Search Results — 2000 specimen records retrieved (1363 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 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
  SEINET11941810  Abronia latifolia E. A. Purer 1933-1 5381 San Mateo Sand dunes, 2 mi S of Pigeon Point Comment
  CAS-BOT-BC177043  Acacia dealbata George Oberlander 1950-2-1 451 San Mateo San Andreas Dam 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
  CAS-BOT-BC451119  Acaena pinnatifida var. californica Robert F. Hoover 1939-4-21 4053 San Mateo Two miles south of Colma Comment
  CAS-BOT-BC451124  Acaena pinnatifida var. californica John Thomas Howell 1926-4-24 1915 San Mateo Daly City Comment
  JEPS83041  Acaena pinnatifida var. californica Roy E. Buck, Randall A. Morgan, and James A. West 1983-7-15 433 San Mateo ca. 3.2 km. n.w. of Pilarcitos Dam (and 2.4 km. w.-s.w. of San Andreas Dam, along crest of Fifield Ridge, w. of gravel rd.); San Francisco Watershed Reserve 388 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
  JEPS62924  Acanthomintha duttonii Harry A. Dutton 1915-5-26 San Mateo Menlo (W of, near Menlo Golf Club), Vicinity of San Francisco Bay Region. Comment
  RSA18365  Acanthomintha obovata subsp. duttonii Carl B. Wolf 1929-5-24 3723 San Mateo upper Emeral Lake, Back of Redwood City Comment
  CAS-BOT-BC333288  Acer macrophyllum W. R. Dudley 1906-6-14 s.n. San Mateo Santa Cruz Mountain Peninsula. San Francisquito Creek, near Cedro Cottage, Stanford Univ. Comment
  JROH159  Acer macrophyllum John H. Thomas 1975-6-5 17948 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Searsville Dam 91 Comment
  RSA116907  Acer macrophyllum W. R. Dudley 1906-6-30 s.n. San Mateo Los Truncos Road, near Los Truncos Dairy Comment
  CAS-BOT-BC333289  Acer macrophyllum W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Peter's Creek Bridge, Iversons Comment
  CAS-BOT-BC337446  Acer negundo var. negundo J. H. Thomas 1954-4-21 3942 San Mateo San Francisquito Creek 0 Comment
  CAS-BOT-BC28767  Achillea millefolium H. M. Hall 1923-10-26 847 -C San Mateo Collected live in Montara, planted in Stanford Gardens and later vouchered from there. 0 Comment
  UCR254762  Achillea millefolium Peter Rubtzoff 1977-6-21 9065 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC21582  Achillea millefolium Cherie Wetzel 1969-6-20 863 San Mateo Near Canada College, Redwood City, just off Farm Hill Blvd. Comment
  CAS-BOT-BC21589  Achillea millefolium C. F. Leitholdt 1894-4-6 s.n. San Mateo New road to Black Mountain Comment
  JROH459  Achyrachaena mollis John H. Thomas 1963-5-12 10079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH464  Achyrachaena mollis John H. Thomas 1976-4-30 18101 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH475  Achyrachaena mollis John Hunter Thomas 1988-5-3 24447 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU7494  Acmispon americanus var. americanus L. S. Rose 1964-9-5 64071 San Mateo Emerald L W of Redwood City 243 Comment
  JROH2072  Acmispon glaber var. glaber John Hunter Thomas 1981-5-14 20575 San Mateo Jasper Ridge Biological Preserve, Stanford University 156 Comment
  JROH2053  Acmispon parviflorus G. C. Kimber & Lucile Roush 1918-4-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5954  Acmispon parviflorus John H. Thomas 1967-5-10 12842 San Mateo Comment
  JROH2091  Acmispon wrangelianus John H. Thomas 1961-4-8 9075 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2096  Acmispon wrangelianus John H. Thomas 1970-4-29 15617 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC29293  Adenocaulon bicolor Josephine D. Randall 1907-6-29 41 San Mateo Kings Moutain Road Comment
  POM56205  Adenocaulon bicolor A. D. E. Elmer 1903-06 s.n. San Mateo Pescadero Creek Comment
  UC306653  Adenocaulon bicolor A. D. E. Elmer 1903-6-1 4300 San Mateo Pescadero Creek Comment
  CAS-BOT-BC139951  Adenostoma fasciculatum Fred Hemphill 1973-4-15 660 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC139953  Adenostoma fasciculatum Ned Cahill 1974-5-13 260 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City 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
  UCSB23606  Adiantum aleuticum Masero, Ann 1967-3-21 San Mateo Adjacent to Butano Creek in Butano Canyon, 3.1 mi E of junction of Cloverdale Road and Canyon Road 91 Comment
  RSA15284  Adiantum jordanii C. B. Wolf 1927-4-3 252 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  CAS-BOT-BC202670  Aesculus californica George Oberlander 1949-5-21 190 San Mateo San Francisco Watershed Reserve. Sawyer Ridge 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
  CAS-BOT-BC29525  Agoseris apargioides Alice Eastwood 1915-6-13 4715 San Mateo Granada Comment
  UCD128597  Agoseris grandiflora W. A. Harvey; J. M. Tucker 1948-6-29 9782 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC22977  Agoseris grandiflora var. grandiflora Ned Cahill 1974-5-30 326 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC46127  Agoseris heterophylla Ned Cahill 1974-4-19 142 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC46174  Agoseris heterophylla John H. Thomas 1974-4-11 17137 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside. 152 Comment
  CAS-BOT-BC15235  Agoseris hirsuta David D. Keck 1932-5-6 1461 San Mateo near Belmont Comment
  CAS-BOT-BC15239  Agoseris hirsuta Josephine D. Randall 1907-11-9 s.n. San Mateo Alpine road to Black Mountain Comment
  UCSC008504  Agrostis Randall Morgan 2013-5-24 5527 San Mateo Bean Hollow State Beach, on side of trial, a bit beyond #5526 and well beyond wooden bridge Comment
  UCD51827  Agrostis avenacea Peter H. Raven 1950-6-3 2272 San Mateo on the stand of San Andreas Lake. 121 Comment
  JEPS82921  Agrostis blasdalei James A. West 1983-8-14 189 San Mateo exposed coastal bluffs ca 2 km s of the Pigeon Point Lighthouse, +/- overlooking Columbia Beach Comment
Read comments
Dec 20 2015
  CAS-BOT-BC127465  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo State Highway 1, ca. 5-6 miles south of San Francisco. Comment
  SJSU15843  Agrostis densiflora John Rawlings, Toni Corelli 2014-8-13 1205 San Mateo Coastal bluff just west of Hwy 1, north of Pomponio State Beach 36 Comment
  JEPS100764  Agrostis exarata Dean W. Taylor 2000-4-25 17457 San Mateo Montara Mountain (on Montara State Beach), along dirt road 1 mile west from North Peak 411 Comment
  CAS-BOT-BC139722  Agrostis gigantea John H. Thomas 1960-6-25 8798 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 7 Comment
  JROH4791  Agrostis hallii John Rawlings 2008-7-9 1028 San Mateo Jasper Ridge Biological Preserve, Stanford University; off of Trail 3 (just east of James Griffin's old blue oak plot southeast of the trail) in an open grassy area 182 Comment
  JROH4794  Agrostis hallii John Rawlings 2011-6-21 1085 San Mateo Jasper Ridge Biological Preserve, Stanford University; adjacent to Horse Trail in opening in chaparral a few hundred feet from Escobar Road 125 Comment
  SJSU15849  Agrostis pallens John Rawlings, Ken Hickman 2015-6-8 1574 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  SJSU15958  Agrostis pallens John Rawlings, Ken Hickman 2016-5-26 1835 A San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH4156  Ailanthus altissima John H. Thomas 1980-11-18 20172 San Mateo Jasper Ridge Biological Preserve, Stanford University 98 Comment
  JROH4160  Ailanthus altissima John Hunter Thomas 1992-5-26 25353 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along SLAC corridor 82 Comment
  CAS-BOT-BC138244  Aira caryophyllea var. caryophyllea John H. Thomas 1971-5-2 15833 San Mateo Near intersection of Canada Road and Edgewater Road about three miles westward from Redwood City. 152 Comment
  CAS-BOT-BC138251  Aira caryophyllea var. caryophyllea H. L. Mason 1921-5-29 s.n. San Mateo Near Arroyo de las Frijoles. Comment
  JROH4542  Allium amplectens John Hunter Thomas 1980-5-6 19928 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC467298  Allium dichlamydeum Barrett Anderson; Peter Rubtzoff 1988-4-26 3675 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Parkway. 365 Comment
  UC306609  Allium falcifolium A. D. E. Elmer June, 1903 4831 San Mateo Crystal Springs Lake Comment
  SEINET12043965  Allium falcifolium L. S. Rose 1933-1 33177 San Mateo Crystal Springs Lake Comment
  JROH4554  Allium lacunosum var. lacunosum H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC471099  Allium lacunosum var. lacunosum Lewis S. Rose 1932-5-1 s.n. San Mateo Emerald Lake Comment
  RSA177007  Alnus rhombifolia John H. Thomas 1964-11-29 10539 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto; along San Francisquito Creek below dam. Comment
  CAS-BOT-BC169346  Alnus rubra Lewis S. Rose 1955-11-7 55189 San Mateo Tunitas stream banks 30 Comment
  POM192775  Alnus rubra L. R. Abrams 1907-08 s.n. San Mateo Near Pescadero on road to Half-Moon Bay. Comment
  JROH175  Amaranthus albus John H. Thomas 1974-10-29 17650 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS23931  Amaranthus californicus L. R. Abrams 1902-9-2 2995 San Mateo Crystal Lake Comment
Read comments
Sep 5 2011
  RSA22216  Amaranthus powellii J. T. Howell 1938-5-1 13772 San Mateo Colma Canyon Comment
  SD39990  Ambrosia chamissonis Edith A. Purer 1932-7-18 4011 San Mateo Half Moon Bay on sand dunes Comment
  CAS-BOT-BC55526  Ambrosia psilostachya W. R. Dudley 1902-9-21 s.n. San Mateo On causeway over Crystal Springs Reservoir Comment
  RSA116659  Ambrosia psilostachya W. R. Dudley 1902-9-21 s.n. San Mateo Plants of the Santa Cruz Mountain Peninsula. On caushway [?] over Crystal Springs Reservoir. Comment
  POM139628  Amelanchier pallida A. D. E. Elmer 1903-05 4659 San Mateo Slates Creek. Comment
  RSA175131  Amelanchier pallida Robert F. Thorne 1963-6-9 32232 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower. 335 Comment
  CAS-BOT-BC136831  Amelanchier utahensis Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC136833  Amelanchier utahensis Elizabeth McClintock 1972-4-23 s.n. San Mateo Slope above Fern Rock Comment
  JROH1338  Amsinckia intermedia John H. Thomas 1973-3-12 16499 San Mateo Jasper Ridge Biological Preserve, Stanford University; above lake Comment
  JROH1356  Amsinckia intermedia H. J. Dengler 1972-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in the field by Sand Hill Road opposite Whiskey Hill Road Comment
  JEPS90282  Amsinckia lunaris Dean W. Taylor 1994-5-10 14276 B 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
  RSA0089730  Amsinckia lunaris W. R. Dudley 1894-4-27 s.n. San Mateo San Mateo Ravine. Santa Cruz Mountain Peninsula. Comment
  JROH1354  Amsinckia menziesii John Hunter Thomas 1987-5-15 24281 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  RSA88321  Amsinckia spectabilis Alice Eastwood 1915-6-13 4723 San Mateo Granada. Comment
  UCD15059  Anagallis arvensis A. Bennett 1977-5-29 40 San Mateo California, San Mateo Co.; 0.7 miles north of Hayne Road intersection along Highway 35 (Burlingane); 60 Comment
  POM204322  Anaphalis margaritacea I. L. Wiggins 1929-7-4 3784 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  CDA10065  Anaphalis margaritacea A. C. Browne 1950-8-12 San Mateo Alpine Creek. 0 Comment
  RSA19309  Angelica hendersonii L. S. Rose 1937-9-5 37647 San Mateo Mussel Rocks 61 Comment
  UC174202  Angelica hendersonii Katharine Brandegee San Mateo Tobin Comment
Read comments
Apr 5 2008
  UC648295  Angelica hendersonii Alice Eastwood, John Thomas Howell 1939-7-9 7441 San Mateo e of La Honda (Skyline Boulevard); Skyline Boulevard Comment
  UC306529  Angelica tomentosa A. D. E. Elmer July, 1903 4998 San Mateo southern end of Crystal Springs Lake Crystal Springs Lake Comment
  CAS-BOT-BC273177  Anisocarpus madioides L. R. A. 1902-5-20 2474 San Mateo Kings Mountain Comment
  CAS-BOT-BC273174  Anisocarpus madioides W. R. Dudley 1895-6-6 4209 San Mateo Santa Cruz Mountain Peninsula. Banks of Woods of Conifers near Pescadero Creek - also on summit of Big Basin Comment
  CAS-BOT-BC273175  Anisocarpus madioides W. R. Dudley 1900-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. By road near La Honda Summit 213 Comment
  UCD128894  Anisocarpus madioides W. A. Harvey; J. M. Tucker 1948-6-29 1704 San Mateo beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC280637  Anthoxanthum occidentale C. F. B. 1902-1-15 247 San Mateo West side King's Mountain Comment
  SEINET7614641 Image available Anthoxanthum occidentale A. D. E. Elmer 1902-1 4124 San Mateo King's Mt. Comment
  JROH201  Anthriscus caucalis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3601  Aphanes occidentalis John H. Thomas 1968-3-17 14195 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3606  Aphanes occidentalis John Hunter Thomas 1981-4-5 20269 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  RSA131269  Apocynum pumilum var. rhomboideum H. L. Mason 1931-7-14 s.n. San Mateo Pescadero Creek, La Honda Road. Comment
  CAS-BOT-BC451562  Aponogeton distachyos Peter Rubtzoff 1955-4-2 1767 San Mateo Skyline Blvd. near the junction of Chinese Cemetery Road. Comment
  SD71033  Aponogeton distachyos Peter Rubtzoff 1955-4-2 1767 San Mateo In a small pool near the road, Skyline Boulevard near the junction of Chinese Cemetery Road. (IPB 4/07) Comment
  UC311129  Aquilegia eximia A. D. E. Elmer June, 1903 4271 San Mateo Crystal Springs Lake Comment
  UC118822  Aquilegia formosa C. F. B. 1902-3-30 422 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC405898  Aquilegia formosa Peter Rubtzoff 1963-5-14 1353 San Mateo Brushy hills near the road east of Pilarcitos Lake Comment
  CAS-BOT-BC405899  Aquilegia formosa Phillip Wheeler 1965-3-28 s.n. San Mateo Columbine Gulch Comment
  CAS-BOT-BC17319  Arabis blepharophylla Walter Knight; Irja Knight 1965-4-25 1071 San Mateo San Bruno Mountains. Owl's Canyon. Comment
  CAS-BOT-BC17321  Arabis blepharophylla Alice Eastwood 1914-3-12 3753 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC17334  Arabis blepharophylla Peter H. Raven 1967-2-18 20828 San Mateo Off Crocker Avenue, Daly City, just south of San Francisco County Line. Comment
  CAS-BOT-BC17336  Arabis blepharophylla Reed Clark Rollins 1942-4-30 3006 San Mateo Southeast slope of the San Bruno Hills about 1 mile west of Brisbane. Comment
  RSA0125508  Arabis blepharophylla Lincoln Constance, R. Bacigalupi, C. R. Bell 1951-3-25 3369 San Mateo Southeast side of Colma Canyon 61 Comment
  JROH1915  Arbutus menziesii A. D. E. Elmer 1903-5-1 4515 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH1917  Arbutus menziesii John H. Thomas 1967-4-20 12711 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC24127  Arctostaphylos andersonii C. F. Baker 1902-1-15 271 San Mateo King's Mountain Comment
  CAS-BOT-BC24174  Arctostaphylos andersonii Roxania Strichfield 1914-2-28 33 San Mateo Portola Rd. Comment
  SEINET12001640  Arctostaphylos andersonii W. R. Dudley 1906-1 5 San Mateo Kings Mt., Santa Cruz Range, Santa Cruz Peninsula 610 Comment
  CAS-BOT-BC23503  Arctostaphylos crustacea Roxana S. Ferris 1918-3-27 738 San Mateo La Honda Road Comment
  CAS-BOT-BC23512  Arctostaphylos crustacea C. F. Baker 1902-3-18 327 San Mateo King's Mountain Comment
  CAS-BOT-BC23515  Arctostaphylos crustacea John Thomas Howell 1924-2-23 261 San Mateo King Mt. Comment
  CAS-BOT-BC25169  Arctostaphylos crustacea subsp. crinita Roman Gankin 1966-5-17 739 San Mateo ca. 0.4 mile NE of Peak Mountain of Montara Mountain Range 487 Comment
  JROH1928  Arctostaphylos crustacea subsp. crustacea Josephine D. Randall 1906-1-27 138 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1930  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-7-5 15665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD144585  Arctostaphylos crustacea subsp. crustacea Greg Escoto 2014-2-21 s.n. San Mateo San Pedro Valley Park, a county park located at 600 Oddstad Blvd. Along Hazelnut Trail. 152 Comment
  CAS-BOT-BC24729  Arctostaphylos glandulosa subsp. glandulosa John Kipping 1972-3-5 s.n. San Mateo Steep slope in upper Buckeye Canyon. Comment
  CAS-BOT-BC24487  Arctostaphylos imbricata J. H. Thomas 1961-5-7 9319 San Mateo San Bruno Mt. in northern part of county. 396 Comment
  CAS-BOT-BC24492  Arctostaphylos imbricata Arthur L. Menzies 1963-3-10 s.n. San Mateo San Bruno Hills, on far ridge se. of parking lot. Comment
  CAS-BOT-BC24499  Arctostaphylos imbricata B. A. Stein 1981-3-1 442 San Mateo San Bruno Mt., ne. summit ridge along Radio Rd. 396 Comment
  JEPS27359  Arctostaphylos imbricata Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7619 San Mateo lateral ridge below and se of end of paved ridgetop rd just e of KRON TV tower and station (on Guadalupe Valley side of mt.); San Bruno Mountain 304 Comment
  JEPS91231  Arctostaphylos imbricata Dean W. Taylor 1988-4-29 9584 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22d W of summit, 371 Comment
  RSA632766  Arctostaphylos imbricata Jon E. Keeley 1996-6-24 27565 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  SJSU5745  Arctostaphylos imbricata L. S. Rose 1955-2-23 55002 San Mateo TYPE LOCALITY; San Bruno Hills Comment
  UC1137193  Arctostaphylos imbricata G. Ward 1940-8-5 San Mateo San Bruno Mt. San Mateo Quadrangle Comment
  JEPS108597  Arctostaphylos montaraensis R. Raiche 1984-1-27 San Mateo Montara Mountain Comment
  UCD144586  Arctostaphylos montaraensis Greg Escoto 2014-2-21 s.n. San Mateo San Pedro Valley Park, a county park located at 600 Oddstad Blvd. Along Hazelnut Trail. 152 Comment
  CAS-BOT-BC38525  Arctostaphylos montaraensis Walter Knight; Irja Knight; James B. Roof; Gregory Whipple; Al Senenes 1969-9-22 2790 San Mateo 1 mi. w. of Scarper peak jct. enroute Montara Mt. on San Francisco Water Dept. property. 304 Comment
  SEINET11989201  Arctostaphylos montaraensis E. McClintock, Knight, W.; Knight, I. 1982-1 4641 San Mateo San Bruno Mountain 305 Comment
  CAS-BOT-BC27197  Arctostaphylos pacifica James B. Roof 1961-4-18 s.n. San Mateo NE face of San Bruno Mountain 335 Comment
  CDA28982  Arctostaphylos regismontana D. G. Kelch 2009-6-9 9 .395 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
Read comments
Aug 22 2011
  JEPS78657  Arctostaphylos regismontana Edward Lee 1936-1-26 1736 San Mateo junction King's Mt. Rd. and Skyline Blvd (summit of ridge); Cahill Ridge 609 Comment
  RSA636747  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24627 San Mateo NW side of Montara Mtn. 150 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
  UC1121491  Arctostaphylos tomentosa subsp. crinita G. E. Sindel 1935-7-31 319 San Mateo 1/2 mi n Pomponio Creek (near Plot #292); Santa Cruz Quadrangle Comment
  RSA636843  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24644 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636850  Arctostaphylos tomentosa subsp. crustacea S. H. Gudmonson 1978-3-22 18 San Mateo 2 miles north of Woodside Road on Kings Mountain Road. Comment
  UC762228  Arctostaphylos tomentosa subsp. crustacea R. F. Hoover 1941-2-12 4763 San Mateo nw Saratoga Summit Comment
  UCD51721  Arctostaphylos tomentosa var. crinita Roman Gankin 1959-2-22 325 San Mateo 1.2 miles from junction State Hwy 5 on King's Mt. Road, San Mateo County, California. Comment
  UCD51708  Arctostaphylos tomentosa var. tomentosiformis Roman Gankin 1959-3-22 325 San Mateo Kings Mountain Road, 1.2 miles east of junction with State Highway 5, ca. 5 miles west of Woodside, San Mateo County, California. Comment
  CAS-BOT-BC46825  Arctostaphylos uva-ursi Arthur L. Menzies 1963-3-10 s.n. San Mateo San Bruno Hills Comment
  JEPS108605  Arctostaphylos uva-ursi Roger Raiche 1984-7-18 10153 San Mateo San Bruno Mountain, Kamchatka Point Comment
  UCD52049  Arctostaphylos uva-ursi Roman Gankin 1959-3-25 328 San Mateo 1/4 mile east of KRON TV station transmitter. Associated with Baccharis hybrids, Lupinus and Ceanothus. San Mateo County, California. Comment
  SEINET11987339  Arctostaphylos uva-ursi var. suborbiculata J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4066 San Mateo Strybing Arboretum, San Francisco, Golden Gate Park, orig. from Kamchatka Point on San Bruno Mt Comment
  CAS-BOT-BC47707  Armeria maritima subsp. californica W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Beach Pasture, Pescadero Comment
  UCD98491  Armeria maritima subsp. californica Kathyrn L. Koch 1965-5-1 48 San Mateo Arroyo de los Frijoles Beach State Park, just south of State Highway 1 junction. Comment
  HSC23890  Arnica discoidea Mary Katherine Wicksten 1971-6-16 32 San Mateo Bank at Huddart Park, by Werder Flat Comment
  UCR224656  Arrhenatherum elatius J. Eide 2009-7-20 PDR- 1481186 San Mateo Santa Cruz Mountains; San Bruno Mountain, in the vicinity of San Bruno Comment
  RSA116788  Artemisia biennis Roxana S. Ferris 1924-10-6 4096 San Mateo Searville Lake on Portola Hwy. Comment
  RSA51401  Artemisia douglasiana L. S. Rose 1949-8-10 49155 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC93933  Artemisia douglasiana George Oberlander 1949-9-25 380 San Mateo San Francisco Watershed Reserve, along stream entering San Andreas Lake Comment
  CAS-BOT-BC93879  Artemisia dracunculus W. R. Dudley 1897-11-12 s.n. San Mateo San Francisquito Creek below Los Trancas Creek Comment
  CAS-BOT-BC93637  Artemisia pycnocephala Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains - Reservoir Hill, west-facing slope 137 Comment
  SEINET11853520  Artemisia pycnocephala E. A. Purer 1933-1 5387 San Mateo 2 mi S of Pigeon Point Comment
  UC484308  Artemisia pycnocephala C. B. Wolf 1930-11-5 1806 San Mateo along coastal bluffs s of Pescadero 7 Comment
  CAS-BOT-BC400510  Asarum caudatum A. D. E. Elmer 1903-6-1 4421 San Mateo Butano Creek Comment
  UC1136000  Asarum caudatum H. S. Yates 1935-5-8 5214 San Mateo Pescadero Creek; Santa Cruz (San Mateo) quadrangle 30 Comment
  CAS-BOT-BC400512  Asarum caudatum W. R. Dudley 1898-4-24 s.n. San Mateo Santa Cruz Mountain Peninsula. Near El Corte de Madera Creek Comment
  JROH428  Asclepias fascicularis Richard L. Garber 1971-7-13 57 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4578  Asparagus officinalis subsp. officinalis John Hunter Thomas 1991-11-21 25100 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing of San Francisquito Creek Comment
  POM57741  Aster chilensis B. Greene 1901-10-20 59 San Mateo Summit of Coast Range Comment
  RSA0025139  Aster chilensis Peter Rubtzoff, Roman Gankin 1975-9-11 8377 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. San Bruno Mountains. Comment
  RSA417642  Aster chilensis Edith A. Purer 1933-8-25 5521 San Mateo Spring Valley. Comment
  POM56936  Aster radulinus C. F. Baker 1902-9-15 1546 San Mateo Black Mt. Comment
  CAS-BOT-BC478065  Asteraceae H. A. Dutton 1900-5-6 s.n. San Mateo Santa Cruz Mountain Peninsula, Woodside Comment
  CAS-BOT-BC186755  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo Hills back of Redwood City Comment
  CAS-BOT-BC186757  Astragalus gambelianus Lois E. James 1947-4-11 1757 San Mateo Hills back of Redwood City Comment
  POM16331  Astragalus nuttallii C. F. Baker 1903-6-30 3358 San Mateo Pillar Point Comment
  CAS-BOT-BC177969  Astragalus nuttallii var. virgatus W. R. Dudley 1896-4-17 s.n. San Mateo Pasture near Pebble Beach, Pescadero - Santa Cruz Peninsula Comment
  CAS-BOT-BC177974  Astragalus nuttallii var. virgatus C. F. Leitholdt 1894-7-1 s.n. San Mateo Pescadero Comment
  CAS-BOT-BC177975  Astragalus nuttallii var. virgatus R. S. Ferris 1921-5-29 2185 San Mateo Pescadero, Pebble Beach Comment
  CAS-BOT-BC194427  Astragalus nuttallii var. virgatus Daniel Cohen 1953-5-9 98 San Mateo Beach at Pescadero Comment
  UC1537101  Astragalus nuttallii var. virgatus Gordon H. True Jr. 1936-6-14 511 San Mateo fairly open hillside on Salada Beach Road 1 mi from Skyline Blvd.; on Salada Beach Road 182 Comment
  SD37525  Astragalus nuttallii var. virgatus Edith A. Purer 1933-8-13 5405 San Mateo Small bottom, Santa Clara Valley, near Baden Station. Comment
  SEINET948579  Astragalus nuttallii var. virgatus W. R. Russell 1966-1 s.n. San Mateo On side of hill at north end of Princeton Beach (ca. 2 miles south of Moss Beach) 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
  UC1191360  Atriplex hortensis Malcolm A. Nobs, S. Galen Smith 1949-8-27 1619 San Mateo salt marshes e Redwood City; e of Redwood City Comment
  SEINET3409822 Image available Atriplex leucophylla Lewis S. Rose 1933-7-20 33305 San Mateo Sea beach, Granada, San Mateo County, California. Comment
  UC662519  Atriplex leucophylla L. S. Rose 1941-9-27 41460 San Mateo Princeton Princeton (on ocean beach sand) Comment
  JROH4840  Avena barbata John H. Thomas 1967-5-12 12870 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU16016  Avena barbata John Rawlings, Ken Hickman 2016-5-26 1812 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH1  Azolla John Hunter Thomas 1981-6-4 20669 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing of San Francisquito Creek 81 Comment
  CAS-BOT-BC68329  Azolla filiculoides Roxana S. Ferris 1920-10-1 2102 San Mateo Santa Cruz Mountain Peninsula - Mud Lakes, Coalmine Ridge Comment
  RSA226539  Baccharis douglasii E. K. Balls 1969-9-18 12172 San Mateo 5 miles south of junction Highway 84 and Highway 35 along La Honda Road. Comment
  JROH545  Baccharis glutinosa John Hunter Thomas 1992-7-24 25385 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  CAS-BOT-BC99510  Baccharis pilularis C. F. B. 1902-10-1 1740 San Mateo Pillar Point Comment
  CAS-BOT-BC99522  Baccharis pilularis Ned Cahill 1974-4-30 240 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC99525  Baccharis pilularis W. R. Dudley 1895-10-19 s.n. San Mateo Near San Francisquito Creek, toward Searsville Comment
  POM54355  Baccharis pilularis A. D. E. Elmer 1903-02 4576 San Mateo Portola Comment
  LA203030  Baccharis pilularis subsp. pilularis C. B. Wolf; 1934-11-9 6240 San Mateo 200 yds. S of Pigeon Point Lighthouse 15 Comment
  CAS-BOT-BC16635  Barbarea orthoceras Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills. Comment
  JROH1440  Barbarea orthoceras John H. Thomas 1968-3-17 14183 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3925  Bellardia trixago John Hunter Thomas 1986-6-7 24083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3927  Bellardia trixago John Hunter Thomas 1988-4-28 24419 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA159407  Bellardia trixago John H. Thomas 1961-5-14 9376 San Mateo Just north of dam on San Mateo Creek. 122 Comment
  CAS-BOT-BC75866  Berberis pinnata W. R. Dudley 1896-11-14 s.n. San Mateo Santa Cruz Peninsula. Hill west of Crystal Springs Lake. Comment
  CAS-BOT-BC102030  Bidens laevis Ned Cahill 1974-5-18 298 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH4422  Bolboschoenus maritimus subsp. paludosus Toni Corelli 2009-8-12 296 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake, dry lake bed in mud. 103 Comment
  CAS-BOT-BC95347  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo La Honda Comment
  UC140513  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo Pacific Coast, La Honda La Honda; Pacific Coast, La Honda Comment
  CAS-BOT-BC95352  Bowlesia incana W. R. Dudley 1894-3-27 s.n. San Mateo Above falls at mouth of Purisima Creek Comment
  CDA36483  Brachypodium sylvaticum Ellen Gartside 2011-7-18 s.n. San Mateo Woodside; on deer trail north east from trail below Old La Honda Road. Comment
  JROH5719  Brachypodium sylvaticum John Rawlings 2015-10-4 1651 San Mateo Jasper Ridge Biological Preserve, Stanford University; south of Middle Lake, ranging from Preserve boundary fence south of Caretaker's Residence east into riparian woodland. 101 Comment
  CDA37735  Brachypodium sylvaticum Breckenridge/Filippini 2010-7-22 s.n. San Mateo Woodside; across a number of properties. 0 Comment
  CAS-BOT-BC29992  Brassica juncea Fred Hemphill 1973-5-14 814 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  JROH5555  Brassica nigra Toni Corelli 2013-6-6 380 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12, 100 meters north of Mapache Gate. 127 Comment
  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
  SEINET3292600 Image available Brassica rapa David D. Keck 1932-2-16 1377 San Mateo Portola, in cultivated orchards, roadside Potola Comment
  CAS-BOT-BC186699  Brassicaceae Fred Hemphill 1973-3-17 713 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  UCD57153  Briza maxima Anonymous 1991-5-27 24 San Mateo Along Lake Merced, in Daly City. Comment
  CAS-BOT-BC145325  Briza minor H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Just east of Jasper on south side of roadside. Comment
  CAS-BOT-BC145327  Briza minor Copeland 1903-5-24 3257 San Mateo Above Crystal Springs Lake. Comment
  CAS-BOT-BC145341  Briza minor Walter Knight; Irja Knight 1965-4-24 1027 San Mateo San Bruno Mountain. Point San Bruno. Comment
  CAS-BOT-BC145343  Briza minor A. D. E. Elmer 1903-5-1 4912 San Mateo Crystal Springs Lake. Comment
  JROH4888  Briza minor John Hunter Thomas 1983-4-5 21320 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the low-flow crossing 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
  CAS-BOT-BC484342  Brodiaea elegans subsp. elegans Philip C. Wheeler 1965-6-21 s.n. San Mateo Sierra Point, San Bruno Mountain 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
  SEINET12044664  Brodiaea terrestris P. R. Hichborn 1920-1 s.n. San Mateo near Spring Valley Lakes, Santa Cruz Mountain Peninsula Comment
  JROH4593  Brodiaea terrestris subsp. terrestris John Hunter Thomas 1986-5-8 24030 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC483170  Brodiaea terrestris subsp. terrestris Ned Cahill 1974-4-18 122 San Mateo Near the intersectoin of Canada and Edgewood Roads about 3 miles westward from Redwood City Comment
  CAS-BOT-BC483172  Brodiaea terrestris subsp. terrestris Alice Eastwood 1912-6-10 334 San Mateo Crystal Springs Comment
  JROH4968  Bromus berteroanus Richard Hobbs 1982-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Area "C" Serpentine, within fertilized plot in enclosure. Comment
  CDA7725  Bromus carinatus D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  RSA195508  Bromus carinatus John H. Thomas 1966-4-13 11558 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  SBBG32439  Bromus carinatus L. S. Rose 1963-4-27 63003 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  CAS-BOT-BC148981  Bromus carinatus var. carinatus Peter H. Raven 1950-6-3 2253 San Mateo Woods around San Andreas Lake. 121 Comment
  CAS-BOT-BC148990  Bromus carinatus var. carinatus John H. Thomas 1961-5-7 9256 San Mateo San Bruno Mountain in northern part of county. 914 Comment
  CAS-BOT-BC148992  Bromus carinatus var. carinatus John H. Thomas 1961-5-14 9374 B San Mateo San Francisco Watershed Reserve. Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. 152 Comment
