Search Results — 2000 specimen records retrieved (1341 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CHSC22697  Abronia latifolia Robert A. Schlising; Glenn Keator 1962-2-3 2043 San Mateo Sand dunes along Hwy 1, 3.9 mi N of Jct with Bonnie Doon Road. Comment
  SD12566  Abronia latifolia Edith Purer 1933-7-27 5381 San Mateo Two miles south of Pigeon Point Comment
  RSA0025758  Abronia latifolia E. A. Purer 1933-7-27 5381 San Mateo 2 miles south of Pigeon Point. Comment
  RSA0025759  Abronia latifolia C. F. Baker 1902-10-1 1741 San Mateo Pillar Point. Comment
  UC1327251  Acaena pinnatifida var. californica John T. Doyen 1966-3-28 35 San Mateo San Bruno Mountains, near Radio Towers on top. Comment
  CAS-BOT-BC451128  Acaena pinnatifida var. californica Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo Near old quarry on area adjacent to the mouth of Colma Canyon; San Bruno Mountains Comment
  CAS-BOT-BC219606  Acanthomintha duttonii D. K. Gillespie 1930-4-21 9220 San Mateo Emerald Lake near Redwood City Comment
  UC761787  Acanthomintha duttonii R. F. Hoover 1941-5-20 5110 San Mateo Redwood City Comment
  POM118224  Acanthomintha obovata subsp. duttonii Harry A. Dutton, Miss H. A. Walker 1915-5-26 3819 San Mateo Near the Menlo Golf Club. Comment
  SEINET12234140  Acer macrophyllum Unknown 1932-1 8984 San Mateo Streams near Gov. Rolph Estate Comment
  SEINET12234141  Acer macrophyllum Unknown 1932-1 8932 San Mateo La Honda Road Comment
  JROH167  Acer negundo John H. Thomas 1968-3-17 14175 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake 106 Comment
  UC138076  Acer negundo var. californicum C. F. Baker 1902-4 472 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC336917  Acer negundo var. californicum C. B. Wolf 1930-5-11 1809 San Mateo 4 miles W. of La Honda, Santa Cruz Mts. 91 Comment
  CAS-BOT-BC21551  Achillea millefolium Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC21588  Achillea millefolium Fred Hemphill 1973-4-22 696 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH443  Achillea millefolium John H. Thomas 1973-6-10 16823 San Mateo Jasper Ridge Biological Preserve, Stanford University 190 Comment
  CAS-BOT-BC21576  Achillea millefolium David D. Keck 1939-7-1 5011 San Mateo 3 mi. S. of Pescadero, 1 mile from the ocean 60 Comment
  JROH2060  Acmispon americanus var. americanus John Hunter Thomas 1977-6-16 18755 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  OBI13045  Acmispon americanus var. americanus Lewis S. Rose 1964-9-5 64071 San Mateo Emerald Lake, W of Redwood City 244 Comment
  SD37934  Acmispon brachycarpus Cummings, McCallum 1933-5-10 3697 San Mateo Hill on back of of Stanford campus. Comment
  OBI12966  Acmispon glaber var. glaber Robert F. Hoover 1964-9-10 9290 San Mateo Devil's slide, between Pedro-Point and Montara Comment
  JEPS128393  Acmispon wrangelianus Adam C. Schneider 2013-5-17 131 San Mateo Crystal Springs Reservoir. Comment
  JROH2098  Acmispon wrangelianus John H. Thomas 1974-4-4 17078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15213  Acmispon wrangelianus Toni Corelli 2012-4-13 800 San Mateo Pigeon Point Light Station, north of light station, bluff top west of Pigeon Point Road 8 Comment
  POM148958  Actaea rubra subsp. arguta A. D. E. Elmer 1903-5-1 4703 San Mateo Butano Creek. 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
  CAS-BOT-BC139952  Adenostoma fasciculatum Fred Hemphill 1973-4-22 744 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC139959  Adenostoma fasciculatum George Oberlander 1949-6-25 234 San Mateo Sawyer Ridge Comment
  CAS-BOT-BC65517  Adiantum aleuticum John Hunter Thomas 1955-3-18 4689 San Mateo Five miles up Tunitas Creek Road from coast 304 Comment
  SEINET182852 Image available Adiantum emarginatum John P. Young 1925-1-10 San Mateo Burlingame Comment
  JROH89  Adiantum jordanii John H. Thomas 1968-4-13 14290 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH92  Adiantum jordanii John Hunter Thomas 1981-4-5 20285 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  JROH2705  Aesculus californica Daniel Cohen 1953-4-11 27 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2706  Aesculus californica John H. Thomas 1969-5-28 15086 San Mateo Jasper Ridge Biological Preserve, Stanford University 134 Comment
  RSA131267  Aesculus californica Deborah Hichborn 1920-5-20 s.n. San Mateo San Francisquito Creek. Santa Cruz Mountain Peninsula. Comment
  UC615561  Aesculus californica Beryl O. Schreiber 1932-5-29 313 San Mateo near San Mateo Comment
  UC206220  Agoseris apargioides var. apargioides Katharine Brandegee 1917-6-15 San Mateo Moss Beach Moss Beach Comment
  UC29397  Agoseris apargioides var. apargioides F. P. McLean 1873-6-1 San Mateo Searsville Comment
Read comments
Oct 8 2006
  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-BC46170  Agoseris heterophylla Ned Cahill 1974-5-18 295 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH495  Agoseris heterophylla John Hunter Thomas 1988-6-2 24493 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC46172  Agoseris heterophylla W. R. Dudley 1906-5-13 s.n. San Mateo S.W. of San Mateo Comment
  CAS-BOT-BC46173  Agoseris heterophylla John H. Thomas 1971-5-2 15816 San Mateo Near intersection of Canada Road and Edgewater [sic]Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC15229  Agoseris hirsuta W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  CAS-BOT-BC15231  Agoseris hirsuta W. R. Dudley 1905-6-19 s.n. San Mateo Alpine School House, Black Mountain Comment
  CAS-BOT-BC15248  Agoseris hirsuta Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain, top of Quarry 4 Comment
  SJSU15809  Agrostis blasdalei Toni Corelli 2016-7-25 1260 San Mateo Bean Hollow State Beach along Arroyo de los Frijoles Trail; bare area west and adjacent to designated trail 5 Comment
  CAS-BOT-BC127465  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo State Highway 1, ca. 5-6 miles south of San Francisco. Comment
  CAS-BOT-BC138951  Agrostis pallens W. Knight; I. Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Colma Canyon, south ridge. Comment
  SJSU16010  Agrostis pallens John Rawlings, Toni Corelli 2016-5-27 1847 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  SEINET7594107 Image available Agrostis pallens Henry E. Meser 1932-1 s. n. San Mateo Black Mountain Road, Hillborough Hills near Burlingame Comment
  JROH4156  Ailanthus altissima John H. Thomas 1980-11-18 20172 San Mateo Jasper Ridge Biological Preserve, Stanford University 98 Comment
  JROH4829  Aira caryophyllea John H. Thomas 1984-5-3 23333 San Mateo Jasper Ridge Biological Preserve, Stanford University 159 Comment
  POM199071  Aira caryophyllea A. D. E. Elmer 1903-05 4705 San Mateo Crystal Springs Lake. Comment
  RSA195578  Aira caryophyllea John H. Thomas 1966-4-22 11570 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  RSA591524  Aira caryophyllea D. D. Keck 1932-3-6 1480 San Mateo Open hillside just west of Millbrae Highlands. 15 Comment
  SEINET10509644  Aira caryophyllea Adolph D. E. Elmer Elmer 4705 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC138247  Aira caryophyllea var. caryophyllea Le Roy Abrams 1902-5-4 2405 San Mateo Woodside. Comment
  JROH4539  Allium amplectens John H. Thomas 1968-5-3 14442 San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of ridge in grasslands. Serpentine. Comment
  JROH4545  Allium amplectens John Hunter Thomas 1986-5-8 24028 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4546  Allium amplectens John Hunter Thomas 1989-5-11 24731 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
  CAS-BOT-BC132030  Allium peninsulare var. franciscanum L. R. A. 1902-5-4 2411 San Mateo Woodside Comment
  JEPS33718  Allium peninsulare var. franciscanum D. E. Breedlove 1963-5-13 4942 San Mateo w San Mateo (on the se corner of the junction of Crystal Springs Rd. and Polhemus Rd.) Comment
  CAS-BOT-BC474300  Allium unifolium Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo North facing slope south of new Guadalupe Parkway to west of where it meets Radio Road Comment
  JROH1323  Alnus rhombifolia Otto M. Sokol 1953-5-21 100 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam, Searsville Lake Comment
  JROH1327  Alnus rhombifolia John H. Thomas 1971-5-30 15981 San Mateo Jasper Ridge Biological Preserve, Stanford University; along creek below dam Comment
  CAS-BOT-BC169341  Alnus rubra John H. Thomas 1965-11-26 11456 San Mateo 2.5 miles up Tunitas Creek Road (as measured along the road) from the ocean 60 Comment
  SJSU10489  Alopecurus pratensis S. H. Casey & C. A. Brock 1975-6-20 546 San Mateo by Old Woodside Store, Woodside 134 Comment
  CAS-BOT-BC137920  Alopecurus saccatus David D. Keck 1932-5-6 1472 San Mateo Burlingame. North city limits. Comment
  UC188946  Alopecurus saccatus Michener Sept 1891 124 San Mateo San Bruno Rd. Comment
  POM164507  Amaranthus californicus C. F. Baker 1902-10-20 1855 San Mateo Searsville. Comment
  SD255621  Amaranthus deflexus A. C. Sanders 2015-12-27 41888 San Mateo San Francisco Peninsula: San Bruno, along Hwy 82 between 380 Fwy and San Bruno Ave (San Francisco South 7.5'Q) 14 Comment
  CAS-BOT-BC44925  Ambrosia chamissonis Robert T. Orr 1961-7-13 s.n. San Mateo Ano Nuevo Island Comment
  CAS-BOT-BC55575  Ambrosia psilostachya Elizabeth McClintock; Paul Reeberg 1988-10-11 s.n. San Mateo San Bruno Mountains, north of Kennedy School 198 Comment
  CAS-BOT-BC136828  Amelanchier utahensis A. D. E. Elmer 1903-5-1 4659 San Mateo [Slates] Slate Creek 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
  UC1178221  Amsinckia lunaris Gene B. Newcomb 1953-5-20 116 San Mateo 1.7 mi below junction to Skyline (opposite gravel pit, Road w of San Mateo City to Skyline Blvd, (Hillsborough)) Comment
  JROH1350  Amsinckia menziesii John Hunter Thomas 1987-4-4 24169 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  JROH1352  Amsinckia menziesii John Hunter Thomas 1987-4-7 24178 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Dam Comment
  RSA0091061  Amsinckia spectabilis John H. Thomas 1961-5-13 9337 San Mateo Franklin Point. Comment
  SEINET7062815  Amsinckia spectabilis A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach west of Pescadero. UTM Zone 10, 551765mE, 4121313mN. (WGS84/NAD83). 0 Comment
  RSA116698  Anagallis arvensis W. R. Dudley 1900-3-17 s.n. San Mateo Bank near Ocean, South slope montara mts. Comment
  UCSC007718  Anagallis arvensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park 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
  UC1125508  Anaphalis margaritacea G. E. Sindel 1935-7-22 294 San Mateo 1/4 mi s of Pescadero; Santa Cruz Quad. 30 Comment
  CAS-BOT-BC45185  Anaphalis margaritacea Elizabeth McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain, slope below and east of Nike station. Comment
  CAS-BOT-BC391911  Anemone grayi A. D. E. Elmer 1903-4-1 4844 San Mateo King's Mountain Comment
  CAS-BOT-BC391914  Anemone grayi J. H. Thomas 1949-4-14 274 San Mateo Kings Mountain Comment
  CDA38223  Angelica hendersonii T. C. Fuller 1957-10-2 407 -57 San Mateo San Gregorio. 0 Comment
  POM132666  Angelica tomentosa var. tomentosa A. D. E. Elmer 1903-07 4998 San Mateo Crystal Springs Lake, southern end Comment
  CAS-BOT-BC273187  Anisocarpus madioides Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  UC662642  Anisocarpus madioides L. S. Rose 1941-7-2 41287 San Mateo Kings Mountain 540 Comment
  UC913108  Anisocarpus madioides David D. Keck 1932-5-11 1497 San Mateo above Woodside (on La Honda road, e slope of Santa Cruz Mtns.); Santa Cruz Mtns. 228 Comment
  JROH499  Anthemis cotula John H. Thomas 1974-6-27 17453 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing below Searsville Dam Comment
  JROH498  Anthemis cotula John H. Thomas 1963-6-23 10173 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  CAS-BOT-BC280650  Anthoxanthum occidentale John H. Thomas 1968-12-18 14868 San Mateo Oakland YMCA Camp near Loma Mar, between Pescadero and La Honda Comment
  UCD85325  Anthoxanthum occidentale August L. Hormay 1932-3-6 s.n. San Mateo Pescadero Blumequist Mill - Redwood belt. Comment
  SEINET3127888  Anthoxanthum odoratum Unknown 1902-6-7 2258 San Mateo Kings Mt Comment
  JEPS5265  Antirrhinum kelloggii R. F. Hoover 1941-4-23 4905 San Mateo Redwood City hills Redwood City Comment
  SEINET3161271  Aphyllon comosum W. A. Setchell 1908-8-30 sn San Mateo Farallone City Comment
  CAS-BOT-BC392066  Aquilegia eximia W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Southeast of Crystal Springs Lake Comment
  CAS-BOT-BC405853  Aquilegia formosa David D. Keck 1932-5-11 1771 San Mateo Three miles west of Kings Mountain, on the road to Tunitas, west slope of Santa Cruz Mountains. 450 Comment
  CAS-BOT-BC405898  Aquilegia formosa Peter Rubtzoff 1963-5-14 1353 San Mateo Brushy hills near the road east of Pilarcitos Lake Comment
  SD1680  Aquilegia formosa Ulysses S. Grant IV 1925-6-1 San Mateo near La Honda Comment
  CAS-BOT-BC17318  Arabis blepharophylla Walter Knight; Irja Knight 1965-3-21 967 San Mateo San Bruno Mountains. On ridge near Brisbane power lines. Comment
  CAS-BOT-BC17321  Arabis blepharophylla Alice Eastwood 1914-3-12 3753 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC17330  Arabis blepharophylla Lewis S. Rose 1933-3-19 33027 San Mateo South San Francisco. Comment
  CAS-BOT-BC17332  Arabis blepharophylla Lewis S. Rose 1961-4-5 61032 San Mateo San Bruno Mountains. 365 Comment
  CAS-BOT-BC17333  Arabis blepharophylla John H. Thomas 1961-5-7 9314 San Mateo San Bruno Mountains in northern part of county. 396 Comment
  CAS-BOT-BC17339  Arabis blepharophylla L. Constance; R. Bacigalupi; C. R. Bell 1951-3-25 3369 San Mateo Southeast side of Colma Canyon. 60 Comment
  RSA0125533  Arabis blepharophylla D. W. Taylor 1988-3-30 9477 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain. 237 Comment
  UC396977  Aralia californica Fred Gianocca 1929-11-8 San Mateo Half Moon Bay Comment
  JROH1915  Arbutus menziesii A. D. E. Elmer 1903-5-1 4515 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH1916  Arbutus menziesii John H. Thomas 1959-4-5 7665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1920  Arbutus menziesii John H. Thomas 1974-5-29 17397 San Mateo Jasper Ridge Biological Preserve, Stanford University; near riders' shack Comment
  CAS-BOT-BC24170  Arctostaphylos andersonii W. R. Dudley 1905-6-12 s.n. San Mateo Trail below China Pt., Pescadero Creek. Comment
  CAS-BOT-BC24172  Arctostaphylos andersonii John H. Thomas 1968-12-18 14876 San Mateo Along Skyline Blvd. between Gulch Road and la Honda Rd. 457 Comment
  CAS-BOT-BC24198  Arctostaphylos andersonii A. T. Harrison 1970-3-13 s.n. San Mateo San Francisco Watershed reserve. On ridge west of Old Whipple Rd. on western extension of Edgewood Rd. Comment
  UCD50392  Arctostaphylos andersonii Robert E. Preston 2001-5-29 1533 San Mateo Ca. 9 mi nnw of Boulder Creek. 377 Comment
  CAS-BOT-BC24173  Arctostaphylos andersonii W. R. Dudley 1901-12-1 s.n. San Mateo Ridge head of Gazos Creek Comment
  SEINET11984878  Arctostaphylos andersonii R. Gankin, Jaacov, J. B. 1965-1 384 San Mateo CA 35 (Skyline Blvd), 1.1 mi N of junction with CA 84 Comment
  SEINET12001640  Arctostaphylos andersonii W. R. Dudley 1906-1 5 San Mateo Kings Mt., Santa Cruz Range, Santa Cruz Peninsula 610 Comment
  SEINET11987130  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I. 1980-1 3828 San Mateo Tilden Botanic Garden, Berkeley, originally from windswept San Bruno Mountain 305 Comment
  CAS-BOT-BC23506  Arctostaphylos crustacea W. R. Dudley 1893-4-1 s.n. San Mateo Hills back of the McDonough Ranch near Portola. Comment
  JROH5766  Arctostaphylos crustacea subsp. crustacea John Rawlings 2016-11-14 1952 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 120 yards north of Road F opposite its intersection with Trail 17 to Goya Gate 178 Comment
  CAS-BOT-BC24731  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4417 San Mateo San Bruno Mtn. Buckeye Canyon on Oak Ridge. 137 Comment
  CAS-BOT-BC24729  Arctostaphylos glandulosa subsp. glandulosa John Kipping 1972-3-5 s.n. San Mateo Steep slope in upper Buckeye Canyon. Comment
  CHSC39432  Arctostaphylos imbricata B. A. Stein 1981-3-1 442 San Mateo San Bruno Mt., northeast summit ridge just below Radio Rd. 396 Comment
  HSC7758  Arctostaphylos imbricata L. S. Rose 1964-4-24 64022 San Mateo San Bruno Hills 335 Comment
  RSA166365  Arctostaphylos imbricata R. F. Thorne, Percy C. Everett, K. Thorne 1963-6-9 322256 San Mateo On top of San Bruno Mt. Near the TV tower 335 Comment
  JEPS47726  Arctostaphylos montaraensis Walter Knight and Irja Knight 1966-3-27 1761 San Mateo Pacific Ridge San Bruno Mt. 358 Comment
  UCD51760  Arctostaphylos montaraensis Walter Knight; Irja Knight and Elizabeth McClintock Date Unknown 4447 San Mateo Pacifica; San Pedro County Park; about 1/2 dozen plants 1/4 mi. east of parking lot. Comment
  SEINET11987172  Arctostaphylos montaraensis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4087 San Mateo Strybing Arboretum, San Francisco, orig. from San Bruno Mt. in 1963 Comment
  CAS-BOT-BC44705  Arctostaphylos regismontana Lewis S. Rose 1932-1-16 3214 San Mateo Kings Mountain 640 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
  RSA40324  Arctostaphylos regismontana L. S. Rose 1947-3-11 47028 San Mateo Kings Mountain, Type Locality. 609 Comment
  RSA636747  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24627 San Mateo NW side of Montara Mtn. 150 Comment
  UC876530  Arctostaphylos regismontana Lewis S. Rose 1939-2-26 39015 San Mateo Kings Mountain Kings Mountain (type locality) 670 Comment
  UCD53804  Arctostaphylos regismontana Roman Gankin 1966-5-17 740 A San Mateo Montara Mountain. Comment
  CAS-BOT-BC44736  Arctostaphylos regismontana Robert F. Hoover 1941-2-12 4768 San Mateo King's Mountain Comment
  CAS-BOT-BC44671  Arctostaphylos sensitiva W. R. Dudley 1899-1-2 s.n. San Mateo On dry hills between Butano Cr. and Little Butano Cr. - Santa Cruz Mountain Peninsula Comment
  JEPS98865  Arctostaphylos tomentosa subsp. crustacea James B. Roof, Irja Knight 1964-9-14 San Mateo Montara Mountain, W summit Comment
  RSA44374  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1949-3-18 49006 San Mateo Hills west of Belmont. 91 Comment
  RSA636848  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24648 San Mateo NW side of Montara Mtn. 150 Comment
  UC1042396  Arctostaphylos tomentosa subsp. crustacea Lewis S. Rose 1949-3-18 49006 San Mateo hills w Belmont 91 Comment
  UC1120127  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1935-1-25 1471 San Mateo 2 1/2 mi nw Sierra Moreno Peak; Santa Cruz Quadrangle 609 Comment
  UC311082  Arctostaphylos tomentosa subsp. crustacea A. D. E. Elmer May, 1903 4558 San Mateo King's Mountain Comment
  UCD51856  Arctostaphylos tomentosa subsp. crustacea Roman Gankin 1959-2-22 321 San Mateo 3.5 miles from junction state route 5 on King's Mt. Road, San Mateo County, California. Comment
  POM285160  Arctostaphylos tomentosa subsp. tomentosiformis Lyman Benson 1929-3-2 986 San Mateo Hill east of Lake Searsville. Comment
  POM367466  Arctostaphylos tomentosa subsp. tomentosiformis L. S. Rose 1949-3-18 49006 San Mateo Hills west of Belmont. 91 Comment
  CAS-BOT-BC46837  Arctostaphylos uva-ursi Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mt. Few hundred yards up Cable Ravine Comment
  JEPS91222  Arctostaphylos uva-ursi var. suborbiculata Dean W. Taylor 1988-4-29 9585 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22d W of summit, 371 Comment
  SEINET11987154  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I. 1981-1 4054 San Mateo Tilden Botanic Garden, Berkeley, orig. from Kamchatka Point, San Bruno Mountain Comment
  CAS-BOT-BC102182  Argyranthemum foeniculaceum Elizabeth McClintock 1988-6-7 s.n. San Mateo San Bruno Comment
  CAS-BOT-BC47695  Armeria maritima subsp. californica Otto M. Sokol 1953-5-9 81 San Mateo Pebble Beach Comment
  POM131516  Armeria maritima subsp. californica Katherine Brandegee s.n. San Mateo Moss Beach. Comment
  SBBG58493  Armeria maritima subsp. californica J. M. Tucker 1941-4-6 211 San Mateo roadside, Pigeon Point Comment
  POM190257  Arnica discoidea D. D. Keck 1932-5-11 1775 San Mateo East side of Kings Mountain, on Kings Mountain Road 350 Comment
  SEINET11836170  Artemisia californica L. S. Rose 1936-1 36716 San Mateo Granada 30 Comment
  OBI49162  Artemisia douglasiana Lewis S. Rose 1938-8-18 38232 San Mateo San Mateo 30 Comment
  UCSC007719  Artemisia douglasiana Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC90859  Artemisia pycnocephala Elsie M. Zeile 1921-7-30 1142 San Mateo Salada Comment
  POM165734  Asarum caudatum E. B. Copeland 1903-5-9 s.n. San Mateo Mountains beyond Pescadero Creek 305 Comment
  JROH432  Asclepias fascicularis John H. Thomas 1974-6-27 17444 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM57738  Aster chilensis B. Greene 1901-10-20 50 San Mateo Summit of Coast Range Comment
  RSA14211  Aster chilensis C. B. Wolf 1927-1-24 198 San Mateo Near Portola Comment
  RSA97496  Aster chilensis L. S. Rose 1954-8-29 54112 San Mateo Tunitas 30 Comment
  POM288898  Aster radulinus Lyman Benson 1937-7-25 8469 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  SEINET946245  Asteraceae J. A. Reese 1962-1 San Mateo In rear of home of J.J. Reese; 286 Whiskey Hill Road, Woodside 122 Comment
  SEINET946258  Asteraceae L. S. Rose 1948-1 48236 San Mateo Hills W. of Belmont 183 Comment
  SEINET946308  Asteraceae C. B. Wolf 1934-1 6240 San Mateo Coastal bluff, 200 yds. South of Pigeon Pt. Lighthouse 15 Comment
  JROH1984  Astragalus gambelianus A. C. Kimber & Lucile Roush 1918-4-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1987  Astragalus gambelianus Duncan M. Porter 1960-5-5 675 San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 Comment
  CAS-BOT-BC186757  Astragalus gambelianus Lois E. James 1947-4-11 1757 San Mateo Hills back of Redwood City Comment
  CAS-BOT-BC186764  Astragalus gambelianus Ira L. Wiggins 1925-4-11 1624 San Mateo Hillside across from Schroder's. One and one half miles above Stanford University Comment
  UC903409  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo hills back Redwood City; hills back of Redwood City Comment
  SD87780  Astragalus menziesii Frank W. Peirson 1925-9-13 6424 San Mateo Rockaway Beach, in detritus at the foot of cliffs at sea level Comment
  CAS-BOT-BC177967  Astragalus nuttallii var. virgatus V. F. Hesse 1921-7-30 70 San Mateo Salada Comment
  SEINET5326017  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco Comment
  SBBG114453  Astragalus pycnostachyus var. pycnostachyus D. Wilken with E. Painter, M. Wetherwax 2000-7-29 15845 San Mateo edge of State Hwy 1, 0.6 km S of mouth of San Gregorio Crk 40 Comment
  UC42228  Athyrium filix-femina var. cyclosorum McLean San Mateo Pescadero Comment
  CAS-BOT-BC17584  Athysanus pusillus C. F. Baker 1902-4-6 456 San Mateo Crystal Springs Lake. Comment
  JROH1437  Athysanus pusillus John Rawlings 2007-4-1 1064 San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine slope above and south of Big Inlet drainage, 176 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
  UCD54556  Atriplex patula Ellen Dean; Tom Starbuck, Margaret Starbuck 2005-10-16 2746 San Mateo Town of Miramar, N of Half Moon Bay. Along Mirada Rd. on coastal bluff overlooking beach. Comment
  UC463561  Atriplex triangularis L. R. Abrams and I. L. Wiggins 1930-11-13 177 San Mateo junction of Skyline Blvd. and Coast Road near Colma; near Colma Comment
  CDA31516  Avena barbata T. C. Fuller 1969-6-12 18549 San Mateo Ca. 3 km NE of Pescadero, on south facing slope of hillside pasture 0 Comment
  CAS-BOT-BC145955  Avena fatua Ned Cahill 1974-4-30 221 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC146000  Avena fatua Ira L. Wiggins 1975-4-17 22144 San Mateo Northeast side of S.P. right of way, between Willow Road and San Francisquito Creek, Menlo Park. Comment
  CAS-BOT-BC68326  Azolla filiculoides Malcom A. Nobs; S. Galen Smith 1949-8-26 1593 San Mateo Mouth of Pescadero Creek Comment
Read comments
Oct 29 2021
  CAS-BOT-BC98693  Baccharis douglasii George Oberlander 1949-8-20 363 San Mateo Under Willow sout of San Andreas Lake - San Francisco Watershed Reserve 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
  RSA418224  Baccharis douglasii Edith A. Purer 1932-7-18 16266 San Mateo Near Pigeon Point Comment
  SBBG33931  Baccharis glutinosa L. S. Rose 1969-8-22 69099 San Mateo Skyline Blvd and La Honda Rd 609 Comment
  SJSU15816  Baccharis glutinosa John Rawlings, Ken Hickman 2016-7-21 1901 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
  CAS-BOT-BC99505  Baccharis pilularis Elizabeth McClintock 1965-3-28 s.n. San Mateo North Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC99524  Baccharis pilularis W. R. Dudley 1894-12-13 s.n. San Mateo above Preston's, La Honda Road Comment
  POM350441  Baccharis pilularis D. D. Keck 1931-10-5 1283 San Mateo 1 mile north of Salada Beach 91 Comment
  POM54355  Baccharis pilularis A. D. E. Elmer 1903-02 4576 San Mateo Portola Comment
  UCR240609  Baccharis pilularis T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3527 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  JROH5742  Baccharis pilularis subsp. pilularis John Rawlings 2015-11-7 1648 San Mateo Jasper Ridge Biological Preserve, Stanford University; 55 yards up Rd E from its Trail 14 intersection. 122 Comment
  CAS-BOT-BC16636  Barbarea orthoceras Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point. Comment
  JROH1440  Barbarea orthoceras John H. Thomas 1968-3-17 14183 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1442  Barbarea orthoceras John H. Thomas 1973-6-15 16843 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195512  Barbarea orthoceras John H. Thomas 1966-4-22 11567 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  UC10249  Barbarea orthoceras J. Burtt Davy June 21-23, 1893 1147 San Mateo Pilarcitos Lake and Canon Comment
  RSA788847  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7962 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  UC1191421  Bassia hyssopifolia Malcolm A. Nobs and S. Galen Smith 1949-8-27 1617 San Mateo salt marshes e Redwood City Comment
  CAS-BOT-BC75877  Berberis pinnata John H. Thomas 1962-4-24 9846 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC66300  Blechnum spicant W. R. Dudley 1897-1-1 s.n. San Mateo By Buano Cr. above Falls and below Sinnatts Comment
  SBBG33469  Blennosperma nanum var. nanum A. D. E. Elmer -Apr-1903 4521 San Mateo San Bruno Hills Comment
  CAS-BOT-BC100317  Blennosperma nanum var. robustum Phillip C. Wheeler 1965-4-28 s.n. San Mateo Owl's Canyon Comment
  RSA465627  Boisduvalia densiflora var. densiflora L. S. Rose 1942-8-11 42228 San Mateo Hills east of Sharps Park 91 Comment
  SEINET10927832  Bolboschoenus maritimus Lewis S. Rose 1935-8-13 Rose 35565 San Mateo Salada. Salt marsh. 3 Comment
  UCD140047  Bolboschoenus robustus Herbert L. Mason; Verne Grant 1946-8-28 13077 San Mateo mouth of Tolay Creek. Comment
Read comments
Aug 16 2015
  POM133483  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo La Honda. Comment
  CAS-BOT-BC95340  Bowlesia incana Miss E. Cannon 1898-3-26 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC95342  Bowlesia incana Walter Knight; Irja Knight 1965-5-9 1099 San Mateo Devil's Arroyo, San Bruno Mountain 274 Comment
  CAS-BOT-BC95343  Bowlesia incana Walter Knight; Irja Knight 1965-3-28 1107 San Mateo Trillium Gulch, San Bruno Mountain Comment
  CAS-BOT-BC417700  Boykinia occidentalis Josephine D. Randall 1907-7-28 361 San Mateo Iverson's near Peter's Creek Comment
  JROH4855  Brachypodium distachyon John Hunter Thomas 1988-6-2 24509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA36479  Brachypodium sylvaticum Ellen Gartside 2011-7-14 s.n. San Mateo Woodside; Old La Honda Rd., on hill above water tank. Comment
  CAS-BOT-BC28048  Brassica fruticulosa Elizabeth McClintock; Paul Reeberg 1989-4-10 s.n. San Mateo Guadalupe Hills. Near horse corral. Comment
  POM272569  Brassica nigra Lyman Benson 1939-6-24 9676 San Mateo Menlo Park. 30 Comment
  CAS-BOT-BC36668  Brassica oleracea John H. Thomas 1966-5-28 11644 San Mateo In central part of Menlo Park near Post Office. Comment
  JROH1465  Brassica rapa John H. Thomas 1977-2-17 18464 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Whiskey Hill and Sand Hill Roads Comment
  CAS-BOT-BC36791  Brassica rapa Reed Clark Rollins 1941-2-23 2940 San Mateo 10 miles south of San Francisco. Comment
  JROH4879  Briza minor John H. Thomas 1963-5-15 10090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4885  Briza minor John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4886  Briza minor John Hunter Thomas 1981-4-23 20469 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA149176  Briza minor John H. Thomas 1961-5-13 9344 San Mateo Coastal sand dunes at Franklin Point. Comment
  SEINET10868322  Briza minor Alan A. Beetle 1941-4-20 Beetle 1738 San Mateo Near San Carlos, rich heavy loam, in open field. Comment
  SEINET3884835  Brodiaea coronaria var. macropoda Lewis S. Rose 1970-4-8 70024 San Mateo Black Mountain W. of San Mateo.; 0 122 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
  JROH4588  Brodiaea terrestris subsp. terrestris John H. Thomas 1956-4-7 5624 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  CAS-BOT-BC483173  Brodiaea terrestris subsp. terrestris C. F. Baker 1902-4-6 462 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC483181  Brodiaea terrestris subsp. terrestris Le Roy Abrams 1902-5-4 2427 San Mateo Near Woodside Comment
  CAS-BOT-BC144140  Bromus W. R. Dudley 1899-6-11 s.n. San Mateo San Francisco. Near Railroad Station house, Sutro Heights. Comment
  JROH4969  Bromus berteroanus John Rawlings 2010-5-1 1063 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few feet south of Road F. Also seen around rocky outcrop at Brewer onion site the same day. 178 Comment
  UCD57754  Bromus berteroanus Margaret Joy Marshall 1977-4-9 s.n. San Mateo San Mateo. Canada and Edgewood Rd. Comment
  CAS-BOT-BC227633  Bromus carinatus Peter Rubtzoff 1977-4-16 8950 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  POM286978  Bromus carinatus Lyman Benson 1930-4-17 2079 a San Mateo Stanford University. Corte Madera Creek. 122 Comment
  SEINET3128654  Bromus carinatus L. R. Abrams 1902-5-11 2462 San Mateo Carplot Springs Comment
  UCD58019  Bromus carinatus L. R. Abrams 1902-5-11 2X 62 San Mateo Crystal Springs. Comment
  CAS-BOT-BC148993  Bromus carinatus var. carinatus John H. Thomas 1974-5-9 17331 San Mateo San Pedro Valley. Northern part of county, inland from Pacifica. 152 Comment
  CAS-BOT-BC149012  Bromus carinatus var. carinatus Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain. Along road on top of mountain. Comment
