Search Results — 2000 specimen records retrieved (1329 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC383896  Abronia latifolia J. H. Thomas 1954-4-3 3830 San Mateo Dunes Beach, about 1.5 miles NW of Half Moon Bay. Altitude about sea level Comment
  UC577087  Abronia umbellata Lewis S. Rose 1935-10-12 35654 San Mateo Salada 3 Comment
  UCR253356  Acacia A. C. Sanders 2014-8-3 41230 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  CAS-BOT-BC451117  Acaena pinnatifida var. californica Le Roy Abrams 1901-5-1 1622 San Mateo Colma 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
  JEPS15238  Acaena pinnatifida var. californica Rimo Bacigalupi with G. T. Robbins, L. T. Dempster and S. Galen Smith 1956-5-15 5644 San Mateo near summit of first range of hills due w. San Bruno (ca. 1/4 mi. e. of Skyline Blvd.) 137 Comment
  JEPS30400  Acaena pinnatifida var. californica James B. Roof, Irja Knight 1963-4-24 San Mateo w. end of San Bruno Mt. (slopes above Colma Canyon, Daly City); Daly City, San Bruno Mt. Comment
  UC1176934  Acaena pinnatifida var. californica Peter H. Raven 1950-4-16 1795 San Mateo summit ridge San Bruno Mts. 182 Comment
  UC137274  Acaena pinnatifida var. californica C. F. Baker 1902-5-1 688 San Mateo Crystal Springs Lake Comment
  UC311144  Acaena pinnatifida var. californica A. D. E. Elmer April, 1903 4823 San Mateo San Bruno Hills Comment
  CAS-BOT-BC451125  Acaena pinnatifida var. californica Ira L. Wiggins 1942-5-26 10096 San Mateo Near the ocean, 2 1/2 miles south of Pescadero on the Old Coast Road. Comment
  CAS-BOT-BC219605  Acanthomintha duttonii David D. Keck 1940-5-15 5034 San Mateo Emerald Lake, west of Redwood City Comment
  UC311537  Acanthomintha duttonii A. D. E. Elmer May, 1903 4538 San Mateo Crystal Springs Lake Comment
  LA55133  Acanthomintha ilicifolia Harry A. Dutton; Harriet A. Walker 1915-5-29 3819 San Mateo near the Menlo Golf Club Comment
Read comments
Jul 30 2017
  RSA0076538  Acanthomintha obovata subsp. duttonii L. R. Abrams 1920-6-1 7500 San Mateo Back of Redwood City. Comment
  JROH167  Acer negundo John H. Thomas 1968-3-17 14175 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake 106 Comment
  CAS-BOT-BC21553  Achillea millefolium Walter Knight; Irja Knight 1965-4-25 1074 San Mateo San Bruno Mountain. Owl's Canyon. Comment
  CAS-BOT-BC21581  Achillea millefolium Ned Cahill 1974-4-19 144 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH449  Achillea millefolium John Hunter Thomas 1983-6-29 22701 San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Rattlesnake Rock 105 Comment
  CAS-BOT-BC21589  Achillea millefolium C. F. Leitholdt 1894-4-6 s.n. San Mateo New road to Black Mountain Comment
  JROH458  Achyrachaena mollis John H. Thomas 1961-4-8 9071 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH463  Achyrachaena mollis John H. Thomas 1971-4-10 15754 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH468  Achyrachaena mollis John Hunter Thomas 1981-4-30 20514 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  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
  JROH2059  Acmispon americanus var. americanus John H. Thomas 1974-10-26 17632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2097  Acmispon wrangelianus John H. Thomas 1968-5-3 14445 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD35770  Acmispon wrangelianus Beecher Crampton 1962-6-11 6491 San Mateo Pacifica, north city limits, along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  LA27800  Adenostoma fasciculatum L. S. Rose; 1941-6-12 41270 San Mateo Rocky ridges, Emerald lake, hills W. of Redwood City 120.0 Comment
  JROH3581  Adenostoma fasciculatum var. fasciculatum Gelsomina Smith 1951-6-5 122 San Mateo Jasper Ridge Biological Preserve, Stanford University 121 Comment
Read comments
Feb 26 2015
  JROH3589  Adenostoma fasciculatum var. fasciculatum John H. Thomas 1976-5-26 18150 San Mateo Jasper Ridge Biological Preserve, Stanford University 146 Comment
  POM263664  Adenostoma fasciculatum var. fasciculatum L. S. Rose 1941-6-12 41270 San Mateo Emerald Lake, hills west of Redwood City. 120 Comment
  JROH85  Adiantum aleuticum Lawrence J. Winship 1974-11-16 15 San Mateo Jasper Ridge Biological Preserve, Stanford University. Among wet rocks below Searsville dam. Comment
  UCSB18581  Adiantum jordanii Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 91 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
  CAS-BOT-BC202672  Aesculus californica Ned Cahill 1974-5-30 329 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Area next to Edgewood Road Comment
  JROH2707  Aesculus californica John H. Thomas 1971-5-30 15972 San Mateo Jasper Ridge Biological Preserve, Stanford University 120 Comment
  RSA131267  Aesculus californica Deborah Hichborn 1920-5-20 s.n. San Mateo San Francisquito Creek. Santa Cruz Mountain Peninsula. Comment
  UC615561  Aesculus californica Beryl O. Schreiber 1932-5-29 313 San Mateo near San Mateo Comment
  UCSB17806  Aesculus californica Schulte, John 1963-4-26 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and Santa Cruz Mountains 137 Comment
  SD41371  Agoseris apargioides Edith A. Purer 1933-8-25 5515 San Mateo Sand dunes, near Skyline Drive. Comment
  UC29397  Agoseris apargioides var. apargioides F. P. McLean 1873-6-1 San Mateo Searsville Comment
Read comments
Oct 8 2006
  SEINET196521 Image available Agoseris grandiflora W. A. Harvey, J. M. Tucker 1948-6-29 1707 San Mateo Portola State Park ; Road to Portola State Park just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC22978  Agoseris grandiflora var. grandiflora P. C. Wheeler 1966-4-24 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC46170  Agoseris heterophylla Ned Cahill 1974-5-18 295 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH490  Agoseris heterophylla John H. Thomas 1971-4-10 15758 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC46173  Agoseris heterophylla John H. Thomas 1971-5-2 15816 San Mateo Near intersection of Canada Road and Edgewater [sic]Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC22831  Agoseris heterophylla var. cryptopleura Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon. Comment
  CAS-BOT-BC15227  Agoseris hirsuta W. R. Dudley 1896-11-14 s.n. San Mateo Santa Cruz Mountain Peninsula, on dam Pelarcitos Creek Comment
  CAS-BOT-BC15234  Agoseris hirsuta W. R. Dudley 1894-5-14 s.n. San Mateo Fields southwest of Boulder Comment
  SEINET10661050  Agropyron repens P. Rubtzoff 1977-6-21 Rubtzoff 9055 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
  SEINET7295889 Image available Agrostis alba Malcolm A. Nobs, S. Galen Smith 1949-1 1550 San Mateo Marshes at Sharp Park Comment
  JROH4772  Agrostis avenacea John Hunter Thomas 1980-9-27 20197 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach area in weeds near water's edge 120 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
  JROH4778  Agrostis capillaris John Rawlings 2008-6-25 1044 San Mateo Jasper Ridge Biological Preserve, Stanford University; seven yards from paved road in middle of the blocked-off dirt path leading to Causeway Bridge 105 Comment
  CAS-BOT-BC127466  Agrostis densiflora John H. Thomas 1963-5-20 10153 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 miles northwest of Santa Cruz. Comment
  CAS-BOT-BC127378  Agrostis exarata Phillip C. Wheeler 1965-5-11 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine. Comment
  CAS-BOT-BC127381  Agrostis exarata Michener; Bioletti 1893-6-1 132 San Mateo South Pilarcitos. Comment
  JROH4787  Agrostis exarata John Rawlings 2007-5-18 1037 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1, uphill side of trail, east of first redwood grove. 118 Comment
  POM88024  Agrostis exarata Le Roy Abrams 1901-5-14 1640 San Mateo Stanford University, Jasper Ridge Comment
Read comments
Feb 18 2012
  SACT000091  Agrostis exarata S. Smith, Malcolm Nobs 1949-8-25 San Mateo Comment
  UC1100235  Agrostis exarata Malcolm A. Nobs, S. Galen Smith 1949-8-25 1562 San Mateo marshes at Sharp Park Comment
  CAS-BOT-BC138865  Agrostis microphylla Le Roy Abrams 1902-5-11 2458 San Mateo Crsystal Springs. Comment
  RSA119335  Agrostis microphylla S. S. Tillett, I. Sternback 1956-6-25 545 San Mateo On Middleton property S of road to Portola State Park, just before entrance; in secondary redwood forest. 396 Comment
  CAS-BOT-BC138953  Agrostis pallens Phillip Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Canyon east of quarry. Comment
  JROH4804  Agrostis stolonifera John Rawlings 2004-11-10 1001 San Mateo Jasper Ridge Biological Preserve, Stanford University. West end of Leonard's bridge, to right as one steps onto bridge, at base of bridge. 107 Comment
  UCD53588  Agrostis stolonifera Malcolm A. Nobs; S. Galen Smith 1949-8-25 1550 San Mateo Sharp Park. Comment
  UC1100115  Agrostis viridis Malcolm A. Nobs and S. Galen Smith 1949-8-26 1607 San Mateo about 1 mi s Pidgeon Point Comment
  JROH4831  Aira caryophyllea John Hunter Thomas 1985-5-22 23681 San Mateo Jasper Ridge Biological Preserve, Stanford University 91 Comment
  UCR124189  Aira caryophyllea George K. Helmkamp, E. A. Helmkamp 2001-6-2 6792 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
  SEINET10509644  Aira caryophyllea Adolph D. E. Elmer Elmer 4705 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC138239  Aira caryophyllea var. caryophyllea A. D. E. Elmer 1903-5-1 4705 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC445394  Alisma plantago-aquatica John Thomas Howell 1926-10-9 2219 San Mateo Near Lake San Andreas Comment
  JROH4298  Alisma triviale L. R. Abrams 1917-10-9 6865 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH4538  Allium amplectens H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4547  Allium amplectens Toni Corelli 2005-5-18 288 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 1 m west of Road F 174 Comment
  CAS-BOT-BC467293  Allium dichlamydeum Elizabeth McClintock 1965-5-23 s.n. San Mateo Among low shrubs on slope below and east of Nike Station, above April Brook. Comment
  CAS-BOT-BC467296  Allium dichlamydeum Ned Cahill 1974-5-13 245 San Mateo Chaparral near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC471100  Allium lacunosum var. lacunosum Lewis S. Rose 1931-5-15 s.n. San Mateo Emerald Lake, west of Redwood City Comment
  CDA2746  Allium neapolitanum J. E. McClellan, B. McClellan Apr 1972 San Mateo Bernal Avenue, Burlingame. 0 Comment
  CAS-BOT-BC472889  Allium paniculatum David Atkins 1951-11-10 s.n. San Mateo Pescadero Comment
  CDA928  Allium peninsulare D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .366 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  CAS-BOT-BC132028  Allium peninsulare var. franciscanum George Oberlander 1950-5-21 929 San Mateo Grassland, north of San Andreas Lake Comment
  RSA176772  Allium peninsulare var. franciscanum D. E. Breedlove 1963-5-13 4942 San Mateo SE corner of the jct. of Crystal Springs Road and Polhemus Road, west of San Mateo Comment
  JROH4563  Allium unifolium Toni Corelli 2011-5-3 368 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Trail 9 in serpentine swale 185 Comment
  POM281276  Alnus rhombifolia Lyman Benson 1929-2-18 946 San Mateo Bed of San Francisquito Creek at Stanford Convalescent Home. Comment
  LA206319  Alopecurus saccatus D. Keck; 1932-5-6 1472 San Mateo Burlingame, N city limits Comment
  JROH173  Amaranthus John H. Thomas 1976-10-16 18420 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fire place ruins downstream. Comment
  RSA22216  Amaranthus powellii J. T. Howell 1938-5-1 13772 San Mateo Colma Canyon Comment
  CHSC57078  Ambrosia chamissonis Steven Triano 1988-5-24 186 San Mateo Coastal sand dunes W of Hwy. 1 ca 0.2 mi N of Pescadero Road. 9 Comment
  RSA123305  Ambrosia chamissonis N. K. Carlson 1935-7-5 120 San Mateo [Unspecified] 0 Comment
  SEINET11855119  Ambrosia chamissonis E. H. Graham 1931-1 6941 San Mateo Ano Nuevo Pt. S of San Francisco Comment
  JROH3595  Amelanchier utahensis John H. Thomas 1980-5-6 19935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC136827  Amelanchier utahensis J. Ed. McClellan 1941-4-20 s.n. San Mateo Hills west of San Mateo 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
  CAS-BOT-BC214046  Amsinckia Mrs. E. C. Sutliffe 1933-5-25 s.n. San Mateo Purissima Canyon Comment
  JEPS26834  Amsinckia intermedia Rimo Bacigalupi with H. G. Baker and L. R. Heckard 1961-5-14 7697 San Mateo 3/4 mi below and se of Stone Dam Resevoir (in canyon of Pilarcitos Creek, w base of Cahill Ridge); Pilarcitos Creek 152 Comment
  UC1094083  Amsinckia intermedia Francia Chisaki 1953-6-6 567 San Mateo about 4 mi s of San Gregorio (on Hwy #1) Comment
  UCD78151  Amsinckia lunaris Robert E. Preston 2008-4-3 2603 San Mateo Near Lower Crystal Springs Reservoir, ca. 200 ft E of Sawyer Camp Trail, 0.5 mi NNE of its jct with Skyline Blvd 109 Comment
  JROH1348  Amsinckia menziesii H. J. Dengler 1972-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; above east margin of Searsville Lake by trail Comment
  JROH1355  Amsinckia menziesii John Hunter Thomas 1992-4-23 25162 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  RSA0091061  Amsinckia spectabilis John H. Thomas 1961-5-13 9337 San Mateo Franklin Point. Comment
  SEINET7062815  Amsinckia spectabilis A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach west of Pescadero. UTM Zone 10, 551765mE, 4121313mN. (WGS84/NAD83). 0 Comment
  JROH3373  Anagallis minima John H. Thomas 1973-4-14 16563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1125507  Anaphalis margaritacea T. Tyrrell 1928-9-26 10 San Mateo Pomponio Creek; Santa Cruz Quad. 91 Comment
  UCR254763  Anaphalis margaritacea Peter Rubtzoff 1978-9-16 9270 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC391917  Anemone grayi Le Roy Abrams 1902-3-16 2275 San Mateo King's Mountain Comment
  POM148966  Anemone grayi A. D. E. Elmer 1903-04 4844 San Mateo Kings Mtn. Comment
  POM151094  Anemone grayi C. F. Baker 1902-3-18 323 San Mateo King's Mountain. Comment
  CAS-BOT-BC221454  Angelica hendersonii James McMurphy 1909-10-8 s.n. San Mateo Arroyo de los Fryoles Comment
  UC913108  Anisocarpus madioides David D. Keck 1932-5-11 1497 San Mateo above Woodside (on La Honda road, e slope of Santa Cruz Mtns.); Santa Cruz Mtns. 228 Comment
  CAS-BOT-BC102289  Anthemis cotula Elizabeth McClintock; Carlyn Halde; Walter Knight 1963-6-23 s.n. San Mateo Lower part of Colma Canyon Comment
  CAS-BOT-BC102291  Anthemis cotula George Oberlander 1954-5-21 154 San Mateo Upper San Mateo Creek Comment
  CAS-BOT-BC102293  Anthemis cotula Ira L. Wiggins 1973-6-24 22021 San Mateo San Francisquito Creek, about 75 m above Pope Street bridge, along line between Santa Clara and San Mateo Counties Comment
  CAS-BOT-BC280647  Anthoxanthum occidentale L. R. A. 1902-1-7 2258 San Mateo Kings Mountain Comment
  CAS-BOT-BC280650  Anthoxanthum occidentale John H. Thomas 1968-12-18 14868 San Mateo Oakland YMCA Camp near Loma Mar, between Pescadero and La Honda Comment
  SEINET7614645 Image available Anthoxanthum occidentale C. F. Baker 1902-1 247 San Mateo W side King's Mountain Comment
  UCD85325  Anthoxanthum occidentale August L. Hormay 1932-3-6 s.n. San Mateo Pescadero Blumequist Mill - Redwood belt. Comment
  JROH202  Anthriscus caucalis John Hunter Thomas 1981-4-21 20456 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15411  Anthriscus caucalis Toni Corelli 2010-5-13 611 San Mateo Pedro Point Headlands, Pacifica CA; along Arroyo Trail 160 Comment
  JROH3604  Aphanes occidentalis John H. Thomas 1974-4-25 17216 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454476  Aphanes occidentalis John H. Thomas 1974-4-11 17125 San Mateo Serpentine area to the SE of Canada Road and Edgewood Road. NW of Woodside. 152 Comment
  CAS-BOT-BC454488  Aphanes occidentalis George Oberlander 1950-3-11 448 San Mateo Grassland, Sweeney Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC451568  Aponogeton distachyos M. P. Johnson 1967-2-18 10014 San Mateo On east side of State Highway 5, 4.6 miles south of southern boundary of San Francisco. Comment
  RSA195611  Aponogeton distachyos Peter H. Raven 1967-2-18 20829 San Mateo On east side of State Highway 5, 4.6 miles south of southern boundary of San Francisco. Comment
  CAS-BOT-BC435124  Aptenia cordifolia J. H. Thomas 1964-4-30 10336 San Mateo Near intersection of El Camino Real and F St., Colma. Comment
  UC463319  Aquilegia eximia W. R. Dudley 1902-9-21 San Mateo sw Crystal Springs Lake; Santa Cruz Peninsula Comment
  UCSB18280  Aquilegia eximia Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 60 Comment
  CAS-BOT-BC405899  Aquilegia formosa Phillip Wheeler 1965-3-28 s.n. San Mateo Columbine Gulch Comment
  RSA51241  Aquilegia formosa var. truncata Peter H. Raven 1950-4-16 s.n. San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  CAS-BOT-BC17316  Arabis blepharophylla Elizabeth McClintock 1967-4-16 s.n. San Mateo San Bruno Mountains. Buckeye Canyon. Comment
  UC311117  Arabis blepharophylla A. D. E. Elmer Apr 1903 4936 San Mateo San Bruno Hills Comment
  UC967208  Arabis blepharophylla L. Constance, R. Bacigalupi, and C. R. Bell 1951-3-25 3369 San Mateo se side Colma Canyon 60 Comment
  RSA0125532  Arabis blepharophylla R. C. Rollins 1941-3-22 2950 San Mateo San Bruno Hills, 2 miles southeast of Daly City Comment
  RSA0125533  Arabis blepharophylla D. W. Taylor 1988-3-30 9477 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain. 237 Comment
  SEINET11989202  Arabis blepharophylla E. McClintock, Knight, W.; Knight, I. 1982-1 4640 San Mateo Kamchatka Point, San Bruno Mountains Comment
  UC1300998  Arabis glabra Helen K. Sharsmith 1963-2-16 5142 San Mateo above Daly City (lower slopes of San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  RSA112474  Aralia californica Theo C. Zschokke 1903-7-10 s.n. San Mateo Goat Ranch Road, Corte de Madera Cr. Comment
  CAS-BOT-BC128627  Arbutus menziesii Josephine D. Randall 1907-4-27 136 San Mateo King's Mt. Road - Santa Cruz Peninsula Comment
  JROH1921  Arbutus menziesii J. H. Thomas 1977-4-29 18578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1945  Arctostaphylos Carol Zabel, Ann, Lambrecht, Toni Corelli 2004-3-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on trail to Hermit's Mine site 191 Comment
  UC1212008  Arctostaphylos James Roof 1961-4-18 San Mateo mt. spur 1/4 mi ne summit; San Bruno Mountain 335 Comment
  CAS-BOT-BC24128  Arctostaphylos andersonii J. H. Thomas 1954-2-13 3686 San Mateo Along Skyline Highway between Kings Mt. Road and La. Honda Road. 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
  SEINET11989210  Arctostaphylos andersonii E. McClintock, Knight, W.; Knight, I. 1982-1 4632 San Mateo San Pedro County Park, near Pacifica Comment
  CAS-BOT-BC23545  Arctostaphylos crustacea Mrs. S. G. Suttiffe 1933-4-5 s.n. San Mateo Las Lunitas Canyon, King Mt. Comment
  JROH1929  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-4-29 15612 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC24731  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4417 San Mateo San Bruno Mtn. Buckeye Canyon on Oak Ridge. 137 Comment
  CAS-BOT-BC24491  Arctostaphylos imbricata Arthur L. Menzies 1963-3-10 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC24499  Arctostaphylos imbricata B. A. Stein 1981-3-1 442 San Mateo San Bruno Mt., ne. summit ridge along Radio Rd. 396 Comment
  CHSC39432  Arctostaphylos imbricata B. A. Stein 1981-3-1 442 San Mateo San Bruno Mt., northeast summit ridge just below Radio Rd. 396 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
  CAS-BOT-BC39819  Arctostaphylos pacifica Arthur Menzies; Elizabeth McClintock 1963-2-16 s.n. San Mateo San Bruno Mountain - slope southeast of parking lot just below top of mountain. Comment
  POM222789  Arctostaphylos regismontana S. S. Berry 1909-3-13 s.n. San Mateo King's Mt. Road. 548 Comment
  POM367228  Arctostaphylos regismontana L. S. Rose 1938-2-23 38083 San Mateo Kings Mountain. 640 Comment
  UCD53804  Arctostaphylos regismontana Roman Gankin 1966-5-17 740 A San Mateo Montara Mountain. Comment
  CAS-BOT-BC44710  Arctostaphylos regismontana Walter Knight; Irja Knight; Jacob Sigg; Elizabeth McClintock 1981-2-25 4170 San Mateo From Strybing Arboretum, Golden Gate Park, San Francisco, #63-1 vea Univ. of Calif. botanic garden, 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
  CDA34054  Arctostaphylos sensitiva D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .155 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  RSA381043  Arctostaphylos tomentosa subsp. crustacea Roman Gankin 1959-2-22 322 San Mateo 2.8 miles from junction state hwy 5 on King's Mt. Road. Comment
  RSA44374  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1949-3-18 49006 San Mateo Hills west of Belmont. 91 Comment
  RSA636846  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24642 San Mateo NW side of Montara Mtn. 150 Comment
  CAS-BOT-BC46825  Arctostaphylos uva-ursi Arthur L. Menzies 1963-3-10 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC46838  Arctostaphylos uva-ursi Arthur Menzies 1962-2-25 s.n. San Mateo San Bruno Mt. Comment
  UCD51959  Arctostaphylos uva-ursi Robert F. Thorne; Percy C. Everett 1963-6-9 32241 San Mateo Mound-shaped shrub to 1/2 meter, in north coastal scrub on top of San Bruno Mt. near TV tower Comment
  UCD52147  Arctostaphylos uva-ursi Walter and Irja Knight; Elizabeth McClintock 1982-3-27 4495 San Mateo From Kamchatka Point, San Bruno Mountain, San Mateo County. 320 Comment
  POM204327  Armeria maritima subsp. californica I. L. Wiggins 1929-7-4 3801 San Mateo Pescadero Beach Comment
  JROH514  Artemisia californica L. R. Abrams 1902-12-23 3098 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH517  Artemisia californica John H. Thomas 1978-9-24 19335 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11836170  Artemisia californica L. S. Rose 1936-1 36716 San Mateo Granada 30 Comment
  UC1537053  Artemisia douglasiana Gordon H. True Jr. 1937-7-23 803 San Mateo along Salada Beach-Skyline Blvd. 60 Comment
  UC892419  Artemisia douglasiana Lewis S. Rose 1938-8-18 38232 San Mateo San Mateo 30 Comment
  UC943016  Artemisia douglasiana Lewis S. Rose 1940-8-10 49155 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC93934  Artemisia douglasiana Josephine D. Randall 1907-6-29 53 San Mateo Santa Cruz Peninsula, Portola Road Comment
  CAS-BOT-BC93936  Artemisia douglasiana Ira L. Wiggins 1975-8-5 22175 San Mateo Bed of San Francisquito Creek, ca 100 m above Pope Street bridge, San Mateao County side of Santa Clara-San Mateo Comment
  RSA17886  Artemisia pycnocephala C. B. Wolf 1927-6-29 s.n. San Mateo Lake Lucerne' S. of Pescadero Comment
  UC484308  Artemisia pycnocephala C. B. Wolf 1930-11-5 1806 San Mateo along coastal bluffs s of Pescadero 7 Comment
  JROH429  Asclepias fascicularis John H. Thomas 1973-6-10 16826 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
  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
  RSA417642  Aster chilensis Edith A. Purer 1933-8-25 5521 San Mateo Spring Valley. Comment
  POM87776  Aster radulinus L. R. Abrams 1902-9-28 3004 San Mateo New Grade Road- Portola Comment
  CAS-BOT-BC478066  Asteraceae Peter H. Raven 1957-9-1 11302 San Mateo Along Skyline Blvd. at Woodside Road Comment
  CAS-BOT-BC186753  Astragalus gambelianus Lois E. James 1946-4-16 1741 San Mateo Back of Redwood City. High Road off Woodside Road Comment
  CAS-BOT-BC186756  Astragalus gambelianus George Oberlander 1950-4-22 786 San Mateo San Andreas Valley Comment
  CAS-BOT-BC186767  Astragalus gambelianus James McMurphy 1906-5-8 s.n. San Mateo Head of Crystal Springs Lake Comment
  JROH1993  Astragalus gambelianus John Hunter Thomas 1981-4-23 20480 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET948341  Astragalus gambelianus Lois E. James 1946-1 1741 San Mateo Serpentine hills back of redwood city. High Road off Woodside Road. Comment
  UC903405  Astragalus gambelianus Lois E. James 1946-4-16 1741 San Mateo High Road off Woodside Road hills back Redwood City; back of Redwood City Comment
  CAS-BOT-BC186751  Astragalus gambelianus W. R. Dudley 1894-4-21 s.n. San Mateo Below Crystal Springs Dam Comment
  RSA60159  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo Hills back of Redwood City. Comment
  CAS-BOT-BC194430  Astragalus nuttallii var. virgatus Copeland 1905-6-3 3299 San Mateo Montara Pt. Comment
  POM16314  Astragalus nuttallii var. virgatus Copeland 1905-6-3 3299 San Mateo Montara Point. Comment
  JEPS15533  Astragalus pycnostachyus G. Thomas Robbins 1956-8-18 3737 San Mateo on slope above Pomponio Creek at its mouth at the Pacific Ocean; on slope above Pomponio Creek Comment
  RSA785883  Athyrium filix-femina subsp. cyclosorum Peter Rubtzoff 1977-11-24 9144 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  UC219429  Atriplex californica H. M. Hall 1922-5-17 11805 San Mateo Point Montara Point Montara (in packed sand just above high tide) Comment
  UCD97426  Atriplex hortensis Malcolm A. Nobs; S. Galen Smith 1949-8-27 1619 San Mateo E of Redwood City. Comment
  UC205348  Atriplex leucophylla Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  UC583161  Atriplex leucophylla Lewis S. Rose 1936-8-16 36713 San Mateo Granada Granada (Sea Beaches) 3 Comment
  JEPS109218  Atriplex triangularis D. W. Taylor 2005-9-26 19492 San Mateo 1 mile S along coast from Franklin Point, Ano Nuevo State Reserve. Comment
  JROH4839  Avena barbata John H. Thomas 1967-3-26 12420 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC68375  Azolla filiculoides George Oberlander 1951-3-30 1174 San Mateo San Francisco Watershed Reserve, San Mateo Creek Comment
  UC42329  Azolla filiculoides F. T. Bioletti 1893-6-15 San Mateo Boden Comment
  CAS-BOT-BC98692  Baccharis douglasii Le Roy Abrams 1901-9-1 2225 San Mateo Menlo Park Comment
  POM289916  Baccharis douglasii Lyman Benson 1937-7-25 8471 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  SEINET946129  Baccharis douglasii L. S. Rose 1946-1 46220 San Mateo Searsville Lake 69 Comment
  JROH544  Baccharis glutinosa John Hunter Thomas 1988-10-17 24593 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  CAS-BOT-BC99505  Baccharis pilularis Elizabeth McClintock 1965-3-28 s.n. San Mateo North Power Line Ridge, San Bruno Mountain Comment
  POM222816  Baccharis pilularis S. S. Berry, K. L. Dole 1909-4-3 s.n. San Mateo Bear Creek Canyon Road 427 Comment
  RSA40138  Baccharis pilularis L. S. Rose 1948-11-25 48240 San Mateo San Mateo County, Kings Mtn. 549 Comment
  JROH552  Baccharis pilularis subsp. consanguinea John H. Thomas 1978-9-24 19336 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC16631  Barbarea orthoceras Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. Between April Brook and Radio Road. Comment
  CAS-BOT-BC16642  Barbarea orthoceras W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. Near head of San Andreas Lake. Comment
  JEPS90454  Barbarea orthoceras Dean W. Taylor 1992-3-19 12336 San Mateo Montara Mt. in saddle just e. San Pedro Mt. (reached via old paved rd. from San Pedro Valley, along ridge at BM 924); Santa Cruz Mts., Montara Mt. 7 1/2 Quad. (1980) 274 Comment
  JROH1450  Barbarea orthoceras John Hunter Thomas 1982-7-8 21078 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  UC10249  Barbarea orthoceras J. Burtt Davy June 21-23, 1893 1147 San Mateo Pilarcitos Lake and Canon Comment
  UCD165020  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7961 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SD99578  Barbarea orthoceras Darley F. Howe 1968-4-14 San Mateo San Francisco Game Reserve near San Bruno. Comment
  JROH3916  Bellardia trixago John H. Thomas 1975-6-5 17930 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lowflow crossing Comment
  CAS-BOT-BC100192  Bellis perennis Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC75864  Berberis pinnata Walter Knight; Walter Knight 1963-6-24 982 San Mateo San Bruno Mountains. Quarry 4. Comment
  CAS-BOT-BC75875  Berberis pinnata A. D. E. Elmer 1903-4-1 4820 San Mateo San Bruno Hills. Comment
  JEPS121478  Berberis pinnata subsp. pinnata Adam C. Schneider with C. Matt Guilliams 2013-3-9 38 San Mateo Crystal Springs Reservoir Comment
  UC1191932  Berula erecta Malcolm A. Nobs, S. Galen Smith 1949-8-25 1561 San Mateo at Sharp Park Sharp Park Comment
  RSA140621  Beta vulgaris John H. Thomas 1960-6-25 8796 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. alt. below 25 feet. 8 Comment
  UC1191357  Beta vulgaris Malcolm A. Nobs and S. Galen Smith 1949-8-27 1620 San Mateo salt marshes e Redwood City; salt marshes e of Redwood City Comment
  POM32550  Boisduvalia densiflora var. densiflora A. D. E. Elmer 1903-06 4273 San Mateo Crystal Springs Lake. Comment
  RSA465634  Boisduvalia stricta E. S. Spalding 1923-8-3 s.n. San Mateo Pulgas Tunnel, east side. Comment
  SJSU15760  Bolboschoenus maritimus subsp. paludosus Toni Corelli 2009-9-22 430 San Mateo Pomponio State Beach west of Hwy. 1 4 Comment
  CAS-BOT-BC95347  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo La Honda Comment
  CAS-BOT-BC95340  Bowlesia incana Miss E. Cannon 1898-3-26 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC95343  Bowlesia incana Walter Knight; Irja Knight 1965-3-28 1107 San Mateo Trillium Gulch, San Bruno Mountain Comment
  CAS-BOT-BC389695  Boykinia occidentalis Mary K. Wicksten 1975-6-14 118 San Mateo Memorial Park Comment
  CAS-BOT-BC145403  Brachypodium distachyon Bonnie McClellan; J. Ed. McClellan 1971-5-31 s.n. San Mateo Butano State Park. Comment
  CAS-BOT-BC145406  Brachypodium distachyon Peter H. Raven 1957-6-30 11015 San Mateo 1.8 mile east of Pescadero on road to La Honda. Comment
  CDA17126  Brachypodium sylvaticum K. Melo 2003-12-1 PDR 1387956 San Mateo San Francisco Peninsula; Hwy 84 at Grandview Terrace and Schilling Lake. Martin Creek drainage. 0 Comment
  CDA31372  Brachypodium sylvaticum Robin Breckenridge, K. Filippini 2010-2-17 PDR# 1463751 San Mateo Woodside: 1 Echo Lane. 0 Comment
  CAS-BOT-BC28047  Brassica fruticulosa Elizabeth McClintock; Paul Reeberg 1989-2-4 s.n. San Mateo San Bruno Mountains. Near horse corral, off Bayshore. Comment
  JEPS26851  Brassica nigra Rimo Bacigalupi with J. H. Thomas and L. R. Heckard 1961-5-23 7714 San Mateo along Alpine Road near site of abandoned Alpine School Alpine School; Alpine Road 487 Comment
Read comments
Mar 12 2009
  CAS-BOT-BC36666  Brassica oleracea John H. Thomas 1955-11-9 5506 San Mateo Near Sanchez Adobe House, San Pedro Valley, about 8.5 miles south of San Francisco - San Mateo County line. Comment
  CAS-BOT-BC36792  Brassica rapa J. H. Thomas 1949-10-16 1143 San Mateo Just north of outlet of San Gregorio Creek. Comment
  JROH1465  Brassica rapa John H. Thomas 1977-2-17 18464 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Whiskey Hill and Sand Hill Roads Comment