  CAS-BOT-BC149019  Bromus carinatus var. carinatus R. E. Frenkel 1963-12-7 327 San Mateo San Francisco Water District. Whiting Ridge Road, ca. 0.8 mile southwest of Spring Valley Road, at Fire Warden's Gate. Comment
  CAS-BOT-BC149024  Bromus carinatus var. carinatus Dean Wm. Taylor 1988-3-30 9492 San Mateo Santa Cruz Mountains. San Bruno Mountains, northern slope of southeast ridge of the mountain, near the ridgecrest. 237 Comment
  CAS-BOT-BC149025  Bromus carinatus var. carinatus Le Roy Abrams 1902-5-11 2462 San Mateo Crystal Springs. Comment
  JROH4901  Bromus carinatus var. carinatus John Rawlings 2013-4-23 1143 San Mateo Jasper Ridge Biological Preserve, Stanford University. Shaded, northwest-facing slope of small drainage about 100 meters upstream from Trail 11 at the upper footbridge. 133 Comment
  UC1037111  Bromus carinatus var. carinatus Leo Whitney 1935-3-20 2268 San Mateo Bayshore Highway 10 mi s of Cliff House; San Francisco, Bayshore Highway Comment
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Nov 12 2011
  CAS-BOT-BC148764  Bromus carinatus var. marginatus Ira L. Wiggins 1929-5-10 3672 San Mateo At Pigeon Point. Comment
  CAS-BOT-BC148765  Bromus carinatus var. marginatus Walter Knight; Irja Knight 1964-4-13 s.n. San Mateo San Bruno Mountain. San Bruno Mountain Power Line Ridge. Comment
  CAS-BOT-BC183616  Bromus carinatus var. marginatus Peter Rubtzoff 1976-5-22 8548 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  SJSU15317  Bromus commutatus John Rawlings 2011-5-27 1090 San Mateo Edgewood Preserve; just outside preserve at HWY280 overpass along Edgewood Trail. 168 Comment
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Feb 18 2015
  OBI23249  Bromus diandrus Ira L. Wiggins 1975-5-26 22153 San Mateo Bed of San Francisquito Crk, ca 150 m upstream from Chaucer/Pope St bridge, Menlo Comment
  SEINET3922418  Bromus diandrus Robert A. Norris 1984-3-21 4657 San Mateo Brushy W-facing slope of Blue Blossom Hill in the San Bruno Mts.; 0 Comment
  UCSB18541  Bromus diandrus Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 mi SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mtns 152 Comment
  CAS-BOT-BC155130  Bromus hordeaceus John H. Thomas 1961-5-13 9342 San Mateo Franklin Point. 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
  JROH4915  Bromus hordeaceus Duncan M. Porter 1960-4-29 667 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch Comment
  JROH4917  Bromus hordeaceus John H. Thomas 1963-5-12 10080 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4928  Bromus hordeaceus Winkie Lennihan 1990-4-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along north side of Rd. F in grassy area east of the serpentine contact 161 Comment
  JROH4930  Bromus hordeaceus John Rawlings 2010-4-28 1092 San Mateo Jasper Ridge Biological Preserve, Stanford University; on slope south of the visitor parking lot 119 Comment
  POM286725  Bromus hordeaceus Lyman Benson 1931-4-26 2757 San Mateo Behind Stanford University. Corte Madre Creek. Santa Cruz Mtn. Range Comment
  UCD58780  Bromus hordeaceus L. Whitney 1935-3-20 s.n. San Mateo Bayshore Highway--10 miles south of Cliff House, San Francisco. Comment
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Nov 12 2011
  CAS-BOT-BC162229  Bromus maritimus John H. Thomas 1963-5-20 10151 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 miles northwest of Santa Cruz. Comment
  SEINET10520334  Bromus molliformis Delzie Demaree 1932-5-16 Demaree 9141 San Mateo Spring Valley Road. Comment
  JROH5650  Bromus vulgaris John Rawlings 2014-5-28 1245 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry bed of San Francisquito Creek at at the Dennis Martin site. 71 Comment
  CAS-BOT-BC233710  Buddleja davidii John H. Thomas 1968-12-18 14873 San Mateo About 0.9 miles inland from the coast along road toward Pescadero Comment
  RSA140817  Buddleja davidii John H. Thomas 1960-6-25 8794 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
  UC964761  Cakile maritima Herbert L. Mason 1944-3-17 San Mateo Moss Beach Comment
  CAS-BOT-BC36949  Cakile maritima var. maritima John H. Thomas 1963-5-20 10116 San Mateo Ano Nuevo Island about one half mile off shore and about 20 mile northwest of Santa Cruz. Comment
  CAS-BOT-BC438531  Calandrinia ciliata H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH3321  Calandrinia ciliata John H. Thomas 1967-5-10 12847 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3326  Calandrinia ciliata John H. Thomas 1976-4-28 18097 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC438533  Calandrinia ciliata Philip C. Wheeler 1965-5-12 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine. Comment
  JROH1634  Callitriche marginata John H. Thomas 1968-3-31 14259 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA116749  Callitriche trochlearis W. R. Dudley 1904-4-23 s.n. San Mateo Santa Cruz Mtn Peninsula, crow foot pond on alpine road opposite the Fitzpatrick place. Comment
  CAS-BOT-BC492213  Calochortus albus Fred Hemphill 1973-5-6 757 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC492167  Calochortus albus Paul F. Covel 1936-4-24 271 San Mateo ft Saratoga Grade Comment
  CAS-BOT-BC492211  Calochortus albus John H. Thomas 1971-5-2 15859 San Mateo Serpentine fields bordered by chaparral, near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City. 304 Comment
  JROH4618  Calochortus argillosus John H. Thomas 1961-6-14 9539 San Mateo Jasper Ridge Biological Preserve, Stanford University; in "parking area" at Searsville end Comment
  JROH4625  Calochortus argillosus John Hunter Thomas 1977-6-7 18734 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4634  Calochortus luteus John H. Thomas 1974-5-29 17404 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM169470  Calochortus tolmiei C. F. Baker 1902-5-10 796 San Mateo Kings Mountain. Comment
  CAS-BOT-BC493993  Calochortus tolmiei Carl B. Wolf 1929-5-22 3722 San Mateo Near base of LaHonda grade, Santa Cruz Mts. 182 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
  POM51530  Calycadenia multiglandulosa subsp. cephalotes C. F. Baker 1901-10-20 53 San Mateo Summit of Coast Range Comment
  CHSC42068  Calystegia purpurata Rusti Gammon 1986-3-30 13 San Mateo Ca. 8.1 mi sw of Saratoga, 4.1 mi w off Hwy 9. 569 Comment
  CAS-BOT-BC224649  Calystegia purpurata subsp. purpurata George Oberlander 1949-7-24 308 San Mateo San Franciso Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC224668  Calystegia purpurata subsp. purpurata Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Lower slope on south side above Olivet Cemetery Comment
  CAS-BOT-BC224669  Calystegia purpurata subsp. purpurata Fred Hemphill 1973-4-22 734 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1840  Calystegia purpurata subsp. purpurata John H. Thomas 1969-6-4 15112 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD67927  Calystegia subacaulis Ricky D. Pearce 1978-5-6 18 San Mateo On Tom Sawyer Camp Road on the E. bank of Crystal Springs Reservoir. Comment
  SD38657  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1934-8-14 5916 San Mateo Half Moon Bay. Comment
  UC1736718  Camissoniopsis hirtella Dean W. Taylor 1989-8-1 10411 San Mateo Montara Mountain, saddle between North Peak and Montara Knob 518 Comment
  JROH1643  Campanula griffinii John H. Thomas 1975-5-26 17905 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10840327  Campanula prenanthoides Leithold 1894-7-28 LEITHOLD s.n. San Mateo LA HONDA ROAD Comment
  CAS-BOT-BC37159  Capsella bursa-pastoris John H. Thomas 1965-4-29 10601 San Mateo San Bruno Mountain in northern part of county. 396 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-BC37663  Cardamine californica W. R. Dudley 1904-4-7 s.n. San Mateo Santa Cruz Mountain Peninsula. By Los Francos Creek 1.5 mile above Judge Allens. Comment
  CAS-BOT-BC37681  Cardamine californica George Oberlander 1950-2-1 453 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  POM143341  Cardamine californica var. integrifolia A. D. E. Elmer 1903-04 4468 San Mateo Portola. Comment
  JROH1488  Cardamine oligosperma Le Roy Abrams 1902-4-5 2308 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  UC1301005  Cardamine oligosperma Helen K. Sharsmith 1963-3-23 5247 San Mateo Alpine Creek Canyon San Francisco Bay Region, Santa Cruz Mountains, Alpine Creek 243 Comment
  UCSB18657  Cardamine oligosperma Schulte, John 1963-4-9 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  SJSU15404  Cardionema ramosissimum Toni Corelli 2010-4-9 669 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica, CA 36 Comment
  CDA6896  Carduus tenuiflorus D. G. Kelch, B. G. Baldwin 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  CAS-BOT-BC281835  Carduus tenuiflorus Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC281837  Carduus tenuiflorus George Oberlander 1950-5-21 895 San Mateo San Francisco Watershed Reserve. San Andreas Valley Comment
  HSC23961  Carduus tenuiflorus Mary Katherine Wicksten 1971-7-15 27 San Mateo Huddart Park Comment
  UCSC006297  Carex Randall Morgan 2001-10-19 3778 San Mateo Half Moon Bay, Moist flat on RMC Lonestar property, upper San Vincente Ck watershed Comment
  JEPS48963  Carex amplifolia James G. Daly 1934-1 424 San Mateo upper Corte de Madera Canyon Comment
  JROH4311  Carex amplifolia John Rawlings, Toni Corelli 2012-5-15 1112 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek at Road H crossing near boundary fence. 82 Comment
  NY25691  Carex amplifolia L. Abrams 1915-6-14 5563 San Mateo King's Mountain Road Comment
  CAS-BOT-BC19328  Carex barbarae J. H. Thomas 1958-8-1 7371 San Mateo Sand dunes about 0.5 mile north of mouth of Pescadero Creek. 0 Comment
  JROH4316  Carex barbarae John Hunter Thomas 1986-5-17 24049 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
  SEINET7552599 Image available Carex bolanderi Lewis S. Rose 1933-6-23 s.n. San Mateo Kings Mountain Steams. Comment
  CAS-BOT-BC34073  Carex brevicaulis John Thomas Howell 1938-5-1 13774 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC18928  Carex densa A. D. E. Elmer 1903-6-1 4428 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC18944  Carex densa Margaret A. Barry 1938-5-8 s.n. San Mateo On Coal Mine Ridge. Comment
  CAS-BOT-BC18946  Carex densa Kellogg; Brannan 1870-6-1 s.n. San Mateo San Gregorio Creek. Comment
  POM79201  Carex densa A. D. E. Elmer 1903-06 4428 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC18933  Carex densa Lewis S. Rose 1936-5-24 36299 San Mateo East of Burlingame. 60 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
  JROH4342  Carex globosa John Hunter Thomas 1990-5-8 24851 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rock. Comment
  CAS-BOT-BC21813  Carex harfordii W. R. Dudley 1906-6-10 s.n. San Mateo Near pond on So. Cahill Ridge. Comment
  RSA789960  Carex harfordii Peter Rubtzoff 1975-5-21 7968 San Mateo San Bruno Mtns: Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH4354  Carex nudata John Rawlings 2012-5-15 1113 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few feet downstream of the low-flow crossing, northern edge of San Francisquito Creek. 80 Comment
  JROH4356  Carex nudata John Hunter Thomas 1979-6-12 19587 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  CAS-BOT-BC119348  Carex obnupta V. F. Hesse 1953-8-22 1190 San Mateo Butano Ridge. 609 Comment
  CAS-BOT-BC117646  Carex serratodens LeRoy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  CAS-BOT-BC539276  Carex subbracteata John Rawlings; Sara Timby; Toni Corelli 2016-4-23 1731 A San Mateo Along Bean HOllow bluff trail, W of Hwy 1, S of Pescadero 8 Comment
  UCR279903  Carex subbracteata Peter Rubtzoff 1975-5-21 7975 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  SEINET10750023  Carex subbracteata John Thomas Howell 1938-5-1 Howell 13783 San Mateo Near South San Francisco. Comment
  SEINET7577065 Image available Carex subbracteata John Thomas Howell 1938-5-1 13778 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC116823  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5248 San Mateo Lobitas Comment
  CAS-BOT-BC115508  Carex tumulicola Wilhelm Nikolaus Suksdorf 1928-7-5 12402 San Mateo Seeds from Crystal Springs Lake (grown in garden at Bingen, Wash) Comment
  CAS-BOT-BC115509  Carex tumulicola Wilhelm Nikolaus Suksdorf 1913-6-20 377 San Mateo Damp or springy places, Crystal Springs Lake. Comment
  UC824947  Carex vesicaria var. major W. R. Dudley May, 1894 San Mateo between Woodside and Crystal Springs; Santa Cruz Mountain Peninsula Comment
  CDA42246  Carthamus creticus J. Beall 2002-9-17 PDR 065864 San Mateo San Francisco Bay Area; 1/4 mi E of Skyline Blvd at Windy Hill along fence. 0 Comment
  UC84186  Carthamus lanatus T. S. Brandegee 1891-7-1 San Mateo South San Francisco Comment
  JEPS6875  Castilleja Rimo Bacigalupi with G. T. Robbins 1954-6-18 4549 San Mateo along Skyline Blvd, 1 1/2 mi N of the crossing of the page Mill (Alpine) road Comment
  CAS-BOT-BC249188  Castilleja affinis J. H. Thomas 1954-4-3 3831 San Mateo Pilarcitos Creek Road, 3.5 miles NE of Halfmoon [Half Moon] Bay 121 Comment
  POM15472  Castilleja affinis C. F. Baker 1903-4-6 1877 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  SEINET12288585  Castilleja affinis Cummings, McCallum 1933-1 s.n. San Mateo in Spring Valley Comment
  UCSC000665  Castilleja affinis H. S. Yates 1935-3-2 5010 San Mateo 0.5 mile S.E. of Pigeon Pt. Pigeon Pt - Santa Cruz 30 Comment
  JEPS25440  Castilleja affinis subsp. affinis John Weiler 1961-3-22 6134 San Mateo 0.2 mi s Devil's Slide (about 2.5 mi n of community of Montara, n end of Montara Mtn); Montara Mtn. Comment
  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
  JROH3943  Castilleja affinis subsp. affinis John H. Thomas 1976-5-26 18156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC444883  Castilleja affinis subsp. affinis R. L. Pendleton 1907-4-2 550 San Mateo w of Los Gatos 243 Comment
  JEPS103888  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-6 7862 San Mateo 3 mi E of Fort Bragg, on route 20 Comment
  JEPS9140  Castilleja ambigua subsp. ambigua N. L. Gardner 1914-7-11 San Mateo Moss Beach Comment
  POM190538  Castilleja ambigua subsp. ambigua D. D. Keck 1932-4-29 1453 San Mateo Burlington - San Mateo city limits, Bayshore Highway. Along San Francisco Bay. Comment
  UC1537444  Castilleja ambigua subsp. ambigua Gordon H. True Jr. 1936-6-7 488 San Mateo 2 mi s Pescadero 15 Comment
  UC406881  Castilleja ambigua subsp. ambigua David D. Keck 1927-6-10 394 San Mateo Montara Point; Radio Station 0 Comment
  JROH3971  Castilleja attenuata Carol Zabel 1989-4-19 9 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC1814  Castilleja densiflora subsp. densiflora V. Holt 1943-4-21 San Mateo Comment
  JEPS127791  Castilleja densiflora subsp. densiflora Adam C. Schneider with C. Matt Guilliams 2013-4-7 62 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH3976  Castilleja densiflora subsp. densiflora Duncan M. Porter 1961-4-8 749 San Mateo Jasper Ridge Biological Preserve, Stanford University; near gate on top of ridge Comment
  CHSC24846  Castilleja exserta B. A. Rosene 1976-4-18 4 San Mateo Ca. 2.4 km nw of entrance to Calif. State Game Refuge. 182 Comment
  CHSC42072  Castilleja foliolosa J. P. Arts 1986-3-30 17 San Mateo Ca. 4.1 miles w of Saratoga on Hwy. 9, ca. 8 miles n of Boulder Creek. 914 Comment
  CAS-BOT-BC243828  Castilleja latifolia David D. Keck 1932-5-11 1768 San Mateo Two miles north of San Gregorio Comment
  CAS-BOT-BC243830  Castilleja latifolia John H. Thomas 1965-4-29 10613 San Mateo San Bruno Mountainin northern part of county 396 Comment
  CAS-BOT-BC243832  Castilleja latifolia Walter Knight 1964-9-14 829 San Mateo Peak Mt., Montara Range Comment
  POM21237  Castilleja latifolia Katherine Brandegee 1917-7-22 s.n. San Mateo Mussel Rock Station, Ocean Shore RR Comment
  SEINET12288716  Castilleja latifolia Unknown 1932-1 8989 San Mateo between Sky Line Drive & Half Moon Bay Comment
  JROH3989  Castilleja rubicundula subsp. lithospermoides L. R. Abrams 1934-4-18 13568 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH3992  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1955-5-6 4984 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge 182 Comment
  SBBG32465  Castilleja rubicundula subsp. lithospermoides L. S. Rose 1966-5-8 66034 San Mateo Emerald Lake, W of Redwood City 91 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
  JEPS29419  Castilleja wightii L. R. Heckard 1961-7-16 1267 San Mateo near San Bruno Mt. summit; San Bruno Mt. 304 Comment
  JEPS47394  Castilleja wightii L. R. Heckard 1964-6-24 1399 San Mateo up from Atlanta St. in Daly City (along new road up Colma Canyon); Colma Canyon, Daly City 121 Comment
  JEPS4857  Castilleja wightii Rimo Bacigalupi with L. Constance and C. R. Bell 1951-3-25 3203 San Mateo outskirts Daly City (slopes of Colma Canyon, nw end of San Bruno Hills); San Bruno Hills, Colma Canyon Comment
  JEPS85728  Castilleja wightii L. R. Heckard 1964-6-24 1396 San Mateo near San Bruno Mt. summit (n of transmitting stations); San Bruno Mt. 304 Comment
  JEPS88833  Castilleja wightii T. I. Chuang 1991-7-20 7879 San Mateo hills just s Rockaway Beach Comment
  RSA428367  Castilleja wightii E. S. Spalding 1924-6-28 s.n. San Mateo Moss Beach Comment
  UC1327236  Castilleja wightii John T. Doyen 1966-3-28 37 San Mateo San Bruno Mountains; near Radio Towers on top Comment
  UC198264  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore Railroad Comment
  JEPS34453  Castilleja wightii L. R. Heckard 1963-7-18 1341 San Mateo 2.7 mi s Calif. Hwy. 1 road junction with Pescadero road (along Calif Hwy. 1); Bean Hollow Beach County Park (Arroyo de los Frijoles) Comment
  POM20827  Castilleja wightii Katherine Brandegee 1917-7-15 s.n. San Mateo Moss Beach between the station and the bluffs. Comment
  RSA622154  Castilleja wightii John A. Churchill 1974-4-14 744121 San Mateo Half Moon Bay. Route 1 behind Half Moon Bay. Comment
  CAS-BOT-BC39387  Caulanthus lasiophyllus H. A. Dutton 1900-2-1 s.n. San Mateo Santa Cruz Peninsula. Comment
  CAS-BOT-BC48307  Ceanothus cuneatus Volney Rattan 1884-3-1 s.n. San Mateo Rattan Ranch, Woodside Comment
  CAS-BOT-BC48392  Ceanothus cuneatus var. cuneatus Roxana S. Ferris 1936-7-2 9308 San Mateo Skyline Blvd. south of junction of Alpine Creek Road Comment
  CAS-BOT-BC48395  Ceanothus cuneatus var. cuneatus A. D. E. Elmer 1903-3-1 4578 San Mateo Portola Comment
  JROH3521  Ceanothus cuneatus var. cuneatus Duncan M. Porter 1961-2-8 741 San Mateo Jasper Ridge Biological Preserve, Stanford University. N slope of ridge below picnic area near crest at N end of ridge Comment
  JROH3526  Ceanothus cuneatus var. cuneatus Ann Lambrecht 2004-3-10 8 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11. Chaparral-woodland transition. Comment
  CAS-BOT-BC51594  Ceanothus oliganthus var. sorediatus A. D. E. Elmer 1903-5-1 4479 San Mateo Portola Comment
  CAS-BOT-BC51596  Ceanothus oliganthus var. sorediatus H. A. Borthwick 1920-4-21 74 San Mateo Strawberry Bend, Corte Madera Cr. Comment
  CAS-BOT-BC51605  Ceanothus oliganthus var. sorediatus Brandegee 1889-4-1 38 San Mateo Mts. bet. San Francisco and Santa Cruz Comment
  CAS-BOT-BC51609  Ceanothus oliganthus var. sorediatus William R. Dudley 1904-4-7 s.n. San Mateo Los Trancos Cr. Comment
  UC311387  Ceanothus oliganthus var. sorediatus A. D. E. Elmer May 1903 4479 San Mateo Portola Comment
  POM301652  Ceanothus oliganthus var. sorediatus Carl B. Wolf 1941-7-31 11113 San Mateo Santa Cruz Mts, 1 miles E of summit of La Honda Grade. 396 Comment
  HSC23787  Ceanothus papillosus Mary Katherine Wicksten 1971-6-23 95 San Mateo Huddart Park, Archery Flat Comment
  RSA136268  Ceanothus papillosus var. roweanus Stewart H. Burnham 1894-4-29 1577 San Mateo Above woodside. Comment
  CAS-BOT-BC52284  Ceanothus thyrsiflorus L. R. A. 1901-4-20 1549 San Mateo King's Mountain Comment
  CAS-BOT-BC52290  Ceanothus thyrsiflorus Ira L. Wiggins 1925-4-1 1654 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  CAS-BOT-BC52291  Ceanothus thyrsiflorus Ira L. Wiggins 1925-5-24 1744 San Mateo Along county road from Pescadero to Pebble Beach Comment
  CAS-BOT-BC52311  Ceanothus thyrsiflorus H. A. Borthwick 1920-4-28 s.n. San Mateo Crystal Springs Lake Comment
  HSC18329  Ceanothus thyrsiflorus L. S. Rose 1963-4-27 63004 San Mateo La Honda 122 Comment
  JEPS85551  Ceanothus thyrsiflorus Craig Dremann 1986-8-30 322 San Mateo W of La Honda (Hwy 84 (Woodside-La Honda rd), 100 ft W of mile marker 6.68) Comment
  POM136452  Ceanothus thyrsiflorus Stewart H. Burnham 1894-4-21 1586 San Mateo [Unspecified] Comment
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Aug 11 2010
  POM267961  Ceanothus thyrsiflorus Jens Clausen 1941-7-1 1873 San Mateo Summit of Montara Mtn 274 Comment
  RSA130955  Ceanothus thyrsiflorus James I. McMurphy 1906-5-8 12 San Mateo Woodside Santa Cruz Mts. 122 Comment
  UC204089  Ceanothus thyrsiflorus A. D. E. Elmer June, 1903 4603 San Mateo Lake San Andreas Comment
  JROH585  Centaurea calcitrapa John H. Thomas 1970-7-5 15671 San Mateo Jasper Ridge Biological Preserve, Stanford University; by bridge Comment
  CAS-BOT-BC274585  Centaurea calcitrapa G. H. Mallory 1919-7-21 s.n. San Mateo Santa Cruz Mountain Peninsula. Near San Mateo Comment
  CAS-BOT-BC274587  Centaurea calcitrapa George Oberlander 1949-9-25 395 San Mateo San Francisco Watershed Reserve. North of San Andreas Lake Comment
  JROH599  Centaurea melitensis John H. Thomas 1963-6-23 10170 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of ridge Comment
  RSA133890  Centaurea melitensis John H. Thomas 1958-6-11 7224 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  HSC23977  Centaurea melitensis Mary Katherine Wicksten 1971-6-24 118 San Mateo Huddart Park, side of park entrance Comment
  RSA17963  Centaurea solstitialis C. B. Wolf 1927-8-13 716 San Mateo Woodside Comment
  HSC23937  Centaurea solstitialis Mary Katherine Wicksten 1971-7-20 178 San Mateo Huddart Park, by Redwood Shelter. Comment
  UC763213  Centaurium davyi R. F. Hoover 1941-5-20 5112 San Mateo near Martin Creek (grade above Portola on La Honda road) Comment
  POM296667  Centaurium davyi L. S. Rose 1941-6-19 41280 San Mateo Kings Mountain Road, three miles west of Woodside. 183 Comment
  POM287523  Centaurium venustum Lyman Benson 1930-4-17 2068 San Mateo Stanford University. 122 Comment
  CAS-BOT-BC272818  Centromadia parryi subsp. parryi W. R. Dudley 1908-10-4 s.n. San Mateo Near Laguna Salada Comment
  CAS-BOT-BC272819  Centromadia parryi subsp. parryi Lewis S. Rose 1931-8-28 s.n. San Mateo Salada Comment
  SEINET2030222 Image available Centromadia pungens L. S. Rose 1941-10-10 41464 San Mateo Fields along Bayshore Boulevard, San Mateo 3 Comment
  SJSU15233  Centromadia pungens subsp. pungens Toni Corelli 2013-8-16 455 San Mateo Ravenswood Open Space Preserve, east end of Bay Road, East Palo Alto 4 Comment
  CAS-BOT-BC279321  Centromadia pungens subsp. pungens John Thomas Howell 1956-9-19 31877 San Mateo 2.3 miles s. of Lake Merced on Skyline Blvd. Comment
  CAS-BOT-BC279323  Centromadia pungens subsp. pungens L. S. Rose 1941-10-10 41463 San Mateo Along the Bayshore Boulevard, San Mateo 3 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-BC384959  Cerastium arvense David D. Keck 1933-5-11 2303 San Mateo Montara Summit, Montara Mountain Comment
  CAS-BOT-BC384880  Cerastium arvense Elizabeth McClintock; Paul Reeberg 1989-3-21 s.n. San Mateo San Bruno Mountains. On Bitter Cherry Ridge 182 Comment
  JROH1689  Cerastium glomeratum John H. Thomas 1961-4-8 9078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1692  Cerastium glomeratum John H. Thomas 1969-4-20 14897 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1084416  Cerastium glomeratum G. Thomas Robbins 1937-4-11 101 San Mateo near Spring Valley Lakes along rd. to Woodside Comment
  CAS-BOT-BC400168  Ceratophyllum demersum Roxana S. Ferris 1920-9-3 2042 San Mateo Santa Cruz Mountain Peninsula. In upper Mud Lake, Coal Mine Ridge Comment
  CAS-BOT-BC400169  Ceratophyllum demersum W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. W. twin-pond near Mussel Rock Comment
  POM139639  Cercocarpus betuloides A. D. E. Elmer 1903-05 4530 San Mateo Searsville Lake Comment
  RSA112373  Cercocarpus betuloides James I. McMurphy 1906-4-4 18 San Mateo Los Francos Creek, Santa Cruz Mts 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
  JROH3617  Cercocarpus betuloides var. betuloides L. R. Abrams 1916-3-25 5573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3628  Cercocarpus betuloides var. betuloides John Hunter Thomas 1987-5-19 24297 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176411  Chenopodium ambrosioides var. ambrosioides John H. Thomas 1964-10-2 10514 a San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  UC1191353  Chenopodium berlandieri Malcolm A. Nobs and S. Galen Smith 1949-8-26 1605 San Mateo marshy stream bank about 1 mi s Pigeon Point Comment
  CHSC57077  Chenopodium californicum Steven Triano 1988-5-24 212 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  JROH1819  Chenopodium californicum John H. Thomas 1966-4-29 11585 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1822  Chenopodium californicum D. E. Breedlove 1971-5-31 19351 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC497724  Chlorogalum pomeridianum Fred Hemphill 1973-5-14 806 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC499310  Chlorogalum pomeridianum var. divaricatum Elizabeth McClintock 1963-6-9 s.n. San Mateo Plants of San Bruno Mountain Comment
  JROH4643  Chlorogalum pomeridianum var. pomeridianum T. H. Lamb 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge near the Searsville Dam Comment
  CAS-BOT-BC246303  Chloropyron maritimum subsp. palustre J. W. Congdon 1881-5-24 s.n. San Mateo 14 mines south of San Francisco Comment
  SEINET4183191  Chorizanthe robusta K. Brandegee 1905-1 San Mateo Comment
  CAS-BOT-BC36405  Chrysolepis chrysophylla George Oberlander 1949-8-8 411 San Mateo Southern Cahill Ridge Comment
  RSA118979  Chrysolepis chrysophylla Oliver W. Norvell 1931-2-22 1320 San Mateo Kings Mt. Road. 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
  SJSU114  Chrysolepis chrysophylla var. minor C. D. Duncan 1929-9-27 San Mateo Kings Mt Comment
  JEPS85230  Cicendia quadrangularis Roy E. Buck and James A. West 1985-4-29 524 San Mateo 1.9 air km ene Franklin Point (just n of Whitehouse Canyon rd, ca 0.8 km ne of Whitehouse Canyon Rd junction with Calif Hwy 1, Cascade Ranch) Comment
  JROH2585  Cicendia quadrangularis John H. Thomas 1968-4-19 14301 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC277882  Cirsium brevistylum Fred Hemphill 1973-5-14 825 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC277893  Cirsium brevistylum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  CAS-BOT-BC100946  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-6-1 4292 San Mateo Crystal Springs Lake Comment
  SEINET14157452  Cirsium fontinale var. fontinale W. N. Suksdorf San Mateo Comment
  SEINET5506212  Cirsium fontinale var. fontinale Lewis S. Rose San Mateo Comment
  CAS-BOT-BC280521  Cirsium quercetorum Alice Eastwood; John Thomas Howell 1938-6-26 6078 San Mateo Crystal Springs Lake Comment
  CDA1533  Cirsium quercetorum T. C. Fuller 1971-6-1 19881 San Mateo Crystal Springs Reservoir E shore, 0.3 mi. SE of center causeway; Belmont. Comment
  RSA0070862  Cirsium quercetorum E. B. Copeland 1903-6-7 3316 San Mateo Montara Point. Comment
  SEINET3383252 Image available Cirsium quercetorum Lewis S. Rose 1934-5-15 34258 A San Mateo Crystal Springs Lake Comment
  JROH634  Cirsium vulgare John H. Thomas 1964-11-15 10526 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road at edge of Searsville Lake Comment
  CAS-BOT-BC285860  Cirsium vulgare Ira L. Wiggins 1977-7-23 22189 San Mateo Northerly side of San Francisquito Creek stream bed, ca 150 m upstream from Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC285862  Cirsium vulgare Otto T. Solbrig 1958-8-3 2920 San Mateo On Highway 5, Crystal Spring Lake 30 Comment
  SEINET11834687  Cirsium vulgare E. H. Graham 1931-1 6927 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  CAS-BOT-BC162605  Clarkia Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Quarry 3 - San Bruno Mountains Comment
  SJSU15228  Clarkia amoena subsp. whitneyi Toni Corelli 2012-7-12 804 San Mateo Wavecrest, north of Redondo Road, west of Highway 1 in Half Moon Bay 24 Comment
  CAS-BOT-BC172091  Clarkia davyi Peter H. Raven 1950-6-3 22301 San Mateo Roadside cut, Millbrae Ave., Millbrae 91 Comment
  JROH3006  Clarkia purpurea subsp. quadrivulnera John Rawlings, Ann Lambrecht 2011-6-22 0934 San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of main ridge down slope from Escobar Gate. 130 Comment
  CAS-BOT-BC163963  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1903-6-6 s.n. San Mateo Alpine Road, Black Mt., Santa Cruz Range Comment
  CAS-BOT-BC164568  Clarkia purpurea subsp. viminea David D. Keck 1932-8-13 1747 San Mateo Alpine Creek Road above Rolph's ranch, east slope of Santa Cruz Mts. 550 Comment
  RSA176537  Clarkia purpurea subsp. viminea John H. Thomas 1963-6-23 10164 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  CAS-BOT-BC164569  Clarkia purpurea subsp. viminea W. R. Dudley 1905-6-18 s.n. San Mateo Field near Iverson's Place naer Peter's Creek Comment
  CAS-BOT-BC165123  Clarkia rubicunda Peter H. Raven 1957-6-24 10969 San Mateo 0.5 miles south of San Gregorio on old coast highway Comment
  CAS-BOT-BC165145  Clarkia rubicunda Phillip Wheeler 1965-6-7 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC165147  Clarkia rubicunda Louis C. Wheeler 1965-6-21 s.n. San Mateo Sierra Point Comment
  CAS-BOT-BC165165  Clarkia rubicunda Peter H. Raven 1957-6-24 10972 San Mateo North of the light house, Pigeon Point Comment
  CAS-BOT-BC165167  Clarkia rubicunda Margaret A. Barry 1937-6-22 159 San Mateo Exposed slopes on Coal Mine Ridge Comment
  CAS-BOT-BC165179  Clarkia rubicunda L. R. Abrams 1907-8-26 s.n. San Mateo Kings Mt. Comment
  JROH3015  Clarkia rubicunda Rachel Hays 1972-7-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3017  Clarkia rubicunda Raymond R. White 1974-6-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; area H Comment
  UC1279894  Clarkia rubicunda Peter H. Raven 1957-6-20 10955 San Mateo hills above se end Lake San Andreas Comment
  UC930770  Clarkia rubicunda Mrs. Phipps July 1922 San Mateo Tunitas Creek Comment
  CAS-BOT-BC165153  Clarkia rubicunda Walter Knight 1964-9-14 836 San Mateo On ridge - between Peak Mt. and highway 1 Comment
