. San Mateo Bayshore Highway--10 miles south of Cliff House, San Francisco. Comment
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Nov 12 2011
  RSA790273  Bromus hordeaceus subsp. hordeaceus Peter Rubtzoff 1976-6-13 8634 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH4938  Bromus laevipes W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern draw, 40 yards down. Comment
  UCD58971  Bromus madritensis Beecher Crampton 1962-6-11 6485 San Mateo 5 miles west of Belmont, junction Ralston Ave. and Skyline Blvd. Comment
  CDA1797  Bromus mollis E. L. Labadie 1941-4-13 San Mateo Bayshore Freeway, Coyote Point. 0 Comment
  CAS-BOT-BC161752  Bromus rubens R. E. Frenkel 1964-5-26 511 San Mateo On Portola Ridge Road, SFWD, 0.7 mile north of Sawyer Ridge Road. 320 Comment
  POM277332  Bromus vulgaris Lyman Benson 1937-7-15 8452 San Mateo Upper San Francisquito Creek. Santa Cruz Mt. Range. 244 Comment
  RSA119336  Bromus vulgaris S. S. Tillett, I. Sternback 1956-6-24 534 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  UCSB370  Bromus vulgaris Kraebel, C. 1932-7-24 San Mateo Cahill Ridge Comment
  SD129649  Cakile maritima Donald G. Nelson 1938-7-28 581 San Mateo Moss Beach Comment
  CAS-BOT-BC36946  Cakile maritima var. maritima Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountains. Point San Bruno. Comment
  CAS-BOT-BC36962  Cakile maritima var. maritima Daniel Cohen 1953-5-9 94 San Mateo Near mouth of Pescadero Creek. Comment
  CAS-BOT-BC185139  Calamagrostis nutkaensis John H. Thomas 1961-8-27 9708 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC185141  Calamagrostis nutkaensis Elizabeth McClintock 1967-6-24 s.n. San Mateo San Bruno Mountain. Top of mountain between radio stations on Radio Road. Comment
  CAS-BOT-BC185150  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5033 San Mateo San Pedro. Comment
  JROH5602  Calamagrostis rubescens John Rawlings 2014-3-18 1208 San Mateo Jasper Ridge Biological Preserve, Stanford University; near jct of and between trails 5 and 2. 83 Comment
  UC1084413  Calandrinia ciliata G. Thomas Robbins 1937-4-11 105 San Mateo grassy meadow near Spring Valley Lakes (along road to Woodside) Comment
  UC635366  Calandrinia ciliata Herbert L. Mason 1927-4-23 3691 San Mateo roadside between La Honda and Pescadero Creek Comment
  RSA116800  Callitriche heterophylla subsp. bolanderi W. R. Dudley 1904-4-23 s.n. San Mateo Santa Cruz Mtn. Peninsula: Pool along new Grade Road Black Mt. Comment
  JROH1638  Callitriche marginata D. E. Breedlove 1971-5-3 19323 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Francisquito Creek, 500 yards below Searsville Dam Comment
  RSA116749  Callitriche trochlearis W. R. Dudley 1904-4-23 s.n. San Mateo Santa Cruz Mtn Peninsula, crow foot pond on alpine road opposite the Fitzpatrick place. Comment
  RSA292631  Calochortus albus Lyman Benson 99 San Mateo Searsville ridge, Stanford University, Santa Cruz Mtns, little San Francisquito Cr. 152 Comment
  CAS-BOT-BC492217  Calochortus albus Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC492218  Calochortus albus David D. Keck 1932-5-13 1778 San Mateo Along Woodsideon La Honda road, east slope of Santa Cruz Mtns. Comment
  CAS-BOT-BC492223  Calochortus albus Elsie Zeile 1909-5-20 s.n. San Mateo Burlingame Comment
  CAS-BOT-BC492225  Calochortus albus A. D. E. Elmer 1903-5-1 4846 San Mateo San Mateo Comment
  CAS-BOT-BC491979  Calochortus luteus Otto M. Sokol 1953-5-29 113 San Mateo Near Sharon Estate, along Sand Hill Road Comment
  CAS-BOT-BC491991  Calochortus luteus Marion Ownbey; Ruth P. Ownbey 1938-7-7 1699 San Mateo Santa cruz Mts., above Searsville Lake Comment
  HSC23982  Calochortus luteus Mary Katherine Wicksten 1971-6-17 40 San Mateo Huddart Park, grassy hill above Oak Area Comment
  CAS-BOT-BC496826  Calochortus tolmiei W. R. Dudley 1895-6-6 s.n. San Mateo Woods near Pescadero Creek Comment
  SJSU10003  Calochortus tolmiei L. S. Chan 1955-6-4 123 San Mateo Kings Mt Rd 1.5 mi W of woodside 243 Comment
  CAS-BOT-BC132540  Calochortus umbellatus M N. Paulson 1915-4-10 s.n. San Mateo Kings Mountain Comment
  POM263769  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo Emerald Lake, hills west of Redwood City. 120 Comment
  UC306753  Calystegia purpurata A. D. E. Elmer June, 1903 4299 San Mateo Pescadero Comment
  CAS-BOT-BC224653  Calystegia purpurata subsp. purpurata Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  CAS-BOT-BC224655  Calystegia purpurata subsp. purpurata Theo. C. Zschokke 1903-7-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Goat Ranch Road, Corte de [Corte] Madera Cr. Comment
  CAS-BOT-BC224663  Calystegia purpurata subsp. purpurata Fred Hemphill 1973-4-8 605 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC224665  Calystegia purpurata subsp. purpurata Theo. C. Zschokke 1903-7-10 s.n. San Mateo Goat Ranch Road, Corte de [Corte] Madera Creek Comment
  JROH1840  Calystegia purpurata subsp. purpurata John H. Thomas 1969-6-4 15112 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1842  Calystegia purpurata subsp. purpurata Toni Corelli 2010-5-19 369 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 8 129 Comment
  SD38590  Calystegia soldanella Edith A. Purer 1933-7-27 5377 San Mateo 2.0 miles south of Pigeon Point. Comment
  CAS-BOT-BC436440  Calystegia subacaulis George Oberlander 1950-4-16 739 San Mateo San Francisco Watershed Reserve, south boundary Comment
  CAS-BOT-BC224349  Calystegia subacaulis subsp. subacaulis A. D. E. Elmer 1903-6-1 4826 San Mateo Crystal Springs Lake Comment
  SEINET7040214  Camissonia brevipes A. G. Vestal 1962-3-26 s.n. San Mateo Laguna Salada. San Francisco South Quadrangle UTM Zone 10, 545384mE, 4164305mN. Comment
  UCR143018  Camissonia cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1933-7-27 5388 San Mateo Pacific Coast, two miles south of Pigeon Point 30 Comment
  POM32101  Camissonia graciliflora L. R. Abrams 1917-3-15 6396 San Mateo Woodside - Crystal Springs Road, 2 miles north of Woodside Comment
  POM49683  Camissonia ovata L. R. Abrams 1902-4-6 2316 San Mateo Portola Comment
  SD38643  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1934-8-14 5388 San Mateo 2.0 miles south of Pigeon Point. Comment
  SEINET10462936  Campanula prenanthoides Rose 1933-7-25 Rose 33311 San Mateo Kings Mountain. Comment
  SEINET10463189  Campanula prenanthoides Gray 1872-1 GRAY s.n. San Mateo SANTA CRUZ REDWOODS Comment
  CAS-BOT-BC37161  Capsella bursa-pastoris David D. Keck 1932-2-16 1378 San Mateo Portola. Comment
  SEINET5542273  Capsella bursa-pastoris H. S. Gentry 1931-1 77 San Mateo 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC37656  Cardamine californica W. R. Dudley 1893-4-1 s.n. San Mateo Santa Cruz Peninsula. Ravine near La Honda. Comment
  CAS-BOT-BC37685  Cardamine californica David D. Keck 1393 San Mateo Santa Cruz Mountains. La Honda road above Searsville Lake. Comment
  CAS-BOT-BC37686  Cardamine californica Everett Winder Rust 1907-4-27 125 San Mateo Kings Mountain. Comment
  JROH1481  Cardamine californica D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH1486  Cardamine californica John Hunter Thomas 1987-4-7 24176 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC136067  Cardamine californica var. sinuata C. F. Baker 1902-4-12 501 San Mateo La Honda Comment
  CAS-BOT-BC37982  Cardamine oligosperma Walter Knight; Irja Knight 1965-3-14 939 San Mateo San Bruno Mountain. Romanzoffia Ravine. Comment
  CAS-BOT-BC281710  Carduus pycnocephalus Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC17853  Carex amplifolia Lewis S. Rose 1933-6-23 33250 San Mateo Kings Mountain. Comment
  NY25686  Carex amplifolia L. S. Rose 1933-6-23 33250 San Mateo Kings Mountain Comment
  SEINET7484300 Image available Carex barbarae Peter F. Zika 2010-1 24798 San Mateo Pescadero Road, c. 1 mile SE of Route 1 10 Comment
  CAS-BOT-BC19325  Carex barbarae Walter Knight; Irja Knight 1965-4-15 s.n. San Mateo San Bruno Mountain. Mouth of Colma Canyon. Comment
  CAS-BOT-BC19326  Carex barbarae Walter Knight; Irja Knight 1965-4-24 s.n. San Mateo San Bruno Mountain. East end of mountains adjacent to Frontage Road next to US 101 Highway at north city limits of SSF. Comment
  CAS-BOT-BC19545  Carex bolanderi W. R. Dudley 1899-5-14 s.n. San Mateo Sant Cruz Mountain Peninsula. Ravine west of Upper San Mateo Creek. Comment
  SJSU2296  Carex brevicaulis C. W. Sharsmith 1950-4-16 6625 San Mateo coastal bluff, Pescadero Point near Pescadero Comment
  CAS-BOT-BC176396  Carex densa Peter Rubtzoff 1975-5-21 7976 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC18929  Carex densa A. D. E. Elmer 1903-6-1 4428 San Mateo Crystal Springs Lake. Comment
  POM230443  Carex densa J. T. Howell, Alice Eastwood 1937-5-7 4328 San Mateo Visatacion Valley Comment
  SEINET10649935  Carex dudleyi Lewis S. Rose 1939-4-14 Rose 39064 San Mateo South San Francisco. 15 Comment
  CAS-BOT-BC227481  Carex harfordii Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. In the main drainage area of the Shearwater area, west of Bayshore Boulevard 76 Comment
  RSA788835  Carex harfordii Peter Rubtzoff, Barbara Deutsch, James Roof 1980-5-3 9437 San Mateo The Edward P. Lee Memorial Site, at the bottom of canyon, below the Nine Fern Rock. Comment
  SEINET10711654  Carex obnupta Lewis S. Rose 1936-6-10 Rose 36317 San Mateo Chinese Cemetery, E. of Baden. 61 Comment
  CAS-BOT-BC118332  Carex praegracilis W. R. Dudley 1906-6-12 s.n. San Mateo In meadow on Mt. side W of Trippstore, Woodside. Comment
  POM193944  Carex serratodens Le Roy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  SJSU16013  Carex serratodens John Rawlings, Ken Hickman 2016-5-26 1813 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  RSA88835  Carex subbracteata Alice Eastwood, John Thomas Howell, J. W. Stacey 1938-4-24 5245 San Mateo Half Moon Bay. Comment
  SJSU15906  Carex subbracteata John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1731 B San Mateo Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  RSA364769  Carex subbracteata L. S. Rose 1939-4-14 39063 San Mateo South San Francisco. 15 Comment
  RSA788836  Carex subbracteata Peter Rubtzoff 1978-3-18 9172 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET10750022  Carex subbracteata Alice Eastwood, John Thomas Howell; J. W. Stacey 1938-4-24 Eastwood 5245 San Mateo Half Moon Bay. Comment
  UC750651  Carex subbracteata Lewis S. Rose 1939-4-14 39063 San Mateo South San Franciso 15 Comment
  CAS-BOT-BC116833  Carex subbracteata var. subbracteata Roxana S. Ferris 1921-5-29 5197 San Mateo Roadside ditch near Arroyo de los Frijoles. Comment
  RSA119340  Carex tumulicola S. S. Tillett, I. Sternback 1956-6-25 543 San Mateo On Middleton property S of road to Portola State Park, just before entrance; in secondary redwood forest. 396 Comment
  CAS-BOT-BC227609  Carex tumulicola Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. Shearwater area 30 Comment
  POM181655  Carpobrotus chilensis H. F. Copeland 1928-2-26 1034 San Mateo Montara Comment
  JEPS88831  Castilleja T. I. and F. M. Chuang 1991-7-1 7850 San Mateo 0.8 mi n San Gregorio Beach Comment
  POM15460  Castilleja affinis C. F. Baker 1902-5-1 777 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC249194  Castilleja affinis E. McClintock; Philip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Below Nike station Comment
  HSC23994  Castilleja affinis Mary Katherine Wicksten 1971-6-24 121 San Mateo Huddart Park, by park entrance Comment
  CHSC57099  Castilleja affinis subsp. affinis Steven Triana 1988-5-24 200 San Mateo Along w side of Old La Honda Road ca 0.8 mi s of Portola Road and 4.0 mi s of Woodside. 201 Comment
  JEPS86227  Castilleja affinis subsp. affinis L. R. Heckard 1970-5-5 2452 San Mateo n side San Bruno Mountain (n spur) 60 Comment
  JROH3933  Castilleja affinis subsp. affinis H. A. Borthwick 1920-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3940  Castilleja affinis subsp. affinis John H. Thomas 1961-4-29 9187 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3942  Castilleja affinis subsp. affinis John H. Thomas 1974-4-25 17213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15408  Castilleja affinis subsp. affinis Toni Corelli 2010-5-13 609 San Mateo Pedro Point Headlands, Pacifica CA; along Arroyo Trail 110 Comment
  JEPS103890  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1991-7-3 7861 San Mateo 1 mile S of Linda Mar, on highway 1 Comment
  RSA0030796  Castilleja ambigua subsp. ambigua D. D. Keck 1932-4-29 1453 San Mateo Burlington - San Mateo city limits, Bayshore Highway. Along San Francisco Bay. Comment
  JROH3970  Castilleja attenuata John Hunter Thomas 1985-4-18 23526 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH3977  Castilleja densiflora subsp. densiflora John H. Thomas 1961-4-29 9189 San Mateo Jasper Ridge Biological Preserve, Stanford University; at western end of serpentine outcroppings Comment
  JROH5616  Castilleja densiflora subsp. densiflora John Rawlings 2014-5-3 1220 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of the power pole mound where dear-browsed shrubby coast live oaks begin transition into San Francisquito Creek riparian corridor. 89 Comment
  JEPS27355  Castilleja exserta subsp. latifolia Rimo Bacigalupi with L. Heckard and J. Roof 1961-4-24 7616 San Mateo due e KQED radio tower and power station (San Bruno Mountain summit); San Bruno Mountain 350 Comment
  SEINET12288673  Castilleja foliolosa McCallum 1933-1 s.n. San Mateo in Los Trancus Woods Comment
  RSA428380B  Castilleja franciscana J. Doty 1969-3-26 595 San Mateo 100 yards E of jct Hwy 35 and 92, near summit of Caost Range, San Francisco Peninsula. Comment
  CAS-BOT-BC243830  Castilleja latifolia John H. Thomas 1965-4-29 10613 San Mateo San Bruno Mountainin northern part of county 396 Comment
  SD4825  Castilleja latifolia Ulysses S. Grant IV June 1925 San Mateo near La Honda Comment
  JROH3988  Castilleja rubicundula subsp. lithospermoides D. D. Davis 1903-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH3999  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1975-5-26 17907 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS34324  Castilleja subinclusa subsp. franciscana L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1329 San Mateo just e Adobe Ave. in San Pedro Valley (grade of old county road over San Pedro Mt.); San Pedro Mt., San Pedro Valley 60 Comment
  JEPS83044  Castilleja subinclusa subsp. franciscana Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 430 San Mateo ca 1.7 km sw Pilarcitos Dam (and 5.8 km nw of intersection of Calif Hwys 35 and 92, along crest of Cahill Ridge, on e side of gravel rd); San Francisco Watershed Reserve, Cahill Ridge 335 Comment
  SFV8662  Castilleja subinclusa subsp. franciscana C. N. Rivera 1969-5-24 18 San Mateo Belmont. On Skyline Blvd. about 1 mile south of intersection with State Highway 35. Comment
  JEPS15590  Castilleja wightii Rimo Bacigalupi with J. R. Sweeney, Cliff Fenneman and George Bacigalupi Jr. 1954-8-3 4737 San Mateo slopes directly above Edgemar (on the old coast highway connection with Skyline Boulevard) 76 Comment
  JEPS18908  Castilleja wightii Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5446 San Mateo 1.1 mi n Montara, n limits of town (along Calif Hwy 1, a w end of Montara Mountain); Montara Mountain Comment
  JEPS19719  Castilleja wightii Peter H. Raven 1957-6-24 10965 San Mateo just s Linda Mar Comment
  JEPS34323  Castilleja wightii L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1328 San Mateo 500 ft se San Pedro Valley (town) (slopes above South Fork of San Pedro Creek, near home of John Gay) Comment
  JEPS34326  Castilleja wightii L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1332 San Mateo n flank San Pedro Mt. (along old county road over San Pedro and Montara mountains); , Montara Mts. 243 Comment
  JEPS47428  Castilleja wightii L. R. Heckard 1964-7-26 1426 San Mateo 0.4 mi up Lobitos Creek road from Verde Road on old highway (Lobitos Creek road, above Lobitos Creek valley) Comment
  JEPS6953  Castilleja wightii Peter H. Raven 1950-4-30 1989 San Mateo Montara Mts. 24 Comment
  JEPS85727  Castilleja wightii L. R. Heckard 1964-6-24 1395 San Mateo near San Bruno Mt. summit (n of transmitting stations); San Bruno Mt. 304 Comment
  RSA428365B  Castilleja wightii Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  RSA428366B  Castilleja wightii E. A. Purer 1933-7-27 5374 San Mateo 2 miles south of Pigeon Point. Comment
  SEINET3840786  Castilleja wightii Unknown 2005-6-21 5 .371 San Mateo Northeast corner of Pilarcitos Lake, SF Water District land 250 Comment
  UC202800  Castilleja wightii A. D. E. Elmer Jul 1903 4761 San Mateo San Pedro; ; San Pedro, San Mateo Co. Comment
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Nov 23 2007
  POM20827  Castilleja wightii Katherine Brandegee 1917-7-15 s.n. San Mateo Moss Beach between the station and the bluffs. Comment
  POM283640  Castilleja wightii Lyman Benson 1930-4-7 2046 San Mateo Moss Beach. Pacific Ocean Bluffs. 15 Comment
  RSA517381  Castilleja wightii L. R. Heckard, R. C. Bacigalupi 1963-7-2 1330 San Mateo Along old country road over San Pedro and Montara mountains; northern flank of San Pedro Mt. 152 Comment
  RSA622154  Castilleja wightii John A. Churchill 1974-4-14 744121 San Mateo Half Moon Bay. Route 1 behind Half Moon Bay. Comment
  CAS-BOT-BC39378  Caulanthus lasiophyllus John H. Thomas 1961-5-7 9315 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC40400  Caulanthus lasiophyllus L. R. Abrams 1920-6-1 7503 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City. Comment
  CAS-BOT-BC39383  Caulanthus lasiophyllus Paul Arnaud 1941-5-3 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  CAS-BOT-BC39384  Caulanthus lasiophyllus Walter Knight; Irja Knight 1965-5-9 1103 San Mateo San Bruno Mountains. Devil's Arroyo. Comment
  POM285181  Ceanothus cuneatus Lyman Benson 1929-3-2 991 San Mateo East of Lake Searsville Comment
  SEINET13945825 Image available Ceanothus cuneatus Lewis S. Rose 1964-1 64011 San Mateo Emerald Lake, west of Redwood City. Alt. ca 400 ft. 122 Comment
  JROH3521  Ceanothus cuneatus var. cuneatus Duncan M. Porter 1961-2-8 741 San Mateo Jasper Ridge Biological Preserve, Stanford University. N slope of ridge below picnic area near crest at N end of ridge Comment
  JROH3525  Ceanothus cuneatus var. cuneatus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD112111  Ceanothus cuneatus var. cuneatus Lewis S. Rose 1964-3-23 64011 San Mateo Emerald Lake, west of Redwood City. 121 Comment
  RSA10378  Ceanothus oliganthus H. A. Barker 1926-5-1 604 San Mateo Kings Mt. Comment
  CAS-BOT-BC51600  Ceanothus oliganthus var. sorediatus W. R. Dudley 1893-4-1 s.n. San Mateo Foothills - McDuough Place near portola Comment
  JROH3531  Ceanothus oliganthus var. sorediatus John H. Thomas 1975-5-12 17847 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB18628  Ceanothus oliganthus var. sorediatus Schulte, John 1963-4-14 San Mateo between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC51241  Ceanothus papillosus J. I. McMurphy 1906-5-20 13 San Mateo Santa Cruz Peninsula - King's Mt. Santa Cruz Mts. 457 Comment
  UCSC000469  Ceanothus sorediatus A. E. Wieslander 1929-3-3 45 San Mateo Near Palo Alto Plot #1 "Santa Cruz"?, Cordilleras Creek 305 Comment
  CAS-BOT-BC52287  Ceanothus thyrsiflorus L. R. A. 1902-5-20 2463 San Mateo King's Mountain Comment
  CAS-BOT-BC52289  Ceanothus thyrsiflorus David D. Keck 1932-5-11 1773 San Mateo Three miles West of Kings Mountain, on road to Tunitas, west slope of Santa Cruz Mountains 457 Comment
  CAS-BOT-BC52299  Ceanothus thyrsiflorus W. R. Dudley 1894-3-25 s.n. San Mateo By road from San Gregorio to Pescadero Comment
  POM136452  Ceanothus thyrsiflorus Stewart H. Burnham 1894-4-21 1586 San Mateo [Unspecified] Comment
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Aug 11 2010
  UC1073367  Ceanothus thyrsiflorus George B. Rossbach 1955-3-26 342 San Mateo San Pedro Point, northwest end Montara Mountains Comment
  UC1219870  Ceanothus thyrsiflorus John H. Thomas 1961-5-7 9295 San Mateo San Bruno Mountain in northern part of county. 304 Comment
  RSA122365  Ceanothus thyrsiflorus N. K. Carlson 1935-7-5 60 San Mateo 3 miles S of Bellvale. 91 Comment
  UCSC011285  Ceanothus thyrsiflorus Unknown 1972-5-31 s.n. San Mateo Waddell Creek area Comment
  SBBG64339  Ceanothus thyrsiflorus var. thyrsiflorus C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 1.4 mi E of Hwy 1 30 Comment
  UC91552  Centaurea calcitrapa J. W. Congdon 1901-7-27 San Mateo San Mateo Comment
  CAS-BOT-BC274584  Centaurea calcitrapa Evelina Cannon 1896-1-1 s.n. San Mateo San Mateo Comment
  CAS-BOT-BC274595  Centaurea calcitrapa Phillip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. Crocker Hills near Cow Palace Comment
  RSA0115047  Centaurea calcitrapa Lyman Benson 1945-7-29 11838 San Mateo Bayshore Highway at San Carlos. 3 Comment
  UC1925872  Centaurea calcitrapa Ethel Crum 1930-10-26 930 San Mateo San Francisco Peninsula Comment
  UCD130018  Centaurea cyanus Jane A. Reese 1966-6-11 125 San Mateo northwest slope, Whiskey hill road, 1 mile from Junction with Woodside Road. 152 Comment
  CAS-BOT-BC277121  Centaurea melitensis Margaret A. Barry 1937-6-22 167 San Mateo Exposed top of Coal Mine Ridge Comment
  JROH611  Centaurea solstitialis John Hunter Thomas 1991-11-21 26109 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  JEPS23531  Centranthus ruber J. H. Thomas 1954-5-28 4262 San Mateo along El Camino Real at n. edge of San Carlos 30 Comment
  CAS-BOT-BC279321  Centromadia pungens subsp. pungens John Thomas Howell 1956-9-19 31877 San Mateo 2.3 miles s. of Lake Merced on Skyline Blvd. Comment
  CAS-BOT-BC279332  Centromadia pungens subsp. pungens Alice Eastwood 1919-9-1 s.n. San Mateo San Mateo Comment
  OBI16134  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Blurlingame, Trousdale Dr. & Calif dr. 9 Comment
  CAS-BOT-BC384958  Cerastium arvense W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Ravine north of Seal Cove Comment
  CAS-BOT-BC384957  Cerastium arvense David D. Keck 1932-3-27 1410 San Mateo Stanford University; near the quarry on Matadero Creek Comment
  JROH151  Ceratophyllum demersum John Hunter Thomas 1981-7-12 20712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC400169  Ceratophyllum demersum W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. W. twin-pond near Mussel Rock Comment
  RSA112373  Cercocarpus betuloides James I. McMurphy 1906-4-4 18 San Mateo Los Francos Creek, Santa Cruz Mts Comment
  CAS-BOT-BC135473  Cercocarpus betuloides var. betuloides James McMurphy 1906-4-4 s.n. San Mateo Creek above Judge Allen's Ranch Comment
  CAS-BOT-BC135475  Cercocarpus betuloides var. betuloides Margaret A. Barry 1937-4-21 11 San Mateo Woods on Coal Mine Ridge Comment
  SEINET11248322 Image available Cercocarpus montanus M. E. Springer 1946-9-1 725 San Mateo Near Searsville Lake Comment
  CHSC263  Chamaemelum nobile J. Turner 1930-5-2 San Mateo Moss Beach. Comment
  CHSC57077  Chenopodium californicum Steven Triano 1988-5-24 212 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  IRVC9051  Chlorogalum pomeridianum P. W. Rundel 1963-7-7 1144 San Mateo San Francisco Bay drainage area; Kings Mtn Road; woodside. Santa Cruz Mountains 305 Comment
  HSC15442  Chlorogalum pomeridianum var. divaricatum J. Wendell Howe 1930-5-27 152 San Mateo Pebble Beach, near ocean Comment
  RSA133889  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1958-6-11 7222 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  CDA19922  Chondrilla juncea J. Beall 2002-6-26 PDR P 120157 San Mateo San Francisco Bay Area; Atherton Caltrain Station on Fair Oak Ln. 0 Comment
  NY285629  Chorizanthe cuspidata var. marginata A. D. E. Elmer 05 1903 4828 San Mateo San Pedro Comment
  JROH3222  Chorizanthe diffusa Le Roy Abrams 1901-5-20 1653 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC252659  Chorizanthe membranacea C. Rose Broome; Cristalyn M. Cagle 1978-6-17 2166 San Mateo Nacimiento-Ferguson Road 3 miles east of its junction with California Highway 1, and 4.1 miles west of Nacimiento Guard Station, Los Padres N.F. 427 Comment
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Oct 1 2021
  POM270420  Chrysolepis chrysophylla Lyman Benson 1932-7-25 3953 San Mateo Kings Mt. above Woodside; San Francisquito Cr. watershed. 305 Comment
  CAS-BOT-BC36402  Chrysolepis chrysophylla var. minor David D. Keck 1934-7-7 2926 San Mateo Kings Mountain, just east of summit 548 Comment
  JEPS85230  Cicendia quadrangularis Roy E. Buck and James A. West 1985-4-29 524 San Mateo 1.9 air km ene Franklin Point (just n of Whitehouse Canyon rd, ca 0.8 km ne of Whitehouse Canyon Rd junction with Calif Hwy 1, Cascade Ranch) Comment
  JROH2581  Cicendia quadrangularis John H. Thomas 1958-5-10 7154 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing in grassy openings among oaks to the north of the top of the ridge. Comment
  RSA187410  Cicendia quadrangularis John H. Thomas 1966-4-2 11545 San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Along road at the Searsville end. Comment
  JROH2585  Cicendia quadrangularis John H. Thomas 1968-4-19 14301 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285237  Cichorium intybus Cherie Wetzel 1969-6-20 862 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  RSA0070580  Cirsium brevistylum L. R. Abrams, Ira L. Wiggins 1939-6-3 427 San Mateo Ano Nuevo Point. Comment
  POM261287  Cirsium fontinale var. fontinale J. T. Howell 1939-6-16 14746 San Mateo Crystal Springs Lake Comment
  UC175461  Cirsium fontinale var. fontinale W. N. Suksdorf 1913-6-22 113 San Mateo Crystal Springs Lake 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
  RSA176529  Cirsium occidentale var. venustum John H. Thomas 1963-6-23 10169 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
  UC30815  Cirsium occidentale var. venustum J. Burtt Davy 1893-6-17 815 San Mateo Belmont Comment
  CAS-BOT-BC280134  Cirsium occidentale var. venustum C. F. Leitholt 1894-7-28 s.n. San Mateo Buckhorn Ranch, near Portola Comment