  CAS-BOT-BC145494  Briza maxima Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point. Comment
  UCD57153  Briza maxima Anonymous 1991-5-27 24 San Mateo Along Lake Merced, in Daly City. Comment
  CAS-BOT-BC145324  Briza minor W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Mountain Peninsula. North of Triples Store. Comment
  CAS-BOT-BC145332  Briza minor John H. Thomas 1950-4-27 1692 A San Mateo King's Mountain Road. Comment
  JROH4880  Briza minor John H. Thomas 1963-5-15 10090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204993  Briza minor E. B. Copeland 1903-5-24 3257 San Mateo Along Crystal Springs Lake Comment
  RSA623794  Briza minor Ralph Hopping 1929-4-27 107 San Mateo Jasper Ridge. Stanford Campus. Comment
  UCD57401  Briza minor Beecher Crampton 1962-6-11 6501 San Mateo Sharp Park. Suburb of Pacifica. Mori's Point Road, just west of State Hwy. 1. Comment
  UCR101608  Briza minor George K. Helmkamp, E. A. Helmkamp 1998-5-16 3747 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  UCR122969  Briza minor George K. Helmkamp, E. A. Helmkamp 2001-6-2 6791 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
  SEINET12059400  Brodiaea californica subsp. leptandra M. T. Doutt 1931-5-4 411 San Mateo Skyline Blvd., W of Hillbrae Comment
  SEINET182863  Brodiaea capitata John Campbell 1925-3-27 San Mateo Burlingame Comment
  JROH4582  Brodiaea elegans subsp. elegans John H. Thomas 1976-5-26 18157 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA140610  Brodiaea elegans subsp. elegans John H. Thomas 1960-6-8 8774 A San Mateo Between Stanford and Searsville along San Hill Road. Comment
  JROH4586  Brodiaea terrestris subsp. terrestris Elmer I. Applegate 1895-5-11 700 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4588  Brodiaea terrestris subsp. terrestris John H. Thomas 1956-4-7 5624 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  CAS-BOT-BC483174  Brodiaea terrestris subsp. terrestris R. E. Frenkel 1964-5-22 506 San Mateo On Whiting Ridge Fire Tr. Road, SFWD, 0.2 mile north-west of Spring Valley Ridge road 329 Comment
  CAS-BOT-BC183618  Bromus carinatus Peter Rubtzoff 1978-4-2 9152 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC148979  Bromus carinatus var. carinatus J. H. Thomas 1954-4-3 3837 San Mateo Pilarcitos Creek Road, 3.5 miles northeast of Halfmoon Bay. 121 Comment
  CAS-BOT-BC148984  Bromus carinatus var. carinatus Ira L. Wiggins 1928-4-22 2946 San Mateo Moss Beach. Comment
  CAS-BOT-BC148997  Bromus carinatus var. carinatus Lewis S. Rose 1956-7-2 56115 San Mateo Skyline Boulevard. Hills west of San Mateo. 182 Comment
  JROH5798  Bromus carinatus var. carinatus John Rawlings 2016-4-19 1724 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. 106 Comment
  CAS-BOT-BC148769  Bromus carinatus var. marginatus Elizabeth McClintock; Paul Reeberg 1989-5-23 s.n. San Mateo San Bruno Mountains. In valley west of Guadlupe Hills. 76 Comment
  RSA120971  Bromus catharticus J. T. Howell 1956-5-23 31446 San Mateo Roadside, El Camino Real at Atherton Ave., Menlo Park. Comment
  JROH4908  Bromus catharticus var. catharticus Ann Lambrecht 2006-8-23 28 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry streambed below Dennis Martin marker Comment
  JROH4910  Bromus diandrus W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 Comment
  CAS-BOT-BC155132  Bromus hordeaceus H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Just east of Jasper on south side of Woodside. Comment
  JROH4923  Bromus hordeaceus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4935  Bromus laevipes John Hunter Thomas 1983-6-29 22711 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC162310  Bromus madritensis John H. Thomas 1961-5-14 9384 A San Mateo Just north of dam on San Mateo Creek. 121 Comment
  JROH5718  Bromus madritensis subsp. madritensis John Rawlings 2015-4-26 1649 San Mateo Jasper Ridge Biological Preserve, Stanford University; near cistern at west side of Field Station. 1120 Comment
  JROH4957  Bromus madritensis subsp. rubens John Rawlings 2013-4-30 1181 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Road B near north boundary fence. 78 Comment
  CAS-BOT-BC162227  Bromus maritimus John H. Thomas 1963-7-19 10196 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles northwest of Santa Cruz. Comment
  UC144260  Cakile edentula Copeland 1903-6-5 3319 San Mateo Montara Point; Pacific Coast, Montara Point Comment
  CAS-BOT-BC36869  Cakile edentula var. edentula Helen D. Geis 1901-10-26 s.n. San Mateo Half Moon Bay. Comment
  UC964761  Cakile maritima Herbert L. Mason 1944-3-17 San Mateo Moss Beach Comment
  UC984909  Cakile maritima Ira L. Wiggins 1949-7-2 12196 San Mateo Pescadero Beach Comment
  UCSC004915  Cakile maritima Monica Larenas 1985-6-1 19 San Mateo Hwy 1, 0.5 mi S of Pescadero State Beach Comment
  CAS-BOT-BC36955  Cakile maritima var. maritima Reed Clark Rollins 1941-7-19 2962 San Mateo Half Moon Bay, along the beach. Comment
  CAS-BOT-BC36962  Cakile maritima var. maritima Daniel Cohen 1953-5-9 94 San Mateo Near mouth of Pescadero Creek. Comment
  UC203510  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5040 San Mateo San Pedro Comment
  CAS-BOT-BC389754  Calandrinia ciliata J. Nieri 1953-2-21 s.n. San Mateo Hetch Hetchy Reservoir, Redwood City Comment
  JROH1642  Callitriche marginata Paul Heiple 2010-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along side of Rd E Comment
  CAS-BOT-BC85765  Calocedrus decurrens George Oberlander 1949-9-25 397 San Mateo San Francisco Watershed Reserve - Valley between Fiefield and Sawyer Ridges Comment
Read comments
Aug 28 2018
  JROH4605  Calochortus albus John H. Thomas 1976-5-26 18152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA10360  Calochortus albus H. A. Barker 1926-5-1 592 San Mateo Kings Mt. Comment
  CAS-BOT-BC492212  Calochortus albus Ned Cahill 1974-5-13 270 San Mateo Chaparral near the intersection of Canda and Edgewood rods, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC492221  Calochortus albus Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City - Hills - near Hesler farm entrance Comment
  CAS-BOT-BC492223  Calochortus albus Elsie Zeile 1909-5-20 s.n. San Mateo Burlingame Comment
  JROH4614  Calochortus argillosus James McMurphy 1909-6-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS127872  Calochortus luteus Adam C. Schneider 2013-5-17 159 San Mateo Crystal Springs Reservoir Comment
  JROH4632  Calochortus luteus D. E. Breedlove 1971-5-31 19357 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH4636  Calochortus luteus John H. Thomas 1976-5-26 18154 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389720  Calochortus luteus M. K. Wicksten 1970-6-16 39 San Mateo San Mateo Comment
  RSA6293  Calochortus tolmiei D. D. Keck 1932-5-11 1496 San Mateo Above Woodside on La Honda Road, east slope of Santa Cruz Mountains Comment
  RSA18382  Calochortus venustus Carl B. Wolf 1927-7-1 526 San Mateo Above Emerald Lake, back of Redwood City Comment
  CAS-BOT-BC494045  Calochortus venustus Cherie Wetzel 1969-6-20 860 San Mateo Serpentine near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  JEPS22891  Calycadenia multiglandulosa John H. Thomas 1958-11-22 7506 San Mateo about 5 mi sw of Palo Alto (Jasper Ridge); Jasper Ridge 152 Comment
  SJSU8768  Calystegia purpurata L. J. Hoffman 1966-4-6 130 San Mateo San Bruno Mt off Crocker Ave, Daly City Comment
  CAS-BOT-BC224652  Calystegia purpurata subsp. purpurata Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC224665  Calystegia purpurata subsp. purpurata Theo. C. Zschokke 1903-7-10 s.n. San Mateo Goat Ranch Road, Corte de [Corte] Madera Creek Comment
  CAS-BOT-BC224670  Calystegia purpurata subsp. purpurata Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain Comment
  JROH1841  Calystegia purpurata subsp. purpurata John H. Thomas 1968-5-22 14457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS112711  Calystegia subacaulis Dean W. Taylor 1994-5-10 14267 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  CAS-BOT-BC224349  Calystegia subacaulis subsp. subacaulis A. D. E. Elmer 1903-6-1 4826 San Mateo Crystal Springs Lake Comment
  NY679557  Camissonia cheiranthifolia subsp. cheiranthifolia A. D. E. Elmer 03 1903 4942 San Mateo San Pedro. 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
  HSC16509  Camissonia ovata R. S. White 1965-4-19 42 San Mateo 4 mi. W of the Standford Golf Course on Sand Hill Rd. Comment
  RSA125833  Camissonia ovata G. R. Campbell 1956-4-4 3 San Mateo La Honda Rd (from Hwy 5) to Woodside, 3 mi from Mt Home-Portola road. 610 Comment
  CAS-BOT-BC160330  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Robert Robertson 1954-5-1 130 San Mateo Near San Gregorio Creek 6 Comment
  SD38657  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1934-8-14 5916 San Mateo Half Moon Bay. Comment
  POM60089  Campanula prenanthoides A. D. E. Elmer 1903-06 4283 San Mateo Pescadero Creek Comment
  POM209849  Campanula prenanthoides D. D. Keck 1934-7-7 2929 San Mateo Kings Mountain, west of summit 610 Comment
  CAS-BOT-BC37162  Capsella bursa-pastoris David D. Keck 1932-2-16 1378 San Mateo Portola. Comment
  JROH1474  Capsella bursa-pastoris John Hunter Thomas 1978-5-9 19196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187412  Capsella bursa-pastoris John H. Thomas 1965-4-29 10601 San Mateo San Bruno Mountain in northern part of county. 305 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-BC37672  Cardamine californica J. H. Thomas 1949-4-1 211 San Mateo West of Redwood City. Comment
  CAS-BOT-BC37985  Cardamine oligosperma John H. Thomas 1961-5-14 9372 San Mateo San Francisco Watershed Reserve. Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. 152 Comment
  CAS-BOT-BC384842  Cardionema ramosissimum Walter Knight; Irja Knight 1965-4-20 1082 San Mateo San Bruno Mountain. Pig Ranch Ravine 45 Comment
  JROH579  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1980-5-8 19952 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM290232  Carex Lyman Benson 1930-5-1 2065 San Mateo Stanford University. 91 Comment
  NY25691  Carex amplifolia L. Abrams 1915-6-14 5563 San Mateo King's Mountain Road Comment
  CAS-BOT-BC19319  Carex barbarae W. R. Dudley 1896-4-18 s.n. San Mateo The Santa Cruz Mountain Peninsula. Pescadero. Pebbel Beach Pasture. Comment
  JROH4314  Carex barbarae John H. Thomas 1974-5-19 17384 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15909  Carex barbarae John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1734 San Mateo Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC19325  Carex barbarae Walter Knight; Irja Knight 1965-4-15 s.n. San Mateo San Bruno Mountain. Mouth of Colma Canyon. Comment
  SEINET7364526 Image available Carex bolanderi L. S. Rose 1933-6-23 33253 San Mateo Kings Mountain Comment
  CAS-BOT-BC34071  Carex brevicaulis W. R. Dudley 1900-3-17 s.n. San Mateo The Santa Cruz Mountain Peninsula. Field north of Seal Cove. Comment
  CAS-BOT-BC18941  Carex densa W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Summit Springs, near King's Mountain. Comment
  RSA304146  Carex densa J. T. Howell 1938-5-1 13785 San Mateo Near South San Francisco. Comment
  RSA91590  Carex densa J. T. Howell 1938-5-1 13786 San Mateo Near South San Francisco. Comment
  JROH4338  Carex globosa John Hunter Thomas 1983-4-5 21317 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy draw along path to redwood area. Comment
  CAS-BOT-BC21811  Carex harfordii Lewis S. Rose 1935-5-29 35194 San Mateo Kings Mountain. Comment
  SBBG29952  Carex harfordii J. T. Howell 1938-5-1 13781 San Mateo near South San Francisco Comment
  CAS-BOT-BC21808  Carex harfordii Elizabeth McClintock; Paul Reeberg 1989-5-2 s.n. San Mateo Lower Owl Canyon. 45 Comment
  POM248613  Carex harfordii J. T. Howell 1938-5-1 13781 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC119349  Carex obnupta Peter Rubtzoff 1953-5-14 1348 San Mateo Pilareitos Creek canyon, 1 to 2 mi downstream from Pilareitos Lake. 609 Comment
  CAS-BOT-BC117647  Carex serratodens Harry A. Dutton 1900-4-3 s.n. San Mateo Woodside. Comment
  CAS-BOT-BC117648  Carex serratodens W. R. Dudley 1909-4-27 s.n. San Mateo Whipple Road between Woodside and Crystal Spr. Lake Comment
  CAS-BOT-BC117650  Carex serratodens Lewis Samuel Rose 1936-5-28 36304 San Mateo Emerald L., W of Redwood City. Comment
  CAS-BOT-BC117651  Carex serratodens Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside. Comment
  CAS-BOT-BC117653  Carex serratodens Cherie L. Wetzel 1969-6-20 883 San Mateo Near Canada College, Redwood City, just off Farm Hill Blvd. Comment
  SEINET7575205 Image available Carex serratodens Wilhelm Suksdorf 1913-6-22 248 San Mateo Crystal Springs Lake. Comment
  SEINET7575213 Image available Carex serratodens Wilhelm Suksdorf 1913-6-23 252 San Mateo Brooklet east of Crystal Springs Lake. Comment
  CAS-BOT-BC173826  Carex subbracteata Peter Rubtzoff; Roman Gankin 1975-5-21 7975 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UC1159367  Carex subbracteata J. H. Thomas 1959-4-4 7657 San Mateo about 0.7 mi s Gazos Creek (about 6.5 mi s from Pescadero) 45 Comment
  UCR280162  Carex subbracteata Peter Rubtzoff 1976-6-30 8707 San Mateo Central Coast, San Bruno Mountains. 'Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence 220 Comment
  RSA88836  Carex subbracteata J. T. Howell 1938-5-1 13783 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC116818  Carex subbracteata var. subbracteata John Thomas Howell 1938-5-1 13779 San Mateo Near South San Francisco Comment
  CAS-BOT-BC116825  Carex subbracteata var. subbracteata George Thomas Oberlander 1950-4-22 633 San Mateo Marsh, Pilarcitos Canyon Comment
  CAS-BOT-BC230109  Carpobrotus chilensis Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano Nuevo Island Comment
  SD40038  Carpobrotus chilensis Edith A. Purer 1933-7-27 5393 San Mateo Pigeon Point, two miles south Comment
  CHSC20700  Carpobrotus edulis Robert A. Schlising 1963-2-23 2433 San Mateo 21 miles north of Davenport along Highway 1. Comment
  JROH5852  Castilleja John H. Thomas 1978-4-20 19090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC57513  Castilleja affinis Sandy Trimble 1987-4-13 1 San Mateo On the e slope of Hwy 84, 6.7 mi w of Hwy 1 and 8.6 mi e of Hwy 35. 274 Comment
  POM15460  Castilleja affinis C. F. Baker 1902-5-1 777 San Mateo Crystal Springs Lake. Comment
  POM15472  Castilleja affinis C. F. Baker 1903-4-6 1877 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  OBI59410  Castilleja affinis Rimo Bacigalupi, J. R. Sweeney, Cliff Fenneman and George Bacigalupi, Jr 1954-8-3 4733 San Mateo Extreme NW San Mateo County. Hgts above Thornton Beach close to State Hwy 1 55 Comment
  RSA15303  Castilleja affinis Carl B. Wolf 1927-4-3 273 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  RSA516625  Castilleja affinis R. C. Bacigalupi, J. R. Sweeney, G. Bacigalupi, Cliff Fenneman 1954-8-3 4733 San Mateo Heights above Thornton Beach close to State Highway No. 1. 55 Comment
  SEINET12288583  Castilleja affinis Unknown 1932-1 8976 San Mateo Gov. Rolph Estate Comment
  SEINET5542520  Castilleja affinis H. S. Gentry 1931-1 99 San Mateo 1 mile SE of Holy Cross Cemetery. Comment
  JEPS15586  Castilleja affinis subsp. affinis G. Thomas Robbins 1956-8-18 3740 San Mateo immediately n mouth of Butano Creek (nw of Pescadero) Comment
Read comments
Feb 28 2011
  JEPS60420  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1969-6-21 6661 San Mateo about 2 mi s Half Moon Bay road junction with Skyline Boulevard Comment
  JROH3934  Castilleja affinis subsp. affinis Joseph J. Schweitzer 1951-4-21 36 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH3953  Castilleja affinis subsp. affinis John Rawlings 2013-4-23 1172 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from Trail c. 180 Comment
  UC444883  Castilleja affinis subsp. affinis R. L. Pendleton 1907-4-2 550 San Mateo w of Los Gatos 243 Comment
  UCSC007730  Castilleja affinis subsp. affinis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SJSU16024  Castilleja ambigua subsp. ambigua John Rawlings, Toni Corelli 2016-5-13 1791 San Mateo Vallemar Bluff, Moss Beach. USGS Montara Mountain OE W 7.5 Minute (1:24,000 Scale) Topographic Map. 11 Comment
  UC103163  Castilleja ambigua subsp. ambigua Katharine Brandegee 1905-6-20 San Mateo near Half Moon Bay; Moss Beach Comment
  JROH3984  Castilleja densiflora subsp. densiflora John Hunter Thomas 1983-4-3 21308 San Mateo Jasper Ridge Biological Preserve, Stanford University; along beach near Searsville Lab Comment
  SEINET13772767  Castilleja exserta A. A. Heller 1906-1 8381 San Mateo Near Ocean View, San Francisco. Comment
  UC103182  Castilleja exserta subsp. latifolia Katharine Brandegee Jun 1905 San Mateo Half Moon Bay Comment
  NY68073  Castilleja franciscana F. W. Pennell 1940-5-15 25420 San Mateo E of upper Crystal Springs Lake, SW of San Mateo. 61.0 Comment
  CAS-BOT-BC243839  Castilleja latifolia John Thomas Howell 1933-4-9 10964 San Mateo Granada Comment
  JEPS103889  Castilleja latifolia T. I. Chuang and F. M. Chuang 1991-6-29 7852 San Mateo Just south of Pescadero State Beach, on highway 1 Comment
  JROH3996  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1969-5-28 15092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC185345  Castilleja rubicundula subsp. lithospermoides Katharine Brandegee May 1905 San Mateo San Mateo Comment
  SD37772  Castilleja rubicundula subsp. lithospermoides Marie Cummings 1933-5-23 3712 San Mateo Spring Valley Lakes Comment
  CDA41393  Castilleja subinclusa subsp. franciscana T. I. & F. M. Chuang 1991-7-1 7848 San Mateo 0.8 mile north of San Gregorio Beach. 0 Comment
  JEPS88801  Castilleja subinclusa subsp. franciscana T. I. and F. M. Chuang 1991-7-3 7859 San Mateo 0.8 mi sw Interstate 280 junction with Route 92 (on Route 92) Comment
  SJSU11466  Castilleja subinclusa subsp. franciscana R. D. Hennessey 1964-4-26 San Mateo near outlet Pilarcitos Cr into ocean Comment
  SJSU5850  Castilleja subinclusa subsp. franciscana R. E. Gill 1970-4-16 San Mateo La Honda Rd c. 4 mi E of junction with Skyline Blvd Comment
  JEPS30402  Castilleja wightii James B. Roof, Irja Knight 1963-4-24 San Mateo slopes above Colma Canyon (nw end of San Bruno Mountain (in Daly City)); San Bruno Mountain, Daly City 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
  JEPS60422  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-21 6662 b San Mateo about 2 mi s Half Moon Bay road junction and Skyline Boulevard Comment
  JEPS66229  Castilleja wightii T. I. Chuang with Fei-Mei Chuang 1971-6-12 6908 San Mateo just s Arroyo de Los Frijoles State Beach (on U.S. Hwy 1) Comment
  JEPS6880  Castilleja wightii Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4739 San Mateo lower slopes Lobitos Canyon (0.25 mi e of and above the junction of the road up the canyon with the old coast road) 97 Comment
  RSA191943  Castilleja wightii Robert F. Thorne, Percy C. Everett 1963-6-9 32210 San Mateo On top of San Bruno Mountain, near TV tower. 335 Comment
  UC1537582  Castilleja wightii Gordon H. True Jr. 1936-6-14 510 San Mateo 1 mi from Skyline Blvd. (on Salada Beach Road) 182 Comment
  UC198266  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore R.R. Comment
  UCR71440  Castilleja wightii L. R. Heckard, Rimo Bacigalupi 1963-7-2 1332 San Mateo Along old county road over San Pedro and Montara Mtns; N flank of San Pedro Mt. 244 Comment
  RSA296376  Castilleja wightii R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4557 San Mateo Road-bank just south of bridge across Arroyo de los Frijoles, along Calif. Highway No 1, 3.3 miles south of Pescadero. Comment
  JROH1524  Caulanthus lasiophyllus John H. Thomas 1967-5-31 12940 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC48394  Ceanothus cuneatus var. cuneatus Lewis S. Rose 1964-3-23 64011 San Mateo Emerald Lake, w. of Redwood City 121 Comment
  JROH3530  Ceanothus oliganthus var. sorediatus John H. Thomas 1973-3-12 16492 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC774510  Ceanothus oliganthus var. sorediatus Carl B. Wolf 1941-7-31 11113 San Mateo 1 mi e summit La Honda Grade; Santa Cruz Mts., summit of La Honda Grade 396 Comment
  HSC23787  Ceanothus papillosus Mary Katherine Wicksten 1971-6-23 95 San Mateo Huddart Park, Archery Flat Comment
  POM136268  Ceanothus papillosus var. roweanus Stewart H. Burnham 1894-4-29 1577 San Mateo Above woodside. Comment
  RSA136268  Ceanothus papillosus var. roweanus Stewart H. Burnham 1894-4-29 1577 San Mateo Above woodside. Comment
  CAS-BOT-BC52278  Ceanothus thyrsiflorus Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Powerline Ridge Comment
  CAS-BOT-BC52280  Ceanothus thyrsiflorus Elizabeth McClintock 1965-3-28 s.n. San Mateo North Powerline Ridge Comment
  CAS-BOT-BC52283  Ceanothus thyrsiflorus George Oberlander 1950-4-23 859 San Mateo on Sawyer Ridge Comment
  CAS-BOT-BC52287  Ceanothus thyrsiflorus L. R. A. 1902-5-20 2463 San Mateo King's Mountain Comment
  CAS-BOT-BC52295  Ceanothus thyrsiflorus J. I. McMurphy 1906-5-8 12 San Mateo Woodside, Santa Cruz Mts. 121 Comment
  CAS-BOT-BC52302  Ceanothus thyrsiflorus Barrett Anderson; Peter Rubtzoff 1988-4-22 2667 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Canyon Parkway 365 Comment
  RSA15351  Ceanothus thyrsiflorus Carl B. Wolf 1927-2-28 165 San Mateo Pescadero. Comment
Read comments
Aug 5 2015
  UC79917  Ceanothus thyrsiflorus Alice Eastwood April 1893 San Mateo San Bruno Range Comment
  UCSB3905  Ceanothus thyrsiflorus var. griseus Walker, Clifford 1954-4-20 San Mateo Woodside Rd. 1 mi. E. Woodside 2 Comment
  JROH585  Centaurea calcitrapa John H. Thomas 1970-7-5 15671 San Mateo Jasper Ridge Biological Preserve, Stanford University; by bridge Comment
  UC172082  Centaurea calcitrapa Harriet A. Walker 1913-8-14 3085 San Mateo Burlingame Comment
  CAS-BOT-BC274590  Centaurea calcitrapa W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. In San Mateo ravine, Crystal Springs Reservoir Comment
  CAS-BOT-BC274591  Centaurea calcitrapa A. D. E. Elmer 1903-7-1 4961 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC274593  Centaurea calcitrapa Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC274596  Centaurea calcitrapa R. E. Frenkel 1963-12-7 318 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.4 mile north of the junction with Spring Valley Ridge Road Comment
  CDA35517  Centaurea calcitrapa Ed Finley 1986-9-3 s.n. San Mateo Near Pilarcitos Lake. 0 Comment
  JEPS127866  Centaurea melitensis Adam C. Schneider 2013-5-17 181 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC277128  Centaurea melitensis John H. Thomas 1963-7-19 10199 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  JROH606  Centaurea solstitialis John Hunter Thomas 1981-10-25 20769 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  JROH611  Centaurea solstitialis John Hunter Thomas 1991-11-21 26109 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  RSA407369  Centaurea solstitialis Lyman Benson 1932-7-25 3954 San Mateo Menlo Park. 30 Comment
  CAS-BOT-BC272817  Centromadia parryi subsp. parryi David D. Keck 1931-10-5 1291 San Mateo Salada Beach Comment
  CAS-BOT-BC279330  Centromadia pungens subsp. pungens J. H. Thomas 1954-5-28 4231 San Mateo Redwood City. Near intersection of Bayshore and Main St. Comment
  CAS-BOT-BC279331  Centromadia pungens subsp. pungens Ned Cahill 1974-10-8 377 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SBBG32413  Centromadia pungens subsp. pungens L. S. Rose 1965-9-20 San Mateo Burlingame, Trousdale Dr and California Drive 9 Comment
  UC702541  Centromadia pungens subsp. pungens L. S. Rose 1941-10-10 41463 San Mateo along the Bayshore Boulevard 3 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
  CAS-BOT-BC384960  Cerastium arvense Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mt. Reservoir Hill Comment
  CAS-BOT-BC384961  Cerastium arvense Paul F. Covel 1937-4-15 580 San Mateo Hgwy sumt. Montara Mts. Comment
  RSA15269  Cercocarpus betuloides Carl B. Wolf 1928-3-2 233 San Mateo On hillside above Searsville Lake, Comment
  JROH3615  Cercocarpus betuloides var. betuloides A. D. E. Elmer 1903-5-1 4530 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH3631  Cercocarpus betuloides var. betuloides John Hunter Thomas 1989-5-30 24754 San Mateo Jasper Ridge Biological Preserve, Stanford University. Knoll to the west of the dam Comment
  JROH1825  Chenopodium rubrum var. humile John Hunter Thomas 1980-11-27 20195 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach area Comment
  JROH5858  Chenopodium rubrum var. humile Toni Corelli 2003-11-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; dry lake bed, Corte Madera Creek delta Comment
  CAS-BOT-BC497729  Chlorogalum pomeridianum Elizabeth McClintock 1965-3-28 s.n. San Mateo Plants of San Bruno Mountain, Trillium Gulch Comment
  JROH4647  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1974-6-27 17454 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing below Searsville Dam Comment
  CAS-BOT-BC246318  Chloropyron maritimum subsp. palustre L. R. Abrams 1914-7-16 5124 San Mateo Cooley's Landing on San Francisco Bay Comment
  JROH3223  Chorizanthe diffusa W. R. Dudley 1910-5-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1135209  Chrysolepis chrysophylla var. chrysophylla C. M. Belshaw 1935-1-25 1461 San Mateo 4.5 mi w Woodside (on Kings Mt road); Santa Cruz Quad. 609 Comment
  CAS-BOT-BC36402  Chrysolepis chrysophylla var. minor David D. Keck 1934-7-7 2926 San Mateo Kings Mountain, just east of summit 548 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
  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
  CAS-BOT-BC277890  Cirsium brevistylum A. D. E. Elmer 1903-6-1 4277 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC277896  Cirsium brevistylum L. R. Abrams; I. L. Wiggins 1939-6-3 427 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC277893  Cirsium brevistylum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  RSA0070579  Cirsium brevistylum A. D. E. Elmer 1903-06 4277 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC100944  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-6-1 4292 San Mateo Crystal Springs Lake Comment
  CDA1227  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo E shore Upper Crystal Springs Lake; 0.7 miles S/ road across lake. 0 Comment
  RSA0008390  Cirsium fontinale var. fontinale J. T. Howell 1939-6-16 14743 San Mateo Crystal Springs Lake. 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
  RSA34005  Cirsium occidentale var. venustum J. Wendell Howe 1930-5-21 s.n. San Mateo Hillside near Alpine Creek Comment
  CAS-BOT-BC280520  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280523  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  JEPS27347  Cirsium quercetorum Rimo Bacigalupi with L. Heckard and Jim Roof 1961-4-24 7607 San Mateo meadow at summit of divide between Colma Canyon and Guadulupe Valley (just n of San Bruno Mt.); Colma Canyon, Guadalupe Valley, San Bruno Mt. 205 Comment
  JEPS89476  Cirsium quercetorum Dean W. Taylor 1989-8-1 10416 San Mateo Montara State Beach along Highway 1 at junction with road to North Peak of Montara Mountain Montara State Beach; Santa Cruz Mountains, , Hwy 1 67 Comment
  CAS-BOT-BC280526  Cirsium quercetorum Alice Eastwood; John Thomas Howell 1938-6-26 6054 San Mateo 2 miles south of San Gregorio Comment
  JROH641  Cirsium vulgare John Hunter Thomas 1983-7-7 22813 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  JROH638  Cirsium vulgare John H. Thomas 1974-6-30 17460 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD130823  Cirsium vulgare Otto T. Solbrig 1958-8-3 2920 San Mateo near road on Highway 5, Crystal Spring Lake. 30 Comment
  JROH5820  Clarkia purpurea subsp. quadrivulnera John Rawlings 2016-5-10 1782 San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern edge of the Dennis Martin Site 77 Comment
  CAS-BOT-BC163971  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1900-5-19 s.n. San Mateo One mile West of summit of La Honda Road Comment
  POM271800  Clarkia purpurea subsp. quadrivulnera Lyman Benson 1930-4-17 2088 San Mateo Stanford University, foothills. Upper Sonoran. 122 Comment
  SEINET4145648  Clarkia purpurea subsp. quadrivulnera A. A. Heller 1906-6-8 8382 San Mateo Near Ocean View, San Francisco Comment
  CAS-BOT-BC164563  Clarkia purpurea subsp. viminea W. R. Dudley 1905-6-19 s.n. San Mateo Above Iverson's Place near Pescadero Creek Comment
  CAS-BOT-BC164566  Clarkia purpurea subsp. viminea John H. Thomas 1971-5-2 15844 San Mateo Near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC165129  Clarkia rubicunda Josephine D. Randall 1907-7-23 268 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC165141  Clarkia rubicunda Ira L. Wiggins 1938-7-9 8933 San Mateo Pigeon Point, about one half mile North of the Light House 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-BC165161  Clarkia rubicunda W. R. Dudley 1896-11-15 s.n. San Mateo Near Pilarcitos Lake Comment
  CAS-BOT-BC165175  Clarkia rubicunda Hester R. Davis 1920-6-1 180 San Mateo Back of Redwood City Comment
  CHSC39185  Clarkia rubicunda R. N. Bowman 1984-6-29 3694 San Mateo 100 m. n of bridge over San Gregorio Creek in San Gregorio State Beach. Ca. 150 m. e of ocean. 3 Comment
  JEPS43631  Clarkia rubicunda Dr. L. M. Newlon 1921-1 251 San Mateo between Salada and Mussel Rock Comment
  JROH3024  Clarkia rubicunda John Hunter Thomas 1978-7-2 19244 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG5002  Clarkia rubicunda H. and M. Dearing 1951-8-17 6945 San Mateo Pigeon Point, N of Santa Cruz Comment
  UC615203  Clarkia rubicunda Beryl O. Schreiber 1932-5-29 310 San Mateo Spring Valley Water Company Road Comment
  CAS-BOT-BC165135  Clarkia rubicunda Peter H. Raven 1957-7-4 11044 San Mateo State Highway 9, 2.7 miles south-west of junction with State Highway 5 Comment
  CAS-BOT-BC165140  Clarkia rubicunda Lewis S. Rose 1957-7-6 57117 San Mateo Skyline Blvd. w. of San Mateo 182 Comment
  CAS-BOT-BC165160  Clarkia rubicunda W. R. Dudley 1905-6-19 s.n. San Mateo By road above Evans near Iverson place Comment
  CAS-BOT-BC165163  Clarkia rubicunda Peter H. Raven 1957-6-30 11012 San Mateo Near bridge over Tunitas Creek along state Highway 1 Comment
  CAS-BOT-BC165166  Clarkia rubicunda A. G. Vestal 1937-6-15 s.n. San Mateo About 1/4 mi north from site of former hotel Pebble Beach near Pescadero Comment
  OBI12094  Clarkia rubicunda Lewis S. Rose 1957-7-6 57117 San Mateo Skyline blvd. W of San Mateo 183 Comment
  RSA41288  Clarkia rubicunda Robert F. Hoover 1941-5-20 5108 San Mateo Redwood City hills Comment