  CAS-BOT-BC149013  Bromus carinatus var. carinatus Walter Knight; Irja Knight 1964-3-15 s.n. San Mateo San Bruno Mountain. Colma Canyon. South ridge. 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-BC148768  Bromus carinatus var. marginatus Catherine A. Toschi 1963-2-23 63 :29 San Mateo North slope San Bruno Mountains above Crocker Avenue. 152 Comment
  UC1537360  Bromus carinatus var. maritimus Gordon H. True Jr. 1937-4-3 621 San Mateo near coast of Salada Beach 15 Comment
  CAS-BOT-BC155720  Bromus diandrus George Oberlander 1949-5-13 188 San Mateo San Francisco Watershed Reserve. San Andreas Valley. Comment
  JROH4909  Bromus diandrus John H. Thomas 1967-4-20 12704 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC155130  Bromus hordeaceus John H. Thomas 1961-5-13 9342 San Mateo Franklin Point. Comment
  CAS-BOT-BC155136  Bromus hordeaceus Ned Cahill 1974-4-30 222 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  JROH4918  Bromus hordeaceus John H. Thomas 1963-5-15 10093 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4930  Bromus hordeaceus John Rawlings 2010-4-28 1092 San Mateo Jasper Ridge Biological Preserve, Stanford University; on slope south of the visitor parking lot 119 Comment
  JROH5614  Bromus hordeaceus John Rawlings 2014-4-11 1217 San Mateo Jasper Ridge Biological Preserve, Stanford University; in road G in hard-packed dirt, immediately north of its intersection with Rd. J. 105 Comment
  JROH4932  Bromus laevipes John H. Thomas 1967-5-12 12865 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA181249  Bromus laevipes John H. Thomas 1961-5-7 9256 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  POM285930  Bromus madritensis Lyman Benson 1935-5-5 6544 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  JROH4943  Bromus madritensis subsp. madritensis John Hunter Thomas 1980-5-1 19913 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4947  Bromus madritensis subsp. rubens John H. Thomas 1965-4-28 10594 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4951  Bromus madritensis subsp. rubens John Hunter Thomas 1989-5-11 24740 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC162228  Bromus maritimus Roxana S. Ferris 1920-4-27 189 San Mateo Santa Cruz Mountain Peninsula. Ano Nuevo Point. 0 Comment
  RSA320908  Bromus rubens Robert A. Norris 1984-3-21 4655 San Mateo Blue Blossom Hill, San Bruno Mts. 366 Comment
  SEINET3923291  Bromus rubens Robert A. Norris 1984-3-21 4655 San Mateo Blue Blossom Hill, San Bruno Mts.; 0 366 Comment
  CHSC22764  Cakile edentula Robert A. Schlising; Glenn Keator 1962-2-3 2048 San Mateo Coast Ranges. Along area at Gazos Creek and Highway 1. Comment
  SD129649  Cakile maritima Donald G. Nelson 1938-7-28 581 San Mateo Moss Beach Comment
  RSA30868  Cakile maritima R. C. Rollins 1942-11-4 3032 San Mateo Miramar Beach, about 5 miles N of Half Moon Bay. Comment
  CAS-BOT-BC36954  Cakile maritima var. maritima Reed Clark Rollins 1942-11-4 3032 San Mateo Miramar Beach, about 5 miles north of Half Moon Bay. Comment
  POM199096  Calamagrostis nutkaensis A. D. E. Elmer 1903-05 5033 San Mateo San Pedro Comment
  RSA17938  Calamagrostis nutkaensis C. B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo Pescadero. Comment
  UC204153  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5033 San Mateo San Pedro Comment
  CAS-BOT-BC438532  Calandrinia ciliata Le Roy Abrams 1902-5-4 2406 San Mateo Woodside Comment
  CAS-BOT-BC438539  Calandrinia ciliata John H. Thomas 1974-4-11 17128 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside. 152 Comment
  JROH1633  Callitriche marginata John H. Thomas 1968-3-17 14193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1637  Callitriche marginata John H. Thomas 1971-4-25 15780 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1640  Callitriche marginata John H. Thomas 1973-4-20 16578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1642  Callitriche marginata Paul Heiple 2010-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along side of Rd E Comment
  CAS-BOT-BC492166  Calochortus albus Fred Hemphill 1973-5-14 802 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC492214  Calochortus albus Fred Hemphill 1973-5-6 757 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH4608  Calochortus albus John Hunter Thomas 1981-4-30 20520 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA292629  Calochortus albus Lyman Benson 1930-5-12 2120 San Mateo San Mateo County: Lake Searsville. 152 Comment
  UCR11981  Calochortus albus Blanche Clear 1938-5-22 s.n. San Mateo San Francisco Bay Region, dirt road in Hidden Valley[Pulgas Creek Valley?] between Redwood City and Belmont 61 Comment
  JROH4619  Calochortus argillosus John H. Thomas 1962-5-31 9893 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4623  Calochortus argillosus John H. Thomas 1974-6-30 17458 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4624  Calochortus argillosus John H. Thomas 1975-6-5 17940 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  JROH4631  Calochortus luteus John H. Thomas 1971-5-30 15960 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC3425  Calochortus luteus Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  CAS-BOT-BC491982  Calochortus luteus W. R. Dudley 1894-5-18 343 San Mateo From Woodside to Crystal Spr. Lake. Comment
  POM196562  Calochortus luteus G. C. Kimber, Lucille Roush 1920-5-17 s.n. San Mateo Santa Cruz Mountain Peninsula: near Los Trancos Creek Comment
  POM258692  Calochortus luteus Marion Ownbey, Ruth P. Ownbey 1938-7-7 1699 San Mateo Santa Cruz Mountains, above Searsville Lake Comment
  JEPS23925  Calochortus tolmiei Le Roy Abrams 1902-5-20 2473 San Mateo Kings Mountain Comment
  CAS-BOT-BC132540  Calochortus umbellatus M N. Paulson 1915-4-10 s.n. San Mateo Kings Mountain 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
  SEINET12044555  Calochortus venustus L. S. Rose 1932-1 32327 San Mateo Redwood City Comment
  CAS-BOT-BC270669  Calycadenia multiglandulosa L. S. Rose 1937-9-21 37658 San Mateo Emerald Lake, W of Redwood City 182 Comment
  CAS-BOT-BC270670  Calycadenia multiglandulosa L. S. Rose 1956-7-2 56120 San Mateo Emerald Lake, hills W of Redwood City 182 Comment
  JROH557  Calycadenia multiglandulosa John H. Thomas 1958-11-22 7506 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH572  Calycadenia multiglandulosa John Hunter Thomas 1986-6-9 24094 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC662579  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo hills w Redwood City; Emerald Lake 120 Comment
  POM204003  Calycadenia multiglandulosa subsp. cephalotes L. S. Rose 1934-5-23 34278 San Mateo Emerald Lake. Comment
  CAS-BOT-BC224655  Calystegia purpurata subsp. purpurata Theo. C. Zschokke 1903-7-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Goat Ranch Road, Corte de [Corte] Madera Cr. Comment
  CAS-BOT-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
  RSA60634  Calystegia soldanella I. L. Wiggins 1950-5-20 12351 San Mateo Pescadero Beach Comment
  CAS-BOT-BC436448  Calystegia subacaulis Ned Cahill 1974-4-18 120 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC436450  Calystegia subacaulis L. R. Abrams 1902-5-4 2399 San Mateo Woodside Comment
  JROH1845  Calystegia subacaulis subsp. subacaulis John H. Thomas 1967-5-10 12858 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1846  Calystegia subacaulis subsp. subacaulis John H. Thomas 1968-4-19 14300 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM32101  Camissonia graciliflora L. R. Abrams 1917-3-15 6396 San Mateo Woodside - Crystal Springs Road, 2 miles north of Woodside Comment
  SD38657  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1934-8-14 5916 San Mateo Half Moon Bay. Comment
  SEINET10905837  Campanula griffinii Thomas Thomas 22332 San Mateo Stanford University, about five miles sw of the downtown section of Palo Alto. Edge of chaparral Comment
  POM204507  Campanula prenanthoides I. L. Wiggins 1929-7-4 3779 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  SEINET10939009  Campanula prenanthoides William R. Dudley 1894-7-7 Dudley s.n. San Mateo Bear Gulch Comment
  CAS-BOT-BC37676  Cardamine californica A. D. E. Elmer 1903-4-1 4468 San Mateo Portola. Comment
  CAS-BOT-BC37688  Cardamine californica P. H. Arnaud Jr. 1967-5-6 s.n. San Mateo Redwood Roadside Park on La Honda Road. Comment
  CAS-BOT-BC37985  Cardamine oligosperma John H. Thomas 1961-5-14 9372 San Mateo San Francisco Watershed Reserve. Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. 152 Comment
  JEPS127781  Cardamine oligosperma Adam C. Schneider with C. Matt Guilliams 2014-3-9 42 San Mateo 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
  UCSC007728  Cardamine oligosperma Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SJSU15404  Cardionema ramosissimum Toni Corelli 2010-4-9 669 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica, CA 36 Comment
  CAS-BOT-BC384844  Cardionema ramosissimum Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. In old quarry in Colma Canyon Comment
  JROH583  Carduus tenuiflorus Suzanne Biossat 1943-5-7 75 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18451  Carex Carl B. Wolf 1927-6-29 556 San Mateo South of Pebble Beach near Pescadero Comment
  CAS-BOT-BC17849  Carex amplifolia W. R. Dudley 1906-6-8 s.n. San Mateo The Santa Cruz Mountain Peninsula. In Squealer Gulch above water trough. Comment
  SEINET7549670 Image available Carex amplifolia Lewis S. Rose 1933-6-23 33250 San Mateo Kings Mountain. 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
  JROH4321  Carex bolanderi Carol Zabel, Toni Corelli 2005-6-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 13 south of Leonard's Bridge. 106 Comment
  CAS-BOT-BC34076  Carex brevicaulis Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5250 San Mateo Tunitas. Comment
  UCD166147  Carex brevicaulis Jack Major; M. Forde and S. Bamberg 1962-4-3 732 San Mateo Ano Nuevo Point. (Exact location unknown. Coordinates estimated by label maker). Comment
  SBBG39550  Carex brevicaulis J. T. Howell 1965-3-29 41035 San Mateo W end of summit ridge of San Bruno Mtn 396 Comment
  JROH4334  Carex densa John Rawlings, Carol Zabel 2005-6-13 0902 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Trail 1 (creek side) before entering wooded area and Santa Barbara sedge area walking downstream. 87 Comment
  UC823332  Carex densa John Thomas Howell 1938-5-1 13786 San Mateo near South San Francisco Comment
  CAS-BOT-BC18925  Carex densa Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountains. Crocker Hills. Comment
  CAS-BOT-BC19944  Carex exsiccata W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Between Woodside and Crystal Springs. Comment
  CAS-BOT-BC146604  Carex gynodynama Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5255 San Mateo Pescadero Comment
  CAS-BOT-BC21815  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-26 6059 San Mateo Near Pescadero. Comment
  CAS-BOT-BC119443  Carex nudata Charles Piper Smith 1908-4-13 1399 San Mateo Stanford Univ. San Francisquito Creek. Comment
  CAS-BOT-BC119344  Carex obnupta J. H. Thomas 1959-4-4 7658 San Mateo Ca 0.7 mi S of Gazos Creek. Ca 6.5 mi S from Pescadero. 45 Comment
  CAS-BOT-BC176407  Carex obnupta Peter Rubtzoff; Roman Gankin 1975-5-21 7965 A San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA788837  Carex obnupta Peter Rubtzoff 1978-3-18 9173 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCR280162  Carex subbracteata Peter Rubtzoff 1976-6-30 8707 San Mateo Central Coast, San Bruno Mountains. 'Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence 220 Comment
  UCD164096  Carex subbracteata Peter Rubtzoff 1978-5-18 9171 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
  JROH4365  Carex tumulicola John Hunter Thomas 1978-4-8 19059 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4366  Carex tumulicola John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC836649  Carex tumulicola W. R. Dudley 1910-5-26 San Mateo near Black Mt. (Coal Mine Ridge) Comment
  JROH4371  Carex tumulicola W. Lennihan 1989-5-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12 (Mapache), left side of trail in dense section before coming out to meadow. Comment
  CAS-BOT-BC230111  Carpobrotus chilensis Daniel Cohen 1953-5-9 96 San Mateo Sea cliffs facing ocean at Pebble Beach Comment
  UCSC007729  Carpobrotus chilensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SJSU7602  Carpobrotus edulis E. P. Ryan 1965-4-25 San Mateo 1 mi N of Pigeon Point Lighthouse Comment
  CDA19907  Carthamus lanatus L. Kuwahara 2002-6-17 PDR 065011 San Mateo San Francisco Bay Area; at 12445 Old La Honda Rd. 0 Comment
  JROH5852  Castilleja John H. Thomas 1978-4-20 19090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC249185  Castilleja affinis James McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  POM15460  Castilleja affinis C. F. Baker 1902-5-1 777 San Mateo Crystal Springs Lake. Comment
  SJSU667  Castilleja affinis A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge Comment
  JEPS6916  Castilleja affinis subsp. affinis Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4741 San Mateo about 0.75 mi w Skyline Boulevard (upper part of Tunitas Canyon road, w slopes of Kings Mountain); Kings Mountain 579 Comment
  JROH3934  Castilleja affinis subsp. affinis Joseph J. Schweitzer 1951-4-21 36 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH3942  Castilleja affinis subsp. affinis John H. Thomas 1974-4-25 17213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1301181  Castilleja affinis subsp. affinis Helen K. Sharsmith 1963-2-16 5147 San Mateo Thornton Beach; San Francisco Bay Region Comment
  JEPS103892  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1991-7-3 7860 San Mateo 1.8 mile SW from junction of Interstate 280 and rt. 92 on rt. 92 Comment
  UCSC006159  Castilleja ambigua Randall Morgan 1999-7-12 3588 San Mateo ca. 1+ mile north of Bean Hollow State Beach Comment
  JEPS7866  Castilleja ambigua subsp. ambigua Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4556 San Mateo 3.3 mi s Pescadero; Arroyo de los Frijoles Comment
  RSA408815  Castilleja ambigua subsp. ambigua Francis W. Pennell, D. D. Keck 1940-5-15 25427 San Mateo Route 101. Burlingame. 0 Comment
  JROH3966  Castilleja attenuata John Hunter Thomas 1982-4-23 20838 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area Comment
  JROH3971  Castilleja attenuata Carol Zabel 1989-4-19 9 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD40891  Castilleja densiflora Nancy Dickenson 1983-4-23 117 San Mateo Jasper Ridge. Stanford Biological Preserve within 1 mile of Westridge Road entrance. Comment
  JEPS86228  Castilleja densiflora subsp. densiflora L. R. Heckard 1970-5-5 2453 San Mateo Brisbane, ne edge of San Bruno Mountain San Bruno Mountain Comment
  JEPS20314  Castilleja densiflora subsp. densiflora Lewis S. Rose 1956-5-7 56064 San Mateo w of San Mateo (Skyline Blvd) 182 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
  POM176909  Castilleja foliolosa L. R. Abrams 1904-4-1 10 San Mateo Near Crystal Springs Lake, Santa Cruz Mts. Comment
  CAS-BOT-BC243829  Castilleja latifolia Otto M. Sokol 1953-5-9 86 San Mateo Just north of Pescadero Creek on coast road. Comment
  CAS-BOT-BC243832  Castilleja latifolia Walter Knight 1964-9-14 829 San Mateo Peak Mt., Montara Range Comment
  CAS-BOT-BC243839  Castilleja latifolia John Thomas Howell 1933-4-9 10964 San Mateo Granada Comment
  JEPS103897  Castilleja latifolia T. I. Chuang and F. M. Chuang 1991-6-29 7851 San Mateo Ca. 1/3 mile south of Pescadero State Beach Comment
  SEINET7097932  Castilleja latifolia A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  JROH4005  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1982-4-30 20879 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC535783  Castilleja rubicundula subsp. lithospermoides Elmer I. Applegate 1895-5-11 392 San Mateo near Searsville Comment
  SD37771  Castilleja rubicundula subsp. lithospermoides Edith A. Purer 1933-5-25 3652 San Mateo Spring Valley Lakes Comment
  JEPS6922  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4554 San Mateo between La Honda Creek and Pescadero Creek (summit of divide, on the road from La Honda and San Mateo County Memorial Redwood Park) 304 Comment
  JEPS6953  Castilleja wightii Peter H. Raven 1950-4-30 1989 San Mateo Montara Mts. 24 Comment
  JEPS85726  Castilleja wightii L. R. Heckard 1964-6-24 1393 San Mateo San Bruno Mt.; slope below (n of) transmitting stations 304 Comment
  POM15458  Castilleja wightii C. F. Baker 1902-4-12 508 San Mateo San Gregorio. Comment
  UC198264  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore Railroad Comment
  UC198390  Castilleja wightii Katharine Brandegee 1917-7-15 San Mateo Moss Beach Comment
  JEPS60428  Castilleja wightii T. I. Chuang with F. M. Chuang 1969-6-22 6668 San Mateo 2.8 mi s Pescadero Point (on Highway 1) Comment
  JEPS86182  Castilleja wightii L. R. Heckard 1988-5-18 6676 San Mateo ca 0.5 mi s Skyline Blvd. junction with Route 92 to Half Moon Bay Comment
  CAS-BOT-BC39380  Caulanthus lasiophyllus Roxana S. Ferris 1921-4-7 2150 San Mateo Santa Cruz Mountain Peninsula. San Bruno Mountain. 182 Comment
  CAS-BOT-BC39382  Caulanthus lasiophyllus Fred Hemphill 1973-4-15 685 San Mateo North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC39389  Caulanthus lasiophyllus Ned Cahill 1974-4-29 170 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CDA24867  Caulanthus lasiophyllus D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JEPS127814  Caulanthus lasiophyllus Adam C. Schneider with C. Matt Guilliams 2013-4-7 78 San Mateo Comment
  JROH1529  Caulanthus lasiophyllus John Hunter Thomas 1981-4-27 20509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC39383  Caulanthus lasiophyllus Paul Arnaud 1941-5-3 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  CAS-BOT-BC40394  Caulanthus lasiophyllus Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountains. Crocker Hills. Comment
  POM222808  Ceanothus cuneatus var. dubius S. S. Berry 1909-2-24 s.n. San Mateo San Francisco Creeks. 30 Comment
  CAS-BOT-BC50042  Ceanothus incanus Walter Knight; James B. Roof 1965-5-9 1136 San Mateo Brotherhood Way - Daly City Comment
  JROH3528  Ceanothus oliganthus var. sorediatus Arthur Spiegler 1952-4-12 12 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM282997  Ceanothus oliganthus var. sorediatus Lyman Benson 1937-7-25 8467 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  CAS-BOT-BC63456  Ceanothus palmeri A. D. E. Elmer 1903-5-1 4479 San Mateo Portola. Comment
  CAS-BOT-BC51851  Ceanothus papillosus W. R. Dudley 1902-5-17 s.n. San Mateo Kings Mountain Road Comment
  RSA136269  Ceanothus papillosus C. F. Baker 1902-5-10 803 San Mateo Kings Mountain. Comment
  UC1174505  Ceanothus papillosus LeRoy Abrams 1902-5-20 2412 San Mateo King's Mountain Comment
  UC79825  Ceanothus papillosus var. papillosus C. F. Baker 1902-5-10 803 San Mateo Kings Mountain Comment
  CAS-BOT-BC52298  Ceanothus thyrsiflorus Miss O. Boring 1897-8-25 s.n. San Mateo Near Kings Mt. House, Kings Mountain Comment
  CAS-BOT-BC52307  Ceanothus thyrsiflorus Josephine D. Randall 1907-7-23 321 San Mateo near Crystal Springs Lake Comment
  CAS-BOT-BC52311  Ceanothus thyrsiflorus H. A. Borthwick 1920-4-28 s.n. San Mateo Crystal Springs Lake Comment
  POM267961  Ceanothus thyrsiflorus Jens Clausen 1941-7-1 1873 San Mateo Summit of Montara Mtn 274 Comment
  RSA19208  Ceanothus thyrsiflorus R. S. Woglum 1935-5-25 1152 San Mateo Skyline Drive, S of San Francisco Comment
  RSA122365  Ceanothus thyrsiflorus N. K. Carlson 1935-7-5 60 San Mateo 3 miles S of Bellvale. 91 Comment
  SEINET12209977  Ceanothus thyrsiflorus Unknown 1932-1 8972 San Mateo Comment
  UCD130007  Centaurea calcitrapa P. B. Kennedy 1916-5-7 s.n. San Mateo vacants lots around Burlingame. Comment
  POM54379  Centaurea melitensis A. D. E. Elmer 1903-06 4281 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC277122  Centaurea melitensis A. D. E. Elmer 1903-6-1 4281 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC277231  Centaurea solstitialis Ned Cahill 1974-7-14 351 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JEPS85194  Centaurium muehlenbergii Roy E. Buck and Randall A. Morgan 1984-6-17 508 San Mateo ca 6 km sw Redwood City (in triangle of Edgewood Rd, Canada Rd, and Interstate 280, ca 100 m w of I-280, s of Edgewood Park trail underpass, strip along and near watercourse); San Francisco Watershed Reserve 158 Comment
  CHSC56085  Centaurium tenuiflorum Jan M. Karaz 1979-5-27 60 San Mateo 3 mi east of Hwy 280 intersection with Woodside Road, 1.2 mi east of Woodside on Mountain Home Road. 7 Comment
  UC35457  Centaurium trichanthum W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  POM287523  Centaurium venustum Lyman Benson 1930-4-17 2068 San Mateo Stanford University. 122 Comment
  JEPS23530  Centranthus ruber J. H. Thomas 1958-11-9 7503 San Mateo along El Camino Real at northern end San Carlos 30 Comment
  UC149594  Centromadia pungens subsp. pungens L. R. Abrams 1903-9-26 4017 San Mateo Menlo Park Comment
  UC1598488  Centromadia pungens subsp. pungens John Thomas Howell 1956-9-19 31877 San Mateo 2.3 mi s of Lake Merced; Skyline Blvd. Comment
  CAS-BOT-BC279327  Centromadia pungens subsp. pungens Roxana Stinchfield 1915-9-19 250 San Mateo Santa Cruz Mountain Peninsula. Fields near Salt Marshes, Palo Alto Comment
  SBBG35987  Centromadia pungens subsp. pungens L. S. Rose 1965-9-20 San Mateo Burlingame, Trousdale Dr and California Drive 9 Comment
  UC702541  Centromadia pungens subsp. pungens L. S. Rose 1941-10-10 41463 San Mateo along the Bayshore Boulevard 3 Comment
  CAS-BOT-BC388393  Cerastium glomeratum Margaret A. Barry 1937-5-15 89 San Mateo Coal Mine Ridge Comment
  POM139639  Cercocarpus betuloides A. D. E. Elmer 1903-05 4530 San Mateo Searsville Lake Comment
  CAS-BOT-BC135470  Cercocarpus betuloides var. betuloides W. R. Dudley 1902-11-2 s.n. San Mateo Bank os San Francisquito Cr. half mile above Adelanta Vill bridge. Comment
  JROH3620  Cercocarpus betuloides var. betuloides John H. Thomas 1961-6-14 9541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3622  Cercocarpus betuloides var. betuloides John H. Thomas 1961-6-14 9541 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JEPS59770  Chenopodium chenopodioides W. L. Jepson 1923-10-18 10258 San Mateo hills w Colma (swale near ocean) 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-BC246303  Chloropyron maritimum subsp. palustre J. W. Congdon 1881-5-24 s.n. San Mateo 14 mines south of San Francisco Comment
  CDA38625  Chondrilla juncea J. Beall 2012-7-27 PDR# 410 P06055583 San Mateo San Carlos; west side of Edmonds Road, near Crestview Drive and Edgewood Road. 0 Comment
  UC125349  Chorizanthe robusta Katharine Brandegee June 1905 San Mateo Colma Comment
  CAS-BOT-BC246284  Chorizanthe robusta var. robusta Katharine Brandegee 1905-6-1 s.n. San Mateo Unspecified Comment
  CAS-BOT-BC36401  Chrysolepis chrysophylla W. R. Dudley 1893-5-27 s.n. San Mateo Road from Woodside to Kings Mt. Comment
  CAS-BOT-BC389727  Chrysolepis chrysophylla M. K. Wicksten 1971-7-12 63 San Mateo Huddart Pk. Comment
  RSA476618  Chrysolepis chrysophylla L. H. Jones 1909-3-13 s.n. San Mateo On King's Mountain Road, Stanford University. 762 Comment
Read comments
Sep 22 2011
  RSA187410  Cicendia quadrangularis John H. Thomas 1966-4-2 11545 San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Along road at the Searsville end. Comment
  CDA21620  Cirsium brevistylum D. G. Kelch, B. G. Baldwin 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  CAS-BOT-BC100939  Cirsium fontinale var. fontinale John Thomas Howell 1939-6-16 14743 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC100946  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-6-1 4292 San Mateo Crystal Springs Lake Comment
  OBI16742  Cirsium fontinale var. fontinale Lewis S. Rose 1959-1 San Mateo Comment
  UC894974  Cirsium fontinale var. fontinale John Thomas Howell 1939-6-16 14743 San Mateo Crystal Springs Lake Crystal Springs Lake (along brooklet) Comment
  UCD130570  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo east shore of Upper Crystal Springs Lake, 0.7 mile south of road across lake. Comment
  SEINET14157453  Cirsium fontinale var. fontinale Unknown San Mateo Comment
  SEINET5506233  Cirsium fontinale var. fontinale Lewis S. Rose San Mateo Comment
  UC30815  Cirsium occidentale var. venustum J. Burtt Davy 1893-6-17 815 San Mateo Belmont Comment
  CAS-BOT-BC280503  Cirsium quercetorum Alice Eastwood 1912-6-3 204 San Mateo Granada Comment
  CAS-BOT-BC280509  Cirsium quercetorum John H. Thomas 1961-5-14 9378 San Mateo Just north of dam on San Mateo Creek 121 Comment
  CAS-BOT-BC280529  Cirsium quercetorum Alice Eastwood; John Thomas Howell 1938-6-26 6078 San Mateo Crystal Springs Lake Comment
  JEPS27347  Cirsium quercetorum Rimo Bacigalupi with L. Heckard and Jim Roof 1961-4-24 7607 San Mateo meadow at summit of divide between Colma Canyon and Guadulupe Valley (just n of San Bruno Mt.); Colma Canyon, Guadalupe Valley, San Bruno Mt. 205 Comment
  OBI62652  Cirsium quercetorum Casey J. Stewman 2003-6-2 s.n. San Mateo Near jctn of hwy 280 and hwy 92. More [plants] found on San Francisco Water District open space lands adj to project site. Comment
  UC306688  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  UC895026  Cirsium quercetorum S. F. Blake 1927-7-8 10006 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280502  Cirsium quercetorum John Thomas Howell 1939-6-16 14739 San Mateo Skyline Boulevard 4 miles w. of Burlingame Comment
  CAS-BOT-BC280522  Cirsium quercetorum Lewis S. Rose 1934-5-15 34258 B San Mateo Crystal Springs Lake Comment
  JROH639  Cirsium vulgare John H. Thomas 1974-8-3 17499 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11834687  Cirsium vulgare E. H. Graham 1931-1 6927 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  UCD130823  Cirsium vulgare Otto T. Solbrig 1958-8-3 2920 San Mateo near road on Highway 5, Crystal Spring Lake. 30 Comment
  HSC59099  Clarkia cylindrica Clark L. Miller 1978-6-15 265 San Mateo 6 mi. S of Half Moon Bay, off Hwy. 1, on Verde Rd. 61 Comment
  CAS-BOT-BC164565  Clarkia purpurea subsp. viminea Ned Cahill 1974-5-18 284 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH3009  Clarkia purpurea subsp. viminea John H. Thomas 1967-5-31 12935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC165167  Clarkia rubicunda Margaret A. Barry 1937-6-22 159 San Mateo Exposed slopes on Coal Mine Ridge Comment
  CAS-BOT-BC165175  Clarkia rubicunda Hester R. Davis 1920-6-1 180 San Mateo Back of Redwood City Comment
  JEPS82913  Clarkia rubicunda Roy E. Buck, Randall A. Morgan 1983-6-7 335 San Mateo in triangle of Edgewood and Canada Rds. and Hwy. I-280, n of small watercourse San Francisco Watershed Reserve 158 Comment
  JROH3032  Clarkia rubicunda John Hunter Thomas 1983-7-7 22815 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  SD39467  Clarkia rubicunda Edith A. Purer 1932-7-16 San Mateo Near Halfmoon Bay. Comment
  UC422840  Clarkia rubicunda W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  UC625368  Clarkia rubicunda Ira L. Wiggins 1938-7-9 8933 San Mateo about 1/2 mi n Light House; Pigeon Point Comment
  UCR3564  Clarkia rubicunda Wm. Horn Jr. 1963-8-26 630826- 03 San Mateo 1.5 mi. east of Tunitas Beach, on Tunitas Creek Road 76 Comment
  CAS-BOT-BC165126  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165130  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165143  Clarkia rubicunda W. Knight; I. Knight 1965-6-20 s.n. San Mateo Crystal Cave Canyon Comment
  CAS-BOT-BC165151  Clarkia rubicunda Phillip C. Wheeler 1965-7-8 s.n. San Mateo Quarry Canyon Comment
  UC1279916  Clarkia rubicunda Peter H. Raven 1957-6-30 11017 San Mateo 3.0 mi from State Highway 5 (Skyline Boulevard) (on road to Portola State Park) Comment
  UC917340  Clarkia rubicunda W. A. Harvey and J. M. Tucker 1948-6-29 1709 San Mateo just w Highway 5 (Skyline Boulevard) (beside road to Portola State Park) Comment
  CAS-BOT-BC165599  Clarkia unguiculata A. D. E. Elmer 1903-6-1 4293 San Mateo Alpine School House Comment
  CAS-BOT-BC165601  Clarkia unguiculata Daniel Cohen 1953-6-5 108 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC165604  Clarkia unguiculata Margaret A. Barry 1937-6-22 166 San Mateo On Coal Mine Ridge Comment
  JROH3330  Claytonia exigua subsp. exigua D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3332  Claytonia exigua subsp. exigua John H. Thomas 1969-4-20 14895 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5705  Claytonia exigua subsp. exigua John Rawlings 2015-3-15 1353 San Mateo Jasper Ridge Biological Preserve, Stanford University; Rd D 113 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
  JROH5734  Claytonia parviflora subsp. parviflora John Rawlings 2015-4-5 1654 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  UC7902  Claytonia parviflora subsp. parviflora J. Burtt Davy 1893-6-17 793 San Mateo Belmont Comment
Read comments
Sep 4 2011
  CAS-BOT-BC439591  Claytonia parviflora subsp. parviflora John H. Thomas 1963-5-20 10097 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  SEINET5544279  Claytonia perfoliata H. S. Gentry 1931-1 12 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  JROH3343  Claytonia perfoliata subsp. perfoliata John H. Thomas 1963-5-15 10088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3347  Claytonia perfoliata subsp. perfoliata John H. Thomas 1967-4-28 12725 San Mateo Jasper Ridge Biological Preserve, Stanford University; near "Oaks" Comment
  JROH3351  Claytonia perfoliata subsp. perfoliata John Hunter Thomas 1982-4-23 20837 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area Comment
  CAS-BOT-BC91485  Clematis lasiantha C. F. Baker 1902-4-12 499 San Mateo La Honda. Comment
  JROH3416  Clematis lasiantha John H. Thomas 1979-4-12 19450 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3420  Clematis lasiantha John Hunter Thomas 1988-4-7 24375 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5686  Clematis lasiantha John Rawlings 2015-3-3 1310 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 9. 194 Comment
  SEINET12087591  Clematis lasiantha L. R. Abrams 1914-1 5076 San Mateo Woodside Comment
  JROH3422  Clematis ligusticifolia Toni Corelli 2007-8-28 336 b San Mateo Jasper Ridge Biological Preserve, Stanford University; below Trail 2, above San Francisquito Creek along embankment 71 Comment