  CAS-BOT-BC280519  Cirsium quercetorum Peter H. Raven 1950-6-3 2261 San Mateo Near San Andreas Lake 121 Comment
  CDA1533  Cirsium quercetorum T. C. Fuller 1971-6-1 19881 San Mateo Crystal Springs Reservoir E shore, 0.3 mi. SE of center causeway; Belmont. Comment
  CDA1535  Cirsium quercetorum T. C. Fuller 1971-6-1 19882 San Mateo Crystal Springs Reservoir E shore, 0.3 mi. SE of center causeway; Belmont. Comment
  CAS-BOT-BC280504  Cirsium quercetorum L. R. Abrams 1918-4-30 7065 San Mateo Bayshore Road, San Bruno Hills Comment
  CAS-BOT-BC285864  Cirsium vulgare John H. Thomas 1963-7-19 10198 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  RSA453491  Clarkia amoena subsp. amoena E. A. Purer 1932-7-16 s.n. San Mateo Near Half Moon Bay Comment
  CAS-BOT-BC163976  Clarkia purpurea subsp. quadrivulnera Margaret A. Barry 1937-5-1 53 San Mateo Exposed slopes on Coal Mine Ridge Comment
  JROH3007  Clarkia purpurea subsp. quadrivulnera John Rawlings 2013-4-19 1140 San Mateo Jasper Ridge Biological Preserve, Stanford University. On easterly of the two paths leading from Goya Gate to Road F. 192 Comment
  CAS-BOT-BC164569  Clarkia purpurea subsp. viminea W. R. Dudley 1905-6-18 s.n. San Mateo Field near Iverson's Place naer Peter's Creek Comment
  SEINET12189254  Clarkia quadrivulnera Unknown 1932-1 9166 San Mateo Los Trenios Woods Comment
  CAS-BOT-BC165134  Clarkia rubicunda A. D. E. Elmer 1903-6-1 4310 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC165157  Clarkia rubicunda Phipps 1922-7-1 s.n. San Mateo Tunitas Creek Comment
  CAS-BOT-BC165158  Clarkia rubicunda Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC165162  Clarkia rubicunda Alice Eastwood 1912-6-10 331 San Mateo Millbrae Comment
  CAS-BOT-BC165167  Clarkia rubicunda Margaret A. Barry 1937-6-22 159 San Mateo Exposed slopes on Coal Mine Ridge Comment
  CAS-BOT-BC165179  Clarkia rubicunda L. R. Abrams 1907-8-26 s.n. San Mateo Kings Mt. Comment
  CHSC57020  Clarkia rubicunda Josephine Boyd 1988-5-5 San Mateo Ca 500 ft se of the twin-topped peak located ca 0.4 mi e of the jct. between Hwy. 280 and Edgewood Road in Redwood City. 222 Comment
  JEPS43631  Clarkia rubicunda Dr. L. M. Newlon 1921-1 251 San Mateo between Salada and Mussel Rock 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
  JROH3011  Clarkia rubicunda Richard L. Garber unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3015  Clarkia rubicunda Rachel Hays 1972-7-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC165144  Clarkia rubicunda Elizabeth McClintock 1965-6-13 s.n. San Mateo Lower slope on south side above Olivet Cemetery Comment
  CAS-BOT-BC165168  Clarkia rubicunda W. R. Dudley 1903-5-31 s.n. San Mateo New Grade Road by [Corte de Madera] Corte Madera Creek above Fitzpatrick Road Comment
  CAS-BOT-BC165171  Clarkia rubicunda H. L. Mason 1921-7-14 s.n. San Mateo La Honda - Pescadero Road near Pescadero Creek Comment
  RSA113581  Clarkia rubicunda Peter H. Raven 1957-6-30 11012 San Mateo Near bridge over Tunitas Creek along State Highway 1 Comment
  RSA41288  Clarkia rubicunda Robert F. Hoover 1941-5-20 5108 San Mateo Redwood City hills Comment
  SJSU11020  Clarkia rubicunda P. L. Rucker 1963-7-20 San Mateo Alpine Rd 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
  SEINET4149811  Clarkia rubicunda subsp. blasdalei K. Brandegee s.n. San Mateo Between San Pedro and Moss Beach Comment
  CAS-BOT-BC439290  Claytonia exigua subsp. exigua H. A. Dutton 1900-2-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH3329  Claytonia exigua subsp. exigua L. R. Abrams 1901-1-27 1101 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC439590  Claytonia parviflora subsp. parviflora Margaret A. Barry 1937-5-15 98 San Mateo On Coal Mine Ridge 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-BC439990  Claytonia perfoliata subsp. mexicana Peter H. Raven 1951-3-12 2746 San Mateo Summit ridge San Bruno Mountains Comment
  RSA101038  Claytonia perfoliata subsp. mexicana G. Oberlander 1949-3-2 18 San Mateo Under oak madrone, Sawyer Ridge, San Frncisco Watershed Reserve. Comment
  JROH3345  Claytonia perfoliata subsp. perfoliata John H. Thomas 1967-3-13 12410 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3346  Claytonia perfoliata subsp. perfoliata John H. Thomas 1967-4-28 12725 San Mateo Jasper Ridge Biological Preserve, Stanford University; near "Oaks" Comment
  JROH3403  Clematis lasiantha John H. Thomas 1956-4-7 5628 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
  JROH3422  Clematis ligusticifolia Toni Corelli 2007-8-28 336 b San Mateo Jasper Ridge Biological Preserve, Stanford University; below Trail 2, above San Francisquito Creek along embankment 71 Comment
  JROH2871  Clinopodium douglasii H. A. Lewis 1908-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH2875  Clinopodium douglasii John H. Thomas 1971-5-30 15954 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2876  Clinopodium douglasii D. E. Breedlove 1971-5-31 19366 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC389745  Clinopodium douglasii M. Danielson 1965-5-15 s.n. San Mateo Western extension of Edgewood Road - Redwood City Comment
  CAS-BOT-BC499374  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 2 mi. from Pescadero on Alpine Creek Comment
  SEINET12044199  Clintonia andrewsiana L. S. Rose 1931-1 s.n. San Mateo La Honda Comment
  POM14815  Collinsia franciscana C. F. Baker 1902-4-6 647 San Mateo Crystal Springs Lake. Comment
  JEPS6369  Collinsia heterophylla Rimo Bacigalupi and G. T. Robbins 1954-6-18 4551 San Mateo 1/4 mi w, along Alpine Rd Skyline Blvd 701 Comment
  CAS-BOT-BC240936  Collinsia multicolor Miss E. Cannon No date on label s.n. San Mateo Hills near the Bay, South San Francisco Comment
  JROH209  Conium maculatum John H. Thomas 1968-5-22 14462 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of lake Comment
  SBBG54550  Conium maculatum C. Taylor 1971-6-12 158 San Mateo corner of Harbor Blvd and Old Country Rd, Belmont Comment
  CAS-BOT-BC286209  Conyza canadensis Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  RSA176609  Conyza canadensis John H. Thomas 1961-8-27 9694 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
  UC72234  Corallorhiza maculata Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  JROH4765  Corallorhiza striata John Hunter Thomas 1985-4-25 23568 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS23960  Cordylanthus rigidus subsp. rigidus John H. Thomas 1959-8-22 8075 San Mateo Jasper Ridge, 5 mi sw Palo Alto; Jasper Ridge 152 Comment
  CAS-BOT-BC101483  Corethrogyne filaginifolia George Oberlander 1950-4-3 863 San Mateo Grassland east of Lower Crystal Spr. Lake Comment
  UC87483  Corethrogyne filaginifolia C. F. Baker 1902-5-10 810 San Mateo Crystal Springs Lake Comment
  POM190259  Corethrogyne filaginifolia var. californica D. D. Keck 1932-5-25 1785 San Mateo East side of Crystal Springs Lake Comment
  POM39730  Corethrogyne filaginifolia var. californica Katherine Brandegee 1905-6-20 s.n. San Mateo Near Lake Pilarcitos Comment
  POM132435  Cornus californica C. F. Baker 1902-9-2 1551 San Mateo Crystal Springs Lake. Comment
  POM287561  Cornus californica Arthur L. Cohen 1935-2-22 525 San Mateo King's Mountain Road; Mt. Range: Santa Cruz; Watershed: San Francisco Bay. 152 Comment
  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
  JROH1877  Cornus sericea subsp. sericea John Hunter Thomas 1986-5-1 23987 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek near low flow crossing Comment
  UCR3565  Cornus sericea subsp. sericea Wm. Horn Jr. 1964-6-11 630611- 01 San Mateo San Francisco Bay region, Hillsborough [Burlingame], 2240 Redington Road 30 Comment
  JROH5906  Cornus sericea subsp. sericea M. Ray 1982-4-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; swamp trail about 1 km from Mapache Gate Comment
  CDA18372  Cortaderia selloana G. D. Barbe 1978-9-26 2442 San Mateo Skylawn Memorial Park; drive from Hwy 92 into the park. 716 Comment
  CAS-BOT-BC180277  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo In Bitter Cherry Ravine at the upper part. San Bruno Mountain Comment
  CAS-BOT-BC180278  Corylus cornuta subsp. californica Phillip Wheeler 1965-6-7 s.n. San Mateo Lower Owls Canyon ridge. San Bruno Mountain Comment
  CAS-BOT-BC180373  Corylus cornuta subsp. californica Margaret A. Barry 1937-6-15 199 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC180375  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1964-9-2 61 San Mateo On Mouth of Colma Canyon. San Bruno Mountain Comment
  RSA210917  Cotoneaster lacteus John H. Thomas 1968-10-6 14842 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. E of Palo Alto. Comment
  JROH3639  Cotoneaster pannosus John Hunter Thomas 1981-4-23 20466 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3646  Cotoneaster pannosus John Hunter Thomas 1983-7-20 22901 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC287303  Cotula australis W. R. Dudley 1909-10-4 s.n. San Mateo North pond near Mussel Rock Comment
  CAS-BOT-BC287305  Cotula australis Walter & Irja Knight 1965-2-28 874 San Mateo San Bruno Mt. Ridge 0.25 mile E parking lot Comment
  CAS-BOT-BC427829  Crassula connata John H. Thomas 1958-3-19 7053 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 91 Comment
  CAS-BOT-BC427832  Crassula connata John H. Thomas 1961-5-7 9260 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC427837  Crassula connata Javier Penalosa 1963-3-30 2743 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF. 289 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
  JROH1888  Crassula connata John H. Thomas 1977-4-2 18509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM275977  Crataegus monogyna Lyman D. Benson 1930-5-3 2104 San Mateo Santa Cruz Mt. 244 Comment
  CAS-BOT-BC291510  Crepis capillaris Josephine D. Randall 1907-6-29 66 San Mateo Portola Road, Santa Cruz Peninsula Comment
  JROH4983  Crypsis schoenoides John Hunter Thomas 1980-11-27 20194 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old bathing beach area Comment
  JROH1358  Cryptantha flaccida Robert Robertson 1954-4-23 92 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC78495  Cryptantha flaccida C. F. Baker 1902-4-6 468 San Mateo Crystal Springs Lake Comment
  JROH1368  Cryptantha micromeres John Rawlings 2009-5-7 1069 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 in chaparral. 158 Comment
  JEPS27362  Cryptantha microstachys Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7622 San Mateo on Guadalupe Valley side of San Bruno Mt. (ridge below & s.e. of end of paved ridge-top rd. just e. of KRON t.v. tower & station) 304 Comment
  CAS-BOT-BC287334  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  CAS-BOT-BC287344  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
  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
  CAS-BOT-BC190210  Cynodon dactylon Elizabeth McClintock; Paul Reeberg 1988-8-18 s.n. San Mateo San Bruno Mountains. Along railroad tracks near PG&E gasline west of Quarry. 45 Comment
  JROH5001  Cynodon dactylon John H. Thomas 1967-11-5 14135 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5005  Cynodon dactylon John Hunter Thomas 1987-5-26 24313 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5591  Cynodon dactylon John Rawlings 2013-4-30 1184 San Mateo Jasper Ridge Biological Preserve, Stanford University; growing at the northeast edge of Rd B, a few meters from the old Boething Nursery Gate 74 Comment
  HSC23980  Cynoglossum grande Mary Katherine Wicksten 1971-7-2 149 San Mateo Huddart Park, Miwok Flat Comment
  CAS-BOT-BC190352  Cynosurus echinatus J. H. Thomas 1961-8-20 9684 San Mateo Hiking and riding trail below Skyline Boulevard between Bear Gulch Road and Kings Mountain Road. 609 Comment
  JROH4389  Cyperus eragrostis John H. Thomas 1974-10-29 17647 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  RSA184845  Cyperus eragrostis L. S. Rose 1965-9-20 65107 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  RSA176822  Cytisus monspessulanus John H. Thomas 1961-5-5 9208 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  CAS-BOT-BC198192  Cytisus scoparius Charles Piper Smith 1922-4-29 3507 San Mateo Lake San Andreas Comment
  CAS-BOT-BC198212  Cytisus striatus Elizabeth McClintock; Paul Reeberg 1988-3-15 s.n. San Mateo Olivet Ravine, San Bruno Mountains Comment
  JROH5017  Dactylis glomerata John Hunter Thomas 1977-6-16 18753 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval Comment
  JROH5039  Danthonia californica John H. Thomas 1970-4-28 15606 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5041  Danthonia californica John Hunter Thomas 1981-5-19 20611 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA11231  Danthonia californica D. Keck; 1932-5-6 1479 San Mateo W of Millbrae Highlands 50.0 Comment
  RSA790274  Danthonia californica Peter Rubtzoff 1976-5-22 8547 San Mateo San Bruno Mtn: ''Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  SJSU10402  Danthonia californica E. C. Garbett 1960-5-1 120 San Mateo Georgia Lane c. 1 mi E of Portola Rd, Portola Valley Comment
  SJSU15903  Danthonia californica John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1728 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  UCD60673  Danthonia californica var. americana Ira L. Wiggins 1929-5-10 3673 San Mateo Coastal bluff at Pigeon Point. Comment
  POM199070  Danthonia californica var. californica A. D. E. Elmer 1903-06 4707 San Mateo Crystal Springs Lake. Comment
  JROH232  Daucus pusillus John Hunter Thomas 1991-5-2 25020 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
  CAS-BOT-BC287371  Deinandra corymbosa A. Kellogg; W. G. W. Harford 1868-6-10 486 San Mateo San Bruno Comment
  CAS-BOT-BC299213  Deinandra corymbosa subsp. corymbosa Fred Hemphill 1973-5-14 819 San Mateo Area north of Malabar Road adn Melendy Drive 207 Comment
  CAS-BOT-BC299215  Deinandra corymbosa subsp. corymbosa Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo Pig Ranch Ravine, San Bruno Mountain Comment
  CAS-BOT-BC299227  Deinandra corymbosa subsp. corymbosa David D. Keck 1932-5-25 1784 San Mateo Hills two miles west of Belmont Comment
  CAS-BOT-BC299193  Deinandra corymbosa subsp. corymbosa J. Clausen 1941-7-1 1870 San Mateo Base of Montara Mountain near Montara 91 Comment
  CAS-BOT-BC299206  Deinandra corymbosa subsp. corymbosa W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  CAS-BOT-BC299228  Deinandra corymbosa subsp. corymbosa David D. Keck 1932-5-11 1765 San Mateo One mile east of San Gregorio 50 Comment
  CAS-BOT-BC300004  Deinandra lobbii Josephine D. Randall 1907-11-3 s.n. San Mateo Los Trancos Road near Standford University, Santa Cruz Peninsula Comment
  SJSU8526  Deinandra pentactis M. Perry 1979-10-5 210 San Mateo Cloverdale Road 0.25 mi N of its junction with Gazos Creek Road E of Pigeon Point Comment
  CAS-BOT-BC292114  Delairea odorata Roxana S. Ferris 1920-3-8 1761 San Mateo Frenchmans Creek near ocean Comment
  OBI10661  Delphinium californicum Lewis S. Rose 1965-5-3 65058 San Mateo San Bruno Mtn, Colma Cyn 61 Comment
  POM270770  Delphinium californicum Lyman Benson 1930-5-12 s.n. San Mateo Lake Searsville. 152 Comment
  CAS-BOT-BC9220  Delphinium californicum W. R. Dudley 1910-5-26 s.n. San Mateo Near Los Trancos Creek, above Judge Allen's, Santa Cruz Mountains Comment
  CAS-BOT-BC9209  Delphinium californicum subsp. californicum Adolph Daniel Edward Elmer 1903-7-1 4548 San Mateo Pilarcitos Stone Dam Comment
  JROH3432  Delphinium californicum subsp. californicum D. E. Breedlove 1971-5-31 19358 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  SEINET5546959  Delphinium decorum H. S. Gentry 1931-1 80 San Mateo Collected 1 mile SE of Holy Cross Cemetery. Comment
  UC9150  Delphinium decorum subsp. tracyi Ivar Tidestrom May 1894 San Mateo Comment
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Jun 4 2007
  CAS-BOT-BC10290  Delphinium hesperium Ned Cahill 1974-5-13 277 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi. westward from Redwood City Comment
  JROH3443  Delphinium hesperium subsp. hesperium John H. Thomas 1974-5-29 17396 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9872  Delphinium nudicaule David Daniels Keck 1934-7-7 2928 San Mateo Kings Mountain, west of summit. 609 Comment
  JROH3457  Delphinium patens subsp. patens John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC116533  Delphinium patens subsp. patens P. H. Arnaud 1941-4-21 s.n. San Mateo Hills - back of Hesler farm, Redwood City Comment
  CAS-BOT-BC7893  Delphinium variegatum C. F. Baker 1902-4-6 458 San Mateo Crystal Springs Lake Comment
  RSA32657  Delphinium variegatum Doris K. Kildale 1930-4-21 9221 San Mateo Emerald Lake Comment
  UC136351  Delphinium variegatum C. F. Baker May 1902 748 San Mateo Woodside Comment
  SEINET12086776  Delphinium variegatum L. S. Rose 1932-1 32138 San Mateo Redwood City Comment
  CAS-BOT-BC7937  Delphinium variegatum subsp. variegatum John Hunter Thomas 1961-5-14 9386 San Mateo Along Canada Road near intersection of Edgewood Road 91 Comment
  JROH3467  Delphinium variegatum subsp. variegatum John Hunter Thomas 1980-5-6 19926 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC192600  Deschampsia cespitosa subsp. holciformis H. L. Mason 1921-5-28 s.n. San Mateo Pebble Beach near Pescadero Comment
  JROH5045  Deschampsia danthonioides H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC201907  Deschampsia elongata John H. Thomas 1961-5-23 9452 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  CAS-BOT-BC201908  Deschampsia elongata W. R. Dudley 1908-6-26 s.n. San Mateo Edge of Dry Pond, Coal Mine Ridge Road Comment
  CAS-BOT-BC201910  Deschampsia elongata W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge, near Black Mt. 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
  CAS-BOT-BC901  Dicentra chrysantha George T. Ruddock Sept 1917 s.n. San Mateo San Carlos Peak Comment
  UC1300934  Dichelostemma capitatum Helen K. Sharsmith 1963-2-16 5140 San Mateo above Daly City; San Francisco Bay Region, San Bruno Mountain 106 Comment
  CAS-BOT-BC502167  Dichelostemma congestum Fred Hemphill 1973-4-22 743 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC502168  Dichelostemma congestum Fred Hemphill 1973-4-22 693 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  JROH5076  Digitaria sanguinalis H. J. Dengler 1965-8-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In S.F. Creek bed, a few hundred yards below N. bend, at the Dennis Martin settlement site. 71 Comment
  CDA6697  Dipsacus sativus T. C. Fuller 1960-4-2 4066 San Mateo Crystal Springs Reservoir, road to Half Moon Bay. 0 Comment
  CAS-BOT-BC121863  Dirca occidentalis F. G. Kraus 1893-5-27 s.n. San Mateo near La Honda Comment
  CAS-BOT-BC121865  Dirca occidentalis Quinn P. Sinnott; Kathy A. Sinnott 1975-3-1 611 San Mateo Along road about 1 miles N of Stone Dam. San Francisco Watershed at Crystal Springs. 243 Comment
  JROH4208  Dirca occidentalis John H. Thomas 1975-4-3 17701 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA392566  Dirca occidentalis L. S. Rose 1933-3-2 33002 San Mateo San Andreas Lake Comment
  SD49792  Dirca occidentalis John H. Thomas 1958-2-15 6980 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto 152 Comment
  SEINET6957401  Dirca occidentalis Lorin I. Nevling 1996-2-16 346 San Mateo San Pedro Valley Park, Brooks Creek Trail in view of Brooks Falls. "Western Leatherwood." Comment
  SJSU647  Dirca occidentalis S. R. Piazza 1941-3-2 San Mateo near S side Searsville L Comment
  SJSU16012  Distichlis spicata John Rawlings, Ken Hickman 2016-5-26 1814 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  UC1100272  Distichlis spicata Malcolm A. Nobs, S. Galen Smith 1949-8-26 1602 San Mateo Marshes at mouth of Pescadero Creek Comment
  JROH3376  Dodecatheon clevelandii subsp. patulum Ellen Searby 1955-4-1 78 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM287491  Dodecatheon hendersonii subsp. cruciatum Lyman Benson 1931-2-16 2583 San Mateo Stanford University. Corte Madra Creek. 152 Comment
  CDA39075  Dracunculus vulgaris M. K. Beyers 2013-5-31 s.n. San Mateo Montara State Beach, McNee Ranch Trail Trailhead. Comment
  RSA133097  Drymocallis glandulosa Donald A. Johansen 1933-5-18 705 San Mateo Hills above Searsville Lake along road from Portola to La Honda Comment
  CAS-BOT-BC159536  Drymocallis glandulosa var. glandulosa W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Beach at Pescadero - Santa Cruz Peninsula Comment
  CAS-BOT-BC159546  Drymocallis glandulosa var. glandulosa John H. Thomas 1965-4-29 10600 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  RSA152261  Drymocallis glandulosa var. wrangelliana I. L. Wiggins 1925-04 1662 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  UC903041  Drymocallis glandulosa var. wrangelliana Ethel Crum 1934-4-29 1695 San Mateo one mi w Pescadero (near Pebble Beach); w of Pescadero, near Pebble Beach 30 Comment
  CAS-BOT-BC67879  Dryopteris arguta John H. Thomas 1961-5-7 9296 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC67880  Dryopteris arguta John H. Thomas 1973-6-15 16840 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  RSA176874  Dryopteris arguta John H. Thomas 1964-11-29 10543 San Mateo Jasper Ridge Biologicl Experimental Area about 5 miles SW of Palo Alto. Comment
  UC474217  Dryopteris arguta H. F. Copeland 1929-7-4 San Mateo La Honda Grade Comment
  CAS-BOT-BC67890  Dryopteris arguta W. R. Dudley 1905-6-19 s.n. San Mateo Santa Cruz Peninsula, Santa Cruz Mountains - by road near top of New Grade road to Black Mt. Comment
  POM193661  Dryopteris arguta L. R. Abrams 1901-12-29 2251 San Mateo Santa Cruz Mountains Comment
  CAS-BOT-BC428366  Dudleya farinosa Dr. Barton W. Evermann 1924-6-22 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
  SJSU16065  Dysphania ambrosioides Toni Corelli 2009-9-9 438 San Mateo Half Moon Bay State Beach, in low dunes, Half Moon Bay Comment
  JROH1823  Dysphania multifida John H. Thomas 1976-10-16 18408 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  CDA20206  Echinochloa colona J. Eide 2003-8-22 PDR 1424868 San Mateo San Francisco Bay Area; Residence at 74 Atherton Ave, Atherton. 0 Comment
  JROH4304  Echinodorus berteroi John H. Thomas 1964-11-15 10523 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry lake margin at east end of Searsville Dam Comment
  CAS-BOT-BC113592  Eleocharis acicularis M. E. Lang 1923-5-1 s.n. San Mateo Mud Lakes Comment
  POM144786  Eleocharis palustris A. D. E. Elmer 1903-07 4767 San Mateo San Pedro. Comment
  POM144805  Eleocharis palustris E. B. Copeland 1903-03 3340 San Mateo Searsville. Comment
  SD38364  Elymus condensatus Edith A. Purer 1932-7-18 4006 San Mateo Half Moon Bay, sand dunes Comment
  UCD61811  Elymus glaucus Beecher Crampton 1962-6-11 6497 San Mateo N. city limits of Pacfica; along State Hwy. 1 just southwest of its junction with Skyline Blvd. 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
  JROH5108  Elymus glaucus subsp. glaucus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC183619  Elymus repens Peter Rubtzoff; Roman Gankin 1976-6-30 8703 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  CAS-BOT-BC204302  Elymus trachycaulus subsp. trachycaulus L. R. A. 1902-5-11 2452 San Mateo Crystal Springs Comment
  SJSU15315  Elymus trachycaulus subsp. trachycaulus John Rawlings 2014-5-28 1243 San Mateo In the vicinity of the Edgewood Preserve's West Kiosk (intersection of Edgewood and Serpentine Loop trails). 184 Comment
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Feb 18 2015
  SJSU15941  Elymus trachycaulus subsp. trachycaulus John Rawlings, Kem Hickman 2016-5-26 1816 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
  JROH5279  Elymus triticoides Toni Corelli 2006-5-30 311 San Mateo Jasper Ridge Biological Preserve, Stanford University; along roadside at junction of main gate Road L and Road K to Leonard's residence 115 Comment
  JROH3047  Epilobium brachycarpum John Hunter Thomas 1988-10-17 24601 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lake Comment
  POM254417  Epilobium brachycarpum F. W. Peirson 1925-9-13 6428 San Mateo Rockaway beach Comment
  RSA176590  Epilobium brachycarpum John H. Thomas 1961-8-27 9696 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
Read comments
Jul 12 2015
  CAS-BOT-BC165935  Epilobium canum Ira L. Wiggins 1980-8-29 22254 San Mateo Sandy bed of San Francisquito Creek, ca 125 m upstream from Pope Street bridge, Menlo Park Comment
  JROH3053  Epilobium ciliatum subsp. ciliatum John Hunter Thomas 1978-7-2 19241 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  POM32681  Epilobium ciliatum subsp. watsonii Copeland 1903-6-5 3328 San Mateo Montara Point. Comment
  JROH3063  Epilobium densiflorum H. J. Dengler 1972-8-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of water along W. Searsville inlet Comment
  JROH3072  Epilobium minutum Herbert Dengler 1964-5-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; to be found ca. 100 yds. w. of tiger lily site on serp. slope Comment
  JROH3070  Epilobium minutum John H. Thomas 1963-5-15 10092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389679  Epipactis gigantea Mary Wicksten 1968-7-6 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JEPS112674  Epipactis helleborine Dean W. Taylor 2000-7-20 17431 San Mateo Montara Mountain; Scarper Peak, western slope of the peak near the summit; bordering the springbox serving the FAA facility on the summit 502 Comment
  JROH4766  Epipactis helleborine Toni Corelli 2006-6-28 313 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13 along causeway 106 Comment
  JEPS79604  Equisetum arvense Edward Lee and Ann Johnson 1974-8-24 San Mateo near Pillar Point (Princeton Marsh) Comment
  JROH61  Equisetum arvense John Hunter Thomas 1983-7-7 22822 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC57605  Equisetum telmateia L. R. A. 1902-3-16 2282 San Mateo Kings's Mountain Comment
  CAS-BOT-BC57606  Equisetum telmateia L. R. Abrams 1904-3-7 6343 San Mateo Bear Gulch near Time Falls Comment