  UC1561235  Clarkia rubicunda Barbara Ertter 1989-6-4 8556 a San Mateo near jct. Crocker Ave. and Alexander Ave. (n side of hill that is n-most extension of San Bruno Mt. on n side of Guadalupe Canyon); Daly City 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
  POM32269  Clarkia rubicunda subsp. blasdalei E. B. Copeland 1903-6-17 3332 San Mateo Montara Point Comment
  SEINET4149811  Clarkia rubicunda subsp. blasdalei K. Brandegee s.n. San Mateo Between San Pedro and Moss Beach Comment
  CAS-BOT-BC165606  Clarkia unguiculata A. D. E. Elmer 1903-6-1 4293 San Mateo Alpine School House Comment
  CAS-BOT-BC165600  Clarkia unguiculata Josephine D. Randall 1907-6-5 258 San Mateo Los Trancos Road near Stanford University Comment
  CAS-BOT-BC165603  Clarkia unguiculata C. F. Leithold 1894-8-13 s.n. San Mateo Devil's [Canon] Canyon, branch of Pescadero & Mill Cr., Black Mt. Comment
  JROH3331  Claytonia exigua subsp. exigua John H. Thomas 1958-2-15 6992 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
  CAS-BOT-BC439593  Claytonia parviflora subsp. parviflora H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH5709  Claytonia parviflora subsp. parviflora John Rawlings 2015-3-15 1348 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 8 110 Comment
  JROH5734  Claytonia parviflora subsp. parviflora John Rawlings 2015-4-5 1654 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  CAS-BOT-BC439591  Claytonia parviflora subsp. parviflora John H. Thomas 1963-5-20 10097 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  JROH3406  Clematis lasiantha John H. Thomas 1959-4-5 7666 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral at the western end of the ridge Comment
  JROH3410  Clematis lasiantha John H. Thomas 1966-4-29 11586 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD49791  Clematis lasiantha John H. Thomas 1959-4-5 7666 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto, western end 152 Comment
  SEINET12099156  Clematis ligusticifolia Unknown 1931-1 7796 San Mateo Jaspan Ridge, common Comment
Read comments
May 3 2019
  CAS-BOT-BC499369  Clintonia andrewsiana W. R. Dudley 1915-9-1 s.n. San Mateo El Corte de Madera Creek Comment
  CAS-BOT-BC499404  Clintonia andrewsiana L. R. A. 1902-5-22 2465 San Mateo Kings Mountain Comment
  RSA18200  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 7.5 miles from Pescadero on Alpine Creek Road. Comment
  UC729634  Collinsia heterophylla Carl B. Wolf 1929-5-17 3714 San Mateo 1 mi w of Skyline Boulevard (on Alpine Road); Alpine Road 304 Comment
  UCD123583  Collinsia heterophylla W. A. Harvey; J. M. Tucker 1948-6-29 1702 San Mateo beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC240935  Collinsia multicolor Reed C. Rollins 1942-4-30 3019 San Mateo San Bruno Hills, 1 mile south of Daly City Comment
  RSA176753  Collomia heterophylla John H. Thomas 1961-5-5 9217 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  RSA18363  Collomia heterophylla C. B. Wolf 1929-5-25 3725 San Mateo 1/4 mi. no. of base of La Honda Grade on road to Woodside Comment
  POM132669  Conium maculatum A. D. E. Elmer 1903-07 4957 San Mateo San Mateo Comment
  JROH1849  Convolvulus arvensis John Hunter Thomas 1982-7-2 21056 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  JROH1854  Convolvulus arvensis John Hunter Thomas 1987-5-19 24298 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285992  Conyza bonariensis W. Knight; I. Knight 1966-10-4 2042 San Mateo San Bruno Mountain. Crocker hills marsh between Geneva and Guadalupe parkway 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
  UCD77568  Corallorhiza maculata Robert E. Preston 2001-5-30 1534 San Mateo Ca. 9 mi nnw of Boulder Creek. 365 Comment
  RSA40318  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside. 549 Comment
  JROH4033  Cordylanthus rigidus subsp. rigidus Deane Bowers 1980-8-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; outskirts just down the road from the Escobar entrance Comment
  JROH658  Coreopsis tinctoria Ruth Porter 1997-11-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing along San Francisquito Creek Comment
  POM132435  Cornus californica C. F. Baker 1902-9-2 1551 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC209819  Cornus glabrata Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  JROH1868  Cornus sericea subsp. sericea John Hunter Thomas 1981-5-5 20536 San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing Comment
  JROH1871  Cornus sericea subsp. sericea John Hunter Thomas 1981-7-24 20731 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1883  Cornus sericea subsp. sericea John Hunter Thomas 1991-8-4 25080 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  CAS-BOT-BC190041  Cortaderia jubata Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon. Comment
  CDA1904  Cortaderia jubata G. D. Barbe 1977-11-17 2353 San Mateo At intersection of Skyline Blvd. (Hwy 35) and Hwy 92 at Skylawn Memorial Park, between San Mateo and Half Moon Bay. 0 Comment
  UC311542  Corylus californica A. D. E. Elmer Mar 1903 4536 San Mateo Kings Mountain Comment
  CAS-BOT-BC180359  Corylus cornuta subsp. californica George Oberlander 1950-2-1 415 San Mateo Sawyer Ridge. San Francisco Watershed Reserve Comment
  CAS-BOT-BC180364  Corylus cornuta subsp. californica W. R. Dudley 1903-7-10 23 San Mateo Corte de Madera Canon [canyon], Santa Cruz Mts., Santa Cruz Peninsula Comment
  UCR64445  Corylus cornuta var. californica David D. Keck 1932-2-12 1362 San Mateo La Honda road, east slope of Coast Range above Searsville Lake 305 Comment
  SEINET12034011  Corylus cornuta var. californica J. H. Thomas 1959-1 7668 San Mateo Jasper Ridge,about 5 mi SW of Palo Alto 91 Comment
  CAS-BOT-BC287202  Cosmos bipinnatus Prof. W. R. Dudley 1894-3-28 s.n. San Mateo Santa Cruz Mt Peninsula.l Opposite Halfmoon Bay Comment
  CAS-BOT-BC452289  Cotoneaster franchetii Philip Wheeler 1965-6-13 s.n. San Mateo San Bruno Mountain; Colma Canyon Comment
  SEINET7876341 Image available Cotoneaster lacteus A. T. Whittemore 2001-1 01 -019 San Mateo Garden of 418 Hillway Dr., Redwood City. 98 Comment
  CAS-BOT-BC452290  Cotoneaster pannosus Elizabeth McClintock; Paul Reeberg 1988-5-30 s.n. San Mateo San Bruno Mountain; Colma Canyon Comment
  JROH3639  Cotoneaster pannosus John Hunter Thomas 1981-4-23 20466 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC287308  Cotula australis Peter H. Raven 1951-2-8 2731 San Mateo Summit ridge, San Bruno Mts Comment
  JROH663  Cotula coronopifolia John Hunter Thomas 1982-11-6 21198 San Mateo Jasper Ridge Biological Preserve, Stanford University; along edge of Searsville Lake delta Comment
  CAS-BOT-BC291462  Cotula coronopifolia Javier Penalosa 1963-2-23 2658 San Mateo South of Crocker Ave., San Bruno Mountain 213 Comment
  JEPS50002  Crassula aquatica F. T. Bioletti June, 1893 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC427839  Crassula connata A. D. E. Elmer 1903-4-1 4719 San Mateo San Bruno Hills Comment
  SEINET12216216  Crassula connata E. McClintock, Knight, W.; Knight, I. 1982-1 4631 San Mateo from windy Kamchatka Point, San Bruno Mountain Comment
  UCSC007736  Crassula connata Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC290331  Crepis Ira L. Wiggins 1979-8-26 22250 San Mateo Alley between Woodland and Central Avenues, running from Pope Street to Gilbert Street, Menlo Park Comment
  JROH668  Crepis vesicaria subsp. taraxacifolia John Hunter Thomas 1986-6-7 24082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1956  Croton setiger Duncan M. Porter 1960-10-12 727 San Mateo Jasper Ridge Biological Preserve, Stanford University; flat area on crest of the ridge (above area G) Comment
  JROH4990  Crypsis schoenoides John Hunter Thomas 1982-11-6 21208 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake Comment
  JROH4999  Crypsis vaginiflora John H. Thomas 1976-10-16 18405 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JEPS127873  Cryptantha flaccida Adam C. Schneider 2013-5-17 183 San Mateo Crystal Springs Reservoir Comment
  JROH1361  Cryptantha flaccida John Hunter Thomas 1991-5-2 25009 San Mateo Jasper Ridge Biological Preserve, Stanford University; near exclosure Comment
  JROH1369  Cryptantha micromeres John Rawlings 2011-6-14 1078 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail b between serpentine contact and large rock at uphill side of trail that marks the Piperia elongata site. 143 Comment
  JROH5626  Cryptantha micromeres John Rawlings 2014-5-6 1224 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  JROH1372  Cryptantha microstachys John H. Thomas 1961-4-29 9197 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH1378  Cryptantha microstachys John Hunter Thomas 1978-5-16 19213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1387  Cryptantha torreyana var. pumila John Rawlings 2009-5-7 1067 San Mateo Jasper Ridge Biological Preserve, Stanford University. North edge of Trail 9. 162 Comment
  CAS-BOT-BC80654  Cupressus goveniana W. R. Dudley s.n. San Mateo Ridge between Pescadero and Butano. Santa Cruz Mountains Comment
  CAS-BOT-BC80787  Cupressus macrocarpa J. H. Thomas 1960-8-28 8832 San Mateo Growing on steep road bank near Skyline Blvd. and Summit Drive to the west of Hillsborough. Comment
  CAS-BOT-BC224413  Cuscuta californica Josephine D. Randall 1907-7-23 107 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  CDA33530  Cuscuta indecora Koren Widdel 2008-10-23 PDR# 1481070 San Mateo Menlo Park; 521 Entrada Way. 0 Comment
  JROH1862  Cuscuta occidentalis John Rawlings 2011-11-15 1095 C San Mateo Jasper Ridge Biological Preserve, Stanford University. Boat launch below Searsville Lab. 104 Comment
  POM7529  Cuscuta pentagona C. F. Baker 1903-10-15 1761 San Mateo Stanford University. Comment
  RSA51358  Cuscuta salina L. S. Rose 1949-8-24 49167 San Mateo South San Francisco Comment
  JROH5712  Cuscuta subinclusa John Rawlings, Ann Lambrecht, Diane Renshaw 2015-5-19 1548 San Mateo Jasper Ridge Biological Preserve, Stanford University. Horse Trail near Escobar Rd. 121 Comment
  RSA800141  Cyclospermum leptophyllum Peter Rubtzoff 1988-6-25 9927 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  CAS-BOT-BC287338  Cynara cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just S of Main St, Redwood City Comment
  RSA120949  Cynara scolymus J. T. Howell 1956-11-14 31961 San Mateo Bayshore Highway just south of Main Street, Redwood City. Comment
  RSA141091  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
  JROH5002  Cynodon dactylon John H. Thomas 1967-11-5 14135 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130412  Cynoglossum grande Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  SD67319  Cynoglossum grande Darley F. Howe 1967-4-14 4349 San Mateo San Francisco Game Reserve near San Bruno 89 Comment
  JROH5010  Cynosurus echinatus John Hunter Thomas 1986-6-17 24099 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5011  Cynosurus echinatus W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek -- above low-flow causeway on left in rocks. 81 Comment
  SD146097  Cynosurus echinatus G. K. Helmkamp, E. A. Helmkamp 1999-6-28 4958 San Mateo Santa Cruz Mountains; Sky Londa; Junction of CA-84 & CA-35; 5 miles south of central Redwood City 456 Comment
  JROH4386  Cyperus eragrostis John H. Thomas 1959-8-22 8084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC114453  Cyperus eragrostis David Daniels Keck 1931-8-6 1263 San Mateo Desiccated swamp near Searsville Lake. 75 Comment
  CAS-BOT-BC114456  Cyperus eragrostis W. R. Dudley 1908-6-19 s.n. San Mateo Road from Tanforan to Jersey Dairy. Comment
  RSA101027  Cyperus eragrostis G. Oberlander 1949-7-24 318 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve Comment
  JROH4400  Cyperus erythrorhizos John Hunter Thomas 1988-10-17 24597 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH5716  Cyperus erythrorhizos John Rawlings 2015-9-22 1640 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  CAS-BOT-BC133770  Cypripedium fasciculatum Miss. Bolton 1911-5-6 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  SEINET5546172  Cypselea humifusa H. S. Gentry 1931-1 72 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. 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-BC198209  Cytisus striatus Rosemary Leen 1985-5-23 s.n. San Mateo Northeast Ridge, near Guadelupe Valley Rd., San Bruno Mountain Comment
  CAS-BOT-BC189821  Dactylis glomerata Elizabeth McClintock; Paul Reeberg 1988-6-28 s.n. San Mateo San Bruno Mountains. Along Old Guadalupe Trail. 213 Comment
  CAS-BOT-BC192234  Danthonia californica George Oberlander 1950-5-6 915 San Mateo San Francisco Watershed Reserve Comment
  JROH5035  Danthonia californica H. J. Dengler 1967-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Found by the vernal spring at west end of the serpentine meadow 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
  SJSU15928  Danthonia californica John Rawlings, Toni Corelli 2016-4-29 1761 San Mateo Cascade Field, north and south of Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  RSA128798  Danthonia californica var. americana P. H. Raven 1900-4-30 1966 San Mateo along streets, Montara 24 Comment
  JROH1907  Datisca glomerata John Hunter Thomas 1991-11-21 25104 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  JEPS13252  Daucus carota Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5444 San Mateo just s. Pedro Valley (along grade on Ca Hwy. No. 1) Comment
  JROH230  Daucus pusillus John Hunter Thomas 1989-5-11 24742 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS20107  Deinandra corymbosa Peter H. Raven 1957-9-1 11295 San Mateo 1.1 mi s Pigeon Point Lighthouse Comment
Read comments
Aug 2 2007
  SD12568  Deinandra corymbosa Edith A. Purer 1933-7-27 5339 San Mateo High stabilized sand dunes, Pigeon Point. Comment
  UC1536896  Deinandra corymbosa Gordon H. True Jr. 1936-6-14 501 San Mateo s Salada Beach (meadow in canyon) 365 Comment
  SD30844  Deinandra corymbosa Edith A. Purer 1933-5-31 3662 San Mateo Spring Valley Lakes. Comment
  UC406882  Deinandra corymbosa David D. Keck 1927-6-10 396 San Mateo Comment
  CAS-BOT-BC299204  Deinandra corymbosa subsp. corymbosa James I. McMurphy 1906-11-17 2 San Mateo Portola Comment
  CAS-BOT-BC299211  Deinandra corymbosa subsp. corymbosa Lewis S. Rose 1931-8-28 s.n. San Mateo Moss Beach Comment
  CAS-BOT-BC299222  Deinandra corymbosa subsp. corymbosa Alice Eastwood 1912-6-2 217 San Mateo Granada Comment
  CAS-BOT-BC389749  Delphinium M. Danielson 1967-4-30 s.n. San Mateo Old road above Crystal Springs Rd. on S.F. Watershed lands Comment
  CAS-BOT-BC9218  Delphinium californicum M. K. Curran 1884-1-1 s.n. San Mateo at Colma near San Francisco Comment
  JROH3435  Delphinium californicum subsp. californicum John Hunter Thomas 1977-6-16 18771 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9869  Delphinium nudicaule Oliver Norvell 1931-4-18 1417 San Mateo Kings Mountain road. Comment
  CAS-BOT-BC9872  Delphinium nudicaule David Daniels Keck 1934-7-7 2928 San Mateo Kings Mountain, west of summit. 609 Comment
  RSA18292  Delphinium nudicaule Carl B. Wolf 1927-6-21 425 San Mateo East slope of Kings Mt. 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-BC7933  Delphinium variegatum George Thomas Oberlander 1950-5-28 985 San Mateo near Lower Crystal Springs Lake Comment
  CAS-BOT-BC7941  Delphinium variegatum John Hunter Thomas 1974-4-11 17134 San Mateo SE of Canada Road and Edgewood Road, NW of Woodside 152 Comment
  CAS-BOT-BC7897  Delphinium variegatum subsp. variegatum W. R. Dudley 1896-4-4 s.n. San Mateo near Crystal Springs Comment
  SEINET10476252  Dendromecon rigida Mary Susan Taylor 1978-8-30 Taylor 1865 San Mateo Comment
  CAS-BOT-BC192598  Deschampsia cespitosa subsp. holciformis L. R. Abrams 1927-6-15 s.n. San Mateo Spring Valley Lakes Comment
  JROH5057  Deschampsia danthonioides John Rawlings 2007-5-2 1019 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just off (south side) Road F at edge of chaparral in vernally wet area. 167 Comment
  JROH5674  Deschampsia elongata John Rawlings 2014-6-10 1276 San Mateo Jasper Ridge Biological Preserve, Stanford University; ecotone between dominant Salix exigua on sandy lake shore and Typha angustifolia in drying Searsville lake bed, 50 m south of the boat landing and old lab. Comment
  CAS-BOT-BC905  Dicentra chrysantha Mrs. Ernest Meiere 1916-6-1 s.n. San Mateo Mt. Diablo Comment
  CAS-BOT-BC912  Dicentra formosa J. H. Thomas 1961-5-14 9364 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  CAS-BOT-BC500897  Dichelostemma capitatum Margaret A. Barry 1937-5-15 119 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC500898  Dichelostemma capitatum George Oberlander 1950-3-18 563 San Mateo Sawyer Ridge Comment
  CAS-BOT-BC500928  Dichelostemma capitatum Ned Cahill 1974-4-23 164 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SEINET12044684  Dichelostemma capitatum R. S. Ferris 1921-1 2149 San Mateo San Bruno Mt. 183 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
  SEINET12044675  Dichelostemma congestum G. C. Kimber, Roush, L. 1920-1 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC150443  Diplacus aurantiacus J. F. Emmel 1970-2-22 256 San Mateo 0.3 air mile SE of 1314 summit, on NE slope of San Bruno Mt. Comment
  CAS-BOT-BC150446  Diplacus aurantiacus Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Base of Quarry 2 Comment
  CAS-BOT-BC150457  Diplacus aurantiacus Viola Nichols 1911-5-6 1006 San Mateo Belmont, 2nd hill Comment
  CAS-BOT-BC150461  Diplacus aurantiacus John H. Thomas 1958-3-19 7046 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC151992  Diplacus douglasii H. A. Dutton 1900-2-4 s.n. San Mateo Woodside serpentine. Comment
  JEPS127891  Dipsacus sativus Adam C. Schneider with C. Matt Guilliams and Will Freyman 2014-6-24 301 San Mateo Crystal Springs Reservoir Comment
  HSC67074  Dirca occidentalis Richard Spjut, Donald Stoffey 1980-5-16 6197 San Mateo Crystal Springs Reservoir, 2 mi. W of San Mateo. 61 Comment
  JROH4198  Dirca occidentalis John H. Thomas 1958-2-15 6980 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4201  Dirca occidentalis John H. Thomas 1968-2-11 14144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4209  Dirca occidentalis John H. Thomas 1977-2-20 18470 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4212  Dirca occidentalis John Hunter Thomas 1981-4-5 20282 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
  JROH4216  Dirca occidentalis Carol Zabel 1989-2-20 1 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
  POM274503  Dirca occidentalis Lyman D. Benson 1929-3-2 992 San Mateo East of Lake Searsville Comment
  POM274504  Dirca occidentalis Lyman D. Benson 1929-3-2 992 San Mateo East of Lake Searsville Comment
  SEINET3820684 Image available Dirca occidentalis Lewis S. Rose 1933-3-2 33002 San Mateo San Andreas Lake. Comment
  UCD64392  Distichlis spicata var. stolonifera A. A. Beetle 1942-10-1 1890 San Mateo Near San Mateo, borders of San Francisco Bay. Comment
  UC1001491  Dodecatheon clevelandii subsp. patulum H. J. Thompson 1948-2-23 1037 San Mateo sw Stanford University (e end of Jasper Ridge near Los Trancos Creek); sw of Stanford University, nr Los Trancos Creek Comment
  JROH3380  Dodecatheon hendersonii Le Roy Abrams 1901-3-3 1119 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38129  Dodecatheon hendersonii Marie Cummings 1933-4-11 3687 San Mateo Spring Valley Lake Comment
  JEPS48589  Dodecatheon hendersonii James G. Daly 1934-1-1 208 San Mateo San Gregorio Watershed Santa Cruz Mts., San Gregorio Watershed (branch of La Honda Canyon, sw San Mateo County) Comment
  CAS-BOT-BC159504  Drymocallis glandulosa var. glandulosa Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo Grassy slope above Hillside Blvd., South San Francisco - San Bruno Mountain Comment
  CAS-BOT-BC159534  Drymocallis glandulosa var. glandulosa W. R. Dudley 1900-3-17 s.n. San Mateo Grade up Montara Mts. - Santa Cruz Peninsula Comment
  JROH3741  Drymocallis glandulosa var. wrangelliana John Rawlings, Toni Corelli 2013-5-7 1173 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the path to old quarry off of Trail 12. 109 Comment
  RSA112450  Drymocallis glandulosa var. wrangelliana Josephine Randall 1907-7-7 340 San Mateo Kings Mtn. Comment
  RSA451896  Drymocallis glandulosa var. wrangelliana Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  UC481507  Drymocallis glandulosa var. wrangelliana H. F. Copeland 1929-7-4 San Mateo La Honda Grade Comment
  CAS-BOT-BC67888  Dryopteris arguta Ira L. Wiggins 1928-4-14 2920 San Mateo Alpine Creek Road Comment
  JROH43  Dryopteris arguta L. Fletcher 1986-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  UC1063776  Dryopteris arguta G. E. Sindel 1935-8-2 321 San Mateo head of Harington Creek; Santa Cruz Quadrangle Comment
  UC474217  Dryopteris arguta H. F. Copeland 1929-7-4 San Mateo La Honda Grade Comment
  CAS-BOT-BC67894  Dryopteris arguta G. Edelbrock 1975-2-8 003 San Mateo SF watershed - Along roadcut at Stone Dam below Pilarcitos Lake 121 Comment
  UCSB17937  Dryopteris arguta Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles SW of Stanford campus, between Santa Clara Valley and Santa Cruz Mtns. 137 Comment
  POM281632  Dryopteris expansa Lyman Benson 1930-5-26 2139 San Mateo Stanford University, Lake Searsville 152 Comment
  CAS-BOT-BC428061  Dudleya cymosa subsp. cymosa W. R. Dudley 1897-6-5 s.n. San Mateo Santa Cruz Peninsula. Flat Rock Waddell Creek Comment
  CAS-BOT-BC428361  Dudleya farinosa L. R. Abrams 1909-8-2 4272 San Mateo At Pescadero Comment
  JROH5090  Echinochloa crus-galli John Hunter Thomas 1981-9-24 20749 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC112955  Eleocharis macrostachya George Thomas Oberlander 1950-5-6 922 San Mateo Marsh, San Andreas Lake. Comment
  JROH4409  Eleocharis macrostachya John Hunter Thomas 1987-5-19 24301 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS113013  Elymus californicus Dean W. Taylor 1994-5-10 14279 San Mateo along Crystal Springs Road 0.3 mi e of junction of Tartan Trail (Santa Cruz Mountains, San Mateo Creek drainage); Santa Cruz Mountains, San Mateo Creek drainage 67 Comment
  JEPS83040  Elymus californicus Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 429 San Mateo near crest of Cahill Ridge (w of gravel road, 0.7 mi nw of gate and 3.3 km nnw of intersection of Cal Hwys 35 and 92, along Cahill Ridge to above Pilarcitos Lake); San Francisco Watershed Reserve 327 Comment
  CAS-BOT-BC203685  Elymus glaucus subsp. glaucus J. Clausen 1937-6-20 1529 San Mateo West of Redwood City near the Easter Cross Comment
  LA14855  Elymus multisetus David D. Keck; 1932-5-6 1469 San Mateo Belmont Comment
  CDA31732  Elymus multisetus I. J. Campbell 1960-4-14 4475 San Mateo Skyline Blvd., 1 mile SE of Alpine Rd. junction. 0 Comment
  JROH5278  Elymus triticoides W. H. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Just outside gate on east side of low-flow causeway -- San Francisquito Creek, Whiskey Hill entrance, south side of road. Comment
  JROH3046  Epilobium brachycarpum John Hunter Thomas 1981-10-25 20774 San Mateo Jasper Ridge Biological Preserve, Stanford University; on causeway Comment
  RSA72120  Epilobium brachycarpum F. W. Peirson 1925-9-13 6428 San Mateo Rockaway beach Comment
  CAS-BOT-BC166616  Epilobium canum subsp. canum W. R. Dudley 1893-7-22 s.n. San Mateo Guadalupe Valley Comment
  JROH3060  Epilobium ciliatum subsp. ciliatum John Hunter Thomas 1981-7-12 20694 San Mateo Jasper Ridge Biological Preserve, Stanford University; growing at boat dock Comment
  JROH3061  Epilobium densiflorum John H. Thomas 1971-8-7 16018 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM32709  Epilobium minutum C. F. Baker 1902-5-4 749 San Mateo Woodside. Comment
  UC136743  Epilobium minutum C. F. Baker 1902-5-4 749 San Mateo Woodside Comment
  JEPS79604  Equisetum arvense Edward Lee and Ann Johnson 1974-8-24 San Mateo near Pillar Point (Princeton Marsh) Comment
  UCR279844  Equisetum arvense Peter Rubtzoff 1976-3-14 8444 San Mateo San Francisco Bay Region, San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; upper part of East Fork Colma Creek Canyon 220 Comment
  CAS-BOT-BC57028  Equisetum arvense A. D. E. Elmer 1903-5-1 4602 San Mateo Cemeteries Comment
  CAS-BOT-BC57600  Equisetum telmateia Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Radio Road Comment
  CAS-BOT-BC57603  Equisetum telmateia Ira L. Wiggins 1931-3-15 5103 San Mateo between Skyline Boulevard and La Honda Comment
  CAS-BOT-BC57607  Equisetum telmateia George Oberlander 1950-4-2 568 San Mateo south boundary Comment
  JROH65  Equisetum telmateia subsp. braunii John H. Thomas 1967-4-28 12730 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  RSA15287  Equisetum telmateia var. braunii C. B. Wolf 1927-4-3 255 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  SJSU15446  Eragrostis curvula John Rawlings 2009-5-1 1048 B San Mateo This ornamental grass appeared along a short stretch of San Hill Rd. at the entrance to the Horse Park at Woodside. 119 Comment
Read comments
Feb 18 2015
  JROH5142  Eragrostis pectinacea var. pectinacea John H. Thomas 1976-10-16 18407 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry delta in Searsville Lake at the mouth of Corte de Madera Creek. Comment
  SEINET11859535  Erechtites argutus Unknown 1933-8-13 10505 San Mateo Santa Clara Valley, Belmont Comment
  CAS-BOT-BC299883  Erechtites glomeratus Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC299886  Erechtites glomeratus Ira L. Wiggins 1934-8-11 6970 San Mateo Beside tannery, Redwood City Comment
  RSA128463  Erechtites glomeratus Peter H. Raven 1950-6-3 2219 San Mateo Weed along Millbrae Ave, Millbrae. 61 Comment
  POM359361  Ericameria ericoides var. ericoides E. A. Purer 1933-8-25 5511 San Mateo Along Skyline Drive Comment
  JROH649  Erigeron canadensis John H. Thomas 1976-10-16 18423 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH653  Erigeron canadensis John Hunter Thomas 1988-10-17 24600 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH690  Erigeron foliosus var. foliosus John H. Thomas 1971-5-30 15968 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC300611  Erigeron foliosus var. franciscensis W. R. Dudley 1895-6-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of ridge near Searsville dam, Portola Valley Comment
  CHSC57066  Erigeron glaucus Steven Triano 1988-5-24 215 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  POM357521  Erigeron glaucus Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC295092  Erigeron glaucus Catherine A. Toschi 1963-3-17 63 :58 San Mateo East slope of San Bruno Mountains below radio station 213 Comment
  HSC13523  Eriodictyon californicum J. Wendell Howe 1930-5-21 San Mateo Alpine Creek Comment
  HSC24048  Eriodictyon californicum Mary Katherine Wicksten 1971-6-18 6 San Mateo Huddart Park by park office Comment
  JROH2720  Eriodictyon californicum Richard L. Garber 1971-5-11 14 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2721  Eriodictyon californicum John H. Thomas 1971-5-30 15969 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM222784  Eriodictyon californicum S. S. Berry 1909-4-23 s.n. San Mateo Road near Los Francos Creek 61 Comment
  SEINET3479294  Eriodictyon californicum L. S. Rose 1941-7-2 41288 San Mateo Kings Mountains, Kings Mountains 480 Comment
  UC429743  Eriogonum gracile L. R. Abrams 1902-9-21 2988 San Mateo Crystal Lake Comment
  CAS-BOT-BC250545  Eriogonum gracile Paul H. Arnaud, Jr. 1959-8-2 s.n. San Mateo Hills above Redwood City Comment
  RSA393632  Eriogonum latifolium E. S. Spalding 1924-6-28 s.n. San Mateo Moss Beach. Comment
  UCSB461  Eriogonum latifolium Myrick, Donald 1966-6-11 San Mateo Pigeon Point on Highway #1 south of San Francisco Comment
  CAS-BOT-BC251998  Eriogonum latifolium R. S. Ferris 1917-10-21 730 San Mateo ocean cliff - Moss Beach Comment
  CAS-BOT-BC264779  Eriogonum luteolum Lewis S. Rose 1931-8-28 s.n. San Mateo Crystal Spring Lakes Comment
  POM193637A  Eriogonum luteolum L. R. Abrams 1902-9-21 2988 San Mateo Crystal Lake Comment
  RSA169305  Eriogonum nudum var. auriculatum L. S. Rose 1964-9-9 64074 San Mateo Emerald Lake, west of Redwood City 244 Comment
  RSA766375  Eriogonum nudum var. auriculatum D. D. Keck 1931-10-5 1278 San Mateo Between Woodside and Crystal Springs Lake. Comment
  SD38941  Eriogonum nudum var. auriculatum Edith A. Purer 1933-8-25 5522 San Mateo Along roadside, Spring Valley Lakes Comment
  CAS-BOT-BC304075  Eriophyllum confertiflorum Fred Hemphill 1973-5-14 828 San Mateo San Carlos. N of Malabar Rd and Melendry Dr 207 Comment
  RSA0056420  Eriophyllum confertiflorum Lewis S. Rose 1933-5-17 s.n. San Mateo Redwood City. Comment
  UC517987  Eriophyllum confertiflorum var. confertiflorum Lewis S. Rose 1933-5-17 33176 San Mateo Redwood City Comment
  CAS-BOT-BC301256  Eriophyllum lanatum var. arachnoideum Peter H. Raven 1957-6-24 10963 San Mateo Just south of Linda Mar Comment
  CAS-BOT-BC301267  Eriophyllum lanatum var. arachnoideum George Oberlander 1950-7-15 1019 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC301268  Eriophyllum lanatum var. arachnoideum Josephine D. Randall 1907-6-29 68 San Mateo Santa Cruz Peninsula. Kings Mt. Road Comment
  JEPS19486  Eriophyllum lanatum var. arachnoideum Peter H. Raven 1957-6-24 10963 San Mateo just s of Linda Mar Comment
  JROH720  Eriophyllum lanatum var. arachnoideum John H. Thomas 1962-7-15 9912 San Mateo Jasper Ridge Biological Preserve, Stanford University; near northern end of ridge Comment
  POM53930  Eriophyllum lanatum var. arachnoideum C. F. Baker 1902-5-10 797 San Mateo Kings Mountain. Comment
  CAS-BOT-BC124130  Eriophyllum latilobum Amos Arthur Heller 1907-5-28 8584 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  POM54691  Eriophyllum staechadifolium C. F. Baker 1901-10-1 1747 San Mateo Pillar Point Comment
  UC135308  Eriophyllum staechadifolium C. F. Baker 1901-10-1 1747 San Mateo Pillar Point, along coast and in places to summit of coast range; Pacific Coast Range, Pillar Point Comment
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Feb 2 2012
  CAS-BOT-BC301979  Eriophyllum staechadifolium Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. In Colma Canyon Comment
  SEINET11850780  Eriophyllum staechadifolium var. artemisiaefolium E. A. Purer 1933-1 5395 San Mateo 2 mi S of Pigeon Point Comment
  JROH2590  Erodium botrys John H. Thomas 1967-5-10 12838 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2602  Erodium botrys John H. Thomas 1975-4-19 17800 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA391840  Erodium cicutarium Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  JROH2608  Erodium moschatum John Rawlings 2012-5-25 1106 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dennis Martin site near Road B. 79 Comment