  JROH2873  Clinopodium douglasii John H. Thomas 1970-1-1 15499 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2874  Clinopodium douglasii John H. Thomas 1971-5-30 15954 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2877  Clinopodium douglasii John H. Thomas 1973-6-15 16845 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2880  Clinopodium douglasii John Hunter Thomas 1985-5-22 23678 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389745  Clinopodium douglasii M. Danielson 1965-5-15 s.n. San Mateo Western extension of Edgewood Road - Redwood City Comment
  UC729849  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 2 mi from Pescadero (on Alpine Creek); Alpine Creek Comment
  CAS-BOT-BC499371  Clintonia andrewsiana K. Hofpaugh 1929-5-11 210 San Mateo Redwood forest 3 miles east of La Honda Comment
  CAS-BOT-BC499374  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 2 mi. from Pescadero on Alpine Creek Comment
  RSA18200  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 7.5 miles from Pescadero on Alpine Creek Road. Comment
  RSA18322  Collinsia heterophylla Carl B. Wolf 1929-5-17 3714 San Mateo 1 mile W of Skyline Drive on Alpine Road. Comment
  CAS-BOT-BC240920  Collinsia multicolor Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. On north side of mountain 1/2 mi. east of Brisbane power lines Comment
  CAS-BOT-BC240926  Collinsia multicolor Blanche Clear 1938-5-22 s.n. San Mateo On road to Emerald Lake Comment
  CAS-BOT-BC240936  Collinsia multicolor Miss E. Cannon No date on label s.n. San Mateo Hills near the Bay, South San Francisco Comment
  JROH4021  Collinsia sparsiflora var. collina John Hunter Thomas 1983-4-14 21402 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5706  Collinsia sparsiflora var. collina John Rawlings 2015-3-15 1349 A San Mateo Jasper Ridge Biological Preserve, Stanford University 110 Comment
  RSA653552  Collomia heterophylla George K. Helmkamp, E. A. Helmkamp 1999-6-28 4978 San Mateo Pescadero Rd just N of Loma Mar. 107 Comment
  JROH213  Conium maculatum John Hunter Thomas 1980-5-6 19932 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC286204  Conyza canadensis Peter Rubtzoff; Patricia Fallon 1987-8-26 9845 San Mateo San Bruno Mountains. Main part of Saddle area Comment
  POM15833  Cordylanthus maritimus subsp. palustris Jos. Burtt Davy 1893-6-17 773 San Mateo Balmont Comment
  RSA51367  Cordylanthus rigidus subsp. rigidus L. S. Rose 1949-8-14 49163 San Mateo Emerald Lake, hills west of Redwood City. 122 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
  CAS-BOT-BC101483  Corethrogyne filaginifolia George Oberlander 1950-4-3 863 San Mateo Grassland east of Lower Crystal Spr. Lake Comment
  JEPS30902  Corethrogyne filaginifolia J. H. Thomas 1958-6-11 7221 San Mateo about 4.3 mi due e of Belmont; Crystal Springs Reservoir 91 Comment
  UC87472  Corethrogyne filaginifolia Katharine Brandegee 1905-6-20 San Mateo near Lake Pilarcitos Comment
  POM57992  Corethrogyne filaginifolia var. californica C. F. Baker 1902-5-10 810 San Mateo Crystal Springs Lake. Comment
  POM132435  Cornus californica C. F. Baker 1902-9-2 1551 San Mateo Crystal Springs Lake. Comment
  POM287429  Cornus nuttallii Lyman Benson 1930-5-3 2087 San Mateo Near Woodside. 305 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
  CDA18373  Cortaderia selloana G. D. Barbe 1978-9-26 2441 San Mateo Skylawn Memorial Park; drive from Hwy 92 into the park. 716 Comment
  CDA18374  Cortaderia selloana G. D. Barbe 1978-9-26 2440 San Mateo Skylawn Memorial Park; drive from Hwy 92 into the park. 716 Comment
  CAS-BOT-BC180281  Corylus cornuta subsp. californica Josephine D. Randall 1907-4-27 112 San Mateo Colma King's Mt. Road above Woodside. Santa Cruz Peninsula Comment
  POM166453  Corylus cornuta var. californica A. D. E. Elmer 1903-03 4536 San Mateo Kings Mountain Comment
  RSA119711  Corylus cornuta var. californica I. L. Wiggins 1929-3-23 3373 San Mateo Road to Mud Lake, near Stanford University Comment
  UC1755440  Cotoneaster hodjingensis Dean W. Taylor 2004-6-2 19078 San Mateo San Bruno Mountain, southeast margin of the radio towers at the summit 365 Comment
  CAS-BOT-BC453501  Cotoneaster lacteus John H. Thomas 1968-10-6 14842 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. East of Palo Alto. Comment
  UCR255717  Cotoneaster pannosus Peter Rubtzoff 1977-4-16 8951 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
  CAS-BOT-BC287300  Cotula australis John H. Thomas 1965-4-29 10609 San Mateo San Bruno Mt in N part of county 396 Comment
  POM88012  Cotula australis L. R. Abrams 1902-4-13 2323 San Mateo San Andreas Lake. Comment
  CAS-BOT-BC287306  Cotula australis Walter & Irja Knight 1965-6-20 1253 San Mateo San Bruno Mt. Crystal Cave Canyon Comment
  UCR121577  Cotula coronopifolia George K. Helmkamp, E. A. Helmkamp 1999-6-28 5011 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC291462  Cotula coronopifolia Javier Penalosa 1963-2-23 2658 San Mateo South of Crocker Ave., San Bruno Mountain 213 Comment
  CAS-BOT-BC291469  Cotula coronopifolia Elmer I. Applegate 1895-3-9 293 San Mateo Field near Woodside Comment
  CAS-BOT-BC291470  Cotula coronopifolia R. Bacigalupi 1941-10-22 2747 San Mateo Very close to the San Francisco - San Mateo County Line Comment
  CAS-BOT-BC291476  Cotula coronopifolia Elsie Zeile 1911-3-30 s.n. San Mateo S. San Francisco Comment
  UCD101808  Crassula aquatica W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge, near Block Mountain; Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC427606  Crassula aquatica George Oberlander 1949-8-20 374 San Mateo San Francisco Watershed Reserve. About San Andreas Lake Comment
  CAS-BOT-BC427830  Crassula connata John H. Thomas 1958-2-15 6991 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 182 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
  JROH3653  Crataegus monogyna John H. Thomas 1967-6-1 12972 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3657  Crataegus monogyna John Hunter Thomas 1987-4-30 24212 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the trailers Comment
  JROH664  Crepis vesicaria subsp. taraxacifolia John H. Thomas 1958-5-10 7162 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1954  Croton setiger John H. Thomas 1959-8-22 8076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1957  Croton setiger John H. Thomas 1967-11-5 14131 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4981  Crypsis schoenoides John Hunter Thomas 1980-11-27 20193 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta Comment
  JROH5765  Cryptantha flaccida John Rawlings 2016-3-6 1678 San Mateo Jasper Ridge Biological Preserve, Stanford University; upper Big Inlet in serpentine along seasonal drainage 166 Comment
  SJSU7524  Cryptantha flaccida L. S. Rose 1966-5-2 66032 San Mateo Emerald L, W of Redwood City 91 Comment
  JROH1368  Cryptantha micromeres John Rawlings 2009-5-7 1069 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 in chaparral. 158 Comment
  JROH5808  Cryptantha micromeres Herb Dengler 1964-3-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. [William] Cooper trail between [plots] #4 & #5 [in the Westridge area, Portola Valley, CA south of the Preserve boundary]. Comment
  JROH1373  Cryptantha microstachys John H. Thomas 1973-4-7 16518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1374  Cryptantha microstachys John H. Thomas 1973-4-7 16518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1377  Cryptantha microstachys John Hunter Thomas 1978-4-22 19102 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1382  Cryptantha microstachys John Rawlings 2011-6-14 1068 San Mateo Jasper Ridge Biological Preserve, Stanford University. Up-slope along Trail b. 142 Comment
  SEINET3863390 Image available Cupressus macrocarpa K. Allred 1975-1-3 1270 San Mateo Half Moon Bay along Hwy 101 near Dune Beach.; 0 Comment
Read comments
Oct 30 2021
  RSA130966  Cuscuta ceanothi W. R. Dudley 1903-7-21 s.n. San Mateo near Hallidies Place. Portola Valley. Comment
  RSA800141  Cyclospermum leptophyllum Peter Rubtzoff 1988-6-25 9927 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  CAS-BOT-BC287326  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-BC287336  Cynara cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just S of Main St, Redwood City Comment
  CAS-BOT-BC287342  Cynara cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just S of Main St, Redwood City Comment
  JEPS22116  Cynara cardunculus subsp. cardunculus J. H. Thomas 1958-10-21 7487 San Mateo near intersection of Bayshore Highway and Main Street; Redwood City Comment
  CAS-BOT-BC190209  Cynodon dactylon Ira L. Wiggins 1980-8-29 22257 San Mateo Gravelly bed of San Francisquito Creek, ca. 75 m upstream from Pope Street bridge, Menlo Park. Comment
  JROH5002  Cynodon dactylon John H. Thomas 1967-11-5 14135 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195569  Cynodon dactylon John H. Thomas 1966-4-24 11581 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CHSC42086  Cynoglossum grande Rusti Gammon 1986-3-30 2 San Mateo Ca. 8 mi s of Saratoga, 4.1 mi w off hwy 9. 569 Comment
  JROH1390  Cynoglossum grande John H. Thomas 1958-2-15 6986 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1392  Cynoglossum grande John H. Thomas 1967-5-31 12941 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC217971  Cynosurus echinatus Elizabeth McClintock; Paul Reeberg 1989-6-18 s.n. San Mateo Saddle Area, San Bruno Mountains 213 Comment
  JROH5011  Cynosurus echinatus W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek -- above low-flow causeway on left in rocks. 81 Comment
  POM290779  Cyperus eragrostis Lyman Benson 1937-7-8 8446 San Mateo Lake Searsville, Stanford University; Santa Cruz Mt. Range 122 Comment
  CAS-BOT-BC114463  Cyperus eragrostis Phillip C. Wheeler 1965-6-19 s.n. San Mateo Crocker Industrial Park Comment
  SEINET3909461  Cyperus eragrostis Lewis S. Rose 1965-9-20 65107 San Mateo Burlingame, Trousdale Dr. & California Dr.; 0 9 Comment
  CAS-BOT-BC133769  Cypripedium fasciculatum Miss. Barbara Donahoe; Miss. Louise Boyd 1923-4-18 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC67972  Cystopteris fragilis Roxana S. Ferris 1921-3-20 2108 a San Mateo 6 mi. from Pescadero Comment
  RSA128366  Cytisus scoparius Peter H. Raven 1950-6-3 2259 A San Mateo Near San Andreas Lake. Comment
  UCD119665  Cytisus scoparius Annabelle Kleist 2008-5-28 Wun- 2 San Mateo Woodside, Wunderlich Park. Comment
  CAS-BOT-BC198211  Cytisus striatus Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo Base of Quarry, San Bruno Mountains Comment
  CAS-BOT-BC192232  Danthonia californica David D. Keck 1932-5-6 1479 San Mateo Just west of Millbrae Highlands 50 Comment
  CAS-BOT-BC192233  Danthonia californica L. R. A. 1902-5-11 2451 San Mateo Crystal Springs Comment
  CAS-BOT-BC192239  Danthonia californica W. R. Dudley 1899-5-14 s.n. San Mateo Top of Sneath Ranch hill, West of South Bruno Comment
  CAS-BOT-BC192240  Danthonia californica Roxana S. Ferris 1920-4-26 2021 San Mateo 2 mi south of Pescadero on Pigeon Pt. Road 30 Comment
  UCD37963  Danthonia californica Beecher Crampton 1962-6-11 6503 San Mateo San Mateo County, Sharp park suburb of pacifica, Moris' Point Road, west of State Highway 1. Comment
  POM347040  Danthonia californica var. americana Lyman Benson 1930-4-26 2071 San Mateo Stanford University. 122 Comment
  UC872608  Datisca glomerata Roxana Stinchfield 1915-10-14 257 San Mateo San Francisquito Creek; Santa Cruz Mountain Peninsula, San Francisquito Creek Comment
  JEPS59962  Deinandra corymbosa Lewis S. Rose 1969-8-22 69097 San Mateo Skyline and Half Moon Bay Road; Cahill Ridge 243 Comment
  UC174170  Deinandra corymbosa Katharine Brandegee 1885-1 San Mateo Moss Beach Comment
  SEINET7838962 Image available Deinandra corymbosa D. D. Keck 1932-5-25 1784 San Mateo Hills two miles west of Belmont Comment
  CAS-BOT-BC299190  Deinandra corymbosa subsp. corymbosa Ira L. Wiggins 1949-7-2 12199 San Mateo Pescadero Beach Comment
  CAS-BOT-BC299196  Deinandra corymbosa subsp. corymbosa J. H. Thomas 1949-6-4 592 San Mateo Along the coast 1.4 miles s. of road to Pescadero Comment
  CAS-BOT-BC299208  Deinandra corymbosa subsp. corymbosa A. D. E. Elmer 1903-7-1 4963 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC299228  Deinandra corymbosa subsp. corymbosa David D. Keck 1932-5-11 1765 San Mateo One mile east of San Gregorio 50 Comment
  JROH680  Delairea odorata Cary Tronson 2007-11-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near horse trail along Corte Madera Creek, near the collection site of many-flowered tobacco Comment
  CAS-BOT-BC292116  Delairea odorata John H. Thomas 1956-12-23 6480 San Mateo At 198 Oak Court, Menlo Park Comment
  OBI10661  Delphinium californicum Lewis S. Rose 1965-5-3 65058 San Mateo San Bruno Mtn, Colma Cyn 61 Comment
  POM270770  Delphinium californicum Lyman Benson 1930-5-12 s.n. San Mateo Lake Searsville. 152 Comment
  RSA152052  Delphinium californicum John H. Thomas 1961-5-7 9279 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC311529  Delphinium californicum A. D. E. Elmer July 1903 4548 San Mateo Pilarcitos Stone Dam Comment
  UC511171  Delphinium californicum Lyman Benson 1930-5-12 2127 San Mateo Lake Searsville San Francisco Bay watershed, Santa Cruz Mt. Range, Stanford 152 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-BC9212  Delphinium californicum subsp. californicum Josephine D. Randall 1907-6-5 310 San Mateo Los Trancos Road, Stanford University Comment
  CAS-BOT-BC9229  Delphinium decorum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountains, between April Brook and Radio Road 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
  RSA51292  Delphinium decorum Peter H. Raven 1950-4-16 1788 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  UC9150  Delphinium decorum subsp. tracyi Ivar Tidestrom May 1894 San Mateo Comment
Read comments
Jun 4 2007
  CAS-BOT-BC10288  Delphinium hesperium Alice Eastwood 1912-6-10 320 San Mateo Crystal Springs Comment
  UCSB11751  Delphinium hesperium Olson, Jim 1962-4-17 San Mateo 10 miles southeast of Halfmoon Bay; on Canada Road 45 Comment
  JEPS6236  Delphinium hesperium subsp. hesperium J. Burtt Davy 1893-6-17 805 San Mateo Belmont Comment
  UC570175  Delphinium hesperium subsp. hesperium N. K. Carlson 1935-6-29 107 San Mateo 1 mi s Pescadero 91 Comment
  UC9179  Delphinium hesperium subsp. pallescens J. Burtt Davy Jun 21 1893-Jun 23 1893 1152 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC9868  Delphinium nudicaule W. R. Dudley 1893-5-28 S. N. San Mateo Santa Cruz Peninsula, beyond Kings Mountain 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
  JROH3453  Delphinium patens subsp. patens John H. Thomas 1975-4-5 17711 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3457  Delphinium patens subsp. patens John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC7889  Delphinium variegatum LeRoy Abrams 1902-5-11 2454 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC7930  Delphinium variegatum Adolph Daniel Edward Elmer 1903-5-1 4796 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC7931  Delphinium variegatum Doris Kildale Gillespie 1930-4-21 9221 San Mateo Emerald Lake near Redwood City Comment
  LA207571  Delphinium variegatum Lewis S. Rose; 1933-4-30 33125 San Mateo Redwood City Comment
  SEINET10536059 Image available Delphinium variegatum subsp. apiculatum David D. Keck 1933-5-11 Keck 2309 San Mateo Crystal Springs Lake. Common on rocky ground on open slopes about east side of lake. Comment
  CAS-BOT-BC192598  Deschampsia cespitosa subsp. holciformis L. R. Abrams 1927-6-15 s.n. San Mateo Spring Valley Lakes Comment
  CAS-BOT-BC192600  Deschampsia cespitosa subsp. holciformis H. L. Mason 1921-5-28 s.n. San Mateo Pebble Beach near Pescadero Comment
  UCD63821  Deschampsia cespitosa subsp. holciformis R. Tofsrud 1949-6-1 San Mateo Hwy. #5, ca. 6 mi. from S.F. Co. line. Comment
  JROH5045  Deschampsia danthonioides H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5046  Deschampsia danthonioides John H. Thomas 1957-4-16 6654 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM190539  Deschampsia danthonioides D. D. Keck 1932-4-29 1448 San Mateo Redwood City. Fields near the San Francisco Bay salt marshes Comment
  CAS-BOT-BC201908  Deschampsia elongata W. R. Dudley 1908-6-26 s.n. San Mateo Edge of Dry Pond, Coal Mine Ridge Road Comment
  SEINET10527676  Deschampsia holciformis Edwin B. Copel 1903-6-10 Copeland 3305 San Mateo Montara Point. Comment
  CAS-BOT-BC709  Dicentra formosa Charles Piper Smith 1922-4-29 3502 San Mateo Montara Mountain Comment
  CAS-BOT-BC500897  Dichelostemma capitatum Margaret A. Barry 1937-5-15 119 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC500900  Dichelostemma capitatum H. A. Dutton 1900-2-18 s.n. San Mateo Woodside Serpentine along N. slope Comment
  CAS-BOT-BC500930  Dichelostemma capitatum Kim Marcus; David Schooly; Elizabeth McClintock 1975-4-13 s.n. San Mateo Above Hillside Blvd., South San Francisco Comment
  POM276997  Dichelostemma capitatum subsp. capitatum Lyman Benson 1931-3-15 2634 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  CAS-BOT-BC150447  Diplacus aurantiacus Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC150463  Diplacus aurantiacus Carl B. Wolf 1930-11-5 1804 San Mateo Half way up east side of La Honda Grade, Santa Cruz Mtns. 304 Comment
  CAS-BOT-BC121862  Dirca occidentalis W. R. Dudley 1900-3-17 s.n. San Mateo Near top of Montara Mtn Comment
  CAS-BOT-BC121863  Dirca occidentalis F. G. Kraus 1893-5-27 s.n. San Mateo near La Honda Comment
  CAS-BOT-BC121869  Dirca occidentalis Dennis E. Breedlove 1964-2-7 5916 San Mateo In San Andreas Canyon below the dam. Comment
  HSC21402  Dirca occidentalis L. S. Rose 1964-3-9 64004 San Mateo North end of Crystal Springs Lake. 122 Comment
  JROH4201  Dirca occidentalis John H. Thomas 1968-2-11 14144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4210  Dirca occidentalis John Hunter Thomas 1981-2-14 20227 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC872739  Dirca occidentalis Lewis S. Rose 1939-4-12 39060 San Mateo Crystal Springs Lake 152 Comment
  UCD116835  Dirca occidentalis R. E. Dengler 1960-4-11 13 San Mateo Stanford Biological Reserve, Jasper Ridge. 160 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
  CDA19686  Dittrichia graveolens J. Beall 2001-10-18 PDR 064552 San Mateo North Coast; East end of Weeks St. next to Bay Lands Nature Preserve vicinity of East Palo Alto. 0 Comment
  CDA20072  Dittrichia graveolens D. Pendleton 2002-10-16 PDR 065871 San Mateo San Francisco Bay Area; Sandhill Rd & Lawler Ranch Rd, W of Hwy 280. 0 Comment
  SEINET5548367  Dodecatheon hendersonii H. S. Gentry 1931-1 10 San Mateo 1.5 miles W of San Mateo, Half-Moon Bay road. Comment
  JROH1513  Draba verna John Hunter Thomas 1987-4-7 24172 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH5685  Draba verna John Rawlings 2015-2-15 1279 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Trail 7 at Hillside Lab 150 Comment
  RSA133097  Drymocallis glandulosa Donald A. Johansen 1933-5-18 705 San Mateo Hills above Searsville Lake along road from Portola to La Honda Comment
  CAS-BOT-BC159537  Drymocallis glandulosa var. glandulosa W. R. Dudley 1894-5-30 s.n. San Mateo Near San Carlos - Santa Cruz Peninsula Comment
  CAS-BOT-BC67891  Dryopteris arguta Fred Hemphill 1973-3-17 801 San Mateo San Carlos - north of Malabar Rd. and Melendy Dr. 207 Comment
  JEPS35165  Dryopteris arguta W. L. Jepson 1922-3-19 9538 San Mateo Lake San Andreas Comment
  UC1063776  Dryopteris arguta G. E. Sindel 1935-8-2 321 San Mateo head of Harington Creek; Santa Cruz Quadrangle Comment
  CAS-BOT-BC67897  Dryopteris arguta Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain - Wax Myrtle Ravine, Six-Fern Rock Comment
  SEINET11619629  Dryopteris arguta Unknown 1932-1 8921 San Mateo Woodside Comment
  POM281632  Dryopteris expansa Lyman Benson 1930-5-26 2139 San Mateo Stanford University, Lake Searsville 152 Comment
  SD38414  Dudleya caespitosa Edith A. Purer 1933-7-27 5383 San Mateo 2.0 miles south of Pigeon Point. Comment
  CAS-BOT-BC410866  Dudleya caespitosa Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano Nuevo Isl. Comment
  CAS-BOT-BC410872  Dudleya caespitosa K. Nakai 1979-10-1 529 San Mateo Devils Slide on west facing granite slope along Calif. Hwy 1. Comment
  CAS-BOT-BC428366  Dudleya farinosa Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  JROH4306  Echinodorus berteroi John Hunter Thomas 1979-9-9 19723 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  UC1224611  Echium John H. Thomas 1964-6-28 10436 San Mateo ca. 1.1 mi. e. Half Moon Bay (on rd. to Crystal Springs Lake) Comment
  CDA5627  Echium pininana T. C. Fuller 1967-8-23 16296 San Mateo North side of road to Crystal Springs, 1.2 miles east of Highway 1 at Half Moon Bay. 0 Comment
  CAS-BOT-BC112957  Eleocharis macrostachya Rimo Bacigalupi 1922-5-25 s.n. San Mateo Emerald Lake Redwood City. Comment
  JROH5655  Eleocharis macrostachya John Rawlings 2014-5-23 1271 San Mateo Jasper Ridge Biological Preserve, Stanford University; up-slope from boat dock (aka Searsville Lab Landing). 104 Comment
  POM199072  Elymus californicus A. D. E. Elmer 1903-06 4700 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC203689  Elymus glaucus subsp. glaucus George Oberlander 1950-5-6 931 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  JROH5963  Elymus glaucus subsp. glaucus John Rawlings 2017-5-24 2083 San Mateo Jasper Ridge Biological Preserve, Stanford University. SE corner of Sun Field Station along paved vehicle road to Sun Field Station loading zone 118 Comment
  CAS-BOT-BC203682  Elymus glaucus subsp. glaucus W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Mountain Peninsula. On ridge by trail to Big Basin Comment
  JROH5131  Elymus multisetus John Hunter Thomas 1986-6-7 24086 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA2050  Elytrigia repens Bruce Martin Aug 1949 San Mateo Coastal; Half Moon Bay, near San Francisco (about 30 mi. So.) 0 Comment
  JROH3043  Epilobium brachycarpum John H. Thomas 1972-8-18 16152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3047  Epilobium brachycarpum John Hunter Thomas 1988-10-17 24601 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lake Comment
  CAS-BOT-BC166140  Epilobium canum subsp. canum Lewis S. Rose 1965-9-4 65099 San Mateo Skyline Blvd. & Half Moon Bay Rd, Cahill Ridge 243 Comment
  POM32051  Epilobium canum subsp. canum C. F. Baker 1902-10-20 52 San Mateo Summit of Coast Range Comment
  JROH3069  Epilobium densiflorum H. J. Dengler 1972-8-21 s.n. 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-BC57987  Equisetum W. R. Dudley 1895-6-6 s.n. San Mateo Pescadero Creek, near Iverson's. Comment
  JROH60  Equisetum arvense John Hunter Thomas 1983-5-3 21879 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing Comment
  JROH63  Equisetum arvense John Hunter Thomas 1990-5-8 24856 San Mateo Jasper Ridge Biological Preserve, Stanford University 87 Comment
  JEPS79607  Equisetum hyemale subsp. affine Edward Lee 1978-8-19 San Mateo between Lake Pilarcitos and San Andreas Comment
  CAS-BOT-BC384628  Equisetum hyemale subsp. affine R. D. Hennessey 1964-4-26 70 San Mateo Area where Pilarcitos Creek empties into the ocean Comment
  CAS-BOT-BC57181  Equisetum hyemale subsp. affine Roxana S. Ferris 1921-3-20 2113 San Mateo Pescadero Creek Comment
  CHSC25149  Equisetum telmateia subsp. braunii R. N. Bowman 1971-4-5 9 San Mateo 10.7 mi. N.W. of Big Basin State Park office on Gazos Creek Rd., ca. 15 yds. W. of rd. along Streambed. 91 Comment
  UC150823  Equisetum telmateia subsp. braunii C. F. Baker 1902-3-18 324 San Mateo w side King's Mt. Comment
  UC810416  Equisetum telmateia subsp. braunii L. R. Abrams 1904-3-7 6343 San Mateo near Lime Talls Bear Gulch Comment
  SBBG51402  Equisetum telmateia subsp. braunii J. Doty 1969-3-27 608 San Mateo S side of St Hwy 84, ca. 500 ft W of Bridge No 35-165, ca. 6 mi E of St Hwy 1 Comment
  RSA131968  Equisetum telmateia var. braunii John H. Thomas 1950-3-5 1295 San Mateo About 5 miles from Pescadero toward La Honda along Hwy. 152 Comment
  JROH5721  Eragrostis pectinacea var. pectinacea John Rawlings 2015-9-22 1642 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  SEINET11859535  Erechtites argutus Unknown 1933-8-13 10505 San Mateo Santa Clara Valley, Belmont Comment
  CAS-BOT-BC299887  Erechtites glomeratus Alice Eastwood 1915-6-13 s.n. San Mateo Granada Comment
  RSA128463  Erechtites glomeratus Peter H. Raven 1950-6-3 2219 San Mateo Weed along Millbrae Ave, Millbrae. 61 Comment
  CAS-BOT-BC291241  Erechtites minimus George Oberlander 1950-7-15 1084 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  RSA436025  Eremocarpus setiger E. A. Purer 1933-8-25 18243 San Mateo Skyline Drive Comment
  SEINET12141700  Eremocarpus setiger E. A. Purer 1933-1 5513 San Mateo Skyline Blvd Comment
  CAS-BOT-BC512628  Eriastrum abramsii Lewis S. Rose 1936-5-28 36305 San Mateo Emerald Lake, W of Redwood City 91 Comment
  SD40117  Ericameria ericoides subsp. ericoides Edith A. Purer 1933-7-27 5375 San Mateo Two miles south of Pigeon Point. Comment
  CHSC320  Erigeron glaucus B. Richardson 1929-5-11 San Mateo Moss Beach. 9 Comment
  CAS-BOT-BC295088  Erigeron glaucus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. East facing slope below parking lot Comment
  UCD18550  Erigeron glaucus Roman Gankin 1950-7-9 22 San Mateo On a sea cliff outside city of Pescadero, overlooking the ocean. 6 Comment
  JROH692  Erigeron karvinskianus Herbert Dengler 1965-6-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; S.F. Cr. about 2' above water - N.W. of Searsville Rocks - (about 200' below Dennis Martin mill site of ca. 1849) Comment
  CAS-BOT-BC300065  Erigeron philadelphicus Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. Colma Canyon and April Brook junction Comment
  CAS-BOT-BC216247  Eriodictyon californicum Lewis S. Rose 1941-7-2 41288 San Mateo King's Mountain 480 Comment
  JROH2721  Eriodictyon californicum John H. Thomas 1971-5-30 15969 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2734  Eriodictyon californicum John Hunter Thomas 1992-7-24 25396 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM222784  Eriodictyon californicum S. S. Berry 1909-4-23 s.n. San Mateo Road near Los Francos Creek 61 Comment
  POM65463  Eriodictyon californicum A. D. E. Elmer 1903-04 4801 San Mateo Lake San Andreas Comment
  SD38516  Eriodictyon californicum Marie Cummings 1933-5-23 3732 San Mateo La Honda Comment
  CHSC56987  Eriogonum fasciculatum var. foliolosum Josephine Boyd 1988-5-11 San Mateo Along ne side of Canada Road ca 0.8 mi s of its jct. with Hwy. 92. 114 Comment
  CAS-BOT-BC251979  Eriogonum latifolium John H. Thomas 1964-4-30 10352 San Mateo San Bruno Mountain in northern part of county 914 Comment
  CAS-BOT-BC251997  Eriogonum latifolium Elsie Zeile 1909-8-23 s.n. San Mateo Granada. Open sandy cliff, bordering beach Comment
  CAS-BOT-BC251981  Eriogonum latifolium Elsie M. Zeile 1921-7-30 s.n. San Mateo Salada Beach (slopes nr. road) Comment
  CAS-BOT-BC389664  Eriogonum latifolium Sigal 1969-8-1 78 San Mateo Pescadero Beach Comment
  CAS-BOT-BC264771  Eriogonum luteolum David D. Keck 1931-10-5 1281 San Mateo Dam at north end of Crystal Springs Lake Comment
  CAS-BOT-BC264782  Eriogonum luteolum Alice Eastwood 1912-6-10 345 San Mateo Crystal Springs Comment
  POM193637A  Eriogonum luteolum L. R. Abrams 1902-9-21 2988 San Mateo Crystal Lake Comment
  POM263681  Eriogonum luteolum L. S. Rose 1941-9-2 41432 San Mateo Emerald Lake, west of Redwood City 90 Comment
  JROH3229  Eriogonum luteolum var. luteolum John H. Thomas 1967-11-5 14133 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1206485  Eriogonum luteolum var. luteolum Le Roy Abrams 1902-9-21 2988 San Mateo Crystal Lake - Woodside Comment
  UC662513  Eriogonum luteolum var. luteolum L. S. Rose 1941-9-2 41432 San Mateo w Redwood City; Emerald Lake 90 Comment
  CAS-BOT-BC269001  Eriogonum nudum var. auriculatum George Oberlander 1949-6-25 215 San Mateo San Francisco Watershed Reserve Comment
  SBBG32420  Eriogonum nudum var. auriculatum L. S. Rose 1964-9-9 67074 San Mateo Emerald Lake, W of Redwood City 243 Comment
  CAS-BOT-BC304077  Eriophyllum confertiflorum Elizabeth McClintock; Paul Reedberg 1988-4-26 s.n. San Mateo Guadalupe Hills Comment
  JROH697  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1967-5-31 12942 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC301255  Eriophyllum lanatum var. arachnoideum L. R. A. 1902-5-17 2472 San Mateo Kings Mountain Comment
  CAS-BOT-BC301268  Eriophyllum lanatum var. arachnoideum Josephine D. Randall 1907-6-29 68 San Mateo Santa Cruz Peninsula. Kings Mt. Road Comment
  JROH723  Eriophyllum lanatum var. arachnoideum John Hunter Thomas 1989-6-17 24774 San Mateo Jasper Ridge Biological Preserve, Stanford University; near San Francisquito Creek Comment
  CAS-BOT-BC301271  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Mountain Peninsula. By county road below Dam, San Mateo Creek Comment
  UC1377806  Eriophyllum latilobum W. J. Dress 1951-5-30 3274 San Mateo roadside bank in canyon sw of San Mateo Comment
Read comments
Mar 6 2006
  UC1118210  Eriophyllum staechadifolium T. Tyrrell 1928-9-26 7 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 182 Comment
  RSA1946  Eriophyllum staechadifolium C. B. Wolf 1930-11-5 1808 San Mateo Hills near the ocean, 2 miles south of Pescadero 61 Comment
  UC31755  Eriophyllum staechadifolium Albert Kellogg San Mateo Schoolhouse Station Comment
  JEPS121483  Erodium botrys Adam C. Schneider 2013-5-17 140 San Mateo Crystal Springs Reservoir Comment
  RSA176420  Eryngium aristulatum var. aristulatum John H. Thomas 1964-7-9 10443 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  CAS-BOT-BC54840  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-3-15 800 San Mateo East side Crystal Springs Lake. 106 Comment
  CAS-BOT-BC54842  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 806 San Mateo Crests and steep upper slopes of the San Bruno Hills. 365 Comment
  CAS-BOT-BC54843  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 806 San Mateo Crests and steep upper slopes of the San Bruno Hills. 365 Comment
  CAS-BOT-BC54849  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-3-26 901 a and 901b ripe pods San Mateo Dunes just back of high sea cliff very near Sharp Park (Salada Beach). Comment
  CAS-BOT-BC54877  Erysimum franciscanum Peter H. Raven 1950-2-25 1374 San Mateo San Bruno Mountains. Between Brisbane and N.B.C. Television Station. 243 Comment
  RSA101842B  Erysimum franciscanum G. B. Rossbach 1939-4-2 908 -b San Mateo Just above and west of South end of San andreas Lake 213 Comment
  UC1034710  Erysimum franciscanum G. B. Rossbach 1955-3-26 573 San Mateo innder dunes back of sea bluff about 1 mi n Sharp Park (Salada) Comment