  JROH67  Equisetum telmateia subsp. braunii Lawrence J. Winship 1974-11-2 4 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC150823  Equisetum telmateia subsp. braunii C. F. Baker 1902-3-18 324 San Mateo w side King's Mt. Comment
  POM25737  Equisetum telmateia var. braunii A. D. E. Elmer 1903-05 4602 San Mateo Cemeteries. Comment
  CAS-BOT-BC291202  Erechtites glomeratus E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Top of ridge, east of Nike station Comment
  CAS-BOT-BC299883  Erechtites glomeratus Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC299885  Erechtites glomeratus Robert F. Thorne; P. Everett 1963-6-9 32212 San Mateo Near TV tower on top of San Bruno Mountain 335 Comment
  CDA4546  Erechtites glomeratus I. J. Campbell 1958-4-18 322 -58 San Mateo 0 Comment
  SJSU12768  Eriastrum abramsii Toni Corelli 1986-5-22 San Mateo Edgewood County Park near junction of Edgewood Rd & Hwy 280, Redwood City 219 Comment
  SJSU14204  Eriastrum abramsii Toni Corelli 1989-4-25 202 San Mateo Edgewood County Park 219 Comment
  JROH689  Erigeron foliosus var. foliosus W. R. Dudley 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; top of ridge near Searsville Dam, Portola Valley Comment
  CAS-BOT-BC300609  Erigeron foliosus var. franciscensis George Oberlander 1949-7-30 303 San Mateo San Francisco Watershed Reserve. On Cahill Ridge Comment
  CAS-BOT-BC295087  Erigeron glaucus Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Power Line Ridge Comment
  CAS-BOT-BC295088  Erigeron glaucus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. East facing slope below parking lot Comment
  CDA28784  Eriodictyon californicum D. G. Kelch 2009-6-9 9 .391 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
  JROH2726  Eriodictyon californicum John H. Thomas 1974-5-29 17398 San Mateo Jasper Ridge Biological Preserve, Stanford University; near riders' shack 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
  UC429743  Eriogonum gracile L. R. Abrams 1902-9-21 2988 San Mateo Crystal Lake Comment
  CAS-BOT-BC250542  Eriogonum gracile W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Whipple Road near Crystal Springs Lake Comment
  POM165225  Eriogonum gracile var. gracile Edward L. Greene 1902-9-10 1675 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC251984  Eriogonum latifolium John H. Thomas 1963-5-20 10126 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC251995  Eriogonum latifolium A. D. E. Elmer 1903-7-1 4557 San Mateo Half Moon Bay Comment
  LA206931  Eriogonum latifolium Ira L. Wiggins; 1929-7-4 3797 San Mateo Pescadero Beach Comment
  RSA18467  Eriogonum latifolium Carl B. Wolf 1927-6-29 541 San Mateo South of Pebble Beach near Pescadero. Comment
  RSA393632  Eriogonum latifolium E. S. Spalding 1924-6-28 s.n. San Mateo Moss Beach. Comment
  CAS-BOT-BC251993  Eriogonum latifolium Phipps 1922-7-1 s.n. San Mateo Tunitas Creek Comment
  RSA162485  Eriogonum latifolium E. K. Balls 1963-5-22 12068 San Mateo 12.2 miles south from turn off to San Gregorio, State Highway #1 6 Comment
  SEINET11938060  Eriogonum latifolium Unknown 1933-1 10382 San Mateo one mile down coast from Piscadero Comment
  SEINET11938065  Eriogonum latifolium E. H. Graham 1931-1 6932 San Mateo Ano Nuevo Point, S of San Francisco Comment
  CAS-BOT-BC264774  Eriogonum luteolum Hester R. Davis 1920-6-1 177 San Mateo Back of Redwood City, Santa Cruz Mountain Peninsula Comment
  JEPS83607  Eriogonum luteolum var. luteolum Roy E. Buck, Randall A. Morgan 1984-6-17 504 San Mateo 5.7 km sw Redwood City (in area bounded by Hwy. I-280, Edgewood Rd., and Canada Rd.) 152 Comment
  JROH3230  Eriogonum luteolum var. luteolum John H. Thomas 1972-8-18 16146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1206485  Eriogonum luteolum var. luteolum Le Roy Abrams 1902-9-21 2988 San Mateo Crystal Lake - Woodside Comment
  JROH3232  Eriogonum luteolum var. luteolum John H. Thomas 1972-8-18 16146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA423118  Eriogonum luteolum var. luteolum E. A. Purer 1933-8-25 s.n. San Mateo Skyline Blvd, on hillside near Schullser tablet Comment
  CAS-BOT-BC268996  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-6-1 4311 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC269001  Eriogonum nudum var. auriculatum George Oberlander 1949-6-25 215 San Mateo San Francisco Watershed Reserve Comment
  OBI10996  Eriogonum nudum var. auriculatum Lewis S. Rose 1964-9-9 64074 San Mateo Emerald Lake, W of Redwood City 244 Comment
  CAS-BOT-BC304084  Eriophyllum confertiflorum W. R. Dudley 1895-6-14 s.n. San Mateo Santa Cruz Mt Peninsula. Top of ridge by rocks near Searsville Dam Comment
  RSA7603  Eriophyllum confertiflorum L. S. Rose 1933-5-17 33176 San Mateo Redwood City Comment
  JROH698  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1969-5-28 15076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH712  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1987-5-5 24247 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH715  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1988-6-2 24508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH716  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1989-5-9 24717 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
  CAS-BOT-BC301269  Eriophyllum lanatum var. arachnoideum John Thomas Howell 1929-8-11 4374 San Mateo King [Kings] Mt. Comment
  RSA463086  Eriophyllum lanatum var. arachnoideum Lyman Benson 1930-5-3 2113 San Mateo Above Woodside, Mt. Range: Santa Cruz. 366 Comment
  UC1718080  Eriophyllum lanatum var. arachnoideum John S. Mooring 1967-7-25 1225 San Mateo hwy 35 ca. 100 yards N of Bear Gulch Road Comment
  CAS-BOT-BC301261  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1906-6-12 s.n. San Mateo W. Union Gulch, back of winery Comment
  CAS-BOT-BC301977  Eriophyllum staechadifolium Alice Eastwood 1937-7-25 18890 San Mateo Pebble Beach, Pescadero Comment
  POM54691  Eriophyllum staechadifolium C. F. Baker 1901-10-1 1747 San Mateo Pillar Point Comment
  RSA17884  Eriophyllum staechadifolium C. B. Wolf 1927-6-29 s.n. San Mateo Pescadero. Comment
  CAS-BOT-BC301972  Eriophyllum staechadifolium E. M. Zeile 1921-7-30 s.n. San Mateo 1/2 mile north of Pigeon Point lighthouse. Comment
  CDA5404  Eriophyllum staechadifolium var. artemisiifolium T. R. Haig 1959-6-22 2639 San Mateo Half Moon Bay. 0 Comment
  UC874915  Eryngium armatum Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9296 San Mateo Ano Nuevo Point Comment
  JROH236  Eryngium jepsonii John H. Thomas 1964-7-9 10443 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH235  Eryngium jepsonii A. G. Vestal 1926-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; summit of Jasper Ridge Comment
  CAS-BOT-BC54842  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-BC54865  Erysimum franciscanum G. B. Rossbach 1940-4-23 925 San Mateo About 1 mile inland, Montara Mountains, south of San Pedro Valley and northwest of Peak Mountain. 121 Comment
  CAS-BOT-BC54866  Erysimum franciscanum G. B. Rossbach 1940-5-24 932 San Mateo San Bruno Hills. Ridge 0.5 to 1 mile southeast of highest peak. 358 Comment
  CHSC37823  Erysimum franciscanum J. F. Esperance 1982-3-6 San Mateo Top of San Bruno Mtn., 0.5 mi s of parking area along ridge top. 304 Comment
  UC1034730  Erysimum franciscanum G. B. and R. P. Rossbach 1939-5-12 912 San Mateo steep gravelly slope of headland above sea Pedro Point Comment
Read comments
Nov 23 2007
  UC1034950  Erysimum franciscanum G. B. Rossbach 1940-5-24 932 San Mateo exposed crest of ridge one-half to one mi se highest peak; San Bruno Hills 358 Comment
  CAS-BOT-BC54831  Erysimum franciscanum W. R. Dudley 1906-5-13 s.n. San Mateo Santa Cruz Peninsula. Hills southwest of San Mateo. Comment
  JROH5782  Erythranthe microphylla John Rawlings 2015-5-3 1776 San Mateo Jasper Ridge Biological Preserve, Stanford University; vernally wet area in serpentine prairie (Area C) 170 Comment
  CAS-BOT-BC403531  Eschscholzia californica Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC403549  Eschscholzia californica John H. Thomas 1971-5-2 15812 San Mateo Near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC403550  Eschscholzia californica Ned Cahill 1975-1-8 393 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC403560  Eschscholzia californica Walter Knight; Irja Knight 1964-4-25 632 San Mateo San Bruno Mountain. Power Line Ridge Comment
  JROH3099  Eschscholzia californica John H. Thomas 1975-5-26 17911 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC202743  Euonymus occidentalis G. H. Mallory 1919-8-20 s.n. San Mateo La Honda Comment
  CAS-BOT-BC202745  Euonymus occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Along Pescadero Creek, near Iversons Comment
  POM202650  Euonymus occidentalis Alice Eastwood 1933-5-31 18843 San Mateo Butano Canyon. Comment
  RSA116765  Euonymus occidentalis H. L. Mason 1921-1 s.n. San Mateo San Francisquito Creek near Searsville Lake. Comment
  SEINET12131905  Euonymus occidentalis Unknown 1932-1 9164 San Mateo Canons San Madero Creek Comment
  JROH1796  Euonymus occidentalis var. occidentalis Volney Rattan May s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Searsville Comment
  JROH1800  Euonymus occidentalis var. occidentalis H. J. Dengler 1975-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N. of Searsville Rocks, 30' from S.F. Cr. Comment
  JROH1802  Euonymus occidentalis var. occidentalis John Hunter Thomas 1985-5-22 23680 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM282553  Euphorbia crenulata Lyman Benson 1930-5-3 2089 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  CDA4815  Euphorbia helioscopia I. J. Campbell 1956-6-3 San Mateo Pescardo, Pedro Valley. 0 Comment
  RSA176579  Euphorbia lathyris John H. Thomas 1964-6-28 10435 San Mateo Along Half Moon Bay - Crystal Springs Lake road, about 2.2 mi, e of Half Moon Bay. Comment
  JROH1974  Euphorbia spathulata John H. Thomas 1974-4-4 17083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC310721  Euthamia occidentalis John H. Thomas 1968-10-6 14853 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. East of Palo Alto Comment
  JROH5148  Festuca arundinacea John Hunter Thomas 1977-6-16 18752 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval. Comment
  SJSU16063  Festuca arundinacea Toni Corelli 2009-9-22 446 San Mateo Ano Nuevo State Park, adjacent to Gazos Creek parking lot Comment
  JROH6209  Festuca bromoides John Rawlings 2013-3-31 1183 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 at the Zoology Cabin foundation site. 75 Comment
  CAS-BOT-BC278284  Festuca californica Dean Wm. Taylor 1988-4-8 9504 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 237 Comment
  JROH5178  Festuca californica W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern draw, 40 yards down. Comment
  CAS-BOT-BC278359  Festuca californica subsp. californica Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. West slope of San Bruno Mountain Comment
  UCR279848  Festuca dertonensis Peter Rubtzoff 1977-6-7 9031 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  JROH5180  Festuca elmeri John Rawlings 2013-5-13 1167 San Mateo Jasper Ridge Biological Preserve, Stanford University; uphill side of Trail 8 east of the Trail 7 intersection 136 Comment
  CAS-BOT-BC210029  Festuca idahoensis Peter Rubtzoff 1980-5-3 9436 San Mateo San Bruno Mountains. The Edward Preston Lee Memorial Site and vicinity. Comment
  UCD163541  Festuca idahoensis Peter Rubtzoff 1980-5-3 9436 San Mateo San Bruno Mountains. The Edward Preston Lee Memorial Site and vicinity. Comment
  JROH5479  Festuca microstachys Duncan M. Porter 1960-4-18 646 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch. Comment
  JROH5490  Festuca microstachys Stephen N. Turitzin 1975-5-7 4 San Mateo Jasper Ridge Biological Preserve, Stanford University 190 Comment
  RSA135767  Festuca occidentalis W. R. Dudley 1895-06 s.n. San Mateo Pescadero Creek. Comment
  JROH5284  Festuca perennis John Hunter Thomas 1980-5-1 19911 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5290  Festuca perennis John Hunter Thomas 1987-5-15 24287 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing. Comment
  JROH5292  Festuca perennis W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9. Comment
  JROH5297  Festuca temulenta John Rawlings 2007-5-30 1014 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of mowed area (fire truck turn around) near Goya Gate 192 Comment
  POM140686  Fragaria californica C. F. Baker 1902-1-15 233 San Mateo Kings Mountain. West side of King's Mountain. Comment
  RSA134237  Fragaria californica John H. Thomas 1950-3-19 1299 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
  CDA33775  Fragaria chiloensis D. G. Kelch 2011-3-13 11 .048 San Mateo Pacifica. Along sea bluffs Comment
  CHSC1548  Fragaria chiloensis G. Herrington 1930-5-1 San Mateo Moss Beach. Comment
  JROH3671  Fragaria vesca John Hunter Thomas 1985-4-25 23564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5912  Fragaria vesca L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near San Fracisquito Creek, east of the Redwood grove Comment
  UC917281  Fragaria vesca W. A. Harvey and J. M. Tucker 1948-6-29 1705 San Mateo just w road to Portola State Park jct with Highway 5 (Skyline Blvd) (beside road to Portola State Park) Comment
  CAS-BOT-BC437062  Fragaria vesca subsp. bracteata L. S. Rose 1927-3-25 s.n. San Mateo Woodside Comment
  CAS-BOT-BC457526  Fragaria vesca subsp. californica Elizabeth McClintock 1965-3-14 s.n. San Mateo Cable Ravine, San Bruno Mountain Comment
  HSC23908  Frangula californica Mary Katherine Wicksten 1971-6-17 78 San Mateo Huddart Park, along Chickadee Trail Comment
  CAS-BOT-BC52678  Frangula californica subsp. californica Margaret A. Barry 1937-9-24 221 San Mateo on Coal Mine Ridge Comment
  CAS-BOT-BC52683  Frangula californica subsp. californica Walter Knight; Irja Knight 1965-5-15 1108 San Mateo Pig Ranch Ravine Comment
  JROH3535  Frangula californica subsp. californica John H. Thomas 1961-6-14 9540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3549  Frangula californica subsp. californica John Hunter Thomas 1981-2-14 20224 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC53598  Frangula californica subsp. tomentella John H. Thomas 1971-5-2 15863 San Mateo near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC211604  Frankenia salina Roxana Stinchfield 1915-9-19 251 San Mateo Palo Alto, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC223552  Fraxinus latifolia George Oberlander 1949-8-20 367 San Mateo San Francisco Watershed Reserve. Below San Andreas Dam Comment
  CAS-BOT-BC212964  Fremontodendron californicum W. R. Dudley 1897-12-29 s.n. San Mateo Butano Creek, Santa Cruz Peninsula Comment
  UC143429  Fritillaria affinis C. F. Baker 1902-3-30 430 San Mateo Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  UC803943  Fritillaria affinis G. L. Stebbins Jr. 1949-6-5 3984 San Mateo 1/2 mi n of La Honda (along highway) Comment
  CAS-BOT-BC130118  Fritillaria affinis Walter Knight; Irja Knight 1965-3-21 990 San Mateo Trillium Gulch near Knife Edge Rock Comment
  POM196511  Fritillaria affinis W. R. Dudley 1900-3-16 s.n. San Mateo By Redwood stage road below Woodside, Santa Cruz Peninsula 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
  SEINET3886766  Fritillaria lanceolata Lois R. O'Brien 1963-3-9 85 San Mateo San Bruno Mountains, on Radio Road 3 miles from Estrada Way.; 0 213 Comment
  JEPS61919  Fritillaria liliacea Inez Smith 1915-3-15 San Mateo Hillsboro Comment
  UC1442617  Fritillaria liliacea Theodore F. Niehaus 1978-3-9 78945 San Mateo 0.2 mi nw of Polhemus Road (on Tower Road to San Mateo County Juvenile jail) Comment
  CAS-BOT-BC422462  Fumaria officinalis Elizabeth McClintock 1972-3-26 s.n. San Mateo San Bruno Mountain. Brisbane. Comment
  SEINET12285509  Galium californicum Unknown 1933-1 10379 San Mateo White House Creek Comment
  JEPS27349  Galium californicum subsp. californicum Rimo Bacigalupi with L. R. Heckard and Jim Roof 1961-4-24 7610 San Mateo just below rocky spur due north of true summit (directly below and ne of KQED radio power station); San Bruno Mountain 342 Comment
  UC28203  Galium californicum subsp. californicum J. Burtt Davy Jun 21 1893-Jun 23 1893 1144 San Mateo Pilarcitos Lake and Canyon Comment
  JROH3786  Galium murale John H. Thomas 1958-5-10 7138 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS6605  Galium porrigens var. porrigens H. A. Walker June 1914 3555 San Mateo San Bruno Hills Comment
  UC496159  Galium porrigens var. porrigens W. F. Wight 1900-1-28 San Mateo trail to Bukhorn Ranch above Prestons (old La Honda Rd.) Comment
  UC483490  Gamochaeta ustulata Ira L. Wiggins 1929-7-4 3772 San Mateo 4 mi w La Honda (on hill road to Pescadero Beach) Comment
  CAS-BOT-BC303464  Gamochaeta ustulata Elizabeth McClintock 1963-6-9 s.n. San Mateo Exposed slopes below top of mountain, San Bruno Mt Comment
  CAS-BOT-BC194556  Garrya elliptica Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo In old quarry in Colma Canyon Comment
  POM222795  Garrya elliptica K. L. Dole 1909-2-27 s.n. San Mateo Jasper Ridge. 183 Comment
  POM280064  Garrya elliptica Lyman Benson 1928-12-15 833 San Mateo Near La Honda, Santa Cruz Mt. Range. 305 Comment
  UC1122630  Garrya elliptica C. R. Clar 1928-9-17 3 San Mateo s of Lake Pilarcitos; San Mateo Quad. 274 Comment
  UC21591  Garrya elliptica J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  UCD121102  Garrya elliptica R. E. Dengler 1960-4-10 9 San Mateo Jasper Ridge, Stanford Biological Reserve. 160 Comment
  CAS-BOT-BC194566  Garrya elliptica Elizabeth McClintock 1965-3-28 s.n. San Mateo Up hill from Trillium Gulch. San Bruno Mountain Comment
  JROH5182  Gastridium phleoides John H. Thomas 1963-6-23 10172 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grasslands near Westridge end of ridge Comment
  CAS-BOT-BC59637  Gaultheria shallon Atkinson 1902-11-1 s.n. San Mateo Kings Mts. Comment
  CAS-BOT-BC526238  Gazania Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo San Bruno Mountains; near Picnic Area Comment
  CHSC23145  Genista monspessulana Robert A. Schlising 1962-2-24 2082 San Mateo California Coast Range. On dry roadbank near La Honda. Comment
  JROH2014  Genista monspessulana John Hunter Thomas 1983-4-14 21407 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  JROH3154  Gilia achilleifolia subsp. multicaulis John H. Thomas 1971-4-25 15783 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH3164  Gilia clivorum John H. Thomas 1971-4-10 15756 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  RSA128833  Gnaphalium beneolens Roxana S. Ferris 1920-9-3 2052 San Mateo Near upper Mud Lake, Coal Mine Ridge, Santa Cruz Mountain Peninsula Comment
  RSA218022  Gnaphalium californicum Walter Knight, I. Knight 1964-4-13 711 San Mateo Power Line Ridge Comment
  RSA17890  Gnaphalium chilense C. B. Wolf 1927-6-15 s.n. San Mateo Skyline Boulevard, S of San Francisco Comment
  SEINET11849363  Gnaphalium chilense L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt. 1 Comment
  POM358849  Gnaphalium luteoalbum L. S. Rose 1936-2-12 36005 San Mateo Burlingame. 91 Comment
  RSA218004  Gnaphalium ramosissimum Walter Knight, I. Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge; Plants of San Bruno Mountain. Comment
  SD12565  Grindelia arenicola Edith A. Purer 1933-7-27 5369 San Mateo 2 miles south of Pigeon Point Comment
  CAS-BOT-BC304509  Grindelia hirsutula Paul H. Arnaud, Jr. 1963-9-15 s.n. San Mateo Redwood City Comment
  CAS-BOT-BC304514  Grindelia hirsutula J. H. Thomas 1954-5-28 4233 San Mateo Along Bayshore Highway about 2 mi. south of San Francisco Airport Comment
  CAS-BOT-BC304546  Grindelia hirsutula Peter H. Raven 1957-9-1 11297 San Mateo State Highway 1 at junction of Tunitas Creek Comment
  JEPS41871  Grindelia hirsutula W. L. Jepson 1896-1 San Mateo Santa Cruz Mountains Comment
  SEINET3146830  Grindelia hirsutula L. S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  UC1599358  Grindelia hirsutula L. R. Heckard 1961-7-16 1264 San Mateo across road from transmitting station KQED (near summit of mt.); San Bruno Mt. 335 Comment
  UC520390  Grindelia hirsutula Delzie Demaree 1933-6-23 10378 San Mateo Pigeon Point Comment
  RSA93068  Grindelia hirsutula var. hirsutula D. D. Keck 1932-5-25 1783 San Mateo Hills 2 miles W of Belmont Comment
  RSA18345  Grindelia stricta var. platyphylla C. B. Wolf 1927-1-29 473 San Mateo Pescadero Comment
  SEINET11849180  Haplopappus ericoides E. A. Purer 1933-1 5511 San Mateo Skyline Drive Comment
  CAS-BOT-BC309543  Helenium puberulum A. D. E. Elmer 1903-7-1 4972 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC309545  Helenium puberulum John Thomas Howell 1939-6-16 14744 San Mateo Crystal Springs Lake 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
  UC943014  Helenium puberulum Lewis S. Rose 1949-8-10 49157 San Mateo Skyline Blvd. w Tanforan 121 Comment
  RSA18443  Helenium puberulum C. B. Wolf 1927-6-29 565 San Mateo 3 miles south of San Gregorio. Comment
  JROH854  Helianthella californica var. californica John Hunter Thomas 1980-5-8 19942 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH850  Helianthella californica var. californica John H. Thomas 1963-5-1 10043 San Mateo Jasper Ridge Biological Preserve, Stanford University; at western end of ridge Comment
  CAS-BOT-BC305333  Helianthella castanea Miss E. Cannon 1899-9-1 s.n. San Mateo South San Francisco hills Comment
  JROH1833  Helianthemum scoparium John H. Thomas 1961-6-14 9537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176823  Helianthemum scoparium var. scoparium John H. Thomas 1961-5-5 9220 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. 152 Comment
  CAS-BOT-BC305630  Helianthus californicus L. R. Abrams 1902-9-21 2989 San Mateo Woodside - Crystal Springs Comment
  SD39698  Heliotropium curassavicum Edith A. Purer 1932-7-18 4010 San Mateo Half Moon Bay Comment
  CAS-BOT-BC305929  Helminthotheca echioides Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  JROH1167  Helminthotheca echioides John H. Thomas 1970-7-5 15668 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC314910  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-4-29 203 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  JEPS40999  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-9-5 64070 San Mateo w Redwood City; Emerald Lake 243 Comment
  JROH865  Hemizonia congesta subsp. luzulifolia John H. Thomas 1967-11-5 14129 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH866  Hemizonia congesta subsp. luzulifolia John H. Thomas 1967-11-5 14129 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC314908  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1929-9-29 4421 San Mateo Searsville Lake Comment
  CAS-BOT-BC314926  Hemizonia congesta subsp. luzulifolia W. R. Dudley 1894-4-21 s.n. San Mateo Crystal Springs Comment
  SEINET7883474 Image available Hemizonia congesta var. luzulifolia Lewis S. Rose 1937-1 37662 San Mateo Emerald Lake, W. of Redwood City 183 Comment
  UCR66751  Hemizonia corymbosa Edith A. Purer 1933-7-27 5339 San Mateo Central Coast, Pigeon Point 15 Comment
  POM56175  Hemizonia corymbosa subsp. corymbosa C. F. Baker 1902-10-1 1739 San Mateo Pillar Point. Comment
  SEINET7883265 Image available Hemizonia grandiflora L. R. Abrams 1914-1 5140 San Mateo Crystal Springs; at the type station Comment
  RSA133900  Hemizonia luzulifolia John H. Thomas 1958-6-11 7228 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  RSA107063  Hemizonia luzulifolia L. S. Rose 1956-5-28 56082 San Mateo Skyline Blvd W of San Mateo. 183 Comment
  RSA81678  Hemizonia luzulifolia James I. McMurphy 1907-8-6 s.n. San Mateo E of causeway, Crystal Springs Lakes. Comment
  SEINET7883478 Image available Hemizonia luzulifolia Lewis S. Rose 1941-1 41470 San Mateo Belmont 6 Comment
  RSA212183  Hemizonia luzulifolia subsp. rudis L. S. Rose 1970-7-26 70078 San Mateo Hillsborough, Black Mountain, Skyline Blvd. 122 Comment
  UC1084378  Heracleum lanatum G. Thomas Robbins 1937-4-11 75 San Mateo along Skyline Blvd. s. of San Francisco Comment
  JROH250  Heracleum maximum John H. Thomas 1975-4-30 17845 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18317  Heracleum maximum C. B. Wolf 1929-5-20 3720 San Mateo No. end of Searsville Lake. Comment
  POM287748  Heracleum maximum Lyman Benson 1931-4-13 2710 San Mateo Behind Stanford University, bottom land at junction with Corte Madera Creek Comment
  RSA159409  Hesperolinon congestum John H. Thomas 1961-5-14 9379 San Mateo Just north of dam on San Mateo Creek. 122 Comment
  SJSU7855  Hesperolinon congestum J. R. Verbarg 1955-5-14 San Mateo Redwood City Hills back of Redwood City Comment
  JROH2928  Hesperolinon micranthum John H. Thomas 1969-6-4 15107 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2938  Hesperolinon micranthum John Hunter Thomas 1992-5-25 25342 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-BC148469  Heteromeles arbutifolia Walter Knight; Irja Knight 1965-4-11 1001 San Mateo Guadalupe Road - San Bruno Mountain Comment
  CAS-BOT-BC148472  Heteromeles arbutifolia Cherie Wetzel 1969-7-8 919 San Mateo Serpentine near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JROH3675  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge Biological Preserve, Stanford University. North central portion of ridge Comment
  JROH3676  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge Biological Preserve, Stanford University. North central portion of ridge Comment
  SD49795  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. North central portion of ridge. 152 Comment
  RSA0074498  Heterotheca camphorata L. R. Abrams 1901-09 2228 San Mateo Menlo Park. Comment
  JROH907  Heterotheca grandiflora John Hunter Thomas 1991-11-21 25110 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor 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
  OBI16088  Heterotheca sessiliflora subsp. bolanderi Lewis S. Rose 1966-8-20 66087 San Mateo San Bruno Mtn, summit 366 Comment