  SJSU16023  Eryngium armatum John Rawlings, Toni Corelli 2016-5-13 1792 San Mateo Vallemar Bluff, Moss Beach. USGS Montara Mountain OE W 7.5 Minute (1:24,000 Scale) Topographic Map. 11 Comment
  UC874914  Eryngium armatum Alice Eastwood and John Thomas Howell 1938-6-26 6065 San Mateo Arroyo de los Frijoles Comment
  CAS-BOT-BC54509  Erysimum capitatum James McMurphy 1909-5-25 s.n. San Mateo La Honda. Comment
  CAS-BOT-BC124226  Erysimum franciscanum George Bowyer Rossbach 1938-5-18 837 San Mateo E side of Crystal Springs Lake 106 Comment
  CAS-BOT-BC54870  Erysimum franciscanum Craig Martz 1985-4-15 205 San Mateo South end of Devil's Slide, both sides of SR1. From coast to saddle between San Pedro and Montara Mountain. 304 Comment
  CAS-BOT-BC54873  Erysimum franciscanum John H. Thomas 1965-4-29 10608 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC54877  Erysimum franciscanum Peter H. Raven 1950-2-25 1374 San Mateo San Bruno Mountains. Between Brisbane and N.B.C. Television Station. 243 Comment
  CAS-BOT-BC54888  Erysimum franciscanum Mrs. E. C. Sutliffe 1925-3-1 s.n. San Mateo Crystal Springs Lake. Comment
  LA204415  Erysimum franciscanum H. E. Parks; S. T. Parks 1930-3-10 401 San Mateo Spring Valley Lakes Comment
  RSA187279  Erysimum franciscanum John H. Thomas 1965-4-29 10608 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC1034707  Erysimum franciscanum G. B. Rossbach 1955-3-26 577 San Mateo open rocky summit near radio tower (crest of mt); San Bruno Mountain 400 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
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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
  PGM187  Erysimum franciscanum Vern Yadon 1968-4-5 San Mateo Pigeon Pt Lighthouse Highway 1, Pigeon Pt Lighthouse just S of Comment
  SJSU12766  Erysimum franciscanum S. L. Jones 1986-4-6 87 San Mateo Montara Mt 188 Comment
  CAS-BOT-BC403559  Eschscholzia californica Anne Constant 1955-5-28 201 San Mateo Pescadero Beach 7 Comment
  JEPS121486  Eschscholzia californica Adam C. Schneider 2013-5-17 157 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC403544  Eschscholzia californica H. L. Mason 1922-4-1 s.n. San Mateo At Pigeon Point Light Comment
  JROH2977  Eucalyptus globulus John H. Thomas 1980-11-18 20173 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC202740  Euonymus occidentalis George Oberlander 1949-4-20 617 San Mateo San Francisco Watershed Reserve. Pilarcitos Comment
  CAS-BOT-BC202743  Euonymus occidentalis G. H. Mallory 1919-8-20 s.n. San Mateo La Honda Comment
  CAS-BOT-BC202746  Euonymus occidentalis W. R. Dudley 1910-5-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Los Trancos Creek, above Judge Allen's Comment
  HSC4303  Euonymus occidentalis J. Wendell Howe 1930-3-27 San Mateo Coast Rd. near Pigeon Point. Comment
  RSA3091  Euonymus occidentalis C. B. Wolf 1931-8-21 1203 San Mateo 0.5 mi above east base of La Honda Grade; Santa Cruz Mts. 244 Comment
  CDA19888  Euphorbia oblongata J. Beall 2002-6-3 PDR P 120145 San Mateo San Francisco Bay Area; Pope at San Francisquito Creek. 0 Comment
  HSC103383  Euphorbia oblongata Don Pendleton 2001-4-30 64453 San Mateo Along Sandhill Rd., next to Jasper Ridge Biological Reserve, on the north side of Portola Road, Portola Valley. Comment
  JROH1975  Euphorbia spathulata John H. Thomas 1974-4-4 17083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC310620  Eurybia radulina A. D. E. Elmer 1903-7-1 4973 San Mateo Portola Comment
  CAS-BOT-BC310626  Eurybia radulina J. H. Thomas 1957-8-16 6823 A San Mateo Along Skyline Blvd., near entrance to Isenberg Ranch 518 Comment
  CAS-BOT-BC310621  Eurybia radulina L. R. A. 1902-9-28 3004 San Mateo Portola - Santa Cruz Mts. Comment
  CAS-BOT-BC310623  Eurybia radulina L. R. A. 1902-9-28 3004 San Mateo New Grade Road - Portola Comment
  POM308576  Euthamia occidentalis Henry J. Ramsey, Henry J. Ramsey 1939-10-7 3241 San Mateo Coast, Highway 1. Comment
  CAS-BOT-BC413877  Fallopia convolvulus Ira L. Wiggins 1935-8-24 8159 San Mateo 2 mi. E. of Half Moon Bay 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
  JROH5169  Festuca arundinacea John Hunter Thomas 1992-5-14 25231 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  JROH5469  Festuca bromoides Herbert Dengler 1965-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. S.E. of S. end of Searsville Lake. 152 Comment
  JROH5727  Festuca bromoides John Rawlings 2015-3-8 1307 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 8 though chaparral. 134 Comment
  CAS-BOT-BC278286  Festuca californica W. R. Dudley 1900-3-17 s.n. San Mateo Ravine north of Seal Cove 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
  SEINET206289 Image available Festuca californica Rimo Bacigalupi, L. R. Heckard; J. Roof 1961-4-24 7613 San Mateo Just below rocky spur due north of true summit of San Bruno Mountain directly below and northeast of KQED radio station 343 Comment
  CAS-BOT-BC278347  Festuca californica subsp. californica Walter Knight; Irja Knight 1965-4-25 s.n. San Mateo San Bruno Mountain. Owl's Canyon Comment
  CAS-BOT-BC278350  Festuca californica subsp. californica L. R. A. 1902-5-11 2461 San Mateo Crystal Springs Comment
  CAS-BOT-BC278353  Festuca californica subsp. californica David D. Keck 1932-5-11 1499 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mountains Comment
  CAS-BOT-BC278356  Festuca californica subsp. californica W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Ravine north of Seal Cove Comment
  CAS-BOT-BC278473  Festuca idahoensis L. R. A. 1902-5-11 2450 San Mateo Open ground above La Honda Comment
  CAS-BOT-BC278476  Festuca idahoensis L. R. A. 1902-5-11 2450 San Mateo Crystal Springs Comment
  JROH5487  Festuca microstachys J. H. Thomas 1957-4-16 6654 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH5503  Festuca myuros Stephen N. Turitzin 1976-5-7 8 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5287  Festuca perennis John Hunter Thomas 1986-5-1 23992 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low flow crossing. Comment
  CAS-BOT-BC77694  Ficus carica John H. Thomas 1960-6-25 8795 San Mateo Redwood City, running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street 7 Comment
  RSA191944  Filago gallica R. F. Thorne, P. Everett 1963-6-9 32227 San Mateo On top of San Bruno Mountain. 335 Comment
  CAS-BOT-BC304294  Filago pyramidata Walter & Irja Knight 1967-5-16 s.n. San Mateo San Bruno Mt. Randolph Ave, South San Francisco Comment
  RSA133096  Fragaria californica Donald A. Johansen 1933-5-18 709 San Mateo Along road from Portola to La Honda. Comment
  JEPS44879  Fragaria chiloensis W. L. Jepson 1921-4-3 9115 San Mateo canyon near Colma Comment
  CAS-BOT-BC437034  Fragaria chiloensis J. H. Thomas 1949-6-4 576 San Mateo 1.4 miles south of road to Pescadero Comment
  UC1127972  Fragaria vesca H. S. Yates 1935-2-3 5006 San Mateo 0.5 mi se Pigeon Pt.; Santa Cruz Quad. 30 Comment
  CAS-BOT-BC457511  Fragaria vesca subsp. californica Elizabeth McClintock; Paul Reeberg 1989-2-4 s.n. San Mateo Between Poison Oak Ravine and Tank Ravine, San Bruno Mountains Comment
  CAS-BOT-BC457522  Fragaria vesca subsp. californica Le Roy Abrams 1898-3-1 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC457534  Fragaria vesca subsp. californica Alice Eastwood 1913-2-22 2454 San Mateo San Bruno Hills Comment
  HSC23908  Frangula californica Mary Katherine Wicksten 1971-6-17 78 San Mateo Huddart Park, along Chickadee Trail Comment
  JROH3543  Frangula californica subsp. californica John H. Thomas 1974-9-19 17601 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3573  Frangula californica subsp. tomentella John Hunter Thomas 1981-2-14 20214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA391413  Frankenia salina E. A. Purer 1933-8-13 s.n. San Mateo Belmont Comment
  RSA391414  Frankenia salina D. D. Keck 1931-9-27 1269 San Mateo Dumbarton Bridge. Comment
  CAS-BOT-BC223555  Fraxinus latifolia W. R. Dudley 1894-10-24 s.n. San Mateo Santa Cruz Peninsula. Near San Francisquito Creek Comment
  POM130871  Fraxinus latifolia C. F. Baker 1903-6-30 3355 San Mateo Crystal Springs Lake Comment
  UC878097  Fraxinus latifolia E. W. Rust 1908-4-25 San Mateo vicinity Stanford University; Los Trancos Creek 60 Comment
Read comments
Sep 30 2011
  JROH4686  Fritillaria affinis John Hunter Thomas 1981-4-5 20278 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  POM169866  Fritillaria affinis A. D. E. Elmer 1903-05 5045 San Mateo Portola Comment
  CAS-BOT-BC130121  Fritillaria affinis George Oberlander 1949-4-17 81 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC130123  Fritillaria affinis D. D. Davis 1903-5-2 s.n. San Mateo Near La Honda Comment
  CAS-BOT-BC130126  Fritillaria affinis W. R. Dudley 1900-3-17 s.n. San Mateo On side of Ravine above Pillar Pt. and below Montara Mts. Comment
  RSA371591  Fritillaria affinis Thomas S. Elias 1987-4-10 10336 San Mateo Along Canyon Road, north of Butano State Park Comment
  CAS-BOT-BC130382  Fritillaria liliacea Marion Gallagher 1978-2-11 s.n. San Mateo Farm Hills school site, just east of Interstate 280 on Farm Hill Road route to Redwood City 158 Comment
  SDSU20659  Fritillaria liliacea Sean Ryan 2011-3-18 76 San Mateo 65 yds S of Point Reyes-Petaluma Rd. approx. 0.66 mi W of its intersection with Nicasio Valley Rd. Nicasio Reservoir. 65 Comment
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Sep 10 2014
  RSA15248  Fritillaria liliacea Carl B. Wolf 1927-2-19 s.n. San Mateo Skyline Blvd. above Spring Valley Lakes, near where Belmont Road crosses Comment
  RSA0037218  Fumaria Peter Rubtzoff 1988-5-12 9921 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; NW part of the area, near the old Guadalupe Road between Bog Trail and Saddle Trail Junctions. Comment
  JROH3102  Fumaria capreolata Ann Lambrecht 2002-5-22 3 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek, below Dennis Martin marker Comment
  JROH3783  Galium aparine John Hunter Thomas 1980-5-1 19914 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130682  Galium aparine James I. McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Springs Lakes Comment
  UCD166156  Galium californicum Jack Major; M. Forde and S. Bamberg 1962-4-3 741 a San Mateo Above Coastways Ranch on Finney Creek. (Exact location unknown. Coordinates estimated by label maker.) Comment
  JROH3814  Galium porrigens var. porrigens John Hunter Thomas 1983-4-28 21782 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH799  Gamochaeta ustulata John Hunter Thomas 1985-5-7 23644 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH806  Gamochaeta ustulata John Hunter Thomas 1992-5-5 25208 San Mateo Jasper Ridge Biological Preserve, Stanford University; near picnic area and vicinity Comment
  POM204331  Gamochaeta ustulata I. L. Wiggins 1929-7-4 3772 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  CAS-BOT-BC194570  Garrya elliptica George Oberlander 1949-4-2 47 San Mateo Northern Cahill Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC194571  Garrya elliptica A. D. E. Elmer 1903-2-1 4469 San Mateo Portola Comment
  RSA116710  Garrya elliptica Josephine Randall 1910-02 s.n. San Mateo Los Traucos Creek. Comment
  UC1122630  Garrya elliptica C. R. Clar 1928-9-17 3 San Mateo s of Lake Pilarcitos; San Mateo Quad. 274 Comment
  RSA116655  Garrya elliptica Roxana Stinchfield 1914-2-7 13 San Mateo Judge Allens [difficult to read] Road. Comment
  SD41264  Garrya elliptica Delzie Demaree 1930-2-1 7312 San Mateo Los Trancos Woods. Comment
  SEINET12137147  Garrya elliptica Cummings 1933-1 s.n. San Mateo top of Jasper Ridge Comment
  JROH5187  Gastridium phleoides John H. Thomas 1977-4-29 18568 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5651  Gastridium phleoides John Rawlings 2014-5-23 1226 San Mateo Jasper Ridge Biological Preserve, Stanford University; just up-slope from the Boat Launch (aka Searsville Lab Landing) 104 Comment
  CDA19877  Gastridium phleoides L. Kuwahara 2002-5-17 PDR P 120137 San Mateo San Francisco Bay Area; Growing from rock used to resurface roads on watershed property. 0 Comment
  CAS-BOT-BC219101  Genista monspessulana Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Radio Road Comment
  CAS-BOT-BC219145  Genista monspessulana Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo above the intersection of San Bruno Avenue and Annis. San Bruno Mountains. Comment
  JROH2017  Genista monspessulana John Hunter Thomas 1986-5-8 24023 San Mateo Jasper Ridge Biological Preserve, Stanford University; near smaller part to Searsville Lake Comment
  JROH2022  Genista monspessulana John Hunter Thomas 1991-5-9 25039 San Mateo Jasper Ridge Biological Preserve, Stanford University; near entrance gate Comment
  JROH2611  Geranium dissectum John H. Thomas 1967-4-20 12705 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2619  Geranium dissectum John Hunter Thomas 1983-5-23 22242 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near shack side and low-flow crossing. Comment
  JROH2623  Geranium molle John H. Thomas 1955-5-6 5005 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC774606  Gilia achilleifolia subsp. achilleifolia Carl B. Wolf 1938-4-24 9401 San Mateo 1/4 mi sw San Francisquito Creek Bridge (Stanford University); , sw of San Francisquito Creek Bridge 60 Comment
  POM282276  Gilia achilleifolia subsp. multicaulis Lyman Benson 1935-5-5 6532 San Mateo Lake Searsville. 152 Comment
  JROH2026  Glycyrrhiza lepidota John Hunter Thomas 1983-7-7 22819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM202446  Gnaphalium californicum W. R. Dudley 1895-6-14 s.n. San Mateo Top of ridge near rocks, Searsville Comment
  SEINET11849355  Gnaphalium chilense M. T. Doutt 1931-1 424 San Mateo Portola Comment
  CAS-BOT-BC307439  Gnaphalium palustre Le Roy Abrams 1900-10-1 1006 San Mateo Searsville Lake Comment
  CAS-BOT-BC304507  Grindelia hirsutula Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC304508  Grindelia hirsutula W. R. Dudley 1894-1-28 s.n. San Mateo Santa Cruz Peninsula. Redwood Creek Comment
  CAS-BOT-BC304537  Grindelia hirsutula J. H. Thomas 1954-5-28 4243 San Mateo East facing slopes of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC304538  Grindelia hirsutula John Thomas Howell 1933-5-26 11348 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC304555  Grindelia hirsutula Phillip C. Wheeler 1965-7-8 s.n. San Mateo San Bruno Mountain. Along road on ridge Comment
  CAS-BOT-BC304562  Grindelia hirsutula David D. Keck 1932-5-25 1783 San Mateo Hills two miles west of Belmont Comment
  JEPS29417  Grindelia hirsutula L. R. Heckard 1961-7-16 1264 San Mateo across road from transmitting station KQED (near summit of San Bruno Mt.); San Bruno Mt. 335 Comment
  JEPS78925  Grindelia hirsutula Rimo Bacigalupi with G. T. Robbins 1954-6-18 4550 San Mateo road bank along Alpine Road 1/4 mi w Skyline Boulevard 701 Comment
  SEINET3139960  Grindelia hirsutula M. P. Dunford 1959-10-3 549 San Mateo Crystal Springs Lake, 1/4 mi N of jct of Hwy 5 (Skyline Blvd) & Ralston Avenue Comment
  SEINET10614592 Image available Grindelia hirsutula Wilhelm N. Suksdorf 1913-6-23 Suksdorf 279 San Mateo Crystal Springs Lake. Comment
  UC520408  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-8 3685 San Mateo exposed slope near sea Ft. Winfield Scott 35 Comment
  CAS-BOT-BC306532  Helenium bigelovii A. D. E. Elmer 1903-7-1 4968 San Mateo San Mateo Comment
  JROH829  Helenium puberulum John H. Thomas 1961-6-14 9542 San Mateo Jasper Ridge Biological Preserve, Stanford University; along stream below dam Comment
  JROH838  Helenium puberulum John Hunter Thomas 1977-6-16 18744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH841  Helenium puberulum John Hunter Thomas 1981-7-12 20696 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM288424  Helenium puberulum Lyman Benson 1937-7-15 8453 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  UC1192221  Helenium puberulum Malcolm A. Nobs and S. Galen Smith 1949-8-25 1576 San Mateo marsh s of Rockaway Beach Comment
  UC1537048  Helenium puberulum Gordon H. True Jr. 1937-7-23 805 San Mateo along Skyline Blvd. to Salada Beach Road 304 Comment
  CAS-BOT-BC309527  Helenium puberulum Walter Knight; Irja Knight; James B. Roof 1963-8-4 s.n. San Mateo San Bruno Mountain. April Brook Comment
  CAS-BOT-BC309544  Helenium puberulum A. D. E. Elmer 1903-7-1 4968 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  RSA0034607  Helenium puberulum I. L. Wiggins 1929-7-4 3791 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  JROH853  Helianthella californica var. californica John Hunter Thomas 1978-4-20 19081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH849  Helianthella californica var. californica J. S. McMurphy 1911-5-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1833  Helianthemum scoparium John H. Thomas 1961-6-14 9537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0012931  Helianthus californicus L. R. Abrams 1902-09 2989 San Mateo Menlo Park. Comment
  UCSC006543  Heliotropium curassavicum Randall Morgan 1988-6-4 1227 San Mateo N of lighthouse at Pigeon Point Comment
  POM369779  Heliotropium curassavicum var. oculatum E. A. Purer 1933-7-27 18190 San Mateo Two miles south of Pigeon Point Comment
  CAS-BOT-BC305931  Helminthotheca echioides Alice Eastwood 1919-9-1 s.n. San Mateo San Mateo Comment
  JROH1174  Helminthotheca echioides John Hunter Thomas 1982-7-22 21086 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate on Sand Hill Rd. Comment
  CAS-BOT-BC314918  Hemizonia congesta subsp. luzulifolia John H. Thomas 1958-11-22 7507 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto 182 Comment
  JEPS30897  Hemizonia congesta subsp. luzulifolia J. H. Thomas 1958-6-11 7228 San Mateo about 4.3 mi due e Belmont (near Crystal Springs Reservoir) 91 Comment
  JROH868  Hemizonia congesta subsp. luzulifolia John H. Thomas 1974-10-26 17635 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA27292  Hemizonia congesta subsp. luzulifolia Lewis S. Rose; 1941-10-24 41470 San Mateo Belmont 6 Comment
  UC193424  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo 2.2 km e Crystal Springs Lake (on San Mateo Creek); San Mateo Creek Comment
  UC990599  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1910-8-24 San Mateo Corte Madera Creek Comment
Read comments
Mar 12 2009
  SEINET7883351 Image available Hemizonia corymbosa L. S. Rose 1941-1 41361 San Mateo Moss Beach 16 Comment
  SEINET11848417  Hemizonia corymbosa E. A. Purer 1933-1 5339 San Mateo Pigeon Point Comment
  POM284877  Hemizonia corymbosa subsp. corymbosa Lyman Benson 1930-6-14 2161 San Mateo San Gregorio. 61 Comment
  SEINET7883478 Image available Hemizonia luzulifolia Lewis S. Rose 1941-1 41470 San Mateo Belmont 6 Comment
  SEINET8734814 Image available Hemizonia pungens L. S. Rose 1941-1 41463 San Mateo along the Bayshore Boulevard, San Mateo 3 Comment
  RSA136195  Hemizonia pungens subsp. maritima John H. Thomas 1954-5-28 4231 San Mateo Redwood City; near intersection of Bayshore and Main Street 0 Comment
  RSA176770  Heracleum maximum John H. Thomas 1961-5-5 9210 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  RSA128900  Heracleum maximum P. H. Raven 1950-6-3 2237 San Mateo Woods around San Andres Lake 122 Comment
  CAS-BOT-BC310243  Hesperevax sparsiflora var. sparsiflora Margaret A. Barry 1937-5-15 126 San Mateo Coal Mine Ridge Comment
  JROH890  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-4-23 20484 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM87769  Hesperevax sparsiflora var. sparsiflora L. R. Abrams 1902-5-4 2417 San Mateo Woodside Comment
  CAS-BOT-BC310246  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1974-4-11 17126 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  JROH4234  Hesperocnide tenella John Hunter Thomas 1992-4-23 25149 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  JROH4227  Hesperocnide tenella John H. Thomas 1964-4-11 10307 San Mateo Jasper Ridge Biological Preserve, Stanford University. Base of sandstone cliffs below dam Comment
  CAS-BOT-BC176209  Hesperolinon congestum L. R. Abrams 1910-5-7 s.n. San Mateo Crystal Springs Lake Comment
  JROH2936  Hesperolinon micranthum John Hunter Thomas 1983-6-29 22713 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC422604  Hesperomecon linearis A. D. E. Elmer 1903-5-1 4594 San Mateo San Bruno Hills Comment
  CAS-BOT-BC148463  Heteromeles arbutifolia John H. Thomas 1969-10-19 15485 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC148466  Heteromeles arbutifolia W. R. Dudley 1904-12-7 s.n. San Mateo East of Baker's Beach - Santa Cruz Mountain Peninsula Comment
  HSC67230  Heteromeles arbutifolia Richard Spjut 1980-5-15 6195 San Mateo Palo Alto Foothill Park along Steep Hollow Trail, 1/4 mi. from jct. with Wildhorse Valley 229 Comment
  JROH3680  Heteromeles arbutifolia John H. Thomas 1974-5-29 17406 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD37681  Heteromeles arbutifolia Edith A. Purer 1932-7-18 4002 San Mateo King's Mountain Comment
  CAS-BOT-BC420887  Heuchera micrantha var. diversifolia David D. Keck 1932-6-1 1794 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtns. Comment
  CAS-BOT-BC420894  Heuchera micrantha var. diversifolia Margaret A. Barry 1938-5-29 262 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  SEINET191646  Heuchera micrantha var. pacifica L. S. Rose 1941-7-2 41289 San Mateo Kings Mt 600 Comment
  CAS-BOT-BC319637  Hieracium albiflorum Josephine D. Randall 1907-7-28 83 San Mateo Iverson's near Peter's Creek, Santa Cruz Peninsula Comment
  UC897793  Hieracium albiflorum Lewis S. Rose 1939-6-16 39279 San Mateo Kings Mountain 670 Comment
  POM87688  Hierochloe occidentalis Le Roy Abrams 1902-1-7 2258 San Mateo Kings Mts. Comment
  CAS-BOT-BC55441  Hirschfeldia incana Ned Cahill 1974-5-30 331 San Mateo About 3 miles westward from Redwood City. Near the intersection of Canada and Edgewood Roads. Next to Edgewood Road. Comment
  CAS-BOT-BC55432  Hirschfeldia incana Ira L. Wiggins 1975-8-5 22174 San Mateo Bed of San Francisquito Creek, ca. 100 m above Pope Street bridge, both sides of Santa Clara--San Mateo line. Comment
  RSA134378  Hoita orbicularis L. S. Rose 1959-6-24 59031 San Mateo San Mateo, Black Mtn. Rd. near Skyline Blvd. 122 Comment
  CAS-BOT-BC289252  Holcus lanatus Walter Knight; Irja Knight; Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo Lower Part of Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC376132  Holcus lanatus Ricardo Villasenor, Jr. 1993-7-1 s.n. San Mateo San Francisco International Airport, west of Hwy. 101 Comment
  RSA85266  Holodiscus discolor D. D. Keck 1932-6-1 1795 San Mateo Above Searsville Lake, on road between Woodside and Skyline Blvd. Santa Cruz Mountains. Comment
  CAS-BOT-BC150062  Holodiscus discolor var. discolor Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon Comment
  POM198993  Hordeum brachyantherum A. D. E. Elmer 1903-06 4857 San Mateo Crystal Springs Lake. Comment
  RSA181232  Hordeum brachyantherum John H. Thomas 1963-5-20 10111 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC284675  Hordeum brachyantherum subsp. brachyantherum A. D. E. Elmer 1903-6-1 4851 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC284682  Hordeum brachyantherum subsp. brachyantherum John H. Thomas 1963-5-20 10111 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC289537  Hordeum brachyantherum subsp. californicum Elizabeth McClintock; Paul Reeberg 1988-6-6 s.n. San Mateo Below Guadalupe Canyon Parkway 1/4 mile east of Carter Street, San Bruno Mountains 91 Comment
  RSA107078  Hordeum brachyantherum subsp. californicum L. S. Rose 1956-5-7 56070 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  SEINET10598954  Hordeum californicum Delzie Demaree 1932-5-16 Demaree 9144 San Mateo Spring Valley Lakes. Comment
  JROH5242  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1980-5-20 19982 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5248  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1987-5-19 24300 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10831781 Image available Hordeum murinum Delzie Demaree 1932-3-27 Demaree 8957 San Mateo Moist bottoms. La Honda Comment
  CAS-BOT-BC173821  Hordeum murinum subsp. leporinum Peter Rubtzoff 1977-4-14 8944 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest. Comment
  CAS-BOT-BC289462  Hordeum murinum subsp. leporinum Javier Penalosa 1963-3-30 2741 San Mateo North of Randolph Drive at Hillside Blvd. in SSF, San Bruno Mountain 289 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
  RSA181230  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10123 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  RSA184912  Horkelia californica L. S. Rose 1966-8-20 66086 San Mateo San Bruno Mtn, Head of Colma Canyon. 206 Comment
  CAS-BOT-BC143922  Horkelia cuneata var. sericea W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  SD27818  Hypericum anagalloides Carl B. Wolf 1929-5-25 3729 San Mateo Pebble Beach south of Pescadero Comment
  CAS-BOT-BC411331  Hypericum canadense Vern Yadon 1994-7-8 s.n. San Mateo East of highway 1, common in two places, several acres. South of gazon Cr. and north of Ano Nuevo. Southern San Mateo County Comment
  CDA19135  Hypericum canariense R. Pummer 2001-7-16 PDR 064513 San Mateo San Francisco Peninsula; W of Hwy 1, near Gazos Creek between Pigeon Pt. and Ano Nuevo. 0 Comment
  JROH912  Hypochaeris glabra John H. Thomas 1961-4-29 9187 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC311480  Hypochaeris radicata 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-BC311483  Hypochaeris radicata John H. Thomas 1958-3-19 7057 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  JROH934  Hypochaeris radicata John Hunter Thomas 1981-10-25 20775 San Mateo Jasper Ridge Biological Preserve, Stanford University; on causeway Comment
  UC1598591  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  CAS-BOT-BC311486  Hypochaeris radicata Roxana S. Ferris 1917-10-19 727 San Mateo Crystal Springs Lakes Comment
  RSA14212  Hypochaeris radicata C. B. Wolf 1926-10-19 199 San Mateo East slope of La Honda Grade; Santa Cruz Mts. Comment
  RSA152265  Iris douglasiana John H. Thomas 1961-5-7 9304 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC306610  Iris douglasiana A. D. E. Elmer Jun 1903 4806 San Mateo San Mateo Comment
  UCD23298  Iris douglasiana Alan T. Whittemore 1976-5-29 120 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road, between L. San Andreas and Crystal Springs Lake. 100 Comment
  POM263704  Iris douglasiana R. C. Foster 1937-4-30 213 San Mateo Between San Bruno and the Skyline Boulevard Comment
  SEINET10966333  Iris douglasiana R. D. Sage 1992-1-6 Sage 13394 -2 San Mateo Collected along purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  CAS-BOT-BC133662  Iris longipetala Alice Eastwood 1918-5-4 s.n. San Mateo San Bruno Hills Comment
  HSC13892  Iris longipetala L. S. Rose 1968-3-26 68009 San Mateo S base of San Bruno Mtns., S San Francisco 30 Comment
  SBBG32267  Iris longipetala L. S. Rose 1968-3-26 68009 San Mateo S base of San Bruno Mts, S San Francisco 30 Comment
  RSA366831  Iris missouriensis Lewis S. Rose 1938-4-1 38111 San Mateo San Bruno Hills, above Visitacion Valley 61 Comment
  UC184381  Isocoma menziesii var. vernonioides Harriet A. Walker 1915-9-19 3833 San Mateo near Uncle Tom's Cabin; road to Burlingame Comment
  CAS-BOT-BC57729  Isoetes howellii W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC112605  Isolepis cernua Alice Eastwood; John Thomas Howell 1938-6-26 6066 San Mateo Arroyo de los Frijoles Comment
  JEPS91027  Isolepis cernua Dean W. Taylor 1991-5-20 11793 San Mateo Santa Cruz Mountains, Pescadero Creek 0.3 mi s ofrom the creek mouth, w of Highway 1 Pescadero Creek; Santa Cruz Mountains, Pescadero Creek 9 Comment
  UCD49902  Isolepis cernua Ira L. Wiggins; Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point, San Mateo County. Comment
  RSA366098  Isolepis cernua L. S. Rose 1948-12-3 48242 San Mateo Ocean Shore Blvd., 6 miles S of San Francisco County line. Comment
  CAS-BOT-BC340136  Jaumea carnosa LeRoy Abrams 1901-9-1 2224 San Mateo Cooley's Landing Comment
  SD37602  Jaumea carnosa Edith A. Purer 1933-7-27 5367 San Mateo Pigeon Point Comment
  POM312326  Jaumea carnosa Malcolm A. Nobs, S. Galen Smith 1949-8-26 1598 San Mateo Marshes at the mouth of Pescadero Creek. Comment
  CAS-BOT-BC109971  Juncus James McMurphy 1909-10-17 s.n. San Mateo San Gregorio. Lagoon. Comment
  RSA796693  Juncus bufonius Peter Rubtzoff 1977-6-21 9066 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET3877711  Juncus bufonius Kaye H. Thorne, J. Chandler 1986-7-25 4944 San Mateo Half Moon Bay, 2 mi S of Moss Beach at Dune Beach. Sand dunes and beach area adjacent to the Pacific Ocean.; 0 Comment
  JROH5659  Juncus bufonius var. bufonius John Rawlings 2014-5-23 1270 San Mateo Jasper Ridge Biological Preserve, Stanford University; up-slope from boat dock (aka Searsville Lab Landing). 104 Comment
  RSA368183  Juncus bufonius var. bufonius L. S. Rose 1932-6-26 32362 San Mateo Pilarcitos Lake. Comment
  CAS-BOT-BC227613  Juncus effusus subsp. pacificus Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. PG&E Marsh 15 Comment
  UCR244745  Juncus effusus var. pacificus Peter Rubtzoff, Roman Gankin 1975-9-11 8373 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC176166  Juncus lescurii Peter Rubtzoff 1976-6-30 8708 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  JROH4484  Juncus occidentalis John Hunter Thomas 1978-5-16 19215 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18498  Juncus patens Carl B. Wolf 1927-7-14 622 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  UC1101087  Juncus phaeocephalus Verne Grant and Herbert L. Mason 1946-8-28 13086 San Mateo entrance to San Francisco County prison Comment
  CAS-BOT-BC210051  Juncus phaeocephalus Peter Rubtzoff 1978-8-17 9261 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JEPS121402  Juncus usitatus John P. Krapek 2012-9-1 12 San Mateo Former Sharp Park Rifle Range, Pacifica Comment
  JROH4505  Juncus xiphioides John H. Thomas 1967-6-1 12960 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4040  Kickxia spuria Herbert Dengler 1958-9-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N.E. Nolan Ridge (the ridge N.E. of Corte Madera Cr.) by trail Comment
  CDA32415  Koeleria P. B. Kennedy 1928-5-2 San Mateo Hills east of Daly City 0 Comment
  JROH5269  Koeleria macrantha John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5272  Koeleria macrantha W. Lennihan 1990-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Escobar cutoff (Trail 15), left side of trail past exclosure. Comment