  POM32269  Clarkia rubicunda subsp. blasdalei E. B. Copeland 1903-6-17 3332 San Mateo Montara Point Comment
  RSA108439  Clarkia rubicunda subsp. blasdalei Harlan Lewis, M. Lewis 1951-6-28 962 San Mateo Highway 1, 0.6 mile south of road to Redwood City, at Tunitas Creek. Comment
  CAS-BOT-BC165601  Clarkia unguiculata Daniel Cohen 1953-6-5 108 San Mateo Los Trancos Woods 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
  JROH3337  Claytonia exigua subsp. exigua Toni Corelli 2005-2-16 282 San Mateo Jasper Ridge Biological Preserve, Stanford University; lost serpentine, Trail 5 121 Comment
  CAS-BOT-BC439288  Claytonia exigua subsp. exigua George Oberlander 1950-2-1 445 San Mateo San Francisco Watershed Reserve. Near south boundary Comment
  CAS-BOT-BC439594  Claytonia parviflora subsp. parviflora Fred Hemphill 1973-4-8 656 San Mateo San Carlos. Area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC439595  Claytonia parviflora subsp. parviflora E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Slope below Nike station. Comment
  JEPS121443  Claytonia perfoliata subsp. perfoliata Adam C. Schneider with C. Matt Guilliams 2013-2-2 2 San Mateo Crystal Springs Reservoir, 100 yards west from the intersection of Lexington Ave. and Allegheny Way, Highlands-Baywood Park, CA. Comment
  JROH3350  Claytonia perfoliata subsp. perfoliata John Hunter Thomas 1981-4-5 20288 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  JROH5905  Claytonia perfoliata subsp. perfoliata M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail, west side of Searsville Dam Comment
  SEINET182860 Image available Claytonia perfoliata subsp. perfoliata John Campbell 1925-1-26 San Mateo Burlingame. Comment
  SEINET12046246  Clintonia andrewsiana W. R. Dudley 1893-1 s.n. San Mateo Santa Cruz Penninsula, between Woodside and Summit Springs Comment
  JEPS6369  Collinsia heterophylla Rimo Bacigalupi and G. T. Robbins 1954-6-18 4551 San Mateo 1/4 mi w, along Alpine Rd Skyline Blvd 701 Comment
  RSA104881  Collinsia heterophylla E. F. Sprague 1956-5-28 s.n. San Mateo 2 miles below Skyline Drive on E. La Honda Road. Comment
  CAS-BOT-BC240928  Collinsia multicolor Reed C. Rollins 1941-3-22 2953 San Mateo San Bruno Hills, 2 miles southeast of Daly City Comment
  CAS-BOT-BC240932  Collinsia multicolor Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. In Devil's Arroyo Comment
  JEPS17741  Collinsia multicolor A. Paul Martin 1957-5-23 San Mateo San Bruno Hills, at upper edge of town of Brisbane Brisbane; San Bruno Hills, Brisbane 198 Comment
  SD120833  Collinsia multicolor A. Paul Martin 1957-5-23 San Mateo Northern San mateo County; upper edge of town of Brisbane, southeastern slopes of San Bruno Hills 198 Comment
  CAS-BOT-BC240930  Collinsia multicolor W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Pilar Pt. south slope by grade near summit of Montara Mts. Comment
  JEPS127810  Collinsia sparsiflora Adam C. Schneider with C. Matt Guilliams 2013-4-7 72 San Mateo Comment
  JROH4018  Collinsia sparsiflora var. collina John H. Thomas 1976-4-2 18078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM50569  Collinsia sparsiflora var. collina L. R. Abrams 1902-4-13 2322 San Mateo San Andreas Lake. Comment
  UCR121542  Collomia heterophylla George K. Helmkamp, E. A. Helmkamp 1999-6-28 4978 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  RSA59639  Collomia heterophylla Verne Grant, Alva Grant 1950-6-28 8921 San Mateo west side of Kings Mt. on Tunitas Creek road Comment
  JROH213  Conium maculatum John Hunter Thomas 1980-5-6 19932 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH220  Conium maculatum John Hunter Thomas 1988-6-2 24505 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old bridge Comment
  RSA492534  Conium maculatum Lyman Benson 1937-7-25 8468 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  SEINET4182807 Image available Conium maculatum Robert A. Norris 1974-7-20 2117 San Mateo San Francisco, Near stream in canyon, Glen Park Recreation Center, San Miguel Hills, San Francisco, S.F. Co., Calif. Comment
  SEINET4182808 Image available Conium maculatum Robert A. Norris 1985-10-11 4979 San Mateo San Francisco, near S end of Middle Lake, Chain of Lakes, Gold State Park, San Francisco F. Co., Calif. Fls. white. Comment
  CAS-BOT-BC286211  Conyza canadensis George Oberlander 1949-8-20 360 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  UC26325  Cordylanthus maritimus subsp. palustris J. Burtt Davy 1893-6-17 773 San Mateo Belmont South Coast Ranges Comment
  JEPS4612  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside 60 Comment
  JROH4025  Cordylanthus pilosus subsp. pilosus John H. Thomas 1970-7-5 15660 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4027  Cordylanthus pilosus subsp. pilosus John H. Thomas 1971-8-5 16010 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4031  Cordylanthus pilosus subsp. pilosus Deane Bowers 1980-8-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; just inside the Mapache entrance once you reach the grassland Comment
  POM273538  Cordylanthus pilosus subsp. pilosus Lyman Benson 1934-7-28 6106 San Mateo Stanford University. Santa Cruz mtn range, S.F. Bay watershed. 152 Comment
  JROH4034  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
  RSA18367  Cornus occidentalis C. B. Wolf 1929-5-20 3721 San Mateo No. end of Searsville Lake. Comment
  CAS-BOT-BC210358  Cornus sericea Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Base of Quarry 2 Comment
  SEINET3407584 Image available Cornus sericea Lewis S. Rose 1939-5-5 39094 San Mateo San Mateo Canyon. 46 Comment
  SEINET12137024  Cornus sericea subsp. occidentalis J. I. McMurphy 1906-1 22 San Mateo Los Francos Creek, Santa Cruz Mts Comment
  CAS-BOT-BC190041  Cortaderia jubata Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon. Comment
  CAS-BOT-BC190043  Cortaderia jubata Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountains. Along Guadalupe Canyon Parkway east of Northeast ridge. 60 Comment
  POM270392  Corylus cornuta var. californica Lyman Benson 1931-2-28 2613 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  CAS-BOT-BC453505  Cotoneaster lacteus Philip Wheeler; Elizabeth McClintock 1965-6-16 s.n. San Mateo Colma Canyon - creek area; San Bruno Mountains Comment
  CAS-BOT-BC344964  Cotoneaster pannosus Peter Rubtzoff 1977-4-16 8951 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC287305  Cotula australis Walter & Irja Knight 1965-2-28 874 San Mateo San Bruno Mt. Ridge 0.25 mile E parking lot Comment
  CAS-BOT-BC287307  Cotula australis Walter & Irja Knight 1965-3-21 957 San Mateo San Bruno Mt. North Power Line Ridge along summit road Comment
  CHSC57065  Cotula coronopifolia Steven Triano 1988-5-24 202 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  CAS-BOT-BC291462  Cotula coronopifolia Javier Penalosa 1963-2-23 2658 San Mateo South of Crocker Ave., San Bruno Mountain 213 Comment
  UC19144  Crassula aquatica J. Burtt Davy 1893-6-22 San Mateo n.w. end Lake Pilarcitos Comment
  CAS-BOT-BC427606  Crassula aquatica George Oberlander 1949-8-20 374 San Mateo San Francisco Watershed Reserve. About San Andreas Lake Comment
  RSA291922  Crassula aquatica Robert A. Norris 1981-11-7 4276 San Mateo Pond near Ano Nuevo Point. Comment
  UCD101809  Crassula aquatica Malcolm A. Nobs 1949-8-26 1580 San Mateo About 1 mile south of Half Moon Bay. Comment
  JEPS121548  Crassula connata Adam C. Schneider with C. Matt Guilliams 2013-3-9 26 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC427836  Crassula connata Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Near Guadalupe Road in Crocker Hills. Comment
  JROH1888  Crassula connata John H. Thomas 1977-4-2 18509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS125947  Crataegus monogyna D. W. Taylor 2000-8-1 17538 San Mateo Montara Mountain: Scarper Peak, western slope of the pek near the summit. Comment
  JROH3655  Crataegus monogyna John Hunter Thomas 1984-4-24 23299 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  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
  JROH1378  Cryptantha microstachys John Hunter Thomas 1978-5-16 19213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5740  Cryptantha microstachys John Rawlings 2014-5-10 16601660 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Tr. 9 alternate 127 Comment
  RSA44330  Cupressus abramsiana Harry A. Dutton 1949-9-12 s.n. San Mateo Common corners of Sec. 11 & 12 and 13 &14, Range 4 West, North bank of North Fork of Butano Creek Comment
  CAS-BOT-BC80789  Cupressus macrocarpa George Oberlander 1950-2-1 422 San Mateo Cahill Ridge - Plants of the San Francisco Watershed Reserve Comment
  JROH5621  Cuscuta occidentalis Ann Lambrecht, Toni Corelli, John Rawlings 2010-8-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Old dock below Searsville Lab 104 Comment
  SD38407  Cuscuta pacifica var. pacifica Edith A. Purer 1933-8-13 5408 San Mateo Small bottom near Baden Station Comment
  RSA130967  Cuscuta salina S. D. Halsey 1908-9-26 s.n. San Mateo near Cooley's Landing Comment
  CAS-BOT-BC257693  Cyclospermum leptophyllum Peter Rubtzoff 1988-6-25 9927 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  CAS-BOT-BC287328  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  CAS-BOT-BC287330  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  CAS-BOT-BC287332  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  RSA120949  Cynara scolymus J. T. Howell 1956-11-14 31961 San Mateo Bayshore Highway just south of Main Street, Redwood City. Comment
  JROH1393  Cynoglossum grande John Hunter Thomas 1981-4-5 20277 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  CAS-BOT-BC114452  Cyperus eragrostis John Thomas Howell 1926-10-9 2216 San Mateo Near Lake San Andreas Comment
  JROH4393  Cyperus erythrorhizos John H. Thomas 1978-9-24 19339 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Searsville Lake. Comment
  CAS-BOT-BC133770  Cypripedium fasciculatum Miss. Bolton 1911-5-6 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC133772  Cypripedium fasciculatum Mrs. C. S. Jordan 1915-4-1 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC198193  Cytisus scoparius Daniel Cohen 1953-5-5 69 San Mateo Skyline Drive above San Mateo Comment
  CAS-BOT-BC192228  Danthonia californica Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC192230  Danthonia californica A. G. Vestal 1924-5-20 s.n. San Mateo Sandhill Road (west of Menlo Park) Comment
  CAS-BOT-BC192232  Danthonia californica David D. Keck 1932-5-6 1479 San Mateo Just west of Millbrae Highlands 50 Comment
  RSA790274  Danthonia californica Peter Rubtzoff 1976-5-22 8547 San Mateo San Bruno Mtn: ''Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  RSA580827  Danthonia californica var. americana D. D. Keck 1932-5-6 1479 San Mateo Open hillside just west of Millbrae Highlands. 50 Comment
  CDA31644  Danthonia californica var. californica T. C. Fuller 1975-5-15 20075 San Mateo Hillborough, north exit of rest stop, east side of Hwy 280. 0 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
  CHSC1953  Daucus pusillus A. Goekler 1929-5-10 San Mateo Moss Beach. Comment
  POM133419  Daucus pusillus E. B. Copeland 1903-6-8 3337 San Mateo Montara Point. Comment
Read comments
Jan 23 2011
  OBI16292  Deinandra corymbosa Lewis S. Rose 1965-9-4 65100 San Mateo Skyline blvd and Half Moon Bay Rd; Cahill Ridge 244 Comment
  OBI48631  Deinandra corymbosa Lewis S. Rose 1937-8-29 37644 San Mateo Moss Beach 15 Comment
  UC89137  Deinandra corymbosa K. Brandegee 1889-5-1 San Mateo Milbrae Comment
  UC2046132  Deinandra corymbosa Neal Kramer with Tom Mahony 2015-6-12 2150 San Mateo Redondo Bluffs, Half Moon Bay Comment
  CAS-BOT-BC299189  Deinandra corymbosa subsp. corymbosa A. D. E. Elmer 1903-7-1 4963 San Mateo Crystal Springs Lake Comment
  JROH682  Delairea odorata Paul Heiple 2008-12-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; just inside Sand Hill Rd. fence well south of main gate (just south of abandoned telephone pole) Comment
  JEPS8375  Delphinium Rimo Bacigalupi with L. Constance and C. R. Bell 1951-3-25 3205 San Mateo near San Francisco; Colma Canyon 137 Comment
  UC311529  Delphinium californicum A. D. E. Elmer July 1903 4548 San Mateo Pilarcitos Stone Dam Comment
  JROH3429  Delphinium californicum subsp. californicum Richard L. Garber 1971-5-18 28 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3433  Delphinium californicum subsp. californicum John H. Thomas 1973-6-10 16811 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3441  Delphinium californicum subsp. californicum John Hunter Thomas 1989-5-11 24730 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road near and below dam Comment
  CAS-BOT-BC9230  Delphinium decorum R. C. Bacigalupi 1922-3-1 s.n. San Mateo Near coast, vicinity of Pigeon Point Comment
  CAS-BOT-BC9249  Delphinium decorum Elizabeth McClintock; Phillip C. Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain, east side of mountain, above Harold Ave., Brisbane. Above Philip Wheeler's house Comment
  CAS-BOT-BC10282  Delphinium hesperium Herbert L. Mason 1931-7-14 s.n. San Mateo Pescadero Creek, La Honda road Comment
  CAS-BOT-BC10289  Delphinium hesperium J. H. Thomas 1949-5-29 564 San Mateo Alpine Road, about 1 mile beyond intersection with Mt. Home Road, going west Comment
  JROH3444  Delphinium hesperium subsp. hesperium John H. Thomas 1976-5-26 18155 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
  UC136329  Delphinium nudicaule C. F. Baker 1902-5-10 795 San Mateo along banks King's Mt. Comment
  CAS-BOT-BC116530  Delphinium patens subsp. patens W. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  JROH3452  Delphinium patens subsp. patens John H. Thomas 1972-4-1 16050 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC116528  Delphinium patens subsp. patens W. Dudley 1900-3-16 s.n. San Mateo Above Tripp's Store, Woodside Comment
  CAS-BOT-BC116532  Delphinium variegatum P. F. Covel 1936-4-24 269 San Mateo Foot of Saratoga Grade Comment
  CAS-BOT-BC7892  Delphinium variegatum H. Paul Arnaud 1941-5-3 s.n. San Mateo Jefferson Avenue, Redwood City Comment
  CAS-BOT-BC7936  Delphinium variegatum Cynthia Steele 1948-4-18 26 San Mateo Redwood City Comment
  CAS-BOT-BC7896  Delphinium variegatum subsp. variegatum Ned Cahill 1974-4-29 200 San Mateo near jct. of Canada and Edgewood Roads, about 3 mi. westward from Redwood City Comment
  JROH5061  Deschampsia elongata John Hunter Thomas 1977-6-16 18773 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5066  Deschampsia elongata John Hunter Thomas 1982-7-3 21061 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5075  Deschampsia elongata W. Lennihan 1990-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Mapache Trail (12) before swale, just before going uphill onto Trail 10, right and left of path. Comment
  RSA17939  Deschampsia holciformis C. B. Wolf, Le Roy Abrams 1927-6-16 s.n. San Mateo On the west side of Spring Valley Lakes. Comment
  CAS-BOT-BC903  Dicentra chrysantha Rimo Bacigalupi 1926-4-30 1355 San Mateo Near summit of Mt. Diablo Comment
  CAS-BOT-BC389662  Dichelostemma capitatum Wm. McCauley 1963-3-30 s.n. San Mateo Coyote Point Comment
  POM276997  Dichelostemma capitatum subsp. capitatum Lyman Benson 1931-3-15 2634 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  SD39077  Dichelostemma capitatum subsp. capitatum Marie Cummings 1933-4-11 8 San Mateo Spring Valley Lake. Comment
  CAS-BOT-BC502166  Dichelostemma congestum Fred Hemphill 1973-4-22 730 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  JROH4665  Dichelostemma congestum John Hunter Thomas 1982-4-23 20836 San Mateo Jasper Ridge Biological Preserve, Stanford University. Picnic area Comment
  UC634883  Dichondra donelliana H. L. Mason 1928-2-22 4156 San Mateo San Bruno Mountains Comment
  JROH5077  Digitaria sanguinalis John H. Thomas 1974-10-29 17648 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accomodate water from Corte Madera Cr. Comment
  JROH5083  Digitaria sanguinalis Toni Corelli 2006-9-20 328 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Trail 12 in the dry stream bed of the Corte Madera Creek 109 Comment
  SEINET8375013  Diplacus aridus J. I. McMurphy 1906-5-20 25 San Mateo Kings Mt. Santa Cruz Mts. Comment
  CAS-BOT-BC150448  Diplacus aurantiacus L. R. Abrams 1915-11-1 5480 San Mateo Searsville Ridge Comment
  CAS-BOT-BC150468  Diplacus aurantiacus Elizabeth McClintock; Paul Reeberg 1988-5-20 s.n. San Mateo Carter Street Comment
  CAS-BOT-BC151992  Diplacus douglasii H. A. Dutton 1900-2-4 s.n. San Mateo Woodside serpentine. Comment
  CAS-BOT-BC151990  Diplacus douglasii L. R. Abrams 1915-3-23 5566 San Mateo Between Woodside and Crystal Springs Lake by crossroads - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC121859  Dirca occidentalis Lewis S. Rose 1933-6-9 33222 San Mateo San Andreas Lake Comment
  JROH4210  Dirca occidentalis John Hunter Thomas 1981-2-14 20227 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM274503  Dirca occidentalis Lyman D. Benson 1929-3-2 992 San Mateo East of Lake Searsville Comment
  SBBG32296  Dirca occidentalis L. S. Rose 1964-3-9 64004 San Mateo N end of Crystal Springs Lake 121 Comment
  UC19691  Dirca occidentalis C. T. Blake 1893-5-27 San Mateo Pilarcitos Reservoir Comment
  UC872739  Dirca occidentalis Lewis S. Rose 1939-4-12 39060 San Mateo Crystal Springs Lake 152 Comment
  POM169497  Disporum hookeri var. hookeri C. F. Baker 1903-04 5052 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC195721  Distichlis spicata Ray Pestrong 1963-11-8 s.n. San Mateo South San Francisco Bay, in the marsh near East Palo Alto, Dumbarton Bridge Comment
  SACT000992  Distichlis spicata var. stolonifera Malcolm Nobs, S. Smith 1949-8-26 San Mateo Collected in the marshes at mouth of creek. Comment
  JROH3377  Dodecatheon clevelandii subsp. patulum Duncan M. Porter 1961-2-5 738 San Mateo Jasper Ridge Biological Preserve, Stanford University. In middle of corral at lower end of large meadow on crest of ridge Comment
  RSA112455  Dodecatheon hendersonii subsp. cruciatum I. L. Wiggins 1929-3-24 3383 San Mateo On road to Searville Lake, back of Stanford University. Comment
  JROH1507  Draba verna J. H. Thomas 1980-4-23 19896 San Mateo Jasper Ridge Biological Preserve, Stanford University; in road below dam Comment
  JROH1511  Draba verna John Hunter Thomas 1984-4-10 23285 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1514  Draba verna John Hunter Thomas 1988-4-6 24369 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC435208  Drosanthemum floribundum Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  UC1964685  Drymocallis glandulosa Roger Raiche 1983-8-18 30634 San Mateo Montara Mt. Comment
  CAS-BOT-BC159543  Drymocallis glandulosa var. glandulosa Javier Penalosa 1963-2-23 2634 San Mateo San Bruno Mtn., ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC159541  Drymocallis glandulosa var. glandulosa J. H. Thomas 1949-5-28 563 San Mateo Alpine Road, about 1 mile from intersection with Mt. Home Road, going westward. Comment
  JROH37  Dryopteris arguta John Hunter Thomas 1980-11-12 20162 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CDA42717  Dryopteris arguta L. Masini 1965-9-22 s.n. San Mateo La Honda Creek, north of La Honda. 0 Comment
  POM193661  Dryopteris arguta L. R. Abrams 1901-12-29 2251 San Mateo Santa Cruz Mountains Comment
  JEPS49939  Dudleya caespitosa W. L. Jepson 1910-8-18 4164 San Mateo Gazos Creek Pescadero 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-BC109694  Dudleya farinosa Ira L. Wiggins 1929-7-14 3805 San Mateo Bluffs above Pescadero sand Beach. Comment
  CAS-BOT-BC428366  Dudleya farinosa Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  SJSU16065  Dysphania ambrosioides Toni Corelli 2009-9-9 438 San Mateo Half Moon Bay State Beach, in low dunes, Half Moon Bay Comment
  CAS-BOT-BC208921  Echinochloa crus-galli Ira L. Wiggins 1980-8-29 22266 San Mateo Bed of San Francisquito Creek, ca 240 m upstream from Pope Street Bridge, Manlo [Menlo] Park Comment
  JROH5722  Echinochloa crus-galli John Rawlings 2015-9-22 1641 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  JROH4307  Echinodorus berteroi John Hunter Thomas 1981-7-12 20701 San Mateo Jasper Ridge Biological Preserve, Stanford University; on sandy beach Comment
  CDA5626  Echium pininana T. C. Fuller 1967-6-13 15943 San Mateo North side of road to Crystal Springs, 1.2 miles east of Highway 1 at Half Moon Bay. 0 Comment
  CAS-BOT-BC113592  Eleocharis acicularis M. E. Lang 1923-5-1 s.n. San Mateo Mud Lakes Comment
  CAS-BOT-BC112953  Eleocharis macrostachya W. R. Dudley 1908-6-19 s.n. San Mateo By pond S of Road from Tanforan to Jersey Farm Dairy. Comment
  CAS-BOT-BC113151  Eleocharis palustris Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo PG & E Marsh 4 Comment
  POM144805  Eleocharis palustris E. B. Copeland 1903-03 3340 San Mateo Searsville. Comment
  POM352566  Elymus californicus P. H. Raven 1967-6-25 21418 San Mateo Pescadero Road 2.8 miles SW of Alpine Road. Comment
  SJSU11265  Elymus glaucus S. H. Casey 1980-6-13 1157 San Mateo Los Trancos Woods 609 Comment
  JROH5104  Elymus glaucus subsp. glaucus John H. Thomas 1971-5-30 15979 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5106  Elymus glaucus subsp. glaucus John H. Thomas 1975-5-26 17919 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC235209  Elymus multisetus David D. Keck 1932-5-6 1469 San Mateo Belmont Comment
  LA14855  Elymus multisetus David D. Keck; 1932-5-6 1469 San Mateo Belmont Comment
  RSA159423  Elymus multisetus John H. Thomas 1961-5-14 9384 B San Mateo Serpentine road bank and outcropping just north of dam on San Mateo Creek. 122 Comment
  SJSU15954  Elymus multisetus John Rawlings, Ken Hickman 2016-5-26 1831 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  RSA72120  Epilobium brachycarpum F. W. Peirson 1925-9-13 6428 San Mateo Rockaway beach Comment
  SEINET12641003  Epilobium canum E. Crawford 1982-1 s.n. San Mateo Beside highway 1, up cliff from Pomponio Beach. 37 Comment
  RSA40475  Epilobium canum subsp. canum C. F. Leithold 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula: Devil s Canyon, branch of Pescadero and Mill Cr. Black Mt. Comment
  SJSU802  Epilobium canum subsp. canum M. B. Mirassou 1943-5-10 191 San Mateo near Pigeon Point Comment
  POM32681  Epilobium ciliatum subsp. watsonii Copeland 1903-6-5 3328 San Mateo Montara Point. Comment
  UC1122561  Epilobium ciliatum subsp. watsonii H. S. Yates 1935-5-8 5220 San Mateo 2 mi sw Pescadero; Santa Cruz Quadrangle Comment
  UCD105792  Epilobium ciliatum subsp. watsonii Malcolm A. Nobs; S. Galen Smith 1949-8-25 1548 San Mateo Sharp Park. Comment
  JROH3068  Epilobium densiflorum John Hunter Thomas 1981-7-12 20703 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  CAS-BOT-BC413802  Epilobium foliosum Robert I. Gilbreath 1973-7-1 0029 San Mateo Burlingame 182 Comment
  JROH3070  Epilobium minutum John H. Thomas 1963-5-15 10092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS112674  Epipactis helleborine Dean W. Taylor 2000-7-20 17431 San Mateo Montara Mountain; Scarper Peak, western slope of the peak near the summit; bordering the springbox serving the FAA facility on the summit 502 Comment
  CAS-BOT-BC166768  Equisetum arvense Peter Rubtzoff 1978-4-2 9153 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA30891  Equisetum hyemale var. affine Roxana S. Ferris 1921-3-20 2113 San Mateo Pescadero near mouth of canon. The Santa Cruz Mtn Peninsula. Comment
  CAS-BOT-BC57607  Equisetum telmateia George Oberlander 1950-4-2 568 San Mateo south boundary Comment
  UC311544  Equisetum telmateia subsp. braunii A. D. E. Elmer March, 1903 4501 San Mateo Portola Comment
  POM9508  Equisetum telmateia var. braunii C. F. Baker 1902-3-18 324 San Mateo West side King s Mountain. Comment
  CAS-BOT-BC299891  Erechtites glomeratus John H. Thomas 1961-5-7 9275 San Mateo San Bruno Mountain 396 Comment
  CAS-BOT-BC299893  Erechtites glomeratus J. H. Thomas 1955-12-6 5514 San Mateo Pilarcitos Lake Dam Comment
  CDA4546  Erechtites glomeratus I. J. Campbell 1958-4-18 322 -58 San Mateo 0 Comment
  JROH3149  Eriastrum abramsii Carol Zabel 1989-4-19 11 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road E, opposite madrone tree with fixed ropes for madrone study Comment
  UCSC007741  Ericameria ericoides Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH646  Erigeron bonariensis John H. Thomas 1976-10-16 18411 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH677  Erigeron canadensis Toni Corelli 2006-9-20 327 San Mateo Jasper Ridge Biological Preserve, Stanford University. Above Corte Madera Creek, west of Trail 12 106 Comment
  CAS-BOT-BC300614  Erigeron foliosus var. franciscensis Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. In old quarry in Colma Canyon Comment
  CHSC320  Erigeron glaucus B. Richardson 1929-5-11 San Mateo Moss Beach. 9 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
  RSA10282  Erigeron glaucus H. A. Barker 1927-5-14 647 San Mateo North of Half Moon Bay. Comment
  CAS-BOT-BC216126  Eriodictyon californicum A. D. E. Elmer 1903-4-1 4801 San Mateo Lake San Andreas Comment
  CAS-BOT-BC216134  Eriodictyon californicum Alice Eastwood 1912-6-10 836 San Mateo Crystal Springs Comment
  CDA34113  Eriodictyon californicum D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .153 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  JROH2727  Eriodictyon californicum Raymond R. White 1974-6-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; area H Comment
  SEINET12271679  Eriodictyon californicum J. H. Thomas 1959-1 7667 San Mateo Jasper Ridge, ca 5 mi SW of Palo Alto 152 Comment
  CAS-BOT-BC253242  Eriogonum fasciculatum var. foliolosum Claire Etienne 1973-5-1 s.n. San Mateo Ca. 1 mi. north of Jtn. with Hwy. 84 (to Woodside) on Hwy. 280 Comment
  CAS-BOT-BC250544  Eriogonum gracile John H. Thomas 1969-10-19 15478 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC250545  Eriogonum gracile Paul H. Arnaud, Jr. 1959-8-2 s.n. San Mateo Hills above Redwood City Comment
  CAS-BOT-BC251976  Eriogonum latifolium Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC251984  Eriogonum latifolium John H. Thomas 1963-5-20 10126 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC251985  Eriogonum latifolium Louis F. Pitelka 1973-6-16 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco. On bluffs in open areas Comment
  RSA3885  Eriogonum latifolium I. L. Wiggins 1929-7-4 3797 San Mateo Pescadero Beach Comment
  UC311072  Eriogonum latifolium A. D. E. Elmer July, 1903 4557 San Mateo Half Moon Bay Comment
  SEINET10479506  Eriogonum latifolium Mary Susan Taylor 1978-8-30 Taylor 1870 San Mateo Comment
  SEINET11938062  Eriogonum latifolium M. T. Doutt 1931-1 602 San Mateo near Portola, along ocean Comment
  SEINET3814248 Image available Eriogonum latifolium Lewis S. Rose 1933-7-21 33307 San Mateo Montara. Comment
  POM193637A  Eriogonum luteolum L. R. Abrams 1902-9-21 2988 San Mateo Crystal Lake Comment
  UC912827  Eriogonum luteolum var. luteolum Lewis S. Rose 1937-9-21 37661 San Mateo w Redwood City (Emerald Lake); Emerald Lake 182 Comment
  JROH3238  Eriogonum luteolum var. luteolum Carol Zabel 1989-8-27 33 San Mateo Jasper Ridge Biological Preserve, Stanford University. Herb's serpentine loop, top of Trail 5. Comment
  RSA95580  Eriogonum nudum var. auriculatum L. S. Rose 1953-6-29 53047 San Mateo 0.5 mile E of Crystal Springs Lake on road to Belmont. Comment
  CDA22626  Eriogonum nudum var. nudum T. C. Fuller 1967-6-13 15949 San Mateo Road to San Mateo, 0.7 mile east of Skyline Blvd., east above Crystal Springs Lake. 0 Comment
  HSC23886  Eriophyllum confertiflorum Mary Katherine Wicksten 1971-7-2 150 San Mateo Huddart Park, near Mimwok area Comment
  RSA7603  Eriophyllum confertiflorum L. S. Rose 1933-5-17 33176 San Mateo Redwood City Comment
  JROH698  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1969-5-28 15076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS19486  Eriophyllum lanatum var. arachnoideum Peter H. Raven 1957-6-24 10963 San Mateo just s of Linda Mar Comment
  RSA18518  Eriophyllum lanatum var. arachnoideum C. B. Wolf 1927-7-14 601 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC301750  Eriophyllum latilobum S. Carlquist 1952-4-26 305 San Mateo On N. side of road to Half Moon Bay, 1 mi. e. of San Mateo Comment
  CAS-BOT-BC301752  Eriophyllum latilobum S. Carlquist 1952-4-26 305 San Mateo On N. side of road to Half Moon Bay, 1 mi. e. of San Mateo Comment
  JEPS28876  Eriophyllum latilobum V. F. Hesse 1962-6-26 3152 San Mateo 9 mi n of Saratoga Summit Highway 5; ; <State route 5 became state route 35> 609 Comment
Read comments
Sep 8 2011
  UC1080175  Eriophyllum latilobum Sherwin Carlquist 1952-4-26 305 San Mateo 1 mi w on San Mateo-Half Moon Bay Road San Mateo Comment
  CAS-BOT-BC301980  Eriophyllum staechadifolium Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  UCR240615  Eriophyllum staechadifolium T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3531 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  CAS-BOT-BC301965  Eriophyllum staechadifolium Carl B. Wolf 1930-11-5 1808 San Mateo 2 miles south of San Gregorio 60 Comment
  CAS-BOT-BC301967  Eriophyllum staechadifolium W. R. Dudley 1895-2-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Pomponio Creek Comment
  CAS-BOT-BC301978  Eriophyllum staechadifolium Elizabeth McClintock 1967-6-24 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  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
  RSA116763  Eriophyllum staechadifolium L. R. Abrams 1907-08 s.n. San Mateo Between Pescadero and Half Moon Bay Comment
  JEPS121483  Erodium botrys Adam C. Schneider 2013-5-17 140 San Mateo Crystal Springs Reservoir Comment
  JROH2598  Erodium botrys John H. Thomas 1971-4-25 15789 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC566783  Eryngium armatum Herbert L. Mason 1927-7-29 3982 San Mateo Pigeon Point Comment
  UC619415  Eryngium armatum Wilhelm N. Suksdorf 1913-6-23 278 San Mateo Crystal Springs Lake Comment
  JROH237  Eryngium jepsonii H. J. Dengler 1968-6-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in low spot by trail in East Serpentine Comment
  CAS-BOT-BC54820  Erysimum franciscanum Javier Penalosa 1963-3-30 2735 San Mateo San Bruno Mountains. North of Randolph Drive at Hillside Boulevard. In South San Francisco. 289 Comment
  CAS-BOT-BC54821  Erysimum franciscanum Javier Penalosa 1963-3-9 2669 San Mateo San Bruno Mountains. Slopes southeast of 1314 foot summit. 381 Comment