  CAS-BOT-BC310764  Heterotheca sessiliflora subsp. echioides W. R. Dudley 1906-10-12 s.n. San Mateo Santa Cruz Mountain Peninsula. In Gulch E. of Jersey Farm Comment
  CAS-BOT-BC310770  Heterotheca sessiliflora subsp. echioides C. F. Leitholt 1894-7-30 s.n. San Mateo Santa Cruz Mountain Peninsula. La Honda road Comment
  UCR121560  Heuchera micrantha George K. Helmkamp, E. A. Helmkamp 1999-6-28 4975 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  UC729863  Heuchera micrantha var. diversifolia Carl B. Wolf 1929-6-8 3747 San Mateo along head of San Francisquito Creek; Searsville Lake 91 Comment
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Jul 14 2009
  CAS-BOT-BC420899  Heuchera micrantha var. erubescens D. E. Breedlove 1973-9-26 35563 San Mateo Pescadero Creek County Park 365 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
  RSA0063102  Heuchera micrantha var. hartwegii G. Oberlander 1950-5-28 955 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  SEINET9737076  Heuchera micrantha var. pacifica L. S. Rose 1941-7-2 41289 San Mateo Kings Mountain 600 Comment
  CAS-BOT-BC424428  Heuchera pilosissima Ira L. Wiggins 1925-5-24 1742 San Mateo Along county road from Pescadero to Pebble Beach just before coming to the artichoke lands of the American Produce Co. Comment
  UC897793  Hieracium albiflorum Lewis S. Rose 1939-6-16 39279 San Mateo Kings Mountain 670 Comment
  OBI49218  Hieracium albiflorum Lewis S. Rose 1939-6-16 39279 San Mateo Kings Mtn 671 Comment
  UCR121585  Hieracium argutum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4964 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
  UC822103  Hierochloe occidentalis L. R. Abrams 1904-3-7 San Mateo Bear Gulch Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC55435  Hirschfeldia incana Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountains. Lower part of Colma Canyon. Comment
  JROH5213  Holcus lanatus John Hunter Thomas 1982-6-7 21033 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
  SEINET10591390  Holcus lanatus Delzie Demaree 1933-6-12 Demaree 10374 San Mateo Bader Station. S. San Francisco. Small bottom. Comment
  LA207940  Holodiscus discolor David D. Keck; 1932-6-1 1795 San Mateo Santa Cruz Mountains, Above Searsville Lake, on road between Woodside and Skyline Blvd Comment
  NY42430  Holodiscus discolor J. B. Walker 1994-8-14 908 San Mateo Pomponio Creek Rd, 5km S of junction of Hwy 84 & Hwy 1 10 Comment
  RSA112372  Holodiscus discolor Lucile Roush 1918-3-31 s.n. San Mateo Santa Cruz Peninsula; Sierra Morena. Comment
  JROH3693  Holodiscus discolor var. discolor John Hunter Thomas 1978-7-2 19249 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC284676  Hordeum brachyantherum subsp. brachyantherum Peter H. Raven 1950-6-3 2214 San Mateo Along Millbrae Ave., Millbrae 60 Comment
  CAS-BOT-BC284681  Hordeum brachyantherum subsp. brachyantherum A. D. E. Elmer 1903-6-1 4851 San Mateo Crystal Springs Lake Comment
  SEINET10826894  Hordeum brachyantherum subsp. brachyantherum Adolph D. E. Elmer Elmer 4851 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC289533  Hordeum brachyantherum subsp. californicum Ned Cahill 1974-4-29 183 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi westward from Redwood City Comment
  JROH5221  Hordeum brachyantherum subsp. californicum John H. Thomas 1973-6-10 16820 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5231  Hordeum brachyantherum subsp. californicum W. Lennihan 1989-5-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Left of fire road F going north, across from experimental tall poles. Comment
  CAS-BOT-BC285047  Hordeum depressum Le Roy Abrams 1901-5-1 1651 San Mateo Cooley's Landing Comment
  CAS-BOT-BC285153  Hordeum marinum subsp. gussoneanum Le Roy Abrams 1901-5-1 1660 San Mateo Cooley's Landing Comment
  JROH5236  Hordeum marinum subsp. gussoneanum John H. Thomas 1963-5-12 10081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5251  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1992-5-14 25227 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5778  Hordeum marinum subsp. gussoneanum John Rawlings 2016-4-19 1725 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E at Trail 11 108 Comment
  JROH5255  Hordeum murinum subsp. leporinum John H. Thomas 1962-5-31 9899 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5261  Hordeum murinum subsp. leporinum John Rawlings 2013-3-24 1125 San Mateo Jasper Ridge Biological Preserve, Stanford University; grassy verge of Rd C at Rd D intersection 158 Comment
  JEPS34468  Horkelia californica L. R. Heckard and R. Bacigalupi 1963-7-2 1357 San Mateo Trail to Montara Peak (NW slope) above old county road 304 Comment
  CAS-BOT-BC536145  Horkelia californica J. W. Congdon 1897-8-11 s.n. San Mateo San Gregorio Comment
  UC204150  Horkelia cuneata subsp. sericea A. D. E. Elmer April, 1903 5036 San Mateo near Colma (cemeteries) Comment
  UCD77838  Hosackia stipularis Robert E. Preston 2001-6-1 1538 San Mateo Ca. 7 mi nw of Boulder Creek. 658 Comment
  CDA5497  Hydrocotyle moschata E. L. Labadie 1962-3-15 San Mateo Jack Fujiki property, 135 N. Idaho, San Mateo . 0 Comment
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Aug 7 2014
  UCD128238  Hydrocotyle sibthorpioides O. M. Scott and Sons 1950-4-10 s.n. San Mateo San Mateo. Comment
  CAS-BOT-BC166763  Hypericum anagalloides Peter Rubtzoff 1976-6-30 8704 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA18359  Hypericum androsaemum C. B. Wolf 1929-5-25 3729 San Mateo Pebble Beach, S of Pescadero. Comment
  JEPS105544  Hypericum canariense Vern Yadon s. n. San Mateo S of Garzas Creek and N of Ano Nuevo; E side of Hwy 1 Comment
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Oct 31 2021
  RSA739721  Hypericum canariense John Dittes, Josephine Guardino 2007-6-30 1457 San Mateo Undesignated section of Punta Del Ano Nuevo Lant Grant, Central Coast, Ano Nuevo State Reserve, coastal terrace 2.4 air mile SE of Pidgeon Point Lighthouse, E side of Hwy 1 on slope S and E of Gazos Creek. 21 Comment
  UCD160238  Hypericum canariense Christopher Dillis 2015-5-15 2 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  JROH923  Hypochaeris glabra John Hunter Thomas 1989-5-9 24720 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH942  Hypochaeris radicata John Hunter Thomas 1991-6-9 25067 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Main Gate off Sand Hill Road Comment
  CAS-BOT-BC311486  Hypochaeris radicata Roxana S. Ferris 1917-10-19 727 San Mateo Crystal Springs Lakes Comment
  JROH5615  Iris douglasiana John Rawlings 2014-4-11 1218 San Mateo Jasper Ridge Biological Preserve, Stanford University; confluence of Bear and San Francisquito creeks just east of the terminus of Trail 20 growing at edge of the steep bank of San Francisquito Creek. 82 Comment
  SD38480  Iris douglasiana Edith A. Purer 1933-5-5 3633 San Mateo Alpine Road. Comment
  UC1537236  Iris douglasiana Gordon H. True Jr. 1936-4-5 392 San Mateo canyon between San Gregorio and Salada Beach 304 Comment
  UCR198043  Iris douglasiana S. Seiki, Patricia Carter 1998-5-2 02 San Mateo Montara Mountain, city of Pacifica, c. 2.4 mi from San Pedro Valley along Devil's Slide heading west Comment
  RSA171165  Iris douglasiana Robert F. Thorne, Percy C. Everett 1963-6-9 32240 San Mateo On top of San Bruno Mountain. 335 Comment
  SEINET12049523  Iris douglasiana D. D. Keck 1932-1 1486 San Mateo just W of Millbrae Highlands 120 Comment
  SEINET8529508 Image available Iris douglasiana Phyllis Kuehn 1967-5-7 18 San Mateo Skyline Blvd. Comment
  UC143469  Iris douglasiana Alice Eastwood Apr 1898 San Mateo Purissima Comment
  UCSB18695  Iris douglasiana Hutchinson, Sandra 1964-3-24 San Mateo Crystal Springs Lake; Sawyer Camp Road; about 0.6 mile from Skyline Blvd; entrance off of Millbrae Ave 106 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-BC112611  Isolepis cernua John Hunter Thomas 1963-7-19 10181 A San Mateo Ano Nuevo Point. Comment
  UC652559  Juncus ambiguus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9291 San Mateo Ano Nuevo Point Comment
  JROH4448  Juncus bolanderi Ann Lambrecht 2004-7-21 12 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Corte Madera Creek. Comment
  UC1101045  Juncus bufonius Herbert L. Mason 1949-7-7 14028 San Mateo Mouth of Gazos Creek Comment
  JROH5946  Juncus bufonius var. bufonius John Rawlings 2017-4-9 2016 San Mateo Jasper Ridge Biological Preserve, Stanford University; along entrance road near Sand Hill Gate 117 Comment
  POM259790  Juncus bufonius var. bufonius I. L. Wiggins, Roxana S. Ferris 1939-8-2 9291 San Mateo Ano Nuevo Point Comment
  JEPS10200  Juncus bufonius var. congestus Rimo Bacigalupi with G. T. Robbins 1954-6-18 4559 San Mateo Point Ano Nuevo Comment
  CHSC115873  Juncus effusus subsp. pacificus J. Rawlings 2013-7-23 2001 San Mateo Near Searsville Landing, W shore of Searsville Lake, Jasper Ridge Biological Preserve, Sand Brancisco Bay subregion. 105 Comment
  UC1101030  Juncus hesperius Verne Grant and Herbert L. Mason 1946-8-28 13081 San Mateo n of San Francisco county prison Comment
  JROH4480  Juncus occidentalis John H. Thomas 1974-4-4 17080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4482  Juncus occidentalis John Hunter Thomas 1978-5-16 19214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM292635  Juncus patens Lyman Benson 1937-7-15 8451 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains. 244 Comment
  RSA132400  Juncus patens John H. Thomas 1959-7-8 8023 San Mateo About 1/2 mile S of Pescadero beach along the coast highway. Comment
  CAS-BOT-BC176165  Juncus patens Peter Rubtzoff; Roman Gankin 1975-9-11 8375 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UC1601805  Juncus phaeocephalus J. Burtt Davy 1893-6-22 756 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  CAS-BOT-BC210054  Juncus phaeocephalus Peter Rubtzoff 1976-6-30 8706 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  CAS-BOT-BC227614  Juncus phaeocephalus Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. Shearwater 22 Comment
  RSA783798  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1980-8-4 9563 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  POM190537  Juncus phaeocephalus var. phaeocephalus D. D. Keck 1932-5-6 1456 San Mateo Belmont. Comment
  SJSU16014  Juncus xiphioides John Rawlings, Ken Hickman 2016-5-26 1811 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CDA32415  Koeleria P. B. Kennedy 1928-5-2 San Mateo Hills east of Daly City 0 Comment
  JROH5265  Koeleria macrantha H. J. Dengler 1961-4-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Lower serpentine margin of gully on east serpentine near first or east-most enclosure. Comment
  SJSU1653  Koeleria macrantha D. R. Fincher 1955-5-29 San Mateo corner of Canada Road & Edgewood Road, San Mateo 503 Comment
  CAS-BOT-BC272321  Lachnagrostis filiformis Peter H. Raven 1950-6-3 2272 San Mateo San Andreas Lake 121 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
  JROH946  Lactuca saligna John H. Thomas 1976-10-16 18415 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
  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
  JROH959  Lagophylla ramosissima John H. Thomas 1961-4-29 9192 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH961  Lagophylla ramosissima John H. Thomas 1969-5-28 15087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2779  Lamium amplexicaule John H. Thomas 1979-4-7 19442 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC339050  Lasthenia californica Lewis S. Rose 1961-4-5 61033 San Mateo San Bruno Mountains 365 Comment
  CAS-BOT-BC339060  Lasthenia californica John H. Thomas 1961-5-7 9251 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC339049  Lasthenia californica Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC339094  Lasthenia californica W. R. Dudley 1899-5-14 s.n. San Mateo About hills southwest of Baden Comment
  UC762042  Lasthenia californica subsp. californica R. F. Hoover 1939-4-21 4055 San Mateo 2 mi s of Colma Comment
  CAS-BOT-BC324429  Lasthenia californica subsp. macrantha H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC355539  Lasthenia glabrata var. glabrata John H. Thomas 1956-4-8 5629 San Mateo Near Bayshore Highway about 2 miles east of Redwood City Comment
  CAS-BOT-BC355541  Lasthenia glabrata var. glabrata John H. Thomas 1971-5-2 15794 San Mateo Near intersection of Canada Road and Edgewater [Edgewoodf?] Road, about 3 miles westward from Redwood City 152 Comment
  CAS-BOT-BC360403  Lasthenia glabrata var. glabrata Ned Cahill 1974-4-23 166 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC361417  Lasthenia maritima Sue Roberts 1954-5-1 69 San Mateo Pescadero Beach Comment
  CAS-BOT-BC368184  Lasthenia minor John H. Thomas 1967-5-7 12834 San Mateo Pigeon Point. Altitude about sea level. Near Lighthouse. Comment
  UCD133845  Lasthenia minor June McCaskill 1954-5-8 295 San Mateo Moss Beach. Comment
  SFV3758  Lasthenia minor B. J. McCaskill 1954-5-8 295 San Mateo Moss Beach. On bank above beach. Comment
  RSA406617  Lathyrus Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC204916  Lathyrus Elizabeth McClintock 1972-5-10 s.n. San Mateo San Bruno Mountain. Just belong Parking Lot at the summit Comment
  SEINET5630609 Image available Lathyrus Unknown 1907-1 8583 San Mateo Back of San Mateo, on the Half Moon Bay road 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
  SEINET12153905  Lathyrus littoralis M. T. Doutt 1931-1 244 San Mateo S of San Francisco, nr Salada Comment
  UCD106475  Lathyrus vestitus A. A. Heller 1907-4-20 8454 San Mateo San Bruno Hills. Comment
  POM16718  Lathyrus vestitus subsp. vestitus A. D. E. Elmer 1903-05 4745 San Mateo Kings Mountain. Comment
  POM223333  Lathyrus vestitus subsp. vestitus L. S. Rose 1935-5-29 35191 San Mateo Kings Mountain Comment
  RSA120413  Lathyrus vestitus subsp. vestitus Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  UCD106536  Lathyrus vestitus var. ochropetalus A. A. Heller 1907-5-28 8583 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  JEPS55372  Lathyrus vestitus var. vestitus R. L. Pendleton 1907-4-20 626 San Mateo Colma 182 Comment
  UC202762  Lathyrus vestitus var. vestitus A. D. E. Elmer May 1903 4745 San Mateo San Mateo Comment
  UC85315  Lathyrus vestitus var. vestitus C. F. Baker 1902-1-15 240 San Mateo w side Kings Mountain Comment
  UC864588  Lathyrus vestitus var. vestitus Lewis S. Rose 1932-5-3 32208 San Mateo San Bruno 182 Comment
  RSA176876  Lavatera cretica John H. Thomas 1964-4-30 10335 San Mateo Near intersection of El Camino Real and F St, Colma Comment
  CAS-BOT-BC323183  Layia chrysanthemoides Donald A. Johansen 1933-5-27 803 San Mateo Along Skyline Boulevard at junction of side road leading to Burlingame Comment
  CAS-BOT-BC321096  Layia gaillardioides W. R. Dudley 1905-6-19 s.n. San Mateo Alpine School, Black Mt. Comment
  CAS-BOT-BC321116  Layia gaillardioides David D. Keck 1932-5-11 1763 San Mateo La Honda road 2 miles W of Skyline Blvd. Comment
  CAS-BOT-BC327460  Layia hieracioides Fred Hemphill 1973-4-15 689 San Mateo San Carlos. Chaparral area N of Malabar Rd and Melendy Dr. 207 Comment
  CAS-BOT-BC327506  Layia hieracioides L. R. Abrams 1907-8-26 s.n. San Mateo King's Mt. Comment
  JROH990  Layia hieracioides John Hunter Thomas 1983-4-21 21636 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM284972  Layia hieracioides Lyman Benson 1930-5-26 2130 San Mateo Stanford University; Lake Searsville. 152 Comment
  UC913102  Layia hieracioides David D. Keck and Wm. M. Hiesey 1940-6-1 5166 San Mateo opposite n end of Lake San Andreas; Skyline Boulevard 135 Comment
  UCR256306  Layia hieracioides Peter Rubtzoff, Roman Gankin, Elizabeth McClintock, Bill Burley 1979-6-7 9289 San Mateo Central Coast, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains 220 Comment
  CAS-BOT-BC327527  Layia hieracioides James I. McMurphy 1909-5-25 s.n. San Mateo Grade W of Crystal Springs Lakes Comment
  RSA0036458  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. In East Fork Colma Creek Canyon area. Comment
  CAS-BOT-BC382083  Layia platyglossa Arthur Spiegler 1969-6-20 884 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC382085  Layia platyglossa Ned Cahill 1975-1-8 392 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC382222  Layia platyglossa Donald A. Johansen 1932-5-21 688 San Mateo One-half mile N of Pigeo Point Light HOuse Comment
  JROH994  Layia platyglossa John H. Thomas 1966-4-21 11564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC382215  Layia platyglossa David D. Keck 1933-5-11 2305 San Mateo Skyline Blvd., east of Salada, northern San Mateo County Comment
  SEINET5712167  Layia platyglossa R. E. Dengler 1960-1 11 San Mateo Jasper Ridge, Stanford Biological Reserve.; Stanford Biological Reserve 191 Comment
  POM284976  Layia platyglossa subsp. campestris Arthur L. Cohen 1935-4-21 624 San Mateo Jasper Ridge; Mt.Range: Coast; Watershed: Searsville. 183 Comment
  POM298330  Layia platyglossa subsp. platyglossa D. D. Keck 1932-5-6 1491 San Mateo East side of Crystal Springs Lake. 61 Comment
  JEPS33102  Lemna gibba A. D. E. Elmer July, 1903 4765 San Mateo San Pedro 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-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
  CAS-BOT-BC221539  Lepechinia calycina Alice Eastwood 1912-6-10 338 San Mateo Crystal Springs Comment
  CDA34569  Lepechinia calycina M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 875 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  JROH2784  Lepechinia calycina John H. Thomas 1955-5-6 5015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2790  Lepechinia calycina John H. Thomas 1971-5-30 15970 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2792  Lepechinia calycina John H. Thomas 1973-5-5 16769 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA64432  Lepechinia calycina Lewis S. Rose; 1933-6-9 33225 San Mateo Belmont Comment
  CAS-BOT-BC221528  Lepechinia calycina L. R. Abrams 1909-5-26 4244 San Mateo Santa Cruz Peninsula. Canon [Canyon] between Dingee Park and Crystal Lake Comment
  CAS-BOT-BC89130  Lepidium didymum J. H. Thomas 1958-8-1 7370 San Mateo About 0.5 mile north of mouth of Pescadero Creek. 0 Comment
  CAS-BOT-BC89219  Lepidium draba J. H. Thomas 1956-4-27 4920 San Mateo Along Bayshore Highway, east of San Carlos. Comment
  UCR47850  Lepidium draba Cynthia Taylor 1971-6-8 147 San Mateo Atherton, corner of Watkins Ave. and railroad tracks 17 Comment
  JEPS127808  Lepidium nitidum Adam C. Schneider with C. Matt Guilliams 2013-4-7 70 San Mateo Along dirt road running parallel to overhead power lines. GPS coordinates approximate. Comment
  SBBG29869  Lepidium oxycarpum D. D. Keck 1932-3-24 1401 San Mateo Redwood City, at the border of San Francisco Bay Comment
  CAS-BOT-BC12952  Lepidium strictum George Oberlander 1949-6-25 229 San Mateo San Francisco Watershed Reserve. On northern Cahill Ridge. Comment
  CDA32442  Leptochloa fascicularis I. J. Campbell 1959-12-14 San Mateo San Miguel 0 Comment
  CAS-BOT-BC226602  Leptosiphon ambiguus John H. Thomas 1971-5-2 15866 San Mateo Near intersection of Canada Road and Edgewater [Edgewood] Road, about three miles westward from Redwood City 152 Comment
  SD27819  Leptosiphon androsaceus Carl B. Wolf 1929-5-25 3731 San Mateo Pebble Beach, south of Pescadero. Comment
  RSA12467  Leptosiphon androsaceus Harry A. Dutton 1900-4-3 5827 San Mateo Woodside serpentine [?] Comment
  RSA8491  Leptosiphon androsaceus L. S. Rose 1933-4-30 33135 San Mateo Redwood City Comment
  JROH3181  Leptosiphon bicolor John Rawlings, Ann Lambrecht 2013-4-30 1168 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the verge of Rd B 75 Comment
  POM128438  Leptosiphon liniflorus L. R. Abrams 1902-5-4 2416 San Mateo Woodside. Comment
  SD38816  Leptosiphon liniflorus Marie Cummings 1933-5-23 3718 San Mateo Spring Valley Comment
  JROH3186  Leptosiphon parviflorus H. A. Borthwick 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5708  Leptosiphon parviflorus John Rawlings 2015-3-15 1351 San Mateo Jasper Ridge Biological Preserve, Stanford University; Rd. D. 110 Comment
  UC964718  Leptosiphon parviflorus Herbert L. Mason 1935-5-21 8315 San Mateo Pebble Beach Pescadero Comment
  RSA0103656  Leptosiphon parviflorus H. L. Mason 1935-5-21 8315 San Mateo Pebble Beach, Pescadero. Comment
  RSA0103660  Leptosiphon parviflorus Arthur L. Cohen 1935-4-21 629 San Mateo Jasper Ridge, Stanford U. Santa Cruz Range; San Francisco Bay watershed. 152 Comment
  SD38813  Leptosiphon parviflorus Edith A. Purer 1933-4-25 3640 San Mateo Comment
  SD38815  Leptosiphon parviflorus Miss Cummings, McCallum 1933-4-26 3714 San Mateo Hills back of Stanford Campus. Comment
  UC106678  Leptosiphon rosaceus Katharine Brandegee 1905-6-19 San Mateo Moss Beach Halfmoon Bay Comment
  UCD78147  Leptospermum laevigatum Robert E. Preston 2008-4-1 2599 San Mateo Lower Crystal Springs Reservoir, 0.12 mi SW of jct Hwy 92 and Hwy 35 92 Comment
  CAS-BOT-BC324054  Lessingia arachnoidea John Thomas Howell 1927-5-10 2388 San Mateo Crystal Springs Lake 213 Comment
  CAS-BOT-BC324064  Lessingia arachnoidea David D. Keck 1931-10-5 1280 San Mateo Crystal Springs Lake, east side. Comment
  SBBG39542  Lessingia arachnoidea L. S. Rose 1970-7-26 70077 San Mateo Skyline Blvd., Hillsborough, Black Mtn 121 Comment
  SEINET879065 Image available Lessingia bakeri C. F. Baker 1902-1 1834 San Mateo Searsville. Comment
  SJSU15428  Lessingia germanorum Toni Corelli 2011-9-14 720 a San Mateo Northeast of Hillside Park, above houses 107 Comment
  CAS-BOT-BC324180  Lessingia hololeuca Ned Cahill 1974-8-26 372 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  RSA169310  Lessingia hololeuca L. S. Rose 1964-9-5 s.n. San Mateo Emerald Lake, W of Redwood City. 244 Comment
  UC905072  Leucanthemum vulgare John Thomas Howell 1949-7-4 24356 San Mateo n of Millbrae; Skyline Blvd. Comment
  CAS-BOT-BC342091  Leucanthemum vulgare Elizabeth McClintock; Paul Reeberg 1987-6-12 s.n. San Mateo San Bruno Mountains. Along road to Camp Silverspot Comment
  CAS-BOT-BC272276  Leymus mollis J. H. Thomas 1963-5-11 10076 San Mateo Pescadero Beach Comment
  UCD64581  Leymus mollis Beecher Crampton 1962-6-11 6511 San Mateo Sharp Park, Mori's Point. Comment
  CAS-BOT-BC272186  Leymus triticoides Paul Reeberg 1988-10-31 s.n. San Mateo At mouth of ravine west of quarry, San Bruno Mountains Comment
  CAS-BOT-BC436530  Ligusticum apiifolium Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain, below parking lot Comment
  JROH2983  Ligustrum lucidum Ann Lambrecht, Paul Heiple 2008-1-9 39 San Mateo Jasper Ridge Biological Preserve, Stanford University; on Trail c Comment
  SEINET7876343 Image available Ligustrum vulgare A. T. Whittemore 2001-1 01 -020 San Mateo Garden of 418 Hillway Dr., Redwood City 98 Comment
  POM296492  Lilaea scilloides Lyman Benson 1931-5-16 2803 San Mateo San Mateo, alt 300ft. 91 Comment
  SEINET11764872  Lilaea scilloides Unknown 1932-5-30 9189 San Mateo Lakes Los Francos Woods Comment
Read comments
Nov 1 2021
  SEINET12182117  Limnanthes douglasii Unknown 1932-1 9103 San Mateo Roadside between Spring Valley Lakes and Sky Line Drive Comment
  JROH4058  Limosella acaulis John Hunter Thomas 1982-8-13 21136 San Mateo Jasper Ridge Biological Preserve, Stanford University. Lake edge and in water Comment
  UC885935  Limosella acaulis Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9294 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC238361  Limosella aquatica L. R. Abrams; I. L. Wiggins 1939-6-3 424 San Mateo Ano Nuevo Point Comment
  JEPS83043  Linanthus liniflorus Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 431 San Mateo ca 0.5 km ne Pilarcitos Dam (and 7.5 km nw of the intersection of Calif Hwys 35 and 92, near crest of Cahill Ridge, w of gravel rd, overlooking Pilarcitos Lake); San Francisco Watershed Reserve 289 Comment
  RSA217987  Linaria canadensis var. texana Phillip Wheeler 1965-5-11 s.n. San Mateo West ravine of Pig Ranch Canyon. Comment
  SEINET5629646 Image available Linum congestum Unknown 1907-1 8572 San Mateo Above Crystal Springs Comment
  CAS-BOT-BC389719  Lithocarpus densiflorus Virginia Welch 1972-9-25 63 San Mateo King Mt. Rd. above Huddart Park Entrance Comment
  CAS-BOT-BC389735  Lithocarpus densiflorus J. Lovelle 1973-7-29 26 San Mateo Pescadero Cr. Comment
  UC1135272  Lithocarpus densiflorus C. M. Belshaw 1935-1-25 1472 San Mateo 2.5 mi nw Sierra Moreno Peak; Santa Cruz Quad. 609 Comment
  SEINET8912914  Lithocarpus densiflorus A. D. 1974-1 San Mateo California 35, about 5 miles from junction with 92 701 Comment
  CAS-BOT-BC36026  Lithocarpus densiflorus var. densiflorus Ira L. Wiggins 1925-4-1 1661 San Mateo On Kings Mountain Road one mile above Woodise just above the first Pseudotsuga menziesii on the right edge of the road Comment
  JROH3889  Lithophragma affine John H. Thomas 1979-4-12 19449 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC430766  Lithophragma affine Evelina Cannon 1895-3-23 s.n. San Mateo South San Francisco Comment
  POM142561  Lithophragma affine subsp. affine C. F. Baker 1902-4-4 443 San Mateo Crystal Springs Lake Comment
  JROH3900  Lithophragma heterophyllum Brenda Butner and Toni Corelli 1990-3-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 3 Comment
  JROH3902  Lithophragma heterophyllum Brenda Butner and Toni Corelli 1990-3-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 3 Comment
  CAS-BOT-BC342308  Logfia filaginoides Peter H. Raven 1950-4-16 1803 San Mateo Summit ridge, San Bruno Mts. 243 Comment
  CAS-BOT-BC342307  Logfia filaginoides George Oberlander 1950-4-23 767 San Mateo San Francisco Watershed Reserve. Top of Cahill Ridge Comment
  CAS-BOT-BC342468  Logfia gallica J. H. Thomas 1961-5-14 9388 San Mateo Southern part of San Francisco Watershed Reserve near Roth Estate 152 Comment
  CAS-BOT-BC342467  Logfia gallica Peter H. Raven 1950-6-3 2198 San Mateo Along Millbrae Ave., Millbrae 60 Comment
  CAS-BOT-BC283221  Lolium multiflorum Elizabeth McClintock; Carlyn Halde; Walter & Irja Knight 1963-6-23 s.n. San Mateo San Bruno Mountains. Lower part of Colma Canyon Comment