  POM190453  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  RSA100995  Koeleria macrantha G. Oberlander 1950-4-23 914 San Mateo Sweeney Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC273734  Koeleria pyramidata Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Ridge above Buckeye Canyon Comment
  JROH954  Lactuca virosa Toni Corelli 2006-8-8 315 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along causeway on trail 13, west of Leonard's bridge. 106 Comment
  CAS-BOT-BC341631  Lagophylla ramosissima Margaret A. Barry 1937-6-22 168 San Mateo Coal Mine Ridge Comment
  JROH957  Lagophylla ramosissima John H. Thomas 1958-5-10 7173 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM194884  Lagophylla ramosissima D. D. Keck, William M. Heusi 1929-10-24 500 San Mateo Summit of Coast Range, Alpine Creek Road. 686 Comment
  CAS-BOT-BC337880  Lapsana communis David D. Keck 1939-7-1 5007 San Mateo Santa Cruz Mountains, La Honda, along La Honda Creek Comment
  CAS-BOT-BC339079  Lasthenia californica A. A. Heller 1907-4-25 8465 San Mateo San Bruno Hills Comment
  CAS-BOT-BC346776  Lasthenia californica John H. Thomas 1955-5-6 5002 San Mateo San Mateo; Jasper Ridge about 3.5 miles southwest of Stanford University. Comment
  CHSC68146  Lasthenia californica A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills. Comment
  POM55213  Lasthenia californica A. D. E. Elmer 1903-04 4507 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339084  Lasthenia californica W. R. Dudley No date on label s.n. San Mateo Ocean View near San Francisco Comment
  CAS-BOT-BC339097  Lasthenia californica J. H. Thomas 1949-4-1 215 San Mateo Hills west of Redwood City Comment
  JROH978  Lasthenia californica subsp. californica John Hunter Thomas 1981-5-8 20563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11811269  Lasthenia chrysostoma Unknown 1933-1 49 San Mateo Jasper Ridges Comment
  JEPS24276  Lasthenia glabrata subsp. glabrata J. H. Thomas 1954-4-2 3793 San Mateo 1.5 mi e of center Redwood City Comment
  JROH973  Lasthenia gracilis John H. Thomas 1966-4-6 11552 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS28873  Lasthenia gracilis V. F. Hesse 1962-7-19 3166 San Mateo 6 Comment
  UCD133776  Lasthenia gracilis R. E. Dengler 1960-4-10 4 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  CAS-BOT-BC368183  Lasthenia minor V. F. Hesse 1959-4-16 2589 San Mateo Pigeon Point 7 Comment
  CAS-BOT-BC368186  Lasthenia minor Robert Robertson 1959-5-1 114 San Mateo Pescadero Beach. 9 Comment
  SFV3758  Lasthenia minor B. J. McCaskill 1954-5-8 295 San Mateo Moss Beach. On bank above beach. Comment
  UCSC007017  Lasthenia minor Randall Morgan 1988-6-5 1235 San Mateo Pescadero, Pigeon Point - Parking area N of Lighthouse Comment
  SEINET12153854  Lathyrus jepsonii Unknown 1933-1 70 San Mateo Alpine Rd Comment
  UC15323  Lathyrus jepsonii var. californicus Alice Eastwood Apr 1896 San Mateo Crystal Springs 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
  POM194716  Lathyrus littoralis H. M. Hall 1924-6-17 11957 San Mateo Salada Comment
  RSA177057  Lathyrus littoralis John H. Thomas 1964-5-9 10379 San Mateo Pescadero Beach. Comment
  POM19355  Lathyrus vestitus subsp. vestitus C. F. Baker 1902-5-10 801 San Mateo Kings Mountain. Comment
  POM19705  Lathyrus vestitus subsp. vestitus C. F. Baker 1903-4-6 1893 San Mateo San Bruno Hills. Comment
  UC202762  Lathyrus vestitus var. vestitus A. D. E. Elmer May 1903 4745 San Mateo San Mateo Comment
  POM298210  Layia chrysanthemoides D. D. Keck 1932-5-6 1488 San Mateo 4 miles west of Burlingame, on the Skyline Blvd. Comment
  CAS-BOT-BC321069  Layia gaillardioides Lewis S. Rose 1935-5-4 35149 San Mateo Burlingame Comment
  CAS-BOT-BC327468  Layia hieracioides John H. Thomas 1950-5-14 1871 San Mateo Ben Lomond Sand Hills, along Quail Hollow Road 152 Comment
  CAS-BOT-BC327485  Layia hieracioides Lewis S. Rose 1933-6-9 33218 San Mateo 3 mi W of San Bruno Comment
  JEPS89799  Layia hieracioides Dean W. Taylor 1989-4-18 10215 San Mateo ridgetop between Ox Hill and Scarper Peak (along fire road, Santa Cruz Mountains); Santa Cruz Mountains 472 Comment
  JROH6201  Layia hieracioides John Rawlings 2014-5-6 1230 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  CAS-BOT-BC327453  Layia hieracioides David D. Keck 1933-5-11 2299 San Mateo Near west base of Montara MOuntain Grade (south side of mountain) Comment
  CAS-BOT-BC327456  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo Skyline Boulevard, east of Salada, northern San Mateo County. Comment
  JEPS18168  Layia platyglossa Rimo Bacigalupi with Dempster, Robbins and Galen Smith 1956-5-15 5646 San Mateo about center of Montara Mountain 487 Comment
  JEPS90940  Layia platyglossa Dean W. Taylor 1989-4-18 10221 San Mateo ridgetop 0.4 mi n of Scarper Peak (Santa Cruz Mountains); Santa Cruz Mountains 502 Comment
  JROH995  Layia platyglossa John H. Thomas 1973-4-14 16565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC382219  Layia platyglossa David D. Keck 1932-5-6 1491 San Mateo East side of Crystal Springs Lake 60 Comment
  SEINET10879172  Layia platyglossa John T. Middleton 1937-4-10 Middleton s.n. San Mateo San Mateo Co., Ca. Comment
  RSA128806  Layia platyglossa subsp. platyglossa Peter H. Raven 1950-4-16 1780 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  CAS-BOT-BC527267  Lemna minuta Ira L. Wiggins 1980-9-1 22271 San Mateo Pool in San Francisquito Creek, ca. 250 m. upstream from Pope Street Bridge, Menlo Park Comment
  CAS-BOT-BC527272  Lemna minuta Carl B. Wolf 1929-4-29 3660 San Mateo 10 miles south of San Franciscot on Skyline Blvd. Comment
  CAS-BOT-BC221521  Lepechinia calycina Kellogg 1870-5-1 s.n. San Mateo Unspecified Comment
  CAS-BOT-BC221523  Lepechinia calycina Walter Knight; Irja Knight 1964-5-19 s.n. San Mateo San Bruno Mountain. Crocker Hills Comment
  CAS-BOT-BC221526  Lepechinia calycina Miss E. Cannon No date on label s.n. San Mateo Near Moss Beach Comment
  RSA409617  Lepechinia calycina E. S. Spalding 1923-8-8 s.n. San Mateo 8 mi. W of Redwood City, near Pielgas Tunnel. 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-BC89133  Lepidium didymum Ira L. Wiggins 1949-7-2 12198 San Mateo Pescadero Beach. Comment
  CAS-BOT-BC89137  Lepidium didymum Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-26 1594 San Mateo Marshes at the south of Pescadero Creek. Comment
  UCD115364  Lepidium didymum John H. Weiler; B. Hirano 1961-3-22 6132 San Mateo On a north slope near the edge of bluffs overlooking Moss Beach. Comment
  JROH1537  Lepidium latifolium John Rawlings, Ann Lambrecht 2009-7-3 0923 San Mateo Jasper Ridge Biological Preserve, Stanford University; north bank of Bear Creek 82 Comment
  CAS-BOT-BC12600  Lepidium nitidum Margaret A. Barry 1937-5-8 83 San Mateo On Coal Mine Ridge. 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
  JROH1542  Lepidium nitidum John H. Thomas 1967-6-1 12953 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1546  Lepidium nitidum John H. Thomas 1977-2-20 18468 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1555  Lepidium nitidum John Rawlings 2008-3-14 1032 San Mateo Jasper Ridge Biological Preserve, Stanford University. West Serpentine Chaparral 169 Comment
  CAS-BOT-BC12597  Lepidium nitidum Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountains. Above Hillside Boulevard, South San Francisco. Comment
  JROH1560  Lepidium strictum John Hunter Thomas 1978-4-25 19154 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5597  Lepidium strictum John Rawlings 2011-4-24 1086 San Mateo Jasper Ridge Biological Preserve, Stanford University; parking area for Ranger Bath on Rd. L. 108 Comment
  CAS-BOT-BC226595  Leptosiphon ambiguus John H. Thomas 1971-5-2 15815 San Mateo Near intersection of Canada Road and Edgewater [Edgewood] Road, about three miles westward from Redwood City 152 Comment
  POM282346  Leptosiphon ambiguus Lyman Benson 1931-3-15 2646 San Mateo Emerald Lake, Redwood City Comment
  CAS-BOT-BC226724  Leptosiphon androsaceus Adele Lewis Grant 1917-5-6 936 San Mateo Pescadero Comment
  JEPS58097  Leptosiphon androsaceus Adele Lewis Grant 936 San Mateo near Pescadero; Pebble Beach 3 Comment
  POM65146  Leptosiphon androsaceus L. R. Abrams 1901-05 1553 San Mateo Searsville Comment
  POM65224  Leptosiphon androsaceus C. F. Baker 1902-4-6 469 San Mateo Crystal Springs Lake. Comment
  RSA12467  Leptosiphon androsaceus Harry A. Dutton 1900-4-3 5827 San Mateo Woodside serpentine [?] Comment
  RSA6298  Leptosiphon androsaceus D. D. Keck 1932-5-6 1481 San Mateo Open hillside just west of Millbrae Highlands. 50 Comment
  RSA8491  Leptosiphon androsaceus L. S. Rose 1933-4-30 33135 San Mateo Redwood City Comment
  JROH3185  Leptosiphon liniflorus Elmer I. Applegate 1895-5-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  POM65858  Leptosiphon liniflorus L. R. Abrams 1901-05 1562 San Mateo Woodside Comment
  JROH3191  Leptosiphon parviflorus John Hunter Thomas 1981-4-23 20479 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC123030  Lessingia arachnoidea Charles Fuller Baker 1902-9-2 1548 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC325499  Lessingia arachnoidea W. Spence 1960-7-2 555 San Mateo Along Route 5, Crystal Springs Lake Comment
  JEPS20591  Lessingia arachnoidea John Thomas Howell 1926-10-9 2220 A San Mateo near Crystal Springs Lake 91 Comment
  JROH1015  Lessingia glandulifera var. glandulifera John Hunter Thomas 1977-6-16 18769 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7063128  Lessingia glandulifera var. pectinata A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. UTM Zone 10, 568418mE, 4140415mN. (WGS84/NAD83). 174 Comment
  CAS-BOT-BC324177  Lessingia hololeuca Ned Cahill 1974-8-26 370 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  CAS-BOT-BC324178  Lessingia hololeuca Ned Cahill 1974-10-8 381 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  CAS-BOT-BC324180  Lessingia hololeuca Ned Cahill 1974-8-26 372 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC324183  Lessingia hololeuca LeRoy Abrams 1902-9-21 2987 San Mateo Crystal Springs Comment
  CHSC98696  Lessingia hololeuca Samantha Mackey Hillaire 2007-7-17 1244 San Mateo Northwest corner of Edgewood Park, approximately 1.5 mile southeast of the southern end of Upper Crystal Springs reservoir. Southeast corner of the intersection of Edgewood Road and Canada Road. Between park fence and Edgewood Road, on sides of well-used park path through rocks. UTM 10 562177E, 414659N. 146 Comment
  JROH1030  Lessingia hololeuca Duncan M. Porter 1960-10-12 724 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UCD134052  Lessingia hololeuca Lewis S. Rose 1964-9-5 64072 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  CAS-BOT-BC324186  Lessingia hololeuca Josephine D. Randall 1907-7-15 s.n. San Mateo Near woodside, Santa Cruz Peninsula Comment
  JROH5970  Lessingia pectinata var. tenuipes John Rawlings 2017-6-5 2099 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing on verge of Road F through chaparral, 50 yards south of its intersection with Road E 152 Comment
  CAS-BOT-BC272288  Leymus X multiflorus W. R. Dudley 1909-10-10 s.n. San Mateo Just west of Belmont Sta., Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC272276  Leymus mollis J. H. Thomas 1963-5-11 10076 San Mateo Pescadero Beach Comment
  UC37061  Leymus triticoides unknown San Mateo San Mateo Comment
  RSA108327  Leymus triticoides Frank W. Gould 1941-5-10 1292 San Mateo 1 mile north of Pigeon Point lighthouse 15 Comment
  JROH2982  Ligustrum lucidum John Hunter Thomas 1978-5-23 19223 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC451669  Lilaea scilloides K. Hoppaugh 1929-5-8 164 San Mateo Portola Road near Palo Alto Comment
  CAS-BOT-BC130796  Lilium pardalinum Ira L. Wiggins 1929-7-4 3771 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Comment
  CAS-BOT-BC130791  Lilium pardalinum George Oberlander 1950-5-6 823 San Mateo San Mateo Creek Comment
  CAS-BOT-BC130793  Lilium pardalinum W. R. Dudley 1895-9-15 s.n. San Mateo Near Lumber Camp on El Corte de Madera Creek Comment
  JROH4688  Lilium pardalinum subsp. pardalinum John Hunter Thomas 1985-4-22 23541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA4898  Limnanthes douglasii subsp. ornduffii T. W. Heinrich 2004-4-21 s.n. San Mateo Adjacent to Highway 1 and immediately east of Half Moon Bay Airport, on Cabrillo Ranch property, Moss Beach. 0 Comment
  CDA42388  Limonium binervosum Whitney Thornton 2011-9-19 s.n. San Mateo Greco Island. Comment
  SEINET3358242 Image available Limonium californicum Lewis S. Rose 1942-1 42225 San Mateo Brisbane 1 Comment
  JEPS9660  Limosella acaulis Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9294 San Mateo Ano Nuevo Point Comment
  UC202814  Linanthus androsaceus A. D. E. Elmer Apr 1903 4746 San Mateo Comment
  JEPS82910  Linanthus liniflorus Roy E. Buck and Randall A. Morgan 1983-6-7 338 San Mateo in triangle of Edgewood and Canada Rds and Hwy. I-280 (s of a small watercourse); San Francisco Watershed Reserve 137 Comment
  HSC24042  Linum bienne Mary Katherine Wicksten 1971-6-24 114 San Mateo Huddart Park, near entrance Comment
  RSA187534  Linum usitatissimum John H. Thomas 1953-7-25 3517 B San Mateo Near San Mateo/Santa Cruz Co. border along Whitehouse Road. Comment
  CDA28966  Lithocarpus densiflorus D. G. Kelch 2009-6-9 9 .392 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
  CAS-BOT-BC36070  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-12-3 s.n. San Mateo Bear Gulch Road Comment
  CAS-BOT-BC36073  Lithocarpus densiflorus var. densiflorus George Oberlander 1949-8-20 334 San Mateo Southern boundary, Cahill Ridge Comment
  RSA17953  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1927-7-14 s.n. San Mateo La Honda Grade. Comment
  RSA212176  Lithocarpus densiflorus var. densiflorus L. S. Rose 1969-8-22 69098 San Mateo Skyline Blvd. & La Honda Road. 610 Comment
  JROH3886  Lithophragma affine John H. Thomas 1970-4-4 15543 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3888  Lithophragma affine John H. Thomas 1972-4-1 16048 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC430769  Lithophragma affine W. R. Dudley 1900-3-17 s.n. San Mateo Redwood stage road below Hookerville Comment
  JROH3894  Lithophragma heterophyllum John Hunter Thomas 1983-4-5 21319 San Mateo Jasper Ridge Biological Preserve, Stanford University. Path to redwood area 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
  UC570868  Lithophragma heterophyllum Herbert L. Mason 1927-4-23 3684 San Mateo along road between La Honda and Pescadero Creek; road between La Honda and Pescadero Creek Comment
  CAS-BOT-BC342307  Logfia filaginoides George Oberlander 1950-4-23 767 San Mateo San Francisco Watershed Reserve. Top of Cahill Ridge Comment
  CAS-BOT-BC342466  Logfia gallica John H. Thomas 1961-5-7 9265 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH740  Logfia gallica John Hunter Thomas 1981-5-8 20552 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA128341  Lolium perenne P. H. Raven 1950-6-3 2205 San Mateo along Millbrae Ave, Millbrae. Comment
  SJSU10974  Lomatium dasycarpum G. I. Tourtlotte 1968-3-16 San Mateo by Sawyer Ridge near Crystal Springs Reservoir Comment
  JROH260  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1967-6-1 12969 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC21554  Lomatium dasycarpum subsp. dasycarpum L. S. Rose 1965-4-22 65027 San Mateo San Bruno Mountain, S of parking lot 579 Comment
  JROH281  Lomatium macrocarpum John H. Thomas 1975-5-26 17915 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH275  Lomatium macrocarpum John H. Thomas 1963-3-20 10026 San Mateo Jasper Ridge Biological Preserve, Stanford University; serpentine area on north side of ridge near Westridge end Comment
  RSA212215  Lomatium macrocarpum L. S. Rose 1970-4-23 70031 San Mateo Black Mountain, Skyline Blvd, west of San Mateo 122 Comment
  UC1301122  Lomatium utriculatum Helen K. Sharsmith 1963-2-16 5133 San Mateo lower slopes San Bruno Mt. (above Daly City); San Francisco Bay Region, San Bruno Mt. 106 Comment
  SEINET7881745 Image available Lomatium utriculatum H. S. Yates 1935-1 5210 San Mateo 2 miles N. of Langley Hill Sec. 1 T. 7S. R.3W 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-BC240597  Lonicera hispidula A. D. E. Elmer 1903-6-1 4255 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC240607  Lonicera hispidula Margaret A. Barry 1937-6-24 182 San Mateo Coal Mine Ridge Comment
  JROH1660  Lonicera hispidula John Hunter Thomas 1981-5-25 20639 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1661  Lonicera hispidula John Hunter Thomas 1981-7-24 20732 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS85576  Lonicera hispidula var. vacillans Craig Dremann 1986-8-30 323 San Mateo e La Honda (along Cal. Highway 84 (Woodside-La Honda Road), mile marker 6.68, 150 ft w between road and creek) Comment
  POM46727  Lonicera hispidula var. vacillans A. D. E. Elmer 1903-07 4596 San Mateo Lake San Andreas. Comment
  CAS-BOT-BC243964  Lonicera involucrata var. ledebourii Roxana S. Ferris 1920-3-8 1762 San Mateo Crystal Springs - Half Moon Bay Road 426 Comment
  RSA51271  Lonicera involucrata var. ledebourii P. H. Raven 1950-4-30 1983 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  CAS-BOT-BC198596  Lotus R. F. Hoover 1964-9-10 9290 San Mateo Devil's Slide, between Pedro Point and Montara Comment
  JROH2050  Lotus corniculatus John Hunter Thomas 1988-6-2 24496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC157970  Lotus formosissimus Peter Rubtzoff; Roman Gankin 1975-5-21 7972 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon Comment
  UC15718  Lotus heermannii var. orbicularis F. T. Bioletti 1892-6-22 San Mateo Italian Cemetery, S. Fr. Comment
Read comments
Dec 1 2007
  POM276693  Lotus unifoliolatus Lyman Benson 1930-5-26 2142 San Mateo Stanford University. Lake Searsville. 152 Comment
  POM87746  Lotus wrangelianus L. R. Abrams 1902-5-11 2438 San Mateo Crystal Springs Lake. Comment
  JROH3078  Ludwigia peploides subsp. peploides John Hunter Thomas 1981-7-12 20706 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC60246  Lunaria annua E. W. Rust 1908-3-28 s.n. San Mateo Vicinity of Stanford University. Woodside Post Office. Comment
  UC201970  Lupinus albifrons A. D. E. Elmer May, 1903 4643 San Mateo Belmont Comment
  CAS-BOT-BC195785  Lupinus albifrons var. albifrons Charles Piper Smith 1922-4-22 3495 San Mateo Belmont, Half Moon Bay road Comment
  CAS-BOT-BC195805  Lupinus albifrons var. albifrons Charles Piper Smith 1948-4-23 48149 San Mateo Canada Road - 4 miles north of Woodside Comment
  RSA134045  Lupinus albifrons var. albifrons W. R. Dudley 1894-4-21 s.n. San Mateo 3 miles above town, ravine of San Mateo Creek. Comment
  CAS-BOT-BC196110  Lupinus albifrons var. collinus Walter Knight; Irja Knight 1964-3-15 580 San Mateo Colma Canyon Comment
  CAS-BOT-BC196111  Lupinus albifrons var. collinus Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo In Colma Canyon Comment
  CAS-BOT-BC196122  Lupinus albifrons var. collinus J. F. Emmel 1969-3-19 146 San Mateo Crest of San Bruno Mts., 2 air miles west of Sierra Point 304 Comment
  UC1084380  Lupinus albifrons var. collinus G. Thomas Robbins 1937-4-11 79 San Mateo Skyline Boulevard near County Jail San Francisco (San Francisco); s of San Francisco Comment
  CAS-BOT-BC8522  Lupinus apricus C. P. Smith 1908-3-30 1374 San Mateo Stanford University, field back of Cedro Cottage Comment
  JEPS85208  Lupinus arboreus Roy E. Buck, James A. West 1985-4-29 523 San Mateo along n side of Whitehouse Canyon Rd. just w of minor gulch, e of first curve in from CA Hwy 1 ca 0.7 air km ne Whitehouse Canyon Rd. - CA 1 jct (2.0 air km e of Franklin Point, Cascade Ranch); e of Franklin Point, Cascade Ranch 60 Comment
  SBBG25081  Lupinus arboreus D. Myrick 1966-6-11 1447 San Mateo near Pescadero along Hwy 1 S of San Francisco Comment
  SD39024  Lupinus arboreus Edith A. Purer 1932-7-18 4007 San Mateo Half Moon Bay, sand dunes Comment
  SEINET11548753  Lupinus arboreus Univ. of Calif. Bot. Gard. 1974-1 list 17 - 43 San Mateo San Mateo Co.;;;; Comment
  UCSC007761  Lupinus arboreus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC764739  Lupinus bicolor R. F. Hoover 1939-4-21 4054 San Mateo 2 mi s Colma; s of Colma Comment
  UC1048668  Lupinus bicolor Lewis S. Rose 1942-3-30 42006 San Mateo Mills Field 1 Comment
  UCD107181  Lupinus bicolor A. A. Heller 1907-4-20 8451 San Mateo near Lake Merced. Comment
  POM11073  Lupinus densiflorus var. palustris A. D. E. Elmer 1903-05 4847 San Mateo Lake San Andreas. Comment
  SEINET4853650  Lupinus lasiotropis Carl F. Baker Not on sheet 470 San Mateo Crystal Springs Lake. Comment
  POM87760  Lupinus latifolius subsp. latifolius L. R. Abrams 1902-5-11 2449 San Mateo San Mateo Canyon. Comment
  SD37898  Lupinus latifolius var. latifolius Marie Cummings 1933-5-18 3664 San Mateo Los Altos Comment
  UC865131  Lupinus microcarpus var. densiflorus Lewis S. Rose 1939-5-13 39112 San Mateo w Burlingame 60 Comment
  JROH2131  Lupinus nanus John H. Thomas 1976-4-30 18100 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH5565  Lupinus nanus John Rawlings 2013-4-19 1147 San Mateo Jasper Ridge Biological Preserve, Stanford University; south edge of Rd B along the northeast base of the powerline hillock 91 Comment
  SEINET7076097 Image available Lupinus nanus 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
  UC1303142  Lupinus nanus L. R. Abrams 1926-4-19 San Mateo junction of Los Trancos and San Francisquito Creek; jct of Los Trancos and San Francisquito Creek Comment
Read comments
Sep 26 2011
  SEINET12154596  Lupinus nanus M. T. Doutt 1931-1 s.n. San Mateo Skyline Blvd, W of Hillbrae Comment
  POM10646  Lupinus nanus subsp. latifolius C. F. Baker 1902-4-12 507 San Mateo San Gregorio Comment
  SEINET10490142  Lupinus nanus subsp. latifolius William R. Dudley 1894-4-11 Dudley UMO 67693 San Mateo Near menlo park reservoir. Comment
  POM296673  Lupinus polycarpus L. S. Rose 1942-3-30 42006 San Mateo Mills Field 2 Comment
  SEINET10486161  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-15 Dunn 2530 San Mateo Collected n of palo alto on walsh rd, 1.1 mi w of the corner of walsh rd and Altachul avenue. Comment
  UCD23305  Lupinus polyphyllus Alan T. Whittemore 1976-5-29 107 San Mateo Crystal Springs Canyon, about 1/2 mile below (East of) dam. 39 Comment
  SD37926  Lupinus succulentus Delzie Demaree 1932-4-9 2135 San Mateo Comment
  SEINET10837785  Lupinus succulentus var. succulentus Charles Piper Smith 1948-4-20 Smith 48111 San Mateo Hwy 1. San Pedro Point, south slope. Comment
  RSA414432  Lupinus tidestromii E. A. Purer 1932-7-18 4009 San Mateo Half Moon Bay Comment
  RSA3803  Lupinus vallicola subsp. apricus L. R. Abrams 1914-4-20 5128 San Mateo At the confluence of Los Troncos and San Francisquito creeks. Comment
  SEINET10490275  Lupinus vallicola subsp. apricus P. Wheeler 1966-5-1 Wheeler UMO 104189 San Mateo Crocker field industrial park. San bruno mtn. Large colony of blue flowered Lupines with many white flowered plants mixed in. Comment
  SJSU2300  Lupinus variicolor C. W. Sharsmith 1950-4-16 6629 San Mateo near Pescadero Point near Pescadero Comment
  UC1129743  Lupinus variicolor H. S. Yates 1935-2-3 5005 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quad. Comment
  UC82051  Lupinus variicolor Dr. E. B. Copeland 1903-6-3 3302 San Mateo Montara Point Comment
  RSA162483  Lupinus variicolor E. K. Balls 1963-5-22 12065 San Mateo 4.1 miles N of Moss Beach, along Hwy 1. 61 Comment
  SEINET10489106  Lupinus variicolor Edwin B. Copel 1903-6-3 Copeland 3301 San Mateo Montara point. Comment
  UC201933  Lupinus variicolor Miss Harriet A. Walker 1915-4-24 3808 San Mateo in field near road to Millbrae; near road to Millbrae Comment
  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-BC441269  Luzula macrantha Elmer I. Applegate 1895-3-9 753 San Mateo Near Woodside Comment
  JROH3367  Lysimachia arvensis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0034072  Lythrum Peter Rubtzoff 1987-8-26 9837 San Mateo San Bruno Mountain, Saddle area on N side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road. Comment
  CHSC28568  Lythrum hyssopifolia M. S. Taylor 1978-5-31 1874 San Mateo Ano Nuevo State Reserve. Comment
  UCR121566  Lythrum hyssopifolia George K. Helmkamp, E. A. Helmkamp 1999-6-28 4988 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  JROH2947  Lythrum hyssopifolia John Hunter Thomas 1977-6-16 18751 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  RSA0011328  Lythrum hyssopifolia Jane Turner, Francis M. Ball 1962-7-7 1081 San Mateo Highway 1, ca. 10 miles N of Santa Cruz County line. Comment
  RSA0011331  Lythrum hyssopifolia Josephine Randall 1907-6-29 244 San Mateo Kings Mt. Road; Santa Cruz Peninsula. Comment
  RSA210921  Madia Cherie L. Wetzel 1969-7-28 994 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC343909  Madia elegans Carl B. Wolf 1929-5-17 3713 San Mateo 1 mi. w. of Skyline Blvd. on Alpine Road 304 Comment
  UC204186  Madia elegans A. D. E. Elmer May 1903 4662 San Mateo Alpine School House Comment
  CAS-BOT-BC343918  Madia elegans John Thomas Howell 1926-10-9 2221 San Mateo Between Crystal Spring Lakes and San Mateo Comment
  POM177455  Madia elegans subsp. densifolia L. R. Abrams, I. L. Wiggins 1930-11-13 173 -A San Mateo Hillside above Crystal Springs Lake Comment
  RSA81525  Madia elegans subsp. densifolia James I. McMurphy 1907-8-8 s.n. San Mateo San Francisquito Creek; San Mateo - Santa Clara county line Comment
  SD27831  Madia elegans subsp. elegans Carl B. Wolf 1929-5-17 3713 San Mateo 1.0 mile west of Skyline Blvd. on Alpine Road. 305 Comment
  JROH1039  Madia exigua John H. Thomas 1958-5-10 7141 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1043  Madia exigua John H. Thomas 1967-5-31 12925 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC344492  Madia exigua David D. Keck 1932-5-11 1761 San Mateo Above Searsville Lake, La Honda road, east slope of Santa Cruz Mountains Comment
  CAS-BOT-BC343337  Madia gracilis David D. Keck 1932-6-1 1787 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mtns. 305 Comment
  JROH1067  Madia gracilis John H. Thomas 1958-5-10 7142 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1073  Madia gracilis John H. Thomas 1972-5-5 16080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1081  Madia gracilis John Hunter Thomas 1981-5-25 20621 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1095  Madia gracilis John Hunter Thomas 1992-5-5 25215 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  UC913110  Madia gracilis David D. Keck 1932-6-1 1788 San Mateo on La Honda road above Woodside; east slope of the Santa Cruz Mts. 305 Comment
  POM87787  Madia madioides L. R. Abrams 1902-5-20 2474 San Mateo Kings Mountain Comment
  CAS-BOT-BC345112  Madia sativa Philip C. Wheeler 1965-5-11 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine Comment
  CAS-BOT-BC345126  Madia sativa Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  JROH1103  Madia sativa John Hunter Thomas 1977-6-16 18763 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA209924  Madia sativa Ira L. Wiggins; 1929-7-4 3796 San Mateo Pescadero Beach Comment
  RSA176607  Madia sativa John H. Thomas 1961-8-27 9695 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
  UC523546  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi sw Pescadero (within 100 m of ocean) Comment
  CAS-BOT-BC345120  Madia sativa David D. Keck 1932-6-18 1981 San Mateo Skyline Blvd., at Langley Hill (S.W. of Stanford University) 600 Comment
  CAS-BOT-BC345121  Madia sativa James I. McMurphy 1906-9-24 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC345123  Madia sativa Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  RSA0036457  Madia sativa Peter Rubtzoff 1979-7-26 9300 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  RSA190268  Madia sativa D. D. Keck 1930-10-15 988 San Mateo SW of Woodside 457 Comment
  CAS-BOT-BC510723  Maianthemum dilatatum John H. Thomas 1961-5-7 9288 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CHSC27854  Maianthemum racemosum Susan Perkins 1978-3-24 13 San Mateo Stage Road, 4 mi s of San Gregorio, 2.5 mi n of Pescadero, ca. 8 mi sw of La Honda. 60 Comment
  JROH4694  Maianthemum racemosum James Newman 1952-4-21 15 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC512101  Maianthemum racemosum subsp. amplexicaule L. S. Rose 1927-3-25 s.n. San Mateo Spring Valley Lakes Comment
  CAS-BOT-BC512103  Maianthemum racemosum subsp. amplexicaule Elizabeth McClintock 1965-3-28 s.n. San Mateo Trillium Gulch with Trillium chloropetalum; San Bruno Mountain Comment
  CAS-BOT-BC512106  Maianthemum racemosum subsp. amplexicaule George Oberlander 1950-3-18 583 San Mateo Pilarcitos Canyon; San Francisco Watershed Reserve Comment
  CAS-BOT-BC512114  Maianthemum racemosum subsp. amplexicaule Margaret A. Barry 1937-5-15 131 San Mateo Woods on Coal Mine Ridge Comment
  RSA244377  Maianthemum racemosum subsp. amplexicaule C. W. Tilforth, John Dourley 1973-7-19 932 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  CHSC57106  Maianthemum stellatum Steven Triano 1988-5-24 208 San Mateo Along s side of Old La Honda Road ca 0.3 mi e of its jct. With La Honda Road. 365 Comment
  HSC23889  Maianthemum stellatum Mary Katherine Wicksten 1971-7-2 146 San Mateo Huddart Park at Miwok area 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
  SD39132  Maianthemum stellatum Edith A. Purer 1933-4-11 3634 San Mateo Between Pescadero and Pegeon Point. Comment
  POM223310  Malacothamnus arcuatus L. S. Rose 1935-6-11 s.n. San Mateo 3 miles W of Stanford University Comment
  JROH2963  Malacothamnus fasciculatus John Hunter Thomas 1977-6-7 18732 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7248026  Malva arborea D. R. Kaplan 1961-1 s.n. San Mateo 100 ft. East of Moss Beach Comment
  SEINET7247993  Malva nicaeensis Richard A. Dodge 1957-1 31 San Mateo Canyon in San Bruno City Limits, just south of Sneath Lane, between Junipero Serra Boulevard, and State Highway 5. 183 Comment
  RSA226758  Malva parviflora I. L. Wiggins 1969-5-25 21024 San Mateo On vacant lot at corner of Woodland Avenue and Pope Street, Menlo Park. Comment
  UCSB16369  Marah fabacea Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mounatins 152 Comment
  SEINET3816869  Matricaria discoidea Cynthia Taylor 1971-6-8 151 San Mateo Corner of watkins avenue and railroad tracks, Atherton 17 Comment
  CAS-BOT-BC422674  Meconella californica C. F. Baker 1902-4-6 457 San Mateo Crystal Springs Lake Comment
  JROH2167  Medicago polymorpha John H. Thomas 1973-4-14 16573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC269469  Melica californica David D. Keck 1933-5-11 2310 San Mateo Crystal Springs Lake Comment
  POM87694  Melica californica Le Roy Abrams 1902-5-4 2407 San Mateo Woodside. Comment