  CAS-BOT-BC54834  Erysimum franciscanum G. B. Rossbach 1955-3-12 568 San Mateo Just inland and southeast of Devil's Slide, west edge of Montara Mountains. 121 Comment
  CAS-BOT-BC54861  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-6-4 914 San Mateo Above southeast shore of Crystal Springs Lake, southwest base Pulgas Ridge. 91 Comment
  CAS-BOT-BC54872  Erysimum franciscanum John H. Thomas 1961-5-7 9316 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC54875  Erysimum franciscanum C. F. Baker 1903-4-6 1885 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC54879  Erysimum franciscanum Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountains. Lower part of Colma Canyon. Comment
  RSA101912  Erysimum franciscanum G. B. Rossbach 1939-5-12 900 San Mateo 2.5 miles N of Montara near Devil s Slide Comment
  RSA102128  Erysimum franciscanum G. B. Rossbach 1955-3-26 573 San Mateo 1 mile North of Sharp Park (Salada) Comment
  RSA51239  Erysimum franciscanum P. H. Raven 1950-4-16 1781 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  UC1034733  Erysimum franciscanum G. B. Rossbach 1940-4-23 925 San Mateo s San Pedro Valley (nw of Peak Mt., steep sea-facing ledges about 1 mi inland); Montara Mts. 121 Comment
  UC1034944  Erysimum franciscanum G. B. and R. P. Rossbach 1938-3-15 800 San Mateo rocky knolls and roadbank on e side of lake Crystal Springs Lake 106 Comment
  CAS-BOT-BC403560  Eschscholzia californica Walter Knight; Irja Knight 1964-4-25 632 San Mateo San Bruno Mountain. Power Line Ridge Comment
  CHSC1197  Eschscholzia californica L. Lancelot 1930-5-1 San Mateo Moss Beach. Comment
  CAS-BOT-BC403542  Eschscholzia californica H. A. Dutton 1900-2-27 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC202740  Euonymus occidentalis George Oberlander 1949-4-20 617 San Mateo San Francisco Watershed Reserve. Pilarcitos Comment
  CAS-BOT-BC202742  Euonymus occidentalis Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  RSA100720  Euonymus occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  RSA116735  Euonymus occidentalis W. R. Dudley 1910-5-26 s.n. San Mateo Los Trancos Creek, above Judge Allen's; Santa Cruz Mountain Peninsula. Comment
  UC306743  Euonymus occidentalis var. occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  POM282553  Euphorbia crenulata Lyman Benson 1930-5-3 2089 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  CDA4815  Euphorbia helioscopia I. J. Campbell 1956-6-3 San Mateo Pescardo, Pedro Valley. 0 Comment
  RSA176579  Euphorbia lathyris John H. Thomas 1964-6-28 10435 San Mateo Along Half Moon Bay - Crystal Springs Lake road, about 2.2 mi, e of Half Moon Bay. Comment
  CDA20071  Euphorbia lathyris J. Beall 2002-10-7 PDR 065872 San Mateo San Francisco Bay Area; 1/3 mi E of Butano Cutoff on Pescadero Creek Rd 0 Comment
  JROH5788  Euphorbia oblongata John Rawlings 2016-5-10 1780 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Cr. near Dennis Martin site. 73 Comment
  JROH1968  Euphorbia oblongata Ann Lambrecht 2012-12-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; beside footbridge on Trail 12 Comment
  CAS-BOT-BC310614  Eurybia radulina C. F. Leitholt 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devils Canon [Canyon], Black Mountain Comment
  CAS-BOT-BC310615  Eurybia radulina W. R. Dudley 1894-12-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Above Preston's - La Honda Road Comment
  SJSU14659  Fagus sylvatica P. J. Canziani 1979-10-14 San Mateo Washington Park, Burlingame Comment
  CAS-BOT-BC183620  Festuca arundinacea Peter Rubtzoff 1976-6-13 8632 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  CAS-BOT-BC278284  Festuca californica Dean Wm. Taylor 1988-4-8 9504 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 237 Comment
  CAS-BOT-BC278287  Festuca californica Roxana S. Ferris 1920-4-23 1952 San Mateo Santa Cruz Mountain Peninsula. Bridge on Alpine Road along Corte Madera Cr. 365 Comment
  JEPS101932  Festuca californica Dean W. Taylor 1988-4-8 9504 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
  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
  UCD65896  Festuca californica subsp. californica Rimo Bacigalupi; S. G. Smith, L. T. Dempster, and G. T. Robbins 1956-5-15 5645 San Mateo On eastern flank of first ridge west of San Andreas Lake, on road to Pilarcitos Lake. 198 Comment
  CAS-BOT-BC278478  Festuca idahoensis Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC278480  Festuca idahoensis Elizabeth McClintock; Paul Reeberg 1989-5-16 s.n. San Mateo San Bruno Mountain. On ridge east of East Powerline, on south side of Southeast Ridge 274 Comment
  CAS-BOT-BC539285  Festuca idahoensis John Rawlings; Ken Hickman 2015-6-8 1577 San Mateo Caltrans right-of-way above Hwy 92 E of Hwy 280, downslope from San Francisco Watershed fenceline 118 Comment
  SJSU11266  Festuca idahoensis S. H. Casey 1980-6-13 1158 San Mateo Los Trancos Woods 609 Comment
  JROH5491  Festuca microstachys Stephen N. Turitzin 1976-3-7 5 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5494  Festuca myuros Herbert Dengler 1957-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5501  Festuca myuros Stephen N. Turitzin 1975-5-7 3 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278864  Festuca occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek near Iverson's Place Comment
  JROH5506  Festuca octoflora John H. Thomas 1966-4-20 11561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5292  Festuca perennis W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9. Comment
  SJSU16015  Festuca perennis John Rawlings, Ken Hickman 2016-5-26 1810 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  UCD66325  Festuca rubra P. B. Kennedy 1914-7-5 San Mateo Moss Beach, Pacific Grove. Comment
  CDA33775  Fragaria chiloensis D. G. Kelch 2011-3-13 11 .048 San Mateo Pacifica. Along sea bluffs Comment
  CAS-BOT-BC437038  Fragaria chiloensis Elizabeth McClintock 1965-3-28 s.n. San Mateo April Brook, San Bruno Mountain Comment
  CAS-BOT-BC437039  Fragaria chiloensis Walter Knight; Irja Knight 1964-4-25 688 San Mateo West of Radio Road, San Bruno Mountain Comment
  JROH3668  Fragaria vesca John Hunter Thomas 1981-4-23 20486 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23908  Frangula californica Mary Katherine Wicksten 1971-6-17 78 San Mateo Huddart Park, along Chickadee Trail Comment
  CAS-BOT-BC52681  Frangula californica subsp. californica Elizabeth McClintock 1963-6-9 s.n. San Mateo unspecified Comment
  JROH3535  Frangula californica subsp. californica John H. Thomas 1961-6-14 9540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3577  Frangula californica subsp. californica John Hunter Thomas 1981-2-14 20215 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET6671082 Image available Frankenia grandifolia Lewis S. Rose 1938-1 38230 San Mateo Brisbane 2 Comment
  SEINET3558049 Image available Frankenia grandifolia Lewis S. Rose 1933-7-20 33304 San Mateo Granada Sea Beach. Comment
  POM130919  Fraxinus latifolia A. D. E. Elmer 1903-07 4615 San Mateo San Mateo Creek Comment
  UC204065  Fraxinus latifolia A. D. E. Elmer Jul 1903 4615 San Mateo San Mateo Creek Comment
Read comments
Sep 4 2011
  CAS-BOT-BC130122  Fritillaria affinis L. R. A. 1902-4-13 2339 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC130138  Fritillaria affinis Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  POM278014  Fritillaria affinis Lyman Benson 1935-5-5 6542 San Mateo Lake Searsville 152 Comment
  CAS-BOT-BC130120  Fritillaria affinis W. R. Dudley 1894-4-21 s.n. San Mateo On upper road near Crystal Springs Lake Comment
  POM278026  Fritillaria affinis Lyman Benson 1930-5-1 2053 San Mateo Stanford University. San Lorenzo Mt. Range. 122 Comment
  SEINET12054471  Fritillaria affinis Cummings, McCallum, G. A. 1933-1 s.n. San Mateo near La Honda Comment
  CAS-BOT-BC130210  Fritillaria agrestis Roxana S. Ferris 1921-3-21 2120 San Mateo New Years Point - [Ann] Ano Nuevo Comment
  CAS-BOT-BC130384  Fritillaria liliacea Marion Gallagher 1978-3-3 s.n. San Mateo At Farm Hill School Site, above Redwood City and opposite [Canada] Canada College, just off 280 at Farm Hill off ramp Comment
  CAS-BOT-BC389733  Galium J. Lovelle 1973-8-5 37 San Mateo Mt. Ellen Trail Comment
  CDA28822  Galium aparine D. G. Kelch 2009-6-9 9 .401 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  POM284029  Galium californicum subsp. californicum Delzie Demaree 1933-6-23 10379 San Mateo White House Creek. Comment
  JROH3786  Galium murale John H. Thomas 1958-5-10 7138 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3790  Galium murale John H. Thomas 1967-5-12 12882 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM222811  Galium nuttallii S. S. Berry, K. L. Dole 1909-4-3 s.n. San Mateo Near foot of Bear Creek Grade. 152 Comment
  POM58032  Gamochaeta ustulata E. B. Copeland 1903-6-18 3312 San Mateo Montara Point. Comment
  UCD84710  Gamochaeta ustulata Robert E. Preston 2009-6-16 2688 San Mateo Santa Cruz Mtns, ca. 0.5 mi NW of Waterman Gap. 347 Comment
  CAS-BOT-BC194568  Garrya elliptica Helen M. Edwards 1917-2-1 s.n. San Mateo Los Trancos Woods Comment
  CAS-BOT-BC194569  Garrya elliptica Lewis S. Rose 1962-2-5 62001 San Mateo San Andreas Lake 152 Comment
  JROH2541  Garrya elliptica E. A. McGregor 1907-2-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University 243 Comment
  SBBG34145  Garrya elliptica R. E. Dengler 1960-4-10 9 San Mateo Jasper Ridge, Stanford Biological Reserve 160 Comment
  SEINET12137147  Garrya elliptica Cummings 1933-1 s.n. San Mateo top of Jasper Ridge Comment
  CAS-BOT-BC278662  Gastridium phleoides Fred Hemphill 1973-5-14 812 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH5182  Gastridium phleoides John H. Thomas 1963-6-23 10172 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grasslands near Westridge end of ridge Comment
  JROH5199  Gastridium phleoides John Hunter Thomas 1992-5-25 25348 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15819  Gastridium phleoides John Rawlings, Ken Hickman 2016-7-21 1907 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  UCD66567  Gastridium phleoides A. A. Beetle 1942-6-11 3599 San Mateo Rt. 5, 15 miles south of San Bruno. Comment
  RSA405456  Genista maderensis Glenn A. Gorelick 1967-4-20 s.n. San Mateo Overlooking Daly City, near San Francisco. Comment
  CAS-BOT-BC219101  Genista monspessulana Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Radio Road Comment
  JROH1999  Genista monspessulana John H. Thomas 1960-4-22 8594 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2013  Genista monspessulana John Hunter Thomas 1983-4-3 21307 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  CAS-BOT-BC219148  Genista monspessulana Doris M. Ladd 1954-5-1 50 San Mateo Road to La Honda, near Five Points Comment
  JROH2613  Geranium dissectum John H. Thomas 1973-3-12 16486 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR122631  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6767 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  UCSC007748  Geranium dissectum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC909020  Gilia achilleifolia subsp. achilleifolia Herbert L. Mason 1927-4-23 3677 San Mateo summit of road between La Honda and Pescadero Creek; summit of road between La Honda and Pescadero Creek Comment
  JROH3150  Gilia achilleifolia subsp. multicaulis D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north slope, Searsville Ridge Comment
  SD38797  Gilia achilleifolia subsp. multicaulis E. A. Purer 1933-5-16 3638 San Mateo Alpine Road Comment
  UC133800  Gilia achilleifolia subsp. multicaulis A. Eastwood 1893-5-19 San Mateo San Carlos Mt. Comment
  JROH3164  Gilia clivorum John H. Thomas 1971-4-10 15756 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM284863  Githopsis specularioides Lyman Benson 1930-4-17 2082 San Mateo Stanford University, foothills. Upper Sonoran. 122 Comment
  CAS-BOT-BC303679  Glebionis coronaria Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo San Bruno Mts. N of school at Lower Guadalupe Canyon Parkway Comment
  SEINET8687951 Image available Glebionis segetum K. Thorne, J. Chandler 1986-7-25 4941 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach Comment
  RSA128833  Gnaphalium beneolens Roxana S. Ferris 1920-9-3 2052 San Mateo Near upper Mud Lake, Coal Mine Ridge, Santa Cruz Mountain Peninsula Comment
  JROH787  Gnaphalium palustre John Hunter Thomas 1980-11-27 20186 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  SEINET11849566  Gnaphalium ramosissimum E. A. Purer 1933-1 5420 San Mateo near Belmont Comment
  UCR121580  Gnaphalium stramineum George K. Helmkamp, E. A. Helmkamp 1999-6-28 5015 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JROH812  Grindelia camporum H. J. Dengler 1972-10-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; above kingfisher nesting site Comment
  RSA201473  Grindelia camporum J. T. Howell 1964-12-6 41032 San Mateo Near Southern Pacific RR station, Millbrae. Comment
  CAS-BOT-BC304540  Grindelia hirsutula Alice Eastwood 1912-6-10 322 San Mateo Crystal Springs Comment
  CAS-BOT-BC304542  Grindelia hirsutula W. R. Dudley 1894-5-30 s.n. San Mateo Santa Cruz Peninsula. Near Redwood City Comment
  CAS-BOT-BC304560  Grindelia hirsutula H. L. Mason 1921-7-3 s.n. San Mateo Pescadero - La Honda Road Comment
  CAS-BOT-BC304562  Grindelia hirsutula David D. Keck 1932-5-25 1783 San Mateo Hills two miles west of Belmont Comment
  JEPS41871  Grindelia hirsutula W. L. Jepson 1896-1 San Mateo Santa Cruz Mountains Comment
  JEPS7750  Grindelia hirsutula Peter H. Raven 1950-4-30 1959 San Mateo Montara Montara (windblown slopes facing ocean) 15 Comment
  SEINET3146830  Grindelia hirsutula L. S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  SJSU1660  Grindelia hirsutula R. E. Bousquet 1955-5-14 40 San Mateo E side Crystal Springs Reseroir Comment
  JROH816  Grindelia hirsutula D. E. Breedlove 1971-5-31 19369 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  POM288781  Grindelia stricta var. platyphylla Lyman Benson 1934-7-4 6101 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  JROH439  Hedera helix John H. Thomas 1967-6-1 12974 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC309542  Helenium puberulum A. D. E. Elmer 1903-7-1 4972 San Mateo Crystal Springs Lake Comment
  UC407001  Helenium puberulum Josephine D. Randall 1907-7-24 San Mateo near Crystal Springs Lake Comment
  CAS-BOT-BC309540  Helenium puberulum Lewis S. Rose 1941-9-13 41439 San Mateo San Mateo Canyon 30 Comment
  CAS-BOT-BC344859  Helenium puberulum Peter Rubtzoff 1976-6-30 8710 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH856  Helianthella californica var. californica John Hunter Thomas 1981-5-8 20564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176823  Helianthemum scoparium var. scoparium John H. Thomas 1961-5-5 9220 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. 152 Comment
  CAS-BOT-BC305928  Helminthotheca echioides Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC305929  Helminthotheca echioides Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  CAS-BOT-BC305930  Helminthotheca echioides R. E. Frenkel 1963-12-7 331 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.9 mile south-west of Spring Valley Road Comment
  SEINET11848411  Hemizonia congesta Unknown 1932-1 9100 San Mateo Half Moon Bay Comment
  CDA7038  Hemizonia congesta subsp. luzulifolia A. C. Browne 1950-8-12 San Mateo Portola. 0 Comment
  JEPS127874  Hemizonia congesta subsp. luzulifolia Adam C. Schneider 2013-5-17 185 San Mateo Crystal Springs Reservoir. Comment
  SBBG28892  Hemizonia congesta subsp. luzulifolia L. S. Rose 1935-9-21 San Mateo Redwood City Comment
  UC1069542  Hemizonia congesta subsp. luzulifolia G. E. Sindel 1935-8-28 342 San Mateo 2 mi se Crystal Springs Lake; Santa Cruz Quad. 167 Comment
  UCD133004  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-9-5 64070 San Mateo Emerald Lake, west of Redwood City. 243 Comment
  UCR66751  Hemizonia corymbosa Edith A. Purer 1933-7-27 5339 San Mateo Central Coast, Pigeon Point 15 Comment
  POM56175  Hemizonia corymbosa subsp. corymbosa C. F. Baker 1902-10-1 1739 San Mateo Pillar Point. Comment
  POM360315  Hemizonia luzulifolia L. S. Rose 1937-9-21 37662 San Mateo Emerald Lake, west of Redwood City. 183 Comment
  POM49411  Hemizonia pungens subsp. maritima L. R. Abrams 1903-9-26 4017 San Mateo Bay near Menlo Park. Comment
  JROH248  Heracleum maximum John H. Thomas 1961-5-5 9210 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  JROH884  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1970-1-1 15493 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH893  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-5-25 20643 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM87769  Hesperevax sparsiflora var. sparsiflora L. R. Abrams 1902-5-4 2417 San Mateo Woodside Comment
  SBBG28494  Hesperocyparis abramsiana var. abramsiana H. A. Dutton -Sep-1949 San Mateo North Fk of Butano Crk (common corner of Section 11 and 12 and 13 and 14, range 4W) Comment
  UCSB11749  Hesperocyparis macrocarpa Olson, Jim 1962-4-13 San Mateo 1 mile south of Halfmoon Bay, on Halfmoon Bay to San Mateo Road 9 Comment
  CAS-BOT-BC176210  Hesperolinon congestum L. R. Abrams 1920-6-1 7497 San Mateo Back of Redwood City Comment
  RSA187337  Hesperolinon congestum Fay Gilbert 1920-6-1 s.n. San Mateo Back of Redwood City. Comment
  UC191381  Hesperolinon congestum Edward Lee Greene 1887-6-11 San Mateo Comment
  JROH2923  Hesperolinon micranthum John H. Thomas 1963-5-15 10093 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2939  Hesperolinon micranthum John Hunter Thomas 1992-5-25 25342 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18376  Hesperolinon micranthum Carl B. Wolf 1927-7-1 532 San Mateo Above Emerald Lake, back of Redwood City. Comment
  RSA151712  Hesperolinon micranthum H. K. Sharsmith 1947-6-3 3975 San Mateo Above Redwood City, outer South Coast Ranges. 152 Comment
  CAS-BOT-BC148472  Heteromeles arbutifolia Cherie Wetzel 1969-7-8 919 San Mateo Serpentine near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  RSA451285  Heteromeles arbutifolia L. S. Rose 1942-8-11 42227 San Mateo Skyline Blvd, W of San Bruno. 91 Comment
  UC942934  Heteromeles arbutifolia Lewis S. Rose 1948-11-25 48241 San Mateo Woodside 365 Comment
  SEINET11915764  Heteromeles arbutifolia Unknown 1929-1 7301 San Mateo Kings Mt Comment
  RSA471598  Heterotheca sessiliflora subsp. bolanderi E. A. Purer 1933-8-4 5400 San Mateo Along Bayshore Hwy near Redwood City. Comment
  JROH3885  Heuchera micrantha John H. Thomas 1970-5-16 15628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC420888  Heuchera micrantha var. diversifolia L. S. Rose 1941-7-2 41289 San Mateo Kings Mountain 600 Comment
  UC202810  Heuchera micrantha var. diversifolia A. D. E. Elmer July, 1903 4762 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC420889  Heuchera micrantha var. diversifolia Kellogg; Brannan 1880-5-31 s.n. San Mateo Redwoods Comment
  RSA0063144  Heuchera micrantha var. hartwegii A. D. E. Elmer 1903-07 4762 San Mateo Pilarcitos Stone Dam. Comment
  CAS-BOT-BC319632  Hieracium albiflorum H. L. Mason 1921-7-14 s.n. San Mateo Pescadero Creek Comment
  SBBG44978  Hieracium albiflorum C. B. Wolf 1927-7-14 619 San Mateo summit of Kings Mtn Rd Comment
  SEINET4584971  Hierochloe occidentalis R. Oliver 1976-4-18 s.n. San Mateo San Mateo Memorial Park 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-BC55440  Hirschfeldia incana Phillip Wheeler 1965-6-7 s.n. San Mateo San Bruno Mountains. Bottom Owls Canyon. Comment
  UCD78192  Hoita orbicularis Robert E. Preston 2008-6-10 2640 San Mateo Between Lower Crystal Springs Reservoir and Crystal Springs Golf Course, ca. 0.33 mi W of jct Golf Course Rd and I-280 99 Comment
  UC38606  Holcus lanatus Michener and Bioletti 1893-6-15 120 San Mateo Baden Comment
  SEINET10867105  Hookera terrestris Helen M. Edwards 1917-4-12 Edwards s.n. 1917 San Mateo Crystal Sprngs Lake Comment
  SEINET10966310  Hookera terrestris Charles F. Baker 1902-4-6 Baker 462 San Mateo Crystal Springs Lake, California. Locally common on grassy slopes. Comment
  CAS-BOT-BC173839  Hordeum brachyantherum Peter Rubtzoff 1976-5-22 8545 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA149153  Hordeum brachyantherum John H. Thomas 1961-5-13 9341 San Mateo Coastal sand dunes at Franklin Point. Comment
  JROH5231  Hordeum brachyantherum subsp. californicum W. Lennihan 1989-5-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Left of fire road F going north, across from experimental tall poles. Comment
  SEINET6851597  Hordeum geniculatum Robert A. Evers, Clara V. Evers 1975-8-24 115025 -B San Mateo Trailer Villa, Redwood City. Comment
  CAS-BOT-BC285148  Hordeum marinum subsp. gussoneanum H. A. Borthwick 1920-6-1 207 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  CAS-BOT-BC285149  Hordeum marinum subsp. gussoneanum P. R. Hichborn 1920-5-18 236 San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  JROH5236  Hordeum marinum subsp. gussoneanum John H. Thomas 1963-5-12 10081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10859740  Hordeum marinum subsp. gussoneanum Delzie Demaree 1932-5-16 Demaree 9139 San Mateo Spring valley lakes. Comment
  POM205100  Hordeum murinum subsp. glaucum Copeland 1903-6-9 3334 San Mateo Montara Point. Comment
  CAS-BOT-BC289458  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10123 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC289459  Hordeum murinum subsp. leporinum John H. Thomas 1962-4-24 9847 San Mateo San Bruno Mountain in northern part of county 396 Comment
  SD99477  Hordeum murinum subsp. leporinum Ira L. Wiggins 1975-4-17 22143 San Mateo NE side of Southern Pacific right-of-way, between San Francisquito Creek and Willow Road, Menlo Park Comment
  CAS-BOT-BC271362  Hordeum vulgare W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Comment
  UC618479  Horkelia californica Alice Eastwood, John Thomas Howell 1938-6-26 6069 San Mateo Pigeon Point Comment
  POM250804  Horkelia californica D. D. Keck 1939-7-1 5008 San Mateo 3 miles S of Pescadero, 1 mile from the ocean. 61 Comment
  UC625417  Horkelia californica L. R. Abrams and I. L. Wiggins 1939-6-3 436 San Mateo 1/2 mi inland the sand dunes (along cultivated field); Ano Nuevo Point Comment
  CAS-BOT-BC143924  Horkelia cuneata var. sericea A. D. E. Elmer 1903-4-1 5036 San Mateo Cemeteries Comment
  CAS-BOT-BC143925  Horkelia cuneata var. sericea W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  CAS-BOT-BC143927  Horkelia cuneata var. sericea A. A. Heller 1906-6-8 8374 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  CDA5496  Hydrocotyle sibthorpioides T. C. Fuller 1970-5-12 19531 San Mateo Emily Brown property, 3045 Ralston Avenue, Burlingame. 0 Comment
  UCD160243  Hypericum canariense Christopher Dillis 2015-5-15 6 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  SD39737  Hypochaeris radicata Edith A. Purer 1932-7-18 4005 San Mateo Half Moon Bay Comment
  UC1069670  Hypochaeris radicata N. K. Carlson 1935-6-29 109 San Mateo 1 mi s Pescadero; Santa Cruz Quad. Comment
  RSA14212  Hypochaeris radicata C. B. Wolf 1926-10-19 199 San Mateo East slope of La Honda Grade; Santa Cruz Mts. Comment
  RSA127080  Iris douglasiana John H. Thomas 1959-4-4 7656 San Mateo About 0.7 miles S. of Gazos Creek. About 6.5 miles southward from Pescadero. 46 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
  UCR198043  Iris douglasiana S. Seiki, Patricia Carter 1998-5-2 02 San Mateo Montara Mountain, city of Pacifica, c. 2.4 mi from San Pedro Valley along Devil's Slide heading west Comment
  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
  UCSB880  Iris douglasiana Walker, Clifford 1954-4-20 San Mateo junction of Skyline Blvd and Highway to Half Moon Bay Comment
  CAS-BOT-BC133660  Iris longipetala L. R. A. 1902-4-13 2337 San Mateo Lake San Andreas Comment
  CAS-BOT-BC133662  Iris longipetala Alice Eastwood 1918-5-4 s.n. San Mateo San Bruno Hills Comment
  SJSU7515  Iris longipetala Lewis S. Rose 1968-3-26 68009 San Mateo S base San Bruno Mts, S San Francisco 30 Comment
  SBBG1123  Iris longipetala H. and M. Dearing 1933-5-14 2766 San Mateo Skyline Boulevard, S of San Francisco Comment
  POM290948  Iris missouriensis Lyman Benson 1929-3-21 1021 San Mateo Wet places north of South San Francisco Comment
  CAS-BOT-BC57728  Isoetes howellii W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge, near Black Mountain Comment
  CAS-BOT-BC57733  Isoetes howellii L. R. Abrams 1923-4-19 10108 San Mateo Alameda de los Pulgas back of Menlo Park Comment
  SJSU16039  Isolepis carinata Toni Corelli, John Rawlings 2016-4-29 1764 San Mateo Cascade Field along Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  CAS-BOT-BC112612  Isolepis cernua John Hunter Thomas 1959-7-8 8017 San Mateo Low moist coastal bluffs as Pescadero Beach. Comment
  CAS-BOT-BC112626  Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point Comment
  CAS-BOT-BC112610  Isolepis cernua John Hunter Thomas 1973-4-25 16689 San Mateo Stanford University Lands along Sand Hill Road near Whiskey Hill Road. Comment
  CAS-BOT-BC340139  Jaumea carnosa W. R. Dudley 1908-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Laguna Salada Comment
  JROH2774  Juglans hindsii John H. Thomas 1980-11-18 20174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC109972  Juncus W. R. Dudley 1900-5-18 s.n. San Mateo Santa Cruz Peninsula. Near San Andreas Lake above keeper's house. Comment
  UCD164386  Juncus bufonius Peter Rubtzoff 1977-6-7 9029 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCR121578  Juncus bufonius George K. Helmkamp, E. A. Helmkamp 1999-6-28 5012 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  POM290138  Juncus bufonius var. bufonius Lyman Benson 1930-5-26 2145 A San Mateo Stanford University. Lake Searsville. 152 Comment
  RSA17947  Juncus bufonius var. bufonius Carl B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo Pescadero. Comment
  RSA276358  Juncus bufonius var. congestus Jane Turner, Francis M. Ball 1962-7-7 SK&F- 1083 San Mateo Highway 1, ca. 10 miles N of Santa Cruz County line. Comment
  SJSU16033  Juncus capitatus Toni Corelli, John Rawlings 2016-4-29 1773 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  UC1101015  Juncus effusus subsp. pacificus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1589 San Mateo about 1 mi s Half Moon Bay Comment
  POM312825  Juncus effusus subsp. pacificus Malcolm A. Nobs, S. Galen Smith 1949-8-26 1589 San Mateo About 1 mile south of Half Moon Bay. Comment
  UC652558  Juncus lescurii Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9289 San Mateo Ano Nuevo Point Comment
  UCD141619  Juncus nevadensis Frank W. Gould 1939-5-6 657 San Mateo on coast Highway 13 miles north of Santa Cruz County line. 15 Comment
  JROH4488  Juncus occidentalis John Hunter Thomas 1982-5-18 20934 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old racing oval. Comment
  UC1101090  Juncus patens Malcolm A. Nobs and S. Galen Smith 1949-8-26 1587 San Mateo about 1 mi s Half Moon Bay Comment
  UCR280169  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1978-7-8 9226 San Mateo San Francisco Bay Region, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 220 Comment
  JEPS128398  Juncus xiphioides Adam C. Schneider 2014-5-17 137 San Mateo Crystal Springs Reservoir. Comment
  JROH4505  Juncus xiphioides John H. Thomas 1967-6-1 12960 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4507  Juncus xiphioides John H. Thomas 1973-4-14 16568 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4516  Juncus xiphioides John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4520  Juncus xiphioides John Hunter Thomas 1983-5-31 22317 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat dock Comment
  JROH5666  Juncus xiphioides John Rawlings 2011-8-10 0997 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek delta near open water. 104 Comment
  JROH4043  Kickxia spuria John H. Thomas 1976-10-16 18422 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH5267  Koeleria macrantha John H. Thomas 1967-5-12 12868 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH945  Lactuca saligna John H. Thomas 1974-6-30 17459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC341632  Lagophylla ramosissima LeRoy Abrams 1902-9-28 3003 San Mateo Portola Comment
  JROH968  Lagophylla ramosissima John Hunter Thomas 1986-6-7 24084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC341628  Lagophylla ramosissima James I. McMurphy 1905-9-15 s.n. San Mateo Goat Ranch, just south of junction of State Highway 5 (Skyline Blvd.) and Old La Honda Road Comment
  CAS-BOT-BC341629  Lagophylla ramosissima James I. McMurphy 1906-9-24 s.n. San Mateo Coal Mine Ridge Comment
  RSA107476  Lagophylla ramosissima L. S. Rose 1955-9-19 55176 San Mateo Skyline Boulevard, 7 miles west of Saratoga. 686 Comment
  CHSC276  Lasthenia californica J. Turner 1930-5-2 San Mateo Moss Beach. Comment
  POM55156  Lasthenia californica E. B. Copeland 1903-6-5 3338 San Mateo Montara Point. Comment
  CAS-BOT-BC339054  Lasthenia californica Javier Penalosa 1963-3-9 2689 San Mateo San Bruno Mountain. 1/2 mi. east of 1314 ft. summit 304 Comment
  CAS-BOT-BC339055  Lasthenia californica Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, hills, Jefferson Avenue Comment
  CAS-BOT-BC339057  Lasthenia californica Lewis S. Rose 1956-5-28 56081 San Mateo Skyline Blvd w. of San Mateo 182 Comment
  CAS-BOT-BC339094  Lasthenia californica W. R. Dudley 1899-5-14 s.n. San Mateo About hills southwest of Baden Comment
  RSA107089  Lasthenia californica L. S. Rose 1956-5-28 56081 San Mateo Skyline Blvd W of San Mateo. 183 Comment
  UC1073373  Lasthenia californica subsp. californica George B. Rossbach 1955-3-26 517 San Mateo n of radio tower; San Bruno Mountain 335 Comment
  UC483354  Lasthenia californica subsp. californica W. R. Dudley 1897-5-1 San Mateo south San Francisco Comment
  UC762042  Lasthenia californica subsp. californica R. F. Hoover 1939-4-21 4055 San Mateo 2 mi s of Colma Comment
  JEPS20311  Lasthenia californica subsp. californica Lewis S. Rose 1956-5-28 56081 San Mateo Skyline Blvd. w San Mateo 182 Comment
  UC90022  Lasthenia californica subsp. californica Alice Eastwood 1901-5-19 San Mateo Blenheim Comment
  CAS-BOT-BC324422  Lasthenia californica subsp. macrantha J. H. Thomas 1949-6-4 582 San Mateo Along coast, 1.4 miles south of road from coast to Pescadero Comment
  CAS-BOT-BC355496  Lasthenia glaberrima R. Bacigalupi 1923-4-16 s.n. San Mateo Field near San Francisquito Creek near Stanford University Comment