  UC1034949  Erysimum franciscanum G. B. and R. P. Rossbach 1938-4-3 806 San Mateo crests and steep upper slopes San Bruno Hills 304 Comment
  SD37720  Erythranthe guttata Marie Cummings 1933-5-23 3722 San Mateo Spring Valley Comment
  CAS-BOT-BC403535  Eschscholzia californica Margaret A. Barry 1937-4-21 20 San Mateo On Coal Mine Ridge Comment
  CHSC22755  Eschscholzia californica Robert A. Schlising 1962-2-24 2083 San Mateo the California Coastal Ranges. Roadside, along Cabrillo Hwy (No 1) .7 mi N of county line. Comment
  JEPS121486  Eschscholzia californica Adam C. Schneider 2013-5-17 157 San Mateo Crystal Springs Reservoir Comment
  SD40077  Eschscholzia californica Edith A. Purer 1933-7-27 5384 San Mateo 2.0 miles south of Pigeon Point. Comment
  UC10015  Eschscholzia californica J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC202742  Euonymus occidentalis Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC202743  Euonymus occidentalis G. H. Mallory 1919-8-20 s.n. San Mateo La Honda Comment
  POM202650  Euonymus occidentalis Alice Eastwood 1933-5-31 18843 San Mateo Butano Canyon. Comment
  RSA116766  Euonymus occidentalis Elmer I. Applegate 1895-5-11 s.n. San Mateo Near Searsville Dam; Santa Cruz Mountain Peninsula. Comment
  JROH1800  Euonymus occidentalis var. occidentalis H. J. Dengler 1975-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N. of Searsville Rocks, 30' from S.F. Cr. Comment
  CAS-BOT-BC202532  Euphorbia John H. Thomas 1968-10-6 14848 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. East of Palo Alto Comment
  UCSC000450  Euphorbia crenulata H. S. Yates 1935-5-8 5211 San Mateo 1.5 mi. S. Mindego Hill Santa Cruz 335 Comment
  RSA18354  Euphorbia lathyris C. B. Wolf 1929-5-25 3734 San Mateo 2 miles from Pescadero on Alpine Creek. Comment
  JROH5892  Euphorbia oblongata Ann Lambrecht 2008-9-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; about 3m uphill to the west from Bear Creek Crossing, at the Preserve boundary Comment
  SJSU8501  Euphorbia oblongata L. F. Wagner 1979-5-1 46 San Mateo N side Chaucer St Bridge, Menlo Park-Palo Alto boundary Comment
  JROH1970  Euphorbia spathulata Herbert Dengler 1963-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 500' N.E. of serp. Comment
  CAS-BOT-BC310619  Eurybia radulina L. R. Abrams 1916-10-19 6350 San Mateo Searsville Ridge Comment
  SEINET5708704 Image available Euthamia occidentalis Delzie Demaree 1933-1 10531 San Mateo Leepsic Junction, Baden. Rolling bay area.; Leepsic Junction Comment
  CAS-BOT-BC413877  Fallopia convolvulus Ira L. Wiggins 1935-8-24 8159 San Mateo 2 mi. E. of Half Moon Bay Comment
  JROH5174  Festuca arundinacea John Rawlings 2009-5-13 1030 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from Trail 9 in Buckeye Alley. 135 Comment
  SEINET10887997  Festuca arundinacea P. Rubtzoff 1976-6-13 Rubtzoff 8633 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. 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
  CAS-BOT-BC278355  Festuca californica subsp. californica W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Mountain Peninsula. By road to Kings Mt near junction of trail from Tripp Store Comment
  UCD65864  Festuca californica subsp. californica P. B. Kennedy 1916-4-1 San Mateo Daly City, Colma Canyon, S San Francisco. Comment
  RSA135730  Festuca californica var. californica W. R. Dudley 1900-3-17 s.n. San Mateo Ravine north of Seal Cove. Comment
  CAS-BOT-BC278473  Festuca idahoensis L. R. A. 1902-5-11 2450 San Mateo Open ground above La Honda Comment
  RSA191941  Festuca idahoensis R. F. Thorne, P. Everett 1963-6-9 32228 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower 335 Comment
  JROH5485  Festuca microstachys John Rawlings 2005-3-30 1016 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing around and in cracks of serpentine rock outcrops in north-facing serpentine grassland (Area H), uphill and west of the exclosure. 146 Comment
  JROH5486  Festuca microstachys A. G. Vestal 1923-5-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5496  Festuca myuros John H. Thomas 1967-5-12 12890 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5505  Festuca myuros John Rawlings 2013-4-16 1132 San Mateo Jasper Ridge Biological Preserve, Stanford University. In and along Trail 2 extension south of the Dengler Transect after a short uphill section where the trail passes a boulder on the uphill side. 84 Comment
  JROH5495  Festuca myuros John H. Thomas 1967-5-12 12867 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5506  Festuca octoflora John H. Thomas 1966-4-20 11561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5284  Festuca perennis John Hunter Thomas 1980-5-1 19911 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5297  Festuca temulenta John Rawlings 2007-5-30 1014 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of mowed area (fire truck turn around) near Goya Gate 192 Comment
  CAS-BOT-BC304294  Filago pyramidata Walter & Irja Knight 1967-5-16 s.n. San Mateo San Bruno Mt. Randolph Ave, South San Francisco Comment
  SJSU15424  Foeniculum vulgare Toni Corelli 2011-8-31 712 San Mateo Pescadero State Beach and Marsh Natural Preserve, along Butano Trail 18 Comment
  UCD164213  Foeniculum vulgare Peter Rubtzoff 1978-9-16 9269 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; in upper part of East Fork Colma Creek canyon. Comment
  CDA34004  Fragaria californica D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .151 San Mateo Santa Cruz Mountains.; Skyline Blvd, ~ 5 miles W of Los Altos. Comment
  SJSU2271  Fragaria chiloensis C. W. Sharsmith 1947-4-11 6752 San Mateo Pescadero Beach near Pescadero Point Comment
  CAS-BOT-BC437030  Fragaria chiloensis W. R. Dudley 1894-5-24 s.n. San Mateo Near Pebble Beach, Pescadero, Santa Cruz Peninsula Comment
  UC1334693  Fragaria vesca R. S. Woglum 1935-5-25 1158 San Mateo Skyline Drive s to Big Basin Redwoods; San Francisco Area Comment
  JROH3672  Fragaria vesca John Hunter Thomas 1990-4-26 24812 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near redwood grove near Rattlesnake Rock Comment
  CAS-BOT-BC457532  Fragaria vesca subsp. californica John H. Thomas 1961-5-7 9252 San Mateo San Bruno Mountain in northern part of county, 396 Comment
  CAS-BOT-BC389686  Fragaria vesca subsp. californica Jeanie Nieri 1953-2-14 75 San Mateo Hillside 6 miles west of Belmont Comment
  CAS-BOT-BC457517  Fragaria vesca subsp. californica W. R. Dudley 1898-1-1 s.n. San Mateo Goat Hill, Little Butano, Santa Cruz Pennisula Comment
  CAS-BOT-BC457523  Fragaria vesca subsp. californica Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo Below top of mountain in vicinity of radio station, San Bruno Mountain Comment
  CAS-BOT-BC457533  Fragaria vesca subsp. californica Ira L. Wiggins 1925-4-1 1647 San Mateo on Kings Mountain Road 3/4 of a mile above Woodside in the old cut over redwood (Sequoia sempervirens) belt Comment
  CAS-BOT-BC52674  Frangula californica subsp. californica James Newman 1951-6-5 96 San Mateo Searsville Lake Comment
  JROH3549  Frangula californica subsp. californica John Hunter Thomas 1981-2-14 20224 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC53596  Frangula californica subsp. tomentella Ned Cahill 1974-4-23 157 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH3578  Frangula californica subsp. tomentella John H. Thomas 1973-5-5 16770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC211606  Frankenia salina Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Northwest beach, Point San Bruno, San Bruno Mountain Comment
  POM130871  Fraxinus latifolia C. F. Baker 1903-6-30 3355 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC130130  Fritillaria affinis A. D. E. Elmer 1903-5-1 5045 San Mateo Portola Comment
  CAS-BOT-BC130136  Fritillaria affinis Roxana S. Ferris 1921-3-21 2121 San Mateo [Ano] Ano Nuevo Pt. Comment
  POM169866  Fritillaria affinis A. D. E. Elmer 1903-05 5045 San Mateo Portola 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
  RSA371591  Fritillaria affinis Thomas S. Elias 1987-4-10 10336 San Mateo Along Canyon Road, north of Butano State Park Comment
  SD39120  Fritillaria affinis Marie Cummings 1933-4-11 11 San Mateo Spring Valley Lake. Comment
  SEINET12044993  Fritillaria affinis J. D. Randall 1908-1 s.n. San Mateo King's Mt., Santa Cruz Peninsula Comment
  SJSU8738  Fritillaria affinis C. H. Bracker 1966-4-14 San Mateo by Sawyer Camp Rd along Crystal Springs Reservoir Comment
  JEPS4952 Image available Fritillaria biflora var. ineziana Inez Smith 1914-3-12 San Mateo Hillsboro; ; Hillsboro, San Mateo Co. Comment
  CAS-BOT-BC130378  Fritillaria liliacea Volney Rattan 1880-1-1 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC130380  Fritillaria liliacea George Oberlander 1950-3-18 517 San Mateo East Upper Crystal Spr. Lake Comment
  CAS-BOT-BC130386  Fritillaria liliacea John H. Thomas 1969-4-30 15031 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  SDSU20659  Fritillaria liliacea Sean Ryan 2011-3-18 76 San Mateo 65 yds S of Point Reyes-Petaluma Rd. approx. 0.66 mi W of its intersection with Nicasio Valley Rd. Nicasio Reservoir. 65 Comment
Read comments
Sep 10 2014
  UCR248782  Fumaria capreolata Peter Rubtzoff 1988-5-12 9921 San Mateo San Bruno Mountain, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; NW part of the area, near old Guadalupe Road between Bog Trail and Saddle Trail junction 213 Comment
  UCD163788  Galium Peter Rubtzoff 1988-6-25 9928 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  RSA195511  Galium aparine John H. Thomas 1966-4-22 11566 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  RSA130681  Galium aparine Harry A. Dutton 1900-3-25 s.n. San Mateo The Santa Cruz Peninsula Comment
  RSA130682  Galium aparine James I. McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Springs Lakes Comment
  JEPS21692  Galium murale R. S. Ferris, W. R. Ernst and John H. Thomas 1958-5-10 7138 San Mateo about 5 mi sw Palo Alto; Jasper Ridge 152 Comment
  JROH3801  Galium murale John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130817  Galium nuttallii Josephine Randall 1907-6-8 352 San Mateo Portola Valley. Santa Cruz Peninsula. Comment
  JEPS6605  Galium porrigens var. porrigens H. A. Walker June 1914 3555 San Mateo San Bruno Hills Comment
  JROH3812  Galium porrigens var. porrigens John Hunter Thomas 1981-5-25 20619 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA502332  Galium trifidum var. pacificum D. W. Taylor 1987-8-20 9310 San Mateo Cascade Ranch state park area, between Whitehorse Creek and Cascade Creek. Comment
  RSA120734  Galium triflorum S. S. Tillett, I. Sternback 1956-6-24 530 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  OBI9909  Galium triflorum L. T. Dempster 1956-5-15 1001 San Mateo Lake Pilarcitos Comment
  JROH791  Gamochaeta ustulata John H. Thomas 1977-5-14 18608 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH802  Gamochaeta ustulata John Hunter Thomas 1987-5-5 24254 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR240616  Gamochaeta ustulata T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3516 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-BC303465  Gamochaeta ustulata Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo Upper Colma Canyon, San Bruno Mt Comment
  CDA19877  Gastridium phleoides L. Kuwahara 2002-5-17 PDR P 120137 San Mateo San Francisco Bay Area; Growing from rock used to resurface roads on watershed property. 0 Comment
  CAS-BOT-BC219101  Genista monspessulana Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Radio Road Comment
  CAS-BOT-BC219150  Genista monspessulana Walter Knight; Irja Knight 1967-5-16 s.n. San Mateo Brisbane Comment
  JROH2011  Genista monspessulana John Hunter Thomas 1981-4-30 20518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC219148  Genista monspessulana Doris M. Ladd 1954-5-1 50 San Mateo Road to La Honda, near Five Points Comment
  JROH2614  Geranium dissectum John H. Thomas 1973-4-14 16555 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC166729  Geranium retrorsum Peter Rubtzoff 1975-10-4 8418 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; upper part of East Fork Colma Creek. Comment
  JROH3159  Gilia achilleifolia subsp. multicaulis John Hunter Thomas 1987-4-30 24221 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  RSA20368  Gilia angelensis C. B. Wolf 1938-4-24 9401 San Mateo 1/4 mile SW of the San Francisquito Creek bridge back of Stanford University. 61 Comment
  SD38795  Gilia tricolor Alice Spalding 1933-4-18 3724 San Mateo Comment
  CAS-BOT-BC266511  Githopsis diffusa Margaret A. Barry 1937-5-15 s.n. San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC303686  Glebionis coronaria Walter & Irja Knight 1965-4-24 1083 San Mateo San Bruno Mt. Pig Ranch Ravine 45 Comment
  RSA184927  Gnaphalium beneolens L. S. Rose 1966-8-15 66082 San Mateo Emerald Lake, west of Redwood City 91 Comment
  RSA294163  Grindelia Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4226 San Mateo N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  RSA201473  Grindelia camporum J. T. Howell 1964-12-6 41032 San Mateo Near Southern Pacific RR station, Millbrae. Comment
  CAS-BOT-BC304506  Grindelia hirsutula John H. Thomas 1968-10-6 14845 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. East of Palo Alto Comment
  CAS-BOT-BC304515  Grindelia hirsutula Walter Knight 1963-11-8 389 San Mateo San Bruno Mt. Along Bayshore highway north of So. San Francisco Comment
  CAS-BOT-BC304526  Grindelia hirsutula Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC304536  Grindelia hirsutula W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. By road from Pilarcitos to San Andreas 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-BC304549  Grindelia hirsutula Javier Penalosa 1963-3-30 2736 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 289 Comment
  CAS-BOT-BC304554  Grindelia hirsutula A. D. E. Elmer 1903-6-1 4267 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC304567  Grindelia hirsutula Lewis S. Rose 1933-6-9 33221 San Mateo San Andreas Lake Comment
  JEPS10208  Grindelia hirsutula Rimo Bacigalupi with G. T. Robbins 1954-6-18 4550 San Mateo road bank along Alpine Road 1/4 mi w Skyline Boulevard 701 Comment
  JEPS20069  Grindelia hirsutula Peter H. Raven 1957-9-1 11297 San Mateo at junction of State Highway 1 and Tunitas Creek Comment
  JEPS7750  Grindelia hirsutula Peter H. Raven 1950-4-30 1959 San Mateo Montara Montara (windblown slopes facing ocean) 15 Comment
  UC520425  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-7 3684 San Mateo South San Francisco 0 Comment
  UC897085  Grindelia hirsutula J. T. Howell 1932-10-21 San Mateo Pigeon Point Comment
  JROH820  Grindelia hirsutula John Hunter Thomas 1980-5-8 19941 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH826  Grindelia hirsutula John Hunter Thomas 1987-5-26 24316 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB24492  Grindelia hirsutula McMinn, Howard 1922-6-22 San Mateo Court road & Half Moon Bay Comment
  RSA0116908  Grindelia stricta var. angustifolia Lyman Benson 1945-7-29 11839 San Mateo Bayshore Highway at San Carlos. 3 Comment
  RSA11899  Guillenia lasiophylla Elmer I. Applegate 1895-5-11 33 San Mateo Stock Farm. Stanford University. Comment
  CAS-BOT-BC306285  Hedypnois cretica Thayne C. Parks 1963-5-28 321 San Mateo In Woodside Road, about 2 miles east of summit Comment
  JROH832  Helenium puberulum John H. Thomas 1968-4-19 14293 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH843  Helenium puberulum John Hunter Thomas 1982-9-23 21162 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM288424  Helenium puberulum Lyman Benson 1937-7-15 8453 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  CAS-BOT-BC309525  Helenium puberulum Elizabeth McClintock; Paul Reeberg 1988-8-18 s.n. San Mateo San Bruno Mountains. Along Summer Seep Trail 220 Comment
  CAS-BOT-BC309535  Helenium puberulum W. R. Dudley 1895-6-14 s.n. San Mateo Santa Cruz Peninsula. By San Francisquito Creek near St. Michaels Church Comment
  JROH837  Helenium puberulum John H. Thomas 1976-10-16 18402 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH851  Helianthella californica var. californica John H. Thomas 1967-5-12 12880 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH863  Helianthella californica var. californica John Hunter Thomas 1991-5-9 25042 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305628  Helianthus californicus W. R. Dudley 1893-8-2 s.n. San Mateo Santa Cruz Peninsula. Doyles Ranch near Bay, Menlo Park Comment
  SD39700  Heliotropium curassavicum Edith A. Purer 1933-7-27 5360 San Mateo Pigeon Point Comment
  UCR80233  Hemizonia congesta L. S. Rose 1964-9-5 64070 San Mateo San Francisco Bay Region, Emerald Lake, west of Redwood City 244 Comment
  CAS-BOT-BC313457  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1910-8-24 s.n. San Mateo Corte Madera Creek Comment
  CAS-BOT-BC314920  Hemizonia congesta subsp. luzulifolia John H. Thomas 1971-5-2 16848 San Mateo Near intersection of Canada Road and Edgewater Road about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC314936  Hemizonia congesta subsp. luzulifolia C. F. Baker 1903-6-30 3350 San Mateo Crystal Springs Comment
  CAS-BOT-BC314949  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  SBBG55408  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  UC897724  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1935-9-21 35652 San Mateo Redwood City Comment
  UC897727  Hemizonia congesta subsp. luzulifolia Roxana Stinchfield 1915-10-14 260 San Mateo Cedro Villa Santa Cruz Mountain Peninsula, Stanford University Comment
  CAS-BOT-BC314930  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-5-20 s.n. San Mateo Summit between San Mateo and Crystal Springs Lakes Comment
  CAS-BOT-BC314942  Hemizonia congesta subsp. luzulifolia H. M. Hall 1915-8-28 10113 San Mateo East side of Crystal Springs Lake 121 Comment
  CAS-BOT-BC314943  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo Near Crystal Springs Lake Comment
  CAS-BOT-BC314951  Hemizonia congesta subsp. luzulifolia Alice Eastwood 1919-9-1 s.n. San Mateo San Mateo Comment
  JROH871  Hemizonia congesta subsp. luzulifolia John Hunter Thomas 1984-9-6 23478 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD5611  Hemizonia congesta subsp. luzulifolia Ulysses S. Grant IV 1925-9-2 San Mateo Burlingame Comment
  UC1584834  Hemizonia congesta subsp. luzulifolia Jerry Powell 1990-5-11 1580 San Mateo at junction of Hwy 280 and Hwy 92 Comment
  RSA81629  Hemizonia corymbosa subsp. corymbosa James I. McMurphy 1906-11-17 2 San Mateo Near Portola. Comment
  SEINET11848436  Hemizonia pungens E. A. Purer 1933-1 5399 San Mateo along Bayshore Highway Comment
  RSA18316  Heracleum maximum C. B. Wolf 1929-5-20 3720 San Mateo No. end of Searsville Lake. Comment
  JROH252  Heracleum maximum John Hunter Thomas 1986-5-1 23989 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing near San Francisquito Creek Comment
  CAS-BOT-BC310247  Hesperevax sparsiflora var. sparsiflora Ned Cahill 1974-4-29 191 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH899  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1991-5-2 25008 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403864  Hesperocnide tenella Roxana S. Ferris 1921-3-20 2109 San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek, 6 mi above Pescadero Comment
  CAS-BOT-BC176204  Hesperolinon congestum John H. Thomas 1961-5-14 9379 San Mateo Just north of dam on San Mateo Creek 121 Comment
  JROH2928  Hesperolinon micranthum John H. Thomas 1969-6-4 15107 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI16088  Heterotheca sessiliflora subsp. bolanderi Lewis S. Rose 1966-8-20 66087 San Mateo San Bruno Mtn, summit 366 Comment
  UC1577655  Heterotheca sessiliflora subsp. echioides N. K. Carlson 1935-6-21 77 San Mateo Ridge between Slate and Oil Creek; Santa Cruz Quadrangle Comment
  UC202810  Heuchera micrantha var. diversifolia A. D. E. Elmer July, 1903 4762 San Mateo Pilarcitos Stone Dam Comment
  UC729863  Heuchera micrantha var. diversifolia Carl B. Wolf 1929-6-8 3747 San Mateo along head of San Francisquito Creek; Searsville Lake 91 Comment
Read comments
Jul 14 2009
  UCR70818  Heuchera micrantha var. diversifolia David D. Keck 1932-6-1 1794 San Mateo Coast Range; Santa Cruz Mtns, above Woodside on La Honda road 366 Comment
  RSA0063142  Heuchera micrantha var. hartwegii D. D. Keck 1932-6-1 1794 San Mateo Above Woodside on La Honda Rd. E slope of Santa Cruz Mtns. Comment
  CHSC56591  Heuchera micrantha var. pacifica Steven Triano 1988-5-24 167 San Mateo Ca 0.1 mi w of Old La Honda Road near Martin Creek and 0.4 air miles e of SkyLonda. 381 Comment
  RSA0063064  Heuchera pilosissima I. L. Wiggins 1925-5-24 1742 San Mateo Along county road from Pescadero to Pebble Beach along rich swamp land just before coming to the artichoke lands of the American Produce Co. Comment
  CAS-BOT-BC319632  Hieracium albiflorum H. L. Mason 1921-7-14 s.n. San Mateo Pescadero Creek Comment
  UC1132086  Hierochloe occidentalis Beryl Schreiber 1939-4-3 2609 San Mateo Pescadero-La Honda road 1 mi s La Honda; Santa Cruz Quadrangle 152 Comment
  CAS-BOT-BC55436  Hirschfeldia incana Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountains. Base of Quarry 2. Comment
  JROH5216  Holcus lanatus John Hunter Thomas 1988-6-2 24501 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near old bridge. Comment
  CAS-BOT-BC150054  Holodiscus discolor var. discolor Margaret A. Barry 1937-6-24 180 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC150067  Holodiscus discolor var. discolor David D. Keck 1932-6-1 1795 San Mateo Above Searsville Lake, on road between Woodside and Skyline Blvd., Santa Cruz Mountains Comment
  JROH3687  Holodiscus discolor var. discolor John H. Thomas 1962-7-15 9916 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near northern end of ridge. Comment
  JROH3693  Holodiscus discolor var. discolor John Hunter Thomas 1978-7-2 19249 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM198993  Hordeum brachyantherum A. D. E. Elmer 1903-06 4857 San Mateo Crystal Springs Lake. Comment
  SEINET10610437  Hordeum brachyantherum subsp. brachyantherum Delzie Demaree 1932-5-8 Demaree 9106 San Mateo Spring Valley Road. Comment
  CAS-BOT-BC289537  Hordeum brachyantherum subsp. californicum Elizabeth McClintock; Paul Reeberg 1988-6-6 s.n. San Mateo Below Guadalupe Canyon Parkway 1/4 mile east of Carter Street, San Bruno Mountains 91 Comment
  CAS-BOT-BC285149  Hordeum marinum subsp. gussoneanum P. R. Hichborn 1920-5-18 236 San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  CAS-BOT-BC285151  Hordeum marinum subsp. gussoneanum W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs Lake Comment
  CAS-BOT-BC285154  Hordeum marinum subsp. gussoneanum George Oberlander 1950-7-15 1040 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  SEINET10611055  Hordeum marinum subsp. gussoneanum LeRoy R. Abrams Abrams 1660 San Mateo Cooley's Landing. Comment
  JROH5254  Hordeum murinum subsp. glaucum John Rawlings 2013-4-30 1177 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road B in SLAC Corridor. Comment
  SD39730  Hordeum murinum subsp. leporinum Edith A. Purer 1933-7-27 5372 San Mateo Sand dunes, two miles south of Pigeon Point Comment
  CAS-BOT-BC271360  Hordeum vulgare Arthur Chan 1981-5-8 070 San Mateo South San Francisco, 1050 Old Mission Road in a vacant lot to the rear of the parking lot Comment
  JEPS29415  Horkelia californica L. R. Heckard 1962-7-16 1262 San Mateo near summit of San Bruno Mt. (w-facing slope to the ne of transmitting station KQED) 335 Comment
  CAS-BOT-BC536142  Horkelia californica Josephine D. Randall 1907-7-23 338 San Mateo Near Crystal Springs Lake, Santa Cruz Peninsula Comment
  CAS-BOT-BC536149  Horkelia californica Alice Eastwood; John Thomas Howell 1938-6-26 6069 San Mateo Pigeon Point Comment
  CAS-BOT-BC536151  Horkelia californica Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC536154  Horkelia californica David D. Keck 1939-7-1 5008 San Mateo 3 miles south of Pescadero, 1 mile from the ocean 60 Comment
  OBI10116  Horkelia californica Lewis S. Rose 1966-8-20 66086 San Mateo San Bruno Mtn. Head of Colma Cyn 206 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
  SEINET7097934  Horkelia californica subsp. californica A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  JROH3703  Horkelia californica var. californica John Rawlings 2013-5-21 1163 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along short lateral from Trail 12 to old quarry. 109 Comment
  CAS-BOT-BC143924  Horkelia cuneata var. sericea A. D. E. Elmer 1903-4-1 5036 San Mateo Cemeteries Comment
  SJSU2301  Hosackia gracilis C. W. Sharsmith 1950-4-16 6630 San Mateo near Pescadero Point, Pescadero Comment
  CDA5496  Hydrocotyle sibthorpioides T. C. Fuller 1970-5-12 19531 San Mateo Emily Brown property, 3045 Ralston Avenue, Burlingame. 0 Comment
  SD27818  Hypericum anagalloides Carl B. Wolf 1929-5-25 3729 San Mateo Pebble Beach south of Pescadero 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
  UCD160244  Hypericum canariense Christopher Dillis 2015-5-15 7 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
  CAS-BOT-BC311395  Hypochaeris glabra Fred Hemphill 1973-5-14 820 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH912  Hypochaeris glabra John H. Thomas 1961-4-29 9187 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC311480  Hypochaeris radicata Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  JROH928  Hypochaeris radicata John H. Thomas 1974-5-3 17237 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD39736  Hypochaeris radicata Edith A. Purer 1933-7-27 5394 San Mateo 2.0 miles south of Pigeon Point. Comment
  SD38479  Iris douglasiana Marie Cummings 1933-4-14 16 San Mateo Half-Moon Bay. Comment
  UC1300946  Iris douglasiana Helen K. Sharsmith 1963-2-16 5146 San Mateo Summit of San Bruno Mountain; San Francisco Bay Region 396 Comment
  CAS-BOT-BC133655  Iris longipetala C. F. B. 1902-3-22 348 San Mateo South San Francisco Comment
  CAS-BOT-BC133668  Iris longipetala J. H. Thomas 1954-5-28 4240 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC133671  Iris longipetala Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge Comment
  CAS-BOT-BC133674  Iris longipetala Walter Knight; Irja Knight 1964-3-16 985 San Mateo Point San Bruno Comment
  SBBG32267  Iris longipetala L. S. Rose 1968-3-26 68009 San Mateo S base of San Bruno Mts, S San Francisco 30 Comment
  IRVC9079  Iris macrosiphon P. W. Rundel 1963-6-11 1116 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  JROH4431  Iris pseudacorus John R. Barth 1963-4-13 4 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake 103 Comment
  CAS-BOT-BC112624  Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point Comment
  SJSU15910  Isolepis cernua John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1735 San Mateo Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC112621  Isolepis cernua W. R. Dudley 1909-10-4 s.n. San Mateo Border of Laguna Alta near Mussel Rock. Comment
  SEINET7589109 Image available Isolepis cernua Lewis S. Rose 1956-7-2 56117 San Mateo Skyline Blvd, hills W of San Mateo. 183 Comment
  CAS-BOT-BC102322  Juglans hindsii D. E. Breedlove 1973-9-26 35553 San Mateo Pescadero Creek County Park 365 Comment
  CAS-BOT-BC102323  Juglans hindsii Ed Holm; Field Biol. Class, San Mateo High School 1984-7-24 s.n. San Mateo In creekbed of San Mateo Creek next to Polhemus Rd. just before it joins Crystal Springs Rd. and about 100 yds. below Comment
  JROH2771  Juglans hindsii John H. Thomas 1976-11-5 18432 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing 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
  UCD164089  Juncus breweri Peter Rubtzoff 1977-11-24 9145 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET8544724  Juncus bufonius Charles Piper Smith 1905-4-1 728 San Mateo Stanford Univ. Roadside near Stockfarm bridge. Comment
  JROH4452  Juncus bufonius var. bufonius John Hunter Thomas 1978-5-23 19225 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15957  Juncus bufonius var. bufonius John Rawlings, Ken Hickman 2016-5-26 1834 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
  JROH4468  Juncus bufonius var. occidentalis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15214  Juncus capitatus Toni Corelli 2011-4-28 700 San Mateo Ano Nuevo, Cascade Field, junction of Cascade Creek Trail and Atkinson Bluff Trail 9 Comment
  CHSC115873  Juncus effusus subsp. pacificus J. Rawlings 2013-7-23 2001 San Mateo Near Searsville Landing, W shore of Searsville Lake, Jasper Ridge Biological Preserve, Sand Brancisco Bay subregion. 105 Comment
  CAS-BOT-BC173814  Juncus effusus var. brunneus Peter Rubtzoff; Roman Gankin 1975-9-11 8372 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH4474  Juncus hesperius Toni Corelli 2008-10-1 346 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake in muddy area on shelf of dried lake bed. 103 Comment
  POM259791  Juncus lescurii I. L. Wiggins, Roxana S. Ferris 1939-8-2 9289 San Mateo Ano Nuevo Point Comment
  UC1601735  Juncus lescurii J. Burtt Davy 1893-6-22 758 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  SD260863  Juncus lescurii Peter Rubtzoff 1976-6-30 8708 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
  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
  JROH4482  Juncus occidentalis John Hunter Thomas 1978-5-16 19214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4490  Juncus occidentalis John Hunter Thomas 1983-5-23 22246 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near shack side & low-flow crossing. Comment
  SJSU15929  Juncus occidentalis John Rawlings, Toni Corelli 2016-4-29 1762 San Mateo Cascade Field, north and south of Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  CAS-BOT-BC227623  Juncus occidentalis Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. Shearwater 22 Comment
  UC1601846  Juncus patens J. Burtt Davy 1893-6-22 760 San Mateo Lake Pilarcitos Comment
  UC1601805  Juncus phaeocephalus J. Burtt Davy 1893-6-22 756 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  CAS-BOT-BC182768  Juncus phaeocephalus Peter Rubtzoff; Roman Gankin 1976-6-30 8702 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  CAS-BOT-BC210074  Juncus phaeocephalus Peter Rubtzoff 1980-8-4 9562 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  UCR279840  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1978-8-17 9259 San Mateo San Francisco Bay Region, San Bruno Mountain; 'saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction 220 Comment