  CAS-BOT-BC281409  Melica imperfecta W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. S slope of Montara Mt Comment
  CAS-BOT-BC264255  Melica torreyana George Oberlander 1949-5-21 185 San Mateo South boundary, San Francisco Watershed Reserve Comment
  JROH2180  Melilotus albus John H. Thomas 1976-10-16 18418 San Mateo Jasper Ridge Biological Preserve, Stanford University; along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fireplace ruins downstream Comment
  JROH2189  Melilotus indicus John H. Thomas 1975-5-2 17857 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2195  Melilotus indicus John Hunter Thomas 1983-5-23 22240 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  JROH5933  Melilotus indicus M. Ray 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Whiskey Hill Gate Comment
  UC583160  Mentha canadensis Lewis S. Rose 1936-9-13 36730 San Mateo Granada 1 Comment
  JROH2812  Mentha pulegium John Hunter Thomas 1979-9-9 19725 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  JROH2809  Mentha pulegium John H. Thomas 1974-10-26 17627 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2818  Mentha pulegium John Hunter Thomas 1981-7-12 20702 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  JROH2827  Mentha suaveolens Ann Lambrecht 2007-8-15 30 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek 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
  UC1191375  Mesembryanthemum nodiflorum Malcolm A. Nobs 1948-12-20 721 San Mateo Redwood City, yacht harbor Redwood City Comment
  CAS-BOT-BC438138  Mesembryanthemum nodiflorum T. Winfield 1973-10-10 1222 San Mateo San Francisco Bay: Redwood City Comment
  CAS-BOT-BC438142  Mesembryanthemum nodiflorum Malcom A. Nobs 1948-12-20 721 San Mateo Redwood City yacht harbor Comment
  CAS-BOT-BC428898  Micranthes californica James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  SEINET12273456  Micromeria chamissonis Unknown 22 May 1?32 6169 San Mateo Los Francos Woods Comment
  CAS-BOT-BC348572  Micropus californicus var. californicus Ned Cahill 1974-4-18 134 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1122  Micropus californicus var. californicus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1126  Micropus californicus var. californicus John Hunter Thomas 1981-4-27 20507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1144  Microseris douglasii subsp. douglasii John H. Thomas 1971-4-10 15749 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1151  Microseris douglasii subsp. douglasii John Hunter Thomas 1992-5-5 25211 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC349024  Microseris douglasii subsp. douglasii K. L. Chambers 1952-5-11 404 San Mateo 3.2 mi. s. of junction of Canada Road (from Woodside to Crystal Springs Lake), with Ralston Avenue (Belmont Road) Comment
  CAS-BOT-BC349032  Microseris douglasii subsp. douglasii John H. Thomas 1969-4-24 14903 San Mateo Near Canada College, Redwood City, near Farm Hill Drive Comment
  RSA0059221  Microseris douglasii subsp. douglasii K. L. Chambers 1980-5-8 4620 San Mateo Canada Road, ca. 3.2 mi N. of Woodside, at junct. of Edgewood Rd., below I-280 Freeway. Comment
  CAS-BOT-BC349144  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 756 San Mateo Woodside Comment
  POM53405  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 755 San Mateo Woodside. Comment
  POM87985  Microseris douglasii subsp. tenella L. R. Abrams 1902-5-4 2425 San Mateo Woodside- Serpentine Hills Comment
  RSA116721  Microseris douglasii subsp. tenella Harry A. Dutton 1900-4-17 s.n. San Mateo Woodside Comment
  CAS-BOT-BC27842  Microseris heterocarpa Albert Kellogg s.n. San Mateo San Bruno Hills Comment
  JROH4070  Mimulus aurantiacus var. aurantiacus W. R. Dudley 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Ridge near Searsville Dam Comment
  JROH4071  Mimulus aurantiacus var. aurantiacus Richard L. Garber 1971-5-18 21 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA164764  Mimulus aurantiacus var. aurantiacus Wesley O. Griesel 1963-6-20 814 San Mateo Road from Palo Alto to State Hwy #5 Comment
  UC1063162  Mimulus grandis N. K. Carlson 1935-6-29 98 San Mateo 2 mi ne Pigeon Pt.; Santa Cruz Quadrangle Comment
  SEINET5561542  Mimulus guttatus H. S. Gentry 1931-1 93 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  SEINET12269870  Mimulus guttatus var. grandis Unknown 1932-1 9123 San Mateo Half Moon Bay 0 Comment
  JEPS22487  Minuartia douglasii C. E. Durrell 1909-4-21 San Mateo Burlingame Comment
  RSA107042  Minuartia douglasii L. S. Rose 1956-5-7 56067 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  CAS-BOT-BC214066  Monardella villosa Phillip C. Wheeler 1965-6-19 s.n. San Mateo Canyon east of quarry, San Bruno Mountain Comment
  CAS-BOT-BC220662  Monardella villosa Margaret A. Barry 1937-7-17 210 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC214061  Monardella villosa W. R. Dudley 1901-10-25 s.n. San Mateo Near summit road to Spanishtown, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC214063  Monardella villosa Lewis S. Rose 1965-6-15 65080 San Mateo South of parking lot near summit, San Bruno Mountain 365 Comment
  CHSC68000  Monardella villosa subsp. franciscana Alison Graff 1993-7-13 M- 52 San Mateo Devils Slide, in arroyos on inland side of Hwy. 1. Comment
  UC1314253  Monardella villosa subsp. franciscana C. W. O'Brien 1966-8-14 C- 66 -48 San Mateo Lake Pilarcitos 213 Comment
  JROH2834  Monardella villosa subsp. villosa John H. Thomas 1961-6-7 9529 San Mateo Jasper Ridge Biological Preserve, Stanford University; just above Searsville Lake Comment
  CAS-BOT-BC349587  Monolopia major W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Mountain Peninsula. Ravine of San Mateo Creek Comment
  CAS-BOT-BC445197  Montia parvifolia W. R. Dudley 1909-4-27 s.n. San Mateo Santa Cruz Mountain Peninsula. Pulpit Rock, San Mateo Canon [Canyon] Comment
  UC1057459  Muilla maritima G. Thomas Robbins 1937-4-11 100 San Mateo near Spring Valley Lakes, along road to Woodside Comment
  PGM4947  Myosotis discolor Vern Yadon 2002-5-2 San Mateo Swanton near San Mateo Co, Inland from 1st ridge Comment
  RSA159422  Myosotis latifolia John H. Thomas 1961-5-14 9370 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  UCD164185  Myosotis latifolia Peter Rubtzoff 1978-6-4 9203 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UCSB21182  Myosotis latifolia Simpson, C. 1967-3-21 San Mateo Butano Creek; 2.6 miles east of junction of Cloverdale Rd. and Canon Road 45 Comment
  HSC3724  Myosotis sylvatica P. A. Murphy 1965-4-15 50 San Mateo In Hatch's Woods, ca. 6 mi. from Half Moon Bay Comment
  RSA130858  Myrica californica R. C. Bacigalupi 1922-03 s.n. San Mateo Along coast near lagoon at Arroyo de los Frijoles. Comment
  JROH2691  Myriophyllum aquaticum John H. Thomas 1974-6-30 17464 San Mateo Jasper Ridge Biological Preserve, Stanford University. At dam. Comment
  CDA5316  Myriophyllum spicatum subsp. spicatum G. D. Barbe, Tom Palmer, M. Keffer, J. Reppas 1978-11-8 2468 San Mateo Cove west of dam, south end of San Andreas Lake. 0 Comment
  RSA128469  Nassella lepida J. T. Howell 1952-5-28 28316 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC260233  Nassella pulchra A. D. E. Elmer 1903-6-1 4712 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC260236  Nassella pulchra John H. Thomas 1971-5-2 15869 F San Mateo Near intersection of Canada Road and Edgewater Road, about 3 miles W from Redwood City 152 Comment
  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
  CAS-BOT-BC260230  Nassella pulchra W. R. Dudley 1900-5-18 s.n. San Mateo Grade on slope E of Salida Valley Comment
  CAS-BOT-BC60476  Nasturtium officinale Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountains. Lower part of Colma Canyon. Comment
  JROH3202  Navarretia heterodoxa John Hunter Thomas 1982-7-2 21047 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3199  Navarretia heterodoxa John H. Thomas 1963-6-23 10165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near exclosure on northern slope of ridge. Comment
  JROH3208  Navarretia squarrosa Richard L. Garber 1971-7-13 66 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA523345  Navarretia squarrosa Gordon H. True Jr. 1936-6-14 506 San Mateo Canyon south of Salada Beach 366 Comment
  POM65137  Navarretia squarrosa Stewart H. Burnham 1894-9-13 7228 San Mateo Outer Coast Range near La Honda Comment
  SEINET12279167  Navarretia squarrosa Unknown 1933-1 10468 San Mateo near Baden Station Comment
  JROH2745  Nemophila parviflora var. parviflora John H. Thomas 1972-4-1 16049 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  RSA152238  Nemophila parviflora var. parviflora I. L. Wiggins 1925-04 1670 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  UCR3596  Notholithocarpus densiflorus Wm. Horn Jr. 1963-8-26 630826- 01 San Mateo 7 mi. south of Skyline Blvd. - Half Moon Bay [Hwy 92] junction on Skyline (State Route 5) 610 Comment
  CAS-BOT-BC140426  Oemleria cerasiformis W. R. Dudley 1900-3-18 s.n. San Mateo Below San Andreas Dam Comment
  CAS-BOT-BC140449  Oemleria cerasiformis W. R. Dudley 1893-4-1 s.n. San Mateo Bear Gulch Road, Santa Cruz Mountains Comment
  UC1128077  Oemleria cerasiformis T. Tyrrell 1928-9-26 8 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 91 Comment
  HSC23991  Oenothera elata subsp. hookeri Mary Katherine Wicksten 1971-6-27 125 San Mateo Princeton, by Hwy. 1 Comment
  JROH2988  Olea europaea John H. Thomas 1967-5-10 12850 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2994  Olea europaea John Hunter Thomas 1983-4-28 21778 San Mateo Jasper Ridge Biological Preserve, Stanford University; near green shack Comment
  JEPS11666  Orobanche californica subsp. californica Mrs. Clara Hunt Sep 1908 San Mateo Farallone City. Comment
  UC1197449  Orobanche californica subsp. californica Dr. L. M. Newlon 1919-9-7 68 San Mateo Pillar Point, northern end of Half Moon Bay. Comment
  CAS-BOT-BC499694  Orobanche californica subsp. californica J. H. Thomas 1979-7-31 19684 San Mateo San Bruno Mountain, in northern part of county. Upper portion of Reservoir Hill, NE of Guadalupe Parkway Comment
  CAS-BOT-BC502963  Orobanche vallicola Burleigh H. Murray 1929-7-20 s.n. San Mateo Beresford, near San Mateo Comment
  RSA402011B  Orthocarpus erianthus Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  RSA523837  Orthocarpus erianthus Gordon H. True Jr. 1936-6-7 487 San Mateo 2 miles south of Pescadero. Along coast highway. 15 Comment
  POM126839  Orthocarpus erianthus var. roseus M. S. Baker 1904-05 s.n. San Mateo Ocean View. Comment
  POM204462  Orthocarpus floribundus J. T. Howell 1933-5-26 11346 San Mateo Crystal Springs Lake. Comment
  SEINET10829382  Orthocarpus floribundus Robert F. Hoover 1939-4-21 Hoover 4057 San Mateo 2 miles south of Colma. Comment
  RSA88573  Orthocarpus lithospermoides L. S. Rose 1954-5-17 54043 San Mateo Emerald Lake, E of Redwood City. 183 Comment
  POM286414  Orthocarpus purpurascens Lyman D. Benson 1930-5-1 2051 San Mateo Stanford Univ.; San Lorenzo mt. range. 122 Comment
  JROH298  Osmorhiza berteroi John Hunter Thomas 1986-5-1 23998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET244349  Osmorhiza chilensis David H. French 1968-4-12 2843 San Mateo Near Palo Alto coast (Pescadero) Road, 11.7 mi. E. of Pescadero. Comment
  JROH5644  Oxalis corniculata John Rawlings 2014-6-2 1256 San Mateo Jasper Ridge Biological Preserve, Stanford University. Caretaker's Residence 106 Comment
  JEPS79567  Oxalis oregana Edward Lee with A. Carter, E. Crum, and C. Belshaw 1936-1-26 1720 San Mateo e side Cahill Ridge (Kings Mt. Rd (2.6 mi out of woodside)) Comment
  RSA120752  Oxalis oregana S. S. Tillett, I. Sternback 1956-6-24 524 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  RSA130349  Oxalis oregana Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt. Comment
  UC311197  Oxalis oregana A. D. E. Elmer March, 1903 4532 San Mateo Portola Comment
  UC571122  Oxalis oregana Lucile Roush March 1928 San Mateo Butano creek Santa Cruz Mtns Comment
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Sep 6 2011
  RSA130344  Oxalis oregana W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula: Redwoods beyond Kings, Santa Cruz Range Comment
  SEINET10870216  Oxalis oregana R. D. Sage 1992-1-6 Sage 13395 -2 San Mateo Collected along purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  CAS-BOT-BC318249  Packera breweri W. R. Dudley 1893-5-27 s.n. San Mateo Near Summit Springs, Kings Mt. Comment
  CAS-BOT-BC253972  Parapholis incurva V. F. Hesse 1964-5-26 3210 San Mateo Near (S of) Pigeon Point 15 Comment
  UCD88635  Parapholis incurva Beecher Crampton 1962-6-11 6512 San Mateo Rockaway Beach, a suburb of Pacifica. Comment
  UCR242655  Parietaria judaica A. C. Sanders 2012-11-11 40516 San Mateo SF Bay Area, Daly City near Colma, between Junipero Serra Blvd. and San Pedro Rd. on Washington St. 56 Comment
  CAS-BOT-BC265661  Paspalum distichum A. D. E. Elmer 1901-7-1 2876 San Mateo Searsville Comment
  CAS-BOT-BC265663  Paspalum distichum Ira L. Wiggins 1980-8-29 22260 San Mateo San Francisquito Creek, 200 m upstream from Pope Street bridge, Menlo Park Comment
  JROH5344  Paspalum distichum L. R. Abrams 1914-7-1 5117 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JROH5351  Paspalum distichum John Rawlings 2011-9-4 1094 San Mateo Jasper Ridge Biological Preserve, Stanford University. At base of dam at trail terminus. 88 Comment
  UC157045  Paspalum distichum C. F. Baker 1902-10-20 1836 San Mateo Searsville; about the lake shore Comment
  SEINET10592940  Paspalum distichum Charles F. Baker 1902-10-20 Baker 1836 San Mateo Searsville. About the lake shore. Matted colonies from rootstocks which creep over the surface of mud. Comment
  JROH1403  Pectocarya pusilla John H. Thomas 1981-4-27 20499 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5551  Pectocarya pusilla John Rawlings 2013-4-16 1126 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension about 120 meters northwest from trail marker, east side of trail 136 Comment
  JEPS10360  Pedicularis densiflora W. L. Jepson 1922-3-19 9544 San Mateo Buri-Buri Ridge Comment
  JROH4101  Pedicularis densiflora John H. Thomas 1957-4-16 6663 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH4112  Pedicularis densiflora John H. Thomas 1973-4-14 16571 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4118  Pedicularis densiflora John Hunter Thomas 1982-1-3 20794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA209468  Pedicularis densiflora L. R. Abrams; 1914-3-1 5058 San Mateo Kings Mountain Road 152 Comment
  UC202754  Pedicularis densiflora A. D. E. Elmer 1903-5-1 4497 San Mateo Woodside Comment
  JEPS108120  Pedicularis densiflora Dean Kelch 1993-3-30 s. n. San Mateo 3 mi N of Edgewood Rd at southermost of 3 overlooks along I-280 N. NW side of overlook hill growing at edge of oak forest. 300 Comment
  JROH4109  Pedicularis densiflora Charles F. Cleland 1963-3-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near picnic area below Searsville Dam near Searsville Creek Comment
  JROH4116  Pedicularis densiflora John Hunter Thomas 1981-5-15 20641 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130343  Pedicularis densiflora H. A. Lewis 1908-4-30 s.n. San Mateo Los Trancos. Comment
  CAS-BOT-BC266664  Pedicularis dudleyi D. D. Davis No date on label s.n. San Mateo Santa Cruz Peninsula. Iverson's Peter's Creek Comment
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Jun 13 2020
  UC306599 Image available Pedicularis dudleyi A. D. E. Elmer June, 1903 4289 San Mateo Iverson's Place Pescadero Creek; Iverson's Place, Pescadero Creek, San Mateo Co. Comment
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Feb 28 2011
  POM203868  Pelargonium vitifolium J. T. Howell 1932-12-21 10864 San Mateo Near Pescadero. Comment
  CAS-BOT-BC207025  Pelargonium vitifolium Carl B. Wolf 1929-5-10 3704 San Mateo Pigeon Pt. S. of Pescadero 30 Comment
  JROH1159  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge Biological Preserve, Stanford University; to the north of the top of the ridge Comment
  CAS-BOT-BC330500  Pentachaeta bellidiflora Lewis S. Rose 1946-4-7 46026 San Mateo Skyline Blvd., above San Andreas Lake. 152 Comment
  CAS-BOT-BC330501  Pentachaeta bellidiflora Lewis S. Rose 1948-3-31 48032 San Mateo Skyline Blvd., above San Andreas Lake. 152 Comment
  JROH112  Pentagramma triangularis subsp. triangularis Lawrence J. Winship 1974-11-16 12 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH307  Perideridia kelloggii John H. Thomas 1962-7-15 9914 San Mateo Jasper Ridge Biological Preserve, Stanford University; near northern end of ridge Comment
  JROH310  Perideridia kelloggii John H. Thomas 1972-8-18 16148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132815  Perideridia kelloggii A. D. E. Elmer 1901-09 3411 San Mateo Crystal Springs Comment
  RSA430457  Perideridia kelloggii Lyman Benson 1974-02 8485 San Mateo La Honda Road 244 Comment
  SJSU7873  Persea americana C. A. Staicer 1976-11-24 San Mateo 91 Inglewood Lane, Atherton Comment
  CAS-BOT-BC413607  Persicaria amphibia A. D. E. Elmer 1903-7-1 4650 San Mateo San Pedro Comment
  CAS-BOT-BC413608  Persicaria amphibia A. D. E. Elmer 1903-7-1 4650 San Mateo San Pedro Comment
  CAS-BOT-BC413765  Persicaria lapathifolia W. R. Dudley 1897-10-11 s.n. San Mateo Santa Cruz Peninsula. Toward Pilar Pt. Comment
  CAS-BOT-BC419155  Persicaria maculosa Ira L. Wiggins 1980-8-29 22262 San Mateo Bed of San Francisquito Creek ca 75 m upstream from Pope Street bridge Comment
  CAS-BOT-BC419389  Persicaria punctata W. R. Dudley 1897-10-11 s.n. San Mateo Santa Cruz Peninsula. Toward PIlar Pt. Comment
  CAS-BOT-BC419391  Persicaria punctata George Oberlander 1949-8-20 387 San Mateo San Francisco Watershed Reserve. San Andreas Lake Comment
  CDA8457  Petasites frigidus var. palmatus T. C. Fuller 1960-4-2 4084 San Mateo Alpine Road, 0.8 mile east of Pescadero Road, 2.8 miles southeast of La Honda. 0 Comment
  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
  UC131689  Phacelia californica C. F. Baker 1902-5-1 690 San Mateo Crystal Springs Comment
  UC909960  Phacelia californica John Thomas Howell 1938-5-1 13771 San Mateo Colma Canyon Comment
  SEINET5566300  Phacelia californica H. S. Gentry 1931-1 102 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UC24324  Phacelia ciliata var. ciliata E. L. Greene May 1886 San Mateo Belmont Comment
  JROH2758  Phacelia distans John Rawlings 2008-4-23 1031 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just west of Rd C in small, grassy opening on slope uphill from blue metal bridge near beginning of Rd 19 that leaves Rd. C 30 meters south of the main San Francisquito Creek/Rd C bridge. 92 Comment
  RSA426083  Phacelia distans L. S. Rose 1939-4-13 39065 San Mateo San Mateo Canyon near Crystal Springs Lake. 61 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
  UC881192  Phacelia malvifolia John Thomas Howell 1938-5-1 13768 San Mateo Colma Canyon Comment
  JROH2764  Phacelia rattanii John H. Thomas 1961-6-7 9530 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC258935  Phalaris aquatica John H. Thomas 1968-12-18 14871 San Mateo About 0.9 miles inland from the coast along road toward Pescadero Comment
  CAS-BOT-BC259009  Phalaris californica W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Crystal Springs Comment
  JROH4292  Phoradendron serotinum subsp. tomentosum John H. Thomas 1972-4-18 16150 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC452027  Phyllospadix torreyi Duncan M. Porter 1960-5-12 s.n. San Mateo At the foot of Beach Street, Moss Beach. Comment
  CAS-BOT-BC452028  Phyllospadix torreyi Robert Setzer 1969-12-7 3854 San Mateo Pigeon Point, about 1/4 mile south from lighthouse. Comment
  RSA647542  Phyllospadix torreyi Judy Hansen 1969-6-29 s.n. San Mateo Pidgeon Point. Comment
  CAS-BOT-BC142179  Physocarpus capitatus A. D. E. Elmer 1903-7-1 4804 San Mateo Portola Comment
  POM139635  Physocarpus capitatus A. D. E. Elmer 1903-07 4804 San Mateo Portola. Comment
  SEINET3819247 Image available Physocarpus capitatus Lewis S. Rose 1939-5-5 39093 San Mateo San Mateo Canyon. 46 Comment
  SEINET10841226  Pickeringia montana Mary Susan Taylor 1978-8-30 Taylor 1867 San Mateo Comment
  SEINET11130514 Image available Pickeringia montana M. E. Springer 1946-9-1 739 San Mateo Road near Skyline Blvd. Comment
  RSA10337  Pickeringia montana var. montana H. A. Barker 1926-5-1 567 San Mateo Kings Mt. Comment
  RSA19297  Pickeringia montana var. montana L. S. Rose 1937-5-23 37321 San Mateo Belmont 91 Comment
  CDA33410  Pinus radiata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .178-B San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  UCSC007746  Pinus radiata Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  JROH4769  Piperia John Hunter Thomas 1991-4-4 25081 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-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-BC137320  Piperia elegans Phillip Wheeler 1965-8-16 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137321  Piperia elegans Elizabeth McClintock 1965-8-1 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JROH5966  Piperia transversa Alice Cummings, A. Lambrecht 2017-6-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E through chaparral 135 Comment
  JROH2204  Pisum sativum John H. Thomas 1967-4-28 12724 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC228127  Plagiobothrys chorisianus Walter & Irja Knight 1965-4-24 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC228128  Plagiobothrys chorisianus Alice Eastwood 1916-6-18 s.n. San Mateo San Bruno Hills Comment
  JEPS27368  Plagiobothrys chorisianus Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7628 San Mateo just e KRON television tower and station (below and se of end of paved ridge-top road, on Guadalupe Valley side of the summit of San Bruno Mountain); San Bruno Mountain 304 Comment
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Aug 22 2013
  UC1063805  Plagiobothrys chorisianus H. S. Yates 1935-5-8 5216 San Mateo 2 mi s Pescadero; Santa Cruz Quad. 60 Comment
  UC73677  Plagiobothrys chorisianus Harley P. Chandler 1901-3-15 806 San Mateo cliffs w Colma Comment
  UC78129  Plagiobothrys chorisianus T. S. Brandegee 1890-5-20 San Mateo Searsville Comment
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Nov 12 2007
  LA204230  Plagiobothrys chorisianus D. Keck; 1932-4-18 1435 San Mateo San Francisco Bay, Burlingame 2.0 Comment
  POM216313  Plagiobothrys chorisianus D. D. Keck 1933-5-11 2294 San Mateo Montara Light House and Radio Station Comment
  CAS-BOT-BC228159  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-4 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC228164  Plagiobothrys chorisianus var. chorisianus J. I. McMurphy 1906-5-8 s.n. San Mateo The Santa Cruz Mountain Peninsula. Pond by road between Woodside and Byrne's Store Comment
  POM287819  Plagiobothrys chorisianus var. chorisianus E. A. Purer 1933-7-27 5392 San Mateo 2 miles south of Pigeon Point. Comment
  JROH1422  Plagiobothrys nothofulvus John H. Thomas 1968-4-19 14291 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1428  Plagiobothrys nothofulvus John H. Thomas 1975-4-18 17785 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC24576  Plagiobothrys undulatus J. Burtt Davy Jun 21 1893-Jun 23 1893 1143 San Mateo Pilarcitos Lake and Canyon Pilarcitos Canyon, Pilarcitos Lake Comment
  JROH3106  Plantago coronopus John Rawlings,Ann Lambrecht 2013-4-30 1170 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Rd B vicinity of Dennis Martin site 79 Comment
  JROH3108  Plantago erecta John H. Thomas 1956-4-7 5616 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH3111  Plantago erecta John H. Thomas 1974-4-4 17084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3119  Plantago erecta John Hunter Thomas 1981-5-25 20643 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3123  Plantago erecta John Hunter Thomas 1986-5-1 23994 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM283960  Plantago erecta Lyman Benson 1931-4-26 2756 San Mateo Behind Stanford University. Santa Cruz mtn range, Corte Madera Creek. 213 Comment
  RSA283962  Plantago erecta Arthur L. Cohen 1935-4-21 631 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  UCR101664  Plantago lanceolata George K. Helmkamp, E. A. Helmkamp 1998-5-16 3739 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  UC1192027  Plantago major Malcolm A. Nobs and S. Galen Smith 1949-8-26 1584 San Mateo about 1 mi s Half Moon Bay Comment
  UCD164599  Plantago major Peter Rubtzoff; Roman Gankin 1975-9-11 8371 San Mateo San Bruno Mountains. Pond NW of and across old Guadalupe Road from 'Saddle' area (which is located on N side of Guadalupe Canyon Parkway, W of Radio Road junction). Comment
  POM61259  Plantago maritima E. B. Copeland 1903-6-5 3331 San Mateo Montara Point. Comment
  SD39917  Plantago maritima Edith A. Purer 1933-7-27 5364 San Mateo Near Pigeon Point. Comment
  JEPS24268  Plantago subnuda J. H. Thomas 1959-7-8 8016 San Mateo Pescadero Beach Comment
  CAS-BOT-BC92012  Platystemon californicus A. D. E. Elmer 1903-6-1 4853 San Mateo Crystal Springs Lake. Comment
  SEINET14400463  Plectritis congesta Unknown 1938-5-4 718 San Mateo San Mateo County Comment
  CAS-BOT-BC260964  Pleuropogon californicus var. californicus A. D. E. Elmer 1903-6-1 4848 San Mateo Milbrae Comment
  SEINET10611508  Pleuropogon californicus var. californicus Adolph D. E. Elmer Elmer 4848 San Mateo San Bruno Hills. Comment
  POM296661B  Poa annua Lyman Benson 1930-5-1 2061 San Mateo Stanford University. San Lorenzo Mt. Range. 91 Comment
  CAS-BOT-BC254542  Poa douglasii J. H. Thomas 1965-5-1 10637 San Mateo At Pescadero Beach Comment
  RSA135727  Poa howellii W. R. Dudley 1900-3-17 s.n. San Mateo Ravine north of Seal Cove. Comment
  CAS-BOT-BC255782  Poa infirma Walter Knight; Irja Knight 1967-5-16 s.n. San Mateo Randolph Ave., South San Francisco, San Bruno Mountain Comment
  RSA120384  Poa secunda Roxana S. Ferris 1921-5-20 2174 San Mateo Santa Cruz Mountain Peninsula; road over divide from Alpine Creek and Pescadero Creek 305 Comment
  CAS-BOT-BC243120  Poa secunda subsp. secunda W. R. Dudley 1900-3-16 s.n. San Mateo By Redwood stage road Comment
  CAS-BOT-BC243123  Poa secunda subsp. secunda L. R. A. 1902-5-4 2408 San Mateo Woodside Comment
  CAS-BOT-BC243126  Poa secunda subsp. secunda H. A. Dutton 1900-3-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH5701  Poa secunda subsp. secunda John Rawlings 2015-4-7 1350 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky ridge crest of Jasper Ridge 175 Comment
  JROH5424  Poa secunda subsp. secunda Herbert Dengler 1962-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N of Searsville Rocks 100 ft from S. F. Cr. Comment
  JROH2853  Pogogyne serpylloides H. J. Dengler 1961-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by trail, above old trough Comment
  UC107058  Polemonium carneum Mrs. Frances Howland 1901-3-30 San Mateo Lake Pelarcitos Comment
  UC203050  Polemonium carneum A. D. E. Elmer July, 1903 4771 San Mateo Pilarcitos Stone Dam Comment
  UC23974  Polemonium carneum C. T. Blake 1893-5-27 San Mateo Pilarcitos Reservoir Comment
  CDA34563  Polygala californica M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 873 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  JROH3219  Polygala californica Carol Zabel, Scott Lourie, Cindy Wilber 2001-6-2 43 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1101144  Polygonum lapathifolium Herbert L. Mason and Verne Grant 1946-8-28 13089 San Mateo s San Francisco (pond on Santa Cruz-Daly City Road #5) Comment
  CAS-BOT-BC109244  Polygonum paronychia T. R. Mertens 1963-10-5 7 San Mateo Pescadero. Comment
  CAS-BOT-BC419847  Polygonum patulum L. R. Abrams 1901-9-1 2213 San Mateo Cooley's Landing near Palo Alto Comment
  UC733135  Polygonum punctatum Roxana S. Ferris 1945-9-25 11107 San Mateo Pedro Point; State Hwy 1 Comment
  JROH83  Polypodium californicum John Hunter Thomas 1981-2-14 20229 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC76949  Polypodium californicum Elizabeth McClintock 1963-2-16 s.n. San Mateo San Bruno Mountain Comment
  JROH78  Polypodium californicum John H. Thomas 1970-1-1 15497 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  SEINET6166104  Polypodium californicum R. L. Oliver 1976-4-18 s.n. San Mateo San Mateo Memorial Park Comment
  UC766795  Polypodium calirhiza R. F. Hoover 1941-2-12 4759 San Mateo La Honda Creek above La Honda Comment
  UC440196  Polypodium scouleri R. L. Pendleton 1907-4-20 623 San Mateo Colma 152 Comment
  UC42915  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Comment
  UCD164005  Polypodium scouleri Peter Rubtzoff 1977-11-24 9143 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC233155  Polypogon interruptus C. F. Leitholt 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devil's [Canon] Canyon Comment
  JROH5437  Polypogon interruptus John Rawlings 2011-10-7 1087 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed downstream from the bridge across Road C. 85 Comment
  JROH5446  Polypogon monspeliensis John H. Thomas 1976-10-16 18410 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry delta in Searsville Lake at the mouth of Corte de Madera Creek. Comment
  JROH5448  Polypogon monspeliensis John Hunter Thomas 1977-6-16 18785 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry lake bed Comment
  RSA187461  Polypogon monspeliensis John H. Thomas 1965-12-19 11458 San Mateo Jasper Ridge Biological Experimental Area, 5 miles SW of Palo. Comment
  SD39924  Polypogon monspeliensis Edith A. Purer 1933-7-27 5370 San Mateo Sand dunes, Pigeon Point Comment
  UC1100377  Polypogon monspeliensis Malcolm A. Nobs and S. Galen Smith 1949-8-25 1563 San Mateo Sharp Park; marshes around Sharp Park Comment
  SEINET10593598  Polypogon monspeliensis Delzie Demaree 1932-5-22 Demaree 9167 San Mateo Mud Lakes Los Francos Woods. Mud Lakes Comment
  JROH4815  Polypogon viridis John Hunter Thomas 1980-5-20 19981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU4367  Polypogon viridis A. J. Cortopassi 1957-5-17 8 San Mateo Canyon Rd, Burlingame Comment
  SD27443  Polystichum aculeatum Kate O. Sessions 1879-1 San Mateo La Honda Comment
  CAS-BOT-BC72151  Polystichum californicum W. R. Dudley 1905-6-19 s.n. San Mateo near Camp on Pescadero Creek, Santa Cruz Mountains Comment
  JROH46  Polystichum dudleyi Lawrence J. Winship 1974-11-2 2 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC76604  Polystichum munitum Ira L. Wiggins 1928-4-14 2921 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC76612  Polystichum munitum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Base of Quarry 2 Comment