  CAS-BOT-BC283229  Lolium multiflorum Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mile N of Pigeon Point and about 39 miles S of San Francisco Comment
  CAS-BOT-BC283232  Lolium multiflorum Fred Hemphill 1973-5-6 771 San Mateo San Carlos, N of Malabar Rd and Melendy Dr 243 Comment
  UCD66213  Lolium multiflorum Beecher Crampton 1962-6-11 6508 San Mateo Sharp Park, suburb of Pacifica, Mori's Point Road. Comment
  RSA585119  Lolium perenne D. D. Keck 1932-5-6 1474 San Mateo Millbrae Highlands Comment
  UCD66465  Lolium perenne Beecher Crampton 1962-6-11 6496 San Mateo North city limits of Pacifica, State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  JROH265  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1977-4-28 18565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH266  Lomatium dasycarpum subsp. dasycarpum John Hunter Thomas 1980-5-1 19910 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH254  Lomatium dasycarpum subsp. dasycarpum Anne Hornby 1952-5-10 111 San Mateo Jasper Ridge Biological Preserve, Stanford University; in hills above Searsville Lake Comment
  OBI8917  Lomatium macrocarpum Elena R. Goodwin 2014-5-1 s.n. San Mateo 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-BC240604  Lonicera hispidula Josephine D. Randall 1907-7-8 22 San Mateo Santa Cruz Peninsula. King's Mt. Road Comment
  SEINET12266796  Lonicera hispidula J. I. Murphy 1906-1 37 San Mateo Kings Mt. Santa Cruz Mts., Santa Cruz 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-BC243969  Lonicera involucrata var. ledebourii L. R. Abrams 1909-8-2 4252 San Mateo Between Pescadero and San Gregorio, Santa Cruz Peninsula Comment
  POM46728  Lonicera involucrata var. ledebourii A. D. E. Elmer 1903-06 4272 San Mateo Lake San Andreas. Comment
  UC1536785  Lonicera involucrata var. ledebourii G. H. True 1936-4-5 387 San Mateo canyon between San Gregorio and Pescadero 30 Comment
  UC729847  Lonicera involucrata var. ledebourii Carl B. Wolf 1929-5-25 3733 San Mateo 2 mi from Pescadero; Alpine Creek Comment
  CAS-BOT-BC243972  Lonicera involucrata var. ledebourii George Oberlander 1950-4-2 599 San Mateo South boundary, San Franciso Watershed Reserve Comment
  UC1321328  Lotus benthamii R. F. Hoover 1964-9-10 9290 San Mateo between Pedro Point and Montara; Devils Slide Comment
  SBBG25074  Lotus corniculatus D. Myrick 1966-6-11 1448 San Mateo near Pescadero off Hwy 1 Comment
  CAS-BOT-BC389704  Lotus corniculatus L. Sigal 1969-7-1 s.n. San Mateo Belmont Comment
  UC80969  Lotus formosissimus C. F. Baker 1902-5-1 689 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC60244  Lunaria annua Miss H. Thompson 1907-4-6 s.n. San Mateo Roadside near Woodside. Comment
  UC311196  Lupinus A. D. E. Elmer May, 1903 4526 San Mateo San Bruno Hills Comment
  UCR240782  Lupinus T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3514 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
  UC15757  Lupinus affinis Alice Eastwood April 1896 San Mateo near Crystal Springs; near Crystal Springs Comment
  JROH2113  Lupinus affinis H. J. Dengler 1972-3-26 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 100 yds. +/- Quercus chrysolepis site in field 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
  CAS-BOT-BC195793  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-22 48497 San Mateo Highway 5 - junction Pagemill Road, 0.5 miles north Comment
  CAS-BOT-BC195803  Lupinus albifrons var. albifrons Delzie Demaree 1933-8-13 10508 San Mateo Red-Wood [Redwood] City Comment
  CAS-BOT-BC195805  Lupinus albifrons var. albifrons Charles Piper Smith 1948-4-23 48149 San Mateo Canada Road - 4 miles north of Woodside Comment
  CAS-BOT-BC195820  Lupinus albifrons var. albifrons L. R. A. 1902-4-13 2340 San Mateo San Mateo Canon [Canyon] Comment
  CAS-BOT-BC195795  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-22 48498 San Mateo Highway 5 - junction Woodside 6 mile road, 2.8 miles north 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-BC196130  Lupinus albifrons var. collinus C. F. B. 1902-3-22 341 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC27394  Lupinus apricus C. P. Smith 1908-3-30 1374 San Mateo Stanford University, Cedro Cottage Field. Comment
  UC1354416  Lupinus arboreus Delzie Demaree 1933-6-12 10377 San Mateo South San Francisco Post Office, Baden Station Baden Station; South San Francisco Post Office, Baden Station Comment
  SEINET10488467  Lupinus arboreus Elizabeth M. McClintock; Walter Knight; Irja Knight; Baki Kasapligil, Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 McClintock s.n. San Mateo San bruno mountain. Colma canyon near old quarry Comment
  SEINET11548753  Lupinus arboreus Univ. of Calif. Bot. Gard. 1974-1 list 17 - 43 San Mateo San Mateo Co.;;;; Comment
  SEINET12154504  Lupinus densiflorus E. A. Purer 1933-1 5512 San Mateo along Skyline Drive Comment
  SEINET12154528  Lupinus densiflorus var. aureus G. A. McCallum 1933-1 s.n. San Mateo Los Franus ranch Comment
  SEINET10490752  Lupinus formosus var. formosus Walter Knight, Irja Knight 1964-9-2 Knight 723 San Mateo Foot of buckeye canyon in grassland. Comment
  SEINET10490754  Lupinus formosus var. formosus Charles Piper Smith 1922-6-17 Smith 3552 San Mateo Millbrae-lake pilarcitos. Comment
  SEINET10961856 Image available Lupinus latifolius Charles F. Baker Baker 470 San Mateo Crystal Springs Lake. Comment
  SEINET12154566  Lupinus latifolius Unknown 1932-1 8979 San Mateo nr entrance to Gov Rolph Estate Comment
  POM87760  Lupinus latifolius subsp. latifolius L. R. Abrams 1902-5-11 2449 San Mateo San Mateo Canyon. Comment
  JEPS23917  Lupinus latifolius var. latifolius W. R. Dudley 1895-6-7 4232 San Mateo top of ridge between Pescadero and Butano Creek; between Pescadero and Butano Creek Comment
Read comments
Feb 28 2011
  JROH2121  Lupinus latifolius var. latifolius John H. Thomas 1964-4-19 10331 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Searsville end of ridge Comment
  UC138024  Lupinus microcarpus var. microcarpus C. F. Baker 1902-5-1 850 San Mateo Crystal Springs Lake Comment
  HSC103498  Lupinus microcarpus var. microcarpus Thomas W. Nelson, Jane Nelson 1981-4-28 6460 San Mateo Along roadside, ~100 yds, E of junction of State Route 280 & 92. Comment
  JROH2126  Lupinus nanus John H. Thomas 1967-4-28 12723 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2131  Lupinus nanus John H. Thomas 1976-4-30 18100 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2136  Lupinus nanus John Hunter Thomas 1983-4-7 21334 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC138034  Lupinus nanus C. F. Baker 1902-4-12 507 San Mateo San Gregorio Comment
  SEINET10490839  Lupinus nanus subsp. nanus Walter Knight, Irja Knight 1967-6-6 Knight 2070 San Mateo Point san bruno. Comment
  POM10635  Lupinus polycarpus C. F. Baker 1903-4-8 1931 San Mateo Crystal Springs Lake. Comment
  SEINET10871083  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-15 Dunn 2545 San Mateo Collected in open lush meadow in the hilltops of the san francisco peninsula, On hwy. From woodside to la honda, 3.7 mi ne of la honda on the se side of the Hwy. Comment
  JEPS81168  Lupinus polyphyllus Edward Lee with H. L. Mason 1935-6-16 1529 San Mateo between Ano Nuevo and Franklin Point; between Ano Nuevo and Franklin Point Comment
  SD37926  Lupinus succulentus Delzie Demaree 1932-4-9 2135 San Mateo Comment
  CDA9351  Lupinus variicolor M. Beyers, S. Serkanic 2013-3-3 1033 San Mateo South of the parking turn-out and east of Highway 1. 101 Comment
  RSA177074  Lupinus variicolor John H. Thomas 1964-6-19 10432 San Mateo Near Pigeon Pt. Lighthouse. Comment
  SJSU16062  Lupinus variicolor Toni Corelli 2010-4-9 515 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica Comment
  UC1129743  Lupinus variicolor H. S. Yates 1935-2-3 5005 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quad. Comment
  POM290435  Luzula comosa Lyman Benson 1930-5-3 2102 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  JROH4524  Luzula comosa var. comosa John H. Thomas 1967-4-20 12712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5688  Luzula comosa var. comosa John Rawlings 2015-2-21 1280 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 6 near Rd F 150 Comment
  SJSU15904  Luzula comosa var. comosa John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1729 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC441370  Luzula subsessilis John H. Thomas 1965-4-29 10611 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH4166  Lycopersicon esculentum Toni Corelli 2002-10-11 249 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road H, below road inside JRBP that is parallel to Sand Hill Road 121 Comment
  JROH4165  Lycopersicon esculentum John Hunter Thomas 1981-10-25 20767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3375  Lysimachia minima John Hunter Thomas 1982-4-30 20883 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC28568  Lythrum hyssopifolia M. S. Taylor 1978-5-31 1874 San Mateo Ano Nuevo State Reserve. Comment
  UC138274  Lythrum hyssopifolia Katharine Brandegee 1905-6-1 San Mateo Colma Comment
  UC19773  Lythrum hyssopifolia J. Burtt Davy 1893-6-17 777 San Mateo Belmont Comment
  UCR122578  Lythrum hyssopifolia George K. Helmkamp, E. A. Helmkamp 2001-6-2 6794 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  RSA0011329  Lythrum hyssopifolia Carl B. Wolf 1929-6-8 3744 San Mateo East base of La Honda Grade. Comment
  RSA0011335  Lythrum hyssopifolia Josephine Randall 1907-6-29 247 San Mateo Portola Valley. Comment
  CAS-BOT-BC343908  Madia elegans A. D. E. Elmer 1903-5-1 4662 San Mateo Alpine School House Comment
  CAS-BOT-BC343910  Madia elegans Ned Cahill 1974-10-8 379 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JEPS121503  Madia elegans Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 299 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC343907  Madia elegans Bruce G. Baldwin 1985-10-19 547 San Mateo 3.3 miles south of junction with California State Highway 92 along Canada Road Comment
  JEPS27363  Madia exigua Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7623 San Mateo about copse edges on lateral ridge below and se of paved ridge-top road just e KRON television tower and station (on Guadalupe Valley side of mountain); San Bruno Mountain 304 Comment
  JROH1044  Madia exigua John H. Thomas 1969-5-28 15090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC344494  Madia exigua George Oberlander 1949-7-30 320 San Mateo San Francisco Watershed Reserve. Near Lower Crystal Spr. Lake 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
  JROH5633  Madia gracilis John Rawlings 2014-5-23 1229 San Mateo Jasper Ridge Biological Preserve, Stanford University. 20 meters west of Road C and 20 meters south of Trail 18. 127 Comment
  CAS-BOT-BC345142  Madia sativa J. H. Thomas 1959-8-16 8064 San Mateo About 2 miles SW of Pescadero 60 Comment
  CAS-BOT-BC353474  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
  JROH1103  Madia sativa John Hunter Thomas 1977-6-16 18763 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC913116  Madia sativa David D. Keck 1930-10-15 988 San Mateo sw Woodside; Coast Ranges 450 Comment
  CAS-BOT-BC345129  Madia sativa David D. Keck 1934-7-7 2941 San Mateo South of the mouth of Tunitas Creek Comment
  CAS-BOT-BC345132  Madia sativa David D. Keck 1941-7-1 1869 San Mateo Base of Montara Mountain, near Montara 91 Comment
  CAS-BOT-BC345137  Madia sativa W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Road Comment
  CAS-BOT-BC345138  Madia sativa George Oberlander 1950-6-3 1045 San Mateo San Francisco Watershed Reserve. On Sawyer Ridge Comment
  JROH4698  Maianthemum racemosum John Hunter Thomas 1985-4-22 23544 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC511479  Maianthemum racemosum subsp. amplexicaule Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  RSA195592  Maianthemum racemosum subsp. amplexicaule John H. Thomas 1967-5-7 12835 San Mateo Near intersections of Bean Hollow and Pescadero roads, about 0.5 mile westward from Pescadero. 61 Comment
  JROH4713  Maianthemum stellatum John Hunter Thomas 1981-4-5 20260 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC514164  Maianthemum stellatum Elmer I. Applegate 1895-4-6 709 b San Mateo Hillside above Stanford University Comment
  CAS-BOT-BC514170  Maianthemum stellatum Walter & Irja Knight 1965-3-21 991 San Mateo North facing slope of Power Line Ridge Comment
  RSA407375  Maianthemum stellatum Lyman Benson 1928-4-12 69 San Mateo Stanford University, Santa Cruz mountains, San Francisquito creek watershed; stream bank at Pest House 30 Comment
  UC762999  Malacothamnus davidsonii R. F. Hoover 1941-4-23 4906 San Mateo Redwood City hills Comment
  HSC16067  Malacothamnus fasciculatus J. Wendell Howe 1930-6-5 186 San Mateo Coast range W Palo Alto Comment
  JROH2958  Malacothamnus fasciculatus John H. Thomas 1962-6-6 9906 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  JEPS26401  Malacothamnus hallii J. W. Congdon 1902-7-20 San Mateo Spring Valley; vicinity of San Francisco Bay Comment
  JROH2968  Malva nicaeensis John Hunter Thomas 1980-5-20 19980 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA440955  Marah fabacea Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  RSA440956  Marah fabacea K. M. Stocking 1947-5-15 39 San Mateo 2 miles W of Redwood City, just E of Woodside. Comment
  UCSB17213  Matricaria discoidea Schulte, John 1963-4-28 San Mateo On top of Jasper Ridge, 3 miles southwest of Stanford campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC422674  Meconella californica C. F. Baker 1902-4-6 457 San Mateo Crystal Springs Lake Comment
  UC635442  Meconella californica H. L. Mason 1928-2-22 4162 San Mateo San Bruno Mtns Comment
  JROH2151  Medicago arabica John H. Thomas 1955-5-6 5010 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH2155  Medicago arabica John Hunter Thomas 1992-4-23 25156 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  JROH2165  Medicago polymorpha John H. Thomas 1967-5-10 12863 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2161  Medicago polymorpha John H. Thomas 1963-6-23 10174 & 10175 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  CAS-BOT-BC269446  Melica californica Phillip C. Wheeler 1965-5-18 s.n. San Mateo San Bruno Mountain. Base of the mountain near Olivet Cemetery Comment
  CAS-BOT-BC269473  Melica californica LeRoy Abrams 1901-5-1 1568 San Mateo Woodside Comment
  CAS-BOT-BC269475  Melica californica L. R. A. 1902-5-4 2407 San Mateo Woodside Comment
  JROH5307  Melica imperfecta John Hunter Thomas 1984-4-12 23296 San Mateo Jasper Ridge Biological Preserve, Stanford University. Path below dam in oak woodland. Comment
  JROH5311  Melica subulata John Rawlings 2005-5-15 1005 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Trail 2 from 100 to 250 yards west of the zoology cabin site 82 Comment
  JROH5315  Melica torreyana John H. Thomas 1975-5-26 17904 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH2179  Melilotus albus John H. Thomas 1976-10-16 18401 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH2190  Melilotus indicus John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2192  Melilotus indicus John Hunter Thomas 1982-5-18 20933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2197  Melilotus indicus John Hunter Thomas 1987-5-15 24283 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  POM284512  Melissa officinalis Lyman Benson 1937-7-15 8456 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 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
  JROH2829  Mentha X piperita Ruth Porter 1997-11-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing Comment
  JROH2812  Mentha pulegium John Hunter Thomas 1979-9-9 19725 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  RSA177005  Mentha pulegium John H. Thomas 1964-11-29 10533 San Mateo Jasper Ridge Biological Experimantal Area, about 5 miles SW of Palo Alto; W end of Searsville Dam Comment
  JROH2805  Mentha pulegium David D. Keck 1939-7-17 5012 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake 115 Comment
  JROH2806  Mentha pulegium John H. Thomas 1959-8-22 8079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2810  Mentha pulegium John H. Thomas 1976-10-16 18398 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Searsville Lake at the mouth of Corte de Madera Creek Comment
  RSA131298  Mentha pulegium Roxana S. Ferris 1920-9-3 2050 San Mateo 2nd Mud Lake; Coal Mine Ridge Comment
  JROH5838  Mentha suaveolens Ann Lambrecht 2007-8-15 30 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek Comment
  CDA4873  Mercurialis annua T. C. Fuller 1960-6-23 4542 San Mateo East fence line, Sanchez Adobe House, south side Linda Mar Boulevard, Pedro Valley. 0 Comment
  RSA135750  Mercurialis annua John H. Thomas 1955-11-9 5502 San Mateo Fallow Brussel Sprout field near Sanchez Adobe House, San Pedro Valley, about 8.5 miles south of San Francisco - San Mateo County line, and 0.9 mile inland from the ocean. Comment
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Aug 8 2010
  CDA31212  Mercurialis annua J. Eide 2010-2-19 PDR# 1527850 San Mateo East Palo Alto: in residential garden. 0 Comment
  CDA4872  Mercurialis annua T. C. Fuller 1958-10-16 1444 -58 San Mateo Just east of Sanchez Adobe House, south side of Linda Mar Boulevard, Pedro Valley. 0 Comment
  CDA4875  Mercurialis annua T. C. Fuller 1958-10-16 1444 -58 San Mateo Just east of Sanchez Adobe House, south side of Linda Mar Boulevard, Pedro Valley. 0 Comment
  CDA4876  Mercurialis annua G. D. Barbe 1974-6-4 1826 San Mateo Sanchez Adobe County Park and Museum, Mira Mar Boulevard, Linda Mar District. 0 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-BC428906  Micranthes californica Miss E. Cannon 1891-1-1 s.n. San Mateo South San Francisco, Hills. Comment
  CAS-BOT-BC348574  Micropus californicus var. californicus H. A. Dutton 1900-3-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH1119  Micropus californicus var. californicus John H. Thomas 1958-5-10 7152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1120  Micropus californicus var. californicus John H. Thomas 1961-4-29 9187 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1122  Micropus californicus var. californicus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1130  Micropus californicus var. californicus John Hunter Thomas 1986-5-6 24003 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1132  Micropus californicus var. californicus John Hunter Thomas 1988-4-28 24422 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348719  Microseris bigelovii Kenton L. Chambers 1956-6-20 1048 San Mateo Pebble Beach near Pescadero Point Comment
  SJSU15212  Microseris bigelovii Toni Corelli 2010-4-13 622 San Mateo Pigeon Point Light Station, north of light station, on edge of cliff west of Pigeon Point Road 6 Comment
  SJSU1071  Microseris douglasii C. W. Sharsmith 1951-4-6 5826 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  UCD69081  Microseris douglasii P. Rodriguez-Rojo 1997-5-31 San Mateo Edgewood County Park. Serpentine annual grasslands. UTM: 10EM6347 200 Comment
  JROH1143  Microseris douglasii subsp. douglasii John H. Thomas 1967-5-10 12853 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC349034  Microseris douglasii subsp. douglasii Lewis S. Rose 1956-5-28 56079 San Mateo Skyline Blvd w. of San Mateo 182 Comment
  CAS-BOT-BC349143  Microseris douglasii subsp. tenella Philip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Buckeye Canyon Comment
  CAS-BOT-BC349145  Microseris douglasii subsp. tenella Lewis S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  POM53382  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 756 San Mateo Woodside. Comment
  CAS-BOT-BC349189  Microseris elegans R. E. Frenkel 1964-5-22 504 San Mateo SFWD, 0.3 mile north of Sawyer Ridge Road, on Portola Ridge Road 268 Comment
  RSA0001425  Microseris leucocarpha C. F. Baker 1902-5-4 757 San Mateo Woodside. Comment
  UC2044060  Microseris paludosa Neal Kramer 2005-5-14 CR 440 San Mateo POST Cloverdale Ranch. North end of the Mesa approx. 0.4 mi east of Lake Lucerne. Comment
  JROH4068  Mimulus aurantiacus var. aurantiacus W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  UCD122291  Mimulus aurantiacus var. aurantiacus June McCaskill 1954-5-8 298 San Mateo Highway 5, ca. 2 miles northeast of junction with Halfmoon Bay Road. 883 Comment
  POM5176  Mimulus guttatus A. D. E. Elmer 1903-04 4857 San Mateo Crystal Springs Lake. Comment
  SEINET12269870  Mimulus guttatus var. grandis Unknown 1932-1 9123 San Mateo Half Moon Bay 0 Comment
  JROH1703  Minuartia douglasii John Hunter Thomas 1981-4-29 20512 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC388834  Minuartia douglasii George Oberlander 1950-4-22 750 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  RSA10142  Minuartia douglasii G. Oberlander 1950-4-22 750 San Mateo Sawyer Ridge, San Francisco Watershed Reserve. Comment
  SEINET11943608  Minuartia douglasii L. S. Rose 1937-1 37249 San Mateo Burlingame hills 91 Comment
  CAS-BOT-BC214069  Monardella villosa C. F. Baker 1903-6-30 3353 San Mateo Crystal Springs Comment
  CAS-BOT-BC214077  Monardella villosa Elizabeth McClintock; Carlyn Halde; Walter Knight; Irja Knight 1963-6-23 s.n. San Mateo Lower part of Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC214078  Monardella villosa Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Quarry 4, San Bruno Mountain 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
  SEINET10961432  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 184 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  JROH2839  Monardella villosa subsp. villosa John H. Thomas 1973-6-10 16822 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2845  Monardella villosa subsp. villosa John Hunter Thomas 1981-6-4 20671 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC24050  Monardella villosa subsp. villosa Mary Katherine Wicksten 1971-6-24 115 San Mateo Huddart Park, by park entrance Comment
  CAS-BOT-BC327789  Monolopia gracilens Otto Holm 1930-5-9 s.n. San Mateo Berenda Farm, near Redwood City Comment
  JROH1157  Monolopia gracilens Oz Garton 1968-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC349586  Monolopia major Le Roy Abrams 1898-5-1 s.n. San Mateo New Grade Road, Santa Cruz Mts. Comment
  CAS-BOT-BC444954  Montia fontana George Oberlander 1950-4-16 632 San Mateo San Francisco Watershed Reserve. Below San Andreas Dam Comment
  UC311167  Montia parvifolia A. D. E. Elmer May, 1903 4577 San Mateo Iverson's Place Comment
  UC1206482  Muilla maritima Le Roy Abrams 1902-4-13 2330 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC508584  Muilla maritima C. F. Baker 1902-3-30 423 San Mateo Crystal Springs Lake 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
  UCD119519  Myosotis latifolia Alison Blake 2003-4-14 1 San Mateo 10' East of SE Corner of Volunteer Parking Lot off of S.Dr on Filoli property, NW of Filoli S.Gate at Canada Rd. 518 Comment
  CAS-BOT-BC101776  Myrica californica Ira L. Wiggins 1929-5-10 3678 San Mateo Roadside between Pigeon Point and Pescadero Comment
  CAS-BOT-BC259766  Nassella cernua Walter & Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine Comment
  UCD87964  Nassella lepida R. Tofsrud 1949-6-1 s.n. San Mateo East side of Crystal Springs Lake. Comment
  UCD37962  Nassella pulchra Beecher Crampton 1962-6-11 6502 San Mateo San Mateo County, Sharp park suburb of pacifica, Moris' Point Road, west of State Highway 1. Comment
  UCD77883  Nasturtium officinale Robert E. Preston 2001-5-30 1535 San Mateo Ca. 9 mi nnw of Boulder Creek. 304 Comment
  LA206599  Navarretia heterodoxa Lewis S. Rose; 1941-6-12 41269 San Mateo W of Redwood City, Emerald Lake 120.0 Comment
  SD38213  Navarretia squarrosa Edith A. Purer 1933-7-27 5346 San Mateo Partially stabilized sand dunes near Pigeon Point Comment
  JROH2751  Nemophila John Hunter Thomas 1985-4-22 23548 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2755  Nemophila John Hunter Thomas 1992-4-7 25130 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Indian grinding rock. Comment
  JROH2736  Nemophila heterophylla John Hunter Thomas 1991-4-11 24978 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks Comment
  UC202791  Nemophila menziesii A. D. E. Elmer April, 1903 4737 San Mateo Cemeteries Comment
  JROH5550  Nemophila parviflora var. parviflora John Rawlings 2013-4-23 1141 San Mateo Jasper Ridge Biological Preserve, Stanford University; above creek upstream from bridge on Trail 11 139 Comment
  UCSC008907  Nemophila pedunculata Randall Morgan 2014-5-4 5599 San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC400066  Nuphar polysepala A. D. E. Elmer 1903-6-1 5077 San Mateo Pescadero Comment
  CAS-BOT-BC140429  Oemleria cerasiformis H. L. Mason 1921-7-14 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC140432  Oemleria cerasiformis Reed C. Rollins 1941-2-22 2938 San Mateo About 10 miles northwest of Palo Alto Comment
  CAS-BOT-BC140442  Oemleria cerasiformis John H. Thomas 1967-2-9 12400 San Mateo San Bruno, near intersection of Skyline Blvd. and Berkshire Dr. Comment
  CAS-BOT-BC140447  Oemleria cerasiformis Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo Comment
  CAS-BOT-BC140448  Oemleria cerasiformis Elizabeth McClintock 1967-4-16 s.n. San Mateo Buckeye Canyon Comment
  HSC66971  Oemleria cerasiformis Richard Spjut 1980-5-15 6195 San Mateo Palo Alto Foothill Park along Steep Hollow Trail, 1/4 mi. from jct. with Wildhorse Valley 229 Comment
  JEPS44826  Oemleria cerasiformis W. L. Jepson 1922-3-19 9542 San Mateo Lake San Andreas 182 Comment
  JROH3718  Oemleria cerasiformis John Hunter Thomas 1990-4-26 24811 San Mateo Jasper Ridge Biological Preserve, Stanford University. To the west of the dam Comment
  UCD127754  Oenanthe sarmentosa Collector unknown 1924-1 s.n. San Mateo La Honda. Comment
  UCD106882  Oenothera perennis T. C. Fuller 1970-5-12 19529 San Mateo Emily (Mrs. Hillary) Brown prop., 3045 Ralston Ave., Burlingame. Comment