  RSA783800  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1978-7-8 9226 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4037  Keckiella antirrhinoides var. antirrhinoides D. E. Breedlove 1971-5-31 19363 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  HSC23945  Kickxia spuria Mary Katherine Wicksten 1971-7-15 172 San Mateo Huddart Park, along wall in front of residence Comment
  JROH4040  Kickxia spuria Herbert Dengler 1958-9-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N.E. Nolan Ridge (the ridge N.E. of Corte Madera Cr.) by trail Comment
  CDA32415  Koeleria P. B. Kennedy 1928-5-2 San Mateo Hills east of Daly City 0 Comment
  JROH5272  Koeleria macrantha W. Lennihan 1990-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Escobar cutoff (Trail 15), left side of trail past exclosure. Comment
  RSA191942  Koeleria macrantha R. F. Thorne, P. Everett 1963-6-9 32229 San Mateo On top of San Bruno Mountain. 335 Comment
  SJSU1653  Koeleria macrantha D. R. Fincher 1955-5-29 San Mateo corner of Canada Road & Edgewood Road, San Mateo 503 Comment
  CAS-BOT-BC273731  Koeleria pyramidata E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Slope below Nike station Comment
  CAS-BOT-BC273734  Koeleria pyramidata Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Ridge above Buckeye Canyon Comment
  JROH953  Lactuca serriola John Hunter Thomas 1978-7-14 19264 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville entrance Comment
  CAS-BOT-BC341626  Lagophylla ramosissima J. McMurphy 1909-6-13 s.n. San Mateo San Bruno Hills Comment
  JROH5656  Lagophylla ramosissima John Rawlings 2014-5-23 1260 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 15. 190 Comment
  CAS-BOT-BC341630  Lagophylla ramosissima V. F. Hesse 1962-6-26 3153 San Mateo Alpine road, 2.6 miles west of Highway 5 457 Comment
  CAS-BOT-BC341636  Lagophylla ramosissima E. A. McGregor 1906-9-23 s.n. San Mateo Corte de Madera Comment
  POM283266  Lamium amplexicaule Lyman Benson 1930-4-17 2078 San Mateo Stanford University, foothills. Upper Sonoran. 122 Comment
  CAS-BOT-BC339053  Lasthenia californica A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339085  Lasthenia californica Roxana S. Ferris 1921-4-7 2128 San Mateo Santa Cruz Mountain Peninsula. San Bruno Mt. 213 Comment
  JEPS9815  Lasthenia californica subsp. californica R. F. Hoover 1939-4-21 4055 San Mateo 2 mi s Colma 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-BC324429  Lasthenia californica subsp. macrantha H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  SD38969  Lasthenia glabrata Delzie Demaree 1932-4-30 9083 San Mateo Alkali field near Moss Landing. Comment
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Feb 22 2015
  UC1142638  Lasthenia glabrata subsp. glabrata Edw. L. Greene 1886-5-11 San Mateo Belmont Comment
  RSA262209  Lasthenia glabrata subsp. glabrata John H. Thomas 1971-5-2 15794 San Mateo Near intersection of Canada and Edgewater roads; about 3 miles westward from Redwood City. 152 Comment
  JROH973  Lasthenia gracilis John H. Thomas 1966-4-6 11552 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA116657  Lasthenia macrantha subsp. macrantha H. L. Mason 1921-6-1 s.n . San Mateo Pebble Beach near Pescadero Comment
  SJSU11830  Lasthenia minor H. E. Henninger 1967-5-14 92 San Mateo Pigeon Point Comment
  SFV3758  Lasthenia minor B. J. McCaskill 1954-5-8 295 San Mateo Moss Beach. On bank above beach. 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
  JEPS22020  Lathyrus littoralis G. Thomas Robbins with S. Galen Smith 1958-6-9 3859 San Mateo 0.5 mi n bridge crossing Pescadero Creek (about 0.25 mi w of State Highway 1) Comment
  UCD106475  Lathyrus vestitus A. A. Heller 1907-4-20 8454 San Mateo San Bruno Hills. Comment
  POM319934  Lathyrus vestitus subsp. vestitus Barbara Shervanick 1973-4-1 818 San Mateo San Bruno Mt. at first summit at end of Crocker Rd. Comment
  UC75194  Lathyrus vestitus var. vestitus unknown 1903-4-6 1893 San Mateo San Bruno Hills Comment
  UC864588  Lathyrus vestitus var. vestitus Lewis S. Rose 1932-5-3 32208 San Mateo San Bruno 182 Comment
  UCR122978  Lavatera cretica George K. Helmkamp, E. A. Helmkamp 2001-6-2 6799 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  RSA434911  Lavatera cretica J. Doty 1969-3-24 580 San Mateo North side of Embarcadero Rd, just west of western boundary of Bysbee Marshlands Wildlife Preserve; Menlo Park. 2 Comment
  CAS-BOT-BC323177  Layia chrysanthemoides C. F. Baker no date on label 1894 San Mateo San Bruno Hills Comment
  RSA132690  Layia chrysanthemoides Donald A. Johansen 1933-5-27 803 San Mateo Field along Skyline Blvd. at jct of side road leading to Burlingame Comment
  UC89164  Layia chrysanthemoides K. Brandegee 1885-5-1 San Mateo Millbrae Comment
Read comments
Sep 9 2011
  CAS-BOT-BC321065  Layia gaillardioides Alice M. King 1917-4-24 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC321092  Layia gaillardioides Kellogg 1890-5-16 s.n. San Mateo Unspecified Comment
  CAS-BOT-BC321093  Layia gaillardioides W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula, hills SW of Baden Comment
  CAS-BOT-BC321099  Layia gaillardioides David D. Keck 1932-5-6 1483 San Mateo Hills W of Millbrae Highlands, just E of Skyline Blvd.. Comment
  CAS-BOT-BC321117  Layia gaillardioides David D. Keck 1932-5-11 1764 San Mateo 1.5 miles NE of La Honda, Santa Cruz Mountains Comment
  UC30641  Layia gaillardioides Ivar Tidestrom 1894-5-1 San Mateo Comment
  CAS-BOT-BC327482  Layia hieracioides M. S. Jussel 1931-4-18 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC327483  Layia hieracioides Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain; Devil's Arroyo Comment
  JROH987  Layia hieracioides John Hunter Thomas 1977-6-16 18772 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH990  Layia hieracioides John Hunter Thomas 1983-4-21 21636 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR256306  Layia hieracioides Peter Rubtzoff, Roman Gankin, Elizabeth McClintock, Bill Burley 1979-6-7 9289 San Mateo Central Coast, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains 220 Comment
  CAS-BOT-BC327455  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo Skyline Boulevard, east of Salada, northern San Mateo County. Comment
  CAS-BOT-BC327508  Layia hieracioides L. R. Abrams 1907-8-26 s.n. San Mateo King's Mt., Santa Cruz Mountain Peninsula Comment
  JROH982  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo Jasper Ridge Biological Preserve, Stanford University; along trail near Searsville Lake Comment
  RSA502396  Layia hieracioides D. W. Taylor 1989-4-18 10215 San Mateo Ridgetop between Ox Hill and Scarper Peak. 473 Comment
  UCSC007762  Layia hieracioides Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC382224  Layia platyglossa John Thomas Howell 1926-4-24 1924 San Mateo Daly City Comment
  JROH996  Layia platyglossa John H. Thomas 1973-4-14 16565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC382093  Layia platyglossa John H. Thomas 1971-5-2 15795 San Mateo Near interesection of Canada Road and Edgewater [Edgewood?] Road, about 3 miles westward from Redwood City 152 Comment
  CAS-BOT-BC382221  Layia platyglossa Donald A. Johansen 1932-5-21 687 San Mateo 1/2 mile north of Pigeon Point lighthouse. Comment
  CAS-BOT-BC534549  Lemna gibba W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Peninsula, Woodside Valley Ponds Comment
  POM185943  Lemna gibba A. D. E. Elmer 1903-07 4765 San Mateo San Pedro. Comment
  CAS-BOT-BC537272  Lemna minor D E Breedlove 1974-5-13 36220 San Mateo Brushy slopes San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC221522  Lepechinia calycina George Oberlander 1940-5-31 142 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC221523  Lepechinia calycina Walter Knight; Irja Knight 1964-5-19 s.n. San Mateo San Bruno Mountain. Crocker Hills Comment
  CAS-BOT-BC221529  Lepechinia calycina W. R. Dudley 1893-1-1 s.n. San Mateo Santa Cruz Peninsula. Near Belmont Comment
  CAS-BOT-BC221532  Lepechinia calycina Lewis S. Rose 1933-6-9 33225 San Mateo Belmont Comment
  CAS-BOT-BC221539  Lepechinia calycina Alice Eastwood 1912-6-10 338 San Mateo Crystal Springs Comment
  CAS-BOT-BC89135  Lepidium didymum H. L. Mason 1921-5-29 s.n. San Mateo Pebble Beach near Pescadero. Comment
  UCD115364  Lepidium didymum John H. Weiler; B. Hirano 1961-3-22 6132 San Mateo On a north slope near the edge of bluffs overlooking Moss Beach. Comment
  CDA19903  Lepidium latifolium D. Pendleton 2002-5-28 PDR P 120142 San Mateo San Francisco Bay Area; RR & Cedar St across the tracks from roller rink. 0 Comment
  CAS-BOT-BC12600  Lepidium nitidum Margaret A. Barry 1937-5-8 83 San Mateo On Coal Mine Ridge. Comment
  JROH1548  Lepidium nitidum John H. Thomas 1977-4-8 18521 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1555  Lepidium nitidum John Rawlings 2008-3-14 1032 San Mateo Jasper Ridge Biological Preserve, Stanford University. West Serpentine Chaparral 169 Comment
  CAS-BOT-BC12781  Lepidium perfoliatum David D. Keck 1932-3-24 1400 San Mateo Redwood City. At border of San Francisco Bay. Comment
  JROH1556  Lepidium pinnatifidum Herbert Dengler 1972-9-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of S.F. Cr. by old bridge site -- where entrance opposite Whiskey Hill leads some 1000' to S.F. Cr. crossing Comment
  POM282346  Leptosiphon ambiguus Lyman Benson 1931-3-15 2646 San Mateo Emerald Lake, Redwood City Comment
  POM65851  Leptosiphon ambiguus C. F. Baker 1902-5-4 753 San Mateo Woodside. Comment
  RSA128848  Leptosiphon androsaceus Roxana S. Ferris 1921-5-24 2192 San Mateo Bluffs, Pebble Beach near Pescadero. Comment
  JROH5928  Leptosiphon androsaceus Herb Dengler 1970-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  RSA12467  Leptosiphon androsaceus Harry A. Dutton 1900-4-3 5827 San Mateo Woodside serpentine [?] Comment
  JROH3189  Leptosiphon parviflorus John H. Thomas 1961-4-8 9077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0103655  Leptosiphon parviflorus C. B. Wolf 1929-5-25 3727 San Mateo Pebble Beach, S of Pescadero. Comment
  RSA0103660  Leptosiphon parviflorus Arthur L. Cohen 1935-4-21 629 San Mateo Jasper Ridge, Stanford U. Santa Cruz Range; San Francisco Bay watershed. 152 Comment
  UC133724  Leptosiphon rosaceus Dr. E. B. Copeland 1903-6-6 3300 San Mateo Montara Point Comment
  CAS-BOT-BC324060  Lessingia arachnoidea W. R. Dudley 1902-9-21 s.n. San Mateo East of Crystal Springs Reservoir, near fork to Alnus House, Santa Cruz Peninsula Comment
  CAS-BOT-BC324066  Lessingia arachnoidea A. D. E. Elmer 1902-8-1 4130 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC539289  Lessingia arachnoidea John Rawlings; Ken Hickman 2016-7-21 1906 San Mateo Caltrans right-of-way upslope from Hwy 92 W onramp to Hwy 280 N; downslope from San Francisco Watershed fenceline 122 Comment
  JEPS20591  Lessingia arachnoidea John Thomas Howell 1926-10-9 2220 A San Mateo near Crystal Springs Lake 91 Comment
  POM289269A  Lessingia arachnoidea Lyman Benson 1934-7-29 6109 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  UC662640  Lessingia arachnoidea L. S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon 90 Comment
  RSA0001372  Lessingia arachnoidea C. F. Baker 1902-9-2 1548 San Mateo Crystal Springs Lake. Comment
  JROH1008  Lessingia glandulifera var. glandulifera John H. Thomas 1961-6-7 9532 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1019  Lessingia glandulifera var. glandulifera John Hunter Thomas 1981-7-24 20727 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1023  Lessingia glandulifera var. glandulifera John Hunter Thomas 1983-7-7 22823 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-BC324172  Lessingia hololeuca Cherie Wetzel 1969-6-20 871 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC324173  Lessingia hololeuca John H. Thomas 1969-10-19 15479 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC324179  Lessingia hololeuca Ned Cahill 1974-10-8 378 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC324181  Lessingia hololeuca W. R. Dudley 1902-9-21 s.n. San Mateo Whipple Road, near Crystal Springs Lakes Comment
  CAS-BOT-BC324184  Lessingia hololeuca LeRoy Abrams 1900-10-1 1004 San Mateo Portola Comment
  CHSC39182  Lessingia hololeuca R. N. Bowman 1984-6-29 3693 San Mateo .7 m. e of Skyline Rd. on Crystal Springs Rd. 500 Comment
  JROH1031  Lessingia hololeuca Rachel Hays 1972-7-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC257355  Leucanthemum vulgare Peter Rubtzoff 1988-5-12 9922 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road between Bog Trail and Saddle Trail junctions. Comment
  CAS-BOT-BC444392  Lewisia rediviva John H. Thomas 1969-4-24 14901 San Mateo Near Canada College, Redwood City, near Farm Hill Drive. Comment
  UCD61335  Leymus californicus P. B. Kennedy 1916-5-7 San Mateo Crocker Estate, Burlingame. Comment
  UCD64593  Leymus mollis David L. Hanson 1976-3-23 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC272189  Leymus triticoides John H. Thomas 1960-6-25 8799 San Mateo Along or near a small creek running into Redwood slough between El Camino Real and railroad tracks near Maple Street, Redwood City 7 Comment
  SD38189  Limnanthes douglasii Edith A. Purer 1933-5-17 3626 San Mateo Skyline Blvd. above Spring Valley Lakes. Comment
  SEINET12182117  Limnanthes douglasii Unknown 1932-1 9103 San Mateo Roadside between Spring Valley Lakes and Sky Line Drive Comment
  CAS-BOT-BC258032  Limosella Peter Rubtzoff 1965-10-19 5661 San Mateo Pilarcitos Lake. Comment
  JROH4065  Limosella acaulis John Hunter Thomas 1985-8-7 23707 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS9791  Limosella aquatica Franklin P. Nutting 1893-7-16 San Mateo Lake San Andreas Comment
  UCSC004682  Linanthus androsaceus Randall Morgan 1994-4-13 2181 San Mateo Edgewood Park/Canada Road Comment
  CAS-BOT-BC123068  Linanthus croceus Alice Eastwood 1899-5-2 s.n. San Mateo Near Pt. San Pedro (Blenheim) Comment
  NY336940  Linanthus croceus A. Eastwood 1901-5-19 San Mateo Bleubuin? Comment
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Nov 16 2015
  SEINET3696192 Image available Linanthus liniflorus Lewis S. Rose 1932-5-3 32217 San Mateo San Bruno. 183 Comment
  UC729681  Linanthus parviflorus Carl B. Wolf 1929-4-24 3656 San Mateo back of Stanford University (sw end of Jasper Ridge); Jasper Ridge 152 Comment
  JROH5967  Linaria bipartita John Hunter Thomas 1982-5-25 20964 San Mateo Jasper Ridge Biological Preserve; roadside [Sand Hill Rd.] Comment
  CAS-BOT-BC389719  Lithocarpus densiflorus Virginia Welch 1972-9-25 63 San Mateo King Mt. Rd. above Huddart Park Entrance Comment
  CAS-BOT-BC36071  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-10-1 s.n. San Mateo Bear Gulch, Sierra Morena Comment
  UCD102692  Lithophragma affine E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains, 0.25 mile from Summit Loop trailhead on Guadeloupe Canyon Road. Comment
  JROH5903  Lithophragma heterophyllum M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 1 before reaching redwoods coming from the Dam Comment
  CAS-BOT-BC342309  Logfia filaginoides Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  JROH740  Logfia gallica John Hunter Thomas 1981-5-8 20552 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH746  Logfia gallica John Hunter Thomas 1989-5-9 24705 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1132203  Lolium multiflorum H. S. Yates 1935-5-8 5224 San Mateo 1 mi n Bolsa Pt.; Santa Cruz Quad. Comment
  UCSC003883  Lolium multiflorum P. Cornelius 1957-6-2 s.n. San Mateo 4 miles south of Half Moon Bay, DM Hwy 1 Hwy 1, Half Moon Bay Comment
  JROH5294  Lolium perenne W. Lennihan 1990-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 15 - path turnoff by black oak, bottom of swale. Comment
  CAS-BOT-BC269124  Lolium perenne W. R. Dudley No date on label s.n. San Mateo Santa Cruz Mountain Peninsula. Top of higher hills from Jersey Farm to Sneath's Ranch Comment
  RSA785895  Lolium perenne subsp. multiflorum Peter Rubtzoff 1977-6-21 9058 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction northwest of Fog Forest. Comment
  POM132621  Lomatium caruifolium C. F. Baker 1902-3-30 426 San Mateo Crystal Springs Lake Comment
  UC1073369  Lomatium caruifolium var. caruifolium George B. Rossbach 1955-3-26 373 San Mateo upper N slope, N of radio tower San Bruno Mountain 335 Comment
  UC21261  Lomatium caruifolium var. caruifolium Alice Eastwood April 1896 San Mateo on rd. to Crystal Springs Comment
  UC75213  Lomatium caruifolium var. caruifolium C. F. Baker 1902-3-30 426 San Mateo Crystal Springs Lake Comment
  JROH272  Lomatium macrocarpum John H. Thomas 1956-4-7 5625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH277  Lomatium macrocarpum John H. Thomas 1974-4-13 17149 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132981  Lomatium vaginatum C. F. Baker 1902-4-8 2751 San Mateo San Andreas Lake Comment
  CAS-BOT-BC240582  Lonicera hispidula Ned Cahill 1974-5-13 264 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC240583  Lonicera hispidula Ned Cahill 1974-5-13 263 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC240589  Lonicera hispidula J. I. McMurphy 1906-5-20 37 San Mateo Santa Cruz Peninsula. King's Mt., Santa Cruz Mts. Comment
  CAS-BOT-BC240607  Lonicera hispidula Margaret A. Barry 1937-6-24 182 San Mateo Coal Mine Ridge Comment
  CHSC56976  Lonicera hispidula Steven Triano 1988-5-24 183 San Mateo Along W side of Old La Honda Road ca 0.8 mi S of Portola Road and 4.0 mi S of woodside. 201 Comment
  JEPS85576  Lonicera hispidula var. vacillans Craig Dremann 1986-8-30 323 San Mateo e La Honda (along Cal. Highway 84 (Woodside-La Honda Road), mile marker 6.68, 150 ft w between road and creek) Comment
  CAS-BOT-BC243963  Lonicera involucrata var. ledebourii D. E. Breedlove 1974-5-13 36219 San Mateo San Pedro Valley Park, Pacific 152 Comment
  CAS-BOT-BC243970  Lonicera involucrata var. ledebourii David D. Keck 1938-5-30 4726 San Mateo San Gregorio 30 Comment
  JROH2046  Lotus corniculatus John Hunter Thomas 1982-5-18 20937 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing oval Comment
  RSA120409  Lotus formosissimus W. R. Dudley 1900-3-17 s.n. San Mateo Field above Seal Cove. Comment
  POM18350  Lotus micranthus C. F. Baker 1902-5-4 744 San Mateo Woodside. Comment
  UC69538  Lotus micranthus J. Burtt Davy 1893-6-22 1156 San Mateo Pilarcitos Comment
  UC311102  Lotus scoparius A. D. E. Elmer 1903-6-1 4447 San Mateo Belmont Comment
  UC1004320  Lotus tenuis W. A. Post Jul 1955 San Mateo Burlingame Comment
  POM276693  Lotus unifoliolatus Lyman Benson 1930-5-26 2142 San Mateo Stanford University. Lake Searsville. 152 Comment
  RSA120410  Lotus wrangelianus Ynez Henderson 1950-4-8 s.n. San Mateo San Francisquito Creek. Comment
  UC311390  Lupinus A. D. E. Elmer May 1903 4827 San Mateo Portola Comment
  CAS-BOT-BC198274  Lupinus unspecified 1982-4-24 s.n. San Mateo San Francisco Peninsula Comment
  IRVC28817  Lupinus P. W. Rundel 1962-7-27 1110 San Mateo Lake Tahoe, Emerald Bay. Sierra Nevada Ranges Comment
  JROH5696  Lupinus affinis John Rawlings 2013-4-2 1414 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bank above Rd E at eastern terminus of Trail 13. 110 Comment
  SBBG33485  Lupinus affinis A. D. E. Elmer -Apr-1903 5021 San Mateo Portola Comment
  CAS-BOT-BC195820  Lupinus albifrons var. albifrons L. R. A. 1902-4-13 2340 San Mateo San Mateo Canon [Canyon] 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-BC195800  Lupinus albifrons var. albifrons Charles Piper Smith 1947-4-25 47179 San Mateo Belmont, Skyline, west of Vanderlaan Summit Comment
  CAS-BOT-BC196108  Lupinus albifrons var. collinus Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC196128  Lupinus albifrons var. collinus A. D. E. Elmer 1903-5-1 4642 San Mateo San Bruno Hills Comment
  JEPS64928  Lupinus albifrons var. collinus Ivar Tidestrom 1894-3-22 San Mateo Comment
  UC1300892  Lupinus albifrons var. collinus Helen K. Sharsmith 1963-2-16 5139 San Mateo lower open slopes San Bruno Mountain (above Daly City); San Francisco Bay Region, slopes of San Bruno Mountain 106 Comment
  UCD106267  Lupinus albifrons var. collinus A. A. Heller 1907-4-25 8462 San Mateo San Bruno Hills. Comment
  SEINET10484531  Lupinus albifrons var. collinus Walter Knight, Irja Knight 1963-8-5 Knight s.n. San Mateo Motorcycle ridge, san bruno mountain Comment
  SEINET10970193  Lupinus albifrons var. collinus J. C. Downey 1955-4-2 Downey 212 San Mateo Near the twin peaks 213 Comment
  SEINET182859  Lupinus arboreus Unknown 1921-9-29 Unknown San Mateo Half Moon Bay. Comment
  SJSU10691  Lupinus arboreus H. L. Elliot 1958-5-31 111 San Mateo 8 mi S of Half Moon Bay Comment
  RSA134044  Lupinus arboreus var. arboreus W. R. Dudley 1893-5-17 s.n. San Mateo High Knoll in pasture above pass between Spring Valley Reservoir, above Millbrae, Santa Cruz Peninsula. Comment
  JROH5695  Lupinus bicolor John Rawlings 2015-3-31 1415 San Mateo Jasper Ridge Biological Preserve, Stanford University. In old quarry off of Trail 12 77 Comment
  UC1303121  Lupinus bicolor James McMurphy 1911-4-22 San Mateo near Stanford University Stanford Park; , Stanford Park Comment
  UC2049881  Lupinus bicolor H. W. Johansen 1955-4-9 29 San Mateo Jones Gulch, 5 miles S of La Honda. Comment
  SEINET5628404 Image available Lupinus bicolor A. A. Heller 1907-4-20 8451 San Mateo Near Lake Merced. Comment
  CAS-BOT-BC8211  Lupinus bicolor var. pipersmithii C. P. Smith 1908-4-13 1403 San Mateo Stanford University, near Cedro Cottage Comment
  SEINET10485250  Lupinus densiflorus var. palustris Charles Piper Smith 1947-4-25 Smith 47178 San Mateo Belmont, skyline, w of vanderlaan summit. Comment
  SEINET10490755  Lupinus formosus var. formosus Alice Eastwood, John Thomas Howell 1938-6-26 Eastwood 6077 San Mateo Crystal springs lake. Region of type locality. Comment
  RSA134073  Lupinus latifolius subsp. latifolius W. R. Dudley 1894-7-9 s.n. San Mateo Summit of Bear Gulch Road. Comment
  RSA15310  Lupinus latifolius subsp. latifolius Carl B. Wolf 1927-4-3 280 San Mateo 1 1/2 miles above east base of La Honda grade, Santa Cruz Mountains. Comment
  JROH2124  Lupinus latifolius var. latifolius John Hunter Thomas 1980-5-6 19921 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC201917  Lupinus microcarpus var. densiflorus A. D. E. Elmer June, 1903 4413 San Mateo Lake San Andreas Comment
  UC865131  Lupinus microcarpus var. densiflorus Lewis S. Rose 1939-5-13 39112 San Mateo w Burlingame 60 Comment
  UCD35769  Lupinus microcarpus var. densiflorus Beecher Crampton 1962-6-11 6484 San Mateo 5 miles west of Belmont, jct. Skyline Blvd. and Ralston Ave. Comment
  UC83087  Lupinus microcarpus var. densiflorus Katharine Brandegee April 1884 San Mateo Brighton Comment
  JROH2131  Lupinus nanus John H. Thomas 1976-4-30 18100 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH5565  Lupinus nanus John Rawlings 2013-4-19 1147 San Mateo Jasper Ridge Biological Preserve, Stanford University; south edge of Rd B along the northeast base of the powerline hillock 91 Comment
  SEINET12154596  Lupinus nanus M. T. Doutt 1931-1 s.n. San Mateo Skyline Blvd, W of Hillbrae Comment
  SEINET10903591  Lupinus nanus subsp. latifolius Charles Piper Smith 1947-4-25 Smith 47188 San Mateo Pebble beach (pescadero), hwy 1. Comment
  SEINET10486130  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-15 Dunn 2591 San Mateo Collected in vacant lots on both sides of sloat blvd. Just west of riverton Drive in san francisco. Comment
  POM11071  Lupinus succulentus A. D. E. Elmer 1903-05 4827 San Mateo Portola. Comment
  UC2049897  Lupinus succulentus H. W. Johansen 1955-4-10 51 San Mateo Pescadero Creek road, 4 miles E of Pescadero. Comment
  RSA181297  Lupinus succulentus John H. Thomas 1965-4-13 10565 San Mateo Along El Camino Real in San Carlos. Comment
  SBBG39517  Lupinus succulentus L. S. Rose 1970-5-9 70039 San Mateo Chateau Drive near Skyline, Hillsborough 91 Comment
  SEINET10969725  Lupinus vallicola subsp. apricus LeRoy R. Abrams 1914-4-20 Abrams 5128 San Mateo Type locality: the type was collected by baker, no. 610, 1902, At the same Station as the present specimens. The collector of the present specimens was With mr. Baker when the original specimens were collected. Grassy fields at The confluence of los troncos and san franciscquito creeks. Comment
  POM10796  Lupinus variicolor E. B. Copeland 1903-6-3 3301 San Mateo Montara Point Comment
  SEINET10936778  Lupinus variicolor Smith 1947-4-25 Smith 47185 San Mateo Pebble beach (pescadero), hwy 1. Banner white, wings violet blue. Comment
  SEINET12154796  Lupinus variicolor E. H. Graham 1931-1 6923 San Mateo Ano Nuevo Pt, S of San Francisco Comment
  CAS-BOT-BC441265  Luzula macrantha Margaret A. Barry 1937-4-21 7 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC441372  Luzula subsessilis George Oberlander 1950-4-16 639 San Mateo San Andreas Lake Comment
  JEPS101278  Luzula subsessilis Dean W. Taylor 1988-3-16 9405 San Mateo San Bruno Mountain, summit of mountain, along fire road ca. 120 m east from summit parking lot 371 Comment
  CAS-BOT-BC441366  Luzula subsessilis Javier Penalosa 1963-3-30 2723 San Mateo San Bruno Mountain: North of Randolph Drive at Hillside Blvd in South San Francisco 91 Comment
  UCD164090  Luzula subsessilis Peter Rubtzoff 1978-4-2 9151 San Mateo San Bruno Mtns. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction, on E rim of East Fork Colma Creek Canyon. Comment
  JROH3369  Lysimachia arvensis John Hunter Thomas 1986-4-20 19086 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5907  Lysimachia arvensis L. Nordby 1982-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Searsville Lab on the west side of the lake Comment
  JROH2949  Lythrum hyssopifolia John Hunter Thomas 1978-5-23 19226 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR122578  Lythrum hyssopifolia George K. Helmkamp, E. A. Helmkamp 2001-6-2 6794 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  RSA0011332  Lythrum hyssopifolia W. R. Dudley 1906-6-12 s.n. San Mateo W of Tripp s store, Woodside; Santa Cruz Mt Peninsula. Comment
  SEINET10452840  Lythrum hyssopifolia Mary Susan Taylor 1978-8-30 Taylor 1874 San Mateo Comment
  UC729632  Madia elegans Carl B. Wolf 1929-5-17 3713 San Mateo 1 mi w Skyline Blvd. (on Alpine Road) 304 Comment
  CAS-BOT-BC343912  Madia elegans David D. Keck 1932-6-18 1979 San Mateo Skyline Blvd., at Langley Hill. (S.W. of Stanford University) 600 Comment
  POM362143  Madia elegans subsp. elegans D. D. Keck 1931-10-5 1279 San Mateo Crystal Springs lake, E side Comment
  POM54251  Madia elegans subsp. vernalis A. D. E. Elmer 1903-05 4662 San Mateo Alpine School House. Comment
  CAS-BOT-BC344487  Madia exigua W. R. Dudley 1906-6-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Field E. of Kings Mt. House Comment
  CAS-BOT-BC344491  Madia exigua D. E. Breedlove 1974-5-13 36227 San Mateo Slopes San Pedro Valley Park, Pacifica 152 Comment
  JROH1052  Madia exigua John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC344494  Madia exigua George Oberlander 1949-7-30 320 San Mateo San Francisco Watershed Reserve. Near Lower Crystal Spr. Lake Comment
  CAS-BOT-BC343327  Madia gracilis L. R. Abrams 1920-6-1 7502 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  CAS-BOT-BC343337  Madia gracilis David D. Keck 1932-6-1 1787 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mtns. 305 Comment
  CHSC56970  Madia gracilis Steven Triano 1988-5-24 182 San Mateo Along w side of Old La Honda Road ca 0.6 mi s of Portola Road and 3.8 mi s of Woodside. 201 Comment
  JROH1068  Madia gracilis John H. Thomas 1961-5-5 9222 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1073  Madia gracilis John H. Thomas 1972-5-5 16080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1077  Madia gracilis John Hunter Thomas 1980-5-8 19946 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1080  Madia gracilis John Hunter Thomas 1981-5-21 20645 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1090  Madia gracilis John Hunter Thomas 1987-5-19 24295 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1092  Madia gracilis John Hunter Thomas 1988-5-12 24455 San Mateo Jasper Ridge Biological Preserve, Stanford University; by old quarry below dam Comment
  POM56191  Madia madioides C. F. Baker 1902-5-10 800 San Mateo Kings Mountain. Comment
  CAS-BOT-BC345114  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi. S.W. of Pescadero, within 100 m. of ocean Comment
  JROH1100  Madia sativa John H. Thomas 1971-8-7 16020 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1102  Madia sativa John H. Thomas 1973-6-10 16812 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD40001  Madia sativa Edith A. Purer 1933-7-27 5347 San Mateo 2.0 miles south of Pigeon Point. Comment
  RSA190268  Madia sativa D. D. Keck 1930-10-15 988 San Mateo SW of Woodside 457 Comment
  SEINET11810637  Madia sativa Unknown 1932-1 9191 San Mateo Los Francos Woods Comment
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Nov 1 2021
  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
  CAS-BOT-BC512109  Maianthemum racemosum subsp. amplexicaule Fred Hemphill 1973-4-22 701 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive 207 Comment
  CAS-BOT-BC512102  Maianthemum racemosum subsp. amplexicaule P. C. Wheeler 1966-4-24 s.n. San Mateo Trillium Canyon; San Bruno Mountain Comment
  SEINET12055169  Maianthemum racemosum subsp. amplexicaule Unknown 1914-1 s.n. San Mateo San Francisquito Creek Comment
  JROH4711  Maianthemum stellatum John Hunter Thomas 1978-4-28 19160 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM226215  Maianthemum stellatum Lewis S. Rose 1933-4-9 33070 San Mateo Belmont Comment
  RSA130385  Maianthemum stellatum H. A. Lewis 1908-04 s.n. San Mateo Los Trancos Woods Comment
  CAS-BOT-BC514165  Maianthemum stellatum Margaret A. Barry 1937-4-21 14 San Mateo Woods on Coal Mine Ridge Comment
  SD39132  Maianthemum stellatum Edith A. Purer 1933-4-11 3634 San Mateo Between Pescadero and Pegeon Point. Comment
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Oct 11 2021
  SEINET3992466  Maianthemum stellatum Unknown 1950-4-6 1809 San Mateo Shaded canyon above Visitation Valley, San Bruno Mountains Comment
  UCSB17388  Maianthemum stellatum Schulte, John 1963-4-9 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  UC138326  Malacothamnus davidsonii J. W. Congdon 1897-7-27 San Mateo Belmont Comment
  CAS-BOT-BC206248  Malacothamnus fasciculatus Josephine D. Randall 1907-7-24 249 San Mateo Crystal Springs Lake - Santa Cruz Peninsula Comment
  JROH2963  Malacothamnus fasciculatus John Hunter Thomas 1977-6-7 18732 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  HSC16000  Malva arborea P. A. Murphy 1965-4-16 45 San Mateo Half Moon Bay Comment
  SEINET7248026  Malva arborea D. R. Kaplan 1961-1 s.n. San Mateo 100 ft. East of Moss Beach Comment