  CAS-BOT-BC76606  Polystichum munitum George Oberlander 1949-5-21 211 San Mateo San Francisco Watershed Reserve - Cahill Ridge Comment
  SEINET11714701  Polystichum munitum Unknown 1932-1 8922 San Mateo Kings Mt Comment
  UC4940  Populus alba J. Burtt Davy Jun 21 1893-Jun 23 1893 1128 San Mateo Millbrae Comment
  CAS-BOT-BC445246  Portulaca oleracea Fay Gilbert 1920-6-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Redwood City Comment
  CAS-BOT-BC267166  Potamogeton foliosus Ira L. Wiggins 1935-8-24 8159 A San Mateo In reservoir about 2 miles E of Half Moon Bay Comment
  UC519205  Potamogeton illinoensis N. L. Gardner 1933-9-24 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC453733  Potamogeton illinoensis W. Bryan Duncan 1924-7-1 s.n. San Mateo Felt Lake near Stanford University Comment
  CAS-BOT-BC453736  Potamogeton illinoensis Charles W. O'Brien 1964-8-31 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC454002  Potamogeton pectinatus W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. E. twin-pond near Mussel Rock. Comment
  JROH5517  Potamogeton pusillus John Hunter Thomas 1981-7-12 20710 San Mateo Jasper Ridge Biological Preserve, Stanford University. In lake along the shore Comment
  CAS-BOT-BC454050  Potamogeton pusillus subsp. pusillus W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Club House, Crystal Springs Reservoir Comment
  CAS-BOT-BC389769  Potentilla anserina R. D. Hennessey 1964-4-26 68 San Mateo Area in which Pilarcitos Creek empties into ocean Comment
  CAS-BOT-BC141929  Potentilla anserina subsp. pacifica Elizabeth McClintock; Carlyn Halde; Walter Knight 1963-6-23 s.n. San Mateo Lower part of Colma Canyon - San Bruno Mountains Comment
  UC1128137  Potentilla anserina subsp. pacifica H. S. Yates 1935-5-8 5221 San Mateo 2 mi sw Pescadero; Santa Cruz Quad. Comment
  POM215734  Potentilla anserina var. grandis D. D. Keck 1933-5-11 2291 San Mateo Half Moon Bay sand dunes, about 2 miles north of town. 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
  CAS-BOT-BC516346  Prosartes hookeri D. D. Davis 1903-5-2 s.n. San Mateo Near La Honda, Santa Cruz Peninsula Comment
  CAS-BOT-BC516357  Prosartes hookeri Ira L. Wiggins 1928-4-14 2912 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC516360  Prosartes hookeri W. R. Bentley 1957-5-11 83 San Mateo La Honda Road, 1/2 mile east of La Honda 152 Comment
  CAS-BOT-BC516361  Prosartes hookeri Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo, San Bruno Mountain Comment
  CAS-BOT-BC517389  Prosartes smithii D. D. Davis 1903-5-1 s.n. San Mateo Santa Cruz Peninsula, near summit La Honda Road Comment
  CAS-BOT-BC517390  Prosartes smithii W. R. Dudley 1905-6-18 s.n. San Mateo Santa Cruz Mountain Peninsula, Butano, Deer Park Comment
  CAS-BOT-BC517393  Prosartes smithii W. R. Dudley 1906-3-9 s.n. San Mateo Santa Cruz Mountain Peninsula, in bottom of Purisima Canyon, below Kings Mountain Comment
  CAS-BOT-BC517396  Prosartes smithii Ira L. Wiggins 1925-4-1 1677 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  SJSU9997  Prosartes smithii R. L. Roney 1974-4-27 San Mateo N side of La Honda Creek 457 Comment
  HSC24024  Prunella vulgaris subsp. lanceolata Mary Katherine Wicksten 1971-6-24 123 San Mateo Huddart Park, near entrance Comment
  CAS-BOT-BC158178  Prunus emarginata George Oberlander 1950-5-21 956 San Mateo Southern Cahill Ridge Comment
  CAS-BOT-BC154502  Prunus ilicifolia Fred Hemphill 1973-4-22 838 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  RSA454145  Prunus ilicifolia L. M. Booth 1932-10-29 2119 San Mateo San Bruno Mountain. 61 Comment
  CAS-BOT-BC154654  Prunus subcordata Margaret A. Barry 1938-4-21 248 San Mateo North slope on Los Trancos Creek near Coal Mine Ridge Comment
  JROH3749  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Zoo shack Comment
  RSA112479  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Near zoo, shack. At edge of Redwoods. Jasper Ridge. Comment
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Sep 19 2011
  CAS-BOT-BC156358  Prunus virginiana var. demissa J. I. McMurphy 1906-4-28 16 San Mateo [Corte de] Corte Madera Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC156360  Prunus virginiana var. demissa Margaret A. Barry 1937-5-15 113 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC356471  Pseudognaphalium beneolens Josephine D. Randall 1907-7-28 76 San Mateo Santa Cruz Peninsula. Black Mt. Road near Iverson's 335 Comment
  CAS-BOT-BC344867  Pseudognaphalium luteoalbum Peter Rubtzoff; Roman Gankin 1975-5-21 7978 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), San Bruno Mountains. Comment
  CAS-BOT-BC357130  Pseudognaphalium luteoalbum L. R. Abrams; I. L. Wiggins 1939-6-3 431 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC357133  Pseudognaphalium luteoalbum Ira L. Wiggins 1973-6-24 22027 San Mateo Gravelly bed of San Francisquito Creek, about 60 m above Pope Street bridge, along line between Santa Clara and San Mateo Counties 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
  UC1177367  Pseudognaphalium luteoalbum Peter H. Raven 1950-6-3 2273 San Mateo on the stand San Anderas Lake 121 Comment
  UCD135090  Pseudognaphalium luteoalbum J. D. Skoss 1948-7-25 44 San Mateo Montara. Comment
  JROH6200  Pseudognaphalium ramosissimum John Rawlings 2017-9-12 2295 San Mateo Jasper Ridge Biological Preserve, Stanford University; east bank of Bear Creek 82 Comment
  CAS-BOT-BC361570  Pseudognaphalium stramineum L. R. Abrams; I. L. Wiggins 1939-6-3 428 San Mateo Ano Nuevo Point Comment
  JEPS49081  Pseudognaphalium stramineum Lewis S. Rose 1966-8-6 66079 San Mateo Colma Canyon San Bruno Mountain, Colma Canyon 121 Comment
  UC1536874  Pseudognaphalium stramineum G. H. True Jr. 1936-6-7 489 San Mateo 2 mi s Pescadero 15 Comment
  CAS-BOT-BC361565  Pseudognaphalium stramineum W. R. Dudley 1896-11-15 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Spanish Town Comment
  CAS-BOT-BC361573  Pseudognaphalium stramineum Saichi Kawahara 1968-6-15 437 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  CAS-BOT-BC85916  Pseudotsuga menziesii A. D. E. Elmer 1903-4-1 4562 San Mateo King's Mt. Comment
  CAS-BOT-BC362025  Psilocarphus tenellus Lewis S. Rose 1933-5-3 33140 San Mateo Montara Comment
  CAS-BOT-BC362017  Psilocarphus tenellus R. S. Ferris 1925-5-1 s.n. San Mateo Selah Chamberlain Residence, Woodside Comment
  CAS-BOT-BC362018  Psilocarphus tenellus George Oberlander No date on label 918 San Mateo San Francisco Watershed Reserve Comment
  JROH17  Pteridium aquilinum var. pubescens John Hunter Thomas 1985-5-22 23677 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC474203  Pteridium aquilinum var. pubescens H. F. Copeland 1920-5-18 174 San Mateo King's Mt Comment
  CAS-BOT-BC421317  Pterostegia drymarioides John H. Thomas 1965-4-29 10625 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  UCD18553  Puccinellia lemmonii Roman Gankin 1950-7-15 27 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  CDA36071  Puccinellia maritima Michael Perlmutter 2011-6-15 San Mateo Foster City; Seal Slough. 0 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
  JROH2535  Quercus X jolonensis W. R. Dudley 1906-1-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by road to McDonough Ranch Comment
  CAS-BOT-BC104280  Quercus X morehus James B. Roof 1965-4-25 s.n. San Mateo Sant Bruno Mountain, On top of ridge, N side of road, toward Brisbane power lines Comment
  CAS-BOT-BC104278  Quercus X morehus W. R. Dudley 1910-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula, In a hollow W of the ridge road S of Muchados on the top of the Santa Cruz Mt., Marin Divide Comment
  SJSU16069  Quercus agrifolia Allen W. Jacobs 1936-12-8 32 San Mateo Found in Jasper Ridge. Comment
  UCD45132  Quercus agrifolia Edmond W. Holm 1993-10-20 s.n. San Mateo California, San Mateo Co.; Huddart Park, near Sequoia Picnic Area; on an east-facing slope, with redwoods and bay trees nearby; tree 15-18 ft. tal, with 2 trunks. Comment
  UCD45238  Quercus agrifolia Alan T. Whittemore 1976-5-29 103 San Mateo Intersection of Polyhemus Creek Road and Ticonderoga Street, San Mateo. Latitude: 37 31' N; Longitude: 122 20' W. Elevation: 460 ft. 140 Comment
  JROH2467  Quercus chrysolepis H. J. Dengler 1973-4-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; gully which drains into Searsville Lake Comment
  CAS-BOT-BC62302  Quercus chrysolepis Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Huckleberry Ridge Comment
  JROH2473  Quercus douglasii John Hunter Thomas 1981-4-27 20505 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12034334  Quercus douglasii Unknown 1929-1 7302 San Mateo Kings Mtn Comment
  CAS-BOT-BC389726  Quercus dumosa M. K. Wicksten 1971-6-15 63 San Mateo Unspecified Comment
  CAS-BOT-BC94277  Quercus durata John H. Thomas 1971-5-2 15858 San Mateo near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  SJSU1086  Quercus durata C. W. Sharsmith 1951-4-6 6638 San Mateo Woodside Hills, 3 mi E of Woodside 182 Comment
  JROH2481  Quercus durata var. durata John H. Thomas 1968-5-22 14458 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2489  Quercus durata var. durata John H. Thomas 1975-5-2 17851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105397  Quercus kelloggii Ira L. Wiggins 1925-4-1 1664 San Mateo On Kings Mountain Road three fourths of a mile above Woodside in the old cut over redwood (S. sempervirens) belt. Comment
  JROH2495  Quercus kelloggii W. R. Dudley 1893-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  UCD46676  Quercus kelloggii Ira L. Wiggins 1946-5-2 s.n. San Mateo La Honda road, above Searsville Reservoir, San Mateo County, California. 457 Comment
  CAS-BOT-BC62888  Quercus lobata W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Canyon Comment
  JROH2519  Quercus lobata John H. Thomas 1971-8-5 16011 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1083146  Quercus lobata Herbert L. Mason 1924-10-8 1109 San Mateo between Stanford University and Jasper Ridge Comment
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Sep 19 2011
  CAS-BOT-BC62896  Quercus lobata George Oberlander 1949-7-30 346 San Mateo Southern boundary Comment
  CAS-BOT-BC134779  Quercus wislizeni John Thomas Howell 1971-4-12 47599 San Mateo Butano State Park Comment
  CAS-BOT-BC134784  Quercus wislizeni W. R. Dudley 1898-1-1 s.n. San Mateo Santa Cruz Peninsula. On hill above little Butano Creek Comment
  JROH5864  Quercus wislizeni var. frutescens Toni Corelli 2003-2-21 257 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail c Comment
  CAS-BOT-BC362544  Rafinesquia californica Fred Hemphill 1973-5-14 803 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  UC9380  Ranunculus aquatilis var. capillaceus J. Burtt Davy Jun 21 1893-Jun 23 1893 1130 San Mateo Pilarcitos Lake and Canyon Comment
  UC729684  Ranunculus aquatilis var. capillaceus Carl B. Wolf 1929-4-29 3664 San Mateo small reservoir 1 mi s Portola Comment
  JEPS54964  Ranunculus californicus W. L. Jepson 1914-3-22 5730 San Mateo Redwood City Comment
  UC9411  Ranunculus californicus J. Burtt Davy 1895-4-20 1014 San Mateo Millbrae Comment
  CAS-BOT-BC378548  Ranunculus californicus var. californicus Ira L. Wiggins 1941-4-17 9719 San Mateo Roadside near junction of road to California Sanitarium and Woodside-Half Moon Bay road Comment
  CAS-BOT-BC378524  Ranunculus californicus var. californicus Margaret A. Barry 1937-5-8 56 San Mateo grassland on Coal Mine Ridge Comment
  CAS-BOT-BC378532  Ranunculus californicus var. californicus Elizabeth McClintock; Virginia Ryder 1964-2-16 s.n. San Mateo San Bruno Mountain, low growing on grassy slope above parking lot at top of mountain Comment
  CAS-BOT-BC378728  Ranunculus californicus var. cuneatus John H. Thomas 1955-3-5 4679 San Mateo coastal bluffs north of mouth of San Gregorio Creek 0000000000000000000000000 30 Comment
  JROH3490  Ranunculus hebecarpus John Hunter Thomas 1987-4-10 24187 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM150090  Ranunculus hebecarpus L. R. Abrams 1901-03 1164 San Mateo San Mateo Park Comment
  POM269264  Ranunculus muricatus Lyman Benson 1935-5-7 6546 San Mateo Santa Cruz Mt, San Francisco Bay, Stanford University 152 Comment
  UC827645  Ranunculus orthorhynchus var. bloomeri Lewis S. Rose 1937-4-30 37241 San Mateo Brisbane 6 Comment
  JROH1576  Raphanus sativus John H. Thomas 1969-6-4 15106 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC74338  Raphanus sativus Ned Cahill 1974-4-30 214 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  SEINET3292738 Image available Rhamnus californica Craig Davis 1960-11-24 D- 132 San Mateo Montara Mountain 335 Comment
  UC870785  Rhamnus californica F. A. Parton Apr 1908 San Mateo Jasper Ridge Santa Cruz Mountain Peninsula 91 Comment
  CAS-BOT-BC55903  Rhamnus crocea George Oberlander 1950-5-21 967 San Mateo Northern Cahill Ridge Comment
  POM222806  Rhamnus crocea J P Rose 1909-4-17 s.n. San Mateo Los Trancos Creek. 61 Comment
  CAS-BOT-BC55889  Rhamnus crocea R. Hoffough 1929-5-8 793 San Mateo Los Altos Hills Comment
  CAS-BOT-BC56665  Rhododendron occidentale William R. Dudley 1895-6-6 s.n. San Mateo Pescadero Cr. (near Iverson's) Comment
  CAS-BOT-BC437973  Ribes W. R. Dudley 1903-5-2 s.n. San Mateo Along fence near Iverson's Pescadero Creek, near Santa Cruz Co. Comment
  CAS-BOT-BC437976  Ribes Alice Eastwood 1922-5-30 11332 San Mateo Crystal Springs Lakes Comment
  CAS-BOT-BC92489  Ribes aureum var. gracillimum James McMurphy 1906-4-4 s.n. San Mateo Creek above Judge Allen's, Santa Cruz Mountains. Comment
  SEINET13942330 Image available Ribes californicum Lewis S. Rose 1950-1 50028 San Mateo Hills west of San Bruno, alt. ca. 500 ft. 152 Comment
  CAS-BOT-BC92997  Ribes californicum var. californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont. Comment
  CAS-BOT-BC93001  Ribes californicum var. californicum Walter Knight; Irja Knight 1965-3-21 963 San Mateo San Bruno Mountain. Near road at summit at head of Buckeye Canyon. Comment
  CAS-BOT-BC93009  Ribes californicum var. californicum J. I. McMurphy 1906-5-11 57 San Mateo Santa Cruz Mountain Peninsula. San Francisquito Creek Stanford University. Comment
  CAS-BOT-BC173087  Ribes divaricatum var. pubiflorum L. R. A. 1904-4-10 s.n. San Mateo East of Crystal Springs Reserv. Comment
  CAS-BOT-BC173088  Ribes divaricatum var. pubiflorum W. R. Dudley 1900-5-19 s.n. San Mateo Aove Week's Ranch by La Honda Road Comment
  RSA0025024  Ribes divaricatum var. pubiflorum Roxana S. Ferris 1920-4-24 1956 San Mateo Peters Creek. 2 miles above Bridge. 305 Comment
  RSA0025027  Ribes divaricatum var. pubiflorum A. D. E. Elmer 1903-05 4511 San Mateo Searsville Lake Comment
  CAS-BOT-BC173467  Ribes malvaceum A. D. E. Elmer 1903-3-1 535 San Mateo Portola Comment
  SEINET3558789 Image available Ribes malvaceum Lewis S. Rose 1933-3-2 33006 San Mateo Belmont. Comment
  RSA0021677  Ribes malvaceum G. Oberlander 1949-2-2 5 San Mateo Crest of Sweeney Ridge, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC212831  Ribes menziesii George Oberlander 1950-4-23 822 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC212845  Ribes menziesii W. & I. Knight 1963-6-24 s.n. San Mateo Quarry No. 4, San Bruno Mountain Comment
  CAS-BOT-BC212814  Ribes menziesii William Russel Dudley 1894-4-1 s.n. San Mateo Above St. Dennis Church, Searsville Comment
  RSA0021750  Ribes menziesii var. leptosmum John H. Thomas 1960-3-1 8538 San Mateo Near San Francisquito Creek. Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  CAS-BOT-BC144640  Ribes sanguineum var. glutinosum R. Bacigalupi 1922-3-1 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC144646  Ribes sanguineum var. glutinosum W. R. Dudley 1904-3-1 62 San Mateo Corte de Madera Creek, Santa Cruz Mts. Comment
  JROH2685  Ribes sanguineum var. glutinosum John Hunter Thomas 1985-4-25 23556 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  CAS-BOT-BC144643  Ribes sanguineum var. glutinosum W. R. Dudley 1896-2-16 s.n. San Mateo Glen Gloaming, branch of Pescadero and Mill Creek Comment
  RSA0019102  Ribes sanguineum var. glutinosum Carl B. Wolf 1927-2-26 227 San Mateo Halfway up the La Honda Grade. Comment
  RSA0019103  Ribes sanguineum var. glutinosum I. L. Wiggins 1929-3-23 3371 San Mateo Road to Mud Lake, near Stanford University Comment
  CAS-BOT-BC363084  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside Comment
  RSA176748  Rigiopappus leptocladus John H. Thomas 1963-5-15 10089 San Mateo Jasper Ridge Biological Experimental Area. 5 miles SW of Palo Alto Comment
  CAS-BOT-BC341023  Robinia pseudoacacia L. R. Abrams 1922-5-3 s.n. San Mateo Sutliff Garden, Stanford University Comment
  SJSU6410  Romanzoffia californica C. W. Sharsmith 1973-3-24 7935 San Mateo Pillarcitos Canyon, Crystal Springs area San Francisco Watershed Lands Comment
  JROH3768  Rosa John Hunter Thomas 1979-6-12 19595 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near stream below dam Comment
  CAS-BOT-BC147628  Rosa californica Phillip Wheeler 1965-6-7 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC389723  Rosa gymnocarpa M. K. Wicksten 1971-6-24 127 San Mateo Huddart Pk. Comment
  HSC23985  Rosa gymnocarpa Mary Katherine Wicksten 1971-6-24 110 San Mateo Huddart Park, near entrance Comment
  POM275418  Rosa gymnocarpa Lyman D. Benson 1931-5-10 2796 San Mateo Woodside. Santa Cruz Mtn Range. 427 Comment
  JROH3762  Rosa gymnocarpa var. gymnocarpa John Hunter Thomas 1982-9-12 21158 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC146799  Rosa multiflora Elizabeth McClintock; Paul Reeberg 1988-4-28 s.n. San Mateo Near Camp Silverspot Comment
  JROH3766  Rosa spithamea Toni Corelli 2007-10-31 342 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 1 just before 1st redwood grove, north side of trail, above San Francisquito Creek 80 Comment
  JROH3771  Rubus parviflorus John H. Thomas 1970-5-16 15632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA112364  Rubus spectabilis var. franciscanus W. R. Dudley 1900-3-16 s.n. San Mateo By bridge over Pilarcitos Rd. (Spanishtown and San Mateo). Comment
  CAS-BOT-BC157074  Rubus ursinus Walter Knight; Irja Knight 1964-5-30 595 San Mateo Colma Canyon Comment
  CAS-BOT-BC157089  Rubus ursinus J. Clausen 1948-5-9 2080 San Mateo Tunitas Creek road 121 Comment
  CAS-BOT-BC157090  Rubus ursinus J. Clausen 1948-5-9 2079 San Mateo Tunitas Creek road 121 Comment
  CAS-BOT-BC157091  Rubus ursinus Ned Cahill 1975-1-18 397 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC157093  Rubus ursinus W. B. Duncan 1924-5-25 s.n. San Mateo Moss Beach Comment
  CAS-BOT-BC157107  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CAS-BOT-BC157108  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  JROH3779  Rubus ursinus John H. Thomas 1977-4-29 18574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC204056  Rubus ursinus A. D. E. Elmer June, 1903 4664 San Mateo Crystal Springs Lake southern end Comment
  UCSC007775  Rubus ursinus Becky Hendricks, Shayne Coppedge 2012-5-18 s.n. San Mateo Ano Nuevo State Park Comment
  JROH3290  Rumex acetosella D. D. Davis 1903-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. West end of Searsville Ridge. Comment
  JROH3291  Rumex acetosella John H. Thomas 1974-5-19 17384 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1084377  Rumex acetosella G. Thomas Robbins 1937-4-11 74 San Mateo just s San Francisco (along Skyline Boulevard) Comment
  SD1201  Rumex acetosella U. S. Grant IV 1925-6-5 San Mateo San Mateo Comment
  JROH3304  Rumex conglomeratus John Hunter Thomas 1989-6-13 24768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5665  Rumex conglomeratus John Rawlings 2014-8-12 1273 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry San Francisquito Creek, between low flow crossing and downstream serpentine outcrop 79 Comment
  CAS-BOT-BC433999  Rumex salicifolius David D. Keck 1934-7-7 2968 San Mateo Pigeon Point Comment
  SD88535  Rumex salicifolius Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay 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
  POM16737  Rupertia physodes A. D. E. Elmer 1903-06 4270 San Mateo Crystal Springs Lake. Comment
  UCD81851  Rupertia physodes Alan T. Whittemore 1976-5-31 135 San Mateo Alpine Road, near east end of Corte Madera Creek Trail. Mixed evergreen forest. Sequoia in sheltered spots. Acer, Quercus and Alnus in open areas and by stream. Flowers past, originally purple. Trailing on forest floor. Foliage with somewhat unpleasant odor. Comment
  UC279590  Ruppia maritima W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  UC279599  Ruppia maritima W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  UCD163902  Ruta Peter Rubtzoff 1988-4-12 9901 San Mateo San Bruno Mountain, on east side of Summit Road (former Radio Road), ca. 1 mile from San Bruno Mtn. Park entrance. Comment
  CDA38605  Rytidosperma caespitosum Eric Wrubel, Joe Woods 2011-7-5 NPS 19 San Mateo Pacifica. Golden Gate National Recreation Area, Sweeney Ridge Trail, 1/2 mile south of Vista College. 0 Comment
  JROH1714  Sagina apetala John H. Thomas 1966-4-6 11548 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA159420  Sagina apetala John H. Thomas 1961-5-14 9371 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  SJSU15762  Sagina decumbens subsp. occidentalis Toni Corelli 2010-5-13 612 San Mateo Pedro Point Headlands, Pacifica CA; off of South Ridge Road Trail in rocky ridge, scrub, native grassland area 180 Comment
  UC1076484  Sagina decumbens subsp. occidentalis Herbert L. Mason 1927-4-23 3685 San Mateo outcrop on rd. from La Honda to Pescadero Creek Comment
  POM163965  Sagina maxima subsp. crassicaulis Copeland 1903-6-5 3329 San Mateo Montara Point. Comment
  SEINET11941059  Salicornia depressa Unknown 1933-1 10460 San Mateo Shanty Town, near Belmont, San Fransisco Bay Comment
  POM216545  Salicornia virginica D. D. Keck 1931-9-27 1266 San Mateo Dumbarton Bridge. Comment
  JROH3847  Salix exigua var. hindsiana John Hunter Thomas 1981-4-23 20494 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  SBBG33940  Salix exigua var. hindsiana L. S. Rose 1965-3-8 65003 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC104050  Salix hindsiana Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC104051  Salix hindsiana Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 121 Comment
  POM222896  Salix laevigata S. S. Berry 1909-2-27 s.n. San Mateo Near Adalanto Villa. 46 Comment
  HSC19979  Salix lasiandra L. S. Rose 1965-3-16 65007 San Mateo Searsville Lake 122 Comment
  UC492365  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1932-7-4 640 San Mateo 4/10 mi e. Pescadero (Butano Creek Rd.) Comment
  CAS-BOT-BC125368  Salix lasiandra var. lasiandra W. R. Dudley 1904-3-26 s.n. San Mateo San Gregorio Comment
  CAS-BOT-BC125372  Salix lasiandra var. lasiandra W. R. Dudley 1893-1-1 s.n. San Mateo Hill north of South San Francisco Comment
  CAS-BOT-BC107129  Salix lasiolepis A. D. E. Elmer 1903-3-1 4875 San Mateo Searsville Lake Comment
  CAS-BOT-BC107135  Salix lasiolepis Walther 1919-2-23 s.n. San Mateo Woodside Comment
  CAS-BOT-BC107140  Salix lasiolepis Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC107141  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo Near junction of San Francisquito and Los Trancos Creeks, about 2 miles from Stanford University Comment
  CAS-BOT-BC166954  Salix lasiolepis Peter Rubtzoff 1976-3-14 8445 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  OBI9820  Salix lasiolepis Lewis S. Rose 1965-3-8 65004 San Mateo Searsville Lake 122 Comment
  RSA119044  Salix lasiolepis L. S. Rose 1958-3-19 58012 San Mateo Princeton. 6 Comment
  SD60177  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo Near junction of San Francisquito and Los Trancos creeks, about 2 miles from Stanford University Comment
  UCR279843  Salix lasiolepis Peter Rubtzoff 1976-3-14 8445 San Mateo San Francisco Bay Region, San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; upper part of East Fork Colma Creek Canyon 220 Comment
  UCR279849  Salix lasiolepis Peter Rubtzoff 1976-3-14 8446 San Mateo San Francisco Bay Region, San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; upper part of East Fork Colma Creek Canyon 220 Comment
  RSA184900  Salix lucida subsp. lasiandra L. S. Rose 1965-3-16 65007 San Mateo Searsville Lake. 122 Comment
  SBBG33942  Salix lucida subsp. lasiandra L. S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC126490  Salix sitchensis A. D. E. Elmer 1903-4-1 4874 San Mateo Portola Comment
  CAS-BOT-BC126493  Salix sitchensis C. F. B. 1902-3-18 390 San Mateo [King's] Kings Mountain Comment
  CAS-BOT-BC126496  Salix sitchensis Javier Penalosa 1963-2-23 2640 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC126511  Salix sitchensis A. D. E. Elmer 1903-3-1 4874 San Mateo Portola Comment
  POM176877  Salix sitchensis W. R. Dudley 1900-3-17 s.n. San Mateo Below Pilar Point. Santa Cruz Peninsula. Comment
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Feb 2 2014
  CAS-BOT-BC126504  Salix sitchensis W. R. Dudley 1903-5-2 s.n. San Mateo Bottom land near Upper Shingle Mill on Alpine Cr. above S.E. Haskins Ridge Grade to Pescadero Comment
  UCD99304  Salsola soda T. C. Fuller 1968-9-25 17640 San Mateo w. end of Dumbarton Bridge, Menlo Park. Comment
  SEINET7081588  Salvia columbariae A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. Coordinate Datum: NAD27. UTM Zone 10, 568517mE, 4140222mN. Comment
  UC1046499  Salvia spathacea R. Bacigalupi, L. Constance, Ritchie and Sarah Bell 1951-3-25 3204 San Mateo near San Francisco (Colma Canyon); Colma Canyon 137 Comment
  UC1327249  Salvia spathacea John T. Doyen 1966-3-28 32 San Mateo San Bruno Mountains; near Radio Towers at top Comment
  UC138837  Salvia spathacea C. F. Baker 1903-4-6 1878 San Mateo San Bruno Hills San Francisco Comment
  RSA218031  Salvia spathacea Walter Knight, I. Knight 1965-3-15 1218 San Mateo Colma Canyon. San Bruno Mountain. Comment
  RSA120031  Sambucus mexicana Paul R. Hichborn 1920-4-22 s.n. San Mateo Tasper Ridge Comment
  CAS-BOT-BC246017  Sambucus nigra subsp. caerulea Lewis S. Rose 1966-8-15 66084 San Mateo Pulgas Water Temple 91 Comment
  CAS-BOT-BC246025  Sambucus nigra subsp. caerulea H. A. Dutton 1900-4-17 s.n. San Mateo Jasper S. side, Santa Cruz Peninsula Comment
  JROH1669  Sambucus nigra subsp. caerulea John H. Thomas 1963-6-23 10171 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1672  Sambucus nigra subsp. caerulea John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG32342  Sambucus nigra subsp. caerulea L. S. Rose 1966-8-15 San Mateo Pulgas Water Temple 91 Comment
  CAS-BOT-BC236465  Sambucus racemosa subsp. racemosa J. H. Thomas 1949-6-4 596 San Mateo 1 mile E. of Pescadero Comment
  CAS-BOT-BC236452  Sambucus racemosa subsp. racemosa Nancy Kittle 1981-5-15 067 San Mateo 1 mile west of junction of Highway 280 with Sandhill Road 50 Comment
  OBI8785  Sanicula arctopoides Lewis S. Rose 1961-4-5 61030 San Mateo San Bruno Mts. 366 Comment
  UCD127909  Sanicula arctopoides Lewis S. Rose 1965-3-25 65012 San Mateo San Bruno Mountains, north end. 121 Comment
  JROH320  Sanicula bipinnatifida H. A. Borthwick 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; fields near Searsville Lake Comment
  RSA40105  Sanicula bipinnatifida L. S. Rose 1948-3-31 48033 San Mateo Skyline Blvd. above San Andreas Lake. 152 Comment
  CHSC56963  Sanicula crassicaulis Steven Triano 1988-5-24 181 San Mateo Along w side of Old La Honda Road ca 0.6 mi s of Portola Road and 3.8 mi s of Woodside. 201 Comment
  CAS-BOT-BC166811  Sanicula crassicaulis Peter Rubtzoff 1976-6-13 8638 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; in upper part of East Fork Colma Creek canyon. Comment
  UCSC004966  Sanicula hoffmannii Randall Morgan 1988-6-5 1237 San Mateo Portola State Beach campground Comment
  CHSC45763  Satureja douglasii Steven Triano 1988-5-24 198 San Mateo Ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  UC1601281  Satureja douglasii Ira L. Wiggins 1929-7-4 3778 San Mateo 4 mi w La Honda (on hill road to Pescadero Beach) Comment
  POM142249  Saxifraga californica C. F. Baker 1902-4-6 465 San Mateo Crystal Springs Lake. Comment
  RSA790260  Schedonorus arundinaceus Peter Rubtzoff 1977-6-21 9060 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction northwest of Fog Forest. Comment
  JROH4416  Schoenoplectus acutus var. occidentalis John Hunter Thomas 1986-4-24 23979 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along west side of Searsville Lake between boat ramp and "old beach." Comment
  CAS-BOT-BC111414  Schoenoplectus acutus var. occidentalis Elizabeth McClintock; P. Reeberg 1989-8-19 s.n. San Mateo P. G. & E. Marsh, San Bruno Mountains. Comment
  CAS-BOT-BC227874  Schoenoplectus acutus var. occidentalis Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. PG&E Marsh 4 Comment
  CAS-BOT-BC111604  Schoenoplectus californicus George Thomas Oberlander 1949-7-30 322 San Mateo Marsh, San Andreas Lake Comment
  RSA366089  Schoenoplectus maritimus L. S. Rose 1935-8-13 35565 San Mateo Salada 3 Comment
  CAS-BOT-BC111779  Schoenoplectus pungens var. badius Alice S. Mulford 1945-7-17 s.n. San Mateo Moss Beach Comment
  UC840693  Scirpus cernuus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point Comment
  UCD23292  Scirpus microcarpus Alan T. Whittemore 1976-5-29 110 San Mateo Crystal Springs Canyon, about 1/2 mile below (East of) dam. 39 Comment
  UC841375  Scirpus microcarpus C. B. Carter 1928-11-11 San Mateo La Honda Canyon Comment
  UCD141269  Scirpus microcarpus Herbert L. Mason; Verne Grant 1946-8-28 13093 San Mateo one mile west of San Bruno between Santa Cruz and Daly City on Highway 5. Comment
  UC1057748  Scoliopus bigelovii F. A. Pitelka 1946-4-13 San Mateo Pilarcitos Lake Comment
  UC75028  Scoliopus bigelovii C. F. Baker 1902-3-18 322 San Mateo King's Mt. Comment
  CAS-BOT-BC519012  Scoliopus bigelovii David D. Keck 1932-2-12 1359 San Mateo La Honda road, east slope of Coast Range above Searsville Lake 304 Comment
  CAS-BOT-BC519020  Scoliopus bigelovii Alice Eastwood 1933-4-30 s. n. San Mateo Lake Pilarcitos on road out Comment
  CAS-BOT-BC519021  Scoliopus bigelovii C. F. Baker 1902-3-18 322 San Mateo King's Mountain Comment
  JEPS62100  Scoliopus bigelovii Elsa Kraeger 1926-2-21 San Mateo n. La Honda Comment
  RSA299412  Scoliopus bigelovii Inez Smith 1915-03 s.n. San Mateo Hillsboro. Comment
  CAS-BOT-BC363223  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde prop., 140 Eleanor Dr., Woodside Comment
  JROH5460  Scribneria bolanderi John Rawlings 2007-3-23 1034 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road F, Serpentine, about 50 m. nw of the oak island. 178 Comment