  UC1197449  Orobanche californica subsp. californica Dr. L. M. Newlon 1919-9-7 68 San Mateo Pillar Point, northern end of Half Moon Bay. Comment
  SJSU15793  Orobanche fasciculata Toni Corelli 2010-7-8 642 San Mateo Bean Hollow State Beach along Arroyo de los Frijoles Trail 10 Comment
  JROH3088  Orobanche uniflora John H. Thomas 1968-5-3 14444 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12324060  Orthocarpus attenuatus E. McClintock, Knight, W.; Knight, I. 1982-1 4649 San Mateo San Bruno Mountain Comment
  SEINET3819130 Image available Orthocarpus densiflorus Lewis S. Rose 1932-4-10 32141 San Mateo Atherton. Comment
  POM15369  Orthocarpus floribundus C. F. Baker 1903-4-8 1926 San Mateo San Andreas Lake Comment
  POM49732  Orthocarpus floribundus L. R. Abrams 1902-4-13 2321 San Mateo San Andreas Lake. Comment
  POM15295  Orthocarpus lithospermoides Stewart H. Burnham 1890-5-11 s.n. San Mateo Near Searsville. Comment
  RSA402039A  Orthocarpus lithospermoides Francis W. Pennell, D. D. Keck 1940-5-15 25413 San Mateo Emerald Lake, above Redwood City. 46 Comment
  RSA184904  Orthocarpus pusillus L. S. Rose 1965-3-25 65011 San Mateo San Bruno Mountains, north end. 122 Comment
  POM226857  Orthocarpus pusillus L. R. Abrams 1935-4-2 5079 San Mateo Menlo Heights. Comment
  UCD110979  Oxalis oregana Janet Jacob 1951-4-1 60 San Mateo 7 miles east of Pescadero. Comment
  SEINET10870216  Oxalis oregana R. D. Sage 1992-1-6 Sage 13395 -2 San Mateo Collected along purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  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-BC413448  Parietaria judaica Elizabeth McClintock; Paul Reeberg 1989-5-2 s.n. San Mateo San Bruno Mountains. Along Harold Road 91 Comment
  CAS-BOT-BC265664  Paspalum distichum C. F. Baker 1902-10-20 1836 San Mateo Searsville Comment
  JROH5347  Paspalum distichum John Hunter Thomas 1979-9-9 19732 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of dam. Comment
  JROH4113  Pedicularis densiflora John H. Thomas 1974-4-13 17150 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD123330  Pedicularis densiflora Lewis S. Rose 1964-3-23 64013 San Mateo Emerald Lake, west of Redwood City. 121 Comment
  UCD39772  Pelargonium quercifolium Beecher Crampton 1977-2-19 s.n. San Mateo San Mateo County. Brisbane. A garden ornamental. Comment
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Apr 9 2009
  CAS-BOT-BC207024  Pelargonium vitifolium John Thomas Howell 1932-12-21 10864 San Mateo Along road just south of Pescadero. Comment
  CAS-BOT-BC207030  Pelargonium vitifolium J. H. Thomas 1959-8-16 8066 San Mateo About 2 miles north of Pigeon Point, along the coast 15 Comment
  CAS-BOT-BC69253  Pellaea andromedifolia George Oberlander 1949-5-24 s.n. San Mateo San Andreas Valley, San Francisco Watershed Reserve Comment
  JROH102  Pellaea andromedifolia John Hunter Thomas 1981-4-5 20268 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  JROH96  Pellaea andromedifolia John H. Thomas 1971-4-25 15784 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH103  Pellaea andromedifolia John Hunter Thomas 1982-11-8 21257 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Path below dam Comment
  SEINET4555767 Image available Pellaea andromedifolia John P. Young 1925-1-9 San Mateo Burlingame Comment
  JROH105  Pellaea mucronata var. mucronata L. R. Abrams 1916-3-27 5588 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Ridge Comment
  UCD134867  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  SJSU14193  Pentachaeta bellidiflora Toni Corelli 1989-4-2 201 San Mateo watershed triangle between Edgewood & Canada Rds 170 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
  POM88667  Pentachaeta exilis L. R. Abrams 1901-4-20 1533 San Mateo Mint [difficult to read] Bells Road. Comment
  CAS-BOT-BC77006  Pentagramma triangularis subsp. triangularis Fred Hemphill 1973-4-22 788 San Mateo San Carlos - area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH106  Pentagramma triangularis subsp. triangularis John H. Thomas 1955-5-6 4983 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
  RSA430457  Perideridia kelloggii Lyman Benson 1974-02 8485 San Mateo La Honda Road 244 Comment
  JROH3243  Persicaria amphibia W. R. Dudley 1909-10-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lake. Comment
  JROH3257  Persicaria amphibia John Hunter Thomas 1992-7-24 25386 San Mateo Jasper Ridge Biological Preserve, Stanford University. Boat ramp. Comment
  CAS-BOT-BC419390  Persicaria punctata Ira L. Wiggins 1974-10-27 22132 San Mateo Bed of San Francisquito Creek, along line between Palo Alto and Mrnlo [Menlo] Park and between San Mateo and Santa Clara Counties, near Pope Street bridge Comment
  CAS-BOT-BC330312  Petasites frigidus var. palmatus W. R. Dudley 1894-3-23 s.n. San Mateo Santa Cruz Mountain Peninsula. By La Honda Creek, Redwoods above hotel Comment
  RSA26764  Petasites palmatus Albert W. C. T. Herre, I. L. Wiggins 1939-3-25 19 A San Mateo Headwaters of Pescadero Creek, about 8 miles north of Big Basin Redwood Park. Comment
  SEINET12280043  Phacelia californica Unknown 1932-1 8996 San Mateo Between Sky Line Drive and Half Moon Bay Comment
  SJSU7544  Phacelia distans L. S. Rose 1963-5-23 63060 San Mateo Thornton Beach Park 30 Comment
  UC881086  Phacelia divaricata Lewis S. Rose 1937-4-24 37231 San Mateo w Redwood City; Emerald Lake 106 Comment
  RSA0106646  Phacelia divaricata Lyman Benson 1931-3-15 2639 San Mateo Emerald Lake, Redwood City, Santa Cruz Mtns, San Francisco Bay watershed. 152 Comment
  SEINET3840788  Phacelia malvifolia Unknown 2005-6-21 5 .367 San Mateo Northeast corner of Pilarcitos Lake, SF Water District land 250 Comment
  JROH2761  Phacelia nemoralis var. nemoralis John H. Thomas 1973-6-15 16848 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2765  Phacelia rattanii D. E. Breedlove 1971-5-11 19332 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  CAS-BOT-BC258930  Phalaris aquatica Elizabeth McClintock; Paul Reeberg 1988-5-23 s.n. San Mateo San Bruno Mountains. Along Harold Avenue, Brisbane 53 Comment
  JROH5353  Phalaris aquatica John H. Thomas 1973-6-15 16839 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5363  Phalaris aquatica John Hunter Thomas 1982-7-2 21058 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  SJSU15792  Phalaris californica Toni Corelli 2010-6-1 641 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 23 Comment
  UCD88557  Phalaris californica Beecher Crampton 1962-6-11 6487 San Mateo 5 miles W of Belmont, at junction of Ralston Avenue and Skyline Boulevard. At foot of western slope of Pulgas Ridge. Comment
  UCD88567  Phalaris californica P. B. Kennedy 1916-5-1 s.n. San Mateo Crocker Estate, Burlingame. Comment
  SEINET10887598  Phalaris californica Adolph D. E. Elmer Elmer 4699 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC250640  Phalaris minor J. H. Thomas 1962-5-12 9861 San Mateo Franklin Point Comment
  UC820505  Phalaris minor John Thomas Howell 1937-7-5 13099 San Mateo along Bayshore Highway Redwood City Comment
  CAS-BOT-BC250697  Phalaris paradoxa L. R. Abrams 1927-6-4 s.n. San Mateo San Gregorio Comment
  CDA2317  Phalaris paradoxa T. C. Fuller 1967-6-13 15948 San Mateo Road to San Mateo, 0.7 mile east of Skyline Blvd., east above Crystal Springs Lake. 0 Comment
  UC52847  Phlox gracilis J. Burtt Davy Jun 21 1893-Jun 23 1893 1044 San Mateo Pilarcitos Lake and Canyon Comment
  JROH5552  Pholistoma auritum var. auritum John Rawlings, Toni Corelli 2013-4-16 1133 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension northwest of the cistern 102 Comment
  CAS-BOT-BC222502  Pholistoma auritum var. auritum Miss E. Cannon No date on label s.n. San Mateo South San Francisco Comment
  JROH4294  Phoradendron leucarpum subsp. tomentosum John Hunter Thomas 1979-1-31 19348 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH4287  Phoradendron serotinum subsp. tomentosum John H. Thomas 1959-8-22 8080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC2056116  Phyllospadix torreyi 2015-6-18 San Mateo Pescadero. beds south of promontory Comment
  CAS-BOT-BC142180  Physocarpus capitatus Margaret A. Barry 1937-5-15 112 San Mateo Woods on Coal Mine Ridge Comment
  UC69382  Physocarpus capitatus J. Burtt Davy 1893-6-17 799 San Mateo Belmont Comment
  HSC23884  Pickeringia montana Mary Katherine Wicksten 1971-6-15 18 San Mateo Huddart Park near horse ring Comment
  SEINET6175930 Image available Pinus coulteri Ralph R. Wilson 1939-7-25 435 San Mateo Campus of Leland Stanford.; 0 Comment
  JEPS121041  Pinus radiata Adam C. Schneider with C. Matt Guilliams 2013-3-8 40 San Mateo Crystal Springs Reservoir, Northern part of western margin of San Francisco Public Utilities Commission land. Comment
  CAS-BOT-BC136529  Piperia candida John H. Thomas 1961-6-20 9551 San Mateo Field redacted by CAS, contact the data manager for more information 152 Comment
  CAS-BOT-BC137294  Piperia elegans Margaret A. Barry 1937-9-24 220 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137312  Piperia elegans Robert Cox, Jr. 1946-8-17 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137317  Piperia elegans E. McClintock; W. Knight; I. Knight 1963-9-2 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137318  Piperia elegans Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC228130  Plagiobothrys chorisianus Walter & Irja Knight 1965-3-21 946 San Mateo San Bruno Mountains. North Power Line Ridge Comment
  CAS-BOT-BC228151  Plagiobothrys chorisianus var. chorisianus V. F. Hesse 1959-4-16 2588 San Mateo Pigeon Point 7 Comment
  JEPS85242  Plagiobothrys chorisianus var. chorisianus Roy E. Buck and James A. West 1985-6-3 535 San Mateo just s unnamed sw-draining creek N of Cascade Creek (ca 2.2 air km e of Whitehouse Canyon Rd-CA Hwy 1 jct, 3.8 air km e of Franklin Point); Cascade Ranch 67 Comment
  RSA128818  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Lake Comment
  SD39907  Plagiobothrys chorisianus var. chorisianus Edith A. Purer 1933-7-27 5392 San Mateo Two miles south of Pigeon Point. Comment
  CAS-BOT-BC228161  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1908-6-19 s.n. San Mateo The Santa Cruz Mountain Peninsula. W of Jersey Farm Dairy Comment
  CAS-BOT-BC228172  Plagiobothrys chorisianus var. hickmanii Anne Constant 1955-5-28 192 San Mateo At Pescadero Beach 7 Comment
  JROH1418  Plagiobothrys chorisianus var. hickmanii John Hunter Thomas 1982-5-18 20940 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  JROH1424  Plagiobothrys nothofulvus John H. Thomas 1969-4-12 14879 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC1084415  Plagiobothrys nothofulvus G. Thomas Robbins 1937-4-11 102 San Mateo near Spring Valley Lakes (along road to Woodside) Comment
  SD39265  Plagiobothrys nothofulvus Edith A. Purer 1933-5-16 3648 San Mateo Alpine Road Comment
  JROH1434  Plagiobothrys tenellus Le Roy Abrams 1904-5-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC39820  Plantago Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  SJSU15215  Plantago elongata Toni Corelli 2010-5-4 623 San Mateo Ano Nuevo, Cascade Field, west of Atkinson Bluff Trail, edge of coastal bluff 10 Comment
  JROH3118  Plantago erecta John Hunter Thomas 1981-4-27 20508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7097924  Plantago erecta 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
  JROH3134  Plantago major John Hunter Thomas 1977-6-16 18788 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC92013  Platystemon californicus A. D. E. Elmer 1903-6-1 4853 San Mateo Crystal Springs Lake. Comment
  UC118524  Platystemon californicus C. F. Baker 1902-3-30 433 San Mateo Crystal Springs Lake Comment
  SD1839  Platystemon californicus U. S. Grant 1925-6-5 San Mateo Burlingame Comment
  POM149360  Platystemon californicus var. californicus A. D. E. Elmer 1903-06 4853 San Mateo Crystal Springs Lake. Comment
  UC131908  Plectritis brachystemon Alice Eastwood 1901-5-19 San Mateo Blenheim Comment
  JROH4248  Plectritis ciliosa Carol Zabel 2006-4-24 58 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dirt trail up slope towards global change area, across from big parking area. Comment
  RSA128836  Plectritis macrocera L. R. Abrams 1904-4-10 s.n. San Mateo On road from Woodside to Crystal Springs. The Santa Cruz Mtn Peninsula. Comment
  POM284728  Plectritis macrocera subsp. macrocera Arthur L. Cohen 1935-4-21 635 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  UCD92188  Poa August L. Hormay 1932-5-29 s.n. San Mateo Bay shore, San Bruno. Comment
  JROH5399  Poa annua John H. Thomas 1975-4-3 17702 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA181329  Poa douglasii John H. Thomas 1965-5-1 10637 San Mateo at Pescadera Beach Comment
  JROH5409  Poa howellii John H. Thomas 1964-4-19 10329 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam in among redwoods near creek. Comment
  JROH5413  Poa howellii John Rawlings 2013-4-16 1137 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension south of the Dengler Transect after a short uphill section where the trail passes below a boulder. 84 Comment
  CAS-BOT-BC255785  Poa infirma John H. Thomas 1965-4-29 10628 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC247423  Poa pratensis George Oberlander 1950-5-6 880 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  CAS-BOT-BC243112  Poa secunda subsp. secunda Ned Cahill 1974-4-29 179 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  JROH5425  Poa secunda subsp. secunda John Hunter Thomas 1967-6-1 12958 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky north slope, Searsville Ridge Comment
  JROH5426  Poa secunda subsp. secunda W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across Lake from lab. Comment
  CAS-BOT-BC243117  Poa secunda subsp. secunda W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Mountain Peninsula. By Redwood stage road, [vicinity of Redwood City?] Comment
  SJSU15794  Poa unilateralis subsp. unilateralis Toni Corelli 2010-7-8 643 San Mateo Bean Hollow State Beach along Arroyo de los Frijoles Trail 10 Comment
  JROH2859  Pogogyne serpylloides John H. Thomas 1976-4-30 18104 A San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH5623  Pogogyne serpylloides John Rawlings 2014-5-9 1236 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 extension about 115 meters from its Escobar terminus at the wooden trail marker near the boundary fence east of Escobar Gate 146 Comment
  CAS-BOT-BC232896  Polemonium carneum A. D. E. Elmer 1903-7-1 4771 San Mateo Pilarcitos Stone Dam Comment
  UCSC007771  Polycarpon tetraphyllum var. tetraphyllum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park 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
  CAS-BOT-BC173595  Polygonum arenastrum Peter Rubtzoff 1975-10-11 8421 A San Mateo Pond northwest of and across Old Guadalupe Road from Saddle area (which is located on north side of Guadalupe Canyon Parkway west of Radio Road junction). Comment
  JEPS81638  Polygonum aviculare subsp. aviculare J. C. Hickman 1981-7-21 1004 San Mateo Ano Nuevo Reserve; near center Comment
  CAS-BOT-BC414236  Polygonum aviculare subsp. depressum Ira L. Wiggins 1980-8-29 22251 San Mateo Sandy bed of San Francisquito Creek, 100--200 m upstream from Pope Street Bridge, Menlo Park Comment
  JROH3262  Polygonum aviculare subsp. depressum John Hunter Thomas 1980-11-27 20187 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta. 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
  RSA10274  Polygonum paronychia H. A. Barker 1927-5-14 669 San Mateo North of Half Moon Bay. Comment
  UC483492  Polygonum paronychia Ira L. Wiggins 1929-7-4 3795 San Mateo Pescadero Beach; sea bluffs Comment
  SBBG32442  Polypodium californicum L. S. Rose 1964-2-6 64001 San Mateo King's Mtn 609 Comment
  CAS-BOT-BC76902  Polypodium californicum George Oberlander 1951-3-11 1157 San Mateo San Francisco Watershed Reserve - Pilarcitos Canyon Comment
  UC474210  Polypodium californicum H. F. Copeland 1928-2-26 985 San Mateo on cliffs above ocean Montara Comment
  UC766795  Polypodium calirhiza R. F. Hoover 1941-2-12 4759 San Mateo La Honda Creek above La Honda Comment
  CAS-BOT-BC76856  Polypodium calirhiza Peter H. Raven 1951-2-18 2730 San Mateo San Bruno Mts. near Brisbane. Comment
  JEPS48462  Polypogon australis James G. Daly 1934-1 444 San Mateo sw La Honda (n-facing slopes in lower San Gregorio Canyon); lower San Gregorio Canyon Comment
  CAS-BOT-BC233153  Polypogon interruptus H. A. Borthwick 1920-6-1 203 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  CAS-BOT-BC233155  Polypogon interruptus C. F. Leitholt 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devil's [Canon] Canyon Comment
  JROH5435  Polypogon interruptus John Hunter Thomas 1983-5-23 22247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Roadside drainage near shack side & low-flow crossing. Comment
  JROH5436  Polypogon interruptus W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito creek -- above low-flow causeway on left, under trees in rocks. 81 Comment
  JROH5677  Polypogon interruptus John Rawlings 2014-5-28 1249 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Up-stream edge of low flow crossing of San Francisquito Creek. 81 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
  JROH5451  Polypogon monspeliensis John Hunter Thomas 1981-7-12 20685 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat dock. Comment
  UC1100376  Polypogon monspeliensis Malcolm A. Nobs and S. Galen Smith 1949-8-26 1592 San Mateo marshes mouth of Pescadero Creek Comment
  CAS-BOT-BC237358  Polypogon monspeliensis V. F. Hesse No date on label 3203 San Mateo Whitehouse Creek road, near coast 30 Comment
  CAS-BOT-BC6608  Polystichum dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Near bridge, Peter's Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC72223  Polystichum dudleyi Thomas H. Lindenmeyer 1981-4-15 s.n. San Mateo Woodside, between Bear Gulch and Appletree Gulch Comment
  JROH51  Polystichum dudleyi Ann Lambrecht 2005-10-26 22 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 2 on creek bank 60 m beyond first drainage past intersection of Trails 1 & 5. Comment
  CAS-BOT-BC76646  Polystichum munitum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain - North Power Line Ridge area. Comment
  RSA11001  Polystichum munitum C. B. Wolf 1928-3-14 1538 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  RSA189827  Polystichum munitum Delzie Demaree 1932-2-14 8922 San Mateo Kings Mountain. P.O. San Carlos. Comment
  CAS-BOT-BC410033  Populus X parryi W. R. Dudley 1895-3-11 s.n. San Mateo San Fransicquito Creek, S of Railroad bridge Comment
  CAS-BOT-BC445246  Portulaca oleracea Fay Gilbert 1920-6-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Redwood City Comment
  CAS-BOT-BC453678  Potamogeton gramineus W. R. Dudley 1910-5-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Ridge near Black Mountain Comment
  CAS-BOT-BC453832  Potamogeton nodosus V. F. Hesse 1961-8-24 3020 San Mateo About 4 miles south of Pescadero 60 Comment
  UC279592  Potamogeton nodosus W. A. Setchell, C. B. Setchell, H. E. Parks 1925-8-29 San Mateo Comment
  CAS-BOT-BC454009  Potamogeton pectinatus Ira L. Wiggins; Roxana S. Ferris 1939-8-2 9293 San Mateo Ano [Ano] Nuevo Point Comment
  CAS-BOT-BC401044  Potentilla L. Sigal 1970-5-1 s.n. San Mateo Pescadero Marsh Comment
  CAS-BOT-BC141936  Potentilla anserina subsp. pacifica J. H. Thomas 1949-6-4 590 San Mateo Along coast, 1.4 miles S. of road to Pescadero Comment
  UC1543108  Potentilla anserina subsp. pacifica Donald G. Nelson 1939-6-14 617 San Mateo e side Skyline Blvd (a few mi s of Daly City); s of Daly Cith Comment
  JEPS121447  Primula clevelandii var. patula Adam C. Schneider with C. Matt Guilliams 2013-3-9 22 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC516358  Prosartes hookeri John H. Thomas 1961-5-7 9285 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH4674  Prosartes hookeri John H. Thomas 1979-4-10 19448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC516357  Prosartes hookeri Ira L. Wiggins 1928-4-14 2912 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC517397  Prosartes smithii H. L. Mason 1917-4-1 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC517398  Prosartes smithii W. R. Dudley 1895-4-14 s.n. San Mateo Santa Cruz Peninsula, beyond summit on Woodside Road Comment
  SJSU9997  Prosartes smithii R. L. Roney 1974-4-27 San Mateo N side of La Honda Creek 457 Comment
  UC449935  Prunella vulgaris var. lanceolata Franklin P. Nutting 1893-7-15 San Mateo near Lake San Andreas; near Lake San Andreas Comment
  RSA18295  Prunella vulgaris var. lanceolata Carl B. Wolf 1927-6-21 422 San Mateo East slope of Kings Mt. Comment
  POM139632  Prunus A. D. E. Elmer 1903-07 4773 San Mateo Pilarcitos Stone Dam. Comment
  CAS-BOT-BC158171  Prunus emarginata Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Bitter-cherry [Bitter Cherry] Ridge Comment
  POM139640  Prunus emarginata A. D. E. Elmer 1903-05 4523 San Mateo Searsville Lake Comment
  UC12742  Prunus emarginata J. Burtt Davy 1895-4-20 1032 San Mateo Lake San Andreas Comment
  UC1128403  Prunus ilicifolia G. E. Sindel 1935-8-27 339 San Mateo 1 mi w Crystal Spring Lake 121 Comment
  UC1128422  Prunus ilicifolia A. Wright 1928-9-16 San Mateo San Andreas Lake 152 Comment
  SEINET11917324  Prunus ilicifolia McMurphy 1906-5-7 14 San Mateo Stanford University Comment
  CAS-BOT-BC156354  Prunus virginiana var. demissa Phillip C. Wheeler 1965-5-12 s.n. San Mateo Sierra Point - near canyon Comment
  JROH772  Pseudognaphalium beneolens John H. Thomas 1964-11-29 10537 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville dam Comment
  CAS-BOT-BC356853  Pseudognaphalium californicum Walter Knight 1963-10-7 324 San Mateo San Bruno Mountain. Cow Trough Ravine Comment
  CAS-BOT-BC356855  Pseudognaphalium californicum George Oberlander 1949-8-20 361 San Mateo San Francisco Watershed Reserve. Sweeney 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-BC356865  Pseudognaphalium californicum Javier Penalosa 1963-3-9 2671 San Mateo San Bruno Mountain. Slopes southeast of 1314ft. summit 381 Comment
  CAS-BOT-BC357122  Pseudognaphalium luteoalbum Fred Hemphill 1973-3-1 622 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH775  Pseudognaphalium luteoalbum John H. Thomas 1970-7-5 15657 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH780  Pseudognaphalium luteoalbum John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC357127  Pseudognaphalium luteoalbum Philip Wheeler 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC357131  Pseudognaphalium luteoalbum Lewis S. Rose 1936-2-12 36005 San Mateo Burlingame 91 Comment
  JROH773  Pseudognaphalium luteoalbum J. H. Thomas 1958-12-21 7510 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake 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
  JROH784  Pseudognaphalium luteoalbum John Hunter Thomas 1986-5-6 24001 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bath house Comment
  SBBG45073  Pseudognaphalium luteoalbum L. S. Rose 1936-2-12 San Mateo Burlingame 91 Comment
  SDSU3737  Pseudognaphalium microcephalum D. F. Howe 1964-8-13 3958 San Mateo Near ocean on #1; near San Francisco Co. line. Comment
  CAS-BOT-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
  SBBG45075  Pseudognaphalium ramosissimum L. S. Rose 1935-8-13 35568 San Mateo Salada 30 Comment
  CAS-BOT-BC357575  Pseudognaphalium stramineum E. M. Zeile 1921-7-30 s.n. San Mateo Salada Comment
  JEPS34068  Pseudognaphalium stramineum L. M. Newlon 1921-7-30 248 San Mateo sea shore from Salada to Mussel Comment
  JROH5642  Pseudognaphalium stramineum John Rawlings 2014-6-7 1251 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few meters east of the Caretaker's Residence 106 Comment
  CAS-BOT-BC361566  Pseudognaphalium stramineum Phillip Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. Cow Palace area Comment
  CAS-BOT-BC85915  Pseudotsuga menziesii Miss O. Boring 1897-8-31 s.n. San Mateo Santa Cruz Peninsula, King's Mt. Comment
  CAS-BOT-BC85916  Pseudotsuga menziesii A. D. E. Elmer 1903-4-1 4562 San Mateo King's Mt. Comment
  HSC1587  Pseudotsuga menziesii P. A. Murphy 1965-4-16 11 San Mateo 4 mi from Half Moon Bay on Higgins Canyon Rd. Comment
  JROH127  Pseudotsuga menziesii var. menziesii John Hunter Thomas 1981-2-14 20222 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5334815  Pseudotsuga menziesii var. menziesii R. L. Oliver 1976-4-18 s.n. San Mateo La Honda, San Mateo Memorial Park. Comment
  JEPS27364  Psilocarphus tenellus Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7624 San Mateo just e KRON television tower and station (below and se of end of paved ridge-top road on Guadalupe Valley side of summit San Bruno Mountain); on Guadalupe Valley side of summit of San Bruno Mountain 304 Comment
  JROH1196  Psilocarphus tenellus John Hunter Thomas 1992-4-23 25146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC517982  Psilocarphus tenellus Lewis S. Rose 1933-5-3 33140 San Mateo Montara Comment
  CAS-BOT-BC362016  Psilocarphus tenellus W. R. Dudley 1899-4-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Field near San Francisquito Creek, Stanford University Comment
  CAS-BOT-BC362020  Psilocarphus tenellus Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  CAS-BOT-BC72657  Pteridium aquilinum Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mt., Cable Ravine Comment
  CAS-BOT-BC72659  Pteridium aquilinum George Oberlander 1950-7-15 1120 San Mateo Pilarcitos Canyon Comment
  JROH15  Pteridium aquilinum var. pubescens John H. Thomas 1970-5-16 15633 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC421315  Pterostegia drymarioides John H. Thomas 1961-5-13 9333 San Mateo At Franklin Point. Comment
  CAS-BOT-BC421313  Pterostegia drymarioides Elizabeth McClintock; Paul Reeberg 1988-3-29 s.n. San Mateo San Bruno Mountains. Colma Canyon. 121 Comment
  UCD92954  Puccinellia maritima A. A. Beetle 1946-6-4 4278 San Mateo San Mateo City limits on San Mateo Bridge approach. On San Francisco Bay margin. Comment