  UCD54555  Malva arborea Ellen Dean; Tom Starbuck, Margaret Starbuck 2005-10-16 2745 San Mateo Town of Miramar, N of Half Moon Bay. Along Mirada Rd. on coastal bluff overlooking beach. Comment
  CAS-BOT-BC206685  Malva assurgentiflora Walter Knight; Irja Knight 1963-10-7 334 San Mateo Hillside Blvd. near Cypress Hill Golf Course, San Bruno Mountain Comment
  JROH2967  Malva nicaeensis John Hunter Thomas 1977-6-16 18803 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR121494  Malva nicaeensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4959 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
  RSA141089  Malva nicaeensis John H. Thomas 1960-6-25 8784 -B San Mateo Redwood City, in vacant lot near Main and Stambaugh Streets Comment
  CHSC39807  Marah fabacea Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  SJSU11761  Marah fabacea S. Anderson 1962-4-15 San Mateo Burlingame Hills near Burlingame Comment
  SJSU15423  Matricaria chamomilla Toni Corelli 2011-8-25 706 San Mateo Ano Nuevo State Park, along Hwy. 1 south of main entrance 28 Comment
  CAS-BOT-BC348193  Matricaria discoidea Philip C. Wheeler 1965-5-8 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  UCSB17213  Matricaria discoidea Schulte, John 1963-4-28 San Mateo On top of Jasper Ridge, 3 miles southwest of Stanford campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC422686  Meconella californica H. L. Mason 1928-2-22 4162 San Mateo San Bruno Mountains Comment
  UC306750  Meconella californica A. D. E. Elmer April 1903 4499 San Mateo San Mateo; toward Crystal Springs Lake Comment
  UC674717  Meconella californica Gregory Lyon 1934-3-17 41 San Mateo .75 mi e Skyline Blvd (Buri-Buri Ridge); Caroland's Tract 121 Comment
  JROH2152  Medicago arabica John H. Thomas 1971-4-24 15772 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2168  Medicago polymorpha John H. Thomas 1974-4-19 17161 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2174  Medicago polymorpha John Hunter Thomas 1988-5-5 24451 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC269471  Melica californica Javier Penalosa 1963-3-30 2754 San Mateo San Bruno Mountain. Crest of ridge SW of Brisbane, 750 ft. NW of power lines 304 Comment
  CAS-BOT-BC269474  Melica californica L. R. A. 1902-5-4 2407 San Mateo Woodside Comment
  RSA135746  Melica imperfecta W. R. Dudley 1900-3-17 s.n. San Mateo South slope of Montara Mt. Comment
  JROH5311  Melica subulata John Rawlings 2005-5-15 1005 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Trail 2 from 100 to 250 yards west of the zoology cabin site 82 Comment
  CAS-BOT-BC264245  Melica torreyana John H. Thomas 1971-5-2 15850 San Mateo Near intersection of Canada Road and Edgewood Road, about three miles westward from Redwood City 152 Comment
  SEINET206300 Image available Melica torreyana R. Bacigalupi, J Roof; L. Heckard 1961-4-24 7625 San Mateo Ridge below & SE of end of paved ridgetop rd E of KRON TV tower;Guadalupe Valley side San Bruno Summ 305 Comment
  JROH2182  Melilotus indicus John H. Thomas 1965-5-12 10646 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2190  Melilotus indicus John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC24045  Melilotus indicus Mary Katherine Wicksten 1971-6-15 12 San Mateo Huddart Park Rd. bank near office Comment
  POM284511  Melissa officinalis Lyman Benson 1937-8-15 8489 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains. 244 Comment
  POM284512  Melissa officinalis Lyman Benson 1937-7-15 8456 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  RSA582110  Mentha canadensis L. S. Rose 1936-9-13 36730 San Mateo Granada 2 Comment
  JROH2808  Mentha pulegium John H. Thomas 1974-10-26 17627 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2823  Mentha pulegium Carol Zabel 1989-8-11 25 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank, upstream from low-flow crossing on Road C Comment
  RSA131298  Mentha pulegium Roxana S. Ferris 1920-9-3 2050 San Mateo 2nd Mud Lake; Coal Mine Ridge Comment
  SEINET6627797 Image available Mentha spicata D. Aronson 1967-1 153 San Mateo East Palo Alto Comment
  JROH2827  Mentha suaveolens Ann Lambrecht 2007-8-15 30 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek Comment
  JEPS22980  Mercurialis annua V. Duran 1933-3-20 San Mateo near Montara Mountain Comment
  UCD144582  Mercurialis annua Greg Escoto 2014-2-21 s.n. San Mateo San Pedro Valley Park, a county park located at 600 Oddstad Blvd., Pacifica. Visitor Center flower beds. 55 Comment
  CDA4876  Mercurialis annua G. D. Barbe 1974-6-4 1826 San Mateo Sanchez Adobe County Park and Museum, Mira Mar Boulevard, Linda Mar District. 0 Comment
  RSA34831  Mercurialis annua I. L. Wiggins 1945-9-22 11195 San Mateo Cultivated fields in Pedro Valley, inland from Pedro Point. Comment
  CAS-BOT-BC438143  Mesembryanthemum nodiflorum D. E. Breedlove 1975-5-13 39400 San Mateo Old Belmont Dump, edge of salt flats at end of Ralston Avenue. Comment
  CAS-BOT-BC428907  Micranthes californica Paul Arnaud 1941-3-16 s.n. San Mateo Redwood City, near Hesler farm entrance - Hills. 45 Comment
  JROH3905  Micranthes californica D. D. Davis 1903-3-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3906  Micranthes californica John H. Thomas 1973-3-12 16483 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12273456  Micromeria chamissonis Unknown 22 May 1?32 6169 San Mateo Los Francos Woods Comment
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Nov 1 2021
  CAS-BOT-BC348723  Microseris bigelovii W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. West of Baden Comment
  UCD68979  Microseris douglasii P. Rodriguez-Rojo 1997-3-27 San Mateo Jaspen Ridge. Serpentine annual grasslands. UTM: 10SEM4168 155 Comment
  CAS-BOT-BC349031  Microseris douglasii subsp. douglasii John H. Thomas 1961-5-7 9259 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH1139  Microseris douglasii subsp. douglasii John H. Thomas 1956-4-7 5615 San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent slopes Comment
  CAS-BOT-BC349024  Microseris douglasii subsp. douglasii K. L. Chambers 1952-5-11 404 San Mateo 3.2 mi. s. of junction of Canada Road (from Woodside to Crystal Springs Lake), with Ralston Avenue (Belmont Road) Comment
  CAS-BOT-BC349034  Microseris douglasii subsp. douglasii Lewis S. Rose 1956-5-28 56079 San Mateo Skyline Blvd w. of San Mateo 182 Comment
  CAS-BOT-BC349148  Microseris douglasii subsp. tenella LeRoy Abrams 1902-5-4 2423 San Mateo Woodside Comment
  RSA116721  Microseris douglasii subsp. tenella Harry A. Dutton 1900-4-17 s.n. San Mateo Woodside Comment
  POM203100  Microseris douglasii subsp. tenella L. S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  CAS-BOT-BC349191  Microseris elegans R. E. Frenkel 1964-5-26 507 San Mateo On Whiting Ridge Fire Tr. Road, SFWD, 0.5 mile west of Spring Valley Ridge Road 304 Comment
  SEINET12269790  Mimulus aurantiacus Unknown 1932-1 9023 San Mateo Jasper Ridge Comment
  HSC59830  Mimulus aurantiacus var. aurantiacus Clark L. Miller 1978-6-15 1 San Mateo 6 mi. S of Half Moon Bay, off Hwy. 1, on Verde Rd. 61 Comment
  JROH4071  Mimulus aurantiacus var. aurantiacus Richard L. Garber 1971-5-18 21 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM5073  Mimulus aurantiacus var. aurantiacus Stewart H. Burnham 1894-4-21 s.n. San Mateo [Unspecified] Comment
  RSA420292  Mimulus aurantiacus var. aurantiacus Glenn A. Gorelick 1967-5-24 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco Comment
  UC1063413  Mimulus aurantiacus var. aurantiacus N. K. Carlson 1935-7-5 53 San Mateo 3 mi s Bellvale; Santa Cruz Quadrangle Comment
  POM5152  Mimulus cardinalis A. D. E. Elmer 1903-07 4941 San Mateo Lake San Andreas. Comment
  RSA217981  Mimulus guttatus Walter Knight, I. Knight 1963-7-14 274 San Mateo Base of Quarry 2. San Bruno Mtn. Comment
  UCD122715  Mimulus microphyllus R. S. Woglum 1935-5-25 996 San Mateo King City-Coalinga, along State Highway 198. Comment
  CAS-BOT-BC388835  Minuartia douglasii John H. Thomas 1971-5-2 15813 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC388825  Minuartia douglasii Arthur Spiegler 1952-5-10 80 San Mateo Jasper Ridge above Searsville Lake 457 Comment
  CAS-BOT-BC7363  Monardella franciscana Adolph Daniel Edward Elmer 1903-7-1 4766 San Mateo San Pedro Comment
  CAS-BOT-BC214068  Monardella villosa Elsie Zeile 1909-5-20 s.n. San Mateo Burlingame Comment
  CAS-BOT-BC214071  Monardella villosa Charles Piper Smith 1908-5-31 1444 San Mateo San Mateo Canyon Comment
  CAS-BOT-BC214083  Monardella villosa Josephine D. Randall 1907-6-29 177 San Mateo King's Mt. Road, Santa Cruz Peninsula 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-BC214089  Monardella villosa H. M. Hall 1924-1-1 11958 San Mateo S.W. side Montara Mt. Comment
  RSA18315  Monardella villosa Carl B. Wolf 1927-7-14 596 San Mateo Summit of Kings Mt. at junction with Skyline Drive Comment
  SEINET10582378  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 181 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  SEINET10961433  Monardella villosa subsp. franciscana A. Graff 1993-6-14 Graff 2 San Mateo 0.35 miles down Bean Hollow Road from its intersection with Pescadero Road, along right road cut. Windy, exposed, dry, steep, rocky cuts. Locally infrequent, with Artemisia californica, Baccharis pilularis, Mimulus aurantiacus, Eriophyllum stachaedifolium, Anaphalis margaritacea, Dudleya sp., Scrophularia californica, Eriogonum sp., grasses. Comment
  JROH2850  Monardella villosa subsp. villosa John Hunter Thomas 1988-6-2 24507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC327794  Monolopia gracilens W. R. Dudley 1893-5-27 s.n. San Mateo By La Honda road Comment
  JROH1158  Monolopia gracilens D. E. Breedlove 1971-5-11 19333 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
  RSA18087  Montia fontana subsp. variabilis C. B. Wolf 1929-4-29 3661 San Mateo 1 mile N of summit of La Honda Grade, Santa Cruz Mts. Comment
  SJSU1081  Muilla maritima C. W. Sharsmith 1951-4-6 5823 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  RSA120743  Myosotis latifolia S. S. Tillett, I. Sternback 1956-6-24 542 San Mateo Behind (n.) Portola Camp Store, just outside Portola State Park. 396 Comment
  UCSB21182  Myosotis latifolia Simpson, C. 1967-3-21 San Mateo Butano Creek; 2.6 miles east of junction of Cloverdale Rd. and Canon Road 45 Comment
  SEINET218191  Myosotis sylvatica Cynthia Taylor 1971-7-11 208 San Mateo Skyline Boulevard near La Honda Road., Santa Cruz Mountains. 445 Comment
  RSA152075  Myrica californica John H. Thomas 1962-3-24 9838 San Mateo Isenberg Ranch near Langley Hill. 549 Comment
  JROH2695  Myriophyllum aquaticum John Hunter Thomas 1983-5-31 22318 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA5318  Myriophyllum aquaticum G. D. Barbe, Tom Palmer, M. Keffer, J. Reppas 1978-11-8 2467 San Mateo Around the shores of Searsville Lake, Jasper Ridge Biological Preserve, Stanford University. 0 Comment
  UCD102559  Myriophyllum sibiricum Herbert L. Mason; Verne Grant 1946-8-28 13079 San Mateo North of San Francisco County Prison. Comment
  JROH2978  Myrtus communis John H. Thomas 1967-6-1 12980 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD87837  Nassella lepida Beecher Crampton 1962-6-11 6506 San Mateo Sharp Park, suburb of Pacifica, Mori's Point Road west of State Hwy. 1. Comment
  CAS-BOT-BC260237  Nassella pulchra H. A. Dutton 1900-2-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  CDA20725  Nassella tenuissima L. Kuwahara 2006-6-1 PDR 1359399 San Mateo East side of Skyline Blvd., 3/4 mile south of State Hwy. 92. =Stipa tenuissima, 2nd confirmed natural occurrence, 3 (so far) reported. Potential pest. Comment
  CAS-BOT-BC60475  Nasturtium officinale Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountains. Crocker Avenue. Comment
  UC856873  Navarretia heterodoxa Lewis S. Rose 1941-6-12 41269 San Mateo hills w Redwood City; Emerald Lake 121 Comment
  JROH3199  Navarretia heterodoxa John H. Thomas 1963-6-23 10165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near exclosure on northern slope of ridge. Comment
  POM226867  Navarretia mellita L. R. Abrams 1914-7-1 5224 San Mateo Searsville Lake. Comment
  JROH3217  Navarretia squarrosa John Hunter Thomas 1983-7-20 22892 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM65143  Navarretia squarrosa C. F. Baker 1903-6-30 3356 San Mateo Crystal Springs. Comment
  SD3919  Navarretia squarrosa Ulysses S. Grant 1925-9-2 San Mateo Burlingame Comment
  RSA15266  Nemophila menziesii var. menziesii Carl B. Wolf 1927-3-2 230 San Mateo Above Searsville Lake. Comment
  POM65449  Nemophila menziesii var. menziesii A. D. E. Elmer 1903-04 4737 San Mateo Cemeteries Comment
  RSA14384  Nemophila menziesii var. menziesii Elmer I. Applegate 1895-3-3 355 San Mateo Lobitas. Comment
  CAS-BOT-BC219471  Nemophila parviflora Margaret A. Barry 1937-5-15 122 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC219482  Nemophila parviflora J. H. Thomas 1954-4-15 3906 San Mateo About 1 1/2 mile SW of Searsville Lake 228 Comment
  CAS-BOT-BC219483  Nemophila parviflora Ira L. Wiggins 1925-4-1 1670 San Mateo On Kings Mountain Road above Woodside Comment
  RSA152238  Nemophila parviflora var. parviflora I. L. Wiggins 1925-04 1670 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  JROH2456  Notholithocarpus densiflorus var. densiflorus Toni Corelli 2011-10-4 373 San Mateo Jasper Ridge Biological Preserve, Stanford University; across from Douglas' iris site, west of Trail 20 87 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-BC140437  Oemleria cerasiformis James R. Shevock 1973-1-1 2325 San Mateo Along Skyline Drive, Calif. highway 35. Near Lower Crystal Springs Reservoir Comment
  CAS-BOT-BC140445  Oemleria cerasiformis A. D. E. Elmer 1903-3-1 4579 San Mateo Woodside Comment
  JROH3707  Oemleria cerasiformis John H. Thomas 1968-3-17 14184 San Mateo Jasper Ridge Biological Preserve, Stanford University. Brush slope at arm of Lake Comment
  SJSU8083  Oemleria cerasiformis S. H. Casey 1969-5-18 261 San Mateo 0.25 SE of San Bruno Mt summit Comment
  JROH283  Oenanthe sarmentosa James McMurphy 1906-8-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  UC652594  Oenothera elata subsp. hookeri L. R. Abrams and Ira Wiggins 1939-6-3 438 San Mateo 2 mi n Pigeon Point Lighthouse Comment
  RSA18444  Oenothera elata subsp. hookeri Carl B. Wolf 1927-6-29 564 San Mateo 3 miles south of San Gregorio. Comment
  RSA648323  Oenothera ovata J. Doty 1969-3-27 606 San Mateo San Gregorio State Beach Park. 15 Comment
  UCD106882  Oenothera perennis T. C. Fuller 1970-5-12 19529 San Mateo Emily (Mrs. Hillary) Brown prop., 3045 Ralston Ave., Burlingame. Comment
  CAS-BOT-BC500320  Orobanche uniflora subsp. occidentalis George Oberlander 1951-3-30 1172 San Mateo San Francisco Watershed Reserve: San Andreas Valley Comment
  RSA155563  Orthocarpus densiflorus L. S. Rose 1961-4-5 61035 San Mateo San Bruno Mountains. 366 Comment
  RSA92815  Orthocarpus densiflorus Peter H. Raven 1950-4-16 1776 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  POM126839  Orthocarpus erianthus var. roseus M. S. Baker 1904-05 s.n. San Mateo Ocean View. Comment
  RSA14200  Orthocarpus faucibarbatus var. albidus Carl B. Wolf 1927-1-29 181 San Mateo Near the coast at Pescadero. Comment
  POM49732  Orthocarpus floribundus L. R. Abrams 1902-4-13 2321 San Mateo San Andreas Lake. Comment
  RSA14128  Orthocarpus lithospermoides Elmer I. Applegate 1895-5-11 392 San Mateo Near Searsville. Comment
  RSA88573  Orthocarpus lithospermoides L. S. Rose 1954-5-17 54043 San Mateo Emerald Lake, E of Redwood City. 183 Comment
  POM226857  Orthocarpus pusillus L. R. Abrams 1935-4-2 5079 San Mateo Menlo Heights. Comment
  JROH3091  Oxalis micrantha John Rawlings 2013-4-3 1161 San Mateo Jasper Ridge Biological Preserve, Stanford University; restricted to a small area on verge of Trail 11 in chaparral 143 Comment
  POM87796  Oxalis oregana L. R. Abrams 1902-3-16 2279 San Mateo Kings Mountain. Comment
  RSA120752  Oxalis oregana S. S. Tillett, I. Sternback 1956-6-24 524 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  RSA130338  Oxalis oregana M. N. paulson 1915-4-10 s.n. San Mateo Kings Mountain. Comment
  UCD110979  Oxalis oregana Janet Jacob 1951-4-1 60 San Mateo 7 miles east of Pescadero. Comment
  POM353455  Oxalis oregana J. Doty 1969-3-26 602 San Mateo State Highway 34, 6 miles north of its junction with State Highway 38. Comment
  SEINET10969325  Oxalis oregana R. D. Sage 1992-1-6 Sage 13395 -1 San Mateo Collected at purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  UCSB24631  Oxalis oregana Masere, Ann 1967-3-21 San Mateo Butano Creek in Butano Canyon, 3.3 miles east of junction of Cloverdale Road and Canyon Road on Canyon Road 106 Comment
  UC175966  Packera breweri A. A. Heller 1907-5-23 8565 San Mateo back of San Mateo (on the Half Moon Bay road) Comment
  JROH5339  Panicum capillare Ann Lambrecht 2006-8-23 29 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek near Dennis Martin marker. 71 Comment
  CAS-BOT-BC253791  Panicum hillmanii Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountains. Brisbane Lagoon near railroad tracks Comment
  CAS-BOT-BC253972  Parapholis incurva V. F. Hesse 1964-5-26 3210 San Mateo Near (S of) Pigeon Point 15 Comment
  UC1101573  Parapholis incurva Malcolm A. Nobs and S. Galen Smith 1949-8-26 1604 San Mateo Hwy 1, 0.6 mi n Pigeon Point Comment
  UC1101574  Parapholis incurva Malcolm A. Nobs and S. Galen Smith 1949-8-24 1566 San Mateo marshes at Sharp Park; marshes at Sharp Park Comment
  CAS-BOT-BC265662  Paspalum distichum Ira L. Wiggins 1980-8-29 22265 San Mateo Bed of San Francisquito Creek, ca 50 m upstream from Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC265663  Paspalum distichum Ira L. Wiggins 1980-8-29 22260 San Mateo San Francisquito Creek, 200 m upstream from Pope Street bridge, Menlo Park Comment
  JROH5345  Paspalum distichum John H. Thomas 1964-11-5 10521 San Mateo Jasper Ridge Biological Preserve, Stanford University. East end of Searsville Dam Comment
  JROH5346  Paspalum distichum John H. Thomas 1978-9-24 19340 San Mateo Jasper Ridge Biological Preserve, Stanford University. East end of dam. Comment
  JEPS10360  Pedicularis densiflora W. L. Jepson 1922-3-19 9544 San Mateo Buri-Buri Ridge Comment
  JROH4113  Pedicularis densiflora John H. Thomas 1974-4-13 17150 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4114  Pedicularis densiflora John H. Thomas 1976-4-2 18080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG34023  Pedicularis densiflora L. S. Rose 1969-3-27 San Mateo 2 mi NW of Woodside 182 Comment
  RSA125134  Pedicularis dudleyi E. F. Sprague 1956-5-28 1701 San Mateo Portola State Park, about campground headquarters 305 Comment
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Mar 2 2010
  RSA125135  Pedicularis dudleyi E. F. Sprague 1957-5-25 1702 San Mateo Portola State Park, about campground area 305 Comment
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Mar 2 2010
  UCD39772  Pelargonium quercifolium Beecher Crampton 1977-2-19 s.n. San Mateo San Mateo County. Brisbane. A garden ornamental. Comment
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Apr 9 2009
  JROH103  Pellaea andromedifolia John Hunter Thomas 1982-11-8 21257 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Path below dam Comment
  SEINET4555767 Image available Pellaea andromedifolia John P. Young 1925-1-9 San Mateo Burlingame Comment
  RSA681602  Penstemon heterophyllus Annuschka Deb 1989-6-13 244 San Mateo Yerba Buena Nursery, next to prop house. Comment
  CAS-BOT-BC327979  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto. 182 Comment
  RSA0008523  Pentachaeta bellidiflora Susan Sommers, Toni Corelli 1983-4-2 s.n. San Mateo W of middle bend in Hwy 280, S of Edgewood Road overcrossing. 122 Comment
  POM88667  Pentachaeta exilis L. R. Abrams 1901-4-20 1533 San Mateo Mint [difficult to read] Bells Road. Comment
  JROH111  Pentagramma triangularis subsp. triangularis John H. Thomas 1974-11-5 17663 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail below dam. Comment
  POM259787  Perideridia gairdneri subsp. gairdneri I. L. Wiggins, Roxana Ferris 1939-8-2 9295 San Mateo Ano Nuevo Point Comment
  JROH308  Perideridia kelloggii John H. Thomas 1970-7-5 15661 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH309  Perideridia kelloggii John H. Thomas 1972-8-18 16148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH310  Perideridia kelloggii John H. Thomas 1972-8-18 16148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3248  Persicaria amphibia John H. Thomas 1974-8-3 17496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC413609  Persicaria amphibia W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. North Pond - north end of county Comment
  JROH3279  Persicaria maculosa Toni Corelli 2004-10-20 281 a San Mateo Jasper Ridge Biological Preserve, Stanford University; below low flow crossing along Road C, on a moist embankment 79 Comment
  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
  UC1047010  Phacelia californica L. R. Heckard 1953-4-15 339 San Mateo high bluffs above ocean; Pedro Point Comment
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Jun 6 2008
  JEPS2271  Phacelia ciliata var. ciliata L. T. Dempster 1935-3-31 San Mateo near east end of San Mateo Bridge Comment
  UC1084388  Phacelia divaricata G. Thomas Robbins 1937-4-11 96 San Mateo near Spring Valley Lakes (along road to Woodside) Comment
  RSA184848  Phacelia malvifolia L. S. Rose 1965-5-3 65057 San Mateo San Bruno Mountain, Colma Canyon. 61 Comment
  UC206190  Phacelia malvifolia Katharine Brandegee San Mateo Montara Point Comment
  CDA40397  Phacelia nemoralis E. L. Labadie Jr. 1961-6-6 s.n. San Mateo Burlingame. 0 Comment
  JROH2765  Phacelia rattanii D. E. Breedlove 1971-5-11 19332 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  JROH2766  Phacelia rattanii Woody Woodward 1979-5-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU5407  Phaedranthus buccinatorius A. J. Cortopassi 1959-5-9 San Mateo 2319 Hillsdale Dr, Burlingame Comment
  JROH5358  Phalaris aquatica John Hunter Thomas 1979-5-22 19577 San Mateo Jasper Ridge Biological Preserve, Stanford University. In parking lot. Comment
  CAS-BOT-BC259001  Phalaris californica A. D. E. Elmer 1903-6-1 4699 San Mateo Crystal Springs Lake Comment
  RSA100972  Phalaris californica G. Oberlander 1949-4-2 27 San Mateo North Cahill; San Francisco Watershed Reserve Comment
  POM199090  Phalaris minor A. D. E. Elmer 1903-06 4427 San Mateo Crystal Springs Lake. Comment
  SEINET10657416  Phalaris minor Robert V. Bradshaw 1922-4-30 Bradshaw 2675 San Mateo Sandhill road near Searsville Lake Comment
  RSA132361  Phoradendron villosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge, about 5 miles SW of Palo Alto. 152 Comment
  JROH3728  Physocarpus capitatus John Hunter Thomas 1979-6-12 19593 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing Comment
  UC114306  Physocarpus capitatus C. F. Baker 1902-5-4 747 San Mateo Woodside Comment
  CDA28804  Pickeringia montana D. G. Kelch 2009-6-9 9 .39 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
  HSC23884  Pickeringia montana Mary Katherine Wicksten 1971-6-15 18 San Mateo Huddart Park near horse ring Comment
  SEINET3871791  Pinus attenuata K. Allred 1975-1-3 1267 San Mateo Half Moon Bay, Dune Beach.; 0 Comment
  CAS-BOT-BC136530  Piperia candida W. R. Dudley 1905-6-18 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137315  Piperia elegans L. R. Abrams 1909-8-2 4274 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC389707  Piperia elegans L. Sigal 1969-8-1 51 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC389680  Piperia unalascensis Mary Wicksten 1970-6-25 51 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC228128  Plagiobothrys chorisianus Alice Eastwood 1916-6-18 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC228141  Plagiobothrys chorisianus Alice Eastwood 1915-6-13 4717 San Mateo Granada Comment
  CAS-BOT-BC228138  Plagiobothrys chorisianus Roxana S. Ferris 1920-4-26 1979 San Mateo The Santa Cruz Mountain Peninsula. Lagoon at head of New Years Point 15 Comment
  CAS-BOT-BC228153  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1898-4-24 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near El Corte Madera Creek Comment
  CAS-BOT-BC228159  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-4 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near Crystal Springs Lake Comment
  JEPS85235  Plagiobothrys diffusus Roy E. Buck and James A. West 1985-4-29 527 San Mateo in and adjacent to shallow watercourse at head of minor gulch just n Whitehouse Canyon Rd. (ca 0.8 air km ne of Whitehouse Canyon Rd.-CA Hwy 1 jct, 1.0 air km ene of Franklin Point); Cascade Ranch 60 Comment
  JROH1433  Plagiobothrys nothofulvus John Hunter Thomas 1991-4-11 24979 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCD120893  Plagiobothrys nothofulvus R. E. Dengler 1960-4-12 20 San Mateo Jasper Ridge, Stanford Biological Reserve. 121 Comment
  CAS-BOT-BC389766  Plagiobothrys tenellus R. D. Hennessey 1964-4-26 s.n. San Mateo Area where Pilarcitos Creek empties into ocean Comment
  CHSC57023  Plantago coronopus Steven Triano 1988-5-24 194 San Mateo Located ca. 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  UCSC007767  Plantago coronopus Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park 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
  JEPS22019  Plantago elongata G. Thomas Robbins with S. Galen Smith 1958-6-9 3860 San Mateo .12 mi w State Highway 1 (0.5 mi n of bridge crossing Pescadero Creek) Comment
  JROH3110  Plantago erecta John H. Thomas 1961-4-29 9177 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3112  Plantago erecta John H. Thomas 1974-4-13 17151 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  RSA153467  Plantago erecta John H. Thomas 1961-5-7 9250 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  SBBG33953  Plantago erecta L. S. Rose 1966-5-2 San Mateo Emerald Lake, W of Redwood City 91 Comment
  RSA176597  Plantago hirtella var. galeottiana John H. Thomas 1964-6-19 10433 San Mateo Near Pigeon Pt. Lighthouse. Comment
  UC1125643  Plantago lanceolata N. K. Carlson 1935-6-29 100 San Mateo 1.5 mi se Pescadero Pt.; Santa Cruz Quad. 91 Comment
  JROH5882  Plantago lanceolata J. C. Gaither Jr. 1982-4-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; inside Sand Hill Road gate near old motorcycle racetrack Comment
  JEPS24268  Plantago subnuda J. H. Thomas 1959-7-8 8016 San Mateo Pescadero Beach Comment
  CAS-BOT-BC92015  Platystemon californicus John H. Thomas 1969-4-24 14904 San Mateo near Canada College, Redwood City, near Farm Hill Drive. Comment
  RSA445724  Platystemon californicus var. californicus L. S. Rose 1937-4-24 37230 San Mateo Emerald Lake, west of Redwood City 107 Comment
  CAS-BOT-BC260965  Pleuropogon californicus var. californicus George Oberlander 1950-6-3 614 San Mateo San Francisco Watershed Reserve Comment
  POM284984  Pleuropogon californicus var. californicus Lyman Benson 1930-4-26 2060 San Mateo Stanford University. 122 Comment
  UC1537366  Poa douglasii Gordon H. True Jr. 1937-3-31 618 San Mateo Salada Beach 60 Comment
  JROH5413  Poa howellii John Rawlings 2013-4-16 1137 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension south of the Dengler Transect after a short uphill section where the trail passes below a boulder. 84 Comment
  CAS-BOT-BC255782  Poa infirma Walter Knight; Irja Knight 1967-5-16 s.n. San Mateo Randolph Ave., South San Francisco, San Bruno Mountain Comment
  SEINET10602237  Poa nevadensis Edwin B. Copel 1903-4-20 Copeland 1920 San Mateo San Andreas Lake, Ca. Tufts about hill tops. Comment
  JROH5414  Poa pratensis subsp. pratensis Herbert Dengler 1957-5-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassland N.E. of serp. ca. 100 yds. Comment
  JROH5417  Poa pratensis subsp. pratensis John Hunter Thomas 1982-6-7 21028 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204948  Poa secunda E. B. Copeland 1903-4-20 1920 San Mateo San Andreas Lake Comment
  RSA135725  Poa secunda W. R. Dudley 1900-3-18 s.n. San Mateo San Andreas Lake Comment
  UCD90414  Poa secunda August L. Hormay 1932-5-29 s.n. San Mateo San Bruno to San Francisco Bay shore highway. Comment
  CAS-BOT-BC539283  Poa secunda subsp. secunda John Rawlings; Ken Hickman 2015-6-8 1575 San Mateo Caltrans right-of-way above Hwy 92 E of Hwy 280, downslope from San Francisco Watershed fenceline 118 Comment
  JEPS85226  Pogogyne serpylloides Roy E. Buck and James A. West 1985-6-3 532 San Mateo Cascade Ranch. On old ranch road S of Whitehouse Canyon Rd. Just E of minor gulch draining SSE into small lake ca. 2.1 air km NE of Whitehouse Canyon Rd. CA Hwy. 1 junction 3.2 air km ENE of Franklin Point. 97 Comment
  CAS-BOT-BC232895  Polemonium carneum L. R. Abrams 1916-4-22 5576 San Mateo Santa Cruz Mountain Peninsula. Pilarcitos Canon Comment
  POM64835  Polemonium carneum L. R. Abrams 1916-4-22 5576 San Mateo Santa Cruz Mountains Peninsula: Pilarcitos Canyon Comment
  CAS-BOT-BC413803  Polycarpon tetraphyllum Robert I. Gilbreath 1974-5-1 0062 San Mateo On hills near Hillsborough 152 Comment
  UCSC007771  Polycarpon tetraphyllum var. tetraphyllum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  RSA120735  Polygala californica S. S. Tillett, I. Sternback 1956-6-24 531 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  UC1080546  Polygala californica S. S. Tillett and I. Sternback 1956-6-24 531 San Mateo behind (n) Portola Camp Store (just outside Portola State Park); Middleton Property Comment
  UC1481762  Polygonum C. C. Hall 1922-5-17 108 -7 San Mateo Montara Comment
  CAS-BOT-BC109239  Polygonum paronychia V. F. Hesse 1954-7-30 1343 San Mateo Near Pebble Beach. 15 Comment
  CAS-BOT-BC109246  Polygonum paronychia Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountains. Colma Canyon. Comment
  UCR240610  Polygonum paronychia T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3526 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  JEPS50659  Polygonum punctatum W. L. Jepson 1910-8-18 4159 San Mateo Butano Creek Comment
  UC42913  Polypodium J. Burtt Davy 1893-6-22 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC72106  Polypodium scouleri Dustin Chivers 1963-9-22 s.n. San Mateo Chinese Cemetery Rd., 100 yards east of intersection of this road and Skyline Blvd., Colma Comment
  CAS-BOT-BC233156  Polypogon interruptus A. D. E. Elmer 1903-7-1 4694 San Mateo Pilarcitos Stone Dam Comment
  JROH5429  Polypogon interruptus John H. Thomas 1961-6-14 9545 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along stream below dam. Comment