  UC1598598  Lasthenia glabrata subsp. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
Read comments
Sep 9 2011
  CAS-BOT-BC355540  Lasthenia glabrata var. glabrata John H. Thomas 1954-4-2 3792 San Mateo 1.5 miles east of center of Redwood City 0 Comment
  CAS-BOT-BC355542  Lasthenia glabrata var. glabrata John H. Thomas 1954-4-2 3793 San Mateo 1.5 miles east of center of Redwood City 0 Comment
  SEINET7076116  Lasthenia minor A. G. Vestal 1955-5-31 s.n. San Mateo Pescadero Beach [Pescadero State Beach]. (NAD 27; 37.2631? deg. North Latitude, 122.4118? deg. West Longitude, UTM Zone 10, 552155mE, 4124015mN). [GPS Coordinate: WGS84/NAD83]. Comment
  RSA51309  Lasthenia minor Peter H. Raven 1950-4-30 1953 San Mateo Montara. 15 Comment
  SFV3758  Lasthenia minor B. J. McCaskill 1954-5-8 295 San Mateo Moss Beach. On bank above beach. Comment
  SEINET12153854  Lathyrus jepsonii Unknown 1933-1 70 San Mateo Alpine Rd Comment
  CHSC20641  Lathyrus jepsonii var. californicus Robert A. Schlising; S. Banwar 1963-3-15 2447 San Mateo Along King's Mtn. Road southeast of entrance to Huddart Park. Comment
  UC15323  Lathyrus jepsonii var. californicus Alice Eastwood Apr 1896 San Mateo Crystal Springs Comment
  POM19357  Lathyrus vestitus subsp. bolanderi Edward L. Greene 1902-1-15 8231 San Mateo West side Kings Mountain. Comment
  RSA11932  Lathyrus vestitus subsp. vestitus Elmer I. Applegate 1895-3-9 140 San Mateo Woodside Comment
  CDA9326  Lathyrus vestitus var. vestitus M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 878 San Mateo Pacifica: San Pedro Valley County Park, at Brooks Creek Trail trailhead, near visitor center's parking lot. 74 Comment
  JEPS55372  Lathyrus vestitus var. vestitus R. L. Pendleton 1907-4-20 626 San Mateo Colma 182 Comment
  UC1128955  Lathyrus vestitus var. vestitus H. S. Yates 1935-5-8 5203 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  UC1300854  Lathyrus vestitus var. vestitus Helen K. Sharsmith 1963-2-16 5142 a San Mateo above Daly City (lower slopes of San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  UC75194  Lathyrus vestitus var. vestitus unknown 1903-4-6 1893 San Mateo San Bruno Hills Comment
  UC85315  Lathyrus vestitus var. vestitus C. F. Baker 1902-1-15 240 San Mateo w side Kings Mountain Comment
  UCR252690  Lavatera arborea A. C. Sanders 2014-8-3 41237 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
  RSA254232  Lavatera arborea Robert A. Norris 1975-3-31 2291 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  CAS-BOT-BC323153  Layia chrysanthemoides David D. Keck 1932-5-6 1487 San Mateo Near Skyline Boulevard, west of Millbrae Highlands. Comment
  CAS-BOT-BC323182  Layia chrysanthemoides John Thomas Howell 1933-5-26 11343 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC323151  Layia chrysanthemoides David D. Keck 1933-5-11 2307 San Mateo Skyline Boulevard, E of Salada, northern San Mateo County. Comment
  CAS-BOT-BC323178  Layia chrysanthemoides Elizabeth McClintock; Paul Reeberg 1987-5-31 s.n. San Mateo San Bruno Mountains. Comment
  CAS-BOT-BC323180  Layia chrysanthemoides K. Curran 1885-4-1 s.n. San Mateo Millbrae Comment
  CAS-BOT-BC321095  Layia gaillardioides W. R. Dudley 1902-4-26 s.n. San Mateo Alpine Road Comment
  UC913051  Layia gaillardioides David D. Keck 1932-6-1 1798 San Mateo 1. 5 mi ne of La Honda; Santa Cruz Mountains 213 Comment
  CAS-BOT-BC321097  Layia gaillardioides David D. Keck 1932-5-6 1483 San Mateo Skyline Blvd. W of Millbrae Highlands, Santa Cruz Mountains. 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-BC327469  Layia hieracioides John H. Thomas 1953-5-2 3085 San Mateo Sunset Beach State Park, near USG&GS Markers: Park 1931 and Park 2-1931. 15 Comment
  CAS-BOT-BC327477  Layia hieracioides Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain; base of Quarry 2. Comment
  JEPS22902  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo 5 mi sw Palo Alto; Searsville Lake 152 Comment
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Jul 14 2009
  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
  JROH985  Layia hieracioides John H. Thomas 1974-5-3 17236 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA124759  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo Jasper Ridge. About 5 miles SW of Palo Alto. 152 Comment
  RSA195579  Layia hieracioides John H. Thomas 1966-4-22 11568 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  UC828938  Layia hieracioides John Thomas Howell 1938-5-1 13769 San Mateo Colma Canyon Comment
  UCR70738  Layia hieracioides David D. Keck 1932-5-11 1760 San Mateo Santa Cruz Mtns, Above Searsville Lake, on La Honda Road, E slope of mountains. 250 Comment
  CAS-BOT-BC327508  Layia hieracioides L. R. Abrams 1907-8-26 s.n. San Mateo King's Mt., Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC327527  Layia hieracioides James I. McMurphy 1909-5-25 s.n. San Mateo Grade W of Crystal Springs Lakes Comment
  UC913054  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo e of Salada; Skyline Boulevard Comment
  CAS-BOT-BC382089  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Springs Lake Comment
  JROH999  Layia platyglossa John Hunter Thomas 1980-5-8 19944 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD69035  Layia platyglossa P. Rodriguez-Rojo 1997-3-27 San Mateo Jasper Ridge. Serpentine annual grasslands. UTM: 10SEM4168 155 Comment
Read comments
Sep 9 2011
  JEPS415  Lemna gibba W. L. Jepson 1923-10-18 10261 San Mateo w of Colma (near ocean) Comment
  JROH5675  Lemna minuta John Rawlings 2014-7-29 1277 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Cr. streambed, up-stream from old Boething Nursery crossing. 65 Comment
  RSA135760  Leontodon leysseri John H. Thomas 1956-7-2 6040 San Mateo Along Graham Hill Road, 1.9 miles from Felton RR Station. 183 Comment
  CAS-BOT-BC221536  Lepechinia calycina Fred Hemphill 1973-4-22 721 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  UC191843  Lepechinia calycina Edward Lee Greene 1887-6-12 San Mateo San Mateo Comment
  UC25890  Lepechinia calycina J. Burtt Davy 1893-6-17 813 San Mateo Belmont Comment
  JROH1505  Lepidium didymum Toni Corelli 2004-5-19 275 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road H, West stream bank along fence at Bear Creek crossing 82 Comment
  RSA131154  Lepidium didymum John H. Thomas 1958-8-1 7370 San Mateo About 0.5 mi N of mouth of Pescadero Creek. Sea level. 0 Comment
  CAS-BOT-BC89139  Lepidium didymum Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountains. Crocker Hills. Near Guadalupe Road. Comment
  UCD115359  Lepidium didymum J. D. Skoss 1948-7-25 53 San Mateo San Vicente Canyon near Montara. Comment
  CAS-BOT-BC89217  Lepidium draba Phillip C. Wheeler 1967-5-7 s.n. San Mateo San Bruno Mountains. Crocker Hills, near old Bayshore Highway. Comment
  CDA19902  Lepidium latifolium D. Pendleton 2002-5-28 PDR P 120141 San Mateo San Francisco Bay Area; Channel alongside Hwy 101, behind parking lot of Mervyn's on Walnut St. 0 Comment
  JROH1542  Lepidium nitidum John H. Thomas 1967-6-1 12953 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1554  Lepidium nitidum John Hunter Thomas 1991-4-11 24984 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12595  Lepidium nitidum Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountains. Below top of mountain in vicinity of radio station. Comment
  CAS-BOT-BC12752  Lepidium oxycarpum David D. Keck 1932-3-24 1401 San Mateo Redwood City. At border of San Francisco Bay. Comment
  RSA65802  Lepidium perfoliatum D. D. Keck 1932-3-24 1400 San Mateo Redwood City, at border of San Francisco Bay. Comment
  JROH5274  Leptochloa fusca subsp. uninervia W. Lennihan 1980-11-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake (formed by Corte Madera Creek). Comment
  CAS-BOT-BC226600  Leptosiphon ambiguus J. H. Thomas 1949-4-1 214 San Mateo West of Redwood City Comment
  CAS-BOT-BC226602  Leptosiphon ambiguus John H. Thomas 1971-5-2 15866 San Mateo Near intersection of Canada Road and Edgewater [Edgewood] Road, about three miles westward from Redwood City 152 Comment
  UCD14333  Leptosiphon androsaceus Marcy Dickerson 1983-4-23 110 San Mateo San Mateo Co., Jasper Ridge, Sanford Biological Preserve, within 1 mile of Westridge Road Entrance; Comment
  SEINET3861922  Leptosiphon croceus Genevieve K. Walden 2009-6-22 203 San Mateo Moss Beach State Beach, Wylvale Rd. on cliff above beach.; 0 Comment
  POM65858  Leptosiphon liniflorus L. R. Abrams 1901-05 1562 San Mateo Woodside Comment
  SD214610  Leptosiphon parviflorus Carl B. Wolf 1929-5-25 3727 San Mateo Pebble Beach so. of Pescadero Comment
  SD67317  Leptosiphon pygmaeus subsp. continentalis F. Howe 1967-4-14 San Mateo 7 miles from San Mateo on road to Half Moon Bay 399 Comment
  CDA5157  Leptospermum laevigatum T. C. Fuller 1969-5-15 18476 San Mateo Hillslope opposite the welfare farm, Highway 92 to San Mateo, east limits of Half Moon Bay. 0 Comment
  CAS-BOT-BC324052  Lessingia arachnoidea W. R. Dudley 1909-10-10 s.n. San Mateo East side of Crystal Springs Reservoir, Santa Cruz Mountains Comment
  CDA8165  Lessingia arachnoidea M. Knudsen 1982-7-28 San Mateo Crystal Springs Reservoir, just below the dam. 0 Comment
  LA47382  Lessingia arachnoidea L. S. Rose; 1941-9-6 41434 San Mateo San Mateo Canyon 90.0 Comment
  RSA195537  Lessingia arachnoidea John H. Thomas 1958-9-15 7473 San Mateo 0.4 miles north of Dam on San Mateo Creek along Skyline Blvd 91 Comment
  UC33162  Lessingia arachnoidea Alice Eastwood 1896-9-1 San Mateo Crystal Springs Reservoir Comment
  JROH1018  Lessingia glandulifera var. glandulifera John Hunter Thomas 1981-5-19 20608 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1025  Lessingia glandulifera var. glandulifera John Hunter Thomas 1986-6-9 24095 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1027  Lessingia glandulifera var. glandulifera Carol Zabel 1989-9-4 36 San Mateo Jasper Ridge Biological Preserve, Stanford University; near side of Road E, 100 yards down from intersection of Roads D, E, and F Comment
  CAS-BOT-BC324171  Lessingia hololeuca Cherie Wetzel 1969-7-8 924 San Mateo near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JEPS40998  Lessingia hololeuca Lewis S. Rose 1964-9-5 64072 San Mateo w of Redwood City; Emerald Lake Comment
  JROH1031  Lessingia hololeuca Rachel Hays 1972-7-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA169310  Lessingia hololeuca L. S. Rose 1964-9-5 s.n. San Mateo Emerald Lake, W of Redwood City. 244 Comment
  CAS-BOT-BC342092  Leucanthemum vulgare John H. Thomas 1964-6-19 10424 San Mateo 0.9 miles south of Tunitas Creek near Coast Highway 60 Comment
  JROH2981  Ligustrum lucidum John Hunter Thomas 1978-5-23 19223 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2984  Ligustrum lucidum Ann Lambrecht, Paul Heiple 2008-1-9 39 San Mateo Jasper Ridge Biological Preserve, Stanford University; on Trail c Comment
  JEPS67912  Lilaea scilloides L. R. Heckard and J. H. Thomas 1972-4-16 2895 San Mateo ca 1.5 mi s Pulgas Water Temple (sw of Upper Crystal Springs Reservoir, along Old Canada road (private)) 121 Comment
  CAS-BOT-BC451671  Lilaea scilloides W. R. Dudley 1906-10-12 s.n. San Mateo Santa Cruz Mountain Peninsula. Pond 15 and 20. Comment
  CAS-BOT-BC451673  Lilaea scilloides H. L. Mason 1922-3-28 s.n. San Mateo Pigeon Pt. Comment
  RSA3936  Lilaea scilloides W. R. Dudley 1893-05 s.n. San Mateo Santa Cruz Mountain peninsula: Back of Mira Vista, near Stanford University Comment
  CAS-BOT-BC130792  Lilium pardalinum H. L. Mason 1920-6-25 s.n. San Mateo Pescadero Creek Comment
  JROH4689  Lilium pardalinum subsp. pardalinum John Hunter Thomas 1989-6-17 24776 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  CDA42388  Limonium binervosum Whitney Thornton 2011-9-19 s.n. San Mateo Greco Island. Comment
  CAS-BOT-BC158105  Limonium californicum W. R. O. 1973-10-10 1227 San Mateo San Francisco Bay; Redwood City (Mobile Estates) Comment
  SEINET3358242 Image available Limonium californicum Lewis S. Rose 1942-1 42225 San Mateo Brisbane 1 Comment
  CDA36129  Limonium perezii Michael Perlmutter 2011-6-15 San Mateo Burlingame, Sanchez Marsh. 0 Comment
  JROH4065  Limosella acaulis John Hunter Thomas 1985-8-7 23707 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4067  Limosella acaulis Ann Lambrecht, Carol Zabel 2004-6-23 10 San Mateo Jasper Ridge Biological Preserve, Stanford University. At landing below Searsville Lab Comment
  JROH5853  Limosella acaulis Herb Dengler 1982-11-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; beach below old hamburger stand, Searsville Lake Comment
  SEINET3696424 Image available Linanthus androsaceus Lewis S. Rose 1933-4-30 33135 San Mateo Redwood City. Comment
  UC336384  Linanthus androsaceus unknown 491 San Mateo Colma, S.P.R.R. Colma Comment
  JEPS48590  Linanthus androsaceus James G. Daly 1934-1 332 San Mateo Upper Alpine Canyon, sw San Mateo County Santa Cruz Mts., San Gregorio Watershed 30 Comment
Read comments
Mar 12 2009
  JROH3183  Linanthus dichotomus D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge 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
  UC73618  Linanthus liniflorus Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  POM138877  Linum angustifolium Copeland 1903-6-9 3307 San Mateo Montara Point. Comment
  UC198505  Linum usitatissimum Katharine Brandegee 1917-8-29 San Mateo Moss Beach Comment
  JEPS85571  Lithocarpus densiflorus Craig Dremann 1986-8-30 320 San Mateo La Honda; along Calif Highway 84 (La Honda-Woodside Rd) at mile marker 8.37 at intersection of Pescadero Rd Comment
  UC1135272  Lithocarpus densiflorus C. M. Belshaw 1935-1-25 1472 San Mateo 2.5 mi nw Sierra Moreno Peak; Santa Cruz Quad. 609 Comment
  RSA152237  Lithocarpus densiflorus var. densiflorus I. L. Wiggins 1925-04 1661 San Mateo On Kings Mountain Road one mile above Woodside just above the first Pseudotsuga menziesii on the right edge of the road. Comment
  CAS-BOT-BC430776  Lithophragma affine Margaret A. Barry 1937-5-1 52 San Mateo Coal Mine Ridge Comment
  JROH3887  Lithophragma affine John H. Thomas 1971-4-3 15746 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC402461  Lithophragma heterophyllum Milo S. Baker May 1904 San Mateo near Burlingame; near Burlingame Comment
  UC858160  Lithophragma heterophyllum Lewis S. Rose 1939-4-12 39062 San Mateo Crystal Springs Lake 152 Comment
  CAS-BOT-BC60212  Lobularia maritima Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. Reservoir Hill. Comment
  JROH729  Logfia gallica John H. Thomas 1961-4-29 9193 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH738  Logfia gallica John Hunter Thomas 1977-6-16 18750 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  JROH743  Logfia gallica John Hunter Thomas 1982-5-18 20944 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  JROH747  Logfia gallica John Hunter Thomas 1990-5-29 24863 San Mateo Jasper Ridge Biological Preserve, Stanford University; near picnic area Comment
  JROH261  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1967-6-1 12969 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132686  Lomatium dasycarpum subsp. dasycarpum A. D. E. Elmer 1903-04 s.n. San Mateo Crystal Springs Lake. Comment
  RSA452094  Lomatium dasycarpum subsp. dasycarpum Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  UC306544  Lomatium dasycarpum subsp. dasycarpum A. D. E. Elmer April, 1903 4818 San Mateo Crystal Springs Lake Comment
  JROH257  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1963-3-2 10027 San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of ridge near Westridge end Comment
  SJSU1078  Lomatium macrocarpum C. W. Sharsmith 1951-4-6 5821 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  CAS-BOT-BC240599  Lonicera hispidula W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Belmont Reservoir Comment
  HSC23785  Lonicera hispidula var. vacillans Mary Katherine Wicksten 1971-6-18 37 San Mateo Huddart Park, near lower parking lot. Comment
  SEINET8907183  Lonicera interrupta A. D. 1974-1 San Mateo hwy. 35 ca. 6 mi. from Jct. hwy. 92 701 Comment
  CAS-BOT-BC243967  Lonicera involucrata var. ledebourii C. F. Baker 1903-4-1 1918 San Mateo San Andreas Lake Comment
  UC306767  Lonicera involucrata var. ledebourii A. D. E. Elmer June, 1903 4272 San Mateo Lake San Andreas Comment
  UCD163731  Lonicera involucrata var. ledebourii Peter Rubtzoff 1980-12-11 9635 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC243965  Lonicera involucrata var. ledebourii Walter Knight 1964-9-14 834 San Mateo Ridge between Peak Mt. and Highway 1 Comment
  SEINET2062208 Image available Lotus formosissimus C. W. Sharsmith 1947-4-13 6758 San Mateo Near Pescadero Beach, vicinityof Pescadero Point. 50 Comment
  SEINET3696856 Image available Lotus formosissimus Ethel Crum 1934-4-29 1701 San Mateo South of Pescadero 30 Comment
  UC15578  Lotus formosissimus J. Burtt Davy 1895-4-20 1030 San Mateo Lake San Andreas Comment
  UC729630  Lotus formosissimus Carl B. Wolf 1929-5-10 3703 San Mateo s of Pescadero; Pigeon Pt. 30 Comment
  UC80966  Lotus formosissimus Katharine Brandegee 1905-6-20 San Mateo seashore of Halfmoon Bay Halfmoon Bay Comment
  RSA120448  Lotus stipularis W. R. Dudley 1895-6-7 s.n. San Mateo Top of ridge between Butano and Pescadero. Comment
  UC80760  Lotus stipularis var. stipularis C. F. Baker 1902-5-10 805 San Mateo Kings Mt. Comment
Read comments
May 17 2013
  HSC24026  Ludwigia peploides subsp. peploides Mary Katherine Wicksten 1971-6-20 70 San Mateo San Francisquito Creek, by Oak Knoll School Comment
  CAS-BOT-BC198274  Lupinus unspecified 1982-4-24 s.n. San Mateo San Francisco Peninsula Comment
  POM10874  Lupinus affinis C. F. Baker 1903-4-6 471 San Mateo Crystal Springs Lake. Comment
  UC127029  Lupinus affinis Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  UC81978  Lupinus affinis C. F. Baker 1902-4-6 473 San Mateo Crystal Springs Lake Comment
  RSA0065265  Lupinus albifrons Daisie Huang 2006-8-6 06080604 San Mateo Roadside next to Crystal Springs Reservoir. 123 Comment
  SEINET5558503  Lupinus albifrons H. S. Gentry 1931-1 31 San Mateo Collected about 2 miles W of San Bruno. Comment
  SEINET5766835 Image available Lupinus albifrons Lewis S. Rose 1931-1 s.n. San Mateo Belmont Comment
  CAS-BOT-BC195793  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-22 48497 San Mateo Highway 5 - junction Pagemill Road, 0.5 miles north Comment
  CAS-BOT-BC195791  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48460 San Mateo Highway 5 - junction San Bruno Road 3, 0.8 miles south 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-BC196113  Lupinus albifrons var. collinus John H. Thomas 1955-4-6 4833 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  UCD106267  Lupinus albifrons var. collinus A. A. Heller 1907-4-25 8462 San Mateo San Bruno Hills. Comment
  SEINET10871208  Lupinus albifrons var. flumineus Charles Piper Smith 1946-3-26 Smith 46115 San Mateo Hwy 5, san francisco co jail road n Comment
  CAS-BOT-BC8524  Lupinus apricus C. P. Smith 1908-4-13 1404 San Mateo Stanford University, field back of Cedro Cottage Comment
  CHSC903  Lupinus arboreus A. Koopman 1929-5-9 San Mateo Moss Beach. 9 Comment
  SBBG11114  Lupinus arboreus D. E. Breedlove 1961-6-18 599 San Mateo 3 mi S of rd to Half Moon Bay 365 Comment
  UC201982  Lupinus arboreus A. D. E. Elmer May, 1903 4414 San Mateo Colma Comment
  UCD106655  Lupinus arboreus June McCaskill 1954-5-8 297 San Mateo Moss Beach. Comment
  SEINET10488460  Lupinus arboreus Didley 1906-6-10 DIDLEY s.n. San Mateo Santa cruz mountain peninsula. By road, s cabil ridge Comment
  RSA6289  Lupinus arboreus var. arboreus D. D. Keck 1932-5-11 1767 San Mateo Two miles north of San Gregorio. 15 Comment
  JEPS101819  Lupinus arboreus var. eximius Dean W. Taylor 2000-4-25 17437 San Mateo along dirt road 1 mi W of North Peak, Montara Mountain 411 Comment
  JROH5635  Lupinus bicolor John Rawlings 2014-5-28 1247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Dennis Martin Site Marker near path to San Francisquito Creek crossing 77 Comment
  UC1057458  Lupinus bicolor G. Thomas Robbins 1937-4-11 103 San Mateo along roadside near Redwood City; near Redwood City Comment
  SEINET10903830  Lupinus bicolor var. umbellatus Walter Knight, Irja Knight 1964-4-13 Knight 709 San Mateo Power line ridge in grassland. Comment
  POM257513  Lupinus densiflorus var. aureus Carl B. Wolf 1929-5-17 3712 San Mateo Alpine road east of Skyline Blvd. 305 Comment
  POM11076  Lupinus densiflorus var. palustris A. D. E. Elmer 1903-06 4413 San Mateo Lake San Andreas. Comment
  UC1294006  Lupinus formosus E. K. Balls 1958-7-22 23592 San Mateo Hwy 5 at turn-off to San Bruno (San Bruno Hills); San Bruno Hills 213 Comment
  UC703121  Lupinus formosus Alice Eastwood, John Thomas Howell 1941-7-4 9688 San Mateo Crystal Spring Lakes Comment
  UC865157  Lupinus formosus var. formosus Alice Eastwood, John Thomas Howell 1938-6-26 6077 San Mateo Crystal Springs Lake Comment
  SEINET10961856 Image available Lupinus latifolius Charles F. Baker Baker 470 San Mateo Crystal Springs Lake. Comment
  UC201917  Lupinus microcarpus var. densiflorus A. D. E. Elmer June, 1903 4413 San Mateo Lake San Andreas Comment
  JROH2129  Lupinus nanus John H. Thomas 1975-4-19 17801 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2133  Lupinus nanus John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2144  Lupinus nanus Toni Corelli 2010-3-29 363 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Road E at junction of Trail 11 and Trail 9 106 Comment
  UC15978  Lupinus nanus Ivar Tidestrom May 1894 San Mateo Comment
  SEINET10936508  Lupinus nanus subsp. latifolius Walter Knight, Irja Knight 1964-9-2 Knight s.n. San Mateo Mouth of colma canyon in sand. Comment
  POM11071  Lupinus succulentus A. D. E. Elmer 1903-05 4827 San Mateo Portola. Comment
  POM276524  Lupinus succulentus Lyman D. Benson 1930-4-27 2077 San Mateo Stanford University. 122 Comment
  POM190281  Lupinus variicolor D. D. Keck 1932-5-11 1967 San Mateo Two miles north of San Gregorio. 15 Comment
  SEINET10936779  Lupinus variicolor Smith 1948-4-23 Smith 48138 San Mateo Hwy 1, montara, government property. Comment
  SEINET12154794  Lupinus variicolor M. T. Doutt 1931-1 422 San Mateo Skyline Blvd, W of Hillbrae Comment
  SJSU10398  Luzula comosa E. C. Garbett 1961-4-8 San Mateo Searsville Lake Park at head of San Francisquito Creek Comment
  CAS-BOT-BC441265  Luzula macrantha Margaret A. Barry 1937-4-21 7 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC441267  Luzula macrantha E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC441371  Luzula subsessilis M. S. Jussel 1931-4-18 s.n. San Mateo Colma Canyon Comment
  UCR279850  Luzula subsessilis Peter Rubtzoff 1976-3-28 8450 San Mateo San Francisco Bay Region, San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; East Fork Colma Creek Canyon 220 Comment
  CAS-BOT-BC441373  Luzula subsessilis Ira L. Wiggins 1928-4-14 2907 San Mateo Alpine Creek Road Comment
  JROH3366  Lysimachia arvensis John H. Thomas 1975-4-19 17791 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5568  Lysimachia arvensis John Rawlings 2013-4-19 1151 San Mateo Jasper Ridge Biological Preserve, Stanford University. South edge of Trail 11 in chaparral. 145 Comment
  JROH5907  Lysimachia arvensis L. Nordby 1982-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Searsville Lab on the west side of the lake Comment
  JROH3375  Lysimachia minima John Hunter Thomas 1982-4-30 20883 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2945  Lythrum hyssopifolia John H. Thomas 1974-10-26 17630 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR121493  Lythrum hyssopifolia George K. Helmkamp, E. A. Helmkamp 1999-6-28 4957 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
  JROH2947  Lythrum hyssopifolia John Hunter Thomas 1977-6-16 18751 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  RSA0011331  Lythrum hyssopifolia Josephine Randall 1907-6-29 244 San Mateo Kings Mt. Road; Santa Cruz Peninsula. Comment
  CDA19835  Lythrum salicaria R. Pummer 2001-11-21 PDR 064586 San Mateo San Francisco Bay Area; La Honda Homeowners Association on Entrada Rd. 0 Comment
  CAS-BOT-BC342589  Madia Cherie Wetzel 1969-7-28 994 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC343914  Madia elegans A. D. E. Elmer 1903-5-1 4662 San Mateo Alpine School House Comment
  CAS-BOT-BC343915  Madia elegans J. H. Thomas 1958-9-15 7475 San Mateo 0.4 miles north of dam on San Mateo Creek along Skyline Blvd. 91 Comment
  CAS-BOT-BC343904  Madia elegans Barrett Anderson 1986-8-12 3252 San Mateo Crystal Springs Rd at Skyline Blvd. 92 Comment
  CAS-BOT-BC343917  Madia elegans H. M. Hall 1930-8-17 12882 San Mateo East side of Crystal Spring Lake, on grade going to San Mateo Comment
  CAS-BOT-BC344498  Madia exigua John H. Thomas 1971-5-2 15867 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JROH1043  Madia exigua John H. Thomas 1967-5-31 12925 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1065  Madia exigua John Hunter Thomas 1992-5-25 25349 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC344521  Madia exigua R. E. Frenkel 1964-5-26 508 San Mateo On Portola Ridge Road, SFWD, 0.7 mile north of Sawyer Ridge Road 320 Comment
  CAS-BOT-BC343326  Madia gracilis W. R. Dudley 1894-5-20 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Redwood City Comment
  JROH1067  Madia gracilis John H. Thomas 1958-5-10 7142 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1071  Madia gracilis John H. Thomas 1969-5-28 15093 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1076  Madia gracilis John Hunter Thomas 1978-5-12 19204 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  JROH1092  Madia gracilis John Hunter Thomas 1988-5-12 24455 San Mateo Jasper Ridge Biological Preserve, Stanford University; by old quarry below dam Comment
  CAS-BOT-BC343334  Madia gracilis David D. Keck 1932-5-6 1485 San Mateo Hills just west of Millbrae Highlands 120 Comment
  POM87787  Madia madioides L. R. Abrams 1902-5-20 2474 San Mateo Kings Mountain Comment
  SEINET5782363 Image available Madia madioides L. S. Rose 1941-7-2 41287 San Mateo Kings Mountain Comment
  UCR121558  Madia madioides George K. Helmkamp, E. A. Helmkamp 1999-6-28 4977 B San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  POM362194  Madia madioides Donald A. Johansen 1932-4-15 680 San Mateo Between Woodside and Kings Mountain Comment
  CAS-BOT-BC345111  Madia sativa Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  HSC24008  Madia sativa Mary Katherine Wicksten 1971-6-15 21 San Mateo Huddart Park near horse ring Comment
  CAS-BOT-BC345113  Madia sativa Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. April Brook Comment
  SEINET11810637  Madia sativa Unknown 1932-1 9191 San Mateo Los Francos Woods 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
  JROH4692  Maianthemum racemosum D. D. Davis 1903-4-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Base of Searsville Ridge Comment
  RSA3925  Maianthemum racemosum subsp. amplexicaule Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC514167  Maianthemum stellatum John H. Thomas 1961-5-7 9280 San Mateo San Bruno Mountain in northern part of county Comment
  JROH4709  Maianthemum stellatum John Hunter Thomas 1977-6-16 18746 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4713  Maianthemum stellatum John Hunter Thomas 1981-4-5 20260 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC514165  Maianthemum stellatum Margaret A. Barry 1937-4-21 14 San Mateo Woods on Coal Mine Ridge Comment
  RSA176727  Malacothamnus arcuatus John H. Thomas 1962-6-6 9906 San Mateo Jasper Ridge Biological Expermental Area, about 5 miles SW of Palo Alto; just above Searsville Lake. Comment
Read comments
Nov 5 2009
  POM223310  Malacothamnus arcuatus L. S. Rose 1935-6-11 s.n. San Mateo 3 miles W of Stanford University Comment
  UC138326  Malacothamnus davidsonii J. W. Congdon 1897-7-27 San Mateo Belmont Comment
  JROH2963  Malacothamnus fasciculatus John Hunter Thomas 1977-6-7 18732 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC204085  Malacothamnus hallii Alice Eastwood 1912-6-10 346 San Mateo Crystal Springs Comment
  CAS-BOT-BC204103  Malacothamnus hallii Carl B. Wolf 1929-6-8 3746 San Mateo 2.5 mi. w. of Los Altos on the road to La Honda Comment
  CAS-BOT-BC344965  Malus pumila Peter Rubtzoff 1981-6-30 9656 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  SEINET7247931  Malva arborea Bob Schmalzel 1974-1 s.n. San Mateo Growing along highway 1 200 yards from the Pacific Ocean 9 miles south of Half Moon Bay. 9 Comment
  CAS-BOT-BC206683  Malva assurgentiflora John H. Thomas 1967-5-2 12734 San Mateo Colma, near Hillside Blvd. at Cypress Lawn Cemetery Comment
  UCD116691  Malva pseudolavatera John Thomas Howell 1968-5-26 44502 San Mateo Burlingame. Comment
  JROH1901  Marah fabacea John Hunter Thomas 1991-5-17 25055 San Mateo Jasper Ridge Biological Preserve, Stanford University; between dam and San Francisquito Creek near pump house Comment
  HSC7023  Marah fabacea P. A. Murphy 1965-4-16 10 San Mateo About 5 mi. from Half Moon Bay on the Higgin's Canyon Rd. Comment
  CAS-BOT-BC422676  Meconella californica W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula. By road from San Mateo to Crystal Springs Reservoir Comment
  CAS-BOT-BC422685  Meconella californica Arthur Menzies 1972-4-9 s.n. San Mateo San Bruno Mountain. Buckeye Canyon south of Crocker Industrial Park. Comment
  JEPS51536  Meconella californica Ivar Tidestrom 1894-3-22 San Mateo Comment
  JROH2152  Medicago arabica John H. Thomas 1971-4-24 15772 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2169  Medicago polymorpha John H. Thomas 1975-4-19 17792 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA128987  Medicago polymorpha Peter H. Raven 1950-6-3 2203 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  CAS-BOT-BC269479  Melica californica George Oberlander 1950-4-23 808 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC269480  Melica californica Walter Knight; Irja Knight 1965-4-25 s.n. San Mateo San Bruno Mountain. Owl's Canyon Comment
  UCD87172  Melica californica Ogden C. Riddle 1941-4-6 74 San Mateo Near Half Moon Bay, Finney Ridge. 243 Comment
  CAS-BOT-BC269478  Melica californica W. R. Dudley 1900-3-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Fields East of Salida Valley Comment
  CAS-BOT-BC281410  Melica imperfecta K. Wagnon 1939-3-24 137 San Mateo Youngman's Canyon on Trinity Rd 2.5 miles E of Glen Ellen Comment