  JROH3754  Pyracantha fortuneana J. H. Thomas 1960-6-8 8773 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near entrance to Searsville Lake Comment
  JEPS21656  Pyrrocoma racemosa var. racemosa S. D. Halsey 1908-9-15 San Mateo Slough near Cooleys Landing, near Palo Alto. Comment
  JROH2534  Quercus X morehus W. K. Fisher 1898-3-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
Read comments
Oct 31 2016
  CAS-BOT-BC61707  Quercus agrifolia Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Buckeye Canyon, near ridge, San Bruno Mountain Comment
  CAS-BOT-BC61709  Quercus agrifolia Lewis S. Rose 1964-3-23 64012 San Mateo Emerald Lake, w of Redwood City hills 121 Comment
  CAS-BOT-BC61711  Quercus agrifolia George Oberlander 1949-10-8 397 San Mateo Sawyer Ridge Comment
  UCD45039  Quercus agrifolia R. E. Dengler 1960-4-10 10 San Mateo Tree ca. 7 meters tall; 15 degrees west-facing slope near bottom of gully, 10 meters away from permanent spring below, elevation 525 feet; Jasper Ridge, Standford Biological Reserve, San Mateo County, California. 160 Comment
  CAS-BOT-BC62307  Quercus chrysolepis Stkinson 1902-11-30 s.n. San Mateo Santa Cruz Mountain Peninsula, King's Mt. Comment
  CAS-BOT-BC62309  Quercus chrysolepis William R. Dudley 1893-11-1 s.n. San Mateo Santa Cruz Mts., Bear Gulch road Comment
  CAS-BOT-BC94275  Quercus durata Lewis S. Rose 1964-9-5 64068 San Mateo Emerald Lake, W of Redwood City 243 Comment
  CAS-BOT-BC94276  Quercus durata John H. Thomas 1969-10-19 15486 San Mateo near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  UCD46005  Quercus durata Herb Dengler 1992-3-5 s.n. San Mateo Jasper Ridge Biological Preserve (of Stanford University) in southeast part of preserve, San Meteo County, California. Comment
  JROH2480  Quercus durata var. durata John H. Thomas 1963-5-12 10077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2482  Quercus durata var. durata John H. Thomas 1968-5-22 14458 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD45969  Quercus durata var. durata Lewis S. Rose 1964-9-5 64068 San Mateo Emerald Lake, W. of Redwood City. Alt. ca. 800 ft. 243 Comment
  CAS-BOT-BC105403  Quercus kelloggii J. H. Thomas 1955-3-21 4694 San Mateo New La Honda Road above Searsville and Skyline Blvd. 1.8 miles from Searsville. E slope of the Santa Cruz Mountains 274 Comment
  LA205320  Quercus kelloggii David D. Keck; 1932-3-6 1395 San Mateo Santa Cruz Mountains, La Honda road above Searsville Lake Comment
  JROH2518  Quercus lobata John H. Thomas 1968-4-19 14299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2524  Quercus lobata John Hunter Thomas 1979-9-9 19733 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12034640  Quercus lobata Unknown 1929-1 7290 San Mateo Kings Mtn Comment
  UCD47215  Quercus parvula Roman Gankin 1992-1-23 s.n. San Mateo (Q. parvula E. Greene var. shrevei (C.H. Muller) Nixon). Rapley Rd. ca. 1 m. W of Skyline Blvd. at base of Langley Hill Quarry. Comment
  NY201784  Quercus wislizeni J. B. Walker 1994-8-15 909 San Mateo Skyline Rd, mile marker 13.84, N of Sky Londa 100 Comment
  CAS-BOT-BC134782  Quercus wislizeni W. R. Dudley 1903-5-1 s.n. San Mateo Santa Cruz Peninsula. Alpine Road N of Myer's Place Comment
  JROH5828  Quercus wislizeni var. frutescens John Rawlings 2016-12-29 1954 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 120 yards north of Road F opposite its intersection with Trail 17 to Goya Gate 178 Comment
  CAS-BOT-BC362544  Rafinesquia californica Fred Hemphill 1973-5-14 803 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC362552  Rafinesquia californica Theo. C. Zschokke 1903-7-10 s.n. San Mateo Santa Cruz Mountain Peninsula. New Grade Road, Black Mt. Comment
  CAS-BOT-BC379083  Ranunculus aquatilis var. diffusus George Oberlander 1950-7-15 1115 San Mateo Marsh, San Andreas Lake Comment
  POM268415  Ranunculus californicus Lyman Benson 1935-3-10 6250 San Mateo Menlo Park. San Franciso Bay. 30 Comment
  RSA15338  Ranunculus californicus Carl B. Wolf 1927-2-5 149 San Mateo Pilarcitos Lake Comment
  RSA399414  Ranunculus californicus L. S. Rose 1935-4-16 35097 San Mateo Emerald Lake, W of Redwood City Comment
  SJSU2273  Ranunculus californicus C. W. Sharsmith 1947-4-13 6754 San Mateo Pescadero Beach near Pwscadero Point 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
  JROH3473  Ranunculus californicus John H. Thomas 1977-4-3 18508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA399413  Ranunculus californicus Paul C. Silva 1948-1-31 2627 San Mateo Old La Honda Grade, 1 mi. S of Skyline Blvd. 457 Comment
  SEINET5718555 Image available Ranunculus californicus Leslie Fenster 1964-1 10 San Mateo Ca. 2.5 miles up Polhemus Road. Comment
  JEPS127797  Ranunculus californicus var. californicus Adam C. Schneider with C. Matt Guilliams 2013-4-7 68 San Mateo Along dirt road running parallel to overhead power transmission lines. Comment
  CAS-BOT-BC378534  Ranunculus californicus var. californicus J. H. Thomas 1949-3-29 s.n. San Mateo Kings Mountain Comment
  HSC18142  Ranunculus californicus var. californicus P. A. Murphy 1965-4-16 26 San Mateo 5 mi. from Half Moon Bay in Hatch's woods along rd. Comment
  UC481014  Ranunculus hebecarpus Franklin P. Nutting April, 1895 San Mateo Comment
  POM269868  Ranunculus lobbii W. R. Dudley 1904-4-22 s.n. San Mateo Corte Madera Creek along New Grade Road Comment
  CAS-BOT-BC83427  Ranunculus lobbii W. R. Dudley 1964-4-22 s.n. San Mateo Santa Cruz Mountain Peninsula. Corte Madera Creek. Along New Grade Road. Comment
  UC162558  Ranunculus muricatus Harley P. Chandler 1901-3-15 798 San Mateo marshes w Colma; Region of San Francisco Bay Comment
  JROH3496  Ranunculus muricatus John Hunter Thomas 1983-4-5 21327 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing Comment
  UCD97311  Ranunculus trilobus Phil Greer 2002-4-17 s.n. San Mateo Hwy 101, in Half Moon Bay. Comment
  CAS-BOT-BC74341  Raphanus sativus Javier Penalosa 1963-2-23 2663 San Mateo San Bruno Mountain. Ravine south of Crocker Avenue. 213 Comment
  RSA222805  Rhamnus californica S. S. Berry 1909-4-3 s.n. San Mateo Bear Creek Canyon Grade 259 Comment
  CAS-BOT-BC55890  Rhamnus crocea H. A. Dutton 1900-2-1 s.n. San Mateo unspecified Comment
  JROH3556  Rhamnus crocea H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3566  Rhamnus crocea John Hunter Thomas 1981-4-27 20503 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA20326  Rhamnus crocea Carl B. Wolf 1929-5-17 3717 San Mateo 1 mile W of Skyline Drive on Alpine Road. 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
  UC592785  Rhamnus crocea unknown 1928-3-16 1540 San Mateo near Searsville Lake; Jasper Ridge Comment
  POM243723  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1927-12-31 1472 San Mateo 1/2 way up Kings Mt. Comment
  CAS-BOT-BC56665  Rhododendron occidentale William R. Dudley 1895-6-6 s.n. San Mateo Pescadero Cr. (near Iverson's) Comment
  CAS-BOT-BC56666  Rhododendron occidentale W. S. Atkinson 1901-7-6 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC92488  Ribes aureum var. gracillimum James McMurphy 1906-4-4 s.n. San Mateo Creek above Judge Allen's, Santa Cruz Mountains. Comment
  CAS-BOT-BC92491  Ribes aureum var. gracillimum A. D. E. Elmer 1903-5-1 4514 San Mateo Portola. Comment
  UCR2941  Ribes aureum var. gracillimum Wm. Horn Jr. 1963-4-9 620409- 02 San Mateo San Francisco Bay region, Hillsborough, 2240 Redington Rd. 30 Comment
  RSA476444  Ribes californicum L. H. Jones 1909-3-5 s.n. San Mateo 600 feet on the west side of Jasper Ridge, Stanford University. Comment
Read comments
Sep 19 2011
  UC518033  Ribes californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont Comment
  SEINET6205023  Ribes divaricatum L. S. Rose 1965-1 65008 San Mateo Searsville Lake. Comment
  CAS-BOT-BC173084  Ribes divaricatum var. pubiflorum F. J. Jack 1894-3-24 s.n. San Mateo La Honda Road Comment
  CAS-BOT-BC173473  Ribes malvaceum A. D. E. Elmer 1903-3-1 4535 San Mateo Portola Comment
  CAS-BOT-BC173475  Ribes malvaceum W. R. Dudley 1893-1-1 s.n. San Mateo Near Belmont Comment
  POM141973  Ribes malvaceum A. D. E. Elmer 1903-03 4750 San Mateo Portola Comment
  RSA0021676  Ribes malvaceum Lyman Benson 1931-1-25 2576 San Mateo Continuation of Page Mill Road toward La Honda. Stanford University, Santa Cruz Mountain Range. 244 Comment
  CAS-BOT-BC212829  Ribes menziesii F. V. Coville 1952-4-6 223 San Mateo North-facing slope of Tunitas Creek, on the bend west of the highway bridge Comment
  CAS-BOT-BC212837  Ribes menziesii R. Bacigalupi 1922-3-1 s.n. San Mateo Along Pescadero Creek Comment
  CAS-BOT-BC212838  Ribes menziesii W. R. Dudley 1893-4-1 s.n. San Mateo Near San Francisquito Creek above Searsville Resevoir Comment
  CAS-BOT-BC212842  Ribes menziesii J. H. Thomas 1949-3-31 205 San Mateo King's Mountain Comment
  UC11716  Ribes menziesii J. Burtt Davy Jun 21 1893-Jun 23 1893 1148 San Mateo Pilarcitos Lake and Canyon Comment
  UC202760  Ribes menziesii A. D. E. Elmer June, 1903 4787 San Mateo Lake San Andreas Comment
  CAS-BOT-BC144632  Ribes sanguineum var. glutinosum Alice Eastwood 1922-5-27 11326 San Mateo La Honda Comment
  CAS-BOT-BC144642  Ribes sanguineum var. glutinosum John Thomas Howell 1924-2-23 268 San Mateo King Mountain Comment
  CAS-BOT-BC144647  Ribes sanguineum var. glutinosum A. D. E. Elmer 1903-3-1 4470 San Mateo Portola Comment
  CAS-BOT-BC144648  Ribes sanguineum var. glutinosum Reed C. Rollins 1941-2-22 2936 San Mateo wooded slope, Coast Range, about 10 miles northwest of Palo Alto 152 Comment
  JROH2674  Ribes sanguineum var. glutinosum John H. Thomas 1968-3-17 14174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2689  Ribes sanguineum var. glutinosum John Hunter Thomas 1992-4-7 25131 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  UC921843  Ribes sanguineum var. glutinosum Lillian Lockwood 1908-3-9 San Mateo Coal Mine Ridge Comment
  RSA0019093  Ribes sanguineum var. glutinosum S. S. Berry 1909-3-13 s.n. San Mateo King s Mountain. 640 Comment
  UC980030  Rigiopappus leptocladus Ira L. Wiggins 1949-4-23 12050 San Mateo hillsides above Emerald Lake (back of Redwood City) 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
  CAS-BOT-BC341023  Robinia pseudoacacia L. R. Abrams 1922-5-3 s.n. San Mateo Sutliff Garden, Stanford University Comment
  CAS-BOT-BC341025  Robinia pseudoacacia L. R. Abrams 1921-5-3 s.n. San Mateo Prop. Tallocks garden, Stanford University Comment
  UC107586  Romanzoffia californica C. F. Baker 1902-4-6 463 San Mateo Crystal Springs Lake; ; Crystal Springs Lake, San Mateo Co. Comment
  UC1736041  Romulea rosea var. australis Dean W. Taylor 1995-3-14 14751 San Mateo Buri Buri Ridge; west of Hillsborough; west of Skyline Blvd.; San Francisco Fish & Game Refuge, San Francisco Water Department lands 152 Comment
  UC1084381  Rorippa G. Thomas Robbins 1937-4-11 81 San Mateo along Skyline Boulevard near County Jail (s of San Francisco); s of San Francisco Comment
  UC10721  Rorippa curvisiliqua Alice Eastwood 1896-4-1 San Mateo between Crystal Springs and Millbrae; bet. Crystal Springs and Millbrae Comment
  JROH1578  Rorippa palustris subsp. palustris James McMurphy 1906-8-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1587  Rorippa palustris subsp. palustris John Hunter Thomas 1982-11-6 21193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC147627  Rosa californica Elizabeth McClintock; Paul Reeberg 1988-4-30 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC147628  Rosa californica Phillip Wheeler 1965-6-7 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC147631  Rosa californica C. B. Wolf 1931-8-20 2327 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp 91 Comment
  RSA195394  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo Near Crystal Springs Lake. Santa Cruz Mtns. Santa Cruz peninsula. 91 Comment
  CAS-BOT-BC146702  Rosa gymnocarpa J. H. Thomas 1950-4-27 1691 San Mateo Purisima Road near Skyline Blvd. Comment
  JROH3764  Rosa gymnocarpa var. gymnocarpa Toni Corelli 2007-10-31 343 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 1 just before first redwood grove, along north side of trail 80 Comment
  JROH2869  Rosmarinus officinalis Diane Renshaw, Ann Lambrecht 2011-6-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N of Westridge fence near Escobar Rd. turnaround Comment
  UCD92298  Rostraria cristata John Thomas Howell 1973-4-28 49145 San Mateo Burlingame. Comment
  CAS-BOT-BC156646  Rubus bifrons Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue Comment
  RSA165909  Rubus discolor John H. Thomas 1963-9-11 10263 -A San Mateo San Bruno Mtn. Near intersection of Guadalupe Rd and South Hill Blvd. (Location map on voucher.) Comment
  CAS-BOT-BC152836  Rubus parviflorus George Oberlander 1950-4-23 902 San Mateo Pilarcitos Canyon - San Francisco Watershed Reserve Comment
  CAS-BOT-BC152873  Rubus parviflorus Mrs. C. H. Thompson 1904-4-23 s.n. San Mateo Goat Ranch Road, near Corte Madera - Santa Cruz Mountain Peninsula 243 Comment
  UC311143  Rubus parviflorus A. D. E. Elmer June, 1903 4294 San Mateo Alpine School House Comment
  POM140137  Rubus parviflorus var. velutinus Edward L. Greene 1902-1-15 245 San Mateo West side King's Mountain. Comment
  HSC19689  Rubus spectabilis P. A. Murphy 1965-4-15 12 San Mateo 3 mi. from Half Moon Bay on Higgin's Canyon Rd. Comment
  UCSB44344  Rubus spectabilis Brownell, Kathleen 1979-3-27 San Mateo Gazoos Road, 0.7 miles east of Highway 1; Near Butano State Park; Western foothills of the Santa Cruz Mountains; 45 Comment
  CAS-BOT-BC157066  Rubus ursinus Ira L. Wiggins 1925-4-1 1660 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  CAS-BOT-BC157087  Rubus ursinus James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  CAS-BOT-BC157088  Rubus ursinus Robert Robertson 1954-5-1 129 San Mateo Near San Gregorio Creek 6 Comment
  CAS-BOT-BC389668  Rubus ursinus M. Wicksten 1968-6-20 s.n. San Mateo Memorial Park Comment
  JROH3781  Rubus ursinus John Hunter Thomas 1982-5-18 20946 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Searsville Lake near bridge Comment
  RSA89757  Rubus ursinus Philip A. Munz 1954-8-4 19913 San Mateo Montara. Comment
  CAS-BOT-BC422086  Rumex acetosella Elizabeth McClintock 1967-4-16 s.n. San Mateo San Bruno Mountain. Buckeye Canyon. Comment
  CAS-BOT-BC422291  Rumex californicus John H. Thomas 1966-5-25 11636 San Mateo Menlo Park, near Southern Pacific train station. Comment
  JROH3296  Rumex conglomeratus John Hunter Thomas 1990-2-6 24867 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3301  Rumex conglomeratus John Hunter Thomas 1982-6-7 21030 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC421818  Rumex conglomeratus John H. Thomas 1960-6-25 8792 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. -7 Comment
  CAS-BOT-BC421823  Rumex conglomeratus Carl B. Wolf 1929-4-26 3658 San Mateo Woodside Comment
  JROH5595  Rumex crispus John Rawlings 2013-6-13 1189 San Mateo Jasper Ridge Biological Preserve, Stanford University. West end of the shallow depression known as the Semaphore Grass Meadow. 122 Comment
  CAS-BOT-BC433354  Rumex crispus Javier Penalosa 1963-2-23 2656 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC433364  Rumex crispus A. D. E. Elmer 1903-6-1 4266 San Mateo San Mateo Comment
  CAS-BOT-BC433543  Rumex fueginus Ira L. Wiggins 1935-6-29 8049 San Mateo Near mouth of Pescadero Creek, 2 miles west of Pescadero Comment
  JROH3305  Rumex pulcher John H. Thomas 1967-6-1 12964 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3306  Rumex pulcher John H. Thomas 1967-6-1 12964 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC433819  Rumex pulcher A. D. E. Elmer 1903-7-1 4778 San Mateo Pilarcitos Stone Dam Comment
  UCD101450  Rumex pulcher W. A. Harvey; J. M. Tucker 1948-6-28 1695 San Mateo 3 miles north of Pescadero. Comment
  SD39773  Rumex salicifolius Edith A. Purer 1932-7-18 4015 San Mateo Half Moon Bay, sand dunes Comment
  CAS-BOT-BC433996  Rumex salicifolius W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. E. shore of N. pond, Crystal Springs Res. Comment
  UC1191281  Rumex salicifolius var. transitorius Herbert L. Mason and Verne Grant 1946-8-28 13080 San Mateo n of San Francisco county prison Comment
  UC279590  Ruppia maritima W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  JROH1719  Sagina apetala D. E. Breedlove 1971-5-5 19324 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Francisquito Creek, 500 yards below Searsville Dam Comment
  JROH1720  Sagina apetala John Hunter Thomas 1978-4-25 19145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1722  Sagina apetala John Hunter Thomas 1983-4-21 21637 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD163747  Sagina decumbens subsp. occidentalis Peter Rubtzoff 1988-5-3 9916 San Mateo San Bruno Mountain, 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the 'Saddle' area, near its crossing of the upper part of East Fork Colma Creek. Comment
  SEINET4174272  Salicornia virginica G. E. Sindel 1935-7-25 303 San Mateo Mouth of Pescadero Creek Comment
  SEINET6901955  Salicornia virginica Robert A. Evers, Clara V. Evers 1975-8-24 115026 San Mateo Trailer Villa, Redwood City. Comment
  JROH3874  Salix lasiandra var. lasiandra John H. Thomas 1973-4-7 16520 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake Comment
  CAS-BOT-BC166940  Salix lasiolepis Peter Rubtzoff 1976-3-14 8446 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC166959  Salix lasiolepis Peter Rubtzoff 1976-3-14 8447 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  POM167483  Salix lasiolepis A. D. E. Elmer 1903-03 4875 San Mateo Searsville Lake. Comment
  SBBG33482  Salix lasiolepis A. D. E. Elmer -Mar-1903 San Mateo Searsville Lake Comment
  CAS-BOT-BC124479  Salix lasiolepis var. lasiolepis Walter Knight; Irja Knight 1987-10-16 6070 San Mateo San Bruno Mt., 100 yds from corner of Hillside Blvd. and Kearney St. Comment
  CAS-BOT-BC124491  Salix lasiolepis var. lasiolepis Walter Knight; Irja Knight 1965-2-28 862 San Mateo Radio Road at Summer Seep, San Bruno Mt. Comment
  SBBG1241  Salix lucida subsp. lasiandra J. W. Congdon -Aug-1897 San Mateo Pescadero Comment
  CAS-BOT-BC126479  Salix sitchensis W. R. Dudley 1902-4-26 s.n. San Mateo Alpine Road Comment
  CAS-BOT-BC126491  Salix sitchensis A. D. E. Elmer 1903-5-1 4917 San Mateo Portola Comment
  CAS-BOT-BC126503  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's near Pescadero Creek Comment
  CAS-BOT-BC126505  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo From Peters Creek above Iverson's to old mill Comment
  CAS-BOT-BC126516  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's near Pescadero Creek Comment
  CAS-BOT-BC126520  Salix sitchensis W. R. Dudley 1904-3-7 70 San Mateo Bear Gulch, Santa Cruz Mts. 213 Comment
  CAS-BOT-BC166961  Salix sitchensis Peter Rubtzoff 1976-3-14 8448 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  POM167485  Salix sitchensis A. D. E. Elmer 1903-03 4874 San Mateo Portola. Comment
  POM167784  Salix sitchensis C. F. Baker 1902-3-18 390 San Mateo King's Mountain Comment
  POM223618  Salix sitchensis S. S. Berry 1909-3-13 s.n. San Mateo Kings Mtn Rd. 457 Comment
  UC75015  Salix sitchensis unknown 1902-3 San Mateo King's Mt. Comment
  UCD164608  Salix sitchensis Peter Rubtzoff 1975-10-11 8426 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
  SEINET12003697  Salix sitchensis W. R. Dudley 1897-1 s.n. San Mateo Santa Cruz Peninsula, bank of Pescedero Creek below Peter's Creek Comment
  OBI13519  Salvia spathacea Lewis S. Rose 1965-5-3 65059 San Mateo San Bruno Mtn, Colma Cyn 61 Comment
  RSA185018  Salvia spathacea L. S. Rose 1965-5-3 65059 San Mateo San Bruno Mountain, Colma Canyon. 61 Comment
  CAS-BOT-BC235037  Sambucus Roxana S. Ferris 1920-3-8 1765 San Mateo Frenchmans Creek near Ocean Comment
  POM284212  Sambucus caerulea Lyman Benson 1933-6-14 4447 San Mateo Menlo Park 61 Comment
  JEPS13391  Sambucus racemosa var. racemosa W. L. Jepson 1910-8-17 4157 San Mateo Tunitas Creek; near the sea Comment
  SEINET6205025  Sanicula arctopoides L. S. Rose 1965-1 65012 San Mateo San Bruno Mts, N end. Comment
  JEPS127773  Sanicula bipinnatifida Adam C. Schneider with C. Matt Guilliams 2013-3-9 49 San Mateo Comment
  UCD127932  Sanicula bipinnatifida R. E. Dengler 1960-4-14 33 San Mateo Jasper Ridge, Stanford Biological Reserve. 121 Comment
  HSC24030  Sanicula crassicaulis Mary Katherine Wicksten 1971-6-17 72 San Mateo Huddart Park, along Chickadee Trail Comment
  JROH338  Sanicula crassicaulis John H. Thomas 1974-5-3 17243 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176825  Sanicula crassicaulis John H. Thomas 1961-5-5 9212 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  JEPS85243  Sanicula hoffmannii Roy E. Buck and James A. West 1985-6-3 533 San Mateo on upper ne-facing slope of large gulch draining nw to Whitehouse Creek (ca 2.5 air km ne of Whitehouse Canyon Rd-CA Hwy 1 jct., 3.7 km nne of Franklin Point); Cascade Ranch 182 Comment
  RSA175250  Satureja douglasii Robert F. Thorne, P. Everett 1963-6-9 32244 San Mateo On top of San Bruno Mountain. 335 Comment
  RSA218024  Satureja douglasii Walter Knight, Elizabeth McClintock, I. Knight 1963-9-2 s.n. San Mateo San Bruno Mountains; Power Line Ridge. Comment
  RSA135629  Schoenoplectus maritimus Roxana S. Ferris 1920-8-11 2037 San Mateo Santa Cruz Mountain Peninsula: End of Embarcadero Road, near Palo Alto Comment
  POM265000  Schoenoplectus pungens I. L. Wiggins 1928-4-22 2947 San Mateo Moss Beach Comment
  SEINET11754562  Schoenoplectus pungens Unknown 1932-1 9115 San Mateo Half Moon Bay 0 Comment
  UC1100829  Scirpus microcarpus Malcolm A. Nobs, S. Galen Smith 1949-8-25 1559 San Mateo marshes at Sharp Park Comment
  UC2159  Scirpus microcarpus J. Burtt Davy 1893-6-22 765 San Mateo marsh at head Lake Pilarcitos; marsh at head Lake Pilarcitos Comment
  CAS-BOT-BC519000  Scoliopus bigelovii J. H. Thomas 1949-3-29 194 San Mateo Kings Mountain Comment
  CAS-BOT-BC519017  Scoliopus bigelovii Alice Eastwood 1922-3-1 s. n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC519018  Scoliopus bigelovii Alice Eastwood 1933-5-31 18842 San Mateo Butano Canon Comment
  UC454434  Scoliopus bigelovii Manton Feb. 1906 San Mateo Comment
  CDA7621  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  JROH5461  Scribneria bolanderi John Rawlings 2008-5-4 1033 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vicinity of Phalaris californica seep. 171 Comment
  JROH4126  Scrophularia californica John H. Thomas 1975-6-5 17929 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lowflow crossing Comment
  UC25840  Scutellaria tuberosa Maclean 1027 San Mateo near Pescadero Comment
  UC884214  Scutellaria tuberosa Lewis S. Rose 1933-5-21 33179 San Mateo Belmont Comment
  CAS-BOT-BC327388  Senecio aphanactis Fred Hemphill 1973-4-22 798 San Mateo North of Malabar Road adn Melendy Drive, San Carlos 207 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
  JEPS22901  Senecio aronicoides John H. Thomas 1958-5-10 7163 San Mateo about 5.0 mi sw Palo Alto; Jasper Ridge 152 Comment
  CAS-BOT-BC363386  Senecio aronicoides Walter Knight; Irja Knight 1965-2-28 869 San Mateo Pacifica ca 300-400 yds E. of parking area Comment
  CAS-BOT-BC363391  Senecio aronicoides Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City, after Hesler farm entrance Comment
  CAS-BOT-BC363402  Senecio aronicoides Kellogg No date on label s.n. San Mateo Crystal Springs Comment
  JROH1218  Senecio aronicoides John H. Thomas 1961-5-5 9219 San Mateo Jasper Ridge Biological Preserve, Stanford University; at NW end of ridge 152 Comment
  RSA0012756  Senecio aronicoides C. F. Baker 1902-5-4 746 San Mateo Woodside. Comment
  CAS-BOT-BC364241  Senecio sylvaticus John H. Thomas 1965-4-29 10618 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS27356  Senecio sylvaticus Rimo Bacigalupi with Jim Roof and L. R. Heckard 1961-4-24 7617 San Mateo shoulder of spur facing almost due e KQED radio tower and power station; Summit of San Bruno Mountain 350 Comment
  CAS-BOT-BC364239  Senecio sylvaticus Javier Penalosa 1963-3-9 2668 San Mateo San Bruno Mountain. Slopes southeast of 1314 ft. summit 381 Comment
  CAS-BOT-BC364634  Senecio vulgaris Fred Hemphill 1973-3-17 634 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  SEINET5571340  Senecio vulgaris H. S. Gentry 1931-1 96 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC80291  Sequoia sempervirens W. R. Dudley 1902-2-9 s.n. San Mateo Black Mt., Alpine Road Comment
  CAS-BOT-BC80298  Sequoia sempervirens J. H. Thomas 1949-10-16 1141 San Mateo Along La Honda Creek, about 0.7 miles north of La Honda Comment
  UC429816  Sequoia sempervirens W. R. Dudley 1901-1 San Mateo near Searsville Comment
  CAS-BOT-BC85777  Sequoia sempervirens W. R. Dudley 1897-1-1 s.n. San Mateo Santa Cruz Mountain Peninsula, by Hamilton's Comment
  SEINET8057876 Image available Sequoia sempervirens M. E. Springer 1946-1 735 San Mateo Skyline Blvd. near La Honda Comment
  CDA2435  Setaria parviflora I. J. Campbell 1958-8-12 1015 San Mateo Redwood City. 0 Comment
  CDA2436  Setaria parviflora E. L. Labadie 1958-7-8 833 -58 San Mateo Redwood City. 0 Comment
  JROH5465  Setaria viridis John Rawlings 2011-7-28 1077 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek near Dennis Martin site. 71 Comment
  CDA6645  Sherardia arvensis D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  UCR121586  Sherardia arvensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4965 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
  CDA6642  Sherardia arvensis Wm. Davis 1958-6-5 San Mateo San Bruno. 0 Comment
  SBBG83432  Sherardia arvensis B. Bowman 1961-3-30 30 San Mateo corner of Sebastian Drive and Lassuen Court; Burlingame 9 Comment
  JEPS112710  Sidalcea diploscypha Dean W. Taylor 1994-5-10 14265 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
  UCD116803  Sidalcea malviflora Gerald W. Sodomka 1963-5-5 36 San Mateo Moss Beach. 30 Comment
  JEPS48780  Sidalcea malviflora subsp. laciniata James G. Daly 1934-1 211 San Mateo branch of La Honda Canyon Santa Cruz Mts., , La Honda Canyon (San Gregorio Watershed) Comment