  CAS-BOT-BC233150  Polypogon interruptus L. R. Abrams 1927-7-15 12190 San Mateo Skyline Blvd back of South San Francisco Comment
  CAS-BOT-BC237355  Polypogon monspeliensis S. D. Halsey 1908-11-7 s.n. San Mateo Salt marsh near Cooleys Landing Comment
  JROH5456  Polypogon monspeliensis John Hunter Thomas 1987-5-5 24242 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1100390  Polypogon monspeliensis Herbert L. Mason and Verne Grant 1946-8-28 13094 San Mateo pond on Highway 5 about 3 mi s Daly City Road Comment
  JROH4813  Polypogon viridis John Hunter Thomas 1979-5-22 19573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC72151  Polystichum californicum W. R. Dudley 1905-6-19 s.n. San Mateo near Camp on Pescadero Creek, Santa Cruz Mountains Comment
  CAS-BOT-BC72225  Polystichum dudleyi George Oberlander 1950-7-15 1026 San Mateo Pilarcitos Canyon Comment
  SEINET10665573 Image available Polystichum dudleyi William R. Dudley 1903-5-2 Dudley s.n. San Mateo Near bridge. Peters Creek. Santa Cruz Mts. Comment
  UC4940  Populus alba J. Burtt Davy Jun 21 1893-Jun 23 1893 1128 San Mateo Millbrae Comment
  CAS-BOT-BC105564  Populus trichocarpa J. Ed. McClellan; Bonnie McClellan 1976-3-24 s.n. San Mateo Pilarcitos Creek (west of the Coast Highway) at Half Moon Bay Comment
  CAS-BOT-BC267165  Potamogeton foliosus W. R. Dudley 1906-10-12 s.n. San Mateo Santa Cruz Mountain Peninsula. Mud Lakes, Coalmine Ridge, Pond 1 Comment
  UC813943  Potamogeton nodosus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9292 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC453832  Potamogeton nodosus V. F. Hesse 1961-8-24 3020 San Mateo About 4 miles south of Pescadero 60 Comment
  UC814176  Potamogeton pectinatus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9293 San Mateo Ano Nuevo Point 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
  JEPS44182  Potentilla anserina subsp. pacifica Alice King 1908-7-25 San Mateo near San Francisco (Moss Beach); Moss Bearch Comment
  SEINET5568963  Potentilla glandulosa H. S. Gentry 1931-1 83 San Mateo 1 mile SE of Holy Cross Cemetery. Comment
  JROH4673  Prosartes hookeri John H. Thomas 1973-5-5 16761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4674  Prosartes hookeri John H. Thomas 1979-4-10 19448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC516357  Prosartes hookeri Ira L. Wiggins 1928-4-14 2912 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC516361  Prosartes hookeri Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo, San Bruno Mountain Comment
  CAS-BOT-BC517392  Prosartes smithii A. D. E. Elmer 1903-5-1 4697 San Mateo Butano Creek Comment
  CAS-BOT-BC517399  Prosartes smithii A. D. E. Elmer 1903-5-1 4697 San Mateo Butano Creek Comment
  SEINET8907180  Prunella vulgaris subsp. lanceolata A. D. 1974-1 San Mateo Hwy. 35; ca. 4 mi. from Jct 35 & 92 610 Comment
  JROH2868  Prunella vulgaris var. lanceolata Toni Corelli 2005-7-13 294 b San Mateo Jasper Ridge Biological Preserve, Stanford University; lower fire Road C, about 20 m south of low flow crossing along road 80 Comment
  UC449935  Prunella vulgaris var. lanceolata Franklin P. Nutting 1893-7-15 San Mateo near Lake San Andreas; near Lake San Andreas Comment
  RSA101018  Prunella vulgaris var. lanceolata G. Oberlander 1941-7-30 331 San Mateo Cahill Ridge, San Francisco Watershed Reserve Comment
  RSA218028  Prunella vulgaris var. lanceolata Walter Knight, I. Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC158178  Prunus emarginata George Oberlander 1950-5-21 956 San Mateo Southern Cahill Ridge Comment
  CAS-BOT-BC154495  Prunus ilicifolia Josephine D. Randall 1907-6-6 328 San Mateo Los Trancos Road near Stanford University Comment
  CAS-BOT-BC154503  Prunus ilicifolia Phillip Wheeler 1965-6-7 s.n. San Mateo Between Owls Canyon and Buckeye Canyon Comment
  CAS-BOT-BC154650  Prunus subcordata A. D. E. Elmer 1903-4-1 4533 San Mateo Portola Comment
  JROH3749  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Zoo shack Comment
  CAS-BOT-BC156355  Prunus virginiana var. demissa Phillip C. Wheeler 1965-5-18 s.n. San Mateo Mouth of Colma Canyon, north facing slope Comment
  RSA681426  Prunus virginiana var. demissa Annuschka Deb, Lori Hubbart 1989-5-10 208 San Mateo Santa Cruz Mtns. Skyline Blvd S of Yerba Buena Nursery (YBN) Comment
  JROH755  Pseudognaphalium californicum John H. Thomas 1961-6-7 9534 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH758  Pseudognaphalium californicum John H. Thomas 1971-5-30 15971 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH759  Pseudognaphalium californicum John H. Thomas 1971-5-30 15971 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH760  Pseudognaphalium californicum D. E. Breedlove 1971-5-31 19386 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH766  Pseudognaphalium californicum John Hunter Thomas 1980-5-8 19940 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC356862  Pseudognaphalium californicum Barrett Anderson; Peter Rubtzoff 1988-4-22 3658 San Mateo San Bruno Mountain. Saddle area north of Guadalupe Canyon Parkway 275 Comment
  CAS-BOT-BC356863  Pseudognaphalium californicum Elizabeth McClintock 1972-5-10 s.n. San Mateo San Bruno Mountain. Slope above parking lot, summit of mountain Comment
  CAS-BOT-BC356869  Pseudognaphalium californicum R. E. Frenkel 1963-12-7 337 San Mateo On Spring Valley Ridge Road, SFWD, at junction of Spring Valley Ridge and Whiting Ridge Roads 347 Comment
  CAS-BOT-BC357120  Pseudognaphalium luteoalbum John Thomas Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  JROH775  Pseudognaphalium luteoalbum John H. Thomas 1970-7-5 15657 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM358830  Pseudognaphalium luteoalbum E. A. Purer 1933-8-13 5427 San Mateo Belmont Comment
  CAS-BOT-BC357130  Pseudognaphalium luteoalbum L. R. Abrams; I. L. Wiggins 1939-6-3 431 San Mateo Ano Nuevo Point Comment
  HSC23946  Pseudognaphalium luteoalbum Mary Katherine Wicksten 1971-6-16 13 San Mateo Huddart Park; dry bank by horse ring Comment
  JROH778  Pseudognaphalium luteoalbum John H. Thomas 1976-10-16 18400 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH784  Pseudognaphalium luteoalbum John Hunter Thomas 1986-5-6 24001 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bath house Comment
  SD27905  Pseudognaphalium microcephalum Carl B. Wolf 1927-8-13 715 San Mateo Woodside. Comment
  CAS-BOT-BC357509  Pseudognaphalium ramosissimum John H. Thomas 1976-10-7 18391 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south of Pescadero 30 Comment
  CAS-BOT-BC357503  Pseudognaphalium ramosissimum Peter Rubtzoff 1975-10-4 8420 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Dry, open slope just north of Guadalupe Canyon Parkway Comment
  JROH807  Pseudognaphalium ramosissimum Herb Dengler 1972-8-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on trail along SF Creek 1000 feet below tiger lily site, where the trail rises to its locally highest elevation Comment
  CAS-BOT-BC344869  Pseudognaphalium stramineum Peter Rubtzoff 1975-11-8 8438 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  UC135072  Pseudognaphalium stramineum Dr. E. B. Copeland 1903-6-18 3211 San Mateo Montara Point Montara Point (on face of cliff and on upper beach) Comment
  JROH1188  Psilocarphus tenellus John Hunter Thomas 1983-4-14 21406 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1198  Psilocarphus tenellus John Hunter Thomas 1992-5-5 25217 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  CAS-BOT-BC362018  Psilocarphus tenellus George Oberlander No date on label 918 San Mateo San Francisco Watershed Reserve 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-BC104281  Quercus X morehus G. Ward 1941-4-12 s.n. San Mateo Sant Bruno Hills Comment
  JROH2534  Quercus X morehus W. K. Fisher 1898-3-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
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Oct 31 2016
  UCD23291  Quercus agrifolia Alan T. Whittemore 1976-5-29 103 San Mateo Intersection of Polyhemus Creek Road and Ticonderoga Street, San Mateo. 140 Comment
  UCD45070  Quercus agrifolia Stephen K. Langer 1991-3-16 s.n. San Mateo California, San Mateo Co.; San Bruno Mountains, Buckeye Canyon. Comment
  SEINET12034175  Quercus agrifolia Unknown 1929-1 7299 San Mateo Kings Mtn Comment
  JROH5868  Quercus agrifolia var. agrifolia David Y. Hollinger 1980-12-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2479  Quercus durata var. durata Arthur Spiegler 1952-5-10 87 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2486  Quercus durata var. durata John H. Thomas 1974-6-30 17462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105393  Quercus kelloggii Josephine D. Randall 1907-3-9 114 San Mateo Santa Cruz Mountain Peninsula, Searsville Road to Woodside Comment
  CAS-BOT-BC105401  Quercus kelloggii Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  JROH2495  Quercus kelloggii W. R. Dudley 1893-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  JROH2496  Quercus kelloggii A. D. E. Elmer 1903-5-1 4520 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH2505  Quercus kelloggii John Hunter Thomas 1981-4-7 20298 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM270203  Quercus kelloggii Lyman Benson 1930-5-3 2116 San Mateo La Honda Grade, above Woodside, Santa Cruz mt. range, San Francisco Bay watershed. 457 Comment
  RSA15312  Quercus kelloggii Carl B. Wolf 1927-4-3 282 San Mateo 1 1/2 miles above east base of La Honda grade, Santa Cruz Mountains. Comment
  JROH2521  Quercus lobata John H. Thomas 1977-4-28 18566 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA34036  Quercus parvula D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .154 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  UCD47146  Quercus parvula var. shrevei J. M. Tucker 1946-3-2 1370 A San Mateo Road to Oakland Y.M.C.A Camp, off La Honda-Pescadero road, 6-7 miles east of Pescadero, San Mateo County, California. Comment
  HSC24046  Quercus wislizeni Mary Katherine Wicksten 1971-6-17 14 San Mateo Huddart Park, bank along Zwierlein Trail near parking lot Comment
  RSA3933  Quercus wislizeni var. wislizeni W. R. Dudley 1903-5-2 s.n. San Mateo In front of Iverson House near Peters Creek. Comment
  SEINET12086684  Ranunculus W. R. Dudley 1904-1 s.n. San Mateo Corte Madera Creek, Santa Cruz Mountain Peninsula Comment
  RSA18084  Ranunculus aquatilis var. capillaceus Carl B. Wolf 1929-4-29 3665 San Mateo Small reservoir, 1 mile S of Portola, San Mateo Comment
  SEINET3816595 Image available Ranunculus bloomeri Lewis S. Rose 1934-3-11 34051 San Mateo Visitacion Valley. Comment
  POM268420  Ranunculus californicus Lyman Benson 1931-3-15 s.n. San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  RSA15338  Ranunculus californicus Carl B. Wolf 1927-2-5 149 San Mateo Pilarcitos Lake Comment
  UC1176930  Ranunculus californicus Peter H. Raven 1950-4-30 1955 San Mateo Montara; slopes facing ocean 9 Comment
  UC665800  Ranunculus californicus Ira L. Wiggins 1941-4-17 9719 San Mateo near junction of road to California Sanitarium and Woodside-Half Moon Bay road Comment
  JROH3470  Ranunculus californicus John H. Thomas 1968-3-31 14258 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of NE facing slope above Webb Ranch Comment
  POM268178  Ranunculus californicus Lyman Benson 1930-5-3 2101 San Mateo Santa Cruz Mt. 244 Comment
  CAS-BOT-BC378529  Ranunculus californicus var. californicus Elizabeth McClintock; Virginia Ryder 1964-2-16 s.n. San Mateo San Bruno Mountain, Guadalupe Road Comment
  CAS-BOT-BC378532  Ranunculus californicus var. californicus Elizabeth McClintock; Virginia Ryder 1964-2-16 s.n. San Mateo San Bruno Mountain, low growing on grassy slope above parking lot at top of mountain Comment
  CAS-BOT-BC378533  Ranunculus californicus var. californicus J. H. Thomas 1959-4-1 209 San Mateo serpentine hills west of Redwood City Comment
  CAS-BOT-BC378539  Ranunculus californicus var. californicus John H. Thomas 1971-5-2 15828 San Mateo serpentine fields bordered by chaparral, near intersection of Canada and Edgewater roads, about 4 mi SW of center of Redwood City 305 Comment
  CAS-BOT-BC378540  Ranunculus californicus var. californicus Ned Cahill 1974-4-23 165 San Mateo serpentine fields bordered by chaparral, near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC378546  Ranunculus californicus var. californicus Lyman Benson 1930-3-20 1953 San Mateo South San Francisco, San Francisco Bay, Comment
  JROH3483  Ranunculus hebecarpus John Hunter Thomas 1981-4-5 20264 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  JROH3493  Ranunculus hebecarpus John Hunter Thomas 1991-4-11 24986 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area near Rattlesnake Rocks Comment
  CAS-BOT-BC83420  Ranunculus lobbii W. R. Dudley 1904-4-10 s.n. San Mateo Near junction of Page Mill Road and Skyline Boulevard. Comment
  CAS-BOT-BC83422  Ranunculus lobbii E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC83423  Ranunculus lobbii J McMurphy 1904-1-1 s.n. San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC83429  Ranunculus lobbii A. D. E. Elmer 1903-4-1 4734 San Mateo Alpine School House. Comment
  JROH3497  Ranunculus muricatus John Hunter Thomas 1983-5-23 22238 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near shack side and low-flow crossing Comment
  POM269795  Ranunculus pusillus W. R. Dudley 1906-5-8 s.n. San Mateo Road betw woodside and Byrnes store Comment
  JROH5873  Raphanus sativus Ann Lambrecht 2011-7-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Bear Creek crossing near Preserve boundary fence Comment
  RSA152061  Rhamnus californica John H. Thomas 1961-5-7 9297 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC1071558  Rhamnus californica T. Tyrrell 1928-9-26 9 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 91 Comment
  UC202778  Rhamnus californica subsp. californica A. D. E. Elmer Jul 1901 4772 San Mateo Pilarcitos Stone Dam Comment
  JROH3563  Rhamnus crocea John H. Thomas 1973-5-5 16768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5771  Rhamnus crocea John Rawlings 2016-3-8 1683 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 12 east of Trail 10 intersection 110 Comment
  CAS-BOT-BC56664  Rhododendron occidentale William R. Dudley 1893-5-15 s.n. San Mateo near Big Trees Felton Comment
  CAS-BOT-BC437978  Ribes Eric Walther 1920-5-30 s.n. San Mateo Woodside Comment
  CAS-BOT-BC92489  Ribes aureum var. gracillimum James McMurphy 1906-4-4 s.n. San Mateo Creek above Judge Allen's, Santa Cruz Mountains. Comment
  SEINET13942330 Image available Ribes californicum Lewis S. Rose 1950-1 50028 San Mateo Hills west of San Bruno, alt. ca. 500 ft. 152 Comment
  CAS-BOT-BC93000  Ribes californicum var. californicum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Buckeye Canyon. Comment
  CAS-BOT-BC93002  Ribes californicum var. californicum A. D. E. Elmer 1903-3-1 4683 San Mateo Portola. Comment
  CAS-BOT-BC93003  Ribes californicum var. californicum A. D. E. Elmer 1903-3-1 4683 San Mateo Portola. Comment
  CAS-BOT-BC93009  Ribes californicum var. californicum J. I. McMurphy 1906-5-11 57 San Mateo Santa Cruz Mountain Peninsula. San Francisquito Creek Stanford University. Comment
  RSA0003752  Ribes deductum C. F. Baker 1902-4-4 441 San Mateo Crystal Springs Lake Comment
  JROH2656  Ribes divaricatum var. pubiflorum John Hunter Thomas 1988-4-28 24415 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  SBBG33963  Ribes divaricatum var. pubiflorum L. S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  UC1736497  Ribes divaricatum var. pubiflorum Dean W. Taylor 1989-4-18 10219 San Mateo Montara Mountain; ridgetop between Ox Hill and Scarper Peak 472 Comment
  CAS-BOT-BC173475  Ribes malvaceum W. R. Dudley 1893-1-1 s.n. San Mateo Near Belmont Comment
  CAS-BOT-BC212810  Ribes menziesii Adoph Holme 1929-4-1 s.n. San Mateo Berenda Farm near Redwood City Comment
  CAS-BOT-BC212835  Ribes menziesii J. H. Thomas 1962-3-24 9839 San Mateo Isenberg Ranch near Langley Hill. 548 Comment
  CAS-BOT-BC144608  Ribes sanguineum var. glutinosum David D. Keck 1932-2-14 1370 San Mateo Near La Honda, Santa Cruz Mountains, (3 miles north) 365 Comment
  JROH2685  Ribes sanguineum var. glutinosum John Hunter Thomas 1985-4-25 23556 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  CAS-BOT-BC144644  Ribes sanguineum var. glutinosum Reed C. Rollins 1941-3-16 2945 San Mateo dry ravine, west slope of the Santa Cruz Mts., about 35 miles south of San Francisco Comment
  JROH1203  Rigiopappus leptocladus John H. Thomas 1963-5-15 10089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1207  Rigiopappus leptocladus John Hunter Thomas 1990-5-2 24833 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC429742  Rigiopappus leptocladus L. R. Abrams 1902-5-4 240 San Mateo Woodside Comment
  CAS-BOT-BC341024  Robinia pseudoacacia J. H. Thomas 1960-6-8 8774 San Mateo Road bank between Stanford and Searsville Lake along Sand Hill Road Comment
  UC107585  Romanzoffia californica Kellogg 1869-3-16 San Mateo San Bruno Comment
  UC107586  Romanzoffia californica C. F. Baker 1902-4-6 463 San Mateo Crystal Springs Lake; ; Crystal Springs Lake, San Mateo Co. Comment
  JROH1586  Rorippa palustris subsp. palustris John Hunter Thomas 1981-10-25 20764 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC56587  Rosa californica Steven Triano 1988-5-24 173 San Mateo Along w side of Old La Honda Road ca 0.6 mi s of Portola Road and 3.8 mi s of Woodside. 201 Comment
  CAS-BOT-BC146691  Rosa gymnocarpa Walter Knight; Irja Knight 1964-5-30 601 San Mateo Colma Canyon Comment
  CAS-BOT-BC146700  Rosa gymnocarpa John H. Thomas 1961-5-14 9367 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek, San Francisco Watershed Reserve 152 Comment
  RSA112449  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo Near Crystal Springs Lake. Santa Cruz Mtns. Santa Cruz peninsula. 91 Comment
  RSA195394  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo Near Crystal Springs Lake. Santa Cruz Mtns. Santa Cruz peninsula. 91 Comment
  JROH3763  Rosa gymnocarpa var. gymnocarpa John Hunter Thomas 1989-5-11 24738 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3767  Rosa laevigata John H. Thomas 1967-6-1 12971 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY335771  Rosa piscatoria A. D. E. Elmer 05 1903 4923 San Mateo Pescadero Comment
  CAS-BOT-BC148213  Rosa spithamea V. F. Hesse 1953-8-22 1189 San Mateo Near China Grade 762 Comment
  SEINET5550871  Rubiaceae H. S. Gentry 1931-1 89 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC156575  Rubus John Thomas Howell 1938-6-4 13891 San Mateo Burlingame Comment
  CAS-BOT-BC152831  Rubus parviflorus W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Ridge - Santa Cruz Peninsula Comment
  CAS-BOT-BC152834  Rubus parviflorus A. D. E. Elmer 1903-6-1 4294 San Mateo Alpine School House Comment
  RSA0035063  Rubus parviflorus W. M. Arbaugh 1968-4-10 238 San Mateo Butano State Park. Comment
  CAS-BOT-BC156765  Rubus spectabilis W. R. Dudley 1894-3-26 s.n. San Mateo Near [Lobetas] Lobitos 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-BC157078  Rubus ursinus L. R. Abrams 1914-10-14 5132 San Mateo Tunitas [Canon] Canyon Comment
  CAS-BOT-BC157080  Rubus ursinus L. R. Abrams 1914-10-14 5134 San Mateo Tunitas [Canon] Canyon Comment
  CAS-BOT-BC157086  Rubus ursinus Walter Knight; Irja Knight 1965-3-15 s.n. San Mateo Colma Canyon. San Bruno Mt. Comment
  JROH3778  Rubus ursinus W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA26246  Rubus ursinus Alice Eastwood, John T. Howell 1938-6-26 6050 San Mateo Montara Mtn above Point San Pedro Comment
  UCSC007775  Rubus ursinus Becky Hendricks, Shayne Coppedge 2012-5-18 s.n. San Mateo Ano Nuevo State Park Comment
  POM140136  Rubus vitifolius Edward L. Greene 1902-1-15 246 San Mateo W side King's Mtn. Comment
  CAS-BOT-BC422081  Rumex acetosella John H. Thomas 1964-4-30 10362 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC422079  Rumex acetosella Daniel Cohen 1953-5-9 85 San Mateo La Honda Road near Skyline Drive. Comment
  CAS-BOT-BC422084  Rumex acetosella Ira L. Wiggins 1928-3-25 2945 San Mateo Moss Beach Comment
  JROH3295  Rumex acetosella John Hunter Thomas 1985-5-21 23667 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Whisky Hill Gate. Comment
  JROH3296  Rumex conglomeratus John Hunter Thomas 1990-2-6 24867 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC421575  Rumex crassus Lewis S. Rose 1954-10-4 54134 San Mateo Montara Comment
  JROH5571  Rumex crispus John Rawlings 2013-5-21 1164 San Mateo Jasper Ridge Biological Preserve, Stanford University. In ditch on east side of Rd C uphilll from bridge across San Francisquito Creek. 98 Comment
  CAS-BOT-BC433362  Rumex crispus George Oberlander 1949-7-30 328 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  CAS-BOT-BC433708  Rumex occidentalis W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Peninsula. Near San Mateo. Comment
  CAS-BOT-BC433822  Rumex pulcher George Oberlander 1949-7-30 342 San Mateo San Francisco Watershed Reserve. Upper Crystal Spr. Lake Comment
  CAS-BOT-BC433829  Rumex pulcher Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  JROH3309  Rumex pulcher John Hunter Thomas 1983-5-23 22236 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near shack side and low-flow crossing. Comment
  UCR121547  Rumex salicifolius George K. Helmkamp, E. A. Helmkamp 1999-6-28 5016 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC182771  Rumex salicifolius var. transitorius Peter Rubtzoff 1979-7-26 9299 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH2215  Rupertia physodes John H. Thomas 1975-6-5 17945 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  JROH2216  Rupertia physodes John H. Thomas 1976-5-26 18158 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS48781  Rupertia physodes James G. Daly 1934-1 380 San Mateo at junction of La Honda Road and Skyline Boulevard Santa Cruz Mts., San Gregorio watershed Comment
  JROH2222  Rupertia physodes John Hunter Thomas 1981-5-14 20571 San Mateo Jasper Ridge Biological Preserve, Stanford University; old shack riders shack 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
  JROH1717  Sagina apetala John H. Thomas 1971-4-25 15779 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM163965  Sagina maxima subsp. crassicaulis Copeland 1903-6-5 3329 San Mateo Montara Point. Comment
  RSA312360  Salicornia maritima H. L. Mason, Malcolm Nobs 1948-12-11 713 San Mateo Hwy 101 near shore of bay, at Whipple Avenue intersection, Redwood City. Comment
  JEPS59843  Salicornia virginica unknown 1925-5-28 18 San Mateo Tunitas Comment
  CAS-BOT-BC103337  Salix bonplandiana W. R. Dudley 1900-3-18 s.n. San Mateo South of San Andreas Lake Comment
  UC492364  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1932-7-4 640 San Mateo 4/10 mi e. Pescadero (Butano Creek Rd.) Comment
  CAS-BOT-BC125372  Salix lasiandra var. lasiandra W. R. Dudley 1893-1-1 s.n. San Mateo Hill north of South San Francisco Comment
  CAS-BOT-BC125373  Salix lasiandra var. lasiandra W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's by Peters Creek Comment
  CAS-BOT-BC125379  Salix lasiandra var. lasiandra A. D. E. Elmer 1900-4-1 2166 San Mateo Spanishtown Comment
  JROH3875  Salix lasiandra var. lasiandra John H. Thomas 1975-5-2 17854 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3876  Salix lasiandra var. lasiandra John H. Thomas 1975-5-2 17854 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC107129  Salix lasiolepis A. D. E. Elmer 1903-3-1 4875 San Mateo Searsville Lake Comment
  CAS-BOT-BC107132  Salix lasiolepis Ira L. Wiggins 1976-4-20 22178 San Mateo Along N bank of San Francisquito Creek, near Pope Street Bridge, Menlo Park Comment
  CAS-BOT-BC107133  Salix lasiolepis Peter H. Raven 1964-2-16 18742 San Mateo Just south of Lake San Andreas Comment
  CAS-BOT-BC107139  Salix lasiolepis W. R. Dudley 1904-3-7 68 San Mateo Bear Gulch, Santa Cruz Mt. - Santa Cruz Peninsula 152 Comment
  CAS-BOT-BC107140  Salix lasiolepis Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills Comment
  JEPS121519  Salix lasiolepis Adam C. Schneider with C. Matt Guilliams and Will Freyman 2014-2-1 322 San Mateo Crystal Springs Reservoir, Pulgas Ridge, east of Crystal Springs Reservoir. Comment
  JROH3861  Salix lasiolepis L. R. Abrams 1904-3-7 67 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake 121 Comment
  RSA178599  Salix lasiolepis L. R. Abrams 1915-3-13 5162 San Mateo Near jct of San Francisquito and Los Trancos creeks. About 2 miles from Stanford University. Comment
  RSA249478  Salix lasiolepis John F. Emmel 1972-6-4 404 San Mateo Large canyon bottom 1.1 air miles NW of 1314' summit. Along Guadalupe Canyon Parkway. San Bruno Mtns. 107 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
  SEINET12003303  Salix lasiolepis L. S. Rose 1938-1 38302 San Mateo San Francisco, Mountain Lake, Presidio 30 Comment
  CAS-BOT-BC107248  Salix lasiolepis var. bigelovii Peter Rubtzoff 1987-11-27 9888 San Mateo San Bruno Mountains, Saddle area on north side of Guadelupe Canyon, Parkway west of Radio Road junction; northwestern part of the area along old Guadelupe Road, Upper part of East Fork Colma Creek canyon. Comment
  CAS-BOT-BC108256  Salix lasiolepis var. bigelovii Peter H. Raven 1964-9-13 19673 San Mateo San Gregorio Comment
  CAS-BOT-BC124483  Salix lasiolepis var. lasiolepis Javier Penalosa 1963-3-30 2762 San Mateo Guadalupe Valley Comment
  RSA119045  Salix lucida subsp. lasiandra L. S. Rose 1958-3-19 58013 San Mateo Princeton. 6 Comment
  CAS-BOT-BC129068  Salix scouleriana A. D. E. Elmer 1903-5-1 4864 San Mateo Iverson's Place on the Pescadero Creek Comment
  CAS-BOT-BC129071  Salix scouleriana W. R. Dudley 1896-4-17 s.n. San Mateo By trail from Haladay place to summit La Honda Rd. - Santa Cruz Peninsula Comment
  SEINET12003643  Salix scouleriana L. S. Rose 1938-1 38303 San Mateo Skyline Blvd. & La Honda Road Comment
  CAS-BOT-BC126478  Salix sitchensis W. R. Dudley 1903-5-2 s.n. San Mateo Near Redwood Villa, La Honda 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-BC126501  Salix sitchensis W. R. Dudley 1904-3-7 69 San Mateo Bear Gulch, Santa Cruz Mts. 213 Comment
  CAS-BOT-BC126521  Salix sitchensis W. R. Dudley 1897-4-19 s.n. San Mateo Bank of Pescadero Creek below Peters Creek Comment
  POM87714  Salix sitchensis L. R. Abrams 1902-1 2272 San Mateo Kings Mtn. Comment
  RSA681666  Salvia leucophylla Annuschka Deb 1989-4-14 102 San Mateo YBN Demonstration Garden, Woodside, CA Comment
  CAS-BOT-BC246014  Sambucus nigra subsp. caerulea Fred Hemphill 1973-5-6 754 San Mateo North of Malabar Road and Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC236459  Sambucus racemosa subsp. racemosa A. D. E. Elmer 1903-5-1 4663 San Mateo Butano Creek Comment
  CAS-BOT-BC236452  Sambucus racemosa subsp. racemosa Nancy Kittle 1981-5-15 067 San Mateo 1 mile west of junction of Highway 280 with Sandhill Road 50 Comment
  SEINET13945102 Image available Sanicula arctopoides Lewis S. Rose 1965-1 65012 San Mateo San Bruno Mts, N end. Ca 400 ft 122 Comment
  SEINET6205025  Sanicula arctopoides L. S. Rose 1965-1 65012 San Mateo San Bruno Mts, N end. Comment
  CAS-BOT-BC223318  Sanicula bipinnatifida Ned Cahill 1974-4-30 219 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH335  Sanicula crassicaulis John H. Thomas 1973-4-14 16552 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH338  Sanicula crassicaulis John H. Thomas 1974-5-3 17243 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH339  Sanicula crassicaulis John H. Thomas 1975-4-30 17844 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH344  Sanicula crassicaulis John Hunter Thomas 1986-5-1 23996 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA667078  Sanicula crassicaulis George K. Helmkamp, E. Helmkamp 2001-6-2 6784 San Mateo Central CA coast: Purissima Crk Rd, E of Half Moon Bay at Purissima Crk, 3.2 mi E of CA-1 244 Comment
  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
  JEPS85243  Sanicula hoffmannii Roy E. Buck and James A. West 1985-6-3 533 San Mateo on upper ne-facing slope of large gulch draining nw to Whitehouse Creek (ca 2.5 air km ne of Whitehouse Canyon Rd-CA Hwy 1 jct., 3.7 km nne of Franklin Point); Cascade Ranch 182 Comment
  POM204321  Satureja douglasii I. L. Wiggins 1929-7-4 3778 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  RSA176539  Schedonorus arundinaceus John H. Thomas 1963-8-4 10235 San Mateo About 2.5 miles inland from San Gregorio along the highway Comment
  CAS-BOT-BC111415  Schoenoplectus acutus var. occidentalis Rimo Bacigalupi 1922-5-25 s.n. San Mateo Emerald Lake, Redwood City Comment
  RSA14775  Schoenoplectus maritimus L. S. Rose 1935-8-13 35565 San Mateo Salada 3 Comment
  RSA32340  Schoenoplectus pungens Alice S. Mulford 1945-7-17 s.n. San Mateo Moss Beach Comment
  UC1853  Scirpus cernuus J. Burtt Davy 1893-6-17 San Mateo Belmont Belmont (meadow back of Salt Marsh) Comment
  CAS-BOT-BC111062  Scirpus microcarpus Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo Colma Canyon Comment
  JROH4424  Scirpus microcarpus John Rawlings, Carol Zabel, 2006-5-3 0904 San Mateo Jasper Ridge Biological Preserve, Stanford University. Downstream towards Searsville Lake from the footbridge near northwest terminus of Trail 12. 107 Comment
  CAS-BOT-BC518999  Scoliopus bigelovii J. H. Thomas 1960-3-1 8539 San Mateo Along Kings Mt. road about 1/2 mile below Skyline Blvd. 609 Comment
  POM292613  Scoliopus bigelovii Lyman Benson 1931-2-28 2611 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  RSA132362  Scoliopus bigelovii John H. Thomas 1960-3-1 8539 San Mateo Dense redwood forest along Kings Mt. road about 0.5 mile below Skyline Blve. 610 Comment
  CAS-BOT-BC519007  Scoliopus bigelovii W. R. Dudley 1898-3-5 s. n. San Mateo Kings Mt Comment
  CAS-BOT-BC519013  Scoliopus bigelovii Lewis S. Rose 1964-2-6 64000 San Mateo Kings Mountain 609 Comment
  UCSC004913  Scrophularia californica Monica Larenas 1985-6-1 17 San Mateo Hwy 92, 1 mi W of summit, intersection with Skyline Blvd. Comment
  CHSC57003  Scrophularia californica subsp. californica Steven Triano 1988-5-24 179 San Mateo Along w side of Old La Honda Road ca 0.8 mi s of Portola Road and 4.0 mi s of Woodside. 201 Comment
  UCR122984  Scrophularia californica subsp. californica George K. Helmkamp, E. A. Helmkamp 2001-6-2 6776 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
  JROH2890  Scutellaria tuberosa John Hunter Thomas 1992-4-23 25161 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  CAS-BOT-BC59054  Sedum spathulifolium John F. Emmel 1970-5-17 279 San Mateo Slope 1.2 air miles ESE of 1314 foot summit, on NE slipe of San Bruno Mts. 304 Comment
  CAS-BOT-BC59270  Sedum spathulifolium W. R. Dudley 1894-4-1 s.n. San Mateo San Mateo Reservoir. Comment