  JROH5301  Melica imperfecta John H. Thomas 1977-5-14 18609 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5306  Melica imperfecta John Hunter Thomas 1980-5-8 24852 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing. Comment
  CAS-BOT-BC264188  Melica subulata W. R. Dudley 1898-4-24 s.n. San Mateo El Corte Madera, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC264240  Melica torreyana John H. Thomas 1961-5-14 9374 A San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek, San Francisco Watershed Reserve 152 Comment
  CAS-BOT-BC264242  Melica torreyana Dean Wm. Taylor 1988-4-8 9512 San Mateo Northern slope of southeast ridge of the mountain near the ridgecrest (San Francisco South 7 1/2 U.S.G.S quadrangle, right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain, San Bruno Mountain 237 Comment
  JROH5315  Melica torreyana John H. Thomas 1975-5-26 17904 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2187  Melilotus indicus John H. Thomas 1973-6-15 16838 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2185  Melilotus indicus John H. Thomas 1971-5-30 15952 San Mateo Jasper Ridge Biological Preserve, Stanford University; at dam Comment
  UC1714386  Mentha pulegium U. S. Grant IV 1926-9-6 San Mateo King's Mt. 609 Comment
  JROH2810  Mentha pulegium John H. Thomas 1976-10-16 18398 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Searsville Lake at the mouth of Corte de Madera Creek Comment
  CAS-BOT-BC166665  Mentha spicata Peter Rubtzoff 1978-9-16 9268 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH2826  Mentha spicata Carol Zabel 2006-8-23 64 San Mateo Jasper Ridge Biological Preserve, Stanford University; Dennis Martin site Comment
  OBI4715  Mercurialis annua T. C. Fuller 1960-6-23 4542 San Mateo E fence line, Sanchez Abode House, S side of Linda Mar Blvd, Pedro Valley Comment
  UCD142325  Mercurialis annua T. C. Fuller 1958-10-16 1444 San Mateo Pedro Valley, E of Sanchez Adobe House, S of Linda Mar Blvd. Comment
  RSA176742  Micropus californicus John H. Thomas 1963-5-12 10086 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  JROH1120  Micropus californicus var. californicus John H. Thomas 1961-4-29 9187 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176780  Microseris bigelovii John H. Thomas 1963-5-20 10146 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  OBI15616  Microseris douglasii Lewis S. Rose 1966-5-2 66037 A San Mateo Emeral Lake, W of Redwood City 91 Comment
  CAS-BOT-BC349015  Microseris douglasii subsp. douglasii A. D. E. Elmer 1903-5-1 4721 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC349017  Microseris douglasii subsp. douglasii James McMurphy 1906-5-8 s.n. San Mateo Head of Crystal Springs Lakes Comment
  CAS-BOT-BC349029  Microseris douglasii subsp. douglasii Ned Cahill 1974-4-19 150 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1138  Microseris douglasii subsp. douglasii John H. Thomas 1955-5-6 4993 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
  UC92108  Microseris douglasii subsp. tenella T. S. Brandegee, E. L. Greene 1886-5-9 San Mateo Belmont Comment
  POM203100  Microseris douglasii subsp. tenella L. S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  CAS-BOT-BC349192  Microseris elegans R. E. Frenkel 1964-5-26 512 San Mateo On Portola Ridge Road, SFWD, 0.7 mile north of Sawyer Ridge Road 320 Comment
  CAS-BOT-BC322716  Microseris paludosa Kenton L. Chambers 1956-6-20 1049 San Mateo Pebble Beach near Pescadero Point between Highway 1 and the ocean Comment
Read comments
Jul 22 2020
  UC2044060  Microseris paludosa Neal Kramer 2005-5-14 CR 440 San Mateo POST Cloverdale Ranch. North end of the Mesa approx. 0.4 mi east of Lake Lucerne. Comment
  JROH4071  Mimulus aurantiacus var. aurantiacus Richard L. Garber 1971-5-18 21 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4076  Mimulus aurantiacus var. aurantiacus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1063401  Mimulus aurantiacus var. aurantiacus H. S. Yates 1935-2-3 5013 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quadrangle Comment
  UCSB11439  Mimulus aurantiacus var. aurantiacus Olson, Jim 1962-4-17 San Mateo 1 mile east of Halfmoon Bay on road to San Mateo 18 Comment
  UCSC007764  Mimulus aurantiacus var. aurantiacus Becky Hendricks, Chris Lay 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC886188  Mimulus grandis Alice Eastwood 1912-6-2 210 San Mateo Granada Comment
  JROH4092  Mimulus guttatus John Hunter Thomas 1981-4-23 20472 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4089  Mimulus guttatus D. E. Breedlove 1971-5-5 19328 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Francisquito Creek, 500 yards below Searsville Dam Comment
  UCD122715  Mimulus microphyllus R. S. Woglum 1935-5-25 996 San Mateo King City-Coalinga, along State Highway 198. Comment
  CAS-BOT-BC388826  Minuartia douglasii A. D. E. Elmer 1903-4-1 5042 San Mateo San Bruno Hills Comment
  CAS-BOT-BC388834  Minuartia douglasii George Oberlander 1950-4-22 750 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CDA3325  Mirabilis jalapa W. Davis 1962-7-23 San Mateo San Bruno. 0 Comment
  RSA63116  Monardella purpurea L. S. Rose 1950-5-20 50135 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  CAS-BOT-BC214085  Monardella villosa Josephine D. Randall 1907-6-8 179 San Mateo Portola Valley, Santa Cruz Peninsula Comment
  CAS-BOT-BC214087  Monardella villosa Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC214174  Monardella villosa L. R. Abrams 1920-6-1 7496 San Mateo Back of Redwood City, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC214175  Monardella villosa Ned Cahill 1974-5-13 253 San Mateo Near the interesection of Canada and Edgewood Roads about 3 mi westward from Redwood City Comment
  UCD125292  Monardella villosa J. M Tucker 1951-8-6 2219 San Mateo On northwest-facing hillslope; M. R. Mattei ranch, ca. 1.5 miles northeast of Pescadero. Comment
  UC1041059  Monardella villosa subsp. franciscana J. W. Congdon 1901-7-7 San Mateo Road Millbrae to Spring Valley Comment
  RSA0022802  Monardella villosa subsp. subserrata E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel. Comment
  JROH2837  Monardella villosa subsp. villosa John H. Thomas 1971-5-30 15958 San Mateo Jasper Ridge Biological Preserve, Stanford University; along trail below dam Comment
  JROH2849  Monardella villosa subsp. villosa John Hunter Thomas 1983-6-29 22712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC24050  Monardella villosa subsp. villosa Mary Katherine Wicksten 1971-6-24 115 San Mateo Huddart Park, by park entrance Comment
  JROH2835  Monardella villosa subsp. villosa John H. Thomas 1963-6-23 10166 San Mateo Jasper Ridge Biological Preserve, Stanford University; near exclosure on northern slope of ridge Comment
  JROH1156  Monolopia gracilens Herb Dengler 1963-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA101034  Montia fontana G. Oberlander 1950-4-16 632 San Mateo Along stream below San Andreas dam, San Francisco Watershed Reserve Comment
  CAS-BOT-BC445194  Montia parvifolia A. D. E. Elmer 1903-5-1 4577 San Mateo Iverson's Place Comment
  UCD163600  Morella californica Peter Rubtzoff 1980-12-11 9634 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
  JEPS127796  Muilla maritima Adam C. Schneider with C. Matt Guilliams 2013-4-7 65 San Mateo Along dirt road running parallel to the overhead power transmission lines. Comment
  UC1206482  Muilla maritima Le Roy Abrams 1902-4-13 2330 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC508586  Muilla maritima Le Roy Abrams 1902-4-13 2330 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC243706  Myoporum laetum Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo Above Hillside School, San Bruno Mountains Comment
  CDA28803  Myosotis latifolia D. G. Kelch 2009-6-9 9 .403 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  RSA133650  Myosotis latifolia John H. Thomas 1954-4-3 3815 San Mateo La Honda Creek, about 1 mile north of La Honda. 152 Comment
  RSA152078  Myosotis latifolia John H. Thomas 1962-5-12 9332 San Mateo San Bruno Mountain. 244 Comment
  RSA18201  Myosotis latifolia C. B. Wolf 1929-5-25 3735 San Mateo 2 miles from Pescadero on Alpine Creek. Comment
  JROH2694  Myriophyllum aquaticum John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2700  Myriophyllum aquaticum John Hunter Thomas 1989-6-6 24758 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2691  Myriophyllum aquaticum John H. Thomas 1974-6-30 17464 San Mateo Jasper Ridge Biological Preserve, Stanford University. At dam. Comment
  RSA132434  Myriophyllum spicatum John H. Thomas 1955-12-6 5513 San Mateo At the southern end of San Andreas Lake. Comment
  JROH6206  Narcissus tazetta Ann Lambrecht 2007-3-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Rd. 20 and south of the Douglas Iris Site. 85 Comment
  JROH5661  Navarretia heterodoxa John Rawlings 2014-6-7 1261 San Mateo Jasper Ridge Biological Preserve, Stanford University; on both sides of Trail 9 through chamise chaparral east of WIFI station 197 Comment
  UC101994  Navarretia heterodoxa Alice Eastwood Jun 1897 San Mateo Crystal Springs Comment
  POM65123  Navarretia squarrosa C. F. Baker 1903-6-30 3360 San Mateo Pilarcitos Comment
  JROH3214  Navarretia squarrosa John Hunter Thomas 1977-6-16 18760 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval. Comment
  JROH2736  Nemophila heterophylla John Hunter Thomas 1991-4-11 24978 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks Comment
  POM65294  Nemophila menziesii var. menziesii C. F. Baker 1903-4-6 1970 San Mateo San Bruno hills, San Francisco. Comment
  CAS-BOT-BC219476  Nemophila parviflora Mrs. E. C. Sutliffe 1933-5-11 s.n. San Mateo Memorial Park, near La Honda Comment
  CAS-BOT-BC219484  Nemophila parviflora Kellogg; Brannan 1870-5-31 s.n. San Mateo Redwood Comment
  CAS-BOT-BC219487  Nemophila parviflora Mrs. E. C. Sutliffe 1933-5-25 s.n. San Mateo Purissima Canyon Comment
  JROH2743  Nemophila parviflora var. parviflora Herbert Dengler 1967-4-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC233463  Nicotiana glauca J. H. Thomas 1964-3-31 10293 San Mateo Bank of San Francisquito Creek at University Avenue Bridge, Palo Alto Comment
  CAS-BOT-BC140425  Oemleria cerasiformis A. D. E. Elmer 1903-3-1 4579 San Mateo Woodside Comment
  CAS-BOT-BC140427  Oemleria cerasiformis W. R. Dudley 1900-3-1 s.n. San Mateo By road N. of Summit Springs Comment
  CAS-BOT-BC140441  Oemleria cerasiformis E. G. Dudley 1904-3-3 42 San Mateo Portola Valley, Santa Cruz Mts. Comment
  CAS-BOT-BC140443  Oemleria cerasiformis Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC389684  Oemleria cerasiformis Jeanie Nieri 1953-1-31 s.n. San Mateo Huddart Park Comment
  RSA176762  Oemleria cerasiformis John H. Thomas 1963-4-17 10035 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto.Moist slope along road near Searsville Lake. Comment
  SEINET5563016  Oemleria cerasiformis H. S. Gentry 1931-1 17 San Mateo 1.5 mile W of San Mateo, Half-Moon Bay road. Comment
  SJSU8084  Oemleria cerasiformis S. H. Casey 1969-4-17 227 San Mateo W facing slope of Colma Canyon, San Bruno Mt Comment
  UC311169  Oemleria cerasiformis A. D. E. Elmer Mar 1903 4579 San Mateo Woodside Comment
  UC860379  Oemleria cerasiformis Lewis S. Rose 1937-3-20 37004 San Mateo w of Tanforan (Skyline Blvd) 182 Comment
  UC860384  Oemleria cerasiformis S. B. Show 1907-2-18 8 San Mateo San Francisquito Creek 213 Comment
  JROH292  Oenanthe sarmentosa Carol Zabel 1989-8-1 18 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Middle Lake Comment
  UCD127754  Oenanthe sarmentosa Collector unknown 1924-1 s.n. San Mateo La Honda. Comment
  CHSC57090  Oenothera elata subsp. hookeri Steven Triano 1988-5-24 209 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  SD27768  Oenothera elata subsp. hookeri Carl B. Wolf 1927-6-29 564 San Mateo On coast, 3.0 miles south of San Gregorio. Comment
  UCD106882  Oenothera perennis T. C. Fuller 1970-5-12 19529 San Mateo Emily (Mrs. Hillary) Brown prop., 3045 Ralston Ave., Burlingame. Comment
  JROH2990  Olea europaea John H. Thomas 1967-6-1 12981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC500318  Orobanche uniflora subsp. occidentalis W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula: Rocks above San Mateo Creek Comment
  RSA6295  Orthocarpus floribundus D. D. Keck 1932-5-6 1490 San Mateo 4 miles west of Burlingame, on the Skyline Blvd. Comment
  SEINET3159752  Orthocarpus floribundus K. C. sn San Mateo Millbrae Comment
  POM286519  Orthocarpus lithospermoides Arthur L. Cohen 1935-4-21 636 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  HSC23966  Osmorhiza berteroi Mary Katherine Wicksten 1971-6-17 74 San Mateo Huddart Park, along Chickadee Trail Comment
  RSA152259  Osmorhiza berteroi I. L. Wiggins 1925-04 1681 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  CDA28462  Oxalis corymbosa H. Struffenegger, J. Reppas 1974-1-9 San Mateo Podesta Nursery, 1951 Pulgas Avenue, East Palo Alto. 0 Comment
  UC1057442  Oxalis pes-caprae G. Thomas Robbins 1937-4-11 72 San Mateo just s San Fancisco (Skyline Boulevard) Comment
  POM177457  Oxalis pes-caprae L. R. Abrams, I. L. Wiggins 1930-11-13 176 San Mateo Along Skyline Blvd. near Colma Comment
  CDA15877  Parietaria judaica J. Xerogeanes 2000-1-4 PDR 1242905 San Mateo North Coast; Chorry Rd., San Bruno. 0 Comment
  UC1101567  Paspalum distichum Verne Grant and Herbert L. Mason 1946-8-28 13085 San Mateo at entrance to San Francisco County Prison Comment
  JEPS10360  Pedicularis densiflora W. L. Jepson 1922-3-19 9544 San Mateo Buri-Buri Ridge Comment
  JROH4114  Pedicularis densiflora John H. Thomas 1976-4-2 18080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4107  Pedicularis densiflora Duncan M. Porter 1961-1-18 736 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of Jasper Ridge Comment
  JROH4120  Pedicularis densiflora Brenda Butner and Toni Corelli 1990-3-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Escobar gate area---oak woodland on west side of road Comment
  SEINET12270442  Pedicularis densiflora J. H. Thomas 1959-1 7663 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto 152 Comment
  JEPS82090 Image available Pedicularis dudleyi Rimo Bacigalupi with J. H. Thomas and L. Heckard 1961-5-23 7712 San Mateo 1/3 mi n of its confulence with Pescadero Creek (e side of Peters Creek); Peters Creek 134 Comment
  LA209494  Pedicularis dudleyi E. B. Copeland; 1982-4-9 707 San Mateo big basin of Pescadero creek Comment
Read comments
Jun 12 2020
  CAS-BOT-BC207028  Pelargonium vitifolium Roland M. Block 1894-5-1 s.n. San Mateo King's Mountain Comment
  CAS-BOT-BC207030  Pelargonium vitifolium J. H. Thomas 1959-8-16 8066 San Mateo About 2 miles north of Pigeon Point, along the coast 15 Comment
  CAS-BOT-BC207032  Pelargonium vitifolium L. R. Abrams; I. L. Wiggins 1939-6-3 437 San Mateo 2 miles north of Pigeon Point Light Comment
  JEPS23863  Pelargonium vitifolium J. H. Thomas 1959-8-16 8066 San Mateo about 2 mi n Pigeon Point (along the coast) 15 Comment
  UC1063604  Pellaea andromedifolia R. C. Wilson 1935-8-2 244 San Mateo head of Harington Creek; Santa Cruz Quadrangle Comment
  JROH104  Pellaea mucronata var. mucronata W. R. Dudley 1895-2-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Rocks near Searsville Reservoir Comment
  UC88019  Pentachaeta alsinoides E. L. Greene 1886-5-9 San Mateo Belmont Comment
  CAS-BOT-BC330501  Pentachaeta bellidiflora Lewis S. Rose 1948-3-31 48032 San Mateo Skyline Blvd., above San Andreas Lake. 152 Comment
  UC133379  Pentachaeta exilis C. F. Baker 1902-4-4 446 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC77012  Pentagramma triangularis subsp. triangularis David D. Keck 1932-2-12 1365 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake. 304 Comment
  CAS-BOT-BC355896  Pericallis hybrida Phillip C. Wheeler 1965-6-20 s.n. San Mateo San Bruno Mountain. Across road from KRON*TV Comment
  POM259787  Perideridia gairdneri subsp. gairdneri I. L. Wiggins, Roxana Ferris 1939-8-2 9295 San Mateo Ano Nuevo Point Comment
  UC2044059  Perideridia gairdneri subsp. gairdneri Neal Kramer 2002-8-3 CR 235 San Mateo POST Cloverdale Ranch. North end of the Mesa approx. 0.4 mi east of Lake Lucerne. Comment
  CAS-BOT-BC413607  Persicaria amphibia A. D. E. Elmer 1903-7-1 4650 San Mateo San Pedro Comment
  JROH3242  Persicaria amphibia Le Roy Abrams 1900-10-1 1002 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JROH3251  Persicaria amphibia John Hunter Thomas 1981-7-12 20705 San Mateo Jasper Ridge Biological Preserve, Stanford University. On old beach in shallow water. Comment
  JROH6176  Persicaria maculosa John Rawlings, Ann Lambrecht 2017-10-3 2303 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek Delta 103 Comment
  UC1206459  Petasites frigidus var. palmatus Roxana S. Ferris 1918-3-30 750 San Mateo 1 mi above Evans Creek; Peters Creek 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
  SD27918  Petasites palmatus Carl B. Wolf 1928-3-14 1536 San Mateo La Honda Grade, Santa Cruz Mountains. 149 Comment
  RSA427691B  Phacelia californica Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  SEINET3121782 Image available Phacelia californica John Thomas Howell 1929-8-11 4373 San Mateo King Mountain 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
  UC1084388  Phacelia divaricata G. Thomas Robbins 1937-4-11 96 San Mateo near Spring Valley Lakes (along road to Woodside) Comment
  POM128436  Phacelia divaricata L. R. Abrams 1902-4-13 2324 San Mateo Crystal Spring. 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
  CDA34191  Phacelia malvifolia D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .172 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  SEINET3158196  Phacelia nemoralis L. S. Rose 1939-6-16 39281 San Mateo Skyline Blvd., above Woodside 564 Comment
  CAS-BOT-BC258934  Phalaris aquatica Cecilia Murray 1963-7-23 s.n. San Mateo Portola Valley 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
  JROH5357  Phalaris aquatica John Hunter Thomas 1978-7-14 19261 San Mateo Jasper Ridge Biological Preserve, Stanford University. New low flow crossing of San Francisquito Creek. Comment
  JROH5368  Phalaris aquatica John Hunter Thomas 1983-7-7 22828 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC259005  Phalaris californica A. D. E. Elmer 1903-6-1 4699 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC259007  Phalaris californica Walter Knight; Irja Knight 1965-6-20 s.n. San Mateo San Bruno Mountain. Crystal Cave Canyon Comment
  JROH5382  Phalaris lemmonii John Hunter Thomas 1970-4-29 15613 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM199090  Phalaris minor A. D. E. Elmer 1903-06 4427 San Mateo Crystal Springs Lake. Comment
  RSA128643  Phalaris minor P. H. Raven 1950-6-3 297 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  RSA17945  Phalaris minor C. B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo San Gregorio Comment
  CAS-BOT-BC131761  Phoenix dactylifera Eric Walther 1920-10-1 s.n. San Mateo Near Court House, Redwood City Comment
  CAS-BOT-BC222504  Pholistoma auritum var. auritum Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  SD38530  Pholistoma auritum var. auritum Marie Cummings 1933-4-24 3729 San Mateo San Francisquito Creek, San Mateo and Santa Clara Cos. Comment
  SD49975  Phoradendron leucarpum subsp. tomentosum John H. Thomas 1959-8-22 8080 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto 152 Comment
  SEINET10542162  Physocarpus opulifolius Charles H. Boxmeyer 1894-1 Boxmeyer s.n. San Mateo Comment
  HSC23884  Pickeringia montana Mary Katherine Wicksten 1971-6-15 18 San Mateo Huddart Park near horse ring Comment
  SEINET11130514 Image available Pickeringia montana M. E. Springer 1946-9-1 739 San Mateo Road near Skyline Blvd. Comment
  SEINET12151537  Pickeringia montana J. I. McMurphy 1906-1 50 San Mateo King's Mtn., Santa Cruz Mtns 457 Comment
  RSA15202  Pickeringia montana var. montana Carl B. Wolf 83 San Mateo On the La Honda Grade. Comment
  UCR253351  Picris echioides A. C. Sanders 2014-8-3 41232 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  JROH119  Pinus radiata John H. Thomas 1977-4-15 18531 San Mateo Jasper Ridge Biological Preserve, Stanford University 118 Comment
  CAS-BOT-BC137314  Piperia elegans W. R. Dudley 1896-2-16 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC228027  Plagiobothrys Mary Nimitz 1952-5-10 77 San Mateo Top of Jasper Ridge above Searsville Lake Comment
  CAS-BOT-BC228134  Plagiobothrys chorisianus Edward Lee Greene 1886-5-10 s.n. San Mateo Belmont Comment
  CAS-BOT-BC228135  Plagiobothrys chorisianus Josephine D. Randall 1907-7-23 12 San Mateo The Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  UC78129  Plagiobothrys chorisianus T. S. Brandegee 1890-5-20 San Mateo Searsville Comment
Read comments
Nov 12 2007
  CAS-BOT-BC228126  Plagiobothrys chorisianus Peter H. Raven 1950-4-16 1816 San Mateo Between Geneva Avenue (San Francisco County) and San Bruno Mountains 182 Comment
  CAS-BOT-BC228137  Plagiobothrys chorisianus Roxana S. Ferris 1920-4-23 1953 San Mateo The Santa Cruz Mountain Peninsula. On abandoned road above N fork of Peters Creek, about spring 640 Comment
  RSA128816  Plagiobothrys chorisianus Roxana S. Ferris 1920-4-23 s.n. San Mateo Santa Cruz Mountain peninsula, on abandoned road above north fork of Peters Creek 640 Comment
  RSA589903  Plagiobothrys chorisianus W. R. Dudley 1894-4-21 s.n. San Mateo Near Cyrstal Springs Reservoir Comment
  SDSU5438  Plagiobothrys chorisianus D. F. Howe 1969-6-6 4640 San Mateo 18.5 miles north of San Mateo - Santa Cruz Co. line on the # 1. Comment
  CAS-BOT-BC228156  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-17 s.n. San Mateo The Santa Cruz Mountain Peninsula. Pasture near Pebble Beach, Pescadero Comment
  SD39907  Plagiobothrys chorisianus var. chorisianus Edith A. Purer 1933-7-27 5392 San Mateo Two miles south of Pigeon Point. Comment
  JROH1419  Plagiobothrys chorisianus var. hickmanii John Hunter Thomas 1983-5-3 21878 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  JROH1422  Plagiobothrys nothofulvus John H. Thomas 1968-4-19 14291 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD129730  Plagiobothrys reticulatus var. reticulatus Roy E. Buck, James A. West 1985-4-29 527 San Mateo Cascade Ranch Comment
  CAS-BOT-BC389766  Plagiobothrys tenellus R. D. Hennessey 1964-4-26 s.n. San Mateo Area where Pilarcitos Creek empties into ocean Comment
  SJSU15215  Plantago elongata Toni Corelli 2010-5-4 623 San Mateo Ano Nuevo, Cascade Field, west of Atkinson Bluff Trail, edge of coastal bluff 10 Comment
  UC625428  Plantago elongata L. R. Abrams and I. L. Wiggins 1939-6-3 422 San Mateo Ano Nuevo Point Comment
  JEPS41013  Plantago erecta Lewis S. Rose 1965-5-3 65056 San Mateo n end San Bruno Mountain 182 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
  JROH3110  Plantago erecta John H. Thomas 1961-4-29 9177 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC203055  Plantago erecta A. D. E. Elmer Apr 1903 4795 San Mateo San Bruno Hills Comment
  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
  CAS-BOT-BC164683  Plantago hirtella subsp. galeottiana Peter Rubtzoff 1977-11-24 9142 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon near upper rim. Comment
  JROH3137  Plantago major John Hunter Thomas 1981-9-24 20752 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18371  Plantago maritima Carl B. Wolf 1927-6-29 537 San Mateo Along coast south of Pebble Beach near Pescadero. Comment
  UC136736  Plantago maritima var. californica Dr. E. B. Copeland 1903-6-5 3331 San Mateo Montara Point Comment
  CAS-BOT-BC92017  Platystemon californicus Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon. Comment
  SEINET3854785 Image available Platystemon californicus Lewis S. Rose 1932-4-10 32139 San Mateo Redwood City. Comment
  SEINET7097923  Platystemon californicus 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 mN, 4121109 mN. Comment
  CAS-BOT-BC92024  Platystemon californicus Phillip Wheeler 1965-3-30 s.n. San Mateo San Bruno Mountain. Wheeler's Canyon. Comment
  SD38887  Plectritis ciliosa Cumming, Mc Callum 1933-5-10 3716 San Mateo Near Spring Valley lakes Comment
  JEPS20199  Plectritis macrocera L. R. Abrams 1904-4-10 San Mateo on road from Woodside to Crystal Springs (Santa Cruz Mountain Peninsula); Santa Cruz Mountain Peninsula Comment
  JROH4249  Plectritis macrocera John H. Thomas 1969-4-20 14896 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC257691  Poa annua Peter Rubtzoff 1988-5-3 9915 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, near its crossing of the upper part of East Fork Colma Creek. Comment
  CAS-BOT-BC258900  Poa annua Peter Rubtzoff 1988-5-3 9913 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, east of Saddle Trail Junction. Comment
  CAS-BOT-BC258902  Poa annua Peter Rubtzoff 1988-5-3 9914 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, near its crossing of the upper part of East Fork Colma Creek. Comment
  CAS-BOT-BC261645  Poa annua Peter Rubtzoff 1988-5-3 9910 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, east of Saddle Trail Junction. Comment
  CAS-BOT-BC254544  Poa douglasii Robert Robertson 1954-5-1 128 San Mateo At back of beach N of San Gregorio Creek 6 Comment
  CAS-BOT-BC254545  Poa douglasii Paul F. Covel No date on label 1533 San Mateo Moss Beach Comment
  CAS-BOT-BC246707  Poa howellii Ira L. Wiggins 1928-4-14 2908 San Mateo Alpine Creek Road Comment
  JROH5409  Poa howellii John H. Thomas 1964-4-19 10329 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam in among redwoods near creek. Comment
  JROH5413  Poa howellii John Rawlings 2013-4-16 1137 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension south of the Dengler Transect after a short uphill section where the trail passes below a boulder. 84 Comment
  UC1190036  Poa howellii Roxana S. Ferris 1921-3-20 2175 San Mateo road from Alpine Creek to Pescadero Creek; Santa Cruz Mt Peninsula 396 Comment
  CAS-BOT-BC261644  Poa infirma Peter Rubtzoff 1988-5-3 9912 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, east of Saddle Trail Junction. Comment
  RSA135779  Poa secunda W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula; Near Summit Springs, Kings Mt. Comment
  CAS-BOT-BC243116  Poa secunda subsp. secunda John H. Thomas 1971-5-2 15839 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City 152 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-BC243122  Poa secunda subsp. secunda Abrams 1901-3-1 1016 San Mateo Menlo Park Reservoir Comment
  RSA0022156  Pogogyne serpylloides John H. Thomas 1966-4-29 11588 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  POM64835  Polemonium carneum L. R. Abrams 1916-4-22 5576 San Mateo Santa Cruz Mountains Peninsula: Pilarcitos Canyon Comment
  POM65523  Polemonium carneum A. D. E. Elmer 1903-07 4771 San Mateo Pilarcitos Stone Dam. Comment
  JROH3220  Polygala californica John Rawlings 2007-5-30 1013 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vicinity of an abandoned camper shell near a small drainage west of the switchback zone of the Escobar/Webb Ranch horse trail. 100 Comment
  CAS-BOT-BC413757  Polygonum argyrocoleon John Thomas Howell 1953-6-3 29057 San Mateo Bayshore Highway, Redwood City Comment
  CAS-BOT-BC109236  Polygonum paronychia John H. Thomas 1954-6-11 4285 San Mateo About 0.25 mile north of Pigeon Point Light House along low coastal bluffs. Comment
  JEPS50659  Polygonum punctatum W. L. Jepson 1910-8-18 4159 San Mateo Butano Creek Comment
  CAS-BOT-BC76946  Polypodium californicum Ned Cahill 1974-4-30 232 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  JROH83  Polypodium californicum John Hunter Thomas 1981-2-14 20229 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UCD136938  Polypodium californicum Lewis S. Rose 1964-2-6 64001 San Mateo Kings Mountain. 609 Comment
  CAS-BOT-BC76803  Polypodium glycyrrhiza W. R. Dudley 1893-2-19 s.n. San Mateo Santa Cruz Peninsula - near La Honda Comment
  UCD150642  Polypodium scouleri Collector unknown 1974-5-30 28 San Mateo San Bruno Mtn. Radio Rd., before first radio station, and west of Radio Rd. below first radio station. On roadcut. 365 Comment
  CAS-BOT-BC233156  Polypogon interruptus A. D. E. Elmer 1903-7-1 4694 San Mateo Pilarcitos Stone Dam Comment
  JROH5677  Polypogon interruptus John Rawlings 2014-5-28 1249 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Up-stream edge of low flow crossing of San Francisquito Creek. 81 Comment
  SJSU15799  Polypogon interruptus Toni Corelli 2010-6-4 679 San Mateo Cowell Ranch Beach 33 Comment
  UC203508  Polypogon interruptus A. D. E. Elmer July, 1903 4694 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC237348  Polypogon monspeliensis L. R. Abrams; I. L. Wiggins 1939-6-3 432 San Mateo Ano Nuevo Point Comment
  JROH5453  Polypogon monspeliensis John Hunter Thomas 1983-5-23 22240 San Mateo Jasper Ridge Biological Preserve, Stanford University. Roadside drainage near shack side & low-flow crossing. Comment
  JROH5608  Polypogon monspeliensis John Rawlings 2013-5-28 1210 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small drainage west of Goya Gate. 177 Comment
  UC1100375  Polypogon monspeliensis Malcolm A. Nobs and S. Galen Smith 1949-8-26 1609 San Mateo about 1 mi s Pigeon Point; s of Pigeon Point Comment
  UC1100376  Polypogon monspeliensis Malcolm A. Nobs and S. Galen Smith 1949-8-26 1592 San Mateo marshes mouth of Pescadero Creek Comment
  HSC10835  Polypogon monspeliensis B. Francis 1964-5-5 47 San Mateo 5 miles N of San Francisco International Airport. Comment
Read comments
Jul 2 2009
  SEINET10593598  Polypogon monspeliensis Delzie Demaree 1932-5-22 Demaree 9167 San Mateo Mud Lakes Los Francos Woods. Mud Lakes Comment
  CAS-BOT-BC237588  Polypogon viridis George Oberlander 1950-6-3 1028 San Mateo San Francisco Watershed Reserve. Upper Crystal Spring Lake Comment
  JROH4819  Polypogon viridis John Hunter Thomas 1982-11-6 21207 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake. Comment
  JROH4822  Polypogon viridis John Rawlings 2011-8-2 1081 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bed of San Francisquito Creek near Dennis Martin site. 71 Comment
  RSA100973  Polypogon viridis G. Oberlander 1949-7-10 243 San Mateo Marsh, Upper Crystal Springs Lake, San Francisco. Watershed Reserve Comment
  CAS-BOT-BC72152  Polystichum californicum Ynez Henderson 1920-5-1 s.n. San Mateo Las Trancos Creek Comment
  CAS-BOT-BC76611  Polystichum munitum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Quarry 3 Comment
  CAS-BOT-BC105563  Populus trichocarpa Eric Walther 1919-2-23 s.n. San Mateo Woodside Comment