  JROH5784  Scribneria bolanderi John Rawlings 2016-5-3 1778 San Mateo Jasper Ridge Biological Preserve, Stanford University; bare, rocky, sepentinite about 30 yards west of Rd F in Area C 177 Comment
  CAS-BOT-BC376418  Scrophulariaceae Greg de Nevers 2001-9-26 12630 San Mateo Palo Alto. Comment
  UCR26155  Sedum spathulifolium G. R. Ballmer 1982-4-24 s.n. San Mateo San Bruno Mtn near Daly City. 370 Comment
  CAS-BOT-BC59272  Sedum spathulifolium W. R. Dudley 1897-6-4 s.n. San Mateo On rocks by Canyon Camp, W. Waddell Cr. 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-BC363397  Senecio aronicoides Fred Hemphill 1973-5-6 784 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC363398  Senecio aronicoides Fred Hemphill 1973-4-22 827 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1217  Senecio aronicoides John H. Thomas 1958-5-10 7163 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1222  Senecio aronicoides John Hunter Thomas 1986-5-17 24053 San Mateo Jasper Ridge Biological Preserve, Stanford University; creek trail downstream from Rattlesnake Rock Comment
  UC311548  Senecio aronicoides A. D. E. Elmer May 1903 4508 San Mateo San Bruno Hills Comment
  CAS-BOT-BC363384  Senecio aronicoides W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. By upper road, San Mateo Ravine Comment
  UC1219871  Senecio glomeratus J. H. Thomas 1961-5-7 9275 San Mateo San Bruno Mountain 304 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
  JROH1226  Senecio vulgaris John H. Thomas 1973-4-14 16558 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC80294  Sequoia sempervirens William R. Dudley 1894-2-25 s.n. San Mateo near Summit Springs Comment
  JROH134  Sequoia sempervirens John H. Thomas 1964-11-29 10542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY804113  Sequoia sempervirens C. R. Broome 1978-7-2 2224 San Mateo Kings Mountain Road, 1.5 miles W of its junction with CA Hwy 84. Comment
  UCSB11437  Sequoia sempervirens Olson, Jim 1962-4-15 San Mateo 8 miles north of junction with Portola State Park Road on Camp Pomponio Road, 10 miles southwest of La Honda 213 Comment
  UCSB9574  Sequoia sempervirens Haller, John 1950-4-24 San Mateo Skyline drive, junction with woodside, La Honda Road 609 Comment
  CAS-BOT-BC243555  Setaria parviflora Paul Reeberg; Jake Sigg; Peter Rubtzoff 1991-8-10 s.n. San Mateo West side of P.G.&E. property, adjacent of P.G.&E. Marsh, San Bruno Mountains Comment
  JROH3832  Sherardia arvensis John H. Thomas 1974-4-4 17077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3836  Sherardia arvensis John Hunter Thomas 1989-5-11 24741 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH3838  Sherardia arvensis John Hunter Thomas 1992-4-23 25154 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  SBBG83432  Sherardia arvensis B. Bowman 1961-3-30 30 San Mateo corner of Sebastian Drive and Lassuen Court; Burlingame 9 Comment
  UCD116582  Sidalcea hickmanii subsp. viridis S. Seiki 1998-5-2 2 San Mateo city of Pacifica, Montara Mountain, approximately 2.3 miles from San Pedro Valley along Devil's Slide heading west. Specimen found along trail about 0.25 mile in from the entrance to the trail. Comment
  CAS-BOT-BC205603  Sidalcea malviflora Dean Wm. Taylor 1988-3-30 9468 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 237 Comment
  JEPS127780  Sidalcea malviflora subsp. laciniata Adam C. Schneider with C. Matt Guilliams 2013-3-9 34 San Mateo Comment
  UC676738  Sidalcea malviflora subsp. laciniata Reed C. Rollins 1941-3-22 2949 San Mateo 1 mi n Belmont; n of Belmont Comment
  POM214348  Sidalcea malviflora subsp. malviflora I. L. Wiggins 1931-2-21 5097 San Mateo Near Pescadero Comment
  CAS-BOT-BC175277  Silene W. R. Dudley 1900-3-17 s.n. San Mateo By grade, south slope, near top Montara Mts. Comment
  POM151595  Silene californica A. D. E. Elmer 1903-06 4446 San Mateo Crystal Springs Lake. Comment
  RSA18377  Silene californica C. B. Wolf 1927-7-1 531 San Mateo Above Emerald Lake, back of Redwood City. Comment
  CAS-BOT-BC386853  Silene gallica John H. Thomas 1961-5-7 9309 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC386850  Silene gallica Javier Penalosa 1963-3-9 2696 San Mateo San Bruno Mountain. Ravine 1/2 mi. east of 1314ft. summit. 304 Comment
  CAS-BOT-BC386856  Silene gallica Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  JROH1732  Silene gallica John H. Thomas 1971-4-10 15757 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389196  Silene laciniata subsp. californica L. R. Abrams 1909-5-26 4237 San Mateo Santa Cruz Peninsula. Between Woodside and Crystal Springs Comment
  CAS-BOT-BC175278  Silene verecunda Elizabeth McClintock 1972-5-10 s.n. San Mateo East of Parking Lot summit of mountain. San Bruno Mountain Comment
  CAS-BOT-BC364854  Silybum marianum 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-BC75352  Sisymbrium officinale Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountains. Crocker Avenue. Comment
  CDA3853  Sisymbrium officinale W. Plummer 1971-7-9 San Mateo Dick Bulles property, Alpine Creek, Pescadero . 0 Comment
  IRVC9060  Sisyrinchium bellum P. W. Rundel 1963-6-11 1129 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  UCD138874  Sisyrinchium bellum R. E. Dengler 1960-4-12 24 San Mateo on northeast side of ravine, Jasper Ridge, Stanford Biological Reserve. 129 Comment
  UC1134664  Smilacina racemosa N. K. Carlson 1935-7-3 119 San Mateo 3 mi s Bellvale; Santa Cruz Quadrangle Comment
  SEINET5571657  Smilacina stellata H. S. Gentry 1931-1 3 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  UCR129777  Smilacina stellata var. sessilifolia C. B. Wolf 1927-4-3 00250 San Mateo Santa Cruz Mtns., 1 mile above La Honda 183 Comment
  RSA377730  Smilacina stellata var. sessilifolia Lewis S. Rose 1937-3-20 37005 San Mateo Moist Hills, Skyline Blvd. W. of Tanforan. 183 Comment
  JEPS96897  Solanum americanum Dean W. Taylor 1988-3-30 9474 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest; right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 176 Comment
  SJSU7787  Solanum americanum C. A. Staicer 1976-9-25 San Mateo San Francisquito Cr near El Camino Real, Menlo Park Comment
  UCD126877  Solanum douglasii G. L. Stebbins Jr.; E. F. Paddock 1939-8-17 63 San Mateo San Gregorio. Comment
  CDA19847  Solanum elaeagnifolium J. Beall 2002-4-26 PDR 065844 San Mateo San Francisco Bay Area; Beech St & RR tracks behind 1303 Main Street, Redwood City. 0 Comment
  RSA152273  Solanum furcatum John H. Thomas 1961-5-7 9302 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC1332473  Solanum furcatum G. L. Stebbins Jr. and J. W. Duffield 1938-10-24 19 San Mateo Mussell Rock Comment
  UC1332474  Solanum furcatum G. L. Stebbins Jr. and J. W. Duffield 1938-10-24 19 San Mateo Mussell Rock Comment
  HSC21333  Solanum furcatum G. L. Stebbins, E. L. Paddock 1939-8-17 57 San Mateo Mussel Rock Comment
  UCD126846  Solanum furcatum E. F. Paddock; G. L. Stebbins Jr. 1940-7-28 89 San Mateo Tobin. Comment
  NY821395  Solanum nigrum L. Abrams 1939-6-3 425 San Mateo Ano Nuevo Point Comment
  RSA14505  Solanum physalifolium var. nitidibaccatum I. L. Wiggins 1935-8-24 8164 San Mateo Pepper field, about 0.5 mile S of Moss Beach. Comment
  CAS-BOT-BC154184  Solanum umbelliferum F. Hemphill 1973-5-6 751 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC58482  Solanum umbelliferum R. C. Rollins 1941-3-16 2944 San Mateo E slope of Kings Mountain about 6 miles W of Woodside, Santa Cruz Mts. Comment
  JROH4184  Solanum umbelliferum Daniel Cohen 1953-4-11 22 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
  NY820567  Solanum umbelliferum L. S. Rose 1939-2-26 39016 San Mateo Emerald Lake 183 Comment
  UC884945  Solanum umbelliferum Lewis S. Rose 1939-2-26 39016 San Mateo Emerald Lake 182 Comment
  CAS-BOT-BC157549  Solanum umbelliferum P. H. Raven 1950-4-16 1797 San Mateo Summit ridge, San Bruno Mts. 243 Comment
  SEINET7262176 Image available Solanum umbelliferum L. R. Abrams 1914-4-2 5073 San Mateo San Mateo County Comment
  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
  JEPS32447  Solidago elongata W. L. Jepson 1910-8-18 4163 San Mateo Butano Cr Comment
  SD30800  Solidago velutina subsp. californica Edith A. Purer 1933-8-25 San Mateo Spring Valley, along roadside. Comment
  CAS-BOT-BC365929  Soliva sessilis John H. Thomas 1961-5-7 9262 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH1244  Soliva sessilis John Hunter Thomas 1978-5-12 19202 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1251  Soliva sessilis John Hunter Thomas 1987-5-5 24250 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Road Comment
  CAS-BOT-BC365935  Soliva sessilis R. E. Frenkel 1964-4-2 413 San Mateo On Spring Valley Ridge Road, SFWD, at junction of Spring Valley Ridge Road and Whiting Ridge Road 347 Comment
  RSA130975  Soliva sessilis W. R. Dudley 1895-6-6 s.n. San Mateo Near Pescadero Creek. The Santa Cruz Peninsula. Comment
  JROH1259  Sonchus asper subsp. asper John Hunter Thomas 1986-5-15 24043 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374705  Sonchus oleraceus Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  SD38308  Sonchus oleraceus Edith A. Purer 1932-7-18 San Mateo Half Moon Bay; Comment
  UCSB17217  Sonchus oleraceus Schulte, John 1963-4-26 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  JROH5949  Sparaxis tricolor Trevor Hebert, John Rawlings 2017-4-6 2015 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the Sand Hill Rd. fence-line northeast of the intersection of Road L and Road H 124 Comment
  JEPS13123  Sparganium eurycarpum var. eurycarpum V. F. Hesse 1955-10-10 1720 San Mateo 4 mi from Pescadero (pond near Butano road) 60 Comment
  JROH5528  Sparganium eurycarpum var. eurycarpum M. Whitley 1990-5-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By west edge of dam. Comment
  JROH5522  Sparganium eurycarpum var. eurycarpum G. H. Mallory 1919-8-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Marsh at head of Searsville Lake. Comment
  JROH1763  Spergularia John Hunter Thomas 1983-5-23 22244 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road near shack side and low-flow crossing Comment
  CAS-BOT-BC390207  Spergularia bocconi Alice Eastwood 1937-7-25 18888 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC390208  Spergularia bocconi Alice Eastwood 1937-7-25 18888 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC390465  Spergularia macrotheca var. macrotheca Ira L. Wiggins 1938-7-9 8932 San Mateo Cliffs near Pigeon Point light house Comment
  CAS-BOT-BC390471  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1940-6-20 738 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC390921  Spergularia marina Javier Penalosa 1963-3-30 2768 San Mateo San Bruno Mountain. Guadalupe Valley 30 Comment
  JEPS62956  Stachys ajugoides W. L. Jepson 1928-7-11 12938 San Mateo e Redwood City 3 Comment
  RSA131287  Stachys ajugoides W. R. Dudley 1894-05 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  JROH2898  Stachys bullata John H. Thomas 1971-5-30 15977 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2905  Stachys bullata John Hunter Thomas 1980-11-27 20177 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  UC100826  Stachys bullata J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  UCD125820  Stachys bullata G. K. Helmkamp; E. A. Helmkamp 2001-6-2 6771 San Mateo Central CA coast: Purissima Crk Road, E of Half Moon Bay at Purissima Crk, 3.2 miles E of CA-1. 243 Comment
  HSC23911  Stachys bullata Mary Katherine Wicksten 1971-6-15 51 San Mateo Huddart Park near residence Comment
  RSA116680  Stachys bullata Josephine Randall 1907-4-27 186 San Mateo Kings Mt. Road. Comment
  SEINET12343829  Stachys bullata L. S. Rose 1932-5-3 32215 San Mateo San Bruno 183 Comment
  UC191758  Stachys bullata E. L. Greene 1887-6-11 San Mateo Comment
  NY415785  Stachys gracilenta A. A. Heller 1907-5-28 8574 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  SEINET13948145 Image available Stachys pycnantha Lewis S. Rose 1956-1 56118 San Mateo Emerald Lake, hills W of Redwood City. Alt ca 600 ft 183 Comment
  JROH2892  Stachys rigida var. quercetorum John H. Thomas 1967-5-12 12884 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164106  Stachys rigida var. quercetorum Peter Rubtzoff; Elizabeth McClintock, Barbara Deutsch 1978-6-4 9202 San Mateo San Bruno Mountain. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC394057  Stellaria media John H. Thomas 1964-4-30 10358 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC394061  Stellaria media Fred Hemphill 1973-3-9 641 San Mateo San Carlos; Chaparral area north of Malabar Rd. and Melendy Dr. 243 Comment
  JROH1786  Stellaria media John Hunter Thomas 1982-3-23 20815 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1777  Stellaria media J. H. Thomas 1963-2-21 10021 San Mateo Jasper Ridge Biological Preserve, Stanford University; along old road at Westridge end of ridge Comment
  JROH1274  Stephanomeria virgata John H. Thomas 1978-9-24 19337 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18514  Stephanomeria virgata C. B. Wolf 1927-7-14 606 San Mateo Summit of Kings Mountain Rd. Comment
  JROH5322  Stipa lepida John H. Thomas 1967-5-31 12944 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5326  Stipa lepida John Hunter Thomas 1988-4-28 24413 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM296440  Stuckenia pectinata Lyman Benson 1932-6-29 3750 San Mateo Lake Searsville, Santa Cruz Mt. range, San Francisco Bay watershed. 152 Comment
  SD38068  Stylomecon heterophylla Marie Cummings 1933-5-8 80 San Mateo Steven's Creek. Comment
  CAS-BOT-BC271602  Symphoricarpos albus var. laevigatus Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo Radio Road, San Bruno Mountain 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
  CAS-BOT-BC271650  Symphoricarpos albus var. laevigatus Elizabeth McClintock 1964-2-16 s.n. San Mateo Lowe part of Radio Road, San Bruno Mountain Comment
  JEPS85568  Symphoricarpos albus var. laevigatus Craig Dremann 1986-8-30 326 San Mateo near San Gregorio (on Stage road, 500 ft s of intersection of Seaside School road, next to road) Comment
  JROH1678  Symphoricarpos albus var. laevigatus John H. Thomas 1964-11-29 10540 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  POM285012  Symphoricarpos albus var. laevigatus Lyman Benson 1937-7-15 8449 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  RSA14209  Symphoricarpos albus var. laevigatus C. B. Wolf 1926-10-19 193 San Mateo Roadside slope, west of La Honda. Comment
  RSA152163  Symphoricarpos albus var. laevigatus John H. Thomas 1961-5-7 9267 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  RSA177008  Symphoricarpos albus var. laevigatus John H. Thomas 1964-11-29 10540 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto; along San Francisquito Creek below dam. Comment
  JROH1687  Symphoricarpos mollis John Rawlings, Ann Lambrecht 2010-5-2 1097 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near west end of Birder's Trail between and parallel Rd. E and Trail 7 150 Comment
  CAS-BOT-BC99052  Symphyotrichum chilense Lewis S. Rose 1933-10-14 33381 San Mateo Visitacion Valley Comment
  JEPS81902  Symphyotrichum subspicatum Roger Raiche 1982-9-6 20720 San Mateo Montara Mt. 30 Comment
  SBBG40538  Tanacetum camphoratum B. Sherfey, A. L. Menzies 1963-9-14 San Mateo San Bruno Hills Comment
  JROH5940  Taraxacum officinale John Rawlings 1917-2-22 1958 San Mateo Jasper Ridge Biological Preserve, Stanford University; in and along Trail 20 85 Comment
  CAS-BOT-BC353469  Taraxacum officinale Peter Rubtzoff 1976-3-28 8449 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH376  Tauschia kelloggii Toni Corelli 2004-3-24 268 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area H 167 Comment
  CAS-BOT-BC447478  Tellima grandiflora W. R. Dudley 1900-3-17 s.n. San Mateo Ravine, north of Seal Cove Comment
  CAS-BOT-BC447480  Tellima grandiflora John H. Thomas 1961-5-14 9363 San Mateo Vicinity of pilarcitos Stone Dam on Pilarcitas Creek. San Francisco Watershed reserve. 152 Comment
  POM141769  Tellima grandiflora A. D. E. Elmer 1903-06 4702 San Mateo Pescadero. 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-BC447477  Tellima grandiflora W. R. Dudley 1894-5-27 s.n. San Mateo Near top of King's Mt. Comment
  CAS-BOT-BC447483  Tellima grandiflora Le Roy Abrams 1901-5-1 1558 San Mateo Searsville-Bear Gultch Comment
  CAS-BOT-BC447486  Tellima grandiflora J. P. Moore 1878-4-26 s.n. San Mateo Lagunitis Creek Comment
  RSA127726  Tetragonia tetragonoides John H. Thomas 1959-7-8 8015 San Mateo Low moist coastal bluffs at Pescadero Beach. Comment
  UC766175  Tetragonia tetragonoides R. F. Hoover 1941-2-12 4754 San Mateo Half Moon Bay Comment
  CAS-BOT-BC438264  Tetragonia tetragonoides Ira L. Wiggins 1935-8-24 8161 San Mateo At Moss Beach Comment
  JROH3504  Thalictrum fendleri var. polycarpum D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. On Searsville Ridge Comment
  JROH3515  Thalictrum fendleri var. polycarpum John Hunter Thomas 1991-4-11 24987 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC399841  Thalictrum polycarpum A. D. E. Elmer 1903-6-1 4425 San Mateo Butano Creek Comment
  CAS-BOT-BC399843  Thalictrum polycarpum W. R. Dudley 1906-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Whipple Road - West of Redwood City Comment
  CAS-BOT-BC399846  Thalictrum polycarpum W. R. Dudley 1893-5-27 s.n. San Mateo Santa Cruz Peninsula. Between King's Mountain and El Corte Madera Creek Comment
  CAS-BOT-BC66665  Thysanocarpus curvipes John H. Thomas 1971-4-24 15775 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66674  Thysanocarpus curvipes John H. Thomas 1977-4-2 18507 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66676  Thysanocarpus curvipes Margaret A. Barry 1937-4-21 18 San Mateo On Coal Mine Ridge. Comment
  JROH1624  Thysanocarpus curvipes John Hunter Thomas 1992-4-4 25129 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH5697  Thysanocarpus curvipes subsp. elegans John Rawlings 2015-3-31 1418 San Mateo Jasper Ridge Biological Preserve, Stanford University. Northwest side of small drainage upstream from the footbridge on Trail 11. 134 Comment
  CAS-BOT-BC447581  Tiarella trifoliata var. unifoliata L. R. Abrams 1907-8-26 s.n. San Mateo Spring near King's 762 Comment
  JROH383  Torilis nodosa John Hunter Thomas 1980-5-13 19966 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH388  Torilis nodosa John Hunter Thomas 1981-5-25 20622 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH391  Torilis nodosa John Hunter Thomas 1983-6-2 22327 San Mateo Jasper Ridge Biological Preserve, Stanford University; near green shack Comment
  CAS-BOT-BC81499  Torreya californica Ira L. Wiggins 1945-5-5 11161 San Mateo along La Honda Creek about 1 mile above La Honda 152 Comment
  JROH186  Toxicodendron diversilobum John H. Thomas 1974-10-26 17625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176598  Toxicodendron diversilobum John H. Thomas 1964-4-4 10295 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto; towards Searsville end of ridge 152 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-BC377139  Tragopogon porrifolius Cherie Wetzel 1969-6-20 888 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JROH3389  Trientalis latifolia John H. Thomas 1961-5-5 9215 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  JROH3395  Trientalis latifolia John Hunter Thomas 1981-5-5 20538 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM287405  Trientalis latifolia Lyman Benson 1928-4-21 s.n. San Mateo Stanford University, Mt. Range: Santa Cruz; River: San Francisquito Creek. 91 Comment
  UCSC010881  Trifolium R. Morgan 1997-5-13 2569 San Mateo Vicinity of San Mateo/Santa Cruz County line Comment
  UCD107567  Trifolium albopurpureum Michael A. Vincent; Ethan H. Freid 1998-4-9 8202 San Mateo East side of Canada Road, ca. 200 yards southeast of its junction with Edgewood Road, just southwest of I-280, at Filoli Center. Comment
  UCSB18282  Trifolium albopurpureum Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 76 Comment
  UC33530  Trifolium albopurpureum var. albopurpureum E. R. Drew April 1888 San Mateo San Pedro Ranch Comment
  UC518035  Trifolium albopurpureum var. albopurpureum Lewis S. Rose 1933-5-17 33172 San Mateo Redwood City Comment
  UC16490  Trifolium albopurpureum var. dichotomum Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  JROH2239  Trifolium barbigerum John H. Thomas 1973-4-14 16566 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM278010  Trifolium bifidum Lyman D. Benson 1935-5-5 6523 San Mateo Lake Searsville 152 Comment
  POM20507  Trifolium bifidum var. decipiens A. D. E. Elmer 4714 San Mateo Portola. Comment
  RSA184981  Trifolium bifidum var. decipiens L. S. Rose 1966-5-2 66035 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  JROH2230  Trifolium dichotomum John H. Thomas 1964-4-19 10319 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2231  Trifolium dichotomum John H. Thomas 1966-4-22 11574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA8349  Trifolium dichotomum L. S. Rose 1933-5-17 33172 San Mateo Redwood City Comment
  JROH2280  Trifolium dubium John Hunter Thomas 1980-4-10 19878 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH2302  Trifolium fucatum John Hunter Thomas 1985-4-11 23522 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2306  Trifolium fucatum John Hunter Thomas 1989-5-9 24699 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA95543  Trifolium fucatum var. fucatum L. S. Rose 1953-4-5 53014 San Mateo Redwood City, along Bayshore Highway. 3 Comment
  UC165628  Trifolium gracilentum J. Burtt Davy 1895-1 1026 San Mateo Pilarcitos Comment
  JROH2319  Trifolium hirtum John Hunter Thomas 1981-5-14 20576 San Mateo Jasper Ridge Biological Preserve, Stanford University; along dirt road near main entrance Comment
  JROH2335  Trifolium hirtum John Hunter Thomas 1992-4-4 25128 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  CAS-BOT-BC5351  Trifolium macraei Adolph Daniel Edward Elmer 1903-5-1 4812 San Mateo San Pedro Comment
  UC202836  Trifolium macraei A. D. E. Elmer May, 1903 4713 San Mateo Lake Merced Comment
  UC204263  Trifolium microdon A. D. E. Elmer June 1903 4628 San Mateo Portola Comment
  UCD78150  Trifolium tomentosum Robert E. Preston 2008-4-2 2602 San Mateo 1.1 mi SE of San Andreas Reservoir, at jct two dirt roads 107 Comment
  JROH2385  Trifolium variegatum John H. Thomas 1975-4-19 17803 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2391  Trifolium variegatum John Hunter Thomas 1992-4-23 25155 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Indian grinding rock and along trail to redwoods Comment
  JROH2399  Trifolium willdenovii John H. Thomas 1968-4-19 14297 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2404  Trifolium willdenovii John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2415  Trifolium willdenovii John Hunter Thomas 1991-4-11 24985 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  POM18843  Trifolium willdenovii C. F. Baker 1902-4-4 451 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC451910  Triglochin maritima Ira L. Wiggins 1946-4-30 11200 San Mateo On west side of Bayshore Highway 1/2 mile north of Redwood City. Comment
  UC142121  Trillium chloropetalum Michener and Bioletti March, 1893 San Mateo near Colma Comment
  UC4021  Trillium chloropetalum Michener and Bioletti Mar 1893 4 San Mateo near Colma Comment
  CAS-BOT-BC521064  Trillium chloropetalum var. giganteum Alice Eastwood 1916-3-1 s.n. San Mateo San Mateo Comment
  RSA15261  Trillium ovatum Carl B. Wolf 1927-2-26 225 San Mateo Under redwoods on a steep bank on the La Honda Grade. Comment
  SEINET12044499  Trillium ovatum P. R. Hichborn 1920-1 115 San Mateo Sierra Moreva Ridge Comment
  JROH1648  Triodanis biflora H. L. Mason 1921-6-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC238559  Triphysaria floribunda John Thomas Howell 1933-5-26 11346 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC238564  Triphysaria floribunda W. R. Dudley 1899-5-14 s.n. San Mateo The Santa Cruz Peninsula. Baden Comment
  JEPS4532  Triphysaria floribunda R. F. Hoover 1939-4-21 4057 San Mateo 2 mi s Colma Comment
  JROH4134  Triphysaria pusilla John H. Thomas 1961-4-8 9076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU16036  Triphysaria versicolor subsp. versicolor Toni Corelli, John Rawlings 2016-4-29 1767 San Mateo Along Atkinson Bluff Trail and throughout Cascade Field, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  JROH4742  Triteleia ixioides subsp. ixioides John Rawlings 2011-6-22 1070 San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of ridge down slope from Escobar Gate. 130 Comment
  CAS-BOT-BC526105  Triteleia ixioides subsp. ixioides Ray H. Yarris 1951-5-30 75 San Mateo Kings Mountain 152 Comment
  JROH4748  Triteleia laxa John H. Thomas 1973-4-14 16551 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
  SEINET7097931  Triteleia laxa 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
  IRVC9055  Triteleia laxa P. W. Rundel 1963-6-11 1118 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  SEINET12053810  Triteleia laxa M. T. Doutt 1931-1 412 San Mateo Skyline Blvd. W of Hellbrae Comment
  CAS-BOT-BC212676  Ulex europaeus Javier Penalosa 1963-2-23 2645 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  CDA4351  Ulex europaeus Ed Finley 1988-12-1 San Mateo Along south side of Hickey Boulevard, to 0.1 east of I-280, Daly City. 0 Comment
  UC2015626  Ulex europaeus Don Pendleton 1993-11-20 San Mateo Daly City at 333 Hickey Blvd. Comment
  UCR101543  Ulex europaeus Don Pendleton 1993-11-20 s.n. San Mateo San Francisco Bay Area, South San Francisco, south side of Hickey Blvd. between Junipero Serra Blvd. and the 280 Fwy, east of Mandarin Dr. and west of Longford Dr., at edge of Daly City, SW of Cypress Lawn Cemetery Comment
  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
  CDA29899  Ulex europaeus John Beall 2009-11-6 PDR# 1527833 San Mateo In the vicinity of South San Francisco; uphill, along Junipero Serra Boulevard, near King Drive and 100 feet east of Longford Drive. 0 Comment
  JROH137  Umbellularia californica John H. Thomas 1968-2-11 14143 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH142  Umbellularia californica John Hunter Thomas 1981-12-21 20792 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM177516  Umbellularia californica Harry A. Dutton 1900-2-18 s.n. San Mateo Woodside. Comment
  SEINET12102550  Umbellularia californica G. A. McCallum 1933-1 s.n. San Mateo near San Francisquita Creek Comment
  CDA7780  Urospermum picroides T. C. Fuller 1974-5-21 19991 San Mateo San Pedro Valley County Park, 0.2 miles east of the end of Linda Mar Boulevard, Pacifica. 0 Comment
  SEINET12026865  Urtica dioica Unknown 1932-1 9154 San Mateo Sky Line Drive Comment
  UC5968  Urtica dioica subsp. holosericea J. Burtt Davy 1895-3-20 1055 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC199178  Vaccinium cespitosum John H. Thomas 1963-9-11 10264 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC199180  Vaccinium cespitosum Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo West facing slope of Kamchatka Point Comment
  CAS-BOT-BC471249  Vaccinium cespitosum Peter W. Fritsch; Doug Allshouse 2015-2-26 1967 San Mateo San Bruno Mountain County Park, west end of San Bruno Mountain, at Kamchatka Point just below the Ridge Trail 318 Comment
  UC571031  Vaccinium ovatum H. L. Mason 1928-2-22 4165 San Mateo Summit of San Bruno Mountains Comment
  RSA112363  Vaccinium parvifolium W. R. Dudley 1903-5-2 s.n. San Mateo Iverson's, Pescadero Creek. Comment
  CAS-BOT-BC76140  Vancouveria planipetala Dr. E. B. Copeland 1903-5-9 3051 San Mateo Big Basin. Comment
  CAS-BOT-BC76143  Vancouveria planipetala Miss A. M. Patterson 1906-4-27 s.n. San Mateo Santa Cruz Mountain Peninsula. King's Mountain. Comment
  POM272218  Vancouveria planipetala Lyman Benson 1931-5-10 2795 San Mateo Woodside, Santa Cruz Mountains. 244 Comment
  RSA411631  Verbena lasiostachys E. S. Spalding 1923-8-3 s.n. San Mateo 3 miles W of Redwood City, near Pulgas Tunnel. Comment
  RSA788376  Veronica americana Peter Rubtzoff 1980-8-4 9560 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Westernmost part of the area on a slope across fence. Comment
  SEINET12157683  Vicia americana M. T. Doutt 1931-1 s.n. San Mateo Ano Nuevo Point Comment
  UC16934  Vicia americana var. americana J. Burtt Davy Jun 21 1893-Jun 23 1893 1160 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  POM278056  Vicia americana var. americana Lyman D. Benson 1935-5-5 6530 San Mateo Lake Searsville. 152 Comment
  SD2652  Vicia americana var. truncata Unknown Jun 1925 San Mateo Near La Honda Comment
  CAS-BOT-BC173532  Vicia angustifolia Peter Rubtzoff 1977-6-21 9062 San Mateo Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon Comment
  RSA195662  Vicia angustifolia John H. Thomas 1967-5-2 12739 San Mateo Colma. Near intersection of El Camino Real and F Street. Comment
  POM16746  Vicia gigantea A. D. E. Elmer 1903-06 4445 San Mateo Pescadero Comment
  RSA397993  Vicia gigantea Emery M. Whilton 1935-2-23 s.n. San Mateo Near Mussel Rock Comment
  CAS-BOT-BC157965  Vicia sativa Peter Rubtzoff 1976-6-30 8709 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon Comment
  JROH2443  Vicia sativa subsp. sativa H. J. Dengler 1975-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by "road" onto J.R. from Westridge, Goya Road entrance; 200 m from Westridge fence Comment
  UCSB8438  Vicia sativa subsp. sativa Haller, John 1950-4-24 San Mateo Near Atherton, 3 miles northwest of Stanford University Comment
  CAS-BOT-BC264032  Viola adunca W. R. Dudley 1896-4-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Pebble Beach, Pescadero Comment
  CAS-BOT-BC264047  Viola adunca Alice Eastwood 1915-3-13 s.n. San Mateo San Bruno hills Comment
  CAS-BOT-BC264050  Viola adunca Roxana S. Ferris 1920-4-26 1978 San Mateo Road above Lagoon and mouth of Arroyo de Los Frijoles 30 Comment
  RSA130984  Viola glabella M. N. paulson 1915-4-10 s.n. San Mateo Kings Mountain. Comment
  CAS-BOT-BC536575  Viola glabella George Oberlander 1949-6-25 200 San Mateo San Francisco Watershed Reserve: southern boundary Comment
  CAS-BOT-BC536827  Viola glabella Mita C. Daniel 1915-4-10 s.n. San Mateo Kings Mountain Comment
  POM135301  Viola glabella Stewart H. Burnham 1895-5-8 792 San Mateo Outer Coast Range. Comment
  RSA130595  Viola glabella Roxana S. Ferris 1920-4-26 1961 San Mateo Near mouth of canyon of Pescadero Creek. The Santa Cruz Mtn Peninsula. 244 Comment
  RSA15278  Viola glabella Carl B. Wolf 1927-4-3 244 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  RSA0056266  Viola sarmentosa W. M. Arbaugh 1968-4-10 225 San Mateo Butano State Park. Comment