  CAS-BOT-BC59272  Sedum spathulifolium W. R. Dudley 1897-6-4 s.n. San Mateo On rocks by Canyon Camp, W. Waddell Cr. Comment
  CAS-BOT-BC59273  Sedum spathulifolium George Oberlander 1951-3-16 1156 San Mateo On Fiefield Ridge Comment
  UC311548  Senecio aronicoides A. D. E. Elmer May 1903 4508 San Mateo San Bruno Hills Comment
  CAS-BOT-BC363388  Senecio aronicoides D. E. Breedlove 1963-5-24 4978 San Mateo In San Andreas Valley below San Andreas Lake Comment
  CAS-BOT-BC363395  Senecio aronicoides Le Roy Abrams 1902-5-4 2398 San Mateo Hills back of Redwood Comment
  RSA0013330  Senecio aronicoides A. D. E. Elmer 1903-05 4508 San Mateo San Bruno Hills. 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
  JROH1228  Senecio vulgaris John Hunter Thomas 1982-11-6 21197 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC364637  Senecio vulgaris John H. Thomas 1963-5-20 10146 A San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC80295  Sequoia sempervirens William R. Dudley 1893-2-18 s.n. San Mateo Near La Honda Comment
  JROH133  Sequoia sempervirens W. R. Dudley 1901-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3876338 Image available Sequoia sempervirens Clipper Watene 1965-7-31 40 San Mateo Along Hwy. 84, one mi north of La Honda.; 0 Comment
  CAS-BOT-BC243556  Setaria parviflora John Thomas Howell 1957-7-8 32805 San Mateo Holy Cross Cemetery Comment
  UCR121586  Sherardia arvensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4965 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  JROH3825  Sherardia arvensis John H. Thomas 1955-5-6 4996 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small draw on south side of ridge. 182 Comment
  JROH3826  Sherardia arvensis John H. Thomas 1955-5-6 4996 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small draw on south side of ridge. 182 Comment
  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
  RSA448568  Sidalcea diploscypha L. S. Rose 1936-5-28 36300 San Mateo Emerald lake, W. of Redwood City. Comment
  UC676738  Sidalcea malviflora subsp. laciniata Reed C. Rollins 1941-3-22 2949 San Mateo 1 mi n Belmont; n of Belmont Comment
  OBI48733  Sidalcea malviflora subsp. laciniata S. Bagley 1969-3-28 s.n. San Mateo Near the San Francisco Game Refuge 145 Comment
  JEPS85233  Silene californica Roy E. Buck, Randall A. Morgan 1984-6-17 509 San Mateo ca 6 km sw Redwood City (in triangle of Edgewood Rd., Canada Rd., and Interstate 280, San Francisco Watershed Reserve); San Francisco Watershed Reserve, sw of Redwood City 152 Comment
  RSA177058  Silene gallica John H. Thomas 1964-5-9 10377 San Mateo San Gregorio beach. Comment
  CAS-BOT-BC386848  Silene gallica Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC386850  Silene gallica Javier Penalosa 1963-3-9 2696 San Mateo San Bruno Mountain. Ravine 1/2 mi. east of 1314ft. summit. 304 Comment
  CAS-BOT-BC386856  Silene gallica Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  CAS-BOT-BC389197  Silene laciniata subsp. californica L. R. Abrams 1920-6-1 7494 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  JROH1729  Silene laciniata subsp. californica John Hunter Thomas 1989-6-17 24775 San Mateo Jasper Ridge Biological Preserve, Stanford University; near San Francisquito Creek Comment
  CAS-BOT-BC364860  Silybum marianum J. H. Thomas 1949-5-25 562 San Mateo Near western approach to the Dumbarton Bay Bridge Comment
  CAS-BOT-BC74987  Sinapis arvensis Fred Hemphill 1973-4-8 615 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  POM272585  Sinapis arvensis Lyman Benson 1939-7-1 9677 a San Mateo San Francisco City Limits. 30 Comment
  CAS-BOT-BC75378  Sisymbrium orientale Walter Knight; Irja Knight 1965-4-11 s.n. San Mateo San Bruno Mountains. Guadalupe Road about 0.5 mile from Radio Road. Comment
  CHSC39827  Sisyrinchium bellum Maibelle Williams 1929-5-10 San Mateo Moss Beach. 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
  RSA125832  Sisyrinchium bellum G. R. Campbell 1956-4-4 2 San Mateo La Honda Rd (from Highway 5) to Woodside, 3 miles from Mt. Home-Portola road 915 Comment
  JROH4196  Solanum John Hunter Thomas 1980-11-12 20164 San Mateo Jasper Ridge Biological Preserve, Stanford University. On delta Comment
  JROH4179  Solanum americanum John Hunter Thomas 1982-7-2 21054 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing Comment
  RSA22959  Solanum douglasii L. R. Abrams, I. L. Wiggins 1939-6-3 425 San Mateo Ano Nuevo Point. Comment
  SD38286  Solanum douglasii Edith A. Purer 1933-7-27 5389 San Mateo partially stabilized areas in sand dunes, two miles south of Pigeon Point Comment
  UCD126877  Solanum douglasii G. L. Stebbins Jr.; E. F. Paddock 1939-8-17 63 San Mateo San Gregorio. Comment
  UCD126847  Solanum furcatum John H. Thomas 1961-5-7 9302 San Mateo San Bruno Mountain in northern part of county. 304 Comment
  SJSU15425  Solanum physalifolium var. nitidibaccatum Toni Corelli 2011-8-31 719 San Mateo Half Moon Bay east of of Hwy. 1 and south of Higgins Canyon Road 30 Comment
  JROH4185  Solanum umbelliferum John H. Thomas 1956-4-7 5603 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4186  Solanum umbelliferum John H. Thomas 1958-2-15 6988 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC139876  Solanum umbelliferum C. F. Baker 1902-1-15 234 San Mateo w side of King's Mountain King's Mountain Comment
  JROH4195  Solanum umbelliferum John Hunter Thomas 1989-5-11 24732 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge on causeway, bridge separates two parts of lake Comment
  NY820584  Solanum umbelliferum P. H. Raven 1950-4-16 1797 San Mateo San Bruno Mts. 244 Comment
  POM57020  Solidago californica C. F. Baker 1901-10-20 58 San Mateo Summit of Coast Range Comment
  UC1070254  Solidago elongata T. Tyrrell 1928-9-26 12 San Mateo Pomponio Creek Santa Cruz Quad., , Plot #13 91 Comment
  UC473553  Solidago elongata Lewis B. Rose 1931-9-9 San Mateo Kings Mt. Comment
  SEINET11382904 Image available Solidago elongata Unknown 1931-1 s.n. San Mateo Kings Mt. 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
  CAS-BOT-BC365186  Solidago velutina subsp. californica Peter Rubtzoff 1975-10-4 8415 San Mateo San Bruno Mountains. On ridge northwest of Fog Forest Comment
  JROH1235  Solidago velutina subsp. californica W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1236  Solidago velutina subsp. californica John Hunter Thomas 1989-6-17 24779 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD30800  Solidago velutina subsp. californica Edith A. Purer 1933-8-25 San Mateo Spring Valley, along roadside. Comment
  CAS-BOT-BC365936  Soliva sessilis J. H. Thomas 1954-6-11 4283 San Mateo About 0.25 miles north of Pigeon Point Light House Comment
  JROH1249  Soliva sessilis John Hunter Thomas 1986-5-6 24017 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC365930  Soliva sessilis Walter Knight; Irja Knight 1967-5-16 s.n. San Mateo San Bruno Mountain. Randolph Ave., South San Francisco Comment
  CAS-BOT-BC374498  Sonchus asper J. H. Thomas 1949-4-14 286 San Mateo Kings Mountain Comment
  JEPS128402  Sonchus asper subsp. asper Adam C. Schneider 2013-5-17 135 San Mateo Crystal Springs Reservoir. Comment
  JROH1263  Sonchus oleraceus John Hunter Thomas 1981-5-8 20554 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236582  Sorghum halepense J. H. Thomas 1965-9-8 11444 San Mateo Near intersection of Bayshore and University Avenue, east Palo Alto Comment
  CAS-BOT-BC236583  Sorghum halepense Phillip C. Wheeler 1965-6-19 s.n. San Mateo Brisbane Lagoon, San Bruno Mountain Comment
  JROH5949  Sparaxis tricolor Trevor Hebert, John Rawlings 2017-4-6 2015 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the Sand Hill Rd. fence-line northeast of the intersection of Road L and Road H 124 Comment
  JROH5521  Sparganium eurycarpum var. eurycarpum L. R. Abrams 1919-8-20 7346 San Mateo Jasper Ridge Biological Preserve, Stanford University. Head of Searsville Lake by Road. Comment
  JROH5850  Spartium junceum Diane Renshaw 2014-2-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek Delta of Searsville Lake. Comment
  CAS-BOT-BC390012  Spergula arvensis Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. April Brook Comment
  CAS-BOT-BC390013  Spergula arvensis Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountain. Top of ridge above Brisbane Comment
  JROH1748  Spergula arvensis John Hunter Thomas 1985-4-10 23512 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  RSA15628  Spergula arvensis C. B. Wolf 1928-2-16 1476 San Mateo Near Alpine Road. Comment
  SEINET7062814  Spergula arvensis subsp. arvensis A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach west of Pescadero. UTM Zone 10, 551765mE, 4121313mN. (WGS84/NAD83). 0 Comment
  UC1537317  Spergula arvensis subsp. arvensis Gordon H. True Jr. 1937-3-31 613 San Mateo field s. of Daly City 182 Comment
  JROH1756  Spergularia John Hunter Thomas 1978-4-25 19155 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC390477  Spergularia macrotheca var. macrotheca Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC390465  Spergularia macrotheca var. macrotheca Ira L. Wiggins 1938-7-9 8932 San Mateo Cliffs near Pigeon Point light house Comment
  CAS-BOT-BC390921  Spergularia marina Javier Penalosa 1963-3-30 2768 San Mateo San Bruno Mountain. Guadalupe Valley 30 Comment
  RSA582109  Stachys ajugoides L. S. Rose 1936-5-23 s.n. San Mateo E. of Crystal Springs Lake. 152 Comment
  SEINET13947989 Image available Stachys ajugoides Lewis S. Rose 1941-1 41469 San Mateo Low wet open fields, Belmont. Alt ca 3 m 3 Comment
  CDA41030  Stachys albens Wm. Davis 1964-6-29 s.n. San Mateo Brown prop., San Bruno. 0 Comment
  JEPS82539  Stachys bullata Roger Raiche 1984-5-13 40151 San Mateo San Pedro Creek Montara Mt. 30 Comment
  UC306580  Stachys bullata A. D. E. Elmer June, 1903 4417 San Mateo San Mateo Comment
  HSC23911  Stachys bullata Mary Katherine Wicksten 1971-6-15 51 San Mateo Huddart Park near residence Comment
  JROH2904  Stachys bullata John Hunter Thomas 1977-6-16 18809 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Searsville Lake Comment
  JROH2907  Stachys bullata John Hunter Thomas 1984-5-27 23407 San Mateo Jasper Ridge Biological Preserve, Stanford University; beyond redwood grove along San Francisquito Creek, about 300 yards to the east Comment
  UC191758  Stachys bullata E. L. Greene 1887-6-11 San Mateo Comment
  CDA41578  Stachys rigida A. Gilbert 1997-6-8 s.n. San Mateo San Francisco Bay Area; La Honda. 0 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
  RSA785893  Stachys rigida subsp. quercetorum Peter Rubtzoff 1975-10-11 8425 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Northwest of Fog Forest. Comment
  JROH2892  Stachys rigida var. quercetorum John H. Thomas 1967-5-12 12884 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5890  Stachys rigida var. quercetorum Ruth Porter 1998-4-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC92128  Stebbinsoseris heterocarpa T. S. Brandegee 1890-5-21 San Mateo Searsville Comment
Read comments
Nov 12 2007
  JROH1779  Stellaria media John H. Thomas 1968-3-17 14181 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1786  Stellaria media John Hunter Thomas 1982-3-23 20815 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1785  Stellaria media John Hunter Thomas 1981-4-23 20492 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC398981  Stellaria nitens George Oberlander 1950-3-11 446 San Mateo Top of Sawyer Ridge Comment
  CAS-BOT-BC375210  Stephanomeria elata John Thomas Howell 1939-10-8 15369 San Mateo Pt. San Pedro Comment
  UC1177277  Stephanomeria elata John Thomas Howell 1939-10-8 15369 San Mateo Point San Pedro Comment
Read comments
Jun 6 2008
  RSA128948  Stephanomeria virgata subsp. virgata J. T. Howell 1939-10-8 15369 San Mateo Pt San Pedro. Comment
  JROH5388  Stipa miliacea var. miliacea John Hunter Thomas 1989-5-30 24757 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC271642  Symphoricarpos albus var. laevigatus W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Canyon near head Los Trancos Creek, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC271643  Symphoricarpos albus var. laevigatus W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Canyon near head Los Trancos Creek, Santa Cruz Mountain Peninsula Comment
  JEPS29414  Symphoricarpos albus var. laevigatus L. R. Heckard 1961-7-16 1261 San Mateo near San Bruno Mt. summit (ne of transmitting station KQED); San Bruno Mt. 335 Comment
  SJSU110  Symphoricarpos albus var. laevigatus C. D. Duncan 1929-5-30 San Mateo Jasper Ridge above Searsville L Comment
  CAS-BOT-BC271649  Symphoricarpos albus var. laevigatus Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC344895  Symphyotrichum chilense Peter Rubtzoff 1975-9-11 8376 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC99063  Symphyotrichum chilense Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain - Dairy Ravine across road from KQED radio tower Comment
  CAS-BOT-BC99060  Symphyotrichum chilense Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain - West Power Line Ridge at Ridge Road Comment
  CAS-BOT-BC99062  Symphyotrichum chilense Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Quarry 4 Comment
  CAS-BOT-BC99096  Symphyotrichum chilense W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  OBI59917  Symphyotrichum chilense David J. Keil 1988-11-19 21201 San Mateo Highway 1, south of Half Moon Bay Comment
  JEPS17916  Symphyotrichum subspicatum Rimo Bacigalupi 1955-8-4 5449 San Mateo just n of lighthouse Montara Point ((at town of Montara)); Montara Comment
  CAS-BOT-BC99387  Symphyotrichum subspicatum Phillip Wheeler 1965-5-23 s.n. San Mateo Radio Road, San Bruno Mountain Comment
  UC1927817  Symphyotrichum subspicatum David Keil 1988-11-19 21201 San Mateo Highway 1, south of Half Moon Bay Comment
  CAS-BOT-BC98362  Symphyotrichum subulatum var. parviflorum John H. Thomas 1968-10-6 14851 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. East of Palo Alto. Comment
  JROH1278  Tanacetum parthenium John Hunter Thomas 1983-6-29 22697 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15440  Tanacetum parthenium Toni Corelli 2011-8-31 717 San Mateo Pescadero State Beach and Marsh Natural Preserve, Round Hill Trail at the end of Water Lane Road 5 Comment
  CAS-BOT-BC376870  Taraxacum erythrospermum Walter Knight; Irja Knight 1965-3-21 926 San Mateo San Bruno Mountain. On Power Line Ridge Comment
  OBI48850  Tauschia kelloggii Lewis S. Rose 1939-5-5 39092 San Mateo San Mateo Cyn 46 Comment
  CAS-BOT-BC447473  Tellima grandiflora Mita C. Daniel 1915-4-10 s.n. San Mateo Kings' Mountain Comment
  CAS-BOT-BC447479  Tellima grandiflora Margaret A. Barry 1938-5-29 261 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  CAS-BOT-BC447481  Tellima grandiflora John H. Thomas 1974-5-9 17334 San Mateo San Pedro Valley. Northern part of county, inland from Pacifica. 152 Comment
  RSA176767  Tellima grandiflora John H. Thomas 1961-5-5 9209 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  SEINET11261330  Tetragonia tetragonoides Kaye H. Thorne, J. Chandler 1986-7-25 4915 San Mateo Half Moon Bay, 2 mi S of Moss Beach at Dune Beach. Sand dunes and beach area adjacent to the Pacific Ocean.; 0 Comment
  UC634944  Thalictrum fendleri H. L. Mason 1927-4-23 3680 San Mateo summit of road between La Honda and Pescadero Creek Comment
  JROH3503  Thalictrum fendleri var. polycarpum L. R. Abrams 1901-3-1 1171 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3504  Thalictrum fendleri var. polycarpum D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. On Searsville Ridge Comment
  JROH3507  Thalictrum fendleri var. polycarpum John H. Thomas 1958-5-10 7159 San Mateo Jasper Ridge Biological Preserve, Stanford University. Fairly common along embankment of trail near Searsville Lake. Comment
  UC727238  Thalictrum fendleri var. polycarpum W. R. Dudley 1904-4-10 San Mateo Alpine Rd Santa Cruz Mountain Peninsula, Black Mt. Comment
  UCSB18684  Thalictrum fendleri var. polycarpum Schulte, John 1963-4-14 San Mateo top of Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC399841  Thalictrum polycarpum A. D. E. Elmer 1903-6-1 4425 San Mateo Butano Creek Comment
  CAS-BOT-BC399852  Thalictrum polycarpum Alice Eastwood 1922-5-30 11330 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC399844  Thalictrum polycarpum W. R. Dudley 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Alpine Road, Black Mt. Comment
  CAS-BOT-BC202036  Thinopyrum ponticum Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains. Along Bayshore Boulevard 15 Comment
  SEINET3153451  Thymus vulgaris Unknown 1870-4-10 sn San Mateo Mr. Saulmann's garden at San Mateo Comment
  CAS-BOT-BC66676  Thysanocarpus curvipes Margaret A. Barry 1937-4-21 18 San Mateo On Coal Mine Ridge. Comment
  RSA17959  Tiarella trifoliata var. unifoliata L. A. Waitzinger 1927-8-14 722 San Mateo Islam Camp near La Honda. Santa Cruz Mts. Comment
  JROH380  Torilis arvensis John Hunter Thomas 1992-5-14 25230 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  CAS-BOT-BC377136  Tragopogon porrifolius W. R. Dudley 1897-5-12 s.n. San Mateo Santa Cruz Peninsula. On road from Bay to Menlo Park Comment
  POM131281  Trientalis latifolia C. F. Baker 1902-3-30 427 San Mateo Crystal Springs Lake Comment
  JEPS85234  Trifolium Roy E. Buck and James A. West 1985-4-21 522 San Mateo 3.2 air km ene Franklin Point (on crest of low ridge separating Whitehouse Creek drainage and small lake to s, ca 2.1 air km ne of Whitehouse Canyon Rd and Hwy 1); Cascade Ranch 106 Comment
  UC16607  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1893-6-17 774 San Mateo Belmont Comment
  JROH2241  Trifolium barbigerum John H. Thomas 1974-4-25 17202 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  POM88143  Trifolium bifidum L. R. Abrams 1902-5-20 2470 San Mateo Kings Mountain Comment
  UC137795  Trifolium bifidum var. bifidum C. F. Baker 1902-5-4 743 San Mateo Woodside Comment
  JROH2254  Trifolium bifidum var. decipiens John H. Thomas 1967-5-12 12871 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA349487  Trifolium bifidum var. decipiens D. D. Keck 1932-6-1 1790 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mountains 305 Comment
  UC575709  Trifolium bifidum var. decipiens Lewis S. Rose 1935-5-1 35134 San Mateo Redwood City Comment
  RSA6273  Trifolium ciliolatum D. D. Keck 1932-6-1 1792 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mountains 305 Comment
  UC165612  Trifolium ciliolatum J. Burtt Davy 1893-6-17 775 San Mateo Belmont 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
  JROH2284  Trifolium fucatum John H. Thomas 1955-5-6 4987 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent grassy slopes Comment
  JROH2294  Trifolium fucatum John Hunter Thomas 1978-4-22 19103 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2300  Trifolium fucatum John Hunter Thomas 1983-4-21 21639 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA95543  Trifolium fucatum var. fucatum L. S. Rose 1953-4-5 53014 San Mateo Redwood City, along Bayshore Highway. 3 Comment
  JROH5566  Trifolium hirtum John Rawlings 2013-4-30 1197 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along east side of Road C south of the San Francisquito Creek bridge. 89 Comment
  UC866875  Trifolium microcephalum Lewis S. Rose 1935-5-1 35139 San Mateo Belmont Comment
  POM126710  Trifolium microcephalum R. L. Pendleton 1907-4-20 611 San Mateo Lake Merced. 30 Comment
  JEPS127794  Trifolium microdon Adam C. Schneider with C. Matt Guilliams 2013-4-7 67 San Mateo Along Dirt Road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  SJSU15436  Trifolium microdon Toni Corelli 2010-5-13 619 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  UCSC006035  Trifolium microdon Randall Morgan 1996-5-24 2965 San Mateo Pacifica, San Pedro Mtn. Comment
  UCD109275  Trifolium oliganthum R. Tofsrud 1952-1 2 San Mateo Near Foster. Comment
  CDA33537  Trifolium resupinatum L. Kuwahara 2010-6-11 PDR# 1621663 San Mateo Menlo Park veterinarian submitted as clover sample. 0 Comment
  JROH2346  Trifolium subterraneum John Hunter Thomas 1980-4-10 19873 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2413  Trifolium willdenovii John Hunter Thomas 1988-5-3 24446 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2414  Trifolium willdenovii Carol Zabel 1989-4-19 13 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM277649  Trifolium willdenovii Lyman D. Benson 1930-5-3 2095 San Mateo Roadside on La Honda Grade. Above Woodside. Santa Cruz Mtn range. 305 Comment
  UC137717  Trifolium willdenovii C. F. B. 1903-4-8 1923 San Mateo San Andreas Lake Comment
  UC203045  Trifolium willdenovii A. D. E. Elmer May, 1903 4716 San Mateo Belmont Comment
  UC74993  Trifolium willdenovii C. F. B. 1902-4-4 445 San Mateo Crystal Springs Lake Comment
  UCSC008228  Trifolium willdenovii Randall Morgan 1995-6-22 2799 San Mateo Water Tank Creek near its confluence with Pescadero Creek Comment
  CAS-BOT-BC451910  Triglochin maritima Ira L. Wiggins 1946-4-30 11200 San Mateo On west side of Bayshore Highway 1/2 mile north of Redwood City. Comment
  CAS-BOT-BC521064  Trillium chloropetalum var. giganteum Alice Eastwood 1916-3-1 s.n. San Mateo San Mateo Comment
  CAS-BOT-BC521205  Trillium chloropetalum var. giganteum L. R. A. 1902-4-13 2331 San Mateo Crystal Springs Lake Comment
  POM170122  Trillium chloropetalum var. giganteum Stewart H. Burnham 1894-2-24 10525 San Mateo Summit Springs. Comment
  POM193597  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-17 s.n. San Mateo Ravine south side of Montana Mountains. Comment
  CAS-BOT-BC133430  Trillium ovatum George Oberlander 1950-3-11 455 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC133436  Trillium ovatum Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC133442  Trillium ovatum Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC133443  Trillium ovatum D. T. Fullaway 1908-4-1 s.n. San Mateo King's Mountain Comment
  CAS-BOT-BC133449  Trillium ovatum W. R. Dudley 1893-2-19 s.n. San Mateo On Alpine Road above La Honda Comment
  SD39137  Trillium ovatum Marie Cummings 1933-4-11 9 San Mateo Spring Valley. Comment
  CAS-BOT-BC238554  Triphysaria floribunda Alice Eastwood 1919-5-19 s.n. San Mateo San Bruno Hills, San Francisco Comment
  CAS-BOT-BC238575  Triphysaria floribunda R. S. Ferris; I. L. Wiggins 1932-4-7 8038 A San Mateo Hills above Colma Comment
  SBBG40480  Triphysaria versicolor subsp. versicolor W. J. Dress 1951-5-12 San Mateo 4.5 mi N of Pigeon Point Comment
  CAS-BOT-BC526101  Triteleia ixioides subsp. ixioides L. R. Abrams 1907-8-26 s.n. San Mateo Kings Mountain Comment
  UCR156579  Triteleia ixioides var. ixioides P. W. Rundel 1963-7-7 1136 San Mateo San Francisco Bay watershed, Santa Cruz Mountain Range, South Spring Rd., Woodside 500 Comment
  JROH4746  Triteleia laxa John H. Thomas 1967-5-10 12852 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC526360  Triteleia laxa H. L. Dale 1920-6-1 s.n. San Mateo Back of Menlo Park Comment
  JROH4745  Triteleia laxa John H. Thomas 1963-5-31 10156 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Westridge end of ridge in oak woodland Comment
  SEINET12044760  Triteleia laxa L. S. Rose 1933-1 33169 San Mateo Redwood City Comment
  CAS-BOT-BC67379  Tropidocarpum gracile Le Roy Abrams 1898-4-1 s.n. San Mateo Portola. Comment
  JEPS54258  Tropidocarpum gracile R. J. S. 1908-3-25 San Mateo Los Buellas hills Mt. Hamilton Range Comment
  CAS-BOT-BC74060  Turritis glabra Volney Rattan 1877-1-1 s.n. San Mateo San Mateo Cemetery. Comment
  CAS-BOT-BC74062  Turritis glabra Margaret A. Barry 1938-4-28 s.n. San Mateo On Coal Mine Ridge. Comment
  CAS-BOT-BC74063  Turritis glabra George Oberlander 1950-5-28 954 San Mateo San Francisco Watershed Reserve. Southern Cahill Ridge. Comment
  JROH5534  Typha angustifolia John H. Thomas 1973-6-15 16852 San Mateo Jasper Ridge Biological Preserve, Stanford University. By dam in Searsville Lake. Comment
  RSA149146  Ulex europaeus John H. Thomas 1961-5-7 9322 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  RSA254229  Ulex europaeus Robert A. Norris 1975-3-31 2292 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  JROH4226  Ulmus minor John Hunter Thomas 1992-5-14 25222 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp Comment
  CAS-BOT-BC73689  Ulmus parvifolia John Thomas Howell 1966-7-24 41997 San Mateo Burlingame - in flower beds near planed trees, Trousdale Ave. just west of El Camino Real. Comment
  JROH142  Umbellularia californica John Hunter Thomas 1981-12-21 20792 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12102550  Umbellularia californica G. A. McCallum 1933-1 s.n. San Mateo near San Francisquita Creek Comment
  UC5968  Urtica dioica subsp. holosericea J. Burtt Davy 1895-3-20 1055 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC404023  Urtica dioica subsp. holosericea Mrs. E. C. Sutliffe 1933-7-12 s.n. San Mateo Alpine Creek Road, Skyline Blvd. to La Honda Comment
  POM87994  Urtica dioica subsp. holosericea L. R. Abrams 1901-09 2218 San Mateo Menlo Park. Comment
  RSA152074  Urtica urens John H. Thomas 1961-5-6 9225 San Mateo About 0.25 mile west of center of Pescadero. 15 Comment
  JEPS15041  Utricularia macrorhiza Roxana S. Ferris Oct. 1920 2103 San Mateo 2nd. mud lake Coalmine Ridge; Santa Cruz Mt. Peninsula, Coalmine Ridge Comment
  CAS-BOT-BC199358  Vaccinium ovatum A. D. E. Elmer 1903-4-1 4561 San Mateo King's [Kings] Mountain Comment
  CAS-BOT-BC199365  Vaccinium ovatum Elizabeth McClintock 1966-5-1 s.n. San Mateo Kamchatka Point Comment
  UC141803  Vaccinium ovatum C. F. Baker 1902-1-15 242 San Mateo w side Kings Mountain Comment
  SEINET11972530  Vaccinium ovatum Unknown 1906-1 79 San Mateo Santa Cruz Peninsula. Kings Mt. Santa Cruz Mts 457 Comment
  SEINET11972531  Vaccinium ovatum G. A. McCallum 1933-1 s.n. San Mateo near La Honda grade Comment
  UC22218  Vaccinium parvifolium W. J. V. Osterhout Jul 1899 San Mateo Near Pescadero Comment
  CAS-BOT-BC76139  Vancouveria planipetala Eric Walther 1919-6-9 s.n. San Mateo Woodside. Comment
  UC1206448  Vancouveria planipetala W. R. Dudley 1895-6-6 San Mateo near Peters Creek (this side of Iverson's); Santa Cruz Peninsula, near Peters Creek Comment
  UC306777  Vancouveria planipetala A. D. E. Elmer May, 1903 4922 San Mateo Pescadero Creek on the Pescadero Creek (Iverson's Place) Comment
  JROH4148  Verbascum thapsus John Hunter Thomas 1982-5-25 20963 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA39072  Verbascum virgatum Joseph Hannen 2013-7-15 PDR# 410 P06096014 San Mateo Redwood City; Edgewood Road. 0 Comment
  SD38891  Verbena lasiostachys Cummings, Mc Callum 1933-5-24 3726 San Mateo Open Hills in Spring Valley Comment
  JROH4259  Verbena lasiostachys var. lasiostachys John H. Thomas 1971-5-30 15975 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4261  Verbena lasiostachys var. lasiostachys John H. Thomas 1975-6-5 17932 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just outside gate. Comment
  JROH4275  Verbena lasiostachys var. scabrida John H. Thomas 1973-6-15 16834 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4276  Verbena lasiostachys var. scabrida John H. Thomas 1974-10-26 17626 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4155  Veronica persica Carol Zabel 2007-4-30 67 San Mateo Jasper Ridge Biological Preserve, Stanford University; caretaker's garden area and other areas around the caretaker's residence Comment
  CHSC27883  Vicia gigantea Susan Perkins 1978-3-24 14 San Mateo Stage Road, 4 mi. s of San Gregorio, 2.5 mi n of Pescadeero, ca. 8 mi sw of La Honda. 60 Comment
  CHSC22681  Vicia sativa Robert A. Schlising; S. Banwar 1963-3-15 2446 San Mateo Along King's Mtn. Road, southeast of entrance to Huddart Park. Comment
  UC1191599  Vicia sativa Malcolm A. Nobs and S. Galen Smith 1949-8-25 1547 San Mateo Sharp Park; marshes at Sharp Park Comment
  UCR101650  Vicia sativa George K. Helmkamp, E. A. Helmkamp 1998-5-16 3749 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  UCD164424  Vicia sativa subsp. nigra Peter Rubtzoff 1977-6-21 9062 San Mateo San Bruno Mounains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  UCR123141  Vicia sativa subsp. sativa George K. Helmkamp, E. A. Helmkamp 2001-6-2 6765 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  JROH5827  Vicia tetrasperma Ann Lambrecht 2012-6-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ~ 50 meters north of Preserve main gate between roads H and C (Sector 29 E1 or E2) 118 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
  JROH2455  Vicia villosa subsp. varia John Rawlings 2012-5-15 1120 San Mateo Jasper Ridge Biological Preserve, Stanford University. South side of Road B. 89 Comment
  UCR51648  Vinca major R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  SFV8403  Vinca major P. Kuehn 1967-5-7 15 San Mateo Skyline Blvd, 8 miles from Half Moon Bay. 610 Comment
  JEPS91201  Viola glabella Dean W. Taylor 1972-2-27 1336 San Mateo near San Andreas Lake 121 Comment
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Feb 2 2012
  POM135220  Viola glabella C. F. Baker 1902-3-18 332 San Mateo King's Mountain Comment
  CAS-BOT-BC536834  Viola glabella W. R. Dudley 1898-3-5 s.n. San Mateo Santa Cruz Mountain Peninsula: Kings Mountain Comment
  RSA130595  Viola glabella Roxana S. Ferris 1920-4-26 1961 San Mateo Near mouth of canyon of Pescadero Creek. The Santa Cruz Mtn Peninsula. 244 Comment
  SD38904  Viola ocellata Edith A. Purer 1933-4-25 3645 San Mateo King's Mountain Road Comment
  UC581538  Viola ocellata Herbert L. Mason 1927-4-23 3696 San Mateo Pescadero Creek near Bloomquists Mill; Pescadero Creek Comment
  UCD110695  Viola ocellata W. D. McLellan 1954-5-17 58 San Mateo Memorial Park near Pescadero. Comment
  JEPS50194  Viola odorata James G. Daly c. 1934 181 San Mateo 4 mi w of Skyline (Upper Corte Madera Canyon); Santa Cruz Mountains, Upper Corte Madera Canyon Comment
  RSA412720  Viola pedunculata Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  RSA249485  Viola pedunculata John F. Emmel 1971-6-21 397 San Mateo On grassy slope above Guadalupe Cyn Parkway, 0.4 air mile SSW of Midway Village School, San Bruno Mtns. 107 Comment
  RSA130764  Viola sempervirens W. R. Dudley 1895-6-6 s.n. San Mateo By road to Moore's above Iverson's, Pescadero Creek. The Santa Cruz Peninsula. Comment
  JEPS50233  Viola sempervirens James G. Daly c. 1934 180 San Mateo 4 mi w of Skyline (Upper Corte de Madera Canyon); Santa Cruz Mountains, Upper Corte de Madera Canyon Comment
  SEINET215125 Image available Viola sempervirens C. Hendel 1973-4-15 14 San Mateo Tunitas Creek Road 6.5 mi from its jct. with Skyline Boulevard ca. 9 mi S of San Mateo Comment