  JROH3841  Populus trichocarpa John H. Thomas 1976-4-30 18099 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Dam. Comment
  POM223174  Populus trichocarpa S. S. Berry 1909-2-27 s.n. San Mateo Near Los Francos Creek. 46 Comment
  RSA195521  Populus trichocarpa John H. Thomas 1966-4-13 11557 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  UC1174501  Populus trichocarpa W. R. Dudley 1902-9-21 San Mateo on Whipple Road s Crystal Springs Lake (and w of Serpentine); Santa Cruz Peninsula, s of Crystal Springs Lake Comment
  UCSB18690  Populus trichocarpa Schulte, John 1963-4-9 San Mateo 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 121 Comment
  JROH3361  Portulaca oleracea John Hunter Thomas 1985-8-7 23708 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10501698  Potamogeton filiformis var. macounii Mary Susan Taylor 1978-8-30 Taylor 1875 San Mateo Comment
  CAS-BOT-BC257679  Potamogeton illinoensis Peter Rubtzoff 1965-10-19 5664 San Mateo Pilarcitos 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-BC453999  Potamogeton pectinatus M. S. Taylor; E. Pierce 1978-7-31 1875 San Mateo Ano Nuevo State Reserve, between Hwy 1 and the Pacific Ocean, n of Santa Cruz. Comment
  CAS-BOT-BC454004  Potamogeton pectinatus W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Menlo Park Reservoir Comment
  CAS-BOT-BC454007  Potamogeton pectinatus W. R. Dudley 1903-7-21 s.n. San Mateo Near Hallidie's, Portola 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-BC401044  Potentilla L. Sigal 1970-5-1 s.n. San Mateo Pescadero Marsh Comment
  CAS-BOT-BC141931  Potentilla anserina subsp. pacifica George Oberlander 1950-5-6 925 San Mateo Below San Andreas Dam - San Francisco Watershed Reserve Comment
  CAS-BOT-BC141933  Potentilla anserina subsp. pacifica David D. Keck 1933-5-11 2291 San Mateo Half Moon Bay, ca. 2 miles north of town. Comment
  JROH4667  Prosartes hookeri W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4676  Prosartes hookeri John Hunter Thomas 1985-4-25 23567 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4671  Prosartes hookeri John H. Thomas 1969-4-20 14900 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area below dam Comment
  CAS-BOT-BC517388  Prosartes smithii E. W. Rust 1887-4-27 133 San Mateo Kings 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
  UC1124441  Prunella vulgaris var. lanceolata N. K. Carlson 1935-6-28 97 San Mateo 1 mi e Pigeon Pt.; Santa Cruz Quad. Comment
  CAS-BOT-BC158173  Prunus emarginata Peter H. Raven 1950-4-16 1810 San Mateo Above [Visitation] Visitacion Valley, San Bruno Mts. 182 Comment
  CAS-BOT-BC389746  Prunus ilicifolia M. Danielson 1966-10-1 s.n. San Mateo On old road above and south of Crystal Springs Rd. Comment
  UC12763  Prunus ilicifolia J. Burtt Davy 1893-6-17 San Mateo Belmont Comment
  UCSC007421  Pseudognaphalium Randall Morgan 2010-5-29 5039 San Mateo Rockaway Beach Comment
  HSC5682  Pseudognaphalium beneolens L. S. Rose 1966-8-15 66082 San Mateo Emerald Lake, W of Redwood City 91 Comment
  JROH772  Pseudognaphalium beneolens John H. Thomas 1964-11-29 10537 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville dam Comment
  JROH758  Pseudognaphalium californicum John H. Thomas 1971-5-30 15971 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC356852  Pseudognaphalium californicum R. E. Frenkel 1964-4-2 414 San Mateo On Spring Valley Ridge Road, SFWD, at junction of Spring Valley Ridge Road and Whiting Ridge Road 347 Comment
  CAS-BOT-BC357118  Pseudognaphalium luteoalbum John H. Thomas 1976-10-7 18396 San Mateo Along coast highway #1, 0.6 mile north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south of Pescadero 30 Comment
  CAS-BOT-BC357124  Pseudognaphalium luteoalbum Fred Hemphill 1973-4-22 841 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  POM358830  Pseudognaphalium luteoalbum E. A. Purer 1933-8-13 5427 San Mateo Belmont Comment
  CAS-BOT-BC357127  Pseudognaphalium luteoalbum Philip Wheeler 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon 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
  SDSU3737  Pseudognaphalium microcephalum D. F. Howe 1964-8-13 3958 San Mateo Near ocean on #1; near San Francisco Co. line. Comment
  CAS-BOT-BC361562  Pseudognaphalium stramineum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  OBI4193  Pseudognaphalium stramineum Lewis S. Rose 1966-8-6 66079 San Mateo San Bruno Mtn, Colma Cyn 122 Comment
  CAS-BOT-BC361560  Pseudognaphalium stramineum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Quarry 3 Comment
  UCSC007772  Pseudognaphalium stramineum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC85905  Pseudotsuga menziesii Josephine D. Randall 1906-3-9 275 San Mateo Santa Cruz Peninsula, King's Mt. Comment
  CAS-BOT-BC85913  Pseudotsuga menziesii J. I. McMurphy 1906-3-9 47 San Mateo Santa Cruz Peninsula, Santa Cruz Mts., King's Mt. 640 Comment
  POM223619  Pseudotsuga menziesii S. S. Berry 1909-3-13 s.n. San Mateo King s Mountain. 640 Comment
  JROH128  Pseudotsuga menziesii var. menziesii John Hunter Thomas 1983-4-28 21776 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG28043  Psilocarphus tenellus L. S. Rose 1933-5-3 33140 San Mateo Montara Comment
  UC517982  Psilocarphus tenellus Lewis S. Rose 1933-5-3 33140 San Mateo Montara Comment
  CAS-BOT-BC362016  Psilocarphus tenellus W. R. Dudley 1899-4-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Field near San Francisquito Creek, Stanford University Comment
  CAS-BOT-BC362020  Psilocarphus tenellus Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  CAS-BOT-BC72654  Pteridium aquilinum John H. Thomas 1961-5-7 9253 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC72656  Pteridium aquilinum Elizabeth McClintock 1965-3-28 s.n. San Mateo North Power Line Ridge Comment
  SEINET3086525 Image available Pterostegia drymarioides C. W. Sharsmith 1947-4-13 6756 San Mateo Pescadero Beach near Pescadero Point. 50 Comment
  UCD92957  Puccinellia maritima August L. Hormay 1932-5-29 s.n. San Mateo San Bruno. Comment
  CAS-BOT-BC308932  Pyrrocoma E. A. McGregor 1906-9-29 s.n. San Mateo Cooley Landing Comment
  CAS-BOT-BC105390  Quercus Ned Cahill 1974-4-23 158 San Mateo near the inteersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UCD45030  Quercus agrifolia J. M. Tucker 1946-3-2 1373 San Mateo Tree on a hillside, associated with Q. wislizenii; about 4 miles east of Pescadero, San Mateo County, California. 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
  JROH2461  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-25 15790 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2464  Quercus agrifolia var. agrifolia John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5809  Quercus berberidifolia John Rawlings 2016-7-27 1910 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 15, 15 yards north of Rd F 175 Comment
  CAS-BOT-BC62304  Quercus chrysolepis Phillip C. Wheeler 1965-5-25 s.n. San Mateo San Bruno Mountain, Buckeye Canyon Comment
  CAS-BOT-BC62306  Quercus chrysolepis William R. Dudley 1893-1-1 s.n. San Mateo Near Searsville (Bear G. Road) [Bear Gulch Road - San Mateo Co.?] Comment
  UCD45583  Quercus chrysolepis John M. Tucker 1941-4-6 209 San Mateo On ridge north of Finny Creek, directly inland from Ano Nuevo Pt., San Mateo County, California. Comment
  RSA13734  Quercus durata Annetta Carter 1934-10-13 728 San Mateo Long Branch of Isabel Creek, half mile above jct with Isabel Creek, Mt Hamilton Range. 549 Comment
  UCD20292  Quercus durata Paul Heiple 2002-5-18 s.n. San Mateo Edgewood Park near Redwood City. 191 Comment
  SEINET13953377 Image available Quercus durata Lewis S. Rose 1964-1 64068 San Mateo W. of Redwood City; alt. ca. 800 ft. 244 Comment
  JROH2483  Quercus durata var. durata John H. Thomas 1970-4-28 15608 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG39513  Quercus durata var. durata L. S. Rose 1970-7-21 San Mateo Emerald Lake, W of Redwood City 243 Comment
  JROH5942  Quercus kelloggii John Rawlings, Sara Timby 2017-3-3 1964 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 96 Comment
  POM270206  Quercus kelloggii Lyman Benson 1932-8-1 4034 San Mateo Stanford University, Santa Cruz mountain range, Corte Madera Creek watershed. 122 Comment
  RSA152240  Quercus kelloggii I. L. Wiggins 1925-04 1664 San Mateo On Kings Mtn Rd 3/4 mile above Woodside. 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
  UCSB34854  Quercus lobata Gropp, K. 1959-4-8 San Mateo 2 Frederick Court, Menlo Park, front yard Comment
  CAS-BOT-BC134790  Quercus wislizeni Walter Knight; Irja Knight 1965-5-9 1104 San Mateo San Bruno Mountain. From Ridge Road about 100 yds E of parking lot along N roadside 381 Comment
  CAS-BOT-BC134792  Quercus wislizeni J. H. Thomas 1949-11-5 1227 San Mateo Near airstrip along Butano Fire Break 518 Comment
  JROH2529  Quercus wislizeni var. frutescens Toni Corelli 2007-1-31 337 b San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 9 140 Comment
  POM270261  Quercus wislizeni var. wislizeni Lyman Benson 1932-8-1 4028 San Mateo Stanford University, Santa Cruz Mt. Range, Corte Madera Creek watershed. 122 Comment
  RSA18093  Quercus wislizeni var. wislizeni Carl B. Wolf 1929-4-24 3655 San Mateo south west end of Jasper Ridge, near Searsville Lake Comment
  POM290129  Rafinesquia californica Lyman Benson 1937-6-27 8391 San Mateo Summit west of Belmont; Santa Cruz Mt. Range; S. F. Bay Watershed. 152 Comment
  UC9380  Ranunculus aquatilis var. capillaceus J. Burtt Davy Jun 21 1893-Jun 23 1893 1130 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC379084  Ranunculus aquatilis var. diffusus Carl B. Wolf 1929-4-29 3664 San Mateo in small reservoir 1 mi south of Portola Comment
  SEINET209201  Ranunculus bloomeri Inez Smith 1915-3-15 San Mateo Hillsboro Comment
  UC511335  Ranunculus californicus Lyman Benson 1931-3-15 2642 San Mateo Emerald Lake San Francisco Bay Watershed, Santa Cruz Mt. Range, Redwood C 152 Comment
  JROH3469  Ranunculus californicus Duncan M. Porter 1960-4-9 620 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of NE facing slope above Webb Ranch Comment
  POM268416  Ranunculus californicus Lyman Benson 1930-4-6 s.n. San Mateo San Lorenzo Mt: Crystal Springs Lake. 183 Comment
  RSA15247  Ranunculus californicus Carl B. Wolf 1927-2-19 208 San Mateo Spring Valley, on Belmont to Halfmoon Bay road Comment
  CAS-BOT-BC378544  Ranunculus californicus var. californicus John H. Thomas 1969-4-30 15032 San Mateo serpentine near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  CAS-BOT-BC378545  Ranunculus californicus var. californicus Elizabeth McClintock; David Schooly; Marcus 1975-4-13 s.n. San Mateo grassy slope above Hillside Blvd., South San Francisco Comment
  RSA132486  Ranunculus californicus var. cuneatus John H. Thomas 1950-3-19 1307 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
  JROH3485  Ranunculus hebecarpus John Hunter Thomas 1983-4-21 21638 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC83428  Ranunculus lobbii A. D. E. Elmer 1903-4-1 4734 San Mateo Alpine School House. Comment
  RSA119758  Ranunculus lobbii James I. McMurphy 1904-1 s.n. San Mateo Coal Mine Road Comment
  UC827645  Ranunculus orthorhynchus var. bloomeri Lewis S. Rose 1937-4-30 37241 San Mateo Brisbane 6 Comment
  UC13950  Ranunculus orthorhynchus var. bloomeri Alice Eastwood Feb. 1896 San Mateo Comment
  UCR49681  Ranunculus pusillus W. R. Dudley 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. On road between Woodside and Byrme's Store 119 Comment
  SD234165  Ranunculus repens Claude Bonang 1958-5-3 29 San Mateo Found in lawn in front of Jordan Hall, 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
  CAS-BOT-BC74341  Raphanus sativus Javier Penalosa 1963-2-23 2663 San Mateo San Bruno Mountain. Ravine south of Crocker Avenue. 213 Comment
  UCD115178  Raphanus sativus W. A. Harvey; J. M. Tucker 1948-6-28 1698 San Mateo 3 miles north of Pescadero. Comment
  SJSU1605  Rhamnus alaternus C. D. Duncan 1955-2-17 San Mateo residence, Menlo Park Comment
  POM136515  Rhamnus californica A. D. E. Elmer 1903-07 4772 San Mateo Pilarcitos Stone Dam. Comment
  UC1071558  Rhamnus californica T. Tyrrell 1928-9-26 9 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 91 Comment
  CAS-BOT-BC55888  Rhamnus crocea Margaret A. Barry 1938-4-21 238 San Mateo North slope on Coal Mine Ridge Comment
  JROH3561  Rhamnus crocea John H. Thomas 1964-4-19 10311 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry open slope below dam Comment
  JROH3564  Rhamnus crocea John H. Thomas 1977-4-28 18566 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3566  Rhamnus crocea John Hunter Thomas 1981-4-27 20503 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC56665  Rhododendron occidentale William R. Dudley 1895-6-6 s.n. San Mateo Pescadero Cr. (near Iverson's) Comment
  CAS-BOT-BC56669  Rhododendron occidentale W. R. Dudley 1908-9-21 s.n. San Mateo Pescadero Cr. (Iversons') Comment
  UC306552  Rhododendron occidentale A. D. E. Elmer 1903-6-1 4298 San Mateo Butano Creek Comment
  CAS-BOT-BC56670  Rhododendron occidentale Roxana S. Ferris 1920-5-2 2003 San Mateo near Bonny Doon 457 Comment
  POM132207  Rhododendron occidentale var. occidentale A. D. E. Elmer 1903-06 4298 San Mateo Butano Creek Comment
  CAS-BOT-BC92493  Ribes aureum var. gracillimum Adoph Holme 1929-4-1 s.n. San Mateo Berenda Farm near Redwood City. Comment
  UCR2941  Ribes aureum var. gracillimum Wm. Horn Jr. 1963-4-9 620409- 02 San Mateo San Francisco Bay region, Hillsborough, 2240 Redington Rd. 30 Comment
  JEPS49318  Ribes californicum W. L. Jepson 1922-3-19 9543 San Mateo Lake San Andreas 182 Comment
  RSA101029  Ribes californicum G. Oberlander 1950-3-18 527 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  UC518033  Ribes californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont Comment
  CAS-BOT-BC93004  Ribes californicum var. californicum A. D. E. Elmer 1903-3-1 4683 San Mateo Portola. Comment
  JROH2648  Ribes californicum var. californicum John Hunter Thomas 1983-2-21 21280 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate Comment
  CAS-BOT-BC173090  Ribes divaricatum var. pubiflorum W. R. Dudley 1895-2-23 s.n. San Mateo Above last bridge on San Francisquito Cr. near Stanford University Comment
  CAS-BOT-BC173092  Ribes divaricatum var. pubiflorum Roxana S. Ferris 1920-4-24 1956 San Mateo Peters Creek, 2 mi above ridge 304 Comment
  POM141973  Ribes malvaceum A. D. E. Elmer 1903-03 4750 San Mateo Portola Comment
  SEINET3558789 Image available Ribes malvaceum Lewis S. Rose 1933-3-2 33006 San Mateo Belmont. Comment
  SJSU279  Ribes malvaceum H. W. Marion 1936-3-8 San Mateo 0.25 mi E of Searsville L, near Stanford Univ Comment
  CAS-BOT-BC212811  Ribes menziesii David D. Keck 1932-3-6 1397 San Mateo Near La Honda, Santa Cruz Mts. 200 Comment
  CAS-BOT-BC212813  Ribes menziesii W. R. Dudley 1898-4-15 s.n. San Mateo Unspecified Comment
  SEINET10482931  Ribes menziesii Mary Susan Taylor 1978-8-30 Taylor 1855 San Mateo Comment
  JROH2672  Ribes menziesii var. menziesii Toni Corelli 2002-8-19 248 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 1. 82 Comment
  CAS-BOT-BC144606  Ribes sanguineum var. glutinosum Elmer I. Applegate 1895-3-3 198 San Mateo San Gregorio Creek below La Honda Comment
  CAS-BOT-BC144650  Ribes sanguineum var. glutinosum Ray H. Yanis 1951-4-21 53 San Mateo Searsville Lake edge 15 Comment
  JROH2680  Ribes sanguineum var. glutinosum John Hunter Thomas 1981-4-5 20274 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  CAS-BOT-BC144639  Ribes sanguineum var. glutinosum Walter Knight 1964-9-14 828 San Mateo near summit Peak Mt. Comment
  RSA0019103  Ribes sanguineum var. glutinosum I. L. Wiggins 1929-3-23 3371 San Mateo Road to Mud Lake, near Stanford University Comment
  RSA0019112  Ribes sanguineum var. glutinosum Carl B. Wolf 1927-2-19 215 San Mateo On north road to King s Mountain. Comment
  CAS-BOT-BC363091  Rigiopappus leptocladus John H. Thomas 1961-5-14 9382 San Mateo Just north of dam on San Mateo Creek 121 Comment
  JROH1210  Rigiopappus leptocladus John Hunter Thomas 1992-4-29 25169 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC363093  Rigiopappus leptocladus Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  POM204034  Rigiopappus leptocladus L. S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
  UC107585  Romanzoffia californica Kellogg 1869-3-16 San Mateo San Bruno Comment
  JEPS125913  Romulea rosea var. australis Dean W. Taylor 2002-3-20 17952 San Mateo Franklin Point, along path to the coastal bluff from the parking area on Hwy 1. Comment
  JROH1578  Rorippa palustris subsp. palustris James McMurphy 1906-8-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  RSA3085  Rosa californica Carl B. Wolf 1931-8-20 2327 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp. 91 Comment
  SEINET11917917  Rosa californica J. C. McMurphy 1906-1 64 &35 San Mateo Santa Cruz Mts & Palo Alto Comment
  CAS-BOT-BC146691  Rosa gymnocarpa Walter Knight; Irja Knight 1964-5-30 601 San Mateo Colma Canyon Comment
  CAS-BOT-BC146693  Rosa gymnocarpa James B. Roof 1965-4-25 s.n. San Mateo Head of Owl's Canyon on ridge Comment
  CAS-BOT-BC146701  Rosa gymnocarpa John H. Thomas 1961-5-7 9284 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH3763  Rosa gymnocarpa var. gymnocarpa John Hunter Thomas 1989-5-11 24738 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC148213  Rosa spithamea V. F. Hesse 1953-8-22 1189 San Mateo Near China Grade 762 Comment
  POM222901  Rubus parviflorus var. velutinus S. S. Berry 1909-4-2 s.n. San Mateo Bear Creek Canyon Grade 244 Comment
  RSA18500  Rubus parviflorus var. velutinus Carl B. Wolf 1927-7-14 620 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  HSC19689  Rubus spectabilis P. A. Murphy 1965-4-15 12 San Mateo 3 mi. from Half Moon Bay on Higgin's Canyon Rd. Comment
  SJSU10442  Rubus spectabilis C. R. Schafer 1967-5-7 San Mateo Gazos Cr, Gazos Cr Rd, Big Basin State Park Comment
Read comments
Dec 7 2010
  CAS-BOT-BC157081  Rubus ursinus L. R. Abrams 1914-10-14 5135 San Mateo Tunitas Comment
  CAS-BOT-BC157083  Rubus ursinus A. D. E. Elmer 1903-6-1 4664 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC157092  Rubus ursinus A. D. E. Elmer 1903-5-1 4788 San Mateo Spanishtown Comment
  CAS-BOT-BC157105  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CAS-BOT-BC157107  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
  JROH3781  Rubus ursinus John Hunter Thomas 1982-5-18 20946 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Searsville Lake near bridge Comment
  POM261520  Rubus ursinus Alice Eastwood, John T. Howell 1938-6-26 6055 San Mateo Near Pescadero. Comment
  RSA15290  Rubus ursinus Carl B. Wolf 1927-4-3 258 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  UC861859  Rubus ursinus R. A. Kocher 1908-4-25 San Mateo near Stanford University (San Francisquito Creek above Rock Quarry); Santa Cruz Mountain Peninsula, San Francisquito Creek 121 Comment
  RSA89757  Rubus ursinus Philip A. Munz 1954-8-4 19913 San Mateo Montara. Comment
  CAS-BOT-BC422080  Rumex acetosella John H. Thomas 1958-3-19 7064 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 91 Comment
  CHSC39822  Rumex acetosella Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  CAS-BOT-BC422078  Rumex acetosella Elsie Zeile 1911-3-30 s.n. San Mateo S. San Francisco Comment
  CAS-BOT-BC422079  Rumex acetosella Daniel Cohen 1953-5-9 85 San Mateo La Honda Road near Skyline Drive. Comment
  CAS-BOT-BC422091  Rumex acetosella Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Slope above Hillside Blvd., South San Francisco. Comment
  CAS-BOT-BC422093  Rumex acetosella Louis F. Pitelka 1973-6-16 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco. Comment
  CAS-BOT-BC433366  Rumex crispus Margaret Barry 1938-5-14 257 San Mateo Near Mud Lakes, Coal Mine Ridge Comment
  JROH5664  Rumex obtusifolius John Rawlings 2014-6-17 1272 San Mateo Jasper Ridge Biological Preserve, Stanford University; near intersection of Trail 1 and Trail "a" at the small seasonal drainage that crosses Trail 1. 87 Comment
  CAS-BOT-BC433818  Rumex pulcher Ned Cahill 1974-6-21 337 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC433824  Rumex pulcher Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Guadalupe Road Comment
  JROH2219  Rupertia physodes John Hunter Thomas 1980-5-6 19922 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3837363  Ruppia maritima Unknown 1946-4-30 s.n. San Mateo .5 mile north of Redwood City Comment
  CAS-BOT-BC539284  Rytidosperma caespitosum John Rawlings; Ken Hickman 2015-6-8 1576 San Mateo Caltrans right-of-way above Hwy 92 E of Hwy 280, downslope from San Francisco Watershed fenceline 118 Comment
  CDA38781  Rytidosperma caespitosum Eric Wrubel 2012-6-19 NPS 41 San Mateo Golden Gate National Recreation Area; Sweeney Ridge, Baquiano Trail. 0 Comment
  JROH1713  Sagina apetala John H. Thomas 1963-4-17 10036 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of road near the "riders shack" at the Searsville end of the ridge Comment
  SJSU15421  Sagina procumbens Toni Corelli 2011-8-25 709 San Mateo Ano Nuevo State Park, Cove Beach 7 Comment
  CDA15512  Sagina procumbens N. Mulder 1999-4-29 PDR 1244753 San Mateo D & M Nursery, Cloverdale Rd., Pescadero. 0 Comment
  CAS-BOT-BC103336  Salix bonplandiana W. R. Dudley 1904-4-7 s.n. San Mateo Above Judge Allen's near Portola Comment
  RSA185023  Salix exigua L. S. Rose 1965-3-8 65003 San Mateo Searsville Lake. 122 Comment
  JROH3844  Salix exigua var. hindsiana H. J. Dengler 1972-4-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along levee road, south end of Searsville Lake Comment
  JROH3852  Salix exigua var. hindsiana John Hunter Thomas 1988-6-2 24495 San Mateo Jasper Ridge Biological Preserve, Stanford University. Beach area, now much overgrown. Comment
  CAS-BOT-BC104050  Salix hindsiana Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 121 Comment
  OBI9815  Salix lasiandra Lewis S. Rose 1965-3-8 65002 San Mateo Searsville Lake 122 Comment
  UC492372  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1932-7-4 640 San Mateo 4/10 mi e. Pescadero (Butano Creek Rd.) Comment
  JROH3869  Salix lasiandra var. lasiandra John H. Thomas 1967-3-26 12415 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA788838  Salix lasiolepis Peter Rubtzoff 1976-3-14 8446 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  UCD164611  Salix lasiolepis Peter Rubtzoff 1975-10-24 8433 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
  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
  POM281343  Salix lasiolepis Lyman D. Benson 1931-1-25 2577 San Mateo Near the Skyline Blvd. 5 miles S of La Honda Grade. 366 Comment
  UC846970  Salix scouleriana Lewis S. Rose 1938-10-16 38303 San Mateo Skyline Blvd. and La Honda Rd. Comment
  CAS-BOT-BC126486  Salix sitchensis Walter Knight; Irja Knight 1965-2-28 866 San Mateo San Bruno Mt., in Colma Canyon Comment
  CAS-BOT-BC126509  Salix sitchensis W. R. Dudley 1900-3-16 s.n. San Mateo Near Summit Spring, Kings Mt. Comment
  CAS-BOT-BC126518  Salix sitchensis George Oberlander 1950-3-11 820 San Mateo San Mateo Creek Comment
  UC75015  Salix sitchensis unknown 1902-3 San Mateo King's Mt. Comment
  UCD99302  Salsola soda William Anderson 1968-8-16 s.n. San Mateo west end of Dumbarton Bridge. Comment
  RSA681668  Salvia sonomensis Annuschka Deb 1989-4-14 108 San Mateo YBN Demonstration Garden, Woodside, CA Comment
  UC1327249  Salvia spathacea John T. Doyen 1966-3-28 32 San Mateo San Bruno Mountains; near Radio Towers at top Comment
  RSA120030  Sambucus callicarpa W. R. Dudley 1950-3-16 s.n. San Mateo Near bridge over Pilancitas Creek, on road to Half-Moon Bay Comment
  CAS-BOT-BC246016  Sambucus nigra subsp. caerulea Paul Arnaud 1941-4-19 s.n. San Mateo Whipple Road, Redwood City Comment
  HSC23950  Sambucus nigra subsp. caerulea Mary Katherine Wicksten 1971-6-17 23 San Mateo Huddart Park, along Rd. near Redwood Shelter. Comment
  JROH1671  Sambucus nigra subsp. caerulea John H. Thomas 1973-6-15 16853 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1676  Sambucus nigra subsp. caerulea John Hunter Thomas 1989-5-9 24724 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI4270  Sambucus nigra subsp. caerulea Lewis S. Rose 1966-8-15 66084 San Mateo Pulgas Water Temple 91 Comment
  CAS-BOT-BC236456  Sambucus racemosa subsp. racemosa W. R. Dudley 1900-3-16 s.n. San Mateo Ner bridge over Pilarcitos Creek, road to Halfmoon Bay, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC257332  Sambucus racemosa var. racemosa Peter Rubtzoff 1988-6-9 9925 San Mateo San Bruno Mountains, upper part of East Fork Colma Creek Canyon. Comment
  IRVC28133  Sambucus racemosa var. racemosa G. K. Helmkamp, E. A. Helmkamp 2001-6-2 6783 San Mateo Purissima Crk Rd, E of Half Moon Bay at Purissima Crk, 3.2 mi E of CA-1. Central CA coast 244 Comment
  SBBG43415  Sambucus racemosa var. racemosa C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 1.4 mi E of Hwy 1 30 Comment
  OBI8785  Sanicula arctopoides Lewis S. Rose 1961-4-5 61030 San Mateo San Bruno Mts. 366 Comment
  JROH318  Sanicula bipinnata Carol Zabel 1990-3-30 39 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11, curve downhill from intersection with Trail 10, above Chinese houses Comment
  POM288029  Sanicula bipinnatifida Lyman Benson 1931-3-15 2637 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 549 Comment
  RSA15309  Sanicula bipinnatifida C. B. Wolf 1927-4-3 279 San Mateo 1 1/2 miles above east base of La Honda grade, Santa Cruz Mountains. Comment
  JROH343  Sanicula crassicaulis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164334  Sanicula crassicaulis Peter Rubtzoff 1976-6-30 8712 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC8637  Sanicula serpentina Adolph Daniel Edward Elmer 1903-4-1 4498 San Mateo Portola Comment
  JROH347  Sanicula tuberosa H. J. Dengler 1964-3-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in the center of the westernmost enclosure, above the old trail to S.F. Creek Comment
  RSA218024  Satureja douglasii Walter Knight, Elizabeth McClintock, I. Knight 1963-9-2 s.n. San Mateo San Bruno Mountains; Power Line Ridge. Comment
  RSA445298  Satureja douglasii E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel. Comment
  RSA8352  Satureja douglasii L. S. Rose 1933-6-9 s.n. San Mateo 3 miles W of San Bruno. Comment
  CAS-BOT-BC283131  Schedonorus arundinaceus John Thomas Howell 1955-5-25 30354 San Mateo Skyline Blvd. causeway, Crystal Springs Lake Comment
  RSA790262  Schedonorus arundinaceus Peter Rubtzoff 1976-6-13 8633 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and NW of Fog Forest. Comment
  CAS-BOT-BC283133  Schedonorus arundinaceus Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo On the south side of Crocker Industrial Park, San Bruno Mountains 22 Comment
  JROH4419  Schoenoplectus acutus var. occidentalis John Hunter Thomas 1989-5-23 24748 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing. Comment
  CAS-BOT-BC111606  Schoenoplectus californicus Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo In disturbed seep 600 ft SE of the Carter/Martin intersection, Daly City 7 Comment
  POM185335  Schoenoplectus pungens E. B. Copeland 1903-6-15 3336 San Mateo Montara Point. Comment
  UC1853  Scirpus cernuus J. Burtt Davy 1893-6-17 San Mateo Belmont Belmont (meadow back of Salt Marsh) Comment
  CDA19091  Scirpus maritimus J. Beall 2001-4-24 PDR 064435 San Mateo Belmont Creek at Old Country Rd., Belmont. 0 Comment
  CAS-BOT-BC111061  Scirpus microcarpus Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-25 1559 San Mateo Marshes at Sharp Park. Comment
  CDA39140  Scirpus microcarpus I. J. Campbell 1959-4-16 s.n. San Mateo Quadro Ranch, Pescadero. 0 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
  UC1100802  Scirpus pungens Herbert L. Mason 1949-7-7 14025 San Mateo mouth Gazos Creek (near ocean, s San Mateo Co.) Comment
  UC765856  Scoliopus bigelovii R. F. Hoover 1939-3-3 3897 San Mateo above Portola (on La Honda rd.) Comment
  UC844165  Scoliopus bigelovii Mrs. H. R. Ebright March 1922 San Mateo Lake Pilarcitos Comment
  RSA0028841  Scoliopus bigelovii D. D. Keck 1932-2-12 1359 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 305 Comment
  SEINET5570939  Scoliopus bigelovii H. S. Gentry 1931-1 20 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  SEINET13694890 Image available Scolymus hispanicus T. C. Fuller 1965-7-8 s.n. San Mateo D. McBryde prop., 140 Eleanor Dr., Woodside Comment
  UCSC007779  Scrophularia californica Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  RSA427185  Scrophularia californica subsp. floribunda Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  RSA427186  Scrophularia californica subsp. floribunda E. S. Spalding 1923-8-3 s.n. San Mateo 3 miles W of Redwood City, near Pulgas Tunnel. Comment
  CAS-BOT-BC376418  Scrophulariaceae Greg de Nevers 2001-9-26 12630 San Mateo Palo Alto. Comment
  JROH2883  Scutellaria tuberosa Hester R. Davis 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC240067  Secale cereale Walter Knight; Irja Knight 1965-4-24 1038 San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC59051  Sedum spathulifolium Phillip C. Wheeler 1965-7-8 s.n. San Mateo Canyon adjacent to quarry, San Bruno Mountain Comment
  JROH1221  Senecio aronicoides D. E. Breedlove 1971-5-31 19356 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC363396  Senecio aronicoides Le Roy Abrams 1901-5-11 1612 San Mateo Colma Comment
  CAS-BOT-BC365647  Senecio elegans Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. East end of Colma Canyon Comment
  JROH686  Senecio minimus Toni Corelli 2006-9-20 329 a San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 12 along Corta Madera Creek 106 Comment
  CAS-BOT-BC364635  Senecio vulgaris Fred Hemphill 1973-3-17 617 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC364637  Senecio vulgaris John H. Thomas 1963-5-20 10146 A San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  JROH1224  Senecio vulgaris John H. Thomas 1968-3-17 14188 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC80290  Sequoia sempervirens Ira L. Wiggins 1925-4-1 1659 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  NY64522  Sequoia sempervirens E. G. Dudley 1904-1-21 74 San Mateo Cañada de Raymundo, Santa Cruz Mountains 274.3 Comment
  NY64526  Sequoia sempervirens C. F. Baker 1902-1-15 319 San Mateo West side of King's Mountain Comment
  UC813084  Sequoia sempervirens E. W. Rust 1908-3-28 154 San Mateo vicinity of Stanford University (King's Mountain Road, Redwood formation) 609 Comment
Read comments
Sep 22 2011