  RSA130377  Sidalcea malviflora subsp. malviflora W. R. Dudley 1900-3-17 s.n. San Mateo By road, top of Montara Mts. Comment
  JROH1730  Silene gallica John H. Thomas 1965-4-28 10595 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC386857  Silene gallica Margaret Barry 1937-5-15 144 San Mateo on Coal Mine Ridge Comment
  CAS-BOT-BC386858  Silene gallica H. A. Dutton 1900-4-29 s.n. San Mateo Woodside Serpentine Comment
  JROH1732  Silene gallica John H. Thomas 1971-4-10 15757 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389195  Silene laciniata subsp. californica A. D. E. Elmer 1903-6-1 4446 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC389894  Silene scouleri subsp. scouleri C. F. Leitholt 1894-7-29 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Comment
  CAS-BOT-BC175275  Silene verecunda Phillip C. Wheeler 1965-5-11 s.n. San Mateo Southwest canyon below NBC towers Comment
  CHSC39827  Sisyrinchium bellum Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  UCR101612  Sisyrinchium bellum George K. Helmkamp, E. A. Helmkamp 1998-5-16 3746 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  POM196491  Sisyrinchium californicum Roxana S. Ferris 1920-4-26 1973 San Mateo Near mouth of Arroyo de los Frijoles 30 Comment
  UCD165023  Sisyrinchium californicum Peter Rubtzoff; Roman Gankin 1975-5-21 7969 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA790890  Sisyrinchium californicum Peter Rubtzoff 1975-5-21 7969 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  UC1084412  Smilacina racemosa G. Thomas Robbins 1937-4-11 110 San Mateo hillside above Redwood City Comment
  UC1134665  Smilacina racemosa G. E. Sindel 1935-8-2 342 San Mateo Harington Creek Santa Cruz Quadrangle (head) Comment
  IRVC9061  Smilacina stellata var. sessilifolia P. W. Rundel 1962-4-12 1017 A San Mateo 1 mile East of Skyline Hwy on La Honda Rd. Comment
  JROH4179  Solanum americanum John Hunter Thomas 1982-7-2 21054 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing Comment
  JROH6178  Solanum americanum John Rawlings 2017-10-3 2302 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek 111 Comment
  UC1327228  Solanum furcatum John T. Doyen 1966-3-28 34 San Mateo San Bruno Mountains, near Radio Towers on top San Bruno Mountains Comment
  UC1332473  Solanum furcatum G. L. Stebbins Jr. and J. W. Duffield 1938-10-24 19 San Mateo Mussell Rock Comment
  UC1332475  Solanum furcatum G. L. Stebbins Jr. and E. F. Paddock 1940-9-7 101 San Mateo at junction of three upper forks of San Pedro Creek (1 mi from seashore, San Pedro Valley); San Pedro Valley 30 Comment
  SEINET12315683  Solanum furcatum M. T. Doutt 1931-1 187 San Mateo Ano Nuevo Pt Comment
  UC563964  Solanum physalifolium var. nitidibaccatum Ira L. Wiggins 1935-8-24 8164 San Mateo 1/2 mi s of Moss Beach Comment
Read comments
Mar 12 2009
  JROH4190  Solanum umbelliferum John H. Thomas 1973-3-12 16496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4192  Solanum umbelliferum John H. Thomas 1976-4-2 18071 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY820569  Solanum umbelliferum L. Abrams 1914-4-2 5073 San Mateo Woodside Comment
  UC139876  Solanum umbelliferum C. F. Baker 1902-1-15 234 San Mateo w side of King's Mountain King's Mountain Comment
  NY820593  Solanum umbelliferum D. Demarée 1932-4-9 8981 San Mateo Los Troncos Woods Comment
  OBI9135  Solanum umbelliferum E. K. Balls 1948-3-19 7871 San Mateo Skyline Dr about 12 mi N of Santa Cruz 244 Comment
  RSA681607  Solanum umbelliferum Annuschka Deb 1989-4-19 115 San Mateo YBN Berm near parking lot. From Fanny Arnold's ranch. Comment
  SEINET7262166 Image available Solanum umbelliferum S. B. Snow 1907-2-18 16 San Mateo Jasper Ridge Comment
  UC1537406  Solanum umbelliferum Gordon H. True Jr. 1936-4-5 385 San Mateo between San Gregorio Pescadero (near coast) 30 Comment
  UCD40949  Solanum wallacei J. Skoss 1948-8-22 113 San Mateo San Vincente Canyon, near Montara. Comment
Read comments
Aug 8 2007
  RSA507799  Solidago canadensis J. C. Semple, S. Heard 1986-8-23 8591 San Mateo Ca-1 ca. one km south of Pescadero State Beach. Comment
  POM183401  Solidago canadensis subsp. elongata L. S. Rose 1931-9-19 s.n. San Mateo Kings Mountain. Comment
  SD27769  Solidago canadensis subsp. elongata Carl B. Wolf 1927-6-29 568 San Mateo on the coast 3 mi. S. of San Gregorio. Comment
  LA203952  Solidago elongata Lewis B. Rose; 1931-9-19 San Mateo Kings Mt Comment
  CAS-BOT-BC365190  Solidago velutina subsp. californica W. R. Dudley 1894-11-2 s.n. San Mateo Santa Cruz Peninsula. Near road to McDonough's Ranch, Portola Valley Comment
  JEPS27366  Soliva sessilis Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7626 San Mateo Guadalupe Valley side of the summit San Bruno Mountain (on lateral ridge below and se end of paved ridge-top road just e of KRON television tower and station); Guadalupe Valley side of the summit San Bruno Mountain 304 Comment
  CAS-BOT-BC353415  Soliva sessilis Peter Rubtzoff 1977-4-14 8940 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. East Fork Colma Creek canyon area, San Bruno Mountains. Comment
  JROH1254  Soliva sessilis John Hunter Thomas 1992-5-5 25212 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA320914  Soliva sessilis Robert A. Norris 1984-3-21 4651 San Mateo Along trail in saddle between Parking Area (and summit) and Blue Blossom Hill, San Bruno Mtns. 305 Comment
  CAS-BOT-BC374701  Sonchus oleraceus John H. Thomas 1963-5-20 10112 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC374709  Sonchus oleraceus Elizabeth McClintock 1963-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  UCSB18413  Sonchus oleraceus Hutchinson, Sandra 1964-3-24 San Mateo Crystal Springs Lake, Sawyer Camp Road, about 2.7 miles off Skyline Blvd., entrance off Millbrae Ave. 106 Comment
  JROH5519  Sparganium eurycarpum var. eurycarpum James McMurphy 1906-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JROH1743  Spergula arvensis John Hunter Thomas 1978-4-25 19157 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5600  Spergula arvensis John Rawlings 2014-3-18 1209 San Mateo Jasper Ridge Biological Preserve, Stanford University; upper trail 3. 187 Comment
  SJSU15845  Spergula arvensis John Rawlings 2015-1-23 1278 San Mateo San Bruno Mountain; southeast ridge fire road above Owl Canyon 351 Comment
  UCSC003832  Spergula arvensis Unknown unknown s.n. San Mateo Half Moon Bay, 2 miles inland. Half Moon Bay 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
  JROH1757  Spergularia John Hunter Thomas 1978-4-25 19156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1767  Spergularia John Hunter Thomas 1988-4-27 24411 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC390199  Spergularia bocconi R. I. Gilbreath 1975-8-1 0084 San Mateo In school yard on Alberta Way, Hillsborough 167 Comment
  CAS-BOT-BC390204  Spergularia bocconi G. B. Rossbach; R. P. Rossbach 1940-6-20 737 San Mateo 1 mile south of Montara Point Comment
  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-BC390749  Spergularia marina Elizabeth McClintock; Paul Reeberg 1989-6-13 s.n. San Mateo San Bruno Mountains. P.G.&.E. Marsh Comment
  CAS-BOT-BC390919  Spergularia marina John Thomas Howell 1924-9-28 662 San Mateo At the Leslie Salt Refinery Comment
  RSA128560  Spergularia salina P. H. Raven 1950-5-7 2039 San Mateo Moss Beach. Comment
  SBBG29843  Stachys ajugoides L. S. Rose 1936-5-23 s.n. San Mateo E of Crystal Springs Lake 152 Comment
  SJSU15796  Stachys ajugoides Toni Corelli 2010-7-8 657 San Mateo Bean Hollow State Beach. On east side of Arryo de los Frijoles Trail. 10 Comment
  SJSU15801  Stachys ajugoides Toni Corelli 2010-6-1 637 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 25 Comment
Read comments
Dec 26 2021
  RSA582109  Stachys ajugoides L. S. Rose 1936-5-23 s.n. San Mateo E. of Crystal Springs Lake. 152 Comment
  UC25937  Stachys bullata J. Burtt Davy 1895-4-20 1036 San Mateo Lake San Andreas Comment
  RSA101015  Stachys bullata G. Oberlander 1949-4-30 139 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  RSA116738  Stachys bullata W. R. Dudley 1894-7-7 s.n. San Mateo Bear Gulch Road. The Santa Cruz Mtn Peninsula. Comment
  UC202802  Stachys chamissonis A. D. E. Elmer July 1903 4760 San Mateo Pilarcitos Stone Dam Comment
  SEINET3559385 Image available Stachys pycnantha Lewis S. Rose 1934-5-27 34279 San Mateo Emerald Lake. Comment
  RSA217963  Stachys rigida subsp. quercetorum Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain, slope below parking lot. Comment
  RSA218025  Stachys rigida subsp. quercetorum Elizabeth McClintock, Carlyn Halde 1963-6-23 s.n. San Mateo East-facing slope below parking lot, San Bruno Mountain Comment
  CAS-BOT-BC5588  Stachys rigida var. quercetorum A. A. Heller 1907-5-28 8581 San Mateo Back of San Mateo on the Half Moon Bay road, about 3 miles beyond San Mateo 91 Comment
  JROH2893  Stachys rigida var. quercetorum John H. Thomas 1974-4-19 17158 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar gate Comment
  NY380638  Stachys viarum A. A. Heller 1907-5-28 8581 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UC36684  Stebbinsoseris heterocarpa Alice Eastwood May 1890 - May 1896 San Mateo Crystal Springs 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
  JROH5323  Stipa lepida John H. Thomas 1977-5-14 18610 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5333  Stipa pulchra John H. Thomas 1963-3-20 10023 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5748  Stipa pulchra M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Whiskey Hill Gate Comment
  SEINET5576368  Streptanthus cordatus H. S. Gentry 1931-1 8 San Mateo Collected outskirts of San Bruno on west side. Comment
  SD38069  Stylomecon heterophylla Edith A. Purer 1933-5-5 3630 San Mateo Woodside Road. Comment
  CAS-BOT-BC271637  Symphoricarpos albus var. laevigatus C. F. Baker 1901-9-5 238 San Mateo West side Kings Mt. 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
  CAS-BOT-BC271642  Symphoricarpos albus var. laevigatus W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Canyon near head Los Trancos Creek, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC271647  Symphoricarpos albus var. laevigatus C. B. Wolf 1931-8-20 1194 San Mateo Los Trancos Creek 2 miles back of Stanford University near Schenkel's Camp 91 Comment
  JROH1683  Symphoricarpos albus var. laevigatus John Hunter Thomas 1980-5-1 19908 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA246190  Symphoricarpos albus var. laevigatus E. K. Balls 1965-9-18 12170 San Mateo 1 mile W from Skywood along Hwy 81 from Woodside to junction with Hwy 35. Comment
  CAS-BOT-BC99052  Symphyotrichum chilense Lewis S. Rose 1933-10-14 33381 San Mateo Visitacion Valley Comment
  SD30757  Symphyotrichum chilense Edith A. Purer 1933-8-25 5521 San Mateo Spring Valley, along roadside Comment
  UC892754  Symphyotrichum chilense Lewis S. Rose 1933-10-14 33381 San Mateo Visitacion Valley, (dry hills) Vistacion Valley Comment
  CAS-BOT-BC99092  Symphyotrichum chilense W. R. Dudley 1895-9-21 s.n. San Mateo Menlo Park - Santa Cruz Peninsula Comment
  JEPS20079  Symphyotrichum subspicatum Peter H. Raven 1957-9-1 11294 San Mateo 1.1 mi s of, Pigeon Point Lighthouse Comment
  JEPS81902  Symphyotrichum subspicatum Roger Raiche 1982-9-6 20720 San Mateo Montara Mt. 30 Comment
  UC1544807  Symphyotrichum subspicatum Almut G. Jones 1986-8-23 7251 San Mateo Near Half Moon Bay 50 Comment
  SJSU11814  Symphyotrichum subspicatum R. R. Regnart 1961-5-7 San Mateo by Purissima Creek Road by Purissima Creek 0.5 mi E of Purissima Comment
  SJSU11816  Symphyotrichum subspicatum R. L. Sears 1968-5-18 73 San Mateo by Higway One, 3 miles N of Pescadero Comment
  JROH1285  Taraxacum officinale John H. Thomas 1969-4-12 14886 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area below dam Comment
  JROH1286  Taraxacum officinale John H. Thomas 1976-4-19 18084 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA176767  Tellima grandiflora John H. Thomas 1961-5-5 9209 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  UC1127673  Tellima grandiflora H. S. Yates 1935-5-8 5213 San Mateo 1.5 mi s Mindego Hill; Santa Cruz Quad. 335 Comment
  CAS-BOT-BC447474  Tellima grandiflora Philip C. Wheeler 1965-5-12 s.n. San Mateo South canyon below western power lines Comment
  CAS-BOT-BC447483  Tellima grandiflora Le Roy Abrams 1901-5-1 1558 San Mateo Searsville-Bear Gultch Comment
  CAS-BOT-BC447485  Tellima grandiflora Peter Rubtzoff 1953-5-14 1341 San Mateo Pilarcitas Creek canyon 1 to 2 miles downstream from Pilarcitas Lake Comment
  UCD96952  Tetragonia tetragonoides Beecher Crampton 1962-6-11 6517 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  HSC23324  Tetragonia tetragonoides L. A. Wright 1971-4-9 30 San Mateo 10 ft. from W end of Coyote Pt. Beach parking lot, N side of Coyote Pt., 100 ft. S from San Francisco Bay, 1 mi. E of Hwy. 101 off of Coyote Pt. Rd., San Mateo 5 Comment
  JROH3509  Thalictrum fendleri var. polycarpum D. E. Breedlove 1971-5-31 19373 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH5910  Thalictrum fendleri var. polycarpum L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail between Escobar Gate and the weather station. Comment
  UCD93350  Thinopyrum ponticum John C. Throckmorton 1976-6-29 s.n. San Mateo La Honda, Star Route 1. Comment
  CAS-BOT-BC66660  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66674  Thysanocarpus curvipes John H. Thomas 1977-4-2 18507 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1614  Thysanocarpus curvipes John Hunter Thomas 1987-4-16 24205 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC447583  Tiarella trifoliata var. unifoliata W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Mountain Peninsula: Pescadero Creek near Iverson's Comment
  JROH377  Torilis arvensis John Hunter Thomas 1989-6-13 24770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH385  Torilis nodosa John Hunter Thomas 1981-4-30 20521 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH386  Torilis nodosa John Hunter Thomas 1981-5-14 20572 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old shack riders shack Comment
  POM181976  Torreya californica Anonymous s.n. San Mateo Santa Cruz Mountains Comment
  UC754286  Torreya californica Ira L. Wiggins 1945-5-5 11161 San Mateo about 1 mi above La Honda (along La Honda Creek); La Honda Creek 152 Comment
  JROH4755  Toxicoscordion fremontii John H. Thomas 1956-4-7 5604 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  JROH4756  Toxicoscordion fremontii John H. Thomas 1971-4-10 15760 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4761  Toxicoscordion fremontii John Hunter Thomas 1982-2-19 20800 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral near Goya Gate Comment
  CAS-BOT-BC389711  Tragopogon porrifolius L. Sigal 1969-5-1 280 San Mateo Campus of San Mateo Comment
  RSA460866  Trientalis latifolia E. S. Spalding 1924-6-28 s.n. San Mateo San Mateo, La Honda Comment
  RSA116716  Trientalis latifolia Josephine Randall 1908-5-20 s.n. San Mateo Iversons near Peter Creek Comment
  UC16490  Trifolium albopurpureum var. dichotomum Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  CAS-BOT-BC157982  Trifolium amplectens Peter Rubtzoff; Barbara Deutsch 1979-5-27 9285 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction Comment
  JEPS128163  Trifolium angustifolium Eric Wrubel 2012-7-1 NPS 43 San Mateo Golden Gate National Recreation Area. Rancho Corral de Tierra, Spine Trail. 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
  UC165625  Trifolium bifidum var. decipiens J. Burtt Davy 1895-1 1019 San Mateo Pilarcitos Comment
  UC630933  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-5-2 10098 San Mateo e Daly city (hills) Comment
  JEPS127789  Trifolium depauperatum var. truncatum Adam C. Schneider with C. Matt Guilliams 2013-4-7 60 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  POM88138  Trifolium dichotomum L. R. Abrams 1902-5-4 2420 San Mateo Woodside- Serpentine Hills Comment
  JROH2280  Trifolium dubium John Hunter Thomas 1980-4-10 19878 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  UCR101649  Trifolium dubium George K. Helmkamp, E. A. Helmkamp 1998-5-16 3744 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  JROH2282  Trifolium fucatum Robert Robertson 1954-4-23 100 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH2304  Trifolium fucatum John Hunter Thomas 1986-4-30 23985 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB7299  Trifolium fucatum Walker, Clifford 1954-4-20 San Mateo 50 yds. from ocean, 1 mi. S of Half Moon Bay Comment
  POM126277  Trifolium fucatum var. fucatum R. L. Pendleton 1907-4-20 622 San Mateo Ocean View. 122 Comment
  RSA18329  Trifolium grayi Carl B. Wolf 1929-5-10 3706 San Mateo Coast at Pigeon Pt. South of Pescadero. Comment
  RSA46809  Trifolium microcephalum Doris K. Kildale 1930-6-19 8009 San Mateo 1.5 miles north of La Honda. Comment
  POM278622  Trifolium oliganthum Lyman D. Benson 1935-5-5 6525 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  JROH2344  Trifolium repens John H. Thomas 1974-10-29 17645 San Mateo Jasper Ridge Biological Preserve, Stanford University; small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH2389  Trifolium variegatum John Hunter Thomas 1991-5-2 25007 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI75561  Trifolium variegatum Lewis S. Rose 1937-5-2 37251 San Mateo Burlingame 91 Comment
  UCSC006378  Trifolium variegatum Randall Morgan 1995-6-22 2796 San Mateo On flat top ridge W of Waterman Creek, Redtree Properties 335 Comment
  JROH2408  Trifolium willdenovii John Hunter Thomas 1984-5-3 23332 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4726  Trillium chloropetalum John H. Thomas 1973-5-5 16759 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA39377  Trillium chloropetalum A. C. Browne 1950-3-27 72 San Mateo Jasper Ridge. 0 Comment
  HSC101806  Trillium chloropetalum Kjirsten A. Wayman, Brett Hall, Jim West 2012-3-23 303 San Mateo Gazos Creek Road, between Hwy 1 and Cloverdale Rd. N 37.17445 W 122.35336 3 Comment
  RSA15264  Trillium chloropetalum var. chloropetalum Carl B. Wolf 1927-2-27 228 San Mateo Near Pescadero, 1/2 mile inland. Comment
  CAS-BOT-BC521204  Trillium chloropetalum var. giganteum Ira L. Wiggins 1931-2-21 5092 San Mateo Pescadero Beach Comment
  CAS-BOT-BC133436  Trillium ovatum Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  UCR55868  Trillium ovatum Ray Langham 1966-4-3 121 San Mateo [NW] of La Honda, King's Grove [apparently vicin. of Tunitas Creek Rd., Mitchell Creek drainage] 229 Comment
  SD39139  Trillium rivale Edith A. Purer 1933-4-18 3621 San Mateo No further locality information given on label on specimen sheet. Comment
Read comments
Nov 11 2010
  SD39140  Trillium sessile Edith A. Purer 1933-4-18 3619 San Mateo No further locality information given on label on specimen sheet. Comment
  JEPS40977  Triphysaria eriantha subsp. rosea Lewis S. Rose 1965-3-25 65010 San Mateo n end San Bruno Mts.; n end San Bruno Mts. 121 Comment
  CAS-BOT-BC238573  Triphysaria floribunda A. D. E. Elmer 1903-4-1 4522 San Mateo South San Francisco Comment
  UC75150  Triphysaria floribunda C. F. Baker 1902-3-22 346 San Mateo South San Francisco Comment
  UCR139346  Triphysaria floribunda David D. Keck 1932-5-6 1471 San Mateo San Francisco Bay Region, 1 mi south of San Mateo on Highway US 101 61 Comment
  JROH4136  Triphysaria pusilla John H. Thomas 1966-4-22 11572 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD93599  Trisetum canescens P. B. Kennedy 1916-4-1 s.n. San Mateo Daly City, Colma Canyon, S San Francisco. Comment
  CAS-BOT-BC193499  Trisetum cernuum George Oberlander 1950-6-3 1018 San Mateo Cahill Ridge, San Francisco Watershed Reserve Comment
  UCR101614  Triteleia George K. Helmkamp, E. A. Helmkamp 1998-5-16 3751 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  JROH4736  Triteleia hyacinthina John H. Thomas 1963-5-12 10082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM277006  Triteleia ixioides subsp. ixioides Lyman Benson 1930-5-3 2093 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  CAS-BOT-BC523095  Triteleia ixioides subsp. ixioides W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Peninsula, from Woodside to Crystal Springs Lake Comment
  CAS-BOT-BC526102  Triteleia ixioides subsp. ixioides Josephine D. Randall 1907-6-8 233 San Mateo Santa Cruz Peninsula, Portola Valley Comment
  JROH4751  Triteleia laxa John H. Thomas 1976-5-26 18157 a San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18305  Triteleia laxa Carl B. Wolf 1927-5-31 411 San Mateo North end of Searsville Lake. Comment
  CAS-BOT-BC526787  Triteleia laxa George Oberlander 1950-5-6 892 San Mateo Under Douglas Fir, Cahill Ridge Comment
  CAS-BOT-BC526788  Triteleia laxa Ned Cahill 1974-4-29 174 San Mateo Serpentine fields bordered by chaparral near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  JROH5537  Typha angustifolia M. Whitley 1990-5-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By west edge of dam. Comment
  CAS-BOT-BC212677  Ulex europaeus Phillip C. Wheeler 1965-5-17 s.n. San Mateo In Crocker Hills near Cow Palace Comment
  JEPS87362 Image available Ulex europaeus Don Pendleton 1993-10-28 San Mateo 0.3 mi e San Bruno Mountain County Park Gatehouse (on Guadalupe Canyon Parkway); San Bruno Mountain County Park 300 Comment
  JEPS87363  Ulex europaeus Don Pendleton 1993-10-28 San Mateo 0.3 mi e San Bruno Mountain County Park Gatehouse (on Guadalupe Canyon Parkway); San Bruno Mountain County Park 300 Comment
  RSA563837  Ulex europaeus Don Pendleton 1993-10-28 s.n. San Mateo San Bruno Mountain State/County Park, 0.3 mi. E. of the park gate/parking lot on Guadalupe Canyon Park. 300 Comment
  RSA625696  Ulex europaeus Don Pendleton 1993-11-20 s.n. San Mateo Daly City at 222 Hickey Boulevard Comment
  UCSB26557  Ulex europaeus Havlik, Neil 1969-3-27 San Mateo North side of San Bruno Mountain, near the junction of Radio Road and Guadalupe Road Comment
  CAS-BOT-BC91224  Umbellularia californica John H. Thomas 1971-5-2 15860 San Mateo Near intersection of Canada and Edgewater roads, about 4 miles southwest of center of Redwood City. 304 Comment
  JROH139  Umbellularia californica John H. Thomas 1974-10-12 17621 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM50398  Umbellularia californica L. R. Abrams, W. W. Eggleston 1924-3-23 19565 San Mateo Coast Range, near Palo Alto. 60 Comment
  RSA623612  Umbellularia californica C. B. Wolf 1928-2-11 1471 San Mateo East base of Kings Mountain Road.. . Comment
  UC36687  Uropappus lindleyi Alice Eastwood Apr 1896 San Mateo Crystal Springs Comment
  CAS-BOT-BC404026  Urtica dioica subsp. holosericea Saichi Kawahara 1968-7-29 463 San Mateo Side road off Old Stage Road at south bank of Pomponio Creek 36 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
  POM580641  Urtica urens Lyman D. Benson 1935-5-12 6548 San Mateo Menlo Park 30 Comment
  CAS-BOT-BC412535  Urtica urens John H. Thomas 1967-2-9 12405 San Mateo Half Moon Bay. Near Mills St. and Purissima St. Comment
  CAS-BOT-BC199352  Vaccinium ovatum Rose M. Higley 1907-4-27 141 San Mateo La Honda Comment
  CAS-BOT-BC199357  Vaccinium ovatum Reed C. Rollins 1942-4-30 3003 San Mateo S.E. slope of San Bruno Hills, about 1 mile west of Brisbane Comment
  CAS-BOT-BC199358  Vaccinium ovatum A. D. E. Elmer 1903-4-1 4561 San Mateo King's [Kings] Mountain Comment
  CAS-BOT-BC199367  Vaccinium ovatum Josephine D. Randall 1907-7-28 140 San Mateo Iversons near Pescadero Creek Comment
  CAS-BOT-BC199368  Vaccinium ovatum James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  JEPS85569  Vaccinium ovatum Craig Dremann 1986-8-30 329 San Mateo entrance to Memorial Park, off Pescadero road Loma Mar Comment
  RSA624004  Vaccinium ovatum James I. McMurphy 1906-5-20 79 San Mateo Kings Mountain, Santa Cruz Mts. 457 Comment
  CAS-BOT-BC199465  Vaccinium parvifolium A. D. E. Elmer 1903-5-1 4924 San Mateo Butano Creek Comment
  UC22218  Vaccinium parvifolium W. J. V. Osterhout Jul 1899 San Mateo Near Pescadero Comment
  UC1206448  Vancouveria planipetala W. R. Dudley 1895-6-6 San Mateo near Peters Creek (this side of Iverson's); Santa Cruz Peninsula, near Peters Creek Comment
  POM177507  Vancouveria planipetala W. R. Dudley 1895-6-6 s.n. San Mateo By road in Redwoods this side of Iverson s near Peter s Creek. Comment
  CAS-BOT-BC389699  Verbena lasiostachys Lorene Sigal 1969-7-1 s.n. San Mateo At Polhemus Road and Crystal Springs Road junction Comment
  CDA40703  Verbena lasiostachys var. lasiostachys C. M. Sill 1961-7-1 s.n. San Mateo Laurel School, Menlo Park. 0 Comment
  UC615560  Verbena lasiostachys var. scabrida Beryl O. Schreiber 1932-5-29 307 San Mateo Crystal Springs Comment
  POM64686  Verbena robusta A. D. E. Elmer 1903-07 4950 San Mateo Crystal Springs Lake. Comment
  JROH4151  Veronica peregrina subsp. xalapensis John H. Thomas 1974-4-25 17218 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA6415  Veronica persica Wm. Davis 1958-1-13 20 -58 San Mateo Half Moon Bay. 0 Comment
  JROH4155  Veronica persica Carol Zabel 2007-4-30 67 San Mateo Jasper Ridge Biological Preserve, Stanford University; caretaker's garden area and other areas around the caretaker's residence Comment
  CAS-BOT-BC389667  Vicia americana Mark Nagumo 1966-4-23 s.n. San Mateo Right bank of road east of Crystal Springs Comment
  RSA34061  Vicia americana var. americana A. A. Heller 1907-4-20 8449 San Mateo Lake Merced Comment
  POM278032  Vicia angustifolia Lyman D. Benson 1930-5-21 2144 San Mateo Lake Searsville. 152 Comment
  RSA397971  Vicia benghalensis E. A. Purer 1932-7-16 15925 San Mateo Near Pigeon Point Comment
  SD2655  Vicia cracca Ulysses S. Grant IV 1925-6-4 San Mateo Burlingame Comment
  UCR130219  Vicia gigantea George K. Helmkamp, E. A. Helmkamp 1999-6-28 4999 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  SEINET7076099  Vicia sativa A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Long