  JROH5894  Sequoia sempervirens M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood grove, San Francisquito Creek Comment
  SEINET11737927  Sequoia sempervirens E. L. Dudley 1904-1 74 San Mateo Canada de Raymundo, Santa Cruz Mts, Santa Cruz peninsula 274 Comment
  CDA2436  Setaria parviflora E. L. Labadie 1958-7-8 833 -58 San Mateo Redwood City. 0 Comment
  JROH3829  Sherardia arvensis John H. Thomas 1957-4-16 6661 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  JROH3833  Sherardia arvensis John H. Thomas 1974-4-4 17077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA295088  Sherardia arvensis Robert A. Norris 1981-4-7 4124 San Mateo Near small paved road. Vista Point near Interstate Hwy 280. Ca 1.5 miles SE of jct with State Hwy 92. Comment
  SBBG30044  Sidalcea diploscypha L. S. Rose 1935-6-9 San Mateo Emerald Lake, W of Redwood City Comment
  SD39294  Sidalcea diploscypha McCallum 1933-5-30 3706 San Mateo Spring Valley Comment
  UCD116582  Sidalcea hickmanii subsp. viridis S. Seiki 1998-5-2 2 San Mateo city of Pacifica, Montara Mountain, approximately 2.3 miles from San Pedro Valley along Devil's Slide heading west. Specimen found along trail about 0.25 mile in from the entrance to the trail. Comment
  POM203640  Sidalcea malviflora subsp. malviflora J. T. Howell 1933-4-9 10975 San Mateo 2 miles N. of Pigeon Pt. Comment
  POM214348  Sidalcea malviflora subsp. malviflora I. L. Wiggins 1931-2-21 5097 San Mateo Near Pescadero 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-BC386852  Silene gallica Walter Knight; Irja Knight 1965-3-28 976 San Mateo San Bruno Mountain. Flower Garden adjacent to April Brook. Comment
  JROH1732  Silene gallica John H. Thomas 1971-4-10 15757 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389893  Silene scouleri subsp. scouleri John H. Thomas 1961-5-7 9289 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC389891  Silene scouleri subsp. scouleri Phillip C. Wheeler 1965-6-21 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC364858  Silybum marianum W. R. Dudley 1893-6-8 s.n. San Mateo Santa Cruz Peninsula. Cedro Cottage, Stanford University Comment
  CAS-BOT-BC364859  Silybum marianum Ned Cahill 1974-7-14 356 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC74986  Sinapis arvensis Fred Hemphill 1973-4-8 604 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC74990  Sinapis arvensis Fred Hemphill 1973-5-6 767 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  POM273726A  Sisymbrium officinale Lyman Benson 1935-5-5 6533 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  CAS-BOT-BC75350  Sisymbrium officinale Reed C. Rollins 1941-2-23 2941 San Mateo Roadside, about 10 miles south of San Francisco. Comment
  UCR115979  Sisyrinchium bellum Tom Paradise 1993-5-3 14 San Mateo San Francisco Bay area, Woodside; Huddart County Park, along Kings Mountain Road, 3 - 4 mi east of Skyline Blvd. 116 Comment
  JROH4440  Sisyrinchium bellum John H. Thomas 1964-4-19 10322 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near Searsville end of ridge Comment
  RSA18327  Sisyrinchium californicum Carl B. Wolf 1929-5-10 3708 San Mateo Coast at Pigeon Pt. South of Pescadero. Comment
  UC13692  Sisyrinchium californicum Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  UC844167  Smilacina racemosa Lewis S. Rose 1941-3-12 41025 San Mateo Skyline Blvd. w San Bruno 152 Comment
  UC844176  Smilacina racemosa L. R. Abrams 1916-3-25 5585 San Mateo near Dam; Santa Cruz Mountain Peninsula, Searsville Ridge Comment
  UCSC007781  Solanum douglasii Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC154185  Solanum umbelliferum F. Hemphill 1973-4-15 688 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC58480  Solanum umbelliferum F. Hemphill 1973-3-17 616 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  POM226871  Solanum umbelliferum L. R. Abrams 1914-4-2 5073 San Mateo Woodside Comment
  UC26234  Solanum umbelliferum Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  UCD166154  Solanum umbelliferum Jack Major; M. Forde and S. Bamberg 1962-4-3 738 San Mateo San Mateo County :On ridge above Scott Creek. (Exact location unknown. Coordinates estimated by label maker). Comment
  CAS-BOT-BC157039  Solanum umbelliferum S. Kawahara 1968-7-29 464 San Mateo Side road off Old Stage Road at south bank of Pomponio Creek 36 Comment
  CAS-BOT-BC422310  Soleirolia soleirolii Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo San Bruno Mountain. Crocker Avenue Comment
  UCD136058  Solidago Collector Unknown 1925-6-15 1662 San Mateo Pescadero - Santa Cruz Road. Comment
  POM57020  Solidago californica C. F. Baker 1901-10-20 58 San Mateo Summit of Coast Range Comment
  POM183401  Solidago canadensis subsp. elongata L. S. Rose 1931-9-19 s.n. San Mateo Kings Mountain. Comment
  CAS-BOT-BC353471  Solidago elongata Peter Rubtzoff 1976-10-5 8909 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. Western part of the area, on slope near fence, San Bruno Mountains. Comment
  CAS-BOT-BC353473  Solidago elongata Peter Rubtzoff 1978-9-16 9271 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. Western part of the area, on slope near fence, San Bruno Mountains. Comment
  CAS-BOT-BC365534  Solidago elongata Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. East facing slope below parking lot Comment
  CAS-BOT-BC365535  Solidago elongata Walter Knight 1964-9-14 s.n. San Mateo Peak Mountain - Montara Range Comment
  CAS-BOT-BC365537  Solidago elongata J. H. Thomas 1959-8-16 8065 San Mateo About 2 miles SW of Pescadero 60 Comment
  SEINET11382904 Image available Solidago elongata Unknown 1931-1 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC365748  Solidago spathulata John H. Thomas 1961-5-12 9331 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC365749  Solidago spathulata John H. Thomas 1961-5-12 9331 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS29413  Solidago spathulata L. R. Heckard 1961-7-16 1260 San Mateo near summit San Bruno Mt. (ne-facing slope to the ne of transmitting station KQED) 304 Comment
  JEPS89408  Solidago spathulata Dean W. Taylor 1990-8-30 11535 San Mateo Santa Cruz Mountains, San Bruno Mountain, along the access road on the main ridge 50 feet to the e of locked gate at e end of parking lot near radio tower area San Bruno Mountain; Santa Cruz Mountains, San Bruno Mountain Comment
  HSC24021  Solidago velutina subsp. californica Mary Katherine Wicksten 1971-8-20 207 San Mateo Huddart Park; area by King's Mtn. Rd., above Miwok Area Comment
  JROH1235  Solidago velutina subsp. californica W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1237  Solidago velutina subsp. californica John Hunter Thomas 1990-7-28 24938 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC365926  Soliva sessilis John H. Thomas 1958-3-19 7062 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  JROH1249  Soliva sessilis John Hunter Thomas 1986-5-6 24017 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC909336  Soliva sessilis Ira L. Wiggins 1950-5-20 12352 San Mateo above Pescadero Beach Comment
  CAS-BOT-BC353415  Soliva sessilis Peter Rubtzoff 1977-4-14 8940 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. East Fork Colma Creek canyon area, San Bruno Mountains. Comment
  CAS-BOT-BC365934  Soliva sessilis Philip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. In Crocker Hills near Cow Palace Comment
  RSA130975  Soliva sessilis W. R. Dudley 1895-6-6 s.n. San Mateo Near Pescadero Creek. The Santa Cruz Peninsula. Comment
  CAS-BOT-BC374701  Sonchus oleraceus John H. Thomas 1963-5-20 10112 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC374703  Sonchus oleraceus Josephine D. Randall 1907-4-27 99 San Mateo Santa Cruz Peninsula. Kings Mt. 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
  RSA407381  Sparganium erectum subsp. stoloniferum Lyman Benson 1931-5-29 2811 San Mateo Santa Cruz Mt. range, Lake Searsville River. 244 Comment
  UC441312  Sparganium erectum subsp. stoloniferum Katharine Brandegee 1913-8-11 San Mateo Tobin 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
  CAS-BOT-BC236628  Spartina foliosa David D. Keck 1931-9-27 1270 San Mateo Dumbarton Bridge Comment
  CAS-BOT-BC236630  Spartina foliosa John Thomas Howell 1956-11-22 31962 San Mateo Near Main St. and Bayshore Highway, Redwood City Comment
  RSA23203  Spartina foliosa I. L. Wiggins 1938-11-25 9213 San Mateo Along Dumbarton Bridge approach Comment
  CAS-BOT-BC390202  Spergularia bocconi G. B. Rossbach; R. P. Rossbach 1939-5-12 726 San Mateo San Pedro Point Comment
  CAS-BOT-BC344921  Spergularia macrotheca Peter Rubtzoff; Jacob Sigg 1990-11-12 10245 San Mateo Sharp Park, south of Laguna Salada. Comment
  CAS-BOT-BC390458  Spergularia macrotheca var. macrotheca Robert Robertson 1954-5-1 115 San Mateo Bench at Pescadero Beach 9 Comment
  CAS-BOT-BC390459  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1937-10-1 615 San Mateo Near Burlingame Comment
  CAS-BOT-BC390921  Spergularia marina Javier Penalosa 1963-3-30 2768 San Mateo San Bruno Mountain. Guadalupe Valley 30 Comment
  CAS-BOT-BC390547  Spergularia media S. D. Halsey 1908-10-1 s.n. San Mateo Redwood City Comment
  JROH1753  Spergularia rubra John Rawlings 2012-1-6 1103 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd. F in chert-derived soils south of serpentine contact. Also observed nearby in Road F in serpentine 195 Comment
  CDA9322  Stachys ajugoides M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 867 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  CDA41030  Stachys albens Wm. Davis 1964-6-29 s.n. San Mateo Brown prop., San Bruno. 0 Comment
  JROH2902  Stachys bullata John Hunter Thomas 1979-6-12 19592 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  UCLA71370  Stachys bullata Herbert L. Mason 1927-4-24 3700 San Mateo mouth San Gregorio Creek Comment
  UCR122977  Stachys bullata George K. Helmkamp, E. A. Helmkamp 2001-6-2 6771 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  UCSC011282  Stachys bullata Unknown 1972-5-20 s.n. San Mateo Waddell Creek area Comment
  POM63420  Stachys chamissonis A. D. E. Elmer 1903-07 4760 San Mateo Pilarcitos Stone Dam. Comment
  SEINET10851465 Image available Stachys gracilenta A. Arthur Heller 1907-5-28 Heller 8574 San Mateo Above Crystal Springs on the Half Moon Bay road. Comment
  SEINET13948127 Image available Stachys rigida Lewis S. Rose 1950-1 50139 San Mateo Emerald Lake region, alt ca 800 ft. hills W of Redwood City 244 Comment
  UCSB16391  Stachys rigida Schulte, John 1963-4-13 San Mateo Jasper Ridge; 3 mi SW of Stanford Campus; betweeen Santa Clara Valley and main front of Santa Cruz Mountains 137 Comment
  CAS-BOT-BC164650  Stachys rigida subsp. quercetorum Peter Rubtzoff 1975-10-11 8425 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC394059  Stellaria media Josephine D. Randall 1908-2-16 s.n. San Mateo Corte de Madera Canon near Alpine Road; Santa Cruz Peninsula Comment
  JROH1791  Stellaria nitens John Hunter Thomas 1988-5-16 24462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC375210  Stephanomeria elata John Thomas Howell 1939-10-8 15369 San Mateo Pt. San Pedro Comment
  JROH5813  Stephanomeria virgata John Rawlings, Diane Renshaw 2016-8-8 1931 San Mateo Jasper Ridge Biological Preserve, Stanford University. On steep south-facing road bank opposite Tr. 14/Rd E intersection, a few additional plants at the Tr. 14/Rd E intersection and along the trail 106 Comment
  JROH1275  Stephanomeria virgata Carol Zabel 1989-8-4 19 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road E, north side of road near intersection with Trail 14 Comment
  JROH5328  Stipa lepida John Hunter Thomas 1992-5-15 25334 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15942  Stipa lepida John Rawlings, Ken Hickman 2016-5-26 1817 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH5330  Stipa pulchra John H. Thomas 1955-5-6 4995 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small draw on south side of ridge. 182 Comment
  CAS-BOT-BC423016  Stylomecon heterophylla Philip C. Wheeler 1965-5-12 s.n. San Mateo San Bruno Mountain. South Canyon below western power lines. Comment
  SEINET8060318  Symphoricarpos albus C. F. Baker 1901-9-5 238 San Mateo West side Kings Mountain. Comment
  CAS-BOT-BC271637  Symphoricarpos albus var. laevigatus C. F. Baker 1901-9-5 238 San Mateo West side Kings Mt. Comment
  RSA18299  Symphoricarpos mollis C. B. Wolf 1927-5-31 417 San Mateo North end of Searsville Lake. Comment
  CAS-BOT-BC99055  Symphyotrichum chilense Peter H. Raven 1957-9-1 11294 San Mateo 1.1. mi. s. of Pigeon Point Lighthouse Comment
  SBBG32397  Symphyotrichum chilense L. S. Rose 1966-8-15 66083 San Mateo Pillar Pt 1 Comment
  UC1119619  Symphyotrichum chilense T. Tyrrell 1928-9-11 5 San Mateo 2 mi s San Gregorio; Santa Cruz Quadrangle 91 Comment
  CAS-BOT-BC99059  Symphyotrichum chilense Walter Knight; Irja Knight 1963-10-7 321 San Mateo San Bruno Mountain - Cow Trough Ravine, South San Francisco Comment
  CAS-BOT-BC99092  Symphyotrichum chilense W. R. Dudley 1895-9-21 s.n. San Mateo Menlo Park - Santa Cruz Peninsula Comment
  CAS-BOT-BC99099  Symphyotrichum chilense Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo San Bruno Mountains - Willow Pond Comment
  RSA417609  Symphyotrichum chilense D. D. Keck 1931-9-27 1274 San Mateo Dumbarton bridge Comment
  CAS-BOT-BC99389  Symphyotrichum subspicatum E. H. Quayle 1920-5-18 242 San Mateo Half Moon Bay, Santa Cruz Mountain Peninsula Comment
  SD72386  Symphyotrichum subspicatum Darley F. Howe 1967-8-6 4369 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC376710  Tanacetum bipinnatum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  JROH1283  Tanacetum parthenium John Hunter Thomas 1992-5-26 25357 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  CHSC1159  Taraxia ovata M. Harless 1930-5-2 San Mateo Moss Beach. Comment
  JROH3001  Taraxia ovata John H. Thomas 1971-4-10 15761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC375428  Taraxia ovata R. L. Pendleton 1909-4-3 1342 San Mateo along creek 4 mi back of Stanford University; Los Tronchos Creek 144 Comment
  JROH3004  Taraxia ovata John Hunter Thomas 1978-4-25 19148 San Mateo Jasper Ridge Biological Preserve, Stanford University; old parking area Comment
  SD39526  Taraxia ovata Edith A. Purer 1933-4-18 3623 San Mateo Woodside Road. Comment
  RSA18325  Tellima grandiflora Carl B. Wolf 1929-5-10 3710 San Mateo La Honda. Santa Cruz Mts. Comment
  UCR122916  Tellima grandiflora George K. Helmkamp, E. A. Helmkamp 2001-6-2 6786 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  RSA195668  Tellima grandiflora John H. Thomas 1967-5-7 12836 San Mateo Near intersections of Bean Hollow and Pescadero roads, about 0.5 mile westward from Pescadero. 61 Comment
  UCD39286  Tetragonia expansa B. Crampton 1962-6-11 6517 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  CAS-BOT-BC438263  Tetragonia tetragonoides R. Bacigalupi 1941-10-22 2740 San Mateo Very close to the San Francisco-San Mateo County Line. Comment
  RSA176540  Tetragonia tetragonoides John H. Thomas 1963-8-4 10239 San Mateo Just north of Pigeon Point Lighthouse Comment
  JROH3508  Thalictrum fendleri var. polycarpum John H. Thomas 1961-4-29 9196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC74944  Thalictrum fendleri var. polycarpum C. F. Baker 1902-5-1 692 San Mateo Crystal Springs Lake Comment
  RSA100996  Thermopsis californica var. californica G. Oberlander 1950-4-16 745 San Mateo East of Lower Crystal Springs Lake, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC66668  Thysanocarpus curvipes John H. Thomas 1973-2-12 16453 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1618  Thysanocarpus curvipes John Hunter Thomas 1989-4-20 24642 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1593  Thysanocarpus curvipes subsp. curvipes John Hunter Thomas 1981-4-7 20299 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH394  Torilis nodosa John Hunter Thomas 1986-5-6 24018 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH404  Torilis nodosa John Hunter Thomas 1991-5-2 25021 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH383  Torilis nodosa John Hunter Thomas 1980-5-13 19966 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA45320  Torreya californica I. L. Wiggins 1945-5-5 11160 San Mateo Along La Honda Creek about 1 mile above La Honda 152 Comment
  CAS-BOT-BC172904  Toxicodendron diversilobum C. F. Leitholt 1901-3-16 s.n. San Mateo Los Trancos Creek, near Stanford University Comment
  CAS-BOT-BC172905  Toxicodendron diversilobum Ned Cahill 1974-5-13 241 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Located within five feet of the stream. Comment
  JEPS121588  Toxicodendron diversilobum Adam C. Schneider with C. Matt Guilliams 2013-4-7 116 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC377138  Tragopogon porrifolius Phillip Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crocker Industrial Park Comment
  RSA681672  Trichostema lanatum Deb Annuschka 1989-6-13 230 San Mateo Yerba Buena Herbarium Demonstration Garden. Comment
  CHSC1405  Trientalis latifolia J. Baynes 1929-5-20 San Mateo Near Moss Beach. Comment
  POM131281  Trientalis latifolia C. F. Baker 1902-3-30 427 San Mateo Crystal Springs Lake Comment
  UC1123294  Trientalis latifolia N. K. Carlson 1935-7-3 118 San Mateo 3 mi s of Bellvale 91 Comment
  JROH2240  Trifolium barbigerum John H. Thomas 1974-4-19 17162 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11173562 Image available Trifolium barbigerum A. A. Heller 1905-5-15 7842 San Mateo Near Alma Comment
  SEINET881659 Image available Trifolium bicephalum A. D. E. Elmer 1903-1 4812 San Mateo San Pedro. Comment
  RSA633305  Trifolium bifidum Michael A. Vincent, Ethan H. Freid, Karl Vincent 1998-4-9 8201 San Mateo Along east side of Canada Road, ca. 200 yards southeast of its junction with Edgewood Road, just southwest of I-280, at Filoli Center. Comment
  UC165625  Trifolium bifidum var. decipiens J. Burtt Davy 1895-1 1019 San Mateo Pilarcitos Comment
  UC202758  Trifolium ciliolatum A. D. E. Elmer May, 1903 4789 San Mateo Portola Comment
  JROH2262  Trifolium depauperatum var. amplectens John Hunter Thomas 1981-4-21 20463 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA4289  Trifolium dubium T. C. Fuller 1967-6-13 15945 San Mateo South side of road to Half Moon Bay, 0.7 mile west of Skyline Boulevard, Crystal Springs. 0 Comment
  JROH2288  Trifolium fucatum John H. Thomas 1964-4-19 10321 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2297  Trifolium fucatum John Hunter Thomas 1981-4-29 20511 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5960  Trifolium glomeratum John Rawlings 2017-5-30 2086 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road B at edge of oak scrub, 81 Comment
  JROH2312  Trifolium glomeratum Ann Lambrecht 2006-4-21 23 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside, N side of Road A, in old seven acre lease lot Comment
  SJSU659  Trifolium grayi J. E. Hagerty 1950-5-20 San Mateo Pescadero Comment
  CDA27988  Trifolium macraei D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  SEINET10862726 Image available Trifolium macraei Adolph D. E. Elmer Elmer 4812 San Mateo San Pedro. Comment
  JROH2341  Trifolium oliganthum John Hunter Thomas 1984-4-24 23309 San Mateo Jasper Ridge Biological Preserve, Stanford University; end of causeway area where earth has been removed Comment
  JROH2346  Trifolium subterraneum John Hunter Thomas 1980-4-10 19873 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2352  Trifolium subterraneum John Hunter Thomas 1983-4-3 21312 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside near Searsville Lab Comment
  JROH2373  Trifolium variegatum John H. Thomas 1955-5-6 4999 San Mateo Jasper Ridge Biological Preserve, Stanford University; small draw on south side of ridge Comment
  JROH2387  Trifolium variegatum John Hunter Thomas 1981-4-23 20470 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET4206967  Trifolium variegatum Lewis S. Rose 1953-4-5 53011 San Mateo Redwood City, CA, along Bayshore Highway.; 0 3 Comment
  RSA131360  Trifolium variegatum var. melananthum John H. Thomas 1955-5-6 4999 San Mateo Jasper Ridge about 3.5 miles southwest of Stanford University. 152 Comment
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Feb 5 2019
  UC165542  Trifolium variegatum var. variegatum J. Burtt Davy 1893-6-22 838 San Mateo Lake Pilarcitos Comment
  JROH2398  Trifolium willdenovii John H. Thomas 1967-5-10 12844 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM18843  Trifolium willdenovii C. F. Baker 1902-4-4 451 San Mateo Crystal Springs Lake. Comment
  POM88144  Trifolium willdenovii L. R. Abrams 1902-4-13 2319 San Mateo San Andreas Lake. Comment
  UC74993  Trifolium willdenovii C. F. B. 1902-4-4 445 San Mateo Crystal Springs Lake Comment
  JROH2410  Trifolium willdenovii John Hunter Thomas 1986-4-10 23954 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCSC006033  Trifolium willdenovii Randall Morgan 1996-5-24 2967 San Mateo Pacifica, San Pedro Mt. Comment
  UCD165019  Triglochin scilloides Peter Rubtzoff 1975-5-21 7960 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC401045  Trillium J. Lovelle 1926-8-1 39 San Mateo Mt. Ellen Trail Comment
  UC1140924  Trillium chloropetalum W. R. Dudley 1900-3-16 San Mateo by trail n. of Tripp's Store Woodside; Santa Cruz Peninsula, Woodside Comment
  JROH4732  Trillium chloropetalum John Hunter Thomas 1980-4-5 19858 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  POM204511  Trillium chloropetalum var. chloropetalum I. L. Wiggins 1931-2-21 5092 San Mateo Pescadero Beach. Comment
  RSA116750  Trillium chloropetalum var. chloropetalum James I. McMurphy 1902-3-22 s.n. San Mateo Above Portola. Comment
  CAS-BOT-BC521064  Trillium chloropetalum var. giganteum Alice Eastwood 1916-3-1 s.n. San Mateo San Mateo Comment
  CAS-BOT-BC521067  Trillium chloropetalum var. giganteum Phillip C. Wheeler 1965-6-20 s.n. San Mateo San Bruno Mountain: Trillium Gulch near Knife Rock Comment
  RSA378199  Trillium chloropetalum var. giganteum Carl B. Wolf 1927-2-17 200 San Mateo 2 miles back of Stanford University along San Francisquito Creek. 61 Comment
  SEINET12046255  Trillium chloropetalum var. giganteum C. F. Leithold 1894-1 s.n. San Mateo Santa Cruz Peninsula, Woodside Comment
  CAS-BOT-BC133445  Trillium ovatum W. R. Dudley 1903-5-2 s.n. San Mateo Near Iverson's (Near Pescadero) Comment
  CAS-BOT-BC133447  Trillium ovatum Elmer I. Applegate 1895-3-9 43 San Mateo Near Woodside Comment
  RSA378207  Trillium ovatum A. C. Life 1924-2-22 s.n. San Mateo Kings Mountain, Redwood Park. Comment
  OBI9375  Triphysaria eriantha subsp. rosea Lewis S. Rose 1965-3-25 65010 San Mateo San Bruno Mts, N end 122 Comment
  CAS-BOT-BC238566  Triphysaria floribunda David D. Keck 1932-5-6 1471 San Mateo One mile south of San Mateo, on highway US 101 Comment
  CAS-BOT-BC238572  Triphysaria floribunda C. F. B. 1902-3-22 346 San Mateo South San Francisco Comment
  CAS-BOT-BC238570  Triphysaria floribunda W. R. Dudley 1900-3-17 s.n. San Mateo The Santa Cruz Peninsula. Seal Cove Comment
  JROH4138  Triphysaria pusilla John H. Thomas 1971-4-10 15753 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR139356  Triphysaria pusilla David D. Keck 1932-5-11 1766 San Mateo San Francisco Bay Region, 2 mi north of San Gregorio 122 Comment
  JROH5911  Triteleia hyacinthina J. Nordby 1982-4-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine grassland along roadside, near oak woodlands Comment
  CAS-BOT-BC523096  Triteleia ixioides subsp. ixioides Fred Hemphill 1973-5-6 783 San Mateo San Carlos, area north of Malabar Road and Melendy Drive 207 Comment
  CAS-BOT-BC526102  Triteleia ixioides subsp. ixioides Josephine D. Randall 1907-6-8 233 San Mateo Santa Cruz Peninsula, Portola Valley Comment
  JROH4753  Triteleia laxa John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC200487  Triticum aestivum Phillip C. Wheeler 1965-6-19 s.n. San Mateo Brisbane Lagoon Comment
  JROH1625  Tropidocarpum gracile H. J. Dengler 1972-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north bend of San Francisquito Creek Comment
  RSA10402  Typha angustifolia Carl B. Wolf 1927-6-15 2168 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  UC241789  Typha latifolia Malcolm A. Nobs and S. Galen Smith 1949-8-25 1554 San Mateo Sharp Park; along ocean coast, Sharp Park Comment
  JEPS87363  Ulex europaeus Don Pendleton 1993-10-28 San Mateo 0.3 mi e San Bruno Mountain County Park Gatehouse (on Guadalupe Canyon Parkway); San Bruno Mountain County Park 300 Comment
  CAS-BOT-BC91228  Umbellularia californica C. F. Leithold 1901-1-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Canyon near Black Mountain. Comment
  JROH139  Umbellularia californica John H. Thomas 1974-10-12 17621 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM272292  Umbellularia californica Lyman Benson 1931-2-16 2582 a San Mateo Stanford University, San Francisquito Creek. 61 Comment
  POM50398  Umbellularia californica L. R. Abrams, W. W. Eggleston 1924-3-23 19565 San Mateo Coast Range, near Palo Alto. 60 Comment
  RSA15629  Umbellularia californica C. B. Wolf 1928-2-11 1471 San Mateo East base of Kings Mt. road. Comment
  CAS-BOT-BC382764  Uropappus lindleyi Lewis S. Rose 1933-4-30 33127 San Mateo Redwood City Comment
  CAS-BOT-BC382765  Uropappus lindleyi George Oberlander 1949-7-10 714 San Mateo San Francisco Watershed Reserve. Near Skyline Blvd. Comment
  CAS-BOT-BC382767  Uropappus lindleyi W. R. Dudley 1894-4-21 s.n. San Mateo San Mateo Ravine Comment
  JROH4237  Urtica dioica subsp. holosericea D. E. Breedlove 1971-5-31 19379 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH4235  Urtica dioica subsp. holosericea John H. Thomas 1961-6-14 9547 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge across the two parts of Searsville Lake Comment
  RSA152074  Urtica urens John H. Thomas 1961-5-6 9225 San Mateo About 0.25 mile west of center of Pescadero. 15 Comment
  CAS-BOT-BC412536  Urtica urens John H. Thomas 1968-12-18 14870 San Mateo About 1 mile west of Pescadero toward the coast Comment
  CAS-BOT-BC199370  Vaccinium ovatum James McMurphy 1907-4-27 js.n. San Mateo Kings Mt. Comment
  RSA681683  Vaccinium ovatum Annuschka Deb 1989-3-17 50 San Mateo Woodside. Comment
  UCD118098  Vaccinium ovatum Lewis S. Rose 1964-3-14 64005 San Mateo Kings Mountain. 609 Comment
  CAS-BOT-BC199372  Vaccinium ovatum Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Huckleberry Ridge Comment
  CAS-BOT-BC199463  Vaccinium parvifolium L. R. Abrams 1909-8-1 4247 San Mateo Between La Honda & Pescadero Comment
  POM131821  Vaccinium parvifolium E. B. Copeland 1903-5-9 3249 San Mateo Big Basin of Pescadero Creek. Comment
  RSA187270  Vaccinium parvifolium W. R. Dudley 1908-5-2 s.n. San Mateo Iverson's, upper Pescadero Creek. Comment
  CAS-BOT-BC76148  Vancouveria planipetala D. D. Davis 1903-5-2 s.n. San Mateo Near Iverson's on Pescadero Creek. Comment
  RSA187475  Verbascum thapsus John H. Thomas 1958-9-15 7477 San Mateo 3 miles north of Woodside along Canada Rd. 122 Comment
  CAS-BOT-BC389676  Verbena lasiostachys Maryann Danielson 1969-7-21 s.n. San Mateo On road into Mud Lake (San Francisco Watershed area-Dam side) Comment
  JROH4264  Verbena lasiostachys var. lasiostachys John Hunter Thomas 1977-6-16 18745 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4266  Verbena lasiostachys var. lasiostachys John Hunter Thomas 1987-5-26 24318 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4275  Verbena lasiostachys var. scabrida John H. Thomas 1973-6-15 16834 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4283  Verbena lasiostachys var. scabrida John Hunter Thomas 1986-6-7 24081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC112848  Veronica americana Katharine Brandegee July 1908 San Mateo near San Pedro Comment
  CAS-BOT-BC157694  Veronica americana Peter Rubtzoff 1980-8-4 9560 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, westernmost part of the area on slope across fence. Comment
  JROH5832  Veronica americana Ann Lambrecht, Teri Barry, Nona Chiariello, and Alice Cummings 2014-5-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek delta of Searsville Lake Comment
  JROH4151  Veronica peregrina subsp. xalapensis John H. Thomas 1974-4-25 17218 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187288  Veronica persica John H. Thomas 1964-4-11 10308 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  POM17349  Vicia americana var. americana C. F. Baker 1903-4-6 1972 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  POM127023  Vicia americana var. americana R. L. Pendleton 1907-4-20 608 San Mateo Lake Merced 30 Comment
  JROH2426  Vicia benghalensis John Hunter Thomas 1977-6-16 18797 -1 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG30068  Vicia benghalensis J. T. Howell 1938-6-4 13886 San Mateo Burlingame Comment
  POM16863  Vicia exigua C. F. Baker 1902-5-4 741 San Mateo Woodside. Comment
  POM16746  Vicia gigantea A. D. E. Elmer 1903-06 4445 San Mateo Pescadero Comment
  JROH2435  Vicia sativa subsp. nigra John H. Thomas 1975-4-19 17798 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2437  Vicia sativa subsp. nigra John Hunter Thomas 1981-4-30 20515 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2449  Vicia sativa subsp. sativa John Hunter Thomas 1983-4-3 21311 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area Comment
  UCR123142  Vicia tetrasperma George K. Helmkamp, E. A. Helmkamp 2001-6-2 6769 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  JEPS81151  Vicia villosa Edward Lee with H. L. Mason 1935-6-16 1527 San Mateo between Ano Nuevo and Franklin Point Comment
  CAS-BOT-BC264044  Viola adunca Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain. Below top of mountain in vicinity of radio station Comment
  CAS-BOT-BC264045  Viola adunca Miss E. Cannon 1899-4-21 s.n. San Mateo E of Colma Comment
  CAS-BOT-BC264047  Viola adunca Alice Eastwood 1915-3-13 s.n. San Mateo San Bruno hills Comment
  CAS-BOT-BC264051  Viola adunca Roxana S. Ferris 1920-3-8 1767 San Mateo Montara Mountains, vicinity of South Peak 518 Comment
  JEPS50208  Viola adunca W. I. Follett 1934-2-18 1 San Mateo 4 mi n of Pigeon Point (from a point beside the main highway) Comment
  RSA15353  Viola adunca Carl B. Wolf 1927-1-29 168 San Mateo Pebble Beach, coast south of Pescadero. Comment
  POM135230  Viola glabella A. D. E. Elmer 1900-04 2263 San Mateo Kings Mtn. Comment
  UC1121577  Viola glabella Beryl Schreiber 1939-4-3 2610 San Mateo 1 mi s of La Honda (Pescadero-La Honda Road) 152 Comment